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) 2004-2010 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/blkdev.h>
  23 #include <linux/delay.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/idr.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/kthread.h>
  28 #include <linux/pci.h>
  29 #include <linux/spinlock.h>
  30 #include <linux/ctype.h>
  31 #include <linux/aer.h>
  32 #include <linux/slab.h>
  33
  34 #include <scsi/scsi.h>
  35 #include <scsi/scsi_device.h>
  36 #include <scsi/scsi_host.h>
  37 #include <scsi/scsi_transport_fc.h>
  38
  39 #include "lpfc_hw4.h"
  40 #include "lpfc_hw.h"
  41 #include "lpfc_sli.h"
  42 #include "lpfc_sli4.h"
  43 #include "lpfc_nl.h"
  44 #include "lpfc_disc.h"
  45 #include "lpfc_scsi.h"
  46 #include "lpfc.h"
  47 #include "lpfc_logmsg.h"
  48 #include "lpfc_crtn.h"
  49 #include "lpfc_vport.h"
  50 #include "lpfc_version.h"
  51
  52 char *_dump_buf_data;
  53 unsigned long _dump_buf_data_order;
  54 char *_dump_buf_dif;
  55 unsigned long _dump_buf_dif_order;
  56 spinlock_t _dump_buf_lock;
  57
  58 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  59 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  60 static int lpfc_sli4_queue_create(struct lpfc_hba *);
  61 static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
  62 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  63 static int lpfc_setup_endian_order(struct lpfc_hba *);
  64 static int lpfc_sli4_read_config(struct lpfc_hba *);
  65 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  66 static void lpfc_free_sgl_list(struct lpfc_hba *);
  67 static int lpfc_init_sgl_list(struct lpfc_hba *);
  68 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  69 static void lpfc_free_active_sgl(struct lpfc_hba *);
  70 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  71 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  72 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  73 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  74 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  75
  76 static struct scsi_transport_template *lpfc_transport_template = NULL;
  77 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  78 static DEFINE_IDR(lpfc_hba_index);
  79
  80 /**
  81  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  82  * @phba: pointer to lpfc hba data structure.
  83  *
  84  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  85  * mailbox command. It retrieves the revision information from the HBA and
  86  * collects the Vital Product Data (VPD) about the HBA for preparing the
  87  * configuration of the HBA.
  88  *
  89  * Return codes:
  90  *   0 - success.
  91  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
  92  *   Any other value - indicates an error.
  93  **/
  94 int
  95 lpfc_config_port_prep(struct lpfc_hba *phba)
  96 {
  97         lpfc_vpd_t *vp = &phba->vpd;
  98         int i = 0, rc;
  99         LPFC_MBOXQ_t *pmb;
 100         MAILBOX_t *mb;
 101         char *lpfc_vpd_data = NULL;
 102         uint16_t offset = 0;
 103         static char licensed[56] =
 104                     "key unlock for use with gnu public licensed code only\0";
 105         static int init_key = 1;
 106
 107         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 108         if (!pmb) {
 109                 phba->link_state = LPFC_HBA_ERROR;
 110                 return -ENOMEM;
 111         }
 112
 113         mb = &pmb->u.mb;
 114         phba->link_state = LPFC_INIT_MBX_CMDS;
 115
 116         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 117                 if (init_key) {
 118                         uint32_t *ptext = (uint32_t *) licensed;
 119
 120                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 121                                 *ptext = cpu_to_be32(*ptext);
 122                         init_key = 0;
 123                 }
 124
 125                 lpfc_read_nv(phba, pmb);
 126                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 127                         sizeof (mb->un.varRDnvp.rsvd3));
 128                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 129                          sizeof (licensed));
 130
 131                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 132
 133                 if (rc != MBX_SUCCESS) {
 134                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 135                                         "0324 Config Port initialization "
 136                                         "error, mbxCmd x%x READ_NVPARM, "
 137                                         "mbxStatus x%x\n",
 138                                         mb->mbxCommand, mb->mbxStatus);
 139                         mempool_free(pmb, phba->mbox_mem_pool);
 140                         return -ERESTART;
 141                 }
 142                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 143                        sizeof(phba->wwnn));
 144                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 145                        sizeof(phba->wwpn));
 146         }
 147
 148         phba->sli3_options = 0x0;
 149
 150         /* Setup and issue mailbox READ REV command */
 151         lpfc_read_rev(phba, pmb);
 152         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 153         if (rc != MBX_SUCCESS) {
 154                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 155                                 "0439 Adapter failed to init, mbxCmd x%x "
 156                                 "READ_REV, mbxStatus x%x\n",
 157                                 mb->mbxCommand, mb->mbxStatus);
 158                 mempool_free( pmb, phba->mbox_mem_pool);
 159                 return -ERESTART;
 160         }
 161
 162
 163         /*
 164          * The value of rr must be 1 since the driver set the cv field to 1.
 165          * This setting requires the FW to set all revision fields.
 166          */
 167         if (mb->un.varRdRev.rr == 0) {
 168                 vp->rev.rBit = 0;
 169                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 170                                 "0440 Adapter failed to init, READ_REV has "
 171                                 "missing revision information.\n");
 172                 mempool_free(pmb, phba->mbox_mem_pool);
 173                 return -ERESTART;
 174         }
 175
 176         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 177                 mempool_free(pmb, phba->mbox_mem_pool);
 178                 return -EINVAL;
 179         }
 180
 181         /* Save information as VPD data */
 182         vp->rev.rBit = 1;
 183         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 184         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 185         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 186         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 187         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 188         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 189         vp->rev.smRev = mb->un.varRdRev.smRev;
 190         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 191         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 192         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 193         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 194         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 195         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 196         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 197         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 198
 199         /* If the sli feature level is less then 9, we must
 200          * tear down all RPIs and VPIs on link down if NPIV
 201          * is enabled.
 202          */
 203         if (vp->rev.feaLevelHigh < 9)
 204                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 205
 206         if (lpfc_is_LC_HBA(phba->pcidev->device))
 207                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 208                                                 sizeof (phba->RandomData));
 209
 210         /* Get adapter VPD information */
 211         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 212         if (!lpfc_vpd_data)
 213                 goto out_free_mbox;
 214
 215         do {
 216                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 217                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 218
 219                 if (rc != MBX_SUCCESS) {
 220                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 221                                         "0441 VPD not present on adapter, "
 222                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 223                                         mb->mbxCommand, mb->mbxStatus);
 224                         mb->un.varDmp.word_cnt = 0;
 225                 }
 226                 /* dump mem may return a zero when finished or we got a
 227                  * mailbox error, either way we are done.
 228                  */
 229                 if (mb->un.varDmp.word_cnt == 0)
 230                         break;
 231                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 232                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 233                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 234                                       lpfc_vpd_data + offset,
 235                                       mb->un.varDmp.word_cnt);
 236                 offset += mb->un.varDmp.word_cnt;
 237         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 238         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 239
 240         kfree(lpfc_vpd_data);
 241 out_free_mbox:
 242         mempool_free(pmb, phba->mbox_mem_pool);
 243         return 0;
 244 }
 245
 246 /**
 247  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 248  * @phba: pointer to lpfc hba data structure.
 249  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 250  *
 251  * This is the completion handler for driver's configuring asynchronous event
 252  * mailbox command to the device. If the mailbox command returns successfully,
 253  * it will set internal async event support flag to 1; otherwise, it will
 254  * set internal async event support flag to 0.
 255  **/
 256 static void
 257 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 258 {
 259         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 260                 phba->temp_sensor_support = 1;
 261         else
 262                 phba->temp_sensor_support = 0;
 263         mempool_free(pmboxq, phba->mbox_mem_pool);
 264         return;
 265 }
 266
 267 /**
 268  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 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 dump mailbox command for getting
 273  * wake up parameters. When this command complete, the response contain
 274  * Option rom version of the HBA. This function translate the version number
 275  * into a human readable string and store it in OptionROMVersion.
 276  **/
 277 static void
 278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 279 {
 280         struct prog_id *prg;
 281         uint32_t prog_id_word;
 282         char dist = ' ';
 283         /* character array used for decoding dist type. */
 284         char dist_char[] = "nabx";
 285
 286         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 287                 mempool_free(pmboxq, phba->mbox_mem_pool);
 288                 return;
 289         }
 290
 291         prg = (struct prog_id *) &prog_id_word;
 292
 293         /* word 7 contain option rom version */
 294         prog_id_word = pmboxq->u.mb.un.varWords[7];
 295
 296         /* Decode the Option rom version word to a readable string */
 297         if (prg->dist < 4)
 298                 dist = dist_char[prg->dist];
 299
 300         if ((prg->dist == 3) && (prg->num == 0))
 301                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 302                         prg->ver, prg->rev, prg->lev);
 303         else
 304                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 305                         prg->ver, prg->rev, prg->lev,
 306                         dist, prg->num);
 307         mempool_free(pmboxq, phba->mbox_mem_pool);
 308         return;
 309 }
 310
 311 /**
 312  * lpfc_config_port_post - Perform lpfc initialization after config port
 313  * @phba: pointer to lpfc hba data structure.
 314  *
 315  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 316  * command call. It performs all internal resource and state setups on the
 317  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 318  * ELS ring timers, etc.
 319  *
 320  * Return codes
 321  *   0 - success.
 322  *   Any other value - error.
 323  **/
 324 int
 325 lpfc_config_port_post(struct lpfc_hba *phba)
 326 {
 327         struct lpfc_vport *vport = phba->pport;
 328         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 329         LPFC_MBOXQ_t *pmb;
 330         MAILBOX_t *mb;
 331         struct lpfc_dmabuf *mp;
 332         struct lpfc_sli *psli = &phba->sli;
 333         uint32_t status, timeout;
 334         int i, j;
 335         int rc;
 336
 337         spin_lock_irq(&phba->hbalock);
 338         /*
 339          * If the Config port completed correctly the HBA is not
 340          * over heated any more.
 341          */
 342         if (phba->over_temp_state == HBA_OVER_TEMP)
 343                 phba->over_temp_state = HBA_NORMAL_TEMP;
 344         spin_unlock_irq(&phba->hbalock);
 345
 346         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 347         if (!pmb) {
 348                 phba->link_state = LPFC_HBA_ERROR;
 349                 return -ENOMEM;
 350         }
 351         mb = &pmb->u.mb;
 352
 353         /* Get login parameters for NID.  */
 354         rc = lpfc_read_sparam(phba, pmb, 0);
 355         if (rc) {
 356                 mempool_free(pmb, phba->mbox_mem_pool);
 357                 return -ENOMEM;
 358         }
 359
 360         pmb->vport = vport;
 361         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 362                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 363                                 "0448 Adapter failed init, mbxCmd x%x "
 364                                 "READ_SPARM mbxStatus x%x\n",
 365                                 mb->mbxCommand, mb->mbxStatus);
 366                 phba->link_state = LPFC_HBA_ERROR;
 367                 mp = (struct lpfc_dmabuf *) pmb->context1;
 368                 mempool_free(pmb, phba->mbox_mem_pool);
 369                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 370                 kfree(mp);
 371                 return -EIO;
 372         }
 373
 374         mp = (struct lpfc_dmabuf *) pmb->context1;
 375
 376         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 377         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 378         kfree(mp);
 379         pmb->context1 = NULL;
 380
 381         if (phba->cfg_soft_wwnn)
 382                 u64_to_wwn(phba->cfg_soft_wwnn,
 383                            vport->fc_sparam.nodeName.u.wwn);
 384         if (phba->cfg_soft_wwpn)
 385                 u64_to_wwn(phba->cfg_soft_wwpn,
 386                            vport->fc_sparam.portName.u.wwn);
 387         memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 388                sizeof (struct lpfc_name));
 389         memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 390                sizeof (struct lpfc_name));
 391
 392         /* Update the fc_host data structures with new wwn. */
 393         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 394         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 395         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 396
 397         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 398         /* This should be consolidated into parse_vpd ? - mr */
 399         if (phba->SerialNumber[0] == 0) {
 400                 uint8_t *outptr;
 401
 402                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 403                 for (i = 0; i < 12; i++) {
 404                         status = *outptr++;
 405                         j = ((status & 0xf0) >> 4);
 406                         if (j <= 9)
 407                                 phba->SerialNumber[i] =
 408                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 409                         else
 410                                 phba->SerialNumber[i] =
 411                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 412                         i++;
 413                         j = (status & 0xf);
 414                         if (j <= 9)
 415                                 phba->SerialNumber[i] =
 416                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 417                         else
 418                                 phba->SerialNumber[i] =
 419                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 420                 }
 421         }
 422
 423         lpfc_read_config(phba, pmb);
 424         pmb->vport = vport;
 425         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 426                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 427                                 "0453 Adapter failed to init, mbxCmd x%x "
 428                                 "READ_CONFIG, mbxStatus x%x\n",
 429                                 mb->mbxCommand, mb->mbxStatus);
 430                 phba->link_state = LPFC_HBA_ERROR;
 431                 mempool_free( pmb, phba->mbox_mem_pool);
 432                 return -EIO;
 433         }
 434
 435         /* Check if the port is disabled */
 436         lpfc_sli_read_link_ste(phba);
 437
 438         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 439         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 440                 phba->cfg_hba_queue_depth =
 441                         (mb->un.varRdConfig.max_xri + 1) -
 442                                         lpfc_sli4_get_els_iocb_cnt(phba);
 443
 444         phba->lmt = mb->un.varRdConfig.lmt;
 445
 446         /* Get the default values for Model Name and Description */
 447         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 448
 449         if ((phba->cfg_link_speed > LINK_SPEED_10G)
 450             || ((phba->cfg_link_speed == LINK_SPEED_1G)
 451                 && !(phba->lmt & LMT_1Gb))
 452             || ((phba->cfg_link_speed == LINK_SPEED_2G)
 453                 && !(phba->lmt & LMT_2Gb))
 454             || ((phba->cfg_link_speed == LINK_SPEED_4G)
 455                 && !(phba->lmt & LMT_4Gb))
 456             || ((phba->cfg_link_speed == LINK_SPEED_8G)
 457                 && !(phba->lmt & LMT_8Gb))
 458             || ((phba->cfg_link_speed == LINK_SPEED_10G)
 459                 && !(phba->lmt & LMT_10Gb))) {
 460                 /* Reset link speed to auto */
 461                 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
 462                         "1302 Invalid speed for this board: "
 463                         "Reset link speed to auto: x%x\n",
 464                         phba->cfg_link_speed);
 465                         phba->cfg_link_speed = LINK_SPEED_AUTO;
 466         }
 467
 468         phba->link_state = LPFC_LINK_DOWN;
 469
 470         /* Only process IOCBs on ELS ring till hba_state is READY */
 471         if (psli->ring[psli->extra_ring].cmdringaddr)
 472                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 473         if (psli->ring[psli->fcp_ring].cmdringaddr)
 474                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 475         if (psli->ring[psli->next_ring].cmdringaddr)
 476                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 477
 478         /* Post receive buffers for desired rings */
 479         if (phba->sli_rev != 3)
 480                 lpfc_post_rcv_buf(phba);
 481
 482         /*
 483          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 484          */
 485         if (phba->intr_type == MSIX) {
 486                 rc = lpfc_config_msi(phba, pmb);
 487                 if (rc) {
 488                         mempool_free(pmb, phba->mbox_mem_pool);
 489                         return -EIO;
 490                 }
 491                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 492                 if (rc != MBX_SUCCESS) {
 493                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 494                                         "0352 Config MSI mailbox command "
 495                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 496                                         pmb->u.mb.mbxCommand,
 497                                         pmb->u.mb.mbxStatus);
 498                         mempool_free(pmb, phba->mbox_mem_pool);
 499                         return -EIO;
 500                 }
 501         }
 502
 503         spin_lock_irq(&phba->hbalock);
 504         /* Initialize ERATT handling flag */
 505         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 506
 507         /* Enable appropriate host interrupts */
 508         status = readl(phba->HCregaddr);
 509         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 510         if (psli->num_rings > 0)
 511                 status |= HC_R0INT_ENA;
 512         if (psli->num_rings > 1)
 513                 status |= HC_R1INT_ENA;
 514         if (psli->num_rings > 2)
 515                 status |= HC_R2INT_ENA;
 516         if (psli->num_rings > 3)
 517                 status |= HC_R3INT_ENA;
 518
 519         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 520             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 521                 status &= ~(HC_R0INT_ENA);
 522
 523         writel(status, phba->HCregaddr);
 524         readl(phba->HCregaddr); /* flush */
 525         spin_unlock_irq(&phba->hbalock);
 526
 527         /* Set up ring-0 (ELS) timer */
 528         timeout = phba->fc_ratov * 2;
 529         mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
 530         /* Set up heart beat (HB) timer */
 531         mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 532         phba->hb_outstanding = 0;
 533         phba->last_completion_time = jiffies;
 534         /* Set up error attention (ERATT) polling timer */
 535         mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 536
 537         if (phba->hba_flag & LINK_DISABLED) {
 538                 lpfc_printf_log(phba,
 539                         KERN_ERR, LOG_INIT,
 540                         "2598 Adapter Link is disabled.\n");
 541                 lpfc_down_link(phba, pmb);
 542                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 543                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 544                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 545                         lpfc_printf_log(phba,
 546                         KERN_ERR, LOG_INIT,
 547                         "2599 Adapter failed to issue DOWN_LINK"
 548                         " mbox command rc 0x%x\n", rc);
 549
 550                         mempool_free(pmb, phba->mbox_mem_pool);
 551                         return -EIO;
 552                 }
 553         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 554                 lpfc_init_link(phba, pmb, phba->cfg_topology,
 555                         phba->cfg_link_speed);
 556                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 557                 lpfc_set_loopback_flag(phba);
 558                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 559                 if (rc != MBX_SUCCESS) {
 560                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 561                                 "0454 Adapter failed to init, mbxCmd x%x "
 562                                 "INIT_LINK, mbxStatus x%x\n",
 563                                 mb->mbxCommand, mb->mbxStatus);
 564
 565                         /* Clear all interrupt enable conditions */
 566                         writel(0, phba->HCregaddr);
 567                         readl(phba->HCregaddr); /* flush */
 568                         /* Clear all pending interrupts */
 569                         writel(0xffffffff, phba->HAregaddr);
 570                         readl(phba->HAregaddr); /* flush */
 571
 572                         phba->link_state = LPFC_HBA_ERROR;
 573                         if (rc != MBX_BUSY)
 574                                 mempool_free(pmb, phba->mbox_mem_pool);
 575                         return -EIO;
 576                 }
 577         }
 578         /* MBOX buffer will be freed in mbox compl */
 579         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 580         if (!pmb) {
 581                 phba->link_state = LPFC_HBA_ERROR;
 582                 return -ENOMEM;
 583         }
 584
 585         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 586         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 587         pmb->vport = phba->pport;
 588         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 589
 590         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 591                 lpfc_printf_log(phba,
 592                                 KERN_ERR,
 593                                 LOG_INIT,
 594                                 "0456 Adapter failed to issue "
 595                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 596                                 rc);
 597                 mempool_free(pmb, phba->mbox_mem_pool);
 598         }
 599
 600         /* Get Option rom version */
 601         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 602         if (!pmb) {
 603                 phba->link_state = LPFC_HBA_ERROR;
 604                 return -ENOMEM;
 605         }
 606
 607         lpfc_dump_wakeup_param(phba, pmb);
 608         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 609         pmb->vport = phba->pport;
 610         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 611
 612         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 613                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 614                                 "to get Option ROM version status x%x\n", rc);
 615                 mempool_free(pmb, phba->mbox_mem_pool);
 616         }
 617
 618         return 0;
 619 }
 620
 621 /**
 622  * lpfc_hba_init_link - Initialize the FC link
 623  * @phba: pointer to lpfc hba data structure.
 624  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 625  *
 626  * This routine will issue the INIT_LINK mailbox command call.
 627  * It is available to other drivers through the lpfc_hba data
 628  * structure for use as a delayed link up mechanism with the
 629  * module parameter lpfc_suppress_link_up.
 630  *
 631  * Return code
 632  *              0 - success
 633  *              Any other value - error
 634  **/
 635 int
 636 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 637 {
 638         struct lpfc_vport *vport = phba->pport;
 639         LPFC_MBOXQ_t *pmb;
 640         MAILBOX_t *mb;
 641         int rc;
 642
 643         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 644         if (!pmb) {
 645                 phba->link_state = LPFC_HBA_ERROR;
 646                 return -ENOMEM;
 647         }
 648         mb = &pmb->u.mb;
 649         pmb->vport = vport;
 650
 651         lpfc_init_link(phba, pmb, phba->cfg_topology,
 652                 phba->cfg_link_speed);
 653         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 654         lpfc_set_loopback_flag(phba);
 655         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 656         if (rc != MBX_SUCCESS) {
 657                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 658                         "0498 Adapter failed to init, mbxCmd x%x "
 659                         "INIT_LINK, mbxStatus x%x\n",
 660                         mb->mbxCommand, mb->mbxStatus);
 661                 /* Clear all interrupt enable conditions */
 662                 writel(0, phba->HCregaddr);
 663                 readl(phba->HCregaddr); /* flush */
 664                 /* Clear all pending interrupts */
 665                 writel(0xffffffff, phba->HAregaddr);
 666                 readl(phba->HAregaddr); /* flush */
 667                 phba->link_state = LPFC_HBA_ERROR;
 668                 if (rc != MBX_BUSY || flag == MBX_POLL)
 669                         mempool_free(pmb, phba->mbox_mem_pool);
 670                 return -EIO;
 671         }
 672         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 673         if (flag == MBX_POLL)
 674                 mempool_free(pmb, phba->mbox_mem_pool);
 675
 676         return 0;
 677 }
 678
 679 /**
 680  * lpfc_hba_down_link - this routine downs the FC link
 681  * @phba: pointer to lpfc hba data structure.
 682  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 683  *
 684  * This routine will issue the DOWN_LINK mailbox command call.
 685  * It is available to other drivers through the lpfc_hba data
 686  * structure for use to stop the link.
 687  *
 688  * Return code
 689  *              0 - success
 690  *              Any other value - error
 691  **/
 692 int
 693 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 694 {
 695         LPFC_MBOXQ_t *pmb;
 696         int rc;
 697
 698         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 699         if (!pmb) {
 700                 phba->link_state = LPFC_HBA_ERROR;
 701                 return -ENOMEM;
 702         }
 703
 704         lpfc_printf_log(phba,
 705                 KERN_ERR, LOG_INIT,
 706                 "0491 Adapter Link is disabled.\n");
 707         lpfc_down_link(phba, pmb);
 708         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 709         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 710         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 711                 lpfc_printf_log(phba,
 712                 KERN_ERR, LOG_INIT,
 713                 "2522 Adapter failed to issue DOWN_LINK"
 714                 " mbox command rc 0x%x\n", rc);
 715
 716                 mempool_free(pmb, phba->mbox_mem_pool);
 717                 return -EIO;
 718         }
 719         if (flag == MBX_POLL)
 720                 mempool_free(pmb, phba->mbox_mem_pool);
 721
 722         return 0;
 723 }
 724
 725 /**
 726  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 727  * @phba: pointer to lpfc HBA data structure.
 728  *
 729  * This routine will do LPFC uninitialization before the HBA is reset when
 730  * bringing down the SLI Layer.
 731  *
 732  * Return codes
 733  *   0 - success.
 734  *   Any other value - error.
 735  **/
 736 int
 737 lpfc_hba_down_prep(struct lpfc_hba *phba)
 738 {
 739         struct lpfc_vport **vports;
 740         int i;
 741
 742         if (phba->sli_rev <= LPFC_SLI_REV3) {
 743                 /* Disable interrupts */
 744                 writel(0, phba->HCregaddr);
 745                 readl(phba->HCregaddr); /* flush */
 746         }
 747
 748         if (phba->pport->load_flag & FC_UNLOADING)
 749                 lpfc_cleanup_discovery_resources(phba->pport);
 750         else {
 751                 vports = lpfc_create_vport_work_array(phba);
 752                 if (vports != NULL)
 753                         for (i = 0; i <= phba->max_vports &&
 754                                 vports[i] != NULL; i++)
 755                                 lpfc_cleanup_discovery_resources(vports[i]);
 756                 lpfc_destroy_vport_work_array(phba, vports);
 757         }
 758         return 0;
 759 }
 760
 761 /**
 762  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 763  * @phba: pointer to lpfc HBA data structure.
 764  *
 765  * This routine will do uninitialization after the HBA is reset when bring
 766  * down the SLI Layer.
 767  *
 768  * Return codes
 769  *   0 - success.
 770  *   Any other value - error.
 771  **/
 772 static int
 773 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 774 {
 775         struct lpfc_sli *psli = &phba->sli;
 776         struct lpfc_sli_ring *pring;
 777         struct lpfc_dmabuf *mp, *next_mp;
 778         LIST_HEAD(completions);
 779         int i;
 780
 781         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 782                 lpfc_sli_hbqbuf_free_all(phba);
 783         else {
 784                 /* Cleanup preposted buffers on the ELS ring */
 785                 pring = &psli->ring[LPFC_ELS_RING];
 786                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 787                         list_del(&mp->list);
 788                         pring->postbufq_cnt--;
 789                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 790                         kfree(mp);
 791                 }
 792         }
 793
 794         spin_lock_irq(&phba->hbalock);
 795         for (i = 0; i < psli->num_rings; i++) {
 796                 pring = &psli->ring[i];
 797
 798                 /* At this point in time the HBA is either reset or DOA. Either
 799                  * way, nothing should be on txcmplq as it will NEVER complete.
 800                  */
 801                 list_splice_init(&pring->txcmplq, &completions);
 802                 pring->txcmplq_cnt = 0;
 803                 spin_unlock_irq(&phba->hbalock);
 804
 805                 /* Cancel all the IOCBs from the completions list */
 806                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 807                                       IOERR_SLI_ABORTED);
 808
 809                 lpfc_sli_abort_iocb_ring(phba, pring);
 810                 spin_lock_irq(&phba->hbalock);
 811         }
 812         spin_unlock_irq(&phba->hbalock);
 813
 814         return 0;
 815 }
 816 /**
 817  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 818  * @phba: pointer to lpfc HBA data structure.
 819  *
 820  * This routine will do uninitialization after the HBA is reset when bring
 821  * down the SLI Layer.
 822  *
 823  * Return codes
 824  *   0 - success.
 825  *   Any other value - error.
 826  **/
 827 static int
 828 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 829 {
 830         struct lpfc_scsi_buf *psb, *psb_next;
 831         LIST_HEAD(aborts);
 832         int ret;
 833         unsigned long iflag = 0;
 834         struct lpfc_sglq *sglq_entry = NULL;
 835
 836         ret = lpfc_hba_down_post_s3(phba);
 837         if (ret)
 838                 return ret;
 839         /* At this point in time the HBA is either reset or DOA. Either
 840          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 841          * on the lpfc_sgl_list so that it can either be freed if the
 842          * driver is unloading or reposted if the driver is restarting
 843          * the port.
 844          */
 845         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 846                                         /* scsl_buf_list */
 847         /* abts_sgl_list_lock required because worker thread uses this
 848          * list.
 849          */
 850         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 851         list_for_each_entry(sglq_entry,
 852                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 853                 sglq_entry->state = SGL_FREED;
 854
 855         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 856                         &phba->sli4_hba.lpfc_sgl_list);
 857         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 858         /* abts_scsi_buf_list_lock required because worker thread uses this
 859          * list.
 860          */
 861         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 862         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 863                         &aborts);
 864         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 865         spin_unlock_irq(&phba->hbalock);
 866
 867         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 868                 psb->pCmd = NULL;
 869                 psb->status = IOSTAT_SUCCESS;
 870         }
 871         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 872         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 873         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 874         return 0;
 875 }
 876
 877 /**
 878  * lpfc_hba_down_post - Wrapper func for hba down post routine
 879  * @phba: pointer to lpfc HBA data structure.
 880  *
 881  * This routine wraps the actual SLI3 or SLI4 routine for performing
 882  * uninitialization after the HBA is reset when bring down the SLI Layer.
 883  *
 884  * Return codes
 885  *   0 - success.
 886  *   Any other value - error.
 887  **/
 888 int
 889 lpfc_hba_down_post(struct lpfc_hba *phba)
 890 {
 891         return (*phba->lpfc_hba_down_post)(phba);
 892 }
 893
 894 /**
 895  * lpfc_hb_timeout - The HBA-timer timeout handler
 896  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 897  *
 898  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 899  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 900  * work-port-events bitmap and the worker thread is notified. This timeout
 901  * event will be used by the worker thread to invoke the actual timeout
 902  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 903  * be performed in the timeout handler and the HBA timeout event bit shall
 904  * be cleared by the worker thread after it has taken the event bitmap out.
 905  **/
 906 static void
 907 lpfc_hb_timeout(unsigned long ptr)
 908 {
 909         struct lpfc_hba *phba;
 910         uint32_t tmo_posted;
 911         unsigned long iflag;
 912
 913         phba = (struct lpfc_hba *)ptr;
 914
 915         /* Check for heart beat timeout conditions */
 916         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 917         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 918         if (!tmo_posted)
 919                 phba->pport->work_port_events |= WORKER_HB_TMO;
 920         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 921
 922         /* Tell the worker thread there is work to do */
 923         if (!tmo_posted)
 924                 lpfc_worker_wake_up(phba);
 925         return;
 926 }
 927
 928 /**
 929  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 930  * @phba: pointer to lpfc hba data structure.
 931  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 932  *
 933  * This is the callback function to the lpfc heart-beat mailbox command.
 934  * If configured, the lpfc driver issues the heart-beat mailbox command to
 935  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 936  * heart-beat mailbox command is issued, the driver shall set up heart-beat
 937  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 938  * heart-beat outstanding state. Once the mailbox command comes back and
 939  * no error conditions detected, the heart-beat mailbox command timer is
 940  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 941  * state is cleared for the next heart-beat. If the timer expired with the
 942  * heart-beat outstanding state set, the driver will put the HBA offline.
 943  **/
 944 static void
 945 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 946 {
 947         unsigned long drvr_flag;
 948
 949         spin_lock_irqsave(&phba->hbalock, drvr_flag);
 950         phba->hb_outstanding = 0;
 951         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
 952
 953         /* Check and reset heart-beat timer is necessary */
 954         mempool_free(pmboxq, phba->mbox_mem_pool);
 955         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
 956                 !(phba->link_state == LPFC_HBA_ERROR) &&
 957                 !(phba->pport->load_flag & FC_UNLOADING))
 958                 mod_timer(&phba->hb_tmofunc,
 959                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 960         return;
 961 }
 962
 963 /**
 964  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
 965  * @phba: pointer to lpfc hba data structure.
 966  *
 967  * This is the actual HBA-timer timeout handler to be invoked by the worker
 968  * thread whenever the HBA timer fired and HBA-timeout event posted. This
 969  * handler performs any periodic operations needed for the device. If such
 970  * periodic event has already been attended to either in the interrupt handler
 971  * or by processing slow-ring or fast-ring events within the HBA-timer
 972  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
 973  * the timer for the next timeout period. If lpfc heart-beat mailbox command
 974  * is configured and there is no heart-beat mailbox command outstanding, a
 975  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
 976  * has been a heart-beat mailbox command outstanding, the HBA shall be put
 977  * to offline.
 978  **/
 979 void
 980 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
 981 {
 982         struct lpfc_vport **vports;
 983         LPFC_MBOXQ_t *pmboxq;
 984         struct lpfc_dmabuf *buf_ptr;
 985         int retval, i;
 986         struct lpfc_sli *psli = &phba->sli;
 987         LIST_HEAD(completions);
 988
 989         vports = lpfc_create_vport_work_array(phba);
 990         if (vports != NULL)
 991                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
 992                         lpfc_rcv_seq_check_edtov(vports[i]);
 993         lpfc_destroy_vport_work_array(phba, vports);
 994
 995         if ((phba->link_state == LPFC_HBA_ERROR) ||
 996                 (phba->pport->load_flag & FC_UNLOADING) ||
 997                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
 998                 return;
 999
1000         spin_lock_irq(&phba->pport->work_port_lock);
1001
1002         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1003                 jiffies)) {
1004                 spin_unlock_irq(&phba->pport->work_port_lock);
1005                 if (!phba->hb_outstanding)
1006                         mod_timer(&phba->hb_tmofunc,
1007                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1008                 else
1009                         mod_timer(&phba->hb_tmofunc,
1010                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1011                 return;
1012         }
1013         spin_unlock_irq(&phba->pport->work_port_lock);
1014
1015         if (phba->elsbuf_cnt &&
1016                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1017                 spin_lock_irq(&phba->hbalock);
1018                 list_splice_init(&phba->elsbuf, &completions);
1019                 phba->elsbuf_cnt = 0;
1020                 phba->elsbuf_prev_cnt = 0;
1021                 spin_unlock_irq(&phba->hbalock);
1022
1023                 while (!list_empty(&completions)) {
1024                         list_remove_head(&completions, buf_ptr,
1025                                 struct lpfc_dmabuf, list);
1026                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1027                         kfree(buf_ptr);
1028                 }
1029         }
1030         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1031
1032         /* If there is no heart beat outstanding, issue a heartbeat command */
1033         if (phba->cfg_enable_hba_heartbeat) {
1034                 if (!phba->hb_outstanding) {
1035                         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
1036                         if (!pmboxq) {
1037                                 mod_timer(&phba->hb_tmofunc,
1038                                           jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1039                                 return;
1040                         }
1041
1042                         lpfc_heart_beat(phba, pmboxq);
1043                         pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1044                         pmboxq->vport = phba->pport;
1045                         retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1046
1047                         if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1048                                 mempool_free(pmboxq, phba->mbox_mem_pool);
1049                                 mod_timer(&phba->hb_tmofunc,
1050                                           jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1051                                 return;
1052                         }
1053                         mod_timer(&phba->hb_tmofunc,
1054                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1055                         phba->hb_outstanding = 1;
1056                         return;
1057                 } else {
1058                         /*
1059                         * If heart beat timeout called with hb_outstanding set
1060                         * we need to take the HBA offline.
1061                         */
1062                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1063                                         "0459 Adapter heartbeat failure, "
1064                                         "taking this port offline.\n");
1065
1066                         spin_lock_irq(&phba->hbalock);
1067                         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1068                         spin_unlock_irq(&phba->hbalock);
1069
1070                         lpfc_offline_prep(phba);
1071                         lpfc_offline(phba);
1072                         lpfc_unblock_mgmt_io(phba);
1073                         phba->link_state = LPFC_HBA_ERROR;
1074                         lpfc_hba_down_post(phba);
1075                 }
1076         }
1077 }
1078
1079 /**
1080  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1081  * @phba: pointer to lpfc hba data structure.
1082  *
1083  * This routine is called to bring the HBA offline when HBA hardware error
1084  * other than Port Error 6 has been detected.
1085  **/
1086 static void
1087 lpfc_offline_eratt(struct lpfc_hba *phba)
1088 {
1089         struct lpfc_sli   *psli = &phba->sli;
1090
1091         spin_lock_irq(&phba->hbalock);
1092         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1093         spin_unlock_irq(&phba->hbalock);
1094         lpfc_offline_prep(phba);
1095
1096         lpfc_offline(phba);
1097         lpfc_reset_barrier(phba);
1098         spin_lock_irq(&phba->hbalock);
1099         lpfc_sli_brdreset(phba);
1100         spin_unlock_irq(&phba->hbalock);
1101         lpfc_hba_down_post(phba);
1102         lpfc_sli_brdready(phba, HS_MBRDY);
1103         lpfc_unblock_mgmt_io(phba);
1104         phba->link_state = LPFC_HBA_ERROR;
1105         return;
1106 }
1107
1108 /**
1109  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1110  * @phba: pointer to lpfc hba data structure.
1111  *
1112  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1113  * other than Port Error 6 has been detected.
1114  **/
1115 static void
1116 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1117 {
1118         lpfc_offline_prep(phba);
1119         lpfc_offline(phba);
1120         lpfc_sli4_brdreset(phba);
1121         lpfc_hba_down_post(phba);
1122         lpfc_sli4_post_status_check(phba);
1123         lpfc_unblock_mgmt_io(phba);
1124         phba->link_state = LPFC_HBA_ERROR;
1125 }
1126
1127 /**
1128  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1129  * @phba: pointer to lpfc hba data structure.
1130  *
1131  * This routine is invoked to handle the deferred HBA hardware error
1132  * conditions. This type of error is indicated by HBA by setting ER1
1133  * and another ER bit in the host status register. The driver will
1134  * wait until the ER1 bit clears before handling the error condition.
1135  **/
1136 static void
1137 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1138 {
1139         uint32_t old_host_status = phba->work_hs;
1140         struct lpfc_sli_ring  *pring;
1141         struct lpfc_sli *psli = &phba->sli;
1142
1143         /* If the pci channel is offline, ignore possible errors,
1144          * since we cannot communicate with the pci card anyway.
1145          */
1146         if (pci_channel_offline(phba->pcidev)) {
1147                 spin_lock_irq(&phba->hbalock);
1148                 phba->hba_flag &= ~DEFER_ERATT;
1149                 spin_unlock_irq(&phba->hbalock);
1150                 return;
1151         }
1152
1153         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1154                 "0479 Deferred Adapter Hardware Error "
1155                 "Data: x%x x%x x%x\n",
1156                 phba->work_hs,
1157                 phba->work_status[0], phba->work_status[1]);
1158
1159         spin_lock_irq(&phba->hbalock);
1160         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1161         spin_unlock_irq(&phba->hbalock);
1162
1163
1164         /*
1165          * Firmware stops when it triggred erratt. That could cause the I/Os
1166          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1167          * SCSI layer retry it after re-establishing link.
1168          */
1169         pring = &psli->ring[psli->fcp_ring];
1170         lpfc_sli_abort_iocb_ring(phba, pring);
1171
1172         /*
1173          * There was a firmware error. Take the hba offline and then
1174          * attempt to restart it.
1175          */
1176         lpfc_offline_prep(phba);
1177         lpfc_offline(phba);
1178
1179         /* Wait for the ER1 bit to clear.*/
1180         while (phba->work_hs & HS_FFER1) {
1181                 msleep(100);
1182                 phba->work_hs = readl(phba->HSregaddr);
1183                 /* If driver is unloading let the worker thread continue */
1184                 if (phba->pport->load_flag & FC_UNLOADING) {
1185                         phba->work_hs = 0;
1186                         break;
1187                 }
1188         }
1189
1190         /*
1191          * This is to ptrotect against a race condition in which
1192          * first write to the host attention register clear the
1193          * host status register.
1194          */
1195         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1196                 phba->work_hs = old_host_status & ~HS_FFER1;
1197
1198         spin_lock_irq(&phba->hbalock);
1199         phba->hba_flag &= ~DEFER_ERATT;
1200         spin_unlock_irq(&phba->hbalock);
1201         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1202         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1203 }
1204
1205 static void
1206 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1207 {
1208         struct lpfc_board_event_header board_event;
1209         struct Scsi_Host *shost;
1210
1211         board_event.event_type = FC_REG_BOARD_EVENT;
1212         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1213         shost = lpfc_shost_from_vport(phba->pport);
1214         fc_host_post_vendor_event(shost, fc_get_event_number(),
1215                                   sizeof(board_event),
1216                                   (char *) &board_event,
1217                                   LPFC_NL_VENDOR_ID);
1218 }
1219
1220 /**
1221  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1222  * @phba: pointer to lpfc hba data structure.
1223  *
1224  * This routine is invoked to handle the following HBA hardware error
1225  * conditions:
1226  * 1 - HBA error attention interrupt
1227  * 2 - DMA ring index out of range
1228  * 3 - Mailbox command came back as unknown
1229  **/
1230 static void
1231 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1232 {
1233         struct lpfc_vport *vport = phba->pport;
1234         struct lpfc_sli   *psli = &phba->sli;
1235         struct lpfc_sli_ring  *pring;
1236         uint32_t event_data;
1237         unsigned long temperature;
1238         struct temp_event temp_event_data;
1239         struct Scsi_Host  *shost;
1240
1241         /* If the pci channel is offline, ignore possible errors,
1242          * since we cannot communicate with the pci card anyway.
1243          */
1244         if (pci_channel_offline(phba->pcidev)) {
1245                 spin_lock_irq(&phba->hbalock);
1246                 phba->hba_flag &= ~DEFER_ERATT;
1247                 spin_unlock_irq(&phba->hbalock);
1248                 return;
1249         }
1250
1251         /* If resets are disabled then leave the HBA alone and return */
1252         if (!phba->cfg_enable_hba_reset)
1253                 return;
1254
1255         /* Send an internal error event to mgmt application */
1256         lpfc_board_errevt_to_mgmt(phba);
1257
1258         if (phba->hba_flag & DEFER_ERATT)
1259                 lpfc_handle_deferred_eratt(phba);
1260
1261         if (phba->work_hs & HS_FFER6) {
1262                 /* Re-establishing Link */
1263                 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1264                                 "1301 Re-establishing Link "
1265                                 "Data: x%x x%x x%x\n",
1266                                 phba->work_hs,
1267                                 phba->work_status[0], phba->work_status[1]);
1268
1269                 spin_lock_irq(&phba->hbalock);
1270                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1271                 spin_unlock_irq(&phba->hbalock);
1272
1273                 /*
1274                 * Firmware stops when it triggled erratt with HS_FFER6.
1275                 * That could cause the I/Os dropped by the firmware.
1276                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1277                 * retry it after re-establishing link.
1278                 */
1279                 pring = &psli->ring[psli->fcp_ring];
1280                 lpfc_sli_abort_iocb_ring(phba, pring);
1281
1282                 /*
1283                  * There was a firmware error.  Take the hba offline and then
1284                  * attempt to restart it.
1285                  */
1286                 lpfc_offline_prep(phba);
1287                 lpfc_offline(phba);
1288                 lpfc_sli_brdrestart(phba);
1289                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1290                         lpfc_unblock_mgmt_io(phba);
1291                         return;
1292                 }
1293                 lpfc_unblock_mgmt_io(phba);
1294         } else if (phba->work_hs & HS_CRIT_TEMP) {
1295                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1296                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1297                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1298                 temp_event_data.data = (uint32_t)temperature;
1299
1300                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1301                                 "0406 Adapter maximum temperature exceeded "
1302                                 "(%ld), taking this port offline "
1303                                 "Data: x%x x%x x%x\n",
1304                                 temperature, phba->work_hs,
1305                                 phba->work_status[0], phba->work_status[1]);
1306
1307                 shost = lpfc_shost_from_vport(phba->pport);
1308                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1309                                           sizeof(temp_event_data),
1310                                           (char *) &temp_event_data,
1311                                           SCSI_NL_VID_TYPE_PCI
1312                                           | PCI_VENDOR_ID_EMULEX);
1313
1314                 spin_lock_irq(&phba->hbalock);
1315                 phba->over_temp_state = HBA_OVER_TEMP;
1316                 spin_unlock_irq(&phba->hbalock);
1317                 lpfc_offline_eratt(phba);
1318
1319         } else {
1320                 /* The if clause above forces this code path when the status
1321                  * failure is a value other than FFER6. Do not call the offline
1322                  * twice. This is the adapter hardware error path.
1323                  */
1324                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1325                                 "0457 Adapter Hardware Error "
1326                                 "Data: x%x x%x x%x\n",
1327                                 phba->work_hs,
1328                                 phba->work_status[0], phba->work_status[1]);
1329
1330                 event_data = FC_REG_DUMP_EVENT;
1331                 shost = lpfc_shost_from_vport(vport);
1332                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1333                                 sizeof(event_data), (char *) &event_data,
1334                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1335
1336                 lpfc_offline_eratt(phba);
1337         }
1338         return;
1339 }
1340
1341 /**
1342  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1343  * @phba: pointer to lpfc hba data structure.
1344  *
1345  * This routine is invoked to handle the SLI4 HBA hardware error attention
1346  * conditions.
1347  **/
1348 static void
1349 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1350 {
1351         struct lpfc_vport *vport = phba->pport;
1352         uint32_t event_data;
1353         struct Scsi_Host *shost;
1354
1355         /* If the pci channel is offline, ignore possible errors, since
1356          * we cannot communicate with the pci card anyway.
1357          */
1358         if (pci_channel_offline(phba->pcidev))
1359                 return;
1360         /* If resets are disabled then leave the HBA alone and return */
1361         if (!phba->cfg_enable_hba_reset)
1362                 return;
1363
1364         /* Send an internal error event to mgmt application */
1365         lpfc_board_errevt_to_mgmt(phba);
1366
1367         /* For now, the actual action for SLI4 device handling is not
1368          * specified yet, just treated it as adaptor hardware failure
1369          */
1370         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1371                         "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1372                         phba->work_status[0], phba->work_status[1]);
1373
1374         event_data = FC_REG_DUMP_EVENT;
1375         shost = lpfc_shost_from_vport(vport);
1376         fc_host_post_vendor_event(shost, fc_get_event_number(),
1377                                   sizeof(event_data), (char *) &event_data,
1378                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1379
1380         lpfc_sli4_offline_eratt(phba);
1381 }
1382
1383 /**
1384  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1385  * @phba: pointer to lpfc HBA data structure.
1386  *
1387  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1388  * routine from the API jump table function pointer from the lpfc_hba struct.
1389  *
1390  * Return codes
1391  *   0 - success.
1392  *   Any other value - error.
1393  **/
1394 void
1395 lpfc_handle_eratt(struct lpfc_hba *phba)
1396 {
1397         (*phba->lpfc_handle_eratt)(phba);
1398 }
1399
1400 /**
1401  * lpfc_handle_latt - The HBA link event handler
1402  * @phba: pointer to lpfc hba data structure.
1403  *
1404  * This routine is invoked from the worker thread to handle a HBA host
1405  * attention link event.
1406  **/
1407 void
1408 lpfc_handle_latt(struct lpfc_hba *phba)
1409 {
1410         struct lpfc_vport *vport = phba->pport;
1411         struct lpfc_sli   *psli = &phba->sli;
1412         LPFC_MBOXQ_t *pmb;
1413         volatile uint32_t control;
1414         struct lpfc_dmabuf *mp;
1415         int rc = 0;
1416
1417         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1418         if (!pmb) {
1419                 rc = 1;
1420                 goto lpfc_handle_latt_err_exit;
1421         }
1422
1423         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1424         if (!mp) {
1425                 rc = 2;
1426                 goto lpfc_handle_latt_free_pmb;
1427         }
1428
1429         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1430         if (!mp->virt) {
1431                 rc = 3;
1432                 goto lpfc_handle_latt_free_mp;
1433         }
1434
1435         /* Cleanup any outstanding ELS commands */
1436         lpfc_els_flush_all_cmd(phba);
1437
1438         psli->slistat.link_event++;
1439         lpfc_read_la(phba, pmb, mp);
1440         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1441         pmb->vport = vport;
1442         /* Block ELS IOCBs until we have processed this mbox command */
1443         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1444         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1445         if (rc == MBX_NOT_FINISHED) {
1446                 rc = 4;
1447                 goto lpfc_handle_latt_free_mbuf;
1448         }
1449
1450         /* Clear Link Attention in HA REG */
1451         spin_lock_irq(&phba->hbalock);
1452         writel(HA_LATT, phba->HAregaddr);
1453         readl(phba->HAregaddr); /* flush */
1454         spin_unlock_irq(&phba->hbalock);
1455
1456         return;
1457
1458 lpfc_handle_latt_free_mbuf:
1459         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1460         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1461 lpfc_handle_latt_free_mp:
1462         kfree(mp);
1463 lpfc_handle_latt_free_pmb:
1464         mempool_free(pmb, phba->mbox_mem_pool);
1465 lpfc_handle_latt_err_exit:
1466         /* Enable Link attention interrupts */
1467         spin_lock_irq(&phba->hbalock);
1468         psli->sli_flag |= LPFC_PROCESS_LA;
1469         control = readl(phba->HCregaddr);
1470         control |= HC_LAINT_ENA;
1471         writel(control, phba->HCregaddr);
1472         readl(phba->HCregaddr); /* flush */
1473
1474         /* Clear Link Attention in HA REG */
1475         writel(HA_LATT, phba->HAregaddr);
1476         readl(phba->HAregaddr); /* flush */
1477         spin_unlock_irq(&phba->hbalock);
1478         lpfc_linkdown(phba);
1479         phba->link_state = LPFC_HBA_ERROR;
1480
1481         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1482                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1483
1484         return;
1485 }
1486
1487 /**
1488  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1489  * @phba: pointer to lpfc hba data structure.
1490  * @vpd: pointer to the vital product data.
1491  * @len: length of the vital product data in bytes.
1492  *
1493  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1494  * an array of characters. In this routine, the ModelName, ProgramType, and
1495  * ModelDesc, etc. fields of the phba data structure will be populated.
1496  *
1497  * Return codes
1498  *   0 - pointer to the VPD passed in is NULL
1499  *   1 - success
1500  **/
1501 int
1502 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1503 {
1504         uint8_t lenlo, lenhi;
1505         int Length;
1506         int i, j;
1507         int finished = 0;
1508         int index = 0;
1509
1510         if (!vpd)
1511                 return 0;
1512
1513         /* Vital Product */
1514         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1515                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1516                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1517                         (uint32_t) vpd[3]);
1518         while (!finished && (index < (len - 4))) {
1519                 switch (vpd[index]) {
1520                 case 0x82:
1521                 case 0x91:
1522                         index += 1;
1523                         lenlo = vpd[index];
1524                         index += 1;
1525                         lenhi = vpd[index];
1526                         index += 1;
1527                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1528                         index += i;
1529                         break;
1530                 case 0x90:
1531                         index += 1;
1532                         lenlo = vpd[index];
1533                         index += 1;
1534                         lenhi = vpd[index];
1535                         index += 1;
1536                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1537                         if (Length > len - index)
1538                                 Length = len - index;
1539                         while (Length > 0) {
1540                         /* Look for Serial Number */
1541                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1542                                 index += 2;
1543                                 i = vpd[index];
1544                                 index += 1;
1545                                 j = 0;
1546                                 Length -= (3+i);
1547                                 while(i--) {
1548                                         phba->SerialNumber[j++] = vpd[index++];
1549                                         if (j == 31)
1550                                                 break;
1551                                 }
1552                                 phba->SerialNumber[j] = 0;
1553                                 continue;
1554                         }
1555                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1556                                 phba->vpd_flag |= VPD_MODEL_DESC;
1557                                 index += 2;
1558                                 i = vpd[index];
1559                                 index += 1;
1560                                 j = 0;
1561                                 Length -= (3+i);
1562                                 while(i--) {
1563                                         phba->ModelDesc[j++] = vpd[index++];
1564                                         if (j == 255)
1565                                                 break;
1566                                 }
1567                                 phba->ModelDesc[j] = 0;
1568                                 continue;
1569                         }
1570                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1571                                 phba->vpd_flag |= VPD_MODEL_NAME;
1572                                 index += 2;
1573                                 i = vpd[index];
1574                                 index += 1;
1575                                 j = 0;
1576                                 Length -= (3+i);
1577                                 while(i--) {
1578                                         phba->ModelName[j++] = vpd[index++];
1579                                         if (j == 79)
1580                                                 break;
1581                                 }
1582                                 phba->ModelName[j] = 0;
1583                                 continue;
1584                         }
1585                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1586                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1587                                 index += 2;
1588                                 i = vpd[index];
1589                                 index += 1;
1590                                 j = 0;
1591                                 Length -= (3+i);
1592                                 while(i--) {
1593                                         phba->ProgramType[j++] = vpd[index++];
1594                                         if (j == 255)
1595                                                 break;
1596                                 }
1597                                 phba->ProgramType[j] = 0;
1598                                 continue;
1599                         }
1600                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1601                                 phba->vpd_flag |= VPD_PORT;
1602                                 index += 2;
1603                                 i = vpd[index];
1604                                 index += 1;
1605                                 j = 0;
1606                                 Length -= (3+i);
1607                                 while(i--) {
1608                                 phba->Port[j++] = vpd[index++];
1609                                 if (j == 19)
1610                                         break;
1611                                 }
1612                                 phba->Port[j] = 0;
1613                                 continue;
1614                         }
1615                         else {
1616                                 index += 2;
1617                                 i = vpd[index];
1618                                 index += 1;
1619                                 index += i;
1620                                 Length -= (3 + i);
1621                         }
1622                 }
1623                 finished = 0;
1624                 break;
1625                 case 0x78:
1626                         finished = 1;
1627                         break;
1628                 default:
1629                         index ++;
1630                         break;
1631                 }
1632         }
1633
1634         return(1);
1635 }
1636
1637 /**
1638  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1639  * @phba: pointer to lpfc hba data structure.
1640  * @mdp: pointer to the data structure to hold the derived model name.
1641  * @descp: pointer to the data structure to hold the derived description.
1642  *
1643  * This routine retrieves HBA's description based on its registered PCI device
1644  * ID. The @descp passed into this function points to an array of 256 chars. It
1645  * shall be returned with the model name, maximum speed, and the host bus type.
1646  * The @mdp passed into this function points to an array of 80 chars. When the
1647  * function returns, the @mdp will be filled with the model name.
1648  **/
1649 static void
1650 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1651 {
1652         lpfc_vpd_t *vp;
1653         uint16_t dev_id = phba->pcidev->device;
1654         int max_speed;
1655         int GE = 0;
1656         int oneConnect = 0; /* default is not a oneConnect */
1657         struct {
1658                 char *name;
1659                 char *bus;
1660                 char *function;
1661         } m = {"<Unknown>", "", ""};
1662
1663         if (mdp && mdp[0] != '\0'
1664                 && descp && descp[0] != '\0')
1665                 return;
1666
1667         if (phba->lmt & LMT_10Gb)
1668                 max_speed = 10;
1669         else if (phba->lmt & LMT_8Gb)
1670                 max_speed = 8;
1671         else if (phba->lmt & LMT_4Gb)
1672                 max_speed = 4;
1673         else if (phba->lmt & LMT_2Gb)
1674                 max_speed = 2;
1675         else
1676                 max_speed = 1;
1677
1678         vp = &phba->vpd;
1679
1680         switch (dev_id) {
1681         case PCI_DEVICE_ID_FIREFLY:
1682                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1683                 break;
1684         case PCI_DEVICE_ID_SUPERFLY:
1685                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1686                         m = (typeof(m)){"LP7000", "PCI",
1687                                         "Fibre Channel Adapter"};
1688                 else
1689                         m = (typeof(m)){"LP7000E", "PCI",
1690                                         "Fibre Channel Adapter"};
1691                 break;
1692         case PCI_DEVICE_ID_DRAGONFLY:
1693                 m = (typeof(m)){"LP8000", "PCI",
1694                                 "Fibre Channel Adapter"};
1695                 break;
1696         case PCI_DEVICE_ID_CENTAUR:
1697                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1698                         m = (typeof(m)){"LP9002", "PCI",
1699                                         "Fibre Channel Adapter"};
1700                 else
1701                         m = (typeof(m)){"LP9000", "PCI",
1702                                         "Fibre Channel Adapter"};
1703                 break;
1704         case PCI_DEVICE_ID_RFLY:
1705                 m = (typeof(m)){"LP952", "PCI",
1706                                 "Fibre Channel Adapter"};
1707                 break;
1708         case PCI_DEVICE_ID_PEGASUS:
1709                 m = (typeof(m)){"LP9802", "PCI-X",
1710                                 "Fibre Channel Adapter"};
1711                 break;
1712         case PCI_DEVICE_ID_THOR:
1713                 m = (typeof(m)){"LP10000", "PCI-X",
1714                                 "Fibre Channel Adapter"};
1715                 break;
1716         case PCI_DEVICE_ID_VIPER:
1717                 m = (typeof(m)){"LPX1000",  "PCI-X",
1718                                 "Fibre Channel Adapter"};
1719                 break;
1720         case PCI_DEVICE_ID_PFLY:
1721                 m = (typeof(m)){"LP982", "PCI-X",
1722                                 "Fibre Channel Adapter"};
1723                 break;
1724         case PCI_DEVICE_ID_TFLY:
1725                 m = (typeof(m)){"LP1050", "PCI-X",
1726                                 "Fibre Channel Adapter"};
1727                 break;
1728         case PCI_DEVICE_ID_HELIOS:
1729                 m = (typeof(m)){"LP11000", "PCI-X2",
1730                                 "Fibre Channel Adapter"};
1731                 break;
1732         case PCI_DEVICE_ID_HELIOS_SCSP:
1733                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1734                                 "Fibre Channel Adapter"};
1735                 break;
1736         case PCI_DEVICE_ID_HELIOS_DCSP:
1737                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1738                                 "Fibre Channel Adapter"};
1739                 break;
1740         case PCI_DEVICE_ID_NEPTUNE:
1741                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1742                 break;
1743         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1744                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1745                 break;
1746         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1747                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1748                 break;
1749         case PCI_DEVICE_ID_BMID:
1750                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1751                 break;
1752         case PCI_DEVICE_ID_BSMB:
1753                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1754                 break;
1755         case PCI_DEVICE_ID_ZEPHYR:
1756                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1757                 break;
1758         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1759                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1760                 break;
1761         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1762                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1763                 GE = 1;
1764                 break;
1765         case PCI_DEVICE_ID_ZMID:
1766                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1767                 break;
1768         case PCI_DEVICE_ID_ZSMB:
1769                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1770                 break;
1771         case PCI_DEVICE_ID_LP101:
1772                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1773                 break;
1774         case PCI_DEVICE_ID_LP10000S:
1775                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1776                 break;
1777         case PCI_DEVICE_ID_LP11000S:
1778                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1779                 break;
1780         case PCI_DEVICE_ID_LPE11000S:
1781                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1782                 break;
1783         case PCI_DEVICE_ID_SAT:
1784                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1785                 break;
1786         case PCI_DEVICE_ID_SAT_MID:
1787                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1788                 break;
1789         case PCI_DEVICE_ID_SAT_SMB:
1790                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1791                 break;
1792         case PCI_DEVICE_ID_SAT_DCSP:
1793                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1794                 break;
1795         case PCI_DEVICE_ID_SAT_SCSP:
1796                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1797                 break;
1798         case PCI_DEVICE_ID_SAT_S:
1799                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1800                 break;
1801         case PCI_DEVICE_ID_HORNET:
1802                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1803                 GE = 1;
1804                 break;
1805         case PCI_DEVICE_ID_PROTEUS_VF:
1806                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1807                                 "Fibre Channel Adapter"};
1808                 break;
1809         case PCI_DEVICE_ID_PROTEUS_PF:
1810                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1811                                 "Fibre Channel Adapter"};
1812                 break;
1813         case PCI_DEVICE_ID_PROTEUS_S:
1814                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1815                                 "Fibre Channel Adapter"};
1816                 break;
1817         case PCI_DEVICE_ID_TIGERSHARK:
1818                 oneConnect = 1;
1819                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1820                 break;
1821         case PCI_DEVICE_ID_TOMCAT:
1822                 oneConnect = 1;
1823                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1824                 break;
1825         case PCI_DEVICE_ID_FALCON:
1826                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1827                                 "EmulexSecure Fibre"};
1828                 break;
1829         case PCI_DEVICE_ID_BALIUS:
1830                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1831                                 "Fibre Channel Adapter"};
1832                 break;
1833         default:
1834                 m = (typeof(m)){"Unknown", "", ""};
1835                 break;
1836         }
1837
1838         if (mdp && mdp[0] == '\0')
1839                 snprintf(mdp, 79,"%s", m.name);
1840         /* oneConnect hba requires special processing, they are all initiators
1841          * and we put the port number on the end
1842          */
1843         if (descp && descp[0] == '\0') {
1844                 if (oneConnect)
1845                         snprintf(descp, 255,
1846                                 "Emulex OneConnect %s, %s Initiator, Port %s",
1847                                 m.name, m.function,
1848                                 phba->Port);
1849                 else
1850                         snprintf(descp, 255,
1851                                 "Emulex %s %d%s %s %s",
1852                                 m.name, max_speed, (GE) ? "GE" : "Gb",
1853                                 m.bus, m.function);
1854         }
1855 }
1856
1857 /**
1858  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1859  * @phba: pointer to lpfc hba data structure.
1860  * @pring: pointer to a IOCB ring.
1861  * @cnt: the number of IOCBs to be posted to the IOCB ring.
1862  *
1863  * This routine posts a given number of IOCBs with the associated DMA buffer
1864  * descriptors specified by the cnt argument to the given IOCB ring.
1865  *
1866  * Return codes
1867  *   The number of IOCBs NOT able to be posted to the IOCB ring.
1868  **/
1869 int
1870 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1871 {
1872         IOCB_t *icmd;
1873         struct lpfc_iocbq *iocb;
1874         struct lpfc_dmabuf *mp1, *mp2;
1875
1876         cnt += pring->missbufcnt;
1877
1878         /* While there are buffers to post */
1879         while (cnt > 0) {
1880                 /* Allocate buffer for  command iocb */
1881                 iocb = lpfc_sli_get_iocbq(phba);
1882                 if (iocb == NULL) {
1883                         pring->missbufcnt = cnt;
1884                         return cnt;
1885                 }
1886                 icmd = &iocb->iocb;
1887
1888                 /* 2 buffers can be posted per command */
1889                 /* Allocate buffer to post */
1890                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1891                 if (mp1)
1892                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1893                 if (!mp1 || !mp1->virt) {
1894                         kfree(mp1);
1895                         lpfc_sli_release_iocbq(phba, iocb);
1896                         pring->missbufcnt = cnt;
1897                         return cnt;
1898                 }
1899
1900                 INIT_LIST_HEAD(&mp1->list);
1901                 /* Allocate buffer to post */
1902                 if (cnt > 1) {
1903                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1904                         if (mp2)
1905                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1906                                                             &mp2->phys);
1907                         if (!mp2 || !mp2->virt) {
1908                                 kfree(mp2);
1909                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1910                                 kfree(mp1);
1911                                 lpfc_sli_release_iocbq(phba, iocb);
1912                                 pring->missbufcnt = cnt;
1913                                 return cnt;
1914                         }
1915
1916                         INIT_LIST_HEAD(&mp2->list);
1917                 } else {
1918                         mp2 = NULL;
1919                 }
1920
1921                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1922                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1923                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1924                 icmd->ulpBdeCount = 1;
1925                 cnt--;
1926                 if (mp2) {
1927                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1928                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1929                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1930                         cnt--;
1931                         icmd->ulpBdeCount = 2;
1932                 }
1933
1934                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1935                 icmd->ulpLe = 1;
1936
1937                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1938                     IOCB_ERROR) {
1939                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1940                         kfree(mp1);
1941                         cnt++;
1942                         if (mp2) {
1943                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1944                                 kfree(mp2);
1945                                 cnt++;
1946                         }
1947                         lpfc_sli_release_iocbq(phba, iocb);
1948                         pring->missbufcnt = cnt;
1949                         return cnt;
1950                 }
1951                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1952                 if (mp2)
1953                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1954         }
1955         pring->missbufcnt = 0;
1956         return 0;
1957 }
1958
1959 /**
1960  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1961  * @phba: pointer to lpfc hba data structure.
1962  *
1963  * This routine posts initial receive IOCB buffers to the ELS ring. The
1964  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1965  * set to 64 IOCBs.
1966  *
1967  * Return codes
1968  *   0 - success (currently always success)
1969  **/
1970 static int
1971 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1972 {
1973         struct lpfc_sli *psli = &phba->sli;
1974
1975         /* Ring 0, ELS / CT buffers */
1976         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
1977         /* Ring 2 - FCP no buffers needed */
1978
1979         return 0;
1980 }
1981
1982 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1983
1984 /**
1985  * lpfc_sha_init - Set up initial array of hash table entries
1986  * @HashResultPointer: pointer to an array as hash table.
1987  *
1988  * This routine sets up the initial values to the array of hash table entries
1989  * for the LC HBAs.
1990  **/
1991 static void
1992 lpfc_sha_init(uint32_t * HashResultPointer)
1993 {
1994         HashResultPointer[0] = 0x67452301;
1995         HashResultPointer[1] = 0xEFCDAB89;
1996         HashResultPointer[2] = 0x98BADCFE;
1997         HashResultPointer[3] = 0x10325476;
1998         HashResultPointer[4] = 0xC3D2E1F0;
1999 }
2000
2001 /**
2002  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2003  * @HashResultPointer: pointer to an initial/result hash table.
2004  * @HashWorkingPointer: pointer to an working hash table.
2005  *
2006  * This routine iterates an initial hash table pointed by @HashResultPointer
2007  * with the values from the working hash table pointeed by @HashWorkingPointer.
2008  * The results are putting back to the initial hash table, returned through
2009  * the @HashResultPointer as the result hash table.
2010  **/
2011 static void
2012 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2013 {
2014         int t;
2015         uint32_t TEMP;
2016         uint32_t A, B, C, D, E;
2017         t = 16;
2018         do {
2019                 HashWorkingPointer[t] =
2020                     S(1,
2021                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2022                                                                      8] ^
2023                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2024         } while (++t <= 79);
2025         t = 0;
2026         A = HashResultPointer[0];
2027         B = HashResultPointer[1];
2028         C = HashResultPointer[2];
2029         D = HashResultPointer[3];
2030         E = HashResultPointer[4];
2031
2032         do {
2033                 if (t < 20) {
2034                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2035                 } else if (t < 40) {
2036                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2037                 } else if (t < 60) {
2038                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2039                 } else {
2040                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2041                 }
2042                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2043                 E = D;
2044                 D = C;
2045                 C = S(30, B);
2046                 B = A;
2047                 A = TEMP;
2048         } while (++t <= 79);
2049
2050         HashResultPointer[0] += A;
2051         HashResultPointer[1] += B;
2052         HashResultPointer[2] += C;
2053         HashResultPointer[3] += D;
2054         HashResultPointer[4] += E;
2055
2056 }
2057
2058 /**
2059  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2060  * @RandomChallenge: pointer to the entry of host challenge random number array.
2061  * @HashWorking: pointer to the entry of the working hash array.
2062  *
2063  * This routine calculates the working hash array referred by @HashWorking
2064  * from the challenge random numbers associated with the host, referred by
2065  * @RandomChallenge. The result is put into the entry of the working hash
2066  * array and returned by reference through @HashWorking.
2067  **/
2068 static void
2069 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2070 {
2071         *HashWorking = (*RandomChallenge ^ *HashWorking);
2072 }
2073
2074 /**
2075  * lpfc_hba_init - Perform special handling for LC HBA initialization
2076  * @phba: pointer to lpfc hba data structure.
2077  * @hbainit: pointer to an array of unsigned 32-bit integers.
2078  *
2079  * This routine performs the special handling for LC HBA initialization.
2080  **/
2081 void
2082 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2083 {
2084         int t;
2085         uint32_t *HashWorking;
2086         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2087
2088         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2089         if (!HashWorking)
2090                 return;
2091
2092         HashWorking[0] = HashWorking[78] = *pwwnn++;
2093         HashWorking[1] = HashWorking[79] = *pwwnn;
2094
2095         for (t = 0; t < 7; t++)
2096                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2097
2098         lpfc_sha_init(hbainit);
2099         lpfc_sha_iterate(hbainit, HashWorking);
2100         kfree(HashWorking);
2101 }
2102
2103 /**
2104  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2105  * @vport: pointer to a virtual N_Port data structure.
2106  *
2107  * This routine performs the necessary cleanups before deleting the @vport.
2108  * It invokes the discovery state machine to perform necessary state
2109  * transitions and to release the ndlps associated with the @vport. Note,
2110  * the physical port is treated as @vport 0.
2111  **/
2112 void
2113 lpfc_cleanup(struct lpfc_vport *vport)
2114 {
2115         struct lpfc_hba   *phba = vport->phba;
2116         struct lpfc_nodelist *ndlp, *next_ndlp;
2117         int i = 0;
2118
2119         if (phba->link_state > LPFC_LINK_DOWN)
2120                 lpfc_port_link_failure(vport);
2121
2122         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2123                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2124                         ndlp = lpfc_enable_node(vport, ndlp,
2125                                                 NLP_STE_UNUSED_NODE);
2126                         if (!ndlp)
2127                                 continue;
2128                         spin_lock_irq(&phba->ndlp_lock);
2129                         NLP_SET_FREE_REQ(ndlp);
2130                         spin_unlock_irq(&phba->ndlp_lock);
2131                         /* Trigger the release of the ndlp memory */
2132                         lpfc_nlp_put(ndlp);
2133                         continue;
2134                 }
2135                 spin_lock_irq(&phba->ndlp_lock);
2136                 if (NLP_CHK_FREE_REQ(ndlp)) {
2137                         /* The ndlp should not be in memory free mode already */
2138                         spin_unlock_irq(&phba->ndlp_lock);
2139                         continue;
2140                 } else
2141                         /* Indicate request for freeing ndlp memory */
2142                         NLP_SET_FREE_REQ(ndlp);
2143                 spin_unlock_irq(&phba->ndlp_lock);
2144
2145                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2146                     ndlp->nlp_DID == Fabric_DID) {
2147                         /* Just free up ndlp with Fabric_DID for vports */
2148                         lpfc_nlp_put(ndlp);
2149                         continue;
2150                 }
2151
2152                 if (ndlp->nlp_type & NLP_FABRIC)
2153                         lpfc_disc_state_machine(vport, ndlp, NULL,
2154                                         NLP_EVT_DEVICE_RECOVERY);
2155
2156                 lpfc_disc_state_machine(vport, ndlp, NULL,
2157                                              NLP_EVT_DEVICE_RM);
2158
2159         }
2160
2161         /* At this point, ALL ndlp's should be gone
2162          * because of the previous NLP_EVT_DEVICE_RM.
2163          * Lets wait for this to happen, if needed.
2164          */
2165         while (!list_empty(&vport->fc_nodes)) {
2166                 if (i++ > 3000) {
2167                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2168                                 "0233 Nodelist not empty\n");
2169                         list_for_each_entry_safe(ndlp, next_ndlp,
2170                                                 &vport->fc_nodes, nlp_listp) {
2171                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2172                                                 LOG_NODE,
2173                                                 "0282 did:x%x ndlp:x%p "
2174                                                 "usgmap:x%x refcnt:%d\n",
2175                                                 ndlp->nlp_DID, (void *)ndlp,
2176                                                 ndlp->nlp_usg_map,
2177                                                 atomic_read(
2178                                                         &ndlp->kref.refcount));
2179                         }
2180                         break;
2181                 }
2182
2183                 /* Wait for any activity on ndlps to settle */
2184                 msleep(10);
2185         }
2186 }
2187
2188 /**
2189  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2190  * @vport: pointer to a virtual N_Port data structure.
2191  *
2192  * This routine stops all the timers associated with a @vport. This function
2193  * is invoked before disabling or deleting a @vport. Note that the physical
2194  * port is treated as @vport 0.
2195  **/
2196 void
2197 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2198 {
2199         del_timer_sync(&vport->els_tmofunc);
2200         del_timer_sync(&vport->fc_fdmitmo);
2201         lpfc_can_disctmo(vport);
2202         return;
2203 }
2204
2205 /**
2206  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2207  * @phba: pointer to lpfc hba data structure.
2208  *
2209  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2210  * caller of this routine should already hold the host lock.
2211  **/
2212 void
2213 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2214 {
2215         /* Clear pending FCF rediscovery wait and failover in progress flags */
2216         phba->fcf.fcf_flag &= ~(FCF_REDISC_PEND |
2217                                 FCF_DEAD_DISC |
2218                                 FCF_ACVL_DISC);
2219         /* Now, try to stop the timer */
2220         del_timer(&phba->fcf.redisc_wait);
2221 }
2222
2223 /**
2224  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2225  * @phba: pointer to lpfc hba data structure.
2226  *
2227  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2228  * checks whether the FCF rediscovery wait timer is pending with the host
2229  * lock held before proceeding with disabling the timer and clearing the
2230  * wait timer pendig flag.
2231  **/
2232 void
2233 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2234 {
2235         spin_lock_irq(&phba->hbalock);
2236         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2237                 /* FCF rediscovery timer already fired or stopped */
2238                 spin_unlock_irq(&phba->hbalock);
2239                 return;
2240         }
2241         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2242         spin_unlock_irq(&phba->hbalock);
2243 }
2244
2245 /**
2246  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2247  * @phba: pointer to lpfc hba data structure.
2248  *
2249  * This routine stops all the timers associated with a HBA. This function is
2250  * invoked before either putting a HBA offline or unloading the driver.
2251  **/
2252 void
2253 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2254 {
2255         lpfc_stop_vport_timers(phba->pport);
2256         del_timer_sync(&phba->sli.mbox_tmo);
2257         del_timer_sync(&phba->fabric_block_timer);
2258         del_timer_sync(&phba->eratt_poll);
2259         del_timer_sync(&phba->hb_tmofunc);
2260         phba->hb_outstanding = 0;
2261
2262         switch (phba->pci_dev_grp) {
2263         case LPFC_PCI_DEV_LP:
2264                 /* Stop any LightPulse device specific driver timers */
2265                 del_timer_sync(&phba->fcp_poll_timer);
2266                 break;
2267         case LPFC_PCI_DEV_OC:
2268                 /* Stop any OneConnect device sepcific driver timers */
2269                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2270                 break;
2271         default:
2272                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2273                                 "0297 Invalid device group (x%x)\n",
2274                                 phba->pci_dev_grp);
2275                 break;
2276         }
2277         return;
2278 }
2279
2280 /**
2281  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2282  * @phba: pointer to lpfc hba data structure.
2283  *
2284  * This routine marks a HBA's management interface as blocked. Once the HBA's
2285  * management interface is marked as blocked, all the user space access to
2286  * the HBA, whether they are from sysfs interface or libdfc interface will
2287  * all be blocked. The HBA is set to block the management interface when the
2288  * driver prepares the HBA interface for online or offline.
2289  **/
2290 static void
2291 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2292 {
2293         unsigned long iflag;
2294         uint8_t actcmd = MBX_HEARTBEAT;
2295         unsigned long timeout;
2296
2297
2298         spin_lock_irqsave(&phba->hbalock, iflag);
2299         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2300         if (phba->sli.mbox_active)
2301                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2302         spin_unlock_irqrestore(&phba->hbalock, iflag);
2303         /* Determine how long we might wait for the active mailbox
2304          * command to be gracefully completed by firmware.
2305          */
2306         timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2307                         jiffies;
2308         /* Wait for the outstnading mailbox command to complete */
2309         while (phba->sli.mbox_active) {
2310                 /* Check active mailbox complete status every 2ms */
2311                 msleep(2);
2312                 if (time_after(jiffies, timeout)) {
2313                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2314                                 "2813 Mgmt IO is Blocked %x "
2315                                 "- mbox cmd %x still active\n",
2316                                 phba->sli.sli_flag, actcmd);
2317                         break;
2318                 }
2319         }
2320 }
2321
2322 /**
2323  * lpfc_online - Initialize and bring a HBA online
2324  * @phba: pointer to lpfc hba data structure.
2325  *
2326  * This routine initializes the HBA and brings a HBA online. During this
2327  * process, the management interface is blocked to prevent user space access
2328  * to the HBA interfering with the driver initialization.
2329  *
2330  * Return codes
2331  *   0 - successful
2332  *   1 - failed
2333  **/
2334 int
2335 lpfc_online(struct lpfc_hba *phba)
2336 {
2337         struct lpfc_vport *vport;
2338         struct lpfc_vport **vports;
2339         int i;
2340
2341         if (!phba)
2342                 return 0;
2343         vport = phba->pport;
2344
2345         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2346                 return 0;
2347
2348         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2349                         "0458 Bring Adapter online\n");
2350
2351         lpfc_block_mgmt_io(phba);
2352
2353         if (!lpfc_sli_queue_setup(phba)) {
2354                 lpfc_unblock_mgmt_io(phba);
2355                 return 1;
2356         }
2357
2358         if (phba->sli_rev == LPFC_SLI_REV4) {
2359                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2360                         lpfc_unblock_mgmt_io(phba);
2361                         return 1;
2362                 }
2363         } else {
2364                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2365                         lpfc_unblock_mgmt_io(phba);
2366                         return 1;
2367                 }
2368         }
2369
2370         vports = lpfc_create_vport_work_array(phba);
2371         if (vports != NULL)
2372                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2373                         struct Scsi_Host *shost;
2374                         shost = lpfc_shost_from_vport(vports[i]);
2375                         spin_lock_irq(shost->host_lock);
2376                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2377                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2378                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2379                         if (phba->sli_rev == LPFC_SLI_REV4)
2380                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2381                         spin_unlock_irq(shost->host_lock);
2382                 }
2383                 lpfc_destroy_vport_work_array(phba, vports);
2384
2385         lpfc_unblock_mgmt_io(phba);
2386         return 0;
2387 }
2388
2389 /**
2390  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2391  * @phba: pointer to lpfc hba data structure.
2392  *
2393  * This routine marks a HBA's management interface as not blocked. Once the
2394  * HBA's management interface is marked as not blocked, all the user space
2395  * access to the HBA, whether they are from sysfs interface or libdfc
2396  * interface will be allowed. The HBA is set to block the management interface
2397  * when the driver prepares the HBA interface for online or offline and then
2398  * set to unblock the management interface afterwards.
2399  **/
2400 void
2401 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2402 {
2403         unsigned long iflag;
2404
2405         spin_lock_irqsave(&phba->hbalock, iflag);
2406         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2407         spin_unlock_irqrestore(&phba->hbalock, iflag);
2408 }
2409
2410 /**
2411  * lpfc_offline_prep - Prepare a HBA to be brought offline
2412  * @phba: pointer to lpfc hba data structure.
2413  *
2414  * This routine is invoked to prepare a HBA to be brought offline. It performs
2415  * unregistration login to all the nodes on all vports and flushes the mailbox
2416  * queue to make it ready to be brought offline.
2417  **/
2418 void
2419 lpfc_offline_prep(struct lpfc_hba * phba)
2420 {
2421         struct lpfc_vport *vport = phba->pport;
2422         struct lpfc_nodelist  *ndlp, *next_ndlp;
2423         struct lpfc_vport **vports;
2424         struct Scsi_Host *shost;
2425         int i;
2426
2427         if (vport->fc_flag & FC_OFFLINE_MODE)
2428                 return;
2429
2430         lpfc_block_mgmt_io(phba);
2431
2432         lpfc_linkdown(phba);
2433
2434         /* Issue an unreg_login to all nodes on all vports */
2435         vports = lpfc_create_vport_work_array(phba);
2436         if (vports != NULL) {
2437                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2438                         if (vports[i]->load_flag & FC_UNLOADING)
2439                                 continue;
2440                         shost = lpfc_shost_from_vport(vports[i]);
2441                         spin_lock_irq(shost->host_lock);
2442                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2443                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2444                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2445                         spin_unlock_irq(shost->host_lock);
2446
2447                         shost = lpfc_shost_from_vport(vports[i]);
2448                         list_for_each_entry_safe(ndlp, next_ndlp,
2449                                                  &vports[i]->fc_nodes,
2450                                                  nlp_listp) {
2451                                 if (!NLP_CHK_NODE_ACT(ndlp))
2452                                         continue;
2453                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2454                                         continue;
2455                                 if (ndlp->nlp_type & NLP_FABRIC) {
2456                                         lpfc_disc_state_machine(vports[i], ndlp,
2457                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2458                                         lpfc_disc_state_machine(vports[i], ndlp,
2459                                                 NULL, NLP_EVT_DEVICE_RM);
2460                                 }
2461                                 spin_lock_irq(shost->host_lock);
2462                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2463                                 spin_unlock_irq(shost->host_lock);
2464                                 lpfc_unreg_rpi(vports[i], ndlp);
2465                         }
2466                 }
2467         }
2468         lpfc_destroy_vport_work_array(phba, vports);
2469
2470         lpfc_sli_mbox_sys_shutdown(phba);
2471 }
2472
2473 /**
2474  * lpfc_offline - Bring a HBA offline
2475  * @phba: pointer to lpfc hba data structure.
2476  *
2477  * This routine actually brings a HBA offline. It stops all the timers
2478  * associated with the HBA, brings down the SLI layer, and eventually
2479  * marks the HBA as in offline state for the upper layer protocol.
2480  **/
2481 void
2482 lpfc_offline(struct lpfc_hba *phba)
2483 {
2484         struct Scsi_Host  *shost;
2485         struct lpfc_vport **vports;
2486         int i;
2487
2488         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2489                 return;
2490
2491         /* stop port and all timers associated with this hba */
2492         lpfc_stop_port(phba);
2493         vports = lpfc_create_vport_work_array(phba);
2494         if (vports != NULL)
2495                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2496                         lpfc_stop_vport_timers(vports[i]);
2497         lpfc_destroy_vport_work_array(phba, vports);
2498         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2499                         "0460 Bring Adapter offline\n");
2500         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2501            now.  */
2502         lpfc_sli_hba_down(phba);
2503         spin_lock_irq(&phba->hbalock);
2504         phba->work_ha = 0;
2505         spin_unlock_irq(&phba->hbalock);
2506         vports = lpfc_create_vport_work_array(phba);
2507         if (vports != NULL)
2508                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2509                         shost = lpfc_shost_from_vport(vports[i]);
2510                         spin_lock_irq(shost->host_lock);
2511                         vports[i]->work_port_events = 0;
2512                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2513                         spin_unlock_irq(shost->host_lock);
2514                 }
2515         lpfc_destroy_vport_work_array(phba, vports);
2516 }
2517
2518 /**
2519  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2520  * @phba: pointer to lpfc hba data structure.
2521  *
2522  * This routine is to free all the SCSI buffers and IOCBs from the driver
2523  * list back to kernel. It is called from lpfc_pci_remove_one to free
2524  * the internal resources before the device is removed from the system.
2525  *
2526  * Return codes
2527  *   0 - successful (for now, it always returns 0)
2528  **/
2529 static int
2530 lpfc_scsi_free(struct lpfc_hba *phba)
2531 {
2532         struct lpfc_scsi_buf *sb, *sb_next;
2533         struct lpfc_iocbq *io, *io_next;
2534
2535         spin_lock_irq(&phba->hbalock);
2536         /* Release all the lpfc_scsi_bufs maintained by this host. */
2537         spin_lock(&phba->scsi_buf_list_lock);
2538         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2539                 list_del(&sb->list);
2540                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2541                               sb->dma_handle);
2542                 kfree(sb);
2543                 phba->total_scsi_bufs--;
2544         }
2545         spin_unlock(&phba->scsi_buf_list_lock);
2546
2547         /* Release all the lpfc_iocbq entries maintained by this host. */
2548         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2549                 list_del(&io->list);
2550                 kfree(io);
2551                 phba->total_iocbq_bufs--;
2552         }
2553         spin_unlock_irq(&phba->hbalock);
2554         return 0;
2555 }
2556
2557 /**
2558  * lpfc_create_port - Create an FC port
2559  * @phba: pointer to lpfc hba data structure.
2560  * @instance: a unique integer ID to this FC port.
2561  * @dev: pointer to the device data structure.
2562  *
2563  * This routine creates a FC port for the upper layer protocol. The FC port
2564  * can be created on top of either a physical port or a virtual port provided
2565  * by the HBA. This routine also allocates a SCSI host data structure (shost)
2566  * and associates the FC port created before adding the shost into the SCSI
2567  * layer.
2568  *
2569  * Return codes
2570  *   @vport - pointer to the virtual N_Port data structure.
2571  *   NULL - port create failed.
2572  **/
2573 struct lpfc_vport *
2574 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2575 {
2576         struct lpfc_vport *vport;
2577         struct Scsi_Host  *shost;
2578         int error = 0;
2579
2580         if (dev != &phba->pcidev->dev)
2581                 shost = scsi_host_alloc(&lpfc_vport_template,
2582                                         sizeof(struct lpfc_vport));
2583         else
2584                 shost = scsi_host_alloc(&lpfc_template,
2585                                         sizeof(struct lpfc_vport));
2586         if (!shost)
2587                 goto out;
2588
2589         vport = (struct lpfc_vport *) shost->hostdata;
2590         vport->phba = phba;
2591         vport->load_flag |= FC_LOADING;
2592         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2593         vport->fc_rscn_flush = 0;
2594
2595         lpfc_get_vport_cfgparam(vport);
2596         shost->unique_id = instance;
2597         shost->max_id = LPFC_MAX_TARGET;
2598         shost->max_lun = vport->cfg_max_luns;
2599         shost->this_id = -1;
2600         shost->max_cmd_len = 16;
2601         if (phba->sli_rev == LPFC_SLI_REV4) {
2602                 shost->dma_boundary =
2603                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2604                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2605         }
2606
2607         /*
2608          * Set initial can_queue value since 0 is no longer supported and
2609          * scsi_add_host will fail. This will be adjusted later based on the
2610          * max xri value determined in hba setup.
2611          */
2612         shost->can_queue = phba->cfg_hba_queue_depth - 10;
2613         if (dev != &phba->pcidev->dev) {
2614                 shost->transportt = lpfc_vport_transport_template;
2615                 vport->port_type = LPFC_NPIV_PORT;
2616         } else {
2617                 shost->transportt = lpfc_transport_template;
2618                 vport->port_type = LPFC_PHYSICAL_PORT;
2619         }
2620
2621         /* Initialize all internally managed lists. */
2622         INIT_LIST_HEAD(&vport->fc_nodes);
2623         INIT_LIST_HEAD(&vport->rcv_buffer_list);
2624         spin_lock_init(&vport->work_port_lock);
2625
2626         init_timer(&vport->fc_disctmo);
2627         vport->fc_disctmo.function = lpfc_disc_timeout;
2628         vport->fc_disctmo.data = (unsigned long)vport;
2629
2630         init_timer(&vport->fc_fdmitmo);
2631         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2632         vport->fc_fdmitmo.data = (unsigned long)vport;
2633
2634         init_timer(&vport->els_tmofunc);
2635         vport->els_tmofunc.function = lpfc_els_timeout;
2636         vport->els_tmofunc.data = (unsigned long)vport;
2637         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2638         if (error)
2639                 goto out_put_shost;
2640
2641         spin_lock_irq(&phba->hbalock);
2642         list_add_tail(&vport->listentry, &phba->port_list);
2643         spin_unlock_irq(&phba->hbalock);
2644         return vport;
2645
2646 out_put_shost:
2647         scsi_host_put(shost);
2648 out:
2649         return NULL;
2650 }
2651
2652 /**
2653  * destroy_port -  destroy an FC port
2654  * @vport: pointer to an lpfc virtual N_Port data structure.
2655  *
2656  * This routine destroys a FC port from the upper layer protocol. All the
2657  * resources associated with the port are released.
2658  **/
2659 void
2660 destroy_port(struct lpfc_vport *vport)
2661 {
2662         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2663         struct lpfc_hba  *phba = vport->phba;
2664
2665         lpfc_debugfs_terminate(vport);
2666         fc_remove_host(shost);
2667         scsi_remove_host(shost);
2668
2669         spin_lock_irq(&phba->hbalock);
2670         list_del_init(&vport->listentry);
2671         spin_unlock_irq(&phba->hbalock);
2672
2673         lpfc_cleanup(vport);
2674         return;
2675 }
2676
2677 /**
2678  * lpfc_get_instance - Get a unique integer ID
2679  *
2680  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2681  * uses the kernel idr facility to perform the task.
2682  *
2683  * Return codes:
2684  *   instance - a unique integer ID allocated as the new instance.
2685  *   -1 - lpfc get instance failed.
2686  **/
2687 int
2688 lpfc_get_instance(void)
2689 {
2690         int instance = 0;
2691
2692         /* Assign an unused number */
2693         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2694                 return -1;
2695         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2696                 return -1;
2697         return instance;
2698 }
2699
2700 /**
2701  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2702  * @shost: pointer to SCSI host data structure.
2703  * @time: elapsed time of the scan in jiffies.
2704  *
2705  * This routine is called by the SCSI layer with a SCSI host to determine
2706  * whether the scan host is finished.
2707  *
2708  * Note: there is no scan_start function as adapter initialization will have
2709  * asynchronously kicked off the link initialization.
2710  *
2711  * Return codes
2712  *   0 - SCSI host scan is not over yet.
2713  *   1 - SCSI host scan is over.
2714  **/
2715 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2716 {
2717         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2718         struct lpfc_hba   *phba = vport->phba;
2719         int stat = 0;
2720
2721         spin_lock_irq(shost->host_lock);
2722
2723         if (vport->load_flag & FC_UNLOADING) {
2724                 stat = 1;
2725                 goto finished;
2726         }
2727         if (time >= 30 * HZ) {
2728                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2729                                 "0461 Scanning longer than 30 "
2730                                 "seconds.  Continuing initialization\n");
2731                 stat = 1;
2732                 goto finished;
2733         }
2734         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2735                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2736                                 "0465 Link down longer than 15 "
2737                                 "seconds.  Continuing initialization\n");
2738                 stat = 1;
2739                 goto finished;
2740         }
2741
2742         if (vport->port_state != LPFC_VPORT_READY)
2743                 goto finished;
2744         if (vport->num_disc_nodes || vport->fc_prli_sent)
2745                 goto finished;
2746         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2747                 goto finished;
2748         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2749                 goto finished;
2750
2751         stat = 1;
2752
2753 finished:
2754         spin_unlock_irq(shost->host_lock);
2755         return stat;
2756 }
2757
2758 /**
2759  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2760  * @shost: pointer to SCSI host data structure.
2761  *
2762  * This routine initializes a given SCSI host attributes on a FC port. The
2763  * SCSI host can be either on top of a physical port or a virtual port.
2764  **/
2765 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2766 {
2767         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2768         struct lpfc_hba   *phba = vport->phba;
2769         /*
2770          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2771          */
2772
2773         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2774         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2775         fc_host_supported_classes(shost) = FC_COS_CLASS3;
2776
2777         memset(fc_host_supported_fc4s(shost), 0,
2778                sizeof(fc_host_supported_fc4s(shost)));
2779         fc_host_supported_fc4s(shost)[2] = 1;
2780         fc_host_supported_fc4s(shost)[7] = 1;
2781
2782         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2783                                  sizeof fc_host_symbolic_name(shost));
2784
2785         fc_host_supported_speeds(shost) = 0;
2786         if (phba->lmt & LMT_10Gb)
2787                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2788         if (phba->lmt & LMT_8Gb)
2789                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2790         if (phba->lmt & LMT_4Gb)
2791                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2792         if (phba->lmt & LMT_2Gb)
2793                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2794         if (phba->lmt & LMT_1Gb)
2795                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2796
2797         fc_host_maxframe_size(shost) =
2798                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2799                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2800
2801         /* This value is also unchanging */
2802         memset(fc_host_active_fc4s(shost), 0,
2803                sizeof(fc_host_active_fc4s(shost)));
2804         fc_host_active_fc4s(shost)[2] = 1;
2805         fc_host_active_fc4s(shost)[7] = 1;
2806
2807         fc_host_max_npiv_vports(shost) = phba->max_vpi;
2808         spin_lock_irq(shost->host_lock);
2809         vport->load_flag &= ~FC_LOADING;
2810         spin_unlock_irq(shost->host_lock);
2811 }
2812
2813 /**
2814  * lpfc_stop_port_s3 - Stop SLI3 device port
2815  * @phba: pointer to lpfc hba data structure.
2816  *
2817  * This routine is invoked to stop an SLI3 device port, it stops the device
2818  * from generating interrupts and stops the device driver's timers for the
2819  * device.
2820  **/
2821 static void
2822 lpfc_stop_port_s3(struct lpfc_hba *phba)
2823 {
2824         /* Clear all interrupt enable conditions */
2825         writel(0, phba->HCregaddr);
2826         readl(phba->HCregaddr); /* flush */
2827         /* Clear all pending interrupts */
2828         writel(0xffffffff, phba->HAregaddr);
2829         readl(phba->HAregaddr); /* flush */
2830
2831         /* Reset some HBA SLI setup states */
2832         lpfc_stop_hba_timers(phba);
2833         phba->pport->work_port_events = 0;
2834 }
2835
2836 /**
2837  * lpfc_stop_port_s4 - Stop SLI4 device port
2838  * @phba: pointer to lpfc hba data structure.
2839  *
2840  * This routine is invoked to stop an SLI4 device port, it stops the device
2841  * from generating interrupts and stops the device driver's timers for the
2842  * device.
2843  **/
2844 static void
2845 lpfc_stop_port_s4(struct lpfc_hba *phba)
2846 {
2847         /* Reset some HBA SLI4 setup states */
2848         lpfc_stop_hba_timers(phba);
2849         phba->pport->work_port_events = 0;
2850         phba->sli4_hba.intr_enable = 0;
2851 }
2852
2853 /**
2854  * lpfc_stop_port - Wrapper function for stopping hba port
2855  * @phba: Pointer to HBA context object.
2856  *
2857  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2858  * the API jump table function pointer from the lpfc_hba struct.
2859  **/
2860 void
2861 lpfc_stop_port(struct lpfc_hba *phba)
2862 {
2863         phba->lpfc_stop_port(phba);
2864 }
2865
2866 /**
2867  * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
2868  * @phba: pointer to lpfc hba data structure.
2869  *
2870  * This routine is invoked to remove the driver default fcf record from
2871  * the port.  This routine currently acts on FCF Index 0.
2872  *
2873  **/
2874 void
2875 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
2876 {
2877         int rc = 0;
2878         LPFC_MBOXQ_t *mboxq;
2879         struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record;
2880         uint32_t mbox_tmo, req_len;
2881         uint32_t shdr_status, shdr_add_status;
2882
2883         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2884         if (!mboxq) {
2885                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2886                         "2020 Failed to allocate mbox for ADD_FCF cmd\n");
2887                 return;
2888         }
2889
2890         req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) -
2891                   sizeof(struct lpfc_sli4_cfg_mhdr);
2892         rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2893                               LPFC_MBOX_OPCODE_FCOE_DELETE_FCF,
2894                               req_len, LPFC_SLI4_MBX_EMBED);
2895         /*
2896          * In phase 1, there is a single FCF index, 0.  In phase2, the driver
2897          * supports multiple FCF indices.
2898          */
2899         del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry;
2900         bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1);
2901         bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record,
2902                phba->fcf.current_rec.fcf_indx);
2903
2904         if (!phba->sli4_hba.intr_enable)
2905                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2906         else {
2907                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
2908                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
2909         }
2910         /* The IOCTL status is embedded in the mailbox subheader. */
2911         shdr_status = bf_get(lpfc_mbox_hdr_status,
2912                              &del_fcf_record->header.cfg_shdr.response);
2913         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2914                                  &del_fcf_record->header.cfg_shdr.response);
2915         if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2916                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2917                                 "2516 DEL FCF of default FCF Index failed "
2918                                 "mbx status x%x, status x%x add_status x%x\n",
2919                                 rc, shdr_status, shdr_add_status);
2920         }
2921         if (rc != MBX_TIMEOUT)
2922                 mempool_free(mboxq, phba->mbox_mem_pool);
2923 }
2924
2925 /**
2926  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2927  * @phba: Pointer to hba for which this call is being executed.
2928  *
2929  * This routine starts the timer waiting for the FCF rediscovery to complete.
2930  **/
2931 void
2932 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2933 {
2934         unsigned long fcf_redisc_wait_tmo =
2935                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2936         /* Start fcf rediscovery wait period timer */
2937         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2938         spin_lock_irq(&phba->hbalock);
2939         /* Allow action to new fcf asynchronous event */
2940         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2941         /* Mark the FCF rediscovery pending state */
2942         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2943         spin_unlock_irq(&phba->hbalock);
2944 }
2945
2946 /**
2947  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2948  * @ptr: Map to lpfc_hba data structure pointer.
2949  *
2950  * This routine is invoked when waiting for FCF table rediscover has been
2951  * timed out. If new FCF record(s) has (have) been discovered during the
2952  * wait period, a new FCF event shall be added to the FCOE async event
2953  * list, and then worker thread shall be waked up for processing from the
2954  * worker thread context.
2955  **/
2956 void
2957 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
2958 {
2959         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2960
2961         /* Don't send FCF rediscovery event if timer cancelled */
2962         spin_lock_irq(&phba->hbalock);
2963         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2964                 spin_unlock_irq(&phba->hbalock);
2965                 return;
2966         }
2967         /* Clear FCF rediscovery timer pending flag */
2968         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2969         /* FCF rediscovery event to worker thread */
2970         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
2971         spin_unlock_irq(&phba->hbalock);
2972         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2973                         "2776 FCF rediscover wait timer expired, post "
2974                         "a worker thread event for FCF table scan\n");
2975         /* wake up worker thread */
2976         lpfc_worker_wake_up(phba);
2977 }
2978
2979 /**
2980  * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2981  * @phba: pointer to lpfc hba data structure.
2982  *
2983  * This function uses the QUERY_FW_CFG mailbox command to determine if the
2984  * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2985  * was successful and the firmware supports FCoE. Any other return indicates
2986  * a error. It is assumed that this function will be called before interrupts
2987  * are enabled.
2988  **/
2989 static int
2990 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba)
2991 {
2992         int rc = 0;
2993         LPFC_MBOXQ_t *mboxq;
2994         struct lpfc_mbx_query_fw_cfg *query_fw_cfg;
2995         uint32_t length;
2996         uint32_t shdr_status, shdr_add_status;
2997
2998         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2999         if (!mboxq) {
3000                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3001                                 "2621 Failed to allocate mbox for "
3002                                 "query firmware config cmd\n");
3003                 return -ENOMEM;
3004         }
3005         query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg;
3006         length = (sizeof(struct lpfc_mbx_query_fw_cfg) -
3007                   sizeof(struct lpfc_sli4_cfg_mhdr));
3008         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
3009                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
3010                          length, LPFC_SLI4_MBX_EMBED);
3011         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
3012         /* The IOCTL status is embedded in the mailbox subheader. */
3013         shdr_status = bf_get(lpfc_mbox_hdr_status,
3014                              &query_fw_cfg->header.cfg_shdr.response);
3015         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
3016                                  &query_fw_cfg->header.cfg_shdr.response);
3017         if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
3018                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3019                                 "2622 Query Firmware Config failed "
3020                                 "mbx status x%x, status x%x add_status x%x\n",
3021                                 rc, shdr_status, shdr_add_status);
3022                 return -EINVAL;
3023         }
3024         if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) {
3025                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3026                                 "2623 FCoE Function not supported by firmware. "
3027                                 "Function mode = %08x\n",
3028                                 query_fw_cfg->function_mode);
3029                 return -EINVAL;
3030         }
3031         if (rc != MBX_TIMEOUT)
3032                 mempool_free(mboxq, phba->mbox_mem_pool);
3033         return 0;
3034 }
3035
3036 /**
3037  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3038  * @phba: pointer to lpfc hba data structure.
3039  * @acqe_link: pointer to the async link completion queue entry.
3040  *
3041  * This routine is to parse the SLI4 link-attention link fault code and
3042  * translate it into the base driver's read link attention mailbox command
3043  * status.
3044  *
3045  * Return: Link-attention status in terms of base driver's coding.
3046  **/
3047 static uint16_t
3048 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3049                            struct lpfc_acqe_link *acqe_link)
3050 {
3051         uint16_t latt_fault;
3052
3053         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3054         case LPFC_ASYNC_LINK_FAULT_NONE:
3055         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3056         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3057                 latt_fault = 0;
3058                 break;
3059         default:
3060                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3061                                 "0398 Invalid link fault code: x%x\n",
3062                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3063                 latt_fault = MBXERR_ERROR;
3064                 break;
3065         }
3066         return latt_fault;
3067 }
3068
3069 /**
3070  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3071  * @phba: pointer to lpfc hba data structure.
3072  * @acqe_link: pointer to the async link completion queue entry.
3073  *
3074  * This routine is to parse the SLI4 link attention type and translate it
3075  * into the base driver's link attention type coding.
3076  *
3077  * Return: Link attention type in terms of base driver's coding.
3078  **/
3079 static uint8_t
3080 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3081                           struct lpfc_acqe_link *acqe_link)
3082 {
3083         uint8_t att_type;
3084
3085         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3086         case LPFC_ASYNC_LINK_STATUS_DOWN:
3087         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3088                 att_type = AT_LINK_DOWN;
3089                 break;
3090         case LPFC_ASYNC_LINK_STATUS_UP:
3091                 /* Ignore physical link up events - wait for logical link up */
3092                 att_type = AT_RESERVED;
3093                 break;
3094         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3095                 att_type = AT_LINK_UP;
3096                 break;
3097         default:
3098                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3099                                 "0399 Invalid link attention type: x%x\n",
3100                                 bf_get(lpfc_acqe_link_status, acqe_link));
3101                 att_type = AT_RESERVED;
3102                 break;
3103         }
3104         return att_type;
3105 }
3106
3107 /**
3108  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3109  * @phba: pointer to lpfc hba data structure.
3110  * @acqe_link: pointer to the async link completion queue entry.
3111  *
3112  * This routine is to parse the SLI4 link-attention link speed and translate
3113  * it into the base driver's link-attention link speed coding.
3114  *
3115  * Return: Link-attention link speed in terms of base driver's coding.
3116  **/
3117 static uint8_t
3118 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3119                                 struct lpfc_acqe_link *acqe_link)
3120 {
3121         uint8_t link_speed;
3122
3123         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3124         case LPFC_ASYNC_LINK_SPEED_ZERO:
3125                 link_speed = LA_UNKNW_LINK;
3126                 break;
3127         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3128                 link_speed = LA_UNKNW_LINK;
3129                 break;
3130         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3131                 link_speed = LA_UNKNW_LINK;
3132                 break;
3133         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3134                 link_speed = LA_1GHZ_LINK;
3135                 break;
3136         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3137                 link_speed = LA_10GHZ_LINK;
3138                 break;
3139         default:
3140                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3141                                 "0483 Invalid link-attention link speed: x%x\n",
3142                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3143                 link_speed = LA_UNKNW_LINK;
3144                 break;
3145         }
3146         return link_speed;
3147 }
3148
3149 /**
3150  * lpfc_sli4_async_link_evt - Process the asynchronous link event
3151  * @phba: pointer to lpfc hba data structure.
3152  * @acqe_link: pointer to the async link completion queue entry.
3153  *
3154  * This routine is to handle the SLI4 asynchronous link event.
3155  **/
3156 static void
3157 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3158                          struct lpfc_acqe_link *acqe_link)
3159 {
3160         struct lpfc_dmabuf *mp;
3161         LPFC_MBOXQ_t *pmb;
3162         MAILBOX_t *mb;
3163         READ_LA_VAR *la;
3164         uint8_t att_type;
3165
3166         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3167         if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
3168                 return;
3169         phba->fcoe_eventtag = acqe_link->event_tag;
3170         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3171         if (!pmb) {
3172                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3173                                 "0395 The mboxq allocation failed\n");
3174                 return;
3175         }
3176         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3177         if (!mp) {
3178                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3179                                 "0396 The lpfc_dmabuf allocation failed\n");
3180                 goto out_free_pmb;
3181         }
3182         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3183         if (!mp->virt) {
3184                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3185                                 "0397 The mbuf allocation failed\n");
3186                 goto out_free_dmabuf;
3187         }
3188
3189         /* Cleanup any outstanding ELS commands */
3190         lpfc_els_flush_all_cmd(phba);
3191
3192         /* Block ELS IOCBs until we have done process link event */
3193         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3194
3195         /* Update link event statistics */
3196         phba->sli.slistat.link_event++;
3197
3198         /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3199         lpfc_read_la(phba, pmb, mp);
3200         pmb->vport = phba->pport;
3201
3202         /* Parse and translate status field */
3203         mb = &pmb->u.mb;
3204         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3205
3206         /* Parse and translate link attention fields */
3207         la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
3208         la->eventTag = acqe_link->event_tag;
3209         la->attType = att_type;
3210         la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
3211
3212         /* Fake the the following irrelvant fields */
3213         la->topology = TOPOLOGY_PT_PT;
3214         la->granted_AL_PA = 0;
3215         la->il = 0;
3216         la->pb = 0;
3217         la->fa = 0;
3218         la->mm = 0;
3219
3220         /* Keep the link status for extra SLI4 state machine reference */
3221         phba->sli4_hba.link_state.speed =
3222                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3223         phba->sli4_hba.link_state.duplex =
3224                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3225         phba->sli4_hba.link_state.status =
3226                                 bf_get(lpfc_acqe_link_status, acqe_link);
3227         phba->sli4_hba.link_state.physical =
3228                                 bf_get(lpfc_acqe_link_physical, acqe_link);
3229         phba->sli4_hba.link_state.fault =
3230                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3231         phba->sli4_hba.link_state.logical_speed =
3232                                 bf_get(lpfc_acqe_qos_link_speed, acqe_link);
3233
3234         /* Invoke the lpfc_handle_latt mailbox command callback function */
3235         lpfc_mbx_cmpl_read_la(phba, pmb);
3236
3237         return;
3238
3239 out_free_dmabuf:
3240         kfree(mp);
3241 out_free_pmb:
3242         mempool_free(pmb, phba->mbox_mem_pool);
3243 }
3244
3245 /**
3246  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3247  * @vport: pointer to vport data structure.
3248  *
3249  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3250  * response to a CVL event.
3251  *
3252  * Return the pointer to the ndlp with the vport if successful, otherwise
3253  * return NULL.
3254  **/
3255 static struct lpfc_nodelist *
3256 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3257 {
3258         struct lpfc_nodelist *ndlp;
3259         struct Scsi_Host *shost;
3260         struct lpfc_hba *phba;
3261
3262         if (!vport)
3263                 return NULL;
3264         phba = vport->phba;
3265         if (!phba)
3266                 return NULL;
3267         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3268         if (!ndlp) {
3269                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3270                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3271                 if (!ndlp)
3272                         return 0;
3273                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3274                 /* Set the node type */
3275                 ndlp->nlp_type |= NLP_FABRIC;
3276                 /* Put ndlp onto node list */
3277                 lpfc_enqueue_node(vport, ndlp);
3278         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3279                 /* re-setup ndlp without removing from node list */
3280                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3281                 if (!ndlp)
3282                         return 0;
3283         }
3284         if (phba->pport->port_state <= LPFC_FLOGI)
3285                 return NULL;
3286         /* If virtual link is not yet instantiated ignore CVL */
3287         if (vport->port_state <= LPFC_FDISC)
3288                 return NULL;
3289         shost = lpfc_shost_from_vport(vport);
3290         if (!shost)
3291                 return NULL;
3292         lpfc_linkdown_port(vport);
3293         lpfc_cleanup_pending_mbox(vport);
3294         spin_lock_irq(shost->host_lock);
3295         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3296         spin_unlock_irq(shost->host_lock);
3297
3298         return ndlp;
3299 }
3300
3301 /**
3302  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3303  * @vport: pointer to lpfc hba data structure.
3304  *
3305  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3306  * response to a FCF dead event.
3307  **/
3308 static void
3309 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3310 {
3311         struct lpfc_vport **vports;
3312         int i;
3313
3314         vports = lpfc_create_vport_work_array(phba);
3315         if (vports)
3316                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3317                         lpfc_sli4_perform_vport_cvl(vports[i]);
3318         lpfc_destroy_vport_work_array(phba, vports);
3319 }
3320
3321 /**
3322  * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3323  * @phba: pointer to lpfc hba data structure.
3324  * @acqe_link: pointer to the async fcoe completion queue entry.
3325  *
3326  * This routine is to handle the SLI4 asynchronous fcoe event.
3327  **/
3328 static void
3329 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
3330                          struct lpfc_acqe_fcoe *acqe_fcoe)
3331 {
3332         uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
3333         int rc;
3334         struct lpfc_vport *vport;
3335         struct lpfc_nodelist *ndlp;
3336         struct Scsi_Host  *shost;
3337         int active_vlink_present;
3338         struct lpfc_vport **vports;
3339         int i;
3340
3341         phba->fc_eventTag = acqe_fcoe->event_tag;
3342         phba->fcoe_eventtag = acqe_fcoe->event_tag;
3343         switch (event_type) {
3344         case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
3345         case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD:
3346                 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF)
3347                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3348                                         LOG_DISCOVERY,
3349                                         "2546 New FCF found event: "
3350                                         "evt_tag:x%x, fcf_index:x%x\n",
3351                                         acqe_fcoe->event_tag,
3352                                         acqe_fcoe->index);
3353                 else
3354                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3355                                         LOG_DISCOVERY,
3356                                         "2788 FCF parameter modified event: "
3357                                         "evt_tag:x%x, fcf_index:x%x\n",
3358                                         acqe_fcoe->event_tag,
3359                                         acqe_fcoe->index);
3360                 spin_lock_irq(&phba->hbalock);
3361                 if ((phba->fcf.fcf_flag & FCF_SCAN_DONE) ||
3362                     (phba->hba_flag & FCF_DISC_INPROGRESS)) {
3363                         /*
3364                          * If the current FCF is in discovered state or
3365                          * FCF discovery is in progress, do nothing.
3366                          */
3367                         spin_unlock_irq(&phba->hbalock);
3368                         break;
3369                 }
3370
3371                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3372                         /*
3373                          * If fast FCF failover rescan event is pending,
3374                          * do nothing.
3375                          */
3376                         spin_unlock_irq(&phba->hbalock);
3377                         break;
3378                 }
3379                 spin_unlock_irq(&phba->hbalock);
3380
3381                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
3382                     !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
3383                         /*
3384                          * During period of FCF discovery, read the FCF
3385                          * table record indexed by the event to update
3386                          * FCF round robin failover eligible FCF bmask.
3387                          */
3388                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3389                                         LOG_DISCOVERY,
3390                                         "2779 Read new FCF record with "
3391                                         "fcf_index:x%x for updating FCF "
3392                                         "round robin failover bmask\n",
3393                                         acqe_fcoe->index);
3394                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index);
3395                 }
3396
3397                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3398                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3399                                 "2770 Start FCF table scan due to new FCF "
3400                                 "event: evt_tag:x%x, fcf_index:x%x\n",
3401                                 acqe_fcoe->event_tag, acqe_fcoe->index);
3402                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3403                                                      LPFC_FCOE_FCF_GET_FIRST);
3404                 if (rc)
3405                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3406                                         "2547 Issue FCF scan read FCF mailbox "
3407                                         "command failed 0x%x\n", rc);
3408                 break;
3409
3410         case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
3411                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3412                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3413                         bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
3414                         acqe_fcoe->event_tag);
3415                 break;
3416
3417         case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
3418                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3419                         "2549 FCF disconnected from network index 0x%x"
3420                         " tag 0x%x\n", acqe_fcoe->index,
3421                         acqe_fcoe->event_tag);
3422                 /* If the event is not for currently used fcf do nothing */
3423                 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index)
3424                         break;
3425                 /* We request port to rediscover the entire FCF table for
3426                  * a fast recovery from case that the current FCF record
3427                  * is no longer valid if we are not in the middle of FCF
3428                  * failover process already.
3429                  */
3430                 spin_lock_irq(&phba->hbalock);
3431                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3432                         spin_unlock_irq(&phba->hbalock);
3433                         /* Update FLOGI FCF failover eligible FCF bmask */
3434                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index);
3435                         break;
3436                 }
3437                 /* Mark the fast failover process in progress */
3438                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3439                 spin_unlock_irq(&phba->hbalock);
3440                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3441                                 "2771 Start FCF fast failover process due to "
3442                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3443                                 "\n", acqe_fcoe->event_tag, acqe_fcoe->index);
3444                 rc = lpfc_sli4_redisc_fcf_table(phba);
3445                 if (rc) {
3446                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3447                                         LOG_DISCOVERY,
3448                                         "2772 Issue FCF rediscover mabilbox "
3449                                         "command failed, fail through to FCF "
3450                                         "dead event\n");
3451                         spin_lock_irq(&phba->hbalock);
3452                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3453                         spin_unlock_irq(&phba->hbalock);
3454                         /*
3455                          * Last resort will fail over by treating this
3456                          * as a link down to FCF registration.
3457                          */
3458                         lpfc_sli4_fcf_dead_failthrough(phba);
3459                 } else
3460                         /* Handling fast FCF failover to a DEAD FCF event
3461                          * is considered equalivant to receiving CVL to all
3462                          * vports.
3463                          */
3464                         lpfc_sli4_perform_all_vport_cvl(phba);
3465                 break;
3466         case LPFC_FCOE_EVENT_TYPE_CVL:
3467                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3468                         "2718 Clear Virtual Link Received for VPI 0x%x"
3469                         " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3470                 vport = lpfc_find_vport_by_vpid(phba,
3471                                 acqe_fcoe->index - phba->vpi_base);
3472                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3473                 if (!ndlp)
3474                         break;
3475                 active_vlink_present = 0;
3476
3477                 vports = lpfc_create_vport_work_array(phba);
3478                 if (vports) {
3479                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3480                                         i++) {
3481                                 if ((!(vports[i]->fc_flag &
3482                                         FC_VPORT_CVL_RCVD)) &&
3483                                         (vports[i]->port_state > LPFC_FDISC)) {
3484                                         active_vlink_present = 1;
3485                                         break;
3486                                 }
3487                         }
3488                         lpfc_destroy_vport_work_array(phba, vports);
3489                 }
3490
3491                 if (active_vlink_present) {
3492                         /*
3493                          * If there are other active VLinks present,
3494                          * re-instantiate the Vlink using FDISC.
3495                          */
3496                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3497                         shost = lpfc_shost_from_vport(vport);
3498                         spin_lock_irq(shost->host_lock);
3499                         ndlp->nlp_flag |= NLP_DELAY_TMO;
3500                         spin_unlock_irq(shost->host_lock);
3501                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3502                         vport->port_state = LPFC_FDISC;
3503                 } else {
3504                         /*
3505                          * Otherwise, we request port to rediscover
3506                          * the entire FCF table for a fast recovery
3507                          * from possible case that the current FCF
3508                          * is no longer valid if we are not already
3509                          * in the FCF failover process.
3510                          */
3511                         spin_lock_irq(&phba->hbalock);
3512                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3513                                 spin_unlock_irq(&phba->hbalock);
3514                                 break;
3515                         }
3516                         /* Mark the fast failover process in progress */
3517                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3518                         spin_unlock_irq(&phba->hbalock);
3519                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3520                                         LOG_DISCOVERY,
3521                                         "2773 Start FCF fast failover due "
3522                                         "to CVL event: evt_tag:x%x\n",
3523                                         acqe_fcoe->event_tag);
3524                         rc = lpfc_sli4_redisc_fcf_table(phba);
3525                         if (rc) {
3526                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3527                                                 LOG_DISCOVERY,
3528                                                 "2774 Issue FCF rediscover "
3529                                                 "mabilbox command failed, "
3530                                                 "through to CVL event\n");
3531                                 spin_lock_irq(&phba->hbalock);
3532                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3533                                 spin_unlock_irq(&phba->hbalock);
3534                                 /*
3535                                  * Last resort will be re-try on the
3536                                  * the current registered FCF entry.
3537                                  */
3538                                 lpfc_retry_pport_discovery(phba);
3539                         }
3540                 }
3541                 break;
3542         default:
3543                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3544                         "0288 Unknown FCoE event type 0x%x event tag "
3545                         "0x%x\n", event_type, acqe_fcoe->event_tag);
3546                 break;
3547         }
3548 }
3549
3550 /**
3551  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3552  * @phba: pointer to lpfc hba data structure.
3553  * @acqe_link: pointer to the async dcbx completion queue entry.
3554  *
3555  * This routine is to handle the SLI4 asynchronous dcbx event.
3556  **/
3557 static void
3558 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3559                          struct lpfc_acqe_dcbx *acqe_dcbx)
3560 {
3561         phba->fc_eventTag = acqe_dcbx->event_tag;
3562         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3563                         "0290 The SLI4 DCBX asynchronous event is not "
3564                         "handled yet\n");
3565 }
3566
3567 /**
3568  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3569  * @phba: pointer to lpfc hba data structure.
3570  * @acqe_link: pointer to the async grp5 completion queue entry.
3571  *
3572  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3573  * is an asynchronous notified of a logical link speed change.  The Port
3574  * reports the logical link speed in units of 10Mbps.
3575  **/
3576 static void
3577 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3578                          struct lpfc_acqe_grp5 *acqe_grp5)
3579 {
3580         uint16_t prev_ll_spd;
3581
3582         phba->fc_eventTag = acqe_grp5->event_tag;
3583         phba->fcoe_eventtag = acqe_grp5->event_tag;
3584         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3585         phba->sli4_hba.link_state.logical_speed =
3586                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3587         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3588                         "2789 GRP5 Async Event: Updating logical link speed "
3589                         "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3590                         (phba->sli4_hba.link_state.logical_speed*10));
3591 }
3592
3593 /**
3594  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3595  * @phba: pointer to lpfc hba data structure.
3596  *
3597  * This routine is invoked by the worker thread to process all the pending
3598  * SLI4 asynchronous events.
3599  **/
3600 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3601 {
3602         struct lpfc_cq_event *cq_event;
3603
3604         /* First, declare the async event has been handled */
3605         spin_lock_irq(&phba->hbalock);
3606         phba->hba_flag &= ~ASYNC_EVENT;
3607         spin_unlock_irq(&phba->hbalock);
3608         /* Now, handle all the async events */
3609         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3610                 /* Get the first event from the head of the event queue */
3611                 spin_lock_irq(&phba->hbalock);
3612                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3613                                  cq_event, struct lpfc_cq_event, list);
3614                 spin_unlock_irq(&phba->hbalock);
3615                 /* Process the asynchronous event */
3616                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3617                 case LPFC_TRAILER_CODE_LINK:
3618                         lpfc_sli4_async_link_evt(phba,
3619                                                  &cq_event->cqe.acqe_link);
3620                         break;
3621                 case LPFC_TRAILER_CODE_FCOE:
3622                         lpfc_sli4_async_fcoe_evt(phba,
3623                                                  &cq_event->cqe.acqe_fcoe);
3624                         break;
3625                 case LPFC_TRAILER_CODE_DCBX:
3626                         lpfc_sli4_async_dcbx_evt(phba,
3627                                                  &cq_event->cqe.acqe_dcbx);
3628                         break;
3629                 case LPFC_TRAILER_CODE_GRP5:
3630                         lpfc_sli4_async_grp5_evt(phba,
3631                                                  &cq_event->cqe.acqe_grp5);
3632                         break;
3633                 default:
3634                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3635                                         "1804 Invalid asynchrous event code: "
3636                                         "x%x\n", bf_get(lpfc_trailer_code,
3637                                         &cq_event->cqe.mcqe_cmpl));
3638                         break;
3639                 }
3640                 /* Free the completion event processed to the free pool */
3641                 lpfc_sli4_cq_event_release(phba, cq_event);
3642         }
3643 }
3644
3645 /**
3646  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3647  * @phba: pointer to lpfc hba data structure.
3648  *
3649  * This routine is invoked by the worker thread to process FCF table
3650  * rediscovery pending completion event.
3651  **/
3652 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3653 {
3654         int rc;
3655
3656         spin_lock_irq(&phba->hbalock);
3657         /* Clear FCF rediscovery timeout event */
3658         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3659         /* Clear driver fast failover FCF record flag */
3660         phba->fcf.failover_rec.flag = 0;
3661         /* Set state for FCF fast failover */
3662         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3663         spin_unlock_irq(&phba->hbalock);
3664
3665         /* Scan FCF table from the first entry to re-discover SAN */
3666         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3667                         "2777 Start FCF table scan after FCF "
3668                         "rediscovery quiescent period over\n");
3669         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3670         if (rc)
3671                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3672                                 "2747 Issue FCF scan read FCF mailbox "
3673                                 "command failed 0x%x\n", rc);
3674 }
3675
3676 /**
3677  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3678  * @phba: pointer to lpfc hba data structure.
3679  * @dev_grp: The HBA PCI-Device group number.
3680  *
3681  * This routine is invoked to set up the per HBA PCI-Device group function
3682  * API jump table entries.
3683  *
3684  * Return: 0 if success, otherwise -ENODEV
3685  **/
3686 int
3687 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3688 {
3689         int rc;
3690
3691         /* Set up lpfc PCI-device group */
3692         phba->pci_dev_grp = dev_grp;
3693
3694         /* The LPFC_PCI_DEV_OC uses SLI4 */
3695         if (dev_grp == LPFC_PCI_DEV_OC)
3696                 phba->sli_rev = LPFC_SLI_REV4;
3697
3698         /* Set up device INIT API function jump table */
3699         rc = lpfc_init_api_table_setup(phba, dev_grp);
3700         if (rc)
3701                 return -ENODEV;
3702         /* Set up SCSI API function jump table */
3703         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3704         if (rc)
3705                 return -ENODEV;
3706         /* Set up SLI API function jump table */
3707         rc = lpfc_sli_api_table_setup(phba, dev_grp);
3708         if (rc)
3709                 return -ENODEV;
3710         /* Set up MBOX API function jump table */
3711         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3712         if (rc)
3713                 return -ENODEV;
3714
3715         return 0;
3716 }
3717
3718 /**
3719  * lpfc_log_intr_mode - Log the active interrupt mode
3720  * @phba: pointer to lpfc hba data structure.
3721  * @intr_mode: active interrupt mode adopted.
3722  *
3723  * This routine it invoked to log the currently used active interrupt mode
3724  * to the device.
3725  **/
3726 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3727 {
3728         switch (intr_mode) {
3729         case 0:
3730                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3731                                 "0470 Enable INTx interrupt mode.\n");
3732                 break;
3733         case 1:
3734                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3735                                 "0481 Enabled MSI interrupt mode.\n");
3736                 break;
3737         case 2:
3738                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3739                                 "0480 Enabled MSI-X interrupt mode.\n");
3740                 break;
3741         default:
3742                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3743                                 "0482 Illegal interrupt mode.\n");
3744                 break;
3745         }
3746         return;
3747 }
3748
3749 /**
3750  * lpfc_enable_pci_dev - Enable a generic PCI device.
3751  * @phba: pointer to lpfc hba data structure.
3752  *
3753  * This routine is invoked to enable the PCI device that is common to all
3754  * PCI devices.
3755  *
3756  * Return codes
3757  *      0 - successful
3758  *      other values - error
3759  **/
3760 static int
3761 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3762 {
3763         struct pci_dev *pdev;
3764         int bars;
3765
3766         /* Obtain PCI device reference */
3767         if (!phba->pcidev)
3768                 goto out_error;
3769         else
3770                 pdev = phba->pcidev;
3771         /* Select PCI BARs */
3772         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3773         /* Enable PCI device */
3774         if (pci_enable_device_mem(pdev))
3775                 goto out_error;
3776         /* Request PCI resource for the device */
3777         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3778                 goto out_disable_device;
3779         /* Set up device as PCI master and save state for EEH */
3780         pci_set_master(pdev);
3781         pci_try_set_mwi(pdev);
3782         pci_save_state(pdev);
3783
3784         return 0;
3785
3786 out_disable_device:
3787         pci_disable_device(pdev);
3788 out_error:
3789         return -ENODEV;
3790 }
3791
3792 /**
3793  * lpfc_disable_pci_dev - Disable a generic PCI device.
3794  * @phba: pointer to lpfc hba data structure.
3795  *
3796  * This routine is invoked to disable the PCI device that is common to all
3797  * PCI devices.
3798  **/
3799 static void
3800 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3801 {
3802         struct pci_dev *pdev;
3803         int bars;
3804
3805         /* Obtain PCI device reference */
3806         if (!phba->pcidev)
3807                 return;
3808         else
3809                 pdev = phba->pcidev;
3810         /* Select PCI BARs */
3811         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3812         /* Release PCI resource and disable PCI device */
3813         pci_release_selected_regions(pdev, bars);
3814         pci_disable_device(pdev);
3815         /* Null out PCI private reference to driver */
3816         pci_set_drvdata(pdev, NULL);
3817
3818         return;
3819 }
3820
3821 /**
3822  * lpfc_reset_hba - Reset a hba
3823  * @phba: pointer to lpfc hba data structure.
3824  *
3825  * This routine is invoked to reset a hba device. It brings the HBA
3826  * offline, performs a board restart, and then brings the board back
3827  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3828  * on outstanding mailbox commands.
3829  **/
3830 void
3831 lpfc_reset_hba(struct lpfc_hba *phba)
3832 {
3833         /* If resets are disabled then set error state and return. */
3834         if (!phba->cfg_enable_hba_reset) {
3835                 phba->link_state = LPFC_HBA_ERROR;
3836                 return;
3837         }
3838         lpfc_offline_prep(phba);
3839         lpfc_offline(phba);
3840         lpfc_sli_brdrestart(phba);
3841         lpfc_online(phba);
3842         lpfc_unblock_mgmt_io(phba);
3843 }
3844
3845 /**
3846  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3847  * @phba: pointer to lpfc hba data structure.
3848  *
3849  * This routine is invoked to set up the driver internal resources specific to
3850  * support the SLI-3 HBA device it attached to.
3851  *
3852  * Return codes
3853  *      0 - successful
3854  *      other values - error
3855  **/
3856 static int
3857 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3858 {
3859         struct lpfc_sli *psli;
3860
3861         /*
3862          * Initialize timers used by driver
3863          */
3864
3865         /* Heartbeat timer */
3866         init_timer(&phba->hb_tmofunc);
3867         phba->hb_tmofunc.function = lpfc_hb_timeout;
3868         phba->hb_tmofunc.data = (unsigned long)phba;
3869
3870         psli = &phba->sli;
3871         /* MBOX heartbeat timer */
3872         init_timer(&psli->mbox_tmo);
3873         psli->mbox_tmo.function = lpfc_mbox_timeout;
3874         psli->mbox_tmo.data = (unsigned long) phba;
3875         /* FCP polling mode timer */
3876         init_timer(&phba->fcp_poll_timer);
3877         phba->fcp_poll_timer.function = lpfc_poll_timeout;
3878         phba->fcp_poll_timer.data = (unsigned long) phba;
3879         /* Fabric block timer */
3880         init_timer(&phba->fabric_block_timer);
3881         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3882         phba->fabric_block_timer.data = (unsigned long) phba;
3883         /* EA polling mode timer */
3884         init_timer(&phba->eratt_poll);
3885         phba->eratt_poll.function = lpfc_poll_eratt;
3886         phba->eratt_poll.data = (unsigned long) phba;
3887
3888         /* Host attention work mask setup */
3889         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3890         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3891
3892         /* Get all the module params for configuring this host */
3893         lpfc_get_cfgparam(phba);
3894         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
3895                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
3896                 /* check for menlo minimum sg count */
3897                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
3898                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
3899         }
3900
3901         /*
3902          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3903          * used to create the sg_dma_buf_pool must be dynamically calculated.
3904          * 2 segments are added since the IOCB needs a command and response bde.
3905          */
3906         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3907                 sizeof(struct fcp_rsp) +
3908                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3909
3910         if (phba->cfg_enable_bg) {
3911                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3912                 phba->cfg_sg_dma_buf_size +=
3913                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3914         }
3915
3916         /* Also reinitialize the host templates with new values. */
3917         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3918         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3919
3920         phba->max_vpi = LPFC_MAX_VPI;
3921         /* This will be set to correct value after config_port mbox */
3922         phba->max_vports = 0;
3923
3924         /*
3925          * Initialize the SLI Layer to run with lpfc HBAs.
3926          */
3927         lpfc_sli_setup(phba);
3928         lpfc_sli_queue_setup(phba);
3929
3930         /* Allocate device driver memory */
3931         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3932                 return -ENOMEM;
3933
3934         return 0;
3935 }
3936
3937 /**
3938  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3939  * @phba: pointer to lpfc hba data structure.
3940  *
3941  * This routine is invoked to unset the driver internal resources set up
3942  * specific for supporting the SLI-3 HBA device it attached to.
3943  **/
3944 static void
3945 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3946 {
3947         /* Free device driver memory allocated */
3948         lpfc_mem_free_all(phba);
3949
3950         return;
3951 }
3952
3953 /**
3954  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3955  * @phba: pointer to lpfc hba data structure.
3956  *
3957  * This routine is invoked to set up the driver internal resources specific to
3958  * support the SLI-4 HBA device it attached to.
3959  *
3960  * Return codes
3961  *      0 - successful
3962  *      other values - error
3963  **/
3964 static int
3965 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3966 {
3967         struct lpfc_sli *psli;
3968         LPFC_MBOXQ_t *mboxq;
3969         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
3970         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
3971         struct lpfc_mqe *mqe;
3972         int longs;
3973
3974         /* Before proceed, wait for POST done and device ready */
3975         rc = lpfc_sli4_post_status_check(phba);
3976         if (rc)
3977                 return -ENODEV;
3978
3979         /*
3980          * Initialize timers used by driver
3981          */
3982
3983         /* Heartbeat timer */
3984         init_timer(&phba->hb_tmofunc);
3985         phba->hb_tmofunc.function = lpfc_hb_timeout;
3986         phba->hb_tmofunc.data = (unsigned long)phba;
3987
3988         psli = &phba->sli;
3989         /* MBOX heartbeat timer */
3990         init_timer(&psli->mbox_tmo);
3991         psli->mbox_tmo.function = lpfc_mbox_timeout;
3992         psli->mbox_tmo.data = (unsigned long) phba;
3993         /* Fabric block timer */
3994         init_timer(&phba->fabric_block_timer);
3995         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3996         phba->fabric_block_timer.data = (unsigned long) phba;
3997         /* EA polling mode timer */
3998         init_timer(&phba->eratt_poll);
3999         phba->eratt_poll.function = lpfc_poll_eratt;
4000         phba->eratt_poll.data = (unsigned long) phba;
4001         /* FCF rediscover timer */
4002         init_timer(&phba->fcf.redisc_wait);
4003         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4004         phba->fcf.redisc_wait.data = (unsigned long)phba;
4005
4006         /*
4007          * We need to do a READ_CONFIG mailbox command here before
4008          * calling lpfc_get_cfgparam. For VFs this will report the
4009          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4010          * All of the resources allocated
4011          * for this Port are tied to these values.
4012          */
4013         /* Get all the module params for configuring this host */
4014         lpfc_get_cfgparam(phba);
4015         phba->max_vpi = LPFC_MAX_VPI;
4016         /* This will be set to correct value after the read_config mbox */
4017         phba->max_vports = 0;
4018
4019         /* Program the default value of vlan_id and fc_map */
4020         phba->valid_vlan = 0;
4021         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4022         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4023         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4024
4025         /*
4026          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4027          * used to create the sg_dma_buf_pool must be dynamically calculated.
4028          * 2 segments are added since the IOCB needs a command and response bde.
4029          * To insure that the scsi sgl does not cross a 4k page boundary only
4030          * sgl sizes of must be a power of 2.
4031          */
4032         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4033                     ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4034         /* Feature Level 1 hardware is limited to 2 pages */
4035         if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) ==
4036              LPFC_SLI_INTF_FEATURELEVEL1_1))
4037                 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4038         else
4039                 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4040         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4041              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4042              dma_buf_size = dma_buf_size << 1)
4043                 ;
4044         if (dma_buf_size == max_buf_size)
4045                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4046                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4047                         (2 * sizeof(struct sli4_sge))) /
4048                                 sizeof(struct sli4_sge);
4049         phba->cfg_sg_dma_buf_size = dma_buf_size;
4050
4051         /* Initialize buffer queue management fields */
4052         hbq_count = lpfc_sli_hbq_count();
4053         for (i = 0; i < hbq_count; ++i)
4054                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4055         INIT_LIST_HEAD(&phba->rb_pend_list);
4056         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4057         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4058
4059         /*
4060          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4061          */
4062         /* Initialize the Abort scsi buffer list used by driver */
4063         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4064         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4065         /* This abort list used by worker thread */
4066         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4067
4068         /*
4069          * Initialize dirver internal slow-path work queues
4070          */
4071
4072         /* Driver internel slow-path CQ Event pool */
4073         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4074         /* Response IOCB work queue list */
4075         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4076         /* Asynchronous event CQ Event work queue list */
4077         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4078         /* Fast-path XRI aborted CQ Event work queue list */
4079         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4080         /* Slow-path XRI aborted CQ Event work queue list */
4081         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4082         /* Receive queue CQ Event work queue list */
4083         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4084
4085         /* Initialize the driver internal SLI layer lists. */
4086         lpfc_sli_setup(phba);
4087         lpfc_sli_queue_setup(phba);
4088
4089         /* Allocate device driver memory */
4090         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4091         if (rc)
4092                 return -ENOMEM;
4093
4094         /* Create the bootstrap mailbox command */
4095         rc = lpfc_create_bootstrap_mbox(phba);
4096         if (unlikely(rc))
4097                 goto out_free_mem;
4098
4099         /* Set up the host's endian order with the device. */
4100         rc = lpfc_setup_endian_order(phba);
4101         if (unlikely(rc))
4102                 goto out_free_bsmbx;
4103
4104         rc = lpfc_sli4_fw_cfg_check(phba);
4105         if (unlikely(rc))
4106                 goto out_free_bsmbx;
4107
4108         /* Set up the hba's configuration parameters. */
4109         rc = lpfc_sli4_read_config(phba);
4110         if (unlikely(rc))
4111                 goto out_free_bsmbx;
4112
4113         /* Perform a function reset */
4114         rc = lpfc_pci_function_reset(phba);
4115         if (unlikely(rc))
4116                 goto out_free_bsmbx;
4117
4118         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4119                                                        GFP_KERNEL);
4120         if (!mboxq) {
4121                 rc = -ENOMEM;
4122                 goto out_free_bsmbx;
4123         }
4124
4125         /* Get the Supported Pages. It is always available. */
4126         lpfc_supported_pages(mboxq);
4127         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4128         if (unlikely(rc)) {
4129                 rc = -EIO;
4130                 mempool_free(mboxq, phba->mbox_mem_pool);
4131                 goto out_free_bsmbx;
4132         }
4133
4134         mqe = &mboxq->u.mqe;
4135         memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4136                LPFC_MAX_SUPPORTED_PAGES);
4137         for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4138                 switch (pn_page[i]) {
4139                 case LPFC_SLI4_PARAMETERS:
4140                         phba->sli4_hba.pc_sli4_params.supported = 1;
4141                         break;
4142                 default:
4143                         break;
4144                 }
4145         }
4146
4147         /* Read the port's SLI4 Parameters capabilities if supported. */
4148         if (phba->sli4_hba.pc_sli4_params.supported)
4149                 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4150         mempool_free(mboxq, phba->mbox_mem_pool);
4151         if (rc) {
4152                 rc = -EIO;
4153                 goto out_free_bsmbx;
4154         }
4155         /* Create all the SLI4 queues */
4156         rc = lpfc_sli4_queue_create(phba);
4157         if (rc)
4158                 goto out_free_bsmbx;
4159
4160         /* Create driver internal CQE event pool */
4161         rc = lpfc_sli4_cq_event_pool_create(phba);
4162         if (rc)
4163                 goto out_destroy_queue;
4164
4165         /* Initialize and populate the iocb list per host */
4166         rc = lpfc_init_sgl_list(phba);
4167         if (rc) {
4168                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4169                                 "1400 Failed to initialize sgl list.\n");
4170                 goto out_destroy_cq_event_pool;
4171         }
4172         rc = lpfc_init_active_sgl_array(phba);
4173         if (rc) {
4174                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4175                                 "1430 Failed to initialize sgl list.\n");
4176                 goto out_free_sgl_list;
4177         }
4178
4179         rc = lpfc_sli4_init_rpi_hdrs(phba);
4180         if (rc) {
4181                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4182                                 "1432 Failed to initialize rpi headers.\n");
4183                 goto out_free_active_sgl;
4184         }
4185
4186         /* Allocate eligible FCF bmask memory for FCF round robin failover */
4187         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4188         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4189                                          GFP_KERNEL);
4190         if (!phba->fcf.fcf_rr_bmask) {
4191                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4192                                 "2759 Failed allocate memory for FCF round "
4193                                 "robin failover bmask\n");
4194                 goto out_remove_rpi_hdrs;
4195         }
4196
4197         phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4198                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4199         if (!phba->sli4_hba.fcp_eq_hdl) {
4200                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4201                                 "2572 Failed allocate memory for fast-path "
4202                                 "per-EQ handle array\n");
4203                 goto out_free_fcf_rr_bmask;
4204         }
4205
4206         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4207                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4208         if (!phba->sli4_hba.msix_entries) {
4209                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4210                                 "2573 Failed allocate memory for msi-x "
4211                                 "interrupt vector entries\n");
4212                 goto out_free_fcp_eq_hdl;
4213         }
4214
4215         return rc;
4216
4217 out_free_fcp_eq_hdl:
4218         kfree(phba->sli4_hba.fcp_eq_hdl);
4219 out_free_fcf_rr_bmask:
4220         kfree(phba->fcf.fcf_rr_bmask);
4221 out_remove_rpi_hdrs:
4222         lpfc_sli4_remove_rpi_hdrs(phba);
4223 out_free_active_sgl:
4224         lpfc_free_active_sgl(phba);
4225 out_free_sgl_list:
4226         lpfc_free_sgl_list(phba);
4227 out_destroy_cq_event_pool:
4228         lpfc_sli4_cq_event_pool_destroy(phba);
4229 out_destroy_queue:
4230         lpfc_sli4_queue_destroy(phba);
4231 out_free_bsmbx:
4232         lpfc_destroy_bootstrap_mbox(phba);
4233 out_free_mem:
4234         lpfc_mem_free(phba);
4235         return rc;
4236 }
4237
4238 /**
4239  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4240  * @phba: pointer to lpfc hba data structure.
4241  *
4242  * This routine is invoked to unset the driver internal resources set up
4243  * specific for supporting the SLI-4 HBA device it attached to.
4244  **/
4245 static void
4246 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4247 {
4248         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4249
4250         /* unregister default FCFI from the HBA */
4251         lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
4252
4253         /* Free the default FCR table */
4254         lpfc_sli_remove_dflt_fcf(phba);
4255
4256         /* Free memory allocated for msi-x interrupt vector entries */
4257         kfree(phba->sli4_hba.msix_entries);
4258
4259         /* Free memory allocated for fast-path work queue handles */
4260         kfree(phba->sli4_hba.fcp_eq_hdl);
4261
4262         /* Free the allocated rpi headers. */
4263         lpfc_sli4_remove_rpi_hdrs(phba);
4264         lpfc_sli4_remove_rpis(phba);
4265
4266         /* Free eligible FCF index bmask */
4267         kfree(phba->fcf.fcf_rr_bmask);
4268
4269         /* Free the ELS sgl list */
4270         lpfc_free_active_sgl(phba);
4271         lpfc_free_sgl_list(phba);
4272
4273         /* Free the SCSI sgl management array */
4274         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4275
4276         /* Free the SLI4 queues */
4277         lpfc_sli4_queue_destroy(phba);
4278
4279         /* Free the completion queue EQ event pool */
4280         lpfc_sli4_cq_event_release_all(phba);
4281         lpfc_sli4_cq_event_pool_destroy(phba);
4282
4283         /* Reset SLI4 HBA FCoE function */
4284         lpfc_pci_function_reset(phba);
4285
4286         /* Free the bsmbx region. */
4287         lpfc_destroy_bootstrap_mbox(phba);
4288
4289         /* Free the SLI Layer memory with SLI4 HBAs */
4290         lpfc_mem_free_all(phba);
4291
4292         /* Free the current connect table */
4293         list_for_each_entry_safe(conn_entry, next_conn_entry,
4294                 &phba->fcf_conn_rec_list, list) {
4295                 list_del_init(&conn_entry->list);
4296                 kfree(conn_entry);
4297         }
4298
4299         return;
4300 }
4301
4302 /**
4303  * lpfc_init_api_table_setup - Set up init api fucntion jump table
4304  * @phba: The hba struct for which this call is being executed.
4305  * @dev_grp: The HBA PCI-Device group number.
4306  *
4307  * This routine sets up the device INIT interface API function jump table
4308  * in @phba struct.
4309  *
4310  * Returns: 0 - success, -ENODEV - failure.
4311  **/
4312 int
4313 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4314 {
4315         phba->lpfc_hba_init_link = lpfc_hba_init_link;
4316         phba->lpfc_hba_down_link = lpfc_hba_down_link;
4317         switch (dev_grp) {
4318         case LPFC_PCI_DEV_LP:
4319                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4320                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4321                 phba->lpfc_stop_port = lpfc_stop_port_s3;
4322                 break;
4323         case LPFC_PCI_DEV_OC:
4324                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4325                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4326                 phba->lpfc_stop_port = lpfc_stop_port_s4;
4327                 break;
4328         default:
4329                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4330                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
4331                                 dev_grp);
4332                 return -ENODEV;
4333                 break;
4334         }
4335         return 0;
4336 }
4337
4338 /**
4339  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4340  * @phba: pointer to lpfc hba data structure.
4341  *
4342  * This routine is invoked to set up the driver internal resources before the
4343  * device specific resource setup to support the HBA device it attached to.
4344  *
4345  * Return codes
4346  *      0 - successful
4347  *      other values - error
4348  **/
4349 static int
4350 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4351 {
4352         /*
4353          * Driver resources common to all SLI revisions
4354          */
4355         atomic_set(&phba->fast_event_count, 0);
4356         spin_lock_init(&phba->hbalock);
4357
4358         /* Initialize ndlp management spinlock */
4359         spin_lock_init(&phba->ndlp_lock);
4360
4361         INIT_LIST_HEAD(&phba->port_list);
4362         INIT_LIST_HEAD(&phba->work_list);
4363         init_waitqueue_head(&phba->wait_4_mlo_m_q);
4364
4365         /* Initialize the wait queue head for the kernel thread */
4366         init_waitqueue_head(&phba->work_waitq);
4367
4368         /* Initialize the scsi buffer list used by driver for scsi IO */
4369         spin_lock_init(&phba->scsi_buf_list_lock);
4370         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4371
4372         /* Initialize the fabric iocb list */
4373         INIT_LIST_HEAD(&phba->fabric_iocb_list);
4374
4375         /* Initialize list to save ELS buffers */
4376         INIT_LIST_HEAD(&phba->elsbuf);
4377
4378         /* Initialize FCF connection rec list */
4379         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4380
4381         return 0;
4382 }
4383
4384 /**
4385  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4386  * @phba: pointer to lpfc hba data structure.
4387  *
4388  * This routine is invoked to set up the driver internal resources after the
4389  * device specific resource setup to support the HBA device it attached to.
4390  *
4391  * Return codes
4392  *      0 - successful
4393  *      other values - error
4394  **/
4395 static int
4396 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4397 {
4398         int error;
4399
4400         /* Startup the kernel thread for this host adapter. */
4401         phba->worker_thread = kthread_run(lpfc_do_work, phba,
4402                                           "lpfc_worker_%d", phba->brd_no);
4403         if (IS_ERR(phba->worker_thread)) {
4404                 error = PTR_ERR(phba->worker_thread);
4405                 return error;
4406         }
4407
4408         return 0;
4409 }
4410
4411 /**
4412  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4413  * @phba: pointer to lpfc hba data structure.
4414  *
4415  * This routine is invoked to unset the driver internal resources set up after
4416  * the device specific resource setup for supporting the HBA device it
4417  * attached to.
4418  **/
4419 static void
4420 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4421 {
4422         /* Stop kernel worker thread */
4423         kthread_stop(phba->worker_thread);
4424 }
4425
4426 /**
4427  * lpfc_free_iocb_list - Free iocb list.
4428  * @phba: pointer to lpfc hba data structure.
4429  *
4430  * This routine is invoked to free the driver's IOCB list and memory.
4431  **/
4432 static void
4433 lpfc_free_iocb_list(struct lpfc_hba *phba)
4434 {
4435         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4436
4437         spin_lock_irq(&phba->hbalock);
4438         list_for_each_entry_safe(iocbq_entry, iocbq_next,
4439                                  &phba->lpfc_iocb_list, list) {
4440                 list_del(&iocbq_entry->list);
4441                 kfree(iocbq_entry);
4442                 phba->total_iocbq_bufs--;
4443         }
4444         spin_unlock_irq(&phba->hbalock);
4445
4446         return;
4447 }
4448
4449 /**
4450  * lpfc_init_iocb_list - Allocate and initialize iocb list.
4451  * @phba: pointer to lpfc hba data structure.
4452  *
4453  * This routine is invoked to allocate and initizlize the driver's IOCB
4454  * list and set up the IOCB tag array accordingly.
4455  *
4456  * Return codes
4457  *      0 - successful
4458  *      other values - error
4459  **/
4460 static int
4461 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4462 {
4463         struct lpfc_iocbq *iocbq_entry = NULL;
4464         uint16_t iotag;
4465         int i;
4466
4467         /* Initialize and populate the iocb list per host.  */
4468         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4469         for (i = 0; i < iocb_count; i++) {
4470                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4471                 if (iocbq_entry == NULL) {
4472                         printk(KERN_ERR "%s: only allocated %d iocbs of "
4473                                 "expected %d count. Unloading driver.\n",
4474                                 __func__, i, LPFC_IOCB_LIST_CNT);
4475                         goto out_free_iocbq;
4476                 }
4477
4478                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4479                 if (iotag == 0) {
4480                         kfree(iocbq_entry);
4481                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
4482                                 "Unloading driver.\n", __func__);
4483                         goto out_free_iocbq;
4484                 }
4485                 iocbq_entry->sli4_xritag = NO_XRI;
4486
4487                 spin_lock_irq(&phba->hbalock);
4488                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4489                 phba->total_iocbq_bufs++;
4490                 spin_unlock_irq(&phba->hbalock);
4491         }
4492
4493         return 0;
4494
4495 out_free_iocbq:
4496         lpfc_free_iocb_list(phba);
4497
4498         return -ENOMEM;
4499 }
4500
4501 /**
4502  * lpfc_free_sgl_list - Free sgl list.
4503  * @phba: pointer to lpfc hba data structure.
4504  *
4505  * This routine is invoked to free the driver's sgl list and memory.
4506  **/
4507 static void
4508 lpfc_free_sgl_list(struct lpfc_hba *phba)
4509 {
4510         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4511         LIST_HEAD(sglq_list);
4512         int rc = 0;
4513
4514         spin_lock_irq(&phba->hbalock);
4515         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4516         spin_unlock_irq(&phba->hbalock);
4517
4518         list_for_each_entry_safe(sglq_entry, sglq_next,
4519                                  &sglq_list, list) {
4520                 list_del(&sglq_entry->list);
4521                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4522                 kfree(sglq_entry);
4523                 phba->sli4_hba.total_sglq_bufs--;
4524         }
4525         rc = lpfc_sli4_remove_all_sgl_pages(phba);
4526         if (rc) {
4527                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4528                         "2005 Unable to deregister pages from HBA: %x\n", rc);
4529         }
4530         kfree(phba->sli4_hba.lpfc_els_sgl_array);
4531 }
4532
4533 /**
4534  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4535  * @phba: pointer to lpfc hba data structure.
4536  *
4537  * This routine is invoked to allocate the driver's active sgl memory.
4538  * This array will hold the sglq_entry's for active IOs.
4539  **/
4540 static int
4541 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4542 {
4543         int size;
4544         size = sizeof(struct lpfc_sglq *);
4545         size *= phba->sli4_hba.max_cfg_param.max_xri;
4546
4547         phba->sli4_hba.lpfc_sglq_active_list =
4548                 kzalloc(size, GFP_KERNEL);
4549         if (!phba->sli4_hba.lpfc_sglq_active_list)
4550                 return -ENOMEM;
4551         return 0;
4552 }
4553
4554 /**
4555  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4556  * @phba: pointer to lpfc hba data structure.
4557  *
4558  * This routine is invoked to walk through the array of active sglq entries
4559  * and free all of the resources.
4560  * This is just a place holder for now.
4561  **/
4562 static void
4563 lpfc_free_active_sgl(struct lpfc_hba *phba)
4564 {
4565         kfree(phba->sli4_hba.lpfc_sglq_active_list);
4566 }
4567
4568 /**
4569  * lpfc_init_sgl_list - Allocate and initialize sgl list.
4570  * @phba: pointer to lpfc hba data structure.
4571  *
4572  * This routine is invoked to allocate and initizlize the driver's sgl
4573  * list and set up the sgl xritag tag array accordingly.
4574  *
4575  * Return codes
4576  *      0 - successful
4577  *      other values - error
4578  **/
4579 static int
4580 lpfc_init_sgl_list(struct lpfc_hba *phba)
4581 {
4582         struct lpfc_sglq *sglq_entry = NULL;
4583         int i;
4584         int els_xri_cnt;
4585
4586         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4587         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4588                                 "2400 lpfc_init_sgl_list els %d.\n",
4589                                 els_xri_cnt);
4590         /* Initialize and populate the sglq list per host/VF. */
4591         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4592         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4593
4594         /* Sanity check on XRI management */
4595         if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4596                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4597                                 "2562 No room left for SCSI XRI allocation: "
4598                                 "max_xri=%d, els_xri=%d\n",
4599                                 phba->sli4_hba.max_cfg_param.max_xri,
4600                                 els_xri_cnt);
4601                 return -ENOMEM;
4602         }
4603
4604         /* Allocate memory for the ELS XRI management array */
4605         phba->sli4_hba.lpfc_els_sgl_array =
4606                         kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4607                         GFP_KERNEL);
4608
4609         if (!phba->sli4_hba.lpfc_els_sgl_array) {
4610                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4611                                 "2401 Failed to allocate memory for ELS "
4612                                 "XRI management array of size %d.\n",
4613                                 els_xri_cnt);
4614                 return -ENOMEM;
4615         }
4616
4617         /* Keep the SCSI XRI into the XRI management array */
4618         phba->sli4_hba.scsi_xri_max =
4619                         phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4620         phba->sli4_hba.scsi_xri_cnt = 0;
4621
4622         phba->sli4_hba.lpfc_scsi_psb_array =
4623                         kzalloc((sizeof(struct lpfc_scsi_buf *) *
4624                         phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4625
4626         if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4627                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4628                                 "2563 Failed to allocate memory for SCSI "
4629                                 "XRI management array of size %d.\n",
4630                                 phba->sli4_hba.scsi_xri_max);
4631                 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4632                 return -ENOMEM;
4633         }
4634
4635         for (i = 0; i < els_xri_cnt; i++) {
4636                 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4637                 if (sglq_entry == NULL) {
4638                         printk(KERN_ERR "%s: only allocated %d sgls of "
4639                                 "expected %d count. Unloading driver.\n",
4640                                 __func__, i, els_xri_cnt);
4641                         goto out_free_mem;
4642                 }
4643
4644                 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4645                 if (sglq_entry->sli4_xritag == NO_XRI) {
4646                         kfree(sglq_entry);
4647                         printk(KERN_ERR "%s: failed to allocate XRI.\n"
4648                                 "Unloading driver.\n", __func__);
4649                         goto out_free_mem;
4650                 }
4651                 sglq_entry->buff_type = GEN_BUFF_TYPE;
4652                 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4653                 if (sglq_entry->virt == NULL) {
4654                         kfree(sglq_entry);
4655                         printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4656                                 "Unloading driver.\n", __func__);
4657                         goto out_free_mem;
4658                 }
4659                 sglq_entry->sgl = sglq_entry->virt;
4660                 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4661
4662                 /* The list order is used by later block SGL registraton */
4663                 spin_lock_irq(&phba->hbalock);
4664                 sglq_entry->state = SGL_FREED;
4665                 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4666                 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4667                 phba->sli4_hba.total_sglq_bufs++;
4668                 spin_unlock_irq(&phba->hbalock);
4669         }
4670         return 0;
4671
4672 out_free_mem:
4673         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4674         lpfc_free_sgl_list(phba);
4675         return -ENOMEM;
4676 }
4677
4678 /**
4679  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4680  * @phba: pointer to lpfc hba data structure.
4681  *
4682  * This routine is invoked to post rpi header templates to the
4683  * HBA consistent with the SLI-4 interface spec.  This routine
4684  * posts a PAGE_SIZE memory region to the port to hold up to
4685  * PAGE_SIZE modulo 64 rpi context headers.
4686  * No locks are held here because this is an initialization routine
4687  * called only from probe or lpfc_online when interrupts are not
4688  * enabled and the driver is reinitializing the device.
4689  *
4690  * Return codes
4691  *      0 - successful
4692  *      ENOMEM - No availble memory
4693  *      EIO - The mailbox failed to complete successfully.
4694  **/
4695 int
4696 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4697 {
4698         int rc = 0;
4699         int longs;
4700         uint16_t rpi_count;
4701         struct lpfc_rpi_hdr *rpi_hdr;
4702
4703         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4704
4705         /*
4706          * Provision an rpi bitmask range for discovery. The total count
4707          * is the difference between max and base + 1.
4708          */
4709         rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4710                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4711
4712         longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4713         phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4714                                            GFP_KERNEL);
4715         if (!phba->sli4_hba.rpi_bmask)
4716                 return -ENOMEM;
4717
4718         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4719         if (!rpi_hdr) {
4720                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4721                                 "0391 Error during rpi post operation\n");
4722                 lpfc_sli4_remove_rpis(phba);
4723                 rc = -ENODEV;
4724         }
4725
4726         return rc;
4727 }
4728
4729 /**
4730  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4731  * @phba: pointer to lpfc hba data structure.
4732  *
4733  * This routine is invoked to allocate a single 4KB memory region to
4734  * support rpis and stores them in the phba.  This single region
4735  * provides support for up to 64 rpis.  The region is used globally
4736  * by the device.
4737  *
4738  * Returns:
4739  *   A valid rpi hdr on success.
4740  *   A NULL pointer on any failure.
4741  **/
4742 struct lpfc_rpi_hdr *
4743 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4744 {
4745         uint16_t rpi_limit, curr_rpi_range;
4746         struct lpfc_dmabuf *dmabuf;
4747         struct lpfc_rpi_hdr *rpi_hdr;
4748
4749         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4750                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4751
4752         spin_lock_irq(&phba->hbalock);
4753         curr_rpi_range = phba->sli4_hba.next_rpi;
4754         spin_unlock_irq(&phba->hbalock);
4755
4756         /*
4757          * The port has a limited number of rpis. The increment here
4758          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4759          * and to allow the full max_rpi range per port.
4760          */
4761         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4762                 return NULL;
4763
4764         /*
4765          * First allocate the protocol header region for the port.  The
4766          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4767          */
4768         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4769         if (!dmabuf)
4770                 return NULL;
4771
4772         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4773                                           LPFC_HDR_TEMPLATE_SIZE,
4774                                           &dmabuf->phys,
4775                                           GFP_KERNEL);
4776         if (!dmabuf->virt) {
4777                 rpi_hdr = NULL;
4778                 goto err_free_dmabuf;
4779         }
4780
4781         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4782         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4783                 rpi_hdr = NULL;
4784                 goto err_free_coherent;
4785         }
4786
4787         /* Save the rpi header data for cleanup later. */
4788         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4789         if (!rpi_hdr)
4790                 goto err_free_coherent;
4791
4792         rpi_hdr->dmabuf = dmabuf;
4793         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4794         rpi_hdr->page_count = 1;
4795         spin_lock_irq(&phba->hbalock);
4796         rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4797         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4798
4799         /*
4800          * The next_rpi stores the next module-64 rpi value to post
4801          * in any subsequent rpi memory region postings.
4802          */
4803         phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4804         spin_unlock_irq(&phba->hbalock);
4805         return rpi_hdr;
4806
4807  err_free_coherent:
4808         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4809                           dmabuf->virt, dmabuf->phys);
4810  err_free_dmabuf:
4811         kfree(dmabuf);
4812         return NULL;
4813 }
4814
4815 /**
4816  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4817  * @phba: pointer to lpfc hba data structure.
4818  *
4819  * This routine is invoked to remove all memory resources allocated
4820  * to support rpis. This routine presumes the caller has released all
4821  * rpis consumed by fabric or port logins and is prepared to have
4822  * the header pages removed.
4823  **/
4824 void
4825 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4826 {
4827         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4828
4829         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4830                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4831                 list_del(&rpi_hdr->list);
4832                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4833                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4834                 kfree(rpi_hdr->dmabuf);
4835                 kfree(rpi_hdr);
4836         }
4837
4838         phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4839         memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4840 }
4841
4842 /**
4843  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4844  * @pdev: pointer to pci device data structure.
4845  *
4846  * This routine is invoked to allocate the driver hba data structure for an
4847  * HBA device. If the allocation is successful, the phba reference to the
4848  * PCI device data structure is set.
4849  *
4850  * Return codes
4851  *      pointer to @phba - successful
4852  *      NULL - error
4853  **/
4854 static struct lpfc_hba *
4855 lpfc_hba_alloc(struct pci_dev *pdev)
4856 {
4857         struct lpfc_hba *phba;
4858
4859         /* Allocate memory for HBA structure */
4860         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4861         if (!phba) {
4862                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
4863                 return NULL;
4864         }
4865
4866         /* Set reference to PCI device in HBA structure */
4867         phba->pcidev = pdev;
4868
4869         /* Assign an unused board number */
4870         phba->brd_no = lpfc_get_instance();
4871         if (phba->brd_no < 0) {
4872                 kfree(phba);
4873                 return NULL;
4874         }
4875
4876         spin_lock_init(&phba->ct_ev_lock);
4877         INIT_LIST_HEAD(&phba->ct_ev_waiters);
4878
4879         return phba;
4880 }
4881
4882 /**
4883  * lpfc_hba_free - Free driver hba data structure with a device.
4884  * @phba: pointer to lpfc hba data structure.
4885  *
4886  * This routine is invoked to free the driver hba data structure with an
4887  * HBA device.
4888  **/
4889 static void
4890 lpfc_hba_free(struct lpfc_hba *phba)
4891 {
4892         /* Release the driver assigned board number */
4893         idr_remove(&lpfc_hba_index, phba->brd_no);
4894
4895         kfree(phba);
4896         return;
4897 }
4898
4899 /**
4900  * lpfc_create_shost - Create hba physical port with associated scsi host.
4901  * @phba: pointer to lpfc hba data structure.
4902  *
4903  * This routine is invoked to create HBA physical port and associate a SCSI
4904  * host with it.
4905  *
4906  * Return codes
4907  *      0 - successful
4908  *      other values - error
4909  **/
4910 static int
4911 lpfc_create_shost(struct lpfc_hba *phba)
4912 {
4913         struct lpfc_vport *vport;
4914         struct Scsi_Host  *shost;
4915
4916         /* Initialize HBA FC structure */
4917         phba->fc_edtov = FF_DEF_EDTOV;
4918         phba->fc_ratov = FF_DEF_RATOV;
4919         phba->fc_altov = FF_DEF_ALTOV;
4920         phba->fc_arbtov = FF_DEF_ARBTOV;
4921
4922         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4923         if (!vport)
4924                 return -ENODEV;
4925
4926         shost = lpfc_shost_from_vport(vport);
4927         phba->pport = vport;
4928         lpfc_debugfs_initialize(vport);
4929         /* Put reference to SCSI host to driver's device private data */
4930         pci_set_drvdata(phba->pcidev, shost);
4931
4932         return 0;
4933 }
4934
4935 /**
4936  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4937  * @phba: pointer to lpfc hba data structure.
4938  *
4939  * This routine is invoked to destroy HBA physical port and the associated
4940  * SCSI host.
4941  **/
4942 static void
4943 lpfc_destroy_shost(struct lpfc_hba *phba)
4944 {
4945         struct lpfc_vport *vport = phba->pport;
4946
4947         /* Destroy physical port that associated with the SCSI host */
4948         destroy_port(vport);
4949
4950         return;
4951 }
4952
4953 /**
4954  * lpfc_setup_bg - Setup Block guard structures and debug areas.
4955  * @phba: pointer to lpfc hba data structure.
4956  * @shost: the shost to be used to detect Block guard settings.
4957  *
4958  * This routine sets up the local Block guard protocol settings for @shost.
4959  * This routine also allocates memory for debugging bg buffers.
4960  **/
4961 static void
4962 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4963 {
4964         int pagecnt = 10;
4965         if (lpfc_prot_mask && lpfc_prot_guard) {
4966                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4967                                 "1478 Registering BlockGuard with the "
4968                                 "SCSI layer\n");
4969                 scsi_host_set_prot(shost, lpfc_prot_mask);
4970                 scsi_host_set_guard(shost, lpfc_prot_guard);
4971         }
4972         if (!_dump_buf_data) {
4973                 while (pagecnt) {
4974                         spin_lock_init(&_dump_buf_lock);
4975                         _dump_buf_data =
4976                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4977                         if (_dump_buf_data) {
4978                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4979                                         "9043 BLKGRD: allocated %d pages for "
4980                                        "_dump_buf_data at 0x%p\n",
4981                                        (1 << pagecnt), _dump_buf_data);
4982                                 _dump_buf_data_order = pagecnt;
4983                                 memset(_dump_buf_data, 0,
4984                                        ((1 << PAGE_SHIFT) << pagecnt));
4985                                 break;
4986                         } else
4987                                 --pagecnt;
4988                 }
4989                 if (!_dump_buf_data_order)
4990                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4991                                 "9044 BLKGRD: ERROR unable to allocate "
4992                                "memory for hexdump\n");
4993         } else
4994                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4995                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4996                        "\n", _dump_buf_data);
4997         if (!_dump_buf_dif) {
4998                 while (pagecnt) {
4999                         _dump_buf_dif =
5000                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5001                         if (_dump_buf_dif) {
5002                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5003                                         "9046 BLKGRD: allocated %d pages for "
5004                                        "_dump_buf_dif at 0x%p\n",
5005                                        (1 << pagecnt), _dump_buf_dif);
5006                                 _dump_buf_dif_order = pagecnt;
5007                                 memset(_dump_buf_dif, 0,
5008                                        ((1 << PAGE_SHIFT) << pagecnt));
5009                                 break;
5010                         } else
5011                                 --pagecnt;
5012                 }
5013                 if (!_dump_buf_dif_order)
5014                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5015                         "9047 BLKGRD: ERROR unable to allocate "
5016                                "memory for hexdump\n");
5017         } else
5018                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5019                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5020                        _dump_buf_dif);
5021 }
5022
5023 /**
5024  * lpfc_post_init_setup - Perform necessary device post initialization setup.
5025  * @phba: pointer to lpfc hba data structure.
5026  *
5027  * This routine is invoked to perform all the necessary post initialization
5028  * setup for the device.
5029  **/
5030 static void
5031 lpfc_post_init_setup(struct lpfc_hba *phba)
5032 {
5033         struct Scsi_Host  *shost;
5034         struct lpfc_adapter_event_header adapter_event;
5035
5036         /* Get the default values for Model Name and Description */
5037         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5038
5039         /*
5040          * hba setup may have changed the hba_queue_depth so we need to
5041          * adjust the value of can_queue.
5042          */
5043         shost = pci_get_drvdata(phba->pcidev);
5044         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5045         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5046                 lpfc_setup_bg(phba, shost);
5047
5048         lpfc_host_attrib_init(shost);
5049
5050         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5051                 spin_lock_irq(shost->host_lock);
5052                 lpfc_poll_start_timer(phba);
5053                 spin_unlock_irq(shost->host_lock);
5054         }
5055
5056         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5057                         "0428 Perform SCSI scan\n");
5058         /* Send board arrival event to upper layer */
5059         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5060         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5061         fc_host_post_vendor_event(shost, fc_get_event_number(),
5062                                   sizeof(adapter_event),
5063                                   (char *) &adapter_event,
5064                                   LPFC_NL_VENDOR_ID);
5065         return;
5066 }
5067
5068 /**
5069  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5070  * @phba: pointer to lpfc hba data structure.
5071  *
5072  * This routine is invoked to set up the PCI device memory space for device
5073  * with SLI-3 interface spec.
5074  *
5075  * Return codes
5076  *      0 - successful
5077  *      other values - error
5078  **/
5079 static int
5080 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5081 {
5082         struct pci_dev *pdev;
5083         unsigned long bar0map_len, bar2map_len;
5084         int i, hbq_count;
5085         void *ptr;
5086         int error = -ENODEV;
5087
5088         /* Obtain PCI device reference */
5089         if (!phba->pcidev)
5090                 return error;
5091         else
5092                 pdev = phba->pcidev;
5093
5094         /* Set the device DMA mask size */
5095         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5096          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5097                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5098                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5099                         return error;
5100                 }
5101         }
5102
5103         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5104          * required by each mapping.
5105          */
5106         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5107         bar0map_len = pci_resource_len(pdev, 0);
5108
5109         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5110         bar2map_len = pci_resource_len(pdev, 2);
5111
5112         /* Map HBA SLIM to a kernel virtual address. */
5113         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5114         if (!phba->slim_memmap_p) {
5115                 dev_printk(KERN_ERR, &pdev->dev,
5116                            "ioremap failed for SLIM memory.\n");
5117                 goto out;
5118         }
5119
5120         /* Map HBA Control Registers to a kernel virtual address. */
5121         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5122         if (!phba->ctrl_regs_memmap_p) {
5123                 dev_printk(KERN_ERR, &pdev->dev,
5124                            "ioremap failed for HBA control registers.\n");
5125                 goto out_iounmap_slim;
5126         }
5127
5128         /* Allocate memory for SLI-2 structures */
5129         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5130                                                SLI2_SLIM_SIZE,
5131                                                &phba->slim2p.phys,
5132                                                GFP_KERNEL);
5133         if (!phba->slim2p.virt)
5134                 goto out_iounmap;
5135
5136         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5137         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5138         phba->mbox_ext = (phba->slim2p.virt +
5139                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5140         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5141         phba->IOCBs = (phba->slim2p.virt +
5142                        offsetof(struct lpfc_sli2_slim, IOCBs));
5143
5144         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5145                                                  lpfc_sli_hbq_size(),
5146                                                  &phba->hbqslimp.phys,
5147                                                  GFP_KERNEL);
5148         if (!phba->hbqslimp.virt)
5149                 goto out_free_slim;
5150
5151         hbq_count = lpfc_sli_hbq_count();
5152         ptr = phba->hbqslimp.virt;
5153         for (i = 0; i < hbq_count; ++i) {
5154                 phba->hbqs[i].hbq_virt = ptr;
5155                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5156                 ptr += (lpfc_hbq_defs[i]->entry_count *
5157                         sizeof(struct lpfc_hbq_entry));
5158         }
5159         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5160         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5161
5162         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5163
5164         INIT_LIST_HEAD(&phba->rb_pend_list);
5165
5166         phba->MBslimaddr = phba->slim_memmap_p;
5167         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5168         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5169         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5170         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5171
5172         return 0;
5173
5174 out_free_slim:
5175         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5176                           phba->slim2p.virt, phba->slim2p.phys);
5177 out_iounmap:
5178         iounmap(phba->ctrl_regs_memmap_p);
5179 out_iounmap_slim:
5180         iounmap(phba->slim_memmap_p);
5181 out:
5182         return error;
5183 }
5184
5185 /**
5186  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5187  * @phba: pointer to lpfc hba data structure.
5188  *
5189  * This routine is invoked to unset the PCI device memory space for device
5190  * with SLI-3 interface spec.
5191  **/
5192 static void
5193 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5194 {
5195         struct pci_dev *pdev;
5196
5197         /* Obtain PCI device reference */
5198         if (!phba->pcidev)
5199                 return;
5200         else
5201                 pdev = phba->pcidev;
5202
5203         /* Free coherent DMA memory allocated */
5204         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5205                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5206         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5207                           phba->slim2p.virt, phba->slim2p.phys);
5208
5209         /* I/O memory unmap */
5210         iounmap(phba->ctrl_regs_memmap_p);
5211         iounmap(phba->slim_memmap_p);
5212
5213         return;
5214 }
5215
5216 /**
5217  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5218  * @phba: pointer to lpfc hba data structure.
5219  *
5220  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5221  * done and check status.
5222  *
5223  * Return 0 if successful, otherwise -ENODEV.
5224  **/
5225 int
5226 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5227 {
5228         struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg;
5229         int i, port_error = -ENODEV;
5230
5231         if (!phba->sli4_hba.STAregaddr)
5232                 return -ENODEV;
5233
5234         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5235         for (i = 0; i < 3000; i++) {
5236                 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
5237                 /* Encounter fatal POST error, break out */
5238                 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
5239                         port_error = -ENODEV;
5240                         break;
5241                 }
5242                 if (LPFC_POST_STAGE_ARMFW_READY ==
5243                     bf_get(lpfc_hst_state_port_status, &sta_reg)) {
5244                         port_error = 0;
5245                         break;
5246                 }
5247                 msleep(10);
5248         }
5249
5250         if (port_error)
5251                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5252                         "1408 Failure HBA POST Status: sta_reg=0x%x, "
5253                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
5254                         "dl=x%x, pstatus=x%x\n", sta_reg.word0,
5255                         bf_get(lpfc_hst_state_perr, &sta_reg),
5256                         bf_get(lpfc_hst_state_sfi, &sta_reg),
5257                         bf_get(lpfc_hst_state_nip, &sta_reg),
5258                         bf_get(lpfc_hst_state_ipc, &sta_reg),
5259                         bf_get(lpfc_hst_state_xrom, &sta_reg),
5260                         bf_get(lpfc_hst_state_dl, &sta_reg),
5261                         bf_get(lpfc_hst_state_port_status, &sta_reg));
5262
5263         /* Log device information */
5264         phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr);
5265         if (bf_get(lpfc_sli_intf_valid,
5266                    &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) {
5267                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5268                                 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5269                                 "FeatureL1=0x%x, FeatureL2=0x%x\n",
5270                                 bf_get(lpfc_sli_intf_sli_family,
5271                                        &phba->sli4_hba.sli_intf),
5272                                 bf_get(lpfc_sli_intf_slirev,
5273                                        &phba->sli4_hba.sli_intf),
5274                                 bf_get(lpfc_sli_intf_featurelevel1,
5275                                        &phba->sli4_hba.sli_intf),
5276                                 bf_get(lpfc_sli_intf_featurelevel2,
5277                                        &phba->sli4_hba.sli_intf));
5278         }
5279         phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr);
5280         phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr);
5281         /* With uncoverable error, log the error message and return error */
5282         uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
5283         uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
5284         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5285             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5286                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5287                                 "1422 HBA Unrecoverable error: "
5288                                 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5289                                 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5290                                 uerrlo_reg.word0, uerrhi_reg.word0,
5291                                 phba->sli4_hba.ue_mask_lo,
5292                                 phba->sli4_hba.ue_mask_hi);
5293                 return -ENODEV;
5294         }
5295
5296         return port_error;
5297 }
5298
5299 /**
5300  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5301  * @phba: pointer to lpfc hba data structure.
5302  *
5303  * This routine is invoked to set up SLI4 BAR0 PCI config space register
5304  * memory map.
5305  **/
5306 static void
5307 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
5308 {
5309         phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5310                                         LPFC_UERR_STATUS_LO;
5311         phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5312                                         LPFC_UERR_STATUS_HI;
5313         phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5314                                         LPFC_UE_MASK_LO;
5315         phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5316                                         LPFC_UE_MASK_HI;
5317         phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p +
5318                                         LPFC_SLI_INTF;
5319 }
5320
5321 /**
5322  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5323  * @phba: pointer to lpfc hba data structure.
5324  *
5325  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5326  * memory map.
5327  **/
5328 static void
5329 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5330 {
5331
5332         phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5333                                     LPFC_HST_STATE;
5334         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5335                                     LPFC_HST_ISR0;
5336         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5337                                     LPFC_HST_IMR0;
5338         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5339                                      LPFC_HST_ISCR0;
5340         return;
5341 }
5342
5343 /**
5344  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5345  * @phba: pointer to lpfc hba data structure.
5346  * @vf: virtual function number
5347  *
5348  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5349  * based on the given viftual function number, @vf.
5350  *
5351  * Return 0 if successful, otherwise -ENODEV.
5352  **/
5353 static int
5354 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5355 {
5356         if (vf > LPFC_VIR_FUNC_MAX)
5357                 return -ENODEV;
5358
5359         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5360                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5361         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5362                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5363         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5364                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5365         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5366                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5367         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5368                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5369         return 0;
5370 }
5371
5372 /**
5373  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5374  * @phba: pointer to lpfc hba data structure.
5375  *
5376  * This routine is invoked to create the bootstrap mailbox
5377  * region consistent with the SLI-4 interface spec.  This
5378  * routine allocates all memory necessary to communicate
5379  * mailbox commands to the port and sets up all alignment
5380  * needs.  No locks are expected to be held when calling
5381  * this routine.
5382  *
5383  * Return codes
5384  *      0 - successful
5385  *      ENOMEM - could not allocated memory.
5386  **/
5387 static int
5388 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5389 {
5390         uint32_t bmbx_size;
5391         struct lpfc_dmabuf *dmabuf;
5392         struct dma_address *dma_address;
5393         uint32_t pa_addr;
5394         uint64_t phys_addr;
5395
5396         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5397         if (!dmabuf)
5398                 return -ENOMEM;
5399
5400         /*
5401          * The bootstrap mailbox region is comprised of 2 parts
5402          * plus an alignment restriction of 16 bytes.
5403          */
5404         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5405         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5406                                           bmbx_size,
5407                                           &dmabuf->phys,
5408                                           GFP_KERNEL);
5409         if (!dmabuf->virt) {
5410                 kfree(dmabuf);
5411                 return -ENOMEM;
5412         }
5413         memset(dmabuf->virt, 0, bmbx_size);
5414
5415         /*
5416          * Initialize the bootstrap mailbox pointers now so that the register
5417          * operations are simple later.  The mailbox dma address is required
5418          * to be 16-byte aligned.  Also align the virtual memory as each
5419          * maibox is copied into the bmbx mailbox region before issuing the
5420          * command to the port.
5421          */
5422         phba->sli4_hba.bmbx.dmabuf = dmabuf;
5423         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5424
5425         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5426                                               LPFC_ALIGN_16_BYTE);
5427         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5428                                               LPFC_ALIGN_16_BYTE);
5429
5430         /*
5431          * Set the high and low physical addresses now.  The SLI4 alignment
5432          * requirement is 16 bytes and the mailbox is posted to the port
5433          * as two 30-bit addresses.  The other data is a bit marking whether
5434          * the 30-bit address is the high or low address.
5435          * Upcast bmbx aphys to 64bits so shift instruction compiles
5436          * clean on 32 bit machines.
5437          */
5438         dma_address = &phba->sli4_hba.bmbx.dma_address;
5439         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5440         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5441         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5442                                            LPFC_BMBX_BIT1_ADDR_HI);
5443
5444         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5445         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5446                                            LPFC_BMBX_BIT1_ADDR_LO);
5447         return 0;
5448 }
5449
5450 /**
5451  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5452  * @phba: pointer to lpfc hba data structure.
5453  *
5454  * This routine is invoked to teardown the bootstrap mailbox
5455  * region and release all host resources. This routine requires
5456  * the caller to ensure all mailbox commands recovered, no
5457  * additional mailbox comands are sent, and interrupts are disabled
5458  * before calling this routine.
5459  *
5460  **/
5461 static void
5462 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5463 {
5464         dma_free_coherent(&phba->pcidev->dev,
5465                           phba->sli4_hba.bmbx.bmbx_size,
5466                           phba->sli4_hba.bmbx.dmabuf->virt,
5467                           phba->sli4_hba.bmbx.dmabuf->phys);
5468
5469         kfree(phba->sli4_hba.bmbx.dmabuf);
5470         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5471 }
5472
5473 /**
5474  * lpfc_sli4_read_config - Get the config parameters.
5475  * @phba: pointer to lpfc hba data structure.
5476  *
5477  * This routine is invoked to read the configuration parameters from the HBA.
5478  * The configuration parameters are used to set the base and maximum values
5479  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5480  * allocation for the port.
5481  *
5482  * Return codes
5483  *      0 - successful
5484  *      ENOMEM - No availble memory
5485  *      EIO - The mailbox failed to complete successfully.
5486  **/
5487 static int
5488 lpfc_sli4_read_config(struct lpfc_hba *phba)
5489 {
5490         LPFC_MBOXQ_t *pmb;
5491         struct lpfc_mbx_read_config *rd_config;
5492         uint32_t rc = 0;
5493
5494         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5495         if (!pmb) {
5496                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5497                                 "2011 Unable to allocate memory for issuing "
5498                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5499                 return -ENOMEM;
5500         }
5501
5502         lpfc_read_config(phba, pmb);
5503
5504         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5505         if (rc != MBX_SUCCESS) {
5506                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5507                         "2012 Mailbox failed , mbxCmd x%x "
5508                         "READ_CONFIG, mbxStatus x%x\n",
5509                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
5510                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
5511                 rc = -EIO;
5512         } else {
5513                 rd_config = &pmb->u.mqe.un.rd_config;
5514                 phba->sli4_hba.max_cfg_param.max_xri =
5515                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5516                 phba->sli4_hba.max_cfg_param.xri_base =
5517                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5518                 phba->sli4_hba.max_cfg_param.max_vpi =
5519                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5520                 phba->sli4_hba.max_cfg_param.vpi_base =
5521                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5522                 phba->sli4_hba.max_cfg_param.max_rpi =
5523                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5524                 phba->sli4_hba.max_cfg_param.rpi_base =
5525                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5526                 phba->sli4_hba.max_cfg_param.max_vfi =
5527                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5528                 phba->sli4_hba.max_cfg_param.vfi_base =
5529                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5530                 phba->sli4_hba.max_cfg_param.max_fcfi =
5531                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5532                 phba->sli4_hba.max_cfg_param.fcfi_base =
5533                         bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5534                 phba->sli4_hba.max_cfg_param.max_eq =
5535                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5536                 phba->sli4_hba.max_cfg_param.max_rq =
5537                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5538                 phba->sli4_hba.max_cfg_param.max_wq =
5539                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5540                 phba->sli4_hba.max_cfg_param.max_cq =
5541                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5542                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5543                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5544                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5545                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5546                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5547                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5548                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5549                 phba->max_vports = phba->max_vpi;
5550                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5551                                 "2003 cfg params XRI(B:%d M:%d), "
5552                                 "VPI(B:%d M:%d) "
5553                                 "VFI(B:%d M:%d) "
5554                                 "RPI(B:%d M:%d) "
5555                                 "FCFI(B:%d M:%d)\n",
5556                                 phba->sli4_hba.max_cfg_param.xri_base,
5557                                 phba->sli4_hba.max_cfg_param.max_xri,
5558                                 phba->sli4_hba.max_cfg_param.vpi_base,
5559                                 phba->sli4_hba.max_cfg_param.max_vpi,
5560                                 phba->sli4_hba.max_cfg_param.vfi_base,
5561                                 phba->sli4_hba.max_cfg_param.max_vfi,
5562                                 phba->sli4_hba.max_cfg_param.rpi_base,
5563                                 phba->sli4_hba.max_cfg_param.max_rpi,
5564                                 phba->sli4_hba.max_cfg_param.fcfi_base,
5565                                 phba->sli4_hba.max_cfg_param.max_fcfi);
5566         }
5567         mempool_free(pmb, phba->mbox_mem_pool);
5568
5569         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
5570         if (phba->cfg_hba_queue_depth >
5571                 (phba->sli4_hba.max_cfg_param.max_xri -
5572                         lpfc_sli4_get_els_iocb_cnt(phba)))
5573                 phba->cfg_hba_queue_depth =
5574                         phba->sli4_hba.max_cfg_param.max_xri -
5575                                 lpfc_sli4_get_els_iocb_cnt(phba);
5576         return rc;
5577 }
5578
5579 /**
5580  * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5581  * @phba: pointer to lpfc hba data structure.
5582  *
5583  * This routine is invoked to setup the host-side endian order to the
5584  * HBA consistent with the SLI-4 interface spec.
5585  *
5586  * Return codes
5587  *      0 - successful
5588  *      ENOMEM - No availble memory
5589  *      EIO - The mailbox failed to complete successfully.
5590  **/
5591 static int
5592 lpfc_setup_endian_order(struct lpfc_hba *phba)
5593 {
5594         LPFC_MBOXQ_t *mboxq;
5595         uint32_t rc = 0;
5596         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5597                                       HOST_ENDIAN_HIGH_WORD1};
5598
5599         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5600         if (!mboxq) {
5601                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5602                                 "0492 Unable to allocate memory for issuing "
5603                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5604                 return -ENOMEM;
5605         }
5606
5607         /*
5608          * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5609          * words to contain special data values and no other data.
5610          */
5611         memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5612         memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5613         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5614         if (rc != MBX_SUCCESS) {
5615                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5616                                 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5617                                 "status x%x\n",
5618                                 rc);
5619                 rc = -EIO;
5620         }
5621
5622         mempool_free(mboxq, phba->mbox_mem_pool);
5623         return rc;
5624 }
5625
5626 /**
5627  * lpfc_sli4_queue_create - Create all the SLI4 queues
5628  * @phba: pointer to lpfc hba data structure.
5629  *
5630  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5631  * operation. For each SLI4 queue type, the parameters such as queue entry
5632  * count (queue depth) shall be taken from the module parameter. For now,
5633  * we just use some constant number as place holder.
5634  *
5635  * Return codes
5636  *      0 - successful
5637  *      ENOMEM - No availble memory
5638  *      EIO - The mailbox failed to complete successfully.
5639  **/
5640 static int
5641 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5642 {
5643         struct lpfc_queue *qdesc;
5644         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5645         int cfg_fcp_wq_count;
5646         int cfg_fcp_eq_count;
5647
5648         /*
5649          * Sanity check for confiugred queue parameters against the run-time
5650          * device parameters
5651          */
5652
5653         /* Sanity check on FCP fast-path WQ parameters */
5654         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5655         if (cfg_fcp_wq_count >
5656             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5657                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5658                                    LPFC_SP_WQN_DEF;
5659                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5660                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5661                                         "2581 Not enough WQs (%d) from "
5662                                         "the pci function for supporting "
5663                                         "FCP WQs (%d)\n",
5664                                         phba->sli4_hba.max_cfg_param.max_wq,
5665                                         phba->cfg_fcp_wq_count);
5666                         goto out_error;
5667                 }
5668                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5669                                 "2582 Not enough WQs (%d) from the pci "
5670                                 "function for supporting the requested "
5671                                 "FCP WQs (%d), the actual FCP WQs can "
5672                                 "be supported: %d\n",
5673                                 phba->sli4_hba.max_cfg_param.max_wq,
5674                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5675         }
5676         /* The actual number of FCP work queues adopted */
5677         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5678
5679         /* Sanity check on FCP fast-path EQ parameters */
5680         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5681         if (cfg_fcp_eq_count >
5682             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5683                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5684                                    LPFC_SP_EQN_DEF;
5685                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5686                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5687                                         "2574 Not enough EQs (%d) from the "
5688                                         "pci function for supporting FCP "
5689                                         "EQs (%d)\n",
5690                                         phba->sli4_hba.max_cfg_param.max_eq,
5691                                         phba->cfg_fcp_eq_count);
5692                         goto out_error;
5693                 }
5694                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5695                                 "2575 Not enough EQs (%d) from the pci "
5696                                 "function for supporting the requested "
5697                                 "FCP EQs (%d), the actual FCP EQs can "
5698                                 "be supported: %d\n",
5699                                 phba->sli4_hba.max_cfg_param.max_eq,
5700                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5701         }
5702         /* It does not make sense to have more EQs than WQs */
5703         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5704                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5705                                 "2593 The FCP EQ count(%d) cannot be greater "
5706                                 "than the FCP WQ count(%d), limiting the "
5707                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5708                                 phba->cfg_fcp_wq_count,
5709                                 phba->cfg_fcp_wq_count);
5710                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5711         }
5712         /* The actual number of FCP event queues adopted */
5713         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5714         /* The overall number of event queues used */
5715         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5716
5717         /*
5718          * Create Event Queues (EQs)
5719          */
5720
5721         /* Get EQ depth from module parameter, fake the default for now */
5722         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5723         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5724
5725         /* Create slow path event queue */
5726         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5727                                       phba->sli4_hba.eq_ecount);
5728         if (!qdesc) {
5729                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5730                                 "0496 Failed allocate slow-path EQ\n");
5731                 goto out_error;
5732         }
5733         phba->sli4_hba.sp_eq = qdesc;
5734
5735         /* Create fast-path FCP Event Queue(s) */
5736         phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5737                                phba->cfg_fcp_eq_count), GFP_KERNEL);
5738         if (!phba->sli4_hba.fp_eq) {
5739                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5740                                 "2576 Failed allocate memory for fast-path "
5741                                 "EQ record array\n");
5742                 goto out_free_sp_eq;
5743         }
5744         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5745                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5746                                               phba->sli4_hba.eq_ecount);
5747                 if (!qdesc) {
5748                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5749                                         "0497 Failed allocate fast-path EQ\n");
5750                         goto out_free_fp_eq;
5751                 }
5752                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5753         }
5754
5755         /*
5756          * Create Complete Queues (CQs)
5757          */
5758
5759         /* Get CQ depth from module parameter, fake the default for now */
5760         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5761         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5762
5763         /* Create slow-path Mailbox Command Complete Queue */
5764         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5765                                       phba->sli4_hba.cq_ecount);
5766         if (!qdesc) {
5767                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5768                                 "0500 Failed allocate slow-path mailbox CQ\n");
5769                 goto out_free_fp_eq;
5770         }
5771         phba->sli4_hba.mbx_cq = qdesc;
5772
5773         /* Create slow-path ELS Complete Queue */
5774         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5775                                       phba->sli4_hba.cq_ecount);
5776         if (!qdesc) {
5777                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5778                                 "0501 Failed allocate slow-path ELS CQ\n");
5779                 goto out_free_mbx_cq;
5780         }
5781         phba->sli4_hba.els_cq = qdesc;
5782
5783
5784         /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5785         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5786                                 phba->cfg_fcp_eq_count), GFP_KERNEL);
5787         if (!phba->sli4_hba.fcp_cq) {
5788                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5789                                 "2577 Failed allocate memory for fast-path "
5790                                 "CQ record array\n");
5791                 goto out_free_els_cq;
5792         }
5793         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5794                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5795                                               phba->sli4_hba.cq_ecount);
5796                 if (!qdesc) {
5797                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5798                                         "0499 Failed allocate fast-path FCP "
5799                                         "CQ (%d)\n", fcp_cqidx);
5800                         goto out_free_fcp_cq;
5801                 }
5802                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5803         }
5804
5805         /* Create Mailbox Command Queue */
5806         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5807         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5808
5809         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5810                                       phba->sli4_hba.mq_ecount);
5811         if (!qdesc) {
5812                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5813                                 "0505 Failed allocate slow-path MQ\n");
5814                 goto out_free_fcp_cq;
5815         }
5816         phba->sli4_hba.mbx_wq = qdesc;
5817
5818         /*
5819          * Create all the Work Queues (WQs)
5820          */
5821         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5822         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5823
5824         /* Create slow-path ELS Work Queue */
5825         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5826                                       phba->sli4_hba.wq_ecount);
5827         if (!qdesc) {
5828                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5829                                 "0504 Failed allocate slow-path ELS WQ\n");
5830                 goto out_free_mbx_wq;
5831         }
5832         phba->sli4_hba.els_wq = qdesc;
5833
5834         /* Create fast-path FCP Work Queue(s) */
5835         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5836                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
5837         if (!phba->sli4_hba.fcp_wq) {
5838                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5839                                 "2578 Failed allocate memory for fast-path "
5840                                 "WQ record array\n");
5841                 goto out_free_els_wq;
5842         }
5843         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5844                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5845                                               phba->sli4_hba.wq_ecount);
5846                 if (!qdesc) {
5847                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5848                                         "0503 Failed allocate fast-path FCP "
5849                                         "WQ (%d)\n", fcp_wqidx);
5850                         goto out_free_fcp_wq;
5851                 }
5852                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5853         }
5854
5855         /*
5856          * Create Receive Queue (RQ)
5857          */
5858         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5859         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5860
5861         /* Create Receive Queue for header */
5862         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5863                                       phba->sli4_hba.rq_ecount);
5864         if (!qdesc) {
5865                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5866                                 "0506 Failed allocate receive HRQ\n");
5867                 goto out_free_fcp_wq;
5868         }
5869         phba->sli4_hba.hdr_rq = qdesc;
5870
5871         /* Create Receive Queue for data */
5872         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5873                                       phba->sli4_hba.rq_ecount);
5874         if (!qdesc) {
5875                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5876                                 "0507 Failed allocate receive DRQ\n");
5877                 goto out_free_hdr_rq;
5878         }
5879         phba->sli4_hba.dat_rq = qdesc;
5880
5881         return 0;
5882
5883 out_free_hdr_rq:
5884         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5885         phba->sli4_hba.hdr_rq = NULL;
5886 out_free_fcp_wq:
5887         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5888                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5889                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5890         }
5891         kfree(phba->sli4_hba.fcp_wq);
5892 out_free_els_wq:
5893         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5894         phba->sli4_hba.els_wq = NULL;
5895 out_free_mbx_wq:
5896         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5897         phba->sli4_hba.mbx_wq = NULL;
5898 out_free_fcp_cq:
5899         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5900                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5901                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5902         }
5903         kfree(phba->sli4_hba.fcp_cq);
5904 out_free_els_cq:
5905         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5906         phba->sli4_hba.els_cq = NULL;
5907 out_free_mbx_cq:
5908         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5909         phba->sli4_hba.mbx_cq = NULL;
5910 out_free_fp_eq:
5911         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5912                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5913                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5914         }
5915         kfree(phba->sli4_hba.fp_eq);
5916 out_free_sp_eq:
5917         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5918         phba->sli4_hba.sp_eq = NULL;
5919 out_error:
5920         return -ENOMEM;
5921 }
5922
5923 /**
5924  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5925  * @phba: pointer to lpfc hba data structure.
5926  *
5927  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5928  * operation.
5929  *
5930  * Return codes
5931  *      0 - successful
5932  *      ENOMEM - No availble memory
5933  *      EIO - The mailbox failed to complete successfully.
5934  **/
5935 static void
5936 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5937 {
5938         int fcp_qidx;
5939
5940         /* Release mailbox command work queue */
5941         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5942         phba->sli4_hba.mbx_wq = NULL;
5943
5944         /* Release ELS work queue */
5945         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5946         phba->sli4_hba.els_wq = NULL;
5947
5948         /* Release FCP work queue */
5949         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5950                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5951         kfree(phba->sli4_hba.fcp_wq);
5952         phba->sli4_hba.fcp_wq = NULL;
5953
5954         /* Release unsolicited receive queue */
5955         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5956         phba->sli4_hba.hdr_rq = NULL;
5957         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5958         phba->sli4_hba.dat_rq = NULL;
5959
5960         /* Release ELS complete queue */
5961         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5962         phba->sli4_hba.els_cq = NULL;
5963
5964         /* Release mailbox command complete queue */
5965         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5966         phba->sli4_hba.mbx_cq = NULL;
5967
5968         /* Release FCP response complete queue */
5969         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5970                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5971         kfree(phba->sli4_hba.fcp_cq);
5972         phba->sli4_hba.fcp_cq = NULL;
5973
5974         /* Release fast-path event queue */
5975         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5976                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5977         kfree(phba->sli4_hba.fp_eq);
5978         phba->sli4_hba.fp_eq = NULL;
5979
5980         /* Release slow-path event queue */
5981         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5982         phba->sli4_hba.sp_eq = NULL;
5983
5984         return;
5985 }
5986
5987 /**
5988  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5989  * @phba: pointer to lpfc hba data structure.
5990  *
5991  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5992  * operation.
5993  *
5994  * Return codes
5995  *      0 - successful
5996  *      ENOMEM - No availble memory
5997  *      EIO - The mailbox failed to complete successfully.
5998  **/
5999 int
6000 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6001 {
6002         int rc = -ENOMEM;
6003         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6004         int fcp_cq_index = 0;
6005
6006         /*
6007          * Set up Event Queues (EQs)
6008          */
6009
6010         /* Set up slow-path event queue */
6011         if (!phba->sli4_hba.sp_eq) {
6012                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6013                                 "0520 Slow-path EQ not allocated\n");
6014                 goto out_error;
6015         }
6016         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6017                             LPFC_SP_DEF_IMAX);
6018         if (rc) {
6019                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6020                                 "0521 Failed setup of slow-path EQ: "
6021                                 "rc = 0x%x\n", rc);
6022                 goto out_error;
6023         }
6024         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6025                         "2583 Slow-path EQ setup: queue-id=%d\n",
6026                         phba->sli4_hba.sp_eq->queue_id);
6027
6028         /* Set up fast-path event queue */
6029         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6030                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6031                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6032                                         "0522 Fast-path EQ (%d) not "
6033                                         "allocated\n", fcp_eqidx);
6034                         goto out_destroy_fp_eq;
6035                 }
6036                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6037                                     phba->cfg_fcp_imax);
6038                 if (rc) {
6039                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6040                                         "0523 Failed setup of fast-path EQ "
6041                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6042                         goto out_destroy_fp_eq;
6043                 }
6044                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6045                                 "2584 Fast-path EQ setup: "
6046                                 "queue[%d]-id=%d\n", fcp_eqidx,
6047                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6048         }
6049
6050         /*
6051          * Set up Complete Queues (CQs)
6052          */
6053
6054         /* Set up slow-path MBOX Complete Queue as the first CQ */
6055         if (!phba->sli4_hba.mbx_cq) {
6056                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6057                                 "0528 Mailbox CQ not allocated\n");
6058                 goto out_destroy_fp_eq;
6059         }
6060         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6061                             LPFC_MCQ, LPFC_MBOX);
6062         if (rc) {
6063                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6064                                 "0529 Failed setup of slow-path mailbox CQ: "
6065                                 "rc = 0x%x\n", rc);
6066                 goto out_destroy_fp_eq;
6067         }
6068         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6069                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6070                         phba->sli4_hba.mbx_cq->queue_id,
6071                         phba->sli4_hba.sp_eq->queue_id);
6072
6073         /* Set up slow-path ELS Complete Queue */
6074         if (!phba->sli4_hba.els_cq) {
6075                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6076                                 "0530 ELS CQ not allocated\n");
6077                 goto out_destroy_mbx_cq;
6078         }
6079         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6080                             LPFC_WCQ, LPFC_ELS);
6081         if (rc) {
6082                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6083                                 "0531 Failed setup of slow-path ELS CQ: "
6084                                 "rc = 0x%x\n", rc);
6085                 goto out_destroy_mbx_cq;
6086         }
6087         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6088                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6089                         phba->sli4_hba.els_cq->queue_id,
6090                         phba->sli4_hba.sp_eq->queue_id);
6091
6092         /* Set up fast-path FCP Response Complete Queue */
6093         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6094                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6095                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6096                                         "0526 Fast-path FCP CQ (%d) not "
6097                                         "allocated\n", fcp_cqidx);
6098                         goto out_destroy_fcp_cq;
6099                 }
6100                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6101                                     phba->sli4_hba.fp_eq[fcp_cqidx],
6102                                     LPFC_WCQ, LPFC_FCP);
6103                 if (rc) {
6104                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6105                                         "0527 Failed setup of fast-path FCP "
6106                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6107                         goto out_destroy_fcp_cq;
6108                 }
6109                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6110                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6111                                 "parent eq[%d]-id=%d\n",
6112                                 fcp_cqidx,
6113                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6114                                 fcp_cqidx,
6115                                 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
6116         }
6117
6118         /*
6119          * Set up all the Work Queues (WQs)
6120          */
6121
6122         /* Set up Mailbox Command Queue */
6123         if (!phba->sli4_hba.mbx_wq) {
6124                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6125                                 "0538 Slow-path MQ not allocated\n");
6126                 goto out_destroy_fcp_cq;
6127         }
6128         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6129                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
6130         if (rc) {
6131                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6132                                 "0539 Failed setup of slow-path MQ: "
6133                                 "rc = 0x%x\n", rc);
6134                 goto out_destroy_fcp_cq;
6135         }
6136         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6137                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6138                         phba->sli4_hba.mbx_wq->queue_id,
6139                         phba->sli4_hba.mbx_cq->queue_id);
6140
6141         /* Set up slow-path ELS Work Queue */
6142         if (!phba->sli4_hba.els_wq) {
6143                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6144                                 "0536 Slow-path ELS WQ not allocated\n");
6145                 goto out_destroy_mbx_wq;
6146         }
6147         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6148                             phba->sli4_hba.els_cq, LPFC_ELS);
6149         if (rc) {
6150                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6151                                 "0537 Failed setup of slow-path ELS WQ: "
6152                                 "rc = 0x%x\n", rc);
6153                 goto out_destroy_mbx_wq;
6154         }
6155         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6156                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6157                         phba->sli4_hba.els_wq->queue_id,
6158                         phba->sli4_hba.els_cq->queue_id);
6159
6160         /* Set up fast-path FCP Work Queue */
6161         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6162                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6163                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6164                                         "0534 Fast-path FCP WQ (%d) not "
6165                                         "allocated\n", fcp_wqidx);
6166                         goto out_destroy_fcp_wq;
6167                 }
6168                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6169                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
6170                                     LPFC_FCP);
6171                 if (rc) {
6172                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6173                                         "0535 Failed setup of fast-path FCP "
6174                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6175                         goto out_destroy_fcp_wq;
6176                 }
6177                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6178                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
6179                                 "parent cq[%d]-id=%d\n",
6180                                 fcp_wqidx,
6181                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6182                                 fcp_cq_index,
6183                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6184                 /* Round robin FCP Work Queue's Completion Queue assignment */
6185                 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
6186         }
6187
6188         /*
6189          * Create Receive Queue (RQ)
6190          */
6191         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6192                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6193                                 "0540 Receive Queue not allocated\n");
6194                 goto out_destroy_fcp_wq;
6195         }
6196         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6197                             phba->sli4_hba.els_cq, LPFC_USOL);
6198         if (rc) {
6199                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6200                                 "0541 Failed setup of Receive Queue: "
6201                                 "rc = 0x%x\n", rc);
6202                 goto out_destroy_fcp_wq;
6203         }
6204         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6205                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6206                         "parent cq-id=%d\n",
6207                         phba->sli4_hba.hdr_rq->queue_id,
6208                         phba->sli4_hba.dat_rq->queue_id,
6209                         phba->sli4_hba.els_cq->queue_id);
6210         return 0;
6211
6212 out_destroy_fcp_wq:
6213         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6214                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6215         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6216 out_destroy_mbx_wq:
6217         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6218 out_destroy_fcp_cq:
6219         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6220                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6221         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6222 out_destroy_mbx_cq:
6223         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6224 out_destroy_fp_eq:
6225         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6226                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6227         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6228 out_error:
6229         return rc;
6230 }
6231
6232 /**
6233  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6234  * @phba: pointer to lpfc hba data structure.
6235  *
6236  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6237  * operation.
6238  *
6239  * Return codes
6240  *      0 - successful
6241  *      ENOMEM - No availble memory
6242  *      EIO - The mailbox failed to complete successfully.
6243  **/
6244 void
6245 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6246 {
6247         int fcp_qidx;
6248
6249         /* Unset mailbox command work queue */
6250         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6251         /* Unset ELS work queue */
6252         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6253         /* Unset unsolicited receive queue */
6254         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6255         /* Unset FCP work queue */
6256         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6257                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6258         /* Unset mailbox command complete queue */
6259         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6260         /* Unset ELS complete queue */
6261         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6262         /* Unset FCP response complete queue */
6263         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6264                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6265         /* Unset fast-path event queue */
6266         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6267                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6268         /* Unset slow-path event queue */
6269         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6270 }
6271
6272 /**
6273  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6274  * @phba: pointer to lpfc hba data structure.
6275  *
6276  * This routine is invoked to allocate and set up a pool of completion queue
6277  * events. The body of the completion queue event is a completion queue entry
6278  * CQE. For now, this pool is used for the interrupt service routine to queue
6279  * the following HBA completion queue events for the worker thread to process:
6280  *   - Mailbox asynchronous events
6281  *   - Receive queue completion unsolicited events
6282  * Later, this can be used for all the slow-path events.
6283  *
6284  * Return codes
6285  *      0 - successful
6286  *      -ENOMEM - No availble memory
6287  **/
6288 static int
6289 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6290 {
6291         struct lpfc_cq_event *cq_event;
6292         int i;
6293
6294         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6295                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6296                 if (!cq_event)
6297                         goto out_pool_create_fail;
6298                 list_add_tail(&cq_event->list,
6299                               &phba->sli4_hba.sp_cqe_event_pool);
6300         }
6301         return 0;
6302
6303 out_pool_create_fail:
6304         lpfc_sli4_cq_event_pool_destroy(phba);
6305         return -ENOMEM;
6306 }
6307
6308 /**
6309  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6310  * @phba: pointer to lpfc hba data structure.
6311  *
6312  * This routine is invoked to free the pool of completion queue events at
6313  * driver unload time. Note that, it is the responsibility of the driver
6314  * cleanup routine to free all the outstanding completion-queue events
6315  * allocated from this pool back into the pool before invoking this routine
6316  * to destroy the pool.
6317  **/
6318 static void
6319 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6320 {
6321         struct lpfc_cq_event *cq_event, *next_cq_event;
6322
6323         list_for_each_entry_safe(cq_event, next_cq_event,
6324                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
6325                 list_del(&cq_event->list);
6326                 kfree(cq_event);
6327         }
6328 }
6329
6330 /**
6331  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6332  * @phba: pointer to lpfc hba data structure.
6333  *
6334  * This routine is the lock free version of the API invoked to allocate a
6335  * completion-queue event from the free pool.
6336  *
6337  * Return: Pointer to the newly allocated completion-queue event if successful
6338  *         NULL otherwise.
6339  **/
6340 struct lpfc_cq_event *
6341 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6342 {
6343         struct lpfc_cq_event *cq_event = NULL;
6344
6345         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6346                          struct lpfc_cq_event, list);
6347         return cq_event;
6348 }
6349
6350 /**
6351  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6352  * @phba: pointer to lpfc hba data structure.
6353  *
6354  * This routine is the lock version of the API invoked to allocate a
6355  * completion-queue event from the free pool.
6356  *
6357  * Return: Pointer to the newly allocated completion-queue event if successful
6358  *         NULL otherwise.
6359  **/
6360 struct lpfc_cq_event *
6361 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6362 {
6363         struct lpfc_cq_event *cq_event;
6364         unsigned long iflags;
6365
6366         spin_lock_irqsave(&phba->hbalock, iflags);
6367         cq_event = __lpfc_sli4_cq_event_alloc(phba);
6368         spin_unlock_irqrestore(&phba->hbalock, iflags);
6369         return cq_event;
6370 }
6371
6372 /**
6373  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6374  * @phba: pointer to lpfc hba data structure.
6375  * @cq_event: pointer to the completion queue event to be freed.
6376  *
6377  * This routine is the lock free version of the API invoked to release a
6378  * completion-queue event back into the free pool.
6379  **/
6380 void
6381 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6382                              struct lpfc_cq_event *cq_event)
6383 {
6384         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6385 }
6386
6387 /**
6388  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6389  * @phba: pointer to lpfc hba data structure.
6390  * @cq_event: pointer to the completion queue event to be freed.
6391  *
6392  * This routine is the lock version of the API invoked to release a
6393  * completion-queue event back into the free pool.
6394  **/
6395 void
6396 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6397                            struct lpfc_cq_event *cq_event)
6398 {
6399         unsigned long iflags;
6400         spin_lock_irqsave(&phba->hbalock, iflags);
6401         __lpfc_sli4_cq_event_release(phba, cq_event);
6402         spin_unlock_irqrestore(&phba->hbalock, iflags);
6403 }
6404
6405 /**
6406  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6407  * @phba: pointer to lpfc hba data structure.
6408  *
6409  * This routine is to free all the pending completion-queue events to the
6410  * back into the free pool for device reset.
6411  **/
6412 static void
6413 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6414 {
6415         LIST_HEAD(cqelist);
6416         struct lpfc_cq_event *cqe;
6417         unsigned long iflags;
6418
6419         /* Retrieve all the pending WCQEs from pending WCQE lists */
6420         spin_lock_irqsave(&phba->hbalock, iflags);
6421         /* Pending FCP XRI abort events */
6422         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6423                          &cqelist);
6424         /* Pending ELS XRI abort events */
6425         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6426                          &cqelist);
6427         /* Pending asynnc events */
6428         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6429                          &cqelist);
6430         spin_unlock_irqrestore(&phba->hbalock, iflags);
6431
6432         while (!list_empty(&cqelist)) {
6433                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6434                 lpfc_sli4_cq_event_release(phba, cqe);
6435         }
6436 }
6437
6438 /**
6439  * lpfc_pci_function_reset - Reset pci function.
6440  * @phba: pointer to lpfc hba data structure.
6441  *
6442  * This routine is invoked to request a PCI function reset. It will destroys
6443  * all resources assigned to the PCI function which originates this request.
6444  *
6445  * Return codes
6446  *      0 - successful
6447  *      ENOMEM - No availble memory
6448  *      EIO - The mailbox failed to complete successfully.
6449  **/
6450 int
6451 lpfc_pci_function_reset(struct lpfc_hba *phba)
6452 {
6453         LPFC_MBOXQ_t *mboxq;
6454         uint32_t rc = 0;
6455         uint32_t shdr_status, shdr_add_status;
6456         union lpfc_sli4_cfg_shdr *shdr;
6457
6458         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6459         if (!mboxq) {
6460                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6461                                 "0494 Unable to allocate memory for issuing "
6462                                 "SLI_FUNCTION_RESET mailbox command\n");
6463                 return -ENOMEM;
6464         }
6465
6466         /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6467         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6468                          LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6469                          LPFC_SLI4_MBX_EMBED);
6470         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6471         shdr = (union lpfc_sli4_cfg_shdr *)
6472                 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6473         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6474         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6475         if (rc != MBX_TIMEOUT)
6476                 mempool_free(mboxq, phba->mbox_mem_pool);
6477         if (shdr_status || shdr_add_status || rc) {
6478                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6479                                 "0495 SLI_FUNCTION_RESET mailbox failed with "
6480                                 "status x%x add_status x%x, mbx status x%x\n",
6481                                 shdr_status, shdr_add_status, rc);
6482                 rc = -ENXIO;
6483         }
6484         return rc;
6485 }
6486
6487 /**
6488  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6489  * @phba: pointer to lpfc hba data structure.
6490  * @cnt: number of nop mailbox commands to send.
6491  *
6492  * This routine is invoked to send a number @cnt of NOP mailbox command and
6493  * wait for each command to complete.
6494  *
6495  * Return: the number of NOP mailbox command completed.
6496  **/
6497 static int
6498 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6499 {
6500         LPFC_MBOXQ_t *mboxq;
6501         int length, cmdsent;
6502         uint32_t mbox_tmo;
6503         uint32_t rc = 0;
6504         uint32_t shdr_status, shdr_add_status;
6505         union lpfc_sli4_cfg_shdr *shdr;
6506
6507         if (cnt == 0) {
6508                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6509                                 "2518 Requested to send 0 NOP mailbox cmd\n");
6510                 return cnt;
6511         }
6512
6513         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6514         if (!mboxq) {
6515                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6516                                 "2519 Unable to allocate memory for issuing "
6517                                 "NOP mailbox command\n");
6518                 return 0;
6519         }
6520
6521         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6522         length = (sizeof(struct lpfc_mbx_nop) -
6523                   sizeof(struct lpfc_sli4_cfg_mhdr));
6524         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6525                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6526
6527         mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6528         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6529                 if (!phba->sli4_hba.intr_enable)
6530                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6531                 else
6532                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6533                 if (rc == MBX_TIMEOUT)
6534                         break;
6535                 /* Check return status */
6536                 shdr = (union lpfc_sli4_cfg_shdr *)
6537                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6538                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6539                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6540                                          &shdr->response);
6541                 if (shdr_status || shdr_add_status || rc) {
6542                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6543                                         "2520 NOP mailbox command failed "
6544                                         "status x%x add_status x%x mbx "
6545                                         "status x%x\n", shdr_status,
6546                                         shdr_add_status, rc);
6547                         break;
6548                 }
6549         }
6550
6551         if (rc != MBX_TIMEOUT)
6552                 mempool_free(mboxq, phba->mbox_mem_pool);
6553
6554         return cmdsent;
6555 }
6556
6557 /**
6558  * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
6559  * @phba: pointer to lpfc hba data structure.
6560  * @fcfi: fcf index.
6561  *
6562  * This routine is invoked to unregister a FCFI from device.
6563  **/
6564 void
6565 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
6566 {
6567         LPFC_MBOXQ_t *mbox;
6568         uint32_t mbox_tmo;
6569         int rc;
6570         unsigned long flags;
6571
6572         mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6573
6574         if (!mbox)
6575                 return;
6576
6577         lpfc_unreg_fcfi(mbox, fcfi);
6578
6579         if (!phba->sli4_hba.intr_enable)
6580                 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6581         else {
6582                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6583                 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6584         }
6585         if (rc != MBX_TIMEOUT)
6586                 mempool_free(mbox, phba->mbox_mem_pool);
6587         if (rc != MBX_SUCCESS)
6588                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6589                                 "2517 Unregister FCFI command failed "
6590                                 "status %d, mbxStatus x%x\n", rc,
6591                                 bf_get(lpfc_mqe_status, &mbox->u.mqe));
6592         else {
6593                 spin_lock_irqsave(&phba->hbalock, flags);
6594                 /* Mark the FCFI is no longer registered */
6595                 phba->fcf.fcf_flag &=
6596                         ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_SCAN_DONE);
6597                 spin_unlock_irqrestore(&phba->hbalock, flags);
6598         }
6599 }
6600
6601 /**
6602  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6603  * @phba: pointer to lpfc hba data structure.
6604  *
6605  * This routine is invoked to set up the PCI device memory space for device
6606  * with SLI-4 interface spec.
6607  *
6608  * Return codes
6609  *      0 - successful
6610  *      other values - error
6611  **/
6612 static int
6613 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6614 {
6615         struct pci_dev *pdev;
6616         unsigned long bar0map_len, bar1map_len, bar2map_len;
6617         int error = -ENODEV;
6618
6619         /* Obtain PCI device reference */
6620         if (!phba->pcidev)
6621                 return error;
6622         else
6623                 pdev = phba->pcidev;
6624
6625         /* Set the device DMA mask size */
6626         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6627          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6628                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6629                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6630                         return error;
6631                 }
6632         }
6633
6634         /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6635          * number of bytes required by each mapping. They are actually
6636          * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6637          */
6638         if (pci_resource_start(pdev, 0)) {
6639                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6640                 bar0map_len = pci_resource_len(pdev, 0);
6641         } else {
6642                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6643                 bar0map_len = pci_resource_len(pdev, 1);
6644         }
6645         phba->pci_bar1_map = pci_resource_start(pdev, 2);
6646         bar1map_len = pci_resource_len(pdev, 2);
6647
6648         phba->pci_bar2_map = pci_resource_start(pdev, 4);
6649         bar2map_len = pci_resource_len(pdev, 4);
6650
6651         /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6652         phba->sli4_hba.conf_regs_memmap_p =
6653                                 ioremap(phba->pci_bar0_map, bar0map_len);
6654         if (!phba->sli4_hba.conf_regs_memmap_p) {
6655                 dev_printk(KERN_ERR, &pdev->dev,
6656                            "ioremap failed for SLI4 PCI config registers.\n");
6657                 goto out;
6658         }
6659
6660         /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6661         phba->sli4_hba.ctrl_regs_memmap_p =
6662                                 ioremap(phba->pci_bar1_map, bar1map_len);
6663         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
6664                 dev_printk(KERN_ERR, &pdev->dev,
6665                            "ioremap failed for SLI4 HBA control registers.\n");
6666                 goto out_iounmap_conf;
6667         }
6668
6669         /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6670         phba->sli4_hba.drbl_regs_memmap_p =
6671                                 ioremap(phba->pci_bar2_map, bar2map_len);
6672         if (!phba->sli4_hba.drbl_regs_memmap_p) {
6673                 dev_printk(KERN_ERR, &pdev->dev,
6674                            "ioremap failed for SLI4 HBA doorbell registers.\n");
6675                 goto out_iounmap_ctrl;
6676         }
6677
6678         /* Set up BAR0 PCI config space register memory map */
6679         lpfc_sli4_bar0_register_memmap(phba);
6680
6681         /* Set up BAR1 register memory map */
6682         lpfc_sli4_bar1_register_memmap(phba);
6683
6684         /* Set up BAR2 register memory map */
6685         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
6686         if (error)
6687                 goto out_iounmap_all;
6688
6689         return 0;
6690
6691 out_iounmap_all:
6692         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6693 out_iounmap_ctrl:
6694         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6695 out_iounmap_conf:
6696         iounmap(phba->sli4_hba.conf_regs_memmap_p);
6697 out:
6698         return error;
6699 }
6700
6701 /**
6702  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6703  * @phba: pointer to lpfc hba data structure.
6704  *
6705  * This routine is invoked to unset the PCI device memory space for device
6706  * with SLI-4 interface spec.
6707  **/
6708 static void
6709 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
6710 {
6711         struct pci_dev *pdev;
6712
6713         /* Obtain PCI device reference */
6714         if (!phba->pcidev)
6715                 return;
6716         else
6717                 pdev = phba->pcidev;
6718
6719         /* Free coherent DMA memory allocated */
6720
6721         /* Unmap I/O memory space */
6722         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6723         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6724         iounmap(phba->sli4_hba.conf_regs_memmap_p);
6725
6726         return;
6727 }
6728
6729 /**
6730  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6731  * @phba: pointer to lpfc hba data structure.
6732  *
6733  * This routine is invoked to enable the MSI-X interrupt vectors to device
6734  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6735  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6736  * invoked, enables either all or nothing, depending on the current
6737  * availability of PCI vector resources. The device driver is responsible
6738  * for calling the individual request_irq() to register each MSI-X vector
6739  * with a interrupt handler, which is done in this function. Note that
6740  * later when device is unloading, the driver should always call free_irq()
6741  * on all MSI-X vectors it has done request_irq() on before calling
6742  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6743  * will be left with MSI-X enabled and leaks its vectors.
6744  *
6745  * Return codes
6746  *   0 - successful
6747  *   other values - error
6748  **/
6749 static int
6750 lpfc_sli_enable_msix(struct lpfc_hba *phba)
6751 {
6752         int rc, i;
6753         LPFC_MBOXQ_t *pmb;
6754
6755         /* Set up MSI-X multi-message vectors */
6756         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6757                 phba->msix_entries[i].entry = i;
6758
6759         /* Configure MSI-X capability structure */
6760         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
6761                                 ARRAY_SIZE(phba->msix_entries));
6762         if (rc) {
6763                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6764                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
6765                 goto msi_fail_out;
6766         }
6767         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6768                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6769                                 "0477 MSI-X entry[%d]: vector=x%x "
6770                                 "message=%d\n", i,
6771                                 phba->msix_entries[i].vector,
6772                                 phba->msix_entries[i].entry);
6773         /*
6774          * Assign MSI-X vectors to interrupt handlers
6775          */
6776
6777         /* vector-0 is associated to slow-path handler */
6778         rc = request_irq(phba->msix_entries[0].vector,
6779                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6780                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
6781         if (rc) {
6782                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6783                                 "0421 MSI-X slow-path request_irq failed "
6784                                 "(%d)\n", rc);
6785                 goto msi_fail_out;
6786         }
6787
6788         /* vector-1 is associated to fast-path handler */
6789         rc = request_irq(phba->msix_entries[1].vector,
6790                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6791                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
6792
6793         if (rc) {
6794                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6795                                 "0429 MSI-X fast-path request_irq failed "
6796                                 "(%d)\n", rc);
6797                 goto irq_fail_out;
6798         }
6799
6800         /*
6801          * Configure HBA MSI-X attention conditions to messages
6802          */
6803         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6804
6805         if (!pmb) {
6806                 rc = -ENOMEM;
6807                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6808                                 "0474 Unable to allocate memory for issuing "
6809                                 "MBOX_CONFIG_MSI command\n");
6810                 goto mem_fail_out;
6811         }
6812         rc = lpfc_config_msi(phba, pmb);
6813         if (rc)
6814                 goto mbx_fail_out;
6815         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6816         if (rc != MBX_SUCCESS) {
6817                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6818                                 "0351 Config MSI mailbox command failed, "
6819                                 "mbxCmd x%x, mbxStatus x%x\n",
6820                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
6821                 goto mbx_fail_out;
6822         }
6823
6824         /* Free memory allocated for mailbox command */
6825         mempool_free(pmb, phba->mbox_mem_pool);
6826         return rc;
6827
6828 mbx_fail_out:
6829         /* Free memory allocated for mailbox command */
6830         mempool_free(pmb, phba->mbox_mem_pool);
6831
6832 mem_fail_out:
6833         /* free the irq already requested */
6834         free_irq(phba->msix_entries[1].vector, phba);
6835
6836 irq_fail_out:
6837         /* free the irq already requested */
6838         free_irq(phba->msix_entries[0].vector, phba);
6839
6840 msi_fail_out:
6841         /* Unconfigure MSI-X capability structure */
6842         pci_disable_msix(phba->pcidev);
6843         return rc;
6844 }
6845
6846 /**
6847  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6848  * @phba: pointer to lpfc hba data structure.
6849  *
6850  * This routine is invoked to release the MSI-X vectors and then disable the
6851  * MSI-X interrupt mode to device with SLI-3 interface spec.
6852  **/
6853 static void
6854 lpfc_sli_disable_msix(struct lpfc_hba *phba)
6855 {
6856         int i;
6857
6858         /* Free up MSI-X multi-message vectors */
6859         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6860                 free_irq(phba->msix_entries[i].vector, phba);
6861         /* Disable MSI-X */
6862         pci_disable_msix(phba->pcidev);
6863
6864         return;
6865 }
6866
6867 /**
6868  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6869  * @phba: pointer to lpfc hba data structure.
6870  *
6871  * This routine is invoked to enable the MSI interrupt mode to device with
6872  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6873  * enable the MSI vector. The device driver is responsible for calling the
6874  * request_irq() to register MSI vector with a interrupt the handler, which
6875  * is done in this function.
6876  *
6877  * Return codes
6878  *      0 - successful
6879  *      other values - error
6880  */
6881 static int
6882 lpfc_sli_enable_msi(struct lpfc_hba *phba)
6883 {
6884         int rc;
6885
6886         rc = pci_enable_msi(phba->pcidev);
6887         if (!rc)
6888                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6889                                 "0462 PCI enable MSI mode success.\n");
6890         else {
6891                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6892                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
6893                 return rc;
6894         }
6895
6896         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6897                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6898         if (rc) {
6899                 pci_disable_msi(phba->pcidev);
6900                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6901                                 "0478 MSI request_irq failed (%d)\n", rc);
6902         }
6903         return rc;
6904 }
6905
6906 /**
6907  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6908  * @phba: pointer to lpfc hba data structure.
6909  *
6910  * This routine is invoked to disable the MSI interrupt mode to device with
6911  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6912  * done request_irq() on before calling pci_disable_msi(). Failure to do so
6913  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6914  * its vector.
6915  */
6916 static void
6917 lpfc_sli_disable_msi(struct lpfc_hba *phba)
6918 {
6919         free_irq(phba->pcidev->irq, phba);
6920         pci_disable_msi(phba->pcidev);
6921         return;
6922 }
6923
6924 /**
6925  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6926  * @phba: pointer to lpfc hba data structure.
6927  *
6928  * This routine is invoked to enable device interrupt and associate driver's
6929  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6930  * spec. Depends on the interrupt mode configured to the driver, the driver
6931  * will try to fallback from the configured interrupt mode to an interrupt
6932  * mode which is supported by the platform, kernel, and device in the order
6933  * of:
6934  * MSI-X -> MSI -> IRQ.
6935  *
6936  * Return codes
6937  *   0 - successful
6938  *   other values - error
6939  **/
6940 static uint32_t
6941 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6942 {
6943         uint32_t intr_mode = LPFC_INTR_ERROR;
6944         int retval;
6945
6946         if (cfg_mode == 2) {
6947                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6948                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6949                 if (!retval) {
6950                         /* Now, try to enable MSI-X interrupt mode */
6951                         retval = lpfc_sli_enable_msix(phba);
6952                         if (!retval) {
6953                                 /* Indicate initialization to MSI-X mode */
6954                                 phba->intr_type = MSIX;
6955                                 intr_mode = 2;
6956                         }
6957                 }
6958         }
6959
6960         /* Fallback to MSI if MSI-X initialization failed */
6961         if (cfg_mode >= 1 && phba->intr_type == NONE) {
6962                 retval = lpfc_sli_enable_msi(phba);
6963                 if (!retval) {
6964                         /* Indicate initialization to MSI mode */
6965                         phba->intr_type = MSI;
6966                         intr_mode = 1;
6967                 }
6968         }
6969
6970         /* Fallback to INTx if both MSI-X/MSI initalization failed */
6971         if (phba->intr_type == NONE) {
6972                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6973                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6974                 if (!retval) {
6975                         /* Indicate initialization to INTx mode */
6976                         phba->intr_type = INTx;
6977                         intr_mode = 0;
6978                 }
6979         }
6980         return intr_mode;
6981 }
6982
6983 /**
6984  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6985  * @phba: pointer to lpfc hba data structure.
6986  *
6987  * This routine is invoked to disable device interrupt and disassociate the
6988  * driver's interrupt handler(s) from interrupt vector(s) to device with
6989  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6990  * release the interrupt vector(s) for the message signaled interrupt.
6991  **/
6992 static void
6993 lpfc_sli_disable_intr(struct lpfc_hba *phba)
6994 {
6995         /* Disable the currently initialized interrupt mode */
6996         if (phba->intr_type == MSIX)
6997                 lpfc_sli_disable_msix(phba);
6998         else if (phba->intr_type == MSI)
6999                 lpfc_sli_disable_msi(phba);
7000         else if (phba->intr_type == INTx)
7001                 free_irq(phba->pcidev->irq, phba);
7002
7003         /* Reset interrupt management states */
7004         phba->intr_type = NONE;
7005         phba->sli.slistat.sli_intr = 0;
7006
7007         return;
7008 }
7009
7010 /**
7011  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7012  * @phba: pointer to lpfc hba data structure.
7013  *
7014  * This routine is invoked to enable the MSI-X interrupt vectors to device
7015  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7016  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7017  * enables either all or nothing, depending on the current availability of
7018  * PCI vector resources. The device driver is responsible for calling the
7019  * individual request_irq() to register each MSI-X vector with a interrupt
7020  * handler, which is done in this function. Note that later when device is
7021  * unloading, the driver should always call free_irq() on all MSI-X vectors
7022  * it has done request_irq() on before calling pci_disable_msix(). Failure
7023  * to do so results in a BUG_ON() and a device will be left with MSI-X
7024  * enabled and leaks its vectors.
7025  *
7026  * Return codes
7027  * 0 - successful
7028  * other values - error
7029  **/
7030 static int
7031 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7032 {
7033         int rc, index;
7034
7035         /* Set up MSI-X multi-message vectors */
7036         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7037                 phba->sli4_hba.msix_entries[index].entry = index;
7038
7039         /* Configure MSI-X capability structure */
7040         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7041                              phba->sli4_hba.cfg_eqn);
7042         if (rc) {
7043                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7044                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
7045                 goto msi_fail_out;
7046         }
7047         /* Log MSI-X vector assignment */
7048         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7049                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7050                                 "0489 MSI-X entry[%d]: vector=x%x "
7051                                 "message=%d\n", index,
7052                                 phba->sli4_hba.msix_entries[index].vector,
7053                                 phba->sli4_hba.msix_entries[index].entry);
7054         /*
7055          * Assign MSI-X vectors to interrupt handlers
7056          */
7057
7058         /* The first vector must associated to slow-path handler for MQ */
7059         rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7060                          &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7061                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7062         if (rc) {
7063                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7064                                 "0485 MSI-X slow-path request_irq failed "
7065                                 "(%d)\n", rc);
7066                 goto msi_fail_out;
7067         }
7068
7069         /* The rest of the vector(s) are associated to fast-path handler(s) */
7070         for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) {
7071                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7072                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7073                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7074                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7075                                  LPFC_FP_DRIVER_HANDLER_NAME,
7076                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7077                 if (rc) {
7078                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7079                                         "0486 MSI-X fast-path (%d) "
7080                                         "request_irq failed (%d)\n", index, rc);
7081                         goto cfg_fail_out;
7082                 }
7083         }
7084
7085         return rc;
7086
7087 cfg_fail_out:
7088         /* free the irq already requested */
7089         for (--index; index >= 1; index--)
7090                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7091                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7092
7093         /* free the irq already requested */
7094         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7095
7096 msi_fail_out:
7097         /* Unconfigure MSI-X capability structure */
7098         pci_disable_msix(phba->pcidev);
7099         return rc;
7100 }
7101
7102 /**
7103  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7104  * @phba: pointer to lpfc hba data structure.
7105  *
7106  * This routine is invoked to release the MSI-X vectors and then disable the
7107  * MSI-X interrupt mode to device with SLI-4 interface spec.
7108  **/
7109 static void
7110 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7111 {
7112         int index;
7113
7114         /* Free up MSI-X multi-message vectors */
7115         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7116
7117         for (index = 1; index < phba->sli4_hba.cfg_eqn; index++)
7118                 free_irq(phba->sli4_hba.msix_entries[index].vector,
7119                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7120         /* Disable MSI-X */
7121         pci_disable_msix(phba->pcidev);
7122
7123         return;
7124 }
7125
7126 /**
7127  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7128  * @phba: pointer to lpfc hba data structure.
7129  *
7130  * This routine is invoked to enable the MSI interrupt mode to device with
7131  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7132  * to enable the MSI vector. The device driver is responsible for calling
7133  * the request_irq() to register MSI vector with a interrupt the handler,
7134  * which is done in this function.
7135  *
7136  * Return codes
7137  *      0 - successful
7138  *      other values - error
7139  **/
7140 static int
7141 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7142 {
7143         int rc, index;
7144
7145         rc = pci_enable_msi(phba->pcidev);
7146         if (!rc)
7147                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7148                                 "0487 PCI enable MSI mode success.\n");
7149         else {
7150                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7151                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
7152                 return rc;
7153         }
7154
7155         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7156                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7157         if (rc) {
7158                 pci_disable_msi(phba->pcidev);
7159                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7160                                 "0490 MSI request_irq failed (%d)\n", rc);
7161         }
7162
7163         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7164                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7165                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7166         }
7167
7168         return rc;
7169 }
7170
7171 /**
7172  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7173  * @phba: pointer to lpfc hba data structure.
7174  *
7175  * This routine is invoked to disable the MSI interrupt mode to device with
7176  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7177  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7178  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7179  * its vector.
7180  **/
7181 static void
7182 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7183 {
7184         free_irq(phba->pcidev->irq, phba);
7185         pci_disable_msi(phba->pcidev);
7186         return;
7187 }
7188
7189 /**
7190  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7191  * @phba: pointer to lpfc hba data structure.
7192  *
7193  * This routine is invoked to enable device interrupt and associate driver's
7194  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7195  * interface spec. Depends on the interrupt mode configured to the driver,
7196  * the driver will try to fallback from the configured interrupt mode to an
7197  * interrupt mode which is supported by the platform, kernel, and device in
7198  * the order of:
7199  * MSI-X -> MSI -> IRQ.
7200  *
7201  * Return codes
7202  *      0 - successful
7203  *      other values - error
7204  **/
7205 static uint32_t
7206 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7207 {
7208         uint32_t intr_mode = LPFC_INTR_ERROR;
7209         int retval, index;
7210
7211         if (cfg_mode == 2) {
7212                 /* Preparation before conf_msi mbox cmd */
7213                 retval = 0;
7214                 if (!retval) {
7215                         /* Now, try to enable MSI-X interrupt mode */
7216                         retval = lpfc_sli4_enable_msix(phba);
7217                         if (!retval) {
7218                                 /* Indicate initialization to MSI-X mode */
7219                                 phba->intr_type = MSIX;
7220                                 intr_mode = 2;
7221                         }
7222                 }
7223         }
7224
7225         /* Fallback to MSI if MSI-X initialization failed */
7226         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7227                 retval = lpfc_sli4_enable_msi(phba);
7228                 if (!retval) {
7229                         /* Indicate initialization to MSI mode */
7230                         phba->intr_type = MSI;
7231                         intr_mode = 1;
7232                 }
7233         }
7234
7235         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7236         if (phba->intr_type == NONE) {
7237                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7238                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7239                 if (!retval) {
7240                         /* Indicate initialization to INTx mode */
7241                         phba->intr_type = INTx;
7242                         intr_mode = 0;
7243                         for (index = 0; index < phba->cfg_fcp_eq_count;
7244                              index++) {
7245                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7246                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7247                         }
7248                 }
7249         }
7250         return intr_mode;
7251 }
7252
7253 /**
7254  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7255  * @phba: pointer to lpfc hba data structure.
7256  *
7257  * This routine is invoked to disable device interrupt and disassociate
7258  * the driver's interrupt handler(s) from interrupt vector(s) to device
7259  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7260  * will release the interrupt vector(s) for the message signaled interrupt.
7261  **/
7262 static void
7263 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7264 {
7265         /* Disable the currently initialized interrupt mode */
7266         if (phba->intr_type == MSIX)
7267                 lpfc_sli4_disable_msix(phba);
7268         else if (phba->intr_type == MSI)
7269                 lpfc_sli4_disable_msi(phba);
7270         else if (phba->intr_type == INTx)
7271                 free_irq(phba->pcidev->irq, phba);
7272
7273         /* Reset interrupt management states */
7274         phba->intr_type = NONE;
7275         phba->sli.slistat.sli_intr = 0;
7276
7277         return;
7278 }
7279
7280 /**
7281  * lpfc_unset_hba - Unset SLI3 hba device initialization
7282  * @phba: pointer to lpfc hba data structure.
7283  *
7284  * This routine is invoked to unset the HBA device initialization steps to
7285  * a device with SLI-3 interface spec.
7286  **/
7287 static void
7288 lpfc_unset_hba(struct lpfc_hba *phba)
7289 {
7290         struct lpfc_vport *vport = phba->pport;
7291         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7292
7293         spin_lock_irq(shost->host_lock);
7294         vport->load_flag |= FC_UNLOADING;
7295         spin_unlock_irq(shost->host_lock);
7296
7297         lpfc_stop_hba_timers(phba);
7298
7299         phba->pport->work_port_events = 0;
7300
7301         lpfc_sli_hba_down(phba);
7302
7303         lpfc_sli_brdrestart(phba);
7304
7305         lpfc_sli_disable_intr(phba);
7306
7307         return;
7308 }
7309
7310 /**
7311  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7312  * @phba: pointer to lpfc hba data structure.
7313  *
7314  * This routine is invoked to unset the HBA device initialization steps to
7315  * a device with SLI-4 interface spec.
7316  **/
7317 static void
7318 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7319 {
7320         struct lpfc_vport *vport = phba->pport;
7321         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7322
7323         spin_lock_irq(shost->host_lock);
7324         vport->load_flag |= FC_UNLOADING;
7325         spin_unlock_irq(shost->host_lock);
7326
7327         phba->pport->work_port_events = 0;
7328
7329         lpfc_sli4_hba_down(phba);
7330
7331         lpfc_sli4_disable_intr(phba);
7332
7333         return;
7334 }
7335
7336 /**
7337  * lpfc_sli4_hba_unset - Unset the fcoe hba
7338  * @phba: Pointer to HBA context object.
7339  *
7340  * This function is called in the SLI4 code path to reset the HBA's FCoE
7341  * function. The caller is not required to hold any lock. This routine
7342  * issues PCI function reset mailbox command to reset the FCoE function.
7343  * At the end of the function, it calls lpfc_hba_down_post function to
7344  * free any pending commands.
7345  **/
7346 static void
7347 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7348 {
7349         int wait_cnt = 0;
7350         LPFC_MBOXQ_t *mboxq;
7351
7352         lpfc_stop_hba_timers(phba);
7353         phba->sli4_hba.intr_enable = 0;
7354
7355         /*
7356          * Gracefully wait out the potential current outstanding asynchronous
7357          * mailbox command.
7358          */
7359
7360         /* First, block any pending async mailbox command from posted */
7361         spin_lock_irq(&phba->hbalock);
7362         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7363         spin_unlock_irq(&phba->hbalock);
7364         /* Now, trying to wait it out if we can */
7365         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7366                 msleep(10);
7367                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7368                         break;
7369         }
7370         /* Forcefully release the outstanding mailbox command if timed out */
7371         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7372                 spin_lock_irq(&phba->hbalock);
7373                 mboxq = phba->sli.mbox_active;
7374                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7375                 __lpfc_mbox_cmpl_put(phba, mboxq);
7376                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7377                 phba->sli.mbox_active = NULL;
7378                 spin_unlock_irq(&phba->hbalock);
7379         }
7380
7381         /* Tear down the queues in the HBA */
7382         lpfc_sli4_queue_unset(phba);
7383
7384         /* Disable PCI subsystem interrupt */
7385         lpfc_sli4_disable_intr(phba);
7386
7387         /* Stop kthread signal shall trigger work_done one more time */
7388         kthread_stop(phba->worker_thread);
7389
7390         /* Stop the SLI4 device port */
7391         phba->pport->work_port_events = 0;
7392 }
7393
7394  /**
7395  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7396  * @phba: Pointer to HBA context object.
7397  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7398  *
7399  * This function is called in the SLI4 code path to read the port's
7400  * sli4 capabilities.
7401  *
7402  * This function may be be called from any context that can block-wait
7403  * for the completion.  The expectation is that this routine is called
7404  * typically from probe_one or from the online routine.
7405  **/
7406 int
7407 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7408 {
7409         int rc;
7410         struct lpfc_mqe *mqe;
7411         struct lpfc_pc_sli4_params *sli4_params;
7412         uint32_t mbox_tmo;
7413
7414         rc = 0;
7415         mqe = &mboxq->u.mqe;
7416
7417         /* Read the port's SLI4 Parameters port capabilities */
7418         lpfc_sli4_params(mboxq);
7419         if (!phba->sli4_hba.intr_enable)
7420                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7421         else {
7422                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7423                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7424         }
7425
7426         if (unlikely(rc))
7427                 return 1;
7428
7429         sli4_params = &phba->sli4_hba.pc_sli4_params;
7430         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7431         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7432         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7433         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7434                                              &mqe->un.sli4_params);
7435         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7436                                              &mqe->un.sli4_params);
7437         sli4_params->proto_types = mqe->un.sli4_params.word3;
7438         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7439         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7440         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7441         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7442         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7443         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7444         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7445         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7446         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7447         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7448         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7449         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7450         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7451         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7452         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7453         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7454         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7455         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7456         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7457         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7458         return rc;
7459 }
7460
7461 /**
7462  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7463  * @pdev: pointer to PCI device
7464  * @pid: pointer to PCI device identifier
7465  *
7466  * This routine is to be called to attach a device with SLI-3 interface spec
7467  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7468  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7469  * information of the device and driver to see if the driver state that it can
7470  * support this kind of device. If the match is successful, the driver core
7471  * invokes this routine. If this routine determines it can claim the HBA, it
7472  * does all the initialization that it needs to do to handle the HBA properly.
7473  *
7474  * Return code
7475  *      0 - driver can claim the device
7476  *      negative value - driver can not claim the device
7477  **/
7478 static int __devinit
7479 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7480 {
7481         struct lpfc_hba   *phba;
7482         struct lpfc_vport *vport = NULL;
7483         struct Scsi_Host  *shost = NULL;
7484         int error;
7485         uint32_t cfg_mode, intr_mode;
7486
7487         /* Allocate memory for HBA structure */
7488         phba = lpfc_hba_alloc(pdev);
7489         if (!phba)
7490                 return -ENOMEM;
7491
7492         /* Perform generic PCI device enabling operation */
7493         error = lpfc_enable_pci_dev(phba);
7494         if (error) {
7495                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7496                                 "1401 Failed to enable pci device.\n");
7497                 goto out_free_phba;
7498         }
7499
7500         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7501         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7502         if (error)
7503                 goto out_disable_pci_dev;
7504
7505         /* Set up SLI-3 specific device PCI memory space */
7506         error = lpfc_sli_pci_mem_setup(phba);
7507         if (error) {
7508                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7509                                 "1402 Failed to set up pci memory space.\n");
7510                 goto out_disable_pci_dev;
7511         }
7512
7513         /* Set up phase-1 common device driver resources */
7514         error = lpfc_setup_driver_resource_phase1(phba);
7515         if (error) {
7516                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7517                                 "1403 Failed to set up driver resource.\n");
7518                 goto out_unset_pci_mem_s3;
7519         }
7520
7521         /* Set up SLI-3 specific device driver resources */
7522         error = lpfc_sli_driver_resource_setup(phba);
7523         if (error) {
7524                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7525                                 "1404 Failed to set up driver resource.\n");
7526                 goto out_unset_pci_mem_s3;
7527         }
7528
7529         /* Initialize and populate the iocb list per host */
7530         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
7531         if (error) {
7532                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7533                                 "1405 Failed to initialize iocb list.\n");
7534                 goto out_unset_driver_resource_s3;
7535         }
7536
7537         /* Set up common device driver resources */
7538         error = lpfc_setup_driver_resource_phase2(phba);
7539         if (error) {
7540                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7541                                 "1406 Failed to set up driver resource.\n");
7542                 goto out_free_iocb_list;
7543         }
7544
7545         /* Create SCSI host to the physical port */
7546         error = lpfc_create_shost(phba);
7547         if (error) {
7548                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7549                                 "1407 Failed to create scsi host.\n");
7550                 goto out_unset_driver_resource;
7551         }
7552
7553         /* Configure sysfs attributes */
7554         vport = phba->pport;
7555         error = lpfc_alloc_sysfs_attr(vport);
7556         if (error) {
7557                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7558                                 "1476 Failed to allocate sysfs attr\n");
7559                 goto out_destroy_shost;
7560         }
7561
7562         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7563         /* Now, trying to enable interrupt and bring up the device */
7564         cfg_mode = phba->cfg_use_msi;
7565         while (true) {
7566                 /* Put device to a known state before enabling interrupt */
7567                 lpfc_stop_port(phba);
7568                 /* Configure and enable interrupt */
7569                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
7570                 if (intr_mode == LPFC_INTR_ERROR) {
7571                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7572                                         "0431 Failed to enable interrupt.\n");
7573                         error = -ENODEV;
7574                         goto out_free_sysfs_attr;
7575                 }
7576                 /* SLI-3 HBA setup */
7577                 if (lpfc_sli_hba_setup(phba)) {
7578                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7579                                         "1477 Failed to set up hba\n");
7580                         error = -ENODEV;
7581                         goto out_remove_device;
7582                 }
7583
7584                 /* Wait 50ms for the interrupts of previous mailbox commands */
7585                 msleep(50);
7586                 /* Check active interrupts on message signaled interrupts */
7587                 if (intr_mode == 0 ||
7588                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
7589                         /* Log the current active interrupt mode */
7590                         phba->intr_mode = intr_mode;
7591                         lpfc_log_intr_mode(phba, intr_mode);
7592                         break;
7593                 } else {
7594                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7595                                         "0447 Configure interrupt mode (%d) "
7596                                         "failed active interrupt test.\n",
7597                                         intr_mode);
7598                         /* Disable the current interrupt mode */
7599                         lpfc_sli_disable_intr(phba);
7600                         /* Try next level of interrupt mode */
7601                         cfg_mode = --intr_mode;
7602                 }
7603         }
7604
7605         /* Perform post initialization setup */
7606         lpfc_post_init_setup(phba);
7607
7608         /* Check if there are static vports to be created. */
7609         lpfc_create_static_vport(phba);
7610
7611         return 0;
7612
7613 out_remove_device:
7614         lpfc_unset_hba(phba);
7615 out_free_sysfs_attr:
7616         lpfc_free_sysfs_attr(vport);
7617 out_destroy_shost:
7618         lpfc_destroy_shost(phba);
7619 out_unset_driver_resource:
7620         lpfc_unset_driver_resource_phase2(phba);
7621 out_free_iocb_list:
7622         lpfc_free_iocb_list(phba);
7623 out_unset_driver_resource_s3:
7624         lpfc_sli_driver_resource_unset(phba);
7625 out_unset_pci_mem_s3:
7626         lpfc_sli_pci_mem_unset(phba);
7627 out_disable_pci_dev:
7628         lpfc_disable_pci_dev(phba);
7629         if (shost)
7630                 scsi_host_put(shost);
7631 out_free_phba:
7632         lpfc_hba_free(phba);
7633         return error;
7634 }
7635
7636 /**
7637  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7638  * @pdev: pointer to PCI device
7639  *
7640  * This routine is to be called to disattach a device with SLI-3 interface
7641  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7642  * removed from PCI bus, it performs all the necessary cleanup for the HBA
7643  * device to be removed from the PCI subsystem properly.
7644  **/
7645 static void __devexit
7646 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
7647 {
7648         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
7649         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7650         struct lpfc_vport **vports;
7651         struct lpfc_hba   *phba = vport->phba;
7652         int i;
7653         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
7654
7655         spin_lock_irq(&phba->hbalock);
7656         vport->load_flag |= FC_UNLOADING;
7657         spin_unlock_irq(&phba->hbalock);
7658
7659         lpfc_free_sysfs_attr(vport);
7660
7661         /* Release all the vports against this physical port */
7662         vports = lpfc_create_vport_work_array(phba);
7663         if (vports != NULL)
7664                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7665                         fc_vport_terminate(vports[i]->fc_vport);
7666         lpfc_destroy_vport_work_array(phba, vports);
7667
7668         /* Remove FC host and then SCSI host with the physical port */
7669         fc_remove_host(shost);
7670         scsi_remove_host(shost);
7671         lpfc_cleanup(vport);
7672
7673         /*
7674          * Bring down the SLI Layer. This step disable all interrupts,
7675          * clears the rings, discards all mailbox commands, and resets
7676          * the HBA.
7677          */
7678
7679         /* HBA interrupt will be diabled after this call */
7680         lpfc_sli_hba_down(phba);
7681         /* Stop kthread signal shall trigger work_done one more time */
7682         kthread_stop(phba->worker_thread);
7683         /* Final cleanup of txcmplq and reset the HBA */
7684         lpfc_sli_brdrestart(phba);
7685
7686         lpfc_stop_hba_timers(phba);
7687         spin_lock_irq(&phba->hbalock);
7688         list_del_init(&vport->listentry);
7689         spin_unlock_irq(&phba->hbalock);
7690
7691         lpfc_debugfs_terminate(vport);
7692
7693         /* Disable interrupt */
7694         lpfc_sli_disable_intr(phba);
7695
7696         pci_set_drvdata(pdev, NULL);
7697         scsi_host_put(shost);
7698
7699         /*
7700          * Call scsi_free before mem_free since scsi bufs are released to their
7701          * corresponding pools here.
7702          */
7703         lpfc_scsi_free(phba);
7704         lpfc_mem_free_all(phba);
7705
7706         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7707                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7708
7709         /* Free resources associated with SLI2 interface */
7710         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7711                           phba->slim2p.virt, phba->slim2p.phys);
7712
7713         /* unmap adapter SLIM and Control Registers */
7714         iounmap(phba->ctrl_regs_memmap_p);
7715         iounmap(phba->slim_memmap_p);
7716
7717         lpfc_hba_free(phba);
7718
7719         pci_release_selected_regions(pdev, bars);
7720         pci_disable_device(pdev);
7721 }
7722
7723 /**
7724  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7725  * @pdev: pointer to PCI device
7726  * @msg: power management message
7727  *
7728  * This routine is to be called from the kernel's PCI subsystem to support
7729  * system Power Management (PM) to device with SLI-3 interface spec. When
7730  * PM invokes this method, it quiesces the device by stopping the driver's
7731  * worker thread for the device, turning off device's interrupt and DMA,
7732  * and bring the device offline. Note that as the driver implements the
7733  * minimum PM requirements to a power-aware driver's PM support for the
7734  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7735  * to the suspend() method call will be treated as SUSPEND and the driver will
7736  * fully reinitialize its device during resume() method call, the driver will
7737  * set device to PCI_D3hot state in PCI config space instead of setting it
7738  * according to the @msg provided by the PM.
7739  *
7740  * Return code
7741  *      0 - driver suspended the device
7742  *      Error otherwise
7743  **/
7744 static int
7745 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
7746 {
7747         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7748         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7749
7750         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7751                         "0473 PCI device Power Management suspend.\n");
7752
7753         /* Bring down the device */
7754         lpfc_offline_prep(phba);
7755         lpfc_offline(phba);
7756         kthread_stop(phba->worker_thread);
7757
7758         /* Disable interrupt from device */
7759         lpfc_sli_disable_intr(phba);
7760
7761         /* Save device state to PCI config space */
7762         pci_save_state(pdev);
7763         pci_set_power_state(pdev, PCI_D3hot);
7764
7765         return 0;
7766 }
7767
7768 /**
7769  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7770  * @pdev: pointer to PCI device
7771  *
7772  * This routine is to be called from the kernel's PCI subsystem to support
7773  * system Power Management (PM) to device with SLI-3 interface spec. When PM
7774  * invokes this method, it restores the device's PCI config space state and
7775  * fully reinitializes the device and brings it online. Note that as the
7776  * driver implements the minimum PM requirements to a power-aware driver's
7777  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7778  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7779  * driver will fully reinitialize its device during resume() method call,
7780  * the device will be set to PCI_D0 directly in PCI config space before
7781  * restoring the state.
7782  *
7783  * Return code
7784  *      0 - driver suspended the device
7785  *      Error otherwise
7786  **/
7787 static int
7788 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
7789 {
7790         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7791         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7792         uint32_t intr_mode;
7793         int error;
7794
7795         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7796                         "0452 PCI device Power Management resume.\n");
7797
7798         /* Restore device state from PCI config space */
7799         pci_set_power_state(pdev, PCI_D0);
7800         pci_restore_state(pdev);
7801
7802         /*
7803          * As the new kernel behavior of pci_restore_state() API call clears
7804          * device saved_state flag, need to save the restored state again.
7805          */
7806         pci_save_state(pdev);
7807
7808         if (pdev->is_busmaster)
7809                 pci_set_master(pdev);
7810
7811         /* Startup the kernel thread for this host adapter. */
7812         phba->worker_thread = kthread_run(lpfc_do_work, phba,
7813                                         "lpfc_worker_%d", phba->brd_no);
7814         if (IS_ERR(phba->worker_thread)) {
7815                 error = PTR_ERR(phba->worker_thread);
7816                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7817                                 "0434 PM resume failed to start worker "
7818                                 "thread: error=x%x.\n", error);
7819                 return error;
7820         }
7821
7822         /* Configure and enable interrupt */
7823         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7824         if (intr_mode == LPFC_INTR_ERROR) {
7825                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7826                                 "0430 PM resume Failed to enable interrupt\n");
7827                 return -EIO;
7828         } else
7829                 phba->intr_mode = intr_mode;
7830
7831         /* Restart HBA and bring it online */
7832         lpfc_sli_brdrestart(phba);
7833         lpfc_online(phba);
7834
7835         /* Log the current active interrupt mode */
7836         lpfc_log_intr_mode(phba, phba->intr_mode);
7837
7838         return 0;
7839 }
7840
7841 /**
7842  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7843  * @phba: pointer to lpfc hba data structure.
7844  *
7845  * This routine is called to prepare the SLI3 device for PCI slot recover. It
7846  * aborts all the outstanding SCSI I/Os to the pci device.
7847  **/
7848 static void
7849 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
7850 {
7851         struct lpfc_sli *psli = &phba->sli;
7852         struct lpfc_sli_ring  *pring;
7853
7854         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7855                         "2723 PCI channel I/O abort preparing for recovery\n");
7856
7857         /*
7858          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
7859          * and let the SCSI mid-layer to retry them to recover.
7860          */
7861         pring = &psli->ring[psli->fcp_ring];
7862         lpfc_sli_abort_iocb_ring(phba, pring);
7863 }
7864
7865 /**
7866  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7867  * @phba: pointer to lpfc hba data structure.
7868  *
7869  * This routine is called to prepare the SLI3 device for PCI slot reset. It
7870  * disables the device interrupt and pci device, and aborts the internal FCP
7871  * pending I/Os.
7872  **/
7873 static void
7874 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
7875 {
7876         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7877                         "2710 PCI channel disable preparing for reset\n");
7878
7879         /* Block all SCSI devices' I/Os on the host */
7880         lpfc_scsi_dev_block(phba);
7881
7882         /* stop all timers */
7883         lpfc_stop_hba_timers(phba);
7884
7885         /* Disable interrupt and pci device */
7886         lpfc_sli_disable_intr(phba);
7887         pci_disable_device(phba->pcidev);
7888         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
7889         lpfc_sli_flush_fcp_rings(phba);
7890 }
7891
7892 /**
7893  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7894  * @phba: pointer to lpfc hba data structure.
7895  *
7896  * This routine is called to prepare the SLI3 device for PCI slot permanently
7897  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7898  * pending I/Os.
7899  **/
7900 static void
7901 lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba)
7902 {
7903         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7904                         "2711 PCI channel permanent disable for failure\n");
7905         /* Block all SCSI devices' I/Os on the host */
7906         lpfc_scsi_dev_block(phba);
7907
7908         /* stop all timers */
7909         lpfc_stop_hba_timers(phba);
7910
7911         /* Clean up all driver's outstanding SCSI I/Os */
7912         lpfc_sli_flush_fcp_rings(phba);
7913 }
7914
7915 /**
7916  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7917  * @pdev: pointer to PCI device.
7918  * @state: the current PCI connection state.
7919  *
7920  * This routine is called from the PCI subsystem for I/O error handling to
7921  * device with SLI-3 interface spec. This function is called by the PCI
7922  * subsystem after a PCI bus error affecting this device has been detected.
7923  * When this function is invoked, it will need to stop all the I/Os and
7924  * interrupt(s) to the device. Once that is done, it will return
7925  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7926  * as desired.
7927  *
7928  * Return codes
7929  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7930  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7931  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7932  **/
7933 static pci_ers_result_t
7934 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
7935 {
7936         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7937         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7938
7939         switch (state) {
7940         case pci_channel_io_normal:
7941                 /* Non-fatal error, prepare for recovery */
7942                 lpfc_sli_prep_dev_for_recover(phba);
7943                 return PCI_ERS_RESULT_CAN_RECOVER;
7944         case pci_channel_io_frozen:
7945                 /* Fatal error, prepare for slot reset */
7946                 lpfc_sli_prep_dev_for_reset(phba);
7947                 return PCI_ERS_RESULT_NEED_RESET;
7948         case pci_channel_io_perm_failure:
7949                 /* Permanent failure, prepare for device down */
7950                 lpfc_prep_dev_for_perm_failure(phba);
7951                 return PCI_ERS_RESULT_DISCONNECT;
7952         default:
7953                 /* Unknown state, prepare and request slot reset */
7954                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7955                                 "0472 Unknown PCI error state: x%x\n", state);
7956                 lpfc_sli_prep_dev_for_reset(phba);
7957                 return PCI_ERS_RESULT_NEED_RESET;
7958         }
7959 }
7960
7961 /**
7962  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7963  * @pdev: pointer to PCI device.
7964  *
7965  * This routine is called from the PCI subsystem for error handling to
7966  * device with SLI-3 interface spec. This is called after PCI bus has been
7967  * reset to restart the PCI card from scratch, as if from a cold-boot.
7968  * During the PCI subsystem error recovery, after driver returns
7969  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7970  * recovery and then call this routine before calling the .resume method
7971  * to recover the device. This function will initialize the HBA device,
7972  * enable the interrupt, but it will just put the HBA to offline state
7973  * without passing any I/O traffic.
7974  *
7975  * Return codes
7976  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
7977  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7978  */
7979 static pci_ers_result_t
7980 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
7981 {
7982         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7983         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7984         struct lpfc_sli *psli = &phba->sli;
7985         uint32_t intr_mode;
7986
7987         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
7988         if (pci_enable_device_mem(pdev)) {
7989                 printk(KERN_ERR "lpfc: Cannot re-enable "
7990                         "PCI device after reset.\n");
7991                 return PCI_ERS_RESULT_DISCONNECT;
7992         }
7993
7994         pci_restore_state(pdev);
7995
7996         /*
7997          * As the new kernel behavior of pci_restore_state() API call clears
7998          * device saved_state flag, need to save the restored state again.
7999          */
8000         pci_save_state(pdev);
8001
8002         if (pdev->is_busmaster)
8003                 pci_set_master(pdev);
8004
8005         spin_lock_irq(&phba->hbalock);
8006         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8007         spin_unlock_irq(&phba->hbalock);
8008
8009         /* Configure and enable interrupt */
8010         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8011         if (intr_mode == LPFC_INTR_ERROR) {
8012                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8013                                 "0427 Cannot re-enable interrupt after "
8014                                 "slot reset.\n");
8015                 return PCI_ERS_RESULT_DISCONNECT;
8016         } else
8017                 phba->intr_mode = intr_mode;
8018
8019         /* Take device offline; this will perform cleanup */
8020         lpfc_offline(phba);
8021         lpfc_sli_brdrestart(phba);
8022
8023         /* Log the current active interrupt mode */
8024         lpfc_log_intr_mode(phba, phba->intr_mode);
8025
8026         return PCI_ERS_RESULT_RECOVERED;
8027 }
8028
8029 /**
8030  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8031  * @pdev: pointer to PCI device
8032  *
8033  * This routine is called from the PCI subsystem for error handling to device
8034  * with SLI-3 interface spec. It is called when kernel error recovery tells
8035  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8036  * error recovery. After this call, traffic can start to flow from this device
8037  * again.
8038  */
8039 static void
8040 lpfc_io_resume_s3(struct pci_dev *pdev)
8041 {
8042         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8043         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8044
8045         /* Bring device online, it will be no-op for non-fatal error resume */
8046         lpfc_online(phba);
8047
8048         /* Clean up Advanced Error Reporting (AER) if needed */
8049         if (phba->hba_flag & HBA_AER_ENABLED)
8050                 pci_cleanup_aer_uncorrect_error_status(pdev);
8051 }
8052
8053 /**
8054  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8055  * @phba: pointer to lpfc hba data structure.
8056  *
8057  * returns the number of ELS/CT IOCBs to reserve
8058  **/
8059 int
8060 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8061 {
8062         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8063
8064         if (phba->sli_rev == LPFC_SLI_REV4) {
8065                 if (max_xri <= 100)
8066                         return 10;
8067                 else if (max_xri <= 256)
8068                         return 25;
8069                 else if (max_xri <= 512)
8070                         return 50;
8071                 else if (max_xri <= 1024)
8072                         return 100;
8073                 else
8074                         return 150;
8075         } else
8076                 return 0;
8077 }
8078
8079 /**
8080  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8081  * @pdev: pointer to PCI device
8082  * @pid: pointer to PCI device identifier
8083  *
8084  * This routine is called from the kernel's PCI subsystem to device with
8085  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8086  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8087  * information of the device and driver to see if the driver state that it
8088  * can support this kind of device. If the match is successful, the driver
8089  * core invokes this routine. If this routine determines it can claim the HBA,
8090  * it does all the initialization that it needs to do to handle the HBA
8091  * properly.
8092  *
8093  * Return code
8094  *      0 - driver can claim the device
8095  *      negative value - driver can not claim the device
8096  **/
8097 static int __devinit
8098 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8099 {
8100         struct lpfc_hba   *phba;
8101         struct lpfc_vport *vport = NULL;
8102         struct Scsi_Host  *shost = NULL;
8103         int error;
8104         uint32_t cfg_mode, intr_mode;
8105         int mcnt;
8106
8107         /* Allocate memory for HBA structure */
8108         phba = lpfc_hba_alloc(pdev);
8109         if (!phba)
8110                 return -ENOMEM;
8111
8112         /* Perform generic PCI device enabling operation */
8113         error = lpfc_enable_pci_dev(phba);
8114         if (error) {
8115                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8116                                 "1409 Failed to enable pci device.\n");
8117                 goto out_free_phba;
8118         }
8119
8120         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8121         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8122         if (error)
8123                 goto out_disable_pci_dev;
8124
8125         /* Set up SLI-4 specific device PCI memory space */
8126         error = lpfc_sli4_pci_mem_setup(phba);
8127         if (error) {
8128                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8129                                 "1410 Failed to set up pci memory space.\n");
8130                 goto out_disable_pci_dev;
8131         }
8132
8133         /* Set up phase-1 common device driver resources */
8134         error = lpfc_setup_driver_resource_phase1(phba);
8135         if (error) {
8136                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8137                                 "1411 Failed to set up driver resource.\n");
8138                 goto out_unset_pci_mem_s4;
8139         }
8140
8141         /* Set up SLI-4 Specific device driver resources */
8142         error = lpfc_sli4_driver_resource_setup(phba);
8143         if (error) {
8144                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8145                                 "1412 Failed to set up driver resource.\n");
8146                 goto out_unset_pci_mem_s4;
8147         }
8148
8149         /* Initialize and populate the iocb list per host */
8150
8151         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8152                         "2821 initialize iocb list %d.\n",
8153                         phba->cfg_iocb_cnt*1024);
8154         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
8155
8156         if (error) {
8157                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8158                                 "1413 Failed to initialize iocb list.\n");
8159                 goto out_unset_driver_resource_s4;
8160         }
8161
8162         /* Set up common device driver resources */
8163         error = lpfc_setup_driver_resource_phase2(phba);
8164         if (error) {
8165                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8166                                 "1414 Failed to set up driver resource.\n");
8167                 goto out_free_iocb_list;
8168         }
8169
8170         /* Create SCSI host to the physical port */
8171         error = lpfc_create_shost(phba);
8172         if (error) {
8173                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8174                                 "1415 Failed to create scsi host.\n");
8175                 goto out_unset_driver_resource;
8176         }
8177
8178         /* Configure sysfs attributes */
8179         vport = phba->pport;
8180         error = lpfc_alloc_sysfs_attr(vport);
8181         if (error) {
8182                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8183                                 "1416 Failed to allocate sysfs attr\n");
8184                 goto out_destroy_shost;
8185         }
8186
8187         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8188         /* Now, trying to enable interrupt and bring up the device */
8189         cfg_mode = phba->cfg_use_msi;
8190         while (true) {
8191                 /* Put device to a known state before enabling interrupt */
8192                 lpfc_stop_port(phba);
8193                 /* Configure and enable interrupt */
8194                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8195                 if (intr_mode == LPFC_INTR_ERROR) {
8196                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8197                                         "0426 Failed to enable interrupt.\n");
8198                         error = -ENODEV;
8199                         goto out_free_sysfs_attr;
8200                 }
8201                 /* Default to single FCP EQ for non-MSI-X */
8202                 if (phba->intr_type != MSIX)
8203                         phba->cfg_fcp_eq_count = 1;
8204                 /* Set up SLI-4 HBA */
8205                 if (lpfc_sli4_hba_setup(phba)) {
8206                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8207                                         "1421 Failed to set up hba\n");
8208                         error = -ENODEV;
8209                         goto out_disable_intr;
8210                 }
8211
8212                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8213                 if (intr_mode != 0)
8214                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8215                                                             LPFC_ACT_INTR_CNT);
8216
8217                 /* Check active interrupts received only for MSI/MSI-X */
8218                 if (intr_mode == 0 ||
8219                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8220                         /* Log the current active interrupt mode */
8221                         phba->intr_mode = intr_mode;
8222                         lpfc_log_intr_mode(phba, intr_mode);
8223                         break;
8224                 }
8225                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8226                                 "0451 Configure interrupt mode (%d) "
8227                                 "failed active interrupt test.\n",
8228                                 intr_mode);
8229                 /* Unset the preivous SLI-4 HBA setup */
8230                 lpfc_sli4_unset_hba(phba);
8231                 /* Try next level of interrupt mode */
8232                 cfg_mode = --intr_mode;
8233         }
8234
8235         /* Perform post initialization setup */
8236         lpfc_post_init_setup(phba);
8237
8238         /* Check if there are static vports to be created. */
8239         lpfc_create_static_vport(phba);
8240
8241         return 0;
8242
8243 out_disable_intr:
8244         lpfc_sli4_disable_intr(phba);
8245 out_free_sysfs_attr:
8246         lpfc_free_sysfs_attr(vport);
8247 out_destroy_shost:
8248         lpfc_destroy_shost(phba);
8249 out_unset_driver_resource:
8250         lpfc_unset_driver_resource_phase2(phba);
8251 out_free_iocb_list:
8252         lpfc_free_iocb_list(phba);
8253 out_unset_driver_resource_s4:
8254         lpfc_sli4_driver_resource_unset(phba);
8255 out_unset_pci_mem_s4:
8256         lpfc_sli4_pci_mem_unset(phba);
8257 out_disable_pci_dev:
8258         lpfc_disable_pci_dev(phba);
8259         if (shost)
8260                 scsi_host_put(shost);
8261 out_free_phba:
8262         lpfc_hba_free(phba);
8263         return error;
8264 }
8265
8266 /**
8267  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8268  * @pdev: pointer to PCI device
8269  *
8270  * This routine is called from the kernel's PCI subsystem to device with
8271  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8272  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8273  * device to be removed from the PCI subsystem properly.
8274  **/
8275 static void __devexit
8276 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8277 {
8278         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8279         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8280         struct lpfc_vport **vports;
8281         struct lpfc_hba *phba = vport->phba;
8282         int i;
8283
8284         /* Mark the device unloading flag */
8285         spin_lock_irq(&phba->hbalock);
8286         vport->load_flag |= FC_UNLOADING;
8287         spin_unlock_irq(&phba->hbalock);
8288
8289         /* Free the HBA sysfs attributes */
8290         lpfc_free_sysfs_attr(vport);
8291
8292         /* Release all the vports against this physical port */
8293         vports = lpfc_create_vport_work_array(phba);
8294         if (vports != NULL)
8295                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8296                         fc_vport_terminate(vports[i]->fc_vport);
8297         lpfc_destroy_vport_work_array(phba, vports);
8298
8299         /* Remove FC host and then SCSI host with the physical port */
8300         fc_remove_host(shost);
8301         scsi_remove_host(shost);
8302
8303         /* Perform cleanup on the physical port */
8304         lpfc_cleanup(vport);
8305
8306         /*
8307          * Bring down the SLI Layer. This step disables all interrupts,
8308          * clears the rings, discards all mailbox commands, and resets
8309          * the HBA FCoE function.
8310          */
8311         lpfc_debugfs_terminate(vport);
8312         lpfc_sli4_hba_unset(phba);
8313
8314         spin_lock_irq(&phba->hbalock);
8315         list_del_init(&vport->listentry);
8316         spin_unlock_irq(&phba->hbalock);
8317
8318         /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
8319          * buffers are released to their corresponding pools here.
8320          */
8321         lpfc_scsi_free(phba);
8322         lpfc_sli4_driver_resource_unset(phba);
8323
8324         /* Unmap adapter Control and Doorbell registers */
8325         lpfc_sli4_pci_mem_unset(phba);
8326
8327         /* Release PCI resources and disable device's PCI function */
8328         scsi_host_put(shost);
8329         lpfc_disable_pci_dev(phba);
8330
8331         /* Finally, free the driver's device data structure */
8332         lpfc_hba_free(phba);
8333
8334         return;
8335 }
8336
8337 /**
8338  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8339  * @pdev: pointer to PCI device
8340  * @msg: power management message
8341  *
8342  * This routine is called from the kernel's PCI subsystem to support system
8343  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8344  * this method, it quiesces the device by stopping the driver's worker
8345  * thread for the device, turning off device's interrupt and DMA, and bring
8346  * the device offline. Note that as the driver implements the minimum PM
8347  * requirements to a power-aware driver's PM support for suspend/resume -- all
8348  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8349  * method call will be treated as SUSPEND and the driver will fully
8350  * reinitialize its device during resume() method call, the driver will set
8351  * device to PCI_D3hot state in PCI config space instead of setting it
8352  * according to the @msg provided by the PM.
8353  *
8354  * Return code
8355  *      0 - driver suspended the device
8356  *      Error otherwise
8357  **/
8358 static int
8359 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8360 {
8361         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8362         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8363
8364         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8365                         "0298 PCI device Power Management suspend.\n");
8366
8367         /* Bring down the device */
8368         lpfc_offline_prep(phba);
8369         lpfc_offline(phba);
8370         kthread_stop(phba->worker_thread);
8371
8372         /* Disable interrupt from device */
8373         lpfc_sli4_disable_intr(phba);
8374
8375         /* Save device state to PCI config space */
8376         pci_save_state(pdev);
8377         pci_set_power_state(pdev, PCI_D3hot);
8378
8379         return 0;
8380 }
8381
8382 /**
8383  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8384  * @pdev: pointer to PCI device
8385  *
8386  * This routine is called from the kernel's PCI subsystem to support system
8387  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8388  * this method, it restores the device's PCI config space state and fully
8389  * reinitializes the device and brings it online. Note that as the driver
8390  * implements the minimum PM requirements to a power-aware driver's PM for
8391  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8392  * to the suspend() method call will be treated as SUSPEND and the driver
8393  * will fully reinitialize its device during resume() method call, the device
8394  * will be set to PCI_D0 directly in PCI config space before restoring the
8395  * state.
8396  *
8397  * Return code
8398  *      0 - driver suspended the device
8399  *      Error otherwise
8400  **/
8401 static int
8402 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8403 {
8404         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8405         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8406         uint32_t intr_mode;
8407         int error;
8408
8409         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8410                         "0292 PCI device Power Management resume.\n");
8411
8412         /* Restore device state from PCI config space */
8413         pci_set_power_state(pdev, PCI_D0);
8414         pci_restore_state(pdev);
8415
8416         /*
8417          * As the new kernel behavior of pci_restore_state() API call clears
8418          * device saved_state flag, need to save the restored state again.
8419          */
8420         pci_save_state(pdev);
8421
8422         if (pdev->is_busmaster)
8423                 pci_set_master(pdev);
8424
8425          /* Startup the kernel thread for this host adapter. */
8426         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8427                                         "lpfc_worker_%d", phba->brd_no);
8428         if (IS_ERR(phba->worker_thread)) {
8429                 error = PTR_ERR(phba->worker_thread);
8430                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8431                                 "0293 PM resume failed to start worker "
8432                                 "thread: error=x%x.\n", error);
8433                 return error;
8434         }
8435
8436         /* Configure and enable interrupt */
8437         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8438         if (intr_mode == LPFC_INTR_ERROR) {
8439                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8440                                 "0294 PM resume Failed to enable interrupt\n");
8441                 return -EIO;
8442         } else
8443                 phba->intr_mode = intr_mode;
8444
8445         /* Restart HBA and bring it online */
8446         lpfc_sli_brdrestart(phba);
8447         lpfc_online(phba);
8448
8449         /* Log the current active interrupt mode */
8450         lpfc_log_intr_mode(phba, phba->intr_mode);
8451
8452         return 0;
8453 }
8454
8455 /**
8456  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8457  * @pdev: pointer to PCI device.
8458  * @state: the current PCI connection state.
8459  *
8460  * This routine is called from the PCI subsystem for error handling to device
8461  * with SLI-4 interface spec. This function is called by the PCI subsystem
8462  * after a PCI bus error affecting this device has been detected. When this
8463  * function is invoked, it will need to stop all the I/Os and interrupt(s)
8464  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8465  * for the PCI subsystem to perform proper recovery as desired.
8466  *
8467  * Return codes
8468  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8469  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8470  **/
8471 static pci_ers_result_t
8472 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8473 {
8474         return PCI_ERS_RESULT_NEED_RESET;
8475 }
8476
8477 /**
8478  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8479  * @pdev: pointer to PCI device.
8480  *
8481  * This routine is called from the PCI subsystem for error handling to device
8482  * with SLI-4 interface spec. It is called after PCI bus has been reset to
8483  * restart the PCI card from scratch, as if from a cold-boot. During the
8484  * PCI subsystem error recovery, after the driver returns
8485  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8486  * recovery and then call this routine before calling the .resume method to
8487  * recover the device. This function will initialize the HBA device, enable
8488  * the interrupt, but it will just put the HBA to offline state without
8489  * passing any I/O traffic.
8490  *
8491  * Return codes
8492  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8493  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8494  */
8495 static pci_ers_result_t
8496 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8497 {
8498         return PCI_ERS_RESULT_RECOVERED;
8499 }
8500
8501 /**
8502  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8503  * @pdev: pointer to PCI device
8504  *
8505  * This routine is called from the PCI subsystem for error handling to device
8506  * with SLI-4 interface spec. It is called when kernel error recovery tells
8507  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8508  * error recovery. After this call, traffic can start to flow from this device
8509  * again.
8510  **/
8511 static void
8512 lpfc_io_resume_s4(struct pci_dev *pdev)
8513 {
8514         return;
8515 }
8516
8517 /**
8518  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8519  * @pdev: pointer to PCI device
8520  * @pid: pointer to PCI device identifier
8521  *
8522  * This routine is to be registered to the kernel's PCI subsystem. When an
8523  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8524  * at PCI device-specific information of the device and driver to see if the
8525  * driver state that it can support this kind of device. If the match is
8526  * successful, the driver core invokes this routine. This routine dispatches
8527  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8528  * do all the initialization that it needs to do to handle the HBA device
8529  * properly.
8530  *
8531  * Return code
8532  *      0 - driver can claim the device
8533  *      negative value - driver can not claim the device
8534  **/
8535 static int __devinit
8536 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
8537 {
8538         int rc;
8539         struct lpfc_sli_intf intf;
8540
8541         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
8542                 return -ENODEV;
8543
8544         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
8545             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
8546                 rc = lpfc_pci_probe_one_s4(pdev, pid);
8547         else
8548                 rc = lpfc_pci_probe_one_s3(pdev, pid);
8549
8550         return rc;
8551 }
8552
8553 /**
8554  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8555  * @pdev: pointer to PCI device
8556  *
8557  * This routine is to be registered to the kernel's PCI subsystem. When an
8558  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8559  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8560  * remove routine, which will perform all the necessary cleanup for the
8561  * device to be removed from the PCI subsystem properly.
8562  **/
8563 static void __devexit
8564 lpfc_pci_remove_one(struct pci_dev *pdev)
8565 {
8566         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8567         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8568
8569         switch (phba->pci_dev_grp) {
8570         case LPFC_PCI_DEV_LP:
8571                 lpfc_pci_remove_one_s3(pdev);
8572                 break;
8573         case LPFC_PCI_DEV_OC:
8574                 lpfc_pci_remove_one_s4(pdev);
8575                 break;
8576         default:
8577                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8578                                 "1424 Invalid PCI device group: 0x%x\n",
8579                                 phba->pci_dev_grp);
8580                 break;
8581         }
8582         return;
8583 }
8584
8585 /**
8586  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8587  * @pdev: pointer to PCI device
8588  * @msg: power management message
8589  *
8590  * This routine is to be registered to the kernel's PCI subsystem to support
8591  * system Power Management (PM). When PM invokes this method, it dispatches
8592  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8593  * suspend the device.
8594  *
8595  * Return code
8596  *      0 - driver suspended the device
8597  *      Error otherwise
8598  **/
8599 static int
8600 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
8601 {
8602         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8603         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8604         int rc = -ENODEV;
8605
8606         switch (phba->pci_dev_grp) {
8607         case LPFC_PCI_DEV_LP:
8608                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
8609                 break;
8610         case LPFC_PCI_DEV_OC:
8611                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
8612                 break;
8613         default:
8614                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8615                                 "1425 Invalid PCI device group: 0x%x\n",
8616                                 phba->pci_dev_grp);
8617                 break;
8618         }
8619         return rc;
8620 }
8621
8622 /**
8623  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8624  * @pdev: pointer to PCI device
8625  *
8626  * This routine is to be registered to the kernel's PCI subsystem to support
8627  * system Power Management (PM). When PM invokes this method, it dispatches
8628  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8629  * resume the device.
8630  *
8631  * Return code
8632  *      0 - driver suspended the device
8633  *      Error otherwise
8634  **/
8635 static int
8636 lpfc_pci_resume_one(struct pci_dev *pdev)
8637 {
8638         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8639         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8640         int rc = -ENODEV;
8641
8642         switch (phba->pci_dev_grp) {
8643         case LPFC_PCI_DEV_LP:
8644                 rc = lpfc_pci_resume_one_s3(pdev);
8645                 break;
8646         case LPFC_PCI_DEV_OC:
8647                 rc = lpfc_pci_resume_one_s4(pdev);
8648                 break;
8649         default:
8650                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8651                                 "1426 Invalid PCI device group: 0x%x\n",
8652                                 phba->pci_dev_grp);
8653                 break;
8654         }
8655         return rc;
8656 }
8657
8658 /**
8659  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8660  * @pdev: pointer to PCI device.
8661  * @state: the current PCI connection state.
8662  *
8663  * This routine is registered to the PCI subsystem for error handling. This
8664  * function is called by the PCI subsystem after a PCI bus error affecting
8665  * this device has been detected. When this routine is invoked, it dispatches
8666  * the action to the proper SLI-3 or SLI-4 device error detected handling
8667  * routine, which will perform the proper error detected operation.
8668  *
8669  * Return codes
8670  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8671  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8672  **/
8673 static pci_ers_result_t
8674 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
8675 {
8676         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8677         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8678         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8679
8680         switch (phba->pci_dev_grp) {
8681         case LPFC_PCI_DEV_LP:
8682                 rc = lpfc_io_error_detected_s3(pdev, state);
8683                 break;
8684         case LPFC_PCI_DEV_OC:
8685                 rc = lpfc_io_error_detected_s4(pdev, state);
8686                 break;
8687         default:
8688                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8689                                 "1427 Invalid PCI device group: 0x%x\n",
8690                                 phba->pci_dev_grp);
8691                 break;
8692         }
8693         return rc;
8694 }
8695
8696 /**
8697  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8698  * @pdev: pointer to PCI device.
8699  *
8700  * This routine is registered to the PCI subsystem for error handling. This
8701  * function is called after PCI bus has been reset to restart the PCI card
8702  * from scratch, as if from a cold-boot. When this routine is invoked, it
8703  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8704  * routine, which will perform the proper device reset.
8705  *
8706  * Return codes
8707  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8708  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8709  **/
8710 static pci_ers_result_t
8711 lpfc_io_slot_reset(struct pci_dev *pdev)
8712 {
8713         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8714         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8715         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8716
8717         switch (phba->pci_dev_grp) {
8718         case LPFC_PCI_DEV_LP:
8719                 rc = lpfc_io_slot_reset_s3(pdev);
8720                 break;
8721         case LPFC_PCI_DEV_OC:
8722                 rc = lpfc_io_slot_reset_s4(pdev);
8723                 break;
8724         default:
8725                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8726                                 "1428 Invalid PCI device group: 0x%x\n",
8727                                 phba->pci_dev_grp);
8728                 break;
8729         }
8730         return rc;
8731 }
8732
8733 /**
8734  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8735  * @pdev: pointer to PCI device
8736  *
8737  * This routine is registered to the PCI subsystem for error handling. It
8738  * is called when kernel error recovery tells the lpfc driver that it is
8739  * OK to resume normal PCI operation after PCI bus error recovery. When
8740  * this routine is invoked, it dispatches the action to the proper SLI-3
8741  * or SLI-4 device io_resume routine, which will resume the device operation.
8742  **/
8743 static void
8744 lpfc_io_resume(struct pci_dev *pdev)
8745 {
8746         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8747         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8748
8749         switch (phba->pci_dev_grp) {
8750         case LPFC_PCI_DEV_LP:
8751                 lpfc_io_resume_s3(pdev);
8752                 break;
8753         case LPFC_PCI_DEV_OC:
8754                 lpfc_io_resume_s4(pdev);
8755                 break;
8756         default:
8757                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8758                                 "1429 Invalid PCI device group: 0x%x\n",
8759                                 phba->pci_dev_grp);
8760                 break;
8761         }
8762         return;
8763 }
8764
8765 static struct pci_device_id lpfc_id_table[] = {
8766         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
8767                 PCI_ANY_ID, PCI_ANY_ID, },
8768         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
8769                 PCI_ANY_ID, PCI_ANY_ID, },
8770         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
8771                 PCI_ANY_ID, PCI_ANY_ID, },
8772         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
8773                 PCI_ANY_ID, PCI_ANY_ID, },
8774         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
8775                 PCI_ANY_ID, PCI_ANY_ID, },
8776         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
8777                 PCI_ANY_ID, PCI_ANY_ID, },
8778         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
8779                 PCI_ANY_ID, PCI_ANY_ID, },
8780         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
8781                 PCI_ANY_ID, PCI_ANY_ID, },
8782         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
8783                 PCI_ANY_ID, PCI_ANY_ID, },
8784         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
8785                 PCI_ANY_ID, PCI_ANY_ID, },
8786         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
8787                 PCI_ANY_ID, PCI_ANY_ID, },
8788         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
8789                 PCI_ANY_ID, PCI_ANY_ID, },
8790         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
8791                 PCI_ANY_ID, PCI_ANY_ID, },
8792         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
8793                 PCI_ANY_ID, PCI_ANY_ID, },
8794         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
8795                 PCI_ANY_ID, PCI_ANY_ID, },
8796         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
8797                 PCI_ANY_ID, PCI_ANY_ID, },
8798         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
8799                 PCI_ANY_ID, PCI_ANY_ID, },
8800         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
8801                 PCI_ANY_ID, PCI_ANY_ID, },
8802         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
8803                 PCI_ANY_ID, PCI_ANY_ID, },
8804         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
8805                 PCI_ANY_ID, PCI_ANY_ID, },
8806         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
8807                 PCI_ANY_ID, PCI_ANY_ID, },
8808         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
8809                 PCI_ANY_ID, PCI_ANY_ID, },
8810         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
8811                 PCI_ANY_ID, PCI_ANY_ID, },
8812         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
8813                 PCI_ANY_ID, PCI_ANY_ID, },
8814         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
8815                 PCI_ANY_ID, PCI_ANY_ID, },
8816         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
8817                 PCI_ANY_ID, PCI_ANY_ID, },
8818         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
8819                 PCI_ANY_ID, PCI_ANY_ID, },
8820         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
8821                 PCI_ANY_ID, PCI_ANY_ID, },
8822         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
8823                 PCI_ANY_ID, PCI_ANY_ID, },
8824         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
8825                 PCI_ANY_ID, PCI_ANY_ID, },
8826         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
8827                 PCI_ANY_ID, PCI_ANY_ID, },
8828         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
8829                 PCI_ANY_ID, PCI_ANY_ID, },
8830         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
8831                 PCI_ANY_ID, PCI_ANY_ID, },
8832         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
8833                 PCI_ANY_ID, PCI_ANY_ID, },
8834         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
8835                 PCI_ANY_ID, PCI_ANY_ID, },
8836         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
8837                 PCI_ANY_ID, PCI_ANY_ID, },
8838         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
8839                 PCI_ANY_ID, PCI_ANY_ID, },
8840         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
8841                 PCI_ANY_ID, PCI_ANY_ID, },
8842         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
8843                 PCI_ANY_ID, PCI_ANY_ID, },
8844         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
8845                 PCI_ANY_ID, PCI_ANY_ID, },
8846         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
8847                 PCI_ANY_ID, PCI_ANY_ID, },
8848         { 0 }
8849 };
8850
8851 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
8852
8853 static struct pci_error_handlers lpfc_err_handler = {
8854         .error_detected = lpfc_io_error_detected,
8855         .slot_reset = lpfc_io_slot_reset,
8856         .resume = lpfc_io_resume,
8857 };
8858
8859 static struct pci_driver lpfc_driver = {
8860         .name           = LPFC_DRIVER_NAME,
8861         .id_table       = lpfc_id_table,
8862         .probe          = lpfc_pci_probe_one,
8863         .remove         = __devexit_p(lpfc_pci_remove_one),
8864         .suspend        = lpfc_pci_suspend_one,
8865         .resume         = lpfc_pci_resume_one,
8866         .err_handler    = &lpfc_err_handler,
8867 };
8868
8869 /**
8870  * lpfc_init - lpfc module initialization routine
8871  *
8872  * This routine is to be invoked when the lpfc module is loaded into the
8873  * kernel. The special kernel macro module_init() is used to indicate the
8874  * role of this routine to the kernel as lpfc module entry point.
8875  *
8876  * Return codes
8877  *   0 - successful
8878  *   -ENOMEM - FC attach transport failed
8879  *   all others - failed
8880  */
8881 static int __init
8882 lpfc_init(void)
8883 {
8884         int error = 0;
8885
8886         printk(LPFC_MODULE_DESC "\n");
8887         printk(LPFC_COPYRIGHT "\n");
8888
8889         if (lpfc_enable_npiv) {
8890                 lpfc_transport_functions.vport_create = lpfc_vport_create;
8891                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
8892         }
8893         lpfc_transport_template =
8894                                 fc_attach_transport(&lpfc_transport_functions);
8895         if (lpfc_transport_template == NULL)
8896                 return -ENOMEM;
8897         if (lpfc_enable_npiv) {
8898                 lpfc_vport_transport_template =
8899                         fc_attach_transport(&lpfc_vport_transport_functions);
8900                 if (lpfc_vport_transport_template == NULL) {
8901                         fc_release_transport(lpfc_transport_template);
8902                         return -ENOMEM;
8903                 }
8904         }
8905         error = pci_register_driver(&lpfc_driver);
8906         if (error) {
8907                 fc_release_transport(lpfc_transport_template);
8908                 if (lpfc_enable_npiv)
8909                         fc_release_transport(lpfc_vport_transport_template);
8910         }
8911
8912         return error;
8913 }
8914
8915 /**
8916  * lpfc_exit - lpfc module removal routine
8917  *
8918  * This routine is invoked when the lpfc module is removed from the kernel.
8919  * The special kernel macro module_exit() is used to indicate the role of
8920  * this routine to the kernel as lpfc module exit point.
8921  */
8922 static void __exit
8923 lpfc_exit(void)
8924 {
8925         pci_unregister_driver(&lpfc_driver);
8926         fc_release_transport(lpfc_transport_template);
8927         if (lpfc_enable_npiv)
8928                 fc_release_transport(lpfc_vport_transport_template);
8929         if (_dump_buf_data) {
8930                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
8931                                 "_dump_buf_data at 0x%p\n",
8932                                 (1L << _dump_buf_data_order), _dump_buf_data);
8933                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
8934         }
8935
8936         if (_dump_buf_dif) {
8937                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
8938                                 "_dump_buf_dif at 0x%p\n",
8939                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
8940                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
8941         }
8942 }
8943
8944 module_init(lpfc_init);
8945 module_exit(lpfc_exit);
8946 MODULE_LICENSE("GPL");
8947 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
8948 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
8949 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);