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 Broadcom. All Rights Reserved. The term      *
   5  * “Broadcom” refers to Broadcom Limited 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
  41 #include <scsi/scsi.h>
  42 #include <scsi/scsi_device.h>
  43 #include <scsi/scsi_host.h>
  44 #include <scsi/scsi_transport_fc.h>
  45 #include <scsi/scsi_tcq.h>
  46 #include <scsi/fc/fc_fs.h>
  47
  48 #include <linux/nvme-fc-driver.h>
  49
  50 #include "lpfc_hw4.h"
  51 #include "lpfc_hw.h"
  52 #include "lpfc_sli.h"
  53 #include "lpfc_sli4.h"
  54 #include "lpfc_nl.h"
  55 #include "lpfc_disc.h"
  56 #include "lpfc.h"
  57 #include "lpfc_scsi.h"
  58 #include "lpfc_nvme.h"
  59 #include "lpfc_nvmet.h"
  60 #include "lpfc_logmsg.h"
  61 #include "lpfc_crtn.h"
  62 #include "lpfc_vport.h"
  63 #include "lpfc_version.h"
  64 #include "lpfc_ids.h"
  65
  66 char *_dump_buf_data;
  67 unsigned long _dump_buf_data_order;
  68 char *_dump_buf_dif;
  69 unsigned long _dump_buf_dif_order;
  70 spinlock_t _dump_buf_lock;
  71
  72 /* Used when mapping IRQ vectors in a driver centric manner */
  73 uint16_t *lpfc_used_cpu;
  74 uint32_t lpfc_present_cpu;
  75
  76 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  77 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  78 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  79 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  80 static int lpfc_setup_endian_order(struct lpfc_hba *);
  81 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  82 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  83 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  84 static void lpfc_init_sgl_list(struct lpfc_hba *);
  85 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  86 static void lpfc_free_active_sgl(struct lpfc_hba *);
  87 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  88 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  89 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  90 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  92 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  93 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  94 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  95
  96 static struct scsi_transport_template *lpfc_transport_template = NULL;
  97 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  98 static DEFINE_IDR(lpfc_hba_index);
  99 #define LPFC_NVMET_BUF_POST 254
 100
 101 /**
 102  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 103  * @phba: pointer to lpfc hba data structure.
 104  *
 105  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 106  * mailbox command. It retrieves the revision information from the HBA and
 107  * collects the Vital Product Data (VPD) about the HBA for preparing the
 108  * configuration of the HBA.
 109  *
 110  * Return codes:
 111  *   0 - success.
 112  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 113  *   Any other value - indicates an error.
 114  **/
 115 int
 116 lpfc_config_port_prep(struct lpfc_hba *phba)
 117 {
 118         lpfc_vpd_t *vp = &phba->vpd;
 119         int i = 0, rc;
 120         LPFC_MBOXQ_t *pmb;
 121         MAILBOX_t *mb;
 122         char *lpfc_vpd_data = NULL;
 123         uint16_t offset = 0;
 124         static char licensed[56] =
 125                     "key unlock for use with gnu public licensed code only\0";
 126         static int init_key = 1;
 127
 128         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 129         if (!pmb) {
 130                 phba->link_state = LPFC_HBA_ERROR;
 131                 return -ENOMEM;
 132         }
 133
 134         mb = &pmb->u.mb;
 135         phba->link_state = LPFC_INIT_MBX_CMDS;
 136
 137         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 138                 if (init_key) {
 139                         uint32_t *ptext = (uint32_t *) licensed;
 140
 141                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 142                                 *ptext = cpu_to_be32(*ptext);
 143                         init_key = 0;
 144                 }
 145
 146                 lpfc_read_nv(phba, pmb);
 147                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 148                         sizeof (mb->un.varRDnvp.rsvd3));
 149                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 150                          sizeof (licensed));
 151
 152                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 153
 154                 if (rc != MBX_SUCCESS) {
 155                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 156                                         "0324 Config Port initialization "
 157                                         "error, mbxCmd x%x READ_NVPARM, "
 158                                         "mbxStatus x%x\n",
 159                                         mb->mbxCommand, mb->mbxStatus);
 160                         mempool_free(pmb, phba->mbox_mem_pool);
 161                         return -ERESTART;
 162                 }
 163                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 164                        sizeof(phba->wwnn));
 165                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 166                        sizeof(phba->wwpn));
 167         }
 168
 169         phba->sli3_options = 0x0;
 170
 171         /* Setup and issue mailbox READ REV command */
 172         lpfc_read_rev(phba, pmb);
 173         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 174         if (rc != MBX_SUCCESS) {
 175                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 176                                 "0439 Adapter failed to init, mbxCmd x%x "
 177                                 "READ_REV, mbxStatus x%x\n",
 178                                 mb->mbxCommand, mb->mbxStatus);
 179                 mempool_free( pmb, phba->mbox_mem_pool);
 180                 return -ERESTART;
 181         }
 182
 183
 184         /*
 185          * The value of rr must be 1 since the driver set the cv field to 1.
 186          * This setting requires the FW to set all revision fields.
 187          */
 188         if (mb->un.varRdRev.rr == 0) {
 189                 vp->rev.rBit = 0;
 190                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 191                                 "0440 Adapter failed to init, READ_REV has "
 192                                 "missing revision information.\n");
 193                 mempool_free(pmb, phba->mbox_mem_pool);
 194                 return -ERESTART;
 195         }
 196
 197         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 198                 mempool_free(pmb, phba->mbox_mem_pool);
 199                 return -EINVAL;
 200         }
 201
 202         /* Save information as VPD data */
 203         vp->rev.rBit = 1;
 204         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 205         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 206         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 207         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 208         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 209         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 210         vp->rev.smRev = mb->un.varRdRev.smRev;
 211         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 212         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 213         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 214         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 215         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 216         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 217         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 218         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 219
 220         /* If the sli feature level is less then 9, we must
 221          * tear down all RPIs and VPIs on link down if NPIV
 222          * is enabled.
 223          */
 224         if (vp->rev.feaLevelHigh < 9)
 225                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 226
 227         if (lpfc_is_LC_HBA(phba->pcidev->device))
 228                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 229                                                 sizeof (phba->RandomData));
 230
 231         /* Get adapter VPD information */
 232         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 233         if (!lpfc_vpd_data)
 234                 goto out_free_mbox;
 235         do {
 236                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 237                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 238
 239                 if (rc != MBX_SUCCESS) {
 240                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 241                                         "0441 VPD not present on adapter, "
 242                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 243                                         mb->mbxCommand, mb->mbxStatus);
 244                         mb->un.varDmp.word_cnt = 0;
 245                 }
 246                 /* dump mem may return a zero when finished or we got a
 247                  * mailbox error, either way we are done.
 248                  */
 249                 if (mb->un.varDmp.word_cnt == 0)
 250                         break;
 251                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 252                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 253                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 254                                       lpfc_vpd_data + offset,
 255                                       mb->un.varDmp.word_cnt);
 256                 offset += mb->un.varDmp.word_cnt;
 257         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 258         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 259
 260         kfree(lpfc_vpd_data);
 261 out_free_mbox:
 262         mempool_free(pmb, phba->mbox_mem_pool);
 263         return 0;
 264 }
 265
 266 /**
 267  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 268  * @phba: pointer to lpfc hba data structure.
 269  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 270  *
 271  * This is the completion handler for driver's configuring asynchronous event
 272  * mailbox command to the device. If the mailbox command returns successfully,
 273  * it will set internal async event support flag to 1; otherwise, it will
 274  * set internal async event support flag to 0.
 275  **/
 276 static void
 277 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 278 {
 279         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 280                 phba->temp_sensor_support = 1;
 281         else
 282                 phba->temp_sensor_support = 0;
 283         mempool_free(pmboxq, phba->mbox_mem_pool);
 284         return;
 285 }
 286
 287 /**
 288  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 289  * @phba: pointer to lpfc hba data structure.
 290  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 291  *
 292  * This is the completion handler for dump mailbox command for getting
 293  * wake up parameters. When this command complete, the response contain
 294  * Option rom version of the HBA. This function translate the version number
 295  * into a human readable string and store it in OptionROMVersion.
 296  **/
 297 static void
 298 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 299 {
 300         struct prog_id *prg;
 301         uint32_t prog_id_word;
 302         char dist = ' ';
 303         /* character array used for decoding dist type. */
 304         char dist_char[] = "nabx";
 305
 306         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 307                 mempool_free(pmboxq, phba->mbox_mem_pool);
 308                 return;
 309         }
 310
 311         prg = (struct prog_id *) &prog_id_word;
 312
 313         /* word 7 contain option rom version */
 314         prog_id_word = pmboxq->u.mb.un.varWords[7];
 315
 316         /* Decode the Option rom version word to a readable string */
 317         if (prg->dist < 4)
 318                 dist = dist_char[prg->dist];
 319
 320         if ((prg->dist == 3) && (prg->num == 0))
 321                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 322                         prg->ver, prg->rev, prg->lev);
 323         else
 324                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 325                         prg->ver, prg->rev, prg->lev,
 326                         dist, prg->num);
 327         mempool_free(pmboxq, phba->mbox_mem_pool);
 328         return;
 329 }
 330
 331 /**
 332  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 333  *      cfg_soft_wwnn, cfg_soft_wwpn
 334  * @vport: pointer to lpfc vport data structure.
 335  *
 336  *
 337  * Return codes
 338  *   None.
 339  **/
 340 void
 341 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 342 {
 343         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 344         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 345
 346         /* If the soft name exists then update it using the service params */
 347         if (vport->phba->cfg_soft_wwnn)
 348                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 349                            vport->fc_sparam.nodeName.u.wwn);
 350         if (vport->phba->cfg_soft_wwpn)
 351                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 352                            vport->fc_sparam.portName.u.wwn);
 353
 354         /*
 355          * If the name is empty or there exists a soft name
 356          * then copy the service params name, otherwise use the fc name
 357          */
 358         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 359                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 360                         sizeof(struct lpfc_name));
 361         else
 362                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 363                         sizeof(struct lpfc_name));
 364
 365         /*
 366          * If the port name has changed, then set the Param changes flag
 367          * to unreg the login
 368          */
 369         if (vport->fc_portname.u.wwn[0] != 0 &&
 370                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 371                         sizeof(struct lpfc_name)))
 372                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 373
 374         if (vport->fc_portname.u.wwn[0] == 0 ||
 375             vport->phba->cfg_soft_wwpn ||
 376             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 377             vport->vport_flag & FAWWPN_SET) {
 378                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 379                         sizeof(struct lpfc_name));
 380                 vport->vport_flag &= ~FAWWPN_SET;
 381                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 382                         vport->vport_flag |= FAWWPN_SET;
 383         }
 384         else
 385                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 386                         sizeof(struct lpfc_name));
 387 }
 388
 389 /**
 390  * lpfc_config_port_post - Perform lpfc initialization after config port
 391  * @phba: pointer to lpfc hba data structure.
 392  *
 393  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 394  * command call. It performs all internal resource and state setups on the
 395  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 396  * ELS ring timers, etc.
 397  *
 398  * Return codes
 399  *   0 - success.
 400  *   Any other value - error.
 401  **/
 402 int
 403 lpfc_config_port_post(struct lpfc_hba *phba)
 404 {
 405         struct lpfc_vport *vport = phba->pport;
 406         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 407         LPFC_MBOXQ_t *pmb;
 408         MAILBOX_t *mb;
 409         struct lpfc_dmabuf *mp;
 410         struct lpfc_sli *psli = &phba->sli;
 411         uint32_t status, timeout;
 412         int i, j;
 413         int rc;
 414
 415         spin_lock_irq(&phba->hbalock);
 416         /*
 417          * If the Config port completed correctly the HBA is not
 418          * over heated any more.
 419          */
 420         if (phba->over_temp_state == HBA_OVER_TEMP)
 421                 phba->over_temp_state = HBA_NORMAL_TEMP;
 422         spin_unlock_irq(&phba->hbalock);
 423
 424         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 425         if (!pmb) {
 426                 phba->link_state = LPFC_HBA_ERROR;
 427                 return -ENOMEM;
 428         }
 429         mb = &pmb->u.mb;
 430
 431         /* Get login parameters for NID.  */
 432         rc = lpfc_read_sparam(phba, pmb, 0);
 433         if (rc) {
 434                 mempool_free(pmb, phba->mbox_mem_pool);
 435                 return -ENOMEM;
 436         }
 437
 438         pmb->vport = vport;
 439         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 440                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 441                                 "0448 Adapter failed init, mbxCmd x%x "
 442                                 "READ_SPARM mbxStatus x%x\n",
 443                                 mb->mbxCommand, mb->mbxStatus);
 444                 phba->link_state = LPFC_HBA_ERROR;
 445                 mp = (struct lpfc_dmabuf *) pmb->context1;
 446                 mempool_free(pmb, phba->mbox_mem_pool);
 447                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 448                 kfree(mp);
 449                 return -EIO;
 450         }
 451
 452         mp = (struct lpfc_dmabuf *) pmb->context1;
 453
 454         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 455         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 456         kfree(mp);
 457         pmb->context1 = NULL;
 458         lpfc_update_vport_wwn(vport);
 459
 460         /* Update the fc_host data structures with new wwn. */
 461         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 462         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 463         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 464
 465         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 466         /* This should be consolidated into parse_vpd ? - mr */
 467         if (phba->SerialNumber[0] == 0) {
 468                 uint8_t *outptr;
 469
 470                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 471                 for (i = 0; i < 12; i++) {
 472                         status = *outptr++;
 473                         j = ((status & 0xf0) >> 4);
 474                         if (j <= 9)
 475                                 phba->SerialNumber[i] =
 476                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 477                         else
 478                                 phba->SerialNumber[i] =
 479                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 480                         i++;
 481                         j = (status & 0xf);
 482                         if (j <= 9)
 483                                 phba->SerialNumber[i] =
 484                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 485                         else
 486                                 phba->SerialNumber[i] =
 487                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 488                 }
 489         }
 490
 491         lpfc_read_config(phba, pmb);
 492         pmb->vport = vport;
 493         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 494                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 495                                 "0453 Adapter failed to init, mbxCmd x%x "
 496                                 "READ_CONFIG, mbxStatus x%x\n",
 497                                 mb->mbxCommand, mb->mbxStatus);
 498                 phba->link_state = LPFC_HBA_ERROR;
 499                 mempool_free( pmb, phba->mbox_mem_pool);
 500                 return -EIO;
 501         }
 502
 503         /* Check if the port is disabled */
 504         lpfc_sli_read_link_ste(phba);
 505
 506         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 507         i = (mb->un.varRdConfig.max_xri + 1);
 508         if (phba->cfg_hba_queue_depth > i) {
 509                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 510                                 "3359 HBA queue depth changed from %d to %d\n",
 511                                 phba->cfg_hba_queue_depth, i);
 512                 phba->cfg_hba_queue_depth = i;
 513         }
 514
 515         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 516         i = (mb->un.varRdConfig.max_xri >> 3);
 517         if (phba->pport->cfg_lun_queue_depth > i) {
 518                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 519                                 "3360 LUN queue depth changed from %d to %d\n",
 520                                 phba->pport->cfg_lun_queue_depth, i);
 521                 phba->pport->cfg_lun_queue_depth = i;
 522         }
 523
 524         phba->lmt = mb->un.varRdConfig.lmt;
 525
 526         /* Get the default values for Model Name and Description */
 527         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 528
 529         phba->link_state = LPFC_LINK_DOWN;
 530
 531         /* Only process IOCBs on ELS ring till hba_state is READY */
 532         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 533                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 534         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 535                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 536
 537         /* Post receive buffers for desired rings */
 538         if (phba->sli_rev != 3)
 539                 lpfc_post_rcv_buf(phba);
 540
 541         /*
 542          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 543          */
 544         if (phba->intr_type == MSIX) {
 545                 rc = lpfc_config_msi(phba, pmb);
 546                 if (rc) {
 547                         mempool_free(pmb, phba->mbox_mem_pool);
 548                         return -EIO;
 549                 }
 550                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 551                 if (rc != MBX_SUCCESS) {
 552                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 553                                         "0352 Config MSI mailbox command "
 554                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 555                                         pmb->u.mb.mbxCommand,
 556                                         pmb->u.mb.mbxStatus);
 557                         mempool_free(pmb, phba->mbox_mem_pool);
 558                         return -EIO;
 559                 }
 560         }
 561
 562         spin_lock_irq(&phba->hbalock);
 563         /* Initialize ERATT handling flag */
 564         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 565
 566         /* Enable appropriate host interrupts */
 567         if (lpfc_readl(phba->HCregaddr, &status)) {
 568                 spin_unlock_irq(&phba->hbalock);
 569                 return -EIO;
 570         }
 571         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 572         if (psli->num_rings > 0)
 573                 status |= HC_R0INT_ENA;
 574         if (psli->num_rings > 1)
 575                 status |= HC_R1INT_ENA;
 576         if (psli->num_rings > 2)
 577                 status |= HC_R2INT_ENA;
 578         if (psli->num_rings > 3)
 579                 status |= HC_R3INT_ENA;
 580
 581         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 582             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 583                 status &= ~(HC_R0INT_ENA);
 584
 585         writel(status, phba->HCregaddr);
 586         readl(phba->HCregaddr); /* flush */
 587         spin_unlock_irq(&phba->hbalock);
 588
 589         /* Set up ring-0 (ELS) timer */
 590         timeout = phba->fc_ratov * 2;
 591         mod_timer(&vport->els_tmofunc,
 592                   jiffies + msecs_to_jiffies(1000 * timeout));
 593         /* Set up heart beat (HB) timer */
 594         mod_timer(&phba->hb_tmofunc,
 595                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 596         phba->hb_outstanding = 0;
 597         phba->last_completion_time = jiffies;
 598         /* Set up error attention (ERATT) polling timer */
 599         mod_timer(&phba->eratt_poll,
 600                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 601
 602         if (phba->hba_flag & LINK_DISABLED) {
 603                 lpfc_printf_log(phba,
 604                         KERN_ERR, LOG_INIT,
 605                         "2598 Adapter Link is disabled.\n");
 606                 lpfc_down_link(phba, pmb);
 607                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 608                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 609                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 610                         lpfc_printf_log(phba,
 611                         KERN_ERR, LOG_INIT,
 612                         "2599 Adapter failed to issue DOWN_LINK"
 613                         " mbox command rc 0x%x\n", rc);
 614
 615                         mempool_free(pmb, phba->mbox_mem_pool);
 616                         return -EIO;
 617                 }
 618         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 619                 mempool_free(pmb, phba->mbox_mem_pool);
 620                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 621                 if (rc)
 622                         return rc;
 623         }
 624         /* MBOX buffer will be freed in mbox compl */
 625         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 626         if (!pmb) {
 627                 phba->link_state = LPFC_HBA_ERROR;
 628                 return -ENOMEM;
 629         }
 630
 631         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 632         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 633         pmb->vport = phba->pport;
 634         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 635
 636         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 637                 lpfc_printf_log(phba,
 638                                 KERN_ERR,
 639                                 LOG_INIT,
 640                                 "0456 Adapter failed to issue "
 641                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 642                                 rc);
 643                 mempool_free(pmb, phba->mbox_mem_pool);
 644         }
 645
 646         /* Get Option rom version */
 647         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 648         if (!pmb) {
 649                 phba->link_state = LPFC_HBA_ERROR;
 650                 return -ENOMEM;
 651         }
 652
 653         lpfc_dump_wakeup_param(phba, pmb);
 654         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 655         pmb->vport = phba->pport;
 656         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 657
 658         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 659                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 660                                 "to get Option ROM version status x%x\n", rc);
 661                 mempool_free(pmb, phba->mbox_mem_pool);
 662         }
 663
 664         return 0;
 665 }
 666
 667 /**
 668  * lpfc_hba_init_link - Initialize the FC link
 669  * @phba: pointer to lpfc hba data structure.
 670  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 671  *
 672  * This routine will issue the INIT_LINK mailbox command call.
 673  * It is available to other drivers through the lpfc_hba data
 674  * structure for use as a delayed link up mechanism with the
 675  * module parameter lpfc_suppress_link_up.
 676  *
 677  * Return code
 678  *              0 - success
 679  *              Any other value - error
 680  **/
 681 static int
 682 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 683 {
 684         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 685 }
 686
 687 /**
 688  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 689  * @phba: pointer to lpfc hba data structure.
 690  * @fc_topology: desired fc topology.
 691  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 692  *
 693  * This routine will issue the INIT_LINK mailbox command call.
 694  * It is available to other drivers through the lpfc_hba data
 695  * structure for use as a delayed link up mechanism with the
 696  * module parameter lpfc_suppress_link_up.
 697  *
 698  * Return code
 699  *              0 - success
 700  *              Any other value - error
 701  **/
 702 int
 703 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 704                                uint32_t flag)
 705 {
 706         struct lpfc_vport *vport = phba->pport;
 707         LPFC_MBOXQ_t *pmb;
 708         MAILBOX_t *mb;
 709         int rc;
 710
 711         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 712         if (!pmb) {
 713                 phba->link_state = LPFC_HBA_ERROR;
 714                 return -ENOMEM;
 715         }
 716         mb = &pmb->u.mb;
 717         pmb->vport = vport;
 718
 719         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 720             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 721              !(phba->lmt & LMT_1Gb)) ||
 722             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 723              !(phba->lmt & LMT_2Gb)) ||
 724             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 725              !(phba->lmt & LMT_4Gb)) ||
 726             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 727              !(phba->lmt & LMT_8Gb)) ||
 728             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 729              !(phba->lmt & LMT_10Gb)) ||
 730             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 731              !(phba->lmt & LMT_16Gb)) ||
 732             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 733              !(phba->lmt & LMT_32Gb))) {
 734                 /* Reset link speed to auto */
 735                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 736                         "1302 Invalid speed for this board:%d "
 737                         "Reset link speed to auto.\n",
 738                         phba->cfg_link_speed);
 739                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 740         }
 741         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 742         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 743         if (phba->sli_rev < LPFC_SLI_REV4)
 744                 lpfc_set_loopback_flag(phba);
 745         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 746         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 747                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 748                         "0498 Adapter failed to init, mbxCmd x%x "
 749                         "INIT_LINK, mbxStatus x%x\n",
 750                         mb->mbxCommand, mb->mbxStatus);
 751                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 752                         /* Clear all interrupt enable conditions */
 753                         writel(0, phba->HCregaddr);
 754                         readl(phba->HCregaddr); /* flush */
 755                         /* Clear all pending interrupts */
 756                         writel(0xffffffff, phba->HAregaddr);
 757                         readl(phba->HAregaddr); /* flush */
 758                 }
 759                 phba->link_state = LPFC_HBA_ERROR;
 760                 if (rc != MBX_BUSY || flag == MBX_POLL)
 761                         mempool_free(pmb, phba->mbox_mem_pool);
 762                 return -EIO;
 763         }
 764         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 765         if (flag == MBX_POLL)
 766                 mempool_free(pmb, phba->mbox_mem_pool);
 767
 768         return 0;
 769 }
 770
 771 /**
 772  * lpfc_hba_down_link - this routine downs the FC link
 773  * @phba: pointer to lpfc hba data structure.
 774  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 775  *
 776  * This routine will issue the DOWN_LINK mailbox command call.
 777  * It is available to other drivers through the lpfc_hba data
 778  * structure for use to stop the link.
 779  *
 780  * Return code
 781  *              0 - success
 782  *              Any other value - error
 783  **/
 784 static int
 785 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 786 {
 787         LPFC_MBOXQ_t *pmb;
 788         int rc;
 789
 790         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 791         if (!pmb) {
 792                 phba->link_state = LPFC_HBA_ERROR;
 793                 return -ENOMEM;
 794         }
 795
 796         lpfc_printf_log(phba,
 797                 KERN_ERR, LOG_INIT,
 798                 "0491 Adapter Link is disabled.\n");
 799         lpfc_down_link(phba, pmb);
 800         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 801         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 802         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 803                 lpfc_printf_log(phba,
 804                 KERN_ERR, LOG_INIT,
 805                 "2522 Adapter failed to issue DOWN_LINK"
 806                 " mbox command rc 0x%x\n", rc);
 807
 808                 mempool_free(pmb, phba->mbox_mem_pool);
 809                 return -EIO;
 810         }
 811         if (flag == MBX_POLL)
 812                 mempool_free(pmb, phba->mbox_mem_pool);
 813
 814         return 0;
 815 }
 816
 817 /**
 818  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 819  * @phba: pointer to lpfc HBA data structure.
 820  *
 821  * This routine will do LPFC uninitialization before the HBA is reset when
 822  * bringing down the SLI Layer.
 823  *
 824  * Return codes
 825  *   0 - success.
 826  *   Any other value - error.
 827  **/
 828 int
 829 lpfc_hba_down_prep(struct lpfc_hba *phba)
 830 {
 831         struct lpfc_vport **vports;
 832         int i;
 833
 834         if (phba->sli_rev <= LPFC_SLI_REV3) {
 835                 /* Disable interrupts */
 836                 writel(0, phba->HCregaddr);
 837                 readl(phba->HCregaddr); /* flush */
 838         }
 839
 840         if (phba->pport->load_flag & FC_UNLOADING)
 841                 lpfc_cleanup_discovery_resources(phba->pport);
 842         else {
 843                 vports = lpfc_create_vport_work_array(phba);
 844                 if (vports != NULL)
 845                         for (i = 0; i <= phba->max_vports &&
 846                                 vports[i] != NULL; i++)
 847                                 lpfc_cleanup_discovery_resources(vports[i]);
 848                 lpfc_destroy_vport_work_array(phba, vports);
 849         }
 850         return 0;
 851 }
 852
 853 /**
 854  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 855  * rspiocb which got deferred
 856  *
 857  * @phba: pointer to lpfc HBA data structure.
 858  *
 859  * This routine will cleanup completed slow path events after HBA is reset
 860  * when bringing down the SLI Layer.
 861  *
 862  *
 863  * Return codes
 864  *   void.
 865  **/
 866 static void
 867 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 868 {
 869         struct lpfc_iocbq *rspiocbq;
 870         struct hbq_dmabuf *dmabuf;
 871         struct lpfc_cq_event *cq_event;
 872
 873         spin_lock_irq(&phba->hbalock);
 874         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 875         spin_unlock_irq(&phba->hbalock);
 876
 877         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 878                 /* Get the response iocb from the head of work queue */
 879                 spin_lock_irq(&phba->hbalock);
 880                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 881                                  cq_event, struct lpfc_cq_event, list);
 882                 spin_unlock_irq(&phba->hbalock);
 883
 884                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 885                 case CQE_CODE_COMPL_WQE:
 886                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 887                                                  cq_event);
 888                         lpfc_sli_release_iocbq(phba, rspiocbq);
 889                         break;
 890                 case CQE_CODE_RECEIVE:
 891                 case CQE_CODE_RECEIVE_V1:
 892                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 893                                               cq_event);
 894                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 895                 }
 896         }
 897 }
 898
 899 /**
 900  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 901  * @phba: pointer to lpfc HBA data structure.
 902  *
 903  * This routine will cleanup posted ELS buffers after the HBA is reset
 904  * when bringing down the SLI Layer.
 905  *
 906  *
 907  * Return codes
 908  *   void.
 909  **/
 910 static void
 911 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 912 {
 913         struct lpfc_sli *psli = &phba->sli;
 914         struct lpfc_sli_ring *pring;
 915         struct lpfc_dmabuf *mp, *next_mp;
 916         LIST_HEAD(buflist);
 917         int count;
 918
 919         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 920                 lpfc_sli_hbqbuf_free_all(phba);
 921         else {
 922                 /* Cleanup preposted buffers on the ELS ring */
 923                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 924                 spin_lock_irq(&phba->hbalock);
 925                 list_splice_init(&pring->postbufq, &buflist);
 926                 spin_unlock_irq(&phba->hbalock);
 927
 928                 count = 0;
 929                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 930                         list_del(&mp->list);
 931                         count++;
 932                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 933                         kfree(mp);
 934                 }
 935
 936                 spin_lock_irq(&phba->hbalock);
 937                 pring->postbufq_cnt -= count;
 938                 spin_unlock_irq(&phba->hbalock);
 939         }
 940 }
 941
 942 /**
 943  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 944  * @phba: pointer to lpfc HBA data structure.
 945  *
 946  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 947  * down the SLI Layer.
 948  *
 949  * Return codes
 950  *   void
 951  **/
 952 static void
 953 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 954 {
 955         struct lpfc_sli *psli = &phba->sli;
 956         struct lpfc_queue *qp = NULL;
 957         struct lpfc_sli_ring *pring;
 958         LIST_HEAD(completions);
 959         int i;
 960
 961         if (phba->sli_rev != LPFC_SLI_REV4) {
 962                 for (i = 0; i < psli->num_rings; i++) {
 963                         pring = &psli->sli3_ring[i];
 964                         spin_lock_irq(&phba->hbalock);
 965                         /* At this point in time the HBA is either reset or DOA
 966                          * Nothing should be on txcmplq as it will
 967                          * NEVER complete.
 968                          */
 969                         list_splice_init(&pring->txcmplq, &completions);
 970                         pring->txcmplq_cnt = 0;
 971                         spin_unlock_irq(&phba->hbalock);
 972
 973                         lpfc_sli_abort_iocb_ring(phba, pring);
 974                 }
 975                 /* Cancel all the IOCBs from the completions list */
 976                 lpfc_sli_cancel_iocbs(phba, &completions,
 977                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 978                 return;
 979         }
 980         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 981                 pring = qp->pring;
 982                 if (!pring)
 983                         continue;
 984                 spin_lock_irq(&pring->ring_lock);
 985                 list_splice_init(&pring->txcmplq, &completions);
 986                 pring->txcmplq_cnt = 0;
 987                 spin_unlock_irq(&pring->ring_lock);
 988                 lpfc_sli_abort_iocb_ring(phba, pring);
 989         }
 990         /* Cancel all the IOCBs from the completions list */
 991         lpfc_sli_cancel_iocbs(phba, &completions,
 992                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 993 }
 994
 995 /**
 996  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 997         int i;
 998  * @phba: pointer to lpfc HBA data structure.
 999  *
1000  * This routine will do uninitialization after the HBA is reset when bring
1001  * down the SLI Layer.
1002  *
1003  * Return codes
1004  *   0 - success.
1005  *   Any other value - error.
1006  **/
1007 static int
1008 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1009 {
1010         lpfc_hba_free_post_buf(phba);
1011         lpfc_hba_clean_txcmplq(phba);
1012         return 0;
1013 }
1014
1015 /**
1016  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1017  * @phba: pointer to lpfc HBA data structure.
1018  *
1019  * This routine will do uninitialization after the HBA is reset when bring
1020  * down the SLI Layer.
1021  *
1022  * Return codes
1023  *   0 - success.
1024  *   Any other value - error.
1025  **/
1026 static int
1027 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1028 {
1029         struct lpfc_scsi_buf *psb, *psb_next;
1030         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1031         LIST_HEAD(aborts);
1032         LIST_HEAD(nvme_aborts);
1033         LIST_HEAD(nvmet_aborts);
1034         unsigned long iflag = 0;
1035         struct lpfc_sglq *sglq_entry = NULL;
1036
1037
1038         lpfc_sli_hbqbuf_free_all(phba);
1039         lpfc_hba_clean_txcmplq(phba);
1040
1041         /* At this point in time the HBA is either reset or DOA. Either
1042          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1043          * on the lpfc_els_sgl_list so that it can either be freed if the
1044          * driver is unloading or reposted if the driver is restarting
1045          * the port.
1046          */
1047         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1048                                         /* scsl_buf_list */
1049         /* sgl_list_lock required because worker thread uses this
1050          * list.
1051          */
1052         spin_lock(&phba->sli4_hba.sgl_list_lock);
1053         list_for_each_entry(sglq_entry,
1054                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1055                 sglq_entry->state = SGL_FREED;
1056
1057         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1058                         &phba->sli4_hba.lpfc_els_sgl_list);
1059
1060
1061         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1062         /* abts_scsi_buf_list_lock required because worker thread uses this
1063          * list.
1064          */
1065         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
1066                 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1067                 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1068                                  &aborts);
1069                 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1070         }
1071
1072         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1073                 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1074                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list,
1075                                  &nvme_aborts);
1076                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1077                                  &nvmet_aborts);
1078                 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1079         }
1080
1081         spin_unlock_irq(&phba->hbalock);
1082
1083         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1084                 psb->pCmd = NULL;
1085                 psb->status = IOSTAT_SUCCESS;
1086         }
1087         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1088         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1089         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1090
1091         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1092                 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) {
1093                         psb->pCmd = NULL;
1094                         psb->status = IOSTAT_SUCCESS;
1095                 }
1096                 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
1097                 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put);
1098                 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
1099
1100                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1101                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1102                         lpfc_nvmet_rq_post(phba, ctxp, &ctxp->rqb_buffer->hbuf);
1103                 }
1104         }
1105
1106         lpfc_sli4_free_sp_events(phba);
1107         return 0;
1108 }
1109
1110 /**
1111  * lpfc_hba_down_post - Wrapper func for hba down post routine
1112  * @phba: pointer to lpfc HBA data structure.
1113  *
1114  * This routine wraps the actual SLI3 or SLI4 routine for performing
1115  * uninitialization after the HBA is reset when bring down the SLI Layer.
1116  *
1117  * Return codes
1118  *   0 - success.
1119  *   Any other value - error.
1120  **/
1121 int
1122 lpfc_hba_down_post(struct lpfc_hba *phba)
1123 {
1124         return (*phba->lpfc_hba_down_post)(phba);
1125 }
1126
1127 /**
1128  * lpfc_hb_timeout - The HBA-timer timeout handler
1129  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1130  *
1131  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1132  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1133  * work-port-events bitmap and the worker thread is notified. This timeout
1134  * event will be used by the worker thread to invoke the actual timeout
1135  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1136  * be performed in the timeout handler and the HBA timeout event bit shall
1137  * be cleared by the worker thread after it has taken the event bitmap out.
1138  **/
1139 static void
1140 lpfc_hb_timeout(unsigned long ptr)
1141 {
1142         struct lpfc_hba *phba;
1143         uint32_t tmo_posted;
1144         unsigned long iflag;
1145
1146         phba = (struct lpfc_hba *)ptr;
1147
1148         /* Check for heart beat timeout conditions */
1149         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1150         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1151         if (!tmo_posted)
1152                 phba->pport->work_port_events |= WORKER_HB_TMO;
1153         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1154
1155         /* Tell the worker thread there is work to do */
1156         if (!tmo_posted)
1157                 lpfc_worker_wake_up(phba);
1158         return;
1159 }
1160
1161 /**
1162  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1163  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1164  *
1165  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1166  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1167  * work-port-events bitmap and the worker thread is notified. This timeout
1168  * event will be used by the worker thread to invoke the actual timeout
1169  * handler routine, lpfc_rrq_handler. Any periodical operations will
1170  * be performed in the timeout handler and the RRQ timeout event bit shall
1171  * be cleared by the worker thread after it has taken the event bitmap out.
1172  **/
1173 static void
1174 lpfc_rrq_timeout(unsigned long ptr)
1175 {
1176         struct lpfc_hba *phba;
1177         unsigned long iflag;
1178
1179         phba = (struct lpfc_hba *)ptr;
1180         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1181         if (!(phba->pport->load_flag & FC_UNLOADING))
1182                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1183         else
1184                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1185         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1186
1187         if (!(phba->pport->load_flag & FC_UNLOADING))
1188                 lpfc_worker_wake_up(phba);
1189 }
1190
1191 /**
1192  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1193  * @phba: pointer to lpfc hba data structure.
1194  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1195  *
1196  * This is the callback function to the lpfc heart-beat mailbox command.
1197  * If configured, the lpfc driver issues the heart-beat mailbox command to
1198  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1199  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1200  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1201  * heart-beat outstanding state. Once the mailbox command comes back and
1202  * no error conditions detected, the heart-beat mailbox command timer is
1203  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1204  * state is cleared for the next heart-beat. If the timer expired with the
1205  * heart-beat outstanding state set, the driver will put the HBA offline.
1206  **/
1207 static void
1208 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1209 {
1210         unsigned long drvr_flag;
1211
1212         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1213         phba->hb_outstanding = 0;
1214         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1215
1216         /* Check and reset heart-beat timer is necessary */
1217         mempool_free(pmboxq, phba->mbox_mem_pool);
1218         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1219                 !(phba->link_state == LPFC_HBA_ERROR) &&
1220                 !(phba->pport->load_flag & FC_UNLOADING))
1221                 mod_timer(&phba->hb_tmofunc,
1222                           jiffies +
1223                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1224         return;
1225 }
1226
1227 /**
1228  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1229  * @phba: pointer to lpfc hba data structure.
1230  *
1231  * This is the actual HBA-timer timeout handler to be invoked by the worker
1232  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1233  * handler performs any periodic operations needed for the device. If such
1234  * periodic event has already been attended to either in the interrupt handler
1235  * or by processing slow-ring or fast-ring events within the HBA-timer
1236  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1237  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1238  * is configured and there is no heart-beat mailbox command outstanding, a
1239  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1240  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1241  * to offline.
1242  **/
1243 void
1244 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1245 {
1246         struct lpfc_vport **vports;
1247         LPFC_MBOXQ_t *pmboxq;
1248         struct lpfc_dmabuf *buf_ptr;
1249         int retval, i;
1250         struct lpfc_sli *psli = &phba->sli;
1251         LIST_HEAD(completions);
1252
1253         vports = lpfc_create_vport_work_array(phba);
1254         if (vports != NULL)
1255                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1256                         lpfc_rcv_seq_check_edtov(vports[i]);
1257                         lpfc_fdmi_num_disc_check(vports[i]);
1258                 }
1259         lpfc_destroy_vport_work_array(phba, vports);
1260
1261         if ((phba->link_state == LPFC_HBA_ERROR) ||
1262                 (phba->pport->load_flag & FC_UNLOADING) ||
1263                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1264                 return;
1265
1266         spin_lock_irq(&phba->pport->work_port_lock);
1267
1268         if (time_after(phba->last_completion_time +
1269                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1270                         jiffies)) {
1271                 spin_unlock_irq(&phba->pport->work_port_lock);
1272                 if (!phba->hb_outstanding)
1273                         mod_timer(&phba->hb_tmofunc,
1274                                 jiffies +
1275                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1276                 else
1277                         mod_timer(&phba->hb_tmofunc,
1278                                 jiffies +
1279                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1280                 return;
1281         }
1282         spin_unlock_irq(&phba->pport->work_port_lock);
1283
1284         if (phba->elsbuf_cnt &&
1285                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1286                 spin_lock_irq(&phba->hbalock);
1287                 list_splice_init(&phba->elsbuf, &completions);
1288                 phba->elsbuf_cnt = 0;
1289                 phba->elsbuf_prev_cnt = 0;
1290                 spin_unlock_irq(&phba->hbalock);
1291
1292                 while (!list_empty(&completions)) {
1293                         list_remove_head(&completions, buf_ptr,
1294                                 struct lpfc_dmabuf, list);
1295                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1296                         kfree(buf_ptr);
1297                 }
1298         }
1299         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1300
1301         /* If there is no heart beat outstanding, issue a heartbeat command */
1302         if (phba->cfg_enable_hba_heartbeat) {
1303                 if (!phba->hb_outstanding) {
1304                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1305                                 (list_empty(&psli->mboxq))) {
1306                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1307                                                         GFP_KERNEL);
1308                                 if (!pmboxq) {
1309                                         mod_timer(&phba->hb_tmofunc,
1310                                                  jiffies +
1311                                                  msecs_to_jiffies(1000 *
1312                                                  LPFC_HB_MBOX_INTERVAL));
1313                                         return;
1314                                 }
1315
1316                                 lpfc_heart_beat(phba, pmboxq);
1317                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1318                                 pmboxq->vport = phba->pport;
1319                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1320                                                 MBX_NOWAIT);
1321
1322                                 if (retval != MBX_BUSY &&
1323                                         retval != MBX_SUCCESS) {
1324                                         mempool_free(pmboxq,
1325                                                         phba->mbox_mem_pool);
1326                                         mod_timer(&phba->hb_tmofunc,
1327                                                 jiffies +
1328                                                 msecs_to_jiffies(1000 *
1329                                                 LPFC_HB_MBOX_INTERVAL));
1330                                         return;
1331                                 }
1332                                 phba->skipped_hb = 0;
1333                                 phba->hb_outstanding = 1;
1334                         } else if (time_before_eq(phba->last_completion_time,
1335                                         phba->skipped_hb)) {
1336                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1337                                         "2857 Last completion time not "
1338                                         " updated in %d ms\n",
1339                                         jiffies_to_msecs(jiffies
1340                                                  - phba->last_completion_time));
1341                         } else
1342                                 phba->skipped_hb = jiffies;
1343
1344                         mod_timer(&phba->hb_tmofunc,
1345                                  jiffies +
1346                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1347                         return;
1348                 } else {
1349                         /*
1350                         * If heart beat timeout called with hb_outstanding set
1351                         * we need to give the hb mailbox cmd a chance to
1352                         * complete or TMO.
1353                         */
1354                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1355                                         "0459 Adapter heartbeat still out"
1356                                         "standing:last compl time was %d ms.\n",
1357                                         jiffies_to_msecs(jiffies
1358                                                  - phba->last_completion_time));
1359                         mod_timer(&phba->hb_tmofunc,
1360                                 jiffies +
1361                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1362                 }
1363         } else {
1364                         mod_timer(&phba->hb_tmofunc,
1365                                 jiffies +
1366                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1367         }
1368 }
1369
1370 /**
1371  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1372  * @phba: pointer to lpfc hba data structure.
1373  *
1374  * This routine is called to bring the HBA offline when HBA hardware error
1375  * other than Port Error 6 has been detected.
1376  **/
1377 static void
1378 lpfc_offline_eratt(struct lpfc_hba *phba)
1379 {
1380         struct lpfc_sli   *psli = &phba->sli;
1381
1382         spin_lock_irq(&phba->hbalock);
1383         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1384         spin_unlock_irq(&phba->hbalock);
1385         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1386
1387         lpfc_offline(phba);
1388         lpfc_reset_barrier(phba);
1389         spin_lock_irq(&phba->hbalock);
1390         lpfc_sli_brdreset(phba);
1391         spin_unlock_irq(&phba->hbalock);
1392         lpfc_hba_down_post(phba);
1393         lpfc_sli_brdready(phba, HS_MBRDY);
1394         lpfc_unblock_mgmt_io(phba);
1395         phba->link_state = LPFC_HBA_ERROR;
1396         return;
1397 }
1398
1399 /**
1400  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1401  * @phba: pointer to lpfc hba data structure.
1402  *
1403  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1404  * other than Port Error 6 has been detected.
1405  **/
1406 void
1407 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1408 {
1409         spin_lock_irq(&phba->hbalock);
1410         phba->link_state = LPFC_HBA_ERROR;
1411         spin_unlock_irq(&phba->hbalock);
1412
1413         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1414         lpfc_offline(phba);
1415         lpfc_hba_down_post(phba);
1416         lpfc_unblock_mgmt_io(phba);
1417 }
1418
1419 /**
1420  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1421  * @phba: pointer to lpfc hba data structure.
1422  *
1423  * This routine is invoked to handle the deferred HBA hardware error
1424  * conditions. This type of error is indicated by HBA by setting ER1
1425  * and another ER bit in the host status register. The driver will
1426  * wait until the ER1 bit clears before handling the error condition.
1427  **/
1428 static void
1429 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1430 {
1431         uint32_t old_host_status = phba->work_hs;
1432         struct lpfc_sli *psli = &phba->sli;
1433
1434         /* If the pci channel is offline, ignore possible errors,
1435          * since we cannot communicate with the pci card anyway.
1436          */
1437         if (pci_channel_offline(phba->pcidev)) {
1438                 spin_lock_irq(&phba->hbalock);
1439                 phba->hba_flag &= ~DEFER_ERATT;
1440                 spin_unlock_irq(&phba->hbalock);
1441                 return;
1442         }
1443
1444         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1445                 "0479 Deferred Adapter Hardware Error "
1446                 "Data: x%x x%x x%x\n",
1447                 phba->work_hs,
1448                 phba->work_status[0], phba->work_status[1]);
1449
1450         spin_lock_irq(&phba->hbalock);
1451         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1452         spin_unlock_irq(&phba->hbalock);
1453
1454
1455         /*
1456          * Firmware stops when it triggred erratt. That could cause the I/Os
1457          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1458          * SCSI layer retry it after re-establishing link.
1459          */
1460         lpfc_sli_abort_fcp_rings(phba);
1461
1462         /*
1463          * There was a firmware error. Take the hba offline and then
1464          * attempt to restart it.
1465          */
1466         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1467         lpfc_offline(phba);
1468
1469         /* Wait for the ER1 bit to clear.*/
1470         while (phba->work_hs & HS_FFER1) {
1471                 msleep(100);
1472                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1473                         phba->work_hs = UNPLUG_ERR ;
1474                         break;
1475                 }
1476                 /* If driver is unloading let the worker thread continue */
1477                 if (phba->pport->load_flag & FC_UNLOADING) {
1478                         phba->work_hs = 0;
1479                         break;
1480                 }
1481         }
1482
1483         /*
1484          * This is to ptrotect against a race condition in which
1485          * first write to the host attention register clear the
1486          * host status register.
1487          */
1488         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1489                 phba->work_hs = old_host_status & ~HS_FFER1;
1490
1491         spin_lock_irq(&phba->hbalock);
1492         phba->hba_flag &= ~DEFER_ERATT;
1493         spin_unlock_irq(&phba->hbalock);
1494         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1495         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1496 }
1497
1498 static void
1499 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1500 {
1501         struct lpfc_board_event_header board_event;
1502         struct Scsi_Host *shost;
1503
1504         board_event.event_type = FC_REG_BOARD_EVENT;
1505         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1506         shost = lpfc_shost_from_vport(phba->pport);
1507         fc_host_post_vendor_event(shost, fc_get_event_number(),
1508                                   sizeof(board_event),
1509                                   (char *) &board_event,
1510                                   LPFC_NL_VENDOR_ID);
1511 }
1512
1513 /**
1514  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1515  * @phba: pointer to lpfc hba data structure.
1516  *
1517  * This routine is invoked to handle the following HBA hardware error
1518  * conditions:
1519  * 1 - HBA error attention interrupt
1520  * 2 - DMA ring index out of range
1521  * 3 - Mailbox command came back as unknown
1522  **/
1523 static void
1524 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1525 {
1526         struct lpfc_vport *vport = phba->pport;
1527         struct lpfc_sli   *psli = &phba->sli;
1528         uint32_t event_data;
1529         unsigned long temperature;
1530         struct temp_event temp_event_data;
1531         struct Scsi_Host  *shost;
1532
1533         /* If the pci channel is offline, ignore possible errors,
1534          * since we cannot communicate with the pci card anyway.
1535          */
1536         if (pci_channel_offline(phba->pcidev)) {
1537                 spin_lock_irq(&phba->hbalock);
1538                 phba->hba_flag &= ~DEFER_ERATT;
1539                 spin_unlock_irq(&phba->hbalock);
1540                 return;
1541         }
1542
1543         /* If resets are disabled then leave the HBA alone and return */
1544         if (!phba->cfg_enable_hba_reset)
1545                 return;
1546
1547         /* Send an internal error event to mgmt application */
1548         lpfc_board_errevt_to_mgmt(phba);
1549
1550         if (phba->hba_flag & DEFER_ERATT)
1551                 lpfc_handle_deferred_eratt(phba);
1552
1553         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1554                 if (phba->work_hs & HS_FFER6)
1555                         /* Re-establishing Link */
1556                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1557                                         "1301 Re-establishing Link "
1558                                         "Data: x%x x%x x%x\n",
1559                                         phba->work_hs, phba->work_status[0],
1560                                         phba->work_status[1]);
1561                 if (phba->work_hs & HS_FFER8)
1562                         /* Device Zeroization */
1563                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1564                                         "2861 Host Authentication device "
1565                                         "zeroization Data:x%x x%x x%x\n",
1566                                         phba->work_hs, phba->work_status[0],
1567                                         phba->work_status[1]);
1568
1569                 spin_lock_irq(&phba->hbalock);
1570                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1571                 spin_unlock_irq(&phba->hbalock);
1572
1573                 /*
1574                 * Firmware stops when it triggled erratt with HS_FFER6.
1575                 * That could cause the I/Os dropped by the firmware.
1576                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1577                 * retry it after re-establishing link.
1578                 */
1579                 lpfc_sli_abort_fcp_rings(phba);
1580
1581                 /*
1582                  * There was a firmware error.  Take the hba offline and then
1583                  * attempt to restart it.
1584                  */
1585                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1586                 lpfc_offline(phba);
1587                 lpfc_sli_brdrestart(phba);
1588                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1589                         lpfc_unblock_mgmt_io(phba);
1590                         return;
1591                 }
1592                 lpfc_unblock_mgmt_io(phba);
1593         } else if (phba->work_hs & HS_CRIT_TEMP) {
1594                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1595                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1596                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1597                 temp_event_data.data = (uint32_t)temperature;
1598
1599                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1600                                 "0406 Adapter maximum temperature exceeded "
1601                                 "(%ld), taking this port offline "
1602                                 "Data: x%x x%x x%x\n",
1603                                 temperature, phba->work_hs,
1604                                 phba->work_status[0], phba->work_status[1]);
1605
1606                 shost = lpfc_shost_from_vport(phba->pport);
1607                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1608                                           sizeof(temp_event_data),
1609                                           (char *) &temp_event_data,
1610                                           SCSI_NL_VID_TYPE_PCI
1611                                           | PCI_VENDOR_ID_EMULEX);
1612
1613                 spin_lock_irq(&phba->hbalock);
1614                 phba->over_temp_state = HBA_OVER_TEMP;
1615                 spin_unlock_irq(&phba->hbalock);
1616                 lpfc_offline_eratt(phba);
1617
1618         } else {
1619                 /* The if clause above forces this code path when the status
1620                  * failure is a value other than FFER6. Do not call the offline
1621                  * twice. This is the adapter hardware error path.
1622                  */
1623                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1624                                 "0457 Adapter Hardware Error "
1625                                 "Data: x%x x%x x%x\n",
1626                                 phba->work_hs,
1627                                 phba->work_status[0], phba->work_status[1]);
1628
1629                 event_data = FC_REG_DUMP_EVENT;
1630                 shost = lpfc_shost_from_vport(vport);
1631                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1632                                 sizeof(event_data), (char *) &event_data,
1633                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1634
1635                 lpfc_offline_eratt(phba);
1636         }
1637         return;
1638 }
1639
1640 /**
1641  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1642  * @phba: pointer to lpfc hba data structure.
1643  * @mbx_action: flag for mailbox shutdown action.
1644  *
1645  * This routine is invoked to perform an SLI4 port PCI function reset in
1646  * response to port status register polling attention. It waits for port
1647  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1648  * During this process, interrupt vectors are freed and later requested
1649  * for handling possible port resource change.
1650  **/
1651 static int
1652 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1653                             bool en_rn_msg)
1654 {
1655         int rc;
1656         uint32_t intr_mode;
1657
1658         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1659             LPFC_SLI_INTF_IF_TYPE_2) {
1660                 /*
1661                  * On error status condition, driver need to wait for port
1662                  * ready before performing reset.
1663                  */
1664                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1665                 if (rc)
1666                         return rc;
1667         }
1668
1669         /* need reset: attempt for port recovery */
1670         if (en_rn_msg)
1671                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1672                                 "2887 Reset Needed: Attempting Port "
1673                                 "Recovery...\n");
1674         lpfc_offline_prep(phba, mbx_action);
1675         lpfc_offline(phba);
1676         /* release interrupt for possible resource change */
1677         lpfc_sli4_disable_intr(phba);
1678         lpfc_sli_brdrestart(phba);
1679         /* request and enable interrupt */
1680         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1681         if (intr_mode == LPFC_INTR_ERROR) {
1682                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1683                                 "3175 Failed to enable interrupt\n");
1684                 return -EIO;
1685         }
1686         phba->intr_mode = intr_mode;
1687         rc = lpfc_online(phba);
1688         if (rc == 0)
1689                 lpfc_unblock_mgmt_io(phba);
1690
1691         return rc;
1692 }
1693
1694 /**
1695  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1696  * @phba: pointer to lpfc hba data structure.
1697  *
1698  * This routine is invoked to handle the SLI4 HBA hardware error attention
1699  * conditions.
1700  **/
1701 static void
1702 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1703 {
1704         struct lpfc_vport *vport = phba->pport;
1705         uint32_t event_data;
1706         struct Scsi_Host *shost;
1707         uint32_t if_type;
1708         struct lpfc_register portstat_reg = {0};
1709         uint32_t reg_err1, reg_err2;
1710         uint32_t uerrlo_reg, uemasklo_reg;
1711         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1712         bool en_rn_msg = true;
1713         struct temp_event temp_event_data;
1714         struct lpfc_register portsmphr_reg;
1715         int rc, i;
1716
1717         /* If the pci channel is offline, ignore possible errors, since
1718          * we cannot communicate with the pci card anyway.
1719          */
1720         if (pci_channel_offline(phba->pcidev))
1721                 return;
1722
1723         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1724         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1725         switch (if_type) {
1726         case LPFC_SLI_INTF_IF_TYPE_0:
1727                 pci_rd_rc1 = lpfc_readl(
1728                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1729                                 &uerrlo_reg);
1730                 pci_rd_rc2 = lpfc_readl(
1731                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1732                                 &uemasklo_reg);
1733                 /* consider PCI bus read error as pci_channel_offline */
1734                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1735                         return;
1736                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1737                         lpfc_sli4_offline_eratt(phba);
1738                         return;
1739                 }
1740                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1741                                 "7623 Checking UE recoverable");
1742
1743                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1744                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1745                                        &portsmphr_reg.word0))
1746                                 continue;
1747
1748                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1749                                                    &portsmphr_reg);
1750                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1751                             LPFC_PORT_SEM_UE_RECOVERABLE)
1752                                 break;
1753                         /*Sleep for 1Sec, before checking SEMAPHORE */
1754                         msleep(1000);
1755                 }
1756
1757                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1758                                 "4827 smphr_port_status x%x : Waited %dSec",
1759                                 smphr_port_status, i);
1760
1761                 /* Recoverable UE, reset the HBA device */
1762                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1763                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1764                         for (i = 0; i < 20; i++) {
1765                                 msleep(1000);
1766                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1767                                     &portsmphr_reg.word0) &&
1768                                     (LPFC_POST_STAGE_PORT_READY ==
1769                                      bf_get(lpfc_port_smphr_port_status,
1770                                      &portsmphr_reg))) {
1771                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1772                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1773                                         if (rc == 0)
1774                                                 return;
1775                                         lpfc_printf_log(phba,
1776                                                 KERN_ERR, LOG_INIT,
1777                                                 "4215 Failed to recover UE");
1778                                         break;
1779                                 }
1780                         }
1781                 }
1782                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1783                                 "7624 Firmware not ready: Failing UE recovery,"
1784                                 " waited %dSec", i);
1785                 lpfc_sli4_offline_eratt(phba);
1786                 break;
1787
1788         case LPFC_SLI_INTF_IF_TYPE_2:
1789                 pci_rd_rc1 = lpfc_readl(
1790                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1791                                 &portstat_reg.word0);
1792                 /* consider PCI bus read error as pci_channel_offline */
1793                 if (pci_rd_rc1 == -EIO) {
1794                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1795                                 "3151 PCI bus read access failure: x%x\n",
1796                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1797                         return;
1798                 }
1799                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1800                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1801                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1802                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1803                                 "2889 Port Overtemperature event, "
1804                                 "taking port offline Data: x%x x%x\n",
1805                                 reg_err1, reg_err2);
1806
1807                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1808                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1809                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1810                         temp_event_data.data = 0xFFFFFFFF;
1811
1812                         shost = lpfc_shost_from_vport(phba->pport);
1813                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1814                                                   sizeof(temp_event_data),
1815                                                   (char *)&temp_event_data,
1816                                                   SCSI_NL_VID_TYPE_PCI
1817                                                   | PCI_VENDOR_ID_EMULEX);
1818
1819                         spin_lock_irq(&phba->hbalock);
1820                         phba->over_temp_state = HBA_OVER_TEMP;
1821                         spin_unlock_irq(&phba->hbalock);
1822                         lpfc_sli4_offline_eratt(phba);
1823                         return;
1824                 }
1825                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1826                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1827                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1828                                         "3143 Port Down: Firmware Update "
1829                                         "Detected\n");
1830                         en_rn_msg = false;
1831                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1832                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1833                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1834                                         "3144 Port Down: Debug Dump\n");
1835                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1836                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1837                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1838                                         "3145 Port Down: Provisioning\n");
1839
1840                 /* If resets are disabled then leave the HBA alone and return */
1841                 if (!phba->cfg_enable_hba_reset)
1842                         return;
1843
1844                 /* Check port status register for function reset */
1845                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1846                                 en_rn_msg);
1847                 if (rc == 0) {
1848                         /* don't report event on forced debug dump */
1849                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1850                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1851                                 return;
1852                         else
1853                                 break;
1854                 }
1855                 /* fall through for not able to recover */
1856                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1857                                 "3152 Unrecoverable error, bring the port "
1858                                 "offline\n");
1859                 lpfc_sli4_offline_eratt(phba);
1860                 break;
1861         case LPFC_SLI_INTF_IF_TYPE_1:
1862         default:
1863                 break;
1864         }
1865         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1866                         "3123 Report dump event to upper layer\n");
1867         /* Send an internal error event to mgmt application */
1868         lpfc_board_errevt_to_mgmt(phba);
1869
1870         event_data = FC_REG_DUMP_EVENT;
1871         shost = lpfc_shost_from_vport(vport);
1872         fc_host_post_vendor_event(shost, fc_get_event_number(),
1873                                   sizeof(event_data), (char *) &event_data,
1874                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1875 }
1876
1877 /**
1878  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1879  * @phba: pointer to lpfc HBA data structure.
1880  *
1881  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1882  * routine from the API jump table function pointer from the lpfc_hba struct.
1883  *
1884  * Return codes
1885  *   0 - success.
1886  *   Any other value - error.
1887  **/
1888 void
1889 lpfc_handle_eratt(struct lpfc_hba *phba)
1890 {
1891         (*phba->lpfc_handle_eratt)(phba);
1892 }
1893
1894 /**
1895  * lpfc_handle_latt - The HBA link event handler
1896  * @phba: pointer to lpfc hba data structure.
1897  *
1898  * This routine is invoked from the worker thread to handle a HBA host
1899  * attention link event. SLI3 only.
1900  **/
1901 void
1902 lpfc_handle_latt(struct lpfc_hba *phba)
1903 {
1904         struct lpfc_vport *vport = phba->pport;
1905         struct lpfc_sli   *psli = &phba->sli;
1906         LPFC_MBOXQ_t *pmb;
1907         volatile uint32_t control;
1908         struct lpfc_dmabuf *mp;
1909         int rc = 0;
1910
1911         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1912         if (!pmb) {
1913                 rc = 1;
1914                 goto lpfc_handle_latt_err_exit;
1915         }
1916
1917         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1918         if (!mp) {
1919                 rc = 2;
1920                 goto lpfc_handle_latt_free_pmb;
1921         }
1922
1923         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1924         if (!mp->virt) {
1925                 rc = 3;
1926                 goto lpfc_handle_latt_free_mp;
1927         }
1928
1929         /* Cleanup any outstanding ELS commands */
1930         lpfc_els_flush_all_cmd(phba);
1931
1932         psli->slistat.link_event++;
1933         lpfc_read_topology(phba, pmb, mp);
1934         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1935         pmb->vport = vport;
1936         /* Block ELS IOCBs until we have processed this mbox command */
1937         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1938         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1939         if (rc == MBX_NOT_FINISHED) {
1940                 rc = 4;
1941                 goto lpfc_handle_latt_free_mbuf;
1942         }
1943
1944         /* Clear Link Attention in HA REG */
1945         spin_lock_irq(&phba->hbalock);
1946         writel(HA_LATT, phba->HAregaddr);
1947         readl(phba->HAregaddr); /* flush */
1948         spin_unlock_irq(&phba->hbalock);
1949
1950         return;
1951
1952 lpfc_handle_latt_free_mbuf:
1953         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1954         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1955 lpfc_handle_latt_free_mp:
1956         kfree(mp);
1957 lpfc_handle_latt_free_pmb:
1958         mempool_free(pmb, phba->mbox_mem_pool);
1959 lpfc_handle_latt_err_exit:
1960         /* Enable Link attention interrupts */
1961         spin_lock_irq(&phba->hbalock);
1962         psli->sli_flag |= LPFC_PROCESS_LA;
1963         control = readl(phba->HCregaddr);
1964         control |= HC_LAINT_ENA;
1965         writel(control, phba->HCregaddr);
1966         readl(phba->HCregaddr); /* flush */
1967
1968         /* Clear Link Attention in HA REG */
1969         writel(HA_LATT, phba->HAregaddr);
1970         readl(phba->HAregaddr); /* flush */
1971         spin_unlock_irq(&phba->hbalock);
1972         lpfc_linkdown(phba);
1973         phba->link_state = LPFC_HBA_ERROR;
1974
1975         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1976                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1977
1978         return;
1979 }
1980
1981 /**
1982  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1983  * @phba: pointer to lpfc hba data structure.
1984  * @vpd: pointer to the vital product data.
1985  * @len: length of the vital product data in bytes.
1986  *
1987  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1988  * an array of characters. In this routine, the ModelName, ProgramType, and
1989  * ModelDesc, etc. fields of the phba data structure will be populated.
1990  *
1991  * Return codes
1992  *   0 - pointer to the VPD passed in is NULL
1993  *   1 - success
1994  **/
1995 int
1996 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1997 {
1998         uint8_t lenlo, lenhi;
1999         int Length;
2000         int i, j;
2001         int finished = 0;
2002         int index = 0;
2003
2004         if (!vpd)
2005                 return 0;
2006
2007         /* Vital Product */
2008         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2009                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2010                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2011                         (uint32_t) vpd[3]);
2012         while (!finished && (index < (len - 4))) {
2013                 switch (vpd[index]) {
2014                 case 0x82:
2015                 case 0x91:
2016                         index += 1;
2017                         lenlo = vpd[index];
2018                         index += 1;
2019                         lenhi = vpd[index];
2020                         index += 1;
2021                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2022                         index += i;
2023                         break;
2024                 case 0x90:
2025                         index += 1;
2026                         lenlo = vpd[index];
2027                         index += 1;
2028                         lenhi = vpd[index];
2029                         index += 1;
2030                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2031                         if (Length > len - index)
2032                                 Length = len - index;
2033                         while (Length > 0) {
2034                         /* Look for Serial Number */
2035                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2036                                 index += 2;
2037                                 i = vpd[index];
2038                                 index += 1;
2039                                 j = 0;
2040                                 Length -= (3+i);
2041                                 while(i--) {
2042                                         phba->SerialNumber[j++] = vpd[index++];
2043                                         if (j == 31)
2044                                                 break;
2045                                 }
2046                                 phba->SerialNumber[j] = 0;
2047                                 continue;
2048                         }
2049                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2050                                 phba->vpd_flag |= VPD_MODEL_DESC;
2051                                 index += 2;
2052                                 i = vpd[index];
2053                                 index += 1;
2054                                 j = 0;
2055                                 Length -= (3+i);
2056                                 while(i--) {
2057                                         phba->ModelDesc[j++] = vpd[index++];
2058                                         if (j == 255)
2059                                                 break;
2060                                 }
2061                                 phba->ModelDesc[j] = 0;
2062                                 continue;
2063                         }
2064                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2065                                 phba->vpd_flag |= VPD_MODEL_NAME;
2066                                 index += 2;
2067                                 i = vpd[index];
2068                                 index += 1;
2069                                 j = 0;
2070                                 Length -= (3+i);
2071                                 while(i--) {
2072                                         phba->ModelName[j++] = vpd[index++];
2073                                         if (j == 79)
2074                                                 break;
2075                                 }
2076                                 phba->ModelName[j] = 0;
2077                                 continue;
2078                         }
2079                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2080                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2081                                 index += 2;
2082                                 i = vpd[index];
2083                                 index += 1;
2084                                 j = 0;
2085                                 Length -= (3+i);
2086                                 while(i--) {
2087                                         phba->ProgramType[j++] = vpd[index++];
2088                                         if (j == 255)
2089                                                 break;
2090                                 }
2091                                 phba->ProgramType[j] = 0;
2092                                 continue;
2093                         }
2094                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2095                                 phba->vpd_flag |= VPD_PORT;
2096                                 index += 2;
2097                                 i = vpd[index];
2098                                 index += 1;
2099                                 j = 0;
2100                                 Length -= (3+i);
2101                                 while(i--) {
2102                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2103                                             (phba->sli4_hba.pport_name_sta ==
2104                                              LPFC_SLI4_PPNAME_GET)) {
2105                                                 j++;
2106                                                 index++;
2107                                         } else
2108                                                 phba->Port[j++] = vpd[index++];
2109                                         if (j == 19)
2110                                                 break;
2111                                 }
2112                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2113                                     (phba->sli4_hba.pport_name_sta ==
2114                                      LPFC_SLI4_PPNAME_NON))
2115                                         phba->Port[j] = 0;
2116                                 continue;
2117                         }
2118                         else {
2119                                 index += 2;
2120                                 i = vpd[index];
2121                                 index += 1;
2122                                 index += i;
2123                                 Length -= (3 + i);
2124                         }
2125                 }
2126                 finished = 0;
2127                 break;
2128                 case 0x78:
2129                         finished = 1;
2130                         break;
2131                 default:
2132                         index ++;
2133                         break;
2134                 }
2135         }
2136
2137         return(1);
2138 }
2139
2140 /**
2141  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2142  * @phba: pointer to lpfc hba data structure.
2143  * @mdp: pointer to the data structure to hold the derived model name.
2144  * @descp: pointer to the data structure to hold the derived description.
2145  *
2146  * This routine retrieves HBA's description based on its registered PCI device
2147  * ID. The @descp passed into this function points to an array of 256 chars. It
2148  * shall be returned with the model name, maximum speed, and the host bus type.
2149  * The @mdp passed into this function points to an array of 80 chars. When the
2150  * function returns, the @mdp will be filled with the model name.
2151  **/
2152 static void
2153 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2154 {
2155         lpfc_vpd_t *vp;
2156         uint16_t dev_id = phba->pcidev->device;
2157         int max_speed;
2158         int GE = 0;
2159         int oneConnect = 0; /* default is not a oneConnect */
2160         struct {
2161                 char *name;
2162                 char *bus;
2163                 char *function;
2164         } m = {"<Unknown>", "", ""};
2165
2166         if (mdp && mdp[0] != '\0'
2167                 && descp && descp[0] != '\0')
2168                 return;
2169
2170         if (phba->lmt & LMT_32Gb)
2171                 max_speed = 32;
2172         else if (phba->lmt & LMT_16Gb)
2173                 max_speed = 16;
2174         else if (phba->lmt & LMT_10Gb)
2175                 max_speed = 10;
2176         else if (phba->lmt & LMT_8Gb)
2177                 max_speed = 8;
2178         else if (phba->lmt & LMT_4Gb)
2179                 max_speed = 4;
2180         else if (phba->lmt & LMT_2Gb)
2181                 max_speed = 2;
2182         else if (phba->lmt & LMT_1Gb)
2183                 max_speed = 1;
2184         else
2185                 max_speed = 0;
2186
2187         vp = &phba->vpd;
2188
2189         switch (dev_id) {
2190         case PCI_DEVICE_ID_FIREFLY:
2191                 m = (typeof(m)){"LP6000", "PCI",
2192                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2193                 break;
2194         case PCI_DEVICE_ID_SUPERFLY:
2195                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2196                         m = (typeof(m)){"LP7000", "PCI", ""};
2197                 else
2198                         m = (typeof(m)){"LP7000E", "PCI", ""};
2199                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2200                 break;
2201         case PCI_DEVICE_ID_DRAGONFLY:
2202                 m = (typeof(m)){"LP8000", "PCI",
2203                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2204                 break;
2205         case PCI_DEVICE_ID_CENTAUR:
2206                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2207                         m = (typeof(m)){"LP9002", "PCI", ""};
2208                 else
2209                         m = (typeof(m)){"LP9000", "PCI", ""};
2210                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2211                 break;
2212         case PCI_DEVICE_ID_RFLY:
2213                 m = (typeof(m)){"LP952", "PCI",
2214                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2215                 break;
2216         case PCI_DEVICE_ID_PEGASUS:
2217                 m = (typeof(m)){"LP9802", "PCI-X",
2218                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2219                 break;
2220         case PCI_DEVICE_ID_THOR:
2221                 m = (typeof(m)){"LP10000", "PCI-X",
2222                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2223                 break;
2224         case PCI_DEVICE_ID_VIPER:
2225                 m = (typeof(m)){"LPX1000",  "PCI-X",
2226                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2227                 break;
2228         case PCI_DEVICE_ID_PFLY:
2229                 m = (typeof(m)){"LP982", "PCI-X",
2230                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2231                 break;
2232         case PCI_DEVICE_ID_TFLY:
2233                 m = (typeof(m)){"LP1050", "PCI-X",
2234                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2235                 break;
2236         case PCI_DEVICE_ID_HELIOS:
2237                 m = (typeof(m)){"LP11000", "PCI-X2",
2238                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2239                 break;
2240         case PCI_DEVICE_ID_HELIOS_SCSP:
2241                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2242                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2243                 break;
2244         case PCI_DEVICE_ID_HELIOS_DCSP:
2245                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2246                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2247                 break;
2248         case PCI_DEVICE_ID_NEPTUNE:
2249                 m = (typeof(m)){"LPe1000", "PCIe",
2250                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2251                 break;
2252         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2253                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2254                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2255                 break;
2256         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2257                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2258                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2259                 break;
2260         case PCI_DEVICE_ID_BMID:
2261                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2262                 break;
2263         case PCI_DEVICE_ID_BSMB:
2264                 m = (typeof(m)){"LP111", "PCI-X2",
2265                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2266                 break;
2267         case PCI_DEVICE_ID_ZEPHYR:
2268                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2269                 break;
2270         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2271                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2272                 break;
2273         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2274                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2275                 GE = 1;
2276                 break;
2277         case PCI_DEVICE_ID_ZMID:
2278                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2279                 break;
2280         case PCI_DEVICE_ID_ZSMB:
2281                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2282                 break;
2283         case PCI_DEVICE_ID_LP101:
2284                 m = (typeof(m)){"LP101", "PCI-X",
2285                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2286                 break;
2287         case PCI_DEVICE_ID_LP10000S:
2288                 m = (typeof(m)){"LP10000-S", "PCI",
2289                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2290                 break;
2291         case PCI_DEVICE_ID_LP11000S:
2292                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2293                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2294                 break;
2295         case PCI_DEVICE_ID_LPE11000S:
2296                 m = (typeof(m)){"LPe11000-S", "PCIe",
2297                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2298                 break;
2299         case PCI_DEVICE_ID_SAT:
2300                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2301                 break;
2302         case PCI_DEVICE_ID_SAT_MID:
2303                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2304                 break;
2305         case PCI_DEVICE_ID_SAT_SMB:
2306                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2307                 break;
2308         case PCI_DEVICE_ID_SAT_DCSP:
2309                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2310                 break;
2311         case PCI_DEVICE_ID_SAT_SCSP:
2312                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2313                 break;
2314         case PCI_DEVICE_ID_SAT_S:
2315                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2316                 break;
2317         case PCI_DEVICE_ID_HORNET:
2318                 m = (typeof(m)){"LP21000", "PCIe",
2319                                 "Obsolete, Unsupported FCoE Adapter"};
2320                 GE = 1;
2321                 break;
2322         case PCI_DEVICE_ID_PROTEUS_VF:
2323                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2324                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2325                 break;
2326         case PCI_DEVICE_ID_PROTEUS_PF:
2327                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2328                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2329                 break;
2330         case PCI_DEVICE_ID_PROTEUS_S:
2331                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2332                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2333                 break;
2334         case PCI_DEVICE_ID_TIGERSHARK:
2335                 oneConnect = 1;
2336                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2337                 break;
2338         case PCI_DEVICE_ID_TOMCAT:
2339                 oneConnect = 1;
2340                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2341                 break;
2342         case PCI_DEVICE_ID_FALCON:
2343                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2344                                 "EmulexSecure Fibre"};
2345                 break;
2346         case PCI_DEVICE_ID_BALIUS:
2347                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2348                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2349                 break;
2350         case PCI_DEVICE_ID_LANCER_FC:
2351                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2352                 break;
2353         case PCI_DEVICE_ID_LANCER_FC_VF:
2354                 m = (typeof(m)){"LPe16000", "PCIe",
2355                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2356                 break;
2357         case PCI_DEVICE_ID_LANCER_FCOE:
2358                 oneConnect = 1;
2359                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2360                 break;
2361         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2362                 oneConnect = 1;
2363                 m = (typeof(m)){"OCe15100", "PCIe",
2364                                 "Obsolete, Unsupported FCoE"};
2365                 break;
2366         case PCI_DEVICE_ID_LANCER_G6_FC:
2367                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2368                 break;
2369         case PCI_DEVICE_ID_SKYHAWK:
2370         case PCI_DEVICE_ID_SKYHAWK_VF:
2371                 oneConnect = 1;
2372                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2373                 break;
2374         default:
2375                 m = (typeof(m)){"Unknown", "", ""};
2376                 break;
2377         }
2378
2379         if (mdp && mdp[0] == '\0')
2380                 snprintf(mdp, 79,"%s", m.name);
2381         /*
2382          * oneConnect hba requires special processing, they are all initiators
2383          * and we put the port number on the end
2384          */
2385         if (descp && descp[0] == '\0') {
2386                 if (oneConnect)
2387                         snprintf(descp, 255,
2388                                 "Emulex OneConnect %s, %s Initiator %s",
2389                                 m.name, m.function,
2390                                 phba->Port);
2391                 else if (max_speed == 0)
2392                         snprintf(descp, 255,
2393                                 "Emulex %s %s %s",
2394                                 m.name, m.bus, m.function);
2395                 else
2396                         snprintf(descp, 255,
2397                                 "Emulex %s %d%s %s %s",
2398                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2399                                 m.bus, m.function);
2400         }
2401 }
2402
2403 /**
2404  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2405  * @phba: pointer to lpfc hba data structure.
2406  * @pring: pointer to a IOCB ring.
2407  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2408  *
2409  * This routine posts a given number of IOCBs with the associated DMA buffer
2410  * descriptors specified by the cnt argument to the given IOCB ring.
2411  *
2412  * Return codes
2413  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2414  **/
2415 int
2416 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2417 {
2418         IOCB_t *icmd;
2419         struct lpfc_iocbq *iocb;
2420         struct lpfc_dmabuf *mp1, *mp2;
2421
2422         cnt += pring->missbufcnt;
2423
2424         /* While there are buffers to post */
2425         while (cnt > 0) {
2426                 /* Allocate buffer for  command iocb */
2427                 iocb = lpfc_sli_get_iocbq(phba);
2428                 if (iocb == NULL) {
2429                         pring->missbufcnt = cnt;
2430                         return cnt;
2431                 }
2432                 icmd = &iocb->iocb;
2433
2434                 /* 2 buffers can be posted per command */
2435                 /* Allocate buffer to post */
2436                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2437                 if (mp1)
2438                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2439                 if (!mp1 || !mp1->virt) {
2440                         kfree(mp1);
2441                         lpfc_sli_release_iocbq(phba, iocb);
2442                         pring->missbufcnt = cnt;
2443                         return cnt;
2444                 }
2445
2446                 INIT_LIST_HEAD(&mp1->list);
2447                 /* Allocate buffer to post */
2448                 if (cnt > 1) {
2449                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2450                         if (mp2)
2451                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2452                                                             &mp2->phys);
2453                         if (!mp2 || !mp2->virt) {
2454                                 kfree(mp2);
2455                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2456                                 kfree(mp1);
2457                                 lpfc_sli_release_iocbq(phba, iocb);
2458                                 pring->missbufcnt = cnt;
2459                                 return cnt;
2460                         }
2461
2462                         INIT_LIST_HEAD(&mp2->list);
2463                 } else {
2464                         mp2 = NULL;
2465                 }
2466
2467                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2468                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2469                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2470                 icmd->ulpBdeCount = 1;
2471                 cnt--;
2472                 if (mp2) {
2473                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2474                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2475                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2476                         cnt--;
2477                         icmd->ulpBdeCount = 2;
2478                 }
2479
2480                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2481                 icmd->ulpLe = 1;
2482
2483                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2484                     IOCB_ERROR) {
2485                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2486                         kfree(mp1);
2487                         cnt++;
2488                         if (mp2) {
2489                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2490                                 kfree(mp2);
2491                                 cnt++;
2492                         }
2493                         lpfc_sli_release_iocbq(phba, iocb);
2494                         pring->missbufcnt = cnt;
2495                         return cnt;
2496                 }
2497                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2498                 if (mp2)
2499                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2500         }
2501         pring->missbufcnt = 0;
2502         return 0;
2503 }
2504
2505 /**
2506  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2507  * @phba: pointer to lpfc hba data structure.
2508  *
2509  * This routine posts initial receive IOCB buffers to the ELS ring. The
2510  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2511  * set to 64 IOCBs. SLI3 only.
2512  *
2513  * Return codes
2514  *   0 - success (currently always success)
2515  **/
2516 static int
2517 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2518 {
2519         struct lpfc_sli *psli = &phba->sli;
2520
2521         /* Ring 0, ELS / CT buffers */
2522         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2523         /* Ring 2 - FCP no buffers needed */
2524
2525         return 0;
2526 }
2527
2528 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2529
2530 /**
2531  * lpfc_sha_init - Set up initial array of hash table entries
2532  * @HashResultPointer: pointer to an array as hash table.
2533  *
2534  * This routine sets up the initial values to the array of hash table entries
2535  * for the LC HBAs.
2536  **/
2537 static void
2538 lpfc_sha_init(uint32_t * HashResultPointer)
2539 {
2540         HashResultPointer[0] = 0x67452301;
2541         HashResultPointer[1] = 0xEFCDAB89;
2542         HashResultPointer[2] = 0x98BADCFE;
2543         HashResultPointer[3] = 0x10325476;
2544         HashResultPointer[4] = 0xC3D2E1F0;
2545 }
2546
2547 /**
2548  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2549  * @HashResultPointer: pointer to an initial/result hash table.
2550  * @HashWorkingPointer: pointer to an working hash table.
2551  *
2552  * This routine iterates an initial hash table pointed by @HashResultPointer
2553  * with the values from the working hash table pointeed by @HashWorkingPointer.
2554  * The results are putting back to the initial hash table, returned through
2555  * the @HashResultPointer as the result hash table.
2556  **/
2557 static void
2558 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2559 {
2560         int t;
2561         uint32_t TEMP;
2562         uint32_t A, B, C, D, E;
2563         t = 16;
2564         do {
2565                 HashWorkingPointer[t] =
2566                     S(1,
2567                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2568                                                                      8] ^
2569                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2570         } while (++t <= 79);
2571         t = 0;
2572         A = HashResultPointer[0];
2573         B = HashResultPointer[1];
2574         C = HashResultPointer[2];
2575         D = HashResultPointer[3];
2576         E = HashResultPointer[4];
2577
2578         do {
2579                 if (t < 20) {
2580                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2581                 } else if (t < 40) {
2582                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2583                 } else if (t < 60) {
2584                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2585                 } else {
2586                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2587                 }
2588                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2589                 E = D;
2590                 D = C;
2591                 C = S(30, B);
2592                 B = A;
2593                 A = TEMP;
2594         } while (++t <= 79);
2595
2596         HashResultPointer[0] += A;
2597         HashResultPointer[1] += B;
2598         HashResultPointer[2] += C;
2599         HashResultPointer[3] += D;
2600         HashResultPointer[4] += E;
2601
2602 }
2603
2604 /**
2605  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2606  * @RandomChallenge: pointer to the entry of host challenge random number array.
2607  * @HashWorking: pointer to the entry of the working hash array.
2608  *
2609  * This routine calculates the working hash array referred by @HashWorking
2610  * from the challenge random numbers associated with the host, referred by
2611  * @RandomChallenge. The result is put into the entry of the working hash
2612  * array and returned by reference through @HashWorking.
2613  **/
2614 static void
2615 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2616 {
2617         *HashWorking = (*RandomChallenge ^ *HashWorking);
2618 }
2619
2620 /**
2621  * lpfc_hba_init - Perform special handling for LC HBA initialization
2622  * @phba: pointer to lpfc hba data structure.
2623  * @hbainit: pointer to an array of unsigned 32-bit integers.
2624  *
2625  * This routine performs the special handling for LC HBA initialization.
2626  **/
2627 void
2628 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2629 {
2630         int t;
2631         uint32_t *HashWorking;
2632         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2633
2634         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2635         if (!HashWorking)
2636                 return;
2637
2638         HashWorking[0] = HashWorking[78] = *pwwnn++;
2639         HashWorking[1] = HashWorking[79] = *pwwnn;
2640
2641         for (t = 0; t < 7; t++)
2642                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2643
2644         lpfc_sha_init(hbainit);
2645         lpfc_sha_iterate(hbainit, HashWorking);
2646         kfree(HashWorking);
2647 }
2648
2649 /**
2650  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2651  * @vport: pointer to a virtual N_Port data structure.
2652  *
2653  * This routine performs the necessary cleanups before deleting the @vport.
2654  * It invokes the discovery state machine to perform necessary state
2655  * transitions and to release the ndlps associated with the @vport. Note,
2656  * the physical port is treated as @vport 0.
2657  **/
2658 void
2659 lpfc_cleanup(struct lpfc_vport *vport)
2660 {
2661         struct lpfc_hba   *phba = vport->phba;
2662         struct lpfc_nodelist *ndlp, *next_ndlp;
2663         int i = 0;
2664
2665         if (phba->link_state > LPFC_LINK_DOWN)
2666                 lpfc_port_link_failure(vport);
2667
2668         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2669                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2670                         ndlp = lpfc_enable_node(vport, ndlp,
2671                                                 NLP_STE_UNUSED_NODE);
2672                         if (!ndlp)
2673                                 continue;
2674                         spin_lock_irq(&phba->ndlp_lock);
2675                         NLP_SET_FREE_REQ(ndlp);
2676                         spin_unlock_irq(&phba->ndlp_lock);
2677                         /* Trigger the release of the ndlp memory */
2678                         lpfc_nlp_put(ndlp);
2679                         continue;
2680                 }
2681                 spin_lock_irq(&phba->ndlp_lock);
2682                 if (NLP_CHK_FREE_REQ(ndlp)) {
2683                         /* The ndlp should not be in memory free mode already */
2684                         spin_unlock_irq(&phba->ndlp_lock);
2685                         continue;
2686                 } else
2687                         /* Indicate request for freeing ndlp memory */
2688                         NLP_SET_FREE_REQ(ndlp);
2689                 spin_unlock_irq(&phba->ndlp_lock);
2690
2691                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2692                     ndlp->nlp_DID == Fabric_DID) {
2693                         /* Just free up ndlp with Fabric_DID for vports */
2694                         lpfc_nlp_put(ndlp);
2695                         continue;
2696                 }
2697
2698                 /* take care of nodes in unused state before the state
2699                  * machine taking action.
2700                  */
2701                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2702                         lpfc_nlp_put(ndlp);
2703                         continue;
2704                 }
2705
2706                 if (ndlp->nlp_type & NLP_FABRIC)
2707                         lpfc_disc_state_machine(vport, ndlp, NULL,
2708                                         NLP_EVT_DEVICE_RECOVERY);
2709
2710                 if (ndlp->nlp_fc4_type & NLP_FC4_NVME) {
2711                         /* Remove the NVME transport reference now and
2712                          * continue to remove the node.
2713                          */
2714                         lpfc_nlp_put(ndlp);
2715                 }
2716
2717                 lpfc_disc_state_machine(vport, ndlp, NULL,
2718                                              NLP_EVT_DEVICE_RM);
2719         }
2720
2721         /* At this point, ALL ndlp's should be gone
2722          * because of the previous NLP_EVT_DEVICE_RM.
2723          * Lets wait for this to happen, if needed.
2724          */
2725         while (!list_empty(&vport->fc_nodes)) {
2726                 if (i++ > 3000) {
2727                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2728                                 "0233 Nodelist not empty\n");
2729                         list_for_each_entry_safe(ndlp, next_ndlp,
2730                                                 &vport->fc_nodes, nlp_listp) {
2731                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2732                                                 LOG_NODE,
2733                                                 "0282 did:x%x ndlp:x%p "
2734                                                 "usgmap:x%x refcnt:%d\n",
2735                                                 ndlp->nlp_DID, (void *)ndlp,
2736                                                 ndlp->nlp_usg_map,
2737                                                 kref_read(&ndlp->kref));
2738                         }
2739                         break;
2740                 }
2741
2742                 /* Wait for any activity on ndlps to settle */
2743                 msleep(10);
2744         }
2745         lpfc_cleanup_vports_rrqs(vport, NULL);
2746 }
2747
2748 /**
2749  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2750  * @vport: pointer to a virtual N_Port data structure.
2751  *
2752  * This routine stops all the timers associated with a @vport. This function
2753  * is invoked before disabling or deleting a @vport. Note that the physical
2754  * port is treated as @vport 0.
2755  **/
2756 void
2757 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2758 {
2759         del_timer_sync(&vport->els_tmofunc);
2760         del_timer_sync(&vport->delayed_disc_tmo);
2761         lpfc_can_disctmo(vport);
2762         return;
2763 }
2764
2765 /**
2766  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2767  * @phba: pointer to lpfc hba data structure.
2768  *
2769  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2770  * caller of this routine should already hold the host lock.
2771  **/
2772 void
2773 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2774 {
2775         /* Clear pending FCF rediscovery wait flag */
2776         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2777
2778         /* Now, try to stop the timer */
2779         del_timer(&phba->fcf.redisc_wait);
2780 }
2781
2782 /**
2783  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2784  * @phba: pointer to lpfc hba data structure.
2785  *
2786  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2787  * checks whether the FCF rediscovery wait timer is pending with the host
2788  * lock held before proceeding with disabling the timer and clearing the
2789  * wait timer pendig flag.
2790  **/
2791 void
2792 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2793 {
2794         spin_lock_irq(&phba->hbalock);
2795         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2796                 /* FCF rediscovery timer already fired or stopped */
2797                 spin_unlock_irq(&phba->hbalock);
2798                 return;
2799         }
2800         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2801         /* Clear failover in progress flags */
2802         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2803         spin_unlock_irq(&phba->hbalock);
2804 }
2805
2806 /**
2807  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2808  * @phba: pointer to lpfc hba data structure.
2809  *
2810  * This routine stops all the timers associated with a HBA. This function is
2811  * invoked before either putting a HBA offline or unloading the driver.
2812  **/
2813 void
2814 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2815 {
2816         lpfc_stop_vport_timers(phba->pport);
2817         del_timer_sync(&phba->sli.mbox_tmo);
2818         del_timer_sync(&phba->fabric_block_timer);
2819         del_timer_sync(&phba->eratt_poll);
2820         del_timer_sync(&phba->hb_tmofunc);
2821         if (phba->sli_rev == LPFC_SLI_REV4) {
2822                 del_timer_sync(&phba->rrq_tmr);
2823                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2824         }
2825         phba->hb_outstanding = 0;
2826
2827         switch (phba->pci_dev_grp) {
2828         case LPFC_PCI_DEV_LP:
2829                 /* Stop any LightPulse device specific driver timers */
2830                 del_timer_sync(&phba->fcp_poll_timer);
2831                 break;
2832         case LPFC_PCI_DEV_OC:
2833                 /* Stop any OneConnect device sepcific driver timers */
2834                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2835                 break;
2836         default:
2837                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2838                                 "0297 Invalid device group (x%x)\n",
2839                                 phba->pci_dev_grp);
2840                 break;
2841         }
2842         return;
2843 }
2844
2845 /**
2846  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2847  * @phba: pointer to lpfc hba data structure.
2848  *
2849  * This routine marks a HBA's management interface as blocked. Once the HBA's
2850  * management interface is marked as blocked, all the user space access to
2851  * the HBA, whether they are from sysfs interface or libdfc interface will
2852  * all be blocked. The HBA is set to block the management interface when the
2853  * driver prepares the HBA interface for online or offline.
2854  **/
2855 static void
2856 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2857 {
2858         unsigned long iflag;
2859         uint8_t actcmd = MBX_HEARTBEAT;
2860         unsigned long timeout;
2861
2862         spin_lock_irqsave(&phba->hbalock, iflag);
2863         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2864         spin_unlock_irqrestore(&phba->hbalock, iflag);
2865         if (mbx_action == LPFC_MBX_NO_WAIT)
2866                 return;
2867         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2868         spin_lock_irqsave(&phba->hbalock, iflag);
2869         if (phba->sli.mbox_active) {
2870                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2871                 /* Determine how long we might wait for the active mailbox
2872                  * command to be gracefully completed by firmware.
2873                  */
2874                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2875                                 phba->sli.mbox_active) * 1000) + jiffies;
2876         }
2877         spin_unlock_irqrestore(&phba->hbalock, iflag);
2878
2879         /* Wait for the outstnading mailbox command to complete */
2880         while (phba->sli.mbox_active) {
2881                 /* Check active mailbox complete status every 2ms */
2882                 msleep(2);
2883                 if (time_after(jiffies, timeout)) {
2884                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2885                                 "2813 Mgmt IO is Blocked %x "
2886                                 "- mbox cmd %x still active\n",
2887                                 phba->sli.sli_flag, actcmd);
2888                         break;
2889                 }
2890         }
2891 }
2892
2893 /**
2894  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2895  * @phba: pointer to lpfc hba data structure.
2896  *
2897  * Allocate RPIs for all active remote nodes. This is needed whenever
2898  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2899  * is to fixup the temporary rpi assignments.
2900  **/
2901 void
2902 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2903 {
2904         struct lpfc_nodelist  *ndlp, *next_ndlp;
2905         struct lpfc_vport **vports;
2906         int i, rpi;
2907         unsigned long flags;
2908
2909         if (phba->sli_rev != LPFC_SLI_REV4)
2910                 return;
2911
2912         vports = lpfc_create_vport_work_array(phba);
2913         if (vports == NULL)
2914                 return;
2915
2916         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2917                 if (vports[i]->load_flag & FC_UNLOADING)
2918                         continue;
2919
2920                 list_for_each_entry_safe(ndlp, next_ndlp,
2921                                          &vports[i]->fc_nodes,
2922                                          nlp_listp) {
2923                         if (!NLP_CHK_NODE_ACT(ndlp))
2924                                 continue;
2925                         rpi = lpfc_sli4_alloc_rpi(phba);
2926                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
2927                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
2928                                 NLP_CLR_NODE_ACT(ndlp);
2929                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2930                                 continue;
2931                         }
2932                         ndlp->nlp_rpi = rpi;
2933                         lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
2934                                          "0009 rpi:%x DID:%x "
2935                                          "flg:%x map:%x %p\n", ndlp->nlp_rpi,
2936                                          ndlp->nlp_DID, ndlp->nlp_flag,
2937                                          ndlp->nlp_usg_map, ndlp);
2938                 }
2939         }
2940         lpfc_destroy_vport_work_array(phba, vports);
2941 }
2942
2943 /**
2944  * lpfc_online - Initialize and bring a HBA online
2945  * @phba: pointer to lpfc hba data structure.
2946  *
2947  * This routine initializes the HBA and brings a HBA online. During this
2948  * process, the management interface is blocked to prevent user space access
2949  * to the HBA interfering with the driver initialization.
2950  *
2951  * Return codes
2952  *   0 - successful
2953  *   1 - failed
2954  **/
2955 int
2956 lpfc_online(struct lpfc_hba *phba)
2957 {
2958         struct lpfc_vport *vport;
2959         struct lpfc_vport **vports;
2960         int i;
2961         bool vpis_cleared = false;
2962
2963         if (!phba)
2964                 return 0;
2965         vport = phba->pport;
2966
2967         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2968                 return 0;
2969
2970         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2971                         "0458 Bring Adapter online\n");
2972
2973         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2974
2975         if (phba->sli_rev == LPFC_SLI_REV4) {
2976                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2977                         lpfc_unblock_mgmt_io(phba);
2978                         return 1;
2979                 }
2980                 spin_lock_irq(&phba->hbalock);
2981                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2982                         vpis_cleared = true;
2983                 spin_unlock_irq(&phba->hbalock);
2984         } else {
2985                 lpfc_sli_queue_init(phba);
2986                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2987                         lpfc_unblock_mgmt_io(phba);
2988                         return 1;
2989                 }
2990         }
2991
2992         vports = lpfc_create_vport_work_array(phba);
2993         if (vports != NULL) {
2994                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2995                         struct Scsi_Host *shost;
2996                         shost = lpfc_shost_from_vport(vports[i]);
2997                         spin_lock_irq(shost->host_lock);
2998                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2999                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3000                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3001                         if (phba->sli_rev == LPFC_SLI_REV4) {
3002                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3003                                 if ((vpis_cleared) &&
3004                                     (vports[i]->port_type !=
3005                                         LPFC_PHYSICAL_PORT))
3006                                         vports[i]->vpi = 0;
3007                         }
3008                         spin_unlock_irq(shost->host_lock);
3009                 }
3010         }
3011         lpfc_destroy_vport_work_array(phba, vports);
3012
3013         lpfc_unblock_mgmt_io(phba);
3014         return 0;
3015 }
3016
3017 /**
3018  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3019  * @phba: pointer to lpfc hba data structure.
3020  *
3021  * This routine marks a HBA's management interface as not blocked. Once the
3022  * HBA's management interface is marked as not blocked, all the user space
3023  * access to the HBA, whether they are from sysfs interface or libdfc
3024  * interface will be allowed. The HBA is set to block the management interface
3025  * when the driver prepares the HBA interface for online or offline and then
3026  * set to unblock the management interface afterwards.
3027  **/
3028 void
3029 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3030 {
3031         unsigned long iflag;
3032
3033         spin_lock_irqsave(&phba->hbalock, iflag);
3034         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3035         spin_unlock_irqrestore(&phba->hbalock, iflag);
3036 }
3037
3038 /**
3039  * lpfc_offline_prep - Prepare a HBA to be brought offline
3040  * @phba: pointer to lpfc hba data structure.
3041  *
3042  * This routine is invoked to prepare a HBA to be brought offline. It performs
3043  * unregistration login to all the nodes on all vports and flushes the mailbox
3044  * queue to make it ready to be brought offline.
3045  **/
3046 void
3047 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3048 {
3049         struct lpfc_vport *vport = phba->pport;
3050         struct lpfc_nodelist  *ndlp, *next_ndlp;
3051         struct lpfc_vport **vports;
3052         struct Scsi_Host *shost;
3053         int i;
3054
3055         if (vport->fc_flag & FC_OFFLINE_MODE)
3056                 return;
3057
3058         lpfc_block_mgmt_io(phba, mbx_action);
3059
3060         lpfc_linkdown(phba);
3061
3062         /* Issue an unreg_login to all nodes on all vports */
3063         vports = lpfc_create_vport_work_array(phba);
3064         if (vports != NULL) {
3065                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3066                         if (vports[i]->load_flag & FC_UNLOADING)
3067                                 continue;
3068                         shost = lpfc_shost_from_vport(vports[i]);
3069                         spin_lock_irq(shost->host_lock);
3070                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3071                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3072                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3073                         spin_unlock_irq(shost->host_lock);
3074
3075                         shost = lpfc_shost_from_vport(vports[i]);
3076                         list_for_each_entry_safe(ndlp, next_ndlp,
3077                                                  &vports[i]->fc_nodes,
3078                                                  nlp_listp) {
3079                                 if (!NLP_CHK_NODE_ACT(ndlp))
3080                                         continue;
3081                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3082                                         continue;
3083                                 if (ndlp->nlp_type & NLP_FABRIC) {
3084                                         lpfc_disc_state_machine(vports[i], ndlp,
3085                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3086                                         lpfc_disc_state_machine(vports[i], ndlp,
3087                                                 NULL, NLP_EVT_DEVICE_RM);
3088                                 }
3089                                 spin_lock_irq(shost->host_lock);
3090                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3091                                 spin_unlock_irq(shost->host_lock);
3092                                 /*
3093                                  * Whenever an SLI4 port goes offline, free the
3094                                  * RPI. Get a new RPI when the adapter port
3095                                  * comes back online.
3096                                  */
3097                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3098                                         lpfc_printf_vlog(ndlp->vport,
3099                                                          KERN_INFO, LOG_NODE,
3100                                                          "0011 lpfc_offline: "
3101                                                          "ndlp:x%p did %x "
3102                                                          "usgmap:x%x rpi:%x\n",
3103                                                          ndlp, ndlp->nlp_DID,
3104                                                          ndlp->nlp_usg_map,
3105                                                          ndlp->nlp_rpi);
3106
3107                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3108                                 }
3109                                 lpfc_unreg_rpi(vports[i], ndlp);
3110                         }
3111                 }
3112         }
3113         lpfc_destroy_vport_work_array(phba, vports);
3114
3115         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3116 }
3117
3118 /**
3119  * lpfc_offline - Bring a HBA offline
3120  * @phba: pointer to lpfc hba data structure.
3121  *
3122  * This routine actually brings a HBA offline. It stops all the timers
3123  * associated with the HBA, brings down the SLI layer, and eventually
3124  * marks the HBA as in offline state for the upper layer protocol.
3125  **/
3126 void
3127 lpfc_offline(struct lpfc_hba *phba)
3128 {
3129         struct Scsi_Host  *shost;
3130         struct lpfc_vport **vports;
3131         int i;
3132
3133         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3134                 return;
3135
3136         /* stop port and all timers associated with this hba */
3137         lpfc_stop_port(phba);
3138         vports = lpfc_create_vport_work_array(phba);
3139         if (vports != NULL)
3140                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3141                         lpfc_stop_vport_timers(vports[i]);
3142         lpfc_destroy_vport_work_array(phba, vports);
3143         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3144                         "0460 Bring Adapter offline\n");
3145         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3146            now.  */
3147         lpfc_sli_hba_down(phba);
3148         spin_lock_irq(&phba->hbalock);
3149         phba->work_ha = 0;
3150         spin_unlock_irq(&phba->hbalock);
3151         vports = lpfc_create_vport_work_array(phba);
3152         if (vports != NULL)
3153                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3154                         shost = lpfc_shost_from_vport(vports[i]);
3155                         spin_lock_irq(shost->host_lock);
3156                         vports[i]->work_port_events = 0;
3157                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3158                         spin_unlock_irq(shost->host_lock);
3159                 }
3160         lpfc_destroy_vport_work_array(phba, vports);
3161 }
3162
3163 /**
3164  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3165  * @phba: pointer to lpfc hba data structure.
3166  *
3167  * This routine is to free all the SCSI buffers and IOCBs from the driver
3168  * list back to kernel. It is called from lpfc_pci_remove_one to free
3169  * the internal resources before the device is removed from the system.
3170  **/
3171 static void
3172 lpfc_scsi_free(struct lpfc_hba *phba)
3173 {
3174         struct lpfc_scsi_buf *sb, *sb_next;
3175
3176         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3177                 return;
3178
3179         spin_lock_irq(&phba->hbalock);
3180
3181         /* Release all the lpfc_scsi_bufs maintained by this host. */
3182
3183         spin_lock(&phba->scsi_buf_list_put_lock);
3184         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3185                                  list) {
3186                 list_del(&sb->list);
3187                 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3188                               sb->dma_handle);
3189                 kfree(sb);
3190                 phba->total_scsi_bufs--;
3191         }
3192         spin_unlock(&phba->scsi_buf_list_put_lock);
3193
3194         spin_lock(&phba->scsi_buf_list_get_lock);
3195         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3196                                  list) {
3197                 list_del(&sb->list);
3198                 pci_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3199                               sb->dma_handle);
3200                 kfree(sb);
3201                 phba->total_scsi_bufs--;
3202         }
3203         spin_unlock(&phba->scsi_buf_list_get_lock);
3204         spin_unlock_irq(&phba->hbalock);
3205 }
3206 /**
3207  * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists
3208  * @phba: pointer to lpfc hba data structure.
3209  *
3210  * This routine is to free all the NVME buffers and IOCBs from the driver
3211  * list back to kernel. It is called from lpfc_pci_remove_one to free
3212  * the internal resources before the device is removed from the system.
3213  **/
3214 static void
3215 lpfc_nvme_free(struct lpfc_hba *phba)
3216 {
3217         struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
3218
3219         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3220                 return;
3221
3222         spin_lock_irq(&phba->hbalock);
3223
3224         /* Release all the lpfc_nvme_bufs maintained by this host. */
3225         spin_lock(&phba->nvme_buf_list_put_lock);
3226         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3227                                  &phba->lpfc_nvme_buf_list_put, list) {
3228                 list_del(&lpfc_ncmd->list);
3229                 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3230                               lpfc_ncmd->dma_handle);
3231                 kfree(lpfc_ncmd);
3232                 phba->total_nvme_bufs--;
3233         }
3234         spin_unlock(&phba->nvme_buf_list_put_lock);
3235
3236         spin_lock(&phba->nvme_buf_list_get_lock);
3237         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3238                                  &phba->lpfc_nvme_buf_list_get, list) {
3239                 list_del(&lpfc_ncmd->list);
3240                 pci_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3241                               lpfc_ncmd->dma_handle);
3242                 kfree(lpfc_ncmd);
3243                 phba->total_nvme_bufs--;
3244         }
3245         spin_unlock(&phba->nvme_buf_list_get_lock);
3246         spin_unlock_irq(&phba->hbalock);
3247 }
3248 /**
3249  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3250  * @phba: pointer to lpfc hba data structure.
3251  *
3252  * This routine first calculates the sizes of the current els and allocated
3253  * scsi sgl lists, and then goes through all sgls to updates the physical
3254  * XRIs assigned due to port function reset. During port initialization, the
3255  * current els and allocated scsi sgl lists are 0s.
3256  *
3257  * Return codes
3258  *   0 - successful (for now, it always returns 0)
3259  **/
3260 int
3261 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3262 {
3263         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3264         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3265         LIST_HEAD(els_sgl_list);
3266         int rc;
3267
3268         /*
3269          * update on pci function's els xri-sgl list
3270          */
3271         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3272
3273         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3274                 /* els xri-sgl expanded */
3275                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3276                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3277                                 "3157 ELS xri-sgl count increased from "
3278                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3279                                 els_xri_cnt);
3280                 /* allocate the additional els sgls */
3281                 for (i = 0; i < xri_cnt; i++) {
3282                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3283                                              GFP_KERNEL);
3284                         if (sglq_entry == NULL) {
3285                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3286                                                 "2562 Failure to allocate an "
3287                                                 "ELS sgl entry:%d\n", i);
3288                                 rc = -ENOMEM;
3289                                 goto out_free_mem;
3290                         }
3291                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3292                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3293                                                            &sglq_entry->phys);
3294                         if (sglq_entry->virt == NULL) {
3295                                 kfree(sglq_entry);
3296                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3297                                                 "2563 Failure to allocate an "
3298                                                 "ELS mbuf:%d\n", i);
3299                                 rc = -ENOMEM;
3300                                 goto out_free_mem;
3301                         }
3302                         sglq_entry->sgl = sglq_entry->virt;
3303                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3304                         sglq_entry->state = SGL_FREED;
3305                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3306                 }
3307                 spin_lock_irq(&phba->hbalock);
3308                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3309                 list_splice_init(&els_sgl_list,
3310                                  &phba->sli4_hba.lpfc_els_sgl_list);
3311                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3312                 spin_unlock_irq(&phba->hbalock);
3313         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3314                 /* els xri-sgl shrinked */
3315                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3316                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3317                                 "3158 ELS xri-sgl count decreased from "
3318                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3319                                 els_xri_cnt);
3320                 spin_lock_irq(&phba->hbalock);
3321                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3322                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3323                                  &els_sgl_list);
3324                 /* release extra els sgls from list */
3325                 for (i = 0; i < xri_cnt; i++) {
3326                         list_remove_head(&els_sgl_list,
3327                                          sglq_entry, struct lpfc_sglq, list);
3328                         if (sglq_entry) {
3329                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3330                                                  sglq_entry->phys);
3331                                 kfree(sglq_entry);
3332                         }
3333                 }
3334                 list_splice_init(&els_sgl_list,
3335                                  &phba->sli4_hba.lpfc_els_sgl_list);
3336                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3337                 spin_unlock_irq(&phba->hbalock);
3338         } else
3339                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3340                                 "3163 ELS xri-sgl count unchanged: %d\n",
3341                                 els_xri_cnt);
3342         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3343
3344         /* update xris to els sgls on the list */
3345         sglq_entry = NULL;
3346         sglq_entry_next = NULL;
3347         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3348                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3349                 lxri = lpfc_sli4_next_xritag(phba);
3350                 if (lxri == NO_XRI) {
3351                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3352                                         "2400 Failed to allocate xri for "
3353                                         "ELS sgl\n");
3354                         rc = -ENOMEM;
3355                         goto out_free_mem;
3356                 }
3357                 sglq_entry->sli4_lxritag = lxri;
3358                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3359         }
3360         return 0;
3361
3362 out_free_mem:
3363         lpfc_free_els_sgl_list(phba);
3364         return rc;
3365 }
3366
3367 /**
3368  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3369  * @phba: pointer to lpfc hba data structure.
3370  *
3371  * This routine first calculates the sizes of the current els and allocated
3372  * scsi sgl lists, and then goes through all sgls to updates the physical
3373  * XRIs assigned due to port function reset. During port initialization, the
3374  * current els and allocated scsi sgl lists are 0s.
3375  *
3376  * Return codes
3377  *   0 - successful (for now, it always returns 0)
3378  **/
3379 int
3380 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3381 {
3382         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3383         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3384         uint16_t nvmet_xri_cnt, tot_cnt;
3385         LIST_HEAD(nvmet_sgl_list);
3386         int rc;
3387
3388         /*
3389          * update on pci function's nvmet xri-sgl list
3390          */
3391         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3392         nvmet_xri_cnt = phba->cfg_nvmet_mrq * phba->cfg_nvmet_mrq_post;
3393         tot_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3394         if (nvmet_xri_cnt > tot_cnt) {
3395                 phba->cfg_nvmet_mrq_post = tot_cnt / phba->cfg_nvmet_mrq;
3396                 nvmet_xri_cnt = phba->cfg_nvmet_mrq * phba->cfg_nvmet_mrq_post;
3397                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3398                                 "6301 NVMET post-sgl count changed to %d\n",
3399                                 phba->cfg_nvmet_mrq_post);
3400         }
3401
3402         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3403                 /* els xri-sgl expanded */
3404                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3405                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3406                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3407                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3408                 /* allocate the additional nvmet sgls */
3409                 for (i = 0; i < xri_cnt; i++) {
3410                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3411                                              GFP_KERNEL);
3412                         if (sglq_entry == NULL) {
3413                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3414                                                 "6303 Failure to allocate an "
3415                                                 "NVMET sgl entry:%d\n", i);
3416                                 rc = -ENOMEM;
3417                                 goto out_free_mem;
3418                         }
3419                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3420                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3421                                                            &sglq_entry->phys);
3422                         if (sglq_entry->virt == NULL) {
3423                                 kfree(sglq_entry);
3424                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3425                                                 "6304 Failure to allocate an "
3426                                                 "NVMET buf:%d\n", i);
3427                                 rc = -ENOMEM;
3428                                 goto out_free_mem;
3429                         }
3430                         sglq_entry->sgl = sglq_entry->virt;
3431                         memset(sglq_entry->sgl, 0,
3432                                phba->cfg_sg_dma_buf_size);
3433                         sglq_entry->state = SGL_FREED;
3434                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3435                 }
3436                 spin_lock_irq(&phba->hbalock);
3437                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3438                 list_splice_init(&nvmet_sgl_list,
3439                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3440                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3441                 spin_unlock_irq(&phba->hbalock);
3442         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3443                 /* nvmet xri-sgl shrunk */
3444                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3445                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3446                                 "6305 NVMET xri-sgl count decreased from "
3447                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3448                                 nvmet_xri_cnt);
3449                 spin_lock_irq(&phba->hbalock);
3450                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3451                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3452                                  &nvmet_sgl_list);
3453                 /* release extra nvmet sgls from list */
3454                 for (i = 0; i < xri_cnt; i++) {
3455                         list_remove_head(&nvmet_sgl_list,
3456                                          sglq_entry, struct lpfc_sglq, list);
3457                         if (sglq_entry) {
3458                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3459                                                     sglq_entry->phys);
3460                                 kfree(sglq_entry);
3461                         }
3462                 }
3463                 list_splice_init(&nvmet_sgl_list,
3464                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3465                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3466                 spin_unlock_irq(&phba->hbalock);
3467         } else
3468                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3469                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3470                                 nvmet_xri_cnt);
3471         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3472
3473         /* update xris to nvmet sgls on the list */
3474         sglq_entry = NULL;
3475         sglq_entry_next = NULL;
3476         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3477                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3478                 lxri = lpfc_sli4_next_xritag(phba);
3479                 if (lxri == NO_XRI) {
3480                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3481                                         "6307 Failed to allocate xri for "
3482                                         "NVMET sgl\n");
3483                         rc = -ENOMEM;
3484                         goto out_free_mem;
3485                 }
3486                 sglq_entry->sli4_lxritag = lxri;
3487                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3488         }
3489         return 0;
3490
3491 out_free_mem:
3492         lpfc_free_nvmet_sgl_list(phba);
3493         return rc;
3494 }
3495
3496 /**
3497  * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping
3498  * @phba: pointer to lpfc hba data structure.
3499  *
3500  * This routine first calculates the sizes of the current els and allocated
3501  * scsi sgl lists, and then goes through all sgls to updates the physical
3502  * XRIs assigned due to port function reset. During port initialization, the
3503  * current els and allocated scsi sgl lists are 0s.
3504  *
3505  * Return codes
3506  *   0 - successful (for now, it always returns 0)
3507  **/
3508 int
3509 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba)
3510 {
3511         struct lpfc_scsi_buf *psb, *psb_next;
3512         uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt;
3513         LIST_HEAD(scsi_sgl_list);
3514         int rc;
3515
3516         /*
3517          * update on pci function's els xri-sgl list
3518          */
3519         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3520         phba->total_scsi_bufs = 0;
3521
3522         /*
3523          * update on pci function's allocated scsi xri-sgl list
3524          */
3525         /* maximum number of xris available for scsi buffers */
3526         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3527                                       els_xri_cnt;
3528
3529         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3530                 return 0;
3531
3532         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3533                 phba->sli4_hba.scsi_xri_max =  /* Split them up */
3534                         (phba->sli4_hba.scsi_xri_max *
3535                          phba->cfg_xri_split) / 100;
3536
3537         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3538         spin_lock(&phba->scsi_buf_list_put_lock);
3539         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3540         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3541         spin_unlock(&phba->scsi_buf_list_put_lock);
3542         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3543
3544         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3545                         "6060 Current allocated SCSI xri-sgl count:%d, "
3546                         "maximum  SCSI xri count:%d (split:%d)\n",
3547                         phba->sli4_hba.scsi_xri_cnt,
3548                         phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split);
3549
3550         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3551                 /* max scsi xri shrinked below the allocated scsi buffers */
3552                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3553                                         phba->sli4_hba.scsi_xri_max;
3554                 /* release the extra allocated scsi buffers */
3555                 for (i = 0; i < scsi_xri_cnt; i++) {
3556                         list_remove_head(&scsi_sgl_list, psb,
3557                                          struct lpfc_scsi_buf, list);
3558                         if (psb) {
3559                                 pci_pool_free(phba->lpfc_sg_dma_buf_pool,
3560                                               psb->data, psb->dma_handle);
3561                                 kfree(psb);
3562                         }
3563                 }
3564                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3565                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3566                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3567         }
3568
3569         /* update xris associated to remaining allocated scsi buffers */
3570         psb = NULL;
3571         psb_next = NULL;
3572         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3573                 lxri = lpfc_sli4_next_xritag(phba);
3574                 if (lxri == NO_XRI) {
3575                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3576                                         "2560 Failed to allocate xri for "
3577                                         "scsi buffer\n");
3578                         rc = -ENOMEM;
3579                         goto out_free_mem;
3580                 }
3581                 psb->cur_iocbq.sli4_lxritag = lxri;
3582                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3583         }
3584         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3585         spin_lock(&phba->scsi_buf_list_put_lock);
3586         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3587         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3588         spin_unlock(&phba->scsi_buf_list_put_lock);
3589         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3590         return 0;
3591
3592 out_free_mem:
3593         lpfc_scsi_free(phba);
3594         return rc;
3595 }
3596
3597 static uint64_t
3598 lpfc_get_wwpn(struct lpfc_hba *phba)
3599 {
3600         uint64_t wwn;
3601         int rc;
3602         LPFC_MBOXQ_t *mboxq;
3603         MAILBOX_t *mb;
3604
3605
3606         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3607                                                 GFP_KERNEL);
3608         if (!mboxq)
3609                 return (uint64_t)-1;
3610
3611         /* First get WWN of HBA instance */
3612         lpfc_read_nv(phba, mboxq);
3613         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3614         if (rc != MBX_SUCCESS) {
3615                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3616                                 "6019 Mailbox failed , mbxCmd x%x "
3617                                 "READ_NV, mbxStatus x%x\n",
3618                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
3619                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
3620                 mempool_free(mboxq, phba->mbox_mem_pool);
3621                 return (uint64_t) -1;
3622         }
3623         mb = &mboxq->u.mb;
3624         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
3625         /* wwn is WWPN of HBA instance */
3626         mempool_free(mboxq, phba->mbox_mem_pool);
3627         if (phba->sli_rev == LPFC_SLI_REV4)
3628                 return be64_to_cpu(wwn);
3629         else
3630                 return (((wwn & 0xffffffff00000000) >> 32) |
3631                         ((wwn & 0x00000000ffffffff) << 32));
3632
3633 }
3634
3635 /**
3636  * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping
3637  * @phba: pointer to lpfc hba data structure.
3638  *
3639  * This routine first calculates the sizes of the current els and allocated
3640  * scsi sgl lists, and then goes through all sgls to updates the physical
3641  * XRIs assigned due to port function reset. During port initialization, the
3642  * current els and allocated scsi sgl lists are 0s.
3643  *
3644  * Return codes
3645  *   0 - successful (for now, it always returns 0)
3646  **/
3647 int
3648 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
3649 {
3650         struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3651         uint16_t i, lxri, els_xri_cnt;
3652         uint16_t nvme_xri_cnt, nvme_xri_max;
3653         LIST_HEAD(nvme_sgl_list);
3654         int rc;
3655
3656         phba->total_nvme_bufs = 0;
3657
3658         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3659                 return 0;
3660         /*
3661          * update on pci function's allocated nvme xri-sgl list
3662          */
3663
3664         /* maximum number of xris available for nvme buffers */
3665         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3666         nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3667         phba->sli4_hba.nvme_xri_max = nvme_xri_max;
3668         phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max;
3669
3670         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3671                         "6074 Current allocated NVME xri-sgl count:%d, "
3672                         "maximum  NVME xri count:%d\n",
3673                         phba->sli4_hba.nvme_xri_cnt,
3674                         phba->sli4_hba.nvme_xri_max);
3675
3676         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3677         spin_lock(&phba->nvme_buf_list_put_lock);
3678         list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
3679         list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
3680         spin_unlock(&phba->nvme_buf_list_put_lock);
3681         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3682
3683         if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) {
3684                 /* max nvme xri shrunk below the allocated nvme buffers */
3685                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3686                 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt -
3687                                         phba->sli4_hba.nvme_xri_max;
3688                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3689                 /* release the extra allocated nvme buffers */
3690                 for (i = 0; i < nvme_xri_cnt; i++) {
3691                         list_remove_head(&nvme_sgl_list, lpfc_ncmd,
3692                                          struct lpfc_nvme_buf, list);
3693                         if (lpfc_ncmd) {
3694                                 pci_pool_free(phba->lpfc_sg_dma_buf_pool,
3695                                               lpfc_ncmd->data,
3696                                               lpfc_ncmd->dma_handle);
3697                                 kfree(lpfc_ncmd);
3698                         }
3699                 }
3700                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3701                 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt;
3702                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3703         }
3704
3705         /* update xris associated to remaining allocated nvme buffers */
3706         lpfc_ncmd = NULL;
3707         lpfc_ncmd_next = NULL;
3708         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3709                                  &nvme_sgl_list, list) {
3710                 lxri = lpfc_sli4_next_xritag(phba);
3711                 if (lxri == NO_XRI) {
3712                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3713                                         "6075 Failed to allocate xri for "
3714                                         "nvme buffer\n");
3715                         rc = -ENOMEM;
3716                         goto out_free_mem;
3717                 }
3718                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
3719                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3720         }
3721         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3722         spin_lock(&phba->nvme_buf_list_put_lock);
3723         list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
3724         INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
3725         spin_unlock(&phba->nvme_buf_list_put_lock);
3726         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3727         return 0;
3728
3729 out_free_mem:
3730         lpfc_nvme_free(phba);
3731         return rc;
3732 }
3733
3734 /**
3735  * lpfc_create_port - Create an FC port
3736  * @phba: pointer to lpfc hba data structure.
3737  * @instance: a unique integer ID to this FC port.
3738  * @dev: pointer to the device data structure.
3739  *
3740  * This routine creates a FC port for the upper layer protocol. The FC port
3741  * can be created on top of either a physical port or a virtual port provided
3742  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3743  * and associates the FC port created before adding the shost into the SCSI
3744  * layer.
3745  *
3746  * Return codes
3747  *   @vport - pointer to the virtual N_Port data structure.
3748  *   NULL - port create failed.
3749  **/
3750 struct lpfc_vport *
3751 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3752 {
3753         struct lpfc_vport *vport;
3754         struct Scsi_Host  *shost = NULL;
3755         int error = 0;
3756         int i;
3757         uint64_t wwn;
3758         bool use_no_reset_hba = false;
3759
3760         wwn = lpfc_get_wwpn(phba);
3761
3762         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
3763                 if (wwn == lpfc_no_hba_reset[i]) {
3764                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3765                                         "6020 Setting use_no_reset port=%llx\n",
3766                                         wwn);
3767                         use_no_reset_hba = true;
3768                         break;
3769                 }
3770         }
3771
3772         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
3773                 if (dev != &phba->pcidev->dev) {
3774                         shost = scsi_host_alloc(&lpfc_vport_template,
3775                                                 sizeof(struct lpfc_vport));
3776                 } else {
3777                         if (!use_no_reset_hba)
3778                                 shost = scsi_host_alloc(&lpfc_template,
3779                                                 sizeof(struct lpfc_vport));
3780                         else
3781                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
3782                                                 sizeof(struct lpfc_vport));
3783                 }
3784         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3785                 shost = scsi_host_alloc(&lpfc_template_nvme,
3786                                         sizeof(struct lpfc_vport));
3787         }
3788         if (!shost)
3789                 goto out;
3790
3791         vport = (struct lpfc_vport *) shost->hostdata;
3792         vport->phba = phba;
3793         vport->load_flag |= FC_LOADING;
3794         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3795         vport->fc_rscn_flush = 0;
3796         lpfc_get_vport_cfgparam(vport);
3797
3798         shost->unique_id = instance;
3799         shost->max_id = LPFC_MAX_TARGET;
3800         shost->max_lun = vport->cfg_max_luns;
3801         shost->this_id = -1;
3802         shost->max_cmd_len = 16;
3803         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3804         if (phba->sli_rev == LPFC_SLI_REV4) {
3805                 shost->dma_boundary =
3806                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3807                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3808         }
3809
3810         /*
3811          * Set initial can_queue value since 0 is no longer supported and
3812          * scsi_add_host will fail. This will be adjusted later based on the
3813          * max xri value determined in hba setup.
3814          */
3815         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3816         if (dev != &phba->pcidev->dev) {
3817                 shost->transportt = lpfc_vport_transport_template;
3818                 vport->port_type = LPFC_NPIV_PORT;
3819         } else {
3820                 shost->transportt = lpfc_transport_template;
3821                 vport->port_type = LPFC_PHYSICAL_PORT;
3822         }
3823
3824         /* Initialize all internally managed lists. */
3825         INIT_LIST_HEAD(&vport->fc_nodes);
3826         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3827         spin_lock_init(&vport->work_port_lock);
3828
3829         setup_timer(&vport->fc_disctmo, lpfc_disc_timeout,
3830                         (unsigned long)vport);
3831
3832         setup_timer(&vport->els_tmofunc, lpfc_els_timeout,
3833                         (unsigned long)vport);
3834
3835         setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo,
3836                         (unsigned long)vport);
3837
3838         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3839         if (error)
3840                 goto out_put_shost;
3841
3842         spin_lock_irq(&phba->hbalock);
3843         list_add_tail(&vport->listentry, &phba->port_list);
3844         spin_unlock_irq(&phba->hbalock);
3845         return vport;
3846
3847 out_put_shost:
3848         scsi_host_put(shost);
3849 out:
3850         return NULL;
3851 }
3852
3853 /**
3854  * destroy_port -  destroy an FC port
3855  * @vport: pointer to an lpfc virtual N_Port data structure.
3856  *
3857  * This routine destroys a FC port from the upper layer protocol. All the
3858  * resources associated with the port are released.
3859  **/
3860 void
3861 destroy_port(struct lpfc_vport *vport)
3862 {
3863         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3864         struct lpfc_hba  *phba = vport->phba;
3865
3866         lpfc_debugfs_terminate(vport);
3867         fc_remove_host(shost);
3868         scsi_remove_host(shost);
3869
3870         spin_lock_irq(&phba->hbalock);
3871         list_del_init(&vport->listentry);
3872         spin_unlock_irq(&phba->hbalock);
3873
3874         lpfc_cleanup(vport);
3875         return;
3876 }
3877
3878 /**
3879  * lpfc_get_instance - Get a unique integer ID
3880  *
3881  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3882  * uses the kernel idr facility to perform the task.
3883  *
3884  * Return codes:
3885  *   instance - a unique integer ID allocated as the new instance.
3886  *   -1 - lpfc get instance failed.
3887  **/
3888 int
3889 lpfc_get_instance(void)
3890 {
3891         int ret;
3892
3893         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3894         return ret < 0 ? -1 : ret;
3895 }
3896
3897 /**
3898  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3899  * @shost: pointer to SCSI host data structure.
3900  * @time: elapsed time of the scan in jiffies.
3901  *
3902  * This routine is called by the SCSI layer with a SCSI host to determine
3903  * whether the scan host is finished.
3904  *
3905  * Note: there is no scan_start function as adapter initialization will have
3906  * asynchronously kicked off the link initialization.
3907  *
3908  * Return codes
3909  *   0 - SCSI host scan is not over yet.
3910  *   1 - SCSI host scan is over.
3911  **/
3912 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3913 {
3914         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3915         struct lpfc_hba   *phba = vport->phba;
3916         int stat = 0;
3917
3918         spin_lock_irq(shost->host_lock);
3919
3920         if (vport->load_flag & FC_UNLOADING) {
3921                 stat = 1;
3922                 goto finished;
3923         }
3924         if (time >= msecs_to_jiffies(30 * 1000)) {
3925                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3926                                 "0461 Scanning longer than 30 "
3927                                 "seconds.  Continuing initialization\n");
3928                 stat = 1;
3929                 goto finished;
3930         }
3931         if (time >= msecs_to_jiffies(15 * 1000) &&
3932             phba->link_state <= LPFC_LINK_DOWN) {
3933                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3934                                 "0465 Link down longer than 15 "
3935                                 "seconds.  Continuing initialization\n");
3936                 stat = 1;
3937                 goto finished;
3938         }
3939
3940         if (vport->port_state != LPFC_VPORT_READY)
3941                 goto finished;
3942         if (vport->num_disc_nodes || vport->fc_prli_sent)
3943                 goto finished;
3944         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3945                 goto finished;
3946         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3947                 goto finished;
3948
3949         stat = 1;
3950
3951 finished:
3952         spin_unlock_irq(shost->host_lock);
3953         return stat;
3954 }
3955
3956 /**
3957  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3958  * @shost: pointer to SCSI host data structure.
3959  *
3960  * This routine initializes a given SCSI host attributes on a FC port. The
3961  * SCSI host can be either on top of a physical port or a virtual port.
3962  **/
3963 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3964 {
3965         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3966         struct lpfc_hba   *phba = vport->phba;
3967         /*
3968          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3969          */
3970
3971         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3972         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3973         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3974
3975         memset(fc_host_supported_fc4s(shost), 0,
3976                sizeof(fc_host_supported_fc4s(shost)));
3977         fc_host_supported_fc4s(shost)[2] = 1;
3978         fc_host_supported_fc4s(shost)[7] = 1;
3979
3980         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3981                                  sizeof fc_host_symbolic_name(shost));
3982
3983         fc_host_supported_speeds(shost) = 0;
3984         if (phba->lmt & LMT_32Gb)
3985                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3986         if (phba->lmt & LMT_16Gb)
3987                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3988         if (phba->lmt & LMT_10Gb)
3989                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3990         if (phba->lmt & LMT_8Gb)
3991                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3992         if (phba->lmt & LMT_4Gb)
3993                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3994         if (phba->lmt & LMT_2Gb)
3995                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3996         if (phba->lmt & LMT_1Gb)
3997                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3998
3999         fc_host_maxframe_size(shost) =
4000                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4001                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4002
4003         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4004
4005         /* This value is also unchanging */
4006         memset(fc_host_active_fc4s(shost), 0,
4007                sizeof(fc_host_active_fc4s(shost)));
4008         fc_host_active_fc4s(shost)[2] = 1;
4009         fc_host_active_fc4s(shost)[7] = 1;
4010
4011         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4012         spin_lock_irq(shost->host_lock);
4013         vport->load_flag &= ~FC_LOADING;
4014         spin_unlock_irq(shost->host_lock);
4015 }
4016
4017 /**
4018  * lpfc_stop_port_s3 - Stop SLI3 device port
4019  * @phba: pointer to lpfc hba data structure.
4020  *
4021  * This routine is invoked to stop an SLI3 device port, it stops the device
4022  * from generating interrupts and stops the device driver's timers for the
4023  * device.
4024  **/
4025 static void
4026 lpfc_stop_port_s3(struct lpfc_hba *phba)
4027 {
4028         /* Clear all interrupt enable conditions */
4029         writel(0, phba->HCregaddr);
4030         readl(phba->HCregaddr); /* flush */
4031         /* Clear all pending interrupts */
4032         writel(0xffffffff, phba->HAregaddr);
4033         readl(phba->HAregaddr); /* flush */
4034
4035         /* Reset some HBA SLI setup states */
4036         lpfc_stop_hba_timers(phba);
4037         phba->pport->work_port_events = 0;
4038 }
4039
4040 /**
4041  * lpfc_stop_port_s4 - Stop SLI4 device port
4042  * @phba: pointer to lpfc hba data structure.
4043  *
4044  * This routine is invoked to stop an SLI4 device port, it stops the device
4045  * from generating interrupts and stops the device driver's timers for the
4046  * device.
4047  **/
4048 static void
4049 lpfc_stop_port_s4(struct lpfc_hba *phba)
4050 {
4051         /* Reset some HBA SLI4 setup states */
4052         lpfc_stop_hba_timers(phba);
4053         phba->pport->work_port_events = 0;
4054         phba->sli4_hba.intr_enable = 0;
4055 }
4056
4057 /**
4058  * lpfc_stop_port - Wrapper function for stopping hba port
4059  * @phba: Pointer to HBA context object.
4060  *
4061  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4062  * the API jump table function pointer from the lpfc_hba struct.
4063  **/
4064 void
4065 lpfc_stop_port(struct lpfc_hba *phba)
4066 {
4067         phba->lpfc_stop_port(phba);
4068 }
4069
4070 /**
4071  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4072  * @phba: Pointer to hba for which this call is being executed.
4073  *
4074  * This routine starts the timer waiting for the FCF rediscovery to complete.
4075  **/
4076 void
4077 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4078 {
4079         unsigned long fcf_redisc_wait_tmo =
4080                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4081         /* Start fcf rediscovery wait period timer */
4082         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4083         spin_lock_irq(&phba->hbalock);
4084         /* Allow action to new fcf asynchronous event */
4085         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4086         /* Mark the FCF rediscovery pending state */
4087         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4088         spin_unlock_irq(&phba->hbalock);
4089 }
4090
4091 /**
4092  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4093  * @ptr: Map to lpfc_hba data structure pointer.
4094  *
4095  * This routine is invoked when waiting for FCF table rediscover has been
4096  * timed out. If new FCF record(s) has (have) been discovered during the
4097  * wait period, a new FCF event shall be added to the FCOE async event
4098  * list, and then worker thread shall be waked up for processing from the
4099  * worker thread context.
4100  **/
4101 static void
4102 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
4103 {
4104         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
4105
4106         /* Don't send FCF rediscovery event if timer cancelled */
4107         spin_lock_irq(&phba->hbalock);
4108         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4109                 spin_unlock_irq(&phba->hbalock);
4110                 return;
4111         }
4112         /* Clear FCF rediscovery timer pending flag */
4113         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4114         /* FCF rediscovery event to worker thread */
4115         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4116         spin_unlock_irq(&phba->hbalock);
4117         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4118                         "2776 FCF rediscover quiescent timer expired\n");
4119         /* wake up worker thread */
4120         lpfc_worker_wake_up(phba);
4121 }
4122
4123 /**
4124  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4125  * @phba: pointer to lpfc hba data structure.
4126  * @acqe_link: pointer to the async link completion queue entry.
4127  *
4128  * This routine is to parse the SLI4 link-attention link fault code and
4129  * translate it into the base driver's read link attention mailbox command
4130  * status.
4131  *
4132  * Return: Link-attention status in terms of base driver's coding.
4133  **/
4134 static uint16_t
4135 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4136                            struct lpfc_acqe_link *acqe_link)
4137 {
4138         uint16_t latt_fault;
4139
4140         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4141         case LPFC_ASYNC_LINK_FAULT_NONE:
4142         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4143         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4144                 latt_fault = 0;
4145                 break;
4146         default:
4147                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4148                                 "0398 Invalid link fault code: x%x\n",
4149                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4150                 latt_fault = MBXERR_ERROR;
4151                 break;
4152         }
4153         return latt_fault;
4154 }
4155
4156 /**
4157  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4158  * @phba: pointer to lpfc hba data structure.
4159  * @acqe_link: pointer to the async link completion queue entry.
4160  *
4161  * This routine is to parse the SLI4 link attention type and translate it
4162  * into the base driver's link attention type coding.
4163  *
4164  * Return: Link attention type in terms of base driver's coding.
4165  **/
4166 static uint8_t
4167 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4168                           struct lpfc_acqe_link *acqe_link)
4169 {
4170         uint8_t att_type;
4171
4172         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4173         case LPFC_ASYNC_LINK_STATUS_DOWN:
4174         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4175                 att_type = LPFC_ATT_LINK_DOWN;
4176                 break;
4177         case LPFC_ASYNC_LINK_STATUS_UP:
4178                 /* Ignore physical link up events - wait for logical link up */
4179                 att_type = LPFC_ATT_RESERVED;
4180                 break;
4181         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4182                 att_type = LPFC_ATT_LINK_UP;
4183                 break;
4184         default:
4185                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4186                                 "0399 Invalid link attention type: x%x\n",
4187                                 bf_get(lpfc_acqe_link_status, acqe_link));
4188                 att_type = LPFC_ATT_RESERVED;
4189                 break;
4190         }
4191         return att_type;
4192 }
4193
4194 /**
4195  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4196  * @phba: pointer to lpfc hba data structure.
4197  *
4198  * This routine is to get an SLI3 FC port's link speed in Mbps.
4199  *
4200  * Return: link speed in terms of Mbps.
4201  **/
4202 uint32_t
4203 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4204 {
4205         uint32_t link_speed;
4206
4207         if (!lpfc_is_link_up(phba))
4208                 return 0;
4209
4210         if (phba->sli_rev <= LPFC_SLI_REV3) {
4211                 switch (phba->fc_linkspeed) {
4212                 case LPFC_LINK_SPEED_1GHZ:
4213                         link_speed = 1000;
4214                         break;
4215                 case LPFC_LINK_SPEED_2GHZ:
4216                         link_speed = 2000;
4217                         break;
4218                 case LPFC_LINK_SPEED_4GHZ:
4219                         link_speed = 4000;
4220                         break;
4221                 case LPFC_LINK_SPEED_8GHZ:
4222                         link_speed = 8000;
4223                         break;
4224                 case LPFC_LINK_SPEED_10GHZ:
4225                         link_speed = 10000;
4226                         break;
4227                 case LPFC_LINK_SPEED_16GHZ:
4228                         link_speed = 16000;
4229                         break;
4230                 default:
4231                         link_speed = 0;
4232                 }
4233         } else {
4234                 if (phba->sli4_hba.link_state.logical_speed)
4235                         link_speed =
4236                               phba->sli4_hba.link_state.logical_speed;
4237                 else
4238                         link_speed = phba->sli4_hba.link_state.speed;
4239         }
4240         return link_speed;
4241 }
4242
4243 /**
4244  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4245  * @phba: pointer to lpfc hba data structure.
4246  * @evt_code: asynchronous event code.
4247  * @speed_code: asynchronous event link speed code.
4248  *
4249  * This routine is to parse the giving SLI4 async event link speed code into
4250  * value of Mbps for the link speed.
4251  *
4252  * Return: link speed in terms of Mbps.
4253  **/
4254 static uint32_t
4255 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4256                            uint8_t speed_code)
4257 {
4258         uint32_t port_speed;
4259
4260         switch (evt_code) {
4261         case LPFC_TRAILER_CODE_LINK:
4262                 switch (speed_code) {
4263                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4264                         port_speed = 0;
4265                         break;
4266                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4267                         port_speed = 10;
4268                         break;
4269                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4270                         port_speed = 100;
4271                         break;
4272                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4273                         port_speed = 1000;
4274                         break;
4275                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4276                         port_speed = 10000;
4277                         break;
4278                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4279                         port_speed = 20000;
4280                         break;
4281                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4282                         port_speed = 25000;
4283                         break;
4284                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4285                         port_speed = 40000;
4286                         break;
4287                 default:
4288                         port_speed = 0;
4289                 }
4290                 break;
4291         case LPFC_TRAILER_CODE_FC:
4292                 switch (speed_code) {
4293                 case LPFC_FC_LA_SPEED_UNKNOWN:
4294                         port_speed = 0;
4295                         break;
4296                 case LPFC_FC_LA_SPEED_1G:
4297                         port_speed = 1000;
4298                         break;
4299                 case LPFC_FC_LA_SPEED_2G:
4300                         port_speed = 2000;
4301                         break;
4302                 case LPFC_FC_LA_SPEED_4G:
4303                         port_speed = 4000;
4304                         break;
4305                 case LPFC_FC_LA_SPEED_8G:
4306                         port_speed = 8000;
4307                         break;
4308                 case LPFC_FC_LA_SPEED_10G:
4309                         port_speed = 10000;
4310                         break;
4311                 case LPFC_FC_LA_SPEED_16G:
4312                         port_speed = 16000;
4313                         break;
4314                 case LPFC_FC_LA_SPEED_32G:
4315                         port_speed = 32000;
4316                         break;
4317                 default:
4318                         port_speed = 0;
4319                 }
4320                 break;
4321         default:
4322                 port_speed = 0;
4323         }
4324         return port_speed;
4325 }
4326
4327 /**
4328  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4329  * @phba: pointer to lpfc hba data structure.
4330  * @acqe_link: pointer to the async link completion queue entry.
4331  *
4332  * This routine is to handle the SLI4 asynchronous FCoE link event.
4333  **/
4334 static void
4335 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4336                          struct lpfc_acqe_link *acqe_link)
4337 {
4338         struct lpfc_dmabuf *mp;
4339         LPFC_MBOXQ_t *pmb;
4340         MAILBOX_t *mb;
4341         struct lpfc_mbx_read_top *la;
4342         uint8_t att_type;
4343         int rc;
4344
4345         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4346         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4347                 return;
4348         phba->fcoe_eventtag = acqe_link->event_tag;
4349         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4350         if (!pmb) {
4351                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4352                                 "0395 The mboxq allocation failed\n");
4353                 return;
4354         }
4355         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4356         if (!mp) {
4357                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4358                                 "0396 The lpfc_dmabuf allocation failed\n");
4359                 goto out_free_pmb;
4360         }
4361         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4362         if (!mp->virt) {
4363                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4364                                 "0397 The mbuf allocation failed\n");
4365                 goto out_free_dmabuf;
4366         }
4367
4368         /* Cleanup any outstanding ELS commands */
4369         lpfc_els_flush_all_cmd(phba);
4370
4371         /* Block ELS IOCBs until we have done process link event */
4372         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4373
4374         /* Update link event statistics */
4375         phba->sli.slistat.link_event++;
4376
4377         /* Create lpfc_handle_latt mailbox command from link ACQE */
4378         lpfc_read_topology(phba, pmb, mp);
4379         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4380         pmb->vport = phba->pport;
4381
4382         /* Keep the link status for extra SLI4 state machine reference */
4383         phba->sli4_hba.link_state.speed =
4384                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4385                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4386         phba->sli4_hba.link_state.duplex =
4387                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4388         phba->sli4_hba.link_state.status =
4389                                 bf_get(lpfc_acqe_link_status, acqe_link);
4390         phba->sli4_hba.link_state.type =
4391                                 bf_get(lpfc_acqe_link_type, acqe_link);
4392         phba->sli4_hba.link_state.number =
4393                                 bf_get(lpfc_acqe_link_number, acqe_link);
4394         phba->sli4_hba.link_state.fault =
4395                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4396         phba->sli4_hba.link_state.logical_speed =
4397                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4398
4399         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4400                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4401                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4402                         "Logical speed:%dMbps Fault:%d\n",
4403                         phba->sli4_hba.link_state.speed,
4404                         phba->sli4_hba.link_state.topology,
4405                         phba->sli4_hba.link_state.status,
4406                         phba->sli4_hba.link_state.type,
4407                         phba->sli4_hba.link_state.number,
4408                         phba->sli4_hba.link_state.logical_speed,
4409                         phba->sli4_hba.link_state.fault);
4410         /*
4411          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4412          * topology info. Note: Optional for non FC-AL ports.
4413          */
4414         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4415                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4416                 if (rc == MBX_NOT_FINISHED)
4417                         goto out_free_dmabuf;
4418                 return;
4419         }
4420         /*
4421          * For FCoE Mode: fill in all the topology information we need and call
4422          * the READ_TOPOLOGY completion routine to continue without actually
4423          * sending the READ_TOPOLOGY mailbox command to the port.
4424          */
4425         /* Parse and translate status field */
4426         mb = &pmb->u.mb;
4427         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
4428
4429         /* Parse and translate link attention fields */
4430         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4431         la->eventTag = acqe_link->event_tag;
4432         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4433         bf_set(lpfc_mbx_read_top_link_spd, la,
4434                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4435
4436         /* Fake the the following irrelvant fields */
4437         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4438         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4439         bf_set(lpfc_mbx_read_top_il, la, 0);
4440         bf_set(lpfc_mbx_read_top_pb, la, 0);
4441         bf_set(lpfc_mbx_read_top_fa, la, 0);
4442         bf_set(lpfc_mbx_read_top_mm, la, 0);
4443
4444         /* Invoke the lpfc_handle_latt mailbox command callback function */
4445         lpfc_mbx_cmpl_read_topology(phba, pmb);
4446
4447         return;
4448
4449 out_free_dmabuf:
4450         kfree(mp);
4451 out_free_pmb:
4452         mempool_free(pmb, phba->mbox_mem_pool);
4453 }
4454
4455 /**
4456  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4457  * @phba: pointer to lpfc hba data structure.
4458  * @acqe_fc: pointer to the async fc completion queue entry.
4459  *
4460  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4461  * that the event was received and then issue a read_topology mailbox command so
4462  * that the rest of the driver will treat it the same as SLI3.
4463  **/
4464 static void
4465 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4466 {
4467         struct lpfc_dmabuf *mp;
4468         LPFC_MBOXQ_t *pmb;
4469         MAILBOX_t *mb;
4470         struct lpfc_mbx_read_top *la;
4471         int rc;
4472
4473         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4474             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4475                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4476                                 "2895 Non FC link Event detected.(%d)\n",
4477                                 bf_get(lpfc_trailer_type, acqe_fc));
4478                 return;
4479         }
4480         /* Keep the link status for extra SLI4 state machine reference */
4481         phba->sli4_hba.link_state.speed =
4482                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4483                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4484         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4485         phba->sli4_hba.link_state.topology =
4486                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4487         phba->sli4_hba.link_state.status =
4488                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4489         phba->sli4_hba.link_state.type =
4490                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4491         phba->sli4_hba.link_state.number =
4492                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4493         phba->sli4_hba.link_state.fault =
4494                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4495         phba->sli4_hba.link_state.logical_speed =
4496                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4497         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4498                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4499                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4500                         "%dMbps Fault:%d\n",
4501                         phba->sli4_hba.link_state.speed,
4502                         phba->sli4_hba.link_state.topology,
4503                         phba->sli4_hba.link_state.status,
4504                         phba->sli4_hba.link_state.type,
4505                         phba->sli4_hba.link_state.number,
4506                         phba->sli4_hba.link_state.logical_speed,
4507                         phba->sli4_hba.link_state.fault);
4508         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4509         if (!pmb) {
4510                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4511                                 "2897 The mboxq allocation failed\n");
4512                 return;
4513         }
4514         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4515         if (!mp) {
4516                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4517                                 "2898 The lpfc_dmabuf allocation failed\n");
4518                 goto out_free_pmb;
4519         }
4520         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4521         if (!mp->virt) {
4522                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4523                                 "2899 The mbuf allocation failed\n");
4524                 goto out_free_dmabuf;
4525         }
4526
4527         /* Cleanup any outstanding ELS commands */
4528         lpfc_els_flush_all_cmd(phba);
4529
4530         /* Block ELS IOCBs until we have done process link event */
4531         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4532
4533         /* Update link event statistics */
4534         phba->sli.slistat.link_event++;
4535
4536         /* Create lpfc_handle_latt mailbox command from link ACQE */
4537         lpfc_read_topology(phba, pmb, mp);
4538         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4539         pmb->vport = phba->pport;
4540
4541         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4542                 /* Parse and translate status field */
4543                 mb = &pmb->u.mb;
4544                 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,
4545                                                            (void *)acqe_fc);
4546
4547                 /* Parse and translate link attention fields */
4548                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4549                 la->eventTag = acqe_fc->event_tag;
4550
4551                 if (phba->sli4_hba.link_state.status ==
4552                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
4553                         bf_set(lpfc_mbx_read_top_att_type, la,
4554                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
4555                 } else {
4556                         bf_set(lpfc_mbx_read_top_att_type, la,
4557                                LPFC_FC_LA_TYPE_LINK_DOWN);
4558                 }
4559                 /* Invoke the mailbox command callback function */
4560                 lpfc_mbx_cmpl_read_topology(phba, pmb);
4561
4562                 return;
4563         }
4564
4565         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4566         if (rc == MBX_NOT_FINISHED)
4567                 goto out_free_dmabuf;
4568         return;
4569
4570 out_free_dmabuf:
4571         kfree(mp);
4572 out_free_pmb:
4573         mempool_free(pmb, phba->mbox_mem_pool);
4574 }
4575
4576 /**
4577  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4578  * @phba: pointer to lpfc hba data structure.
4579  * @acqe_fc: pointer to the async SLI completion queue entry.
4580  *
4581  * This routine is to handle the SLI4 asynchronous SLI events.
4582  **/
4583 static void
4584 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4585 {
4586         char port_name;
4587         char message[128];
4588         uint8_t status;
4589         uint8_t evt_type;
4590         uint8_t operational = 0;
4591         struct temp_event temp_event_data;
4592         struct lpfc_acqe_misconfigured_event *misconfigured;
4593         struct Scsi_Host  *shost;
4594
4595         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4596
4597         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4598                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4599                         "x%08x SLI Event Type:%d\n",
4600                         acqe_sli->event_data1, acqe_sli->event_data2,
4601                         evt_type);
4602
4603         port_name = phba->Port[0];
4604         if (port_name == 0x00)
4605                 port_name = '?'; /* get port name is empty */
4606
4607         switch (evt_type) {
4608         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4609                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4610                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4611                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4612
4613                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4614                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4615                                 acqe_sli->event_data1, port_name);
4616
4617                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4618                 shost = lpfc_shost_from_vport(phba->pport);
4619                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4620                                           sizeof(temp_event_data),
4621                                           (char *)&temp_event_data,
4622                                           SCSI_NL_VID_TYPE_PCI
4623                                           | PCI_VENDOR_ID_EMULEX);
4624                 break;
4625         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4626                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4627                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4628                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4629
4630                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4631                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4632                                 acqe_sli->event_data1, port_name);
4633
4634                 shost = lpfc_shost_from_vport(phba->pport);
4635                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4636                                           sizeof(temp_event_data),
4637                                           (char *)&temp_event_data,
4638                                           SCSI_NL_VID_TYPE_PCI
4639                                           | PCI_VENDOR_ID_EMULEX);
4640                 break;
4641         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4642                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4643                                         &acqe_sli->event_data1;
4644
4645                 /* fetch the status for this port */
4646                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4647                 case LPFC_LINK_NUMBER_0:
4648                         status = bf_get(lpfc_sli_misconfigured_port0_state,
4649                                         &misconfigured->theEvent);
4650                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
4651                                         &misconfigured->theEvent);
4652                         break;
4653                 case LPFC_LINK_NUMBER_1:
4654                         status = bf_get(lpfc_sli_misconfigured_port1_state,
4655                                         &misconfigured->theEvent);
4656                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
4657                                         &misconfigured->theEvent);
4658                         break;
4659                 case LPFC_LINK_NUMBER_2:
4660                         status = bf_get(lpfc_sli_misconfigured_port2_state,
4661                                         &misconfigured->theEvent);
4662                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
4663                                         &misconfigured->theEvent);
4664                         break;
4665                 case LPFC_LINK_NUMBER_3:
4666                         status = bf_get(lpfc_sli_misconfigured_port3_state,
4667                                         &misconfigured->theEvent);
4668                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
4669                                         &misconfigured->theEvent);
4670                         break;
4671                 default:
4672                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4673                                         "3296 "
4674                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4675                                         "event: Invalid link %d",
4676                                         phba->sli4_hba.lnk_info.lnk_no);
4677                         return;
4678                 }
4679
4680                 /* Skip if optic state unchanged */
4681                 if (phba->sli4_hba.lnk_info.optic_state == status)
4682                         return;
4683
4684                 switch (status) {
4685                 case LPFC_SLI_EVENT_STATUS_VALID:
4686                         sprintf(message, "Physical Link is functional");
4687                         break;
4688                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4689                         sprintf(message, "Optics faulted/incorrectly "
4690                                 "installed/not installed - Reseat optics, "
4691                                 "if issue not resolved, replace.");
4692                         break;
4693                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4694                         sprintf(message,
4695                                 "Optics of two types installed - Remove one "
4696                                 "optic or install matching pair of optics.");
4697                         break;
4698                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4699                         sprintf(message, "Incompatible optics - Replace with "
4700                                 "compatible optics for card to function.");
4701                         break;
4702                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4703                         sprintf(message, "Unqualified optics - Replace with "
4704                                 "Avago optics for Warranty and Technical "
4705                                 "Support - Link is%s operational",
4706                                 (operational) ? " not" : "");
4707                         break;
4708                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4709                         sprintf(message, "Uncertified optics - Replace with "
4710                                 "Avago-certified optics to enable link "
4711                                 "operation - Link is%s operational",
4712                                 (operational) ? " not" : "");
4713                         break;
4714                 default:
4715                         /* firmware is reporting a status we don't know about */
4716                         sprintf(message, "Unknown event status x%02x", status);
4717                         break;
4718                 }
4719                 phba->sli4_hba.lnk_info.optic_state = status;
4720                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4721                                 "3176 Port Name %c %s\n", port_name, message);
4722                 break;
4723         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4724                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4725                                 "3192 Remote DPort Test Initiated - "
4726                                 "Event Data1:x%08x Event Data2: x%08x\n",
4727                                 acqe_sli->event_data1, acqe_sli->event_data2);
4728                 break;
4729         default:
4730                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4731                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4732                                 "x%08x SLI Event Type:%d\n",
4733                                 acqe_sli->event_data1, acqe_sli->event_data2,
4734                                 evt_type);
4735                 break;
4736         }
4737 }
4738
4739 /**
4740  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4741  * @vport: pointer to vport data structure.
4742  *
4743  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4744  * response to a CVL event.
4745  *
4746  * Return the pointer to the ndlp with the vport if successful, otherwise
4747  * return NULL.
4748  **/
4749 static struct lpfc_nodelist *
4750 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4751 {
4752         struct lpfc_nodelist *ndlp;
4753         struct Scsi_Host *shost;
4754         struct lpfc_hba *phba;
4755
4756         if (!vport)
4757                 return NULL;
4758         phba = vport->phba;
4759         if (!phba)
4760                 return NULL;
4761         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4762         if (!ndlp) {
4763                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4764                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
4765                 if (!ndlp)
4766                         return 0;
4767                 /* Set the node type */
4768                 ndlp->nlp_type |= NLP_FABRIC;
4769                 /* Put ndlp onto node list */
4770                 lpfc_enqueue_node(vport, ndlp);
4771         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4772                 /* re-setup ndlp without removing from node list */
4773                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4774                 if (!ndlp)
4775                         return 0;
4776         }
4777         if ((phba->pport->port_state < LPFC_FLOGI) &&
4778                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4779                 return NULL;
4780         /* If virtual link is not yet instantiated ignore CVL */
4781         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4782                 && (vport->port_state != LPFC_VPORT_FAILED))
4783                 return NULL;
4784         shost = lpfc_shost_from_vport(vport);
4785         if (!shost)
4786                 return NULL;
4787         lpfc_linkdown_port(vport);
4788         lpfc_cleanup_pending_mbox(vport);
4789         spin_lock_irq(shost->host_lock);
4790         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4791         spin_unlock_irq(shost->host_lock);
4792
4793         return ndlp;
4794 }
4795
4796 /**
4797  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4798  * @vport: pointer to lpfc hba data structure.
4799  *
4800  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4801  * response to a FCF dead event.
4802  **/
4803 static void
4804 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4805 {
4806         struct lpfc_vport **vports;
4807         int i;
4808
4809         vports = lpfc_create_vport_work_array(phba);
4810         if (vports)
4811                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4812                         lpfc_sli4_perform_vport_cvl(vports[i]);
4813         lpfc_destroy_vport_work_array(phba, vports);
4814 }
4815
4816 /**
4817  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4818  * @phba: pointer to lpfc hba data structure.
4819  * @acqe_link: pointer to the async fcoe completion queue entry.
4820  *
4821  * This routine is to handle the SLI4 asynchronous fcoe event.
4822  **/
4823 static void
4824 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4825                         struct lpfc_acqe_fip *acqe_fip)
4826 {
4827         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4828         int rc;
4829         struct lpfc_vport *vport;
4830         struct lpfc_nodelist *ndlp;
4831         struct Scsi_Host  *shost;
4832         int active_vlink_present;
4833         struct lpfc_vport **vports;
4834         int i;
4835
4836         phba->fc_eventTag = acqe_fip->event_tag;
4837         phba->fcoe_eventtag = acqe_fip->event_tag;
4838         switch (event_type) {
4839         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4840         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4841                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4842                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4843                                         LOG_DISCOVERY,
4844                                         "2546 New FCF event, evt_tag:x%x, "
4845                                         "index:x%x\n",
4846                                         acqe_fip->event_tag,
4847                                         acqe_fip->index);
4848                 else
4849                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4850                                         LOG_DISCOVERY,
4851                                         "2788 FCF param modified event, "
4852                                         "evt_tag:x%x, index:x%x\n",
4853                                         acqe_fip->event_tag,
4854                                         acqe_fip->index);
4855                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4856                         /*
4857                          * During period of FCF discovery, read the FCF
4858                          * table record indexed by the event to update
4859                          * FCF roundrobin failover eligible FCF bmask.
4860                          */
4861                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4862                                         LOG_DISCOVERY,
4863                                         "2779 Read FCF (x%x) for updating "
4864                                         "roundrobin FCF failover bmask\n",
4865                                         acqe_fip->index);
4866                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4867                 }
4868
4869                 /* If the FCF discovery is in progress, do nothing. */
4870                 spin_lock_irq(&phba->hbalock);
4871                 if (phba->hba_flag & FCF_TS_INPROG) {
4872                         spin_unlock_irq(&phba->hbalock);
4873                         break;
4874                 }
4875                 /* If fast FCF failover rescan event is pending, do nothing */
4876                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4877                         spin_unlock_irq(&phba->hbalock);
4878                         break;
4879                 }
4880
4881                 /* If the FCF has been in discovered state, do nothing. */
4882                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4883                         spin_unlock_irq(&phba->hbalock);
4884                         break;
4885                 }
4886                 spin_unlock_irq(&phba->hbalock);
4887
4888                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4889                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4890                                 "2770 Start FCF table scan per async FCF "
4891                                 "event, evt_tag:x%x, index:x%x\n",
4892                                 acqe_fip->event_tag, acqe_fip->index);
4893                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4894                                                      LPFC_FCOE_FCF_GET_FIRST);
4895                 if (rc)
4896                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4897                                         "2547 Issue FCF scan read FCF mailbox "
4898                                         "command failed (x%x)\n", rc);
4899                 break;
4900
4901         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4902                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4903                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4904                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4905                         acqe_fip->event_tag);
4906                 break;
4907
4908         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4909                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4910                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4911                         "2549 FCF (x%x) disconnected from network, "
4912                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4913                 /*
4914                  * If we are in the middle of FCF failover process, clear
4915                  * the corresponding FCF bit in the roundrobin bitmap.
4916                  */
4917                 spin_lock_irq(&phba->hbalock);
4918                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
4919                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
4920                         spin_unlock_irq(&phba->hbalock);
4921                         /* Update FLOGI FCF failover eligible FCF bmask */
4922                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4923                         break;
4924                 }
4925                 spin_unlock_irq(&phba->hbalock);
4926
4927                 /* If the event is not for currently used fcf do nothing */
4928                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4929                         break;
4930
4931                 /*
4932                  * Otherwise, request the port to rediscover the entire FCF
4933                  * table for a fast recovery from case that the current FCF
4934                  * is no longer valid as we are not in the middle of FCF
4935                  * failover process already.
4936                  */
4937                 spin_lock_irq(&phba->hbalock);
4938                 /* Mark the fast failover process in progress */
4939                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4940                 spin_unlock_irq(&phba->hbalock);
4941
4942                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4943                                 "2771 Start FCF fast failover process due to "
4944                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4945                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4946                 rc = lpfc_sli4_redisc_fcf_table(phba);
4947                 if (rc) {
4948                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4949                                         LOG_DISCOVERY,
4950                                         "2772 Issue FCF rediscover mabilbox "
4951                                         "command failed, fail through to FCF "
4952                                         "dead event\n");
4953                         spin_lock_irq(&phba->hbalock);
4954                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4955                         spin_unlock_irq(&phba->hbalock);
4956                         /*
4957                          * Last resort will fail over by treating this
4958                          * as a link down to FCF registration.
4959                          */
4960                         lpfc_sli4_fcf_dead_failthrough(phba);
4961                 } else {
4962                         /* Reset FCF roundrobin bmask for new discovery */
4963                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4964                         /*
4965                          * Handling fast FCF failover to a DEAD FCF event is
4966                          * considered equalivant to receiving CVL to all vports.
4967                          */
4968                         lpfc_sli4_perform_all_vport_cvl(phba);
4969                 }
4970                 break;
4971         case LPFC_FIP_EVENT_TYPE_CVL:
4972                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4973                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4974                         "2718 Clear Virtual Link Received for VPI 0x%x"
4975                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4976
4977                 vport = lpfc_find_vport_by_vpid(phba,
4978                                                 acqe_fip->index);
4979                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4980                 if (!ndlp)
4981                         break;
4982                 active_vlink_present = 0;
4983
4984                 vports = lpfc_create_vport_work_array(phba);
4985                 if (vports) {
4986                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4987                                         i++) {
4988                                 if ((!(vports[i]->fc_flag &
4989                                         FC_VPORT_CVL_RCVD)) &&
4990                                         (vports[i]->port_state > LPFC_FDISC)) {
4991                                         active_vlink_present = 1;
4992                                         break;
4993                                 }
4994                         }
4995                         lpfc_destroy_vport_work_array(phba, vports);
4996                 }
4997
4998                 /*
4999                  * Don't re-instantiate if vport is marked for deletion.
5000                  * If we are here first then vport_delete is going to wait
5001                  * for discovery to complete.
5002                  */
5003                 if (!(vport->load_flag & FC_UNLOADING) &&
5004                                         active_vlink_present) {
5005                         /*
5006                          * If there are other active VLinks present,
5007                          * re-instantiate the Vlink using FDISC.
5008                          */
5009                         mod_timer(&ndlp->nlp_delayfunc,
5010                                   jiffies + msecs_to_jiffies(1000));
5011                         shost = lpfc_shost_from_vport(vport);
5012                         spin_lock_irq(shost->host_lock);
5013                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5014                         spin_unlock_irq(shost->host_lock);
5015                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5016                         vport->port_state = LPFC_FDISC;
5017                 } else {
5018                         /*
5019                          * Otherwise, we request port to rediscover
5020                          * the entire FCF table for a fast recovery
5021                          * from possible case that the current FCF
5022                          * is no longer valid if we are not already
5023                          * in the FCF failover process.
5024                          */
5025                         spin_lock_irq(&phba->hbalock);
5026                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5027                                 spin_unlock_irq(&phba->hbalock);
5028                                 break;
5029                         }
5030                         /* Mark the fast failover process in progress */
5031                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5032                         spin_unlock_irq(&phba->hbalock);
5033                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5034                                         LOG_DISCOVERY,
5035                                         "2773 Start FCF failover per CVL, "
5036                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5037                         rc = lpfc_sli4_redisc_fcf_table(phba);
5038                         if (rc) {
5039                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5040                                                 LOG_DISCOVERY,
5041                                                 "2774 Issue FCF rediscover "
5042                                                 "mabilbox command failed, "
5043                                                 "through to CVL event\n");
5044                                 spin_lock_irq(&phba->hbalock);
5045                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5046                                 spin_unlock_irq(&phba->hbalock);
5047                                 /*
5048                                  * Last resort will be re-try on the
5049                                  * the current registered FCF entry.
5050                                  */
5051                                 lpfc_retry_pport_discovery(phba);
5052                         } else
5053                                 /*
5054                                  * Reset FCF roundrobin bmask for new
5055                                  * discovery.
5056                                  */
5057                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5058                 }
5059                 break;
5060         default:
5061                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5062                         "0288 Unknown FCoE event type 0x%x event tag "
5063                         "0x%x\n", event_type, acqe_fip->event_tag);
5064                 break;
5065         }
5066 }
5067
5068 /**
5069  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5070  * @phba: pointer to lpfc hba data structure.
5071  * @acqe_link: pointer to the async dcbx completion queue entry.
5072  *
5073  * This routine is to handle the SLI4 asynchronous dcbx event.
5074  **/
5075 static void
5076 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5077                          struct lpfc_acqe_dcbx *acqe_dcbx)
5078 {
5079         phba->fc_eventTag = acqe_dcbx->event_tag;
5080         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5081                         "0290 The SLI4 DCBX asynchronous event is not "
5082                         "handled yet\n");
5083 }
5084
5085 /**
5086  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5087  * @phba: pointer to lpfc hba data structure.
5088  * @acqe_link: pointer to the async grp5 completion queue entry.
5089  *
5090  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5091  * is an asynchronous notified of a logical link speed change.  The Port
5092  * reports the logical link speed in units of 10Mbps.
5093  **/
5094 static void
5095 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5096                          struct lpfc_acqe_grp5 *acqe_grp5)
5097 {
5098         uint16_t prev_ll_spd;
5099
5100         phba->fc_eventTag = acqe_grp5->event_tag;
5101         phba->fcoe_eventtag = acqe_grp5->event_tag;
5102         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5103         phba->sli4_hba.link_state.logical_speed =
5104                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5105         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5106                         "2789 GRP5 Async Event: Updating logical link speed "
5107                         "from %dMbps to %dMbps\n", prev_ll_spd,
5108                         phba->sli4_hba.link_state.logical_speed);
5109 }
5110
5111 /**
5112  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5113  * @phba: pointer to lpfc hba data structure.
5114  *
5115  * This routine is invoked by the worker thread to process all the pending
5116  * SLI4 asynchronous events.
5117  **/
5118 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5119 {
5120         struct lpfc_cq_event *cq_event;
5121
5122         /* First, declare the async event has been handled */
5123         spin_lock_irq(&phba->hbalock);
5124         phba->hba_flag &= ~ASYNC_EVENT;
5125         spin_unlock_irq(&phba->hbalock);
5126         /* Now, handle all the async events */
5127         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5128                 /* Get the first event from the head of the event queue */
5129                 spin_lock_irq(&phba->hbalock);
5130                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5131                                  cq_event, struct lpfc_cq_event, list);
5132                 spin_unlock_irq(&phba->hbalock);
5133                 /* Process the asynchronous event */
5134                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5135                 case LPFC_TRAILER_CODE_LINK:
5136                         lpfc_sli4_async_link_evt(phba,
5137                                                  &cq_event->cqe.acqe_link);
5138                         break;
5139                 case LPFC_TRAILER_CODE_FCOE:
5140                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5141                         break;
5142                 case LPFC_TRAILER_CODE_DCBX:
5143                         lpfc_sli4_async_dcbx_evt(phba,
5144                                                  &cq_event->cqe.acqe_dcbx);
5145                         break;
5146                 case LPFC_TRAILER_CODE_GRP5:
5147                         lpfc_sli4_async_grp5_evt(phba,
5148                                                  &cq_event->cqe.acqe_grp5);
5149                         break;
5150                 case LPFC_TRAILER_CODE_FC:
5151                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5152                         break;
5153                 case LPFC_TRAILER_CODE_SLI:
5154                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5155                         break;
5156                 default:
5157                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5158                                         "1804 Invalid asynchrous event code: "
5159                                         "x%x\n", bf_get(lpfc_trailer_code,
5160                                         &cq_event->cqe.mcqe_cmpl));
5161                         break;
5162                 }
5163                 /* Free the completion event processed to the free pool */
5164                 lpfc_sli4_cq_event_release(phba, cq_event);
5165         }
5166 }
5167
5168 /**
5169  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5170  * @phba: pointer to lpfc hba data structure.
5171  *
5172  * This routine is invoked by the worker thread to process FCF table
5173  * rediscovery pending completion event.
5174  **/
5175 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5176 {
5177         int rc;
5178
5179         spin_lock_irq(&phba->hbalock);
5180         /* Clear FCF rediscovery timeout event */
5181         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5182         /* Clear driver fast failover FCF record flag */
5183         phba->fcf.failover_rec.flag = 0;
5184         /* Set state for FCF fast failover */
5185         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5186         spin_unlock_irq(&phba->hbalock);
5187
5188         /* Scan FCF table from the first entry to re-discover SAN */
5189         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5190                         "2777 Start post-quiescent FCF table scan\n");
5191         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5192         if (rc)
5193                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5194                                 "2747 Issue FCF scan read FCF mailbox "
5195                                 "command failed 0x%x\n", rc);
5196 }
5197
5198 /**
5199  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5200  * @phba: pointer to lpfc hba data structure.
5201  * @dev_grp: The HBA PCI-Device group number.
5202  *
5203  * This routine is invoked to set up the per HBA PCI-Device group function
5204  * API jump table entries.
5205  *
5206  * Return: 0 if success, otherwise -ENODEV
5207  **/
5208 int
5209 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5210 {
5211         int rc;
5212
5213         /* Set up lpfc PCI-device group */
5214         phba->pci_dev_grp = dev_grp;
5215
5216         /* The LPFC_PCI_DEV_OC uses SLI4 */
5217         if (dev_grp == LPFC_PCI_DEV_OC)
5218                 phba->sli_rev = LPFC_SLI_REV4;
5219
5220         /* Set up device INIT API function jump table */
5221         rc = lpfc_init_api_table_setup(phba, dev_grp);
5222         if (rc)
5223                 return -ENODEV;
5224         /* Set up SCSI API function jump table */
5225         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5226         if (rc)
5227                 return -ENODEV;
5228         /* Set up SLI API function jump table */
5229         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5230         if (rc)
5231                 return -ENODEV;
5232         /* Set up MBOX API function jump table */
5233         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5234         if (rc)
5235                 return -ENODEV;
5236
5237         return 0;
5238 }
5239
5240 /**
5241  * lpfc_log_intr_mode - Log the active interrupt mode
5242  * @phba: pointer to lpfc hba data structure.
5243  * @intr_mode: active interrupt mode adopted.
5244  *
5245  * This routine it invoked to log the currently used active interrupt mode
5246  * to the device.
5247  **/
5248 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5249 {
5250         switch (intr_mode) {
5251         case 0:
5252                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5253                                 "0470 Enable INTx interrupt mode.\n");
5254                 break;
5255         case 1:
5256                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5257                                 "0481 Enabled MSI interrupt mode.\n");
5258                 break;
5259         case 2:
5260                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5261                                 "0480 Enabled MSI-X interrupt mode.\n");
5262                 break;
5263         default:
5264                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5265                                 "0482 Illegal interrupt mode.\n");
5266                 break;
5267         }
5268         return;
5269 }
5270
5271 /**
5272  * lpfc_enable_pci_dev - Enable a generic PCI device.
5273  * @phba: pointer to lpfc hba data structure.
5274  *
5275  * This routine is invoked to enable the PCI device that is common to all
5276  * PCI devices.
5277  *
5278  * Return codes
5279  *      0 - successful
5280  *      other values - error
5281  **/
5282 static int
5283 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5284 {
5285         struct pci_dev *pdev;
5286
5287         /* Obtain PCI device reference */
5288         if (!phba->pcidev)
5289                 goto out_error;
5290         else
5291                 pdev = phba->pcidev;
5292         /* Enable PCI device */
5293         if (pci_enable_device_mem(pdev))
5294                 goto out_error;
5295         /* Request PCI resource for the device */
5296         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5297                 goto out_disable_device;
5298         /* Set up device as PCI master and save state for EEH */
5299         pci_set_master(pdev);
5300         pci_try_set_mwi(pdev);
5301         pci_save_state(pdev);
5302
5303         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5304         if (pci_is_pcie(pdev))
5305                 pdev->needs_freset = 1;
5306
5307         return 0;
5308
5309 out_disable_device:
5310         pci_disable_device(pdev);
5311 out_error:
5312         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5313                         "1401 Failed to enable pci device\n");
5314         return -ENODEV;
5315 }
5316
5317 /**
5318  * lpfc_disable_pci_dev - Disable a generic PCI device.
5319  * @phba: pointer to lpfc hba data structure.
5320  *
5321  * This routine is invoked to disable the PCI device that is common to all
5322  * PCI devices.
5323  **/
5324 static void
5325 lpfc_disable_pci_dev(struct lpfc_hba *phba)
5326 {
5327         struct pci_dev *pdev;
5328
5329         /* Obtain PCI device reference */
5330         if (!phba->pcidev)
5331                 return;
5332         else
5333                 pdev = phba->pcidev;
5334         /* Release PCI resource and disable PCI device */
5335         pci_release_mem_regions(pdev);
5336         pci_disable_device(pdev);
5337
5338         return;
5339 }
5340
5341 /**
5342  * lpfc_reset_hba - Reset a hba
5343  * @phba: pointer to lpfc hba data structure.
5344  *
5345  * This routine is invoked to reset a hba device. It brings the HBA
5346  * offline, performs a board restart, and then brings the board back
5347  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
5348  * on outstanding mailbox commands.
5349  **/
5350 void
5351 lpfc_reset_hba(struct lpfc_hba *phba)
5352 {
5353         /* If resets are disabled then set error state and return. */
5354         if (!phba->cfg_enable_hba_reset) {
5355                 phba->link_state = LPFC_HBA_ERROR;
5356                 return;
5357         }
5358         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
5359                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
5360         else
5361                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
5362         lpfc_offline(phba);
5363         lpfc_sli_brdrestart(phba);
5364         lpfc_online(phba);
5365         lpfc_unblock_mgmt_io(phba);
5366 }
5367
5368 /**
5369  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
5370  * @phba: pointer to lpfc hba data structure.
5371  *
5372  * This function enables the PCI SR-IOV virtual functions to a physical
5373  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5374  * enable the number of virtual functions to the physical function. As
5375  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5376  * API call does not considered as an error condition for most of the device.
5377  **/
5378 uint16_t
5379 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
5380 {
5381         struct pci_dev *pdev = phba->pcidev;
5382         uint16_t nr_virtfn;
5383         int pos;
5384
5385         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
5386         if (pos == 0)
5387                 return 0;
5388
5389         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
5390         return nr_virtfn;
5391 }
5392
5393 /**
5394  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
5395  * @phba: pointer to lpfc hba data structure.
5396  * @nr_vfn: number of virtual functions to be enabled.
5397  *
5398  * This function enables the PCI SR-IOV virtual functions to a physical
5399  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5400  * enable the number of virtual functions to the physical function. As
5401  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5402  * API call does not considered as an error condition for most of the device.
5403  **/
5404 int
5405 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
5406 {
5407         struct pci_dev *pdev = phba->pcidev;
5408         uint16_t max_nr_vfn;
5409         int rc;
5410
5411         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
5412         if (nr_vfn > max_nr_vfn) {
5413                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5414                                 "3057 Requested vfs (%d) greater than "
5415                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
5416                 return -EINVAL;
5417         }
5418
5419         rc = pci_enable_sriov(pdev, nr_vfn);
5420         if (rc) {
5421                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5422                                 "2806 Failed to enable sriov on this device "
5423                                 "with vfn number nr_vf:%d, rc:%d\n",
5424                                 nr_vfn, rc);
5425         } else
5426                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5427                                 "2807 Successful enable sriov on this device "
5428                                 "with vfn number nr_vf:%d\n", nr_vfn);
5429         return rc;
5430 }
5431
5432 /**
5433  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5434  * @phba: pointer to lpfc hba data structure.
5435  *
5436  * This routine is invoked to set up the driver internal resources before the
5437  * device specific resource setup to support the HBA device it attached to.
5438  *
5439  * Return codes
5440  *      0 - successful
5441  *      other values - error
5442  **/
5443 static int
5444 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5445 {
5446         struct lpfc_sli *psli = &phba->sli;
5447
5448         /*
5449          * Driver resources common to all SLI revisions
5450          */
5451         atomic_set(&phba->fast_event_count, 0);
5452         spin_lock_init(&phba->hbalock);
5453
5454         /* Initialize ndlp management spinlock */
5455         spin_lock_init(&phba->ndlp_lock);
5456
5457         INIT_LIST_HEAD(&phba->port_list);
5458         INIT_LIST_HEAD(&phba->work_list);
5459         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5460
5461         /* Initialize the wait queue head for the kernel thread */
5462         init_waitqueue_head(&phba->work_waitq);
5463
5464         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5465                         "1403 Protocols supported %s %s %s\n",
5466                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5467                                 "SCSI" : " "),
5468                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5469                                 "NVME" : " "),
5470                         (phba->nvmet_support ? "NVMET" : " "));
5471
5472         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5473                 /* Initialize the scsi buffer list used by driver for scsi IO */
5474                 spin_lock_init(&phba->scsi_buf_list_get_lock);
5475                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5476                 spin_lock_init(&phba->scsi_buf_list_put_lock);
5477                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5478         }
5479
5480         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5481                 (phba->nvmet_support == 0)) {
5482                 /* Initialize the NVME buffer list used by driver for NVME IO */
5483                 spin_lock_init(&phba->nvme_buf_list_get_lock);
5484                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5485                 spin_lock_init(&phba->nvme_buf_list_put_lock);
5486                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5487         }
5488
5489         /* Initialize the fabric iocb list */
5490         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5491
5492         /* Initialize list to save ELS buffers */
5493         INIT_LIST_HEAD(&phba->elsbuf);
5494
5495         /* Initialize FCF connection rec list */
5496         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5497
5498         /* Initialize OAS configuration list */
5499         spin_lock_init(&phba->devicelock);
5500         INIT_LIST_HEAD(&phba->luns);
5501
5502         /* MBOX heartbeat timer */
5503         setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba);
5504         /* Fabric block timer */
5505         setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout,
5506                         (unsigned long)phba);
5507         /* EA polling mode timer */
5508         setup_timer(&phba->eratt_poll, lpfc_poll_eratt,
5509                         (unsigned long)phba);
5510         /* Heartbeat timer */
5511         setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba);
5512
5513         return 0;
5514 }
5515
5516 /**
5517  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5518  * @phba: pointer to lpfc hba data structure.
5519  *
5520  * This routine is invoked to set up the driver internal resources specific to
5521  * support the SLI-3 HBA device it attached to.
5522  *
5523  * Return codes
5524  * 0 - successful
5525  * other values - error
5526  **/
5527 static int
5528 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5529 {
5530         int rc;
5531
5532         /*
5533          * Initialize timers used by driver
5534          */
5535
5536         /* FCP polling mode timer */
5537         setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout,
5538                         (unsigned long)phba);
5539
5540         /* Host attention work mask setup */
5541         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5542         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5543
5544         /* Get all the module params for configuring this host */
5545         lpfc_get_cfgparam(phba);
5546         /* Set up phase-1 common device driver resources */
5547
5548         rc = lpfc_setup_driver_resource_phase1(phba);
5549         if (rc)
5550                 return -ENODEV;
5551
5552         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5553                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5554                 /* check for menlo minimum sg count */
5555                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5556                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5557         }
5558
5559         if (!phba->sli.sli3_ring)
5560                 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING *
5561                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5562         if (!phba->sli.sli3_ring)
5563                 return -ENOMEM;
5564
5565         /*
5566          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5567          * used to create the sg_dma_buf_pool must be dynamically calculated.
5568          */
5569
5570         /* Initialize the host templates the configured values. */
5571         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5572         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5573         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5574
5575         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5576         if (phba->cfg_enable_bg) {
5577                 /*
5578                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5579                  * the FCP rsp, and a BDE for each. Sice we have no control
5580                  * over how many protection data segments the SCSI Layer
5581                  * will hand us (ie: there could be one for every block
5582                  * in the IO), we just allocate enough BDEs to accomidate
5583                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5584                  * minimize the risk of running out.
5585                  */
5586                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5587                         sizeof(struct fcp_rsp) +
5588                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5589
5590                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5591                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5592
5593                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5594                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5595         } else {
5596                 /*
5597                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5598                  * the FCP rsp, a BDE for each, and a BDE for up to
5599                  * cfg_sg_seg_cnt data segments.
5600                  */
5601                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5602                         sizeof(struct fcp_rsp) +
5603                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5604
5605                 /* Total BDEs in BPL for scsi_sg_list */
5606                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5607         }
5608
5609         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5610                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5611                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5612                         phba->cfg_total_seg_cnt);
5613
5614         phba->max_vpi = LPFC_MAX_VPI;
5615         /* This will be set to correct value after config_port mbox */
5616         phba->max_vports = 0;
5617
5618         /*
5619          * Initialize the SLI Layer to run with lpfc HBAs.
5620          */
5621         lpfc_sli_setup(phba);
5622         lpfc_sli_queue_init(phba);
5623
5624         /* Allocate device driver memory */
5625         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5626                 return -ENOMEM;
5627
5628         /*
5629          * Enable sr-iov virtual functions if supported and configured
5630          * through the module parameter.
5631          */
5632         if (phba->cfg_sriov_nr_virtfn > 0) {
5633                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5634                                                  phba->cfg_sriov_nr_virtfn);
5635                 if (rc) {
5636                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5637                                         "2808 Requested number of SR-IOV "
5638                                         "virtual functions (%d) is not "
5639                                         "supported\n",
5640                                         phba->cfg_sriov_nr_virtfn);
5641                         phba->cfg_sriov_nr_virtfn = 0;
5642                 }
5643         }
5644
5645         return 0;
5646 }
5647
5648 /**
5649  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5650  * @phba: pointer to lpfc hba data structure.
5651  *
5652  * This routine is invoked to unset the driver internal resources set up
5653  * specific for supporting the SLI-3 HBA device it attached to.
5654  **/
5655 static void
5656 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5657 {
5658         /* Free device driver memory allocated */
5659         lpfc_mem_free_all(phba);
5660
5661         return;
5662 }
5663
5664 /**
5665  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5666  * @phba: pointer to lpfc hba data structure.
5667  *
5668  * This routine is invoked to set up the driver internal resources specific to
5669  * support the SLI-4 HBA device it attached to.
5670  *
5671  * Return codes
5672  *      0 - successful
5673  *      other values - error
5674  **/
5675 static int
5676 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5677 {
5678         LPFC_MBOXQ_t *mboxq;
5679         MAILBOX_t *mb;
5680         int rc, i, max_buf_size;
5681         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5682         struct lpfc_mqe *mqe;
5683         int longs;
5684         int fof_vectors = 0;
5685         uint64_t wwn;
5686
5687         phba->sli4_hba.num_online_cpu = num_online_cpus();
5688         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
5689         phba->sli4_hba.curr_disp_cpu = 0;
5690
5691         /* Get all the module params for configuring this host */
5692         lpfc_get_cfgparam(phba);
5693
5694         /* Set up phase-1 common device driver resources */
5695         rc = lpfc_setup_driver_resource_phase1(phba);
5696         if (rc)
5697                 return -ENODEV;
5698
5699         /* Before proceed, wait for POST done and device ready */
5700         rc = lpfc_sli4_post_status_check(phba);
5701         if (rc)
5702                 return -ENODEV;
5703
5704         /*
5705          * Initialize timers used by driver
5706          */
5707
5708         setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba);
5709
5710         /* FCF rediscover timer */
5711         setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo,
5712                         (unsigned long)phba);
5713
5714         /*
5715          * Control structure for handling external multi-buffer mailbox
5716          * command pass-through.
5717          */
5718         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5719                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5720         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5721
5722         phba->max_vpi = LPFC_MAX_VPI;
5723
5724         /* This will be set to correct value after the read_config mbox */
5725         phba->max_vports = 0;
5726
5727         /* Program the default value of vlan_id and fc_map */
5728         phba->valid_vlan = 0;
5729         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5730         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5731         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5732
5733         /*
5734          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5735          * we will associate a new ring, for each EQ/CQ/WQ tuple.
5736          * The WQ create will allocate the ring.
5737          */
5738
5739         /*
5740          * It doesn't matter what family our adapter is in, we are
5741          * limited to 2 Pages, 512 SGEs, for our SGL.
5742          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5743          */
5744         max_buf_size = (2 * SLI4_PAGE_SIZE);
5745         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5746                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5747
5748         /*
5749          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
5750          * used to create the sg_dma_buf_pool must be calculated.
5751          */
5752         if (phba->cfg_enable_bg) {
5753                 /*
5754                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
5755                  * the FCP rsp, and a SGE. Sice we have no control
5756                  * over how many protection segments the SCSI Layer
5757                  * will hand us (ie: there could be one for every block
5758                  * in the IO), just allocate enough SGEs to accomidate
5759                  * our max amount and we need to limit lpfc_sg_seg_cnt
5760                  * to minimize the risk of running out.
5761                  */
5762                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5763                                 sizeof(struct fcp_rsp) + max_buf_size;
5764
5765                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5766                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5767
5768                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5769                         phba->cfg_sg_seg_cnt =
5770                                 LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5771         } else {
5772                 /*
5773                  * The scsi_buf for a regular I/O holds the FCP cmnd,
5774                  * the FCP rsp, a SGE for each, and a SGE for up to
5775                  * cfg_sg_seg_cnt data segments.
5776                  */
5777                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5778                                 sizeof(struct fcp_rsp) +
5779                                 ((phba->cfg_sg_seg_cnt + 2) *
5780                                 sizeof(struct sli4_sge));
5781
5782                 /* Total SGEs for scsi_sg_list */
5783                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5784
5785                 /*
5786                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only
5787                  * need to post 1 page for the SGL.
5788                  */
5789         }
5790
5791         /* Initialize the host templates with the updated values. */
5792         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5793         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5794         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5795
5796         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5797                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5798         else
5799                 phba->cfg_sg_dma_buf_size =
5800                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5801
5802         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5803                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5804                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5805                         phba->cfg_total_seg_cnt);
5806
5807         /* Initialize buffer queue management fields */
5808         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
5809         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5810         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5811
5812         /*
5813          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5814          */
5815         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5816                 /* Initialize the Abort scsi buffer list used by driver */
5817                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5818                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5819         }
5820
5821         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
5822                 /* Initialize the Abort nvme buffer list used by driver */
5823                 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
5824                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
5825                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
5826                 /* Fast-path XRI aborted CQ Event work queue list */
5827                 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
5828         }
5829
5830         /* This abort list used by worker thread */
5831         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
5832         spin_lock_init(&phba->sli4_hba.nvmet_io_lock);
5833
5834         /*
5835          * Initialize driver internal slow-path work queues
5836          */
5837
5838         /* Driver internel slow-path CQ Event pool */
5839         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5840         /* Response IOCB work queue list */
5841         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5842         /* Asynchronous event CQ Event work queue list */
5843         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5844         /* Fast-path XRI aborted CQ Event work queue list */
5845         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5846         /* Slow-path XRI aborted CQ Event work queue list */
5847         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5848         /* Receive queue CQ Event work queue list */
5849         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5850
5851         /* Initialize extent block lists. */
5852         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5853         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5854         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5855         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5856
5857         /* Initialize mboxq lists. If the early init routines fail
5858          * these lists need to be correctly initialized.
5859          */
5860         INIT_LIST_HEAD(&phba->sli.mboxq);
5861         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
5862
5863         /* initialize optic_state to 0xFF */
5864         phba->sli4_hba.lnk_info.optic_state = 0xff;
5865
5866         /* Allocate device driver memory */
5867         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5868         if (rc)
5869                 return -ENOMEM;
5870
5871         /* IF Type 2 ports get initialized now. */
5872         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5873             LPFC_SLI_INTF_IF_TYPE_2) {
5874                 rc = lpfc_pci_function_reset(phba);
5875                 if (unlikely(rc)) {
5876                         rc = -ENODEV;
5877                         goto out_free_mem;
5878                 }
5879                 phba->temp_sensor_support = 1;
5880         }
5881
5882         /* Create the bootstrap mailbox command */
5883         rc = lpfc_create_bootstrap_mbox(phba);
5884         if (unlikely(rc))
5885                 goto out_free_mem;
5886
5887         /* Set up the host's endian order with the device. */
5888         rc = lpfc_setup_endian_order(phba);
5889         if (unlikely(rc))
5890                 goto out_free_bsmbx;
5891
5892         /* Set up the hba's configuration parameters. */
5893         rc = lpfc_sli4_read_config(phba);
5894         if (unlikely(rc))
5895                 goto out_free_bsmbx;
5896         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5897         if (unlikely(rc))
5898                 goto out_free_bsmbx;
5899
5900         /* IF Type 0 ports get initialized now. */
5901         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5902             LPFC_SLI_INTF_IF_TYPE_0) {
5903                 rc = lpfc_pci_function_reset(phba);
5904                 if (unlikely(rc))
5905                         goto out_free_bsmbx;
5906         }
5907
5908         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5909                                                        GFP_KERNEL);
5910         if (!mboxq) {
5911                 rc = -ENOMEM;
5912                 goto out_free_bsmbx;
5913         }
5914
5915         /* Check for NVMET being configured */
5916         phba->nvmet_support = 0;
5917         if (lpfc_enable_nvmet_cnt) {
5918
5919                 /* First get WWN of HBA instance */
5920                 lpfc_read_nv(phba, mboxq);
5921                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5922                 if (rc != MBX_SUCCESS) {
5923                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5924                                         "6016 Mailbox failed , mbxCmd x%x "
5925                                         "READ_NV, mbxStatus x%x\n",
5926                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5927                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
5928                         mempool_free(mboxq, phba->mbox_mem_pool);
5929                         rc = -EIO;
5930                         goto out_free_bsmbx;
5931                 }
5932                 mb = &mboxq->u.mb;
5933                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
5934                        sizeof(uint64_t));
5935                 wwn = cpu_to_be64(wwn);
5936                 phba->sli4_hba.wwnn.u.name = wwn;
5937                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
5938                        sizeof(uint64_t));
5939                 /* wwn is WWPN of HBA instance */
5940                 wwn = cpu_to_be64(wwn);
5941                 phba->sli4_hba.wwpn.u.name = wwn;
5942
5943                 /* Check to see if it matches any module parameter */
5944                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
5945                         if (wwn == lpfc_enable_nvmet[i]) {
5946 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
5947                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5948                                                 "6017 NVME Target %016llx\n",
5949                                                 wwn);
5950                                 phba->nvmet_support = 1; /* a match */
5951 #else
5952                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5953                                                 "6021 Can't enable NVME Target."
5954                                                 " NVME_TARGET_FC infrastructure"
5955                                                 " is not in kernel\n");
5956 #endif
5957                         }
5958                 }
5959         }
5960
5961         lpfc_nvme_mod_param_dep(phba);
5962
5963         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5964         lpfc_supported_pages(mboxq);
5965         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5966         if (!rc) {
5967                 mqe = &mboxq->u.mqe;
5968                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5969                        LPFC_MAX_SUPPORTED_PAGES);
5970                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5971                         switch (pn_page[i]) {
5972                         case LPFC_SLI4_PARAMETERS:
5973                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5974                                 break;
5975                         default:
5976                                 break;
5977                         }
5978                 }
5979                 /* Read the port's SLI4 Parameters capabilities if supported. */
5980                 if (phba->sli4_hba.pc_sli4_params.supported)
5981                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5982                 if (rc) {
5983                         mempool_free(mboxq, phba->mbox_mem_pool);
5984                         rc = -EIO;
5985                         goto out_free_bsmbx;
5986                 }
5987         }
5988
5989         /*
5990          * Get sli4 parameters that override parameters from Port capabilities.
5991          * If this call fails, it isn't critical unless the SLI4 parameters come
5992          * back in conflict.
5993          */
5994         rc = lpfc_get_sli4_parameters(phba, mboxq);
5995         if (rc) {
5996                 if (phba->sli4_hba.extents_in_use &&
5997                     phba->sli4_hba.rpi_hdrs_in_use) {
5998                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5999                                 "2999 Unsupported SLI4 Parameters "
6000                                 "Extents and RPI headers enabled.\n");
6001                 }
6002                 mempool_free(mboxq, phba->mbox_mem_pool);
6003                 goto out_free_bsmbx;
6004         }
6005
6006         mempool_free(mboxq, phba->mbox_mem_pool);
6007
6008         /* Verify OAS is supported */
6009         lpfc_sli4_oas_verify(phba);
6010         if (phba->cfg_fof)
6011                 fof_vectors = 1;
6012
6013         /* Verify all the SLI4 queues */
6014         rc = lpfc_sli4_queue_verify(phba);
6015         if (rc)
6016                 goto out_free_bsmbx;
6017
6018         /* Create driver internal CQE event pool */
6019         rc = lpfc_sli4_cq_event_pool_create(phba);
6020         if (rc)
6021                 goto out_free_bsmbx;
6022
6023         /* Initialize sgl lists per host */
6024         lpfc_init_sgl_list(phba);
6025
6026         /* Allocate and initialize active sgl array */
6027         rc = lpfc_init_active_sgl_array(phba);
6028         if (rc) {
6029                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6030                                 "1430 Failed to initialize sgl list.\n");
6031                 goto out_destroy_cq_event_pool;
6032         }
6033         rc = lpfc_sli4_init_rpi_hdrs(phba);
6034         if (rc) {
6035                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6036                                 "1432 Failed to initialize rpi headers.\n");
6037                 goto out_free_active_sgl;
6038         }
6039
6040         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6041         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6042         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
6043                                          GFP_KERNEL);
6044         if (!phba->fcf.fcf_rr_bmask) {
6045                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6046                                 "2759 Failed allocate memory for FCF round "
6047                                 "robin failover bmask\n");
6048                 rc = -ENOMEM;
6049                 goto out_remove_rpi_hdrs;
6050         }
6051
6052         phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6053                                                 sizeof(struct lpfc_hba_eq_hdl),
6054                                                 GFP_KERNEL);
6055         if (!phba->sli4_hba.hba_eq_hdl) {
6056                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6057                                 "2572 Failed allocate memory for "
6058                                 "fast-path per-EQ handle array\n");
6059                 rc = -ENOMEM;
6060                 goto out_free_fcf_rr_bmask;
6061         }
6062
6063         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6064                                         sizeof(struct lpfc_vector_map_info),
6065                                         GFP_KERNEL);
6066         if (!phba->sli4_hba.cpu_map) {
6067                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6068                                 "3327 Failed allocate memory for msi-x "
6069                                 "interrupt vector mapping\n");
6070                 rc = -ENOMEM;
6071                 goto out_free_hba_eq_hdl;
6072         }
6073         if (lpfc_used_cpu == NULL) {
6074                 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6075                                                 GFP_KERNEL);
6076                 if (!lpfc_used_cpu) {
6077                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6078                                         "3335 Failed allocate memory for msi-x "
6079                                         "interrupt vector mapping\n");
6080                         kfree(phba->sli4_hba.cpu_map);
6081                         rc = -ENOMEM;
6082                         goto out_free_hba_eq_hdl;
6083                 }
6084                 for (i = 0; i < lpfc_present_cpu; i++)
6085                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6086         }
6087
6088         /*
6089          * Enable sr-iov virtual functions if supported and configured
6090          * through the module parameter.
6091          */
6092         if (phba->cfg_sriov_nr_virtfn > 0) {
6093                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6094                                                  phba->cfg_sriov_nr_virtfn);
6095                 if (rc) {
6096                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6097                                         "3020 Requested number of SR-IOV "
6098                                         "virtual functions (%d) is not "
6099                                         "supported\n",
6100                                         phba->cfg_sriov_nr_virtfn);
6101                         phba->cfg_sriov_nr_virtfn = 0;
6102                 }
6103         }
6104
6105         return 0;
6106
6107 out_free_hba_eq_hdl:
6108         kfree(phba->sli4_hba.hba_eq_hdl);
6109 out_free_fcf_rr_bmask:
6110         kfree(phba->fcf.fcf_rr_bmask);
6111 out_remove_rpi_hdrs:
6112         lpfc_sli4_remove_rpi_hdrs(phba);
6113 out_free_active_sgl:
6114         lpfc_free_active_sgl(phba);
6115 out_destroy_cq_event_pool:
6116         lpfc_sli4_cq_event_pool_destroy(phba);
6117 out_free_bsmbx:
6118         lpfc_destroy_bootstrap_mbox(phba);
6119 out_free_mem:
6120         lpfc_mem_free(phba);
6121         return rc;
6122 }
6123
6124 /**
6125  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6126  * @phba: pointer to lpfc hba data structure.
6127  *
6128  * This routine is invoked to unset the driver internal resources set up
6129  * specific for supporting the SLI-4 HBA device it attached to.
6130  **/
6131 static void
6132 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6133 {
6134         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6135
6136         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6137         kfree(phba->sli4_hba.cpu_map);
6138         phba->sli4_hba.num_present_cpu = 0;
6139         phba->sli4_hba.num_online_cpu = 0;
6140         phba->sli4_hba.curr_disp_cpu = 0;
6141
6142         /* Free memory allocated for fast-path work queue handles */
6143         kfree(phba->sli4_hba.hba_eq_hdl);
6144
6145         /* Free the allocated rpi headers. */
6146         lpfc_sli4_remove_rpi_hdrs(phba);
6147         lpfc_sli4_remove_rpis(phba);
6148
6149         /* Free eligible FCF index bmask */
6150         kfree(phba->fcf.fcf_rr_bmask);
6151
6152         /* Free the ELS sgl list */
6153         lpfc_free_active_sgl(phba);
6154         lpfc_free_els_sgl_list(phba);
6155         lpfc_free_nvmet_sgl_list(phba);
6156
6157         /* Free the completion queue EQ event pool */
6158         lpfc_sli4_cq_event_release_all(phba);
6159         lpfc_sli4_cq_event_pool_destroy(phba);
6160
6161         /* Release resource identifiers. */
6162         lpfc_sli4_dealloc_resource_identifiers(phba);
6163
6164         /* Free the bsmbx region. */
6165         lpfc_destroy_bootstrap_mbox(phba);
6166
6167         /* Free the SLI Layer memory with SLI4 HBAs */
6168         lpfc_mem_free_all(phba);
6169
6170         /* Free the current connect table */
6171         list_for_each_entry_safe(conn_entry, next_conn_entry,
6172                 &phba->fcf_conn_rec_list, list) {
6173                 list_del_init(&conn_entry->list);
6174                 kfree(conn_entry);
6175         }
6176
6177         return;
6178 }
6179
6180 /**
6181  * lpfc_init_api_table_setup - Set up init api function jump table
6182  * @phba: The hba struct for which this call is being executed.
6183  * @dev_grp: The HBA PCI-Device group number.
6184  *
6185  * This routine sets up the device INIT interface API function jump table
6186  * in @phba struct.
6187  *
6188  * Returns: 0 - success, -ENODEV - failure.
6189  **/
6190 int
6191 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6192 {
6193         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6194         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6195         phba->lpfc_selective_reset = lpfc_selective_reset;
6196         switch (dev_grp) {
6197         case LPFC_PCI_DEV_LP:
6198                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6199                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6200                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6201                 break;
6202         case LPFC_PCI_DEV_OC:
6203                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6204                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6205                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6206                 break;
6207         default:
6208                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6209                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6210                                 dev_grp);
6211                 return -ENODEV;
6212                 break;
6213         }
6214         return 0;
6215 }
6216
6217 /**
6218  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6219  * @phba: pointer to lpfc hba data structure.
6220  *
6221  * This routine is invoked to set up the driver internal resources after the
6222  * device specific resource setup to support the HBA device it attached to.
6223  *
6224  * Return codes
6225  *      0 - successful
6226  *      other values - error
6227  **/
6228 static int
6229 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6230 {
6231         int error;
6232
6233         /* Startup the kernel thread for this host adapter. */
6234         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6235                                           "lpfc_worker_%d", phba->brd_no);
6236         if (IS_ERR(phba->worker_thread)) {
6237                 error = PTR_ERR(phba->worker_thread);
6238                 return error;
6239         }
6240
6241         return 0;
6242 }
6243
6244 /**
6245  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6246  * @phba: pointer to lpfc hba data structure.
6247  *
6248  * This routine is invoked to unset the driver internal resources set up after
6249  * the device specific resource setup for supporting the HBA device it
6250  * attached to.
6251  **/
6252 static void
6253 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6254 {
6255         /* Stop kernel worker thread */
6256         kthread_stop(phba->worker_thread);
6257 }
6258
6259 /**
6260  * lpfc_free_iocb_list - Free iocb list.
6261  * @phba: pointer to lpfc hba data structure.
6262  *
6263  * This routine is invoked to free the driver's IOCB list and memory.
6264  **/
6265 static void
6266 lpfc_free_iocb_list(struct lpfc_hba *phba)
6267 {
6268         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6269
6270         spin_lock_irq(&phba->hbalock);
6271         list_for_each_entry_safe(iocbq_entry, iocbq_next,
6272                                  &phba->lpfc_iocb_list, list) {
6273                 list_del(&iocbq_entry->list);
6274                 kfree(iocbq_entry);
6275                 phba->total_iocbq_bufs--;
6276         }
6277         spin_unlock_irq(&phba->hbalock);
6278
6279         return;
6280 }
6281
6282 /**
6283  * lpfc_init_iocb_list - Allocate and initialize iocb list.
6284  * @phba: pointer to lpfc hba data structure.
6285  *
6286  * This routine is invoked to allocate and initizlize the driver's IOCB
6287  * list and set up the IOCB tag array accordingly.
6288  *
6289  * Return codes
6290  *      0 - successful
6291  *      other values - error
6292  **/
6293 static int
6294 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6295 {
6296         struct lpfc_iocbq *iocbq_entry = NULL;
6297         uint16_t iotag;
6298         int i;
6299
6300         /* Initialize and populate the iocb list per host.  */
6301         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6302         for (i = 0; i < iocb_count; i++) {
6303                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6304                 if (iocbq_entry == NULL) {
6305                         printk(KERN_ERR "%s: only allocated %d iocbs of "
6306                                 "expected %d count. Unloading driver.\n",
6307                                 __func__, i, LPFC_IOCB_LIST_CNT);
6308                         goto out_free_iocbq;
6309                 }
6310
6311                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6312                 if (iotag == 0) {
6313                         kfree(iocbq_entry);
6314                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
6315                                 "Unloading driver.\n", __func__);
6316                         goto out_free_iocbq;
6317                 }
6318                 iocbq_entry->sli4_lxritag = NO_XRI;
6319                 iocbq_entry->sli4_xritag = NO_XRI;
6320
6321                 spin_lock_irq(&phba->hbalock);
6322                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6323                 phba->total_iocbq_bufs++;
6324                 spin_unlock_irq(&phba->hbalock);
6325         }
6326
6327         return 0;
6328
6329 out_free_iocbq:
6330         lpfc_free_iocb_list(phba);
6331
6332         return -ENOMEM;
6333 }
6334
6335 /**
6336  * lpfc_free_sgl_list - Free a given sgl list.
6337  * @phba: pointer to lpfc hba data structure.
6338  * @sglq_list: pointer to the head of sgl list.
6339  *
6340  * This routine is invoked to free a give sgl list and memory.
6341  **/
6342 void
6343 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6344 {
6345         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6346
6347         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6348                 list_del(&sglq_entry->list);
6349                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6350                 kfree(sglq_entry);
6351         }
6352 }
6353
6354 /**
6355  * lpfc_free_els_sgl_list - Free els sgl list.
6356  * @phba: pointer to lpfc hba data structure.
6357  *
6358  * This routine is invoked to free the driver's els sgl list and memory.
6359  **/
6360 static void
6361 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6362 {
6363         LIST_HEAD(sglq_list);
6364
6365         /* Retrieve all els sgls from driver list */
6366         spin_lock_irq(&phba->hbalock);
6367         spin_lock(&phba->sli4_hba.sgl_list_lock);
6368         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6369         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6370         spin_unlock_irq(&phba->hbalock);
6371
6372         /* Now free the sgl list */
6373         lpfc_free_sgl_list(phba, &sglq_list);
6374 }
6375
6376 /**
6377  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6378  * @phba: pointer to lpfc hba data structure.
6379  *
6380  * This routine is invoked to free the driver's nvmet sgl list and memory.
6381  **/
6382 static void
6383 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6384 {
6385         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6386         LIST_HEAD(sglq_list);
6387
6388         /* Retrieve all nvmet sgls from driver list */
6389         spin_lock_irq(&phba->hbalock);
6390         spin_lock(&phba->sli4_hba.sgl_list_lock);
6391         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6392         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6393         spin_unlock_irq(&phba->hbalock);
6394
6395         /* Now free the sgl list */
6396         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6397                 list_del(&sglq_entry->list);
6398                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6399                 kfree(sglq_entry);
6400         }
6401 }
6402
6403 /**
6404  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6405  * @phba: pointer to lpfc hba data structure.
6406  *
6407  * This routine is invoked to allocate the driver's active sgl memory.
6408  * This array will hold the sglq_entry's for active IOs.
6409  **/
6410 static int
6411 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6412 {
6413         int size;
6414         size = sizeof(struct lpfc_sglq *);
6415         size *= phba->sli4_hba.max_cfg_param.max_xri;
6416
6417         phba->sli4_hba.lpfc_sglq_active_list =
6418                 kzalloc(size, GFP_KERNEL);
6419         if (!phba->sli4_hba.lpfc_sglq_active_list)
6420                 return -ENOMEM;
6421         return 0;
6422 }
6423
6424 /**
6425  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6426  * @phba: pointer to lpfc hba data structure.
6427  *
6428  * This routine is invoked to walk through the array of active sglq entries
6429  * and free all of the resources.
6430  * This is just a place holder for now.
6431  **/
6432 static void
6433 lpfc_free_active_sgl(struct lpfc_hba *phba)
6434 {
6435         kfree(phba->sli4_hba.lpfc_sglq_active_list);
6436 }
6437
6438 /**
6439  * lpfc_init_sgl_list - Allocate and initialize sgl list.
6440  * @phba: pointer to lpfc hba data structure.
6441  *
6442  * This routine is invoked to allocate and initizlize the driver's sgl
6443  * list and set up the sgl xritag tag array accordingly.
6444  *
6445  **/
6446 static void
6447 lpfc_init_sgl_list(struct lpfc_hba *phba)
6448 {
6449         /* Initialize and populate the sglq list per host/VF. */
6450         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6451         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6452         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6453         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6454
6455         /* els xri-sgl book keeping */
6456         phba->sli4_hba.els_xri_cnt = 0;
6457
6458         /* scsi xri-buffer book keeping */
6459         phba->sli4_hba.scsi_xri_cnt = 0;
6460
6461         /* nvme xri-buffer book keeping */
6462         phba->sli4_hba.nvme_xri_cnt = 0;
6463 }
6464
6465 /**
6466  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6467  * @phba: pointer to lpfc hba data structure.
6468  *
6469  * This routine is invoked to post rpi header templates to the
6470  * port for those SLI4 ports that do not support extents.  This routine
6471  * posts a PAGE_SIZE memory region to the port to hold up to
6472  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
6473  * and should be called only when interrupts are disabled.
6474  *
6475  * Return codes
6476  *      0 - successful
6477  *      -ERROR - otherwise.
6478  **/
6479 int
6480 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6481 {
6482         int rc = 0;
6483         struct lpfc_rpi_hdr *rpi_hdr;
6484
6485         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6486         if (!phba->sli4_hba.rpi_hdrs_in_use)
6487                 return rc;
6488         if (phba->sli4_hba.extents_in_use)
6489                 return -EIO;
6490
6491         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6492         if (!rpi_hdr) {
6493                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6494                                 "0391 Error during rpi post operation\n");
6495                 lpfc_sli4_remove_rpis(phba);
6496                 rc = -ENODEV;
6497         }
6498
6499         return rc;
6500 }
6501
6502 /**
6503  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6504  * @phba: pointer to lpfc hba data structure.
6505  *
6506  * This routine is invoked to allocate a single 4KB memory region to
6507  * support rpis and stores them in the phba.  This single region
6508  * provides support for up to 64 rpis.  The region is used globally
6509  * by the device.
6510  *
6511  * Returns:
6512  *   A valid rpi hdr on success.
6513  *   A NULL pointer on any failure.
6514  **/
6515 struct lpfc_rpi_hdr *
6516 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6517 {
6518         uint16_t rpi_limit, curr_rpi_range;
6519         struct lpfc_dmabuf *dmabuf;
6520         struct lpfc_rpi_hdr *rpi_hdr;
6521         uint32_t rpi_count;
6522
6523         /*
6524          * If the SLI4 port supports extents, posting the rpi header isn't
6525          * required.  Set the expected maximum count and let the actual value
6526          * get set when extents are fully allocated.
6527          */
6528         if (!phba->sli4_hba.rpi_hdrs_in_use)
6529                 return NULL;
6530         if (phba->sli4_hba.extents_in_use)
6531                 return NULL;
6532
6533         /* The limit on the logical index is just the max_rpi count. */
6534         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6535         phba->sli4_hba.max_cfg_param.max_rpi - 1;
6536
6537         spin_lock_irq(&phba->hbalock);
6538         /*
6539          * Establish the starting RPI in this header block.  The starting
6540          * rpi is normalized to a zero base because the physical rpi is
6541          * port based.
6542          */
6543         curr_rpi_range = phba->sli4_hba.next_rpi;
6544         spin_unlock_irq(&phba->hbalock);
6545
6546         /*
6547          * The port has a limited number of rpis. The increment here
6548          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
6549          * and to allow the full max_rpi range per port.
6550          */
6551         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
6552                 rpi_count = rpi_limit - curr_rpi_range;
6553         else
6554                 rpi_count = LPFC_RPI_HDR_COUNT;
6555
6556         if (!rpi_count)
6557                 return NULL;
6558         /*
6559          * First allocate the protocol header region for the port.  The
6560          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6561          */
6562         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6563         if (!dmabuf)
6564                 return NULL;
6565
6566         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6567                                            LPFC_HDR_TEMPLATE_SIZE,
6568                                            &dmabuf->phys, GFP_KERNEL);
6569         if (!dmabuf->virt) {
6570                 rpi_hdr = NULL;
6571                 goto err_free_dmabuf;
6572         }
6573
6574         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6575                 rpi_hdr = NULL;
6576                 goto err_free_coherent;
6577         }
6578
6579         /* Save the rpi header data for cleanup later. */
6580         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6581         if (!rpi_hdr)
6582                 goto err_free_coherent;
6583
6584         rpi_hdr->dmabuf = dmabuf;
6585         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6586         rpi_hdr->page_count = 1;
6587         spin_lock_irq(&phba->hbalock);
6588
6589         /* The rpi_hdr stores the logical index only. */
6590         rpi_hdr->start_rpi = curr_rpi_range;
6591         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6592
6593         /*
6594          * The next_rpi stores the next logical module-64 rpi value used
6595          * to post physical rpis in subsequent rpi postings.
6596          */
6597         phba->sli4_hba.next_rpi += rpi_count;
6598         spin_unlock_irq(&phba->hbalock);
6599         return rpi_hdr;
6600
6601  err_free_coherent:
6602         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6603                           dmabuf->virt, dmabuf->phys);
6604  err_free_dmabuf:
6605         kfree(dmabuf);
6606         return NULL;
6607 }
6608
6609 /**
6610  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6611  * @phba: pointer to lpfc hba data structure.
6612  *
6613  * This routine is invoked to remove all memory resources allocated
6614  * to support rpis for SLI4 ports not supporting extents. This routine
6615  * presumes the caller has released all rpis consumed by fabric or port
6616  * logins and is prepared to have the header pages removed.
6617  **/
6618 void
6619 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6620 {
6621         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6622
6623         if (!phba->sli4_hba.rpi_hdrs_in_use)
6624                 goto exit;
6625
6626         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6627                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6628                 list_del(&rpi_hdr->list);
6629                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6630                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6631                 kfree(rpi_hdr->dmabuf);
6632                 kfree(rpi_hdr);
6633         }
6634  exit:
6635         /* There are no rpis available to the port now. */
6636         phba->sli4_hba.next_rpi = 0;
6637 }
6638
6639 /**
6640  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6641  * @pdev: pointer to pci device data structure.
6642  *
6643  * This routine is invoked to allocate the driver hba data structure for an
6644  * HBA device. If the allocation is successful, the phba reference to the
6645  * PCI device data structure is set.
6646  *
6647  * Return codes
6648  *      pointer to @phba - successful
6649  *      NULL - error
6650  **/
6651 static struct lpfc_hba *
6652 lpfc_hba_alloc(struct pci_dev *pdev)
6653 {
6654         struct lpfc_hba *phba;
6655
6656         /* Allocate memory for HBA structure */
6657         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6658         if (!phba) {
6659                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6660                 return NULL;
6661         }
6662
6663         /* Set reference to PCI device in HBA structure */
6664         phba->pcidev = pdev;
6665
6666         /* Assign an unused board number */
6667         phba->brd_no = lpfc_get_instance();
6668         if (phba->brd_no < 0) {
6669                 kfree(phba);
6670                 return NULL;
6671         }
6672         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6673
6674         spin_lock_init(&phba->ct_ev_lock);
6675         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6676
6677         return phba;
6678 }
6679
6680 /**
6681  * lpfc_hba_free - Free driver hba data structure with a device.
6682  * @phba: pointer to lpfc hba data structure.
6683  *
6684  * This routine is invoked to free the driver hba data structure with an
6685  * HBA device.
6686  **/
6687 static void
6688 lpfc_hba_free(struct lpfc_hba *phba)
6689 {
6690         /* Release the driver assigned board number */
6691         idr_remove(&lpfc_hba_index, phba->brd_no);
6692
6693         /* Free memory allocated with sli3 rings */
6694         kfree(phba->sli.sli3_ring);
6695         phba->sli.sli3_ring = NULL;
6696
6697         kfree(phba);
6698         return;
6699 }
6700
6701 /**
6702  * lpfc_create_shost - Create hba physical port with associated scsi host.
6703  * @phba: pointer to lpfc hba data structure.
6704  *
6705  * This routine is invoked to create HBA physical port and associate a SCSI
6706  * host with it.
6707  *
6708  * Return codes
6709  *      0 - successful
6710  *      other values - error
6711  **/
6712 static int
6713 lpfc_create_shost(struct lpfc_hba *phba)
6714 {
6715         struct lpfc_vport *vport;
6716         struct Scsi_Host  *shost;
6717
6718         /* Initialize HBA FC structure */
6719         phba->fc_edtov = FF_DEF_EDTOV;
6720         phba->fc_ratov = FF_DEF_RATOV;
6721         phba->fc_altov = FF_DEF_ALTOV;
6722         phba->fc_arbtov = FF_DEF_ARBTOV;
6723
6724         atomic_set(&phba->sdev_cnt, 0);
6725         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6726         if (!vport)
6727                 return -ENODEV;
6728
6729         shost = lpfc_shost_from_vport(vport);
6730         phba->pport = vport;
6731
6732         if (phba->nvmet_support) {
6733                 /* Only 1 vport (pport) will support NVME target */
6734                 if (phba->txrdy_payload_pool == NULL) {
6735                         phba->txrdy_payload_pool = pci_pool_create(
6736                                 "txrdy_pool", phba->pcidev,
6737                                 TXRDY_PAYLOAD_LEN, 16, 0);
6738                         if (phba->txrdy_payload_pool) {
6739                                 phba->targetport = NULL;
6740                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
6741                                 lpfc_printf_log(phba, KERN_INFO,
6742                                                 LOG_INIT | LOG_NVME_DISC,
6743                                                 "6076 NVME Target Found\n");
6744                         }
6745                 }
6746         }
6747
6748         lpfc_debugfs_initialize(vport);
6749         /* Put reference to SCSI host to driver's device private data */
6750         pci_set_drvdata(phba->pcidev, shost);
6751
6752         /*
6753          * At this point we are fully registered with PSA. In addition,
6754          * any initial discovery should be completed.
6755          */
6756         vport->load_flag |= FC_ALLOW_FDMI;
6757         if (phba->cfg_enable_SmartSAN ||
6758             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6759
6760                 /* Setup appropriate attribute masks */
6761                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6762                 if (phba->cfg_enable_SmartSAN)
6763                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6764                 else
6765                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6766         }
6767         return 0;
6768 }
6769
6770 /**
6771  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6772  * @phba: pointer to lpfc hba data structure.
6773  *
6774  * This routine is invoked to destroy HBA physical port and the associated
6775  * SCSI host.
6776  **/
6777 static void
6778 lpfc_destroy_shost(struct lpfc_hba *phba)
6779 {
6780         struct lpfc_vport *vport = phba->pport;
6781
6782         /* Destroy physical port that associated with the SCSI host */
6783         destroy_port(vport);
6784
6785         return;
6786 }
6787
6788 /**
6789  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6790  * @phba: pointer to lpfc hba data structure.
6791  * @shost: the shost to be used to detect Block guard settings.
6792  *
6793  * This routine sets up the local Block guard protocol settings for @shost.
6794  * This routine also allocates memory for debugging bg buffers.
6795  **/
6796 static void
6797 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6798 {
6799         uint32_t old_mask;
6800         uint32_t old_guard;
6801
6802         int pagecnt = 10;
6803         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6804                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6805                                 "1478 Registering BlockGuard with the "
6806                                 "SCSI layer\n");
6807
6808                 old_mask = phba->cfg_prot_mask;
6809                 old_guard = phba->cfg_prot_guard;
6810
6811                 /* Only allow supported values */
6812                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6813                         SHOST_DIX_TYPE0_PROTECTION |
6814                         SHOST_DIX_TYPE1_PROTECTION);
6815                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
6816                                          SHOST_DIX_GUARD_CRC);
6817
6818                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6819                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6820                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6821
6822                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6823                         if ((old_mask != phba->cfg_prot_mask) ||
6824                                 (old_guard != phba->cfg_prot_guard))
6825                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6826                                         "1475 Registering BlockGuard with the "
6827                                         "SCSI layer: mask %d  guard %d\n",
6828                                         phba->cfg_prot_mask,
6829                                         phba->cfg_prot_guard);
6830
6831                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
6832                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
6833                 } else
6834                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6835                                 "1479 Not Registering BlockGuard with the SCSI "
6836                                 "layer, Bad protection parameters: %d %d\n",
6837                                 old_mask, old_guard);
6838         }
6839
6840         if (!_dump_buf_data) {
6841                 while (pagecnt) {
6842                         spin_lock_init(&_dump_buf_lock);
6843                         _dump_buf_data =
6844                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6845                         if (_dump_buf_data) {
6846                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6847                                         "9043 BLKGRD: allocated %d pages for "
6848                                        "_dump_buf_data at 0x%p\n",
6849                                        (1 << pagecnt), _dump_buf_data);
6850                                 _dump_buf_data_order = pagecnt;
6851                                 memset(_dump_buf_data, 0,
6852                                        ((1 << PAGE_SHIFT) << pagecnt));
6853                                 break;
6854                         } else
6855                                 --pagecnt;
6856                 }
6857                 if (!_dump_buf_data_order)
6858                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6859                                 "9044 BLKGRD: ERROR unable to allocate "
6860                                "memory for hexdump\n");
6861         } else
6862                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6863                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6864                        "\n", _dump_buf_data);
6865         if (!_dump_buf_dif) {
6866                 while (pagecnt) {
6867                         _dump_buf_dif =
6868                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6869                         if (_dump_buf_dif) {
6870                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6871                                         "9046 BLKGRD: allocated %d pages for "
6872                                        "_dump_buf_dif at 0x%p\n",
6873                                        (1 << pagecnt), _dump_buf_dif);
6874                                 _dump_buf_dif_order = pagecnt;
6875                                 memset(_dump_buf_dif, 0,
6876                                        ((1 << PAGE_SHIFT) << pagecnt));
6877                                 break;
6878                         } else
6879                                 --pagecnt;
6880                 }
6881                 if (!_dump_buf_dif_order)
6882                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6883                         "9047 BLKGRD: ERROR unable to allocate "
6884                                "memory for hexdump\n");
6885         } else
6886                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6887                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6888                        _dump_buf_dif);
6889 }
6890
6891 /**
6892  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6893  * @phba: pointer to lpfc hba data structure.
6894  *
6895  * This routine is invoked to perform all the necessary post initialization
6896  * setup for the device.
6897  **/
6898 static void
6899 lpfc_post_init_setup(struct lpfc_hba *phba)
6900 {
6901         struct Scsi_Host  *shost;
6902         struct lpfc_adapter_event_header adapter_event;
6903
6904         /* Get the default values for Model Name and Description */
6905         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6906
6907         /*
6908          * hba setup may have changed the hba_queue_depth so we need to
6909          * adjust the value of can_queue.
6910          */
6911         shost = pci_get_drvdata(phba->pcidev);
6912         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6913         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6914                 lpfc_setup_bg(phba, shost);
6915
6916         lpfc_host_attrib_init(shost);
6917
6918         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6919                 spin_lock_irq(shost->host_lock);
6920                 lpfc_poll_start_timer(phba);
6921                 spin_unlock_irq(shost->host_lock);
6922         }
6923
6924         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6925                         "0428 Perform SCSI scan\n");
6926         /* Send board arrival event to upper layer */
6927         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6928         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6929         fc_host_post_vendor_event(shost, fc_get_event_number(),
6930                                   sizeof(adapter_event),
6931                                   (char *) &adapter_event,
6932                                   LPFC_NL_VENDOR_ID);
6933         return;
6934 }
6935
6936 /**
6937  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6938  * @phba: pointer to lpfc hba data structure.
6939  *
6940  * This routine is invoked to set up the PCI device memory space for device
6941  * with SLI-3 interface spec.
6942  *
6943  * Return codes
6944  *      0 - successful
6945  *      other values - error
6946  **/
6947 static int
6948 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6949 {
6950         struct pci_dev *pdev;
6951         unsigned long bar0map_len, bar2map_len;
6952         int i, hbq_count;
6953         void *ptr;
6954         int error = -ENODEV;
6955
6956         /* Obtain PCI device reference */
6957         if (!phba->pcidev)
6958                 return error;
6959         else
6960                 pdev = phba->pcidev;
6961
6962         /* Set the device DMA mask size */
6963         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6964          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6965                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6966                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6967                         return error;
6968                 }
6969         }
6970
6971         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6972          * required by each mapping.
6973          */
6974         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6975         bar0map_len = pci_resource_len(pdev, 0);
6976
6977         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6978         bar2map_len = pci_resource_len(pdev, 2);
6979
6980         /* Map HBA SLIM to a kernel virtual address. */
6981         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6982         if (!phba->slim_memmap_p) {
6983                 dev_printk(KERN_ERR, &pdev->dev,
6984                            "ioremap failed for SLIM memory.\n");
6985                 goto out;
6986         }
6987
6988         /* Map HBA Control Registers to a kernel virtual address. */
6989         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6990         if (!phba->ctrl_regs_memmap_p) {
6991                 dev_printk(KERN_ERR, &pdev->dev,
6992                            "ioremap failed for HBA control registers.\n");
6993                 goto out_iounmap_slim;
6994         }
6995
6996         /* Allocate memory for SLI-2 structures */
6997         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6998                                                 &phba->slim2p.phys, GFP_KERNEL);
6999         if (!phba->slim2p.virt)
7000                 goto out_iounmap;
7001
7002         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7003         phba->mbox_ext = (phba->slim2p.virt +
7004                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7005         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7006         phba->IOCBs = (phba->slim2p.virt +
7007                        offsetof(struct lpfc_sli2_slim, IOCBs));
7008
7009         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7010                                                  lpfc_sli_hbq_size(),
7011                                                  &phba->hbqslimp.phys,
7012                                                  GFP_KERNEL);
7013         if (!phba->hbqslimp.virt)
7014                 goto out_free_slim;
7015
7016         hbq_count = lpfc_sli_hbq_count();
7017         ptr = phba->hbqslimp.virt;
7018         for (i = 0; i < hbq_count; ++i) {
7019                 phba->hbqs[i].hbq_virt = ptr;
7020                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7021                 ptr += (lpfc_hbq_defs[i]->entry_count *
7022                         sizeof(struct lpfc_hbq_entry));
7023         }
7024         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7025         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7026
7027         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7028
7029         phba->MBslimaddr = phba->slim_memmap_p;
7030         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7031         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7032         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7033         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7034
7035         return 0;
7036
7037 out_free_slim:
7038         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7039                           phba->slim2p.virt, phba->slim2p.phys);
7040 out_iounmap:
7041         iounmap(phba->ctrl_regs_memmap_p);
7042 out_iounmap_slim:
7043         iounmap(phba->slim_memmap_p);
7044 out:
7045         return error;
7046 }
7047
7048 /**
7049  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7050  * @phba: pointer to lpfc hba data structure.
7051  *
7052  * This routine is invoked to unset the PCI device memory space for device
7053  * with SLI-3 interface spec.
7054  **/
7055 static void
7056 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7057 {
7058         struct pci_dev *pdev;
7059
7060         /* Obtain PCI device reference */
7061         if (!phba->pcidev)
7062                 return;
7063         else
7064                 pdev = phba->pcidev;
7065
7066         /* Free coherent DMA memory allocated */
7067         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7068                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7069         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7070                           phba->slim2p.virt, phba->slim2p.phys);
7071
7072         /* I/O memory unmap */
7073         iounmap(phba->ctrl_regs_memmap_p);
7074         iounmap(phba->slim_memmap_p);
7075
7076         return;
7077 }
7078
7079 /**
7080  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7081  * @phba: pointer to lpfc hba data structure.
7082  *
7083  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7084  * done and check status.
7085  *
7086  * Return 0 if successful, otherwise -ENODEV.
7087  **/
7088 int
7089 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7090 {
7091         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7092         struct lpfc_register reg_data;
7093         int i, port_error = 0;
7094         uint32_t if_type;
7095
7096         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7097         memset(&reg_data, 0, sizeof(reg_data));
7098         if (!phba->sli4_hba.PSMPHRregaddr)
7099                 return -ENODEV;
7100
7101         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7102         for (i = 0; i < 3000; i++) {
7103                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7104                         &portsmphr_reg.word0) ||
7105                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7106                         /* Port has a fatal POST error, break out */
7107                         port_error = -ENODEV;
7108                         break;
7109                 }
7110                 if (LPFC_POST_STAGE_PORT_READY ==
7111                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7112                         break;
7113                 msleep(10);
7114         }
7115
7116         /*
7117          * If there was a port error during POST, then don't proceed with
7118          * other register reads as the data may not be valid.  Just exit.
7119          */
7120         if (port_error) {
7121                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7122                         "1408 Port Failed POST - portsmphr=0x%x, "
7123                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7124                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7125                         portsmphr_reg.word0,
7126                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7127                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7128                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7129                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7130                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7131                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7132                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7133                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7134         } else {
7135                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7136                                 "2534 Device Info: SLIFamily=0x%x, "
7137                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7138                                 "SLIHint_2=0x%x, FT=0x%x\n",
7139                                 bf_get(lpfc_sli_intf_sli_family,
7140                                        &phba->sli4_hba.sli_intf),
7141                                 bf_get(lpfc_sli_intf_slirev,
7142                                        &phba->sli4_hba.sli_intf),
7143                                 bf_get(lpfc_sli_intf_if_type,
7144                                        &phba->sli4_hba.sli_intf),
7145                                 bf_get(lpfc_sli_intf_sli_hint1,
7146                                        &phba->sli4_hba.sli_intf),
7147                                 bf_get(lpfc_sli_intf_sli_hint2,
7148                                        &phba->sli4_hba.sli_intf),
7149                                 bf_get(lpfc_sli_intf_func_type,
7150                                        &phba->sli4_hba.sli_intf));
7151                 /*
7152                  * Check for other Port errors during the initialization
7153                  * process.  Fail the load if the port did not come up
7154                  * correctly.
7155                  */
7156                 if_type = bf_get(lpfc_sli_intf_if_type,
7157                                  &phba->sli4_hba.sli_intf);
7158                 switch (if_type) {
7159                 case LPFC_SLI_INTF_IF_TYPE_0:
7160                         phba->sli4_hba.ue_mask_lo =
7161                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7162                         phba->sli4_hba.ue_mask_hi =
7163                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7164                         uerrlo_reg.word0 =
7165                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7166                         uerrhi_reg.word0 =
7167                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7168                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7169                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7170                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7171                                                 "1422 Unrecoverable Error "
7172                                                 "Detected during POST "
7173                                                 "uerr_lo_reg=0x%x, "
7174                                                 "uerr_hi_reg=0x%x, "
7175                                                 "ue_mask_lo_reg=0x%x, "
7176                                                 "ue_mask_hi_reg=0x%x\n",
7177                                                 uerrlo_reg.word0,
7178                                                 uerrhi_reg.word0,
7179                                                 phba->sli4_hba.ue_mask_lo,
7180                                                 phba->sli4_hba.ue_mask_hi);
7181                                 port_error = -ENODEV;
7182                         }
7183                         break;
7184                 case LPFC_SLI_INTF_IF_TYPE_2:
7185                         /* Final checks.  The port status should be clean. */
7186                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7187                                 &reg_data.word0) ||
7188                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7189                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7190                                 phba->work_status[0] =
7191                                         readl(phba->sli4_hba.u.if_type2.
7192                                               ERR1regaddr);
7193                                 phba->work_status[1] =
7194                                         readl(phba->sli4_hba.u.if_type2.
7195                                               ERR2regaddr);
7196                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7197                                         "2888 Unrecoverable port error "
7198                                         "following POST: port status reg "
7199                                         "0x%x, port_smphr reg 0x%x, "
7200                                         "error 1=0x%x, error 2=0x%x\n",
7201                                         reg_data.word0,
7202                                         portsmphr_reg.word0,
7203                                         phba->work_status[0],
7204                                         phba->work_status[1]);
7205                                 port_error = -ENODEV;
7206                         }
7207                         break;
7208                 case LPFC_SLI_INTF_IF_TYPE_1:
7209                 default:
7210                         break;
7211                 }
7212         }
7213         return port_error;
7214 }
7215
7216 /**
7217  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7218  * @phba: pointer to lpfc hba data structure.
7219  * @if_type:  The SLI4 interface type getting configured.
7220  *
7221  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7222  * memory map.
7223  **/
7224 static void
7225 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7226 {
7227         switch (if_type) {
7228         case LPFC_SLI_INTF_IF_TYPE_0:
7229                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7230                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7231                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7232                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7233                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7234                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7235                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7236                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7237                 phba->sli4_hba.SLIINTFregaddr =
7238                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7239                 break;
7240         case LPFC_SLI_INTF_IF_TYPE_2:
7241                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7242                         phba->sli4_hba.conf_regs_memmap_p +
7243                                                 LPFC_CTL_PORT_ER1_OFFSET;
7244                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7245                         phba->sli4_hba.conf_regs_memmap_p +
7246                                                 LPFC_CTL_PORT_ER2_OFFSET;
7247                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7248                         phba->sli4_hba.conf_regs_memmap_p +
7249                                                 LPFC_CTL_PORT_CTL_OFFSET;
7250                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7251                         phba->sli4_hba.conf_regs_memmap_p +
7252                                                 LPFC_CTL_PORT_STA_OFFSET;
7253                 phba->sli4_hba.SLIINTFregaddr =
7254                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7255                 phba->sli4_hba.PSMPHRregaddr =
7256                         phba->sli4_hba.conf_regs_memmap_p +
7257                                                 LPFC_CTL_PORT_SEM_OFFSET;
7258                 phba->sli4_hba.RQDBregaddr =
7259                         phba->sli4_hba.conf_regs_memmap_p +
7260                                                 LPFC_ULP0_RQ_DOORBELL;
7261                 phba->sli4_hba.WQDBregaddr =
7262                         phba->sli4_hba.conf_regs_memmap_p +
7263                                                 LPFC_ULP0_WQ_DOORBELL;
7264                 phba->sli4_hba.EQCQDBregaddr =
7265                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7266                 phba->sli4_hba.MQDBregaddr =
7267                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7268                 phba->sli4_hba.BMBXregaddr =
7269                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7270                 break;
7271         case LPFC_SLI_INTF_IF_TYPE_1:
7272         default:
7273                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7274                            "FATAL - unsupported SLI4 interface type - %d\n",
7275                            if_type);
7276                 break;
7277         }
7278 }
7279
7280 /**
7281  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7282  * @phba: pointer to lpfc hba data structure.
7283  *
7284  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
7285  * memory map.
7286  **/
7287 static void
7288 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
7289 {
7290         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7291                 LPFC_SLIPORT_IF0_SMPHR;
7292         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7293                 LPFC_HST_ISR0;
7294         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7295                 LPFC_HST_IMR0;
7296         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7297                 LPFC_HST_ISCR0;
7298 }
7299
7300 /**
7301  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7302  * @phba: pointer to lpfc hba data structure.
7303  * @vf: virtual function number
7304  *
7305  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7306  * based on the given viftual function number, @vf.
7307  *
7308  * Return 0 if successful, otherwise -ENODEV.
7309  **/
7310 static int
7311 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7312 {
7313         if (vf > LPFC_VIR_FUNC_MAX)
7314                 return -ENODEV;
7315
7316         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7317                                 vf * LPFC_VFR_PAGE_SIZE +
7318                                         LPFC_ULP0_RQ_DOORBELL);
7319         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7320                                 vf * LPFC_VFR_PAGE_SIZE +
7321                                         LPFC_ULP0_WQ_DOORBELL);
7322         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7323                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
7324         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7325                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7326         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7327                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7328         return 0;
7329 }
7330
7331 /**
7332  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7333  * @phba: pointer to lpfc hba data structure.
7334  *
7335  * This routine is invoked to create the bootstrap mailbox
7336  * region consistent with the SLI-4 interface spec.  This
7337  * routine allocates all memory necessary to communicate
7338  * mailbox commands to the port and sets up all alignment
7339  * needs.  No locks are expected to be held when calling
7340  * this routine.
7341  *
7342  * Return codes
7343  *      0 - successful
7344  *      -ENOMEM - could not allocated memory.
7345  **/
7346 static int
7347 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7348 {
7349         uint32_t bmbx_size;
7350         struct lpfc_dmabuf *dmabuf;
7351         struct dma_address *dma_address;
7352         uint32_t pa_addr;
7353         uint64_t phys_addr;
7354
7355         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7356         if (!dmabuf)
7357                 return -ENOMEM;
7358
7359         /*
7360          * The bootstrap mailbox region is comprised of 2 parts
7361          * plus an alignment restriction of 16 bytes.
7362          */
7363         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7364         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
7365                                            &dmabuf->phys, GFP_KERNEL);
7366         if (!dmabuf->virt) {
7367                 kfree(dmabuf);
7368                 return -ENOMEM;
7369         }
7370
7371         /*
7372          * Initialize the bootstrap mailbox pointers now so that the register
7373          * operations are simple later.  The mailbox dma address is required
7374          * to be 16-byte aligned.  Also align the virtual memory as each
7375          * maibox is copied into the bmbx mailbox region before issuing the
7376          * command to the port.
7377          */
7378         phba->sli4_hba.bmbx.dmabuf = dmabuf;
7379         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7380
7381         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7382                                               LPFC_ALIGN_16_BYTE);
7383         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7384                                               LPFC_ALIGN_16_BYTE);
7385
7386         /*
7387          * Set the high and low physical addresses now.  The SLI4 alignment
7388          * requirement is 16 bytes and the mailbox is posted to the port
7389          * as two 30-bit addresses.  The other data is a bit marking whether
7390          * the 30-bit address is the high or low address.
7391          * Upcast bmbx aphys to 64bits so shift instruction compiles
7392          * clean on 32 bit machines.
7393          */
7394         dma_address = &phba->sli4_hba.bmbx.dma_address;
7395         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7396         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7397         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7398                                            LPFC_BMBX_BIT1_ADDR_HI);
7399
7400         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7401         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7402                                            LPFC_BMBX_BIT1_ADDR_LO);
7403         return 0;
7404 }
7405
7406 /**
7407  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7408  * @phba: pointer to lpfc hba data structure.
7409  *
7410  * This routine is invoked to teardown the bootstrap mailbox
7411  * region and release all host resources. This routine requires
7412  * the caller to ensure all mailbox commands recovered, no
7413  * additional mailbox comands are sent, and interrupts are disabled
7414  * before calling this routine.
7415  *
7416  **/
7417 static void
7418 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7419 {
7420         dma_free_coherent(&phba->pcidev->dev,
7421                           phba->sli4_hba.bmbx.bmbx_size,
7422                           phba->sli4_hba.bmbx.dmabuf->virt,
7423                           phba->sli4_hba.bmbx.dmabuf->phys);
7424
7425         kfree(phba->sli4_hba.bmbx.dmabuf);
7426         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7427 }
7428
7429 /**
7430  * lpfc_sli4_read_config - Get the config parameters.
7431  * @phba: pointer to lpfc hba data structure.
7432  *
7433  * This routine is invoked to read the configuration parameters from the HBA.
7434  * The configuration parameters are used to set the base and maximum values
7435  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7436  * allocation for the port.
7437  *
7438  * Return codes
7439  *      0 - successful
7440  *      -ENOMEM - No available memory
7441  *      -EIO - The mailbox failed to complete successfully.
7442  **/
7443 int
7444 lpfc_sli4_read_config(struct lpfc_hba *phba)
7445 {
7446         LPFC_MBOXQ_t *pmb;
7447         struct lpfc_mbx_read_config *rd_config;
7448         union  lpfc_sli4_cfg_shdr *shdr;
7449         uint32_t shdr_status, shdr_add_status;
7450         struct lpfc_mbx_get_func_cfg *get_func_cfg;
7451         struct lpfc_rsrc_desc_fcfcoe *desc;
7452         char *pdesc_0;
7453         uint16_t forced_link_speed;
7454         uint32_t if_type;
7455         int length, i, rc = 0, rc2;
7456
7457         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7458         if (!pmb) {
7459                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7460                                 "2011 Unable to allocate memory for issuing "
7461                                 "SLI_CONFIG_SPECIAL mailbox command\n");
7462                 return -ENOMEM;
7463         }
7464
7465         lpfc_read_config(phba, pmb);
7466
7467         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7468         if (rc != MBX_SUCCESS) {
7469                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7470                         "2012 Mailbox failed , mbxCmd x%x "
7471                         "READ_CONFIG, mbxStatus x%x\n",
7472                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
7473                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
7474                 rc = -EIO;
7475         } else {
7476                 rd_config = &pmb->u.mqe.un.rd_config;
7477                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7478                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7479                         phba->sli4_hba.lnk_info.lnk_tp =
7480                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7481                         phba->sli4_hba.lnk_info.lnk_no =
7482                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7483                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7484                                         "3081 lnk_type:%d, lnk_numb:%d\n",
7485                                         phba->sli4_hba.lnk_info.lnk_tp,
7486                                         phba->sli4_hba.lnk_info.lnk_no);
7487                 } else
7488                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7489                                         "3082 Mailbox (x%x) returned ldv:x0\n",
7490                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
7491                 phba->sli4_hba.extents_in_use =
7492                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7493                 phba->sli4_hba.max_cfg_param.max_xri =
7494                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7495                 phba->sli4_hba.max_cfg_param.xri_base =
7496                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7497                 phba->sli4_hba.max_cfg_param.max_vpi =
7498                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7499                 phba->sli4_hba.max_cfg_param.vpi_base =
7500                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7501                 phba->sli4_hba.max_cfg_param.max_rpi =
7502                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7503                 phba->sli4_hba.max_cfg_param.rpi_base =
7504                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7505                 phba->sli4_hba.max_cfg_param.max_vfi =
7506                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7507                 phba->sli4_hba.max_cfg_param.vfi_base =
7508                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7509                 phba->sli4_hba.max_cfg_param.max_fcfi =
7510                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7511                 phba->sli4_hba.max_cfg_param.max_eq =
7512                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7513                 phba->sli4_hba.max_cfg_param.max_rq =
7514                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7515                 phba->sli4_hba.max_cfg_param.max_wq =
7516                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7517                 phba->sli4_hba.max_cfg_param.max_cq =
7518                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7519                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7520                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7521                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7522                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7523                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7524                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7525                 phba->max_vports = phba->max_vpi;
7526                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7527                                 "2003 cfg params Extents? %d "
7528                                 "XRI(B:%d M:%d), "
7529                                 "VPI(B:%d M:%d) "
7530                                 "VFI(B:%d M:%d) "
7531                                 "RPI(B:%d M:%d) "
7532                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7533                                 phba->sli4_hba.extents_in_use,
7534                                 phba->sli4_hba.max_cfg_param.xri_base,
7535                                 phba->sli4_hba.max_cfg_param.max_xri,
7536                                 phba->sli4_hba.max_cfg_param.vpi_base,
7537                                 phba->sli4_hba.max_cfg_param.max_vpi,
7538                                 phba->sli4_hba.max_cfg_param.vfi_base,
7539                                 phba->sli4_hba.max_cfg_param.max_vfi,
7540                                 phba->sli4_hba.max_cfg_param.rpi_base,
7541                                 phba->sli4_hba.max_cfg_param.max_rpi,
7542                                 phba->sli4_hba.max_cfg_param.max_fcfi,
7543                                 phba->sli4_hba.max_cfg_param.max_eq,
7544                                 phba->sli4_hba.max_cfg_param.max_cq,
7545                                 phba->sli4_hba.max_cfg_param.max_wq,
7546                                 phba->sli4_hba.max_cfg_param.max_rq);
7547
7548         }
7549
7550         if (rc)
7551                 goto read_cfg_out;
7552
7553         /* Update link speed if forced link speed is supported */
7554         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7555         if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7556                 forced_link_speed =
7557                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
7558                 if (forced_link_speed) {
7559                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
7560
7561                         switch (forced_link_speed) {
7562                         case LINK_SPEED_1G:
7563                                 phba->cfg_link_speed =
7564                                         LPFC_USER_LINK_SPEED_1G;
7565                                 break;
7566                         case LINK_SPEED_2G:
7567                                 phba->cfg_link_speed =
7568                                         LPFC_USER_LINK_SPEED_2G;
7569                                 break;
7570                         case LINK_SPEED_4G:
7571                                 phba->cfg_link_speed =
7572                                         LPFC_USER_LINK_SPEED_4G;
7573                                 break;
7574                         case LINK_SPEED_8G:
7575                                 phba->cfg_link_speed =
7576                                         LPFC_USER_LINK_SPEED_8G;
7577                                 break;
7578                         case LINK_SPEED_10G:
7579                                 phba->cfg_link_speed =
7580                                         LPFC_USER_LINK_SPEED_10G;
7581                                 break;
7582                         case LINK_SPEED_16G:
7583                                 phba->cfg_link_speed =
7584                                         LPFC_USER_LINK_SPEED_16G;
7585                                 break;
7586                         case LINK_SPEED_32G:
7587                                 phba->cfg_link_speed =
7588                                         LPFC_USER_LINK_SPEED_32G;
7589                                 break;
7590                         case 0xffff:
7591                                 phba->cfg_link_speed =
7592                                         LPFC_USER_LINK_SPEED_AUTO;
7593                                 break;
7594                         default:
7595                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7596                                                 "0047 Unrecognized link "
7597                                                 "speed : %d\n",
7598                                                 forced_link_speed);
7599                                 phba->cfg_link_speed =
7600                                         LPFC_USER_LINK_SPEED_AUTO;
7601                         }
7602                 }
7603         }
7604
7605         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
7606         length = phba->sli4_hba.max_cfg_param.max_xri -
7607                         lpfc_sli4_get_els_iocb_cnt(phba);
7608         if (phba->cfg_hba_queue_depth > length) {
7609                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7610                                 "3361 HBA queue depth changed from %d to %d\n",
7611                                 phba->cfg_hba_queue_depth, length);
7612                 phba->cfg_hba_queue_depth = length;
7613         }
7614
7615         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
7616             LPFC_SLI_INTF_IF_TYPE_2)
7617                 goto read_cfg_out;
7618
7619         /* get the pf# and vf# for SLI4 if_type 2 port */
7620         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7621                   sizeof(struct lpfc_sli4_cfg_mhdr));
7622         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7623                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7624                          length, LPFC_SLI4_MBX_EMBED);
7625
7626         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7627         shdr = (union lpfc_sli4_cfg_shdr *)
7628                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7629         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7630         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7631         if (rc2 || shdr_status || shdr_add_status) {
7632                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7633                                 "3026 Mailbox failed , mbxCmd x%x "
7634                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7635                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7636                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7637                 goto read_cfg_out;
7638         }
7639
7640         /* search for fc_fcoe resrouce descriptor */
7641         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7642
7643         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7644         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7645         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7646         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7647                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7648         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7649                 goto read_cfg_out;
7650
7651         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7652                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7653                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7654                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7655                         phba->sli4_hba.iov.pf_number =
7656                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7657                         phba->sli4_hba.iov.vf_number =
7658                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7659                         break;
7660                 }
7661         }
7662
7663         if (i < LPFC_RSRC_DESC_MAX_NUM)
7664                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7665                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7666                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7667                                 phba->sli4_hba.iov.vf_number);
7668         else
7669                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7670                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7671                                 "Resrouce Descriptor:x%x\n",
7672                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7673
7674 read_cfg_out:
7675         mempool_free(pmb, phba->mbox_mem_pool);
7676         return rc;
7677 }
7678
7679 /**
7680  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7681  * @phba: pointer to lpfc hba data structure.
7682  *
7683  * This routine is invoked to setup the port-side endian order when
7684  * the port if_type is 0.  This routine has no function for other
7685  * if_types.
7686  *
7687  * Return codes
7688  *      0 - successful
7689  *      -ENOMEM - No available memory
7690  *      -EIO - The mailbox failed to complete successfully.
7691  **/
7692 static int
7693 lpfc_setup_endian_order(struct lpfc_hba *phba)
7694 {
7695         LPFC_MBOXQ_t *mboxq;
7696         uint32_t if_type, rc = 0;
7697         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7698                                       HOST_ENDIAN_HIGH_WORD1};
7699
7700         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7701         switch (if_type) {
7702         case LPFC_SLI_INTF_IF_TYPE_0:
7703                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7704                                                        GFP_KERNEL);
7705                 if (!mboxq) {
7706                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7707                                         "0492 Unable to allocate memory for "
7708                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7709                                         "command\n");
7710                         return -ENOMEM;
7711                 }
7712
7713                 /*
7714                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7715                  * two words to contain special data values and no other data.
7716                  */
7717                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7718                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7719                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7720                 if (rc != MBX_SUCCESS) {
7721                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7722                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7723                                         "failed with status x%x\n",
7724                                         rc);
7725                         rc = -EIO;
7726                 }
7727                 mempool_free(mboxq, phba->mbox_mem_pool);
7728                 break;
7729         case LPFC_SLI_INTF_IF_TYPE_2:
7730         case LPFC_SLI_INTF_IF_TYPE_1:
7731         default:
7732                 break;
7733         }
7734         return rc;
7735 }
7736
7737 /**
7738  * lpfc_sli4_queue_verify - Verify and update EQ counts
7739  * @phba: pointer to lpfc hba data structure.
7740  *
7741  * This routine is invoked to check the user settable queue counts for EQs.
7742  * After this routine is called the counts will be set to valid values that
7743  * adhere to the constraints of the system's interrupt vectors and the port's
7744  * queue resources.
7745  *
7746  * Return codes
7747  *      0 - successful
7748  *      -ENOMEM - No available memory
7749  **/
7750 static int
7751 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7752 {
7753         int io_channel;
7754         int fof_vectors = phba->cfg_fof ? 1 : 0;
7755
7756         /*
7757          * Sanity check for configured queue parameters against the run-time
7758          * device parameters
7759          */
7760
7761         /* Sanity check on HBA EQ parameters */
7762         io_channel = phba->io_channel_irqs;
7763
7764         if (phba->sli4_hba.num_online_cpu < io_channel) {
7765                 lpfc_printf_log(phba,
7766                                 KERN_ERR, LOG_INIT,
7767                                 "3188 Reducing IO channels to match number of "
7768                                 "online CPUs: from %d to %d\n",
7769                                 io_channel, phba->sli4_hba.num_online_cpu);
7770                 io_channel = phba->sli4_hba.num_online_cpu;
7771         }
7772
7773         if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
7774                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7775                                 "2575 Reducing IO channels to match number of "
7776                                 "available EQs: from %d to %d\n",
7777                                 io_channel,
7778                                 phba->sli4_hba.max_cfg_param.max_eq);
7779                 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
7780         }
7781
7782         /* The actual number of FCP / NVME event queues adopted */
7783         if (io_channel != phba->io_channel_irqs)
7784                 phba->io_channel_irqs = io_channel;
7785         if (phba->cfg_fcp_io_channel > io_channel)
7786                 phba->cfg_fcp_io_channel = io_channel;
7787         if (phba->cfg_nvme_io_channel > io_channel)
7788                 phba->cfg_nvme_io_channel = io_channel;
7789         if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
7790                 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
7791
7792         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7793                         "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
7794                         phba->io_channel_irqs, phba->cfg_fcp_io_channel,
7795                         phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
7796
7797         /* Get EQ depth from module parameter, fake the default for now */
7798         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7799         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7800
7801         /* Get CQ depth from module parameter, fake the default for now */
7802         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7803         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7804         return 0;
7805 }
7806
7807 static int
7808 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
7809 {
7810         struct lpfc_queue *qdesc;
7811         int cnt;
7812
7813         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7814                                             phba->sli4_hba.cq_ecount);
7815         if (!qdesc) {
7816                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7817                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
7818                                 wqidx);
7819                 return 1;
7820         }
7821         phba->sli4_hba.nvme_cq[wqidx] = qdesc;
7822
7823         cnt = LPFC_NVME_WQSIZE;
7824         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt);
7825         if (!qdesc) {
7826                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7827                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
7828                                 wqidx);
7829                 return 1;
7830         }
7831         phba->sli4_hba.nvme_wq[wqidx] = qdesc;
7832         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
7833         return 0;
7834 }
7835
7836 static int
7837 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
7838 {
7839         struct lpfc_queue *qdesc;
7840         uint32_t wqesize;
7841
7842         /* Create Fast Path FCP CQs */
7843         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7844                                         phba->sli4_hba.cq_ecount);
7845         if (!qdesc) {
7846                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7847                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
7848                 return 1;
7849         }
7850         phba->sli4_hba.fcp_cq[wqidx] = qdesc;
7851
7852         /* Create Fast Path FCP WQs */
7853         wqesize = (phba->fcp_embed_io) ?
7854                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
7855         qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount);
7856         if (!qdesc) {
7857                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7858                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
7859                                 wqidx);
7860                 return 1;
7861         }
7862         phba->sli4_hba.fcp_wq[wqidx] = qdesc;
7863         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
7864         return 0;
7865 }
7866
7867 /**
7868  * lpfc_sli4_queue_create - Create all the SLI4 queues
7869  * @phba: pointer to lpfc hba data structure.
7870  *
7871  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7872  * operation. For each SLI4 queue type, the parameters such as queue entry
7873  * count (queue depth) shall be taken from the module parameter. For now,
7874  * we just use some constant number as place holder.
7875  *
7876  * Return codes
7877  *      0 - successful
7878  *      -ENOMEM - No availble memory
7879  *      -EIO - The mailbox failed to complete successfully.
7880  **/
7881 int
7882 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7883 {
7884         struct lpfc_queue *qdesc;
7885         int idx, io_channel;
7886
7887         /*
7888          * Create HBA Record arrays.
7889          * Both NVME and FCP will share that same vectors / EQs
7890          */
7891         io_channel = phba->io_channel_irqs;
7892         if (!io_channel)
7893                 return -ERANGE;
7894
7895         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7896         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7897         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7898         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7899         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7900         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7901         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7902         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7903         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7904         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7905
7906         phba->sli4_hba.hba_eq =  kcalloc(io_channel,
7907                                         sizeof(struct lpfc_queue *),
7908                                         GFP_KERNEL);
7909         if (!phba->sli4_hba.hba_eq) {
7910                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7911                         "2576 Failed allocate memory for "
7912                         "fast-path EQ record array\n");
7913                 goto out_error;
7914         }
7915
7916         if (phba->cfg_fcp_io_channel) {
7917                 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
7918                                                 sizeof(struct lpfc_queue *),
7919                                                 GFP_KERNEL);
7920                 if (!phba->sli4_hba.fcp_cq) {
7921                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7922                                         "2577 Failed allocate memory for "
7923                                         "fast-path CQ record array\n");
7924                         goto out_error;
7925                 }
7926                 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
7927                                                 sizeof(struct lpfc_queue *),
7928                                                 GFP_KERNEL);
7929                 if (!phba->sli4_hba.fcp_wq) {
7930                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7931                                         "2578 Failed allocate memory for "
7932                                         "fast-path FCP WQ record array\n");
7933                         goto out_error;
7934                 }
7935                 /*
7936                  * Since the first EQ can have multiple CQs associated with it,
7937                  * this array is used to quickly see if we have a FCP fast-path
7938                  * CQ match.
7939                  */
7940                 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
7941                                                         sizeof(uint16_t),
7942                                                         GFP_KERNEL);
7943                 if (!phba->sli4_hba.fcp_cq_map) {
7944                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7945                                         "2545 Failed allocate memory for "
7946                                         "fast-path CQ map\n");
7947                         goto out_error;
7948                 }
7949         }
7950
7951         if (phba->cfg_nvme_io_channel) {
7952                 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
7953                                                 sizeof(struct lpfc_queue *),
7954                                                 GFP_KERNEL);
7955                 if (!phba->sli4_hba.nvme_cq) {
7956                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7957                                         "6077 Failed allocate memory for "
7958                                         "fast-path CQ record array\n");
7959                         goto out_error;
7960                 }
7961
7962                 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
7963                                                 sizeof(struct lpfc_queue *),
7964                                                 GFP_KERNEL);
7965                 if (!phba->sli4_hba.nvme_wq) {
7966                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7967                                         "2581 Failed allocate memory for "
7968                                         "fast-path NVME WQ record array\n");
7969                         goto out_error;
7970                 }
7971
7972                 /*
7973                  * Since the first EQ can have multiple CQs associated with it,
7974                  * this array is used to quickly see if we have a NVME fast-path
7975                  * CQ match.
7976                  */
7977                 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
7978                                                         sizeof(uint16_t),
7979                                                         GFP_KERNEL);
7980                 if (!phba->sli4_hba.nvme_cq_map) {
7981                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7982                                         "6078 Failed allocate memory for "
7983                                         "fast-path CQ map\n");
7984                         goto out_error;
7985                 }
7986
7987                 if (phba->nvmet_support) {
7988                         phba->sli4_hba.nvmet_cqset = kcalloc(
7989                                         phba->cfg_nvmet_mrq,
7990                                         sizeof(struct lpfc_queue *),
7991                                         GFP_KERNEL);
7992                         if (!phba->sli4_hba.nvmet_cqset) {
7993                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7994                                         "3121 Fail allocate memory for "
7995                                         "fast-path CQ set array\n");
7996                                 goto out_error;
7997                         }
7998                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
7999                                         phba->cfg_nvmet_mrq,
8000                                         sizeof(struct lpfc_queue *),
8001                                         GFP_KERNEL);
8002                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8003                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8004                                         "3122 Fail allocate memory for "
8005                                         "fast-path RQ set hdr array\n");
8006                                 goto out_error;
8007                         }
8008                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8009                                         phba->cfg_nvmet_mrq,
8010                                         sizeof(struct lpfc_queue *),
8011                                         GFP_KERNEL);
8012                         if (!phba->sli4_hba.nvmet_mrq_data) {
8013                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8014                                         "3124 Fail allocate memory for "
8015                                         "fast-path RQ set data array\n");
8016                                 goto out_error;
8017                         }
8018                 }
8019         }
8020
8021         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8022
8023         /* Create HBA Event Queues (EQs) */
8024         for (idx = 0; idx < io_channel; idx++) {
8025                 /* Create EQs */
8026                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
8027                                               phba->sli4_hba.eq_ecount);
8028                 if (!qdesc) {
8029                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8030                                         "0497 Failed allocate EQ (%d)\n", idx);
8031                         goto out_error;
8032                 }
8033                 phba->sli4_hba.hba_eq[idx] = qdesc;
8034         }
8035
8036         /* FCP and NVME io channels are not required to be balanced */
8037
8038         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8039                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8040                         goto out_error;
8041
8042         for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8043                 if (lpfc_alloc_nvme_wq_cq(phba, idx))
8044                         goto out_error;
8045
8046         if (phba->nvmet_support) {
8047                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8048                         qdesc = lpfc_sli4_queue_alloc(phba,
8049                                         phba->sli4_hba.cq_esize,
8050                                         phba->sli4_hba.cq_ecount);
8051                         if (!qdesc) {
8052                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8053                                         "3142 Failed allocate NVME "
8054                                         "CQ Set (%d)\n", idx);
8055                                 goto out_error;
8056                         }
8057                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8058                 }
8059         }
8060
8061         /*
8062          * Create Slow Path Completion Queues (CQs)
8063          */
8064
8065         /* Create slow-path Mailbox Command Complete Queue */
8066         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8067                                       phba->sli4_hba.cq_ecount);
8068         if (!qdesc) {
8069                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8070                                 "0500 Failed allocate slow-path mailbox CQ\n");
8071                 goto out_error;
8072         }
8073         phba->sli4_hba.mbx_cq = qdesc;
8074
8075         /* Create slow-path ELS Complete Queue */
8076         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8077                                       phba->sli4_hba.cq_ecount);
8078         if (!qdesc) {
8079                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8080                                 "0501 Failed allocate slow-path ELS CQ\n");
8081                 goto out_error;
8082         }
8083         phba->sli4_hba.els_cq = qdesc;
8084
8085
8086         /*
8087          * Create Slow Path Work Queues (WQs)
8088          */
8089
8090         /* Create Mailbox Command Queue */
8091
8092         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
8093                                       phba->sli4_hba.mq_ecount);
8094         if (!qdesc) {
8095                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8096                                 "0505 Failed allocate slow-path MQ\n");
8097                 goto out_error;
8098         }
8099         phba->sli4_hba.mbx_wq = qdesc;
8100
8101         /*
8102          * Create ELS Work Queues
8103          */
8104
8105         /* Create slow-path ELS Work Queue */
8106         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8107                                       phba->sli4_hba.wq_ecount);
8108         if (!qdesc) {
8109                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8110                                 "0504 Failed allocate slow-path ELS WQ\n");
8111                 goto out_error;
8112         }
8113         phba->sli4_hba.els_wq = qdesc;
8114         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8115
8116         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8117                 /* Create NVME LS Complete Queue */
8118                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8119                                               phba->sli4_hba.cq_ecount);
8120                 if (!qdesc) {
8121                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8122                                         "6079 Failed allocate NVME LS CQ\n");
8123                         goto out_error;
8124                 }
8125                 phba->sli4_hba.nvmels_cq = qdesc;
8126
8127                 /* Create NVME LS Work Queue */
8128                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8129                                               phba->sli4_hba.wq_ecount);
8130                 if (!qdesc) {
8131                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8132                                         "6080 Failed allocate NVME LS WQ\n");
8133                         goto out_error;
8134                 }
8135                 phba->sli4_hba.nvmels_wq = qdesc;
8136                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8137         }
8138
8139         /*
8140          * Create Receive Queue (RQ)
8141          */
8142
8143         /* Create Receive Queue for header */
8144         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8145                                       phba->sli4_hba.rq_ecount);
8146         if (!qdesc) {
8147                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8148                                 "0506 Failed allocate receive HRQ\n");
8149                 goto out_error;
8150         }
8151         phba->sli4_hba.hdr_rq = qdesc;
8152
8153         /* Create Receive Queue for data */
8154         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8155                                       phba->sli4_hba.rq_ecount);
8156         if (!qdesc) {
8157                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8158                                 "0507 Failed allocate receive DRQ\n");
8159                 goto out_error;
8160         }
8161         phba->sli4_hba.dat_rq = qdesc;
8162
8163         if (phba->nvmet_support) {
8164                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8165                         /* Create NVMET Receive Queue for header */
8166                         qdesc = lpfc_sli4_queue_alloc(phba,
8167                                                       phba->sli4_hba.rq_esize,
8168                                                       phba->sli4_hba.rq_ecount);
8169                         if (!qdesc) {
8170                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8171                                                 "3146 Failed allocate "
8172                                                 "receive HRQ\n");
8173                                 goto out_error;
8174                         }
8175                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8176
8177                         /* Only needed for header of RQ pair */
8178                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8179                                               GFP_KERNEL);
8180                         if (qdesc->rqbp == NULL) {
8181                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8182                                                 "6131 Failed allocate "
8183                                                 "Header RQBP\n");
8184                                 goto out_error;
8185                         }
8186
8187                         /* Create NVMET Receive Queue for data */
8188                         qdesc = lpfc_sli4_queue_alloc(phba,
8189                                                       phba->sli4_hba.rq_esize,
8190                                                       phba->sli4_hba.rq_ecount);
8191                         if (!qdesc) {
8192                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8193                                                 "3156 Failed allocate "
8194                                                 "receive DRQ\n");
8195                                 goto out_error;
8196                         }
8197                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8198                 }
8199         }
8200
8201         /* Create the Queues needed for Flash Optimized Fabric operations */
8202         if (phba->cfg_fof)
8203                 lpfc_fof_queue_create(phba);
8204         return 0;
8205
8206 out_error:
8207         lpfc_sli4_queue_destroy(phba);
8208         return -ENOMEM;
8209 }
8210
8211 static inline void
8212 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8213 {
8214         if (*qp != NULL) {
8215                 lpfc_sli4_queue_free(*qp);
8216                 *qp = NULL;
8217         }
8218 }
8219
8220 static inline void
8221 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8222 {
8223         int idx;
8224
8225         if (*qs == NULL)
8226                 return;
8227
8228         for (idx = 0; idx < max; idx++)
8229                 __lpfc_sli4_release_queue(&(*qs)[idx]);
8230
8231         kfree(*qs);
8232         *qs = NULL;
8233 }
8234
8235 static inline void
8236 lpfc_sli4_release_queue_map(uint16_t **qmap)
8237 {
8238         if (*qmap != NULL) {
8239                 kfree(*qmap);
8240                 *qmap = NULL;
8241         }
8242 }
8243
8244 /**
8245  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8246  * @phba: pointer to lpfc hba data structure.
8247  *
8248  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8249  * operation.
8250  *
8251  * Return codes
8252  *      0 - successful
8253  *      -ENOMEM - No available memory
8254  *      -EIO - The mailbox failed to complete successfully.
8255  **/
8256 void
8257 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8258 {
8259         if (phba->cfg_fof)
8260                 lpfc_fof_queue_destroy(phba);
8261
8262         /* Release HBA eqs */
8263         lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8264
8265         /* Release FCP cqs */
8266         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8267                                  phba->cfg_fcp_io_channel);
8268
8269         /* Release FCP wqs */
8270         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8271                                  phba->cfg_fcp_io_channel);
8272
8273         /* Release FCP CQ mapping array */
8274         lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8275
8276         /* Release NVME cqs */
8277         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8278                                         phba->cfg_nvme_io_channel);
8279
8280         /* Release NVME wqs */
8281         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8282                                         phba->cfg_nvme_io_channel);
8283
8284         /* Release NVME CQ mapping array */
8285         lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8286
8287         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8288                                         phba->cfg_nvmet_mrq);
8289
8290         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8291                                         phba->cfg_nvmet_mrq);
8292         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8293                                         phba->cfg_nvmet_mrq);
8294
8295         /* Release mailbox command work queue */
8296         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8297
8298         /* Release ELS work queue */
8299         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8300
8301         /* Release ELS work queue */
8302         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8303
8304         /* Release unsolicited receive queue */
8305         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8306         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8307
8308         /* Release ELS complete queue */
8309         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8310
8311         /* Release NVME LS complete queue */
8312         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8313
8314         /* Release mailbox command complete queue */
8315         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8316
8317         /* Everything on this list has been freed */
8318         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8319 }
8320
8321 int
8322 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
8323                     struct lpfc_queue *drq, int count)
8324 {
8325         int rc, i;
8326         struct lpfc_rqe hrqe;
8327         struct lpfc_rqe drqe;
8328         struct lpfc_rqb *rqbp;
8329         struct rqb_dmabuf *rqb_buffer;
8330         LIST_HEAD(rqb_buf_list);
8331
8332         rqbp = hrq->rqbp;
8333         for (i = 0; i < count; i++) {
8334                 rqb_buffer = (rqbp->rqb_alloc_buffer)(phba);
8335                 if (!rqb_buffer)
8336                         break;
8337                 rqb_buffer->hrq = hrq;
8338                 rqb_buffer->drq = drq;
8339                 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
8340         }
8341         while (!list_empty(&rqb_buf_list)) {
8342                 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
8343                                  hbuf.list);
8344
8345                 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
8346                 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
8347                 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
8348                 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
8349                 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
8350                 if (rc < 0) {
8351                         (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8352                 } else {
8353                         list_add_tail(&rqb_buffer->hbuf.list,
8354                                       &rqbp->rqb_buffer_list);
8355                         rqbp->buffer_count++;
8356                 }
8357         }
8358         return 1;
8359 }
8360
8361 int
8362 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8363 {
8364         struct lpfc_rqb *rqbp;
8365         struct lpfc_dmabuf *h_buf;
8366         struct rqb_dmabuf *rqb_buffer;
8367
8368         rqbp = rq->rqbp;
8369         while (!list_empty(&rqbp->rqb_buffer_list)) {
8370                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8371                                  struct lpfc_dmabuf, list);
8372
8373                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8374                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8375                 rqbp->buffer_count--;
8376         }
8377         return 1;
8378 }
8379
8380 static int
8381 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8382         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8383         int qidx, uint32_t qtype)
8384 {
8385         struct lpfc_sli_ring *pring;
8386         int rc;
8387
8388         if (!eq || !cq || !wq) {
8389                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8390                         "6085 Fast-path %s (%d) not allocated\n",
8391                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8392                 return -ENOMEM;
8393         }
8394
8395         /* create the Cq first */
8396         rc = lpfc_cq_create(phba, cq, eq,
8397                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8398         if (rc) {
8399                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8400                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
8401                         qidx, (uint32_t)rc);
8402                 return rc;
8403         }
8404
8405         if (qtype != LPFC_MBOX) {
8406                 /* Setup nvme_cq_map for fast lookup */
8407                 if (cq_map)
8408                         *cq_map = cq->queue_id;
8409
8410                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8411                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8412                         qidx, cq->queue_id, qidx, eq->queue_id);
8413
8414                 /* create the wq */
8415                 rc = lpfc_wq_create(phba, wq, cq, qtype);
8416                 if (rc) {
8417                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8418                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8419                                 qidx, (uint32_t)rc);
8420                         /* no need to tear down cq - caller will do so */
8421                         return rc;
8422                 }
8423
8424                 /* Bind this CQ/WQ to the NVME ring */
8425                 pring = wq->pring;
8426                 pring->sli.sli4.wqp = (void *)wq;
8427                 cq->pring = pring;
8428
8429                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8430                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8431                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8432         } else {
8433                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8434                 if (rc) {
8435                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8436                                 "0539 Failed setup of slow-path MQ: "
8437                                 "rc = 0x%x\n", rc);
8438                         /* no need to tear down cq - caller will do so */
8439                         return rc;
8440                 }
8441
8442                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8443                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8444                         phba->sli4_hba.mbx_wq->queue_id,
8445                         phba->sli4_hba.mbx_cq->queue_id);
8446         }
8447
8448         return 0;
8449 }
8450
8451 /**
8452  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8453  * @phba: pointer to lpfc hba data structure.
8454  *
8455  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8456  * operation.
8457  *
8458  * Return codes
8459  *      0 - successful
8460  *      -ENOMEM - No available memory
8461  *      -EIO - The mailbox failed to complete successfully.
8462  **/
8463 int
8464 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8465 {
8466         uint32_t shdr_status, shdr_add_status;
8467         union lpfc_sli4_cfg_shdr *shdr;
8468         LPFC_MBOXQ_t *mboxq;
8469         int qidx;
8470         uint32_t length, io_channel;
8471         int rc = -ENOMEM;
8472
8473         /* Check for dual-ULP support */
8474         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8475         if (!mboxq) {
8476                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8477                                 "3249 Unable to allocate memory for "
8478                                 "QUERY_FW_CFG mailbox command\n");
8479                 return -ENOMEM;
8480         }
8481         length = (sizeof(struct lpfc_mbx_query_fw_config) -
8482                   sizeof(struct lpfc_sli4_cfg_mhdr));
8483         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8484                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8485                          length, LPFC_SLI4_MBX_EMBED);
8486
8487         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8488
8489         shdr = (union lpfc_sli4_cfg_shdr *)
8490                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8491         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8492         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8493         if (shdr_status || shdr_add_status || rc) {
8494                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8495                                 "3250 QUERY_FW_CFG mailbox failed with status "
8496                                 "x%x add_status x%x, mbx status x%x\n",
8497                                 shdr_status, shdr_add_status, rc);
8498                 if (rc != MBX_TIMEOUT)
8499                         mempool_free(mboxq, phba->mbox_mem_pool);
8500                 rc = -ENXIO;
8501                 goto out_error;
8502         }
8503
8504         phba->sli4_hba.fw_func_mode =
8505                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
8506         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
8507         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
8508         phba->sli4_hba.physical_port =
8509                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
8510         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8511                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
8512                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
8513                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
8514
8515         if (rc != MBX_TIMEOUT)
8516                 mempool_free(mboxq, phba->mbox_mem_pool);
8517
8518         /*
8519          * Set up HBA Event Queues (EQs)
8520          */
8521         io_channel = phba->io_channel_irqs;
8522
8523         /* Set up HBA event queue */
8524         if (io_channel && !phba->sli4_hba.hba_eq) {
8525                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8526                                 "3147 Fast-path EQs not allocated\n");
8527                 rc = -ENOMEM;
8528                 goto out_error;
8529         }
8530         for (qidx = 0; qidx < io_channel; qidx++) {
8531                 if (!phba->sli4_hba.hba_eq[qidx]) {
8532                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8533                                         "0522 Fast-path EQ (%d) not "
8534                                         "allocated\n", qidx);
8535                         rc = -ENOMEM;
8536                         goto out_destroy;
8537                 }
8538                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
8539                                                 phba->cfg_fcp_imax);
8540                 if (rc) {
8541                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8542                                         "0523 Failed setup of fast-path EQ "
8543                                         "(%d), rc = 0x%x\n", qidx,
8544                                         (uint32_t)rc);
8545                         goto out_destroy;
8546                 }
8547                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8548                                 "2584 HBA EQ setup: queue[%d]-id=%d\n",
8549                                 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
8550         }
8551
8552         if (phba->cfg_nvme_io_channel) {
8553                 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
8554                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8555                                 "6084 Fast-path NVME %s array not allocated\n",
8556                                 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
8557                         rc = -ENOMEM;
8558                         goto out_destroy;
8559                 }
8560
8561                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
8562                         rc = lpfc_create_wq_cq(phba,
8563                                         phba->sli4_hba.hba_eq[
8564                                                 qidx % io_channel],
8565                                         phba->sli4_hba.nvme_cq[qidx],
8566                                         phba->sli4_hba.nvme_wq[qidx],
8567                                         &phba->sli4_hba.nvme_cq_map[qidx],
8568                                         qidx, LPFC_NVME);
8569                         if (rc) {
8570                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8571                                         "6123 Failed to setup fastpath "
8572                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
8573                                         qidx, (uint32_t)rc);
8574                                 goto out_destroy;
8575                         }
8576                 }
8577         }
8578
8579         if (phba->cfg_fcp_io_channel) {
8580                 /* Set up fast-path FCP Response Complete Queue */
8581                 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
8582                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8583                                 "3148 Fast-path FCP %s array not allocated\n",
8584                                 phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
8585                         rc = -ENOMEM;
8586                         goto out_destroy;
8587                 }
8588
8589                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
8590                         rc = lpfc_create_wq_cq(phba,
8591                                         phba->sli4_hba.hba_eq[
8592                                                 qidx % io_channel],
8593                                         phba->sli4_hba.fcp_cq[qidx],
8594                                         phba->sli4_hba.fcp_wq[qidx],
8595                                         &phba->sli4_hba.fcp_cq_map[qidx],
8596                                         qidx, LPFC_FCP);
8597                         if (rc) {
8598                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8599                                         "0535 Failed to setup fastpath "
8600                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
8601                                         qidx, (uint32_t)rc);
8602                                 goto out_destroy;
8603                         }
8604                 }
8605         }
8606
8607         /*
8608          * Set up Slow Path Complete Queues (CQs)
8609          */
8610
8611         /* Set up slow-path MBOX CQ/MQ */
8612
8613         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
8614                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8615                                 "0528 %s not allocated\n",
8616                                 phba->sli4_hba.mbx_cq ?
8617                                 "Mailbox WQ" : "Mailbox CQ");
8618                 rc = -ENOMEM;
8619                 goto out_destroy;
8620         }
8621
8622         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8623                                phba->sli4_hba.mbx_cq,
8624                                phba->sli4_hba.mbx_wq,
8625                                NULL, 0, LPFC_MBOX);
8626         if (rc) {
8627                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8628                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
8629                         (uint32_t)rc);
8630                 goto out_destroy;
8631         }
8632         if (phba->nvmet_support) {
8633                 if (!phba->sli4_hba.nvmet_cqset) {
8634                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8635                                         "3165 Fast-path NVME CQ Set "
8636                                         "array not allocated\n");
8637                         rc = -ENOMEM;
8638                         goto out_destroy;
8639                 }
8640                 if (phba->cfg_nvmet_mrq > 1) {
8641                         rc = lpfc_cq_create_set(phba,
8642                                         phba->sli4_hba.nvmet_cqset,
8643                                         phba->sli4_hba.hba_eq,
8644                                         LPFC_WCQ, LPFC_NVMET);
8645                         if (rc) {
8646                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8647                                                 "3164 Failed setup of NVME CQ "
8648                                                 "Set, rc = 0x%x\n",
8649                                                 (uint32_t)rc);
8650                                 goto out_destroy;
8651                         }
8652                 } else {
8653                         /* Set up NVMET Receive Complete Queue */
8654                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
8655                                             phba->sli4_hba.hba_eq[0],
8656                                             LPFC_WCQ, LPFC_NVMET);
8657                         if (rc) {
8658                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8659                                                 "6089 Failed setup NVMET CQ: "
8660                                                 "rc = 0x%x\n", (uint32_t)rc);
8661                                 goto out_destroy;
8662                         }
8663                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8664                                         "6090 NVMET CQ setup: cq-id=%d, "
8665                                         "parent eq-id=%d\n",
8666                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
8667                                         phba->sli4_hba.hba_eq[0]->queue_id);
8668                 }
8669         }
8670
8671         /* Set up slow-path ELS WQ/CQ */
8672         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
8673                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8674                                 "0530 ELS %s not allocated\n",
8675                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
8676                 rc = -ENOMEM;
8677                 goto out_destroy;
8678         }
8679         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8680                                         phba->sli4_hba.els_cq,
8681                                         phba->sli4_hba.els_wq,
8682                                         NULL, 0, LPFC_ELS);
8683         if (rc) {
8684                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8685                         "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
8686                         (uint32_t)rc);
8687                 goto out_destroy;
8688         }
8689         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8690                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
8691                         phba->sli4_hba.els_wq->queue_id,
8692                         phba->sli4_hba.els_cq->queue_id);
8693
8694         if (phba->cfg_nvme_io_channel) {
8695                 /* Set up NVME LS Complete Queue */
8696                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
8697                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8698                                         "6091 LS %s not allocated\n",
8699                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
8700                         rc = -ENOMEM;
8701                         goto out_destroy;
8702                 }
8703                 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8704                                         phba->sli4_hba.nvmels_cq,
8705                                         phba->sli4_hba.nvmels_wq,
8706                                         NULL, 0, LPFC_NVME_LS);
8707                 if (rc) {
8708                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8709                                 "0529 Failed setup of NVVME LS WQ/CQ: "
8710                                 "rc = 0x%x\n", (uint32_t)rc);
8711                         goto out_destroy;
8712                 }
8713
8714                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8715                                 "6096 ELS WQ setup: wq-id=%d, "
8716                                 "parent cq-id=%d\n",
8717                                 phba->sli4_hba.nvmels_wq->queue_id,
8718                                 phba->sli4_hba.nvmels_cq->queue_id);
8719         }
8720
8721         /*
8722          * Create NVMET Receive Queue (RQ)
8723          */
8724         if (phba->nvmet_support) {
8725                 if ((!phba->sli4_hba.nvmet_cqset) ||
8726                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
8727                     (!phba->sli4_hba.nvmet_mrq_data)) {
8728                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8729                                         "6130 MRQ CQ Queues not "
8730                                         "allocated\n");
8731                         rc = -ENOMEM;
8732                         goto out_destroy;
8733                 }
8734                 if (phba->cfg_nvmet_mrq > 1) {
8735                         rc = lpfc_mrq_create(phba,
8736                                              phba->sli4_hba.nvmet_mrq_hdr,
8737                                              phba->sli4_hba.nvmet_mrq_data,
8738                                              phba->sli4_hba.nvmet_cqset,
8739                                              LPFC_NVMET);
8740                         if (rc) {
8741                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8742                                                 "6098 Failed setup of NVMET "
8743                                                 "MRQ: rc = 0x%x\n",
8744                                                 (uint32_t)rc);
8745                                 goto out_destroy;
8746                         }
8747
8748                 } else {
8749                         rc = lpfc_rq_create(phba,
8750                                             phba->sli4_hba.nvmet_mrq_hdr[0],
8751                                             phba->sli4_hba.nvmet_mrq_data[0],
8752                                             phba->sli4_hba.nvmet_cqset[0],
8753                                             LPFC_NVMET);
8754                         if (rc) {
8755                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8756                                                 "6057 Failed setup of NVMET "
8757                                                 "Receive Queue: rc = 0x%x\n",
8758                                                 (uint32_t)rc);
8759                                 goto out_destroy;
8760                         }
8761
8762                         lpfc_printf_log(
8763                                 phba, KERN_INFO, LOG_INIT,
8764                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
8765                                 "dat-rq-id=%d parent cq-id=%d\n",
8766                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
8767                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
8768                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
8769
8770                 }
8771         }
8772
8773         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
8774                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8775                                 "0540 Receive Queue not allocated\n");
8776                 rc = -ENOMEM;
8777                 goto out_destroy;
8778         }
8779
8780         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
8781         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
8782
8783         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
8784                             phba->sli4_hba.els_cq, LPFC_USOL);
8785         if (rc) {
8786                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8787                                 "0541 Failed setup of Receive Queue: "
8788                                 "rc = 0x%x\n", (uint32_t)rc);
8789                 goto out_destroy;
8790         }
8791
8792         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8793                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
8794                         "parent cq-id=%d\n",
8795                         phba->sli4_hba.hdr_rq->queue_id,
8796                         phba->sli4_hba.dat_rq->queue_id,
8797                         phba->sli4_hba.els_cq->queue_id);
8798
8799         if (phba->cfg_fof) {
8800                 rc = lpfc_fof_queue_setup(phba);
8801                 if (rc) {
8802                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8803                                         "0549 Failed setup of FOF Queues: "
8804                                         "rc = 0x%x\n", rc);
8805                         goto out_destroy;
8806                 }
8807         }
8808
8809         for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
8810                 lpfc_modify_hba_eq_delay(phba, qidx);
8811
8812         return 0;
8813
8814 out_destroy:
8815         lpfc_sli4_queue_unset(phba);
8816 out_error:
8817         return rc;
8818 }
8819
8820 /**
8821  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
8822  * @phba: pointer to lpfc hba data structure.
8823  *
8824  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
8825  * operation.
8826  *
8827  * Return codes
8828  *      0 - successful
8829  *      -ENOMEM - No available memory
8830  *      -EIO - The mailbox failed to complete successfully.
8831  **/
8832 void
8833 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
8834 {
8835         int qidx;
8836
8837         /* Unset the queues created for Flash Optimized Fabric operations */
8838         if (phba->cfg_fof)
8839                 lpfc_fof_queue_destroy(phba);
8840
8841         /* Unset mailbox command work queue */
8842         if (phba->sli4_hba.mbx_wq)
8843                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
8844
8845         /* Unset NVME LS work queue */
8846         if (phba->sli4_hba.nvmels_wq)
8847                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
8848
8849         /* Unset ELS work queue */
8850         if (phba->sli4_hba.els_cq)
8851                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
8852
8853         /* Unset unsolicited receive queue */
8854         if (phba->sli4_hba.hdr_rq)
8855                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
8856                                 phba->sli4_hba.dat_rq);
8857
8858         /* Unset FCP work queue */
8859         if (phba->sli4_hba.fcp_wq)
8860                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
8861                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
8862
8863         /* Unset NVME work queue */
8864         if (phba->sli4_hba.nvme_wq) {
8865                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8866                         lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
8867         }
8868
8869         /* Unset mailbox command complete queue */
8870         if (phba->sli4_hba.mbx_cq)
8871                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
8872
8873         /* Unset ELS complete queue */
8874         if (phba->sli4_hba.els_cq)
8875                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
8876
8877         /* Unset NVME LS complete queue */
8878         if (phba->sli4_hba.nvmels_cq)
8879                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
8880
8881         /* Unset NVME response complete queue */
8882         if (phba->sli4_hba.nvme_cq)
8883                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8884                         lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
8885
8886         /* Unset NVMET MRQ queue */
8887         if (phba->sli4_hba.nvmet_mrq_hdr) {
8888                 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
8889                         lpfc_rq_destroy(phba,
8890                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
8891                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
8892         }
8893
8894         /* Unset NVMET CQ Set complete queue */
8895         if (phba->sli4_hba.nvmet_cqset) {
8896                 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
8897                         lpfc_cq_destroy(phba,
8898                                         phba->sli4_hba.nvmet_cqset[qidx]);
8899         }
8900
8901         /* Unset FCP response complete queue */
8902         if (phba->sli4_hba.fcp_cq)
8903                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
8904                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
8905
8906         /* Unset fast-path event queue */
8907         if (phba->sli4_hba.hba_eq)
8908                 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
8909                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
8910 }
8911
8912 /**
8913  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
8914  * @phba: pointer to lpfc hba data structure.
8915  *
8916  * This routine is invoked to allocate and set up a pool of completion queue
8917  * events. The body of the completion queue event is a completion queue entry
8918  * CQE. For now, this pool is used for the interrupt service routine to queue
8919  * the following HBA completion queue events for the worker thread to process:
8920  *   - Mailbox asynchronous events
8921  *   - Receive queue completion unsolicited events
8922  * Later, this can be used for all the slow-path events.
8923  *
8924  * Return codes
8925  *      0 - successful
8926  *      -ENOMEM - No available memory
8927  **/
8928 static int
8929 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
8930 {
8931         struct lpfc_cq_event *cq_event;
8932         int i;
8933
8934         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
8935                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
8936                 if (!cq_event)
8937                         goto out_pool_create_fail;
8938                 list_add_tail(&cq_event->list,
8939                               &phba->sli4_hba.sp_cqe_event_pool);
8940         }
8941         return 0;
8942
8943 out_pool_create_fail:
8944         lpfc_sli4_cq_event_pool_destroy(phba);
8945         return -ENOMEM;
8946 }
8947
8948 /**
8949  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
8950  * @phba: pointer to lpfc hba data structure.
8951  *
8952  * This routine is invoked to free the pool of completion queue events at
8953  * driver unload time. Note that, it is the responsibility of the driver
8954  * cleanup routine to free all the outstanding completion-queue events
8955  * allocated from this pool back into the pool before invoking this routine
8956  * to destroy the pool.
8957  **/
8958 static void
8959 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
8960 {
8961         struct lpfc_cq_event *cq_event, *next_cq_event;
8962
8963         list_for_each_entry_safe(cq_event, next_cq_event,
8964                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
8965                 list_del(&cq_event->list);
8966                 kfree(cq_event);
8967         }
8968 }
8969
8970 /**
8971  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8972  * @phba: pointer to lpfc hba data structure.
8973  *
8974  * This routine is the lock free version of the API invoked to allocate a
8975  * completion-queue event from the free pool.
8976  *
8977  * Return: Pointer to the newly allocated completion-queue event if successful
8978  *         NULL otherwise.
8979  **/
8980 struct lpfc_cq_event *
8981 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8982 {
8983         struct lpfc_cq_event *cq_event = NULL;
8984
8985         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
8986                          struct lpfc_cq_event, list);
8987         return cq_event;
8988 }
8989
8990 /**
8991  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8992  * @phba: pointer to lpfc hba data structure.
8993  *
8994  * This routine is the lock version of the API invoked to allocate a
8995  * completion-queue event from the free pool.
8996  *
8997  * Return: Pointer to the newly allocated completion-queue event if successful
8998  *         NULL otherwise.
8999  **/
9000 struct lpfc_cq_event *
9001 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9002 {
9003         struct lpfc_cq_event *cq_event;
9004         unsigned long iflags;
9005
9006         spin_lock_irqsave(&phba->hbalock, iflags);
9007         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9008         spin_unlock_irqrestore(&phba->hbalock, iflags);
9009         return cq_event;
9010 }
9011
9012 /**
9013  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9014  * @phba: pointer to lpfc hba data structure.
9015  * @cq_event: pointer to the completion queue event to be freed.
9016  *
9017  * This routine is the lock free version of the API invoked to release a
9018  * completion-queue event back into the free pool.
9019  **/
9020 void
9021 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9022                              struct lpfc_cq_event *cq_event)
9023 {
9024         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9025 }
9026
9027 /**
9028  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9029  * @phba: pointer to lpfc hba data structure.
9030  * @cq_event: pointer to the completion queue event to be freed.
9031  *
9032  * This routine is the lock version of the API invoked to release a
9033  * completion-queue event back into the free pool.
9034  **/
9035 void
9036 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9037                            struct lpfc_cq_event *cq_event)
9038 {
9039         unsigned long iflags;
9040         spin_lock_irqsave(&phba->hbalock, iflags);
9041         __lpfc_sli4_cq_event_release(phba, cq_event);
9042         spin_unlock_irqrestore(&phba->hbalock, iflags);
9043 }
9044
9045 /**
9046  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9047  * @phba: pointer to lpfc hba data structure.
9048  *
9049  * This routine is to free all the pending completion-queue events to the
9050  * back into the free pool for device reset.
9051  **/
9052 static void
9053 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9054 {
9055         LIST_HEAD(cqelist);
9056         struct lpfc_cq_event *cqe;
9057         unsigned long iflags;
9058
9059         /* Retrieve all the pending WCQEs from pending WCQE lists */
9060         spin_lock_irqsave(&phba->hbalock, iflags);
9061         /* Pending FCP XRI abort events */
9062         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9063                          &cqelist);
9064         /* Pending ELS XRI abort events */
9065         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9066                          &cqelist);
9067         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9068                 /* Pending NVME XRI abort events */
9069                 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
9070                                  &cqelist);
9071         }
9072         /* Pending asynnc events */
9073         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9074                          &cqelist);
9075         spin_unlock_irqrestore(&phba->hbalock, iflags);
9076
9077         while (!list_empty(&cqelist)) {
9078                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9079                 lpfc_sli4_cq_event_release(phba, cqe);
9080         }
9081 }
9082
9083 /**
9084  * lpfc_pci_function_reset - Reset pci function.
9085  * @phba: pointer to lpfc hba data structure.
9086  *
9087  * This routine is invoked to request a PCI function reset. It will destroys
9088  * all resources assigned to the PCI function which originates this request.
9089  *
9090  * Return codes
9091  *      0 - successful
9092  *      -ENOMEM - No available memory
9093  *      -EIO - The mailbox failed to complete successfully.
9094  **/
9095 int
9096 lpfc_pci_function_reset(struct lpfc_hba *phba)
9097 {
9098         LPFC_MBOXQ_t *mboxq;
9099         uint32_t rc = 0, if_type;
9100         uint32_t shdr_status, shdr_add_status;
9101         uint32_t rdy_chk;
9102         uint32_t port_reset = 0;
9103         union lpfc_sli4_cfg_shdr *shdr;
9104         struct lpfc_register reg_data;
9105         uint16_t devid;
9106
9107         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9108         switch (if_type) {
9109         case LPFC_SLI_INTF_IF_TYPE_0:
9110                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9111                                                        GFP_KERNEL);
9112                 if (!mboxq) {
9113                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9114                                         "0494 Unable to allocate memory for "
9115                                         "issuing SLI_FUNCTION_RESET mailbox "
9116                                         "command\n");
9117                         return -ENOMEM;
9118                 }
9119
9120                 /* Setup PCI function reset mailbox-ioctl command */
9121                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9122                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9123                                  LPFC_SLI4_MBX_EMBED);
9124                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9125                 shdr = (union lpfc_sli4_cfg_shdr *)
9126                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9127                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9128                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9129                                          &shdr->response);
9130                 if (rc != MBX_TIMEOUT)
9131                         mempool_free(mboxq, phba->mbox_mem_pool);
9132                 if (shdr_status || shdr_add_status || rc) {
9133                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9134                                         "0495 SLI_FUNCTION_RESET mailbox "
9135                                         "failed with status x%x add_status x%x,"
9136                                         " mbx status x%x\n",
9137                                         shdr_status, shdr_add_status, rc);
9138                         rc = -ENXIO;
9139                 }
9140                 break;
9141         case LPFC_SLI_INTF_IF_TYPE_2:
9142 wait:
9143                 /*
9144                  * Poll the Port Status Register and wait for RDY for
9145                  * up to 30 seconds. If the port doesn't respond, treat
9146                  * it as an error.
9147                  */
9148                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9149                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9150                                 STATUSregaddr, &reg_data.word0)) {
9151                                 rc = -ENODEV;
9152                                 goto out;
9153                         }
9154                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9155                                 break;
9156                         msleep(20);
9157                 }
9158
9159                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9160                         phba->work_status[0] = readl(
9161                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9162                         phba->work_status[1] = readl(
9163                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9164                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9165                                         "2890 Port not ready, port status reg "
9166                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9167                                         reg_data.word0,
9168                                         phba->work_status[0],
9169                                         phba->work_status[1]);
9170                         rc = -ENODEV;
9171                         goto out;
9172                 }
9173
9174                 if (!port_reset) {
9175                         /*
9176                          * Reset the port now
9177                          */
9178                         reg_data.word0 = 0;
9179                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
9180                                LPFC_SLIPORT_LITTLE_ENDIAN);
9181                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9182                                LPFC_SLIPORT_INIT_PORT);
9183                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9184                                CTRLregaddr);
9185                         /* flush */
9186                         pci_read_config_word(phba->pcidev,
9187                                              PCI_DEVICE_ID, &devid);
9188
9189                         port_reset = 1;
9190                         msleep(20);
9191                         goto wait;
9192                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
9193                         rc = -ENODEV;
9194                         goto out;
9195                 }
9196                 break;
9197
9198         case LPFC_SLI_INTF_IF_TYPE_1:
9199         default:
9200                 break;
9201         }
9202
9203 out:
9204         /* Catch the not-ready port failure after a port reset. */
9205         if (rc) {
9206                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9207                                 "3317 HBA not functional: IP Reset Failed "
9208                                 "try: echo fw_reset > board_mode\n");
9209                 rc = -ENODEV;
9210         }
9211
9212         return rc;
9213 }
9214
9215 /**
9216  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9217  * @phba: pointer to lpfc hba data structure.
9218  *
9219  * This routine is invoked to set up the PCI device memory space for device
9220  * with SLI-4 interface spec.
9221  *
9222  * Return codes
9223  *      0 - successful
9224  *      other values - error
9225  **/
9226 static int
9227 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9228 {
9229         struct pci_dev *pdev;
9230         unsigned long bar0map_len, bar1map_len, bar2map_len;
9231         int error = -ENODEV;
9232         uint32_t if_type;
9233
9234         /* Obtain PCI device reference */
9235         if (!phba->pcidev)
9236                 return error;
9237         else
9238                 pdev = phba->pcidev;
9239
9240         /* Set the device DMA mask size */
9241         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
9242          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
9243                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
9244                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
9245                         return error;
9246                 }
9247         }
9248
9249         /*
9250          * The BARs and register set definitions and offset locations are
9251          * dependent on the if_type.
9252          */
9253         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9254                                   &phba->sli4_hba.sli_intf.word0)) {
9255                 return error;
9256         }
9257
9258         /* There is no SLI3 failback for SLI4 devices. */
9259         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9260             LPFC_SLI_INTF_VALID) {
9261                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9262                                 "2894 SLI_INTF reg contents invalid "
9263                                 "sli_intf reg 0x%x\n",
9264                                 phba->sli4_hba.sli_intf.word0);
9265                 return error;
9266         }
9267
9268         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9269         /*
9270          * Get the bus address of SLI4 device Bar regions and the
9271          * number of bytes required by each mapping. The mapping of the
9272          * particular PCI BARs regions is dependent on the type of
9273          * SLI4 device.
9274          */
9275         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9276                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9277                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9278
9279                 /*
9280                  * Map SLI4 PCI Config Space Register base to a kernel virtual
9281                  * addr
9282                  */
9283                 phba->sli4_hba.conf_regs_memmap_p =
9284                         ioremap(phba->pci_bar0_map, bar0map_len);
9285                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9286                         dev_printk(KERN_ERR, &pdev->dev,
9287                                    "ioremap failed for SLI4 PCI config "
9288                                    "registers.\n");
9289                         goto out;
9290                 }
9291                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9292                 /* Set up BAR0 PCI config space register memory map */
9293                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9294         } else {
9295                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
9296                 bar0map_len = pci_resource_len(pdev, 1);
9297                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
9298                         dev_printk(KERN_ERR, &pdev->dev,
9299                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9300                         goto out;
9301                 }
9302                 phba->sli4_hba.conf_regs_memmap_p =
9303                                 ioremap(phba->pci_bar0_map, bar0map_len);
9304                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9305                         dev_printk(KERN_ERR, &pdev->dev,
9306                                 "ioremap failed for SLI4 PCI config "
9307                                 "registers.\n");
9308                                 goto out;
9309                 }
9310                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9311         }
9312
9313         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9314             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9315                 /*
9316                  * Map SLI4 if type 0 HBA Control Register base to a kernel
9317                  * virtual address and setup the registers.
9318                  */
9319                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9320                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9321                 phba->sli4_hba.ctrl_regs_memmap_p =
9322                                 ioremap(phba->pci_bar1_map, bar1map_len);
9323                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9324                         dev_printk(KERN_ERR, &pdev->dev,
9325                            "ioremap failed for SLI4 HBA control registers.\n");
9326                         goto out_iounmap_conf;
9327                 }
9328                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
9329                 lpfc_sli4_bar1_register_memmap(phba);
9330         }
9331
9332         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9333             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
9334                 /*
9335                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
9336                  * virtual address and setup the registers.
9337                  */
9338                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9339                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9340                 phba->sli4_hba.drbl_regs_memmap_p =
9341                                 ioremap(phba->pci_bar2_map, bar2map_len);
9342                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
9343                         dev_printk(KERN_ERR, &pdev->dev,
9344                            "ioremap failed for SLI4 HBA doorbell registers.\n");
9345                         goto out_iounmap_ctrl;
9346                 }
9347                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9348                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9349                 if (error)
9350                         goto out_iounmap_all;
9351         }
9352
9353         return 0;
9354
9355 out_iounmap_all:
9356         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9357 out_iounmap_ctrl:
9358         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9359 out_iounmap_conf:
9360         iounmap(phba->sli4_hba.conf_regs_memmap_p);
9361 out:
9362         return error;
9363 }
9364
9365 /**
9366  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9367  * @phba: pointer to lpfc hba data structure.
9368  *
9369  * This routine is invoked to unset the PCI device memory space for device
9370  * with SLI-4 interface spec.
9371  **/
9372 static void
9373 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9374 {
9375         uint32_t if_type;
9376         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9377
9378         switch (if_type) {
9379         case LPFC_SLI_INTF_IF_TYPE_0:
9380                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9381                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9382                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9383                 break;
9384         case LPFC_SLI_INTF_IF_TYPE_2:
9385                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9386                 break;
9387         case LPFC_SLI_INTF_IF_TYPE_1:
9388         default:
9389                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9390                            "FATAL - unsupported SLI4 interface type - %d\n",
9391                            if_type);
9392                 break;
9393         }
9394 }
9395
9396 /**
9397  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9398  * @phba: pointer to lpfc hba data structure.
9399  *
9400  * This routine is invoked to enable the MSI-X interrupt vectors to device
9401  * with SLI-3 interface specs.
9402  *
9403  * Return codes
9404  *   0 - successful
9405  *   other values - error
9406  **/
9407 static int
9408 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9409 {
9410         int rc;
9411         LPFC_MBOXQ_t *pmb;
9412
9413         /* Set up MSI-X multi-message vectors */
9414         rc = pci_alloc_irq_vectors(phba->pcidev,
9415                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9416         if (rc < 0) {
9417                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9418                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
9419                 goto vec_fail_out;
9420         }
9421
9422         /*
9423          * Assign MSI-X vectors to interrupt handlers
9424          */
9425
9426         /* vector-0 is associated to slow-path handler */
9427         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
9428                          &lpfc_sli_sp_intr_handler, 0,
9429                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
9430         if (rc) {
9431                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9432                                 "0421 MSI-X slow-path request_irq failed "
9433                                 "(%d)\n", rc);
9434                 goto msi_fail_out;
9435         }
9436
9437         /* vector-1 is associated to fast-path handler */
9438         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
9439                          &lpfc_sli_fp_intr_handler, 0,
9440                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
9441
9442         if (rc) {
9443                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9444                                 "0429 MSI-X fast-path request_irq failed "
9445                                 "(%d)\n", rc);
9446                 goto irq_fail_out;
9447         }
9448
9449         /*
9450          * Configure HBA MSI-X attention conditions to messages
9451          */
9452         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9453
9454         if (!pmb) {
9455                 rc = -ENOMEM;
9456                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9457                                 "0474 Unable to allocate memory for issuing "
9458                                 "MBOX_CONFIG_MSI command\n");
9459                 goto mem_fail_out;
9460         }
9461         rc = lpfc_config_msi(phba, pmb);
9462         if (rc)
9463                 goto mbx_fail_out;
9464         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9465         if (rc != MBX_SUCCESS) {
9466                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
9467                                 "0351 Config MSI mailbox command failed, "
9468                                 "mbxCmd x%x, mbxStatus x%x\n",
9469                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
9470                 goto mbx_fail_out;
9471         }
9472
9473         /* Free memory allocated for mailbox command */
9474         mempool_free(pmb, phba->mbox_mem_pool);
9475         return rc;
9476
9477 mbx_fail_out:
9478         /* Free memory allocated for mailbox command */
9479         mempool_free(pmb, phba->mbox_mem_pool);
9480
9481 mem_fail_out:
9482         /* free the irq already requested */
9483         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
9484
9485 irq_fail_out:
9486         /* free the irq already requested */
9487         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
9488
9489 msi_fail_out:
9490         /* Unconfigure MSI-X capability structure */
9491         pci_free_irq_vectors(phba->pcidev);
9492
9493 vec_fail_out:
9494         return rc;
9495 }
9496
9497 /**
9498  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
9499  * @phba: pointer to lpfc hba data structure.
9500  *
9501  * This routine is invoked to enable the MSI interrupt mode to device with
9502  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
9503  * enable the MSI vector. The device driver is responsible for calling the
9504  * request_irq() to register MSI vector with a interrupt the handler, which
9505  * is done in this function.
9506  *
9507  * Return codes
9508  *      0 - successful
9509  *      other values - error
9510  */
9511 static int
9512 lpfc_sli_enable_msi(struct lpfc_hba *phba)
9513 {
9514         int rc;
9515
9516         rc = pci_enable_msi(phba->pcidev);
9517         if (!rc)
9518                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9519                                 "0462 PCI enable MSI mode success.\n");
9520         else {
9521                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9522                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
9523                 return rc;
9524         }
9525
9526         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9527                          0, LPFC_DRIVER_NAME, phba);
9528         if (rc) {
9529                 pci_disable_msi(phba->pcidev);
9530                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9531                                 "0478 MSI request_irq failed (%d)\n", rc);
9532         }
9533         return rc;
9534 }
9535
9536 /**
9537  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
9538  * @phba: pointer to lpfc hba data structure.
9539  *
9540  * This routine is invoked to enable device interrupt and associate driver's
9541  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
9542  * spec. Depends on the interrupt mode configured to the driver, the driver
9543  * will try to fallback from the configured interrupt mode to an interrupt
9544  * mode which is supported by the platform, kernel, and device in the order
9545  * of:
9546  * MSI-X -> MSI -> IRQ.
9547  *
9548  * Return codes
9549  *   0 - successful
9550  *   other values - error
9551  **/
9552 static uint32_t
9553 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9554 {
9555         uint32_t intr_mode = LPFC_INTR_ERROR;
9556         int retval;
9557
9558         if (cfg_mode == 2) {
9559                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
9560                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
9561                 if (!retval) {
9562                         /* Now, try to enable MSI-X interrupt mode */
9563                         retval = lpfc_sli_enable_msix(phba);
9564                         if (!retval) {
9565                                 /* Indicate initialization to MSI-X mode */
9566                                 phba->intr_type = MSIX;
9567                                 intr_mode = 2;
9568                         }
9569                 }
9570         }
9571
9572         /* Fallback to MSI if MSI-X initialization failed */
9573         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9574                 retval = lpfc_sli_enable_msi(phba);
9575                 if (!retval) {
9576                         /* Indicate initialization to MSI mode */
9577                         phba->intr_type = MSI;
9578                         intr_mode = 1;
9579                 }
9580         }
9581
9582         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9583         if (phba->intr_type == NONE) {
9584                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9585                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9586                 if (!retval) {
9587                         /* Indicate initialization to INTx mode */
9588                         phba->intr_type = INTx;
9589                         intr_mode = 0;
9590                 }
9591         }
9592         return intr_mode;
9593 }
9594
9595 /**
9596  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
9597  * @phba: pointer to lpfc hba data structure.
9598  *
9599  * This routine is invoked to disable device interrupt and disassociate the
9600  * driver's interrupt handler(s) from interrupt vector(s) to device with
9601  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
9602  * release the interrupt vector(s) for the message signaled interrupt.
9603  **/
9604 static void
9605 lpfc_sli_disable_intr(struct lpfc_hba *phba)
9606 {
9607         int nr_irqs, i;
9608
9609         if (phba->intr_type == MSIX)
9610                 nr_irqs = LPFC_MSIX_VECTORS;
9611         else
9612                 nr_irqs = 1;
9613
9614         for (i = 0; i < nr_irqs; i++)
9615                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
9616         pci_free_irq_vectors(phba->pcidev);
9617
9618         /* Reset interrupt management states */
9619         phba->intr_type = NONE;
9620         phba->sli.slistat.sli_intr = 0;
9621 }
9622
9623 /**
9624  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
9625  * @phba: pointer to lpfc hba data structure.
9626  * @vectors: number of msix vectors allocated.
9627  *
9628  * The routine will figure out the CPU affinity assignment for every
9629  * MSI-X vector allocated for the HBA.  The hba_eq_hdl will be updated
9630  * with a pointer to the CPU mask that defines ALL the CPUs this vector
9631  * can be associated with. If the vector can be unquely associated with
9632  * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
9633  * In addition, the CPU to IO channel mapping will be calculated
9634  * and the phba->sli4_hba.cpu_map array will reflect this.
9635  */
9636 static void
9637 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
9638 {
9639         struct lpfc_vector_map_info *cpup;
9640         int index = 0;
9641         int vec = 0;
9642         int cpu;
9643 #ifdef CONFIG_X86
9644         struct cpuinfo_x86 *cpuinfo;
9645 #endif
9646
9647         /* Init cpu_map array */
9648         memset(phba->sli4_hba.cpu_map, 0xff,
9649                (sizeof(struct lpfc_vector_map_info) *
9650                phba->sli4_hba.num_present_cpu));
9651
9652         /* Update CPU map with physical id and core id of each CPU */
9653         cpup = phba->sli4_hba.cpu_map;
9654         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
9655 #ifdef CONFIG_X86
9656                 cpuinfo = &cpu_data(cpu);
9657                 cpup->phys_id = cpuinfo->phys_proc_id;
9658                 cpup->core_id = cpuinfo->cpu_core_id;
9659 #else
9660                 /* No distinction between CPUs for other platforms */
9661                 cpup->phys_id = 0;
9662                 cpup->core_id = 0;
9663 #endif
9664                 cpup->channel_id = index;  /* For now round robin */
9665                 cpup->irq = pci_irq_vector(phba->pcidev, vec);
9666                 vec++;
9667                 if (vec >= vectors)
9668                         vec = 0;
9669                 index++;
9670                 if (index >= phba->cfg_fcp_io_channel)
9671                         index = 0;
9672                 cpup++;
9673         }
9674 }
9675
9676
9677 /**
9678  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
9679  * @phba: pointer to lpfc hba data structure.
9680  *
9681  * This routine is invoked to enable the MSI-X interrupt vectors to device
9682  * with SLI-4 interface spec.
9683  *
9684  * Return codes
9685  * 0 - successful
9686  * other values - error
9687  **/
9688 static int
9689 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
9690 {
9691         int vectors, rc, index;
9692
9693         /* Set up MSI-X multi-message vectors */
9694         vectors = phba->io_channel_irqs;
9695         if (phba->cfg_fof)
9696                 vectors++;
9697
9698         rc = pci_alloc_irq_vectors(phba->pcidev,
9699                                 (phba->nvmet_support) ? 1 : 2,
9700                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
9701         if (rc < 0) {
9702                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9703                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
9704                 goto vec_fail_out;
9705         }
9706         vectors = rc;
9707
9708         /* Assign MSI-X vectors to interrupt handlers */
9709         for (index = 0; index < vectors; index++) {
9710                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
9711                 snprintf((char *)&phba->sli4_hba.handler_name[index],
9712                          LPFC_SLI4_HANDLER_NAME_SZ,
9713                          LPFC_DRIVER_HANDLER_NAME"%d", index);
9714
9715                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9716                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9717                 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
9718                 if (phba->cfg_fof && (index == (vectors - 1)))
9719                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
9720                                  &lpfc_sli4_fof_intr_handler, 0,
9721                                  (char *)&phba->sli4_hba.handler_name[index],
9722                                  &phba->sli4_hba.hba_eq_hdl[index]);
9723                 else
9724                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
9725                                  &lpfc_sli4_hba_intr_handler, 0,
9726                                  (char *)&phba->sli4_hba.handler_name[index],
9727                                  &phba->sli4_hba.hba_eq_hdl[index]);
9728                 if (rc) {
9729                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9730                                         "0486 MSI-X fast-path (%d) "
9731                                         "request_irq failed (%d)\n", index, rc);
9732                         goto cfg_fail_out;
9733                 }
9734         }
9735
9736         if (phba->cfg_fof)
9737                 vectors--;
9738
9739         if (vectors != phba->io_channel_irqs) {
9740                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9741                                 "3238 Reducing IO channels to match number of "
9742                                 "MSI-X vectors, requested %d got %d\n",
9743                                 phba->io_channel_irqs, vectors);
9744                 if (phba->cfg_fcp_io_channel > vectors)
9745                         phba->cfg_fcp_io_channel = vectors;
9746                 if (phba->cfg_nvme_io_channel > vectors)
9747                         phba->cfg_nvme_io_channel = vectors;
9748                 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
9749                         phba->io_channel_irqs = phba->cfg_fcp_io_channel;
9750                 else
9751                         phba->io_channel_irqs = phba->cfg_nvme_io_channel;
9752         }
9753         lpfc_cpu_affinity_check(phba, vectors);
9754
9755         return rc;
9756
9757 cfg_fail_out:
9758         /* free the irq already requested */
9759         for (--index; index >= 0; index--)
9760                 free_irq(pci_irq_vector(phba->pcidev, index),
9761                                 &phba->sli4_hba.hba_eq_hdl[index]);
9762
9763         /* Unconfigure MSI-X capability structure */
9764         pci_free_irq_vectors(phba->pcidev);
9765
9766 vec_fail_out:
9767         return rc;
9768 }
9769
9770 /**
9771  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9772  * @phba: pointer to lpfc hba data structure.
9773  *
9774  * This routine is invoked to enable the MSI interrupt mode to device with
9775  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9776  * to enable the MSI vector. The device driver is responsible for calling
9777  * the request_irq() to register MSI vector with a interrupt the handler,
9778  * which is done in this function.
9779  *
9780  * Return codes
9781  *      0 - successful
9782  *      other values - error
9783  **/
9784 static int
9785 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9786 {
9787         int rc, index;
9788
9789         rc = pci_enable_msi(phba->pcidev);
9790         if (!rc)
9791                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9792                                 "0487 PCI enable MSI mode success.\n");
9793         else {
9794                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9795                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
9796                 return rc;
9797         }
9798
9799         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9800                          0, LPFC_DRIVER_NAME, phba);
9801         if (rc) {
9802                 pci_disable_msi(phba->pcidev);
9803                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9804                                 "0490 MSI request_irq failed (%d)\n", rc);
9805                 return rc;
9806         }
9807
9808         for (index = 0; index < phba->io_channel_irqs; index++) {
9809                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9810                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9811         }
9812
9813         if (phba->cfg_fof) {
9814                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9815                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9816         }
9817         return 0;
9818 }
9819
9820 /**
9821  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9822  * @phba: pointer to lpfc hba data structure.
9823  *
9824  * This routine is invoked to enable device interrupt and associate driver's
9825  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9826  * interface spec. Depends on the interrupt mode configured to the driver,
9827  * the driver will try to fallback from the configured interrupt mode to an
9828  * interrupt mode which is supported by the platform, kernel, and device in
9829  * the order of:
9830  * MSI-X -> MSI -> IRQ.
9831  *
9832  * Return codes
9833  *      0 - successful
9834  *      other values - error
9835  **/
9836 static uint32_t
9837 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9838 {
9839         uint32_t intr_mode = LPFC_INTR_ERROR;
9840         int retval, idx;
9841
9842         if (cfg_mode == 2) {
9843                 /* Preparation before conf_msi mbox cmd */
9844                 retval = 0;
9845                 if (!retval) {
9846                         /* Now, try to enable MSI-X interrupt mode */
9847                         retval = lpfc_sli4_enable_msix(phba);
9848                         if (!retval) {
9849                                 /* Indicate initialization to MSI-X mode */
9850                                 phba->intr_type = MSIX;
9851                                 intr_mode = 2;
9852                         }
9853                 }
9854         }
9855
9856         /* Fallback to MSI if MSI-X initialization failed */
9857         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9858                 retval = lpfc_sli4_enable_msi(phba);
9859                 if (!retval) {
9860                         /* Indicate initialization to MSI mode */
9861                         phba->intr_type = MSI;
9862                         intr_mode = 1;
9863                 }
9864         }
9865
9866         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9867         if (phba->intr_type == NONE) {
9868                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9869                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9870                 if (!retval) {
9871                         struct lpfc_hba_eq_hdl *eqhdl;
9872
9873                         /* Indicate initialization to INTx mode */
9874                         phba->intr_type = INTx;
9875                         intr_mode = 0;
9876
9877                         for (idx = 0; idx < phba->io_channel_irqs; idx++) {
9878                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9879                                 eqhdl->idx = idx;
9880                                 eqhdl->phba = phba;
9881                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
9882                         }
9883                         if (phba->cfg_fof) {
9884                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9885                                 eqhdl->idx = idx;
9886                                 eqhdl->phba = phba;
9887                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
9888                         }
9889                 }
9890         }
9891         return intr_mode;
9892 }
9893
9894 /**
9895  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9896  * @phba: pointer to lpfc hba data structure.
9897  *
9898  * This routine is invoked to disable device interrupt and disassociate
9899  * the driver's interrupt handler(s) from interrupt vector(s) to device
9900  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9901  * will release the interrupt vector(s) for the message signaled interrupt.
9902  **/
9903 static void
9904 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9905 {
9906         /* Disable the currently initialized interrupt mode */
9907         if (phba->intr_type == MSIX) {
9908                 int index;
9909
9910                 /* Free up MSI-X multi-message vectors */
9911                 for (index = 0; index < phba->io_channel_irqs; index++)
9912                         free_irq(pci_irq_vector(phba->pcidev, index),
9913                                         &phba->sli4_hba.hba_eq_hdl[index]);
9914
9915                 if (phba->cfg_fof)
9916                         free_irq(pci_irq_vector(phba->pcidev, index),
9917                                         &phba->sli4_hba.hba_eq_hdl[index]);
9918         } else {
9919                 free_irq(phba->pcidev->irq, phba);
9920         }
9921
9922         pci_free_irq_vectors(phba->pcidev);
9923
9924         /* Reset interrupt management states */
9925         phba->intr_type = NONE;
9926         phba->sli.slistat.sli_intr = 0;
9927 }
9928
9929 /**
9930  * lpfc_unset_hba - Unset SLI3 hba device initialization
9931  * @phba: pointer to lpfc hba data structure.
9932  *
9933  * This routine is invoked to unset the HBA device initialization steps to
9934  * a device with SLI-3 interface spec.
9935  **/
9936 static void
9937 lpfc_unset_hba(struct lpfc_hba *phba)
9938 {
9939         struct lpfc_vport *vport = phba->pport;
9940         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
9941
9942         spin_lock_irq(shost->host_lock);
9943         vport->load_flag |= FC_UNLOADING;
9944         spin_unlock_irq(shost->host_lock);
9945
9946         kfree(phba->vpi_bmask);
9947         kfree(phba->vpi_ids);
9948
9949         lpfc_stop_hba_timers(phba);
9950
9951         phba->pport->work_port_events = 0;
9952
9953         lpfc_sli_hba_down(phba);
9954
9955         lpfc_sli_brdrestart(phba);
9956
9957         lpfc_sli_disable_intr(phba);
9958
9959         return;
9960 }
9961
9962 /**
9963  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9964  * @phba: Pointer to HBA context object.
9965  *
9966  * This function is called in the SLI4 code path to wait for completion
9967  * of device's XRIs exchange busy. It will check the XRI exchange busy
9968  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9969  * that, it will check the XRI exchange busy on outstanding FCP and ELS
9970  * I/Os every 30 seconds, log error message, and wait forever. Only when
9971  * all XRI exchange busy complete, the driver unload shall proceed with
9972  * invoking the function reset ioctl mailbox command to the CNA and the
9973  * the rest of the driver unload resource release.
9974  **/
9975 static void
9976 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9977 {
9978         int wait_time = 0;
9979         int nvme_xri_cmpl = 1;
9980         int nvmet_xri_cmpl = 1;
9981         int fcp_xri_cmpl = 1;
9982         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9983
9984         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
9985                 fcp_xri_cmpl =
9986                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9987         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9988                 nvme_xri_cmpl =
9989                         list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
9990                 nvmet_xri_cmpl =
9991                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
9992         }
9993
9994         while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
9995                !nvmet_xri_cmpl) {
9996                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9997                         if (!nvme_xri_cmpl)
9998                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9999                                                 "6100 NVME XRI exchange busy "
10000                                                 "wait time: %d seconds.\n",
10001                                                 wait_time/1000);
10002                         if (!fcp_xri_cmpl)
10003                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10004                                                 "2877 FCP XRI exchange busy "
10005                                                 "wait time: %d seconds.\n",
10006                                                 wait_time/1000);
10007                         if (!els_xri_cmpl)
10008                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10009                                                 "2878 ELS XRI exchange busy "
10010                                                 "wait time: %d seconds.\n",
10011                                                 wait_time/1000);
10012                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
10013                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
10014                 } else {
10015                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
10016                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
10017                 }
10018                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10019                         nvme_xri_cmpl = list_empty(
10020                                 &phba->sli4_hba.lpfc_abts_nvme_buf_list);
10021                         nvmet_xri_cmpl = list_empty(
10022                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10023                 }
10024
10025                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10026                         fcp_xri_cmpl = list_empty(
10027                                 &phba->sli4_hba.lpfc_abts_scsi_buf_list);
10028
10029                 els_xri_cmpl =
10030                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10031
10032         }
10033 }
10034
10035 /**
10036  * lpfc_sli4_hba_unset - Unset the fcoe hba
10037  * @phba: Pointer to HBA context object.
10038  *
10039  * This function is called in the SLI4 code path to reset the HBA's FCoE
10040  * function. The caller is not required to hold any lock. This routine
10041  * issues PCI function reset mailbox command to reset the FCoE function.
10042  * At the end of the function, it calls lpfc_hba_down_post function to
10043  * free any pending commands.
10044  **/
10045 static void
10046 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10047 {
10048         int wait_cnt = 0;
10049         LPFC_MBOXQ_t *mboxq;
10050         struct pci_dev *pdev = phba->pcidev;
10051
10052         lpfc_stop_hba_timers(phba);
10053         phba->sli4_hba.intr_enable = 0;
10054
10055         /*
10056          * Gracefully wait out the potential current outstanding asynchronous
10057          * mailbox command.
10058          */
10059
10060         /* First, block any pending async mailbox command from posted */
10061         spin_lock_irq(&phba->hbalock);
10062         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10063         spin_unlock_irq(&phba->hbalock);
10064         /* Now, trying to wait it out if we can */
10065         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10066                 msleep(10);
10067                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10068                         break;
10069         }
10070         /* Forcefully release the outstanding mailbox command if timed out */
10071         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10072                 spin_lock_irq(&phba->hbalock);
10073                 mboxq = phba->sli.mbox_active;
10074                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10075                 __lpfc_mbox_cmpl_put(phba, mboxq);
10076                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10077                 phba->sli.mbox_active = NULL;
10078                 spin_unlock_irq(&phba->hbalock);
10079         }
10080
10081         /* Abort all iocbs associated with the hba */
10082         lpfc_sli_hba_iocb_abort(phba);
10083
10084         /* Wait for completion of device XRI exchange busy */
10085         lpfc_sli4_xri_exchange_busy_wait(phba);
10086
10087         /* Disable PCI subsystem interrupt */
10088         lpfc_sli4_disable_intr(phba);
10089
10090         /* Disable SR-IOV if enabled */
10091         if (phba->cfg_sriov_nr_virtfn)
10092                 pci_disable_sriov(pdev);
10093
10094         /* Stop kthread signal shall trigger work_done one more time */
10095         kthread_stop(phba->worker_thread);
10096
10097         /* Unset the queues shared with the hardware then release all
10098          * allocated resources.
10099          */
10100         lpfc_sli4_queue_unset(phba);
10101         lpfc_sli4_queue_destroy(phba);
10102
10103         /* Reset SLI4 HBA FCoE function */
10104         lpfc_pci_function_reset(phba);
10105
10106         /* Stop the SLI4 device port */
10107         phba->pport->work_port_events = 0;
10108 }
10109
10110  /**
10111  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
10112  * @phba: Pointer to HBA context object.
10113  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10114  *
10115  * This function is called in the SLI4 code path to read the port's
10116  * sli4 capabilities.
10117  *
10118  * This function may be be called from any context that can block-wait
10119  * for the completion.  The expectation is that this routine is called
10120  * typically from probe_one or from the online routine.
10121  **/
10122 int
10123 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10124 {
10125         int rc;
10126         struct lpfc_mqe *mqe;
10127         struct lpfc_pc_sli4_params *sli4_params;
10128         uint32_t mbox_tmo;
10129
10130         rc = 0;
10131         mqe = &mboxq->u.mqe;
10132
10133         /* Read the port's SLI4 Parameters port capabilities */
10134         lpfc_pc_sli4_params(mboxq);
10135         if (!phba->sli4_hba.intr_enable)
10136                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10137         else {
10138                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10139                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10140         }
10141
10142         if (unlikely(rc))
10143                 return 1;
10144
10145         sli4_params = &phba->sli4_hba.pc_sli4_params;
10146         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
10147         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
10148         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
10149         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
10150                                              &mqe->un.sli4_params);
10151         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
10152                                              &mqe->un.sli4_params);
10153         sli4_params->proto_types = mqe->un.sli4_params.word3;
10154         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
10155         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
10156         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
10157         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
10158         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
10159         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
10160         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
10161         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
10162         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
10163         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
10164         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
10165         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
10166         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
10167         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
10168         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
10169         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
10170         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
10171         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
10172         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
10173         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
10174
10175         /* Make sure that sge_supp_len can be handled by the driver */
10176         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10177                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10178
10179         return rc;
10180 }
10181
10182 /**
10183  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10184  * @phba: Pointer to HBA context object.
10185  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10186  *
10187  * This function is called in the SLI4 code path to read the port's
10188  * sli4 capabilities.
10189  *
10190  * This function may be be called from any context that can block-wait
10191  * for the completion.  The expectation is that this routine is called
10192  * typically from probe_one or from the online routine.
10193  **/
10194 int
10195 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10196 {
10197         int rc;
10198         struct lpfc_mqe *mqe = &mboxq->u.mqe;
10199         struct lpfc_pc_sli4_params *sli4_params;
10200         uint32_t mbox_tmo;
10201         int length;
10202         struct lpfc_sli4_parameters *mbx_sli4_parameters;
10203
10204         /*
10205          * By default, the driver assumes the SLI4 port requires RPI
10206          * header postings.  The SLI4_PARAM response will correct this
10207          * assumption.
10208          */
10209         phba->sli4_hba.rpi_hdrs_in_use = 1;
10210
10211         /* Read the port's SLI4 Config Parameters */
10212         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10213                   sizeof(struct lpfc_sli4_cfg_mhdr));
10214         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10215                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10216                          length, LPFC_SLI4_MBX_EMBED);
10217         if (!phba->sli4_hba.intr_enable)
10218                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10219         else {
10220                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10221                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10222         }
10223         if (unlikely(rc))
10224                 return rc;
10225         sli4_params = &phba->sli4_hba.pc_sli4_params;
10226         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10227         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10228         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10229         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10230         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10231                                              mbx_sli4_parameters);
10232         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10233                                              mbx_sli4_parameters);
10234         if (bf_get(cfg_phwq, mbx_sli4_parameters))
10235                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10236         else
10237                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10238         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10239         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
10240         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10241         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10242         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10243         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10244         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10245         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10246         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10247                                             mbx_sli4_parameters);
10248         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10249         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10250                                            mbx_sli4_parameters);
10251         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10252         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10253         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10254                               bf_get(cfg_xib, mbx_sli4_parameters));
10255
10256         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10257             !phba->nvme_support) {
10258                 phba->nvme_support = 0;
10259                 phba->nvmet_support = 0;
10260                 phba->cfg_nvmet_mrq = 0;
10261                 phba->cfg_nvme_io_channel = 0;
10262                 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10263                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10264                                 "6101 Disabling NVME support: "
10265                                 "Not supported by firmware: %d %d\n",
10266                                 bf_get(cfg_nvme, mbx_sli4_parameters),
10267                                 bf_get(cfg_xib, mbx_sli4_parameters));
10268
10269                 /* If firmware doesn't support NVME, just use SCSI support */
10270                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10271                         return -ENODEV;
10272                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10273         }
10274
10275         if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp)
10276                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10277
10278         /* Make sure that sge_supp_len can be handled by the driver */
10279         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10280                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10281
10282         /*
10283          * Issue IOs with CDB embedded in WQE to minimized the number
10284          * of DMAs the firmware has to do. Setting this to 1 also forces
10285          * the driver to use 128 bytes WQEs for FCP IOs.
10286          */
10287         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10288                 phba->fcp_embed_io = 1;
10289         else
10290                 phba->fcp_embed_io = 0;
10291
10292         /*
10293          * Check if the SLI port supports MDS Diagnostics
10294          */
10295         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10296                 phba->mds_diags_support = 1;
10297         else
10298                 phba->mds_diags_support = 0;
10299         return 0;
10300 }
10301
10302 /**
10303  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10304  * @pdev: pointer to PCI device
10305  * @pid: pointer to PCI device identifier
10306  *
10307  * This routine is to be called to attach a device with SLI-3 interface spec
10308  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10309  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10310  * information of the device and driver to see if the driver state that it can
10311  * support this kind of device. If the match is successful, the driver core
10312  * invokes this routine. If this routine determines it can claim the HBA, it
10313  * does all the initialization that it needs to do to handle the HBA properly.
10314  *
10315  * Return code
10316  *      0 - driver can claim the device
10317  *      negative value - driver can not claim the device
10318  **/
10319 static int
10320 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10321 {
10322         struct lpfc_hba   *phba;
10323         struct lpfc_vport *vport = NULL;
10324         struct Scsi_Host  *shost = NULL;
10325         int error;
10326         uint32_t cfg_mode, intr_mode;
10327
10328         /* Allocate memory for HBA structure */
10329         phba = lpfc_hba_alloc(pdev);
10330         if (!phba)
10331                 return -ENOMEM;
10332
10333         /* Perform generic PCI device enabling operation */
10334         error = lpfc_enable_pci_dev(phba);
10335         if (error)
10336                 goto out_free_phba;
10337
10338         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
10339         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10340         if (error)
10341                 goto out_disable_pci_dev;
10342
10343         /* Set up SLI-3 specific device PCI memory space */
10344         error = lpfc_sli_pci_mem_setup(phba);
10345         if (error) {
10346                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10347                                 "1402 Failed to set up pci memory space.\n");
10348                 goto out_disable_pci_dev;
10349         }
10350
10351         /* Set up SLI-3 specific device driver resources */
10352         error = lpfc_sli_driver_resource_setup(phba);
10353         if (error) {
10354                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10355                                 "1404 Failed to set up driver resource.\n");
10356                 goto out_unset_pci_mem_s3;
10357         }
10358
10359         /* Initialize and populate the iocb list per host */
10360
10361         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
10362         if (error) {
10363                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10364                                 "1405 Failed to initialize iocb list.\n");
10365                 goto out_unset_driver_resource_s3;
10366         }
10367
10368         /* Set up common device driver resources */
10369         error = lpfc_setup_driver_resource_phase2(phba);
10370         if (error) {
10371                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10372                                 "1406 Failed to set up driver resource.\n");
10373                 goto out_free_iocb_list;
10374         }
10375
10376         /* Get the default values for Model Name and Description */
10377         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10378
10379         /* Create SCSI host to the physical port */
10380         error = lpfc_create_shost(phba);
10381         if (error) {
10382                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10383                                 "1407 Failed to create scsi host.\n");
10384                 goto out_unset_driver_resource;
10385         }
10386
10387         /* Configure sysfs attributes */
10388         vport = phba->pport;
10389         error = lpfc_alloc_sysfs_attr(vport);
10390         if (error) {
10391                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10392                                 "1476 Failed to allocate sysfs attr\n");
10393                 goto out_destroy_shost;
10394         }
10395
10396         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10397         /* Now, trying to enable interrupt and bring up the device */
10398         cfg_mode = phba->cfg_use_msi;
10399         while (true) {
10400                 /* Put device to a known state before enabling interrupt */
10401                 lpfc_stop_port(phba);
10402                 /* Configure and enable interrupt */
10403                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
10404                 if (intr_mode == LPFC_INTR_ERROR) {
10405                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10406                                         "0431 Failed to enable interrupt.\n");
10407                         error = -ENODEV;
10408                         goto out_free_sysfs_attr;
10409                 }
10410                 /* SLI-3 HBA setup */
10411                 if (lpfc_sli_hba_setup(phba)) {
10412                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10413                                         "1477 Failed to set up hba\n");
10414                         error = -ENODEV;
10415                         goto out_remove_device;
10416                 }
10417
10418                 /* Wait 50ms for the interrupts of previous mailbox commands */
10419                 msleep(50);
10420                 /* Check active interrupts on message signaled interrupts */
10421                 if (intr_mode == 0 ||
10422                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
10423                         /* Log the current active interrupt mode */
10424                         phba->intr_mode = intr_mode;
10425                         lpfc_log_intr_mode(phba, intr_mode);
10426                         break;
10427                 } else {
10428                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10429                                         "0447 Configure interrupt mode (%d) "
10430                                         "failed active interrupt test.\n",
10431                                         intr_mode);
10432                         /* Disable the current interrupt mode */
10433                         lpfc_sli_disable_intr(phba);
10434                         /* Try next level of interrupt mode */
10435                         cfg_mode = --intr_mode;
10436                 }
10437         }
10438
10439         /* Perform post initialization setup */
10440         lpfc_post_init_setup(phba);
10441
10442         /* Check if there are static vports to be created. */
10443         lpfc_create_static_vport(phba);
10444
10445         return 0;
10446
10447 out_remove_device:
10448         lpfc_unset_hba(phba);
10449 out_free_sysfs_attr:
10450         lpfc_free_sysfs_attr(vport);
10451 out_destroy_shost:
10452         lpfc_destroy_shost(phba);
10453 out_unset_driver_resource:
10454         lpfc_unset_driver_resource_phase2(phba);
10455 out_free_iocb_list:
10456         lpfc_free_iocb_list(phba);
10457 out_unset_driver_resource_s3:
10458         lpfc_sli_driver_resource_unset(phba);
10459 out_unset_pci_mem_s3:
10460         lpfc_sli_pci_mem_unset(phba);
10461 out_disable_pci_dev:
10462         lpfc_disable_pci_dev(phba);
10463         if (shost)
10464                 scsi_host_put(shost);
10465 out_free_phba:
10466         lpfc_hba_free(phba);
10467         return error;
10468 }
10469
10470 /**
10471  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
10472  * @pdev: pointer to PCI device
10473  *
10474  * This routine is to be called to disattach a device with SLI-3 interface
10475  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10476  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10477  * device to be removed from the PCI subsystem properly.
10478  **/
10479 static void
10480 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
10481 {
10482         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
10483         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10484         struct lpfc_vport **vports;
10485         struct lpfc_hba   *phba = vport->phba;
10486         int i;
10487
10488         spin_lock_irq(&phba->hbalock);
10489         vport->load_flag |= FC_UNLOADING;
10490         spin_unlock_irq(&phba->hbalock);
10491
10492         lpfc_free_sysfs_attr(vport);
10493
10494         /* Release all the vports against this physical port */
10495         vports = lpfc_create_vport_work_array(phba);
10496         if (vports != NULL)
10497                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10498                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10499                                 continue;
10500                         fc_vport_terminate(vports[i]->fc_vport);
10501                 }
10502         lpfc_destroy_vport_work_array(phba, vports);
10503
10504         /* Remove FC host and then SCSI host with the physical port */
10505         fc_remove_host(shost);
10506         scsi_remove_host(shost);
10507
10508         lpfc_cleanup(vport);
10509
10510         /*
10511          * Bring down the SLI Layer. This step disable all interrupts,
10512          * clears the rings, discards all mailbox commands, and resets
10513          * the HBA.
10514          */
10515
10516         /* HBA interrupt will be disabled after this call */
10517         lpfc_sli_hba_down(phba);
10518         /* Stop kthread signal shall trigger work_done one more time */
10519         kthread_stop(phba->worker_thread);
10520         /* Final cleanup of txcmplq and reset the HBA */
10521         lpfc_sli_brdrestart(phba);
10522
10523         kfree(phba->vpi_bmask);
10524         kfree(phba->vpi_ids);
10525
10526         lpfc_stop_hba_timers(phba);
10527         spin_lock_irq(&phba->hbalock);
10528         list_del_init(&vport->listentry);
10529         spin_unlock_irq(&phba->hbalock);
10530
10531         lpfc_debugfs_terminate(vport);
10532
10533         /* Disable SR-IOV if enabled */
10534         if (phba->cfg_sriov_nr_virtfn)
10535                 pci_disable_sriov(pdev);
10536
10537         /* Disable interrupt */
10538         lpfc_sli_disable_intr(phba);
10539
10540         scsi_host_put(shost);
10541
10542         /*
10543          * Call scsi_free before mem_free since scsi bufs are released to their
10544          * corresponding pools here.
10545          */
10546         lpfc_scsi_free(phba);
10547         lpfc_mem_free_all(phba);
10548
10549         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
10550                           phba->hbqslimp.virt, phba->hbqslimp.phys);
10551
10552         /* Free resources associated with SLI2 interface */
10553         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
10554                           phba->slim2p.virt, phba->slim2p.phys);
10555
10556         /* unmap adapter SLIM and Control Registers */
10557         iounmap(phba->ctrl_regs_memmap_p);
10558         iounmap(phba->slim_memmap_p);
10559
10560         lpfc_hba_free(phba);
10561
10562         pci_release_mem_regions(pdev);
10563         pci_disable_device(pdev);
10564 }
10565
10566 /**
10567  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
10568  * @pdev: pointer to PCI device
10569  * @msg: power management message
10570  *
10571  * This routine is to be called from the kernel's PCI subsystem to support
10572  * system Power Management (PM) to device with SLI-3 interface spec. When
10573  * PM invokes this method, it quiesces the device by stopping the driver's
10574  * worker thread for the device, turning off device's interrupt and DMA,
10575  * and bring the device offline. Note that as the driver implements the
10576  * minimum PM requirements to a power-aware driver's PM support for the
10577  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10578  * to the suspend() method call will be treated as SUSPEND and the driver will
10579  * fully reinitialize its device during resume() method call, the driver will
10580  * set device to PCI_D3hot state in PCI config space instead of setting it
10581  * according to the @msg provided by the PM.
10582  *
10583  * Return code
10584  *      0 - driver suspended the device
10585  *      Error otherwise
10586  **/
10587 static int
10588 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
10589 {
10590         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10591         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10592
10593         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10594                         "0473 PCI device Power Management suspend.\n");
10595
10596         /* Bring down the device */
10597         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10598         lpfc_offline(phba);
10599         kthread_stop(phba->worker_thread);
10600
10601         /* Disable interrupt from device */
10602         lpfc_sli_disable_intr(phba);
10603
10604         /* Save device state to PCI config space */
10605         pci_save_state(pdev);
10606         pci_set_power_state(pdev, PCI_D3hot);
10607
10608         return 0;
10609 }
10610
10611 /**
10612  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
10613  * @pdev: pointer to PCI device
10614  *
10615  * This routine is to be called from the kernel's PCI subsystem to support
10616  * system Power Management (PM) to device with SLI-3 interface spec. When PM
10617  * invokes this method, it restores the device's PCI config space state and
10618  * fully reinitializes the device and brings it online. Note that as the
10619  * driver implements the minimum PM requirements to a power-aware driver's
10620  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
10621  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
10622  * driver will fully reinitialize its device during resume() method call,
10623  * the device will be set to PCI_D0 directly in PCI config space before
10624  * restoring the state.
10625  *
10626  * Return code
10627  *      0 - driver suspended the device
10628  *      Error otherwise
10629  **/
10630 static int
10631 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
10632 {
10633         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10634         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10635         uint32_t intr_mode;
10636         int error;
10637
10638         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10639                         "0452 PCI device Power Management resume.\n");
10640
10641         /* Restore device state from PCI config space */
10642         pci_set_power_state(pdev, PCI_D0);
10643         pci_restore_state(pdev);
10644
10645         /*
10646          * As the new kernel behavior of pci_restore_state() API call clears
10647          * device saved_state flag, need to save the restored state again.
10648          */
10649         pci_save_state(pdev);
10650
10651         if (pdev->is_busmaster)
10652                 pci_set_master(pdev);
10653
10654         /* Startup the kernel thread for this host adapter. */
10655         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10656                                         "lpfc_worker_%d", phba->brd_no);
10657         if (IS_ERR(phba->worker_thread)) {
10658                 error = PTR_ERR(phba->worker_thread);
10659                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10660                                 "0434 PM resume failed to start worker "
10661                                 "thread: error=x%x.\n", error);
10662                 return error;
10663         }
10664
10665         /* Configure and enable interrupt */
10666         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10667         if (intr_mode == LPFC_INTR_ERROR) {
10668                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10669                                 "0430 PM resume Failed to enable interrupt\n");
10670                 return -EIO;
10671         } else
10672                 phba->intr_mode = intr_mode;
10673
10674         /* Restart HBA and bring it online */
10675         lpfc_sli_brdrestart(phba);
10676         lpfc_online(phba);
10677
10678         /* Log the current active interrupt mode */
10679         lpfc_log_intr_mode(phba, phba->intr_mode);
10680
10681         return 0;
10682 }
10683
10684 /**
10685  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
10686  * @phba: pointer to lpfc hba data structure.
10687  *
10688  * This routine is called to prepare the SLI3 device for PCI slot recover. It
10689  * aborts all the outstanding SCSI I/Os to the pci device.
10690  **/
10691 static void
10692 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
10693 {
10694         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10695                         "2723 PCI channel I/O abort preparing for recovery\n");
10696
10697         /*
10698          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10699          * and let the SCSI mid-layer to retry them to recover.
10700          */
10701         lpfc_sli_abort_fcp_rings(phba);
10702 }
10703
10704 /**
10705  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
10706  * @phba: pointer to lpfc hba data structure.
10707  *
10708  * This routine is called to prepare the SLI3 device for PCI slot reset. It
10709  * disables the device interrupt and pci device, and aborts the internal FCP
10710  * pending I/Os.
10711  **/
10712 static void
10713 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
10714 {
10715         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10716                         "2710 PCI channel disable preparing for reset\n");
10717
10718         /* Block any management I/Os to the device */
10719         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
10720
10721         /* Block all SCSI devices' I/Os on the host */
10722         lpfc_scsi_dev_block(phba);
10723
10724         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10725         lpfc_sli_flush_fcp_rings(phba);
10726
10727         /* stop all timers */
10728         lpfc_stop_hba_timers(phba);
10729
10730         /* Disable interrupt and pci device */
10731         lpfc_sli_disable_intr(phba);
10732         pci_disable_device(phba->pcidev);
10733 }
10734
10735 /**
10736  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
10737  * @phba: pointer to lpfc hba data structure.
10738  *
10739  * This routine is called to prepare the SLI3 device for PCI slot permanently
10740  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10741  * pending I/Os.
10742  **/
10743 static void
10744 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10745 {
10746         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10747                         "2711 PCI channel permanent disable for failure\n");
10748         /* Block all SCSI devices' I/Os on the host */
10749         lpfc_scsi_dev_block(phba);
10750
10751         /* stop all timers */
10752         lpfc_stop_hba_timers(phba);
10753
10754         /* Clean up all driver's outstanding SCSI I/Os */
10755         lpfc_sli_flush_fcp_rings(phba);
10756 }
10757
10758 /**
10759  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
10760  * @pdev: pointer to PCI device.
10761  * @state: the current PCI connection state.
10762  *
10763  * This routine is called from the PCI subsystem for I/O error handling to
10764  * device with SLI-3 interface spec. This function is called by the PCI
10765  * subsystem after a PCI bus error affecting this device has been detected.
10766  * When this function is invoked, it will need to stop all the I/Os and
10767  * interrupt(s) to the device. Once that is done, it will return
10768  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
10769  * as desired.
10770  *
10771  * Return codes
10772  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
10773  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10774  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10775  **/
10776 static pci_ers_result_t
10777 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
10778 {
10779         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10780         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10781
10782         switch (state) {
10783         case pci_channel_io_normal:
10784                 /* Non-fatal error, prepare for recovery */
10785                 lpfc_sli_prep_dev_for_recover(phba);
10786                 return PCI_ERS_RESULT_CAN_RECOVER;
10787         case pci_channel_io_frozen:
10788                 /* Fatal error, prepare for slot reset */
10789                 lpfc_sli_prep_dev_for_reset(phba);
10790                 return PCI_ERS_RESULT_NEED_RESET;
10791         case pci_channel_io_perm_failure:
10792                 /* Permanent failure, prepare for device down */
10793                 lpfc_sli_prep_dev_for_perm_failure(phba);
10794                 return PCI_ERS_RESULT_DISCONNECT;
10795         default:
10796                 /* Unknown state, prepare and request slot reset */
10797                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10798                                 "0472 Unknown PCI error state: x%x\n", state);
10799                 lpfc_sli_prep_dev_for_reset(phba);
10800                 return PCI_ERS_RESULT_NEED_RESET;
10801         }
10802 }
10803
10804 /**
10805  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10806  * @pdev: pointer to PCI device.
10807  *
10808  * This routine is called from the PCI subsystem for error handling to
10809  * device with SLI-3 interface spec. This is called after PCI bus has been
10810  * reset to restart the PCI card from scratch, as if from a cold-boot.
10811  * During the PCI subsystem error recovery, after driver returns
10812  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10813  * recovery and then call this routine before calling the .resume method
10814  * to recover the device. This function will initialize the HBA device,
10815  * enable the interrupt, but it will just put the HBA to offline state
10816  * without passing any I/O traffic.
10817  *
10818  * Return codes
10819  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10820  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10821  */
10822 static pci_ers_result_t
10823 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10824 {
10825         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10826         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10827         struct lpfc_sli *psli = &phba->sli;
10828         uint32_t intr_mode;
10829
10830         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10831         if (pci_enable_device_mem(pdev)) {
10832                 printk(KERN_ERR "lpfc: Cannot re-enable "
10833                         "PCI device after reset.\n");
10834                 return PCI_ERS_RESULT_DISCONNECT;
10835         }
10836
10837         pci_restore_state(pdev);
10838
10839         /*
10840          * As the new kernel behavior of pci_restore_state() API call clears
10841          * device saved_state flag, need to save the restored state again.
10842          */
10843         pci_save_state(pdev);
10844
10845         if (pdev->is_busmaster)
10846                 pci_set_master(pdev);
10847
10848         spin_lock_irq(&phba->hbalock);
10849         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10850         spin_unlock_irq(&phba->hbalock);
10851
10852         /* Configure and enable interrupt */
10853         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10854         if (intr_mode == LPFC_INTR_ERROR) {
10855                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10856                                 "0427 Cannot re-enable interrupt after "
10857                                 "slot reset.\n");
10858                 return PCI_ERS_RESULT_DISCONNECT;
10859         } else
10860                 phba->intr_mode = intr_mode;
10861
10862         /* Take device offline, it will perform cleanup */
10863         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10864         lpfc_offline(phba);
10865         lpfc_sli_brdrestart(phba);
10866
10867         /* Log the current active interrupt mode */
10868         lpfc_log_intr_mode(phba, phba->intr_mode);
10869
10870         return PCI_ERS_RESULT_RECOVERED;
10871 }
10872
10873 /**
10874  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10875  * @pdev: pointer to PCI device
10876  *
10877  * This routine is called from the PCI subsystem for error handling to device
10878  * with SLI-3 interface spec. It is called when kernel error recovery tells
10879  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10880  * error recovery. After this call, traffic can start to flow from this device
10881  * again.
10882  */
10883 static void
10884 lpfc_io_resume_s3(struct pci_dev *pdev)
10885 {
10886         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10887         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10888
10889         /* Bring device online, it will be no-op for non-fatal error resume */
10890         lpfc_online(phba);
10891
10892         /* Clean up Advanced Error Reporting (AER) if needed */
10893         if (phba->hba_flag & HBA_AER_ENABLED)
10894                 pci_cleanup_aer_uncorrect_error_status(pdev);
10895 }
10896
10897 /**
10898  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10899  * @phba: pointer to lpfc hba data structure.
10900  *
10901  * returns the number of ELS/CT IOCBs to reserve
10902  **/
10903 int
10904 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10905 {
10906         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10907
10908         if (phba->sli_rev == LPFC_SLI_REV4) {
10909                 if (max_xri <= 100)
10910                         return 10;
10911                 else if (max_xri <= 256)
10912                         return 25;
10913                 else if (max_xri <= 512)
10914                         return 50;
10915                 else if (max_xri <= 1024)
10916                         return 100;
10917                 else if (max_xri <= 1536)
10918                         return 150;
10919                 else if (max_xri <= 2048)
10920                         return 200;
10921                 else
10922                         return 250;
10923         } else
10924                 return 0;
10925 }
10926
10927 /**
10928  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
10929  * @phba: pointer to lpfc hba data structure.
10930  *
10931  * returns the number of ELS/CT + NVMET IOCBs to reserve
10932  **/
10933 int
10934 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
10935 {
10936         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
10937
10938         if (phba->nvmet_support)
10939                 max_xri += LPFC_NVMET_BUF_POST;
10940         return max_xri;
10941 }
10942
10943
10944 /**
10945  * lpfc_write_firmware - attempt to write a firmware image to the port
10946  * @fw: pointer to firmware image returned from request_firmware.
10947  * @phba: pointer to lpfc hba data structure.
10948  *
10949  **/
10950 static void
10951 lpfc_write_firmware(const struct firmware *fw, void *context)
10952 {
10953         struct lpfc_hba *phba = (struct lpfc_hba *)context;
10954         char fwrev[FW_REV_STR_SIZE];
10955         struct lpfc_grp_hdr *image;
10956         struct list_head dma_buffer_list;
10957         int i, rc = 0;
10958         struct lpfc_dmabuf *dmabuf, *next;
10959         uint32_t offset = 0, temp_offset = 0;
10960         uint32_t magic_number, ftype, fid, fsize;
10961
10962         /* It can be null in no-wait mode, sanity check */
10963         if (!fw) {
10964                 rc = -ENXIO;
10965                 goto out;
10966         }
10967         image = (struct lpfc_grp_hdr *)fw->data;
10968
10969         magic_number = be32_to_cpu(image->magic_number);
10970         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
10971         fid = bf_get_be32(lpfc_grp_hdr_id, image),
10972         fsize = be32_to_cpu(image->size);
10973
10974         INIT_LIST_HEAD(&dma_buffer_list);
10975         if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 &&
10976              magic_number != LPFC_GROUP_OJECT_MAGIC_G6) ||
10977             ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) {
10978                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10979                                 "3022 Invalid FW image found. "
10980                                 "Magic:%x Type:%x ID:%x Size %d %zd\n",
10981                                 magic_number, ftype, fid, fsize, fw->size);
10982                 rc = -EINVAL;
10983                 goto release_out;
10984         }
10985         lpfc_decode_firmware_rev(phba, fwrev, 1);
10986         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10987                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10988                                 "3023 Updating Firmware, Current Version:%s "
10989                                 "New Version:%s\n",
10990                                 fwrev, image->revision);
10991                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10992                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10993                                          GFP_KERNEL);
10994                         if (!dmabuf) {
10995                                 rc = -ENOMEM;
10996                                 goto release_out;
10997                         }
10998                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10999                                                           SLI4_PAGE_SIZE,
11000                                                           &dmabuf->phys,
11001                                                           GFP_KERNEL);
11002                         if (!dmabuf->virt) {
11003                                 kfree(dmabuf);
11004                                 rc = -ENOMEM;
11005                                 goto release_out;
11006                         }
11007                         list_add_tail(&dmabuf->list, &dma_buffer_list);
11008                 }
11009                 while (offset < fw->size) {
11010                         temp_offset = offset;
11011                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
11012                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
11013                                         memcpy(dmabuf->virt,
11014                                                fw->data + temp_offset,
11015                                                fw->size - temp_offset);
11016                                         temp_offset = fw->size;
11017                                         break;
11018                                 }
11019                                 memcpy(dmabuf->virt, fw->data + temp_offset,
11020                                        SLI4_PAGE_SIZE);
11021                                 temp_offset += SLI4_PAGE_SIZE;
11022                         }
11023                         rc = lpfc_wr_object(phba, &dma_buffer_list,
11024                                     (fw->size - offset), &offset);
11025                         if (rc)
11026                                 goto release_out;
11027                 }
11028                 rc = offset;
11029         }
11030
11031 release_out:
11032         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
11033                 list_del(&dmabuf->list);
11034                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11035                                   dmabuf->virt, dmabuf->phys);
11036                 kfree(dmabuf);
11037         }
11038         release_firmware(fw);
11039 out:
11040         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11041                         "3024 Firmware update done: %d.\n", rc);
11042         return;
11043 }
11044
11045 /**
11046  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11047  * @phba: pointer to lpfc hba data structure.
11048  *
11049  * This routine is called to perform Linux generic firmware upgrade on device
11050  * that supports such feature.
11051  **/
11052 int
11053 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11054 {
11055         uint8_t file_name[ELX_MODEL_NAME_SIZE];
11056         int ret;
11057         const struct firmware *fw;
11058
11059         /* Only supported on SLI4 interface type 2 for now */
11060         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11061             LPFC_SLI_INTF_IF_TYPE_2)
11062                 return -EPERM;
11063
11064         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
11065
11066         if (fw_upgrade == INT_FW_UPGRADE) {
11067                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11068                                         file_name, &phba->pcidev->dev,
11069                                         GFP_KERNEL, (void *)phba,
11070                                         lpfc_write_firmware);
11071         } else if (fw_upgrade == RUN_FW_UPGRADE) {
11072                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
11073                 if (!ret)
11074                         lpfc_write_firmware(fw, (void *)phba);
11075         } else {
11076                 ret = -EINVAL;
11077         }
11078
11079         return ret;
11080 }
11081
11082 /**
11083  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11084  * @pdev: pointer to PCI device
11085  * @pid: pointer to PCI device identifier
11086  *
11087  * This routine is called from the kernel's PCI subsystem to device with
11088  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11089  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11090  * information of the device and driver to see if the driver state that it
11091  * can support this kind of device. If the match is successful, the driver
11092  * core invokes this routine. If this routine determines it can claim the HBA,
11093  * it does all the initialization that it needs to do to handle the HBA
11094  * properly.
11095  *
11096  * Return code
11097  *      0 - driver can claim the device
11098  *      negative value - driver can not claim the device
11099  **/
11100 static int
11101 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11102 {
11103         struct lpfc_hba   *phba;
11104         struct lpfc_vport *vport = NULL;
11105         struct Scsi_Host  *shost = NULL;
11106         int error, cnt;
11107         uint32_t cfg_mode, intr_mode;
11108
11109         /* Allocate memory for HBA structure */
11110         phba = lpfc_hba_alloc(pdev);
11111         if (!phba)
11112                 return -ENOMEM;
11113
11114         /* Perform generic PCI device enabling operation */
11115         error = lpfc_enable_pci_dev(phba);
11116         if (error)
11117                 goto out_free_phba;
11118
11119         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
11120         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11121         if (error)
11122                 goto out_disable_pci_dev;
11123
11124         /* Set up SLI-4 specific device PCI memory space */
11125         error = lpfc_sli4_pci_mem_setup(phba);
11126         if (error) {
11127                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11128                                 "1410 Failed to set up pci memory space.\n");
11129                 goto out_disable_pci_dev;
11130         }
11131
11132         /* Set up SLI-4 Specific device driver resources */
11133         error = lpfc_sli4_driver_resource_setup(phba);
11134         if (error) {
11135                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11136                                 "1412 Failed to set up driver resource.\n");
11137                 goto out_unset_pci_mem_s4;
11138         }
11139
11140         cnt = phba->cfg_iocb_cnt * 1024;
11141         if (phba->nvmet_support)
11142                 cnt += phba->cfg_nvmet_mrq_post * phba->cfg_nvmet_mrq;
11143
11144         /* Initialize and populate the iocb list per host */
11145         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11146                         "2821 initialize iocb list %d total %d\n",
11147                         phba->cfg_iocb_cnt, cnt);
11148         error = lpfc_init_iocb_list(phba, cnt);
11149
11150         if (error) {
11151                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11152                                 "1413 Failed to initialize iocb list.\n");
11153                 goto out_unset_driver_resource_s4;
11154         }
11155
11156         INIT_LIST_HEAD(&phba->active_rrq_list);
11157         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11158
11159         /* Set up common device driver resources */
11160         error = lpfc_setup_driver_resource_phase2(phba);
11161         if (error) {
11162                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11163                                 "1414 Failed to set up driver resource.\n");
11164                 goto out_free_iocb_list;
11165         }
11166
11167         /* Get the default values for Model Name and Description */
11168         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11169
11170         /* Create SCSI host to the physical port */
11171         error = lpfc_create_shost(phba);
11172         if (error) {
11173                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11174                                 "1415 Failed to create scsi host.\n");
11175                 goto out_unset_driver_resource;
11176         }
11177
11178         /* Configure sysfs attributes */
11179         vport = phba->pport;
11180         error = lpfc_alloc_sysfs_attr(vport);
11181         if (error) {
11182                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11183                                 "1416 Failed to allocate sysfs attr\n");
11184                 goto out_destroy_shost;
11185         }
11186
11187         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11188         /* Now, trying to enable interrupt and bring up the device */
11189         cfg_mode = phba->cfg_use_msi;
11190
11191         /* Put device to a known state before enabling interrupt */
11192         lpfc_stop_port(phba);
11193
11194         /* Configure and enable interrupt */
11195         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11196         if (intr_mode == LPFC_INTR_ERROR) {
11197                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11198                                 "0426 Failed to enable interrupt.\n");
11199                 error = -ENODEV;
11200                 goto out_free_sysfs_attr;
11201         }
11202         /* Default to single EQ for non-MSI-X */
11203         if (phba->intr_type != MSIX) {
11204                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11205                         phba->cfg_fcp_io_channel = 1;
11206                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11207                         phba->cfg_nvme_io_channel = 1;
11208                         if (phba->nvmet_support)
11209                                 phba->cfg_nvmet_mrq = 1;
11210                 }
11211                 phba->io_channel_irqs = 1;
11212         }
11213
11214         /* Set up SLI-4 HBA */
11215         if (lpfc_sli4_hba_setup(phba)) {
11216                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11217                                 "1421 Failed to set up hba\n");
11218                 error = -ENODEV;
11219                 goto out_disable_intr;
11220         }
11221
11222         /* Log the current active interrupt mode */
11223         phba->intr_mode = intr_mode;
11224         lpfc_log_intr_mode(phba, intr_mode);
11225
11226         /* Perform post initialization setup */
11227         lpfc_post_init_setup(phba);
11228
11229         /* NVME support in FW earlier in the driver load corrects the
11230          * FC4 type making a check for nvme_support unnecessary.
11231          */
11232         if ((phba->nvmet_support == 0) &&
11233             (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11234                 /* Create NVME binding with nvme_fc_transport. This
11235                  * ensures the vport is initialized.  If the localport
11236                  * create fails, it should not unload the driver to
11237                  * support field issues.
11238                  */
11239                 error = lpfc_nvme_create_localport(vport);
11240                 if (error) {
11241                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11242                                         "6004 NVME registration failed, "
11243                                         "error x%x\n",
11244                                         error);
11245                 }
11246         }
11247
11248         /* check for firmware upgrade or downgrade */
11249         if (phba->cfg_request_firmware_upgrade)
11250                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11251
11252         /* Check if there are static vports to be created. */
11253         lpfc_create_static_vport(phba);
11254         return 0;
11255
11256 out_disable_intr:
11257         lpfc_sli4_disable_intr(phba);
11258 out_free_sysfs_attr:
11259         lpfc_free_sysfs_attr(vport);
11260 out_destroy_shost:
11261         lpfc_destroy_shost(phba);
11262 out_unset_driver_resource:
11263         lpfc_unset_driver_resource_phase2(phba);
11264 out_free_iocb_list:
11265         lpfc_free_iocb_list(phba);
11266 out_unset_driver_resource_s4:
11267         lpfc_sli4_driver_resource_unset(phba);
11268 out_unset_pci_mem_s4:
11269         lpfc_sli4_pci_mem_unset(phba);
11270 out_disable_pci_dev:
11271         lpfc_disable_pci_dev(phba);
11272         if (shost)
11273                 scsi_host_put(shost);
11274 out_free_phba:
11275         lpfc_hba_free(phba);
11276         return error;
11277 }
11278
11279 /**
11280  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11281  * @pdev: pointer to PCI device
11282  *
11283  * This routine is called from the kernel's PCI subsystem to device with
11284  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11285  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11286  * device to be removed from the PCI subsystem properly.
11287  **/
11288 static void
11289 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11290 {
11291         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11292         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11293         struct lpfc_vport **vports;
11294         struct lpfc_hba *phba = vport->phba;
11295         int i;
11296
11297         /* Mark the device unloading flag */
11298         spin_lock_irq(&phba->hbalock);
11299         vport->load_flag |= FC_UNLOADING;
11300         spin_unlock_irq(&phba->hbalock);
11301
11302         /* Free the HBA sysfs attributes */
11303         lpfc_free_sysfs_attr(vport);
11304
11305         /* Release all the vports against this physical port */
11306         vports = lpfc_create_vport_work_array(phba);
11307         if (vports != NULL)
11308                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11309                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11310                                 continue;
11311                         fc_vport_terminate(vports[i]->fc_vport);
11312                 }
11313         lpfc_destroy_vport_work_array(phba, vports);
11314
11315         /* Remove FC host and then SCSI host with the physical port */
11316         fc_remove_host(shost);
11317         scsi_remove_host(shost);
11318
11319         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
11320          * localports are destroyed after to cleanup all transport memory.
11321          */
11322         lpfc_cleanup(vport);
11323         lpfc_nvmet_destroy_targetport(phba);
11324         lpfc_nvme_destroy_localport(vport);
11325
11326         /*
11327          * Bring down the SLI Layer. This step disables all interrupts,
11328          * clears the rings, discards all mailbox commands, and resets
11329          * the HBA FCoE function.
11330          */
11331         lpfc_debugfs_terminate(vport);
11332         lpfc_sli4_hba_unset(phba);
11333
11334         spin_lock_irq(&phba->hbalock);
11335         list_del_init(&vport->listentry);
11336         spin_unlock_irq(&phba->hbalock);
11337
11338         /* Perform scsi free before driver resource_unset since scsi
11339          * buffers are released to their corresponding pools here.
11340          */
11341         lpfc_scsi_free(phba);
11342         lpfc_nvme_free(phba);
11343         lpfc_free_iocb_list(phba);
11344
11345         lpfc_sli4_driver_resource_unset(phba);
11346
11347         /* Unmap adapter Control and Doorbell registers */
11348         lpfc_sli4_pci_mem_unset(phba);
11349
11350         /* Release PCI resources and disable device's PCI function */
11351         scsi_host_put(shost);
11352         lpfc_disable_pci_dev(phba);
11353
11354         /* Finally, free the driver's device data structure */
11355         lpfc_hba_free(phba);
11356
11357         return;
11358 }
11359
11360 /**
11361  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
11362  * @pdev: pointer to PCI device
11363  * @msg: power management message
11364  *
11365  * This routine is called from the kernel's PCI subsystem to support system
11366  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
11367  * this method, it quiesces the device by stopping the driver's worker
11368  * thread for the device, turning off device's interrupt and DMA, and bring
11369  * the device offline. Note that as the driver implements the minimum PM
11370  * requirements to a power-aware driver's PM support for suspend/resume -- all
11371  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
11372  * method call will be treated as SUSPEND and the driver will fully
11373  * reinitialize its device during resume() method call, the driver will set
11374  * device to PCI_D3hot state in PCI config space instead of setting it
11375  * according to the @msg provided by the PM.
11376  *
11377  * Return code
11378  *      0 - driver suspended the device
11379  *      Error otherwise
11380  **/
11381 static int
11382 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
11383 {
11384         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11385         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11386
11387         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11388                         "2843 PCI device Power Management suspend.\n");
11389
11390         /* Bring down the device */
11391         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11392         lpfc_offline(phba);
11393         kthread_stop(phba->worker_thread);
11394
11395         /* Disable interrupt from device */
11396         lpfc_sli4_disable_intr(phba);
11397         lpfc_sli4_queue_destroy(phba);
11398
11399         /* Save device state to PCI config space */
11400         pci_save_state(pdev);
11401         pci_set_power_state(pdev, PCI_D3hot);
11402
11403         return 0;
11404 }
11405
11406 /**
11407  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
11408  * @pdev: pointer to PCI device
11409  *
11410  * This routine is called from the kernel's PCI subsystem to support system
11411  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
11412  * this method, it restores the device's PCI config space state and fully
11413  * reinitializes the device and brings it online. Note that as the driver
11414  * implements the minimum PM requirements to a power-aware driver's PM for
11415  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11416  * to the suspend() method call will be treated as SUSPEND and the driver
11417  * will fully reinitialize its device during resume() method call, the device
11418  * will be set to PCI_D0 directly in PCI config space before restoring the
11419  * state.
11420  *
11421  * Return code
11422  *      0 - driver suspended the device
11423  *      Error otherwise
11424  **/
11425 static int
11426 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
11427 {
11428         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11429         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11430         uint32_t intr_mode;
11431         int error;
11432
11433         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11434                         "0292 PCI device Power Management resume.\n");
11435
11436         /* Restore device state from PCI config space */
11437         pci_set_power_state(pdev, PCI_D0);
11438         pci_restore_state(pdev);
11439
11440         /*
11441          * As the new kernel behavior of pci_restore_state() API call clears
11442          * device saved_state flag, need to save the restored state again.
11443          */
11444         pci_save_state(pdev);
11445
11446         if (pdev->is_busmaster)
11447                 pci_set_master(pdev);
11448
11449          /* Startup the kernel thread for this host adapter. */
11450         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11451                                         "lpfc_worker_%d", phba->brd_no);
11452         if (IS_ERR(phba->worker_thread)) {
11453                 error = PTR_ERR(phba->worker_thread);
11454                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11455                                 "0293 PM resume failed to start worker "
11456                                 "thread: error=x%x.\n", error);
11457                 return error;
11458         }
11459
11460         /* Configure and enable interrupt */
11461         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11462         if (intr_mode == LPFC_INTR_ERROR) {
11463                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11464                                 "0294 PM resume Failed to enable interrupt\n");
11465                 return -EIO;
11466         } else
11467                 phba->intr_mode = intr_mode;
11468
11469         /* Restart HBA and bring it online */
11470         lpfc_sli_brdrestart(phba);
11471         lpfc_online(phba);
11472
11473         /* Log the current active interrupt mode */
11474         lpfc_log_intr_mode(phba, phba->intr_mode);
11475
11476         return 0;
11477 }
11478
11479 /**
11480  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
11481  * @phba: pointer to lpfc hba data structure.
11482  *
11483  * This routine is called to prepare the SLI4 device for PCI slot recover. It
11484  * aborts all the outstanding SCSI I/Os to the pci device.
11485  **/
11486 static void
11487 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
11488 {
11489         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11490                         "2828 PCI channel I/O abort preparing for recovery\n");
11491         /*
11492          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11493          * and let the SCSI mid-layer to retry them to recover.
11494          */
11495         lpfc_sli_abort_fcp_rings(phba);
11496 }
11497
11498 /**
11499  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
11500  * @phba: pointer to lpfc hba data structure.
11501  *
11502  * This routine is called to prepare the SLI4 device for PCI slot reset. It
11503  * disables the device interrupt and pci device, and aborts the internal FCP
11504  * pending I/Os.
11505  **/
11506 static void
11507 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
11508 {
11509         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11510                         "2826 PCI channel disable preparing for reset\n");
11511
11512         /* Block any management I/Os to the device */
11513         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
11514
11515         /* Block all SCSI devices' I/Os on the host */
11516         lpfc_scsi_dev_block(phba);
11517
11518         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11519         lpfc_sli_flush_fcp_rings(phba);
11520
11521         /* stop all timers */
11522         lpfc_stop_hba_timers(phba);
11523
11524         /* Disable interrupt and pci device */
11525         lpfc_sli4_disable_intr(phba);
11526         lpfc_sli4_queue_destroy(phba);
11527         pci_disable_device(phba->pcidev);
11528 }
11529
11530 /**
11531  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
11532  * @phba: pointer to lpfc hba data structure.
11533  *
11534  * This routine is called to prepare the SLI4 device for PCI slot permanently
11535  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11536  * pending I/Os.
11537  **/
11538 static void
11539 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11540 {
11541         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11542                         "2827 PCI channel permanent disable for failure\n");
11543
11544         /* Block all SCSI devices' I/Os on the host */
11545         lpfc_scsi_dev_block(phba);
11546
11547         /* stop all timers */
11548         lpfc_stop_hba_timers(phba);
11549
11550         /* Clean up all driver's outstanding SCSI I/Os */
11551         lpfc_sli_flush_fcp_rings(phba);
11552 }
11553
11554 /**
11555  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
11556  * @pdev: pointer to PCI device.
11557  * @state: the current PCI connection state.
11558  *
11559  * This routine is called from the PCI subsystem for error handling to device
11560  * with SLI-4 interface spec. This function is called by the PCI subsystem
11561  * after a PCI bus error affecting this device has been detected. When this
11562  * function is invoked, it will need to stop all the I/Os and interrupt(s)
11563  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
11564  * for the PCI subsystem to perform proper recovery as desired.
11565  *
11566  * Return codes
11567  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11568  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11569  **/
11570 static pci_ers_result_t
11571 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
11572 {
11573         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11574         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11575
11576         switch (state) {
11577         case pci_channel_io_normal:
11578                 /* Non-fatal error, prepare for recovery */
11579                 lpfc_sli4_prep_dev_for_recover(phba);
11580                 return PCI_ERS_RESULT_CAN_RECOVER;
11581         case pci_channel_io_frozen:
11582                 /* Fatal error, prepare for slot reset */
11583                 lpfc_sli4_prep_dev_for_reset(phba);
11584                 return PCI_ERS_RESULT_NEED_RESET;
11585         case pci_channel_io_perm_failure:
11586                 /* Permanent failure, prepare for device down */
11587                 lpfc_sli4_prep_dev_for_perm_failure(phba);
11588                 return PCI_ERS_RESULT_DISCONNECT;
11589         default:
11590                 /* Unknown state, prepare and request slot reset */
11591                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11592                                 "2825 Unknown PCI error state: x%x\n", state);
11593                 lpfc_sli4_prep_dev_for_reset(phba);
11594                 return PCI_ERS_RESULT_NEED_RESET;
11595         }
11596 }
11597
11598 /**
11599  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
11600  * @pdev: pointer to PCI device.
11601  *
11602  * This routine is called from the PCI subsystem for error handling to device
11603  * with SLI-4 interface spec. It is called after PCI bus has been reset to
11604  * restart the PCI card from scratch, as if from a cold-boot. During the
11605  * PCI subsystem error recovery, after the driver returns
11606  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11607  * recovery and then call this routine before calling the .resume method to
11608  * recover the device. This function will initialize the HBA device, enable
11609  * the interrupt, but it will just put the HBA to offline state without
11610  * passing any I/O traffic.
11611  *
11612  * Return codes
11613  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11614  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11615  */
11616 static pci_ers_result_t
11617 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
11618 {
11619         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11620         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11621         struct lpfc_sli *psli = &phba->sli;
11622         uint32_t intr_mode;
11623
11624         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11625         if (pci_enable_device_mem(pdev)) {
11626                 printk(KERN_ERR "lpfc: Cannot re-enable "
11627                         "PCI device after reset.\n");
11628                 return PCI_ERS_RESULT_DISCONNECT;
11629         }
11630
11631         pci_restore_state(pdev);
11632
11633         /*
11634          * As the new kernel behavior of pci_restore_state() API call clears
11635          * device saved_state flag, need to save the restored state again.
11636          */
11637         pci_save_state(pdev);
11638
11639         if (pdev->is_busmaster)
11640                 pci_set_master(pdev);
11641
11642         spin_lock_irq(&phba->hbalock);
11643         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11644         spin_unlock_irq(&phba->hbalock);
11645
11646         /* Configure and enable interrupt */
11647         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11648         if (intr_mode == LPFC_INTR_ERROR) {
11649                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11650                                 "2824 Cannot re-enable interrupt after "
11651                                 "slot reset.\n");
11652                 return PCI_ERS_RESULT_DISCONNECT;
11653         } else
11654                 phba->intr_mode = intr_mode;
11655
11656         /* Log the current active interrupt mode */
11657         lpfc_log_intr_mode(phba, phba->intr_mode);
11658
11659         return PCI_ERS_RESULT_RECOVERED;
11660 }
11661
11662 /**
11663  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
11664  * @pdev: pointer to PCI device
11665  *
11666  * This routine is called from the PCI subsystem for error handling to device
11667  * with SLI-4 interface spec. It is called when kernel error recovery tells
11668  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11669  * error recovery. After this call, traffic can start to flow from this device
11670  * again.
11671  **/
11672 static void
11673 lpfc_io_resume_s4(struct pci_dev *pdev)
11674 {
11675         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11676         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11677
11678         /*
11679          * In case of slot reset, as function reset is performed through
11680          * mailbox command which needs DMA to be enabled, this operation
11681          * has to be moved to the io resume phase. Taking device offline
11682          * will perform the necessary cleanup.
11683          */
11684         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
11685                 /* Perform device reset */
11686                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11687                 lpfc_offline(phba);
11688                 lpfc_sli_brdrestart(phba);
11689                 /* Bring the device back online */
11690                 lpfc_online(phba);
11691         }
11692
11693         /* Clean up Advanced Error Reporting (AER) if needed */
11694         if (phba->hba_flag & HBA_AER_ENABLED)
11695                 pci_cleanup_aer_uncorrect_error_status(pdev);
11696 }
11697
11698 /**
11699  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
11700  * @pdev: pointer to PCI device
11701  * @pid: pointer to PCI device identifier
11702  *
11703  * This routine is to be registered to the kernel's PCI subsystem. When an
11704  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
11705  * at PCI device-specific information of the device and driver to see if the
11706  * driver state that it can support this kind of device. If the match is
11707  * successful, the driver core invokes this routine. This routine dispatches
11708  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
11709  * do all the initialization that it needs to do to handle the HBA device
11710  * properly.
11711  *
11712  * Return code
11713  *      0 - driver can claim the device
11714  *      negative value - driver can not claim the device
11715  **/
11716 static int
11717 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
11718 {
11719         int rc;
11720         struct lpfc_sli_intf intf;
11721
11722         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
11723                 return -ENODEV;
11724
11725         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
11726             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
11727                 rc = lpfc_pci_probe_one_s4(pdev, pid);
11728         else
11729                 rc = lpfc_pci_probe_one_s3(pdev, pid);
11730
11731         return rc;
11732 }
11733
11734 /**
11735  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
11736  * @pdev: pointer to PCI device
11737  *
11738  * This routine is to be registered to the kernel's PCI subsystem. When an
11739  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
11740  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
11741  * remove routine, which will perform all the necessary cleanup for the
11742  * device to be removed from the PCI subsystem properly.
11743  **/
11744 static void
11745 lpfc_pci_remove_one(struct pci_dev *pdev)
11746 {
11747         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11748         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11749
11750         switch (phba->pci_dev_grp) {
11751         case LPFC_PCI_DEV_LP:
11752                 lpfc_pci_remove_one_s3(pdev);
11753                 break;
11754         case LPFC_PCI_DEV_OC:
11755                 lpfc_pci_remove_one_s4(pdev);
11756                 break;
11757         default:
11758                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11759                                 "1424 Invalid PCI device group: 0x%x\n",
11760                                 phba->pci_dev_grp);
11761                 break;
11762         }
11763         return;
11764 }
11765
11766 /**
11767  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
11768  * @pdev: pointer to PCI device
11769  * @msg: power management message
11770  *
11771  * This routine is to be registered to the kernel's PCI subsystem to support
11772  * system Power Management (PM). When PM invokes this method, it dispatches
11773  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
11774  * suspend the device.
11775  *
11776  * Return code
11777  *      0 - driver suspended the device
11778  *      Error otherwise
11779  **/
11780 static int
11781 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
11782 {
11783         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11784         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11785         int rc = -ENODEV;
11786
11787         switch (phba->pci_dev_grp) {
11788         case LPFC_PCI_DEV_LP:
11789                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
11790                 break;
11791         case LPFC_PCI_DEV_OC:
11792                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
11793                 break;
11794         default:
11795                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11796                                 "1425 Invalid PCI device group: 0x%x\n",
11797                                 phba->pci_dev_grp);
11798                 break;
11799         }
11800         return rc;
11801 }
11802
11803 /**
11804  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
11805  * @pdev: pointer to PCI device
11806  *
11807  * This routine is to be registered to the kernel's PCI subsystem to support
11808  * system Power Management (PM). When PM invokes this method, it dispatches
11809  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
11810  * resume the device.
11811  *
11812  * Return code
11813  *      0 - driver suspended the device
11814  *      Error otherwise
11815  **/
11816 static int
11817 lpfc_pci_resume_one(struct pci_dev *pdev)
11818 {
11819         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11820         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11821         int rc = -ENODEV;
11822
11823         switch (phba->pci_dev_grp) {
11824         case LPFC_PCI_DEV_LP:
11825                 rc = lpfc_pci_resume_one_s3(pdev);
11826                 break;
11827         case LPFC_PCI_DEV_OC:
11828                 rc = lpfc_pci_resume_one_s4(pdev);
11829                 break;
11830         default:
11831                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11832                                 "1426 Invalid PCI device group: 0x%x\n",
11833                                 phba->pci_dev_grp);
11834                 break;
11835         }
11836         return rc;
11837 }
11838
11839 /**
11840  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11841  * @pdev: pointer to PCI device.
11842  * @state: the current PCI connection state.
11843  *
11844  * This routine is registered to the PCI subsystem for error handling. This
11845  * function is called by the PCI subsystem after a PCI bus error affecting
11846  * this device has been detected. When this routine is invoked, it dispatches
11847  * the action to the proper SLI-3 or SLI-4 device error detected handling
11848  * routine, which will perform the proper error detected operation.
11849  *
11850  * Return codes
11851  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11852  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11853  **/
11854 static pci_ers_result_t
11855 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11856 {
11857         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11858         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11859         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11860
11861         switch (phba->pci_dev_grp) {
11862         case LPFC_PCI_DEV_LP:
11863                 rc = lpfc_io_error_detected_s3(pdev, state);
11864                 break;
11865         case LPFC_PCI_DEV_OC:
11866                 rc = lpfc_io_error_detected_s4(pdev, state);
11867                 break;
11868         default:
11869                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11870                                 "1427 Invalid PCI device group: 0x%x\n",
11871                                 phba->pci_dev_grp);
11872                 break;
11873         }
11874         return rc;
11875 }
11876
11877 /**
11878  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11879  * @pdev: pointer to PCI device.
11880  *
11881  * This routine is registered to the PCI subsystem for error handling. This
11882  * function is called after PCI bus has been reset to restart the PCI card
11883  * from scratch, as if from a cold-boot. When this routine is invoked, it
11884  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11885  * routine, which will perform the proper device reset.
11886  *
11887  * Return codes
11888  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11889  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11890  **/
11891 static pci_ers_result_t
11892 lpfc_io_slot_reset(struct pci_dev *pdev)
11893 {
11894         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11895         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11896         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11897
11898         switch (phba->pci_dev_grp) {
11899         case LPFC_PCI_DEV_LP:
11900                 rc = lpfc_io_slot_reset_s3(pdev);
11901                 break;
11902         case LPFC_PCI_DEV_OC:
11903                 rc = lpfc_io_slot_reset_s4(pdev);
11904                 break;
11905         default:
11906                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11907                                 "1428 Invalid PCI device group: 0x%x\n",
11908                                 phba->pci_dev_grp);
11909                 break;
11910         }
11911         return rc;
11912 }
11913
11914 /**
11915  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11916  * @pdev: pointer to PCI device
11917  *
11918  * This routine is registered to the PCI subsystem for error handling. It
11919  * is called when kernel error recovery tells the lpfc driver that it is
11920  * OK to resume normal PCI operation after PCI bus error recovery. When
11921  * this routine is invoked, it dispatches the action to the proper SLI-3
11922  * or SLI-4 device io_resume routine, which will resume the device operation.
11923  **/
11924 static void
11925 lpfc_io_resume(struct pci_dev *pdev)
11926 {
11927         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11928         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11929
11930         switch (phba->pci_dev_grp) {
11931         case LPFC_PCI_DEV_LP:
11932                 lpfc_io_resume_s3(pdev);
11933                 break;
11934         case LPFC_PCI_DEV_OC:
11935                 lpfc_io_resume_s4(pdev);
11936                 break;
11937         default:
11938                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11939                                 "1429 Invalid PCI device group: 0x%x\n",
11940                                 phba->pci_dev_grp);
11941                 break;
11942         }
11943         return;
11944 }
11945
11946 /**
11947  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11948  * @phba: pointer to lpfc hba data structure.
11949  *
11950  * This routine checks to see if OAS is supported for this adapter. If
11951  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
11952  * the enable oas flag is cleared and the pool created for OAS device data
11953  * is destroyed.
11954  *
11955  **/
11956 void
11957 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11958 {
11959
11960         if (!phba->cfg_EnableXLane)
11961                 return;
11962
11963         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11964                 phba->cfg_fof = 1;
11965         } else {
11966                 phba->cfg_fof = 0;
11967                 if (phba->device_data_mem_pool)
11968                         mempool_destroy(phba->device_data_mem_pool);
11969                 phba->device_data_mem_pool = NULL;
11970         }
11971
11972         return;
11973 }
11974
11975 /**
11976  * lpfc_fof_queue_setup - Set up all the fof queues
11977  * @phba: pointer to lpfc hba data structure.
11978  *
11979  * This routine is invoked to set up all the fof queues for the FC HBA
11980  * operation.
11981  *
11982  * Return codes
11983  *      0 - successful
11984  *      -ENOMEM - No available memory
11985  **/
11986 int
11987 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11988 {
11989         struct lpfc_sli_ring *pring;
11990         int rc;
11991
11992         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11993         if (rc)
11994                 return -ENOMEM;
11995
11996         if (phba->cfg_fof) {
11997
11998                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11999                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
12000                 if (rc)
12001                         goto out_oas_cq;
12002
12003                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
12004                                     phba->sli4_hba.oas_cq, LPFC_FCP);
12005                 if (rc)
12006                         goto out_oas_wq;
12007
12008                 /* Bind this CQ/WQ to the NVME ring */
12009                 pring = phba->sli4_hba.oas_wq->pring;
12010                 pring->sli.sli4.wqp =
12011                         (void *)phba->sli4_hba.oas_wq;
12012                 phba->sli4_hba.oas_cq->pring = pring;
12013         }
12014
12015         return 0;
12016
12017 out_oas_wq:
12018         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
12019 out_oas_cq:
12020         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
12021         return rc;
12022
12023 }
12024
12025 /**
12026  * lpfc_fof_queue_create - Create all the fof queues
12027  * @phba: pointer to lpfc hba data structure.
12028  *
12029  * This routine is invoked to allocate all the fof queues for the FC HBA
12030  * operation. For each SLI4 queue type, the parameters such as queue entry
12031  * count (queue depth) shall be taken from the module parameter. For now,
12032  * we just use some constant number as place holder.
12033  *
12034  * Return codes
12035  *      0 - successful
12036  *      -ENOMEM - No availble memory
12037  *      -EIO - The mailbox failed to complete successfully.
12038  **/
12039 int
12040 lpfc_fof_queue_create(struct lpfc_hba *phba)
12041 {
12042         struct lpfc_queue *qdesc;
12043         uint32_t wqesize;
12044
12045         /* Create FOF EQ */
12046         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
12047                                       phba->sli4_hba.eq_ecount);
12048         if (!qdesc)
12049                 goto out_error;
12050
12051         phba->sli4_hba.fof_eq = qdesc;
12052
12053         if (phba->cfg_fof) {
12054
12055                 /* Create OAS CQ */
12056                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
12057                                                       phba->sli4_hba.cq_ecount);
12058                 if (!qdesc)
12059                         goto out_error;
12060
12061                 phba->sli4_hba.oas_cq = qdesc;
12062
12063                 /* Create OAS WQ */
12064                 wqesize = (phba->fcp_embed_io) ?
12065                                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12066                 qdesc = lpfc_sli4_queue_alloc(phba, wqesize,
12067                                               phba->sli4_hba.wq_ecount);
12068
12069                 if (!qdesc)
12070                         goto out_error;
12071
12072                 phba->sli4_hba.oas_wq = qdesc;
12073                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12074
12075         }
12076         return 0;
12077
12078 out_error:
12079         lpfc_fof_queue_destroy(phba);
12080         return -ENOMEM;
12081 }
12082
12083 /**
12084  * lpfc_fof_queue_destroy - Destroy all the fof queues
12085  * @phba: pointer to lpfc hba data structure.
12086  *
12087  * This routine is invoked to release all the SLI4 queues with the FC HBA
12088  * operation.
12089  *
12090  * Return codes
12091  *      0 - successful
12092  **/
12093 int
12094 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12095 {
12096         /* Release FOF Event queue */
12097         if (phba->sli4_hba.fof_eq != NULL) {
12098                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12099                 phba->sli4_hba.fof_eq = NULL;
12100         }
12101
12102         /* Release OAS Completion queue */
12103         if (phba->sli4_hba.oas_cq != NULL) {
12104                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12105                 phba->sli4_hba.oas_cq = NULL;
12106         }
12107
12108         /* Release OAS Work queue */
12109         if (phba->sli4_hba.oas_wq != NULL) {
12110                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12111                 phba->sli4_hba.oas_wq = NULL;
12112         }
12113         return 0;
12114 }
12115
12116 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12117
12118 static const struct pci_error_handlers lpfc_err_handler = {
12119         .error_detected = lpfc_io_error_detected,
12120         .slot_reset = lpfc_io_slot_reset,
12121         .resume = lpfc_io_resume,
12122 };
12123
12124 static struct pci_driver lpfc_driver = {
12125         .name           = LPFC_DRIVER_NAME,
12126         .id_table       = lpfc_id_table,
12127         .probe          = lpfc_pci_probe_one,
12128         .remove         = lpfc_pci_remove_one,
12129         .shutdown       = lpfc_pci_remove_one,
12130         .suspend        = lpfc_pci_suspend_one,
12131         .resume         = lpfc_pci_resume_one,
12132         .err_handler    = &lpfc_err_handler,
12133 };
12134
12135 static const struct file_operations lpfc_mgmt_fop = {
12136         .owner = THIS_MODULE,
12137 };
12138
12139 static struct miscdevice lpfc_mgmt_dev = {
12140         .minor = MISC_DYNAMIC_MINOR,
12141         .name = "lpfcmgmt",
12142         .fops = &lpfc_mgmt_fop,
12143 };
12144
12145 /**
12146  * lpfc_init - lpfc module initialization routine
12147  *
12148  * This routine is to be invoked when the lpfc module is loaded into the
12149  * kernel. The special kernel macro module_init() is used to indicate the
12150  * role of this routine to the kernel as lpfc module entry point.
12151  *
12152  * Return codes
12153  *   0 - successful
12154  *   -ENOMEM - FC attach transport failed
12155  *   all others - failed
12156  */
12157 static int __init
12158 lpfc_init(void)
12159 {
12160         int error = 0;
12161
12162         printk(LPFC_MODULE_DESC "\n");
12163         printk(LPFC_COPYRIGHT "\n");
12164
12165         error = misc_register(&lpfc_mgmt_dev);
12166         if (error)
12167                 printk(KERN_ERR "Could not register lpfcmgmt device, "
12168                         "misc_register returned with status %d", error);
12169
12170         lpfc_transport_functions.vport_create = lpfc_vport_create;
12171         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12172         lpfc_transport_template =
12173                                 fc_attach_transport(&lpfc_transport_functions);
12174         if (lpfc_transport_template == NULL)
12175                 return -ENOMEM;
12176         lpfc_vport_transport_template =
12177                 fc_attach_transport(&lpfc_vport_transport_functions);
12178         if (lpfc_vport_transport_template == NULL) {
12179                 fc_release_transport(lpfc_transport_template);
12180                 return -ENOMEM;
12181         }
12182
12183         /* Initialize in case vector mapping is needed */
12184         lpfc_used_cpu = NULL;
12185         lpfc_present_cpu = num_present_cpus();
12186
12187         error = pci_register_driver(&lpfc_driver);
12188         if (error) {
12189                 fc_release_transport(lpfc_transport_template);
12190                 fc_release_transport(lpfc_vport_transport_template);
12191         }
12192
12193         return error;
12194 }
12195
12196 /**
12197  * lpfc_exit - lpfc module removal routine
12198  *
12199  * This routine is invoked when the lpfc module is removed from the kernel.
12200  * The special kernel macro module_exit() is used to indicate the role of
12201  * this routine to the kernel as lpfc module exit point.
12202  */
12203 static void __exit
12204 lpfc_exit(void)
12205 {
12206         misc_deregister(&lpfc_mgmt_dev);
12207         pci_unregister_driver(&lpfc_driver);
12208         fc_release_transport(lpfc_transport_template);
12209         fc_release_transport(lpfc_vport_transport_template);
12210         if (_dump_buf_data) {
12211                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
12212                                 "_dump_buf_data at 0x%p\n",
12213                                 (1L << _dump_buf_data_order), _dump_buf_data);
12214                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12215         }
12216
12217         if (_dump_buf_dif) {
12218                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
12219                                 "_dump_buf_dif at 0x%p\n",
12220                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
12221                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12222         }
12223         kfree(lpfc_used_cpu);
12224         idr_destroy(&lpfc_hba_index);
12225 }
12226
12227 module_init(lpfc_init);
12228 module_exit(lpfc_exit);
12229 MODULE_LICENSE("GPL");
12230 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12231 MODULE_AUTHOR("Broadcom");
12232 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);