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) 2017-2018 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/ctype.h>
  34 #include <linux/aer.h>
  35 #include <linux/slab.h>
  36 #include <linux/firmware.h>
  37 #include <linux/miscdevice.h>
  38 #include <linux/percpu.h>
  39 #include <linux/msi.h>
  40 #include <linux/bitops.h>
  41
  42 #include <scsi/scsi.h>
  43 #include <scsi/scsi_device.h>
  44 #include <scsi/scsi_host.h>
  45 #include <scsi/scsi_transport_fc.h>
  46 #include <scsi/scsi_tcq.h>
  47 #include <scsi/fc/fc_fs.h>
  48
  49 #include <linux/nvme-fc-driver.h>
  50
  51 #include "lpfc_hw4.h"
  52 #include "lpfc_hw.h"
  53 #include "lpfc_sli.h"
  54 #include "lpfc_sli4.h"
  55 #include "lpfc_nl.h"
  56 #include "lpfc_disc.h"
  57 #include "lpfc.h"
  58 #include "lpfc_scsi.h"
  59 #include "lpfc_nvme.h"
  60 #include "lpfc_nvmet.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 char *_dump_buf_data;
  68 unsigned long _dump_buf_data_order;
  69 char *_dump_buf_dif;
  70 unsigned long _dump_buf_dif_order;
  71 spinlock_t _dump_buf_lock;
  72
  73 /* Used when mapping IRQ vectors in a driver centric manner */
  74 uint16_t *lpfc_used_cpu;
  75 uint32_t lpfc_present_cpu;
  76
  77 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  78 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  79 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  80 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  81 static int lpfc_setup_endian_order(struct lpfc_hba *);
  82 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  83 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  84 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  85 static void lpfc_init_sgl_list(struct lpfc_hba *);
  86 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  87 static void lpfc_free_active_sgl(struct lpfc_hba *);
  88 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  89 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  90 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  92 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  93 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  94 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  95 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  96
  97 static struct scsi_transport_template *lpfc_transport_template = NULL;
  98 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  99 static DEFINE_IDR(lpfc_hba_index);
 100 #define LPFC_NVMET_BUF_POST 254
 101
 102 /**
 103  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 104  * @phba: pointer to lpfc hba data structure.
 105  *
 106  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 107  * mailbox command. It retrieves the revision information from the HBA and
 108  * collects the Vital Product Data (VPD) about the HBA for preparing the
 109  * configuration of the HBA.
 110  *
 111  * Return codes:
 112  *   0 - success.
 113  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 114  *   Any other value - indicates an error.
 115  **/
 116 int
 117 lpfc_config_port_prep(struct lpfc_hba *phba)
 118 {
 119         lpfc_vpd_t *vp = &phba->vpd;
 120         int i = 0, rc;
 121         LPFC_MBOXQ_t *pmb;
 122         MAILBOX_t *mb;
 123         char *lpfc_vpd_data = NULL;
 124         uint16_t offset = 0;
 125         static char licensed[56] =
 126                     "key unlock for use with gnu public licensed code only\0";
 127         static int init_key = 1;
 128
 129         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 130         if (!pmb) {
 131                 phba->link_state = LPFC_HBA_ERROR;
 132                 return -ENOMEM;
 133         }
 134
 135         mb = &pmb->u.mb;
 136         phba->link_state = LPFC_INIT_MBX_CMDS;
 137
 138         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 139                 if (init_key) {
 140                         uint32_t *ptext = (uint32_t *) licensed;
 141
 142                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 143                                 *ptext = cpu_to_be32(*ptext);
 144                         init_key = 0;
 145                 }
 146
 147                 lpfc_read_nv(phba, pmb);
 148                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 149                         sizeof (mb->un.varRDnvp.rsvd3));
 150                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 151                          sizeof (licensed));
 152
 153                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 154
 155                 if (rc != MBX_SUCCESS) {
 156                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 157                                         "0324 Config Port initialization "
 158                                         "error, mbxCmd x%x READ_NVPARM, "
 159                                         "mbxStatus x%x\n",
 160                                         mb->mbxCommand, mb->mbxStatus);
 161                         mempool_free(pmb, phba->mbox_mem_pool);
 162                         return -ERESTART;
 163                 }
 164                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 165                        sizeof(phba->wwnn));
 166                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 167                        sizeof(phba->wwpn));
 168         }
 169
 170         phba->sli3_options = 0x0;
 171
 172         /* Setup and issue mailbox READ REV command */
 173         lpfc_read_rev(phba, pmb);
 174         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 175         if (rc != MBX_SUCCESS) {
 176                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 177                                 "0439 Adapter failed to init, mbxCmd x%x "
 178                                 "READ_REV, mbxStatus x%x\n",
 179                                 mb->mbxCommand, mb->mbxStatus);
 180                 mempool_free( pmb, phba->mbox_mem_pool);
 181                 return -ERESTART;
 182         }
 183
 184
 185         /*
 186          * The value of rr must be 1 since the driver set the cv field to 1.
 187          * This setting requires the FW to set all revision fields.
 188          */
 189         if (mb->un.varRdRev.rr == 0) {
 190                 vp->rev.rBit = 0;
 191                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 192                                 "0440 Adapter failed to init, READ_REV has "
 193                                 "missing revision information.\n");
 194                 mempool_free(pmb, phba->mbox_mem_pool);
 195                 return -ERESTART;
 196         }
 197
 198         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 199                 mempool_free(pmb, phba->mbox_mem_pool);
 200                 return -EINVAL;
 201         }
 202
 203         /* Save information as VPD data */
 204         vp->rev.rBit = 1;
 205         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 206         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 207         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 208         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 209         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 210         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 211         vp->rev.smRev = mb->un.varRdRev.smRev;
 212         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 213         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 214         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 215         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 216         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 217         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 218         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 219         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 220
 221         /* If the sli feature level is less then 9, we must
 222          * tear down all RPIs and VPIs on link down if NPIV
 223          * is enabled.
 224          */
 225         if (vp->rev.feaLevelHigh < 9)
 226                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 227
 228         if (lpfc_is_LC_HBA(phba->pcidev->device))
 229                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 230                                                 sizeof (phba->RandomData));
 231
 232         /* Get adapter VPD information */
 233         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 234         if (!lpfc_vpd_data)
 235                 goto out_free_mbox;
 236         do {
 237                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 238                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 239
 240                 if (rc != MBX_SUCCESS) {
 241                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 242                                         "0441 VPD not present on adapter, "
 243                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 244                                         mb->mbxCommand, mb->mbxStatus);
 245                         mb->un.varDmp.word_cnt = 0;
 246                 }
 247                 /* dump mem may return a zero when finished or we got a
 248                  * mailbox error, either way we are done.
 249                  */
 250                 if (mb->un.varDmp.word_cnt == 0)
 251                         break;
 252                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 253                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 254                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 255                                       lpfc_vpd_data + offset,
 256                                       mb->un.varDmp.word_cnt);
 257                 offset += mb->un.varDmp.word_cnt;
 258         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 259         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 260
 261         kfree(lpfc_vpd_data);
 262 out_free_mbox:
 263         mempool_free(pmb, phba->mbox_mem_pool);
 264         return 0;
 265 }
 266
 267 /**
 268  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 269  * @phba: pointer to lpfc hba data structure.
 270  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 271  *
 272  * This is the completion handler for driver's configuring asynchronous event
 273  * mailbox command to the device. If the mailbox command returns successfully,
 274  * it will set internal async event support flag to 1; otherwise, it will
 275  * set internal async event support flag to 0.
 276  **/
 277 static void
 278 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 279 {
 280         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 281                 phba->temp_sensor_support = 1;
 282         else
 283                 phba->temp_sensor_support = 0;
 284         mempool_free(pmboxq, phba->mbox_mem_pool);
 285         return;
 286 }
 287
 288 /**
 289  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 290  * @phba: pointer to lpfc hba data structure.
 291  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 292  *
 293  * This is the completion handler for dump mailbox command for getting
 294  * wake up parameters. When this command complete, the response contain
 295  * Option rom version of the HBA. This function translate the version number
 296  * into a human readable string and store it in OptionROMVersion.
 297  **/
 298 static void
 299 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 300 {
 301         struct prog_id *prg;
 302         uint32_t prog_id_word;
 303         char dist = ' ';
 304         /* character array used for decoding dist type. */
 305         char dist_char[] = "nabx";
 306
 307         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 308                 mempool_free(pmboxq, phba->mbox_mem_pool);
 309                 return;
 310         }
 311
 312         prg = (struct prog_id *) &prog_id_word;
 313
 314         /* word 7 contain option rom version */
 315         prog_id_word = pmboxq->u.mb.un.varWords[7];
 316
 317         /* Decode the Option rom version word to a readable string */
 318         if (prg->dist < 4)
 319                 dist = dist_char[prg->dist];
 320
 321         if ((prg->dist == 3) && (prg->num == 0))
 322                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 323                         prg->ver, prg->rev, prg->lev);
 324         else
 325                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 326                         prg->ver, prg->rev, prg->lev,
 327                         dist, prg->num);
 328         mempool_free(pmboxq, phba->mbox_mem_pool);
 329         return;
 330 }
 331
 332 /**
 333  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 334  *      cfg_soft_wwnn, cfg_soft_wwpn
 335  * @vport: pointer to lpfc vport data structure.
 336  *
 337  *
 338  * Return codes
 339  *   None.
 340  **/
 341 void
 342 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 343 {
 344         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 345         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 346
 347         /* If the soft name exists then update it using the service params */
 348         if (vport->phba->cfg_soft_wwnn)
 349                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 350                            vport->fc_sparam.nodeName.u.wwn);
 351         if (vport->phba->cfg_soft_wwpn)
 352                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 353                            vport->fc_sparam.portName.u.wwn);
 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 || vport->phba->cfg_soft_wwnn)
 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 (vport->fc_portname.u.wwn[0] == 0 ||
 376             vport->phba->cfg_soft_wwpn ||
 377             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 378             vport->vport_flag & FAWWPN_SET) {
 379                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 380                         sizeof(struct lpfc_name));
 381                 vport->vport_flag &= ~FAWWPN_SET;
 382                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 383                         vport->vport_flag |= FAWWPN_SET;
 384         }
 385         else
 386                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 387                         sizeof(struct lpfc_name));
 388 }
 389
 390 /**
 391  * lpfc_config_port_post - Perform lpfc initialization after config port
 392  * @phba: pointer to lpfc hba data structure.
 393  *
 394  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 395  * command call. It performs all internal resource and state setups on the
 396  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 397  * ELS ring timers, etc.
 398  *
 399  * Return codes
 400  *   0 - success.
 401  *   Any other value - error.
 402  **/
 403 int
 404 lpfc_config_port_post(struct lpfc_hba *phba)
 405 {
 406         struct lpfc_vport *vport = phba->pport;
 407         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 408         LPFC_MBOXQ_t *pmb;
 409         MAILBOX_t *mb;
 410         struct lpfc_dmabuf *mp;
 411         struct lpfc_sli *psli = &phba->sli;
 412         uint32_t status, timeout;
 413         int i, j;
 414         int rc;
 415
 416         spin_lock_irq(&phba->hbalock);
 417         /*
 418          * If the Config port completed correctly the HBA is not
 419          * over heated any more.
 420          */
 421         if (phba->over_temp_state == HBA_OVER_TEMP)
 422                 phba->over_temp_state = HBA_NORMAL_TEMP;
 423         spin_unlock_irq(&phba->hbalock);
 424
 425         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 426         if (!pmb) {
 427                 phba->link_state = LPFC_HBA_ERROR;
 428                 return -ENOMEM;
 429         }
 430         mb = &pmb->u.mb;
 431
 432         /* Get login parameters for NID.  */
 433         rc = lpfc_read_sparam(phba, pmb, 0);
 434         if (rc) {
 435                 mempool_free(pmb, phba->mbox_mem_pool);
 436                 return -ENOMEM;
 437         }
 438
 439         pmb->vport = vport;
 440         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 441                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 442                                 "0448 Adapter failed init, mbxCmd x%x "
 443                                 "READ_SPARM mbxStatus x%x\n",
 444                                 mb->mbxCommand, mb->mbxStatus);
 445                 phba->link_state = LPFC_HBA_ERROR;
 446                 mp = (struct lpfc_dmabuf *) pmb->context1;
 447                 mempool_free(pmb, phba->mbox_mem_pool);
 448                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 449                 kfree(mp);
 450                 return -EIO;
 451         }
 452
 453         mp = (struct lpfc_dmabuf *) pmb->context1;
 454
 455         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 456         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 457         kfree(mp);
 458         pmb->context1 = NULL;
 459         lpfc_update_vport_wwn(vport);
 460
 461         /* Update the fc_host data structures with new wwn. */
 462         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 463         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 464         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 465
 466         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 467         /* This should be consolidated into parse_vpd ? - mr */
 468         if (phba->SerialNumber[0] == 0) {
 469                 uint8_t *outptr;
 470
 471                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 472                 for (i = 0; i < 12; i++) {
 473                         status = *outptr++;
 474                         j = ((status & 0xf0) >> 4);
 475                         if (j <= 9)
 476                                 phba->SerialNumber[i] =
 477                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 478                         else
 479                                 phba->SerialNumber[i] =
 480                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 481                         i++;
 482                         j = (status & 0xf);
 483                         if (j <= 9)
 484                                 phba->SerialNumber[i] =
 485                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 486                         else
 487                                 phba->SerialNumber[i] =
 488                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 489                 }
 490         }
 491
 492         lpfc_read_config(phba, pmb);
 493         pmb->vport = vport;
 494         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 495                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 496                                 "0453 Adapter failed to init, mbxCmd x%x "
 497                                 "READ_CONFIG, mbxStatus x%x\n",
 498                                 mb->mbxCommand, mb->mbxStatus);
 499                 phba->link_state = LPFC_HBA_ERROR;
 500                 mempool_free( pmb, phba->mbox_mem_pool);
 501                 return -EIO;
 502         }
 503
 504         /* Check if the port is disabled */
 505         lpfc_sli_read_link_ste(phba);
 506
 507         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 508         i = (mb->un.varRdConfig.max_xri + 1);
 509         if (phba->cfg_hba_queue_depth > i) {
 510                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 511                                 "3359 HBA queue depth changed from %d to %d\n",
 512                                 phba->cfg_hba_queue_depth, i);
 513                 phba->cfg_hba_queue_depth = i;
 514         }
 515
 516         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 517         i = (mb->un.varRdConfig.max_xri >> 3);
 518         if (phba->pport->cfg_lun_queue_depth > i) {
 519                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 520                                 "3360 LUN queue depth changed from %d to %d\n",
 521                                 phba->pport->cfg_lun_queue_depth, i);
 522                 phba->pport->cfg_lun_queue_depth = i;
 523         }
 524
 525         phba->lmt = mb->un.varRdConfig.lmt;
 526
 527         /* Get the default values for Model Name and Description */
 528         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 529
 530         phba->link_state = LPFC_LINK_DOWN;
 531
 532         /* Only process IOCBs on ELS ring till hba_state is READY */
 533         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 534                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 535         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 536                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 537
 538         /* Post receive buffers for desired rings */
 539         if (phba->sli_rev != 3)
 540                 lpfc_post_rcv_buf(phba);
 541
 542         /*
 543          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 544          */
 545         if (phba->intr_type == MSIX) {
 546                 rc = lpfc_config_msi(phba, pmb);
 547                 if (rc) {
 548                         mempool_free(pmb, phba->mbox_mem_pool);
 549                         return -EIO;
 550                 }
 551                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 552                 if (rc != MBX_SUCCESS) {
 553                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 554                                         "0352 Config MSI mailbox command "
 555                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 556                                         pmb->u.mb.mbxCommand,
 557                                         pmb->u.mb.mbxStatus);
 558                         mempool_free(pmb, phba->mbox_mem_pool);
 559                         return -EIO;
 560                 }
 561         }
 562
 563         spin_lock_irq(&phba->hbalock);
 564         /* Initialize ERATT handling flag */
 565         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 566
 567         /* Enable appropriate host interrupts */
 568         if (lpfc_readl(phba->HCregaddr, &status)) {
 569                 spin_unlock_irq(&phba->hbalock);
 570                 return -EIO;
 571         }
 572         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 573         if (psli->num_rings > 0)
 574                 status |= HC_R0INT_ENA;
 575         if (psli->num_rings > 1)
 576                 status |= HC_R1INT_ENA;
 577         if (psli->num_rings > 2)
 578                 status |= HC_R2INT_ENA;
 579         if (psli->num_rings > 3)
 580                 status |= HC_R3INT_ENA;
 581
 582         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 583             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 584                 status &= ~(HC_R0INT_ENA);
 585
 586         writel(status, phba->HCregaddr);
 587         readl(phba->HCregaddr); /* flush */
 588         spin_unlock_irq(&phba->hbalock);
 589
 590         /* Set up ring-0 (ELS) timer */
 591         timeout = phba->fc_ratov * 2;
 592         mod_timer(&vport->els_tmofunc,
 593                   jiffies + msecs_to_jiffies(1000 * timeout));
 594         /* Set up heart beat (HB) timer */
 595         mod_timer(&phba->hb_tmofunc,
 596                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 597         phba->hb_outstanding = 0;
 598         phba->last_completion_time = jiffies;
 599         /* Set up error attention (ERATT) polling timer */
 600         mod_timer(&phba->eratt_poll,
 601                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 602
 603         if (phba->hba_flag & LINK_DISABLED) {
 604                 lpfc_printf_log(phba,
 605                         KERN_ERR, LOG_INIT,
 606                         "2598 Adapter Link is disabled.\n");
 607                 lpfc_down_link(phba, pmb);
 608                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 609                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 610                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 611                         lpfc_printf_log(phba,
 612                         KERN_ERR, LOG_INIT,
 613                         "2599 Adapter failed to issue DOWN_LINK"
 614                         " mbox command rc 0x%x\n", rc);
 615
 616                         mempool_free(pmb, phba->mbox_mem_pool);
 617                         return -EIO;
 618                 }
 619         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 620                 mempool_free(pmb, phba->mbox_mem_pool);
 621                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 622                 if (rc)
 623                         return rc;
 624         }
 625         /* MBOX buffer will be freed in mbox compl */
 626         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 627         if (!pmb) {
 628                 phba->link_state = LPFC_HBA_ERROR;
 629                 return -ENOMEM;
 630         }
 631
 632         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 633         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 634         pmb->vport = phba->pport;
 635         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 636
 637         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 638                 lpfc_printf_log(phba,
 639                                 KERN_ERR,
 640                                 LOG_INIT,
 641                                 "0456 Adapter failed to issue "
 642                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 643                                 rc);
 644                 mempool_free(pmb, phba->mbox_mem_pool);
 645         }
 646
 647         /* Get Option rom version */
 648         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 649         if (!pmb) {
 650                 phba->link_state = LPFC_HBA_ERROR;
 651                 return -ENOMEM;
 652         }
 653
 654         lpfc_dump_wakeup_param(phba, pmb);
 655         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 656         pmb->vport = phba->pport;
 657         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 658
 659         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 660                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 661                                 "to get Option ROM version status x%x\n", rc);
 662                 mempool_free(pmb, phba->mbox_mem_pool);
 663         }
 664
 665         return 0;
 666 }
 667
 668 /**
 669  * lpfc_hba_init_link - Initialize the FC link
 670  * @phba: pointer to lpfc hba data structure.
 671  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 672  *
 673  * This routine will issue the INIT_LINK mailbox command call.
 674  * It is available to other drivers through the lpfc_hba data
 675  * structure for use as a delayed link up mechanism with the
 676  * module parameter lpfc_suppress_link_up.
 677  *
 678  * Return code
 679  *              0 - success
 680  *              Any other value - error
 681  **/
 682 static int
 683 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 684 {
 685         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 686 }
 687
 688 /**
 689  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 690  * @phba: pointer to lpfc hba data structure.
 691  * @fc_topology: desired fc topology.
 692  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 693  *
 694  * This routine will issue the INIT_LINK mailbox command call.
 695  * It is available to other drivers through the lpfc_hba data
 696  * structure for use as a delayed link up mechanism with the
 697  * module parameter lpfc_suppress_link_up.
 698  *
 699  * Return code
 700  *              0 - success
 701  *              Any other value - error
 702  **/
 703 int
 704 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 705                                uint32_t flag)
 706 {
 707         struct lpfc_vport *vport = phba->pport;
 708         LPFC_MBOXQ_t *pmb;
 709         MAILBOX_t *mb;
 710         int rc;
 711
 712         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 713         if (!pmb) {
 714                 phba->link_state = LPFC_HBA_ERROR;
 715                 return -ENOMEM;
 716         }
 717         mb = &pmb->u.mb;
 718         pmb->vport = vport;
 719
 720         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 721             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 722              !(phba->lmt & LMT_1Gb)) ||
 723             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 724              !(phba->lmt & LMT_2Gb)) ||
 725             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 726              !(phba->lmt & LMT_4Gb)) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 728              !(phba->lmt & LMT_8Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 730              !(phba->lmt & LMT_10Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 732              !(phba->lmt & LMT_16Gb)) ||
 733             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 734              !(phba->lmt & LMT_32Gb)) ||
 735             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 736              !(phba->lmt & LMT_64Gb))) {
 737                 /* Reset link speed to auto */
 738                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 739                         "1302 Invalid speed for this board:%d "
 740                         "Reset link speed to auto.\n",
 741                         phba->cfg_link_speed);
 742                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 743         }
 744         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 745         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 746         if (phba->sli_rev < LPFC_SLI_REV4)
 747                 lpfc_set_loopback_flag(phba);
 748         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 749         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 750                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 751                         "0498 Adapter failed to init, mbxCmd x%x "
 752                         "INIT_LINK, mbxStatus x%x\n",
 753                         mb->mbxCommand, mb->mbxStatus);
 754                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 755                         /* Clear all interrupt enable conditions */
 756                         writel(0, phba->HCregaddr);
 757                         readl(phba->HCregaddr); /* flush */
 758                         /* Clear all pending interrupts */
 759                         writel(0xffffffff, phba->HAregaddr);
 760                         readl(phba->HAregaddr); /* flush */
 761                 }
 762                 phba->link_state = LPFC_HBA_ERROR;
 763                 if (rc != MBX_BUSY || flag == MBX_POLL)
 764                         mempool_free(pmb, phba->mbox_mem_pool);
 765                 return -EIO;
 766         }
 767         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 768         if (flag == MBX_POLL)
 769                 mempool_free(pmb, phba->mbox_mem_pool);
 770
 771         return 0;
 772 }
 773
 774 /**
 775  * lpfc_hba_down_link - this routine downs the FC link
 776  * @phba: pointer to lpfc hba data structure.
 777  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 778  *
 779  * This routine will issue the DOWN_LINK mailbox command call.
 780  * It is available to other drivers through the lpfc_hba data
 781  * structure for use to stop the link.
 782  *
 783  * Return code
 784  *              0 - success
 785  *              Any other value - error
 786  **/
 787 static int
 788 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 789 {
 790         LPFC_MBOXQ_t *pmb;
 791         int rc;
 792
 793         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 794         if (!pmb) {
 795                 phba->link_state = LPFC_HBA_ERROR;
 796                 return -ENOMEM;
 797         }
 798
 799         lpfc_printf_log(phba,
 800                 KERN_ERR, LOG_INIT,
 801                 "0491 Adapter Link is disabled.\n");
 802         lpfc_down_link(phba, pmb);
 803         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 804         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 805         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 806                 lpfc_printf_log(phba,
 807                 KERN_ERR, LOG_INIT,
 808                 "2522 Adapter failed to issue DOWN_LINK"
 809                 " mbox command rc 0x%x\n", rc);
 810
 811                 mempool_free(pmb, phba->mbox_mem_pool);
 812                 return -EIO;
 813         }
 814         if (flag == MBX_POLL)
 815                 mempool_free(pmb, phba->mbox_mem_pool);
 816
 817         return 0;
 818 }
 819
 820 /**
 821  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 822  * @phba: pointer to lpfc HBA data structure.
 823  *
 824  * This routine will do LPFC uninitialization before the HBA is reset when
 825  * bringing down the SLI Layer.
 826  *
 827  * Return codes
 828  *   0 - success.
 829  *   Any other value - error.
 830  **/
 831 int
 832 lpfc_hba_down_prep(struct lpfc_hba *phba)
 833 {
 834         struct lpfc_vport **vports;
 835         int i;
 836
 837         if (phba->sli_rev <= LPFC_SLI_REV3) {
 838                 /* Disable interrupts */
 839                 writel(0, phba->HCregaddr);
 840                 readl(phba->HCregaddr); /* flush */
 841         }
 842
 843         if (phba->pport->load_flag & FC_UNLOADING)
 844                 lpfc_cleanup_discovery_resources(phba->pport);
 845         else {
 846                 vports = lpfc_create_vport_work_array(phba);
 847                 if (vports != NULL)
 848                         for (i = 0; i <= phba->max_vports &&
 849                                 vports[i] != NULL; i++)
 850                                 lpfc_cleanup_discovery_resources(vports[i]);
 851                 lpfc_destroy_vport_work_array(phba, vports);
 852         }
 853         return 0;
 854 }
 855
 856 /**
 857  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 858  * rspiocb which got deferred
 859  *
 860  * @phba: pointer to lpfc HBA data structure.
 861  *
 862  * This routine will cleanup completed slow path events after HBA is reset
 863  * when bringing down the SLI Layer.
 864  *
 865  *
 866  * Return codes
 867  *   void.
 868  **/
 869 static void
 870 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 871 {
 872         struct lpfc_iocbq *rspiocbq;
 873         struct hbq_dmabuf *dmabuf;
 874         struct lpfc_cq_event *cq_event;
 875
 876         spin_lock_irq(&phba->hbalock);
 877         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 878         spin_unlock_irq(&phba->hbalock);
 879
 880         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 881                 /* Get the response iocb from the head of work queue */
 882                 spin_lock_irq(&phba->hbalock);
 883                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 884                                  cq_event, struct lpfc_cq_event, list);
 885                 spin_unlock_irq(&phba->hbalock);
 886
 887                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 888                 case CQE_CODE_COMPL_WQE:
 889                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 890                                                  cq_event);
 891                         lpfc_sli_release_iocbq(phba, rspiocbq);
 892                         break;
 893                 case CQE_CODE_RECEIVE:
 894                 case CQE_CODE_RECEIVE_V1:
 895                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 896                                               cq_event);
 897                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 898                 }
 899         }
 900 }
 901
 902 /**
 903  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 904  * @phba: pointer to lpfc HBA data structure.
 905  *
 906  * This routine will cleanup posted ELS buffers after the HBA is reset
 907  * when bringing down the SLI Layer.
 908  *
 909  *
 910  * Return codes
 911  *   void.
 912  **/
 913 static void
 914 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 915 {
 916         struct lpfc_sli *psli = &phba->sli;
 917         struct lpfc_sli_ring *pring;
 918         struct lpfc_dmabuf *mp, *next_mp;
 919         LIST_HEAD(buflist);
 920         int count;
 921
 922         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 923                 lpfc_sli_hbqbuf_free_all(phba);
 924         else {
 925                 /* Cleanup preposted buffers on the ELS ring */
 926                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 927                 spin_lock_irq(&phba->hbalock);
 928                 list_splice_init(&pring->postbufq, &buflist);
 929                 spin_unlock_irq(&phba->hbalock);
 930
 931                 count = 0;
 932                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 933                         list_del(&mp->list);
 934                         count++;
 935                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 936                         kfree(mp);
 937                 }
 938
 939                 spin_lock_irq(&phba->hbalock);
 940                 pring->postbufq_cnt -= count;
 941                 spin_unlock_irq(&phba->hbalock);
 942         }
 943 }
 944
 945 /**
 946  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 947  * @phba: pointer to lpfc HBA data structure.
 948  *
 949  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 950  * down the SLI Layer.
 951  *
 952  * Return codes
 953  *   void
 954  **/
 955 static void
 956 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 957 {
 958         struct lpfc_sli *psli = &phba->sli;
 959         struct lpfc_queue *qp = NULL;
 960         struct lpfc_sli_ring *pring;
 961         LIST_HEAD(completions);
 962         int i;
 963         struct lpfc_iocbq *piocb, *next_iocb;
 964
 965         if (phba->sli_rev != LPFC_SLI_REV4) {
 966                 for (i = 0; i < psli->num_rings; i++) {
 967                         pring = &psli->sli3_ring[i];
 968                         spin_lock_irq(&phba->hbalock);
 969                         /* At this point in time the HBA is either reset or DOA
 970                          * Nothing should be on txcmplq as it will
 971                          * NEVER complete.
 972                          */
 973                         list_splice_init(&pring->txcmplq, &completions);
 974                         pring->txcmplq_cnt = 0;
 975                         spin_unlock_irq(&phba->hbalock);
 976
 977                         lpfc_sli_abort_iocb_ring(phba, pring);
 978                 }
 979                 /* Cancel all the IOCBs from the completions list */
 980                 lpfc_sli_cancel_iocbs(phba, &completions,
 981                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 982                 return;
 983         }
 984         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 985                 pring = qp->pring;
 986                 if (!pring)
 987                         continue;
 988                 spin_lock_irq(&pring->ring_lock);
 989                 list_for_each_entry_safe(piocb, next_iocb,
 990                                          &pring->txcmplq, list)
 991                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 992                 list_splice_init(&pring->txcmplq, &completions);
 993                 pring->txcmplq_cnt = 0;
 994                 spin_unlock_irq(&pring->ring_lock);
 995                 lpfc_sli_abort_iocb_ring(phba, pring);
 996         }
 997         /* Cancel all the IOCBs from the completions list */
 998         lpfc_sli_cancel_iocbs(phba, &completions,
 999                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1000 }
1001
1002 /**
1003  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1004         int i;
1005  * @phba: pointer to lpfc HBA data structure.
1006  *
1007  * This routine will do uninitialization after the HBA is reset when bring
1008  * down the SLI Layer.
1009  *
1010  * Return codes
1011  *   0 - success.
1012  *   Any other value - error.
1013  **/
1014 static int
1015 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1016 {
1017         lpfc_hba_free_post_buf(phba);
1018         lpfc_hba_clean_txcmplq(phba);
1019         return 0;
1020 }
1021
1022 /**
1023  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1024  * @phba: pointer to lpfc HBA data structure.
1025  *
1026  * This routine will do uninitialization after the HBA is reset when bring
1027  * down the SLI Layer.
1028  *
1029  * Return codes
1030  *   0 - success.
1031  *   Any other value - error.
1032  **/
1033 static int
1034 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1035 {
1036         struct lpfc_scsi_buf *psb, *psb_next;
1037         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1038         LIST_HEAD(aborts);
1039         LIST_HEAD(nvme_aborts);
1040         LIST_HEAD(nvmet_aborts);
1041         unsigned long iflag = 0;
1042         struct lpfc_sglq *sglq_entry = NULL;
1043         int cnt;
1044
1045
1046         lpfc_sli_hbqbuf_free_all(phba);
1047         lpfc_hba_clean_txcmplq(phba);
1048
1049         /* At this point in time the HBA is either reset or DOA. Either
1050          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1051          * on the lpfc_els_sgl_list so that it can either be freed if the
1052          * driver is unloading or reposted if the driver is restarting
1053          * the port.
1054          */
1055         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1056                                         /* scsl_buf_list */
1057         /* sgl_list_lock required because worker thread uses this
1058          * list.
1059          */
1060         spin_lock(&phba->sli4_hba.sgl_list_lock);
1061         list_for_each_entry(sglq_entry,
1062                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1063                 sglq_entry->state = SGL_FREED;
1064
1065         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1066                         &phba->sli4_hba.lpfc_els_sgl_list);
1067
1068
1069         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1070         /* abts_scsi_buf_list_lock required because worker thread uses this
1071          * list.
1072          */
1073         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
1074                 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1075                 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1076                                  &aborts);
1077                 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1078         }
1079
1080         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1081                 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1082                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list,
1083                                  &nvme_aborts);
1084                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1085                                  &nvmet_aborts);
1086                 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1087         }
1088
1089         spin_unlock_irq(&phba->hbalock);
1090
1091         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1092                 psb->pCmd = NULL;
1093                 psb->status = IOSTAT_SUCCESS;
1094         }
1095         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1096         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1097         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1098
1099         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1100                 cnt = 0;
1101                 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) {
1102                         psb->pCmd = NULL;
1103                         psb->status = IOSTAT_SUCCESS;
1104                         cnt++;
1105                 }
1106                 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
1107                 phba->put_nvme_bufs += cnt;
1108                 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put);
1109                 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
1110
1111                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1112                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1113                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1114                 }
1115         }
1116
1117         lpfc_sli4_free_sp_events(phba);
1118         return 0;
1119 }
1120
1121 /**
1122  * lpfc_hba_down_post - Wrapper func for hba down post routine
1123  * @phba: pointer to lpfc HBA data structure.
1124  *
1125  * This routine wraps the actual SLI3 or SLI4 routine for performing
1126  * uninitialization after the HBA is reset when bring down the SLI Layer.
1127  *
1128  * Return codes
1129  *   0 - success.
1130  *   Any other value - error.
1131  **/
1132 int
1133 lpfc_hba_down_post(struct lpfc_hba *phba)
1134 {
1135         return (*phba->lpfc_hba_down_post)(phba);
1136 }
1137
1138 /**
1139  * lpfc_hb_timeout - The HBA-timer timeout handler
1140  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1141  *
1142  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1143  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1144  * work-port-events bitmap and the worker thread is notified. This timeout
1145  * event will be used by the worker thread to invoke the actual timeout
1146  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1147  * be performed in the timeout handler and the HBA timeout event bit shall
1148  * be cleared by the worker thread after it has taken the event bitmap out.
1149  **/
1150 static void
1151 lpfc_hb_timeout(struct timer_list *t)
1152 {
1153         struct lpfc_hba *phba;
1154         uint32_t tmo_posted;
1155         unsigned long iflag;
1156
1157         phba = from_timer(phba, t, hb_tmofunc);
1158
1159         /* Check for heart beat timeout conditions */
1160         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1161         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1162         if (!tmo_posted)
1163                 phba->pport->work_port_events |= WORKER_HB_TMO;
1164         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1165
1166         /* Tell the worker thread there is work to do */
1167         if (!tmo_posted)
1168                 lpfc_worker_wake_up(phba);
1169         return;
1170 }
1171
1172 /**
1173  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1174  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1175  *
1176  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1177  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1178  * work-port-events bitmap and the worker thread is notified. This timeout
1179  * event will be used by the worker thread to invoke the actual timeout
1180  * handler routine, lpfc_rrq_handler. Any periodical operations will
1181  * be performed in the timeout handler and the RRQ timeout event bit shall
1182  * be cleared by the worker thread after it has taken the event bitmap out.
1183  **/
1184 static void
1185 lpfc_rrq_timeout(struct timer_list *t)
1186 {
1187         struct lpfc_hba *phba;
1188         unsigned long iflag;
1189
1190         phba = from_timer(phba, t, rrq_tmr);
1191         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1192         if (!(phba->pport->load_flag & FC_UNLOADING))
1193                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1194         else
1195                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1196         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1197
1198         if (!(phba->pport->load_flag & FC_UNLOADING))
1199                 lpfc_worker_wake_up(phba);
1200 }
1201
1202 /**
1203  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1204  * @phba: pointer to lpfc hba data structure.
1205  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1206  *
1207  * This is the callback function to the lpfc heart-beat mailbox command.
1208  * If configured, the lpfc driver issues the heart-beat mailbox command to
1209  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1210  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1211  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1212  * heart-beat outstanding state. Once the mailbox command comes back and
1213  * no error conditions detected, the heart-beat mailbox command timer is
1214  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1215  * state is cleared for the next heart-beat. If the timer expired with the
1216  * heart-beat outstanding state set, the driver will put the HBA offline.
1217  **/
1218 static void
1219 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1220 {
1221         unsigned long drvr_flag;
1222
1223         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1224         phba->hb_outstanding = 0;
1225         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1226
1227         /* Check and reset heart-beat timer is necessary */
1228         mempool_free(pmboxq, phba->mbox_mem_pool);
1229         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1230                 !(phba->link_state == LPFC_HBA_ERROR) &&
1231                 !(phba->pport->load_flag & FC_UNLOADING))
1232                 mod_timer(&phba->hb_tmofunc,
1233                           jiffies +
1234                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1235         return;
1236 }
1237
1238 /**
1239  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1240  * @phba: pointer to lpfc hba data structure.
1241  *
1242  * This is the actual HBA-timer timeout handler to be invoked by the worker
1243  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1244  * handler performs any periodic operations needed for the device. If such
1245  * periodic event has already been attended to either in the interrupt handler
1246  * or by processing slow-ring or fast-ring events within the HBA-timer
1247  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1248  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1249  * is configured and there is no heart-beat mailbox command outstanding, a
1250  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1251  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1252  * to offline.
1253  **/
1254 void
1255 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1256 {
1257         struct lpfc_vport **vports;
1258         LPFC_MBOXQ_t *pmboxq;
1259         struct lpfc_dmabuf *buf_ptr;
1260         int retval, i;
1261         struct lpfc_sli *psli = &phba->sli;
1262         LIST_HEAD(completions);
1263         struct lpfc_queue *qp;
1264         unsigned long time_elapsed;
1265         uint32_t tick_cqe, max_cqe, val;
1266         uint64_t tot, data1, data2, data3;
1267         struct lpfc_nvmet_tgtport *tgtp;
1268         struct lpfc_register reg_data;
1269         struct nvme_fc_local_port *localport;
1270         struct lpfc_nvme_lport *lport;
1271         struct lpfc_nvme_ctrl_stat *cstat;
1272         void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr;
1273
1274         vports = lpfc_create_vport_work_array(phba);
1275         if (vports != NULL)
1276                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1277                         lpfc_rcv_seq_check_edtov(vports[i]);
1278                         lpfc_fdmi_num_disc_check(vports[i]);
1279                 }
1280         lpfc_destroy_vport_work_array(phba, vports);
1281
1282         if ((phba->link_state == LPFC_HBA_ERROR) ||
1283                 (phba->pport->load_flag & FC_UNLOADING) ||
1284                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1285                 return;
1286
1287         if (phba->cfg_auto_imax) {
1288                 if (!phba->last_eqdelay_time) {
1289                         phba->last_eqdelay_time = jiffies;
1290                         goto skip_eqdelay;
1291                 }
1292                 time_elapsed = jiffies - phba->last_eqdelay_time;
1293                 phba->last_eqdelay_time = jiffies;
1294
1295                 tot = 0xffff;
1296                 /* Check outstanding IO count */
1297                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1298                         if (phba->nvmet_support) {
1299                                 tgtp = phba->targetport->private;
1300                                 /* Calculate outstanding IOs */
1301                                 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
1302                                 tot += atomic_read(&tgtp->xmt_fcp_release);
1303                                 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
1304                         } else {
1305                                 localport = phba->pport->localport;
1306                                 if (!localport || !localport->private)
1307                                         goto skip_eqdelay;
1308                                 lport = (struct lpfc_nvme_lport *)
1309                                         localport->private;
1310                                 tot = 0;
1311                                 for (i = 0;
1312                                         i < phba->cfg_nvme_io_channel; i++) {
1313                                         cstat = &lport->cstat[i];
1314                                         data1 = atomic_read(
1315                                                 &cstat->fc4NvmeInputRequests);
1316                                         data2 = atomic_read(
1317                                                 &cstat->fc4NvmeOutputRequests);
1318                                         data3 = atomic_read(
1319                                                 &cstat->fc4NvmeControlRequests);
1320                                         tot += (data1 + data2 + data3);
1321                                         tot -= atomic_read(
1322                                                 &cstat->fc4NvmeIoCmpls);
1323                                 }
1324                         }
1325                 }
1326
1327                 /* Interrupts per sec per EQ */
1328                 val = phba->cfg_fcp_imax / phba->io_channel_irqs;
1329                 tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */
1330
1331                 /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */
1332                 max_cqe = time_elapsed * tick_cqe;
1333
1334                 for (i = 0; i < phba->io_channel_irqs; i++) {
1335                         /* Fast-path EQ */
1336                         qp = phba->sli4_hba.hba_eq[i];
1337                         if (!qp)
1338                                 continue;
1339
1340                         /* Use no EQ delay if we don't have many outstanding
1341                          * IOs, or if we are only processing 1 CQE/ISR or less.
1342                          * Otherwise, assume we can process up to lpfc_fcp_imax
1343                          * interrupts per HBA.
1344                          */
1345                         if (tot < LPFC_NODELAY_MAX_IO ||
1346                             qp->EQ_cqe_cnt <= max_cqe)
1347                                 val = 0;
1348                         else
1349                                 val = phba->cfg_fcp_imax;
1350
1351                         if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
1352                                 /* Use EQ Delay Register method */
1353
1354                                 /* Convert for EQ Delay register */
1355                                 if (val) {
1356                                         /* First, interrupts per sec per EQ */
1357                                         val = phba->cfg_fcp_imax /
1358                                                 phba->io_channel_irqs;
1359
1360                                         /* us delay between each interrupt */
1361                                         val = LPFC_SEC_TO_USEC / val;
1362                                 }
1363                                 if (val != qp->q_mode) {
1364                                         reg_data.word0 = 0;
1365                                         bf_set(lpfc_sliport_eqdelay_id,
1366                                                &reg_data, qp->queue_id);
1367                                         bf_set(lpfc_sliport_eqdelay_delay,
1368                                                &reg_data, val);
1369                                         writel(reg_data.word0, eqdreg);
1370                                 }
1371                         } else {
1372                                 /* Use mbox command method */
1373                                 if (val != qp->q_mode)
1374                                         lpfc_modify_hba_eq_delay(phba, i,
1375                                                                  1, val);
1376                         }
1377
1378                         /*
1379                          * val is cfg_fcp_imax or 0 for mbox delay or us delay
1380                          * between interrupts for EQDR.
1381                          */
1382                         qp->q_mode = val;
1383                         qp->EQ_cqe_cnt = 0;
1384                 }
1385         }
1386
1387 skip_eqdelay:
1388         spin_lock_irq(&phba->pport->work_port_lock);
1389
1390         if (time_after(phba->last_completion_time +
1391                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1392                         jiffies)) {
1393                 spin_unlock_irq(&phba->pport->work_port_lock);
1394                 if (!phba->hb_outstanding)
1395                         mod_timer(&phba->hb_tmofunc,
1396                                 jiffies +
1397                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1398                 else
1399                         mod_timer(&phba->hb_tmofunc,
1400                                 jiffies +
1401                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1402                 return;
1403         }
1404         spin_unlock_irq(&phba->pport->work_port_lock);
1405
1406         if (phba->elsbuf_cnt &&
1407                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1408                 spin_lock_irq(&phba->hbalock);
1409                 list_splice_init(&phba->elsbuf, &completions);
1410                 phba->elsbuf_cnt = 0;
1411                 phba->elsbuf_prev_cnt = 0;
1412                 spin_unlock_irq(&phba->hbalock);
1413
1414                 while (!list_empty(&completions)) {
1415                         list_remove_head(&completions, buf_ptr,
1416                                 struct lpfc_dmabuf, list);
1417                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1418                         kfree(buf_ptr);
1419                 }
1420         }
1421         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1422
1423         /* If there is no heart beat outstanding, issue a heartbeat command */
1424         if (phba->cfg_enable_hba_heartbeat) {
1425                 if (!phba->hb_outstanding) {
1426                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1427                                 (list_empty(&psli->mboxq))) {
1428                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1429                                                         GFP_KERNEL);
1430                                 if (!pmboxq) {
1431                                         mod_timer(&phba->hb_tmofunc,
1432                                                  jiffies +
1433                                                  msecs_to_jiffies(1000 *
1434                                                  LPFC_HB_MBOX_INTERVAL));
1435                                         return;
1436                                 }
1437
1438                                 lpfc_heart_beat(phba, pmboxq);
1439                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1440                                 pmboxq->vport = phba->pport;
1441                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1442                                                 MBX_NOWAIT);
1443
1444                                 if (retval != MBX_BUSY &&
1445                                         retval != MBX_SUCCESS) {
1446                                         mempool_free(pmboxq,
1447                                                         phba->mbox_mem_pool);
1448                                         mod_timer(&phba->hb_tmofunc,
1449                                                 jiffies +
1450                                                 msecs_to_jiffies(1000 *
1451                                                 LPFC_HB_MBOX_INTERVAL));
1452                                         return;
1453                                 }
1454                                 phba->skipped_hb = 0;
1455                                 phba->hb_outstanding = 1;
1456                         } else if (time_before_eq(phba->last_completion_time,
1457                                         phba->skipped_hb)) {
1458                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1459                                         "2857 Last completion time not "
1460                                         " updated in %d ms\n",
1461                                         jiffies_to_msecs(jiffies
1462                                                  - phba->last_completion_time));
1463                         } else
1464                                 phba->skipped_hb = jiffies;
1465
1466                         mod_timer(&phba->hb_tmofunc,
1467                                  jiffies +
1468                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1469                         return;
1470                 } else {
1471                         /*
1472                         * If heart beat timeout called with hb_outstanding set
1473                         * we need to give the hb mailbox cmd a chance to
1474                         * complete or TMO.
1475                         */
1476                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1477                                         "0459 Adapter heartbeat still out"
1478                                         "standing:last compl time was %d ms.\n",
1479                                         jiffies_to_msecs(jiffies
1480                                                  - phba->last_completion_time));
1481                         mod_timer(&phba->hb_tmofunc,
1482                                 jiffies +
1483                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1484                 }
1485         } else {
1486                         mod_timer(&phba->hb_tmofunc,
1487                                 jiffies +
1488                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1489         }
1490 }
1491
1492 /**
1493  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1494  * @phba: pointer to lpfc hba data structure.
1495  *
1496  * This routine is called to bring the HBA offline when HBA hardware error
1497  * other than Port Error 6 has been detected.
1498  **/
1499 static void
1500 lpfc_offline_eratt(struct lpfc_hba *phba)
1501 {
1502         struct lpfc_sli   *psli = &phba->sli;
1503
1504         spin_lock_irq(&phba->hbalock);
1505         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1506         spin_unlock_irq(&phba->hbalock);
1507         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1508
1509         lpfc_offline(phba);
1510         lpfc_reset_barrier(phba);
1511         spin_lock_irq(&phba->hbalock);
1512         lpfc_sli_brdreset(phba);
1513         spin_unlock_irq(&phba->hbalock);
1514         lpfc_hba_down_post(phba);
1515         lpfc_sli_brdready(phba, HS_MBRDY);
1516         lpfc_unblock_mgmt_io(phba);
1517         phba->link_state = LPFC_HBA_ERROR;
1518         return;
1519 }
1520
1521 /**
1522  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1523  * @phba: pointer to lpfc hba data structure.
1524  *
1525  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1526  * other than Port Error 6 has been detected.
1527  **/
1528 void
1529 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1530 {
1531         spin_lock_irq(&phba->hbalock);
1532         phba->link_state = LPFC_HBA_ERROR;
1533         spin_unlock_irq(&phba->hbalock);
1534
1535         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1536         lpfc_offline(phba);
1537         lpfc_hba_down_post(phba);
1538         lpfc_unblock_mgmt_io(phba);
1539 }
1540
1541 /**
1542  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1543  * @phba: pointer to lpfc hba data structure.
1544  *
1545  * This routine is invoked to handle the deferred HBA hardware error
1546  * conditions. This type of error is indicated by HBA by setting ER1
1547  * and another ER bit in the host status register. The driver will
1548  * wait until the ER1 bit clears before handling the error condition.
1549  **/
1550 static void
1551 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1552 {
1553         uint32_t old_host_status = phba->work_hs;
1554         struct lpfc_sli *psli = &phba->sli;
1555
1556         /* If the pci channel is offline, ignore possible errors,
1557          * since we cannot communicate with the pci card anyway.
1558          */
1559         if (pci_channel_offline(phba->pcidev)) {
1560                 spin_lock_irq(&phba->hbalock);
1561                 phba->hba_flag &= ~DEFER_ERATT;
1562                 spin_unlock_irq(&phba->hbalock);
1563                 return;
1564         }
1565
1566         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1567                 "0479 Deferred Adapter Hardware Error "
1568                 "Data: x%x x%x x%x\n",
1569                 phba->work_hs,
1570                 phba->work_status[0], phba->work_status[1]);
1571
1572         spin_lock_irq(&phba->hbalock);
1573         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1574         spin_unlock_irq(&phba->hbalock);
1575
1576
1577         /*
1578          * Firmware stops when it triggred erratt. That could cause the I/Os
1579          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1580          * SCSI layer retry it after re-establishing link.
1581          */
1582         lpfc_sli_abort_fcp_rings(phba);
1583
1584         /*
1585          * There was a firmware error. Take the hba offline and then
1586          * attempt to restart it.
1587          */
1588         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1589         lpfc_offline(phba);
1590
1591         /* Wait for the ER1 bit to clear.*/
1592         while (phba->work_hs & HS_FFER1) {
1593                 msleep(100);
1594                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1595                         phba->work_hs = UNPLUG_ERR ;
1596                         break;
1597                 }
1598                 /* If driver is unloading let the worker thread continue */
1599                 if (phba->pport->load_flag & FC_UNLOADING) {
1600                         phba->work_hs = 0;
1601                         break;
1602                 }
1603         }
1604
1605         /*
1606          * This is to ptrotect against a race condition in which
1607          * first write to the host attention register clear the
1608          * host status register.
1609          */
1610         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1611                 phba->work_hs = old_host_status & ~HS_FFER1;
1612
1613         spin_lock_irq(&phba->hbalock);
1614         phba->hba_flag &= ~DEFER_ERATT;
1615         spin_unlock_irq(&phba->hbalock);
1616         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1617         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1618 }
1619
1620 static void
1621 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1622 {
1623         struct lpfc_board_event_header board_event;
1624         struct Scsi_Host *shost;
1625
1626         board_event.event_type = FC_REG_BOARD_EVENT;
1627         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1628         shost = lpfc_shost_from_vport(phba->pport);
1629         fc_host_post_vendor_event(shost, fc_get_event_number(),
1630                                   sizeof(board_event),
1631                                   (char *) &board_event,
1632                                   LPFC_NL_VENDOR_ID);
1633 }
1634
1635 /**
1636  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1637  * @phba: pointer to lpfc hba data structure.
1638  *
1639  * This routine is invoked to handle the following HBA hardware error
1640  * conditions:
1641  * 1 - HBA error attention interrupt
1642  * 2 - DMA ring index out of range
1643  * 3 - Mailbox command came back as unknown
1644  **/
1645 static void
1646 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1647 {
1648         struct lpfc_vport *vport = phba->pport;
1649         struct lpfc_sli   *psli = &phba->sli;
1650         uint32_t event_data;
1651         unsigned long temperature;
1652         struct temp_event temp_event_data;
1653         struct Scsi_Host  *shost;
1654
1655         /* If the pci channel is offline, ignore possible errors,
1656          * since we cannot communicate with the pci card anyway.
1657          */
1658         if (pci_channel_offline(phba->pcidev)) {
1659                 spin_lock_irq(&phba->hbalock);
1660                 phba->hba_flag &= ~DEFER_ERATT;
1661                 spin_unlock_irq(&phba->hbalock);
1662                 return;
1663         }
1664
1665         /* If resets are disabled then leave the HBA alone and return */
1666         if (!phba->cfg_enable_hba_reset)
1667                 return;
1668
1669         /* Send an internal error event to mgmt application */
1670         lpfc_board_errevt_to_mgmt(phba);
1671
1672         if (phba->hba_flag & DEFER_ERATT)
1673                 lpfc_handle_deferred_eratt(phba);
1674
1675         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1676                 if (phba->work_hs & HS_FFER6)
1677                         /* Re-establishing Link */
1678                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1679                                         "1301 Re-establishing Link "
1680                                         "Data: x%x x%x x%x\n",
1681                                         phba->work_hs, phba->work_status[0],
1682                                         phba->work_status[1]);
1683                 if (phba->work_hs & HS_FFER8)
1684                         /* Device Zeroization */
1685                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1686                                         "2861 Host Authentication device "
1687                                         "zeroization Data:x%x x%x x%x\n",
1688                                         phba->work_hs, phba->work_status[0],
1689                                         phba->work_status[1]);
1690
1691                 spin_lock_irq(&phba->hbalock);
1692                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1693                 spin_unlock_irq(&phba->hbalock);
1694
1695                 /*
1696                 * Firmware stops when it triggled erratt with HS_FFER6.
1697                 * That could cause the I/Os dropped by the firmware.
1698                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1699                 * retry it after re-establishing link.
1700                 */
1701                 lpfc_sli_abort_fcp_rings(phba);
1702
1703                 /*
1704                  * There was a firmware error.  Take the hba offline and then
1705                  * attempt to restart it.
1706                  */
1707                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1708                 lpfc_offline(phba);
1709                 lpfc_sli_brdrestart(phba);
1710                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1711                         lpfc_unblock_mgmt_io(phba);
1712                         return;
1713                 }
1714                 lpfc_unblock_mgmt_io(phba);
1715         } else if (phba->work_hs & HS_CRIT_TEMP) {
1716                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1717                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1718                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1719                 temp_event_data.data = (uint32_t)temperature;
1720
1721                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1722                                 "0406 Adapter maximum temperature exceeded "
1723                                 "(%ld), taking this port offline "
1724                                 "Data: x%x x%x x%x\n",
1725                                 temperature, phba->work_hs,
1726                                 phba->work_status[0], phba->work_status[1]);
1727
1728                 shost = lpfc_shost_from_vport(phba->pport);
1729                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1730                                           sizeof(temp_event_data),
1731                                           (char *) &temp_event_data,
1732                                           SCSI_NL_VID_TYPE_PCI
1733                                           | PCI_VENDOR_ID_EMULEX);
1734
1735                 spin_lock_irq(&phba->hbalock);
1736                 phba->over_temp_state = HBA_OVER_TEMP;
1737                 spin_unlock_irq(&phba->hbalock);
1738                 lpfc_offline_eratt(phba);
1739
1740         } else {
1741                 /* The if clause above forces this code path when the status
1742                  * failure is a value other than FFER6. Do not call the offline
1743                  * twice. This is the adapter hardware error path.
1744                  */
1745                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1746                                 "0457 Adapter Hardware Error "
1747                                 "Data: x%x x%x x%x\n",
1748                                 phba->work_hs,
1749                                 phba->work_status[0], phba->work_status[1]);
1750
1751                 event_data = FC_REG_DUMP_EVENT;
1752                 shost = lpfc_shost_from_vport(vport);
1753                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1754                                 sizeof(event_data), (char *) &event_data,
1755                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1756
1757                 lpfc_offline_eratt(phba);
1758         }
1759         return;
1760 }
1761
1762 /**
1763  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1764  * @phba: pointer to lpfc hba data structure.
1765  * @mbx_action: flag for mailbox shutdown action.
1766  *
1767  * This routine is invoked to perform an SLI4 port PCI function reset in
1768  * response to port status register polling attention. It waits for port
1769  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1770  * During this process, interrupt vectors are freed and later requested
1771  * for handling possible port resource change.
1772  **/
1773 static int
1774 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1775                             bool en_rn_msg)
1776 {
1777         int rc;
1778         uint32_t intr_mode;
1779
1780         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1781             LPFC_SLI_INTF_IF_TYPE_2) {
1782                 /*
1783                  * On error status condition, driver need to wait for port
1784                  * ready before performing reset.
1785                  */
1786                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1787                 if (rc)
1788                         return rc;
1789         }
1790
1791         /* need reset: attempt for port recovery */
1792         if (en_rn_msg)
1793                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1794                                 "2887 Reset Needed: Attempting Port "
1795                                 "Recovery...\n");
1796         lpfc_offline_prep(phba, mbx_action);
1797         lpfc_offline(phba);
1798         /* release interrupt for possible resource change */
1799         lpfc_sli4_disable_intr(phba);
1800         lpfc_sli_brdrestart(phba);
1801         /* request and enable interrupt */
1802         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1803         if (intr_mode == LPFC_INTR_ERROR) {
1804                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1805                                 "3175 Failed to enable interrupt\n");
1806                 return -EIO;
1807         }
1808         phba->intr_mode = intr_mode;
1809         rc = lpfc_online(phba);
1810         if (rc == 0)
1811                 lpfc_unblock_mgmt_io(phba);
1812
1813         return rc;
1814 }
1815
1816 /**
1817  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1818  * @phba: pointer to lpfc hba data structure.
1819  *
1820  * This routine is invoked to handle the SLI4 HBA hardware error attention
1821  * conditions.
1822  **/
1823 static void
1824 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1825 {
1826         struct lpfc_vport *vport = phba->pport;
1827         uint32_t event_data;
1828         struct Scsi_Host *shost;
1829         uint32_t if_type;
1830         struct lpfc_register portstat_reg = {0};
1831         uint32_t reg_err1, reg_err2;
1832         uint32_t uerrlo_reg, uemasklo_reg;
1833         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1834         bool en_rn_msg = true;
1835         struct temp_event temp_event_data;
1836         struct lpfc_register portsmphr_reg;
1837         int rc, i;
1838
1839         /* If the pci channel is offline, ignore possible errors, since
1840          * we cannot communicate with the pci card anyway.
1841          */
1842         if (pci_channel_offline(phba->pcidev))
1843                 return;
1844
1845         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1846         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1847         switch (if_type) {
1848         case LPFC_SLI_INTF_IF_TYPE_0:
1849                 pci_rd_rc1 = lpfc_readl(
1850                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1851                                 &uerrlo_reg);
1852                 pci_rd_rc2 = lpfc_readl(
1853                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1854                                 &uemasklo_reg);
1855                 /* consider PCI bus read error as pci_channel_offline */
1856                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1857                         return;
1858                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1859                         lpfc_sli4_offline_eratt(phba);
1860                         return;
1861                 }
1862                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1863                                 "7623 Checking UE recoverable");
1864
1865                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1866                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1867                                        &portsmphr_reg.word0))
1868                                 continue;
1869
1870                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1871                                                    &portsmphr_reg);
1872                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1873                             LPFC_PORT_SEM_UE_RECOVERABLE)
1874                                 break;
1875                         /*Sleep for 1Sec, before checking SEMAPHORE */
1876                         msleep(1000);
1877                 }
1878
1879                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1880                                 "4827 smphr_port_status x%x : Waited %dSec",
1881                                 smphr_port_status, i);
1882
1883                 /* Recoverable UE, reset the HBA device */
1884                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1885                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1886                         for (i = 0; i < 20; i++) {
1887                                 msleep(1000);
1888                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1889                                     &portsmphr_reg.word0) &&
1890                                     (LPFC_POST_STAGE_PORT_READY ==
1891                                      bf_get(lpfc_port_smphr_port_status,
1892                                      &portsmphr_reg))) {
1893                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1894                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1895                                         if (rc == 0)
1896                                                 return;
1897                                         lpfc_printf_log(phba,
1898                                                 KERN_ERR, LOG_INIT,
1899                                                 "4215 Failed to recover UE");
1900                                         break;
1901                                 }
1902                         }
1903                 }
1904                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1905                                 "7624 Firmware not ready: Failing UE recovery,"
1906                                 " waited %dSec", i);
1907                 lpfc_sli4_offline_eratt(phba);
1908                 break;
1909
1910         case LPFC_SLI_INTF_IF_TYPE_2:
1911         case LPFC_SLI_INTF_IF_TYPE_6:
1912                 pci_rd_rc1 = lpfc_readl(
1913                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1914                                 &portstat_reg.word0);
1915                 /* consider PCI bus read error as pci_channel_offline */
1916                 if (pci_rd_rc1 == -EIO) {
1917                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1918                                 "3151 PCI bus read access failure: x%x\n",
1919                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1920                         return;
1921                 }
1922                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1923                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1924                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1925                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1926                                 "2889 Port Overtemperature event, "
1927                                 "taking port offline Data: x%x x%x\n",
1928                                 reg_err1, reg_err2);
1929
1930                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1931                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1932                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1933                         temp_event_data.data = 0xFFFFFFFF;
1934
1935                         shost = lpfc_shost_from_vport(phba->pport);
1936                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1937                                                   sizeof(temp_event_data),
1938                                                   (char *)&temp_event_data,
1939                                                   SCSI_NL_VID_TYPE_PCI
1940                                                   | PCI_VENDOR_ID_EMULEX);
1941
1942                         spin_lock_irq(&phba->hbalock);
1943                         phba->over_temp_state = HBA_OVER_TEMP;
1944                         spin_unlock_irq(&phba->hbalock);
1945                         lpfc_sli4_offline_eratt(phba);
1946                         return;
1947                 }
1948                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1949                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1950                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1951                                         "3143 Port Down: Firmware Update "
1952                                         "Detected\n");
1953                         en_rn_msg = false;
1954                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1955                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1956                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1957                                         "3144 Port Down: Debug Dump\n");
1958                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1959                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1960                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1961                                         "3145 Port Down: Provisioning\n");
1962
1963                 /* If resets are disabled then leave the HBA alone and return */
1964                 if (!phba->cfg_enable_hba_reset)
1965                         return;
1966
1967                 /* Check port status register for function reset */
1968                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1969                                 en_rn_msg);
1970                 if (rc == 0) {
1971                         /* don't report event on forced debug dump */
1972                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1973                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1974                                 return;
1975                         else
1976                                 break;
1977                 }
1978                 /* fall through for not able to recover */
1979                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1980                                 "3152 Unrecoverable error, bring the port "
1981                                 "offline\n");
1982                 lpfc_sli4_offline_eratt(phba);
1983                 break;
1984         case LPFC_SLI_INTF_IF_TYPE_1:
1985         default:
1986                 break;
1987         }
1988         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1989                         "3123 Report dump event to upper layer\n");
1990         /* Send an internal error event to mgmt application */
1991         lpfc_board_errevt_to_mgmt(phba);
1992
1993         event_data = FC_REG_DUMP_EVENT;
1994         shost = lpfc_shost_from_vport(vport);
1995         fc_host_post_vendor_event(shost, fc_get_event_number(),
1996                                   sizeof(event_data), (char *) &event_data,
1997                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1998 }
1999
2000 /**
2001  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2002  * @phba: pointer to lpfc HBA data structure.
2003  *
2004  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2005  * routine from the API jump table function pointer from the lpfc_hba struct.
2006  *
2007  * Return codes
2008  *   0 - success.
2009  *   Any other value - error.
2010  **/
2011 void
2012 lpfc_handle_eratt(struct lpfc_hba *phba)
2013 {
2014         (*phba->lpfc_handle_eratt)(phba);
2015 }
2016
2017 /**
2018  * lpfc_handle_latt - The HBA link event handler
2019  * @phba: pointer to lpfc hba data structure.
2020  *
2021  * This routine is invoked from the worker thread to handle a HBA host
2022  * attention link event. SLI3 only.
2023  **/
2024 void
2025 lpfc_handle_latt(struct lpfc_hba *phba)
2026 {
2027         struct lpfc_vport *vport = phba->pport;
2028         struct lpfc_sli   *psli = &phba->sli;
2029         LPFC_MBOXQ_t *pmb;
2030         volatile uint32_t control;
2031         struct lpfc_dmabuf *mp;
2032         int rc = 0;
2033
2034         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2035         if (!pmb) {
2036                 rc = 1;
2037                 goto lpfc_handle_latt_err_exit;
2038         }
2039
2040         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2041         if (!mp) {
2042                 rc = 2;
2043                 goto lpfc_handle_latt_free_pmb;
2044         }
2045
2046         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2047         if (!mp->virt) {
2048                 rc = 3;
2049                 goto lpfc_handle_latt_free_mp;
2050         }
2051
2052         /* Cleanup any outstanding ELS commands */
2053         lpfc_els_flush_all_cmd(phba);
2054
2055         psli->slistat.link_event++;
2056         lpfc_read_topology(phba, pmb, mp);
2057         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2058         pmb->vport = vport;
2059         /* Block ELS IOCBs until we have processed this mbox command */
2060         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2061         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2062         if (rc == MBX_NOT_FINISHED) {
2063                 rc = 4;
2064                 goto lpfc_handle_latt_free_mbuf;
2065         }
2066
2067         /* Clear Link Attention in HA REG */
2068         spin_lock_irq(&phba->hbalock);
2069         writel(HA_LATT, phba->HAregaddr);
2070         readl(phba->HAregaddr); /* flush */
2071         spin_unlock_irq(&phba->hbalock);
2072
2073         return;
2074
2075 lpfc_handle_latt_free_mbuf:
2076         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2077         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2078 lpfc_handle_latt_free_mp:
2079         kfree(mp);
2080 lpfc_handle_latt_free_pmb:
2081         mempool_free(pmb, phba->mbox_mem_pool);
2082 lpfc_handle_latt_err_exit:
2083         /* Enable Link attention interrupts */
2084         spin_lock_irq(&phba->hbalock);
2085         psli->sli_flag |= LPFC_PROCESS_LA;
2086         control = readl(phba->HCregaddr);
2087         control |= HC_LAINT_ENA;
2088         writel(control, phba->HCregaddr);
2089         readl(phba->HCregaddr); /* flush */
2090
2091         /* Clear Link Attention in HA REG */
2092         writel(HA_LATT, phba->HAregaddr);
2093         readl(phba->HAregaddr); /* flush */
2094         spin_unlock_irq(&phba->hbalock);
2095         lpfc_linkdown(phba);
2096         phba->link_state = LPFC_HBA_ERROR;
2097
2098         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2099                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2100
2101         return;
2102 }
2103
2104 /**
2105  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2106  * @phba: pointer to lpfc hba data structure.
2107  * @vpd: pointer to the vital product data.
2108  * @len: length of the vital product data in bytes.
2109  *
2110  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2111  * an array of characters. In this routine, the ModelName, ProgramType, and
2112  * ModelDesc, etc. fields of the phba data structure will be populated.
2113  *
2114  * Return codes
2115  *   0 - pointer to the VPD passed in is NULL
2116  *   1 - success
2117  **/
2118 int
2119 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2120 {
2121         uint8_t lenlo, lenhi;
2122         int Length;
2123         int i, j;
2124         int finished = 0;
2125         int index = 0;
2126
2127         if (!vpd)
2128                 return 0;
2129
2130         /* Vital Product */
2131         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2132                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2133                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2134                         (uint32_t) vpd[3]);
2135         while (!finished && (index < (len - 4))) {
2136                 switch (vpd[index]) {
2137                 case 0x82:
2138                 case 0x91:
2139                         index += 1;
2140                         lenlo = vpd[index];
2141                         index += 1;
2142                         lenhi = vpd[index];
2143                         index += 1;
2144                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2145                         index += i;
2146                         break;
2147                 case 0x90:
2148                         index += 1;
2149                         lenlo = vpd[index];
2150                         index += 1;
2151                         lenhi = vpd[index];
2152                         index += 1;
2153                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2154                         if (Length > len - index)
2155                                 Length = len - index;
2156                         while (Length > 0) {
2157                         /* Look for Serial Number */
2158                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2159                                 index += 2;
2160                                 i = vpd[index];
2161                                 index += 1;
2162                                 j = 0;
2163                                 Length -= (3+i);
2164                                 while(i--) {
2165                                         phba->SerialNumber[j++] = vpd[index++];
2166                                         if (j == 31)
2167                                                 break;
2168                                 }
2169                                 phba->SerialNumber[j] = 0;
2170                                 continue;
2171                         }
2172                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2173                                 phba->vpd_flag |= VPD_MODEL_DESC;
2174                                 index += 2;
2175                                 i = vpd[index];
2176                                 index += 1;
2177                                 j = 0;
2178                                 Length -= (3+i);
2179                                 while(i--) {
2180                                         phba->ModelDesc[j++] = vpd[index++];
2181                                         if (j == 255)
2182                                                 break;
2183                                 }
2184                                 phba->ModelDesc[j] = 0;
2185                                 continue;
2186                         }
2187                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2188                                 phba->vpd_flag |= VPD_MODEL_NAME;
2189                                 index += 2;
2190                                 i = vpd[index];
2191                                 index += 1;
2192                                 j = 0;
2193                                 Length -= (3+i);
2194                                 while(i--) {
2195                                         phba->ModelName[j++] = vpd[index++];
2196                                         if (j == 79)
2197                                                 break;
2198                                 }
2199                                 phba->ModelName[j] = 0;
2200                                 continue;
2201                         }
2202                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2203                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2204                                 index += 2;
2205                                 i = vpd[index];
2206                                 index += 1;
2207                                 j = 0;
2208                                 Length -= (3+i);
2209                                 while(i--) {
2210                                         phba->ProgramType[j++] = vpd[index++];
2211                                         if (j == 255)
2212                                                 break;
2213                                 }
2214                                 phba->ProgramType[j] = 0;
2215                                 continue;
2216                         }
2217                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2218                                 phba->vpd_flag |= VPD_PORT;
2219                                 index += 2;
2220                                 i = vpd[index];
2221                                 index += 1;
2222                                 j = 0;
2223                                 Length -= (3+i);
2224                                 while(i--) {
2225                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2226                                             (phba->sli4_hba.pport_name_sta ==
2227                                              LPFC_SLI4_PPNAME_GET)) {
2228                                                 j++;
2229                                                 index++;
2230                                         } else
2231                                                 phba->Port[j++] = vpd[index++];
2232                                         if (j == 19)
2233                                                 break;
2234                                 }
2235                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2236                                     (phba->sli4_hba.pport_name_sta ==
2237                                      LPFC_SLI4_PPNAME_NON))
2238                                         phba->Port[j] = 0;
2239                                 continue;
2240                         }
2241                         else {
2242                                 index += 2;
2243                                 i = vpd[index];
2244                                 index += 1;
2245                                 index += i;
2246                                 Length -= (3 + i);
2247                         }
2248                 }
2249                 finished = 0;
2250                 break;
2251                 case 0x78:
2252                         finished = 1;
2253                         break;
2254                 default:
2255                         index ++;
2256                         break;
2257                 }
2258         }
2259
2260         return(1);
2261 }
2262
2263 /**
2264  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2265  * @phba: pointer to lpfc hba data structure.
2266  * @mdp: pointer to the data structure to hold the derived model name.
2267  * @descp: pointer to the data structure to hold the derived description.
2268  *
2269  * This routine retrieves HBA's description based on its registered PCI device
2270  * ID. The @descp passed into this function points to an array of 256 chars. It
2271  * shall be returned with the model name, maximum speed, and the host bus type.
2272  * The @mdp passed into this function points to an array of 80 chars. When the
2273  * function returns, the @mdp will be filled with the model name.
2274  **/
2275 static void
2276 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2277 {
2278         lpfc_vpd_t *vp;
2279         uint16_t dev_id = phba->pcidev->device;
2280         int max_speed;
2281         int GE = 0;
2282         int oneConnect = 0; /* default is not a oneConnect */
2283         struct {
2284                 char *name;
2285                 char *bus;
2286                 char *function;
2287         } m = {"<Unknown>", "", ""};
2288
2289         if (mdp && mdp[0] != '\0'
2290                 && descp && descp[0] != '\0')
2291                 return;
2292
2293         if (phba->lmt & LMT_64Gb)
2294                 max_speed = 64;
2295         else if (phba->lmt & LMT_32Gb)
2296                 max_speed = 32;
2297         else if (phba->lmt & LMT_16Gb)
2298                 max_speed = 16;
2299         else if (phba->lmt & LMT_10Gb)
2300                 max_speed = 10;
2301         else if (phba->lmt & LMT_8Gb)
2302                 max_speed = 8;
2303         else if (phba->lmt & LMT_4Gb)
2304                 max_speed = 4;
2305         else if (phba->lmt & LMT_2Gb)
2306                 max_speed = 2;
2307         else if (phba->lmt & LMT_1Gb)
2308                 max_speed = 1;
2309         else
2310                 max_speed = 0;
2311
2312         vp = &phba->vpd;
2313
2314         switch (dev_id) {
2315         case PCI_DEVICE_ID_FIREFLY:
2316                 m = (typeof(m)){"LP6000", "PCI",
2317                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2318                 break;
2319         case PCI_DEVICE_ID_SUPERFLY:
2320                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2321                         m = (typeof(m)){"LP7000", "PCI", ""};
2322                 else
2323                         m = (typeof(m)){"LP7000E", "PCI", ""};
2324                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2325                 break;
2326         case PCI_DEVICE_ID_DRAGONFLY:
2327                 m = (typeof(m)){"LP8000", "PCI",
2328                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2329                 break;
2330         case PCI_DEVICE_ID_CENTAUR:
2331                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2332                         m = (typeof(m)){"LP9002", "PCI", ""};
2333                 else
2334                         m = (typeof(m)){"LP9000", "PCI", ""};
2335                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2336                 break;
2337         case PCI_DEVICE_ID_RFLY:
2338                 m = (typeof(m)){"LP952", "PCI",
2339                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2340                 break;
2341         case PCI_DEVICE_ID_PEGASUS:
2342                 m = (typeof(m)){"LP9802", "PCI-X",
2343                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2344                 break;
2345         case PCI_DEVICE_ID_THOR:
2346                 m = (typeof(m)){"LP10000", "PCI-X",
2347                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2348                 break;
2349         case PCI_DEVICE_ID_VIPER:
2350                 m = (typeof(m)){"LPX1000",  "PCI-X",
2351                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2352                 break;
2353         case PCI_DEVICE_ID_PFLY:
2354                 m = (typeof(m)){"LP982", "PCI-X",
2355                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2356                 break;
2357         case PCI_DEVICE_ID_TFLY:
2358                 m = (typeof(m)){"LP1050", "PCI-X",
2359                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2360                 break;
2361         case PCI_DEVICE_ID_HELIOS:
2362                 m = (typeof(m)){"LP11000", "PCI-X2",
2363                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2364                 break;
2365         case PCI_DEVICE_ID_HELIOS_SCSP:
2366                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2367                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2368                 break;
2369         case PCI_DEVICE_ID_HELIOS_DCSP:
2370                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2371                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2372                 break;
2373         case PCI_DEVICE_ID_NEPTUNE:
2374                 m = (typeof(m)){"LPe1000", "PCIe",
2375                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2376                 break;
2377         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2378                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2379                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2380                 break;
2381         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2382                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2383                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2384                 break;
2385         case PCI_DEVICE_ID_BMID:
2386                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2387                 break;
2388         case PCI_DEVICE_ID_BSMB:
2389                 m = (typeof(m)){"LP111", "PCI-X2",
2390                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2391                 break;
2392         case PCI_DEVICE_ID_ZEPHYR:
2393                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2394                 break;
2395         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2396                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2397                 break;
2398         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2399                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2400                 GE = 1;
2401                 break;
2402         case PCI_DEVICE_ID_ZMID:
2403                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2404                 break;
2405         case PCI_DEVICE_ID_ZSMB:
2406                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2407                 break;
2408         case PCI_DEVICE_ID_LP101:
2409                 m = (typeof(m)){"LP101", "PCI-X",
2410                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2411                 break;
2412         case PCI_DEVICE_ID_LP10000S:
2413                 m = (typeof(m)){"LP10000-S", "PCI",
2414                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2415                 break;
2416         case PCI_DEVICE_ID_LP11000S:
2417                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2418                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2419                 break;
2420         case PCI_DEVICE_ID_LPE11000S:
2421                 m = (typeof(m)){"LPe11000-S", "PCIe",
2422                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2423                 break;
2424         case PCI_DEVICE_ID_SAT:
2425                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2426                 break;
2427         case PCI_DEVICE_ID_SAT_MID:
2428                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2429                 break;
2430         case PCI_DEVICE_ID_SAT_SMB:
2431                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2432                 break;
2433         case PCI_DEVICE_ID_SAT_DCSP:
2434                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2435                 break;
2436         case PCI_DEVICE_ID_SAT_SCSP:
2437                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2438                 break;
2439         case PCI_DEVICE_ID_SAT_S:
2440                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2441                 break;
2442         case PCI_DEVICE_ID_HORNET:
2443                 m = (typeof(m)){"LP21000", "PCIe",
2444                                 "Obsolete, Unsupported FCoE Adapter"};
2445                 GE = 1;
2446                 break;
2447         case PCI_DEVICE_ID_PROTEUS_VF:
2448                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2449                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2450                 break;
2451         case PCI_DEVICE_ID_PROTEUS_PF:
2452                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2453                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2454                 break;
2455         case PCI_DEVICE_ID_PROTEUS_S:
2456                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2457                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2458                 break;
2459         case PCI_DEVICE_ID_TIGERSHARK:
2460                 oneConnect = 1;
2461                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2462                 break;
2463         case PCI_DEVICE_ID_TOMCAT:
2464                 oneConnect = 1;
2465                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2466                 break;
2467         case PCI_DEVICE_ID_FALCON:
2468                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2469                                 "EmulexSecure Fibre"};
2470                 break;
2471         case PCI_DEVICE_ID_BALIUS:
2472                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2473                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2474                 break;
2475         case PCI_DEVICE_ID_LANCER_FC:
2476                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2477                 break;
2478         case PCI_DEVICE_ID_LANCER_FC_VF:
2479                 m = (typeof(m)){"LPe16000", "PCIe",
2480                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2481                 break;
2482         case PCI_DEVICE_ID_LANCER_FCOE:
2483                 oneConnect = 1;
2484                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2485                 break;
2486         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2487                 oneConnect = 1;
2488                 m = (typeof(m)){"OCe15100", "PCIe",
2489                                 "Obsolete, Unsupported FCoE"};
2490                 break;
2491         case PCI_DEVICE_ID_LANCER_G6_FC:
2492                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2493                 break;
2494         case PCI_DEVICE_ID_LANCER_G7_FC:
2495                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2496                 break;
2497         case PCI_DEVICE_ID_SKYHAWK:
2498         case PCI_DEVICE_ID_SKYHAWK_VF:
2499                 oneConnect = 1;
2500                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2501                 break;
2502         default:
2503                 m = (typeof(m)){"Unknown", "", ""};
2504                 break;
2505         }
2506
2507         if (mdp && mdp[0] == '\0')
2508                 snprintf(mdp, 79,"%s", m.name);
2509         /*
2510          * oneConnect hba requires special processing, they are all initiators
2511          * and we put the port number on the end
2512          */
2513         if (descp && descp[0] == '\0') {
2514                 if (oneConnect)
2515                         snprintf(descp, 255,
2516                                 "Emulex OneConnect %s, %s Initiator %s",
2517                                 m.name, m.function,
2518                                 phba->Port);
2519                 else if (max_speed == 0)
2520                         snprintf(descp, 255,
2521                                 "Emulex %s %s %s",
2522                                 m.name, m.bus, m.function);
2523                 else
2524                         snprintf(descp, 255,
2525                                 "Emulex %s %d%s %s %s",
2526                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2527                                 m.bus, m.function);
2528         }
2529 }
2530
2531 /**
2532  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2533  * @phba: pointer to lpfc hba data structure.
2534  * @pring: pointer to a IOCB ring.
2535  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2536  *
2537  * This routine posts a given number of IOCBs with the associated DMA buffer
2538  * descriptors specified by the cnt argument to the given IOCB ring.
2539  *
2540  * Return codes
2541  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2542  **/
2543 int
2544 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2545 {
2546         IOCB_t *icmd;
2547         struct lpfc_iocbq *iocb;
2548         struct lpfc_dmabuf *mp1, *mp2;
2549
2550         cnt += pring->missbufcnt;
2551
2552         /* While there are buffers to post */
2553         while (cnt > 0) {
2554                 /* Allocate buffer for  command iocb */
2555                 iocb = lpfc_sli_get_iocbq(phba);
2556                 if (iocb == NULL) {
2557                         pring->missbufcnt = cnt;
2558                         return cnt;
2559                 }
2560                 icmd = &iocb->iocb;
2561
2562                 /* 2 buffers can be posted per command */
2563                 /* Allocate buffer to post */
2564                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2565                 if (mp1)
2566                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2567                 if (!mp1 || !mp1->virt) {
2568                         kfree(mp1);
2569                         lpfc_sli_release_iocbq(phba, iocb);
2570                         pring->missbufcnt = cnt;
2571                         return cnt;
2572                 }
2573
2574                 INIT_LIST_HEAD(&mp1->list);
2575                 /* Allocate buffer to post */
2576                 if (cnt > 1) {
2577                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2578                         if (mp2)
2579                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2580                                                             &mp2->phys);
2581                         if (!mp2 || !mp2->virt) {
2582                                 kfree(mp2);
2583                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2584                                 kfree(mp1);
2585                                 lpfc_sli_release_iocbq(phba, iocb);
2586                                 pring->missbufcnt = cnt;
2587                                 return cnt;
2588                         }
2589
2590                         INIT_LIST_HEAD(&mp2->list);
2591                 } else {
2592                         mp2 = NULL;
2593                 }
2594
2595                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2596                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2597                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2598                 icmd->ulpBdeCount = 1;
2599                 cnt--;
2600                 if (mp2) {
2601                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2602                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2603                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2604                         cnt--;
2605                         icmd->ulpBdeCount = 2;
2606                 }
2607
2608                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2609                 icmd->ulpLe = 1;
2610
2611                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2612                     IOCB_ERROR) {
2613                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2614                         kfree(mp1);
2615                         cnt++;
2616                         if (mp2) {
2617                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2618                                 kfree(mp2);
2619                                 cnt++;
2620                         }
2621                         lpfc_sli_release_iocbq(phba, iocb);
2622                         pring->missbufcnt = cnt;
2623                         return cnt;
2624                 }
2625                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2626                 if (mp2)
2627                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2628         }
2629         pring->missbufcnt = 0;
2630         return 0;
2631 }
2632
2633 /**
2634  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2635  * @phba: pointer to lpfc hba data structure.
2636  *
2637  * This routine posts initial receive IOCB buffers to the ELS ring. The
2638  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2639  * set to 64 IOCBs. SLI3 only.
2640  *
2641  * Return codes
2642  *   0 - success (currently always success)
2643  **/
2644 static int
2645 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2646 {
2647         struct lpfc_sli *psli = &phba->sli;
2648
2649         /* Ring 0, ELS / CT buffers */
2650         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2651         /* Ring 2 - FCP no buffers needed */
2652
2653         return 0;
2654 }
2655
2656 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2657
2658 /**
2659  * lpfc_sha_init - Set up initial array of hash table entries
2660  * @HashResultPointer: pointer to an array as hash table.
2661  *
2662  * This routine sets up the initial values to the array of hash table entries
2663  * for the LC HBAs.
2664  **/
2665 static void
2666 lpfc_sha_init(uint32_t * HashResultPointer)
2667 {
2668         HashResultPointer[0] = 0x67452301;
2669         HashResultPointer[1] = 0xEFCDAB89;
2670         HashResultPointer[2] = 0x98BADCFE;
2671         HashResultPointer[3] = 0x10325476;
2672         HashResultPointer[4] = 0xC3D2E1F0;
2673 }
2674
2675 /**
2676  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2677  * @HashResultPointer: pointer to an initial/result hash table.
2678  * @HashWorkingPointer: pointer to an working hash table.
2679  *
2680  * This routine iterates an initial hash table pointed by @HashResultPointer
2681  * with the values from the working hash table pointeed by @HashWorkingPointer.
2682  * The results are putting back to the initial hash table, returned through
2683  * the @HashResultPointer as the result hash table.
2684  **/
2685 static void
2686 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2687 {
2688         int t;
2689         uint32_t TEMP;
2690         uint32_t A, B, C, D, E;
2691         t = 16;
2692         do {
2693                 HashWorkingPointer[t] =
2694                     S(1,
2695                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2696                                                                      8] ^
2697                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2698         } while (++t <= 79);
2699         t = 0;
2700         A = HashResultPointer[0];
2701         B = HashResultPointer[1];
2702         C = HashResultPointer[2];
2703         D = HashResultPointer[3];
2704         E = HashResultPointer[4];
2705
2706         do {
2707                 if (t < 20) {
2708                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2709                 } else if (t < 40) {
2710                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2711                 } else if (t < 60) {
2712                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2713                 } else {
2714                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2715                 }
2716                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2717                 E = D;
2718                 D = C;
2719                 C = S(30, B);
2720                 B = A;
2721                 A = TEMP;
2722         } while (++t <= 79);
2723
2724         HashResultPointer[0] += A;
2725         HashResultPointer[1] += B;
2726         HashResultPointer[2] += C;
2727         HashResultPointer[3] += D;
2728         HashResultPointer[4] += E;
2729
2730 }
2731
2732 /**
2733  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2734  * @RandomChallenge: pointer to the entry of host challenge random number array.
2735  * @HashWorking: pointer to the entry of the working hash array.
2736  *
2737  * This routine calculates the working hash array referred by @HashWorking
2738  * from the challenge random numbers associated with the host, referred by
2739  * @RandomChallenge. The result is put into the entry of the working hash
2740  * array and returned by reference through @HashWorking.
2741  **/
2742 static void
2743 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2744 {
2745         *HashWorking = (*RandomChallenge ^ *HashWorking);
2746 }
2747
2748 /**
2749  * lpfc_hba_init - Perform special handling for LC HBA initialization
2750  * @phba: pointer to lpfc hba data structure.
2751  * @hbainit: pointer to an array of unsigned 32-bit integers.
2752  *
2753  * This routine performs the special handling for LC HBA initialization.
2754  **/
2755 void
2756 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2757 {
2758         int t;
2759         uint32_t *HashWorking;
2760         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2761
2762         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2763         if (!HashWorking)
2764                 return;
2765
2766         HashWorking[0] = HashWorking[78] = *pwwnn++;
2767         HashWorking[1] = HashWorking[79] = *pwwnn;
2768
2769         for (t = 0; t < 7; t++)
2770                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2771
2772         lpfc_sha_init(hbainit);
2773         lpfc_sha_iterate(hbainit, HashWorking);
2774         kfree(HashWorking);
2775 }
2776
2777 /**
2778  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2779  * @vport: pointer to a virtual N_Port data structure.
2780  *
2781  * This routine performs the necessary cleanups before deleting the @vport.
2782  * It invokes the discovery state machine to perform necessary state
2783  * transitions and to release the ndlps associated with the @vport. Note,
2784  * the physical port is treated as @vport 0.
2785  **/
2786 void
2787 lpfc_cleanup(struct lpfc_vport *vport)
2788 {
2789         struct lpfc_hba   *phba = vport->phba;
2790         struct lpfc_nodelist *ndlp, *next_ndlp;
2791         int i = 0;
2792
2793         if (phba->link_state > LPFC_LINK_DOWN)
2794                 lpfc_port_link_failure(vport);
2795
2796         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2797                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2798                         ndlp = lpfc_enable_node(vport, ndlp,
2799                                                 NLP_STE_UNUSED_NODE);
2800                         if (!ndlp)
2801                                 continue;
2802                         spin_lock_irq(&phba->ndlp_lock);
2803                         NLP_SET_FREE_REQ(ndlp);
2804                         spin_unlock_irq(&phba->ndlp_lock);
2805                         /* Trigger the release of the ndlp memory */
2806                         lpfc_nlp_put(ndlp);
2807                         continue;
2808                 }
2809                 spin_lock_irq(&phba->ndlp_lock);
2810                 if (NLP_CHK_FREE_REQ(ndlp)) {
2811                         /* The ndlp should not be in memory free mode already */
2812                         spin_unlock_irq(&phba->ndlp_lock);
2813                         continue;
2814                 } else
2815                         /* Indicate request for freeing ndlp memory */
2816                         NLP_SET_FREE_REQ(ndlp);
2817                 spin_unlock_irq(&phba->ndlp_lock);
2818
2819                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2820                     ndlp->nlp_DID == Fabric_DID) {
2821                         /* Just free up ndlp with Fabric_DID for vports */
2822                         lpfc_nlp_put(ndlp);
2823                         continue;
2824                 }
2825
2826                 /* take care of nodes in unused state before the state
2827                  * machine taking action.
2828                  */
2829                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2830                         lpfc_nlp_put(ndlp);
2831                         continue;
2832                 }
2833
2834                 if (ndlp->nlp_type & NLP_FABRIC)
2835                         lpfc_disc_state_machine(vport, ndlp, NULL,
2836                                         NLP_EVT_DEVICE_RECOVERY);
2837
2838                 lpfc_disc_state_machine(vport, ndlp, NULL,
2839                                              NLP_EVT_DEVICE_RM);
2840         }
2841
2842         /* At this point, ALL ndlp's should be gone
2843          * because of the previous NLP_EVT_DEVICE_RM.
2844          * Lets wait for this to happen, if needed.
2845          */
2846         while (!list_empty(&vport->fc_nodes)) {
2847                 if (i++ > 3000) {
2848                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2849                                 "0233 Nodelist not empty\n");
2850                         list_for_each_entry_safe(ndlp, next_ndlp,
2851                                                 &vport->fc_nodes, nlp_listp) {
2852                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2853                                                 LOG_NODE,
2854                                                 "0282 did:x%x ndlp:x%p "
2855                                                 "usgmap:x%x refcnt:%d\n",
2856                                                 ndlp->nlp_DID, (void *)ndlp,
2857                                                 ndlp->nlp_usg_map,
2858                                                 kref_read(&ndlp->kref));
2859                         }
2860                         break;
2861                 }
2862
2863                 /* Wait for any activity on ndlps to settle */
2864                 msleep(10);
2865         }
2866         lpfc_cleanup_vports_rrqs(vport, NULL);
2867 }
2868
2869 /**
2870  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2871  * @vport: pointer to a virtual N_Port data structure.
2872  *
2873  * This routine stops all the timers associated with a @vport. This function
2874  * is invoked before disabling or deleting a @vport. Note that the physical
2875  * port is treated as @vport 0.
2876  **/
2877 void
2878 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2879 {
2880         del_timer_sync(&vport->els_tmofunc);
2881         del_timer_sync(&vport->delayed_disc_tmo);
2882         lpfc_can_disctmo(vport);
2883         return;
2884 }
2885
2886 /**
2887  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2888  * @phba: pointer to lpfc hba data structure.
2889  *
2890  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2891  * caller of this routine should already hold the host lock.
2892  **/
2893 void
2894 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2895 {
2896         /* Clear pending FCF rediscovery wait flag */
2897         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2898
2899         /* Now, try to stop the timer */
2900         del_timer(&phba->fcf.redisc_wait);
2901 }
2902
2903 /**
2904  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2905  * @phba: pointer to lpfc hba data structure.
2906  *
2907  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2908  * checks whether the FCF rediscovery wait timer is pending with the host
2909  * lock held before proceeding with disabling the timer and clearing the
2910  * wait timer pendig flag.
2911  **/
2912 void
2913 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2914 {
2915         spin_lock_irq(&phba->hbalock);
2916         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2917                 /* FCF rediscovery timer already fired or stopped */
2918                 spin_unlock_irq(&phba->hbalock);
2919                 return;
2920         }
2921         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2922         /* Clear failover in progress flags */
2923         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2924         spin_unlock_irq(&phba->hbalock);
2925 }
2926
2927 /**
2928  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2929  * @phba: pointer to lpfc hba data structure.
2930  *
2931  * This routine stops all the timers associated with a HBA. This function is
2932  * invoked before either putting a HBA offline or unloading the driver.
2933  **/
2934 void
2935 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2936 {
2937         lpfc_stop_vport_timers(phba->pport);
2938         del_timer_sync(&phba->sli.mbox_tmo);
2939         del_timer_sync(&phba->fabric_block_timer);
2940         del_timer_sync(&phba->eratt_poll);
2941         del_timer_sync(&phba->hb_tmofunc);
2942         if (phba->sli_rev == LPFC_SLI_REV4) {
2943                 del_timer_sync(&phba->rrq_tmr);
2944                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2945         }
2946         phba->hb_outstanding = 0;
2947
2948         switch (phba->pci_dev_grp) {
2949         case LPFC_PCI_DEV_LP:
2950                 /* Stop any LightPulse device specific driver timers */
2951                 del_timer_sync(&phba->fcp_poll_timer);
2952                 break;
2953         case LPFC_PCI_DEV_OC:
2954                 /* Stop any OneConnect device sepcific driver timers */
2955                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2956                 break;
2957         default:
2958                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2959                                 "0297 Invalid device group (x%x)\n",
2960                                 phba->pci_dev_grp);
2961                 break;
2962         }
2963         return;
2964 }
2965
2966 /**
2967  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2968  * @phba: pointer to lpfc hba data structure.
2969  *
2970  * This routine marks a HBA's management interface as blocked. Once the HBA's
2971  * management interface is marked as blocked, all the user space access to
2972  * the HBA, whether they are from sysfs interface or libdfc interface will
2973  * all be blocked. The HBA is set to block the management interface when the
2974  * driver prepares the HBA interface for online or offline.
2975  **/
2976 static void
2977 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2978 {
2979         unsigned long iflag;
2980         uint8_t actcmd = MBX_HEARTBEAT;
2981         unsigned long timeout;
2982
2983         spin_lock_irqsave(&phba->hbalock, iflag);
2984         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2985         spin_unlock_irqrestore(&phba->hbalock, iflag);
2986         if (mbx_action == LPFC_MBX_NO_WAIT)
2987                 return;
2988         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2989         spin_lock_irqsave(&phba->hbalock, iflag);
2990         if (phba->sli.mbox_active) {
2991                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2992                 /* Determine how long we might wait for the active mailbox
2993                  * command to be gracefully completed by firmware.
2994                  */
2995                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2996                                 phba->sli.mbox_active) * 1000) + jiffies;
2997         }
2998         spin_unlock_irqrestore(&phba->hbalock, iflag);
2999
3000         /* Wait for the outstnading mailbox command to complete */
3001         while (phba->sli.mbox_active) {
3002                 /* Check active mailbox complete status every 2ms */
3003                 msleep(2);
3004                 if (time_after(jiffies, timeout)) {
3005                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3006                                 "2813 Mgmt IO is Blocked %x "
3007                                 "- mbox cmd %x still active\n",
3008                                 phba->sli.sli_flag, actcmd);
3009                         break;
3010                 }
3011         }
3012 }
3013
3014 /**
3015  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3016  * @phba: pointer to lpfc hba data structure.
3017  *
3018  * Allocate RPIs for all active remote nodes. This is needed whenever
3019  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3020  * is to fixup the temporary rpi assignments.
3021  **/
3022 void
3023 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3024 {
3025         struct lpfc_nodelist  *ndlp, *next_ndlp;
3026         struct lpfc_vport **vports;
3027         int i, rpi;
3028         unsigned long flags;
3029
3030         if (phba->sli_rev != LPFC_SLI_REV4)
3031                 return;
3032
3033         vports = lpfc_create_vport_work_array(phba);
3034         if (vports == NULL)
3035                 return;
3036
3037         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3038                 if (vports[i]->load_flag & FC_UNLOADING)
3039                         continue;
3040
3041                 list_for_each_entry_safe(ndlp, next_ndlp,
3042                                          &vports[i]->fc_nodes,
3043                                          nlp_listp) {
3044                         if (!NLP_CHK_NODE_ACT(ndlp))
3045                                 continue;
3046                         rpi = lpfc_sli4_alloc_rpi(phba);
3047                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3048                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3049                                 NLP_CLR_NODE_ACT(ndlp);
3050                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3051                                 continue;
3052                         }
3053                         ndlp->nlp_rpi = rpi;
3054                         lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3055                                          "0009 rpi:%x DID:%x "
3056                                          "flg:%x map:%x %p\n", ndlp->nlp_rpi,
3057                                          ndlp->nlp_DID, ndlp->nlp_flag,
3058                                          ndlp->nlp_usg_map, ndlp);
3059                 }
3060         }
3061         lpfc_destroy_vport_work_array(phba, vports);
3062 }
3063
3064 /**
3065  * lpfc_online - Initialize and bring a HBA online
3066  * @phba: pointer to lpfc hba data structure.
3067  *
3068  * This routine initializes the HBA and brings a HBA online. During this
3069  * process, the management interface is blocked to prevent user space access
3070  * to the HBA interfering with the driver initialization.
3071  *
3072  * Return codes
3073  *   0 - successful
3074  *   1 - failed
3075  **/
3076 int
3077 lpfc_online(struct lpfc_hba *phba)
3078 {
3079         struct lpfc_vport *vport;
3080         struct lpfc_vport **vports;
3081         int i, error = 0;
3082         bool vpis_cleared = false;
3083
3084         if (!phba)
3085                 return 0;
3086         vport = phba->pport;
3087
3088         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3089                 return 0;
3090
3091         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3092                         "0458 Bring Adapter online\n");
3093
3094         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3095
3096         if (phba->sli_rev == LPFC_SLI_REV4) {
3097                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3098                         lpfc_unblock_mgmt_io(phba);
3099                         return 1;
3100                 }
3101                 spin_lock_irq(&phba->hbalock);
3102                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3103                         vpis_cleared = true;
3104                 spin_unlock_irq(&phba->hbalock);
3105
3106                 /* Reestablish the local initiator port.
3107                  * The offline process destroyed the previous lport.
3108                  */
3109                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3110                                 !phba->nvmet_support) {
3111                         error = lpfc_nvme_create_localport(phba->pport);
3112                         if (error)
3113                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3114                                         "6132 NVME restore reg failed "
3115                                         "on nvmei error x%x\n", error);
3116                 }
3117         } else {
3118                 lpfc_sli_queue_init(phba);
3119                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3120                         lpfc_unblock_mgmt_io(phba);
3121                         return 1;
3122                 }
3123         }
3124
3125         vports = lpfc_create_vport_work_array(phba);
3126         if (vports != NULL) {
3127                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3128                         struct Scsi_Host *shost;
3129                         shost = lpfc_shost_from_vport(vports[i]);
3130                         spin_lock_irq(shost->host_lock);
3131                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3132                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3133                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3134                         if (phba->sli_rev == LPFC_SLI_REV4) {
3135                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3136                                 if ((vpis_cleared) &&
3137                                     (vports[i]->port_type !=
3138                                         LPFC_PHYSICAL_PORT))
3139                                         vports[i]->vpi = 0;
3140                         }
3141                         spin_unlock_irq(shost->host_lock);
3142                 }
3143         }
3144         lpfc_destroy_vport_work_array(phba, vports);
3145
3146         lpfc_unblock_mgmt_io(phba);
3147         return 0;
3148 }
3149
3150 /**
3151  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3152  * @phba: pointer to lpfc hba data structure.
3153  *
3154  * This routine marks a HBA's management interface as not blocked. Once the
3155  * HBA's management interface is marked as not blocked, all the user space
3156  * access to the HBA, whether they are from sysfs interface or libdfc
3157  * interface will be allowed. The HBA is set to block the management interface
3158  * when the driver prepares the HBA interface for online or offline and then
3159  * set to unblock the management interface afterwards.
3160  **/
3161 void
3162 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3163 {
3164         unsigned long iflag;
3165
3166         spin_lock_irqsave(&phba->hbalock, iflag);
3167         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3168         spin_unlock_irqrestore(&phba->hbalock, iflag);
3169 }
3170
3171 /**
3172  * lpfc_offline_prep - Prepare a HBA to be brought offline
3173  * @phba: pointer to lpfc hba data structure.
3174  *
3175  * This routine is invoked to prepare a HBA to be brought offline. It performs
3176  * unregistration login to all the nodes on all vports and flushes the mailbox
3177  * queue to make it ready to be brought offline.
3178  **/
3179 void
3180 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3181 {
3182         struct lpfc_vport *vport = phba->pport;
3183         struct lpfc_nodelist  *ndlp, *next_ndlp;
3184         struct lpfc_vport **vports;
3185         struct Scsi_Host *shost;
3186         int i;
3187
3188         if (vport->fc_flag & FC_OFFLINE_MODE)
3189                 return;
3190
3191         lpfc_block_mgmt_io(phba, mbx_action);
3192
3193         lpfc_linkdown(phba);
3194
3195         /* Issue an unreg_login to all nodes on all vports */
3196         vports = lpfc_create_vport_work_array(phba);
3197         if (vports != NULL) {
3198                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3199                         if (vports[i]->load_flag & FC_UNLOADING)
3200                                 continue;
3201                         shost = lpfc_shost_from_vport(vports[i]);
3202                         spin_lock_irq(shost->host_lock);
3203                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3204                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3205                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3206                         spin_unlock_irq(shost->host_lock);
3207
3208                         shost = lpfc_shost_from_vport(vports[i]);
3209                         list_for_each_entry_safe(ndlp, next_ndlp,
3210                                                  &vports[i]->fc_nodes,
3211                                                  nlp_listp) {
3212                                 if (!NLP_CHK_NODE_ACT(ndlp))
3213                                         continue;
3214                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3215                                         continue;
3216                                 if (ndlp->nlp_type & NLP_FABRIC) {
3217                                         lpfc_disc_state_machine(vports[i], ndlp,
3218                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3219                                         lpfc_disc_state_machine(vports[i], ndlp,
3220                                                 NULL, NLP_EVT_DEVICE_RM);
3221                                 }
3222                                 spin_lock_irq(shost->host_lock);
3223                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3224                                 spin_unlock_irq(shost->host_lock);
3225                                 /*
3226                                  * Whenever an SLI4 port goes offline, free the
3227                                  * RPI. Get a new RPI when the adapter port
3228                                  * comes back online.
3229                                  */
3230                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3231                                         lpfc_printf_vlog(ndlp->vport,
3232                                                          KERN_INFO, LOG_NODE,
3233                                                          "0011 lpfc_offline: "
3234                                                          "ndlp:x%p did %x "
3235                                                          "usgmap:x%x rpi:%x\n",
3236                                                          ndlp, ndlp->nlp_DID,
3237                                                          ndlp->nlp_usg_map,
3238                                                          ndlp->nlp_rpi);
3239
3240                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3241                                 }
3242                                 lpfc_unreg_rpi(vports[i], ndlp);
3243                         }
3244                 }
3245         }
3246         lpfc_destroy_vport_work_array(phba, vports);
3247
3248         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3249
3250         if (phba->wq)
3251                 flush_workqueue(phba->wq);
3252 }
3253
3254 /**
3255  * lpfc_offline - Bring a HBA offline
3256  * @phba: pointer to lpfc hba data structure.
3257  *
3258  * This routine actually brings a HBA offline. It stops all the timers
3259  * associated with the HBA, brings down the SLI layer, and eventually
3260  * marks the HBA as in offline state for the upper layer protocol.
3261  **/
3262 void
3263 lpfc_offline(struct lpfc_hba *phba)
3264 {
3265         struct Scsi_Host  *shost;
3266         struct lpfc_vport **vports;
3267         int i;
3268
3269         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3270                 return;
3271
3272         /* stop port and all timers associated with this hba */
3273         lpfc_stop_port(phba);
3274
3275         /* Tear down the local and target port registrations.  The
3276          * nvme transports need to cleanup.
3277          */
3278         lpfc_nvmet_destroy_targetport(phba);
3279         lpfc_nvme_destroy_localport(phba->pport);
3280
3281         vports = lpfc_create_vport_work_array(phba);
3282         if (vports != NULL)
3283                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3284                         lpfc_stop_vport_timers(vports[i]);
3285         lpfc_destroy_vport_work_array(phba, vports);
3286         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3287                         "0460 Bring Adapter offline\n");
3288         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3289            now.  */
3290         lpfc_sli_hba_down(phba);
3291         spin_lock_irq(&phba->hbalock);
3292         phba->work_ha = 0;
3293         spin_unlock_irq(&phba->hbalock);
3294         vports = lpfc_create_vport_work_array(phba);
3295         if (vports != NULL)
3296                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3297                         shost = lpfc_shost_from_vport(vports[i]);
3298                         spin_lock_irq(shost->host_lock);
3299                         vports[i]->work_port_events = 0;
3300                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3301                         spin_unlock_irq(shost->host_lock);
3302                 }
3303         lpfc_destroy_vport_work_array(phba, vports);
3304 }
3305
3306 /**
3307  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3308  * @phba: pointer to lpfc hba data structure.
3309  *
3310  * This routine is to free all the SCSI buffers and IOCBs from the driver
3311  * list back to kernel. It is called from lpfc_pci_remove_one to free
3312  * the internal resources before the device is removed from the system.
3313  **/
3314 static void
3315 lpfc_scsi_free(struct lpfc_hba *phba)
3316 {
3317         struct lpfc_scsi_buf *sb, *sb_next;
3318
3319         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3320                 return;
3321
3322         spin_lock_irq(&phba->hbalock);
3323
3324         /* Release all the lpfc_scsi_bufs maintained by this host. */
3325
3326         spin_lock(&phba->scsi_buf_list_put_lock);
3327         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3328                                  list) {
3329                 list_del(&sb->list);
3330                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3331                               sb->dma_handle);
3332                 kfree(sb);
3333                 phba->total_scsi_bufs--;
3334         }
3335         spin_unlock(&phba->scsi_buf_list_put_lock);
3336
3337         spin_lock(&phba->scsi_buf_list_get_lock);
3338         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3339                                  list) {
3340                 list_del(&sb->list);
3341                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3342                               sb->dma_handle);
3343                 kfree(sb);
3344                 phba->total_scsi_bufs--;
3345         }
3346         spin_unlock(&phba->scsi_buf_list_get_lock);
3347         spin_unlock_irq(&phba->hbalock);
3348 }
3349 /**
3350  * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists
3351  * @phba: pointer to lpfc hba data structure.
3352  *
3353  * This routine is to free all the NVME buffers and IOCBs from the driver
3354  * list back to kernel. It is called from lpfc_pci_remove_one to free
3355  * the internal resources before the device is removed from the system.
3356  **/
3357 static void
3358 lpfc_nvme_free(struct lpfc_hba *phba)
3359 {
3360         struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
3361
3362         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3363                 return;
3364
3365         spin_lock_irq(&phba->hbalock);
3366
3367         /* Release all the lpfc_nvme_bufs maintained by this host. */
3368         spin_lock(&phba->nvme_buf_list_put_lock);
3369         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3370                                  &phba->lpfc_nvme_buf_list_put, list) {
3371                 list_del(&lpfc_ncmd->list);
3372                 phba->put_nvme_bufs--;
3373                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3374                               lpfc_ncmd->dma_handle);
3375                 kfree(lpfc_ncmd);
3376                 phba->total_nvme_bufs--;
3377         }
3378         spin_unlock(&phba->nvme_buf_list_put_lock);
3379
3380         spin_lock(&phba->nvme_buf_list_get_lock);
3381         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3382                                  &phba->lpfc_nvme_buf_list_get, list) {
3383                 list_del(&lpfc_ncmd->list);
3384                 phba->get_nvme_bufs--;
3385                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3386                               lpfc_ncmd->dma_handle);
3387                 kfree(lpfc_ncmd);
3388                 phba->total_nvme_bufs--;
3389         }
3390         spin_unlock(&phba->nvme_buf_list_get_lock);
3391         spin_unlock_irq(&phba->hbalock);
3392 }
3393 /**
3394  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3395  * @phba: pointer to lpfc hba data structure.
3396  *
3397  * This routine first calculates the sizes of the current els and allocated
3398  * scsi sgl lists, and then goes through all sgls to updates the physical
3399  * XRIs assigned due to port function reset. During port initialization, the
3400  * current els and allocated scsi sgl lists are 0s.
3401  *
3402  * Return codes
3403  *   0 - successful (for now, it always returns 0)
3404  **/
3405 int
3406 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3407 {
3408         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3409         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3410         LIST_HEAD(els_sgl_list);
3411         int rc;
3412
3413         /*
3414          * update on pci function's els xri-sgl list
3415          */
3416         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3417
3418         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3419                 /* els xri-sgl expanded */
3420                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3421                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3422                                 "3157 ELS xri-sgl count increased from "
3423                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3424                                 els_xri_cnt);
3425                 /* allocate the additional els sgls */
3426                 for (i = 0; i < xri_cnt; i++) {
3427                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3428                                              GFP_KERNEL);
3429                         if (sglq_entry == NULL) {
3430                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3431                                                 "2562 Failure to allocate an "
3432                                                 "ELS sgl entry:%d\n", i);
3433                                 rc = -ENOMEM;
3434                                 goto out_free_mem;
3435                         }
3436                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3437                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3438                                                            &sglq_entry->phys);
3439                         if (sglq_entry->virt == NULL) {
3440                                 kfree(sglq_entry);
3441                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3442                                                 "2563 Failure to allocate an "
3443                                                 "ELS mbuf:%d\n", i);
3444                                 rc = -ENOMEM;
3445                                 goto out_free_mem;
3446                         }
3447                         sglq_entry->sgl = sglq_entry->virt;
3448                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3449                         sglq_entry->state = SGL_FREED;
3450                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3451                 }
3452                 spin_lock_irq(&phba->hbalock);
3453                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3454                 list_splice_init(&els_sgl_list,
3455                                  &phba->sli4_hba.lpfc_els_sgl_list);
3456                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3457                 spin_unlock_irq(&phba->hbalock);
3458         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3459                 /* els xri-sgl shrinked */
3460                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3461                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3462                                 "3158 ELS xri-sgl count decreased from "
3463                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3464                                 els_xri_cnt);
3465                 spin_lock_irq(&phba->hbalock);
3466                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3467                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3468                                  &els_sgl_list);
3469                 /* release extra els sgls from list */
3470                 for (i = 0; i < xri_cnt; i++) {
3471                         list_remove_head(&els_sgl_list,
3472                                          sglq_entry, struct lpfc_sglq, list);
3473                         if (sglq_entry) {
3474                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3475                                                  sglq_entry->phys);
3476                                 kfree(sglq_entry);
3477                         }
3478                 }
3479                 list_splice_init(&els_sgl_list,
3480                                  &phba->sli4_hba.lpfc_els_sgl_list);
3481                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3482                 spin_unlock_irq(&phba->hbalock);
3483         } else
3484                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3485                                 "3163 ELS xri-sgl count unchanged: %d\n",
3486                                 els_xri_cnt);
3487         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3488
3489         /* update xris to els sgls on the list */
3490         sglq_entry = NULL;
3491         sglq_entry_next = NULL;
3492         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3493                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3494                 lxri = lpfc_sli4_next_xritag(phba);
3495                 if (lxri == NO_XRI) {
3496                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3497                                         "2400 Failed to allocate xri for "
3498                                         "ELS sgl\n");
3499                         rc = -ENOMEM;
3500                         goto out_free_mem;
3501                 }
3502                 sglq_entry->sli4_lxritag = lxri;
3503                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3504         }
3505         return 0;
3506
3507 out_free_mem:
3508         lpfc_free_els_sgl_list(phba);
3509         return rc;
3510 }
3511
3512 /**
3513  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3514  * @phba: pointer to lpfc hba data structure.
3515  *
3516  * This routine first calculates the sizes of the current els and allocated
3517  * scsi sgl lists, and then goes through all sgls to updates the physical
3518  * XRIs assigned due to port function reset. During port initialization, the
3519  * current els and allocated scsi sgl lists are 0s.
3520  *
3521  * Return codes
3522  *   0 - successful (for now, it always returns 0)
3523  **/
3524 int
3525 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3526 {
3527         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3528         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3529         uint16_t nvmet_xri_cnt;
3530         LIST_HEAD(nvmet_sgl_list);
3531         int rc;
3532
3533         /*
3534          * update on pci function's nvmet xri-sgl list
3535          */
3536         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3537
3538         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3539         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3540         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3541                 /* els xri-sgl expanded */
3542                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3543                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3544                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3545                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3546                 /* allocate the additional nvmet sgls */
3547                 for (i = 0; i < xri_cnt; i++) {
3548                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3549                                              GFP_KERNEL);
3550                         if (sglq_entry == NULL) {
3551                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3552                                                 "6303 Failure to allocate an "
3553                                                 "NVMET sgl entry:%d\n", i);
3554                                 rc = -ENOMEM;
3555                                 goto out_free_mem;
3556                         }
3557                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3558                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3559                                                            &sglq_entry->phys);
3560                         if (sglq_entry->virt == NULL) {
3561                                 kfree(sglq_entry);
3562                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3563                                                 "6304 Failure to allocate an "
3564                                                 "NVMET buf:%d\n", i);
3565                                 rc = -ENOMEM;
3566                                 goto out_free_mem;
3567                         }
3568                         sglq_entry->sgl = sglq_entry->virt;
3569                         memset(sglq_entry->sgl, 0,
3570                                phba->cfg_sg_dma_buf_size);
3571                         sglq_entry->state = SGL_FREED;
3572                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3573                 }
3574                 spin_lock_irq(&phba->hbalock);
3575                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3576                 list_splice_init(&nvmet_sgl_list,
3577                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3578                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3579                 spin_unlock_irq(&phba->hbalock);
3580         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3581                 /* nvmet xri-sgl shrunk */
3582                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3583                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3584                                 "6305 NVMET xri-sgl count decreased from "
3585                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3586                                 nvmet_xri_cnt);
3587                 spin_lock_irq(&phba->hbalock);
3588                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3589                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3590                                  &nvmet_sgl_list);
3591                 /* release extra nvmet sgls from list */
3592                 for (i = 0; i < xri_cnt; i++) {
3593                         list_remove_head(&nvmet_sgl_list,
3594                                          sglq_entry, struct lpfc_sglq, list);
3595                         if (sglq_entry) {
3596                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3597                                                     sglq_entry->phys);
3598                                 kfree(sglq_entry);
3599                         }
3600                 }
3601                 list_splice_init(&nvmet_sgl_list,
3602                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3603                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3604                 spin_unlock_irq(&phba->hbalock);
3605         } else
3606                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3607                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3608                                 nvmet_xri_cnt);
3609         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3610
3611         /* update xris to nvmet sgls on the list */
3612         sglq_entry = NULL;
3613         sglq_entry_next = NULL;
3614         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3615                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3616                 lxri = lpfc_sli4_next_xritag(phba);
3617                 if (lxri == NO_XRI) {
3618                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3619                                         "6307 Failed to allocate xri for "
3620                                         "NVMET sgl\n");
3621                         rc = -ENOMEM;
3622                         goto out_free_mem;
3623                 }
3624                 sglq_entry->sli4_lxritag = lxri;
3625                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3626         }
3627         return 0;
3628
3629 out_free_mem:
3630         lpfc_free_nvmet_sgl_list(phba);
3631         return rc;
3632 }
3633
3634 /**
3635  * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping
3636  * @phba: pointer to lpfc hba data structure.
3637  *
3638  * This routine first calculates the sizes of the current els and allocated
3639  * scsi sgl lists, and then goes through all sgls to updates the physical
3640  * XRIs assigned due to port function reset. During port initialization, the
3641  * current els and allocated scsi sgl lists are 0s.
3642  *
3643  * Return codes
3644  *   0 - successful (for now, it always returns 0)
3645  **/
3646 int
3647 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba)
3648 {
3649         struct lpfc_scsi_buf *psb, *psb_next;
3650         uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt;
3651         LIST_HEAD(scsi_sgl_list);
3652         int rc;
3653
3654         /*
3655          * update on pci function's els xri-sgl list
3656          */
3657         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3658         phba->total_scsi_bufs = 0;
3659
3660         /*
3661          * update on pci function's allocated scsi xri-sgl list
3662          */
3663         /* maximum number of xris available for scsi buffers */
3664         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3665                                       els_xri_cnt;
3666
3667         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3668                 return 0;
3669
3670         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3671                 phba->sli4_hba.scsi_xri_max =  /* Split them up */
3672                         (phba->sli4_hba.scsi_xri_max *
3673                          phba->cfg_xri_split) / 100;
3674
3675         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3676         spin_lock(&phba->scsi_buf_list_put_lock);
3677         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3678         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3679         spin_unlock(&phba->scsi_buf_list_put_lock);
3680         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3681
3682         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3683                         "6060 Current allocated SCSI xri-sgl count:%d, "
3684                         "maximum  SCSI xri count:%d (split:%d)\n",
3685                         phba->sli4_hba.scsi_xri_cnt,
3686                         phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split);
3687
3688         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3689                 /* max scsi xri shrinked below the allocated scsi buffers */
3690                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3691                                         phba->sli4_hba.scsi_xri_max;
3692                 /* release the extra allocated scsi buffers */
3693                 for (i = 0; i < scsi_xri_cnt; i++) {
3694                         list_remove_head(&scsi_sgl_list, psb,
3695                                          struct lpfc_scsi_buf, list);
3696                         if (psb) {
3697                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3698                                               psb->data, psb->dma_handle);
3699                                 kfree(psb);
3700                         }
3701                 }
3702                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3703                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3704                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3705         }
3706
3707         /* update xris associated to remaining allocated scsi buffers */
3708         psb = NULL;
3709         psb_next = NULL;
3710         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3711                 lxri = lpfc_sli4_next_xritag(phba);
3712                 if (lxri == NO_XRI) {
3713                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3714                                         "2560 Failed to allocate xri for "
3715                                         "scsi buffer\n");
3716                         rc = -ENOMEM;
3717                         goto out_free_mem;
3718                 }
3719                 psb->cur_iocbq.sli4_lxritag = lxri;
3720                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3721         }
3722         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3723         spin_lock(&phba->scsi_buf_list_put_lock);
3724         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3725         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3726         spin_unlock(&phba->scsi_buf_list_put_lock);
3727         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3728         return 0;
3729
3730 out_free_mem:
3731         lpfc_scsi_free(phba);
3732         return rc;
3733 }
3734
3735 static uint64_t
3736 lpfc_get_wwpn(struct lpfc_hba *phba)
3737 {
3738         uint64_t wwn;
3739         int rc;
3740         LPFC_MBOXQ_t *mboxq;
3741         MAILBOX_t *mb;
3742
3743         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3744                                                 GFP_KERNEL);
3745         if (!mboxq)
3746                 return (uint64_t)-1;
3747
3748         /* First get WWN of HBA instance */
3749         lpfc_read_nv(phba, mboxq);
3750         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3751         if (rc != MBX_SUCCESS) {
3752                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3753                                 "6019 Mailbox failed , mbxCmd x%x "
3754                                 "READ_NV, mbxStatus x%x\n",
3755                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
3756                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
3757                 mempool_free(mboxq, phba->mbox_mem_pool);
3758                 return (uint64_t) -1;
3759         }
3760         mb = &mboxq->u.mb;
3761         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
3762         /* wwn is WWPN of HBA instance */
3763         mempool_free(mboxq, phba->mbox_mem_pool);
3764         if (phba->sli_rev == LPFC_SLI_REV4)
3765                 return be64_to_cpu(wwn);
3766         else
3767                 return rol64(wwn, 32);
3768 }
3769
3770 /**
3771  * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping
3772  * @phba: pointer to lpfc hba data structure.
3773  *
3774  * This routine first calculates the sizes of the current els and allocated
3775  * scsi sgl lists, and then goes through all sgls to updates the physical
3776  * XRIs assigned due to port function reset. During port initialization, the
3777  * current els and allocated scsi sgl lists are 0s.
3778  *
3779  * Return codes
3780  *   0 - successful (for now, it always returns 0)
3781  **/
3782 int
3783 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
3784 {
3785         struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3786         uint16_t i, lxri, els_xri_cnt;
3787         uint16_t nvme_xri_cnt, nvme_xri_max;
3788         LIST_HEAD(nvme_sgl_list);
3789         int rc, cnt;
3790
3791         phba->total_nvme_bufs = 0;
3792         phba->get_nvme_bufs = 0;
3793         phba->put_nvme_bufs = 0;
3794
3795         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3796                 return 0;
3797         /*
3798          * update on pci function's allocated nvme xri-sgl list
3799          */
3800
3801         /* maximum number of xris available for nvme buffers */
3802         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3803         nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3804         phba->sli4_hba.nvme_xri_max = nvme_xri_max;
3805         phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max;
3806
3807         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3808                         "6074 Current allocated NVME xri-sgl count:%d, "
3809                         "maximum  NVME xri count:%d\n",
3810                         phba->sli4_hba.nvme_xri_cnt,
3811                         phba->sli4_hba.nvme_xri_max);
3812
3813         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3814         spin_lock(&phba->nvme_buf_list_put_lock);
3815         list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
3816         list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
3817         cnt = phba->get_nvme_bufs + phba->put_nvme_bufs;
3818         phba->get_nvme_bufs = 0;
3819         phba->put_nvme_bufs = 0;
3820         spin_unlock(&phba->nvme_buf_list_put_lock);
3821         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3822
3823         if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) {
3824                 /* max nvme xri shrunk below the allocated nvme buffers */
3825                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3826                 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt -
3827                                         phba->sli4_hba.nvme_xri_max;
3828                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3829                 /* release the extra allocated nvme buffers */
3830                 for (i = 0; i < nvme_xri_cnt; i++) {
3831                         list_remove_head(&nvme_sgl_list, lpfc_ncmd,
3832                                          struct lpfc_nvme_buf, list);
3833                         if (lpfc_ncmd) {
3834                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3835                                               lpfc_ncmd->data,
3836                                               lpfc_ncmd->dma_handle);
3837                                 kfree(lpfc_ncmd);
3838                         }
3839                 }
3840                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3841                 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt;
3842                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3843         }
3844
3845         /* update xris associated to remaining allocated nvme buffers */
3846         lpfc_ncmd = NULL;
3847         lpfc_ncmd_next = NULL;
3848         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3849                                  &nvme_sgl_list, list) {
3850                 lxri = lpfc_sli4_next_xritag(phba);
3851                 if (lxri == NO_XRI) {
3852                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3853                                         "6075 Failed to allocate xri for "
3854                                         "nvme buffer\n");
3855                         rc = -ENOMEM;
3856                         goto out_free_mem;
3857                 }
3858                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
3859                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3860         }
3861         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3862         spin_lock(&phba->nvme_buf_list_put_lock);
3863         list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
3864         phba->get_nvme_bufs = cnt;
3865         INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
3866         spin_unlock(&phba->nvme_buf_list_put_lock);
3867         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3868         return 0;
3869
3870 out_free_mem:
3871         lpfc_nvme_free(phba);
3872         return rc;
3873 }
3874
3875 /**
3876  * lpfc_create_port - Create an FC port
3877  * @phba: pointer to lpfc hba data structure.
3878  * @instance: a unique integer ID to this FC port.
3879  * @dev: pointer to the device data structure.
3880  *
3881  * This routine creates a FC port for the upper layer protocol. The FC port
3882  * can be created on top of either a physical port or a virtual port provided
3883  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3884  * and associates the FC port created before adding the shost into the SCSI
3885  * layer.
3886  *
3887  * Return codes
3888  *   @vport - pointer to the virtual N_Port data structure.
3889  *   NULL - port create failed.
3890  **/
3891 struct lpfc_vport *
3892 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3893 {
3894         struct lpfc_vport *vport;
3895         struct Scsi_Host  *shost = NULL;
3896         int error = 0;
3897         int i;
3898         uint64_t wwn;
3899         bool use_no_reset_hba = false;
3900         int rc;
3901
3902         if (lpfc_no_hba_reset_cnt) {
3903                 if (phba->sli_rev < LPFC_SLI_REV4 &&
3904                     dev == &phba->pcidev->dev) {
3905                         /* Reset the port first */
3906                         lpfc_sli_brdrestart(phba);
3907                         rc = lpfc_sli_chipset_init(phba);
3908                         if (rc)
3909                                 return NULL;
3910                 }
3911                 wwn = lpfc_get_wwpn(phba);
3912         }
3913
3914         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
3915                 if (wwn == lpfc_no_hba_reset[i]) {
3916                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3917                                         "6020 Setting use_no_reset port=%llx\n",
3918                                         wwn);
3919                         use_no_reset_hba = true;
3920                         break;
3921                 }
3922         }
3923
3924         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
3925                 if (dev != &phba->pcidev->dev) {
3926                         shost = scsi_host_alloc(&lpfc_vport_template,
3927                                                 sizeof(struct lpfc_vport));
3928                 } else {
3929                         if (!use_no_reset_hba)
3930                                 shost = scsi_host_alloc(&lpfc_template,
3931                                                 sizeof(struct lpfc_vport));
3932                         else
3933                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
3934                                                 sizeof(struct lpfc_vport));
3935                 }
3936         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3937                 shost = scsi_host_alloc(&lpfc_template_nvme,
3938                                         sizeof(struct lpfc_vport));
3939         }
3940         if (!shost)
3941                 goto out;
3942
3943         vport = (struct lpfc_vport *) shost->hostdata;
3944         vport->phba = phba;
3945         vport->load_flag |= FC_LOADING;
3946         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3947         vport->fc_rscn_flush = 0;
3948         lpfc_get_vport_cfgparam(vport);
3949
3950         shost->unique_id = instance;
3951         shost->max_id = LPFC_MAX_TARGET;
3952         shost->max_lun = vport->cfg_max_luns;
3953         shost->this_id = -1;
3954         shost->max_cmd_len = 16;
3955         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3956         if (phba->sli_rev == LPFC_SLI_REV4) {
3957                 shost->dma_boundary =
3958                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3959                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3960         }
3961
3962         /*
3963          * Set initial can_queue value since 0 is no longer supported and
3964          * scsi_add_host will fail. This will be adjusted later based on the
3965          * max xri value determined in hba setup.
3966          */
3967         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3968         if (dev != &phba->pcidev->dev) {
3969                 shost->transportt = lpfc_vport_transport_template;
3970                 vport->port_type = LPFC_NPIV_PORT;
3971         } else {
3972                 shost->transportt = lpfc_transport_template;
3973                 vport->port_type = LPFC_PHYSICAL_PORT;
3974         }
3975
3976         /* Initialize all internally managed lists. */
3977         INIT_LIST_HEAD(&vport->fc_nodes);
3978         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3979         spin_lock_init(&vport->work_port_lock);
3980
3981         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
3982
3983         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
3984
3985         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
3986
3987         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3988         if (error)
3989                 goto out_put_shost;
3990
3991         spin_lock_irq(&phba->hbalock);
3992         list_add_tail(&vport->listentry, &phba->port_list);
3993         spin_unlock_irq(&phba->hbalock);
3994         return vport;
3995
3996 out_put_shost:
3997         scsi_host_put(shost);
3998 out:
3999         return NULL;
4000 }
4001
4002 /**
4003  * destroy_port -  destroy an FC port
4004  * @vport: pointer to an lpfc virtual N_Port data structure.
4005  *
4006  * This routine destroys a FC port from the upper layer protocol. All the
4007  * resources associated with the port are released.
4008  **/
4009 void
4010 destroy_port(struct lpfc_vport *vport)
4011 {
4012         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4013         struct lpfc_hba  *phba = vport->phba;
4014
4015         lpfc_debugfs_terminate(vport);
4016         fc_remove_host(shost);
4017         scsi_remove_host(shost);
4018
4019         spin_lock_irq(&phba->hbalock);
4020         list_del_init(&vport->listentry);
4021         spin_unlock_irq(&phba->hbalock);
4022
4023         lpfc_cleanup(vport);
4024         return;
4025 }
4026
4027 /**
4028  * lpfc_get_instance - Get a unique integer ID
4029  *
4030  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4031  * uses the kernel idr facility to perform the task.
4032  *
4033  * Return codes:
4034  *   instance - a unique integer ID allocated as the new instance.
4035  *   -1 - lpfc get instance failed.
4036  **/
4037 int
4038 lpfc_get_instance(void)
4039 {
4040         int ret;
4041
4042         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4043         return ret < 0 ? -1 : ret;
4044 }
4045
4046 /**
4047  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4048  * @shost: pointer to SCSI host data structure.
4049  * @time: elapsed time of the scan in jiffies.
4050  *
4051  * This routine is called by the SCSI layer with a SCSI host to determine
4052  * whether the scan host is finished.
4053  *
4054  * Note: there is no scan_start function as adapter initialization will have
4055  * asynchronously kicked off the link initialization.
4056  *
4057  * Return codes
4058  *   0 - SCSI host scan is not over yet.
4059  *   1 - SCSI host scan is over.
4060  **/
4061 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4062 {
4063         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4064         struct lpfc_hba   *phba = vport->phba;
4065         int stat = 0;
4066
4067         spin_lock_irq(shost->host_lock);
4068
4069         if (vport->load_flag & FC_UNLOADING) {
4070                 stat = 1;
4071                 goto finished;
4072         }
4073         if (time >= msecs_to_jiffies(30 * 1000)) {
4074                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4075                                 "0461 Scanning longer than 30 "
4076                                 "seconds.  Continuing initialization\n");
4077                 stat = 1;
4078                 goto finished;
4079         }
4080         if (time >= msecs_to_jiffies(15 * 1000) &&
4081             phba->link_state <= LPFC_LINK_DOWN) {
4082                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4083                                 "0465 Link down longer than 15 "
4084                                 "seconds.  Continuing initialization\n");
4085                 stat = 1;
4086                 goto finished;
4087         }
4088
4089         if (vport->port_state != LPFC_VPORT_READY)
4090                 goto finished;
4091         if (vport->num_disc_nodes || vport->fc_prli_sent)
4092                 goto finished;
4093         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4094                 goto finished;
4095         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4096                 goto finished;
4097
4098         stat = 1;
4099
4100 finished:
4101         spin_unlock_irq(shost->host_lock);
4102         return stat;
4103 }
4104
4105 /**
4106  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4107  * @shost: pointer to SCSI host data structure.
4108  *
4109  * This routine initializes a given SCSI host attributes on a FC port. The
4110  * SCSI host can be either on top of a physical port or a virtual port.
4111  **/
4112 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4113 {
4114         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4115         struct lpfc_hba   *phba = vport->phba;
4116         /*
4117          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4118          */
4119
4120         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4121         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4122         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4123
4124         memset(fc_host_supported_fc4s(shost), 0,
4125                sizeof(fc_host_supported_fc4s(shost)));
4126         fc_host_supported_fc4s(shost)[2] = 1;
4127         fc_host_supported_fc4s(shost)[7] = 1;
4128
4129         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4130                                  sizeof fc_host_symbolic_name(shost));
4131
4132         fc_host_supported_speeds(shost) = 0;
4133         if (phba->lmt & LMT_64Gb)
4134                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4135         if (phba->lmt & LMT_32Gb)
4136                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4137         if (phba->lmt & LMT_16Gb)
4138                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4139         if (phba->lmt & LMT_10Gb)
4140                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4141         if (phba->lmt & LMT_8Gb)
4142                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4143         if (phba->lmt & LMT_4Gb)
4144                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4145         if (phba->lmt & LMT_2Gb)
4146                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4147         if (phba->lmt & LMT_1Gb)
4148                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4149
4150         fc_host_maxframe_size(shost) =
4151                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4152                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4153
4154         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4155
4156         /* This value is also unchanging */
4157         memset(fc_host_active_fc4s(shost), 0,
4158                sizeof(fc_host_active_fc4s(shost)));
4159         fc_host_active_fc4s(shost)[2] = 1;
4160         fc_host_active_fc4s(shost)[7] = 1;
4161
4162         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4163         spin_lock_irq(shost->host_lock);
4164         vport->load_flag &= ~FC_LOADING;
4165         spin_unlock_irq(shost->host_lock);
4166 }
4167
4168 /**
4169  * lpfc_stop_port_s3 - Stop SLI3 device port
4170  * @phba: pointer to lpfc hba data structure.
4171  *
4172  * This routine is invoked to stop an SLI3 device port, it stops the device
4173  * from generating interrupts and stops the device driver's timers for the
4174  * device.
4175  **/
4176 static void
4177 lpfc_stop_port_s3(struct lpfc_hba *phba)
4178 {
4179         /* Clear all interrupt enable conditions */
4180         writel(0, phba->HCregaddr);
4181         readl(phba->HCregaddr); /* flush */
4182         /* Clear all pending interrupts */
4183         writel(0xffffffff, phba->HAregaddr);
4184         readl(phba->HAregaddr); /* flush */
4185
4186         /* Reset some HBA SLI setup states */
4187         lpfc_stop_hba_timers(phba);
4188         phba->pport->work_port_events = 0;
4189 }
4190
4191 /**
4192  * lpfc_stop_port_s4 - Stop SLI4 device port
4193  * @phba: pointer to lpfc hba data structure.
4194  *
4195  * This routine is invoked to stop an SLI4 device port, it stops the device
4196  * from generating interrupts and stops the device driver's timers for the
4197  * device.
4198  **/
4199 static void
4200 lpfc_stop_port_s4(struct lpfc_hba *phba)
4201 {
4202         /* Reset some HBA SLI4 setup states */
4203         lpfc_stop_hba_timers(phba);
4204         phba->pport->work_port_events = 0;
4205         phba->sli4_hba.intr_enable = 0;
4206 }
4207
4208 /**
4209  * lpfc_stop_port - Wrapper function for stopping hba port
4210  * @phba: Pointer to HBA context object.
4211  *
4212  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4213  * the API jump table function pointer from the lpfc_hba struct.
4214  **/
4215 void
4216 lpfc_stop_port(struct lpfc_hba *phba)
4217 {
4218         phba->lpfc_stop_port(phba);
4219
4220         if (phba->wq)
4221                 flush_workqueue(phba->wq);
4222 }
4223
4224 /**
4225  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4226  * @phba: Pointer to hba for which this call is being executed.
4227  *
4228  * This routine starts the timer waiting for the FCF rediscovery to complete.
4229  **/
4230 void
4231 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4232 {
4233         unsigned long fcf_redisc_wait_tmo =
4234                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4235         /* Start fcf rediscovery wait period timer */
4236         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4237         spin_lock_irq(&phba->hbalock);
4238         /* Allow action to new fcf asynchronous event */
4239         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4240         /* Mark the FCF rediscovery pending state */
4241         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4242         spin_unlock_irq(&phba->hbalock);
4243 }
4244
4245 /**
4246  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4247  * @ptr: Map to lpfc_hba data structure pointer.
4248  *
4249  * This routine is invoked when waiting for FCF table rediscover has been
4250  * timed out. If new FCF record(s) has (have) been discovered during the
4251  * wait period, a new FCF event shall be added to the FCOE async event
4252  * list, and then worker thread shall be waked up for processing from the
4253  * worker thread context.
4254  **/
4255 static void
4256 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4257 {
4258         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4259
4260         /* Don't send FCF rediscovery event if timer cancelled */
4261         spin_lock_irq(&phba->hbalock);
4262         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4263                 spin_unlock_irq(&phba->hbalock);
4264                 return;
4265         }
4266         /* Clear FCF rediscovery timer pending flag */
4267         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4268         /* FCF rediscovery event to worker thread */
4269         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4270         spin_unlock_irq(&phba->hbalock);
4271         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4272                         "2776 FCF rediscover quiescent timer expired\n");
4273         /* wake up worker thread */
4274         lpfc_worker_wake_up(phba);
4275 }
4276
4277 /**
4278  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4279  * @phba: pointer to lpfc hba data structure.
4280  * @acqe_link: pointer to the async link completion queue entry.
4281  *
4282  * This routine is to parse the SLI4 link-attention link fault code.
4283  **/
4284 static void
4285 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4286                            struct lpfc_acqe_link *acqe_link)
4287 {
4288         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4289         case LPFC_ASYNC_LINK_FAULT_NONE:
4290         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4291         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4292         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4293                 break;
4294         default:
4295                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4296                                 "0398 Unknown link fault code: x%x\n",
4297                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4298                 break;
4299         }
4300 }
4301
4302 /**
4303  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4304  * @phba: pointer to lpfc hba data structure.
4305  * @acqe_link: pointer to the async link completion queue entry.
4306  *
4307  * This routine is to parse the SLI4 link attention type and translate it
4308  * into the base driver's link attention type coding.
4309  *
4310  * Return: Link attention type in terms of base driver's coding.
4311  **/
4312 static uint8_t
4313 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4314                           struct lpfc_acqe_link *acqe_link)
4315 {
4316         uint8_t att_type;
4317
4318         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4319         case LPFC_ASYNC_LINK_STATUS_DOWN:
4320         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4321                 att_type = LPFC_ATT_LINK_DOWN;
4322                 break;
4323         case LPFC_ASYNC_LINK_STATUS_UP:
4324                 /* Ignore physical link up events - wait for logical link up */
4325                 att_type = LPFC_ATT_RESERVED;
4326                 break;
4327         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4328                 att_type = LPFC_ATT_LINK_UP;
4329                 break;
4330         default:
4331                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4332                                 "0399 Invalid link attention type: x%x\n",
4333                                 bf_get(lpfc_acqe_link_status, acqe_link));
4334                 att_type = LPFC_ATT_RESERVED;
4335                 break;
4336         }
4337         return att_type;
4338 }
4339
4340 /**
4341  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4342  * @phba: pointer to lpfc hba data structure.
4343  *
4344  * This routine is to get an SLI3 FC port's link speed in Mbps.
4345  *
4346  * Return: link speed in terms of Mbps.
4347  **/
4348 uint32_t
4349 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4350 {
4351         uint32_t link_speed;
4352
4353         if (!lpfc_is_link_up(phba))
4354                 return 0;
4355
4356         if (phba->sli_rev <= LPFC_SLI_REV3) {
4357                 switch (phba->fc_linkspeed) {
4358                 case LPFC_LINK_SPEED_1GHZ:
4359                         link_speed = 1000;
4360                         break;
4361                 case LPFC_LINK_SPEED_2GHZ:
4362                         link_speed = 2000;
4363                         break;
4364                 case LPFC_LINK_SPEED_4GHZ:
4365                         link_speed = 4000;
4366                         break;
4367                 case LPFC_LINK_SPEED_8GHZ:
4368                         link_speed = 8000;
4369                         break;
4370                 case LPFC_LINK_SPEED_10GHZ:
4371                         link_speed = 10000;
4372                         break;
4373                 case LPFC_LINK_SPEED_16GHZ:
4374                         link_speed = 16000;
4375                         break;
4376                 default:
4377                         link_speed = 0;
4378                 }
4379         } else {
4380                 if (phba->sli4_hba.link_state.logical_speed)
4381                         link_speed =
4382                               phba->sli4_hba.link_state.logical_speed;
4383                 else
4384                         link_speed = phba->sli4_hba.link_state.speed;
4385         }
4386         return link_speed;
4387 }
4388
4389 /**
4390  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4391  * @phba: pointer to lpfc hba data structure.
4392  * @evt_code: asynchronous event code.
4393  * @speed_code: asynchronous event link speed code.
4394  *
4395  * This routine is to parse the giving SLI4 async event link speed code into
4396  * value of Mbps for the link speed.
4397  *
4398  * Return: link speed in terms of Mbps.
4399  **/
4400 static uint32_t
4401 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4402                            uint8_t speed_code)
4403 {
4404         uint32_t port_speed;
4405
4406         switch (evt_code) {
4407         case LPFC_TRAILER_CODE_LINK:
4408                 switch (speed_code) {
4409                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4410                         port_speed = 0;
4411                         break;
4412                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4413                         port_speed = 10;
4414                         break;
4415                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4416                         port_speed = 100;
4417                         break;
4418                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4419                         port_speed = 1000;
4420                         break;
4421                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4422                         port_speed = 10000;
4423                         break;
4424                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4425                         port_speed = 20000;
4426                         break;
4427                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4428                         port_speed = 25000;
4429                         break;
4430                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4431                         port_speed = 40000;
4432                         break;
4433                 default:
4434                         port_speed = 0;
4435                 }
4436                 break;
4437         case LPFC_TRAILER_CODE_FC:
4438                 switch (speed_code) {
4439                 case LPFC_FC_LA_SPEED_UNKNOWN:
4440                         port_speed = 0;
4441                         break;
4442                 case LPFC_FC_LA_SPEED_1G:
4443                         port_speed = 1000;
4444                         break;
4445                 case LPFC_FC_LA_SPEED_2G:
4446                         port_speed = 2000;
4447                         break;
4448                 case LPFC_FC_LA_SPEED_4G:
4449                         port_speed = 4000;
4450                         break;
4451                 case LPFC_FC_LA_SPEED_8G:
4452                         port_speed = 8000;
4453                         break;
4454                 case LPFC_FC_LA_SPEED_10G:
4455                         port_speed = 10000;
4456                         break;
4457                 case LPFC_FC_LA_SPEED_16G:
4458                         port_speed = 16000;
4459                         break;
4460                 case LPFC_FC_LA_SPEED_32G:
4461                         port_speed = 32000;
4462                         break;
4463                 case LPFC_FC_LA_SPEED_64G:
4464                         port_speed = 64000;
4465                         break;
4466                 default:
4467                         port_speed = 0;
4468                 }
4469                 break;
4470         default:
4471                 port_speed = 0;
4472         }
4473         return port_speed;
4474 }
4475
4476 /**
4477  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4478  * @phba: pointer to lpfc hba data structure.
4479  * @acqe_link: pointer to the async link completion queue entry.
4480  *
4481  * This routine is to handle the SLI4 asynchronous FCoE link event.
4482  **/
4483 static void
4484 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4485                          struct lpfc_acqe_link *acqe_link)
4486 {
4487         struct lpfc_dmabuf *mp;
4488         LPFC_MBOXQ_t *pmb;
4489         MAILBOX_t *mb;
4490         struct lpfc_mbx_read_top *la;
4491         uint8_t att_type;
4492         int rc;
4493
4494         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4495         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4496                 return;
4497         phba->fcoe_eventtag = acqe_link->event_tag;
4498         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4499         if (!pmb) {
4500                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4501                                 "0395 The mboxq allocation failed\n");
4502                 return;
4503         }
4504         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4505         if (!mp) {
4506                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4507                                 "0396 The lpfc_dmabuf allocation failed\n");
4508                 goto out_free_pmb;
4509         }
4510         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4511         if (!mp->virt) {
4512                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4513                                 "0397 The mbuf allocation failed\n");
4514                 goto out_free_dmabuf;
4515         }
4516
4517         /* Cleanup any outstanding ELS commands */
4518         lpfc_els_flush_all_cmd(phba);
4519
4520         /* Block ELS IOCBs until we have done process link event */
4521         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4522
4523         /* Update link event statistics */
4524         phba->sli.slistat.link_event++;
4525
4526         /* Create lpfc_handle_latt mailbox command from link ACQE */
4527         lpfc_read_topology(phba, pmb, mp);
4528         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4529         pmb->vport = phba->pport;
4530
4531         /* Keep the link status for extra SLI4 state machine reference */
4532         phba->sli4_hba.link_state.speed =
4533                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4534                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4535         phba->sli4_hba.link_state.duplex =
4536                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4537         phba->sli4_hba.link_state.status =
4538                                 bf_get(lpfc_acqe_link_status, acqe_link);
4539         phba->sli4_hba.link_state.type =
4540                                 bf_get(lpfc_acqe_link_type, acqe_link);
4541         phba->sli4_hba.link_state.number =
4542                                 bf_get(lpfc_acqe_link_number, acqe_link);
4543         phba->sli4_hba.link_state.fault =
4544                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4545         phba->sli4_hba.link_state.logical_speed =
4546                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4547
4548         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4549                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4550                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4551                         "Logical speed:%dMbps Fault:%d\n",
4552                         phba->sli4_hba.link_state.speed,
4553                         phba->sli4_hba.link_state.topology,
4554                         phba->sli4_hba.link_state.status,
4555                         phba->sli4_hba.link_state.type,
4556                         phba->sli4_hba.link_state.number,
4557                         phba->sli4_hba.link_state.logical_speed,
4558                         phba->sli4_hba.link_state.fault);
4559         /*
4560          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4561          * topology info. Note: Optional for non FC-AL ports.
4562          */
4563         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4564                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4565                 if (rc == MBX_NOT_FINISHED)
4566                         goto out_free_dmabuf;
4567                 return;
4568         }
4569         /*
4570          * For FCoE Mode: fill in all the topology information we need and call
4571          * the READ_TOPOLOGY completion routine to continue without actually
4572          * sending the READ_TOPOLOGY mailbox command to the port.
4573          */
4574         /* Initialize completion status */
4575         mb = &pmb->u.mb;
4576         mb->mbxStatus = MBX_SUCCESS;
4577
4578         /* Parse port fault information field */
4579         lpfc_sli4_parse_latt_fault(phba, acqe_link);
4580
4581         /* Parse and translate link attention fields */
4582         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4583         la->eventTag = acqe_link->event_tag;
4584         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4585         bf_set(lpfc_mbx_read_top_link_spd, la,
4586                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4587
4588         /* Fake the the following irrelvant fields */
4589         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4590         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4591         bf_set(lpfc_mbx_read_top_il, la, 0);
4592         bf_set(lpfc_mbx_read_top_pb, la, 0);
4593         bf_set(lpfc_mbx_read_top_fa, la, 0);
4594         bf_set(lpfc_mbx_read_top_mm, la, 0);
4595
4596         /* Invoke the lpfc_handle_latt mailbox command callback function */
4597         lpfc_mbx_cmpl_read_topology(phba, pmb);
4598
4599         return;
4600
4601 out_free_dmabuf:
4602         kfree(mp);
4603 out_free_pmb:
4604         mempool_free(pmb, phba->mbox_mem_pool);
4605 }
4606
4607 /**
4608  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4609  * @phba: pointer to lpfc hba data structure.
4610  * @acqe_fc: pointer to the async fc completion queue entry.
4611  *
4612  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4613  * that the event was received and then issue a read_topology mailbox command so
4614  * that the rest of the driver will treat it the same as SLI3.
4615  **/
4616 static void
4617 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4618 {
4619         struct lpfc_dmabuf *mp;
4620         LPFC_MBOXQ_t *pmb;
4621         MAILBOX_t *mb;
4622         struct lpfc_mbx_read_top *la;
4623         int rc;
4624
4625         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4626             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4627                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4628                                 "2895 Non FC link Event detected.(%d)\n",
4629                                 bf_get(lpfc_trailer_type, acqe_fc));
4630                 return;
4631         }
4632         /* Keep the link status for extra SLI4 state machine reference */
4633         phba->sli4_hba.link_state.speed =
4634                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4635                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4636         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4637         phba->sli4_hba.link_state.topology =
4638                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4639         phba->sli4_hba.link_state.status =
4640                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4641         phba->sli4_hba.link_state.type =
4642                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4643         phba->sli4_hba.link_state.number =
4644                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4645         phba->sli4_hba.link_state.fault =
4646                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4647         phba->sli4_hba.link_state.logical_speed =
4648                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4649         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4650                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4651                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4652                         "%dMbps Fault:%d\n",
4653                         phba->sli4_hba.link_state.speed,
4654                         phba->sli4_hba.link_state.topology,
4655                         phba->sli4_hba.link_state.status,
4656                         phba->sli4_hba.link_state.type,
4657                         phba->sli4_hba.link_state.number,
4658                         phba->sli4_hba.link_state.logical_speed,
4659                         phba->sli4_hba.link_state.fault);
4660         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4661         if (!pmb) {
4662                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4663                                 "2897 The mboxq allocation failed\n");
4664                 return;
4665         }
4666         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4667         if (!mp) {
4668                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4669                                 "2898 The lpfc_dmabuf allocation failed\n");
4670                 goto out_free_pmb;
4671         }
4672         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4673         if (!mp->virt) {
4674                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4675                                 "2899 The mbuf allocation failed\n");
4676                 goto out_free_dmabuf;
4677         }
4678
4679         /* Cleanup any outstanding ELS commands */
4680         lpfc_els_flush_all_cmd(phba);
4681
4682         /* Block ELS IOCBs until we have done process link event */
4683         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4684
4685         /* Update link event statistics */
4686         phba->sli.slistat.link_event++;
4687
4688         /* Create lpfc_handle_latt mailbox command from link ACQE */
4689         lpfc_read_topology(phba, pmb, mp);
4690         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4691         pmb->vport = phba->pport;
4692
4693         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4694                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
4695
4696                 switch (phba->sli4_hba.link_state.status) {
4697                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
4698                         phba->link_flag |= LS_MDS_LINK_DOWN;
4699                         break;
4700                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
4701                         phba->link_flag |= LS_MDS_LOOPBACK;
4702                         break;
4703                 default:
4704                         break;
4705                 }
4706
4707                 /* Initialize completion status */
4708                 mb = &pmb->u.mb;
4709                 mb->mbxStatus = MBX_SUCCESS;
4710
4711                 /* Parse port fault information field */
4712                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
4713
4714                 /* Parse and translate link attention fields */
4715                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4716                 la->eventTag = acqe_fc->event_tag;
4717
4718                 if (phba->sli4_hba.link_state.status ==
4719                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
4720                         bf_set(lpfc_mbx_read_top_att_type, la,
4721                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
4722                 } else {
4723                         bf_set(lpfc_mbx_read_top_att_type, la,
4724                                LPFC_FC_LA_TYPE_LINK_DOWN);
4725                 }
4726                 /* Invoke the mailbox command callback function */
4727                 lpfc_mbx_cmpl_read_topology(phba, pmb);
4728
4729                 return;
4730         }
4731
4732         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4733         if (rc == MBX_NOT_FINISHED)
4734                 goto out_free_dmabuf;
4735         return;
4736
4737 out_free_dmabuf:
4738         kfree(mp);
4739 out_free_pmb:
4740         mempool_free(pmb, phba->mbox_mem_pool);
4741 }
4742
4743 /**
4744  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4745  * @phba: pointer to lpfc hba data structure.
4746  * @acqe_fc: pointer to the async SLI completion queue entry.
4747  *
4748  * This routine is to handle the SLI4 asynchronous SLI events.
4749  **/
4750 static void
4751 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4752 {
4753         char port_name;
4754         char message[128];
4755         uint8_t status;
4756         uint8_t evt_type;
4757         uint8_t operational = 0;
4758         struct temp_event temp_event_data;
4759         struct lpfc_acqe_misconfigured_event *misconfigured;
4760         struct Scsi_Host  *shost;
4761
4762         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4763
4764         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4765                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4766                         "x%08x SLI Event Type:%d\n",
4767                         acqe_sli->event_data1, acqe_sli->event_data2,
4768                         evt_type);
4769
4770         port_name = phba->Port[0];
4771         if (port_name == 0x00)
4772                 port_name = '?'; /* get port name is empty */
4773
4774         switch (evt_type) {
4775         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4776                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4777                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4778                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4779
4780                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4781                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4782                                 acqe_sli->event_data1, port_name);
4783
4784                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4785                 shost = lpfc_shost_from_vport(phba->pport);
4786                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4787                                           sizeof(temp_event_data),
4788                                           (char *)&temp_event_data,
4789                                           SCSI_NL_VID_TYPE_PCI
4790                                           | PCI_VENDOR_ID_EMULEX);
4791                 break;
4792         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4793                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4794                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4795                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4796
4797                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4798                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4799                                 acqe_sli->event_data1, port_name);
4800
4801                 shost = lpfc_shost_from_vport(phba->pport);
4802                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4803                                           sizeof(temp_event_data),
4804                                           (char *)&temp_event_data,
4805                                           SCSI_NL_VID_TYPE_PCI
4806                                           | PCI_VENDOR_ID_EMULEX);
4807                 break;
4808         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4809                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4810                                         &acqe_sli->event_data1;
4811
4812                 /* fetch the status for this port */
4813                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4814                 case LPFC_LINK_NUMBER_0:
4815                         status = bf_get(lpfc_sli_misconfigured_port0_state,
4816                                         &misconfigured->theEvent);
4817                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
4818                                         &misconfigured->theEvent);
4819                         break;
4820                 case LPFC_LINK_NUMBER_1:
4821                         status = bf_get(lpfc_sli_misconfigured_port1_state,
4822                                         &misconfigured->theEvent);
4823                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
4824                                         &misconfigured->theEvent);
4825                         break;
4826                 case LPFC_LINK_NUMBER_2:
4827                         status = bf_get(lpfc_sli_misconfigured_port2_state,
4828                                         &misconfigured->theEvent);
4829                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
4830                                         &misconfigured->theEvent);
4831                         break;
4832                 case LPFC_LINK_NUMBER_3:
4833                         status = bf_get(lpfc_sli_misconfigured_port3_state,
4834                                         &misconfigured->theEvent);
4835                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
4836                                         &misconfigured->theEvent);
4837                         break;
4838                 default:
4839                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4840                                         "3296 "
4841                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4842                                         "event: Invalid link %d",
4843                                         phba->sli4_hba.lnk_info.lnk_no);
4844                         return;
4845                 }
4846
4847                 /* Skip if optic state unchanged */
4848                 if (phba->sli4_hba.lnk_info.optic_state == status)
4849                         return;
4850
4851                 switch (status) {
4852                 case LPFC_SLI_EVENT_STATUS_VALID:
4853                         sprintf(message, "Physical Link is functional");
4854                         break;
4855                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4856                         sprintf(message, "Optics faulted/incorrectly "
4857                                 "installed/not installed - Reseat optics, "
4858                                 "if issue not resolved, replace.");
4859                         break;
4860                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4861                         sprintf(message,
4862                                 "Optics of two types installed - Remove one "
4863                                 "optic or install matching pair of optics.");
4864                         break;
4865                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4866                         sprintf(message, "Incompatible optics - Replace with "
4867                                 "compatible optics for card to function.");
4868                         break;
4869                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4870                         sprintf(message, "Unqualified optics - Replace with "
4871                                 "Avago optics for Warranty and Technical "
4872                                 "Support - Link is%s operational",
4873                                 (operational) ? " not" : "");
4874                         break;
4875                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4876                         sprintf(message, "Uncertified optics - Replace with "
4877                                 "Avago-certified optics to enable link "
4878                                 "operation - Link is%s operational",
4879                                 (operational) ? " not" : "");
4880                         break;
4881                 default:
4882                         /* firmware is reporting a status we don't know about */
4883                         sprintf(message, "Unknown event status x%02x", status);
4884                         break;
4885                 }
4886                 phba->sli4_hba.lnk_info.optic_state = status;
4887                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4888                                 "3176 Port Name %c %s\n", port_name, message);
4889                 break;
4890         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4891                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4892                                 "3192 Remote DPort Test Initiated - "
4893                                 "Event Data1:x%08x Event Data2: x%08x\n",
4894                                 acqe_sli->event_data1, acqe_sli->event_data2);
4895                 break;
4896         default:
4897                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4898                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4899                                 "x%08x SLI Event Type:%d\n",
4900                                 acqe_sli->event_data1, acqe_sli->event_data2,
4901                                 evt_type);
4902                 break;
4903         }
4904 }
4905
4906 /**
4907  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4908  * @vport: pointer to vport data structure.
4909  *
4910  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4911  * response to a CVL event.
4912  *
4913  * Return the pointer to the ndlp with the vport if successful, otherwise
4914  * return NULL.
4915  **/
4916 static struct lpfc_nodelist *
4917 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4918 {
4919         struct lpfc_nodelist *ndlp;
4920         struct Scsi_Host *shost;
4921         struct lpfc_hba *phba;
4922
4923         if (!vport)
4924                 return NULL;
4925         phba = vport->phba;
4926         if (!phba)
4927                 return NULL;
4928         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4929         if (!ndlp) {
4930                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4931                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
4932                 if (!ndlp)
4933                         return 0;
4934                 /* Set the node type */
4935                 ndlp->nlp_type |= NLP_FABRIC;
4936                 /* Put ndlp onto node list */
4937                 lpfc_enqueue_node(vport, ndlp);
4938         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4939                 /* re-setup ndlp without removing from node list */
4940                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4941                 if (!ndlp)
4942                         return 0;
4943         }
4944         if ((phba->pport->port_state < LPFC_FLOGI) &&
4945                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4946                 return NULL;
4947         /* If virtual link is not yet instantiated ignore CVL */
4948         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4949                 && (vport->port_state != LPFC_VPORT_FAILED))
4950                 return NULL;
4951         shost = lpfc_shost_from_vport(vport);
4952         if (!shost)
4953                 return NULL;
4954         lpfc_linkdown_port(vport);
4955         lpfc_cleanup_pending_mbox(vport);
4956         spin_lock_irq(shost->host_lock);
4957         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4958         spin_unlock_irq(shost->host_lock);
4959
4960         return ndlp;
4961 }
4962
4963 /**
4964  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4965  * @vport: pointer to lpfc hba data structure.
4966  *
4967  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4968  * response to a FCF dead event.
4969  **/
4970 static void
4971 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4972 {
4973         struct lpfc_vport **vports;
4974         int i;
4975
4976         vports = lpfc_create_vport_work_array(phba);
4977         if (vports)
4978                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4979                         lpfc_sli4_perform_vport_cvl(vports[i]);
4980         lpfc_destroy_vport_work_array(phba, vports);
4981 }
4982
4983 /**
4984  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4985  * @phba: pointer to lpfc hba data structure.
4986  * @acqe_link: pointer to the async fcoe completion queue entry.
4987  *
4988  * This routine is to handle the SLI4 asynchronous fcoe event.
4989  **/
4990 static void
4991 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4992                         struct lpfc_acqe_fip *acqe_fip)
4993 {
4994         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4995         int rc;
4996         struct lpfc_vport *vport;
4997         struct lpfc_nodelist *ndlp;
4998         struct Scsi_Host  *shost;
4999         int active_vlink_present;
5000         struct lpfc_vport **vports;
5001         int i;
5002
5003         phba->fc_eventTag = acqe_fip->event_tag;
5004         phba->fcoe_eventtag = acqe_fip->event_tag;
5005         switch (event_type) {
5006         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5007         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5008                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5009                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5010                                         LOG_DISCOVERY,
5011                                         "2546 New FCF event, evt_tag:x%x, "
5012                                         "index:x%x\n",
5013                                         acqe_fip->event_tag,
5014                                         acqe_fip->index);
5015                 else
5016                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5017                                         LOG_DISCOVERY,
5018                                         "2788 FCF param modified event, "
5019                                         "evt_tag:x%x, index:x%x\n",
5020                                         acqe_fip->event_tag,
5021                                         acqe_fip->index);
5022                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5023                         /*
5024                          * During period of FCF discovery, read the FCF
5025                          * table record indexed by the event to update
5026                          * FCF roundrobin failover eligible FCF bmask.
5027                          */
5028                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5029                                         LOG_DISCOVERY,
5030                                         "2779 Read FCF (x%x) for updating "
5031                                         "roundrobin FCF failover bmask\n",
5032                                         acqe_fip->index);
5033                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5034                 }
5035
5036                 /* If the FCF discovery is in progress, do nothing. */
5037                 spin_lock_irq(&phba->hbalock);
5038                 if (phba->hba_flag & FCF_TS_INPROG) {
5039                         spin_unlock_irq(&phba->hbalock);
5040                         break;
5041                 }
5042                 /* If fast FCF failover rescan event is pending, do nothing */
5043                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
5044                         spin_unlock_irq(&phba->hbalock);
5045                         break;
5046                 }
5047
5048                 /* If the FCF has been in discovered state, do nothing. */
5049                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5050                         spin_unlock_irq(&phba->hbalock);
5051                         break;
5052                 }
5053                 spin_unlock_irq(&phba->hbalock);
5054
5055                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5056                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5057                                 "2770 Start FCF table scan per async FCF "
5058                                 "event, evt_tag:x%x, index:x%x\n",
5059                                 acqe_fip->event_tag, acqe_fip->index);
5060                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5061                                                      LPFC_FCOE_FCF_GET_FIRST);
5062                 if (rc)
5063                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5064                                         "2547 Issue FCF scan read FCF mailbox "
5065                                         "command failed (x%x)\n", rc);
5066                 break;
5067
5068         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5069                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5070                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5071                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5072                         acqe_fip->event_tag);
5073                 break;
5074
5075         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5076                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5077                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5078                         "2549 FCF (x%x) disconnected from network, "
5079                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5080                 /*
5081                  * If we are in the middle of FCF failover process, clear
5082                  * the corresponding FCF bit in the roundrobin bitmap.
5083                  */
5084                 spin_lock_irq(&phba->hbalock);
5085                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5086                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5087                         spin_unlock_irq(&phba->hbalock);
5088                         /* Update FLOGI FCF failover eligible FCF bmask */
5089                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5090                         break;
5091                 }
5092                 spin_unlock_irq(&phba->hbalock);
5093
5094                 /* If the event is not for currently used fcf do nothing */
5095                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5096                         break;
5097
5098                 /*
5099                  * Otherwise, request the port to rediscover the entire FCF
5100                  * table for a fast recovery from case that the current FCF
5101                  * is no longer valid as we are not in the middle of FCF
5102                  * failover process already.
5103                  */
5104                 spin_lock_irq(&phba->hbalock);
5105                 /* Mark the fast failover process in progress */
5106                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5107                 spin_unlock_irq(&phba->hbalock);
5108
5109                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5110                                 "2771 Start FCF fast failover process due to "
5111                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5112                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5113                 rc = lpfc_sli4_redisc_fcf_table(phba);
5114                 if (rc) {
5115                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5116                                         LOG_DISCOVERY,
5117                                         "2772 Issue FCF rediscover mailbox "
5118                                         "command failed, fail through to FCF "
5119                                         "dead event\n");
5120                         spin_lock_irq(&phba->hbalock);
5121                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5122                         spin_unlock_irq(&phba->hbalock);
5123                         /*
5124                          * Last resort will fail over by treating this
5125                          * as a link down to FCF registration.
5126                          */
5127                         lpfc_sli4_fcf_dead_failthrough(phba);
5128                 } else {
5129                         /* Reset FCF roundrobin bmask for new discovery */
5130                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5131                         /*
5132                          * Handling fast FCF failover to a DEAD FCF event is
5133                          * considered equalivant to receiving CVL to all vports.
5134                          */
5135                         lpfc_sli4_perform_all_vport_cvl(phba);
5136                 }
5137                 break;
5138         case LPFC_FIP_EVENT_TYPE_CVL:
5139                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5140                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5141                         "2718 Clear Virtual Link Received for VPI 0x%x"
5142                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5143
5144                 vport = lpfc_find_vport_by_vpid(phba,
5145                                                 acqe_fip->index);
5146                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5147                 if (!ndlp)
5148                         break;
5149                 active_vlink_present = 0;
5150
5151                 vports = lpfc_create_vport_work_array(phba);
5152                 if (vports) {
5153                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5154                                         i++) {
5155                                 if ((!(vports[i]->fc_flag &
5156                                         FC_VPORT_CVL_RCVD)) &&
5157                                         (vports[i]->port_state > LPFC_FDISC)) {
5158                                         active_vlink_present = 1;
5159                                         break;
5160                                 }
5161                         }
5162                         lpfc_destroy_vport_work_array(phba, vports);
5163                 }
5164
5165                 /*
5166                  * Don't re-instantiate if vport is marked for deletion.
5167                  * If we are here first then vport_delete is going to wait
5168                  * for discovery to complete.
5169                  */
5170                 if (!(vport->load_flag & FC_UNLOADING) &&
5171                                         active_vlink_present) {
5172                         /*
5173                          * If there are other active VLinks present,
5174                          * re-instantiate the Vlink using FDISC.
5175                          */
5176                         mod_timer(&ndlp->nlp_delayfunc,
5177                                   jiffies + msecs_to_jiffies(1000));
5178                         shost = lpfc_shost_from_vport(vport);
5179                         spin_lock_irq(shost->host_lock);
5180                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5181                         spin_unlock_irq(shost->host_lock);
5182                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5183                         vport->port_state = LPFC_FDISC;
5184                 } else {
5185                         /*
5186                          * Otherwise, we request port to rediscover
5187                          * the entire FCF table for a fast recovery
5188                          * from possible case that the current FCF
5189                          * is no longer valid if we are not already
5190                          * in the FCF failover process.
5191                          */
5192                         spin_lock_irq(&phba->hbalock);
5193                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5194                                 spin_unlock_irq(&phba->hbalock);
5195                                 break;
5196                         }
5197                         /* Mark the fast failover process in progress */
5198                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5199                         spin_unlock_irq(&phba->hbalock);
5200                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5201                                         LOG_DISCOVERY,
5202                                         "2773 Start FCF failover per CVL, "
5203                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5204                         rc = lpfc_sli4_redisc_fcf_table(phba);
5205                         if (rc) {
5206                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5207                                                 LOG_DISCOVERY,
5208                                                 "2774 Issue FCF rediscover "
5209                                                 "mailbox command failed, "
5210                                                 "through to CVL event\n");
5211                                 spin_lock_irq(&phba->hbalock);
5212                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5213                                 spin_unlock_irq(&phba->hbalock);
5214                                 /*
5215                                  * Last resort will be re-try on the
5216                                  * the current registered FCF entry.
5217                                  */
5218                                 lpfc_retry_pport_discovery(phba);
5219                         } else
5220                                 /*
5221                                  * Reset FCF roundrobin bmask for new
5222                                  * discovery.
5223                                  */
5224                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5225                 }
5226                 break;
5227         default:
5228                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5229                         "0288 Unknown FCoE event type 0x%x event tag "
5230                         "0x%x\n", event_type, acqe_fip->event_tag);
5231                 break;
5232         }
5233 }
5234
5235 /**
5236  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5237  * @phba: pointer to lpfc hba data structure.
5238  * @acqe_link: pointer to the async dcbx completion queue entry.
5239  *
5240  * This routine is to handle the SLI4 asynchronous dcbx event.
5241  **/
5242 static void
5243 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5244                          struct lpfc_acqe_dcbx *acqe_dcbx)
5245 {
5246         phba->fc_eventTag = acqe_dcbx->event_tag;
5247         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5248                         "0290 The SLI4 DCBX asynchronous event is not "
5249                         "handled yet\n");
5250 }
5251
5252 /**
5253  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5254  * @phba: pointer to lpfc hba data structure.
5255  * @acqe_link: pointer to the async grp5 completion queue entry.
5256  *
5257  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5258  * is an asynchronous notified of a logical link speed change.  The Port
5259  * reports the logical link speed in units of 10Mbps.
5260  **/
5261 static void
5262 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5263                          struct lpfc_acqe_grp5 *acqe_grp5)
5264 {
5265         uint16_t prev_ll_spd;
5266
5267         phba->fc_eventTag = acqe_grp5->event_tag;
5268         phba->fcoe_eventtag = acqe_grp5->event_tag;
5269         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5270         phba->sli4_hba.link_state.logical_speed =
5271                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5272         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5273                         "2789 GRP5 Async Event: Updating logical link speed "
5274                         "from %dMbps to %dMbps\n", prev_ll_spd,
5275                         phba->sli4_hba.link_state.logical_speed);
5276 }
5277
5278 /**
5279  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5280  * @phba: pointer to lpfc hba data structure.
5281  *
5282  * This routine is invoked by the worker thread to process all the pending
5283  * SLI4 asynchronous events.
5284  **/
5285 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5286 {
5287         struct lpfc_cq_event *cq_event;
5288
5289         /* First, declare the async event has been handled */
5290         spin_lock_irq(&phba->hbalock);
5291         phba->hba_flag &= ~ASYNC_EVENT;
5292         spin_unlock_irq(&phba->hbalock);
5293         /* Now, handle all the async events */
5294         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5295                 /* Get the first event from the head of the event queue */
5296                 spin_lock_irq(&phba->hbalock);
5297                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5298                                  cq_event, struct lpfc_cq_event, list);
5299                 spin_unlock_irq(&phba->hbalock);
5300                 /* Process the asynchronous event */
5301                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5302                 case LPFC_TRAILER_CODE_LINK:
5303                         lpfc_sli4_async_link_evt(phba,
5304                                                  &cq_event->cqe.acqe_link);
5305                         break;
5306                 case LPFC_TRAILER_CODE_FCOE:
5307                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5308                         break;
5309                 case LPFC_TRAILER_CODE_DCBX:
5310                         lpfc_sli4_async_dcbx_evt(phba,
5311                                                  &cq_event->cqe.acqe_dcbx);
5312                         break;
5313                 case LPFC_TRAILER_CODE_GRP5:
5314                         lpfc_sli4_async_grp5_evt(phba,
5315                                                  &cq_event->cqe.acqe_grp5);
5316                         break;
5317                 case LPFC_TRAILER_CODE_FC:
5318                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5319                         break;
5320                 case LPFC_TRAILER_CODE_SLI:
5321                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5322                         break;
5323                 default:
5324                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5325                                         "1804 Invalid asynchrous event code: "
5326                                         "x%x\n", bf_get(lpfc_trailer_code,
5327                                         &cq_event->cqe.mcqe_cmpl));
5328                         break;
5329                 }
5330                 /* Free the completion event processed to the free pool */
5331                 lpfc_sli4_cq_event_release(phba, cq_event);
5332         }
5333 }
5334
5335 /**
5336  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5337  * @phba: pointer to lpfc hba data structure.
5338  *
5339  * This routine is invoked by the worker thread to process FCF table
5340  * rediscovery pending completion event.
5341  **/
5342 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5343 {
5344         int rc;
5345
5346         spin_lock_irq(&phba->hbalock);
5347         /* Clear FCF rediscovery timeout event */
5348         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5349         /* Clear driver fast failover FCF record flag */
5350         phba->fcf.failover_rec.flag = 0;
5351         /* Set state for FCF fast failover */
5352         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5353         spin_unlock_irq(&phba->hbalock);
5354
5355         /* Scan FCF table from the first entry to re-discover SAN */
5356         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5357                         "2777 Start post-quiescent FCF table scan\n");
5358         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5359         if (rc)
5360                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5361                                 "2747 Issue FCF scan read FCF mailbox "
5362                                 "command failed 0x%x\n", rc);
5363 }
5364
5365 /**
5366  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5367  * @phba: pointer to lpfc hba data structure.
5368  * @dev_grp: The HBA PCI-Device group number.
5369  *
5370  * This routine is invoked to set up the per HBA PCI-Device group function
5371  * API jump table entries.
5372  *
5373  * Return: 0 if success, otherwise -ENODEV
5374  **/
5375 int
5376 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5377 {
5378         int rc;
5379
5380         /* Set up lpfc PCI-device group */
5381         phba->pci_dev_grp = dev_grp;
5382
5383         /* The LPFC_PCI_DEV_OC uses SLI4 */
5384         if (dev_grp == LPFC_PCI_DEV_OC)
5385                 phba->sli_rev = LPFC_SLI_REV4;
5386
5387         /* Set up device INIT API function jump table */
5388         rc = lpfc_init_api_table_setup(phba, dev_grp);
5389         if (rc)
5390                 return -ENODEV;
5391         /* Set up SCSI API function jump table */
5392         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5393         if (rc)
5394                 return -ENODEV;
5395         /* Set up SLI API function jump table */
5396         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5397         if (rc)
5398                 return -ENODEV;
5399         /* Set up MBOX API function jump table */
5400         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5401         if (rc)
5402                 return -ENODEV;
5403
5404         return 0;
5405 }
5406
5407 /**
5408  * lpfc_log_intr_mode - Log the active interrupt mode
5409  * @phba: pointer to lpfc hba data structure.
5410  * @intr_mode: active interrupt mode adopted.
5411  *
5412  * This routine it invoked to log the currently used active interrupt mode
5413  * to the device.
5414  **/
5415 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5416 {
5417         switch (intr_mode) {
5418         case 0:
5419                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5420                                 "0470 Enable INTx interrupt mode.\n");
5421                 break;
5422         case 1:
5423                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5424                                 "0481 Enabled MSI interrupt mode.\n");
5425                 break;
5426         case 2:
5427                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5428                                 "0480 Enabled MSI-X interrupt mode.\n");
5429                 break;
5430         default:
5431                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5432                                 "0482 Illegal interrupt mode.\n");
5433                 break;
5434         }
5435         return;
5436 }
5437
5438 /**
5439  * lpfc_enable_pci_dev - Enable a generic PCI device.
5440  * @phba: pointer to lpfc hba data structure.
5441  *
5442  * This routine is invoked to enable the PCI device that is common to all
5443  * PCI devices.
5444  *
5445  * Return codes
5446  *      0 - successful
5447  *      other values - error
5448  **/
5449 static int
5450 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5451 {
5452         struct pci_dev *pdev;
5453
5454         /* Obtain PCI device reference */
5455         if (!phba->pcidev)
5456                 goto out_error;
5457         else
5458                 pdev = phba->pcidev;
5459         /* Enable PCI device */
5460         if (pci_enable_device_mem(pdev))
5461                 goto out_error;
5462         /* Request PCI resource for the device */
5463         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5464                 goto out_disable_device;
5465         /* Set up device as PCI master and save state for EEH */
5466         pci_set_master(pdev);
5467         pci_try_set_mwi(pdev);
5468         pci_save_state(pdev);
5469
5470         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5471         if (pci_is_pcie(pdev))
5472                 pdev->needs_freset = 1;
5473
5474         return 0;
5475
5476 out_disable_device:
5477         pci_disable_device(pdev);
5478 out_error:
5479         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5480                         "1401 Failed to enable pci device\n");
5481         return -ENODEV;
5482 }
5483
5484 /**
5485  * lpfc_disable_pci_dev - Disable a generic PCI device.
5486  * @phba: pointer to lpfc hba data structure.
5487  *
5488  * This routine is invoked to disable the PCI device that is common to all
5489  * PCI devices.
5490  **/
5491 static void
5492 lpfc_disable_pci_dev(struct lpfc_hba *phba)
5493 {
5494         struct pci_dev *pdev;
5495
5496         /* Obtain PCI device reference */
5497         if (!phba->pcidev)
5498                 return;
5499         else
5500                 pdev = phba->pcidev;
5501         /* Release PCI resource and disable PCI device */
5502         pci_release_mem_regions(pdev);
5503         pci_disable_device(pdev);
5504
5505         return;
5506 }
5507
5508 /**
5509  * lpfc_reset_hba - Reset a hba
5510  * @phba: pointer to lpfc hba data structure.
5511  *
5512  * This routine is invoked to reset a hba device. It brings the HBA
5513  * offline, performs a board restart, and then brings the board back
5514  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
5515  * on outstanding mailbox commands.
5516  **/
5517 void
5518 lpfc_reset_hba(struct lpfc_hba *phba)
5519 {
5520         /* If resets are disabled then set error state and return. */
5521         if (!phba->cfg_enable_hba_reset) {
5522                 phba->link_state = LPFC_HBA_ERROR;
5523                 return;
5524         }
5525         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
5526                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
5527         else
5528                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
5529         lpfc_offline(phba);
5530         lpfc_sli_brdrestart(phba);
5531         lpfc_online(phba);
5532         lpfc_unblock_mgmt_io(phba);
5533 }
5534
5535 /**
5536  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
5537  * @phba: pointer to lpfc hba data structure.
5538  *
5539  * This function enables the PCI SR-IOV virtual functions to a physical
5540  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5541  * enable the number of virtual functions to the physical function. As
5542  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5543  * API call does not considered as an error condition for most of the device.
5544  **/
5545 uint16_t
5546 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
5547 {
5548         struct pci_dev *pdev = phba->pcidev;
5549         uint16_t nr_virtfn;
5550         int pos;
5551
5552         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
5553         if (pos == 0)
5554                 return 0;
5555
5556         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
5557         return nr_virtfn;
5558 }
5559
5560 /**
5561  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
5562  * @phba: pointer to lpfc hba data structure.
5563  * @nr_vfn: number of virtual functions to be enabled.
5564  *
5565  * This function enables the PCI SR-IOV virtual functions to a physical
5566  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5567  * enable the number of virtual functions to the physical function. As
5568  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5569  * API call does not considered as an error condition for most of the device.
5570  **/
5571 int
5572 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
5573 {
5574         struct pci_dev *pdev = phba->pcidev;
5575         uint16_t max_nr_vfn;
5576         int rc;
5577
5578         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
5579         if (nr_vfn > max_nr_vfn) {
5580                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5581                                 "3057 Requested vfs (%d) greater than "
5582                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
5583                 return -EINVAL;
5584         }
5585
5586         rc = pci_enable_sriov(pdev, nr_vfn);
5587         if (rc) {
5588                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5589                                 "2806 Failed to enable sriov on this device "
5590                                 "with vfn number nr_vf:%d, rc:%d\n",
5591                                 nr_vfn, rc);
5592         } else
5593                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5594                                 "2807 Successful enable sriov on this device "
5595                                 "with vfn number nr_vf:%d\n", nr_vfn);
5596         return rc;
5597 }
5598
5599 /**
5600  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5601  * @phba: pointer to lpfc hba data structure.
5602  *
5603  * This routine is invoked to set up the driver internal resources before the
5604  * device specific resource setup to support the HBA device it attached to.
5605  *
5606  * Return codes
5607  *      0 - successful
5608  *      other values - error
5609  **/
5610 static int
5611 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5612 {
5613         struct lpfc_sli *psli = &phba->sli;
5614
5615         /*
5616          * Driver resources common to all SLI revisions
5617          */
5618         atomic_set(&phba->fast_event_count, 0);
5619         spin_lock_init(&phba->hbalock);
5620
5621         /* Initialize ndlp management spinlock */
5622         spin_lock_init(&phba->ndlp_lock);
5623
5624         INIT_LIST_HEAD(&phba->port_list);
5625         INIT_LIST_HEAD(&phba->work_list);
5626         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5627
5628         /* Initialize the wait queue head for the kernel thread */
5629         init_waitqueue_head(&phba->work_waitq);
5630
5631         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5632                         "1403 Protocols supported %s %s %s\n",
5633                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5634                                 "SCSI" : " "),
5635                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5636                                 "NVME" : " "),
5637                         (phba->nvmet_support ? "NVMET" : " "));
5638
5639         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5640                 /* Initialize the scsi buffer list used by driver for scsi IO */
5641                 spin_lock_init(&phba->scsi_buf_list_get_lock);
5642                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5643                 spin_lock_init(&phba->scsi_buf_list_put_lock);
5644                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5645         }
5646
5647         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5648                 (phba->nvmet_support == 0)) {
5649                 /* Initialize the NVME buffer list used by driver for NVME IO */
5650                 spin_lock_init(&phba->nvme_buf_list_get_lock);
5651                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5652                 phba->get_nvme_bufs = 0;
5653                 spin_lock_init(&phba->nvme_buf_list_put_lock);
5654                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5655                 phba->put_nvme_bufs = 0;
5656         }
5657
5658         /* Initialize the fabric iocb list */
5659         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5660
5661         /* Initialize list to save ELS buffers */
5662         INIT_LIST_HEAD(&phba->elsbuf);
5663
5664         /* Initialize FCF connection rec list */
5665         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5666
5667         /* Initialize OAS configuration list */
5668         spin_lock_init(&phba->devicelock);
5669         INIT_LIST_HEAD(&phba->luns);
5670
5671         /* MBOX heartbeat timer */
5672         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
5673         /* Fabric block timer */
5674         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
5675         /* EA polling mode timer */
5676         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
5677         /* Heartbeat timer */
5678         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
5679
5680         return 0;
5681 }
5682
5683 /**
5684  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5685  * @phba: pointer to lpfc hba data structure.
5686  *
5687  * This routine is invoked to set up the driver internal resources specific to
5688  * support the SLI-3 HBA device it attached to.
5689  *
5690  * Return codes
5691  * 0 - successful
5692  * other values - error
5693  **/
5694 static int
5695 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5696 {
5697         int rc;
5698
5699         /*
5700          * Initialize timers used by driver
5701          */
5702
5703         /* FCP polling mode timer */
5704         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
5705
5706         /* Host attention work mask setup */
5707         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5708         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5709
5710         /* Get all the module params for configuring this host */
5711         lpfc_get_cfgparam(phba);
5712         /* Set up phase-1 common device driver resources */
5713
5714         rc = lpfc_setup_driver_resource_phase1(phba);
5715         if (rc)
5716                 return -ENODEV;
5717
5718         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5719                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5720                 /* check for menlo minimum sg count */
5721                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5722                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5723         }
5724
5725         if (!phba->sli.sli3_ring)
5726                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
5727                                               sizeof(struct lpfc_sli_ring),
5728                                               GFP_KERNEL);
5729         if (!phba->sli.sli3_ring)
5730                 return -ENOMEM;
5731
5732         /*
5733          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5734          * used to create the sg_dma_buf_pool must be dynamically calculated.
5735          */
5736
5737         /* Initialize the host templates the configured values. */
5738         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5739         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5740         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5741
5742         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5743         if (phba->cfg_enable_bg) {
5744                 /*
5745                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5746                  * the FCP rsp, and a BDE for each. Sice we have no control
5747                  * over how many protection data segments the SCSI Layer
5748                  * will hand us (ie: there could be one for every block
5749                  * in the IO), we just allocate enough BDEs to accomidate
5750                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5751                  * minimize the risk of running out.
5752                  */
5753                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5754                         sizeof(struct fcp_rsp) +
5755                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5756
5757                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5758                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5759
5760                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5761                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5762         } else {
5763                 /*
5764                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5765                  * the FCP rsp, a BDE for each, and a BDE for up to
5766                  * cfg_sg_seg_cnt data segments.
5767                  */
5768                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5769                         sizeof(struct fcp_rsp) +
5770                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5771
5772                 /* Total BDEs in BPL for scsi_sg_list */
5773                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5774         }
5775
5776         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5777                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5778                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5779                         phba->cfg_total_seg_cnt);
5780
5781         phba->max_vpi = LPFC_MAX_VPI;
5782         /* This will be set to correct value after config_port mbox */
5783         phba->max_vports = 0;
5784
5785         /*
5786          * Initialize the SLI Layer to run with lpfc HBAs.
5787          */
5788         lpfc_sli_setup(phba);
5789         lpfc_sli_queue_init(phba);
5790
5791         /* Allocate device driver memory */
5792         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5793                 return -ENOMEM;
5794
5795         /*
5796          * Enable sr-iov virtual functions if supported and configured
5797          * through the module parameter.
5798          */
5799         if (phba->cfg_sriov_nr_virtfn > 0) {
5800                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5801                                                  phba->cfg_sriov_nr_virtfn);
5802                 if (rc) {
5803                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5804                                         "2808 Requested number of SR-IOV "
5805                                         "virtual functions (%d) is not "
5806                                         "supported\n",
5807                                         phba->cfg_sriov_nr_virtfn);
5808                         phba->cfg_sriov_nr_virtfn = 0;
5809                 }
5810         }
5811
5812         return 0;
5813 }
5814
5815 /**
5816  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5817  * @phba: pointer to lpfc hba data structure.
5818  *
5819  * This routine is invoked to unset the driver internal resources set up
5820  * specific for supporting the SLI-3 HBA device it attached to.
5821  **/
5822 static void
5823 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5824 {
5825         /* Free device driver memory allocated */
5826         lpfc_mem_free_all(phba);
5827
5828         return;
5829 }
5830
5831 /**
5832  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5833  * @phba: pointer to lpfc hba data structure.
5834  *
5835  * This routine is invoked to set up the driver internal resources specific to
5836  * support the SLI-4 HBA device it attached to.
5837  *
5838  * Return codes
5839  *      0 - successful
5840  *      other values - error
5841  **/
5842 static int
5843 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5844 {
5845         LPFC_MBOXQ_t *mboxq;
5846         MAILBOX_t *mb;
5847         int rc, i, max_buf_size;
5848         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5849         struct lpfc_mqe *mqe;
5850         int longs;
5851         int fof_vectors = 0;
5852         int extra;
5853         uint64_t wwn;
5854         u32 if_type;
5855         u32 if_fam;
5856
5857         phba->sli4_hba.num_online_cpu = num_online_cpus();
5858         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
5859         phba->sli4_hba.curr_disp_cpu = 0;
5860
5861         /* Get all the module params for configuring this host */
5862         lpfc_get_cfgparam(phba);
5863
5864         /* Set up phase-1 common device driver resources */
5865         rc = lpfc_setup_driver_resource_phase1(phba);
5866         if (rc)
5867                 return -ENODEV;
5868
5869         /* Before proceed, wait for POST done and device ready */
5870         rc = lpfc_sli4_post_status_check(phba);
5871         if (rc)
5872                 return -ENODEV;
5873
5874         /*
5875          * Initialize timers used by driver
5876          */
5877
5878         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
5879
5880         /* FCF rediscover timer */
5881         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
5882
5883         /*
5884          * Control structure for handling external multi-buffer mailbox
5885          * command pass-through.
5886          */
5887         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5888                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5889         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5890
5891         phba->max_vpi = LPFC_MAX_VPI;
5892
5893         /* This will be set to correct value after the read_config mbox */
5894         phba->max_vports = 0;
5895
5896         /* Program the default value of vlan_id and fc_map */
5897         phba->valid_vlan = 0;
5898         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5899         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5900         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5901
5902         /*
5903          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5904          * we will associate a new ring, for each EQ/CQ/WQ tuple.
5905          * The WQ create will allocate the ring.
5906          */
5907
5908         /*
5909          * 1 for cmd, 1 for rsp, NVME adds an extra one
5910          * for boundary conditions in its max_sgl_segment template.
5911          */
5912         extra = 2;
5913         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
5914                 extra++;
5915
5916         /*
5917          * It doesn't matter what family our adapter is in, we are
5918          * limited to 2 Pages, 512 SGEs, for our SGL.
5919          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5920          */
5921         max_buf_size = (2 * SLI4_PAGE_SIZE);
5922         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - extra)
5923                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - extra;
5924
5925         /*
5926          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
5927          * used to create the sg_dma_buf_pool must be calculated.
5928          */
5929         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
5930                 /*
5931                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
5932                  * the FCP rsp, and a SGE. Sice we have no control
5933                  * over how many protection segments the SCSI Layer
5934                  * will hand us (ie: there could be one for every block
5935                  * in the IO), just allocate enough SGEs to accomidate
5936                  * our max amount and we need to limit lpfc_sg_seg_cnt
5937                  * to minimize the risk of running out.
5938                  */
5939                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5940                                 sizeof(struct fcp_rsp) + max_buf_size;
5941
5942                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5943                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5944
5945                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5946                         phba->cfg_sg_seg_cnt =
5947                                 LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5948         } else {
5949                 /*
5950                  * The scsi_buf for a regular I/O holds the FCP cmnd,
5951                  * the FCP rsp, a SGE for each, and a SGE for up to
5952                  * cfg_sg_seg_cnt data segments.
5953                  */
5954                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5955                                 sizeof(struct fcp_rsp) +
5956                                 ((phba->cfg_sg_seg_cnt + extra) *
5957                                 sizeof(struct sli4_sge));
5958
5959                 /* Total SGEs for scsi_sg_list */
5960                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
5961
5962                 /*
5963                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
5964                  * need to post 1 page for the SGL.
5965                  */
5966         }
5967
5968         /* Initialize the host templates with the updated values. */
5969         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5970         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5971         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5972
5973         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5974                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5975         else
5976                 phba->cfg_sg_dma_buf_size =
5977                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5978
5979         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5980                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5981                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5982                         phba->cfg_total_seg_cnt);
5983
5984         /* Initialize buffer queue management fields */
5985         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
5986         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5987         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5988
5989         /*
5990          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5991          */
5992         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5993                 /* Initialize the Abort scsi buffer list used by driver */
5994                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5995                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5996         }
5997
5998         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
5999                 /* Initialize the Abort nvme buffer list used by driver */
6000                 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
6001                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
6002                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6003                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6004         }
6005
6006         /* This abort list used by worker thread */
6007         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6008         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6009
6010         /*
6011          * Initialize driver internal slow-path work queues
6012          */
6013
6014         /* Driver internel slow-path CQ Event pool */
6015         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6016         /* Response IOCB work queue list */
6017         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6018         /* Asynchronous event CQ Event work queue list */
6019         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6020         /* Fast-path XRI aborted CQ Event work queue list */
6021         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6022         /* Slow-path XRI aborted CQ Event work queue list */
6023         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6024         /* Receive queue CQ Event work queue list */
6025         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6026
6027         /* Initialize extent block lists. */
6028         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6029         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6030         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6031         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6032
6033         /* Initialize mboxq lists. If the early init routines fail
6034          * these lists need to be correctly initialized.
6035          */
6036         INIT_LIST_HEAD(&phba->sli.mboxq);
6037         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6038
6039         /* initialize optic_state to 0xFF */
6040         phba->sli4_hba.lnk_info.optic_state = 0xff;
6041
6042         /* Allocate device driver memory */
6043         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6044         if (rc)
6045                 return -ENOMEM;
6046
6047         /* IF Type 2 ports get initialized now. */
6048         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6049             LPFC_SLI_INTF_IF_TYPE_2) {
6050                 rc = lpfc_pci_function_reset(phba);
6051                 if (unlikely(rc)) {
6052                         rc = -ENODEV;
6053                         goto out_free_mem;
6054                 }
6055                 phba->temp_sensor_support = 1;
6056         }
6057
6058         /* Create the bootstrap mailbox command */
6059         rc = lpfc_create_bootstrap_mbox(phba);
6060         if (unlikely(rc))
6061                 goto out_free_mem;
6062
6063         /* Set up the host's endian order with the device. */
6064         rc = lpfc_setup_endian_order(phba);
6065         if (unlikely(rc))
6066                 goto out_free_bsmbx;
6067
6068         /* Set up the hba's configuration parameters. */
6069         rc = lpfc_sli4_read_config(phba);
6070         if (unlikely(rc))
6071                 goto out_free_bsmbx;
6072         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6073         if (unlikely(rc))
6074                 goto out_free_bsmbx;
6075
6076         /* IF Type 0 ports get initialized now. */
6077         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6078             LPFC_SLI_INTF_IF_TYPE_0) {
6079                 rc = lpfc_pci_function_reset(phba);
6080                 if (unlikely(rc))
6081                         goto out_free_bsmbx;
6082         }
6083
6084         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6085                                                        GFP_KERNEL);
6086         if (!mboxq) {
6087                 rc = -ENOMEM;
6088                 goto out_free_bsmbx;
6089         }
6090
6091         /* Check for NVMET being configured */
6092         phba->nvmet_support = 0;
6093         if (lpfc_enable_nvmet_cnt) {
6094
6095                 /* First get WWN of HBA instance */
6096                 lpfc_read_nv(phba, mboxq);
6097                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6098                 if (rc != MBX_SUCCESS) {
6099                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6100                                         "6016 Mailbox failed , mbxCmd x%x "
6101                                         "READ_NV, mbxStatus x%x\n",
6102                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6103                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6104                         mempool_free(mboxq, phba->mbox_mem_pool);
6105                         rc = -EIO;
6106                         goto out_free_bsmbx;
6107                 }
6108                 mb = &mboxq->u.mb;
6109                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6110                        sizeof(uint64_t));
6111                 wwn = cpu_to_be64(wwn);
6112                 phba->sli4_hba.wwnn.u.name = wwn;
6113                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6114                        sizeof(uint64_t));
6115                 /* wwn is WWPN of HBA instance */
6116                 wwn = cpu_to_be64(wwn);
6117                 phba->sli4_hba.wwpn.u.name = wwn;
6118
6119                 /* Check to see if it matches any module parameter */
6120                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6121                         if (wwn == lpfc_enable_nvmet[i]) {
6122 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6123                                 if (lpfc_nvmet_mem_alloc(phba))
6124                                         break;
6125
6126                                 phba->nvmet_support = 1; /* a match */
6127
6128                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6129                                                 "6017 NVME Target %016llx\n",
6130                                                 wwn);
6131 #else
6132                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6133                                                 "6021 Can't enable NVME Target."
6134                                                 " NVME_TARGET_FC infrastructure"
6135                                                 " is not in kernel\n");
6136 #endif
6137                                 break;
6138                         }
6139                 }
6140         }
6141
6142         lpfc_nvme_mod_param_dep(phba);
6143
6144         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6145         lpfc_supported_pages(mboxq);
6146         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6147         if (!rc) {
6148                 mqe = &mboxq->u.mqe;
6149                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6150                        LPFC_MAX_SUPPORTED_PAGES);
6151                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6152                         switch (pn_page[i]) {
6153                         case LPFC_SLI4_PARAMETERS:
6154                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6155                                 break;
6156                         default:
6157                                 break;
6158                         }
6159                 }
6160                 /* Read the port's SLI4 Parameters capabilities if supported. */
6161                 if (phba->sli4_hba.pc_sli4_params.supported)
6162                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6163                 if (rc) {
6164                         mempool_free(mboxq, phba->mbox_mem_pool);
6165                         rc = -EIO;
6166                         goto out_free_bsmbx;
6167                 }
6168         }
6169
6170         /*
6171          * Get sli4 parameters that override parameters from Port capabilities.
6172          * If this call fails, it isn't critical unless the SLI4 parameters come
6173          * back in conflict.
6174          */
6175         rc = lpfc_get_sli4_parameters(phba, mboxq);
6176         if (rc) {
6177                 if_type = bf_get(lpfc_sli_intf_if_type,
6178                                  &phba->sli4_hba.sli_intf);
6179                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6180                                 &phba->sli4_hba.sli_intf);
6181                 if (phba->sli4_hba.extents_in_use &&
6182                     phba->sli4_hba.rpi_hdrs_in_use) {
6183                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6184                                 "2999 Unsupported SLI4 Parameters "
6185                                 "Extents and RPI headers enabled.\n");
6186                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6187                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6188                                 mempool_free(mboxq, phba->mbox_mem_pool);
6189                                 rc = -EIO;
6190                                 goto out_free_bsmbx;
6191                         }
6192                 }
6193                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6194                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6195                         mempool_free(mboxq, phba->mbox_mem_pool);
6196                         rc = -EIO;
6197                         goto out_free_bsmbx;
6198                 }
6199         }
6200
6201         mempool_free(mboxq, phba->mbox_mem_pool);
6202
6203         /* Verify OAS is supported */
6204         lpfc_sli4_oas_verify(phba);
6205         if (phba->cfg_fof)
6206                 fof_vectors = 1;
6207
6208         /* Verify all the SLI4 queues */
6209         rc = lpfc_sli4_queue_verify(phba);
6210         if (rc)
6211                 goto out_free_bsmbx;
6212
6213         /* Create driver internal CQE event pool */
6214         rc = lpfc_sli4_cq_event_pool_create(phba);
6215         if (rc)
6216                 goto out_free_bsmbx;
6217
6218         /* Initialize sgl lists per host */
6219         lpfc_init_sgl_list(phba);
6220
6221         /* Allocate and initialize active sgl array */
6222         rc = lpfc_init_active_sgl_array(phba);
6223         if (rc) {
6224                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6225                                 "1430 Failed to initialize sgl list.\n");
6226                 goto out_destroy_cq_event_pool;
6227         }
6228         rc = lpfc_sli4_init_rpi_hdrs(phba);
6229         if (rc) {
6230                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6231                                 "1432 Failed to initialize rpi headers.\n");
6232                 goto out_free_active_sgl;
6233         }
6234
6235         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6236         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6237         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6238                                          GFP_KERNEL);
6239         if (!phba->fcf.fcf_rr_bmask) {
6240                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6241                                 "2759 Failed allocate memory for FCF round "
6242                                 "robin failover bmask\n");
6243                 rc = -ENOMEM;
6244                 goto out_remove_rpi_hdrs;
6245         }
6246
6247         phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6248                                                 sizeof(struct lpfc_hba_eq_hdl),
6249                                                 GFP_KERNEL);
6250         if (!phba->sli4_hba.hba_eq_hdl) {
6251                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6252                                 "2572 Failed allocate memory for "
6253                                 "fast-path per-EQ handle array\n");
6254                 rc = -ENOMEM;
6255                 goto out_free_fcf_rr_bmask;
6256         }
6257
6258         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6259                                         sizeof(struct lpfc_vector_map_info),
6260                                         GFP_KERNEL);
6261         if (!phba->sli4_hba.cpu_map) {
6262                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6263                                 "3327 Failed allocate memory for msi-x "
6264                                 "interrupt vector mapping\n");
6265                 rc = -ENOMEM;
6266                 goto out_free_hba_eq_hdl;
6267         }
6268         if (lpfc_used_cpu == NULL) {
6269                 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6270                                                 GFP_KERNEL);
6271                 if (!lpfc_used_cpu) {
6272                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6273                                         "3335 Failed allocate memory for msi-x "
6274                                         "interrupt vector mapping\n");
6275                         kfree(phba->sli4_hba.cpu_map);
6276                         rc = -ENOMEM;
6277                         goto out_free_hba_eq_hdl;
6278                 }
6279                 for (i = 0; i < lpfc_present_cpu; i++)
6280                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6281         }
6282
6283         /*
6284          * Enable sr-iov virtual functions if supported and configured
6285          * through the module parameter.
6286          */
6287         if (phba->cfg_sriov_nr_virtfn > 0) {
6288                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6289                                                  phba->cfg_sriov_nr_virtfn);
6290                 if (rc) {
6291                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6292                                         "3020 Requested number of SR-IOV "
6293                                         "virtual functions (%d) is not "
6294                                         "supported\n",
6295                                         phba->cfg_sriov_nr_virtfn);
6296                         phba->cfg_sriov_nr_virtfn = 0;
6297                 }
6298         }
6299
6300         return 0;
6301
6302 out_free_hba_eq_hdl:
6303         kfree(phba->sli4_hba.hba_eq_hdl);
6304 out_free_fcf_rr_bmask:
6305         kfree(phba->fcf.fcf_rr_bmask);
6306 out_remove_rpi_hdrs:
6307         lpfc_sli4_remove_rpi_hdrs(phba);
6308 out_free_active_sgl:
6309         lpfc_free_active_sgl(phba);
6310 out_destroy_cq_event_pool:
6311         lpfc_sli4_cq_event_pool_destroy(phba);
6312 out_free_bsmbx:
6313         lpfc_destroy_bootstrap_mbox(phba);
6314 out_free_mem:
6315         lpfc_mem_free(phba);
6316         return rc;
6317 }
6318
6319 /**
6320  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6321  * @phba: pointer to lpfc hba data structure.
6322  *
6323  * This routine is invoked to unset the driver internal resources set up
6324  * specific for supporting the SLI-4 HBA device it attached to.
6325  **/
6326 static void
6327 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6328 {
6329         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6330
6331         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6332         kfree(phba->sli4_hba.cpu_map);
6333         phba->sli4_hba.num_present_cpu = 0;
6334         phba->sli4_hba.num_online_cpu = 0;
6335         phba->sli4_hba.curr_disp_cpu = 0;
6336
6337         /* Free memory allocated for fast-path work queue handles */
6338         kfree(phba->sli4_hba.hba_eq_hdl);
6339
6340         /* Free the allocated rpi headers. */
6341         lpfc_sli4_remove_rpi_hdrs(phba);
6342         lpfc_sli4_remove_rpis(phba);
6343
6344         /* Free eligible FCF index bmask */
6345         kfree(phba->fcf.fcf_rr_bmask);
6346
6347         /* Free the ELS sgl list */
6348         lpfc_free_active_sgl(phba);
6349         lpfc_free_els_sgl_list(phba);
6350         lpfc_free_nvmet_sgl_list(phba);
6351
6352         /* Free the completion queue EQ event pool */
6353         lpfc_sli4_cq_event_release_all(phba);
6354         lpfc_sli4_cq_event_pool_destroy(phba);
6355
6356         /* Release resource identifiers. */
6357         lpfc_sli4_dealloc_resource_identifiers(phba);
6358
6359         /* Free the bsmbx region. */
6360         lpfc_destroy_bootstrap_mbox(phba);
6361
6362         /* Free the SLI Layer memory with SLI4 HBAs */
6363         lpfc_mem_free_all(phba);
6364
6365         /* Free the current connect table */
6366         list_for_each_entry_safe(conn_entry, next_conn_entry,
6367                 &phba->fcf_conn_rec_list, list) {
6368                 list_del_init(&conn_entry->list);
6369                 kfree(conn_entry);
6370         }
6371
6372         return;
6373 }
6374
6375 /**
6376  * lpfc_init_api_table_setup - Set up init api function jump table
6377  * @phba: The hba struct for which this call is being executed.
6378  * @dev_grp: The HBA PCI-Device group number.
6379  *
6380  * This routine sets up the device INIT interface API function jump table
6381  * in @phba struct.
6382  *
6383  * Returns: 0 - success, -ENODEV - failure.
6384  **/
6385 int
6386 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6387 {
6388         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6389         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6390         phba->lpfc_selective_reset = lpfc_selective_reset;
6391         switch (dev_grp) {
6392         case LPFC_PCI_DEV_LP:
6393                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6394                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6395                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6396                 break;
6397         case LPFC_PCI_DEV_OC:
6398                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6399                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6400                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6401                 break;
6402         default:
6403                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6404                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6405                                 dev_grp);
6406                 return -ENODEV;
6407                 break;
6408         }
6409         return 0;
6410 }
6411
6412 /**
6413  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6414  * @phba: pointer to lpfc hba data structure.
6415  *
6416  * This routine is invoked to set up the driver internal resources after the
6417  * device specific resource setup to support the HBA device it attached to.
6418  *
6419  * Return codes
6420  *      0 - successful
6421  *      other values - error
6422  **/
6423 static int
6424 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6425 {
6426         int error;
6427
6428         /* Startup the kernel thread for this host adapter. */
6429         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6430                                           "lpfc_worker_%d", phba->brd_no);
6431         if (IS_ERR(phba->worker_thread)) {
6432                 error = PTR_ERR(phba->worker_thread);
6433                 return error;
6434         }
6435
6436         /* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */
6437         if (phba->sli_rev == LPFC_SLI_REV4)
6438                 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6439         else
6440                 phba->wq = NULL;
6441
6442         return 0;
6443 }
6444
6445 /**
6446  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6447  * @phba: pointer to lpfc hba data structure.
6448  *
6449  * This routine is invoked to unset the driver internal resources set up after
6450  * the device specific resource setup for supporting the HBA device it
6451  * attached to.
6452  **/
6453 static void
6454 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6455 {
6456         if (phba->wq) {
6457                 flush_workqueue(phba->wq);
6458                 destroy_workqueue(phba->wq);
6459                 phba->wq = NULL;
6460         }
6461
6462         /* Stop kernel worker thread */
6463         if (phba->worker_thread)
6464                 kthread_stop(phba->worker_thread);
6465 }
6466
6467 /**
6468  * lpfc_free_iocb_list - Free iocb list.
6469  * @phba: pointer to lpfc hba data structure.
6470  *
6471  * This routine is invoked to free the driver's IOCB list and memory.
6472  **/
6473 void
6474 lpfc_free_iocb_list(struct lpfc_hba *phba)
6475 {
6476         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6477
6478         spin_lock_irq(&phba->hbalock);
6479         list_for_each_entry_safe(iocbq_entry, iocbq_next,
6480                                  &phba->lpfc_iocb_list, list) {
6481                 list_del(&iocbq_entry->list);
6482                 kfree(iocbq_entry);
6483                 phba->total_iocbq_bufs--;
6484         }
6485         spin_unlock_irq(&phba->hbalock);
6486
6487         return;
6488 }
6489
6490 /**
6491  * lpfc_init_iocb_list - Allocate and initialize iocb list.
6492  * @phba: pointer to lpfc hba data structure.
6493  *
6494  * This routine is invoked to allocate and initizlize the driver's IOCB
6495  * list and set up the IOCB tag array accordingly.
6496  *
6497  * Return codes
6498  *      0 - successful
6499  *      other values - error
6500  **/
6501 int
6502 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6503 {
6504         struct lpfc_iocbq *iocbq_entry = NULL;
6505         uint16_t iotag;
6506         int i;
6507
6508         /* Initialize and populate the iocb list per host.  */
6509         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6510         for (i = 0; i < iocb_count; i++) {
6511                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6512                 if (iocbq_entry == NULL) {
6513                         printk(KERN_ERR "%s: only allocated %d iocbs of "
6514                                 "expected %d count. Unloading driver.\n",
6515                                 __func__, i, LPFC_IOCB_LIST_CNT);
6516                         goto out_free_iocbq;
6517                 }
6518
6519                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6520                 if (iotag == 0) {
6521                         kfree(iocbq_entry);
6522                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
6523                                 "Unloading driver.\n", __func__);
6524                         goto out_free_iocbq;
6525                 }
6526                 iocbq_entry->sli4_lxritag = NO_XRI;
6527                 iocbq_entry->sli4_xritag = NO_XRI;
6528
6529                 spin_lock_irq(&phba->hbalock);
6530                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6531                 phba->total_iocbq_bufs++;
6532                 spin_unlock_irq(&phba->hbalock);
6533         }
6534
6535         return 0;
6536
6537 out_free_iocbq:
6538         lpfc_free_iocb_list(phba);
6539
6540         return -ENOMEM;
6541 }
6542
6543 /**
6544  * lpfc_free_sgl_list - Free a given sgl list.
6545  * @phba: pointer to lpfc hba data structure.
6546  * @sglq_list: pointer to the head of sgl list.
6547  *
6548  * This routine is invoked to free a give sgl list and memory.
6549  **/
6550 void
6551 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6552 {
6553         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6554
6555         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6556                 list_del(&sglq_entry->list);
6557                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6558                 kfree(sglq_entry);
6559         }
6560 }
6561
6562 /**
6563  * lpfc_free_els_sgl_list - Free els sgl list.
6564  * @phba: pointer to lpfc hba data structure.
6565  *
6566  * This routine is invoked to free the driver's els sgl list and memory.
6567  **/
6568 static void
6569 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6570 {
6571         LIST_HEAD(sglq_list);
6572
6573         /* Retrieve all els sgls from driver list */
6574         spin_lock_irq(&phba->hbalock);
6575         spin_lock(&phba->sli4_hba.sgl_list_lock);
6576         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6577         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6578         spin_unlock_irq(&phba->hbalock);
6579
6580         /* Now free the sgl list */
6581         lpfc_free_sgl_list(phba, &sglq_list);
6582 }
6583
6584 /**
6585  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6586  * @phba: pointer to lpfc hba data structure.
6587  *
6588  * This routine is invoked to free the driver's nvmet sgl list and memory.
6589  **/
6590 static void
6591 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6592 {
6593         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6594         LIST_HEAD(sglq_list);
6595
6596         /* Retrieve all nvmet sgls from driver list */
6597         spin_lock_irq(&phba->hbalock);
6598         spin_lock(&phba->sli4_hba.sgl_list_lock);
6599         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6600         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6601         spin_unlock_irq(&phba->hbalock);
6602
6603         /* Now free the sgl list */
6604         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6605                 list_del(&sglq_entry->list);
6606                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6607                 kfree(sglq_entry);
6608         }
6609
6610         /* Update the nvmet_xri_cnt to reflect no current sgls.
6611          * The next initialization cycle sets the count and allocates
6612          * the sgls over again.
6613          */
6614         phba->sli4_hba.nvmet_xri_cnt = 0;
6615 }
6616
6617 /**
6618  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6619  * @phba: pointer to lpfc hba data structure.
6620  *
6621  * This routine is invoked to allocate the driver's active sgl memory.
6622  * This array will hold the sglq_entry's for active IOs.
6623  **/
6624 static int
6625 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6626 {
6627         int size;
6628         size = sizeof(struct lpfc_sglq *);
6629         size *= phba->sli4_hba.max_cfg_param.max_xri;
6630
6631         phba->sli4_hba.lpfc_sglq_active_list =
6632                 kzalloc(size, GFP_KERNEL);
6633         if (!phba->sli4_hba.lpfc_sglq_active_list)
6634                 return -ENOMEM;
6635         return 0;
6636 }
6637
6638 /**
6639  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6640  * @phba: pointer to lpfc hba data structure.
6641  *
6642  * This routine is invoked to walk through the array of active sglq entries
6643  * and free all of the resources.
6644  * This is just a place holder for now.
6645  **/
6646 static void
6647 lpfc_free_active_sgl(struct lpfc_hba *phba)
6648 {
6649         kfree(phba->sli4_hba.lpfc_sglq_active_list);
6650 }
6651
6652 /**
6653  * lpfc_init_sgl_list - Allocate and initialize sgl list.
6654  * @phba: pointer to lpfc hba data structure.
6655  *
6656  * This routine is invoked to allocate and initizlize the driver's sgl
6657  * list and set up the sgl xritag tag array accordingly.
6658  *
6659  **/
6660 static void
6661 lpfc_init_sgl_list(struct lpfc_hba *phba)
6662 {
6663         /* Initialize and populate the sglq list per host/VF. */
6664         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6665         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6666         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6667         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6668
6669         /* els xri-sgl book keeping */
6670         phba->sli4_hba.els_xri_cnt = 0;
6671
6672         /* scsi xri-buffer book keeping */
6673         phba->sli4_hba.scsi_xri_cnt = 0;
6674
6675         /* nvme xri-buffer book keeping */
6676         phba->sli4_hba.nvme_xri_cnt = 0;
6677 }
6678
6679 /**
6680  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6681  * @phba: pointer to lpfc hba data structure.
6682  *
6683  * This routine is invoked to post rpi header templates to the
6684  * port for those SLI4 ports that do not support extents.  This routine
6685  * posts a PAGE_SIZE memory region to the port to hold up to
6686  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
6687  * and should be called only when interrupts are disabled.
6688  *
6689  * Return codes
6690  *      0 - successful
6691  *      -ERROR - otherwise.
6692  **/
6693 int
6694 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6695 {
6696         int rc = 0;
6697         struct lpfc_rpi_hdr *rpi_hdr;
6698
6699         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6700         if (!phba->sli4_hba.rpi_hdrs_in_use)
6701                 return rc;
6702         if (phba->sli4_hba.extents_in_use)
6703                 return -EIO;
6704
6705         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6706         if (!rpi_hdr) {
6707                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6708                                 "0391 Error during rpi post operation\n");
6709                 lpfc_sli4_remove_rpis(phba);
6710                 rc = -ENODEV;
6711         }
6712
6713         return rc;
6714 }
6715
6716 /**
6717  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6718  * @phba: pointer to lpfc hba data structure.
6719  *
6720  * This routine is invoked to allocate a single 4KB memory region to
6721  * support rpis and stores them in the phba.  This single region
6722  * provides support for up to 64 rpis.  The region is used globally
6723  * by the device.
6724  *
6725  * Returns:
6726  *   A valid rpi hdr on success.
6727  *   A NULL pointer on any failure.
6728  **/
6729 struct lpfc_rpi_hdr *
6730 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6731 {
6732         uint16_t rpi_limit, curr_rpi_range;
6733         struct lpfc_dmabuf *dmabuf;
6734         struct lpfc_rpi_hdr *rpi_hdr;
6735
6736         /*
6737          * If the SLI4 port supports extents, posting the rpi header isn't
6738          * required.  Set the expected maximum count and let the actual value
6739          * get set when extents are fully allocated.
6740          */
6741         if (!phba->sli4_hba.rpi_hdrs_in_use)
6742                 return NULL;
6743         if (phba->sli4_hba.extents_in_use)
6744                 return NULL;
6745
6746         /* The limit on the logical index is just the max_rpi count. */
6747         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
6748
6749         spin_lock_irq(&phba->hbalock);
6750         /*
6751          * Establish the starting RPI in this header block.  The starting
6752          * rpi is normalized to a zero base because the physical rpi is
6753          * port based.
6754          */
6755         curr_rpi_range = phba->sli4_hba.next_rpi;
6756         spin_unlock_irq(&phba->hbalock);
6757
6758         /* Reached full RPI range */
6759         if (curr_rpi_range == rpi_limit)
6760                 return NULL;
6761
6762         /*
6763          * First allocate the protocol header region for the port.  The
6764          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6765          */
6766         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6767         if (!dmabuf)
6768                 return NULL;
6769
6770         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6771                                            LPFC_HDR_TEMPLATE_SIZE,
6772                                            &dmabuf->phys, GFP_KERNEL);
6773         if (!dmabuf->virt) {
6774                 rpi_hdr = NULL;
6775                 goto err_free_dmabuf;
6776         }
6777
6778         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6779                 rpi_hdr = NULL;
6780                 goto err_free_coherent;
6781         }
6782
6783         /* Save the rpi header data for cleanup later. */
6784         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6785         if (!rpi_hdr)
6786                 goto err_free_coherent;
6787
6788         rpi_hdr->dmabuf = dmabuf;
6789         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6790         rpi_hdr->page_count = 1;
6791         spin_lock_irq(&phba->hbalock);
6792
6793         /* The rpi_hdr stores the logical index only. */
6794         rpi_hdr->start_rpi = curr_rpi_range;
6795         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
6796         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6797
6798         spin_unlock_irq(&phba->hbalock);
6799         return rpi_hdr;
6800
6801  err_free_coherent:
6802         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6803                           dmabuf->virt, dmabuf->phys);
6804  err_free_dmabuf:
6805         kfree(dmabuf);
6806         return NULL;
6807 }
6808
6809 /**
6810  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6811  * @phba: pointer to lpfc hba data structure.
6812  *
6813  * This routine is invoked to remove all memory resources allocated
6814  * to support rpis for SLI4 ports not supporting extents. This routine
6815  * presumes the caller has released all rpis consumed by fabric or port
6816  * logins and is prepared to have the header pages removed.
6817  **/
6818 void
6819 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6820 {
6821         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6822
6823         if (!phba->sli4_hba.rpi_hdrs_in_use)
6824                 goto exit;
6825
6826         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6827                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6828                 list_del(&rpi_hdr->list);
6829                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6830                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6831                 kfree(rpi_hdr->dmabuf);
6832                 kfree(rpi_hdr);
6833         }
6834  exit:
6835         /* There are no rpis available to the port now. */
6836         phba->sli4_hba.next_rpi = 0;
6837 }
6838
6839 /**
6840  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6841  * @pdev: pointer to pci device data structure.
6842  *
6843  * This routine is invoked to allocate the driver hba data structure for an
6844  * HBA device. If the allocation is successful, the phba reference to the
6845  * PCI device data structure is set.
6846  *
6847  * Return codes
6848  *      pointer to @phba - successful
6849  *      NULL - error
6850  **/
6851 static struct lpfc_hba *
6852 lpfc_hba_alloc(struct pci_dev *pdev)
6853 {
6854         struct lpfc_hba *phba;
6855
6856         /* Allocate memory for HBA structure */
6857         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6858         if (!phba) {
6859                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6860                 return NULL;
6861         }
6862
6863         /* Set reference to PCI device in HBA structure */
6864         phba->pcidev = pdev;
6865
6866         /* Assign an unused board number */
6867         phba->brd_no = lpfc_get_instance();
6868         if (phba->brd_no < 0) {
6869                 kfree(phba);
6870                 return NULL;
6871         }
6872         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6873
6874         spin_lock_init(&phba->ct_ev_lock);
6875         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6876
6877         return phba;
6878 }
6879
6880 /**
6881  * lpfc_hba_free - Free driver hba data structure with a device.
6882  * @phba: pointer to lpfc hba data structure.
6883  *
6884  * This routine is invoked to free the driver hba data structure with an
6885  * HBA device.
6886  **/
6887 static void
6888 lpfc_hba_free(struct lpfc_hba *phba)
6889 {
6890         /* Release the driver assigned board number */
6891         idr_remove(&lpfc_hba_index, phba->brd_no);
6892
6893         /* Free memory allocated with sli3 rings */
6894         kfree(phba->sli.sli3_ring);
6895         phba->sli.sli3_ring = NULL;
6896
6897         kfree(phba);
6898         return;
6899 }
6900
6901 /**
6902  * lpfc_create_shost - Create hba physical port with associated scsi host.
6903  * @phba: pointer to lpfc hba data structure.
6904  *
6905  * This routine is invoked to create HBA physical port and associate a SCSI
6906  * host with it.
6907  *
6908  * Return codes
6909  *      0 - successful
6910  *      other values - error
6911  **/
6912 static int
6913 lpfc_create_shost(struct lpfc_hba *phba)
6914 {
6915         struct lpfc_vport *vport;
6916         struct Scsi_Host  *shost;
6917
6918         /* Initialize HBA FC structure */
6919         phba->fc_edtov = FF_DEF_EDTOV;
6920         phba->fc_ratov = FF_DEF_RATOV;
6921         phba->fc_altov = FF_DEF_ALTOV;
6922         phba->fc_arbtov = FF_DEF_ARBTOV;
6923
6924         atomic_set(&phba->sdev_cnt, 0);
6925         atomic_set(&phba->fc4ScsiInputRequests, 0);
6926         atomic_set(&phba->fc4ScsiOutputRequests, 0);
6927         atomic_set(&phba->fc4ScsiControlRequests, 0);
6928         atomic_set(&phba->fc4ScsiIoCmpls, 0);
6929         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6930         if (!vport)
6931                 return -ENODEV;
6932
6933         shost = lpfc_shost_from_vport(vport);
6934         phba->pport = vport;
6935
6936         if (phba->nvmet_support) {
6937                 /* Only 1 vport (pport) will support NVME target */
6938                 if (phba->txrdy_payload_pool == NULL) {
6939                         phba->txrdy_payload_pool = dma_pool_create(
6940                                 "txrdy_pool", &phba->pcidev->dev,
6941                                 TXRDY_PAYLOAD_LEN, 16, 0);
6942                         if (phba->txrdy_payload_pool) {
6943                                 phba->targetport = NULL;
6944                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
6945                                 lpfc_printf_log(phba, KERN_INFO,
6946                                                 LOG_INIT | LOG_NVME_DISC,
6947                                                 "6076 NVME Target Found\n");
6948                         }
6949                 }
6950         }
6951
6952         lpfc_debugfs_initialize(vport);
6953         /* Put reference to SCSI host to driver's device private data */
6954         pci_set_drvdata(phba->pcidev, shost);
6955
6956         /*
6957          * At this point we are fully registered with PSA. In addition,
6958          * any initial discovery should be completed.
6959          */
6960         vport->load_flag |= FC_ALLOW_FDMI;
6961         if (phba->cfg_enable_SmartSAN ||
6962             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6963
6964                 /* Setup appropriate attribute masks */
6965                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6966                 if (phba->cfg_enable_SmartSAN)
6967                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6968                 else
6969                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6970         }
6971         return 0;
6972 }
6973
6974 /**
6975  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6976  * @phba: pointer to lpfc hba data structure.
6977  *
6978  * This routine is invoked to destroy HBA physical port and the associated
6979  * SCSI host.
6980  **/
6981 static void
6982 lpfc_destroy_shost(struct lpfc_hba *phba)
6983 {
6984         struct lpfc_vport *vport = phba->pport;
6985
6986         /* Destroy physical port that associated with the SCSI host */
6987         destroy_port(vport);
6988
6989         return;
6990 }
6991
6992 /**
6993  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6994  * @phba: pointer to lpfc hba data structure.
6995  * @shost: the shost to be used to detect Block guard settings.
6996  *
6997  * This routine sets up the local Block guard protocol settings for @shost.
6998  * This routine also allocates memory for debugging bg buffers.
6999  **/
7000 static void
7001 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7002 {
7003         uint32_t old_mask;
7004         uint32_t old_guard;
7005
7006         int pagecnt = 10;
7007         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7008                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7009                                 "1478 Registering BlockGuard with the "
7010                                 "SCSI layer\n");
7011
7012                 old_mask = phba->cfg_prot_mask;
7013                 old_guard = phba->cfg_prot_guard;
7014
7015                 /* Only allow supported values */
7016                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7017                         SHOST_DIX_TYPE0_PROTECTION |
7018                         SHOST_DIX_TYPE1_PROTECTION);
7019                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7020                                          SHOST_DIX_GUARD_CRC);
7021
7022                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7023                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7024                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7025
7026                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7027                         if ((old_mask != phba->cfg_prot_mask) ||
7028                                 (old_guard != phba->cfg_prot_guard))
7029                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7030                                         "1475 Registering BlockGuard with the "
7031                                         "SCSI layer: mask %d  guard %d\n",
7032                                         phba->cfg_prot_mask,
7033                                         phba->cfg_prot_guard);
7034
7035                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7036                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7037                 } else
7038                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7039                                 "1479 Not Registering BlockGuard with the SCSI "
7040                                 "layer, Bad protection parameters: %d %d\n",
7041                                 old_mask, old_guard);
7042         }
7043
7044         if (!_dump_buf_data) {
7045                 while (pagecnt) {
7046                         spin_lock_init(&_dump_buf_lock);
7047                         _dump_buf_data =
7048                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7049                         if (_dump_buf_data) {
7050                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7051                                         "9043 BLKGRD: allocated %d pages for "
7052                                        "_dump_buf_data at 0x%p\n",
7053                                        (1 << pagecnt), _dump_buf_data);
7054                                 _dump_buf_data_order = pagecnt;
7055                                 memset(_dump_buf_data, 0,
7056                                        ((1 << PAGE_SHIFT) << pagecnt));
7057                                 break;
7058                         } else
7059                                 --pagecnt;
7060                 }
7061                 if (!_dump_buf_data_order)
7062                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7063                                 "9044 BLKGRD: ERROR unable to allocate "
7064                                "memory for hexdump\n");
7065         } else
7066                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7067                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
7068                        "\n", _dump_buf_data);
7069         if (!_dump_buf_dif) {
7070                 while (pagecnt) {
7071                         _dump_buf_dif =
7072                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7073                         if (_dump_buf_dif) {
7074                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7075                                         "9046 BLKGRD: allocated %d pages for "
7076                                        "_dump_buf_dif at 0x%p\n",
7077                                        (1 << pagecnt), _dump_buf_dif);
7078                                 _dump_buf_dif_order = pagecnt;
7079                                 memset(_dump_buf_dif, 0,
7080                                        ((1 << PAGE_SHIFT) << pagecnt));
7081                                 break;
7082                         } else
7083                                 --pagecnt;
7084                 }
7085                 if (!_dump_buf_dif_order)
7086                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7087                         "9047 BLKGRD: ERROR unable to allocate "
7088                                "memory for hexdump\n");
7089         } else
7090                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7091                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7092                        _dump_buf_dif);
7093 }
7094
7095 /**
7096  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7097  * @phba: pointer to lpfc hba data structure.
7098  *
7099  * This routine is invoked to perform all the necessary post initialization
7100  * setup for the device.
7101  **/
7102 static void
7103 lpfc_post_init_setup(struct lpfc_hba *phba)
7104 {
7105         struct Scsi_Host  *shost;
7106         struct lpfc_adapter_event_header adapter_event;
7107
7108         /* Get the default values for Model Name and Description */
7109         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7110
7111         /*
7112          * hba setup may have changed the hba_queue_depth so we need to
7113          * adjust the value of can_queue.
7114          */
7115         shost = pci_get_drvdata(phba->pcidev);
7116         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7117         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
7118                 lpfc_setup_bg(phba, shost);
7119
7120         lpfc_host_attrib_init(shost);
7121
7122         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7123                 spin_lock_irq(shost->host_lock);
7124                 lpfc_poll_start_timer(phba);
7125                 spin_unlock_irq(shost->host_lock);
7126         }
7127
7128         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7129                         "0428 Perform SCSI scan\n");
7130         /* Send board arrival event to upper layer */
7131         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7132         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7133         fc_host_post_vendor_event(shost, fc_get_event_number(),
7134                                   sizeof(adapter_event),
7135                                   (char *) &adapter_event,
7136                                   LPFC_NL_VENDOR_ID);
7137         return;
7138 }
7139
7140 /**
7141  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7142  * @phba: pointer to lpfc hba data structure.
7143  *
7144  * This routine is invoked to set up the PCI device memory space for device
7145  * with SLI-3 interface spec.
7146  *
7147  * Return codes
7148  *      0 - successful
7149  *      other values - error
7150  **/
7151 static int
7152 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7153 {
7154         struct pci_dev *pdev;
7155         unsigned long bar0map_len, bar2map_len;
7156         int i, hbq_count;
7157         void *ptr;
7158         int error = -ENODEV;
7159
7160         /* Obtain PCI device reference */
7161         if (!phba->pcidev)
7162                 return error;
7163         else
7164                 pdev = phba->pcidev;
7165
7166         /* Set the device DMA mask size */
7167         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7168          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7169                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7170                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7171                         return error;
7172                 }
7173         }
7174
7175         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7176          * required by each mapping.
7177          */
7178         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7179         bar0map_len = pci_resource_len(pdev, 0);
7180
7181         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7182         bar2map_len = pci_resource_len(pdev, 2);
7183
7184         /* Map HBA SLIM to a kernel virtual address. */
7185         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7186         if (!phba->slim_memmap_p) {
7187                 dev_printk(KERN_ERR, &pdev->dev,
7188                            "ioremap failed for SLIM memory.\n");
7189                 goto out;
7190         }
7191
7192         /* Map HBA Control Registers to a kernel virtual address. */
7193         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7194         if (!phba->ctrl_regs_memmap_p) {
7195                 dev_printk(KERN_ERR, &pdev->dev,
7196                            "ioremap failed for HBA control registers.\n");
7197                 goto out_iounmap_slim;
7198         }
7199
7200         /* Allocate memory for SLI-2 structures */
7201         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7202                                                 &phba->slim2p.phys, GFP_KERNEL);
7203         if (!phba->slim2p.virt)
7204                 goto out_iounmap;
7205
7206         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7207         phba->mbox_ext = (phba->slim2p.virt +
7208                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7209         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7210         phba->IOCBs = (phba->slim2p.virt +
7211                        offsetof(struct lpfc_sli2_slim, IOCBs));
7212
7213         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7214                                                  lpfc_sli_hbq_size(),
7215                                                  &phba->hbqslimp.phys,
7216                                                  GFP_KERNEL);
7217         if (!phba->hbqslimp.virt)
7218                 goto out_free_slim;
7219
7220         hbq_count = lpfc_sli_hbq_count();
7221         ptr = phba->hbqslimp.virt;
7222         for (i = 0; i < hbq_count; ++i) {
7223                 phba->hbqs[i].hbq_virt = ptr;
7224                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7225                 ptr += (lpfc_hbq_defs[i]->entry_count *
7226                         sizeof(struct lpfc_hbq_entry));
7227         }
7228         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7229         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7230
7231         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7232
7233         phba->MBslimaddr = phba->slim_memmap_p;
7234         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7235         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7236         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7237         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7238
7239         return 0;
7240
7241 out_free_slim:
7242         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7243                           phba->slim2p.virt, phba->slim2p.phys);
7244 out_iounmap:
7245         iounmap(phba->ctrl_regs_memmap_p);
7246 out_iounmap_slim:
7247         iounmap(phba->slim_memmap_p);
7248 out:
7249         return error;
7250 }
7251
7252 /**
7253  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7254  * @phba: pointer to lpfc hba data structure.
7255  *
7256  * This routine is invoked to unset the PCI device memory space for device
7257  * with SLI-3 interface spec.
7258  **/
7259 static void
7260 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7261 {
7262         struct pci_dev *pdev;
7263
7264         /* Obtain PCI device reference */
7265         if (!phba->pcidev)
7266                 return;
7267         else
7268                 pdev = phba->pcidev;
7269
7270         /* Free coherent DMA memory allocated */
7271         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7272                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7273         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7274                           phba->slim2p.virt, phba->slim2p.phys);
7275
7276         /* I/O memory unmap */
7277         iounmap(phba->ctrl_regs_memmap_p);
7278         iounmap(phba->slim_memmap_p);
7279
7280         return;
7281 }
7282
7283 /**
7284  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7285  * @phba: pointer to lpfc hba data structure.
7286  *
7287  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7288  * done and check status.
7289  *
7290  * Return 0 if successful, otherwise -ENODEV.
7291  **/
7292 int
7293 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7294 {
7295         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7296         struct lpfc_register reg_data;
7297         int i, port_error = 0;
7298         uint32_t if_type;
7299
7300         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7301         memset(&reg_data, 0, sizeof(reg_data));
7302         if (!phba->sli4_hba.PSMPHRregaddr)
7303                 return -ENODEV;
7304
7305         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7306         for (i = 0; i < 3000; i++) {
7307                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7308                         &portsmphr_reg.word0) ||
7309                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7310                         /* Port has a fatal POST error, break out */
7311                         port_error = -ENODEV;
7312                         break;
7313                 }
7314                 if (LPFC_POST_STAGE_PORT_READY ==
7315                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7316                         break;
7317                 msleep(10);
7318         }
7319
7320         /*
7321          * If there was a port error during POST, then don't proceed with
7322          * other register reads as the data may not be valid.  Just exit.
7323          */
7324         if (port_error) {
7325                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7326                         "1408 Port Failed POST - portsmphr=0x%x, "
7327                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7328                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7329                         portsmphr_reg.word0,
7330                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7331                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7332                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7333                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7334                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7335                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7336                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7337                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7338         } else {
7339                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7340                                 "2534 Device Info: SLIFamily=0x%x, "
7341                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7342                                 "SLIHint_2=0x%x, FT=0x%x\n",
7343                                 bf_get(lpfc_sli_intf_sli_family,
7344                                        &phba->sli4_hba.sli_intf),
7345                                 bf_get(lpfc_sli_intf_slirev,
7346                                        &phba->sli4_hba.sli_intf),
7347                                 bf_get(lpfc_sli_intf_if_type,
7348                                        &phba->sli4_hba.sli_intf),
7349                                 bf_get(lpfc_sli_intf_sli_hint1,
7350                                        &phba->sli4_hba.sli_intf),
7351                                 bf_get(lpfc_sli_intf_sli_hint2,
7352                                        &phba->sli4_hba.sli_intf),
7353                                 bf_get(lpfc_sli_intf_func_type,
7354                                        &phba->sli4_hba.sli_intf));
7355                 /*
7356                  * Check for other Port errors during the initialization
7357                  * process.  Fail the load if the port did not come up
7358                  * correctly.
7359                  */
7360                 if_type = bf_get(lpfc_sli_intf_if_type,
7361                                  &phba->sli4_hba.sli_intf);
7362                 switch (if_type) {
7363                 case LPFC_SLI_INTF_IF_TYPE_0:
7364                         phba->sli4_hba.ue_mask_lo =
7365                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7366                         phba->sli4_hba.ue_mask_hi =
7367                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7368                         uerrlo_reg.word0 =
7369                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7370                         uerrhi_reg.word0 =
7371                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7372                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7373                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7374                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7375                                                 "1422 Unrecoverable Error "
7376                                                 "Detected during POST "
7377                                                 "uerr_lo_reg=0x%x, "
7378                                                 "uerr_hi_reg=0x%x, "
7379                                                 "ue_mask_lo_reg=0x%x, "
7380                                                 "ue_mask_hi_reg=0x%x\n",
7381                                                 uerrlo_reg.word0,
7382                                                 uerrhi_reg.word0,
7383                                                 phba->sli4_hba.ue_mask_lo,
7384                                                 phba->sli4_hba.ue_mask_hi);
7385                                 port_error = -ENODEV;
7386                         }
7387                         break;
7388                 case LPFC_SLI_INTF_IF_TYPE_2:
7389                 case LPFC_SLI_INTF_IF_TYPE_6:
7390                         /* Final checks.  The port status should be clean. */
7391                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7392                                 &reg_data.word0) ||
7393                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7394                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7395                                 phba->work_status[0] =
7396                                         readl(phba->sli4_hba.u.if_type2.
7397                                               ERR1regaddr);
7398                                 phba->work_status[1] =
7399                                         readl(phba->sli4_hba.u.if_type2.
7400                                               ERR2regaddr);
7401                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7402                                         "2888 Unrecoverable port error "
7403                                         "following POST: port status reg "
7404                                         "0x%x, port_smphr reg 0x%x, "
7405                                         "error 1=0x%x, error 2=0x%x\n",
7406                                         reg_data.word0,
7407                                         portsmphr_reg.word0,
7408                                         phba->work_status[0],
7409                                         phba->work_status[1]);
7410                                 port_error = -ENODEV;
7411                         }
7412                         break;
7413                 case LPFC_SLI_INTF_IF_TYPE_1:
7414                 default:
7415                         break;
7416                 }
7417         }
7418         return port_error;
7419 }
7420
7421 /**
7422  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7423  * @phba: pointer to lpfc hba data structure.
7424  * @if_type:  The SLI4 interface type getting configured.
7425  *
7426  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7427  * memory map.
7428  **/
7429 static void
7430 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7431 {
7432         switch (if_type) {
7433         case LPFC_SLI_INTF_IF_TYPE_0:
7434                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7435                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7436                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7437                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7438                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7439                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7440                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7441                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7442                 phba->sli4_hba.SLIINTFregaddr =
7443                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7444                 break;
7445         case LPFC_SLI_INTF_IF_TYPE_2:
7446                 phba->sli4_hba.u.if_type2.EQDregaddr =
7447                         phba->sli4_hba.conf_regs_memmap_p +
7448                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7449                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7450                         phba->sli4_hba.conf_regs_memmap_p +
7451                                                 LPFC_CTL_PORT_ER1_OFFSET;
7452                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7453                         phba->sli4_hba.conf_regs_memmap_p +
7454                                                 LPFC_CTL_PORT_ER2_OFFSET;
7455                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7456                         phba->sli4_hba.conf_regs_memmap_p +
7457                                                 LPFC_CTL_PORT_CTL_OFFSET;
7458                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7459                         phba->sli4_hba.conf_regs_memmap_p +
7460                                                 LPFC_CTL_PORT_STA_OFFSET;
7461                 phba->sli4_hba.SLIINTFregaddr =
7462                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7463                 phba->sli4_hba.PSMPHRregaddr =
7464                         phba->sli4_hba.conf_regs_memmap_p +
7465                                                 LPFC_CTL_PORT_SEM_OFFSET;
7466                 phba->sli4_hba.RQDBregaddr =
7467                         phba->sli4_hba.conf_regs_memmap_p +
7468                                                 LPFC_ULP0_RQ_DOORBELL;
7469                 phba->sli4_hba.WQDBregaddr =
7470                         phba->sli4_hba.conf_regs_memmap_p +
7471                                                 LPFC_ULP0_WQ_DOORBELL;
7472                 phba->sli4_hba.CQDBregaddr =
7473                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7474                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
7475                 phba->sli4_hba.MQDBregaddr =
7476                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7477                 phba->sli4_hba.BMBXregaddr =
7478                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7479                 break;
7480         case LPFC_SLI_INTF_IF_TYPE_6:
7481                 phba->sli4_hba.u.if_type2.EQDregaddr =
7482                         phba->sli4_hba.conf_regs_memmap_p +
7483                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7484                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7485                         phba->sli4_hba.conf_regs_memmap_p +
7486                                                 LPFC_CTL_PORT_ER1_OFFSET;
7487                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7488                         phba->sli4_hba.conf_regs_memmap_p +
7489                                                 LPFC_CTL_PORT_ER2_OFFSET;
7490                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7491                         phba->sli4_hba.conf_regs_memmap_p +
7492                                                 LPFC_CTL_PORT_CTL_OFFSET;
7493                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7494                         phba->sli4_hba.conf_regs_memmap_p +
7495                                                 LPFC_CTL_PORT_STA_OFFSET;
7496                 phba->sli4_hba.PSMPHRregaddr =
7497                         phba->sli4_hba.conf_regs_memmap_p +
7498                                                 LPFC_CTL_PORT_SEM_OFFSET;
7499                 phba->sli4_hba.BMBXregaddr =
7500                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7501                 break;
7502         case LPFC_SLI_INTF_IF_TYPE_1:
7503         default:
7504                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7505                            "FATAL - unsupported SLI4 interface type - %d\n",
7506                            if_type);
7507                 break;
7508         }
7509 }
7510
7511 /**
7512  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7513  * @phba: pointer to lpfc hba data structure.
7514  *
7515  * This routine is invoked to set up SLI4 BAR1 register memory map.
7516  **/
7517 static void
7518 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7519 {
7520         switch (if_type) {
7521         case LPFC_SLI_INTF_IF_TYPE_0:
7522                 phba->sli4_hba.PSMPHRregaddr =
7523                         phba->sli4_hba.ctrl_regs_memmap_p +
7524                         LPFC_SLIPORT_IF0_SMPHR;
7525                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7526                         LPFC_HST_ISR0;
7527                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7528                         LPFC_HST_IMR0;
7529                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7530                         LPFC_HST_ISCR0;
7531                 break;
7532         case LPFC_SLI_INTF_IF_TYPE_6:
7533                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7534                         LPFC_IF6_RQ_DOORBELL;
7535                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7536                         LPFC_IF6_WQ_DOORBELL;
7537                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7538                         LPFC_IF6_CQ_DOORBELL;
7539                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7540                         LPFC_IF6_EQ_DOORBELL;
7541                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7542                         LPFC_IF6_MQ_DOORBELL;
7543                 break;
7544         case LPFC_SLI_INTF_IF_TYPE_2:
7545         case LPFC_SLI_INTF_IF_TYPE_1:
7546         default:
7547                 dev_err(&phba->pcidev->dev,
7548                            "FATAL - unsupported SLI4 interface type - %d\n",
7549                            if_type);
7550                 break;
7551         }
7552 }
7553
7554 /**
7555  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7556  * @phba: pointer to lpfc hba data structure.
7557  * @vf: virtual function number
7558  *
7559  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7560  * based on the given viftual function number, @vf.
7561  *
7562  * Return 0 if successful, otherwise -ENODEV.
7563  **/
7564 static int
7565 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7566 {
7567         if (vf > LPFC_VIR_FUNC_MAX)
7568                 return -ENODEV;
7569
7570         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7571                                 vf * LPFC_VFR_PAGE_SIZE +
7572                                         LPFC_ULP0_RQ_DOORBELL);
7573         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7574                                 vf * LPFC_VFR_PAGE_SIZE +
7575                                         LPFC_ULP0_WQ_DOORBELL);
7576         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7577                                 vf * LPFC_VFR_PAGE_SIZE +
7578                                         LPFC_EQCQ_DOORBELL);
7579         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
7580         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7581                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7582         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7583                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7584         return 0;
7585 }
7586
7587 /**
7588  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7589  * @phba: pointer to lpfc hba data structure.
7590  *
7591  * This routine is invoked to create the bootstrap mailbox
7592  * region consistent with the SLI-4 interface spec.  This
7593  * routine allocates all memory necessary to communicate
7594  * mailbox commands to the port and sets up all alignment
7595  * needs.  No locks are expected to be held when calling
7596  * this routine.
7597  *
7598  * Return codes
7599  *      0 - successful
7600  *      -ENOMEM - could not allocated memory.
7601  **/
7602 static int
7603 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7604 {
7605         uint32_t bmbx_size;
7606         struct lpfc_dmabuf *dmabuf;
7607         struct dma_address *dma_address;
7608         uint32_t pa_addr;
7609         uint64_t phys_addr;
7610
7611         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7612         if (!dmabuf)
7613                 return -ENOMEM;
7614
7615         /*
7616          * The bootstrap mailbox region is comprised of 2 parts
7617          * plus an alignment restriction of 16 bytes.
7618          */
7619         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7620         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
7621                                            &dmabuf->phys, GFP_KERNEL);
7622         if (!dmabuf->virt) {
7623                 kfree(dmabuf);
7624                 return -ENOMEM;
7625         }
7626
7627         /*
7628          * Initialize the bootstrap mailbox pointers now so that the register
7629          * operations are simple later.  The mailbox dma address is required
7630          * to be 16-byte aligned.  Also align the virtual memory as each
7631          * maibox is copied into the bmbx mailbox region before issuing the
7632          * command to the port.
7633          */
7634         phba->sli4_hba.bmbx.dmabuf = dmabuf;
7635         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7636
7637         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7638                                               LPFC_ALIGN_16_BYTE);
7639         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7640                                               LPFC_ALIGN_16_BYTE);
7641
7642         /*
7643          * Set the high and low physical addresses now.  The SLI4 alignment
7644          * requirement is 16 bytes and the mailbox is posted to the port
7645          * as two 30-bit addresses.  The other data is a bit marking whether
7646          * the 30-bit address is the high or low address.
7647          * Upcast bmbx aphys to 64bits so shift instruction compiles
7648          * clean on 32 bit machines.
7649          */
7650         dma_address = &phba->sli4_hba.bmbx.dma_address;
7651         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7652         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7653         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7654                                            LPFC_BMBX_BIT1_ADDR_HI);
7655
7656         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7657         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7658                                            LPFC_BMBX_BIT1_ADDR_LO);
7659         return 0;
7660 }
7661
7662 /**
7663  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7664  * @phba: pointer to lpfc hba data structure.
7665  *
7666  * This routine is invoked to teardown the bootstrap mailbox
7667  * region and release all host resources. This routine requires
7668  * the caller to ensure all mailbox commands recovered, no
7669  * additional mailbox comands are sent, and interrupts are disabled
7670  * before calling this routine.
7671  *
7672  **/
7673 static void
7674 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7675 {
7676         dma_free_coherent(&phba->pcidev->dev,
7677                           phba->sli4_hba.bmbx.bmbx_size,
7678                           phba->sli4_hba.bmbx.dmabuf->virt,
7679                           phba->sli4_hba.bmbx.dmabuf->phys);
7680
7681         kfree(phba->sli4_hba.bmbx.dmabuf);
7682         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7683 }
7684
7685 /**
7686  * lpfc_sli4_read_config - Get the config parameters.
7687  * @phba: pointer to lpfc hba data structure.
7688  *
7689  * This routine is invoked to read the configuration parameters from the HBA.
7690  * The configuration parameters are used to set the base and maximum values
7691  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7692  * allocation for the port.
7693  *
7694  * Return codes
7695  *      0 - successful
7696  *      -ENOMEM - No available memory
7697  *      -EIO - The mailbox failed to complete successfully.
7698  **/
7699 int
7700 lpfc_sli4_read_config(struct lpfc_hba *phba)
7701 {
7702         LPFC_MBOXQ_t *pmb;
7703         struct lpfc_mbx_read_config *rd_config;
7704         union  lpfc_sli4_cfg_shdr *shdr;
7705         uint32_t shdr_status, shdr_add_status;
7706         struct lpfc_mbx_get_func_cfg *get_func_cfg;
7707         struct lpfc_rsrc_desc_fcfcoe *desc;
7708         char *pdesc_0;
7709         uint16_t forced_link_speed;
7710         uint32_t if_type;
7711         int length, i, rc = 0, rc2;
7712
7713         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7714         if (!pmb) {
7715                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7716                                 "2011 Unable to allocate memory for issuing "
7717                                 "SLI_CONFIG_SPECIAL mailbox command\n");
7718                 return -ENOMEM;
7719         }
7720
7721         lpfc_read_config(phba, pmb);
7722
7723         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7724         if (rc != MBX_SUCCESS) {
7725                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7726                         "2012 Mailbox failed , mbxCmd x%x "
7727                         "READ_CONFIG, mbxStatus x%x\n",
7728                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
7729                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
7730                 rc = -EIO;
7731         } else {
7732                 rd_config = &pmb->u.mqe.un.rd_config;
7733                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7734                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7735                         phba->sli4_hba.lnk_info.lnk_tp =
7736                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7737                         phba->sli4_hba.lnk_info.lnk_no =
7738                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7739                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7740                                         "3081 lnk_type:%d, lnk_numb:%d\n",
7741                                         phba->sli4_hba.lnk_info.lnk_tp,
7742                                         phba->sli4_hba.lnk_info.lnk_no);
7743                 } else
7744                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7745                                         "3082 Mailbox (x%x) returned ldv:x0\n",
7746                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
7747                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
7748                         phba->bbcredit_support = 1;
7749                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
7750                 }
7751
7752                 phba->sli4_hba.extents_in_use =
7753                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7754                 phba->sli4_hba.max_cfg_param.max_xri =
7755                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7756                 phba->sli4_hba.max_cfg_param.xri_base =
7757                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7758                 phba->sli4_hba.max_cfg_param.max_vpi =
7759                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7760                 phba->sli4_hba.max_cfg_param.vpi_base =
7761                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7762                 phba->sli4_hba.max_cfg_param.max_rpi =
7763                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7764                 phba->sli4_hba.max_cfg_param.rpi_base =
7765                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7766                 phba->sli4_hba.max_cfg_param.max_vfi =
7767                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7768                 phba->sli4_hba.max_cfg_param.vfi_base =
7769                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7770                 phba->sli4_hba.max_cfg_param.max_fcfi =
7771                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7772                 phba->sli4_hba.max_cfg_param.max_eq =
7773                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7774                 phba->sli4_hba.max_cfg_param.max_rq =
7775                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7776                 phba->sli4_hba.max_cfg_param.max_wq =
7777                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7778                 phba->sli4_hba.max_cfg_param.max_cq =
7779                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7780                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7781                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7782                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7783                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7784                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7785                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7786                 phba->max_vports = phba->max_vpi;
7787                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7788                                 "2003 cfg params Extents? %d "
7789                                 "XRI(B:%d M:%d), "
7790                                 "VPI(B:%d M:%d) "
7791                                 "VFI(B:%d M:%d) "
7792                                 "RPI(B:%d M:%d) "
7793                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7794                                 phba->sli4_hba.extents_in_use,
7795                                 phba->sli4_hba.max_cfg_param.xri_base,
7796                                 phba->sli4_hba.max_cfg_param.max_xri,
7797                                 phba->sli4_hba.max_cfg_param.vpi_base,
7798                                 phba->sli4_hba.max_cfg_param.max_vpi,
7799                                 phba->sli4_hba.max_cfg_param.vfi_base,
7800                                 phba->sli4_hba.max_cfg_param.max_vfi,
7801                                 phba->sli4_hba.max_cfg_param.rpi_base,
7802                                 phba->sli4_hba.max_cfg_param.max_rpi,
7803                                 phba->sli4_hba.max_cfg_param.max_fcfi,
7804                                 phba->sli4_hba.max_cfg_param.max_eq,
7805                                 phba->sli4_hba.max_cfg_param.max_cq,
7806                                 phba->sli4_hba.max_cfg_param.max_wq,
7807                                 phba->sli4_hba.max_cfg_param.max_rq);
7808
7809                 /*
7810                  * Calculate NVME queue resources based on how
7811                  * many WQ/CQs are available.
7812                  */
7813                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7814                         length = phba->sli4_hba.max_cfg_param.max_wq;
7815                         if (phba->sli4_hba.max_cfg_param.max_cq <
7816                             phba->sli4_hba.max_cfg_param.max_wq)
7817                                 length = phba->sli4_hba.max_cfg_param.max_cq;
7818
7819                         /*
7820                          * Whats left after this can go toward NVME.
7821                          * The minus 6 accounts for ELS, NVME LS, MBOX
7822                          * fof plus a couple extra. When configured for
7823                          * NVMET, FCP io channel WQs are not created.
7824                          */
7825                         length -= 6;
7826                         if (!phba->nvmet_support)
7827                                 length -= phba->cfg_fcp_io_channel;
7828
7829                         if (phba->cfg_nvme_io_channel > length) {
7830                                 lpfc_printf_log(
7831                                         phba, KERN_ERR, LOG_SLI,
7832                                         "2005 Reducing NVME IO channel to %d: "
7833                                         "WQ %d CQ %d NVMEIO %d FCPIO %d\n",
7834                                         length,
7835                                         phba->sli4_hba.max_cfg_param.max_wq,
7836                                         phba->sli4_hba.max_cfg_param.max_cq,
7837                                         phba->cfg_nvme_io_channel,
7838                                         phba->cfg_fcp_io_channel);
7839
7840                                 phba->cfg_nvme_io_channel = length;
7841                         }
7842                 }
7843         }
7844
7845         if (rc)
7846                 goto read_cfg_out;
7847
7848         /* Update link speed if forced link speed is supported */
7849         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7850         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
7851                 forced_link_speed =
7852                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
7853                 if (forced_link_speed) {
7854                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
7855
7856                         switch (forced_link_speed) {
7857                         case LINK_SPEED_1G:
7858                                 phba->cfg_link_speed =
7859                                         LPFC_USER_LINK_SPEED_1G;
7860                                 break;
7861                         case LINK_SPEED_2G:
7862                                 phba->cfg_link_speed =
7863                                         LPFC_USER_LINK_SPEED_2G;
7864                                 break;
7865                         case LINK_SPEED_4G:
7866                                 phba->cfg_link_speed =
7867                                         LPFC_USER_LINK_SPEED_4G;
7868                                 break;
7869                         case LINK_SPEED_8G:
7870                                 phba->cfg_link_speed =
7871                                         LPFC_USER_LINK_SPEED_8G;
7872                                 break;
7873                         case LINK_SPEED_10G:
7874                                 phba->cfg_link_speed =
7875                                         LPFC_USER_LINK_SPEED_10G;
7876                                 break;
7877                         case LINK_SPEED_16G:
7878                                 phba->cfg_link_speed =
7879                                         LPFC_USER_LINK_SPEED_16G;
7880                                 break;
7881                         case LINK_SPEED_32G:
7882                                 phba->cfg_link_speed =
7883                                         LPFC_USER_LINK_SPEED_32G;
7884                                 break;
7885                         case LINK_SPEED_64G:
7886                                 phba->cfg_link_speed =
7887                                         LPFC_USER_LINK_SPEED_64G;
7888                                 break;
7889                         case 0xffff:
7890                                 phba->cfg_link_speed =
7891                                         LPFC_USER_LINK_SPEED_AUTO;
7892                                 break;
7893                         default:
7894                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7895                                                 "0047 Unrecognized link "
7896                                                 "speed : %d\n",
7897                                                 forced_link_speed);
7898                                 phba->cfg_link_speed =
7899                                         LPFC_USER_LINK_SPEED_AUTO;
7900                         }
7901                 }
7902         }
7903
7904         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
7905         length = phba->sli4_hba.max_cfg_param.max_xri -
7906                         lpfc_sli4_get_els_iocb_cnt(phba);
7907         if (phba->cfg_hba_queue_depth > length) {
7908                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7909                                 "3361 HBA queue depth changed from %d to %d\n",
7910                                 phba->cfg_hba_queue_depth, length);
7911                 phba->cfg_hba_queue_depth = length;
7912         }
7913
7914         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
7915             LPFC_SLI_INTF_IF_TYPE_2)
7916                 goto read_cfg_out;
7917
7918         /* get the pf# and vf# for SLI4 if_type 2 port */
7919         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7920                   sizeof(struct lpfc_sli4_cfg_mhdr));
7921         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7922                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7923                          length, LPFC_SLI4_MBX_EMBED);
7924
7925         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7926         shdr = (union lpfc_sli4_cfg_shdr *)
7927                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7928         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7929         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7930         if (rc2 || shdr_status || shdr_add_status) {
7931                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7932                                 "3026 Mailbox failed , mbxCmd x%x "
7933                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7934                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7935                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7936                 goto read_cfg_out;
7937         }
7938
7939         /* search for fc_fcoe resrouce descriptor */
7940         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7941
7942         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7943         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7944         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7945         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7946                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7947         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7948                 goto read_cfg_out;
7949
7950         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7951                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7952                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7953                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7954                         phba->sli4_hba.iov.pf_number =
7955                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7956                         phba->sli4_hba.iov.vf_number =
7957                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7958                         break;
7959                 }
7960         }
7961
7962         if (i < LPFC_RSRC_DESC_MAX_NUM)
7963                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7964                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7965                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7966                                 phba->sli4_hba.iov.vf_number);
7967         else
7968                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7969                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7970                                 "Resrouce Descriptor:x%x\n",
7971                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7972
7973 read_cfg_out:
7974         mempool_free(pmb, phba->mbox_mem_pool);
7975         return rc;
7976 }
7977
7978 /**
7979  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7980  * @phba: pointer to lpfc hba data structure.
7981  *
7982  * This routine is invoked to setup the port-side endian order when
7983  * the port if_type is 0.  This routine has no function for other
7984  * if_types.
7985  *
7986  * Return codes
7987  *      0 - successful
7988  *      -ENOMEM - No available memory
7989  *      -EIO - The mailbox failed to complete successfully.
7990  **/
7991 static int
7992 lpfc_setup_endian_order(struct lpfc_hba *phba)
7993 {
7994         LPFC_MBOXQ_t *mboxq;
7995         uint32_t if_type, rc = 0;
7996         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7997                                       HOST_ENDIAN_HIGH_WORD1};
7998
7999         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8000         switch (if_type) {
8001         case LPFC_SLI_INTF_IF_TYPE_0:
8002                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8003                                                        GFP_KERNEL);
8004                 if (!mboxq) {
8005                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8006                                         "0492 Unable to allocate memory for "
8007                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8008                                         "command\n");
8009                         return -ENOMEM;
8010                 }
8011
8012                 /*
8013                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8014                  * two words to contain special data values and no other data.
8015                  */
8016                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8017                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8018                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8019                 if (rc != MBX_SUCCESS) {
8020                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8021                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8022                                         "failed with status x%x\n",
8023                                         rc);
8024                         rc = -EIO;
8025                 }
8026                 mempool_free(mboxq, phba->mbox_mem_pool);
8027                 break;
8028         case LPFC_SLI_INTF_IF_TYPE_6:
8029         case LPFC_SLI_INTF_IF_TYPE_2:
8030         case LPFC_SLI_INTF_IF_TYPE_1:
8031         default:
8032                 break;
8033         }
8034         return rc;
8035 }
8036
8037 /**
8038  * lpfc_sli4_queue_verify - Verify and update EQ counts
8039  * @phba: pointer to lpfc hba data structure.
8040  *
8041  * This routine is invoked to check the user settable queue counts for EQs.
8042  * After this routine is called the counts will be set to valid values that
8043  * adhere to the constraints of the system's interrupt vectors and the port's
8044  * queue resources.
8045  *
8046  * Return codes
8047  *      0 - successful
8048  *      -ENOMEM - No available memory
8049  **/
8050 static int
8051 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8052 {
8053         int io_channel;
8054         int fof_vectors = phba->cfg_fof ? 1 : 0;
8055
8056         /*
8057          * Sanity check for configured queue parameters against the run-time
8058          * device parameters
8059          */
8060
8061         /* Sanity check on HBA EQ parameters */
8062         io_channel = phba->io_channel_irqs;
8063
8064         if (phba->sli4_hba.num_online_cpu < io_channel) {
8065                 lpfc_printf_log(phba,
8066                                 KERN_ERR, LOG_INIT,
8067                                 "3188 Reducing IO channels to match number of "
8068                                 "online CPUs: from %d to %d\n",
8069                                 io_channel, phba->sli4_hba.num_online_cpu);
8070                 io_channel = phba->sli4_hba.num_online_cpu;
8071         }
8072
8073         if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
8074                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8075                                 "2575 Reducing IO channels to match number of "
8076                                 "available EQs: from %d to %d\n",
8077                                 io_channel,
8078                                 phba->sli4_hba.max_cfg_param.max_eq);
8079                 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
8080         }
8081
8082         /* The actual number of FCP / NVME event queues adopted */
8083         if (io_channel != phba->io_channel_irqs)
8084                 phba->io_channel_irqs = io_channel;
8085         if (phba->cfg_fcp_io_channel > io_channel)
8086                 phba->cfg_fcp_io_channel = io_channel;
8087         if (phba->cfg_nvme_io_channel > io_channel)
8088                 phba->cfg_nvme_io_channel = io_channel;
8089         if (phba->nvmet_support) {
8090                 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
8091                         phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
8092         }
8093         if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8094                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8095
8096         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8097                         "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
8098                         phba->io_channel_irqs, phba->cfg_fcp_io_channel,
8099                         phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
8100
8101         /* Get EQ depth from module parameter, fake the default for now */
8102         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8103         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8104
8105         /* Get CQ depth from module parameter, fake the default for now */
8106         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8107         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8108         return 0;
8109 }
8110
8111 static int
8112 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
8113 {
8114         struct lpfc_queue *qdesc;
8115
8116         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8117                                       phba->sli4_hba.cq_esize,
8118                                       LPFC_CQE_EXP_COUNT);
8119         if (!qdesc) {
8120                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8121                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
8122                                 wqidx);
8123                 return 1;
8124         }
8125         qdesc->qe_valid = 1;
8126         phba->sli4_hba.nvme_cq[wqidx] = qdesc;
8127
8128         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8129                                       LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT);
8130         if (!qdesc) {
8131                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8132                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
8133                                 wqidx);
8134                 return 1;
8135         }
8136         phba->sli4_hba.nvme_wq[wqidx] = qdesc;
8137         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8138         return 0;
8139 }
8140
8141 static int
8142 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
8143 {
8144         struct lpfc_queue *qdesc;
8145         uint32_t wqesize;
8146
8147         /* Create Fast Path FCP CQs */
8148         if (phba->enab_exp_wqcq_pages)
8149                 /* Increase the CQ size when WQEs contain an embedded cdb */
8150                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8151                                               phba->sli4_hba.cq_esize,
8152                                               LPFC_CQE_EXP_COUNT);
8153
8154         else
8155                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8156                                               phba->sli4_hba.cq_esize,
8157                                               phba->sli4_hba.cq_ecount);
8158         if (!qdesc) {
8159                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8160                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
8161                 return 1;
8162         }
8163         qdesc->qe_valid = 1;
8164         phba->sli4_hba.fcp_cq[wqidx] = qdesc;
8165
8166         /* Create Fast Path FCP WQs */
8167         if (phba->enab_exp_wqcq_pages) {
8168                 /* Increase the WQ size when WQEs contain an embedded cdb */
8169                 wqesize = (phba->fcp_embed_io) ?
8170                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8171                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8172                                               wqesize,
8173                                               LPFC_WQE_EXP_COUNT);
8174         } else
8175                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8176                                               phba->sli4_hba.wq_esize,
8177                                               phba->sli4_hba.wq_ecount);
8178
8179         if (!qdesc) {
8180                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8181                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
8182                                 wqidx);
8183                 return 1;
8184         }
8185         phba->sli4_hba.fcp_wq[wqidx] = qdesc;
8186         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8187         return 0;
8188 }
8189
8190 /**
8191  * lpfc_sli4_queue_create - Create all the SLI4 queues
8192  * @phba: pointer to lpfc hba data structure.
8193  *
8194  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8195  * operation. For each SLI4 queue type, the parameters such as queue entry
8196  * count (queue depth) shall be taken from the module parameter. For now,
8197  * we just use some constant number as place holder.
8198  *
8199  * Return codes
8200  *      0 - successful
8201  *      -ENOMEM - No availble memory
8202  *      -EIO - The mailbox failed to complete successfully.
8203  **/
8204 int
8205 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8206 {
8207         struct lpfc_queue *qdesc;
8208         int idx, io_channel;
8209
8210         /*
8211          * Create HBA Record arrays.
8212          * Both NVME and FCP will share that same vectors / EQs
8213          */
8214         io_channel = phba->io_channel_irqs;
8215         if (!io_channel)
8216                 return -ERANGE;
8217
8218         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8219         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8220         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8221         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8222         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8223         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8224         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8225         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8226         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8227         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8228
8229         phba->sli4_hba.hba_eq =  kcalloc(io_channel,
8230                                         sizeof(struct lpfc_queue *),
8231                                         GFP_KERNEL);
8232         if (!phba->sli4_hba.hba_eq) {
8233                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8234                         "2576 Failed allocate memory for "
8235                         "fast-path EQ record array\n");
8236                 goto out_error;
8237         }
8238
8239         if (phba->cfg_fcp_io_channel) {
8240                 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
8241                                                 sizeof(struct lpfc_queue *),
8242                                                 GFP_KERNEL);
8243                 if (!phba->sli4_hba.fcp_cq) {
8244                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8245                                         "2577 Failed allocate memory for "
8246                                         "fast-path CQ record array\n");
8247                         goto out_error;
8248                 }
8249                 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
8250                                                 sizeof(struct lpfc_queue *),
8251                                                 GFP_KERNEL);
8252                 if (!phba->sli4_hba.fcp_wq) {
8253                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8254                                         "2578 Failed allocate memory for "
8255                                         "fast-path FCP WQ record array\n");
8256                         goto out_error;
8257                 }
8258                 /*
8259                  * Since the first EQ can have multiple CQs associated with it,
8260                  * this array is used to quickly see if we have a FCP fast-path
8261                  * CQ match.
8262                  */
8263                 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
8264                                                         sizeof(uint16_t),
8265                                                         GFP_KERNEL);
8266                 if (!phba->sli4_hba.fcp_cq_map) {
8267                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8268                                         "2545 Failed allocate memory for "
8269                                         "fast-path CQ map\n");
8270                         goto out_error;
8271                 }
8272         }
8273
8274         if (phba->cfg_nvme_io_channel) {
8275                 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
8276                                                 sizeof(struct lpfc_queue *),
8277                                                 GFP_KERNEL);
8278                 if (!phba->sli4_hba.nvme_cq) {
8279                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8280                                         "6077 Failed allocate memory for "
8281                                         "fast-path CQ record array\n");
8282                         goto out_error;
8283                 }
8284
8285                 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
8286                                                 sizeof(struct lpfc_queue *),
8287                                                 GFP_KERNEL);
8288                 if (!phba->sli4_hba.nvme_wq) {
8289                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8290                                         "2581 Failed allocate memory for "
8291                                         "fast-path NVME WQ record array\n");
8292                         goto out_error;
8293                 }
8294
8295                 /*
8296                  * Since the first EQ can have multiple CQs associated with it,
8297                  * this array is used to quickly see if we have a NVME fast-path
8298                  * CQ match.
8299                  */
8300                 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
8301                                                         sizeof(uint16_t),
8302                                                         GFP_KERNEL);
8303                 if (!phba->sli4_hba.nvme_cq_map) {
8304                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8305                                         "6078 Failed allocate memory for "
8306                                         "fast-path CQ map\n");
8307                         goto out_error;
8308                 }
8309
8310                 if (phba->nvmet_support) {
8311                         phba->sli4_hba.nvmet_cqset = kcalloc(
8312                                         phba->cfg_nvmet_mrq,
8313                                         sizeof(struct lpfc_queue *),
8314                                         GFP_KERNEL);
8315                         if (!phba->sli4_hba.nvmet_cqset) {
8316                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8317                                         "3121 Fail allocate memory for "
8318                                         "fast-path CQ set array\n");
8319                                 goto out_error;
8320                         }
8321                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8322                                         phba->cfg_nvmet_mrq,
8323                                         sizeof(struct lpfc_queue *),
8324                                         GFP_KERNEL);
8325                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8326                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8327                                         "3122 Fail allocate memory for "
8328                                         "fast-path RQ set hdr array\n");
8329                                 goto out_error;
8330                         }
8331                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8332                                         phba->cfg_nvmet_mrq,
8333                                         sizeof(struct lpfc_queue *),
8334                                         GFP_KERNEL);
8335                         if (!phba->sli4_hba.nvmet_mrq_data) {
8336                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8337                                         "3124 Fail allocate memory for "
8338                                         "fast-path RQ set data array\n");
8339                                 goto out_error;
8340                         }
8341                 }
8342         }
8343
8344         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8345
8346         /* Create HBA Event Queues (EQs) */
8347         for (idx = 0; idx < io_channel; idx++) {
8348                 /* Create EQs */
8349                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8350                                               phba->sli4_hba.eq_esize,
8351                                               phba->sli4_hba.eq_ecount);
8352                 if (!qdesc) {
8353                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8354                                         "0497 Failed allocate EQ (%d)\n", idx);
8355                         goto out_error;
8356                 }
8357                 qdesc->qe_valid = 1;
8358                 phba->sli4_hba.hba_eq[idx] = qdesc;
8359         }
8360
8361         /* FCP and NVME io channels are not required to be balanced */
8362
8363         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8364                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8365                         goto out_error;
8366
8367         for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8368                 if (lpfc_alloc_nvme_wq_cq(phba, idx))
8369                         goto out_error;
8370
8371         if (phba->nvmet_support) {
8372                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8373                         qdesc = lpfc_sli4_queue_alloc(phba,
8374                                                       LPFC_DEFAULT_PAGE_SIZE,
8375                                                       phba->sli4_hba.cq_esize,
8376                                                       phba->sli4_hba.cq_ecount);
8377                         if (!qdesc) {
8378                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8379                                         "3142 Failed allocate NVME "
8380                                         "CQ Set (%d)\n", idx);
8381                                 goto out_error;
8382                         }
8383                         qdesc->qe_valid = 1;
8384                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8385                 }
8386         }
8387
8388         /*
8389          * Create Slow Path Completion Queues (CQs)
8390          */
8391
8392         /* Create slow-path Mailbox Command Complete Queue */
8393         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8394                                       phba->sli4_hba.cq_esize,
8395                                       phba->sli4_hba.cq_ecount);
8396         if (!qdesc) {
8397                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8398                                 "0500 Failed allocate slow-path mailbox CQ\n");
8399                 goto out_error;
8400         }
8401         qdesc->qe_valid = 1;
8402         phba->sli4_hba.mbx_cq = qdesc;
8403
8404         /* Create slow-path ELS Complete Queue */
8405         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8406                                       phba->sli4_hba.cq_esize,
8407                                       phba->sli4_hba.cq_ecount);
8408         if (!qdesc) {
8409                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8410                                 "0501 Failed allocate slow-path ELS CQ\n");
8411                 goto out_error;
8412         }
8413         qdesc->qe_valid = 1;
8414         phba->sli4_hba.els_cq = qdesc;
8415
8416
8417         /*
8418          * Create Slow Path Work Queues (WQs)
8419          */
8420
8421         /* Create Mailbox Command Queue */
8422
8423         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8424                                       phba->sli4_hba.mq_esize,
8425                                       phba->sli4_hba.mq_ecount);
8426         if (!qdesc) {
8427                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8428                                 "0505 Failed allocate slow-path MQ\n");
8429                 goto out_error;
8430         }
8431         phba->sli4_hba.mbx_wq = qdesc;
8432
8433         /*
8434          * Create ELS Work Queues
8435          */
8436
8437         /* Create slow-path ELS Work Queue */
8438         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8439                                       phba->sli4_hba.wq_esize,
8440                                       phba->sli4_hba.wq_ecount);
8441         if (!qdesc) {
8442                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8443                                 "0504 Failed allocate slow-path ELS WQ\n");
8444                 goto out_error;
8445         }
8446         phba->sli4_hba.els_wq = qdesc;
8447         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8448
8449         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8450                 /* Create NVME LS Complete Queue */
8451                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8452                                               phba->sli4_hba.cq_esize,
8453                                               phba->sli4_hba.cq_ecount);
8454                 if (!qdesc) {
8455                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8456                                         "6079 Failed allocate NVME LS CQ\n");
8457                         goto out_error;
8458                 }
8459                 qdesc->qe_valid = 1;
8460                 phba->sli4_hba.nvmels_cq = qdesc;
8461
8462                 /* Create NVME LS Work Queue */
8463                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8464                                               phba->sli4_hba.wq_esize,
8465                                               phba->sli4_hba.wq_ecount);
8466                 if (!qdesc) {
8467                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8468                                         "6080 Failed allocate NVME LS WQ\n");
8469                         goto out_error;
8470                 }
8471                 phba->sli4_hba.nvmels_wq = qdesc;
8472                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8473         }
8474
8475         /*
8476          * Create Receive Queue (RQ)
8477          */
8478
8479         /* Create Receive Queue for header */
8480         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8481                                       phba->sli4_hba.rq_esize,
8482                                       phba->sli4_hba.rq_ecount);
8483         if (!qdesc) {
8484                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8485                                 "0506 Failed allocate receive HRQ\n");
8486                 goto out_error;
8487         }
8488         phba->sli4_hba.hdr_rq = qdesc;
8489
8490         /* Create Receive Queue for data */
8491         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8492                                       phba->sli4_hba.rq_esize,
8493                                       phba->sli4_hba.rq_ecount);
8494         if (!qdesc) {
8495                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8496                                 "0507 Failed allocate receive DRQ\n");
8497                 goto out_error;
8498         }
8499         phba->sli4_hba.dat_rq = qdesc;
8500
8501         if (phba->nvmet_support) {
8502                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8503                         /* Create NVMET Receive Queue for header */
8504                         qdesc = lpfc_sli4_queue_alloc(phba,
8505                                                       LPFC_DEFAULT_PAGE_SIZE,
8506                                                       phba->sli4_hba.rq_esize,
8507                                                       LPFC_NVMET_RQE_DEF_COUNT);
8508                         if (!qdesc) {
8509                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8510                                                 "3146 Failed allocate "
8511                                                 "receive HRQ\n");
8512                                 goto out_error;
8513                         }
8514                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8515
8516                         /* Only needed for header of RQ pair */
8517                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8518                                               GFP_KERNEL);
8519                         if (qdesc->rqbp == NULL) {
8520                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8521                                                 "6131 Failed allocate "
8522                                                 "Header RQBP\n");
8523                                 goto out_error;
8524                         }
8525
8526                         /* Put list in known state in case driver load fails. */
8527                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
8528
8529                         /* Create NVMET Receive Queue for data */
8530                         qdesc = lpfc_sli4_queue_alloc(phba,
8531                                                       LPFC_DEFAULT_PAGE_SIZE,
8532                                                       phba->sli4_hba.rq_esize,
8533                                                       LPFC_NVMET_RQE_DEF_COUNT);
8534                         if (!qdesc) {
8535                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8536                                                 "3156 Failed allocate "
8537                                                 "receive DRQ\n");
8538                                 goto out_error;
8539                         }
8540                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8541                 }
8542         }
8543
8544         /* Create the Queues needed for Flash Optimized Fabric operations */
8545         if (phba->cfg_fof)
8546                 lpfc_fof_queue_create(phba);
8547         return 0;
8548
8549 out_error:
8550         lpfc_sli4_queue_destroy(phba);
8551         return -ENOMEM;
8552 }
8553
8554 static inline void
8555 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8556 {
8557         if (*qp != NULL) {
8558                 lpfc_sli4_queue_free(*qp);
8559                 *qp = NULL;
8560         }
8561 }
8562
8563 static inline void
8564 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8565 {
8566         int idx;
8567
8568         if (*qs == NULL)
8569                 return;
8570
8571         for (idx = 0; idx < max; idx++)
8572                 __lpfc_sli4_release_queue(&(*qs)[idx]);
8573
8574         kfree(*qs);
8575         *qs = NULL;
8576 }
8577
8578 static inline void
8579 lpfc_sli4_release_queue_map(uint16_t **qmap)
8580 {
8581         if (*qmap != NULL) {
8582                 kfree(*qmap);
8583                 *qmap = NULL;
8584         }
8585 }
8586
8587 /**
8588  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8589  * @phba: pointer to lpfc hba data structure.
8590  *
8591  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8592  * operation.
8593  *
8594  * Return codes
8595  *      0 - successful
8596  *      -ENOMEM - No available memory
8597  *      -EIO - The mailbox failed to complete successfully.
8598  **/
8599 void
8600 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8601 {
8602         if (phba->cfg_fof)
8603                 lpfc_fof_queue_destroy(phba);
8604
8605         /* Release HBA eqs */
8606         lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8607
8608         /* Release FCP cqs */
8609         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8610                                  phba->cfg_fcp_io_channel);
8611
8612         /* Release FCP wqs */
8613         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8614                                  phba->cfg_fcp_io_channel);
8615
8616         /* Release FCP CQ mapping array */
8617         lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8618
8619         /* Release NVME cqs */
8620         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8621                                         phba->cfg_nvme_io_channel);
8622
8623         /* Release NVME wqs */
8624         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8625                                         phba->cfg_nvme_io_channel);
8626
8627         /* Release NVME CQ mapping array */
8628         lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8629
8630         if (phba->nvmet_support) {
8631                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8632                                          phba->cfg_nvmet_mrq);
8633
8634                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8635                                          phba->cfg_nvmet_mrq);
8636                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8637                                          phba->cfg_nvmet_mrq);
8638         }
8639
8640         /* Release mailbox command work queue */
8641         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8642
8643         /* Release ELS work queue */
8644         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8645
8646         /* Release ELS work queue */
8647         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8648
8649         /* Release unsolicited receive queue */
8650         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8651         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8652
8653         /* Release ELS complete queue */
8654         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8655
8656         /* Release NVME LS complete queue */
8657         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8658
8659         /* Release mailbox command complete queue */
8660         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8661
8662         /* Everything on this list has been freed */
8663         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8664 }
8665
8666 int
8667 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8668 {
8669         struct lpfc_rqb *rqbp;
8670         struct lpfc_dmabuf *h_buf;
8671         struct rqb_dmabuf *rqb_buffer;
8672
8673         rqbp = rq->rqbp;
8674         while (!list_empty(&rqbp->rqb_buffer_list)) {
8675                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8676                                  struct lpfc_dmabuf, list);
8677
8678                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8679                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8680                 rqbp->buffer_count--;
8681         }
8682         return 1;
8683 }
8684
8685 static int
8686 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8687         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8688         int qidx, uint32_t qtype)
8689 {
8690         struct lpfc_sli_ring *pring;
8691         int rc;
8692
8693         if (!eq || !cq || !wq) {
8694                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8695                         "6085 Fast-path %s (%d) not allocated\n",
8696                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8697                 return -ENOMEM;
8698         }
8699
8700         /* create the Cq first */
8701         rc = lpfc_cq_create(phba, cq, eq,
8702                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8703         if (rc) {
8704                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8705                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
8706                         qidx, (uint32_t)rc);
8707                 return rc;
8708         }
8709         cq->chann = qidx;
8710
8711         if (qtype != LPFC_MBOX) {
8712                 /* Setup nvme_cq_map for fast lookup */
8713                 if (cq_map)
8714                         *cq_map = cq->queue_id;
8715
8716                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8717                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8718                         qidx, cq->queue_id, qidx, eq->queue_id);
8719
8720                 /* create the wq */
8721                 rc = lpfc_wq_create(phba, wq, cq, qtype);
8722                 if (rc) {
8723                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8724                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8725                                 qidx, (uint32_t)rc);
8726                         /* no need to tear down cq - caller will do so */
8727                         return rc;
8728                 }
8729                 wq->chann = qidx;
8730
8731                 /* Bind this CQ/WQ to the NVME ring */
8732                 pring = wq->pring;
8733                 pring->sli.sli4.wqp = (void *)wq;
8734                 cq->pring = pring;
8735
8736                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8737                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8738                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8739         } else {
8740                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8741                 if (rc) {
8742                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8743                                 "0539 Failed setup of slow-path MQ: "
8744                                 "rc = 0x%x\n", rc);
8745                         /* no need to tear down cq - caller will do so */
8746                         return rc;
8747                 }
8748
8749                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8750                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8751                         phba->sli4_hba.mbx_wq->queue_id,
8752                         phba->sli4_hba.mbx_cq->queue_id);
8753         }
8754
8755         return 0;
8756 }
8757
8758 /**
8759  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8760  * @phba: pointer to lpfc hba data structure.
8761  *
8762  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8763  * operation.
8764  *
8765  * Return codes
8766  *      0 - successful
8767  *      -ENOMEM - No available memory
8768  *      -EIO - The mailbox failed to complete successfully.
8769  **/
8770 int
8771 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8772 {
8773         uint32_t shdr_status, shdr_add_status;
8774         union lpfc_sli4_cfg_shdr *shdr;
8775         LPFC_MBOXQ_t *mboxq;
8776         int qidx;
8777         uint32_t length, io_channel;
8778         int rc = -ENOMEM;
8779
8780         /* Check for dual-ULP support */
8781         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8782         if (!mboxq) {
8783                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8784                                 "3249 Unable to allocate memory for "
8785                                 "QUERY_FW_CFG mailbox command\n");
8786                 return -ENOMEM;
8787         }
8788         length = (sizeof(struct lpfc_mbx_query_fw_config) -
8789                   sizeof(struct lpfc_sli4_cfg_mhdr));
8790         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8791                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8792                          length, LPFC_SLI4_MBX_EMBED);
8793
8794         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8795
8796         shdr = (union lpfc_sli4_cfg_shdr *)
8797                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8798         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8799         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8800         if (shdr_status || shdr_add_status || rc) {
8801                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8802                                 "3250 QUERY_FW_CFG mailbox failed with status "
8803                                 "x%x add_status x%x, mbx status x%x\n",
8804                                 shdr_status, shdr_add_status, rc);
8805                 if (rc != MBX_TIMEOUT)
8806                         mempool_free(mboxq, phba->mbox_mem_pool);
8807                 rc = -ENXIO;
8808                 goto out_error;
8809         }
8810
8811         phba->sli4_hba.fw_func_mode =
8812                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
8813         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
8814         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
8815         phba->sli4_hba.physical_port =
8816                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
8817         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8818                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
8819                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
8820                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
8821
8822         if (rc != MBX_TIMEOUT)
8823                 mempool_free(mboxq, phba->mbox_mem_pool);
8824
8825         /*
8826          * Set up HBA Event Queues (EQs)
8827          */
8828         io_channel = phba->io_channel_irqs;
8829
8830         /* Set up HBA event queue */
8831         if (io_channel && !phba->sli4_hba.hba_eq) {
8832                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8833                                 "3147 Fast-path EQs not allocated\n");
8834                 rc = -ENOMEM;
8835                 goto out_error;
8836         }
8837         for (qidx = 0; qidx < io_channel; qidx++) {
8838                 if (!phba->sli4_hba.hba_eq[qidx]) {
8839                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8840                                         "0522 Fast-path EQ (%d) not "
8841                                         "allocated\n", qidx);
8842                         rc = -ENOMEM;
8843                         goto out_destroy;
8844                 }
8845                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
8846                                                 phba->cfg_fcp_imax);
8847                 if (rc) {
8848                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8849                                         "0523 Failed setup of fast-path EQ "
8850                                         "(%d), rc = 0x%x\n", qidx,
8851                                         (uint32_t)rc);
8852                         goto out_destroy;
8853                 }
8854                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8855                                 "2584 HBA EQ setup: queue[%d]-id=%d\n",
8856                                 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
8857         }
8858
8859         if (phba->cfg_nvme_io_channel) {
8860                 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
8861                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8862                                 "6084 Fast-path NVME %s array not allocated\n",
8863                                 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
8864                         rc = -ENOMEM;
8865                         goto out_destroy;
8866                 }
8867
8868                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
8869                         rc = lpfc_create_wq_cq(phba,
8870                                         phba->sli4_hba.hba_eq[
8871                                                 qidx % io_channel],
8872                                         phba->sli4_hba.nvme_cq[qidx],
8873                                         phba->sli4_hba.nvme_wq[qidx],
8874                                         &phba->sli4_hba.nvme_cq_map[qidx],
8875                                         qidx, LPFC_NVME);
8876                         if (rc) {
8877                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8878                                         "6123 Failed to setup fastpath "
8879                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
8880                                         qidx, (uint32_t)rc);
8881                                 goto out_destroy;
8882                         }
8883                 }
8884         }
8885
8886         if (phba->cfg_fcp_io_channel) {
8887                 /* Set up fast-path FCP Response Complete Queue */
8888                 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
8889                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8890                                 "3148 Fast-path FCP %s array not allocated\n",
8891                                 phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
8892                         rc = -ENOMEM;
8893                         goto out_destroy;
8894                 }
8895
8896                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
8897                         rc = lpfc_create_wq_cq(phba,
8898                                         phba->sli4_hba.hba_eq[
8899                                                 qidx % io_channel],
8900                                         phba->sli4_hba.fcp_cq[qidx],
8901                                         phba->sli4_hba.fcp_wq[qidx],
8902                                         &phba->sli4_hba.fcp_cq_map[qidx],
8903                                         qidx, LPFC_FCP);
8904                         if (rc) {
8905                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8906                                         "0535 Failed to setup fastpath "
8907                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
8908                                         qidx, (uint32_t)rc);
8909                                 goto out_destroy;
8910                         }
8911                 }
8912         }
8913
8914         /*
8915          * Set up Slow Path Complete Queues (CQs)
8916          */
8917
8918         /* Set up slow-path MBOX CQ/MQ */
8919
8920         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
8921                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8922                                 "0528 %s not allocated\n",
8923                                 phba->sli4_hba.mbx_cq ?
8924                                 "Mailbox WQ" : "Mailbox CQ");
8925                 rc = -ENOMEM;
8926                 goto out_destroy;
8927         }
8928
8929         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8930                                phba->sli4_hba.mbx_cq,
8931                                phba->sli4_hba.mbx_wq,
8932                                NULL, 0, LPFC_MBOX);
8933         if (rc) {
8934                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8935                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
8936                         (uint32_t)rc);
8937                 goto out_destroy;
8938         }
8939         if (phba->nvmet_support) {
8940                 if (!phba->sli4_hba.nvmet_cqset) {
8941                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8942                                         "3165 Fast-path NVME CQ Set "
8943                                         "array not allocated\n");
8944                         rc = -ENOMEM;
8945                         goto out_destroy;
8946                 }
8947                 if (phba->cfg_nvmet_mrq > 1) {
8948                         rc = lpfc_cq_create_set(phba,
8949                                         phba->sli4_hba.nvmet_cqset,
8950                                         phba->sli4_hba.hba_eq,
8951                                         LPFC_WCQ, LPFC_NVMET);
8952                         if (rc) {
8953                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8954                                                 "3164 Failed setup of NVME CQ "
8955                                                 "Set, rc = 0x%x\n",
8956                                                 (uint32_t)rc);
8957                                 goto out_destroy;
8958                         }
8959                 } else {
8960                         /* Set up NVMET Receive Complete Queue */
8961                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
8962                                             phba->sli4_hba.hba_eq[0],
8963                                             LPFC_WCQ, LPFC_NVMET);
8964                         if (rc) {
8965                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8966                                                 "6089 Failed setup NVMET CQ: "
8967                                                 "rc = 0x%x\n", (uint32_t)rc);
8968                                 goto out_destroy;
8969                         }
8970                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
8971
8972                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8973                                         "6090 NVMET CQ setup: cq-id=%d, "
8974                                         "parent eq-id=%d\n",
8975                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
8976                                         phba->sli4_hba.hba_eq[0]->queue_id);
8977                 }
8978         }
8979
8980         /* Set up slow-path ELS WQ/CQ */
8981         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
8982                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8983                                 "0530 ELS %s not allocated\n",
8984                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
8985                 rc = -ENOMEM;
8986                 goto out_destroy;
8987         }
8988         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8989                                         phba->sli4_hba.els_cq,
8990                                         phba->sli4_hba.els_wq,
8991                                         NULL, 0, LPFC_ELS);
8992         if (rc) {
8993                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8994                         "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
8995                         (uint32_t)rc);
8996                 goto out_destroy;
8997         }
8998         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8999                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9000                         phba->sli4_hba.els_wq->queue_id,
9001                         phba->sli4_hba.els_cq->queue_id);
9002
9003         if (phba->cfg_nvme_io_channel) {
9004                 /* Set up NVME LS Complete Queue */
9005                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9006                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9007                                         "6091 LS %s not allocated\n",
9008                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9009                         rc = -ENOMEM;
9010                         goto out_destroy;
9011                 }
9012                 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
9013                                         phba->sli4_hba.nvmels_cq,
9014                                         phba->sli4_hba.nvmels_wq,
9015                                         NULL, 0, LPFC_NVME_LS);
9016                 if (rc) {
9017                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9018                                 "0529 Failed setup of NVVME LS WQ/CQ: "
9019                                 "rc = 0x%x\n", (uint32_t)rc);
9020                         goto out_destroy;
9021                 }
9022
9023                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9024                                 "6096 ELS WQ setup: wq-id=%d, "
9025                                 "parent cq-id=%d\n",
9026                                 phba->sli4_hba.nvmels_wq->queue_id,
9027                                 phba->sli4_hba.nvmels_cq->queue_id);
9028         }
9029
9030         /*
9031          * Create NVMET Receive Queue (RQ)
9032          */
9033         if (phba->nvmet_support) {
9034                 if ((!phba->sli4_hba.nvmet_cqset) ||
9035                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9036                     (!phba->sli4_hba.nvmet_mrq_data)) {
9037                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9038                                         "6130 MRQ CQ Queues not "
9039                                         "allocated\n");
9040                         rc = -ENOMEM;
9041                         goto out_destroy;
9042                 }
9043                 if (phba->cfg_nvmet_mrq > 1) {
9044                         rc = lpfc_mrq_create(phba,
9045                                              phba->sli4_hba.nvmet_mrq_hdr,
9046                                              phba->sli4_hba.nvmet_mrq_data,
9047                                              phba->sli4_hba.nvmet_cqset,
9048                                              LPFC_NVMET);
9049                         if (rc) {
9050                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9051                                                 "6098 Failed setup of NVMET "
9052                                                 "MRQ: rc = 0x%x\n",
9053                                                 (uint32_t)rc);
9054                                 goto out_destroy;
9055                         }
9056
9057                 } else {
9058                         rc = lpfc_rq_create(phba,
9059                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9060                                             phba->sli4_hba.nvmet_mrq_data[0],
9061                                             phba->sli4_hba.nvmet_cqset[0],
9062                                             LPFC_NVMET);
9063                         if (rc) {
9064                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9065                                                 "6057 Failed setup of NVMET "
9066                                                 "Receive Queue: rc = 0x%x\n",
9067                                                 (uint32_t)rc);
9068                                 goto out_destroy;
9069                         }
9070
9071                         lpfc_printf_log(
9072                                 phba, KERN_INFO, LOG_INIT,
9073                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9074                                 "dat-rq-id=%d parent cq-id=%d\n",
9075                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9076                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9077                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9078
9079                 }
9080         }
9081
9082         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9083                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9084                                 "0540 Receive Queue not allocated\n");
9085                 rc = -ENOMEM;
9086                 goto out_destroy;
9087         }
9088
9089         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9090                             phba->sli4_hba.els_cq, LPFC_USOL);
9091         if (rc) {
9092                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9093                                 "0541 Failed setup of Receive Queue: "
9094                                 "rc = 0x%x\n", (uint32_t)rc);
9095                 goto out_destroy;
9096         }
9097
9098         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9099                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9100                         "parent cq-id=%d\n",
9101                         phba->sli4_hba.hdr_rq->queue_id,
9102                         phba->sli4_hba.dat_rq->queue_id,
9103                         phba->sli4_hba.els_cq->queue_id);
9104
9105         if (phba->cfg_fof) {
9106                 rc = lpfc_fof_queue_setup(phba);
9107                 if (rc) {
9108                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9109                                         "0549 Failed setup of FOF Queues: "
9110                                         "rc = 0x%x\n", rc);
9111                         goto out_destroy;
9112                 }
9113         }
9114
9115         for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9116                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9117                                          phba->cfg_fcp_imax);
9118
9119         return 0;
9120
9121 out_destroy:
9122         lpfc_sli4_queue_unset(phba);
9123 out_error:
9124         return rc;
9125 }
9126
9127 /**
9128  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9129  * @phba: pointer to lpfc hba data structure.
9130  *
9131  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9132  * operation.
9133  *
9134  * Return codes
9135  *      0 - successful
9136  *      -ENOMEM - No available memory
9137  *      -EIO - The mailbox failed to complete successfully.
9138  **/
9139 void
9140 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9141 {
9142         int qidx;
9143
9144         /* Unset the queues created for Flash Optimized Fabric operations */
9145         if (phba->cfg_fof)
9146                 lpfc_fof_queue_destroy(phba);
9147
9148         /* Unset mailbox command work queue */
9149         if (phba->sli4_hba.mbx_wq)
9150                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9151
9152         /* Unset NVME LS work queue */
9153         if (phba->sli4_hba.nvmels_wq)
9154                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9155
9156         /* Unset ELS work queue */
9157         if (phba->sli4_hba.els_wq)
9158                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9159
9160         /* Unset unsolicited receive queue */
9161         if (phba->sli4_hba.hdr_rq)
9162                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9163                                 phba->sli4_hba.dat_rq);
9164
9165         /* Unset FCP work queue */
9166         if (phba->sli4_hba.fcp_wq)
9167                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9168                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
9169
9170         /* Unset NVME work queue */
9171         if (phba->sli4_hba.nvme_wq) {
9172                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
9173                         lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
9174         }
9175
9176         /* Unset mailbox command complete queue */
9177         if (phba->sli4_hba.mbx_cq)
9178                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9179
9180         /* Unset ELS complete queue */
9181         if (phba->sli4_hba.els_cq)
9182                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9183
9184         /* Unset NVME LS complete queue */
9185         if (phba->sli4_hba.nvmels_cq)
9186                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9187
9188         /* Unset NVME response complete queue */
9189         if (phba->sli4_hba.nvme_cq)
9190                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
9191                         lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
9192
9193         if (phba->nvmet_support) {
9194                 /* Unset NVMET MRQ queue */
9195                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9196                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9197                                 lpfc_rq_destroy(
9198                                         phba,
9199                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9200                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9201                 }
9202
9203                 /* Unset NVMET CQ Set complete queue */
9204                 if (phba->sli4_hba.nvmet_cqset) {
9205                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9206                                 lpfc_cq_destroy(
9207                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9208                 }
9209         }
9210
9211         /* Unset FCP response complete queue */
9212         if (phba->sli4_hba.fcp_cq)
9213                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9214                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
9215
9216         /* Unset fast-path event queue */
9217         if (phba->sli4_hba.hba_eq)
9218                 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
9219                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
9220 }
9221
9222 /**
9223  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9224  * @phba: pointer to lpfc hba data structure.
9225  *
9226  * This routine is invoked to allocate and set up a pool of completion queue
9227  * events. The body of the completion queue event is a completion queue entry
9228  * CQE. For now, this pool is used for the interrupt service routine to queue
9229  * the following HBA completion queue events for the worker thread to process:
9230  *   - Mailbox asynchronous events
9231  *   - Receive queue completion unsolicited events
9232  * Later, this can be used for all the slow-path events.
9233  *
9234  * Return codes
9235  *      0 - successful
9236  *      -ENOMEM - No available memory
9237  **/
9238 static int
9239 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9240 {
9241         struct lpfc_cq_event *cq_event;
9242         int i;
9243
9244         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9245                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9246                 if (!cq_event)
9247                         goto out_pool_create_fail;
9248                 list_add_tail(&cq_event->list,
9249                               &phba->sli4_hba.sp_cqe_event_pool);
9250         }
9251         return 0;
9252
9253 out_pool_create_fail:
9254         lpfc_sli4_cq_event_pool_destroy(phba);
9255         return -ENOMEM;
9256 }
9257
9258 /**
9259  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9260  * @phba: pointer to lpfc hba data structure.
9261  *
9262  * This routine is invoked to free the pool of completion queue events at
9263  * driver unload time. Note that, it is the responsibility of the driver
9264  * cleanup routine to free all the outstanding completion-queue events
9265  * allocated from this pool back into the pool before invoking this routine
9266  * to destroy the pool.
9267  **/
9268 static void
9269 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9270 {
9271         struct lpfc_cq_event *cq_event, *next_cq_event;
9272
9273         list_for_each_entry_safe(cq_event, next_cq_event,
9274                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9275                 list_del(&cq_event->list);
9276                 kfree(cq_event);
9277         }
9278 }
9279
9280 /**
9281  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9282  * @phba: pointer to lpfc hba data structure.
9283  *
9284  * This routine is the lock free version of the API invoked to allocate a
9285  * completion-queue event from the free pool.
9286  *
9287  * Return: Pointer to the newly allocated completion-queue event if successful
9288  *         NULL otherwise.
9289  **/
9290 struct lpfc_cq_event *
9291 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9292 {
9293         struct lpfc_cq_event *cq_event = NULL;
9294
9295         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9296                          struct lpfc_cq_event, list);
9297         return cq_event;
9298 }
9299
9300 /**
9301  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9302  * @phba: pointer to lpfc hba data structure.
9303  *
9304  * This routine is the lock version of the API invoked to allocate a
9305  * completion-queue event from the free pool.
9306  *
9307  * Return: Pointer to the newly allocated completion-queue event if successful
9308  *         NULL otherwise.
9309  **/
9310 struct lpfc_cq_event *
9311 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9312 {
9313         struct lpfc_cq_event *cq_event;
9314         unsigned long iflags;
9315
9316         spin_lock_irqsave(&phba->hbalock, iflags);
9317         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9318         spin_unlock_irqrestore(&phba->hbalock, iflags);
9319         return cq_event;
9320 }
9321
9322 /**
9323  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9324  * @phba: pointer to lpfc hba data structure.
9325  * @cq_event: pointer to the completion queue event to be freed.
9326  *
9327  * This routine is the lock free version of the API invoked to release a
9328  * completion-queue event back into the free pool.
9329  **/
9330 void
9331 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9332                              struct lpfc_cq_event *cq_event)
9333 {
9334         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9335 }
9336
9337 /**
9338  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9339  * @phba: pointer to lpfc hba data structure.
9340  * @cq_event: pointer to the completion queue event to be freed.
9341  *
9342  * This routine is the lock version of the API invoked to release a
9343  * completion-queue event back into the free pool.
9344  **/
9345 void
9346 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9347                            struct lpfc_cq_event *cq_event)
9348 {
9349         unsigned long iflags;
9350         spin_lock_irqsave(&phba->hbalock, iflags);
9351         __lpfc_sli4_cq_event_release(phba, cq_event);
9352         spin_unlock_irqrestore(&phba->hbalock, iflags);
9353 }
9354
9355 /**
9356  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9357  * @phba: pointer to lpfc hba data structure.
9358  *
9359  * This routine is to free all the pending completion-queue events to the
9360  * back into the free pool for device reset.
9361  **/
9362 static void
9363 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9364 {
9365         LIST_HEAD(cqelist);
9366         struct lpfc_cq_event *cqe;
9367         unsigned long iflags;
9368
9369         /* Retrieve all the pending WCQEs from pending WCQE lists */
9370         spin_lock_irqsave(&phba->hbalock, iflags);
9371         /* Pending FCP XRI abort events */
9372         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9373                          &cqelist);
9374         /* Pending ELS XRI abort events */
9375         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9376                          &cqelist);
9377         /* Pending asynnc events */
9378         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9379                          &cqelist);
9380         spin_unlock_irqrestore(&phba->hbalock, iflags);
9381
9382         while (!list_empty(&cqelist)) {
9383                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9384                 lpfc_sli4_cq_event_release(phba, cqe);
9385         }
9386 }
9387
9388 /**
9389  * lpfc_pci_function_reset - Reset pci function.
9390  * @phba: pointer to lpfc hba data structure.
9391  *
9392  * This routine is invoked to request a PCI function reset. It will destroys
9393  * all resources assigned to the PCI function which originates this request.
9394  *
9395  * Return codes
9396  *      0 - successful
9397  *      -ENOMEM - No available memory
9398  *      -EIO - The mailbox failed to complete successfully.
9399  **/
9400 int
9401 lpfc_pci_function_reset(struct lpfc_hba *phba)
9402 {
9403         LPFC_MBOXQ_t *mboxq;
9404         uint32_t rc = 0, if_type;
9405         uint32_t shdr_status, shdr_add_status;
9406         uint32_t rdy_chk;
9407         uint32_t port_reset = 0;
9408         union lpfc_sli4_cfg_shdr *shdr;
9409         struct lpfc_register reg_data;
9410         uint16_t devid;
9411
9412         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9413         switch (if_type) {
9414         case LPFC_SLI_INTF_IF_TYPE_0:
9415                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9416                                                        GFP_KERNEL);
9417                 if (!mboxq) {
9418                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9419                                         "0494 Unable to allocate memory for "
9420                                         "issuing SLI_FUNCTION_RESET mailbox "
9421                                         "command\n");
9422                         return -ENOMEM;
9423                 }
9424
9425                 /* Setup PCI function reset mailbox-ioctl command */
9426                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9427                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9428                                  LPFC_SLI4_MBX_EMBED);
9429                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9430                 shdr = (union lpfc_sli4_cfg_shdr *)
9431                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9432                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9433                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9434                                          &shdr->response);
9435                 if (rc != MBX_TIMEOUT)
9436                         mempool_free(mboxq, phba->mbox_mem_pool);
9437                 if (shdr_status || shdr_add_status || rc) {
9438                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9439                                         "0495 SLI_FUNCTION_RESET mailbox "
9440                                         "failed with status x%x add_status x%x,"
9441                                         " mbx status x%x\n",
9442                                         shdr_status, shdr_add_status, rc);
9443                         rc = -ENXIO;
9444                 }
9445                 break;
9446         case LPFC_SLI_INTF_IF_TYPE_2:
9447         case LPFC_SLI_INTF_IF_TYPE_6:
9448 wait:
9449                 /*
9450                  * Poll the Port Status Register and wait for RDY for
9451                  * up to 30 seconds. If the port doesn't respond, treat
9452                  * it as an error.
9453                  */
9454                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9455                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9456                                 STATUSregaddr, &reg_data.word0)) {
9457                                 rc = -ENODEV;
9458                                 goto out;
9459                         }
9460                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9461                                 break;
9462                         msleep(20);
9463                 }
9464
9465                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9466                         phba->work_status[0] = readl(
9467                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9468                         phba->work_status[1] = readl(
9469                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9470                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9471                                         "2890 Port not ready, port status reg "
9472                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9473                                         reg_data.word0,
9474                                         phba->work_status[0],
9475                                         phba->work_status[1]);
9476                         rc = -ENODEV;
9477                         goto out;
9478                 }
9479
9480                 if (!port_reset) {
9481                         /*
9482                          * Reset the port now
9483                          */
9484                         reg_data.word0 = 0;
9485                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
9486                                LPFC_SLIPORT_LITTLE_ENDIAN);
9487                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9488                                LPFC_SLIPORT_INIT_PORT);
9489                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9490                                CTRLregaddr);
9491                         /* flush */
9492                         pci_read_config_word(phba->pcidev,
9493                                              PCI_DEVICE_ID, &devid);
9494
9495                         port_reset = 1;
9496                         msleep(20);
9497                         goto wait;
9498                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
9499                         rc = -ENODEV;
9500                         goto out;
9501                 }
9502                 break;
9503
9504         case LPFC_SLI_INTF_IF_TYPE_1:
9505         default:
9506                 break;
9507         }
9508
9509 out:
9510         /* Catch the not-ready port failure after a port reset. */
9511         if (rc) {
9512                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9513                                 "3317 HBA not functional: IP Reset Failed "
9514                                 "try: echo fw_reset > board_mode\n");
9515                 rc = -ENODEV;
9516         }
9517
9518         return rc;
9519 }
9520
9521 /**
9522  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9523  * @phba: pointer to lpfc hba data structure.
9524  *
9525  * This routine is invoked to set up the PCI device memory space for device
9526  * with SLI-4 interface spec.
9527  *
9528  * Return codes
9529  *      0 - successful
9530  *      other values - error
9531  **/
9532 static int
9533 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9534 {
9535         struct pci_dev *pdev;
9536         unsigned long bar0map_len, bar1map_len, bar2map_len;
9537         int error = -ENODEV;
9538         uint32_t if_type;
9539
9540         /* Obtain PCI device reference */
9541         if (!phba->pcidev)
9542                 return error;
9543         else
9544                 pdev = phba->pcidev;
9545
9546         /* Set the device DMA mask size */
9547         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
9548          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
9549                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
9550                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
9551                         return error;
9552                 }
9553         }
9554
9555         /*
9556          * The BARs and register set definitions and offset locations are
9557          * dependent on the if_type.
9558          */
9559         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9560                                   &phba->sli4_hba.sli_intf.word0)) {
9561                 return error;
9562         }
9563
9564         /* There is no SLI3 failback for SLI4 devices. */
9565         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9566             LPFC_SLI_INTF_VALID) {
9567                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9568                                 "2894 SLI_INTF reg contents invalid "
9569                                 "sli_intf reg 0x%x\n",
9570                                 phba->sli4_hba.sli_intf.word0);
9571                 return error;
9572         }
9573
9574         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9575         /*
9576          * Get the bus address of SLI4 device Bar regions and the
9577          * number of bytes required by each mapping. The mapping of the
9578          * particular PCI BARs regions is dependent on the type of
9579          * SLI4 device.
9580          */
9581         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9582                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9583                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9584
9585                 /*
9586                  * Map SLI4 PCI Config Space Register base to a kernel virtual
9587                  * addr
9588                  */
9589                 phba->sli4_hba.conf_regs_memmap_p =
9590                         ioremap(phba->pci_bar0_map, bar0map_len);
9591                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9592                         dev_printk(KERN_ERR, &pdev->dev,
9593                                    "ioremap failed for SLI4 PCI config "
9594                                    "registers.\n");
9595                         goto out;
9596                 }
9597                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9598                 /* Set up BAR0 PCI config space register memory map */
9599                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9600         } else {
9601                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
9602                 bar0map_len = pci_resource_len(pdev, 1);
9603                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9604                         dev_printk(KERN_ERR, &pdev->dev,
9605                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9606                         goto out;
9607                 }
9608                 phba->sli4_hba.conf_regs_memmap_p =
9609                                 ioremap(phba->pci_bar0_map, bar0map_len);
9610                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9611                         dev_printk(KERN_ERR, &pdev->dev,
9612                                 "ioremap failed for SLI4 PCI config "
9613                                 "registers.\n");
9614                                 goto out;
9615                 }
9616                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9617         }
9618
9619         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
9620                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
9621                         /*
9622                          * Map SLI4 if type 0 HBA Control Register base to a
9623                          * kernel virtual address and setup the registers.
9624                          */
9625                         phba->pci_bar1_map = pci_resource_start(pdev,
9626                                                                 PCI_64BIT_BAR2);
9627                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9628                         phba->sli4_hba.ctrl_regs_memmap_p =
9629                                         ioremap(phba->pci_bar1_map,
9630                                                 bar1map_len);
9631                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9632                                 dev_err(&pdev->dev,
9633                                            "ioremap failed for SLI4 HBA "
9634                                             "control registers.\n");
9635                                 error = -ENOMEM;
9636                                 goto out_iounmap_conf;
9637                         }
9638                         phba->pci_bar2_memmap_p =
9639                                          phba->sli4_hba.ctrl_regs_memmap_p;
9640                         lpfc_sli4_bar1_register_memmap(phba, if_type);
9641                 } else {
9642                         error = -ENOMEM;
9643                         goto out_iounmap_conf;
9644                 }
9645         }
9646
9647         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
9648             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9649                 /*
9650                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
9651                  * virtual address and setup the registers.
9652                  */
9653                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9654                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9655                 phba->sli4_hba.drbl_regs_memmap_p =
9656                                 ioremap(phba->pci_bar1_map, bar1map_len);
9657                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
9658                         dev_err(&pdev->dev,
9659                            "ioremap failed for SLI4 HBA doorbell registers.\n");
9660                         goto out_iounmap_conf;
9661                 }
9662                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9663                 lpfc_sli4_bar1_register_memmap(phba, if_type);
9664         }
9665
9666         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
9667                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
9668                         /*
9669                          * Map SLI4 if type 0 HBA Doorbell Register base to
9670                          * a kernel virtual address and setup the registers.
9671                          */
9672                         phba->pci_bar2_map = pci_resource_start(pdev,
9673                                                                 PCI_64BIT_BAR4);
9674                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9675                         phba->sli4_hba.drbl_regs_memmap_p =
9676                                         ioremap(phba->pci_bar2_map,
9677                                                 bar2map_len);
9678                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
9679                                 dev_err(&pdev->dev,
9680                                            "ioremap failed for SLI4 HBA"
9681                                            " doorbell registers.\n");
9682                                 error = -ENOMEM;
9683                                 goto out_iounmap_ctrl;
9684                         }
9685                         phba->pci_bar4_memmap_p =
9686                                         phba->sli4_hba.drbl_regs_memmap_p;
9687                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9688                         if (error)
9689                                 goto out_iounmap_all;
9690                 } else {
9691                         error = -ENOMEM;
9692                         goto out_iounmap_all;
9693                 }
9694         }
9695
9696         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
9697             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
9698                 /*
9699                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
9700                  * virtual address and setup the registers.
9701                  */
9702                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9703                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9704                 phba->sli4_hba.dpp_regs_memmap_p =
9705                                 ioremap(phba->pci_bar2_map, bar2map_len);
9706                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
9707                         dev_err(&pdev->dev,
9708                            "ioremap failed for SLI4 HBA dpp registers.\n");
9709                         goto out_iounmap_ctrl;
9710                 }
9711                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
9712         }
9713
9714         /* Set up the EQ/CQ register handeling functions now */
9715         switch (if_type) {
9716         case LPFC_SLI_INTF_IF_TYPE_0:
9717         case LPFC_SLI_INTF_IF_TYPE_2:
9718                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
9719                 phba->sli4_hba.sli4_eq_release = lpfc_sli4_eq_release;
9720                 phba->sli4_hba.sli4_cq_release = lpfc_sli4_cq_release;
9721                 break;
9722         case LPFC_SLI_INTF_IF_TYPE_6:
9723                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
9724                 phba->sli4_hba.sli4_eq_release = lpfc_sli4_if6_eq_release;
9725                 phba->sli4_hba.sli4_cq_release = lpfc_sli4_if6_cq_release;
9726                 break;
9727         default:
9728                 break;
9729         }
9730
9731         return 0;
9732
9733 out_iounmap_all:
9734         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9735 out_iounmap_ctrl:
9736         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9737 out_iounmap_conf:
9738         iounmap(phba->sli4_hba.conf_regs_memmap_p);
9739 out:
9740         return error;
9741 }
9742
9743 /**
9744  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9745  * @phba: pointer to lpfc hba data structure.
9746  *
9747  * This routine is invoked to unset the PCI device memory space for device
9748  * with SLI-4 interface spec.
9749  **/
9750 static void
9751 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9752 {
9753         uint32_t if_type;
9754         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9755
9756         switch (if_type) {
9757         case LPFC_SLI_INTF_IF_TYPE_0:
9758                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9759                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9760                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9761                 break;
9762         case LPFC_SLI_INTF_IF_TYPE_2:
9763                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9764                 break;
9765         case LPFC_SLI_INTF_IF_TYPE_6:
9766                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9767                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9768                 break;
9769         case LPFC_SLI_INTF_IF_TYPE_1:
9770         default:
9771                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9772                            "FATAL - unsupported SLI4 interface type - %d\n",
9773                            if_type);
9774                 break;
9775         }
9776 }
9777
9778 /**
9779  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9780  * @phba: pointer to lpfc hba data structure.
9781  *
9782  * This routine is invoked to enable the MSI-X interrupt vectors to device
9783  * with SLI-3 interface specs.
9784  *
9785  * Return codes
9786  *   0 - successful
9787  *   other values - error
9788  **/
9789 static int
9790 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9791 {
9792         int rc;
9793         LPFC_MBOXQ_t *pmb;
9794
9795         /* Set up MSI-X multi-message vectors */
9796         rc = pci_alloc_irq_vectors(phba->pcidev,
9797                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9798         if (rc < 0) {
9799                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9800                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
9801                 goto vec_fail_out;
9802         }
9803
9804         /*
9805          * Assign MSI-X vectors to interrupt handlers
9806          */
9807
9808         /* vector-0 is associated to slow-path handler */
9809         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
9810                          &lpfc_sli_sp_intr_handler, 0,
9811                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
9812         if (rc) {
9813                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9814                                 "0421 MSI-X slow-path request_irq failed "
9815                                 "(%d)\n", rc);
9816                 goto msi_fail_out;
9817         }
9818
9819         /* vector-1 is associated to fast-path handler */
9820         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
9821                          &lpfc_sli_fp_intr_handler, 0,
9822                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
9823
9824         if (rc) {
9825                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9826                                 "0429 MSI-X fast-path request_irq failed "
9827                                 "(%d)\n", rc);
9828                 goto irq_fail_out;
9829         }
9830
9831         /*
9832          * Configure HBA MSI-X attention conditions to messages
9833          */
9834         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9835
9836         if (!pmb) {
9837                 rc = -ENOMEM;
9838                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9839                                 "0474 Unable to allocate memory for issuing "
9840                                 "MBOX_CONFIG_MSI command\n");
9841                 goto mem_fail_out;
9842         }
9843         rc = lpfc_config_msi(phba, pmb);
9844         if (rc)
9845                 goto mbx_fail_out;
9846         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9847         if (rc != MBX_SUCCESS) {
9848                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
9849                                 "0351 Config MSI mailbox command failed, "
9850                                 "mbxCmd x%x, mbxStatus x%x\n",
9851                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
9852                 goto mbx_fail_out;
9853         }
9854
9855         /* Free memory allocated for mailbox command */
9856         mempool_free(pmb, phba->mbox_mem_pool);
9857         return rc;
9858
9859 mbx_fail_out:
9860         /* Free memory allocated for mailbox command */
9861         mempool_free(pmb, phba->mbox_mem_pool);
9862
9863 mem_fail_out:
9864         /* free the irq already requested */
9865         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
9866
9867 irq_fail_out:
9868         /* free the irq already requested */
9869         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
9870
9871 msi_fail_out:
9872         /* Unconfigure MSI-X capability structure */
9873         pci_free_irq_vectors(phba->pcidev);
9874
9875 vec_fail_out:
9876         return rc;
9877 }
9878
9879 /**
9880  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
9881  * @phba: pointer to lpfc hba data structure.
9882  *
9883  * This routine is invoked to enable the MSI interrupt mode to device with
9884  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
9885  * enable the MSI vector. The device driver is responsible for calling the
9886  * request_irq() to register MSI vector with a interrupt the handler, which
9887  * is done in this function.
9888  *
9889  * Return codes
9890  *      0 - successful
9891  *      other values - error
9892  */
9893 static int
9894 lpfc_sli_enable_msi(struct lpfc_hba *phba)
9895 {
9896         int rc;
9897
9898         rc = pci_enable_msi(phba->pcidev);
9899         if (!rc)
9900                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9901                                 "0462 PCI enable MSI mode success.\n");
9902         else {
9903                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9904                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
9905                 return rc;
9906         }
9907
9908         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9909                          0, LPFC_DRIVER_NAME, phba);
9910         if (rc) {
9911                 pci_disable_msi(phba->pcidev);
9912                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9913                                 "0478 MSI request_irq failed (%d)\n", rc);
9914         }
9915         return rc;
9916 }
9917
9918 /**
9919  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
9920  * @phba: pointer to lpfc hba data structure.
9921  *
9922  * This routine is invoked to enable device interrupt and associate driver's
9923  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
9924  * spec. Depends on the interrupt mode configured to the driver, the driver
9925  * will try to fallback from the configured interrupt mode to an interrupt
9926  * mode which is supported by the platform, kernel, and device in the order
9927  * of:
9928  * MSI-X -> MSI -> IRQ.
9929  *
9930  * Return codes
9931  *   0 - successful
9932  *   other values - error
9933  **/
9934 static uint32_t
9935 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9936 {
9937         uint32_t intr_mode = LPFC_INTR_ERROR;
9938         int retval;
9939
9940         if (cfg_mode == 2) {
9941                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
9942                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
9943                 if (!retval) {
9944                         /* Now, try to enable MSI-X interrupt mode */
9945                         retval = lpfc_sli_enable_msix(phba);
9946                         if (!retval) {
9947                                 /* Indicate initialization to MSI-X mode */
9948                                 phba->intr_type = MSIX;
9949                                 intr_mode = 2;
9950                         }
9951                 }
9952         }
9953
9954         /* Fallback to MSI if MSI-X initialization failed */
9955         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9956                 retval = lpfc_sli_enable_msi(phba);
9957                 if (!retval) {
9958                         /* Indicate initialization to MSI mode */
9959                         phba->intr_type = MSI;
9960                         intr_mode = 1;
9961                 }
9962         }
9963
9964         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9965         if (phba->intr_type == NONE) {
9966                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9967                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9968                 if (!retval) {
9969                         /* Indicate initialization to INTx mode */
9970                         phba->intr_type = INTx;
9971                         intr_mode = 0;
9972                 }
9973         }
9974         return intr_mode;
9975 }
9976
9977 /**
9978  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
9979  * @phba: pointer to lpfc hba data structure.
9980  *
9981  * This routine is invoked to disable device interrupt and disassociate the
9982  * driver's interrupt handler(s) from interrupt vector(s) to device with
9983  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
9984  * release the interrupt vector(s) for the message signaled interrupt.
9985  **/
9986 static void
9987 lpfc_sli_disable_intr(struct lpfc_hba *phba)
9988 {
9989         int nr_irqs, i;
9990
9991         if (phba->intr_type == MSIX)
9992                 nr_irqs = LPFC_MSIX_VECTORS;
9993         else
9994                 nr_irqs = 1;
9995
9996         for (i = 0; i < nr_irqs; i++)
9997                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
9998         pci_free_irq_vectors(phba->pcidev);
9999
10000         /* Reset interrupt management states */
10001         phba->intr_type = NONE;
10002         phba->sli.slistat.sli_intr = 0;
10003 }
10004
10005 /**
10006  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10007  * @phba: pointer to lpfc hba data structure.
10008  * @vectors: number of msix vectors allocated.
10009  *
10010  * The routine will figure out the CPU affinity assignment for every
10011  * MSI-X vector allocated for the HBA.  The hba_eq_hdl will be updated
10012  * with a pointer to the CPU mask that defines ALL the CPUs this vector
10013  * can be associated with. If the vector can be unquely associated with
10014  * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
10015  * In addition, the CPU to IO channel mapping will be calculated
10016  * and the phba->sli4_hba.cpu_map array will reflect this.
10017  */
10018 static void
10019 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10020 {
10021         struct lpfc_vector_map_info *cpup;
10022         int index = 0;
10023         int vec = 0;
10024         int cpu;
10025 #ifdef CONFIG_X86
10026         struct cpuinfo_x86 *cpuinfo;
10027 #endif
10028
10029         /* Init cpu_map array */
10030         memset(phba->sli4_hba.cpu_map, 0xff,
10031                (sizeof(struct lpfc_vector_map_info) *
10032                phba->sli4_hba.num_present_cpu));
10033
10034         /* Update CPU map with physical id and core id of each CPU */
10035         cpup = phba->sli4_hba.cpu_map;
10036         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
10037 #ifdef CONFIG_X86
10038                 cpuinfo = &cpu_data(cpu);
10039                 cpup->phys_id = cpuinfo->phys_proc_id;
10040                 cpup->core_id = cpuinfo->cpu_core_id;
10041 #else
10042                 /* No distinction between CPUs for other platforms */
10043                 cpup->phys_id = 0;
10044                 cpup->core_id = 0;
10045 #endif
10046                 cpup->channel_id = index;  /* For now round robin */
10047                 cpup->irq = pci_irq_vector(phba->pcidev, vec);
10048                 vec++;
10049                 if (vec >= vectors)
10050                         vec = 0;
10051                 index++;
10052                 if (index >= phba->cfg_fcp_io_channel)
10053                         index = 0;
10054                 cpup++;
10055         }
10056 }
10057
10058
10059 /**
10060  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
10061  * @phba: pointer to lpfc hba data structure.
10062  *
10063  * This routine is invoked to enable the MSI-X interrupt vectors to device
10064  * with SLI-4 interface spec.
10065  *
10066  * Return codes
10067  * 0 - successful
10068  * other values - error
10069  **/
10070 static int
10071 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
10072 {
10073         int vectors, rc, index;
10074         char *name;
10075
10076         /* Set up MSI-X multi-message vectors */
10077         vectors = phba->io_channel_irqs;
10078         if (phba->cfg_fof)
10079                 vectors++;
10080
10081         rc = pci_alloc_irq_vectors(phba->pcidev,
10082                                 (phba->nvmet_support) ? 1 : 2,
10083                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
10084         if (rc < 0) {
10085                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10086                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
10087                 goto vec_fail_out;
10088         }
10089         vectors = rc;
10090
10091         /* Assign MSI-X vectors to interrupt handlers */
10092         for (index = 0; index < vectors; index++) {
10093                 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
10094                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
10095                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
10096                          LPFC_DRIVER_HANDLER_NAME"%d", index);
10097
10098                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10099                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10100                 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
10101                 if (phba->cfg_fof && (index == (vectors - 1)))
10102                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
10103                                  &lpfc_sli4_fof_intr_handler, 0,
10104                                  name,
10105                                  &phba->sli4_hba.hba_eq_hdl[index]);
10106                 else
10107                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
10108                                  &lpfc_sli4_hba_intr_handler, 0,
10109                                  name,
10110                                  &phba->sli4_hba.hba_eq_hdl[index]);
10111                 if (rc) {
10112                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10113                                         "0486 MSI-X fast-path (%d) "
10114                                         "request_irq failed (%d)\n", index, rc);
10115                         goto cfg_fail_out;
10116                 }
10117         }
10118
10119         if (phba->cfg_fof)
10120                 vectors--;
10121
10122         if (vectors != phba->io_channel_irqs) {
10123                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10124                                 "3238 Reducing IO channels to match number of "
10125                                 "MSI-X vectors, requested %d got %d\n",
10126                                 phba->io_channel_irqs, vectors);
10127                 if (phba->cfg_fcp_io_channel > vectors)
10128                         phba->cfg_fcp_io_channel = vectors;
10129                 if (phba->cfg_nvme_io_channel > vectors)
10130                         phba->cfg_nvme_io_channel = vectors;
10131                 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
10132                         phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10133                 else
10134                         phba->io_channel_irqs = phba->cfg_nvme_io_channel;
10135         }
10136         lpfc_cpu_affinity_check(phba, vectors);
10137
10138         return rc;
10139
10140 cfg_fail_out:
10141         /* free the irq already requested */
10142         for (--index; index >= 0; index--)
10143                 free_irq(pci_irq_vector(phba->pcidev, index),
10144                                 &phba->sli4_hba.hba_eq_hdl[index]);
10145
10146         /* Unconfigure MSI-X capability structure */
10147         pci_free_irq_vectors(phba->pcidev);
10148
10149 vec_fail_out:
10150         return rc;
10151 }
10152
10153 /**
10154  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
10155  * @phba: pointer to lpfc hba data structure.
10156  *
10157  * This routine is invoked to enable the MSI interrupt mode to device with
10158  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
10159  * to enable the MSI vector. The device driver is responsible for calling
10160  * the request_irq() to register MSI vector with a interrupt the handler,
10161  * which is done in this function.
10162  *
10163  * Return codes
10164  *      0 - successful
10165  *      other values - error
10166  **/
10167 static int
10168 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
10169 {
10170         int rc, index;
10171
10172         rc = pci_enable_msi(phba->pcidev);
10173         if (!rc)
10174                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10175                                 "0487 PCI enable MSI mode success.\n");
10176         else {
10177                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10178                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
10179                 return rc;
10180         }
10181
10182         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10183                          0, LPFC_DRIVER_NAME, phba);
10184         if (rc) {
10185                 pci_disable_msi(phba->pcidev);
10186                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10187                                 "0490 MSI request_irq failed (%d)\n", rc);
10188                 return rc;
10189         }
10190
10191         for (index = 0; index < phba->io_channel_irqs; index++) {
10192                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10193                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10194         }
10195
10196         if (phba->cfg_fof) {
10197                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10198                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10199         }
10200         return 0;
10201 }
10202
10203 /**
10204  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
10205  * @phba: pointer to lpfc hba data structure.
10206  *
10207  * This routine is invoked to enable device interrupt and associate driver's
10208  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
10209  * interface spec. Depends on the interrupt mode configured to the driver,
10210  * the driver will try to fallback from the configured interrupt mode to an
10211  * interrupt mode which is supported by the platform, kernel, and device in
10212  * the order of:
10213  * MSI-X -> MSI -> IRQ.
10214  *
10215  * Return codes
10216  *      0 - successful
10217  *      other values - error
10218  **/
10219 static uint32_t
10220 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10221 {
10222         uint32_t intr_mode = LPFC_INTR_ERROR;
10223         int retval, idx;
10224
10225         if (cfg_mode == 2) {
10226                 /* Preparation before conf_msi mbox cmd */
10227                 retval = 0;
10228                 if (!retval) {
10229                         /* Now, try to enable MSI-X interrupt mode */
10230                         retval = lpfc_sli4_enable_msix(phba);
10231                         if (!retval) {
10232                                 /* Indicate initialization to MSI-X mode */
10233                                 phba->intr_type = MSIX;
10234                                 intr_mode = 2;
10235                         }
10236                 }
10237         }
10238
10239         /* Fallback to MSI if MSI-X initialization failed */
10240         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10241                 retval = lpfc_sli4_enable_msi(phba);
10242                 if (!retval) {
10243                         /* Indicate initialization to MSI mode */
10244                         phba->intr_type = MSI;
10245                         intr_mode = 1;
10246                 }
10247         }
10248
10249         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10250         if (phba->intr_type == NONE) {
10251                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10252                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10253                 if (!retval) {
10254                         struct lpfc_hba_eq_hdl *eqhdl;
10255
10256                         /* Indicate initialization to INTx mode */
10257                         phba->intr_type = INTx;
10258                         intr_mode = 0;
10259
10260                         for (idx = 0; idx < phba->io_channel_irqs; idx++) {
10261                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10262                                 eqhdl->idx = idx;
10263                                 eqhdl->phba = phba;
10264                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
10265                         }
10266                         if (phba->cfg_fof) {
10267                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10268                                 eqhdl->idx = idx;
10269                                 eqhdl->phba = phba;
10270                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
10271                         }
10272                 }
10273         }
10274         return intr_mode;
10275 }
10276
10277 /**
10278  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
10279  * @phba: pointer to lpfc hba data structure.
10280  *
10281  * This routine is invoked to disable device interrupt and disassociate
10282  * the driver's interrupt handler(s) from interrupt vector(s) to device
10283  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
10284  * will release the interrupt vector(s) for the message signaled interrupt.
10285  **/
10286 static void
10287 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
10288 {
10289         /* Disable the currently initialized interrupt mode */
10290         if (phba->intr_type == MSIX) {
10291                 int index;
10292
10293                 /* Free up MSI-X multi-message vectors */
10294                 for (index = 0; index < phba->io_channel_irqs; index++)
10295                         free_irq(pci_irq_vector(phba->pcidev, index),
10296                                         &phba->sli4_hba.hba_eq_hdl[index]);
10297
10298                 if (phba->cfg_fof)
10299                         free_irq(pci_irq_vector(phba->pcidev, index),
10300                                         &phba->sli4_hba.hba_eq_hdl[index]);
10301         } else {
10302                 free_irq(phba->pcidev->irq, phba);
10303         }
10304
10305         pci_free_irq_vectors(phba->pcidev);
10306
10307         /* Reset interrupt management states */
10308         phba->intr_type = NONE;
10309         phba->sli.slistat.sli_intr = 0;
10310 }
10311
10312 /**
10313  * lpfc_unset_hba - Unset SLI3 hba device initialization
10314  * @phba: pointer to lpfc hba data structure.
10315  *
10316  * This routine is invoked to unset the HBA device initialization steps to
10317  * a device with SLI-3 interface spec.
10318  **/
10319 static void
10320 lpfc_unset_hba(struct lpfc_hba *phba)
10321 {
10322         struct lpfc_vport *vport = phba->pport;
10323         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
10324
10325         spin_lock_irq(shost->host_lock);
10326         vport->load_flag |= FC_UNLOADING;
10327         spin_unlock_irq(shost->host_lock);
10328
10329         kfree(phba->vpi_bmask);
10330         kfree(phba->vpi_ids);
10331
10332         lpfc_stop_hba_timers(phba);
10333
10334         phba->pport->work_port_events = 0;
10335
10336         lpfc_sli_hba_down(phba);
10337
10338         lpfc_sli_brdrestart(phba);
10339
10340         lpfc_sli_disable_intr(phba);
10341
10342         return;
10343 }
10344
10345 /**
10346  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
10347  * @phba: Pointer to HBA context object.
10348  *
10349  * This function is called in the SLI4 code path to wait for completion
10350  * of device's XRIs exchange busy. It will check the XRI exchange busy
10351  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
10352  * that, it will check the XRI exchange busy on outstanding FCP and ELS
10353  * I/Os every 30 seconds, log error message, and wait forever. Only when
10354  * all XRI exchange busy complete, the driver unload shall proceed with
10355  * invoking the function reset ioctl mailbox command to the CNA and the
10356  * the rest of the driver unload resource release.
10357  **/
10358 static void
10359 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
10360 {
10361         int wait_time = 0;
10362         int nvme_xri_cmpl = 1;
10363         int nvmet_xri_cmpl = 1;
10364         int fcp_xri_cmpl = 1;
10365         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10366
10367         /* Driver just aborted IOs during the hba_unset process.  Pause
10368          * here to give the HBA time to complete the IO and get entries
10369          * into the abts lists.
10370          */
10371         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
10372
10373         /* Wait for NVME pending IO to flush back to transport. */
10374         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
10375                 lpfc_nvme_wait_for_io_drain(phba);
10376
10377         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10378                 fcp_xri_cmpl =
10379                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
10380         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10381                 nvme_xri_cmpl =
10382                         list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
10383                 nvmet_xri_cmpl =
10384                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10385         }
10386
10387         while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
10388                !nvmet_xri_cmpl) {
10389                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10390                         if (!nvme_xri_cmpl)
10391                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10392                                                 "6100 NVME XRI exchange busy "
10393                                                 "wait time: %d seconds.\n",
10394                                                 wait_time/1000);
10395                         if (!fcp_xri_cmpl)
10396                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10397                                                 "2877 FCP XRI exchange busy "
10398                                                 "wait time: %d seconds.\n",
10399                                                 wait_time/1000);
10400                         if (!els_xri_cmpl)
10401                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10402                                                 "2878 ELS XRI exchange busy "
10403                                                 "wait time: %d seconds.\n",
10404                                                 wait_time/1000);
10405                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
10406                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
10407                 } else {
10408                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
10409                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
10410                 }
10411                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10412                         nvme_xri_cmpl = list_empty(
10413                                 &phba->sli4_hba.lpfc_abts_nvme_buf_list);
10414                         nvmet_xri_cmpl = list_empty(
10415                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10416                 }
10417
10418                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10419                         fcp_xri_cmpl = list_empty(
10420                                 &phba->sli4_hba.lpfc_abts_scsi_buf_list);
10421
10422                 els_xri_cmpl =
10423                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10424
10425         }
10426 }
10427
10428 /**
10429  * lpfc_sli4_hba_unset - Unset the fcoe hba
10430  * @phba: Pointer to HBA context object.
10431  *
10432  * This function is called in the SLI4 code path to reset the HBA's FCoE
10433  * function. The caller is not required to hold any lock. This routine
10434  * issues PCI function reset mailbox command to reset the FCoE function.
10435  * At the end of the function, it calls lpfc_hba_down_post function to
10436  * free any pending commands.
10437  **/
10438 static void
10439 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10440 {
10441         int wait_cnt = 0;
10442         LPFC_MBOXQ_t *mboxq;
10443         struct pci_dev *pdev = phba->pcidev;
10444
10445         lpfc_stop_hba_timers(phba);
10446         phba->sli4_hba.intr_enable = 0;
10447
10448         /*
10449          * Gracefully wait out the potential current outstanding asynchronous
10450          * mailbox command.
10451          */
10452
10453         /* First, block any pending async mailbox command from posted */
10454         spin_lock_irq(&phba->hbalock);
10455         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10456         spin_unlock_irq(&phba->hbalock);
10457         /* Now, trying to wait it out if we can */
10458         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10459                 msleep(10);
10460                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10461                         break;
10462         }
10463         /* Forcefully release the outstanding mailbox command if timed out */
10464         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10465                 spin_lock_irq(&phba->hbalock);
10466                 mboxq = phba->sli.mbox_active;
10467                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10468                 __lpfc_mbox_cmpl_put(phba, mboxq);
10469                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10470                 phba->sli.mbox_active = NULL;
10471                 spin_unlock_irq(&phba->hbalock);
10472         }
10473
10474         /* Abort all iocbs associated with the hba */
10475         lpfc_sli_hba_iocb_abort(phba);
10476
10477         /* Wait for completion of device XRI exchange busy */
10478         lpfc_sli4_xri_exchange_busy_wait(phba);
10479
10480         /* Disable PCI subsystem interrupt */
10481         lpfc_sli4_disable_intr(phba);
10482
10483         /* Disable SR-IOV if enabled */
10484         if (phba->cfg_sriov_nr_virtfn)
10485                 pci_disable_sriov(pdev);
10486
10487         /* Stop kthread signal shall trigger work_done one more time */
10488         kthread_stop(phba->worker_thread);
10489
10490         /* Unset the queues shared with the hardware then release all
10491          * allocated resources.
10492          */
10493         lpfc_sli4_queue_unset(phba);
10494         lpfc_sli4_queue_destroy(phba);
10495
10496         /* Reset SLI4 HBA FCoE function */
10497         lpfc_pci_function_reset(phba);
10498
10499         /* Stop the SLI4 device port */
10500         phba->pport->work_port_events = 0;
10501 }
10502
10503  /**
10504  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
10505  * @phba: Pointer to HBA context object.
10506  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10507  *
10508  * This function is called in the SLI4 code path to read the port's
10509  * sli4 capabilities.
10510  *
10511  * This function may be be called from any context that can block-wait
10512  * for the completion.  The expectation is that this routine is called
10513  * typically from probe_one or from the online routine.
10514  **/
10515 int
10516 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10517 {
10518         int rc;
10519         struct lpfc_mqe *mqe;
10520         struct lpfc_pc_sli4_params *sli4_params;
10521         uint32_t mbox_tmo;
10522
10523         rc = 0;
10524         mqe = &mboxq->u.mqe;
10525
10526         /* Read the port's SLI4 Parameters port capabilities */
10527         lpfc_pc_sli4_params(mboxq);
10528         if (!phba->sli4_hba.intr_enable)
10529                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10530         else {
10531                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10532                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10533         }
10534
10535         if (unlikely(rc))
10536                 return 1;
10537
10538         sli4_params = &phba->sli4_hba.pc_sli4_params;
10539         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
10540         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
10541         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
10542         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
10543                                              &mqe->un.sli4_params);
10544         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
10545                                              &mqe->un.sli4_params);
10546         sli4_params->proto_types = mqe->un.sli4_params.word3;
10547         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
10548         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
10549         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
10550         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
10551         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
10552         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
10553         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
10554         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
10555         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
10556         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
10557         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
10558         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
10559         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
10560         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
10561         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
10562         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
10563         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
10564         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
10565         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
10566         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
10567
10568         /* Make sure that sge_supp_len can be handled by the driver */
10569         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10570                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10571
10572         return rc;
10573 }
10574
10575 /**
10576  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10577  * @phba: Pointer to HBA context object.
10578  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10579  *
10580  * This function is called in the SLI4 code path to read the port's
10581  * sli4 capabilities.
10582  *
10583  * This function may be be called from any context that can block-wait
10584  * for the completion.  The expectation is that this routine is called
10585  * typically from probe_one or from the online routine.
10586  **/
10587 int
10588 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10589 {
10590         int rc;
10591         struct lpfc_mqe *mqe = &mboxq->u.mqe;
10592         struct lpfc_pc_sli4_params *sli4_params;
10593         uint32_t mbox_tmo;
10594         int length;
10595         bool exp_wqcq_pages = true;
10596         struct lpfc_sli4_parameters *mbx_sli4_parameters;
10597
10598         /*
10599          * By default, the driver assumes the SLI4 port requires RPI
10600          * header postings.  The SLI4_PARAM response will correct this
10601          * assumption.
10602          */
10603         phba->sli4_hba.rpi_hdrs_in_use = 1;
10604
10605         /* Read the port's SLI4 Config Parameters */
10606         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10607                   sizeof(struct lpfc_sli4_cfg_mhdr));
10608         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10609                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10610                          length, LPFC_SLI4_MBX_EMBED);
10611         if (!phba->sli4_hba.intr_enable)
10612                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10613         else {
10614                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10615                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10616         }
10617         if (unlikely(rc))
10618                 return rc;
10619         sli4_params = &phba->sli4_hba.pc_sli4_params;
10620         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10621         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10622         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10623         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10624         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10625                                              mbx_sli4_parameters);
10626         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10627                                              mbx_sli4_parameters);
10628         if (bf_get(cfg_phwq, mbx_sli4_parameters))
10629                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10630         else
10631                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10632         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10633         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
10634         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10635         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10636         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10637         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10638         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10639         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
10640         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
10641         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10642         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10643                                             mbx_sli4_parameters);
10644         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10645         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10646                                            mbx_sli4_parameters);
10647         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10648         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10649         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10650                               bf_get(cfg_xib, mbx_sli4_parameters));
10651
10652         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10653             !phba->nvme_support) {
10654                 phba->nvme_support = 0;
10655                 phba->nvmet_support = 0;
10656                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF;
10657                 phba->cfg_nvme_io_channel = 0;
10658                 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10659                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10660                                 "6101 Disabling NVME support: "
10661                                 "Not supported by firmware: %d %d\n",
10662                                 bf_get(cfg_nvme, mbx_sli4_parameters),
10663                                 bf_get(cfg_xib, mbx_sli4_parameters));
10664
10665                 /* If firmware doesn't support NVME, just use SCSI support */
10666                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10667                         return -ENODEV;
10668                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10669         }
10670
10671         /* Only embed PBDE for if_type 6 */
10672         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
10673             LPFC_SLI_INTF_IF_TYPE_6) {
10674                 phba->fcp_embed_pbde = 1;
10675                 phba->nvme_embed_pbde = 1;
10676         }
10677
10678         /* PBDE support requires xib be set */
10679         if (!bf_get(cfg_xib, mbx_sli4_parameters)) {
10680                 phba->fcp_embed_pbde = 0;
10681                 phba->nvme_embed_pbde = 0;
10682         }
10683
10684         /*
10685          * To support Suppress Response feature we must satisfy 3 conditions.
10686          * lpfc_suppress_rsp module parameter must be set (default).
10687          * In SLI4-Parameters Descriptor:
10688          * Extended Inline Buffers (XIB) must be supported.
10689          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
10690          * (double negative).
10691          */
10692         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
10693             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
10694                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10695         else
10696                 phba->cfg_suppress_rsp = 0;
10697
10698         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
10699                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
10700
10701         /* Make sure that sge_supp_len can be handled by the driver */
10702         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10703                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10704
10705         /*
10706          * Check whether the adapter supports an embedded copy of the
10707          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
10708          * to use this option, 128-byte WQEs must be used.
10709          */
10710         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10711                 phba->fcp_embed_io = 1;
10712         else
10713                 phba->fcp_embed_io = 0;
10714
10715         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
10716                         "6422 XIB %d: FCP %d %d NVME %d %d %d %d\n",
10717                         bf_get(cfg_xib, mbx_sli4_parameters),
10718                         phba->fcp_embed_pbde, phba->fcp_embed_io,
10719                         phba->nvme_support, phba->nvme_embed_pbde,
10720                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
10721
10722         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
10723             LPFC_SLI_INTF_IF_TYPE_2) &&
10724             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
10725                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
10726                 exp_wqcq_pages = false;
10727
10728         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
10729             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
10730             exp_wqcq_pages &&
10731             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
10732                 phba->enab_exp_wqcq_pages = 1;
10733         else
10734                 phba->enab_exp_wqcq_pages = 0;
10735         /*
10736          * Check if the SLI port supports MDS Diagnostics
10737          */
10738         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10739                 phba->mds_diags_support = 1;
10740         else
10741                 phba->mds_diags_support = 0;
10742         return 0;
10743 }
10744
10745 /**
10746  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10747  * @pdev: pointer to PCI device
10748  * @pid: pointer to PCI device identifier
10749  *
10750  * This routine is to be called to attach a device with SLI-3 interface spec
10751  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10752  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10753  * information of the device and driver to see if the driver state that it can
10754  * support this kind of device. If the match is successful, the driver core
10755  * invokes this routine. If this routine determines it can claim the HBA, it
10756  * does all the initialization that it needs to do to handle the HBA properly.
10757  *
10758  * Return code
10759  *      0 - driver can claim the device
10760  *      negative value - driver can not claim the device
10761  **/
10762 static int
10763 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10764 {
10765         struct lpfc_hba   *phba;
10766         struct lpfc_vport *vport = NULL;
10767         struct Scsi_Host  *shost = NULL;
10768         int error;
10769         uint32_t cfg_mode, intr_mode;
10770
10771         /* Allocate memory for HBA structure */
10772         phba = lpfc_hba_alloc(pdev);
10773         if (!phba)
10774                 return -ENOMEM;
10775
10776         /* Perform generic PCI device enabling operation */
10777         error = lpfc_enable_pci_dev(phba);
10778         if (error)
10779                 goto out_free_phba;
10780
10781         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
10782         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10783         if (error)
10784                 goto out_disable_pci_dev;
10785
10786         /* Set up SLI-3 specific device PCI memory space */
10787         error = lpfc_sli_pci_mem_setup(phba);
10788         if (error) {
10789                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10790                                 "1402 Failed to set up pci memory space.\n");
10791                 goto out_disable_pci_dev;
10792         }
10793
10794         /* Set up SLI-3 specific device driver resources */
10795         error = lpfc_sli_driver_resource_setup(phba);
10796         if (error) {
10797                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10798                                 "1404 Failed to set up driver resource.\n");
10799                 goto out_unset_pci_mem_s3;
10800         }
10801
10802         /* Initialize and populate the iocb list per host */
10803
10804         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
10805         if (error) {
10806                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10807                                 "1405 Failed to initialize iocb list.\n");
10808                 goto out_unset_driver_resource_s3;
10809         }
10810
10811         /* Set up common device driver resources */
10812         error = lpfc_setup_driver_resource_phase2(phba);
10813         if (error) {
10814                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10815                                 "1406 Failed to set up driver resource.\n");
10816                 goto out_free_iocb_list;
10817         }
10818
10819         /* Get the default values for Model Name and Description */
10820         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10821
10822         /* Create SCSI host to the physical port */
10823         error = lpfc_create_shost(phba);
10824         if (error) {
10825                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10826                                 "1407 Failed to create scsi host.\n");
10827                 goto out_unset_driver_resource;
10828         }
10829
10830         /* Configure sysfs attributes */
10831         vport = phba->pport;
10832         error = lpfc_alloc_sysfs_attr(vport);
10833         if (error) {
10834                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10835                                 "1476 Failed to allocate sysfs attr\n");
10836                 goto out_destroy_shost;
10837         }
10838
10839         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10840         /* Now, trying to enable interrupt and bring up the device */
10841         cfg_mode = phba->cfg_use_msi;
10842         while (true) {
10843                 /* Put device to a known state before enabling interrupt */
10844                 lpfc_stop_port(phba);
10845                 /* Configure and enable interrupt */
10846                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
10847                 if (intr_mode == LPFC_INTR_ERROR) {
10848                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10849                                         "0431 Failed to enable interrupt.\n");
10850                         error = -ENODEV;
10851                         goto out_free_sysfs_attr;
10852                 }
10853                 /* SLI-3 HBA setup */
10854                 if (lpfc_sli_hba_setup(phba)) {
10855                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10856                                         "1477 Failed to set up hba\n");
10857                         error = -ENODEV;
10858                         goto out_remove_device;
10859                 }
10860
10861                 /* Wait 50ms for the interrupts of previous mailbox commands */
10862                 msleep(50);
10863                 /* Check active interrupts on message signaled interrupts */
10864                 if (intr_mode == 0 ||
10865                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
10866                         /* Log the current active interrupt mode */
10867                         phba->intr_mode = intr_mode;
10868                         lpfc_log_intr_mode(phba, intr_mode);
10869                         break;
10870                 } else {
10871                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10872                                         "0447 Configure interrupt mode (%d) "
10873                                         "failed active interrupt test.\n",
10874                                         intr_mode);
10875                         /* Disable the current interrupt mode */
10876                         lpfc_sli_disable_intr(phba);
10877                         /* Try next level of interrupt mode */
10878                         cfg_mode = --intr_mode;
10879                 }
10880         }
10881
10882         /* Perform post initialization setup */
10883         lpfc_post_init_setup(phba);
10884
10885         /* Check if there are static vports to be created. */
10886         lpfc_create_static_vport(phba);
10887
10888         return 0;
10889
10890 out_remove_device:
10891         lpfc_unset_hba(phba);
10892 out_free_sysfs_attr:
10893         lpfc_free_sysfs_attr(vport);
10894 out_destroy_shost:
10895         lpfc_destroy_shost(phba);
10896 out_unset_driver_resource:
10897         lpfc_unset_driver_resource_phase2(phba);
10898 out_free_iocb_list:
10899         lpfc_free_iocb_list(phba);
10900 out_unset_driver_resource_s3:
10901         lpfc_sli_driver_resource_unset(phba);
10902 out_unset_pci_mem_s3:
10903         lpfc_sli_pci_mem_unset(phba);
10904 out_disable_pci_dev:
10905         lpfc_disable_pci_dev(phba);
10906         if (shost)
10907                 scsi_host_put(shost);
10908 out_free_phba:
10909         lpfc_hba_free(phba);
10910         return error;
10911 }
10912
10913 /**
10914  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
10915  * @pdev: pointer to PCI device
10916  *
10917  * This routine is to be called to disattach a device with SLI-3 interface
10918  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10919  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10920  * device to be removed from the PCI subsystem properly.
10921  **/
10922 static void
10923 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
10924 {
10925         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
10926         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10927         struct lpfc_vport **vports;
10928         struct lpfc_hba   *phba = vport->phba;
10929         int i;
10930
10931         spin_lock_irq(&phba->hbalock);
10932         vport->load_flag |= FC_UNLOADING;
10933         spin_unlock_irq(&phba->hbalock);
10934
10935         lpfc_free_sysfs_attr(vport);
10936
10937         /* Release all the vports against this physical port */
10938         vports = lpfc_create_vport_work_array(phba);
10939         if (vports != NULL)
10940                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10941                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10942                                 continue;
10943                         fc_vport_terminate(vports[i]->fc_vport);
10944                 }
10945         lpfc_destroy_vport_work_array(phba, vports);
10946
10947         /* Remove FC host and then SCSI host with the physical port */
10948         fc_remove_host(shost);
10949         scsi_remove_host(shost);
10950
10951         lpfc_cleanup(vport);
10952
10953         /*
10954          * Bring down the SLI Layer. This step disable all interrupts,
10955          * clears the rings, discards all mailbox commands, and resets
10956          * the HBA.
10957          */
10958
10959         /* HBA interrupt will be disabled after this call */
10960         lpfc_sli_hba_down(phba);
10961         /* Stop kthread signal shall trigger work_done one more time */
10962         kthread_stop(phba->worker_thread);
10963         /* Final cleanup of txcmplq and reset the HBA */
10964         lpfc_sli_brdrestart(phba);
10965
10966         kfree(phba->vpi_bmask);
10967         kfree(phba->vpi_ids);
10968
10969         lpfc_stop_hba_timers(phba);
10970         spin_lock_irq(&phba->hbalock);
10971         list_del_init(&vport->listentry);
10972         spin_unlock_irq(&phba->hbalock);
10973
10974         lpfc_debugfs_terminate(vport);
10975
10976         /* Disable SR-IOV if enabled */
10977         if (phba->cfg_sriov_nr_virtfn)
10978                 pci_disable_sriov(pdev);
10979
10980         /* Disable interrupt */
10981         lpfc_sli_disable_intr(phba);
10982
10983         scsi_host_put(shost);
10984
10985         /*
10986          * Call scsi_free before mem_free since scsi bufs are released to their
10987          * corresponding pools here.
10988          */
10989         lpfc_scsi_free(phba);
10990         lpfc_mem_free_all(phba);
10991
10992         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
10993                           phba->hbqslimp.virt, phba->hbqslimp.phys);
10994
10995         /* Free resources associated with SLI2 interface */
10996         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
10997                           phba->slim2p.virt, phba->slim2p.phys);
10998
10999         /* unmap adapter SLIM and Control Registers */
11000         iounmap(phba->ctrl_regs_memmap_p);
11001         iounmap(phba->slim_memmap_p);
11002
11003         lpfc_hba_free(phba);
11004
11005         pci_release_mem_regions(pdev);
11006         pci_disable_device(pdev);
11007 }
11008
11009 /**
11010  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
11011  * @pdev: pointer to PCI device
11012  * @msg: power management message
11013  *
11014  * This routine is to be called from the kernel's PCI subsystem to support
11015  * system Power Management (PM) to device with SLI-3 interface spec. When
11016  * PM invokes this method, it quiesces the device by stopping the driver's
11017  * worker thread for the device, turning off device's interrupt and DMA,
11018  * and bring the device offline. Note that as the driver implements the
11019  * minimum PM requirements to a power-aware driver's PM support for the
11020  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11021  * to the suspend() method call will be treated as SUSPEND and the driver will
11022  * fully reinitialize its device during resume() method call, the driver will
11023  * set device to PCI_D3hot state in PCI config space instead of setting it
11024  * according to the @msg provided by the PM.
11025  *
11026  * Return code
11027  *      0 - driver suspended the device
11028  *      Error otherwise
11029  **/
11030 static int
11031 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
11032 {
11033         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11034         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11035
11036         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11037                         "0473 PCI device Power Management suspend.\n");
11038
11039         /* Bring down the device */
11040         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11041         lpfc_offline(phba);
11042         kthread_stop(phba->worker_thread);
11043
11044         /* Disable interrupt from device */
11045         lpfc_sli_disable_intr(phba);
11046
11047         /* Save device state to PCI config space */
11048         pci_save_state(pdev);
11049         pci_set_power_state(pdev, PCI_D3hot);
11050
11051         return 0;
11052 }
11053
11054 /**
11055  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
11056  * @pdev: pointer to PCI device
11057  *
11058  * This routine is to be called from the kernel's PCI subsystem to support
11059  * system Power Management (PM) to device with SLI-3 interface spec. When PM
11060  * invokes this method, it restores the device's PCI config space state and
11061  * fully reinitializes the device and brings it online. Note that as the
11062  * driver implements the minimum PM requirements to a power-aware driver's
11063  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
11064  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
11065  * driver will fully reinitialize its device during resume() method call,
11066  * the device will be set to PCI_D0 directly in PCI config space before
11067  * restoring the state.
11068  *
11069  * Return code
11070  *      0 - driver suspended the device
11071  *      Error otherwise
11072  **/
11073 static int
11074 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
11075 {
11076         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11077         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11078         uint32_t intr_mode;
11079         int error;
11080
11081         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11082                         "0452 PCI device Power Management resume.\n");
11083
11084         /* Restore device state from PCI config space */
11085         pci_set_power_state(pdev, PCI_D0);
11086         pci_restore_state(pdev);
11087
11088         /*
11089          * As the new kernel behavior of pci_restore_state() API call clears
11090          * device saved_state flag, need to save the restored state again.
11091          */
11092         pci_save_state(pdev);
11093
11094         if (pdev->is_busmaster)
11095                 pci_set_master(pdev);
11096
11097         /* Startup the kernel thread for this host adapter. */
11098         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11099                                         "lpfc_worker_%d", phba->brd_no);
11100         if (IS_ERR(phba->worker_thread)) {
11101                 error = PTR_ERR(phba->worker_thread);
11102                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11103                                 "0434 PM resume failed to start worker "
11104                                 "thread: error=x%x.\n", error);
11105                 return error;
11106         }
11107
11108         /* Configure and enable interrupt */
11109         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11110         if (intr_mode == LPFC_INTR_ERROR) {
11111                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11112                                 "0430 PM resume Failed to enable interrupt\n");
11113                 return -EIO;
11114         } else
11115                 phba->intr_mode = intr_mode;
11116
11117         /* Restart HBA and bring it online */
11118         lpfc_sli_brdrestart(phba);
11119         lpfc_online(phba);
11120
11121         /* Log the current active interrupt mode */
11122         lpfc_log_intr_mode(phba, phba->intr_mode);
11123
11124         return 0;
11125 }
11126
11127 /**
11128  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
11129  * @phba: pointer to lpfc hba data structure.
11130  *
11131  * This routine is called to prepare the SLI3 device for PCI slot recover. It
11132  * aborts all the outstanding SCSI I/Os to the pci device.
11133  **/
11134 static void
11135 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
11136 {
11137         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11138                         "2723 PCI channel I/O abort preparing for recovery\n");
11139
11140         /*
11141          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11142          * and let the SCSI mid-layer to retry them to recover.
11143          */
11144         lpfc_sli_abort_fcp_rings(phba);
11145 }
11146
11147 /**
11148  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
11149  * @phba: pointer to lpfc hba data structure.
11150  *
11151  * This routine is called to prepare the SLI3 device for PCI slot reset. It
11152  * disables the device interrupt and pci device, and aborts the internal FCP
11153  * pending I/Os.
11154  **/
11155 static void
11156 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
11157 {
11158         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11159                         "2710 PCI channel disable preparing for reset\n");
11160
11161         /* Block any management I/Os to the device */
11162         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
11163
11164         /* Block all SCSI devices' I/Os on the host */
11165         lpfc_scsi_dev_block(phba);
11166
11167         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11168         lpfc_sli_flush_fcp_rings(phba);
11169
11170         /* stop all timers */
11171         lpfc_stop_hba_timers(phba);
11172
11173         /* Disable interrupt and pci device */
11174         lpfc_sli_disable_intr(phba);
11175         pci_disable_device(phba->pcidev);
11176 }
11177
11178 /**
11179  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
11180  * @phba: pointer to lpfc hba data structure.
11181  *
11182  * This routine is called to prepare the SLI3 device for PCI slot permanently
11183  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11184  * pending I/Os.
11185  **/
11186 static void
11187 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11188 {
11189         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11190                         "2711 PCI channel permanent disable for failure\n");
11191         /* Block all SCSI devices' I/Os on the host */
11192         lpfc_scsi_dev_block(phba);
11193
11194         /* stop all timers */
11195         lpfc_stop_hba_timers(phba);
11196
11197         /* Clean up all driver's outstanding SCSI I/Os */
11198         lpfc_sli_flush_fcp_rings(phba);
11199 }
11200
11201 /**
11202  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
11203  * @pdev: pointer to PCI device.
11204  * @state: the current PCI connection state.
11205  *
11206  * This routine is called from the PCI subsystem for I/O error handling to
11207  * device with SLI-3 interface spec. This function is called by the PCI
11208  * subsystem after a PCI bus error affecting this device has been detected.
11209  * When this function is invoked, it will need to stop all the I/Os and
11210  * interrupt(s) to the device. Once that is done, it will return
11211  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
11212  * as desired.
11213  *
11214  * Return codes
11215  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
11216  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11217  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11218  **/
11219 static pci_ers_result_t
11220 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
11221 {
11222         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11223         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11224
11225         switch (state) {
11226         case pci_channel_io_normal:
11227                 /* Non-fatal error, prepare for recovery */
11228                 lpfc_sli_prep_dev_for_recover(phba);
11229                 return PCI_ERS_RESULT_CAN_RECOVER;
11230         case pci_channel_io_frozen:
11231                 /* Fatal error, prepare for slot reset */
11232                 lpfc_sli_prep_dev_for_reset(phba);
11233                 return PCI_ERS_RESULT_NEED_RESET;
11234         case pci_channel_io_perm_failure:
11235                 /* Permanent failure, prepare for device down */
11236                 lpfc_sli_prep_dev_for_perm_failure(phba);
11237                 return PCI_ERS_RESULT_DISCONNECT;
11238         default:
11239                 /* Unknown state, prepare and request slot reset */
11240                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11241                                 "0472 Unknown PCI error state: x%x\n", state);
11242                 lpfc_sli_prep_dev_for_reset(phba);
11243                 return PCI_ERS_RESULT_NEED_RESET;
11244         }
11245 }
11246
11247 /**
11248  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
11249  * @pdev: pointer to PCI device.
11250  *
11251  * This routine is called from the PCI subsystem for error handling to
11252  * device with SLI-3 interface spec. This is called after PCI bus has been
11253  * reset to restart the PCI card from scratch, as if from a cold-boot.
11254  * During the PCI subsystem error recovery, after driver returns
11255  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11256  * recovery and then call this routine before calling the .resume method
11257  * to recover the device. This function will initialize the HBA device,
11258  * enable the interrupt, but it will just put the HBA to offline state
11259  * without passing any I/O traffic.
11260  *
11261  * Return codes
11262  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11263  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11264  */
11265 static pci_ers_result_t
11266 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
11267 {
11268         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11269         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11270         struct lpfc_sli *psli = &phba->sli;
11271         uint32_t intr_mode;
11272
11273         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11274         if (pci_enable_device_mem(pdev)) {
11275                 printk(KERN_ERR "lpfc: Cannot re-enable "
11276                         "PCI device after reset.\n");
11277                 return PCI_ERS_RESULT_DISCONNECT;
11278         }
11279
11280         pci_restore_state(pdev);
11281
11282         /*
11283          * As the new kernel behavior of pci_restore_state() API call clears
11284          * device saved_state flag, need to save the restored state again.
11285          */
11286         pci_save_state(pdev);
11287
11288         if (pdev->is_busmaster)
11289                 pci_set_master(pdev);
11290
11291         spin_lock_irq(&phba->hbalock);
11292         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11293         spin_unlock_irq(&phba->hbalock);
11294
11295         /* Configure and enable interrupt */
11296         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11297         if (intr_mode == LPFC_INTR_ERROR) {
11298                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11299                                 "0427 Cannot re-enable interrupt after "
11300                                 "slot reset.\n");
11301                 return PCI_ERS_RESULT_DISCONNECT;
11302         } else
11303                 phba->intr_mode = intr_mode;
11304
11305         /* Take device offline, it will perform cleanup */
11306         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11307         lpfc_offline(phba);
11308         lpfc_sli_brdrestart(phba);
11309
11310         /* Log the current active interrupt mode */
11311         lpfc_log_intr_mode(phba, phba->intr_mode);
11312
11313         return PCI_ERS_RESULT_RECOVERED;
11314 }
11315
11316 /**
11317  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
11318  * @pdev: pointer to PCI device
11319  *
11320  * This routine is called from the PCI subsystem for error handling to device
11321  * with SLI-3 interface spec. It is called when kernel error recovery tells
11322  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11323  * error recovery. After this call, traffic can start to flow from this device
11324  * again.
11325  */
11326 static void
11327 lpfc_io_resume_s3(struct pci_dev *pdev)
11328 {
11329         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11330         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11331
11332         /* Bring device online, it will be no-op for non-fatal error resume */
11333         lpfc_online(phba);
11334
11335         /* Clean up Advanced Error Reporting (AER) if needed */
11336         if (phba->hba_flag & HBA_AER_ENABLED)
11337                 pci_cleanup_aer_uncorrect_error_status(pdev);
11338 }
11339
11340 /**
11341  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
11342  * @phba: pointer to lpfc hba data structure.
11343  *
11344  * returns the number of ELS/CT IOCBs to reserve
11345  **/
11346 int
11347 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
11348 {
11349         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
11350
11351         if (phba->sli_rev == LPFC_SLI_REV4) {
11352                 if (max_xri <= 100)
11353                         return 10;
11354                 else if (max_xri <= 256)
11355                         return 25;
11356                 else if (max_xri <= 512)
11357                         return 50;
11358                 else if (max_xri <= 1024)
11359                         return 100;
11360                 else if (max_xri <= 1536)
11361                         return 150;
11362                 else if (max_xri <= 2048)
11363                         return 200;
11364                 else
11365                         return 250;
11366         } else
11367                 return 0;
11368 }
11369
11370 /**
11371  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
11372  * @phba: pointer to lpfc hba data structure.
11373  *
11374  * returns the number of ELS/CT + NVMET IOCBs to reserve
11375  **/
11376 int
11377 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
11378 {
11379         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
11380
11381         if (phba->nvmet_support)
11382                 max_xri += LPFC_NVMET_BUF_POST;
11383         return max_xri;
11384 }
11385
11386
11387 static void
11388 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
11389         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
11390         const struct firmware *fw)
11391 {
11392         if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) ||
11393             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
11394              magic_number != MAGIC_NUMER_G6) ||
11395             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
11396              magic_number != MAGIC_NUMER_G7))
11397                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11398                         "3030 This firmware version is not supported on "
11399                         "this HBA model. Device:%x Magic:%x Type:%x "
11400                         "ID:%x Size %d %zd\n",
11401                         phba->pcidev->device, magic_number, ftype, fid,
11402                         fsize, fw->size);
11403         else
11404                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11405                         "3022 FW Download failed. Device:%x Magic:%x Type:%x "
11406                         "ID:%x Size %d %zd\n",
11407                         phba->pcidev->device, magic_number, ftype, fid,
11408                         fsize, fw->size);
11409 }
11410
11411
11412 /**
11413  * lpfc_write_firmware - attempt to write a firmware image to the port
11414  * @fw: pointer to firmware image returned from request_firmware.
11415  * @phba: pointer to lpfc hba data structure.
11416  *
11417  **/
11418 static void
11419 lpfc_write_firmware(const struct firmware *fw, void *context)
11420 {
11421         struct lpfc_hba *phba = (struct lpfc_hba *)context;
11422         char fwrev[FW_REV_STR_SIZE];
11423         struct lpfc_grp_hdr *image;
11424         struct list_head dma_buffer_list;
11425         int i, rc = 0;
11426         struct lpfc_dmabuf *dmabuf, *next;
11427         uint32_t offset = 0, temp_offset = 0;
11428         uint32_t magic_number, ftype, fid, fsize;
11429
11430         /* It can be null in no-wait mode, sanity check */
11431         if (!fw) {
11432                 rc = -ENXIO;
11433                 goto out;
11434         }
11435         image = (struct lpfc_grp_hdr *)fw->data;
11436
11437         magic_number = be32_to_cpu(image->magic_number);
11438         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
11439         fid = bf_get_be32(lpfc_grp_hdr_id, image);
11440         fsize = be32_to_cpu(image->size);
11441
11442         INIT_LIST_HEAD(&dma_buffer_list);
11443         lpfc_decode_firmware_rev(phba, fwrev, 1);
11444         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
11445                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11446                                 "3023 Updating Firmware, Current Version:%s "
11447                                 "New Version:%s\n",
11448                                 fwrev, image->revision);
11449                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
11450                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
11451                                          GFP_KERNEL);
11452                         if (!dmabuf) {
11453                                 rc = -ENOMEM;
11454                                 goto release_out;
11455                         }
11456                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11457                                                           SLI4_PAGE_SIZE,
11458                                                           &dmabuf->phys,
11459                                                           GFP_KERNEL);
11460                         if (!dmabuf->virt) {
11461                                 kfree(dmabuf);
11462                                 rc = -ENOMEM;
11463                                 goto release_out;
11464                         }
11465                         list_add_tail(&dmabuf->list, &dma_buffer_list);
11466                 }
11467                 while (offset < fw->size) {
11468                         temp_offset = offset;
11469                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
11470                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
11471                                         memcpy(dmabuf->virt,
11472                                                fw->data + temp_offset,
11473                                                fw->size - temp_offset);
11474                                         temp_offset = fw->size;
11475                                         break;
11476                                 }
11477                                 memcpy(dmabuf->virt, fw->data + temp_offset,
11478                                        SLI4_PAGE_SIZE);
11479                                 temp_offset += SLI4_PAGE_SIZE;
11480                         }
11481                         rc = lpfc_wr_object(phba, &dma_buffer_list,
11482                                     (fw->size - offset), &offset);
11483                         if (rc) {
11484                                 lpfc_log_write_firmware_error(phba, offset,
11485                                         magic_number, ftype, fid, fsize, fw);
11486                                 goto release_out;
11487                         }
11488                 }
11489                 rc = offset;
11490         } else
11491                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11492                                 "3029 Skipped Firmware update, Current "
11493                                 "Version:%s New Version:%s\n",
11494                                 fwrev, image->revision);
11495
11496 release_out:
11497         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
11498                 list_del(&dmabuf->list);
11499                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11500                                   dmabuf->virt, dmabuf->phys);
11501                 kfree(dmabuf);
11502         }
11503         release_firmware(fw);
11504 out:
11505         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11506                         "3024 Firmware update done: %d.\n", rc);
11507         return;
11508 }
11509
11510 /**
11511  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11512  * @phba: pointer to lpfc hba data structure.
11513  *
11514  * This routine is called to perform Linux generic firmware upgrade on device
11515  * that supports such feature.
11516  **/
11517 int
11518 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11519 {
11520         uint8_t file_name[ELX_MODEL_NAME_SIZE];
11521         int ret;
11522         const struct firmware *fw;
11523
11524         /* Only supported on SLI4 interface type 2 for now */
11525         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
11526             LPFC_SLI_INTF_IF_TYPE_2)
11527                 return -EPERM;
11528
11529         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
11530
11531         if (fw_upgrade == INT_FW_UPGRADE) {
11532                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11533                                         file_name, &phba->pcidev->dev,
11534                                         GFP_KERNEL, (void *)phba,
11535                                         lpfc_write_firmware);
11536         } else if (fw_upgrade == RUN_FW_UPGRADE) {
11537                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
11538                 if (!ret)
11539                         lpfc_write_firmware(fw, (void *)phba);
11540         } else {
11541                 ret = -EINVAL;
11542         }
11543
11544         return ret;
11545 }
11546
11547 /**
11548  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11549  * @pdev: pointer to PCI device
11550  * @pid: pointer to PCI device identifier
11551  *
11552  * This routine is called from the kernel's PCI subsystem to device with
11553  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11554  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11555  * information of the device and driver to see if the driver state that it
11556  * can support this kind of device. If the match is successful, the driver
11557  * core invokes this routine. If this routine determines it can claim the HBA,
11558  * it does all the initialization that it needs to do to handle the HBA
11559  * properly.
11560  *
11561  * Return code
11562  *      0 - driver can claim the device
11563  *      negative value - driver can not claim the device
11564  **/
11565 static int
11566 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11567 {
11568         struct lpfc_hba   *phba;
11569         struct lpfc_vport *vport = NULL;
11570         struct Scsi_Host  *shost = NULL;
11571         int error;
11572         uint32_t cfg_mode, intr_mode;
11573
11574         /* Allocate memory for HBA structure */
11575         phba = lpfc_hba_alloc(pdev);
11576         if (!phba)
11577                 return -ENOMEM;
11578
11579         /* Perform generic PCI device enabling operation */
11580         error = lpfc_enable_pci_dev(phba);
11581         if (error)
11582                 goto out_free_phba;
11583
11584         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
11585         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11586         if (error)
11587                 goto out_disable_pci_dev;
11588
11589         /* Set up SLI-4 specific device PCI memory space */
11590         error = lpfc_sli4_pci_mem_setup(phba);
11591         if (error) {
11592                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11593                                 "1410 Failed to set up pci memory space.\n");
11594                 goto out_disable_pci_dev;
11595         }
11596
11597         /* Set up SLI-4 Specific device driver resources */
11598         error = lpfc_sli4_driver_resource_setup(phba);
11599         if (error) {
11600                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11601                                 "1412 Failed to set up driver resource.\n");
11602                 goto out_unset_pci_mem_s4;
11603         }
11604
11605         INIT_LIST_HEAD(&phba->active_rrq_list);
11606         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11607
11608         /* Set up common device driver resources */
11609         error = lpfc_setup_driver_resource_phase2(phba);
11610         if (error) {
11611                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11612                                 "1414 Failed to set up driver resource.\n");
11613                 goto out_unset_driver_resource_s4;
11614         }
11615
11616         /* Get the default values for Model Name and Description */
11617         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11618
11619         /* Create SCSI host to the physical port */
11620         error = lpfc_create_shost(phba);
11621         if (error) {
11622                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11623                                 "1415 Failed to create scsi host.\n");
11624                 goto out_unset_driver_resource;
11625         }
11626
11627         /* Configure sysfs attributes */
11628         vport = phba->pport;
11629         error = lpfc_alloc_sysfs_attr(vport);
11630         if (error) {
11631                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11632                                 "1416 Failed to allocate sysfs attr\n");
11633                 goto out_destroy_shost;
11634         }
11635
11636         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11637         /* Now, trying to enable interrupt and bring up the device */
11638         cfg_mode = phba->cfg_use_msi;
11639
11640         /* Put device to a known state before enabling interrupt */
11641         lpfc_stop_port(phba);
11642
11643         /* Configure and enable interrupt */
11644         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11645         if (intr_mode == LPFC_INTR_ERROR) {
11646                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11647                                 "0426 Failed to enable interrupt.\n");
11648                 error = -ENODEV;
11649                 goto out_free_sysfs_attr;
11650         }
11651         /* Default to single EQ for non-MSI-X */
11652         if (phba->intr_type != MSIX) {
11653                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11654                         phba->cfg_fcp_io_channel = 1;
11655                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11656                         phba->cfg_nvme_io_channel = 1;
11657                         if (phba->nvmet_support)
11658                                 phba->cfg_nvmet_mrq = 1;
11659                 }
11660                 phba->io_channel_irqs = 1;
11661         }
11662
11663         /* Set up SLI-4 HBA */
11664         if (lpfc_sli4_hba_setup(phba)) {
11665                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11666                                 "1421 Failed to set up hba\n");
11667                 error = -ENODEV;
11668                 goto out_disable_intr;
11669         }
11670
11671         /* Log the current active interrupt mode */
11672         phba->intr_mode = intr_mode;
11673         lpfc_log_intr_mode(phba, intr_mode);
11674
11675         /* Perform post initialization setup */
11676         lpfc_post_init_setup(phba);
11677
11678         /* NVME support in FW earlier in the driver load corrects the
11679          * FC4 type making a check for nvme_support unnecessary.
11680          */
11681         if ((phba->nvmet_support == 0) &&
11682             (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11683                 /* Create NVME binding with nvme_fc_transport. This
11684                  * ensures the vport is initialized.  If the localport
11685                  * create fails, it should not unload the driver to
11686                  * support field issues.
11687                  */
11688                 error = lpfc_nvme_create_localport(vport);
11689                 if (error) {
11690                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11691                                         "6004 NVME registration failed, "
11692                                         "error x%x\n",
11693                                         error);
11694                 }
11695         }
11696
11697         /* check for firmware upgrade or downgrade */
11698         if (phba->cfg_request_firmware_upgrade)
11699                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11700
11701         /* Check if there are static vports to be created. */
11702         lpfc_create_static_vport(phba);
11703         return 0;
11704
11705 out_disable_intr:
11706         lpfc_sli4_disable_intr(phba);
11707 out_free_sysfs_attr:
11708         lpfc_free_sysfs_attr(vport);
11709 out_destroy_shost:
11710         lpfc_destroy_shost(phba);
11711 out_unset_driver_resource:
11712         lpfc_unset_driver_resource_phase2(phba);
11713 out_unset_driver_resource_s4:
11714         lpfc_sli4_driver_resource_unset(phba);
11715 out_unset_pci_mem_s4:
11716         lpfc_sli4_pci_mem_unset(phba);
11717 out_disable_pci_dev:
11718         lpfc_disable_pci_dev(phba);
11719         if (shost)
11720                 scsi_host_put(shost);
11721 out_free_phba:
11722         lpfc_hba_free(phba);
11723         return error;
11724 }
11725
11726 /**
11727  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11728  * @pdev: pointer to PCI device
11729  *
11730  * This routine is called from the kernel's PCI subsystem to device with
11731  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11732  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11733  * device to be removed from the PCI subsystem properly.
11734  **/
11735 static void
11736 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11737 {
11738         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11739         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11740         struct lpfc_vport **vports;
11741         struct lpfc_hba *phba = vport->phba;
11742         int i;
11743
11744         /* Mark the device unloading flag */
11745         spin_lock_irq(&phba->hbalock);
11746         vport->load_flag |= FC_UNLOADING;
11747         spin_unlock_irq(&phba->hbalock);
11748
11749         /* Free the HBA sysfs attributes */
11750         lpfc_free_sysfs_attr(vport);
11751
11752         /* Release all the vports against this physical port */
11753         vports = lpfc_create_vport_work_array(phba);
11754         if (vports != NULL)
11755                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11756                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11757                                 continue;
11758                         fc_vport_terminate(vports[i]->fc_vport);
11759                 }
11760         lpfc_destroy_vport_work_array(phba, vports);
11761
11762         /* Remove FC host and then SCSI host with the physical port */
11763         fc_remove_host(shost);
11764         scsi_remove_host(shost);
11765
11766         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
11767          * localports are destroyed after to cleanup all transport memory.
11768          */
11769         lpfc_cleanup(vport);
11770         lpfc_nvmet_destroy_targetport(phba);
11771         lpfc_nvme_destroy_localport(vport);
11772
11773         /*
11774          * Bring down the SLI Layer. This step disables all interrupts,
11775          * clears the rings, discards all mailbox commands, and resets
11776          * the HBA FCoE function.
11777          */
11778         lpfc_debugfs_terminate(vport);
11779         lpfc_sli4_hba_unset(phba);
11780
11781         lpfc_stop_hba_timers(phba);
11782         spin_lock_irq(&phba->hbalock);
11783         list_del_init(&vport->listentry);
11784         spin_unlock_irq(&phba->hbalock);
11785
11786         /* Perform scsi free before driver resource_unset since scsi
11787          * buffers are released to their corresponding pools here.
11788          */
11789         lpfc_scsi_free(phba);
11790         lpfc_nvme_free(phba);
11791         lpfc_free_iocb_list(phba);
11792
11793         lpfc_unset_driver_resource_phase2(phba);
11794         lpfc_sli4_driver_resource_unset(phba);
11795
11796         /* Unmap adapter Control and Doorbell registers */
11797         lpfc_sli4_pci_mem_unset(phba);
11798
11799         /* Release PCI resources and disable device's PCI function */
11800         scsi_host_put(shost);
11801         lpfc_disable_pci_dev(phba);
11802
11803         /* Finally, free the driver's device data structure */
11804         lpfc_hba_free(phba);
11805
11806         return;
11807 }
11808
11809 /**
11810  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
11811  * @pdev: pointer to PCI device
11812  * @msg: power management message
11813  *
11814  * This routine is called from the kernel's PCI subsystem to support system
11815  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
11816  * this method, it quiesces the device by stopping the driver's worker
11817  * thread for the device, turning off device's interrupt and DMA, and bring
11818  * the device offline. Note that as the driver implements the minimum PM
11819  * requirements to a power-aware driver's PM support for suspend/resume -- all
11820  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
11821  * method call will be treated as SUSPEND and the driver will fully
11822  * reinitialize its device during resume() method call, the driver will set
11823  * device to PCI_D3hot state in PCI config space instead of setting it
11824  * according to the @msg provided by the PM.
11825  *
11826  * Return code
11827  *      0 - driver suspended the device
11828  *      Error otherwise
11829  **/
11830 static int
11831 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
11832 {
11833         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11834         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11835
11836         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11837                         "2843 PCI device Power Management suspend.\n");
11838
11839         /* Bring down the device */
11840         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11841         lpfc_offline(phba);
11842         kthread_stop(phba->worker_thread);
11843
11844         /* Disable interrupt from device */
11845         lpfc_sli4_disable_intr(phba);
11846         lpfc_sli4_queue_destroy(phba);
11847
11848         /* Save device state to PCI config space */
11849         pci_save_state(pdev);
11850         pci_set_power_state(pdev, PCI_D3hot);
11851
11852         return 0;
11853 }
11854
11855 /**
11856  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
11857  * @pdev: pointer to PCI device
11858  *
11859  * This routine is called from the kernel's PCI subsystem to support system
11860  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
11861  * this method, it restores the device's PCI config space state and fully
11862  * reinitializes the device and brings it online. Note that as the driver
11863  * implements the minimum PM requirements to a power-aware driver's PM for
11864  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11865  * to the suspend() method call will be treated as SUSPEND and the driver
11866  * will fully reinitialize its device during resume() method call, the device
11867  * will be set to PCI_D0 directly in PCI config space before restoring the
11868  * state.
11869  *
11870  * Return code
11871  *      0 - driver suspended the device
11872  *      Error otherwise
11873  **/
11874 static int
11875 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
11876 {
11877         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11878         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11879         uint32_t intr_mode;
11880         int error;
11881
11882         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11883                         "0292 PCI device Power Management resume.\n");
11884
11885         /* Restore device state from PCI config space */
11886         pci_set_power_state(pdev, PCI_D0);
11887         pci_restore_state(pdev);
11888
11889         /*
11890          * As the new kernel behavior of pci_restore_state() API call clears
11891          * device saved_state flag, need to save the restored state again.
11892          */
11893         pci_save_state(pdev);
11894
11895         if (pdev->is_busmaster)
11896                 pci_set_master(pdev);
11897
11898          /* Startup the kernel thread for this host adapter. */
11899         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11900                                         "lpfc_worker_%d", phba->brd_no);
11901         if (IS_ERR(phba->worker_thread)) {
11902                 error = PTR_ERR(phba->worker_thread);
11903                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11904                                 "0293 PM resume failed to start worker "
11905                                 "thread: error=x%x.\n", error);
11906                 return error;
11907         }
11908
11909         /* Configure and enable interrupt */
11910         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11911         if (intr_mode == LPFC_INTR_ERROR) {
11912                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11913                                 "0294 PM resume Failed to enable interrupt\n");
11914                 return -EIO;
11915         } else
11916                 phba->intr_mode = intr_mode;
11917
11918         /* Restart HBA and bring it online */
11919         lpfc_sli_brdrestart(phba);
11920         lpfc_online(phba);
11921
11922         /* Log the current active interrupt mode */
11923         lpfc_log_intr_mode(phba, phba->intr_mode);
11924
11925         return 0;
11926 }
11927
11928 /**
11929  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
11930  * @phba: pointer to lpfc hba data structure.
11931  *
11932  * This routine is called to prepare the SLI4 device for PCI slot recover. It
11933  * aborts all the outstanding SCSI I/Os to the pci device.
11934  **/
11935 static void
11936 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
11937 {
11938         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11939                         "2828 PCI channel I/O abort preparing for recovery\n");
11940         /*
11941          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11942          * and let the SCSI mid-layer to retry them to recover.
11943          */
11944         lpfc_sli_abort_fcp_rings(phba);
11945 }
11946
11947 /**
11948  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
11949  * @phba: pointer to lpfc hba data structure.
11950  *
11951  * This routine is called to prepare the SLI4 device for PCI slot reset. It
11952  * disables the device interrupt and pci device, and aborts the internal FCP
11953  * pending I/Os.
11954  **/
11955 static void
11956 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
11957 {
11958         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11959                         "2826 PCI channel disable preparing for reset\n");
11960
11961         /* Block any management I/Os to the device */
11962         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
11963
11964         /* Block all SCSI devices' I/Os on the host */
11965         lpfc_scsi_dev_block(phba);
11966
11967         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11968         lpfc_sli_flush_fcp_rings(phba);
11969
11970         /* Flush the outstanding NVME IOs if fc4 type enabled. */
11971         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11972                 lpfc_sli_flush_nvme_rings(phba);
11973
11974         /* stop all timers */
11975         lpfc_stop_hba_timers(phba);
11976
11977         /* Disable interrupt and pci device */
11978         lpfc_sli4_disable_intr(phba);
11979         lpfc_sli4_queue_destroy(phba);
11980         pci_disable_device(phba->pcidev);
11981 }
11982
11983 /**
11984  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
11985  * @phba: pointer to lpfc hba data structure.
11986  *
11987  * This routine is called to prepare the SLI4 device for PCI slot permanently
11988  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11989  * pending I/Os.
11990  **/
11991 static void
11992 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11993 {
11994         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11995                         "2827 PCI channel permanent disable for failure\n");
11996
11997         /* Block all SCSI devices' I/Os on the host */
11998         lpfc_scsi_dev_block(phba);
11999
12000         /* stop all timers */
12001         lpfc_stop_hba_timers(phba);
12002
12003         /* Clean up all driver's outstanding SCSI I/Os */
12004         lpfc_sli_flush_fcp_rings(phba);
12005
12006         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12007         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12008                 lpfc_sli_flush_nvme_rings(phba);
12009 }
12010
12011 /**
12012  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
12013  * @pdev: pointer to PCI device.
12014  * @state: the current PCI connection state.
12015  *
12016  * This routine is called from the PCI subsystem for error handling to device
12017  * with SLI-4 interface spec. This function is called by the PCI subsystem
12018  * after a PCI bus error affecting this device has been detected. When this
12019  * function is invoked, it will need to stop all the I/Os and interrupt(s)
12020  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
12021  * for the PCI subsystem to perform proper recovery as desired.
12022  *
12023  * Return codes
12024  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12025  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12026  **/
12027 static pci_ers_result_t
12028 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
12029 {
12030         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12031         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12032
12033         switch (state) {
12034         case pci_channel_io_normal:
12035                 /* Non-fatal error, prepare for recovery */
12036                 lpfc_sli4_prep_dev_for_recover(phba);
12037                 return PCI_ERS_RESULT_CAN_RECOVER;
12038         case pci_channel_io_frozen:
12039                 /* Fatal error, prepare for slot reset */
12040                 lpfc_sli4_prep_dev_for_reset(phba);
12041                 return PCI_ERS_RESULT_NEED_RESET;
12042         case pci_channel_io_perm_failure:
12043                 /* Permanent failure, prepare for device down */
12044                 lpfc_sli4_prep_dev_for_perm_failure(phba);
12045                 return PCI_ERS_RESULT_DISCONNECT;
12046         default:
12047                 /* Unknown state, prepare and request slot reset */
12048                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12049                                 "2825 Unknown PCI error state: x%x\n", state);
12050                 lpfc_sli4_prep_dev_for_reset(phba);
12051                 return PCI_ERS_RESULT_NEED_RESET;
12052         }
12053 }
12054
12055 /**
12056  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
12057  * @pdev: pointer to PCI device.
12058  *
12059  * This routine is called from the PCI subsystem for error handling to device
12060  * with SLI-4 interface spec. It is called after PCI bus has been reset to
12061  * restart the PCI card from scratch, as if from a cold-boot. During the
12062  * PCI subsystem error recovery, after the driver returns
12063  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12064  * recovery and then call this routine before calling the .resume method to
12065  * recover the device. This function will initialize the HBA device, enable
12066  * the interrupt, but it will just put the HBA to offline state without
12067  * passing any I/O traffic.
12068  *
12069  * Return codes
12070  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12071  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12072  */
12073 static pci_ers_result_t
12074 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
12075 {
12076         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12077         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12078         struct lpfc_sli *psli = &phba->sli;
12079         uint32_t intr_mode;
12080
12081         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12082         if (pci_enable_device_mem(pdev)) {
12083                 printk(KERN_ERR "lpfc: Cannot re-enable "
12084                         "PCI device after reset.\n");
12085                 return PCI_ERS_RESULT_DISCONNECT;
12086         }
12087
12088         pci_restore_state(pdev);
12089
12090         /*
12091          * As the new kernel behavior of pci_restore_state() API call clears
12092          * device saved_state flag, need to save the restored state again.
12093          */
12094         pci_save_state(pdev);
12095
12096         if (pdev->is_busmaster)
12097                 pci_set_master(pdev);
12098
12099         spin_lock_irq(&phba->hbalock);
12100         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12101         spin_unlock_irq(&phba->hbalock);
12102
12103         /* Configure and enable interrupt */
12104         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12105         if (intr_mode == LPFC_INTR_ERROR) {
12106                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12107                                 "2824 Cannot re-enable interrupt after "
12108                                 "slot reset.\n");
12109                 return PCI_ERS_RESULT_DISCONNECT;
12110         } else
12111                 phba->intr_mode = intr_mode;
12112
12113         /* Log the current active interrupt mode */
12114         lpfc_log_intr_mode(phba, phba->intr_mode);
12115
12116         return PCI_ERS_RESULT_RECOVERED;
12117 }
12118
12119 /**
12120  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
12121  * @pdev: pointer to PCI device
12122  *
12123  * This routine is called from the PCI subsystem for error handling to device
12124  * with SLI-4 interface spec. It is called when kernel error recovery tells
12125  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12126  * error recovery. After this call, traffic can start to flow from this device
12127  * again.
12128  **/
12129 static void
12130 lpfc_io_resume_s4(struct pci_dev *pdev)
12131 {
12132         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12133         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12134
12135         /*
12136          * In case of slot reset, as function reset is performed through
12137          * mailbox command which needs DMA to be enabled, this operation
12138          * has to be moved to the io resume phase. Taking device offline
12139          * will perform the necessary cleanup.
12140          */
12141         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
12142                 /* Perform device reset */
12143                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12144                 lpfc_offline(phba);
12145                 lpfc_sli_brdrestart(phba);
12146                 /* Bring the device back online */
12147                 lpfc_online(phba);
12148         }
12149
12150         /* Clean up Advanced Error Reporting (AER) if needed */
12151         if (phba->hba_flag & HBA_AER_ENABLED)
12152                 pci_cleanup_aer_uncorrect_error_status(pdev);
12153 }
12154
12155 /**
12156  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
12157  * @pdev: pointer to PCI device
12158  * @pid: pointer to PCI device identifier
12159  *
12160  * This routine is to be registered to the kernel's PCI subsystem. When an
12161  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
12162  * at PCI device-specific information of the device and driver to see if the
12163  * driver state that it can support this kind of device. If the match is
12164  * successful, the driver core invokes this routine. This routine dispatches
12165  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
12166  * do all the initialization that it needs to do to handle the HBA device
12167  * properly.
12168  *
12169  * Return code
12170  *      0 - driver can claim the device
12171  *      negative value - driver can not claim the device
12172  **/
12173 static int
12174 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
12175 {
12176         int rc;
12177         struct lpfc_sli_intf intf;
12178
12179         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
12180                 return -ENODEV;
12181
12182         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
12183             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
12184                 rc = lpfc_pci_probe_one_s4(pdev, pid);
12185         else
12186                 rc = lpfc_pci_probe_one_s3(pdev, pid);
12187
12188         return rc;
12189 }
12190
12191 /**
12192  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
12193  * @pdev: pointer to PCI device
12194  *
12195  * This routine is to be registered to the kernel's PCI subsystem. When an
12196  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
12197  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
12198  * remove routine, which will perform all the necessary cleanup for the
12199  * device to be removed from the PCI subsystem properly.
12200  **/
12201 static void
12202 lpfc_pci_remove_one(struct pci_dev *pdev)
12203 {
12204         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12205         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12206
12207         switch (phba->pci_dev_grp) {
12208         case LPFC_PCI_DEV_LP:
12209                 lpfc_pci_remove_one_s3(pdev);
12210                 break;
12211         case LPFC_PCI_DEV_OC:
12212                 lpfc_pci_remove_one_s4(pdev);
12213                 break;
12214         default:
12215                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12216                                 "1424 Invalid PCI device group: 0x%x\n",
12217                                 phba->pci_dev_grp);
12218                 break;
12219         }
12220         return;
12221 }
12222
12223 /**
12224  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
12225  * @pdev: pointer to PCI device
12226  * @msg: power management message
12227  *
12228  * This routine is to be registered to the kernel's PCI subsystem to support
12229  * system Power Management (PM). When PM invokes this method, it dispatches
12230  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
12231  * suspend the device.
12232  *
12233  * Return code
12234  *      0 - driver suspended the device
12235  *      Error otherwise
12236  **/
12237 static int
12238 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
12239 {
12240         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12241         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12242         int rc = -ENODEV;
12243
12244         switch (phba->pci_dev_grp) {
12245         case LPFC_PCI_DEV_LP:
12246                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
12247                 break;
12248         case LPFC_PCI_DEV_OC:
12249                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
12250                 break;
12251         default:
12252                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12253                                 "1425 Invalid PCI device group: 0x%x\n",
12254                                 phba->pci_dev_grp);
12255                 break;
12256         }
12257         return rc;
12258 }
12259
12260 /**
12261  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
12262  * @pdev: pointer to PCI device
12263  *
12264  * This routine is to be registered to the kernel's PCI subsystem to support
12265  * system Power Management (PM). When PM invokes this method, it dispatches
12266  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
12267  * resume the device.
12268  *
12269  * Return code
12270  *      0 - driver suspended the device
12271  *      Error otherwise
12272  **/
12273 static int
12274 lpfc_pci_resume_one(struct pci_dev *pdev)
12275 {
12276         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12277         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12278         int rc = -ENODEV;
12279
12280         switch (phba->pci_dev_grp) {
12281         case LPFC_PCI_DEV_LP:
12282                 rc = lpfc_pci_resume_one_s3(pdev);
12283                 break;
12284         case LPFC_PCI_DEV_OC:
12285                 rc = lpfc_pci_resume_one_s4(pdev);
12286                 break;
12287         default:
12288                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12289                                 "1426 Invalid PCI device group: 0x%x\n",
12290                                 phba->pci_dev_grp);
12291                 break;
12292         }
12293         return rc;
12294 }
12295
12296 /**
12297  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
12298  * @pdev: pointer to PCI device.
12299  * @state: the current PCI connection state.
12300  *
12301  * This routine is registered to the PCI subsystem for error handling. This
12302  * function is called by the PCI subsystem after a PCI bus error affecting
12303  * this device has been detected. When this routine is invoked, it dispatches
12304  * the action to the proper SLI-3 or SLI-4 device error detected handling
12305  * routine, which will perform the proper error detected operation.
12306  *
12307  * Return codes
12308  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12309  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12310  **/
12311 static pci_ers_result_t
12312 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
12313 {
12314         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12315         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12316         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12317
12318         switch (phba->pci_dev_grp) {
12319         case LPFC_PCI_DEV_LP:
12320                 rc = lpfc_io_error_detected_s3(pdev, state);
12321                 break;
12322         case LPFC_PCI_DEV_OC:
12323                 rc = lpfc_io_error_detected_s4(pdev, state);
12324                 break;
12325         default:
12326                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12327                                 "1427 Invalid PCI device group: 0x%x\n",
12328                                 phba->pci_dev_grp);
12329                 break;
12330         }
12331         return rc;
12332 }
12333
12334 /**
12335  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
12336  * @pdev: pointer to PCI device.
12337  *
12338  * This routine is registered to the PCI subsystem for error handling. This
12339  * function is called after PCI bus has been reset to restart the PCI card
12340  * from scratch, as if from a cold-boot. When this routine is invoked, it
12341  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
12342  * routine, which will perform the proper device reset.
12343  *
12344  * Return codes
12345  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12346  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12347  **/
12348 static pci_ers_result_t
12349 lpfc_io_slot_reset(struct pci_dev *pdev)
12350 {
12351         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12352         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12353         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12354
12355         switch (phba->pci_dev_grp) {
12356         case LPFC_PCI_DEV_LP:
12357                 rc = lpfc_io_slot_reset_s3(pdev);
12358                 break;
12359         case LPFC_PCI_DEV_OC:
12360                 rc = lpfc_io_slot_reset_s4(pdev);
12361                 break;
12362         default:
12363                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12364                                 "1428 Invalid PCI device group: 0x%x\n",
12365                                 phba->pci_dev_grp);
12366                 break;
12367         }
12368         return rc;
12369 }
12370
12371 /**
12372  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
12373  * @pdev: pointer to PCI device
12374  *
12375  * This routine is registered to the PCI subsystem for error handling. It
12376  * is called when kernel error recovery tells the lpfc driver that it is
12377  * OK to resume normal PCI operation after PCI bus error recovery. When
12378  * this routine is invoked, it dispatches the action to the proper SLI-3
12379  * or SLI-4 device io_resume routine, which will resume the device operation.
12380  **/
12381 static void
12382 lpfc_io_resume(struct pci_dev *pdev)
12383 {
12384         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12385         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12386
12387         switch (phba->pci_dev_grp) {
12388         case LPFC_PCI_DEV_LP:
12389                 lpfc_io_resume_s3(pdev);
12390                 break;
12391         case LPFC_PCI_DEV_OC:
12392                 lpfc_io_resume_s4(pdev);
12393                 break;
12394         default:
12395                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12396                                 "1429 Invalid PCI device group: 0x%x\n",
12397                                 phba->pci_dev_grp);
12398                 break;
12399         }
12400         return;
12401 }
12402
12403 /**
12404  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
12405  * @phba: pointer to lpfc hba data structure.
12406  *
12407  * This routine checks to see if OAS is supported for this adapter. If
12408  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
12409  * the enable oas flag is cleared and the pool created for OAS device data
12410  * is destroyed.
12411  *
12412  **/
12413 void
12414 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
12415 {
12416
12417         if (!phba->cfg_EnableXLane)
12418                 return;
12419
12420         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
12421                 phba->cfg_fof = 1;
12422         } else {
12423                 phba->cfg_fof = 0;
12424                 if (phba->device_data_mem_pool)
12425                         mempool_destroy(phba->device_data_mem_pool);
12426                 phba->device_data_mem_pool = NULL;
12427         }
12428
12429         return;
12430 }
12431
12432 /**
12433  * lpfc_fof_queue_setup - Set up all the fof queues
12434  * @phba: pointer to lpfc hba data structure.
12435  *
12436  * This routine is invoked to set up all the fof queues for the FC HBA
12437  * operation.
12438  *
12439  * Return codes
12440  *      0 - successful
12441  *      -ENOMEM - No available memory
12442  **/
12443 int
12444 lpfc_fof_queue_setup(struct lpfc_hba *phba)
12445 {
12446         struct lpfc_sli_ring *pring;
12447         int rc;
12448
12449         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
12450         if (rc)
12451                 return -ENOMEM;
12452
12453         if (phba->cfg_fof) {
12454
12455                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
12456                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
12457                 if (rc)
12458                         goto out_oas_cq;
12459
12460                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
12461                                     phba->sli4_hba.oas_cq, LPFC_FCP);
12462                 if (rc)
12463                         goto out_oas_wq;
12464
12465                 /* Bind this CQ/WQ to the NVME ring */
12466                 pring = phba->sli4_hba.oas_wq->pring;
12467                 pring->sli.sli4.wqp =
12468                         (void *)phba->sli4_hba.oas_wq;
12469                 phba->sli4_hba.oas_cq->pring = pring;
12470         }
12471
12472         return 0;
12473
12474 out_oas_wq:
12475         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
12476 out_oas_cq:
12477         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
12478         return rc;
12479
12480 }
12481
12482 /**
12483  * lpfc_fof_queue_create - Create all the fof queues
12484  * @phba: pointer to lpfc hba data structure.
12485  *
12486  * This routine is invoked to allocate all the fof queues for the FC HBA
12487  * operation. For each SLI4 queue type, the parameters such as queue entry
12488  * count (queue depth) shall be taken from the module parameter. For now,
12489  * we just use some constant number as place holder.
12490  *
12491  * Return codes
12492  *      0 - successful
12493  *      -ENOMEM - No availble memory
12494  *      -EIO - The mailbox failed to complete successfully.
12495  **/
12496 int
12497 lpfc_fof_queue_create(struct lpfc_hba *phba)
12498 {
12499         struct lpfc_queue *qdesc;
12500         uint32_t wqesize;
12501
12502         /* Create FOF EQ */
12503         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
12504                                       phba->sli4_hba.eq_esize,
12505                                       phba->sli4_hba.eq_ecount);
12506         if (!qdesc)
12507                 goto out_error;
12508
12509         qdesc->qe_valid = 1;
12510         phba->sli4_hba.fof_eq = qdesc;
12511
12512         if (phba->cfg_fof) {
12513
12514                 /* Create OAS CQ */
12515                 if (phba->enab_exp_wqcq_pages)
12516                         qdesc = lpfc_sli4_queue_alloc(phba,
12517                                                       LPFC_EXPANDED_PAGE_SIZE,
12518                                                       phba->sli4_hba.cq_esize,
12519                                                       LPFC_CQE_EXP_COUNT);
12520                 else
12521                         qdesc = lpfc_sli4_queue_alloc(phba,
12522                                                       LPFC_DEFAULT_PAGE_SIZE,
12523                                                       phba->sli4_hba.cq_esize,
12524                                                       phba->sli4_hba.cq_ecount);
12525                 if (!qdesc)
12526                         goto out_error;
12527
12528                 qdesc->qe_valid = 1;
12529                 phba->sli4_hba.oas_cq = qdesc;
12530
12531                 /* Create OAS WQ */
12532                 if (phba->enab_exp_wqcq_pages) {
12533                         wqesize = (phba->fcp_embed_io) ?
12534                                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12535                         qdesc = lpfc_sli4_queue_alloc(phba,
12536                                                       LPFC_EXPANDED_PAGE_SIZE,
12537                                                       wqesize,
12538                                                       LPFC_WQE_EXP_COUNT);
12539                 } else
12540                         qdesc = lpfc_sli4_queue_alloc(phba,
12541                                                       LPFC_DEFAULT_PAGE_SIZE,
12542                                                       phba->sli4_hba.wq_esize,
12543                                                       phba->sli4_hba.wq_ecount);
12544
12545                 if (!qdesc)
12546                         goto out_error;
12547
12548                 phba->sli4_hba.oas_wq = qdesc;
12549                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12550
12551         }
12552         return 0;
12553
12554 out_error:
12555         lpfc_fof_queue_destroy(phba);
12556         return -ENOMEM;
12557 }
12558
12559 /**
12560  * lpfc_fof_queue_destroy - Destroy all the fof queues
12561  * @phba: pointer to lpfc hba data structure.
12562  *
12563  * This routine is invoked to release all the SLI4 queues with the FC HBA
12564  * operation.
12565  *
12566  * Return codes
12567  *      0 - successful
12568  **/
12569 int
12570 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12571 {
12572         /* Release FOF Event queue */
12573         if (phba->sli4_hba.fof_eq != NULL) {
12574                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12575                 phba->sli4_hba.fof_eq = NULL;
12576         }
12577
12578         /* Release OAS Completion queue */
12579         if (phba->sli4_hba.oas_cq != NULL) {
12580                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12581                 phba->sli4_hba.oas_cq = NULL;
12582         }
12583
12584         /* Release OAS Work queue */
12585         if (phba->sli4_hba.oas_wq != NULL) {
12586                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12587                 phba->sli4_hba.oas_wq = NULL;
12588         }
12589         return 0;
12590 }
12591
12592 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12593
12594 static const struct pci_error_handlers lpfc_err_handler = {
12595         .error_detected = lpfc_io_error_detected,
12596         .slot_reset = lpfc_io_slot_reset,
12597         .resume = lpfc_io_resume,
12598 };
12599
12600 static struct pci_driver lpfc_driver = {
12601         .name           = LPFC_DRIVER_NAME,
12602         .id_table       = lpfc_id_table,
12603         .probe          = lpfc_pci_probe_one,
12604         .remove         = lpfc_pci_remove_one,
12605         .shutdown       = lpfc_pci_remove_one,
12606         .suspend        = lpfc_pci_suspend_one,
12607         .resume         = lpfc_pci_resume_one,
12608         .err_handler    = &lpfc_err_handler,
12609 };
12610
12611 static const struct file_operations lpfc_mgmt_fop = {
12612         .owner = THIS_MODULE,
12613 };
12614
12615 static struct miscdevice lpfc_mgmt_dev = {
12616         .minor = MISC_DYNAMIC_MINOR,
12617         .name = "lpfcmgmt",
12618         .fops = &lpfc_mgmt_fop,
12619 };
12620
12621 /**
12622  * lpfc_init - lpfc module initialization routine
12623  *
12624  * This routine is to be invoked when the lpfc module is loaded into the
12625  * kernel. The special kernel macro module_init() is used to indicate the
12626  * role of this routine to the kernel as lpfc module entry point.
12627  *
12628  * Return codes
12629  *   0 - successful
12630  *   -ENOMEM - FC attach transport failed
12631  *   all others - failed
12632  */
12633 static int __init
12634 lpfc_init(void)
12635 {
12636         int error = 0;
12637
12638         printk(LPFC_MODULE_DESC "\n");
12639         printk(LPFC_COPYRIGHT "\n");
12640
12641         error = misc_register(&lpfc_mgmt_dev);
12642         if (error)
12643                 printk(KERN_ERR "Could not register lpfcmgmt device, "
12644                         "misc_register returned with status %d", error);
12645
12646         lpfc_transport_functions.vport_create = lpfc_vport_create;
12647         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12648         lpfc_transport_template =
12649                                 fc_attach_transport(&lpfc_transport_functions);
12650         if (lpfc_transport_template == NULL)
12651                 return -ENOMEM;
12652         lpfc_vport_transport_template =
12653                 fc_attach_transport(&lpfc_vport_transport_functions);
12654         if (lpfc_vport_transport_template == NULL) {
12655                 fc_release_transport(lpfc_transport_template);
12656                 return -ENOMEM;
12657         }
12658         lpfc_nvme_cmd_template();
12659         lpfc_nvmet_cmd_template();
12660
12661         /* Initialize in case vector mapping is needed */
12662         lpfc_used_cpu = NULL;
12663         lpfc_present_cpu = num_present_cpus();
12664
12665         error = pci_register_driver(&lpfc_driver);
12666         if (error) {
12667                 fc_release_transport(lpfc_transport_template);
12668                 fc_release_transport(lpfc_vport_transport_template);
12669         }
12670
12671         return error;
12672 }
12673
12674 /**
12675  * lpfc_exit - lpfc module removal routine
12676  *
12677  * This routine is invoked when the lpfc module is removed from the kernel.
12678  * The special kernel macro module_exit() is used to indicate the role of
12679  * this routine to the kernel as lpfc module exit point.
12680  */
12681 static void __exit
12682 lpfc_exit(void)
12683 {
12684         misc_deregister(&lpfc_mgmt_dev);
12685         pci_unregister_driver(&lpfc_driver);
12686         fc_release_transport(lpfc_transport_template);
12687         fc_release_transport(lpfc_vport_transport_template);
12688         if (_dump_buf_data) {
12689                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
12690                                 "_dump_buf_data at 0x%p\n",
12691                                 (1L << _dump_buf_data_order), _dump_buf_data);
12692                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12693         }
12694
12695         if (_dump_buf_dif) {
12696                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
12697                                 "_dump_buf_dif at 0x%p\n",
12698                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
12699                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12700         }
12701         kfree(lpfc_used_cpu);
12702         idr_destroy(&lpfc_hba_index);
12703 }
12704
12705 module_init(lpfc_init);
12706 module_exit(lpfc_exit);
12707 MODULE_LICENSE("GPL");
12708 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12709 MODULE_AUTHOR("Broadcom");
12710 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);