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 #include <linux/bitops.h>
  41
  42 #include <scsi/scsi.h>
  43 #include <scsi/scsi_device.h>
  44 #include <scsi/scsi_host.h>
  45 #include <scsi/scsi_transport_fc.h>
  46 #include <scsi/scsi_tcq.h>
  47 #include <scsi/fc/fc_fs.h>
  48
  49 #include <linux/nvme-fc-driver.h>
  50
  51 #include "lpfc_hw4.h"
  52 #include "lpfc_hw.h"
  53 #include "lpfc_sli.h"
  54 #include "lpfc_sli4.h"
  55 #include "lpfc_nl.h"
  56 #include "lpfc_disc.h"
  57 #include "lpfc.h"
  58 #include "lpfc_scsi.h"
  59 #include "lpfc_nvme.h"
  60 #include "lpfc_nvmet.h"
  61 #include "lpfc_logmsg.h"
  62 #include "lpfc_crtn.h"
  63 #include "lpfc_vport.h"
  64 #include "lpfc_version.h"
  65 #include "lpfc_ids.h"
  66
  67 char *_dump_buf_data;
  68 unsigned long _dump_buf_data_order;
  69 char *_dump_buf_dif;
  70 unsigned long _dump_buf_dif_order;
  71 spinlock_t _dump_buf_lock;
  72
  73 /* Used when mapping IRQ vectors in a driver centric manner */
  74 uint16_t *lpfc_used_cpu;
  75 uint32_t lpfc_present_cpu;
  76
  77 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  78 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  79 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  80 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  81 static int lpfc_setup_endian_order(struct lpfc_hba *);
  82 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  83 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  84 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  85 static void lpfc_init_sgl_list(struct lpfc_hba *);
  86 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  87 static void lpfc_free_active_sgl(struct lpfc_hba *);
  88 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  89 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  90 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  92 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  93 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  94 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  95 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  96
  97 static struct scsi_transport_template *lpfc_transport_template = NULL;
  98 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  99 static DEFINE_IDR(lpfc_hba_index);
 100 #define LPFC_NVMET_BUF_POST 254
 101
 102 /**
 103  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 104  * @phba: pointer to lpfc hba data structure.
 105  *
 106  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 107  * mailbox command. It retrieves the revision information from the HBA and
 108  * collects the Vital Product Data (VPD) about the HBA for preparing the
 109  * configuration of the HBA.
 110  *
 111  * Return codes:
 112  *   0 - success.
 113  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 114  *   Any other value - indicates an error.
 115  **/
 116 int
 117 lpfc_config_port_prep(struct lpfc_hba *phba)
 118 {
 119         lpfc_vpd_t *vp = &phba->vpd;
 120         int i = 0, rc;
 121         LPFC_MBOXQ_t *pmb;
 122         MAILBOX_t *mb;
 123         char *lpfc_vpd_data = NULL;
 124         uint16_t offset = 0;
 125         static char licensed[56] =
 126                     "key unlock for use with gnu public licensed code only\0";
 127         static int init_key = 1;
 128
 129         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 130         if (!pmb) {
 131                 phba->link_state = LPFC_HBA_ERROR;
 132                 return -ENOMEM;
 133         }
 134
 135         mb = &pmb->u.mb;
 136         phba->link_state = LPFC_INIT_MBX_CMDS;
 137
 138         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 139                 if (init_key) {
 140                         uint32_t *ptext = (uint32_t *) licensed;
 141
 142                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 143                                 *ptext = cpu_to_be32(*ptext);
 144                         init_key = 0;
 145                 }
 146
 147                 lpfc_read_nv(phba, pmb);
 148                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 149                         sizeof (mb->un.varRDnvp.rsvd3));
 150                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 151                          sizeof (licensed));
 152
 153                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 154
 155                 if (rc != MBX_SUCCESS) {
 156                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 157                                         "0324 Config Port initialization "
 158                                         "error, mbxCmd x%x READ_NVPARM, "
 159                                         "mbxStatus x%x\n",
 160                                         mb->mbxCommand, mb->mbxStatus);
 161                         mempool_free(pmb, phba->mbox_mem_pool);
 162                         return -ERESTART;
 163                 }
 164                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 165                        sizeof(phba->wwnn));
 166                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 167                        sizeof(phba->wwpn));
 168         }
 169
 170         phba->sli3_options = 0x0;
 171
 172         /* Setup and issue mailbox READ REV command */
 173         lpfc_read_rev(phba, pmb);
 174         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 175         if (rc != MBX_SUCCESS) {
 176                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 177                                 "0439 Adapter failed to init, mbxCmd x%x "
 178                                 "READ_REV, mbxStatus x%x\n",
 179                                 mb->mbxCommand, mb->mbxStatus);
 180                 mempool_free( pmb, phba->mbox_mem_pool);
 181                 return -ERESTART;
 182         }
 183
 184
 185         /*
 186          * The value of rr must be 1 since the driver set the cv field to 1.
 187          * This setting requires the FW to set all revision fields.
 188          */
 189         if (mb->un.varRdRev.rr == 0) {
 190                 vp->rev.rBit = 0;
 191                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 192                                 "0440 Adapter failed to init, READ_REV has "
 193                                 "missing revision information.\n");
 194                 mempool_free(pmb, phba->mbox_mem_pool);
 195                 return -ERESTART;
 196         }
 197
 198         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 199                 mempool_free(pmb, phba->mbox_mem_pool);
 200                 return -EINVAL;
 201         }
 202
 203         /* Save information as VPD data */
 204         vp->rev.rBit = 1;
 205         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 206         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 207         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 208         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 209         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 210         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 211         vp->rev.smRev = mb->un.varRdRev.smRev;
 212         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 213         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 214         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 215         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 216         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 217         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 218         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 219         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 220
 221         /* If the sli feature level is less then 9, we must
 222          * tear down all RPIs and VPIs on link down if NPIV
 223          * is enabled.
 224          */
 225         if (vp->rev.feaLevelHigh < 9)
 226                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 227
 228         if (lpfc_is_LC_HBA(phba->pcidev->device))
 229                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 230                                                 sizeof (phba->RandomData));
 231
 232         /* Get adapter VPD information */
 233         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 234         if (!lpfc_vpd_data)
 235                 goto out_free_mbox;
 236         do {
 237                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 238                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 239
 240                 if (rc != MBX_SUCCESS) {
 241                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 242                                         "0441 VPD not present on adapter, "
 243                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 244                                         mb->mbxCommand, mb->mbxStatus);
 245                         mb->un.varDmp.word_cnt = 0;
 246                 }
 247                 /* dump mem may return a zero when finished or we got a
 248                  * mailbox error, either way we are done.
 249                  */
 250                 if (mb->un.varDmp.word_cnt == 0)
 251                         break;
 252                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 253                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 254                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 255                                       lpfc_vpd_data + offset,
 256                                       mb->un.varDmp.word_cnt);
 257                 offset += mb->un.varDmp.word_cnt;
 258         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 259         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 260
 261         kfree(lpfc_vpd_data);
 262 out_free_mbox:
 263         mempool_free(pmb, phba->mbox_mem_pool);
 264         return 0;
 265 }
 266
 267 /**
 268  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 269  * @phba: pointer to lpfc hba data structure.
 270  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 271  *
 272  * This is the completion handler for driver's configuring asynchronous event
 273  * mailbox command to the device. If the mailbox command returns successfully,
 274  * it will set internal async event support flag to 1; otherwise, it will
 275  * set internal async event support flag to 0.
 276  **/
 277 static void
 278 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 279 {
 280         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 281                 phba->temp_sensor_support = 1;
 282         else
 283                 phba->temp_sensor_support = 0;
 284         mempool_free(pmboxq, phba->mbox_mem_pool);
 285         return;
 286 }
 287
 288 /**
 289  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 290  * @phba: pointer to lpfc hba data structure.
 291  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 292  *
 293  * This is the completion handler for dump mailbox command for getting
 294  * wake up parameters. When this command complete, the response contain
 295  * Option rom version of the HBA. This function translate the version number
 296  * into a human readable string and store it in OptionROMVersion.
 297  **/
 298 static void
 299 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 300 {
 301         struct prog_id *prg;
 302         uint32_t prog_id_word;
 303         char dist = ' ';
 304         /* character array used for decoding dist type. */
 305         char dist_char[] = "nabx";
 306
 307         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 308                 mempool_free(pmboxq, phba->mbox_mem_pool);
 309                 return;
 310         }
 311
 312         prg = (struct prog_id *) &prog_id_word;
 313
 314         /* word 7 contain option rom version */
 315         prog_id_word = pmboxq->u.mb.un.varWords[7];
 316
 317         /* Decode the Option rom version word to a readable string */
 318         if (prg->dist < 4)
 319                 dist = dist_char[prg->dist];
 320
 321         if ((prg->dist == 3) && (prg->num == 0))
 322                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 323                         prg->ver, prg->rev, prg->lev);
 324         else
 325                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 326                         prg->ver, prg->rev, prg->lev,
 327                         dist, prg->num);
 328         mempool_free(pmboxq, phba->mbox_mem_pool);
 329         return;
 330 }
 331
 332 /**
 333  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 334  *      cfg_soft_wwnn, cfg_soft_wwpn
 335  * @vport: pointer to lpfc vport data structure.
 336  *
 337  *
 338  * Return codes
 339  *   None.
 340  **/
 341 void
 342 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 343 {
 344         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 345         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 346
 347         /* If the soft name exists then update it using the service params */
 348         if (vport->phba->cfg_soft_wwnn)
 349                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 350                            vport->fc_sparam.nodeName.u.wwn);
 351         if (vport->phba->cfg_soft_wwpn)
 352                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 353                            vport->fc_sparam.portName.u.wwn);
 354
 355         /*
 356          * If the name is empty or there exists a soft name
 357          * then copy the service params name, otherwise use the fc name
 358          */
 359         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 360                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 361                         sizeof(struct lpfc_name));
 362         else
 363                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 364                         sizeof(struct lpfc_name));
 365
 366         /*
 367          * If the port name has changed, then set the Param changes flag
 368          * to unreg the login
 369          */
 370         if (vport->fc_portname.u.wwn[0] != 0 &&
 371                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 372                         sizeof(struct lpfc_name)))
 373                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 374
 375         if (vport->fc_portname.u.wwn[0] == 0 ||
 376             vport->phba->cfg_soft_wwpn ||
 377             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 378             vport->vport_flag & FAWWPN_SET) {
 379                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 380                         sizeof(struct lpfc_name));
 381                 vport->vport_flag &= ~FAWWPN_SET;
 382                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 383                         vport->vport_flag |= FAWWPN_SET;
 384         }
 385         else
 386                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 387                         sizeof(struct lpfc_name));
 388 }
 389
 390 /**
 391  * lpfc_config_port_post - Perform lpfc initialization after config port
 392  * @phba: pointer to lpfc hba data structure.
 393  *
 394  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 395  * command call. It performs all internal resource and state setups on the
 396  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 397  * ELS ring timers, etc.
 398  *
 399  * Return codes
 400  *   0 - success.
 401  *   Any other value - error.
 402  **/
 403 int
 404 lpfc_config_port_post(struct lpfc_hba *phba)
 405 {
 406         struct lpfc_vport *vport = phba->pport;
 407         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 408         LPFC_MBOXQ_t *pmb;
 409         MAILBOX_t *mb;
 410         struct lpfc_dmabuf *mp;
 411         struct lpfc_sli *psli = &phba->sli;
 412         uint32_t status, timeout;
 413         int i, j;
 414         int rc;
 415
 416         spin_lock_irq(&phba->hbalock);
 417         /*
 418          * If the Config port completed correctly the HBA is not
 419          * over heated any more.
 420          */
 421         if (phba->over_temp_state == HBA_OVER_TEMP)
 422                 phba->over_temp_state = HBA_NORMAL_TEMP;
 423         spin_unlock_irq(&phba->hbalock);
 424
 425         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 426         if (!pmb) {
 427                 phba->link_state = LPFC_HBA_ERROR;
 428                 return -ENOMEM;
 429         }
 430         mb = &pmb->u.mb;
 431
 432         /* Get login parameters for NID.  */
 433         rc = lpfc_read_sparam(phba, pmb, 0);
 434         if (rc) {
 435                 mempool_free(pmb, phba->mbox_mem_pool);
 436                 return -ENOMEM;
 437         }
 438
 439         pmb->vport = vport;
 440         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 441                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 442                                 "0448 Adapter failed init, mbxCmd x%x "
 443                                 "READ_SPARM mbxStatus x%x\n",
 444                                 mb->mbxCommand, mb->mbxStatus);
 445                 phba->link_state = LPFC_HBA_ERROR;
 446                 mp = (struct lpfc_dmabuf *) pmb->context1;
 447                 mempool_free(pmb, phba->mbox_mem_pool);
 448                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 449                 kfree(mp);
 450                 return -EIO;
 451         }
 452
 453         mp = (struct lpfc_dmabuf *) pmb->context1;
 454
 455         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 456         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 457         kfree(mp);
 458         pmb->context1 = NULL;
 459         lpfc_update_vport_wwn(vport);
 460
 461         /* Update the fc_host data structures with new wwn. */
 462         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 463         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 464         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 465
 466         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 467         /* This should be consolidated into parse_vpd ? - mr */
 468         if (phba->SerialNumber[0] == 0) {
 469                 uint8_t *outptr;
 470
 471                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 472                 for (i = 0; i < 12; i++) {
 473                         status = *outptr++;
 474                         j = ((status & 0xf0) >> 4);
 475                         if (j <= 9)
 476                                 phba->SerialNumber[i] =
 477                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 478                         else
 479                                 phba->SerialNumber[i] =
 480                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 481                         i++;
 482                         j = (status & 0xf);
 483                         if (j <= 9)
 484                                 phba->SerialNumber[i] =
 485                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 486                         else
 487                                 phba->SerialNumber[i] =
 488                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 489                 }
 490         }
 491
 492         lpfc_read_config(phba, pmb);
 493         pmb->vport = vport;
 494         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 495                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 496                                 "0453 Adapter failed to init, mbxCmd x%x "
 497                                 "READ_CONFIG, mbxStatus x%x\n",
 498                                 mb->mbxCommand, mb->mbxStatus);
 499                 phba->link_state = LPFC_HBA_ERROR;
 500                 mempool_free( pmb, phba->mbox_mem_pool);
 501                 return -EIO;
 502         }
 503
 504         /* Check if the port is disabled */
 505         lpfc_sli_read_link_ste(phba);
 506
 507         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 508         i = (mb->un.varRdConfig.max_xri + 1);
 509         if (phba->cfg_hba_queue_depth > i) {
 510                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 511                                 "3359 HBA queue depth changed from %d to %d\n",
 512                                 phba->cfg_hba_queue_depth, i);
 513                 phba->cfg_hba_queue_depth = i;
 514         }
 515
 516         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 517         i = (mb->un.varRdConfig.max_xri >> 3);
 518         if (phba->pport->cfg_lun_queue_depth > i) {
 519                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 520                                 "3360 LUN queue depth changed from %d to %d\n",
 521                                 phba->pport->cfg_lun_queue_depth, i);
 522                 phba->pport->cfg_lun_queue_depth = i;
 523         }
 524
 525         phba->lmt = mb->un.varRdConfig.lmt;
 526
 527         /* Get the default values for Model Name and Description */
 528         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 529
 530         phba->link_state = LPFC_LINK_DOWN;
 531
 532         /* Only process IOCBs on ELS ring till hba_state is READY */
 533         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 534                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 535         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 536                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 537
 538         /* Post receive buffers for desired rings */
 539         if (phba->sli_rev != 3)
 540                 lpfc_post_rcv_buf(phba);
 541
 542         /*
 543          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 544          */
 545         if (phba->intr_type == MSIX) {
 546                 rc = lpfc_config_msi(phba, pmb);
 547                 if (rc) {
 548                         mempool_free(pmb, phba->mbox_mem_pool);
 549                         return -EIO;
 550                 }
 551                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 552                 if (rc != MBX_SUCCESS) {
 553                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 554                                         "0352 Config MSI mailbox command "
 555                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 556                                         pmb->u.mb.mbxCommand,
 557                                         pmb->u.mb.mbxStatus);
 558                         mempool_free(pmb, phba->mbox_mem_pool);
 559                         return -EIO;
 560                 }
 561         }
 562
 563         spin_lock_irq(&phba->hbalock);
 564         /* Initialize ERATT handling flag */
 565         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 566
 567         /* Enable appropriate host interrupts */
 568         if (lpfc_readl(phba->HCregaddr, &status)) {
 569                 spin_unlock_irq(&phba->hbalock);
 570                 return -EIO;
 571         }
 572         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 573         if (psli->num_rings > 0)
 574                 status |= HC_R0INT_ENA;
 575         if (psli->num_rings > 1)
 576                 status |= HC_R1INT_ENA;
 577         if (psli->num_rings > 2)
 578                 status |= HC_R2INT_ENA;
 579         if (psli->num_rings > 3)
 580                 status |= HC_R3INT_ENA;
 581
 582         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 583             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 584                 status &= ~(HC_R0INT_ENA);
 585
 586         writel(status, phba->HCregaddr);
 587         readl(phba->HCregaddr); /* flush */
 588         spin_unlock_irq(&phba->hbalock);
 589
 590         /* Set up ring-0 (ELS) timer */
 591         timeout = phba->fc_ratov * 2;
 592         mod_timer(&vport->els_tmofunc,
 593                   jiffies + msecs_to_jiffies(1000 * timeout));
 594         /* Set up heart beat (HB) timer */
 595         mod_timer(&phba->hb_tmofunc,
 596                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 597         phba->hb_outstanding = 0;
 598         phba->last_completion_time = jiffies;
 599         /* Set up error attention (ERATT) polling timer */
 600         mod_timer(&phba->eratt_poll,
 601                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 602
 603         if (phba->hba_flag & LINK_DISABLED) {
 604                 lpfc_printf_log(phba,
 605                         KERN_ERR, LOG_INIT,
 606                         "2598 Adapter Link is disabled.\n");
 607                 lpfc_down_link(phba, pmb);
 608                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 609                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 610                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 611                         lpfc_printf_log(phba,
 612                         KERN_ERR, LOG_INIT,
 613                         "2599 Adapter failed to issue DOWN_LINK"
 614                         " mbox command rc 0x%x\n", rc);
 615
 616                         mempool_free(pmb, phba->mbox_mem_pool);
 617                         return -EIO;
 618                 }
 619         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 620                 mempool_free(pmb, phba->mbox_mem_pool);
 621                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 622                 if (rc)
 623                         return rc;
 624         }
 625         /* MBOX buffer will be freed in mbox compl */
 626         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 627         if (!pmb) {
 628                 phba->link_state = LPFC_HBA_ERROR;
 629                 return -ENOMEM;
 630         }
 631
 632         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 633         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 634         pmb->vport = phba->pport;
 635         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 636
 637         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 638                 lpfc_printf_log(phba,
 639                                 KERN_ERR,
 640                                 LOG_INIT,
 641                                 "0456 Adapter failed to issue "
 642                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 643                                 rc);
 644                 mempool_free(pmb, phba->mbox_mem_pool);
 645         }
 646
 647         /* Get Option rom version */
 648         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 649         if (!pmb) {
 650                 phba->link_state = LPFC_HBA_ERROR;
 651                 return -ENOMEM;
 652         }
 653
 654         lpfc_dump_wakeup_param(phba, pmb);
 655         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 656         pmb->vport = phba->pport;
 657         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 658
 659         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 660                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 661                                 "to get Option ROM version status x%x\n", rc);
 662                 mempool_free(pmb, phba->mbox_mem_pool);
 663         }
 664
 665         return 0;
 666 }
 667
 668 /**
 669  * lpfc_hba_init_link - Initialize the FC link
 670  * @phba: pointer to lpfc hba data structure.
 671  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 672  *
 673  * This routine will issue the INIT_LINK mailbox command call.
 674  * It is available to other drivers through the lpfc_hba data
 675  * structure for use as a delayed link up mechanism with the
 676  * module parameter lpfc_suppress_link_up.
 677  *
 678  * Return code
 679  *              0 - success
 680  *              Any other value - error
 681  **/
 682 static int
 683 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 684 {
 685         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 686 }
 687
 688 /**
 689  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 690  * @phba: pointer to lpfc hba data structure.
 691  * @fc_topology: desired fc topology.
 692  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 693  *
 694  * This routine will issue the INIT_LINK mailbox command call.
 695  * It is available to other drivers through the lpfc_hba data
 696  * structure for use as a delayed link up mechanism with the
 697  * module parameter lpfc_suppress_link_up.
 698  *
 699  * Return code
 700  *              0 - success
 701  *              Any other value - error
 702  **/
 703 int
 704 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 705                                uint32_t flag)
 706 {
 707         struct lpfc_vport *vport = phba->pport;
 708         LPFC_MBOXQ_t *pmb;
 709         MAILBOX_t *mb;
 710         int rc;
 711
 712         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 713         if (!pmb) {
 714                 phba->link_state = LPFC_HBA_ERROR;
 715                 return -ENOMEM;
 716         }
 717         mb = &pmb->u.mb;
 718         pmb->vport = vport;
 719
 720         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 721             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 722              !(phba->lmt & LMT_1Gb)) ||
 723             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 724              !(phba->lmt & LMT_2Gb)) ||
 725             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 726              !(phba->lmt & LMT_4Gb)) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 728              !(phba->lmt & LMT_8Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 730              !(phba->lmt & LMT_10Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 732              !(phba->lmt & LMT_16Gb)) ||
 733             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 734              !(phba->lmt & LMT_32Gb))) {
 735                 /* Reset link speed to auto */
 736                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 737                         "1302 Invalid speed for this board:%d "
 738                         "Reset link speed to auto.\n",
 739                         phba->cfg_link_speed);
 740                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 741         }
 742         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 743         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 744         if (phba->sli_rev < LPFC_SLI_REV4)
 745                 lpfc_set_loopback_flag(phba);
 746         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 747         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 748                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 749                         "0498 Adapter failed to init, mbxCmd x%x "
 750                         "INIT_LINK, mbxStatus x%x\n",
 751                         mb->mbxCommand, mb->mbxStatus);
 752                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 753                         /* Clear all interrupt enable conditions */
 754                         writel(0, phba->HCregaddr);
 755                         readl(phba->HCregaddr); /* flush */
 756                         /* Clear all pending interrupts */
 757                         writel(0xffffffff, phba->HAregaddr);
 758                         readl(phba->HAregaddr); /* flush */
 759                 }
 760                 phba->link_state = LPFC_HBA_ERROR;
 761                 if (rc != MBX_BUSY || flag == MBX_POLL)
 762                         mempool_free(pmb, phba->mbox_mem_pool);
 763                 return -EIO;
 764         }
 765         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 766         if (flag == MBX_POLL)
 767                 mempool_free(pmb, phba->mbox_mem_pool);
 768
 769         return 0;
 770 }
 771
 772 /**
 773  * lpfc_hba_down_link - this routine downs the FC link
 774  * @phba: pointer to lpfc hba data structure.
 775  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 776  *
 777  * This routine will issue the DOWN_LINK mailbox command call.
 778  * It is available to other drivers through the lpfc_hba data
 779  * structure for use to stop the link.
 780  *
 781  * Return code
 782  *              0 - success
 783  *              Any other value - error
 784  **/
 785 static int
 786 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 787 {
 788         LPFC_MBOXQ_t *pmb;
 789         int rc;
 790
 791         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 792         if (!pmb) {
 793                 phba->link_state = LPFC_HBA_ERROR;
 794                 return -ENOMEM;
 795         }
 796
 797         lpfc_printf_log(phba,
 798                 KERN_ERR, LOG_INIT,
 799                 "0491 Adapter Link is disabled.\n");
 800         lpfc_down_link(phba, pmb);
 801         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 802         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 803         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 804                 lpfc_printf_log(phba,
 805                 KERN_ERR, LOG_INIT,
 806                 "2522 Adapter failed to issue DOWN_LINK"
 807                 " mbox command rc 0x%x\n", rc);
 808
 809                 mempool_free(pmb, phba->mbox_mem_pool);
 810                 return -EIO;
 811         }
 812         if (flag == MBX_POLL)
 813                 mempool_free(pmb, phba->mbox_mem_pool);
 814
 815         return 0;
 816 }
 817
 818 /**
 819  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 820  * @phba: pointer to lpfc HBA data structure.
 821  *
 822  * This routine will do LPFC uninitialization before the HBA is reset when
 823  * bringing down the SLI Layer.
 824  *
 825  * Return codes
 826  *   0 - success.
 827  *   Any other value - error.
 828  **/
 829 int
 830 lpfc_hba_down_prep(struct lpfc_hba *phba)
 831 {
 832         struct lpfc_vport **vports;
 833         int i;
 834
 835         if (phba->sli_rev <= LPFC_SLI_REV3) {
 836                 /* Disable interrupts */
 837                 writel(0, phba->HCregaddr);
 838                 readl(phba->HCregaddr); /* flush */
 839         }
 840
 841         if (phba->pport->load_flag & FC_UNLOADING)
 842                 lpfc_cleanup_discovery_resources(phba->pport);
 843         else {
 844                 vports = lpfc_create_vport_work_array(phba);
 845                 if (vports != NULL)
 846                         for (i = 0; i <= phba->max_vports &&
 847                                 vports[i] != NULL; i++)
 848                                 lpfc_cleanup_discovery_resources(vports[i]);
 849                 lpfc_destroy_vport_work_array(phba, vports);
 850         }
 851         return 0;
 852 }
 853
 854 /**
 855  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 856  * rspiocb which got deferred
 857  *
 858  * @phba: pointer to lpfc HBA data structure.
 859  *
 860  * This routine will cleanup completed slow path events after HBA is reset
 861  * when bringing down the SLI Layer.
 862  *
 863  *
 864  * Return codes
 865  *   void.
 866  **/
 867 static void
 868 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 869 {
 870         struct lpfc_iocbq *rspiocbq;
 871         struct hbq_dmabuf *dmabuf;
 872         struct lpfc_cq_event *cq_event;
 873
 874         spin_lock_irq(&phba->hbalock);
 875         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 876         spin_unlock_irq(&phba->hbalock);
 877
 878         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 879                 /* Get the response iocb from the head of work queue */
 880                 spin_lock_irq(&phba->hbalock);
 881                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 882                                  cq_event, struct lpfc_cq_event, list);
 883                 spin_unlock_irq(&phba->hbalock);
 884
 885                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 886                 case CQE_CODE_COMPL_WQE:
 887                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 888                                                  cq_event);
 889                         lpfc_sli_release_iocbq(phba, rspiocbq);
 890                         break;
 891                 case CQE_CODE_RECEIVE:
 892                 case CQE_CODE_RECEIVE_V1:
 893                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 894                                               cq_event);
 895                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 896                 }
 897         }
 898 }
 899
 900 /**
 901  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 902  * @phba: pointer to lpfc HBA data structure.
 903  *
 904  * This routine will cleanup posted ELS buffers after the HBA is reset
 905  * when bringing down the SLI Layer.
 906  *
 907  *
 908  * Return codes
 909  *   void.
 910  **/
 911 static void
 912 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 913 {
 914         struct lpfc_sli *psli = &phba->sli;
 915         struct lpfc_sli_ring *pring;
 916         struct lpfc_dmabuf *mp, *next_mp;
 917         LIST_HEAD(buflist);
 918         int count;
 919
 920         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 921                 lpfc_sli_hbqbuf_free_all(phba);
 922         else {
 923                 /* Cleanup preposted buffers on the ELS ring */
 924                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 925                 spin_lock_irq(&phba->hbalock);
 926                 list_splice_init(&pring->postbufq, &buflist);
 927                 spin_unlock_irq(&phba->hbalock);
 928
 929                 count = 0;
 930                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 931                         list_del(&mp->list);
 932                         count++;
 933                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 934                         kfree(mp);
 935                 }
 936
 937                 spin_lock_irq(&phba->hbalock);
 938                 pring->postbufq_cnt -= count;
 939                 spin_unlock_irq(&phba->hbalock);
 940         }
 941 }
 942
 943 /**
 944  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 945  * @phba: pointer to lpfc HBA data structure.
 946  *
 947  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 948  * down the SLI Layer.
 949  *
 950  * Return codes
 951  *   void
 952  **/
 953 static void
 954 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 955 {
 956         struct lpfc_sli *psli = &phba->sli;
 957         struct lpfc_queue *qp = NULL;
 958         struct lpfc_sli_ring *pring;
 959         LIST_HEAD(completions);
 960         int i;
 961
 962         if (phba->sli_rev != LPFC_SLI_REV4) {
 963                 for (i = 0; i < psli->num_rings; i++) {
 964                         pring = &psli->sli3_ring[i];
 965                         spin_lock_irq(&phba->hbalock);
 966                         /* At this point in time the HBA is either reset or DOA
 967                          * Nothing should be on txcmplq as it will
 968                          * NEVER complete.
 969                          */
 970                         list_splice_init(&pring->txcmplq, &completions);
 971                         pring->txcmplq_cnt = 0;
 972                         spin_unlock_irq(&phba->hbalock);
 973
 974                         lpfc_sli_abort_iocb_ring(phba, pring);
 975                 }
 976                 /* Cancel all the IOCBs from the completions list */
 977                 lpfc_sli_cancel_iocbs(phba, &completions,
 978                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 979                 return;
 980         }
 981         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 982                 pring = qp->pring;
 983                 if (!pring)
 984                         continue;
 985                 spin_lock_irq(&pring->ring_lock);
 986                 list_splice_init(&pring->txcmplq, &completions);
 987                 pring->txcmplq_cnt = 0;
 988                 spin_unlock_irq(&pring->ring_lock);
 989                 lpfc_sli_abort_iocb_ring(phba, pring);
 990         }
 991         /* Cancel all the IOCBs from the completions list */
 992         lpfc_sli_cancel_iocbs(phba, &completions,
 993                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 994 }
 995
 996 /**
 997  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 998         int i;
 999  * @phba: pointer to lpfc HBA data structure.
1000  *
1001  * This routine will do uninitialization after the HBA is reset when bring
1002  * down the SLI Layer.
1003  *
1004  * Return codes
1005  *   0 - success.
1006  *   Any other value - error.
1007  **/
1008 static int
1009 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1010 {
1011         lpfc_hba_free_post_buf(phba);
1012         lpfc_hba_clean_txcmplq(phba);
1013         return 0;
1014 }
1015
1016 /**
1017  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1018  * @phba: pointer to lpfc HBA data structure.
1019  *
1020  * This routine will do uninitialization after the HBA is reset when bring
1021  * down the SLI Layer.
1022  *
1023  * Return codes
1024  *   0 - success.
1025  *   Any other value - error.
1026  **/
1027 static int
1028 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1029 {
1030         struct lpfc_scsi_buf *psb, *psb_next;
1031         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1032         LIST_HEAD(aborts);
1033         LIST_HEAD(nvme_aborts);
1034         LIST_HEAD(nvmet_aborts);
1035         unsigned long iflag = 0;
1036         struct lpfc_sglq *sglq_entry = NULL;
1037
1038
1039         lpfc_sli_hbqbuf_free_all(phba);
1040         lpfc_hba_clean_txcmplq(phba);
1041
1042         /* At this point in time the HBA is either reset or DOA. Either
1043          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1044          * on the lpfc_els_sgl_list so that it can either be freed if the
1045          * driver is unloading or reposted if the driver is restarting
1046          * the port.
1047          */
1048         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1049                                         /* scsl_buf_list */
1050         /* sgl_list_lock required because worker thread uses this
1051          * list.
1052          */
1053         spin_lock(&phba->sli4_hba.sgl_list_lock);
1054         list_for_each_entry(sglq_entry,
1055                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1056                 sglq_entry->state = SGL_FREED;
1057
1058         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1059                         &phba->sli4_hba.lpfc_els_sgl_list);
1060
1061
1062         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1063         /* abts_scsi_buf_list_lock required because worker thread uses this
1064          * list.
1065          */
1066         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
1067                 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1068                 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1069                                  &aborts);
1070                 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1071         }
1072
1073         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1074                 spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1075                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list,
1076                                  &nvme_aborts);
1077                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1078                                  &nvmet_aborts);
1079                 spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
1080         }
1081
1082         spin_unlock_irq(&phba->hbalock);
1083
1084         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1085                 psb->pCmd = NULL;
1086                 psb->status = IOSTAT_SUCCESS;
1087         }
1088         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1089         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1090         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1091
1092         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1093                 list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) {
1094                         psb->pCmd = NULL;
1095                         psb->status = IOSTAT_SUCCESS;
1096                 }
1097                 spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag);
1098                 list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put);
1099                 spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag);
1100
1101                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1102                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1103                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1104                 }
1105         }
1106
1107         lpfc_sli4_free_sp_events(phba);
1108         return 0;
1109 }
1110
1111 /**
1112  * lpfc_hba_down_post - Wrapper func for hba down post routine
1113  * @phba: pointer to lpfc HBA data structure.
1114  *
1115  * This routine wraps the actual SLI3 or SLI4 routine for performing
1116  * uninitialization after the HBA is reset when bring down the SLI Layer.
1117  *
1118  * Return codes
1119  *   0 - success.
1120  *   Any other value - error.
1121  **/
1122 int
1123 lpfc_hba_down_post(struct lpfc_hba *phba)
1124 {
1125         return (*phba->lpfc_hba_down_post)(phba);
1126 }
1127
1128 /**
1129  * lpfc_hb_timeout - The HBA-timer timeout handler
1130  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1131  *
1132  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1133  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1134  * work-port-events bitmap and the worker thread is notified. This timeout
1135  * event will be used by the worker thread to invoke the actual timeout
1136  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1137  * be performed in the timeout handler and the HBA timeout event bit shall
1138  * be cleared by the worker thread after it has taken the event bitmap out.
1139  **/
1140 static void
1141 lpfc_hb_timeout(struct timer_list *t)
1142 {
1143         struct lpfc_hba *phba;
1144         uint32_t tmo_posted;
1145         unsigned long iflag;
1146
1147         phba = from_timer(phba, t, hb_tmofunc);
1148
1149         /* Check for heart beat timeout conditions */
1150         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1151         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1152         if (!tmo_posted)
1153                 phba->pport->work_port_events |= WORKER_HB_TMO;
1154         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1155
1156         /* Tell the worker thread there is work to do */
1157         if (!tmo_posted)
1158                 lpfc_worker_wake_up(phba);
1159         return;
1160 }
1161
1162 /**
1163  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1164  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1165  *
1166  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1167  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1168  * work-port-events bitmap and the worker thread is notified. This timeout
1169  * event will be used by the worker thread to invoke the actual timeout
1170  * handler routine, lpfc_rrq_handler. Any periodical operations will
1171  * be performed in the timeout handler and the RRQ timeout event bit shall
1172  * be cleared by the worker thread after it has taken the event bitmap out.
1173  **/
1174 static void
1175 lpfc_rrq_timeout(struct timer_list *t)
1176 {
1177         struct lpfc_hba *phba;
1178         unsigned long iflag;
1179
1180         phba = from_timer(phba, t, rrq_tmr);
1181         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1182         if (!(phba->pport->load_flag & FC_UNLOADING))
1183                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1184         else
1185                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1186         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1187
1188         if (!(phba->pport->load_flag & FC_UNLOADING))
1189                 lpfc_worker_wake_up(phba);
1190 }
1191
1192 /**
1193  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1194  * @phba: pointer to lpfc hba data structure.
1195  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1196  *
1197  * This is the callback function to the lpfc heart-beat mailbox command.
1198  * If configured, the lpfc driver issues the heart-beat mailbox command to
1199  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1200  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1201  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1202  * heart-beat outstanding state. Once the mailbox command comes back and
1203  * no error conditions detected, the heart-beat mailbox command timer is
1204  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1205  * state is cleared for the next heart-beat. If the timer expired with the
1206  * heart-beat outstanding state set, the driver will put the HBA offline.
1207  **/
1208 static void
1209 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1210 {
1211         unsigned long drvr_flag;
1212
1213         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1214         phba->hb_outstanding = 0;
1215         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1216
1217         /* Check and reset heart-beat timer is necessary */
1218         mempool_free(pmboxq, phba->mbox_mem_pool);
1219         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1220                 !(phba->link_state == LPFC_HBA_ERROR) &&
1221                 !(phba->pport->load_flag & FC_UNLOADING))
1222                 mod_timer(&phba->hb_tmofunc,
1223                           jiffies +
1224                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1225         return;
1226 }
1227
1228 /**
1229  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1230  * @phba: pointer to lpfc hba data structure.
1231  *
1232  * This is the actual HBA-timer timeout handler to be invoked by the worker
1233  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1234  * handler performs any periodic operations needed for the device. If such
1235  * periodic event has already been attended to either in the interrupt handler
1236  * or by processing slow-ring or fast-ring events within the HBA-timer
1237  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1238  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1239  * is configured and there is no heart-beat mailbox command outstanding, a
1240  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1241  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1242  * to offline.
1243  **/
1244 void
1245 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1246 {
1247         struct lpfc_vport **vports;
1248         LPFC_MBOXQ_t *pmboxq;
1249         struct lpfc_dmabuf *buf_ptr;
1250         int retval, i;
1251         struct lpfc_sli *psli = &phba->sli;
1252         LIST_HEAD(completions);
1253         struct lpfc_queue *qp;
1254         unsigned long time_elapsed;
1255         uint32_t tick_cqe, max_cqe, val;
1256         uint64_t tot, data1, data2, data3;
1257         struct lpfc_nvmet_tgtport *tgtp;
1258         struct lpfc_register reg_data;
1259         void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr;
1260
1261         vports = lpfc_create_vport_work_array(phba);
1262         if (vports != NULL)
1263                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1264                         lpfc_rcv_seq_check_edtov(vports[i]);
1265                         lpfc_fdmi_num_disc_check(vports[i]);
1266                 }
1267         lpfc_destroy_vport_work_array(phba, vports);
1268
1269         if ((phba->link_state == LPFC_HBA_ERROR) ||
1270                 (phba->pport->load_flag & FC_UNLOADING) ||
1271                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1272                 return;
1273
1274         if (phba->cfg_auto_imax) {
1275                 if (!phba->last_eqdelay_time) {
1276                         phba->last_eqdelay_time = jiffies;
1277                         goto skip_eqdelay;
1278                 }
1279                 time_elapsed = jiffies - phba->last_eqdelay_time;
1280                 phba->last_eqdelay_time = jiffies;
1281
1282                 tot = 0xffff;
1283                 /* Check outstanding IO count */
1284                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1285                         if (phba->nvmet_support) {
1286                                 tgtp = phba->targetport->private;
1287                                 /* Calculate outstanding IOs */
1288                                 tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
1289                                 tot += atomic_read(&tgtp->xmt_fcp_release);
1290                                 tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
1291                         } else {
1292                                 tot = atomic_read(&phba->fc4NvmeIoCmpls);
1293                                 data1 = atomic_read(
1294                                         &phba->fc4NvmeInputRequests);
1295                                 data2 = atomic_read(
1296                                         &phba->fc4NvmeOutputRequests);
1297                                 data3 = atomic_read(
1298                                         &phba->fc4NvmeControlRequests);
1299                                 tot =  (data1 + data2 + data3) - tot;
1300                         }
1301                 }
1302
1303                 /* Interrupts per sec per EQ */
1304                 val = phba->cfg_fcp_imax / phba->io_channel_irqs;
1305                 tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */
1306
1307                 /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */
1308                 max_cqe = time_elapsed * tick_cqe;
1309
1310                 for (i = 0; i < phba->io_channel_irqs; i++) {
1311                         /* Fast-path EQ */
1312                         qp = phba->sli4_hba.hba_eq[i];
1313                         if (!qp)
1314                                 continue;
1315
1316                         /* Use no EQ delay if we don't have many outstanding
1317                          * IOs, or if we are only processing 1 CQE/ISR or less.
1318                          * Otherwise, assume we can process up to lpfc_fcp_imax
1319                          * interrupts per HBA.
1320                          */
1321                         if (tot < LPFC_NODELAY_MAX_IO ||
1322                             qp->EQ_cqe_cnt <= max_cqe)
1323                                 val = 0;
1324                         else
1325                                 val = phba->cfg_fcp_imax;
1326
1327                         if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
1328                                 /* Use EQ Delay Register method */
1329
1330                                 /* Convert for EQ Delay register */
1331                                 if (val) {
1332                                         /* First, interrupts per sec per EQ */
1333                                         val = phba->cfg_fcp_imax /
1334                                                 phba->io_channel_irqs;
1335
1336                                         /* us delay between each interrupt */
1337                                         val = LPFC_SEC_TO_USEC / val;
1338                                 }
1339                                 if (val != qp->q_mode) {
1340                                         reg_data.word0 = 0;
1341                                         bf_set(lpfc_sliport_eqdelay_id,
1342                                                &reg_data, qp->queue_id);
1343                                         bf_set(lpfc_sliport_eqdelay_delay,
1344                                                &reg_data, val);
1345                                         writel(reg_data.word0, eqdreg);
1346                                 }
1347                         } else {
1348                                 /* Use mbox command method */
1349                                 if (val != qp->q_mode)
1350                                         lpfc_modify_hba_eq_delay(phba, i,
1351                                                                  1, val);
1352                         }
1353
1354                         /*
1355                          * val is cfg_fcp_imax or 0 for mbox delay or us delay
1356                          * between interrupts for EQDR.
1357                          */
1358                         qp->q_mode = val;
1359                         qp->EQ_cqe_cnt = 0;
1360                 }
1361         }
1362
1363 skip_eqdelay:
1364         spin_lock_irq(&phba->pport->work_port_lock);
1365
1366         if (time_after(phba->last_completion_time +
1367                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1368                         jiffies)) {
1369                 spin_unlock_irq(&phba->pport->work_port_lock);
1370                 if (!phba->hb_outstanding)
1371                         mod_timer(&phba->hb_tmofunc,
1372                                 jiffies +
1373                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1374                 else
1375                         mod_timer(&phba->hb_tmofunc,
1376                                 jiffies +
1377                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1378                 return;
1379         }
1380         spin_unlock_irq(&phba->pport->work_port_lock);
1381
1382         if (phba->elsbuf_cnt &&
1383                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1384                 spin_lock_irq(&phba->hbalock);
1385                 list_splice_init(&phba->elsbuf, &completions);
1386                 phba->elsbuf_cnt = 0;
1387                 phba->elsbuf_prev_cnt = 0;
1388                 spin_unlock_irq(&phba->hbalock);
1389
1390                 while (!list_empty(&completions)) {
1391                         list_remove_head(&completions, buf_ptr,
1392                                 struct lpfc_dmabuf, list);
1393                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1394                         kfree(buf_ptr);
1395                 }
1396         }
1397         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1398
1399         /* If there is no heart beat outstanding, issue a heartbeat command */
1400         if (phba->cfg_enable_hba_heartbeat) {
1401                 if (!phba->hb_outstanding) {
1402                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1403                                 (list_empty(&psli->mboxq))) {
1404                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1405                                                         GFP_KERNEL);
1406                                 if (!pmboxq) {
1407                                         mod_timer(&phba->hb_tmofunc,
1408                                                  jiffies +
1409                                                  msecs_to_jiffies(1000 *
1410                                                  LPFC_HB_MBOX_INTERVAL));
1411                                         return;
1412                                 }
1413
1414                                 lpfc_heart_beat(phba, pmboxq);
1415                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1416                                 pmboxq->vport = phba->pport;
1417                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1418                                                 MBX_NOWAIT);
1419
1420                                 if (retval != MBX_BUSY &&
1421                                         retval != MBX_SUCCESS) {
1422                                         mempool_free(pmboxq,
1423                                                         phba->mbox_mem_pool);
1424                                         mod_timer(&phba->hb_tmofunc,
1425                                                 jiffies +
1426                                                 msecs_to_jiffies(1000 *
1427                                                 LPFC_HB_MBOX_INTERVAL));
1428                                         return;
1429                                 }
1430                                 phba->skipped_hb = 0;
1431                                 phba->hb_outstanding = 1;
1432                         } else if (time_before_eq(phba->last_completion_time,
1433                                         phba->skipped_hb)) {
1434                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1435                                         "2857 Last completion time not "
1436                                         " updated in %d ms\n",
1437                                         jiffies_to_msecs(jiffies
1438                                                  - phba->last_completion_time));
1439                         } else
1440                                 phba->skipped_hb = jiffies;
1441
1442                         mod_timer(&phba->hb_tmofunc,
1443                                  jiffies +
1444                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1445                         return;
1446                 } else {
1447                         /*
1448                         * If heart beat timeout called with hb_outstanding set
1449                         * we need to give the hb mailbox cmd a chance to
1450                         * complete or TMO.
1451                         */
1452                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1453                                         "0459 Adapter heartbeat still out"
1454                                         "standing:last compl time was %d ms.\n",
1455                                         jiffies_to_msecs(jiffies
1456                                                  - phba->last_completion_time));
1457                         mod_timer(&phba->hb_tmofunc,
1458                                 jiffies +
1459                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1460                 }
1461         } else {
1462                         mod_timer(&phba->hb_tmofunc,
1463                                 jiffies +
1464                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1465         }
1466 }
1467
1468 /**
1469  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1470  * @phba: pointer to lpfc hba data structure.
1471  *
1472  * This routine is called to bring the HBA offline when HBA hardware error
1473  * other than Port Error 6 has been detected.
1474  **/
1475 static void
1476 lpfc_offline_eratt(struct lpfc_hba *phba)
1477 {
1478         struct lpfc_sli   *psli = &phba->sli;
1479
1480         spin_lock_irq(&phba->hbalock);
1481         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1482         spin_unlock_irq(&phba->hbalock);
1483         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1484
1485         lpfc_offline(phba);
1486         lpfc_reset_barrier(phba);
1487         spin_lock_irq(&phba->hbalock);
1488         lpfc_sli_brdreset(phba);
1489         spin_unlock_irq(&phba->hbalock);
1490         lpfc_hba_down_post(phba);
1491         lpfc_sli_brdready(phba, HS_MBRDY);
1492         lpfc_unblock_mgmt_io(phba);
1493         phba->link_state = LPFC_HBA_ERROR;
1494         return;
1495 }
1496
1497 /**
1498  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1499  * @phba: pointer to lpfc hba data structure.
1500  *
1501  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1502  * other than Port Error 6 has been detected.
1503  **/
1504 void
1505 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1506 {
1507         spin_lock_irq(&phba->hbalock);
1508         phba->link_state = LPFC_HBA_ERROR;
1509         spin_unlock_irq(&phba->hbalock);
1510
1511         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1512         lpfc_offline(phba);
1513         lpfc_hba_down_post(phba);
1514         lpfc_unblock_mgmt_io(phba);
1515 }
1516
1517 /**
1518  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1519  * @phba: pointer to lpfc hba data structure.
1520  *
1521  * This routine is invoked to handle the deferred HBA hardware error
1522  * conditions. This type of error is indicated by HBA by setting ER1
1523  * and another ER bit in the host status register. The driver will
1524  * wait until the ER1 bit clears before handling the error condition.
1525  **/
1526 static void
1527 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1528 {
1529         uint32_t old_host_status = phba->work_hs;
1530         struct lpfc_sli *psli = &phba->sli;
1531
1532         /* If the pci channel is offline, ignore possible errors,
1533          * since we cannot communicate with the pci card anyway.
1534          */
1535         if (pci_channel_offline(phba->pcidev)) {
1536                 spin_lock_irq(&phba->hbalock);
1537                 phba->hba_flag &= ~DEFER_ERATT;
1538                 spin_unlock_irq(&phba->hbalock);
1539                 return;
1540         }
1541
1542         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1543                 "0479 Deferred Adapter Hardware Error "
1544                 "Data: x%x x%x x%x\n",
1545                 phba->work_hs,
1546                 phba->work_status[0], phba->work_status[1]);
1547
1548         spin_lock_irq(&phba->hbalock);
1549         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1550         spin_unlock_irq(&phba->hbalock);
1551
1552
1553         /*
1554          * Firmware stops when it triggred erratt. That could cause the I/Os
1555          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1556          * SCSI layer retry it after re-establishing link.
1557          */
1558         lpfc_sli_abort_fcp_rings(phba);
1559
1560         /*
1561          * There was a firmware error. Take the hba offline and then
1562          * attempt to restart it.
1563          */
1564         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1565         lpfc_offline(phba);
1566
1567         /* Wait for the ER1 bit to clear.*/
1568         while (phba->work_hs & HS_FFER1) {
1569                 msleep(100);
1570                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1571                         phba->work_hs = UNPLUG_ERR ;
1572                         break;
1573                 }
1574                 /* If driver is unloading let the worker thread continue */
1575                 if (phba->pport->load_flag & FC_UNLOADING) {
1576                         phba->work_hs = 0;
1577                         break;
1578                 }
1579         }
1580
1581         /*
1582          * This is to ptrotect against a race condition in which
1583          * first write to the host attention register clear the
1584          * host status register.
1585          */
1586         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1587                 phba->work_hs = old_host_status & ~HS_FFER1;
1588
1589         spin_lock_irq(&phba->hbalock);
1590         phba->hba_flag &= ~DEFER_ERATT;
1591         spin_unlock_irq(&phba->hbalock);
1592         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1593         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1594 }
1595
1596 static void
1597 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1598 {
1599         struct lpfc_board_event_header board_event;
1600         struct Scsi_Host *shost;
1601
1602         board_event.event_type = FC_REG_BOARD_EVENT;
1603         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1604         shost = lpfc_shost_from_vport(phba->pport);
1605         fc_host_post_vendor_event(shost, fc_get_event_number(),
1606                                   sizeof(board_event),
1607                                   (char *) &board_event,
1608                                   LPFC_NL_VENDOR_ID);
1609 }
1610
1611 /**
1612  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1613  * @phba: pointer to lpfc hba data structure.
1614  *
1615  * This routine is invoked to handle the following HBA hardware error
1616  * conditions:
1617  * 1 - HBA error attention interrupt
1618  * 2 - DMA ring index out of range
1619  * 3 - Mailbox command came back as unknown
1620  **/
1621 static void
1622 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1623 {
1624         struct lpfc_vport *vport = phba->pport;
1625         struct lpfc_sli   *psli = &phba->sli;
1626         uint32_t event_data;
1627         unsigned long temperature;
1628         struct temp_event temp_event_data;
1629         struct Scsi_Host  *shost;
1630
1631         /* If the pci channel is offline, ignore possible errors,
1632          * since we cannot communicate with the pci card anyway.
1633          */
1634         if (pci_channel_offline(phba->pcidev)) {
1635                 spin_lock_irq(&phba->hbalock);
1636                 phba->hba_flag &= ~DEFER_ERATT;
1637                 spin_unlock_irq(&phba->hbalock);
1638                 return;
1639         }
1640
1641         /* If resets are disabled then leave the HBA alone and return */
1642         if (!phba->cfg_enable_hba_reset)
1643                 return;
1644
1645         /* Send an internal error event to mgmt application */
1646         lpfc_board_errevt_to_mgmt(phba);
1647
1648         if (phba->hba_flag & DEFER_ERATT)
1649                 lpfc_handle_deferred_eratt(phba);
1650
1651         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1652                 if (phba->work_hs & HS_FFER6)
1653                         /* Re-establishing Link */
1654                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1655                                         "1301 Re-establishing Link "
1656                                         "Data: x%x x%x x%x\n",
1657                                         phba->work_hs, phba->work_status[0],
1658                                         phba->work_status[1]);
1659                 if (phba->work_hs & HS_FFER8)
1660                         /* Device Zeroization */
1661                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1662                                         "2861 Host Authentication device "
1663                                         "zeroization Data:x%x x%x x%x\n",
1664                                         phba->work_hs, phba->work_status[0],
1665                                         phba->work_status[1]);
1666
1667                 spin_lock_irq(&phba->hbalock);
1668                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1669                 spin_unlock_irq(&phba->hbalock);
1670
1671                 /*
1672                 * Firmware stops when it triggled erratt with HS_FFER6.
1673                 * That could cause the I/Os dropped by the firmware.
1674                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1675                 * retry it after re-establishing link.
1676                 */
1677                 lpfc_sli_abort_fcp_rings(phba);
1678
1679                 /*
1680                  * There was a firmware error.  Take the hba offline and then
1681                  * attempt to restart it.
1682                  */
1683                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1684                 lpfc_offline(phba);
1685                 lpfc_sli_brdrestart(phba);
1686                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1687                         lpfc_unblock_mgmt_io(phba);
1688                         return;
1689                 }
1690                 lpfc_unblock_mgmt_io(phba);
1691         } else if (phba->work_hs & HS_CRIT_TEMP) {
1692                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1693                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1694                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1695                 temp_event_data.data = (uint32_t)temperature;
1696
1697                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1698                                 "0406 Adapter maximum temperature exceeded "
1699                                 "(%ld), taking this port offline "
1700                                 "Data: x%x x%x x%x\n",
1701                                 temperature, phba->work_hs,
1702                                 phba->work_status[0], phba->work_status[1]);
1703
1704                 shost = lpfc_shost_from_vport(phba->pport);
1705                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1706                                           sizeof(temp_event_data),
1707                                           (char *) &temp_event_data,
1708                                           SCSI_NL_VID_TYPE_PCI
1709                                           | PCI_VENDOR_ID_EMULEX);
1710
1711                 spin_lock_irq(&phba->hbalock);
1712                 phba->over_temp_state = HBA_OVER_TEMP;
1713                 spin_unlock_irq(&phba->hbalock);
1714                 lpfc_offline_eratt(phba);
1715
1716         } else {
1717                 /* The if clause above forces this code path when the status
1718                  * failure is a value other than FFER6. Do not call the offline
1719                  * twice. This is the adapter hardware error path.
1720                  */
1721                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1722                                 "0457 Adapter Hardware Error "
1723                                 "Data: x%x x%x x%x\n",
1724                                 phba->work_hs,
1725                                 phba->work_status[0], phba->work_status[1]);
1726
1727                 event_data = FC_REG_DUMP_EVENT;
1728                 shost = lpfc_shost_from_vport(vport);
1729                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1730                                 sizeof(event_data), (char *) &event_data,
1731                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1732
1733                 lpfc_offline_eratt(phba);
1734         }
1735         return;
1736 }
1737
1738 /**
1739  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1740  * @phba: pointer to lpfc hba data structure.
1741  * @mbx_action: flag for mailbox shutdown action.
1742  *
1743  * This routine is invoked to perform an SLI4 port PCI function reset in
1744  * response to port status register polling attention. It waits for port
1745  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1746  * During this process, interrupt vectors are freed and later requested
1747  * for handling possible port resource change.
1748  **/
1749 static int
1750 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1751                             bool en_rn_msg)
1752 {
1753         int rc;
1754         uint32_t intr_mode;
1755
1756         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1757             LPFC_SLI_INTF_IF_TYPE_2) {
1758                 /*
1759                  * On error status condition, driver need to wait for port
1760                  * ready before performing reset.
1761                  */
1762                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1763                 if (rc)
1764                         return rc;
1765         }
1766
1767         /* need reset: attempt for port recovery */
1768         if (en_rn_msg)
1769                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1770                                 "2887 Reset Needed: Attempting Port "
1771                                 "Recovery...\n");
1772         lpfc_offline_prep(phba, mbx_action);
1773         lpfc_offline(phba);
1774         /* release interrupt for possible resource change */
1775         lpfc_sli4_disable_intr(phba);
1776         lpfc_sli_brdrestart(phba);
1777         /* request and enable interrupt */
1778         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1779         if (intr_mode == LPFC_INTR_ERROR) {
1780                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1781                                 "3175 Failed to enable interrupt\n");
1782                 return -EIO;
1783         }
1784         phba->intr_mode = intr_mode;
1785         rc = lpfc_online(phba);
1786         if (rc == 0)
1787                 lpfc_unblock_mgmt_io(phba);
1788
1789         return rc;
1790 }
1791
1792 /**
1793  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1794  * @phba: pointer to lpfc hba data structure.
1795  *
1796  * This routine is invoked to handle the SLI4 HBA hardware error attention
1797  * conditions.
1798  **/
1799 static void
1800 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1801 {
1802         struct lpfc_vport *vport = phba->pport;
1803         uint32_t event_data;
1804         struct Scsi_Host *shost;
1805         uint32_t if_type;
1806         struct lpfc_register portstat_reg = {0};
1807         uint32_t reg_err1, reg_err2;
1808         uint32_t uerrlo_reg, uemasklo_reg;
1809         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1810         bool en_rn_msg = true;
1811         struct temp_event temp_event_data;
1812         struct lpfc_register portsmphr_reg;
1813         int rc, i;
1814
1815         /* If the pci channel is offline, ignore possible errors, since
1816          * we cannot communicate with the pci card anyway.
1817          */
1818         if (pci_channel_offline(phba->pcidev))
1819                 return;
1820
1821         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1822         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1823         switch (if_type) {
1824         case LPFC_SLI_INTF_IF_TYPE_0:
1825                 pci_rd_rc1 = lpfc_readl(
1826                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1827                                 &uerrlo_reg);
1828                 pci_rd_rc2 = lpfc_readl(
1829                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1830                                 &uemasklo_reg);
1831                 /* consider PCI bus read error as pci_channel_offline */
1832                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1833                         return;
1834                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1835                         lpfc_sli4_offline_eratt(phba);
1836                         return;
1837                 }
1838                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1839                                 "7623 Checking UE recoverable");
1840
1841                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1842                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1843                                        &portsmphr_reg.word0))
1844                                 continue;
1845
1846                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1847                                                    &portsmphr_reg);
1848                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1849                             LPFC_PORT_SEM_UE_RECOVERABLE)
1850                                 break;
1851                         /*Sleep for 1Sec, before checking SEMAPHORE */
1852                         msleep(1000);
1853                 }
1854
1855                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1856                                 "4827 smphr_port_status x%x : Waited %dSec",
1857                                 smphr_port_status, i);
1858
1859                 /* Recoverable UE, reset the HBA device */
1860                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1861                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1862                         for (i = 0; i < 20; i++) {
1863                                 msleep(1000);
1864                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1865                                     &portsmphr_reg.word0) &&
1866                                     (LPFC_POST_STAGE_PORT_READY ==
1867                                      bf_get(lpfc_port_smphr_port_status,
1868                                      &portsmphr_reg))) {
1869                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1870                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1871                                         if (rc == 0)
1872                                                 return;
1873                                         lpfc_printf_log(phba,
1874                                                 KERN_ERR, LOG_INIT,
1875                                                 "4215 Failed to recover UE");
1876                                         break;
1877                                 }
1878                         }
1879                 }
1880                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1881                                 "7624 Firmware not ready: Failing UE recovery,"
1882                                 " waited %dSec", i);
1883                 lpfc_sli4_offline_eratt(phba);
1884                 break;
1885
1886         case LPFC_SLI_INTF_IF_TYPE_2:
1887                 pci_rd_rc1 = lpfc_readl(
1888                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1889                                 &portstat_reg.word0);
1890                 /* consider PCI bus read error as pci_channel_offline */
1891                 if (pci_rd_rc1 == -EIO) {
1892                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1893                                 "3151 PCI bus read access failure: x%x\n",
1894                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1895                         return;
1896                 }
1897                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1898                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1899                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1900                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1901                                 "2889 Port Overtemperature event, "
1902                                 "taking port offline Data: x%x x%x\n",
1903                                 reg_err1, reg_err2);
1904
1905                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1906                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1907                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1908                         temp_event_data.data = 0xFFFFFFFF;
1909
1910                         shost = lpfc_shost_from_vport(phba->pport);
1911                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1912                                                   sizeof(temp_event_data),
1913                                                   (char *)&temp_event_data,
1914                                                   SCSI_NL_VID_TYPE_PCI
1915                                                   | PCI_VENDOR_ID_EMULEX);
1916
1917                         spin_lock_irq(&phba->hbalock);
1918                         phba->over_temp_state = HBA_OVER_TEMP;
1919                         spin_unlock_irq(&phba->hbalock);
1920                         lpfc_sli4_offline_eratt(phba);
1921                         return;
1922                 }
1923                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1924                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1925                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1926                                         "3143 Port Down: Firmware Update "
1927                                         "Detected\n");
1928                         en_rn_msg = false;
1929                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1930                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1931                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1932                                         "3144 Port Down: Debug Dump\n");
1933                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1934                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1935                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1936                                         "3145 Port Down: Provisioning\n");
1937
1938                 /* If resets are disabled then leave the HBA alone and return */
1939                 if (!phba->cfg_enable_hba_reset)
1940                         return;
1941
1942                 /* Check port status register for function reset */
1943                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1944                                 en_rn_msg);
1945                 if (rc == 0) {
1946                         /* don't report event on forced debug dump */
1947                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1948                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1949                                 return;
1950                         else
1951                                 break;
1952                 }
1953                 /* fall through for not able to recover */
1954                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1955                                 "3152 Unrecoverable error, bring the port "
1956                                 "offline\n");
1957                 lpfc_sli4_offline_eratt(phba);
1958                 break;
1959         case LPFC_SLI_INTF_IF_TYPE_1:
1960         default:
1961                 break;
1962         }
1963         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1964                         "3123 Report dump event to upper layer\n");
1965         /* Send an internal error event to mgmt application */
1966         lpfc_board_errevt_to_mgmt(phba);
1967
1968         event_data = FC_REG_DUMP_EVENT;
1969         shost = lpfc_shost_from_vport(vport);
1970         fc_host_post_vendor_event(shost, fc_get_event_number(),
1971                                   sizeof(event_data), (char *) &event_data,
1972                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1973 }
1974
1975 /**
1976  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1977  * @phba: pointer to lpfc HBA data structure.
1978  *
1979  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1980  * routine from the API jump table function pointer from the lpfc_hba struct.
1981  *
1982  * Return codes
1983  *   0 - success.
1984  *   Any other value - error.
1985  **/
1986 void
1987 lpfc_handle_eratt(struct lpfc_hba *phba)
1988 {
1989         (*phba->lpfc_handle_eratt)(phba);
1990 }
1991
1992 /**
1993  * lpfc_handle_latt - The HBA link event handler
1994  * @phba: pointer to lpfc hba data structure.
1995  *
1996  * This routine is invoked from the worker thread to handle a HBA host
1997  * attention link event. SLI3 only.
1998  **/
1999 void
2000 lpfc_handle_latt(struct lpfc_hba *phba)
2001 {
2002         struct lpfc_vport *vport = phba->pport;
2003         struct lpfc_sli   *psli = &phba->sli;
2004         LPFC_MBOXQ_t *pmb;
2005         volatile uint32_t control;
2006         struct lpfc_dmabuf *mp;
2007         int rc = 0;
2008
2009         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2010         if (!pmb) {
2011                 rc = 1;
2012                 goto lpfc_handle_latt_err_exit;
2013         }
2014
2015         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2016         if (!mp) {
2017                 rc = 2;
2018                 goto lpfc_handle_latt_free_pmb;
2019         }
2020
2021         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2022         if (!mp->virt) {
2023                 rc = 3;
2024                 goto lpfc_handle_latt_free_mp;
2025         }
2026
2027         /* Cleanup any outstanding ELS commands */
2028         lpfc_els_flush_all_cmd(phba);
2029
2030         psli->slistat.link_event++;
2031         lpfc_read_topology(phba, pmb, mp);
2032         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2033         pmb->vport = vport;
2034         /* Block ELS IOCBs until we have processed this mbox command */
2035         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2036         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2037         if (rc == MBX_NOT_FINISHED) {
2038                 rc = 4;
2039                 goto lpfc_handle_latt_free_mbuf;
2040         }
2041
2042         /* Clear Link Attention in HA REG */
2043         spin_lock_irq(&phba->hbalock);
2044         writel(HA_LATT, phba->HAregaddr);
2045         readl(phba->HAregaddr); /* flush */
2046         spin_unlock_irq(&phba->hbalock);
2047
2048         return;
2049
2050 lpfc_handle_latt_free_mbuf:
2051         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2052         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2053 lpfc_handle_latt_free_mp:
2054         kfree(mp);
2055 lpfc_handle_latt_free_pmb:
2056         mempool_free(pmb, phba->mbox_mem_pool);
2057 lpfc_handle_latt_err_exit:
2058         /* Enable Link attention interrupts */
2059         spin_lock_irq(&phba->hbalock);
2060         psli->sli_flag |= LPFC_PROCESS_LA;
2061         control = readl(phba->HCregaddr);
2062         control |= HC_LAINT_ENA;
2063         writel(control, phba->HCregaddr);
2064         readl(phba->HCregaddr); /* flush */
2065
2066         /* Clear Link Attention in HA REG */
2067         writel(HA_LATT, phba->HAregaddr);
2068         readl(phba->HAregaddr); /* flush */
2069         spin_unlock_irq(&phba->hbalock);
2070         lpfc_linkdown(phba);
2071         phba->link_state = LPFC_HBA_ERROR;
2072
2073         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2074                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2075
2076         return;
2077 }
2078
2079 /**
2080  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2081  * @phba: pointer to lpfc hba data structure.
2082  * @vpd: pointer to the vital product data.
2083  * @len: length of the vital product data in bytes.
2084  *
2085  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2086  * an array of characters. In this routine, the ModelName, ProgramType, and
2087  * ModelDesc, etc. fields of the phba data structure will be populated.
2088  *
2089  * Return codes
2090  *   0 - pointer to the VPD passed in is NULL
2091  *   1 - success
2092  **/
2093 int
2094 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2095 {
2096         uint8_t lenlo, lenhi;
2097         int Length;
2098         int i, j;
2099         int finished = 0;
2100         int index = 0;
2101
2102         if (!vpd)
2103                 return 0;
2104
2105         /* Vital Product */
2106         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2107                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2108                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2109                         (uint32_t) vpd[3]);
2110         while (!finished && (index < (len - 4))) {
2111                 switch (vpd[index]) {
2112                 case 0x82:
2113                 case 0x91:
2114                         index += 1;
2115                         lenlo = vpd[index];
2116                         index += 1;
2117                         lenhi = vpd[index];
2118                         index += 1;
2119                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2120                         index += i;
2121                         break;
2122                 case 0x90:
2123                         index += 1;
2124                         lenlo = vpd[index];
2125                         index += 1;
2126                         lenhi = vpd[index];
2127                         index += 1;
2128                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2129                         if (Length > len - index)
2130                                 Length = len - index;
2131                         while (Length > 0) {
2132                         /* Look for Serial Number */
2133                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2134                                 index += 2;
2135                                 i = vpd[index];
2136                                 index += 1;
2137                                 j = 0;
2138                                 Length -= (3+i);
2139                                 while(i--) {
2140                                         phba->SerialNumber[j++] = vpd[index++];
2141                                         if (j == 31)
2142                                                 break;
2143                                 }
2144                                 phba->SerialNumber[j] = 0;
2145                                 continue;
2146                         }
2147                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2148                                 phba->vpd_flag |= VPD_MODEL_DESC;
2149                                 index += 2;
2150                                 i = vpd[index];
2151                                 index += 1;
2152                                 j = 0;
2153                                 Length -= (3+i);
2154                                 while(i--) {
2155                                         phba->ModelDesc[j++] = vpd[index++];
2156                                         if (j == 255)
2157                                                 break;
2158                                 }
2159                                 phba->ModelDesc[j] = 0;
2160                                 continue;
2161                         }
2162                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2163                                 phba->vpd_flag |= VPD_MODEL_NAME;
2164                                 index += 2;
2165                                 i = vpd[index];
2166                                 index += 1;
2167                                 j = 0;
2168                                 Length -= (3+i);
2169                                 while(i--) {
2170                                         phba->ModelName[j++] = vpd[index++];
2171                                         if (j == 79)
2172                                                 break;
2173                                 }
2174                                 phba->ModelName[j] = 0;
2175                                 continue;
2176                         }
2177                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2178                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2179                                 index += 2;
2180                                 i = vpd[index];
2181                                 index += 1;
2182                                 j = 0;
2183                                 Length -= (3+i);
2184                                 while(i--) {
2185                                         phba->ProgramType[j++] = vpd[index++];
2186                                         if (j == 255)
2187                                                 break;
2188                                 }
2189                                 phba->ProgramType[j] = 0;
2190                                 continue;
2191                         }
2192                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2193                                 phba->vpd_flag |= VPD_PORT;
2194                                 index += 2;
2195                                 i = vpd[index];
2196                                 index += 1;
2197                                 j = 0;
2198                                 Length -= (3+i);
2199                                 while(i--) {
2200                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2201                                             (phba->sli4_hba.pport_name_sta ==
2202                                              LPFC_SLI4_PPNAME_GET)) {
2203                                                 j++;
2204                                                 index++;
2205                                         } else
2206                                                 phba->Port[j++] = vpd[index++];
2207                                         if (j == 19)
2208                                                 break;
2209                                 }
2210                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2211                                     (phba->sli4_hba.pport_name_sta ==
2212                                      LPFC_SLI4_PPNAME_NON))
2213                                         phba->Port[j] = 0;
2214                                 continue;
2215                         }
2216                         else {
2217                                 index += 2;
2218                                 i = vpd[index];
2219                                 index += 1;
2220                                 index += i;
2221                                 Length -= (3 + i);
2222                         }
2223                 }
2224                 finished = 0;
2225                 break;
2226                 case 0x78:
2227                         finished = 1;
2228                         break;
2229                 default:
2230                         index ++;
2231                         break;
2232                 }
2233         }
2234
2235         return(1);
2236 }
2237
2238 /**
2239  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2240  * @phba: pointer to lpfc hba data structure.
2241  * @mdp: pointer to the data structure to hold the derived model name.
2242  * @descp: pointer to the data structure to hold the derived description.
2243  *
2244  * This routine retrieves HBA's description based on its registered PCI device
2245  * ID. The @descp passed into this function points to an array of 256 chars. It
2246  * shall be returned with the model name, maximum speed, and the host bus type.
2247  * The @mdp passed into this function points to an array of 80 chars. When the
2248  * function returns, the @mdp will be filled with the model name.
2249  **/
2250 static void
2251 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2252 {
2253         lpfc_vpd_t *vp;
2254         uint16_t dev_id = phba->pcidev->device;
2255         int max_speed;
2256         int GE = 0;
2257         int oneConnect = 0; /* default is not a oneConnect */
2258         struct {
2259                 char *name;
2260                 char *bus;
2261                 char *function;
2262         } m = {"<Unknown>", "", ""};
2263
2264         if (mdp && mdp[0] != '\0'
2265                 && descp && descp[0] != '\0')
2266                 return;
2267
2268         if (phba->lmt & LMT_32Gb)
2269                 max_speed = 32;
2270         else if (phba->lmt & LMT_16Gb)
2271                 max_speed = 16;
2272         else if (phba->lmt & LMT_10Gb)
2273                 max_speed = 10;
2274         else if (phba->lmt & LMT_8Gb)
2275                 max_speed = 8;
2276         else if (phba->lmt & LMT_4Gb)
2277                 max_speed = 4;
2278         else if (phba->lmt & LMT_2Gb)
2279                 max_speed = 2;
2280         else if (phba->lmt & LMT_1Gb)
2281                 max_speed = 1;
2282         else
2283                 max_speed = 0;
2284
2285         vp = &phba->vpd;
2286
2287         switch (dev_id) {
2288         case PCI_DEVICE_ID_FIREFLY:
2289                 m = (typeof(m)){"LP6000", "PCI",
2290                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2291                 break;
2292         case PCI_DEVICE_ID_SUPERFLY:
2293                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2294                         m = (typeof(m)){"LP7000", "PCI", ""};
2295                 else
2296                         m = (typeof(m)){"LP7000E", "PCI", ""};
2297                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2298                 break;
2299         case PCI_DEVICE_ID_DRAGONFLY:
2300                 m = (typeof(m)){"LP8000", "PCI",
2301                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2302                 break;
2303         case PCI_DEVICE_ID_CENTAUR:
2304                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2305                         m = (typeof(m)){"LP9002", "PCI", ""};
2306                 else
2307                         m = (typeof(m)){"LP9000", "PCI", ""};
2308                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2309                 break;
2310         case PCI_DEVICE_ID_RFLY:
2311                 m = (typeof(m)){"LP952", "PCI",
2312                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2313                 break;
2314         case PCI_DEVICE_ID_PEGASUS:
2315                 m = (typeof(m)){"LP9802", "PCI-X",
2316                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2317                 break;
2318         case PCI_DEVICE_ID_THOR:
2319                 m = (typeof(m)){"LP10000", "PCI-X",
2320                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2321                 break;
2322         case PCI_DEVICE_ID_VIPER:
2323                 m = (typeof(m)){"LPX1000",  "PCI-X",
2324                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2325                 break;
2326         case PCI_DEVICE_ID_PFLY:
2327                 m = (typeof(m)){"LP982", "PCI-X",
2328                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2329                 break;
2330         case PCI_DEVICE_ID_TFLY:
2331                 m = (typeof(m)){"LP1050", "PCI-X",
2332                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2333                 break;
2334         case PCI_DEVICE_ID_HELIOS:
2335                 m = (typeof(m)){"LP11000", "PCI-X2",
2336                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2337                 break;
2338         case PCI_DEVICE_ID_HELIOS_SCSP:
2339                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2340                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2341                 break;
2342         case PCI_DEVICE_ID_HELIOS_DCSP:
2343                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2344                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2345                 break;
2346         case PCI_DEVICE_ID_NEPTUNE:
2347                 m = (typeof(m)){"LPe1000", "PCIe",
2348                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2349                 break;
2350         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2351                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2352                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2353                 break;
2354         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2355                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2356                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2357                 break;
2358         case PCI_DEVICE_ID_BMID:
2359                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2360                 break;
2361         case PCI_DEVICE_ID_BSMB:
2362                 m = (typeof(m)){"LP111", "PCI-X2",
2363                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2364                 break;
2365         case PCI_DEVICE_ID_ZEPHYR:
2366                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2367                 break;
2368         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2369                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2370                 break;
2371         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2372                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2373                 GE = 1;
2374                 break;
2375         case PCI_DEVICE_ID_ZMID:
2376                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2377                 break;
2378         case PCI_DEVICE_ID_ZSMB:
2379                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2380                 break;
2381         case PCI_DEVICE_ID_LP101:
2382                 m = (typeof(m)){"LP101", "PCI-X",
2383                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2384                 break;
2385         case PCI_DEVICE_ID_LP10000S:
2386                 m = (typeof(m)){"LP10000-S", "PCI",
2387                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2388                 break;
2389         case PCI_DEVICE_ID_LP11000S:
2390                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2391                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2392                 break;
2393         case PCI_DEVICE_ID_LPE11000S:
2394                 m = (typeof(m)){"LPe11000-S", "PCIe",
2395                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2396                 break;
2397         case PCI_DEVICE_ID_SAT:
2398                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2399                 break;
2400         case PCI_DEVICE_ID_SAT_MID:
2401                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2402                 break;
2403         case PCI_DEVICE_ID_SAT_SMB:
2404                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2405                 break;
2406         case PCI_DEVICE_ID_SAT_DCSP:
2407                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2408                 break;
2409         case PCI_DEVICE_ID_SAT_SCSP:
2410                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2411                 break;
2412         case PCI_DEVICE_ID_SAT_S:
2413                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2414                 break;
2415         case PCI_DEVICE_ID_HORNET:
2416                 m = (typeof(m)){"LP21000", "PCIe",
2417                                 "Obsolete, Unsupported FCoE Adapter"};
2418                 GE = 1;
2419                 break;
2420         case PCI_DEVICE_ID_PROTEUS_VF:
2421                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2422                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2423                 break;
2424         case PCI_DEVICE_ID_PROTEUS_PF:
2425                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2426                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2427                 break;
2428         case PCI_DEVICE_ID_PROTEUS_S:
2429                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2430                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2431                 break;
2432         case PCI_DEVICE_ID_TIGERSHARK:
2433                 oneConnect = 1;
2434                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2435                 break;
2436         case PCI_DEVICE_ID_TOMCAT:
2437                 oneConnect = 1;
2438                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2439                 break;
2440         case PCI_DEVICE_ID_FALCON:
2441                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2442                                 "EmulexSecure Fibre"};
2443                 break;
2444         case PCI_DEVICE_ID_BALIUS:
2445                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2446                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2447                 break;
2448         case PCI_DEVICE_ID_LANCER_FC:
2449                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2450                 break;
2451         case PCI_DEVICE_ID_LANCER_FC_VF:
2452                 m = (typeof(m)){"LPe16000", "PCIe",
2453                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2454                 break;
2455         case PCI_DEVICE_ID_LANCER_FCOE:
2456                 oneConnect = 1;
2457                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2458                 break;
2459         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2460                 oneConnect = 1;
2461                 m = (typeof(m)){"OCe15100", "PCIe",
2462                                 "Obsolete, Unsupported FCoE"};
2463                 break;
2464         case PCI_DEVICE_ID_LANCER_G6_FC:
2465                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2466                 break;
2467         case PCI_DEVICE_ID_SKYHAWK:
2468         case PCI_DEVICE_ID_SKYHAWK_VF:
2469                 oneConnect = 1;
2470                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2471                 break;
2472         default:
2473                 m = (typeof(m)){"Unknown", "", ""};
2474                 break;
2475         }
2476
2477         if (mdp && mdp[0] == '\0')
2478                 snprintf(mdp, 79,"%s", m.name);
2479         /*
2480          * oneConnect hba requires special processing, they are all initiators
2481          * and we put the port number on the end
2482          */
2483         if (descp && descp[0] == '\0') {
2484                 if (oneConnect)
2485                         snprintf(descp, 255,
2486                                 "Emulex OneConnect %s, %s Initiator %s",
2487                                 m.name, m.function,
2488                                 phba->Port);
2489                 else if (max_speed == 0)
2490                         snprintf(descp, 255,
2491                                 "Emulex %s %s %s",
2492                                 m.name, m.bus, m.function);
2493                 else
2494                         snprintf(descp, 255,
2495                                 "Emulex %s %d%s %s %s",
2496                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2497                                 m.bus, m.function);
2498         }
2499 }
2500
2501 /**
2502  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2503  * @phba: pointer to lpfc hba data structure.
2504  * @pring: pointer to a IOCB ring.
2505  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2506  *
2507  * This routine posts a given number of IOCBs with the associated DMA buffer
2508  * descriptors specified by the cnt argument to the given IOCB ring.
2509  *
2510  * Return codes
2511  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2512  **/
2513 int
2514 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2515 {
2516         IOCB_t *icmd;
2517         struct lpfc_iocbq *iocb;
2518         struct lpfc_dmabuf *mp1, *mp2;
2519
2520         cnt += pring->missbufcnt;
2521
2522         /* While there are buffers to post */
2523         while (cnt > 0) {
2524                 /* Allocate buffer for  command iocb */
2525                 iocb = lpfc_sli_get_iocbq(phba);
2526                 if (iocb == NULL) {
2527                         pring->missbufcnt = cnt;
2528                         return cnt;
2529                 }
2530                 icmd = &iocb->iocb;
2531
2532                 /* 2 buffers can be posted per command */
2533                 /* Allocate buffer to post */
2534                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2535                 if (mp1)
2536                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2537                 if (!mp1 || !mp1->virt) {
2538                         kfree(mp1);
2539                         lpfc_sli_release_iocbq(phba, iocb);
2540                         pring->missbufcnt = cnt;
2541                         return cnt;
2542                 }
2543
2544                 INIT_LIST_HEAD(&mp1->list);
2545                 /* Allocate buffer to post */
2546                 if (cnt > 1) {
2547                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2548                         if (mp2)
2549                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2550                                                             &mp2->phys);
2551                         if (!mp2 || !mp2->virt) {
2552                                 kfree(mp2);
2553                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2554                                 kfree(mp1);
2555                                 lpfc_sli_release_iocbq(phba, iocb);
2556                                 pring->missbufcnt = cnt;
2557                                 return cnt;
2558                         }
2559
2560                         INIT_LIST_HEAD(&mp2->list);
2561                 } else {
2562                         mp2 = NULL;
2563                 }
2564
2565                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2566                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2567                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2568                 icmd->ulpBdeCount = 1;
2569                 cnt--;
2570                 if (mp2) {
2571                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2572                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2573                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2574                         cnt--;
2575                         icmd->ulpBdeCount = 2;
2576                 }
2577
2578                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2579                 icmd->ulpLe = 1;
2580
2581                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2582                     IOCB_ERROR) {
2583                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2584                         kfree(mp1);
2585                         cnt++;
2586                         if (mp2) {
2587                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2588                                 kfree(mp2);
2589                                 cnt++;
2590                         }
2591                         lpfc_sli_release_iocbq(phba, iocb);
2592                         pring->missbufcnt = cnt;
2593                         return cnt;
2594                 }
2595                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2596                 if (mp2)
2597                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2598         }
2599         pring->missbufcnt = 0;
2600         return 0;
2601 }
2602
2603 /**
2604  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2605  * @phba: pointer to lpfc hba data structure.
2606  *
2607  * This routine posts initial receive IOCB buffers to the ELS ring. The
2608  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2609  * set to 64 IOCBs. SLI3 only.
2610  *
2611  * Return codes
2612  *   0 - success (currently always success)
2613  **/
2614 static int
2615 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2616 {
2617         struct lpfc_sli *psli = &phba->sli;
2618
2619         /* Ring 0, ELS / CT buffers */
2620         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2621         /* Ring 2 - FCP no buffers needed */
2622
2623         return 0;
2624 }
2625
2626 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2627
2628 /**
2629  * lpfc_sha_init - Set up initial array of hash table entries
2630  * @HashResultPointer: pointer to an array as hash table.
2631  *
2632  * This routine sets up the initial values to the array of hash table entries
2633  * for the LC HBAs.
2634  **/
2635 static void
2636 lpfc_sha_init(uint32_t * HashResultPointer)
2637 {
2638         HashResultPointer[0] = 0x67452301;
2639         HashResultPointer[1] = 0xEFCDAB89;
2640         HashResultPointer[2] = 0x98BADCFE;
2641         HashResultPointer[3] = 0x10325476;
2642         HashResultPointer[4] = 0xC3D2E1F0;
2643 }
2644
2645 /**
2646  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2647  * @HashResultPointer: pointer to an initial/result hash table.
2648  * @HashWorkingPointer: pointer to an working hash table.
2649  *
2650  * This routine iterates an initial hash table pointed by @HashResultPointer
2651  * with the values from the working hash table pointeed by @HashWorkingPointer.
2652  * The results are putting back to the initial hash table, returned through
2653  * the @HashResultPointer as the result hash table.
2654  **/
2655 static void
2656 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2657 {
2658         int t;
2659         uint32_t TEMP;
2660         uint32_t A, B, C, D, E;
2661         t = 16;
2662         do {
2663                 HashWorkingPointer[t] =
2664                     S(1,
2665                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2666                                                                      8] ^
2667                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2668         } while (++t <= 79);
2669         t = 0;
2670         A = HashResultPointer[0];
2671         B = HashResultPointer[1];
2672         C = HashResultPointer[2];
2673         D = HashResultPointer[3];
2674         E = HashResultPointer[4];
2675
2676         do {
2677                 if (t < 20) {
2678                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2679                 } else if (t < 40) {
2680                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2681                 } else if (t < 60) {
2682                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2683                 } else {
2684                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2685                 }
2686                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2687                 E = D;
2688                 D = C;
2689                 C = S(30, B);
2690                 B = A;
2691                 A = TEMP;
2692         } while (++t <= 79);
2693
2694         HashResultPointer[0] += A;
2695         HashResultPointer[1] += B;
2696         HashResultPointer[2] += C;
2697         HashResultPointer[3] += D;
2698         HashResultPointer[4] += E;
2699
2700 }
2701
2702 /**
2703  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2704  * @RandomChallenge: pointer to the entry of host challenge random number array.
2705  * @HashWorking: pointer to the entry of the working hash array.
2706  *
2707  * This routine calculates the working hash array referred by @HashWorking
2708  * from the challenge random numbers associated with the host, referred by
2709  * @RandomChallenge. The result is put into the entry of the working hash
2710  * array and returned by reference through @HashWorking.
2711  **/
2712 static void
2713 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2714 {
2715         *HashWorking = (*RandomChallenge ^ *HashWorking);
2716 }
2717
2718 /**
2719  * lpfc_hba_init - Perform special handling for LC HBA initialization
2720  * @phba: pointer to lpfc hba data structure.
2721  * @hbainit: pointer to an array of unsigned 32-bit integers.
2722  *
2723  * This routine performs the special handling for LC HBA initialization.
2724  **/
2725 void
2726 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2727 {
2728         int t;
2729         uint32_t *HashWorking;
2730         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2731
2732         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2733         if (!HashWorking)
2734                 return;
2735
2736         HashWorking[0] = HashWorking[78] = *pwwnn++;
2737         HashWorking[1] = HashWorking[79] = *pwwnn;
2738
2739         for (t = 0; t < 7; t++)
2740                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2741
2742         lpfc_sha_init(hbainit);
2743         lpfc_sha_iterate(hbainit, HashWorking);
2744         kfree(HashWorking);
2745 }
2746
2747 /**
2748  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2749  * @vport: pointer to a virtual N_Port data structure.
2750  *
2751  * This routine performs the necessary cleanups before deleting the @vport.
2752  * It invokes the discovery state machine to perform necessary state
2753  * transitions and to release the ndlps associated with the @vport. Note,
2754  * the physical port is treated as @vport 0.
2755  **/
2756 void
2757 lpfc_cleanup(struct lpfc_vport *vport)
2758 {
2759         struct lpfc_hba   *phba = vport->phba;
2760         struct lpfc_nodelist *ndlp, *next_ndlp;
2761         int i = 0;
2762
2763         if (phba->link_state > LPFC_LINK_DOWN)
2764                 lpfc_port_link_failure(vport);
2765
2766         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2767                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2768                         ndlp = lpfc_enable_node(vport, ndlp,
2769                                                 NLP_STE_UNUSED_NODE);
2770                         if (!ndlp)
2771                                 continue;
2772                         spin_lock_irq(&phba->ndlp_lock);
2773                         NLP_SET_FREE_REQ(ndlp);
2774                         spin_unlock_irq(&phba->ndlp_lock);
2775                         /* Trigger the release of the ndlp memory */
2776                         lpfc_nlp_put(ndlp);
2777                         continue;
2778                 }
2779                 spin_lock_irq(&phba->ndlp_lock);
2780                 if (NLP_CHK_FREE_REQ(ndlp)) {
2781                         /* The ndlp should not be in memory free mode already */
2782                         spin_unlock_irq(&phba->ndlp_lock);
2783                         continue;
2784                 } else
2785                         /* Indicate request for freeing ndlp memory */
2786                         NLP_SET_FREE_REQ(ndlp);
2787                 spin_unlock_irq(&phba->ndlp_lock);
2788
2789                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2790                     ndlp->nlp_DID == Fabric_DID) {
2791                         /* Just free up ndlp with Fabric_DID for vports */
2792                         lpfc_nlp_put(ndlp);
2793                         continue;
2794                 }
2795
2796                 /* take care of nodes in unused state before the state
2797                  * machine taking action.
2798                  */
2799                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2800                         lpfc_nlp_put(ndlp);
2801                         continue;
2802                 }
2803
2804                 if (ndlp->nlp_type & NLP_FABRIC)
2805                         lpfc_disc_state_machine(vport, ndlp, NULL,
2806                                         NLP_EVT_DEVICE_RECOVERY);
2807
2808                 lpfc_disc_state_machine(vport, ndlp, NULL,
2809                                              NLP_EVT_DEVICE_RM);
2810         }
2811
2812         /* At this point, ALL ndlp's should be gone
2813          * because of the previous NLP_EVT_DEVICE_RM.
2814          * Lets wait for this to happen, if needed.
2815          */
2816         while (!list_empty(&vport->fc_nodes)) {
2817                 if (i++ > 3000) {
2818                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2819                                 "0233 Nodelist not empty\n");
2820                         list_for_each_entry_safe(ndlp, next_ndlp,
2821                                                 &vport->fc_nodes, nlp_listp) {
2822                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2823                                                 LOG_NODE,
2824                                                 "0282 did:x%x ndlp:x%p "
2825                                                 "usgmap:x%x refcnt:%d\n",
2826                                                 ndlp->nlp_DID, (void *)ndlp,
2827                                                 ndlp->nlp_usg_map,
2828                                                 kref_read(&ndlp->kref));
2829                         }
2830                         break;
2831                 }
2832
2833                 /* Wait for any activity on ndlps to settle */
2834                 msleep(10);
2835         }
2836         lpfc_cleanup_vports_rrqs(vport, NULL);
2837 }
2838
2839 /**
2840  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2841  * @vport: pointer to a virtual N_Port data structure.
2842  *
2843  * This routine stops all the timers associated with a @vport. This function
2844  * is invoked before disabling or deleting a @vport. Note that the physical
2845  * port is treated as @vport 0.
2846  **/
2847 void
2848 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2849 {
2850         del_timer_sync(&vport->els_tmofunc);
2851         del_timer_sync(&vport->delayed_disc_tmo);
2852         lpfc_can_disctmo(vport);
2853         return;
2854 }
2855
2856 /**
2857  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2858  * @phba: pointer to lpfc hba data structure.
2859  *
2860  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2861  * caller of this routine should already hold the host lock.
2862  **/
2863 void
2864 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2865 {
2866         /* Clear pending FCF rediscovery wait flag */
2867         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2868
2869         /* Now, try to stop the timer */
2870         del_timer(&phba->fcf.redisc_wait);
2871 }
2872
2873 /**
2874  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2875  * @phba: pointer to lpfc hba data structure.
2876  *
2877  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2878  * checks whether the FCF rediscovery wait timer is pending with the host
2879  * lock held before proceeding with disabling the timer and clearing the
2880  * wait timer pendig flag.
2881  **/
2882 void
2883 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2884 {
2885         spin_lock_irq(&phba->hbalock);
2886         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2887                 /* FCF rediscovery timer already fired or stopped */
2888                 spin_unlock_irq(&phba->hbalock);
2889                 return;
2890         }
2891         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2892         /* Clear failover in progress flags */
2893         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2894         spin_unlock_irq(&phba->hbalock);
2895 }
2896
2897 /**
2898  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2899  * @phba: pointer to lpfc hba data structure.
2900  *
2901  * This routine stops all the timers associated with a HBA. This function is
2902  * invoked before either putting a HBA offline or unloading the driver.
2903  **/
2904 void
2905 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2906 {
2907         lpfc_stop_vport_timers(phba->pport);
2908         del_timer_sync(&phba->sli.mbox_tmo);
2909         del_timer_sync(&phba->fabric_block_timer);
2910         del_timer_sync(&phba->eratt_poll);
2911         del_timer_sync(&phba->hb_tmofunc);
2912         if (phba->sli_rev == LPFC_SLI_REV4) {
2913                 del_timer_sync(&phba->rrq_tmr);
2914                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2915         }
2916         phba->hb_outstanding = 0;
2917
2918         switch (phba->pci_dev_grp) {
2919         case LPFC_PCI_DEV_LP:
2920                 /* Stop any LightPulse device specific driver timers */
2921                 del_timer_sync(&phba->fcp_poll_timer);
2922                 break;
2923         case LPFC_PCI_DEV_OC:
2924                 /* Stop any OneConnect device sepcific driver timers */
2925                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2926                 break;
2927         default:
2928                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2929                                 "0297 Invalid device group (x%x)\n",
2930                                 phba->pci_dev_grp);
2931                 break;
2932         }
2933         return;
2934 }
2935
2936 /**
2937  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2938  * @phba: pointer to lpfc hba data structure.
2939  *
2940  * This routine marks a HBA's management interface as blocked. Once the HBA's
2941  * management interface is marked as blocked, all the user space access to
2942  * the HBA, whether they are from sysfs interface or libdfc interface will
2943  * all be blocked. The HBA is set to block the management interface when the
2944  * driver prepares the HBA interface for online or offline.
2945  **/
2946 static void
2947 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2948 {
2949         unsigned long iflag;
2950         uint8_t actcmd = MBX_HEARTBEAT;
2951         unsigned long timeout;
2952
2953         spin_lock_irqsave(&phba->hbalock, iflag);
2954         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2955         spin_unlock_irqrestore(&phba->hbalock, iflag);
2956         if (mbx_action == LPFC_MBX_NO_WAIT)
2957                 return;
2958         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2959         spin_lock_irqsave(&phba->hbalock, iflag);
2960         if (phba->sli.mbox_active) {
2961                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2962                 /* Determine how long we might wait for the active mailbox
2963                  * command to be gracefully completed by firmware.
2964                  */
2965                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2966                                 phba->sli.mbox_active) * 1000) + jiffies;
2967         }
2968         spin_unlock_irqrestore(&phba->hbalock, iflag);
2969
2970         /* Wait for the outstnading mailbox command to complete */
2971         while (phba->sli.mbox_active) {
2972                 /* Check active mailbox complete status every 2ms */
2973                 msleep(2);
2974                 if (time_after(jiffies, timeout)) {
2975                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2976                                 "2813 Mgmt IO is Blocked %x "
2977                                 "- mbox cmd %x still active\n",
2978                                 phba->sli.sli_flag, actcmd);
2979                         break;
2980                 }
2981         }
2982 }
2983
2984 /**
2985  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2986  * @phba: pointer to lpfc hba data structure.
2987  *
2988  * Allocate RPIs for all active remote nodes. This is needed whenever
2989  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2990  * is to fixup the temporary rpi assignments.
2991  **/
2992 void
2993 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2994 {
2995         struct lpfc_nodelist  *ndlp, *next_ndlp;
2996         struct lpfc_vport **vports;
2997         int i, rpi;
2998         unsigned long flags;
2999
3000         if (phba->sli_rev != LPFC_SLI_REV4)
3001                 return;
3002
3003         vports = lpfc_create_vport_work_array(phba);
3004         if (vports == NULL)
3005                 return;
3006
3007         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3008                 if (vports[i]->load_flag & FC_UNLOADING)
3009                         continue;
3010
3011                 list_for_each_entry_safe(ndlp, next_ndlp,
3012                                          &vports[i]->fc_nodes,
3013                                          nlp_listp) {
3014                         if (!NLP_CHK_NODE_ACT(ndlp))
3015                                 continue;
3016                         rpi = lpfc_sli4_alloc_rpi(phba);
3017                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3018                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3019                                 NLP_CLR_NODE_ACT(ndlp);
3020                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3021                                 continue;
3022                         }
3023                         ndlp->nlp_rpi = rpi;
3024                         lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3025                                          "0009 rpi:%x DID:%x "
3026                                          "flg:%x map:%x %p\n", ndlp->nlp_rpi,
3027                                          ndlp->nlp_DID, ndlp->nlp_flag,
3028                                          ndlp->nlp_usg_map, ndlp);
3029                 }
3030         }
3031         lpfc_destroy_vport_work_array(phba, vports);
3032 }
3033
3034 /**
3035  * lpfc_online - Initialize and bring a HBA online
3036  * @phba: pointer to lpfc hba data structure.
3037  *
3038  * This routine initializes the HBA and brings a HBA online. During this
3039  * process, the management interface is blocked to prevent user space access
3040  * to the HBA interfering with the driver initialization.
3041  *
3042  * Return codes
3043  *   0 - successful
3044  *   1 - failed
3045  **/
3046 int
3047 lpfc_online(struct lpfc_hba *phba)
3048 {
3049         struct lpfc_vport *vport;
3050         struct lpfc_vport **vports;
3051         int i, error = 0;
3052         bool vpis_cleared = false;
3053
3054         if (!phba)
3055                 return 0;
3056         vport = phba->pport;
3057
3058         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3059                 return 0;
3060
3061         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3062                         "0458 Bring Adapter online\n");
3063
3064         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3065
3066         if (phba->sli_rev == LPFC_SLI_REV4) {
3067                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3068                         lpfc_unblock_mgmt_io(phba);
3069                         return 1;
3070                 }
3071                 spin_lock_irq(&phba->hbalock);
3072                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3073                         vpis_cleared = true;
3074                 spin_unlock_irq(&phba->hbalock);
3075
3076                 /* Reestablish the local initiator port.
3077                  * The offline process destroyed the previous lport.
3078                  */
3079                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3080                                 !phba->nvmet_support) {
3081                         error = lpfc_nvme_create_localport(phba->pport);
3082                         if (error)
3083                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3084                                         "6132 NVME restore reg failed "
3085                                         "on nvmei error x%x\n", error);
3086                 }
3087         } else {
3088                 lpfc_sli_queue_init(phba);
3089                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3090                         lpfc_unblock_mgmt_io(phba);
3091                         return 1;
3092                 }
3093         }
3094
3095         vports = lpfc_create_vport_work_array(phba);
3096         if (vports != NULL) {
3097                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3098                         struct Scsi_Host *shost;
3099                         shost = lpfc_shost_from_vport(vports[i]);
3100                         spin_lock_irq(shost->host_lock);
3101                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3102                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3103                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3104                         if (phba->sli_rev == LPFC_SLI_REV4) {
3105                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3106                                 if ((vpis_cleared) &&
3107                                     (vports[i]->port_type !=
3108                                         LPFC_PHYSICAL_PORT))
3109                                         vports[i]->vpi = 0;
3110                         }
3111                         spin_unlock_irq(shost->host_lock);
3112                 }
3113         }
3114         lpfc_destroy_vport_work_array(phba, vports);
3115
3116         lpfc_unblock_mgmt_io(phba);
3117         return 0;
3118 }
3119
3120 /**
3121  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3122  * @phba: pointer to lpfc hba data structure.
3123  *
3124  * This routine marks a HBA's management interface as not blocked. Once the
3125  * HBA's management interface is marked as not blocked, all the user space
3126  * access to the HBA, whether they are from sysfs interface or libdfc
3127  * interface will be allowed. The HBA is set to block the management interface
3128  * when the driver prepares the HBA interface for online or offline and then
3129  * set to unblock the management interface afterwards.
3130  **/
3131 void
3132 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3133 {
3134         unsigned long iflag;
3135
3136         spin_lock_irqsave(&phba->hbalock, iflag);
3137         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3138         spin_unlock_irqrestore(&phba->hbalock, iflag);
3139 }
3140
3141 /**
3142  * lpfc_offline_prep - Prepare a HBA to be brought offline
3143  * @phba: pointer to lpfc hba data structure.
3144  *
3145  * This routine is invoked to prepare a HBA to be brought offline. It performs
3146  * unregistration login to all the nodes on all vports and flushes the mailbox
3147  * queue to make it ready to be brought offline.
3148  **/
3149 void
3150 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3151 {
3152         struct lpfc_vport *vport = phba->pport;
3153         struct lpfc_nodelist  *ndlp, *next_ndlp;
3154         struct lpfc_vport **vports;
3155         struct Scsi_Host *shost;
3156         int i;
3157
3158         if (vport->fc_flag & FC_OFFLINE_MODE)
3159                 return;
3160
3161         lpfc_block_mgmt_io(phba, mbx_action);
3162
3163         lpfc_linkdown(phba);
3164
3165         /* Issue an unreg_login to all nodes on all vports */
3166         vports = lpfc_create_vport_work_array(phba);
3167         if (vports != NULL) {
3168                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3169                         if (vports[i]->load_flag & FC_UNLOADING)
3170                                 continue;
3171                         shost = lpfc_shost_from_vport(vports[i]);
3172                         spin_lock_irq(shost->host_lock);
3173                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3174                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3175                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3176                         spin_unlock_irq(shost->host_lock);
3177
3178                         shost = lpfc_shost_from_vport(vports[i]);
3179                         list_for_each_entry_safe(ndlp, next_ndlp,
3180                                                  &vports[i]->fc_nodes,
3181                                                  nlp_listp) {
3182                                 if (!NLP_CHK_NODE_ACT(ndlp))
3183                                         continue;
3184                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3185                                         continue;
3186                                 if (ndlp->nlp_type & NLP_FABRIC) {
3187                                         lpfc_disc_state_machine(vports[i], ndlp,
3188                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3189                                         lpfc_disc_state_machine(vports[i], ndlp,
3190                                                 NULL, NLP_EVT_DEVICE_RM);
3191                                 }
3192                                 spin_lock_irq(shost->host_lock);
3193                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3194                                 spin_unlock_irq(shost->host_lock);
3195                                 /*
3196                                  * Whenever an SLI4 port goes offline, free the
3197                                  * RPI. Get a new RPI when the adapter port
3198                                  * comes back online.
3199                                  */
3200                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3201                                         lpfc_printf_vlog(ndlp->vport,
3202                                                          KERN_INFO, LOG_NODE,
3203                                                          "0011 lpfc_offline: "
3204                                                          "ndlp:x%p did %x "
3205                                                          "usgmap:x%x rpi:%x\n",
3206                                                          ndlp, ndlp->nlp_DID,
3207                                                          ndlp->nlp_usg_map,
3208                                                          ndlp->nlp_rpi);
3209
3210                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3211                                 }
3212                                 lpfc_unreg_rpi(vports[i], ndlp);
3213                         }
3214                 }
3215         }
3216         lpfc_destroy_vport_work_array(phba, vports);
3217
3218         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3219
3220         if (phba->wq)
3221                 flush_workqueue(phba->wq);
3222 }
3223
3224 /**
3225  * lpfc_offline - Bring a HBA offline
3226  * @phba: pointer to lpfc hba data structure.
3227  *
3228  * This routine actually brings a HBA offline. It stops all the timers
3229  * associated with the HBA, brings down the SLI layer, and eventually
3230  * marks the HBA as in offline state for the upper layer protocol.
3231  **/
3232 void
3233 lpfc_offline(struct lpfc_hba *phba)
3234 {
3235         struct Scsi_Host  *shost;
3236         struct lpfc_vport **vports;
3237         int i;
3238
3239         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3240                 return;
3241
3242         /* stop port and all timers associated with this hba */
3243         lpfc_stop_port(phba);
3244
3245         /* Tear down the local and target port registrations.  The
3246          * nvme transports need to cleanup.
3247          */
3248         lpfc_nvmet_destroy_targetport(phba);
3249         lpfc_nvme_destroy_localport(phba->pport);
3250
3251         vports = lpfc_create_vport_work_array(phba);
3252         if (vports != NULL)
3253                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3254                         lpfc_stop_vport_timers(vports[i]);
3255         lpfc_destroy_vport_work_array(phba, vports);
3256         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3257                         "0460 Bring Adapter offline\n");
3258         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3259            now.  */
3260         lpfc_sli_hba_down(phba);
3261         spin_lock_irq(&phba->hbalock);
3262         phba->work_ha = 0;
3263         spin_unlock_irq(&phba->hbalock);
3264         vports = lpfc_create_vport_work_array(phba);
3265         if (vports != NULL)
3266                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3267                         shost = lpfc_shost_from_vport(vports[i]);
3268                         spin_lock_irq(shost->host_lock);
3269                         vports[i]->work_port_events = 0;
3270                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3271                         spin_unlock_irq(shost->host_lock);
3272                 }
3273         lpfc_destroy_vport_work_array(phba, vports);
3274 }
3275
3276 /**
3277  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3278  * @phba: pointer to lpfc hba data structure.
3279  *
3280  * This routine is to free all the SCSI buffers and IOCBs from the driver
3281  * list back to kernel. It is called from lpfc_pci_remove_one to free
3282  * the internal resources before the device is removed from the system.
3283  **/
3284 static void
3285 lpfc_scsi_free(struct lpfc_hba *phba)
3286 {
3287         struct lpfc_scsi_buf *sb, *sb_next;
3288
3289         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3290                 return;
3291
3292         spin_lock_irq(&phba->hbalock);
3293
3294         /* Release all the lpfc_scsi_bufs maintained by this host. */
3295
3296         spin_lock(&phba->scsi_buf_list_put_lock);
3297         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3298                                  list) {
3299                 list_del(&sb->list);
3300                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3301                               sb->dma_handle);
3302                 kfree(sb);
3303                 phba->total_scsi_bufs--;
3304         }
3305         spin_unlock(&phba->scsi_buf_list_put_lock);
3306
3307         spin_lock(&phba->scsi_buf_list_get_lock);
3308         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3309                                  list) {
3310                 list_del(&sb->list);
3311                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3312                               sb->dma_handle);
3313                 kfree(sb);
3314                 phba->total_scsi_bufs--;
3315         }
3316         spin_unlock(&phba->scsi_buf_list_get_lock);
3317         spin_unlock_irq(&phba->hbalock);
3318 }
3319 /**
3320  * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists
3321  * @phba: pointer to lpfc hba data structure.
3322  *
3323  * This routine is to free all the NVME buffers and IOCBs from the driver
3324  * list back to kernel. It is called from lpfc_pci_remove_one to free
3325  * the internal resources before the device is removed from the system.
3326  **/
3327 static void
3328 lpfc_nvme_free(struct lpfc_hba *phba)
3329 {
3330         struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next;
3331
3332         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3333                 return;
3334
3335         spin_lock_irq(&phba->hbalock);
3336
3337         /* Release all the lpfc_nvme_bufs maintained by this host. */
3338         spin_lock(&phba->nvme_buf_list_put_lock);
3339         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3340                                  &phba->lpfc_nvme_buf_list_put, list) {
3341                 list_del(&lpfc_ncmd->list);
3342                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3343                               lpfc_ncmd->dma_handle);
3344                 kfree(lpfc_ncmd);
3345                 phba->total_nvme_bufs--;
3346         }
3347         spin_unlock(&phba->nvme_buf_list_put_lock);
3348
3349         spin_lock(&phba->nvme_buf_list_get_lock);
3350         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3351                                  &phba->lpfc_nvme_buf_list_get, list) {
3352                 list_del(&lpfc_ncmd->list);
3353                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data,
3354                               lpfc_ncmd->dma_handle);
3355                 kfree(lpfc_ncmd);
3356                 phba->total_nvme_bufs--;
3357         }
3358         spin_unlock(&phba->nvme_buf_list_get_lock);
3359         spin_unlock_irq(&phba->hbalock);
3360 }
3361 /**
3362  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3363  * @phba: pointer to lpfc hba data structure.
3364  *
3365  * This routine first calculates the sizes of the current els and allocated
3366  * scsi sgl lists, and then goes through all sgls to updates the physical
3367  * XRIs assigned due to port function reset. During port initialization, the
3368  * current els and allocated scsi sgl lists are 0s.
3369  *
3370  * Return codes
3371  *   0 - successful (for now, it always returns 0)
3372  **/
3373 int
3374 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3375 {
3376         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3377         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3378         LIST_HEAD(els_sgl_list);
3379         int rc;
3380
3381         /*
3382          * update on pci function's els xri-sgl list
3383          */
3384         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3385
3386         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3387                 /* els xri-sgl expanded */
3388                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3389                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3390                                 "3157 ELS xri-sgl count increased from "
3391                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3392                                 els_xri_cnt);
3393                 /* allocate the additional els sgls */
3394                 for (i = 0; i < xri_cnt; i++) {
3395                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3396                                              GFP_KERNEL);
3397                         if (sglq_entry == NULL) {
3398                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3399                                                 "2562 Failure to allocate an "
3400                                                 "ELS sgl entry:%d\n", i);
3401                                 rc = -ENOMEM;
3402                                 goto out_free_mem;
3403                         }
3404                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3405                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3406                                                            &sglq_entry->phys);
3407                         if (sglq_entry->virt == NULL) {
3408                                 kfree(sglq_entry);
3409                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3410                                                 "2563 Failure to allocate an "
3411                                                 "ELS mbuf:%d\n", i);
3412                                 rc = -ENOMEM;
3413                                 goto out_free_mem;
3414                         }
3415                         sglq_entry->sgl = sglq_entry->virt;
3416                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3417                         sglq_entry->state = SGL_FREED;
3418                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3419                 }
3420                 spin_lock_irq(&phba->hbalock);
3421                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3422                 list_splice_init(&els_sgl_list,
3423                                  &phba->sli4_hba.lpfc_els_sgl_list);
3424                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3425                 spin_unlock_irq(&phba->hbalock);
3426         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3427                 /* els xri-sgl shrinked */
3428                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3429                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3430                                 "3158 ELS xri-sgl count decreased from "
3431                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3432                                 els_xri_cnt);
3433                 spin_lock_irq(&phba->hbalock);
3434                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3435                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3436                                  &els_sgl_list);
3437                 /* release extra els sgls from list */
3438                 for (i = 0; i < xri_cnt; i++) {
3439                         list_remove_head(&els_sgl_list,
3440                                          sglq_entry, struct lpfc_sglq, list);
3441                         if (sglq_entry) {
3442                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3443                                                  sglq_entry->phys);
3444                                 kfree(sglq_entry);
3445                         }
3446                 }
3447                 list_splice_init(&els_sgl_list,
3448                                  &phba->sli4_hba.lpfc_els_sgl_list);
3449                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3450                 spin_unlock_irq(&phba->hbalock);
3451         } else
3452                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3453                                 "3163 ELS xri-sgl count unchanged: %d\n",
3454                                 els_xri_cnt);
3455         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3456
3457         /* update xris to els sgls on the list */
3458         sglq_entry = NULL;
3459         sglq_entry_next = NULL;
3460         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3461                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3462                 lxri = lpfc_sli4_next_xritag(phba);
3463                 if (lxri == NO_XRI) {
3464                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3465                                         "2400 Failed to allocate xri for "
3466                                         "ELS sgl\n");
3467                         rc = -ENOMEM;
3468                         goto out_free_mem;
3469                 }
3470                 sglq_entry->sli4_lxritag = lxri;
3471                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3472         }
3473         return 0;
3474
3475 out_free_mem:
3476         lpfc_free_els_sgl_list(phba);
3477         return rc;
3478 }
3479
3480 /**
3481  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3482  * @phba: pointer to lpfc hba data structure.
3483  *
3484  * This routine first calculates the sizes of the current els and allocated
3485  * scsi sgl lists, and then goes through all sgls to updates the physical
3486  * XRIs assigned due to port function reset. During port initialization, the
3487  * current els and allocated scsi sgl lists are 0s.
3488  *
3489  * Return codes
3490  *   0 - successful (for now, it always returns 0)
3491  **/
3492 int
3493 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3494 {
3495         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3496         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3497         uint16_t nvmet_xri_cnt;
3498         LIST_HEAD(nvmet_sgl_list);
3499         int rc;
3500
3501         /*
3502          * update on pci function's nvmet xri-sgl list
3503          */
3504         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3505
3506         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3507         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3508         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3509                 /* els xri-sgl expanded */
3510                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3511                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3512                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3513                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3514                 /* allocate the additional nvmet sgls */
3515                 for (i = 0; i < xri_cnt; i++) {
3516                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3517                                              GFP_KERNEL);
3518                         if (sglq_entry == NULL) {
3519                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3520                                                 "6303 Failure to allocate an "
3521                                                 "NVMET sgl entry:%d\n", i);
3522                                 rc = -ENOMEM;
3523                                 goto out_free_mem;
3524                         }
3525                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3526                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3527                                                            &sglq_entry->phys);
3528                         if (sglq_entry->virt == NULL) {
3529                                 kfree(sglq_entry);
3530                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3531                                                 "6304 Failure to allocate an "
3532                                                 "NVMET buf:%d\n", i);
3533                                 rc = -ENOMEM;
3534                                 goto out_free_mem;
3535                         }
3536                         sglq_entry->sgl = sglq_entry->virt;
3537                         memset(sglq_entry->sgl, 0,
3538                                phba->cfg_sg_dma_buf_size);
3539                         sglq_entry->state = SGL_FREED;
3540                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3541                 }
3542                 spin_lock_irq(&phba->hbalock);
3543                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3544                 list_splice_init(&nvmet_sgl_list,
3545                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3546                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3547                 spin_unlock_irq(&phba->hbalock);
3548         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3549                 /* nvmet xri-sgl shrunk */
3550                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3551                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3552                                 "6305 NVMET xri-sgl count decreased from "
3553                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3554                                 nvmet_xri_cnt);
3555                 spin_lock_irq(&phba->hbalock);
3556                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3557                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3558                                  &nvmet_sgl_list);
3559                 /* release extra nvmet sgls from list */
3560                 for (i = 0; i < xri_cnt; i++) {
3561                         list_remove_head(&nvmet_sgl_list,
3562                                          sglq_entry, struct lpfc_sglq, list);
3563                         if (sglq_entry) {
3564                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3565                                                     sglq_entry->phys);
3566                                 kfree(sglq_entry);
3567                         }
3568                 }
3569                 list_splice_init(&nvmet_sgl_list,
3570                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3571                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3572                 spin_unlock_irq(&phba->hbalock);
3573         } else
3574                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3575                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3576                                 nvmet_xri_cnt);
3577         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3578
3579         /* update xris to nvmet sgls on the list */
3580         sglq_entry = NULL;
3581         sglq_entry_next = NULL;
3582         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3583                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3584                 lxri = lpfc_sli4_next_xritag(phba);
3585                 if (lxri == NO_XRI) {
3586                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3587                                         "6307 Failed to allocate xri for "
3588                                         "NVMET sgl\n");
3589                         rc = -ENOMEM;
3590                         goto out_free_mem;
3591                 }
3592                 sglq_entry->sli4_lxritag = lxri;
3593                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3594         }
3595         return 0;
3596
3597 out_free_mem:
3598         lpfc_free_nvmet_sgl_list(phba);
3599         return rc;
3600 }
3601
3602 /**
3603  * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping
3604  * @phba: pointer to lpfc hba data structure.
3605  *
3606  * This routine first calculates the sizes of the current els and allocated
3607  * scsi sgl lists, and then goes through all sgls to updates the physical
3608  * XRIs assigned due to port function reset. During port initialization, the
3609  * current els and allocated scsi sgl lists are 0s.
3610  *
3611  * Return codes
3612  *   0 - successful (for now, it always returns 0)
3613  **/
3614 int
3615 lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba)
3616 {
3617         struct lpfc_scsi_buf *psb, *psb_next;
3618         uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt;
3619         LIST_HEAD(scsi_sgl_list);
3620         int rc;
3621
3622         /*
3623          * update on pci function's els xri-sgl list
3624          */
3625         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3626         phba->total_scsi_bufs = 0;
3627
3628         /*
3629          * update on pci function's allocated scsi xri-sgl list
3630          */
3631         /* maximum number of xris available for scsi buffers */
3632         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3633                                       els_xri_cnt;
3634
3635         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3636                 return 0;
3637
3638         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3639                 phba->sli4_hba.scsi_xri_max =  /* Split them up */
3640                         (phba->sli4_hba.scsi_xri_max *
3641                          phba->cfg_xri_split) / 100;
3642
3643         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3644         spin_lock(&phba->scsi_buf_list_put_lock);
3645         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3646         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3647         spin_unlock(&phba->scsi_buf_list_put_lock);
3648         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3649
3650         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3651                         "6060 Current allocated SCSI xri-sgl count:%d, "
3652                         "maximum  SCSI xri count:%d (split:%d)\n",
3653                         phba->sli4_hba.scsi_xri_cnt,
3654                         phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split);
3655
3656         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3657                 /* max scsi xri shrinked below the allocated scsi buffers */
3658                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3659                                         phba->sli4_hba.scsi_xri_max;
3660                 /* release the extra allocated scsi buffers */
3661                 for (i = 0; i < scsi_xri_cnt; i++) {
3662                         list_remove_head(&scsi_sgl_list, psb,
3663                                          struct lpfc_scsi_buf, list);
3664                         if (psb) {
3665                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3666                                               psb->data, psb->dma_handle);
3667                                 kfree(psb);
3668                         }
3669                 }
3670                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3671                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3672                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3673         }
3674
3675         /* update xris associated to remaining allocated scsi buffers */
3676         psb = NULL;
3677         psb_next = NULL;
3678         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3679                 lxri = lpfc_sli4_next_xritag(phba);
3680                 if (lxri == NO_XRI) {
3681                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3682                                         "2560 Failed to allocate xri for "
3683                                         "scsi buffer\n");
3684                         rc = -ENOMEM;
3685                         goto out_free_mem;
3686                 }
3687                 psb->cur_iocbq.sli4_lxritag = lxri;
3688                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3689         }
3690         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3691         spin_lock(&phba->scsi_buf_list_put_lock);
3692         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3693         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3694         spin_unlock(&phba->scsi_buf_list_put_lock);
3695         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3696         return 0;
3697
3698 out_free_mem:
3699         lpfc_scsi_free(phba);
3700         return rc;
3701 }
3702
3703 static uint64_t
3704 lpfc_get_wwpn(struct lpfc_hba *phba)
3705 {
3706         uint64_t wwn;
3707         int rc;
3708         LPFC_MBOXQ_t *mboxq;
3709         MAILBOX_t *mb;
3710
3711         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
3712                                                 GFP_KERNEL);
3713         if (!mboxq)
3714                 return (uint64_t)-1;
3715
3716         /* First get WWN of HBA instance */
3717         lpfc_read_nv(phba, mboxq);
3718         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3719         if (rc != MBX_SUCCESS) {
3720                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3721                                 "6019 Mailbox failed , mbxCmd x%x "
3722                                 "READ_NV, mbxStatus x%x\n",
3723                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
3724                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
3725                 mempool_free(mboxq, phba->mbox_mem_pool);
3726                 return (uint64_t) -1;
3727         }
3728         mb = &mboxq->u.mb;
3729         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
3730         /* wwn is WWPN of HBA instance */
3731         mempool_free(mboxq, phba->mbox_mem_pool);
3732         if (phba->sli_rev == LPFC_SLI_REV4)
3733                 return be64_to_cpu(wwn);
3734         else
3735                 return rol64(wwn, 32);
3736 }
3737
3738 /**
3739  * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping
3740  * @phba: pointer to lpfc hba data structure.
3741  *
3742  * This routine first calculates the sizes of the current els and allocated
3743  * scsi sgl lists, and then goes through all sgls to updates the physical
3744  * XRIs assigned due to port function reset. During port initialization, the
3745  * current els and allocated scsi sgl lists are 0s.
3746  *
3747  * Return codes
3748  *   0 - successful (for now, it always returns 0)
3749  **/
3750 int
3751 lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba)
3752 {
3753         struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3754         uint16_t i, lxri, els_xri_cnt;
3755         uint16_t nvme_xri_cnt, nvme_xri_max;
3756         LIST_HEAD(nvme_sgl_list);
3757         int rc;
3758
3759         phba->total_nvme_bufs = 0;
3760
3761         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
3762                 return 0;
3763         /*
3764          * update on pci function's allocated nvme xri-sgl list
3765          */
3766
3767         /* maximum number of xris available for nvme buffers */
3768         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3769         nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3770         phba->sli4_hba.nvme_xri_max = nvme_xri_max;
3771         phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max;
3772
3773         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3774                         "6074 Current allocated NVME xri-sgl count:%d, "
3775                         "maximum  NVME xri count:%d\n",
3776                         phba->sli4_hba.nvme_xri_cnt,
3777                         phba->sli4_hba.nvme_xri_max);
3778
3779         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3780         spin_lock(&phba->nvme_buf_list_put_lock);
3781         list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list);
3782         list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list);
3783         spin_unlock(&phba->nvme_buf_list_put_lock);
3784         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3785
3786         if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) {
3787                 /* max nvme xri shrunk below the allocated nvme buffers */
3788                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3789                 nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt -
3790                                         phba->sli4_hba.nvme_xri_max;
3791                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3792                 /* release the extra allocated nvme buffers */
3793                 for (i = 0; i < nvme_xri_cnt; i++) {
3794                         list_remove_head(&nvme_sgl_list, lpfc_ncmd,
3795                                          struct lpfc_nvme_buf, list);
3796                         if (lpfc_ncmd) {
3797                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3798                                               lpfc_ncmd->data,
3799                                               lpfc_ncmd->dma_handle);
3800                                 kfree(lpfc_ncmd);
3801                         }
3802                 }
3803                 spin_lock_irq(&phba->nvme_buf_list_get_lock);
3804                 phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt;
3805                 spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3806         }
3807
3808         /* update xris associated to remaining allocated nvme buffers */
3809         lpfc_ncmd = NULL;
3810         lpfc_ncmd_next = NULL;
3811         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3812                                  &nvme_sgl_list, list) {
3813                 lxri = lpfc_sli4_next_xritag(phba);
3814                 if (lxri == NO_XRI) {
3815                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3816                                         "6075 Failed to allocate xri for "
3817                                         "nvme buffer\n");
3818                         rc = -ENOMEM;
3819                         goto out_free_mem;
3820                 }
3821                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
3822                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3823         }
3824         spin_lock_irq(&phba->nvme_buf_list_get_lock);
3825         spin_lock(&phba->nvme_buf_list_put_lock);
3826         list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get);
3827         INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
3828         spin_unlock(&phba->nvme_buf_list_put_lock);
3829         spin_unlock_irq(&phba->nvme_buf_list_get_lock);
3830         return 0;
3831
3832 out_free_mem:
3833         lpfc_nvme_free(phba);
3834         return rc;
3835 }
3836
3837 /**
3838  * lpfc_create_port - Create an FC port
3839  * @phba: pointer to lpfc hba data structure.
3840  * @instance: a unique integer ID to this FC port.
3841  * @dev: pointer to the device data structure.
3842  *
3843  * This routine creates a FC port for the upper layer protocol. The FC port
3844  * can be created on top of either a physical port or a virtual port provided
3845  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3846  * and associates the FC port created before adding the shost into the SCSI
3847  * layer.
3848  *
3849  * Return codes
3850  *   @vport - pointer to the virtual N_Port data structure.
3851  *   NULL - port create failed.
3852  **/
3853 struct lpfc_vport *
3854 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3855 {
3856         struct lpfc_vport *vport;
3857         struct Scsi_Host  *shost = NULL;
3858         int error = 0;
3859         int i;
3860         uint64_t wwn;
3861         bool use_no_reset_hba = false;
3862         int rc;
3863
3864         if (lpfc_no_hba_reset_cnt) {
3865                 if (phba->sli_rev < LPFC_SLI_REV4 &&
3866                     dev == &phba->pcidev->dev) {
3867                         /* Reset the port first */
3868                         lpfc_sli_brdrestart(phba);
3869                         rc = lpfc_sli_chipset_init(phba);
3870                         if (rc)
3871                                 return NULL;
3872                 }
3873                 wwn = lpfc_get_wwpn(phba);
3874         }
3875
3876         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
3877                 if (wwn == lpfc_no_hba_reset[i]) {
3878                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3879                                         "6020 Setting use_no_reset port=%llx\n",
3880                                         wwn);
3881                         use_no_reset_hba = true;
3882                         break;
3883                 }
3884         }
3885
3886         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
3887                 if (dev != &phba->pcidev->dev) {
3888                         shost = scsi_host_alloc(&lpfc_vport_template,
3889                                                 sizeof(struct lpfc_vport));
3890                 } else {
3891                         if (!use_no_reset_hba)
3892                                 shost = scsi_host_alloc(&lpfc_template,
3893                                                 sizeof(struct lpfc_vport));
3894                         else
3895                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
3896                                                 sizeof(struct lpfc_vport));
3897                 }
3898         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
3899                 shost = scsi_host_alloc(&lpfc_template_nvme,
3900                                         sizeof(struct lpfc_vport));
3901         }
3902         if (!shost)
3903                 goto out;
3904
3905         vport = (struct lpfc_vport *) shost->hostdata;
3906         vport->phba = phba;
3907         vport->load_flag |= FC_LOADING;
3908         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3909         vport->fc_rscn_flush = 0;
3910         lpfc_get_vport_cfgparam(vport);
3911
3912         shost->unique_id = instance;
3913         shost->max_id = LPFC_MAX_TARGET;
3914         shost->max_lun = vport->cfg_max_luns;
3915         shost->this_id = -1;
3916         shost->max_cmd_len = 16;
3917         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3918         if (phba->sli_rev == LPFC_SLI_REV4) {
3919                 shost->dma_boundary =
3920                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3921                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3922         }
3923
3924         /*
3925          * Set initial can_queue value since 0 is no longer supported and
3926          * scsi_add_host will fail. This will be adjusted later based on the
3927          * max xri value determined in hba setup.
3928          */
3929         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3930         if (dev != &phba->pcidev->dev) {
3931                 shost->transportt = lpfc_vport_transport_template;
3932                 vport->port_type = LPFC_NPIV_PORT;
3933         } else {
3934                 shost->transportt = lpfc_transport_template;
3935                 vport->port_type = LPFC_PHYSICAL_PORT;
3936         }
3937
3938         /* Initialize all internally managed lists. */
3939         INIT_LIST_HEAD(&vport->fc_nodes);
3940         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3941         spin_lock_init(&vport->work_port_lock);
3942
3943         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
3944
3945         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
3946
3947         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
3948
3949         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3950         if (error)
3951                 goto out_put_shost;
3952
3953         spin_lock_irq(&phba->hbalock);
3954         list_add_tail(&vport->listentry, &phba->port_list);
3955         spin_unlock_irq(&phba->hbalock);
3956         return vport;
3957
3958 out_put_shost:
3959         scsi_host_put(shost);
3960 out:
3961         return NULL;
3962 }
3963
3964 /**
3965  * destroy_port -  destroy an FC port
3966  * @vport: pointer to an lpfc virtual N_Port data structure.
3967  *
3968  * This routine destroys a FC port from the upper layer protocol. All the
3969  * resources associated with the port are released.
3970  **/
3971 void
3972 destroy_port(struct lpfc_vport *vport)
3973 {
3974         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3975         struct lpfc_hba  *phba = vport->phba;
3976
3977         lpfc_debugfs_terminate(vport);
3978         fc_remove_host(shost);
3979         scsi_remove_host(shost);
3980
3981         spin_lock_irq(&phba->hbalock);
3982         list_del_init(&vport->listentry);
3983         spin_unlock_irq(&phba->hbalock);
3984
3985         lpfc_cleanup(vport);
3986         return;
3987 }
3988
3989 /**
3990  * lpfc_get_instance - Get a unique integer ID
3991  *
3992  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3993  * uses the kernel idr facility to perform the task.
3994  *
3995  * Return codes:
3996  *   instance - a unique integer ID allocated as the new instance.
3997  *   -1 - lpfc get instance failed.
3998  **/
3999 int
4000 lpfc_get_instance(void)
4001 {
4002         int ret;
4003
4004         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4005         return ret < 0 ? -1 : ret;
4006 }
4007
4008 /**
4009  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4010  * @shost: pointer to SCSI host data structure.
4011  * @time: elapsed time of the scan in jiffies.
4012  *
4013  * This routine is called by the SCSI layer with a SCSI host to determine
4014  * whether the scan host is finished.
4015  *
4016  * Note: there is no scan_start function as adapter initialization will have
4017  * asynchronously kicked off the link initialization.
4018  *
4019  * Return codes
4020  *   0 - SCSI host scan is not over yet.
4021  *   1 - SCSI host scan is over.
4022  **/
4023 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4024 {
4025         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4026         struct lpfc_hba   *phba = vport->phba;
4027         int stat = 0;
4028
4029         spin_lock_irq(shost->host_lock);
4030
4031         if (vport->load_flag & FC_UNLOADING) {
4032                 stat = 1;
4033                 goto finished;
4034         }
4035         if (time >= msecs_to_jiffies(30 * 1000)) {
4036                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4037                                 "0461 Scanning longer than 30 "
4038                                 "seconds.  Continuing initialization\n");
4039                 stat = 1;
4040                 goto finished;
4041         }
4042         if (time >= msecs_to_jiffies(15 * 1000) &&
4043             phba->link_state <= LPFC_LINK_DOWN) {
4044                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4045                                 "0465 Link down longer than 15 "
4046                                 "seconds.  Continuing initialization\n");
4047                 stat = 1;
4048                 goto finished;
4049         }
4050
4051         if (vport->port_state != LPFC_VPORT_READY)
4052                 goto finished;
4053         if (vport->num_disc_nodes || vport->fc_prli_sent)
4054                 goto finished;
4055         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4056                 goto finished;
4057         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4058                 goto finished;
4059
4060         stat = 1;
4061
4062 finished:
4063         spin_unlock_irq(shost->host_lock);
4064         return stat;
4065 }
4066
4067 /**
4068  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4069  * @shost: pointer to SCSI host data structure.
4070  *
4071  * This routine initializes a given SCSI host attributes on a FC port. The
4072  * SCSI host can be either on top of a physical port or a virtual port.
4073  **/
4074 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4075 {
4076         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4077         struct lpfc_hba   *phba = vport->phba;
4078         /*
4079          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4080          */
4081
4082         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4083         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4084         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4085
4086         memset(fc_host_supported_fc4s(shost), 0,
4087                sizeof(fc_host_supported_fc4s(shost)));
4088         fc_host_supported_fc4s(shost)[2] = 1;
4089         fc_host_supported_fc4s(shost)[7] = 1;
4090
4091         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4092                                  sizeof fc_host_symbolic_name(shost));
4093
4094         fc_host_supported_speeds(shost) = 0;
4095         if (phba->lmt & LMT_32Gb)
4096                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4097         if (phba->lmt & LMT_16Gb)
4098                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4099         if (phba->lmt & LMT_10Gb)
4100                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4101         if (phba->lmt & LMT_8Gb)
4102                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4103         if (phba->lmt & LMT_4Gb)
4104                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4105         if (phba->lmt & LMT_2Gb)
4106                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4107         if (phba->lmt & LMT_1Gb)
4108                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4109
4110         fc_host_maxframe_size(shost) =
4111                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4112                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4113
4114         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4115
4116         /* This value is also unchanging */
4117         memset(fc_host_active_fc4s(shost), 0,
4118                sizeof(fc_host_active_fc4s(shost)));
4119         fc_host_active_fc4s(shost)[2] = 1;
4120         fc_host_active_fc4s(shost)[7] = 1;
4121
4122         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4123         spin_lock_irq(shost->host_lock);
4124         vport->load_flag &= ~FC_LOADING;
4125         spin_unlock_irq(shost->host_lock);
4126 }
4127
4128 /**
4129  * lpfc_stop_port_s3 - Stop SLI3 device port
4130  * @phba: pointer to lpfc hba data structure.
4131  *
4132  * This routine is invoked to stop an SLI3 device port, it stops the device
4133  * from generating interrupts and stops the device driver's timers for the
4134  * device.
4135  **/
4136 static void
4137 lpfc_stop_port_s3(struct lpfc_hba *phba)
4138 {
4139         /* Clear all interrupt enable conditions */
4140         writel(0, phba->HCregaddr);
4141         readl(phba->HCregaddr); /* flush */
4142         /* Clear all pending interrupts */
4143         writel(0xffffffff, phba->HAregaddr);
4144         readl(phba->HAregaddr); /* flush */
4145
4146         /* Reset some HBA SLI setup states */
4147         lpfc_stop_hba_timers(phba);
4148         phba->pport->work_port_events = 0;
4149 }
4150
4151 /**
4152  * lpfc_stop_port_s4 - Stop SLI4 device port
4153  * @phba: pointer to lpfc hba data structure.
4154  *
4155  * This routine is invoked to stop an SLI4 device port, it stops the device
4156  * from generating interrupts and stops the device driver's timers for the
4157  * device.
4158  **/
4159 static void
4160 lpfc_stop_port_s4(struct lpfc_hba *phba)
4161 {
4162         /* Reset some HBA SLI4 setup states */
4163         lpfc_stop_hba_timers(phba);
4164         phba->pport->work_port_events = 0;
4165         phba->sli4_hba.intr_enable = 0;
4166 }
4167
4168 /**
4169  * lpfc_stop_port - Wrapper function for stopping hba port
4170  * @phba: Pointer to HBA context object.
4171  *
4172  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4173  * the API jump table function pointer from the lpfc_hba struct.
4174  **/
4175 void
4176 lpfc_stop_port(struct lpfc_hba *phba)
4177 {
4178         phba->lpfc_stop_port(phba);
4179
4180         if (phba->wq)
4181                 flush_workqueue(phba->wq);
4182 }
4183
4184 /**
4185  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4186  * @phba: Pointer to hba for which this call is being executed.
4187  *
4188  * This routine starts the timer waiting for the FCF rediscovery to complete.
4189  **/
4190 void
4191 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4192 {
4193         unsigned long fcf_redisc_wait_tmo =
4194                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4195         /* Start fcf rediscovery wait period timer */
4196         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4197         spin_lock_irq(&phba->hbalock);
4198         /* Allow action to new fcf asynchronous event */
4199         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4200         /* Mark the FCF rediscovery pending state */
4201         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4202         spin_unlock_irq(&phba->hbalock);
4203 }
4204
4205 /**
4206  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4207  * @ptr: Map to lpfc_hba data structure pointer.
4208  *
4209  * This routine is invoked when waiting for FCF table rediscover has been
4210  * timed out. If new FCF record(s) has (have) been discovered during the
4211  * wait period, a new FCF event shall be added to the FCOE async event
4212  * list, and then worker thread shall be waked up for processing from the
4213  * worker thread context.
4214  **/
4215 static void
4216 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4217 {
4218         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4219
4220         /* Don't send FCF rediscovery event if timer cancelled */
4221         spin_lock_irq(&phba->hbalock);
4222         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4223                 spin_unlock_irq(&phba->hbalock);
4224                 return;
4225         }
4226         /* Clear FCF rediscovery timer pending flag */
4227         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4228         /* FCF rediscovery event to worker thread */
4229         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4230         spin_unlock_irq(&phba->hbalock);
4231         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4232                         "2776 FCF rediscover quiescent timer expired\n");
4233         /* wake up worker thread */
4234         lpfc_worker_wake_up(phba);
4235 }
4236
4237 /**
4238  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4239  * @phba: pointer to lpfc hba data structure.
4240  * @acqe_link: pointer to the async link completion queue entry.
4241  *
4242  * This routine is to parse the SLI4 link-attention link fault code and
4243  * translate it into the base driver's read link attention mailbox command
4244  * status.
4245  *
4246  * Return: Link-attention status in terms of base driver's coding.
4247  **/
4248 static uint16_t
4249 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4250                            struct lpfc_acqe_link *acqe_link)
4251 {
4252         uint16_t latt_fault;
4253
4254         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4255         case LPFC_ASYNC_LINK_FAULT_NONE:
4256         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4257         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4258                 latt_fault = 0;
4259                 break;
4260         default:
4261                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4262                                 "0398 Invalid link fault code: x%x\n",
4263                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4264                 latt_fault = MBXERR_ERROR;
4265                 break;
4266         }
4267         return latt_fault;
4268 }
4269
4270 /**
4271  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4272  * @phba: pointer to lpfc hba data structure.
4273  * @acqe_link: pointer to the async link completion queue entry.
4274  *
4275  * This routine is to parse the SLI4 link attention type and translate it
4276  * into the base driver's link attention type coding.
4277  *
4278  * Return: Link attention type in terms of base driver's coding.
4279  **/
4280 static uint8_t
4281 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4282                           struct lpfc_acqe_link *acqe_link)
4283 {
4284         uint8_t att_type;
4285
4286         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4287         case LPFC_ASYNC_LINK_STATUS_DOWN:
4288         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4289                 att_type = LPFC_ATT_LINK_DOWN;
4290                 break;
4291         case LPFC_ASYNC_LINK_STATUS_UP:
4292                 /* Ignore physical link up events - wait for logical link up */
4293                 att_type = LPFC_ATT_RESERVED;
4294                 break;
4295         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4296                 att_type = LPFC_ATT_LINK_UP;
4297                 break;
4298         default:
4299                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4300                                 "0399 Invalid link attention type: x%x\n",
4301                                 bf_get(lpfc_acqe_link_status, acqe_link));
4302                 att_type = LPFC_ATT_RESERVED;
4303                 break;
4304         }
4305         return att_type;
4306 }
4307
4308 /**
4309  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4310  * @phba: pointer to lpfc hba data structure.
4311  *
4312  * This routine is to get an SLI3 FC port's link speed in Mbps.
4313  *
4314  * Return: link speed in terms of Mbps.
4315  **/
4316 uint32_t
4317 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4318 {
4319         uint32_t link_speed;
4320
4321         if (!lpfc_is_link_up(phba))
4322                 return 0;
4323
4324         if (phba->sli_rev <= LPFC_SLI_REV3) {
4325                 switch (phba->fc_linkspeed) {
4326                 case LPFC_LINK_SPEED_1GHZ:
4327                         link_speed = 1000;
4328                         break;
4329                 case LPFC_LINK_SPEED_2GHZ:
4330                         link_speed = 2000;
4331                         break;
4332                 case LPFC_LINK_SPEED_4GHZ:
4333                         link_speed = 4000;
4334                         break;
4335                 case LPFC_LINK_SPEED_8GHZ:
4336                         link_speed = 8000;
4337                         break;
4338                 case LPFC_LINK_SPEED_10GHZ:
4339                         link_speed = 10000;
4340                         break;
4341                 case LPFC_LINK_SPEED_16GHZ:
4342                         link_speed = 16000;
4343                         break;
4344                 default:
4345                         link_speed = 0;
4346                 }
4347         } else {
4348                 if (phba->sli4_hba.link_state.logical_speed)
4349                         link_speed =
4350                               phba->sli4_hba.link_state.logical_speed;
4351                 else
4352                         link_speed = phba->sli4_hba.link_state.speed;
4353         }
4354         return link_speed;
4355 }
4356
4357 /**
4358  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4359  * @phba: pointer to lpfc hba data structure.
4360  * @evt_code: asynchronous event code.
4361  * @speed_code: asynchronous event link speed code.
4362  *
4363  * This routine is to parse the giving SLI4 async event link speed code into
4364  * value of Mbps for the link speed.
4365  *
4366  * Return: link speed in terms of Mbps.
4367  **/
4368 static uint32_t
4369 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4370                            uint8_t speed_code)
4371 {
4372         uint32_t port_speed;
4373
4374         switch (evt_code) {
4375         case LPFC_TRAILER_CODE_LINK:
4376                 switch (speed_code) {
4377                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4378                         port_speed = 0;
4379                         break;
4380                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4381                         port_speed = 10;
4382                         break;
4383                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4384                         port_speed = 100;
4385                         break;
4386                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4387                         port_speed = 1000;
4388                         break;
4389                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4390                         port_speed = 10000;
4391                         break;
4392                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4393                         port_speed = 20000;
4394                         break;
4395                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4396                         port_speed = 25000;
4397                         break;
4398                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4399                         port_speed = 40000;
4400                         break;
4401                 default:
4402                         port_speed = 0;
4403                 }
4404                 break;
4405         case LPFC_TRAILER_CODE_FC:
4406                 switch (speed_code) {
4407                 case LPFC_FC_LA_SPEED_UNKNOWN:
4408                         port_speed = 0;
4409                         break;
4410                 case LPFC_FC_LA_SPEED_1G:
4411                         port_speed = 1000;
4412                         break;
4413                 case LPFC_FC_LA_SPEED_2G:
4414                         port_speed = 2000;
4415                         break;
4416                 case LPFC_FC_LA_SPEED_4G:
4417                         port_speed = 4000;
4418                         break;
4419                 case LPFC_FC_LA_SPEED_8G:
4420                         port_speed = 8000;
4421                         break;
4422                 case LPFC_FC_LA_SPEED_10G:
4423                         port_speed = 10000;
4424                         break;
4425                 case LPFC_FC_LA_SPEED_16G:
4426                         port_speed = 16000;
4427                         break;
4428                 case LPFC_FC_LA_SPEED_32G:
4429                         port_speed = 32000;
4430                         break;
4431                 default:
4432                         port_speed = 0;
4433                 }
4434                 break;
4435         default:
4436                 port_speed = 0;
4437         }
4438         return port_speed;
4439 }
4440
4441 /**
4442  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4443  * @phba: pointer to lpfc hba data structure.
4444  * @acqe_link: pointer to the async link completion queue entry.
4445  *
4446  * This routine is to handle the SLI4 asynchronous FCoE link event.
4447  **/
4448 static void
4449 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4450                          struct lpfc_acqe_link *acqe_link)
4451 {
4452         struct lpfc_dmabuf *mp;
4453         LPFC_MBOXQ_t *pmb;
4454         MAILBOX_t *mb;
4455         struct lpfc_mbx_read_top *la;
4456         uint8_t att_type;
4457         int rc;
4458
4459         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4460         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4461                 return;
4462         phba->fcoe_eventtag = acqe_link->event_tag;
4463         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4464         if (!pmb) {
4465                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4466                                 "0395 The mboxq allocation failed\n");
4467                 return;
4468         }
4469         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4470         if (!mp) {
4471                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4472                                 "0396 The lpfc_dmabuf allocation failed\n");
4473                 goto out_free_pmb;
4474         }
4475         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4476         if (!mp->virt) {
4477                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4478                                 "0397 The mbuf allocation failed\n");
4479                 goto out_free_dmabuf;
4480         }
4481
4482         /* Cleanup any outstanding ELS commands */
4483         lpfc_els_flush_all_cmd(phba);
4484
4485         /* Block ELS IOCBs until we have done process link event */
4486         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4487
4488         /* Update link event statistics */
4489         phba->sli.slistat.link_event++;
4490
4491         /* Create lpfc_handle_latt mailbox command from link ACQE */
4492         lpfc_read_topology(phba, pmb, mp);
4493         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4494         pmb->vport = phba->pport;
4495
4496         /* Keep the link status for extra SLI4 state machine reference */
4497         phba->sli4_hba.link_state.speed =
4498                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4499                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4500         phba->sli4_hba.link_state.duplex =
4501                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4502         phba->sli4_hba.link_state.status =
4503                                 bf_get(lpfc_acqe_link_status, acqe_link);
4504         phba->sli4_hba.link_state.type =
4505                                 bf_get(lpfc_acqe_link_type, acqe_link);
4506         phba->sli4_hba.link_state.number =
4507                                 bf_get(lpfc_acqe_link_number, acqe_link);
4508         phba->sli4_hba.link_state.fault =
4509                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4510         phba->sli4_hba.link_state.logical_speed =
4511                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4512
4513         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4514                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4515                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4516                         "Logical speed:%dMbps Fault:%d\n",
4517                         phba->sli4_hba.link_state.speed,
4518                         phba->sli4_hba.link_state.topology,
4519                         phba->sli4_hba.link_state.status,
4520                         phba->sli4_hba.link_state.type,
4521                         phba->sli4_hba.link_state.number,
4522                         phba->sli4_hba.link_state.logical_speed,
4523                         phba->sli4_hba.link_state.fault);
4524         /*
4525          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4526          * topology info. Note: Optional for non FC-AL ports.
4527          */
4528         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4529                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4530                 if (rc == MBX_NOT_FINISHED)
4531                         goto out_free_dmabuf;
4532                 return;
4533         }
4534         /*
4535          * For FCoE Mode: fill in all the topology information we need and call
4536          * the READ_TOPOLOGY completion routine to continue without actually
4537          * sending the READ_TOPOLOGY mailbox command to the port.
4538          */
4539         /* Parse and translate status field */
4540         mb = &pmb->u.mb;
4541         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
4542
4543         /* Parse and translate link attention fields */
4544         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4545         la->eventTag = acqe_link->event_tag;
4546         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4547         bf_set(lpfc_mbx_read_top_link_spd, la,
4548                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4549
4550         /* Fake the the following irrelvant fields */
4551         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4552         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4553         bf_set(lpfc_mbx_read_top_il, la, 0);
4554         bf_set(lpfc_mbx_read_top_pb, la, 0);
4555         bf_set(lpfc_mbx_read_top_fa, la, 0);
4556         bf_set(lpfc_mbx_read_top_mm, la, 0);
4557
4558         /* Invoke the lpfc_handle_latt mailbox command callback function */
4559         lpfc_mbx_cmpl_read_topology(phba, pmb);
4560
4561         return;
4562
4563 out_free_dmabuf:
4564         kfree(mp);
4565 out_free_pmb:
4566         mempool_free(pmb, phba->mbox_mem_pool);
4567 }
4568
4569 /**
4570  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4571  * @phba: pointer to lpfc hba data structure.
4572  * @acqe_fc: pointer to the async fc completion queue entry.
4573  *
4574  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4575  * that the event was received and then issue a read_topology mailbox command so
4576  * that the rest of the driver will treat it the same as SLI3.
4577  **/
4578 static void
4579 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4580 {
4581         struct lpfc_dmabuf *mp;
4582         LPFC_MBOXQ_t *pmb;
4583         MAILBOX_t *mb;
4584         struct lpfc_mbx_read_top *la;
4585         int rc;
4586
4587         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4588             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4589                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4590                                 "2895 Non FC link Event detected.(%d)\n",
4591                                 bf_get(lpfc_trailer_type, acqe_fc));
4592                 return;
4593         }
4594         /* Keep the link status for extra SLI4 state machine reference */
4595         phba->sli4_hba.link_state.speed =
4596                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4597                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4598         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4599         phba->sli4_hba.link_state.topology =
4600                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4601         phba->sli4_hba.link_state.status =
4602                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4603         phba->sli4_hba.link_state.type =
4604                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4605         phba->sli4_hba.link_state.number =
4606                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4607         phba->sli4_hba.link_state.fault =
4608                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4609         phba->sli4_hba.link_state.logical_speed =
4610                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4611         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4612                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4613                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4614                         "%dMbps Fault:%d\n",
4615                         phba->sli4_hba.link_state.speed,
4616                         phba->sli4_hba.link_state.topology,
4617                         phba->sli4_hba.link_state.status,
4618                         phba->sli4_hba.link_state.type,
4619                         phba->sli4_hba.link_state.number,
4620                         phba->sli4_hba.link_state.logical_speed,
4621                         phba->sli4_hba.link_state.fault);
4622         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4623         if (!pmb) {
4624                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4625                                 "2897 The mboxq allocation failed\n");
4626                 return;
4627         }
4628         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4629         if (!mp) {
4630                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4631                                 "2898 The lpfc_dmabuf allocation failed\n");
4632                 goto out_free_pmb;
4633         }
4634         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4635         if (!mp->virt) {
4636                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4637                                 "2899 The mbuf allocation failed\n");
4638                 goto out_free_dmabuf;
4639         }
4640
4641         /* Cleanup any outstanding ELS commands */
4642         lpfc_els_flush_all_cmd(phba);
4643
4644         /* Block ELS IOCBs until we have done process link event */
4645         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4646
4647         /* Update link event statistics */
4648         phba->sli.slistat.link_event++;
4649
4650         /* Create lpfc_handle_latt mailbox command from link ACQE */
4651         lpfc_read_topology(phba, pmb, mp);
4652         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4653         pmb->vport = phba->pport;
4654
4655         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4656                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
4657
4658                 switch (phba->sli4_hba.link_state.status) {
4659                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
4660                         phba->link_flag |= LS_MDS_LINK_DOWN;
4661                         break;
4662                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
4663                         phba->link_flag |= LS_MDS_LOOPBACK;
4664                         break;
4665                 default:
4666                         break;
4667                 }
4668
4669                 /* Parse and translate status field */
4670                 mb = &pmb->u.mb;
4671                 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,
4672                                                            (void *)acqe_fc);
4673
4674                 /* Parse and translate link attention fields */
4675                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4676                 la->eventTag = acqe_fc->event_tag;
4677
4678                 if (phba->sli4_hba.link_state.status ==
4679                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
4680                         bf_set(lpfc_mbx_read_top_att_type, la,
4681                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
4682                 } else {
4683                         bf_set(lpfc_mbx_read_top_att_type, la,
4684                                LPFC_FC_LA_TYPE_LINK_DOWN);
4685                 }
4686                 /* Invoke the mailbox command callback function */
4687                 lpfc_mbx_cmpl_read_topology(phba, pmb);
4688
4689                 return;
4690         }
4691
4692         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4693         if (rc == MBX_NOT_FINISHED)
4694                 goto out_free_dmabuf;
4695         return;
4696
4697 out_free_dmabuf:
4698         kfree(mp);
4699 out_free_pmb:
4700         mempool_free(pmb, phba->mbox_mem_pool);
4701 }
4702
4703 /**
4704  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4705  * @phba: pointer to lpfc hba data structure.
4706  * @acqe_fc: pointer to the async SLI completion queue entry.
4707  *
4708  * This routine is to handle the SLI4 asynchronous SLI events.
4709  **/
4710 static void
4711 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4712 {
4713         char port_name;
4714         char message[128];
4715         uint8_t status;
4716         uint8_t evt_type;
4717         uint8_t operational = 0;
4718         struct temp_event temp_event_data;
4719         struct lpfc_acqe_misconfigured_event *misconfigured;
4720         struct Scsi_Host  *shost;
4721
4722         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4723
4724         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4725                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4726                         "x%08x SLI Event Type:%d\n",
4727                         acqe_sli->event_data1, acqe_sli->event_data2,
4728                         evt_type);
4729
4730         port_name = phba->Port[0];
4731         if (port_name == 0x00)
4732                 port_name = '?'; /* get port name is empty */
4733
4734         switch (evt_type) {
4735         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4736                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4737                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4738                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4739
4740                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4741                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4742                                 acqe_sli->event_data1, port_name);
4743
4744                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4745                 shost = lpfc_shost_from_vport(phba->pport);
4746                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4747                                           sizeof(temp_event_data),
4748                                           (char *)&temp_event_data,
4749                                           SCSI_NL_VID_TYPE_PCI
4750                                           | PCI_VENDOR_ID_EMULEX);
4751                 break;
4752         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4753                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4754                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4755                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4756
4757                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4758                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4759                                 acqe_sli->event_data1, port_name);
4760
4761                 shost = lpfc_shost_from_vport(phba->pport);
4762                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4763                                           sizeof(temp_event_data),
4764                                           (char *)&temp_event_data,
4765                                           SCSI_NL_VID_TYPE_PCI
4766                                           | PCI_VENDOR_ID_EMULEX);
4767                 break;
4768         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4769                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4770                                         &acqe_sli->event_data1;
4771
4772                 /* fetch the status for this port */
4773                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4774                 case LPFC_LINK_NUMBER_0:
4775                         status = bf_get(lpfc_sli_misconfigured_port0_state,
4776                                         &misconfigured->theEvent);
4777                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
4778                                         &misconfigured->theEvent);
4779                         break;
4780                 case LPFC_LINK_NUMBER_1:
4781                         status = bf_get(lpfc_sli_misconfigured_port1_state,
4782                                         &misconfigured->theEvent);
4783                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
4784                                         &misconfigured->theEvent);
4785                         break;
4786                 case LPFC_LINK_NUMBER_2:
4787                         status = bf_get(lpfc_sli_misconfigured_port2_state,
4788                                         &misconfigured->theEvent);
4789                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
4790                                         &misconfigured->theEvent);
4791                         break;
4792                 case LPFC_LINK_NUMBER_3:
4793                         status = bf_get(lpfc_sli_misconfigured_port3_state,
4794                                         &misconfigured->theEvent);
4795                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
4796                                         &misconfigured->theEvent);
4797                         break;
4798                 default:
4799                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4800                                         "3296 "
4801                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4802                                         "event: Invalid link %d",
4803                                         phba->sli4_hba.lnk_info.lnk_no);
4804                         return;
4805                 }
4806
4807                 /* Skip if optic state unchanged */
4808                 if (phba->sli4_hba.lnk_info.optic_state == status)
4809                         return;
4810
4811                 switch (status) {
4812                 case LPFC_SLI_EVENT_STATUS_VALID:
4813                         sprintf(message, "Physical Link is functional");
4814                         break;
4815                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4816                         sprintf(message, "Optics faulted/incorrectly "
4817                                 "installed/not installed - Reseat optics, "
4818                                 "if issue not resolved, replace.");
4819                         break;
4820                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4821                         sprintf(message,
4822                                 "Optics of two types installed - Remove one "
4823                                 "optic or install matching pair of optics.");
4824                         break;
4825                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4826                         sprintf(message, "Incompatible optics - Replace with "
4827                                 "compatible optics for card to function.");
4828                         break;
4829                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4830                         sprintf(message, "Unqualified optics - Replace with "
4831                                 "Avago optics for Warranty and Technical "
4832                                 "Support - Link is%s operational",
4833                                 (operational) ? " not" : "");
4834                         break;
4835                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4836                         sprintf(message, "Uncertified optics - Replace with "
4837                                 "Avago-certified optics to enable link "
4838                                 "operation - Link is%s operational",
4839                                 (operational) ? " not" : "");
4840                         break;
4841                 default:
4842                         /* firmware is reporting a status we don't know about */
4843                         sprintf(message, "Unknown event status x%02x", status);
4844                         break;
4845                 }
4846                 phba->sli4_hba.lnk_info.optic_state = status;
4847                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4848                                 "3176 Port Name %c %s\n", port_name, message);
4849                 break;
4850         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4851                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4852                                 "3192 Remote DPort Test Initiated - "
4853                                 "Event Data1:x%08x Event Data2: x%08x\n",
4854                                 acqe_sli->event_data1, acqe_sli->event_data2);
4855                 break;
4856         default:
4857                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4858                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4859                                 "x%08x SLI Event Type:%d\n",
4860                                 acqe_sli->event_data1, acqe_sli->event_data2,
4861                                 evt_type);
4862                 break;
4863         }
4864 }
4865
4866 /**
4867  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4868  * @vport: pointer to vport data structure.
4869  *
4870  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4871  * response to a CVL event.
4872  *
4873  * Return the pointer to the ndlp with the vport if successful, otherwise
4874  * return NULL.
4875  **/
4876 static struct lpfc_nodelist *
4877 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4878 {
4879         struct lpfc_nodelist *ndlp;
4880         struct Scsi_Host *shost;
4881         struct lpfc_hba *phba;
4882
4883         if (!vport)
4884                 return NULL;
4885         phba = vport->phba;
4886         if (!phba)
4887                 return NULL;
4888         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4889         if (!ndlp) {
4890                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4891                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
4892                 if (!ndlp)
4893                         return 0;
4894                 /* Set the node type */
4895                 ndlp->nlp_type |= NLP_FABRIC;
4896                 /* Put ndlp onto node list */
4897                 lpfc_enqueue_node(vport, ndlp);
4898         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4899                 /* re-setup ndlp without removing from node list */
4900                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4901                 if (!ndlp)
4902                         return 0;
4903         }
4904         if ((phba->pport->port_state < LPFC_FLOGI) &&
4905                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4906                 return NULL;
4907         /* If virtual link is not yet instantiated ignore CVL */
4908         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4909                 && (vport->port_state != LPFC_VPORT_FAILED))
4910                 return NULL;
4911         shost = lpfc_shost_from_vport(vport);
4912         if (!shost)
4913                 return NULL;
4914         lpfc_linkdown_port(vport);
4915         lpfc_cleanup_pending_mbox(vport);
4916         spin_lock_irq(shost->host_lock);
4917         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4918         spin_unlock_irq(shost->host_lock);
4919
4920         return ndlp;
4921 }
4922
4923 /**
4924  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4925  * @vport: pointer to lpfc hba data structure.
4926  *
4927  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4928  * response to a FCF dead event.
4929  **/
4930 static void
4931 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4932 {
4933         struct lpfc_vport **vports;
4934         int i;
4935
4936         vports = lpfc_create_vport_work_array(phba);
4937         if (vports)
4938                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4939                         lpfc_sli4_perform_vport_cvl(vports[i]);
4940         lpfc_destroy_vport_work_array(phba, vports);
4941 }
4942
4943 /**
4944  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4945  * @phba: pointer to lpfc hba data structure.
4946  * @acqe_link: pointer to the async fcoe completion queue entry.
4947  *
4948  * This routine is to handle the SLI4 asynchronous fcoe event.
4949  **/
4950 static void
4951 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4952                         struct lpfc_acqe_fip *acqe_fip)
4953 {
4954         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4955         int rc;
4956         struct lpfc_vport *vport;
4957         struct lpfc_nodelist *ndlp;
4958         struct Scsi_Host  *shost;
4959         int active_vlink_present;
4960         struct lpfc_vport **vports;
4961         int i;
4962
4963         phba->fc_eventTag = acqe_fip->event_tag;
4964         phba->fcoe_eventtag = acqe_fip->event_tag;
4965         switch (event_type) {
4966         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4967         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4968                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4969                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4970                                         LOG_DISCOVERY,
4971                                         "2546 New FCF event, evt_tag:x%x, "
4972                                         "index:x%x\n",
4973                                         acqe_fip->event_tag,
4974                                         acqe_fip->index);
4975                 else
4976                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4977                                         LOG_DISCOVERY,
4978                                         "2788 FCF param modified event, "
4979                                         "evt_tag:x%x, index:x%x\n",
4980                                         acqe_fip->event_tag,
4981                                         acqe_fip->index);
4982                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4983                         /*
4984                          * During period of FCF discovery, read the FCF
4985                          * table record indexed by the event to update
4986                          * FCF roundrobin failover eligible FCF bmask.
4987                          */
4988                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4989                                         LOG_DISCOVERY,
4990                                         "2779 Read FCF (x%x) for updating "
4991                                         "roundrobin FCF failover bmask\n",
4992                                         acqe_fip->index);
4993                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4994                 }
4995
4996                 /* If the FCF discovery is in progress, do nothing. */
4997                 spin_lock_irq(&phba->hbalock);
4998                 if (phba->hba_flag & FCF_TS_INPROG) {
4999                         spin_unlock_irq(&phba->hbalock);
5000                         break;
5001                 }
5002                 /* If fast FCF failover rescan event is pending, do nothing */
5003                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
5004                         spin_unlock_irq(&phba->hbalock);
5005                         break;
5006                 }
5007
5008                 /* If the FCF has been in discovered state, do nothing. */
5009                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5010                         spin_unlock_irq(&phba->hbalock);
5011                         break;
5012                 }
5013                 spin_unlock_irq(&phba->hbalock);
5014
5015                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5016                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5017                                 "2770 Start FCF table scan per async FCF "
5018                                 "event, evt_tag:x%x, index:x%x\n",
5019                                 acqe_fip->event_tag, acqe_fip->index);
5020                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5021                                                      LPFC_FCOE_FCF_GET_FIRST);
5022                 if (rc)
5023                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5024                                         "2547 Issue FCF scan read FCF mailbox "
5025                                         "command failed (x%x)\n", rc);
5026                 break;
5027
5028         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5029                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5030                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5031                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5032                         acqe_fip->event_tag);
5033                 break;
5034
5035         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5036                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5037                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5038                         "2549 FCF (x%x) disconnected from network, "
5039                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5040                 /*
5041                  * If we are in the middle of FCF failover process, clear
5042                  * the corresponding FCF bit in the roundrobin bitmap.
5043                  */
5044                 spin_lock_irq(&phba->hbalock);
5045                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5046                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5047                         spin_unlock_irq(&phba->hbalock);
5048                         /* Update FLOGI FCF failover eligible FCF bmask */
5049                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5050                         break;
5051                 }
5052                 spin_unlock_irq(&phba->hbalock);
5053
5054                 /* If the event is not for currently used fcf do nothing */
5055                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5056                         break;
5057
5058                 /*
5059                  * Otherwise, request the port to rediscover the entire FCF
5060                  * table for a fast recovery from case that the current FCF
5061                  * is no longer valid as we are not in the middle of FCF
5062                  * failover process already.
5063                  */
5064                 spin_lock_irq(&phba->hbalock);
5065                 /* Mark the fast failover process in progress */
5066                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5067                 spin_unlock_irq(&phba->hbalock);
5068
5069                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5070                                 "2771 Start FCF fast failover process due to "
5071                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5072                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5073                 rc = lpfc_sli4_redisc_fcf_table(phba);
5074                 if (rc) {
5075                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5076                                         LOG_DISCOVERY,
5077                                         "2772 Issue FCF rediscover mabilbox "
5078                                         "command failed, fail through to FCF "
5079                                         "dead event\n");
5080                         spin_lock_irq(&phba->hbalock);
5081                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5082                         spin_unlock_irq(&phba->hbalock);
5083                         /*
5084                          * Last resort will fail over by treating this
5085                          * as a link down to FCF registration.
5086                          */
5087                         lpfc_sli4_fcf_dead_failthrough(phba);
5088                 } else {
5089                         /* Reset FCF roundrobin bmask for new discovery */
5090                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5091                         /*
5092                          * Handling fast FCF failover to a DEAD FCF event is
5093                          * considered equalivant to receiving CVL to all vports.
5094                          */
5095                         lpfc_sli4_perform_all_vport_cvl(phba);
5096                 }
5097                 break;
5098         case LPFC_FIP_EVENT_TYPE_CVL:
5099                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5100                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5101                         "2718 Clear Virtual Link Received for VPI 0x%x"
5102                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5103
5104                 vport = lpfc_find_vport_by_vpid(phba,
5105                                                 acqe_fip->index);
5106                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5107                 if (!ndlp)
5108                         break;
5109                 active_vlink_present = 0;
5110
5111                 vports = lpfc_create_vport_work_array(phba);
5112                 if (vports) {
5113                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5114                                         i++) {
5115                                 if ((!(vports[i]->fc_flag &
5116                                         FC_VPORT_CVL_RCVD)) &&
5117                                         (vports[i]->port_state > LPFC_FDISC)) {
5118                                         active_vlink_present = 1;
5119                                         break;
5120                                 }
5121                         }
5122                         lpfc_destroy_vport_work_array(phba, vports);
5123                 }
5124
5125                 /*
5126                  * Don't re-instantiate if vport is marked for deletion.
5127                  * If we are here first then vport_delete is going to wait
5128                  * for discovery to complete.
5129                  */
5130                 if (!(vport->load_flag & FC_UNLOADING) &&
5131                                         active_vlink_present) {
5132                         /*
5133                          * If there are other active VLinks present,
5134                          * re-instantiate the Vlink using FDISC.
5135                          */
5136                         mod_timer(&ndlp->nlp_delayfunc,
5137                                   jiffies + msecs_to_jiffies(1000));
5138                         shost = lpfc_shost_from_vport(vport);
5139                         spin_lock_irq(shost->host_lock);
5140                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5141                         spin_unlock_irq(shost->host_lock);
5142                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5143                         vport->port_state = LPFC_FDISC;
5144                 } else {
5145                         /*
5146                          * Otherwise, we request port to rediscover
5147                          * the entire FCF table for a fast recovery
5148                          * from possible case that the current FCF
5149                          * is no longer valid if we are not already
5150                          * in the FCF failover process.
5151                          */
5152                         spin_lock_irq(&phba->hbalock);
5153                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5154                                 spin_unlock_irq(&phba->hbalock);
5155                                 break;
5156                         }
5157                         /* Mark the fast failover process in progress */
5158                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5159                         spin_unlock_irq(&phba->hbalock);
5160                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5161                                         LOG_DISCOVERY,
5162                                         "2773 Start FCF failover per CVL, "
5163                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5164                         rc = lpfc_sli4_redisc_fcf_table(phba);
5165                         if (rc) {
5166                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5167                                                 LOG_DISCOVERY,
5168                                                 "2774 Issue FCF rediscover "
5169                                                 "mabilbox command failed, "
5170                                                 "through to CVL event\n");
5171                                 spin_lock_irq(&phba->hbalock);
5172                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5173                                 spin_unlock_irq(&phba->hbalock);
5174                                 /*
5175                                  * Last resort will be re-try on the
5176                                  * the current registered FCF entry.
5177                                  */
5178                                 lpfc_retry_pport_discovery(phba);
5179                         } else
5180                                 /*
5181                                  * Reset FCF roundrobin bmask for new
5182                                  * discovery.
5183                                  */
5184                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5185                 }
5186                 break;
5187         default:
5188                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5189                         "0288 Unknown FCoE event type 0x%x event tag "
5190                         "0x%x\n", event_type, acqe_fip->event_tag);
5191                 break;
5192         }
5193 }
5194
5195 /**
5196  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5197  * @phba: pointer to lpfc hba data structure.
5198  * @acqe_link: pointer to the async dcbx completion queue entry.
5199  *
5200  * This routine is to handle the SLI4 asynchronous dcbx event.
5201  **/
5202 static void
5203 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5204                          struct lpfc_acqe_dcbx *acqe_dcbx)
5205 {
5206         phba->fc_eventTag = acqe_dcbx->event_tag;
5207         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5208                         "0290 The SLI4 DCBX asynchronous event is not "
5209                         "handled yet\n");
5210 }
5211
5212 /**
5213  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5214  * @phba: pointer to lpfc hba data structure.
5215  * @acqe_link: pointer to the async grp5 completion queue entry.
5216  *
5217  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5218  * is an asynchronous notified of a logical link speed change.  The Port
5219  * reports the logical link speed in units of 10Mbps.
5220  **/
5221 static void
5222 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5223                          struct lpfc_acqe_grp5 *acqe_grp5)
5224 {
5225         uint16_t prev_ll_spd;
5226
5227         phba->fc_eventTag = acqe_grp5->event_tag;
5228         phba->fcoe_eventtag = acqe_grp5->event_tag;
5229         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5230         phba->sli4_hba.link_state.logical_speed =
5231                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5232         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5233                         "2789 GRP5 Async Event: Updating logical link speed "
5234                         "from %dMbps to %dMbps\n", prev_ll_spd,
5235                         phba->sli4_hba.link_state.logical_speed);
5236 }
5237
5238 /**
5239  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5240  * @phba: pointer to lpfc hba data structure.
5241  *
5242  * This routine is invoked by the worker thread to process all the pending
5243  * SLI4 asynchronous events.
5244  **/
5245 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5246 {
5247         struct lpfc_cq_event *cq_event;
5248
5249         /* First, declare the async event has been handled */
5250         spin_lock_irq(&phba->hbalock);
5251         phba->hba_flag &= ~ASYNC_EVENT;
5252         spin_unlock_irq(&phba->hbalock);
5253         /* Now, handle all the async events */
5254         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5255                 /* Get the first event from the head of the event queue */
5256                 spin_lock_irq(&phba->hbalock);
5257                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5258                                  cq_event, struct lpfc_cq_event, list);
5259                 spin_unlock_irq(&phba->hbalock);
5260                 /* Process the asynchronous event */
5261                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5262                 case LPFC_TRAILER_CODE_LINK:
5263                         lpfc_sli4_async_link_evt(phba,
5264                                                  &cq_event->cqe.acqe_link);
5265                         break;
5266                 case LPFC_TRAILER_CODE_FCOE:
5267                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5268                         break;
5269                 case LPFC_TRAILER_CODE_DCBX:
5270                         lpfc_sli4_async_dcbx_evt(phba,
5271                                                  &cq_event->cqe.acqe_dcbx);
5272                         break;
5273                 case LPFC_TRAILER_CODE_GRP5:
5274                         lpfc_sli4_async_grp5_evt(phba,
5275                                                  &cq_event->cqe.acqe_grp5);
5276                         break;
5277                 case LPFC_TRAILER_CODE_FC:
5278                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5279                         break;
5280                 case LPFC_TRAILER_CODE_SLI:
5281                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5282                         break;
5283                 default:
5284                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5285                                         "1804 Invalid asynchrous event code: "
5286                                         "x%x\n", bf_get(lpfc_trailer_code,
5287                                         &cq_event->cqe.mcqe_cmpl));
5288                         break;
5289                 }
5290                 /* Free the completion event processed to the free pool */
5291                 lpfc_sli4_cq_event_release(phba, cq_event);
5292         }
5293 }
5294
5295 /**
5296  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5297  * @phba: pointer to lpfc hba data structure.
5298  *
5299  * This routine is invoked by the worker thread to process FCF table
5300  * rediscovery pending completion event.
5301  **/
5302 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5303 {
5304         int rc;
5305
5306         spin_lock_irq(&phba->hbalock);
5307         /* Clear FCF rediscovery timeout event */
5308         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5309         /* Clear driver fast failover FCF record flag */
5310         phba->fcf.failover_rec.flag = 0;
5311         /* Set state for FCF fast failover */
5312         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5313         spin_unlock_irq(&phba->hbalock);
5314
5315         /* Scan FCF table from the first entry to re-discover SAN */
5316         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5317                         "2777 Start post-quiescent FCF table scan\n");
5318         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5319         if (rc)
5320                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5321                                 "2747 Issue FCF scan read FCF mailbox "
5322                                 "command failed 0x%x\n", rc);
5323 }
5324
5325 /**
5326  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5327  * @phba: pointer to lpfc hba data structure.
5328  * @dev_grp: The HBA PCI-Device group number.
5329  *
5330  * This routine is invoked to set up the per HBA PCI-Device group function
5331  * API jump table entries.
5332  *
5333  * Return: 0 if success, otherwise -ENODEV
5334  **/
5335 int
5336 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5337 {
5338         int rc;
5339
5340         /* Set up lpfc PCI-device group */
5341         phba->pci_dev_grp = dev_grp;
5342
5343         /* The LPFC_PCI_DEV_OC uses SLI4 */
5344         if (dev_grp == LPFC_PCI_DEV_OC)
5345                 phba->sli_rev = LPFC_SLI_REV4;
5346
5347         /* Set up device INIT API function jump table */
5348         rc = lpfc_init_api_table_setup(phba, dev_grp);
5349         if (rc)
5350                 return -ENODEV;
5351         /* Set up SCSI API function jump table */
5352         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5353         if (rc)
5354                 return -ENODEV;
5355         /* Set up SLI API function jump table */
5356         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5357         if (rc)
5358                 return -ENODEV;
5359         /* Set up MBOX API function jump table */
5360         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5361         if (rc)
5362                 return -ENODEV;
5363
5364         return 0;
5365 }
5366
5367 /**
5368  * lpfc_log_intr_mode - Log the active interrupt mode
5369  * @phba: pointer to lpfc hba data structure.
5370  * @intr_mode: active interrupt mode adopted.
5371  *
5372  * This routine it invoked to log the currently used active interrupt mode
5373  * to the device.
5374  **/
5375 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5376 {
5377         switch (intr_mode) {
5378         case 0:
5379                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5380                                 "0470 Enable INTx interrupt mode.\n");
5381                 break;
5382         case 1:
5383                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5384                                 "0481 Enabled MSI interrupt mode.\n");
5385                 break;
5386         case 2:
5387                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5388                                 "0480 Enabled MSI-X interrupt mode.\n");
5389                 break;
5390         default:
5391                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5392                                 "0482 Illegal interrupt mode.\n");
5393                 break;
5394         }
5395         return;
5396 }
5397
5398 /**
5399  * lpfc_enable_pci_dev - Enable a generic PCI device.
5400  * @phba: pointer to lpfc hba data structure.
5401  *
5402  * This routine is invoked to enable the PCI device that is common to all
5403  * PCI devices.
5404  *
5405  * Return codes
5406  *      0 - successful
5407  *      other values - error
5408  **/
5409 static int
5410 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5411 {
5412         struct pci_dev *pdev;
5413
5414         /* Obtain PCI device reference */
5415         if (!phba->pcidev)
5416                 goto out_error;
5417         else
5418                 pdev = phba->pcidev;
5419         /* Enable PCI device */
5420         if (pci_enable_device_mem(pdev))
5421                 goto out_error;
5422         /* Request PCI resource for the device */
5423         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5424                 goto out_disable_device;
5425         /* Set up device as PCI master and save state for EEH */
5426         pci_set_master(pdev);
5427         pci_try_set_mwi(pdev);
5428         pci_save_state(pdev);
5429
5430         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5431         if (pci_is_pcie(pdev))
5432                 pdev->needs_freset = 1;
5433
5434         return 0;
5435
5436 out_disable_device:
5437         pci_disable_device(pdev);
5438 out_error:
5439         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5440                         "1401 Failed to enable pci device\n");
5441         return -ENODEV;
5442 }
5443
5444 /**
5445  * lpfc_disable_pci_dev - Disable a generic PCI device.
5446  * @phba: pointer to lpfc hba data structure.
5447  *
5448  * This routine is invoked to disable the PCI device that is common to all
5449  * PCI devices.
5450  **/
5451 static void
5452 lpfc_disable_pci_dev(struct lpfc_hba *phba)
5453 {
5454         struct pci_dev *pdev;
5455
5456         /* Obtain PCI device reference */
5457         if (!phba->pcidev)
5458                 return;
5459         else
5460                 pdev = phba->pcidev;
5461         /* Release PCI resource and disable PCI device */
5462         pci_release_mem_regions(pdev);
5463         pci_disable_device(pdev);
5464
5465         return;
5466 }
5467
5468 /**
5469  * lpfc_reset_hba - Reset a hba
5470  * @phba: pointer to lpfc hba data structure.
5471  *
5472  * This routine is invoked to reset a hba device. It brings the HBA
5473  * offline, performs a board restart, and then brings the board back
5474  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
5475  * on outstanding mailbox commands.
5476  **/
5477 void
5478 lpfc_reset_hba(struct lpfc_hba *phba)
5479 {
5480         /* If resets are disabled then set error state and return. */
5481         if (!phba->cfg_enable_hba_reset) {
5482                 phba->link_state = LPFC_HBA_ERROR;
5483                 return;
5484         }
5485         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
5486                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
5487         else
5488                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
5489         lpfc_offline(phba);
5490         lpfc_sli_brdrestart(phba);
5491         lpfc_online(phba);
5492         lpfc_unblock_mgmt_io(phba);
5493 }
5494
5495 /**
5496  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
5497  * @phba: pointer to lpfc hba data structure.
5498  *
5499  * This function enables the PCI SR-IOV virtual functions to a physical
5500  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5501  * enable the number of virtual functions to the physical function. As
5502  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5503  * API call does not considered as an error condition for most of the device.
5504  **/
5505 uint16_t
5506 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
5507 {
5508         struct pci_dev *pdev = phba->pcidev;
5509         uint16_t nr_virtfn;
5510         int pos;
5511
5512         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
5513         if (pos == 0)
5514                 return 0;
5515
5516         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
5517         return nr_virtfn;
5518 }
5519
5520 /**
5521  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
5522  * @phba: pointer to lpfc hba data structure.
5523  * @nr_vfn: number of virtual functions to be enabled.
5524  *
5525  * This function enables the PCI SR-IOV virtual functions to a physical
5526  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
5527  * enable the number of virtual functions to the physical function. As
5528  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
5529  * API call does not considered as an error condition for most of the device.
5530  **/
5531 int
5532 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
5533 {
5534         struct pci_dev *pdev = phba->pcidev;
5535         uint16_t max_nr_vfn;
5536         int rc;
5537
5538         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
5539         if (nr_vfn > max_nr_vfn) {
5540                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5541                                 "3057 Requested vfs (%d) greater than "
5542                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
5543                 return -EINVAL;
5544         }
5545
5546         rc = pci_enable_sriov(pdev, nr_vfn);
5547         if (rc) {
5548                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5549                                 "2806 Failed to enable sriov on this device "
5550                                 "with vfn number nr_vf:%d, rc:%d\n",
5551                                 nr_vfn, rc);
5552         } else
5553                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5554                                 "2807 Successful enable sriov on this device "
5555                                 "with vfn number nr_vf:%d\n", nr_vfn);
5556         return rc;
5557 }
5558
5559 /**
5560  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5561  * @phba: pointer to lpfc hba data structure.
5562  *
5563  * This routine is invoked to set up the driver internal resources before the
5564  * device specific resource setup to support the HBA device it attached to.
5565  *
5566  * Return codes
5567  *      0 - successful
5568  *      other values - error
5569  **/
5570 static int
5571 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5572 {
5573         struct lpfc_sli *psli = &phba->sli;
5574
5575         /*
5576          * Driver resources common to all SLI revisions
5577          */
5578         atomic_set(&phba->fast_event_count, 0);
5579         spin_lock_init(&phba->hbalock);
5580
5581         /* Initialize ndlp management spinlock */
5582         spin_lock_init(&phba->ndlp_lock);
5583
5584         INIT_LIST_HEAD(&phba->port_list);
5585         INIT_LIST_HEAD(&phba->work_list);
5586         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5587
5588         /* Initialize the wait queue head for the kernel thread */
5589         init_waitqueue_head(&phba->work_waitq);
5590
5591         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5592                         "1403 Protocols supported %s %s %s\n",
5593                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
5594                                 "SCSI" : " "),
5595                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
5596                                 "NVME" : " "),
5597                         (phba->nvmet_support ? "NVMET" : " "));
5598
5599         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5600                 /* Initialize the scsi buffer list used by driver for scsi IO */
5601                 spin_lock_init(&phba->scsi_buf_list_get_lock);
5602                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5603                 spin_lock_init(&phba->scsi_buf_list_put_lock);
5604                 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5605         }
5606
5607         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
5608                 (phba->nvmet_support == 0)) {
5609                 /* Initialize the NVME buffer list used by driver for NVME IO */
5610                 spin_lock_init(&phba->nvme_buf_list_get_lock);
5611                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get);
5612                 spin_lock_init(&phba->nvme_buf_list_put_lock);
5613                 INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put);
5614         }
5615
5616         /* Initialize the fabric iocb list */
5617         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5618
5619         /* Initialize list to save ELS buffers */
5620         INIT_LIST_HEAD(&phba->elsbuf);
5621
5622         /* Initialize FCF connection rec list */
5623         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5624
5625         /* Initialize OAS configuration list */
5626         spin_lock_init(&phba->devicelock);
5627         INIT_LIST_HEAD(&phba->luns);
5628
5629         /* MBOX heartbeat timer */
5630         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
5631         /* Fabric block timer */
5632         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
5633         /* EA polling mode timer */
5634         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
5635         /* Heartbeat timer */
5636         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
5637
5638         return 0;
5639 }
5640
5641 /**
5642  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
5643  * @phba: pointer to lpfc hba data structure.
5644  *
5645  * This routine is invoked to set up the driver internal resources specific to
5646  * support the SLI-3 HBA device it attached to.
5647  *
5648  * Return codes
5649  * 0 - successful
5650  * other values - error
5651  **/
5652 static int
5653 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5654 {
5655         int rc;
5656
5657         /*
5658          * Initialize timers used by driver
5659          */
5660
5661         /* FCP polling mode timer */
5662         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
5663
5664         /* Host attention work mask setup */
5665         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5666         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5667
5668         /* Get all the module params for configuring this host */
5669         lpfc_get_cfgparam(phba);
5670         /* Set up phase-1 common device driver resources */
5671
5672         rc = lpfc_setup_driver_resource_phase1(phba);
5673         if (rc)
5674                 return -ENODEV;
5675
5676         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5677                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5678                 /* check for menlo minimum sg count */
5679                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5680                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5681         }
5682
5683         if (!phba->sli.sli3_ring)
5684                 phba->sli.sli3_ring = kzalloc(LPFC_SLI3_MAX_RING *
5685                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5686         if (!phba->sli.sli3_ring)
5687                 return -ENOMEM;
5688
5689         /*
5690          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5691          * used to create the sg_dma_buf_pool must be dynamically calculated.
5692          */
5693
5694         /* Initialize the host templates the configured values. */
5695         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5696         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5697         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5698
5699         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5700         if (phba->cfg_enable_bg) {
5701                 /*
5702                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5703                  * the FCP rsp, and a BDE for each. Sice we have no control
5704                  * over how many protection data segments the SCSI Layer
5705                  * will hand us (ie: there could be one for every block
5706                  * in the IO), we just allocate enough BDEs to accomidate
5707                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5708                  * minimize the risk of running out.
5709                  */
5710                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5711                         sizeof(struct fcp_rsp) +
5712                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5713
5714                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5715                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5716
5717                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5718                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5719         } else {
5720                 /*
5721                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5722                  * the FCP rsp, a BDE for each, and a BDE for up to
5723                  * cfg_sg_seg_cnt data segments.
5724                  */
5725                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5726                         sizeof(struct fcp_rsp) +
5727                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5728
5729                 /* Total BDEs in BPL for scsi_sg_list */
5730                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5731         }
5732
5733         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5734                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5735                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5736                         phba->cfg_total_seg_cnt);
5737
5738         phba->max_vpi = LPFC_MAX_VPI;
5739         /* This will be set to correct value after config_port mbox */
5740         phba->max_vports = 0;
5741
5742         /*
5743          * Initialize the SLI Layer to run with lpfc HBAs.
5744          */
5745         lpfc_sli_setup(phba);
5746         lpfc_sli_queue_init(phba);
5747
5748         /* Allocate device driver memory */
5749         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5750                 return -ENOMEM;
5751
5752         /*
5753          * Enable sr-iov virtual functions if supported and configured
5754          * through the module parameter.
5755          */
5756         if (phba->cfg_sriov_nr_virtfn > 0) {
5757                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5758                                                  phba->cfg_sriov_nr_virtfn);
5759                 if (rc) {
5760                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5761                                         "2808 Requested number of SR-IOV "
5762                                         "virtual functions (%d) is not "
5763                                         "supported\n",
5764                                         phba->cfg_sriov_nr_virtfn);
5765                         phba->cfg_sriov_nr_virtfn = 0;
5766                 }
5767         }
5768
5769         return 0;
5770 }
5771
5772 /**
5773  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5774  * @phba: pointer to lpfc hba data structure.
5775  *
5776  * This routine is invoked to unset the driver internal resources set up
5777  * specific for supporting the SLI-3 HBA device it attached to.
5778  **/
5779 static void
5780 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5781 {
5782         /* Free device driver memory allocated */
5783         lpfc_mem_free_all(phba);
5784
5785         return;
5786 }
5787
5788 /**
5789  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5790  * @phba: pointer to lpfc hba data structure.
5791  *
5792  * This routine is invoked to set up the driver internal resources specific to
5793  * support the SLI-4 HBA device it attached to.
5794  *
5795  * Return codes
5796  *      0 - successful
5797  *      other values - error
5798  **/
5799 static int
5800 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5801 {
5802         LPFC_MBOXQ_t *mboxq;
5803         MAILBOX_t *mb;
5804         int rc, i, max_buf_size;
5805         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5806         struct lpfc_mqe *mqe;
5807         int longs;
5808         int fof_vectors = 0;
5809         uint64_t wwn;
5810
5811         phba->sli4_hba.num_online_cpu = num_online_cpus();
5812         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
5813         phba->sli4_hba.curr_disp_cpu = 0;
5814
5815         /* Get all the module params for configuring this host */
5816         lpfc_get_cfgparam(phba);
5817
5818         /* Set up phase-1 common device driver resources */
5819         rc = lpfc_setup_driver_resource_phase1(phba);
5820         if (rc)
5821                 return -ENODEV;
5822
5823         /* Before proceed, wait for POST done and device ready */
5824         rc = lpfc_sli4_post_status_check(phba);
5825         if (rc)
5826                 return -ENODEV;
5827
5828         /*
5829          * Initialize timers used by driver
5830          */
5831
5832         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
5833
5834         /* FCF rediscover timer */
5835         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
5836
5837         /*
5838          * Control structure for handling external multi-buffer mailbox
5839          * command pass-through.
5840          */
5841         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5842                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5843         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5844
5845         phba->max_vpi = LPFC_MAX_VPI;
5846
5847         /* This will be set to correct value after the read_config mbox */
5848         phba->max_vports = 0;
5849
5850         /* Program the default value of vlan_id and fc_map */
5851         phba->valid_vlan = 0;
5852         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5853         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5854         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5855
5856         /*
5857          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5858          * we will associate a new ring, for each EQ/CQ/WQ tuple.
5859          * The WQ create will allocate the ring.
5860          */
5861
5862         /*
5863          * It doesn't matter what family our adapter is in, we are
5864          * limited to 2 Pages, 512 SGEs, for our SGL.
5865          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5866          */
5867         max_buf_size = (2 * SLI4_PAGE_SIZE);
5868         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5869                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5870
5871         /*
5872          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
5873          * used to create the sg_dma_buf_pool must be calculated.
5874          */
5875         if (phba->cfg_enable_bg) {
5876                 /*
5877                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
5878                  * the FCP rsp, and a SGE. Sice we have no control
5879                  * over how many protection segments the SCSI Layer
5880                  * will hand us (ie: there could be one for every block
5881                  * in the IO), just allocate enough SGEs to accomidate
5882                  * our max amount and we need to limit lpfc_sg_seg_cnt
5883                  * to minimize the risk of running out.
5884                  */
5885                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5886                                 sizeof(struct fcp_rsp) + max_buf_size;
5887
5888                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5889                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5890
5891                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5892                         phba->cfg_sg_seg_cnt =
5893                                 LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5894         } else {
5895                 /*
5896                  * The scsi_buf for a regular I/O holds the FCP cmnd,
5897                  * the FCP rsp, a SGE for each, and a SGE for up to
5898                  * cfg_sg_seg_cnt data segments.
5899                  */
5900                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5901                                 sizeof(struct fcp_rsp) +
5902                                 ((phba->cfg_sg_seg_cnt + 2) *
5903                                 sizeof(struct sli4_sge));
5904
5905                 /* Total SGEs for scsi_sg_list */
5906                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5907
5908                 /*
5909                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only
5910                  * need to post 1 page for the SGL.
5911                  */
5912         }
5913
5914         /* Initialize the host templates with the updated values. */
5915         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5916         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5917         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
5918
5919         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5920                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5921         else
5922                 phba->cfg_sg_dma_buf_size =
5923                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5924
5925         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5926                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5927                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5928                         phba->cfg_total_seg_cnt);
5929
5930         /* Initialize buffer queue management fields */
5931         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
5932         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5933         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5934
5935         /*
5936          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5937          */
5938         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
5939                 /* Initialize the Abort scsi buffer list used by driver */
5940                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5941                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5942         }
5943
5944         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
5945                 /* Initialize the Abort nvme buffer list used by driver */
5946                 spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock);
5947                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
5948                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
5949                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
5950
5951                 /* Fast-path XRI aborted CQ Event work queue list */
5952                 INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
5953         }
5954
5955         /* This abort list used by worker thread */
5956         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
5957         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
5958
5959         /*
5960          * Initialize driver internal slow-path work queues
5961          */
5962
5963         /* Driver internel slow-path CQ Event pool */
5964         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5965         /* Response IOCB work queue list */
5966         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5967         /* Asynchronous event CQ Event work queue list */
5968         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5969         /* Fast-path XRI aborted CQ Event work queue list */
5970         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5971         /* Slow-path XRI aborted CQ Event work queue list */
5972         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5973         /* Receive queue CQ Event work queue list */
5974         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5975
5976         /* Initialize extent block lists. */
5977         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5978         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5979         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5980         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5981
5982         /* Initialize mboxq lists. If the early init routines fail
5983          * these lists need to be correctly initialized.
5984          */
5985         INIT_LIST_HEAD(&phba->sli.mboxq);
5986         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
5987
5988         /* initialize optic_state to 0xFF */
5989         phba->sli4_hba.lnk_info.optic_state = 0xff;
5990
5991         /* Allocate device driver memory */
5992         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5993         if (rc)
5994                 return -ENOMEM;
5995
5996         /* IF Type 2 ports get initialized now. */
5997         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5998             LPFC_SLI_INTF_IF_TYPE_2) {
5999                 rc = lpfc_pci_function_reset(phba);
6000                 if (unlikely(rc)) {
6001                         rc = -ENODEV;
6002                         goto out_free_mem;
6003                 }
6004                 phba->temp_sensor_support = 1;
6005         }
6006
6007         /* Create the bootstrap mailbox command */
6008         rc = lpfc_create_bootstrap_mbox(phba);
6009         if (unlikely(rc))
6010                 goto out_free_mem;
6011
6012         /* Set up the host's endian order with the device. */
6013         rc = lpfc_setup_endian_order(phba);
6014         if (unlikely(rc))
6015                 goto out_free_bsmbx;
6016
6017         /* Set up the hba's configuration parameters. */
6018         rc = lpfc_sli4_read_config(phba);
6019         if (unlikely(rc))
6020                 goto out_free_bsmbx;
6021         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6022         if (unlikely(rc))
6023                 goto out_free_bsmbx;
6024
6025         /* IF Type 0 ports get initialized now. */
6026         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6027             LPFC_SLI_INTF_IF_TYPE_0) {
6028                 rc = lpfc_pci_function_reset(phba);
6029                 if (unlikely(rc))
6030                         goto out_free_bsmbx;
6031         }
6032
6033         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6034                                                        GFP_KERNEL);
6035         if (!mboxq) {
6036                 rc = -ENOMEM;
6037                 goto out_free_bsmbx;
6038         }
6039
6040         /* Check for NVMET being configured */
6041         phba->nvmet_support = 0;
6042         if (lpfc_enable_nvmet_cnt) {
6043
6044                 /* First get WWN of HBA instance */
6045                 lpfc_read_nv(phba, mboxq);
6046                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6047                 if (rc != MBX_SUCCESS) {
6048                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6049                                         "6016 Mailbox failed , mbxCmd x%x "
6050                                         "READ_NV, mbxStatus x%x\n",
6051                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6052                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6053                         mempool_free(mboxq, phba->mbox_mem_pool);
6054                         rc = -EIO;
6055                         goto out_free_bsmbx;
6056                 }
6057                 mb = &mboxq->u.mb;
6058                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6059                        sizeof(uint64_t));
6060                 wwn = cpu_to_be64(wwn);
6061                 phba->sli4_hba.wwnn.u.name = wwn;
6062                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6063                        sizeof(uint64_t));
6064                 /* wwn is WWPN of HBA instance */
6065                 wwn = cpu_to_be64(wwn);
6066                 phba->sli4_hba.wwpn.u.name = wwn;
6067
6068                 /* Check to see if it matches any module parameter */
6069                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6070                         if (wwn == lpfc_enable_nvmet[i]) {
6071 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6072                                 if (lpfc_nvmet_mem_alloc(phba))
6073                                         break;
6074
6075                                 phba->nvmet_support = 1; /* a match */
6076
6077                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6078                                                 "6017 NVME Target %016llx\n",
6079                                                 wwn);
6080 #else
6081                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6082                                                 "6021 Can't enable NVME Target."
6083                                                 " NVME_TARGET_FC infrastructure"
6084                                                 " is not in kernel\n");
6085 #endif
6086                                 break;
6087                         }
6088                 }
6089         }
6090
6091         lpfc_nvme_mod_param_dep(phba);
6092
6093         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6094         lpfc_supported_pages(mboxq);
6095         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6096         if (!rc) {
6097                 mqe = &mboxq->u.mqe;
6098                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6099                        LPFC_MAX_SUPPORTED_PAGES);
6100                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6101                         switch (pn_page[i]) {
6102                         case LPFC_SLI4_PARAMETERS:
6103                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6104                                 break;
6105                         default:
6106                                 break;
6107                         }
6108                 }
6109                 /* Read the port's SLI4 Parameters capabilities if supported. */
6110                 if (phba->sli4_hba.pc_sli4_params.supported)
6111                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6112                 if (rc) {
6113                         mempool_free(mboxq, phba->mbox_mem_pool);
6114                         rc = -EIO;
6115                         goto out_free_bsmbx;
6116                 }
6117         }
6118
6119         /*
6120          * Get sli4 parameters that override parameters from Port capabilities.
6121          * If this call fails, it isn't critical unless the SLI4 parameters come
6122          * back in conflict.
6123          */
6124         rc = lpfc_get_sli4_parameters(phba, mboxq);
6125         if (rc) {
6126                 if (phba->sli4_hba.extents_in_use &&
6127                     phba->sli4_hba.rpi_hdrs_in_use) {
6128                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6129                                 "2999 Unsupported SLI4 Parameters "
6130                                 "Extents and RPI headers enabled.\n");
6131                 }
6132                 mempool_free(mboxq, phba->mbox_mem_pool);
6133                 rc = -EIO;
6134                 goto out_free_bsmbx;
6135         }
6136
6137         mempool_free(mboxq, phba->mbox_mem_pool);
6138
6139         /* Verify OAS is supported */
6140         lpfc_sli4_oas_verify(phba);
6141         if (phba->cfg_fof)
6142                 fof_vectors = 1;
6143
6144         /* Verify all the SLI4 queues */
6145         rc = lpfc_sli4_queue_verify(phba);
6146         if (rc)
6147                 goto out_free_bsmbx;
6148
6149         /* Create driver internal CQE event pool */
6150         rc = lpfc_sli4_cq_event_pool_create(phba);
6151         if (rc)
6152                 goto out_free_bsmbx;
6153
6154         /* Initialize sgl lists per host */
6155         lpfc_init_sgl_list(phba);
6156
6157         /* Allocate and initialize active sgl array */
6158         rc = lpfc_init_active_sgl_array(phba);
6159         if (rc) {
6160                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6161                                 "1430 Failed to initialize sgl list.\n");
6162                 goto out_destroy_cq_event_pool;
6163         }
6164         rc = lpfc_sli4_init_rpi_hdrs(phba);
6165         if (rc) {
6166                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6167                                 "1432 Failed to initialize rpi headers.\n");
6168                 goto out_free_active_sgl;
6169         }
6170
6171         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6172         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6173         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
6174                                          GFP_KERNEL);
6175         if (!phba->fcf.fcf_rr_bmask) {
6176                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6177                                 "2759 Failed allocate memory for FCF round "
6178                                 "robin failover bmask\n");
6179                 rc = -ENOMEM;
6180                 goto out_remove_rpi_hdrs;
6181         }
6182
6183         phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs,
6184                                                 sizeof(struct lpfc_hba_eq_hdl),
6185                                                 GFP_KERNEL);
6186         if (!phba->sli4_hba.hba_eq_hdl) {
6187                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6188                                 "2572 Failed allocate memory for "
6189                                 "fast-path per-EQ handle array\n");
6190                 rc = -ENOMEM;
6191                 goto out_free_fcf_rr_bmask;
6192         }
6193
6194         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu,
6195                                         sizeof(struct lpfc_vector_map_info),
6196                                         GFP_KERNEL);
6197         if (!phba->sli4_hba.cpu_map) {
6198                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6199                                 "3327 Failed allocate memory for msi-x "
6200                                 "interrupt vector mapping\n");
6201                 rc = -ENOMEM;
6202                 goto out_free_hba_eq_hdl;
6203         }
6204         if (lpfc_used_cpu == NULL) {
6205                 lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t),
6206                                                 GFP_KERNEL);
6207                 if (!lpfc_used_cpu) {
6208                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6209                                         "3335 Failed allocate memory for msi-x "
6210                                         "interrupt vector mapping\n");
6211                         kfree(phba->sli4_hba.cpu_map);
6212                         rc = -ENOMEM;
6213                         goto out_free_hba_eq_hdl;
6214                 }
6215                 for (i = 0; i < lpfc_present_cpu; i++)
6216                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
6217         }
6218
6219         /*
6220          * Enable sr-iov virtual functions if supported and configured
6221          * through the module parameter.
6222          */
6223         if (phba->cfg_sriov_nr_virtfn > 0) {
6224                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6225                                                  phba->cfg_sriov_nr_virtfn);
6226                 if (rc) {
6227                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6228                                         "3020 Requested number of SR-IOV "
6229                                         "virtual functions (%d) is not "
6230                                         "supported\n",
6231                                         phba->cfg_sriov_nr_virtfn);
6232                         phba->cfg_sriov_nr_virtfn = 0;
6233                 }
6234         }
6235
6236         return 0;
6237
6238 out_free_hba_eq_hdl:
6239         kfree(phba->sli4_hba.hba_eq_hdl);
6240 out_free_fcf_rr_bmask:
6241         kfree(phba->fcf.fcf_rr_bmask);
6242 out_remove_rpi_hdrs:
6243         lpfc_sli4_remove_rpi_hdrs(phba);
6244 out_free_active_sgl:
6245         lpfc_free_active_sgl(phba);
6246 out_destroy_cq_event_pool:
6247         lpfc_sli4_cq_event_pool_destroy(phba);
6248 out_free_bsmbx:
6249         lpfc_destroy_bootstrap_mbox(phba);
6250 out_free_mem:
6251         lpfc_mem_free(phba);
6252         return rc;
6253 }
6254
6255 /**
6256  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6257  * @phba: pointer to lpfc hba data structure.
6258  *
6259  * This routine is invoked to unset the driver internal resources set up
6260  * specific for supporting the SLI-4 HBA device it attached to.
6261  **/
6262 static void
6263 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6264 {
6265         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6266
6267         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6268         kfree(phba->sli4_hba.cpu_map);
6269         phba->sli4_hba.num_present_cpu = 0;
6270         phba->sli4_hba.num_online_cpu = 0;
6271         phba->sli4_hba.curr_disp_cpu = 0;
6272
6273         /* Free memory allocated for fast-path work queue handles */
6274         kfree(phba->sli4_hba.hba_eq_hdl);
6275
6276         /* Free the allocated rpi headers. */
6277         lpfc_sli4_remove_rpi_hdrs(phba);
6278         lpfc_sli4_remove_rpis(phba);
6279
6280         /* Free eligible FCF index bmask */
6281         kfree(phba->fcf.fcf_rr_bmask);
6282
6283         /* Free the ELS sgl list */
6284         lpfc_free_active_sgl(phba);
6285         lpfc_free_els_sgl_list(phba);
6286         lpfc_free_nvmet_sgl_list(phba);
6287
6288         /* Free the completion queue EQ event pool */
6289         lpfc_sli4_cq_event_release_all(phba);
6290         lpfc_sli4_cq_event_pool_destroy(phba);
6291
6292         /* Release resource identifiers. */
6293         lpfc_sli4_dealloc_resource_identifiers(phba);
6294
6295         /* Free the bsmbx region. */
6296         lpfc_destroy_bootstrap_mbox(phba);
6297
6298         /* Free the SLI Layer memory with SLI4 HBAs */
6299         lpfc_mem_free_all(phba);
6300
6301         /* Free the current connect table */
6302         list_for_each_entry_safe(conn_entry, next_conn_entry,
6303                 &phba->fcf_conn_rec_list, list) {
6304                 list_del_init(&conn_entry->list);
6305                 kfree(conn_entry);
6306         }
6307
6308         return;
6309 }
6310
6311 /**
6312  * lpfc_init_api_table_setup - Set up init api function jump table
6313  * @phba: The hba struct for which this call is being executed.
6314  * @dev_grp: The HBA PCI-Device group number.
6315  *
6316  * This routine sets up the device INIT interface API function jump table
6317  * in @phba struct.
6318  *
6319  * Returns: 0 - success, -ENODEV - failure.
6320  **/
6321 int
6322 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6323 {
6324         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6325         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6326         phba->lpfc_selective_reset = lpfc_selective_reset;
6327         switch (dev_grp) {
6328         case LPFC_PCI_DEV_LP:
6329                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6330                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6331                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6332                 break;
6333         case LPFC_PCI_DEV_OC:
6334                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6335                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6336                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6337                 break;
6338         default:
6339                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6340                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6341                                 dev_grp);
6342                 return -ENODEV;
6343                 break;
6344         }
6345         return 0;
6346 }
6347
6348 /**
6349  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6350  * @phba: pointer to lpfc hba data structure.
6351  *
6352  * This routine is invoked to set up the driver internal resources after the
6353  * device specific resource setup to support the HBA device it attached to.
6354  *
6355  * Return codes
6356  *      0 - successful
6357  *      other values - error
6358  **/
6359 static int
6360 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6361 {
6362         int error;
6363
6364         /* Startup the kernel thread for this host adapter. */
6365         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6366                                           "lpfc_worker_%d", phba->brd_no);
6367         if (IS_ERR(phba->worker_thread)) {
6368                 error = PTR_ERR(phba->worker_thread);
6369                 return error;
6370         }
6371
6372         /* workqueue for deferred irq use */
6373         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6374
6375         return 0;
6376 }
6377
6378 /**
6379  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6380  * @phba: pointer to lpfc hba data structure.
6381  *
6382  * This routine is invoked to unset the driver internal resources set up after
6383  * the device specific resource setup for supporting the HBA device it
6384  * attached to.
6385  **/
6386 static void
6387 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6388 {
6389         if (phba->wq) {
6390                 flush_workqueue(phba->wq);
6391                 destroy_workqueue(phba->wq);
6392                 phba->wq = NULL;
6393         }
6394
6395         /* Stop kernel worker thread */
6396         kthread_stop(phba->worker_thread);
6397 }
6398
6399 /**
6400  * lpfc_free_iocb_list - Free iocb list.
6401  * @phba: pointer to lpfc hba data structure.
6402  *
6403  * This routine is invoked to free the driver's IOCB list and memory.
6404  **/
6405 void
6406 lpfc_free_iocb_list(struct lpfc_hba *phba)
6407 {
6408         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
6409
6410         spin_lock_irq(&phba->hbalock);
6411         list_for_each_entry_safe(iocbq_entry, iocbq_next,
6412                                  &phba->lpfc_iocb_list, list) {
6413                 list_del(&iocbq_entry->list);
6414                 kfree(iocbq_entry);
6415                 phba->total_iocbq_bufs--;
6416         }
6417         spin_unlock_irq(&phba->hbalock);
6418
6419         return;
6420 }
6421
6422 /**
6423  * lpfc_init_iocb_list - Allocate and initialize iocb list.
6424  * @phba: pointer to lpfc hba data structure.
6425  *
6426  * This routine is invoked to allocate and initizlize the driver's IOCB
6427  * list and set up the IOCB tag array accordingly.
6428  *
6429  * Return codes
6430  *      0 - successful
6431  *      other values - error
6432  **/
6433 int
6434 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
6435 {
6436         struct lpfc_iocbq *iocbq_entry = NULL;
6437         uint16_t iotag;
6438         int i;
6439
6440         /* Initialize and populate the iocb list per host.  */
6441         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
6442         for (i = 0; i < iocb_count; i++) {
6443                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
6444                 if (iocbq_entry == NULL) {
6445                         printk(KERN_ERR "%s: only allocated %d iocbs of "
6446                                 "expected %d count. Unloading driver.\n",
6447                                 __func__, i, LPFC_IOCB_LIST_CNT);
6448                         goto out_free_iocbq;
6449                 }
6450
6451                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
6452                 if (iotag == 0) {
6453                         kfree(iocbq_entry);
6454                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
6455                                 "Unloading driver.\n", __func__);
6456                         goto out_free_iocbq;
6457                 }
6458                 iocbq_entry->sli4_lxritag = NO_XRI;
6459                 iocbq_entry->sli4_xritag = NO_XRI;
6460
6461                 spin_lock_irq(&phba->hbalock);
6462                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
6463                 phba->total_iocbq_bufs++;
6464                 spin_unlock_irq(&phba->hbalock);
6465         }
6466
6467         return 0;
6468
6469 out_free_iocbq:
6470         lpfc_free_iocb_list(phba);
6471
6472         return -ENOMEM;
6473 }
6474
6475 /**
6476  * lpfc_free_sgl_list - Free a given sgl list.
6477  * @phba: pointer to lpfc hba data structure.
6478  * @sglq_list: pointer to the head of sgl list.
6479  *
6480  * This routine is invoked to free a give sgl list and memory.
6481  **/
6482 void
6483 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
6484 {
6485         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6486
6487         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
6488                 list_del(&sglq_entry->list);
6489                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
6490                 kfree(sglq_entry);
6491         }
6492 }
6493
6494 /**
6495  * lpfc_free_els_sgl_list - Free els sgl list.
6496  * @phba: pointer to lpfc hba data structure.
6497  *
6498  * This routine is invoked to free the driver's els sgl list and memory.
6499  **/
6500 static void
6501 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
6502 {
6503         LIST_HEAD(sglq_list);
6504
6505         /* Retrieve all els sgls from driver list */
6506         spin_lock_irq(&phba->hbalock);
6507         spin_lock(&phba->sli4_hba.sgl_list_lock);
6508         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
6509         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6510         spin_unlock_irq(&phba->hbalock);
6511
6512         /* Now free the sgl list */
6513         lpfc_free_sgl_list(phba, &sglq_list);
6514 }
6515
6516 /**
6517  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
6518  * @phba: pointer to lpfc hba data structure.
6519  *
6520  * This routine is invoked to free the driver's nvmet sgl list and memory.
6521  **/
6522 static void
6523 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
6524 {
6525         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
6526         LIST_HEAD(sglq_list);
6527
6528         /* Retrieve all nvmet sgls from driver list */
6529         spin_lock_irq(&phba->hbalock);
6530         spin_lock(&phba->sli4_hba.sgl_list_lock);
6531         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
6532         spin_unlock(&phba->sli4_hba.sgl_list_lock);
6533         spin_unlock_irq(&phba->hbalock);
6534
6535         /* Now free the sgl list */
6536         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
6537                 list_del(&sglq_entry->list);
6538                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
6539                 kfree(sglq_entry);
6540         }
6541
6542         /* Update the nvmet_xri_cnt to reflect no current sgls.
6543          * The next initialization cycle sets the count and allocates
6544          * the sgls over again.
6545          */
6546         phba->sli4_hba.nvmet_xri_cnt = 0;
6547 }
6548
6549 /**
6550  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
6551  * @phba: pointer to lpfc hba data structure.
6552  *
6553  * This routine is invoked to allocate the driver's active sgl memory.
6554  * This array will hold the sglq_entry's for active IOs.
6555  **/
6556 static int
6557 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
6558 {
6559         int size;
6560         size = sizeof(struct lpfc_sglq *);
6561         size *= phba->sli4_hba.max_cfg_param.max_xri;
6562
6563         phba->sli4_hba.lpfc_sglq_active_list =
6564                 kzalloc(size, GFP_KERNEL);
6565         if (!phba->sli4_hba.lpfc_sglq_active_list)
6566                 return -ENOMEM;
6567         return 0;
6568 }
6569
6570 /**
6571  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
6572  * @phba: pointer to lpfc hba data structure.
6573  *
6574  * This routine is invoked to walk through the array of active sglq entries
6575  * and free all of the resources.
6576  * This is just a place holder for now.
6577  **/
6578 static void
6579 lpfc_free_active_sgl(struct lpfc_hba *phba)
6580 {
6581         kfree(phba->sli4_hba.lpfc_sglq_active_list);
6582 }
6583
6584 /**
6585  * lpfc_init_sgl_list - Allocate and initialize sgl list.
6586  * @phba: pointer to lpfc hba data structure.
6587  *
6588  * This routine is invoked to allocate and initizlize the driver's sgl
6589  * list and set up the sgl xritag tag array accordingly.
6590  *
6591  **/
6592 static void
6593 lpfc_init_sgl_list(struct lpfc_hba *phba)
6594 {
6595         /* Initialize and populate the sglq list per host/VF. */
6596         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
6597         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
6598         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
6599         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6600
6601         /* els xri-sgl book keeping */
6602         phba->sli4_hba.els_xri_cnt = 0;
6603
6604         /* scsi xri-buffer book keeping */
6605         phba->sli4_hba.scsi_xri_cnt = 0;
6606
6607         /* nvme xri-buffer book keeping */
6608         phba->sli4_hba.nvme_xri_cnt = 0;
6609 }
6610
6611 /**
6612  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
6613  * @phba: pointer to lpfc hba data structure.
6614  *
6615  * This routine is invoked to post rpi header templates to the
6616  * port for those SLI4 ports that do not support extents.  This routine
6617  * posts a PAGE_SIZE memory region to the port to hold up to
6618  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
6619  * and should be called only when interrupts are disabled.
6620  *
6621  * Return codes
6622  *      0 - successful
6623  *      -ERROR - otherwise.
6624  **/
6625 int
6626 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
6627 {
6628         int rc = 0;
6629         struct lpfc_rpi_hdr *rpi_hdr;
6630
6631         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
6632         if (!phba->sli4_hba.rpi_hdrs_in_use)
6633                 return rc;
6634         if (phba->sli4_hba.extents_in_use)
6635                 return -EIO;
6636
6637         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
6638         if (!rpi_hdr) {
6639                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6640                                 "0391 Error during rpi post operation\n");
6641                 lpfc_sli4_remove_rpis(phba);
6642                 rc = -ENODEV;
6643         }
6644
6645         return rc;
6646 }
6647
6648 /**
6649  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
6650  * @phba: pointer to lpfc hba data structure.
6651  *
6652  * This routine is invoked to allocate a single 4KB memory region to
6653  * support rpis and stores them in the phba.  This single region
6654  * provides support for up to 64 rpis.  The region is used globally
6655  * by the device.
6656  *
6657  * Returns:
6658  *   A valid rpi hdr on success.
6659  *   A NULL pointer on any failure.
6660  **/
6661 struct lpfc_rpi_hdr *
6662 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6663 {
6664         uint16_t rpi_limit, curr_rpi_range;
6665         struct lpfc_dmabuf *dmabuf;
6666         struct lpfc_rpi_hdr *rpi_hdr;
6667
6668         /*
6669          * If the SLI4 port supports extents, posting the rpi header isn't
6670          * required.  Set the expected maximum count and let the actual value
6671          * get set when extents are fully allocated.
6672          */
6673         if (!phba->sli4_hba.rpi_hdrs_in_use)
6674                 return NULL;
6675         if (phba->sli4_hba.extents_in_use)
6676                 return NULL;
6677
6678         /* The limit on the logical index is just the max_rpi count. */
6679         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
6680
6681         spin_lock_irq(&phba->hbalock);
6682         /*
6683          * Establish the starting RPI in this header block.  The starting
6684          * rpi is normalized to a zero base because the physical rpi is
6685          * port based.
6686          */
6687         curr_rpi_range = phba->sli4_hba.next_rpi;
6688         spin_unlock_irq(&phba->hbalock);
6689
6690         /* Reached full RPI range */
6691         if (curr_rpi_range == rpi_limit)
6692                 return NULL;
6693
6694         /*
6695          * First allocate the protocol header region for the port.  The
6696          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6697          */
6698         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6699         if (!dmabuf)
6700                 return NULL;
6701
6702         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6703                                            LPFC_HDR_TEMPLATE_SIZE,
6704                                            &dmabuf->phys, GFP_KERNEL);
6705         if (!dmabuf->virt) {
6706                 rpi_hdr = NULL;
6707                 goto err_free_dmabuf;
6708         }
6709
6710         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6711                 rpi_hdr = NULL;
6712                 goto err_free_coherent;
6713         }
6714
6715         /* Save the rpi header data for cleanup later. */
6716         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6717         if (!rpi_hdr)
6718                 goto err_free_coherent;
6719
6720         rpi_hdr->dmabuf = dmabuf;
6721         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6722         rpi_hdr->page_count = 1;
6723         spin_lock_irq(&phba->hbalock);
6724
6725         /* The rpi_hdr stores the logical index only. */
6726         rpi_hdr->start_rpi = curr_rpi_range;
6727         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
6728         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6729
6730         spin_unlock_irq(&phba->hbalock);
6731         return rpi_hdr;
6732
6733  err_free_coherent:
6734         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6735                           dmabuf->virt, dmabuf->phys);
6736  err_free_dmabuf:
6737         kfree(dmabuf);
6738         return NULL;
6739 }
6740
6741 /**
6742  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6743  * @phba: pointer to lpfc hba data structure.
6744  *
6745  * This routine is invoked to remove all memory resources allocated
6746  * to support rpis for SLI4 ports not supporting extents. This routine
6747  * presumes the caller has released all rpis consumed by fabric or port
6748  * logins and is prepared to have the header pages removed.
6749  **/
6750 void
6751 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6752 {
6753         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6754
6755         if (!phba->sli4_hba.rpi_hdrs_in_use)
6756                 goto exit;
6757
6758         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6759                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6760                 list_del(&rpi_hdr->list);
6761                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6762                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6763                 kfree(rpi_hdr->dmabuf);
6764                 kfree(rpi_hdr);
6765         }
6766  exit:
6767         /* There are no rpis available to the port now. */
6768         phba->sli4_hba.next_rpi = 0;
6769 }
6770
6771 /**
6772  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6773  * @pdev: pointer to pci device data structure.
6774  *
6775  * This routine is invoked to allocate the driver hba data structure for an
6776  * HBA device. If the allocation is successful, the phba reference to the
6777  * PCI device data structure is set.
6778  *
6779  * Return codes
6780  *      pointer to @phba - successful
6781  *      NULL - error
6782  **/
6783 static struct lpfc_hba *
6784 lpfc_hba_alloc(struct pci_dev *pdev)
6785 {
6786         struct lpfc_hba *phba;
6787
6788         /* Allocate memory for HBA structure */
6789         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6790         if (!phba) {
6791                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6792                 return NULL;
6793         }
6794
6795         /* Set reference to PCI device in HBA structure */
6796         phba->pcidev = pdev;
6797
6798         /* Assign an unused board number */
6799         phba->brd_no = lpfc_get_instance();
6800         if (phba->brd_no < 0) {
6801                 kfree(phba);
6802                 return NULL;
6803         }
6804         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6805
6806         spin_lock_init(&phba->ct_ev_lock);
6807         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6808
6809         return phba;
6810 }
6811
6812 /**
6813  * lpfc_hba_free - Free driver hba data structure with a device.
6814  * @phba: pointer to lpfc hba data structure.
6815  *
6816  * This routine is invoked to free the driver hba data structure with an
6817  * HBA device.
6818  **/
6819 static void
6820 lpfc_hba_free(struct lpfc_hba *phba)
6821 {
6822         /* Release the driver assigned board number */
6823         idr_remove(&lpfc_hba_index, phba->brd_no);
6824
6825         /* Free memory allocated with sli3 rings */
6826         kfree(phba->sli.sli3_ring);
6827         phba->sli.sli3_ring = NULL;
6828
6829         kfree(phba);
6830         return;
6831 }
6832
6833 /**
6834  * lpfc_create_shost - Create hba physical port with associated scsi host.
6835  * @phba: pointer to lpfc hba data structure.
6836  *
6837  * This routine is invoked to create HBA physical port and associate a SCSI
6838  * host with it.
6839  *
6840  * Return codes
6841  *      0 - successful
6842  *      other values - error
6843  **/
6844 static int
6845 lpfc_create_shost(struct lpfc_hba *phba)
6846 {
6847         struct lpfc_vport *vport;
6848         struct Scsi_Host  *shost;
6849
6850         /* Initialize HBA FC structure */
6851         phba->fc_edtov = FF_DEF_EDTOV;
6852         phba->fc_ratov = FF_DEF_RATOV;
6853         phba->fc_altov = FF_DEF_ALTOV;
6854         phba->fc_arbtov = FF_DEF_ARBTOV;
6855
6856         atomic_set(&phba->sdev_cnt, 0);
6857         atomic_set(&phba->fc4ScsiInputRequests, 0);
6858         atomic_set(&phba->fc4ScsiOutputRequests, 0);
6859         atomic_set(&phba->fc4ScsiControlRequests, 0);
6860         atomic_set(&phba->fc4ScsiIoCmpls, 0);
6861         atomic_set(&phba->fc4NvmeInputRequests, 0);
6862         atomic_set(&phba->fc4NvmeOutputRequests, 0);
6863         atomic_set(&phba->fc4NvmeControlRequests, 0);
6864         atomic_set(&phba->fc4NvmeIoCmpls, 0);
6865         atomic_set(&phba->fc4NvmeLsRequests, 0);
6866         atomic_set(&phba->fc4NvmeLsCmpls, 0);
6867         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6868         if (!vport)
6869                 return -ENODEV;
6870
6871         shost = lpfc_shost_from_vport(vport);
6872         phba->pport = vport;
6873
6874         if (phba->nvmet_support) {
6875                 /* Only 1 vport (pport) will support NVME target */
6876                 if (phba->txrdy_payload_pool == NULL) {
6877                         phba->txrdy_payload_pool = dma_pool_create(
6878                                 "txrdy_pool", &phba->pcidev->dev,
6879                                 TXRDY_PAYLOAD_LEN, 16, 0);
6880                         if (phba->txrdy_payload_pool) {
6881                                 phba->targetport = NULL;
6882                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
6883                                 lpfc_printf_log(phba, KERN_INFO,
6884                                                 LOG_INIT | LOG_NVME_DISC,
6885                                                 "6076 NVME Target Found\n");
6886                         }
6887                 }
6888         }
6889
6890         lpfc_debugfs_initialize(vport);
6891         /* Put reference to SCSI host to driver's device private data */
6892         pci_set_drvdata(phba->pcidev, shost);
6893
6894         /*
6895          * At this point we are fully registered with PSA. In addition,
6896          * any initial discovery should be completed.
6897          */
6898         vport->load_flag |= FC_ALLOW_FDMI;
6899         if (phba->cfg_enable_SmartSAN ||
6900             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6901
6902                 /* Setup appropriate attribute masks */
6903                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6904                 if (phba->cfg_enable_SmartSAN)
6905                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6906                 else
6907                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6908         }
6909         return 0;
6910 }
6911
6912 /**
6913  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6914  * @phba: pointer to lpfc hba data structure.
6915  *
6916  * This routine is invoked to destroy HBA physical port and the associated
6917  * SCSI host.
6918  **/
6919 static void
6920 lpfc_destroy_shost(struct lpfc_hba *phba)
6921 {
6922         struct lpfc_vport *vport = phba->pport;
6923
6924         /* Destroy physical port that associated with the SCSI host */
6925         destroy_port(vport);
6926
6927         return;
6928 }
6929
6930 /**
6931  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6932  * @phba: pointer to lpfc hba data structure.
6933  * @shost: the shost to be used to detect Block guard settings.
6934  *
6935  * This routine sets up the local Block guard protocol settings for @shost.
6936  * This routine also allocates memory for debugging bg buffers.
6937  **/
6938 static void
6939 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6940 {
6941         uint32_t old_mask;
6942         uint32_t old_guard;
6943
6944         int pagecnt = 10;
6945         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6946                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6947                                 "1478 Registering BlockGuard with the "
6948                                 "SCSI layer\n");
6949
6950                 old_mask = phba->cfg_prot_mask;
6951                 old_guard = phba->cfg_prot_guard;
6952
6953                 /* Only allow supported values */
6954                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6955                         SHOST_DIX_TYPE0_PROTECTION |
6956                         SHOST_DIX_TYPE1_PROTECTION);
6957                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
6958                                          SHOST_DIX_GUARD_CRC);
6959
6960                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6961                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6962                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6963
6964                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6965                         if ((old_mask != phba->cfg_prot_mask) ||
6966                                 (old_guard != phba->cfg_prot_guard))
6967                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6968                                         "1475 Registering BlockGuard with the "
6969                                         "SCSI layer: mask %d  guard %d\n",
6970                                         phba->cfg_prot_mask,
6971                                         phba->cfg_prot_guard);
6972
6973                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
6974                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
6975                 } else
6976                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6977                                 "1479 Not Registering BlockGuard with the SCSI "
6978                                 "layer, Bad protection parameters: %d %d\n",
6979                                 old_mask, old_guard);
6980         }
6981
6982         if (!_dump_buf_data) {
6983                 while (pagecnt) {
6984                         spin_lock_init(&_dump_buf_lock);
6985                         _dump_buf_data =
6986                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6987                         if (_dump_buf_data) {
6988                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6989                                         "9043 BLKGRD: allocated %d pages for "
6990                                        "_dump_buf_data at 0x%p\n",
6991                                        (1 << pagecnt), _dump_buf_data);
6992                                 _dump_buf_data_order = pagecnt;
6993                                 memset(_dump_buf_data, 0,
6994                                        ((1 << PAGE_SHIFT) << pagecnt));
6995                                 break;
6996                         } else
6997                                 --pagecnt;
6998                 }
6999                 if (!_dump_buf_data_order)
7000                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7001                                 "9044 BLKGRD: ERROR unable to allocate "
7002                                "memory for hexdump\n");
7003         } else
7004                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7005                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
7006                        "\n", _dump_buf_data);
7007         if (!_dump_buf_dif) {
7008                 while (pagecnt) {
7009                         _dump_buf_dif =
7010                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7011                         if (_dump_buf_dif) {
7012                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7013                                         "9046 BLKGRD: allocated %d pages for "
7014                                        "_dump_buf_dif at 0x%p\n",
7015                                        (1 << pagecnt), _dump_buf_dif);
7016                                 _dump_buf_dif_order = pagecnt;
7017                                 memset(_dump_buf_dif, 0,
7018                                        ((1 << PAGE_SHIFT) << pagecnt));
7019                                 break;
7020                         } else
7021                                 --pagecnt;
7022                 }
7023                 if (!_dump_buf_dif_order)
7024                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7025                         "9047 BLKGRD: ERROR unable to allocate "
7026                                "memory for hexdump\n");
7027         } else
7028                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7029                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7030                        _dump_buf_dif);
7031 }
7032
7033 /**
7034  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7035  * @phba: pointer to lpfc hba data structure.
7036  *
7037  * This routine is invoked to perform all the necessary post initialization
7038  * setup for the device.
7039  **/
7040 static void
7041 lpfc_post_init_setup(struct lpfc_hba *phba)
7042 {
7043         struct Scsi_Host  *shost;
7044         struct lpfc_adapter_event_header adapter_event;
7045
7046         /* Get the default values for Model Name and Description */
7047         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7048
7049         /*
7050          * hba setup may have changed the hba_queue_depth so we need to
7051          * adjust the value of can_queue.
7052          */
7053         shost = pci_get_drvdata(phba->pcidev);
7054         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7055         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
7056                 lpfc_setup_bg(phba, shost);
7057
7058         lpfc_host_attrib_init(shost);
7059
7060         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7061                 spin_lock_irq(shost->host_lock);
7062                 lpfc_poll_start_timer(phba);
7063                 spin_unlock_irq(shost->host_lock);
7064         }
7065
7066         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7067                         "0428 Perform SCSI scan\n");
7068         /* Send board arrival event to upper layer */
7069         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7070         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7071         fc_host_post_vendor_event(shost, fc_get_event_number(),
7072                                   sizeof(adapter_event),
7073                                   (char *) &adapter_event,
7074                                   LPFC_NL_VENDOR_ID);
7075         return;
7076 }
7077
7078 /**
7079  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7080  * @phba: pointer to lpfc hba data structure.
7081  *
7082  * This routine is invoked to set up the PCI device memory space for device
7083  * with SLI-3 interface spec.
7084  *
7085  * Return codes
7086  *      0 - successful
7087  *      other values - error
7088  **/
7089 static int
7090 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7091 {
7092         struct pci_dev *pdev;
7093         unsigned long bar0map_len, bar2map_len;
7094         int i, hbq_count;
7095         void *ptr;
7096         int error = -ENODEV;
7097
7098         /* Obtain PCI device reference */
7099         if (!phba->pcidev)
7100                 return error;
7101         else
7102                 pdev = phba->pcidev;
7103
7104         /* Set the device DMA mask size */
7105         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7106          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7107                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7108                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7109                         return error;
7110                 }
7111         }
7112
7113         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7114          * required by each mapping.
7115          */
7116         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7117         bar0map_len = pci_resource_len(pdev, 0);
7118
7119         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7120         bar2map_len = pci_resource_len(pdev, 2);
7121
7122         /* Map HBA SLIM to a kernel virtual address. */
7123         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7124         if (!phba->slim_memmap_p) {
7125                 dev_printk(KERN_ERR, &pdev->dev,
7126                            "ioremap failed for SLIM memory.\n");
7127                 goto out;
7128         }
7129
7130         /* Map HBA Control Registers to a kernel virtual address. */
7131         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7132         if (!phba->ctrl_regs_memmap_p) {
7133                 dev_printk(KERN_ERR, &pdev->dev,
7134                            "ioremap failed for HBA control registers.\n");
7135                 goto out_iounmap_slim;
7136         }
7137
7138         /* Allocate memory for SLI-2 structures */
7139         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7140                                                 &phba->slim2p.phys, GFP_KERNEL);
7141         if (!phba->slim2p.virt)
7142                 goto out_iounmap;
7143
7144         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7145         phba->mbox_ext = (phba->slim2p.virt +
7146                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7147         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7148         phba->IOCBs = (phba->slim2p.virt +
7149                        offsetof(struct lpfc_sli2_slim, IOCBs));
7150
7151         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7152                                                  lpfc_sli_hbq_size(),
7153                                                  &phba->hbqslimp.phys,
7154                                                  GFP_KERNEL);
7155         if (!phba->hbqslimp.virt)
7156                 goto out_free_slim;
7157
7158         hbq_count = lpfc_sli_hbq_count();
7159         ptr = phba->hbqslimp.virt;
7160         for (i = 0; i < hbq_count; ++i) {
7161                 phba->hbqs[i].hbq_virt = ptr;
7162                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7163                 ptr += (lpfc_hbq_defs[i]->entry_count *
7164                         sizeof(struct lpfc_hbq_entry));
7165         }
7166         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7167         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7168
7169         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7170
7171         phba->MBslimaddr = phba->slim_memmap_p;
7172         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7173         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7174         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7175         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7176
7177         return 0;
7178
7179 out_free_slim:
7180         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7181                           phba->slim2p.virt, phba->slim2p.phys);
7182 out_iounmap:
7183         iounmap(phba->ctrl_regs_memmap_p);
7184 out_iounmap_slim:
7185         iounmap(phba->slim_memmap_p);
7186 out:
7187         return error;
7188 }
7189
7190 /**
7191  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7192  * @phba: pointer to lpfc hba data structure.
7193  *
7194  * This routine is invoked to unset the PCI device memory space for device
7195  * with SLI-3 interface spec.
7196  **/
7197 static void
7198 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7199 {
7200         struct pci_dev *pdev;
7201
7202         /* Obtain PCI device reference */
7203         if (!phba->pcidev)
7204                 return;
7205         else
7206                 pdev = phba->pcidev;
7207
7208         /* Free coherent DMA memory allocated */
7209         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7210                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7211         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7212                           phba->slim2p.virt, phba->slim2p.phys);
7213
7214         /* I/O memory unmap */
7215         iounmap(phba->ctrl_regs_memmap_p);
7216         iounmap(phba->slim_memmap_p);
7217
7218         return;
7219 }
7220
7221 /**
7222  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7223  * @phba: pointer to lpfc hba data structure.
7224  *
7225  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7226  * done and check status.
7227  *
7228  * Return 0 if successful, otherwise -ENODEV.
7229  **/
7230 int
7231 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7232 {
7233         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7234         struct lpfc_register reg_data;
7235         int i, port_error = 0;
7236         uint32_t if_type;
7237
7238         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7239         memset(&reg_data, 0, sizeof(reg_data));
7240         if (!phba->sli4_hba.PSMPHRregaddr)
7241                 return -ENODEV;
7242
7243         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7244         for (i = 0; i < 3000; i++) {
7245                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7246                         &portsmphr_reg.word0) ||
7247                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7248                         /* Port has a fatal POST error, break out */
7249                         port_error = -ENODEV;
7250                         break;
7251                 }
7252                 if (LPFC_POST_STAGE_PORT_READY ==
7253                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7254                         break;
7255                 msleep(10);
7256         }
7257
7258         /*
7259          * If there was a port error during POST, then don't proceed with
7260          * other register reads as the data may not be valid.  Just exit.
7261          */
7262         if (port_error) {
7263                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7264                         "1408 Port Failed POST - portsmphr=0x%x, "
7265                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7266                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7267                         portsmphr_reg.word0,
7268                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7269                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7270                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7271                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7272                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7273                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7274                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7275                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7276         } else {
7277                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7278                                 "2534 Device Info: SLIFamily=0x%x, "
7279                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7280                                 "SLIHint_2=0x%x, FT=0x%x\n",
7281                                 bf_get(lpfc_sli_intf_sli_family,
7282                                        &phba->sli4_hba.sli_intf),
7283                                 bf_get(lpfc_sli_intf_slirev,
7284                                        &phba->sli4_hba.sli_intf),
7285                                 bf_get(lpfc_sli_intf_if_type,
7286                                        &phba->sli4_hba.sli_intf),
7287                                 bf_get(lpfc_sli_intf_sli_hint1,
7288                                        &phba->sli4_hba.sli_intf),
7289                                 bf_get(lpfc_sli_intf_sli_hint2,
7290                                        &phba->sli4_hba.sli_intf),
7291                                 bf_get(lpfc_sli_intf_func_type,
7292                                        &phba->sli4_hba.sli_intf));
7293                 /*
7294                  * Check for other Port errors during the initialization
7295                  * process.  Fail the load if the port did not come up
7296                  * correctly.
7297                  */
7298                 if_type = bf_get(lpfc_sli_intf_if_type,
7299                                  &phba->sli4_hba.sli_intf);
7300                 switch (if_type) {
7301                 case LPFC_SLI_INTF_IF_TYPE_0:
7302                         phba->sli4_hba.ue_mask_lo =
7303                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7304                         phba->sli4_hba.ue_mask_hi =
7305                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7306                         uerrlo_reg.word0 =
7307                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7308                         uerrhi_reg.word0 =
7309                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7310                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7311                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7312                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7313                                                 "1422 Unrecoverable Error "
7314                                                 "Detected during POST "
7315                                                 "uerr_lo_reg=0x%x, "
7316                                                 "uerr_hi_reg=0x%x, "
7317                                                 "ue_mask_lo_reg=0x%x, "
7318                                                 "ue_mask_hi_reg=0x%x\n",
7319                                                 uerrlo_reg.word0,
7320                                                 uerrhi_reg.word0,
7321                                                 phba->sli4_hba.ue_mask_lo,
7322                                                 phba->sli4_hba.ue_mask_hi);
7323                                 port_error = -ENODEV;
7324                         }
7325                         break;
7326                 case LPFC_SLI_INTF_IF_TYPE_2:
7327                         /* Final checks.  The port status should be clean. */
7328                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7329                                 &reg_data.word0) ||
7330                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7331                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7332                                 phba->work_status[0] =
7333                                         readl(phba->sli4_hba.u.if_type2.
7334                                               ERR1regaddr);
7335                                 phba->work_status[1] =
7336                                         readl(phba->sli4_hba.u.if_type2.
7337                                               ERR2regaddr);
7338                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7339                                         "2888 Unrecoverable port error "
7340                                         "following POST: port status reg "
7341                                         "0x%x, port_smphr reg 0x%x, "
7342                                         "error 1=0x%x, error 2=0x%x\n",
7343                                         reg_data.word0,
7344                                         portsmphr_reg.word0,
7345                                         phba->work_status[0],
7346                                         phba->work_status[1]);
7347                                 port_error = -ENODEV;
7348                         }
7349                         break;
7350                 case LPFC_SLI_INTF_IF_TYPE_1:
7351                 default:
7352                         break;
7353                 }
7354         }
7355         return port_error;
7356 }
7357
7358 /**
7359  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7360  * @phba: pointer to lpfc hba data structure.
7361  * @if_type:  The SLI4 interface type getting configured.
7362  *
7363  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7364  * memory map.
7365  **/
7366 static void
7367 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7368 {
7369         switch (if_type) {
7370         case LPFC_SLI_INTF_IF_TYPE_0:
7371                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7372                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7373                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7374                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7375                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7376                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7377                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7378                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7379                 phba->sli4_hba.SLIINTFregaddr =
7380                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7381                 break;
7382         case LPFC_SLI_INTF_IF_TYPE_2:
7383                 phba->sli4_hba.u.if_type2.EQDregaddr =
7384                         phba->sli4_hba.conf_regs_memmap_p +
7385                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7386                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7387                         phba->sli4_hba.conf_regs_memmap_p +
7388                                                 LPFC_CTL_PORT_ER1_OFFSET;
7389                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7390                         phba->sli4_hba.conf_regs_memmap_p +
7391                                                 LPFC_CTL_PORT_ER2_OFFSET;
7392                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7393                         phba->sli4_hba.conf_regs_memmap_p +
7394                                                 LPFC_CTL_PORT_CTL_OFFSET;
7395                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7396                         phba->sli4_hba.conf_regs_memmap_p +
7397                                                 LPFC_CTL_PORT_STA_OFFSET;
7398                 phba->sli4_hba.SLIINTFregaddr =
7399                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7400                 phba->sli4_hba.PSMPHRregaddr =
7401                         phba->sli4_hba.conf_regs_memmap_p +
7402                                                 LPFC_CTL_PORT_SEM_OFFSET;
7403                 phba->sli4_hba.RQDBregaddr =
7404                         phba->sli4_hba.conf_regs_memmap_p +
7405                                                 LPFC_ULP0_RQ_DOORBELL;
7406                 phba->sli4_hba.WQDBregaddr =
7407                         phba->sli4_hba.conf_regs_memmap_p +
7408                                                 LPFC_ULP0_WQ_DOORBELL;
7409                 phba->sli4_hba.EQCQDBregaddr =
7410                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
7411                 phba->sli4_hba.MQDBregaddr =
7412                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
7413                 phba->sli4_hba.BMBXregaddr =
7414                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
7415                 break;
7416         case LPFC_SLI_INTF_IF_TYPE_1:
7417         default:
7418                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7419                            "FATAL - unsupported SLI4 interface type - %d\n",
7420                            if_type);
7421                 break;
7422         }
7423 }
7424
7425 /**
7426  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
7427  * @phba: pointer to lpfc hba data structure.
7428  *
7429  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
7430  * memory map.
7431  **/
7432 static void
7433 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
7434 {
7435         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7436                 LPFC_SLIPORT_IF0_SMPHR;
7437         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7438                 LPFC_HST_ISR0;
7439         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7440                 LPFC_HST_IMR0;
7441         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
7442                 LPFC_HST_ISCR0;
7443 }
7444
7445 /**
7446  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
7447  * @phba: pointer to lpfc hba data structure.
7448  * @vf: virtual function number
7449  *
7450  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
7451  * based on the given viftual function number, @vf.
7452  *
7453  * Return 0 if successful, otherwise -ENODEV.
7454  **/
7455 static int
7456 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
7457 {
7458         if (vf > LPFC_VIR_FUNC_MAX)
7459                 return -ENODEV;
7460
7461         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7462                                 vf * LPFC_VFR_PAGE_SIZE +
7463                                         LPFC_ULP0_RQ_DOORBELL);
7464         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7465                                 vf * LPFC_VFR_PAGE_SIZE +
7466                                         LPFC_ULP0_WQ_DOORBELL);
7467         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7468                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
7469         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7470                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
7471         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
7472                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
7473         return 0;
7474 }
7475
7476 /**
7477  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
7478  * @phba: pointer to lpfc hba data structure.
7479  *
7480  * This routine is invoked to create the bootstrap mailbox
7481  * region consistent with the SLI-4 interface spec.  This
7482  * routine allocates all memory necessary to communicate
7483  * mailbox commands to the port and sets up all alignment
7484  * needs.  No locks are expected to be held when calling
7485  * this routine.
7486  *
7487  * Return codes
7488  *      0 - successful
7489  *      -ENOMEM - could not allocated memory.
7490  **/
7491 static int
7492 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
7493 {
7494         uint32_t bmbx_size;
7495         struct lpfc_dmabuf *dmabuf;
7496         struct dma_address *dma_address;
7497         uint32_t pa_addr;
7498         uint64_t phys_addr;
7499
7500         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7501         if (!dmabuf)
7502                 return -ENOMEM;
7503
7504         /*
7505          * The bootstrap mailbox region is comprised of 2 parts
7506          * plus an alignment restriction of 16 bytes.
7507          */
7508         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
7509         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
7510                                            &dmabuf->phys, GFP_KERNEL);
7511         if (!dmabuf->virt) {
7512                 kfree(dmabuf);
7513                 return -ENOMEM;
7514         }
7515
7516         /*
7517          * Initialize the bootstrap mailbox pointers now so that the register
7518          * operations are simple later.  The mailbox dma address is required
7519          * to be 16-byte aligned.  Also align the virtual memory as each
7520          * maibox is copied into the bmbx mailbox region before issuing the
7521          * command to the port.
7522          */
7523         phba->sli4_hba.bmbx.dmabuf = dmabuf;
7524         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
7525
7526         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
7527                                               LPFC_ALIGN_16_BYTE);
7528         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
7529                                               LPFC_ALIGN_16_BYTE);
7530
7531         /*
7532          * Set the high and low physical addresses now.  The SLI4 alignment
7533          * requirement is 16 bytes and the mailbox is posted to the port
7534          * as two 30-bit addresses.  The other data is a bit marking whether
7535          * the 30-bit address is the high or low address.
7536          * Upcast bmbx aphys to 64bits so shift instruction compiles
7537          * clean on 32 bit machines.
7538          */
7539         dma_address = &phba->sli4_hba.bmbx.dma_address;
7540         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
7541         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
7542         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
7543                                            LPFC_BMBX_BIT1_ADDR_HI);
7544
7545         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
7546         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
7547                                            LPFC_BMBX_BIT1_ADDR_LO);
7548         return 0;
7549 }
7550
7551 /**
7552  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
7553  * @phba: pointer to lpfc hba data structure.
7554  *
7555  * This routine is invoked to teardown the bootstrap mailbox
7556  * region and release all host resources. This routine requires
7557  * the caller to ensure all mailbox commands recovered, no
7558  * additional mailbox comands are sent, and interrupts are disabled
7559  * before calling this routine.
7560  *
7561  **/
7562 static void
7563 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
7564 {
7565         dma_free_coherent(&phba->pcidev->dev,
7566                           phba->sli4_hba.bmbx.bmbx_size,
7567                           phba->sli4_hba.bmbx.dmabuf->virt,
7568                           phba->sli4_hba.bmbx.dmabuf->phys);
7569
7570         kfree(phba->sli4_hba.bmbx.dmabuf);
7571         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
7572 }
7573
7574 /**
7575  * lpfc_sli4_read_config - Get the config parameters.
7576  * @phba: pointer to lpfc hba data structure.
7577  *
7578  * This routine is invoked to read the configuration parameters from the HBA.
7579  * The configuration parameters are used to set the base and maximum values
7580  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
7581  * allocation for the port.
7582  *
7583  * Return codes
7584  *      0 - successful
7585  *      -ENOMEM - No available memory
7586  *      -EIO - The mailbox failed to complete successfully.
7587  **/
7588 int
7589 lpfc_sli4_read_config(struct lpfc_hba *phba)
7590 {
7591         LPFC_MBOXQ_t *pmb;
7592         struct lpfc_mbx_read_config *rd_config;
7593         union  lpfc_sli4_cfg_shdr *shdr;
7594         uint32_t shdr_status, shdr_add_status;
7595         struct lpfc_mbx_get_func_cfg *get_func_cfg;
7596         struct lpfc_rsrc_desc_fcfcoe *desc;
7597         char *pdesc_0;
7598         uint16_t forced_link_speed;
7599         uint32_t if_type;
7600         int length, i, rc = 0, rc2;
7601
7602         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7603         if (!pmb) {
7604                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7605                                 "2011 Unable to allocate memory for issuing "
7606                                 "SLI_CONFIG_SPECIAL mailbox command\n");
7607                 return -ENOMEM;
7608         }
7609
7610         lpfc_read_config(phba, pmb);
7611
7612         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7613         if (rc != MBX_SUCCESS) {
7614                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7615                         "2012 Mailbox failed , mbxCmd x%x "
7616                         "READ_CONFIG, mbxStatus x%x\n",
7617                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
7618                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
7619                 rc = -EIO;
7620         } else {
7621                 rd_config = &pmb->u.mqe.un.rd_config;
7622                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
7623                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
7624                         phba->sli4_hba.lnk_info.lnk_tp =
7625                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
7626                         phba->sli4_hba.lnk_info.lnk_no =
7627                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
7628                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7629                                         "3081 lnk_type:%d, lnk_numb:%d\n",
7630                                         phba->sli4_hba.lnk_info.lnk_tp,
7631                                         phba->sli4_hba.lnk_info.lnk_no);
7632                 } else
7633                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7634                                         "3082 Mailbox (x%x) returned ldv:x0\n",
7635                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
7636                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
7637                         phba->bbcredit_support = 1;
7638                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
7639                 }
7640
7641                 phba->sli4_hba.extents_in_use =
7642                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
7643                 phba->sli4_hba.max_cfg_param.max_xri =
7644                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
7645                 phba->sli4_hba.max_cfg_param.xri_base =
7646                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
7647                 phba->sli4_hba.max_cfg_param.max_vpi =
7648                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
7649                 phba->sli4_hba.max_cfg_param.vpi_base =
7650                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
7651                 phba->sli4_hba.max_cfg_param.max_rpi =
7652                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
7653                 phba->sli4_hba.max_cfg_param.rpi_base =
7654                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
7655                 phba->sli4_hba.max_cfg_param.max_vfi =
7656                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
7657                 phba->sli4_hba.max_cfg_param.vfi_base =
7658                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
7659                 phba->sli4_hba.max_cfg_param.max_fcfi =
7660                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
7661                 phba->sli4_hba.max_cfg_param.max_eq =
7662                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
7663                 phba->sli4_hba.max_cfg_param.max_rq =
7664                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
7665                 phba->sli4_hba.max_cfg_param.max_wq =
7666                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
7667                 phba->sli4_hba.max_cfg_param.max_cq =
7668                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
7669                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7670                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7671                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7672                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7673                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7674                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7675                 phba->max_vports = phba->max_vpi;
7676                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7677                                 "2003 cfg params Extents? %d "
7678                                 "XRI(B:%d M:%d), "
7679                                 "VPI(B:%d M:%d) "
7680                                 "VFI(B:%d M:%d) "
7681                                 "RPI(B:%d M:%d) "
7682                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
7683                                 phba->sli4_hba.extents_in_use,
7684                                 phba->sli4_hba.max_cfg_param.xri_base,
7685                                 phba->sli4_hba.max_cfg_param.max_xri,
7686                                 phba->sli4_hba.max_cfg_param.vpi_base,
7687                                 phba->sli4_hba.max_cfg_param.max_vpi,
7688                                 phba->sli4_hba.max_cfg_param.vfi_base,
7689                                 phba->sli4_hba.max_cfg_param.max_vfi,
7690                                 phba->sli4_hba.max_cfg_param.rpi_base,
7691                                 phba->sli4_hba.max_cfg_param.max_rpi,
7692                                 phba->sli4_hba.max_cfg_param.max_fcfi,
7693                                 phba->sli4_hba.max_cfg_param.max_eq,
7694                                 phba->sli4_hba.max_cfg_param.max_cq,
7695                                 phba->sli4_hba.max_cfg_param.max_wq,
7696                                 phba->sli4_hba.max_cfg_param.max_rq);
7697
7698         }
7699
7700         if (rc)
7701                 goto read_cfg_out;
7702
7703         /* Update link speed if forced link speed is supported */
7704         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7705         if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7706                 forced_link_speed =
7707                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
7708                 if (forced_link_speed) {
7709                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
7710
7711                         switch (forced_link_speed) {
7712                         case LINK_SPEED_1G:
7713                                 phba->cfg_link_speed =
7714                                         LPFC_USER_LINK_SPEED_1G;
7715                                 break;
7716                         case LINK_SPEED_2G:
7717                                 phba->cfg_link_speed =
7718                                         LPFC_USER_LINK_SPEED_2G;
7719                                 break;
7720                         case LINK_SPEED_4G:
7721                                 phba->cfg_link_speed =
7722                                         LPFC_USER_LINK_SPEED_4G;
7723                                 break;
7724                         case LINK_SPEED_8G:
7725                                 phba->cfg_link_speed =
7726                                         LPFC_USER_LINK_SPEED_8G;
7727                                 break;
7728                         case LINK_SPEED_10G:
7729                                 phba->cfg_link_speed =
7730                                         LPFC_USER_LINK_SPEED_10G;
7731                                 break;
7732                         case LINK_SPEED_16G:
7733                                 phba->cfg_link_speed =
7734                                         LPFC_USER_LINK_SPEED_16G;
7735                                 break;
7736                         case LINK_SPEED_32G:
7737                                 phba->cfg_link_speed =
7738                                         LPFC_USER_LINK_SPEED_32G;
7739                                 break;
7740                         case 0xffff:
7741                                 phba->cfg_link_speed =
7742                                         LPFC_USER_LINK_SPEED_AUTO;
7743                                 break;
7744                         default:
7745                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7746                                                 "0047 Unrecognized link "
7747                                                 "speed : %d\n",
7748                                                 forced_link_speed);
7749                                 phba->cfg_link_speed =
7750                                         LPFC_USER_LINK_SPEED_AUTO;
7751                         }
7752                 }
7753         }
7754
7755         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
7756         length = phba->sli4_hba.max_cfg_param.max_xri -
7757                         lpfc_sli4_get_els_iocb_cnt(phba);
7758         if (phba->cfg_hba_queue_depth > length) {
7759                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7760                                 "3361 HBA queue depth changed from %d to %d\n",
7761                                 phba->cfg_hba_queue_depth, length);
7762                 phba->cfg_hba_queue_depth = length;
7763         }
7764
7765         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
7766             LPFC_SLI_INTF_IF_TYPE_2)
7767                 goto read_cfg_out;
7768
7769         /* get the pf# and vf# for SLI4 if_type 2 port */
7770         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7771                   sizeof(struct lpfc_sli4_cfg_mhdr));
7772         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7773                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7774                          length, LPFC_SLI4_MBX_EMBED);
7775
7776         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7777         shdr = (union lpfc_sli4_cfg_shdr *)
7778                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7779         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7780         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7781         if (rc2 || shdr_status || shdr_add_status) {
7782                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7783                                 "3026 Mailbox failed , mbxCmd x%x "
7784                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7785                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7786                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7787                 goto read_cfg_out;
7788         }
7789
7790         /* search for fc_fcoe resrouce descriptor */
7791         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7792
7793         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7794         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7795         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7796         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7797                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7798         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7799                 goto read_cfg_out;
7800
7801         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7802                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7803                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7804                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7805                         phba->sli4_hba.iov.pf_number =
7806                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7807                         phba->sli4_hba.iov.vf_number =
7808                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7809                         break;
7810                 }
7811         }
7812
7813         if (i < LPFC_RSRC_DESC_MAX_NUM)
7814                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7815                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7816                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7817                                 phba->sli4_hba.iov.vf_number);
7818         else
7819                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7820                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7821                                 "Resrouce Descriptor:x%x\n",
7822                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7823
7824 read_cfg_out:
7825         mempool_free(pmb, phba->mbox_mem_pool);
7826         return rc;
7827 }
7828
7829 /**
7830  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7831  * @phba: pointer to lpfc hba data structure.
7832  *
7833  * This routine is invoked to setup the port-side endian order when
7834  * the port if_type is 0.  This routine has no function for other
7835  * if_types.
7836  *
7837  * Return codes
7838  *      0 - successful
7839  *      -ENOMEM - No available memory
7840  *      -EIO - The mailbox failed to complete successfully.
7841  **/
7842 static int
7843 lpfc_setup_endian_order(struct lpfc_hba *phba)
7844 {
7845         LPFC_MBOXQ_t *mboxq;
7846         uint32_t if_type, rc = 0;
7847         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7848                                       HOST_ENDIAN_HIGH_WORD1};
7849
7850         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7851         switch (if_type) {
7852         case LPFC_SLI_INTF_IF_TYPE_0:
7853                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7854                                                        GFP_KERNEL);
7855                 if (!mboxq) {
7856                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7857                                         "0492 Unable to allocate memory for "
7858                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7859                                         "command\n");
7860                         return -ENOMEM;
7861                 }
7862
7863                 /*
7864                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7865                  * two words to contain special data values and no other data.
7866                  */
7867                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7868                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7869                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7870                 if (rc != MBX_SUCCESS) {
7871                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7872                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7873                                         "failed with status x%x\n",
7874                                         rc);
7875                         rc = -EIO;
7876                 }
7877                 mempool_free(mboxq, phba->mbox_mem_pool);
7878                 break;
7879         case LPFC_SLI_INTF_IF_TYPE_2:
7880         case LPFC_SLI_INTF_IF_TYPE_1:
7881         default:
7882                 break;
7883         }
7884         return rc;
7885 }
7886
7887 /**
7888  * lpfc_sli4_queue_verify - Verify and update EQ counts
7889  * @phba: pointer to lpfc hba data structure.
7890  *
7891  * This routine is invoked to check the user settable queue counts for EQs.
7892  * After this routine is called the counts will be set to valid values that
7893  * adhere to the constraints of the system's interrupt vectors and the port's
7894  * queue resources.
7895  *
7896  * Return codes
7897  *      0 - successful
7898  *      -ENOMEM - No available memory
7899  **/
7900 static int
7901 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7902 {
7903         int io_channel;
7904         int fof_vectors = phba->cfg_fof ? 1 : 0;
7905
7906         /*
7907          * Sanity check for configured queue parameters against the run-time
7908          * device parameters
7909          */
7910
7911         /* Sanity check on HBA EQ parameters */
7912         io_channel = phba->io_channel_irqs;
7913
7914         if (phba->sli4_hba.num_online_cpu < io_channel) {
7915                 lpfc_printf_log(phba,
7916                                 KERN_ERR, LOG_INIT,
7917                                 "3188 Reducing IO channels to match number of "
7918                                 "online CPUs: from %d to %d\n",
7919                                 io_channel, phba->sli4_hba.num_online_cpu);
7920                 io_channel = phba->sli4_hba.num_online_cpu;
7921         }
7922
7923         if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) {
7924                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7925                                 "2575 Reducing IO channels to match number of "
7926                                 "available EQs: from %d to %d\n",
7927                                 io_channel,
7928                                 phba->sli4_hba.max_cfg_param.max_eq);
7929                 io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors;
7930         }
7931
7932         /* The actual number of FCP / NVME event queues adopted */
7933         if (io_channel != phba->io_channel_irqs)
7934                 phba->io_channel_irqs = io_channel;
7935         if (phba->cfg_fcp_io_channel > io_channel)
7936                 phba->cfg_fcp_io_channel = io_channel;
7937         if (phba->cfg_nvme_io_channel > io_channel)
7938                 phba->cfg_nvme_io_channel = io_channel;
7939         if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq)
7940                 phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel;
7941
7942         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7943                         "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n",
7944                         phba->io_channel_irqs, phba->cfg_fcp_io_channel,
7945                         phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq);
7946
7947         /* Get EQ depth from module parameter, fake the default for now */
7948         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7949         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7950
7951         /* Get CQ depth from module parameter, fake the default for now */
7952         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7953         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7954         return 0;
7955 }
7956
7957 static int
7958 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
7959 {
7960         struct lpfc_queue *qdesc;
7961         int cnt;
7962
7963         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7964                                             phba->sli4_hba.cq_ecount);
7965         if (!qdesc) {
7966                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7967                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
7968                                 wqidx);
7969                 return 1;
7970         }
7971         phba->sli4_hba.nvme_cq[wqidx] = qdesc;
7972
7973         cnt = LPFC_NVME_WQSIZE;
7974         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_WQE128_SIZE, cnt);
7975         if (!qdesc) {
7976                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7977                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
7978                                 wqidx);
7979                 return 1;
7980         }
7981         phba->sli4_hba.nvme_wq[wqidx] = qdesc;
7982         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
7983         return 0;
7984 }
7985
7986 static int
7987 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
7988 {
7989         struct lpfc_queue *qdesc;
7990         uint32_t wqesize;
7991
7992         /* Create Fast Path FCP CQs */
7993         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7994                                         phba->sli4_hba.cq_ecount);
7995         if (!qdesc) {
7996                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7997                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
7998                 return 1;
7999         }
8000         phba->sli4_hba.fcp_cq[wqidx] = qdesc;
8001
8002         /* Create Fast Path FCP WQs */
8003         wqesize = (phba->fcp_embed_io) ?
8004                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8005         qdesc = lpfc_sli4_queue_alloc(phba, wqesize, phba->sli4_hba.wq_ecount);
8006         if (!qdesc) {
8007                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8008                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
8009                                 wqidx);
8010                 return 1;
8011         }
8012         phba->sli4_hba.fcp_wq[wqidx] = qdesc;
8013         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8014         return 0;
8015 }
8016
8017 /**
8018  * lpfc_sli4_queue_create - Create all the SLI4 queues
8019  * @phba: pointer to lpfc hba data structure.
8020  *
8021  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8022  * operation. For each SLI4 queue type, the parameters such as queue entry
8023  * count (queue depth) shall be taken from the module parameter. For now,
8024  * we just use some constant number as place holder.
8025  *
8026  * Return codes
8027  *      0 - successful
8028  *      -ENOMEM - No availble memory
8029  *      -EIO - The mailbox failed to complete successfully.
8030  **/
8031 int
8032 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8033 {
8034         struct lpfc_queue *qdesc;
8035         int idx, io_channel;
8036
8037         /*
8038          * Create HBA Record arrays.
8039          * Both NVME and FCP will share that same vectors / EQs
8040          */
8041         io_channel = phba->io_channel_irqs;
8042         if (!io_channel)
8043                 return -ERANGE;
8044
8045         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8046         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8047         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8048         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8049         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8050         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8051         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8052         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8053         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8054         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8055
8056         phba->sli4_hba.hba_eq =  kcalloc(io_channel,
8057                                         sizeof(struct lpfc_queue *),
8058                                         GFP_KERNEL);
8059         if (!phba->sli4_hba.hba_eq) {
8060                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8061                         "2576 Failed allocate memory for "
8062                         "fast-path EQ record array\n");
8063                 goto out_error;
8064         }
8065
8066         if (phba->cfg_fcp_io_channel) {
8067                 phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel,
8068                                                 sizeof(struct lpfc_queue *),
8069                                                 GFP_KERNEL);
8070                 if (!phba->sli4_hba.fcp_cq) {
8071                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8072                                         "2577 Failed allocate memory for "
8073                                         "fast-path CQ record array\n");
8074                         goto out_error;
8075                 }
8076                 phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel,
8077                                                 sizeof(struct lpfc_queue *),
8078                                                 GFP_KERNEL);
8079                 if (!phba->sli4_hba.fcp_wq) {
8080                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8081                                         "2578 Failed allocate memory for "
8082                                         "fast-path FCP WQ record array\n");
8083                         goto out_error;
8084                 }
8085                 /*
8086                  * Since the first EQ can have multiple CQs associated with it,
8087                  * this array is used to quickly see if we have a FCP fast-path
8088                  * CQ match.
8089                  */
8090                 phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel,
8091                                                         sizeof(uint16_t),
8092                                                         GFP_KERNEL);
8093                 if (!phba->sli4_hba.fcp_cq_map) {
8094                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8095                                         "2545 Failed allocate memory for "
8096                                         "fast-path CQ map\n");
8097                         goto out_error;
8098                 }
8099         }
8100
8101         if (phba->cfg_nvme_io_channel) {
8102                 phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel,
8103                                                 sizeof(struct lpfc_queue *),
8104                                                 GFP_KERNEL);
8105                 if (!phba->sli4_hba.nvme_cq) {
8106                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8107                                         "6077 Failed allocate memory for "
8108                                         "fast-path CQ record array\n");
8109                         goto out_error;
8110                 }
8111
8112                 phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel,
8113                                                 sizeof(struct lpfc_queue *),
8114                                                 GFP_KERNEL);
8115                 if (!phba->sli4_hba.nvme_wq) {
8116                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8117                                         "2581 Failed allocate memory for "
8118                                         "fast-path NVME WQ record array\n");
8119                         goto out_error;
8120                 }
8121
8122                 /*
8123                  * Since the first EQ can have multiple CQs associated with it,
8124                  * this array is used to quickly see if we have a NVME fast-path
8125                  * CQ match.
8126                  */
8127                 phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel,
8128                                                         sizeof(uint16_t),
8129                                                         GFP_KERNEL);
8130                 if (!phba->sli4_hba.nvme_cq_map) {
8131                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8132                                         "6078 Failed allocate memory for "
8133                                         "fast-path CQ map\n");
8134                         goto out_error;
8135                 }
8136
8137                 if (phba->nvmet_support) {
8138                         phba->sli4_hba.nvmet_cqset = kcalloc(
8139                                         phba->cfg_nvmet_mrq,
8140                                         sizeof(struct lpfc_queue *),
8141                                         GFP_KERNEL);
8142                         if (!phba->sli4_hba.nvmet_cqset) {
8143                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8144                                         "3121 Fail allocate memory for "
8145                                         "fast-path CQ set array\n");
8146                                 goto out_error;
8147                         }
8148                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8149                                         phba->cfg_nvmet_mrq,
8150                                         sizeof(struct lpfc_queue *),
8151                                         GFP_KERNEL);
8152                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8153                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8154                                         "3122 Fail allocate memory for "
8155                                         "fast-path RQ set hdr array\n");
8156                                 goto out_error;
8157                         }
8158                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8159                                         phba->cfg_nvmet_mrq,
8160                                         sizeof(struct lpfc_queue *),
8161                                         GFP_KERNEL);
8162                         if (!phba->sli4_hba.nvmet_mrq_data) {
8163                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8164                                         "3124 Fail allocate memory for "
8165                                         "fast-path RQ set data array\n");
8166                                 goto out_error;
8167                         }
8168                 }
8169         }
8170
8171         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8172
8173         /* Create HBA Event Queues (EQs) */
8174         for (idx = 0; idx < io_channel; idx++) {
8175                 /* Create EQs */
8176                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
8177                                               phba->sli4_hba.eq_ecount);
8178                 if (!qdesc) {
8179                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8180                                         "0497 Failed allocate EQ (%d)\n", idx);
8181                         goto out_error;
8182                 }
8183                 phba->sli4_hba.hba_eq[idx] = qdesc;
8184         }
8185
8186         /* FCP and NVME io channels are not required to be balanced */
8187
8188         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8189                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8190                         goto out_error;
8191
8192         for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++)
8193                 if (lpfc_alloc_nvme_wq_cq(phba, idx))
8194                         goto out_error;
8195
8196         if (phba->nvmet_support) {
8197                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8198                         qdesc = lpfc_sli4_queue_alloc(phba,
8199                                         phba->sli4_hba.cq_esize,
8200                                         phba->sli4_hba.cq_ecount);
8201                         if (!qdesc) {
8202                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8203                                         "3142 Failed allocate NVME "
8204                                         "CQ Set (%d)\n", idx);
8205                                 goto out_error;
8206                         }
8207                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8208                 }
8209         }
8210
8211         /*
8212          * Create Slow Path Completion Queues (CQs)
8213          */
8214
8215         /* Create slow-path Mailbox Command Complete Queue */
8216         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8217                                       phba->sli4_hba.cq_ecount);
8218         if (!qdesc) {
8219                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8220                                 "0500 Failed allocate slow-path mailbox CQ\n");
8221                 goto out_error;
8222         }
8223         phba->sli4_hba.mbx_cq = qdesc;
8224
8225         /* Create slow-path ELS Complete Queue */
8226         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8227                                       phba->sli4_hba.cq_ecount);
8228         if (!qdesc) {
8229                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8230                                 "0501 Failed allocate slow-path ELS CQ\n");
8231                 goto out_error;
8232         }
8233         phba->sli4_hba.els_cq = qdesc;
8234
8235
8236         /*
8237          * Create Slow Path Work Queues (WQs)
8238          */
8239
8240         /* Create Mailbox Command Queue */
8241
8242         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
8243                                       phba->sli4_hba.mq_ecount);
8244         if (!qdesc) {
8245                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8246                                 "0505 Failed allocate slow-path MQ\n");
8247                 goto out_error;
8248         }
8249         phba->sli4_hba.mbx_wq = qdesc;
8250
8251         /*
8252          * Create ELS Work Queues
8253          */
8254
8255         /* Create slow-path ELS Work Queue */
8256         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8257                                       phba->sli4_hba.wq_ecount);
8258         if (!qdesc) {
8259                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8260                                 "0504 Failed allocate slow-path ELS WQ\n");
8261                 goto out_error;
8262         }
8263         phba->sli4_hba.els_wq = qdesc;
8264         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8265
8266         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8267                 /* Create NVME LS Complete Queue */
8268                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
8269                                               phba->sli4_hba.cq_ecount);
8270                 if (!qdesc) {
8271                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8272                                         "6079 Failed allocate NVME LS CQ\n");
8273                         goto out_error;
8274                 }
8275                 phba->sli4_hba.nvmels_cq = qdesc;
8276
8277                 /* Create NVME LS Work Queue */
8278                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
8279                                               phba->sli4_hba.wq_ecount);
8280                 if (!qdesc) {
8281                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8282                                         "6080 Failed allocate NVME LS WQ\n");
8283                         goto out_error;
8284                 }
8285                 phba->sli4_hba.nvmels_wq = qdesc;
8286                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8287         }
8288
8289         /*
8290          * Create Receive Queue (RQ)
8291          */
8292
8293         /* Create Receive Queue for header */
8294         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8295                                       phba->sli4_hba.rq_ecount);
8296         if (!qdesc) {
8297                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8298                                 "0506 Failed allocate receive HRQ\n");
8299                 goto out_error;
8300         }
8301         phba->sli4_hba.hdr_rq = qdesc;
8302
8303         /* Create Receive Queue for data */
8304         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
8305                                       phba->sli4_hba.rq_ecount);
8306         if (!qdesc) {
8307                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8308                                 "0507 Failed allocate receive DRQ\n");
8309                 goto out_error;
8310         }
8311         phba->sli4_hba.dat_rq = qdesc;
8312
8313         if (phba->nvmet_support) {
8314                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8315                         /* Create NVMET Receive Queue for header */
8316                         qdesc = lpfc_sli4_queue_alloc(phba,
8317                                                       phba->sli4_hba.rq_esize,
8318                                                       LPFC_NVMET_RQE_DEF_COUNT);
8319                         if (!qdesc) {
8320                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8321                                                 "3146 Failed allocate "
8322                                                 "receive HRQ\n");
8323                                 goto out_error;
8324                         }
8325                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
8326
8327                         /* Only needed for header of RQ pair */
8328                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
8329                                               GFP_KERNEL);
8330                         if (qdesc->rqbp == NULL) {
8331                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8332                                                 "6131 Failed allocate "
8333                                                 "Header RQBP\n");
8334                                 goto out_error;
8335                         }
8336
8337                         /* Put list in known state in case driver load fails. */
8338                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
8339
8340                         /* Create NVMET Receive Queue for data */
8341                         qdesc = lpfc_sli4_queue_alloc(phba,
8342                                                       phba->sli4_hba.rq_esize,
8343                                                       LPFC_NVMET_RQE_DEF_COUNT);
8344                         if (!qdesc) {
8345                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8346                                                 "3156 Failed allocate "
8347                                                 "receive DRQ\n");
8348                                 goto out_error;
8349                         }
8350                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
8351                 }
8352         }
8353
8354         /* Create the Queues needed for Flash Optimized Fabric operations */
8355         if (phba->cfg_fof)
8356                 lpfc_fof_queue_create(phba);
8357         return 0;
8358
8359 out_error:
8360         lpfc_sli4_queue_destroy(phba);
8361         return -ENOMEM;
8362 }
8363
8364 static inline void
8365 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
8366 {
8367         if (*qp != NULL) {
8368                 lpfc_sli4_queue_free(*qp);
8369                 *qp = NULL;
8370         }
8371 }
8372
8373 static inline void
8374 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
8375 {
8376         int idx;
8377
8378         if (*qs == NULL)
8379                 return;
8380
8381         for (idx = 0; idx < max; idx++)
8382                 __lpfc_sli4_release_queue(&(*qs)[idx]);
8383
8384         kfree(*qs);
8385         *qs = NULL;
8386 }
8387
8388 static inline void
8389 lpfc_sli4_release_queue_map(uint16_t **qmap)
8390 {
8391         if (*qmap != NULL) {
8392                 kfree(*qmap);
8393                 *qmap = NULL;
8394         }
8395 }
8396
8397 /**
8398  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
8399  * @phba: pointer to lpfc hba data structure.
8400  *
8401  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
8402  * operation.
8403  *
8404  * Return codes
8405  *      0 - successful
8406  *      -ENOMEM - No available memory
8407  *      -EIO - The mailbox failed to complete successfully.
8408  **/
8409 void
8410 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
8411 {
8412         if (phba->cfg_fof)
8413                 lpfc_fof_queue_destroy(phba);
8414
8415         /* Release HBA eqs */
8416         lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs);
8417
8418         /* Release FCP cqs */
8419         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq,
8420                                  phba->cfg_fcp_io_channel);
8421
8422         /* Release FCP wqs */
8423         lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq,
8424                                  phba->cfg_fcp_io_channel);
8425
8426         /* Release FCP CQ mapping array */
8427         lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map);
8428
8429         /* Release NVME cqs */
8430         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq,
8431                                         phba->cfg_nvme_io_channel);
8432
8433         /* Release NVME wqs */
8434         lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq,
8435                                         phba->cfg_nvme_io_channel);
8436
8437         /* Release NVME CQ mapping array */
8438         lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map);
8439
8440         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
8441                                         phba->cfg_nvmet_mrq);
8442
8443         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
8444                                         phba->cfg_nvmet_mrq);
8445         lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
8446                                         phba->cfg_nvmet_mrq);
8447
8448         /* Release mailbox command work queue */
8449         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
8450
8451         /* Release ELS work queue */
8452         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
8453
8454         /* Release ELS work queue */
8455         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
8456
8457         /* Release unsolicited receive queue */
8458         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
8459         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
8460
8461         /* Release ELS complete queue */
8462         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
8463
8464         /* Release NVME LS complete queue */
8465         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
8466
8467         /* Release mailbox command complete queue */
8468         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
8469
8470         /* Everything on this list has been freed */
8471         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8472 }
8473
8474 int
8475 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
8476 {
8477         struct lpfc_rqb *rqbp;
8478         struct lpfc_dmabuf *h_buf;
8479         struct rqb_dmabuf *rqb_buffer;
8480
8481         rqbp = rq->rqbp;
8482         while (!list_empty(&rqbp->rqb_buffer_list)) {
8483                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
8484                                  struct lpfc_dmabuf, list);
8485
8486                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
8487                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
8488                 rqbp->buffer_count--;
8489         }
8490         return 1;
8491 }
8492
8493 static int
8494 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
8495         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
8496         int qidx, uint32_t qtype)
8497 {
8498         struct lpfc_sli_ring *pring;
8499         int rc;
8500
8501         if (!eq || !cq || !wq) {
8502                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8503                         "6085 Fast-path %s (%d) not allocated\n",
8504                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
8505                 return -ENOMEM;
8506         }
8507
8508         /* create the Cq first */
8509         rc = lpfc_cq_create(phba, cq, eq,
8510                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
8511         if (rc) {
8512                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8513                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
8514                         qidx, (uint32_t)rc);
8515                 return rc;
8516         }
8517
8518         if (qtype != LPFC_MBOX) {
8519                 /* Setup nvme_cq_map for fast lookup */
8520                 if (cq_map)
8521                         *cq_map = cq->queue_id;
8522
8523                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8524                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
8525                         qidx, cq->queue_id, qidx, eq->queue_id);
8526
8527                 /* create the wq */
8528                 rc = lpfc_wq_create(phba, wq, cq, qtype);
8529                 if (rc) {
8530                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8531                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
8532                                 qidx, (uint32_t)rc);
8533                         /* no need to tear down cq - caller will do so */
8534                         return rc;
8535                 }
8536
8537                 /* Bind this CQ/WQ to the NVME ring */
8538                 pring = wq->pring;
8539                 pring->sli.sli4.wqp = (void *)wq;
8540                 cq->pring = pring;
8541
8542                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8543                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
8544                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
8545         } else {
8546                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
8547                 if (rc) {
8548                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8549                                 "0539 Failed setup of slow-path MQ: "
8550                                 "rc = 0x%x\n", rc);
8551                         /* no need to tear down cq - caller will do so */
8552                         return rc;
8553                 }
8554
8555                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8556                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
8557                         phba->sli4_hba.mbx_wq->queue_id,
8558                         phba->sli4_hba.mbx_cq->queue_id);
8559         }
8560
8561         return 0;
8562 }
8563
8564 /**
8565  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
8566  * @phba: pointer to lpfc hba data structure.
8567  *
8568  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
8569  * operation.
8570  *
8571  * Return codes
8572  *      0 - successful
8573  *      -ENOMEM - No available memory
8574  *      -EIO - The mailbox failed to complete successfully.
8575  **/
8576 int
8577 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
8578 {
8579         uint32_t shdr_status, shdr_add_status;
8580         union lpfc_sli4_cfg_shdr *shdr;
8581         LPFC_MBOXQ_t *mboxq;
8582         int qidx;
8583         uint32_t length, io_channel;
8584         int rc = -ENOMEM;
8585
8586         /* Check for dual-ULP support */
8587         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8588         if (!mboxq) {
8589                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8590                                 "3249 Unable to allocate memory for "
8591                                 "QUERY_FW_CFG mailbox command\n");
8592                 return -ENOMEM;
8593         }
8594         length = (sizeof(struct lpfc_mbx_query_fw_config) -
8595                   sizeof(struct lpfc_sli4_cfg_mhdr));
8596         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8597                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
8598                          length, LPFC_SLI4_MBX_EMBED);
8599
8600         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8601
8602         shdr = (union lpfc_sli4_cfg_shdr *)
8603                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8604         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8605         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8606         if (shdr_status || shdr_add_status || rc) {
8607                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8608                                 "3250 QUERY_FW_CFG mailbox failed with status "
8609                                 "x%x add_status x%x, mbx status x%x\n",
8610                                 shdr_status, shdr_add_status, rc);
8611                 if (rc != MBX_TIMEOUT)
8612                         mempool_free(mboxq, phba->mbox_mem_pool);
8613                 rc = -ENXIO;
8614                 goto out_error;
8615         }
8616
8617         phba->sli4_hba.fw_func_mode =
8618                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
8619         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
8620         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
8621         phba->sli4_hba.physical_port =
8622                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
8623         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8624                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
8625                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
8626                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
8627
8628         if (rc != MBX_TIMEOUT)
8629                 mempool_free(mboxq, phba->mbox_mem_pool);
8630
8631         /*
8632          * Set up HBA Event Queues (EQs)
8633          */
8634         io_channel = phba->io_channel_irqs;
8635
8636         /* Set up HBA event queue */
8637         if (io_channel && !phba->sli4_hba.hba_eq) {
8638                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8639                                 "3147 Fast-path EQs not allocated\n");
8640                 rc = -ENOMEM;
8641                 goto out_error;
8642         }
8643         for (qidx = 0; qidx < io_channel; qidx++) {
8644                 if (!phba->sli4_hba.hba_eq[qidx]) {
8645                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8646                                         "0522 Fast-path EQ (%d) not "
8647                                         "allocated\n", qidx);
8648                         rc = -ENOMEM;
8649                         goto out_destroy;
8650                 }
8651                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx],
8652                                                 phba->cfg_fcp_imax);
8653                 if (rc) {
8654                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8655                                         "0523 Failed setup of fast-path EQ "
8656                                         "(%d), rc = 0x%x\n", qidx,
8657                                         (uint32_t)rc);
8658                         goto out_destroy;
8659                 }
8660                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8661                                 "2584 HBA EQ setup: queue[%d]-id=%d\n",
8662                                 qidx, phba->sli4_hba.hba_eq[qidx]->queue_id);
8663         }
8664
8665         if (phba->cfg_nvme_io_channel) {
8666                 if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) {
8667                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8668                                 "6084 Fast-path NVME %s array not allocated\n",
8669                                 (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ");
8670                         rc = -ENOMEM;
8671                         goto out_destroy;
8672                 }
8673
8674                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) {
8675                         rc = lpfc_create_wq_cq(phba,
8676                                         phba->sli4_hba.hba_eq[
8677                                                 qidx % io_channel],
8678                                         phba->sli4_hba.nvme_cq[qidx],
8679                                         phba->sli4_hba.nvme_wq[qidx],
8680                                         &phba->sli4_hba.nvme_cq_map[qidx],
8681                                         qidx, LPFC_NVME);
8682                         if (rc) {
8683                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8684                                         "6123 Failed to setup fastpath "
8685                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
8686                                         qidx, (uint32_t)rc);
8687                                 goto out_destroy;
8688                         }
8689                 }
8690         }
8691
8692         if (phba->cfg_fcp_io_channel) {
8693                 /* Set up fast-path FCP Response Complete Queue */
8694                 if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) {
8695                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8696                                 "3148 Fast-path FCP %s array not allocated\n",
8697                                 phba->sli4_hba.fcp_cq ? "WQ" : "CQ");
8698                         rc = -ENOMEM;
8699                         goto out_destroy;
8700                 }
8701
8702                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) {
8703                         rc = lpfc_create_wq_cq(phba,
8704                                         phba->sli4_hba.hba_eq[
8705                                                 qidx % io_channel],
8706                                         phba->sli4_hba.fcp_cq[qidx],
8707                                         phba->sli4_hba.fcp_wq[qidx],
8708                                         &phba->sli4_hba.fcp_cq_map[qidx],
8709                                         qidx, LPFC_FCP);
8710                         if (rc) {
8711                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8712                                         "0535 Failed to setup fastpath "
8713                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
8714                                         qidx, (uint32_t)rc);
8715                                 goto out_destroy;
8716                         }
8717                 }
8718         }
8719
8720         /*
8721          * Set up Slow Path Complete Queues (CQs)
8722          */
8723
8724         /* Set up slow-path MBOX CQ/MQ */
8725
8726         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
8727                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8728                                 "0528 %s not allocated\n",
8729                                 phba->sli4_hba.mbx_cq ?
8730                                 "Mailbox WQ" : "Mailbox CQ");
8731                 rc = -ENOMEM;
8732                 goto out_destroy;
8733         }
8734
8735         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8736                                phba->sli4_hba.mbx_cq,
8737                                phba->sli4_hba.mbx_wq,
8738                                NULL, 0, LPFC_MBOX);
8739         if (rc) {
8740                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8741                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
8742                         (uint32_t)rc);
8743                 goto out_destroy;
8744         }
8745         if (phba->nvmet_support) {
8746                 if (!phba->sli4_hba.nvmet_cqset) {
8747                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8748                                         "3165 Fast-path NVME CQ Set "
8749                                         "array not allocated\n");
8750                         rc = -ENOMEM;
8751                         goto out_destroy;
8752                 }
8753                 if (phba->cfg_nvmet_mrq > 1) {
8754                         rc = lpfc_cq_create_set(phba,
8755                                         phba->sli4_hba.nvmet_cqset,
8756                                         phba->sli4_hba.hba_eq,
8757                                         LPFC_WCQ, LPFC_NVMET);
8758                         if (rc) {
8759                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8760                                                 "3164 Failed setup of NVME CQ "
8761                                                 "Set, rc = 0x%x\n",
8762                                                 (uint32_t)rc);
8763                                 goto out_destroy;
8764                         }
8765                 } else {
8766                         /* Set up NVMET Receive Complete Queue */
8767                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
8768                                             phba->sli4_hba.hba_eq[0],
8769                                             LPFC_WCQ, LPFC_NVMET);
8770                         if (rc) {
8771                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8772                                                 "6089 Failed setup NVMET CQ: "
8773                                                 "rc = 0x%x\n", (uint32_t)rc);
8774                                 goto out_destroy;
8775                         }
8776                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8777                                         "6090 NVMET CQ setup: cq-id=%d, "
8778                                         "parent eq-id=%d\n",
8779                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
8780                                         phba->sli4_hba.hba_eq[0]->queue_id);
8781                 }
8782         }
8783
8784         /* Set up slow-path ELS WQ/CQ */
8785         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
8786                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8787                                 "0530 ELS %s not allocated\n",
8788                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
8789                 rc = -ENOMEM;
8790                 goto out_destroy;
8791         }
8792         rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8793                                         phba->sli4_hba.els_cq,
8794                                         phba->sli4_hba.els_wq,
8795                                         NULL, 0, LPFC_ELS);
8796         if (rc) {
8797                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8798                         "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
8799                         (uint32_t)rc);
8800                 goto out_destroy;
8801         }
8802         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8803                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
8804                         phba->sli4_hba.els_wq->queue_id,
8805                         phba->sli4_hba.els_cq->queue_id);
8806
8807         if (phba->cfg_nvme_io_channel) {
8808                 /* Set up NVME LS Complete Queue */
8809                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
8810                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8811                                         "6091 LS %s not allocated\n",
8812                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
8813                         rc = -ENOMEM;
8814                         goto out_destroy;
8815                 }
8816                 rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0],
8817                                         phba->sli4_hba.nvmels_cq,
8818                                         phba->sli4_hba.nvmels_wq,
8819                                         NULL, 0, LPFC_NVME_LS);
8820                 if (rc) {
8821                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8822                                 "0529 Failed setup of NVVME LS WQ/CQ: "
8823                                 "rc = 0x%x\n", (uint32_t)rc);
8824                         goto out_destroy;
8825                 }
8826
8827                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8828                                 "6096 ELS WQ setup: wq-id=%d, "
8829                                 "parent cq-id=%d\n",
8830                                 phba->sli4_hba.nvmels_wq->queue_id,
8831                                 phba->sli4_hba.nvmels_cq->queue_id);
8832         }
8833
8834         /*
8835          * Create NVMET Receive Queue (RQ)
8836          */
8837         if (phba->nvmet_support) {
8838                 if ((!phba->sli4_hba.nvmet_cqset) ||
8839                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
8840                     (!phba->sli4_hba.nvmet_mrq_data)) {
8841                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8842                                         "6130 MRQ CQ Queues not "
8843                                         "allocated\n");
8844                         rc = -ENOMEM;
8845                         goto out_destroy;
8846                 }
8847                 if (phba->cfg_nvmet_mrq > 1) {
8848                         rc = lpfc_mrq_create(phba,
8849                                              phba->sli4_hba.nvmet_mrq_hdr,
8850                                              phba->sli4_hba.nvmet_mrq_data,
8851                                              phba->sli4_hba.nvmet_cqset,
8852                                              LPFC_NVMET);
8853                         if (rc) {
8854                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8855                                                 "6098 Failed setup of NVMET "
8856                                                 "MRQ: rc = 0x%x\n",
8857                                                 (uint32_t)rc);
8858                                 goto out_destroy;
8859                         }
8860
8861                 } else {
8862                         rc = lpfc_rq_create(phba,
8863                                             phba->sli4_hba.nvmet_mrq_hdr[0],
8864                                             phba->sli4_hba.nvmet_mrq_data[0],
8865                                             phba->sli4_hba.nvmet_cqset[0],
8866                                             LPFC_NVMET);
8867                         if (rc) {
8868                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8869                                                 "6057 Failed setup of NVMET "
8870                                                 "Receive Queue: rc = 0x%x\n",
8871                                                 (uint32_t)rc);
8872                                 goto out_destroy;
8873                         }
8874
8875                         lpfc_printf_log(
8876                                 phba, KERN_INFO, LOG_INIT,
8877                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
8878                                 "dat-rq-id=%d parent cq-id=%d\n",
8879                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
8880                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
8881                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
8882
8883                 }
8884         }
8885
8886         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
8887                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8888                                 "0540 Receive Queue not allocated\n");
8889                 rc = -ENOMEM;
8890                 goto out_destroy;
8891         }
8892
8893         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
8894                             phba->sli4_hba.els_cq, LPFC_USOL);
8895         if (rc) {
8896                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8897                                 "0541 Failed setup of Receive Queue: "
8898                                 "rc = 0x%x\n", (uint32_t)rc);
8899                 goto out_destroy;
8900         }
8901
8902         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8903                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
8904                         "parent cq-id=%d\n",
8905                         phba->sli4_hba.hdr_rq->queue_id,
8906                         phba->sli4_hba.dat_rq->queue_id,
8907                         phba->sli4_hba.els_cq->queue_id);
8908
8909         if (phba->cfg_fof) {
8910                 rc = lpfc_fof_queue_setup(phba);
8911                 if (rc) {
8912                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8913                                         "0549 Failed setup of FOF Queues: "
8914                                         "rc = 0x%x\n", rc);
8915                         goto out_destroy;
8916                 }
8917         }
8918
8919         for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
8920                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
8921                                          phba->cfg_fcp_imax);
8922
8923         return 0;
8924
8925 out_destroy:
8926         lpfc_sli4_queue_unset(phba);
8927 out_error:
8928         return rc;
8929 }
8930
8931 /**
8932  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
8933  * @phba: pointer to lpfc hba data structure.
8934  *
8935  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
8936  * operation.
8937  *
8938  * Return codes
8939  *      0 - successful
8940  *      -ENOMEM - No available memory
8941  *      -EIO - The mailbox failed to complete successfully.
8942  **/
8943 void
8944 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
8945 {
8946         int qidx;
8947
8948         /* Unset the queues created for Flash Optimized Fabric operations */
8949         if (phba->cfg_fof)
8950                 lpfc_fof_queue_destroy(phba);
8951
8952         /* Unset mailbox command work queue */
8953         if (phba->sli4_hba.mbx_wq)
8954                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
8955
8956         /* Unset NVME LS work queue */
8957         if (phba->sli4_hba.nvmels_wq)
8958                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
8959
8960         /* Unset ELS work queue */
8961         if (phba->sli4_hba.els_wq)
8962                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
8963
8964         /* Unset unsolicited receive queue */
8965         if (phba->sli4_hba.hdr_rq)
8966                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
8967                                 phba->sli4_hba.dat_rq);
8968
8969         /* Unset FCP work queue */
8970         if (phba->sli4_hba.fcp_wq)
8971                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
8972                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]);
8973
8974         /* Unset NVME work queue */
8975         if (phba->sli4_hba.nvme_wq) {
8976                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8977                         lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]);
8978         }
8979
8980         /* Unset mailbox command complete queue */
8981         if (phba->sli4_hba.mbx_cq)
8982                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
8983
8984         /* Unset ELS complete queue */
8985         if (phba->sli4_hba.els_cq)
8986                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
8987
8988         /* Unset NVME LS complete queue */
8989         if (phba->sli4_hba.nvmels_cq)
8990                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
8991
8992         /* Unset NVME response complete queue */
8993         if (phba->sli4_hba.nvme_cq)
8994                 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
8995                         lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]);
8996
8997         /* Unset NVMET MRQ queue */
8998         if (phba->sli4_hba.nvmet_mrq_hdr) {
8999                 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9000                         lpfc_rq_destroy(phba,
9001                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9002                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9003         }
9004
9005         /* Unset NVMET CQ Set complete queue */
9006         if (phba->sli4_hba.nvmet_cqset) {
9007                 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9008                         lpfc_cq_destroy(phba,
9009                                         phba->sli4_hba.nvmet_cqset[qidx]);
9010         }
9011
9012         /* Unset FCP response complete queue */
9013         if (phba->sli4_hba.fcp_cq)
9014                 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
9015                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]);
9016
9017         /* Unset fast-path event queue */
9018         if (phba->sli4_hba.hba_eq)
9019                 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
9020                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]);
9021 }
9022
9023 /**
9024  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9025  * @phba: pointer to lpfc hba data structure.
9026  *
9027  * This routine is invoked to allocate and set up a pool of completion queue
9028  * events. The body of the completion queue event is a completion queue entry
9029  * CQE. For now, this pool is used for the interrupt service routine to queue
9030  * the following HBA completion queue events for the worker thread to process:
9031  *   - Mailbox asynchronous events
9032  *   - Receive queue completion unsolicited events
9033  * Later, this can be used for all the slow-path events.
9034  *
9035  * Return codes
9036  *      0 - successful
9037  *      -ENOMEM - No available memory
9038  **/
9039 static int
9040 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9041 {
9042         struct lpfc_cq_event *cq_event;
9043         int i;
9044
9045         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9046                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9047                 if (!cq_event)
9048                         goto out_pool_create_fail;
9049                 list_add_tail(&cq_event->list,
9050                               &phba->sli4_hba.sp_cqe_event_pool);
9051         }
9052         return 0;
9053
9054 out_pool_create_fail:
9055         lpfc_sli4_cq_event_pool_destroy(phba);
9056         return -ENOMEM;
9057 }
9058
9059 /**
9060  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9061  * @phba: pointer to lpfc hba data structure.
9062  *
9063  * This routine is invoked to free the pool of completion queue events at
9064  * driver unload time. Note that, it is the responsibility of the driver
9065  * cleanup routine to free all the outstanding completion-queue events
9066  * allocated from this pool back into the pool before invoking this routine
9067  * to destroy the pool.
9068  **/
9069 static void
9070 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9071 {
9072         struct lpfc_cq_event *cq_event, *next_cq_event;
9073
9074         list_for_each_entry_safe(cq_event, next_cq_event,
9075                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9076                 list_del(&cq_event->list);
9077                 kfree(cq_event);
9078         }
9079 }
9080
9081 /**
9082  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9083  * @phba: pointer to lpfc hba data structure.
9084  *
9085  * This routine is the lock free version of the API invoked to allocate a
9086  * completion-queue event from the free pool.
9087  *
9088  * Return: Pointer to the newly allocated completion-queue event if successful
9089  *         NULL otherwise.
9090  **/
9091 struct lpfc_cq_event *
9092 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9093 {
9094         struct lpfc_cq_event *cq_event = NULL;
9095
9096         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9097                          struct lpfc_cq_event, list);
9098         return cq_event;
9099 }
9100
9101 /**
9102  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9103  * @phba: pointer to lpfc hba data structure.
9104  *
9105  * This routine is the lock version of the API invoked to allocate a
9106  * completion-queue event from the free pool.
9107  *
9108  * Return: Pointer to the newly allocated completion-queue event if successful
9109  *         NULL otherwise.
9110  **/
9111 struct lpfc_cq_event *
9112 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9113 {
9114         struct lpfc_cq_event *cq_event;
9115         unsigned long iflags;
9116
9117         spin_lock_irqsave(&phba->hbalock, iflags);
9118         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9119         spin_unlock_irqrestore(&phba->hbalock, iflags);
9120         return cq_event;
9121 }
9122
9123 /**
9124  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9125  * @phba: pointer to lpfc hba data structure.
9126  * @cq_event: pointer to the completion queue event to be freed.
9127  *
9128  * This routine is the lock free version of the API invoked to release a
9129  * completion-queue event back into the free pool.
9130  **/
9131 void
9132 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9133                              struct lpfc_cq_event *cq_event)
9134 {
9135         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9136 }
9137
9138 /**
9139  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9140  * @phba: pointer to lpfc hba data structure.
9141  * @cq_event: pointer to the completion queue event to be freed.
9142  *
9143  * This routine is the lock version of the API invoked to release a
9144  * completion-queue event back into the free pool.
9145  **/
9146 void
9147 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9148                            struct lpfc_cq_event *cq_event)
9149 {
9150         unsigned long iflags;
9151         spin_lock_irqsave(&phba->hbalock, iflags);
9152         __lpfc_sli4_cq_event_release(phba, cq_event);
9153         spin_unlock_irqrestore(&phba->hbalock, iflags);
9154 }
9155
9156 /**
9157  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9158  * @phba: pointer to lpfc hba data structure.
9159  *
9160  * This routine is to free all the pending completion-queue events to the
9161  * back into the free pool for device reset.
9162  **/
9163 static void
9164 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9165 {
9166         LIST_HEAD(cqelist);
9167         struct lpfc_cq_event *cqe;
9168         unsigned long iflags;
9169
9170         /* Retrieve all the pending WCQEs from pending WCQE lists */
9171         spin_lock_irqsave(&phba->hbalock, iflags);
9172         /* Pending FCP XRI abort events */
9173         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9174                          &cqelist);
9175         /* Pending ELS XRI abort events */
9176         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9177                          &cqelist);
9178         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9179                 /* Pending NVME XRI abort events */
9180                 list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
9181                                  &cqelist);
9182         }
9183         /* Pending asynnc events */
9184         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9185                          &cqelist);
9186         spin_unlock_irqrestore(&phba->hbalock, iflags);
9187
9188         while (!list_empty(&cqelist)) {
9189                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9190                 lpfc_sli4_cq_event_release(phba, cqe);
9191         }
9192 }
9193
9194 /**
9195  * lpfc_pci_function_reset - Reset pci function.
9196  * @phba: pointer to lpfc hba data structure.
9197  *
9198  * This routine is invoked to request a PCI function reset. It will destroys
9199  * all resources assigned to the PCI function which originates this request.
9200  *
9201  * Return codes
9202  *      0 - successful
9203  *      -ENOMEM - No available memory
9204  *      -EIO - The mailbox failed to complete successfully.
9205  **/
9206 int
9207 lpfc_pci_function_reset(struct lpfc_hba *phba)
9208 {
9209         LPFC_MBOXQ_t *mboxq;
9210         uint32_t rc = 0, if_type;
9211         uint32_t shdr_status, shdr_add_status;
9212         uint32_t rdy_chk;
9213         uint32_t port_reset = 0;
9214         union lpfc_sli4_cfg_shdr *shdr;
9215         struct lpfc_register reg_data;
9216         uint16_t devid;
9217
9218         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9219         switch (if_type) {
9220         case LPFC_SLI_INTF_IF_TYPE_0:
9221                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9222                                                        GFP_KERNEL);
9223                 if (!mboxq) {
9224                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9225                                         "0494 Unable to allocate memory for "
9226                                         "issuing SLI_FUNCTION_RESET mailbox "
9227                                         "command\n");
9228                         return -ENOMEM;
9229                 }
9230
9231                 /* Setup PCI function reset mailbox-ioctl command */
9232                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9233                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9234                                  LPFC_SLI4_MBX_EMBED);
9235                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9236                 shdr = (union lpfc_sli4_cfg_shdr *)
9237                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9238                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9239                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9240                                          &shdr->response);
9241                 if (rc != MBX_TIMEOUT)
9242                         mempool_free(mboxq, phba->mbox_mem_pool);
9243                 if (shdr_status || shdr_add_status || rc) {
9244                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9245                                         "0495 SLI_FUNCTION_RESET mailbox "
9246                                         "failed with status x%x add_status x%x,"
9247                                         " mbx status x%x\n",
9248                                         shdr_status, shdr_add_status, rc);
9249                         rc = -ENXIO;
9250                 }
9251                 break;
9252         case LPFC_SLI_INTF_IF_TYPE_2:
9253 wait:
9254                 /*
9255                  * Poll the Port Status Register and wait for RDY for
9256                  * up to 30 seconds. If the port doesn't respond, treat
9257                  * it as an error.
9258                  */
9259                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9260                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9261                                 STATUSregaddr, &reg_data.word0)) {
9262                                 rc = -ENODEV;
9263                                 goto out;
9264                         }
9265                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9266                                 break;
9267                         msleep(20);
9268                 }
9269
9270                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9271                         phba->work_status[0] = readl(
9272                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9273                         phba->work_status[1] = readl(
9274                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9275                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9276                                         "2890 Port not ready, port status reg "
9277                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9278                                         reg_data.word0,
9279                                         phba->work_status[0],
9280                                         phba->work_status[1]);
9281                         rc = -ENODEV;
9282                         goto out;
9283                 }
9284
9285                 if (!port_reset) {
9286                         /*
9287                          * Reset the port now
9288                          */
9289                         reg_data.word0 = 0;
9290                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
9291                                LPFC_SLIPORT_LITTLE_ENDIAN);
9292                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9293                                LPFC_SLIPORT_INIT_PORT);
9294                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
9295                                CTRLregaddr);
9296                         /* flush */
9297                         pci_read_config_word(phba->pcidev,
9298                                              PCI_DEVICE_ID, &devid);
9299
9300                         port_reset = 1;
9301                         msleep(20);
9302                         goto wait;
9303                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
9304                         rc = -ENODEV;
9305                         goto out;
9306                 }
9307                 break;
9308
9309         case LPFC_SLI_INTF_IF_TYPE_1:
9310         default:
9311                 break;
9312         }
9313
9314 out:
9315         /* Catch the not-ready port failure after a port reset. */
9316         if (rc) {
9317                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9318                                 "3317 HBA not functional: IP Reset Failed "
9319                                 "try: echo fw_reset > board_mode\n");
9320                 rc = -ENODEV;
9321         }
9322
9323         return rc;
9324 }
9325
9326 /**
9327  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
9328  * @phba: pointer to lpfc hba data structure.
9329  *
9330  * This routine is invoked to set up the PCI device memory space for device
9331  * with SLI-4 interface spec.
9332  *
9333  * Return codes
9334  *      0 - successful
9335  *      other values - error
9336  **/
9337 static int
9338 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
9339 {
9340         struct pci_dev *pdev;
9341         unsigned long bar0map_len, bar1map_len, bar2map_len;
9342         int error = -ENODEV;
9343         uint32_t if_type;
9344
9345         /* Obtain PCI device reference */
9346         if (!phba->pcidev)
9347                 return error;
9348         else
9349                 pdev = phba->pcidev;
9350
9351         /* Set the device DMA mask size */
9352         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
9353          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
9354                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
9355                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
9356                         return error;
9357                 }
9358         }
9359
9360         /*
9361          * The BARs and register set definitions and offset locations are
9362          * dependent on the if_type.
9363          */
9364         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
9365                                   &phba->sli4_hba.sli_intf.word0)) {
9366                 return error;
9367         }
9368
9369         /* There is no SLI3 failback for SLI4 devices. */
9370         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
9371             LPFC_SLI_INTF_VALID) {
9372                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9373                                 "2894 SLI_INTF reg contents invalid "
9374                                 "sli_intf reg 0x%x\n",
9375                                 phba->sli4_hba.sli_intf.word0);
9376                 return error;
9377         }
9378
9379         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9380         /*
9381          * Get the bus address of SLI4 device Bar regions and the
9382          * number of bytes required by each mapping. The mapping of the
9383          * particular PCI BARs regions is dependent on the type of
9384          * SLI4 device.
9385          */
9386         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
9387                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
9388                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
9389
9390                 /*
9391                  * Map SLI4 PCI Config Space Register base to a kernel virtual
9392                  * addr
9393                  */
9394                 phba->sli4_hba.conf_regs_memmap_p =
9395                         ioremap(phba->pci_bar0_map, bar0map_len);
9396                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9397                         dev_printk(KERN_ERR, &pdev->dev,
9398                                    "ioremap failed for SLI4 PCI config "
9399                                    "registers.\n");
9400                         goto out;
9401                 }
9402                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
9403                 /* Set up BAR0 PCI config space register memory map */
9404                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9405         } else {
9406                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
9407                 bar0map_len = pci_resource_len(pdev, 1);
9408                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
9409                         dev_printk(KERN_ERR, &pdev->dev,
9410                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
9411                         goto out;
9412                 }
9413                 phba->sli4_hba.conf_regs_memmap_p =
9414                                 ioremap(phba->pci_bar0_map, bar0map_len);
9415                 if (!phba->sli4_hba.conf_regs_memmap_p) {
9416                         dev_printk(KERN_ERR, &pdev->dev,
9417                                 "ioremap failed for SLI4 PCI config "
9418                                 "registers.\n");
9419                                 goto out;
9420                 }
9421                 lpfc_sli4_bar0_register_memmap(phba, if_type);
9422         }
9423
9424         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9425             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
9426                 /*
9427                  * Map SLI4 if type 0 HBA Control Register base to a kernel
9428                  * virtual address and setup the registers.
9429                  */
9430                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
9431                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
9432                 phba->sli4_hba.ctrl_regs_memmap_p =
9433                                 ioremap(phba->pci_bar1_map, bar1map_len);
9434                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
9435                         dev_printk(KERN_ERR, &pdev->dev,
9436                            "ioremap failed for SLI4 HBA control registers.\n");
9437                         goto out_iounmap_conf;
9438                 }
9439                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
9440                 lpfc_sli4_bar1_register_memmap(phba);
9441         }
9442
9443         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
9444             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
9445                 /*
9446                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
9447                  * virtual address and setup the registers.
9448                  */
9449                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
9450                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
9451                 phba->sli4_hba.drbl_regs_memmap_p =
9452                                 ioremap(phba->pci_bar2_map, bar2map_len);
9453                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
9454                         dev_printk(KERN_ERR, &pdev->dev,
9455                            "ioremap failed for SLI4 HBA doorbell registers.\n");
9456                         goto out_iounmap_ctrl;
9457                 }
9458                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
9459                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
9460                 if (error)
9461                         goto out_iounmap_all;
9462         }
9463
9464         return 0;
9465
9466 out_iounmap_all:
9467         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9468 out_iounmap_ctrl:
9469         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9470 out_iounmap_conf:
9471         iounmap(phba->sli4_hba.conf_regs_memmap_p);
9472 out:
9473         return error;
9474 }
9475
9476 /**
9477  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
9478  * @phba: pointer to lpfc hba data structure.
9479  *
9480  * This routine is invoked to unset the PCI device memory space for device
9481  * with SLI-4 interface spec.
9482  **/
9483 static void
9484 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
9485 {
9486         uint32_t if_type;
9487         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9488
9489         switch (if_type) {
9490         case LPFC_SLI_INTF_IF_TYPE_0:
9491                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
9492                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
9493                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9494                 break;
9495         case LPFC_SLI_INTF_IF_TYPE_2:
9496                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
9497                 break;
9498         case LPFC_SLI_INTF_IF_TYPE_1:
9499         default:
9500                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9501                            "FATAL - unsupported SLI4 interface type - %d\n",
9502                            if_type);
9503                 break;
9504         }
9505 }
9506
9507 /**
9508  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
9509  * @phba: pointer to lpfc hba data structure.
9510  *
9511  * This routine is invoked to enable the MSI-X interrupt vectors to device
9512  * with SLI-3 interface specs.
9513  *
9514  * Return codes
9515  *   0 - successful
9516  *   other values - error
9517  **/
9518 static int
9519 lpfc_sli_enable_msix(struct lpfc_hba *phba)
9520 {
9521         int rc;
9522         LPFC_MBOXQ_t *pmb;
9523
9524         /* Set up MSI-X multi-message vectors */
9525         rc = pci_alloc_irq_vectors(phba->pcidev,
9526                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
9527         if (rc < 0) {
9528                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9529                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
9530                 goto vec_fail_out;
9531         }
9532
9533         /*
9534          * Assign MSI-X vectors to interrupt handlers
9535          */
9536
9537         /* vector-0 is associated to slow-path handler */
9538         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
9539                          &lpfc_sli_sp_intr_handler, 0,
9540                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
9541         if (rc) {
9542                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9543                                 "0421 MSI-X slow-path request_irq failed "
9544                                 "(%d)\n", rc);
9545                 goto msi_fail_out;
9546         }
9547
9548         /* vector-1 is associated to fast-path handler */
9549         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
9550                          &lpfc_sli_fp_intr_handler, 0,
9551                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
9552
9553         if (rc) {
9554                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9555                                 "0429 MSI-X fast-path request_irq failed "
9556                                 "(%d)\n", rc);
9557                 goto irq_fail_out;
9558         }
9559
9560         /*
9561          * Configure HBA MSI-X attention conditions to messages
9562          */
9563         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9564
9565         if (!pmb) {
9566                 rc = -ENOMEM;
9567                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9568                                 "0474 Unable to allocate memory for issuing "
9569                                 "MBOX_CONFIG_MSI command\n");
9570                 goto mem_fail_out;
9571         }
9572         rc = lpfc_config_msi(phba, pmb);
9573         if (rc)
9574                 goto mbx_fail_out;
9575         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9576         if (rc != MBX_SUCCESS) {
9577                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
9578                                 "0351 Config MSI mailbox command failed, "
9579                                 "mbxCmd x%x, mbxStatus x%x\n",
9580                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
9581                 goto mbx_fail_out;
9582         }
9583
9584         /* Free memory allocated for mailbox command */
9585         mempool_free(pmb, phba->mbox_mem_pool);
9586         return rc;
9587
9588 mbx_fail_out:
9589         /* Free memory allocated for mailbox command */
9590         mempool_free(pmb, phba->mbox_mem_pool);
9591
9592 mem_fail_out:
9593         /* free the irq already requested */
9594         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
9595
9596 irq_fail_out:
9597         /* free the irq already requested */
9598         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
9599
9600 msi_fail_out:
9601         /* Unconfigure MSI-X capability structure */
9602         pci_free_irq_vectors(phba->pcidev);
9603
9604 vec_fail_out:
9605         return rc;
9606 }
9607
9608 /**
9609  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
9610  * @phba: pointer to lpfc hba data structure.
9611  *
9612  * This routine is invoked to enable the MSI interrupt mode to device with
9613  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
9614  * enable the MSI vector. The device driver is responsible for calling the
9615  * request_irq() to register MSI vector with a interrupt the handler, which
9616  * is done in this function.
9617  *
9618  * Return codes
9619  *      0 - successful
9620  *      other values - error
9621  */
9622 static int
9623 lpfc_sli_enable_msi(struct lpfc_hba *phba)
9624 {
9625         int rc;
9626
9627         rc = pci_enable_msi(phba->pcidev);
9628         if (!rc)
9629                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9630                                 "0462 PCI enable MSI mode success.\n");
9631         else {
9632                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9633                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
9634                 return rc;
9635         }
9636
9637         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9638                          0, LPFC_DRIVER_NAME, phba);
9639         if (rc) {
9640                 pci_disable_msi(phba->pcidev);
9641                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9642                                 "0478 MSI request_irq failed (%d)\n", rc);
9643         }
9644         return rc;
9645 }
9646
9647 /**
9648  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
9649  * @phba: pointer to lpfc hba data structure.
9650  *
9651  * This routine is invoked to enable device interrupt and associate driver's
9652  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
9653  * spec. Depends on the interrupt mode configured to the driver, the driver
9654  * will try to fallback from the configured interrupt mode to an interrupt
9655  * mode which is supported by the platform, kernel, and device in the order
9656  * of:
9657  * MSI-X -> MSI -> IRQ.
9658  *
9659  * Return codes
9660  *   0 - successful
9661  *   other values - error
9662  **/
9663 static uint32_t
9664 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9665 {
9666         uint32_t intr_mode = LPFC_INTR_ERROR;
9667         int retval;
9668
9669         if (cfg_mode == 2) {
9670                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
9671                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
9672                 if (!retval) {
9673                         /* Now, try to enable MSI-X interrupt mode */
9674                         retval = lpfc_sli_enable_msix(phba);
9675                         if (!retval) {
9676                                 /* Indicate initialization to MSI-X mode */
9677                                 phba->intr_type = MSIX;
9678                                 intr_mode = 2;
9679                         }
9680                 }
9681         }
9682
9683         /* Fallback to MSI if MSI-X initialization failed */
9684         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9685                 retval = lpfc_sli_enable_msi(phba);
9686                 if (!retval) {
9687                         /* Indicate initialization to MSI mode */
9688                         phba->intr_type = MSI;
9689                         intr_mode = 1;
9690                 }
9691         }
9692
9693         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9694         if (phba->intr_type == NONE) {
9695                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
9696                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9697                 if (!retval) {
9698                         /* Indicate initialization to INTx mode */
9699                         phba->intr_type = INTx;
9700                         intr_mode = 0;
9701                 }
9702         }
9703         return intr_mode;
9704 }
9705
9706 /**
9707  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
9708  * @phba: pointer to lpfc hba data structure.
9709  *
9710  * This routine is invoked to disable device interrupt and disassociate the
9711  * driver's interrupt handler(s) from interrupt vector(s) to device with
9712  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
9713  * release the interrupt vector(s) for the message signaled interrupt.
9714  **/
9715 static void
9716 lpfc_sli_disable_intr(struct lpfc_hba *phba)
9717 {
9718         int nr_irqs, i;
9719
9720         if (phba->intr_type == MSIX)
9721                 nr_irqs = LPFC_MSIX_VECTORS;
9722         else
9723                 nr_irqs = 1;
9724
9725         for (i = 0; i < nr_irqs; i++)
9726                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
9727         pci_free_irq_vectors(phba->pcidev);
9728
9729         /* Reset interrupt management states */
9730         phba->intr_type = NONE;
9731         phba->sli.slistat.sli_intr = 0;
9732 }
9733
9734 /**
9735  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
9736  * @phba: pointer to lpfc hba data structure.
9737  * @vectors: number of msix vectors allocated.
9738  *
9739  * The routine will figure out the CPU affinity assignment for every
9740  * MSI-X vector allocated for the HBA.  The hba_eq_hdl will be updated
9741  * with a pointer to the CPU mask that defines ALL the CPUs this vector
9742  * can be associated with. If the vector can be unquely associated with
9743  * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu.
9744  * In addition, the CPU to IO channel mapping will be calculated
9745  * and the phba->sli4_hba.cpu_map array will reflect this.
9746  */
9747 static void
9748 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
9749 {
9750         struct lpfc_vector_map_info *cpup;
9751         int index = 0;
9752         int vec = 0;
9753         int cpu;
9754 #ifdef CONFIG_X86
9755         struct cpuinfo_x86 *cpuinfo;
9756 #endif
9757
9758         /* Init cpu_map array */
9759         memset(phba->sli4_hba.cpu_map, 0xff,
9760                (sizeof(struct lpfc_vector_map_info) *
9761                phba->sli4_hba.num_present_cpu));
9762
9763         /* Update CPU map with physical id and core id of each CPU */
9764         cpup = phba->sli4_hba.cpu_map;
9765         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
9766 #ifdef CONFIG_X86
9767                 cpuinfo = &cpu_data(cpu);
9768                 cpup->phys_id = cpuinfo->phys_proc_id;
9769                 cpup->core_id = cpuinfo->cpu_core_id;
9770 #else
9771                 /* No distinction between CPUs for other platforms */
9772                 cpup->phys_id = 0;
9773                 cpup->core_id = 0;
9774 #endif
9775                 cpup->channel_id = index;  /* For now round robin */
9776                 cpup->irq = pci_irq_vector(phba->pcidev, vec);
9777                 vec++;
9778                 if (vec >= vectors)
9779                         vec = 0;
9780                 index++;
9781                 if (index >= phba->cfg_fcp_io_channel)
9782                         index = 0;
9783                 cpup++;
9784         }
9785 }
9786
9787
9788 /**
9789  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
9790  * @phba: pointer to lpfc hba data structure.
9791  *
9792  * This routine is invoked to enable the MSI-X interrupt vectors to device
9793  * with SLI-4 interface spec.
9794  *
9795  * Return codes
9796  * 0 - successful
9797  * other values - error
9798  **/
9799 static int
9800 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
9801 {
9802         int vectors, rc, index;
9803         char *name;
9804
9805         /* Set up MSI-X multi-message vectors */
9806         vectors = phba->io_channel_irqs;
9807         if (phba->cfg_fof)
9808                 vectors++;
9809
9810         rc = pci_alloc_irq_vectors(phba->pcidev,
9811                                 (phba->nvmet_support) ? 1 : 2,
9812                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
9813         if (rc < 0) {
9814                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9815                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
9816                 goto vec_fail_out;
9817         }
9818         vectors = rc;
9819
9820         /* Assign MSI-X vectors to interrupt handlers */
9821         for (index = 0; index < vectors; index++) {
9822                 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
9823                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
9824                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
9825                          LPFC_DRIVER_HANDLER_NAME"%d", index);
9826
9827                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9828                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9829                 atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1);
9830                 if (phba->cfg_fof && (index == (vectors - 1)))
9831                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
9832                                  &lpfc_sli4_fof_intr_handler, 0,
9833                                  name,
9834                                  &phba->sli4_hba.hba_eq_hdl[index]);
9835                 else
9836                         rc = request_irq(pci_irq_vector(phba->pcidev, index),
9837                                  &lpfc_sli4_hba_intr_handler, 0,
9838                                  name,
9839                                  &phba->sli4_hba.hba_eq_hdl[index]);
9840                 if (rc) {
9841                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9842                                         "0486 MSI-X fast-path (%d) "
9843                                         "request_irq failed (%d)\n", index, rc);
9844                         goto cfg_fail_out;
9845                 }
9846         }
9847
9848         if (phba->cfg_fof)
9849                 vectors--;
9850
9851         if (vectors != phba->io_channel_irqs) {
9852                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9853                                 "3238 Reducing IO channels to match number of "
9854                                 "MSI-X vectors, requested %d got %d\n",
9855                                 phba->io_channel_irqs, vectors);
9856                 if (phba->cfg_fcp_io_channel > vectors)
9857                         phba->cfg_fcp_io_channel = vectors;
9858                 if (phba->cfg_nvme_io_channel > vectors)
9859                         phba->cfg_nvme_io_channel = vectors;
9860                 if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel)
9861                         phba->io_channel_irqs = phba->cfg_fcp_io_channel;
9862                 else
9863                         phba->io_channel_irqs = phba->cfg_nvme_io_channel;
9864         }
9865         lpfc_cpu_affinity_check(phba, vectors);
9866
9867         return rc;
9868
9869 cfg_fail_out:
9870         /* free the irq already requested */
9871         for (--index; index >= 0; index--)
9872                 free_irq(pci_irq_vector(phba->pcidev, index),
9873                                 &phba->sli4_hba.hba_eq_hdl[index]);
9874
9875         /* Unconfigure MSI-X capability structure */
9876         pci_free_irq_vectors(phba->pcidev);
9877
9878 vec_fail_out:
9879         return rc;
9880 }
9881
9882 /**
9883  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9884  * @phba: pointer to lpfc hba data structure.
9885  *
9886  * This routine is invoked to enable the MSI interrupt mode to device with
9887  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9888  * to enable the MSI vector. The device driver is responsible for calling
9889  * the request_irq() to register MSI vector with a interrupt the handler,
9890  * which is done in this function.
9891  *
9892  * Return codes
9893  *      0 - successful
9894  *      other values - error
9895  **/
9896 static int
9897 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9898 {
9899         int rc, index;
9900
9901         rc = pci_enable_msi(phba->pcidev);
9902         if (!rc)
9903                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9904                                 "0487 PCI enable MSI mode success.\n");
9905         else {
9906                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9907                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
9908                 return rc;
9909         }
9910
9911         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9912                          0, LPFC_DRIVER_NAME, phba);
9913         if (rc) {
9914                 pci_disable_msi(phba->pcidev);
9915                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9916                                 "0490 MSI request_irq failed (%d)\n", rc);
9917                 return rc;
9918         }
9919
9920         for (index = 0; index < phba->io_channel_irqs; index++) {
9921                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9922                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9923         }
9924
9925         if (phba->cfg_fof) {
9926                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
9927                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
9928         }
9929         return 0;
9930 }
9931
9932 /**
9933  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9934  * @phba: pointer to lpfc hba data structure.
9935  *
9936  * This routine is invoked to enable device interrupt and associate driver's
9937  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9938  * interface spec. Depends on the interrupt mode configured to the driver,
9939  * the driver will try to fallback from the configured interrupt mode to an
9940  * interrupt mode which is supported by the platform, kernel, and device in
9941  * the order of:
9942  * MSI-X -> MSI -> IRQ.
9943  *
9944  * Return codes
9945  *      0 - successful
9946  *      other values - error
9947  **/
9948 static uint32_t
9949 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9950 {
9951         uint32_t intr_mode = LPFC_INTR_ERROR;
9952         int retval, idx;
9953
9954         if (cfg_mode == 2) {
9955                 /* Preparation before conf_msi mbox cmd */
9956                 retval = 0;
9957                 if (!retval) {
9958                         /* Now, try to enable MSI-X interrupt mode */
9959                         retval = lpfc_sli4_enable_msix(phba);
9960                         if (!retval) {
9961                                 /* Indicate initialization to MSI-X mode */
9962                                 phba->intr_type = MSIX;
9963                                 intr_mode = 2;
9964                         }
9965                 }
9966         }
9967
9968         /* Fallback to MSI if MSI-X initialization failed */
9969         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9970                 retval = lpfc_sli4_enable_msi(phba);
9971                 if (!retval) {
9972                         /* Indicate initialization to MSI mode */
9973                         phba->intr_type = MSI;
9974                         intr_mode = 1;
9975                 }
9976         }
9977
9978         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9979         if (phba->intr_type == NONE) {
9980                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9981                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9982                 if (!retval) {
9983                         struct lpfc_hba_eq_hdl *eqhdl;
9984
9985                         /* Indicate initialization to INTx mode */
9986                         phba->intr_type = INTx;
9987                         intr_mode = 0;
9988
9989                         for (idx = 0; idx < phba->io_channel_irqs; idx++) {
9990                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9991                                 eqhdl->idx = idx;
9992                                 eqhdl->phba = phba;
9993                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
9994                         }
9995                         if (phba->cfg_fof) {
9996                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
9997                                 eqhdl->idx = idx;
9998                                 eqhdl->phba = phba;
9999                                 atomic_set(&eqhdl->hba_eq_in_use, 1);
10000                         }
10001                 }
10002         }
10003         return intr_mode;
10004 }
10005
10006 /**
10007  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
10008  * @phba: pointer to lpfc hba data structure.
10009  *
10010  * This routine is invoked to disable device interrupt and disassociate
10011  * the driver's interrupt handler(s) from interrupt vector(s) to device
10012  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
10013  * will release the interrupt vector(s) for the message signaled interrupt.
10014  **/
10015 static void
10016 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
10017 {
10018         /* Disable the currently initialized interrupt mode */
10019         if (phba->intr_type == MSIX) {
10020                 int index;
10021
10022                 /* Free up MSI-X multi-message vectors */
10023                 for (index = 0; index < phba->io_channel_irqs; index++)
10024                         free_irq(pci_irq_vector(phba->pcidev, index),
10025                                         &phba->sli4_hba.hba_eq_hdl[index]);
10026
10027                 if (phba->cfg_fof)
10028                         free_irq(pci_irq_vector(phba->pcidev, index),
10029                                         &phba->sli4_hba.hba_eq_hdl[index]);
10030         } else {
10031                 free_irq(phba->pcidev->irq, phba);
10032         }
10033
10034         pci_free_irq_vectors(phba->pcidev);
10035
10036         /* Reset interrupt management states */
10037         phba->intr_type = NONE;
10038         phba->sli.slistat.sli_intr = 0;
10039 }
10040
10041 /**
10042  * lpfc_unset_hba - Unset SLI3 hba device initialization
10043  * @phba: pointer to lpfc hba data structure.
10044  *
10045  * This routine is invoked to unset the HBA device initialization steps to
10046  * a device with SLI-3 interface spec.
10047  **/
10048 static void
10049 lpfc_unset_hba(struct lpfc_hba *phba)
10050 {
10051         struct lpfc_vport *vport = phba->pport;
10052         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
10053
10054         spin_lock_irq(shost->host_lock);
10055         vport->load_flag |= FC_UNLOADING;
10056         spin_unlock_irq(shost->host_lock);
10057
10058         kfree(phba->vpi_bmask);
10059         kfree(phba->vpi_ids);
10060
10061         lpfc_stop_hba_timers(phba);
10062
10063         phba->pport->work_port_events = 0;
10064
10065         lpfc_sli_hba_down(phba);
10066
10067         lpfc_sli_brdrestart(phba);
10068
10069         lpfc_sli_disable_intr(phba);
10070
10071         return;
10072 }
10073
10074 /**
10075  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
10076  * @phba: Pointer to HBA context object.
10077  *
10078  * This function is called in the SLI4 code path to wait for completion
10079  * of device's XRIs exchange busy. It will check the XRI exchange busy
10080  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
10081  * that, it will check the XRI exchange busy on outstanding FCP and ELS
10082  * I/Os every 30 seconds, log error message, and wait forever. Only when
10083  * all XRI exchange busy complete, the driver unload shall proceed with
10084  * invoking the function reset ioctl mailbox command to the CNA and the
10085  * the rest of the driver unload resource release.
10086  **/
10087 static void
10088 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
10089 {
10090         int wait_time = 0;
10091         int nvme_xri_cmpl = 1;
10092         int nvmet_xri_cmpl = 1;
10093         int fcp_xri_cmpl = 1;
10094         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10095
10096         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10097                 fcp_xri_cmpl =
10098                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
10099         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10100                 nvme_xri_cmpl =
10101                         list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list);
10102                 nvmet_xri_cmpl =
10103                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10104         }
10105
10106         while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl ||
10107                !nvmet_xri_cmpl) {
10108                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10109                         if (!nvme_xri_cmpl)
10110                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10111                                                 "6100 NVME XRI exchange busy "
10112                                                 "wait time: %d seconds.\n",
10113                                                 wait_time/1000);
10114                         if (!fcp_xri_cmpl)
10115                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10116                                                 "2877 FCP XRI exchange busy "
10117                                                 "wait time: %d seconds.\n",
10118                                                 wait_time/1000);
10119                         if (!els_xri_cmpl)
10120                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10121                                                 "2878 ELS XRI exchange busy "
10122                                                 "wait time: %d seconds.\n",
10123                                                 wait_time/1000);
10124                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
10125                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
10126                 } else {
10127                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
10128                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
10129                 }
10130                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10131                         nvme_xri_cmpl = list_empty(
10132                                 &phba->sli4_hba.lpfc_abts_nvme_buf_list);
10133                         nvmet_xri_cmpl = list_empty(
10134                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10135                 }
10136
10137                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
10138                         fcp_xri_cmpl = list_empty(
10139                                 &phba->sli4_hba.lpfc_abts_scsi_buf_list);
10140
10141                 els_xri_cmpl =
10142                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10143
10144         }
10145 }
10146
10147 /**
10148  * lpfc_sli4_hba_unset - Unset the fcoe hba
10149  * @phba: Pointer to HBA context object.
10150  *
10151  * This function is called in the SLI4 code path to reset the HBA's FCoE
10152  * function. The caller is not required to hold any lock. This routine
10153  * issues PCI function reset mailbox command to reset the FCoE function.
10154  * At the end of the function, it calls lpfc_hba_down_post function to
10155  * free any pending commands.
10156  **/
10157 static void
10158 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
10159 {
10160         int wait_cnt = 0;
10161         LPFC_MBOXQ_t *mboxq;
10162         struct pci_dev *pdev = phba->pcidev;
10163
10164         lpfc_stop_hba_timers(phba);
10165         phba->sli4_hba.intr_enable = 0;
10166
10167         /*
10168          * Gracefully wait out the potential current outstanding asynchronous
10169          * mailbox command.
10170          */
10171
10172         /* First, block any pending async mailbox command from posted */
10173         spin_lock_irq(&phba->hbalock);
10174         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10175         spin_unlock_irq(&phba->hbalock);
10176         /* Now, trying to wait it out if we can */
10177         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10178                 msleep(10);
10179                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
10180                         break;
10181         }
10182         /* Forcefully release the outstanding mailbox command if timed out */
10183         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
10184                 spin_lock_irq(&phba->hbalock);
10185                 mboxq = phba->sli.mbox_active;
10186                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
10187                 __lpfc_mbox_cmpl_put(phba, mboxq);
10188                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10189                 phba->sli.mbox_active = NULL;
10190                 spin_unlock_irq(&phba->hbalock);
10191         }
10192
10193         /* Abort all iocbs associated with the hba */
10194         lpfc_sli_hba_iocb_abort(phba);
10195
10196         /* Wait for completion of device XRI exchange busy */
10197         lpfc_sli4_xri_exchange_busy_wait(phba);
10198
10199         /* Disable PCI subsystem interrupt */
10200         lpfc_sli4_disable_intr(phba);
10201
10202         /* Disable SR-IOV if enabled */
10203         if (phba->cfg_sriov_nr_virtfn)
10204                 pci_disable_sriov(pdev);
10205
10206         /* Stop kthread signal shall trigger work_done one more time */
10207         kthread_stop(phba->worker_thread);
10208
10209         /* Unset the queues shared with the hardware then release all
10210          * allocated resources.
10211          */
10212         lpfc_sli4_queue_unset(phba);
10213         lpfc_sli4_queue_destroy(phba);
10214
10215         /* Reset SLI4 HBA FCoE function */
10216         lpfc_pci_function_reset(phba);
10217
10218         /* Stop the SLI4 device port */
10219         phba->pport->work_port_events = 0;
10220 }
10221
10222  /**
10223  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
10224  * @phba: Pointer to HBA context object.
10225  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10226  *
10227  * This function is called in the SLI4 code path to read the port's
10228  * sli4 capabilities.
10229  *
10230  * This function may be be called from any context that can block-wait
10231  * for the completion.  The expectation is that this routine is called
10232  * typically from probe_one or from the online routine.
10233  **/
10234 int
10235 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10236 {
10237         int rc;
10238         struct lpfc_mqe *mqe;
10239         struct lpfc_pc_sli4_params *sli4_params;
10240         uint32_t mbox_tmo;
10241
10242         rc = 0;
10243         mqe = &mboxq->u.mqe;
10244
10245         /* Read the port's SLI4 Parameters port capabilities */
10246         lpfc_pc_sli4_params(mboxq);
10247         if (!phba->sli4_hba.intr_enable)
10248                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10249         else {
10250                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10251                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10252         }
10253
10254         if (unlikely(rc))
10255                 return 1;
10256
10257         sli4_params = &phba->sli4_hba.pc_sli4_params;
10258         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
10259         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
10260         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
10261         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
10262                                              &mqe->un.sli4_params);
10263         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
10264                                              &mqe->un.sli4_params);
10265         sli4_params->proto_types = mqe->un.sli4_params.word3;
10266         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
10267         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
10268         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
10269         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
10270         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
10271         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
10272         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
10273         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
10274         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
10275         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
10276         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
10277         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
10278         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
10279         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
10280         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
10281         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
10282         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
10283         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
10284         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
10285         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
10286
10287         /* Make sure that sge_supp_len can be handled by the driver */
10288         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10289                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10290
10291         return rc;
10292 }
10293
10294 /**
10295  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
10296  * @phba: Pointer to HBA context object.
10297  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
10298  *
10299  * This function is called in the SLI4 code path to read the port's
10300  * sli4 capabilities.
10301  *
10302  * This function may be be called from any context that can block-wait
10303  * for the completion.  The expectation is that this routine is called
10304  * typically from probe_one or from the online routine.
10305  **/
10306 int
10307 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
10308 {
10309         int rc;
10310         struct lpfc_mqe *mqe = &mboxq->u.mqe;
10311         struct lpfc_pc_sli4_params *sli4_params;
10312         uint32_t mbox_tmo;
10313         int length;
10314         struct lpfc_sli4_parameters *mbx_sli4_parameters;
10315
10316         /*
10317          * By default, the driver assumes the SLI4 port requires RPI
10318          * header postings.  The SLI4_PARAM response will correct this
10319          * assumption.
10320          */
10321         phba->sli4_hba.rpi_hdrs_in_use = 1;
10322
10323         /* Read the port's SLI4 Config Parameters */
10324         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
10325                   sizeof(struct lpfc_sli4_cfg_mhdr));
10326         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10327                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
10328                          length, LPFC_SLI4_MBX_EMBED);
10329         if (!phba->sli4_hba.intr_enable)
10330                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10331         else {
10332                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
10333                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
10334         }
10335         if (unlikely(rc))
10336                 return rc;
10337         sli4_params = &phba->sli4_hba.pc_sli4_params;
10338         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
10339         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
10340         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
10341         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
10342         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
10343                                              mbx_sli4_parameters);
10344         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
10345                                              mbx_sli4_parameters);
10346         if (bf_get(cfg_phwq, mbx_sli4_parameters))
10347                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
10348         else
10349                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
10350         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
10351         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
10352         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
10353         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
10354         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
10355         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
10356         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
10357         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
10358         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
10359                                             mbx_sli4_parameters);
10360         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
10361         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
10362                                            mbx_sli4_parameters);
10363         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
10364         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
10365         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
10366                               bf_get(cfg_xib, mbx_sli4_parameters));
10367
10368         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
10369             !phba->nvme_support) {
10370                 phba->nvme_support = 0;
10371                 phba->nvmet_support = 0;
10372                 phba->cfg_nvmet_mrq = 0;
10373                 phba->cfg_nvme_io_channel = 0;
10374                 phba->io_channel_irqs = phba->cfg_fcp_io_channel;
10375                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
10376                                 "6101 Disabling NVME support: "
10377                                 "Not supported by firmware: %d %d\n",
10378                                 bf_get(cfg_nvme, mbx_sli4_parameters),
10379                                 bf_get(cfg_xib, mbx_sli4_parameters));
10380
10381                 /* If firmware doesn't support NVME, just use SCSI support */
10382                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
10383                         return -ENODEV;
10384                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
10385         }
10386
10387         if (bf_get(cfg_xib, mbx_sli4_parameters) && phba->cfg_suppress_rsp)
10388                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
10389
10390         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
10391                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
10392
10393         /* Make sure that sge_supp_len can be handled by the driver */
10394         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
10395                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
10396
10397         /*
10398          * Issue IOs with CDB embedded in WQE to minimized the number
10399          * of DMAs the firmware has to do. Setting this to 1 also forces
10400          * the driver to use 128 bytes WQEs for FCP IOs.
10401          */
10402         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
10403                 phba->fcp_embed_io = 1;
10404         else
10405                 phba->fcp_embed_io = 0;
10406
10407         /*
10408          * Check if the SLI port supports MDS Diagnostics
10409          */
10410         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
10411                 phba->mds_diags_support = 1;
10412         else
10413                 phba->mds_diags_support = 0;
10414         return 0;
10415 }
10416
10417 /**
10418  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
10419  * @pdev: pointer to PCI device
10420  * @pid: pointer to PCI device identifier
10421  *
10422  * This routine is to be called to attach a device with SLI-3 interface spec
10423  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10424  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10425  * information of the device and driver to see if the driver state that it can
10426  * support this kind of device. If the match is successful, the driver core
10427  * invokes this routine. If this routine determines it can claim the HBA, it
10428  * does all the initialization that it needs to do to handle the HBA properly.
10429  *
10430  * Return code
10431  *      0 - driver can claim the device
10432  *      negative value - driver can not claim the device
10433  **/
10434 static int
10435 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
10436 {
10437         struct lpfc_hba   *phba;
10438         struct lpfc_vport *vport = NULL;
10439         struct Scsi_Host  *shost = NULL;
10440         int error;
10441         uint32_t cfg_mode, intr_mode;
10442
10443         /* Allocate memory for HBA structure */
10444         phba = lpfc_hba_alloc(pdev);
10445         if (!phba)
10446                 return -ENOMEM;
10447
10448         /* Perform generic PCI device enabling operation */
10449         error = lpfc_enable_pci_dev(phba);
10450         if (error)
10451                 goto out_free_phba;
10452
10453         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
10454         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
10455         if (error)
10456                 goto out_disable_pci_dev;
10457
10458         /* Set up SLI-3 specific device PCI memory space */
10459         error = lpfc_sli_pci_mem_setup(phba);
10460         if (error) {
10461                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10462                                 "1402 Failed to set up pci memory space.\n");
10463                 goto out_disable_pci_dev;
10464         }
10465
10466         /* Set up SLI-3 specific device driver resources */
10467         error = lpfc_sli_driver_resource_setup(phba);
10468         if (error) {
10469                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10470                                 "1404 Failed to set up driver resource.\n");
10471                 goto out_unset_pci_mem_s3;
10472         }
10473
10474         /* Initialize and populate the iocb list per host */
10475
10476         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
10477         if (error) {
10478                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10479                                 "1405 Failed to initialize iocb list.\n");
10480                 goto out_unset_driver_resource_s3;
10481         }
10482
10483         /* Set up common device driver resources */
10484         error = lpfc_setup_driver_resource_phase2(phba);
10485         if (error) {
10486                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10487                                 "1406 Failed to set up driver resource.\n");
10488                 goto out_free_iocb_list;
10489         }
10490
10491         /* Get the default values for Model Name and Description */
10492         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10493
10494         /* Create SCSI host to the physical port */
10495         error = lpfc_create_shost(phba);
10496         if (error) {
10497                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10498                                 "1407 Failed to create scsi host.\n");
10499                 goto out_unset_driver_resource;
10500         }
10501
10502         /* Configure sysfs attributes */
10503         vport = phba->pport;
10504         error = lpfc_alloc_sysfs_attr(vport);
10505         if (error) {
10506                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10507                                 "1476 Failed to allocate sysfs attr\n");
10508                 goto out_destroy_shost;
10509         }
10510
10511         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10512         /* Now, trying to enable interrupt and bring up the device */
10513         cfg_mode = phba->cfg_use_msi;
10514         while (true) {
10515                 /* Put device to a known state before enabling interrupt */
10516                 lpfc_stop_port(phba);
10517                 /* Configure and enable interrupt */
10518                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
10519                 if (intr_mode == LPFC_INTR_ERROR) {
10520                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10521                                         "0431 Failed to enable interrupt.\n");
10522                         error = -ENODEV;
10523                         goto out_free_sysfs_attr;
10524                 }
10525                 /* SLI-3 HBA setup */
10526                 if (lpfc_sli_hba_setup(phba)) {
10527                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10528                                         "1477 Failed to set up hba\n");
10529                         error = -ENODEV;
10530                         goto out_remove_device;
10531                 }
10532
10533                 /* Wait 50ms for the interrupts of previous mailbox commands */
10534                 msleep(50);
10535                 /* Check active interrupts on message signaled interrupts */
10536                 if (intr_mode == 0 ||
10537                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
10538                         /* Log the current active interrupt mode */
10539                         phba->intr_mode = intr_mode;
10540                         lpfc_log_intr_mode(phba, intr_mode);
10541                         break;
10542                 } else {
10543                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10544                                         "0447 Configure interrupt mode (%d) "
10545                                         "failed active interrupt test.\n",
10546                                         intr_mode);
10547                         /* Disable the current interrupt mode */
10548                         lpfc_sli_disable_intr(phba);
10549                         /* Try next level of interrupt mode */
10550                         cfg_mode = --intr_mode;
10551                 }
10552         }
10553
10554         /* Perform post initialization setup */
10555         lpfc_post_init_setup(phba);
10556
10557         /* Check if there are static vports to be created. */
10558         lpfc_create_static_vport(phba);
10559
10560         return 0;
10561
10562 out_remove_device:
10563         lpfc_unset_hba(phba);
10564 out_free_sysfs_attr:
10565         lpfc_free_sysfs_attr(vport);
10566 out_destroy_shost:
10567         lpfc_destroy_shost(phba);
10568 out_unset_driver_resource:
10569         lpfc_unset_driver_resource_phase2(phba);
10570 out_free_iocb_list:
10571         lpfc_free_iocb_list(phba);
10572 out_unset_driver_resource_s3:
10573         lpfc_sli_driver_resource_unset(phba);
10574 out_unset_pci_mem_s3:
10575         lpfc_sli_pci_mem_unset(phba);
10576 out_disable_pci_dev:
10577         lpfc_disable_pci_dev(phba);
10578         if (shost)
10579                 scsi_host_put(shost);
10580 out_free_phba:
10581         lpfc_hba_free(phba);
10582         return error;
10583 }
10584
10585 /**
10586  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
10587  * @pdev: pointer to PCI device
10588  *
10589  * This routine is to be called to disattach a device with SLI-3 interface
10590  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
10591  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10592  * device to be removed from the PCI subsystem properly.
10593  **/
10594 static void
10595 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
10596 {
10597         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
10598         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10599         struct lpfc_vport **vports;
10600         struct lpfc_hba   *phba = vport->phba;
10601         int i;
10602
10603         spin_lock_irq(&phba->hbalock);
10604         vport->load_flag |= FC_UNLOADING;
10605         spin_unlock_irq(&phba->hbalock);
10606
10607         lpfc_free_sysfs_attr(vport);
10608
10609         /* Release all the vports against this physical port */
10610         vports = lpfc_create_vport_work_array(phba);
10611         if (vports != NULL)
10612                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10613                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10614                                 continue;
10615                         fc_vport_terminate(vports[i]->fc_vport);
10616                 }
10617         lpfc_destroy_vport_work_array(phba, vports);
10618
10619         /* Remove FC host and then SCSI host with the physical port */
10620         fc_remove_host(shost);
10621         scsi_remove_host(shost);
10622
10623         lpfc_cleanup(vport);
10624
10625         /*
10626          * Bring down the SLI Layer. This step disable all interrupts,
10627          * clears the rings, discards all mailbox commands, and resets
10628          * the HBA.
10629          */
10630
10631         /* HBA interrupt will be disabled after this call */
10632         lpfc_sli_hba_down(phba);
10633         /* Stop kthread signal shall trigger work_done one more time */
10634         kthread_stop(phba->worker_thread);
10635         /* Final cleanup of txcmplq and reset the HBA */
10636         lpfc_sli_brdrestart(phba);
10637
10638         kfree(phba->vpi_bmask);
10639         kfree(phba->vpi_ids);
10640
10641         lpfc_stop_hba_timers(phba);
10642         spin_lock_irq(&phba->hbalock);
10643         list_del_init(&vport->listentry);
10644         spin_unlock_irq(&phba->hbalock);
10645
10646         lpfc_debugfs_terminate(vport);
10647
10648         /* Disable SR-IOV if enabled */
10649         if (phba->cfg_sriov_nr_virtfn)
10650                 pci_disable_sriov(pdev);
10651
10652         /* Disable interrupt */
10653         lpfc_sli_disable_intr(phba);
10654
10655         scsi_host_put(shost);
10656
10657         /*
10658          * Call scsi_free before mem_free since scsi bufs are released to their
10659          * corresponding pools here.
10660          */
10661         lpfc_scsi_free(phba);
10662         lpfc_mem_free_all(phba);
10663
10664         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
10665                           phba->hbqslimp.virt, phba->hbqslimp.phys);
10666
10667         /* Free resources associated with SLI2 interface */
10668         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
10669                           phba->slim2p.virt, phba->slim2p.phys);
10670
10671         /* unmap adapter SLIM and Control Registers */
10672         iounmap(phba->ctrl_regs_memmap_p);
10673         iounmap(phba->slim_memmap_p);
10674
10675         lpfc_hba_free(phba);
10676
10677         pci_release_mem_regions(pdev);
10678         pci_disable_device(pdev);
10679 }
10680
10681 /**
10682  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
10683  * @pdev: pointer to PCI device
10684  * @msg: power management message
10685  *
10686  * This routine is to be called from the kernel's PCI subsystem to support
10687  * system Power Management (PM) to device with SLI-3 interface spec. When
10688  * PM invokes this method, it quiesces the device by stopping the driver's
10689  * worker thread for the device, turning off device's interrupt and DMA,
10690  * and bring the device offline. Note that as the driver implements the
10691  * minimum PM requirements to a power-aware driver's PM support for the
10692  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10693  * to the suspend() method call will be treated as SUSPEND and the driver will
10694  * fully reinitialize its device during resume() method call, the driver will
10695  * set device to PCI_D3hot state in PCI config space instead of setting it
10696  * according to the @msg provided by the PM.
10697  *
10698  * Return code
10699  *      0 - driver suspended the device
10700  *      Error otherwise
10701  **/
10702 static int
10703 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
10704 {
10705         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10706         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10707
10708         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10709                         "0473 PCI device Power Management suspend.\n");
10710
10711         /* Bring down the device */
10712         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10713         lpfc_offline(phba);
10714         kthread_stop(phba->worker_thread);
10715
10716         /* Disable interrupt from device */
10717         lpfc_sli_disable_intr(phba);
10718
10719         /* Save device state to PCI config space */
10720         pci_save_state(pdev);
10721         pci_set_power_state(pdev, PCI_D3hot);
10722
10723         return 0;
10724 }
10725
10726 /**
10727  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
10728  * @pdev: pointer to PCI device
10729  *
10730  * This routine is to be called from the kernel's PCI subsystem to support
10731  * system Power Management (PM) to device with SLI-3 interface spec. When PM
10732  * invokes this method, it restores the device's PCI config space state and
10733  * fully reinitializes the device and brings it online. Note that as the
10734  * driver implements the minimum PM requirements to a power-aware driver's
10735  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
10736  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
10737  * driver will fully reinitialize its device during resume() method call,
10738  * the device will be set to PCI_D0 directly in PCI config space before
10739  * restoring the state.
10740  *
10741  * Return code
10742  *      0 - driver suspended the device
10743  *      Error otherwise
10744  **/
10745 static int
10746 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
10747 {
10748         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10749         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10750         uint32_t intr_mode;
10751         int error;
10752
10753         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10754                         "0452 PCI device Power Management resume.\n");
10755
10756         /* Restore device state from PCI config space */
10757         pci_set_power_state(pdev, PCI_D0);
10758         pci_restore_state(pdev);
10759
10760         /*
10761          * As the new kernel behavior of pci_restore_state() API call clears
10762          * device saved_state flag, need to save the restored state again.
10763          */
10764         pci_save_state(pdev);
10765
10766         if (pdev->is_busmaster)
10767                 pci_set_master(pdev);
10768
10769         /* Startup the kernel thread for this host adapter. */
10770         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10771                                         "lpfc_worker_%d", phba->brd_no);
10772         if (IS_ERR(phba->worker_thread)) {
10773                 error = PTR_ERR(phba->worker_thread);
10774                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10775                                 "0434 PM resume failed to start worker "
10776                                 "thread: error=x%x.\n", error);
10777                 return error;
10778         }
10779
10780         /* Configure and enable interrupt */
10781         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10782         if (intr_mode == LPFC_INTR_ERROR) {
10783                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10784                                 "0430 PM resume Failed to enable interrupt\n");
10785                 return -EIO;
10786         } else
10787                 phba->intr_mode = intr_mode;
10788
10789         /* Restart HBA and bring it online */
10790         lpfc_sli_brdrestart(phba);
10791         lpfc_online(phba);
10792
10793         /* Log the current active interrupt mode */
10794         lpfc_log_intr_mode(phba, phba->intr_mode);
10795
10796         return 0;
10797 }
10798
10799 /**
10800  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
10801  * @phba: pointer to lpfc hba data structure.
10802  *
10803  * This routine is called to prepare the SLI3 device for PCI slot recover. It
10804  * aborts all the outstanding SCSI I/Os to the pci device.
10805  **/
10806 static void
10807 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
10808 {
10809         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10810                         "2723 PCI channel I/O abort preparing for recovery\n");
10811
10812         /*
10813          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10814          * and let the SCSI mid-layer to retry them to recover.
10815          */
10816         lpfc_sli_abort_fcp_rings(phba);
10817 }
10818
10819 /**
10820  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
10821  * @phba: pointer to lpfc hba data structure.
10822  *
10823  * This routine is called to prepare the SLI3 device for PCI slot reset. It
10824  * disables the device interrupt and pci device, and aborts the internal FCP
10825  * pending I/Os.
10826  **/
10827 static void
10828 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
10829 {
10830         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10831                         "2710 PCI channel disable preparing for reset\n");
10832
10833         /* Block any management I/Os to the device */
10834         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
10835
10836         /* Block all SCSI devices' I/Os on the host */
10837         lpfc_scsi_dev_block(phba);
10838
10839         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10840         lpfc_sli_flush_fcp_rings(phba);
10841
10842         /* stop all timers */
10843         lpfc_stop_hba_timers(phba);
10844
10845         /* Disable interrupt and pci device */
10846         lpfc_sli_disable_intr(phba);
10847         pci_disable_device(phba->pcidev);
10848 }
10849
10850 /**
10851  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
10852  * @phba: pointer to lpfc hba data structure.
10853  *
10854  * This routine is called to prepare the SLI3 device for PCI slot permanently
10855  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10856  * pending I/Os.
10857  **/
10858 static void
10859 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10860 {
10861         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10862                         "2711 PCI channel permanent disable for failure\n");
10863         /* Block all SCSI devices' I/Os on the host */
10864         lpfc_scsi_dev_block(phba);
10865
10866         /* stop all timers */
10867         lpfc_stop_hba_timers(phba);
10868
10869         /* Clean up all driver's outstanding SCSI I/Os */
10870         lpfc_sli_flush_fcp_rings(phba);
10871 }
10872
10873 /**
10874  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
10875  * @pdev: pointer to PCI device.
10876  * @state: the current PCI connection state.
10877  *
10878  * This routine is called from the PCI subsystem for I/O error handling to
10879  * device with SLI-3 interface spec. This function is called by the PCI
10880  * subsystem after a PCI bus error affecting this device has been detected.
10881  * When this function is invoked, it will need to stop all the I/Os and
10882  * interrupt(s) to the device. Once that is done, it will return
10883  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
10884  * as desired.
10885  *
10886  * Return codes
10887  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
10888  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10889  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10890  **/
10891 static pci_ers_result_t
10892 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
10893 {
10894         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10895         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10896
10897         switch (state) {
10898         case pci_channel_io_normal:
10899                 /* Non-fatal error, prepare for recovery */
10900                 lpfc_sli_prep_dev_for_recover(phba);
10901                 return PCI_ERS_RESULT_CAN_RECOVER;
10902         case pci_channel_io_frozen:
10903                 /* Fatal error, prepare for slot reset */
10904                 lpfc_sli_prep_dev_for_reset(phba);
10905                 return PCI_ERS_RESULT_NEED_RESET;
10906         case pci_channel_io_perm_failure:
10907                 /* Permanent failure, prepare for device down */
10908                 lpfc_sli_prep_dev_for_perm_failure(phba);
10909                 return PCI_ERS_RESULT_DISCONNECT;
10910         default:
10911                 /* Unknown state, prepare and request slot reset */
10912                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10913                                 "0472 Unknown PCI error state: x%x\n", state);
10914                 lpfc_sli_prep_dev_for_reset(phba);
10915                 return PCI_ERS_RESULT_NEED_RESET;
10916         }
10917 }
10918
10919 /**
10920  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10921  * @pdev: pointer to PCI device.
10922  *
10923  * This routine is called from the PCI subsystem for error handling to
10924  * device with SLI-3 interface spec. This is called after PCI bus has been
10925  * reset to restart the PCI card from scratch, as if from a cold-boot.
10926  * During the PCI subsystem error recovery, after driver returns
10927  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10928  * recovery and then call this routine before calling the .resume method
10929  * to recover the device. This function will initialize the HBA device,
10930  * enable the interrupt, but it will just put the HBA to offline state
10931  * without passing any I/O traffic.
10932  *
10933  * Return codes
10934  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10935  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10936  */
10937 static pci_ers_result_t
10938 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10939 {
10940         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10941         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10942         struct lpfc_sli *psli = &phba->sli;
10943         uint32_t intr_mode;
10944
10945         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10946         if (pci_enable_device_mem(pdev)) {
10947                 printk(KERN_ERR "lpfc: Cannot re-enable "
10948                         "PCI device after reset.\n");
10949                 return PCI_ERS_RESULT_DISCONNECT;
10950         }
10951
10952         pci_restore_state(pdev);
10953
10954         /*
10955          * As the new kernel behavior of pci_restore_state() API call clears
10956          * device saved_state flag, need to save the restored state again.
10957          */
10958         pci_save_state(pdev);
10959
10960         if (pdev->is_busmaster)
10961                 pci_set_master(pdev);
10962
10963         spin_lock_irq(&phba->hbalock);
10964         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10965         spin_unlock_irq(&phba->hbalock);
10966
10967         /* Configure and enable interrupt */
10968         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10969         if (intr_mode == LPFC_INTR_ERROR) {
10970                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10971                                 "0427 Cannot re-enable interrupt after "
10972                                 "slot reset.\n");
10973                 return PCI_ERS_RESULT_DISCONNECT;
10974         } else
10975                 phba->intr_mode = intr_mode;
10976
10977         /* Take device offline, it will perform cleanup */
10978         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10979         lpfc_offline(phba);
10980         lpfc_sli_brdrestart(phba);
10981
10982         /* Log the current active interrupt mode */
10983         lpfc_log_intr_mode(phba, phba->intr_mode);
10984
10985         return PCI_ERS_RESULT_RECOVERED;
10986 }
10987
10988 /**
10989  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10990  * @pdev: pointer to PCI device
10991  *
10992  * This routine is called from the PCI subsystem for error handling to device
10993  * with SLI-3 interface spec. It is called when kernel error recovery tells
10994  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10995  * error recovery. After this call, traffic can start to flow from this device
10996  * again.
10997  */
10998 static void
10999 lpfc_io_resume_s3(struct pci_dev *pdev)
11000 {
11001         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11002         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11003
11004         /* Bring device online, it will be no-op for non-fatal error resume */
11005         lpfc_online(phba);
11006
11007         /* Clean up Advanced Error Reporting (AER) if needed */
11008         if (phba->hba_flag & HBA_AER_ENABLED)
11009                 pci_cleanup_aer_uncorrect_error_status(pdev);
11010 }
11011
11012 /**
11013  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
11014  * @phba: pointer to lpfc hba data structure.
11015  *
11016  * returns the number of ELS/CT IOCBs to reserve
11017  **/
11018 int
11019 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
11020 {
11021         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
11022
11023         if (phba->sli_rev == LPFC_SLI_REV4) {
11024                 if (max_xri <= 100)
11025                         return 10;
11026                 else if (max_xri <= 256)
11027                         return 25;
11028                 else if (max_xri <= 512)
11029                         return 50;
11030                 else if (max_xri <= 1024)
11031                         return 100;
11032                 else if (max_xri <= 1536)
11033                         return 150;
11034                 else if (max_xri <= 2048)
11035                         return 200;
11036                 else
11037                         return 250;
11038         } else
11039                 return 0;
11040 }
11041
11042 /**
11043  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
11044  * @phba: pointer to lpfc hba data structure.
11045  *
11046  * returns the number of ELS/CT + NVMET IOCBs to reserve
11047  **/
11048 int
11049 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
11050 {
11051         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
11052
11053         if (phba->nvmet_support)
11054                 max_xri += LPFC_NVMET_BUF_POST;
11055         return max_xri;
11056 }
11057
11058
11059 /**
11060  * lpfc_write_firmware - attempt to write a firmware image to the port
11061  * @fw: pointer to firmware image returned from request_firmware.
11062  * @phba: pointer to lpfc hba data structure.
11063  *
11064  **/
11065 static void
11066 lpfc_write_firmware(const struct firmware *fw, void *context)
11067 {
11068         struct lpfc_hba *phba = (struct lpfc_hba *)context;
11069         char fwrev[FW_REV_STR_SIZE];
11070         struct lpfc_grp_hdr *image;
11071         struct list_head dma_buffer_list;
11072         int i, rc = 0;
11073         struct lpfc_dmabuf *dmabuf, *next;
11074         uint32_t offset = 0, temp_offset = 0;
11075         uint32_t magic_number, ftype, fid, fsize;
11076
11077         /* It can be null in no-wait mode, sanity check */
11078         if (!fw) {
11079                 rc = -ENXIO;
11080                 goto out;
11081         }
11082         image = (struct lpfc_grp_hdr *)fw->data;
11083
11084         magic_number = be32_to_cpu(image->magic_number);
11085         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
11086         fid = bf_get_be32(lpfc_grp_hdr_id, image),
11087         fsize = be32_to_cpu(image->size);
11088
11089         INIT_LIST_HEAD(&dma_buffer_list);
11090         if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 &&
11091              magic_number != LPFC_GROUP_OJECT_MAGIC_G6) ||
11092             ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) {
11093                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11094                                 "3022 Invalid FW image found. "
11095                                 "Magic:%x Type:%x ID:%x Size %d %zd\n",
11096                                 magic_number, ftype, fid, fsize, fw->size);
11097                 rc = -EINVAL;
11098                 goto release_out;
11099         }
11100         lpfc_decode_firmware_rev(phba, fwrev, 1);
11101         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
11102                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11103                                 "3023 Updating Firmware, Current Version:%s "
11104                                 "New Version:%s\n",
11105                                 fwrev, image->revision);
11106                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
11107                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
11108                                          GFP_KERNEL);
11109                         if (!dmabuf) {
11110                                 rc = -ENOMEM;
11111                                 goto release_out;
11112                         }
11113                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11114                                                           SLI4_PAGE_SIZE,
11115                                                           &dmabuf->phys,
11116                                                           GFP_KERNEL);
11117                         if (!dmabuf->virt) {
11118                                 kfree(dmabuf);
11119                                 rc = -ENOMEM;
11120                                 goto release_out;
11121                         }
11122                         list_add_tail(&dmabuf->list, &dma_buffer_list);
11123                 }
11124                 while (offset < fw->size) {
11125                         temp_offset = offset;
11126                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
11127                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
11128                                         memcpy(dmabuf->virt,
11129                                                fw->data + temp_offset,
11130                                                fw->size - temp_offset);
11131                                         temp_offset = fw->size;
11132                                         break;
11133                                 }
11134                                 memcpy(dmabuf->virt, fw->data + temp_offset,
11135                                        SLI4_PAGE_SIZE);
11136                                 temp_offset += SLI4_PAGE_SIZE;
11137                         }
11138                         rc = lpfc_wr_object(phba, &dma_buffer_list,
11139                                     (fw->size - offset), &offset);
11140                         if (rc)
11141                                 goto release_out;
11142                 }
11143                 rc = offset;
11144         }
11145
11146 release_out:
11147         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
11148                 list_del(&dmabuf->list);
11149                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
11150                                   dmabuf->virt, dmabuf->phys);
11151                 kfree(dmabuf);
11152         }
11153         release_firmware(fw);
11154 out:
11155         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11156                         "3024 Firmware update done: %d.\n", rc);
11157         return;
11158 }
11159
11160 /**
11161  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
11162  * @phba: pointer to lpfc hba data structure.
11163  *
11164  * This routine is called to perform Linux generic firmware upgrade on device
11165  * that supports such feature.
11166  **/
11167 int
11168 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
11169 {
11170         uint8_t file_name[ELX_MODEL_NAME_SIZE];
11171         int ret;
11172         const struct firmware *fw;
11173
11174         /* Only supported on SLI4 interface type 2 for now */
11175         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11176             LPFC_SLI_INTF_IF_TYPE_2)
11177                 return -EPERM;
11178
11179         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
11180
11181         if (fw_upgrade == INT_FW_UPGRADE) {
11182                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
11183                                         file_name, &phba->pcidev->dev,
11184                                         GFP_KERNEL, (void *)phba,
11185                                         lpfc_write_firmware);
11186         } else if (fw_upgrade == RUN_FW_UPGRADE) {
11187                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
11188                 if (!ret)
11189                         lpfc_write_firmware(fw, (void *)phba);
11190         } else {
11191                 ret = -EINVAL;
11192         }
11193
11194         return ret;
11195 }
11196
11197 /**
11198  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
11199  * @pdev: pointer to PCI device
11200  * @pid: pointer to PCI device identifier
11201  *
11202  * This routine is called from the kernel's PCI subsystem to device with
11203  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11204  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11205  * information of the device and driver to see if the driver state that it
11206  * can support this kind of device. If the match is successful, the driver
11207  * core invokes this routine. If this routine determines it can claim the HBA,
11208  * it does all the initialization that it needs to do to handle the HBA
11209  * properly.
11210  *
11211  * Return code
11212  *      0 - driver can claim the device
11213  *      negative value - driver can not claim the device
11214  **/
11215 static int
11216 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
11217 {
11218         struct lpfc_hba   *phba;
11219         struct lpfc_vport *vport = NULL;
11220         struct Scsi_Host  *shost = NULL;
11221         int error;
11222         uint32_t cfg_mode, intr_mode;
11223
11224         /* Allocate memory for HBA structure */
11225         phba = lpfc_hba_alloc(pdev);
11226         if (!phba)
11227                 return -ENOMEM;
11228
11229         /* Perform generic PCI device enabling operation */
11230         error = lpfc_enable_pci_dev(phba);
11231         if (error)
11232                 goto out_free_phba;
11233
11234         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
11235         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
11236         if (error)
11237                 goto out_disable_pci_dev;
11238
11239         /* Set up SLI-4 specific device PCI memory space */
11240         error = lpfc_sli4_pci_mem_setup(phba);
11241         if (error) {
11242                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11243                                 "1410 Failed to set up pci memory space.\n");
11244                 goto out_disable_pci_dev;
11245         }
11246
11247         /* Set up SLI-4 Specific device driver resources */
11248         error = lpfc_sli4_driver_resource_setup(phba);
11249         if (error) {
11250                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11251                                 "1412 Failed to set up driver resource.\n");
11252                 goto out_unset_pci_mem_s4;
11253         }
11254
11255         INIT_LIST_HEAD(&phba->active_rrq_list);
11256         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
11257
11258         /* Set up common device driver resources */
11259         error = lpfc_setup_driver_resource_phase2(phba);
11260         if (error) {
11261                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11262                                 "1414 Failed to set up driver resource.\n");
11263                 goto out_unset_driver_resource_s4;
11264         }
11265
11266         /* Get the default values for Model Name and Description */
11267         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11268
11269         /* Create SCSI host to the physical port */
11270         error = lpfc_create_shost(phba);
11271         if (error) {
11272                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11273                                 "1415 Failed to create scsi host.\n");
11274                 goto out_unset_driver_resource;
11275         }
11276
11277         /* Configure sysfs attributes */
11278         vport = phba->pport;
11279         error = lpfc_alloc_sysfs_attr(vport);
11280         if (error) {
11281                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11282                                 "1416 Failed to allocate sysfs attr\n");
11283                 goto out_destroy_shost;
11284         }
11285
11286         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11287         /* Now, trying to enable interrupt and bring up the device */
11288         cfg_mode = phba->cfg_use_msi;
11289
11290         /* Put device to a known state before enabling interrupt */
11291         lpfc_stop_port(phba);
11292
11293         /* Configure and enable interrupt */
11294         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
11295         if (intr_mode == LPFC_INTR_ERROR) {
11296                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11297                                 "0426 Failed to enable interrupt.\n");
11298                 error = -ENODEV;
11299                 goto out_free_sysfs_attr;
11300         }
11301         /* Default to single EQ for non-MSI-X */
11302         if (phba->intr_type != MSIX) {
11303                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)
11304                         phba->cfg_fcp_io_channel = 1;
11305                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11306                         phba->cfg_nvme_io_channel = 1;
11307                         if (phba->nvmet_support)
11308                                 phba->cfg_nvmet_mrq = 1;
11309                 }
11310                 phba->io_channel_irqs = 1;
11311         }
11312
11313         /* Set up SLI-4 HBA */
11314         if (lpfc_sli4_hba_setup(phba)) {
11315                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11316                                 "1421 Failed to set up hba\n");
11317                 error = -ENODEV;
11318                 goto out_disable_intr;
11319         }
11320
11321         /* Log the current active interrupt mode */
11322         phba->intr_mode = intr_mode;
11323         lpfc_log_intr_mode(phba, intr_mode);
11324
11325         /* Perform post initialization setup */
11326         lpfc_post_init_setup(phba);
11327
11328         /* NVME support in FW earlier in the driver load corrects the
11329          * FC4 type making a check for nvme_support unnecessary.
11330          */
11331         if ((phba->nvmet_support == 0) &&
11332             (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
11333                 /* Create NVME binding with nvme_fc_transport. This
11334                  * ensures the vport is initialized.  If the localport
11335                  * create fails, it should not unload the driver to
11336                  * support field issues.
11337                  */
11338                 error = lpfc_nvme_create_localport(vport);
11339                 if (error) {
11340                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11341                                         "6004 NVME registration failed, "
11342                                         "error x%x\n",
11343                                         error);
11344                 }
11345         }
11346
11347         /* check for firmware upgrade or downgrade */
11348         if (phba->cfg_request_firmware_upgrade)
11349                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
11350
11351         /* Check if there are static vports to be created. */
11352         lpfc_create_static_vport(phba);
11353         return 0;
11354
11355 out_disable_intr:
11356         lpfc_sli4_disable_intr(phba);
11357 out_free_sysfs_attr:
11358         lpfc_free_sysfs_attr(vport);
11359 out_destroy_shost:
11360         lpfc_destroy_shost(phba);
11361 out_unset_driver_resource:
11362         lpfc_unset_driver_resource_phase2(phba);
11363 out_unset_driver_resource_s4:
11364         lpfc_sli4_driver_resource_unset(phba);
11365 out_unset_pci_mem_s4:
11366         lpfc_sli4_pci_mem_unset(phba);
11367 out_disable_pci_dev:
11368         lpfc_disable_pci_dev(phba);
11369         if (shost)
11370                 scsi_host_put(shost);
11371 out_free_phba:
11372         lpfc_hba_free(phba);
11373         return error;
11374 }
11375
11376 /**
11377  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
11378  * @pdev: pointer to PCI device
11379  *
11380  * This routine is called from the kernel's PCI subsystem to device with
11381  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
11382  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11383  * device to be removed from the PCI subsystem properly.
11384  **/
11385 static void
11386 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
11387 {
11388         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11389         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11390         struct lpfc_vport **vports;
11391         struct lpfc_hba *phba = vport->phba;
11392         int i;
11393
11394         /* Mark the device unloading flag */
11395         spin_lock_irq(&phba->hbalock);
11396         vport->load_flag |= FC_UNLOADING;
11397         spin_unlock_irq(&phba->hbalock);
11398
11399         /* Free the HBA sysfs attributes */
11400         lpfc_free_sysfs_attr(vport);
11401
11402         /* Release all the vports against this physical port */
11403         vports = lpfc_create_vport_work_array(phba);
11404         if (vports != NULL)
11405                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11406                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11407                                 continue;
11408                         fc_vport_terminate(vports[i]->fc_vport);
11409                 }
11410         lpfc_destroy_vport_work_array(phba, vports);
11411
11412         /* Remove FC host and then SCSI host with the physical port */
11413         fc_remove_host(shost);
11414         scsi_remove_host(shost);
11415         /*
11416          * Bring down the SLI Layer. This step disables all interrupts,
11417          * clears the rings, discards all mailbox commands, and resets
11418          * the HBA FCoE function.
11419          */
11420         lpfc_debugfs_terminate(vport);
11421         lpfc_sli4_hba_unset(phba);
11422
11423         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
11424          * localports are destroyed after to cleanup all transport memory.
11425          */
11426         lpfc_cleanup(vport);
11427         lpfc_nvmet_destroy_targetport(phba);
11428         lpfc_nvme_destroy_localport(vport);
11429
11430
11431         lpfc_stop_hba_timers(phba);
11432         spin_lock_irq(&phba->hbalock);
11433         list_del_init(&vport->listentry);
11434         spin_unlock_irq(&phba->hbalock);
11435
11436         /* Perform scsi free before driver resource_unset since scsi
11437          * buffers are released to their corresponding pools here.
11438          */
11439         lpfc_scsi_free(phba);
11440         lpfc_nvme_free(phba);
11441         lpfc_free_iocb_list(phba);
11442
11443         lpfc_sli4_driver_resource_unset(phba);
11444
11445         /* Unmap adapter Control and Doorbell registers */
11446         lpfc_sli4_pci_mem_unset(phba);
11447
11448         /* Release PCI resources and disable device's PCI function */
11449         scsi_host_put(shost);
11450         lpfc_disable_pci_dev(phba);
11451
11452         /* Finally, free the driver's device data structure */
11453         lpfc_hba_free(phba);
11454
11455         return;
11456 }
11457
11458 /**
11459  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
11460  * @pdev: pointer to PCI device
11461  * @msg: power management message
11462  *
11463  * This routine is called from the kernel's PCI subsystem to support system
11464  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
11465  * this method, it quiesces the device by stopping the driver's worker
11466  * thread for the device, turning off device's interrupt and DMA, and bring
11467  * the device offline. Note that as the driver implements the minimum PM
11468  * requirements to a power-aware driver's PM support for suspend/resume -- all
11469  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
11470  * method call will be treated as SUSPEND and the driver will fully
11471  * reinitialize its device during resume() method call, the driver will set
11472  * device to PCI_D3hot state in PCI config space instead of setting it
11473  * according to the @msg provided by the PM.
11474  *
11475  * Return code
11476  *      0 - driver suspended the device
11477  *      Error otherwise
11478  **/
11479 static int
11480 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
11481 {
11482         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11483         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11484
11485         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11486                         "2843 PCI device Power Management suspend.\n");
11487
11488         /* Bring down the device */
11489         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11490         lpfc_offline(phba);
11491         kthread_stop(phba->worker_thread);
11492
11493         /* Disable interrupt from device */
11494         lpfc_sli4_disable_intr(phba);
11495         lpfc_sli4_queue_destroy(phba);
11496
11497         /* Save device state to PCI config space */
11498         pci_save_state(pdev);
11499         pci_set_power_state(pdev, PCI_D3hot);
11500
11501         return 0;
11502 }
11503
11504 /**
11505  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
11506  * @pdev: pointer to PCI device
11507  *
11508  * This routine is called from the kernel's PCI subsystem to support system
11509  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
11510  * this method, it restores the device's PCI config space state and fully
11511  * reinitializes the device and brings it online. Note that as the driver
11512  * implements the minimum PM requirements to a power-aware driver's PM for
11513  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11514  * to the suspend() method call will be treated as SUSPEND and the driver
11515  * will fully reinitialize its device during resume() method call, the device
11516  * will be set to PCI_D0 directly in PCI config space before restoring the
11517  * state.
11518  *
11519  * Return code
11520  *      0 - driver suspended the device
11521  *      Error otherwise
11522  **/
11523 static int
11524 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
11525 {
11526         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11527         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11528         uint32_t intr_mode;
11529         int error;
11530
11531         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11532                         "0292 PCI device Power Management resume.\n");
11533
11534         /* Restore device state from PCI config space */
11535         pci_set_power_state(pdev, PCI_D0);
11536         pci_restore_state(pdev);
11537
11538         /*
11539          * As the new kernel behavior of pci_restore_state() API call clears
11540          * device saved_state flag, need to save the restored state again.
11541          */
11542         pci_save_state(pdev);
11543
11544         if (pdev->is_busmaster)
11545                 pci_set_master(pdev);
11546
11547          /* Startup the kernel thread for this host adapter. */
11548         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11549                                         "lpfc_worker_%d", phba->brd_no);
11550         if (IS_ERR(phba->worker_thread)) {
11551                 error = PTR_ERR(phba->worker_thread);
11552                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11553                                 "0293 PM resume failed to start worker "
11554                                 "thread: error=x%x.\n", error);
11555                 return error;
11556         }
11557
11558         /* Configure and enable interrupt */
11559         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11560         if (intr_mode == LPFC_INTR_ERROR) {
11561                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11562                                 "0294 PM resume Failed to enable interrupt\n");
11563                 return -EIO;
11564         } else
11565                 phba->intr_mode = intr_mode;
11566
11567         /* Restart HBA and bring it online */
11568         lpfc_sli_brdrestart(phba);
11569         lpfc_online(phba);
11570
11571         /* Log the current active interrupt mode */
11572         lpfc_log_intr_mode(phba, phba->intr_mode);
11573
11574         return 0;
11575 }
11576
11577 /**
11578  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
11579  * @phba: pointer to lpfc hba data structure.
11580  *
11581  * This routine is called to prepare the SLI4 device for PCI slot recover. It
11582  * aborts all the outstanding SCSI I/Os to the pci device.
11583  **/
11584 static void
11585 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
11586 {
11587         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11588                         "2828 PCI channel I/O abort preparing for recovery\n");
11589         /*
11590          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11591          * and let the SCSI mid-layer to retry them to recover.
11592          */
11593         lpfc_sli_abort_fcp_rings(phba);
11594 }
11595
11596 /**
11597  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
11598  * @phba: pointer to lpfc hba data structure.
11599  *
11600  * This routine is called to prepare the SLI4 device for PCI slot reset. It
11601  * disables the device interrupt and pci device, and aborts the internal FCP
11602  * pending I/Os.
11603  **/
11604 static void
11605 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
11606 {
11607         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11608                         "2826 PCI channel disable preparing for reset\n");
11609
11610         /* Block any management I/Os to the device */
11611         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
11612
11613         /* Block all SCSI devices' I/Os on the host */
11614         lpfc_scsi_dev_block(phba);
11615
11616         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11617         lpfc_sli_flush_fcp_rings(phba);
11618
11619         /* stop all timers */
11620         lpfc_stop_hba_timers(phba);
11621
11622         /* Disable interrupt and pci device */
11623         lpfc_sli4_disable_intr(phba);
11624         lpfc_sli4_queue_destroy(phba);
11625         pci_disable_device(phba->pcidev);
11626 }
11627
11628 /**
11629  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
11630  * @phba: pointer to lpfc hba data structure.
11631  *
11632  * This routine is called to prepare the SLI4 device for PCI slot permanently
11633  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11634  * pending I/Os.
11635  **/
11636 static void
11637 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11638 {
11639         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11640                         "2827 PCI channel permanent disable for failure\n");
11641
11642         /* Block all SCSI devices' I/Os on the host */
11643         lpfc_scsi_dev_block(phba);
11644
11645         /* stop all timers */
11646         lpfc_stop_hba_timers(phba);
11647
11648         /* Clean up all driver's outstanding SCSI I/Os */
11649         lpfc_sli_flush_fcp_rings(phba);
11650 }
11651
11652 /**
11653  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
11654  * @pdev: pointer to PCI device.
11655  * @state: the current PCI connection state.
11656  *
11657  * This routine is called from the PCI subsystem for error handling to device
11658  * with SLI-4 interface spec. This function is called by the PCI subsystem
11659  * after a PCI bus error affecting this device has been detected. When this
11660  * function is invoked, it will need to stop all the I/Os and interrupt(s)
11661  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
11662  * for the PCI subsystem to perform proper recovery as desired.
11663  *
11664  * Return codes
11665  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11666  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11667  **/
11668 static pci_ers_result_t
11669 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
11670 {
11671         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11672         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11673
11674         switch (state) {
11675         case pci_channel_io_normal:
11676                 /* Non-fatal error, prepare for recovery */
11677                 lpfc_sli4_prep_dev_for_recover(phba);
11678                 return PCI_ERS_RESULT_CAN_RECOVER;
11679         case pci_channel_io_frozen:
11680                 /* Fatal error, prepare for slot reset */
11681                 lpfc_sli4_prep_dev_for_reset(phba);
11682                 return PCI_ERS_RESULT_NEED_RESET;
11683         case pci_channel_io_perm_failure:
11684                 /* Permanent failure, prepare for device down */
11685                 lpfc_sli4_prep_dev_for_perm_failure(phba);
11686                 return PCI_ERS_RESULT_DISCONNECT;
11687         default:
11688                 /* Unknown state, prepare and request slot reset */
11689                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11690                                 "2825 Unknown PCI error state: x%x\n", state);
11691                 lpfc_sli4_prep_dev_for_reset(phba);
11692                 return PCI_ERS_RESULT_NEED_RESET;
11693         }
11694 }
11695
11696 /**
11697  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
11698  * @pdev: pointer to PCI device.
11699  *
11700  * This routine is called from the PCI subsystem for error handling to device
11701  * with SLI-4 interface spec. It is called after PCI bus has been reset to
11702  * restart the PCI card from scratch, as if from a cold-boot. During the
11703  * PCI subsystem error recovery, after the driver returns
11704  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11705  * recovery and then call this routine before calling the .resume method to
11706  * recover the device. This function will initialize the HBA device, enable
11707  * the interrupt, but it will just put the HBA to offline state without
11708  * passing any I/O traffic.
11709  *
11710  * Return codes
11711  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11712  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11713  */
11714 static pci_ers_result_t
11715 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
11716 {
11717         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11718         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11719         struct lpfc_sli *psli = &phba->sli;
11720         uint32_t intr_mode;
11721
11722         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11723         if (pci_enable_device_mem(pdev)) {
11724                 printk(KERN_ERR "lpfc: Cannot re-enable "
11725                         "PCI device after reset.\n");
11726                 return PCI_ERS_RESULT_DISCONNECT;
11727         }
11728
11729         pci_restore_state(pdev);
11730
11731         /*
11732          * As the new kernel behavior of pci_restore_state() API call clears
11733          * device saved_state flag, need to save the restored state again.
11734          */
11735         pci_save_state(pdev);
11736
11737         if (pdev->is_busmaster)
11738                 pci_set_master(pdev);
11739
11740         spin_lock_irq(&phba->hbalock);
11741         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11742         spin_unlock_irq(&phba->hbalock);
11743
11744         /* Configure and enable interrupt */
11745         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
11746         if (intr_mode == LPFC_INTR_ERROR) {
11747                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11748                                 "2824 Cannot re-enable interrupt after "
11749                                 "slot reset.\n");
11750                 return PCI_ERS_RESULT_DISCONNECT;
11751         } else
11752                 phba->intr_mode = intr_mode;
11753
11754         /* Log the current active interrupt mode */
11755         lpfc_log_intr_mode(phba, phba->intr_mode);
11756
11757         return PCI_ERS_RESULT_RECOVERED;
11758 }
11759
11760 /**
11761  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
11762  * @pdev: pointer to PCI device
11763  *
11764  * This routine is called from the PCI subsystem for error handling to device
11765  * with SLI-4 interface spec. It is called when kernel error recovery tells
11766  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11767  * error recovery. After this call, traffic can start to flow from this device
11768  * again.
11769  **/
11770 static void
11771 lpfc_io_resume_s4(struct pci_dev *pdev)
11772 {
11773         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11774         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11775
11776         /*
11777          * In case of slot reset, as function reset is performed through
11778          * mailbox command which needs DMA to be enabled, this operation
11779          * has to be moved to the io resume phase. Taking device offline
11780          * will perform the necessary cleanup.
11781          */
11782         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
11783                 /* Perform device reset */
11784                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11785                 lpfc_offline(phba);
11786                 lpfc_sli_brdrestart(phba);
11787                 /* Bring the device back online */
11788                 lpfc_online(phba);
11789         }
11790
11791         /* Clean up Advanced Error Reporting (AER) if needed */
11792         if (phba->hba_flag & HBA_AER_ENABLED)
11793                 pci_cleanup_aer_uncorrect_error_status(pdev);
11794 }
11795
11796 /**
11797  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
11798  * @pdev: pointer to PCI device
11799  * @pid: pointer to PCI device identifier
11800  *
11801  * This routine is to be registered to the kernel's PCI subsystem. When an
11802  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
11803  * at PCI device-specific information of the device and driver to see if the
11804  * driver state that it can support this kind of device. If the match is
11805  * successful, the driver core invokes this routine. This routine dispatches
11806  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
11807  * do all the initialization that it needs to do to handle the HBA device
11808  * properly.
11809  *
11810  * Return code
11811  *      0 - driver can claim the device
11812  *      negative value - driver can not claim the device
11813  **/
11814 static int
11815 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
11816 {
11817         int rc;
11818         struct lpfc_sli_intf intf;
11819
11820         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
11821                 return -ENODEV;
11822
11823         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
11824             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
11825                 rc = lpfc_pci_probe_one_s4(pdev, pid);
11826         else
11827                 rc = lpfc_pci_probe_one_s3(pdev, pid);
11828
11829         return rc;
11830 }
11831
11832 /**
11833  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
11834  * @pdev: pointer to PCI device
11835  *
11836  * This routine is to be registered to the kernel's PCI subsystem. When an
11837  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
11838  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
11839  * remove routine, which will perform all the necessary cleanup for the
11840  * device to be removed from the PCI subsystem properly.
11841  **/
11842 static void
11843 lpfc_pci_remove_one(struct pci_dev *pdev)
11844 {
11845         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11846         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11847
11848         switch (phba->pci_dev_grp) {
11849         case LPFC_PCI_DEV_LP:
11850                 lpfc_pci_remove_one_s3(pdev);
11851                 break;
11852         case LPFC_PCI_DEV_OC:
11853                 lpfc_pci_remove_one_s4(pdev);
11854                 break;
11855         default:
11856                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11857                                 "1424 Invalid PCI device group: 0x%x\n",
11858                                 phba->pci_dev_grp);
11859                 break;
11860         }
11861         return;
11862 }
11863
11864 /**
11865  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
11866  * @pdev: pointer to PCI device
11867  * @msg: power management message
11868  *
11869  * This routine is to be registered to the kernel's PCI subsystem to support
11870  * system Power Management (PM). When PM invokes this method, it dispatches
11871  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
11872  * suspend the device.
11873  *
11874  * Return code
11875  *      0 - driver suspended the device
11876  *      Error otherwise
11877  **/
11878 static int
11879 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
11880 {
11881         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11882         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11883         int rc = -ENODEV;
11884
11885         switch (phba->pci_dev_grp) {
11886         case LPFC_PCI_DEV_LP:
11887                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
11888                 break;
11889         case LPFC_PCI_DEV_OC:
11890                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
11891                 break;
11892         default:
11893                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11894                                 "1425 Invalid PCI device group: 0x%x\n",
11895                                 phba->pci_dev_grp);
11896                 break;
11897         }
11898         return rc;
11899 }
11900
11901 /**
11902  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
11903  * @pdev: pointer to PCI device
11904  *
11905  * This routine is to be registered to the kernel's PCI subsystem to support
11906  * system Power Management (PM). When PM invokes this method, it dispatches
11907  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
11908  * resume the device.
11909  *
11910  * Return code
11911  *      0 - driver suspended the device
11912  *      Error otherwise
11913  **/
11914 static int
11915 lpfc_pci_resume_one(struct pci_dev *pdev)
11916 {
11917         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11918         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11919         int rc = -ENODEV;
11920
11921         switch (phba->pci_dev_grp) {
11922         case LPFC_PCI_DEV_LP:
11923                 rc = lpfc_pci_resume_one_s3(pdev);
11924                 break;
11925         case LPFC_PCI_DEV_OC:
11926                 rc = lpfc_pci_resume_one_s4(pdev);
11927                 break;
11928         default:
11929                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11930                                 "1426 Invalid PCI device group: 0x%x\n",
11931                                 phba->pci_dev_grp);
11932                 break;
11933         }
11934         return rc;
11935 }
11936
11937 /**
11938  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11939  * @pdev: pointer to PCI device.
11940  * @state: the current PCI connection state.
11941  *
11942  * This routine is registered to the PCI subsystem for error handling. This
11943  * function is called by the PCI subsystem after a PCI bus error affecting
11944  * this device has been detected. When this routine is invoked, it dispatches
11945  * the action to the proper SLI-3 or SLI-4 device error detected handling
11946  * routine, which will perform the proper error detected operation.
11947  *
11948  * Return codes
11949  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11950  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11951  **/
11952 static pci_ers_result_t
11953 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11954 {
11955         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11956         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11957         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11958
11959         switch (phba->pci_dev_grp) {
11960         case LPFC_PCI_DEV_LP:
11961                 rc = lpfc_io_error_detected_s3(pdev, state);
11962                 break;
11963         case LPFC_PCI_DEV_OC:
11964                 rc = lpfc_io_error_detected_s4(pdev, state);
11965                 break;
11966         default:
11967                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11968                                 "1427 Invalid PCI device group: 0x%x\n",
11969                                 phba->pci_dev_grp);
11970                 break;
11971         }
11972         return rc;
11973 }
11974
11975 /**
11976  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11977  * @pdev: pointer to PCI device.
11978  *
11979  * This routine is registered to the PCI subsystem for error handling. This
11980  * function is called after PCI bus has been reset to restart the PCI card
11981  * from scratch, as if from a cold-boot. When this routine is invoked, it
11982  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11983  * routine, which will perform the proper device reset.
11984  *
11985  * Return codes
11986  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11987  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11988  **/
11989 static pci_ers_result_t
11990 lpfc_io_slot_reset(struct pci_dev *pdev)
11991 {
11992         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11993         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11994         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11995
11996         switch (phba->pci_dev_grp) {
11997         case LPFC_PCI_DEV_LP:
11998                 rc = lpfc_io_slot_reset_s3(pdev);
11999                 break;
12000         case LPFC_PCI_DEV_OC:
12001                 rc = lpfc_io_slot_reset_s4(pdev);
12002                 break;
12003         default:
12004                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12005                                 "1428 Invalid PCI device group: 0x%x\n",
12006                                 phba->pci_dev_grp);
12007                 break;
12008         }
12009         return rc;
12010 }
12011
12012 /**
12013  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
12014  * @pdev: pointer to PCI device
12015  *
12016  * This routine is registered to the PCI subsystem for error handling. It
12017  * is called when kernel error recovery tells the lpfc driver that it is
12018  * OK to resume normal PCI operation after PCI bus error recovery. When
12019  * this routine is invoked, it dispatches the action to the proper SLI-3
12020  * or SLI-4 device io_resume routine, which will resume the device operation.
12021  **/
12022 static void
12023 lpfc_io_resume(struct pci_dev *pdev)
12024 {
12025         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12026         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12027
12028         switch (phba->pci_dev_grp) {
12029         case LPFC_PCI_DEV_LP:
12030                 lpfc_io_resume_s3(pdev);
12031                 break;
12032         case LPFC_PCI_DEV_OC:
12033                 lpfc_io_resume_s4(pdev);
12034                 break;
12035         default:
12036                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12037                                 "1429 Invalid PCI device group: 0x%x\n",
12038                                 phba->pci_dev_grp);
12039                 break;
12040         }
12041         return;
12042 }
12043
12044 /**
12045  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
12046  * @phba: pointer to lpfc hba data structure.
12047  *
12048  * This routine checks to see if OAS is supported for this adapter. If
12049  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
12050  * the enable oas flag is cleared and the pool created for OAS device data
12051  * is destroyed.
12052  *
12053  **/
12054 void
12055 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
12056 {
12057
12058         if (!phba->cfg_EnableXLane)
12059                 return;
12060
12061         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
12062                 phba->cfg_fof = 1;
12063         } else {
12064                 phba->cfg_fof = 0;
12065                 if (phba->device_data_mem_pool)
12066                         mempool_destroy(phba->device_data_mem_pool);
12067                 phba->device_data_mem_pool = NULL;
12068         }
12069
12070         return;
12071 }
12072
12073 /**
12074  * lpfc_fof_queue_setup - Set up all the fof queues
12075  * @phba: pointer to lpfc hba data structure.
12076  *
12077  * This routine is invoked to set up all the fof queues for the FC HBA
12078  * operation.
12079  *
12080  * Return codes
12081  *      0 - successful
12082  *      -ENOMEM - No available memory
12083  **/
12084 int
12085 lpfc_fof_queue_setup(struct lpfc_hba *phba)
12086 {
12087         struct lpfc_sli_ring *pring;
12088         int rc;
12089
12090         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
12091         if (rc)
12092                 return -ENOMEM;
12093
12094         if (phba->cfg_fof) {
12095
12096                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
12097                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
12098                 if (rc)
12099                         goto out_oas_cq;
12100
12101                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
12102                                     phba->sli4_hba.oas_cq, LPFC_FCP);
12103                 if (rc)
12104                         goto out_oas_wq;
12105
12106                 /* Bind this CQ/WQ to the NVME ring */
12107                 pring = phba->sli4_hba.oas_wq->pring;
12108                 pring->sli.sli4.wqp =
12109                         (void *)phba->sli4_hba.oas_wq;
12110                 phba->sli4_hba.oas_cq->pring = pring;
12111         }
12112
12113         return 0;
12114
12115 out_oas_wq:
12116         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
12117 out_oas_cq:
12118         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
12119         return rc;
12120
12121 }
12122
12123 /**
12124  * lpfc_fof_queue_create - Create all the fof queues
12125  * @phba: pointer to lpfc hba data structure.
12126  *
12127  * This routine is invoked to allocate all the fof queues for the FC HBA
12128  * operation. For each SLI4 queue type, the parameters such as queue entry
12129  * count (queue depth) shall be taken from the module parameter. For now,
12130  * we just use some constant number as place holder.
12131  *
12132  * Return codes
12133  *      0 - successful
12134  *      -ENOMEM - No availble memory
12135  *      -EIO - The mailbox failed to complete successfully.
12136  **/
12137 int
12138 lpfc_fof_queue_create(struct lpfc_hba *phba)
12139 {
12140         struct lpfc_queue *qdesc;
12141         uint32_t wqesize;
12142
12143         /* Create FOF EQ */
12144         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
12145                                       phba->sli4_hba.eq_ecount);
12146         if (!qdesc)
12147                 goto out_error;
12148
12149         phba->sli4_hba.fof_eq = qdesc;
12150
12151         if (phba->cfg_fof) {
12152
12153                 /* Create OAS CQ */
12154                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
12155                                                       phba->sli4_hba.cq_ecount);
12156                 if (!qdesc)
12157                         goto out_error;
12158
12159                 phba->sli4_hba.oas_cq = qdesc;
12160
12161                 /* Create OAS WQ */
12162                 wqesize = (phba->fcp_embed_io) ?
12163                                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
12164                 qdesc = lpfc_sli4_queue_alloc(phba, wqesize,
12165                                               phba->sli4_hba.wq_ecount);
12166
12167                 if (!qdesc)
12168                         goto out_error;
12169
12170                 phba->sli4_hba.oas_wq = qdesc;
12171                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
12172
12173         }
12174         return 0;
12175
12176 out_error:
12177         lpfc_fof_queue_destroy(phba);
12178         return -ENOMEM;
12179 }
12180
12181 /**
12182  * lpfc_fof_queue_destroy - Destroy all the fof queues
12183  * @phba: pointer to lpfc hba data structure.
12184  *
12185  * This routine is invoked to release all the SLI4 queues with the FC HBA
12186  * operation.
12187  *
12188  * Return codes
12189  *      0 - successful
12190  **/
12191 int
12192 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
12193 {
12194         /* Release FOF Event queue */
12195         if (phba->sli4_hba.fof_eq != NULL) {
12196                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
12197                 phba->sli4_hba.fof_eq = NULL;
12198         }
12199
12200         /* Release OAS Completion queue */
12201         if (phba->sli4_hba.oas_cq != NULL) {
12202                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
12203                 phba->sli4_hba.oas_cq = NULL;
12204         }
12205
12206         /* Release OAS Work queue */
12207         if (phba->sli4_hba.oas_wq != NULL) {
12208                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
12209                 phba->sli4_hba.oas_wq = NULL;
12210         }
12211         return 0;
12212 }
12213
12214 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
12215
12216 static const struct pci_error_handlers lpfc_err_handler = {
12217         .error_detected = lpfc_io_error_detected,
12218         .slot_reset = lpfc_io_slot_reset,
12219         .resume = lpfc_io_resume,
12220 };
12221
12222 static struct pci_driver lpfc_driver = {
12223         .name           = LPFC_DRIVER_NAME,
12224         .id_table       = lpfc_id_table,
12225         .probe          = lpfc_pci_probe_one,
12226         .remove         = lpfc_pci_remove_one,
12227         .shutdown       = lpfc_pci_remove_one,
12228         .suspend        = lpfc_pci_suspend_one,
12229         .resume         = lpfc_pci_resume_one,
12230         .err_handler    = &lpfc_err_handler,
12231 };
12232
12233 static const struct file_operations lpfc_mgmt_fop = {
12234         .owner = THIS_MODULE,
12235 };
12236
12237 static struct miscdevice lpfc_mgmt_dev = {
12238         .minor = MISC_DYNAMIC_MINOR,
12239         .name = "lpfcmgmt",
12240         .fops = &lpfc_mgmt_fop,
12241 };
12242
12243 /**
12244  * lpfc_init - lpfc module initialization routine
12245  *
12246  * This routine is to be invoked when the lpfc module is loaded into the
12247  * kernel. The special kernel macro module_init() is used to indicate the
12248  * role of this routine to the kernel as lpfc module entry point.
12249  *
12250  * Return codes
12251  *   0 - successful
12252  *   -ENOMEM - FC attach transport failed
12253  *   all others - failed
12254  */
12255 static int __init
12256 lpfc_init(void)
12257 {
12258         int error = 0;
12259
12260         printk(LPFC_MODULE_DESC "\n");
12261         printk(LPFC_COPYRIGHT "\n");
12262
12263         error = misc_register(&lpfc_mgmt_dev);
12264         if (error)
12265                 printk(KERN_ERR "Could not register lpfcmgmt device, "
12266                         "misc_register returned with status %d", error);
12267
12268         lpfc_transport_functions.vport_create = lpfc_vport_create;
12269         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
12270         lpfc_transport_template =
12271                                 fc_attach_transport(&lpfc_transport_functions);
12272         if (lpfc_transport_template == NULL)
12273                 return -ENOMEM;
12274         lpfc_vport_transport_template =
12275                 fc_attach_transport(&lpfc_vport_transport_functions);
12276         if (lpfc_vport_transport_template == NULL) {
12277                 fc_release_transport(lpfc_transport_template);
12278                 return -ENOMEM;
12279         }
12280
12281         /* Initialize in case vector mapping is needed */
12282         lpfc_used_cpu = NULL;
12283         lpfc_present_cpu = num_present_cpus();
12284
12285         error = pci_register_driver(&lpfc_driver);
12286         if (error) {
12287                 fc_release_transport(lpfc_transport_template);
12288                 fc_release_transport(lpfc_vport_transport_template);
12289         }
12290
12291         return error;
12292 }
12293
12294 /**
12295  * lpfc_exit - lpfc module removal routine
12296  *
12297  * This routine is invoked when the lpfc module is removed from the kernel.
12298  * The special kernel macro module_exit() is used to indicate the role of
12299  * this routine to the kernel as lpfc module exit point.
12300  */
12301 static void __exit
12302 lpfc_exit(void)
12303 {
12304         misc_deregister(&lpfc_mgmt_dev);
12305         pci_unregister_driver(&lpfc_driver);
12306         fc_release_transport(lpfc_transport_template);
12307         fc_release_transport(lpfc_vport_transport_template);
12308         if (_dump_buf_data) {
12309                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
12310                                 "_dump_buf_data at 0x%p\n",
12311                                 (1L << _dump_buf_data_order), _dump_buf_data);
12312                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
12313         }
12314
12315         if (_dump_buf_dif) {
12316                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
12317                                 "_dump_buf_dif at 0x%p\n",
12318                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
12319                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
12320         }
12321         kfree(lpfc_used_cpu);
12322         idr_destroy(&lpfc_hba_index);
12323 }
12324
12325 module_init(lpfc_init);
12326 module_exit(lpfc_exit);
12327 MODULE_LICENSE("GPL");
12328 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
12329 MODULE_AUTHOR("Broadcom");
12330 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);