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_scsi_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->port_list_lock);
3992         list_add_tail(&vport->listentry, &phba->port_list);
3993         spin_unlock_irq(&phba->port_list_lock);
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->port_list_lock);
4020         list_del_init(&vport->listentry);
4021         spin_unlock_irq(&phba->port_list_lock);
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         /* Initialize port_list spinlock */
5625         spin_lock_init(&phba->port_list_lock);
5626         INIT_LIST_HEAD(&phba->port_list);
5627
5628         INIT_LIST_HEAD(&phba->work_list);
5629         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5630
5631         /* Initialize the wait queue head for the kernel thread */
5632         init_waitqueue_head(&phba->work_waitq);
5633
5634         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5635                         "1403 Protocols supported %s %s %s\n",
5636                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5637                                 "SCSI" : " "),
5638                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5639                                 "NVME" : " "),
5640                         (phba->nvmet_support ? "NVMET" : " "));
5641
5642         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5643                 /* Initialize the scsi buffer list used by driver for scsi IO */
5644                 spin_lock_init(&phba->scsi_buf_list_get_lock);
5645                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5646                 spin_lock_init(&phba->scsi_buf_list_put_lock);
5647                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5648         }
5649
5650         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5651                 (phba->nvmet_support == 0)) {
5652                 /* Initialize the NVME buffer list used by driver for NVME IO */
5653                 spin_lock_init(&phba->nvme_buf_list_get_lock);
5654                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5655                 phba->get_nvme_bufs = 0;
5656                 spin_lock_init(&phba->nvme_buf_list_put_lock);
5657                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5658                 phba->put_nvme_bufs = 0;
5659         }
5660
5661         /* Initialize the fabric iocb list */
5662         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5663
5664         /* Initialize list to save ELS buffers */
5665         INIT_LIST_HEAD(&phba->elsbuf);
5666
5667         /* Initialize FCF connection rec list */
5668         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5669
5670         /* Initialize OAS configuration list */
5671         spin_lock_init(&phba->devicelock);
5672         INIT_LIST_HEAD(&phba->luns);
5673
5674         /* MBOX heartbeat timer */
5675         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
5676         /* Fabric block timer */
5677         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
5678         /* EA polling mode timer */
5679         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
5680         /* Heartbeat timer */
5681         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
5682
5683         return 0;
5684 }
5685
5686 /**
5687  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5688  * @phba: pointer to lpfc hba data structure.
5689  *
5690  * This routine is invoked to set up the driver internal resources specific to
5691  * support the SLI-3 HBA device it attached to.
5692  *
5693  * Return codes
5694  * 0 - successful
5695  * other values - error
5696  **/
5697 static int
5698 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5699 {
5700         int rc;
5701
5702         /*
5703          * Initialize timers used by driver
5704          */
5705
5706         /* FCP polling mode timer */
5707         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
5708
5709         /* Host attention work mask setup */
5710         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5711         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5712
5713         /* Get all the module params for configuring this host */
5714         lpfc_get_cfgparam(phba);
5715         /* Set up phase-1 common device driver resources */
5716
5717         rc = lpfc_setup_driver_resource_phase1(phba);
5718         if (rc)
5719                 return -ENODEV;
5720
5721         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5722                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5723                 /* check for menlo minimum sg count */
5724                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5725                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5726         }
5727
5728         if (!phba->sli.sli3_ring)
5729                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
5730                                               sizeof(struct lpfc_sli_ring),
5731                                               GFP_KERNEL);
5732         if (!phba->sli.sli3_ring)
5733                 return -ENOMEM;
5734
5735         /*
5736          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5737          * used to create the sg_dma_buf_pool must be dynamically calculated.
5738          */
5739
5740         /* Initialize the host templates the configured values. */
5741         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5742         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5743         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5744
5745         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5746         if (phba->cfg_enable_bg) {
5747                 /*
5748                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5749                  * the FCP rsp, and a BDE for each. Sice we have no control
5750                  * over how many protection data segments the SCSI Layer
5751                  * will hand us (ie: there could be one for every block
5752                  * in the IO), we just allocate enough BDEs to accomidate
5753                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5754                  * minimize the risk of running out.
5755                  */
5756                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5757                         sizeof(struct fcp_rsp) +
5758                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5759
5760                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5761                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5762
5763                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5764                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5765         } else {
5766                 /*
5767                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5768                  * the FCP rsp, a BDE for each, and a BDE for up to
5769                  * cfg_sg_seg_cnt data segments.
5770                  */
5771                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5772                         sizeof(struct fcp_rsp) +
5773                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5774
5775                 /* Total BDEs in BPL for scsi_sg_list */
5776                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5777         }
5778
5779         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5780                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5781                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5782                         phba->cfg_total_seg_cnt);
5783
5784         phba->max_vpi = LPFC_MAX_VPI;
5785         /* This will be set to correct value after config_port mbox */
5786         phba->max_vports = 0;
5787
5788         /*
5789          * Initialize the SLI Layer to run with lpfc HBAs.
5790          */
5791         lpfc_sli_setup(phba);
5792         lpfc_sli_queue_init(phba);
5793
5794         /* Allocate device driver memory */
5795         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5796                 return -ENOMEM;
5797
5798         /*
5799          * Enable sr-iov virtual functions if supported and configured
5800          * through the module parameter.
5801          */
5802         if (phba->cfg_sriov_nr_virtfn > 0) {
5803                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5804                                                  phba->cfg_sriov_nr_virtfn);
5805                 if (rc) {
5806                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5807                                         "2808 Requested number of SR-IOV "
5808                                         "virtual functions (%d) is not "
5809                                         "supported\n",
5810                                         phba->cfg_sriov_nr_virtfn);
5811                         phba->cfg_sriov_nr_virtfn = 0;
5812                 }
5813         }
5814
5815         return 0;
5816 }
5817
5818 /**
5819  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5820  * @phba: pointer to lpfc hba data structure.
5821  *
5822  * This routine is invoked to unset the driver internal resources set up
5823  * specific for supporting the SLI-3 HBA device it attached to.
5824  **/
5825 static void
5826 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5827 {
5828         /* Free device driver memory allocated */
5829         lpfc_mem_free_all(phba);
5830
5831         return;
5832 }
5833
5834 /**
5835  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5836  * @phba: pointer to lpfc hba data structure.
5837  *
5838  * This routine is invoked to set up the driver internal resources specific to
5839  * support the SLI-4 HBA device it attached to.
5840  *
5841  * Return codes
5842  *      0 - successful
5843  *      other values - error
5844  **/
5845 static int
5846 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5847 {
5848         LPFC_MBOXQ_t *mboxq;
5849         MAILBOX_t *mb;
5850         int rc, i, max_buf_size;
5851         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5852         struct lpfc_mqe *mqe;
5853         int longs;
5854         int fof_vectors = 0;
5855         int extra;
5856         uint64_t wwn;
5857         u32 if_type;
5858         u32 if_fam;
5859
5860         phba->sli4_hba.num_online_cpu = num_online_cpus();
5861         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
5862         phba->sli4_hba.curr_disp_cpu = 0;
5863
5864         /* Get all the module params for configuring this host */
5865         lpfc_get_cfgparam(phba);
5866
5867         /* Set up phase-1 common device driver resources */
5868         rc = lpfc_setup_driver_resource_phase1(phba);
5869         if (rc)
5870                 return -ENODEV;
5871
5872         /* Before proceed, wait for POST done and device ready */
5873         rc = lpfc_sli4_post_status_check(phba);
5874         if (rc)
5875                 return -ENODEV;
5876
5877         /*
5878          * Initialize timers used by driver
5879          */
5880
5881         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
5882
5883         /* FCF rediscover timer */
5884         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
5885
5886         /*
5887          * Control structure for handling external multi-buffer mailbox
5888          * command pass-through.
5889          */
5890         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5891                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5892         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5893
5894         phba->max_vpi = LPFC_MAX_VPI;
5895
5896         /* This will be set to correct value after the read_config mbox */
5897         phba->max_vports = 0;
5898
5899         /* Program the default value of vlan_id and fc_map */
5900         phba->valid_vlan = 0;
5901         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5902         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5903         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5904
5905         /*
5906          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5907          * we will associate a new ring, for each EQ/CQ/WQ tuple.
5908          * The WQ create will allocate the ring.
5909          */
5910
5911         /*
5912          * 1 for cmd, 1 for rsp, NVME adds an extra one
5913          * for boundary conditions in its max_sgl_segment template.
5914          */
5915         extra = 2;
5916         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
5917                 extra++;
5918
5919         /*
5920          * It doesn't matter what family our adapter is in, we are
5921          * limited to 2 Pages, 512 SGEs, for our SGL.
5922          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5923          */
5924         max_buf_size = (2 * SLI4_PAGE_SIZE);
5925
5926         /*
5927          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
5928          * used to create the sg_dma_buf_pool must be calculated.
5929          */
5930         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
5931                 /*
5932                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
5933                  * the FCP rsp, and a SGE. Sice we have no control
5934                  * over how many protection segments the SCSI Layer
5935                  * will hand us (ie: there could be one for every block
5936                  * in the IO), just allocate enough SGEs to accomidate
5937                  * our max amount and we need to limit lpfc_sg_seg_cnt
5938                  * to minimize the risk of running out.
5939                  */
5940                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5941                                 sizeof(struct fcp_rsp) + max_buf_size;
5942
5943                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5944                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5945
5946                 /*
5947                  * If supporting DIF, reduce the seg count for scsi to
5948                  * allow room for the DIF sges.
5949                  */
5950                 if (phba->cfg_enable_bg &&
5951                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
5952                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
5953                 else
5954                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
5955
5956         } else {
5957                 /*
5958                  * The scsi_buf for a regular I/O holds the FCP cmnd,
5959                  * the FCP rsp, a SGE for each, and a SGE for up to
5960                  * cfg_sg_seg_cnt data segments.
5961                  */
5962                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5963                                 sizeof(struct fcp_rsp) +
5964                                 ((phba->cfg_sg_seg_cnt + extra) *
5965                                 sizeof(struct sli4_sge));
5966
5967                 /* Total SGEs for scsi_sg_list */
5968                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
5969                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
5970
5971                 /*
5972                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
5973                  * need to post 1 page for the SGL.
5974                  */
5975         }
5976
5977         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
5978         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
5979                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
5980                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
5981                                         "6300 Reducing NVME sg segment "
5982                                         "cnt to %d\n",
5983                                         LPFC_MAX_NVME_SEG_CNT);
5984                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
5985                 } else
5986                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
5987         }
5988
5989         /* Initialize the host templates with the updated values. */
5990         lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
5991         lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
5992         lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
5993
5994         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5995                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5996         else
5997                 phba->cfg_sg_dma_buf_size =
5998                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5999
6000         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6001                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
6002                         "total:%d scsi:%d nvme:%d\n",
6003                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6004                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6005                         phba->cfg_nvme_seg_cnt);
6006
6007         /* Initialize buffer queue management fields */
6008         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6009         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6010         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6011
6012         /*
6013          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6014          */
6015         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
6016                 /* Initialize the Abort scsi buffer list used by driver */
6017                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
6018                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
6019         }
6020
6021         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6022                 /* Initialize the Abort nvme buffer list used by driver */
6023                 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
6024                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
6025                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6026                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6027         }
6028
6029         /* This abort list used by worker thread */
6030         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6031         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6032
6033         /*
6034          * Initialize driver internal slow-path work queues
6035          */
6036
6037         /* Driver internel slow-path CQ Event pool */
6038         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6039         /* Response IOCB work queue list */
6040         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6041         /* Asynchronous event CQ Event work queue list */
6042         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6043         /* Fast-path XRI aborted CQ Event work queue list */
6044         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6045         /* Slow-path XRI aborted CQ Event work queue list */
6046         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6047         /* Receive queue CQ Event work queue list */
6048         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6049
6050         /* Initialize extent block lists. */
6051         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6052         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6053         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6054         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6055
6056         /* Initialize mboxq lists. If the early init routines fail
6057          * these lists need to be correctly initialized.
6058          */
6059         INIT_LIST_HEAD(&phba->sli.mboxq);
6060         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6061
6062         /* initialize optic_state to 0xFF */
6063         phba->sli4_hba.lnk_info.optic_state = 0xff;
6064
6065         /* Allocate device driver memory */
6066         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6067         if (rc)
6068                 return -ENOMEM;
6069
6070         /* IF Type 2 ports get initialized now. */
6071         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6072             LPFC_SLI_INTF_IF_TYPE_2) {
6073                 rc = lpfc_pci_function_reset(phba);
6074                 if (unlikely(rc)) {
6075                         rc = -ENODEV;
6076                         goto out_free_mem;
6077                 }
6078                 phba->temp_sensor_support = 1;
6079         }
6080
6081         /* Create the bootstrap mailbox command */
6082         rc = lpfc_create_bootstrap_mbox(phba);
6083         if (unlikely(rc))
6084                 goto out_free_mem;
6085
6086         /* Set up the host's endian order with the device. */
6087         rc = lpfc_setup_endian_order(phba);
6088         if (unlikely(rc))
6089                 goto out_free_bsmbx;
6090
6091         /* Set up the hba's configuration parameters. */
6092         rc = lpfc_sli4_read_config(phba);
6093         if (unlikely(rc))
6094                 goto out_free_bsmbx;
6095         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6096         if (unlikely(rc))
6097                 goto out_free_bsmbx;
6098
6099         /* IF Type 0 ports get initialized now. */
6100         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6101             LPFC_SLI_INTF_IF_TYPE_0) {
6102                 rc = lpfc_pci_function_reset(phba);
6103                 if (unlikely(rc))
6104                         goto out_free_bsmbx;
6105         }
6106
6107         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6108                                                        GFP_KERNEL);
6109         if (!mboxq) {
6110                 rc = -ENOMEM;
6111                 goto out_free_bsmbx;
6112         }
6113
6114         /* Check for NVMET being configured */
6115         phba->nvmet_support = 0;
6116         if (lpfc_enable_nvmet_cnt) {
6117
6118                 /* First get WWN of HBA instance */
6119                 lpfc_read_nv(phba, mboxq);
6120                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6121                 if (rc != MBX_SUCCESS) {
6122                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6123                                         "6016 Mailbox failed , mbxCmd x%x "
6124                                         "READ_NV, mbxStatus x%x\n",
6125                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6126                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6127                         mempool_free(mboxq, phba->mbox_mem_pool);
6128                         rc = -EIO;
6129                         goto out_free_bsmbx;
6130                 }
6131                 mb = &mboxq->u.mb;
6132                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6133                        sizeof(uint64_t));
6134                 wwn = cpu_to_be64(wwn);
6135                 phba->sli4_hba.wwnn.u.name = wwn;
6136                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6137                        sizeof(uint64_t));
6138                 /* wwn is WWPN of HBA instance */
6139                 wwn = cpu_to_be64(wwn);
6140                 phba->sli4_hba.wwpn.u.name = wwn;
6141
6142                 /* Check to see if it matches any module parameter */
6143                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6144                         if (wwn == lpfc_enable_nvmet[i]) {
6145 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6146                                 if (lpfc_nvmet_mem_alloc(phba))
6147                                         break;
6148
6149                                 phba->nvmet_support = 1; /* a match */
6150
6151                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6152                                                 "6017 NVME Target %016llx\n",
6153                                                 wwn);
6154 #else
6155                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6156                                                 "6021 Can't enable NVME Target."
6157                                                 " NVME_TARGET_FC infrastructure"
6158                                                 " is not in kernel\n");
6159 #endif
6160                                 break;
6161                         }
6162                 }
6163         }
6164
6165         lpfc_nvme_mod_param_dep(phba);
6166
6167         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6168         lpfc_supported_pages(mboxq);
6169         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6170         if (!rc) {
6171                 mqe = &mboxq->u.mqe;
6172                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6173                        LPFC_MAX_SUPPORTED_PAGES);
6174                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6175                         switch (pn_page[i]) {
6176                         case LPFC_SLI4_PARAMETERS:
6177                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6178                                 break;
6179                         default:
6180                                 break;
6181                         }
6182                 }
6183                 /* Read the port's SLI4 Parameters capabilities if supported. */
6184                 if (phba->sli4_hba.pc_sli4_params.supported)
6185                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6186                 if (rc) {
6187                         mempool_free(mboxq, phba->mbox_mem_pool);
6188                         rc = -EIO;
6189                         goto out_free_bsmbx;
6190                 }
6191         }
6192
6193         /*
6194          * Get sli4 parameters that override parameters from Port capabilities.
6195          * If this call fails, it isn't critical unless the SLI4 parameters come
6196          * back in conflict.
6197          */
6198         rc = lpfc_get_sli4_parameters(phba, mboxq);
6199         if (rc) {
6200                 if_type = bf_get(lpfc_sli_intf_if_type,
6201                                  &phba->sli4_hba.sli_intf);
6202                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6203                                 &phba->sli4_hba.sli_intf);
6204                 if (phba->sli4_hba.extents_in_use &&
6205                     phba->sli4_hba.rpi_hdrs_in_use) {
6206                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6207                                 "2999 Unsupported SLI4 Parameters "
6208                                 "Extents and RPI headers enabled.\n");
6209                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6210                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6211                                 mempool_free(mboxq, phba->mbox_mem_pool);
6212                                 rc = -EIO;
6213                                 goto out_free_bsmbx;
6214                         }
6215                 }
6216                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6217                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6218                         mempool_free(mboxq, phba->mbox_mem_pool);
6219                         rc = -EIO;
6220                         goto out_free_bsmbx;
6221                 }
6222         }
6223
6224         mempool_free(mboxq, phba->mbox_mem_pool);
6225
6226         /* Verify OAS is supported */
6227         lpfc_sli4_oas_verify(phba);
6228         if (phba->cfg_fof)
6229                 fof_vectors = 1;
6230
6231         /* Verify RAS support on adapter */
6232         lpfc_sli4_ras_init(phba);
6233
6234         /* Verify all the SLI4 queues */
6235         rc = lpfc_sli4_queue_verify(phba);
6236         if (rc)
6237                 goto out_free_bsmbx;
6238
6239         /* Create driver internal CQE event pool */
6240         rc = lpfc_sli4_cq_event_pool_create(phba);
6241         if (rc)
6242                 goto out_free_bsmbx;
6243
6244         /* Initialize sgl lists per host */
6245         lpfc_init_sgl_list(phba);
6246
6247         /* Allocate and initialize active sgl array */
6248         rc = lpfc_init_active_sgl_array(phba);
6249         if (rc) {
6250                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6251                                 "1430 Failed to initialize sgl list.\n");
6252                 goto out_destroy_cq_event_pool;
6253         }
6254         rc = lpfc_sli4_init_rpi_hdrs(phba);
6255         if (rc) {
6256                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6257                                 "1432 Failed to initialize rpi headers.\n");
6258                 goto out_free_active_sgl;
6259         }
6260
6261         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6262         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6263         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6264                                          GFP_KERNEL);
6265         if (!phba->fcf.fcf_rr_bmask) {
6266                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6267                                 "2759 Failed allocate memory for FCF round "
6268                                 "robin failover bmask\n");
6269                 rc = -ENOMEM;
6270                 goto out_remove_rpi_hdrs;
6271         }
6272
6273         phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6274                                                 sizeof(struct lpfc_hba_eq_hdl),
6275                                                 GFP_KERNEL);
6276         if (!phba->sli4_hba.hba_eq_hdl) {
6277                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6278                                 "2572 Failed allocate memory for "
6279                                 "fast-path per-EQ handle array\n");
6280                 rc = -ENOMEM;
6281                 goto out_free_fcf_rr_bmask;
6282         }
6283
6284         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6285                                         sizeof(struct lpfc_vector_map_info),
6286                                         GFP_KERNEL);
6287         if (!phba->sli4_hba.cpu_map) {
6288                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6289                                 "3327 Failed allocate memory for msi-x "
6290                                 "interrupt vector mapping\n");
6291                 rc = -ENOMEM;
6292                 goto out_free_hba_eq_hdl;
6293         }
6294         if (lpfc_used_cpu == NULL) {
6295                 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6296                                                 GFP_KERNEL);
6297                 if (!lpfc_used_cpu) {
6298                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6299                                         "3335 Failed allocate memory for msi-x "
6300                                         "interrupt vector mapping\n");
6301                         kfree(phba->sli4_hba.cpu_map);
6302                         rc = -ENOMEM;
6303                         goto out_free_hba_eq_hdl;
6304                 }
6305                 for (i = 0; i < lpfc_present_cpu; i++)
6306                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6307         }
6308
6309         /*
6310          * Enable sr-iov virtual functions if supported and configured
6311          * through the module parameter.
6312          */
6313         if (phba->cfg_sriov_nr_virtfn > 0) {
6314                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6315                                                  phba->cfg_sriov_nr_virtfn);
6316                 if (rc) {
6317                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6318                                         "3020 Requested number of SR-IOV "
6319                                         "virtual functions (%d) is not "
6320                                         "supported\n",
6321                                         phba->cfg_sriov_nr_virtfn);
6322                         phba->cfg_sriov_nr_virtfn = 0;
6323                 }
6324         }
6325
6326         return 0;
6327
6328 out_free_hba_eq_hdl:
6329         kfree(phba->sli4_hba.hba_eq_hdl);
6330 out_free_fcf_rr_bmask:
6331         kfree(phba->fcf.fcf_rr_bmask);
6332 out_remove_rpi_hdrs:
6333         lpfc_sli4_remove_rpi_hdrs(phba);
6334 out_free_active_sgl:
6335         lpfc_free_active_sgl(phba);
6336 out_destroy_cq_event_pool:
6337         lpfc_sli4_cq_event_pool_destroy(phba);
6338 out_free_bsmbx:
6339         lpfc_destroy_bootstrap_mbox(phba);
6340 out_free_mem:
6341         lpfc_mem_free(phba);
6342         return rc;
6343 }
6344
6345 /**
6346  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6347  * @phba: pointer to lpfc hba data structure.
6348  *
6349  * This routine is invoked to unset the driver internal resources set up
6350  * specific for supporting the SLI-4 HBA device it attached to.
6351  **/
6352 static void
6353 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6354 {
6355         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6356
6357         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6358         kfree(phba->sli4_hba.cpu_map);
6359         phba->sli4_hba.num_present_cpu = 0;
6360         phba->sli4_hba.num_online_cpu = 0;
6361         phba->sli4_hba.curr_disp_cpu = 0;
6362
6363         /* Free memory allocated for fast-path work queue handles */
6364         kfree(phba->sli4_hba.hba_eq_hdl);
6365
6366         /* Free the allocated rpi headers. */
6367         lpfc_sli4_remove_rpi_hdrs(phba);
6368         lpfc_sli4_remove_rpis(phba);
6369
6370         /* Free eligible FCF index bmask */
6371         kfree(phba->fcf.fcf_rr_bmask);
6372
6373         /* Free the ELS sgl list */
6374         lpfc_free_active_sgl(phba);
6375         lpfc_free_els_sgl_list(phba);
6376         lpfc_free_nvmet_sgl_list(phba);
6377
6378         /* Free the completion queue EQ event pool */
6379         lpfc_sli4_cq_event_release_all(phba);
6380         lpfc_sli4_cq_event_pool_destroy(phba);
6381
6382         /* Release resource identifiers. */
6383         lpfc_sli4_dealloc_resource_identifiers(phba);
6384
6385         /* Free the bsmbx region. */
6386         lpfc_destroy_bootstrap_mbox(phba);
6387
6388         /* Free the SLI Layer memory with SLI4 HBAs */
6389         lpfc_mem_free_all(phba);
6390
6391         /* Free the current connect table */
6392         list_for_each_entry_safe(conn_entry, next_conn_entry,
6393                 &phba->fcf_conn_rec_list, list) {
6394                 list_del_init(&conn_entry->list);
6395                 kfree(conn_entry);
6396         }
6397
6398         return;
6399 }
6400
6401 /**
6402  * lpfc_init_api_table_setup - Set up init api function jump table
6403  * @phba: The hba struct for which this call is being executed.
6404  * @dev_grp: The HBA PCI-Device group number.
6405  *
6406  * This routine sets up the device INIT interface API function jump table
6407  * in @phba struct.
6408  *
6409  * Returns: 0 - success, -ENODEV - failure.
6410  **/
6411 int
6412 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6413 {
6414         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6415         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6416         phba->lpfc_selective_reset = lpfc_selective_reset;
6417         switch (dev_grp) {
6418         case LPFC_PCI_DEV_LP:
6419                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6420                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6421                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6422                 break;
6423         case LPFC_PCI_DEV_OC:
6424                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6425                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6426                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6427                 break;
6428         default:
6429                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6430                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6431                                 dev_grp);
6432                 return -ENODEV;
6433                 break;
6434         }
6435         return 0;
6436 }
6437
6438 /**
6439  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6440  * @phba: pointer to lpfc hba data structure.
6441  *
6442  * This routine is invoked to set up the driver internal resources after the
6443  * device specific resource setup to support the HBA device it attached to.
6444  *
6445  * Return codes
6446  *      0 - successful
6447  *      other values - error
6448  **/
6449 static int
6450 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6451 {
6452         int error;
6453
6454         /* Startup the kernel thread for this host adapter. */
6455         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6456                                           "lpfc_worker_%d", phba->brd_no);
6457         if (IS_ERR(phba->worker_thread)) {
6458                 error = PTR_ERR(phba->worker_thread);
6459                 return error;
6460         }
6461
6462         /* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */
6463         if (phba->sli_rev == LPFC_SLI_REV4)
6464                 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6465         else
6466                 phba->wq = NULL;
6467
6468         return 0;
6469 }
6470
6471 /**
6472  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6473  * @phba: pointer to lpfc hba data structure.
6474  *
6475  * This routine is invoked to unset the driver internal resources set up after
6476  * the device specific resource setup for supporting the HBA device it
6477  * attached to.
6478  **/
6479 static void
6480 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6481 {
6482         if (phba->wq) {
6483                 flush_workqueue(phba->wq);
6484                 destroy_workqueue(phba->wq);
6485                 phba->wq = NULL;
6486         }
6487
6488         /* Stop kernel worker thread */
6489         if (phba->worker_thread)
6490                 kthread_stop(phba->worker_thread);
6491 }
6492
6493 /**
6494  * lpfc_free_iocb_list - Free iocb list.
6495  * @phba: pointer to lpfc hba data structure.
6496  *
6497  * This routine is invoked to free the driver's IOCB list and memory.
6498  **/
6499 void
6500 lpfc_free_iocb_list(struct lpfc_hba *phba)
6501 {
6502         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6503
6504         spin_lock_irq(&phba->hbalock);
6505         list_for_each_entry_safe(iocbq_entry, iocbq_next,
6506                                  &phba->lpfc_iocb_list, list) {
6507                 list_del(&iocbq_entry->list);
6508                 kfree(iocbq_entry);
6509                 phba->total_iocbq_bufs--;
6510         }
6511         spin_unlock_irq(&phba->hbalock);
6512
6513         return;
6514 }
6515
6516 /**
6517  * lpfc_init_iocb_list - Allocate and initialize iocb list.
6518  * @phba: pointer to lpfc hba data structure.
6519  *
6520  * This routine is invoked to allocate and initizlize the driver's IOCB
6521  * list and set up the IOCB tag array accordingly.
6522  *
6523  * Return codes
6524  *      0 - successful
6525  *      other values - error
6526  **/
6527 int
6528 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6529 {
6530         struct lpfc_iocbq *iocbq_entry = NULL;
6531         uint16_t iotag;
6532         int i;
6533
6534         /* Initialize and populate the iocb list per host.  */
6535         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6536         for (i = 0; i < iocb_count; i++) {
6537                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6538                 if (iocbq_entry == NULL) {
6539                         printk(KERN_ERR "%s: only allocated %d iocbs of "
6540                                 "expected %d count. Unloading driver.\n",
6541                                 __func__, i, LPFC_IOCB_LIST_CNT);
6542                         goto out_free_iocbq;
6543                 }
6544
6545                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6546                 if (iotag == 0) {
6547                         kfree(iocbq_entry);
6548                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
6549                                 "Unloading driver.\n", __func__);
6550                         goto out_free_iocbq;
6551                 }
6552                 iocbq_entry->sli4_lxritag = NO_XRI;
6553                 iocbq_entry->sli4_xritag = NO_XRI;
6554
6555                 spin_lock_irq(&phba->hbalock);
6556                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6557                 phba->total_iocbq_bufs++;
6558                 spin_unlock_irq(&phba->hbalock);
6559         }
6560
6561         return 0;
6562
6563 out_free_iocbq:
6564         lpfc_free_iocb_list(phba);
6565
6566         return -ENOMEM;
6567 }
6568
6569 /**
6570  * lpfc_free_sgl_list - Free a given sgl list.
6571  * @phba: pointer to lpfc hba data structure.
6572  * @sglq_list: pointer to the head of sgl list.
6573  *
6574  * This routine is invoked to free a give sgl list and memory.
6575  **/
6576 void
6577 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6578 {
6579         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6580
6581         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6582                 list_del(&sglq_entry->list);
6583                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6584                 kfree(sglq_entry);
6585         }
6586 }
6587
6588 /**
6589  * lpfc_free_els_sgl_list - Free els sgl list.
6590  * @phba: pointer to lpfc hba data structure.
6591  *
6592  * This routine is invoked to free the driver's els sgl list and memory.
6593  **/
6594 static void
6595 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6596 {
6597         LIST_HEAD(sglq_list);
6598
6599         /* Retrieve all els sgls from driver list */
6600         spin_lock_irq(&phba->hbalock);
6601         spin_lock(&phba->sli4_hba.sgl_list_lock);
6602         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6603         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6604         spin_unlock_irq(&phba->hbalock);
6605
6606         /* Now free the sgl list */
6607         lpfc_free_sgl_list(phba, &sglq_list);
6608 }
6609
6610 /**
6611  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6612  * @phba: pointer to lpfc hba data structure.
6613  *
6614  * This routine is invoked to free the driver's nvmet sgl list and memory.
6615  **/
6616 static void
6617 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6618 {
6619         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6620         LIST_HEAD(sglq_list);
6621
6622         /* Retrieve all nvmet sgls from driver list */
6623         spin_lock_irq(&phba->hbalock);
6624         spin_lock(&phba->sli4_hba.sgl_list_lock);
6625         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6626         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6627         spin_unlock_irq(&phba->hbalock);
6628
6629         /* Now free the sgl list */
6630         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6631                 list_del(&sglq_entry->list);
6632                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6633                 kfree(sglq_entry);
6634         }
6635
6636         /* Update the nvmet_xri_cnt to reflect no current sgls.
6637          * The next initialization cycle sets the count and allocates
6638          * the sgls over again.
6639          */
6640         phba->sli4_hba.nvmet_xri_cnt = 0;
6641 }
6642
6643 /**
6644  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6645  * @phba: pointer to lpfc hba data structure.
6646  *
6647  * This routine is invoked to allocate the driver's active sgl memory.
6648  * This array will hold the sglq_entry's for active IOs.
6649  **/
6650 static int
6651 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6652 {
6653         int size;
6654         size = sizeof(struct lpfc_sglq *);
6655         size *= phba->sli4_hba.max_cfg_param.max_xri;
6656
6657         phba->sli4_hba.lpfc_sglq_active_list =
6658                 kzalloc(size, GFP_KERNEL);
6659         if (!phba->sli4_hba.lpfc_sglq_active_list)
6660                 return -ENOMEM;
6661         return 0;
6662 }
6663
6664 /**
6665  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6666  * @phba: pointer to lpfc hba data structure.
6667  *
6668  * This routine is invoked to walk through the array of active sglq entries
6669  * and free all of the resources.
6670  * This is just a place holder for now.
6671  **/
6672 static void
6673 lpfc_free_active_sgl(struct lpfc_hba *phba)
6674 {
6675         kfree(phba->sli4_hba.lpfc_sglq_active_list);
6676 }
6677
6678 /**
6679  * lpfc_init_sgl_list - Allocate and initialize sgl list.
6680  * @phba: pointer to lpfc hba data structure.
6681  *
6682  * This routine is invoked to allocate and initizlize the driver's sgl
6683  * list and set up the sgl xritag tag array accordingly.
6684  *
6685  **/
6686 static void
6687 lpfc_init_sgl_list(struct lpfc_hba *phba)
6688 {
6689         /* Initialize and populate the sglq list per host/VF. */
6690         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6691         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6692         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6693         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6694
6695         /* els xri-sgl book keeping */
6696         phba->sli4_hba.els_xri_cnt = 0;
6697
6698         /* scsi xri-buffer book keeping */
6699         phba->sli4_hba.scsi_xri_cnt = 0;
6700
6701         /* nvme xri-buffer book keeping */
6702         phba->sli4_hba.nvme_xri_cnt = 0;
6703 }
6704
6705 /**
6706  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6707  * @phba: pointer to lpfc hba data structure.
6708  *
6709  * This routine is invoked to post rpi header templates to the
6710  * port for those SLI4 ports that do not support extents.  This routine
6711  * posts a PAGE_SIZE memory region to the port to hold up to
6712  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
6713  * and should be called only when interrupts are disabled.
6714  *
6715  * Return codes
6716  *      0 - successful
6717  *      -ERROR - otherwise.
6718  **/
6719 int
6720 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6721 {
6722         int rc = 0;
6723         struct lpfc_rpi_hdr *rpi_hdr;
6724
6725         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6726         if (!phba->sli4_hba.rpi_hdrs_in_use)
6727                 return rc;
6728         if (phba->sli4_hba.extents_in_use)
6729                 return -EIO;
6730
6731         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6732         if (!rpi_hdr) {
6733                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6734                                 "0391 Error during rpi post operation\n");
6735                 lpfc_sli4_remove_rpis(phba);
6736                 rc = -ENODEV;
6737         }
6738
6739         return rc;
6740 }
6741
6742 /**
6743  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6744  * @phba: pointer to lpfc hba data structure.
6745  *
6746  * This routine is invoked to allocate a single 4KB memory region to
6747  * support rpis and stores them in the phba.  This single region
6748  * provides support for up to 64 rpis.  The region is used globally
6749  * by the device.
6750  *
6751  * Returns:
6752  *   A valid rpi hdr on success.
6753  *   A NULL pointer on any failure.
6754  **/
6755 struct lpfc_rpi_hdr *
6756 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6757 {
6758         uint16_t rpi_limit, curr_rpi_range;
6759         struct lpfc_dmabuf *dmabuf;
6760         struct lpfc_rpi_hdr *rpi_hdr;
6761
6762         /*
6763          * If the SLI4 port supports extents, posting the rpi header isn't
6764          * required.  Set the expected maximum count and let the actual value
6765          * get set when extents are fully allocated.
6766          */
6767         if (!phba->sli4_hba.rpi_hdrs_in_use)
6768                 return NULL;
6769         if (phba->sli4_hba.extents_in_use)
6770                 return NULL;
6771
6772         /* The limit on the logical index is just the max_rpi count. */
6773         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
6774
6775         spin_lock_irq(&phba->hbalock);
6776         /*
6777          * Establish the starting RPI in this header block.  The starting
6778          * rpi is normalized to a zero base because the physical rpi is
6779          * port based.
6780          */
6781         curr_rpi_range = phba->sli4_hba.next_rpi;
6782         spin_unlock_irq(&phba->hbalock);
6783
6784         /* Reached full RPI range */
6785         if (curr_rpi_range == rpi_limit)
6786                 return NULL;
6787
6788         /*
6789          * First allocate the protocol header region for the port.  The
6790          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6791          */
6792         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6793         if (!dmabuf)
6794                 return NULL;
6795
6796         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6797                                            LPFC_HDR_TEMPLATE_SIZE,
6798                                            &dmabuf->phys, GFP_KERNEL);
6799         if (!dmabuf->virt) {
6800                 rpi_hdr = NULL;
6801                 goto err_free_dmabuf;
6802         }
6803
6804         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6805                 rpi_hdr = NULL;
6806                 goto err_free_coherent;
6807         }
6808
6809         /* Save the rpi header data for cleanup later. */
6810         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6811         if (!rpi_hdr)
6812                 goto err_free_coherent;
6813
6814         rpi_hdr->dmabuf = dmabuf;
6815         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6816         rpi_hdr->page_count = 1;
6817         spin_lock_irq(&phba->hbalock);
6818
6819         /* The rpi_hdr stores the logical index only. */
6820         rpi_hdr->start_rpi = curr_rpi_range;
6821         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
6822         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6823
6824         spin_unlock_irq(&phba->hbalock);
6825         return rpi_hdr;
6826
6827  err_free_coherent:
6828         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6829                           dmabuf->virt, dmabuf->phys);
6830  err_free_dmabuf:
6831         kfree(dmabuf);
6832         return NULL;
6833 }
6834
6835 /**
6836  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6837  * @phba: pointer to lpfc hba data structure.
6838  *
6839  * This routine is invoked to remove all memory resources allocated
6840  * to support rpis for SLI4 ports not supporting extents. This routine
6841  * presumes the caller has released all rpis consumed by fabric or port
6842  * logins and is prepared to have the header pages removed.
6843  **/
6844 void
6845 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6846 {
6847         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6848
6849         if (!phba->sli4_hba.rpi_hdrs_in_use)
6850                 goto exit;
6851
6852         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6853                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6854                 list_del(&rpi_hdr->list);
6855                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6856                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6857                 kfree(rpi_hdr->dmabuf);
6858                 kfree(rpi_hdr);
6859         }
6860  exit:
6861         /* There are no rpis available to the port now. */
6862         phba->sli4_hba.next_rpi = 0;
6863 }
6864
6865 /**
6866  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6867  * @pdev: pointer to pci device data structure.
6868  *
6869  * This routine is invoked to allocate the driver hba data structure for an
6870  * HBA device. If the allocation is successful, the phba reference to the
6871  * PCI device data structure is set.
6872  *
6873  * Return codes
6874  *      pointer to @phba - successful
6875  *      NULL - error
6876  **/
6877 static struct lpfc_hba *
6878 lpfc_hba_alloc(struct pci_dev *pdev)
6879 {
6880         struct lpfc_hba *phba;
6881
6882         /* Allocate memory for HBA structure */
6883         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6884         if (!phba) {
6885                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6886                 return NULL;
6887         }
6888
6889         /* Set reference to PCI device in HBA structure */
6890         phba->pcidev = pdev;
6891
6892         /* Assign an unused board number */
6893         phba->brd_no = lpfc_get_instance();
6894         if (phba->brd_no < 0) {
6895                 kfree(phba);
6896                 return NULL;
6897         }
6898         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6899
6900         spin_lock_init(&phba->ct_ev_lock);
6901         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6902
6903         return phba;
6904 }
6905
6906 /**
6907  * lpfc_hba_free - Free driver hba data structure with a device.
6908  * @phba: pointer to lpfc hba data structure.
6909  *
6910  * This routine is invoked to free the driver hba data structure with an
6911  * HBA device.
6912  **/
6913 static void
6914 lpfc_hba_free(struct lpfc_hba *phba)
6915 {
6916         /* Release the driver assigned board number */
6917         idr_remove(&lpfc_hba_index, phba->brd_no);
6918
6919         /* Free memory allocated with sli3 rings */
6920         kfree(phba->sli.sli3_ring);
6921         phba->sli.sli3_ring = NULL;
6922
6923         kfree(phba);
6924         return;
6925 }
6926
6927 /**
6928  * lpfc_create_shost - Create hba physical port with associated scsi host.
6929  * @phba: pointer to lpfc hba data structure.
6930  *
6931  * This routine is invoked to create HBA physical port and associate a SCSI
6932  * host with it.
6933  *
6934  * Return codes
6935  *      0 - successful
6936  *      other values - error
6937  **/
6938 static int
6939 lpfc_create_shost(struct lpfc_hba *phba)
6940 {
6941         struct lpfc_vport *vport;
6942         struct Scsi_Host  *shost;
6943
6944         /* Initialize HBA FC structure */
6945         phba->fc_edtov = FF_DEF_EDTOV;
6946         phba->fc_ratov = FF_DEF_RATOV;
6947         phba->fc_altov = FF_DEF_ALTOV;
6948         phba->fc_arbtov = FF_DEF_ARBTOV;
6949
6950         atomic_set(&phba->sdev_cnt, 0);
6951         atomic_set(&phba->fc4ScsiInputRequests, 0);
6952         atomic_set(&phba->fc4ScsiOutputRequests, 0);
6953         atomic_set(&phba->fc4ScsiControlRequests, 0);
6954         atomic_set(&phba->fc4ScsiIoCmpls, 0);
6955         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6956         if (!vport)
6957                 return -ENODEV;
6958
6959         shost = lpfc_shost_from_vport(vport);
6960         phba->pport = vport;
6961
6962         if (phba->nvmet_support) {
6963                 /* Only 1 vport (pport) will support NVME target */
6964                 if (phba->txrdy_payload_pool == NULL) {
6965                         phba->txrdy_payload_pool = dma_pool_create(
6966                                 "txrdy_pool", &phba->pcidev->dev,
6967                                 TXRDY_PAYLOAD_LEN, 16, 0);
6968                         if (phba->txrdy_payload_pool) {
6969                                 phba->targetport = NULL;
6970                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
6971                                 lpfc_printf_log(phba, KERN_INFO,
6972                                                 LOG_INIT | LOG_NVME_DISC,
6973                                                 "6076 NVME Target Found\n");
6974                         }
6975                 }
6976         }
6977
6978         lpfc_debugfs_initialize(vport);
6979         /* Put reference to SCSI host to driver's device private data */
6980         pci_set_drvdata(phba->pcidev, shost);
6981
6982         /*
6983          * At this point we are fully registered with PSA. In addition,
6984          * any initial discovery should be completed.
6985          */
6986         vport->load_flag |= FC_ALLOW_FDMI;
6987         if (phba->cfg_enable_SmartSAN ||
6988             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6989
6990                 /* Setup appropriate attribute masks */
6991                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6992                 if (phba->cfg_enable_SmartSAN)
6993                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6994                 else
6995                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6996         }
6997         return 0;
6998 }
6999
7000 /**
7001  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7002  * @phba: pointer to lpfc hba data structure.
7003  *
7004  * This routine is invoked to destroy HBA physical port and the associated
7005  * SCSI host.
7006  **/
7007 static void
7008 lpfc_destroy_shost(struct lpfc_hba *phba)
7009 {
7010         struct lpfc_vport *vport = phba->pport;
7011
7012         /* Destroy physical port that associated with the SCSI host */
7013         destroy_port(vport);
7014
7015         return;
7016 }
7017
7018 /**
7019  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7020  * @phba: pointer to lpfc hba data structure.
7021  * @shost: the shost to be used to detect Block guard settings.
7022  *
7023  * This routine sets up the local Block guard protocol settings for @shost.
7024  * This routine also allocates memory for debugging bg buffers.
7025  **/
7026 static void
7027 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7028 {
7029         uint32_t old_mask;
7030         uint32_t old_guard;
7031
7032         int pagecnt = 10;
7033         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7034                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7035                                 "1478 Registering BlockGuard with the "
7036                                 "SCSI layer\n");
7037
7038                 old_mask = phba->cfg_prot_mask;
7039                 old_guard = phba->cfg_prot_guard;
7040
7041                 /* Only allow supported values */
7042                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7043                         SHOST_DIX_TYPE0_PROTECTION |
7044                         SHOST_DIX_TYPE1_PROTECTION);
7045                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7046                                          SHOST_DIX_GUARD_CRC);
7047
7048                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7049                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7050                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7051
7052                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7053                         if ((old_mask != phba->cfg_prot_mask) ||
7054                                 (old_guard != phba->cfg_prot_guard))
7055                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7056                                         "1475 Registering BlockGuard with the "
7057                                         "SCSI layer: mask %d  guard %d\n",
7058                                         phba->cfg_prot_mask,
7059                                         phba->cfg_prot_guard);
7060
7061                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7062                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7063                 } else
7064                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7065                                 "1479 Not Registering BlockGuard with the SCSI "
7066                                 "layer, Bad protection parameters: %d %d\n",
7067                                 old_mask, old_guard);
7068         }
7069
7070         if (!_dump_buf_data) {
7071                 while (pagecnt) {
7072                         spin_lock_init(&_dump_buf_lock);
7073                         _dump_buf_data =
7074                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7075                         if (_dump_buf_data) {
7076                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7077                                         "9043 BLKGRD: allocated %d pages for "
7078                                        "_dump_buf_data at 0x%p\n",
7079                                        (1 << pagecnt), _dump_buf_data);
7080                                 _dump_buf_data_order = pagecnt;
7081                                 memset(_dump_buf_data, 0,
7082                                        ((1 << PAGE_SHIFT) << pagecnt));
7083                                 break;
7084                         } else
7085                                 --pagecnt;
7086                 }
7087                 if (!_dump_buf_data_order)
7088                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7089                                 "9044 BLKGRD: ERROR unable to allocate "
7090                                "memory for hexdump\n");
7091         } else
7092                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7093                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
7094                        "\n", _dump_buf_data);
7095         if (!_dump_buf_dif) {
7096                 while (pagecnt) {
7097                         _dump_buf_dif =
7098                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7099                         if (_dump_buf_dif) {
7100                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7101                                         "9046 BLKGRD: allocated %d pages for "
7102                                        "_dump_buf_dif at 0x%p\n",
7103                                        (1 << pagecnt), _dump_buf_dif);
7104                                 _dump_buf_dif_order = pagecnt;
7105                                 memset(_dump_buf_dif, 0,
7106                                        ((1 << PAGE_SHIFT) << pagecnt));
7107                                 break;
7108                         } else
7109                                 --pagecnt;
7110                 }
7111                 if (!_dump_buf_dif_order)
7112                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7113                         "9047 BLKGRD: ERROR unable to allocate "
7114                                "memory for hexdump\n");
7115         } else
7116                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7117                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7118                        _dump_buf_dif);
7119 }
7120
7121 /**
7122  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7123  * @phba: pointer to lpfc hba data structure.
7124  *
7125  * This routine is invoked to perform all the necessary post initialization
7126  * setup for the device.
7127  **/
7128 static void
7129 lpfc_post_init_setup(struct lpfc_hba *phba)
7130 {
7131         struct Scsi_Host  *shost;
7132         struct lpfc_adapter_event_header adapter_event;
7133
7134         /* Get the default values for Model Name and Description */
7135         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7136
7137         /*
7138          * hba setup may have changed the hba_queue_depth so we need to
7139          * adjust the value of can_queue.
7140          */
7141         shost = pci_get_drvdata(phba->pcidev);
7142         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7143         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
7144                 lpfc_setup_bg(phba, shost);
7145
7146         lpfc_host_attrib_init(shost);
7147
7148         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7149                 spin_lock_irq(shost->host_lock);
7150                 lpfc_poll_start_timer(phba);
7151                 spin_unlock_irq(shost->host_lock);
7152         }
7153
7154         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7155                         "0428 Perform SCSI scan\n");
7156         /* Send board arrival event to upper layer */
7157         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7158         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7159         fc_host_post_vendor_event(shost, fc_get_event_number(),
7160                                   sizeof(adapter_event),
7161                                   (char *) &adapter_event,
7162                                   LPFC_NL_VENDOR_ID);
7163         return;
7164 }
7165
7166 /**
7167  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7168  * @phba: pointer to lpfc hba data structure.
7169  *
7170  * This routine is invoked to set up the PCI device memory space for device
7171  * with SLI-3 interface spec.
7172  *
7173  * Return codes
7174  *      0 - successful
7175  *      other values - error
7176  **/
7177 static int
7178 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7179 {
7180         struct pci_dev *pdev;
7181         unsigned long bar0map_len, bar2map_len;
7182         int i, hbq_count;
7183         void *ptr;
7184         int error = -ENODEV;
7185
7186         /* Obtain PCI device reference */
7187         if (!phba->pcidev)
7188                 return error;
7189         else
7190                 pdev = phba->pcidev;
7191
7192         /* Set the device DMA mask size */
7193         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7194          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7195                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7196                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7197                         return error;
7198                 }
7199         }
7200
7201         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7202          * required by each mapping.
7203          */
7204         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7205         bar0map_len = pci_resource_len(pdev, 0);
7206
7207         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7208         bar2map_len = pci_resource_len(pdev, 2);
7209
7210         /* Map HBA SLIM to a kernel virtual address. */
7211         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7212         if (!phba->slim_memmap_p) {
7213                 dev_printk(KERN_ERR, &pdev->dev,
7214                            "ioremap failed for SLIM memory.\n");
7215                 goto out;
7216         }
7217
7218         /* Map HBA Control Registers to a kernel virtual address. */
7219         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7220         if (!phba->ctrl_regs_memmap_p) {
7221                 dev_printk(KERN_ERR, &pdev->dev,
7222                            "ioremap failed for HBA control registers.\n");
7223                 goto out_iounmap_slim;
7224         }
7225
7226         /* Allocate memory for SLI-2 structures */
7227         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7228                                                 &phba->slim2p.phys, GFP_KERNEL);
7229         if (!phba->slim2p.virt)
7230                 goto out_iounmap;
7231
7232         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7233         phba->mbox_ext = (phba->slim2p.virt +
7234                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7235         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7236         phba->IOCBs = (phba->slim2p.virt +
7237                        offsetof(struct lpfc_sli2_slim, IOCBs));
7238
7239         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7240                                                  lpfc_sli_hbq_size(),
7241                                                  &phba->hbqslimp.phys,
7242                                                  GFP_KERNEL);
7243         if (!phba->hbqslimp.virt)
7244                 goto out_free_slim;
7245
7246         hbq_count = lpfc_sli_hbq_count();
7247         ptr = phba->hbqslimp.virt;
7248         for (i = 0; i < hbq_count; ++i) {
7249                 phba->hbqs[i].hbq_virt = ptr;
7250                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7251                 ptr += (lpfc_hbq_defs[i]->entry_count *
7252                         sizeof(struct lpfc_hbq_entry));
7253         }
7254         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7255         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7256
7257         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7258
7259         phba->MBslimaddr = phba->slim_memmap_p;
7260         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7261         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7262         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7263         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7264
7265         return 0;
7266
7267 out_free_slim:
7268         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7269                           phba->slim2p.virt, phba->slim2p.phys);
7270 out_iounmap:
7271         iounmap(phba->ctrl_regs_memmap_p);
7272 out_iounmap_slim:
7273         iounmap(phba->slim_memmap_p);
7274 out:
7275         return error;
7276 }
7277
7278 /**
7279  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7280  * @phba: pointer to lpfc hba data structure.
7281  *
7282  * This routine is invoked to unset the PCI device memory space for device
7283  * with SLI-3 interface spec.
7284  **/
7285 static void
7286 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7287 {
7288         struct pci_dev *pdev;
7289
7290         /* Obtain PCI device reference */
7291         if (!phba->pcidev)
7292                 return;
7293         else
7294                 pdev = phba->pcidev;
7295
7296         /* Free coherent DMA memory allocated */
7297         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7298                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7299         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7300                           phba->slim2p.virt, phba->slim2p.phys);
7301
7302         /* I/O memory unmap */
7303         iounmap(phba->ctrl_regs_memmap_p);
7304         iounmap(phba->slim_memmap_p);
7305
7306         return;
7307 }
7308
7309 /**
7310  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7311  * @phba: pointer to lpfc hba data structure.
7312  *
7313  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7314  * done and check status.
7315  *
7316  * Return 0 if successful, otherwise -ENODEV.
7317  **/
7318 int
7319 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7320 {
7321         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7322         struct lpfc_register reg_data;
7323         int i, port_error = 0;
7324         uint32_t if_type;
7325
7326         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7327         memset(&reg_data, 0, sizeof(reg_data));
7328         if (!phba->sli4_hba.PSMPHRregaddr)
7329                 return -ENODEV;
7330
7331         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7332         for (i = 0; i < 3000; i++) {
7333                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7334                         &portsmphr_reg.word0) ||
7335                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7336                         /* Port has a fatal POST error, break out */
7337                         port_error = -ENODEV;
7338                         break;
7339                 }
7340                 if (LPFC_POST_STAGE_PORT_READY ==
7341                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7342                         break;
7343                 msleep(10);
7344         }
7345
7346         /*
7347          * If there was a port error during POST, then don't proceed with
7348          * other register reads as the data may not be valid.  Just exit.
7349          */
7350         if (port_error) {
7351                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7352                         "1408 Port Failed POST - portsmphr=0x%x, "
7353                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7354                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7355                         portsmphr_reg.word0,
7356                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7357                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7358                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7359                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7360                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7361                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7362                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7363                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7364         } else {
7365                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7366                                 "2534 Device Info: SLIFamily=0x%x, "
7367                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7368                                 "SLIHint_2=0x%x, FT=0x%x\n",
7369                                 bf_get(lpfc_sli_intf_sli_family,
7370                                        &phba->sli4_hba.sli_intf),
7371                                 bf_get(lpfc_sli_intf_slirev,
7372                                        &phba->sli4_hba.sli_intf),
7373                                 bf_get(lpfc_sli_intf_if_type,
7374                                        &phba->sli4_hba.sli_intf),
7375                                 bf_get(lpfc_sli_intf_sli_hint1,
7376                                        &phba->sli4_hba.sli_intf),
7377                                 bf_get(lpfc_sli_intf_sli_hint2,
7378                                        &phba->sli4_hba.sli_intf),
7379                                 bf_get(lpfc_sli_intf_func_type,
7380                                        &phba->sli4_hba.sli_intf));
7381                 /*
7382                  * Check for other Port errors during the initialization
7383                  * process.  Fail the load if the port did not come up
7384                  * correctly.
7385                  */
7386                 if_type = bf_get(lpfc_sli_intf_if_type,
7387                                  &phba->sli4_hba.sli_intf);
7388                 switch (if_type) {
7389                 case LPFC_SLI_INTF_IF_TYPE_0:
7390                         phba->sli4_hba.ue_mask_lo =
7391                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7392                         phba->sli4_hba.ue_mask_hi =
7393                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7394                         uerrlo_reg.word0 =
7395                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7396                         uerrhi_reg.word0 =
7397                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7398                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7399                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7400                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7401                                                 "1422 Unrecoverable Error "
7402                                                 "Detected during POST "
7403                                                 "uerr_lo_reg=0x%x, "
7404                                                 "uerr_hi_reg=0x%x, "
7405                                                 "ue_mask_lo_reg=0x%x, "
7406                                                 "ue_mask_hi_reg=0x%x\n",
7407                                                 uerrlo_reg.word0,
7408                                                 uerrhi_reg.word0,
7409                                                 phba->sli4_hba.ue_mask_lo,
7410                                                 phba->sli4_hba.ue_mask_hi);
7411                                 port_error = -ENODEV;
7412                         }
7413                         break;
7414                 case LPFC_SLI_INTF_IF_TYPE_2:
7415                 case LPFC_SLI_INTF_IF_TYPE_6:
7416                         /* Final checks.  The port status should be clean. */
7417                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7418                                 &reg_data.word0) ||
7419                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7420                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7421                                 phba->work_status[0] =
7422                                         readl(phba->sli4_hba.u.if_type2.
7423                                               ERR1regaddr);
7424                                 phba->work_status[1] =
7425                                         readl(phba->sli4_hba.u.if_type2.
7426                                               ERR2regaddr);
7427                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7428                                         "2888 Unrecoverable port error "
7429                                         "following POST: port status reg "
7430                                         "0x%x, port_smphr reg 0x%x, "
7431                                         "error 1=0x%x, error 2=0x%x\n",
7432                                         reg_data.word0,
7433                                         portsmphr_reg.word0,
7434                                         phba->work_status[0],
7435                                         phba->work_status[1]);
7436                                 port_error = -ENODEV;
7437                         }
7438                         break;
7439                 case LPFC_SLI_INTF_IF_TYPE_1:
7440                 default:
7441                         break;
7442                 }
7443         }
7444         return port_error;
7445 }
7446
7447 /**
7448  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7449  * @phba: pointer to lpfc hba data structure.
7450  * @if_type:  The SLI4 interface type getting configured.
7451  *
7452  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7453  * memory map.
7454  **/
7455 static void
7456 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7457 {
7458         switch (if_type) {
7459         case LPFC_SLI_INTF_IF_TYPE_0:
7460                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7461                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7462                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7463                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7464                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7465                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7466                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7467                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7468                 phba->sli4_hba.SLIINTFregaddr =
7469                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7470                 break;
7471         case LPFC_SLI_INTF_IF_TYPE_2:
7472                 phba->sli4_hba.u.if_type2.EQDregaddr =
7473                         phba->sli4_hba.conf_regs_memmap_p +
7474                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7475                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7476                         phba->sli4_hba.conf_regs_memmap_p +
7477                                                 LPFC_CTL_PORT_ER1_OFFSET;
7478                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7479                         phba->sli4_hba.conf_regs_memmap_p +
7480                                                 LPFC_CTL_PORT_ER2_OFFSET;
7481                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7482                         phba->sli4_hba.conf_regs_memmap_p +
7483                                                 LPFC_CTL_PORT_CTL_OFFSET;
7484                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7485                         phba->sli4_hba.conf_regs_memmap_p +
7486                                                 LPFC_CTL_PORT_STA_OFFSET;
7487                 phba->sli4_hba.SLIINTFregaddr =
7488                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7489                 phba->sli4_hba.PSMPHRregaddr =
7490                         phba->sli4_hba.conf_regs_memmap_p +
7491                                                 LPFC_CTL_PORT_SEM_OFFSET;
7492                 phba->sli4_hba.RQDBregaddr =
7493                         phba->sli4_hba.conf_regs_memmap_p +
7494                                                 LPFC_ULP0_RQ_DOORBELL;
7495                 phba->sli4_hba.WQDBregaddr =
7496                         phba->sli4_hba.conf_regs_memmap_p +
7497                                                 LPFC_ULP0_WQ_DOORBELL;
7498                 phba->sli4_hba.CQDBregaddr =
7499                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7500                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
7501                 phba->sli4_hba.MQDBregaddr =
7502                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7503                 phba->sli4_hba.BMBXregaddr =
7504                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7505                 break;
7506         case LPFC_SLI_INTF_IF_TYPE_6:
7507                 phba->sli4_hba.u.if_type2.EQDregaddr =
7508                         phba->sli4_hba.conf_regs_memmap_p +
7509                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7510                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7511                         phba->sli4_hba.conf_regs_memmap_p +
7512                                                 LPFC_CTL_PORT_ER1_OFFSET;
7513                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7514                         phba->sli4_hba.conf_regs_memmap_p +
7515                                                 LPFC_CTL_PORT_ER2_OFFSET;
7516                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7517                         phba->sli4_hba.conf_regs_memmap_p +
7518                                                 LPFC_CTL_PORT_CTL_OFFSET;
7519                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7520                         phba->sli4_hba.conf_regs_memmap_p +
7521                                                 LPFC_CTL_PORT_STA_OFFSET;
7522                 phba->sli4_hba.PSMPHRregaddr =
7523                         phba->sli4_hba.conf_regs_memmap_p +
7524                                                 LPFC_CTL_PORT_SEM_OFFSET;
7525                 phba->sli4_hba.BMBXregaddr =
7526                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7527                 break;
7528         case LPFC_SLI_INTF_IF_TYPE_1:
7529         default:
7530                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7531                            "FATAL - unsupported SLI4 interface type - %d\n",
7532                            if_type);
7533                 break;
7534         }
7535 }
7536
7537 /**
7538  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7539  * @phba: pointer to lpfc hba data structure.
7540  *
7541  * This routine is invoked to set up SLI4 BAR1 register memory map.
7542  **/
7543 static void
7544 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7545 {
7546         switch (if_type) {
7547         case LPFC_SLI_INTF_IF_TYPE_0:
7548                 phba->sli4_hba.PSMPHRregaddr =
7549                         phba->sli4_hba.ctrl_regs_memmap_p +
7550                         LPFC_SLIPORT_IF0_SMPHR;
7551                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7552                         LPFC_HST_ISR0;
7553                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7554                         LPFC_HST_IMR0;
7555                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7556                         LPFC_HST_ISCR0;
7557                 break;
7558         case LPFC_SLI_INTF_IF_TYPE_6:
7559                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7560                         LPFC_IF6_RQ_DOORBELL;
7561                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7562                         LPFC_IF6_WQ_DOORBELL;
7563                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7564                         LPFC_IF6_CQ_DOORBELL;
7565                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7566                         LPFC_IF6_EQ_DOORBELL;
7567                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
7568                         LPFC_IF6_MQ_DOORBELL;
7569                 break;
7570         case LPFC_SLI_INTF_IF_TYPE_2:
7571         case LPFC_SLI_INTF_IF_TYPE_1:
7572         default:
7573                 dev_err(&phba->pcidev->dev,
7574                            "FATAL - unsupported SLI4 interface type - %d\n",
7575                            if_type);
7576                 break;
7577         }
7578 }
7579
7580 /**
7581  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7582  * @phba: pointer to lpfc hba data structure.
7583  * @vf: virtual function number
7584  *
7585  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7586  * based on the given viftual function number, @vf.
7587  *
7588  * Return 0 if successful, otherwise -ENODEV.
7589  **/
7590 static int
7591 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7592 {
7593         if (vf > LPFC_VIR_FUNC_MAX)
7594                 return -ENODEV;
7595
7596         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7597                                 vf * LPFC_VFR_PAGE_SIZE +
7598                                         LPFC_ULP0_RQ_DOORBELL);
7599         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7600                                 vf * LPFC_VFR_PAGE_SIZE +
7601                                         LPFC_ULP0_WQ_DOORBELL);
7602         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7603                                 vf * LPFC_VFR_PAGE_SIZE +
7604                                         LPFC_EQCQ_DOORBELL);
7605         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
7606         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7607                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7608         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7609                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7610         return 0;
7611 }
7612
7613 /**
7614  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7615  * @phba: pointer to lpfc hba data structure.
7616  *
7617  * This routine is invoked to create the bootstrap mailbox
7618  * region consistent with the SLI-4 interface spec.  This
7619  * routine allocates all memory necessary to communicate
7620  * mailbox commands to the port and sets up all alignment
7621  * needs.  No locks are expected to be held when calling
7622  * this routine.
7623  *
7624  * Return codes
7625  *      0 - successful
7626  *      -ENOMEM - could not allocated memory.
7627  **/
7628 static int
7629 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7630 {
7631         uint32_t bmbx_size;
7632         struct lpfc_dmabuf *dmabuf;
7633         struct dma_address *dma_address;
7634         uint32_t pa_addr;
7635         uint64_t phys_addr;
7636
7637         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7638         if (!dmabuf)
7639                 return -ENOMEM;
7640
7641         /*
7642          * The bootstrap mailbox region is comprised of 2 parts
7643          * plus an alignment restriction of 16 bytes.
7644          */
7645         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7646         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
7647                                            &dmabuf->phys, GFP_KERNEL);
7648         if (!dmabuf->virt) {
7649                 kfree(dmabuf);
7650                 return -ENOMEM;
7651         }
7652
7653         /*
7654          * Initialize the bootstrap mailbox pointers now so that the register
7655          * operations are simple later.  The mailbox dma address is required
7656          * to be 16-byte aligned.  Also align the virtual memory as each
7657          * maibox is copied into the bmbx mailbox region before issuing the
7658          * command to the port.
7659          */
7660         phba->sli4_hba.bmbx.dmabuf = dmabuf;
7661         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7662
7663         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7664                                               LPFC_ALIGN_16_BYTE);
7665         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7666                                               LPFC_ALIGN_16_BYTE);
7667
7668         /*
7669          * Set the high and low physical addresses now.  The SLI4 alignment
7670          * requirement is 16 bytes and the mailbox is posted to the port
7671          * as two 30-bit addresses.  The other data is a bit marking whether
7672          * the 30-bit address is the high or low address.
7673          * Upcast bmbx aphys to 64bits so shift instruction compiles
7674          * clean on 32 bit machines.
7675          */
7676         dma_address = &phba->sli4_hba.bmbx.dma_address;
7677         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7678         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7679         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7680                                            LPFC_BMBX_BIT1_ADDR_HI);
7681
7682         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7683         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7684                                            LPFC_BMBX_BIT1_ADDR_LO);
7685         return 0;
7686 }
7687
7688 /**
7689  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7690  * @phba: pointer to lpfc hba data structure.
7691  *
7692  * This routine is invoked to teardown the bootstrap mailbox
7693  * region and release all host resources. This routine requires
7694  * the caller to ensure all mailbox commands recovered, no
7695  * additional mailbox comands are sent, and interrupts are disabled
7696  * before calling this routine.
7697  *
7698  **/
7699 static void
7700 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7701 {
7702         dma_free_coherent(&phba->pcidev->dev,
7703                           phba->sli4_hba.bmbx.bmbx_size,
7704                           phba->sli4_hba.bmbx.dmabuf->virt,
7705                           phba->sli4_hba.bmbx.dmabuf->phys);
7706
7707         kfree(phba->sli4_hba.bmbx.dmabuf);
7708         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7709 }
7710
7711 /**
7712  * lpfc_sli4_read_config - Get the config parameters.
7713  * @phba: pointer to lpfc hba data structure.
7714  *
7715  * This routine is invoked to read the configuration parameters from the HBA.
7716  * The configuration parameters are used to set the base and maximum values
7717  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7718  * allocation for the port.
7719  *
7720  * Return codes
7721  *      0 - successful
7722  *      -ENOMEM - No available memory
7723  *      -EIO - The mailbox failed to complete successfully.
7724  **/
7725 int
7726 lpfc_sli4_read_config(struct lpfc_hba *phba)
7727 {
7728         LPFC_MBOXQ_t *pmb;
7729         struct lpfc_mbx_read_config *rd_config;
7730         union  lpfc_sli4_cfg_shdr *shdr;
7731         uint32_t shdr_status, shdr_add_status;
7732         struct lpfc_mbx_get_func_cfg *get_func_cfg;
7733         struct lpfc_rsrc_desc_fcfcoe *desc;
7734         char *pdesc_0;
7735         uint16_t forced_link_speed;
7736         uint32_t if_type;
7737         int length, i, rc = 0, rc2;
7738
7739         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7740         if (!pmb) {
7741                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7742                                 "2011 Unable to allocate memory for issuing "
7743                                 "SLI_CONFIG_SPECIAL mailbox command\n");
7744                 return -ENOMEM;
7745         }
7746
7747         lpfc_read_config(phba, pmb);
7748
7749         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7750         if (rc != MBX_SUCCESS) {
7751                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7752                         "2012 Mailbox failed , mbxCmd x%x "
7753                         "READ_CONFIG, mbxStatus x%x\n",
7754                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
7755                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
7756                 rc = -EIO;
7757         } else {
7758                 rd_config = &pmb->u.mqe.un.rd_config;
7759                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7760                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7761                         phba->sli4_hba.lnk_info.lnk_tp =
7762                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7763                         phba->sli4_hba.lnk_info.lnk_no =
7764                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7765                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7766                                         "3081 lnk_type:%d, lnk_numb:%d\n",
7767                                         phba->sli4_hba.lnk_info.lnk_tp,
7768                                         phba->sli4_hba.lnk_info.lnk_no);
7769                 } else
7770                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7771                                         "3082 Mailbox (x%x) returned ldv:x0\n",
7772                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
7773                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
7774                         phba->bbcredit_support = 1;
7775                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
7776                 }
7777
7778                 phba->sli4_hba.extents_in_use =
7779                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7780                 phba->sli4_hba.max_cfg_param.max_xri =
7781                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7782                 phba->sli4_hba.max_cfg_param.xri_base =
7783                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7784                 phba->sli4_hba.max_cfg_param.max_vpi =
7785                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7786                 phba->sli4_hba.max_cfg_param.vpi_base =
7787                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7788                 phba->sli4_hba.max_cfg_param.max_rpi =
7789                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7790                 phba->sli4_hba.max_cfg_param.rpi_base =
7791                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7792                 phba->sli4_hba.max_cfg_param.max_vfi =
7793                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7794                 phba->sli4_hba.max_cfg_param.vfi_base =
7795                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7796                 phba->sli4_hba.max_cfg_param.max_fcfi =
7797                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7798                 phba->sli4_hba.max_cfg_param.max_eq =
7799                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7800                 phba->sli4_hba.max_cfg_param.max_rq =
7801                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7802                 phba->sli4_hba.max_cfg_param.max_wq =
7803                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7804                 phba->sli4_hba.max_cfg_param.max_cq =
7805                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7806                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7807                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7808                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7809                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7810                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7811                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7812                 phba->max_vports = phba->max_vpi;
7813                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7814                                 "2003 cfg params Extents? %d "
7815                                 "XRI(B:%d M:%d), "
7816                                 "VPI(B:%d M:%d) "
7817                                 "VFI(B:%d M:%d) "
7818                                 "RPI(B:%d M:%d) "
7819                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7820                                 phba->sli4_hba.extents_in_use,
7821                                 phba->sli4_hba.max_cfg_param.xri_base,
7822                                 phba->sli4_hba.max_cfg_param.max_xri,
7823                                 phba->sli4_hba.max_cfg_param.vpi_base,
7824                                 phba->sli4_hba.max_cfg_param.max_vpi,
7825                                 phba->sli4_hba.max_cfg_param.vfi_base,
7826                                 phba->sli4_hba.max_cfg_param.max_vfi,
7827                                 phba->sli4_hba.max_cfg_param.rpi_base,
7828                                 phba->sli4_hba.max_cfg_param.max_rpi,
7829                                 phba->sli4_hba.max_cfg_param.max_fcfi,
7830                                 phba->sli4_hba.max_cfg_param.max_eq,
7831                                 phba->sli4_hba.max_cfg_param.max_cq,
7832                                 phba->sli4_hba.max_cfg_param.max_wq,
7833                                 phba->sli4_hba.max_cfg_param.max_rq);
7834
7835                 /*
7836                  * Calculate NVME queue resources based on how
7837                  * many WQ/CQs are available.
7838                  */
7839                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7840                         length = phba->sli4_hba.max_cfg_param.max_wq;
7841                         if (phba->sli4_hba.max_cfg_param.max_cq <
7842                             phba->sli4_hba.max_cfg_param.max_wq)
7843                                 length = phba->sli4_hba.max_cfg_param.max_cq;
7844
7845                         /*
7846                          * Whats left after this can go toward NVME.
7847                          * The minus 6 accounts for ELS, NVME LS, MBOX
7848                          * fof plus a couple extra. When configured for
7849                          * NVMET, FCP io channel WQs are not created.
7850                          */
7851                         length -= 6;
7852                         if (!phba->nvmet_support)
7853                                 length -= phba->cfg_fcp_io_channel;
7854
7855                         if (phba->cfg_nvme_io_channel > length) {
7856                                 lpfc_printf_log(
7857                                         phba, KERN_ERR, LOG_SLI,
7858                                         "2005 Reducing NVME IO channel to %d: "
7859                                         "WQ %d CQ %d NVMEIO %d FCPIO %d\n",
7860                                         length,
7861                                         phba->sli4_hba.max_cfg_param.max_wq,
7862                                         phba->sli4_hba.max_cfg_param.max_cq,
7863                                         phba->cfg_nvme_io_channel,
7864                                         phba->cfg_fcp_io_channel);
7865
7866                                 phba->cfg_nvme_io_channel = length;
7867                         }
7868                 }
7869         }
7870
7871         if (rc)
7872                 goto read_cfg_out;
7873
7874         /* Update link speed if forced link speed is supported */
7875         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7876         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
7877                 forced_link_speed =
7878                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
7879                 if (forced_link_speed) {
7880                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
7881
7882                         switch (forced_link_speed) {
7883                         case LINK_SPEED_1G:
7884                                 phba->cfg_link_speed =
7885                                         LPFC_USER_LINK_SPEED_1G;
7886                                 break;
7887                         case LINK_SPEED_2G:
7888                                 phba->cfg_link_speed =
7889                                         LPFC_USER_LINK_SPEED_2G;
7890                                 break;
7891                         case LINK_SPEED_4G:
7892                                 phba->cfg_link_speed =
7893                                         LPFC_USER_LINK_SPEED_4G;
7894                                 break;
7895                         case LINK_SPEED_8G:
7896                                 phba->cfg_link_speed =
7897                                         LPFC_USER_LINK_SPEED_8G;
7898                                 break;
7899                         case LINK_SPEED_10G:
7900                                 phba->cfg_link_speed =
7901                                         LPFC_USER_LINK_SPEED_10G;
7902                                 break;
7903                         case LINK_SPEED_16G:
7904                                 phba->cfg_link_speed =
7905                                         LPFC_USER_LINK_SPEED_16G;
7906                                 break;
7907                         case LINK_SPEED_32G:
7908                                 phba->cfg_link_speed =
7909                                         LPFC_USER_LINK_SPEED_32G;
7910                                 break;
7911                         case LINK_SPEED_64G:
7912                                 phba->cfg_link_speed =
7913                                         LPFC_USER_LINK_SPEED_64G;
7914                                 break;
7915                         case 0xffff:
7916                                 phba->cfg_link_speed =
7917                                         LPFC_USER_LINK_SPEED_AUTO;
7918                                 break;
7919                         default:
7920                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7921                                                 "0047 Unrecognized link "
7922                                                 "speed : %d\n",
7923                                                 forced_link_speed);
7924                                 phba->cfg_link_speed =
7925                                         LPFC_USER_LINK_SPEED_AUTO;
7926                         }
7927                 }
7928         }
7929
7930         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
7931         length = phba->sli4_hba.max_cfg_param.max_xri -
7932                         lpfc_sli4_get_els_iocb_cnt(phba);
7933         if (phba->cfg_hba_queue_depth > length) {
7934                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7935                                 "3361 HBA queue depth changed from %d to %d\n",
7936                                 phba->cfg_hba_queue_depth, length);
7937                 phba->cfg_hba_queue_depth = length;
7938         }
7939
7940         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
7941             LPFC_SLI_INTF_IF_TYPE_2)
7942                 goto read_cfg_out;
7943
7944         /* get the pf# and vf# for SLI4 if_type 2 port */
7945         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7946                   sizeof(struct lpfc_sli4_cfg_mhdr));
7947         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7948                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7949                          length, LPFC_SLI4_MBX_EMBED);
7950
7951         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7952         shdr = (union lpfc_sli4_cfg_shdr *)
7953                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7954         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7955         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7956         if (rc2 || shdr_status || shdr_add_status) {
7957                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7958                                 "3026 Mailbox failed , mbxCmd x%x "
7959                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7960                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7961                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7962                 goto read_cfg_out;
7963         }
7964
7965         /* search for fc_fcoe resrouce descriptor */
7966         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7967
7968         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7969         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7970         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7971         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7972                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7973         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7974                 goto read_cfg_out;
7975
7976         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7977                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7978                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7979                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7980                         phba->sli4_hba.iov.pf_number =
7981                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7982                         phba->sli4_hba.iov.vf_number =
7983                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7984                         break;
7985                 }
7986         }
7987
7988         if (i < LPFC_RSRC_DESC_MAX_NUM)
7989                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7990                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7991                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7992                                 phba->sli4_hba.iov.vf_number);
7993         else
7994                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7995                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7996                                 "Resource Descriptor:x%x\n",
7997                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7998
7999 read_cfg_out:
8000         mempool_free(pmb, phba->mbox_mem_pool);
8001         return rc;
8002 }
8003
8004 /**
8005  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8006  * @phba: pointer to lpfc hba data structure.
8007  *
8008  * This routine is invoked to setup the port-side endian order when
8009  * the port if_type is 0.  This routine has no function for other
8010  * if_types.
8011  *
8012  * Return codes
8013  *      0 - successful
8014  *      -ENOMEM - No available memory
8015  *      -EIO - The mailbox failed to complete successfully.
8016  **/
8017 static int
8018 lpfc_setup_endian_order(struct lpfc_hba *phba)
8019 {
8020         LPFC_MBOXQ_t *mboxq;
8021         uint32_t if_type, rc = 0;
8022         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8023                                       HOST_ENDIAN_HIGH_WORD1};
8024
8025         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8026         switch (if_type) {
8027         case LPFC_SLI_INTF_IF_TYPE_0:
8028                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8029                                                        GFP_KERNEL);
8030                 if (!mboxq) {
8031                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8032                                         "0492 Unable to allocate memory for "
8033                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8034                                         "command\n");
8035                         return -ENOMEM;
8036                 }
8037
8038                 /*
8039                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8040                  * two words to contain special data values and no other data.
8041                  */
8042                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8043                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8044                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8045                 if (rc != MBX_SUCCESS) {
8046                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8047                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8048                                         "failed with status x%x\n",
8049                                         rc);
8050                         rc = -EIO;
8051                 }
8052                 mempool_free(mboxq, phba->mbox_mem_pool);
8053                 break;
8054         case LPFC_SLI_INTF_IF_TYPE_6:
8055         case LPFC_SLI_INTF_IF_TYPE_2:
8056         case LPFC_SLI_INTF_IF_TYPE_1:
8057         default:
8058                 break;
8059         }
8060         return rc;
8061 }
8062
8063 /**
8064  * lpfc_sli4_queue_verify - Verify and update EQ counts
8065  * @phba: pointer to lpfc hba data structure.
8066  *
8067  * This routine is invoked to check the user settable queue counts for EQs.
8068  * After this routine is called the counts will be set to valid values that
8069  * adhere to the constraints of the system's interrupt vectors and the port's
8070  * queue resources.
8071  *
8072  * Return codes
8073  *      0 - successful
8074  *      -ENOMEM - No available memory
8075  **/
8076 static int
8077 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8078 {
8079         int io_channel;
8080         int fof_vectors = phba->cfg_fof ? 1 : 0;
8081
8082         /*
8083          * Sanity check for configured queue parameters against the run-time
8084          * device parameters
8085          */
8086
8087         /* Sanity check on HBA EQ parameters */
8088         io_channel = phba->io_channel_irqs;
8089
8090         if (phba->sli4_hba.num_online_cpu < io_channel) {
8091                 lpfc_printf_log(phba,
8092                                 KERN_ERR, LOG_INIT,
8093                                 "3188 Reducing IO channels to match number of "
8094                                 "online CPUs: from %d to %d\n",
8095                                 io_channel, phba->sli4_hba.num_online_cpu);
8096                 io_channel = phba->sli4_hba.num_online_cpu;
8097         }
8098
8099         if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
8100                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8101                                 "2575 Reducing IO channels to match number of "
8102                                 "available EQs: from %d to %d\n",
8103                                 io_channel,
8104                                 phba->sli4_hba.max_cfg_param.max_eq);
8105                 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
8106         }
8107
8108         /* The actual number of FCP / NVME event queues adopted */
8109         if (io_channel != phba->io_channel_irqs)
8110                 phba->io_channel_irqs = io_channel;
8111         if (phba->cfg_fcp_io_channel > io_channel)
8112                 phba->cfg_fcp_io_channel = io_channel;
8113         if (phba->cfg_nvme_io_channel > io_channel)
8114                 phba->cfg_nvme_io_channel = io_channel;
8115         if (phba->nvmet_support) {
8116                 if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
8117                         phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
8118         }
8119         if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8120                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8121
8122         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8123                         "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
8124                         phba->io_channel_irqs, phba->cfg_fcp_io_channel,
8125                         phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
8126
8127         /* Get EQ depth from module parameter, fake the default for now */
8128         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8129         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8130
8131         /* Get CQ depth from module parameter, fake the default for now */
8132         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8133         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8134         return 0;
8135 }
8136
8137 static int
8138 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
8139 {
8140         struct lpfc_queue *qdesc;
8141
8142         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8143                                       phba->sli4_hba.cq_esize,
8144                                       LPFC_CQE_EXP_COUNT);
8145         if (!qdesc) {
8146                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8147                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
8148                                 wqidx);
8149                 return 1;
8150         }
8151         qdesc->qe_valid = 1;
8152         phba->sli4_hba.nvme_cq[wqidx] = qdesc;
8153
8154         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8155                                       LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT);
8156         if (!qdesc) {
8157                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8158                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
8159                                 wqidx);
8160                 return 1;
8161         }
8162         phba->sli4_hba.nvme_wq[wqidx] = qdesc;
8163         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8164         return 0;
8165 }
8166
8167 static int
8168 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
8169 {
8170         struct lpfc_queue *qdesc;
8171         uint32_t wqesize;
8172
8173         /* Create Fast Path FCP CQs */
8174         if (phba->enab_exp_wqcq_pages)
8175                 /* Increase the CQ size when WQEs contain an embedded cdb */
8176                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8177                                               phba->sli4_hba.cq_esize,
8178                                               LPFC_CQE_EXP_COUNT);
8179
8180         else
8181                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8182                                               phba->sli4_hba.cq_esize,
8183                                               phba->sli4_hba.cq_ecount);
8184         if (!qdesc) {
8185                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8186                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
8187                 return 1;
8188         }
8189         qdesc->qe_valid = 1;
8190         phba->sli4_hba.fcp_cq[wqidx] = qdesc;
8191
8192         /* Create Fast Path FCP WQs */
8193         if (phba->enab_exp_wqcq_pages) {
8194                 /* Increase the WQ size when WQEs contain an embedded cdb */
8195                 wqesize = (phba->fcp_embed_io) ?
8196                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8197                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8198                                               wqesize,
8199                                               LPFC_WQE_EXP_COUNT);
8200         } else
8201                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8202                                               phba->sli4_hba.wq_esize,
8203                                               phba->sli4_hba.wq_ecount);
8204
8205         if (!qdesc) {
8206                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8207                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
8208                                 wqidx);
8209                 return 1;
8210         }
8211         phba->sli4_hba.fcp_wq[wqidx] = qdesc;
8212         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8213         return 0;
8214 }
8215
8216 /**
8217  * lpfc_sli4_queue_create - Create all the SLI4 queues
8218  * @phba: pointer to lpfc hba data structure.
8219  *
8220  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8221  * operation. For each SLI4 queue type, the parameters such as queue entry
8222  * count (queue depth) shall be taken from the module parameter. For now,
8223  * we just use some constant number as place holder.
8224  *
8225  * Return codes
8226  *      0 - successful
8227  *      -ENOMEM - No availble memory
8228  *      -EIO - The mailbox failed to complete successfully.
8229  **/
8230 int
8231 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8232 {
8233         struct lpfc_queue *qdesc;
8234         int idx, io_channel;
8235
8236         /*
8237          * Create HBA Record arrays.
8238          * Both NVME and FCP will share that same vectors / EQs
8239          */
8240         io_channel = phba->io_channel_irqs;
8241         if (!io_channel)
8242                 return -ERANGE;
8243
8244         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8245         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8246         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8247         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8248         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8249         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8250         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8251         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8252         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8253         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8254
8255         phba->sli4_hba.hba_eq =  kcalloc(io_channel,
8256                                         sizeof(struct lpfc_queue *),
8257                                         GFP_KERNEL);
8258         if (!phba->sli4_hba.hba_eq) {
8259                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8260                         "2576 Failed allocate memory for "
8261                         "fast-path EQ record array\n");
8262                 goto out_error;
8263         }
8264
8265         if (phba->cfg_fcp_io_channel) {
8266                 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
8267                                                 sizeof(struct lpfc_queue *),
8268                                                 GFP_KERNEL);
8269                 if (!phba->sli4_hba.fcp_cq) {
8270                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8271                                         "2577 Failed allocate memory for "
8272                                         "fast-path CQ record array\n");
8273                         goto out_error;
8274                 }
8275                 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
8276                                                 sizeof(struct lpfc_queue *),
8277                                                 GFP_KERNEL);
8278                 if (!phba->sli4_hba.fcp_wq) {
8279                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8280                                         "2578 Failed allocate memory for "
8281                                         "fast-path FCP WQ record array\n");
8282                         goto out_error;
8283                 }
8284                 /*
8285                  * Since the first EQ can have multiple CQs associated with it,
8286                  * this array is used to quickly see if we have a FCP fast-path
8287                  * CQ match.
8288                  */
8289                 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
8290                                                         sizeof(uint16_t),
8291                                                         GFP_KERNEL);
8292                 if (!phba->sli4_hba.fcp_cq_map) {
8293                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8294                                         "2545 Failed allocate memory for "
8295                                         "fast-path CQ map\n");
8296                         goto out_error;
8297                 }
8298         }
8299
8300         if (phba->cfg_nvme_io_channel) {
8301                 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
8302                                                 sizeof(struct lpfc_queue *),
8303                                                 GFP_KERNEL);
8304                 if (!phba->sli4_hba.nvme_cq) {
8305                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8306                                         "6077 Failed allocate memory for "
8307                                         "fast-path CQ record array\n");
8308                         goto out_error;
8309                 }
8310
8311                 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
8312                                                 sizeof(struct lpfc_queue *),
8313                                                 GFP_KERNEL);
8314                 if (!phba->sli4_hba.nvme_wq) {
8315                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8316                                         "2581 Failed allocate memory for "
8317                                         "fast-path NVME WQ record array\n");
8318                         goto out_error;
8319                 }
8320
8321                 /*
8322                  * Since the first EQ can have multiple CQs associated with it,
8323                  * this array is used to quickly see if we have a NVME fast-path
8324                  * CQ match.
8325                  */
8326                 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
8327                                                         sizeof(uint16_t),
8328                                                         GFP_KERNEL);
8329                 if (!phba->sli4_hba.nvme_cq_map) {
8330                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8331                                         "6078 Failed allocate memory for "
8332                                         "fast-path CQ map\n");
8333                         goto out_error;
8334                 }
8335
8336                 if (phba->nvmet_support) {
8337                         phba->sli4_hba.nvmet_cqset = kcalloc(
8338                                         phba->cfg_nvmet_mrq,
8339                                         sizeof(struct lpfc_queue *),
8340                                         GFP_KERNEL);
8341                         if (!phba->sli4_hba.nvmet_cqset) {
8342                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8343                                         "3121 Fail allocate memory for "
8344                                         "fast-path CQ set array\n");
8345                                 goto out_error;
8346                         }
8347                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8348                                         phba->cfg_nvmet_mrq,
8349                                         sizeof(struct lpfc_queue *),
8350                                         GFP_KERNEL);
8351                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8352                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8353                                         "3122 Fail allocate memory for "
8354                                         "fast-path RQ set hdr array\n");
8355                                 goto out_error;
8356                         }
8357                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8358                                         phba->cfg_nvmet_mrq,
8359                                         sizeof(struct lpfc_queue *),
8360                                         GFP_KERNEL);
8361                         if (!phba->sli4_hba.nvmet_mrq_data) {
8362                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8363                                         "3124 Fail allocate memory for "
8364                                         "fast-path RQ set data array\n");
8365                                 goto out_error;
8366                         }
8367                 }
8368         }
8369
8370         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8371
8372         /* Create HBA Event Queues (EQs) */
8373         for (idx = 0; idx < io_channel; idx++) {
8374                 /* Create EQs */
8375                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8376                                               phba->sli4_hba.eq_esize,
8377                                               phba->sli4_hba.eq_ecount);
8378                 if (!qdesc) {
8379                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8380                                         "0497 Failed allocate EQ (%d)\n", idx);
8381                         goto out_error;
8382                 }
8383                 qdesc->qe_valid = 1;
8384                 phba->sli4_hba.hba_eq[idx] = qdesc;
8385         }
8386
8387         /* FCP and NVME io channels are not required to be balanced */
8388
8389         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8390                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8391                         goto out_error;
8392
8393         for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8394                 if (lpfc_alloc_nvme_wq_cq(phba, idx))
8395                         goto out_error;
8396
8397         if (phba->nvmet_support) {
8398                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8399                         qdesc = lpfc_sli4_queue_alloc(phba,
8400                                                       LPFC_DEFAULT_PAGE_SIZE,
8401                                                       phba->sli4_hba.cq_esize,
8402                                                       phba->sli4_hba.cq_ecount);
8403                         if (!qdesc) {
8404                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8405                                         "3142 Failed allocate NVME "
8406                                         "CQ Set (%d)\n", idx);
8407                                 goto out_error;
8408                         }
8409                         qdesc->qe_valid = 1;
8410                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8411                 }
8412         }
8413
8414         /*
8415          * Create Slow Path Completion Queues (CQs)
8416          */
8417
8418         /* Create slow-path Mailbox Command Complete Queue */
8419         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8420                                       phba->sli4_hba.cq_esize,
8421                                       phba->sli4_hba.cq_ecount);
8422         if (!qdesc) {
8423                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8424                                 "0500 Failed allocate slow-path mailbox CQ\n");
8425                 goto out_error;
8426         }
8427         qdesc->qe_valid = 1;
8428         phba->sli4_hba.mbx_cq = qdesc;
8429
8430         /* Create slow-path ELS Complete Queue */
8431         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8432                                       phba->sli4_hba.cq_esize,
8433                                       phba->sli4_hba.cq_ecount);
8434         if (!qdesc) {
8435                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8436                                 "0501 Failed allocate slow-path ELS CQ\n");
8437                 goto out_error;
8438         }
8439         qdesc->qe_valid = 1;
8440         phba->sli4_hba.els_cq = qdesc;
8441
8442
8443         /*
8444          * Create Slow Path Work Queues (WQs)
8445          */
8446
8447         /* Create Mailbox Command Queue */
8448
8449         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8450                                       phba->sli4_hba.mq_esize,
8451                                       phba->sli4_hba.mq_ecount);
8452         if (!qdesc) {
8453                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8454                                 "0505 Failed allocate slow-path MQ\n");
8455                 goto out_error;
8456         }
8457         phba->sli4_hba.mbx_wq = qdesc;
8458
8459         /*
8460          * Create ELS Work Queues
8461          */
8462
8463         /* Create slow-path ELS Work Queue */
8464         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8465                                       phba->sli4_hba.wq_esize,
8466                                       phba->sli4_hba.wq_ecount);
8467         if (!qdesc) {
8468                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8469                                 "0504 Failed allocate slow-path ELS WQ\n");
8470                 goto out_error;
8471         }
8472         phba->sli4_hba.els_wq = qdesc;
8473         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8474
8475         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8476                 /* Create NVME LS Complete Queue */
8477                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8478                                               phba->sli4_hba.cq_esize,
8479                                               phba->sli4_hba.cq_ecount);
8480                 if (!qdesc) {
8481                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8482                                         "6079 Failed allocate NVME LS CQ\n");
8483                         goto out_error;
8484                 }
8485                 qdesc->qe_valid = 1;
8486                 phba->sli4_hba.nvmels_cq = qdesc;
8487
8488                 /* Create NVME LS Work Queue */
8489                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8490                                               phba->sli4_hba.wq_esize,
8491                                               phba->sli4_hba.wq_ecount);
8492                 if (!qdesc) {
8493                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8494                                         "6080 Failed allocate NVME LS WQ\n");
8495                         goto out_error;
8496                 }
8497                 phba->sli4_hba.nvmels_wq = qdesc;
8498                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8499         }
8500
8501         /*
8502          * Create Receive Queue (RQ)
8503          */
8504
8505         /* Create Receive Queue for header */
8506         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8507                                       phba->sli4_hba.rq_esize,
8508                                       phba->sli4_hba.rq_ecount);
8509         if (!qdesc) {
8510                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8511                                 "0506 Failed allocate receive HRQ\n");
8512                 goto out_error;
8513         }
8514         phba->sli4_hba.hdr_rq = qdesc;
8515
8516         /* Create Receive Queue for data */
8517         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8518                                       phba->sli4_hba.rq_esize,
8519                                       phba->sli4_hba.rq_ecount);
8520         if (!qdesc) {
8521                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8522                                 "0507 Failed allocate receive DRQ\n");
8523                 goto out_error;
8524         }
8525         phba->sli4_hba.dat_rq = qdesc;
8526
8527         if (phba->nvmet_support) {
8528                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8529                         /* Create NVMET Receive Queue for header */
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                                                 "3146 Failed allocate "
8537                                                 "receive HRQ\n");
8538                                 goto out_error;
8539                         }
8540                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8541
8542                         /* Only needed for header of RQ pair */
8543                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8544                                               GFP_KERNEL);
8545                         if (qdesc->rqbp == NULL) {
8546                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8547                                                 "6131 Failed allocate "
8548                                                 "Header RQBP\n");
8549                                 goto out_error;
8550                         }
8551
8552                         /* Put list in known state in case driver load fails. */
8553                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
8554
8555                         /* Create NVMET Receive Queue for data */
8556                         qdesc = lpfc_sli4_queue_alloc(phba,
8557                                                       LPFC_DEFAULT_PAGE_SIZE,
8558                                                       phba->sli4_hba.rq_esize,
8559                                                       LPFC_NVMET_RQE_DEF_COUNT);
8560                         if (!qdesc) {
8561                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8562                                                 "3156 Failed allocate "
8563                                                 "receive DRQ\n");
8564                                 goto out_error;
8565                         }
8566                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8567                 }
8568         }
8569
8570         /* Create the Queues needed for Flash Optimized Fabric operations */
8571         if (phba->cfg_fof)
8572                 lpfc_fof_queue_create(phba);
8573         return 0;
8574
8575 out_error:
8576         lpfc_sli4_queue_destroy(phba);
8577         return -ENOMEM;
8578 }
8579
8580 static inline void
8581 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8582 {
8583         if (*qp != NULL) {
8584                 lpfc_sli4_queue_free(*qp);
8585                 *qp = NULL;
8586         }
8587 }
8588
8589 static inline void
8590 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8591 {
8592         int idx;
8593
8594         if (*qs == NULL)
8595                 return;
8596
8597         for (idx = 0; idx < max; idx++)
8598                 __lpfc_sli4_release_queue(&(*qs)[idx]);
8599
8600         kfree(*qs);
8601         *qs = NULL;
8602 }
8603
8604 static inline void
8605 lpfc_sli4_release_queue_map(uint16_t **qmap)
8606 {
8607         if (*qmap != NULL) {
8608                 kfree(*qmap);
8609                 *qmap = NULL;
8610         }
8611 }
8612
8613 /**
8614  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8615  * @phba: pointer to lpfc hba data structure.
8616  *
8617  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8618  * operation.
8619  *
8620  * Return codes
8621  *      0 - successful
8622  *      -ENOMEM - No available memory
8623  *      -EIO - The mailbox failed to complete successfully.
8624  **/
8625 void
8626 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8627 {
8628         if (phba->cfg_fof)
8629                 lpfc_fof_queue_destroy(phba);
8630
8631         /* Release HBA eqs */
8632         lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8633
8634         /* Release FCP cqs */
8635         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8636                                  phba->cfg_fcp_io_channel);
8637
8638         /* Release FCP wqs */
8639         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8640                                  phba->cfg_fcp_io_channel);
8641
8642         /* Release FCP CQ mapping array */
8643         lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8644
8645         /* Release NVME cqs */
8646         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8647                                         phba->cfg_nvme_io_channel);
8648
8649         /* Release NVME wqs */
8650         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8651                                         phba->cfg_nvme_io_channel);
8652
8653         /* Release NVME CQ mapping array */
8654         lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8655
8656         if (phba->nvmet_support) {
8657                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8658                                          phba->cfg_nvmet_mrq);
8659
8660                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8661                                          phba->cfg_nvmet_mrq);
8662                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8663                                          phba->cfg_nvmet_mrq);
8664         }
8665
8666         /* Release mailbox command work queue */
8667         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8668
8669         /* Release ELS work queue */
8670         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8671
8672         /* Release ELS work queue */
8673         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8674
8675         /* Release unsolicited receive queue */
8676         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8677         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8678
8679         /* Release ELS complete queue */
8680         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8681
8682         /* Release NVME LS complete queue */
8683         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8684
8685         /* Release mailbox command complete queue */
8686         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8687
8688         /* Everything on this list has been freed */
8689         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8690 }
8691
8692 int
8693 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8694 {
8695         struct lpfc_rqb *rqbp;
8696         struct lpfc_dmabuf *h_buf;
8697         struct rqb_dmabuf *rqb_buffer;
8698
8699         rqbp = rq->rqbp;
8700         while (!list_empty(&rqbp->rqb_buffer_list)) {
8701                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8702                                  struct lpfc_dmabuf, list);
8703
8704                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8705                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8706                 rqbp->buffer_count--;
8707         }
8708         return 1;
8709 }
8710
8711 static int
8712 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8713         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8714         int qidx, uint32_t qtype)
8715 {
8716         struct lpfc_sli_ring *pring;
8717         int rc;
8718
8719         if (!eq || !cq || !wq) {
8720                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8721                         "6085 Fast-path %s (%d) not allocated\n",
8722                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8723                 return -ENOMEM;
8724         }
8725
8726         /* create the Cq first */
8727         rc = lpfc_cq_create(phba, cq, eq,
8728                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8729         if (rc) {
8730                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8731                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
8732                         qidx, (uint32_t)rc);
8733                 return rc;
8734         }
8735         cq->chann = qidx;
8736
8737         if (qtype != LPFC_MBOX) {
8738                 /* Setup nvme_cq_map for fast lookup */
8739                 if (cq_map)
8740                         *cq_map = cq->queue_id;
8741
8742                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8743                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8744                         qidx, cq->queue_id, qidx, eq->queue_id);
8745
8746                 /* create the wq */
8747                 rc = lpfc_wq_create(phba, wq, cq, qtype);
8748                 if (rc) {
8749                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8750                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8751                                 qidx, (uint32_t)rc);
8752                         /* no need to tear down cq - caller will do so */
8753                         return rc;
8754                 }
8755                 wq->chann = qidx;
8756
8757                 /* Bind this CQ/WQ to the NVME ring */
8758                 pring = wq->pring;
8759                 pring->sli.sli4.wqp = (void *)wq;
8760                 cq->pring = pring;
8761
8762                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8763                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8764                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8765         } else {
8766                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8767                 if (rc) {
8768                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8769                                 "0539 Failed setup of slow-path MQ: "
8770                                 "rc = 0x%x\n", rc);
8771                         /* no need to tear down cq - caller will do so */
8772                         return rc;
8773                 }
8774
8775                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8776                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8777                         phba->sli4_hba.mbx_wq->queue_id,
8778                         phba->sli4_hba.mbx_cq->queue_id);
8779         }
8780
8781         return 0;
8782 }
8783
8784 /**
8785  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8786  * @phba: pointer to lpfc hba data structure.
8787  *
8788  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8789  * operation.
8790  *
8791  * Return codes
8792  *      0 - successful
8793  *      -ENOMEM - No available memory
8794  *      -EIO - The mailbox failed to complete successfully.
8795  **/
8796 int
8797 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8798 {
8799         uint32_t shdr_status, shdr_add_status;
8800         union lpfc_sli4_cfg_shdr *shdr;
8801         LPFC_MBOXQ_t *mboxq;
8802         int qidx;
8803         uint32_t length, io_channel;
8804         int rc = -ENOMEM;
8805
8806         /* Check for dual-ULP support */
8807         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8808         if (!mboxq) {
8809                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8810                                 "3249 Unable to allocate memory for "
8811                                 "QUERY_FW_CFG mailbox command\n");
8812                 return -ENOMEM;
8813         }
8814         length = (sizeof(struct lpfc_mbx_query_fw_config) -
8815                   sizeof(struct lpfc_sli4_cfg_mhdr));
8816         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8817                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8818                          length, LPFC_SLI4_MBX_EMBED);
8819
8820         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8821
8822         shdr = (union lpfc_sli4_cfg_shdr *)
8823                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8824         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8825         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8826         if (shdr_status || shdr_add_status || rc) {
8827                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8828                                 "3250 QUERY_FW_CFG mailbox failed with status "
8829                                 "x%x add_status x%x, mbx status x%x\n",
8830                                 shdr_status, shdr_add_status, rc);
8831                 if (rc != MBX_TIMEOUT)
8832                         mempool_free(mboxq, phba->mbox_mem_pool);
8833                 rc = -ENXIO;
8834                 goto out_error;
8835         }
8836
8837         phba->sli4_hba.fw_func_mode =
8838                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
8839         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
8840         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
8841         phba->sli4_hba.physical_port =
8842                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
8843         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8844                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
8845                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
8846                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
8847
8848         if (rc != MBX_TIMEOUT)
8849                 mempool_free(mboxq, phba->mbox_mem_pool);
8850
8851         /*
8852          * Set up HBA Event Queues (EQs)
8853          */
8854         io_channel = phba->io_channel_irqs;
8855
8856         /* Set up HBA event queue */
8857         if (io_channel && !phba->sli4_hba.hba_eq) {
8858                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8859                                 "3147 Fast-path EQs not allocated\n");
8860                 rc = -ENOMEM;
8861                 goto out_error;
8862         }
8863         for (qidx = 0; qidx < io_channel; qidx++) {
8864                 if (!phba->sli4_hba.hba_eq[qidx]) {
8865                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8866                                         "0522 Fast-path EQ (%d) not "
8867                                         "allocated\n", qidx);
8868                         rc = -ENOMEM;
8869                         goto out_destroy;
8870                 }
8871                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
8872                                                 phba->cfg_fcp_imax);
8873                 if (rc) {
8874                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8875                                         "0523 Failed setup of fast-path EQ "
8876                                         "(%d), rc = 0x%x\n", qidx,
8877                                         (uint32_t)rc);
8878                         goto out_destroy;
8879                 }
8880                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8881                                 "2584 HBA EQ setup: queue[%d]-id=%d\n",
8882                                 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
8883         }
8884
8885         if (phba->cfg_nvme_io_channel) {
8886                 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
8887                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8888                                 "6084 Fast-path NVME %s array not allocated\n",
8889                                 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
8890                         rc = -ENOMEM;
8891                         goto out_destroy;
8892                 }
8893
8894                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
8895                         rc = lpfc_create_wq_cq(phba,
8896                                         phba->sli4_hba.hba_eq[
8897                                                 qidx % io_channel],
8898                                         phba->sli4_hba.nvme_cq[qidx],
8899                                         phba->sli4_hba.nvme_wq[qidx],
8900                                         &phba->sli4_hba.nvme_cq_map[qidx],
8901                                         qidx, LPFC_NVME);
8902                         if (rc) {
8903                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8904                                         "6123 Failed to setup fastpath "
8905                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
8906                                         qidx, (uint32_t)rc);
8907                                 goto out_destroy;
8908                         }
8909                 }
8910         }
8911
8912         if (phba->cfg_fcp_io_channel) {
8913                 /* Set up fast-path FCP Response Complete Queue */
8914                 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
8915                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8916                                 "3148 Fast-path FCP %s array not allocated\n",
8917                                 phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
8918                         rc = -ENOMEM;
8919                         goto out_destroy;
8920                 }
8921
8922                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
8923                         rc = lpfc_create_wq_cq(phba,
8924                                         phba->sli4_hba.hba_eq[
8925                                                 qidx % io_channel],
8926                                         phba->sli4_hba.fcp_cq[qidx],
8927                                         phba->sli4_hba.fcp_wq[qidx],
8928                                         &phba->sli4_hba.fcp_cq_map[qidx],
8929                                         qidx, LPFC_FCP);
8930                         if (rc) {
8931                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8932                                         "0535 Failed to setup fastpath "
8933                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
8934                                         qidx, (uint32_t)rc);
8935                                 goto out_destroy;
8936                         }
8937                 }
8938         }
8939
8940         /*
8941          * Set up Slow Path Complete Queues (CQs)
8942          */
8943
8944         /* Set up slow-path MBOX CQ/MQ */
8945
8946         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
8947                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8948                                 "0528 %s not allocated\n",
8949                                 phba->sli4_hba.mbx_cq ?
8950                                 "Mailbox WQ" : "Mailbox CQ");
8951                 rc = -ENOMEM;
8952                 goto out_destroy;
8953         }
8954
8955         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8956                                phba->sli4_hba.mbx_cq,
8957                                phba->sli4_hba.mbx_wq,
8958                                NULL, 0, LPFC_MBOX);
8959         if (rc) {
8960                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8961                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
8962                         (uint32_t)rc);
8963                 goto out_destroy;
8964         }
8965         if (phba->nvmet_support) {
8966                 if (!phba->sli4_hba.nvmet_cqset) {
8967                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8968                                         "3165 Fast-path NVME CQ Set "
8969                                         "array not allocated\n");
8970                         rc = -ENOMEM;
8971                         goto out_destroy;
8972                 }
8973                 if (phba->cfg_nvmet_mrq > 1) {
8974                         rc = lpfc_cq_create_set(phba,
8975                                         phba->sli4_hba.nvmet_cqset,
8976                                         phba->sli4_hba.hba_eq,
8977                                         LPFC_WCQ, LPFC_NVMET);
8978                         if (rc) {
8979                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8980                                                 "3164 Failed setup of NVME CQ "
8981                                                 "Set, rc = 0x%x\n",
8982                                                 (uint32_t)rc);
8983                                 goto out_destroy;
8984                         }
8985                 } else {
8986                         /* Set up NVMET Receive Complete Queue */
8987                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
8988                                             phba->sli4_hba.hba_eq[0],
8989                                             LPFC_WCQ, LPFC_NVMET);
8990                         if (rc) {
8991                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8992                                                 "6089 Failed setup NVMET CQ: "
8993                                                 "rc = 0x%x\n", (uint32_t)rc);
8994                                 goto out_destroy;
8995                         }
8996                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
8997
8998                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8999                                         "6090 NVMET CQ setup: cq-id=%d, "
9000                                         "parent eq-id=%d\n",
9001                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
9002                                         phba->sli4_hba.hba_eq[0]->queue_id);
9003                 }
9004         }
9005
9006         /* Set up slow-path ELS WQ/CQ */
9007         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9008                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9009                                 "0530 ELS %s not allocated\n",
9010                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9011                 rc = -ENOMEM;
9012                 goto out_destroy;
9013         }
9014         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
9015                                         phba->sli4_hba.els_cq,
9016                                         phba->sli4_hba.els_wq,
9017                                         NULL, 0, LPFC_ELS);
9018         if (rc) {
9019                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9020                         "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9021                         (uint32_t)rc);
9022                 goto out_destroy;
9023         }
9024         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9025                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9026                         phba->sli4_hba.els_wq->queue_id,
9027                         phba->sli4_hba.els_cq->queue_id);
9028
9029         if (phba->cfg_nvme_io_channel) {
9030                 /* Set up NVME LS Complete Queue */
9031                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9032                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9033                                         "6091 LS %s not allocated\n",
9034                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9035                         rc = -ENOMEM;
9036                         goto out_destroy;
9037                 }
9038                 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
9039                                         phba->sli4_hba.nvmels_cq,
9040                                         phba->sli4_hba.nvmels_wq,
9041                                         NULL, 0, LPFC_NVME_LS);
9042                 if (rc) {
9043                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9044                                 "0529 Failed setup of NVVME LS WQ/CQ: "
9045                                 "rc = 0x%x\n", (uint32_t)rc);
9046                         goto out_destroy;
9047                 }
9048
9049                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9050                                 "6096 ELS WQ setup: wq-id=%d, "
9051                                 "parent cq-id=%d\n",
9052                                 phba->sli4_hba.nvmels_wq->queue_id,
9053                                 phba->sli4_hba.nvmels_cq->queue_id);
9054         }
9055
9056         /*
9057          * Create NVMET Receive Queue (RQ)
9058          */
9059         if (phba->nvmet_support) {
9060                 if ((!phba->sli4_hba.nvmet_cqset) ||
9061                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9062                     (!phba->sli4_hba.nvmet_mrq_data)) {
9063                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9064                                         "6130 MRQ CQ Queues not "
9065                                         "allocated\n");
9066                         rc = -ENOMEM;
9067                         goto out_destroy;
9068                 }
9069                 if (phba->cfg_nvmet_mrq > 1) {
9070                         rc = lpfc_mrq_create(phba,
9071                                              phba->sli4_hba.nvmet_mrq_hdr,
9072                                              phba->sli4_hba.nvmet_mrq_data,
9073                                              phba->sli4_hba.nvmet_cqset,
9074                                              LPFC_NVMET);
9075                         if (rc) {
9076                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9077                                                 "6098 Failed setup of NVMET "
9078                                                 "MRQ: rc = 0x%x\n",
9079                                                 (uint32_t)rc);
9080                                 goto out_destroy;
9081                         }
9082
9083                 } else {
9084                         rc = lpfc_rq_create(phba,
9085                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9086                                             phba->sli4_hba.nvmet_mrq_data[0],
9087                                             phba->sli4_hba.nvmet_cqset[0],
9088                                             LPFC_NVMET);
9089                         if (rc) {
9090                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9091                                                 "6057 Failed setup of NVMET "
9092                                                 "Receive Queue: rc = 0x%x\n",
9093                                                 (uint32_t)rc);
9094                                 goto out_destroy;
9095                         }
9096
9097                         lpfc_printf_log(
9098                                 phba, KERN_INFO, LOG_INIT,
9099                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9100                                 "dat-rq-id=%d parent cq-id=%d\n",
9101                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9102                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9103                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9104
9105                 }
9106         }
9107
9108         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9109                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9110                                 "0540 Receive Queue not allocated\n");
9111                 rc = -ENOMEM;
9112                 goto out_destroy;
9113         }
9114
9115         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9116                             phba->sli4_hba.els_cq, LPFC_USOL);
9117         if (rc) {
9118                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9119                                 "0541 Failed setup of Receive Queue: "
9120                                 "rc = 0x%x\n", (uint32_t)rc);
9121                 goto out_destroy;
9122         }
9123
9124         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9125                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9126                         "parent cq-id=%d\n",
9127                         phba->sli4_hba.hdr_rq->queue_id,
9128                         phba->sli4_hba.dat_rq->queue_id,
9129                         phba->sli4_hba.els_cq->queue_id);
9130
9131         if (phba->cfg_fof) {
9132                 rc = lpfc_fof_queue_setup(phba);
9133                 if (rc) {
9134                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9135                                         "0549 Failed setup of FOF Queues: "
9136                                         "rc = 0x%x\n", rc);
9137                         goto out_destroy;
9138                 }
9139         }
9140
9141         for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9142                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9143                                          phba->cfg_fcp_imax);
9144
9145         return 0;
9146
9147 out_destroy:
9148         lpfc_sli4_queue_unset(phba);
9149 out_error:
9150         return rc;
9151 }
9152
9153 /**
9154  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9155  * @phba: pointer to lpfc hba data structure.
9156  *
9157  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9158  * operation.
9159  *
9160  * Return codes
9161  *      0 - successful
9162  *      -ENOMEM - No available memory
9163  *      -EIO - The mailbox failed to complete successfully.
9164  **/
9165 void
9166 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9167 {
9168         int qidx;
9169
9170         /* Unset the queues created for Flash Optimized Fabric operations */
9171         if (phba->cfg_fof)
9172                 lpfc_fof_queue_destroy(phba);
9173
9174         /* Unset mailbox command work queue */
9175         if (phba->sli4_hba.mbx_wq)
9176                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9177
9178         /* Unset NVME LS work queue */
9179         if (phba->sli4_hba.nvmels_wq)
9180                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9181
9182         /* Unset ELS work queue */
9183         if (phba->sli4_hba.els_wq)
9184                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9185
9186         /* Unset unsolicited receive queue */
9187         if (phba->sli4_hba.hdr_rq)
9188                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9189                                 phba->sli4_hba.dat_rq);
9190
9191         /* Unset FCP work queue */
9192         if (phba->sli4_hba.fcp_wq)
9193                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9194                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
9195
9196         /* Unset NVME work queue */
9197         if (phba->sli4_hba.nvme_wq) {
9198                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
9199                         lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
9200         }
9201
9202         /* Unset mailbox command complete queue */
9203         if (phba->sli4_hba.mbx_cq)
9204                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9205
9206         /* Unset ELS complete queue */
9207         if (phba->sli4_hba.els_cq)
9208                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9209
9210         /* Unset NVME LS complete queue */
9211         if (phba->sli4_hba.nvmels_cq)
9212                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9213
9214         /* Unset NVME response complete queue */
9215         if (phba->sli4_hba.nvme_cq)
9216                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
9217                         lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
9218
9219         if (phba->nvmet_support) {
9220                 /* Unset NVMET MRQ queue */
9221                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9222                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9223                                 lpfc_rq_destroy(
9224                                         phba,
9225                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9226                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9227                 }
9228
9229                 /* Unset NVMET CQ Set complete queue */
9230                 if (phba->sli4_hba.nvmet_cqset) {
9231                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9232                                 lpfc_cq_destroy(
9233                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9234                 }
9235         }
9236
9237         /* Unset FCP response complete queue */
9238         if (phba->sli4_hba.fcp_cq)
9239                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9240                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
9241
9242         /* Unset fast-path event queue */
9243         if (phba->sli4_hba.hba_eq)
9244                 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
9245                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
9246 }
9247
9248 /**
9249  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9250  * @phba: pointer to lpfc hba data structure.
9251  *
9252  * This routine is invoked to allocate and set up a pool of completion queue
9253  * events. The body of the completion queue event is a completion queue entry
9254  * CQE. For now, this pool is used for the interrupt service routine to queue
9255  * the following HBA completion queue events for the worker thread to process:
9256  *   - Mailbox asynchronous events
9257  *   - Receive queue completion unsolicited events
9258  * Later, this can be used for all the slow-path events.
9259  *
9260  * Return codes
9261  *      0 - successful
9262  *      -ENOMEM - No available memory
9263  **/
9264 static int
9265 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9266 {
9267         struct lpfc_cq_event *cq_event;
9268         int i;
9269
9270         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9271                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9272                 if (!cq_event)
9273                         goto out_pool_create_fail;
9274                 list_add_tail(&cq_event->list,
9275                               &phba->sli4_hba.sp_cqe_event_pool);
9276         }
9277         return 0;
9278
9279 out_pool_create_fail:
9280         lpfc_sli4_cq_event_pool_destroy(phba);
9281         return -ENOMEM;
9282 }
9283
9284 /**
9285  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9286  * @phba: pointer to lpfc hba data structure.
9287  *
9288  * This routine is invoked to free the pool of completion queue events at
9289  * driver unload time. Note that, it is the responsibility of the driver
9290  * cleanup routine to free all the outstanding completion-queue events
9291  * allocated from this pool back into the pool before invoking this routine
9292  * to destroy the pool.
9293  **/
9294 static void
9295 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9296 {
9297         struct lpfc_cq_event *cq_event, *next_cq_event;
9298
9299         list_for_each_entry_safe(cq_event, next_cq_event,
9300                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9301                 list_del(&cq_event->list);
9302                 kfree(cq_event);
9303         }
9304 }
9305
9306 /**
9307  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9308  * @phba: pointer to lpfc hba data structure.
9309  *
9310  * This routine is the lock free version of the API invoked to allocate a
9311  * completion-queue event from the free pool.
9312  *
9313  * Return: Pointer to the newly allocated completion-queue event if successful
9314  *         NULL otherwise.
9315  **/
9316 struct lpfc_cq_event *
9317 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9318 {
9319         struct lpfc_cq_event *cq_event = NULL;
9320
9321         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9322                          struct lpfc_cq_event, list);
9323         return cq_event;
9324 }
9325
9326 /**
9327  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9328  * @phba: pointer to lpfc hba data structure.
9329  *
9330  * This routine is the lock version of the API invoked to allocate a
9331  * completion-queue event from the free pool.
9332  *
9333  * Return: Pointer to the newly allocated completion-queue event if successful
9334  *         NULL otherwise.
9335  **/
9336 struct lpfc_cq_event *
9337 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9338 {
9339         struct lpfc_cq_event *cq_event;
9340         unsigned long iflags;
9341
9342         spin_lock_irqsave(&phba->hbalock, iflags);
9343         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9344         spin_unlock_irqrestore(&phba->hbalock, iflags);
9345         return cq_event;
9346 }
9347
9348 /**
9349  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9350  * @phba: pointer to lpfc hba data structure.
9351  * @cq_event: pointer to the completion queue event to be freed.
9352  *
9353  * This routine is the lock free version of the API invoked to release a
9354  * completion-queue event back into the free pool.
9355  **/
9356 void
9357 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9358                              struct lpfc_cq_event *cq_event)
9359 {
9360         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9361 }
9362
9363 /**
9364  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9365  * @phba: pointer to lpfc hba data structure.
9366  * @cq_event: pointer to the completion queue event to be freed.
9367  *
9368  * This routine is the lock version of the API invoked to release a
9369  * completion-queue event back into the free pool.
9370  **/
9371 void
9372 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9373                            struct lpfc_cq_event *cq_event)
9374 {
9375         unsigned long iflags;
9376         spin_lock_irqsave(&phba->hbalock, iflags);
9377         __lpfc_sli4_cq_event_release(phba, cq_event);
9378         spin_unlock_irqrestore(&phba->hbalock, iflags);
9379 }
9380
9381 /**
9382  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9383  * @phba: pointer to lpfc hba data structure.
9384  *
9385  * This routine is to free all the pending completion-queue events to the
9386  * back into the free pool for device reset.
9387  **/
9388 static void
9389 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9390 {
9391         LIST_HEAD(cqelist);
9392         struct lpfc_cq_event *cqe;
9393         unsigned long iflags;
9394
9395         /* Retrieve all the pending WCQEs from pending WCQE lists */
9396         spin_lock_irqsave(&phba->hbalock, iflags);
9397         /* Pending FCP XRI abort events */
9398         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9399                          &cqelist);
9400         /* Pending ELS XRI abort events */
9401         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9402                          &cqelist);
9403         /* Pending asynnc events */
9404         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9405                          &cqelist);
9406         spin_unlock_irqrestore(&phba->hbalock, iflags);
9407
9408         while (!list_empty(&cqelist)) {
9409                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9410                 lpfc_sli4_cq_event_release(phba, cqe);
9411         }
9412 }
9413
9414 /**
9415  * lpfc_pci_function_reset - Reset pci function.
9416  * @phba: pointer to lpfc hba data structure.
9417  *
9418  * This routine is invoked to request a PCI function reset. It will destroys
9419  * all resources assigned to the PCI function which originates this request.
9420  *
9421  * Return codes
9422  *      0 - successful
9423  *      -ENOMEM - No available memory
9424  *      -EIO - The mailbox failed to complete successfully.
9425  **/
9426 int
9427 lpfc_pci_function_reset(struct lpfc_hba *phba)
9428 {
9429         LPFC_MBOXQ_t *mboxq;
9430         uint32_t rc = 0, if_type;
9431         uint32_t shdr_status, shdr_add_status;
9432         uint32_t rdy_chk;
9433         uint32_t port_reset = 0;
9434         union lpfc_sli4_cfg_shdr *shdr;
9435         struct lpfc_register reg_data;
9436         uint16_t devid;
9437
9438         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9439         switch (if_type) {
9440         case LPFC_SLI_INTF_IF_TYPE_0:
9441                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9442                                                        GFP_KERNEL);
9443                 if (!mboxq) {
9444                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9445                                         "0494 Unable to allocate memory for "
9446                                         "issuing SLI_FUNCTION_RESET mailbox "
9447                                         "command\n");
9448                         return -ENOMEM;
9449                 }
9450
9451                 /* Setup PCI function reset mailbox-ioctl command */
9452                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9453                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9454                                  LPFC_SLI4_MBX_EMBED);
9455                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9456                 shdr = (union lpfc_sli4_cfg_shdr *)
9457                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9458                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9459                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9460                                          &shdr->response);
9461                 if (rc != MBX_TIMEOUT)
9462                         mempool_free(mboxq, phba->mbox_mem_pool);
9463                 if (shdr_status || shdr_add_status || rc) {
9464                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9465                                         "0495 SLI_FUNCTION_RESET mailbox "
9466                                         "failed with status x%x add_status x%x,"
9467                                         " mbx status x%x\n",
9468                                         shdr_status, shdr_add_status, rc);
9469                         rc = -ENXIO;
9470                 }
9471                 break;
9472         case LPFC_SLI_INTF_IF_TYPE_2:
9473         case LPFC_SLI_INTF_IF_TYPE_6:
9474 wait:
9475                 /*
9476                  * Poll the Port Status Register and wait for RDY for
9477                  * up to 30 seconds. If the port doesn't respond, treat
9478                  * it as an error.
9479                  */
9480                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9481                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9482                                 STATUSregaddr, &reg_data.word0)) {
9483                                 rc = -ENODEV;
9484                                 goto out;
9485                         }
9486                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9487                                 break;
9488                         msleep(20);
9489                 }
9490
9491                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9492                         phba->work_status[0] = readl(
9493                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9494                         phba->work_status[1] = readl(
9495                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9496                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9497                                         "2890 Port not ready, port status reg "
9498                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9499                                         reg_data.word0,
9500                                         phba->work_status[0],
9501                                         phba->work_status[1]);
9502                         rc = -ENODEV;
9503                         goto out;
9504                 }
9505
9506                 if (!port_reset) {
9507                         /*
9508                          * Reset the port now
9509                          */
9510                         reg_data.word0 = 0;
9511                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
9512                                LPFC_SLIPORT_LITTLE_ENDIAN);
9513                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9514                                LPFC_SLIPORT_INIT_PORT);
9515                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9516                                CTRLregaddr);
9517                         /* flush */
9518                         pci_read_config_word(phba->pcidev,
9519                                              PCI_DEVICE_ID, &devid);
9520
9521                         port_reset = 1;
9522                         msleep(20);
9523                         goto wait;
9524                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
9525                         rc = -ENODEV;
9526                         goto out;
9527                 }
9528                 break;
9529
9530         case LPFC_SLI_INTF_IF_TYPE_1:
9531         default:
9532                 break;
9533         }
9534
9535 out:
9536         /* Catch the not-ready port failure after a port reset. */
9537         if (rc) {
9538                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9539                                 "3317 HBA not functional: IP Reset Failed "
9540                                 "try: echo fw_reset > board_mode\n");
9541                 rc = -ENODEV;
9542         }
9543
9544         return rc;
9545 }
9546
9547 /**
9548  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9549  * @phba: pointer to lpfc hba data structure.
9550  *
9551  * This routine is invoked to set up the PCI device memory space for device
9552  * with SLI-4 interface spec.
9553  *
9554  * Return codes
9555  *      0 - successful
9556  *      other values - error
9557  **/
9558 static int
9559 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9560 {
9561         struct pci_dev *pdev;
9562         unsigned long bar0map_len, bar1map_len, bar2map_len;
9563         int error = -ENODEV;
9564         uint32_t if_type;
9565
9566         /* Obtain PCI device reference */
9567         if (!phba->pcidev)
9568                 return error;
9569         else
9570                 pdev = phba->pcidev;
9571
9572         /* Set the device DMA mask size */
9573         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
9574          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
9575                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
9576                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
9577                         return error;
9578                 }
9579         }
9580
9581         /*
9582          * The BARs and register set definitions and offset locations are
9583          * dependent on the if_type.
9584          */
9585         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9586                                   &phba->sli4_hba.sli_intf.word0)) {
9587                 return error;
9588         }
9589
9590         /* There is no SLI3 failback for SLI4 devices. */
9591         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9592             LPFC_SLI_INTF_VALID) {
9593                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9594                                 "2894 SLI_INTF reg contents invalid "
9595                                 "sli_intf reg 0x%x\n",
9596                                 phba->sli4_hba.sli_intf.word0);
9597                 return error;
9598         }
9599
9600         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9601         /*
9602          * Get the bus address of SLI4 device Bar regions and the
9603          * number of bytes required by each mapping. The mapping of the
9604          * particular PCI BARs regions is dependent on the type of
9605          * SLI4 device.
9606          */
9607         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9608                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9609                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9610
9611                 /*
9612                  * Map SLI4 PCI Config Space Register base to a kernel virtual
9613                  * addr
9614                  */
9615                 phba->sli4_hba.conf_regs_memmap_p =
9616                         ioremap(phba->pci_bar0_map, bar0map_len);
9617                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9618                         dev_printk(KERN_ERR, &pdev->dev,
9619                                    "ioremap failed for SLI4 PCI config "
9620                                    "registers.\n");
9621                         goto out;
9622                 }
9623                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9624                 /* Set up BAR0 PCI config space register memory map */
9625                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9626         } else {
9627                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
9628                 bar0map_len = pci_resource_len(pdev, 1);
9629                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9630                         dev_printk(KERN_ERR, &pdev->dev,
9631                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9632                         goto out;
9633                 }
9634                 phba->sli4_hba.conf_regs_memmap_p =
9635                                 ioremap(phba->pci_bar0_map, bar0map_len);
9636                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9637                         dev_printk(KERN_ERR, &pdev->dev,
9638                                 "ioremap failed for SLI4 PCI config "
9639                                 "registers.\n");
9640                                 goto out;
9641                 }
9642                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9643         }
9644
9645         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
9646                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
9647                         /*
9648                          * Map SLI4 if type 0 HBA Control Register base to a
9649                          * kernel virtual address and setup the registers.
9650                          */
9651                         phba->pci_bar1_map = pci_resource_start(pdev,
9652                                                                 PCI_64BIT_BAR2);
9653                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9654                         phba->sli4_hba.ctrl_regs_memmap_p =
9655                                         ioremap(phba->pci_bar1_map,
9656                                                 bar1map_len);
9657                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9658                                 dev_err(&pdev->dev,
9659                                            "ioremap failed for SLI4 HBA "
9660                                             "control registers.\n");
9661                                 error = -ENOMEM;
9662                                 goto out_iounmap_conf;
9663                         }
9664                         phba->pci_bar2_memmap_p =
9665                                          phba->sli4_hba.ctrl_regs_memmap_p;
9666                         lpfc_sli4_bar1_register_memmap(phba, if_type);
9667                 } else {
9668                         error = -ENOMEM;
9669                         goto out_iounmap_conf;
9670                 }
9671         }
9672
9673         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
9674             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9675                 /*
9676                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
9677                  * virtual address and setup the registers.
9678                  */
9679                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9680                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9681                 phba->sli4_hba.drbl_regs_memmap_p =
9682                                 ioremap(phba->pci_bar1_map, bar1map_len);
9683                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
9684                         dev_err(&pdev->dev,
9685                            "ioremap failed for SLI4 HBA doorbell registers.\n");
9686                         goto out_iounmap_conf;
9687                 }
9688                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9689                 lpfc_sli4_bar1_register_memmap(phba, if_type);
9690         }
9691
9692         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
9693                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
9694                         /*
9695                          * Map SLI4 if type 0 HBA Doorbell Register base to
9696                          * a kernel virtual address and setup the registers.
9697                          */
9698                         phba->pci_bar2_map = pci_resource_start(pdev,
9699                                                                 PCI_64BIT_BAR4);
9700                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9701                         phba->sli4_hba.drbl_regs_memmap_p =
9702                                         ioremap(phba->pci_bar2_map,
9703                                                 bar2map_len);
9704                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
9705                                 dev_err(&pdev->dev,
9706                                            "ioremap failed for SLI4 HBA"
9707                                            " doorbell registers.\n");
9708                                 error = -ENOMEM;
9709                                 goto out_iounmap_ctrl;
9710                         }
9711                         phba->pci_bar4_memmap_p =
9712                                         phba->sli4_hba.drbl_regs_memmap_p;
9713                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9714                         if (error)
9715                                 goto out_iounmap_all;
9716                 } else {
9717                         error = -ENOMEM;
9718                         goto out_iounmap_all;
9719                 }
9720         }
9721
9722         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
9723             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
9724                 /*
9725                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
9726                  * virtual address and setup the registers.
9727                  */
9728                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9729                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9730                 phba->sli4_hba.dpp_regs_memmap_p =
9731                                 ioremap(phba->pci_bar2_map, bar2map_len);
9732                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
9733                         dev_err(&pdev->dev,
9734                            "ioremap failed for SLI4 HBA dpp registers.\n");
9735                         goto out_iounmap_ctrl;
9736                 }
9737                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
9738         }
9739
9740         /* Set up the EQ/CQ register handeling functions now */
9741         switch (if_type) {
9742         case LPFC_SLI_INTF_IF_TYPE_0:
9743         case LPFC_SLI_INTF_IF_TYPE_2:
9744                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
9745                 phba->sli4_hba.sli4_eq_release = lpfc_sli4_eq_release;
9746                 phba->sli4_hba.sli4_cq_release = lpfc_sli4_cq_release;
9747                 break;
9748         case LPFC_SLI_INTF_IF_TYPE_6:
9749                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
9750                 phba->sli4_hba.sli4_eq_release = lpfc_sli4_if6_eq_release;
9751                 phba->sli4_hba.sli4_cq_release = lpfc_sli4_if6_cq_release;
9752                 break;
9753         default:
9754                 break;
9755         }
9756
9757         return 0;
9758
9759 out_iounmap_all:
9760         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9761 out_iounmap_ctrl:
9762         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9763 out_iounmap_conf:
9764         iounmap(phba->sli4_hba.conf_regs_memmap_p);
9765 out:
9766         return error;
9767 }
9768
9769 /**
9770  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9771  * @phba: pointer to lpfc hba data structure.
9772  *
9773  * This routine is invoked to unset the PCI device memory space for device
9774  * with SLI-4 interface spec.
9775  **/
9776 static void
9777 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9778 {
9779         uint32_t if_type;
9780         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9781
9782         switch (if_type) {
9783         case LPFC_SLI_INTF_IF_TYPE_0:
9784                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9785                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9786                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9787                 break;
9788         case LPFC_SLI_INTF_IF_TYPE_2:
9789                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9790                 break;
9791         case LPFC_SLI_INTF_IF_TYPE_6:
9792                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9793                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9794                 break;
9795         case LPFC_SLI_INTF_IF_TYPE_1:
9796         default:
9797                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9798                            "FATAL - unsupported SLI4 interface type - %d\n",
9799                            if_type);
9800                 break;
9801         }
9802 }
9803
9804 /**
9805  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9806  * @phba: pointer to lpfc hba data structure.
9807  *
9808  * This routine is invoked to enable the MSI-X interrupt vectors to device
9809  * with SLI-3 interface specs.
9810  *
9811  * Return codes
9812  *   0 - successful
9813  *   other values - error
9814  **/
9815 static int
9816 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9817 {
9818         int rc;
9819         LPFC_MBOXQ_t *pmb;
9820
9821         /* Set up MSI-X multi-message vectors */
9822         rc = pci_alloc_irq_vectors(phba->pcidev,
9823                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9824         if (rc < 0) {
9825                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9826                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
9827                 goto vec_fail_out;
9828         }
9829
9830         /*
9831          * Assign MSI-X vectors to interrupt handlers
9832          */
9833
9834         /* vector-0 is associated to slow-path handler */
9835         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
9836                          &lpfc_sli_sp_intr_handler, 0,
9837                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
9838         if (rc) {
9839                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9840                                 "0421 MSI-X slow-path request_irq failed "
9841                                 "(%d)\n", rc);
9842                 goto msi_fail_out;
9843         }
9844
9845         /* vector-1 is associated to fast-path handler */
9846         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
9847                          &lpfc_sli_fp_intr_handler, 0,
9848                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
9849
9850         if (rc) {
9851                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9852                                 "0429 MSI-X fast-path request_irq failed "
9853                                 "(%d)\n", rc);
9854                 goto irq_fail_out;
9855         }
9856
9857         /*
9858          * Configure HBA MSI-X attention conditions to messages
9859          */
9860         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9861
9862         if (!pmb) {
9863                 rc = -ENOMEM;
9864                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9865                                 "0474 Unable to allocate memory for issuing "
9866                                 "MBOX_CONFIG_MSI command\n");
9867                 goto mem_fail_out;
9868         }
9869         rc = lpfc_config_msi(phba, pmb);
9870         if (rc)
9871                 goto mbx_fail_out;
9872         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9873         if (rc != MBX_SUCCESS) {
9874                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
9875                                 "0351 Config MSI mailbox command failed, "
9876                                 "mbxCmd x%x, mbxStatus x%x\n",
9877                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
9878                 goto mbx_fail_out;
9879         }
9880
9881         /* Free memory allocated for mailbox command */
9882         mempool_free(pmb, phba->mbox_mem_pool);
9883         return rc;
9884
9885 mbx_fail_out:
9886         /* Free memory allocated for mailbox command */
9887         mempool_free(pmb, phba->mbox_mem_pool);
9888
9889 mem_fail_out:
9890         /* free the irq already requested */
9891         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
9892
9893 irq_fail_out:
9894         /* free the irq already requested */
9895         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
9896
9897 msi_fail_out:
9898         /* Unconfigure MSI-X capability structure */
9899         pci_free_irq_vectors(phba->pcidev);
9900
9901 vec_fail_out:
9902         return rc;
9903 }
9904
9905 /**
9906  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
9907  * @phba: pointer to lpfc hba data structure.
9908  *
9909  * This routine is invoked to enable the MSI interrupt mode to device with
9910  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
9911  * enable the MSI vector. The device driver is responsible for calling the
9912  * request_irq() to register MSI vector with a interrupt the handler, which
9913  * is done in this function.
9914  *
9915  * Return codes
9916  *      0 - successful
9917  *      other values - error
9918  */
9919 static int
9920 lpfc_sli_enable_msi(struct lpfc_hba *phba)
9921 {
9922         int rc;
9923
9924         rc = pci_enable_msi(phba->pcidev);
9925         if (!rc)
9926                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9927                                 "0462 PCI enable MSI mode success.\n");
9928         else {
9929                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9930                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
9931                 return rc;
9932         }
9933
9934         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9935                          0, LPFC_DRIVER_NAME, phba);
9936         if (rc) {
9937                 pci_disable_msi(phba->pcidev);
9938                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9939                                 "0478 MSI request_irq failed (%d)\n", rc);
9940         }
9941         return rc;
9942 }
9943
9944 /**
9945  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
9946  * @phba: pointer to lpfc hba data structure.
9947  *
9948  * This routine is invoked to enable device interrupt and associate driver's
9949  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
9950  * spec. Depends on the interrupt mode configured to the driver, the driver
9951  * will try to fallback from the configured interrupt mode to an interrupt
9952  * mode which is supported by the platform, kernel, and device in the order
9953  * of:
9954  * MSI-X -> MSI -> IRQ.
9955  *
9956  * Return codes
9957  *   0 - successful
9958  *   other values - error
9959  **/
9960 static uint32_t
9961 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9962 {
9963         uint32_t intr_mode = LPFC_INTR_ERROR;
9964         int retval;
9965
9966         if (cfg_mode == 2) {
9967                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
9968                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
9969                 if (!retval) {
9970                         /* Now, try to enable MSI-X interrupt mode */
9971                         retval = lpfc_sli_enable_msix(phba);
9972                         if (!retval) {
9973                                 /* Indicate initialization to MSI-X mode */
9974                                 phba->intr_type = MSIX;
9975                                 intr_mode = 2;
9976                         }
9977                 }
9978         }
9979
9980         /* Fallback to MSI if MSI-X initialization failed */
9981         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9982                 retval = lpfc_sli_enable_msi(phba);
9983                 if (!retval) {
9984                         /* Indicate initialization to MSI mode */
9985                         phba->intr_type = MSI;
9986                         intr_mode = 1;
9987                 }
9988         }
9989
9990         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9991         if (phba->intr_type == NONE) {
9992                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9993                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9994                 if (!retval) {
9995                         /* Indicate initialization to INTx mode */
9996                         phba->intr_type = INTx;
9997                         intr_mode = 0;
9998                 }
9999         }
10000         return intr_mode;
10001 }
10002
10003 /**
10004  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10005  * @phba: pointer to lpfc hba data structure.
10006  *
10007  * This routine is invoked to disable device interrupt and disassociate the
10008  * driver's interrupt handler(s) from interrupt vector(s) to device with
10009  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10010  * release the interrupt vector(s) for the message signaled interrupt.
10011  **/
10012 static void
10013 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10014 {
10015         int nr_irqs, i;
10016
10017         if (phba->intr_type == MSIX)
10018                 nr_irqs = LPFC_MSIX_VECTORS;
10019         else
10020                 nr_irqs = 1;
10021
10022         for (i = 0; i < nr_irqs; i++)
10023                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10024         pci_free_irq_vectors(phba->pcidev);
10025
10026         /* Reset interrupt management states */
10027         phba->intr_type = NONE;
10028         phba->sli.slistat.sli_intr = 0;
10029 }
10030
10031 /**
10032  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10033  * @phba: pointer to lpfc hba data structure.
10034  * @vectors: number of msix vectors allocated.
10035  *
10036  * The routine will figure out the CPU affinity assignment for every
10037  * MSI-X vector allocated for the HBA.  The hba_eq_hdl will be updated
10038  * with a pointer to the CPU mask that defines ALL the CPUs this vector
10039  * can be associated with. If the vector can be unquely associated with
10040  * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
10041  * In addition, the CPU to IO channel mapping will be calculated
10042  * and the phba->sli4_hba.cpu_map array will reflect this.
10043  */
10044 static void
10045 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10046 {
10047         struct lpfc_vector_map_info *cpup;
10048         int index = 0;
10049         int vec = 0;
10050         int cpu;
10051 #ifdef CONFIG_X86
10052         struct cpuinfo_x86 *cpuinfo;
10053 #endif
10054
10055         /* Init cpu_map array */
10056         memset(phba->sli4_hba.cpu_map, 0xff,
10057                (sizeof(struct lpfc_vector_map_info) *
10058                phba->sli4_hba.num_present_cpu));
10059
10060         /* Update CPU map with physical id and core id of each CPU */
10061         cpup = phba->sli4_hba.cpu_map;
10062         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
10063 #ifdef CONFIG_X86
10064                 cpuinfo = &cpu_data(cpu);
10065                 cpup->phys_id = cpuinfo->phys_proc_id;
10066                 cpup->core_id = cpuinfo->cpu_core_id;
10067 #else
10068                 /* No distinction between CPUs for other platforms */
10069                 cpup->phys_id = 0;
10070                 cpup->core_id = 0;
10071 #endif
10072                 cpup->channel_id = index;  /* For now round robin */
10073                 cpup->irq = pci_irq_vector(phba->pcidev, vec);
10074                 vec++;
10075                 if (vec >= vectors)
10076                         vec = 0;
10077                 index++;
10078                 if (index >= phba->cfg_fcp_io_channel)
10079                         index = 0;
10080                 cpup++;
10081         }
10082 }
10083
10084
10085 /**
10086  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
10087  * @phba: pointer to lpfc hba data structure.
10088  *
10089  * This routine is invoked to enable the MSI-X interrupt vectors to device
10090  * with SLI-4 interface spec.
10091  *
10092  * Return codes
10093  * 0 - successful
10094  * other values - error
10095  **/
10096 static int
10097 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
10098 {
10099         int vectors, rc, index;
10100         char *name;
10101
10102         /* Set up MSI-X multi-message vectors */
10103         vectors = phba->io_channel_irqs;
10104         if (phba->cfg_fof)
10105                 vectors++;
10106
10107         rc = pci_alloc_irq_vectors(phba->pcidev,
10108                                 (phba->nvmet_support) ? 1 : 2,
10109                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
10110         if (rc < 0) {
10111                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10112                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
10113                 goto vec_fail_out;
10114         }
10115         vectors = rc;
10116
10117         /* Assign MSI-X vectors to interrupt handlers */
10118         for (index = 0; index < vectors; index++) {
10119                 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
10120                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
10121                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
10122                          LPFC_DRIVER_HANDLER_NAME"%d", index);
10123
10124                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10125                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10126                 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
10127                 if (phba->cfg_fof && (index == (vectors - 1)))
10128                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
10129                                  &lpfc_sli4_fof_intr_handler, 0,
10130                                  name,
10131                                  &phba->sli4_hba.hba_eq_hdl[index]);
10132                 else
10133                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
10134                                  &lpfc_sli4_hba_intr_handler, 0,
10135                                  name,
10136                                  &phba->sli4_hba.hba_eq_hdl[index]);
10137                 if (rc) {
10138                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10139                                         "0486 MSI-X fast-path (%d) "
10140                                         "request_irq failed (%d)\n", index, rc);
10141                         goto cfg_fail_out;
10142                 }
10143         }
10144
10145         if (phba->cfg_fof)
10146                 vectors--;
10147
10148         if (vectors != phba->io_channel_irqs) {
10149                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10150                                 "3238 Reducing IO channels to match number of "
10151                                 "MSI-X vectors, requested %d got %d\n",
10152                                 phba->io_channel_irqs, vectors);
10153                 if (phba->cfg_fcp_io_channel > vectors)
10154                         phba->cfg_fcp_io_channel = vectors;
10155                 if (phba->cfg_nvme_io_channel > vectors)
10156                         phba->cfg_nvme_io_channel = vectors;
10157                 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
10158                         phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10159                 else
10160                         phba->io_channel_irqs = phba->cfg_nvme_io_channel;
10161         }
10162         lpfc_cpu_affinity_check(phba, vectors);
10163
10164         return rc;
10165
10166 cfg_fail_out:
10167         /* free the irq already requested */
10168         for (--index; index >= 0; index--)
10169                 free_irq(pci_irq_vector(phba->pcidev, index),
10170                                 &phba->sli4_hba.hba_eq_hdl[index]);
10171
10172         /* Unconfigure MSI-X capability structure */
10173         pci_free_irq_vectors(phba->pcidev);
10174
10175 vec_fail_out:
10176         return rc;
10177 }
10178
10179 /**
10180  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
10181  * @phba: pointer to lpfc hba data structure.
10182  *
10183  * This routine is invoked to enable the MSI interrupt mode to device with
10184  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
10185  * to enable the MSI vector. The device driver is responsible for calling
10186  * the request_irq() to register MSI vector with a interrupt the handler,
10187  * which is done in this function.
10188  *
10189  * Return codes
10190  *      0 - successful
10191  *      other values - error
10192  **/
10193 static int
10194 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
10195 {
10196         int rc, index;
10197
10198         rc = pci_enable_msi(phba->pcidev);
10199         if (!rc)
10200                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10201                                 "0487 PCI enable MSI mode success.\n");
10202         else {
10203                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10204                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
10205                 return rc;
10206         }
10207
10208         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10209                          0, LPFC_DRIVER_NAME, phba);
10210         if (rc) {
10211                 pci_disable_msi(phba->pcidev);
10212                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10213                                 "0490 MSI request_irq failed (%d)\n", rc);
10214                 return rc;
10215         }
10216
10217         for (index = 0; index < phba->io_channel_irqs; index++) {
10218                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10219                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10220         }
10221
10222         if (phba->cfg_fof) {
10223                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10224                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10225         }
10226         return 0;
10227 }
10228
10229 /**
10230  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
10231  * @phba: pointer to lpfc hba data structure.
10232  *
10233  * This routine is invoked to enable device interrupt and associate driver's
10234  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
10235  * interface spec. Depends on the interrupt mode configured to the driver,
10236  * the driver will try to fallback from the configured interrupt mode to an
10237  * interrupt mode which is supported by the platform, kernel, and device in
10238  * the order of:
10239  * MSI-X -> MSI -> IRQ.
10240  *
10241  * Return codes
10242  *      0 - successful
10243  *      other values - error
10244  **/
10245 static uint32_t
10246 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10247 {
10248         uint32_t intr_mode = LPFC_INTR_ERROR;
10249         int retval, idx;
10250
10251         if (cfg_mode == 2) {
10252                 /* Preparation before conf_msi mbox cmd */
10253                 retval = 0;
10254                 if (!retval) {
10255                         /* Now, try to enable MSI-X interrupt mode */
10256                         retval = lpfc_sli4_enable_msix(phba);
10257                         if (!retval) {
10258                                 /* Indicate initialization to MSI-X mode */
10259                                 phba->intr_type = MSIX;
10260                                 intr_mode = 2;
10261                         }
10262                 }
10263         }
10264
10265         /* Fallback to MSI if MSI-X initialization failed */
10266         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10267                 retval = lpfc_sli4_enable_msi(phba);
10268                 if (!retval) {
10269                         /* Indicate initialization to MSI mode */
10270                         phba->intr_type = MSI;
10271                         intr_mode = 1;
10272                 }
10273         }
10274
10275         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10276         if (phba->intr_type == NONE) {
10277                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10278                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10279                 if (!retval) {
10280                         struct lpfc_hba_eq_hdl *eqhdl;
10281
10282                         /* Indicate initialization to INTx mode */
10283                         phba->intr_type = INTx;
10284                         intr_mode = 0;
10285
10286                         for (idx = 0; idx < phba->io_channel_irqs; idx++) {
10287                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10288                                 eqhdl->idx = idx;
10289                                 eqhdl->phba = phba;
10290                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
10291                         }
10292                         if (phba->cfg_fof) {
10293                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10294                                 eqhdl->idx = idx;
10295                                 eqhdl->phba = phba;
10296                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
10297                         }
10298                 }
10299         }
10300         return intr_mode;
10301 }
10302
10303 /**
10304  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
10305  * @phba: pointer to lpfc hba data structure.
10306  *
10307  * This routine is invoked to disable device interrupt and disassociate
10308  * the driver's interrupt handler(s) from interrupt vector(s) to device
10309  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
10310  * will release the interrupt vector(s) for the message signaled interrupt.
10311  **/
10312 static void
10313 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
10314 {
10315         /* Disable the currently initialized interrupt mode */
10316         if (phba->intr_type == MSIX) {
10317                 int index;
10318
10319                 /* Free up MSI-X multi-message vectors */
10320                 for (index = 0; index < phba->io_channel_irqs; index++)
10321                         free_irq(pci_irq_vector(phba->pcidev, index),
10322                                         &phba->sli4_hba.hba_eq_hdl[index]);
10323
10324                 if (phba->cfg_fof)
10325                         free_irq(pci_irq_vector(phba->pcidev, index),
10326                                         &phba->sli4_hba.hba_eq_hdl[index]);
10327         } else {
10328                 free_irq(phba->pcidev->irq, phba);
10329         }
10330
10331         pci_free_irq_vectors(phba->pcidev);
10332
10333         /* Reset interrupt management states */
10334         phba->intr_type = NONE;
10335         phba->sli.slistat.sli_intr = 0;
10336 }
10337
10338 /**
10339  * lpfc_unset_hba - Unset SLI3 hba device initialization
10340  * @phba: pointer to lpfc hba data structure.
10341  *
10342  * This routine is invoked to unset the HBA device initialization steps to
10343  * a device with SLI-3 interface spec.
10344  **/
10345 static void
10346 lpfc_unset_hba(struct lpfc_hba *phba)
10347 {
10348         struct lpfc_vport *vport = phba->pport;
10349         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
10350
10351         spin_lock_irq(shost->host_lock);
10352         vport->load_flag |= FC_UNLOADING;
10353         spin_unlock_irq(shost->host_lock);
10354
10355         kfree(phba->vpi_bmask);
10356         kfree(phba->vpi_ids);
10357
10358         lpfc_stop_hba_timers(phba);
10359
10360         phba->pport->work_port_events = 0;
10361
10362         lpfc_sli_hba_down(phba);
10363
10364         lpfc_sli_brdrestart(phba);
10365
10366         lpfc_sli_disable_intr(phba);
10367
10368         return;
10369 }
10370
10371 /**
10372  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
10373  * @phba: Pointer to HBA context object.
10374  *
10375  * This function is called in the SLI4 code path to wait for completion
10376  * of device's XRIs exchange busy. It will check the XRI exchange busy
10377  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
10378  * that, it will check the XRI exchange busy on outstanding FCP and ELS
10379  * I/Os every 30 seconds, log error message, and wait forever. Only when
10380  * all XRI exchange busy complete, the driver unload shall proceed with
10381  * invoking the function reset ioctl mailbox command to the CNA and the
10382  * the rest of the driver unload resource release.
10383  **/
10384 static void
10385 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
10386 {
10387         int wait_time = 0;
10388         int nvme_xri_cmpl = 1;
10389         int nvmet_xri_cmpl = 1;
10390         int fcp_xri_cmpl = 1;
10391         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10392
10393         /* Driver just aborted IOs during the hba_unset process.  Pause
10394          * here to give the HBA time to complete the IO and get entries
10395          * into the abts lists.
10396          */
10397         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
10398
10399         /* Wait for NVME pending IO to flush back to transport. */
10400         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
10401                 lpfc_nvme_wait_for_io_drain(phba);
10402
10403         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10404                 fcp_xri_cmpl =
10405                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
10406         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10407                 nvme_xri_cmpl =
10408                         list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
10409                 nvmet_xri_cmpl =
10410                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10411         }
10412
10413         while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
10414                !nvmet_xri_cmpl) {
10415                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10416                         if (!nvmet_xri_cmpl)
10417                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10418                                                 "6424 NVMET XRI exchange busy "
10419                                                 "wait time: %d seconds.\n",
10420                                                 wait_time/1000);
10421                         if (!nvme_xri_cmpl)
10422                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10423                                                 "6100 NVME XRI exchange busy "
10424                                                 "wait time: %d seconds.\n",
10425                                                 wait_time/1000);
10426                         if (!fcp_xri_cmpl)
10427                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10428                                                 "2877 FCP XRI exchange busy "
10429                                                 "wait time: %d seconds.\n",
10430                                                 wait_time/1000);
10431                         if (!els_xri_cmpl)
10432                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10433                                                 "2878 ELS XRI exchange busy "
10434                                                 "wait time: %d seconds.\n",
10435                                                 wait_time/1000);
10436                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
10437                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
10438                 } else {
10439                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
10440                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
10441                 }
10442                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10443                         nvme_xri_cmpl = list_empty(
10444                                 &phba->sli4_hba.lpfc_abts_nvme_buf_list);
10445                         nvmet_xri_cmpl = list_empty(
10446                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10447                 }
10448
10449                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10450                         fcp_xri_cmpl = list_empty(
10451                                 &phba->sli4_hba.lpfc_abts_scsi_buf_list);
10452
10453                 els_xri_cmpl =
10454                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10455
10456         }
10457 }
10458
10459 /**
10460  * lpfc_sli4_hba_unset - Unset the fcoe hba
10461  * @phba: Pointer to HBA context object.
10462  *
10463  * This function is called in the SLI4 code path to reset the HBA's FCoE
10464  * function. The caller is not required to hold any lock. This routine
10465  * issues PCI function reset mailbox command to reset the FCoE function.
10466  * At the end of the function, it calls lpfc_hba_down_post function to
10467  * free any pending commands.
10468  **/
10469 static void
10470 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10471 {
10472         int wait_cnt = 0;
10473         LPFC_MBOXQ_t *mboxq;
10474         struct pci_dev *pdev = phba->pcidev;
10475
10476         lpfc_stop_hba_timers(phba);
10477         phba->sli4_hba.intr_enable = 0;
10478
10479         /*
10480          * Gracefully wait out the potential current outstanding asynchronous
10481          * mailbox command.
10482          */
10483
10484         /* First, block any pending async mailbox command from posted */
10485         spin_lock_irq(&phba->hbalock);
10486         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10487         spin_unlock_irq(&phba->hbalock);
10488         /* Now, trying to wait it out if we can */
10489         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10490                 msleep(10);
10491                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10492                         break;
10493         }
10494         /* Forcefully release the outstanding mailbox command if timed out */
10495         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10496                 spin_lock_irq(&phba->hbalock);
10497                 mboxq = phba->sli.mbox_active;
10498                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10499                 __lpfc_mbox_cmpl_put(phba, mboxq);
10500                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10501                 phba->sli.mbox_active = NULL;
10502                 spin_unlock_irq(&phba->hbalock);
10503         }
10504
10505         /* Abort all iocbs associated with the hba */
10506         lpfc_sli_hba_iocb_abort(phba);
10507
10508         /* Wait for completion of device XRI exchange busy */
10509         lpfc_sli4_xri_exchange_busy_wait(phba);
10510
10511         /* Disable PCI subsystem interrupt */
10512         lpfc_sli4_disable_intr(phba);
10513
10514         /* Disable SR-IOV if enabled */
10515         if (phba->cfg_sriov_nr_virtfn)
10516                 pci_disable_sriov(pdev);
10517
10518         /* Stop kthread signal shall trigger work_done one more time */
10519         kthread_stop(phba->worker_thread);
10520
10521         /* Disable FW logging to host memory */
10522         writel(LPFC_CTL_PDEV_CTL_DDL_RAS,
10523                phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
10524
10525         /* Free RAS DMA memory */
10526         if (phba->ras_fwlog.ras_enabled == true)
10527                 lpfc_sli4_ras_dma_free(phba);
10528
10529         /* Unset the queues shared with the hardware then release all
10530          * allocated resources.
10531          */
10532         lpfc_sli4_queue_unset(phba);
10533         lpfc_sli4_queue_destroy(phba);
10534
10535         /* Reset SLI4 HBA FCoE function */
10536         lpfc_pci_function_reset(phba);
10537
10538         /* Stop the SLI4 device port */
10539         phba->pport->work_port_events = 0;
10540 }
10541
10542  /**
10543  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
10544  * @phba: Pointer to HBA context object.
10545  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10546  *
10547  * This function is called in the SLI4 code path to read the port's
10548  * sli4 capabilities.
10549  *
10550  * This function may be be called from any context that can block-wait
10551  * for the completion.  The expectation is that this routine is called
10552  * typically from probe_one or from the online routine.
10553  **/
10554 int
10555 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10556 {
10557         int rc;
10558         struct lpfc_mqe *mqe;
10559         struct lpfc_pc_sli4_params *sli4_params;
10560         uint32_t mbox_tmo;
10561
10562         rc = 0;
10563         mqe = &mboxq->u.mqe;
10564
10565         /* Read the port's SLI4 Parameters port capabilities */
10566         lpfc_pc_sli4_params(mboxq);
10567         if (!phba->sli4_hba.intr_enable)
10568                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10569         else {
10570                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10571                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10572         }
10573
10574         if (unlikely(rc))
10575                 return 1;
10576
10577         sli4_params = &phba->sli4_hba.pc_sli4_params;
10578         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
10579         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
10580         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
10581         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
10582                                              &mqe->un.sli4_params);
10583         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
10584                                              &mqe->un.sli4_params);
10585         sli4_params->proto_types = mqe->un.sli4_params.word3;
10586         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
10587         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
10588         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
10589         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
10590         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
10591         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
10592         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
10593         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
10594         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
10595         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
10596         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
10597         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
10598         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
10599         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
10600         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
10601         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
10602         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
10603         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
10604         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
10605         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
10606
10607         /* Make sure that sge_supp_len can be handled by the driver */
10608         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10609                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10610
10611         return rc;
10612 }
10613
10614 /**
10615  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10616  * @phba: Pointer to HBA context object.
10617  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10618  *
10619  * This function is called in the SLI4 code path to read the port's
10620  * sli4 capabilities.
10621  *
10622  * This function may be be called from any context that can block-wait
10623  * for the completion.  The expectation is that this routine is called
10624  * typically from probe_one or from the online routine.
10625  **/
10626 int
10627 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10628 {
10629         int rc;
10630         struct lpfc_mqe *mqe = &mboxq->u.mqe;
10631         struct lpfc_pc_sli4_params *sli4_params;
10632         uint32_t mbox_tmo;
10633         int length;
10634         bool exp_wqcq_pages = true;
10635         struct lpfc_sli4_parameters *mbx_sli4_parameters;
10636
10637         /*
10638          * By default, the driver assumes the SLI4 port requires RPI
10639          * header postings.  The SLI4_PARAM response will correct this
10640          * assumption.
10641          */
10642         phba->sli4_hba.rpi_hdrs_in_use = 1;
10643
10644         /* Read the port's SLI4 Config Parameters */
10645         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10646                   sizeof(struct lpfc_sli4_cfg_mhdr));
10647         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10648                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10649                          length, LPFC_SLI4_MBX_EMBED);
10650         if (!phba->sli4_hba.intr_enable)
10651                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10652         else {
10653                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10654                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10655         }
10656         if (unlikely(rc))
10657                 return rc;
10658         sli4_params = &phba->sli4_hba.pc_sli4_params;
10659         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10660         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10661         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10662         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10663         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10664                                              mbx_sli4_parameters);
10665         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10666                                              mbx_sli4_parameters);
10667         if (bf_get(cfg_phwq, mbx_sli4_parameters))
10668                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10669         else
10670                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10671         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10672         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
10673         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10674         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10675         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10676         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10677         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10678         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
10679         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
10680         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10681         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
10682         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10683                                             mbx_sli4_parameters);
10684         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10685         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10686                                            mbx_sli4_parameters);
10687         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10688         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10689         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10690                               bf_get(cfg_xib, mbx_sli4_parameters));
10691
10692         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10693             !phba->nvme_support) {
10694                 phba->nvme_support = 0;
10695                 phba->nvmet_support = 0;
10696                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF;
10697                 phba->cfg_nvme_io_channel = 0;
10698                 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10699                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10700                                 "6101 Disabling NVME support: "
10701                                 "Not supported by firmware: %d %d\n",
10702                                 bf_get(cfg_nvme, mbx_sli4_parameters),
10703                                 bf_get(cfg_xib, mbx_sli4_parameters));
10704
10705                 /* If firmware doesn't support NVME, just use SCSI support */
10706                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10707                         return -ENODEV;
10708                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10709         }
10710
10711         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
10712         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10713             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
10714                 phba->cfg_enable_pbde = 0;
10715
10716         /*
10717          * To support Suppress Response feature we must satisfy 3 conditions.
10718          * lpfc_suppress_rsp module parameter must be set (default).
10719          * In SLI4-Parameters Descriptor:
10720          * Extended Inline Buffers (XIB) must be supported.
10721          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
10722          * (double negative).
10723          */
10724         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
10725             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
10726                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10727         else
10728                 phba->cfg_suppress_rsp = 0;
10729
10730         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
10731                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
10732
10733         /* Make sure that sge_supp_len can be handled by the driver */
10734         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10735                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10736
10737         /*
10738          * Check whether the adapter supports an embedded copy of the
10739          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
10740          * to use this option, 128-byte WQEs must be used.
10741          */
10742         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10743                 phba->fcp_embed_io = 1;
10744         else
10745                 phba->fcp_embed_io = 0;
10746
10747         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
10748                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
10749                         bf_get(cfg_xib, mbx_sli4_parameters),
10750                         phba->cfg_enable_pbde,
10751                         phba->fcp_embed_io, phba->nvme_support,
10752                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
10753
10754         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
10755             LPFC_SLI_INTF_IF_TYPE_2) &&
10756             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
10757                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
10758                 exp_wqcq_pages = false;
10759
10760         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
10761             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
10762             exp_wqcq_pages &&
10763             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
10764                 phba->enab_exp_wqcq_pages = 1;
10765         else
10766                 phba->enab_exp_wqcq_pages = 0;
10767         /*
10768          * Check if the SLI port supports MDS Diagnostics
10769          */
10770         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10771                 phba->mds_diags_support = 1;
10772         else
10773                 phba->mds_diags_support = 0;
10774
10775         return 0;
10776 }
10777
10778 /**
10779  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10780  * @pdev: pointer to PCI device
10781  * @pid: pointer to PCI device identifier
10782  *
10783  * This routine is to be called to attach a device with SLI-3 interface spec
10784  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10785  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10786  * information of the device and driver to see if the driver state that it can
10787  * support this kind of device. If the match is successful, the driver core
10788  * invokes this routine. If this routine determines it can claim the HBA, it
10789  * does all the initialization that it needs to do to handle the HBA properly.
10790  *
10791  * Return code
10792  *      0 - driver can claim the device
10793  *      negative value - driver can not claim the device
10794  **/
10795 static int
10796 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10797 {
10798         struct lpfc_hba   *phba;
10799         struct lpfc_vport *vport = NULL;
10800         struct Scsi_Host  *shost = NULL;
10801         int error;
10802         uint32_t cfg_mode, intr_mode;
10803
10804         /* Allocate memory for HBA structure */
10805         phba = lpfc_hba_alloc(pdev);
10806         if (!phba)
10807                 return -ENOMEM;
10808
10809         /* Perform generic PCI device enabling operation */
10810         error = lpfc_enable_pci_dev(phba);
10811         if (error)
10812                 goto out_free_phba;
10813
10814         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
10815         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10816         if (error)
10817                 goto out_disable_pci_dev;
10818
10819         /* Set up SLI-3 specific device PCI memory space */
10820         error = lpfc_sli_pci_mem_setup(phba);
10821         if (error) {
10822                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10823                                 "1402 Failed to set up pci memory space.\n");
10824                 goto out_disable_pci_dev;
10825         }
10826
10827         /* Set up SLI-3 specific device driver resources */
10828         error = lpfc_sli_driver_resource_setup(phba);
10829         if (error) {
10830                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10831                                 "1404 Failed to set up driver resource.\n");
10832                 goto out_unset_pci_mem_s3;
10833         }
10834
10835         /* Initialize and populate the iocb list per host */
10836
10837         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
10838         if (error) {
10839                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10840                                 "1405 Failed to initialize iocb list.\n");
10841                 goto out_unset_driver_resource_s3;
10842         }
10843
10844         /* Set up common device driver resources */
10845         error = lpfc_setup_driver_resource_phase2(phba);
10846         if (error) {
10847                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10848                                 "1406 Failed to set up driver resource.\n");
10849                 goto out_free_iocb_list;
10850         }
10851
10852         /* Get the default values for Model Name and Description */
10853         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10854
10855         /* Create SCSI host to the physical port */
10856         error = lpfc_create_shost(phba);
10857         if (error) {
10858                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10859                                 "1407 Failed to create scsi host.\n");
10860                 goto out_unset_driver_resource;
10861         }
10862
10863         /* Configure sysfs attributes */
10864         vport = phba->pport;
10865         error = lpfc_alloc_sysfs_attr(vport);
10866         if (error) {
10867                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10868                                 "1476 Failed to allocate sysfs attr\n");
10869                 goto out_destroy_shost;
10870         }
10871
10872         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10873         /* Now, trying to enable interrupt and bring up the device */
10874         cfg_mode = phba->cfg_use_msi;
10875         while (true) {
10876                 /* Put device to a known state before enabling interrupt */
10877                 lpfc_stop_port(phba);
10878                 /* Configure and enable interrupt */
10879                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
10880                 if (intr_mode == LPFC_INTR_ERROR) {
10881                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10882                                         "0431 Failed to enable interrupt.\n");
10883                         error = -ENODEV;
10884                         goto out_free_sysfs_attr;
10885                 }
10886                 /* SLI-3 HBA setup */
10887                 if (lpfc_sli_hba_setup(phba)) {
10888                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10889                                         "1477 Failed to set up hba\n");
10890                         error = -ENODEV;
10891                         goto out_remove_device;
10892                 }
10893
10894                 /* Wait 50ms for the interrupts of previous mailbox commands */
10895                 msleep(50);
10896                 /* Check active interrupts on message signaled interrupts */
10897                 if (intr_mode == 0 ||
10898                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
10899                         /* Log the current active interrupt mode */
10900                         phba->intr_mode = intr_mode;
10901                         lpfc_log_intr_mode(phba, intr_mode);
10902                         break;
10903                 } else {
10904                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10905                                         "0447 Configure interrupt mode (%d) "
10906                                         "failed active interrupt test.\n",
10907                                         intr_mode);
10908                         /* Disable the current interrupt mode */
10909                         lpfc_sli_disable_intr(phba);
10910                         /* Try next level of interrupt mode */
10911                         cfg_mode = --intr_mode;
10912                 }
10913         }
10914
10915         /* Perform post initialization setup */
10916         lpfc_post_init_setup(phba);
10917
10918         /* Check if there are static vports to be created. */
10919         lpfc_create_static_vport(phba);
10920
10921         return 0;
10922
10923 out_remove_device:
10924         lpfc_unset_hba(phba);
10925 out_free_sysfs_attr:
10926         lpfc_free_sysfs_attr(vport);
10927 out_destroy_shost:
10928         lpfc_destroy_shost(phba);
10929 out_unset_driver_resource:
10930         lpfc_unset_driver_resource_phase2(phba);
10931 out_free_iocb_list:
10932         lpfc_free_iocb_list(phba);
10933 out_unset_driver_resource_s3:
10934         lpfc_sli_driver_resource_unset(phba);
10935 out_unset_pci_mem_s3:
10936         lpfc_sli_pci_mem_unset(phba);
10937 out_disable_pci_dev:
10938         lpfc_disable_pci_dev(phba);
10939         if (shost)
10940                 scsi_host_put(shost);
10941 out_free_phba:
10942         lpfc_hba_free(phba);
10943         return error;
10944 }
10945
10946 /**
10947  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
10948  * @pdev: pointer to PCI device
10949  *
10950  * This routine is to be called to disattach a device with SLI-3 interface
10951  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10952  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10953  * device to be removed from the PCI subsystem properly.
10954  **/
10955 static void
10956 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
10957 {
10958         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
10959         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10960         struct lpfc_vport **vports;
10961         struct lpfc_hba   *phba = vport->phba;
10962         int i;
10963
10964         spin_lock_irq(&phba->hbalock);
10965         vport->load_flag |= FC_UNLOADING;
10966         spin_unlock_irq(&phba->hbalock);
10967
10968         lpfc_free_sysfs_attr(vport);
10969
10970         /* Release all the vports against this physical port */
10971         vports = lpfc_create_vport_work_array(phba);
10972         if (vports != NULL)
10973                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10974                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10975                                 continue;
10976                         fc_vport_terminate(vports[i]->fc_vport);
10977                 }
10978         lpfc_destroy_vport_work_array(phba, vports);
10979
10980         /* Remove FC host and then SCSI host with the physical port */
10981         fc_remove_host(shost);
10982         scsi_remove_host(shost);
10983
10984         lpfc_cleanup(vport);
10985
10986         /*
10987          * Bring down the SLI Layer. This step disable all interrupts,
10988          * clears the rings, discards all mailbox commands, and resets
10989          * the HBA.
10990          */
10991
10992         /* HBA interrupt will be disabled after this call */
10993         lpfc_sli_hba_down(phba);
10994         /* Stop kthread signal shall trigger work_done one more time */
10995         kthread_stop(phba->worker_thread);
10996         /* Final cleanup of txcmplq and reset the HBA */
10997         lpfc_sli_brdrestart(phba);
10998
10999         kfree(phba->vpi_bmask);
11000         kfree(phba->vpi_ids);
11001
11002         lpfc_stop_hba_timers(phba);
11003         spin_lock_irq(&phba->port_list_lock);
11004         list_del_init(&vport->listentry);
11005         spin_unlock_irq(&phba->port_list_lock);
11006
11007         lpfc_debugfs_terminate(vport);
11008
11009         /* Disable SR-IOV if enabled */
11010         if (phba->cfg_sriov_nr_virtfn)
11011                 pci_disable_sriov(pdev);
11012
11013         /* Disable interrupt */
11014         lpfc_sli_disable_intr(phba);
11015
11016         scsi_host_put(shost);
11017
11018         /*
11019          * Call scsi_free before mem_free since scsi bufs are released to their
11020          * corresponding pools here.
11021          */
11022         lpfc_scsi_free(phba);
11023         lpfc_mem_free_all(phba);
11024
11025         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
11026                           phba->hbqslimp.virt, phba->hbqslimp.phys);
11027
11028         /* Free resources associated with SLI2 interface */
11029         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
11030                           phba->slim2p.virt, phba->slim2p.phys);
11031
11032         /* unmap adapter SLIM and Control Registers */
11033         iounmap(phba->ctrl_regs_memmap_p);
11034         iounmap(phba->slim_memmap_p);
11035
11036         lpfc_hba_free(phba);
11037
11038         pci_release_mem_regions(pdev);
11039         pci_disable_device(pdev);
11040 }
11041
11042 /**
11043  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
11044  * @pdev: pointer to PCI device
11045  * @msg: power management message
11046  *
11047  * This routine is to be called from the kernel's PCI subsystem to support
11048  * system Power Management (PM) to device with SLI-3 interface spec. When
11049  * PM invokes this method, it quiesces the device by stopping the driver's
11050  * worker thread for the device, turning off device's interrupt and DMA,
11051  * and bring the device offline. Note that as the driver implements the
11052  * minimum PM requirements to a power-aware driver's PM support for the
11053  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11054  * to the suspend() method call will be treated as SUSPEND and the driver will
11055  * fully reinitialize its device during resume() method call, the driver will
11056  * set device to PCI_D3hot state in PCI config space instead of setting it
11057  * according to the @msg provided by the PM.
11058  *
11059  * Return code
11060  *      0 - driver suspended the device
11061  *      Error otherwise
11062  **/
11063 static int
11064 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
11065 {
11066         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11067         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11068
11069         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11070                         "0473 PCI device Power Management suspend.\n");
11071
11072         /* Bring down the device */
11073         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11074         lpfc_offline(phba);
11075         kthread_stop(phba->worker_thread);
11076
11077         /* Disable interrupt from device */
11078         lpfc_sli_disable_intr(phba);
11079
11080         /* Save device state to PCI config space */
11081         pci_save_state(pdev);
11082         pci_set_power_state(pdev, PCI_D3hot);
11083
11084         return 0;
11085 }
11086
11087 /**
11088  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
11089  * @pdev: pointer to PCI device
11090  *
11091  * This routine is to be called from the kernel's PCI subsystem to support
11092  * system Power Management (PM) to device with SLI-3 interface spec. When PM
11093  * invokes this method, it restores the device's PCI config space state and
11094  * fully reinitializes the device and brings it online. Note that as the
11095  * driver implements the minimum PM requirements to a power-aware driver's
11096  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
11097  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
11098  * driver will fully reinitialize its device during resume() method call,
11099  * the device will be set to PCI_D0 directly in PCI config space before
11100  * restoring the state.
11101  *
11102  * Return code
11103  *      0 - driver suspended the device
11104  *      Error otherwise
11105  **/
11106 static int
11107 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
11108 {
11109         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11110         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11111         uint32_t intr_mode;
11112         int error;
11113
11114         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11115                         "0452 PCI device Power Management resume.\n");
11116
11117         /* Restore device state from PCI config space */
11118         pci_set_power_state(pdev, PCI_D0);
11119         pci_restore_state(pdev);
11120
11121         /*
11122          * As the new kernel behavior of pci_restore_state() API call clears
11123          * device saved_state flag, need to save the restored state again.
11124          */
11125         pci_save_state(pdev);
11126
11127         if (pdev->is_busmaster)
11128                 pci_set_master(pdev);
11129
11130         /* Startup the kernel thread for this host adapter. */
11131         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11132                                         "lpfc_worker_%d", phba->brd_no);
11133         if (IS_ERR(phba->worker_thread)) {
11134                 error = PTR_ERR(phba->worker_thread);
11135                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11136                                 "0434 PM resume failed to start worker "
11137                                 "thread: error=x%x.\n", error);
11138                 return error;
11139         }
11140
11141         /* Configure and enable interrupt */
11142         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11143         if (intr_mode == LPFC_INTR_ERROR) {
11144                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11145                                 "0430 PM resume Failed to enable interrupt\n");
11146                 return -EIO;
11147         } else
11148                 phba->intr_mode = intr_mode;
11149
11150         /* Restart HBA and bring it online */
11151         lpfc_sli_brdrestart(phba);
11152         lpfc_online(phba);
11153
11154         /* Log the current active interrupt mode */
11155         lpfc_log_intr_mode(phba, phba->intr_mode);
11156
11157         return 0;
11158 }
11159
11160 /**
11161  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
11162  * @phba: pointer to lpfc hba data structure.
11163  *
11164  * This routine is called to prepare the SLI3 device for PCI slot recover. It
11165  * aborts all the outstanding SCSI I/Os to the pci device.
11166  **/
11167 static void
11168 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
11169 {
11170         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11171                         "2723 PCI channel I/O abort preparing for recovery\n");
11172
11173         /*
11174          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11175          * and let the SCSI mid-layer to retry them to recover.
11176          */
11177         lpfc_sli_abort_fcp_rings(phba);
11178 }
11179
11180 /**
11181  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
11182  * @phba: pointer to lpfc hba data structure.
11183  *
11184  * This routine is called to prepare the SLI3 device for PCI slot reset. It
11185  * disables the device interrupt and pci device, and aborts the internal FCP
11186  * pending I/Os.
11187  **/
11188 static void
11189 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
11190 {
11191         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11192                         "2710 PCI channel disable preparing for reset\n");
11193
11194         /* Block any management I/Os to the device */
11195         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
11196
11197         /* Block all SCSI devices' I/Os on the host */
11198         lpfc_scsi_dev_block(phba);
11199
11200         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11201         lpfc_sli_flush_fcp_rings(phba);
11202
11203         /* stop all timers */
11204         lpfc_stop_hba_timers(phba);
11205
11206         /* Disable interrupt and pci device */
11207         lpfc_sli_disable_intr(phba);
11208         pci_disable_device(phba->pcidev);
11209 }
11210
11211 /**
11212  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
11213  * @phba: pointer to lpfc hba data structure.
11214  *
11215  * This routine is called to prepare the SLI3 device for PCI slot permanently
11216  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11217  * pending I/Os.
11218  **/
11219 static void
11220 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11221 {
11222         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11223                         "2711 PCI channel permanent disable for failure\n");
11224         /* Block all SCSI devices' I/Os on the host */
11225         lpfc_scsi_dev_block(phba);
11226
11227         /* stop all timers */
11228         lpfc_stop_hba_timers(phba);
11229
11230         /* Clean up all driver's outstanding SCSI I/Os */
11231         lpfc_sli_flush_fcp_rings(phba);
11232 }
11233
11234 /**
11235  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
11236  * @pdev: pointer to PCI device.
11237  * @state: the current PCI connection state.
11238  *
11239  * This routine is called from the PCI subsystem for I/O error handling to
11240  * device with SLI-3 interface spec. This function is called by the PCI
11241  * subsystem after a PCI bus error affecting this device has been detected.
11242  * When this function is invoked, it will need to stop all the I/Os and
11243  * interrupt(s) to the device. Once that is done, it will return
11244  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
11245  * as desired.
11246  *
11247  * Return codes
11248  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
11249  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11250  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11251  **/
11252 static pci_ers_result_t
11253 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
11254 {
11255         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11256         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11257
11258         switch (state) {
11259         case pci_channel_io_normal:
11260                 /* Non-fatal error, prepare for recovery */
11261                 lpfc_sli_prep_dev_for_recover(phba);
11262                 return PCI_ERS_RESULT_CAN_RECOVER;
11263         case pci_channel_io_frozen:
11264                 /* Fatal error, prepare for slot reset */
11265                 lpfc_sli_prep_dev_for_reset(phba);
11266                 return PCI_ERS_RESULT_NEED_RESET;
11267         case pci_channel_io_perm_failure:
11268                 /* Permanent failure, prepare for device down */
11269                 lpfc_sli_prep_dev_for_perm_failure(phba);
11270                 return PCI_ERS_RESULT_DISCONNECT;
11271         default:
11272                 /* Unknown state, prepare and request slot reset */
11273                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11274                                 "0472 Unknown PCI error state: x%x\n", state);
11275                 lpfc_sli_prep_dev_for_reset(phba);
11276                 return PCI_ERS_RESULT_NEED_RESET;
11277         }
11278 }
11279
11280 /**
11281  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
11282  * @pdev: pointer to PCI device.
11283  *
11284  * This routine is called from the PCI subsystem for error handling to
11285  * device with SLI-3 interface spec. This is called after PCI bus has been
11286  * reset to restart the PCI card from scratch, as if from a cold-boot.
11287  * During the PCI subsystem error recovery, after driver returns
11288  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11289  * recovery and then call this routine before calling the .resume method
11290  * to recover the device. This function will initialize the HBA device,
11291  * enable the interrupt, but it will just put the HBA to offline state
11292  * without passing any I/O traffic.
11293  *
11294  * Return codes
11295  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11296  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11297  */
11298 static pci_ers_result_t
11299 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
11300 {
11301         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11302         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11303         struct lpfc_sli *psli = &phba->sli;
11304         uint32_t intr_mode;
11305
11306         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11307         if (pci_enable_device_mem(pdev)) {
11308                 printk(KERN_ERR "lpfc: Cannot re-enable "
11309                         "PCI device after reset.\n");
11310                 return PCI_ERS_RESULT_DISCONNECT;
11311         }
11312
11313         pci_restore_state(pdev);
11314
11315         /*
11316          * As the new kernel behavior of pci_restore_state() API call clears
11317          * device saved_state flag, need to save the restored state again.
11318          */
11319         pci_save_state(pdev);
11320
11321         if (pdev->is_busmaster)
11322                 pci_set_master(pdev);
11323
11324         spin_lock_irq(&phba->hbalock);
11325         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11326         spin_unlock_irq(&phba->hbalock);
11327
11328         /* Configure and enable interrupt */
11329         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11330         if (intr_mode == LPFC_INTR_ERROR) {
11331                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11332                                 "0427 Cannot re-enable interrupt after "
11333                                 "slot reset.\n");
11334                 return PCI_ERS_RESULT_DISCONNECT;
11335         } else
11336                 phba->intr_mode = intr_mode;
11337
11338         /* Take device offline, it will perform cleanup */
11339         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11340         lpfc_offline(phba);
11341         lpfc_sli_brdrestart(phba);
11342
11343         /* Log the current active interrupt mode */
11344         lpfc_log_intr_mode(phba, phba->intr_mode);
11345
11346         return PCI_ERS_RESULT_RECOVERED;
11347 }
11348
11349 /**
11350  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
11351  * @pdev: pointer to PCI device
11352  *
11353  * This routine is called from the PCI subsystem for error handling to device
11354  * with SLI-3 interface spec. It is called when kernel error recovery tells
11355  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11356  * error recovery. After this call, traffic can start to flow from this device
11357  * again.
11358  */
11359 static void
11360 lpfc_io_resume_s3(struct pci_dev *pdev)
11361 {
11362         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11363         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11364
11365         /* Bring device online, it will be no-op for non-fatal error resume */
11366         lpfc_online(phba);
11367 }
11368
11369 /**
11370  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
11371  * @phba: pointer to lpfc hba data structure.
11372  *
11373  * returns the number of ELS/CT IOCBs to reserve
11374  **/
11375 int
11376 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
11377 {
11378         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
11379
11380         if (phba->sli_rev == LPFC_SLI_REV4) {
11381                 if (max_xri <= 100)
11382                         return 10;
11383                 else if (max_xri <= 256)
11384                         return 25;
11385                 else if (max_xri <= 512)
11386                         return 50;
11387                 else if (max_xri <= 1024)
11388                         return 100;
11389                 else if (max_xri <= 1536)
11390                         return 150;
11391                 else if (max_xri <= 2048)
11392                         return 200;
11393                 else
11394                         return 250;
11395         } else
11396                 return 0;
11397 }
11398
11399 /**
11400  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
11401  * @phba: pointer to lpfc hba data structure.
11402  *
11403  * returns the number of ELS/CT + NVMET IOCBs to reserve
11404  **/
11405 int
11406 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
11407 {
11408         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
11409
11410         if (phba->nvmet_support)
11411                 max_xri += LPFC_NVMET_BUF_POST;
11412         return max_xri;
11413 }
11414
11415
11416 static void
11417 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
11418         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
11419         const struct firmware *fw)
11420 {
11421         if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) ||
11422             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
11423              magic_number != MAGIC_NUMER_G6) ||
11424             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
11425              magic_number != MAGIC_NUMER_G7))
11426                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11427                         "3030 This firmware version is not supported on "
11428                         "this HBA model. Device:%x Magic:%x Type:%x "
11429                         "ID:%x Size %d %zd\n",
11430                         phba->pcidev->device, magic_number, ftype, fid,
11431                         fsize, fw->size);
11432         else
11433                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11434                         "3022 FW Download failed. Device:%x Magic:%x Type:%x "
11435                         "ID:%x Size %d %zd\n",
11436                         phba->pcidev->device, magic_number, ftype, fid,
11437                         fsize, fw->size);
11438 }
11439
11440
11441 /**
11442  * lpfc_write_firmware - attempt to write a firmware image to the port
11443  * @fw: pointer to firmware image returned from request_firmware.
11444  * @phba: pointer to lpfc hba data structure.
11445  *
11446  **/
11447 static void
11448 lpfc_write_firmware(const struct firmware *fw, void *context)
11449 {
11450         struct lpfc_hba *phba = (struct lpfc_hba *)context;
11451         char fwrev[FW_REV_STR_SIZE];
11452         struct lpfc_grp_hdr *image;
11453         struct list_head dma_buffer_list;
11454         int i, rc = 0;
11455         struct lpfc_dmabuf *dmabuf, *next;
11456         uint32_t offset = 0, temp_offset = 0;
11457         uint32_t magic_number, ftype, fid, fsize;
11458
11459         /* It can be null in no-wait mode, sanity check */
11460         if (!fw) {
11461                 rc = -ENXIO;
11462                 goto out;
11463         }
11464         image = (struct lpfc_grp_hdr *)fw->data;
11465
11466         magic_number = be32_to_cpu(image->magic_number);
11467         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
11468         fid = bf_get_be32(lpfc_grp_hdr_id, image);
11469         fsize = be32_to_cpu(image->size);
11470
11471         INIT_LIST_HEAD(&dma_buffer_list);
11472         lpfc_decode_firmware_rev(phba, fwrev, 1);
11473         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
11474                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11475                                 "3023 Updating Firmware, Current Version:%s "
11476                                 "New Version:%s\n",
11477                                 fwrev, image->revision);
11478                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
11479                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
11480                                          GFP_KERNEL);
11481                         if (!dmabuf) {
11482                                 rc = -ENOMEM;
11483                                 goto release_out;
11484                         }
11485                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11486                                                           SLI4_PAGE_SIZE,
11487                                                           &dmabuf->phys,
11488                                                           GFP_KERNEL);
11489                         if (!dmabuf->virt) {
11490                                 kfree(dmabuf);
11491                                 rc = -ENOMEM;
11492                                 goto release_out;
11493                         }
11494                         list_add_tail(&dmabuf->list, &dma_buffer_list);
11495                 }
11496                 while (offset < fw->size) {
11497                         temp_offset = offset;
11498                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
11499                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
11500                                         memcpy(dmabuf->virt,
11501                                                fw->data + temp_offset,
11502                                                fw->size - temp_offset);
11503                                         temp_offset = fw->size;
11504                                         break;
11505                                 }
11506                                 memcpy(dmabuf->virt, fw->data + temp_offset,
11507                                        SLI4_PAGE_SIZE);
11508                                 temp_offset += SLI4_PAGE_SIZE;
11509                         }
11510                         rc = lpfc_wr_object(phba, &dma_buffer_list,
11511                                     (fw->size - offset), &offset);
11512                         if (rc) {
11513                                 lpfc_log_write_firmware_error(phba, offset,
11514                                         magic_number, ftype, fid, fsize, fw);
11515                                 goto release_out;
11516                         }
11517                 }
11518                 rc = offset;
11519         } else
11520                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11521                                 "3029 Skipped Firmware update, Current "
11522                                 "Version:%s New Version:%s\n",
11523                                 fwrev, image->revision);
11524
11525 release_out:
11526         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
11527                 list_del(&dmabuf->list);
11528                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11529                                   dmabuf->virt, dmabuf->phys);
11530                 kfree(dmabuf);
11531         }
11532         release_firmware(fw);
11533 out:
11534         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11535                         "3024 Firmware update done: %d.\n", rc);
11536         return;
11537 }
11538
11539 /**
11540  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11541  * @phba: pointer to lpfc hba data structure.
11542  *
11543  * This routine is called to perform Linux generic firmware upgrade on device
11544  * that supports such feature.
11545  **/
11546 int
11547 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11548 {
11549         uint8_t file_name[ELX_MODEL_NAME_SIZE];
11550         int ret;
11551         const struct firmware *fw;
11552
11553         /* Only supported on SLI4 interface type 2 for now */
11554         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
11555             LPFC_SLI_INTF_IF_TYPE_2)
11556                 return -EPERM;
11557
11558         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
11559
11560         if (fw_upgrade == INT_FW_UPGRADE) {
11561                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11562                                         file_name, &phba->pcidev->dev,
11563                                         GFP_KERNEL, (void *)phba,
11564                                         lpfc_write_firmware);
11565         } else if (fw_upgrade == RUN_FW_UPGRADE) {
11566                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
11567                 if (!ret)
11568                         lpfc_write_firmware(fw, (void *)phba);
11569         } else {
11570                 ret = -EINVAL;
11571         }
11572
11573         return ret;
11574 }
11575
11576 /**
11577  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11578  * @pdev: pointer to PCI device
11579  * @pid: pointer to PCI device identifier
11580  *
11581  * This routine is called from the kernel's PCI subsystem to device with
11582  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11583  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11584  * information of the device and driver to see if the driver state that it
11585  * can support this kind of device. If the match is successful, the driver
11586  * core invokes this routine. If this routine determines it can claim the HBA,
11587  * it does all the initialization that it needs to do to handle the HBA
11588  * properly.
11589  *
11590  * Return code
11591  *      0 - driver can claim the device
11592  *      negative value - driver can not claim the device
11593  **/
11594 static int
11595 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11596 {
11597         struct lpfc_hba   *phba;
11598         struct lpfc_vport *vport = NULL;
11599         struct Scsi_Host  *shost = NULL;
11600         int error;
11601         uint32_t cfg_mode, intr_mode;
11602
11603         /* Allocate memory for HBA structure */
11604         phba = lpfc_hba_alloc(pdev);
11605         if (!phba)
11606                 return -ENOMEM;
11607
11608         /* Perform generic PCI device enabling operation */
11609         error = lpfc_enable_pci_dev(phba);
11610         if (error)
11611                 goto out_free_phba;
11612
11613         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
11614         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11615         if (error)
11616                 goto out_disable_pci_dev;
11617
11618         /* Set up SLI-4 specific device PCI memory space */
11619         error = lpfc_sli4_pci_mem_setup(phba);
11620         if (error) {
11621                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11622                                 "1410 Failed to set up pci memory space.\n");
11623                 goto out_disable_pci_dev;
11624         }
11625
11626         /* Set up SLI-4 Specific device driver resources */
11627         error = lpfc_sli4_driver_resource_setup(phba);
11628         if (error) {
11629                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11630                                 "1412 Failed to set up driver resource.\n");
11631                 goto out_unset_pci_mem_s4;
11632         }
11633
11634         INIT_LIST_HEAD(&phba->active_rrq_list);
11635         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11636
11637         /* Set up common device driver resources */
11638         error = lpfc_setup_driver_resource_phase2(phba);
11639         if (error) {
11640                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11641                                 "1414 Failed to set up driver resource.\n");
11642                 goto out_unset_driver_resource_s4;
11643         }
11644
11645         /* Get the default values for Model Name and Description */
11646         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11647
11648         /* Create SCSI host to the physical port */
11649         error = lpfc_create_shost(phba);
11650         if (error) {
11651                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11652                                 "1415 Failed to create scsi host.\n");
11653                 goto out_unset_driver_resource;
11654         }
11655
11656         /* Configure sysfs attributes */
11657         vport = phba->pport;
11658         error = lpfc_alloc_sysfs_attr(vport);
11659         if (error) {
11660                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11661                                 "1416 Failed to allocate sysfs attr\n");
11662                 goto out_destroy_shost;
11663         }
11664
11665         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11666         /* Now, trying to enable interrupt and bring up the device */
11667         cfg_mode = phba->cfg_use_msi;
11668
11669         /* Put device to a known state before enabling interrupt */
11670         lpfc_stop_port(phba);
11671
11672         /* Configure and enable interrupt */
11673         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11674         if (intr_mode == LPFC_INTR_ERROR) {
11675                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11676                                 "0426 Failed to enable interrupt.\n");
11677                 error = -ENODEV;
11678                 goto out_free_sysfs_attr;
11679         }
11680         /* Default to single EQ for non-MSI-X */
11681         if (phba->intr_type != MSIX) {
11682                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11683                         phba->cfg_fcp_io_channel = 1;
11684                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11685                         phba->cfg_nvme_io_channel = 1;
11686                         if (phba->nvmet_support)
11687                                 phba->cfg_nvmet_mrq = 1;
11688                 }
11689                 phba->io_channel_irqs = 1;
11690         }
11691
11692         /* Set up SLI-4 HBA */
11693         if (lpfc_sli4_hba_setup(phba)) {
11694                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11695                                 "1421 Failed to set up hba\n");
11696                 error = -ENODEV;
11697                 goto out_disable_intr;
11698         }
11699
11700         /* Log the current active interrupt mode */
11701         phba->intr_mode = intr_mode;
11702         lpfc_log_intr_mode(phba, intr_mode);
11703
11704         /* Perform post initialization setup */
11705         lpfc_post_init_setup(phba);
11706
11707         /* NVME support in FW earlier in the driver load corrects the
11708          * FC4 type making a check for nvme_support unnecessary.
11709          */
11710         if ((phba->nvmet_support == 0) &&
11711             (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11712                 /* Create NVME binding with nvme_fc_transport. This
11713                  * ensures the vport is initialized.  If the localport
11714                  * create fails, it should not unload the driver to
11715                  * support field issues.
11716                  */
11717                 error = lpfc_nvme_create_localport(vport);
11718                 if (error) {
11719                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11720                                         "6004 NVME registration failed, "
11721                                         "error x%x\n",
11722                                         error);
11723                 }
11724         }
11725
11726         /* check for firmware upgrade or downgrade */
11727         if (phba->cfg_request_firmware_upgrade)
11728                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11729
11730         /* Check if there are static vports to be created. */
11731         lpfc_create_static_vport(phba);
11732
11733         /* Enable RAS FW log support */
11734         lpfc_sli4_ras_setup(phba);
11735
11736         return 0;
11737
11738 out_disable_intr:
11739         lpfc_sli4_disable_intr(phba);
11740 out_free_sysfs_attr:
11741         lpfc_free_sysfs_attr(vport);
11742 out_destroy_shost:
11743         lpfc_destroy_shost(phba);
11744 out_unset_driver_resource:
11745         lpfc_unset_driver_resource_phase2(phba);
11746 out_unset_driver_resource_s4:
11747         lpfc_sli4_driver_resource_unset(phba);
11748 out_unset_pci_mem_s4:
11749         lpfc_sli4_pci_mem_unset(phba);
11750 out_disable_pci_dev:
11751         lpfc_disable_pci_dev(phba);
11752         if (shost)
11753                 scsi_host_put(shost);
11754 out_free_phba:
11755         lpfc_hba_free(phba);
11756         return error;
11757 }
11758
11759 /**
11760  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11761  * @pdev: pointer to PCI device
11762  *
11763  * This routine is called from the kernel's PCI subsystem to device with
11764  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11765  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11766  * device to be removed from the PCI subsystem properly.
11767  **/
11768 static void
11769 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11770 {
11771         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11772         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11773         struct lpfc_vport **vports;
11774         struct lpfc_hba *phba = vport->phba;
11775         int i;
11776
11777         /* Mark the device unloading flag */
11778         spin_lock_irq(&phba->hbalock);
11779         vport->load_flag |= FC_UNLOADING;
11780         spin_unlock_irq(&phba->hbalock);
11781
11782         /* Free the HBA sysfs attributes */
11783         lpfc_free_sysfs_attr(vport);
11784
11785         /* Release all the vports against this physical port */
11786         vports = lpfc_create_vport_work_array(phba);
11787         if (vports != NULL)
11788                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11789                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11790                                 continue;
11791                         fc_vport_terminate(vports[i]->fc_vport);
11792                 }
11793         lpfc_destroy_vport_work_array(phba, vports);
11794
11795         /* Remove FC host and then SCSI host with the physical port */
11796         fc_remove_host(shost);
11797         scsi_remove_host(shost);
11798
11799         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
11800          * localports are destroyed after to cleanup all transport memory.
11801          */
11802         lpfc_cleanup(vport);
11803         lpfc_nvmet_destroy_targetport(phba);
11804         lpfc_nvme_destroy_localport(vport);
11805
11806         /*
11807          * Bring down the SLI Layer. This step disables all interrupts,
11808          * clears the rings, discards all mailbox commands, and resets
11809          * the HBA FCoE function.
11810          */
11811         lpfc_debugfs_terminate(vport);
11812         lpfc_sli4_hba_unset(phba);
11813
11814         lpfc_stop_hba_timers(phba);
11815         spin_lock_irq(&phba->port_list_lock);
11816         list_del_init(&vport->listentry);
11817         spin_unlock_irq(&phba->port_list_lock);
11818
11819         /* Perform scsi free before driver resource_unset since scsi
11820          * buffers are released to their corresponding pools here.
11821          */
11822         lpfc_scsi_free(phba);
11823         lpfc_nvme_free(phba);
11824         lpfc_free_iocb_list(phba);
11825
11826         lpfc_unset_driver_resource_phase2(phba);
11827         lpfc_sli4_driver_resource_unset(phba);
11828
11829         /* Unmap adapter Control and Doorbell registers */
11830         lpfc_sli4_pci_mem_unset(phba);
11831
11832         /* Release PCI resources and disable device's PCI function */
11833         scsi_host_put(shost);
11834         lpfc_disable_pci_dev(phba);
11835
11836         /* Finally, free the driver's device data structure */
11837         lpfc_hba_free(phba);
11838
11839         return;
11840 }
11841
11842 /**
11843  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
11844  * @pdev: pointer to PCI device
11845  * @msg: power management message
11846  *
11847  * This routine is called from the kernel's PCI subsystem to support system
11848  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
11849  * this method, it quiesces the device by stopping the driver's worker
11850  * thread for the device, turning off device's interrupt and DMA, and bring
11851  * the device offline. Note that as the driver implements the minimum PM
11852  * requirements to a power-aware driver's PM support for suspend/resume -- all
11853  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
11854  * method call will be treated as SUSPEND and the driver will fully
11855  * reinitialize its device during resume() method call, the driver will set
11856  * device to PCI_D3hot state in PCI config space instead of setting it
11857  * according to the @msg provided by the PM.
11858  *
11859  * Return code
11860  *      0 - driver suspended the device
11861  *      Error otherwise
11862  **/
11863 static int
11864 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
11865 {
11866         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11867         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11868
11869         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11870                         "2843 PCI device Power Management suspend.\n");
11871
11872         /* Bring down the device */
11873         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11874         lpfc_offline(phba);
11875         kthread_stop(phba->worker_thread);
11876
11877         /* Disable interrupt from device */
11878         lpfc_sli4_disable_intr(phba);
11879         lpfc_sli4_queue_destroy(phba);
11880
11881         /* Save device state to PCI config space */
11882         pci_save_state(pdev);
11883         pci_set_power_state(pdev, PCI_D3hot);
11884
11885         return 0;
11886 }
11887
11888 /**
11889  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
11890  * @pdev: pointer to PCI device
11891  *
11892  * This routine is called from the kernel's PCI subsystem to support system
11893  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
11894  * this method, it restores the device's PCI config space state and fully
11895  * reinitializes the device and brings it online. Note that as the driver
11896  * implements the minimum PM requirements to a power-aware driver's PM for
11897  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11898  * to the suspend() method call will be treated as SUSPEND and the driver
11899  * will fully reinitialize its device during resume() method call, the device
11900  * will be set to PCI_D0 directly in PCI config space before restoring the
11901  * state.
11902  *
11903  * Return code
11904  *      0 - driver suspended the device
11905  *      Error otherwise
11906  **/
11907 static int
11908 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
11909 {
11910         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11911         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11912         uint32_t intr_mode;
11913         int error;
11914
11915         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11916                         "0292 PCI device Power Management resume.\n");
11917
11918         /* Restore device state from PCI config space */
11919         pci_set_power_state(pdev, PCI_D0);
11920         pci_restore_state(pdev);
11921
11922         /*
11923          * As the new kernel behavior of pci_restore_state() API call clears
11924          * device saved_state flag, need to save the restored state again.
11925          */
11926         pci_save_state(pdev);
11927
11928         if (pdev->is_busmaster)
11929                 pci_set_master(pdev);
11930
11931          /* Startup the kernel thread for this host adapter. */
11932         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11933                                         "lpfc_worker_%d", phba->brd_no);
11934         if (IS_ERR(phba->worker_thread)) {
11935                 error = PTR_ERR(phba->worker_thread);
11936                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11937                                 "0293 PM resume failed to start worker "
11938                                 "thread: error=x%x.\n", error);
11939                 return error;
11940         }
11941
11942         /* Configure and enable interrupt */
11943         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11944         if (intr_mode == LPFC_INTR_ERROR) {
11945                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11946                                 "0294 PM resume Failed to enable interrupt\n");
11947                 return -EIO;
11948         } else
11949                 phba->intr_mode = intr_mode;
11950
11951         /* Restart HBA and bring it online */
11952         lpfc_sli_brdrestart(phba);
11953         lpfc_online(phba);
11954
11955         /* Log the current active interrupt mode */
11956         lpfc_log_intr_mode(phba, phba->intr_mode);
11957
11958         return 0;
11959 }
11960
11961 /**
11962  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
11963  * @phba: pointer to lpfc hba data structure.
11964  *
11965  * This routine is called to prepare the SLI4 device for PCI slot recover. It
11966  * aborts all the outstanding SCSI I/Os to the pci device.
11967  **/
11968 static void
11969 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
11970 {
11971         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11972                         "2828 PCI channel I/O abort preparing for recovery\n");
11973         /*
11974          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11975          * and let the SCSI mid-layer to retry them to recover.
11976          */
11977         lpfc_sli_abort_fcp_rings(phba);
11978 }
11979
11980 /**
11981  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
11982  * @phba: pointer to lpfc hba data structure.
11983  *
11984  * This routine is called to prepare the SLI4 device for PCI slot reset. It
11985  * disables the device interrupt and pci device, and aborts the internal FCP
11986  * pending I/Os.
11987  **/
11988 static void
11989 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
11990 {
11991         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11992                         "2826 PCI channel disable preparing for reset\n");
11993
11994         /* Block any management I/Os to the device */
11995         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
11996
11997         /* Block all SCSI devices' I/Os on the host */
11998         lpfc_scsi_dev_block(phba);
11999
12000         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12001         lpfc_sli_flush_fcp_rings(phba);
12002
12003         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12004         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12005                 lpfc_sli_flush_nvme_rings(phba);
12006
12007         /* stop all timers */
12008         lpfc_stop_hba_timers(phba);
12009
12010         /* Disable interrupt and pci device */
12011         lpfc_sli4_disable_intr(phba);
12012         lpfc_sli4_queue_destroy(phba);
12013         pci_disable_device(phba->pcidev);
12014 }
12015
12016 /**
12017  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
12018  * @phba: pointer to lpfc hba data structure.
12019  *
12020  * This routine is called to prepare the SLI4 device for PCI slot permanently
12021  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12022  * pending I/Os.
12023  **/
12024 static void
12025 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12026 {
12027         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12028                         "2827 PCI channel permanent disable for failure\n");
12029
12030         /* Block all SCSI devices' I/Os on the host */
12031         lpfc_scsi_dev_block(phba);
12032
12033         /* stop all timers */
12034         lpfc_stop_hba_timers(phba);
12035
12036         /* Clean up all driver's outstanding SCSI I/Os */
12037         lpfc_sli_flush_fcp_rings(phba);
12038
12039         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12040         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12041                 lpfc_sli_flush_nvme_rings(phba);
12042 }
12043
12044 /**
12045  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
12046  * @pdev: pointer to PCI device.
12047  * @state: the current PCI connection state.
12048  *
12049  * This routine is called from the PCI subsystem for error handling to device
12050  * with SLI-4 interface spec. This function is called by the PCI subsystem
12051  * after a PCI bus error affecting this device has been detected. When this
12052  * function is invoked, it will need to stop all the I/Os and interrupt(s)
12053  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
12054  * for the PCI subsystem to perform proper recovery as desired.
12055  *
12056  * Return codes
12057  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12058  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12059  **/
12060 static pci_ers_result_t
12061 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
12062 {
12063         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12064         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12065
12066         switch (state) {
12067         case pci_channel_io_normal:
12068                 /* Non-fatal error, prepare for recovery */
12069                 lpfc_sli4_prep_dev_for_recover(phba);
12070                 return PCI_ERS_RESULT_CAN_RECOVER;
12071         case pci_channel_io_frozen:
12072                 /* Fatal error, prepare for slot reset */
12073                 lpfc_sli4_prep_dev_for_reset(phba);
12074                 return PCI_ERS_RESULT_NEED_RESET;
12075         case pci_channel_io_perm_failure:
12076                 /* Permanent failure, prepare for device down */
12077                 lpfc_sli4_prep_dev_for_perm_failure(phba);
12078                 return PCI_ERS_RESULT_DISCONNECT;
12079         default:
12080                 /* Unknown state, prepare and request slot reset */
12081                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12082                                 "2825 Unknown PCI error state: x%x\n", state);
12083                 lpfc_sli4_prep_dev_for_reset(phba);
12084                 return PCI_ERS_RESULT_NEED_RESET;
12085         }
12086 }
12087
12088 /**
12089  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
12090  * @pdev: pointer to PCI device.
12091  *
12092  * This routine is called from the PCI subsystem for error handling to device
12093  * with SLI-4 interface spec. It is called after PCI bus has been reset to
12094  * restart the PCI card from scratch, as if from a cold-boot. During the
12095  * PCI subsystem error recovery, after the driver returns
12096  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12097  * recovery and then call this routine before calling the .resume method to
12098  * recover the device. This function will initialize the HBA device, enable
12099  * the interrupt, but it will just put the HBA to offline state without
12100  * passing any I/O traffic.
12101  *
12102  * Return codes
12103  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12104  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12105  */
12106 static pci_ers_result_t
12107 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
12108 {
12109         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12110         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12111         struct lpfc_sli *psli = &phba->sli;
12112         uint32_t intr_mode;
12113
12114         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12115         if (pci_enable_device_mem(pdev)) {
12116                 printk(KERN_ERR "lpfc: Cannot re-enable "
12117                         "PCI device after reset.\n");
12118                 return PCI_ERS_RESULT_DISCONNECT;
12119         }
12120
12121         pci_restore_state(pdev);
12122
12123         /*
12124          * As the new kernel behavior of pci_restore_state() API call clears
12125          * device saved_state flag, need to save the restored state again.
12126          */
12127         pci_save_state(pdev);
12128
12129         if (pdev->is_busmaster)
12130                 pci_set_master(pdev);
12131
12132         spin_lock_irq(&phba->hbalock);
12133         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12134         spin_unlock_irq(&phba->hbalock);
12135
12136         /* Configure and enable interrupt */
12137         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12138         if (intr_mode == LPFC_INTR_ERROR) {
12139                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12140                                 "2824 Cannot re-enable interrupt after "
12141                                 "slot reset.\n");
12142                 return PCI_ERS_RESULT_DISCONNECT;
12143         } else
12144                 phba->intr_mode = intr_mode;
12145
12146         /* Log the current active interrupt mode */
12147         lpfc_log_intr_mode(phba, phba->intr_mode);
12148
12149         return PCI_ERS_RESULT_RECOVERED;
12150 }
12151
12152 /**
12153  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
12154  * @pdev: pointer to PCI device
12155  *
12156  * This routine is called from the PCI subsystem for error handling to device
12157  * with SLI-4 interface spec. It is called when kernel error recovery tells
12158  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12159  * error recovery. After this call, traffic can start to flow from this device
12160  * again.
12161  **/
12162 static void
12163 lpfc_io_resume_s4(struct pci_dev *pdev)
12164 {
12165         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12166         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12167
12168         /*
12169          * In case of slot reset, as function reset is performed through
12170          * mailbox command which needs DMA to be enabled, this operation
12171          * has to be moved to the io resume phase. Taking device offline
12172          * will perform the necessary cleanup.
12173          */
12174         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
12175                 /* Perform device reset */
12176                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12177                 lpfc_offline(phba);
12178                 lpfc_sli_brdrestart(phba);
12179                 /* Bring the device back online */
12180                 lpfc_online(phba);
12181         }
12182 }
12183
12184 /**
12185  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
12186  * @pdev: pointer to PCI device
12187  * @pid: pointer to PCI device identifier
12188  *
12189  * This routine is to be registered to the kernel's PCI subsystem. When an
12190  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
12191  * at PCI device-specific information of the device and driver to see if the
12192  * driver state that it can support this kind of device. If the match is
12193  * successful, the driver core invokes this routine. This routine dispatches
12194  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
12195  * do all the initialization that it needs to do to handle the HBA device
12196  * properly.
12197  *
12198  * Return code
12199  *      0 - driver can claim the device
12200  *      negative value - driver can not claim the device
12201  **/
12202 static int
12203 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
12204 {
12205         int rc;
12206         struct lpfc_sli_intf intf;
12207
12208         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
12209                 return -ENODEV;
12210
12211         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
12212             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
12213                 rc = lpfc_pci_probe_one_s4(pdev, pid);
12214         else
12215                 rc = lpfc_pci_probe_one_s3(pdev, pid);
12216
12217         return rc;
12218 }
12219
12220 /**
12221  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
12222  * @pdev: pointer to PCI device
12223  *
12224  * This routine is to be registered to the kernel's PCI subsystem. When an
12225  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
12226  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
12227  * remove routine, which will perform all the necessary cleanup for the
12228  * device to be removed from the PCI subsystem properly.
12229  **/
12230 static void
12231 lpfc_pci_remove_one(struct pci_dev *pdev)
12232 {
12233         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12234         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12235
12236         switch (phba->pci_dev_grp) {
12237         case LPFC_PCI_DEV_LP:
12238                 lpfc_pci_remove_one_s3(pdev);
12239                 break;
12240         case LPFC_PCI_DEV_OC:
12241                 lpfc_pci_remove_one_s4(pdev);
12242                 break;
12243         default:
12244                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12245                                 "1424 Invalid PCI device group: 0x%x\n",
12246                                 phba->pci_dev_grp);
12247                 break;
12248         }
12249         return;
12250 }
12251
12252 /**
12253  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
12254  * @pdev: pointer to PCI device
12255  * @msg: power management message
12256  *
12257  * This routine is to be registered to the kernel's PCI subsystem to support
12258  * system Power Management (PM). When PM invokes this method, it dispatches
12259  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
12260  * suspend the device.
12261  *
12262  * Return code
12263  *      0 - driver suspended the device
12264  *      Error otherwise
12265  **/
12266 static int
12267 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
12268 {
12269         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12270         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12271         int rc = -ENODEV;
12272
12273         switch (phba->pci_dev_grp) {
12274         case LPFC_PCI_DEV_LP:
12275                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
12276                 break;
12277         case LPFC_PCI_DEV_OC:
12278                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
12279                 break;
12280         default:
12281                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12282                                 "1425 Invalid PCI device group: 0x%x\n",
12283                                 phba->pci_dev_grp);
12284                 break;
12285         }
12286         return rc;
12287 }
12288
12289 /**
12290  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
12291  * @pdev: pointer to PCI device
12292  *
12293  * This routine is to be registered to the kernel's PCI subsystem to support
12294  * system Power Management (PM). When PM invokes this method, it dispatches
12295  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
12296  * resume the device.
12297  *
12298  * Return code
12299  *      0 - driver suspended the device
12300  *      Error otherwise
12301  **/
12302 static int
12303 lpfc_pci_resume_one(struct pci_dev *pdev)
12304 {
12305         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12306         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12307         int rc = -ENODEV;
12308
12309         switch (phba->pci_dev_grp) {
12310         case LPFC_PCI_DEV_LP:
12311                 rc = lpfc_pci_resume_one_s3(pdev);
12312                 break;
12313         case LPFC_PCI_DEV_OC:
12314                 rc = lpfc_pci_resume_one_s4(pdev);
12315                 break;
12316         default:
12317                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12318                                 "1426 Invalid PCI device group: 0x%x\n",
12319                                 phba->pci_dev_grp);
12320                 break;
12321         }
12322         return rc;
12323 }
12324
12325 /**
12326  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
12327  * @pdev: pointer to PCI device.
12328  * @state: the current PCI connection state.
12329  *
12330  * This routine is registered to the PCI subsystem for error handling. This
12331  * function is called by the PCI subsystem after a PCI bus error affecting
12332  * this device has been detected. When this routine is invoked, it dispatches
12333  * the action to the proper SLI-3 or SLI-4 device error detected handling
12334  * routine, which will perform the proper error detected operation.
12335  *
12336  * Return codes
12337  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12338  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12339  **/
12340 static pci_ers_result_t
12341 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
12342 {
12343         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12344         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12345         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12346
12347         switch (phba->pci_dev_grp) {
12348         case LPFC_PCI_DEV_LP:
12349                 rc = lpfc_io_error_detected_s3(pdev, state);
12350                 break;
12351         case LPFC_PCI_DEV_OC:
12352                 rc = lpfc_io_error_detected_s4(pdev, state);
12353                 break;
12354         default:
12355                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12356                                 "1427 Invalid PCI device group: 0x%x\n",
12357                                 phba->pci_dev_grp);
12358                 break;
12359         }
12360         return rc;
12361 }
12362
12363 /**
12364  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
12365  * @pdev: pointer to PCI device.
12366  *
12367  * This routine is registered to the PCI subsystem for error handling. This
12368  * function is called after PCI bus has been reset to restart the PCI card
12369  * from scratch, as if from a cold-boot. When this routine is invoked, it
12370  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
12371  * routine, which will perform the proper device reset.
12372  *
12373  * Return codes
12374  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12375  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12376  **/
12377 static pci_ers_result_t
12378 lpfc_io_slot_reset(struct pci_dev *pdev)
12379 {
12380         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12381         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12382         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12383
12384         switch (phba->pci_dev_grp) {
12385         case LPFC_PCI_DEV_LP:
12386                 rc = lpfc_io_slot_reset_s3(pdev);
12387                 break;
12388         case LPFC_PCI_DEV_OC:
12389                 rc = lpfc_io_slot_reset_s4(pdev);
12390                 break;
12391         default:
12392                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12393                                 "1428 Invalid PCI device group: 0x%x\n",
12394                                 phba->pci_dev_grp);
12395                 break;
12396         }
12397         return rc;
12398 }
12399
12400 /**
12401  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
12402  * @pdev: pointer to PCI device
12403  *
12404  * This routine is registered to the PCI subsystem for error handling. It
12405  * is called when kernel error recovery tells the lpfc driver that it is
12406  * OK to resume normal PCI operation after PCI bus error recovery. When
12407  * this routine is invoked, it dispatches the action to the proper SLI-3
12408  * or SLI-4 device io_resume routine, which will resume the device operation.
12409  **/
12410 static void
12411 lpfc_io_resume(struct pci_dev *pdev)
12412 {
12413         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12414         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12415
12416         switch (phba->pci_dev_grp) {
12417         case LPFC_PCI_DEV_LP:
12418                 lpfc_io_resume_s3(pdev);
12419                 break;
12420         case LPFC_PCI_DEV_OC:
12421                 lpfc_io_resume_s4(pdev);
12422                 break;
12423         default:
12424                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12425                                 "1429 Invalid PCI device group: 0x%x\n",
12426                                 phba->pci_dev_grp);
12427                 break;
12428         }
12429         return;
12430 }
12431
12432 /**
12433  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
12434  * @phba: pointer to lpfc hba data structure.
12435  *
12436  * This routine checks to see if OAS is supported for this adapter. If
12437  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
12438  * the enable oas flag is cleared and the pool created for OAS device data
12439  * is destroyed.
12440  *
12441  **/
12442 void
12443 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
12444 {
12445
12446         if (!phba->cfg_EnableXLane)
12447                 return;
12448
12449         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
12450                 phba->cfg_fof = 1;
12451         } else {
12452                 phba->cfg_fof = 0;
12453                 if (phba->device_data_mem_pool)
12454                         mempool_destroy(phba->device_data_mem_pool);
12455                 phba->device_data_mem_pool = NULL;
12456         }
12457
12458         return;
12459 }
12460
12461 /**
12462  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
12463  * @phba: pointer to lpfc hba data structure.
12464  *
12465  * This routine checks to see if RAS is supported by the adapter. Check the
12466  * function through which RAS support enablement is to be done.
12467  **/
12468 void
12469 lpfc_sli4_ras_init(struct lpfc_hba *phba)
12470 {
12471         switch (phba->pcidev->device) {
12472         case PCI_DEVICE_ID_LANCER_G6_FC:
12473         case PCI_DEVICE_ID_LANCER_G7_FC:
12474                 phba->ras_fwlog.ras_hwsupport = true;
12475                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn))
12476                         phba->ras_fwlog.ras_enabled = true;
12477                 else
12478                         phba->ras_fwlog.ras_enabled = false;
12479                 break;
12480         default:
12481                 phba->ras_fwlog.ras_hwsupport = false;
12482         }
12483 }
12484
12485 /**
12486  * lpfc_fof_queue_setup - Set up all the fof queues
12487  * @phba: pointer to lpfc hba data structure.
12488  *
12489  * This routine is invoked to set up all the fof queues for the FC HBA
12490  * operation.
12491  *
12492  * Return codes
12493  *      0 - successful
12494  *      -ENOMEM - No available memory
12495  **/
12496 int
12497 lpfc_fof_queue_setup(struct lpfc_hba *phba)
12498 {
12499         struct lpfc_sli_ring *pring;
12500         int rc;
12501
12502         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
12503         if (rc)
12504                 return -ENOMEM;
12505
12506         if (phba->cfg_fof) {
12507
12508                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
12509                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
12510                 if (rc)
12511                         goto out_oas_cq;
12512
12513                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
12514                                     phba->sli4_hba.oas_cq, LPFC_FCP);
12515                 if (rc)
12516                         goto out_oas_wq;
12517
12518                 /* Bind this CQ/WQ to the NVME ring */
12519                 pring = phba->sli4_hba.oas_wq->pring;
12520                 pring->sli.sli4.wqp =
12521                         (void *)phba->sli4_hba.oas_wq;
12522                 phba->sli4_hba.oas_cq->pring = pring;
12523         }
12524
12525         return 0;
12526
12527 out_oas_wq:
12528         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
12529 out_oas_cq:
12530         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
12531         return rc;
12532
12533 }
12534
12535 /**
12536  * lpfc_fof_queue_create - Create all the fof queues
12537  * @phba: pointer to lpfc hba data structure.
12538  *
12539  * This routine is invoked to allocate all the fof queues for the FC HBA
12540  * operation. For each SLI4 queue type, the parameters such as queue entry
12541  * count (queue depth) shall be taken from the module parameter. For now,
12542  * we just use some constant number as place holder.
12543  *
12544  * Return codes
12545  *      0 - successful
12546  *      -ENOMEM - No availble memory
12547  *      -EIO - The mailbox failed to complete successfully.
12548  **/
12549 int
12550 lpfc_fof_queue_create(struct lpfc_hba *phba)
12551 {
12552         struct lpfc_queue *qdesc;
12553         uint32_t wqesize;
12554
12555         /* Create FOF EQ */
12556         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
12557                                       phba->sli4_hba.eq_esize,
12558                                       phba->sli4_hba.eq_ecount);
12559         if (!qdesc)
12560                 goto out_error;
12561
12562         qdesc->qe_valid = 1;
12563         phba->sli4_hba.fof_eq = qdesc;
12564
12565         if (phba->cfg_fof) {
12566
12567                 /* Create OAS CQ */
12568                 if (phba->enab_exp_wqcq_pages)
12569                         qdesc = lpfc_sli4_queue_alloc(phba,
12570                                                       LPFC_EXPANDED_PAGE_SIZE,
12571                                                       phba->sli4_hba.cq_esize,
12572                                                       LPFC_CQE_EXP_COUNT);
12573                 else
12574                         qdesc = lpfc_sli4_queue_alloc(phba,
12575                                                       LPFC_DEFAULT_PAGE_SIZE,
12576                                                       phba->sli4_hba.cq_esize,
12577                                                       phba->sli4_hba.cq_ecount);
12578                 if (!qdesc)
12579                         goto out_error;
12580
12581                 qdesc->qe_valid = 1;
12582                 phba->sli4_hba.oas_cq = qdesc;
12583
12584                 /* Create OAS WQ */
12585                 if (phba->enab_exp_wqcq_pages) {
12586                         wqesize = (phba->fcp_embed_io) ?
12587                                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12588                         qdesc = lpfc_sli4_queue_alloc(phba,
12589                                                       LPFC_EXPANDED_PAGE_SIZE,
12590                                                       wqesize,
12591                                                       LPFC_WQE_EXP_COUNT);
12592                 } else
12593                         qdesc = lpfc_sli4_queue_alloc(phba,
12594                                                       LPFC_DEFAULT_PAGE_SIZE,
12595                                                       phba->sli4_hba.wq_esize,
12596                                                       phba->sli4_hba.wq_ecount);
12597
12598                 if (!qdesc)
12599                         goto out_error;
12600
12601                 phba->sli4_hba.oas_wq = qdesc;
12602                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12603
12604         }
12605         return 0;
12606
12607 out_error:
12608         lpfc_fof_queue_destroy(phba);
12609         return -ENOMEM;
12610 }
12611
12612 /**
12613  * lpfc_fof_queue_destroy - Destroy all the fof queues
12614  * @phba: pointer to lpfc hba data structure.
12615  *
12616  * This routine is invoked to release all the SLI4 queues with the FC HBA
12617  * operation.
12618  *
12619  * Return codes
12620  *      0 - successful
12621  **/
12622 int
12623 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12624 {
12625         /* Release FOF Event queue */
12626         if (phba->sli4_hba.fof_eq != NULL) {
12627                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12628                 phba->sli4_hba.fof_eq = NULL;
12629         }
12630
12631         /* Release OAS Completion queue */
12632         if (phba->sli4_hba.oas_cq != NULL) {
12633                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12634                 phba->sli4_hba.oas_cq = NULL;
12635         }
12636
12637         /* Release OAS Work queue */
12638         if (phba->sli4_hba.oas_wq != NULL) {
12639                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12640                 phba->sli4_hba.oas_wq = NULL;
12641         }
12642         return 0;
12643 }
12644
12645 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12646
12647 static const struct pci_error_handlers lpfc_err_handler = {
12648         .error_detected = lpfc_io_error_detected,
12649         .slot_reset = lpfc_io_slot_reset,
12650         .resume = lpfc_io_resume,
12651 };
12652
12653 static struct pci_driver lpfc_driver = {
12654         .name           = LPFC_DRIVER_NAME,
12655         .id_table       = lpfc_id_table,
12656         .probe          = lpfc_pci_probe_one,
12657         .remove         = lpfc_pci_remove_one,
12658         .shutdown       = lpfc_pci_remove_one,
12659         .suspend        = lpfc_pci_suspend_one,
12660         .resume         = lpfc_pci_resume_one,
12661         .err_handler    = &lpfc_err_handler,
12662 };
12663
12664 static const struct file_operations lpfc_mgmt_fop = {
12665         .owner = THIS_MODULE,
12666 };
12667
12668 static struct miscdevice lpfc_mgmt_dev = {
12669         .minor = MISC_DYNAMIC_MINOR,
12670         .name = "lpfcmgmt",
12671         .fops = &lpfc_mgmt_fop,
12672 };
12673
12674 /**
12675  * lpfc_init - lpfc module initialization routine
12676  *
12677  * This routine is to be invoked when the lpfc module is loaded into the
12678  * kernel. The special kernel macro module_init() is used to indicate the
12679  * role of this routine to the kernel as lpfc module entry point.
12680  *
12681  * Return codes
12682  *   0 - successful
12683  *   -ENOMEM - FC attach transport failed
12684  *   all others - failed
12685  */
12686 static int __init
12687 lpfc_init(void)
12688 {
12689         int error = 0;
12690
12691         printk(LPFC_MODULE_DESC "\n");
12692         printk(LPFC_COPYRIGHT "\n");
12693
12694         error = misc_register(&lpfc_mgmt_dev);
12695         if (error)
12696                 printk(KERN_ERR "Could not register lpfcmgmt device, "
12697                         "misc_register returned with status %d", error);
12698
12699         lpfc_transport_functions.vport_create = lpfc_vport_create;
12700         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12701         lpfc_transport_template =
12702                                 fc_attach_transport(&lpfc_transport_functions);
12703         if (lpfc_transport_template == NULL)
12704                 return -ENOMEM;
12705         lpfc_vport_transport_template =
12706                 fc_attach_transport(&lpfc_vport_transport_functions);
12707         if (lpfc_vport_transport_template == NULL) {
12708                 fc_release_transport(lpfc_transport_template);
12709                 return -ENOMEM;
12710         }
12711         lpfc_nvme_cmd_template();
12712         lpfc_nvmet_cmd_template();
12713
12714         /* Initialize in case vector mapping is needed */
12715         lpfc_used_cpu = NULL;
12716         lpfc_present_cpu = num_present_cpus();
12717
12718         error = pci_register_driver(&lpfc_driver);
12719         if (error) {
12720                 fc_release_transport(lpfc_transport_template);
12721                 fc_release_transport(lpfc_vport_transport_template);
12722         }
12723
12724         return error;
12725 }
12726
12727 /**
12728  * lpfc_exit - lpfc module removal routine
12729  *
12730  * This routine is invoked when the lpfc module is removed from the kernel.
12731  * The special kernel macro module_exit() is used to indicate the role of
12732  * this routine to the kernel as lpfc module exit point.
12733  */
12734 static void __exit
12735 lpfc_exit(void)
12736 {
12737         misc_deregister(&lpfc_mgmt_dev);
12738         pci_unregister_driver(&lpfc_driver);
12739         fc_release_transport(lpfc_transport_template);
12740         fc_release_transport(lpfc_vport_transport_template);
12741         if (_dump_buf_data) {
12742                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
12743                                 "_dump_buf_data at 0x%p\n",
12744                                 (1L << _dump_buf_data_order), _dump_buf_data);
12745                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12746         }
12747
12748         if (_dump_buf_dif) {
12749                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
12750                                 "_dump_buf_dif at 0x%p\n",
12751                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
12752                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12753         }
12754         kfree(lpfc_used_cpu);
12755         idr_destroy(&lpfc_hba_index);
12756 }
12757
12758 module_init(lpfc_init);
12759 module_exit(lpfc_exit);
12760 MODULE_LICENSE("GPL");
12761 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12762 MODULE_AUTHOR("Broadcom");
12763 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);