drivers/scsi/lpfc/lpfc_init.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2017-2024 Broadcom. All Rights Reserved. The term *
   5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  *
   6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7  * EMULEX and SLI are trademarks of Emulex.                        *
   8  * www.broadcom.com                                                *
   9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10  *                                                                 *
  11  * This program is free software; you can redistribute it and/or   *
  12  * modify it under the terms of version 2 of the GNU General       *
  13  * Public License as published by the Free Software Foundation.    *
  14  * This program is distributed in the hope that it will be useful. *
  15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20  * more details, a copy of which can be found in the file COPYING  *
  21  * included with this package.                                     *
  22  *******************************************************************/
  23
  24 #include <linux/blkdev.h>
  25 #include <linux/delay.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/idr.h>
  28 #include <linux/interrupt.h>
  29 #include <linux/module.h>
  30 #include <linux/kthread.h>
  31 #include <linux/pci.h>
  32 #include <linux/spinlock.h>
  33 #include <linux/sched/clock.h>
  34 #include <linux/ctype.h>
  35 #include <linux/slab.h>
  36 #include <linux/firmware.h>
  37 #include <linux/miscdevice.h>
  38 #include <linux/percpu.h>
  39 #include <linux/irq.h>
  40 #include <linux/bitops.h>
  41 #include <linux/crash_dump.h>
  42 #include <linux/cpu.h>
  43 #include <linux/cpuhotplug.h>
  44
  45 #include <scsi/scsi.h>
  46 #include <scsi/scsi_device.h>
  47 #include <scsi/scsi_host.h>
  48 #include <scsi/scsi_transport_fc.h>
  49 #include <scsi/scsi_tcq.h>
  50 #include <scsi/fc/fc_fs.h>
  51
  52 #include "lpfc_hw4.h"
  53 #include "lpfc_hw.h"
  54 #include "lpfc_sli.h"
  55 #include "lpfc_sli4.h"
  56 #include "lpfc_nl.h"
  57 #include "lpfc_disc.h"
  58 #include "lpfc.h"
  59 #include "lpfc_scsi.h"
  60 #include "lpfc_nvme.h"
  61 #include "lpfc_logmsg.h"
  62 #include "lpfc_crtn.h"
  63 #include "lpfc_vport.h"
  64 #include "lpfc_version.h"
  65 #include "lpfc_ids.h"
  66
  67 static enum cpuhp_state lpfc_cpuhp_state;
  68 /* Used when mapping IRQ vectors in a driver centric manner */
  69 static uint32_t lpfc_present_cpu;
  70 static bool lpfc_pldv_detect;
  71
  72 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
  73 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
  74 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
  75 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  76 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  77 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  78 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  79 static int lpfc_setup_endian_order(struct lpfc_hba *);
  80 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  81 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  82 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  83 static void lpfc_init_sgl_list(struct lpfc_hba *);
  84 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  85 static void lpfc_free_active_sgl(struct lpfc_hba *);
  86 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  87 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  88 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  89 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  90 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  91 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  92 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  93 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  94 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  95 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  96 static int lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *);
  97 static void lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba);
  98 static void lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba);
  99
 100 static struct scsi_transport_template *lpfc_transport_template = NULL;
 101 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 102 static DEFINE_IDR(lpfc_hba_index);
 103 #define LPFC_NVMET_BUF_POST 254
 104 static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport);
 105 static void lpfc_cgn_update_tstamp(struct lpfc_hba *phba, struct lpfc_cgn_ts *ts);
 106
 107 /**
 108  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 109  * @phba: pointer to lpfc hba data structure.
 110  *
 111  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 112  * mailbox command. It retrieves the revision information from the HBA and
 113  * collects the Vital Product Data (VPD) about the HBA for preparing the
 114  * configuration of the HBA.
 115  *
 116  * Return codes:
 117  *   0 - success.
 118  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 119  *   Any other value - indicates an error.
 120  **/
 121 int
 122 lpfc_config_port_prep(struct lpfc_hba *phba)
 123 {
 124         lpfc_vpd_t *vp = &phba->vpd;
 125         int i = 0, rc;
 126         LPFC_MBOXQ_t *pmb;
 127         MAILBOX_t *mb;
 128         char *lpfc_vpd_data = NULL;
 129         uint16_t offset = 0;
 130         static char licensed[56] =
 131                     "key unlock for use with gnu public licensed code only\0";
 132         static int init_key = 1;
 133
 134         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 135         if (!pmb) {
 136                 phba->link_state = LPFC_HBA_ERROR;
 137                 return -ENOMEM;
 138         }
 139
 140         mb = &pmb->u.mb;
 141         phba->link_state = LPFC_INIT_MBX_CMDS;
 142
 143         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 144                 if (init_key) {
 145                         uint32_t *ptext = (uint32_t *) licensed;
 146
 147                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 148                                 *ptext = cpu_to_be32(*ptext);
 149                         init_key = 0;
 150                 }
 151
 152                 lpfc_read_nv(phba, pmb);
 153                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 154                         sizeof (mb->un.varRDnvp.rsvd3));
 155                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 156                          sizeof (licensed));
 157
 158                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 159
 160                 if (rc != MBX_SUCCESS) {
 161                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 162                                         "0324 Config Port initialization "
 163                                         "error, mbxCmd x%x READ_NVPARM, "
 164                                         "mbxStatus x%x\n",
 165                                         mb->mbxCommand, mb->mbxStatus);
 166                         mempool_free(pmb, phba->mbox_mem_pool);
 167                         return -ERESTART;
 168                 }
 169                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 170                        sizeof(phba->wwnn));
 171                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 172                        sizeof(phba->wwpn));
 173         }
 174
 175         /*
 176          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 177          * which was already set in lpfc_get_cfgparam()
 178          */
 179         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 180
 181         /* Setup and issue mailbox READ REV command */
 182         lpfc_read_rev(phba, pmb);
 183         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 184         if (rc != MBX_SUCCESS) {
 185                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 186                                 "0439 Adapter failed to init, mbxCmd x%x "
 187                                 "READ_REV, mbxStatus x%x\n",
 188                                 mb->mbxCommand, mb->mbxStatus);
 189                 mempool_free( pmb, phba->mbox_mem_pool);
 190                 return -ERESTART;
 191         }
 192
 193
 194         /*
 195          * The value of rr must be 1 since the driver set the cv field to 1.
 196          * This setting requires the FW to set all revision fields.
 197          */
 198         if (mb->un.varRdRev.rr == 0) {
 199                 vp->rev.rBit = 0;
 200                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 201                                 "0440 Adapter failed to init, READ_REV has "
 202                                 "missing revision information.\n");
 203                 mempool_free(pmb, phba->mbox_mem_pool);
 204                 return -ERESTART;
 205         }
 206
 207         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 208                 mempool_free(pmb, phba->mbox_mem_pool);
 209                 return -EINVAL;
 210         }
 211
 212         /* Save information as VPD data */
 213         vp->rev.rBit = 1;
 214         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 215         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 216         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 217         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 218         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 219         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 220         vp->rev.smRev = mb->un.varRdRev.smRev;
 221         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 222         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 223         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 224         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 225         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 226         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 227         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 228         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 229
 230         /* If the sli feature level is less then 9, we must
 231          * tear down all RPIs and VPIs on link down if NPIV
 232          * is enabled.
 233          */
 234         if (vp->rev.feaLevelHigh < 9)
 235                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 236
 237         if (lpfc_is_LC_HBA(phba->pcidev->device))
 238                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 239                                                 sizeof (phba->RandomData));
 240
 241         /* Get adapter VPD information */
 242         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 243         if (!lpfc_vpd_data)
 244                 goto out_free_mbox;
 245         do {
 246                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 247                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 248
 249                 if (rc != MBX_SUCCESS) {
 250                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 251                                         "0441 VPD not present on adapter, "
 252                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 253                                         mb->mbxCommand, mb->mbxStatus);
 254                         mb->un.varDmp.word_cnt = 0;
 255                 }
 256                 /* dump mem may return a zero when finished or we got a
 257                  * mailbox error, either way we are done.
 258                  */
 259                 if (mb->un.varDmp.word_cnt == 0)
 260                         break;
 261
 262                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 263                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 264                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 265                                       lpfc_vpd_data + offset,
 266                                       mb->un.varDmp.word_cnt);
 267                 offset += mb->un.varDmp.word_cnt;
 268         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 269
 270         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 271
 272         kfree(lpfc_vpd_data);
 273 out_free_mbox:
 274         mempool_free(pmb, phba->mbox_mem_pool);
 275         return 0;
 276 }
 277
 278 /**
 279  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 280  * @phba: pointer to lpfc hba data structure.
 281  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 282  *
 283  * This is the completion handler for driver's configuring asynchronous event
 284  * mailbox command to the device. If the mailbox command returns successfully,
 285  * it will set internal async event support flag to 1; otherwise, it will
 286  * set internal async event support flag to 0.
 287  **/
 288 static void
 289 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 290 {
 291         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 292                 phba->temp_sensor_support = 1;
 293         else
 294                 phba->temp_sensor_support = 0;
 295         mempool_free(pmboxq, phba->mbox_mem_pool);
 296         return;
 297 }
 298
 299 /**
 300  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 301  * @phba: pointer to lpfc hba data structure.
 302  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 303  *
 304  * This is the completion handler for dump mailbox command for getting
 305  * wake up parameters. When this command complete, the response contain
 306  * Option rom version of the HBA. This function translate the version number
 307  * into a human readable string and store it in OptionROMVersion.
 308  **/
 309 static void
 310 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 311 {
 312         struct prog_id *prg;
 313         uint32_t prog_id_word;
 314         char dist = ' ';
 315         /* character array used for decoding dist type. */
 316         char dist_char[] = "nabx";
 317
 318         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 319                 mempool_free(pmboxq, phba->mbox_mem_pool);
 320                 return;
 321         }
 322
 323         prg = (struct prog_id *) &prog_id_word;
 324
 325         /* word 7 contain option rom version */
 326         prog_id_word = pmboxq->u.mb.un.varWords[7];
 327
 328         /* Decode the Option rom version word to a readable string */
 329         dist = dist_char[prg->dist];
 330
 331         if ((prg->dist == 3) && (prg->num == 0))
 332                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 333                         prg->ver, prg->rev, prg->lev);
 334         else
 335                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 336                         prg->ver, prg->rev, prg->lev,
 337                         dist, prg->num);
 338         mempool_free(pmboxq, phba->mbox_mem_pool);
 339         return;
 340 }
 341
 342 /**
 343  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 344  * @vport: pointer to lpfc vport data structure.
 345  *
 346  *
 347  * Return codes
 348  *   None.
 349  **/
 350 void
 351 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 352 {
 353         struct lpfc_hba *phba = vport->phba;
 354
 355         /*
 356          * If the name is empty or there exists a soft name
 357          * then copy the service params name, otherwise use the fc name
 358          */
 359         if (vport->fc_nodename.u.wwn[0] == 0)
 360                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 361                         sizeof(struct lpfc_name));
 362         else
 363                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 364                         sizeof(struct lpfc_name));
 365
 366         /*
 367          * If the port name has changed, then set the Param changes flag
 368          * to unreg the login
 369          */
 370         if (vport->fc_portname.u.wwn[0] != 0 &&
 371                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 372                        sizeof(struct lpfc_name))) {
 373                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 374
 375                 if (phba->sli_rev == LPFC_SLI_REV4 &&
 376                     vport->port_type == LPFC_PHYSICAL_PORT &&
 377                     phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_FABRIC) {
 378                         if (!(phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG))
 379                                 phba->sli4_hba.fawwpn_flag &=
 380                                                 ~LPFC_FAWWPN_FABRIC;
 381                         lpfc_printf_log(phba, KERN_INFO,
 382                                         LOG_SLI | LOG_DISCOVERY | LOG_ELS,
 383                                         "2701 FA-PWWN change WWPN from %llx to "
 384                                         "%llx: vflag x%x fawwpn_flag x%x\n",
 385                                         wwn_to_u64(vport->fc_portname.u.wwn),
 386                                         wwn_to_u64
 387                                            (vport->fc_sparam.portName.u.wwn),
 388                                         vport->vport_flag,
 389                                         phba->sli4_hba.fawwpn_flag);
 390                         memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 391                                sizeof(struct lpfc_name));
 392                 }
 393         }
 394
 395         if (vport->fc_portname.u.wwn[0] == 0)
 396                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 397                        sizeof(struct lpfc_name));
 398         else
 399                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 400                        sizeof(struct lpfc_name));
 401 }
 402
 403 /**
 404  * lpfc_config_port_post - Perform lpfc initialization after config port
 405  * @phba: pointer to lpfc hba data structure.
 406  *
 407  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 408  * command call. It performs all internal resource and state setups on the
 409  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 410  * ELS ring timers, etc.
 411  *
 412  * Return codes
 413  *   0 - success.
 414  *   Any other value - error.
 415  **/
 416 int
 417 lpfc_config_port_post(struct lpfc_hba *phba)
 418 {
 419         struct lpfc_vport *vport = phba->pport;
 420         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 421         LPFC_MBOXQ_t *pmb;
 422         MAILBOX_t *mb;
 423         struct lpfc_dmabuf *mp;
 424         struct lpfc_sli *psli = &phba->sli;
 425         uint32_t status, timeout;
 426         int i, j;
 427         int rc;
 428
 429         spin_lock_irq(&phba->hbalock);
 430         /*
 431          * If the Config port completed correctly the HBA is not
 432          * over heated any more.
 433          */
 434         if (phba->over_temp_state == HBA_OVER_TEMP)
 435                 phba->over_temp_state = HBA_NORMAL_TEMP;
 436         spin_unlock_irq(&phba->hbalock);
 437
 438         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 439         if (!pmb) {
 440                 phba->link_state = LPFC_HBA_ERROR;
 441                 return -ENOMEM;
 442         }
 443         mb = &pmb->u.mb;
 444
 445         /* Get login parameters for NID.  */
 446         rc = lpfc_read_sparam(phba, pmb, 0);
 447         if (rc) {
 448                 mempool_free(pmb, phba->mbox_mem_pool);
 449                 return -ENOMEM;
 450         }
 451
 452         pmb->vport = vport;
 453         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 454                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 455                                 "0448 Adapter failed init, mbxCmd x%x "
 456                                 "READ_SPARM mbxStatus x%x\n",
 457                                 mb->mbxCommand, mb->mbxStatus);
 458                 phba->link_state = LPFC_HBA_ERROR;
 459                 lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
 460                 return -EIO;
 461         }
 462
 463         mp = pmb->ctx_buf;
 464
 465         /* This dmabuf was allocated by lpfc_read_sparam. The dmabuf is no
 466          * longer needed.  Prevent unintended ctx_buf access as the mbox is
 467          * reused.
 468          */
 469         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 470         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 471         kfree(mp);
 472         pmb->ctx_buf = NULL;
 473         lpfc_update_vport_wwn(vport);
 474
 475         /* Update the fc_host data structures with new wwn. */
 476         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 477         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 478         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 479
 480         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 481         /* This should be consolidated into parse_vpd ? - mr */
 482         if (phba->SerialNumber[0] == 0) {
 483                 uint8_t *outptr;
 484
 485                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 486                 for (i = 0; i < 12; i++) {
 487                         status = *outptr++;
 488                         j = ((status & 0xf0) >> 4);
 489                         if (j <= 9)
 490                                 phba->SerialNumber[i] =
 491                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 492                         else
 493                                 phba->SerialNumber[i] =
 494                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 495                         i++;
 496                         j = (status & 0xf);
 497                         if (j <= 9)
 498                                 phba->SerialNumber[i] =
 499                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 500                         else
 501                                 phba->SerialNumber[i] =
 502                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 503                 }
 504         }
 505
 506         lpfc_read_config(phba, pmb);
 507         pmb->vport = vport;
 508         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 509                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 510                                 "0453 Adapter failed to init, mbxCmd x%x "
 511                                 "READ_CONFIG, mbxStatus x%x\n",
 512                                 mb->mbxCommand, mb->mbxStatus);
 513                 phba->link_state = LPFC_HBA_ERROR;
 514                 mempool_free( pmb, phba->mbox_mem_pool);
 515                 return -EIO;
 516         }
 517
 518         /* Check if the port is disabled */
 519         lpfc_sli_read_link_ste(phba);
 520
 521         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 522         if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
 523                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 524                                 "3359 HBA queue depth changed from %d to %d\n",
 525                                 phba->cfg_hba_queue_depth,
 526                                 mb->un.varRdConfig.max_xri);
 527                 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
 528         }
 529
 530         phba->lmt = mb->un.varRdConfig.lmt;
 531
 532         /* Get the default values for Model Name and Description */
 533         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 534
 535         phba->link_state = LPFC_LINK_DOWN;
 536
 537         /* Only process IOCBs on ELS ring till hba_state is READY */
 538         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 539                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 540         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 541                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 542
 543         /* Post receive buffers for desired rings */
 544         if (phba->sli_rev != 3)
 545                 lpfc_post_rcv_buf(phba);
 546
 547         /*
 548          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 549          */
 550         if (phba->intr_type == MSIX) {
 551                 rc = lpfc_config_msi(phba, pmb);
 552                 if (rc) {
 553                         mempool_free(pmb, phba->mbox_mem_pool);
 554                         return -EIO;
 555                 }
 556                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 557                 if (rc != MBX_SUCCESS) {
 558                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 559                                         "0352 Config MSI mailbox command "
 560                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 561                                         pmb->u.mb.mbxCommand,
 562                                         pmb->u.mb.mbxStatus);
 563                         mempool_free(pmb, phba->mbox_mem_pool);
 564                         return -EIO;
 565                 }
 566         }
 567
 568         spin_lock_irq(&phba->hbalock);
 569         /* Initialize ERATT handling flag */
 570         clear_bit(HBA_ERATT_HANDLED, &phba->hba_flag);
 571
 572         /* Enable appropriate host interrupts */
 573         if (lpfc_readl(phba->HCregaddr, &status)) {
 574                 spin_unlock_irq(&phba->hbalock);
 575                 return -EIO;
 576         }
 577         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 578         if (psli->num_rings > 0)
 579                 status |= HC_R0INT_ENA;
 580         if (psli->num_rings > 1)
 581                 status |= HC_R1INT_ENA;
 582         if (psli->num_rings > 2)
 583                 status |= HC_R2INT_ENA;
 584         if (psli->num_rings > 3)
 585                 status |= HC_R3INT_ENA;
 586
 587         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 588             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 589                 status &= ~(HC_R0INT_ENA);
 590
 591         writel(status, phba->HCregaddr);
 592         readl(phba->HCregaddr); /* flush */
 593         spin_unlock_irq(&phba->hbalock);
 594
 595         /* Set up ring-0 (ELS) timer */
 596         timeout = phba->fc_ratov * 2;
 597         mod_timer(&vport->els_tmofunc,
 598                   jiffies + msecs_to_jiffies(1000 * timeout));
 599         /* Set up heart beat (HB) timer */
 600         mod_timer(&phba->hb_tmofunc,
 601                   jiffies + secs_to_jiffies(LPFC_HB_MBOX_INTERVAL));
 602         clear_bit(HBA_HBEAT_INP, &phba->hba_flag);
 603         clear_bit(HBA_HBEAT_TMO, &phba->hba_flag);
 604         phba->last_completion_time = jiffies;
 605         /* Set up error attention (ERATT) polling timer */
 606         mod_timer(&phba->eratt_poll,
 607                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 608
 609         if (test_bit(LINK_DISABLED, &phba->hba_flag)) {
 610                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 611                                 "2598 Adapter Link is disabled.\n");
 612                 lpfc_down_link(phba, pmb);
 613                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 614                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 615                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 616                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 617                                         "2599 Adapter failed to issue DOWN_LINK"
 618                                         " mbox command rc 0x%x\n", rc);
 619
 620                         mempool_free(pmb, phba->mbox_mem_pool);
 621                         return -EIO;
 622                 }
 623         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 624                 mempool_free(pmb, phba->mbox_mem_pool);
 625                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 626                 if (rc)
 627                         return rc;
 628         }
 629         /* MBOX buffer will be freed in mbox compl */
 630         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 631         if (!pmb) {
 632                 phba->link_state = LPFC_HBA_ERROR;
 633                 return -ENOMEM;
 634         }
 635
 636         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 637         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 638         pmb->vport = phba->pport;
 639         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 640
 641         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 642                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 643                                 "0456 Adapter failed to issue "
 644                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 645                                 rc);
 646                 mempool_free(pmb, phba->mbox_mem_pool);
 647         }
 648
 649         /* Get Option rom version */
 650         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 651         if (!pmb) {
 652                 phba->link_state = LPFC_HBA_ERROR;
 653                 return -ENOMEM;
 654         }
 655
 656         lpfc_dump_wakeup_param(phba, pmb);
 657         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 658         pmb->vport = phba->pport;
 659         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 660
 661         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 662                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 663                                 "0435 Adapter failed "
 664                                 "to get Option ROM version status x%x\n", rc);
 665                 mempool_free(pmb, phba->mbox_mem_pool);
 666         }
 667
 668         return 0;
 669 }
 670
 671 /**
 672  * lpfc_sli4_refresh_params - update driver copy of params.
 673  * @phba: Pointer to HBA context object.
 674  *
 675  * This is called to refresh driver copy of dynamic fields from the
 676  * common_get_sli4_parameters descriptor.
 677  **/
 678 int
 679 lpfc_sli4_refresh_params(struct lpfc_hba *phba)
 680 {
 681         LPFC_MBOXQ_t *mboxq;
 682         struct lpfc_mqe *mqe;
 683         struct lpfc_sli4_parameters *mbx_sli4_parameters;
 684         int length, rc;
 685
 686         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 687         if (!mboxq)
 688                 return -ENOMEM;
 689
 690         mqe = &mboxq->u.mqe;
 691         /* Read the port's SLI4 Config Parameters */
 692         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
 693                   sizeof(struct lpfc_sli4_cfg_mhdr));
 694         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
 695                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
 696                          length, LPFC_SLI4_MBX_EMBED);
 697
 698         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
 699         if (unlikely(rc)) {
 700                 mempool_free(mboxq, phba->mbox_mem_pool);
 701                 return rc;
 702         }
 703         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
 704         phba->sli4_hba.pc_sli4_params.mi_cap =
 705                 bf_get(cfg_mi_ver, mbx_sli4_parameters);
 706
 707         /* Are we forcing MI off via module parameter? */
 708         if (phba->cfg_enable_mi)
 709                 phba->sli4_hba.pc_sli4_params.mi_ver =
 710                         bf_get(cfg_mi_ver, mbx_sli4_parameters);
 711         else
 712                 phba->sli4_hba.pc_sli4_params.mi_ver = 0;
 713
 714         phba->sli4_hba.pc_sli4_params.cmf =
 715                         bf_get(cfg_cmf, mbx_sli4_parameters);
 716         phba->sli4_hba.pc_sli4_params.pls =
 717                         bf_get(cfg_pvl, mbx_sli4_parameters);
 718
 719         mempool_free(mboxq, phba->mbox_mem_pool);
 720         return rc;
 721 }
 722
 723 /**
 724  * lpfc_hba_init_link - Initialize the FC link
 725  * @phba: pointer to lpfc hba data structure.
 726  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 727  *
 728  * This routine will issue the INIT_LINK mailbox command call.
 729  * It is available to other drivers through the lpfc_hba data
 730  * structure for use as a delayed link up mechanism with the
 731  * module parameter lpfc_suppress_link_up.
 732  *
 733  * Return code
 734  *              0 - success
 735  *              Any other value - error
 736  **/
 737 static int
 738 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 739 {
 740         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 741 }
 742
 743 /**
 744  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 745  * @phba: pointer to lpfc hba data structure.
 746  * @fc_topology: desired fc topology.
 747  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 748  *
 749  * This routine will issue the INIT_LINK mailbox command call.
 750  * It is available to other drivers through the lpfc_hba data
 751  * structure for use as a delayed link up mechanism with the
 752  * module parameter lpfc_suppress_link_up.
 753  *
 754  * Return code
 755  *              0 - success
 756  *              Any other value - error
 757  **/
 758 int
 759 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 760                                uint32_t flag)
 761 {
 762         struct lpfc_vport *vport = phba->pport;
 763         LPFC_MBOXQ_t *pmb;
 764         MAILBOX_t *mb;
 765         int rc;
 766
 767         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 768         if (!pmb) {
 769                 phba->link_state = LPFC_HBA_ERROR;
 770                 return -ENOMEM;
 771         }
 772         mb = &pmb->u.mb;
 773         pmb->vport = vport;
 774
 775         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 776             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 777              !(phba->lmt & LMT_1Gb)) ||
 778             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 779              !(phba->lmt & LMT_2Gb)) ||
 780             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 781              !(phba->lmt & LMT_4Gb)) ||
 782             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 783              !(phba->lmt & LMT_8Gb)) ||
 784             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 785              !(phba->lmt & LMT_10Gb)) ||
 786             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 787              !(phba->lmt & LMT_16Gb)) ||
 788             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 789              !(phba->lmt & LMT_32Gb)) ||
 790             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 791              !(phba->lmt & LMT_64Gb))) {
 792                 /* Reset link speed to auto */
 793                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 794                                 "1302 Invalid speed for this board:%d "
 795                                 "Reset link speed to auto.\n",
 796                                 phba->cfg_link_speed);
 797                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 798         }
 799         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 800         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 801         if (phba->sli_rev < LPFC_SLI_REV4)
 802                 lpfc_set_loopback_flag(phba);
 803         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 804         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 805                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 806                                 "0498 Adapter failed to init, mbxCmd x%x "
 807                                 "INIT_LINK, mbxStatus x%x\n",
 808                                 mb->mbxCommand, mb->mbxStatus);
 809                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 810                         /* Clear all interrupt enable conditions */
 811                         writel(0, phba->HCregaddr);
 812                         readl(phba->HCregaddr); /* flush */
 813                         /* Clear all pending interrupts */
 814                         writel(0xffffffff, phba->HAregaddr);
 815                         readl(phba->HAregaddr); /* flush */
 816                 }
 817                 phba->link_state = LPFC_HBA_ERROR;
 818                 if (rc != MBX_BUSY || flag == MBX_POLL)
 819                         mempool_free(pmb, phba->mbox_mem_pool);
 820                 return -EIO;
 821         }
 822         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 823         if (flag == MBX_POLL)
 824                 mempool_free(pmb, phba->mbox_mem_pool);
 825
 826         return 0;
 827 }
 828
 829 /**
 830  * lpfc_hba_down_link - this routine downs the FC link
 831  * @phba: pointer to lpfc hba data structure.
 832  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 833  *
 834  * This routine will issue the DOWN_LINK mailbox command call.
 835  * It is available to other drivers through the lpfc_hba data
 836  * structure for use to stop the link.
 837  *
 838  * Return code
 839  *              0 - success
 840  *              Any other value - error
 841  **/
 842 static int
 843 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 844 {
 845         LPFC_MBOXQ_t *pmb;
 846         int rc;
 847
 848         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 849         if (!pmb) {
 850                 phba->link_state = LPFC_HBA_ERROR;
 851                 return -ENOMEM;
 852         }
 853
 854         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 855                         "0491 Adapter Link is disabled.\n");
 856         lpfc_down_link(phba, pmb);
 857         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 858         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 859         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 860                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 861                                 "2522 Adapter failed to issue DOWN_LINK"
 862                                 " mbox command rc 0x%x\n", rc);
 863
 864                 mempool_free(pmb, phba->mbox_mem_pool);
 865                 return -EIO;
 866         }
 867         if (flag == MBX_POLL)
 868                 mempool_free(pmb, phba->mbox_mem_pool);
 869
 870         return 0;
 871 }
 872
 873 /**
 874  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 875  * @phba: pointer to lpfc HBA data structure.
 876  *
 877  * This routine will do LPFC uninitialization before the HBA is reset when
 878  * bringing down the SLI Layer.
 879  *
 880  * Return codes
 881  *   0 - success.
 882  *   Any other value - error.
 883  **/
 884 int
 885 lpfc_hba_down_prep(struct lpfc_hba *phba)
 886 {
 887         struct lpfc_vport **vports;
 888         int i;
 889
 890         if (phba->sli_rev <= LPFC_SLI_REV3) {
 891                 /* Disable interrupts */
 892                 writel(0, phba->HCregaddr);
 893                 readl(phba->HCregaddr); /* flush */
 894         }
 895
 896         if (test_bit(FC_UNLOADING, &phba->pport->load_flag))
 897                 lpfc_cleanup_discovery_resources(phba->pport);
 898         else {
 899                 vports = lpfc_create_vport_work_array(phba);
 900                 if (vports != NULL)
 901                         for (i = 0; i <= phba->max_vports &&
 902                                 vports[i] != NULL; i++)
 903                                 lpfc_cleanup_discovery_resources(vports[i]);
 904                 lpfc_destroy_vport_work_array(phba, vports);
 905         }
 906         return 0;
 907 }
 908
 909 /**
 910  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 911  * rspiocb which got deferred
 912  *
 913  * @phba: pointer to lpfc HBA data structure.
 914  *
 915  * This routine will cleanup completed slow path events after HBA is reset
 916  * when bringing down the SLI Layer.
 917  *
 918  *
 919  * Return codes
 920  *   void.
 921  **/
 922 static void
 923 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 924 {
 925         struct lpfc_iocbq *rspiocbq;
 926         struct hbq_dmabuf *dmabuf;
 927         struct lpfc_cq_event *cq_event;
 928
 929         clear_bit(HBA_SP_QUEUE_EVT, &phba->hba_flag);
 930
 931         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 932                 /* Get the response iocb from the head of work queue */
 933                 spin_lock_irq(&phba->hbalock);
 934                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 935                                  cq_event, struct lpfc_cq_event, list);
 936                 spin_unlock_irq(&phba->hbalock);
 937
 938                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 939                 case CQE_CODE_COMPL_WQE:
 940                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 941                                                  cq_event);
 942                         lpfc_sli_release_iocbq(phba, rspiocbq);
 943                         break;
 944                 case CQE_CODE_RECEIVE:
 945                 case CQE_CODE_RECEIVE_V1:
 946                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 947                                               cq_event);
 948                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 949                 }
 950         }
 951 }
 952
 953 /**
 954  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 955  * @phba: pointer to lpfc HBA data structure.
 956  *
 957  * This routine will cleanup posted ELS buffers after the HBA is reset
 958  * when bringing down the SLI Layer.
 959  *
 960  *
 961  * Return codes
 962  *   void.
 963  **/
 964 static void
 965 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 966 {
 967         struct lpfc_sli *psli = &phba->sli;
 968         struct lpfc_sli_ring *pring;
 969         struct lpfc_dmabuf *mp, *next_mp;
 970         LIST_HEAD(buflist);
 971         int count;
 972
 973         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 974                 lpfc_sli_hbqbuf_free_all(phba);
 975         else {
 976                 /* Cleanup preposted buffers on the ELS ring */
 977                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 978                 spin_lock_irq(&phba->hbalock);
 979                 list_splice_init(&pring->postbufq, &buflist);
 980                 spin_unlock_irq(&phba->hbalock);
 981
 982                 count = 0;
 983                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 984                         list_del(&mp->list);
 985                         count++;
 986                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 987                         kfree(mp);
 988                 }
 989
 990                 spin_lock_irq(&phba->hbalock);
 991                 pring->postbufq_cnt -= count;
 992                 spin_unlock_irq(&phba->hbalock);
 993         }
 994 }
 995
 996 /**
 997  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 998  * @phba: pointer to lpfc HBA data structure.
 999  *
1000  * This routine will cleanup the txcmplq after the HBA is reset when bringing
1001  * down the SLI Layer.
1002  *
1003  * Return codes
1004  *   void
1005  **/
1006 static void
1007 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
1008 {
1009         struct lpfc_sli *psli = &phba->sli;
1010         struct lpfc_queue *qp = NULL;
1011         struct lpfc_sli_ring *pring;
1012         LIST_HEAD(completions);
1013         int i;
1014         struct lpfc_iocbq *piocb, *next_iocb;
1015
1016         if (phba->sli_rev != LPFC_SLI_REV4) {
1017                 for (i = 0; i < psli->num_rings; i++) {
1018                         pring = &psli->sli3_ring[i];
1019                         spin_lock_irq(&phba->hbalock);
1020                         /* At this point in time the HBA is either reset or DOA
1021                          * Nothing should be on txcmplq as it will
1022                          * NEVER complete.
1023                          */
1024                         list_splice_init(&pring->txcmplq, &completions);
1025                         pring->txcmplq_cnt = 0;
1026                         spin_unlock_irq(&phba->hbalock);
1027
1028                         lpfc_sli_abort_iocb_ring(phba, pring);
1029                 }
1030                 /* Cancel all the IOCBs from the completions list */
1031                 lpfc_sli_cancel_iocbs(phba, &completions,
1032                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1033                 return;
1034         }
1035         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
1036                 pring = qp->pring;
1037                 if (!pring)
1038                         continue;
1039                 spin_lock_irq(&pring->ring_lock);
1040                 list_for_each_entry_safe(piocb, next_iocb,
1041                                          &pring->txcmplq, list)
1042                         piocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
1043                 list_splice_init(&pring->txcmplq, &completions);
1044                 pring->txcmplq_cnt = 0;
1045                 spin_unlock_irq(&pring->ring_lock);
1046                 lpfc_sli_abort_iocb_ring(phba, pring);
1047         }
1048         /* Cancel all the IOCBs from the completions list */
1049         lpfc_sli_cancel_iocbs(phba, &completions,
1050                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1051 }
1052
1053 /**
1054  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1055  * @phba: pointer to lpfc HBA data structure.
1056  *
1057  * This routine will do uninitialization after the HBA is reset when bring
1058  * down the SLI Layer.
1059  *
1060  * Return codes
1061  *   0 - success.
1062  *   Any other value - error.
1063  **/
1064 static int
1065 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1066 {
1067         lpfc_hba_free_post_buf(phba);
1068         lpfc_hba_clean_txcmplq(phba);
1069         return 0;
1070 }
1071
1072 /**
1073  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1074  * @phba: pointer to lpfc HBA data structure.
1075  *
1076  * This routine will do uninitialization after the HBA is reset when bring
1077  * down the SLI Layer.
1078  *
1079  * Return codes
1080  *   0 - success.
1081  *   Any other value - error.
1082  **/
1083 static int
1084 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1085 {
1086         struct lpfc_io_buf *psb, *psb_next;
1087         struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
1088         struct lpfc_sli4_hdw_queue *qp;
1089         LIST_HEAD(aborts);
1090         LIST_HEAD(nvme_aborts);
1091         LIST_HEAD(nvmet_aborts);
1092         struct lpfc_sglq *sglq_entry = NULL;
1093         int cnt, idx;
1094
1095
1096         lpfc_sli_hbqbuf_free_all(phba);
1097         lpfc_hba_clean_txcmplq(phba);
1098
1099         /* At this point in time the HBA is either reset or DOA. Either
1100          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1101          * on the lpfc_els_sgl_list so that it can either be freed if the
1102          * driver is unloading or reposted if the driver is restarting
1103          * the port.
1104          */
1105
1106         /* sgl_list_lock required because worker thread uses this
1107          * list.
1108          */
1109         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
1110         list_for_each_entry(sglq_entry,
1111                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1112                 sglq_entry->state = SGL_FREED;
1113
1114         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1115                         &phba->sli4_hba.lpfc_els_sgl_list);
1116
1117
1118         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
1119
1120         /* abts_xxxx_buf_list_lock required because worker thread uses this
1121          * list.
1122          */
1123         spin_lock_irq(&phba->hbalock);
1124         cnt = 0;
1125         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1126                 qp = &phba->sli4_hba.hdwq[idx];
1127
1128                 spin_lock(&qp->abts_io_buf_list_lock);
1129                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1130                                  &aborts);
1131
1132                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1133                         psb->pCmd = NULL;
1134                         psb->status = IOSTAT_SUCCESS;
1135                         cnt++;
1136                 }
1137                 spin_lock(&qp->io_buf_list_put_lock);
1138                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1139                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1140                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1141                 qp->abts_scsi_io_bufs = 0;
1142                 qp->abts_nvme_io_bufs = 0;
1143                 spin_unlock(&qp->io_buf_list_put_lock);
1144                 spin_unlock(&qp->abts_io_buf_list_lock);
1145         }
1146         spin_unlock_irq(&phba->hbalock);
1147
1148         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1149                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1150                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1151                                  &nvmet_aborts);
1152                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1153                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1154                         ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
1155                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1156                 }
1157         }
1158
1159         lpfc_sli4_free_sp_events(phba);
1160         return cnt;
1161 }
1162
1163 /**
1164  * lpfc_hba_down_post - Wrapper func for hba down post routine
1165  * @phba: pointer to lpfc HBA data structure.
1166  *
1167  * This routine wraps the actual SLI3 or SLI4 routine for performing
1168  * uninitialization after the HBA is reset when bring down the SLI Layer.
1169  *
1170  * Return codes
1171  *   0 - success.
1172  *   Any other value - error.
1173  **/
1174 int
1175 lpfc_hba_down_post(struct lpfc_hba *phba)
1176 {
1177         return (*phba->lpfc_hba_down_post)(phba);
1178 }
1179
1180 /**
1181  * lpfc_hb_timeout - The HBA-timer timeout handler
1182  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1183  *
1184  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1185  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1186  * work-port-events bitmap and the worker thread is notified. This timeout
1187  * event will be used by the worker thread to invoke the actual timeout
1188  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1189  * be performed in the timeout handler and the HBA timeout event bit shall
1190  * be cleared by the worker thread after it has taken the event bitmap out.
1191  **/
1192 static void
1193 lpfc_hb_timeout(struct timer_list *t)
1194 {
1195         struct lpfc_hba *phba;
1196         uint32_t tmo_posted;
1197         unsigned long iflag;
1198
1199         phba = from_timer(phba, t, hb_tmofunc);
1200
1201         /* Check for heart beat timeout conditions */
1202         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1203         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1204         if (!tmo_posted)
1205                 phba->pport->work_port_events |= WORKER_HB_TMO;
1206         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1207
1208         /* Tell the worker thread there is work to do */
1209         if (!tmo_posted)
1210                 lpfc_worker_wake_up(phba);
1211         return;
1212 }
1213
1214 /**
1215  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1216  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1217  *
1218  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1219  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1220  * work-port-events bitmap and the worker thread is notified. This timeout
1221  * event will be used by the worker thread to invoke the actual timeout
1222  * handler routine, lpfc_rrq_handler. Any periodical operations will
1223  * be performed in the timeout handler and the RRQ timeout event bit shall
1224  * be cleared by the worker thread after it has taken the event bitmap out.
1225  **/
1226 static void
1227 lpfc_rrq_timeout(struct timer_list *t)
1228 {
1229         struct lpfc_hba *phba;
1230
1231         phba = from_timer(phba, t, rrq_tmr);
1232         if (test_bit(FC_UNLOADING, &phba->pport->load_flag)) {
1233                 clear_bit(HBA_RRQ_ACTIVE, &phba->hba_flag);
1234                 return;
1235         }
1236
1237         set_bit(HBA_RRQ_ACTIVE, &phba->hba_flag);
1238         lpfc_worker_wake_up(phba);
1239 }
1240
1241 /**
1242  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1243  * @phba: pointer to lpfc hba data structure.
1244  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1245  *
1246  * This is the callback function to the lpfc heart-beat mailbox command.
1247  * If configured, the lpfc driver issues the heart-beat mailbox command to
1248  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1249  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1250  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1251  * heart-beat outstanding state. Once the mailbox command comes back and
1252  * no error conditions detected, the heart-beat mailbox command timer is
1253  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1254  * state is cleared for the next heart-beat. If the timer expired with the
1255  * heart-beat outstanding state set, the driver will put the HBA offline.
1256  **/
1257 static void
1258 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1259 {
1260         clear_bit(HBA_HBEAT_INP, &phba->hba_flag);
1261         clear_bit(HBA_HBEAT_TMO, &phba->hba_flag);
1262
1263         /* Check and reset heart-beat timer if necessary */
1264         mempool_free(pmboxq, phba->mbox_mem_pool);
1265         if (!test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag) &&
1266             !(phba->link_state == LPFC_HBA_ERROR) &&
1267             !test_bit(FC_UNLOADING, &phba->pport->load_flag))
1268                 mod_timer(&phba->hb_tmofunc,
1269                           jiffies +
1270                           secs_to_jiffies(LPFC_HB_MBOX_INTERVAL));
1271         return;
1272 }
1273
1274 /*
1275  * lpfc_idle_stat_delay_work - idle_stat tracking
1276  *
1277  * This routine tracks per-eq idle_stat and determines polling decisions.
1278  *
1279  * Return codes:
1280  *   None
1281  **/
1282 static void
1283 lpfc_idle_stat_delay_work(struct work_struct *work)
1284 {
1285         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1286                                              struct lpfc_hba,
1287                                              idle_stat_delay_work);
1288         struct lpfc_queue *eq;
1289         struct lpfc_sli4_hdw_queue *hdwq;
1290         struct lpfc_idle_stat *idle_stat;
1291         u32 i, idle_percent;
1292         u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
1293
1294         if (test_bit(FC_UNLOADING, &phba->pport->load_flag))
1295                 return;
1296
1297         if (phba->link_state == LPFC_HBA_ERROR ||
1298             test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag) ||
1299             phba->cmf_active_mode != LPFC_CFG_OFF)
1300                 goto requeue;
1301
1302         for_each_present_cpu(i) {
1303                 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
1304                 eq = hdwq->hba_eq;
1305
1306                 /* Skip if we've already handled this eq's primary CPU */
1307                 if (eq->chann != i)
1308                         continue;
1309
1310                 idle_stat = &phba->sli4_hba.idle_stat[i];
1311
1312                 /* get_cpu_idle_time returns values as running counters. Thus,
1313                  * to know the amount for this period, the prior counter values
1314                  * need to be subtracted from the current counter values.
1315                  * From there, the idle time stat can be calculated as a
1316                  * percentage of 100 - the sum of the other consumption times.
1317                  */
1318                 wall_idle = get_cpu_idle_time(i, &wall, 1);
1319                 diff_idle = wall_idle - idle_stat->prev_idle;
1320                 diff_wall = wall - idle_stat->prev_wall;
1321
1322                 if (diff_wall <= diff_idle)
1323                         busy_time = 0;
1324                 else
1325                         busy_time = diff_wall - diff_idle;
1326
1327                 idle_percent = div64_u64(100 * busy_time, diff_wall);
1328                 idle_percent = 100 - idle_percent;
1329
1330                 if (idle_percent < 15)
1331                         eq->poll_mode = LPFC_QUEUE_WORK;
1332                 else
1333                         eq->poll_mode = LPFC_THREADED_IRQ;
1334
1335                 idle_stat->prev_idle = wall_idle;
1336                 idle_stat->prev_wall = wall;
1337         }
1338
1339 requeue:
1340         schedule_delayed_work(&phba->idle_stat_delay_work,
1341                               msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
1342 }
1343
1344 static void
1345 lpfc_hb_eq_delay_work(struct work_struct *work)
1346 {
1347         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1348                                              struct lpfc_hba, eq_delay_work);
1349         struct lpfc_eq_intr_info *eqi, *eqi_new;
1350         struct lpfc_queue *eq, *eq_next;
1351         unsigned char *ena_delay = NULL;
1352         uint32_t usdelay;
1353         int i;
1354
1355         if (!phba->cfg_auto_imax ||
1356             test_bit(FC_UNLOADING, &phba->pport->load_flag))
1357                 return;
1358
1359         if (phba->link_state == LPFC_HBA_ERROR ||
1360             test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag))
1361                 goto requeue;
1362
1363         ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1364                             GFP_KERNEL);
1365         if (!ena_delay)
1366                 goto requeue;
1367
1368         for (i = 0; i < phba->cfg_irq_chann; i++) {
1369                 /* Get the EQ corresponding to the IRQ vector */
1370                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1371                 if (!eq)
1372                         continue;
1373                 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1374                         eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1375                         ena_delay[eq->last_cpu] = 1;
1376                 }
1377         }
1378
1379         for_each_present_cpu(i) {
1380                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1381                 if (ena_delay[i]) {
1382                         usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1383                         if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1384                                 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1385                 } else {
1386                         usdelay = 0;
1387                 }
1388
1389                 eqi->icnt = 0;
1390
1391                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1392                         if (unlikely(eq->last_cpu != i)) {
1393                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1394                                                       eq->last_cpu);
1395                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1396                                 continue;
1397                         }
1398                         if (usdelay != eq->q_mode)
1399                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1400                                                          usdelay);
1401                 }
1402         }
1403
1404         kfree(ena_delay);
1405
1406 requeue:
1407         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1408                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1409 }
1410
1411 /**
1412  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1413  * @phba: pointer to lpfc hba data structure.
1414  *
1415  * For each heartbeat, this routine does some heuristic methods to adjust
1416  * XRI distribution. The goal is to fully utilize free XRIs.
1417  **/
1418 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1419 {
1420         u32 i;
1421         u32 hwq_count;
1422
1423         hwq_count = phba->cfg_hdw_queue;
1424         for (i = 0; i < hwq_count; i++) {
1425                 /* Adjust XRIs in private pool */
1426                 lpfc_adjust_pvt_pool_count(phba, i);
1427
1428                 /* Adjust high watermark */
1429                 lpfc_adjust_high_watermark(phba, i);
1430
1431 #ifdef LPFC_MXP_STAT
1432                 /* Snapshot pbl, pvt and busy count */
1433                 lpfc_snapshot_mxp(phba, i);
1434 #endif
1435         }
1436 }
1437
1438 /**
1439  * lpfc_issue_hb_mbox - Issues heart-beat mailbox command
1440  * @phba: pointer to lpfc hba data structure.
1441  *
1442  * If a HB mbox is not already in progrees, this routine will allocate
1443  * a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command,
1444  * and issue it. The HBA_HBEAT_INP flag means the command is in progress.
1445  **/
1446 int
1447 lpfc_issue_hb_mbox(struct lpfc_hba *phba)
1448 {
1449         LPFC_MBOXQ_t *pmboxq;
1450         int retval;
1451
1452         /* Is a Heartbeat mbox already in progress */
1453         if (test_bit(HBA_HBEAT_INP, &phba->hba_flag))
1454                 return 0;
1455
1456         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1457         if (!pmboxq)
1458                 return -ENOMEM;
1459
1460         lpfc_heart_beat(phba, pmboxq);
1461         pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1462         pmboxq->vport = phba->pport;
1463         retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1464
1465         if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1466                 mempool_free(pmboxq, phba->mbox_mem_pool);
1467                 return -ENXIO;
1468         }
1469         set_bit(HBA_HBEAT_INP, &phba->hba_flag);
1470
1471         return 0;
1472 }
1473
1474 /**
1475  * lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command
1476  * @phba: pointer to lpfc hba data structure.
1477  *
1478  * The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO
1479  * flag is set, it will force a MBX_HEARTBEAT mbox command, regardless
1480  * of the value of lpfc_enable_hba_heartbeat.
1481  * If lpfc_enable_hba_heartbeat is set, the timeout routine will always
1482  * try to issue a MBX_HEARTBEAT mbox command.
1483  **/
1484 void
1485 lpfc_issue_hb_tmo(struct lpfc_hba *phba)
1486 {
1487         if (phba->cfg_enable_hba_heartbeat)
1488                 return;
1489         set_bit(HBA_HBEAT_TMO, &phba->hba_flag);
1490 }
1491
1492 /**
1493  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1494  * @phba: pointer to lpfc hba data structure.
1495  *
1496  * This is the actual HBA-timer timeout handler to be invoked by the worker
1497  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1498  * handler performs any periodic operations needed for the device. If such
1499  * periodic event has already been attended to either in the interrupt handler
1500  * or by processing slow-ring or fast-ring events within the HBA-timer
1501  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1502  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1503  * is configured and there is no heart-beat mailbox command outstanding, a
1504  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1505  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1506  * to offline.
1507  **/
1508 void
1509 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1510 {
1511         struct lpfc_vport **vports;
1512         struct lpfc_dmabuf *buf_ptr;
1513         int retval = 0;
1514         int i, tmo;
1515         struct lpfc_sli *psli = &phba->sli;
1516         LIST_HEAD(completions);
1517
1518         if (phba->cfg_xri_rebalancing) {
1519                 /* Multi-XRI pools handler */
1520                 lpfc_hb_mxp_handler(phba);
1521         }
1522
1523         vports = lpfc_create_vport_work_array(phba);
1524         if (vports != NULL)
1525                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1526                         lpfc_rcv_seq_check_edtov(vports[i]);
1527                         lpfc_fdmi_change_check(vports[i]);
1528                 }
1529         lpfc_destroy_vport_work_array(phba, vports);
1530
1531         if (phba->link_state == LPFC_HBA_ERROR ||
1532             test_bit(FC_UNLOADING, &phba->pport->load_flag) ||
1533             test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag))
1534                 return;
1535
1536         if (phba->elsbuf_cnt &&
1537                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1538                 spin_lock_irq(&phba->hbalock);
1539                 list_splice_init(&phba->elsbuf, &completions);
1540                 phba->elsbuf_cnt = 0;
1541                 phba->elsbuf_prev_cnt = 0;
1542                 spin_unlock_irq(&phba->hbalock);
1543
1544                 while (!list_empty(&completions)) {
1545                         list_remove_head(&completions, buf_ptr,
1546                                 struct lpfc_dmabuf, list);
1547                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1548                         kfree(buf_ptr);
1549                 }
1550         }
1551         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1552
1553         /* If there is no heart beat outstanding, issue a heartbeat command */
1554         if (phba->cfg_enable_hba_heartbeat) {
1555                 /* If IOs are completing, no need to issue a MBX_HEARTBEAT */
1556                 spin_lock_irq(&phba->pport->work_port_lock);
1557                 if (time_after(phba->last_completion_time +
1558                                 secs_to_jiffies(LPFC_HB_MBOX_INTERVAL),
1559                                 jiffies)) {
1560                         spin_unlock_irq(&phba->pport->work_port_lock);
1561                         if (test_bit(HBA_HBEAT_INP, &phba->hba_flag))
1562                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1563                         else
1564                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1565                         goto out;
1566                 }
1567                 spin_unlock_irq(&phba->pport->work_port_lock);
1568
1569                 /* Check if a MBX_HEARTBEAT is already in progress */
1570                 if (test_bit(HBA_HBEAT_INP, &phba->hba_flag)) {
1571                         /*
1572                          * If heart beat timeout called with HBA_HBEAT_INP set
1573                          * we need to give the hb mailbox cmd a chance to
1574                          * complete or TMO.
1575                          */
1576                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1577                                 "0459 Adapter heartbeat still outstanding: "
1578                                 "last compl time was %d ms.\n",
1579                                 jiffies_to_msecs(jiffies
1580                                          - phba->last_completion_time));
1581                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1582                 } else {
1583                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1584                                 (list_empty(&psli->mboxq))) {
1585
1586                                 retval = lpfc_issue_hb_mbox(phba);
1587                                 if (retval) {
1588                                         tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1589                                         goto out;
1590                                 }
1591                                 phba->skipped_hb = 0;
1592                         } else if (time_before_eq(phba->last_completion_time,
1593                                         phba->skipped_hb)) {
1594                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1595                                         "2857 Last completion time not "
1596                                         " updated in %d ms\n",
1597                                         jiffies_to_msecs(jiffies
1598                                                  - phba->last_completion_time));
1599                         } else
1600                                 phba->skipped_hb = jiffies;
1601
1602                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1603                         goto out;
1604                 }
1605         } else {
1606                 /* Check to see if we want to force a MBX_HEARTBEAT */
1607                 if (test_bit(HBA_HBEAT_TMO, &phba->hba_flag)) {
1608                         retval = lpfc_issue_hb_mbox(phba);
1609                         if (retval)
1610                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1611                         else
1612                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1613                         goto out;
1614                 }
1615                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1616         }
1617 out:
1618         mod_timer(&phba->hb_tmofunc, jiffies + msecs_to_jiffies(tmo));
1619 }
1620
1621 /**
1622  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1623  * @phba: pointer to lpfc hba data structure.
1624  *
1625  * This routine is called to bring the HBA offline when HBA hardware error
1626  * other than Port Error 6 has been detected.
1627  **/
1628 static void
1629 lpfc_offline_eratt(struct lpfc_hba *phba)
1630 {
1631         struct lpfc_sli   *psli = &phba->sli;
1632
1633         spin_lock_irq(&phba->hbalock);
1634         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1635         spin_unlock_irq(&phba->hbalock);
1636         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1637
1638         lpfc_offline(phba);
1639         lpfc_reset_barrier(phba);
1640         spin_lock_irq(&phba->hbalock);
1641         lpfc_sli_brdreset(phba);
1642         spin_unlock_irq(&phba->hbalock);
1643         lpfc_hba_down_post(phba);
1644         lpfc_sli_brdready(phba, HS_MBRDY);
1645         lpfc_unblock_mgmt_io(phba);
1646         phba->link_state = LPFC_HBA_ERROR;
1647         return;
1648 }
1649
1650 /**
1651  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1652  * @phba: pointer to lpfc hba data structure.
1653  *
1654  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1655  * other than Port Error 6 has been detected.
1656  **/
1657 void
1658 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1659 {
1660         spin_lock_irq(&phba->hbalock);
1661         if (phba->link_state == LPFC_HBA_ERROR &&
1662                 test_bit(HBA_PCI_ERR, &phba->bit_flags)) {
1663                 spin_unlock_irq(&phba->hbalock);
1664                 return;
1665         }
1666         phba->link_state = LPFC_HBA_ERROR;
1667         spin_unlock_irq(&phba->hbalock);
1668
1669         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1670         lpfc_sli_flush_io_rings(phba);
1671         lpfc_offline(phba);
1672         lpfc_hba_down_post(phba);
1673         lpfc_unblock_mgmt_io(phba);
1674 }
1675
1676 /**
1677  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1678  * @phba: pointer to lpfc hba data structure.
1679  *
1680  * This routine is invoked to handle the deferred HBA hardware error
1681  * conditions. This type of error is indicated by HBA by setting ER1
1682  * and another ER bit in the host status register. The driver will
1683  * wait until the ER1 bit clears before handling the error condition.
1684  **/
1685 static void
1686 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1687 {
1688         uint32_t old_host_status = phba->work_hs;
1689         struct lpfc_sli *psli = &phba->sli;
1690
1691         /* If the pci channel is offline, ignore possible errors,
1692          * since we cannot communicate with the pci card anyway.
1693          */
1694         if (pci_channel_offline(phba->pcidev)) {
1695                 clear_bit(DEFER_ERATT, &phba->hba_flag);
1696                 return;
1697         }
1698
1699         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1700                         "0479 Deferred Adapter Hardware Error "
1701                         "Data: x%x x%x x%x\n",
1702                         phba->work_hs, phba->work_status[0],
1703                         phba->work_status[1]);
1704
1705         spin_lock_irq(&phba->hbalock);
1706         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1707         spin_unlock_irq(&phba->hbalock);
1708
1709
1710         /*
1711          * Firmware stops when it triggred erratt. That could cause the I/Os
1712          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1713          * SCSI layer retry it after re-establishing link.
1714          */
1715         lpfc_sli_abort_fcp_rings(phba);
1716
1717         /*
1718          * There was a firmware error. Take the hba offline and then
1719          * attempt to restart it.
1720          */
1721         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1722         lpfc_offline(phba);
1723
1724         /* Wait for the ER1 bit to clear.*/
1725         while (phba->work_hs & HS_FFER1) {
1726                 msleep(100);
1727                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1728                         phba->work_hs = UNPLUG_ERR ;
1729                         break;
1730                 }
1731                 /* If driver is unloading let the worker thread continue */
1732                 if (test_bit(FC_UNLOADING, &phba->pport->load_flag)) {
1733                         phba->work_hs = 0;
1734                         break;
1735                 }
1736         }
1737
1738         /*
1739          * This is to ptrotect against a race condition in which
1740          * first write to the host attention register clear the
1741          * host status register.
1742          */
1743         if (!phba->work_hs && !test_bit(FC_UNLOADING, &phba->pport->load_flag))
1744                 phba->work_hs = old_host_status & ~HS_FFER1;
1745
1746         clear_bit(DEFER_ERATT, &phba->hba_flag);
1747         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1748         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1749 }
1750
1751 static void
1752 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1753 {
1754         struct lpfc_board_event_header board_event;
1755         struct Scsi_Host *shost;
1756
1757         board_event.event_type = FC_REG_BOARD_EVENT;
1758         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1759         shost = lpfc_shost_from_vport(phba->pport);
1760         fc_host_post_vendor_event(shost, fc_get_event_number(),
1761                                   sizeof(board_event),
1762                                   (char *) &board_event,
1763                                   LPFC_NL_VENDOR_ID);
1764 }
1765
1766 /**
1767  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1768  * @phba: pointer to lpfc hba data structure.
1769  *
1770  * This routine is invoked to handle the following HBA hardware error
1771  * conditions:
1772  * 1 - HBA error attention interrupt
1773  * 2 - DMA ring index out of range
1774  * 3 - Mailbox command came back as unknown
1775  **/
1776 static void
1777 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1778 {
1779         struct lpfc_vport *vport = phba->pport;
1780         struct lpfc_sli   *psli = &phba->sli;
1781         uint32_t event_data;
1782         unsigned long temperature;
1783         struct temp_event temp_event_data;
1784         struct Scsi_Host  *shost;
1785
1786         /* If the pci channel is offline, ignore possible errors,
1787          * since we cannot communicate with the pci card anyway.
1788          */
1789         if (pci_channel_offline(phba->pcidev)) {
1790                 clear_bit(DEFER_ERATT, &phba->hba_flag);
1791                 return;
1792         }
1793
1794         /* If resets are disabled then leave the HBA alone and return */
1795         if (!phba->cfg_enable_hba_reset)
1796                 return;
1797
1798         /* Send an internal error event to mgmt application */
1799         lpfc_board_errevt_to_mgmt(phba);
1800
1801         if (test_bit(DEFER_ERATT, &phba->hba_flag))
1802                 lpfc_handle_deferred_eratt(phba);
1803
1804         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1805                 if (phba->work_hs & HS_FFER6)
1806                         /* Re-establishing Link */
1807                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1808                                         "1301 Re-establishing Link "
1809                                         "Data: x%x x%x x%x\n",
1810                                         phba->work_hs, phba->work_status[0],
1811                                         phba->work_status[1]);
1812                 if (phba->work_hs & HS_FFER8)
1813                         /* Device Zeroization */
1814                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1815                                         "2861 Host Authentication device "
1816                                         "zeroization Data:x%x x%x x%x\n",
1817                                         phba->work_hs, phba->work_status[0],
1818                                         phba->work_status[1]);
1819
1820                 spin_lock_irq(&phba->hbalock);
1821                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1822                 spin_unlock_irq(&phba->hbalock);
1823
1824                 /*
1825                 * Firmware stops when it triggled erratt with HS_FFER6.
1826                 * That could cause the I/Os dropped by the firmware.
1827                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1828                 * retry it after re-establishing link.
1829                 */
1830                 lpfc_sli_abort_fcp_rings(phba);
1831
1832                 /*
1833                  * There was a firmware error.  Take the hba offline and then
1834                  * attempt to restart it.
1835                  */
1836                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1837                 lpfc_offline(phba);
1838                 lpfc_sli_brdrestart(phba);
1839                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1840                         lpfc_unblock_mgmt_io(phba);
1841                         return;
1842                 }
1843                 lpfc_unblock_mgmt_io(phba);
1844         } else if (phba->work_hs & HS_CRIT_TEMP) {
1845                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1846                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1847                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1848                 temp_event_data.data = (uint32_t)temperature;
1849
1850                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1851                                 "0406 Adapter maximum temperature exceeded "
1852                                 "(%ld), taking this port offline "
1853                                 "Data: x%x x%x x%x\n",
1854                                 temperature, phba->work_hs,
1855                                 phba->work_status[0], phba->work_status[1]);
1856
1857                 shost = lpfc_shost_from_vport(phba->pport);
1858                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1859                                           sizeof(temp_event_data),
1860                                           (char *) &temp_event_data,
1861                                           SCSI_NL_VID_TYPE_PCI
1862                                           | PCI_VENDOR_ID_EMULEX);
1863
1864                 spin_lock_irq(&phba->hbalock);
1865                 phba->over_temp_state = HBA_OVER_TEMP;
1866                 spin_unlock_irq(&phba->hbalock);
1867                 lpfc_offline_eratt(phba);
1868
1869         } else {
1870                 /* The if clause above forces this code path when the status
1871                  * failure is a value other than FFER6. Do not call the offline
1872                  * twice. This is the adapter hardware error path.
1873                  */
1874                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1875                                 "0457 Adapter Hardware Error "
1876                                 "Data: x%x x%x x%x\n",
1877                                 phba->work_hs,
1878                                 phba->work_status[0], phba->work_status[1]);
1879
1880                 event_data = FC_REG_DUMP_EVENT;
1881                 shost = lpfc_shost_from_vport(vport);
1882                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1883                                 sizeof(event_data), (char *) &event_data,
1884                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1885
1886                 lpfc_offline_eratt(phba);
1887         }
1888         return;
1889 }
1890
1891 /**
1892  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1893  * @phba: pointer to lpfc hba data structure.
1894  * @mbx_action: flag for mailbox shutdown action.
1895  * @en_rn_msg: send reset/port recovery message.
1896  * This routine is invoked to perform an SLI4 port PCI function reset in
1897  * response to port status register polling attention. It waits for port
1898  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1899  * During this process, interrupt vectors are freed and later requested
1900  * for handling possible port resource change.
1901  **/
1902 static int
1903 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1904                             bool en_rn_msg)
1905 {
1906         int rc;
1907         uint32_t intr_mode;
1908         LPFC_MBOXQ_t *mboxq;
1909
1910         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1911             LPFC_SLI_INTF_IF_TYPE_2) {
1912                 /*
1913                  * On error status condition, driver need to wait for port
1914                  * ready before performing reset.
1915                  */
1916                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1917                 if (rc)
1918                         return rc;
1919         }
1920
1921         /* need reset: attempt for port recovery */
1922         if (en_rn_msg)
1923                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1924                                 "2887 Reset Needed: Attempting Port "
1925                                 "Recovery...\n");
1926
1927         /* If we are no wait, the HBA has been reset and is not
1928          * functional, thus we should clear
1929          * (LPFC_SLI_ACTIVE | LPFC_SLI_MBOX_ACTIVE) flags.
1930          */
1931         if (mbx_action == LPFC_MBX_NO_WAIT) {
1932                 spin_lock_irq(&phba->hbalock);
1933                 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
1934                 if (phba->sli.mbox_active) {
1935                         mboxq = phba->sli.mbox_active;
1936                         mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
1937                         __lpfc_mbox_cmpl_put(phba, mboxq);
1938                         phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
1939                         phba->sli.mbox_active = NULL;
1940                 }
1941                 spin_unlock_irq(&phba->hbalock);
1942         }
1943
1944         lpfc_offline_prep(phba, mbx_action);
1945         lpfc_sli_flush_io_rings(phba);
1946         lpfc_nvmels_flush_cmd(phba);
1947         lpfc_offline(phba);
1948         /* release interrupt for possible resource change */
1949         lpfc_sli4_disable_intr(phba);
1950         rc = lpfc_sli_brdrestart(phba);
1951         if (rc) {
1952                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1953                                 "6309 Failed to restart board\n");
1954                 return rc;
1955         }
1956         /* request and enable interrupt */
1957         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1958         if (intr_mode == LPFC_INTR_ERROR) {
1959                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1960                                 "3175 Failed to enable interrupt\n");
1961                 return -EIO;
1962         }
1963         phba->intr_mode = intr_mode;
1964         rc = lpfc_online(phba);
1965         if (rc == 0)
1966                 lpfc_unblock_mgmt_io(phba);
1967
1968         return rc;
1969 }
1970
1971 /**
1972  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1973  * @phba: pointer to lpfc hba data structure.
1974  *
1975  * This routine is invoked to handle the SLI4 HBA hardware error attention
1976  * conditions.
1977  **/
1978 static void
1979 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1980 {
1981         struct lpfc_vport *vport = phba->pport;
1982         uint32_t event_data;
1983         struct Scsi_Host *shost;
1984         uint32_t if_type;
1985         struct lpfc_register portstat_reg = {0};
1986         uint32_t reg_err1, reg_err2;
1987         uint32_t uerrlo_reg, uemasklo_reg;
1988         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1989         bool en_rn_msg = true;
1990         struct temp_event temp_event_data;
1991         struct lpfc_register portsmphr_reg;
1992         int rc, i;
1993
1994         /* If the pci channel is offline, ignore possible errors, since
1995          * we cannot communicate with the pci card anyway.
1996          */
1997         if (pci_channel_offline(phba->pcidev)) {
1998                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1999                                 "3166 pci channel is offline\n");
2000                 lpfc_sli_flush_io_rings(phba);
2001                 return;
2002         }
2003
2004         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
2005         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
2006         switch (if_type) {
2007         case LPFC_SLI_INTF_IF_TYPE_0:
2008                 pci_rd_rc1 = lpfc_readl(
2009                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
2010                                 &uerrlo_reg);
2011                 pci_rd_rc2 = lpfc_readl(
2012                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
2013                                 &uemasklo_reg);
2014                 /* consider PCI bus read error as pci_channel_offline */
2015                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
2016                         return;
2017                 if (!test_bit(HBA_RECOVERABLE_UE, &phba->hba_flag)) {
2018                         lpfc_sli4_offline_eratt(phba);
2019                         return;
2020                 }
2021                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2022                                 "7623 Checking UE recoverable");
2023
2024                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
2025                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
2026                                        &portsmphr_reg.word0))
2027                                 continue;
2028
2029                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
2030                                                    &portsmphr_reg);
2031                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
2032                             LPFC_PORT_SEM_UE_RECOVERABLE)
2033                                 break;
2034                         /*Sleep for 1Sec, before checking SEMAPHORE */
2035                         msleep(1000);
2036                 }
2037
2038                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2039                                 "4827 smphr_port_status x%x : Waited %dSec",
2040                                 smphr_port_status, i);
2041
2042                 /* Recoverable UE, reset the HBA device */
2043                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
2044                     LPFC_PORT_SEM_UE_RECOVERABLE) {
2045                         for (i = 0; i < 20; i++) {
2046                                 msleep(1000);
2047                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
2048                                     &portsmphr_reg.word0) &&
2049                                     (LPFC_POST_STAGE_PORT_READY ==
2050                                      bf_get(lpfc_port_smphr_port_status,
2051                                      &portsmphr_reg))) {
2052                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
2053                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
2054                                         if (rc == 0)
2055                                                 return;
2056                                         lpfc_printf_log(phba, KERN_ERR,
2057                                                 LOG_TRACE_EVENT,
2058                                                 "4215 Failed to recover UE");
2059                                         break;
2060                                 }
2061                         }
2062                 }
2063                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2064                                 "7624 Firmware not ready: Failing UE recovery,"
2065                                 " waited %dSec", i);
2066                 phba->link_state = LPFC_HBA_ERROR;
2067                 break;
2068
2069         case LPFC_SLI_INTF_IF_TYPE_2:
2070         case LPFC_SLI_INTF_IF_TYPE_6:
2071                 pci_rd_rc1 = lpfc_readl(
2072                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
2073                                 &portstat_reg.word0);
2074                 /* consider PCI bus read error as pci_channel_offline */
2075                 if (pci_rd_rc1 == -EIO) {
2076                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2077                                 "3151 PCI bus read access failure: x%x\n",
2078                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2079                         lpfc_sli4_offline_eratt(phba);
2080                         return;
2081                 }
2082                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
2083                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2084                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
2085                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2086                                         "2889 Port Overtemperature event, "
2087                                         "taking port offline Data: x%x x%x\n",
2088                                         reg_err1, reg_err2);
2089
2090                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
2091                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
2092                         temp_event_data.event_code = LPFC_CRIT_TEMP;
2093                         temp_event_data.data = 0xFFFFFFFF;
2094
2095                         shost = lpfc_shost_from_vport(phba->pport);
2096                         fc_host_post_vendor_event(shost, fc_get_event_number(),
2097                                                   sizeof(temp_event_data),
2098                                                   (char *)&temp_event_data,
2099                                                   SCSI_NL_VID_TYPE_PCI
2100                                                   | PCI_VENDOR_ID_EMULEX);
2101
2102                         spin_lock_irq(&phba->hbalock);
2103                         phba->over_temp_state = HBA_OVER_TEMP;
2104                         spin_unlock_irq(&phba->hbalock);
2105                         lpfc_sli4_offline_eratt(phba);
2106                         return;
2107                 }
2108                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2109                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2110                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2111                                         "3143 Port Down: Firmware Update "
2112                                         "Detected\n");
2113                         en_rn_msg = false;
2114                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2115                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2116                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2117                                         "3144 Port Down: Debug Dump\n");
2118                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2119                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
2120                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2121                                         "3145 Port Down: Provisioning\n");
2122
2123                 /* If resets are disabled then leave the HBA alone and return */
2124                 if (!phba->cfg_enable_hba_reset)
2125                         return;
2126
2127                 /* Check port status register for function reset */
2128                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
2129                                 en_rn_msg);
2130                 if (rc == 0) {
2131                         /* don't report event on forced debug dump */
2132                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2133                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2134                                 return;
2135                         else
2136                                 break;
2137                 }
2138                 /* fall through for not able to recover */
2139                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2140                                 "3152 Unrecoverable error\n");
2141                 lpfc_sli4_offline_eratt(phba);
2142                 break;
2143         case LPFC_SLI_INTF_IF_TYPE_1:
2144         default:
2145                 break;
2146         }
2147         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2148                         "3123 Report dump event to upper layer\n");
2149         /* Send an internal error event to mgmt application */
2150         lpfc_board_errevt_to_mgmt(phba);
2151
2152         event_data = FC_REG_DUMP_EVENT;
2153         shost = lpfc_shost_from_vport(vport);
2154         fc_host_post_vendor_event(shost, fc_get_event_number(),
2155                                   sizeof(event_data), (char *) &event_data,
2156                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2157 }
2158
2159 /**
2160  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2161  * @phba: pointer to lpfc HBA data structure.
2162  *
2163  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2164  * routine from the API jump table function pointer from the lpfc_hba struct.
2165  *
2166  * Return codes
2167  *   0 - success.
2168  *   Any other value - error.
2169  **/
2170 void
2171 lpfc_handle_eratt(struct lpfc_hba *phba)
2172 {
2173         (*phba->lpfc_handle_eratt)(phba);
2174 }
2175
2176 /**
2177  * lpfc_handle_latt - The HBA link event handler
2178  * @phba: pointer to lpfc hba data structure.
2179  *
2180  * This routine is invoked from the worker thread to handle a HBA host
2181  * attention link event. SLI3 only.
2182  **/
2183 void
2184 lpfc_handle_latt(struct lpfc_hba *phba)
2185 {
2186         struct lpfc_vport *vport = phba->pport;
2187         struct lpfc_sli   *psli = &phba->sli;
2188         LPFC_MBOXQ_t *pmb;
2189         volatile uint32_t control;
2190         int rc = 0;
2191
2192         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2193         if (!pmb) {
2194                 rc = 1;
2195                 goto lpfc_handle_latt_err_exit;
2196         }
2197
2198         rc = lpfc_mbox_rsrc_prep(phba, pmb);
2199         if (rc) {
2200                 rc = 2;
2201                 mempool_free(pmb, phba->mbox_mem_pool);
2202                 goto lpfc_handle_latt_err_exit;
2203         }
2204
2205         /* Cleanup any outstanding ELS commands */
2206         lpfc_els_flush_all_cmd(phba);
2207         psli->slistat.link_event++;
2208         lpfc_read_topology(phba, pmb, pmb->ctx_buf);
2209         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2210         pmb->vport = vport;
2211         /* Block ELS IOCBs until we have processed this mbox command */
2212         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2213         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2214         if (rc == MBX_NOT_FINISHED) {
2215                 rc = 4;
2216                 goto lpfc_handle_latt_free_mbuf;
2217         }
2218
2219         /* Clear Link Attention in HA REG */
2220         spin_lock_irq(&phba->hbalock);
2221         writel(HA_LATT, phba->HAregaddr);
2222         readl(phba->HAregaddr); /* flush */
2223         spin_unlock_irq(&phba->hbalock);
2224
2225         return;
2226
2227 lpfc_handle_latt_free_mbuf:
2228         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2229         lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
2230 lpfc_handle_latt_err_exit:
2231         /* Enable Link attention interrupts */
2232         spin_lock_irq(&phba->hbalock);
2233         psli->sli_flag |= LPFC_PROCESS_LA;
2234         control = readl(phba->HCregaddr);
2235         control |= HC_LAINT_ENA;
2236         writel(control, phba->HCregaddr);
2237         readl(phba->HCregaddr); /* flush */
2238
2239         /* Clear Link Attention in HA REG */
2240         writel(HA_LATT, phba->HAregaddr);
2241         readl(phba->HAregaddr); /* flush */
2242         spin_unlock_irq(&phba->hbalock);
2243         lpfc_linkdown(phba);
2244         phba->link_state = LPFC_HBA_ERROR;
2245
2246         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2247                         "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2248
2249         return;
2250 }
2251
2252 static void
2253 lpfc_fill_vpd(struct lpfc_hba *phba, uint8_t *vpd, int length, int *pindex)
2254 {
2255         int i, j;
2256
2257         while (length > 0) {
2258                 /* Look for Serial Number */
2259                 if ((vpd[*pindex] == 'S') && (vpd[*pindex + 1] == 'N')) {
2260                         *pindex += 2;
2261                         i = vpd[*pindex];
2262                         *pindex += 1;
2263                         j = 0;
2264                         length -= (3+i);
2265                         while (i--) {
2266                                 phba->SerialNumber[j++] = vpd[(*pindex)++];
2267                                 if (j == 31)
2268                                         break;
2269                         }
2270                         phba->SerialNumber[j] = 0;
2271                         continue;
2272                 } else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '1')) {
2273                         phba->vpd_flag |= VPD_MODEL_DESC;
2274                         *pindex += 2;
2275                         i = vpd[*pindex];
2276                         *pindex += 1;
2277                         j = 0;
2278                         length -= (3+i);
2279                         while (i--) {
2280                                 phba->ModelDesc[j++] = vpd[(*pindex)++];
2281                                 if (j == 255)
2282                                         break;
2283                         }
2284                         phba->ModelDesc[j] = 0;
2285                         continue;
2286                 } else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '2')) {
2287                         phba->vpd_flag |= VPD_MODEL_NAME;
2288                         *pindex += 2;
2289                         i = vpd[*pindex];
2290                         *pindex += 1;
2291                         j = 0;
2292                         length -= (3+i);
2293                         while (i--) {
2294                                 phba->ModelName[j++] = vpd[(*pindex)++];
2295                                 if (j == 79)
2296                                         break;
2297                         }
2298                         phba->ModelName[j] = 0;
2299                         continue;
2300                 } else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '3')) {
2301                         phba->vpd_flag |= VPD_PROGRAM_TYPE;
2302                         *pindex += 2;
2303                         i = vpd[*pindex];
2304                         *pindex += 1;
2305                         j = 0;
2306                         length -= (3+i);
2307                         while (i--) {
2308                                 phba->ProgramType[j++] = vpd[(*pindex)++];
2309                                 if (j == 255)
2310                                         break;
2311                         }
2312                         phba->ProgramType[j] = 0;
2313                         continue;
2314                 } else if ((vpd[*pindex] == 'V') && (vpd[*pindex + 1] == '4')) {
2315                         phba->vpd_flag |= VPD_PORT;
2316                         *pindex += 2;
2317                         i = vpd[*pindex];
2318                         *pindex += 1;
2319                         j = 0;
2320                         length -= (3 + i);
2321                         while (i--) {
2322                                 if ((phba->sli_rev == LPFC_SLI_REV4) &&
2323                                     (phba->sli4_hba.pport_name_sta ==
2324                                      LPFC_SLI4_PPNAME_GET)) {
2325                                         j++;
2326                                         (*pindex)++;
2327                                 } else
2328                                         phba->Port[j++] = vpd[(*pindex)++];
2329                                 if (j == 19)
2330                                         break;
2331                         }
2332                         if ((phba->sli_rev != LPFC_SLI_REV4) ||
2333                             (phba->sli4_hba.pport_name_sta ==
2334                              LPFC_SLI4_PPNAME_NON))
2335                                 phba->Port[j] = 0;
2336                         continue;
2337                 } else {
2338                         *pindex += 2;
2339                         i = vpd[*pindex];
2340                         *pindex += 1;
2341                         *pindex += i;
2342                         length -= (3 + i);
2343                 }
2344         }
2345 }
2346
2347 /**
2348  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2349  * @phba: pointer to lpfc hba data structure.
2350  * @vpd: pointer to the vital product data.
2351  * @len: length of the vital product data in bytes.
2352  *
2353  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2354  * an array of characters. In this routine, the ModelName, ProgramType, and
2355  * ModelDesc, etc. fields of the phba data structure will be populated.
2356  *
2357  * Return codes
2358  *   0 - pointer to the VPD passed in is NULL
2359  *   1 - success
2360  **/
2361 int
2362 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2363 {
2364         uint8_t lenlo, lenhi;
2365         int Length;
2366         int i;
2367         int finished = 0;
2368         int index = 0;
2369
2370         if (!vpd)
2371                 return 0;
2372
2373         /* Vital Product */
2374         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2375                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2376                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2377                         (uint32_t) vpd[3]);
2378         while (!finished && (index < (len - 4))) {
2379                 switch (vpd[index]) {
2380                 case 0x82:
2381                 case 0x91:
2382                         index += 1;
2383                         lenlo = vpd[index];
2384                         index += 1;
2385                         lenhi = vpd[index];
2386                         index += 1;
2387                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2388                         index += i;
2389                         break;
2390                 case 0x90:
2391                         index += 1;
2392                         lenlo = vpd[index];
2393                         index += 1;
2394                         lenhi = vpd[index];
2395                         index += 1;
2396                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2397                         if (Length > len - index)
2398                                 Length = len - index;
2399
2400                         lpfc_fill_vpd(phba, vpd, Length, &index);
2401                         finished = 0;
2402                         break;
2403                 case 0x78:
2404                         finished = 1;
2405                         break;
2406                 default:
2407                         index ++;
2408                         break;
2409                 }
2410         }
2411
2412         return(1);
2413 }
2414
2415 /**
2416  * lpfc_get_atto_model_desc - Retrieve ATTO HBA device model name and description
2417  * @phba: pointer to lpfc hba data structure.
2418  * @mdp: pointer to the data structure to hold the derived model name.
2419  * @descp: pointer to the data structure to hold the derived description.
2420  *
2421  * This routine retrieves HBA's description based on its registered PCI device
2422  * ID. The @descp passed into this function points to an array of 256 chars. It
2423  * shall be returned with the model name, maximum speed, and the host bus type.
2424  * The @mdp passed into this function points to an array of 80 chars. When the
2425  * function returns, the @mdp will be filled with the model name.
2426  **/
2427 static void
2428 lpfc_get_atto_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2429 {
2430         uint16_t sub_dev_id = phba->pcidev->subsystem_device;
2431         char *model = "<Unknown>";
2432         int tbolt = 0;
2433
2434         switch (sub_dev_id) {
2435         case PCI_DEVICE_ID_CLRY_161E:
2436                 model = "161E";
2437                 break;
2438         case PCI_DEVICE_ID_CLRY_162E:
2439                 model = "162E";
2440                 break;
2441         case PCI_DEVICE_ID_CLRY_164E:
2442                 model = "164E";
2443                 break;
2444         case PCI_DEVICE_ID_CLRY_161P:
2445                 model = "161P";
2446                 break;
2447         case PCI_DEVICE_ID_CLRY_162P:
2448                 model = "162P";
2449                 break;
2450         case PCI_DEVICE_ID_CLRY_164P:
2451                 model = "164P";
2452                 break;
2453         case PCI_DEVICE_ID_CLRY_321E:
2454                 model = "321E";
2455                 break;
2456         case PCI_DEVICE_ID_CLRY_322E:
2457                 model = "322E";
2458                 break;
2459         case PCI_DEVICE_ID_CLRY_324E:
2460                 model = "324E";
2461                 break;
2462         case PCI_DEVICE_ID_CLRY_321P:
2463                 model = "321P";
2464                 break;
2465         case PCI_DEVICE_ID_CLRY_322P:
2466                 model = "322P";
2467                 break;
2468         case PCI_DEVICE_ID_CLRY_324P:
2469                 model = "324P";
2470                 break;
2471         case PCI_DEVICE_ID_TLFC_2XX2:
2472                 model = "2XX2";
2473                 tbolt = 1;
2474                 break;
2475         case PCI_DEVICE_ID_TLFC_3162:
2476                 model = "3162";
2477                 tbolt = 1;
2478                 break;
2479         case PCI_DEVICE_ID_TLFC_3322:
2480                 model = "3322";
2481                 tbolt = 1;
2482                 break;
2483         default:
2484                 model = "Unknown";
2485                 break;
2486         }
2487
2488         if (mdp && mdp[0] == '\0')
2489                 snprintf(mdp, 79, "%s", model);
2490
2491         if (descp && descp[0] == '\0')
2492                 snprintf(descp, 255,
2493                          "ATTO %s%s, Fibre Channel Adapter Initiator, Port %s",
2494                          (tbolt) ? "ThunderLink FC " : "Celerity FC-",
2495                          model,
2496                          phba->Port);
2497 }
2498
2499 /**
2500  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2501  * @phba: pointer to lpfc hba data structure.
2502  * @mdp: pointer to the data structure to hold the derived model name.
2503  * @descp: pointer to the data structure to hold the derived description.
2504  *
2505  * This routine retrieves HBA's description based on its registered PCI device
2506  * ID. The @descp passed into this function points to an array of 256 chars. It
2507  * shall be returned with the model name, maximum speed, and the host bus type.
2508  * The @mdp passed into this function points to an array of 80 chars. When the
2509  * function returns, the @mdp will be filled with the model name.
2510  **/
2511 static void
2512 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2513 {
2514         lpfc_vpd_t *vp;
2515         uint16_t dev_id = phba->pcidev->device;
2516         int max_speed;
2517         int GE = 0;
2518         int oneConnect = 0; /* default is not a oneConnect */
2519         struct {
2520                 char *name;
2521                 char *bus;
2522                 char *function;
2523         } m = {"<Unknown>", "", ""};
2524
2525         if (mdp && mdp[0] != '\0'
2526                 && descp && descp[0] != '\0')
2527                 return;
2528
2529         if (phba->pcidev->vendor == PCI_VENDOR_ID_ATTO) {
2530                 lpfc_get_atto_model_desc(phba, mdp, descp);
2531                 return;
2532         }
2533
2534         if (phba->lmt & LMT_64Gb)
2535                 max_speed = 64;
2536         else if (phba->lmt & LMT_32Gb)
2537                 max_speed = 32;
2538         else if (phba->lmt & LMT_16Gb)
2539                 max_speed = 16;
2540         else if (phba->lmt & LMT_10Gb)
2541                 max_speed = 10;
2542         else if (phba->lmt & LMT_8Gb)
2543                 max_speed = 8;
2544         else if (phba->lmt & LMT_4Gb)
2545                 max_speed = 4;
2546         else if (phba->lmt & LMT_2Gb)
2547                 max_speed = 2;
2548         else if (phba->lmt & LMT_1Gb)
2549                 max_speed = 1;
2550         else
2551                 max_speed = 0;
2552
2553         vp = &phba->vpd;
2554
2555         switch (dev_id) {
2556         case PCI_DEVICE_ID_FIREFLY:
2557                 m = (typeof(m)){"LP6000", "PCI",
2558                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2559                 break;
2560         case PCI_DEVICE_ID_SUPERFLY:
2561                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2562                         m = (typeof(m)){"LP7000", "PCI", ""};
2563                 else
2564                         m = (typeof(m)){"LP7000E", "PCI", ""};
2565                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2566                 break;
2567         case PCI_DEVICE_ID_DRAGONFLY:
2568                 m = (typeof(m)){"LP8000", "PCI",
2569                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2570                 break;
2571         case PCI_DEVICE_ID_CENTAUR:
2572                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2573                         m = (typeof(m)){"LP9002", "PCI", ""};
2574                 else
2575                         m = (typeof(m)){"LP9000", "PCI", ""};
2576                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2577                 break;
2578         case PCI_DEVICE_ID_RFLY:
2579                 m = (typeof(m)){"LP952", "PCI",
2580                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2581                 break;
2582         case PCI_DEVICE_ID_PEGASUS:
2583                 m = (typeof(m)){"LP9802", "PCI-X",
2584                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2585                 break;
2586         case PCI_DEVICE_ID_THOR:
2587                 m = (typeof(m)){"LP10000", "PCI-X",
2588                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2589                 break;
2590         case PCI_DEVICE_ID_VIPER:
2591                 m = (typeof(m)){"LPX1000",  "PCI-X",
2592                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2593                 break;
2594         case PCI_DEVICE_ID_PFLY:
2595                 m = (typeof(m)){"LP982", "PCI-X",
2596                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2597                 break;
2598         case PCI_DEVICE_ID_TFLY:
2599                 m = (typeof(m)){"LP1050", "PCI-X",
2600                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2601                 break;
2602         case PCI_DEVICE_ID_HELIOS:
2603                 m = (typeof(m)){"LP11000", "PCI-X2",
2604                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2605                 break;
2606         case PCI_DEVICE_ID_HELIOS_SCSP:
2607                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2608                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2609                 break;
2610         case PCI_DEVICE_ID_HELIOS_DCSP:
2611                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2612                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2613                 break;
2614         case PCI_DEVICE_ID_NEPTUNE:
2615                 m = (typeof(m)){"LPe1000", "PCIe",
2616                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2617                 break;
2618         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2619                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2620                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2621                 break;
2622         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2623                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2624                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2625                 break;
2626         case PCI_DEVICE_ID_BMID:
2627                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2628                 break;
2629         case PCI_DEVICE_ID_BSMB:
2630                 m = (typeof(m)){"LP111", "PCI-X2",
2631                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2632                 break;
2633         case PCI_DEVICE_ID_ZEPHYR:
2634                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2635                 break;
2636         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2637                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2638                 break;
2639         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2640                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2641                 GE = 1;
2642                 break;
2643         case PCI_DEVICE_ID_ZMID:
2644                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2645                 break;
2646         case PCI_DEVICE_ID_ZSMB:
2647                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2648                 break;
2649         case PCI_DEVICE_ID_LP101:
2650                 m = (typeof(m)){"LP101", "PCI-X",
2651                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2652                 break;
2653         case PCI_DEVICE_ID_LP10000S:
2654                 m = (typeof(m)){"LP10000-S", "PCI",
2655                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2656                 break;
2657         case PCI_DEVICE_ID_LP11000S:
2658                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2659                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2660                 break;
2661         case PCI_DEVICE_ID_LPE11000S:
2662                 m = (typeof(m)){"LPe11000-S", "PCIe",
2663                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2664                 break;
2665         case PCI_DEVICE_ID_SAT:
2666                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2667                 break;
2668         case PCI_DEVICE_ID_SAT_MID:
2669                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2670                 break;
2671         case PCI_DEVICE_ID_SAT_SMB:
2672                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2673                 break;
2674         case PCI_DEVICE_ID_SAT_DCSP:
2675                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2676                 break;
2677         case PCI_DEVICE_ID_SAT_SCSP:
2678                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2679                 break;
2680         case PCI_DEVICE_ID_SAT_S:
2681                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2682                 break;
2683         case PCI_DEVICE_ID_PROTEUS_VF:
2684                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2685                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2686                 break;
2687         case PCI_DEVICE_ID_PROTEUS_PF:
2688                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2689                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2690                 break;
2691         case PCI_DEVICE_ID_PROTEUS_S:
2692                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2693                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2694                 break;
2695         case PCI_DEVICE_ID_TIGERSHARK:
2696                 oneConnect = 1;
2697                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2698                 break;
2699         case PCI_DEVICE_ID_TOMCAT:
2700                 oneConnect = 1;
2701                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2702                 break;
2703         case PCI_DEVICE_ID_FALCON:
2704                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2705                                 "EmulexSecure Fibre"};
2706                 break;
2707         case PCI_DEVICE_ID_BALIUS:
2708                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2709                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2710                 break;
2711         case PCI_DEVICE_ID_LANCER_FC:
2712                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2713                 break;
2714         case PCI_DEVICE_ID_LANCER_FC_VF:
2715                 m = (typeof(m)){"LPe16000", "PCIe",
2716                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2717                 break;
2718         case PCI_DEVICE_ID_LANCER_FCOE:
2719                 oneConnect = 1;
2720                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2721                 break;
2722         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2723                 oneConnect = 1;
2724                 m = (typeof(m)){"OCe15100", "PCIe",
2725                                 "Obsolete, Unsupported FCoE"};
2726                 break;
2727         case PCI_DEVICE_ID_LANCER_G6_FC:
2728                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2729                 break;
2730         case PCI_DEVICE_ID_LANCER_G7_FC:
2731                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2732                 break;
2733         case PCI_DEVICE_ID_LANCER_G7P_FC:
2734                 m = (typeof(m)){"LPe38000", "PCIe", "Fibre Channel Adapter"};
2735                 break;
2736         case PCI_DEVICE_ID_SKYHAWK:
2737         case PCI_DEVICE_ID_SKYHAWK_VF:
2738                 oneConnect = 1;
2739                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2740                 break;
2741         default:
2742                 m = (typeof(m)){"Unknown", "", ""};
2743                 break;
2744         }
2745
2746         if (mdp && mdp[0] == '\0')
2747                 snprintf(mdp, 79,"%s", m.name);
2748         /*
2749          * oneConnect hba requires special processing, they are all initiators
2750          * and we put the port number on the end
2751          */
2752         if (descp && descp[0] == '\0') {
2753                 if (oneConnect)
2754                         snprintf(descp, 255,
2755                                 "Emulex OneConnect %s, %s Initiator %s",
2756                                 m.name, m.function,
2757                                 phba->Port);
2758                 else if (max_speed == 0)
2759                         snprintf(descp, 255,
2760                                 "Emulex %s %s %s",
2761                                 m.name, m.bus, m.function);
2762                 else
2763                         snprintf(descp, 255,
2764                                 "Emulex %s %d%s %s %s",
2765                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2766                                 m.bus, m.function);
2767         }
2768 }
2769
2770 /**
2771  * lpfc_sli3_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2772  * @phba: pointer to lpfc hba data structure.
2773  * @pring: pointer to a IOCB ring.
2774  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2775  *
2776  * This routine posts a given number of IOCBs with the associated DMA buffer
2777  * descriptors specified by the cnt argument to the given IOCB ring.
2778  *
2779  * Return codes
2780  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2781  **/
2782 int
2783 lpfc_sli3_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2784 {
2785         IOCB_t *icmd;
2786         struct lpfc_iocbq *iocb;
2787         struct lpfc_dmabuf *mp1, *mp2;
2788
2789         cnt += pring->missbufcnt;
2790
2791         /* While there are buffers to post */
2792         while (cnt > 0) {
2793                 /* Allocate buffer for  command iocb */
2794                 iocb = lpfc_sli_get_iocbq(phba);
2795                 if (iocb == NULL) {
2796                         pring->missbufcnt = cnt;
2797                         return cnt;
2798                 }
2799                 icmd = &iocb->iocb;
2800
2801                 /* 2 buffers can be posted per command */
2802                 /* Allocate buffer to post */
2803                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2804                 if (mp1)
2805                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2806                 if (!mp1 || !mp1->virt) {
2807                         kfree(mp1);
2808                         lpfc_sli_release_iocbq(phba, iocb);
2809                         pring->missbufcnt = cnt;
2810                         return cnt;
2811                 }
2812
2813                 INIT_LIST_HEAD(&mp1->list);
2814                 /* Allocate buffer to post */
2815                 if (cnt > 1) {
2816                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2817                         if (mp2)
2818                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2819                                                             &mp2->phys);
2820                         if (!mp2 || !mp2->virt) {
2821                                 kfree(mp2);
2822                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2823                                 kfree(mp1);
2824                                 lpfc_sli_release_iocbq(phba, iocb);
2825                                 pring->missbufcnt = cnt;
2826                                 return cnt;
2827                         }
2828
2829                         INIT_LIST_HEAD(&mp2->list);
2830                 } else {
2831                         mp2 = NULL;
2832                 }
2833
2834                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2835                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2836                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2837                 icmd->ulpBdeCount = 1;
2838                 cnt--;
2839                 if (mp2) {
2840                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2841                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2842                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2843                         cnt--;
2844                         icmd->ulpBdeCount = 2;
2845                 }
2846
2847                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2848                 icmd->ulpLe = 1;
2849
2850                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2851                     IOCB_ERROR) {
2852                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2853                         kfree(mp1);
2854                         cnt++;
2855                         if (mp2) {
2856                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2857                                 kfree(mp2);
2858                                 cnt++;
2859                         }
2860                         lpfc_sli_release_iocbq(phba, iocb);
2861                         pring->missbufcnt = cnt;
2862                         return cnt;
2863                 }
2864                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2865                 if (mp2)
2866                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2867         }
2868         pring->missbufcnt = 0;
2869         return 0;
2870 }
2871
2872 /**
2873  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2874  * @phba: pointer to lpfc hba data structure.
2875  *
2876  * This routine posts initial receive IOCB buffers to the ELS ring. The
2877  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2878  * set to 64 IOCBs. SLI3 only.
2879  *
2880  * Return codes
2881  *   0 - success (currently always success)
2882  **/
2883 static int
2884 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2885 {
2886         struct lpfc_sli *psli = &phba->sli;
2887
2888         /* Ring 0, ELS / CT buffers */
2889         lpfc_sli3_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2890         /* Ring 2 - FCP no buffers needed */
2891
2892         return 0;
2893 }
2894
2895 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2896
2897 /**
2898  * lpfc_sha_init - Set up initial array of hash table entries
2899  * @HashResultPointer: pointer to an array as hash table.
2900  *
2901  * This routine sets up the initial values to the array of hash table entries
2902  * for the LC HBAs.
2903  **/
2904 static void
2905 lpfc_sha_init(uint32_t * HashResultPointer)
2906 {
2907         HashResultPointer[0] = 0x67452301;
2908         HashResultPointer[1] = 0xEFCDAB89;
2909         HashResultPointer[2] = 0x98BADCFE;
2910         HashResultPointer[3] = 0x10325476;
2911         HashResultPointer[4] = 0xC3D2E1F0;
2912 }
2913
2914 /**
2915  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2916  * @HashResultPointer: pointer to an initial/result hash table.
2917  * @HashWorkingPointer: pointer to an working hash table.
2918  *
2919  * This routine iterates an initial hash table pointed by @HashResultPointer
2920  * with the values from the working hash table pointeed by @HashWorkingPointer.
2921  * The results are putting back to the initial hash table, returned through
2922  * the @HashResultPointer as the result hash table.
2923  **/
2924 static void
2925 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2926 {
2927         int t;
2928         uint32_t TEMP;
2929         uint32_t A, B, C, D, E;
2930         t = 16;
2931         do {
2932                 HashWorkingPointer[t] =
2933                     S(1,
2934                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2935                                                                      8] ^
2936                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2937         } while (++t <= 79);
2938         t = 0;
2939         A = HashResultPointer[0];
2940         B = HashResultPointer[1];
2941         C = HashResultPointer[2];
2942         D = HashResultPointer[3];
2943         E = HashResultPointer[4];
2944
2945         do {
2946                 if (t < 20) {
2947                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2948                 } else if (t < 40) {
2949                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2950                 } else if (t < 60) {
2951                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2952                 } else {
2953                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2954                 }
2955                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2956                 E = D;
2957                 D = C;
2958                 C = S(30, B);
2959                 B = A;
2960                 A = TEMP;
2961         } while (++t <= 79);
2962
2963         HashResultPointer[0] += A;
2964         HashResultPointer[1] += B;
2965         HashResultPointer[2] += C;
2966         HashResultPointer[3] += D;
2967         HashResultPointer[4] += E;
2968
2969 }
2970
2971 /**
2972  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2973  * @RandomChallenge: pointer to the entry of host challenge random number array.
2974  * @HashWorking: pointer to the entry of the working hash array.
2975  *
2976  * This routine calculates the working hash array referred by @HashWorking
2977  * from the challenge random numbers associated with the host, referred by
2978  * @RandomChallenge. The result is put into the entry of the working hash
2979  * array and returned by reference through @HashWorking.
2980  **/
2981 static void
2982 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2983 {
2984         *HashWorking = (*RandomChallenge ^ *HashWorking);
2985 }
2986
2987 /**
2988  * lpfc_hba_init - Perform special handling for LC HBA initialization
2989  * @phba: pointer to lpfc hba data structure.
2990  * @hbainit: pointer to an array of unsigned 32-bit integers.
2991  *
2992  * This routine performs the special handling for LC HBA initialization.
2993  **/
2994 void
2995 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2996 {
2997         int t;
2998         uint32_t *HashWorking;
2999         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
3000
3001         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
3002         if (!HashWorking)
3003                 return;
3004
3005         HashWorking[0] = HashWorking[78] = *pwwnn++;
3006         HashWorking[1] = HashWorking[79] = *pwwnn;
3007
3008         for (t = 0; t < 7; t++)
3009                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
3010
3011         lpfc_sha_init(hbainit);
3012         lpfc_sha_iterate(hbainit, HashWorking);
3013         kfree(HashWorking);
3014 }
3015
3016 /**
3017  * lpfc_cleanup - Performs vport cleanups before deleting a vport
3018  * @vport: pointer to a virtual N_Port data structure.
3019  *
3020  * This routine performs the necessary cleanups before deleting the @vport.
3021  * It invokes the discovery state machine to perform necessary state
3022  * transitions and to release the ndlps associated with the @vport. Note,
3023  * the physical port is treated as @vport 0.
3024  **/
3025 void
3026 lpfc_cleanup(struct lpfc_vport *vport)
3027 {
3028         struct lpfc_hba   *phba = vport->phba;
3029         struct lpfc_nodelist *ndlp, *next_ndlp;
3030         int i = 0;
3031
3032         if (phba->link_state > LPFC_LINK_DOWN)
3033                 lpfc_port_link_failure(vport);
3034
3035         /* Clean up VMID resources */
3036         if (lpfc_is_vmid_enabled(phba))
3037                 lpfc_vmid_vport_cleanup(vport);
3038
3039         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
3040                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
3041                     ndlp->nlp_DID == Fabric_DID) {
3042                         /* Just free up ndlp with Fabric_DID for vports */
3043                         lpfc_nlp_put(ndlp);
3044                         continue;
3045                 }
3046
3047                 if (ndlp->nlp_DID == Fabric_Cntl_DID &&
3048                     ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
3049                         lpfc_nlp_put(ndlp);
3050                         continue;
3051                 }
3052
3053                 /* Fabric Ports not in UNMAPPED state are cleaned up in the
3054                  * DEVICE_RM event.
3055                  */
3056                 if (ndlp->nlp_type & NLP_FABRIC &&
3057                     ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
3058                         lpfc_disc_state_machine(vport, ndlp, NULL,
3059                                         NLP_EVT_DEVICE_RECOVERY);
3060
3061                 if (!(ndlp->fc4_xpt_flags & (NVME_XPT_REGD|SCSI_XPT_REGD)))
3062                         lpfc_disc_state_machine(vport, ndlp, NULL,
3063                                         NLP_EVT_DEVICE_RM);
3064         }
3065
3066         /* This is a special case flush to return all
3067          * IOs before entering this loop. There are
3068          * two points in the code where a flush is
3069          * avoided if the FC_UNLOADING flag is set.
3070          * one is in the multipool destroy,
3071          * (this prevents a crash) and the other is
3072          * in the nvme abort handler, ( also prevents
3073          * a crash). Both of these exceptions are
3074          * cases where the slot is still accessible.
3075          * The flush here is only when the pci slot
3076          * is offline.
3077          */
3078         if (test_bit(FC_UNLOADING, &vport->load_flag) &&
3079             pci_channel_offline(phba->pcidev))
3080                 lpfc_sli_flush_io_rings(vport->phba);
3081
3082         /* At this point, ALL ndlp's should be gone
3083          * because of the previous NLP_EVT_DEVICE_RM.
3084          * Lets wait for this to happen, if needed.
3085          */
3086         while (!list_empty(&vport->fc_nodes)) {
3087                 if (i++ > 3000) {
3088                         lpfc_printf_vlog(vport, KERN_ERR,
3089                                          LOG_TRACE_EVENT,
3090                                 "0233 Nodelist not empty\n");
3091                         list_for_each_entry_safe(ndlp, next_ndlp,
3092                                                 &vport->fc_nodes, nlp_listp) {
3093                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
3094                                                  LOG_DISCOVERY,
3095                                                  "0282 did:x%x ndlp:x%px "
3096                                                  "refcnt:%d xflags x%x "
3097                                                  "nflag x%lx\n",
3098                                                  ndlp->nlp_DID, (void *)ndlp,
3099                                                  kref_read(&ndlp->kref),
3100                                                  ndlp->fc4_xpt_flags,
3101                                                  ndlp->nlp_flag);
3102                         }
3103                         break;
3104                 }
3105
3106                 /* Wait for any activity on ndlps to settle */
3107                 msleep(10);
3108         }
3109         lpfc_cleanup_vports_rrqs(vport, NULL);
3110 }
3111
3112 /**
3113  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
3114  * @vport: pointer to a virtual N_Port data structure.
3115  *
3116  * This routine stops all the timers associated with a @vport. This function
3117  * is invoked before disabling or deleting a @vport. Note that the physical
3118  * port is treated as @vport 0.
3119  **/
3120 void
3121 lpfc_stop_vport_timers(struct lpfc_vport *vport)
3122 {
3123         del_timer_sync(&vport->els_tmofunc);
3124         del_timer_sync(&vport->delayed_disc_tmo);
3125         lpfc_can_disctmo(vport);
3126         return;
3127 }
3128
3129 /**
3130  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3131  * @phba: pointer to lpfc hba data structure.
3132  *
3133  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
3134  * caller of this routine should already hold the host lock.
3135  **/
3136 void
3137 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3138 {
3139         /* Clear pending FCF rediscovery wait flag */
3140         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3141
3142         /* Now, try to stop the timer */
3143         del_timer(&phba->fcf.redisc_wait);
3144 }
3145
3146 /**
3147  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3148  * @phba: pointer to lpfc hba data structure.
3149  *
3150  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
3151  * checks whether the FCF rediscovery wait timer is pending with the host
3152  * lock held before proceeding with disabling the timer and clearing the
3153  * wait timer pendig flag.
3154  **/
3155 void
3156 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3157 {
3158         spin_lock_irq(&phba->hbalock);
3159         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3160                 /* FCF rediscovery timer already fired or stopped */
3161                 spin_unlock_irq(&phba->hbalock);
3162                 return;
3163         }
3164         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3165         /* Clear failover in progress flags */
3166         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
3167         spin_unlock_irq(&phba->hbalock);
3168 }
3169
3170 /**
3171  * lpfc_cmf_stop - Stop CMF processing
3172  * @phba: pointer to lpfc hba data structure.
3173  *
3174  * This is called when the link goes down or if CMF mode is turned OFF.
3175  * It is also called when going offline or unloaded just before the
3176  * congestion info buffer is unregistered.
3177  **/
3178 void
3179 lpfc_cmf_stop(struct lpfc_hba *phba)
3180 {
3181         int cpu;
3182         struct lpfc_cgn_stat *cgs;
3183
3184         /* We only do something if CMF is enabled */
3185         if (!phba->sli4_hba.pc_sli4_params.cmf)
3186                 return;
3187
3188         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3189                         "6221 Stop CMF / Cancel Timer\n");
3190
3191         /* Cancel the CMF timer */
3192         hrtimer_cancel(&phba->cmf_stats_timer);
3193         hrtimer_cancel(&phba->cmf_timer);
3194
3195         /* Zero CMF counters */
3196         atomic_set(&phba->cmf_busy, 0);
3197         for_each_present_cpu(cpu) {
3198                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3199                 atomic64_set(&cgs->total_bytes, 0);
3200                 atomic64_set(&cgs->rcv_bytes, 0);
3201                 atomic_set(&cgs->rx_io_cnt, 0);
3202                 atomic64_set(&cgs->rx_latency, 0);
3203         }
3204         atomic_set(&phba->cmf_bw_wait, 0);
3205
3206         /* Resume any blocked IO - Queue unblock on workqueue */
3207         queue_work(phba->wq, &phba->unblock_request_work);
3208 }
3209
3210 static inline uint64_t
3211 lpfc_get_max_line_rate(struct lpfc_hba *phba)
3212 {
3213         uint64_t rate = lpfc_sli_port_speed_get(phba);
3214
3215         return ((((unsigned long)rate) * 1024 * 1024) / 10);
3216 }
3217
3218 void
3219 lpfc_cmf_signal_init(struct lpfc_hba *phba)
3220 {
3221         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3222                         "6223 Signal CMF init\n");
3223
3224         /* Use the new fc_linkspeed to recalculate */
3225         phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
3226         phba->cmf_max_line_rate = lpfc_get_max_line_rate(phba);
3227         phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
3228                                             phba->cmf_interval_rate, 1000);
3229         phba->cmf_max_bytes_per_interval = phba->cmf_link_byte_count;
3230
3231         /* This is a signal to firmware to sync up CMF BW with link speed */
3232         lpfc_issue_cmf_sync_wqe(phba, 0, 0);
3233 }
3234
3235 /**
3236  * lpfc_cmf_start - Start CMF processing
3237  * @phba: pointer to lpfc hba data structure.
3238  *
3239  * This is called when the link comes up or if CMF mode is turned OFF
3240  * to Monitor or Managed.
3241  **/
3242 void
3243 lpfc_cmf_start(struct lpfc_hba *phba)
3244 {
3245         struct lpfc_cgn_stat *cgs;
3246         int cpu;
3247
3248         /* We only do something if CMF is enabled */
3249         if (!phba->sli4_hba.pc_sli4_params.cmf ||
3250             phba->cmf_active_mode == LPFC_CFG_OFF)
3251                 return;
3252
3253         /* Reinitialize congestion buffer info */
3254         lpfc_init_congestion_buf(phba);
3255
3256         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
3257         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
3258         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
3259         atomic_set(&phba->cgn_sync_warn_cnt, 0);
3260
3261         atomic_set(&phba->cmf_busy, 0);
3262         for_each_present_cpu(cpu) {
3263                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3264                 atomic64_set(&cgs->total_bytes, 0);
3265                 atomic64_set(&cgs->rcv_bytes, 0);
3266                 atomic_set(&cgs->rx_io_cnt, 0);
3267                 atomic64_set(&cgs->rx_latency, 0);
3268         }
3269         phba->cmf_latency.tv_sec = 0;
3270         phba->cmf_latency.tv_nsec = 0;
3271
3272         lpfc_cmf_signal_init(phba);
3273
3274         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3275                         "6222 Start CMF / Timer\n");
3276
3277         phba->cmf_timer_cnt = 0;
3278         hrtimer_start(&phba->cmf_timer,
3279                       ktime_set(0, LPFC_CMF_INTERVAL * NSEC_PER_MSEC),
3280                       HRTIMER_MODE_REL);
3281         hrtimer_start(&phba->cmf_stats_timer,
3282                       ktime_set(0, LPFC_SEC_MIN * NSEC_PER_SEC),
3283                       HRTIMER_MODE_REL);
3284         /* Setup for latency check in IO cmpl routines */
3285         ktime_get_real_ts64(&phba->cmf_latency);
3286
3287         atomic_set(&phba->cmf_bw_wait, 0);
3288         atomic_set(&phba->cmf_stop_io, 0);
3289 }
3290
3291 /**
3292  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
3293  * @phba: pointer to lpfc hba data structure.
3294  *
3295  * This routine stops all the timers associated with a HBA. This function is
3296  * invoked before either putting a HBA offline or unloading the driver.
3297  **/
3298 void
3299 lpfc_stop_hba_timers(struct lpfc_hba *phba)
3300 {
3301         if (phba->pport)
3302                 lpfc_stop_vport_timers(phba->pport);
3303         cancel_delayed_work_sync(&phba->eq_delay_work);
3304         cancel_delayed_work_sync(&phba->idle_stat_delay_work);
3305         del_timer_sync(&phba->sli.mbox_tmo);
3306         del_timer_sync(&phba->fabric_block_timer);
3307         del_timer_sync(&phba->eratt_poll);
3308         del_timer_sync(&phba->hb_tmofunc);
3309         if (phba->sli_rev == LPFC_SLI_REV4) {
3310                 del_timer_sync(&phba->rrq_tmr);
3311                 clear_bit(HBA_RRQ_ACTIVE, &phba->hba_flag);
3312         }
3313         clear_bit(HBA_HBEAT_INP, &phba->hba_flag);
3314         clear_bit(HBA_HBEAT_TMO, &phba->hba_flag);
3315
3316         switch (phba->pci_dev_grp) {
3317         case LPFC_PCI_DEV_LP:
3318                 /* Stop any LightPulse device specific driver timers */
3319                 del_timer_sync(&phba->fcp_poll_timer);
3320                 break;
3321         case LPFC_PCI_DEV_OC:
3322                 /* Stop any OneConnect device specific driver timers */
3323                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3324                 break;
3325         default:
3326                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3327                                 "0297 Invalid device group (x%x)\n",
3328                                 phba->pci_dev_grp);
3329                 break;
3330         }
3331         return;
3332 }
3333
3334 /**
3335  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
3336  * @phba: pointer to lpfc hba data structure.
3337  * @mbx_action: flag for mailbox no wait action.
3338  *
3339  * This routine marks a HBA's management interface as blocked. Once the HBA's
3340  * management interface is marked as blocked, all the user space access to
3341  * the HBA, whether they are from sysfs interface or libdfc interface will
3342  * all be blocked. The HBA is set to block the management interface when the
3343  * driver prepares the HBA interface for online or offline.
3344  **/
3345 static void
3346 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
3347 {
3348         unsigned long iflag;
3349         uint8_t actcmd = MBX_HEARTBEAT;
3350         unsigned long timeout;
3351
3352         spin_lock_irqsave(&phba->hbalock, iflag);
3353         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
3354         spin_unlock_irqrestore(&phba->hbalock, iflag);
3355         if (mbx_action == LPFC_MBX_NO_WAIT)
3356                 return;
3357         timeout = secs_to_jiffies(LPFC_MBOX_TMO) + jiffies;
3358         spin_lock_irqsave(&phba->hbalock, iflag);
3359         if (phba->sli.mbox_active) {
3360                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3361                 /* Determine how long we might wait for the active mailbox
3362                  * command to be gracefully completed by firmware.
3363                  */
3364                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3365                                 phba->sli.mbox_active) * 1000) + jiffies;
3366         }
3367         spin_unlock_irqrestore(&phba->hbalock, iflag);
3368
3369         /* Wait for the outstnading mailbox command to complete */
3370         while (phba->sli.mbox_active) {
3371                 /* Check active mailbox complete status every 2ms */
3372                 msleep(2);
3373                 if (time_after(jiffies, timeout)) {
3374                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3375                                         "2813 Mgmt IO is Blocked %x "
3376                                         "- mbox cmd %x still active\n",
3377                                         phba->sli.sli_flag, actcmd);
3378                         break;
3379                 }
3380         }
3381 }
3382
3383 /**
3384  * lpfc_sli4_node_rpi_restore - Recover assigned RPIs for active nodes.
3385  * @phba: pointer to lpfc hba data structure.
3386  *
3387  * Allocate RPIs for all active remote nodes. This is needed whenever
3388  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3389  * is to fixup the temporary rpi assignments.
3390  **/
3391 void
3392 lpfc_sli4_node_rpi_restore(struct lpfc_hba *phba)
3393 {
3394         struct lpfc_nodelist  *ndlp, *next_ndlp;
3395         struct lpfc_vport **vports;
3396         int i, rpi;
3397
3398         if (phba->sli_rev != LPFC_SLI_REV4)
3399                 return;
3400
3401         vports = lpfc_create_vport_work_array(phba);
3402         if (!vports)
3403                 return;
3404
3405         for (i = 0; i <= phba->max_vports && vports[i]; i++) {
3406                 if (test_bit(FC_UNLOADING, &vports[i]->load_flag))
3407                         continue;
3408
3409                 list_for_each_entry_safe(ndlp, next_ndlp,
3410                                          &vports[i]->fc_nodes,
3411                                          nlp_listp) {
3412                         rpi = lpfc_sli4_alloc_rpi(phba);
3413                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3414                                 lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3415                                                  LOG_NODE | LOG_DISCOVERY,
3416                                                  "0099 RPI alloc error for "
3417                                                  "ndlp x%px DID:x%06x "
3418                                                  "flg:x%lx\n",
3419                                                  ndlp, ndlp->nlp_DID,
3420                                                  ndlp->nlp_flag);
3421                                 continue;
3422                         }
3423                         ndlp->nlp_rpi = rpi;
3424                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3425                                          LOG_NODE | LOG_DISCOVERY,
3426                                          "0009 Assign RPI x%x to ndlp x%px "
3427                                          "DID:x%06x flg:x%lx\n",
3428                                          ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3429                                          ndlp->nlp_flag);
3430                 }
3431         }
3432         lpfc_destroy_vport_work_array(phba, vports);
3433 }
3434
3435 /**
3436  * lpfc_create_expedite_pool - create expedite pool
3437  * @phba: pointer to lpfc hba data structure.
3438  *
3439  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3440  * to expedite pool. Mark them as expedite.
3441  **/
3442 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3443 {
3444         struct lpfc_sli4_hdw_queue *qp;
3445         struct lpfc_io_buf *lpfc_ncmd;
3446         struct lpfc_io_buf *lpfc_ncmd_next;
3447         struct lpfc_epd_pool *epd_pool;
3448         unsigned long iflag;
3449
3450         epd_pool = &phba->epd_pool;
3451         qp = &phba->sli4_hba.hdwq[0];
3452
3453         spin_lock_init(&epd_pool->lock);
3454         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3455         spin_lock(&epd_pool->lock);
3456         INIT_LIST_HEAD(&epd_pool->list);
3457         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3458                                  &qp->lpfc_io_buf_list_put, list) {
3459                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3460                 lpfc_ncmd->expedite = true;
3461                 qp->put_io_bufs--;
3462                 epd_pool->count++;
3463                 if (epd_pool->count >= XRI_BATCH)
3464                         break;
3465         }
3466         spin_unlock(&epd_pool->lock);
3467         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3468 }
3469
3470 /**
3471  * lpfc_destroy_expedite_pool - destroy expedite pool
3472  * @phba: pointer to lpfc hba data structure.
3473  *
3474  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3475  * of HWQ 0. Clear the mark.
3476  **/
3477 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3478 {
3479         struct lpfc_sli4_hdw_queue *qp;
3480         struct lpfc_io_buf *lpfc_ncmd;
3481         struct lpfc_io_buf *lpfc_ncmd_next;
3482         struct lpfc_epd_pool *epd_pool;
3483         unsigned long iflag;
3484
3485         epd_pool = &phba->epd_pool;
3486         qp = &phba->sli4_hba.hdwq[0];
3487
3488         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3489         spin_lock(&epd_pool->lock);
3490         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3491                                  &epd_pool->list, list) {
3492                 list_move_tail(&lpfc_ncmd->list,
3493                                &qp->lpfc_io_buf_list_put);
3494                 lpfc_ncmd->flags = false;
3495                 qp->put_io_bufs++;
3496                 epd_pool->count--;
3497         }
3498         spin_unlock(&epd_pool->lock);
3499         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3500 }
3501
3502 /**
3503  * lpfc_create_multixri_pools - create multi-XRI pools
3504  * @phba: pointer to lpfc hba data structure.
3505  *
3506  * This routine initialize public, private per HWQ. Then, move XRIs from
3507  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3508  * Initialized.
3509  **/
3510 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3511 {
3512         u32 i, j;
3513         u32 hwq_count;
3514         u32 count_per_hwq;
3515         struct lpfc_io_buf *lpfc_ncmd;
3516         struct lpfc_io_buf *lpfc_ncmd_next;
3517         unsigned long iflag;
3518         struct lpfc_sli4_hdw_queue *qp;
3519         struct lpfc_multixri_pool *multixri_pool;
3520         struct lpfc_pbl_pool *pbl_pool;
3521         struct lpfc_pvt_pool *pvt_pool;
3522
3523         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3524                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3525                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3526                         phba->sli4_hba.io_xri_cnt);
3527
3528         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3529                 lpfc_create_expedite_pool(phba);
3530
3531         hwq_count = phba->cfg_hdw_queue;
3532         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3533
3534         for (i = 0; i < hwq_count; i++) {
3535                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3536
3537                 if (!multixri_pool) {
3538                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3539                                         "1238 Failed to allocate memory for "
3540                                         "multixri_pool\n");
3541
3542                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3543                                 lpfc_destroy_expedite_pool(phba);
3544
3545                         j = 0;
3546                         while (j < i) {
3547                                 qp = &phba->sli4_hba.hdwq[j];
3548                                 kfree(qp->p_multixri_pool);
3549                                 j++;
3550                         }
3551                         phba->cfg_xri_rebalancing = 0;
3552                         return;
3553                 }
3554
3555                 qp = &phba->sli4_hba.hdwq[i];
3556                 qp->p_multixri_pool = multixri_pool;
3557
3558                 multixri_pool->xri_limit = count_per_hwq;
3559                 multixri_pool->rrb_next_hwqid = i;
3560
3561                 /* Deal with public free xri pool */
3562                 pbl_pool = &multixri_pool->pbl_pool;
3563                 spin_lock_init(&pbl_pool->lock);
3564                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3565                 spin_lock(&pbl_pool->lock);
3566                 INIT_LIST_HEAD(&pbl_pool->list);
3567                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3568                                          &qp->lpfc_io_buf_list_put, list) {
3569                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3570                         qp->put_io_bufs--;
3571                         pbl_pool->count++;
3572                 }
3573                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3574                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3575                                 pbl_pool->count, i);
3576                 spin_unlock(&pbl_pool->lock);
3577                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3578
3579                 /* Deal with private free xri pool */
3580                 pvt_pool = &multixri_pool->pvt_pool;
3581                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3582                 pvt_pool->low_watermark = XRI_BATCH;
3583                 spin_lock_init(&pvt_pool->lock);
3584                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3585                 INIT_LIST_HEAD(&pvt_pool->list);
3586                 pvt_pool->count = 0;
3587                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3588         }
3589 }
3590
3591 /**
3592  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3593  * @phba: pointer to lpfc hba data structure.
3594  *
3595  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3596  **/
3597 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3598 {
3599         u32 i;
3600         u32 hwq_count;
3601         struct lpfc_io_buf *lpfc_ncmd;
3602         struct lpfc_io_buf *lpfc_ncmd_next;
3603         unsigned long iflag;
3604         struct lpfc_sli4_hdw_queue *qp;
3605         struct lpfc_multixri_pool *multixri_pool;
3606         struct lpfc_pbl_pool *pbl_pool;
3607         struct lpfc_pvt_pool *pvt_pool;
3608
3609         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3610                 lpfc_destroy_expedite_pool(phba);
3611
3612         if (!test_bit(FC_UNLOADING, &phba->pport->load_flag))
3613                 lpfc_sli_flush_io_rings(phba);
3614
3615         hwq_count = phba->cfg_hdw_queue;
3616
3617         for (i = 0; i < hwq_count; i++) {
3618                 qp = &phba->sli4_hba.hdwq[i];
3619                 multixri_pool = qp->p_multixri_pool;
3620                 if (!multixri_pool)
3621                         continue;
3622
3623                 qp->p_multixri_pool = NULL;
3624
3625                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3626
3627                 /* Deal with public free xri pool */
3628                 pbl_pool = &multixri_pool->pbl_pool;
3629                 spin_lock(&pbl_pool->lock);
3630
3631                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3632                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3633                                 pbl_pool->count, i);
3634
3635                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3636                                          &pbl_pool->list, list) {
3637                         list_move_tail(&lpfc_ncmd->list,
3638                                        &qp->lpfc_io_buf_list_put);
3639                         qp->put_io_bufs++;
3640                         pbl_pool->count--;
3641                 }
3642
3643                 INIT_LIST_HEAD(&pbl_pool->list);
3644                 pbl_pool->count = 0;
3645
3646                 spin_unlock(&pbl_pool->lock);
3647
3648                 /* Deal with private free xri pool */
3649                 pvt_pool = &multixri_pool->pvt_pool;
3650                 spin_lock(&pvt_pool->lock);
3651
3652                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3653                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3654                                 pvt_pool->count, i);
3655
3656                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3657                                          &pvt_pool->list, list) {
3658                         list_move_tail(&lpfc_ncmd->list,
3659                                        &qp->lpfc_io_buf_list_put);
3660                         qp->put_io_bufs++;
3661                         pvt_pool->count--;
3662                 }
3663
3664                 INIT_LIST_HEAD(&pvt_pool->list);
3665                 pvt_pool->count = 0;
3666
3667                 spin_unlock(&pvt_pool->lock);
3668                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3669
3670                 kfree(multixri_pool);
3671         }
3672 }
3673
3674 /**
3675  * lpfc_online - Initialize and bring a HBA online
3676  * @phba: pointer to lpfc hba data structure.
3677  *
3678  * This routine initializes the HBA and brings a HBA online. During this
3679  * process, the management interface is blocked to prevent user space access
3680  * to the HBA interfering with the driver initialization.
3681  *
3682  * Return codes
3683  *   0 - successful
3684  *   1 - failed
3685  **/
3686 int
3687 lpfc_online(struct lpfc_hba *phba)
3688 {
3689         struct lpfc_vport *vport;
3690         struct lpfc_vport **vports;
3691         int i, error = 0;
3692         bool vpis_cleared = false;
3693
3694         if (!phba)
3695                 return 0;
3696         vport = phba->pport;
3697
3698         if (!test_bit(FC_OFFLINE_MODE, &vport->fc_flag))
3699                 return 0;
3700
3701         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3702                         "0458 Bring Adapter online\n");
3703
3704         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3705
3706         if (phba->sli_rev == LPFC_SLI_REV4) {
3707                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3708                         lpfc_unblock_mgmt_io(phba);
3709                         return 1;
3710                 }
3711                 spin_lock_irq(&phba->hbalock);
3712                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3713                         vpis_cleared = true;
3714                 spin_unlock_irq(&phba->hbalock);
3715
3716                 /* Reestablish the local initiator port.
3717                  * The offline process destroyed the previous lport.
3718                  */
3719                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3720                                 !phba->nvmet_support) {
3721                         error = lpfc_nvme_create_localport(phba->pport);
3722                         if (error)
3723                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3724                                         "6132 NVME restore reg failed "
3725                                         "on nvmei error x%x\n", error);
3726                 }
3727         } else {
3728                 lpfc_sli_queue_init(phba);
3729                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3730                         lpfc_unblock_mgmt_io(phba);
3731                         return 1;
3732                 }
3733         }
3734
3735         vports = lpfc_create_vport_work_array(phba);
3736         if (vports != NULL) {
3737                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3738                         clear_bit(FC_OFFLINE_MODE, &vports[i]->fc_flag);
3739                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3740                                 set_bit(FC_VPORT_NEEDS_REG_VPI,
3741                                         &vports[i]->fc_flag);
3742                         if (phba->sli_rev == LPFC_SLI_REV4) {
3743                                 set_bit(FC_VPORT_NEEDS_INIT_VPI,
3744                                         &vports[i]->fc_flag);
3745                                 if ((vpis_cleared) &&
3746                                     (vports[i]->port_type !=
3747                                         LPFC_PHYSICAL_PORT))
3748                                         vports[i]->vpi = 0;
3749                         }
3750                 }
3751         }
3752         lpfc_destroy_vport_work_array(phba, vports);
3753
3754         if (phba->cfg_xri_rebalancing)
3755                 lpfc_create_multixri_pools(phba);
3756
3757         lpfc_cpuhp_add(phba);
3758
3759         lpfc_unblock_mgmt_io(phba);
3760         return 0;
3761 }
3762
3763 /**
3764  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3765  * @phba: pointer to lpfc hba data structure.
3766  *
3767  * This routine marks a HBA's management interface as not blocked. Once the
3768  * HBA's management interface is marked as not blocked, all the user space
3769  * access to the HBA, whether they are from sysfs interface or libdfc
3770  * interface will be allowed. The HBA is set to block the management interface
3771  * when the driver prepares the HBA interface for online or offline and then
3772  * set to unblock the management interface afterwards.
3773  **/
3774 void
3775 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3776 {
3777         unsigned long iflag;
3778
3779         spin_lock_irqsave(&phba->hbalock, iflag);
3780         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3781         spin_unlock_irqrestore(&phba->hbalock, iflag);
3782 }
3783
3784 /**
3785  * lpfc_offline_prep - Prepare a HBA to be brought offline
3786  * @phba: pointer to lpfc hba data structure.
3787  * @mbx_action: flag for mailbox shutdown action.
3788  *
3789  * This routine is invoked to prepare a HBA to be brought offline. It performs
3790  * unregistration login to all the nodes on all vports and flushes the mailbox
3791  * queue to make it ready to be brought offline.
3792  **/
3793 void
3794 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3795 {
3796         struct lpfc_vport *vport = phba->pport;
3797         struct lpfc_nodelist  *ndlp, *next_ndlp;
3798         struct lpfc_vport **vports;
3799         struct Scsi_Host *shost;
3800         int i;
3801         int offline;
3802         bool hba_pci_err;
3803
3804         if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag))
3805                 return;
3806
3807         lpfc_block_mgmt_io(phba, mbx_action);
3808
3809         lpfc_linkdown(phba);
3810
3811         offline =  pci_channel_offline(phba->pcidev);
3812         hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags);
3813
3814         /* Issue an unreg_login to all nodes on all vports */
3815         vports = lpfc_create_vport_work_array(phba);
3816         if (vports != NULL) {
3817                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3818                         if (test_bit(FC_UNLOADING, &vports[i]->load_flag))
3819                                 continue;
3820                         shost = lpfc_shost_from_vport(vports[i]);
3821                         spin_lock_irq(shost->host_lock);
3822                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3823                         spin_unlock_irq(shost->host_lock);
3824                         set_bit(FC_VPORT_NEEDS_REG_VPI, &vports[i]->fc_flag);
3825                         clear_bit(FC_VFI_REGISTERED, &vports[i]->fc_flag);
3826
3827                         list_for_each_entry_safe(ndlp, next_ndlp,
3828                                                  &vports[i]->fc_nodes,
3829                                                  nlp_listp) {
3830
3831                                 clear_bit(NLP_NPR_ADISC, &ndlp->nlp_flag);
3832                                 if (offline || hba_pci_err) {
3833                                         clear_bit(NLP_UNREG_INP,
3834                                                   &ndlp->nlp_flag);
3835                                         clear_bit(NLP_RPI_REGISTERED,
3836                                                   &ndlp->nlp_flag);
3837                                 }
3838
3839                                 if (ndlp->nlp_type & NLP_FABRIC) {
3840                                         lpfc_disc_state_machine(vports[i], ndlp,
3841                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3842
3843                                         /* Don't remove the node unless the node
3844                                          * has been unregistered with the
3845                                          * transport, and we're not in recovery
3846                                          * before dev_loss_tmo triggered.
3847                                          * Otherwise, let dev_loss take care of
3848                                          * the node.
3849                                          */
3850                                         if (!test_bit(NLP_IN_RECOV_POST_DEV_LOSS,
3851                                                       &ndlp->save_flags) &&
3852                                             !(ndlp->fc4_xpt_flags &
3853                                               (NVME_XPT_REGD | SCSI_XPT_REGD)))
3854                                                 lpfc_disc_state_machine
3855                                                         (vports[i], ndlp,
3856                                                          NULL,
3857                                                          NLP_EVT_DEVICE_RM);
3858                                 }
3859                         }
3860                 }
3861         }
3862         lpfc_destroy_vport_work_array(phba, vports);
3863
3864         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3865
3866         if (phba->wq)
3867                 flush_workqueue(phba->wq);
3868 }
3869
3870 /**
3871  * lpfc_offline - Bring a HBA offline
3872  * @phba: pointer to lpfc hba data structure.
3873  *
3874  * This routine actually brings a HBA offline. It stops all the timers
3875  * associated with the HBA, brings down the SLI layer, and eventually
3876  * marks the HBA as in offline state for the upper layer protocol.
3877  **/
3878 void
3879 lpfc_offline(struct lpfc_hba *phba)
3880 {
3881         struct Scsi_Host  *shost;
3882         struct lpfc_vport **vports;
3883         int i;
3884
3885         if (test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag))
3886                 return;
3887
3888         /* stop port and all timers associated with this hba */
3889         lpfc_stop_port(phba);
3890
3891         /* Tear down the local and target port registrations.  The
3892          * nvme transports need to cleanup.
3893          */
3894         lpfc_nvmet_destroy_targetport(phba);
3895         lpfc_nvme_destroy_localport(phba->pport);
3896
3897         vports = lpfc_create_vport_work_array(phba);
3898         if (vports != NULL)
3899                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3900                         lpfc_stop_vport_timers(vports[i]);
3901         lpfc_destroy_vport_work_array(phba, vports);
3902         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3903                         "0460 Bring Adapter offline\n");
3904         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3905            now.  */
3906         lpfc_sli_hba_down(phba);
3907         spin_lock_irq(&phba->hbalock);
3908         phba->work_ha = 0;
3909         spin_unlock_irq(&phba->hbalock);
3910         vports = lpfc_create_vport_work_array(phba);
3911         if (vports != NULL)
3912                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3913                         shost = lpfc_shost_from_vport(vports[i]);
3914                         spin_lock_irq(shost->host_lock);
3915                         vports[i]->work_port_events = 0;
3916                         spin_unlock_irq(shost->host_lock);
3917                         set_bit(FC_OFFLINE_MODE, &vports[i]->fc_flag);
3918                 }
3919         lpfc_destroy_vport_work_array(phba, vports);
3920         /* If OFFLINE flag is clear (i.e. unloading), cpuhp removal is handled
3921          * in hba_unset
3922          */
3923         if (test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag))
3924                 __lpfc_cpuhp_remove(phba);
3925
3926         if (phba->cfg_xri_rebalancing)
3927                 lpfc_destroy_multixri_pools(phba);
3928 }
3929
3930 /**
3931  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3932  * @phba: pointer to lpfc hba data structure.
3933  *
3934  * This routine is to free all the SCSI buffers and IOCBs from the driver
3935  * list back to kernel. It is called from lpfc_pci_remove_one to free
3936  * the internal resources before the device is removed from the system.
3937  **/
3938 static void
3939 lpfc_scsi_free(struct lpfc_hba *phba)
3940 {
3941         struct lpfc_io_buf *sb, *sb_next;
3942
3943         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3944                 return;
3945
3946         spin_lock_irq(&phba->hbalock);
3947
3948         /* Release all the lpfc_scsi_bufs maintained by this host. */
3949
3950         spin_lock(&phba->scsi_buf_list_put_lock);
3951         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3952                                  list) {
3953                 list_del(&sb->list);
3954                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3955                               sb->dma_handle);
3956                 kfree(sb);
3957                 phba->total_scsi_bufs--;
3958         }
3959         spin_unlock(&phba->scsi_buf_list_put_lock);
3960
3961         spin_lock(&phba->scsi_buf_list_get_lock);
3962         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3963                                  list) {
3964                 list_del(&sb->list);
3965                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3966                               sb->dma_handle);
3967                 kfree(sb);
3968                 phba->total_scsi_bufs--;
3969         }
3970         spin_unlock(&phba->scsi_buf_list_get_lock);
3971         spin_unlock_irq(&phba->hbalock);
3972 }
3973
3974 /**
3975  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3976  * @phba: pointer to lpfc hba data structure.
3977  *
3978  * This routine is to free all the IO buffers and IOCBs from the driver
3979  * list back to kernel. It is called from lpfc_pci_remove_one to free
3980  * the internal resources before the device is removed from the system.
3981  **/
3982 void
3983 lpfc_io_free(struct lpfc_hba *phba)
3984 {
3985         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3986         struct lpfc_sli4_hdw_queue *qp;
3987         int idx;
3988
3989         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3990                 qp = &phba->sli4_hba.hdwq[idx];
3991                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3992                 spin_lock(&qp->io_buf_list_put_lock);
3993                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3994                                          &qp->lpfc_io_buf_list_put,
3995                                          list) {
3996                         list_del(&lpfc_ncmd->list);
3997                         qp->put_io_bufs--;
3998                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3999                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4000                         if (phba->cfg_xpsgl && !phba->nvmet_support)
4001                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
4002                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
4003                         kfree(lpfc_ncmd);
4004                         qp->total_io_bufs--;
4005                 }
4006                 spin_unlock(&qp->io_buf_list_put_lock);
4007
4008                 spin_lock(&qp->io_buf_list_get_lock);
4009                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4010                                          &qp->lpfc_io_buf_list_get,
4011                                          list) {
4012                         list_del(&lpfc_ncmd->list);
4013                         qp->get_io_bufs--;
4014                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4015                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4016                         if (phba->cfg_xpsgl && !phba->nvmet_support)
4017                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
4018                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
4019                         kfree(lpfc_ncmd);
4020                         qp->total_io_bufs--;
4021                 }
4022                 spin_unlock(&qp->io_buf_list_get_lock);
4023         }
4024 }
4025
4026 /**
4027  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
4028  * @phba: pointer to lpfc hba data structure.
4029  *
4030  * This routine first calculates the sizes of the current els and allocated
4031  * scsi sgl lists, and then goes through all sgls to updates the physical
4032  * XRIs assigned due to port function reset. During port initialization, the
4033  * current els and allocated scsi sgl lists are 0s.
4034  *
4035  * Return codes
4036  *   0 - successful (for now, it always returns 0)
4037  **/
4038 int
4039 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
4040 {
4041         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
4042         uint16_t i, lxri, xri_cnt, els_xri_cnt;
4043         LIST_HEAD(els_sgl_list);
4044         int rc;
4045
4046         /*
4047          * update on pci function's els xri-sgl list
4048          */
4049         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4050
4051         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
4052                 /* els xri-sgl expanded */
4053                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
4054                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4055                                 "3157 ELS xri-sgl count increased from "
4056                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
4057                                 els_xri_cnt);
4058                 /* allocate the additional els sgls */
4059                 for (i = 0; i < xri_cnt; i++) {
4060                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
4061                                              GFP_KERNEL);
4062                         if (sglq_entry == NULL) {
4063                                 lpfc_printf_log(phba, KERN_ERR,
4064                                                 LOG_TRACE_EVENT,
4065                                                 "2562 Failure to allocate an "
4066                                                 "ELS sgl entry:%d\n", i);
4067                                 rc = -ENOMEM;
4068                                 goto out_free_mem;
4069                         }
4070                         sglq_entry->buff_type = GEN_BUFF_TYPE;
4071                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
4072                                                            &sglq_entry->phys);
4073                         if (sglq_entry->virt == NULL) {
4074                                 kfree(sglq_entry);
4075                                 lpfc_printf_log(phba, KERN_ERR,
4076                                                 LOG_TRACE_EVENT,
4077                                                 "2563 Failure to allocate an "
4078                                                 "ELS mbuf:%d\n", i);
4079                                 rc = -ENOMEM;
4080                                 goto out_free_mem;
4081                         }
4082                         sglq_entry->sgl = sglq_entry->virt;
4083                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4084                         sglq_entry->state = SGL_FREED;
4085                         list_add_tail(&sglq_entry->list, &els_sgl_list);
4086                 }
4087                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
4088                 list_splice_init(&els_sgl_list,
4089                                  &phba->sli4_hba.lpfc_els_sgl_list);
4090                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
4091         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
4092                 /* els xri-sgl shrinked */
4093                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
4094                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4095                                 "3158 ELS xri-sgl count decreased from "
4096                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
4097                                 els_xri_cnt);
4098                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
4099                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
4100                                  &els_sgl_list);
4101                 /* release extra els sgls from list */
4102                 for (i = 0; i < xri_cnt; i++) {
4103                         list_remove_head(&els_sgl_list,
4104                                          sglq_entry, struct lpfc_sglq, list);
4105                         if (sglq_entry) {
4106                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
4107                                                  sglq_entry->phys);
4108                                 kfree(sglq_entry);
4109                         }
4110                 }
4111                 list_splice_init(&els_sgl_list,
4112                                  &phba->sli4_hba.lpfc_els_sgl_list);
4113                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
4114         } else
4115                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4116                                 "3163 ELS xri-sgl count unchanged: %d\n",
4117                                 els_xri_cnt);
4118         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
4119
4120         /* update xris to els sgls on the list */
4121         sglq_entry = NULL;
4122         sglq_entry_next = NULL;
4123         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4124                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
4125                 lxri = lpfc_sli4_next_xritag(phba);
4126                 if (lxri == NO_XRI) {
4127                         lpfc_printf_log(phba, KERN_ERR,
4128                                         LOG_TRACE_EVENT,
4129                                         "2400 Failed to allocate xri for "
4130                                         "ELS sgl\n");
4131                         rc = -ENOMEM;
4132                         goto out_free_mem;
4133                 }
4134                 sglq_entry->sli4_lxritag = lxri;
4135                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4136         }
4137         return 0;
4138
4139 out_free_mem:
4140         lpfc_free_els_sgl_list(phba);
4141         return rc;
4142 }
4143
4144 /**
4145  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
4146  * @phba: pointer to lpfc hba data structure.
4147  *
4148  * This routine first calculates the sizes of the current els and allocated
4149  * scsi sgl lists, and then goes through all sgls to updates the physical
4150  * XRIs assigned due to port function reset. During port initialization, the
4151  * current els and allocated scsi sgl lists are 0s.
4152  *
4153  * Return codes
4154  *   0 - successful (for now, it always returns 0)
4155  **/
4156 int
4157 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
4158 {
4159         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
4160         uint16_t i, lxri, xri_cnt, els_xri_cnt;
4161         uint16_t nvmet_xri_cnt;
4162         LIST_HEAD(nvmet_sgl_list);
4163         int rc;
4164
4165         /*
4166          * update on pci function's nvmet xri-sgl list
4167          */
4168         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4169
4170         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
4171         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4172         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
4173                 /* els xri-sgl expanded */
4174                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
4175                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4176                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
4177                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
4178                 /* allocate the additional nvmet sgls */
4179                 for (i = 0; i < xri_cnt; i++) {
4180                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
4181                                              GFP_KERNEL);
4182                         if (sglq_entry == NULL) {
4183                                 lpfc_printf_log(phba, KERN_ERR,
4184                                                 LOG_TRACE_EVENT,
4185                                                 "6303 Failure to allocate an "
4186                                                 "NVMET sgl entry:%d\n", i);
4187                                 rc = -ENOMEM;
4188                                 goto out_free_mem;
4189                         }
4190                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
4191                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
4192                                                            &sglq_entry->phys);
4193                         if (sglq_entry->virt == NULL) {
4194                                 kfree(sglq_entry);
4195                                 lpfc_printf_log(phba, KERN_ERR,
4196                                                 LOG_TRACE_EVENT,
4197                                                 "6304 Failure to allocate an "
4198                                                 "NVMET buf:%d\n", i);
4199                                 rc = -ENOMEM;
4200                                 goto out_free_mem;
4201                         }
4202                         sglq_entry->sgl = sglq_entry->virt;
4203                         memset(sglq_entry->sgl, 0,
4204                                phba->cfg_sg_dma_buf_size);
4205                         sglq_entry->state = SGL_FREED;
4206                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
4207                 }
4208                 spin_lock_irq(&phba->hbalock);
4209                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4210                 list_splice_init(&nvmet_sgl_list,
4211                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4212                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4213                 spin_unlock_irq(&phba->hbalock);
4214         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
4215                 /* nvmet xri-sgl shrunk */
4216                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
4217                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4218                                 "6305 NVMET xri-sgl count decreased from "
4219                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
4220                                 nvmet_xri_cnt);
4221                 spin_lock_irq(&phba->hbalock);
4222                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4223                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
4224                                  &nvmet_sgl_list);
4225                 /* release extra nvmet sgls from list */
4226                 for (i = 0; i < xri_cnt; i++) {
4227                         list_remove_head(&nvmet_sgl_list,
4228                                          sglq_entry, struct lpfc_sglq, list);
4229                         if (sglq_entry) {
4230                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
4231                                                     sglq_entry->phys);
4232                                 kfree(sglq_entry);
4233                         }
4234                 }
4235                 list_splice_init(&nvmet_sgl_list,
4236                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4237                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4238                 spin_unlock_irq(&phba->hbalock);
4239         } else
4240                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4241                                 "6306 NVMET xri-sgl count unchanged: %d\n",
4242                                 nvmet_xri_cnt);
4243         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
4244
4245         /* update xris to nvmet sgls on the list */
4246         sglq_entry = NULL;
4247         sglq_entry_next = NULL;
4248         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4249                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
4250                 lxri = lpfc_sli4_next_xritag(phba);
4251                 if (lxri == NO_XRI) {
4252                         lpfc_printf_log(phba, KERN_ERR,
4253                                         LOG_TRACE_EVENT,
4254                                         "6307 Failed to allocate xri for "
4255                                         "NVMET sgl\n");
4256                         rc = -ENOMEM;
4257                         goto out_free_mem;
4258                 }
4259                 sglq_entry->sli4_lxritag = lxri;
4260                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4261         }
4262         return 0;
4263
4264 out_free_mem:
4265         lpfc_free_nvmet_sgl_list(phba);
4266         return rc;
4267 }
4268
4269 int
4270 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
4271 {
4272         LIST_HEAD(blist);
4273         struct lpfc_sli4_hdw_queue *qp;
4274         struct lpfc_io_buf *lpfc_cmd;
4275         struct lpfc_io_buf *iobufp, *prev_iobufp;
4276         int idx, cnt, xri, inserted;
4277
4278         cnt = 0;
4279         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4280                 qp = &phba->sli4_hba.hdwq[idx];
4281                 spin_lock_irq(&qp->io_buf_list_get_lock);
4282                 spin_lock(&qp->io_buf_list_put_lock);
4283
4284                 /* Take everything off the get and put lists */
4285                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
4286                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
4287                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
4288                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
4289                 cnt += qp->get_io_bufs + qp->put_io_bufs;
4290                 qp->get_io_bufs = 0;
4291                 qp->put_io_bufs = 0;
4292                 qp->total_io_bufs = 0;
4293                 spin_unlock(&qp->io_buf_list_put_lock);
4294                 spin_unlock_irq(&qp->io_buf_list_get_lock);
4295         }
4296
4297         /*
4298          * Take IO buffers off blist and put on cbuf sorted by XRI.
4299          * This is because POST_SGL takes a sequential range of XRIs
4300          * to post to the firmware.
4301          */
4302         for (idx = 0; idx < cnt; idx++) {
4303                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
4304                 if (!lpfc_cmd)
4305                         return cnt;
4306                 if (idx == 0) {
4307                         list_add_tail(&lpfc_cmd->list, cbuf);
4308                         continue;
4309                 }
4310                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
4311                 inserted = 0;
4312                 prev_iobufp = NULL;
4313                 list_for_each_entry(iobufp, cbuf, list) {
4314                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
4315                                 if (prev_iobufp)
4316                                         list_add(&lpfc_cmd->list,
4317                                                  &prev_iobufp->list);
4318                                 else
4319                                         list_add(&lpfc_cmd->list, cbuf);
4320                                 inserted = 1;
4321                                 break;
4322                         }
4323                         prev_iobufp = iobufp;
4324                 }
4325                 if (!inserted)
4326                         list_add_tail(&lpfc_cmd->list, cbuf);
4327         }
4328         return cnt;
4329 }
4330
4331 int
4332 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
4333 {
4334         struct lpfc_sli4_hdw_queue *qp;
4335         struct lpfc_io_buf *lpfc_cmd;
4336         int idx, cnt;
4337         unsigned long iflags;
4338
4339         qp = phba->sli4_hba.hdwq;
4340         cnt = 0;
4341         while (!list_empty(cbuf)) {
4342                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4343                         list_remove_head(cbuf, lpfc_cmd,
4344                                          struct lpfc_io_buf, list);
4345                         if (!lpfc_cmd)
4346                                 return cnt;
4347                         cnt++;
4348                         qp = &phba->sli4_hba.hdwq[idx];
4349                         lpfc_cmd->hdwq_no = idx;
4350                         lpfc_cmd->hdwq = qp;
4351                         lpfc_cmd->cur_iocbq.cmd_cmpl = NULL;
4352                         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflags);
4353                         list_add_tail(&lpfc_cmd->list,
4354                                       &qp->lpfc_io_buf_list_put);
4355                         qp->put_io_bufs++;
4356                         qp->total_io_bufs++;
4357                         spin_unlock_irqrestore(&qp->io_buf_list_put_lock,
4358                                                iflags);
4359                 }
4360         }
4361         return cnt;
4362 }
4363
4364 /**
4365  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
4366  * @phba: pointer to lpfc hba data structure.
4367  *
4368  * This routine first calculates the sizes of the current els and allocated
4369  * scsi sgl lists, and then goes through all sgls to updates the physical
4370  * XRIs assigned due to port function reset. During port initialization, the
4371  * current els and allocated scsi sgl lists are 0s.
4372  *
4373  * Return codes
4374  *   0 - successful (for now, it always returns 0)
4375  **/
4376 int
4377 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4378 {
4379         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4380         uint16_t i, lxri, els_xri_cnt;
4381         uint16_t io_xri_cnt, io_xri_max;
4382         LIST_HEAD(io_sgl_list);
4383         int rc, cnt;
4384
4385         /*
4386          * update on pci function's allocated nvme xri-sgl list
4387          */
4388
4389         /* maximum number of xris available for nvme buffers */
4390         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4391         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4392         phba->sli4_hba.io_xri_max = io_xri_max;
4393
4394         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4395                         "6074 Current allocated XRI sgl count:%d, "
4396                         "maximum XRI count:%d els_xri_cnt:%d\n\n",
4397                         phba->sli4_hba.io_xri_cnt,
4398                         phba->sli4_hba.io_xri_max,
4399                         els_xri_cnt);
4400
4401         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4402
4403         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4404                 /* max nvme xri shrunk below the allocated nvme buffers */
4405                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4406                                         phba->sli4_hba.io_xri_max;
4407                 /* release the extra allocated nvme buffers */
4408                 for (i = 0; i < io_xri_cnt; i++) {
4409                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4410                                          struct lpfc_io_buf, list);
4411                         if (lpfc_ncmd) {
4412                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4413                                               lpfc_ncmd->data,
4414                                               lpfc_ncmd->dma_handle);
4415                                 kfree(lpfc_ncmd);
4416                         }
4417                 }
4418                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4419         }
4420
4421         /* update xris associated to remaining allocated nvme buffers */
4422         lpfc_ncmd = NULL;
4423         lpfc_ncmd_next = NULL;
4424         phba->sli4_hba.io_xri_cnt = cnt;
4425         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4426                                  &io_sgl_list, list) {
4427                 lxri = lpfc_sli4_next_xritag(phba);
4428                 if (lxri == NO_XRI) {
4429                         lpfc_printf_log(phba, KERN_ERR,
4430                                         LOG_TRACE_EVENT,
4431                                         "6075 Failed to allocate xri for "
4432                                         "nvme buffer\n");
4433                         rc = -ENOMEM;
4434                         goto out_free_mem;
4435                 }
4436                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4437                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4438         }
4439         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4440         return 0;
4441
4442 out_free_mem:
4443         lpfc_io_free(phba);
4444         return rc;
4445 }
4446
4447 /**
4448  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4449  * @phba: Pointer to lpfc hba data structure.
4450  * @num_to_alloc: The requested number of buffers to allocate.
4451  *
4452  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4453  * the nvme buffer contains all the necessary information needed to initiate
4454  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4455  * them on a list, it post them to the port by using SGL block post.
4456  *
4457  * Return codes:
4458  *   int - number of IO buffers that were allocated and posted.
4459  *   0 = failure, less than num_to_alloc is a partial failure.
4460  **/
4461 int
4462 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4463 {
4464         struct lpfc_io_buf *lpfc_ncmd;
4465         struct lpfc_iocbq *pwqeq;
4466         uint16_t iotag, lxri = 0;
4467         int bcnt, num_posted;
4468         LIST_HEAD(prep_nblist);
4469         LIST_HEAD(post_nblist);
4470         LIST_HEAD(nvme_nblist);
4471
4472         phba->sli4_hba.io_xri_cnt = 0;
4473         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4474                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4475                 if (!lpfc_ncmd)
4476                         break;
4477                 /*
4478                  * Get memory from the pci pool to map the virt space to
4479                  * pci bus space for an I/O. The DMA buffer includes the
4480                  * number of SGE's necessary to support the sg_tablesize.
4481                  */
4482                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4483                                                   GFP_KERNEL,
4484                                                   &lpfc_ncmd->dma_handle);
4485                 if (!lpfc_ncmd->data) {
4486                         kfree(lpfc_ncmd);
4487                         break;
4488                 }
4489
4490                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4491                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4492                 } else {
4493                         /*
4494                          * 4K Page alignment is CRITICAL to BlockGuard, double
4495                          * check to be sure.
4496                          */
4497                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4498                             (((unsigned long)(lpfc_ncmd->data) &
4499                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4500                                 lpfc_printf_log(phba, KERN_ERR,
4501                                                 LOG_TRACE_EVENT,
4502                                                 "3369 Memory alignment err: "
4503                                                 "addr=%lx\n",
4504                                                 (unsigned long)lpfc_ncmd->data);
4505                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4506                                               lpfc_ncmd->data,
4507                                               lpfc_ncmd->dma_handle);
4508                                 kfree(lpfc_ncmd);
4509                                 break;
4510                         }
4511                 }
4512
4513                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4514
4515                 lxri = lpfc_sli4_next_xritag(phba);
4516                 if (lxri == NO_XRI) {
4517                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4518                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4519                         kfree(lpfc_ncmd);
4520                         break;
4521                 }
4522                 pwqeq = &lpfc_ncmd->cur_iocbq;
4523
4524                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4525                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4526                 if (iotag == 0) {
4527                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4528                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4529                         kfree(lpfc_ncmd);
4530                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4531                                         "6121 Failed to allocate IOTAG for"
4532                                         " XRI:0x%x\n", lxri);
4533                         lpfc_sli4_free_xri(phba, lxri);
4534                         break;
4535                 }
4536                 pwqeq->sli4_lxritag = lxri;
4537                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4538
4539                 /* Initialize local short-hand pointers. */
4540                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4541                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4542                 lpfc_ncmd->cur_iocbq.io_buf = lpfc_ncmd;
4543                 spin_lock_init(&lpfc_ncmd->buf_lock);
4544
4545                 /* add the nvme buffer to a post list */
4546                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4547                 phba->sli4_hba.io_xri_cnt++;
4548         }
4549         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4550                         "6114 Allocate %d out of %d requested new NVME "
4551                         "buffers of size x%zu bytes\n", bcnt, num_to_alloc,
4552                         sizeof(*lpfc_ncmd));
4553
4554
4555         /* post the list of nvme buffer sgls to port if available */
4556         if (!list_empty(&post_nblist))
4557                 num_posted = lpfc_sli4_post_io_sgl_list(
4558                                 phba, &post_nblist, bcnt);
4559         else
4560                 num_posted = 0;
4561
4562         return num_posted;
4563 }
4564
4565 static uint64_t
4566 lpfc_get_wwpn(struct lpfc_hba *phba)
4567 {
4568         uint64_t wwn;
4569         int rc;
4570         LPFC_MBOXQ_t *mboxq;
4571         MAILBOX_t *mb;
4572
4573         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4574                                                 GFP_KERNEL);
4575         if (!mboxq)
4576                 return (uint64_t)-1;
4577
4578         /* First get WWN of HBA instance */
4579         lpfc_read_nv(phba, mboxq);
4580         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4581         if (rc != MBX_SUCCESS) {
4582                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4583                                 "6019 Mailbox failed , mbxCmd x%x "
4584                                 "READ_NV, mbxStatus x%x\n",
4585                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4586                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4587                 mempool_free(mboxq, phba->mbox_mem_pool);
4588                 return (uint64_t) -1;
4589         }
4590         mb = &mboxq->u.mb;
4591         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4592         /* wwn is WWPN of HBA instance */
4593         mempool_free(mboxq, phba->mbox_mem_pool);
4594         if (phba->sli_rev == LPFC_SLI_REV4)
4595                 return be64_to_cpu(wwn);
4596         else
4597                 return rol64(wwn, 32);
4598 }
4599
4600 static unsigned short lpfc_get_sg_tablesize(struct lpfc_hba *phba)
4601 {
4602         if (phba->sli_rev == LPFC_SLI_REV4)
4603                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4604                         return LPFC_MAX_SG_TABLESIZE;
4605                 else
4606                         return phba->cfg_scsi_seg_cnt;
4607         else
4608                 return phba->cfg_sg_seg_cnt;
4609 }
4610
4611 /**
4612  * lpfc_vmid_res_alloc - Allocates resources for VMID
4613  * @phba: pointer to lpfc hba data structure.
4614  * @vport: pointer to vport data structure
4615  *
4616  * This routine allocated the resources needed for the VMID.
4617  *
4618  * Return codes
4619  *      0 on Success
4620  *      Non-0 on Failure
4621  */
4622 static int
4623 lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport)
4624 {
4625         /* VMID feature is supported only on SLI4 */
4626         if (phba->sli_rev == LPFC_SLI_REV3) {
4627                 phba->cfg_vmid_app_header = 0;
4628                 phba->cfg_vmid_priority_tagging = 0;
4629         }
4630
4631         if (lpfc_is_vmid_enabled(phba)) {
4632                 vport->vmid =
4633                     kcalloc(phba->cfg_max_vmid, sizeof(struct lpfc_vmid),
4634                             GFP_KERNEL);
4635                 if (!vport->vmid)
4636                         return -ENOMEM;
4637
4638                 rwlock_init(&vport->vmid_lock);
4639
4640                 /* Set the VMID parameters for the vport */
4641                 vport->vmid_priority_tagging = phba->cfg_vmid_priority_tagging;
4642                 vport->vmid_inactivity_timeout =
4643                     phba->cfg_vmid_inactivity_timeout;
4644                 vport->max_vmid = phba->cfg_max_vmid;
4645                 vport->cur_vmid_cnt = 0;
4646
4647                 vport->vmid_priority_range = bitmap_zalloc
4648                         (LPFC_VMID_MAX_PRIORITY_RANGE, GFP_KERNEL);
4649
4650                 if (!vport->vmid_priority_range) {
4651                         kfree(vport->vmid);
4652                         return -ENOMEM;
4653                 }
4654
4655                 hash_init(vport->hash_table);
4656         }
4657         return 0;
4658 }
4659
4660 /**
4661  * lpfc_create_port - Create an FC port
4662  * @phba: pointer to lpfc hba data structure.
4663  * @instance: a unique integer ID to this FC port.
4664  * @dev: pointer to the device data structure.
4665  *
4666  * This routine creates a FC port for the upper layer protocol. The FC port
4667  * can be created on top of either a physical port or a virtual port provided
4668  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4669  * and associates the FC port created before adding the shost into the SCSI
4670  * layer.
4671  *
4672  * Return codes
4673  *   @vport - pointer to the virtual N_Port data structure.
4674  *   NULL - port create failed.
4675  **/
4676 struct lpfc_vport *
4677 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4678 {
4679         struct lpfc_vport *vport;
4680         struct Scsi_Host  *shost = NULL;
4681         struct scsi_host_template *template;
4682         int error = 0;
4683         int i;
4684         uint64_t wwn;
4685         bool use_no_reset_hba = false;
4686         int rc;
4687         u8 if_type;
4688
4689         if (lpfc_no_hba_reset_cnt) {
4690                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4691                     dev == &phba->pcidev->dev) {
4692                         /* Reset the port first */
4693                         lpfc_sli_brdrestart(phba);
4694                         rc = lpfc_sli_chipset_init(phba);
4695                         if (rc)
4696                                 return NULL;
4697                 }
4698                 wwn = lpfc_get_wwpn(phba);
4699         }
4700
4701         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4702                 if (wwn == lpfc_no_hba_reset[i]) {
4703                         lpfc_printf_log(phba, KERN_ERR,
4704                                         LOG_TRACE_EVENT,
4705                                         "6020 Setting use_no_reset port=%llx\n",
4706                                         wwn);
4707                         use_no_reset_hba = true;
4708                         break;
4709                 }
4710         }
4711
4712         /* Seed template for SCSI host registration */
4713         if (dev == &phba->pcidev->dev) {
4714                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4715                         /* Seed physical port template */
4716                         template = &lpfc_template;
4717
4718                         if (use_no_reset_hba)
4719                                 /* template is for a no reset SCSI Host */
4720                                 template->eh_host_reset_handler = NULL;
4721
4722                         /* Seed updated value of sg_tablesize */
4723                         template->sg_tablesize = lpfc_get_sg_tablesize(phba);
4724                 } else {
4725                         /* NVMET is for physical port only */
4726                         template = &lpfc_template_nvme;
4727                 }
4728         } else {
4729                 /* Seed vport template */
4730                 template = &lpfc_vport_template;
4731
4732                 /* Seed updated value of sg_tablesize */
4733                 template->sg_tablesize = lpfc_get_sg_tablesize(phba);
4734         }
4735
4736         shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4737         if (!shost)
4738                 goto out;
4739
4740         vport = (struct lpfc_vport *) shost->hostdata;
4741         vport->phba = phba;
4742         set_bit(FC_LOADING, &vport->load_flag);
4743         set_bit(FC_VPORT_NEEDS_REG_VPI, &vport->fc_flag);
4744         vport->fc_rscn_flush = 0;
4745         atomic_set(&vport->fc_plogi_cnt, 0);
4746         atomic_set(&vport->fc_adisc_cnt, 0);
4747         atomic_set(&vport->fc_reglogin_cnt, 0);
4748         atomic_set(&vport->fc_prli_cnt, 0);
4749         atomic_set(&vport->fc_unmap_cnt, 0);
4750         atomic_set(&vport->fc_map_cnt, 0);
4751         atomic_set(&vport->fc_npr_cnt, 0);
4752         atomic_set(&vport->fc_unused_cnt, 0);
4753         lpfc_get_vport_cfgparam(vport);
4754
4755         /* Adjust value in vport */
4756         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4757
4758         shost->unique_id = instance;
4759         shost->max_id = LPFC_MAX_TARGET;
4760         shost->max_lun = vport->cfg_max_luns;
4761         shost->this_id = -1;
4762
4763         /* Set max_cmd_len applicable to ASIC support */
4764         if (phba->sli_rev == LPFC_SLI_REV4) {
4765                 if_type = bf_get(lpfc_sli_intf_if_type,
4766                                  &phba->sli4_hba.sli_intf);
4767                 switch (if_type) {
4768                 case LPFC_SLI_INTF_IF_TYPE_2:
4769                         fallthrough;
4770                 case LPFC_SLI_INTF_IF_TYPE_6:
4771                         shost->max_cmd_len = LPFC_FCP_CDB_LEN_32;
4772                         break;
4773                 default:
4774                         shost->max_cmd_len = LPFC_FCP_CDB_LEN;
4775                         break;
4776                 }
4777         } else {
4778                 shost->max_cmd_len = LPFC_FCP_CDB_LEN;
4779         }
4780
4781         if (phba->sli_rev == LPFC_SLI_REV4) {
4782                 if (!phba->cfg_fcp_mq_threshold ||
4783                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4784                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4785
4786                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4787                                             phba->cfg_fcp_mq_threshold);
4788
4789                 shost->dma_boundary =
4790                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4791         } else
4792                 /* SLI-3 has a limited number of hardware queues (3),
4793                  * thus there is only one for FCP processing.
4794                  */
4795                 shost->nr_hw_queues = 1;
4796
4797         /*
4798          * Set initial can_queue value since 0 is no longer supported and
4799          * scsi_add_host will fail. This will be adjusted later based on the
4800          * max xri value determined in hba setup.
4801          */
4802         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4803         if (dev != &phba->pcidev->dev) {
4804                 shost->transportt = lpfc_vport_transport_template;
4805                 vport->port_type = LPFC_NPIV_PORT;
4806         } else {
4807                 shost->transportt = lpfc_transport_template;
4808                 vport->port_type = LPFC_PHYSICAL_PORT;
4809         }
4810
4811         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4812                         "9081 CreatePort TMPLATE type %x TBLsize %d "
4813                         "SEGcnt %d/%d\n",
4814                         vport->port_type, shost->sg_tablesize,
4815                         phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4816
4817         /* Allocate the resources for VMID */
4818         rc = lpfc_vmid_res_alloc(phba, vport);
4819
4820         if (rc)
4821                 goto out_put_shost;
4822
4823         /* Initialize all internally managed lists. */
4824         INIT_LIST_HEAD(&vport->fc_nodes);
4825         spin_lock_init(&vport->fc_nodes_list_lock);
4826         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4827         spin_lock_init(&vport->work_port_lock);
4828
4829         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4830
4831         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4832
4833         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4834
4835         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4836                 lpfc_setup_bg(phba, shost);
4837
4838         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4839         if (error)
4840                 goto out_free_vmid;
4841
4842         spin_lock_irq(&phba->port_list_lock);
4843         list_add_tail(&vport->listentry, &phba->port_list);
4844         spin_unlock_irq(&phba->port_list_lock);
4845         return vport;
4846
4847 out_free_vmid:
4848         kfree(vport->vmid);
4849         bitmap_free(vport->vmid_priority_range);
4850 out_put_shost:
4851         scsi_host_put(shost);
4852 out:
4853         return NULL;
4854 }
4855
4856 /**
4857  * destroy_port -  destroy an FC port
4858  * @vport: pointer to an lpfc virtual N_Port data structure.
4859  *
4860  * This routine destroys a FC port from the upper layer protocol. All the
4861  * resources associated with the port are released.
4862  **/
4863 void
4864 destroy_port(struct lpfc_vport *vport)
4865 {
4866         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4867         struct lpfc_hba  *phba = vport->phba;
4868
4869         lpfc_debugfs_terminate(vport);
4870         fc_remove_host(shost);
4871         scsi_remove_host(shost);
4872
4873         spin_lock_irq(&phba->port_list_lock);
4874         list_del_init(&vport->listentry);
4875         spin_unlock_irq(&phba->port_list_lock);
4876
4877         lpfc_cleanup(vport);
4878         return;
4879 }
4880
4881 /**
4882  * lpfc_get_instance - Get a unique integer ID
4883  *
4884  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4885  * uses the kernel idr facility to perform the task.
4886  *
4887  * Return codes:
4888  *   instance - a unique integer ID allocated as the new instance.
4889  *   -1 - lpfc get instance failed.
4890  **/
4891 int
4892 lpfc_get_instance(void)
4893 {
4894         int ret;
4895
4896         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4897         return ret < 0 ? -1 : ret;
4898 }
4899
4900 /**
4901  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4902  * @shost: pointer to SCSI host data structure.
4903  * @time: elapsed time of the scan in jiffies.
4904  *
4905  * This routine is called by the SCSI layer with a SCSI host to determine
4906  * whether the scan host is finished.
4907  *
4908  * Note: there is no scan_start function as adapter initialization will have
4909  * asynchronously kicked off the link initialization.
4910  *
4911  * Return codes
4912  *   0 - SCSI host scan is not over yet.
4913  *   1 - SCSI host scan is over.
4914  **/
4915 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4916 {
4917         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4918         struct lpfc_hba   *phba = vport->phba;
4919         int stat = 0;
4920
4921         spin_lock_irq(shost->host_lock);
4922
4923         if (test_bit(FC_UNLOADING, &vport->load_flag)) {
4924                 stat = 1;
4925                 goto finished;
4926         }
4927         if (time >= secs_to_jiffies(30)) {
4928                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4929                                 "0461 Scanning longer than 30 "
4930                                 "seconds.  Continuing initialization\n");
4931                 stat = 1;
4932                 goto finished;
4933         }
4934         if (time >= secs_to_jiffies(15) &&
4935             phba->link_state <= LPFC_LINK_DOWN) {
4936                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4937                                 "0465 Link down longer than 15 "
4938                                 "seconds.  Continuing initialization\n");
4939                 stat = 1;
4940                 goto finished;
4941         }
4942
4943         if (vport->port_state != LPFC_VPORT_READY)
4944                 goto finished;
4945         if (vport->num_disc_nodes || vport->fc_prli_sent)
4946                 goto finished;
4947         if (!atomic_read(&vport->fc_map_cnt) &&
4948             time < secs_to_jiffies(2))
4949                 goto finished;
4950         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4951                 goto finished;
4952
4953         stat = 1;
4954
4955 finished:
4956         spin_unlock_irq(shost->host_lock);
4957         return stat;
4958 }
4959
4960 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4961 {
4962         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4963         struct lpfc_hba   *phba = vport->phba;
4964
4965         fc_host_supported_speeds(shost) = 0;
4966         /*
4967          * Avoid reporting supported link speed for FCoE as it can't be
4968          * controlled via FCoE.
4969          */
4970         if (test_bit(HBA_FCOE_MODE, &phba->hba_flag))
4971                 return;
4972
4973         if (phba->lmt & LMT_256Gb)
4974                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_256GBIT;
4975         if (phba->lmt & LMT_128Gb)
4976                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4977         if (phba->lmt & LMT_64Gb)
4978                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4979         if (phba->lmt & LMT_32Gb)
4980                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4981         if (phba->lmt & LMT_16Gb)
4982                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4983         if (phba->lmt & LMT_10Gb)
4984                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4985         if (phba->lmt & LMT_8Gb)
4986                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4987         if (phba->lmt & LMT_4Gb)
4988                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4989         if (phba->lmt & LMT_2Gb)
4990                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4991         if (phba->lmt & LMT_1Gb)
4992                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4993 }
4994
4995 /**
4996  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4997  * @shost: pointer to SCSI host data structure.
4998  *
4999  * This routine initializes a given SCSI host attributes on a FC port. The
5000  * SCSI host can be either on top of a physical port or a virtual port.
5001  **/
5002 void lpfc_host_attrib_init(struct Scsi_Host *shost)
5003 {
5004         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
5005         struct lpfc_hba   *phba = vport->phba;
5006         /*
5007          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
5008          */
5009
5010         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
5011         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
5012         fc_host_supported_classes(shost) = FC_COS_CLASS3;
5013
5014         memset(fc_host_supported_fc4s(shost), 0,
5015                sizeof(fc_host_supported_fc4s(shost)));
5016         fc_host_supported_fc4s(shost)[2] = 1;
5017         fc_host_supported_fc4s(shost)[7] = 1;
5018
5019         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
5020                                  sizeof fc_host_symbolic_name(shost));
5021
5022         lpfc_host_supported_speeds_set(shost);
5023
5024         fc_host_maxframe_size(shost) =
5025                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
5026                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
5027
5028         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
5029
5030         /* This value is also unchanging */
5031         memset(fc_host_active_fc4s(shost), 0,
5032                sizeof(fc_host_active_fc4s(shost)));
5033         fc_host_active_fc4s(shost)[2] = 1;
5034         fc_host_active_fc4s(shost)[7] = 1;
5035
5036         fc_host_max_npiv_vports(shost) = phba->max_vpi;
5037         clear_bit(FC_LOADING, &vport->load_flag);
5038 }
5039
5040 /**
5041  * lpfc_stop_port_s3 - Stop SLI3 device port
5042  * @phba: pointer to lpfc hba data structure.
5043  *
5044  * This routine is invoked to stop an SLI3 device port, it stops the device
5045  * from generating interrupts and stops the device driver's timers for the
5046  * device.
5047  **/
5048 static void
5049 lpfc_stop_port_s3(struct lpfc_hba *phba)
5050 {
5051         /* Clear all interrupt enable conditions */
5052         writel(0, phba->HCregaddr);
5053         readl(phba->HCregaddr); /* flush */
5054         /* Clear all pending interrupts */
5055         writel(0xffffffff, phba->HAregaddr);
5056         readl(phba->HAregaddr); /* flush */
5057
5058         /* Reset some HBA SLI setup states */
5059         lpfc_stop_hba_timers(phba);
5060         phba->pport->work_port_events = 0;
5061 }
5062
5063 /**
5064  * lpfc_stop_port_s4 - Stop SLI4 device port
5065  * @phba: pointer to lpfc hba data structure.
5066  *
5067  * This routine is invoked to stop an SLI4 device port, it stops the device
5068  * from generating interrupts and stops the device driver's timers for the
5069  * device.
5070  **/
5071 static void
5072 lpfc_stop_port_s4(struct lpfc_hba *phba)
5073 {
5074         /* Reset some HBA SLI4 setup states */
5075         lpfc_stop_hba_timers(phba);
5076         if (phba->pport)
5077                 phba->pport->work_port_events = 0;
5078         phba->sli4_hba.intr_enable = 0;
5079 }
5080
5081 /**
5082  * lpfc_stop_port - Wrapper function for stopping hba port
5083  * @phba: Pointer to HBA context object.
5084  *
5085  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
5086  * the API jump table function pointer from the lpfc_hba struct.
5087  **/
5088 void
5089 lpfc_stop_port(struct lpfc_hba *phba)
5090 {
5091         phba->lpfc_stop_port(phba);
5092
5093         if (phba->wq)
5094                 flush_workqueue(phba->wq);
5095 }
5096
5097 /**
5098  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
5099  * @phba: Pointer to hba for which this call is being executed.
5100  *
5101  * This routine starts the timer waiting for the FCF rediscovery to complete.
5102  **/
5103 void
5104 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
5105 {
5106         unsigned long fcf_redisc_wait_tmo =
5107                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
5108         /* Start fcf rediscovery wait period timer */
5109         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
5110         spin_lock_irq(&phba->hbalock);
5111         /* Allow action to new fcf asynchronous event */
5112         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
5113         /* Mark the FCF rediscovery pending state */
5114         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
5115         spin_unlock_irq(&phba->hbalock);
5116 }
5117
5118 /**
5119  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
5120  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
5121  *
5122  * This routine is invoked when waiting for FCF table rediscover has been
5123  * timed out. If new FCF record(s) has (have) been discovered during the
5124  * wait period, a new FCF event shall be added to the FCOE async event
5125  * list, and then worker thread shall be waked up for processing from the
5126  * worker thread context.
5127  **/
5128 static void
5129 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
5130 {
5131         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
5132
5133         /* Don't send FCF rediscovery event if timer cancelled */
5134         spin_lock_irq(&phba->hbalock);
5135         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
5136                 spin_unlock_irq(&phba->hbalock);
5137                 return;
5138         }
5139         /* Clear FCF rediscovery timer pending flag */
5140         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
5141         /* FCF rediscovery event to worker thread */
5142         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
5143         spin_unlock_irq(&phba->hbalock);
5144         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
5145                         "2776 FCF rediscover quiescent timer expired\n");
5146         /* wake up worker thread */
5147         lpfc_worker_wake_up(phba);
5148 }
5149
5150 /**
5151  * lpfc_vmid_poll - VMID timeout detection
5152  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
5153  *
5154  * This routine is invoked when there is no I/O on by a VM for the specified
5155  * amount of time. When this situation is detected, the VMID has to be
5156  * deregistered from the switch and all the local resources freed. The VMID
5157  * will be reassigned to the VM once the I/O begins.
5158  **/
5159 static void
5160 lpfc_vmid_poll(struct timer_list *t)
5161 {
5162         struct lpfc_hba *phba = from_timer(phba, t, inactive_vmid_poll);
5163         u32 wake_up = 0;
5164
5165         /* check if there is a need to issue QFPA */
5166         if (phba->pport->vmid_priority_tagging) {
5167                 wake_up = 1;
5168                 phba->pport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA;
5169         }
5170
5171         /* Is the vmid inactivity timer enabled */
5172         if (phba->pport->vmid_inactivity_timeout ||
5173             test_bit(FC_DEREGISTER_ALL_APP_ID, &phba->pport->load_flag)) {
5174                 wake_up = 1;
5175                 phba->pport->work_port_events |= WORKER_CHECK_INACTIVE_VMID;
5176         }
5177
5178         if (wake_up)
5179                 lpfc_worker_wake_up(phba);
5180
5181         /* restart the timer for the next iteration */
5182         mod_timer(&phba->inactive_vmid_poll,
5183                   jiffies + secs_to_jiffies(LPFC_VMID_TIMER));
5184 }
5185
5186 /**
5187  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
5188  * @phba: pointer to lpfc hba data structure.
5189  * @acqe_link: pointer to the async link completion queue entry.
5190  *
5191  * This routine is to parse the SLI4 link-attention link fault code.
5192  **/
5193 static void
5194 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
5195                            struct lpfc_acqe_link *acqe_link)
5196 {
5197         switch (bf_get(lpfc_acqe_fc_la_att_type, acqe_link)) {
5198         case LPFC_FC_LA_TYPE_LINK_DOWN:
5199         case LPFC_FC_LA_TYPE_TRUNKING_EVENT:
5200         case LPFC_FC_LA_TYPE_ACTIVATE_FAIL:
5201         case LPFC_FC_LA_TYPE_LINK_RESET_PRTCL_EVT:
5202                 break;
5203         default:
5204                 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
5205                 case LPFC_ASYNC_LINK_FAULT_NONE:
5206                 case LPFC_ASYNC_LINK_FAULT_LOCAL:
5207                 case LPFC_ASYNC_LINK_FAULT_REMOTE:
5208                 case LPFC_ASYNC_LINK_FAULT_LR_LRR:
5209                         break;
5210                 default:
5211                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5212                                         "0398 Unknown link fault code: x%x\n",
5213                                         bf_get(lpfc_acqe_link_fault, acqe_link));
5214                         break;
5215                 }
5216                 break;
5217         }
5218 }
5219
5220 /**
5221  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5222  * @phba: pointer to lpfc hba data structure.
5223  * @acqe_link: pointer to the async link completion queue entry.
5224  *
5225  * This routine is to parse the SLI4 link attention type and translate it
5226  * into the base driver's link attention type coding.
5227  *
5228  * Return: Link attention type in terms of base driver's coding.
5229  **/
5230 static uint8_t
5231 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
5232                           struct lpfc_acqe_link *acqe_link)
5233 {
5234         uint8_t att_type;
5235
5236         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
5237         case LPFC_ASYNC_LINK_STATUS_DOWN:
5238         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
5239                 att_type = LPFC_ATT_LINK_DOWN;
5240                 break;
5241         case LPFC_ASYNC_LINK_STATUS_UP:
5242                 /* Ignore physical link up events - wait for logical link up */
5243                 att_type = LPFC_ATT_RESERVED;
5244                 break;
5245         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
5246                 att_type = LPFC_ATT_LINK_UP;
5247                 break;
5248         default:
5249                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5250                                 "0399 Invalid link attention type: x%x\n",
5251                                 bf_get(lpfc_acqe_link_status, acqe_link));
5252                 att_type = LPFC_ATT_RESERVED;
5253                 break;
5254         }
5255         return att_type;
5256 }
5257
5258 /**
5259  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
5260  * @phba: pointer to lpfc hba data structure.
5261  *
5262  * This routine is to get an SLI3 FC port's link speed in Mbps.
5263  *
5264  * Return: link speed in terms of Mbps.
5265  **/
5266 uint32_t
5267 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
5268 {
5269         uint32_t link_speed;
5270
5271         if (!lpfc_is_link_up(phba))
5272                 return 0;
5273
5274         if (phba->sli_rev <= LPFC_SLI_REV3) {
5275                 switch (phba->fc_linkspeed) {
5276                 case LPFC_LINK_SPEED_1GHZ:
5277                         link_speed = 1000;
5278                         break;
5279                 case LPFC_LINK_SPEED_2GHZ:
5280                         link_speed = 2000;
5281                         break;
5282                 case LPFC_LINK_SPEED_4GHZ:
5283                         link_speed = 4000;
5284                         break;
5285                 case LPFC_LINK_SPEED_8GHZ:
5286                         link_speed = 8000;
5287                         break;
5288                 case LPFC_LINK_SPEED_10GHZ:
5289                         link_speed = 10000;
5290                         break;
5291                 case LPFC_LINK_SPEED_16GHZ:
5292                         link_speed = 16000;
5293                         break;
5294                 default:
5295                         link_speed = 0;
5296                 }
5297         } else {
5298                 if (phba->sli4_hba.link_state.logical_speed)
5299                         link_speed =
5300                               phba->sli4_hba.link_state.logical_speed;
5301                 else
5302                         link_speed = phba->sli4_hba.link_state.speed;
5303         }
5304         return link_speed;
5305 }
5306
5307 /**
5308  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
5309  * @phba: pointer to lpfc hba data structure.
5310  * @evt_code: asynchronous event code.
5311  * @speed_code: asynchronous event link speed code.
5312  *
5313  * This routine is to parse the giving SLI4 async event link speed code into
5314  * value of Mbps for the link speed.
5315  *
5316  * Return: link speed in terms of Mbps.
5317  **/
5318 static uint32_t
5319 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
5320                            uint8_t speed_code)
5321 {
5322         uint32_t port_speed;
5323
5324         switch (evt_code) {
5325         case LPFC_TRAILER_CODE_LINK:
5326                 switch (speed_code) {
5327                 case LPFC_ASYNC_LINK_SPEED_ZERO:
5328                         port_speed = 0;
5329                         break;
5330                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
5331                         port_speed = 10;
5332                         break;
5333                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
5334                         port_speed = 100;
5335                         break;
5336                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
5337                         port_speed = 1000;
5338                         break;
5339                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
5340                         port_speed = 10000;
5341                         break;
5342                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
5343                         port_speed = 20000;
5344                         break;
5345                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
5346                         port_speed = 25000;
5347                         break;
5348                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
5349                         port_speed = 40000;
5350                         break;
5351                 case LPFC_ASYNC_LINK_SPEED_100GBPS:
5352                         port_speed = 100000;
5353                         break;
5354                 default:
5355                         port_speed = 0;
5356                 }
5357                 break;
5358         case LPFC_TRAILER_CODE_FC:
5359                 switch (speed_code) {
5360                 case LPFC_FC_LA_SPEED_UNKNOWN:
5361                         port_speed = 0;
5362                         break;
5363                 case LPFC_FC_LA_SPEED_1G:
5364                         port_speed = 1000;
5365                         break;
5366                 case LPFC_FC_LA_SPEED_2G:
5367                         port_speed = 2000;
5368                         break;
5369                 case LPFC_FC_LA_SPEED_4G:
5370                         port_speed = 4000;
5371                         break;
5372                 case LPFC_FC_LA_SPEED_8G:
5373                         port_speed = 8000;
5374                         break;
5375                 case LPFC_FC_LA_SPEED_10G:
5376                         port_speed = 10000;
5377                         break;
5378                 case LPFC_FC_LA_SPEED_16G:
5379                         port_speed = 16000;
5380                         break;
5381                 case LPFC_FC_LA_SPEED_32G:
5382                         port_speed = 32000;
5383                         break;
5384                 case LPFC_FC_LA_SPEED_64G:
5385                         port_speed = 64000;
5386                         break;
5387                 case LPFC_FC_LA_SPEED_128G:
5388                         port_speed = 128000;
5389                         break;
5390                 case LPFC_FC_LA_SPEED_256G:
5391                         port_speed = 256000;
5392                         break;
5393                 default:
5394                         port_speed = 0;
5395                 }
5396                 break;
5397         default:
5398                 port_speed = 0;
5399         }
5400         return port_speed;
5401 }
5402
5403 /**
5404  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
5405  * @phba: pointer to lpfc hba data structure.
5406  * @acqe_link: pointer to the async link completion queue entry.
5407  *
5408  * This routine is to handle the SLI4 asynchronous FCoE link event.
5409  **/
5410 static void
5411 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
5412                          struct lpfc_acqe_link *acqe_link)
5413 {
5414         LPFC_MBOXQ_t *pmb;
5415         MAILBOX_t *mb;
5416         struct lpfc_mbx_read_top *la;
5417         uint8_t att_type;
5418         int rc;
5419
5420         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
5421         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
5422                 return;
5423         phba->fcoe_eventtag = acqe_link->event_tag;
5424         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5425         if (!pmb) {
5426                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5427                                 "0395 The mboxq allocation failed\n");
5428                 return;
5429         }
5430
5431         rc = lpfc_mbox_rsrc_prep(phba, pmb);
5432         if (rc) {
5433                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5434                                 "0396 mailbox allocation failed\n");
5435                 goto out_free_pmb;
5436         }
5437
5438         /* Cleanup any outstanding ELS commands */
5439         lpfc_els_flush_all_cmd(phba);
5440
5441         /* Block ELS IOCBs until we have done process link event */
5442         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5443
5444         /* Update link event statistics */
5445         phba->sli.slistat.link_event++;
5446
5447         /* Create lpfc_handle_latt mailbox command from link ACQE */
5448         lpfc_read_topology(phba, pmb, pmb->ctx_buf);
5449         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5450         pmb->vport = phba->pport;
5451
5452         /* Keep the link status for extra SLI4 state machine reference */
5453         phba->sli4_hba.link_state.speed =
5454                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
5455                                 bf_get(lpfc_acqe_link_speed, acqe_link));
5456         phba->sli4_hba.link_state.duplex =
5457                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
5458         phba->sli4_hba.link_state.status =
5459                                 bf_get(lpfc_acqe_link_status, acqe_link);
5460         phba->sli4_hba.link_state.type =
5461                                 bf_get(lpfc_acqe_link_type, acqe_link);
5462         phba->sli4_hba.link_state.number =
5463                                 bf_get(lpfc_acqe_link_number, acqe_link);
5464         phba->sli4_hba.link_state.fault =
5465                                 bf_get(lpfc_acqe_link_fault, acqe_link);
5466         phba->sli4_hba.link_state.logical_speed =
5467                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
5468
5469         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5470                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
5471                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
5472                         "Logical speed:%dMbps Fault:%d\n",
5473                         phba->sli4_hba.link_state.speed,
5474                         phba->sli4_hba.link_state.topology,
5475                         phba->sli4_hba.link_state.status,
5476                         phba->sli4_hba.link_state.type,
5477                         phba->sli4_hba.link_state.number,
5478                         phba->sli4_hba.link_state.logical_speed,
5479                         phba->sli4_hba.link_state.fault);
5480         /*
5481          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
5482          * topology info. Note: Optional for non FC-AL ports.
5483          */
5484         if (!test_bit(HBA_FCOE_MODE, &phba->hba_flag)) {
5485                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5486                 if (rc == MBX_NOT_FINISHED)
5487                         goto out_free_pmb;
5488                 return;
5489         }
5490         /*
5491          * For FCoE Mode: fill in all the topology information we need and call
5492          * the READ_TOPOLOGY completion routine to continue without actually
5493          * sending the READ_TOPOLOGY mailbox command to the port.
5494          */
5495         /* Initialize completion status */
5496         mb = &pmb->u.mb;
5497         mb->mbxStatus = MBX_SUCCESS;
5498
5499         /* Parse port fault information field */
5500         lpfc_sli4_parse_latt_fault(phba, acqe_link);
5501
5502         /* Parse and translate link attention fields */
5503         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5504         la->eventTag = acqe_link->event_tag;
5505         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5506         bf_set(lpfc_mbx_read_top_link_spd, la,
5507                (bf_get(lpfc_acqe_link_speed, acqe_link)));
5508
5509         /* Fake the following irrelevant fields */
5510         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5511         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5512         bf_set(lpfc_mbx_read_top_il, la, 0);
5513         bf_set(lpfc_mbx_read_top_pb, la, 0);
5514         bf_set(lpfc_mbx_read_top_fa, la, 0);
5515         bf_set(lpfc_mbx_read_top_mm, la, 0);
5516
5517         /* Invoke the lpfc_handle_latt mailbox command callback function */
5518         lpfc_mbx_cmpl_read_topology(phba, pmb);
5519
5520         return;
5521
5522 out_free_pmb:
5523         lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
5524 }
5525
5526 /**
5527  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5528  * topology.
5529  * @phba: pointer to lpfc hba data structure.
5530  * @speed_code: asynchronous event link speed code.
5531  *
5532  * This routine is to parse the giving SLI4 async event link speed code into
5533  * value of Read topology link speed.
5534  *
5535  * Return: link speed in terms of Read topology.
5536  **/
5537 static uint8_t
5538 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5539 {
5540         uint8_t port_speed;
5541
5542         switch (speed_code) {
5543         case LPFC_FC_LA_SPEED_1G:
5544                 port_speed = LPFC_LINK_SPEED_1GHZ;
5545                 break;
5546         case LPFC_FC_LA_SPEED_2G:
5547                 port_speed = LPFC_LINK_SPEED_2GHZ;
5548                 break;
5549         case LPFC_FC_LA_SPEED_4G:
5550                 port_speed = LPFC_LINK_SPEED_4GHZ;
5551                 break;
5552         case LPFC_FC_LA_SPEED_8G:
5553                 port_speed = LPFC_LINK_SPEED_8GHZ;
5554                 break;
5555         case LPFC_FC_LA_SPEED_16G:
5556                 port_speed = LPFC_LINK_SPEED_16GHZ;
5557                 break;
5558         case LPFC_FC_LA_SPEED_32G:
5559                 port_speed = LPFC_LINK_SPEED_32GHZ;
5560                 break;
5561         case LPFC_FC_LA_SPEED_64G:
5562                 port_speed = LPFC_LINK_SPEED_64GHZ;
5563                 break;
5564         case LPFC_FC_LA_SPEED_128G:
5565                 port_speed = LPFC_LINK_SPEED_128GHZ;
5566                 break;
5567         case LPFC_FC_LA_SPEED_256G:
5568                 port_speed = LPFC_LINK_SPEED_256GHZ;
5569                 break;
5570         default:
5571                 port_speed = 0;
5572                 break;
5573         }
5574
5575         return port_speed;
5576 }
5577
5578 void
5579 lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba)
5580 {
5581         if (!phba->rx_monitor) {
5582                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5583                                 "4411 Rx Monitor Info is empty.\n");
5584         } else {
5585                 lpfc_rx_monitor_report(phba, phba->rx_monitor, NULL, 0,
5586                                        LPFC_MAX_RXMONITOR_DUMP);
5587         }
5588 }
5589
5590 /**
5591  * lpfc_cgn_update_stat - Save data into congestion stats buffer
5592  * @phba: pointer to lpfc hba data structure.
5593  * @dtag: FPIN descriptor received
5594  *
5595  * Increment the FPIN received counter/time when it happens.
5596  */
5597 void
5598 lpfc_cgn_update_stat(struct lpfc_hba *phba, uint32_t dtag)
5599 {
5600         struct lpfc_cgn_info *cp;
5601         u32 value;
5602
5603         /* Make sure we have a congestion info buffer */
5604         if (!phba->cgn_i)
5605                 return;
5606         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5607
5608         /* Update congestion statistics */
5609         switch (dtag) {
5610         case ELS_DTAG_LNK_INTEGRITY:
5611                 le32_add_cpu(&cp->link_integ_notification, 1);
5612                 lpfc_cgn_update_tstamp(phba, &cp->stat_lnk);
5613                 break;
5614         case ELS_DTAG_DELIVERY:
5615                 le32_add_cpu(&cp->delivery_notification, 1);
5616                 lpfc_cgn_update_tstamp(phba, &cp->stat_delivery);
5617                 break;
5618         case ELS_DTAG_PEER_CONGEST:
5619                 le32_add_cpu(&cp->cgn_peer_notification, 1);
5620                 lpfc_cgn_update_tstamp(phba, &cp->stat_peer);
5621                 break;
5622         case ELS_DTAG_CONGESTION:
5623                 le32_add_cpu(&cp->cgn_notification, 1);
5624                 lpfc_cgn_update_tstamp(phba, &cp->stat_fpin);
5625         }
5626         if (phba->cgn_fpin_frequency &&
5627             phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5628                 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5629                 cp->cgn_stat_npm = value;
5630         }
5631
5632         value = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5633                                     LPFC_CGN_CRC32_SEED);
5634         cp->cgn_info_crc = cpu_to_le32(value);
5635 }
5636
5637 /**
5638  * lpfc_cgn_update_tstamp - Update cmf timestamp
5639  * @phba: pointer to lpfc hba data structure.
5640  * @ts: structure to write the timestamp to.
5641  */
5642 void
5643 lpfc_cgn_update_tstamp(struct lpfc_hba *phba, struct lpfc_cgn_ts *ts)
5644 {
5645         struct timespec64 cur_time;
5646         struct tm tm_val;
5647
5648         ktime_get_real_ts64(&cur_time);
5649         time64_to_tm(cur_time.tv_sec, 0, &tm_val);
5650
5651         ts->month = tm_val.tm_mon + 1;
5652         ts->day = tm_val.tm_mday;
5653         ts->year = tm_val.tm_year - 100;
5654         ts->hour = tm_val.tm_hour;
5655         ts->minute = tm_val.tm_min;
5656         ts->second = tm_val.tm_sec;
5657
5658         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5659                         "2646 Updated CMF timestamp : "
5660                         "%u/%u/%u %u:%u:%u\n",
5661                         ts->day, ts->month,
5662                         ts->year, ts->hour,
5663                         ts->minute, ts->second);
5664 }
5665
5666 /**
5667  * lpfc_cmf_stats_timer - Save data into registered congestion buffer
5668  * @timer: Timer cookie to access lpfc private data
5669  *
5670  * Save the congestion event data every minute.
5671  * On the hour collapse all the minute data into hour data. Every day
5672  * collapse all the hour data into daily data. Separate driver
5673  * and fabrc congestion event counters that will be saved out
5674  * to the registered congestion buffer every minute.
5675  */
5676 static enum hrtimer_restart
5677 lpfc_cmf_stats_timer(struct hrtimer *timer)
5678 {
5679         struct lpfc_hba *phba;
5680         struct lpfc_cgn_info *cp;
5681         uint32_t i, index;
5682         uint16_t value, mvalue;
5683         uint64_t bps;
5684         uint32_t mbps;
5685         uint32_t dvalue, wvalue, lvalue, avalue;
5686         uint64_t latsum;
5687         __le16 *ptr;
5688         __le32 *lptr;
5689         __le16 *mptr;
5690
5691         phba = container_of(timer, struct lpfc_hba, cmf_stats_timer);
5692         /* Make sure we have a congestion info buffer */
5693         if (!phba->cgn_i)
5694                 return HRTIMER_NORESTART;
5695         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5696
5697         phba->cgn_evt_timestamp = jiffies +
5698                         msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
5699         phba->cgn_evt_minute++;
5700
5701         /* We should get to this point in the routine on 1 minute intervals */
5702         lpfc_cgn_update_tstamp(phba, &cp->base_time);
5703
5704         if (phba->cgn_fpin_frequency &&
5705             phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5706                 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5707                 cp->cgn_stat_npm = value;
5708         }
5709
5710         /* Read and clear the latency counters for this minute */
5711         lvalue = atomic_read(&phba->cgn_latency_evt_cnt);
5712         latsum = atomic64_read(&phba->cgn_latency_evt);
5713         atomic_set(&phba->cgn_latency_evt_cnt, 0);
5714         atomic64_set(&phba->cgn_latency_evt, 0);
5715
5716         /* We need to store MB/sec bandwidth in the congestion information.
5717          * block_cnt is count of 512 byte blocks for the entire minute,
5718          * bps will get bytes per sec before finally converting to MB/sec.
5719          */
5720         bps = div_u64(phba->rx_block_cnt, LPFC_SEC_MIN) * 512;
5721         phba->rx_block_cnt = 0;
5722         mvalue = bps / (1024 * 1024); /* convert to MB/sec */
5723
5724         /* Every minute */
5725         /* cgn parameters */
5726         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
5727         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
5728         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
5729         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
5730
5731         /* Fill in default LUN qdepth */
5732         value = (uint16_t)(phba->pport->cfg_lun_queue_depth);
5733         cp->cgn_lunq = cpu_to_le16(value);
5734
5735         /* Record congestion buffer info - every minute
5736          * cgn_driver_evt_cnt (Driver events)
5737          * cgn_fabric_warn_cnt (Congestion Warnings)
5738          * cgn_latency_evt_cnt / cgn_latency_evt (IO Latency)
5739          * cgn_fabric_alarm_cnt (Congestion Alarms)
5740          */
5741         index = ++cp->cgn_index_minute;
5742         if (cp->cgn_index_minute == LPFC_MIN_HOUR) {
5743                 cp->cgn_index_minute = 0;
5744                 index = 0;
5745         }
5746
5747         /* Get the number of driver events in this sample and reset counter */
5748         dvalue = atomic_read(&phba->cgn_driver_evt_cnt);
5749         atomic_set(&phba->cgn_driver_evt_cnt, 0);
5750
5751         /* Get the number of warning events - FPIN and Signal for this minute */
5752         wvalue = 0;
5753         if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) ||
5754             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5755             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5756                 wvalue = atomic_read(&phba->cgn_fabric_warn_cnt);
5757         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
5758
5759         /* Get the number of alarm events - FPIN and Signal for this minute */
5760         avalue = 0;
5761         if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) ||
5762             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5763                 avalue = atomic_read(&phba->cgn_fabric_alarm_cnt);
5764         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
5765
5766         /* Collect the driver, warning, alarm and latency counts for this
5767          * minute into the driver congestion buffer.
5768          */
5769         ptr = &cp->cgn_drvr_min[index];
5770         value = (uint16_t)dvalue;
5771         *ptr = cpu_to_le16(value);
5772
5773         ptr = &cp->cgn_warn_min[index];
5774         value = (uint16_t)wvalue;
5775         *ptr = cpu_to_le16(value);
5776
5777         ptr = &cp->cgn_alarm_min[index];
5778         value = (uint16_t)avalue;
5779         *ptr = cpu_to_le16(value);
5780
5781         lptr = &cp->cgn_latency_min[index];
5782         if (lvalue) {
5783                 lvalue = (uint32_t)div_u64(latsum, lvalue);
5784                 *lptr = cpu_to_le32(lvalue);
5785         } else {
5786                 *lptr = 0;
5787         }
5788
5789         /* Collect the bandwidth value into the driver's congesion buffer. */
5790         mptr = &cp->cgn_bw_min[index];
5791         *mptr = cpu_to_le16(mvalue);
5792
5793         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5794                         "2418 Congestion Info - minute (%d): %d %d %d %d %d\n",
5795                         index, dvalue, wvalue, *lptr, mvalue, avalue);
5796
5797         /* Every hour */
5798         if ((phba->cgn_evt_minute % LPFC_MIN_HOUR) == 0) {
5799                 /* Record congestion buffer info - every hour
5800                  * Collapse all minutes into an hour
5801                  */
5802                 index = ++cp->cgn_index_hour;
5803                 if (cp->cgn_index_hour == LPFC_HOUR_DAY) {
5804                         cp->cgn_index_hour = 0;
5805                         index = 0;
5806                 }
5807
5808                 dvalue = 0;
5809                 wvalue = 0;
5810                 lvalue = 0;
5811                 avalue = 0;
5812                 mvalue = 0;
5813                 mbps = 0;
5814                 for (i = 0; i < LPFC_MIN_HOUR; i++) {
5815                         dvalue += le16_to_cpu(cp->cgn_drvr_min[i]);
5816                         wvalue += le16_to_cpu(cp->cgn_warn_min[i]);
5817                         lvalue += le32_to_cpu(cp->cgn_latency_min[i]);
5818                         mbps += le16_to_cpu(cp->cgn_bw_min[i]);
5819                         avalue += le16_to_cpu(cp->cgn_alarm_min[i]);
5820                 }
5821                 if (lvalue)             /* Avg of latency averages */
5822                         lvalue /= LPFC_MIN_HOUR;
5823                 if (mbps)               /* Avg of Bandwidth averages */
5824                         mvalue = mbps / LPFC_MIN_HOUR;
5825
5826                 lptr = &cp->cgn_drvr_hr[index];
5827                 *lptr = cpu_to_le32(dvalue);
5828                 lptr = &cp->cgn_warn_hr[index];
5829                 *lptr = cpu_to_le32(wvalue);
5830                 lptr = &cp->cgn_latency_hr[index];
5831                 *lptr = cpu_to_le32(lvalue);
5832                 mptr = &cp->cgn_bw_hr[index];
5833                 *mptr = cpu_to_le16(mvalue);
5834                 lptr = &cp->cgn_alarm_hr[index];
5835                 *lptr = cpu_to_le32(avalue);
5836
5837                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5838                                 "2419 Congestion Info - hour "
5839                                 "(%d): %d %d %d %d %d\n",
5840                                 index, dvalue, wvalue, lvalue, mvalue, avalue);
5841         }
5842
5843         /* Every day */
5844         if ((phba->cgn_evt_minute % LPFC_MIN_DAY) == 0) {
5845                 /* Record congestion buffer info - every hour
5846                  * Collapse all hours into a day. Rotate days
5847                  * after LPFC_MAX_CGN_DAYS.
5848                  */
5849                 index = ++cp->cgn_index_day;
5850                 if (cp->cgn_index_day == LPFC_MAX_CGN_DAYS) {
5851                         cp->cgn_index_day = 0;
5852                         index = 0;
5853                 }
5854
5855                 dvalue = 0;
5856                 wvalue = 0;
5857                 lvalue = 0;
5858                 mvalue = 0;
5859                 mbps = 0;
5860                 avalue = 0;
5861                 for (i = 0; i < LPFC_HOUR_DAY; i++) {
5862                         dvalue += le32_to_cpu(cp->cgn_drvr_hr[i]);
5863                         wvalue += le32_to_cpu(cp->cgn_warn_hr[i]);
5864                         lvalue += le32_to_cpu(cp->cgn_latency_hr[i]);
5865                         mbps += le16_to_cpu(cp->cgn_bw_hr[i]);
5866                         avalue += le32_to_cpu(cp->cgn_alarm_hr[i]);
5867                 }
5868                 if (lvalue)             /* Avg of latency averages */
5869                         lvalue /= LPFC_HOUR_DAY;
5870                 if (mbps)               /* Avg of Bandwidth averages */
5871                         mvalue = mbps / LPFC_HOUR_DAY;
5872
5873                 lptr = &cp->cgn_drvr_day[index];
5874                 *lptr = cpu_to_le32(dvalue);
5875                 lptr = &cp->cgn_warn_day[index];
5876                 *lptr = cpu_to_le32(wvalue);
5877                 lptr = &cp->cgn_latency_day[index];
5878                 *lptr = cpu_to_le32(lvalue);
5879                 mptr = &cp->cgn_bw_day[index];
5880                 *mptr = cpu_to_le16(mvalue);
5881                 lptr = &cp->cgn_alarm_day[index];
5882                 *lptr = cpu_to_le32(avalue);
5883
5884                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5885                                 "2420 Congestion Info - daily (%d): "
5886                                 "%d %d %d %d %d\n",
5887                                 index, dvalue, wvalue, lvalue, mvalue, avalue);
5888         }
5889
5890         /* Use the frequency found in the last rcv'ed FPIN */
5891         value = phba->cgn_fpin_frequency;
5892         cp->cgn_warn_freq = cpu_to_le16(value);
5893         cp->cgn_alarm_freq = cpu_to_le16(value);
5894
5895         lvalue = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5896                                      LPFC_CGN_CRC32_SEED);
5897         cp->cgn_info_crc = cpu_to_le32(lvalue);
5898
5899         hrtimer_forward_now(timer, ktime_set(0, LPFC_SEC_MIN * NSEC_PER_SEC));
5900
5901         return HRTIMER_RESTART;
5902 }
5903
5904 /**
5905  * lpfc_calc_cmf_latency - latency from start of rxate timer interval
5906  * @phba: The Hba for which this call is being executed.
5907  *
5908  * The routine calculates the latency from the beginning of the CMF timer
5909  * interval to the current point in time. It is called from IO completion
5910  * when we exceed our Bandwidth limitation for the time interval.
5911  */
5912 uint32_t
5913 lpfc_calc_cmf_latency(struct lpfc_hba *phba)
5914 {
5915         struct timespec64 cmpl_time;
5916         uint32_t msec = 0;
5917
5918         ktime_get_real_ts64(&cmpl_time);
5919
5920         /* This routine works on a ms granularity so sec and usec are
5921          * converted accordingly.
5922          */
5923         if (cmpl_time.tv_sec == phba->cmf_latency.tv_sec) {
5924                 msec = (cmpl_time.tv_nsec - phba->cmf_latency.tv_nsec) /
5925                         NSEC_PER_MSEC;
5926         } else {
5927                 if (cmpl_time.tv_nsec >= phba->cmf_latency.tv_nsec) {
5928                         msec = (cmpl_time.tv_sec -
5929                                 phba->cmf_latency.tv_sec) * MSEC_PER_SEC;
5930                         msec += ((cmpl_time.tv_nsec -
5931                                   phba->cmf_latency.tv_nsec) / NSEC_PER_MSEC);
5932                 } else {
5933                         msec = (cmpl_time.tv_sec - phba->cmf_latency.tv_sec -
5934                                 1) * MSEC_PER_SEC;
5935                         msec += (((NSEC_PER_SEC - phba->cmf_latency.tv_nsec) +
5936                                  cmpl_time.tv_nsec) / NSEC_PER_MSEC);
5937                 }
5938         }
5939         return msec;
5940 }
5941
5942 /**
5943  * lpfc_cmf_timer -  This is the timer function for one congestion
5944  * rate interval.
5945  * @timer: Pointer to the high resolution timer that expired
5946  */
5947 static enum hrtimer_restart
5948 lpfc_cmf_timer(struct hrtimer *timer)
5949 {
5950         struct lpfc_hba *phba = container_of(timer, struct lpfc_hba,
5951                                              cmf_timer);
5952         struct rx_info_entry entry;
5953         uint32_t io_cnt;
5954         uint32_t busy, max_read;
5955         uint64_t total, rcv, lat, mbpi, extra, cnt;
5956         int timer_interval = LPFC_CMF_INTERVAL;
5957         uint32_t ms;
5958         struct lpfc_cgn_stat *cgs;
5959         int cpu;
5960
5961         /* Only restart the timer if congestion mgmt is on */
5962         if (phba->cmf_active_mode == LPFC_CFG_OFF ||
5963             !phba->cmf_latency.tv_sec) {
5964                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5965                                 "6224 CMF timer exit: %d %lld\n",
5966                                 phba->cmf_active_mode,
5967                                 (uint64_t)phba->cmf_latency.tv_sec);
5968                 return HRTIMER_NORESTART;
5969         }
5970
5971         /* If pport is not ready yet, just exit and wait for
5972          * the next timer cycle to hit.
5973          */
5974         if (!phba->pport)
5975                 goto skip;
5976
5977         /* Do not block SCSI IO while in the timer routine since
5978          * total_bytes will be cleared
5979          */
5980         atomic_set(&phba->cmf_stop_io, 1);
5981
5982         /* First we need to calculate the actual ms between
5983          * the last timer interrupt and this one. We ask for
5984          * LPFC_CMF_INTERVAL, however the actual time may
5985          * vary depending on system overhead.
5986          */
5987         ms = lpfc_calc_cmf_latency(phba);
5988
5989
5990         /* Immediately after we calculate the time since the last
5991          * timer interrupt, set the start time for the next
5992          * interrupt
5993          */
5994         ktime_get_real_ts64(&phba->cmf_latency);
5995
5996         phba->cmf_link_byte_count =
5997                 div_u64(phba->cmf_max_line_rate * LPFC_CMF_INTERVAL, 1000);
5998
5999         /* Collect all the stats from the prior timer interval */
6000         total = 0;
6001         io_cnt = 0;
6002         lat = 0;
6003         rcv = 0;
6004         for_each_present_cpu(cpu) {
6005                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
6006                 total += atomic64_xchg(&cgs->total_bytes, 0);
6007                 io_cnt += atomic_xchg(&cgs->rx_io_cnt, 0);
6008                 lat += atomic64_xchg(&cgs->rx_latency, 0);
6009                 rcv += atomic64_xchg(&cgs->rcv_bytes, 0);
6010         }
6011
6012         /* Before we issue another CMF_SYNC_WQE, retrieve the BW
6013          * returned from the last CMF_SYNC_WQE issued, from
6014          * cmf_last_sync_bw. This will be the target BW for
6015          * this next timer interval.
6016          */
6017         if (phba->cmf_active_mode == LPFC_CFG_MANAGED &&
6018             phba->link_state != LPFC_LINK_DOWN &&
6019             test_bit(HBA_SETUP, &phba->hba_flag)) {
6020                 mbpi = phba->cmf_last_sync_bw;
6021                 phba->cmf_last_sync_bw = 0;
6022                 extra = 0;
6023
6024                 /* Calculate any extra bytes needed to account for the
6025                  * timer accuracy. If we are less than LPFC_CMF_INTERVAL
6026                  * calculate the adjustment needed for total to reflect
6027                  * a full LPFC_CMF_INTERVAL.
6028                  */
6029                 if (ms && ms < LPFC_CMF_INTERVAL) {
6030                         cnt = div_u64(total, ms); /* bytes per ms */
6031                         cnt *= LPFC_CMF_INTERVAL; /* what total should be */
6032                         extra = cnt - total;
6033                 }
6034                 lpfc_issue_cmf_sync_wqe(phba, LPFC_CMF_INTERVAL, total + extra);
6035         } else {
6036                 /* For Monitor mode or link down we want mbpi
6037                  * to be the full link speed
6038                  */
6039                 mbpi = phba->cmf_link_byte_count;
6040                 extra = 0;
6041         }
6042         phba->cmf_timer_cnt++;
6043
6044         if (io_cnt) {
6045                 /* Update congestion info buffer latency in us */
6046                 atomic_add(io_cnt, &phba->cgn_latency_evt_cnt);
6047                 atomic64_add(lat, &phba->cgn_latency_evt);
6048         }
6049         busy = atomic_xchg(&phba->cmf_busy, 0);
6050         max_read = atomic_xchg(&phba->rx_max_read_cnt, 0);
6051
6052         /* Calculate MBPI for the next timer interval */
6053         if (mbpi) {
6054                 if (mbpi > phba->cmf_link_byte_count ||
6055                     phba->cmf_active_mode == LPFC_CFG_MONITOR)
6056                         mbpi = phba->cmf_link_byte_count;
6057
6058                 /* Change max_bytes_per_interval to what the prior
6059                  * CMF_SYNC_WQE cmpl indicated.
6060                  */
6061                 if (mbpi != phba->cmf_max_bytes_per_interval)
6062                         phba->cmf_max_bytes_per_interval = mbpi;
6063         }
6064
6065         /* Save rxmonitor information for debug */
6066         if (phba->rx_monitor) {
6067                 entry.total_bytes = total;
6068                 entry.cmf_bytes = total + extra;
6069                 entry.rcv_bytes = rcv;
6070                 entry.cmf_busy = busy;
6071                 entry.cmf_info = phba->cmf_active_info;
6072                 if (io_cnt) {
6073                         entry.avg_io_latency = div_u64(lat, io_cnt);
6074                         entry.avg_io_size = div_u64(rcv, io_cnt);
6075                 } else {
6076                         entry.avg_io_latency = 0;
6077                         entry.avg_io_size = 0;
6078                 }
6079                 entry.max_read_cnt = max_read;
6080                 entry.io_cnt = io_cnt;
6081                 entry.max_bytes_per_interval = mbpi;
6082                 if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
6083                         entry.timer_utilization = phba->cmf_last_ts;
6084                 else
6085                         entry.timer_utilization = ms;
6086                 entry.timer_interval = ms;
6087                 phba->cmf_last_ts = 0;
6088
6089                 lpfc_rx_monitor_record(phba->rx_monitor, &entry);
6090         }
6091
6092         if (phba->cmf_active_mode == LPFC_CFG_MONITOR) {
6093                 /* If Monitor mode, check if we are oversubscribed
6094                  * against the full line rate.
6095                  */
6096                 if (mbpi && total > mbpi)
6097                         atomic_inc(&phba->cgn_driver_evt_cnt);
6098         }
6099         phba->rx_block_cnt += div_u64(rcv, 512);  /* save 512 byte block cnt */
6100
6101         /* Since total_bytes has already been zero'ed, its okay to unblock
6102          * after max_bytes_per_interval is setup.
6103          */
6104         if (atomic_xchg(&phba->cmf_bw_wait, 0))
6105                 queue_work(phba->wq, &phba->unblock_request_work);
6106
6107         /* SCSI IO is now unblocked */
6108         atomic_set(&phba->cmf_stop_io, 0);
6109
6110 skip:
6111         hrtimer_forward_now(timer,
6112                             ktime_set(0, timer_interval * NSEC_PER_MSEC));
6113         return HRTIMER_RESTART;
6114 }
6115
6116 #define trunk_link_status(__idx)\
6117         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6118                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
6119                 "Link up" : "Link down") : "NA"
6120 /* Did port __idx reported an error */
6121 #define trunk_port_fault(__idx)\
6122         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6123                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
6124
6125 static void
6126 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
6127                               struct lpfc_acqe_fc_la *acqe_fc)
6128 {
6129         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
6130         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
6131         u8 cnt = 0;
6132
6133         phba->sli4_hba.link_state.speed =
6134                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6135                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6136
6137         phba->sli4_hba.link_state.logical_speed =
6138                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6139         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
6140         phba->fc_linkspeed =
6141                  lpfc_async_link_speed_to_read_top(
6142                                 phba,
6143                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6144
6145         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
6146                 phba->trunk_link.link0.state =
6147                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
6148                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6149                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
6150                 cnt++;
6151         }
6152         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
6153                 phba->trunk_link.link1.state =
6154                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
6155                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6156                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
6157                 cnt++;
6158         }
6159         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
6160                 phba->trunk_link.link2.state =
6161                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
6162                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6163                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
6164                 cnt++;
6165         }
6166         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
6167                 phba->trunk_link.link3.state =
6168                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
6169                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6170                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
6171                 cnt++;
6172         }
6173
6174         if (cnt)
6175                 phba->trunk_link.phy_lnk_speed =
6176                         phba->sli4_hba.link_state.logical_speed / (cnt * 1000);
6177         else
6178                 phba->trunk_link.phy_lnk_speed = LPFC_LINK_SPEED_UNKNOWN;
6179
6180         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6181                         "2910 Async FC Trunking Event - Speed:%d\n"
6182                         "\tLogical speed:%d "
6183                         "port0: %s port1: %s port2: %s port3: %s\n",
6184                         phba->sli4_hba.link_state.speed,
6185                         phba->sli4_hba.link_state.logical_speed,
6186                         trunk_link_status(0), trunk_link_status(1),
6187                         trunk_link_status(2), trunk_link_status(3));
6188
6189         if (phba->cmf_active_mode != LPFC_CFG_OFF)
6190                 lpfc_cmf_signal_init(phba);
6191
6192         if (port_fault)
6193                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6194                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
6195                                 /*
6196                                  * SLI-4: We have only 0xA error codes
6197                                  * defined as of now. print an appropriate
6198                                  * message in case driver needs to be updated.
6199                                  */
6200                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
6201                                 "UNDEFINED. update driver." : trunk_errmsg[err],
6202                                 trunk_port_fault(0), trunk_port_fault(1),
6203                                 trunk_port_fault(2), trunk_port_fault(3));
6204 }
6205
6206
6207 /**
6208  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
6209  * @phba: pointer to lpfc hba data structure.
6210  * @acqe_fc: pointer to the async fc completion queue entry.
6211  *
6212  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
6213  * that the event was received and then issue a read_topology mailbox command so
6214  * that the rest of the driver will treat it the same as SLI3.
6215  **/
6216 static void
6217 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
6218 {
6219         LPFC_MBOXQ_t *pmb;
6220         MAILBOX_t *mb;
6221         struct lpfc_mbx_read_top *la;
6222         char *log_level;
6223         int rc;
6224
6225         if (bf_get(lpfc_trailer_type, acqe_fc) !=
6226             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
6227                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6228                                 "2895 Non FC link Event detected.(%d)\n",
6229                                 bf_get(lpfc_trailer_type, acqe_fc));
6230                 return;
6231         }
6232
6233         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6234             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
6235                 lpfc_update_trunk_link_status(phba, acqe_fc);
6236                 return;
6237         }
6238
6239         /* Keep the link status for extra SLI4 state machine reference */
6240         phba->sli4_hba.link_state.speed =
6241                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6242                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6243         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
6244         phba->sli4_hba.link_state.topology =
6245                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
6246         phba->sli4_hba.link_state.status =
6247                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
6248         phba->sli4_hba.link_state.type =
6249                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
6250         phba->sli4_hba.link_state.number =
6251                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
6252         phba->sli4_hba.link_state.fault =
6253                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
6254         phba->sli4_hba.link_state.link_status =
6255                                 bf_get(lpfc_acqe_fc_la_link_status, acqe_fc);
6256
6257         /*
6258          * Only select attention types need logical speed modification to what
6259          * was previously set.
6260          */
6261         if (phba->sli4_hba.link_state.status >= LPFC_FC_LA_TYPE_LINK_UP &&
6262             phba->sli4_hba.link_state.status < LPFC_FC_LA_TYPE_ACTIVATE_FAIL) {
6263                 if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6264                     LPFC_FC_LA_TYPE_LINK_DOWN)
6265                         phba->sli4_hba.link_state.logical_speed = 0;
6266                 else if (!phba->sli4_hba.conf_trunk)
6267                         phba->sli4_hba.link_state.logical_speed =
6268                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6269         }
6270
6271         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6272                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
6273                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
6274                         "%dMbps Fault:x%x Link Status:x%x\n",
6275                         phba->sli4_hba.link_state.speed,
6276                         phba->sli4_hba.link_state.topology,
6277                         phba->sli4_hba.link_state.status,
6278                         phba->sli4_hba.link_state.type,
6279                         phba->sli4_hba.link_state.number,
6280                         phba->sli4_hba.link_state.logical_speed,
6281                         phba->sli4_hba.link_state.fault,
6282                         phba->sli4_hba.link_state.link_status);
6283
6284         /*
6285          * The following attention types are informational only, providing
6286          * further details about link status.  Overwrite the value of
6287          * link_state.status appropriately.  No further action is required.
6288          */
6289         if (phba->sli4_hba.link_state.status >= LPFC_FC_LA_TYPE_ACTIVATE_FAIL) {
6290                 switch (phba->sli4_hba.link_state.status) {
6291                 case LPFC_FC_LA_TYPE_ACTIVATE_FAIL:
6292                         log_level = KERN_WARNING;
6293                         phba->sli4_hba.link_state.status =
6294                                         LPFC_FC_LA_TYPE_LINK_DOWN;
6295                         break;
6296                 case LPFC_FC_LA_TYPE_LINK_RESET_PRTCL_EVT:
6297                         /*
6298                          * During bb credit recovery establishment, receiving
6299                          * this attention type is normal.  Link Up attention
6300                          * type is expected to occur before this informational
6301                          * attention type so keep the Link Up status.
6302                          */
6303                         log_level = KERN_INFO;
6304                         phba->sli4_hba.link_state.status =
6305                                         LPFC_FC_LA_TYPE_LINK_UP;
6306                         break;
6307                 default:
6308                         log_level = KERN_INFO;
6309                         break;
6310                 }
6311                 lpfc_log_msg(phba, log_level, LOG_SLI,
6312                              "2992 Async FC event - Informational Link "
6313                              "Attention Type x%x\n",
6314                              bf_get(lpfc_acqe_fc_la_att_type, acqe_fc));
6315                 return;
6316         }
6317
6318         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6319         if (!pmb) {
6320                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6321                                 "2897 The mboxq allocation failed\n");
6322                 return;
6323         }
6324         rc = lpfc_mbox_rsrc_prep(phba, pmb);
6325         if (rc) {
6326                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6327                                 "2898 The mboxq prep failed\n");
6328                 goto out_free_pmb;
6329         }
6330
6331         /* Cleanup any outstanding ELS commands */
6332         lpfc_els_flush_all_cmd(phba);
6333
6334         /* Block ELS IOCBs until we have done process link event */
6335         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
6336
6337         /* Update link event statistics */
6338         phba->sli.slistat.link_event++;
6339
6340         /* Create lpfc_handle_latt mailbox command from link ACQE */
6341         lpfc_read_topology(phba, pmb, pmb->ctx_buf);
6342         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
6343         pmb->vport = phba->pport;
6344
6345         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
6346                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
6347
6348                 switch (phba->sli4_hba.link_state.status) {
6349                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
6350                         phba->link_flag |= LS_MDS_LINK_DOWN;
6351                         break;
6352                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
6353                         phba->link_flag |= LS_MDS_LOOPBACK;
6354                         break;
6355                 default:
6356                         break;
6357                 }
6358
6359                 /* Initialize completion status */
6360                 mb = &pmb->u.mb;
6361                 mb->mbxStatus = MBX_SUCCESS;
6362
6363                 /* Parse port fault information field */
6364                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
6365
6366                 /* Parse and translate link attention fields */
6367                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
6368                 la->eventTag = acqe_fc->event_tag;
6369
6370                 if (phba->sli4_hba.link_state.status ==
6371                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
6372                         bf_set(lpfc_mbx_read_top_att_type, la,
6373                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
6374                 } else {
6375                         bf_set(lpfc_mbx_read_top_att_type, la,
6376                                LPFC_FC_LA_TYPE_LINK_DOWN);
6377                 }
6378                 /* Invoke the mailbox command callback function */
6379                 lpfc_mbx_cmpl_read_topology(phba, pmb);
6380
6381                 return;
6382         }
6383
6384         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
6385         if (rc == MBX_NOT_FINISHED)
6386                 goto out_free_pmb;
6387         return;
6388
6389 out_free_pmb:
6390         lpfc_mbox_rsrc_cleanup(phba, pmb, MBOX_THD_UNLOCKED);
6391 }
6392
6393 /**
6394  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
6395  * @phba: pointer to lpfc hba data structure.
6396  * @acqe_sli: pointer to the async SLI completion queue entry.
6397  *
6398  * This routine is to handle the SLI4 asynchronous SLI events.
6399  **/
6400 static void
6401 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
6402 {
6403         char port_name;
6404         char message[128];
6405         uint8_t status;
6406         uint8_t evt_type;
6407         uint8_t operational = 0;
6408         struct temp_event temp_event_data;
6409         struct lpfc_acqe_misconfigured_event *misconfigured;
6410         struct lpfc_acqe_cgn_signal *cgn_signal;
6411         struct Scsi_Host  *shost;
6412         struct lpfc_vport **vports;
6413         int rc, i, cnt;
6414
6415         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
6416
6417         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6418                         "2901 Async SLI event - Type:%d, Event Data: x%08x "
6419                         "x%08x x%08x x%08x\n", evt_type,
6420                         acqe_sli->event_data1, acqe_sli->event_data2,
6421                         acqe_sli->event_data3, acqe_sli->trailer);
6422
6423         port_name = phba->Port[0];
6424         if (port_name == 0x00)
6425                 port_name = '?'; /* get port name is empty */
6426
6427         switch (evt_type) {
6428         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
6429                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6430                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6431                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6432
6433                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6434                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
6435                                 acqe_sli->event_data1, port_name);
6436
6437                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
6438                 shost = lpfc_shost_from_vport(phba->pport);
6439                 fc_host_post_vendor_event(shost, fc_get_event_number(),
6440                                           sizeof(temp_event_data),
6441                                           (char *)&temp_event_data,
6442                                           SCSI_NL_VID_TYPE_PCI
6443                                           | PCI_VENDOR_ID_EMULEX);
6444                 break;
6445         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
6446                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6447                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6448                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6449
6450                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI | LOG_LDS_EVENT,
6451                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
6452                                 acqe_sli->event_data1, port_name);
6453
6454                 shost = lpfc_shost_from_vport(phba->pport);
6455                 fc_host_post_vendor_event(shost, fc_get_event_number(),
6456                                           sizeof(temp_event_data),
6457                                           (char *)&temp_event_data,
6458                                           SCSI_NL_VID_TYPE_PCI
6459                                           | PCI_VENDOR_ID_EMULEX);
6460                 break;
6461         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
6462                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
6463                                         &acqe_sli->event_data1;
6464
6465                 /* fetch the status for this port */
6466                 switch (phba->sli4_hba.lnk_info.lnk_no) {
6467                 case LPFC_LINK_NUMBER_0:
6468                         status = bf_get(lpfc_sli_misconfigured_port0_state,
6469                                         &misconfigured->theEvent);
6470                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
6471                                         &misconfigured->theEvent);
6472                         break;
6473                 case LPFC_LINK_NUMBER_1:
6474                         status = bf_get(lpfc_sli_misconfigured_port1_state,
6475                                         &misconfigured->theEvent);
6476                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
6477                                         &misconfigured->theEvent);
6478                         break;
6479                 case LPFC_LINK_NUMBER_2:
6480                         status = bf_get(lpfc_sli_misconfigured_port2_state,
6481                                         &misconfigured->theEvent);
6482                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
6483                                         &misconfigured->theEvent);
6484                         break;
6485                 case LPFC_LINK_NUMBER_3:
6486                         status = bf_get(lpfc_sli_misconfigured_port3_state,
6487                                         &misconfigured->theEvent);
6488                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
6489                                         &misconfigured->theEvent);
6490                         break;
6491                 default:
6492                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6493                                         "3296 "
6494                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
6495                                         "event: Invalid link %d",
6496                                         phba->sli4_hba.lnk_info.lnk_no);
6497                         return;
6498                 }
6499
6500                 /* Skip if optic state unchanged */
6501                 if (phba->sli4_hba.lnk_info.optic_state == status)
6502                         return;
6503
6504                 switch (status) {
6505                 case LPFC_SLI_EVENT_STATUS_VALID:
6506                         sprintf(message, "Physical Link is functional");
6507                         break;
6508                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
6509                         sprintf(message, "Optics faulted/incorrectly "
6510                                 "installed/not installed - Reseat optics, "
6511                                 "if issue not resolved, replace.");
6512                         break;
6513                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
6514                         sprintf(message,
6515                                 "Optics of two types installed - Remove one "
6516                                 "optic or install matching pair of optics.");
6517                         break;
6518                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
6519                         sprintf(message, "Incompatible optics - Replace with "
6520                                 "compatible optics for card to function.");
6521                         break;
6522                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
6523                         sprintf(message, "Unqualified optics - Replace with "
6524                                 "Avago optics for Warranty and Technical "
6525                                 "Support - Link is%s operational",
6526                                 (operational) ? " not" : "");
6527                         break;
6528                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
6529                         sprintf(message, "Uncertified optics - Replace with "
6530                                 "Avago-certified optics to enable link "
6531                                 "operation - Link is%s operational",
6532                                 (operational) ? " not" : "");
6533                         break;
6534                 default:
6535                         /* firmware is reporting a status we don't know about */
6536                         sprintf(message, "Unknown event status x%02x", status);
6537                         break;
6538                 }
6539
6540                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
6541                 rc = lpfc_sli4_read_config(phba);
6542                 if (rc) {
6543                         phba->lmt = 0;
6544                         lpfc_printf_log(phba, KERN_ERR,
6545                                         LOG_TRACE_EVENT,
6546                                         "3194 Unable to retrieve supported "
6547                                         "speeds, rc = 0x%x\n", rc);
6548                 }
6549                 rc = lpfc_sli4_refresh_params(phba);
6550                 if (rc) {
6551                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6552                                         "3174 Unable to update pls support, "
6553                                         "rc x%x\n", rc);
6554                 }
6555                 vports = lpfc_create_vport_work_array(phba);
6556                 if (vports != NULL) {
6557                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6558                                         i++) {
6559                                 shost = lpfc_shost_from_vport(vports[i]);
6560                                 lpfc_host_supported_speeds_set(shost);
6561                         }
6562                 }
6563                 lpfc_destroy_vport_work_array(phba, vports);
6564
6565                 phba->sli4_hba.lnk_info.optic_state = status;
6566                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6567                                 "3176 Port Name %c %s\n", port_name, message);
6568                 break;
6569         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
6570                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6571                                 "3192 Remote DPort Test Initiated - "
6572                                 "Event Data1:x%08x Event Data2: x%08x\n",
6573                                 acqe_sli->event_data1, acqe_sli->event_data2);
6574                 break;
6575         case LPFC_SLI_EVENT_TYPE_PORT_PARAMS_CHG:
6576                 /* Call FW to obtain active parms */
6577                 lpfc_sli4_cgn_parm_chg_evt(phba);
6578                 break;
6579         case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
6580                 /* Misconfigured WWN. Reports that the SLI Port is configured
6581                  * to use FA-WWN, but the attached device doesn’t support it.
6582                  * Event Data1 - N.A, Event Data2 - N.A
6583                  * This event only happens on the physical port.
6584                  */
6585                 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI | LOG_DISCOVERY,
6586                              "2699 Misconfigured FA-PWWN - Attached device "
6587                              "does not support FA-PWWN\n");
6588                 phba->sli4_hba.fawwpn_flag &= ~LPFC_FAWWPN_FABRIC;
6589                 memset(phba->pport->fc_portname.u.wwn, 0,
6590                        sizeof(struct lpfc_name));
6591                 break;
6592         case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
6593                 /* EEPROM failure. No driver action is required */
6594                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6595                              "2518 EEPROM failure - "
6596                              "Event Data1: x%08x Event Data2: x%08x\n",
6597                              acqe_sli->event_data1, acqe_sli->event_data2);
6598                 break;
6599         case LPFC_SLI_EVENT_TYPE_CGN_SIGNAL:
6600                 if (phba->cmf_active_mode == LPFC_CFG_OFF)
6601                         break;
6602                 cgn_signal = (struct lpfc_acqe_cgn_signal *)
6603                                         &acqe_sli->event_data1;
6604                 phba->cgn_acqe_cnt++;
6605
6606                 cnt = bf_get(lpfc_warn_acqe, cgn_signal);
6607                 atomic64_add(cnt, &phba->cgn_acqe_stat.warn);
6608                 atomic64_add(cgn_signal->alarm_cnt, &phba->cgn_acqe_stat.alarm);
6609
6610                 /* no threshold for CMF, even 1 signal will trigger an event */
6611
6612                 /* Alarm overrides warning, so check that first */
6613                 if (cgn_signal->alarm_cnt) {
6614                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6615                                 /* Keep track of alarm cnt for CMF_SYNC_WQE */
6616                                 atomic_add(cgn_signal->alarm_cnt,
6617                                            &phba->cgn_sync_alarm_cnt);
6618                         }
6619                 } else if (cnt) {
6620                         /* signal action needs to be taken */
6621                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
6622                             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6623                                 /* Keep track of warning cnt for CMF_SYNC_WQE */
6624                                 atomic_add(cnt, &phba->cgn_sync_warn_cnt);
6625                         }
6626                 }
6627                 break;
6628         case LPFC_SLI_EVENT_TYPE_RD_SIGNAL:
6629                 /* May be accompanied by a temperature event */
6630                 lpfc_printf_log(phba, KERN_INFO,
6631                                 LOG_SLI | LOG_LINK_EVENT | LOG_LDS_EVENT,
6632                                 "2902 Remote Degrade Signaling: x%08x x%08x "
6633                                 "x%08x\n",
6634                                 acqe_sli->event_data1, acqe_sli->event_data2,
6635                                 acqe_sli->event_data3);
6636                 break;
6637         case LPFC_SLI_EVENT_TYPE_RESET_CM_STATS:
6638                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
6639                                 "2905 Reset CM statistics\n");
6640                 lpfc_sli4_async_cmstat_evt(phba);
6641                 break;
6642         default:
6643                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6644                                 "3193 Unrecognized SLI event, type: 0x%x",
6645                                 evt_type);
6646                 break;
6647         }
6648 }
6649
6650 /**
6651  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
6652  * @vport: pointer to vport data structure.
6653  *
6654  * This routine is to perform Clear Virtual Link (CVL) on a vport in
6655  * response to a CVL event.
6656  *
6657  * Return the pointer to the ndlp with the vport if successful, otherwise
6658  * return NULL.
6659  **/
6660 static struct lpfc_nodelist *
6661 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
6662 {
6663         struct lpfc_nodelist *ndlp;
6664         struct Scsi_Host *shost;
6665         struct lpfc_hba *phba;
6666
6667         if (!vport)
6668                 return NULL;
6669         phba = vport->phba;
6670         if (!phba)
6671                 return NULL;
6672         ndlp = lpfc_findnode_did(vport, Fabric_DID);
6673         if (!ndlp) {
6674                 /* Cannot find existing Fabric ndlp, so allocate a new one */
6675                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
6676                 if (!ndlp)
6677                         return NULL;
6678                 /* Set the node type */
6679                 ndlp->nlp_type |= NLP_FABRIC;
6680                 /* Put ndlp onto node list */
6681                 lpfc_enqueue_node(vport, ndlp);
6682         }
6683         if ((phba->pport->port_state < LPFC_FLOGI) &&
6684                 (phba->pport->port_state != LPFC_VPORT_FAILED))
6685                 return NULL;
6686         /* If virtual link is not yet instantiated ignore CVL */
6687         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
6688                 && (vport->port_state != LPFC_VPORT_FAILED))
6689                 return NULL;
6690         shost = lpfc_shost_from_vport(vport);
6691         if (!shost)
6692                 return NULL;
6693         lpfc_linkdown_port(vport);
6694         lpfc_cleanup_pending_mbox(vport);
6695         set_bit(FC_VPORT_CVL_RCVD, &vport->fc_flag);
6696
6697         return ndlp;
6698 }
6699
6700 /**
6701  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
6702  * @phba: pointer to lpfc hba data structure.
6703  *
6704  * This routine is to perform Clear Virtual Link (CVL) on all vports in
6705  * response to a FCF dead event.
6706  **/
6707 static void
6708 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
6709 {
6710         struct lpfc_vport **vports;
6711         int i;
6712
6713         vports = lpfc_create_vport_work_array(phba);
6714         if (vports)
6715                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
6716                         lpfc_sli4_perform_vport_cvl(vports[i]);
6717         lpfc_destroy_vport_work_array(phba, vports);
6718 }
6719
6720 /**
6721  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
6722  * @phba: pointer to lpfc hba data structure.
6723  * @acqe_fip: pointer to the async fcoe completion queue entry.
6724  *
6725  * This routine is to handle the SLI4 asynchronous fcoe event.
6726  **/
6727 static void
6728 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
6729                         struct lpfc_acqe_fip *acqe_fip)
6730 {
6731         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
6732         int rc;
6733         struct lpfc_vport *vport;
6734         struct lpfc_nodelist *ndlp;
6735         int active_vlink_present;
6736         struct lpfc_vport **vports;
6737         int i;
6738
6739         phba->fc_eventTag = acqe_fip->event_tag;
6740         phba->fcoe_eventtag = acqe_fip->event_tag;
6741         switch (event_type) {
6742         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
6743         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
6744                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
6745                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6746                                         "2546 New FCF event, evt_tag:x%x, "
6747                                         "index:x%x\n",
6748                                         acqe_fip->event_tag,
6749                                         acqe_fip->index);
6750                 else
6751                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
6752                                         LOG_DISCOVERY,
6753                                         "2788 FCF param modified event, "
6754                                         "evt_tag:x%x, index:x%x\n",
6755                                         acqe_fip->event_tag,
6756                                         acqe_fip->index);
6757                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6758                         /*
6759                          * During period of FCF discovery, read the FCF
6760                          * table record indexed by the event to update
6761                          * FCF roundrobin failover eligible FCF bmask.
6762                          */
6763                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6764                                         LOG_DISCOVERY,
6765                                         "2779 Read FCF (x%x) for updating "
6766                                         "roundrobin FCF failover bmask\n",
6767                                         acqe_fip->index);
6768                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
6769                 }
6770
6771                 /* If the FCF discovery is in progress, do nothing. */
6772                 if (test_bit(FCF_TS_INPROG, &phba->hba_flag))
6773                         break;
6774                 spin_lock_irq(&phba->hbalock);
6775                 /* If fast FCF failover rescan event is pending, do nothing */
6776                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
6777                         spin_unlock_irq(&phba->hbalock);
6778                         break;
6779                 }
6780
6781                 /* If the FCF has been in discovered state, do nothing. */
6782                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
6783                         spin_unlock_irq(&phba->hbalock);
6784                         break;
6785                 }
6786                 spin_unlock_irq(&phba->hbalock);
6787
6788                 /* Otherwise, scan the entire FCF table and re-discover SAN */
6789                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6790                                 "2770 Start FCF table scan per async FCF "
6791                                 "event, evt_tag:x%x, index:x%x\n",
6792                                 acqe_fip->event_tag, acqe_fip->index);
6793                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
6794                                                      LPFC_FCOE_FCF_GET_FIRST);
6795                 if (rc)
6796                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6797                                         "2547 Issue FCF scan read FCF mailbox "
6798                                         "command failed (x%x)\n", rc);
6799                 break;
6800
6801         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
6802                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6803                                 "2548 FCF Table full count 0x%x tag 0x%x\n",
6804                                 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
6805                                 acqe_fip->event_tag);
6806                 break;
6807
6808         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
6809                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6810                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6811                                 "2549 FCF (x%x) disconnected from network, "
6812                                  "tag:x%x\n", acqe_fip->index,
6813                                  acqe_fip->event_tag);
6814                 /*
6815                  * If we are in the middle of FCF failover process, clear
6816                  * the corresponding FCF bit in the roundrobin bitmap.
6817                  */
6818                 spin_lock_irq(&phba->hbalock);
6819                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
6820                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
6821                         spin_unlock_irq(&phba->hbalock);
6822                         /* Update FLOGI FCF failover eligible FCF bmask */
6823                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
6824                         break;
6825                 }
6826                 spin_unlock_irq(&phba->hbalock);
6827
6828                 /* If the event is not for currently used fcf do nothing */
6829                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
6830                         break;
6831
6832                 /*
6833                  * Otherwise, request the port to rediscover the entire FCF
6834                  * table for a fast recovery from case that the current FCF
6835                  * is no longer valid as we are not in the middle of FCF
6836                  * failover process already.
6837                  */
6838                 spin_lock_irq(&phba->hbalock);
6839                 /* Mark the fast failover process in progress */
6840                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
6841                 spin_unlock_irq(&phba->hbalock);
6842
6843                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6844                                 "2771 Start FCF fast failover process due to "
6845                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
6846                                 "\n", acqe_fip->event_tag, acqe_fip->index);
6847                 rc = lpfc_sli4_redisc_fcf_table(phba);
6848                 if (rc) {
6849                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6850                                         LOG_TRACE_EVENT,
6851                                         "2772 Issue FCF rediscover mailbox "
6852                                         "command failed, fail through to FCF "
6853                                         "dead event\n");
6854                         spin_lock_irq(&phba->hbalock);
6855                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
6856                         spin_unlock_irq(&phba->hbalock);
6857                         /*
6858                          * Last resort will fail over by treating this
6859                          * as a link down to FCF registration.
6860                          */
6861                         lpfc_sli4_fcf_dead_failthrough(phba);
6862                 } else {
6863                         /* Reset FCF roundrobin bmask for new discovery */
6864                         lpfc_sli4_clear_fcf_rr_bmask(phba);
6865                         /*
6866                          * Handling fast FCF failover to a DEAD FCF event is
6867                          * considered equalivant to receiving CVL to all vports.
6868                          */
6869                         lpfc_sli4_perform_all_vport_cvl(phba);
6870                 }
6871                 break;
6872         case LPFC_FIP_EVENT_TYPE_CVL:
6873                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6874                 lpfc_printf_log(phba, KERN_ERR,
6875                                 LOG_TRACE_EVENT,
6876                         "2718 Clear Virtual Link Received for VPI 0x%x"
6877                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6878
6879                 vport = lpfc_find_vport_by_vpid(phba,
6880                                                 acqe_fip->index);
6881                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6882                 if (!ndlp)
6883                         break;
6884                 active_vlink_present = 0;
6885
6886                 vports = lpfc_create_vport_work_array(phba);
6887                 if (vports) {
6888                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6889                                         i++) {
6890                                 if (!test_bit(FC_VPORT_CVL_RCVD,
6891                                               &vports[i]->fc_flag) &&
6892                                     vports[i]->port_state > LPFC_FDISC) {
6893                                         active_vlink_present = 1;
6894                                         break;
6895                                 }
6896                         }
6897                         lpfc_destroy_vport_work_array(phba, vports);
6898                 }
6899
6900                 /*
6901                  * Don't re-instantiate if vport is marked for deletion.
6902                  * If we are here first then vport_delete is going to wait
6903                  * for discovery to complete.
6904                  */
6905                 if (!test_bit(FC_UNLOADING, &vport->load_flag) &&
6906                     active_vlink_present) {
6907                         /*
6908                          * If there are other active VLinks present,
6909                          * re-instantiate the Vlink using FDISC.
6910                          */
6911                         mod_timer(&ndlp->nlp_delayfunc,
6912                                   jiffies + msecs_to_jiffies(1000));
6913                         set_bit(NLP_DELAY_TMO, &ndlp->nlp_flag);
6914                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
6915                         vport->port_state = LPFC_FDISC;
6916                 } else {
6917                         /*
6918                          * Otherwise, we request port to rediscover
6919                          * the entire FCF table for a fast recovery
6920                          * from possible case that the current FCF
6921                          * is no longer valid if we are not already
6922                          * in the FCF failover process.
6923                          */
6924                         spin_lock_irq(&phba->hbalock);
6925                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6926                                 spin_unlock_irq(&phba->hbalock);
6927                                 break;
6928                         }
6929                         /* Mark the fast failover process in progress */
6930                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
6931                         spin_unlock_irq(&phba->hbalock);
6932                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6933                                         LOG_DISCOVERY,
6934                                         "2773 Start FCF failover per CVL, "
6935                                         "evt_tag:x%x\n", acqe_fip->event_tag);
6936                         rc = lpfc_sli4_redisc_fcf_table(phba);
6937                         if (rc) {
6938                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6939                                                 LOG_TRACE_EVENT,
6940                                                 "2774 Issue FCF rediscover "
6941                                                 "mailbox command failed, "
6942                                                 "through to CVL event\n");
6943                                 spin_lock_irq(&phba->hbalock);
6944                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
6945                                 spin_unlock_irq(&phba->hbalock);
6946                                 /*
6947                                  * Last resort will be re-try on the
6948                                  * the current registered FCF entry.
6949                                  */
6950                                 lpfc_retry_pport_discovery(phba);
6951                         } else
6952                                 /*
6953                                  * Reset FCF roundrobin bmask for new
6954                                  * discovery.
6955                                  */
6956                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
6957                 }
6958                 break;
6959         default:
6960                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6961                                 "0288 Unknown FCoE event type 0x%x event tag "
6962                                 "0x%x\n", event_type, acqe_fip->event_tag);
6963                 break;
6964         }
6965 }
6966
6967 /**
6968  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
6969  * @phba: pointer to lpfc hba data structure.
6970  * @acqe_dcbx: pointer to the async dcbx completion queue entry.
6971  *
6972  * This routine is to handle the SLI4 asynchronous dcbx event.
6973  **/
6974 static void
6975 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
6976                          struct lpfc_acqe_dcbx *acqe_dcbx)
6977 {
6978         phba->fc_eventTag = acqe_dcbx->event_tag;
6979         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6980                         "0290 The SLI4 DCBX asynchronous event is not "
6981                         "handled yet\n");
6982 }
6983
6984 /**
6985  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
6986  * @phba: pointer to lpfc hba data structure.
6987  * @acqe_grp5: pointer to the async grp5 completion queue entry.
6988  *
6989  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
6990  * is an asynchronous notified of a logical link speed change.  The Port
6991  * reports the logical link speed in units of 10Mbps.
6992  **/
6993 static void
6994 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
6995                          struct lpfc_acqe_grp5 *acqe_grp5)
6996 {
6997         uint16_t prev_ll_spd;
6998
6999         phba->fc_eventTag = acqe_grp5->event_tag;
7000         phba->fcoe_eventtag = acqe_grp5->event_tag;
7001         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
7002         phba->sli4_hba.link_state.logical_speed =
7003                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
7004         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7005                         "2789 GRP5 Async Event: Updating logical link speed "
7006                         "from %dMbps to %dMbps\n", prev_ll_spd,
7007                         phba->sli4_hba.link_state.logical_speed);
7008 }
7009
7010 /**
7011  * lpfc_sli4_async_cmstat_evt - Process the asynchronous cmstat event
7012  * @phba: pointer to lpfc hba data structure.
7013  *
7014  * This routine is to handle the SLI4 asynchronous cmstat event. A cmstat event
7015  * is an asynchronous notification of a request to reset CM stats.
7016  **/
7017 static void
7018 lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba)
7019 {
7020         if (!phba->cgn_i)
7021                 return;
7022         lpfc_init_congestion_stat(phba);
7023 }
7024
7025 /**
7026  * lpfc_cgn_params_val - Validate FW congestion parameters.
7027  * @phba: pointer to lpfc hba data structure.
7028  * @p_cfg_param: pointer to FW provided congestion parameters.
7029  *
7030  * This routine validates the congestion parameters passed
7031  * by the FW to the driver via an ACQE event.
7032  **/
7033 static void
7034 lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
7035 {
7036         spin_lock_irq(&phba->hbalock);
7037
7038         if (!lpfc_rangecheck(p_cfg_param->cgn_param_mode, LPFC_CFG_OFF,
7039                              LPFC_CFG_MONITOR)) {
7040                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
7041                                 "6225 CMF mode param out of range: %d\n",
7042                                  p_cfg_param->cgn_param_mode);
7043                 p_cfg_param->cgn_param_mode = LPFC_CFG_OFF;
7044         }
7045
7046         spin_unlock_irq(&phba->hbalock);
7047 }
7048
7049 static const char * const lpfc_cmf_mode_to_str[] = {
7050         "OFF",
7051         "MANAGED",
7052         "MONITOR",
7053 };
7054
7055 /**
7056  * lpfc_cgn_params_parse - Process a FW cong parm change event
7057  * @phba: pointer to lpfc hba data structure.
7058  * @p_cgn_param: pointer to a data buffer with the FW cong params.
7059  * @len: the size of pdata in bytes.
7060  *
7061  * This routine validates the congestion management buffer signature
7062  * from the FW, validates the contents and makes corrections for
7063  * valid, in-range values.  If the signature magic is correct and
7064  * after parameter validation, the contents are copied to the driver's
7065  * @phba structure. If the magic is incorrect, an error message is
7066  * logged.
7067  **/
7068 static void
7069 lpfc_cgn_params_parse(struct lpfc_hba *phba,
7070                       struct lpfc_cgn_param *p_cgn_param, uint32_t len)
7071 {
7072         struct lpfc_cgn_info *cp;
7073         uint32_t crc, oldmode;
7074         char acr_string[4] = {0};
7075
7076         /* Make sure the FW has encoded the correct magic number to
7077          * validate the congestion parameter in FW memory.
7078          */
7079         if (p_cgn_param->cgn_param_magic == LPFC_CFG_PARAM_MAGIC_NUM) {
7080                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7081                                 "4668 FW cgn parm buffer data: "
7082                                 "magic 0x%x version %d mode %d "
7083                                 "level0 %d level1 %d "
7084                                 "level2 %d byte13 %d "
7085                                 "byte14 %d byte15 %d "
7086                                 "byte11 %d byte12 %d activeMode %d\n",
7087                                 p_cgn_param->cgn_param_magic,
7088                                 p_cgn_param->cgn_param_version,
7089                                 p_cgn_param->cgn_param_mode,
7090                                 p_cgn_param->cgn_param_level0,
7091                                 p_cgn_param->cgn_param_level1,
7092                                 p_cgn_param->cgn_param_level2,
7093                                 p_cgn_param->byte13,
7094                                 p_cgn_param->byte14,
7095                                 p_cgn_param->byte15,
7096                                 p_cgn_param->byte11,
7097                                 p_cgn_param->byte12,
7098                                 phba->cmf_active_mode);
7099
7100                 oldmode = phba->cmf_active_mode;
7101
7102                 /* Any parameters out of range are corrected to defaults
7103                  * by this routine.  No need to fail.
7104                  */
7105                 lpfc_cgn_params_val(phba, p_cgn_param);
7106
7107                 /* Parameters are verified, move them into driver storage */
7108                 spin_lock_irq(&phba->hbalock);
7109                 memcpy(&phba->cgn_p, p_cgn_param,
7110                        sizeof(struct lpfc_cgn_param));
7111
7112                 /* Update parameters in congestion info buffer now */
7113                 if (phba->cgn_i) {
7114                         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
7115                         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
7116                         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
7117                         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
7118                         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
7119                         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
7120                                                   LPFC_CGN_CRC32_SEED);
7121                         cp->cgn_info_crc = cpu_to_le32(crc);
7122                 }
7123                 spin_unlock_irq(&phba->hbalock);
7124
7125                 phba->cmf_active_mode = phba->cgn_p.cgn_param_mode;
7126
7127                 switch (oldmode) {
7128                 case LPFC_CFG_OFF:
7129                         if (phba->cgn_p.cgn_param_mode != LPFC_CFG_OFF) {
7130                                 /* Turning CMF on */
7131                                 lpfc_cmf_start(phba);
7132
7133                                 if (phba->link_state >= LPFC_LINK_UP) {
7134                                         phba->cgn_reg_fpin =
7135                                                 phba->cgn_init_reg_fpin;
7136                                         phba->cgn_reg_signal =
7137                                                 phba->cgn_init_reg_signal;
7138                                         lpfc_issue_els_edc(phba->pport, 0);
7139                                 }
7140                         }
7141                         break;
7142                 case LPFC_CFG_MANAGED:
7143                         switch (phba->cgn_p.cgn_param_mode) {
7144                         case LPFC_CFG_OFF:
7145                                 /* Turning CMF off */
7146                                 lpfc_cmf_stop(phba);
7147                                 if (phba->link_state >= LPFC_LINK_UP)
7148                                         lpfc_issue_els_edc(phba->pport, 0);
7149                                 break;
7150                         case LPFC_CFG_MONITOR:
7151                                 phba->cmf_max_bytes_per_interval =
7152                                         phba->cmf_link_byte_count;
7153
7154                                 /* Resume blocked IO - unblock on workqueue */
7155                                 queue_work(phba->wq,
7156                                            &phba->unblock_request_work);
7157                                 break;
7158                         }
7159                         break;
7160                 case LPFC_CFG_MONITOR:
7161                         switch (phba->cgn_p.cgn_param_mode) {
7162                         case LPFC_CFG_OFF:
7163                                 /* Turning CMF off */
7164                                 lpfc_cmf_stop(phba);
7165                                 if (phba->link_state >= LPFC_LINK_UP)
7166                                         lpfc_issue_els_edc(phba->pport, 0);
7167                                 break;
7168                         case LPFC_CFG_MANAGED:
7169                                 lpfc_cmf_signal_init(phba);
7170                                 break;
7171                         }
7172                         break;
7173                 }
7174                 if (oldmode != LPFC_CFG_OFF ||
7175                     oldmode != phba->cgn_p.cgn_param_mode) {
7176                         if (phba->cgn_p.cgn_param_mode == LPFC_CFG_MANAGED)
7177                                 scnprintf(acr_string, sizeof(acr_string), "%u",
7178                                           phba->cgn_p.cgn_param_level0);
7179                         else
7180                                 scnprintf(acr_string, sizeof(acr_string), "NA");
7181
7182                         dev_info(&phba->pcidev->dev, "%d: "
7183                                  "4663 CMF: Mode %s acr %s\n",
7184                                  phba->brd_no,
7185                                  lpfc_cmf_mode_to_str
7186                                  [phba->cgn_p.cgn_param_mode],
7187                                  acr_string);
7188                 }
7189         } else {
7190                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7191                                 "4669 FW cgn parm buf wrong magic 0x%x "
7192                                 "version %d\n", p_cgn_param->cgn_param_magic,
7193                                 p_cgn_param->cgn_param_version);
7194         }
7195 }
7196
7197 /**
7198  * lpfc_sli4_cgn_params_read - Read and Validate FW congestion parameters.
7199  * @phba: pointer to lpfc hba data structure.
7200  *
7201  * This routine issues a read_object mailbox command to
7202  * get the congestion management parameters from the FW
7203  * parses it and updates the driver maintained values.
7204  *
7205  * Returns
7206  *  0     if the object was empty
7207  *  -Eval if an error was encountered
7208  *  Count if bytes were read from object
7209  **/
7210 int
7211 lpfc_sli4_cgn_params_read(struct lpfc_hba *phba)
7212 {
7213         int ret = 0;
7214         struct lpfc_cgn_param *p_cgn_param = NULL;
7215         u32 *pdata = NULL;
7216         u32 len = 0;
7217
7218         /* Find out if the FW has a new set of congestion parameters. */
7219         len = sizeof(struct lpfc_cgn_param);
7220         pdata = kzalloc(len, GFP_KERNEL);
7221         if (!pdata)
7222                 return -ENOMEM;
7223         ret = lpfc_read_object(phba, (char *)LPFC_PORT_CFG_NAME,
7224                                pdata, len);
7225
7226         /* 0 means no data.  A negative means error.  A positive means
7227          * bytes were copied.
7228          */
7229         if (!ret) {
7230                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7231                                 "4670 CGN RD OBJ returns no data\n");
7232                 goto rd_obj_err;
7233         } else if (ret < 0) {
7234                 /* Some error.  Just exit and return it to the caller.*/
7235                 goto rd_obj_err;
7236         }
7237
7238         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7239                         "6234 READ CGN PARAMS Successful %d\n", len);
7240
7241         /* Parse data pointer over len and update the phba congestion
7242          * parameters with values passed back.  The receive rate values
7243          * may have been altered in FW, but take no action here.
7244          */
7245         p_cgn_param = (struct lpfc_cgn_param *)pdata;
7246         lpfc_cgn_params_parse(phba, p_cgn_param, len);
7247
7248  rd_obj_err:
7249         kfree(pdata);
7250         return ret;
7251 }
7252
7253 /**
7254  * lpfc_sli4_cgn_parm_chg_evt - Process a FW congestion param change event
7255  * @phba: pointer to lpfc hba data structure.
7256  *
7257  * The FW generated Async ACQE SLI event calls this routine when
7258  * the event type is an SLI Internal Port Event and the Event Code
7259  * indicates a change to the FW maintained congestion parameters.
7260  *
7261  * This routine executes a Read_Object mailbox call to obtain the
7262  * current congestion parameters maintained in FW and corrects
7263  * the driver's active congestion parameters.
7264  *
7265  * The acqe event is not passed because there is no further data
7266  * required.
7267  *
7268  * Returns nonzero error if event processing encountered an error.
7269  * Zero otherwise for success.
7270  **/
7271 static int
7272 lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *phba)
7273 {
7274         int ret = 0;
7275
7276         if (!phba->sli4_hba.pc_sli4_params.cmf) {
7277                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7278                                 "4664 Cgn Evt when E2E off. Drop event\n");
7279                 return -EACCES;
7280         }
7281
7282         /* If the event is claiming an empty object, it's ok.  A write
7283          * could have cleared it.  Only error is a negative return
7284          * status.
7285          */
7286         ret = lpfc_sli4_cgn_params_read(phba);
7287         if (ret < 0) {
7288                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7289                                 "4667 Error reading Cgn Params (%d)\n",
7290                                 ret);
7291         } else if (!ret) {
7292                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7293                                 "4673 CGN Event empty object.\n");
7294         }
7295         return ret;
7296 }
7297
7298 /**
7299  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
7300  * @phba: pointer to lpfc hba data structure.
7301  *
7302  * This routine is invoked by the worker thread to process all the pending
7303  * SLI4 asynchronous events.
7304  **/
7305 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
7306 {
7307         struct lpfc_cq_event *cq_event;
7308         unsigned long iflags;
7309
7310         /* First, declare the async event has been handled */
7311         clear_bit(ASYNC_EVENT, &phba->hba_flag);
7312
7313         /* Now, handle all the async events */
7314         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7315         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
7316                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
7317                                  cq_event, struct lpfc_cq_event, list);
7318                 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock,
7319                                        iflags);
7320
7321                 /* Process the asynchronous event */
7322                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
7323                 case LPFC_TRAILER_CODE_LINK:
7324                         lpfc_sli4_async_link_evt(phba,
7325                                                  &cq_event->cqe.acqe_link);
7326                         break;
7327                 case LPFC_TRAILER_CODE_FCOE:
7328                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
7329                         break;
7330                 case LPFC_TRAILER_CODE_DCBX:
7331                         lpfc_sli4_async_dcbx_evt(phba,
7332                                                  &cq_event->cqe.acqe_dcbx);
7333                         break;
7334                 case LPFC_TRAILER_CODE_GRP5:
7335                         lpfc_sli4_async_grp5_evt(phba,
7336                                                  &cq_event->cqe.acqe_grp5);
7337                         break;
7338                 case LPFC_TRAILER_CODE_FC:
7339                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
7340                         break;
7341                 case LPFC_TRAILER_CODE_SLI:
7342                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
7343                         break;
7344                 default:
7345                         lpfc_printf_log(phba, KERN_ERR,
7346                                         LOG_TRACE_EVENT,
7347                                         "1804 Invalid asynchronous event code: "
7348                                         "x%x\n", bf_get(lpfc_trailer_code,
7349                                         &cq_event->cqe.mcqe_cmpl));
7350                         break;
7351                 }
7352
7353                 /* Free the completion event processed to the free pool */
7354                 lpfc_sli4_cq_event_release(phba, cq_event);
7355                 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7356         }
7357         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
7358 }
7359
7360 /**
7361  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
7362  * @phba: pointer to lpfc hba data structure.
7363  *
7364  * This routine is invoked by the worker thread to process FCF table
7365  * rediscovery pending completion event.
7366  **/
7367 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
7368 {
7369         int rc;
7370
7371         spin_lock_irq(&phba->hbalock);
7372         /* Clear FCF rediscovery timeout event */
7373         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
7374         /* Clear driver fast failover FCF record flag */
7375         phba->fcf.failover_rec.flag = 0;
7376         /* Set state for FCF fast failover */
7377         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
7378         spin_unlock_irq(&phba->hbalock);
7379
7380         /* Scan FCF table from the first entry to re-discover SAN */
7381         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
7382                         "2777 Start post-quiescent FCF table scan\n");
7383         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
7384         if (rc)
7385                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7386                                 "2747 Issue FCF scan read FCF mailbox "
7387                                 "command failed 0x%x\n", rc);
7388 }
7389
7390 /**
7391  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
7392  * @phba: pointer to lpfc hba data structure.
7393  * @dev_grp: The HBA PCI-Device group number.
7394  *
7395  * This routine is invoked to set up the per HBA PCI-Device group function
7396  * API jump table entries.
7397  *
7398  * Return: 0 if success, otherwise -ENODEV
7399  **/
7400 int
7401 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7402 {
7403         int rc;
7404
7405         /* Set up lpfc PCI-device group */
7406         phba->pci_dev_grp = dev_grp;
7407
7408         /* The LPFC_PCI_DEV_OC uses SLI4 */
7409         if (dev_grp == LPFC_PCI_DEV_OC)
7410                 phba->sli_rev = LPFC_SLI_REV4;
7411
7412         /* Set up device INIT API function jump table */
7413         rc = lpfc_init_api_table_setup(phba, dev_grp);
7414         if (rc)
7415                 return -ENODEV;
7416         /* Set up SCSI API function jump table */
7417         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
7418         if (rc)
7419                 return -ENODEV;
7420         /* Set up SLI API function jump table */
7421         rc = lpfc_sli_api_table_setup(phba, dev_grp);
7422         if (rc)
7423                 return -ENODEV;
7424         /* Set up MBOX API function jump table */
7425         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
7426         if (rc)
7427                 return -ENODEV;
7428
7429         return 0;
7430 }
7431
7432 /**
7433  * lpfc_log_intr_mode - Log the active interrupt mode
7434  * @phba: pointer to lpfc hba data structure.
7435  * @intr_mode: active interrupt mode adopted.
7436  *
7437  * This routine it invoked to log the currently used active interrupt mode
7438  * to the device.
7439  **/
7440 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
7441 {
7442         switch (intr_mode) {
7443         case 0:
7444                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7445                                 "0470 Enable INTx interrupt mode.\n");
7446                 break;
7447         case 1:
7448                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7449                                 "0481 Enabled MSI interrupt mode.\n");
7450                 break;
7451         case 2:
7452                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7453                                 "0480 Enabled MSI-X interrupt mode.\n");
7454                 break;
7455         default:
7456                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7457                                 "0482 Illegal interrupt mode.\n");
7458                 break;
7459         }
7460         return;
7461 }
7462
7463 /**
7464  * lpfc_enable_pci_dev - Enable a generic PCI device.
7465  * @phba: pointer to lpfc hba data structure.
7466  *
7467  * This routine is invoked to enable the PCI device that is common to all
7468  * PCI devices.
7469  *
7470  * Return codes
7471  *      0 - successful
7472  *      other values - error
7473  **/
7474 static int
7475 lpfc_enable_pci_dev(struct lpfc_hba *phba)
7476 {
7477         struct pci_dev *pdev;
7478
7479         /* Obtain PCI device reference */
7480         if (!phba->pcidev)
7481                 goto out_error;
7482         else
7483                 pdev = phba->pcidev;
7484         /* Enable PCI device */
7485         if (pci_enable_device_mem(pdev))
7486                 goto out_error;
7487         /* Request PCI resource for the device */
7488         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
7489                 goto out_disable_device;
7490         /* Set up device as PCI master and save state for EEH */
7491         pci_set_master(pdev);
7492         pci_try_set_mwi(pdev);
7493         pci_save_state(pdev);
7494
7495         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
7496         if (pci_is_pcie(pdev))
7497                 pdev->needs_freset = 1;
7498
7499         return 0;
7500
7501 out_disable_device:
7502         pci_disable_device(pdev);
7503 out_error:
7504         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7505                         "1401 Failed to enable pci device\n");
7506         return -ENODEV;
7507 }
7508
7509 /**
7510  * lpfc_disable_pci_dev - Disable a generic PCI device.
7511  * @phba: pointer to lpfc hba data structure.
7512  *
7513  * This routine is invoked to disable the PCI device that is common to all
7514  * PCI devices.
7515  **/
7516 static void
7517 lpfc_disable_pci_dev(struct lpfc_hba *phba)
7518 {
7519         struct pci_dev *pdev;
7520
7521         /* Obtain PCI device reference */
7522         if (!phba->pcidev)
7523                 return;
7524         else
7525                 pdev = phba->pcidev;
7526         /* Release PCI resource and disable PCI device */
7527         pci_release_mem_regions(pdev);
7528         pci_disable_device(pdev);
7529
7530         return;
7531 }
7532
7533 /**
7534  * lpfc_reset_hba - Reset a hba
7535  * @phba: pointer to lpfc hba data structure.
7536  *
7537  * This routine is invoked to reset a hba device. It brings the HBA
7538  * offline, performs a board restart, and then brings the board back
7539  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
7540  * on outstanding mailbox commands.
7541  **/
7542 void
7543 lpfc_reset_hba(struct lpfc_hba *phba)
7544 {
7545         int rc = 0;
7546
7547         /* If resets are disabled then set error state and return. */
7548         if (!phba->cfg_enable_hba_reset) {
7549                 phba->link_state = LPFC_HBA_ERROR;
7550                 return;
7551         }
7552
7553         /* If not LPFC_SLI_ACTIVE, force all IO to be flushed */
7554         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) {
7555                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
7556         } else {
7557                 if (test_bit(MBX_TMO_ERR, &phba->bit_flags)) {
7558                         /* Perform a PCI function reset to start from clean */
7559                         rc = lpfc_pci_function_reset(phba);
7560                         lpfc_els_flush_all_cmd(phba);
7561                 }
7562                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
7563                 lpfc_sli_flush_io_rings(phba);
7564         }
7565         lpfc_offline(phba);
7566         clear_bit(MBX_TMO_ERR, &phba->bit_flags);
7567         if (unlikely(rc)) {
7568                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7569                                 "8888 PCI function reset failed rc %x\n",
7570                                 rc);
7571         } else {
7572                 lpfc_sli_brdrestart(phba);
7573                 lpfc_online(phba);
7574                 lpfc_unblock_mgmt_io(phba);
7575         }
7576 }
7577
7578 /**
7579  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
7580  * @phba: pointer to lpfc hba data structure.
7581  *
7582  * This function enables the PCI SR-IOV virtual functions to a physical
7583  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7584  * enable the number of virtual functions to the physical function. As
7585  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7586  * API call does not considered as an error condition for most of the device.
7587  **/
7588 uint16_t
7589 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
7590 {
7591         struct pci_dev *pdev = phba->pcidev;
7592         uint16_t nr_virtfn;
7593         int pos;
7594
7595         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
7596         if (pos == 0)
7597                 return 0;
7598
7599         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
7600         return nr_virtfn;
7601 }
7602
7603 /**
7604  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
7605  * @phba: pointer to lpfc hba data structure.
7606  * @nr_vfn: number of virtual functions to be enabled.
7607  *
7608  * This function enables the PCI SR-IOV virtual functions to a physical
7609  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7610  * enable the number of virtual functions to the physical function. As
7611  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7612  * API call does not considered as an error condition for most of the device.
7613  **/
7614 int
7615 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
7616 {
7617         struct pci_dev *pdev = phba->pcidev;
7618         uint16_t max_nr_vfn;
7619         int rc;
7620
7621         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
7622         if (nr_vfn > max_nr_vfn) {
7623                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7624                                 "3057 Requested vfs (%d) greater than "
7625                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
7626                 return -EINVAL;
7627         }
7628
7629         rc = pci_enable_sriov(pdev, nr_vfn);
7630         if (rc) {
7631                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7632                                 "2806 Failed to enable sriov on this device "
7633                                 "with vfn number nr_vf:%d, rc:%d\n",
7634                                 nr_vfn, rc);
7635         } else
7636                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7637                                 "2807 Successful enable sriov on this device "
7638                                 "with vfn number nr_vf:%d\n", nr_vfn);
7639         return rc;
7640 }
7641
7642 static void
7643 lpfc_unblock_requests_work(struct work_struct *work)
7644 {
7645         struct lpfc_hba *phba = container_of(work, struct lpfc_hba,
7646                                              unblock_request_work);
7647
7648         lpfc_unblock_requests(phba);
7649 }
7650
7651 /**
7652  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
7653  * @phba: pointer to lpfc hba data structure.
7654  *
7655  * This routine is invoked to set up the driver internal resources before the
7656  * device specific resource setup to support the HBA device it attached to.
7657  *
7658  * Return codes
7659  *      0 - successful
7660  *      other values - error
7661  **/
7662 static int
7663 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
7664 {
7665         struct lpfc_sli *psli = &phba->sli;
7666
7667         /*
7668          * Driver resources common to all SLI revisions
7669          */
7670         atomic_set(&phba->fast_event_count, 0);
7671         atomic_set(&phba->dbg_log_idx, 0);
7672         atomic_set(&phba->dbg_log_cnt, 0);
7673         atomic_set(&phba->dbg_log_dmping, 0);
7674         spin_lock_init(&phba->hbalock);
7675
7676         /* Initialize port_list spinlock */
7677         spin_lock_init(&phba->port_list_lock);
7678         INIT_LIST_HEAD(&phba->port_list);
7679
7680         INIT_LIST_HEAD(&phba->work_list);
7681
7682         /* Initialize the wait queue head for the kernel thread */
7683         init_waitqueue_head(&phba->work_waitq);
7684
7685         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7686                         "1403 Protocols supported %s %s %s\n",
7687                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
7688                                 "SCSI" : " "),
7689                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
7690                                 "NVME" : " "),
7691                         (phba->nvmet_support ? "NVMET" : " "));
7692
7693         /* ras_fwlog state */
7694         spin_lock_init(&phba->ras_fwlog_lock);
7695
7696         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
7697         spin_lock_init(&phba->scsi_buf_list_get_lock);
7698         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
7699         spin_lock_init(&phba->scsi_buf_list_put_lock);
7700         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
7701
7702         /* Initialize the fabric iocb list */
7703         INIT_LIST_HEAD(&phba->fabric_iocb_list);
7704
7705         /* Initialize list to save ELS buffers */
7706         INIT_LIST_HEAD(&phba->elsbuf);
7707
7708         /* Initialize FCF connection rec list */
7709         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
7710
7711         /* Initialize OAS configuration list */
7712         spin_lock_init(&phba->devicelock);
7713         INIT_LIST_HEAD(&phba->luns);
7714
7715         /* MBOX heartbeat timer */
7716         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
7717         /* Fabric block timer */
7718         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
7719         /* EA polling mode timer */
7720         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
7721         /* Heartbeat timer */
7722         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
7723
7724         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
7725
7726         INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
7727                           lpfc_idle_stat_delay_work);
7728         INIT_WORK(&phba->unblock_request_work, lpfc_unblock_requests_work);
7729         return 0;
7730 }
7731
7732 /**
7733  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
7734  * @phba: pointer to lpfc hba data structure.
7735  *
7736  * This routine is invoked to set up the driver internal resources specific to
7737  * support the SLI-3 HBA device it attached to.
7738  *
7739  * Return codes
7740  * 0 - successful
7741  * other values - error
7742  **/
7743 static int
7744 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
7745 {
7746         int rc, entry_sz;
7747
7748         /*
7749          * Initialize timers used by driver
7750          */
7751
7752         /* FCP polling mode timer */
7753         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
7754
7755         /* Host attention work mask setup */
7756         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
7757         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
7758
7759         /* Get all the module params for configuring this host */
7760         lpfc_get_cfgparam(phba);
7761         /* Set up phase-1 common device driver resources */
7762
7763         rc = lpfc_setup_driver_resource_phase1(phba);
7764         if (rc)
7765                 return -ENODEV;
7766
7767         if (!phba->sli.sli3_ring)
7768                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
7769                                               sizeof(struct lpfc_sli_ring),
7770                                               GFP_KERNEL);
7771         if (!phba->sli.sli3_ring)
7772                 return -ENOMEM;
7773
7774         /*
7775          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
7776          * used to create the sg_dma_buf_pool must be dynamically calculated.
7777          */
7778
7779         if (phba->sli_rev == LPFC_SLI_REV4)
7780                 entry_sz = sizeof(struct sli4_sge);
7781         else
7782                 entry_sz = sizeof(struct ulp_bde64);
7783
7784         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
7785         if (phba->cfg_enable_bg) {
7786                 /*
7787                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
7788                  * the FCP rsp, and a BDE for each. Sice we have no control
7789                  * over how many protection data segments the SCSI Layer
7790                  * will hand us (ie: there could be one for every block
7791                  * in the IO), we just allocate enough BDEs to accomidate
7792                  * our max amount and we need to limit lpfc_sg_seg_cnt to
7793                  * minimize the risk of running out.
7794                  */
7795                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7796                         sizeof(struct fcp_rsp) +
7797                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
7798
7799                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
7800                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
7801
7802                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
7803                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
7804         } else {
7805                 /*
7806                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
7807                  * the FCP rsp, a BDE for each, and a BDE for up to
7808                  * cfg_sg_seg_cnt data segments.
7809                  */
7810                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7811                         sizeof(struct fcp_rsp) +
7812                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
7813
7814                 /* Total BDEs in BPL for scsi_sg_list */
7815                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
7816         }
7817
7818         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
7819                         "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
7820                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
7821                         phba->cfg_total_seg_cnt);
7822
7823         phba->max_vpi = LPFC_MAX_VPI;
7824         /* This will be set to correct value after config_port mbox */
7825         phba->max_vports = 0;
7826
7827         /*
7828          * Initialize the SLI Layer to run with lpfc HBAs.
7829          */
7830         lpfc_sli_setup(phba);
7831         lpfc_sli_queue_init(phba);
7832
7833         /* Allocate device driver memory */
7834         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
7835                 return -ENOMEM;
7836
7837         phba->lpfc_sg_dma_buf_pool =
7838                 dma_pool_create("lpfc_sg_dma_buf_pool",
7839                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
7840                                 BPL_ALIGN_SZ, 0);
7841
7842         if (!phba->lpfc_sg_dma_buf_pool)
7843                 goto fail_free_mem;
7844
7845         phba->lpfc_cmd_rsp_buf_pool =
7846                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
7847                                         &phba->pcidev->dev,
7848                                         sizeof(struct fcp_cmnd) +
7849                                         sizeof(struct fcp_rsp),
7850                                         BPL_ALIGN_SZ, 0);
7851
7852         if (!phba->lpfc_cmd_rsp_buf_pool)
7853                 goto fail_free_dma_buf_pool;
7854
7855         /*
7856          * Enable sr-iov virtual functions if supported and configured
7857          * through the module parameter.
7858          */
7859         if (phba->cfg_sriov_nr_virtfn > 0) {
7860                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7861                                                  phba->cfg_sriov_nr_virtfn);
7862                 if (rc) {
7863                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7864                                         "2808 Requested number of SR-IOV "
7865                                         "virtual functions (%d) is not "
7866                                         "supported\n",
7867                                         phba->cfg_sriov_nr_virtfn);
7868                         phba->cfg_sriov_nr_virtfn = 0;
7869                 }
7870         }
7871
7872         return 0;
7873
7874 fail_free_dma_buf_pool:
7875         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7876         phba->lpfc_sg_dma_buf_pool = NULL;
7877 fail_free_mem:
7878         lpfc_mem_free(phba);
7879         return -ENOMEM;
7880 }
7881
7882 /**
7883  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
7884  * @phba: pointer to lpfc hba data structure.
7885  *
7886  * This routine is invoked to unset the driver internal resources set up
7887  * specific for supporting the SLI-3 HBA device it attached to.
7888  **/
7889 static void
7890 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
7891 {
7892         /* Free device driver memory allocated */
7893         lpfc_mem_free_all(phba);
7894
7895         return;
7896 }
7897
7898 /**
7899  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
7900  * @phba: pointer to lpfc hba data structure.
7901  *
7902  * This routine is invoked to set up the driver internal resources specific to
7903  * support the SLI-4 HBA device it attached to.
7904  *
7905  * Return codes
7906  *      0 - successful
7907  *      other values - error
7908  **/
7909 static int
7910 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
7911 {
7912         LPFC_MBOXQ_t *mboxq;
7913         MAILBOX_t *mb;
7914         int rc, i, max_buf_size;
7915         int longs;
7916         int extra;
7917         uint64_t wwn;
7918         u32 if_type;
7919         u32 if_fam;
7920
7921         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7922         phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
7923         phba->sli4_hba.curr_disp_cpu = 0;
7924
7925         /* Get all the module params for configuring this host */
7926         lpfc_get_cfgparam(phba);
7927
7928         /* Set up phase-1 common device driver resources */
7929         rc = lpfc_setup_driver_resource_phase1(phba);
7930         if (rc)
7931                 return -ENODEV;
7932
7933         /* Before proceed, wait for POST done and device ready */
7934         rc = lpfc_sli4_post_status_check(phba);
7935         if (rc)
7936                 return -ENODEV;
7937
7938         /* Allocate all driver workqueues here */
7939
7940         /* The lpfc_wq workqueue for deferred irq use */
7941         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
7942         if (!phba->wq)
7943                 return -ENOMEM;
7944
7945         /*
7946          * Initialize timers used by driver
7947          */
7948
7949         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
7950
7951         /* FCF rediscover timer */
7952         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
7953
7954         /* CMF congestion timer */
7955         hrtimer_init(&phba->cmf_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
7956         phba->cmf_timer.function = lpfc_cmf_timer;
7957         /* CMF 1 minute stats collection timer */
7958         hrtimer_init(&phba->cmf_stats_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
7959         phba->cmf_stats_timer.function = lpfc_cmf_stats_timer;
7960
7961         /*
7962          * Control structure for handling external multi-buffer mailbox
7963          * command pass-through.
7964          */
7965         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
7966                 sizeof(struct lpfc_mbox_ext_buf_ctx));
7967         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
7968
7969         phba->max_vpi = LPFC_MAX_VPI;
7970
7971         /* This will be set to correct value after the read_config mbox */
7972         phba->max_vports = 0;
7973
7974         /* Program the default value of vlan_id and fc_map */
7975         phba->valid_vlan = 0;
7976         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
7977         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
7978         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
7979
7980         /*
7981          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
7982          * we will associate a new ring, for each EQ/CQ/WQ tuple.
7983          * The WQ create will allocate the ring.
7984          */
7985
7986         /* Initialize buffer queue management fields */
7987         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
7988         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
7989         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
7990
7991         /* for VMID idle timeout if VMID is enabled */
7992         if (lpfc_is_vmid_enabled(phba))
7993                 timer_setup(&phba->inactive_vmid_poll, lpfc_vmid_poll, 0);
7994
7995         /*
7996          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
7997          */
7998         /* Initialize the Abort buffer list used by driver */
7999         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
8000         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
8001
8002         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8003                 /* Initialize the Abort nvme buffer list used by driver */
8004                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
8005                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8006                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
8007                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
8008                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
8009         }
8010
8011         /* This abort list used by worker thread */
8012         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
8013         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
8014         spin_lock_init(&phba->sli4_hba.asynce_list_lock);
8015         spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
8016
8017         /*
8018          * Initialize driver internal slow-path work queues
8019          */
8020
8021         /* Driver internel slow-path CQ Event pool */
8022         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
8023         /* Response IOCB work queue list */
8024         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
8025         /* Asynchronous event CQ Event work queue list */
8026         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
8027         /* Slow-path XRI aborted CQ Event work queue list */
8028         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
8029         /* Receive queue CQ Event work queue list */
8030         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
8031
8032         /* Initialize extent block lists. */
8033         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
8034         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
8035         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
8036         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
8037
8038         /* Initialize mboxq lists. If the early init routines fail
8039          * these lists need to be correctly initialized.
8040          */
8041         INIT_LIST_HEAD(&phba->sli.mboxq);
8042         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
8043
8044         /* initialize optic_state to 0xFF */
8045         phba->sli4_hba.lnk_info.optic_state = 0xff;
8046
8047         /* Allocate device driver memory */
8048         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
8049         if (rc)
8050                 goto out_destroy_workqueue;
8051
8052         /* IF Type 2 ports get initialized now. */
8053         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
8054             LPFC_SLI_INTF_IF_TYPE_2) {
8055                 rc = lpfc_pci_function_reset(phba);
8056                 if (unlikely(rc)) {
8057                         rc = -ENODEV;
8058                         goto out_free_mem;
8059                 }
8060                 phba->temp_sensor_support = 1;
8061         }
8062
8063         /* Create the bootstrap mailbox command */
8064         rc = lpfc_create_bootstrap_mbox(phba);
8065         if (unlikely(rc))
8066                 goto out_free_mem;
8067
8068         /* Set up the host's endian order with the device. */
8069         rc = lpfc_setup_endian_order(phba);
8070         if (unlikely(rc))
8071                 goto out_free_bsmbx;
8072
8073         /* Set up the hba's configuration parameters. */
8074         rc = lpfc_sli4_read_config(phba);
8075         if (unlikely(rc))
8076                 goto out_free_bsmbx;
8077
8078         if (phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG) {
8079                 /* Right now the link is down, if FA-PWWN is configured the
8080                  * firmware will try FLOGI before the driver gets a link up.
8081                  * If it fails, the driver should get a MISCONFIGURED async
8082                  * event which will clear this flag. The only notification
8083                  * the driver gets is if it fails, if it succeeds there is no
8084                  * notification given. Assume success.
8085                  */
8086                 phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC;
8087         }
8088
8089         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
8090         if (unlikely(rc))
8091                 goto out_free_bsmbx;
8092
8093         /* IF Type 0 ports get initialized now. */
8094         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
8095             LPFC_SLI_INTF_IF_TYPE_0) {
8096                 rc = lpfc_pci_function_reset(phba);
8097                 if (unlikely(rc))
8098                         goto out_free_bsmbx;
8099         }
8100
8101         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8102                                                        GFP_KERNEL);
8103         if (!mboxq) {
8104                 rc = -ENOMEM;
8105                 goto out_free_bsmbx;
8106         }
8107
8108         /* Check for NVMET being configured */
8109         phba->nvmet_support = 0;
8110         if (lpfc_enable_nvmet_cnt) {
8111
8112                 /* First get WWN of HBA instance */
8113                 lpfc_read_nv(phba, mboxq);
8114                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8115                 if (rc != MBX_SUCCESS) {
8116                         lpfc_printf_log(phba, KERN_ERR,
8117                                         LOG_TRACE_EVENT,
8118                                         "6016 Mailbox failed , mbxCmd x%x "
8119                                         "READ_NV, mbxStatus x%x\n",
8120                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8121                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
8122                         mempool_free(mboxq, phba->mbox_mem_pool);
8123                         rc = -EIO;
8124                         goto out_free_bsmbx;
8125                 }
8126                 mb = &mboxq->u.mb;
8127                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
8128                        sizeof(uint64_t));
8129                 wwn = cpu_to_be64(wwn);
8130                 phba->sli4_hba.wwnn.u.name = wwn;
8131                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
8132                        sizeof(uint64_t));
8133                 /* wwn is WWPN of HBA instance */
8134                 wwn = cpu_to_be64(wwn);
8135                 phba->sli4_hba.wwpn.u.name = wwn;
8136
8137                 /* Check to see if it matches any module parameter */
8138                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
8139                         if (wwn == lpfc_enable_nvmet[i]) {
8140 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
8141                                 if (lpfc_nvmet_mem_alloc(phba))
8142                                         break;
8143
8144                                 phba->nvmet_support = 1; /* a match */
8145
8146                                 lpfc_printf_log(phba, KERN_ERR,
8147                                                 LOG_TRACE_EVENT,
8148                                                 "6017 NVME Target %016llx\n",
8149                                                 wwn);
8150 #else
8151                                 lpfc_printf_log(phba, KERN_ERR,
8152                                                 LOG_TRACE_EVENT,
8153                                                 "6021 Can't enable NVME Target."
8154                                                 " NVME_TARGET_FC infrastructure"
8155                                                 " is not in kernel\n");
8156 #endif
8157                                 /* Not supported for NVMET */
8158                                 phba->cfg_xri_rebalancing = 0;
8159                                 if (phba->irq_chann_mode == NHT_MODE) {
8160                                         phba->cfg_irq_chann =
8161                                                 phba->sli4_hba.num_present_cpu;
8162                                         phba->cfg_hdw_queue =
8163                                                 phba->sli4_hba.num_present_cpu;
8164                                         phba->irq_chann_mode = NORMAL_MODE;
8165                                 }
8166                                 break;
8167                         }
8168                 }
8169         }
8170
8171         lpfc_nvme_mod_param_dep(phba);
8172
8173         /*
8174          * Get sli4 parameters that override parameters from Port capabilities.
8175          * If this call fails, it isn't critical unless the SLI4 parameters come
8176          * back in conflict.
8177          */
8178         rc = lpfc_get_sli4_parameters(phba, mboxq);
8179         if (rc) {
8180                 if_type = bf_get(lpfc_sli_intf_if_type,
8181                                  &phba->sli4_hba.sli_intf);
8182                 if_fam = bf_get(lpfc_sli_intf_sli_family,
8183                                 &phba->sli4_hba.sli_intf);
8184                 if (phba->sli4_hba.extents_in_use &&
8185                     phba->sli4_hba.rpi_hdrs_in_use) {
8186                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8187                                         "2999 Unsupported SLI4 Parameters "
8188                                         "Extents and RPI headers enabled.\n");
8189                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8190                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
8191                                 mempool_free(mboxq, phba->mbox_mem_pool);
8192                                 rc = -EIO;
8193                                 goto out_free_bsmbx;
8194                         }
8195                 }
8196                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8197                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
8198                         mempool_free(mboxq, phba->mbox_mem_pool);
8199                         rc = -EIO;
8200                         goto out_free_bsmbx;
8201                 }
8202         }
8203
8204         /*
8205          * 1 for cmd, 1 for rsp, NVME adds an extra one
8206          * for boundary conditions in its max_sgl_segment template.
8207          */
8208         extra = 2;
8209         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
8210                 extra++;
8211
8212         /*
8213          * It doesn't matter what family our adapter is in, we are
8214          * limited to 2 Pages, 512 SGEs, for our SGL.
8215          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
8216          */
8217         max_buf_size = (2 * SLI4_PAGE_SIZE);
8218
8219         /*
8220          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
8221          * used to create the sg_dma_buf_pool must be calculated.
8222          */
8223         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
8224                 /* Both cfg_enable_bg and cfg_external_dif code paths */
8225
8226                 /*
8227                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
8228                  * the FCP rsp, and a SGE. Sice we have no control
8229                  * over how many protection segments the SCSI Layer
8230                  * will hand us (ie: there could be one for every block
8231                  * in the IO), just allocate enough SGEs to accomidate
8232                  * our max amount and we need to limit lpfc_sg_seg_cnt
8233                  * to minimize the risk of running out.
8234                  */
8235                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd32) +
8236                                 sizeof(struct fcp_rsp) + max_buf_size;
8237
8238                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
8239                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
8240
8241                 /*
8242                  * If supporting DIF, reduce the seg count for scsi to
8243                  * allow room for the DIF sges.
8244                  */
8245                 if (phba->cfg_enable_bg &&
8246                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
8247                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
8248                 else
8249                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8250
8251         } else {
8252                 /*
8253                  * The scsi_buf for a regular I/O holds the FCP cmnd,
8254                  * the FCP rsp, a SGE for each, and a SGE for up to
8255                  * cfg_sg_seg_cnt data segments.
8256                  */
8257                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd32) +
8258                                 sizeof(struct fcp_rsp) +
8259                                 ((phba->cfg_sg_seg_cnt + extra) *
8260                                 sizeof(struct sli4_sge));
8261
8262                 /* Total SGEs for scsi_sg_list */
8263                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
8264                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8265
8266                 /*
8267                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
8268                  * need to post 1 page for the SGL.
8269                  */
8270         }
8271
8272         if (phba->cfg_xpsgl && !phba->nvmet_support)
8273                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
8274         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
8275                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
8276         else
8277                 phba->cfg_sg_dma_buf_size =
8278                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
8279
8280         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
8281                                sizeof(struct sli4_sge);
8282
8283         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
8284         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8285                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
8286                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
8287                                         "6300 Reducing NVME sg segment "
8288                                         "cnt to %d\n",
8289                                         LPFC_MAX_NVME_SEG_CNT);
8290                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
8291                 } else
8292                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
8293         }
8294
8295         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
8296                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
8297                         "total:%d scsi:%d nvme:%d\n",
8298                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
8299                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
8300                         phba->cfg_nvme_seg_cnt);
8301
8302         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
8303                 i = phba->cfg_sg_dma_buf_size;
8304         else
8305                 i = SLI4_PAGE_SIZE;
8306
8307         phba->lpfc_sg_dma_buf_pool =
8308                         dma_pool_create("lpfc_sg_dma_buf_pool",
8309                                         &phba->pcidev->dev,
8310                                         phba->cfg_sg_dma_buf_size,
8311                                         i, 0);
8312         if (!phba->lpfc_sg_dma_buf_pool) {
8313                 rc = -ENOMEM;
8314                 goto out_free_bsmbx;
8315         }
8316
8317         phba->lpfc_cmd_rsp_buf_pool =
8318                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
8319                                         &phba->pcidev->dev,
8320                                         sizeof(struct fcp_cmnd32) +
8321                                         sizeof(struct fcp_rsp),
8322                                         i, 0);
8323         if (!phba->lpfc_cmd_rsp_buf_pool) {
8324                 rc = -ENOMEM;
8325                 goto out_free_sg_dma_buf;
8326         }
8327
8328         mempool_free(mboxq, phba->mbox_mem_pool);
8329
8330         /* Verify OAS is supported */
8331         lpfc_sli4_oas_verify(phba);
8332
8333         /* Verify RAS support on adapter */
8334         lpfc_sli4_ras_init(phba);
8335
8336         /* Verify all the SLI4 queues */
8337         rc = lpfc_sli4_queue_verify(phba);
8338         if (rc)
8339                 goto out_free_cmd_rsp_buf;
8340
8341         /* Create driver internal CQE event pool */
8342         rc = lpfc_sli4_cq_event_pool_create(phba);
8343         if (rc)
8344                 goto out_free_cmd_rsp_buf;
8345
8346         /* Initialize sgl lists per host */
8347         lpfc_init_sgl_list(phba);
8348
8349         /* Allocate and initialize active sgl array */
8350         rc = lpfc_init_active_sgl_array(phba);
8351         if (rc) {
8352                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8353                                 "1430 Failed to initialize sgl list.\n");
8354                 goto out_destroy_cq_event_pool;
8355         }
8356         rc = lpfc_sli4_init_rpi_hdrs(phba);
8357         if (rc) {
8358                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8359                                 "1432 Failed to initialize rpi headers.\n");
8360                 goto out_free_active_sgl;
8361         }
8362
8363         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
8364         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
8365         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
8366                                          GFP_KERNEL);
8367         if (!phba->fcf.fcf_rr_bmask) {
8368                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8369                                 "2759 Failed allocate memory for FCF round "
8370                                 "robin failover bmask\n");
8371                 rc = -ENOMEM;
8372                 goto out_remove_rpi_hdrs;
8373         }
8374
8375         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
8376                                             sizeof(struct lpfc_hba_eq_hdl),
8377                                             GFP_KERNEL);
8378         if (!phba->sli4_hba.hba_eq_hdl) {
8379                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8380                                 "2572 Failed allocate memory for "
8381                                 "fast-path per-EQ handle array\n");
8382                 rc = -ENOMEM;
8383                 goto out_free_fcf_rr_bmask;
8384         }
8385
8386         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
8387                                         sizeof(struct lpfc_vector_map_info),
8388                                         GFP_KERNEL);
8389         if (!phba->sli4_hba.cpu_map) {
8390                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8391                                 "3327 Failed allocate memory for msi-x "
8392                                 "interrupt vector mapping\n");
8393                 rc = -ENOMEM;
8394                 goto out_free_hba_eq_hdl;
8395         }
8396
8397         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
8398         if (!phba->sli4_hba.eq_info) {
8399                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8400                                 "3321 Failed allocation for per_cpu stats\n");
8401                 rc = -ENOMEM;
8402                 goto out_free_hba_cpu_map;
8403         }
8404
8405         phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
8406                                            sizeof(*phba->sli4_hba.idle_stat),
8407                                            GFP_KERNEL);
8408         if (!phba->sli4_hba.idle_stat) {
8409                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8410                                 "3390 Failed allocation for idle_stat\n");
8411                 rc = -ENOMEM;
8412                 goto out_free_hba_eq_info;
8413         }
8414
8415 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8416         phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
8417         if (!phba->sli4_hba.c_stat) {
8418                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8419                                 "3332 Failed allocating per cpu hdwq stats\n");
8420                 rc = -ENOMEM;
8421                 goto out_free_hba_idle_stat;
8422         }
8423 #endif
8424
8425         phba->cmf_stat = alloc_percpu(struct lpfc_cgn_stat);
8426         if (!phba->cmf_stat) {
8427                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8428                                 "3331 Failed allocating per cpu cgn stats\n");
8429                 rc = -ENOMEM;
8430                 goto out_free_hba_hdwq_info;
8431         }
8432
8433         /*
8434          * Enable sr-iov virtual functions if supported and configured
8435          * through the module parameter.
8436          */
8437         if (phba->cfg_sriov_nr_virtfn > 0) {
8438                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
8439                                                  phba->cfg_sriov_nr_virtfn);
8440                 if (rc) {
8441                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8442                                         "3020 Requested number of SR-IOV "
8443                                         "virtual functions (%d) is not "
8444                                         "supported\n",
8445                                         phba->cfg_sriov_nr_virtfn);
8446                         phba->cfg_sriov_nr_virtfn = 0;
8447                 }
8448         }
8449
8450         return 0;
8451
8452 out_free_hba_hdwq_info:
8453 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8454         free_percpu(phba->sli4_hba.c_stat);
8455 out_free_hba_idle_stat:
8456 #endif
8457         kfree(phba->sli4_hba.idle_stat);
8458 out_free_hba_eq_info:
8459         free_percpu(phba->sli4_hba.eq_info);
8460 out_free_hba_cpu_map:
8461         kfree(phba->sli4_hba.cpu_map);
8462 out_free_hba_eq_hdl:
8463         kfree(phba->sli4_hba.hba_eq_hdl);
8464 out_free_fcf_rr_bmask:
8465         kfree(phba->fcf.fcf_rr_bmask);
8466 out_remove_rpi_hdrs:
8467         lpfc_sli4_remove_rpi_hdrs(phba);
8468 out_free_active_sgl:
8469         lpfc_free_active_sgl(phba);
8470 out_destroy_cq_event_pool:
8471         lpfc_sli4_cq_event_pool_destroy(phba);
8472 out_free_cmd_rsp_buf:
8473         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
8474         phba->lpfc_cmd_rsp_buf_pool = NULL;
8475 out_free_sg_dma_buf:
8476         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
8477         phba->lpfc_sg_dma_buf_pool = NULL;
8478 out_free_bsmbx:
8479         lpfc_destroy_bootstrap_mbox(phba);
8480 out_free_mem:
8481         lpfc_mem_free(phba);
8482 out_destroy_workqueue:
8483         destroy_workqueue(phba->wq);
8484         phba->wq = NULL;
8485         return rc;
8486 }
8487
8488 /**
8489  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
8490  * @phba: pointer to lpfc hba data structure.
8491  *
8492  * This routine is invoked to unset the driver internal resources set up
8493  * specific for supporting the SLI-4 HBA device it attached to.
8494  **/
8495 static void
8496 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
8497 {
8498         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
8499
8500         free_percpu(phba->sli4_hba.eq_info);
8501 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8502         free_percpu(phba->sli4_hba.c_stat);
8503 #endif
8504         free_percpu(phba->cmf_stat);
8505         kfree(phba->sli4_hba.idle_stat);
8506
8507         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
8508         kfree(phba->sli4_hba.cpu_map);
8509         phba->sli4_hba.num_possible_cpu = 0;
8510         phba->sli4_hba.num_present_cpu = 0;
8511         phba->sli4_hba.curr_disp_cpu = 0;
8512         cpumask_clear(&phba->sli4_hba.irq_aff_mask);
8513
8514         /* Free memory allocated for fast-path work queue handles */
8515         kfree(phba->sli4_hba.hba_eq_hdl);
8516
8517         /* Free the allocated rpi headers. */
8518         lpfc_sli4_remove_rpi_hdrs(phba);
8519         lpfc_sli4_remove_rpis(phba);
8520
8521         /* Free eligible FCF index bmask */
8522         kfree(phba->fcf.fcf_rr_bmask);
8523
8524         /* Free the ELS sgl list */
8525         lpfc_free_active_sgl(phba);
8526         lpfc_free_els_sgl_list(phba);
8527         lpfc_free_nvmet_sgl_list(phba);
8528
8529         /* Free the completion queue EQ event pool */
8530         lpfc_sli4_cq_event_release_all(phba);
8531         lpfc_sli4_cq_event_pool_destroy(phba);
8532
8533         /* Release resource identifiers. */
8534         lpfc_sli4_dealloc_resource_identifiers(phba);
8535
8536         /* Free the bsmbx region. */
8537         lpfc_destroy_bootstrap_mbox(phba);
8538
8539         /* Free the SLI Layer memory with SLI4 HBAs */
8540         lpfc_mem_free_all(phba);
8541
8542         /* Free the current connect table */
8543         list_for_each_entry_safe(conn_entry, next_conn_entry,
8544                 &phba->fcf_conn_rec_list, list) {
8545                 list_del_init(&conn_entry->list);
8546                 kfree(conn_entry);
8547         }
8548
8549         return;
8550 }
8551
8552 /**
8553  * lpfc_init_api_table_setup - Set up init api function jump table
8554  * @phba: The hba struct for which this call is being executed.
8555  * @dev_grp: The HBA PCI-Device group number.
8556  *
8557  * This routine sets up the device INIT interface API function jump table
8558  * in @phba struct.
8559  *
8560  * Returns: 0 - success, -ENODEV - failure.
8561  **/
8562 int
8563 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8564 {
8565         phba->lpfc_hba_init_link = lpfc_hba_init_link;
8566         phba->lpfc_hba_down_link = lpfc_hba_down_link;
8567         phba->lpfc_selective_reset = lpfc_selective_reset;
8568         switch (dev_grp) {
8569         case LPFC_PCI_DEV_LP:
8570                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
8571                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
8572                 phba->lpfc_stop_port = lpfc_stop_port_s3;
8573                 break;
8574         case LPFC_PCI_DEV_OC:
8575                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
8576                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
8577                 phba->lpfc_stop_port = lpfc_stop_port_s4;
8578                 break;
8579         default:
8580                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8581                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
8582                                 dev_grp);
8583                 return -ENODEV;
8584         }
8585         return 0;
8586 }
8587
8588 /**
8589  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
8590  * @phba: pointer to lpfc hba data structure.
8591  *
8592  * This routine is invoked to set up the driver internal resources after the
8593  * device specific resource setup to support the HBA device it attached to.
8594  *
8595  * Return codes
8596  *      0 - successful
8597  *      other values - error
8598  **/
8599 static int
8600 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
8601 {
8602         int error;
8603
8604         /* Startup the kernel thread for this host adapter. */
8605         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8606                                           "lpfc_worker_%d", phba->brd_no);
8607         if (IS_ERR(phba->worker_thread)) {
8608                 error = PTR_ERR(phba->worker_thread);
8609                 return error;
8610         }
8611
8612         return 0;
8613 }
8614
8615 /**
8616  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
8617  * @phba: pointer to lpfc hba data structure.
8618  *
8619  * This routine is invoked to unset the driver internal resources set up after
8620  * the device specific resource setup for supporting the HBA device it
8621  * attached to.
8622  **/
8623 static void
8624 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
8625 {
8626         if (phba->wq) {
8627                 destroy_workqueue(phba->wq);
8628                 phba->wq = NULL;
8629         }
8630
8631         /* Stop kernel worker thread */
8632         if (phba->worker_thread)
8633                 kthread_stop(phba->worker_thread);
8634 }
8635
8636 /**
8637  * lpfc_free_iocb_list - Free iocb list.
8638  * @phba: pointer to lpfc hba data structure.
8639  *
8640  * This routine is invoked to free the driver's IOCB list and memory.
8641  **/
8642 void
8643 lpfc_free_iocb_list(struct lpfc_hba *phba)
8644 {
8645         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
8646
8647         spin_lock_irq(&phba->hbalock);
8648         list_for_each_entry_safe(iocbq_entry, iocbq_next,
8649                                  &phba->lpfc_iocb_list, list) {
8650                 list_del(&iocbq_entry->list);
8651                 kfree(iocbq_entry);
8652                 phba->total_iocbq_bufs--;
8653         }
8654         spin_unlock_irq(&phba->hbalock);
8655
8656         return;
8657 }
8658
8659 /**
8660  * lpfc_init_iocb_list - Allocate and initialize iocb list.
8661  * @phba: pointer to lpfc hba data structure.
8662  * @iocb_count: number of requested iocbs
8663  *
8664  * This routine is invoked to allocate and initizlize the driver's IOCB
8665  * list and set up the IOCB tag array accordingly.
8666  *
8667  * Return codes
8668  *      0 - successful
8669  *      other values - error
8670  **/
8671 int
8672 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
8673 {
8674         struct lpfc_iocbq *iocbq_entry = NULL;
8675         uint16_t iotag;
8676         int i;
8677
8678         /* Initialize and populate the iocb list per host.  */
8679         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
8680         for (i = 0; i < iocb_count; i++) {
8681                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
8682                 if (iocbq_entry == NULL) {
8683                         printk(KERN_ERR "%s: only allocated %d iocbs of "
8684                                 "expected %d count. Unloading driver.\n",
8685                                 __func__, i, iocb_count);
8686                         goto out_free_iocbq;
8687                 }
8688
8689                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
8690                 if (iotag == 0) {
8691                         kfree(iocbq_entry);
8692                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
8693                                 "Unloading driver.\n", __func__);
8694                         goto out_free_iocbq;
8695                 }
8696                 iocbq_entry->sli4_lxritag = NO_XRI;
8697                 iocbq_entry->sli4_xritag = NO_XRI;
8698
8699                 spin_lock_irq(&phba->hbalock);
8700                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
8701                 phba->total_iocbq_bufs++;
8702                 spin_unlock_irq(&phba->hbalock);
8703         }
8704
8705         return 0;
8706
8707 out_free_iocbq:
8708         lpfc_free_iocb_list(phba);
8709
8710         return -ENOMEM;
8711 }
8712
8713 /**
8714  * lpfc_free_sgl_list - Free a given sgl list.
8715  * @phba: pointer to lpfc hba data structure.
8716  * @sglq_list: pointer to the head of sgl list.
8717  *
8718  * This routine is invoked to free a give sgl list and memory.
8719  **/
8720 void
8721 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
8722 {
8723         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8724
8725         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
8726                 list_del(&sglq_entry->list);
8727                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
8728                 kfree(sglq_entry);
8729         }
8730 }
8731
8732 /**
8733  * lpfc_free_els_sgl_list - Free els sgl list.
8734  * @phba: pointer to lpfc hba data structure.
8735  *
8736  * This routine is invoked to free the driver's els sgl list and memory.
8737  **/
8738 static void
8739 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
8740 {
8741         LIST_HEAD(sglq_list);
8742
8743         /* Retrieve all els sgls from driver list */
8744         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
8745         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
8746         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
8747
8748         /* Now free the sgl list */
8749         lpfc_free_sgl_list(phba, &sglq_list);
8750 }
8751
8752 /**
8753  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
8754  * @phba: pointer to lpfc hba data structure.
8755  *
8756  * This routine is invoked to free the driver's nvmet sgl list and memory.
8757  **/
8758 static void
8759 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
8760 {
8761         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8762         LIST_HEAD(sglq_list);
8763
8764         /* Retrieve all nvmet sgls from driver list */
8765         spin_lock_irq(&phba->hbalock);
8766         spin_lock(&phba->sli4_hba.sgl_list_lock);
8767         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
8768         spin_unlock(&phba->sli4_hba.sgl_list_lock);
8769         spin_unlock_irq(&phba->hbalock);
8770
8771         /* Now free the sgl list */
8772         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
8773                 list_del(&sglq_entry->list);
8774                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
8775                 kfree(sglq_entry);
8776         }
8777
8778         /* Update the nvmet_xri_cnt to reflect no current sgls.
8779          * The next initialization cycle sets the count and allocates
8780          * the sgls over again.
8781          */
8782         phba->sli4_hba.nvmet_xri_cnt = 0;
8783 }
8784
8785 /**
8786  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
8787  * @phba: pointer to lpfc hba data structure.
8788  *
8789  * This routine is invoked to allocate the driver's active sgl memory.
8790  * This array will hold the sglq_entry's for active IOs.
8791  **/
8792 static int
8793 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
8794 {
8795         int size;
8796         size = sizeof(struct lpfc_sglq *);
8797         size *= phba->sli4_hba.max_cfg_param.max_xri;
8798
8799         phba->sli4_hba.lpfc_sglq_active_list =
8800                 kzalloc(size, GFP_KERNEL);
8801         if (!phba->sli4_hba.lpfc_sglq_active_list)
8802                 return -ENOMEM;
8803         return 0;
8804 }
8805
8806 /**
8807  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
8808  * @phba: pointer to lpfc hba data structure.
8809  *
8810  * This routine is invoked to walk through the array of active sglq entries
8811  * and free all of the resources.
8812  * This is just a place holder for now.
8813  **/
8814 static void
8815 lpfc_free_active_sgl(struct lpfc_hba *phba)
8816 {
8817         kfree(phba->sli4_hba.lpfc_sglq_active_list);
8818 }
8819
8820 /**
8821  * lpfc_init_sgl_list - Allocate and initialize sgl list.
8822  * @phba: pointer to lpfc hba data structure.
8823  *
8824  * This routine is invoked to allocate and initizlize the driver's sgl
8825  * list and set up the sgl xritag tag array accordingly.
8826  *
8827  **/
8828 static void
8829 lpfc_init_sgl_list(struct lpfc_hba *phba)
8830 {
8831         /* Initialize and populate the sglq list per host/VF. */
8832         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
8833         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8834         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
8835         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8836
8837         /* els xri-sgl book keeping */
8838         phba->sli4_hba.els_xri_cnt = 0;
8839
8840         /* nvme xri-buffer book keeping */
8841         phba->sli4_hba.io_xri_cnt = 0;
8842 }
8843
8844 /**
8845  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
8846  * @phba: pointer to lpfc hba data structure.
8847  *
8848  * This routine is invoked to post rpi header templates to the
8849  * port for those SLI4 ports that do not support extents.  This routine
8850  * posts a PAGE_SIZE memory region to the port to hold up to
8851  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
8852  * and should be called only when interrupts are disabled.
8853  *
8854  * Return codes
8855  *      0 - successful
8856  *      -ERROR - otherwise.
8857  **/
8858 int
8859 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
8860 {
8861         int rc = 0;
8862         struct lpfc_rpi_hdr *rpi_hdr;
8863
8864         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
8865         if (!phba->sli4_hba.rpi_hdrs_in_use)
8866                 return rc;
8867         if (phba->sli4_hba.extents_in_use)
8868                 return -EIO;
8869
8870         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
8871         if (!rpi_hdr) {
8872                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8873                                 "0391 Error during rpi post operation\n");
8874                 lpfc_sli4_remove_rpis(phba);
8875                 rc = -ENODEV;
8876         }
8877
8878         return rc;
8879 }
8880
8881 /**
8882  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
8883  * @phba: pointer to lpfc hba data structure.
8884  *
8885  * This routine is invoked to allocate a single 4KB memory region to
8886  * support rpis and stores them in the phba.  This single region
8887  * provides support for up to 64 rpis.  The region is used globally
8888  * by the device.
8889  *
8890  * Returns:
8891  *   A valid rpi hdr on success.
8892  *   A NULL pointer on any failure.
8893  **/
8894 struct lpfc_rpi_hdr *
8895 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
8896 {
8897         uint16_t rpi_limit, curr_rpi_range;
8898         struct lpfc_dmabuf *dmabuf;
8899         struct lpfc_rpi_hdr *rpi_hdr;
8900
8901         /*
8902          * If the SLI4 port supports extents, posting the rpi header isn't
8903          * required.  Set the expected maximum count and let the actual value
8904          * get set when extents are fully allocated.
8905          */
8906         if (!phba->sli4_hba.rpi_hdrs_in_use)
8907                 return NULL;
8908         if (phba->sli4_hba.extents_in_use)
8909                 return NULL;
8910
8911         /* The limit on the logical index is just the max_rpi count. */
8912         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
8913
8914         spin_lock_irq(&phba->hbalock);
8915         /*
8916          * Establish the starting RPI in this header block.  The starting
8917          * rpi is normalized to a zero base because the physical rpi is
8918          * port based.
8919          */
8920         curr_rpi_range = phba->sli4_hba.next_rpi;
8921         spin_unlock_irq(&phba->hbalock);
8922
8923         /* Reached full RPI range */
8924         if (curr_rpi_range == rpi_limit)
8925                 return NULL;
8926
8927         /*
8928          * First allocate the protocol header region for the port.  The
8929          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
8930          */
8931         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8932         if (!dmabuf)
8933                 return NULL;
8934
8935         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8936                                           LPFC_HDR_TEMPLATE_SIZE,
8937                                           &dmabuf->phys, GFP_KERNEL);
8938         if (!dmabuf->virt) {
8939                 rpi_hdr = NULL;
8940                 goto err_free_dmabuf;
8941         }
8942
8943         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
8944                 rpi_hdr = NULL;
8945                 goto err_free_coherent;
8946         }
8947
8948         /* Save the rpi header data for cleanup later. */
8949         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
8950         if (!rpi_hdr)
8951                 goto err_free_coherent;
8952
8953         rpi_hdr->dmabuf = dmabuf;
8954         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
8955         rpi_hdr->page_count = 1;
8956         spin_lock_irq(&phba->hbalock);
8957
8958         /* The rpi_hdr stores the logical index only. */
8959         rpi_hdr->start_rpi = curr_rpi_range;
8960         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
8961         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
8962
8963         spin_unlock_irq(&phba->hbalock);
8964         return rpi_hdr;
8965
8966  err_free_coherent:
8967         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
8968                           dmabuf->virt, dmabuf->phys);
8969  err_free_dmabuf:
8970         kfree(dmabuf);
8971         return NULL;
8972 }
8973
8974 /**
8975  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
8976  * @phba: pointer to lpfc hba data structure.
8977  *
8978  * This routine is invoked to remove all memory resources allocated
8979  * to support rpis for SLI4 ports not supporting extents. This routine
8980  * presumes the caller has released all rpis consumed by fabric or port
8981  * logins and is prepared to have the header pages removed.
8982  **/
8983 void
8984 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
8985 {
8986         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
8987
8988         if (!phba->sli4_hba.rpi_hdrs_in_use)
8989                 goto exit;
8990
8991         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
8992                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
8993                 list_del(&rpi_hdr->list);
8994                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
8995                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
8996                 kfree(rpi_hdr->dmabuf);
8997                 kfree(rpi_hdr);
8998         }
8999  exit:
9000         /* There are no rpis available to the port now. */
9001         phba->sli4_hba.next_rpi = 0;
9002 }
9003
9004 /**
9005  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
9006  * @pdev: pointer to pci device data structure.
9007  *
9008  * This routine is invoked to allocate the driver hba data structure for an
9009  * HBA device. If the allocation is successful, the phba reference to the
9010  * PCI device data structure is set.
9011  *
9012  * Return codes
9013  *      pointer to @phba - successful
9014  *      NULL - error
9015  **/
9016 static struct lpfc_hba *
9017 lpfc_hba_alloc(struct pci_dev *pdev)
9018 {
9019         struct lpfc_hba *phba;
9020
9021         /* Allocate memory for HBA structure */
9022         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
9023         if (!phba) {
9024                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
9025                 return NULL;
9026         }
9027
9028         /* Set reference to PCI device in HBA structure */
9029         phba->pcidev = pdev;
9030
9031         /* Assign an unused board number */
9032         phba->brd_no = lpfc_get_instance();
9033         if (phba->brd_no < 0) {
9034                 kfree(phba);
9035                 return NULL;
9036         }
9037         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
9038
9039         spin_lock_init(&phba->ct_ev_lock);
9040         INIT_LIST_HEAD(&phba->ct_ev_waiters);
9041
9042         return phba;
9043 }
9044
9045 /**
9046  * lpfc_hba_free - Free driver hba data structure with a device.
9047  * @phba: pointer to lpfc hba data structure.
9048  *
9049  * This routine is invoked to free the driver hba data structure with an
9050  * HBA device.
9051  **/
9052 static void
9053 lpfc_hba_free(struct lpfc_hba *phba)
9054 {
9055         if (phba->sli_rev == LPFC_SLI_REV4)
9056                 kfree(phba->sli4_hba.hdwq);
9057
9058         /* Release the driver assigned board number */
9059         idr_remove(&lpfc_hba_index, phba->brd_no);
9060
9061         /* Free memory allocated with sli3 rings */
9062         kfree(phba->sli.sli3_ring);
9063         phba->sli.sli3_ring = NULL;
9064
9065         kfree(phba);
9066         return;
9067 }
9068
9069 /**
9070  * lpfc_setup_fdmi_mask - Setup initial FDMI mask for HBA and Port attributes
9071  * @vport: pointer to lpfc vport data structure.
9072  *
9073  * This routine is will setup initial FDMI attribute masks for
9074  * FDMI2 or SmartSAN depending on module parameters. The driver will attempt
9075  * to get these attributes first before falling back, the attribute
9076  * fallback hierarchy is SmartSAN -> FDMI2 -> FMDI1
9077  **/
9078 void
9079 lpfc_setup_fdmi_mask(struct lpfc_vport *vport)
9080 {
9081         struct lpfc_hba *phba = vport->phba;
9082
9083         set_bit(FC_ALLOW_FDMI, &vport->load_flag);
9084         if (phba->cfg_enable_SmartSAN ||
9085             phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT) {
9086                 /* Setup appropriate attribute masks */
9087                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
9088                 if (phba->cfg_enable_SmartSAN)
9089                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
9090                 else
9091                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
9092         }
9093
9094         lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
9095                         "6077 Setup FDMI mask: hba x%x port x%x\n",
9096                         vport->fdmi_hba_mask, vport->fdmi_port_mask);
9097 }
9098
9099 /**
9100  * lpfc_create_shost - Create hba physical port with associated scsi host.
9101  * @phba: pointer to lpfc hba data structure.
9102  *
9103  * This routine is invoked to create HBA physical port and associate a SCSI
9104  * host with it.
9105  *
9106  * Return codes
9107  *      0 - successful
9108  *      other values - error
9109  **/
9110 static int
9111 lpfc_create_shost(struct lpfc_hba *phba)
9112 {
9113         struct lpfc_vport *vport;
9114         struct Scsi_Host  *shost;
9115
9116         /* Initialize HBA FC structure */
9117         phba->fc_edtov = FF_DEF_EDTOV;
9118         phba->fc_ratov = FF_DEF_RATOV;
9119         phba->fc_altov = FF_DEF_ALTOV;
9120         phba->fc_arbtov = FF_DEF_ARBTOV;
9121
9122         atomic_set(&phba->sdev_cnt, 0);
9123         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
9124         if (!vport)
9125                 return -ENODEV;
9126
9127         shost = lpfc_shost_from_vport(vport);
9128         phba->pport = vport;
9129
9130         if (phba->nvmet_support) {
9131                 /* Only 1 vport (pport) will support NVME target */
9132                 phba->targetport = NULL;
9133                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
9134                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
9135                                 "6076 NVME Target Found\n");
9136         }
9137
9138         lpfc_debugfs_initialize(vport);
9139         /* Put reference to SCSI host to driver's device private data */
9140         pci_set_drvdata(phba->pcidev, shost);
9141
9142         lpfc_setup_fdmi_mask(vport);
9143
9144         /*
9145          * At this point we are fully registered with PSA. In addition,
9146          * any initial discovery should be completed.
9147          */
9148         return 0;
9149 }
9150
9151 /**
9152  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
9153  * @phba: pointer to lpfc hba data structure.
9154  *
9155  * This routine is invoked to destroy HBA physical port and the associated
9156  * SCSI host.
9157  **/
9158 static void
9159 lpfc_destroy_shost(struct lpfc_hba *phba)
9160 {
9161         struct lpfc_vport *vport = phba->pport;
9162
9163         /* Destroy physical port that associated with the SCSI host */
9164         destroy_port(vport);
9165
9166         return;
9167 }
9168
9169 /**
9170  * lpfc_setup_bg - Setup Block guard structures and debug areas.
9171  * @phba: pointer to lpfc hba data structure.
9172  * @shost: the shost to be used to detect Block guard settings.
9173  *
9174  * This routine sets up the local Block guard protocol settings for @shost.
9175  * This routine also allocates memory for debugging bg buffers.
9176  **/
9177 static void
9178 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
9179 {
9180         uint32_t old_mask;
9181         uint32_t old_guard;
9182
9183         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9184                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9185                                 "1478 Registering BlockGuard with the "
9186                                 "SCSI layer\n");
9187
9188                 old_mask = phba->cfg_prot_mask;
9189                 old_guard = phba->cfg_prot_guard;
9190
9191                 /* Only allow supported values */
9192                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
9193                         SHOST_DIX_TYPE0_PROTECTION |
9194                         SHOST_DIX_TYPE1_PROTECTION);
9195                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
9196                                          SHOST_DIX_GUARD_CRC);
9197
9198                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
9199                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
9200                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
9201
9202                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9203                         if ((old_mask != phba->cfg_prot_mask) ||
9204                                 (old_guard != phba->cfg_prot_guard))
9205                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9206                                         "1475 Registering BlockGuard with the "
9207                                         "SCSI layer: mask %d  guard %d\n",
9208                                         phba->cfg_prot_mask,
9209                                         phba->cfg_prot_guard);
9210
9211                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
9212                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
9213                 } else
9214                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9215                                 "1479 Not Registering BlockGuard with the SCSI "
9216                                 "layer, Bad protection parameters: %d %d\n",
9217                                 old_mask, old_guard);
9218         }
9219 }
9220
9221 /**
9222  * lpfc_post_init_setup - Perform necessary device post initialization setup.
9223  * @phba: pointer to lpfc hba data structure.
9224  *
9225  * This routine is invoked to perform all the necessary post initialization
9226  * setup for the device.
9227  **/
9228 static void
9229 lpfc_post_init_setup(struct lpfc_hba *phba)
9230 {
9231         struct Scsi_Host  *shost;
9232         struct lpfc_adapter_event_header adapter_event;
9233
9234         /* Get the default values for Model Name and Description */
9235         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9236
9237         /*
9238          * hba setup may have changed the hba_queue_depth so we need to
9239          * adjust the value of can_queue.
9240          */
9241         shost = pci_get_drvdata(phba->pcidev);
9242         shost->can_queue = phba->cfg_hba_queue_depth - 10;
9243
9244         lpfc_host_attrib_init(shost);
9245
9246         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9247                 spin_lock_irq(shost->host_lock);
9248                 lpfc_poll_start_timer(phba);
9249                 spin_unlock_irq(shost->host_lock);
9250         }
9251
9252         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9253                         "0428 Perform SCSI scan\n");
9254         /* Send board arrival event to upper layer */
9255         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
9256         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
9257         fc_host_post_vendor_event(shost, fc_get_event_number(),
9258                                   sizeof(adapter_event),
9259                                   (char *) &adapter_event,
9260                                   LPFC_NL_VENDOR_ID);
9261         return;
9262 }
9263
9264 /**
9265  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
9266  * @phba: pointer to lpfc hba data structure.
9267  *
9268  * This routine is invoked to set up the PCI device memory space for device
9269  * with SLI-3 interface spec.
9270  *
9271  * Return codes
9272  *      0 - successful
9273  *      other values - error
9274  **/
9275 static int
9276 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
9277 {
9278         struct pci_dev *pdev = phba->pcidev;
9279         unsigned long bar0map_len, bar2map_len;
9280         int i, hbq_count;
9281         void *ptr;
9282         int error;
9283
9284         if (!pdev)
9285                 return -ENODEV;
9286
9287         /* Set the device DMA mask size */
9288         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
9289         if (error)
9290                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
9291         if (error)
9292                 return error;
9293         error = -ENODEV;
9294
9295         /* Get the bus address of Bar0 and Bar2 and the number of bytes
9296          * required by each mapping.
9297          */
9298         phba->pci_bar0_map = pci_resource_start(pdev, 0);
9299         bar0map_len = pci_resource_len(pdev, 0);
9300
9301         phba->pci_bar2_map = pci_resource_start(pdev, 2);
9302         bar2map_len = pci_resource_len(pdev, 2);
9303
9304         /* Map HBA SLIM to a kernel virtual address. */
9305         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
9306         if (!phba->slim_memmap_p) {
9307                 dev_printk(KERN_ERR, &pdev->dev,
9308                            "ioremap failed for SLIM memory.\n");
9309                 goto out;
9310         }
9311
9312         /* Map HBA Control Registers to a kernel virtual address. */
9313         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
9314         if (!phba->ctrl_regs_memmap_p) {
9315                 dev_printk(KERN_ERR, &pdev->dev,
9316                            "ioremap failed for HBA control registers.\n");
9317                 goto out_iounmap_slim;
9318         }
9319
9320         /* Allocate memory for SLI-2 structures */
9321         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9322                                                &phba->slim2p.phys, GFP_KERNEL);
9323         if (!phba->slim2p.virt)
9324                 goto out_iounmap;
9325
9326         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
9327         phba->mbox_ext = (phba->slim2p.virt +
9328                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
9329         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
9330         phba->IOCBs = (phba->slim2p.virt +
9331                        offsetof(struct lpfc_sli2_slim, IOCBs));
9332
9333         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
9334                                                  lpfc_sli_hbq_size(),
9335                                                  &phba->hbqslimp.phys,
9336                                                  GFP_KERNEL);
9337         if (!phba->hbqslimp.virt)
9338                 goto out_free_slim;
9339
9340         hbq_count = lpfc_sli_hbq_count();
9341         ptr = phba->hbqslimp.virt;
9342         for (i = 0; i < hbq_count; ++i) {
9343                 phba->hbqs[i].hbq_virt = ptr;
9344                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
9345                 ptr += (lpfc_hbq_defs[i]->entry_count *
9346                         sizeof(struct lpfc_hbq_entry));
9347         }
9348         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
9349         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
9350
9351         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
9352
9353         phba->MBslimaddr = phba->slim_memmap_p;
9354         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
9355         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
9356         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
9357         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
9358
9359         return 0;
9360
9361 out_free_slim:
9362         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9363                           phba->slim2p.virt, phba->slim2p.phys);
9364 out_iounmap:
9365         iounmap(phba->ctrl_regs_memmap_p);
9366 out_iounmap_slim:
9367         iounmap(phba->slim_memmap_p);
9368 out:
9369         return error;
9370 }
9371
9372 /**
9373  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
9374  * @phba: pointer to lpfc hba data structure.
9375  *
9376  * This routine is invoked to unset the PCI device memory space for device
9377  * with SLI-3 interface spec.
9378  **/
9379 static void
9380 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
9381 {
9382         struct pci_dev *pdev;
9383
9384         /* Obtain PCI device reference */
9385         if (!phba->pcidev)
9386                 return;
9387         else
9388                 pdev = phba->pcidev;
9389
9390         /* Free coherent DMA memory allocated */
9391         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9392                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9393         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9394                           phba->slim2p.virt, phba->slim2p.phys);
9395
9396         /* I/O memory unmap */
9397         iounmap(phba->ctrl_regs_memmap_p);
9398         iounmap(phba->slim_memmap_p);
9399
9400         return;
9401 }
9402
9403 /**
9404  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
9405  * @phba: pointer to lpfc hba data structure.
9406  *
9407  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
9408  * done and check status.
9409  *
9410  * Return 0 if successful, otherwise -ENODEV.
9411  **/
9412 int
9413 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
9414 {
9415         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
9416         struct lpfc_register reg_data;
9417         int i, port_error = 0;
9418         uint32_t if_type;
9419
9420         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
9421         memset(&reg_data, 0, sizeof(reg_data));
9422         if (!phba->sli4_hba.PSMPHRregaddr)
9423                 return -ENODEV;
9424
9425         /* Wait up to 30 seconds for the SLI Port POST done and ready */
9426         for (i = 0; i < 3000; i++) {
9427                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
9428                         &portsmphr_reg.word0) ||
9429                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
9430                         /* Port has a fatal POST error, break out */
9431                         port_error = -ENODEV;
9432                         break;
9433                 }
9434                 if (LPFC_POST_STAGE_PORT_READY ==
9435                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
9436                         break;
9437                 msleep(10);
9438         }
9439
9440         /*
9441          * If there was a port error during POST, then don't proceed with
9442          * other register reads as the data may not be valid.  Just exit.
9443          */
9444         if (port_error) {
9445                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9446                         "1408 Port Failed POST - portsmphr=0x%x, "
9447                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
9448                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
9449                         portsmphr_reg.word0,
9450                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
9451                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
9452                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
9453                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
9454                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
9455                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
9456                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
9457                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
9458         } else {
9459                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9460                                 "2534 Device Info: SLIFamily=0x%x, "
9461                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
9462                                 "SLIHint_2=0x%x, FT=0x%x\n",
9463                                 bf_get(lpfc_sli_intf_sli_family,
9464                                        &phba->sli4_hba.sli_intf),
9465                                 bf_get(lpfc_sli_intf_slirev,
9466                                        &phba->sli4_hba.sli_intf),
9467                                 bf_get(lpfc_sli_intf_if_type,
9468                                        &phba->sli4_hba.sli_intf),
9469                                 bf_get(lpfc_sli_intf_sli_hint1,
9470                                        &phba->sli4_hba.sli_intf),
9471                                 bf_get(lpfc_sli_intf_sli_hint2,
9472                                        &phba->sli4_hba.sli_intf),
9473                                 bf_get(lpfc_sli_intf_func_type,
9474                                        &phba->sli4_hba.sli_intf));
9475                 /*
9476                  * Check for other Port errors during the initialization
9477                  * process.  Fail the load if the port did not come up
9478                  * correctly.
9479                  */
9480                 if_type = bf_get(lpfc_sli_intf_if_type,
9481                                  &phba->sli4_hba.sli_intf);
9482                 switch (if_type) {
9483                 case LPFC_SLI_INTF_IF_TYPE_0:
9484                         phba->sli4_hba.ue_mask_lo =
9485                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
9486                         phba->sli4_hba.ue_mask_hi =
9487                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
9488                         uerrlo_reg.word0 =
9489                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
9490                         uerrhi_reg.word0 =
9491                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
9492                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
9493                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
9494                                 lpfc_printf_log(phba, KERN_ERR,
9495                                                 LOG_TRACE_EVENT,
9496                                                 "1422 Unrecoverable Error "
9497                                                 "Detected during POST "
9498                                                 "uerr_lo_reg=0x%x, "
9499                                                 "uerr_hi_reg=0x%x, "
9500                                                 "ue_mask_lo_reg=0x%x, "
9501                                                 "ue_mask_hi_reg=0x%x\n",
9502                                                 uerrlo_reg.word0,
9503                                                 uerrhi_reg.word0,
9504                                                 phba->sli4_hba.ue_mask_lo,
9505                                                 phba->sli4_hba.ue_mask_hi);
9506                                 port_error = -ENODEV;
9507                         }
9508                         break;
9509                 case LPFC_SLI_INTF_IF_TYPE_2:
9510                 case LPFC_SLI_INTF_IF_TYPE_6:
9511                         /* Final checks.  The port status should be clean. */
9512                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
9513                                 &reg_data.word0) ||
9514                                 lpfc_sli4_unrecoverable_port(&reg_data)) {
9515                                 phba->work_status[0] =
9516                                         readl(phba->sli4_hba.u.if_type2.
9517                                               ERR1regaddr);
9518                                 phba->work_status[1] =
9519                                         readl(phba->sli4_hba.u.if_type2.
9520                                               ERR2regaddr);
9521                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9522                                         "2888 Unrecoverable port error "
9523                                         "following POST: port status reg "
9524                                         "0x%x, port_smphr reg 0x%x, "
9525                                         "error 1=0x%x, error 2=0x%x\n",
9526                                         reg_data.word0,
9527                                         portsmphr_reg.word0,
9528                                         phba->work_status[0],
9529                                         phba->work_status[1]);
9530                                 port_error = -ENODEV;
9531                                 break;
9532                         }
9533
9534                         if (lpfc_pldv_detect &&
9535                             bf_get(lpfc_sli_intf_sli_family,
9536                                    &phba->sli4_hba.sli_intf) ==
9537                                         LPFC_SLI_INTF_FAMILY_G6)
9538                                 pci_write_config_byte(phba->pcidev,
9539                                                       LPFC_SLI_INTF, CFG_PLD);
9540                         break;
9541                 case LPFC_SLI_INTF_IF_TYPE_1:
9542                 default:
9543                         break;
9544                 }
9545         }
9546         return port_error;
9547 }
9548
9549 /**
9550  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
9551  * @phba: pointer to lpfc hba data structure.
9552  * @if_type:  The SLI4 interface type getting configured.
9553  *
9554  * This routine is invoked to set up SLI4 BAR0 PCI config space register
9555  * memory map.
9556  **/
9557 static void
9558 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9559 {
9560         switch (if_type) {
9561         case LPFC_SLI_INTF_IF_TYPE_0:
9562                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
9563                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
9564                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
9565                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
9566                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
9567                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
9568                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
9569                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
9570                 phba->sli4_hba.SLIINTFregaddr =
9571                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9572                 break;
9573         case LPFC_SLI_INTF_IF_TYPE_2:
9574                 phba->sli4_hba.u.if_type2.EQDregaddr =
9575                         phba->sli4_hba.conf_regs_memmap_p +
9576                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9577                 phba->sli4_hba.u.if_type2.ERR1regaddr =
9578                         phba->sli4_hba.conf_regs_memmap_p +
9579                                                 LPFC_CTL_PORT_ER1_OFFSET;
9580                 phba->sli4_hba.u.if_type2.ERR2regaddr =
9581                         phba->sli4_hba.conf_regs_memmap_p +
9582                                                 LPFC_CTL_PORT_ER2_OFFSET;
9583                 phba->sli4_hba.u.if_type2.CTRLregaddr =
9584                         phba->sli4_hba.conf_regs_memmap_p +
9585                                                 LPFC_CTL_PORT_CTL_OFFSET;
9586                 phba->sli4_hba.u.if_type2.STATUSregaddr =
9587                         phba->sli4_hba.conf_regs_memmap_p +
9588                                                 LPFC_CTL_PORT_STA_OFFSET;
9589                 phba->sli4_hba.SLIINTFregaddr =
9590                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9591                 phba->sli4_hba.PSMPHRregaddr =
9592                         phba->sli4_hba.conf_regs_memmap_p +
9593                                                 LPFC_CTL_PORT_SEM_OFFSET;
9594                 phba->sli4_hba.RQDBregaddr =
9595                         phba->sli4_hba.conf_regs_memmap_p +
9596                                                 LPFC_ULP0_RQ_DOORBELL;
9597                 phba->sli4_hba.WQDBregaddr =
9598                         phba->sli4_hba.conf_regs_memmap_p +
9599                                                 LPFC_ULP0_WQ_DOORBELL;
9600                 phba->sli4_hba.CQDBregaddr =
9601                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
9602                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9603                 phba->sli4_hba.MQDBregaddr =
9604                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
9605                 phba->sli4_hba.BMBXregaddr =
9606                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9607                 break;
9608         case LPFC_SLI_INTF_IF_TYPE_6:
9609                 phba->sli4_hba.u.if_type2.EQDregaddr =
9610                         phba->sli4_hba.conf_regs_memmap_p +
9611                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9612                 phba->sli4_hba.u.if_type2.ERR1regaddr =
9613                         phba->sli4_hba.conf_regs_memmap_p +
9614                                                 LPFC_CTL_PORT_ER1_OFFSET;
9615                 phba->sli4_hba.u.if_type2.ERR2regaddr =
9616                         phba->sli4_hba.conf_regs_memmap_p +
9617                                                 LPFC_CTL_PORT_ER2_OFFSET;
9618                 phba->sli4_hba.u.if_type2.CTRLregaddr =
9619                         phba->sli4_hba.conf_regs_memmap_p +
9620                                                 LPFC_CTL_PORT_CTL_OFFSET;
9621                 phba->sli4_hba.u.if_type2.STATUSregaddr =
9622                         phba->sli4_hba.conf_regs_memmap_p +
9623                                                 LPFC_CTL_PORT_STA_OFFSET;
9624                 phba->sli4_hba.PSMPHRregaddr =
9625                         phba->sli4_hba.conf_regs_memmap_p +
9626                                                 LPFC_CTL_PORT_SEM_OFFSET;
9627                 phba->sli4_hba.BMBXregaddr =
9628                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9629                 break;
9630         case LPFC_SLI_INTF_IF_TYPE_1:
9631         default:
9632                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9633                            "FATAL - unsupported SLI4 interface type - %d\n",
9634                            if_type);
9635                 break;
9636         }
9637 }
9638
9639 /**
9640  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
9641  * @phba: pointer to lpfc hba data structure.
9642  * @if_type: sli if type to operate on.
9643  *
9644  * This routine is invoked to set up SLI4 BAR1 register memory map.
9645  **/
9646 static void
9647 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9648 {
9649         switch (if_type) {
9650         case LPFC_SLI_INTF_IF_TYPE_0:
9651                 phba->sli4_hba.PSMPHRregaddr =
9652                         phba->sli4_hba.ctrl_regs_memmap_p +
9653                         LPFC_SLIPORT_IF0_SMPHR;
9654                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9655                         LPFC_HST_ISR0;
9656                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9657                         LPFC_HST_IMR0;
9658                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9659                         LPFC_HST_ISCR0;
9660                 break;
9661         case LPFC_SLI_INTF_IF_TYPE_6:
9662                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9663                         LPFC_IF6_RQ_DOORBELL;
9664                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9665                         LPFC_IF6_WQ_DOORBELL;
9666                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9667                         LPFC_IF6_CQ_DOORBELL;
9668                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9669                         LPFC_IF6_EQ_DOORBELL;
9670                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9671                         LPFC_IF6_MQ_DOORBELL;
9672                 break;
9673         case LPFC_SLI_INTF_IF_TYPE_2:
9674         case LPFC_SLI_INTF_IF_TYPE_1:
9675         default:
9676                 dev_err(&phba->pcidev->dev,
9677                            "FATAL - unsupported SLI4 interface type - %d\n",
9678                            if_type);
9679                 break;
9680         }
9681 }
9682
9683 /**
9684  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
9685  * @phba: pointer to lpfc hba data structure.
9686  * @vf: virtual function number
9687  *
9688  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
9689  * based on the given viftual function number, @vf.
9690  *
9691  * Return 0 if successful, otherwise -ENODEV.
9692  **/
9693 static int
9694 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
9695 {
9696         if (vf > LPFC_VIR_FUNC_MAX)
9697                 return -ENODEV;
9698
9699         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9700                                 vf * LPFC_VFR_PAGE_SIZE +
9701                                         LPFC_ULP0_RQ_DOORBELL);
9702         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9703                                 vf * LPFC_VFR_PAGE_SIZE +
9704                                         LPFC_ULP0_WQ_DOORBELL);
9705         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9706                                 vf * LPFC_VFR_PAGE_SIZE +
9707                                         LPFC_EQCQ_DOORBELL);
9708         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9709         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9710                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
9711         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9712                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
9713         return 0;
9714 }
9715
9716 /**
9717  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
9718  * @phba: pointer to lpfc hba data structure.
9719  *
9720  * This routine is invoked to create the bootstrap mailbox
9721  * region consistent with the SLI-4 interface spec.  This
9722  * routine allocates all memory necessary to communicate
9723  * mailbox commands to the port and sets up all alignment
9724  * needs.  No locks are expected to be held when calling
9725  * this routine.
9726  *
9727  * Return codes
9728  *      0 - successful
9729  *      -ENOMEM - could not allocated memory.
9730  **/
9731 static int
9732 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
9733 {
9734         uint32_t bmbx_size;
9735         struct lpfc_dmabuf *dmabuf;
9736         struct dma_address *dma_address;
9737         uint32_t pa_addr;
9738         uint64_t phys_addr;
9739
9740         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9741         if (!dmabuf)
9742                 return -ENOMEM;
9743
9744         /*
9745          * The bootstrap mailbox region is comprised of 2 parts
9746          * plus an alignment restriction of 16 bytes.
9747          */
9748         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
9749         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
9750                                           &dmabuf->phys, GFP_KERNEL);
9751         if (!dmabuf->virt) {
9752                 kfree(dmabuf);
9753                 return -ENOMEM;
9754         }
9755
9756         /*
9757          * Initialize the bootstrap mailbox pointers now so that the register
9758          * operations are simple later.  The mailbox dma address is required
9759          * to be 16-byte aligned.  Also align the virtual memory as each
9760          * maibox is copied into the bmbx mailbox region before issuing the
9761          * command to the port.
9762          */
9763         phba->sli4_hba.bmbx.dmabuf = dmabuf;
9764         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
9765
9766         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
9767                                               LPFC_ALIGN_16_BYTE);
9768         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
9769                                               LPFC_ALIGN_16_BYTE);
9770
9771         /*
9772          * Set the high and low physical addresses now.  The SLI4 alignment
9773          * requirement is 16 bytes and the mailbox is posted to the port
9774          * as two 30-bit addresses.  The other data is a bit marking whether
9775          * the 30-bit address is the high or low address.
9776          * Upcast bmbx aphys to 64bits so shift instruction compiles
9777          * clean on 32 bit machines.
9778          */
9779         dma_address = &phba->sli4_hba.bmbx.dma_address;
9780         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
9781         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
9782         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
9783                                            LPFC_BMBX_BIT1_ADDR_HI);
9784
9785         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
9786         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
9787                                            LPFC_BMBX_BIT1_ADDR_LO);
9788         return 0;
9789 }
9790
9791 /**
9792  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
9793  * @phba: pointer to lpfc hba data structure.
9794  *
9795  * This routine is invoked to teardown the bootstrap mailbox
9796  * region and release all host resources. This routine requires
9797  * the caller to ensure all mailbox commands recovered, no
9798  * additional mailbox comands are sent, and interrupts are disabled
9799  * before calling this routine.
9800  *
9801  **/
9802 static void
9803 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
9804 {
9805         dma_free_coherent(&phba->pcidev->dev,
9806                           phba->sli4_hba.bmbx.bmbx_size,
9807                           phba->sli4_hba.bmbx.dmabuf->virt,
9808                           phba->sli4_hba.bmbx.dmabuf->phys);
9809
9810         kfree(phba->sli4_hba.bmbx.dmabuf);
9811         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
9812 }
9813
9814 static const char * const lpfc_topo_to_str[] = {
9815         "Loop then P2P",
9816         "Loopback",
9817         "P2P Only",
9818         "Unsupported",
9819         "Loop Only",
9820         "Unsupported",
9821         "P2P then Loop",
9822 };
9823
9824 #define LINK_FLAGS_DEF  0x0
9825 #define LINK_FLAGS_P2P  0x1
9826 #define LINK_FLAGS_LOOP 0x2
9827 /**
9828  * lpfc_map_topology - Map the topology read from READ_CONFIG
9829  * @phba: pointer to lpfc hba data structure.
9830  * @rd_config: pointer to read config data
9831  *
9832  * This routine is invoked to map the topology values as read
9833  * from the read config mailbox command. If the persistent
9834  * topology feature is supported, the firmware will provide the
9835  * saved topology information to be used in INIT_LINK
9836  **/
9837 static void
9838 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
9839 {
9840         u8 ptv, tf, pt;
9841
9842         ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
9843         tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
9844         pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
9845
9846         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9847                         "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
9848                          ptv, tf, pt);
9849         if (!ptv) {
9850                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9851                                 "2019 FW does not support persistent topology "
9852                                 "Using driver parameter defined value [%s]",
9853                                 lpfc_topo_to_str[phba->cfg_topology]);
9854                 return;
9855         }
9856         /* FW supports persistent topology - override module parameter value */
9857         set_bit(HBA_PERSISTENT_TOPO, &phba->hba_flag);
9858
9859         /* if ASIC_GEN_NUM >= 0xC) */
9860         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9861                     LPFC_SLI_INTF_IF_TYPE_6) ||
9862             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
9863                     LPFC_SLI_INTF_FAMILY_G6)) {
9864                 if (!tf)
9865                         phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
9866                                         ? FLAGS_TOPOLOGY_MODE_LOOP
9867                                         : FLAGS_TOPOLOGY_MODE_PT_PT);
9868                 else
9869                         clear_bit(HBA_PERSISTENT_TOPO, &phba->hba_flag);
9870         } else { /* G5 */
9871                 if (tf)
9872                         /* If topology failover set - pt is '0' or '1' */
9873                         phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
9874                                               FLAGS_TOPOLOGY_MODE_LOOP_PT);
9875                 else
9876                         phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
9877                                         ? FLAGS_TOPOLOGY_MODE_PT_PT
9878                                         : FLAGS_TOPOLOGY_MODE_LOOP);
9879         }
9880         if (test_bit(HBA_PERSISTENT_TOPO, &phba->hba_flag))
9881                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9882                                 "2020 Using persistent topology value [%s]",
9883                                 lpfc_topo_to_str[phba->cfg_topology]);
9884         else
9885                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9886                                 "2021 Invalid topology values from FW "
9887                                 "Using driver parameter defined value [%s]",
9888                                 lpfc_topo_to_str[phba->cfg_topology]);
9889 }
9890
9891 /**
9892  * lpfc_sli4_read_config - Get the config parameters.
9893  * @phba: pointer to lpfc hba data structure.
9894  *
9895  * This routine is invoked to read the configuration parameters from the HBA.
9896  * The configuration parameters are used to set the base and maximum values
9897  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
9898  * allocation for the port.
9899  *
9900  * Return codes
9901  *      0 - successful
9902  *      -ENOMEM - No available memory
9903  *      -EIO - The mailbox failed to complete successfully.
9904  **/
9905 int
9906 lpfc_sli4_read_config(struct lpfc_hba *phba)
9907 {
9908         LPFC_MBOXQ_t *pmb;
9909         struct lpfc_mbx_read_config *rd_config;
9910         union  lpfc_sli4_cfg_shdr *shdr;
9911         uint32_t shdr_status, shdr_add_status;
9912         struct lpfc_mbx_get_func_cfg *get_func_cfg;
9913         struct lpfc_rsrc_desc_fcfcoe *desc;
9914         char *pdesc_0;
9915         uint16_t forced_link_speed;
9916         uint32_t if_type, qmin, fawwpn;
9917         int length, i, rc = 0, rc2;
9918
9919         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9920         if (!pmb) {
9921                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9922                                 "2011 Unable to allocate memory for issuing "
9923                                 "SLI_CONFIG_SPECIAL mailbox command\n");
9924                 return -ENOMEM;
9925         }
9926
9927         lpfc_read_config(phba, pmb);
9928
9929         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9930         if (rc != MBX_SUCCESS) {
9931                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9932                                 "2012 Mailbox failed , mbxCmd x%x "
9933                                 "READ_CONFIG, mbxStatus x%x\n",
9934                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
9935                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
9936                 rc = -EIO;
9937         } else {
9938                 rd_config = &pmb->u.mqe.un.rd_config;
9939                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
9940                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
9941                         phba->sli4_hba.lnk_info.lnk_tp =
9942                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
9943                         phba->sli4_hba.lnk_info.lnk_no =
9944                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
9945                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9946                                         "3081 lnk_type:%d, lnk_numb:%d\n",
9947                                         phba->sli4_hba.lnk_info.lnk_tp,
9948                                         phba->sli4_hba.lnk_info.lnk_no);
9949                 } else
9950                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9951                                         "3082 Mailbox (x%x) returned ldv:x0\n",
9952                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
9953                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
9954                         phba->bbcredit_support = 1;
9955                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
9956                 }
9957
9958                 fawwpn = bf_get(lpfc_mbx_rd_conf_fawwpn, rd_config);
9959
9960                 if (fawwpn) {
9961                         lpfc_printf_log(phba, KERN_INFO,
9962                                         LOG_INIT | LOG_DISCOVERY,
9963                                         "2702 READ_CONFIG: FA-PWWN is "
9964                                         "configured on\n");
9965                         phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_CONFIG;
9966                 } else {
9967                         /* Clear FW configured flag, preserve driver flag */
9968                         phba->sli4_hba.fawwpn_flag &= ~LPFC_FAWWPN_CONFIG;
9969                 }
9970
9971                 phba->sli4_hba.conf_trunk =
9972                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
9973                 phba->sli4_hba.extents_in_use =
9974                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
9975
9976                 phba->sli4_hba.max_cfg_param.max_xri =
9977                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
9978                 /* Reduce resource usage in kdump environment */
9979                 if (is_kdump_kernel() &&
9980                     phba->sli4_hba.max_cfg_param.max_xri > 512)
9981                         phba->sli4_hba.max_cfg_param.max_xri = 512;
9982                 phba->sli4_hba.max_cfg_param.xri_base =
9983                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
9984                 phba->sli4_hba.max_cfg_param.max_vpi =
9985                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
9986                 /* Limit the max we support */
9987                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
9988                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
9989                 phba->sli4_hba.max_cfg_param.vpi_base =
9990                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
9991                 phba->sli4_hba.max_cfg_param.max_rpi =
9992                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
9993                 phba->sli4_hba.max_cfg_param.rpi_base =
9994                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
9995                 phba->sli4_hba.max_cfg_param.max_vfi =
9996                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
9997                 phba->sli4_hba.max_cfg_param.vfi_base =
9998                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
9999                 phba->sli4_hba.max_cfg_param.max_fcfi =
10000                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
10001                 phba->sli4_hba.max_cfg_param.max_eq =
10002                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
10003                 phba->sli4_hba.max_cfg_param.max_rq =
10004                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
10005                 phba->sli4_hba.max_cfg_param.max_wq =
10006                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
10007                 phba->sli4_hba.max_cfg_param.max_cq =
10008                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
10009                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
10010                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
10011                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
10012                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
10013                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
10014                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
10015                 phba->max_vports = phba->max_vpi;
10016
10017                 /* Next decide on FPIN or Signal E2E CGN support
10018                  * For congestion alarms and warnings valid combination are:
10019                  * 1. FPIN alarms / FPIN warnings
10020                  * 2. Signal alarms / Signal warnings
10021                  * 3. FPIN alarms / Signal warnings
10022                  * 4. Signal alarms / FPIN warnings
10023                  *
10024                  * Initialize the adapter frequency to 100 mSecs
10025                  */
10026                 phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
10027                 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
10028                 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
10029
10030                 if (lpfc_use_cgn_signal) {
10031                         if (bf_get(lpfc_mbx_rd_conf_wcs, rd_config)) {
10032                                 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
10033                                 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
10034                         }
10035                         if (bf_get(lpfc_mbx_rd_conf_acs, rd_config)) {
10036                                 /* MUST support both alarm and warning
10037                                  * because EDC does not support alarm alone.
10038                                  */
10039                                 if (phba->cgn_reg_signal !=
10040                                     EDC_CG_SIG_WARN_ONLY) {
10041                                         /* Must support both or none */
10042                                         phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
10043                                         phba->cgn_reg_signal =
10044                                                 EDC_CG_SIG_NOTSUPPORTED;
10045                                 } else {
10046                                         phba->cgn_reg_signal =
10047                                                 EDC_CG_SIG_WARN_ALARM;
10048                                         phba->cgn_reg_fpin =
10049                                                 LPFC_CGN_FPIN_NONE;
10050                                 }
10051                         }
10052                 }
10053
10054                 /* Set the congestion initial signal and fpin values. */
10055                 phba->cgn_init_reg_fpin = phba->cgn_reg_fpin;
10056                 phba->cgn_init_reg_signal = phba->cgn_reg_signal;
10057
10058                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
10059                                 "6446 READ_CONFIG reg_sig x%x reg_fpin:x%x\n",
10060                                 phba->cgn_reg_signal, phba->cgn_reg_fpin);
10061
10062                 lpfc_map_topology(phba, rd_config);
10063                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10064                                 "2003 cfg params Extents? %d "
10065                                 "XRI(B:%d M:%d), "
10066                                 "VPI(B:%d M:%d) "
10067                                 "VFI(B:%d M:%d) "
10068                                 "RPI(B:%d M:%d) "
10069                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
10070                                 phba->sli4_hba.extents_in_use,
10071                                 phba->sli4_hba.max_cfg_param.xri_base,
10072                                 phba->sli4_hba.max_cfg_param.max_xri,
10073                                 phba->sli4_hba.max_cfg_param.vpi_base,
10074                                 phba->sli4_hba.max_cfg_param.max_vpi,
10075                                 phba->sli4_hba.max_cfg_param.vfi_base,
10076                                 phba->sli4_hba.max_cfg_param.max_vfi,
10077                                 phba->sli4_hba.max_cfg_param.rpi_base,
10078                                 phba->sli4_hba.max_cfg_param.max_rpi,
10079                                 phba->sli4_hba.max_cfg_param.max_fcfi,
10080                                 phba->sli4_hba.max_cfg_param.max_eq,
10081                                 phba->sli4_hba.max_cfg_param.max_cq,
10082                                 phba->sli4_hba.max_cfg_param.max_wq,
10083                                 phba->sli4_hba.max_cfg_param.max_rq,
10084                                 phba->lmt);
10085
10086                 /*
10087                  * Calculate queue resources based on how
10088                  * many WQ/CQ/EQs are available.
10089                  */
10090                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
10091                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
10092                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
10093                 /*
10094                  * Reserve 4 (ELS, NVME LS, MBOX, plus one extra) and
10095                  * the remainder can be used for NVME / FCP.
10096                  */
10097                 qmin -= 4;
10098                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
10099                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
10100
10101                 /* Check to see if there is enough for default cfg */
10102                 if ((phba->cfg_irq_chann > qmin) ||
10103                     (phba->cfg_hdw_queue > qmin)) {
10104                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10105                                         "2005 Reducing Queues - "
10106                                         "FW resource limitation: "
10107                                         "WQ %d CQ %d EQ %d: min %d: "
10108                                         "IRQ %d HDWQ %d\n",
10109                                         phba->sli4_hba.max_cfg_param.max_wq,
10110                                         phba->sli4_hba.max_cfg_param.max_cq,
10111                                         phba->sli4_hba.max_cfg_param.max_eq,
10112                                         qmin, phba->cfg_irq_chann,
10113                                         phba->cfg_hdw_queue);
10114
10115                         if (phba->cfg_irq_chann > qmin)
10116                                 phba->cfg_irq_chann = qmin;
10117                         if (phba->cfg_hdw_queue > qmin)
10118                                 phba->cfg_hdw_queue = qmin;
10119                 }
10120         }
10121
10122         if (rc)
10123                 goto read_cfg_out;
10124
10125         /* Update link speed if forced link speed is supported */
10126         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10127         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10128                 forced_link_speed =
10129                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
10130                 if (forced_link_speed) {
10131                         set_bit(HBA_FORCED_LINK_SPEED, &phba->hba_flag);
10132
10133                         switch (forced_link_speed) {
10134                         case LINK_SPEED_1G:
10135                                 phba->cfg_link_speed =
10136                                         LPFC_USER_LINK_SPEED_1G;
10137                                 break;
10138                         case LINK_SPEED_2G:
10139                                 phba->cfg_link_speed =
10140                                         LPFC_USER_LINK_SPEED_2G;
10141                                 break;
10142                         case LINK_SPEED_4G:
10143                                 phba->cfg_link_speed =
10144                                         LPFC_USER_LINK_SPEED_4G;
10145                                 break;
10146                         case LINK_SPEED_8G:
10147                                 phba->cfg_link_speed =
10148                                         LPFC_USER_LINK_SPEED_8G;
10149                                 break;
10150                         case LINK_SPEED_10G:
10151                                 phba->cfg_link_speed =
10152                                         LPFC_USER_LINK_SPEED_10G;
10153                                 break;
10154                         case LINK_SPEED_16G:
10155                                 phba->cfg_link_speed =
10156                                         LPFC_USER_LINK_SPEED_16G;
10157                                 break;
10158                         case LINK_SPEED_32G:
10159                                 phba->cfg_link_speed =
10160                                         LPFC_USER_LINK_SPEED_32G;
10161                                 break;
10162                         case LINK_SPEED_64G:
10163                                 phba->cfg_link_speed =
10164                                         LPFC_USER_LINK_SPEED_64G;
10165                                 break;
10166                         case 0xffff:
10167                                 phba->cfg_link_speed =
10168                                         LPFC_USER_LINK_SPEED_AUTO;
10169                                 break;
10170                         default:
10171                                 lpfc_printf_log(phba, KERN_ERR,
10172                                                 LOG_TRACE_EVENT,
10173                                                 "0047 Unrecognized link "
10174                                                 "speed : %d\n",
10175                                                 forced_link_speed);
10176                                 phba->cfg_link_speed =
10177                                         LPFC_USER_LINK_SPEED_AUTO;
10178                         }
10179                 }
10180         }
10181
10182         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
10183         length = phba->sli4_hba.max_cfg_param.max_xri -
10184                         lpfc_sli4_get_els_iocb_cnt(phba);
10185         if (phba->cfg_hba_queue_depth > length) {
10186                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10187                                 "3361 HBA queue depth changed from %d to %d\n",
10188                                 phba->cfg_hba_queue_depth, length);
10189                 phba->cfg_hba_queue_depth = length;
10190         }
10191
10192         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
10193             LPFC_SLI_INTF_IF_TYPE_2)
10194                 goto read_cfg_out;
10195
10196         /* get the pf# and vf# for SLI4 if_type 2 port */
10197         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
10198                   sizeof(struct lpfc_sli4_cfg_mhdr));
10199         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
10200                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
10201                          length, LPFC_SLI4_MBX_EMBED);
10202
10203         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10204         shdr = (union lpfc_sli4_cfg_shdr *)
10205                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
10206         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10207         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10208         if (rc2 || shdr_status || shdr_add_status) {
10209                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10210                                 "3026 Mailbox failed , mbxCmd x%x "
10211                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
10212                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
10213                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
10214                 goto read_cfg_out;
10215         }
10216
10217         /* search for fc_fcoe resrouce descriptor */
10218         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
10219
10220         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
10221         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
10222         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
10223         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
10224                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
10225         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
10226                 goto read_cfg_out;
10227
10228         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
10229                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
10230                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
10231                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
10232                         phba->sli4_hba.iov.pf_number =
10233                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
10234                         phba->sli4_hba.iov.vf_number =
10235                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
10236                         break;
10237                 }
10238         }
10239
10240         if (i < LPFC_RSRC_DESC_MAX_NUM)
10241                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10242                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
10243                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
10244                                 phba->sli4_hba.iov.vf_number);
10245         else
10246                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10247                                 "3028 GET_FUNCTION_CONFIG: failed to find "
10248                                 "Resource Descriptor:x%x\n",
10249                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
10250
10251 read_cfg_out:
10252         mempool_free(pmb, phba->mbox_mem_pool);
10253         return rc;
10254 }
10255
10256 /**
10257  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
10258  * @phba: pointer to lpfc hba data structure.
10259  *
10260  * This routine is invoked to setup the port-side endian order when
10261  * the port if_type is 0.  This routine has no function for other
10262  * if_types.
10263  *
10264  * Return codes
10265  *      0 - successful
10266  *      -ENOMEM - No available memory
10267  *      -EIO - The mailbox failed to complete successfully.
10268  **/
10269 static int
10270 lpfc_setup_endian_order(struct lpfc_hba *phba)
10271 {
10272         LPFC_MBOXQ_t *mboxq;
10273         uint32_t if_type, rc = 0;
10274         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
10275                                       HOST_ENDIAN_HIGH_WORD1};
10276
10277         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10278         switch (if_type) {
10279         case LPFC_SLI_INTF_IF_TYPE_0:
10280                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10281                                                        GFP_KERNEL);
10282                 if (!mboxq) {
10283                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10284                                         "0492 Unable to allocate memory for "
10285                                         "issuing SLI_CONFIG_SPECIAL mailbox "
10286                                         "command\n");
10287                         return -ENOMEM;
10288                 }
10289
10290                 /*
10291                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
10292                  * two words to contain special data values and no other data.
10293                  */
10294                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
10295                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
10296                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10297                 if (rc != MBX_SUCCESS) {
10298                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10299                                         "0493 SLI_CONFIG_SPECIAL mailbox "
10300                                         "failed with status x%x\n",
10301                                         rc);
10302                         rc = -EIO;
10303                 }
10304                 mempool_free(mboxq, phba->mbox_mem_pool);
10305                 break;
10306         case LPFC_SLI_INTF_IF_TYPE_6:
10307         case LPFC_SLI_INTF_IF_TYPE_2:
10308         case LPFC_SLI_INTF_IF_TYPE_1:
10309         default:
10310                 break;
10311         }
10312         return rc;
10313 }
10314
10315 /**
10316  * lpfc_sli4_queue_verify - Verify and update EQ counts
10317  * @phba: pointer to lpfc hba data structure.
10318  *
10319  * This routine is invoked to check the user settable queue counts for EQs.
10320  * After this routine is called the counts will be set to valid values that
10321  * adhere to the constraints of the system's interrupt vectors and the port's
10322  * queue resources.
10323  *
10324  * Return codes
10325  *      0 - successful
10326  *      -ENOMEM - No available memory
10327  **/
10328 static int
10329 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
10330 {
10331         /*
10332          * Sanity check for configured queue parameters against the run-time
10333          * device parameters
10334          */
10335
10336         if (phba->nvmet_support) {
10337                 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
10338                         phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
10339                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
10340                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
10341         }
10342
10343         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10344                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
10345                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
10346                         phba->cfg_nvmet_mrq);
10347
10348         /* Get EQ depth from module parameter, fake the default for now */
10349         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10350         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10351
10352         /* Get CQ depth from module parameter, fake the default for now */
10353         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10354         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10355         return 0;
10356 }
10357
10358 static int
10359 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
10360 {
10361         struct lpfc_queue *qdesc;
10362         u32 wqesize;
10363         int cpu;
10364
10365         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
10366         /* Create Fast Path IO CQs */
10367         if (phba->enab_exp_wqcq_pages)
10368                 /* Increase the CQ size when WQEs contain an embedded cdb */
10369                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10370                                               phba->sli4_hba.cq_esize,
10371                                               LPFC_CQE_EXP_COUNT, cpu);
10372
10373         else
10374                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10375                                               phba->sli4_hba.cq_esize,
10376                                               phba->sli4_hba.cq_ecount, cpu);
10377         if (!qdesc) {
10378                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10379                                 "0499 Failed allocate fast-path IO CQ (%d)\n",
10380                                 idx);
10381                 return 1;
10382         }
10383         qdesc->qe_valid = 1;
10384         qdesc->hdwq = idx;
10385         qdesc->chann = cpu;
10386         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
10387
10388         /* Create Fast Path IO WQs */
10389         if (phba->enab_exp_wqcq_pages) {
10390                 /* Increase the WQ size when WQEs contain an embedded cdb */
10391                 wqesize = (phba->fcp_embed_io) ?
10392                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
10393                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10394                                               wqesize,
10395                                               LPFC_WQE_EXP_COUNT, cpu);
10396         } else
10397                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10398                                               phba->sli4_hba.wq_esize,
10399                                               phba->sli4_hba.wq_ecount, cpu);
10400
10401         if (!qdesc) {
10402                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10403                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
10404                                 idx);
10405                 return 1;
10406         }
10407         qdesc->hdwq = idx;
10408         qdesc->chann = cpu;
10409         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
10410         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10411         return 0;
10412 }
10413
10414 /**
10415  * lpfc_sli4_queue_create - Create all the SLI4 queues
10416  * @phba: pointer to lpfc hba data structure.
10417  *
10418  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
10419  * operation. For each SLI4 queue type, the parameters such as queue entry
10420  * count (queue depth) shall be taken from the module parameter. For now,
10421  * we just use some constant number as place holder.
10422  *
10423  * Return codes
10424  *      0 - successful
10425  *      -ENOMEM - No availble memory
10426  *      -EIO - The mailbox failed to complete successfully.
10427  **/
10428 int
10429 lpfc_sli4_queue_create(struct lpfc_hba *phba)
10430 {
10431         struct lpfc_queue *qdesc;
10432         int idx, cpu, eqcpu;
10433         struct lpfc_sli4_hdw_queue *qp;
10434         struct lpfc_vector_map_info *cpup;
10435         struct lpfc_vector_map_info *eqcpup;
10436         struct lpfc_eq_intr_info *eqi;
10437         u32 wqesize;
10438
10439         /*
10440          * Create HBA Record arrays.
10441          * Both NVME and FCP will share that same vectors / EQs
10442          */
10443         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
10444         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
10445         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
10446         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
10447         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
10448         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
10449         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10450         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10451         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10452         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10453
10454         if (!phba->sli4_hba.hdwq) {
10455                 phba->sli4_hba.hdwq = kcalloc(
10456                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
10457                         GFP_KERNEL);
10458                 if (!phba->sli4_hba.hdwq) {
10459                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10460                                         "6427 Failed allocate memory for "
10461                                         "fast-path Hardware Queue array\n");
10462                         goto out_error;
10463                 }
10464                 /* Prepare hardware queues to take IO buffers */
10465                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10466                         qp = &phba->sli4_hba.hdwq[idx];
10467                         spin_lock_init(&qp->io_buf_list_get_lock);
10468                         spin_lock_init(&qp->io_buf_list_put_lock);
10469                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
10470                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
10471                         qp->get_io_bufs = 0;
10472                         qp->put_io_bufs = 0;
10473                         qp->total_io_bufs = 0;
10474                         spin_lock_init(&qp->abts_io_buf_list_lock);
10475                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
10476                         qp->abts_scsi_io_bufs = 0;
10477                         qp->abts_nvme_io_bufs = 0;
10478                         INIT_LIST_HEAD(&qp->sgl_list);
10479                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
10480                         spin_lock_init(&qp->hdwq_lock);
10481                 }
10482         }
10483
10484         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10485                 if (phba->nvmet_support) {
10486                         phba->sli4_hba.nvmet_cqset = kcalloc(
10487                                         phba->cfg_nvmet_mrq,
10488                                         sizeof(struct lpfc_queue *),
10489                                         GFP_KERNEL);
10490                         if (!phba->sli4_hba.nvmet_cqset) {
10491                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10492                                         "3121 Fail allocate memory for "
10493                                         "fast-path CQ set array\n");
10494                                 goto out_error;
10495                         }
10496                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
10497                                         phba->cfg_nvmet_mrq,
10498                                         sizeof(struct lpfc_queue *),
10499                                         GFP_KERNEL);
10500                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
10501                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10502                                         "3122 Fail allocate memory for "
10503                                         "fast-path RQ set hdr array\n");
10504                                 goto out_error;
10505                         }
10506                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
10507                                         phba->cfg_nvmet_mrq,
10508                                         sizeof(struct lpfc_queue *),
10509                                         GFP_KERNEL);
10510                         if (!phba->sli4_hba.nvmet_mrq_data) {
10511                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10512                                         "3124 Fail allocate memory for "
10513                                         "fast-path RQ set data array\n");
10514                                 goto out_error;
10515                         }
10516                 }
10517         }
10518
10519         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10520
10521         /* Create HBA Event Queues (EQs) */
10522         for_each_present_cpu(cpu) {
10523                 /* We only want to create 1 EQ per vector, even though
10524                  * multiple CPUs might be using that vector. so only
10525                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
10526                  */
10527                 cpup = &phba->sli4_hba.cpu_map[cpu];
10528                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10529                         continue;
10530
10531                 /* Get a ptr to the Hardware Queue associated with this CPU */
10532                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10533
10534                 /* Allocate an EQ */
10535                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10536                                               phba->sli4_hba.eq_esize,
10537                                               phba->sli4_hba.eq_ecount, cpu);
10538                 if (!qdesc) {
10539                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10540                                         "0497 Failed allocate EQ (%d)\n",
10541                                         cpup->hdwq);
10542                         goto out_error;
10543                 }
10544                 qdesc->qe_valid = 1;
10545                 qdesc->hdwq = cpup->hdwq;
10546                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
10547                 qdesc->last_cpu = qdesc->chann;
10548
10549                 /* Save the allocated EQ in the Hardware Queue */
10550                 qp->hba_eq = qdesc;
10551
10552                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
10553                 list_add(&qdesc->cpu_list, &eqi->list);
10554         }
10555
10556         /* Now we need to populate the other Hardware Queues, that share
10557          * an IRQ vector, with the associated EQ ptr.
10558          */
10559         for_each_present_cpu(cpu) {
10560                 cpup = &phba->sli4_hba.cpu_map[cpu];
10561
10562                 /* Check for EQ already allocated in previous loop */
10563                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
10564                         continue;
10565
10566                 /* Check for multiple CPUs per hdwq */
10567                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10568                 if (qp->hba_eq)
10569                         continue;
10570
10571                 /* We need to share an EQ for this hdwq */
10572                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
10573                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
10574                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
10575         }
10576
10577         /* Allocate IO Path SLI4 CQ/WQs */
10578         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10579                 if (lpfc_alloc_io_wq_cq(phba, idx))
10580                         goto out_error;
10581         }
10582
10583         if (phba->nvmet_support) {
10584                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10585                         cpu = lpfc_find_cpu_handle(phba, idx,
10586                                                    LPFC_FIND_BY_HDWQ);
10587                         qdesc = lpfc_sli4_queue_alloc(phba,
10588                                                       LPFC_DEFAULT_PAGE_SIZE,
10589                                                       phba->sli4_hba.cq_esize,
10590                                                       phba->sli4_hba.cq_ecount,
10591                                                       cpu);
10592                         if (!qdesc) {
10593                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10594                                                 "3142 Failed allocate NVME "
10595                                                 "CQ Set (%d)\n", idx);
10596                                 goto out_error;
10597                         }
10598                         qdesc->qe_valid = 1;
10599                         qdesc->hdwq = idx;
10600                         qdesc->chann = cpu;
10601                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
10602                 }
10603         }
10604
10605         /*
10606          * Create Slow Path Completion Queues (CQs)
10607          */
10608
10609         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
10610         /* Create slow-path Mailbox Command Complete Queue */
10611         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10612                                       phba->sli4_hba.cq_esize,
10613                                       phba->sli4_hba.cq_ecount, cpu);
10614         if (!qdesc) {
10615                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10616                                 "0500 Failed allocate slow-path mailbox CQ\n");
10617                 goto out_error;
10618         }
10619         qdesc->qe_valid = 1;
10620         phba->sli4_hba.mbx_cq = qdesc;
10621
10622         /* Create slow-path ELS Complete Queue */
10623         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10624                                       phba->sli4_hba.cq_esize,
10625                                       phba->sli4_hba.cq_ecount, cpu);
10626         if (!qdesc) {
10627                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10628                                 "0501 Failed allocate slow-path ELS CQ\n");
10629                 goto out_error;
10630         }
10631         qdesc->qe_valid = 1;
10632         qdesc->chann = cpu;
10633         phba->sli4_hba.els_cq = qdesc;
10634
10635
10636         /*
10637          * Create Slow Path Work Queues (WQs)
10638          */
10639
10640         /* Create Mailbox Command Queue */
10641
10642         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10643                                       phba->sli4_hba.mq_esize,
10644                                       phba->sli4_hba.mq_ecount, cpu);
10645         if (!qdesc) {
10646                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10647                                 "0505 Failed allocate slow-path MQ\n");
10648                 goto out_error;
10649         }
10650         qdesc->chann = cpu;
10651         phba->sli4_hba.mbx_wq = qdesc;
10652
10653         /*
10654          * Create ELS Work Queues
10655          */
10656
10657         /*
10658          * Create slow-path ELS Work Queue.
10659          * Increase the ELS WQ size when WQEs contain an embedded cdb
10660          */
10661         wqesize = (phba->fcp_embed_io) ?
10662                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
10663
10664         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10665                                       wqesize,
10666                                       phba->sli4_hba.wq_ecount, cpu);
10667         if (!qdesc) {
10668                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10669                                 "0504 Failed allocate slow-path ELS WQ\n");
10670                 goto out_error;
10671         }
10672         qdesc->chann = cpu;
10673         phba->sli4_hba.els_wq = qdesc;
10674         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10675
10676         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10677                 /* Create NVME LS Complete Queue */
10678                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10679                                               phba->sli4_hba.cq_esize,
10680                                               phba->sli4_hba.cq_ecount, cpu);
10681                 if (!qdesc) {
10682                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10683                                         "6079 Failed allocate NVME LS CQ\n");
10684                         goto out_error;
10685                 }
10686                 qdesc->chann = cpu;
10687                 qdesc->qe_valid = 1;
10688                 phba->sli4_hba.nvmels_cq = qdesc;
10689
10690                 /* Create NVME LS Work Queue */
10691                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10692                                               phba->sli4_hba.wq_esize,
10693                                               phba->sli4_hba.wq_ecount, cpu);
10694                 if (!qdesc) {
10695                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10696                                         "6080 Failed allocate NVME LS WQ\n");
10697                         goto out_error;
10698                 }
10699                 qdesc->chann = cpu;
10700                 phba->sli4_hba.nvmels_wq = qdesc;
10701                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10702         }
10703
10704         /*
10705          * Create Receive Queue (RQ)
10706          */
10707
10708         /* Create Receive Queue for header */
10709         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10710                                       phba->sli4_hba.rq_esize,
10711                                       phba->sli4_hba.rq_ecount, cpu);
10712         if (!qdesc) {
10713                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10714                                 "0506 Failed allocate receive HRQ\n");
10715                 goto out_error;
10716         }
10717         phba->sli4_hba.hdr_rq = qdesc;
10718
10719         /* Create Receive Queue for data */
10720         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10721                                       phba->sli4_hba.rq_esize,
10722                                       phba->sli4_hba.rq_ecount, cpu);
10723         if (!qdesc) {
10724                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10725                                 "0507 Failed allocate receive DRQ\n");
10726                 goto out_error;
10727         }
10728         phba->sli4_hba.dat_rq = qdesc;
10729
10730         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
10731             phba->nvmet_support) {
10732                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10733                         cpu = lpfc_find_cpu_handle(phba, idx,
10734                                                    LPFC_FIND_BY_HDWQ);
10735                         /* Create NVMET Receive Queue for header */
10736                         qdesc = lpfc_sli4_queue_alloc(phba,
10737                                                       LPFC_DEFAULT_PAGE_SIZE,
10738                                                       phba->sli4_hba.rq_esize,
10739                                                       LPFC_NVMET_RQE_DEF_COUNT,
10740                                                       cpu);
10741                         if (!qdesc) {
10742                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10743                                                 "3146 Failed allocate "
10744                                                 "receive HRQ\n");
10745                                 goto out_error;
10746                         }
10747                         qdesc->hdwq = idx;
10748                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
10749
10750                         /* Only needed for header of RQ pair */
10751                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
10752                                                    GFP_KERNEL,
10753                                                    cpu_to_node(cpu));
10754                         if (qdesc->rqbp == NULL) {
10755                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10756                                                 "6131 Failed allocate "
10757                                                 "Header RQBP\n");
10758                                 goto out_error;
10759                         }
10760
10761                         /* Put list in known state in case driver load fails. */
10762                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
10763
10764                         /* Create NVMET Receive Queue for data */
10765                         qdesc = lpfc_sli4_queue_alloc(phba,
10766                                                       LPFC_DEFAULT_PAGE_SIZE,
10767                                                       phba->sli4_hba.rq_esize,
10768                                                       LPFC_NVMET_RQE_DEF_COUNT,
10769                                                       cpu);
10770                         if (!qdesc) {
10771                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10772                                                 "3156 Failed allocate "
10773                                                 "receive DRQ\n");
10774                                 goto out_error;
10775                         }
10776                         qdesc->hdwq = idx;
10777                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
10778                 }
10779         }
10780
10781         /* Clear NVME stats */
10782         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10783                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10784                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
10785                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
10786                 }
10787         }
10788
10789         /* Clear SCSI stats */
10790         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
10791                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10792                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
10793                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
10794                 }
10795         }
10796
10797         return 0;
10798
10799 out_error:
10800         lpfc_sli4_queue_destroy(phba);
10801         return -ENOMEM;
10802 }
10803
10804 static inline void
10805 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
10806 {
10807         if (*qp != NULL) {
10808                 lpfc_sli4_queue_free(*qp);
10809                 *qp = NULL;
10810         }
10811 }
10812
10813 static inline void
10814 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
10815 {
10816         int idx;
10817
10818         if (*qs == NULL)
10819                 return;
10820
10821         for (idx = 0; idx < max; idx++)
10822                 __lpfc_sli4_release_queue(&(*qs)[idx]);
10823
10824         kfree(*qs);
10825         *qs = NULL;
10826 }
10827
10828 static inline void
10829 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
10830 {
10831         struct lpfc_sli4_hdw_queue *hdwq;
10832         struct lpfc_queue *eq;
10833         uint32_t idx;
10834
10835         hdwq = phba->sli4_hba.hdwq;
10836
10837         /* Loop thru all Hardware Queues */
10838         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10839                 /* Free the CQ/WQ corresponding to the Hardware Queue */
10840                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
10841                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
10842                 hdwq[idx].hba_eq = NULL;
10843                 hdwq[idx].io_cq = NULL;
10844                 hdwq[idx].io_wq = NULL;
10845                 if (phba->cfg_xpsgl && !phba->nvmet_support)
10846                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
10847                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
10848         }
10849         /* Loop thru all IRQ vectors */
10850         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10851                 /* Free the EQ corresponding to the IRQ vector */
10852                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
10853                 lpfc_sli4_queue_free(eq);
10854                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
10855         }
10856 }
10857
10858 /**
10859  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
10860  * @phba: pointer to lpfc hba data structure.
10861  *
10862  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
10863  * operation.
10864  *
10865  * Return codes
10866  *      0 - successful
10867  *      -ENOMEM - No available memory
10868  *      -EIO - The mailbox failed to complete successfully.
10869  **/
10870 void
10871 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
10872 {
10873         /*
10874          * Set FREE_INIT before beginning to free the queues.
10875          * Wait until the users of queues to acknowledge to
10876          * release queues by clearing FREE_WAIT.
10877          */
10878         spin_lock_irq(&phba->hbalock);
10879         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
10880         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
10881                 spin_unlock_irq(&phba->hbalock);
10882                 msleep(20);
10883                 spin_lock_irq(&phba->hbalock);
10884         }
10885         spin_unlock_irq(&phba->hbalock);
10886
10887         lpfc_sli4_cleanup_poll_list(phba);
10888
10889         /* Release HBA eqs */
10890         if (phba->sli4_hba.hdwq)
10891                 lpfc_sli4_release_hdwq(phba);
10892
10893         if (phba->nvmet_support) {
10894                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
10895                                          phba->cfg_nvmet_mrq);
10896
10897                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
10898                                          phba->cfg_nvmet_mrq);
10899                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
10900                                          phba->cfg_nvmet_mrq);
10901         }
10902
10903         /* Release mailbox command work queue */
10904         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
10905
10906         /* Release ELS work queue */
10907         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
10908
10909         /* Release ELS work queue */
10910         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
10911
10912         /* Release unsolicited receive queue */
10913         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
10914         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
10915
10916         /* Release ELS complete queue */
10917         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
10918
10919         /* Release NVME LS complete queue */
10920         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
10921
10922         /* Release mailbox command complete queue */
10923         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
10924
10925         /* Everything on this list has been freed */
10926         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10927
10928         /* Done with freeing the queues */
10929         spin_lock_irq(&phba->hbalock);
10930         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
10931         spin_unlock_irq(&phba->hbalock);
10932 }
10933
10934 int
10935 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
10936 {
10937         struct lpfc_rqb *rqbp;
10938         struct lpfc_dmabuf *h_buf;
10939         struct rqb_dmabuf *rqb_buffer;
10940
10941         rqbp = rq->rqbp;
10942         while (!list_empty(&rqbp->rqb_buffer_list)) {
10943                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
10944                                  struct lpfc_dmabuf, list);
10945
10946                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
10947                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
10948                 rqbp->buffer_count--;
10949         }
10950         return 1;
10951 }
10952
10953 static int
10954 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
10955         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
10956         int qidx, uint32_t qtype)
10957 {
10958         struct lpfc_sli_ring *pring;
10959         int rc;
10960
10961         if (!eq || !cq || !wq) {
10962                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10963                         "6085 Fast-path %s (%d) not allocated\n",
10964                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
10965                 return -ENOMEM;
10966         }
10967
10968         /* create the Cq first */
10969         rc = lpfc_cq_create(phba, cq, eq,
10970                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
10971         if (rc) {
10972                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10973                                 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
10974                                 qidx, (uint32_t)rc);
10975                 return rc;
10976         }
10977
10978         if (qtype != LPFC_MBOX) {
10979                 /* Setup cq_map for fast lookup */
10980                 if (cq_map)
10981                         *cq_map = cq->queue_id;
10982
10983                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10984                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
10985                         qidx, cq->queue_id, qidx, eq->queue_id);
10986
10987                 /* create the wq */
10988                 rc = lpfc_wq_create(phba, wq, cq, qtype);
10989                 if (rc) {
10990                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10991                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
10992                                 qidx, (uint32_t)rc);
10993                         /* no need to tear down cq - caller will do so */
10994                         return rc;
10995                 }
10996
10997                 /* Bind this CQ/WQ to the NVME ring */
10998                 pring = wq->pring;
10999                 pring->sli.sli4.wqp = (void *)wq;
11000                 cq->pring = pring;
11001
11002                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11003                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
11004                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
11005         } else {
11006                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
11007                 if (rc) {
11008                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11009                                         "0539 Failed setup of slow-path MQ: "
11010                                         "rc = 0x%x\n", rc);
11011                         /* no need to tear down cq - caller will do so */
11012                         return rc;
11013                 }
11014
11015                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11016                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
11017                         phba->sli4_hba.mbx_wq->queue_id,
11018                         phba->sli4_hba.mbx_cq->queue_id);
11019         }
11020
11021         return 0;
11022 }
11023
11024 /**
11025  * lpfc_setup_cq_lookup - Setup the CQ lookup table
11026  * @phba: pointer to lpfc hba data structure.
11027  *
11028  * This routine will populate the cq_lookup table by all
11029  * available CQ queue_id's.
11030  **/
11031 static void
11032 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
11033 {
11034         struct lpfc_queue *eq, *childq;
11035         int qidx;
11036
11037         memset(phba->sli4_hba.cq_lookup, 0,
11038                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
11039         /* Loop thru all IRQ vectors */
11040         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11041                 /* Get the EQ corresponding to the IRQ vector */
11042                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
11043                 if (!eq)
11044                         continue;
11045                 /* Loop through all CQs associated with that EQ */
11046                 list_for_each_entry(childq, &eq->child_list, list) {
11047                         if (childq->queue_id > phba->sli4_hba.cq_max)
11048                                 continue;
11049                         if (childq->subtype == LPFC_IO)
11050                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
11051                                         childq;
11052                 }
11053         }
11054 }
11055
11056 /**
11057  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
11058  * @phba: pointer to lpfc hba data structure.
11059  *
11060  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
11061  * operation.
11062  *
11063  * Return codes
11064  *      0 - successful
11065  *      -ENOMEM - No available memory
11066  *      -EIO - The mailbox failed to complete successfully.
11067  **/
11068 int
11069 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
11070 {
11071         uint32_t shdr_status, shdr_add_status;
11072         union lpfc_sli4_cfg_shdr *shdr;
11073         struct lpfc_vector_map_info *cpup;
11074         struct lpfc_sli4_hdw_queue *qp;
11075         LPFC_MBOXQ_t *mboxq;
11076         int qidx, cpu;
11077         uint32_t length, usdelay;
11078         int rc = -ENOMEM;
11079
11080         /* Check for dual-ULP support */
11081         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11082         if (!mboxq) {
11083                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11084                                 "3249 Unable to allocate memory for "
11085                                 "QUERY_FW_CFG mailbox command\n");
11086                 return -ENOMEM;
11087         }
11088         length = (sizeof(struct lpfc_mbx_query_fw_config) -
11089                   sizeof(struct lpfc_sli4_cfg_mhdr));
11090         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11091                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
11092                          length, LPFC_SLI4_MBX_EMBED);
11093
11094         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11095
11096         shdr = (union lpfc_sli4_cfg_shdr *)
11097                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11098         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11099         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11100         if (shdr_status || shdr_add_status || rc) {
11101                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11102                                 "3250 QUERY_FW_CFG mailbox failed with status "
11103                                 "x%x add_status x%x, mbx status x%x\n",
11104                                 shdr_status, shdr_add_status, rc);
11105                 mempool_free(mboxq, phba->mbox_mem_pool);
11106                 rc = -ENXIO;
11107                 goto out_error;
11108         }
11109
11110         phba->sli4_hba.fw_func_mode =
11111                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
11112         phba->sli4_hba.physical_port =
11113                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
11114         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11115                         "3251 QUERY_FW_CFG: func_mode:x%x\n",
11116                         phba->sli4_hba.fw_func_mode);
11117
11118         mempool_free(mboxq, phba->mbox_mem_pool);
11119
11120         /*
11121          * Set up HBA Event Queues (EQs)
11122          */
11123         qp = phba->sli4_hba.hdwq;
11124
11125         /* Set up HBA event queue */
11126         if (!qp) {
11127                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11128                                 "3147 Fast-path EQs not allocated\n");
11129                 rc = -ENOMEM;
11130                 goto out_error;
11131         }
11132
11133         /* Loop thru all IRQ vectors */
11134         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11135                 /* Create HBA Event Queues (EQs) in order */
11136                 for_each_present_cpu(cpu) {
11137                         cpup = &phba->sli4_hba.cpu_map[cpu];
11138
11139                         /* Look for the CPU thats using that vector with
11140                          * LPFC_CPU_FIRST_IRQ set.
11141                          */
11142                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11143                                 continue;
11144                         if (qidx != cpup->eq)
11145                                 continue;
11146
11147                         /* Create an EQ for that vector */
11148                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
11149                                             phba->cfg_fcp_imax);
11150                         if (rc) {
11151                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11152                                                 "0523 Failed setup of fast-path"
11153                                                 " EQ (%d), rc = 0x%x\n",
11154                                                 cpup->eq, (uint32_t)rc);
11155                                 goto out_destroy;
11156                         }
11157
11158                         /* Save the EQ for that vector in the hba_eq_hdl */
11159                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
11160                                 qp[cpup->hdwq].hba_eq;
11161
11162                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11163                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
11164                                         cpup->eq,
11165                                         qp[cpup->hdwq].hba_eq->queue_id);
11166                 }
11167         }
11168
11169         /* Loop thru all Hardware Queues */
11170         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11171                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
11172                 cpup = &phba->sli4_hba.cpu_map[cpu];
11173
11174                 /* Create the CQ/WQ corresponding to the Hardware Queue */
11175                 rc = lpfc_create_wq_cq(phba,
11176                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
11177                                        qp[qidx].io_cq,
11178                                        qp[qidx].io_wq,
11179                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
11180                                        qidx,
11181                                        LPFC_IO);
11182                 if (rc) {
11183                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11184                                         "0535 Failed to setup fastpath "
11185                                         "IO WQ/CQ (%d), rc = 0x%x\n",
11186                                         qidx, (uint32_t)rc);
11187                         goto out_destroy;
11188                 }
11189         }
11190
11191         /*
11192          * Set up Slow Path Complete Queues (CQs)
11193          */
11194
11195         /* Set up slow-path MBOX CQ/MQ */
11196
11197         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
11198                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11199                                 "0528 %s not allocated\n",
11200                                 phba->sli4_hba.mbx_cq ?
11201                                 "Mailbox WQ" : "Mailbox CQ");
11202                 rc = -ENOMEM;
11203                 goto out_destroy;
11204         }
11205
11206         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11207                                phba->sli4_hba.mbx_cq,
11208                                phba->sli4_hba.mbx_wq,
11209                                NULL, 0, LPFC_MBOX);
11210         if (rc) {
11211                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11212                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
11213                         (uint32_t)rc);
11214                 goto out_destroy;
11215         }
11216         if (phba->nvmet_support) {
11217                 if (!phba->sli4_hba.nvmet_cqset) {
11218                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11219                                         "3165 Fast-path NVME CQ Set "
11220                                         "array not allocated\n");
11221                         rc = -ENOMEM;
11222                         goto out_destroy;
11223                 }
11224                 if (phba->cfg_nvmet_mrq > 1) {
11225                         rc = lpfc_cq_create_set(phba,
11226                                         phba->sli4_hba.nvmet_cqset,
11227                                         qp,
11228                                         LPFC_WCQ, LPFC_NVMET);
11229                         if (rc) {
11230                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11231                                                 "3164 Failed setup of NVME CQ "
11232                                                 "Set, rc = 0x%x\n",
11233                                                 (uint32_t)rc);
11234                                 goto out_destroy;
11235                         }
11236                 } else {
11237                         /* Set up NVMET Receive Complete Queue */
11238                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
11239                                             qp[0].hba_eq,
11240                                             LPFC_WCQ, LPFC_NVMET);
11241                         if (rc) {
11242                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11243                                                 "6089 Failed setup NVMET CQ: "
11244                                                 "rc = 0x%x\n", (uint32_t)rc);
11245                                 goto out_destroy;
11246                         }
11247                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
11248
11249                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11250                                         "6090 NVMET CQ setup: cq-id=%d, "
11251                                         "parent eq-id=%d\n",
11252                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
11253                                         qp[0].hba_eq->queue_id);
11254                 }
11255         }
11256
11257         /* Set up slow-path ELS WQ/CQ */
11258         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
11259                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11260                                 "0530 ELS %s not allocated\n",
11261                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
11262                 rc = -ENOMEM;
11263                 goto out_destroy;
11264         }
11265         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11266                                phba->sli4_hba.els_cq,
11267                                phba->sli4_hba.els_wq,
11268                                NULL, 0, LPFC_ELS);
11269         if (rc) {
11270                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11271                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
11272                                 (uint32_t)rc);
11273                 goto out_destroy;
11274         }
11275         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11276                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
11277                         phba->sli4_hba.els_wq->queue_id,
11278                         phba->sli4_hba.els_cq->queue_id);
11279
11280         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11281                 /* Set up NVME LS Complete Queue */
11282                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
11283                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11284                                         "6091 LS %s not allocated\n",
11285                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
11286                         rc = -ENOMEM;
11287                         goto out_destroy;
11288                 }
11289                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11290                                        phba->sli4_hba.nvmels_cq,
11291                                        phba->sli4_hba.nvmels_wq,
11292                                        NULL, 0, LPFC_NVME_LS);
11293                 if (rc) {
11294                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11295                                         "0526 Failed setup of NVVME LS WQ/CQ: "
11296                                         "rc = 0x%x\n", (uint32_t)rc);
11297                         goto out_destroy;
11298                 }
11299
11300                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11301                                 "6096 ELS WQ setup: wq-id=%d, "
11302                                 "parent cq-id=%d\n",
11303                                 phba->sli4_hba.nvmels_wq->queue_id,
11304                                 phba->sli4_hba.nvmels_cq->queue_id);
11305         }
11306
11307         /*
11308          * Create NVMET Receive Queue (RQ)
11309          */
11310         if (phba->nvmet_support) {
11311                 if ((!phba->sli4_hba.nvmet_cqset) ||
11312                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
11313                     (!phba->sli4_hba.nvmet_mrq_data)) {
11314                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11315                                         "6130 MRQ CQ Queues not "
11316                                         "allocated\n");
11317                         rc = -ENOMEM;
11318                         goto out_destroy;
11319                 }
11320                 if (phba->cfg_nvmet_mrq > 1) {
11321                         rc = lpfc_mrq_create(phba,
11322                                              phba->sli4_hba.nvmet_mrq_hdr,
11323                                              phba->sli4_hba.nvmet_mrq_data,
11324                                              phba->sli4_hba.nvmet_cqset,
11325                                              LPFC_NVMET);
11326                         if (rc) {
11327                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11328                                                 "6098 Failed setup of NVMET "
11329                                                 "MRQ: rc = 0x%x\n",
11330                                                 (uint32_t)rc);
11331                                 goto out_destroy;
11332                         }
11333
11334                 } else {
11335                         rc = lpfc_rq_create(phba,
11336                                             phba->sli4_hba.nvmet_mrq_hdr[0],
11337                                             phba->sli4_hba.nvmet_mrq_data[0],
11338                                             phba->sli4_hba.nvmet_cqset[0],
11339                                             LPFC_NVMET);
11340                         if (rc) {
11341                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11342                                                 "6057 Failed setup of NVMET "
11343                                                 "Receive Queue: rc = 0x%x\n",
11344                                                 (uint32_t)rc);
11345                                 goto out_destroy;
11346                         }
11347
11348                         lpfc_printf_log(
11349                                 phba, KERN_INFO, LOG_INIT,
11350                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
11351                                 "dat-rq-id=%d parent cq-id=%d\n",
11352                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
11353                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
11354                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
11355
11356                 }
11357         }
11358
11359         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
11360                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11361                                 "0540 Receive Queue not allocated\n");
11362                 rc = -ENOMEM;
11363                 goto out_destroy;
11364         }
11365
11366         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
11367                             phba->sli4_hba.els_cq, LPFC_USOL);
11368         if (rc) {
11369                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11370                                 "0541 Failed setup of Receive Queue: "
11371                                 "rc = 0x%x\n", (uint32_t)rc);
11372                 goto out_destroy;
11373         }
11374
11375         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11376                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
11377                         "parent cq-id=%d\n",
11378                         phba->sli4_hba.hdr_rq->queue_id,
11379                         phba->sli4_hba.dat_rq->queue_id,
11380                         phba->sli4_hba.els_cq->queue_id);
11381
11382         if (phba->cfg_fcp_imax)
11383                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
11384         else
11385                 usdelay = 0;
11386
11387         for (qidx = 0; qidx < phba->cfg_irq_chann;
11388              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
11389                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
11390                                          usdelay);
11391
11392         if (phba->sli4_hba.cq_max) {
11393                 kfree(phba->sli4_hba.cq_lookup);
11394                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
11395                         sizeof(struct lpfc_queue *), GFP_KERNEL);
11396                 if (!phba->sli4_hba.cq_lookup) {
11397                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11398                                         "0549 Failed setup of CQ Lookup table: "
11399                                         "size 0x%x\n", phba->sli4_hba.cq_max);
11400                         rc = -ENOMEM;
11401                         goto out_destroy;
11402                 }
11403                 lpfc_setup_cq_lookup(phba);
11404         }
11405         return 0;
11406
11407 out_destroy:
11408         lpfc_sli4_queue_unset(phba);
11409 out_error:
11410         return rc;
11411 }
11412
11413 /**
11414  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
11415  * @phba: pointer to lpfc hba data structure.
11416  *
11417  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
11418  * operation.
11419  *
11420  * Return codes
11421  *      0 - successful
11422  *      -ENOMEM - No available memory
11423  *      -EIO - The mailbox failed to complete successfully.
11424  **/
11425 void
11426 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
11427 {
11428         struct lpfc_sli4_hdw_queue *qp;
11429         struct lpfc_queue *eq;
11430         int qidx;
11431
11432         /* Unset mailbox command work queue */
11433         if (phba->sli4_hba.mbx_wq)
11434                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
11435
11436         /* Unset NVME LS work queue */
11437         if (phba->sli4_hba.nvmels_wq)
11438                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
11439
11440         /* Unset ELS work queue */
11441         if (phba->sli4_hba.els_wq)
11442                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
11443
11444         /* Unset unsolicited receive queue */
11445         if (phba->sli4_hba.hdr_rq)
11446                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
11447                                 phba->sli4_hba.dat_rq);
11448
11449         /* Unset mailbox command complete queue */
11450         if (phba->sli4_hba.mbx_cq)
11451                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
11452
11453         /* Unset ELS complete queue */
11454         if (phba->sli4_hba.els_cq)
11455                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
11456
11457         /* Unset NVME LS complete queue */
11458         if (phba->sli4_hba.nvmels_cq)
11459                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
11460
11461         if (phba->nvmet_support) {
11462                 /* Unset NVMET MRQ queue */
11463                 if (phba->sli4_hba.nvmet_mrq_hdr) {
11464                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11465                                 lpfc_rq_destroy(
11466                                         phba,
11467                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
11468                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
11469                 }
11470
11471                 /* Unset NVMET CQ Set complete queue */
11472                 if (phba->sli4_hba.nvmet_cqset) {
11473                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11474                                 lpfc_cq_destroy(
11475                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
11476                 }
11477         }
11478
11479         /* Unset fast-path SLI4 queues */
11480         if (phba->sli4_hba.hdwq) {
11481                 /* Loop thru all Hardware Queues */
11482                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11483                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
11484                         qp = &phba->sli4_hba.hdwq[qidx];
11485                         lpfc_wq_destroy(phba, qp->io_wq);
11486                         lpfc_cq_destroy(phba, qp->io_cq);
11487                 }
11488                 /* Loop thru all IRQ vectors */
11489                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11490                         /* Destroy the EQ corresponding to the IRQ vector */
11491                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
11492                         lpfc_eq_destroy(phba, eq);
11493                 }
11494         }
11495
11496         kfree(phba->sli4_hba.cq_lookup);
11497         phba->sli4_hba.cq_lookup = NULL;
11498         phba->sli4_hba.cq_max = 0;
11499 }
11500
11501 /**
11502  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
11503  * @phba: pointer to lpfc hba data structure.
11504  *
11505  * This routine is invoked to allocate and set up a pool of completion queue
11506  * events. The body of the completion queue event is a completion queue entry
11507  * CQE. For now, this pool is used for the interrupt service routine to queue
11508  * the following HBA completion queue events for the worker thread to process:
11509  *   - Mailbox asynchronous events
11510  *   - Receive queue completion unsolicited events
11511  * Later, this can be used for all the slow-path events.
11512  *
11513  * Return codes
11514  *      0 - successful
11515  *      -ENOMEM - No available memory
11516  **/
11517 static int
11518 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
11519 {
11520         struct lpfc_cq_event *cq_event;
11521         int i;
11522
11523         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
11524                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
11525                 if (!cq_event)
11526                         goto out_pool_create_fail;
11527                 list_add_tail(&cq_event->list,
11528                               &phba->sli4_hba.sp_cqe_event_pool);
11529         }
11530         return 0;
11531
11532 out_pool_create_fail:
11533         lpfc_sli4_cq_event_pool_destroy(phba);
11534         return -ENOMEM;
11535 }
11536
11537 /**
11538  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
11539  * @phba: pointer to lpfc hba data structure.
11540  *
11541  * This routine is invoked to free the pool of completion queue events at
11542  * driver unload time. Note that, it is the responsibility of the driver
11543  * cleanup routine to free all the outstanding completion-queue events
11544  * allocated from this pool back into the pool before invoking this routine
11545  * to destroy the pool.
11546  **/
11547 static void
11548 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
11549 {
11550         struct lpfc_cq_event *cq_event, *next_cq_event;
11551
11552         list_for_each_entry_safe(cq_event, next_cq_event,
11553                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
11554                 list_del(&cq_event->list);
11555                 kfree(cq_event);
11556         }
11557 }
11558
11559 /**
11560  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11561  * @phba: pointer to lpfc hba data structure.
11562  *
11563  * This routine is the lock free version of the API invoked to allocate a
11564  * completion-queue event from the free pool.
11565  *
11566  * Return: Pointer to the newly allocated completion-queue event if successful
11567  *         NULL otherwise.
11568  **/
11569 struct lpfc_cq_event *
11570 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11571 {
11572         struct lpfc_cq_event *cq_event = NULL;
11573
11574         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
11575                          struct lpfc_cq_event, list);
11576         return cq_event;
11577 }
11578
11579 /**
11580  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11581  * @phba: pointer to lpfc hba data structure.
11582  *
11583  * This routine is the lock version of the API invoked to allocate a
11584  * completion-queue event from the free pool.
11585  *
11586  * Return: Pointer to the newly allocated completion-queue event if successful
11587  *         NULL otherwise.
11588  **/
11589 struct lpfc_cq_event *
11590 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11591 {
11592         struct lpfc_cq_event *cq_event;
11593         unsigned long iflags;
11594
11595         spin_lock_irqsave(&phba->hbalock, iflags);
11596         cq_event = __lpfc_sli4_cq_event_alloc(phba);
11597         spin_unlock_irqrestore(&phba->hbalock, iflags);
11598         return cq_event;
11599 }
11600
11601 /**
11602  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11603  * @phba: pointer to lpfc hba data structure.
11604  * @cq_event: pointer to the completion queue event to be freed.
11605  *
11606  * This routine is the lock free version of the API invoked to release a
11607  * completion-queue event back into the free pool.
11608  **/
11609 void
11610 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11611                              struct lpfc_cq_event *cq_event)
11612 {
11613         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
11614 }
11615
11616 /**
11617  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11618  * @phba: pointer to lpfc hba data structure.
11619  * @cq_event: pointer to the completion queue event to be freed.
11620  *
11621  * This routine is the lock version of the API invoked to release a
11622  * completion-queue event back into the free pool.
11623  **/
11624 void
11625 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11626                            struct lpfc_cq_event *cq_event)
11627 {
11628         unsigned long iflags;
11629         spin_lock_irqsave(&phba->hbalock, iflags);
11630         __lpfc_sli4_cq_event_release(phba, cq_event);
11631         spin_unlock_irqrestore(&phba->hbalock, iflags);
11632 }
11633
11634 /**
11635  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
11636  * @phba: pointer to lpfc hba data structure.
11637  *
11638  * This routine is to free all the pending completion-queue events to the
11639  * back into the free pool for device reset.
11640  **/
11641 static void
11642 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
11643 {
11644         LIST_HEAD(cq_event_list);
11645         struct lpfc_cq_event *cq_event;
11646         unsigned long iflags;
11647
11648         /* Retrieve all the pending WCQEs from pending WCQE lists */
11649
11650         /* Pending ELS XRI abort events */
11651         spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11652         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11653                          &cq_event_list);
11654         spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11655
11656         /* Pending asynnc events */
11657         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
11658         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
11659                          &cq_event_list);
11660         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
11661
11662         while (!list_empty(&cq_event_list)) {
11663                 list_remove_head(&cq_event_list, cq_event,
11664                                  struct lpfc_cq_event, list);
11665                 lpfc_sli4_cq_event_release(phba, cq_event);
11666         }
11667 }
11668
11669 /**
11670  * lpfc_pci_function_reset - Reset pci function.
11671  * @phba: pointer to lpfc hba data structure.
11672  *
11673  * This routine is invoked to request a PCI function reset. It will destroys
11674  * all resources assigned to the PCI function which originates this request.
11675  *
11676  * Return codes
11677  *      0 - successful
11678  *      -ENOMEM - No available memory
11679  *      -EIO - The mailbox failed to complete successfully.
11680  **/
11681 int
11682 lpfc_pci_function_reset(struct lpfc_hba *phba)
11683 {
11684         LPFC_MBOXQ_t *mboxq;
11685         uint32_t rc = 0, if_type;
11686         uint32_t shdr_status, shdr_add_status;
11687         uint32_t rdy_chk;
11688         uint32_t port_reset = 0;
11689         union lpfc_sli4_cfg_shdr *shdr;
11690         struct lpfc_register reg_data;
11691         uint16_t devid;
11692
11693         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11694         switch (if_type) {
11695         case LPFC_SLI_INTF_IF_TYPE_0:
11696                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
11697                                                        GFP_KERNEL);
11698                 if (!mboxq) {
11699                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11700                                         "0494 Unable to allocate memory for "
11701                                         "issuing SLI_FUNCTION_RESET mailbox "
11702                                         "command\n");
11703                         return -ENOMEM;
11704                 }
11705
11706                 /* Setup PCI function reset mailbox-ioctl command */
11707                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11708                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
11709                                  LPFC_SLI4_MBX_EMBED);
11710                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11711                 shdr = (union lpfc_sli4_cfg_shdr *)
11712                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11713                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11714                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
11715                                          &shdr->response);
11716                 mempool_free(mboxq, phba->mbox_mem_pool);
11717                 if (shdr_status || shdr_add_status || rc) {
11718                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11719                                         "0495 SLI_FUNCTION_RESET mailbox "
11720                                         "failed with status x%x add_status x%x,"
11721                                         " mbx status x%x\n",
11722                                         shdr_status, shdr_add_status, rc);
11723                         rc = -ENXIO;
11724                 }
11725                 break;
11726         case LPFC_SLI_INTF_IF_TYPE_2:
11727         case LPFC_SLI_INTF_IF_TYPE_6:
11728 wait:
11729                 /*
11730                  * Poll the Port Status Register and wait for RDY for
11731                  * up to 30 seconds. If the port doesn't respond, treat
11732                  * it as an error.
11733                  */
11734                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
11735                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
11736                                 STATUSregaddr, &reg_data.word0)) {
11737                                 rc = -ENODEV;
11738                                 goto out;
11739                         }
11740                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
11741                                 break;
11742                         msleep(20);
11743                 }
11744
11745                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
11746                         phba->work_status[0] = readl(
11747                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
11748                         phba->work_status[1] = readl(
11749                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
11750                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11751                                         "2890 Port not ready, port status reg "
11752                                         "0x%x error 1=0x%x, error 2=0x%x\n",
11753                                         reg_data.word0,
11754                                         phba->work_status[0],
11755                                         phba->work_status[1]);
11756                         rc = -ENODEV;
11757                         goto out;
11758                 }
11759
11760                 if (bf_get(lpfc_sliport_status_pldv, &reg_data))
11761                         lpfc_pldv_detect = true;
11762
11763                 if (!port_reset) {
11764                         /*
11765                          * Reset the port now
11766                          */
11767                         reg_data.word0 = 0;
11768                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
11769                                LPFC_SLIPORT_LITTLE_ENDIAN);
11770                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
11771                                LPFC_SLIPORT_INIT_PORT);
11772                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
11773                                CTRLregaddr);
11774                         /* flush */
11775                         pci_read_config_word(phba->pcidev,
11776                                              PCI_DEVICE_ID, &devid);
11777
11778                         port_reset = 1;
11779                         msleep(20);
11780                         goto wait;
11781                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
11782                         rc = -ENODEV;
11783                         goto out;
11784                 }
11785                 break;
11786
11787         case LPFC_SLI_INTF_IF_TYPE_1:
11788         default:
11789                 break;
11790         }
11791
11792 out:
11793         /* Catch the not-ready port failure after a port reset. */
11794         if (rc) {
11795                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11796                                 "3317 HBA not functional: IP Reset Failed "
11797                                 "try: echo fw_reset > board_mode\n");
11798                 rc = -ENODEV;
11799         }
11800
11801         return rc;
11802 }
11803
11804 /**
11805  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
11806  * @phba: pointer to lpfc hba data structure.
11807  *
11808  * This routine is invoked to set up the PCI device memory space for device
11809  * with SLI-4 interface spec.
11810  *
11811  * Return codes
11812  *      0 - successful
11813  *      other values - error
11814  **/
11815 static int
11816 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
11817 {
11818         struct pci_dev *pdev = phba->pcidev;
11819         unsigned long bar0map_len, bar1map_len, bar2map_len;
11820         int error;
11821         uint32_t if_type;
11822
11823         if (!pdev)
11824                 return -ENODEV;
11825
11826         /* Set the device DMA mask size */
11827         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
11828         if (error)
11829                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
11830         if (error)
11831                 return error;
11832
11833         /*
11834          * The BARs and register set definitions and offset locations are
11835          * dependent on the if_type.
11836          */
11837         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
11838                                   &phba->sli4_hba.sli_intf.word0)) {
11839                 return -ENODEV;
11840         }
11841
11842         /* There is no SLI3 failback for SLI4 devices. */
11843         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
11844             LPFC_SLI_INTF_VALID) {
11845                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11846                                 "2894 SLI_INTF reg contents invalid "
11847                                 "sli_intf reg 0x%x\n",
11848                                 phba->sli4_hba.sli_intf.word0);
11849                 return -ENODEV;
11850         }
11851
11852         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11853         /*
11854          * Get the bus address of SLI4 device Bar regions and the
11855          * number of bytes required by each mapping. The mapping of the
11856          * particular PCI BARs regions is dependent on the type of
11857          * SLI4 device.
11858          */
11859         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
11860                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
11861                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
11862
11863                 /*
11864                  * Map SLI4 PCI Config Space Register base to a kernel virtual
11865                  * addr
11866                  */
11867                 phba->sli4_hba.conf_regs_memmap_p =
11868                         ioremap(phba->pci_bar0_map, bar0map_len);
11869                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11870                         dev_printk(KERN_ERR, &pdev->dev,
11871                                    "ioremap failed for SLI4 PCI config "
11872                                    "registers.\n");
11873                         return -ENODEV;
11874                 }
11875                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
11876                 /* Set up BAR0 PCI config space register memory map */
11877                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11878         } else {
11879                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
11880                 bar0map_len = pci_resource_len(pdev, 1);
11881                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
11882                         dev_printk(KERN_ERR, &pdev->dev,
11883                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
11884                         return -ENODEV;
11885                 }
11886                 phba->sli4_hba.conf_regs_memmap_p =
11887                                 ioremap(phba->pci_bar0_map, bar0map_len);
11888                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11889                         dev_printk(KERN_ERR, &pdev->dev,
11890                                 "ioremap failed for SLI4 PCI config "
11891                                 "registers.\n");
11892                         return -ENODEV;
11893                 }
11894                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11895         }
11896
11897         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11898                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
11899                         /*
11900                          * Map SLI4 if type 0 HBA Control Register base to a
11901                          * kernel virtual address and setup the registers.
11902                          */
11903                         phba->pci_bar1_map = pci_resource_start(pdev,
11904                                                                 PCI_64BIT_BAR2);
11905                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11906                         phba->sli4_hba.ctrl_regs_memmap_p =
11907                                         ioremap(phba->pci_bar1_map,
11908                                                 bar1map_len);
11909                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
11910                                 dev_err(&pdev->dev,
11911                                            "ioremap failed for SLI4 HBA "
11912                                             "control registers.\n");
11913                                 error = -ENOMEM;
11914                                 goto out_iounmap_conf;
11915                         }
11916                         phba->pci_bar2_memmap_p =
11917                                          phba->sli4_hba.ctrl_regs_memmap_p;
11918                         lpfc_sli4_bar1_register_memmap(phba, if_type);
11919                 } else {
11920                         error = -ENOMEM;
11921                         goto out_iounmap_conf;
11922                 }
11923         }
11924
11925         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
11926             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
11927                 /*
11928                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
11929                  * virtual address and setup the registers.
11930                  */
11931                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
11932                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11933                 phba->sli4_hba.drbl_regs_memmap_p =
11934                                 ioremap(phba->pci_bar1_map, bar1map_len);
11935                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
11936                         dev_err(&pdev->dev,
11937                            "ioremap failed for SLI4 HBA doorbell registers.\n");
11938                         error = -ENOMEM;
11939                         goto out_iounmap_conf;
11940                 }
11941                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
11942                 lpfc_sli4_bar1_register_memmap(phba, if_type);
11943         }
11944
11945         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11946                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11947                         /*
11948                          * Map SLI4 if type 0 HBA Doorbell Register base to
11949                          * a kernel virtual address and setup the registers.
11950                          */
11951                         phba->pci_bar2_map = pci_resource_start(pdev,
11952                                                                 PCI_64BIT_BAR4);
11953                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11954                         phba->sli4_hba.drbl_regs_memmap_p =
11955                                         ioremap(phba->pci_bar2_map,
11956                                                 bar2map_len);
11957                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
11958                                 dev_err(&pdev->dev,
11959                                            "ioremap failed for SLI4 HBA"
11960                                            " doorbell registers.\n");
11961                                 error = -ENOMEM;
11962                                 goto out_iounmap_ctrl;
11963                         }
11964                         phba->pci_bar4_memmap_p =
11965                                         phba->sli4_hba.drbl_regs_memmap_p;
11966                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
11967                         if (error)
11968                                 goto out_iounmap_all;
11969                 } else {
11970                         error = -ENOMEM;
11971                         goto out_iounmap_ctrl;
11972                 }
11973         }
11974
11975         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
11976             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11977                 /*
11978                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
11979                  * virtual address and setup the registers.
11980                  */
11981                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
11982                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11983                 phba->sli4_hba.dpp_regs_memmap_p =
11984                                 ioremap(phba->pci_bar2_map, bar2map_len);
11985                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
11986                         dev_err(&pdev->dev,
11987                            "ioremap failed for SLI4 HBA dpp registers.\n");
11988                         error = -ENOMEM;
11989                         goto out_iounmap_all;
11990                 }
11991                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
11992         }
11993
11994         /* Set up the EQ/CQ register handeling functions now */
11995         switch (if_type) {
11996         case LPFC_SLI_INTF_IF_TYPE_0:
11997         case LPFC_SLI_INTF_IF_TYPE_2:
11998                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
11999                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
12000                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
12001                 break;
12002         case LPFC_SLI_INTF_IF_TYPE_6:
12003                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
12004                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
12005                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
12006                 break;
12007         default:
12008                 break;
12009         }
12010
12011         return 0;
12012
12013 out_iounmap_all:
12014         if (phba->sli4_hba.drbl_regs_memmap_p)
12015                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
12016 out_iounmap_ctrl:
12017         if (phba->sli4_hba.ctrl_regs_memmap_p)
12018                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
12019 out_iounmap_conf:
12020         iounmap(phba->sli4_hba.conf_regs_memmap_p);
12021
12022         return error;
12023 }
12024
12025 /**
12026  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
12027  * @phba: pointer to lpfc hba data structure.
12028  *
12029  * This routine is invoked to unset the PCI device memory space for device
12030  * with SLI-4 interface spec.
12031  **/
12032 static void
12033 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
12034 {
12035         uint32_t if_type;
12036         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
12037
12038         switch (if_type) {
12039         case LPFC_SLI_INTF_IF_TYPE_0:
12040                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
12041                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
12042                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
12043                 break;
12044         case LPFC_SLI_INTF_IF_TYPE_2:
12045                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
12046                 break;
12047         case LPFC_SLI_INTF_IF_TYPE_6:
12048                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
12049                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
12050                 if (phba->sli4_hba.dpp_regs_memmap_p)
12051                         iounmap(phba->sli4_hba.dpp_regs_memmap_p);
12052                 break;
12053         case LPFC_SLI_INTF_IF_TYPE_1:
12054                 break;
12055         default:
12056                 dev_printk(KERN_ERR, &phba->pcidev->dev,
12057                            "FATAL - unsupported SLI4 interface type - %d\n",
12058                            if_type);
12059                 break;
12060         }
12061 }
12062
12063 /**
12064  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
12065  * @phba: pointer to lpfc hba data structure.
12066  *
12067  * This routine is invoked to enable the MSI-X interrupt vectors to device
12068  * with SLI-3 interface specs.
12069  *
12070  * Return codes
12071  *   0 - successful
12072  *   other values - error
12073  **/
12074 static int
12075 lpfc_sli_enable_msix(struct lpfc_hba *phba)
12076 {
12077         int rc;
12078         LPFC_MBOXQ_t *pmb;
12079
12080         /* Set up MSI-X multi-message vectors */
12081         rc = pci_alloc_irq_vectors(phba->pcidev,
12082                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
12083         if (rc < 0) {
12084                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12085                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
12086                 goto vec_fail_out;
12087         }
12088
12089         /*
12090          * Assign MSI-X vectors to interrupt handlers
12091          */
12092
12093         /* vector-0 is associated to slow-path handler */
12094         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
12095                          &lpfc_sli_sp_intr_handler, 0,
12096                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
12097         if (rc) {
12098                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12099                                 "0421 MSI-X slow-path request_irq failed "
12100                                 "(%d)\n", rc);
12101                 goto msi_fail_out;
12102         }
12103
12104         /* vector-1 is associated to fast-path handler */
12105         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
12106                          &lpfc_sli_fp_intr_handler, 0,
12107                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
12108
12109         if (rc) {
12110                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12111                                 "0429 MSI-X fast-path request_irq failed "
12112                                 "(%d)\n", rc);
12113                 goto irq_fail_out;
12114         }
12115
12116         /*
12117          * Configure HBA MSI-X attention conditions to messages
12118          */
12119         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12120
12121         if (!pmb) {
12122                 rc = -ENOMEM;
12123                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12124                                 "0474 Unable to allocate memory for issuing "
12125                                 "MBOX_CONFIG_MSI command\n");
12126                 goto mem_fail_out;
12127         }
12128         rc = lpfc_config_msi(phba, pmb);
12129         if (rc)
12130                 goto mbx_fail_out;
12131         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
12132         if (rc != MBX_SUCCESS) {
12133                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
12134                                 "0351 Config MSI mailbox command failed, "
12135                                 "mbxCmd x%x, mbxStatus x%x\n",
12136                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
12137                 goto mbx_fail_out;
12138         }
12139
12140         /* Free memory allocated for mailbox command */
12141         mempool_free(pmb, phba->mbox_mem_pool);
12142         return rc;
12143
12144 mbx_fail_out:
12145         /* Free memory allocated for mailbox command */
12146         mempool_free(pmb, phba->mbox_mem_pool);
12147
12148 mem_fail_out:
12149         /* free the irq already requested */
12150         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
12151
12152 irq_fail_out:
12153         /* free the irq already requested */
12154         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
12155
12156 msi_fail_out:
12157         /* Unconfigure MSI-X capability structure */
12158         pci_free_irq_vectors(phba->pcidev);
12159
12160 vec_fail_out:
12161         return rc;
12162 }
12163
12164 /**
12165  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
12166  * @phba: pointer to lpfc hba data structure.
12167  *
12168  * This routine is invoked to enable the MSI interrupt mode to device with
12169  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
12170  * enable the MSI vector. The device driver is responsible for calling the
12171  * request_irq() to register MSI vector with a interrupt the handler, which
12172  * is done in this function.
12173  *
12174  * Return codes
12175  *      0 - successful
12176  *      other values - error
12177  */
12178 static int
12179 lpfc_sli_enable_msi(struct lpfc_hba *phba)
12180 {
12181         int rc;
12182
12183         rc = pci_enable_msi(phba->pcidev);
12184         if (!rc)
12185                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12186                                 "0012 PCI enable MSI mode success.\n");
12187         else {
12188                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12189                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
12190                 return rc;
12191         }
12192
12193         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12194                          0, LPFC_DRIVER_NAME, phba);
12195         if (rc) {
12196                 pci_disable_msi(phba->pcidev);
12197                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12198                                 "0478 MSI request_irq failed (%d)\n", rc);
12199         }
12200         return rc;
12201 }
12202
12203 /**
12204  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
12205  * @phba: pointer to lpfc hba data structure.
12206  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
12207  *
12208  * This routine is invoked to enable device interrupt and associate driver's
12209  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
12210  * spec. Depends on the interrupt mode configured to the driver, the driver
12211  * will try to fallback from the configured interrupt mode to an interrupt
12212  * mode which is supported by the platform, kernel, and device in the order
12213  * of:
12214  * MSI-X -> MSI -> IRQ.
12215  *
12216  * Return codes
12217  *   0 - successful
12218  *   other values - error
12219  **/
12220 static uint32_t
12221 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
12222 {
12223         uint32_t intr_mode = LPFC_INTR_ERROR;
12224         int retval;
12225
12226         /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
12227         retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
12228         if (retval)
12229                 return intr_mode;
12230         clear_bit(HBA_NEEDS_CFG_PORT, &phba->hba_flag);
12231
12232         if (cfg_mode == 2) {
12233                 /* Now, try to enable MSI-X interrupt mode */
12234                 retval = lpfc_sli_enable_msix(phba);
12235                 if (!retval) {
12236                         /* Indicate initialization to MSI-X mode */
12237                         phba->intr_type = MSIX;
12238                         intr_mode = 2;
12239                 }
12240         }
12241
12242         /* Fallback to MSI if MSI-X initialization failed */
12243         if (cfg_mode >= 1 && phba->intr_type == NONE) {
12244                 retval = lpfc_sli_enable_msi(phba);
12245                 if (!retval) {
12246                         /* Indicate initialization to MSI mode */
12247                         phba->intr_type = MSI;
12248                         intr_mode = 1;
12249                 }
12250         }
12251
12252         /* Fallback to INTx if both MSI-X/MSI initalization failed */
12253         if (phba->intr_type == NONE) {
12254                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12255                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
12256                 if (!retval) {
12257                         /* Indicate initialization to INTx mode */
12258                         phba->intr_type = INTx;
12259                         intr_mode = 0;
12260                 }
12261         }
12262         return intr_mode;
12263 }
12264
12265 /**
12266  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
12267  * @phba: pointer to lpfc hba data structure.
12268  *
12269  * This routine is invoked to disable device interrupt and disassociate the
12270  * driver's interrupt handler(s) from interrupt vector(s) to device with
12271  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
12272  * release the interrupt vector(s) for the message signaled interrupt.
12273  **/
12274 static void
12275 lpfc_sli_disable_intr(struct lpfc_hba *phba)
12276 {
12277         int nr_irqs, i;
12278
12279         if (phba->intr_type == MSIX)
12280                 nr_irqs = LPFC_MSIX_VECTORS;
12281         else
12282                 nr_irqs = 1;
12283
12284         for (i = 0; i < nr_irqs; i++)
12285                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
12286         pci_free_irq_vectors(phba->pcidev);
12287
12288         /* Reset interrupt management states */
12289         phba->intr_type = NONE;
12290         phba->sli.slistat.sli_intr = 0;
12291 }
12292
12293 /**
12294  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
12295  * @phba: pointer to lpfc hba data structure.
12296  * @id: EQ vector index or Hardware Queue index
12297  * @match: LPFC_FIND_BY_EQ = match by EQ
12298  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
12299  * Return the CPU that matches the selection criteria
12300  */
12301 static uint16_t
12302 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
12303 {
12304         struct lpfc_vector_map_info *cpup;
12305         int cpu;
12306
12307         /* Loop through all CPUs */
12308         for_each_present_cpu(cpu) {
12309                 cpup = &phba->sli4_hba.cpu_map[cpu];
12310
12311                 /* If we are matching by EQ, there may be multiple CPUs using
12312                  * using the same vector, so select the one with
12313                  * LPFC_CPU_FIRST_IRQ set.
12314                  */
12315                 if ((match == LPFC_FIND_BY_EQ) &&
12316                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
12317                     (cpup->eq == id))
12318                         return cpu;
12319
12320                 /* If matching by HDWQ, select the first CPU that matches */
12321                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
12322                         return cpu;
12323         }
12324         return 0;
12325 }
12326
12327 #ifdef CONFIG_X86
12328 /**
12329  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
12330  * @phba: pointer to lpfc hba data structure.
12331  * @cpu: CPU map index
12332  * @phys_id: CPU package physical id
12333  * @core_id: CPU core id
12334  */
12335 static int
12336 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
12337                 uint16_t phys_id, uint16_t core_id)
12338 {
12339         struct lpfc_vector_map_info *cpup;
12340         int idx;
12341
12342         for_each_present_cpu(idx) {
12343                 cpup = &phba->sli4_hba.cpu_map[idx];
12344                 /* Does the cpup match the one we are looking for */
12345                 if ((cpup->phys_id == phys_id) &&
12346                     (cpup->core_id == core_id) &&
12347                     (cpu != idx))
12348                         return 1;
12349         }
12350         return 0;
12351 }
12352 #endif
12353
12354 /*
12355  * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
12356  * @phba: pointer to lpfc hba data structure.
12357  * @eqidx: index for eq and irq vector
12358  * @flag: flags to set for vector_map structure
12359  * @cpu: cpu used to index vector_map structure
12360  *
12361  * The routine assigns eq info into vector_map structure
12362  */
12363 static inline void
12364 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
12365                         unsigned int cpu)
12366 {
12367         struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
12368         struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
12369
12370         cpup->eq = eqidx;
12371         cpup->flag |= flag;
12372
12373         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12374                         "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
12375                         cpu, eqhdl->irq, cpup->eq, cpup->flag);
12376 }
12377
12378 /**
12379  * lpfc_cpu_map_array_init - Initialize cpu_map structure
12380  * @phba: pointer to lpfc hba data structure.
12381  *
12382  * The routine initializes the cpu_map array structure
12383  */
12384 static void
12385 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
12386 {
12387         struct lpfc_vector_map_info *cpup;
12388         struct lpfc_eq_intr_info *eqi;
12389         int cpu;
12390
12391         for_each_possible_cpu(cpu) {
12392                 cpup = &phba->sli4_hba.cpu_map[cpu];
12393                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
12394                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
12395                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
12396                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
12397                 cpup->flag = 0;
12398                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
12399                 INIT_LIST_HEAD(&eqi->list);
12400                 eqi->icnt = 0;
12401         }
12402 }
12403
12404 /**
12405  * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
12406  * @phba: pointer to lpfc hba data structure.
12407  *
12408  * The routine initializes the hba_eq_hdl array structure
12409  */
12410 static void
12411 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
12412 {
12413         struct lpfc_hba_eq_hdl *eqhdl;
12414         int i;
12415
12416         for (i = 0; i < phba->cfg_irq_chann; i++) {
12417                 eqhdl = lpfc_get_eq_hdl(i);
12418                 eqhdl->irq = LPFC_IRQ_EMPTY;
12419                 eqhdl->phba = phba;
12420         }
12421 }
12422
12423 /**
12424  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
12425  * @phba: pointer to lpfc hba data structure.
12426  * @vectors: number of msix vectors allocated.
12427  *
12428  * The routine will figure out the CPU affinity assignment for every
12429  * MSI-X vector allocated for the HBA.
12430  * In addition, the CPU to IO channel mapping will be calculated
12431  * and the phba->sli4_hba.cpu_map array will reflect this.
12432  */
12433 static void
12434 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
12435 {
12436         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
12437         int max_phys_id, min_phys_id;
12438         int max_core_id, min_core_id;
12439         struct lpfc_vector_map_info *cpup;
12440         struct lpfc_vector_map_info *new_cpup;
12441 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12442         struct lpfc_hdwq_stat *c_stat;
12443 #endif
12444
12445         max_phys_id = 0;
12446         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
12447         max_core_id = 0;
12448         min_core_id = LPFC_VECTOR_MAP_EMPTY;
12449
12450         /* Update CPU map with physical id and core id of each CPU */
12451         for_each_present_cpu(cpu) {
12452                 cpup = &phba->sli4_hba.cpu_map[cpu];
12453 #ifdef CONFIG_X86
12454                 cpup->phys_id = topology_physical_package_id(cpu);
12455                 cpup->core_id = topology_core_id(cpu);
12456                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
12457                         cpup->flag |= LPFC_CPU_MAP_HYPER;
12458 #else
12459                 /* No distinction between CPUs for other platforms */
12460                 cpup->phys_id = 0;
12461                 cpup->core_id = cpu;
12462 #endif
12463
12464                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12465                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
12466                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
12467
12468                 if (cpup->phys_id > max_phys_id)
12469                         max_phys_id = cpup->phys_id;
12470                 if (cpup->phys_id < min_phys_id)
12471                         min_phys_id = cpup->phys_id;
12472
12473                 if (cpup->core_id > max_core_id)
12474                         max_core_id = cpup->core_id;
12475                 if (cpup->core_id < min_core_id)
12476                         min_core_id = cpup->core_id;
12477         }
12478
12479         /* After looking at each irq vector assigned to this pcidev, its
12480          * possible to see that not ALL CPUs have been accounted for.
12481          * Next we will set any unassigned (unaffinitized) cpu map
12482          * entries to a IRQ on the same phys_id.
12483          */
12484         first_cpu = cpumask_first(cpu_present_mask);
12485         start_cpu = first_cpu;
12486
12487         for_each_present_cpu(cpu) {
12488                 cpup = &phba->sli4_hba.cpu_map[cpu];
12489
12490                 /* Is this CPU entry unassigned */
12491                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12492                         /* Mark CPU as IRQ not assigned by the kernel */
12493                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12494
12495                         /* If so, find a new_cpup that is on the SAME
12496                          * phys_id as cpup. start_cpu will start where we
12497                          * left off so all unassigned entries don't get assgined
12498                          * the IRQ of the first entry.
12499                          */
12500                         new_cpu = start_cpu;
12501                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12502                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12503                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12504                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
12505                                     (new_cpup->phys_id == cpup->phys_id))
12506                                         goto found_same;
12507                                 new_cpu = lpfc_next_present_cpu(new_cpu);
12508                         }
12509                         /* At this point, we leave the CPU as unassigned */
12510                         continue;
12511 found_same:
12512                         /* We found a matching phys_id, so copy the IRQ info */
12513                         cpup->eq = new_cpup->eq;
12514
12515                         /* Bump start_cpu to the next slot to minmize the
12516                          * chance of having multiple unassigned CPU entries
12517                          * selecting the same IRQ.
12518                          */
12519                         start_cpu = lpfc_next_present_cpu(new_cpu);
12520
12521                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12522                                         "3337 Set Affinity: CPU %d "
12523                                         "eq %d from peer cpu %d same "
12524                                         "phys_id (%d)\n",
12525                                         cpu, cpup->eq, new_cpu,
12526                                         cpup->phys_id);
12527                 }
12528         }
12529
12530         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
12531         start_cpu = first_cpu;
12532
12533         for_each_present_cpu(cpu) {
12534                 cpup = &phba->sli4_hba.cpu_map[cpu];
12535
12536                 /* Is this entry unassigned */
12537                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12538                         /* Mark it as IRQ not assigned by the kernel */
12539                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12540
12541                         /* If so, find a new_cpup thats on ANY phys_id
12542                          * as the cpup. start_cpu will start where we
12543                          * left off so all unassigned entries don't get
12544                          * assigned the IRQ of the first entry.
12545                          */
12546                         new_cpu = start_cpu;
12547                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12548                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12549                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12550                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
12551                                         goto found_any;
12552                                 new_cpu = lpfc_next_present_cpu(new_cpu);
12553                         }
12554                         /* We should never leave an entry unassigned */
12555                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12556                                         "3339 Set Affinity: CPU %d "
12557                                         "eq %d UNASSIGNED\n",
12558                                         cpup->hdwq, cpup->eq);
12559                         continue;
12560 found_any:
12561                         /* We found an available entry, copy the IRQ info */
12562                         cpup->eq = new_cpup->eq;
12563
12564                         /* Bump start_cpu to the next slot to minmize the
12565                          * chance of having multiple unassigned CPU entries
12566                          * selecting the same IRQ.
12567                          */
12568                         start_cpu = lpfc_next_present_cpu(new_cpu);
12569
12570                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12571                                         "3338 Set Affinity: CPU %d "
12572                                         "eq %d from peer cpu %d (%d/%d)\n",
12573                                         cpu, cpup->eq, new_cpu,
12574                                         new_cpup->phys_id, new_cpup->core_id);
12575                 }
12576         }
12577
12578         /* Assign hdwq indices that are unique across all cpus in the map
12579          * that are also FIRST_CPUs.
12580          */
12581         idx = 0;
12582         for_each_present_cpu(cpu) {
12583                 cpup = &phba->sli4_hba.cpu_map[cpu];
12584
12585                 /* Only FIRST IRQs get a hdwq index assignment. */
12586                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12587                         continue;
12588
12589                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
12590                 cpup->hdwq = idx;
12591                 idx++;
12592                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12593                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
12594                                 "hdwq %d eq %d flg x%x\n",
12595                                 cpu, cpup->phys_id, cpup->core_id,
12596                                 cpup->hdwq, cpup->eq, cpup->flag);
12597         }
12598         /* Associate a hdwq with each cpu_map entry
12599          * This will be 1 to 1 - hdwq to cpu, unless there are less
12600          * hardware queues then CPUs. For that case we will just round-robin
12601          * the available hardware queues as they get assigned to CPUs.
12602          * The next_idx is the idx from the FIRST_CPU loop above to account
12603          * for irq_chann < hdwq.  The idx is used for round-robin assignments
12604          * and needs to start at 0.
12605          */
12606         next_idx = idx;
12607         start_cpu = 0;
12608         idx = 0;
12609         for_each_present_cpu(cpu) {
12610                 cpup = &phba->sli4_hba.cpu_map[cpu];
12611
12612                 /* FIRST cpus are already mapped. */
12613                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
12614                         continue;
12615
12616                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
12617                  * of the unassigned cpus to the next idx so that all
12618                  * hdw queues are fully utilized.
12619                  */
12620                 if (next_idx < phba->cfg_hdw_queue) {
12621                         cpup->hdwq = next_idx;
12622                         next_idx++;
12623                         continue;
12624                 }
12625
12626                 /* Not a First CPU and all hdw_queues are used.  Reuse a
12627                  * Hardware Queue for another CPU, so be smart about it
12628                  * and pick one that has its IRQ/EQ mapped to the same phys_id
12629                  * (CPU package) and core_id.
12630                  */
12631                 new_cpu = start_cpu;
12632                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12633                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12634                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12635                             new_cpup->phys_id == cpup->phys_id &&
12636                             new_cpup->core_id == cpup->core_id) {
12637                                 goto found_hdwq;
12638                         }
12639                         new_cpu = lpfc_next_present_cpu(new_cpu);
12640                 }
12641
12642                 /* If we can't match both phys_id and core_id,
12643                  * settle for just a phys_id match.
12644                  */
12645                 new_cpu = start_cpu;
12646                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12647                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12648                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12649                             new_cpup->phys_id == cpup->phys_id)
12650                                 goto found_hdwq;
12651                         new_cpu = lpfc_next_present_cpu(new_cpu);
12652                 }
12653
12654                 /* Otherwise just round robin on cfg_hdw_queue */
12655                 cpup->hdwq = idx % phba->cfg_hdw_queue;
12656                 idx++;
12657                 goto logit;
12658  found_hdwq:
12659                 /* We found an available entry, copy the IRQ info */
12660                 start_cpu = lpfc_next_present_cpu(new_cpu);
12661                 cpup->hdwq = new_cpup->hdwq;
12662  logit:
12663                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12664                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
12665                                 "hdwq %d eq %d flg x%x\n",
12666                                 cpu, cpup->phys_id, cpup->core_id,
12667                                 cpup->hdwq, cpup->eq, cpup->flag);
12668         }
12669
12670         /*
12671          * Initialize the cpu_map slots for not-present cpus in case
12672          * a cpu is hot-added. Perform a simple hdwq round robin assignment.
12673          */
12674         idx = 0;
12675         for_each_possible_cpu(cpu) {
12676                 cpup = &phba->sli4_hba.cpu_map[cpu];
12677 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12678                 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
12679                 c_stat->hdwq_no = cpup->hdwq;
12680 #endif
12681                 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
12682                         continue;
12683
12684                 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
12685 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12686                 c_stat->hdwq_no = cpup->hdwq;
12687 #endif
12688                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12689                                 "3340 Set Affinity: not present "
12690                                 "CPU %d hdwq %d\n",
12691                                 cpu, cpup->hdwq);
12692         }
12693
12694         /* The cpu_map array will be used later during initialization
12695          * when EQ / CQ / WQs are allocated and configured.
12696          */
12697         return;
12698 }
12699
12700 /**
12701  * lpfc_cpuhp_get_eq
12702  *
12703  * @phba:   pointer to lpfc hba data structure.
12704  * @cpu:    cpu going offline
12705  * @eqlist: eq list to append to
12706  */
12707 static int
12708 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
12709                   struct list_head *eqlist)
12710 {
12711         const struct cpumask *maskp;
12712         struct lpfc_queue *eq;
12713         struct cpumask *tmp;
12714         u16 idx;
12715
12716         tmp = kzalloc(cpumask_size(), GFP_KERNEL);
12717         if (!tmp)
12718                 return -ENOMEM;
12719
12720         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12721                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
12722                 if (!maskp)
12723                         continue;
12724                 /*
12725                  * if irq is not affinitized to the cpu going
12726                  * then we don't need to poll the eq attached
12727                  * to it.
12728                  */
12729                 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
12730                         continue;
12731                 /* get the cpus that are online and are affini-
12732                  * tized to this irq vector.  If the count is
12733                  * more than 1 then cpuhp is not going to shut-
12734                  * down this vector.  Since this cpu has not
12735                  * gone offline yet, we need >1.
12736                  */
12737                 cpumask_and(tmp, maskp, cpu_online_mask);
12738                 if (cpumask_weight(tmp) > 1)
12739                         continue;
12740
12741                 /* Now that we have an irq to shutdown, get the eq
12742                  * mapped to this irq.  Note: multiple hdwq's in
12743                  * the software can share an eq, but eventually
12744                  * only eq will be mapped to this vector
12745                  */
12746                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
12747                 list_add(&eq->_poll_list, eqlist);
12748         }
12749         kfree(tmp);
12750         return 0;
12751 }
12752
12753 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
12754 {
12755         if (phba->sli_rev != LPFC_SLI_REV4)
12756                 return;
12757
12758         cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
12759                                             &phba->cpuhp);
12760         /*
12761          * unregistering the instance doesn't stop the polling
12762          * timer. Wait for the poll timer to retire.
12763          */
12764         synchronize_rcu();
12765         del_timer_sync(&phba->cpuhp_poll_timer);
12766 }
12767
12768 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
12769 {
12770         if (phba->pport &&
12771             test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag))
12772                 return;
12773
12774         __lpfc_cpuhp_remove(phba);
12775 }
12776
12777 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
12778 {
12779         if (phba->sli_rev != LPFC_SLI_REV4)
12780                 return;
12781
12782         rcu_read_lock();
12783
12784         if (!list_empty(&phba->poll_list))
12785                 mod_timer(&phba->cpuhp_poll_timer,
12786                           jiffies + msecs_to_jiffies(LPFC_POLL_HB));
12787
12788         rcu_read_unlock();
12789
12790         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
12791                                          &phba->cpuhp);
12792 }
12793
12794 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
12795 {
12796         if (test_bit(FC_UNLOADING, &phba->pport->load_flag)) {
12797                 *retval = -EAGAIN;
12798                 return true;
12799         }
12800
12801         if (phba->sli_rev != LPFC_SLI_REV4) {
12802                 *retval = 0;
12803                 return true;
12804         }
12805
12806         /* proceed with the hotplug */
12807         return false;
12808 }
12809
12810 /**
12811  * lpfc_irq_set_aff - set IRQ affinity
12812  * @eqhdl: EQ handle
12813  * @cpu: cpu to set affinity
12814  *
12815  **/
12816 static inline void
12817 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
12818 {
12819         cpumask_clear(&eqhdl->aff_mask);
12820         cpumask_set_cpu(cpu, &eqhdl->aff_mask);
12821         irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12822         irq_set_affinity(eqhdl->irq, &eqhdl->aff_mask);
12823 }
12824
12825 /**
12826  * lpfc_irq_clear_aff - clear IRQ affinity
12827  * @eqhdl: EQ handle
12828  *
12829  **/
12830 static inline void
12831 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
12832 {
12833         cpumask_clear(&eqhdl->aff_mask);
12834         irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12835 }
12836
12837 /**
12838  * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
12839  * @phba: pointer to HBA context object.
12840  * @cpu: cpu going offline/online
12841  * @offline: true, cpu is going offline. false, cpu is coming online.
12842  *
12843  * If cpu is going offline, we'll try our best effort to find the next
12844  * online cpu on the phba's original_mask and migrate all offlining IRQ
12845  * affinities.
12846  *
12847  * If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
12848  *
12849  * Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
12850  *       PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
12851  *
12852  **/
12853 static void
12854 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
12855 {
12856         struct lpfc_vector_map_info *cpup;
12857         struct cpumask *aff_mask;
12858         unsigned int cpu_select, cpu_next, idx;
12859         const struct cpumask *orig_mask;
12860
12861         if (phba->irq_chann_mode == NORMAL_MODE)
12862                 return;
12863
12864         orig_mask = &phba->sli4_hba.irq_aff_mask;
12865
12866         if (!cpumask_test_cpu(cpu, orig_mask))
12867                 return;
12868
12869         cpup = &phba->sli4_hba.cpu_map[cpu];
12870
12871         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12872                 return;
12873
12874         if (offline) {
12875                 /* Find next online CPU on original mask */
12876                 cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
12877                 cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
12878
12879                 /* Found a valid CPU */
12880                 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
12881                         /* Go through each eqhdl and ensure offlining
12882                          * cpu aff_mask is migrated
12883                          */
12884                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12885                                 aff_mask = lpfc_get_aff_mask(idx);
12886
12887                                 /* Migrate affinity */
12888                                 if (cpumask_test_cpu(cpu, aff_mask))
12889                                         lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
12890                                                          cpu_select);
12891                         }
12892                 } else {
12893                         /* Rely on irqbalance if no online CPUs left on NUMA */
12894                         for (idx = 0; idx < phba->cfg_irq_chann; idx++)
12895                                 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
12896                 }
12897         } else {
12898                 /* Migrate affinity back to this CPU */
12899                 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
12900         }
12901 }
12902
12903 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
12904 {
12905         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12906         struct lpfc_queue *eq, *next;
12907         LIST_HEAD(eqlist);
12908         int retval;
12909
12910         if (!phba) {
12911                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12912                 return 0;
12913         }
12914
12915         if (__lpfc_cpuhp_checks(phba, &retval))
12916                 return retval;
12917
12918         lpfc_irq_rebalance(phba, cpu, true);
12919
12920         retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
12921         if (retval)
12922                 return retval;
12923
12924         /* start polling on these eq's */
12925         list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
12926                 list_del_init(&eq->_poll_list);
12927                 lpfc_sli4_start_polling(eq);
12928         }
12929
12930         return 0;
12931 }
12932
12933 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
12934 {
12935         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12936         struct lpfc_queue *eq, *next;
12937         unsigned int n;
12938         int retval;
12939
12940         if (!phba) {
12941                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12942                 return 0;
12943         }
12944
12945         if (__lpfc_cpuhp_checks(phba, &retval))
12946                 return retval;
12947
12948         lpfc_irq_rebalance(phba, cpu, false);
12949
12950         list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
12951                 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
12952                 if (n == cpu)
12953                         lpfc_sli4_stop_polling(eq);
12954         }
12955
12956         return 0;
12957 }
12958
12959 /**
12960  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
12961  * @phba: pointer to lpfc hba data structure.
12962  *
12963  * This routine is invoked to enable the MSI-X interrupt vectors to device
12964  * with SLI-4 interface spec.  It also allocates MSI-X vectors and maps them
12965  * to cpus on the system.
12966  *
12967  * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
12968  * the number of cpus on the same numa node as this adapter.  The vectors are
12969  * allocated without requesting OS affinity mapping.  A vector will be
12970  * allocated and assigned to each online and offline cpu.  If the cpu is
12971  * online, then affinity will be set to that cpu.  If the cpu is offline, then
12972  * affinity will be set to the nearest peer cpu within the numa node that is
12973  * online.  If there are no online cpus within the numa node, affinity is not
12974  * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
12975  * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
12976  * configured.
12977  *
12978  * If numa mode is not enabled and there is more than 1 vector allocated, then
12979  * the driver relies on the managed irq interface where the OS assigns vector to
12980  * cpu affinity.  The driver will then use that affinity mapping to setup its
12981  * cpu mapping table.
12982  *
12983  * Return codes
12984  * 0 - successful
12985  * other values - error
12986  **/
12987 static int
12988 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
12989 {
12990         int vectors, rc, index;
12991         char *name;
12992         const struct cpumask *aff_mask = NULL;
12993         unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
12994         struct lpfc_vector_map_info *cpup;
12995         struct lpfc_hba_eq_hdl *eqhdl;
12996         const struct cpumask *maskp;
12997         unsigned int flags = PCI_IRQ_MSIX;
12998
12999         /* Set up MSI-X multi-message vectors */
13000         vectors = phba->cfg_irq_chann;
13001
13002         if (phba->irq_chann_mode != NORMAL_MODE)
13003                 aff_mask = &phba->sli4_hba.irq_aff_mask;
13004
13005         if (aff_mask) {
13006                 cpu_cnt = cpumask_weight(aff_mask);
13007                 vectors = min(phba->cfg_irq_chann, cpu_cnt);
13008
13009                 /* cpu: iterates over aff_mask including offline or online
13010                  * cpu_select: iterates over online aff_mask to set affinity
13011                  */
13012                 cpu = cpumask_first(aff_mask);
13013                 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
13014         } else {
13015                 flags |= PCI_IRQ_AFFINITY;
13016         }
13017
13018         rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
13019         if (rc < 0) {
13020                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13021                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
13022                 goto vec_fail_out;
13023         }
13024         vectors = rc;
13025
13026         /* Assign MSI-X vectors to interrupt handlers */
13027         for (index = 0; index < vectors; index++) {
13028                 eqhdl = lpfc_get_eq_hdl(index);
13029                 name = eqhdl->handler_name;
13030                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
13031                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
13032                          LPFC_DRIVER_HANDLER_NAME"%d", index);
13033
13034                 eqhdl->idx = index;
13035                 rc = pci_irq_vector(phba->pcidev, index);
13036                 if (rc < 0) {
13037                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13038                                         "0489 MSI-X fast-path (%d) "
13039                                         "pci_irq_vec failed (%d)\n", index, rc);
13040                         goto cfg_fail_out;
13041                 }
13042                 eqhdl->irq = rc;
13043
13044                 rc = request_threaded_irq(eqhdl->irq,
13045                                           &lpfc_sli4_hba_intr_handler,
13046                                           &lpfc_sli4_hba_intr_handler_th,
13047                                           0, name, eqhdl);
13048                 if (rc) {
13049                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13050                                         "0486 MSI-X fast-path (%d) "
13051                                         "request_irq failed (%d)\n", index, rc);
13052                         goto cfg_fail_out;
13053                 }
13054
13055                 if (aff_mask) {
13056                         /* If found a neighboring online cpu, set affinity */
13057                         if (cpu_select < nr_cpu_ids)
13058                                 lpfc_irq_set_aff(eqhdl, cpu_select);
13059
13060                         /* Assign EQ to cpu_map */
13061                         lpfc_assign_eq_map_info(phba, index,
13062                                                 LPFC_CPU_FIRST_IRQ,
13063                                                 cpu);
13064
13065                         /* Iterate to next offline or online cpu in aff_mask */
13066                         cpu = cpumask_next(cpu, aff_mask);
13067
13068                         /* Find next online cpu in aff_mask to set affinity */
13069                         cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
13070                 } else if (vectors == 1) {
13071                         cpu = cpumask_first(cpu_present_mask);
13072                         lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
13073                                                 cpu);
13074                 } else {
13075                         maskp = pci_irq_get_affinity(phba->pcidev, index);
13076
13077                         /* Loop through all CPUs associated with vector index */
13078                         for_each_cpu_and(cpu, maskp, cpu_present_mask) {
13079                                 cpup = &phba->sli4_hba.cpu_map[cpu];
13080
13081                                 /* If this is the first CPU thats assigned to
13082                                  * this vector, set LPFC_CPU_FIRST_IRQ.
13083                                  *
13084                                  * With certain platforms its possible that irq
13085                                  * vectors are affinitized to all the cpu's.
13086                                  * This can result in each cpu_map.eq to be set
13087                                  * to the last vector, resulting in overwrite
13088                                  * of all the previous cpu_map.eq.  Ensure that
13089                                  * each vector receives a place in cpu_map.
13090                                  * Later call to lpfc_cpu_affinity_check will
13091                                  * ensure we are nicely balanced out.
13092                                  */
13093                                 if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
13094                                         continue;
13095                                 lpfc_assign_eq_map_info(phba, index,
13096                                                         LPFC_CPU_FIRST_IRQ,
13097                                                         cpu);
13098                                 break;
13099                         }
13100                 }
13101         }
13102
13103         if (vectors != phba->cfg_irq_chann) {
13104                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13105                                 "3238 Reducing IO channels to match number of "
13106                                 "MSI-X vectors, requested %d got %d\n",
13107                                 phba->cfg_irq_chann, vectors);
13108                 if (phba->cfg_irq_chann > vectors)
13109                         phba->cfg_irq_chann = vectors;
13110         }
13111
13112         return rc;
13113
13114 cfg_fail_out:
13115         /* free the irq already requested */
13116         for (--index; index >= 0; index--) {
13117                 eqhdl = lpfc_get_eq_hdl(index);
13118                 lpfc_irq_clear_aff(eqhdl);
13119                 free_irq(eqhdl->irq, eqhdl);
13120         }
13121
13122         /* Unconfigure MSI-X capability structure */
13123         pci_free_irq_vectors(phba->pcidev);
13124
13125 vec_fail_out:
13126         return rc;
13127 }
13128
13129 /**
13130  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
13131  * @phba: pointer to lpfc hba data structure.
13132  *
13133  * This routine is invoked to enable the MSI interrupt mode to device with
13134  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
13135  * called to enable the MSI vector. The device driver is responsible for
13136  * calling the request_irq() to register MSI vector with a interrupt the
13137  * handler, which is done in this function.
13138  *
13139  * Return codes
13140  *      0 - successful
13141  *      other values - error
13142  **/
13143 static int
13144 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
13145 {
13146         int rc, index;
13147         unsigned int cpu;
13148         struct lpfc_hba_eq_hdl *eqhdl;
13149
13150         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
13151                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
13152         if (rc > 0)
13153                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13154                                 "0487 PCI enable MSI mode success.\n");
13155         else {
13156                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13157                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
13158                 return rc ? rc : -1;
13159         }
13160
13161         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13162                          0, LPFC_DRIVER_NAME, phba);
13163         if (rc) {
13164                 pci_free_irq_vectors(phba->pcidev);
13165                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13166                                 "0490 MSI request_irq failed (%d)\n", rc);
13167                 return rc;
13168         }
13169
13170         eqhdl = lpfc_get_eq_hdl(0);
13171         rc = pci_irq_vector(phba->pcidev, 0);
13172         if (rc < 0) {
13173                 pci_free_irq_vectors(phba->pcidev);
13174                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13175                                 "0496 MSI pci_irq_vec failed (%d)\n", rc);
13176                 return rc;
13177         }
13178         eqhdl->irq = rc;
13179
13180         cpu = cpumask_first(cpu_present_mask);
13181         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
13182
13183         for (index = 0; index < phba->cfg_irq_chann; index++) {
13184                 eqhdl = lpfc_get_eq_hdl(index);
13185                 eqhdl->idx = index;
13186         }
13187
13188         return 0;
13189 }
13190
13191 /**
13192  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
13193  * @phba: pointer to lpfc hba data structure.
13194  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
13195  *
13196  * This routine is invoked to enable device interrupt and associate driver's
13197  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
13198  * interface spec. Depends on the interrupt mode configured to the driver,
13199  * the driver will try to fallback from the configured interrupt mode to an
13200  * interrupt mode which is supported by the platform, kernel, and device in
13201  * the order of:
13202  * MSI-X -> MSI -> IRQ.
13203  *
13204  * Return codes
13205  *      Interrupt mode (2, 1, 0) - successful
13206  *      LPFC_INTR_ERROR - error
13207  **/
13208 static uint32_t
13209 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
13210 {
13211         uint32_t intr_mode = LPFC_INTR_ERROR;
13212         int retval, idx;
13213
13214         if (cfg_mode == 2) {
13215                 /* Preparation before conf_msi mbox cmd */
13216                 retval = 0;
13217                 if (!retval) {
13218                         /* Now, try to enable MSI-X interrupt mode */
13219                         retval = lpfc_sli4_enable_msix(phba);
13220                         if (!retval) {
13221                                 /* Indicate initialization to MSI-X mode */
13222                                 phba->intr_type = MSIX;
13223                                 intr_mode = 2;
13224                         }
13225                 }
13226         }
13227
13228         /* Fallback to MSI if MSI-X initialization failed */
13229         if (cfg_mode >= 1 && phba->intr_type == NONE) {
13230                 retval = lpfc_sli4_enable_msi(phba);
13231                 if (!retval) {
13232                         /* Indicate initialization to MSI mode */
13233                         phba->intr_type = MSI;
13234                         intr_mode = 1;
13235                 }
13236         }
13237
13238         /* Fallback to INTx if both MSI-X/MSI initalization failed */
13239         if (phba->intr_type == NONE) {
13240                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13241                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
13242                 if (!retval) {
13243                         struct lpfc_hba_eq_hdl *eqhdl;
13244                         unsigned int cpu;
13245
13246                         /* Indicate initialization to INTx mode */
13247                         phba->intr_type = INTx;
13248                         intr_mode = 0;
13249
13250                         eqhdl = lpfc_get_eq_hdl(0);
13251                         retval = pci_irq_vector(phba->pcidev, 0);
13252                         if (retval < 0) {
13253                                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13254                                         "0502 INTR pci_irq_vec failed (%d)\n",
13255                                          retval);
13256                                 return LPFC_INTR_ERROR;
13257                         }
13258                         eqhdl->irq = retval;
13259
13260                         cpu = cpumask_first(cpu_present_mask);
13261                         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
13262                                                 cpu);
13263                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
13264                                 eqhdl = lpfc_get_eq_hdl(idx);
13265                                 eqhdl->idx = idx;
13266                         }
13267                 }
13268         }
13269         return intr_mode;
13270 }
13271
13272 /**
13273  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
13274  * @phba: pointer to lpfc hba data structure.
13275  *
13276  * This routine is invoked to disable device interrupt and disassociate
13277  * the driver's interrupt handler(s) from interrupt vector(s) to device
13278  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
13279  * will release the interrupt vector(s) for the message signaled interrupt.
13280  **/
13281 static void
13282 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
13283 {
13284         /* Disable the currently initialized interrupt mode */
13285         if (phba->intr_type == MSIX) {
13286                 int index;
13287                 struct lpfc_hba_eq_hdl *eqhdl;
13288
13289                 /* Free up MSI-X multi-message vectors */
13290                 for (index = 0; index < phba->cfg_irq_chann; index++) {
13291                         eqhdl = lpfc_get_eq_hdl(index);
13292                         lpfc_irq_clear_aff(eqhdl);
13293                         free_irq(eqhdl->irq, eqhdl);
13294                 }
13295         } else {
13296                 free_irq(phba->pcidev->irq, phba);
13297         }
13298
13299         pci_free_irq_vectors(phba->pcidev);
13300
13301         /* Reset interrupt management states */
13302         phba->intr_type = NONE;
13303         phba->sli.slistat.sli_intr = 0;
13304 }
13305
13306 /**
13307  * lpfc_unset_hba - Unset SLI3 hba device initialization
13308  * @phba: pointer to lpfc hba data structure.
13309  *
13310  * This routine is invoked to unset the HBA device initialization steps to
13311  * a device with SLI-3 interface spec.
13312  **/
13313 static void
13314 lpfc_unset_hba(struct lpfc_hba *phba)
13315 {
13316         set_bit(FC_UNLOADING, &phba->pport->load_flag);
13317
13318         kfree(phba->vpi_bmask);
13319         kfree(phba->vpi_ids);
13320
13321         lpfc_stop_hba_timers(phba);
13322
13323         phba->pport->work_port_events = 0;
13324
13325         lpfc_sli_hba_down(phba);
13326
13327         lpfc_sli_brdrestart(phba);
13328
13329         lpfc_sli_disable_intr(phba);
13330
13331         return;
13332 }
13333
13334 /**
13335  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
13336  * @phba: Pointer to HBA context object.
13337  *
13338  * This function is called in the SLI4 code path to wait for completion
13339  * of device's XRIs exchange busy. It will check the XRI exchange busy
13340  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
13341  * that, it will check the XRI exchange busy on outstanding FCP and ELS
13342  * I/Os every 30 seconds, log error message, and wait forever. Only when
13343  * all XRI exchange busy complete, the driver unload shall proceed with
13344  * invoking the function reset ioctl mailbox command to the CNA and the
13345  * the rest of the driver unload resource release.
13346  **/
13347 static void
13348 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
13349 {
13350         struct lpfc_sli4_hdw_queue *qp;
13351         int idx, ccnt;
13352         int wait_time = 0;
13353         int io_xri_cmpl = 1;
13354         int nvmet_xri_cmpl = 1;
13355         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13356
13357         /* Driver just aborted IOs during the hba_unset process.  Pause
13358          * here to give the HBA time to complete the IO and get entries
13359          * into the abts lists.
13360          */
13361         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
13362
13363         /* Wait for NVME pending IO to flush back to transport. */
13364         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13365                 lpfc_nvme_wait_for_io_drain(phba);
13366
13367         ccnt = 0;
13368         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13369                 qp = &phba->sli4_hba.hdwq[idx];
13370                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
13371                 if (!io_xri_cmpl) /* if list is NOT empty */
13372                         ccnt++;
13373         }
13374         if (ccnt)
13375                 io_xri_cmpl = 0;
13376
13377         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13378                 nvmet_xri_cmpl =
13379                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13380         }
13381
13382         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
13383                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
13384                         if (!nvmet_xri_cmpl)
13385                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13386                                                 "6424 NVMET XRI exchange busy "
13387                                                 "wait time: %d seconds.\n",
13388                                                 wait_time/1000);
13389                         if (!io_xri_cmpl)
13390                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13391                                                 "6100 IO XRI exchange busy "
13392                                                 "wait time: %d seconds.\n",
13393                                                 wait_time/1000);
13394                         if (!els_xri_cmpl)
13395                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13396                                                 "2878 ELS XRI exchange busy "
13397                                                 "wait time: %d seconds.\n",
13398                                                 wait_time/1000);
13399                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
13400                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
13401                 } else {
13402                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
13403                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
13404                 }
13405
13406                 ccnt = 0;
13407                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13408                         qp = &phba->sli4_hba.hdwq[idx];
13409                         io_xri_cmpl = list_empty(
13410                             &qp->lpfc_abts_io_buf_list);
13411                         if (!io_xri_cmpl) /* if list is NOT empty */
13412                                 ccnt++;
13413                 }
13414                 if (ccnt)
13415                         io_xri_cmpl = 0;
13416
13417                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13418                         nvmet_xri_cmpl = list_empty(
13419                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13420                 }
13421                 els_xri_cmpl =
13422                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13423
13424         }
13425 }
13426
13427 /**
13428  * lpfc_sli4_hba_unset - Unset the fcoe hba
13429  * @phba: Pointer to HBA context object.
13430  *
13431  * This function is called in the SLI4 code path to reset the HBA's FCoE
13432  * function. The caller is not required to hold any lock. This routine
13433  * issues PCI function reset mailbox command to reset the FCoE function.
13434  * At the end of the function, it calls lpfc_hba_down_post function to
13435  * free any pending commands.
13436  **/
13437 static void
13438 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
13439 {
13440         int wait_cnt = 0;
13441         LPFC_MBOXQ_t *mboxq;
13442         struct pci_dev *pdev = phba->pcidev;
13443
13444         lpfc_stop_hba_timers(phba);
13445         hrtimer_cancel(&phba->cmf_stats_timer);
13446         hrtimer_cancel(&phba->cmf_timer);
13447
13448         if (phba->pport)
13449                 phba->sli4_hba.intr_enable = 0;
13450
13451         /*
13452          * Gracefully wait out the potential current outstanding asynchronous
13453          * mailbox command.
13454          */
13455
13456         /* First, block any pending async mailbox command from posted */
13457         spin_lock_irq(&phba->hbalock);
13458         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
13459         spin_unlock_irq(&phba->hbalock);
13460         /* Now, trying to wait it out if we can */
13461         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13462                 msleep(10);
13463                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
13464                         break;
13465         }
13466         /* Forcefully release the outstanding mailbox command if timed out */
13467         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13468                 spin_lock_irq(&phba->hbalock);
13469                 mboxq = phba->sli.mbox_active;
13470                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
13471                 __lpfc_mbox_cmpl_put(phba, mboxq);
13472                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13473                 phba->sli.mbox_active = NULL;
13474                 spin_unlock_irq(&phba->hbalock);
13475         }
13476
13477         /* Abort all iocbs associated with the hba */
13478         lpfc_sli_hba_iocb_abort(phba);
13479
13480         if (!pci_channel_offline(phba->pcidev))
13481                 /* Wait for completion of device XRI exchange busy */
13482                 lpfc_sli4_xri_exchange_busy_wait(phba);
13483
13484         /* per-phba callback de-registration for hotplug event */
13485         if (phba->pport)
13486                 lpfc_cpuhp_remove(phba);
13487
13488         /* Disable PCI subsystem interrupt */
13489         lpfc_sli4_disable_intr(phba);
13490
13491         /* Disable SR-IOV if enabled */
13492         if (phba->cfg_sriov_nr_virtfn)
13493                 pci_disable_sriov(pdev);
13494
13495         /* Stop kthread signal shall trigger work_done one more time */
13496         kthread_stop(phba->worker_thread);
13497
13498         /* Disable FW logging to host memory */
13499         lpfc_ras_stop_fwlog(phba);
13500
13501         lpfc_sli4_queue_unset(phba);
13502
13503         /* Reset SLI4 HBA FCoE function */
13504         lpfc_pci_function_reset(phba);
13505
13506         /* release all queue allocated resources. */
13507         lpfc_sli4_queue_destroy(phba);
13508
13509         /* Free RAS DMA memory */
13510         if (phba->ras_fwlog.ras_enabled)
13511                 lpfc_sli4_ras_dma_free(phba);
13512
13513         /* Stop the SLI4 device port */
13514         if (phba->pport)
13515                 phba->pport->work_port_events = 0;
13516 }
13517
13518 static uint32_t
13519 lpfc_cgn_crc32(uint32_t crc, u8 byte)
13520 {
13521         uint32_t msb = 0;
13522         uint32_t bit;
13523
13524         for (bit = 0; bit < 8; bit++) {
13525                 msb = (crc >> 31) & 1;
13526                 crc <<= 1;
13527
13528                 if (msb ^ (byte & 1)) {
13529                         crc ^= LPFC_CGN_CRC32_MAGIC_NUMBER;
13530                         crc |= 1;
13531                 }
13532                 byte >>= 1;
13533         }
13534         return crc;
13535 }
13536
13537 static uint32_t
13538 lpfc_cgn_reverse_bits(uint32_t wd)
13539 {
13540         uint32_t result = 0;
13541         uint32_t i;
13542
13543         for (i = 0; i < 32; i++) {
13544                 result <<= 1;
13545                 result |= (1 & (wd >> i));
13546         }
13547         return result;
13548 }
13549
13550 /*
13551  * The routine corresponds with the algorithm the HBA firmware
13552  * uses to validate the data integrity.
13553  */
13554 uint32_t
13555 lpfc_cgn_calc_crc32(void *ptr, uint32_t byteLen, uint32_t crc)
13556 {
13557         uint32_t  i;
13558         uint32_t result;
13559         uint8_t  *data = (uint8_t *)ptr;
13560
13561         for (i = 0; i < byteLen; ++i)
13562                 crc = lpfc_cgn_crc32(crc, data[i]);
13563
13564         result = ~lpfc_cgn_reverse_bits(crc);
13565         return result;
13566 }
13567
13568 void
13569 lpfc_init_congestion_buf(struct lpfc_hba *phba)
13570 {
13571         struct lpfc_cgn_info *cp;
13572         uint16_t size;
13573         uint32_t crc;
13574
13575         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13576                         "6235 INIT Congestion Buffer %p\n", phba->cgn_i);
13577
13578         if (!phba->cgn_i)
13579                 return;
13580         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13581
13582         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
13583         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
13584         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
13585         atomic_set(&phba->cgn_sync_warn_cnt, 0);
13586
13587         atomic_set(&phba->cgn_driver_evt_cnt, 0);
13588         atomic_set(&phba->cgn_latency_evt_cnt, 0);
13589         atomic64_set(&phba->cgn_latency_evt, 0);
13590         phba->cgn_evt_minute = 0;
13591
13592         memset(cp, 0xff, offsetof(struct lpfc_cgn_info, cgn_stat));
13593         cp->cgn_info_size = cpu_to_le16(LPFC_CGN_INFO_SZ);
13594         cp->cgn_info_version = LPFC_CGN_INFO_V4;
13595
13596         /* cgn parameters */
13597         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
13598         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
13599         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
13600         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
13601
13602         lpfc_cgn_update_tstamp(phba, &cp->base_time);
13603
13604         /* Fill in default LUN qdepth */
13605         if (phba->pport) {
13606                 size = (uint16_t)(phba->pport->cfg_lun_queue_depth);
13607                 cp->cgn_lunq = cpu_to_le16(size);
13608         }
13609
13610         /* last used Index initialized to 0xff already */
13611
13612         cp->cgn_warn_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13613         cp->cgn_alarm_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13614         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13615         cp->cgn_info_crc = cpu_to_le32(crc);
13616
13617         phba->cgn_evt_timestamp = jiffies +
13618                 msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
13619 }
13620
13621 void
13622 lpfc_init_congestion_stat(struct lpfc_hba *phba)
13623 {
13624         struct lpfc_cgn_info *cp;
13625         uint32_t crc;
13626
13627         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13628                         "6236 INIT Congestion Stat %p\n", phba->cgn_i);
13629
13630         if (!phba->cgn_i)
13631                 return;
13632
13633         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13634         memset(&cp->cgn_stat, 0, sizeof(cp->cgn_stat));
13635
13636         lpfc_cgn_update_tstamp(phba, &cp->stat_start);
13637         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13638         cp->cgn_info_crc = cpu_to_le32(crc);
13639 }
13640
13641 /**
13642  * __lpfc_reg_congestion_buf - register congestion info buffer with HBA
13643  * @phba: Pointer to hba context object.
13644  * @reg: flag to determine register or unregister.
13645  */
13646 static int
13647 __lpfc_reg_congestion_buf(struct lpfc_hba *phba, int reg)
13648 {
13649         struct lpfc_mbx_reg_congestion_buf *reg_congestion_buf;
13650         union  lpfc_sli4_cfg_shdr *shdr;
13651         uint32_t shdr_status, shdr_add_status;
13652         LPFC_MBOXQ_t *mboxq;
13653         int length, rc;
13654
13655         if (!phba->cgn_i)
13656                 return -ENXIO;
13657
13658         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13659         if (!mboxq) {
13660                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13661                                 "2641 REG_CONGESTION_BUF mbox allocation fail: "
13662                                 "HBA state x%x reg %d\n",
13663                                 phba->pport->port_state, reg);
13664                 return -ENOMEM;
13665         }
13666
13667         length = (sizeof(struct lpfc_mbx_reg_congestion_buf) -
13668                 sizeof(struct lpfc_sli4_cfg_mhdr));
13669         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13670                          LPFC_MBOX_OPCODE_REG_CONGESTION_BUF, length,
13671                          LPFC_SLI4_MBX_EMBED);
13672         reg_congestion_buf = &mboxq->u.mqe.un.reg_congestion_buf;
13673         bf_set(lpfc_mbx_reg_cgn_buf_type, reg_congestion_buf, 1);
13674         if (reg > 0)
13675                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 1);
13676         else
13677                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 0);
13678         reg_congestion_buf->length = sizeof(struct lpfc_cgn_info);
13679         reg_congestion_buf->addr_lo =
13680                 putPaddrLow(phba->cgn_i->phys);
13681         reg_congestion_buf->addr_hi =
13682                 putPaddrHigh(phba->cgn_i->phys);
13683
13684         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13685         shdr = (union lpfc_sli4_cfg_shdr *)
13686                 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
13687         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13688         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13689                                  &shdr->response);
13690         mempool_free(mboxq, phba->mbox_mem_pool);
13691         if (shdr_status || shdr_add_status || rc) {
13692                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13693                                 "2642 REG_CONGESTION_BUF mailbox "
13694                                 "failed with status x%x add_status x%x,"
13695                                 " mbx status x%x reg %d\n",
13696                                 shdr_status, shdr_add_status, rc, reg);
13697                 return -ENXIO;
13698         }
13699         return 0;
13700 }
13701
13702 int
13703 lpfc_unreg_congestion_buf(struct lpfc_hba *phba)
13704 {
13705         lpfc_cmf_stop(phba);
13706         return __lpfc_reg_congestion_buf(phba, 0);
13707 }
13708
13709 int
13710 lpfc_reg_congestion_buf(struct lpfc_hba *phba)
13711 {
13712         return __lpfc_reg_congestion_buf(phba, 1);
13713 }
13714
13715 /**
13716  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
13717  * @phba: Pointer to HBA context object.
13718  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
13719  *
13720  * This function is called in the SLI4 code path to read the port's
13721  * sli4 capabilities.
13722  *
13723  * This function may be be called from any context that can block-wait
13724  * for the completion.  The expectation is that this routine is called
13725  * typically from probe_one or from the online routine.
13726  **/
13727 int
13728 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
13729 {
13730         int rc;
13731         struct lpfc_mqe *mqe = &mboxq->u.mqe;
13732         struct lpfc_pc_sli4_params *sli4_params;
13733         uint32_t mbox_tmo;
13734         int length;
13735         bool exp_wqcq_pages = true;
13736         struct lpfc_sli4_parameters *mbx_sli4_parameters;
13737
13738         /*
13739          * By default, the driver assumes the SLI4 port requires RPI
13740          * header postings.  The SLI4_PARAM response will correct this
13741          * assumption.
13742          */
13743         phba->sli4_hba.rpi_hdrs_in_use = 1;
13744
13745         /* Read the port's SLI4 Config Parameters */
13746         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
13747                   sizeof(struct lpfc_sli4_cfg_mhdr));
13748         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13749                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
13750                          length, LPFC_SLI4_MBX_EMBED);
13751         if (!phba->sli4_hba.intr_enable)
13752                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13753         else {
13754                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
13755                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
13756         }
13757         if (unlikely(rc))
13758                 return rc;
13759         sli4_params = &phba->sli4_hba.pc_sli4_params;
13760         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
13761         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
13762         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
13763         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
13764         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
13765                                              mbx_sli4_parameters);
13766         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
13767                                              mbx_sli4_parameters);
13768         if (bf_get(cfg_phwq, mbx_sli4_parameters))
13769                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
13770         else
13771                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
13772         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
13773         sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
13774                                            mbx_sli4_parameters);
13775         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
13776         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
13777         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
13778         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
13779         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
13780         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
13781         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
13782         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
13783         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
13784         sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
13785         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
13786                                             mbx_sli4_parameters);
13787         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
13788         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
13789                                            mbx_sli4_parameters);
13790         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
13791         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
13792         sli4_params->mi_cap = bf_get(cfg_mi_ver, mbx_sli4_parameters);
13793
13794         /* Check for Extended Pre-Registered SGL support */
13795         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
13796
13797         /* Check for firmware nvme support */
13798         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
13799                      bf_get(cfg_xib, mbx_sli4_parameters));
13800
13801         if (rc) {
13802                 /* Save this to indicate the Firmware supports NVME */
13803                 sli4_params->nvme = 1;
13804
13805                 /* Firmware NVME support, check driver FC4 NVME support */
13806                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
13807                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13808                                         "6133 Disabling NVME support: "
13809                                         "FC4 type not supported: x%x\n",
13810                                         phba->cfg_enable_fc4_type);
13811                         goto fcponly;
13812                 }
13813         } else {
13814                 /* No firmware NVME support, check driver FC4 NVME support */
13815                 sli4_params->nvme = 0;
13816                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13817                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
13818                                         "6101 Disabling NVME support: Not "
13819                                         "supported by firmware (%d %d) x%x\n",
13820                                         bf_get(cfg_nvme, mbx_sli4_parameters),
13821                                         bf_get(cfg_xib, mbx_sli4_parameters),
13822                                         phba->cfg_enable_fc4_type);
13823 fcponly:
13824                         phba->nvmet_support = 0;
13825                         phba->cfg_nvmet_mrq = 0;
13826                         phba->cfg_nvme_seg_cnt = 0;
13827
13828                         /* If no FC4 type support, move to just SCSI support */
13829                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
13830                                 return -ENODEV;
13831                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
13832                 }
13833         }
13834
13835         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
13836          * accommodate 512K and 1M IOs in a single nvme buf.
13837          */
13838         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13839                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
13840
13841         /* Enable embedded Payload BDE if support is indicated */
13842         if (bf_get(cfg_pbde, mbx_sli4_parameters))
13843                 phba->cfg_enable_pbde = 1;
13844         else
13845                 phba->cfg_enable_pbde = 0;
13846
13847         /*
13848          * To support Suppress Response feature we must satisfy 3 conditions.
13849          * lpfc_suppress_rsp module parameter must be set (default).
13850          * In SLI4-Parameters Descriptor:
13851          * Extended Inline Buffers (XIB) must be supported.
13852          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
13853          * (double negative).
13854          */
13855         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
13856             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
13857                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
13858         else
13859                 phba->cfg_suppress_rsp = 0;
13860
13861         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
13862                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
13863
13864         /* Make sure that sge_supp_len can be handled by the driver */
13865         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
13866                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
13867
13868         dma_set_max_seg_size(&phba->pcidev->dev, sli4_params->sge_supp_len);
13869
13870         /*
13871          * Check whether the adapter supports an embedded copy of the
13872          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
13873          * to use this option, 128-byte WQEs must be used.
13874          */
13875         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
13876                 phba->fcp_embed_io = 1;
13877         else
13878                 phba->fcp_embed_io = 0;
13879
13880         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13881                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
13882                         bf_get(cfg_xib, mbx_sli4_parameters),
13883                         phba->cfg_enable_pbde,
13884                         phba->fcp_embed_io, sli4_params->nvme,
13885                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
13886
13887         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
13888             LPFC_SLI_INTF_IF_TYPE_2) &&
13889             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
13890                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
13891                 exp_wqcq_pages = false;
13892
13893         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
13894             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
13895             exp_wqcq_pages &&
13896             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
13897                 phba->enab_exp_wqcq_pages = 1;
13898         else
13899                 phba->enab_exp_wqcq_pages = 0;
13900         /*
13901          * Check if the SLI port supports MDS Diagnostics
13902          */
13903         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
13904                 phba->mds_diags_support = 1;
13905         else
13906                 phba->mds_diags_support = 0;
13907
13908         /*
13909          * Check if the SLI port supports NSLER
13910          */
13911         if (bf_get(cfg_nsler, mbx_sli4_parameters))
13912                 phba->nsler = 1;
13913         else
13914                 phba->nsler = 0;
13915
13916         return 0;
13917 }
13918
13919 /**
13920  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
13921  * @pdev: pointer to PCI device
13922  * @pid: pointer to PCI device identifier
13923  *
13924  * This routine is to be called to attach a device with SLI-3 interface spec
13925  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13926  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13927  * information of the device and driver to see if the driver state that it can
13928  * support this kind of device. If the match is successful, the driver core
13929  * invokes this routine. If this routine determines it can claim the HBA, it
13930  * does all the initialization that it needs to do to handle the HBA properly.
13931  *
13932  * Return code
13933  *      0 - driver can claim the device
13934  *      negative value - driver can not claim the device
13935  **/
13936 static int
13937 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
13938 {
13939         struct lpfc_hba   *phba;
13940         struct lpfc_vport *vport = NULL;
13941         struct Scsi_Host  *shost = NULL;
13942         int error;
13943         uint32_t cfg_mode, intr_mode;
13944
13945         /* Allocate memory for HBA structure */
13946         phba = lpfc_hba_alloc(pdev);
13947         if (!phba)
13948                 return -ENOMEM;
13949
13950         /* Perform generic PCI device enabling operation */
13951         error = lpfc_enable_pci_dev(phba);
13952         if (error)
13953                 goto out_free_phba;
13954
13955         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
13956         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
13957         if (error)
13958                 goto out_disable_pci_dev;
13959
13960         /* Set up SLI-3 specific device PCI memory space */
13961         error = lpfc_sli_pci_mem_setup(phba);
13962         if (error) {
13963                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13964                                 "1402 Failed to set up pci memory space.\n");
13965                 goto out_disable_pci_dev;
13966         }
13967
13968         /* Set up SLI-3 specific device driver resources */
13969         error = lpfc_sli_driver_resource_setup(phba);
13970         if (error) {
13971                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13972                                 "1404 Failed to set up driver resource.\n");
13973                 goto out_unset_pci_mem_s3;
13974         }
13975
13976         /* Initialize and populate the iocb list per host */
13977
13978         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
13979         if (error) {
13980                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13981                                 "1405 Failed to initialize iocb list.\n");
13982                 goto out_unset_driver_resource_s3;
13983         }
13984
13985         /* Set up common device driver resources */
13986         error = lpfc_setup_driver_resource_phase2(phba);
13987         if (error) {
13988                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13989                                 "1406 Failed to set up driver resource.\n");
13990                 goto out_free_iocb_list;
13991         }
13992
13993         /* Get the default values for Model Name and Description */
13994         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13995
13996         /* Create SCSI host to the physical port */
13997         error = lpfc_create_shost(phba);
13998         if (error) {
13999                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14000                                 "1407 Failed to create scsi host.\n");
14001                 goto out_unset_driver_resource;
14002         }
14003
14004         /* Configure sysfs attributes */
14005         vport = phba->pport;
14006         error = lpfc_alloc_sysfs_attr(vport);
14007         if (error) {
14008                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14009                                 "1476 Failed to allocate sysfs attr\n");
14010                 goto out_destroy_shost;
14011         }
14012
14013         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14014         /* Now, trying to enable interrupt and bring up the device */
14015         cfg_mode = phba->cfg_use_msi;
14016         while (true) {
14017                 /* Put device to a known state before enabling interrupt */
14018                 lpfc_stop_port(phba);
14019                 /* Configure and enable interrupt */
14020                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
14021                 if (intr_mode == LPFC_INTR_ERROR) {
14022                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14023                                         "0431 Failed to enable interrupt.\n");
14024                         error = -ENODEV;
14025                         goto out_free_sysfs_attr;
14026                 }
14027                 /* SLI-3 HBA setup */
14028                 if (lpfc_sli_hba_setup(phba)) {
14029                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14030                                         "1477 Failed to set up hba\n");
14031                         error = -ENODEV;
14032                         goto out_remove_device;
14033                 }
14034
14035                 /* Wait 50ms for the interrupts of previous mailbox commands */
14036                 msleep(50);
14037                 /* Check active interrupts on message signaled interrupts */
14038                 if (intr_mode == 0 ||
14039                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
14040                         /* Log the current active interrupt mode */
14041                         phba->intr_mode = intr_mode;
14042                         lpfc_log_intr_mode(phba, intr_mode);
14043                         break;
14044                 } else {
14045                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14046                                         "0447 Configure interrupt mode (%d) "
14047                                         "failed active interrupt test.\n",
14048                                         intr_mode);
14049                         /* Disable the current interrupt mode */
14050                         lpfc_sli_disable_intr(phba);
14051                         /* Try next level of interrupt mode */
14052                         cfg_mode = --intr_mode;
14053                 }
14054         }
14055
14056         /* Perform post initialization setup */
14057         lpfc_post_init_setup(phba);
14058
14059         /* Check if there are static vports to be created. */
14060         lpfc_create_static_vport(phba);
14061
14062         return 0;
14063
14064 out_remove_device:
14065         lpfc_unset_hba(phba);
14066 out_free_sysfs_attr:
14067         lpfc_free_sysfs_attr(vport);
14068 out_destroy_shost:
14069         lpfc_destroy_shost(phba);
14070 out_unset_driver_resource:
14071         lpfc_unset_driver_resource_phase2(phba);
14072 out_free_iocb_list:
14073         lpfc_free_iocb_list(phba);
14074 out_unset_driver_resource_s3:
14075         lpfc_sli_driver_resource_unset(phba);
14076 out_unset_pci_mem_s3:
14077         lpfc_sli_pci_mem_unset(phba);
14078 out_disable_pci_dev:
14079         lpfc_disable_pci_dev(phba);
14080         if (shost)
14081                 scsi_host_put(shost);
14082 out_free_phba:
14083         lpfc_hba_free(phba);
14084         return error;
14085 }
14086
14087 /**
14088  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
14089  * @pdev: pointer to PCI device
14090  *
14091  * This routine is to be called to disattach a device with SLI-3 interface
14092  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
14093  * removed from PCI bus, it performs all the necessary cleanup for the HBA
14094  * device to be removed from the PCI subsystem properly.
14095  **/
14096 static void
14097 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
14098 {
14099         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
14100         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14101         struct lpfc_vport **vports;
14102         struct lpfc_hba   *phba = vport->phba;
14103         int i;
14104
14105         set_bit(FC_UNLOADING, &vport->load_flag);
14106
14107         lpfc_free_sysfs_attr(vport);
14108
14109         /* Release all the vports against this physical port */
14110         vports = lpfc_create_vport_work_array(phba);
14111         if (vports != NULL)
14112                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14113                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14114                                 continue;
14115                         fc_vport_terminate(vports[i]->fc_vport);
14116                 }
14117         lpfc_destroy_vport_work_array(phba, vports);
14118
14119         /* Remove FC host with the physical port */
14120         fc_remove_host(shost);
14121         scsi_remove_host(shost);
14122
14123         /* Clean up all nodes, mailboxes and IOs. */
14124         lpfc_cleanup(vport);
14125
14126         /*
14127          * Bring down the SLI Layer. This step disable all interrupts,
14128          * clears the rings, discards all mailbox commands, and resets
14129          * the HBA.
14130          */
14131
14132         /* HBA interrupt will be disabled after this call */
14133         lpfc_sli_hba_down(phba);
14134         /* Stop kthread signal shall trigger work_done one more time */
14135         kthread_stop(phba->worker_thread);
14136         /* Final cleanup of txcmplq and reset the HBA */
14137         lpfc_sli_brdrestart(phba);
14138
14139         kfree(phba->vpi_bmask);
14140         kfree(phba->vpi_ids);
14141
14142         lpfc_stop_hba_timers(phba);
14143         spin_lock_irq(&phba->port_list_lock);
14144         list_del_init(&vport->listentry);
14145         spin_unlock_irq(&phba->port_list_lock);
14146
14147         lpfc_debugfs_terminate(vport);
14148
14149         /* Disable SR-IOV if enabled */
14150         if (phba->cfg_sriov_nr_virtfn)
14151                 pci_disable_sriov(pdev);
14152
14153         /* Disable interrupt */
14154         lpfc_sli_disable_intr(phba);
14155
14156         scsi_host_put(shost);
14157
14158         /*
14159          * Call scsi_free before mem_free since scsi bufs are released to their
14160          * corresponding pools here.
14161          */
14162         lpfc_scsi_free(phba);
14163         lpfc_free_iocb_list(phba);
14164
14165         lpfc_mem_free_all(phba);
14166
14167         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
14168                           phba->hbqslimp.virt, phba->hbqslimp.phys);
14169
14170         /* Free resources associated with SLI2 interface */
14171         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
14172                           phba->slim2p.virt, phba->slim2p.phys);
14173
14174         /* unmap adapter SLIM and Control Registers */
14175         iounmap(phba->ctrl_regs_memmap_p);
14176         iounmap(phba->slim_memmap_p);
14177
14178         lpfc_hba_free(phba);
14179
14180         pci_release_mem_regions(pdev);
14181         pci_disable_device(pdev);
14182 }
14183
14184 /**
14185  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
14186  * @dev_d: pointer to device
14187  *
14188  * This routine is to be called from the kernel's PCI subsystem to support
14189  * system Power Management (PM) to device with SLI-3 interface spec. When
14190  * PM invokes this method, it quiesces the device by stopping the driver's
14191  * worker thread for the device, turning off device's interrupt and DMA,
14192  * and bring the device offline. Note that as the driver implements the
14193  * minimum PM requirements to a power-aware driver's PM support for the
14194  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14195  * to the suspend() method call will be treated as SUSPEND and the driver will
14196  * fully reinitialize its device during resume() method call, the driver will
14197  * set device to PCI_D3hot state in PCI config space instead of setting it
14198  * according to the @msg provided by the PM.
14199  *
14200  * Return code
14201  *      0 - driver suspended the device
14202  *      Error otherwise
14203  **/
14204 static int __maybe_unused
14205 lpfc_pci_suspend_one_s3(struct device *dev_d)
14206 {
14207         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14208         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14209
14210         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14211                         "0473 PCI device Power Management suspend.\n");
14212
14213         /* Bring down the device */
14214         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14215         lpfc_offline(phba);
14216         kthread_stop(phba->worker_thread);
14217
14218         /* Disable interrupt from device */
14219         lpfc_sli_disable_intr(phba);
14220
14221         return 0;
14222 }
14223
14224 /**
14225  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
14226  * @dev_d: pointer to device
14227  *
14228  * This routine is to be called from the kernel's PCI subsystem to support
14229  * system Power Management (PM) to device with SLI-3 interface spec. When PM
14230  * invokes this method, it restores the device's PCI config space state and
14231  * fully reinitializes the device and brings it online. Note that as the
14232  * driver implements the minimum PM requirements to a power-aware driver's
14233  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
14234  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
14235  * driver will fully reinitialize its device during resume() method call,
14236  * the device will be set to PCI_D0 directly in PCI config space before
14237  * restoring the state.
14238  *
14239  * Return code
14240  *      0 - driver suspended the device
14241  *      Error otherwise
14242  **/
14243 static int __maybe_unused
14244 lpfc_pci_resume_one_s3(struct device *dev_d)
14245 {
14246         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14247         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14248         uint32_t intr_mode;
14249         int error;
14250
14251         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14252                         "0452 PCI device Power Management resume.\n");
14253
14254         /* Startup the kernel thread for this host adapter. */
14255         phba->worker_thread = kthread_run(lpfc_do_work, phba,
14256                                         "lpfc_worker_%d", phba->brd_no);
14257         if (IS_ERR(phba->worker_thread)) {
14258                 error = PTR_ERR(phba->worker_thread);
14259                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14260                                 "0434 PM resume failed to start worker "
14261                                 "thread: error=x%x.\n", error);
14262                 return error;
14263         }
14264
14265         /* Init cpu_map array */
14266         lpfc_cpu_map_array_init(phba);
14267         /* Init hba_eq_hdl array */
14268         lpfc_hba_eq_hdl_array_init(phba);
14269         /* Configure and enable interrupt */
14270         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14271         if (intr_mode == LPFC_INTR_ERROR) {
14272                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14273                                 "0430 PM resume Failed to enable interrupt\n");
14274                 return -EIO;
14275         } else
14276                 phba->intr_mode = intr_mode;
14277
14278         /* Restart HBA and bring it online */
14279         lpfc_sli_brdrestart(phba);
14280         lpfc_online(phba);
14281
14282         /* Log the current active interrupt mode */
14283         lpfc_log_intr_mode(phba, phba->intr_mode);
14284
14285         return 0;
14286 }
14287
14288 /**
14289  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
14290  * @phba: pointer to lpfc hba data structure.
14291  *
14292  * This routine is called to prepare the SLI3 device for PCI slot recover. It
14293  * aborts all the outstanding SCSI I/Os to the pci device.
14294  **/
14295 static void
14296 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
14297 {
14298         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14299                         "2723 PCI channel I/O abort preparing for recovery\n");
14300
14301         /*
14302          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
14303          * and let the SCSI mid-layer to retry them to recover.
14304          */
14305         lpfc_sli_abort_fcp_rings(phba);
14306 }
14307
14308 /**
14309  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
14310  * @phba: pointer to lpfc hba data structure.
14311  *
14312  * This routine is called to prepare the SLI3 device for PCI slot reset. It
14313  * disables the device interrupt and pci device, and aborts the internal FCP
14314  * pending I/Os.
14315  **/
14316 static void
14317 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
14318 {
14319         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14320                         "2710 PCI channel disable preparing for reset\n");
14321
14322         /* Block any management I/Os to the device */
14323         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
14324
14325         /* Block all SCSI devices' I/Os on the host */
14326         lpfc_scsi_dev_block(phba);
14327
14328         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
14329         lpfc_sli_flush_io_rings(phba);
14330
14331         /* stop all timers */
14332         lpfc_stop_hba_timers(phba);
14333
14334         /* Disable interrupt and pci device */
14335         lpfc_sli_disable_intr(phba);
14336         pci_disable_device(phba->pcidev);
14337 }
14338
14339 /**
14340  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
14341  * @phba: pointer to lpfc hba data structure.
14342  *
14343  * This routine is called to prepare the SLI3 device for PCI slot permanently
14344  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
14345  * pending I/Os.
14346  **/
14347 static void
14348 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
14349 {
14350         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14351                         "2711 PCI channel permanent disable for failure\n");
14352         /* Block all SCSI devices' I/Os on the host */
14353         lpfc_scsi_dev_block(phba);
14354         lpfc_sli4_prep_dev_for_reset(phba);
14355
14356         /* stop all timers */
14357         lpfc_stop_hba_timers(phba);
14358
14359         /* Clean up all driver's outstanding SCSI I/Os */
14360         lpfc_sli_flush_io_rings(phba);
14361 }
14362
14363 /**
14364  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
14365  * @pdev: pointer to PCI device.
14366  * @state: the current PCI connection state.
14367  *
14368  * This routine is called from the PCI subsystem for I/O error handling to
14369  * device with SLI-3 interface spec. This function is called by the PCI
14370  * subsystem after a PCI bus error affecting this device has been detected.
14371  * When this function is invoked, it will need to stop all the I/Os and
14372  * interrupt(s) to the device. Once that is done, it will return
14373  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
14374  * as desired.
14375  *
14376  * Return codes
14377  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
14378  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
14379  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14380  **/
14381 static pci_ers_result_t
14382 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
14383 {
14384         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14385         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14386
14387         switch (state) {
14388         case pci_channel_io_normal:
14389                 /* Non-fatal error, prepare for recovery */
14390                 lpfc_sli_prep_dev_for_recover(phba);
14391                 return PCI_ERS_RESULT_CAN_RECOVER;
14392         case pci_channel_io_frozen:
14393                 /* Fatal error, prepare for slot reset */
14394                 lpfc_sli_prep_dev_for_reset(phba);
14395                 return PCI_ERS_RESULT_NEED_RESET;
14396         case pci_channel_io_perm_failure:
14397                 /* Permanent failure, prepare for device down */
14398                 lpfc_sli_prep_dev_for_perm_failure(phba);
14399                 return PCI_ERS_RESULT_DISCONNECT;
14400         default:
14401                 /* Unknown state, prepare and request slot reset */
14402                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14403                                 "0472 Unknown PCI error state: x%x\n", state);
14404                 lpfc_sli_prep_dev_for_reset(phba);
14405                 return PCI_ERS_RESULT_NEED_RESET;
14406         }
14407 }
14408
14409 /**
14410  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
14411  * @pdev: pointer to PCI device.
14412  *
14413  * This routine is called from the PCI subsystem for error handling to
14414  * device with SLI-3 interface spec. This is called after PCI bus has been
14415  * reset to restart the PCI card from scratch, as if from a cold-boot.
14416  * During the PCI subsystem error recovery, after driver returns
14417  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
14418  * recovery and then call this routine before calling the .resume method
14419  * to recover the device. This function will initialize the HBA device,
14420  * enable the interrupt, but it will just put the HBA to offline state
14421  * without passing any I/O traffic.
14422  *
14423  * Return codes
14424  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
14425  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14426  */
14427 static pci_ers_result_t
14428 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
14429 {
14430         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14431         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14432         struct lpfc_sli *psli = &phba->sli;
14433         uint32_t intr_mode;
14434
14435         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
14436         if (pci_enable_device_mem(pdev)) {
14437                 printk(KERN_ERR "lpfc: Cannot re-enable "
14438                         "PCI device after reset.\n");
14439                 return PCI_ERS_RESULT_DISCONNECT;
14440         }
14441
14442         pci_restore_state(pdev);
14443
14444         /*
14445          * As the new kernel behavior of pci_restore_state() API call clears
14446          * device saved_state flag, need to save the restored state again.
14447          */
14448         pci_save_state(pdev);
14449
14450         if (pdev->is_busmaster)
14451                 pci_set_master(pdev);
14452
14453         spin_lock_irq(&phba->hbalock);
14454         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
14455         spin_unlock_irq(&phba->hbalock);
14456
14457         /* Configure and enable interrupt */
14458         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14459         if (intr_mode == LPFC_INTR_ERROR) {
14460                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14461                                 "0427 Cannot re-enable interrupt after "
14462                                 "slot reset.\n");
14463                 return PCI_ERS_RESULT_DISCONNECT;
14464         } else
14465                 phba->intr_mode = intr_mode;
14466
14467         /* Take device offline, it will perform cleanup */
14468         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14469         lpfc_offline(phba);
14470         lpfc_sli_brdrestart(phba);
14471
14472         /* Log the current active interrupt mode */
14473         lpfc_log_intr_mode(phba, phba->intr_mode);
14474
14475         return PCI_ERS_RESULT_RECOVERED;
14476 }
14477
14478 /**
14479  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
14480  * @pdev: pointer to PCI device
14481  *
14482  * This routine is called from the PCI subsystem for error handling to device
14483  * with SLI-3 interface spec. It is called when kernel error recovery tells
14484  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
14485  * error recovery. After this call, traffic can start to flow from this device
14486  * again.
14487  */
14488 static void
14489 lpfc_io_resume_s3(struct pci_dev *pdev)
14490 {
14491         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14492         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14493
14494         /* Bring device online, it will be no-op for non-fatal error resume */
14495         lpfc_online(phba);
14496 }
14497
14498 /**
14499  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
14500  * @phba: pointer to lpfc hba data structure.
14501  *
14502  * returns the number of ELS/CT IOCBs to reserve
14503  **/
14504 int
14505 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
14506 {
14507         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
14508
14509         if (phba->sli_rev == LPFC_SLI_REV4) {
14510                 if (max_xri <= 100)
14511                         return 10;
14512                 else if (max_xri <= 256)
14513                         return 25;
14514                 else if (max_xri <= 512)
14515                         return 50;
14516                 else if (max_xri <= 1024)
14517                         return 100;
14518                 else if (max_xri <= 1536)
14519                         return 150;
14520                 else if (max_xri <= 2048)
14521                         return 200;
14522                 else
14523                         return 250;
14524         } else
14525                 return 0;
14526 }
14527
14528 /**
14529  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
14530  * @phba: pointer to lpfc hba data structure.
14531  *
14532  * returns the number of ELS/CT + NVMET IOCBs to reserve
14533  **/
14534 int
14535 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
14536 {
14537         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
14538
14539         if (phba->nvmet_support)
14540                 max_xri += LPFC_NVMET_BUF_POST;
14541         return max_xri;
14542 }
14543
14544
14545 static int
14546 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
14547         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
14548         const struct firmware *fw)
14549 {
14550         int rc;
14551         u8 sli_family;
14552
14553         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
14554         /* Three cases:  (1) FW was not supported on the detected adapter.
14555          * (2) FW update has been locked out administratively.
14556          * (3) Some other error during FW update.
14557          * In each case, an unmaskable message is written to the console
14558          * for admin diagnosis.
14559          */
14560         if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
14561             (sli_family == LPFC_SLI_INTF_FAMILY_G6 &&
14562              magic_number != MAGIC_NUMBER_G6) ||
14563             (sli_family == LPFC_SLI_INTF_FAMILY_G7 &&
14564              magic_number != MAGIC_NUMBER_G7) ||
14565             (sli_family == LPFC_SLI_INTF_FAMILY_G7P &&
14566              magic_number != MAGIC_NUMBER_G7P)) {
14567                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14568                                 "3030 This firmware version is not supported on"
14569                                 " this HBA model. Device:%x Magic:%x Type:%x "
14570                                 "ID:%x Size %d %zd\n",
14571                                 phba->pcidev->device, magic_number, ftype, fid,
14572                                 fsize, fw->size);
14573                 rc = -EINVAL;
14574         } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
14575                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14576                                 "3021 Firmware downloads have been prohibited "
14577                                 "by a system configuration setting on "
14578                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14579                                 "%zd\n",
14580                                 phba->pcidev->device, magic_number, ftype, fid,
14581                                 fsize, fw->size);
14582                 rc = -EACCES;
14583         } else {
14584                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14585                                 "3022 FW Download failed. Add Status x%x "
14586                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14587                                 "%zd\n",
14588                                 offset, phba->pcidev->device, magic_number,
14589                                 ftype, fid, fsize, fw->size);
14590                 rc = -EIO;
14591         }
14592         return rc;
14593 }
14594
14595 /**
14596  * lpfc_write_firmware - attempt to write a firmware image to the port
14597  * @fw: pointer to firmware image returned from request_firmware.
14598  * @context: pointer to firmware image returned from request_firmware.
14599  *
14600  **/
14601 static void
14602 lpfc_write_firmware(const struct firmware *fw, void *context)
14603 {
14604         struct lpfc_hba *phba = (struct lpfc_hba *)context;
14605         char fwrev[FW_REV_STR_SIZE];
14606         struct lpfc_grp_hdr *image;
14607         struct list_head dma_buffer_list;
14608         int i, rc = 0;
14609         struct lpfc_dmabuf *dmabuf, *next;
14610         uint32_t offset = 0, temp_offset = 0;
14611         uint32_t magic_number, ftype, fid, fsize;
14612
14613         /* It can be null in no-wait mode, sanity check */
14614         if (!fw) {
14615                 rc = -ENXIO;
14616                 goto out;
14617         }
14618         image = (struct lpfc_grp_hdr *)fw->data;
14619
14620         magic_number = be32_to_cpu(image->magic_number);
14621         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
14622         fid = bf_get_be32(lpfc_grp_hdr_id, image);
14623         fsize = be32_to_cpu(image->size);
14624
14625         INIT_LIST_HEAD(&dma_buffer_list);
14626         lpfc_decode_firmware_rev(phba, fwrev, 1);
14627         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
14628                 lpfc_log_msg(phba, KERN_NOTICE, LOG_INIT | LOG_SLI,
14629                              "3023 Updating Firmware, Current Version:%s "
14630                              "New Version:%s\n",
14631                              fwrev, image->revision);
14632                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
14633                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
14634                                          GFP_KERNEL);
14635                         if (!dmabuf) {
14636                                 rc = -ENOMEM;
14637                                 goto release_out;
14638                         }
14639                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
14640                                                           SLI4_PAGE_SIZE,
14641                                                           &dmabuf->phys,
14642                                                           GFP_KERNEL);
14643                         if (!dmabuf->virt) {
14644                                 kfree(dmabuf);
14645                                 rc = -ENOMEM;
14646                                 goto release_out;
14647                         }
14648                         list_add_tail(&dmabuf->list, &dma_buffer_list);
14649                 }
14650                 while (offset < fw->size) {
14651                         temp_offset = offset;
14652                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
14653                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
14654                                         memcpy(dmabuf->virt,
14655                                                fw->data + temp_offset,
14656                                                fw->size - temp_offset);
14657                                         temp_offset = fw->size;
14658                                         break;
14659                                 }
14660                                 memcpy(dmabuf->virt, fw->data + temp_offset,
14661                                        SLI4_PAGE_SIZE);
14662                                 temp_offset += SLI4_PAGE_SIZE;
14663                         }
14664                         rc = lpfc_wr_object(phba, &dma_buffer_list,
14665                                     (fw->size - offset), &offset);
14666                         if (rc) {
14667                                 rc = lpfc_log_write_firmware_error(phba, offset,
14668                                                                    magic_number,
14669                                                                    ftype,
14670                                                                    fid,
14671                                                                    fsize,
14672                                                                    fw);
14673                                 goto release_out;
14674                         }
14675                 }
14676                 rc = offset;
14677         } else
14678                 lpfc_log_msg(phba, KERN_NOTICE, LOG_INIT | LOG_SLI,
14679                              "3029 Skipped Firmware update, Current "
14680                              "Version:%s New Version:%s\n",
14681                              fwrev, image->revision);
14682
14683 release_out:
14684         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
14685                 list_del(&dmabuf->list);
14686                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
14687                                   dmabuf->virt, dmabuf->phys);
14688                 kfree(dmabuf);
14689         }
14690         release_firmware(fw);
14691 out:
14692         if (rc < 0)
14693                 lpfc_log_msg(phba, KERN_ERR, LOG_INIT | LOG_SLI,
14694                              "3062 Firmware update error, status %d.\n", rc);
14695         else
14696                 lpfc_log_msg(phba, KERN_NOTICE, LOG_INIT | LOG_SLI,
14697                              "3024 Firmware update success: size %d.\n", rc);
14698 }
14699
14700 /**
14701  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
14702  * @phba: pointer to lpfc hba data structure.
14703  * @fw_upgrade: which firmware to update.
14704  *
14705  * This routine is called to perform Linux generic firmware upgrade on device
14706  * that supports such feature.
14707  **/
14708 int
14709 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
14710 {
14711         char file_name[ELX_FW_NAME_SIZE] = {0};
14712         int ret;
14713         const struct firmware *fw;
14714
14715         /* Only supported on SLI4 interface type 2 for now */
14716         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
14717             LPFC_SLI_INTF_IF_TYPE_2)
14718                 return -EPERM;
14719
14720         scnprintf(file_name, sizeof(file_name), "%s.grp", phba->ModelName);
14721
14722         if (fw_upgrade == INT_FW_UPGRADE) {
14723                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
14724                                         file_name, &phba->pcidev->dev,
14725                                         GFP_KERNEL, (void *)phba,
14726                                         lpfc_write_firmware);
14727         } else if (fw_upgrade == RUN_FW_UPGRADE) {
14728                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
14729                 if (!ret)
14730                         lpfc_write_firmware(fw, (void *)phba);
14731         } else {
14732                 ret = -EINVAL;
14733         }
14734
14735         return ret;
14736 }
14737
14738 /**
14739  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
14740  * @pdev: pointer to PCI device
14741  * @pid: pointer to PCI device identifier
14742  *
14743  * This routine is called from the kernel's PCI subsystem to device with
14744  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14745  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
14746  * information of the device and driver to see if the driver state that it
14747  * can support this kind of device. If the match is successful, the driver
14748  * core invokes this routine. If this routine determines it can claim the HBA,
14749  * it does all the initialization that it needs to do to handle the HBA
14750  * properly.
14751  *
14752  * Return code
14753  *      0 - driver can claim the device
14754  *      negative value - driver can not claim the device
14755  **/
14756 static int
14757 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
14758 {
14759         struct lpfc_hba   *phba;
14760         struct lpfc_vport *vport = NULL;
14761         struct Scsi_Host  *shost = NULL;
14762         int error;
14763         uint32_t cfg_mode, intr_mode;
14764
14765         /* Allocate memory for HBA structure */
14766         phba = lpfc_hba_alloc(pdev);
14767         if (!phba)
14768                 return -ENOMEM;
14769
14770         INIT_LIST_HEAD(&phba->poll_list);
14771
14772         /* Perform generic PCI device enabling operation */
14773         error = lpfc_enable_pci_dev(phba);
14774         if (error)
14775                 goto out_free_phba;
14776
14777         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
14778         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
14779         if (error)
14780                 goto out_disable_pci_dev;
14781
14782         /* Set up SLI-4 specific device PCI memory space */
14783         error = lpfc_sli4_pci_mem_setup(phba);
14784         if (error) {
14785                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14786                                 "1410 Failed to set up pci memory space.\n");
14787                 goto out_disable_pci_dev;
14788         }
14789
14790         /* Set up SLI-4 Specific device driver resources */
14791         error = lpfc_sli4_driver_resource_setup(phba);
14792         if (error) {
14793                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14794                                 "1412 Failed to set up driver resource.\n");
14795                 goto out_unset_pci_mem_s4;
14796         }
14797
14798         spin_lock_init(&phba->rrq_list_lock);
14799         INIT_LIST_HEAD(&phba->active_rrq_list);
14800         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
14801
14802         /* Set up common device driver resources */
14803         error = lpfc_setup_driver_resource_phase2(phba);
14804         if (error) {
14805                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14806                                 "1414 Failed to set up driver resource.\n");
14807                 goto out_unset_driver_resource_s4;
14808         }
14809
14810         /* Get the default values for Model Name and Description */
14811         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
14812
14813         /* Now, trying to enable interrupt and bring up the device */
14814         cfg_mode = phba->cfg_use_msi;
14815
14816         /* Put device to a known state before enabling interrupt */
14817         phba->pport = NULL;
14818         lpfc_stop_port(phba);
14819
14820         /* Init cpu_map array */
14821         lpfc_cpu_map_array_init(phba);
14822
14823         /* Init hba_eq_hdl array */
14824         lpfc_hba_eq_hdl_array_init(phba);
14825
14826         /* Configure and enable interrupt */
14827         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
14828         if (intr_mode == LPFC_INTR_ERROR) {
14829                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14830                                 "0426 Failed to enable interrupt.\n");
14831                 error = -ENODEV;
14832                 goto out_unset_driver_resource;
14833         }
14834         /* Default to single EQ for non-MSI-X */
14835         if (phba->intr_type != MSIX) {
14836                 phba->cfg_irq_chann = 1;
14837                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14838                         if (phba->nvmet_support)
14839                                 phba->cfg_nvmet_mrq = 1;
14840                 }
14841         }
14842         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
14843
14844         /* Create SCSI host to the physical port */
14845         error = lpfc_create_shost(phba);
14846         if (error) {
14847                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14848                                 "1415 Failed to create scsi host.\n");
14849                 goto out_disable_intr;
14850         }
14851         vport = phba->pport;
14852         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14853
14854         /* Configure sysfs attributes */
14855         error = lpfc_alloc_sysfs_attr(vport);
14856         if (error) {
14857                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14858                                 "1416 Failed to allocate sysfs attr\n");
14859                 goto out_destroy_shost;
14860         }
14861
14862         /* Set up SLI-4 HBA */
14863         if (lpfc_sli4_hba_setup(phba)) {
14864                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14865                                 "1421 Failed to set up hba\n");
14866                 error = -ENODEV;
14867                 goto out_free_sysfs_attr;
14868         }
14869
14870         /* Log the current active interrupt mode */
14871         phba->intr_mode = intr_mode;
14872         lpfc_log_intr_mode(phba, intr_mode);
14873
14874         /* Perform post initialization setup */
14875         lpfc_post_init_setup(phba);
14876
14877         /* NVME support in FW earlier in the driver load corrects the
14878          * FC4 type making a check for nvme_support unnecessary.
14879          */
14880         if (phba->nvmet_support == 0) {
14881                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14882                         /* Create NVME binding with nvme_fc_transport. This
14883                          * ensures the vport is initialized.  If the localport
14884                          * create fails, it should not unload the driver to
14885                          * support field issues.
14886                          */
14887                         error = lpfc_nvme_create_localport(vport);
14888                         if (error) {
14889                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14890                                                 "6004 NVME registration "
14891                                                 "failed, error x%x\n",
14892                                                 error);
14893                         }
14894                 }
14895         }
14896
14897         /* check for firmware upgrade or downgrade */
14898         if (phba->cfg_request_firmware_upgrade)
14899                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
14900
14901         /* Check if there are static vports to be created. */
14902         lpfc_create_static_vport(phba);
14903
14904         timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
14905         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
14906
14907         return 0;
14908
14909 out_free_sysfs_attr:
14910         lpfc_free_sysfs_attr(vport);
14911 out_destroy_shost:
14912         lpfc_destroy_shost(phba);
14913 out_disable_intr:
14914         lpfc_sli4_disable_intr(phba);
14915 out_unset_driver_resource:
14916         lpfc_unset_driver_resource_phase2(phba);
14917 out_unset_driver_resource_s4:
14918         lpfc_sli4_driver_resource_unset(phba);
14919 out_unset_pci_mem_s4:
14920         lpfc_sli4_pci_mem_unset(phba);
14921 out_disable_pci_dev:
14922         lpfc_disable_pci_dev(phba);
14923         if (shost)
14924                 scsi_host_put(shost);
14925 out_free_phba:
14926         lpfc_hba_free(phba);
14927         return error;
14928 }
14929
14930 /**
14931  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
14932  * @pdev: pointer to PCI device
14933  *
14934  * This routine is called from the kernel's PCI subsystem to device with
14935  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14936  * removed from PCI bus, it performs all the necessary cleanup for the HBA
14937  * device to be removed from the PCI subsystem properly.
14938  **/
14939 static void
14940 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
14941 {
14942         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14943         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14944         struct lpfc_vport **vports;
14945         struct lpfc_hba *phba = vport->phba;
14946         int i;
14947
14948         /* Mark the device unloading flag */
14949         set_bit(FC_UNLOADING, &vport->load_flag);
14950         if (phba->cgn_i)
14951                 lpfc_unreg_congestion_buf(phba);
14952
14953         lpfc_free_sysfs_attr(vport);
14954
14955         /* Release all the vports against this physical port */
14956         vports = lpfc_create_vport_work_array(phba);
14957         if (vports != NULL)
14958                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14959                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14960                                 continue;
14961                         fc_vport_terminate(vports[i]->fc_vport);
14962                 }
14963         lpfc_destroy_vport_work_array(phba, vports);
14964
14965         /* Remove FC host with the physical port */
14966         fc_remove_host(shost);
14967         scsi_remove_host(shost);
14968
14969         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
14970          * localports are destroyed after to cleanup all transport memory.
14971          */
14972         lpfc_cleanup(vport);
14973         lpfc_nvmet_destroy_targetport(phba);
14974         lpfc_nvme_destroy_localport(vport);
14975
14976         /* De-allocate multi-XRI pools */
14977         if (phba->cfg_xri_rebalancing)
14978                 lpfc_destroy_multixri_pools(phba);
14979
14980         /*
14981          * Bring down the SLI Layer. This step disables all interrupts,
14982          * clears the rings, discards all mailbox commands, and resets
14983          * the HBA FCoE function.
14984          */
14985         lpfc_debugfs_terminate(vport);
14986
14987         lpfc_stop_hba_timers(phba);
14988         spin_lock_irq(&phba->port_list_lock);
14989         list_del_init(&vport->listentry);
14990         spin_unlock_irq(&phba->port_list_lock);
14991
14992         /* Perform scsi free before driver resource_unset since scsi
14993          * buffers are released to their corresponding pools here.
14994          */
14995         lpfc_io_free(phba);
14996         lpfc_free_iocb_list(phba);
14997         lpfc_sli4_hba_unset(phba);
14998
14999         lpfc_unset_driver_resource_phase2(phba);
15000         lpfc_sli4_driver_resource_unset(phba);
15001
15002         /* Unmap adapter Control and Doorbell registers */
15003         lpfc_sli4_pci_mem_unset(phba);
15004
15005         /* Release PCI resources and disable device's PCI function */
15006         scsi_host_put(shost);
15007         lpfc_disable_pci_dev(phba);
15008
15009         /* Finally, free the driver's device data structure */
15010         lpfc_hba_free(phba);
15011
15012         return;
15013 }
15014
15015 /**
15016  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
15017  * @dev_d: pointer to device
15018  *
15019  * This routine is called from the kernel's PCI subsystem to support system
15020  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
15021  * this method, it quiesces the device by stopping the driver's worker
15022  * thread for the device, turning off device's interrupt and DMA, and bring
15023  * the device offline. Note that as the driver implements the minimum PM
15024  * requirements to a power-aware driver's PM support for suspend/resume -- all
15025  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
15026  * method call will be treated as SUSPEND and the driver will fully
15027  * reinitialize its device during resume() method call, the driver will set
15028  * device to PCI_D3hot state in PCI config space instead of setting it
15029  * according to the @msg provided by the PM.
15030  *
15031  * Return code
15032  *      0 - driver suspended the device
15033  *      Error otherwise
15034  **/
15035 static int __maybe_unused
15036 lpfc_pci_suspend_one_s4(struct device *dev_d)
15037 {
15038         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
15039         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15040
15041         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15042                         "2843 PCI device Power Management suspend.\n");
15043
15044         /* Bring down the device */
15045         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
15046         lpfc_offline(phba);
15047         kthread_stop(phba->worker_thread);
15048
15049         /* Disable interrupt from device */
15050         lpfc_sli4_disable_intr(phba);
15051         lpfc_sli4_queue_destroy(phba);
15052
15053         return 0;
15054 }
15055
15056 /**
15057  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
15058  * @dev_d: pointer to device
15059  *
15060  * This routine is called from the kernel's PCI subsystem to support system
15061  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
15062  * this method, it restores the device's PCI config space state and fully
15063  * reinitializes the device and brings it online. Note that as the driver
15064  * implements the minimum PM requirements to a power-aware driver's PM for
15065  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
15066  * to the suspend() method call will be treated as SUSPEND and the driver
15067  * will fully reinitialize its device during resume() method call, the device
15068  * will be set to PCI_D0 directly in PCI config space before restoring the
15069  * state.
15070  *
15071  * Return code
15072  *      0 - driver suspended the device
15073  *      Error otherwise
15074  **/
15075 static int __maybe_unused
15076 lpfc_pci_resume_one_s4(struct device *dev_d)
15077 {
15078         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
15079         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15080         uint32_t intr_mode;
15081         int error;
15082
15083         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15084                         "0292 PCI device Power Management resume.\n");
15085
15086          /* Startup the kernel thread for this host adapter. */
15087         phba->worker_thread = kthread_run(lpfc_do_work, phba,
15088                                         "lpfc_worker_%d", phba->brd_no);
15089         if (IS_ERR(phba->worker_thread)) {
15090                 error = PTR_ERR(phba->worker_thread);
15091                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15092                                 "0293 PM resume failed to start worker "
15093                                 "thread: error=x%x.\n", error);
15094                 return error;
15095         }
15096
15097         /* Configure and enable interrupt */
15098         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15099         if (intr_mode == LPFC_INTR_ERROR) {
15100                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15101                                 "0294 PM resume Failed to enable interrupt\n");
15102                 return -EIO;
15103         } else
15104                 phba->intr_mode = intr_mode;
15105
15106         /* Restart HBA and bring it online */
15107         lpfc_sli_brdrestart(phba);
15108         lpfc_online(phba);
15109
15110         /* Log the current active interrupt mode */
15111         lpfc_log_intr_mode(phba, phba->intr_mode);
15112
15113         return 0;
15114 }
15115
15116 /**
15117  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
15118  * @phba: pointer to lpfc hba data structure.
15119  *
15120  * This routine is called to prepare the SLI4 device for PCI slot recover. It
15121  * aborts all the outstanding SCSI I/Os to the pci device.
15122  **/
15123 static void
15124 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
15125 {
15126         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15127                         "2828 PCI channel I/O abort preparing for recovery\n");
15128         /*
15129          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
15130          * and let the SCSI mid-layer to retry them to recover.
15131          */
15132         lpfc_sli_abort_fcp_rings(phba);
15133 }
15134
15135 /**
15136  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
15137  * @phba: pointer to lpfc hba data structure.
15138  *
15139  * This routine is called to prepare the SLI4 device for PCI slot reset. It
15140  * disables the device interrupt and pci device, and aborts the internal FCP
15141  * pending I/Os.
15142  **/
15143 static void
15144 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
15145 {
15146         int offline =  pci_channel_offline(phba->pcidev);
15147
15148         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15149                         "2826 PCI channel disable preparing for reset offline"
15150                         " %d\n", offline);
15151
15152         /* Block any management I/Os to the device */
15153         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
15154
15155
15156         /* HBA_PCI_ERR was set in io_error_detect */
15157         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
15158         /* Flush all driver's outstanding I/Os as we are to reset */
15159         lpfc_sli_flush_io_rings(phba);
15160         lpfc_offline(phba);
15161
15162         /* stop all timers */
15163         lpfc_stop_hba_timers(phba);
15164
15165         lpfc_sli4_queue_destroy(phba);
15166         /* Disable interrupt and pci device */
15167         lpfc_sli4_disable_intr(phba);
15168         pci_disable_device(phba->pcidev);
15169 }
15170
15171 /**
15172  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
15173  * @phba: pointer to lpfc hba data structure.
15174  *
15175  * This routine is called to prepare the SLI4 device for PCI slot permanently
15176  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
15177  * pending I/Os.
15178  **/
15179 static void
15180 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
15181 {
15182         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15183                         "2827 PCI channel permanent disable for failure\n");
15184
15185         /* Block all SCSI devices' I/Os on the host */
15186         lpfc_scsi_dev_block(phba);
15187
15188         /* stop all timers */
15189         lpfc_stop_hba_timers(phba);
15190
15191         /* Clean up all driver's outstanding I/Os */
15192         lpfc_sli_flush_io_rings(phba);
15193 }
15194
15195 /**
15196  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
15197  * @pdev: pointer to PCI device.
15198  * @state: the current PCI connection state.
15199  *
15200  * This routine is called from the PCI subsystem for error handling to device
15201  * with SLI-4 interface spec. This function is called by the PCI subsystem
15202  * after a PCI bus error affecting this device has been detected. When this
15203  * function is invoked, it will need to stop all the I/Os and interrupt(s)
15204  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
15205  * for the PCI subsystem to perform proper recovery as desired.
15206  *
15207  * Return codes
15208  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15209  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15210  **/
15211 static pci_ers_result_t
15212 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
15213 {
15214         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15215         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15216         bool hba_pci_err;
15217
15218         switch (state) {
15219         case pci_channel_io_normal:
15220                 /* Non-fatal error, prepare for recovery */
15221                 lpfc_sli4_prep_dev_for_recover(phba);
15222                 return PCI_ERS_RESULT_CAN_RECOVER;
15223         case pci_channel_io_frozen:
15224                 hba_pci_err = test_and_set_bit(HBA_PCI_ERR, &phba->bit_flags);
15225                 /* Fatal error, prepare for slot reset */
15226                 if (!hba_pci_err)
15227                         lpfc_sli4_prep_dev_for_reset(phba);
15228                 else
15229                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15230                                         "2832  Already handling PCI error "
15231                                         "state: x%x\n", state);
15232                 return PCI_ERS_RESULT_NEED_RESET;
15233         case pci_channel_io_perm_failure:
15234                 set_bit(HBA_PCI_ERR, &phba->bit_flags);
15235                 /* Permanent failure, prepare for device down */
15236                 lpfc_sli4_prep_dev_for_perm_failure(phba);
15237                 return PCI_ERS_RESULT_DISCONNECT;
15238         default:
15239                 hba_pci_err = test_and_set_bit(HBA_PCI_ERR, &phba->bit_flags);
15240                 if (!hba_pci_err)
15241                         lpfc_sli4_prep_dev_for_reset(phba);
15242                 /* Unknown state, prepare and request slot reset */
15243                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15244                                 "2825 Unknown PCI error state: x%x\n", state);
15245                 lpfc_sli4_prep_dev_for_reset(phba);
15246                 return PCI_ERS_RESULT_NEED_RESET;
15247         }
15248 }
15249
15250 /**
15251  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
15252  * @pdev: pointer to PCI device.
15253  *
15254  * This routine is called from the PCI subsystem for error handling to device
15255  * with SLI-4 interface spec. It is called after PCI bus has been reset to
15256  * restart the PCI card from scratch, as if from a cold-boot. During the
15257  * PCI subsystem error recovery, after the driver returns
15258  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
15259  * recovery and then call this routine before calling the .resume method to
15260  * recover the device. This function will initialize the HBA device, enable
15261  * the interrupt, but it will just put the HBA to offline state without
15262  * passing any I/O traffic.
15263  *
15264  * Return codes
15265  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
15266  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15267  */
15268 static pci_ers_result_t
15269 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
15270 {
15271         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15272         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15273         struct lpfc_sli *psli = &phba->sli;
15274         uint32_t intr_mode;
15275         bool hba_pci_err;
15276
15277         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
15278         if (pci_enable_device_mem(pdev)) {
15279                 printk(KERN_ERR "lpfc: Cannot re-enable "
15280                        "PCI device after reset.\n");
15281                 return PCI_ERS_RESULT_DISCONNECT;
15282         }
15283
15284         pci_restore_state(pdev);
15285
15286         hba_pci_err = test_and_clear_bit(HBA_PCI_ERR, &phba->bit_flags);
15287         if (!hba_pci_err)
15288                 dev_info(&pdev->dev,
15289                          "hba_pci_err was not set, recovering slot reset.\n");
15290         /*
15291          * As the new kernel behavior of pci_restore_state() API call clears
15292          * device saved_state flag, need to save the restored state again.
15293          */
15294         pci_save_state(pdev);
15295
15296         if (pdev->is_busmaster)
15297                 pci_set_master(pdev);
15298
15299         spin_lock_irq(&phba->hbalock);
15300         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
15301         spin_unlock_irq(&phba->hbalock);
15302
15303         /* Init cpu_map array */
15304         lpfc_cpu_map_array_init(phba);
15305         /* Configure and enable interrupt */
15306         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15307         if (intr_mode == LPFC_INTR_ERROR) {
15308                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15309                                 "2824 Cannot re-enable interrupt after "
15310                                 "slot reset.\n");
15311                 return PCI_ERS_RESULT_DISCONNECT;
15312         } else
15313                 phba->intr_mode = intr_mode;
15314         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
15315
15316         /* Log the current active interrupt mode */
15317         lpfc_log_intr_mode(phba, phba->intr_mode);
15318
15319         return PCI_ERS_RESULT_RECOVERED;
15320 }
15321
15322 /**
15323  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
15324  * @pdev: pointer to PCI device
15325  *
15326  * This routine is called from the PCI subsystem for error handling to device
15327  * with SLI-4 interface spec. It is called when kernel error recovery tells
15328  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
15329  * error recovery. After this call, traffic can start to flow from this device
15330  * again.
15331  **/
15332 static void
15333 lpfc_io_resume_s4(struct pci_dev *pdev)
15334 {
15335         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15336         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15337
15338         /*
15339          * In case of slot reset, as function reset is performed through
15340          * mailbox command which needs DMA to be enabled, this operation
15341          * has to be moved to the io resume phase. Taking device offline
15342          * will perform the necessary cleanup.
15343          */
15344         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
15345                 /* Perform device reset */
15346                 lpfc_sli_brdrestart(phba);
15347                 /* Bring the device back online */
15348                 lpfc_online(phba);
15349         }
15350 }
15351
15352 /**
15353  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
15354  * @pdev: pointer to PCI device
15355  * @pid: pointer to PCI device identifier
15356  *
15357  * This routine is to be registered to the kernel's PCI subsystem. When an
15358  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
15359  * at PCI device-specific information of the device and driver to see if the
15360  * driver state that it can support this kind of device. If the match is
15361  * successful, the driver core invokes this routine. This routine dispatches
15362  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
15363  * do all the initialization that it needs to do to handle the HBA device
15364  * properly.
15365  *
15366  * Return code
15367  *      0 - driver can claim the device
15368  *      negative value - driver can not claim the device
15369  **/
15370 static int
15371 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
15372 {
15373         int rc;
15374         struct lpfc_sli_intf intf;
15375
15376         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
15377                 return -ENODEV;
15378
15379         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
15380             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
15381                 rc = lpfc_pci_probe_one_s4(pdev, pid);
15382         else
15383                 rc = lpfc_pci_probe_one_s3(pdev, pid);
15384
15385         return rc;
15386 }
15387
15388 /**
15389  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
15390  * @pdev: pointer to PCI device
15391  *
15392  * This routine is to be registered to the kernel's PCI subsystem. When an
15393  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
15394  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
15395  * remove routine, which will perform all the necessary cleanup for the
15396  * device to be removed from the PCI subsystem properly.
15397  **/
15398 static void
15399 lpfc_pci_remove_one(struct pci_dev *pdev)
15400 {
15401         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15402         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15403
15404         switch (phba->pci_dev_grp) {
15405         case LPFC_PCI_DEV_LP:
15406                 lpfc_pci_remove_one_s3(pdev);
15407                 break;
15408         case LPFC_PCI_DEV_OC:
15409                 lpfc_pci_remove_one_s4(pdev);
15410                 break;
15411         default:
15412                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15413                                 "1424 Invalid PCI device group: 0x%x\n",
15414                                 phba->pci_dev_grp);
15415                 break;
15416         }
15417         return;
15418 }
15419
15420 /**
15421  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
15422  * @dev: pointer to device
15423  *
15424  * This routine is to be registered to the kernel's PCI subsystem to support
15425  * system Power Management (PM). When PM invokes this method, it dispatches
15426  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
15427  * suspend the device.
15428  *
15429  * Return code
15430  *      0 - driver suspended the device
15431  *      Error otherwise
15432  **/
15433 static int __maybe_unused
15434 lpfc_pci_suspend_one(struct device *dev)
15435 {
15436         struct Scsi_Host *shost = dev_get_drvdata(dev);
15437         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15438         int rc = -ENODEV;
15439
15440         switch (phba->pci_dev_grp) {
15441         case LPFC_PCI_DEV_LP:
15442                 rc = lpfc_pci_suspend_one_s3(dev);
15443                 break;
15444         case LPFC_PCI_DEV_OC:
15445                 rc = lpfc_pci_suspend_one_s4(dev);
15446                 break;
15447         default:
15448                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15449                                 "1425 Invalid PCI device group: 0x%x\n",
15450                                 phba->pci_dev_grp);
15451                 break;
15452         }
15453         return rc;
15454 }
15455
15456 /**
15457  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
15458  * @dev: pointer to device
15459  *
15460  * This routine is to be registered to the kernel's PCI subsystem to support
15461  * system Power Management (PM). When PM invokes this method, it dispatches
15462  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
15463  * resume the device.
15464  *
15465  * Return code
15466  *      0 - driver suspended the device
15467  *      Error otherwise
15468  **/
15469 static int __maybe_unused
15470 lpfc_pci_resume_one(struct device *dev)
15471 {
15472         struct Scsi_Host *shost = dev_get_drvdata(dev);
15473         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15474         int rc = -ENODEV;
15475
15476         switch (phba->pci_dev_grp) {
15477         case LPFC_PCI_DEV_LP:
15478                 rc = lpfc_pci_resume_one_s3(dev);
15479                 break;
15480         case LPFC_PCI_DEV_OC:
15481                 rc = lpfc_pci_resume_one_s4(dev);
15482                 break;
15483         default:
15484                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15485                                 "1426 Invalid PCI device group: 0x%x\n",
15486                                 phba->pci_dev_grp);
15487                 break;
15488         }
15489         return rc;
15490 }
15491
15492 /**
15493  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
15494  * @pdev: pointer to PCI device.
15495  * @state: the current PCI connection state.
15496  *
15497  * This routine is registered to the PCI subsystem for error handling. This
15498  * function is called by the PCI subsystem after a PCI bus error affecting
15499  * this device has been detected. When this routine is invoked, it dispatches
15500  * the action to the proper SLI-3 or SLI-4 device error detected handling
15501  * routine, which will perform the proper error detected operation.
15502  *
15503  * Return codes
15504  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15505  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15506  **/
15507 static pci_ers_result_t
15508 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
15509 {
15510         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15511         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15512         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15513
15514         if (phba->link_state == LPFC_HBA_ERROR &&
15515             test_bit(HBA_IOQ_FLUSH, &phba->hba_flag))
15516                 return PCI_ERS_RESULT_NEED_RESET;
15517
15518         switch (phba->pci_dev_grp) {
15519         case LPFC_PCI_DEV_LP:
15520                 rc = lpfc_io_error_detected_s3(pdev, state);
15521                 break;
15522         case LPFC_PCI_DEV_OC:
15523                 rc = lpfc_io_error_detected_s4(pdev, state);
15524                 break;
15525         default:
15526                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15527                                 "1427 Invalid PCI device group: 0x%x\n",
15528                                 phba->pci_dev_grp);
15529                 break;
15530         }
15531         return rc;
15532 }
15533
15534 /**
15535  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
15536  * @pdev: pointer to PCI device.
15537  *
15538  * This routine is registered to the PCI subsystem for error handling. This
15539  * function is called after PCI bus has been reset to restart the PCI card
15540  * from scratch, as if from a cold-boot. When this routine is invoked, it
15541  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
15542  * routine, which will perform the proper device reset.
15543  *
15544  * Return codes
15545  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
15546  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15547  **/
15548 static pci_ers_result_t
15549 lpfc_io_slot_reset(struct pci_dev *pdev)
15550 {
15551         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15552         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15553         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15554
15555         switch (phba->pci_dev_grp) {
15556         case LPFC_PCI_DEV_LP:
15557                 rc = lpfc_io_slot_reset_s3(pdev);
15558                 break;
15559         case LPFC_PCI_DEV_OC:
15560                 rc = lpfc_io_slot_reset_s4(pdev);
15561                 break;
15562         default:
15563                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15564                                 "1428 Invalid PCI device group: 0x%x\n",
15565                                 phba->pci_dev_grp);
15566                 break;
15567         }
15568         return rc;
15569 }
15570
15571 /**
15572  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
15573  * @pdev: pointer to PCI device
15574  *
15575  * This routine is registered to the PCI subsystem for error handling. It
15576  * is called when kernel error recovery tells the lpfc driver that it is
15577  * OK to resume normal PCI operation after PCI bus error recovery. When
15578  * this routine is invoked, it dispatches the action to the proper SLI-3
15579  * or SLI-4 device io_resume routine, which will resume the device operation.
15580  **/
15581 static void
15582 lpfc_io_resume(struct pci_dev *pdev)
15583 {
15584         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15585         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15586
15587         switch (phba->pci_dev_grp) {
15588         case LPFC_PCI_DEV_LP:
15589                 lpfc_io_resume_s3(pdev);
15590                 break;
15591         case LPFC_PCI_DEV_OC:
15592                 lpfc_io_resume_s4(pdev);
15593                 break;
15594         default:
15595                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15596                                 "1429 Invalid PCI device group: 0x%x\n",
15597                                 phba->pci_dev_grp);
15598                 break;
15599         }
15600         return;
15601 }
15602
15603 /**
15604  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
15605  * @phba: pointer to lpfc hba data structure.
15606  *
15607  * This routine checks to see if OAS is supported for this adapter. If
15608  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
15609  * the enable oas flag is cleared and the pool created for OAS device data
15610  * is destroyed.
15611  *
15612  **/
15613 static void
15614 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
15615 {
15616
15617         if (!phba->cfg_EnableXLane)
15618                 return;
15619
15620         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
15621                 phba->cfg_fof = 1;
15622         } else {
15623                 phba->cfg_fof = 0;
15624                 mempool_destroy(phba->device_data_mem_pool);
15625                 phba->device_data_mem_pool = NULL;
15626         }
15627
15628         return;
15629 }
15630
15631 /**
15632  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
15633  * @phba: pointer to lpfc hba data structure.
15634  *
15635  * This routine checks to see if RAS is supported by the adapter. Check the
15636  * function through which RAS support enablement is to be done.
15637  **/
15638 void
15639 lpfc_sli4_ras_init(struct lpfc_hba *phba)
15640 {
15641         /* if ASIC_GEN_NUM >= 0xC) */
15642         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
15643                     LPFC_SLI_INTF_IF_TYPE_6) ||
15644             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
15645                     LPFC_SLI_INTF_FAMILY_G6)) {
15646                 phba->ras_fwlog.ras_hwsupport = true;
15647                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
15648                     phba->cfg_ras_fwlog_buffsize)
15649                         phba->ras_fwlog.ras_enabled = true;
15650                 else
15651                         phba->ras_fwlog.ras_enabled = false;
15652         } else {
15653                 phba->ras_fwlog.ras_hwsupport = false;
15654         }
15655 }
15656
15657
15658 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
15659
15660 static const struct pci_error_handlers lpfc_err_handler = {
15661         .error_detected = lpfc_io_error_detected,
15662         .slot_reset = lpfc_io_slot_reset,
15663         .resume = lpfc_io_resume,
15664 };
15665
15666 static SIMPLE_DEV_PM_OPS(lpfc_pci_pm_ops_one,
15667                          lpfc_pci_suspend_one,
15668                          lpfc_pci_resume_one);
15669
15670 static struct pci_driver lpfc_driver = {
15671         .name           = LPFC_DRIVER_NAME,
15672         .id_table       = lpfc_id_table,
15673         .probe          = lpfc_pci_probe_one,
15674         .remove         = lpfc_pci_remove_one,
15675         .shutdown       = lpfc_pci_remove_one,
15676         .driver.pm      = &lpfc_pci_pm_ops_one,
15677         .err_handler    = &lpfc_err_handler,
15678 };
15679
15680 static const struct file_operations lpfc_mgmt_fop = {
15681         .owner = THIS_MODULE,
15682 };
15683
15684 static struct miscdevice lpfc_mgmt_dev = {
15685         .minor = MISC_DYNAMIC_MINOR,
15686         .name = "lpfcmgmt",
15687         .fops = &lpfc_mgmt_fop,
15688 };
15689
15690 /**
15691  * lpfc_init - lpfc module initialization routine
15692  *
15693  * This routine is to be invoked when the lpfc module is loaded into the
15694  * kernel. The special kernel macro module_init() is used to indicate the
15695  * role of this routine to the kernel as lpfc module entry point.
15696  *
15697  * Return codes
15698  *   0 - successful
15699  *   -ENOMEM - FC attach transport failed
15700  *   all others - failed
15701  */
15702 static int __init
15703 lpfc_init(void)
15704 {
15705         int error = 0;
15706
15707         pr_info(LPFC_MODULE_DESC "\n");
15708         pr_info(LPFC_COPYRIGHT "\n");
15709
15710         error = misc_register(&lpfc_mgmt_dev);
15711         if (error)
15712                 printk(KERN_ERR "Could not register lpfcmgmt device, "
15713                         "misc_register returned with status %d", error);
15714
15715         error = -ENOMEM;
15716         lpfc_transport_functions.vport_create = lpfc_vport_create;
15717         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
15718         lpfc_transport_template =
15719                                 fc_attach_transport(&lpfc_transport_functions);
15720         if (lpfc_transport_template == NULL)
15721                 goto unregister;
15722         lpfc_vport_transport_template =
15723                 fc_attach_transport(&lpfc_vport_transport_functions);
15724         if (lpfc_vport_transport_template == NULL) {
15725                 fc_release_transport(lpfc_transport_template);
15726                 goto unregister;
15727         }
15728         lpfc_wqe_cmd_template();
15729         lpfc_nvmet_cmd_template();
15730
15731         /* Initialize in case vector mapping is needed */
15732         lpfc_present_cpu = num_present_cpus();
15733
15734         lpfc_pldv_detect = false;
15735
15736         error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
15737                                         "lpfc/sli4:online",
15738                                         lpfc_cpu_online, lpfc_cpu_offline);
15739         if (error < 0)
15740                 goto cpuhp_failure;
15741         lpfc_cpuhp_state = error;
15742
15743         error = pci_register_driver(&lpfc_driver);
15744         if (error)
15745                 goto unwind;
15746
15747         return error;
15748
15749 unwind:
15750         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15751 cpuhp_failure:
15752         fc_release_transport(lpfc_transport_template);
15753         fc_release_transport(lpfc_vport_transport_template);
15754 unregister:
15755         misc_deregister(&lpfc_mgmt_dev);
15756
15757         return error;
15758 }
15759
15760 void lpfc_dmp_dbg(struct lpfc_hba *phba)
15761 {
15762         unsigned int start_idx;
15763         unsigned int dbg_cnt;
15764         unsigned int temp_idx;
15765         int i;
15766         int j = 0;
15767         unsigned long rem_nsec;
15768
15769         if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
15770                 return;
15771
15772         start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
15773         dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
15774         if (!dbg_cnt)
15775                 goto out;
15776         temp_idx = start_idx;
15777         if (dbg_cnt >= DBG_LOG_SZ) {
15778                 dbg_cnt = DBG_LOG_SZ;
15779                 temp_idx -= 1;
15780         } else {
15781                 if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
15782                         temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
15783                 } else {
15784                         if (start_idx < dbg_cnt)
15785                                 start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
15786                         else
15787                                 start_idx -= dbg_cnt;
15788                 }
15789         }
15790         dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
15791                  start_idx, temp_idx, dbg_cnt);
15792
15793         for (i = 0; i < dbg_cnt; i++) {
15794                 if ((start_idx + i) < DBG_LOG_SZ)
15795                         temp_idx = (start_idx + i) % DBG_LOG_SZ;
15796                 else
15797                         temp_idx = j++;
15798                 rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
15799                 dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
15800                          temp_idx,
15801                          (unsigned long)phba->dbg_log[temp_idx].t_ns,
15802                          rem_nsec / 1000,
15803                          phba->dbg_log[temp_idx].log);
15804         }
15805 out:
15806         atomic_set(&phba->dbg_log_cnt, 0);
15807         atomic_set(&phba->dbg_log_dmping, 0);
15808 }
15809
15810 __printf(2, 3)
15811 void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
15812 {
15813         unsigned int idx;
15814         va_list args;
15815         int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
15816         struct va_format vaf;
15817
15818
15819         va_start(args, fmt);
15820         if (unlikely(dbg_dmping)) {
15821                 vaf.fmt = fmt;
15822                 vaf.va = &args;
15823                 dev_info(&phba->pcidev->dev, "%pV", &vaf);
15824                 va_end(args);
15825                 return;
15826         }
15827         idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
15828                 DBG_LOG_SZ;
15829
15830         atomic_inc(&phba->dbg_log_cnt);
15831
15832         vscnprintf(phba->dbg_log[idx].log,
15833                    sizeof(phba->dbg_log[idx].log), fmt, args);
15834         va_end(args);
15835
15836         phba->dbg_log[idx].t_ns = local_clock();
15837 }
15838
15839 /**
15840  * lpfc_exit - lpfc module removal routine
15841  *
15842  * This routine is invoked when the lpfc module is removed from the kernel.
15843  * The special kernel macro module_exit() is used to indicate the role of
15844  * this routine to the kernel as lpfc module exit point.
15845  */
15846 static void __exit
15847 lpfc_exit(void)
15848 {
15849         misc_deregister(&lpfc_mgmt_dev);
15850         pci_unregister_driver(&lpfc_driver);
15851         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15852         fc_release_transport(lpfc_transport_template);
15853         fc_release_transport(lpfc_vport_transport_template);
15854         idr_destroy(&lpfc_hba_index);
15855 }
15856
15857 module_init(lpfc_init);
15858 module_exit(lpfc_exit);
15859 MODULE_LICENSE("GPL");
15860 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
15861 MODULE_AUTHOR("Broadcom");
15862 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);