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         if (phba->sli_rev < LPFC_SLI_REV4) {
3606                 /* Reset the port first */
3607                 lpfc_sli_brdrestart(phba);
3608                 rc = lpfc_sli_chipset_init(phba);
3609                 if (rc)
3610                         return (uint64_t)-1;
3611         }
3612
3613         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3614                                                 GFP_KERNEL);
3615         if (!mboxq)
3616                 return (uint64_t)-1;
3617
3618         /* First get WWN of HBA instance */
3619         lpfc_read_nv(phba, mboxq);
3620         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3621         if (rc != MBX_SUCCESS) {
3622                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3623                                 "6019 Mailbox failed , mbxCmd x%x "
3624                                 "READ_NV, mbxStatus x%x\n",
3625                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
3626                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
3627                 mempool_free(mboxq, phba->mbox_mem_pool);
3628                 return (uint64_t) -1;
3629         }
3630         mb = &mboxq->u.mb;
3631         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
3632         /* wwn is WWPN of HBA instance */
3633         mempool_free(mboxq, phba->mbox_mem_pool);
3634         if (phba->sli_rev == LPFC_SLI_REV4)
3635                 return be64_to_cpu(wwn);
3636         else
3637                 return (((wwn & 0xffffffff00000000) >> 32) |
3638                         ((wwn & 0x00000000ffffffff) << 32));
3639
3640 }
3641
3642 /**
3643  * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping
3644  * @phba: pointer to lpfc hba data structure.
3645  *
3646  * This routine first calculates the sizes of the current els and allocated
3647  * scsi sgl lists, and then goes through all sgls to updates the physical
3648  * XRIs assigned due to port function reset. During port initialization, the
3649  * current els and allocated scsi sgl lists are 0s.
3650  *
3651  * Return codes
3652  *   0 - successful (for now, it always returns 0)
3653  **/
3654 int
3655 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
3656 {
3657         struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3658         uint16_t i, lxri, els_xri_cnt;
3659         uint16_t nvme_xri_cnt, nvme_xri_max;
3660         LIST_HEAD(nvme_sgl_list);
3661         int rc;
3662
3663         phba->total_nvme_bufs = 0;
3664
3665         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3666                 return 0;
3667         /*
3668          * update on pci function's allocated nvme xri-sgl list
3669          */
3670
3671         /* maximum number of xris available for nvme buffers */
3672         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3673         nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3674         phba->sli4_hba.nvme_xri_max = nvme_xri_max;
3675         phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max;
3676
3677         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3678                         "6074 Current allocated NVME xri-sgl count:%d, "
3679                         "maximum  NVME xri count:%d\n",
3680                         phba->sli4_hba.nvme_xri_cnt,
3681                         phba->sli4_hba.nvme_xri_max);
3682
3683         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3684         spin_lock(&phba->nvme_buf_list_put_lock);
3685         list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
3686         list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
3687         spin_unlock(&phba->nvme_buf_list_put_lock);
3688         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3689
3690         if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) {
3691                 /* max nvme xri shrunk below the allocated nvme buffers */
3692                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3693                 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt -
3694                                         phba->sli4_hba.nvme_xri_max;
3695                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3696                 /* release the extra allocated nvme buffers */
3697                 for (i = 0; i < nvme_xri_cnt; i++) {
3698                         list_remove_head(&nvme_sgl_list, lpfc_ncmd,
3699                                          struct lpfc_nvme_buf, list);
3700                         if (lpfc_ncmd) {
3701                                 pci_pool_free(phba->lpfc_sg_dma_buf_pool,
3702                                               lpfc_ncmd->data,
3703                                               lpfc_ncmd->dma_handle);
3704                                 kfree(lpfc_ncmd);
3705                         }
3706                 }
3707                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3708                 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt;
3709                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3710         }
3711
3712         /* update xris associated to remaining allocated nvme buffers */
3713         lpfc_ncmd = NULL;
3714         lpfc_ncmd_next = NULL;
3715         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3716                                  &nvme_sgl_list, list) {
3717                 lxri = lpfc_sli4_next_xritag(phba);
3718                 if (lxri == NO_XRI) {
3719                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3720                                         "6075 Failed to allocate xri for "
3721                                         "nvme buffer\n");
3722                         rc = -ENOMEM;
3723                         goto out_free_mem;
3724                 }
3725                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
3726                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3727         }
3728         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3729         spin_lock(&phba->nvme_buf_list_put_lock);
3730         list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
3731         INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
3732         spin_unlock(&phba->nvme_buf_list_put_lock);
3733         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3734         return 0;
3735
3736 out_free_mem:
3737         lpfc_nvme_free(phba);
3738         return rc;
3739 }
3740
3741 /**
3742  * lpfc_create_port - Create an FC port
3743  * @phba: pointer to lpfc hba data structure.
3744  * @instance: a unique integer ID to this FC port.
3745  * @dev: pointer to the device data structure.
3746  *
3747  * This routine creates a FC port for the upper layer protocol. The FC port
3748  * can be created on top of either a physical port or a virtual port provided
3749  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3750  * and associates the FC port created before adding the shost into the SCSI
3751  * layer.
3752  *
3753  * Return codes
3754  *   @vport - pointer to the virtual N_Port data structure.
3755  *   NULL - port create failed.
3756  **/
3757 struct lpfc_vport *
3758 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3759 {
3760         struct lpfc_vport *vport;
3761         struct Scsi_Host  *shost = NULL;
3762         int error = 0;
3763         int i;
3764         uint64_t wwn;
3765         bool use_no_reset_hba = false;
3766
3767         wwn = lpfc_get_wwpn(phba);
3768
3769         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
3770                 if (wwn == lpfc_no_hba_reset[i]) {
3771                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3772                                         "6020 Setting use_no_reset port=%llx\n",
3773                                         wwn);
3774                         use_no_reset_hba = true;
3775                         break;
3776                 }
3777         }
3778
3779         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
3780                 if (dev != &phba->pcidev->dev) {
3781                         shost = scsi_host_alloc(&lpfc_vport_template,
3782                                                 sizeof(struct lpfc_vport));
3783                 } else {
3784                         if (!use_no_reset_hba)
3785                                 shost = scsi_host_alloc(&lpfc_template,
3786                                                 sizeof(struct lpfc_vport));
3787                         else
3788                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
3789                                                 sizeof(struct lpfc_vport));
3790                 }
3791         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3792                 shost = scsi_host_alloc(&lpfc_template_nvme,
3793                                         sizeof(struct lpfc_vport));
3794         }
3795         if (!shost)
3796                 goto out;
3797
3798         vport = (struct lpfc_vport *) shost->hostdata;
3799         vport->phba = phba;
3800         vport->load_flag |= FC_LOADING;
3801         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3802         vport->fc_rscn_flush = 0;
3803         lpfc_get_vport_cfgparam(vport);
3804
3805         shost->unique_id = instance;
3806         shost->max_id = LPFC_MAX_TARGET;
3807         shost->max_lun = vport->cfg_max_luns;
3808         shost->this_id = -1;
3809         shost->max_cmd_len = 16;
3810         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3811         if (phba->sli_rev == LPFC_SLI_REV4) {
3812                 shost->dma_boundary =
3813                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3814                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3815         }
3816
3817         /*
3818          * Set initial can_queue value since 0 is no longer supported and
3819          * scsi_add_host will fail. This will be adjusted later based on the
3820          * max xri value determined in hba setup.
3821          */
3822         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3823         if (dev != &phba->pcidev->dev) {
3824                 shost->transportt = lpfc_vport_transport_template;
3825                 vport->port_type = LPFC_NPIV_PORT;
3826         } else {
3827                 shost->transportt = lpfc_transport_template;
3828                 vport->port_type = LPFC_PHYSICAL_PORT;
3829         }
3830
3831         /* Initialize all internally managed lists. */
3832         INIT_LIST_HEAD(&vport->fc_nodes);
3833         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3834         spin_lock_init(&vport->work_port_lock);
3835
3836         setup_timer(&vport->fc_disctmo, lpfc_disc_timeout,
3837                         (unsigned long)vport);
3838
3839         setup_timer(&vport->els_tmofunc, lpfc_els_timeout,
3840                         (unsigned long)vport);
3841
3842         setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo,
3843                         (unsigned long)vport);
3844
3845         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3846         if (error)
3847                 goto out_put_shost;
3848
3849         spin_lock_irq(&phba->hbalock);
3850         list_add_tail(&vport->listentry, &phba->port_list);
3851         spin_unlock_irq(&phba->hbalock);
3852         return vport;
3853
3854 out_put_shost:
3855         scsi_host_put(shost);
3856 out:
3857         return NULL;
3858 }
3859
3860 /**
3861  * destroy_port -  destroy an FC port
3862  * @vport: pointer to an lpfc virtual N_Port data structure.
3863  *
3864  * This routine destroys a FC port from the upper layer protocol. All the
3865  * resources associated with the port are released.
3866  **/
3867 void
3868 destroy_port(struct lpfc_vport *vport)
3869 {
3870         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3871         struct lpfc_hba  *phba = vport->phba;
3872
3873         lpfc_debugfs_terminate(vport);
3874         fc_remove_host(shost);
3875         scsi_remove_host(shost);
3876
3877         spin_lock_irq(&phba->hbalock);
3878         list_del_init(&vport->listentry);
3879         spin_unlock_irq(&phba->hbalock);
3880
3881         lpfc_cleanup(vport);
3882         return;
3883 }
3884
3885 /**
3886  * lpfc_get_instance - Get a unique integer ID
3887  *
3888  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3889  * uses the kernel idr facility to perform the task.
3890  *
3891  * Return codes:
3892  *   instance - a unique integer ID allocated as the new instance.
3893  *   -1 - lpfc get instance failed.
3894  **/
3895 int
3896 lpfc_get_instance(void)
3897 {
3898         int ret;
3899
3900         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3901         return ret < 0 ? -1 : ret;
3902 }
3903
3904 /**
3905  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3906  * @shost: pointer to SCSI host data structure.
3907  * @time: elapsed time of the scan in jiffies.
3908  *
3909  * This routine is called by the SCSI layer with a SCSI host to determine
3910  * whether the scan host is finished.
3911  *
3912  * Note: there is no scan_start function as adapter initialization will have
3913  * asynchronously kicked off the link initialization.
3914  *
3915  * Return codes
3916  *   0 - SCSI host scan is not over yet.
3917  *   1 - SCSI host scan is over.
3918  **/
3919 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3920 {
3921         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3922         struct lpfc_hba   *phba = vport->phba;
3923         int stat = 0;
3924
3925         spin_lock_irq(shost->host_lock);
3926
3927         if (vport->load_flag & FC_UNLOADING) {
3928                 stat = 1;
3929                 goto finished;
3930         }
3931         if (time >= msecs_to_jiffies(30 * 1000)) {
3932                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3933                                 "0461 Scanning longer than 30 "
3934                                 "seconds.  Continuing initialization\n");
3935                 stat = 1;
3936                 goto finished;
3937         }
3938         if (time >= msecs_to_jiffies(15 * 1000) &&
3939             phba->link_state <= LPFC_LINK_DOWN) {
3940                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3941                                 "0465 Link down longer than 15 "
3942                                 "seconds.  Continuing initialization\n");
3943                 stat = 1;
3944                 goto finished;
3945         }
3946
3947         if (vport->port_state != LPFC_VPORT_READY)
3948                 goto finished;
3949         if (vport->num_disc_nodes || vport->fc_prli_sent)
3950                 goto finished;
3951         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3952                 goto finished;
3953         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3954                 goto finished;
3955
3956         stat = 1;
3957
3958 finished:
3959         spin_unlock_irq(shost->host_lock);
3960         return stat;
3961 }
3962
3963 /**
3964  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3965  * @shost: pointer to SCSI host data structure.
3966  *
3967  * This routine initializes a given SCSI host attributes on a FC port. The
3968  * SCSI host can be either on top of a physical port or a virtual port.
3969  **/
3970 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3971 {
3972         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3973         struct lpfc_hba   *phba = vport->phba;
3974         /*
3975          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3976          */
3977
3978         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3979         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3980         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3981
3982         memset(fc_host_supported_fc4s(shost), 0,
3983                sizeof(fc_host_supported_fc4s(shost)));
3984         fc_host_supported_fc4s(shost)[2] = 1;
3985         fc_host_supported_fc4s(shost)[7] = 1;
3986
3987         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3988                                  sizeof fc_host_symbolic_name(shost));
3989
3990         fc_host_supported_speeds(shost) = 0;
3991         if (phba->lmt & LMT_32Gb)
3992                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3993         if (phba->lmt & LMT_16Gb)
3994                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3995         if (phba->lmt & LMT_10Gb)
3996                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3997         if (phba->lmt & LMT_8Gb)
3998                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3999         if (phba->lmt & LMT_4Gb)
4000                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4001         if (phba->lmt & LMT_2Gb)
4002                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4003         if (phba->lmt & LMT_1Gb)
4004                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4005
4006         fc_host_maxframe_size(shost) =
4007                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4008                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4009
4010         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4011
4012         /* This value is also unchanging */
4013         memset(fc_host_active_fc4s(shost), 0,
4014                sizeof(fc_host_active_fc4s(shost)));
4015         fc_host_active_fc4s(shost)[2] = 1;
4016         fc_host_active_fc4s(shost)[7] = 1;
4017
4018         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4019         spin_lock_irq(shost->host_lock);
4020         vport->load_flag &= ~FC_LOADING;
4021         spin_unlock_irq(shost->host_lock);
4022 }
4023
4024 /**
4025  * lpfc_stop_port_s3 - Stop SLI3 device port
4026  * @phba: pointer to lpfc hba data structure.
4027  *
4028  * This routine is invoked to stop an SLI3 device port, it stops the device
4029  * from generating interrupts and stops the device driver's timers for the
4030  * device.
4031  **/
4032 static void
4033 lpfc_stop_port_s3(struct lpfc_hba *phba)
4034 {
4035         /* Clear all interrupt enable conditions */
4036         writel(0, phba->HCregaddr);
4037         readl(phba->HCregaddr); /* flush */
4038         /* Clear all pending interrupts */
4039         writel(0xffffffff, phba->HAregaddr);
4040         readl(phba->HAregaddr); /* flush */
4041
4042         /* Reset some HBA SLI setup states */
4043         lpfc_stop_hba_timers(phba);
4044         phba->pport->work_port_events = 0;
4045 }
4046
4047 /**
4048  * lpfc_stop_port_s4 - Stop SLI4 device port
4049  * @phba: pointer to lpfc hba data structure.
4050  *
4051  * This routine is invoked to stop an SLI4 device port, it stops the device
4052  * from generating interrupts and stops the device driver's timers for the
4053  * device.
4054  **/
4055 static void
4056 lpfc_stop_port_s4(struct lpfc_hba *phba)
4057 {
4058         /* Reset some HBA SLI4 setup states */
4059         lpfc_stop_hba_timers(phba);
4060         phba->pport->work_port_events = 0;
4061         phba->sli4_hba.intr_enable = 0;
4062 }
4063
4064 /**
4065  * lpfc_stop_port - Wrapper function for stopping hba port
4066  * @phba: Pointer to HBA context object.
4067  *
4068  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4069  * the API jump table function pointer from the lpfc_hba struct.
4070  **/
4071 void
4072 lpfc_stop_port(struct lpfc_hba *phba)
4073 {
4074         phba->lpfc_stop_port(phba);
4075 }
4076
4077 /**
4078  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4079  * @phba: Pointer to hba for which this call is being executed.
4080  *
4081  * This routine starts the timer waiting for the FCF rediscovery to complete.
4082  **/
4083 void
4084 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4085 {
4086         unsigned long fcf_redisc_wait_tmo =
4087                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4088         /* Start fcf rediscovery wait period timer */
4089         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4090         spin_lock_irq(&phba->hbalock);
4091         /* Allow action to new fcf asynchronous event */
4092         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4093         /* Mark the FCF rediscovery pending state */
4094         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4095         spin_unlock_irq(&phba->hbalock);
4096 }
4097
4098 /**
4099  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4100  * @ptr: Map to lpfc_hba data structure pointer.
4101  *
4102  * This routine is invoked when waiting for FCF table rediscover has been
4103  * timed out. If new FCF record(s) has (have) been discovered during the
4104  * wait period, a new FCF event shall be added to the FCOE async event
4105  * list, and then worker thread shall be waked up for processing from the
4106  * worker thread context.
4107  **/
4108 static void
4109 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
4110 {
4111         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
4112
4113         /* Don't send FCF rediscovery event if timer cancelled */
4114         spin_lock_irq(&phba->hbalock);
4115         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4116                 spin_unlock_irq(&phba->hbalock);
4117                 return;
4118         }
4119         /* Clear FCF rediscovery timer pending flag */
4120         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4121         /* FCF rediscovery event to worker thread */
4122         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4123         spin_unlock_irq(&phba->hbalock);
4124         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4125                         "2776 FCF rediscover quiescent timer expired\n");
4126         /* wake up worker thread */
4127         lpfc_worker_wake_up(phba);
4128 }
4129
4130 /**
4131  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4132  * @phba: pointer to lpfc hba data structure.
4133  * @acqe_link: pointer to the async link completion queue entry.
4134  *
4135  * This routine is to parse the SLI4 link-attention link fault code and
4136  * translate it into the base driver's read link attention mailbox command
4137  * status.
4138  *
4139  * Return: Link-attention status in terms of base driver's coding.
4140  **/
4141 static uint16_t
4142 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4143                            struct lpfc_acqe_link *acqe_link)
4144 {
4145         uint16_t latt_fault;
4146
4147         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4148         case LPFC_ASYNC_LINK_FAULT_NONE:
4149         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4150         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4151                 latt_fault = 0;
4152                 break;
4153         default:
4154                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4155                                 "0398 Invalid link fault code: x%x\n",
4156                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4157                 latt_fault = MBXERR_ERROR;
4158                 break;
4159         }
4160         return latt_fault;
4161 }
4162
4163 /**
4164  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4165  * @phba: pointer to lpfc hba data structure.
4166  * @acqe_link: pointer to the async link completion queue entry.
4167  *
4168  * This routine is to parse the SLI4 link attention type and translate it
4169  * into the base driver's link attention type coding.
4170  *
4171  * Return: Link attention type in terms of base driver's coding.
4172  **/
4173 static uint8_t
4174 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4175                           struct lpfc_acqe_link *acqe_link)
4176 {
4177         uint8_t att_type;
4178
4179         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4180         case LPFC_ASYNC_LINK_STATUS_DOWN:
4181         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4182                 att_type = LPFC_ATT_LINK_DOWN;
4183                 break;
4184         case LPFC_ASYNC_LINK_STATUS_UP:
4185                 /* Ignore physical link up events - wait for logical link up */
4186                 att_type = LPFC_ATT_RESERVED;
4187                 break;
4188         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4189                 att_type = LPFC_ATT_LINK_UP;
4190                 break;
4191         default:
4192                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4193                                 "0399 Invalid link attention type: x%x\n",
4194                                 bf_get(lpfc_acqe_link_status, acqe_link));
4195                 att_type = LPFC_ATT_RESERVED;
4196                 break;
4197         }
4198         return att_type;
4199 }
4200
4201 /**
4202  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4203  * @phba: pointer to lpfc hba data structure.
4204  *
4205  * This routine is to get an SLI3 FC port's link speed in Mbps.
4206  *
4207  * Return: link speed in terms of Mbps.
4208  **/
4209 uint32_t
4210 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4211 {
4212         uint32_t link_speed;
4213
4214         if (!lpfc_is_link_up(phba))
4215                 return 0;
4216
4217         if (phba->sli_rev <= LPFC_SLI_REV3) {
4218                 switch (phba->fc_linkspeed) {
4219                 case LPFC_LINK_SPEED_1GHZ:
4220                         link_speed = 1000;
4221                         break;
4222                 case LPFC_LINK_SPEED_2GHZ:
4223                         link_speed = 2000;
4224                         break;
4225                 case LPFC_LINK_SPEED_4GHZ:
4226                         link_speed = 4000;
4227                         break;
4228                 case LPFC_LINK_SPEED_8GHZ:
4229                         link_speed = 8000;
4230                         break;
4231                 case LPFC_LINK_SPEED_10GHZ:
4232                         link_speed = 10000;
4233                         break;
4234                 case LPFC_LINK_SPEED_16GHZ:
4235                         link_speed = 16000;
4236                         break;
4237                 default:
4238                         link_speed = 0;
4239                 }
4240         } else {
4241                 if (phba->sli4_hba.link_state.logical_speed)
4242                         link_speed =
4243                               phba->sli4_hba.link_state.logical_speed;
4244                 else
4245                         link_speed = phba->sli4_hba.link_state.speed;
4246         }
4247         return link_speed;
4248 }
4249
4250 /**
4251  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4252  * @phba: pointer to lpfc hba data structure.
4253  * @evt_code: asynchronous event code.
4254  * @speed_code: asynchronous event link speed code.
4255  *
4256  * This routine is to parse the giving SLI4 async event link speed code into
4257  * value of Mbps for the link speed.
4258  *
4259  * Return: link speed in terms of Mbps.
4260  **/
4261 static uint32_t
4262 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4263                            uint8_t speed_code)
4264 {
4265         uint32_t port_speed;
4266
4267         switch (evt_code) {
4268         case LPFC_TRAILER_CODE_LINK:
4269                 switch (speed_code) {
4270                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4271                         port_speed = 0;
4272                         break;
4273                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4274                         port_speed = 10;
4275                         break;
4276                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4277                         port_speed = 100;
4278                         break;
4279                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4280                         port_speed = 1000;
4281                         break;
4282                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4283                         port_speed = 10000;
4284                         break;
4285                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4286                         port_speed = 20000;
4287                         break;
4288                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4289                         port_speed = 25000;
4290                         break;
4291                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4292                         port_speed = 40000;
4293                         break;
4294                 default:
4295                         port_speed = 0;
4296                 }
4297                 break;
4298         case LPFC_TRAILER_CODE_FC:
4299                 switch (speed_code) {
4300                 case LPFC_FC_LA_SPEED_UNKNOWN:
4301                         port_speed = 0;
4302                         break;
4303                 case LPFC_FC_LA_SPEED_1G:
4304                         port_speed = 1000;
4305                         break;
4306                 case LPFC_FC_LA_SPEED_2G:
4307                         port_speed = 2000;
4308                         break;
4309                 case LPFC_FC_LA_SPEED_4G:
4310                         port_speed = 4000;
4311                         break;
4312                 case LPFC_FC_LA_SPEED_8G:
4313                         port_speed = 8000;
4314                         break;
4315                 case LPFC_FC_LA_SPEED_10G:
4316                         port_speed = 10000;
4317                         break;
4318                 case LPFC_FC_LA_SPEED_16G:
4319                         port_speed = 16000;
4320                         break;
4321                 case LPFC_FC_LA_SPEED_32G:
4322                         port_speed = 32000;
4323                         break;
4324                 default:
4325                         port_speed = 0;
4326                 }
4327                 break;
4328         default:
4329                 port_speed = 0;
4330         }
4331         return port_speed;
4332 }
4333
4334 /**
4335  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4336  * @phba: pointer to lpfc hba data structure.
4337  * @acqe_link: pointer to the async link completion queue entry.
4338  *
4339  * This routine is to handle the SLI4 asynchronous FCoE link event.
4340  **/
4341 static void
4342 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4343                          struct lpfc_acqe_link *acqe_link)
4344 {
4345         struct lpfc_dmabuf *mp;
4346         LPFC_MBOXQ_t *pmb;
4347         MAILBOX_t *mb;
4348         struct lpfc_mbx_read_top *la;
4349         uint8_t att_type;
4350         int rc;
4351
4352         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4353         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4354                 return;
4355         phba->fcoe_eventtag = acqe_link->event_tag;
4356         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4357         if (!pmb) {
4358                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4359                                 "0395 The mboxq allocation failed\n");
4360                 return;
4361         }
4362         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4363         if (!mp) {
4364                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4365                                 "0396 The lpfc_dmabuf allocation failed\n");
4366                 goto out_free_pmb;
4367         }
4368         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4369         if (!mp->virt) {
4370                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4371                                 "0397 The mbuf allocation failed\n");
4372                 goto out_free_dmabuf;
4373         }
4374
4375         /* Cleanup any outstanding ELS commands */
4376         lpfc_els_flush_all_cmd(phba);
4377
4378         /* Block ELS IOCBs until we have done process link event */
4379         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4380
4381         /* Update link event statistics */
4382         phba->sli.slistat.link_event++;
4383
4384         /* Create lpfc_handle_latt mailbox command from link ACQE */
4385         lpfc_read_topology(phba, pmb, mp);
4386         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4387         pmb->vport = phba->pport;
4388
4389         /* Keep the link status for extra SLI4 state machine reference */
4390         phba->sli4_hba.link_state.speed =
4391                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4392                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4393         phba->sli4_hba.link_state.duplex =
4394                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4395         phba->sli4_hba.link_state.status =
4396                                 bf_get(lpfc_acqe_link_status, acqe_link);
4397         phba->sli4_hba.link_state.type =
4398                                 bf_get(lpfc_acqe_link_type, acqe_link);
4399         phba->sli4_hba.link_state.number =
4400                                 bf_get(lpfc_acqe_link_number, acqe_link);
4401         phba->sli4_hba.link_state.fault =
4402                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4403         phba->sli4_hba.link_state.logical_speed =
4404                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4405
4406         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4407                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4408                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4409                         "Logical speed:%dMbps Fault:%d\n",
4410                         phba->sli4_hba.link_state.speed,
4411                         phba->sli4_hba.link_state.topology,
4412                         phba->sli4_hba.link_state.status,
4413                         phba->sli4_hba.link_state.type,
4414                         phba->sli4_hba.link_state.number,
4415                         phba->sli4_hba.link_state.logical_speed,
4416                         phba->sli4_hba.link_state.fault);
4417         /*
4418          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4419          * topology info. Note: Optional for non FC-AL ports.
4420          */
4421         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4422                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4423                 if (rc == MBX_NOT_FINISHED)
4424                         goto out_free_dmabuf;
4425                 return;
4426         }
4427         /*
4428          * For FCoE Mode: fill in all the topology information we need and call
4429          * the READ_TOPOLOGY completion routine to continue without actually
4430          * sending the READ_TOPOLOGY mailbox command to the port.
4431          */
4432         /* Parse and translate status field */
4433         mb = &pmb->u.mb;
4434         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
4435
4436         /* Parse and translate link attention fields */
4437         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4438         la->eventTag = acqe_link->event_tag;
4439         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4440         bf_set(lpfc_mbx_read_top_link_spd, la,
4441                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4442
4443         /* Fake the the following irrelvant fields */
4444         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4445         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4446         bf_set(lpfc_mbx_read_top_il, la, 0);
4447         bf_set(lpfc_mbx_read_top_pb, la, 0);
4448         bf_set(lpfc_mbx_read_top_fa, la, 0);
4449         bf_set(lpfc_mbx_read_top_mm, la, 0);
4450
4451         /* Invoke the lpfc_handle_latt mailbox command callback function */
4452         lpfc_mbx_cmpl_read_topology(phba, pmb);
4453
4454         return;
4455
4456 out_free_dmabuf:
4457         kfree(mp);
4458 out_free_pmb:
4459         mempool_free(pmb, phba->mbox_mem_pool);
4460 }
4461
4462 /**
4463  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4464  * @phba: pointer to lpfc hba data structure.
4465  * @acqe_fc: pointer to the async fc completion queue entry.
4466  *
4467  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4468  * that the event was received and then issue a read_topology mailbox command so
4469  * that the rest of the driver will treat it the same as SLI3.
4470  **/
4471 static void
4472 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4473 {
4474         struct lpfc_dmabuf *mp;
4475         LPFC_MBOXQ_t *pmb;
4476         MAILBOX_t *mb;
4477         struct lpfc_mbx_read_top *la;
4478         int rc;
4479
4480         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4481             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4482                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4483                                 "2895 Non FC link Event detected.(%d)\n",
4484                                 bf_get(lpfc_trailer_type, acqe_fc));
4485                 return;
4486         }
4487         /* Keep the link status for extra SLI4 state machine reference */
4488         phba->sli4_hba.link_state.speed =
4489                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4490                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4491         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4492         phba->sli4_hba.link_state.topology =
4493                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4494         phba->sli4_hba.link_state.status =
4495                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4496         phba->sli4_hba.link_state.type =
4497                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4498         phba->sli4_hba.link_state.number =
4499                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4500         phba->sli4_hba.link_state.fault =
4501                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4502         phba->sli4_hba.link_state.logical_speed =
4503                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4504         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4505                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4506                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4507                         "%dMbps Fault:%d\n",
4508                         phba->sli4_hba.link_state.speed,
4509                         phba->sli4_hba.link_state.topology,
4510                         phba->sli4_hba.link_state.status,
4511                         phba->sli4_hba.link_state.type,
4512                         phba->sli4_hba.link_state.number,
4513                         phba->sli4_hba.link_state.logical_speed,
4514                         phba->sli4_hba.link_state.fault);
4515         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4516         if (!pmb) {
4517                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4518                                 "2897 The mboxq allocation failed\n");
4519                 return;
4520         }
4521         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4522         if (!mp) {
4523                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4524                                 "2898 The lpfc_dmabuf allocation failed\n");
4525                 goto out_free_pmb;
4526         }
4527         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4528         if (!mp->virt) {
4529                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4530                                 "2899 The mbuf allocation failed\n");
4531                 goto out_free_dmabuf;
4532         }
4533
4534         /* Cleanup any outstanding ELS commands */
4535         lpfc_els_flush_all_cmd(phba);
4536
4537         /* Block ELS IOCBs until we have done process link event */
4538         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4539
4540         /* Update link event statistics */
4541         phba->sli.slistat.link_event++;
4542
4543         /* Create lpfc_handle_latt mailbox command from link ACQE */
4544         lpfc_read_topology(phba, pmb, mp);
4545         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4546         pmb->vport = phba->pport;
4547
4548         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4549                 /* Parse and translate status field */
4550                 mb = &pmb->u.mb;
4551                 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,
4552                                                            (void *)acqe_fc);
4553
4554                 /* Parse and translate link attention fields */
4555                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4556                 la->eventTag = acqe_fc->event_tag;
4557
4558                 if (phba->sli4_hba.link_state.status ==
4559                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
4560                         bf_set(lpfc_mbx_read_top_att_type, la,
4561                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
4562                 } else {
4563                         bf_set(lpfc_mbx_read_top_att_type, la,
4564                                LPFC_FC_LA_TYPE_LINK_DOWN);
4565                 }
4566                 /* Invoke the mailbox command callback function */
4567                 lpfc_mbx_cmpl_read_topology(phba, pmb);
4568
4569                 return;
4570         }
4571
4572         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4573         if (rc == MBX_NOT_FINISHED)
4574                 goto out_free_dmabuf;
4575         return;
4576
4577 out_free_dmabuf:
4578         kfree(mp);
4579 out_free_pmb:
4580         mempool_free(pmb, phba->mbox_mem_pool);
4581 }
4582
4583 /**
4584  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4585  * @phba: pointer to lpfc hba data structure.
4586  * @acqe_fc: pointer to the async SLI completion queue entry.
4587  *
4588  * This routine is to handle the SLI4 asynchronous SLI events.
4589  **/
4590 static void
4591 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4592 {
4593         char port_name;
4594         char message[128];
4595         uint8_t status;
4596         uint8_t evt_type;
4597         uint8_t operational = 0;
4598         struct temp_event temp_event_data;
4599         struct lpfc_acqe_misconfigured_event *misconfigured;
4600         struct Scsi_Host  *shost;
4601
4602         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4603
4604         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4605                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4606                         "x%08x SLI Event Type:%d\n",
4607                         acqe_sli->event_data1, acqe_sli->event_data2,
4608                         evt_type);
4609
4610         port_name = phba->Port[0];
4611         if (port_name == 0x00)
4612                 port_name = '?'; /* get port name is empty */
4613
4614         switch (evt_type) {
4615         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4616                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4617                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4618                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4619
4620                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4621                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4622                                 acqe_sli->event_data1, port_name);
4623
4624                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4625                 shost = lpfc_shost_from_vport(phba->pport);
4626                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4627                                           sizeof(temp_event_data),
4628                                           (char *)&temp_event_data,
4629                                           SCSI_NL_VID_TYPE_PCI
4630                                           | PCI_VENDOR_ID_EMULEX);
4631                 break;
4632         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4633                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4634                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4635                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4636
4637                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4638                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4639                                 acqe_sli->event_data1, port_name);
4640
4641                 shost = lpfc_shost_from_vport(phba->pport);
4642                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4643                                           sizeof(temp_event_data),
4644                                           (char *)&temp_event_data,
4645                                           SCSI_NL_VID_TYPE_PCI
4646                                           | PCI_VENDOR_ID_EMULEX);
4647                 break;
4648         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4649                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4650                                         &acqe_sli->event_data1;
4651
4652                 /* fetch the status for this port */
4653                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4654                 case LPFC_LINK_NUMBER_0:
4655                         status = bf_get(lpfc_sli_misconfigured_port0_state,
4656                                         &misconfigured->theEvent);
4657                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
4658                                         &misconfigured->theEvent);
4659                         break;
4660                 case LPFC_LINK_NUMBER_1:
4661                         status = bf_get(lpfc_sli_misconfigured_port1_state,
4662                                         &misconfigured->theEvent);
4663                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
4664                                         &misconfigured->theEvent);
4665                         break;
4666                 case LPFC_LINK_NUMBER_2:
4667                         status = bf_get(lpfc_sli_misconfigured_port2_state,
4668                                         &misconfigured->theEvent);
4669                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
4670                                         &misconfigured->theEvent);
4671                         break;
4672                 case LPFC_LINK_NUMBER_3:
4673                         status = bf_get(lpfc_sli_misconfigured_port3_state,
4674                                         &misconfigured->theEvent);
4675                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
4676                                         &misconfigured->theEvent);
4677                         break;
4678                 default:
4679                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4680                                         "3296 "
4681                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4682                                         "event: Invalid link %d",
4683                                         phba->sli4_hba.lnk_info.lnk_no);
4684                         return;
4685                 }
4686
4687                 /* Skip if optic state unchanged */
4688                 if (phba->sli4_hba.lnk_info.optic_state == status)
4689                         return;
4690
4691                 switch (status) {
4692                 case LPFC_SLI_EVENT_STATUS_VALID:
4693                         sprintf(message, "Physical Link is functional");
4694                         break;
4695                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4696                         sprintf(message, "Optics faulted/incorrectly "
4697                                 "installed/not installed - Reseat optics, "
4698                                 "if issue not resolved, replace.");
4699                         break;
4700                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4701                         sprintf(message,
4702                                 "Optics of two types installed - Remove one "
4703                                 "optic or install matching pair of optics.");
4704                         break;
4705                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4706                         sprintf(message, "Incompatible optics - Replace with "
4707                                 "compatible optics for card to function.");
4708                         break;
4709                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4710                         sprintf(message, "Unqualified optics - Replace with "
4711                                 "Avago optics for Warranty and Technical "
4712                                 "Support - Link is%s operational",
4713                                 (operational) ? " not" : "");
4714                         break;
4715                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4716                         sprintf(message, "Uncertified optics - Replace with "
4717                                 "Avago-certified optics to enable link "
4718                                 "operation - Link is%s operational",
4719                                 (operational) ? " not" : "");
4720                         break;
4721                 default:
4722                         /* firmware is reporting a status we don't know about */
4723                         sprintf(message, "Unknown event status x%02x", status);
4724                         break;
4725                 }
4726                 phba->sli4_hba.lnk_info.optic_state = status;
4727                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4728                                 "3176 Port Name %c %s\n", port_name, message);
4729                 break;
4730         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4731                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4732                                 "3192 Remote DPort Test Initiated - "
4733                                 "Event Data1:x%08x Event Data2: x%08x\n",
4734                                 acqe_sli->event_data1, acqe_sli->event_data2);
4735                 break;
4736         default:
4737                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4738                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4739                                 "x%08x SLI Event Type:%d\n",
4740                                 acqe_sli->event_data1, acqe_sli->event_data2,
4741                                 evt_type);
4742                 break;
4743         }
4744 }
4745
4746 /**
4747  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4748  * @vport: pointer to vport data structure.
4749  *
4750  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4751  * response to a CVL event.
4752  *
4753  * Return the pointer to the ndlp with the vport if successful, otherwise
4754  * return NULL.
4755  **/
4756 static struct lpfc_nodelist *
4757 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4758 {
4759         struct lpfc_nodelist *ndlp;
4760         struct Scsi_Host *shost;
4761         struct lpfc_hba *phba;
4762
4763         if (!vport)
4764                 return NULL;
4765         phba = vport->phba;
4766         if (!phba)
4767                 return NULL;
4768         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4769         if (!ndlp) {
4770                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4771                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
4772                 if (!ndlp)
4773                         return 0;
4774                 /* Set the node type */
4775                 ndlp->nlp_type |= NLP_FABRIC;
4776                 /* Put ndlp onto node list */
4777                 lpfc_enqueue_node(vport, ndlp);
4778         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4779                 /* re-setup ndlp without removing from node list */
4780                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4781                 if (!ndlp)
4782                         return 0;
4783         }
4784         if ((phba->pport->port_state < LPFC_FLOGI) &&
4785                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4786                 return NULL;
4787         /* If virtual link is not yet instantiated ignore CVL */
4788         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4789                 && (vport->port_state != LPFC_VPORT_FAILED))
4790                 return NULL;
4791         shost = lpfc_shost_from_vport(vport);
4792         if (!shost)
4793                 return NULL;
4794         lpfc_linkdown_port(vport);
4795         lpfc_cleanup_pending_mbox(vport);
4796         spin_lock_irq(shost->host_lock);
4797         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4798         spin_unlock_irq(shost->host_lock);
4799
4800         return ndlp;
4801 }
4802
4803 /**
4804  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4805  * @vport: pointer to lpfc hba data structure.
4806  *
4807  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4808  * response to a FCF dead event.
4809  **/
4810 static void
4811 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4812 {
4813         struct lpfc_vport **vports;
4814         int i;
4815
4816         vports = lpfc_create_vport_work_array(phba);
4817         if (vports)
4818                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4819                         lpfc_sli4_perform_vport_cvl(vports[i]);
4820         lpfc_destroy_vport_work_array(phba, vports);
4821 }
4822
4823 /**
4824  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4825  * @phba: pointer to lpfc hba data structure.
4826  * @acqe_link: pointer to the async fcoe completion queue entry.
4827  *
4828  * This routine is to handle the SLI4 asynchronous fcoe event.
4829  **/
4830 static void
4831 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4832                         struct lpfc_acqe_fip *acqe_fip)
4833 {
4834         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4835         int rc;
4836         struct lpfc_vport *vport;
4837         struct lpfc_nodelist *ndlp;
4838         struct Scsi_Host  *shost;
4839         int active_vlink_present;
4840         struct lpfc_vport **vports;
4841         int i;
4842
4843         phba->fc_eventTag = acqe_fip->event_tag;
4844         phba->fcoe_eventtag = acqe_fip->event_tag;
4845         switch (event_type) {
4846         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4847         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4848                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4849                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4850                                         LOG_DISCOVERY,
4851                                         "2546 New FCF event, evt_tag:x%x, "
4852                                         "index:x%x\n",
4853                                         acqe_fip->event_tag,
4854                                         acqe_fip->index);
4855                 else
4856                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4857                                         LOG_DISCOVERY,
4858                                         "2788 FCF param modified event, "
4859                                         "evt_tag:x%x, index:x%x\n",
4860                                         acqe_fip->event_tag,
4861                                         acqe_fip->index);
4862                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4863                         /*
4864                          * During period of FCF discovery, read the FCF
4865                          * table record indexed by the event to update
4866                          * FCF roundrobin failover eligible FCF bmask.
4867                          */
4868                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4869                                         LOG_DISCOVERY,
4870                                         "2779 Read FCF (x%x) for updating "
4871                                         "roundrobin FCF failover bmask\n",
4872                                         acqe_fip->index);
4873                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4874                 }
4875
4876                 /* If the FCF discovery is in progress, do nothing. */
4877                 spin_lock_irq(&phba->hbalock);
4878                 if (phba->hba_flag & FCF_TS_INPROG) {
4879                         spin_unlock_irq(&phba->hbalock);
4880                         break;
4881                 }
4882                 /* If fast FCF failover rescan event is pending, do nothing */
4883                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4884                         spin_unlock_irq(&phba->hbalock);
4885                         break;
4886                 }
4887
4888                 /* If the FCF has been in discovered state, do nothing. */
4889                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4890                         spin_unlock_irq(&phba->hbalock);
4891                         break;
4892                 }
4893                 spin_unlock_irq(&phba->hbalock);
4894
4895                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4896                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4897                                 "2770 Start FCF table scan per async FCF "
4898                                 "event, evt_tag:x%x, index:x%x\n",
4899                                 acqe_fip->event_tag, acqe_fip->index);
4900                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4901                                                      LPFC_FCOE_FCF_GET_FIRST);
4902                 if (rc)
4903                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4904                                         "2547 Issue FCF scan read FCF mailbox "
4905                                         "command failed (x%x)\n", rc);
4906                 break;
4907
4908         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4909                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4910                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4911                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4912                         acqe_fip->event_tag);
4913                 break;
4914
4915         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4916                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4917                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4918                         "2549 FCF (x%x) disconnected from network, "
4919                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4920                 /*
4921                  * If we are in the middle of FCF failover process, clear
4922                  * the corresponding FCF bit in the roundrobin bitmap.
4923                  */
4924                 spin_lock_irq(&phba->hbalock);
4925                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
4926                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
4927                         spin_unlock_irq(&phba->hbalock);
4928                         /* Update FLOGI FCF failover eligible FCF bmask */
4929                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4930                         break;
4931                 }
4932                 spin_unlock_irq(&phba->hbalock);
4933
4934                 /* If the event is not for currently used fcf do nothing */
4935                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4936                         break;
4937
4938                 /*
4939                  * Otherwise, request the port to rediscover the entire FCF
4940                  * table for a fast recovery from case that the current FCF
4941                  * is no longer valid as we are not in the middle of FCF
4942                  * failover process already.
4943                  */
4944                 spin_lock_irq(&phba->hbalock);
4945                 /* Mark the fast failover process in progress */
4946                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4947                 spin_unlock_irq(&phba->hbalock);
4948
4949                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4950                                 "2771 Start FCF fast failover process due to "
4951                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4952                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4953                 rc = lpfc_sli4_redisc_fcf_table(phba);
4954                 if (rc) {
4955                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4956                                         LOG_DISCOVERY,
4957                                         "2772 Issue FCF rediscover mabilbox "
4958                                         "command failed, fail through to FCF "
4959                                         "dead event\n");
4960                         spin_lock_irq(&phba->hbalock);
4961                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4962                         spin_unlock_irq(&phba->hbalock);
4963                         /*
4964                          * Last resort will fail over by treating this
4965                          * as a link down to FCF registration.
4966                          */
4967                         lpfc_sli4_fcf_dead_failthrough(phba);
4968                 } else {
4969                         /* Reset FCF roundrobin bmask for new discovery */
4970                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4971                         /*
4972                          * Handling fast FCF failover to a DEAD FCF event is
4973                          * considered equalivant to receiving CVL to all vports.
4974                          */
4975                         lpfc_sli4_perform_all_vport_cvl(phba);
4976                 }
4977                 break;
4978         case LPFC_FIP_EVENT_TYPE_CVL:
4979                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4980                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4981                         "2718 Clear Virtual Link Received for VPI 0x%x"
4982                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4983
4984                 vport = lpfc_find_vport_by_vpid(phba,
4985                                                 acqe_fip->index);
4986                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4987                 if (!ndlp)
4988                         break;
4989                 active_vlink_present = 0;
4990
4991                 vports = lpfc_create_vport_work_array(phba);
4992                 if (vports) {
4993                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4994                                         i++) {
4995                                 if ((!(vports[i]->fc_flag &
4996                                         FC_VPORT_CVL_RCVD)) &&
4997                                         (vports[i]->port_state > LPFC_FDISC)) {
4998                                         active_vlink_present = 1;
4999                                         break;
5000                                 }
5001                         }
5002                         lpfc_destroy_vport_work_array(phba, vports);
5003                 }
5004
5005                 /*
5006                  * Don't re-instantiate if vport is marked for deletion.
5007                  * If we are here first then vport_delete is going to wait
5008                  * for discovery to complete.
5009                  */
5010                 if (!(vport->load_flag & FC_UNLOADING) &&
5011                                         active_vlink_present) {
5012                         /*
5013                          * If there are other active VLinks present,
5014                          * re-instantiate the Vlink using FDISC.
5015                          */
5016                         mod_timer(&ndlp->nlp_delayfunc,
5017                                   jiffies + msecs_to_jiffies(1000));
5018                         shost = lpfc_shost_from_vport(vport);
5019                         spin_lock_irq(shost->host_lock);
5020                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5021                         spin_unlock_irq(shost->host_lock);
5022                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5023                         vport->port_state = LPFC_FDISC;
5024                 } else {
5025                         /*
5026                          * Otherwise, we request port to rediscover
5027                          * the entire FCF table for a fast recovery
5028                          * from possible case that the current FCF
5029                          * is no longer valid if we are not already
5030                          * in the FCF failover process.
5031                          */
5032                         spin_lock_irq(&phba->hbalock);
5033                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5034                                 spin_unlock_irq(&phba->hbalock);
5035                                 break;
5036                         }
5037                         /* Mark the fast failover process in progress */
5038                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5039                         spin_unlock_irq(&phba->hbalock);
5040                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5041                                         LOG_DISCOVERY,
5042                                         "2773 Start FCF failover per CVL, "
5043                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5044                         rc = lpfc_sli4_redisc_fcf_table(phba);
5045                         if (rc) {
5046                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5047                                                 LOG_DISCOVERY,
5048                                                 "2774 Issue FCF rediscover "
5049                                                 "mabilbox command failed, "
5050                                                 "through to CVL event\n");
5051                                 spin_lock_irq(&phba->hbalock);
5052                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5053                                 spin_unlock_irq(&phba->hbalock);
5054                                 /*
5055                                  * Last resort will be re-try on the
5056                                  * the current registered FCF entry.
5057                                  */
5058                                 lpfc_retry_pport_discovery(phba);
5059                         } else
5060                                 /*
5061                                  * Reset FCF roundrobin bmask for new
5062                                  * discovery.
5063                                  */
5064                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5065                 }
5066                 break;
5067         default:
5068                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5069                         "0288 Unknown FCoE event type 0x%x event tag "
5070                         "0x%x\n", event_type, acqe_fip->event_tag);
5071                 break;
5072         }
5073 }
5074
5075 /**
5076  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5077  * @phba: pointer to lpfc hba data structure.
5078  * @acqe_link: pointer to the async dcbx completion queue entry.
5079  *
5080  * This routine is to handle the SLI4 asynchronous dcbx event.
5081  **/
5082 static void
5083 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5084                          struct lpfc_acqe_dcbx *acqe_dcbx)
5085 {
5086         phba->fc_eventTag = acqe_dcbx->event_tag;
5087         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5088                         "0290 The SLI4 DCBX asynchronous event is not "
5089                         "handled yet\n");
5090 }
5091
5092 /**
5093  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5094  * @phba: pointer to lpfc hba data structure.
5095  * @acqe_link: pointer to the async grp5 completion queue entry.
5096  *
5097  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5098  * is an asynchronous notified of a logical link speed change.  The Port
5099  * reports the logical link speed in units of 10Mbps.
5100  **/
5101 static void
5102 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5103                          struct lpfc_acqe_grp5 *acqe_grp5)
5104 {
5105         uint16_t prev_ll_spd;
5106
5107         phba->fc_eventTag = acqe_grp5->event_tag;
5108         phba->fcoe_eventtag = acqe_grp5->event_tag;
5109         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5110         phba->sli4_hba.link_state.logical_speed =
5111                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5112         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5113                         "2789 GRP5 Async Event: Updating logical link speed "
5114                         "from %dMbps to %dMbps\n", prev_ll_spd,
5115                         phba->sli4_hba.link_state.logical_speed);
5116 }
5117
5118 /**
5119  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5120  * @phba: pointer to lpfc hba data structure.
5121  *
5122  * This routine is invoked by the worker thread to process all the pending
5123  * SLI4 asynchronous events.
5124  **/
5125 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5126 {
5127         struct lpfc_cq_event *cq_event;
5128
5129         /* First, declare the async event has been handled */
5130         spin_lock_irq(&phba->hbalock);
5131         phba->hba_flag &= ~ASYNC_EVENT;
5132         spin_unlock_irq(&phba->hbalock);
5133         /* Now, handle all the async events */
5134         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5135                 /* Get the first event from the head of the event queue */
5136                 spin_lock_irq(&phba->hbalock);
5137                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5138                                  cq_event, struct lpfc_cq_event, list);
5139                 spin_unlock_irq(&phba->hbalock);
5140                 /* Process the asynchronous event */
5141                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5142                 case LPFC_TRAILER_CODE_LINK:
5143                         lpfc_sli4_async_link_evt(phba,
5144                                                  &cq_event->cqe.acqe_link);
5145                         break;
5146                 case LPFC_TRAILER_CODE_FCOE:
5147                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5148                         break;
5149                 case LPFC_TRAILER_CODE_DCBX:
5150                         lpfc_sli4_async_dcbx_evt(phba,
5151                                                  &cq_event->cqe.acqe_dcbx);
5152                         break;
5153                 case LPFC_TRAILER_CODE_GRP5:
5154                         lpfc_sli4_async_grp5_evt(phba,
5155                                                  &cq_event->cqe.acqe_grp5);
5156                         break;
5157                 case LPFC_TRAILER_CODE_FC:
5158                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5159                         break;
5160                 case LPFC_TRAILER_CODE_SLI:
5161                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5162                         break;
5163                 default:
5164                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5165                                         "1804 Invalid asynchrous event code: "
5166                                         "x%x\n", bf_get(lpfc_trailer_code,
5167                                         &cq_event->cqe.mcqe_cmpl));
5168                         break;
5169                 }
5170                 /* Free the completion event processed to the free pool */
5171                 lpfc_sli4_cq_event_release(phba, cq_event);
5172         }
5173 }
5174
5175 /**
5176  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5177  * @phba: pointer to lpfc hba data structure.
5178  *
5179  * This routine is invoked by the worker thread to process FCF table
5180  * rediscovery pending completion event.
5181  **/
5182 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5183 {
5184         int rc;
5185
5186         spin_lock_irq(&phba->hbalock);
5187         /* Clear FCF rediscovery timeout event */
5188         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5189         /* Clear driver fast failover FCF record flag */
5190         phba->fcf.failover_rec.flag = 0;
5191         /* Set state for FCF fast failover */
5192         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5193         spin_unlock_irq(&phba->hbalock);
5194
5195         /* Scan FCF table from the first entry to re-discover SAN */
5196         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5197                         "2777 Start post-quiescent FCF table scan\n");
5198         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5199         if (rc)
5200                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5201                                 "2747 Issue FCF scan read FCF mailbox "
5202                                 "command failed 0x%x\n", rc);
5203 }
5204
5205 /**
5206  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5207  * @phba: pointer to lpfc hba data structure.
5208  * @dev_grp: The HBA PCI-Device group number.
5209  *
5210  * This routine is invoked to set up the per HBA PCI-Device group function
5211  * API jump table entries.
5212  *
5213  * Return: 0 if success, otherwise -ENODEV
5214  **/
5215 int
5216 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5217 {
5218         int rc;
5219
5220         /* Set up lpfc PCI-device group */
5221         phba->pci_dev_grp = dev_grp;
5222
5223         /* The LPFC_PCI_DEV_OC uses SLI4 */
5224         if (dev_grp == LPFC_PCI_DEV_OC)
5225                 phba->sli_rev = LPFC_SLI_REV4;
5226
5227         /* Set up device INIT API function jump table */
5228         rc = lpfc_init_api_table_setup(phba, dev_grp);
5229         if (rc)
5230                 return -ENODEV;
5231         /* Set up SCSI API function jump table */
5232         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5233         if (rc)
5234                 return -ENODEV;
5235         /* Set up SLI API function jump table */
5236         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5237         if (rc)
5238                 return -ENODEV;
5239         /* Set up MBOX API function jump table */
5240         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5241         if (rc)
5242                 return -ENODEV;
5243
5244         return 0;
5245 }
5246
5247 /**
5248  * lpfc_log_intr_mode - Log the active interrupt mode
5249  * @phba: pointer to lpfc hba data structure.
5250  * @intr_mode: active interrupt mode adopted.
5251  *
5252  * This routine it invoked to log the currently used active interrupt mode
5253  * to the device.
5254  **/
5255 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5256 {
5257         switch (intr_mode) {
5258         case 0:
5259                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5260                                 "0470 Enable INTx interrupt mode.\n");
5261                 break;
5262         case 1:
5263                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5264                                 "0481 Enabled MSI interrupt mode.\n");
5265                 break;
5266         case 2:
5267                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5268                                 "0480 Enabled MSI-X interrupt mode.\n");
5269                 break;
5270         default:
5271                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5272                                 "0482 Illegal interrupt mode.\n");
5273                 break;
5274         }
5275         return;
5276 }
5277
5278 /**
5279  * lpfc_enable_pci_dev - Enable a generic PCI device.
5280  * @phba: pointer to lpfc hba data structure.
5281  *
5282  * This routine is invoked to enable the PCI device that is common to all
5283  * PCI devices.
5284  *
5285  * Return codes
5286  *      0 - successful
5287  *      other values - error
5288  **/
5289 static int
5290 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5291 {
5292         struct pci_dev *pdev;
5293
5294         /* Obtain PCI device reference */
5295         if (!phba->pcidev)
5296                 goto out_error;
5297         else
5298                 pdev = phba->pcidev;
5299         /* Enable PCI device */
5300         if (pci_enable_device_mem(pdev))
5301                 goto out_error;
5302         /* Request PCI resource for the device */
5303         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5304                 goto out_disable_device;
5305         /* Set up device as PCI master and save state for EEH */
5306         pci_set_master(pdev);
5307         pci_try_set_mwi(pdev);
5308         pci_save_state(pdev);
5309
5310         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5311         if (pci_is_pcie(pdev))
5312                 pdev->needs_freset = 1;
5313
5314         return 0;
5315
5316 out_disable_device:
5317         pci_disable_device(pdev);
5318 out_error:
5319         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5320                         "1401 Failed to enable pci device\n");
5321         return -ENODEV;
5322 }
5323
5324 /**
5325  * lpfc_disable_pci_dev - Disable a generic PCI device.
5326  * @phba: pointer to lpfc hba data structure.
5327  *
5328  * This routine is invoked to disable the PCI device that is common to all
5329  * PCI devices.
5330  **/
5331 static void
5332 lpfc_disable_pci_dev(struct lpfc_hba *phba)
5333 {
5334         struct pci_dev *pdev;
5335
5336         /* Obtain PCI device reference */
5337         if (!phba->pcidev)
5338                 return;
5339         else
5340                 pdev = phba->pcidev;
5341         /* Release PCI resource and disable PCI device */
5342         pci_release_mem_regions(pdev);
5343         pci_disable_device(pdev);
5344
5345         return;
5346 }
5347
5348 /**
5349  * lpfc_reset_hba - Reset a hba
5350  * @phba: pointer to lpfc hba data structure.
5351  *
5352  * This routine is invoked to reset a hba device. It brings the HBA
5353  * offline, performs a board restart, and then brings the board back
5354  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
5355  * on outstanding mailbox commands.
5356  **/
5357 void
5358 lpfc_reset_hba(struct lpfc_hba *phba)
5359 {
5360         /* If resets are disabled then set error state and return. */
5361         if (!phba->cfg_enable_hba_reset) {
5362                 phba->link_state = LPFC_HBA_ERROR;
5363                 return;
5364         }
5365         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
5366                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
5367         else
5368                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
5369         lpfc_offline(phba);
5370         lpfc_sli_brdrestart(phba);
5371         lpfc_online(phba);
5372         lpfc_unblock_mgmt_io(phba);
5373 }
5374
5375 /**
5376  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
5377  * @phba: pointer to lpfc hba data structure.
5378  *
5379  * This function enables the PCI SR-IOV virtual functions to a physical
5380  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5381  * enable the number of virtual functions to the physical function. As
5382  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5383  * API call does not considered as an error condition for most of the device.
5384  **/
5385 uint16_t
5386 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
5387 {
5388         struct pci_dev *pdev = phba->pcidev;
5389         uint16_t nr_virtfn;
5390         int pos;
5391
5392         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
5393         if (pos == 0)
5394                 return 0;
5395
5396         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
5397         return nr_virtfn;
5398 }
5399
5400 /**
5401  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
5402  * @phba: pointer to lpfc hba data structure.
5403  * @nr_vfn: number of virtual functions to be enabled.
5404  *
5405  * This function enables the PCI SR-IOV virtual functions to a physical
5406  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5407  * enable the number of virtual functions to the physical function. As
5408  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5409  * API call does not considered as an error condition for most of the device.
5410  **/
5411 int
5412 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
5413 {
5414         struct pci_dev *pdev = phba->pcidev;
5415         uint16_t max_nr_vfn;
5416         int rc;
5417
5418         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
5419         if (nr_vfn > max_nr_vfn) {
5420                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5421                                 "3057 Requested vfs (%d) greater than "
5422                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
5423                 return -EINVAL;
5424         }
5425
5426         rc = pci_enable_sriov(pdev, nr_vfn);
5427         if (rc) {
5428                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5429                                 "2806 Failed to enable sriov on this device "
5430                                 "with vfn number nr_vf:%d, rc:%d\n",
5431                                 nr_vfn, rc);
5432         } else
5433                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5434                                 "2807 Successful enable sriov on this device "
5435                                 "with vfn number nr_vf:%d\n", nr_vfn);
5436         return rc;
5437 }
5438
5439 /**
5440  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5441  * @phba: pointer to lpfc hba data structure.
5442  *
5443  * This routine is invoked to set up the driver internal resources before the
5444  * device specific resource setup to support the HBA device it attached to.
5445  *
5446  * Return codes
5447  *      0 - successful
5448  *      other values - error
5449  **/
5450 static int
5451 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5452 {
5453         struct lpfc_sli *psli = &phba->sli;
5454
5455         /*
5456          * Driver resources common to all SLI revisions
5457          */
5458         atomic_set(&phba->fast_event_count, 0);
5459         spin_lock_init(&phba->hbalock);
5460
5461         /* Initialize ndlp management spinlock */
5462         spin_lock_init(&phba->ndlp_lock);
5463
5464         INIT_LIST_HEAD(&phba->port_list);
5465         INIT_LIST_HEAD(&phba->work_list);
5466         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5467
5468         /* Initialize the wait queue head for the kernel thread */
5469         init_waitqueue_head(&phba->work_waitq);
5470
5471         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5472                         "1403 Protocols supported %s %s %s\n",
5473                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5474                                 "SCSI" : " "),
5475                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5476                                 "NVME" : " "),
5477                         (phba->nvmet_support ? "NVMET" : " "));
5478
5479         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5480                 /* Initialize the scsi buffer list used by driver for scsi IO */
5481                 spin_lock_init(&phba->scsi_buf_list_get_lock);
5482                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5483                 spin_lock_init(&phba->scsi_buf_list_put_lock);
5484                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5485         }
5486
5487         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5488                 (phba->nvmet_support == 0)) {
5489                 /* Initialize the NVME buffer list used by driver for NVME IO */
5490                 spin_lock_init(&phba->nvme_buf_list_get_lock);
5491                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5492                 spin_lock_init(&phba->nvme_buf_list_put_lock);
5493                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5494         }
5495
5496         /* Initialize the fabric iocb list */
5497         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5498
5499         /* Initialize list to save ELS buffers */
5500         INIT_LIST_HEAD(&phba->elsbuf);
5501
5502         /* Initialize FCF connection rec list */
5503         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5504
5505         /* Initialize OAS configuration list */
5506         spin_lock_init(&phba->devicelock);
5507         INIT_LIST_HEAD(&phba->luns);
5508
5509         /* MBOX heartbeat timer */
5510         setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba);
5511         /* Fabric block timer */
5512         setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout,
5513                         (unsigned long)phba);
5514         /* EA polling mode timer */
5515         setup_timer(&phba->eratt_poll, lpfc_poll_eratt,
5516                         (unsigned long)phba);
5517         /* Heartbeat timer */
5518         setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba);
5519
5520         return 0;
5521 }
5522
5523 /**
5524  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5525  * @phba: pointer to lpfc hba data structure.
5526  *
5527  * This routine is invoked to set up the driver internal resources specific to
5528  * support the SLI-3 HBA device it attached to.
5529  *
5530  * Return codes
5531  * 0 - successful
5532  * other values - error
5533  **/
5534 static int
5535 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5536 {
5537         int rc;
5538
5539         /*
5540          * Initialize timers used by driver
5541          */
5542
5543         /* FCP polling mode timer */
5544         setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout,
5545                         (unsigned long)phba);
5546
5547         /* Host attention work mask setup */
5548         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5549         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5550
5551         /* Get all the module params for configuring this host */
5552         lpfc_get_cfgparam(phba);
5553         /* Set up phase-1 common device driver resources */
5554
5555         rc = lpfc_setup_driver_resource_phase1(phba);
5556         if (rc)
5557                 return -ENODEV;
5558
5559         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5560                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5561                 /* check for menlo minimum sg count */
5562                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5563                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5564         }
5565
5566         if (!phba->sli.sli3_ring)
5567                 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING *
5568                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5569         if (!phba->sli.sli3_ring)
5570                 return -ENOMEM;
5571
5572         /*
5573          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5574          * used to create the sg_dma_buf_pool must be dynamically calculated.
5575          */
5576
5577         /* Initialize the host templates the configured values. */
5578         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5579         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5580         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5581
5582         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5583         if (phba->cfg_enable_bg) {
5584                 /*
5585                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5586                  * the FCP rsp, and a BDE for each. Sice we have no control
5587                  * over how many protection data segments the SCSI Layer
5588                  * will hand us (ie: there could be one for every block
5589                  * in the IO), we just allocate enough BDEs to accomidate
5590                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5591                  * minimize the risk of running out.
5592                  */
5593                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5594                         sizeof(struct fcp_rsp) +
5595                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5596
5597                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5598                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5599
5600                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5601                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5602         } else {
5603                 /*
5604                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5605                  * the FCP rsp, a BDE for each, and a BDE for up to
5606                  * cfg_sg_seg_cnt data segments.
5607                  */
5608                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5609                         sizeof(struct fcp_rsp) +
5610                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5611
5612                 /* Total BDEs in BPL for scsi_sg_list */
5613                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5614         }
5615
5616         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5617                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5618                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5619                         phba->cfg_total_seg_cnt);
5620
5621         phba->max_vpi = LPFC_MAX_VPI;
5622         /* This will be set to correct value after config_port mbox */
5623         phba->max_vports = 0;
5624
5625         /*
5626          * Initialize the SLI Layer to run with lpfc HBAs.
5627          */
5628         lpfc_sli_setup(phba);
5629         lpfc_sli_queue_init(phba);
5630
5631         /* Allocate device driver memory */
5632         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5633                 return -ENOMEM;
5634
5635         /*
5636          * Enable sr-iov virtual functions if supported and configured
5637          * through the module parameter.
5638          */
5639         if (phba->cfg_sriov_nr_virtfn > 0) {
5640                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5641                                                  phba->cfg_sriov_nr_virtfn);
5642                 if (rc) {
5643                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5644                                         "2808 Requested number of SR-IOV "
5645                                         "virtual functions (%d) is not "
5646                                         "supported\n",
5647                                         phba->cfg_sriov_nr_virtfn);
5648                         phba->cfg_sriov_nr_virtfn = 0;
5649                 }
5650         }
5651
5652         return 0;
5653 }
5654
5655 /**
5656  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5657  * @phba: pointer to lpfc hba data structure.
5658  *
5659  * This routine is invoked to unset the driver internal resources set up
5660  * specific for supporting the SLI-3 HBA device it attached to.
5661  **/
5662 static void
5663 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5664 {
5665         /* Free device driver memory allocated */
5666         lpfc_mem_free_all(phba);
5667
5668         return;
5669 }
5670
5671 /**
5672  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5673  * @phba: pointer to lpfc hba data structure.
5674  *
5675  * This routine is invoked to set up the driver internal resources specific to
5676  * support the SLI-4 HBA device it attached to.
5677  *
5678  * Return codes
5679  *      0 - successful
5680  *      other values - error
5681  **/
5682 static int
5683 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5684 {
5685         LPFC_MBOXQ_t *mboxq;
5686         MAILBOX_t *mb;
5687         int rc, i, max_buf_size;
5688         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5689         struct lpfc_mqe *mqe;
5690         int longs;
5691         int fof_vectors = 0;
5692         uint64_t wwn;
5693
5694         phba->sli4_hba.num_online_cpu = num_online_cpus();
5695         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
5696         phba->sli4_hba.curr_disp_cpu = 0;
5697
5698         /* Get all the module params for configuring this host */
5699         lpfc_get_cfgparam(phba);
5700
5701         /* Set up phase-1 common device driver resources */
5702         rc = lpfc_setup_driver_resource_phase1(phba);
5703         if (rc)
5704                 return -ENODEV;
5705
5706         /* Before proceed, wait for POST done and device ready */
5707         rc = lpfc_sli4_post_status_check(phba);
5708         if (rc)
5709                 return -ENODEV;
5710
5711         /*
5712          * Initialize timers used by driver
5713          */
5714
5715         setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba);
5716
5717         /* FCF rediscover timer */
5718         setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo,
5719                         (unsigned long)phba);
5720
5721         /*
5722          * Control structure for handling external multi-buffer mailbox
5723          * command pass-through.
5724          */
5725         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5726                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5727         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5728
5729         phba->max_vpi = LPFC_MAX_VPI;
5730
5731         /* This will be set to correct value after the read_config mbox */
5732         phba->max_vports = 0;
5733
5734         /* Program the default value of vlan_id and fc_map */
5735         phba->valid_vlan = 0;
5736         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5737         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5738         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5739
5740         /*
5741          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5742          * we will associate a new ring, for each EQ/CQ/WQ tuple.
5743          * The WQ create will allocate the ring.
5744          */
5745
5746         /*
5747          * It doesn't matter what family our adapter is in, we are
5748          * limited to 2 Pages, 512 SGEs, for our SGL.
5749          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5750          */
5751         max_buf_size = (2 * SLI4_PAGE_SIZE);
5752         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5753                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5754
5755         /*
5756          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
5757          * used to create the sg_dma_buf_pool must be calculated.
5758          */
5759         if (phba->cfg_enable_bg) {
5760                 /*
5761                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
5762                  * the FCP rsp, and a SGE. Sice we have no control
5763                  * over how many protection segments the SCSI Layer
5764                  * will hand us (ie: there could be one for every block
5765                  * in the IO), just allocate enough SGEs to accomidate
5766                  * our max amount and we need to limit lpfc_sg_seg_cnt
5767                  * to minimize the risk of running out.
5768                  */
5769                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5770                                 sizeof(struct fcp_rsp) + max_buf_size;
5771
5772                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5773                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5774
5775                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5776                         phba->cfg_sg_seg_cnt =
5777                                 LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5778         } else {
5779                 /*
5780                  * The scsi_buf for a regular I/O holds the FCP cmnd,
5781                  * the FCP rsp, a SGE for each, and a SGE for up to
5782                  * cfg_sg_seg_cnt data segments.
5783                  */
5784                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5785                                 sizeof(struct fcp_rsp) +
5786                                 ((phba->cfg_sg_seg_cnt + 2) *
5787                                 sizeof(struct sli4_sge));
5788
5789                 /* Total SGEs for scsi_sg_list */
5790                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5791
5792                 /*
5793                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only
5794                  * need to post 1 page for the SGL.
5795                  */
5796         }
5797
5798         /* Initialize the host templates with the updated values. */
5799         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5800         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5801         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5802
5803         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5804                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5805         else
5806                 phba->cfg_sg_dma_buf_size =
5807                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5808
5809         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5810                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5811                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5812                         phba->cfg_total_seg_cnt);
5813
5814         /* Initialize buffer queue management fields */
5815         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
5816         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5817         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5818
5819         /*
5820          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5821          */
5822         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5823                 /* Initialize the Abort scsi buffer list used by driver */
5824                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5825                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5826         }
5827
5828         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
5829                 /* Initialize the Abort nvme buffer list used by driver */
5830                 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
5831                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
5832                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
5833                 /* Fast-path XRI aborted CQ Event work queue list */
5834                 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
5835         }
5836
5837         /* This abort list used by worker thread */
5838         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
5839         spin_lock_init(&phba->sli4_hba.nvmet_io_lock);
5840
5841         /*
5842          * Initialize driver internal slow-path work queues
5843          */
5844
5845         /* Driver internel slow-path CQ Event pool */
5846         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5847         /* Response IOCB work queue list */
5848         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5849         /* Asynchronous event CQ Event work queue list */
5850         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5851         /* Fast-path XRI aborted CQ Event work queue list */
5852         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5853         /* Slow-path XRI aborted CQ Event work queue list */
5854         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5855         /* Receive queue CQ Event work queue list */
5856         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5857
5858         /* Initialize extent block lists. */
5859         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5860         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5861         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5862         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5863
5864         /* Initialize mboxq lists. If the early init routines fail
5865          * these lists need to be correctly initialized.
5866          */
5867         INIT_LIST_HEAD(&phba->sli.mboxq);
5868         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
5869
5870         /* initialize optic_state to 0xFF */
5871         phba->sli4_hba.lnk_info.optic_state = 0xff;
5872
5873         /* Allocate device driver memory */
5874         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5875         if (rc)
5876                 return -ENOMEM;
5877
5878         /* IF Type 2 ports get initialized now. */
5879         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5880             LPFC_SLI_INTF_IF_TYPE_2) {
5881                 rc = lpfc_pci_function_reset(phba);
5882                 if (unlikely(rc)) {
5883                         rc = -ENODEV;
5884                         goto out_free_mem;
5885                 }
5886                 phba->temp_sensor_support = 1;
5887         }
5888
5889         /* Create the bootstrap mailbox command */
5890         rc = lpfc_create_bootstrap_mbox(phba);
5891         if (unlikely(rc))
5892                 goto out_free_mem;
5893
5894         /* Set up the host's endian order with the device. */
5895         rc = lpfc_setup_endian_order(phba);
5896         if (unlikely(rc))
5897                 goto out_free_bsmbx;
5898
5899         /* Set up the hba's configuration parameters. */
5900         rc = lpfc_sli4_read_config(phba);
5901         if (unlikely(rc))
5902                 goto out_free_bsmbx;
5903         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5904         if (unlikely(rc))
5905                 goto out_free_bsmbx;
5906
5907         /* IF Type 0 ports get initialized now. */
5908         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5909             LPFC_SLI_INTF_IF_TYPE_0) {
5910                 rc = lpfc_pci_function_reset(phba);
5911                 if (unlikely(rc))
5912                         goto out_free_bsmbx;
5913         }
5914
5915         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5916                                                        GFP_KERNEL);
5917         if (!mboxq) {
5918                 rc = -ENOMEM;
5919                 goto out_free_bsmbx;
5920         }
5921
5922         /* Check for NVMET being configured */
5923         phba->nvmet_support = 0;
5924         if (lpfc_enable_nvmet_cnt) {
5925
5926                 /* First get WWN of HBA instance */
5927                 lpfc_read_nv(phba, mboxq);
5928                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5929                 if (rc != MBX_SUCCESS) {
5930                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5931                                         "6016 Mailbox failed , mbxCmd x%x "
5932                                         "READ_NV, mbxStatus x%x\n",
5933                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5934                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
5935                         mempool_free(mboxq, phba->mbox_mem_pool);
5936                         rc = -EIO;
5937                         goto out_free_bsmbx;
5938                 }
5939                 mb = &mboxq->u.mb;
5940                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
5941                        sizeof(uint64_t));
5942                 wwn = cpu_to_be64(wwn);
5943                 phba->sli4_hba.wwnn.u.name = wwn;
5944                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
5945                        sizeof(uint64_t));
5946                 /* wwn is WWPN of HBA instance */
5947                 wwn = cpu_to_be64(wwn);
5948                 phba->sli4_hba.wwpn.u.name = wwn;
5949
5950                 /* Check to see if it matches any module parameter */
5951                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
5952                         if (wwn == lpfc_enable_nvmet[i]) {
5953 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
5954                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5955                                                 "6017 NVME Target %016llx\n",
5956                                                 wwn);
5957                                 phba->nvmet_support = 1; /* a match */
5958 #else
5959                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5960                                                 "6021 Can't enable NVME Target."
5961                                                 " NVME_TARGET_FC infrastructure"
5962                                                 " is not in kernel\n");
5963 #endif
5964                         }
5965                 }
5966         }
5967
5968         lpfc_nvme_mod_param_dep(phba);
5969
5970         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5971         lpfc_supported_pages(mboxq);
5972         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5973         if (!rc) {
5974                 mqe = &mboxq->u.mqe;
5975                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5976                        LPFC_MAX_SUPPORTED_PAGES);
5977                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5978                         switch (pn_page[i]) {
5979                         case LPFC_SLI4_PARAMETERS:
5980                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5981                                 break;
5982                         default:
5983                                 break;
5984                         }
5985                 }
5986                 /* Read the port's SLI4 Parameters capabilities if supported. */
5987                 if (phba->sli4_hba.pc_sli4_params.supported)
5988                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5989                 if (rc) {
5990                         mempool_free(mboxq, phba->mbox_mem_pool);
5991                         rc = -EIO;
5992                         goto out_free_bsmbx;
5993                 }
5994         }
5995
5996         /*
5997          * Get sli4 parameters that override parameters from Port capabilities.
5998          * If this call fails, it isn't critical unless the SLI4 parameters come
5999          * back in conflict.
6000          */
6001         rc = lpfc_get_sli4_parameters(phba, mboxq);
6002         if (rc) {
6003                 if (phba->sli4_hba.extents_in_use &&
6004                     phba->sli4_hba.rpi_hdrs_in_use) {
6005                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6006                                 "2999 Unsupported SLI4 Parameters "
6007                                 "Extents and RPI headers enabled.\n");
6008                 }
6009                 mempool_free(mboxq, phba->mbox_mem_pool);
6010                 goto out_free_bsmbx;
6011         }
6012
6013         mempool_free(mboxq, phba->mbox_mem_pool);
6014
6015         /* Verify OAS is supported */
6016         lpfc_sli4_oas_verify(phba);
6017         if (phba->cfg_fof)
6018                 fof_vectors = 1;
6019
6020         /* Verify all the SLI4 queues */
6021         rc = lpfc_sli4_queue_verify(phba);
6022         if (rc)
6023                 goto out_free_bsmbx;
6024
6025         /* Create driver internal CQE event pool */
6026         rc = lpfc_sli4_cq_event_pool_create(phba);
6027         if (rc)
6028                 goto out_free_bsmbx;
6029
6030         /* Initialize sgl lists per host */
6031         lpfc_init_sgl_list(phba);
6032
6033         /* Allocate and initialize active sgl array */
6034         rc = lpfc_init_active_sgl_array(phba);
6035         if (rc) {
6036                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6037                                 "1430 Failed to initialize sgl list.\n");
6038                 goto out_destroy_cq_event_pool;
6039         }
6040         rc = lpfc_sli4_init_rpi_hdrs(phba);
6041         if (rc) {
6042                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6043                                 "1432 Failed to initialize rpi headers.\n");
6044                 goto out_free_active_sgl;
6045         }
6046
6047         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6048         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6049         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
6050                                          GFP_KERNEL);
6051         if (!phba->fcf.fcf_rr_bmask) {
6052                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6053                                 "2759 Failed allocate memory for FCF round "
6054                                 "robin failover bmask\n");
6055                 rc = -ENOMEM;
6056                 goto out_remove_rpi_hdrs;
6057         }
6058
6059         phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6060                                                 sizeof(struct lpfc_hba_eq_hdl),
6061                                                 GFP_KERNEL);
6062         if (!phba->sli4_hba.hba_eq_hdl) {
6063                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6064                                 "2572 Failed allocate memory for "
6065                                 "fast-path per-EQ handle array\n");
6066                 rc = -ENOMEM;
6067                 goto out_free_fcf_rr_bmask;
6068         }
6069
6070         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6071                                         sizeof(struct lpfc_vector_map_info),
6072                                         GFP_KERNEL);
6073         if (!phba->sli4_hba.cpu_map) {
6074                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6075                                 "3327 Failed allocate memory for msi-x "
6076                                 "interrupt vector mapping\n");
6077                 rc = -ENOMEM;
6078                 goto out_free_hba_eq_hdl;
6079         }
6080         if (lpfc_used_cpu == NULL) {
6081                 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6082                                                 GFP_KERNEL);
6083                 if (!lpfc_used_cpu) {
6084                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6085                                         "3335 Failed allocate memory for msi-x "
6086                                         "interrupt vector mapping\n");
6087                         kfree(phba->sli4_hba.cpu_map);
6088                         rc = -ENOMEM;
6089                         goto out_free_hba_eq_hdl;
6090                 }
6091                 for (i = 0; i < lpfc_present_cpu; i++)
6092                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6093         }
6094
6095         /*
6096          * Enable sr-iov virtual functions if supported and configured
6097          * through the module parameter.
6098          */
6099         if (phba->cfg_sriov_nr_virtfn > 0) {
6100                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6101                                                  phba->cfg_sriov_nr_virtfn);
6102                 if (rc) {
6103                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6104                                         "3020 Requested number of SR-IOV "
6105                                         "virtual functions (%d) is not "
6106                                         "supported\n",
6107                                         phba->cfg_sriov_nr_virtfn);
6108                         phba->cfg_sriov_nr_virtfn = 0;
6109                 }
6110         }
6111
6112         return 0;
6113
6114 out_free_hba_eq_hdl:
6115         kfree(phba->sli4_hba.hba_eq_hdl);
6116 out_free_fcf_rr_bmask:
6117         kfree(phba->fcf.fcf_rr_bmask);
6118 out_remove_rpi_hdrs:
6119         lpfc_sli4_remove_rpi_hdrs(phba);
6120 out_free_active_sgl:
6121         lpfc_free_active_sgl(phba);
6122 out_destroy_cq_event_pool:
6123         lpfc_sli4_cq_event_pool_destroy(phba);
6124 out_free_bsmbx:
6125         lpfc_destroy_bootstrap_mbox(phba);
6126 out_free_mem:
6127         lpfc_mem_free(phba);
6128         return rc;
6129 }
6130
6131 /**
6132  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6133  * @phba: pointer to lpfc hba data structure.
6134  *
6135  * This routine is invoked to unset the driver internal resources set up
6136  * specific for supporting the SLI-4 HBA device it attached to.
6137  **/
6138 static void
6139 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6140 {
6141         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6142
6143         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6144         kfree(phba->sli4_hba.cpu_map);
6145         phba->sli4_hba.num_present_cpu = 0;
6146         phba->sli4_hba.num_online_cpu = 0;
6147         phba->sli4_hba.curr_disp_cpu = 0;
6148
6149         /* Free memory allocated for fast-path work queue handles */
6150         kfree(phba->sli4_hba.hba_eq_hdl);
6151
6152         /* Free the allocated rpi headers. */
6153         lpfc_sli4_remove_rpi_hdrs(phba);
6154         lpfc_sli4_remove_rpis(phba);
6155
6156         /* Free eligible FCF index bmask */
6157         kfree(phba->fcf.fcf_rr_bmask);
6158
6159         /* Free the ELS sgl list */
6160         lpfc_free_active_sgl(phba);
6161         lpfc_free_els_sgl_list(phba);
6162         lpfc_free_nvmet_sgl_list(phba);
6163
6164         /* Free the completion queue EQ event pool */
6165         lpfc_sli4_cq_event_release_all(phba);
6166         lpfc_sli4_cq_event_pool_destroy(phba);
6167
6168         /* Release resource identifiers. */
6169         lpfc_sli4_dealloc_resource_identifiers(phba);
6170
6171         /* Free the bsmbx region. */
6172         lpfc_destroy_bootstrap_mbox(phba);
6173
6174         /* Free the SLI Layer memory with SLI4 HBAs */
6175         lpfc_mem_free_all(phba);
6176
6177         /* Free the current connect table */
6178         list_for_each_entry_safe(conn_entry, next_conn_entry,
6179                 &phba->fcf_conn_rec_list, list) {
6180                 list_del_init(&conn_entry->list);
6181                 kfree(conn_entry);
6182         }
6183
6184         return;
6185 }
6186
6187 /**
6188  * lpfc_init_api_table_setup - Set up init api function jump table
6189  * @phba: The hba struct for which this call is being executed.
6190  * @dev_grp: The HBA PCI-Device group number.
6191  *
6192  * This routine sets up the device INIT interface API function jump table
6193  * in @phba struct.
6194  *
6195  * Returns: 0 - success, -ENODEV - failure.
6196  **/
6197 int
6198 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6199 {
6200         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6201         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6202         phba->lpfc_selective_reset = lpfc_selective_reset;
6203         switch (dev_grp) {
6204         case LPFC_PCI_DEV_LP:
6205                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6206                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6207                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6208                 break;
6209         case LPFC_PCI_DEV_OC:
6210                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6211                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6212                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6213                 break;
6214         default:
6215                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6216                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6217                                 dev_grp);
6218                 return -ENODEV;
6219                 break;
6220         }
6221         return 0;
6222 }
6223
6224 /**
6225  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6226  * @phba: pointer to lpfc hba data structure.
6227  *
6228  * This routine is invoked to set up the driver internal resources after the
6229  * device specific resource setup to support the HBA device it attached to.
6230  *
6231  * Return codes
6232  *      0 - successful
6233  *      other values - error
6234  **/
6235 static int
6236 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6237 {
6238         int error;
6239
6240         /* Startup the kernel thread for this host adapter. */
6241         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6242                                           "lpfc_worker_%d", phba->brd_no);
6243         if (IS_ERR(phba->worker_thread)) {
6244                 error = PTR_ERR(phba->worker_thread);
6245                 return error;
6246         }
6247
6248         return 0;
6249 }
6250
6251 /**
6252  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6253  * @phba: pointer to lpfc hba data structure.
6254  *
6255  * This routine is invoked to unset the driver internal resources set up after
6256  * the device specific resource setup for supporting the HBA device it
6257  * attached to.
6258  **/
6259 static void
6260 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6261 {
6262         /* Stop kernel worker thread */
6263         kthread_stop(phba->worker_thread);
6264 }
6265
6266 /**
6267  * lpfc_free_iocb_list - Free iocb list.
6268  * @phba: pointer to lpfc hba data structure.
6269  *
6270  * This routine is invoked to free the driver's IOCB list and memory.
6271  **/
6272 static void
6273 lpfc_free_iocb_list(struct lpfc_hba *phba)
6274 {
6275         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6276
6277         spin_lock_irq(&phba->hbalock);
6278         list_for_each_entry_safe(iocbq_entry, iocbq_next,
6279                                  &phba->lpfc_iocb_list, list) {
6280                 list_del(&iocbq_entry->list);
6281                 kfree(iocbq_entry);
6282                 phba->total_iocbq_bufs--;
6283         }
6284         spin_unlock_irq(&phba->hbalock);
6285
6286         return;
6287 }
6288
6289 /**
6290  * lpfc_init_iocb_list - Allocate and initialize iocb list.
6291  * @phba: pointer to lpfc hba data structure.
6292  *
6293  * This routine is invoked to allocate and initizlize the driver's IOCB
6294  * list and set up the IOCB tag array accordingly.
6295  *
6296  * Return codes
6297  *      0 - successful
6298  *      other values - error
6299  **/
6300 static int
6301 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6302 {
6303         struct lpfc_iocbq *iocbq_entry = NULL;
6304         uint16_t iotag;
6305         int i;
6306
6307         /* Initialize and populate the iocb list per host.  */
6308         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6309         for (i = 0; i < iocb_count; i++) {
6310                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6311                 if (iocbq_entry == NULL) {
6312                         printk(KERN_ERR "%s: only allocated %d iocbs of "
6313                                 "expected %d count. Unloading driver.\n",
6314                                 __func__, i, LPFC_IOCB_LIST_CNT);
6315                         goto out_free_iocbq;
6316                 }
6317
6318                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6319                 if (iotag == 0) {
6320                         kfree(iocbq_entry);
6321                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
6322                                 "Unloading driver.\n", __func__);
6323                         goto out_free_iocbq;
6324                 }
6325                 iocbq_entry->sli4_lxritag = NO_XRI;
6326                 iocbq_entry->sli4_xritag = NO_XRI;
6327
6328                 spin_lock_irq(&phba->hbalock);
6329                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6330                 phba->total_iocbq_bufs++;
6331                 spin_unlock_irq(&phba->hbalock);
6332         }
6333
6334         return 0;
6335
6336 out_free_iocbq:
6337         lpfc_free_iocb_list(phba);
6338
6339         return -ENOMEM;
6340 }
6341
6342 /**
6343  * lpfc_free_sgl_list - Free a given sgl list.
6344  * @phba: pointer to lpfc hba data structure.
6345  * @sglq_list: pointer to the head of sgl list.
6346  *
6347  * This routine is invoked to free a give sgl list and memory.
6348  **/
6349 void
6350 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6351 {
6352         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6353
6354         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6355                 list_del(&sglq_entry->list);
6356                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6357                 kfree(sglq_entry);
6358         }
6359 }
6360
6361 /**
6362  * lpfc_free_els_sgl_list - Free els sgl list.
6363  * @phba: pointer to lpfc hba data structure.
6364  *
6365  * This routine is invoked to free the driver's els sgl list and memory.
6366  **/
6367 static void
6368 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6369 {
6370         LIST_HEAD(sglq_list);
6371
6372         /* Retrieve all els sgls from driver list */
6373         spin_lock_irq(&phba->hbalock);
6374         spin_lock(&phba->sli4_hba.sgl_list_lock);
6375         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6376         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6377         spin_unlock_irq(&phba->hbalock);
6378
6379         /* Now free the sgl list */
6380         lpfc_free_sgl_list(phba, &sglq_list);
6381 }
6382
6383 /**
6384  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6385  * @phba: pointer to lpfc hba data structure.
6386  *
6387  * This routine is invoked to free the driver's nvmet sgl list and memory.
6388  **/
6389 static void
6390 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6391 {
6392         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6393         LIST_HEAD(sglq_list);
6394
6395         /* Retrieve all nvmet sgls from driver list */
6396         spin_lock_irq(&phba->hbalock);
6397         spin_lock(&phba->sli4_hba.sgl_list_lock);
6398         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6399         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6400         spin_unlock_irq(&phba->hbalock);
6401
6402         /* Now free the sgl list */
6403         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6404                 list_del(&sglq_entry->list);
6405                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6406                 kfree(sglq_entry);
6407         }
6408 }
6409
6410 /**
6411  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6412  * @phba: pointer to lpfc hba data structure.
6413  *
6414  * This routine is invoked to allocate the driver's active sgl memory.
6415  * This array will hold the sglq_entry's for active IOs.
6416  **/
6417 static int
6418 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6419 {
6420         int size;
6421         size = sizeof(struct lpfc_sglq *);
6422         size *= phba->sli4_hba.max_cfg_param.max_xri;
6423
6424         phba->sli4_hba.lpfc_sglq_active_list =
6425                 kzalloc(size, GFP_KERNEL);
6426         if (!phba->sli4_hba.lpfc_sglq_active_list)
6427                 return -ENOMEM;
6428         return 0;
6429 }
6430
6431 /**
6432  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6433  * @phba: pointer to lpfc hba data structure.
6434  *
6435  * This routine is invoked to walk through the array of active sglq entries
6436  * and free all of the resources.
6437  * This is just a place holder for now.
6438  **/
6439 static void
6440 lpfc_free_active_sgl(struct lpfc_hba *phba)
6441 {
6442         kfree(phba->sli4_hba.lpfc_sglq_active_list);
6443 }
6444
6445 /**
6446  * lpfc_init_sgl_list - Allocate and initialize sgl list.
6447  * @phba: pointer to lpfc hba data structure.
6448  *
6449  * This routine is invoked to allocate and initizlize the driver's sgl
6450  * list and set up the sgl xritag tag array accordingly.
6451  *
6452  **/
6453 static void
6454 lpfc_init_sgl_list(struct lpfc_hba *phba)
6455 {
6456         /* Initialize and populate the sglq list per host/VF. */
6457         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6458         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6459         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6460         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6461
6462         /* els xri-sgl book keeping */
6463         phba->sli4_hba.els_xri_cnt = 0;
6464
6465         /* scsi xri-buffer book keeping */
6466         phba->sli4_hba.scsi_xri_cnt = 0;
6467
6468         /* nvme xri-buffer book keeping */
6469         phba->sli4_hba.nvme_xri_cnt = 0;
6470 }
6471
6472 /**
6473  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6474  * @phba: pointer to lpfc hba data structure.
6475  *
6476  * This routine is invoked to post rpi header templates to the
6477  * port for those SLI4 ports that do not support extents.  This routine
6478  * posts a PAGE_SIZE memory region to the port to hold up to
6479  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
6480  * and should be called only when interrupts are disabled.
6481  *
6482  * Return codes
6483  *      0 - successful
6484  *      -ERROR - otherwise.
6485  **/
6486 int
6487 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6488 {
6489         int rc = 0;
6490         struct lpfc_rpi_hdr *rpi_hdr;
6491
6492         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6493         if (!phba->sli4_hba.rpi_hdrs_in_use)
6494                 return rc;
6495         if (phba->sli4_hba.extents_in_use)
6496                 return -EIO;
6497
6498         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6499         if (!rpi_hdr) {
6500                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6501                                 "0391 Error during rpi post operation\n");
6502                 lpfc_sli4_remove_rpis(phba);
6503                 rc = -ENODEV;
6504         }
6505
6506         return rc;
6507 }
6508
6509 /**
6510  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6511  * @phba: pointer to lpfc hba data structure.
6512  *
6513  * This routine is invoked to allocate a single 4KB memory region to
6514  * support rpis and stores them in the phba.  This single region
6515  * provides support for up to 64 rpis.  The region is used globally
6516  * by the device.
6517  *
6518  * Returns:
6519  *   A valid rpi hdr on success.
6520  *   A NULL pointer on any failure.
6521  **/
6522 struct lpfc_rpi_hdr *
6523 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6524 {
6525         uint16_t rpi_limit, curr_rpi_range;
6526         struct lpfc_dmabuf *dmabuf;
6527         struct lpfc_rpi_hdr *rpi_hdr;
6528         uint32_t rpi_count;
6529
6530         /*
6531          * If the SLI4 port supports extents, posting the rpi header isn't
6532          * required.  Set the expected maximum count and let the actual value
6533          * get set when extents are fully allocated.
6534          */
6535         if (!phba->sli4_hba.rpi_hdrs_in_use)
6536                 return NULL;
6537         if (phba->sli4_hba.extents_in_use)
6538                 return NULL;
6539
6540         /* The limit on the logical index is just the max_rpi count. */
6541         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6542         phba->sli4_hba.max_cfg_param.max_rpi - 1;
6543
6544         spin_lock_irq(&phba->hbalock);
6545         /*
6546          * Establish the starting RPI in this header block.  The starting
6547          * rpi is normalized to a zero base because the physical rpi is
6548          * port based.
6549          */
6550         curr_rpi_range = phba->sli4_hba.next_rpi;
6551         spin_unlock_irq(&phba->hbalock);
6552
6553         /*
6554          * The port has a limited number of rpis. The increment here
6555          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
6556          * and to allow the full max_rpi range per port.
6557          */
6558         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
6559                 rpi_count = rpi_limit - curr_rpi_range;
6560         else
6561                 rpi_count = LPFC_RPI_HDR_COUNT;
6562
6563         if (!rpi_count)
6564                 return NULL;
6565         /*
6566          * First allocate the protocol header region for the port.  The
6567          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6568          */
6569         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6570         if (!dmabuf)
6571                 return NULL;
6572
6573         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6574                                            LPFC_HDR_TEMPLATE_SIZE,
6575                                            &dmabuf->phys, GFP_KERNEL);
6576         if (!dmabuf->virt) {
6577                 rpi_hdr = NULL;
6578                 goto err_free_dmabuf;
6579         }
6580
6581         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6582                 rpi_hdr = NULL;
6583                 goto err_free_coherent;
6584         }
6585
6586         /* Save the rpi header data for cleanup later. */
6587         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6588         if (!rpi_hdr)
6589                 goto err_free_coherent;
6590
6591         rpi_hdr->dmabuf = dmabuf;
6592         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6593         rpi_hdr->page_count = 1;
6594         spin_lock_irq(&phba->hbalock);
6595
6596         /* The rpi_hdr stores the logical index only. */
6597         rpi_hdr->start_rpi = curr_rpi_range;
6598         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6599
6600         /*
6601          * The next_rpi stores the next logical module-64 rpi value used
6602          * to post physical rpis in subsequent rpi postings.
6603          */
6604         phba->sli4_hba.next_rpi += rpi_count;
6605         spin_unlock_irq(&phba->hbalock);
6606         return rpi_hdr;
6607
6608  err_free_coherent:
6609         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6610                           dmabuf->virt, dmabuf->phys);
6611  err_free_dmabuf:
6612         kfree(dmabuf);
6613         return NULL;
6614 }
6615
6616 /**
6617  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6618  * @phba: pointer to lpfc hba data structure.
6619  *
6620  * This routine is invoked to remove all memory resources allocated
6621  * to support rpis for SLI4 ports not supporting extents. This routine
6622  * presumes the caller has released all rpis consumed by fabric or port
6623  * logins and is prepared to have the header pages removed.
6624  **/
6625 void
6626 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6627 {
6628         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6629
6630         if (!phba->sli4_hba.rpi_hdrs_in_use)
6631                 goto exit;
6632
6633         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6634                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6635                 list_del(&rpi_hdr->list);
6636                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6637                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6638                 kfree(rpi_hdr->dmabuf);
6639                 kfree(rpi_hdr);
6640         }
6641  exit:
6642         /* There are no rpis available to the port now. */
6643         phba->sli4_hba.next_rpi = 0;
6644 }
6645
6646 /**
6647  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6648  * @pdev: pointer to pci device data structure.
6649  *
6650  * This routine is invoked to allocate the driver hba data structure for an
6651  * HBA device. If the allocation is successful, the phba reference to the
6652  * PCI device data structure is set.
6653  *
6654  * Return codes
6655  *      pointer to @phba - successful
6656  *      NULL - error
6657  **/
6658 static struct lpfc_hba *
6659 lpfc_hba_alloc(struct pci_dev *pdev)
6660 {
6661         struct lpfc_hba *phba;
6662
6663         /* Allocate memory for HBA structure */
6664         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6665         if (!phba) {
6666                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6667                 return NULL;
6668         }
6669
6670         /* Set reference to PCI device in HBA structure */
6671         phba->pcidev = pdev;
6672
6673         /* Assign an unused board number */
6674         phba->brd_no = lpfc_get_instance();
6675         if (phba->brd_no < 0) {
6676                 kfree(phba);
6677                 return NULL;
6678         }
6679         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6680
6681         spin_lock_init(&phba->ct_ev_lock);
6682         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6683
6684         return phba;
6685 }
6686
6687 /**
6688  * lpfc_hba_free - Free driver hba data structure with a device.
6689  * @phba: pointer to lpfc hba data structure.
6690  *
6691  * This routine is invoked to free the driver hba data structure with an
6692  * HBA device.
6693  **/
6694 static void
6695 lpfc_hba_free(struct lpfc_hba *phba)
6696 {
6697         /* Release the driver assigned board number */
6698         idr_remove(&lpfc_hba_index, phba->brd_no);
6699
6700         /* Free memory allocated with sli3 rings */
6701         kfree(phba->sli.sli3_ring);
6702         phba->sli.sli3_ring = NULL;
6703
6704         kfree(phba);
6705         return;
6706 }
6707
6708 /**
6709  * lpfc_create_shost - Create hba physical port with associated scsi host.
6710  * @phba: pointer to lpfc hba data structure.
6711  *
6712  * This routine is invoked to create HBA physical port and associate a SCSI
6713  * host with it.
6714  *
6715  * Return codes
6716  *      0 - successful
6717  *      other values - error
6718  **/
6719 static int
6720 lpfc_create_shost(struct lpfc_hba *phba)
6721 {
6722         struct lpfc_vport *vport;
6723         struct Scsi_Host  *shost;
6724
6725         /* Initialize HBA FC structure */
6726         phba->fc_edtov = FF_DEF_EDTOV;
6727         phba->fc_ratov = FF_DEF_RATOV;
6728         phba->fc_altov = FF_DEF_ALTOV;
6729         phba->fc_arbtov = FF_DEF_ARBTOV;
6730
6731         atomic_set(&phba->sdev_cnt, 0);
6732         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6733         if (!vport)
6734                 return -ENODEV;
6735
6736         shost = lpfc_shost_from_vport(vport);
6737         phba->pport = vport;
6738
6739         if (phba->nvmet_support) {
6740                 /* Only 1 vport (pport) will support NVME target */
6741                 if (phba->txrdy_payload_pool == NULL) {
6742                         phba->txrdy_payload_pool = pci_pool_create(
6743                                 "txrdy_pool", phba->pcidev,
6744                                 TXRDY_PAYLOAD_LEN, 16, 0);
6745                         if (phba->txrdy_payload_pool) {
6746                                 phba->targetport = NULL;
6747                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
6748                                 lpfc_printf_log(phba, KERN_INFO,
6749                                                 LOG_INIT | LOG_NVME_DISC,
6750                                                 "6076 NVME Target Found\n");
6751                         }
6752                 }
6753         }
6754
6755         lpfc_debugfs_initialize(vport);
6756         /* Put reference to SCSI host to driver's device private data */
6757         pci_set_drvdata(phba->pcidev, shost);
6758
6759         /*
6760          * At this point we are fully registered with PSA. In addition,
6761          * any initial discovery should be completed.
6762          */
6763         vport->load_flag |= FC_ALLOW_FDMI;
6764         if (phba->cfg_enable_SmartSAN ||
6765             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6766
6767                 /* Setup appropriate attribute masks */
6768                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6769                 if (phba->cfg_enable_SmartSAN)
6770                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6771                 else
6772                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6773         }
6774         return 0;
6775 }
6776
6777 /**
6778  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6779  * @phba: pointer to lpfc hba data structure.
6780  *
6781  * This routine is invoked to destroy HBA physical port and the associated
6782  * SCSI host.
6783  **/
6784 static void
6785 lpfc_destroy_shost(struct lpfc_hba *phba)
6786 {
6787         struct lpfc_vport *vport = phba->pport;
6788
6789         /* Destroy physical port that associated with the SCSI host */
6790         destroy_port(vport);
6791
6792         return;
6793 }
6794
6795 /**
6796  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6797  * @phba: pointer to lpfc hba data structure.
6798  * @shost: the shost to be used to detect Block guard settings.
6799  *
6800  * This routine sets up the local Block guard protocol settings for @shost.
6801  * This routine also allocates memory for debugging bg buffers.
6802  **/
6803 static void
6804 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6805 {
6806         uint32_t old_mask;
6807         uint32_t old_guard;
6808
6809         int pagecnt = 10;
6810         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6811                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6812                                 "1478 Registering BlockGuard with the "
6813                                 "SCSI layer\n");
6814
6815                 old_mask = phba->cfg_prot_mask;
6816                 old_guard = phba->cfg_prot_guard;
6817
6818                 /* Only allow supported values */
6819                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6820                         SHOST_DIX_TYPE0_PROTECTION |
6821                         SHOST_DIX_TYPE1_PROTECTION);
6822                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
6823                                          SHOST_DIX_GUARD_CRC);
6824
6825                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6826                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6827                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6828
6829                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6830                         if ((old_mask != phba->cfg_prot_mask) ||
6831                                 (old_guard != phba->cfg_prot_guard))
6832                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6833                                         "1475 Registering BlockGuard with the "
6834                                         "SCSI layer: mask %d  guard %d\n",
6835                                         phba->cfg_prot_mask,
6836                                         phba->cfg_prot_guard);
6837
6838                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
6839                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
6840                 } else
6841                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6842                                 "1479 Not Registering BlockGuard with the SCSI "
6843                                 "layer, Bad protection parameters: %d %d\n",
6844                                 old_mask, old_guard);
6845         }
6846
6847         if (!_dump_buf_data) {
6848                 while (pagecnt) {
6849                         spin_lock_init(&_dump_buf_lock);
6850                         _dump_buf_data =
6851                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6852                         if (_dump_buf_data) {
6853                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6854                                         "9043 BLKGRD: allocated %d pages for "
6855                                        "_dump_buf_data at 0x%p\n",
6856                                        (1 << pagecnt), _dump_buf_data);
6857                                 _dump_buf_data_order = pagecnt;
6858                                 memset(_dump_buf_data, 0,
6859                                        ((1 << PAGE_SHIFT) << pagecnt));
6860                                 break;
6861                         } else
6862                                 --pagecnt;
6863                 }
6864                 if (!_dump_buf_data_order)
6865                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6866                                 "9044 BLKGRD: ERROR unable to allocate "
6867                                "memory for hexdump\n");
6868         } else
6869                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6870                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6871                        "\n", _dump_buf_data);
6872         if (!_dump_buf_dif) {
6873                 while (pagecnt) {
6874                         _dump_buf_dif =
6875                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6876                         if (_dump_buf_dif) {
6877                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6878                                         "9046 BLKGRD: allocated %d pages for "
6879                                        "_dump_buf_dif at 0x%p\n",
6880                                        (1 << pagecnt), _dump_buf_dif);
6881                                 _dump_buf_dif_order = pagecnt;
6882                                 memset(_dump_buf_dif, 0,
6883                                        ((1 << PAGE_SHIFT) << pagecnt));
6884                                 break;
6885                         } else
6886                                 --pagecnt;
6887                 }
6888                 if (!_dump_buf_dif_order)
6889                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6890                         "9047 BLKGRD: ERROR unable to allocate "
6891                                "memory for hexdump\n");
6892         } else
6893                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6894                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6895                        _dump_buf_dif);
6896 }
6897
6898 /**
6899  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6900  * @phba: pointer to lpfc hba data structure.
6901  *
6902  * This routine is invoked to perform all the necessary post initialization
6903  * setup for the device.
6904  **/
6905 static void
6906 lpfc_post_init_setup(struct lpfc_hba *phba)
6907 {
6908         struct Scsi_Host  *shost;
6909         struct lpfc_adapter_event_header adapter_event;
6910
6911         /* Get the default values for Model Name and Description */
6912         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6913
6914         /*
6915          * hba setup may have changed the hba_queue_depth so we need to
6916          * adjust the value of can_queue.
6917          */
6918         shost = pci_get_drvdata(phba->pcidev);
6919         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6920         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6921                 lpfc_setup_bg(phba, shost);
6922
6923         lpfc_host_attrib_init(shost);
6924
6925         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6926                 spin_lock_irq(shost->host_lock);
6927                 lpfc_poll_start_timer(phba);
6928                 spin_unlock_irq(shost->host_lock);
6929         }
6930
6931         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6932                         "0428 Perform SCSI scan\n");
6933         /* Send board arrival event to upper layer */
6934         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6935         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6936         fc_host_post_vendor_event(shost, fc_get_event_number(),
6937                                   sizeof(adapter_event),
6938                                   (char *) &adapter_event,
6939                                   LPFC_NL_VENDOR_ID);
6940         return;
6941 }
6942
6943 /**
6944  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6945  * @phba: pointer to lpfc hba data structure.
6946  *
6947  * This routine is invoked to set up the PCI device memory space for device
6948  * with SLI-3 interface spec.
6949  *
6950  * Return codes
6951  *      0 - successful
6952  *      other values - error
6953  **/
6954 static int
6955 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6956 {
6957         struct pci_dev *pdev;
6958         unsigned long bar0map_len, bar2map_len;
6959         int i, hbq_count;
6960         void *ptr;
6961         int error = -ENODEV;
6962
6963         /* Obtain PCI device reference */
6964         if (!phba->pcidev)
6965                 return error;
6966         else
6967                 pdev = phba->pcidev;
6968
6969         /* Set the device DMA mask size */
6970         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6971          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6972                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6973                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6974                         return error;
6975                 }
6976         }
6977
6978         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6979          * required by each mapping.
6980          */
6981         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6982         bar0map_len = pci_resource_len(pdev, 0);
6983
6984         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6985         bar2map_len = pci_resource_len(pdev, 2);
6986
6987         /* Map HBA SLIM to a kernel virtual address. */
6988         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6989         if (!phba->slim_memmap_p) {
6990                 dev_printk(KERN_ERR, &pdev->dev,
6991                            "ioremap failed for SLIM memory.\n");
6992                 goto out;
6993         }
6994
6995         /* Map HBA Control Registers to a kernel virtual address. */
6996         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6997         if (!phba->ctrl_regs_memmap_p) {
6998                 dev_printk(KERN_ERR, &pdev->dev,
6999                            "ioremap failed for HBA control registers.\n");
7000                 goto out_iounmap_slim;
7001         }
7002
7003         /* Allocate memory for SLI-2 structures */
7004         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7005                                                 &phba->slim2p.phys, GFP_KERNEL);
7006         if (!phba->slim2p.virt)
7007                 goto out_iounmap;
7008
7009         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7010         phba->mbox_ext = (phba->slim2p.virt +
7011                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7012         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7013         phba->IOCBs = (phba->slim2p.virt +
7014                        offsetof(struct lpfc_sli2_slim, IOCBs));
7015
7016         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7017                                                  lpfc_sli_hbq_size(),
7018                                                  &phba->hbqslimp.phys,
7019                                                  GFP_KERNEL);
7020         if (!phba->hbqslimp.virt)
7021                 goto out_free_slim;
7022
7023         hbq_count = lpfc_sli_hbq_count();
7024         ptr = phba->hbqslimp.virt;
7025         for (i = 0; i < hbq_count; ++i) {
7026                 phba->hbqs[i].hbq_virt = ptr;
7027                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7028                 ptr += (lpfc_hbq_defs[i]->entry_count *
7029                         sizeof(struct lpfc_hbq_entry));
7030         }
7031         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7032         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7033
7034         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7035
7036         phba->MBslimaddr = phba->slim_memmap_p;
7037         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7038         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7039         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7040         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7041
7042         return 0;
7043
7044 out_free_slim:
7045         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7046                           phba->slim2p.virt, phba->slim2p.phys);
7047 out_iounmap:
7048         iounmap(phba->ctrl_regs_memmap_p);
7049 out_iounmap_slim:
7050         iounmap(phba->slim_memmap_p);
7051 out:
7052         return error;
7053 }
7054
7055 /**
7056  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7057  * @phba: pointer to lpfc hba data structure.
7058  *
7059  * This routine is invoked to unset the PCI device memory space for device
7060  * with SLI-3 interface spec.
7061  **/
7062 static void
7063 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7064 {
7065         struct pci_dev *pdev;
7066
7067         /* Obtain PCI device reference */
7068         if (!phba->pcidev)
7069                 return;
7070         else
7071                 pdev = phba->pcidev;
7072
7073         /* Free coherent DMA memory allocated */
7074         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7075                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7076         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7077                           phba->slim2p.virt, phba->slim2p.phys);
7078
7079         /* I/O memory unmap */
7080         iounmap(phba->ctrl_regs_memmap_p);
7081         iounmap(phba->slim_memmap_p);
7082
7083         return;
7084 }
7085
7086 /**
7087  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7088  * @phba: pointer to lpfc hba data structure.
7089  *
7090  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7091  * done and check status.
7092  *
7093  * Return 0 if successful, otherwise -ENODEV.
7094  **/
7095 int
7096 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7097 {
7098         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7099         struct lpfc_register reg_data;
7100         int i, port_error = 0;
7101         uint32_t if_type;
7102
7103         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7104         memset(&reg_data, 0, sizeof(reg_data));
7105         if (!phba->sli4_hba.PSMPHRregaddr)
7106                 return -ENODEV;
7107
7108         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7109         for (i = 0; i < 3000; i++) {
7110                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7111                         &portsmphr_reg.word0) ||
7112                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7113                         /* Port has a fatal POST error, break out */
7114                         port_error = -ENODEV;
7115                         break;
7116                 }
7117                 if (LPFC_POST_STAGE_PORT_READY ==
7118                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7119                         break;
7120                 msleep(10);
7121         }
7122
7123         /*
7124          * If there was a port error during POST, then don't proceed with
7125          * other register reads as the data may not be valid.  Just exit.
7126          */
7127         if (port_error) {
7128                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7129                         "1408 Port Failed POST - portsmphr=0x%x, "
7130                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7131                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7132                         portsmphr_reg.word0,
7133                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7134                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7135                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7136                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7137                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7138                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7139                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7140                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7141         } else {
7142                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7143                                 "2534 Device Info: SLIFamily=0x%x, "
7144                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7145                                 "SLIHint_2=0x%x, FT=0x%x\n",
7146                                 bf_get(lpfc_sli_intf_sli_family,
7147                                        &phba->sli4_hba.sli_intf),
7148                                 bf_get(lpfc_sli_intf_slirev,
7149                                        &phba->sli4_hba.sli_intf),
7150                                 bf_get(lpfc_sli_intf_if_type,
7151                                        &phba->sli4_hba.sli_intf),
7152                                 bf_get(lpfc_sli_intf_sli_hint1,
7153                                        &phba->sli4_hba.sli_intf),
7154                                 bf_get(lpfc_sli_intf_sli_hint2,
7155                                        &phba->sli4_hba.sli_intf),
7156                                 bf_get(lpfc_sli_intf_func_type,
7157                                        &phba->sli4_hba.sli_intf));
7158                 /*
7159                  * Check for other Port errors during the initialization
7160                  * process.  Fail the load if the port did not come up
7161                  * correctly.
7162                  */
7163                 if_type = bf_get(lpfc_sli_intf_if_type,
7164                                  &phba->sli4_hba.sli_intf);
7165                 switch (if_type) {
7166                 case LPFC_SLI_INTF_IF_TYPE_0:
7167                         phba->sli4_hba.ue_mask_lo =
7168                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7169                         phba->sli4_hba.ue_mask_hi =
7170                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7171                         uerrlo_reg.word0 =
7172                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7173                         uerrhi_reg.word0 =
7174                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7175                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7176                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7177                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7178                                                 "1422 Unrecoverable Error "
7179                                                 "Detected during POST "
7180                                                 "uerr_lo_reg=0x%x, "
7181                                                 "uerr_hi_reg=0x%x, "
7182                                                 "ue_mask_lo_reg=0x%x, "
7183                                                 "ue_mask_hi_reg=0x%x\n",
7184                                                 uerrlo_reg.word0,
7185                                                 uerrhi_reg.word0,
7186                                                 phba->sli4_hba.ue_mask_lo,
7187                                                 phba->sli4_hba.ue_mask_hi);
7188                                 port_error = -ENODEV;
7189                         }
7190                         break;
7191                 case LPFC_SLI_INTF_IF_TYPE_2:
7192                         /* Final checks.  The port status should be clean. */
7193                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7194                                 &reg_data.word0) ||
7195                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7196                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7197                                 phba->work_status[0] =
7198                                         readl(phba->sli4_hba.u.if_type2.
7199                                               ERR1regaddr);
7200                                 phba->work_status[1] =
7201                                         readl(phba->sli4_hba.u.if_type2.
7202                                               ERR2regaddr);
7203                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7204                                         "2888 Unrecoverable port error "
7205                                         "following POST: port status reg "
7206                                         "0x%x, port_smphr reg 0x%x, "
7207                                         "error 1=0x%x, error 2=0x%x\n",
7208                                         reg_data.word0,
7209                                         portsmphr_reg.word0,
7210                                         phba->work_status[0],
7211                                         phba->work_status[1]);
7212                                 port_error = -ENODEV;
7213                         }
7214                         break;
7215                 case LPFC_SLI_INTF_IF_TYPE_1:
7216                 default:
7217                         break;
7218                 }
7219         }
7220         return port_error;
7221 }
7222
7223 /**
7224  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7225  * @phba: pointer to lpfc hba data structure.
7226  * @if_type:  The SLI4 interface type getting configured.
7227  *
7228  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7229  * memory map.
7230  **/
7231 static void
7232 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7233 {
7234         switch (if_type) {
7235         case LPFC_SLI_INTF_IF_TYPE_0:
7236                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7237                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7238                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7239                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7240                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7241                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7242                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7243                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7244                 phba->sli4_hba.SLIINTFregaddr =
7245                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7246                 break;
7247         case LPFC_SLI_INTF_IF_TYPE_2:
7248                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7249                         phba->sli4_hba.conf_regs_memmap_p +
7250                                                 LPFC_CTL_PORT_ER1_OFFSET;
7251                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7252                         phba->sli4_hba.conf_regs_memmap_p +
7253                                                 LPFC_CTL_PORT_ER2_OFFSET;
7254                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7255                         phba->sli4_hba.conf_regs_memmap_p +
7256                                                 LPFC_CTL_PORT_CTL_OFFSET;
7257                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7258                         phba->sli4_hba.conf_regs_memmap_p +
7259                                                 LPFC_CTL_PORT_STA_OFFSET;
7260                 phba->sli4_hba.SLIINTFregaddr =
7261                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7262                 phba->sli4_hba.PSMPHRregaddr =
7263                         phba->sli4_hba.conf_regs_memmap_p +
7264                                                 LPFC_CTL_PORT_SEM_OFFSET;
7265                 phba->sli4_hba.RQDBregaddr =
7266                         phba->sli4_hba.conf_regs_memmap_p +
7267                                                 LPFC_ULP0_RQ_DOORBELL;
7268                 phba->sli4_hba.WQDBregaddr =
7269                         phba->sli4_hba.conf_regs_memmap_p +
7270                                                 LPFC_ULP0_WQ_DOORBELL;
7271                 phba->sli4_hba.EQCQDBregaddr =
7272                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7273                 phba->sli4_hba.MQDBregaddr =
7274                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7275                 phba->sli4_hba.BMBXregaddr =
7276                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7277                 break;
7278         case LPFC_SLI_INTF_IF_TYPE_1:
7279         default:
7280                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7281                            "FATAL - unsupported SLI4 interface type - %d\n",
7282                            if_type);
7283                 break;
7284         }
7285 }
7286
7287 /**
7288  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7289  * @phba: pointer to lpfc hba data structure.
7290  *
7291  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
7292  * memory map.
7293  **/
7294 static void
7295 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
7296 {
7297         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7298                 LPFC_SLIPORT_IF0_SMPHR;
7299         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7300                 LPFC_HST_ISR0;
7301         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7302                 LPFC_HST_IMR0;
7303         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7304                 LPFC_HST_ISCR0;
7305 }
7306
7307 /**
7308  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7309  * @phba: pointer to lpfc hba data structure.
7310  * @vf: virtual function number
7311  *
7312  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7313  * based on the given viftual function number, @vf.
7314  *
7315  * Return 0 if successful, otherwise -ENODEV.
7316  **/
7317 static int
7318 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7319 {
7320         if (vf > LPFC_VIR_FUNC_MAX)
7321                 return -ENODEV;
7322
7323         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7324                                 vf * LPFC_VFR_PAGE_SIZE +
7325                                         LPFC_ULP0_RQ_DOORBELL);
7326         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7327                                 vf * LPFC_VFR_PAGE_SIZE +
7328                                         LPFC_ULP0_WQ_DOORBELL);
7329         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7330                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
7331         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7332                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7333         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7334                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7335         return 0;
7336 }
7337
7338 /**
7339  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7340  * @phba: pointer to lpfc hba data structure.
7341  *
7342  * This routine is invoked to create the bootstrap mailbox
7343  * region consistent with the SLI-4 interface spec.  This
7344  * routine allocates all memory necessary to communicate
7345  * mailbox commands to the port and sets up all alignment
7346  * needs.  No locks are expected to be held when calling
7347  * this routine.
7348  *
7349  * Return codes
7350  *      0 - successful
7351  *      -ENOMEM - could not allocated memory.
7352  **/
7353 static int
7354 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7355 {
7356         uint32_t bmbx_size;
7357         struct lpfc_dmabuf *dmabuf;
7358         struct dma_address *dma_address;
7359         uint32_t pa_addr;
7360         uint64_t phys_addr;
7361
7362         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7363         if (!dmabuf)
7364                 return -ENOMEM;
7365
7366         /*
7367          * The bootstrap mailbox region is comprised of 2 parts
7368          * plus an alignment restriction of 16 bytes.
7369          */
7370         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7371         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
7372                                            &dmabuf->phys, GFP_KERNEL);
7373         if (!dmabuf->virt) {
7374                 kfree(dmabuf);
7375                 return -ENOMEM;
7376         }
7377
7378         /*
7379          * Initialize the bootstrap mailbox pointers now so that the register
7380          * operations are simple later.  The mailbox dma address is required
7381          * to be 16-byte aligned.  Also align the virtual memory as each
7382          * maibox is copied into the bmbx mailbox region before issuing the
7383          * command to the port.
7384          */
7385         phba->sli4_hba.bmbx.dmabuf = dmabuf;
7386         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7387
7388         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7389                                               LPFC_ALIGN_16_BYTE);
7390         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7391                                               LPFC_ALIGN_16_BYTE);
7392
7393         /*
7394          * Set the high and low physical addresses now.  The SLI4 alignment
7395          * requirement is 16 bytes and the mailbox is posted to the port
7396          * as two 30-bit addresses.  The other data is a bit marking whether
7397          * the 30-bit address is the high or low address.
7398          * Upcast bmbx aphys to 64bits so shift instruction compiles
7399          * clean on 32 bit machines.
7400          */
7401         dma_address = &phba->sli4_hba.bmbx.dma_address;
7402         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7403         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7404         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7405                                            LPFC_BMBX_BIT1_ADDR_HI);
7406
7407         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7408         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7409                                            LPFC_BMBX_BIT1_ADDR_LO);
7410         return 0;
7411 }
7412
7413 /**
7414  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7415  * @phba: pointer to lpfc hba data structure.
7416  *
7417  * This routine is invoked to teardown the bootstrap mailbox
7418  * region and release all host resources. This routine requires
7419  * the caller to ensure all mailbox commands recovered, no
7420  * additional mailbox comands are sent, and interrupts are disabled
7421  * before calling this routine.
7422  *
7423  **/
7424 static void
7425 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7426 {
7427         dma_free_coherent(&phba->pcidev->dev,
7428                           phba->sli4_hba.bmbx.bmbx_size,
7429                           phba->sli4_hba.bmbx.dmabuf->virt,
7430                           phba->sli4_hba.bmbx.dmabuf->phys);
7431
7432         kfree(phba->sli4_hba.bmbx.dmabuf);
7433         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7434 }
7435
7436 /**
7437  * lpfc_sli4_read_config - Get the config parameters.
7438  * @phba: pointer to lpfc hba data structure.
7439  *
7440  * This routine is invoked to read the configuration parameters from the HBA.
7441  * The configuration parameters are used to set the base and maximum values
7442  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7443  * allocation for the port.
7444  *
7445  * Return codes
7446  *      0 - successful
7447  *      -ENOMEM - No available memory
7448  *      -EIO - The mailbox failed to complete successfully.
7449  **/
7450 int
7451 lpfc_sli4_read_config(struct lpfc_hba *phba)
7452 {
7453         LPFC_MBOXQ_t *pmb;
7454         struct lpfc_mbx_read_config *rd_config;
7455         union  lpfc_sli4_cfg_shdr *shdr;
7456         uint32_t shdr_status, shdr_add_status;
7457         struct lpfc_mbx_get_func_cfg *get_func_cfg;
7458         struct lpfc_rsrc_desc_fcfcoe *desc;
7459         char *pdesc_0;
7460         uint16_t forced_link_speed;
7461         uint32_t if_type;
7462         int length, i, rc = 0, rc2;
7463
7464         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7465         if (!pmb) {
7466                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7467                                 "2011 Unable to allocate memory for issuing "
7468                                 "SLI_CONFIG_SPECIAL mailbox command\n");
7469                 return -ENOMEM;
7470         }
7471
7472         lpfc_read_config(phba, pmb);
7473
7474         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7475         if (rc != MBX_SUCCESS) {
7476                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7477                         "2012 Mailbox failed , mbxCmd x%x "
7478                         "READ_CONFIG, mbxStatus x%x\n",
7479                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
7480                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
7481                 rc = -EIO;
7482         } else {
7483                 rd_config = &pmb->u.mqe.un.rd_config;
7484                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7485                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7486                         phba->sli4_hba.lnk_info.lnk_tp =
7487                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7488                         phba->sli4_hba.lnk_info.lnk_no =
7489                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7490                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7491                                         "3081 lnk_type:%d, lnk_numb:%d\n",
7492                                         phba->sli4_hba.lnk_info.lnk_tp,
7493                                         phba->sli4_hba.lnk_info.lnk_no);
7494                 } else
7495                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7496                                         "3082 Mailbox (x%x) returned ldv:x0\n",
7497                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
7498                 phba->sli4_hba.extents_in_use =
7499                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7500                 phba->sli4_hba.max_cfg_param.max_xri =
7501                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7502                 phba->sli4_hba.max_cfg_param.xri_base =
7503                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7504                 phba->sli4_hba.max_cfg_param.max_vpi =
7505                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7506                 phba->sli4_hba.max_cfg_param.vpi_base =
7507                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7508                 phba->sli4_hba.max_cfg_param.max_rpi =
7509                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7510                 phba->sli4_hba.max_cfg_param.rpi_base =
7511                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7512                 phba->sli4_hba.max_cfg_param.max_vfi =
7513                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7514                 phba->sli4_hba.max_cfg_param.vfi_base =
7515                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7516                 phba->sli4_hba.max_cfg_param.max_fcfi =
7517                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7518                 phba->sli4_hba.max_cfg_param.max_eq =
7519                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7520                 phba->sli4_hba.max_cfg_param.max_rq =
7521                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7522                 phba->sli4_hba.max_cfg_param.max_wq =
7523                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7524                 phba->sli4_hba.max_cfg_param.max_cq =
7525                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7526                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7527                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7528                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7529                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7530                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7531                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7532                 phba->max_vports = phba->max_vpi;
7533                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7534                                 "2003 cfg params Extents? %d "
7535                                 "XRI(B:%d M:%d), "
7536                                 "VPI(B:%d M:%d) "
7537                                 "VFI(B:%d M:%d) "
7538                                 "RPI(B:%d M:%d) "
7539                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7540                                 phba->sli4_hba.extents_in_use,
7541                                 phba->sli4_hba.max_cfg_param.xri_base,
7542                                 phba->sli4_hba.max_cfg_param.max_xri,
7543                                 phba->sli4_hba.max_cfg_param.vpi_base,
7544                                 phba->sli4_hba.max_cfg_param.max_vpi,
7545                                 phba->sli4_hba.max_cfg_param.vfi_base,
7546                                 phba->sli4_hba.max_cfg_param.max_vfi,
7547                                 phba->sli4_hba.max_cfg_param.rpi_base,
7548                                 phba->sli4_hba.max_cfg_param.max_rpi,
7549                                 phba->sli4_hba.max_cfg_param.max_fcfi,
7550                                 phba->sli4_hba.max_cfg_param.max_eq,
7551                                 phba->sli4_hba.max_cfg_param.max_cq,
7552                                 phba->sli4_hba.max_cfg_param.max_wq,
7553                                 phba->sli4_hba.max_cfg_param.max_rq);
7554
7555         }
7556
7557         if (rc)
7558                 goto read_cfg_out;
7559
7560         /* Update link speed if forced link speed is supported */
7561         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7562         if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7563                 forced_link_speed =
7564                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
7565                 if (forced_link_speed) {
7566                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
7567
7568                         switch (forced_link_speed) {
7569                         case LINK_SPEED_1G:
7570                                 phba->cfg_link_speed =
7571                                         LPFC_USER_LINK_SPEED_1G;
7572                                 break;
7573                         case LINK_SPEED_2G:
7574                                 phba->cfg_link_speed =
7575                                         LPFC_USER_LINK_SPEED_2G;
7576                                 break;
7577                         case LINK_SPEED_4G:
7578                                 phba->cfg_link_speed =
7579                                         LPFC_USER_LINK_SPEED_4G;
7580                                 break;
7581                         case LINK_SPEED_8G:
7582                                 phba->cfg_link_speed =
7583                                         LPFC_USER_LINK_SPEED_8G;
7584                                 break;
7585                         case LINK_SPEED_10G:
7586                                 phba->cfg_link_speed =
7587                                         LPFC_USER_LINK_SPEED_10G;
7588                                 break;
7589                         case LINK_SPEED_16G:
7590                                 phba->cfg_link_speed =
7591                                         LPFC_USER_LINK_SPEED_16G;
7592                                 break;
7593                         case LINK_SPEED_32G:
7594                                 phba->cfg_link_speed =
7595                                         LPFC_USER_LINK_SPEED_32G;
7596                                 break;
7597                         case 0xffff:
7598                                 phba->cfg_link_speed =
7599                                         LPFC_USER_LINK_SPEED_AUTO;
7600                                 break;
7601                         default:
7602                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7603                                                 "0047 Unrecognized link "
7604                                                 "speed : %d\n",
7605                                                 forced_link_speed);
7606                                 phba->cfg_link_speed =
7607                                         LPFC_USER_LINK_SPEED_AUTO;
7608                         }
7609                 }
7610         }
7611
7612         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
7613         length = phba->sli4_hba.max_cfg_param.max_xri -
7614                         lpfc_sli4_get_els_iocb_cnt(phba);
7615         if (phba->cfg_hba_queue_depth > length) {
7616                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7617                                 "3361 HBA queue depth changed from %d to %d\n",
7618                                 phba->cfg_hba_queue_depth, length);
7619                 phba->cfg_hba_queue_depth = length;
7620         }
7621
7622         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
7623             LPFC_SLI_INTF_IF_TYPE_2)
7624                 goto read_cfg_out;
7625
7626         /* get the pf# and vf# for SLI4 if_type 2 port */
7627         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7628                   sizeof(struct lpfc_sli4_cfg_mhdr));
7629         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7630                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7631                          length, LPFC_SLI4_MBX_EMBED);
7632
7633         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7634         shdr = (union lpfc_sli4_cfg_shdr *)
7635                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7636         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7637         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7638         if (rc2 || shdr_status || shdr_add_status) {
7639                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7640                                 "3026 Mailbox failed , mbxCmd x%x "
7641                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7642                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7643                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7644                 goto read_cfg_out;
7645         }
7646
7647         /* search for fc_fcoe resrouce descriptor */
7648         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7649
7650         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7651         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7652         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7653         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7654                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7655         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7656                 goto read_cfg_out;
7657
7658         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7659                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7660                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7661                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7662                         phba->sli4_hba.iov.pf_number =
7663                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7664                         phba->sli4_hba.iov.vf_number =
7665                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7666                         break;
7667                 }
7668         }
7669
7670         if (i < LPFC_RSRC_DESC_MAX_NUM)
7671                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7672                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7673                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7674                                 phba->sli4_hba.iov.vf_number);
7675         else
7676                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7677                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7678                                 "Resrouce Descriptor:x%x\n",
7679                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7680
7681 read_cfg_out:
7682         mempool_free(pmb, phba->mbox_mem_pool);
7683         return rc;
7684 }
7685
7686 /**
7687  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7688  * @phba: pointer to lpfc hba data structure.
7689  *
7690  * This routine is invoked to setup the port-side endian order when
7691  * the port if_type is 0.  This routine has no function for other
7692  * if_types.
7693  *
7694  * Return codes
7695  *      0 - successful
7696  *      -ENOMEM - No available memory
7697  *      -EIO - The mailbox failed to complete successfully.
7698  **/
7699 static int
7700 lpfc_setup_endian_order(struct lpfc_hba *phba)
7701 {
7702         LPFC_MBOXQ_t *mboxq;
7703         uint32_t if_type, rc = 0;
7704         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7705                                       HOST_ENDIAN_HIGH_WORD1};
7706
7707         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7708         switch (if_type) {
7709         case LPFC_SLI_INTF_IF_TYPE_0:
7710                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7711                                                        GFP_KERNEL);
7712                 if (!mboxq) {
7713                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7714                                         "0492 Unable to allocate memory for "
7715                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7716                                         "command\n");
7717                         return -ENOMEM;
7718                 }
7719
7720                 /*
7721                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7722                  * two words to contain special data values and no other data.
7723                  */
7724                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7725                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7726                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7727                 if (rc != MBX_SUCCESS) {
7728                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7729                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7730                                         "failed with status x%x\n",
7731                                         rc);
7732                         rc = -EIO;
7733                 }
7734                 mempool_free(mboxq, phba->mbox_mem_pool);
7735                 break;
7736         case LPFC_SLI_INTF_IF_TYPE_2:
7737         case LPFC_SLI_INTF_IF_TYPE_1:
7738         default:
7739                 break;
7740         }
7741         return rc;
7742 }
7743
7744 /**
7745  * lpfc_sli4_queue_verify - Verify and update EQ counts
7746  * @phba: pointer to lpfc hba data structure.
7747  *
7748  * This routine is invoked to check the user settable queue counts for EQs.
7749  * After this routine is called the counts will be set to valid values that
7750  * adhere to the constraints of the system's interrupt vectors and the port's
7751  * queue resources.
7752  *
7753  * Return codes
7754  *      0 - successful
7755  *      -ENOMEM - No available memory
7756  **/
7757 static int
7758 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7759 {
7760         int io_channel;
7761         int fof_vectors = phba->cfg_fof ? 1 : 0;
7762
7763         /*
7764          * Sanity check for configured queue parameters against the run-time
7765          * device parameters
7766          */
7767
7768         /* Sanity check on HBA EQ parameters */
7769         io_channel = phba->io_channel_irqs;
7770
7771         if (phba->sli4_hba.num_online_cpu < io_channel) {
7772                 lpfc_printf_log(phba,
7773                                 KERN_ERR, LOG_INIT,
7774                                 "3188 Reducing IO channels to match number of "
7775                                 "online CPUs: from %d to %d\n",
7776                                 io_channel, phba->sli4_hba.num_online_cpu);
7777                 io_channel = phba->sli4_hba.num_online_cpu;
7778         }
7779
7780         if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
7781                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7782                                 "2575 Reducing IO channels to match number of "
7783                                 "available EQs: from %d to %d\n",
7784                                 io_channel,
7785                                 phba->sli4_hba.max_cfg_param.max_eq);
7786                 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
7787         }
7788
7789         /* The actual number of FCP / NVME event queues adopted */
7790         if (io_channel != phba->io_channel_irqs)
7791                 phba->io_channel_irqs = io_channel;
7792         if (phba->cfg_fcp_io_channel > io_channel)
7793                 phba->cfg_fcp_io_channel = io_channel;
7794         if (phba->cfg_nvme_io_channel > io_channel)
7795                 phba->cfg_nvme_io_channel = io_channel;
7796         if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
7797                 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
7798
7799         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7800                         "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
7801                         phba->io_channel_irqs, phba->cfg_fcp_io_channel,
7802                         phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
7803
7804         /* Get EQ depth from module parameter, fake the default for now */
7805         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7806         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7807
7808         /* Get CQ depth from module parameter, fake the default for now */
7809         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7810         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7811         return 0;
7812 }
7813
7814 static int
7815 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
7816 {
7817         struct lpfc_queue *qdesc;
7818         int cnt;
7819
7820         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7821                                             phba->sli4_hba.cq_ecount);
7822         if (!qdesc) {
7823                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7824                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
7825                                 wqidx);
7826                 return 1;
7827         }
7828         phba->sli4_hba.nvme_cq[wqidx] = qdesc;
7829
7830         cnt = LPFC_NVME_WQSIZE;
7831         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt);
7832         if (!qdesc) {
7833                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7834                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
7835                                 wqidx);
7836                 return 1;
7837         }
7838         phba->sli4_hba.nvme_wq[wqidx] = qdesc;
7839         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
7840         return 0;
7841 }
7842
7843 static int
7844 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
7845 {
7846         struct lpfc_queue *qdesc;
7847         uint32_t wqesize;
7848
7849         /* Create Fast Path FCP CQs */
7850         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7851                                         phba->sli4_hba.cq_ecount);
7852         if (!qdesc) {
7853                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7854                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
7855                 return 1;
7856         }
7857         phba->sli4_hba.fcp_cq[wqidx] = qdesc;
7858
7859         /* Create Fast Path FCP WQs */
7860         wqesize = (phba->fcp_embed_io) ?
7861                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
7862         qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount);
7863         if (!qdesc) {
7864                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7865                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
7866                                 wqidx);
7867                 return 1;
7868         }
7869         phba->sli4_hba.fcp_wq[wqidx] = qdesc;
7870         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
7871         return 0;
7872 }
7873
7874 /**
7875  * lpfc_sli4_queue_create - Create all the SLI4 queues
7876  * @phba: pointer to lpfc hba data structure.
7877  *
7878  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7879  * operation. For each SLI4 queue type, the parameters such as queue entry
7880  * count (queue depth) shall be taken from the module parameter. For now,
7881  * we just use some constant number as place holder.
7882  *
7883  * Return codes
7884  *      0 - successful
7885  *      -ENOMEM - No availble memory
7886  *      -EIO - The mailbox failed to complete successfully.
7887  **/
7888 int
7889 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7890 {
7891         struct lpfc_queue *qdesc;
7892         int idx, io_channel;
7893
7894         /*
7895          * Create HBA Record arrays.
7896          * Both NVME and FCP will share that same vectors / EQs
7897          */
7898         io_channel = phba->io_channel_irqs;
7899         if (!io_channel)
7900                 return -ERANGE;
7901
7902         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7903         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7904         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7905         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7906         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7907         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7908         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7909         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7910         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7911         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7912
7913         phba->sli4_hba.hba_eq =  kcalloc(io_channel,
7914                                         sizeof(struct lpfc_queue *),
7915                                         GFP_KERNEL);
7916         if (!phba->sli4_hba.hba_eq) {
7917                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7918                         "2576 Failed allocate memory for "
7919                         "fast-path EQ record array\n");
7920                 goto out_error;
7921         }
7922
7923         if (phba->cfg_fcp_io_channel) {
7924                 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
7925                                                 sizeof(struct lpfc_queue *),
7926                                                 GFP_KERNEL);
7927                 if (!phba->sli4_hba.fcp_cq) {
7928                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7929                                         "2577 Failed allocate memory for "
7930                                         "fast-path CQ record array\n");
7931                         goto out_error;
7932                 }
7933                 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
7934                                                 sizeof(struct lpfc_queue *),
7935                                                 GFP_KERNEL);
7936                 if (!phba->sli4_hba.fcp_wq) {
7937                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7938                                         "2578 Failed allocate memory for "
7939                                         "fast-path FCP WQ record array\n");
7940                         goto out_error;
7941                 }
7942                 /*
7943                  * Since the first EQ can have multiple CQs associated with it,
7944                  * this array is used to quickly see if we have a FCP fast-path
7945                  * CQ match.
7946                  */
7947                 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
7948                                                         sizeof(uint16_t),
7949                                                         GFP_KERNEL);
7950                 if (!phba->sli4_hba.fcp_cq_map) {
7951                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7952                                         "2545 Failed allocate memory for "
7953                                         "fast-path CQ map\n");
7954                         goto out_error;
7955                 }
7956         }
7957
7958         if (phba->cfg_nvme_io_channel) {
7959                 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
7960                                                 sizeof(struct lpfc_queue *),
7961                                                 GFP_KERNEL);
7962                 if (!phba->sli4_hba.nvme_cq) {
7963                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7964                                         "6077 Failed allocate memory for "
7965                                         "fast-path CQ record array\n");
7966                         goto out_error;
7967                 }
7968
7969                 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
7970                                                 sizeof(struct lpfc_queue *),
7971                                                 GFP_KERNEL);
7972                 if (!phba->sli4_hba.nvme_wq) {
7973                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7974                                         "2581 Failed allocate memory for "
7975                                         "fast-path NVME WQ record array\n");
7976                         goto out_error;
7977                 }
7978
7979                 /*
7980                  * Since the first EQ can have multiple CQs associated with it,
7981                  * this array is used to quickly see if we have a NVME fast-path
7982                  * CQ match.
7983                  */
7984                 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
7985                                                         sizeof(uint16_t),
7986                                                         GFP_KERNEL);
7987                 if (!phba->sli4_hba.nvme_cq_map) {
7988                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7989                                         "6078 Failed allocate memory for "
7990                                         "fast-path CQ map\n");
7991                         goto out_error;
7992                 }
7993
7994                 if (phba->nvmet_support) {
7995                         phba->sli4_hba.nvmet_cqset = kcalloc(
7996                                         phba->cfg_nvmet_mrq,
7997                                         sizeof(struct lpfc_queue *),
7998                                         GFP_KERNEL);
7999                         if (!phba->sli4_hba.nvmet_cqset) {
8000                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8001                                         "3121 Fail allocate memory for "
8002                                         "fast-path CQ set array\n");
8003                                 goto out_error;
8004                         }
8005                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8006                                         phba->cfg_nvmet_mrq,
8007                                         sizeof(struct lpfc_queue *),
8008                                         GFP_KERNEL);
8009                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8010                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8011                                         "3122 Fail allocate memory for "
8012                                         "fast-path RQ set hdr array\n");
8013                                 goto out_error;
8014                         }
8015                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8016                                         phba->cfg_nvmet_mrq,
8017                                         sizeof(struct lpfc_queue *),
8018                                         GFP_KERNEL);
8019                         if (!phba->sli4_hba.nvmet_mrq_data) {
8020                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8021                                         "3124 Fail allocate memory for "
8022                                         "fast-path RQ set data array\n");
8023                                 goto out_error;
8024                         }
8025                 }
8026         }
8027
8028         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8029
8030         /* Create HBA Event Queues (EQs) */
8031         for (idx = 0; idx < io_channel; idx++) {
8032                 /* Create EQs */
8033                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
8034                                               phba->sli4_hba.eq_ecount);
8035                 if (!qdesc) {
8036                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8037                                         "0497 Failed allocate EQ (%d)\n", idx);
8038                         goto out_error;
8039                 }
8040                 phba->sli4_hba.hba_eq[idx] = qdesc;
8041         }
8042
8043         /* FCP and NVME io channels are not required to be balanced */
8044
8045         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8046                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8047                         goto out_error;
8048
8049         for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8050                 if (lpfc_alloc_nvme_wq_cq(phba, idx))
8051                         goto out_error;
8052
8053         if (phba->nvmet_support) {
8054                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8055                         qdesc = lpfc_sli4_queue_alloc(phba,
8056                                         phba->sli4_hba.cq_esize,
8057                                         phba->sli4_hba.cq_ecount);
8058                         if (!qdesc) {
8059                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8060                                         "3142 Failed allocate NVME "
8061                                         "CQ Set (%d)\n", idx);
8062                                 goto out_error;
8063                         }
8064                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8065                 }
8066         }
8067
8068         /*
8069          * Create Slow Path Completion Queues (CQs)
8070          */
8071
8072         /* Create slow-path Mailbox Command Complete Queue */
8073         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8074                                       phba->sli4_hba.cq_ecount);
8075         if (!qdesc) {
8076                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8077                                 "0500 Failed allocate slow-path mailbox CQ\n");
8078                 goto out_error;
8079         }
8080         phba->sli4_hba.mbx_cq = qdesc;
8081
8082         /* Create slow-path ELS Complete Queue */
8083         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8084                                       phba->sli4_hba.cq_ecount);
8085         if (!qdesc) {
8086                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8087                                 "0501 Failed allocate slow-path ELS CQ\n");
8088                 goto out_error;
8089         }
8090         phba->sli4_hba.els_cq = qdesc;
8091
8092
8093         /*
8094          * Create Slow Path Work Queues (WQs)
8095          */
8096
8097         /* Create Mailbox Command Queue */
8098
8099         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
8100                                       phba->sli4_hba.mq_ecount);
8101         if (!qdesc) {
8102                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8103                                 "0505 Failed allocate slow-path MQ\n");
8104                 goto out_error;
8105         }
8106         phba->sli4_hba.mbx_wq = qdesc;
8107
8108         /*
8109          * Create ELS Work Queues
8110          */
8111
8112         /* Create slow-path ELS Work Queue */
8113         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8114                                       phba->sli4_hba.wq_ecount);
8115         if (!qdesc) {
8116                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8117                                 "0504 Failed allocate slow-path ELS WQ\n");
8118                 goto out_error;
8119         }
8120         phba->sli4_hba.els_wq = qdesc;
8121         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8122
8123         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8124                 /* Create NVME LS Complete Queue */
8125                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8126                                               phba->sli4_hba.cq_ecount);
8127                 if (!qdesc) {
8128                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8129                                         "6079 Failed allocate NVME LS CQ\n");
8130                         goto out_error;
8131                 }
8132                 phba->sli4_hba.nvmels_cq = qdesc;
8133
8134                 /* Create NVME LS Work Queue */
8135                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8136                                               phba->sli4_hba.wq_ecount);
8137                 if (!qdesc) {
8138                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8139                                         "6080 Failed allocate NVME LS WQ\n");
8140                         goto out_error;
8141                 }
8142                 phba->sli4_hba.nvmels_wq = qdesc;
8143                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8144         }
8145
8146         /*
8147          * Create Receive Queue (RQ)
8148          */
8149
8150         /* Create Receive Queue for header */
8151         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8152                                       phba->sli4_hba.rq_ecount);
8153         if (!qdesc) {
8154                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8155                                 "0506 Failed allocate receive HRQ\n");
8156                 goto out_error;
8157         }
8158         phba->sli4_hba.hdr_rq = qdesc;
8159
8160         /* Create Receive Queue for data */
8161         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8162                                       phba->sli4_hba.rq_ecount);
8163         if (!qdesc) {
8164                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8165                                 "0507 Failed allocate receive DRQ\n");
8166                 goto out_error;
8167         }
8168         phba->sli4_hba.dat_rq = qdesc;
8169
8170         if (phba->nvmet_support) {
8171                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8172                         /* Create NVMET Receive Queue for header */
8173                         qdesc = lpfc_sli4_queue_alloc(phba,
8174                                                       phba->sli4_hba.rq_esize,
8175                                                       phba->sli4_hba.rq_ecount);
8176                         if (!qdesc) {
8177                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8178                                                 "3146 Failed allocate "
8179                                                 "receive HRQ\n");
8180                                 goto out_error;
8181                         }
8182                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8183
8184                         /* Only needed for header of RQ pair */
8185                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8186                                               GFP_KERNEL);
8187                         if (qdesc->rqbp == NULL) {
8188                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8189                                                 "6131 Failed allocate "
8190                                                 "Header RQBP\n");
8191                                 goto out_error;
8192                         }
8193
8194                         /* Create NVMET Receive Queue for data */
8195                         qdesc = lpfc_sli4_queue_alloc(phba,
8196                                                       phba->sli4_hba.rq_esize,
8197                                                       phba->sli4_hba.rq_ecount);
8198                         if (!qdesc) {
8199                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8200                                                 "3156 Failed allocate "
8201                                                 "receive DRQ\n");
8202                                 goto out_error;
8203                         }
8204                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8205                 }
8206         }
8207
8208         /* Create the Queues needed for Flash Optimized Fabric operations */
8209         if (phba->cfg_fof)
8210                 lpfc_fof_queue_create(phba);
8211         return 0;
8212
8213 out_error:
8214         lpfc_sli4_queue_destroy(phba);
8215         return -ENOMEM;
8216 }
8217
8218 static inline void
8219 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8220 {
8221         if (*qp != NULL) {
8222                 lpfc_sli4_queue_free(*qp);
8223                 *qp = NULL;
8224         }
8225 }
8226
8227 static inline void
8228 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8229 {
8230         int idx;
8231
8232         if (*qs == NULL)
8233                 return;
8234
8235         for (idx = 0; idx < max; idx++)
8236                 __lpfc_sli4_release_queue(&(*qs)[idx]);
8237
8238         kfree(*qs);
8239         *qs = NULL;
8240 }
8241
8242 static inline void
8243 lpfc_sli4_release_queue_map(uint16_t **qmap)
8244 {
8245         if (*qmap != NULL) {
8246                 kfree(*qmap);
8247                 *qmap = NULL;
8248         }
8249 }
8250
8251 /**
8252  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8253  * @phba: pointer to lpfc hba data structure.
8254  *
8255  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8256  * operation.
8257  *
8258  * Return codes
8259  *      0 - successful
8260  *      -ENOMEM - No available memory
8261  *      -EIO - The mailbox failed to complete successfully.
8262  **/
8263 void
8264 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8265 {
8266         if (phba->cfg_fof)
8267                 lpfc_fof_queue_destroy(phba);
8268
8269         /* Release HBA eqs */
8270         lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8271
8272         /* Release FCP cqs */
8273         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8274                                  phba->cfg_fcp_io_channel);
8275
8276         /* Release FCP wqs */
8277         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8278                                  phba->cfg_fcp_io_channel);
8279
8280         /* Release FCP CQ mapping array */
8281         lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8282
8283         /* Release NVME cqs */
8284         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8285                                         phba->cfg_nvme_io_channel);
8286
8287         /* Release NVME wqs */
8288         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8289                                         phba->cfg_nvme_io_channel);
8290
8291         /* Release NVME CQ mapping array */
8292         lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8293
8294         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8295                                         phba->cfg_nvmet_mrq);
8296
8297         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8298                                         phba->cfg_nvmet_mrq);
8299         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8300                                         phba->cfg_nvmet_mrq);
8301
8302         /* Release mailbox command work queue */
8303         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8304
8305         /* Release ELS work queue */
8306         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8307
8308         /* Release ELS work queue */
8309         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8310
8311         /* Release unsolicited receive queue */
8312         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8313         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8314
8315         /* Release ELS complete queue */
8316         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8317
8318         /* Release NVME LS complete queue */
8319         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8320
8321         /* Release mailbox command complete queue */
8322         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8323
8324         /* Everything on this list has been freed */
8325         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8326 }
8327
8328 int
8329 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
8330                     struct lpfc_queue *drq, int count)
8331 {
8332         int rc, i;
8333         struct lpfc_rqe hrqe;
8334         struct lpfc_rqe drqe;
8335         struct lpfc_rqb *rqbp;
8336         struct rqb_dmabuf *rqb_buffer;
8337         LIST_HEAD(rqb_buf_list);
8338
8339         rqbp = hrq->rqbp;
8340         for (i = 0; i < count; i++) {
8341                 rqb_buffer = (rqbp->rqb_alloc_buffer)(phba);
8342                 if (!rqb_buffer)
8343                         break;
8344                 rqb_buffer->hrq = hrq;
8345                 rqb_buffer->drq = drq;
8346                 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
8347         }
8348         while (!list_empty(&rqb_buf_list)) {
8349                 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
8350                                  hbuf.list);
8351
8352                 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
8353                 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
8354                 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
8355                 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
8356                 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
8357                 if (rc < 0) {
8358                         (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8359                 } else {
8360                         list_add_tail(&rqb_buffer->hbuf.list,
8361                                       &rqbp->rqb_buffer_list);
8362                         rqbp->buffer_count++;
8363                 }
8364         }
8365         return 1;
8366 }
8367
8368 int
8369 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8370 {
8371         struct lpfc_rqb *rqbp;
8372         struct lpfc_dmabuf *h_buf;
8373         struct rqb_dmabuf *rqb_buffer;
8374
8375         rqbp = rq->rqbp;
8376         while (!list_empty(&rqbp->rqb_buffer_list)) {
8377                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8378                                  struct lpfc_dmabuf, list);
8379
8380                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8381                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8382                 rqbp->buffer_count--;
8383         }
8384         return 1;
8385 }
8386
8387 static int
8388 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8389         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8390         int qidx, uint32_t qtype)
8391 {
8392         struct lpfc_sli_ring *pring;
8393         int rc;
8394
8395         if (!eq || !cq || !wq) {
8396                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8397                         "6085 Fast-path %s (%d) not allocated\n",
8398                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8399                 return -ENOMEM;
8400         }
8401
8402         /* create the Cq first */
8403         rc = lpfc_cq_create(phba, cq, eq,
8404                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8405         if (rc) {
8406                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8407                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
8408                         qidx, (uint32_t)rc);
8409                 return rc;
8410         }
8411
8412         if (qtype != LPFC_MBOX) {
8413                 /* Setup nvme_cq_map for fast lookup */
8414                 if (cq_map)
8415                         *cq_map = cq->queue_id;
8416
8417                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8418                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8419                         qidx, cq->queue_id, qidx, eq->queue_id);
8420
8421                 /* create the wq */
8422                 rc = lpfc_wq_create(phba, wq, cq, qtype);
8423                 if (rc) {
8424                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8425                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8426                                 qidx, (uint32_t)rc);
8427                         /* no need to tear down cq - caller will do so */
8428                         return rc;
8429                 }
8430
8431                 /* Bind this CQ/WQ to the NVME ring */
8432                 pring = wq->pring;
8433                 pring->sli.sli4.wqp = (void *)wq;
8434                 cq->pring = pring;
8435
8436                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8437                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8438                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8439         } else {
8440                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8441                 if (rc) {
8442                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8443                                 "0539 Failed setup of slow-path MQ: "
8444                                 "rc = 0x%x\n", rc);
8445                         /* no need to tear down cq - caller will do so */
8446                         return rc;
8447                 }
8448
8449                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8450                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8451                         phba->sli4_hba.mbx_wq->queue_id,
8452                         phba->sli4_hba.mbx_cq->queue_id);
8453         }
8454
8455         return 0;
8456 }
8457
8458 /**
8459  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8460  * @phba: pointer to lpfc hba data structure.
8461  *
8462  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8463  * operation.
8464  *
8465  * Return codes
8466  *      0 - successful
8467  *      -ENOMEM - No available memory
8468  *      -EIO - The mailbox failed to complete successfully.
8469  **/
8470 int
8471 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8472 {
8473         uint32_t shdr_status, shdr_add_status;
8474         union lpfc_sli4_cfg_shdr *shdr;
8475         LPFC_MBOXQ_t *mboxq;
8476         int qidx;
8477         uint32_t length, io_channel;
8478         int rc = -ENOMEM;
8479
8480         /* Check for dual-ULP support */
8481         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8482         if (!mboxq) {
8483                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8484                                 "3249 Unable to allocate memory for "
8485                                 "QUERY_FW_CFG mailbox command\n");
8486                 return -ENOMEM;
8487         }
8488         length = (sizeof(struct lpfc_mbx_query_fw_config) -
8489                   sizeof(struct lpfc_sli4_cfg_mhdr));
8490         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8491                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8492                          length, LPFC_SLI4_MBX_EMBED);
8493
8494         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8495
8496         shdr = (union lpfc_sli4_cfg_shdr *)
8497                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8498         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8499         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8500         if (shdr_status || shdr_add_status || rc) {
8501                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8502                                 "3250 QUERY_FW_CFG mailbox failed with status "
8503                                 "x%x add_status x%x, mbx status x%x\n",
8504                                 shdr_status, shdr_add_status, rc);
8505                 if (rc != MBX_TIMEOUT)
8506                         mempool_free(mboxq, phba->mbox_mem_pool);
8507                 rc = -ENXIO;
8508                 goto out_error;
8509         }
8510
8511         phba->sli4_hba.fw_func_mode =
8512                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
8513         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
8514         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
8515         phba->sli4_hba.physical_port =
8516                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
8517         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8518                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
8519                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
8520                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
8521
8522         if (rc != MBX_TIMEOUT)
8523                 mempool_free(mboxq, phba->mbox_mem_pool);
8524
8525         /*
8526          * Set up HBA Event Queues (EQs)
8527          */
8528         io_channel = phba->io_channel_irqs;
8529
8530         /* Set up HBA event queue */
8531         if (io_channel && !phba->sli4_hba.hba_eq) {
8532                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8533                                 "3147 Fast-path EQs not allocated\n");
8534                 rc = -ENOMEM;
8535                 goto out_error;
8536         }
8537         for (qidx = 0; qidx < io_channel; qidx++) {
8538                 if (!phba->sli4_hba.hba_eq[qidx]) {
8539                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8540                                         "0522 Fast-path EQ (%d) not "
8541                                         "allocated\n", qidx);
8542                         rc = -ENOMEM;
8543                         goto out_destroy;
8544                 }
8545                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
8546                                                 phba->cfg_fcp_imax);
8547                 if (rc) {
8548                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8549                                         "0523 Failed setup of fast-path EQ "
8550                                         "(%d), rc = 0x%x\n", qidx,
8551                                         (uint32_t)rc);
8552                         goto out_destroy;
8553                 }
8554                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8555                                 "2584 HBA EQ setup: queue[%d]-id=%d\n",
8556                                 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
8557         }
8558
8559         if (phba->cfg_nvme_io_channel) {
8560                 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
8561                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8562                                 "6084 Fast-path NVME %s array not allocated\n",
8563                                 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
8564                         rc = -ENOMEM;
8565                         goto out_destroy;
8566                 }
8567
8568                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
8569                         rc = lpfc_create_wq_cq(phba,
8570                                         phba->sli4_hba.hba_eq[
8571                                                 qidx % io_channel],
8572                                         phba->sli4_hba.nvme_cq[qidx],
8573                                         phba->sli4_hba.nvme_wq[qidx],
8574                                         &phba->sli4_hba.nvme_cq_map[qidx],
8575                                         qidx, LPFC_NVME);
8576                         if (rc) {
8577                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8578                                         "6123 Failed to setup fastpath "
8579                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
8580                                         qidx, (uint32_t)rc);
8581                                 goto out_destroy;
8582                         }
8583                 }
8584         }
8585
8586         if (phba->cfg_fcp_io_channel) {
8587                 /* Set up fast-path FCP Response Complete Queue */
8588                 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
8589                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8590                                 "3148 Fast-path FCP %s array not allocated\n",
8591                                 phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
8592                         rc = -ENOMEM;
8593                         goto out_destroy;
8594                 }
8595
8596                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
8597                         rc = lpfc_create_wq_cq(phba,
8598                                         phba->sli4_hba.hba_eq[
8599                                                 qidx % io_channel],
8600                                         phba->sli4_hba.fcp_cq[qidx],
8601                                         phba->sli4_hba.fcp_wq[qidx],
8602                                         &phba->sli4_hba.fcp_cq_map[qidx],
8603                                         qidx, LPFC_FCP);
8604                         if (rc) {
8605                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8606                                         "0535 Failed to setup fastpath "
8607                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
8608                                         qidx, (uint32_t)rc);
8609                                 goto out_destroy;
8610                         }
8611                 }
8612         }
8613
8614         /*
8615          * Set up Slow Path Complete Queues (CQs)
8616          */
8617
8618         /* Set up slow-path MBOX CQ/MQ */
8619
8620         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
8621                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8622                                 "0528 %s not allocated\n",
8623                                 phba->sli4_hba.mbx_cq ?
8624                                 "Mailbox WQ" : "Mailbox CQ");
8625                 rc = -ENOMEM;
8626                 goto out_destroy;
8627         }
8628
8629         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8630                                phba->sli4_hba.mbx_cq,
8631                                phba->sli4_hba.mbx_wq,
8632                                NULL, 0, LPFC_MBOX);
8633         if (rc) {
8634                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8635                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
8636                         (uint32_t)rc);
8637                 goto out_destroy;
8638         }
8639         if (phba->nvmet_support) {
8640                 if (!phba->sli4_hba.nvmet_cqset) {
8641                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8642                                         "3165 Fast-path NVME CQ Set "
8643                                         "array not allocated\n");
8644                         rc = -ENOMEM;
8645                         goto out_destroy;
8646                 }
8647                 if (phba->cfg_nvmet_mrq > 1) {
8648                         rc = lpfc_cq_create_set(phba,
8649                                         phba->sli4_hba.nvmet_cqset,
8650                                         phba->sli4_hba.hba_eq,
8651                                         LPFC_WCQ, LPFC_NVMET);
8652                         if (rc) {
8653                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8654                                                 "3164 Failed setup of NVME CQ "
8655                                                 "Set, rc = 0x%x\n",
8656                                                 (uint32_t)rc);
8657                                 goto out_destroy;
8658                         }
8659                 } else {
8660                         /* Set up NVMET Receive Complete Queue */
8661                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
8662                                             phba->sli4_hba.hba_eq[0],
8663                                             LPFC_WCQ, LPFC_NVMET);
8664                         if (rc) {
8665                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8666                                                 "6089 Failed setup NVMET CQ: "
8667                                                 "rc = 0x%x\n", (uint32_t)rc);
8668                                 goto out_destroy;
8669                         }
8670                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8671                                         "6090 NVMET CQ setup: cq-id=%d, "
8672                                         "parent eq-id=%d\n",
8673                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
8674                                         phba->sli4_hba.hba_eq[0]->queue_id);
8675                 }
8676         }
8677
8678         /* Set up slow-path ELS WQ/CQ */
8679         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
8680                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8681                                 "0530 ELS %s not allocated\n",
8682                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
8683                 rc = -ENOMEM;
8684                 goto out_destroy;
8685         }
8686         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8687                                         phba->sli4_hba.els_cq,
8688                                         phba->sli4_hba.els_wq,
8689                                         NULL, 0, LPFC_ELS);
8690         if (rc) {
8691                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8692                         "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
8693                         (uint32_t)rc);
8694                 goto out_destroy;
8695         }
8696         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8697                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
8698                         phba->sli4_hba.els_wq->queue_id,
8699                         phba->sli4_hba.els_cq->queue_id);
8700
8701         if (phba->cfg_nvme_io_channel) {
8702                 /* Set up NVME LS Complete Queue */
8703                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
8704                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8705                                         "6091 LS %s not allocated\n",
8706                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
8707                         rc = -ENOMEM;
8708                         goto out_destroy;
8709                 }
8710                 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8711                                         phba->sli4_hba.nvmels_cq,
8712                                         phba->sli4_hba.nvmels_wq,
8713                                         NULL, 0, LPFC_NVME_LS);
8714                 if (rc) {
8715                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8716                                 "0529 Failed setup of NVVME LS WQ/CQ: "
8717                                 "rc = 0x%x\n", (uint32_t)rc);
8718                         goto out_destroy;
8719                 }
8720
8721                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8722                                 "6096 ELS WQ setup: wq-id=%d, "
8723                                 "parent cq-id=%d\n",
8724                                 phba->sli4_hba.nvmels_wq->queue_id,
8725                                 phba->sli4_hba.nvmels_cq->queue_id);
8726         }
8727
8728         /*
8729          * Create NVMET Receive Queue (RQ)
8730          */
8731         if (phba->nvmet_support) {
8732                 if ((!phba->sli4_hba.nvmet_cqset) ||
8733                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
8734                     (!phba->sli4_hba.nvmet_mrq_data)) {
8735                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8736                                         "6130 MRQ CQ Queues not "
8737                                         "allocated\n");
8738                         rc = -ENOMEM;
8739                         goto out_destroy;
8740                 }
8741                 if (phba->cfg_nvmet_mrq > 1) {
8742                         rc = lpfc_mrq_create(phba,
8743                                              phba->sli4_hba.nvmet_mrq_hdr,
8744                                              phba->sli4_hba.nvmet_mrq_data,
8745                                              phba->sli4_hba.nvmet_cqset,
8746                                              LPFC_NVMET);
8747                         if (rc) {
8748                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8749                                                 "6098 Failed setup of NVMET "
8750                                                 "MRQ: rc = 0x%x\n",
8751                                                 (uint32_t)rc);
8752                                 goto out_destroy;
8753                         }
8754
8755                 } else {
8756                         rc = lpfc_rq_create(phba,
8757                                             phba->sli4_hba.nvmet_mrq_hdr[0],
8758                                             phba->sli4_hba.nvmet_mrq_data[0],
8759                                             phba->sli4_hba.nvmet_cqset[0],
8760                                             LPFC_NVMET);
8761                         if (rc) {
8762                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8763                                                 "6057 Failed setup of NVMET "
8764                                                 "Receive Queue: rc = 0x%x\n",
8765                                                 (uint32_t)rc);
8766                                 goto out_destroy;
8767                         }
8768
8769                         lpfc_printf_log(
8770                                 phba, KERN_INFO, LOG_INIT,
8771                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
8772                                 "dat-rq-id=%d parent cq-id=%d\n",
8773                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
8774                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
8775                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
8776
8777                 }
8778         }
8779
8780         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
8781                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8782                                 "0540 Receive Queue not allocated\n");
8783                 rc = -ENOMEM;
8784                 goto out_destroy;
8785         }
8786
8787         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
8788         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
8789
8790         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
8791                             phba->sli4_hba.els_cq, LPFC_USOL);
8792         if (rc) {
8793                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8794                                 "0541 Failed setup of Receive Queue: "
8795                                 "rc = 0x%x\n", (uint32_t)rc);
8796                 goto out_destroy;
8797         }
8798
8799         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8800                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
8801                         "parent cq-id=%d\n",
8802                         phba->sli4_hba.hdr_rq->queue_id,
8803                         phba->sli4_hba.dat_rq->queue_id,
8804                         phba->sli4_hba.els_cq->queue_id);
8805
8806         if (phba->cfg_fof) {
8807                 rc = lpfc_fof_queue_setup(phba);
8808                 if (rc) {
8809                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8810                                         "0549 Failed setup of FOF Queues: "
8811                                         "rc = 0x%x\n", rc);
8812                         goto out_destroy;
8813                 }
8814         }
8815
8816         for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
8817                 lpfc_modify_hba_eq_delay(phba, qidx);
8818
8819         return 0;
8820
8821 out_destroy:
8822         lpfc_sli4_queue_unset(phba);
8823 out_error:
8824         return rc;
8825 }
8826
8827 /**
8828  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
8829  * @phba: pointer to lpfc hba data structure.
8830  *
8831  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
8832  * operation.
8833  *
8834  * Return codes
8835  *      0 - successful
8836  *      -ENOMEM - No available memory
8837  *      -EIO - The mailbox failed to complete successfully.
8838  **/
8839 void
8840 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
8841 {
8842         int qidx;
8843
8844         /* Unset the queues created for Flash Optimized Fabric operations */
8845         if (phba->cfg_fof)
8846                 lpfc_fof_queue_destroy(phba);
8847
8848         /* Unset mailbox command work queue */
8849         if (phba->sli4_hba.mbx_wq)
8850                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
8851
8852         /* Unset NVME LS work queue */
8853         if (phba->sli4_hba.nvmels_wq)
8854                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
8855
8856         /* Unset ELS work queue */
8857         if (phba->sli4_hba.els_wq)
8858                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
8859
8860         /* Unset unsolicited receive queue */
8861         if (phba->sli4_hba.hdr_rq)
8862                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
8863                                 phba->sli4_hba.dat_rq);
8864
8865         /* Unset FCP work queue */
8866         if (phba->sli4_hba.fcp_wq)
8867                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
8868                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
8869
8870         /* Unset NVME work queue */
8871         if (phba->sli4_hba.nvme_wq) {
8872                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8873                         lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
8874         }
8875
8876         /* Unset mailbox command complete queue */
8877         if (phba->sli4_hba.mbx_cq)
8878                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
8879
8880         /* Unset ELS complete queue */
8881         if (phba->sli4_hba.els_cq)
8882                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
8883
8884         /* Unset NVME LS complete queue */
8885         if (phba->sli4_hba.nvmels_cq)
8886                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
8887
8888         /* Unset NVME response complete queue */
8889         if (phba->sli4_hba.nvme_cq)
8890                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8891                         lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
8892
8893         /* Unset NVMET MRQ queue */
8894         if (phba->sli4_hba.nvmet_mrq_hdr) {
8895                 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
8896                         lpfc_rq_destroy(phba,
8897                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
8898                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
8899         }
8900
8901         /* Unset NVMET CQ Set complete queue */
8902         if (phba->sli4_hba.nvmet_cqset) {
8903                 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
8904                         lpfc_cq_destroy(phba,
8905                                         phba->sli4_hba.nvmet_cqset[qidx]);
8906         }
8907
8908         /* Unset FCP response complete queue */
8909         if (phba->sli4_hba.fcp_cq)
8910                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
8911                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
8912
8913         /* Unset fast-path event queue */
8914         if (phba->sli4_hba.hba_eq)
8915                 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
8916                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
8917 }
8918
8919 /**
8920  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
8921  * @phba: pointer to lpfc hba data structure.
8922  *
8923  * This routine is invoked to allocate and set up a pool of completion queue
8924  * events. The body of the completion queue event is a completion queue entry
8925  * CQE. For now, this pool is used for the interrupt service routine to queue
8926  * the following HBA completion queue events for the worker thread to process:
8927  *   - Mailbox asynchronous events
8928  *   - Receive queue completion unsolicited events
8929  * Later, this can be used for all the slow-path events.
8930  *
8931  * Return codes
8932  *      0 - successful
8933  *      -ENOMEM - No available memory
8934  **/
8935 static int
8936 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
8937 {
8938         struct lpfc_cq_event *cq_event;
8939         int i;
8940
8941         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
8942                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
8943                 if (!cq_event)
8944                         goto out_pool_create_fail;
8945                 list_add_tail(&cq_event->list,
8946                               &phba->sli4_hba.sp_cqe_event_pool);
8947         }
8948         return 0;
8949
8950 out_pool_create_fail:
8951         lpfc_sli4_cq_event_pool_destroy(phba);
8952         return -ENOMEM;
8953 }
8954
8955 /**
8956  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
8957  * @phba: pointer to lpfc hba data structure.
8958  *
8959  * This routine is invoked to free the pool of completion queue events at
8960  * driver unload time. Note that, it is the responsibility of the driver
8961  * cleanup routine to free all the outstanding completion-queue events
8962  * allocated from this pool back into the pool before invoking this routine
8963  * to destroy the pool.
8964  **/
8965 static void
8966 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
8967 {
8968         struct lpfc_cq_event *cq_event, *next_cq_event;
8969
8970         list_for_each_entry_safe(cq_event, next_cq_event,
8971                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
8972                 list_del(&cq_event->list);
8973                 kfree(cq_event);
8974         }
8975 }
8976
8977 /**
8978  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8979  * @phba: pointer to lpfc hba data structure.
8980  *
8981  * This routine is the lock free version of the API invoked to allocate a
8982  * completion-queue event from the free pool.
8983  *
8984  * Return: Pointer to the newly allocated completion-queue event if successful
8985  *         NULL otherwise.
8986  **/
8987 struct lpfc_cq_event *
8988 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8989 {
8990         struct lpfc_cq_event *cq_event = NULL;
8991
8992         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
8993                          struct lpfc_cq_event, list);
8994         return cq_event;
8995 }
8996
8997 /**
8998  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8999  * @phba: pointer to lpfc hba data structure.
9000  *
9001  * This routine is the lock version of the API invoked to allocate a
9002  * completion-queue event from the free pool.
9003  *
9004  * Return: Pointer to the newly allocated completion-queue event if successful
9005  *         NULL otherwise.
9006  **/
9007 struct lpfc_cq_event *
9008 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9009 {
9010         struct lpfc_cq_event *cq_event;
9011         unsigned long iflags;
9012
9013         spin_lock_irqsave(&phba->hbalock, iflags);
9014         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9015         spin_unlock_irqrestore(&phba->hbalock, iflags);
9016         return cq_event;
9017 }
9018
9019 /**
9020  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9021  * @phba: pointer to lpfc hba data structure.
9022  * @cq_event: pointer to the completion queue event to be freed.
9023  *
9024  * This routine is the lock free version of the API invoked to release a
9025  * completion-queue event back into the free pool.
9026  **/
9027 void
9028 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9029                              struct lpfc_cq_event *cq_event)
9030 {
9031         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9032 }
9033
9034 /**
9035  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9036  * @phba: pointer to lpfc hba data structure.
9037  * @cq_event: pointer to the completion queue event to be freed.
9038  *
9039  * This routine is the lock version of the API invoked to release a
9040  * completion-queue event back into the free pool.
9041  **/
9042 void
9043 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9044                            struct lpfc_cq_event *cq_event)
9045 {
9046         unsigned long iflags;
9047         spin_lock_irqsave(&phba->hbalock, iflags);
9048         __lpfc_sli4_cq_event_release(phba, cq_event);
9049         spin_unlock_irqrestore(&phba->hbalock, iflags);
9050 }
9051
9052 /**
9053  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9054  * @phba: pointer to lpfc hba data structure.
9055  *
9056  * This routine is to free all the pending completion-queue events to the
9057  * back into the free pool for device reset.
9058  **/
9059 static void
9060 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9061 {
9062         LIST_HEAD(cqelist);
9063         struct lpfc_cq_event *cqe;
9064         unsigned long iflags;
9065
9066         /* Retrieve all the pending WCQEs from pending WCQE lists */
9067         spin_lock_irqsave(&phba->hbalock, iflags);
9068         /* Pending FCP XRI abort events */
9069         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9070                          &cqelist);
9071         /* Pending ELS XRI abort events */
9072         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9073                          &cqelist);
9074         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9075                 /* Pending NVME XRI abort events */
9076                 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
9077                                  &cqelist);
9078         }
9079         /* Pending asynnc events */
9080         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9081                          &cqelist);
9082         spin_unlock_irqrestore(&phba->hbalock, iflags);
9083
9084         while (!list_empty(&cqelist)) {
9085                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9086                 lpfc_sli4_cq_event_release(phba, cqe);
9087         }
9088 }
9089
9090 /**
9091  * lpfc_pci_function_reset - Reset pci function.
9092  * @phba: pointer to lpfc hba data structure.
9093  *
9094  * This routine is invoked to request a PCI function reset. It will destroys
9095  * all resources assigned to the PCI function which originates this request.
9096  *
9097  * Return codes
9098  *      0 - successful
9099  *      -ENOMEM - No available memory
9100  *      -EIO - The mailbox failed to complete successfully.
9101  **/
9102 int
9103 lpfc_pci_function_reset(struct lpfc_hba *phba)
9104 {
9105         LPFC_MBOXQ_t *mboxq;
9106         uint32_t rc = 0, if_type;
9107         uint32_t shdr_status, shdr_add_status;
9108         uint32_t rdy_chk;
9109         uint32_t port_reset = 0;
9110         union lpfc_sli4_cfg_shdr *shdr;
9111         struct lpfc_register reg_data;
9112         uint16_t devid;
9113
9114         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9115         switch (if_type) {
9116         case LPFC_SLI_INTF_IF_TYPE_0:
9117                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9118                                                        GFP_KERNEL);
9119                 if (!mboxq) {
9120                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9121                                         "0494 Unable to allocate memory for "
9122                                         "issuing SLI_FUNCTION_RESET mailbox "
9123                                         "command\n");
9124                         return -ENOMEM;
9125                 }
9126
9127                 /* Setup PCI function reset mailbox-ioctl command */
9128                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9129                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9130                                  LPFC_SLI4_MBX_EMBED);
9131                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9132                 shdr = (union lpfc_sli4_cfg_shdr *)
9133                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9134                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9135                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9136                                          &shdr->response);
9137                 if (rc != MBX_TIMEOUT)
9138                         mempool_free(mboxq, phba->mbox_mem_pool);
9139                 if (shdr_status || shdr_add_status || rc) {
9140                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9141                                         "0495 SLI_FUNCTION_RESET mailbox "
9142                                         "failed with status x%x add_status x%x,"
9143                                         " mbx status x%x\n",
9144                                         shdr_status, shdr_add_status, rc);
9145                         rc = -ENXIO;
9146                 }
9147                 break;
9148         case LPFC_SLI_INTF_IF_TYPE_2:
9149 wait:
9150                 /*
9151                  * Poll the Port Status Register and wait for RDY for
9152                  * up to 30 seconds. If the port doesn't respond, treat
9153                  * it as an error.
9154                  */
9155                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9156                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9157                                 STATUSregaddr, &reg_data.word0)) {
9158                                 rc = -ENODEV;
9159                                 goto out;
9160                         }
9161                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9162                                 break;
9163                         msleep(20);
9164                 }
9165
9166                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9167                         phba->work_status[0] = readl(
9168                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9169                         phba->work_status[1] = readl(
9170                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9171                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9172                                         "2890 Port not ready, port status reg "
9173                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9174                                         reg_data.word0,
9175                                         phba->work_status[0],
9176                                         phba->work_status[1]);
9177                         rc = -ENODEV;
9178                         goto out;
9179                 }
9180
9181                 if (!port_reset) {
9182                         /*
9183                          * Reset the port now
9184                          */
9185                         reg_data.word0 = 0;
9186                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
9187                                LPFC_SLIPORT_LITTLE_ENDIAN);
9188                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9189                                LPFC_SLIPORT_INIT_PORT);
9190                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9191                                CTRLregaddr);
9192                         /* flush */
9193                         pci_read_config_word(phba->pcidev,
9194                                              PCI_DEVICE_ID, &devid);
9195
9196                         port_reset = 1;
9197                         msleep(20);
9198                         goto wait;
9199                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
9200                         rc = -ENODEV;
9201                         goto out;
9202                 }
9203                 break;
9204
9205         case LPFC_SLI_INTF_IF_TYPE_1:
9206         default:
9207                 break;
9208         }
9209
9210 out:
9211         /* Catch the not-ready port failure after a port reset. */
9212         if (rc) {
9213                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9214                                 "3317 HBA not functional: IP Reset Failed "
9215                                 "try: echo fw_reset > board_mode\n");
9216                 rc = -ENODEV;
9217         }
9218
9219         return rc;
9220 }
9221
9222 /**
9223  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9224  * @phba: pointer to lpfc hba data structure.
9225  *
9226  * This routine is invoked to set up the PCI device memory space for device
9227  * with SLI-4 interface spec.
9228  *
9229  * Return codes
9230  *      0 - successful
9231  *      other values - error
9232  **/
9233 static int
9234 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9235 {
9236         struct pci_dev *pdev;
9237         unsigned long bar0map_len, bar1map_len, bar2map_len;
9238         int error = -ENODEV;
9239         uint32_t if_type;
9240
9241         /* Obtain PCI device reference */
9242         if (!phba->pcidev)
9243                 return error;
9244         else
9245                 pdev = phba->pcidev;
9246
9247         /* Set the device DMA mask size */
9248         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
9249          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
9250                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
9251                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
9252                         return error;
9253                 }
9254         }
9255
9256         /*
9257          * The BARs and register set definitions and offset locations are
9258          * dependent on the if_type.
9259          */
9260         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9261                                   &phba->sli4_hba.sli_intf.word0)) {
9262                 return error;
9263         }
9264
9265         /* There is no SLI3 failback for SLI4 devices. */
9266         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9267             LPFC_SLI_INTF_VALID) {
9268                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9269                                 "2894 SLI_INTF reg contents invalid "
9270                                 "sli_intf reg 0x%x\n",
9271                                 phba->sli4_hba.sli_intf.word0);
9272                 return error;
9273         }
9274
9275         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9276         /*
9277          * Get the bus address of SLI4 device Bar regions and the
9278          * number of bytes required by each mapping. The mapping of the
9279          * particular PCI BARs regions is dependent on the type of
9280          * SLI4 device.
9281          */
9282         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9283                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9284                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9285
9286                 /*
9287                  * Map SLI4 PCI Config Space Register base to a kernel virtual
9288                  * addr
9289                  */
9290                 phba->sli4_hba.conf_regs_memmap_p =
9291                         ioremap(phba->pci_bar0_map, bar0map_len);
9292                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9293                         dev_printk(KERN_ERR, &pdev->dev,
9294                                    "ioremap failed for SLI4 PCI config "
9295                                    "registers.\n");
9296                         goto out;
9297                 }
9298                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9299                 /* Set up BAR0 PCI config space register memory map */
9300                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9301         } else {
9302                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
9303                 bar0map_len = pci_resource_len(pdev, 1);
9304                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
9305                         dev_printk(KERN_ERR, &pdev->dev,
9306                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9307                         goto out;
9308                 }
9309                 phba->sli4_hba.conf_regs_memmap_p =
9310                                 ioremap(phba->pci_bar0_map, bar0map_len);
9311                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9312                         dev_printk(KERN_ERR, &pdev->dev,
9313                                 "ioremap failed for SLI4 PCI config "
9314                                 "registers.\n");
9315                                 goto out;
9316                 }
9317                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9318         }
9319
9320         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9321             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9322                 /*
9323                  * Map SLI4 if type 0 HBA Control Register base to a kernel
9324                  * virtual address and setup the registers.
9325                  */
9326                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9327                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9328                 phba->sli4_hba.ctrl_regs_memmap_p =
9329                                 ioremap(phba->pci_bar1_map, bar1map_len);
9330                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9331                         dev_printk(KERN_ERR, &pdev->dev,
9332                            "ioremap failed for SLI4 HBA control registers.\n");
9333                         goto out_iounmap_conf;
9334                 }
9335                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
9336                 lpfc_sli4_bar1_register_memmap(phba);
9337         }
9338
9339         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9340             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
9341                 /*
9342                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
9343                  * virtual address and setup the registers.
9344                  */
9345                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9346                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9347                 phba->sli4_hba.drbl_regs_memmap_p =
9348                                 ioremap(phba->pci_bar2_map, bar2map_len);
9349                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
9350                         dev_printk(KERN_ERR, &pdev->dev,
9351                            "ioremap failed for SLI4 HBA doorbell registers.\n");
9352                         goto out_iounmap_ctrl;
9353                 }
9354                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9355                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9356                 if (error)
9357                         goto out_iounmap_all;
9358         }
9359
9360         return 0;
9361
9362 out_iounmap_all:
9363         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9364 out_iounmap_ctrl:
9365         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9366 out_iounmap_conf:
9367         iounmap(phba->sli4_hba.conf_regs_memmap_p);
9368 out:
9369         return error;
9370 }
9371
9372 /**
9373  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9374  * @phba: pointer to lpfc hba data structure.
9375  *
9376  * This routine is invoked to unset the PCI device memory space for device
9377  * with SLI-4 interface spec.
9378  **/
9379 static void
9380 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9381 {
9382         uint32_t if_type;
9383         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9384
9385         switch (if_type) {
9386         case LPFC_SLI_INTF_IF_TYPE_0:
9387                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9388                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9389                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9390                 break;
9391         case LPFC_SLI_INTF_IF_TYPE_2:
9392                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9393                 break;
9394         case LPFC_SLI_INTF_IF_TYPE_1:
9395         default:
9396                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9397                            "FATAL - unsupported SLI4 interface type - %d\n",
9398                            if_type);
9399                 break;
9400         }
9401 }
9402
9403 /**
9404  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9405  * @phba: pointer to lpfc hba data structure.
9406  *
9407  * This routine is invoked to enable the MSI-X interrupt vectors to device
9408  * with SLI-3 interface specs.
9409  *
9410  * Return codes
9411  *   0 - successful
9412  *   other values - error
9413  **/
9414 static int
9415 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9416 {
9417         int rc;
9418         LPFC_MBOXQ_t *pmb;
9419
9420         /* Set up MSI-X multi-message vectors */
9421         rc = pci_alloc_irq_vectors(phba->pcidev,
9422                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9423         if (rc < 0) {
9424                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9425                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
9426                 goto vec_fail_out;
9427         }
9428
9429         /*
9430          * Assign MSI-X vectors to interrupt handlers
9431          */
9432
9433         /* vector-0 is associated to slow-path handler */
9434         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
9435                          &lpfc_sli_sp_intr_handler, 0,
9436                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
9437         if (rc) {
9438                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9439                                 "0421 MSI-X slow-path request_irq failed "
9440                                 "(%d)\n", rc);
9441                 goto msi_fail_out;
9442         }
9443
9444         /* vector-1 is associated to fast-path handler */
9445         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
9446                          &lpfc_sli_fp_intr_handler, 0,
9447                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
9448
9449         if (rc) {
9450                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9451                                 "0429 MSI-X fast-path request_irq failed "
9452                                 "(%d)\n", rc);
9453                 goto irq_fail_out;
9454         }
9455
9456         /*
9457          * Configure HBA MSI-X attention conditions to messages
9458          */
9459         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9460
9461         if (!pmb) {
9462                 rc = -ENOMEM;
9463                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9464                                 "0474 Unable to allocate memory for issuing "
9465                                 "MBOX_CONFIG_MSI command\n");
9466                 goto mem_fail_out;
9467         }
9468         rc = lpfc_config_msi(phba, pmb);
9469         if (rc)
9470                 goto mbx_fail_out;
9471         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9472         if (rc != MBX_SUCCESS) {
9473                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
9474                                 "0351 Config MSI mailbox command failed, "
9475                                 "mbxCmd x%x, mbxStatus x%x\n",
9476                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
9477                 goto mbx_fail_out;
9478         }
9479
9480         /* Free memory allocated for mailbox command */
9481         mempool_free(pmb, phba->mbox_mem_pool);
9482         return rc;
9483
9484 mbx_fail_out:
9485         /* Free memory allocated for mailbox command */
9486         mempool_free(pmb, phba->mbox_mem_pool);
9487
9488 mem_fail_out:
9489         /* free the irq already requested */
9490         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
9491
9492 irq_fail_out:
9493         /* free the irq already requested */
9494         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
9495
9496 msi_fail_out:
9497         /* Unconfigure MSI-X capability structure */
9498         pci_free_irq_vectors(phba->pcidev);
9499
9500 vec_fail_out:
9501         return rc;
9502 }
9503
9504 /**
9505  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
9506  * @phba: pointer to lpfc hba data structure.
9507  *
9508  * This routine is invoked to enable the MSI interrupt mode to device with
9509  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
9510  * enable the MSI vector. The device driver is responsible for calling the
9511  * request_irq() to register MSI vector with a interrupt the handler, which
9512  * is done in this function.
9513  *
9514  * Return codes
9515  *      0 - successful
9516  *      other values - error
9517  */
9518 static int
9519 lpfc_sli_enable_msi(struct lpfc_hba *phba)
9520 {
9521         int rc;
9522
9523         rc = pci_enable_msi(phba->pcidev);
9524         if (!rc)
9525                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9526                                 "0462 PCI enable MSI mode success.\n");
9527         else {
9528                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9529                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
9530                 return rc;
9531         }
9532
9533         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9534                          0, LPFC_DRIVER_NAME, phba);
9535         if (rc) {
9536                 pci_disable_msi(phba->pcidev);
9537                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9538                                 "0478 MSI request_irq failed (%d)\n", rc);
9539         }
9540         return rc;
9541 }
9542
9543 /**
9544  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
9545  * @phba: pointer to lpfc hba data structure.
9546  *
9547  * This routine is invoked to enable device interrupt and associate driver's
9548  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
9549  * spec. Depends on the interrupt mode configured to the driver, the driver
9550  * will try to fallback from the configured interrupt mode to an interrupt
9551  * mode which is supported by the platform, kernel, and device in the order
9552  * of:
9553  * MSI-X -> MSI -> IRQ.
9554  *
9555  * Return codes
9556  *   0 - successful
9557  *   other values - error
9558  **/
9559 static uint32_t
9560 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9561 {
9562         uint32_t intr_mode = LPFC_INTR_ERROR;
9563         int retval;
9564
9565         if (cfg_mode == 2) {
9566                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
9567                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
9568                 if (!retval) {
9569                         /* Now, try to enable MSI-X interrupt mode */
9570                         retval = lpfc_sli_enable_msix(phba);
9571                         if (!retval) {
9572                                 /* Indicate initialization to MSI-X mode */
9573                                 phba->intr_type = MSIX;
9574                                 intr_mode = 2;
9575                         }
9576                 }
9577         }
9578
9579         /* Fallback to MSI if MSI-X initialization failed */
9580         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9581                 retval = lpfc_sli_enable_msi(phba);
9582                 if (!retval) {
9583                         /* Indicate initialization to MSI mode */
9584                         phba->intr_type = MSI;
9585                         intr_mode = 1;
9586                 }
9587         }
9588
9589         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9590         if (phba->intr_type == NONE) {
9591                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9592                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9593                 if (!retval) {
9594                         /* Indicate initialization to INTx mode */
9595                         phba->intr_type = INTx;
9596                         intr_mode = 0;
9597                 }
9598         }
9599         return intr_mode;
9600 }
9601
9602 /**
9603  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
9604  * @phba: pointer to lpfc hba data structure.
9605  *
9606  * This routine is invoked to disable device interrupt and disassociate the
9607  * driver's interrupt handler(s) from interrupt vector(s) to device with
9608  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
9609  * release the interrupt vector(s) for the message signaled interrupt.
9610  **/
9611 static void
9612 lpfc_sli_disable_intr(struct lpfc_hba *phba)
9613 {
9614         int nr_irqs, i;
9615
9616         if (phba->intr_type == MSIX)
9617                 nr_irqs = LPFC_MSIX_VECTORS;
9618         else
9619                 nr_irqs = 1;
9620
9621         for (i = 0; i < nr_irqs; i++)
9622                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
9623         pci_free_irq_vectors(phba->pcidev);
9624
9625         /* Reset interrupt management states */
9626         phba->intr_type = NONE;
9627         phba->sli.slistat.sli_intr = 0;
9628 }
9629
9630 /**
9631  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
9632  * @phba: pointer to lpfc hba data structure.
9633  * @vectors: number of msix vectors allocated.
9634  *
9635  * The routine will figure out the CPU affinity assignment for every
9636  * MSI-X vector allocated for the HBA.  The hba_eq_hdl will be updated
9637  * with a pointer to the CPU mask that defines ALL the CPUs this vector
9638  * can be associated with. If the vector can be unquely associated with
9639  * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
9640  * In addition, the CPU to IO channel mapping will be calculated
9641  * and the phba->sli4_hba.cpu_map array will reflect this.
9642  */
9643 static void
9644 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
9645 {
9646         struct lpfc_vector_map_info *cpup;
9647         int index = 0;
9648         int vec = 0;
9649         int cpu;
9650 #ifdef CONFIG_X86
9651         struct cpuinfo_x86 *cpuinfo;
9652 #endif
9653
9654         /* Init cpu_map array */
9655         memset(phba->sli4_hba.cpu_map, 0xff,
9656                (sizeof(struct lpfc_vector_map_info) *
9657                phba->sli4_hba.num_present_cpu));
9658
9659         /* Update CPU map with physical id and core id of each CPU */
9660         cpup = phba->sli4_hba.cpu_map;
9661         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
9662 #ifdef CONFIG_X86
9663                 cpuinfo = &cpu_data(cpu);
9664                 cpup->phys_id = cpuinfo->phys_proc_id;
9665                 cpup->core_id = cpuinfo->cpu_core_id;
9666 #else
9667                 /* No distinction between CPUs for other platforms */
9668                 cpup->phys_id = 0;
9669                 cpup->core_id = 0;
9670 #endif
9671                 cpup->channel_id = index;  /* For now round robin */
9672                 cpup->irq = pci_irq_vector(phba->pcidev, vec);
9673                 vec++;
9674                 if (vec >= vectors)
9675                         vec = 0;
9676                 index++;
9677                 if (index >= phba->cfg_fcp_io_channel)
9678                         index = 0;
9679                 cpup++;
9680         }
9681 }
9682
9683
9684 /**
9685  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
9686  * @phba: pointer to lpfc hba data structure.
9687  *
9688  * This routine is invoked to enable the MSI-X interrupt vectors to device
9689  * with SLI-4 interface spec.
9690  *
9691  * Return codes
9692  * 0 - successful
9693  * other values - error
9694  **/
9695 static int
9696 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
9697 {
9698         int vectors, rc, index;
9699
9700         /* Set up MSI-X multi-message vectors */
9701         vectors = phba->io_channel_irqs;
9702         if (phba->cfg_fof)
9703                 vectors++;
9704
9705         rc = pci_alloc_irq_vectors(phba->pcidev,
9706                                 (phba->nvmet_support) ? 1 : 2,
9707                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
9708         if (rc < 0) {
9709                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9710                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
9711                 goto vec_fail_out;
9712         }
9713         vectors = rc;
9714
9715         /* Assign MSI-X vectors to interrupt handlers */
9716         for (index = 0; index < vectors; index++) {
9717                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
9718                 snprintf((char *)&phba->sli4_hba.handler_name[index],
9719                          LPFC_SLI4_HANDLER_NAME_SZ,
9720                          LPFC_DRIVER_HANDLER_NAME"%d", index);
9721
9722                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9723                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9724                 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
9725                 if (phba->cfg_fof && (index == (vectors - 1)))
9726                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
9727                                  &lpfc_sli4_fof_intr_handler, 0,
9728                                  (char *)&phba->sli4_hba.handler_name[index],
9729                                  &phba->sli4_hba.hba_eq_hdl[index]);
9730                 else
9731                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
9732                                  &lpfc_sli4_hba_intr_handler, 0,
9733                                  (char *)&phba->sli4_hba.handler_name[index],
9734                                  &phba->sli4_hba.hba_eq_hdl[index]);
9735                 if (rc) {
9736                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9737                                         "0486 MSI-X fast-path (%d) "
9738                                         "request_irq failed (%d)\n", index, rc);
9739                         goto cfg_fail_out;
9740                 }
9741         }
9742
9743         if (phba->cfg_fof)
9744                 vectors--;
9745
9746         if (vectors != phba->io_channel_irqs) {
9747                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9748                                 "3238 Reducing IO channels to match number of "
9749                                 "MSI-X vectors, requested %d got %d\n",
9750                                 phba->io_channel_irqs, vectors);
9751                 if (phba->cfg_fcp_io_channel > vectors)
9752                         phba->cfg_fcp_io_channel = vectors;
9753                 if (phba->cfg_nvme_io_channel > vectors)
9754                         phba->cfg_nvme_io_channel = vectors;
9755                 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
9756                         phba->io_channel_irqs = phba->cfg_fcp_io_channel;
9757                 else
9758                         phba->io_channel_irqs = phba->cfg_nvme_io_channel;
9759         }
9760         lpfc_cpu_affinity_check(phba, vectors);
9761
9762         return rc;
9763
9764 cfg_fail_out:
9765         /* free the irq already requested */
9766         for (--index; index >= 0; index--)
9767                 free_irq(pci_irq_vector(phba->pcidev, index),
9768                                 &phba->sli4_hba.hba_eq_hdl[index]);
9769
9770         /* Unconfigure MSI-X capability structure */
9771         pci_free_irq_vectors(phba->pcidev);
9772
9773 vec_fail_out:
9774         return rc;
9775 }
9776
9777 /**
9778  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9779  * @phba: pointer to lpfc hba data structure.
9780  *
9781  * This routine is invoked to enable the MSI interrupt mode to device with
9782  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9783  * to enable the MSI vector. The device driver is responsible for calling
9784  * the request_irq() to register MSI vector with a interrupt the handler,
9785  * which is done in this function.
9786  *
9787  * Return codes
9788  *      0 - successful
9789  *      other values - error
9790  **/
9791 static int
9792 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9793 {
9794         int rc, index;
9795
9796         rc = pci_enable_msi(phba->pcidev);
9797         if (!rc)
9798                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9799                                 "0487 PCI enable MSI mode success.\n");
9800         else {
9801                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9802                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
9803                 return rc;
9804         }
9805
9806         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9807                          0, LPFC_DRIVER_NAME, phba);
9808         if (rc) {
9809                 pci_disable_msi(phba->pcidev);
9810                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9811                                 "0490 MSI request_irq failed (%d)\n", rc);
9812                 return rc;
9813         }
9814
9815         for (index = 0; index < phba->io_channel_irqs; index++) {
9816                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9817                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9818         }
9819
9820         if (phba->cfg_fof) {
9821                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9822                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9823         }
9824         return 0;
9825 }
9826
9827 /**
9828  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9829  * @phba: pointer to lpfc hba data structure.
9830  *
9831  * This routine is invoked to enable device interrupt and associate driver's
9832  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9833  * interface spec. Depends on the interrupt mode configured to the driver,
9834  * the driver will try to fallback from the configured interrupt mode to an
9835  * interrupt mode which is supported by the platform, kernel, and device in
9836  * the order of:
9837  * MSI-X -> MSI -> IRQ.
9838  *
9839  * Return codes
9840  *      0 - successful
9841  *      other values - error
9842  **/
9843 static uint32_t
9844 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9845 {
9846         uint32_t intr_mode = LPFC_INTR_ERROR;
9847         int retval, idx;
9848
9849         if (cfg_mode == 2) {
9850                 /* Preparation before conf_msi mbox cmd */
9851                 retval = 0;
9852                 if (!retval) {
9853                         /* Now, try to enable MSI-X interrupt mode */
9854                         retval = lpfc_sli4_enable_msix(phba);
9855                         if (!retval) {
9856                                 /* Indicate initialization to MSI-X mode */
9857                                 phba->intr_type = MSIX;
9858                                 intr_mode = 2;
9859                         }
9860                 }
9861         }
9862
9863         /* Fallback to MSI if MSI-X initialization failed */
9864         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9865                 retval = lpfc_sli4_enable_msi(phba);
9866                 if (!retval) {
9867                         /* Indicate initialization to MSI mode */
9868                         phba->intr_type = MSI;
9869                         intr_mode = 1;
9870                 }
9871         }
9872
9873         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9874         if (phba->intr_type == NONE) {
9875                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9876                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9877                 if (!retval) {
9878                         struct lpfc_hba_eq_hdl *eqhdl;
9879
9880                         /* Indicate initialization to INTx mode */
9881                         phba->intr_type = INTx;
9882                         intr_mode = 0;
9883
9884                         for (idx = 0; idx < phba->io_channel_irqs; idx++) {
9885                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9886                                 eqhdl->idx = idx;
9887                                 eqhdl->phba = phba;
9888                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
9889                         }
9890                         if (phba->cfg_fof) {
9891                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9892                                 eqhdl->idx = idx;
9893                                 eqhdl->phba = phba;
9894                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
9895                         }
9896                 }
9897         }
9898         return intr_mode;
9899 }
9900
9901 /**
9902  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9903  * @phba: pointer to lpfc hba data structure.
9904  *
9905  * This routine is invoked to disable device interrupt and disassociate
9906  * the driver's interrupt handler(s) from interrupt vector(s) to device
9907  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9908  * will release the interrupt vector(s) for the message signaled interrupt.
9909  **/
9910 static void
9911 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9912 {
9913         /* Disable the currently initialized interrupt mode */
9914         if (phba->intr_type == MSIX) {
9915                 int index;
9916
9917                 /* Free up MSI-X multi-message vectors */
9918                 for (index = 0; index < phba->io_channel_irqs; index++)
9919                         free_irq(pci_irq_vector(phba->pcidev, index),
9920                                         &phba->sli4_hba.hba_eq_hdl[index]);
9921
9922                 if (phba->cfg_fof)
9923                         free_irq(pci_irq_vector(phba->pcidev, index),
9924                                         &phba->sli4_hba.hba_eq_hdl[index]);
9925         } else {
9926                 free_irq(phba->pcidev->irq, phba);
9927         }
9928
9929         pci_free_irq_vectors(phba->pcidev);
9930
9931         /* Reset interrupt management states */
9932         phba->intr_type = NONE;
9933         phba->sli.slistat.sli_intr = 0;
9934 }
9935
9936 /**
9937  * lpfc_unset_hba - Unset SLI3 hba device initialization
9938  * @phba: pointer to lpfc hba data structure.
9939  *
9940  * This routine is invoked to unset the HBA device initialization steps to
9941  * a device with SLI-3 interface spec.
9942  **/
9943 static void
9944 lpfc_unset_hba(struct lpfc_hba *phba)
9945 {
9946         struct lpfc_vport *vport = phba->pport;
9947         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
9948
9949         spin_lock_irq(shost->host_lock);
9950         vport->load_flag |= FC_UNLOADING;
9951         spin_unlock_irq(shost->host_lock);
9952
9953         kfree(phba->vpi_bmask);
9954         kfree(phba->vpi_ids);
9955
9956         lpfc_stop_hba_timers(phba);
9957
9958         phba->pport->work_port_events = 0;
9959
9960         lpfc_sli_hba_down(phba);
9961
9962         lpfc_sli_brdrestart(phba);
9963
9964         lpfc_sli_disable_intr(phba);
9965
9966         return;
9967 }
9968
9969 /**
9970  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9971  * @phba: Pointer to HBA context object.
9972  *
9973  * This function is called in the SLI4 code path to wait for completion
9974  * of device's XRIs exchange busy. It will check the XRI exchange busy
9975  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9976  * that, it will check the XRI exchange busy on outstanding FCP and ELS
9977  * I/Os every 30 seconds, log error message, and wait forever. Only when
9978  * all XRI exchange busy complete, the driver unload shall proceed with
9979  * invoking the function reset ioctl mailbox command to the CNA and the
9980  * the rest of the driver unload resource release.
9981  **/
9982 static void
9983 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9984 {
9985         int wait_time = 0;
9986         int nvme_xri_cmpl = 1;
9987         int nvmet_xri_cmpl = 1;
9988         int fcp_xri_cmpl = 1;
9989         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9990
9991         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
9992                 fcp_xri_cmpl =
9993                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9994         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9995                 nvme_xri_cmpl =
9996                         list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
9997                 nvmet_xri_cmpl =
9998                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
9999         }
10000
10001         while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
10002                !nvmet_xri_cmpl) {
10003                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10004                         if (!nvme_xri_cmpl)
10005                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10006                                                 "6100 NVME XRI exchange busy "
10007                                                 "wait time: %d seconds.\n",
10008                                                 wait_time/1000);
10009                         if (!fcp_xri_cmpl)
10010                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10011                                                 "2877 FCP XRI exchange busy "
10012                                                 "wait time: %d seconds.\n",
10013                                                 wait_time/1000);
10014                         if (!els_xri_cmpl)
10015                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10016                                                 "2878 ELS XRI exchange busy "
10017                                                 "wait time: %d seconds.\n",
10018                                                 wait_time/1000);
10019                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
10020                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
10021                 } else {
10022                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
10023                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
10024                 }
10025                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10026                         nvme_xri_cmpl = list_empty(
10027                                 &phba->sli4_hba.lpfc_abts_nvme_buf_list);
10028                         nvmet_xri_cmpl = list_empty(
10029                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10030                 }
10031
10032                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10033                         fcp_xri_cmpl = list_empty(
10034                                 &phba->sli4_hba.lpfc_abts_scsi_buf_list);
10035
10036                 els_xri_cmpl =
10037                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10038
10039         }
10040 }
10041
10042 /**
10043  * lpfc_sli4_hba_unset - Unset the fcoe hba
10044  * @phba: Pointer to HBA context object.
10045  *
10046  * This function is called in the SLI4 code path to reset the HBA's FCoE
10047  * function. The caller is not required to hold any lock. This routine
10048  * issues PCI function reset mailbox command to reset the FCoE function.
10049  * At the end of the function, it calls lpfc_hba_down_post function to
10050  * free any pending commands.
10051  **/
10052 static void
10053 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10054 {
10055         int wait_cnt = 0;
10056         LPFC_MBOXQ_t *mboxq;
10057         struct pci_dev *pdev = phba->pcidev;
10058
10059         lpfc_stop_hba_timers(phba);
10060         phba->sli4_hba.intr_enable = 0;
10061
10062         /*
10063          * Gracefully wait out the potential current outstanding asynchronous
10064          * mailbox command.
10065          */
10066
10067         /* First, block any pending async mailbox command from posted */
10068         spin_lock_irq(&phba->hbalock);
10069         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10070         spin_unlock_irq(&phba->hbalock);
10071         /* Now, trying to wait it out if we can */
10072         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10073                 msleep(10);
10074                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10075                         break;
10076         }
10077         /* Forcefully release the outstanding mailbox command if timed out */
10078         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10079                 spin_lock_irq(&phba->hbalock);
10080                 mboxq = phba->sli.mbox_active;
10081                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10082                 __lpfc_mbox_cmpl_put(phba, mboxq);
10083                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10084                 phba->sli.mbox_active = NULL;
10085                 spin_unlock_irq(&phba->hbalock);
10086         }
10087
10088         /* Abort all iocbs associated with the hba */
10089         lpfc_sli_hba_iocb_abort(phba);
10090
10091         /* Wait for completion of device XRI exchange busy */
10092         lpfc_sli4_xri_exchange_busy_wait(phba);
10093
10094         /* Disable PCI subsystem interrupt */
10095         lpfc_sli4_disable_intr(phba);
10096
10097         /* Disable SR-IOV if enabled */
10098         if (phba->cfg_sriov_nr_virtfn)
10099                 pci_disable_sriov(pdev);
10100
10101         /* Stop kthread signal shall trigger work_done one more time */
10102         kthread_stop(phba->worker_thread);
10103
10104         /* Unset the queues shared with the hardware then release all
10105          * allocated resources.
10106          */
10107         lpfc_sli4_queue_unset(phba);
10108         lpfc_sli4_queue_destroy(phba);
10109
10110         /* Reset SLI4 HBA FCoE function */
10111         lpfc_pci_function_reset(phba);
10112
10113         /* Stop the SLI4 device port */
10114         phba->pport->work_port_events = 0;
10115 }
10116
10117  /**
10118  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
10119  * @phba: Pointer to HBA context object.
10120  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10121  *
10122  * This function is called in the SLI4 code path to read the port's
10123  * sli4 capabilities.
10124  *
10125  * This function may be be called from any context that can block-wait
10126  * for the completion.  The expectation is that this routine is called
10127  * typically from probe_one or from the online routine.
10128  **/
10129 int
10130 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10131 {
10132         int rc;
10133         struct lpfc_mqe *mqe;
10134         struct lpfc_pc_sli4_params *sli4_params;
10135         uint32_t mbox_tmo;
10136
10137         rc = 0;
10138         mqe = &mboxq->u.mqe;
10139
10140         /* Read the port's SLI4 Parameters port capabilities */
10141         lpfc_pc_sli4_params(mboxq);
10142         if (!phba->sli4_hba.intr_enable)
10143                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10144         else {
10145                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10146                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10147         }
10148
10149         if (unlikely(rc))
10150                 return 1;
10151
10152         sli4_params = &phba->sli4_hba.pc_sli4_params;
10153         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
10154         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
10155         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
10156         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
10157                                              &mqe->un.sli4_params);
10158         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
10159                                              &mqe->un.sli4_params);
10160         sli4_params->proto_types = mqe->un.sli4_params.word3;
10161         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
10162         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
10163         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
10164         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
10165         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
10166         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
10167         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
10168         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
10169         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
10170         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
10171         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
10172         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
10173         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
10174         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
10175         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
10176         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
10177         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
10178         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
10179         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
10180         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
10181
10182         /* Make sure that sge_supp_len can be handled by the driver */
10183         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10184                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10185
10186         return rc;
10187 }
10188
10189 /**
10190  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10191  * @phba: Pointer to HBA context object.
10192  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10193  *
10194  * This function is called in the SLI4 code path to read the port's
10195  * sli4 capabilities.
10196  *
10197  * This function may be be called from any context that can block-wait
10198  * for the completion.  The expectation is that this routine is called
10199  * typically from probe_one or from the online routine.
10200  **/
10201 int
10202 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10203 {
10204         int rc;
10205         struct lpfc_mqe *mqe = &mboxq->u.mqe;
10206         struct lpfc_pc_sli4_params *sli4_params;
10207         uint32_t mbox_tmo;
10208         int length;
10209         struct lpfc_sli4_parameters *mbx_sli4_parameters;
10210
10211         /*
10212          * By default, the driver assumes the SLI4 port requires RPI
10213          * header postings.  The SLI4_PARAM response will correct this
10214          * assumption.
10215          */
10216         phba->sli4_hba.rpi_hdrs_in_use = 1;
10217
10218         /* Read the port's SLI4 Config Parameters */
10219         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10220                   sizeof(struct lpfc_sli4_cfg_mhdr));
10221         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10222                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10223                          length, LPFC_SLI4_MBX_EMBED);
10224         if (!phba->sli4_hba.intr_enable)
10225                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10226         else {
10227                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10228                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10229         }
10230         if (unlikely(rc))
10231                 return rc;
10232         sli4_params = &phba->sli4_hba.pc_sli4_params;
10233         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10234         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10235         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10236         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10237         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10238                                              mbx_sli4_parameters);
10239         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10240                                              mbx_sli4_parameters);
10241         if (bf_get(cfg_phwq, mbx_sli4_parameters))
10242                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10243         else
10244                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10245         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10246         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
10247         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10248         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10249         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10250         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10251         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10252         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10253         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10254                                             mbx_sli4_parameters);
10255         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10256         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10257                                            mbx_sli4_parameters);
10258         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10259         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10260         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10261                               bf_get(cfg_xib, mbx_sli4_parameters));
10262
10263         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10264             !phba->nvme_support) {
10265                 phba->nvme_support = 0;
10266                 phba->nvmet_support = 0;
10267                 phba->cfg_nvmet_mrq = 0;
10268                 phba->cfg_nvme_io_channel = 0;
10269                 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10270                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10271                                 "6101 Disabling NVME support: "
10272                                 "Not supported by firmware: %d %d\n",
10273                                 bf_get(cfg_nvme, mbx_sli4_parameters),
10274                                 bf_get(cfg_xib, mbx_sli4_parameters));
10275
10276                 /* If firmware doesn't support NVME, just use SCSI support */
10277                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10278                         return -ENODEV;
10279                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10280         }
10281
10282         if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp)
10283                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10284
10285         /* Make sure that sge_supp_len can be handled by the driver */
10286         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10287                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10288
10289         /*
10290          * Issue IOs with CDB embedded in WQE to minimized the number
10291          * of DMAs the firmware has to do. Setting this to 1 also forces
10292          * the driver to use 128 bytes WQEs for FCP IOs.
10293          */
10294         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10295                 phba->fcp_embed_io = 1;
10296         else
10297                 phba->fcp_embed_io = 0;
10298
10299         /*
10300          * Check if the SLI port supports MDS Diagnostics
10301          */
10302         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10303                 phba->mds_diags_support = 1;
10304         else
10305                 phba->mds_diags_support = 0;
10306         return 0;
10307 }
10308
10309 /**
10310  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10311  * @pdev: pointer to PCI device
10312  * @pid: pointer to PCI device identifier
10313  *
10314  * This routine is to be called to attach a device with SLI-3 interface spec
10315  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10316  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10317  * information of the device and driver to see if the driver state that it can
10318  * support this kind of device. If the match is successful, the driver core
10319  * invokes this routine. If this routine determines it can claim the HBA, it
10320  * does all the initialization that it needs to do to handle the HBA properly.
10321  *
10322  * Return code
10323  *      0 - driver can claim the device
10324  *      negative value - driver can not claim the device
10325  **/
10326 static int
10327 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10328 {
10329         struct lpfc_hba   *phba;
10330         struct lpfc_vport *vport = NULL;
10331         struct Scsi_Host  *shost = NULL;
10332         int error;
10333         uint32_t cfg_mode, intr_mode;
10334
10335         /* Allocate memory for HBA structure */
10336         phba = lpfc_hba_alloc(pdev);
10337         if (!phba)
10338                 return -ENOMEM;
10339
10340         /* Perform generic PCI device enabling operation */
10341         error = lpfc_enable_pci_dev(phba);
10342         if (error)
10343                 goto out_free_phba;
10344
10345         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
10346         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10347         if (error)
10348                 goto out_disable_pci_dev;
10349
10350         /* Set up SLI-3 specific device PCI memory space */
10351         error = lpfc_sli_pci_mem_setup(phba);
10352         if (error) {
10353                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10354                                 "1402 Failed to set up pci memory space.\n");
10355                 goto out_disable_pci_dev;
10356         }
10357
10358         /* Set up SLI-3 specific device driver resources */
10359         error = lpfc_sli_driver_resource_setup(phba);
10360         if (error) {
10361                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10362                                 "1404 Failed to set up driver resource.\n");
10363                 goto out_unset_pci_mem_s3;
10364         }
10365
10366         /* Initialize and populate the iocb list per host */
10367
10368         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
10369         if (error) {
10370                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10371                                 "1405 Failed to initialize iocb list.\n");
10372                 goto out_unset_driver_resource_s3;
10373         }
10374
10375         /* Set up common device driver resources */
10376         error = lpfc_setup_driver_resource_phase2(phba);
10377         if (error) {
10378                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10379                                 "1406 Failed to set up driver resource.\n");
10380                 goto out_free_iocb_list;
10381         }
10382
10383         /* Get the default values for Model Name and Description */
10384         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10385
10386         /* Create SCSI host to the physical port */
10387         error = lpfc_create_shost(phba);
10388         if (error) {
10389                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10390                                 "1407 Failed to create scsi host.\n");
10391                 goto out_unset_driver_resource;
10392         }
10393
10394         /* Configure sysfs attributes */
10395         vport = phba->pport;
10396         error = lpfc_alloc_sysfs_attr(vport);
10397         if (error) {
10398                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10399                                 "1476 Failed to allocate sysfs attr\n");
10400                 goto out_destroy_shost;
10401         }
10402
10403         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10404         /* Now, trying to enable interrupt and bring up the device */
10405         cfg_mode = phba->cfg_use_msi;
10406         while (true) {
10407                 /* Put device to a known state before enabling interrupt */
10408                 lpfc_stop_port(phba);
10409                 /* Configure and enable interrupt */
10410                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
10411                 if (intr_mode == LPFC_INTR_ERROR) {
10412                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10413                                         "0431 Failed to enable interrupt.\n");
10414                         error = -ENODEV;
10415                         goto out_free_sysfs_attr;
10416                 }
10417                 /* SLI-3 HBA setup */
10418                 if (lpfc_sli_hba_setup(phba)) {
10419                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10420                                         "1477 Failed to set up hba\n");
10421                         error = -ENODEV;
10422                         goto out_remove_device;
10423                 }
10424
10425                 /* Wait 50ms for the interrupts of previous mailbox commands */
10426                 msleep(50);
10427                 /* Check active interrupts on message signaled interrupts */
10428                 if (intr_mode == 0 ||
10429                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
10430                         /* Log the current active interrupt mode */
10431                         phba->intr_mode = intr_mode;
10432                         lpfc_log_intr_mode(phba, intr_mode);
10433                         break;
10434                 } else {
10435                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10436                                         "0447 Configure interrupt mode (%d) "
10437                                         "failed active interrupt test.\n",
10438                                         intr_mode);
10439                         /* Disable the current interrupt mode */
10440                         lpfc_sli_disable_intr(phba);
10441                         /* Try next level of interrupt mode */
10442                         cfg_mode = --intr_mode;
10443                 }
10444         }
10445
10446         /* Perform post initialization setup */
10447         lpfc_post_init_setup(phba);
10448
10449         /* Check if there are static vports to be created. */
10450         lpfc_create_static_vport(phba);
10451
10452         return 0;
10453
10454 out_remove_device:
10455         lpfc_unset_hba(phba);
10456 out_free_sysfs_attr:
10457         lpfc_free_sysfs_attr(vport);
10458 out_destroy_shost:
10459         lpfc_destroy_shost(phba);
10460 out_unset_driver_resource:
10461         lpfc_unset_driver_resource_phase2(phba);
10462 out_free_iocb_list:
10463         lpfc_free_iocb_list(phba);
10464 out_unset_driver_resource_s3:
10465         lpfc_sli_driver_resource_unset(phba);
10466 out_unset_pci_mem_s3:
10467         lpfc_sli_pci_mem_unset(phba);
10468 out_disable_pci_dev:
10469         lpfc_disable_pci_dev(phba);
10470         if (shost)
10471                 scsi_host_put(shost);
10472 out_free_phba:
10473         lpfc_hba_free(phba);
10474         return error;
10475 }
10476
10477 /**
10478  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
10479  * @pdev: pointer to PCI device
10480  *
10481  * This routine is to be called to disattach a device with SLI-3 interface
10482  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10483  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10484  * device to be removed from the PCI subsystem properly.
10485  **/
10486 static void
10487 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
10488 {
10489         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
10490         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10491         struct lpfc_vport **vports;
10492         struct lpfc_hba   *phba = vport->phba;
10493         int i;
10494
10495         spin_lock_irq(&phba->hbalock);
10496         vport->load_flag |= FC_UNLOADING;
10497         spin_unlock_irq(&phba->hbalock);
10498
10499         lpfc_free_sysfs_attr(vport);
10500
10501         /* Release all the vports against this physical port */
10502         vports = lpfc_create_vport_work_array(phba);
10503         if (vports != NULL)
10504                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10505                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10506                                 continue;
10507                         fc_vport_terminate(vports[i]->fc_vport);
10508                 }
10509         lpfc_destroy_vport_work_array(phba, vports);
10510
10511         /* Remove FC host and then SCSI host with the physical port */
10512         fc_remove_host(shost);
10513         scsi_remove_host(shost);
10514
10515         lpfc_cleanup(vport);
10516
10517         /*
10518          * Bring down the SLI Layer. This step disable all interrupts,
10519          * clears the rings, discards all mailbox commands, and resets
10520          * the HBA.
10521          */
10522
10523         /* HBA interrupt will be disabled after this call */
10524         lpfc_sli_hba_down(phba);
10525         /* Stop kthread signal shall trigger work_done one more time */
10526         kthread_stop(phba->worker_thread);
10527         /* Final cleanup of txcmplq and reset the HBA */
10528         lpfc_sli_brdrestart(phba);
10529
10530         kfree(phba->vpi_bmask);
10531         kfree(phba->vpi_ids);
10532
10533         lpfc_stop_hba_timers(phba);
10534         spin_lock_irq(&phba->hbalock);
10535         list_del_init(&vport->listentry);
10536         spin_unlock_irq(&phba->hbalock);
10537
10538         lpfc_debugfs_terminate(vport);
10539
10540         /* Disable SR-IOV if enabled */
10541         if (phba->cfg_sriov_nr_virtfn)
10542                 pci_disable_sriov(pdev);
10543
10544         /* Disable interrupt */
10545         lpfc_sli_disable_intr(phba);
10546
10547         scsi_host_put(shost);
10548
10549         /*
10550          * Call scsi_free before mem_free since scsi bufs are released to their
10551          * corresponding pools here.
10552          */
10553         lpfc_scsi_free(phba);
10554         lpfc_mem_free_all(phba);
10555
10556         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
10557                           phba->hbqslimp.virt, phba->hbqslimp.phys);
10558
10559         /* Free resources associated with SLI2 interface */
10560         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
10561                           phba->slim2p.virt, phba->slim2p.phys);
10562
10563         /* unmap adapter SLIM and Control Registers */
10564         iounmap(phba->ctrl_regs_memmap_p);
10565         iounmap(phba->slim_memmap_p);
10566
10567         lpfc_hba_free(phba);
10568
10569         pci_release_mem_regions(pdev);
10570         pci_disable_device(pdev);
10571 }
10572
10573 /**
10574  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
10575  * @pdev: pointer to PCI device
10576  * @msg: power management message
10577  *
10578  * This routine is to be called from the kernel's PCI subsystem to support
10579  * system Power Management (PM) to device with SLI-3 interface spec. When
10580  * PM invokes this method, it quiesces the device by stopping the driver's
10581  * worker thread for the device, turning off device's interrupt and DMA,
10582  * and bring the device offline. Note that as the driver implements the
10583  * minimum PM requirements to a power-aware driver's PM support for the
10584  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10585  * to the suspend() method call will be treated as SUSPEND and the driver will
10586  * fully reinitialize its device during resume() method call, the driver will
10587  * set device to PCI_D3hot state in PCI config space instead of setting it
10588  * according to the @msg provided by the PM.
10589  *
10590  * Return code
10591  *      0 - driver suspended the device
10592  *      Error otherwise
10593  **/
10594 static int
10595 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
10596 {
10597         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10598         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10599
10600         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10601                         "0473 PCI device Power Management suspend.\n");
10602
10603         /* Bring down the device */
10604         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10605         lpfc_offline(phba);
10606         kthread_stop(phba->worker_thread);
10607
10608         /* Disable interrupt from device */
10609         lpfc_sli_disable_intr(phba);
10610
10611         /* Save device state to PCI config space */
10612         pci_save_state(pdev);
10613         pci_set_power_state(pdev, PCI_D3hot);
10614
10615         return 0;
10616 }
10617
10618 /**
10619  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
10620  * @pdev: pointer to PCI device
10621  *
10622  * This routine is to be called from the kernel's PCI subsystem to support
10623  * system Power Management (PM) to device with SLI-3 interface spec. When PM
10624  * invokes this method, it restores the device's PCI config space state and
10625  * fully reinitializes the device and brings it online. Note that as the
10626  * driver implements the minimum PM requirements to a power-aware driver's
10627  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
10628  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
10629  * driver will fully reinitialize its device during resume() method call,
10630  * the device will be set to PCI_D0 directly in PCI config space before
10631  * restoring the state.
10632  *
10633  * Return code
10634  *      0 - driver suspended the device
10635  *      Error otherwise
10636  **/
10637 static int
10638 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
10639 {
10640         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10641         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10642         uint32_t intr_mode;
10643         int error;
10644
10645         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10646                         "0452 PCI device Power Management resume.\n");
10647
10648         /* Restore device state from PCI config space */
10649         pci_set_power_state(pdev, PCI_D0);
10650         pci_restore_state(pdev);
10651
10652         /*
10653          * As the new kernel behavior of pci_restore_state() API call clears
10654          * device saved_state flag, need to save the restored state again.
10655          */
10656         pci_save_state(pdev);
10657
10658         if (pdev->is_busmaster)
10659                 pci_set_master(pdev);
10660
10661         /* Startup the kernel thread for this host adapter. */
10662         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10663                                         "lpfc_worker_%d", phba->brd_no);
10664         if (IS_ERR(phba->worker_thread)) {
10665                 error = PTR_ERR(phba->worker_thread);
10666                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10667                                 "0434 PM resume failed to start worker "
10668                                 "thread: error=x%x.\n", error);
10669                 return error;
10670         }
10671
10672         /* Configure and enable interrupt */
10673         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10674         if (intr_mode == LPFC_INTR_ERROR) {
10675                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10676                                 "0430 PM resume Failed to enable interrupt\n");
10677                 return -EIO;
10678         } else
10679                 phba->intr_mode = intr_mode;
10680
10681         /* Restart HBA and bring it online */
10682         lpfc_sli_brdrestart(phba);
10683         lpfc_online(phba);
10684
10685         /* Log the current active interrupt mode */
10686         lpfc_log_intr_mode(phba, phba->intr_mode);
10687
10688         return 0;
10689 }
10690
10691 /**
10692  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
10693  * @phba: pointer to lpfc hba data structure.
10694  *
10695  * This routine is called to prepare the SLI3 device for PCI slot recover. It
10696  * aborts all the outstanding SCSI I/Os to the pci device.
10697  **/
10698 static void
10699 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
10700 {
10701         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10702                         "2723 PCI channel I/O abort preparing for recovery\n");
10703
10704         /*
10705          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10706          * and let the SCSI mid-layer to retry them to recover.
10707          */
10708         lpfc_sli_abort_fcp_rings(phba);
10709 }
10710
10711 /**
10712  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
10713  * @phba: pointer to lpfc hba data structure.
10714  *
10715  * This routine is called to prepare the SLI3 device for PCI slot reset. It
10716  * disables the device interrupt and pci device, and aborts the internal FCP
10717  * pending I/Os.
10718  **/
10719 static void
10720 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
10721 {
10722         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10723                         "2710 PCI channel disable preparing for reset\n");
10724
10725         /* Block any management I/Os to the device */
10726         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
10727
10728         /* Block all SCSI devices' I/Os on the host */
10729         lpfc_scsi_dev_block(phba);
10730
10731         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10732         lpfc_sli_flush_fcp_rings(phba);
10733
10734         /* stop all timers */
10735         lpfc_stop_hba_timers(phba);
10736
10737         /* Disable interrupt and pci device */
10738         lpfc_sli_disable_intr(phba);
10739         pci_disable_device(phba->pcidev);
10740 }
10741
10742 /**
10743  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
10744  * @phba: pointer to lpfc hba data structure.
10745  *
10746  * This routine is called to prepare the SLI3 device for PCI slot permanently
10747  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10748  * pending I/Os.
10749  **/
10750 static void
10751 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10752 {
10753         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10754                         "2711 PCI channel permanent disable for failure\n");
10755         /* Block all SCSI devices' I/Os on the host */
10756         lpfc_scsi_dev_block(phba);
10757
10758         /* stop all timers */
10759         lpfc_stop_hba_timers(phba);
10760
10761         /* Clean up all driver's outstanding SCSI I/Os */
10762         lpfc_sli_flush_fcp_rings(phba);
10763 }
10764
10765 /**
10766  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
10767  * @pdev: pointer to PCI device.
10768  * @state: the current PCI connection state.
10769  *
10770  * This routine is called from the PCI subsystem for I/O error handling to
10771  * device with SLI-3 interface spec. This function is called by the PCI
10772  * subsystem after a PCI bus error affecting this device has been detected.
10773  * When this function is invoked, it will need to stop all the I/Os and
10774  * interrupt(s) to the device. Once that is done, it will return
10775  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
10776  * as desired.
10777  *
10778  * Return codes
10779  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
10780  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10781  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10782  **/
10783 static pci_ers_result_t
10784 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
10785 {
10786         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10787         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10788
10789         switch (state) {
10790         case pci_channel_io_normal:
10791                 /* Non-fatal error, prepare for recovery */
10792                 lpfc_sli_prep_dev_for_recover(phba);
10793                 return PCI_ERS_RESULT_CAN_RECOVER;
10794         case pci_channel_io_frozen:
10795                 /* Fatal error, prepare for slot reset */
10796                 lpfc_sli_prep_dev_for_reset(phba);
10797                 return PCI_ERS_RESULT_NEED_RESET;
10798         case pci_channel_io_perm_failure:
10799                 /* Permanent failure, prepare for device down */
10800                 lpfc_sli_prep_dev_for_perm_failure(phba);
10801                 return PCI_ERS_RESULT_DISCONNECT;
10802         default:
10803                 /* Unknown state, prepare and request slot reset */
10804                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10805                                 "0472 Unknown PCI error state: x%x\n", state);
10806                 lpfc_sli_prep_dev_for_reset(phba);
10807                 return PCI_ERS_RESULT_NEED_RESET;
10808         }
10809 }
10810
10811 /**
10812  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10813  * @pdev: pointer to PCI device.
10814  *
10815  * This routine is called from the PCI subsystem for error handling to
10816  * device with SLI-3 interface spec. This is called after PCI bus has been
10817  * reset to restart the PCI card from scratch, as if from a cold-boot.
10818  * During the PCI subsystem error recovery, after driver returns
10819  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10820  * recovery and then call this routine before calling the .resume method
10821  * to recover the device. This function will initialize the HBA device,
10822  * enable the interrupt, but it will just put the HBA to offline state
10823  * without passing any I/O traffic.
10824  *
10825  * Return codes
10826  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10827  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10828  */
10829 static pci_ers_result_t
10830 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10831 {
10832         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10833         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10834         struct lpfc_sli *psli = &phba->sli;
10835         uint32_t intr_mode;
10836
10837         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10838         if (pci_enable_device_mem(pdev)) {
10839                 printk(KERN_ERR "lpfc: Cannot re-enable "
10840                         "PCI device after reset.\n");
10841                 return PCI_ERS_RESULT_DISCONNECT;
10842         }
10843
10844         pci_restore_state(pdev);
10845
10846         /*
10847          * As the new kernel behavior of pci_restore_state() API call clears
10848          * device saved_state flag, need to save the restored state again.
10849          */
10850         pci_save_state(pdev);
10851
10852         if (pdev->is_busmaster)
10853                 pci_set_master(pdev);
10854
10855         spin_lock_irq(&phba->hbalock);
10856         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10857         spin_unlock_irq(&phba->hbalock);
10858
10859         /* Configure and enable interrupt */
10860         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10861         if (intr_mode == LPFC_INTR_ERROR) {
10862                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10863                                 "0427 Cannot re-enable interrupt after "
10864                                 "slot reset.\n");
10865                 return PCI_ERS_RESULT_DISCONNECT;
10866         } else
10867                 phba->intr_mode = intr_mode;
10868
10869         /* Take device offline, it will perform cleanup */
10870         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10871         lpfc_offline(phba);
10872         lpfc_sli_brdrestart(phba);
10873
10874         /* Log the current active interrupt mode */
10875         lpfc_log_intr_mode(phba, phba->intr_mode);
10876
10877         return PCI_ERS_RESULT_RECOVERED;
10878 }
10879
10880 /**
10881  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10882  * @pdev: pointer to PCI device
10883  *
10884  * This routine is called from the PCI subsystem for error handling to device
10885  * with SLI-3 interface spec. It is called when kernel error recovery tells
10886  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10887  * error recovery. After this call, traffic can start to flow from this device
10888  * again.
10889  */
10890 static void
10891 lpfc_io_resume_s3(struct pci_dev *pdev)
10892 {
10893         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10894         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10895
10896         /* Bring device online, it will be no-op for non-fatal error resume */
10897         lpfc_online(phba);
10898
10899         /* Clean up Advanced Error Reporting (AER) if needed */
10900         if (phba->hba_flag & HBA_AER_ENABLED)
10901                 pci_cleanup_aer_uncorrect_error_status(pdev);
10902 }
10903
10904 /**
10905  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10906  * @phba: pointer to lpfc hba data structure.
10907  *
10908  * returns the number of ELS/CT IOCBs to reserve
10909  **/
10910 int
10911 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10912 {
10913         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10914
10915         if (phba->sli_rev == LPFC_SLI_REV4) {
10916                 if (max_xri <= 100)
10917                         return 10;
10918                 else if (max_xri <= 256)
10919                         return 25;
10920                 else if (max_xri <= 512)
10921                         return 50;
10922                 else if (max_xri <= 1024)
10923                         return 100;
10924                 else if (max_xri <= 1536)
10925                         return 150;
10926                 else if (max_xri <= 2048)
10927                         return 200;
10928                 else
10929                         return 250;
10930         } else
10931                 return 0;
10932 }
10933
10934 /**
10935  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
10936  * @phba: pointer to lpfc hba data structure.
10937  *
10938  * returns the number of ELS/CT + NVMET IOCBs to reserve
10939  **/
10940 int
10941 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
10942 {
10943         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
10944
10945         if (phba->nvmet_support)
10946                 max_xri += LPFC_NVMET_BUF_POST;
10947         return max_xri;
10948 }
10949
10950
10951 /**
10952  * lpfc_write_firmware - attempt to write a firmware image to the port
10953  * @fw: pointer to firmware image returned from request_firmware.
10954  * @phba: pointer to lpfc hba data structure.
10955  *
10956  **/
10957 static void
10958 lpfc_write_firmware(const struct firmware *fw, void *context)
10959 {
10960         struct lpfc_hba *phba = (struct lpfc_hba *)context;
10961         char fwrev[FW_REV_STR_SIZE];
10962         struct lpfc_grp_hdr *image;
10963         struct list_head dma_buffer_list;
10964         int i, rc = 0;
10965         struct lpfc_dmabuf *dmabuf, *next;
10966         uint32_t offset = 0, temp_offset = 0;
10967         uint32_t magic_number, ftype, fid, fsize;
10968
10969         /* It can be null in no-wait mode, sanity check */
10970         if (!fw) {
10971                 rc = -ENXIO;
10972                 goto out;
10973         }
10974         image = (struct lpfc_grp_hdr *)fw->data;
10975
10976         magic_number = be32_to_cpu(image->magic_number);
10977         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
10978         fid = bf_get_be32(lpfc_grp_hdr_id, image),
10979         fsize = be32_to_cpu(image->size);
10980
10981         INIT_LIST_HEAD(&dma_buffer_list);
10982         if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 &&
10983              magic_number != LPFC_GROUP_OJECT_MAGIC_G6) ||
10984             ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) {
10985                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10986                                 "3022 Invalid FW image found. "
10987                                 "Magic:%x Type:%x ID:%x Size %d %zd\n",
10988                                 magic_number, ftype, fid, fsize, fw->size);
10989                 rc = -EINVAL;
10990                 goto release_out;
10991         }
10992         lpfc_decode_firmware_rev(phba, fwrev, 1);
10993         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10994                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10995                                 "3023 Updating Firmware, Current Version:%s "
10996                                 "New Version:%s\n",
10997                                 fwrev, image->revision);
10998                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10999                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
11000                                          GFP_KERNEL);
11001                         if (!dmabuf) {
11002                                 rc = -ENOMEM;
11003                                 goto release_out;
11004                         }
11005                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11006                                                           SLI4_PAGE_SIZE,
11007                                                           &dmabuf->phys,
11008                                                           GFP_KERNEL);
11009                         if (!dmabuf->virt) {
11010                                 kfree(dmabuf);
11011                                 rc = -ENOMEM;
11012                                 goto release_out;
11013                         }
11014                         list_add_tail(&dmabuf->list, &dma_buffer_list);
11015                 }
11016                 while (offset < fw->size) {
11017                         temp_offset = offset;
11018                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
11019                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
11020                                         memcpy(dmabuf->virt,
11021                                                fw->data + temp_offset,
11022                                                fw->size - temp_offset);
11023                                         temp_offset = fw->size;
11024                                         break;
11025                                 }
11026                                 memcpy(dmabuf->virt, fw->data + temp_offset,
11027                                        SLI4_PAGE_SIZE);
11028                                 temp_offset += SLI4_PAGE_SIZE;
11029                         }
11030                         rc = lpfc_wr_object(phba, &dma_buffer_list,
11031                                     (fw->size - offset), &offset);
11032                         if (rc)
11033                                 goto release_out;
11034                 }
11035                 rc = offset;
11036         }
11037
11038 release_out:
11039         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
11040                 list_del(&dmabuf->list);
11041                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11042                                   dmabuf->virt, dmabuf->phys);
11043                 kfree(dmabuf);
11044         }
11045         release_firmware(fw);
11046 out:
11047         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11048                         "3024 Firmware update done: %d.\n", rc);
11049         return;
11050 }
11051
11052 /**
11053  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11054  * @phba: pointer to lpfc hba data structure.
11055  *
11056  * This routine is called to perform Linux generic firmware upgrade on device
11057  * that supports such feature.
11058  **/
11059 int
11060 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11061 {
11062         uint8_t file_name[ELX_MODEL_NAME_SIZE];
11063         int ret;
11064         const struct firmware *fw;
11065
11066         /* Only supported on SLI4 interface type 2 for now */
11067         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11068             LPFC_SLI_INTF_IF_TYPE_2)
11069                 return -EPERM;
11070
11071         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
11072
11073         if (fw_upgrade == INT_FW_UPGRADE) {
11074                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11075                                         file_name, &phba->pcidev->dev,
11076                                         GFP_KERNEL, (void *)phba,
11077                                         lpfc_write_firmware);
11078         } else if (fw_upgrade == RUN_FW_UPGRADE) {
11079                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
11080                 if (!ret)
11081                         lpfc_write_firmware(fw, (void *)phba);
11082         } else {
11083                 ret = -EINVAL;
11084         }
11085
11086         return ret;
11087 }
11088
11089 /**
11090  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11091  * @pdev: pointer to PCI device
11092  * @pid: pointer to PCI device identifier
11093  *
11094  * This routine is called from the kernel's PCI subsystem to device with
11095  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11096  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11097  * information of the device and driver to see if the driver state that it
11098  * can support this kind of device. If the match is successful, the driver
11099  * core invokes this routine. If this routine determines it can claim the HBA,
11100  * it does all the initialization that it needs to do to handle the HBA
11101  * properly.
11102  *
11103  * Return code
11104  *      0 - driver can claim the device
11105  *      negative value - driver can not claim the device
11106  **/
11107 static int
11108 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11109 {
11110         struct lpfc_hba   *phba;
11111         struct lpfc_vport *vport = NULL;
11112         struct Scsi_Host  *shost = NULL;
11113         int error, cnt;
11114         uint32_t cfg_mode, intr_mode;
11115
11116         /* Allocate memory for HBA structure */
11117         phba = lpfc_hba_alloc(pdev);
11118         if (!phba)
11119                 return -ENOMEM;
11120
11121         /* Perform generic PCI device enabling operation */
11122         error = lpfc_enable_pci_dev(phba);
11123         if (error)
11124                 goto out_free_phba;
11125
11126         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
11127         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11128         if (error)
11129                 goto out_disable_pci_dev;
11130
11131         /* Set up SLI-4 specific device PCI memory space */
11132         error = lpfc_sli4_pci_mem_setup(phba);
11133         if (error) {
11134                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11135                                 "1410 Failed to set up pci memory space.\n");
11136                 goto out_disable_pci_dev;
11137         }
11138
11139         /* Set up SLI-4 Specific device driver resources */
11140         error = lpfc_sli4_driver_resource_setup(phba);
11141         if (error) {
11142                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11143                                 "1412 Failed to set up driver resource.\n");
11144                 goto out_unset_pci_mem_s4;
11145         }
11146
11147         cnt = phba->cfg_iocb_cnt * 1024;
11148         if (phba->nvmet_support)
11149                 cnt += phba->cfg_nvmet_mrq_post * phba->cfg_nvmet_mrq;
11150
11151         /* Initialize and populate the iocb list per host */
11152         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11153                         "2821 initialize iocb list %d total %d\n",
11154                         phba->cfg_iocb_cnt, cnt);
11155         error = lpfc_init_iocb_list(phba, cnt);
11156
11157         if (error) {
11158                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11159                                 "1413 Failed to initialize iocb list.\n");
11160                 goto out_unset_driver_resource_s4;
11161         }
11162
11163         INIT_LIST_HEAD(&phba->active_rrq_list);
11164         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11165
11166         /* Set up common device driver resources */
11167         error = lpfc_setup_driver_resource_phase2(phba);
11168         if (error) {
11169                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11170                                 "1414 Failed to set up driver resource.\n");
11171                 goto out_free_iocb_list;
11172         }
11173
11174         /* Get the default values for Model Name and Description */
11175         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11176
11177         /* Create SCSI host to the physical port */
11178         error = lpfc_create_shost(phba);
11179         if (error) {
11180                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11181                                 "1415 Failed to create scsi host.\n");
11182                 goto out_unset_driver_resource;
11183         }
11184
11185         /* Configure sysfs attributes */
11186         vport = phba->pport;
11187         error = lpfc_alloc_sysfs_attr(vport);
11188         if (error) {
11189                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11190                                 "1416 Failed to allocate sysfs attr\n");
11191                 goto out_destroy_shost;
11192         }
11193
11194         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11195         /* Now, trying to enable interrupt and bring up the device */
11196         cfg_mode = phba->cfg_use_msi;
11197
11198         /* Put device to a known state before enabling interrupt */
11199         lpfc_stop_port(phba);
11200
11201         /* Configure and enable interrupt */
11202         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11203         if (intr_mode == LPFC_INTR_ERROR) {
11204                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11205                                 "0426 Failed to enable interrupt.\n");
11206                 error = -ENODEV;
11207                 goto out_free_sysfs_attr;
11208         }
11209         /* Default to single EQ for non-MSI-X */
11210         if (phba->intr_type != MSIX) {
11211                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11212                         phba->cfg_fcp_io_channel = 1;
11213                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11214                         phba->cfg_nvme_io_channel = 1;
11215                         if (phba->nvmet_support)
11216                                 phba->cfg_nvmet_mrq = 1;
11217                 }
11218                 phba->io_channel_irqs = 1;
11219         }
11220
11221         /* Set up SLI-4 HBA */
11222         if (lpfc_sli4_hba_setup(phba)) {
11223                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11224                                 "1421 Failed to set up hba\n");
11225                 error = -ENODEV;
11226                 goto out_disable_intr;
11227         }
11228
11229         /* Log the current active interrupt mode */
11230         phba->intr_mode = intr_mode;
11231         lpfc_log_intr_mode(phba, intr_mode);
11232
11233         /* Perform post initialization setup */
11234         lpfc_post_init_setup(phba);
11235
11236         /* NVME support in FW earlier in the driver load corrects the
11237          * FC4 type making a check for nvme_support unnecessary.
11238          */
11239         if ((phba->nvmet_support == 0) &&
11240             (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11241                 /* Create NVME binding with nvme_fc_transport. This
11242                  * ensures the vport is initialized.  If the localport
11243                  * create fails, it should not unload the driver to
11244                  * support field issues.
11245                  */
11246                 error = lpfc_nvme_create_localport(vport);
11247                 if (error) {
11248                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11249                                         "6004 NVME registration failed, "
11250                                         "error x%x\n",
11251                                         error);
11252                 }
11253         }
11254
11255         /* check for firmware upgrade or downgrade */
11256         if (phba->cfg_request_firmware_upgrade)
11257                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11258
11259         /* Check if there are static vports to be created. */
11260         lpfc_create_static_vport(phba);
11261         return 0;
11262
11263 out_disable_intr:
11264         lpfc_sli4_disable_intr(phba);
11265 out_free_sysfs_attr:
11266         lpfc_free_sysfs_attr(vport);
11267 out_destroy_shost:
11268         lpfc_destroy_shost(phba);
11269 out_unset_driver_resource:
11270         lpfc_unset_driver_resource_phase2(phba);
11271 out_free_iocb_list:
11272         lpfc_free_iocb_list(phba);
11273 out_unset_driver_resource_s4:
11274         lpfc_sli4_driver_resource_unset(phba);
11275 out_unset_pci_mem_s4:
11276         lpfc_sli4_pci_mem_unset(phba);
11277 out_disable_pci_dev:
11278         lpfc_disable_pci_dev(phba);
11279         if (shost)
11280                 scsi_host_put(shost);
11281 out_free_phba:
11282         lpfc_hba_free(phba);
11283         return error;
11284 }
11285
11286 /**
11287  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11288  * @pdev: pointer to PCI device
11289  *
11290  * This routine is called from the kernel's PCI subsystem to device with
11291  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11292  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11293  * device to be removed from the PCI subsystem properly.
11294  **/
11295 static void
11296 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11297 {
11298         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11299         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11300         struct lpfc_vport **vports;
11301         struct lpfc_hba *phba = vport->phba;
11302         int i;
11303
11304         /* Mark the device unloading flag */
11305         spin_lock_irq(&phba->hbalock);
11306         vport->load_flag |= FC_UNLOADING;
11307         spin_unlock_irq(&phba->hbalock);
11308
11309         /* Free the HBA sysfs attributes */
11310         lpfc_free_sysfs_attr(vport);
11311
11312         /* Release all the vports against this physical port */
11313         vports = lpfc_create_vport_work_array(phba);
11314         if (vports != NULL)
11315                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11316                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11317                                 continue;
11318                         fc_vport_terminate(vports[i]->fc_vport);
11319                 }
11320         lpfc_destroy_vport_work_array(phba, vports);
11321
11322         /* Remove FC host and then SCSI host with the physical port */
11323         fc_remove_host(shost);
11324         scsi_remove_host(shost);
11325
11326         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
11327          * localports are destroyed after to cleanup all transport memory.
11328          */
11329         lpfc_cleanup(vport);
11330         lpfc_nvmet_destroy_targetport(phba);
11331         lpfc_nvme_destroy_localport(vport);
11332
11333         /*
11334          * Bring down the SLI Layer. This step disables all interrupts,
11335          * clears the rings, discards all mailbox commands, and resets
11336          * the HBA FCoE function.
11337          */
11338         lpfc_debugfs_terminate(vport);
11339         lpfc_sli4_hba_unset(phba);
11340
11341         spin_lock_irq(&phba->hbalock);
11342         list_del_init(&vport->listentry);
11343         spin_unlock_irq(&phba->hbalock);
11344
11345         /* Perform scsi free before driver resource_unset since scsi
11346          * buffers are released to their corresponding pools here.
11347          */
11348         lpfc_scsi_free(phba);
11349         lpfc_nvme_free(phba);
11350         lpfc_free_iocb_list(phba);
11351
11352         lpfc_sli4_driver_resource_unset(phba);
11353
11354         /* Unmap adapter Control and Doorbell registers */
11355         lpfc_sli4_pci_mem_unset(phba);
11356
11357         /* Release PCI resources and disable device's PCI function */
11358         scsi_host_put(shost);
11359         lpfc_disable_pci_dev(phba);
11360
11361         /* Finally, free the driver's device data structure */
11362         lpfc_hba_free(phba);
11363
11364         return;
11365 }
11366
11367 /**
11368  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
11369  * @pdev: pointer to PCI device
11370  * @msg: power management message
11371  *
11372  * This routine is called from the kernel's PCI subsystem to support system
11373  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
11374  * this method, it quiesces the device by stopping the driver's worker
11375  * thread for the device, turning off device's interrupt and DMA, and bring
11376  * the device offline. Note that as the driver implements the minimum PM
11377  * requirements to a power-aware driver's PM support for suspend/resume -- all
11378  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
11379  * method call will be treated as SUSPEND and the driver will fully
11380  * reinitialize its device during resume() method call, the driver will set
11381  * device to PCI_D3hot state in PCI config space instead of setting it
11382  * according to the @msg provided by the PM.
11383  *
11384  * Return code
11385  *      0 - driver suspended the device
11386  *      Error otherwise
11387  **/
11388 static int
11389 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
11390 {
11391         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11392         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11393
11394         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11395                         "2843 PCI device Power Management suspend.\n");
11396
11397         /* Bring down the device */
11398         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11399         lpfc_offline(phba);
11400         kthread_stop(phba->worker_thread);
11401
11402         /* Disable interrupt from device */
11403         lpfc_sli4_disable_intr(phba);
11404         lpfc_sli4_queue_destroy(phba);
11405
11406         /* Save device state to PCI config space */
11407         pci_save_state(pdev);
11408         pci_set_power_state(pdev, PCI_D3hot);
11409
11410         return 0;
11411 }
11412
11413 /**
11414  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
11415  * @pdev: pointer to PCI device
11416  *
11417  * This routine is called from the kernel's PCI subsystem to support system
11418  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
11419  * this method, it restores the device's PCI config space state and fully
11420  * reinitializes the device and brings it online. Note that as the driver
11421  * implements the minimum PM requirements to a power-aware driver's PM for
11422  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11423  * to the suspend() method call will be treated as SUSPEND and the driver
11424  * will fully reinitialize its device during resume() method call, the device
11425  * will be set to PCI_D0 directly in PCI config space before restoring the
11426  * state.
11427  *
11428  * Return code
11429  *      0 - driver suspended the device
11430  *      Error otherwise
11431  **/
11432 static int
11433 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
11434 {
11435         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11436         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11437         uint32_t intr_mode;
11438         int error;
11439
11440         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11441                         "0292 PCI device Power Management resume.\n");
11442
11443         /* Restore device state from PCI config space */
11444         pci_set_power_state(pdev, PCI_D0);
11445         pci_restore_state(pdev);
11446
11447         /*
11448          * As the new kernel behavior of pci_restore_state() API call clears
11449          * device saved_state flag, need to save the restored state again.
11450          */
11451         pci_save_state(pdev);
11452
11453         if (pdev->is_busmaster)
11454                 pci_set_master(pdev);
11455
11456          /* Startup the kernel thread for this host adapter. */
11457         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11458                                         "lpfc_worker_%d", phba->brd_no);
11459         if (IS_ERR(phba->worker_thread)) {
11460                 error = PTR_ERR(phba->worker_thread);
11461                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11462                                 "0293 PM resume failed to start worker "
11463                                 "thread: error=x%x.\n", error);
11464                 return error;
11465         }
11466
11467         /* Configure and enable interrupt */
11468         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11469         if (intr_mode == LPFC_INTR_ERROR) {
11470                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11471                                 "0294 PM resume Failed to enable interrupt\n");
11472                 return -EIO;
11473         } else
11474                 phba->intr_mode = intr_mode;
11475
11476         /* Restart HBA and bring it online */
11477         lpfc_sli_brdrestart(phba);
11478         lpfc_online(phba);
11479
11480         /* Log the current active interrupt mode */
11481         lpfc_log_intr_mode(phba, phba->intr_mode);
11482
11483         return 0;
11484 }
11485
11486 /**
11487  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
11488  * @phba: pointer to lpfc hba data structure.
11489  *
11490  * This routine is called to prepare the SLI4 device for PCI slot recover. It
11491  * aborts all the outstanding SCSI I/Os to the pci device.
11492  **/
11493 static void
11494 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
11495 {
11496         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11497                         "2828 PCI channel I/O abort preparing for recovery\n");
11498         /*
11499          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11500          * and let the SCSI mid-layer to retry them to recover.
11501          */
11502         lpfc_sli_abort_fcp_rings(phba);
11503 }
11504
11505 /**
11506  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
11507  * @phba: pointer to lpfc hba data structure.
11508  *
11509  * This routine is called to prepare the SLI4 device for PCI slot reset. It
11510  * disables the device interrupt and pci device, and aborts the internal FCP
11511  * pending I/Os.
11512  **/
11513 static void
11514 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
11515 {
11516         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11517                         "2826 PCI channel disable preparing for reset\n");
11518
11519         /* Block any management I/Os to the device */
11520         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
11521
11522         /* Block all SCSI devices' I/Os on the host */
11523         lpfc_scsi_dev_block(phba);
11524
11525         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11526         lpfc_sli_flush_fcp_rings(phba);
11527
11528         /* stop all timers */
11529         lpfc_stop_hba_timers(phba);
11530
11531         /* Disable interrupt and pci device */
11532         lpfc_sli4_disable_intr(phba);
11533         lpfc_sli4_queue_destroy(phba);
11534         pci_disable_device(phba->pcidev);
11535 }
11536
11537 /**
11538  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
11539  * @phba: pointer to lpfc hba data structure.
11540  *
11541  * This routine is called to prepare the SLI4 device for PCI slot permanently
11542  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11543  * pending I/Os.
11544  **/
11545 static void
11546 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11547 {
11548         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11549                         "2827 PCI channel permanent disable for failure\n");
11550
11551         /* Block all SCSI devices' I/Os on the host */
11552         lpfc_scsi_dev_block(phba);
11553
11554         /* stop all timers */
11555         lpfc_stop_hba_timers(phba);
11556
11557         /* Clean up all driver's outstanding SCSI I/Os */
11558         lpfc_sli_flush_fcp_rings(phba);
11559 }
11560
11561 /**
11562  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
11563  * @pdev: pointer to PCI device.
11564  * @state: the current PCI connection state.
11565  *
11566  * This routine is called from the PCI subsystem for error handling to device
11567  * with SLI-4 interface spec. This function is called by the PCI subsystem
11568  * after a PCI bus error affecting this device has been detected. When this
11569  * function is invoked, it will need to stop all the I/Os and interrupt(s)
11570  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
11571  * for the PCI subsystem to perform proper recovery as desired.
11572  *
11573  * Return codes
11574  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11575  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11576  **/
11577 static pci_ers_result_t
11578 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
11579 {
11580         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11581         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11582
11583         switch (state) {
11584         case pci_channel_io_normal:
11585                 /* Non-fatal error, prepare for recovery */
11586                 lpfc_sli4_prep_dev_for_recover(phba);
11587                 return PCI_ERS_RESULT_CAN_RECOVER;
11588         case pci_channel_io_frozen:
11589                 /* Fatal error, prepare for slot reset */
11590                 lpfc_sli4_prep_dev_for_reset(phba);
11591                 return PCI_ERS_RESULT_NEED_RESET;
11592         case pci_channel_io_perm_failure:
11593                 /* Permanent failure, prepare for device down */
11594                 lpfc_sli4_prep_dev_for_perm_failure(phba);
11595                 return PCI_ERS_RESULT_DISCONNECT;
11596         default:
11597                 /* Unknown state, prepare and request slot reset */
11598                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11599                                 "2825 Unknown PCI error state: x%x\n", state);
11600                 lpfc_sli4_prep_dev_for_reset(phba);
11601                 return PCI_ERS_RESULT_NEED_RESET;
11602         }
11603 }
11604
11605 /**
11606  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
11607  * @pdev: pointer to PCI device.
11608  *
11609  * This routine is called from the PCI subsystem for error handling to device
11610  * with SLI-4 interface spec. It is called after PCI bus has been reset to
11611  * restart the PCI card from scratch, as if from a cold-boot. During the
11612  * PCI subsystem error recovery, after the driver returns
11613  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11614  * recovery and then call this routine before calling the .resume method to
11615  * recover the device. This function will initialize the HBA device, enable
11616  * the interrupt, but it will just put the HBA to offline state without
11617  * passing any I/O traffic.
11618  *
11619  * Return codes
11620  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11621  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11622  */
11623 static pci_ers_result_t
11624 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
11625 {
11626         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11627         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11628         struct lpfc_sli *psli = &phba->sli;
11629         uint32_t intr_mode;
11630
11631         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11632         if (pci_enable_device_mem(pdev)) {
11633                 printk(KERN_ERR "lpfc: Cannot re-enable "
11634                         "PCI device after reset.\n");
11635                 return PCI_ERS_RESULT_DISCONNECT;
11636         }
11637
11638         pci_restore_state(pdev);
11639
11640         /*
11641          * As the new kernel behavior of pci_restore_state() API call clears
11642          * device saved_state flag, need to save the restored state again.
11643          */
11644         pci_save_state(pdev);
11645
11646         if (pdev->is_busmaster)
11647                 pci_set_master(pdev);
11648
11649         spin_lock_irq(&phba->hbalock);
11650         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11651         spin_unlock_irq(&phba->hbalock);
11652
11653         /* Configure and enable interrupt */
11654         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11655         if (intr_mode == LPFC_INTR_ERROR) {
11656                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11657                                 "2824 Cannot re-enable interrupt after "
11658                                 "slot reset.\n");
11659                 return PCI_ERS_RESULT_DISCONNECT;
11660         } else
11661                 phba->intr_mode = intr_mode;
11662
11663         /* Log the current active interrupt mode */
11664         lpfc_log_intr_mode(phba, phba->intr_mode);
11665
11666         return PCI_ERS_RESULT_RECOVERED;
11667 }
11668
11669 /**
11670  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
11671  * @pdev: pointer to PCI device
11672  *
11673  * This routine is called from the PCI subsystem for error handling to device
11674  * with SLI-4 interface spec. It is called when kernel error recovery tells
11675  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11676  * error recovery. After this call, traffic can start to flow from this device
11677  * again.
11678  **/
11679 static void
11680 lpfc_io_resume_s4(struct pci_dev *pdev)
11681 {
11682         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11683         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11684
11685         /*
11686          * In case of slot reset, as function reset is performed through
11687          * mailbox command which needs DMA to be enabled, this operation
11688          * has to be moved to the io resume phase. Taking device offline
11689          * will perform the necessary cleanup.
11690          */
11691         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
11692                 /* Perform device reset */
11693                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11694                 lpfc_offline(phba);
11695                 lpfc_sli_brdrestart(phba);
11696                 /* Bring the device back online */
11697                 lpfc_online(phba);
11698         }
11699
11700         /* Clean up Advanced Error Reporting (AER) if needed */
11701         if (phba->hba_flag & HBA_AER_ENABLED)
11702                 pci_cleanup_aer_uncorrect_error_status(pdev);
11703 }
11704
11705 /**
11706  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
11707  * @pdev: pointer to PCI device
11708  * @pid: pointer to PCI device identifier
11709  *
11710  * This routine is to be registered to the kernel's PCI subsystem. When an
11711  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
11712  * at PCI device-specific information of the device and driver to see if the
11713  * driver state that it can support this kind of device. If the match is
11714  * successful, the driver core invokes this routine. This routine dispatches
11715  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
11716  * do all the initialization that it needs to do to handle the HBA device
11717  * properly.
11718  *
11719  * Return code
11720  *      0 - driver can claim the device
11721  *      negative value - driver can not claim the device
11722  **/
11723 static int
11724 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
11725 {
11726         int rc;
11727         struct lpfc_sli_intf intf;
11728
11729         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
11730                 return -ENODEV;
11731
11732         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
11733             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
11734                 rc = lpfc_pci_probe_one_s4(pdev, pid);
11735         else
11736                 rc = lpfc_pci_probe_one_s3(pdev, pid);
11737
11738         return rc;
11739 }
11740
11741 /**
11742  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
11743  * @pdev: pointer to PCI device
11744  *
11745  * This routine is to be registered to the kernel's PCI subsystem. When an
11746  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
11747  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
11748  * remove routine, which will perform all the necessary cleanup for the
11749  * device to be removed from the PCI subsystem properly.
11750  **/
11751 static void
11752 lpfc_pci_remove_one(struct pci_dev *pdev)
11753 {
11754         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11755         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11756
11757         switch (phba->pci_dev_grp) {
11758         case LPFC_PCI_DEV_LP:
11759                 lpfc_pci_remove_one_s3(pdev);
11760                 break;
11761         case LPFC_PCI_DEV_OC:
11762                 lpfc_pci_remove_one_s4(pdev);
11763                 break;
11764         default:
11765                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11766                                 "1424 Invalid PCI device group: 0x%x\n",
11767                                 phba->pci_dev_grp);
11768                 break;
11769         }
11770         return;
11771 }
11772
11773 /**
11774  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
11775  * @pdev: pointer to PCI device
11776  * @msg: power management message
11777  *
11778  * This routine is to be registered to the kernel's PCI subsystem to support
11779  * system Power Management (PM). When PM invokes this method, it dispatches
11780  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
11781  * suspend the device.
11782  *
11783  * Return code
11784  *      0 - driver suspended the device
11785  *      Error otherwise
11786  **/
11787 static int
11788 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
11789 {
11790         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11791         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11792         int rc = -ENODEV;
11793
11794         switch (phba->pci_dev_grp) {
11795         case LPFC_PCI_DEV_LP:
11796                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
11797                 break;
11798         case LPFC_PCI_DEV_OC:
11799                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
11800                 break;
11801         default:
11802                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11803                                 "1425 Invalid PCI device group: 0x%x\n",
11804                                 phba->pci_dev_grp);
11805                 break;
11806         }
11807         return rc;
11808 }
11809
11810 /**
11811  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
11812  * @pdev: pointer to PCI device
11813  *
11814  * This routine is to be registered to the kernel's PCI subsystem to support
11815  * system Power Management (PM). When PM invokes this method, it dispatches
11816  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
11817  * resume the device.
11818  *
11819  * Return code
11820  *      0 - driver suspended the device
11821  *      Error otherwise
11822  **/
11823 static int
11824 lpfc_pci_resume_one(struct pci_dev *pdev)
11825 {
11826         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11827         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11828         int rc = -ENODEV;
11829
11830         switch (phba->pci_dev_grp) {
11831         case LPFC_PCI_DEV_LP:
11832                 rc = lpfc_pci_resume_one_s3(pdev);
11833                 break;
11834         case LPFC_PCI_DEV_OC:
11835                 rc = lpfc_pci_resume_one_s4(pdev);
11836                 break;
11837         default:
11838                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11839                                 "1426 Invalid PCI device group: 0x%x\n",
11840                                 phba->pci_dev_grp);
11841                 break;
11842         }
11843         return rc;
11844 }
11845
11846 /**
11847  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11848  * @pdev: pointer to PCI device.
11849  * @state: the current PCI connection state.
11850  *
11851  * This routine is registered to the PCI subsystem for error handling. This
11852  * function is called by the PCI subsystem after a PCI bus error affecting
11853  * this device has been detected. When this routine is invoked, it dispatches
11854  * the action to the proper SLI-3 or SLI-4 device error detected handling
11855  * routine, which will perform the proper error detected operation.
11856  *
11857  * Return codes
11858  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11859  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11860  **/
11861 static pci_ers_result_t
11862 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11863 {
11864         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11865         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11866         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11867
11868         switch (phba->pci_dev_grp) {
11869         case LPFC_PCI_DEV_LP:
11870                 rc = lpfc_io_error_detected_s3(pdev, state);
11871                 break;
11872         case LPFC_PCI_DEV_OC:
11873                 rc = lpfc_io_error_detected_s4(pdev, state);
11874                 break;
11875         default:
11876                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11877                                 "1427 Invalid PCI device group: 0x%x\n",
11878                                 phba->pci_dev_grp);
11879                 break;
11880         }
11881         return rc;
11882 }
11883
11884 /**
11885  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11886  * @pdev: pointer to PCI device.
11887  *
11888  * This routine is registered to the PCI subsystem for error handling. This
11889  * function is called after PCI bus has been reset to restart the PCI card
11890  * from scratch, as if from a cold-boot. When this routine is invoked, it
11891  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11892  * routine, which will perform the proper device reset.
11893  *
11894  * Return codes
11895  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11896  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11897  **/
11898 static pci_ers_result_t
11899 lpfc_io_slot_reset(struct pci_dev *pdev)
11900 {
11901         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11902         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11903         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11904
11905         switch (phba->pci_dev_grp) {
11906         case LPFC_PCI_DEV_LP:
11907                 rc = lpfc_io_slot_reset_s3(pdev);
11908                 break;
11909         case LPFC_PCI_DEV_OC:
11910                 rc = lpfc_io_slot_reset_s4(pdev);
11911                 break;
11912         default:
11913                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11914                                 "1428 Invalid PCI device group: 0x%x\n",
11915                                 phba->pci_dev_grp);
11916                 break;
11917         }
11918         return rc;
11919 }
11920
11921 /**
11922  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11923  * @pdev: pointer to PCI device
11924  *
11925  * This routine is registered to the PCI subsystem for error handling. It
11926  * is called when kernel error recovery tells the lpfc driver that it is
11927  * OK to resume normal PCI operation after PCI bus error recovery. When
11928  * this routine is invoked, it dispatches the action to the proper SLI-3
11929  * or SLI-4 device io_resume routine, which will resume the device operation.
11930  **/
11931 static void
11932 lpfc_io_resume(struct pci_dev *pdev)
11933 {
11934         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11935         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11936
11937         switch (phba->pci_dev_grp) {
11938         case LPFC_PCI_DEV_LP:
11939                 lpfc_io_resume_s3(pdev);
11940                 break;
11941         case LPFC_PCI_DEV_OC:
11942                 lpfc_io_resume_s4(pdev);
11943                 break;
11944         default:
11945                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11946                                 "1429 Invalid PCI device group: 0x%x\n",
11947                                 phba->pci_dev_grp);
11948                 break;
11949         }
11950         return;
11951 }
11952
11953 /**
11954  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11955  * @phba: pointer to lpfc hba data structure.
11956  *
11957  * This routine checks to see if OAS is supported for this adapter. If
11958  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
11959  * the enable oas flag is cleared and the pool created for OAS device data
11960  * is destroyed.
11961  *
11962  **/
11963 void
11964 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11965 {
11966
11967         if (!phba->cfg_EnableXLane)
11968                 return;
11969
11970         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11971                 phba->cfg_fof = 1;
11972         } else {
11973                 phba->cfg_fof = 0;
11974                 if (phba->device_data_mem_pool)
11975                         mempool_destroy(phba->device_data_mem_pool);
11976                 phba->device_data_mem_pool = NULL;
11977         }
11978
11979         return;
11980 }
11981
11982 /**
11983  * lpfc_fof_queue_setup - Set up all the fof queues
11984  * @phba: pointer to lpfc hba data structure.
11985  *
11986  * This routine is invoked to set up all the fof queues for the FC HBA
11987  * operation.
11988  *
11989  * Return codes
11990  *      0 - successful
11991  *      -ENOMEM - No available memory
11992  **/
11993 int
11994 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11995 {
11996         struct lpfc_sli_ring *pring;
11997         int rc;
11998
11999         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
12000         if (rc)
12001                 return -ENOMEM;
12002
12003         if (phba->cfg_fof) {
12004
12005                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
12006                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
12007                 if (rc)
12008                         goto out_oas_cq;
12009
12010                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
12011                                     phba->sli4_hba.oas_cq, LPFC_FCP);
12012                 if (rc)
12013                         goto out_oas_wq;
12014
12015                 /* Bind this CQ/WQ to the NVME ring */
12016                 pring = phba->sli4_hba.oas_wq->pring;
12017                 pring->sli.sli4.wqp =
12018                         (void *)phba->sli4_hba.oas_wq;
12019                 phba->sli4_hba.oas_cq->pring = pring;
12020         }
12021
12022         return 0;
12023
12024 out_oas_wq:
12025         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
12026 out_oas_cq:
12027         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
12028         return rc;
12029
12030 }
12031
12032 /**
12033  * lpfc_fof_queue_create - Create all the fof queues
12034  * @phba: pointer to lpfc hba data structure.
12035  *
12036  * This routine is invoked to allocate all the fof queues for the FC HBA
12037  * operation. For each SLI4 queue type, the parameters such as queue entry
12038  * count (queue depth) shall be taken from the module parameter. For now,
12039  * we just use some constant number as place holder.
12040  *
12041  * Return codes
12042  *      0 - successful
12043  *      -ENOMEM - No availble memory
12044  *      -EIO - The mailbox failed to complete successfully.
12045  **/
12046 int
12047 lpfc_fof_queue_create(struct lpfc_hba *phba)
12048 {
12049         struct lpfc_queue *qdesc;
12050         uint32_t wqesize;
12051
12052         /* Create FOF EQ */
12053         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
12054                                       phba->sli4_hba.eq_ecount);
12055         if (!qdesc)
12056                 goto out_error;
12057
12058         phba->sli4_hba.fof_eq = qdesc;
12059
12060         if (phba->cfg_fof) {
12061
12062                 /* Create OAS CQ */
12063                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
12064                                                       phba->sli4_hba.cq_ecount);
12065                 if (!qdesc)
12066                         goto out_error;
12067
12068                 phba->sli4_hba.oas_cq = qdesc;
12069
12070                 /* Create OAS WQ */
12071                 wqesize = (phba->fcp_embed_io) ?
12072                                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12073                 qdesc = lpfc_sli4_queue_alloc(phba, wqesize,
12074                                               phba->sli4_hba.wq_ecount);
12075
12076                 if (!qdesc)
12077                         goto out_error;
12078
12079                 phba->sli4_hba.oas_wq = qdesc;
12080                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12081
12082         }
12083         return 0;
12084
12085 out_error:
12086         lpfc_fof_queue_destroy(phba);
12087         return -ENOMEM;
12088 }
12089
12090 /**
12091  * lpfc_fof_queue_destroy - Destroy all the fof queues
12092  * @phba: pointer to lpfc hba data structure.
12093  *
12094  * This routine is invoked to release all the SLI4 queues with the FC HBA
12095  * operation.
12096  *
12097  * Return codes
12098  *      0 - successful
12099  **/
12100 int
12101 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12102 {
12103         /* Release FOF Event queue */
12104         if (phba->sli4_hba.fof_eq != NULL) {
12105                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12106                 phba->sli4_hba.fof_eq = NULL;
12107         }
12108
12109         /* Release OAS Completion queue */
12110         if (phba->sli4_hba.oas_cq != NULL) {
12111                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12112                 phba->sli4_hba.oas_cq = NULL;
12113         }
12114
12115         /* Release OAS Work queue */
12116         if (phba->sli4_hba.oas_wq != NULL) {
12117                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12118                 phba->sli4_hba.oas_wq = NULL;
12119         }
12120         return 0;
12121 }
12122
12123 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12124
12125 static const struct pci_error_handlers lpfc_err_handler = {
12126         .error_detected = lpfc_io_error_detected,
12127         .slot_reset = lpfc_io_slot_reset,
12128         .resume = lpfc_io_resume,
12129 };
12130
12131 static struct pci_driver lpfc_driver = {
12132         .name           = LPFC_DRIVER_NAME,
12133         .id_table       = lpfc_id_table,
12134         .probe          = lpfc_pci_probe_one,
12135         .remove         = lpfc_pci_remove_one,
12136         .shutdown       = lpfc_pci_remove_one,
12137         .suspend        = lpfc_pci_suspend_one,
12138         .resume         = lpfc_pci_resume_one,
12139         .err_handler    = &lpfc_err_handler,
12140 };
12141
12142 static const struct file_operations lpfc_mgmt_fop = {
12143         .owner = THIS_MODULE,
12144 };
12145
12146 static struct miscdevice lpfc_mgmt_dev = {
12147         .minor = MISC_DYNAMIC_MINOR,
12148         .name = "lpfcmgmt",
12149         .fops = &lpfc_mgmt_fop,
12150 };
12151
12152 /**
12153  * lpfc_init - lpfc module initialization routine
12154  *
12155  * This routine is to be invoked when the lpfc module is loaded into the
12156  * kernel. The special kernel macro module_init() is used to indicate the
12157  * role of this routine to the kernel as lpfc module entry point.
12158  *
12159  * Return codes
12160  *   0 - successful
12161  *   -ENOMEM - FC attach transport failed
12162  *   all others - failed
12163  */
12164 static int __init
12165 lpfc_init(void)
12166 {
12167         int error = 0;
12168
12169         printk(LPFC_MODULE_DESC "\n");
12170         printk(LPFC_COPYRIGHT "\n");
12171
12172         error = misc_register(&lpfc_mgmt_dev);
12173         if (error)
12174                 printk(KERN_ERR "Could not register lpfcmgmt device, "
12175                         "misc_register returned with status %d", error);
12176
12177         lpfc_transport_functions.vport_create = lpfc_vport_create;
12178         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12179         lpfc_transport_template =
12180                                 fc_attach_transport(&lpfc_transport_functions);
12181         if (lpfc_transport_template == NULL)
12182                 return -ENOMEM;
12183         lpfc_vport_transport_template =
12184                 fc_attach_transport(&lpfc_vport_transport_functions);
12185         if (lpfc_vport_transport_template == NULL) {
12186                 fc_release_transport(lpfc_transport_template);
12187                 return -ENOMEM;
12188         }
12189
12190         /* Initialize in case vector mapping is needed */
12191         lpfc_used_cpu = NULL;
12192         lpfc_present_cpu = num_present_cpus();
12193
12194         error = pci_register_driver(&lpfc_driver);
12195         if (error) {
12196                 fc_release_transport(lpfc_transport_template);
12197                 fc_release_transport(lpfc_vport_transport_template);
12198         }
12199
12200         return error;
12201 }
12202
12203 /**
12204  * lpfc_exit - lpfc module removal routine
12205  *
12206  * This routine is invoked when the lpfc module is removed from the kernel.
12207  * The special kernel macro module_exit() is used to indicate the role of
12208  * this routine to the kernel as lpfc module exit point.
12209  */
12210 static void __exit
12211 lpfc_exit(void)
12212 {
12213         misc_deregister(&lpfc_mgmt_dev);
12214         pci_unregister_driver(&lpfc_driver);
12215         fc_release_transport(lpfc_transport_template);
12216         fc_release_transport(lpfc_vport_transport_template);
12217         if (_dump_buf_data) {
12218                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
12219                                 "_dump_buf_data at 0x%p\n",
12220                                 (1L << _dump_buf_data_order), _dump_buf_data);
12221                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12222         }
12223
12224         if (_dump_buf_dif) {
12225                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
12226                                 "_dump_buf_dif at 0x%p\n",
12227                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
12228                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12229         }
12230         kfree(lpfc_used_cpu);
12231         idr_destroy(&lpfc_hba_index);
12232 }
12233
12234 module_init(lpfc_init);
12235 module_exit(lpfc_exit);
12236 MODULE_LICENSE("GPL");
12237 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12238 MODULE_AUTHOR("Broadcom");
12239 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);