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) 2004-2013 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/module.h>
  28 #include <linux/kthread.h>
  29 #include <linux/pci.h>
  30 #include <linux/spinlock.h>
  31 #include <linux/ctype.h>
  32 #include <linux/aer.h>
  33 #include <linux/slab.h>
  34 #include <linux/firmware.h>
  35 #include <linux/miscdevice.h>
  36 #include <linux/percpu.h>
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_device.h>
  40 #include <scsi/scsi_host.h>
  41 #include <scsi/scsi_transport_fc.h>
  42
  43 #include "lpfc_hw4.h"
  44 #include "lpfc_hw.h"
  45 #include "lpfc_sli.h"
  46 #include "lpfc_sli4.h"
  47 #include "lpfc_nl.h"
  48 #include "lpfc_disc.h"
  49 #include "lpfc_scsi.h"
  50 #include "lpfc.h"
  51 #include "lpfc_logmsg.h"
  52 #include "lpfc_crtn.h"
  53 #include "lpfc_vport.h"
  54 #include "lpfc_version.h"
  55
  56 char *_dump_buf_data;
  57 unsigned long _dump_buf_data_order;
  58 char *_dump_buf_dif;
  59 unsigned long _dump_buf_dif_order;
  60 spinlock_t _dump_buf_lock;
  61
  62 /* Used when mapping IRQ vectors in a driver centric manner */
  63 uint16_t *lpfc_used_cpu;
  64 uint32_t lpfc_present_cpu;
  65
  66 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  67 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  68 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  69 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  70 static int lpfc_setup_endian_order(struct lpfc_hba *);
  71 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  72 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  73 static void lpfc_init_sgl_list(struct lpfc_hba *);
  74 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  75 static void lpfc_free_active_sgl(struct lpfc_hba *);
  76 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  77 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  78 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  79 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  80 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  81 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  82 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  83
  84 static struct scsi_transport_template *lpfc_transport_template = NULL;
  85 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  86 static DEFINE_IDR(lpfc_hba_index);
  87
  88 /**
  89  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  90  * @phba: pointer to lpfc hba data structure.
  91  *
  92  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  93  * mailbox command. It retrieves the revision information from the HBA and
  94  * collects the Vital Product Data (VPD) about the HBA for preparing the
  95  * configuration of the HBA.
  96  *
  97  * Return codes:
  98  *   0 - success.
  99  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 100  *   Any other value - indicates an error.
 101  **/
 102 int
 103 lpfc_config_port_prep(struct lpfc_hba *phba)
 104 {
 105         lpfc_vpd_t *vp = &phba->vpd;
 106         int i = 0, rc;
 107         LPFC_MBOXQ_t *pmb;
 108         MAILBOX_t *mb;
 109         char *lpfc_vpd_data = NULL;
 110         uint16_t offset = 0;
 111         static char licensed[56] =
 112                     "key unlock for use with gnu public licensed code only\0";
 113         static int init_key = 1;
 114
 115         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 116         if (!pmb) {
 117                 phba->link_state = LPFC_HBA_ERROR;
 118                 return -ENOMEM;
 119         }
 120
 121         mb = &pmb->u.mb;
 122         phba->link_state = LPFC_INIT_MBX_CMDS;
 123
 124         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 125                 if (init_key) {
 126                         uint32_t *ptext = (uint32_t *) licensed;
 127
 128                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 129                                 *ptext = cpu_to_be32(*ptext);
 130                         init_key = 0;
 131                 }
 132
 133                 lpfc_read_nv(phba, pmb);
 134                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 135                         sizeof (mb->un.varRDnvp.rsvd3));
 136                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 137                          sizeof (licensed));
 138
 139                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 140
 141                 if (rc != MBX_SUCCESS) {
 142                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 143                                         "0324 Config Port initialization "
 144                                         "error, mbxCmd x%x READ_NVPARM, "
 145                                         "mbxStatus x%x\n",
 146                                         mb->mbxCommand, mb->mbxStatus);
 147                         mempool_free(pmb, phba->mbox_mem_pool);
 148                         return -ERESTART;
 149                 }
 150                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 151                        sizeof(phba->wwnn));
 152                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 153                        sizeof(phba->wwpn));
 154         }
 155
 156         phba->sli3_options = 0x0;
 157
 158         /* Setup and issue mailbox READ REV command */
 159         lpfc_read_rev(phba, pmb);
 160         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 161         if (rc != MBX_SUCCESS) {
 162                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 163                                 "0439 Adapter failed to init, mbxCmd x%x "
 164                                 "READ_REV, mbxStatus x%x\n",
 165                                 mb->mbxCommand, mb->mbxStatus);
 166                 mempool_free( pmb, phba->mbox_mem_pool);
 167                 return -ERESTART;
 168         }
 169
 170
 171         /*
 172          * The value of rr must be 1 since the driver set the cv field to 1.
 173          * This setting requires the FW to set all revision fields.
 174          */
 175         if (mb->un.varRdRev.rr == 0) {
 176                 vp->rev.rBit = 0;
 177                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 178                                 "0440 Adapter failed to init, READ_REV has "
 179                                 "missing revision information.\n");
 180                 mempool_free(pmb, phba->mbox_mem_pool);
 181                 return -ERESTART;
 182         }
 183
 184         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 185                 mempool_free(pmb, phba->mbox_mem_pool);
 186                 return -EINVAL;
 187         }
 188
 189         /* Save information as VPD data */
 190         vp->rev.rBit = 1;
 191         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 192         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 193         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 194         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 195         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 196         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 197         vp->rev.smRev = mb->un.varRdRev.smRev;
 198         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 199         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 200         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 201         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 202         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 203         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 204         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 205         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 206
 207         /* If the sli feature level is less then 9, we must
 208          * tear down all RPIs and VPIs on link down if NPIV
 209          * is enabled.
 210          */
 211         if (vp->rev.feaLevelHigh < 9)
 212                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 213
 214         if (lpfc_is_LC_HBA(phba->pcidev->device))
 215                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 216                                                 sizeof (phba->RandomData));
 217
 218         /* Get adapter VPD information */
 219         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 220         if (!lpfc_vpd_data)
 221                 goto out_free_mbox;
 222         do {
 223                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 224                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 225
 226                 if (rc != MBX_SUCCESS) {
 227                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 228                                         "0441 VPD not present on adapter, "
 229                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 230                                         mb->mbxCommand, mb->mbxStatus);
 231                         mb->un.varDmp.word_cnt = 0;
 232                 }
 233                 /* dump mem may return a zero when finished or we got a
 234                  * mailbox error, either way we are done.
 235                  */
 236                 if (mb->un.varDmp.word_cnt == 0)
 237                         break;
 238                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 239                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 240                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 241                                       lpfc_vpd_data + offset,
 242                                       mb->un.varDmp.word_cnt);
 243                 offset += mb->un.varDmp.word_cnt;
 244         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 245         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 246
 247         kfree(lpfc_vpd_data);
 248 out_free_mbox:
 249         mempool_free(pmb, phba->mbox_mem_pool);
 250         return 0;
 251 }
 252
 253 /**
 254  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 255  * @phba: pointer to lpfc hba data structure.
 256  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 257  *
 258  * This is the completion handler for driver's configuring asynchronous event
 259  * mailbox command to the device. If the mailbox command returns successfully,
 260  * it will set internal async event support flag to 1; otherwise, it will
 261  * set internal async event support flag to 0.
 262  **/
 263 static void
 264 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 265 {
 266         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 267                 phba->temp_sensor_support = 1;
 268         else
 269                 phba->temp_sensor_support = 0;
 270         mempool_free(pmboxq, phba->mbox_mem_pool);
 271         return;
 272 }
 273
 274 /**
 275  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 276  * @phba: pointer to lpfc hba data structure.
 277  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 278  *
 279  * This is the completion handler for dump mailbox command for getting
 280  * wake up parameters. When this command complete, the response contain
 281  * Option rom version of the HBA. This function translate the version number
 282  * into a human readable string and store it in OptionROMVersion.
 283  **/
 284 static void
 285 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 286 {
 287         struct prog_id *prg;
 288         uint32_t prog_id_word;
 289         char dist = ' ';
 290         /* character array used for decoding dist type. */
 291         char dist_char[] = "nabx";
 292
 293         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 294                 mempool_free(pmboxq, phba->mbox_mem_pool);
 295                 return;
 296         }
 297
 298         prg = (struct prog_id *) &prog_id_word;
 299
 300         /* word 7 contain option rom version */
 301         prog_id_word = pmboxq->u.mb.un.varWords[7];
 302
 303         /* Decode the Option rom version word to a readable string */
 304         if (prg->dist < 4)
 305                 dist = dist_char[prg->dist];
 306
 307         if ((prg->dist == 3) && (prg->num == 0))
 308                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 309                         prg->ver, prg->rev, prg->lev);
 310         else
 311                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 312                         prg->ver, prg->rev, prg->lev,
 313                         dist, prg->num);
 314         mempool_free(pmboxq, phba->mbox_mem_pool);
 315         return;
 316 }
 317
 318 /**
 319  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 320  *      cfg_soft_wwnn, cfg_soft_wwpn
 321  * @vport: pointer to lpfc vport data structure.
 322  *
 323  *
 324  * Return codes
 325  *   None.
 326  **/
 327 void
 328 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 329 {
 330         /* If the soft name exists then update it using the service params */
 331         if (vport->phba->cfg_soft_wwnn)
 332                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 333                            vport->fc_sparam.nodeName.u.wwn);
 334         if (vport->phba->cfg_soft_wwpn)
 335                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 336                            vport->fc_sparam.portName.u.wwn);
 337
 338         /*
 339          * If the name is empty or there exists a soft name
 340          * then copy the service params name, otherwise use the fc name
 341          */
 342         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 343                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 344                         sizeof(struct lpfc_name));
 345         else
 346                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 347                         sizeof(struct lpfc_name));
 348
 349         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 350                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 351                         sizeof(struct lpfc_name));
 352         else
 353                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 354                         sizeof(struct lpfc_name));
 355 }
 356
 357 /**
 358  * lpfc_config_port_post - Perform lpfc initialization after config port
 359  * @phba: pointer to lpfc hba data structure.
 360  *
 361  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 362  * command call. It performs all internal resource and state setups on the
 363  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 364  * ELS ring timers, etc.
 365  *
 366  * Return codes
 367  *   0 - success.
 368  *   Any other value - error.
 369  **/
 370 int
 371 lpfc_config_port_post(struct lpfc_hba *phba)
 372 {
 373         struct lpfc_vport *vport = phba->pport;
 374         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 375         LPFC_MBOXQ_t *pmb;
 376         MAILBOX_t *mb;
 377         struct lpfc_dmabuf *mp;
 378         struct lpfc_sli *psli = &phba->sli;
 379         uint32_t status, timeout;
 380         int i, j;
 381         int rc;
 382
 383         spin_lock_irq(&phba->hbalock);
 384         /*
 385          * If the Config port completed correctly the HBA is not
 386          * over heated any more.
 387          */
 388         if (phba->over_temp_state == HBA_OVER_TEMP)
 389                 phba->over_temp_state = HBA_NORMAL_TEMP;
 390         spin_unlock_irq(&phba->hbalock);
 391
 392         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 393         if (!pmb) {
 394                 phba->link_state = LPFC_HBA_ERROR;
 395                 return -ENOMEM;
 396         }
 397         mb = &pmb->u.mb;
 398
 399         /* Get login parameters for NID.  */
 400         rc = lpfc_read_sparam(phba, pmb, 0);
 401         if (rc) {
 402                 mempool_free(pmb, phba->mbox_mem_pool);
 403                 return -ENOMEM;
 404         }
 405
 406         pmb->vport = vport;
 407         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 408                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 409                                 "0448 Adapter failed init, mbxCmd x%x "
 410                                 "READ_SPARM mbxStatus x%x\n",
 411                                 mb->mbxCommand, mb->mbxStatus);
 412                 phba->link_state = LPFC_HBA_ERROR;
 413                 mp = (struct lpfc_dmabuf *) pmb->context1;
 414                 mempool_free(pmb, phba->mbox_mem_pool);
 415                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 416                 kfree(mp);
 417                 return -EIO;
 418         }
 419
 420         mp = (struct lpfc_dmabuf *) pmb->context1;
 421
 422         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 423         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 424         kfree(mp);
 425         pmb->context1 = NULL;
 426         lpfc_update_vport_wwn(vport);
 427
 428         /* Update the fc_host data structures with new wwn. */
 429         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 430         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 431         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 432
 433         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 434         /* This should be consolidated into parse_vpd ? - mr */
 435         if (phba->SerialNumber[0] == 0) {
 436                 uint8_t *outptr;
 437
 438                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 439                 for (i = 0; i < 12; i++) {
 440                         status = *outptr++;
 441                         j = ((status & 0xf0) >> 4);
 442                         if (j <= 9)
 443                                 phba->SerialNumber[i] =
 444                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 445                         else
 446                                 phba->SerialNumber[i] =
 447                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 448                         i++;
 449                         j = (status & 0xf);
 450                         if (j <= 9)
 451                                 phba->SerialNumber[i] =
 452                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 453                         else
 454                                 phba->SerialNumber[i] =
 455                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 456                 }
 457         }
 458
 459         lpfc_read_config(phba, pmb);
 460         pmb->vport = vport;
 461         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 462                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 463                                 "0453 Adapter failed to init, mbxCmd x%x "
 464                                 "READ_CONFIG, mbxStatus x%x\n",
 465                                 mb->mbxCommand, mb->mbxStatus);
 466                 phba->link_state = LPFC_HBA_ERROR;
 467                 mempool_free( pmb, phba->mbox_mem_pool);
 468                 return -EIO;
 469         }
 470
 471         /* Check if the port is disabled */
 472         lpfc_sli_read_link_ste(phba);
 473
 474         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 475         i = (mb->un.varRdConfig.max_xri + 1);
 476         if (phba->cfg_hba_queue_depth > i) {
 477                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 478                                 "3359 HBA queue depth changed from %d to %d\n",
 479                                 phba->cfg_hba_queue_depth, i);
 480                 phba->cfg_hba_queue_depth = i;
 481         }
 482
 483         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 484         i = (mb->un.varRdConfig.max_xri >> 3);
 485         if (phba->pport->cfg_lun_queue_depth > i) {
 486                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 487                                 "3360 LUN queue depth changed from %d to %d\n",
 488                                 phba->pport->cfg_lun_queue_depth, i);
 489                 phba->pport->cfg_lun_queue_depth = i;
 490         }
 491
 492         phba->lmt = mb->un.varRdConfig.lmt;
 493
 494         /* Get the default values for Model Name and Description */
 495         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 496
 497         phba->link_state = LPFC_LINK_DOWN;
 498
 499         /* Only process IOCBs on ELS ring till hba_state is READY */
 500         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 501                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 502         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 503                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 504         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 505                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 506
 507         /* Post receive buffers for desired rings */
 508         if (phba->sli_rev != 3)
 509                 lpfc_post_rcv_buf(phba);
 510
 511         /*
 512          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 513          */
 514         if (phba->intr_type == MSIX) {
 515                 rc = lpfc_config_msi(phba, pmb);
 516                 if (rc) {
 517                         mempool_free(pmb, phba->mbox_mem_pool);
 518                         return -EIO;
 519                 }
 520                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 521                 if (rc != MBX_SUCCESS) {
 522                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 523                                         "0352 Config MSI mailbox command "
 524                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 525                                         pmb->u.mb.mbxCommand,
 526                                         pmb->u.mb.mbxStatus);
 527                         mempool_free(pmb, phba->mbox_mem_pool);
 528                         return -EIO;
 529                 }
 530         }
 531
 532         spin_lock_irq(&phba->hbalock);
 533         /* Initialize ERATT handling flag */
 534         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 535
 536         /* Enable appropriate host interrupts */
 537         if (lpfc_readl(phba->HCregaddr, &status)) {
 538                 spin_unlock_irq(&phba->hbalock);
 539                 return -EIO;
 540         }
 541         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 542         if (psli->num_rings > 0)
 543                 status |= HC_R0INT_ENA;
 544         if (psli->num_rings > 1)
 545                 status |= HC_R1INT_ENA;
 546         if (psli->num_rings > 2)
 547                 status |= HC_R2INT_ENA;
 548         if (psli->num_rings > 3)
 549                 status |= HC_R3INT_ENA;
 550
 551         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 552             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 553                 status &= ~(HC_R0INT_ENA);
 554
 555         writel(status, phba->HCregaddr);
 556         readl(phba->HCregaddr); /* flush */
 557         spin_unlock_irq(&phba->hbalock);
 558
 559         /* Set up ring-0 (ELS) timer */
 560         timeout = phba->fc_ratov * 2;
 561         mod_timer(&vport->els_tmofunc,
 562                   jiffies + msecs_to_jiffies(1000 * timeout));
 563         /* Set up heart beat (HB) timer */
 564         mod_timer(&phba->hb_tmofunc,
 565                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 566         phba->hb_outstanding = 0;
 567         phba->last_completion_time = jiffies;
 568         /* Set up error attention (ERATT) polling timer */
 569         mod_timer(&phba->eratt_poll,
 570                   jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
 571
 572         if (phba->hba_flag & LINK_DISABLED) {
 573                 lpfc_printf_log(phba,
 574                         KERN_ERR, LOG_INIT,
 575                         "2598 Adapter Link is disabled.\n");
 576                 lpfc_down_link(phba, pmb);
 577                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 578                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 579                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 580                         lpfc_printf_log(phba,
 581                         KERN_ERR, LOG_INIT,
 582                         "2599 Adapter failed to issue DOWN_LINK"
 583                         " mbox command rc 0x%x\n", rc);
 584
 585                         mempool_free(pmb, phba->mbox_mem_pool);
 586                         return -EIO;
 587                 }
 588         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 589                 mempool_free(pmb, phba->mbox_mem_pool);
 590                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 591                 if (rc)
 592                         return rc;
 593         }
 594         /* MBOX buffer will be freed in mbox compl */
 595         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 596         if (!pmb) {
 597                 phba->link_state = LPFC_HBA_ERROR;
 598                 return -ENOMEM;
 599         }
 600
 601         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 602         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 603         pmb->vport = phba->pport;
 604         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 605
 606         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 607                 lpfc_printf_log(phba,
 608                                 KERN_ERR,
 609                                 LOG_INIT,
 610                                 "0456 Adapter failed to issue "
 611                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 612                                 rc);
 613                 mempool_free(pmb, phba->mbox_mem_pool);
 614         }
 615
 616         /* Get Option rom version */
 617         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 618         if (!pmb) {
 619                 phba->link_state = LPFC_HBA_ERROR;
 620                 return -ENOMEM;
 621         }
 622
 623         lpfc_dump_wakeup_param(phba, pmb);
 624         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 625         pmb->vport = phba->pport;
 626         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 627
 628         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 629                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 630                                 "to get Option ROM version status x%x\n", rc);
 631                 mempool_free(pmb, phba->mbox_mem_pool);
 632         }
 633
 634         return 0;
 635 }
 636
 637 /**
 638  * lpfc_hba_init_link - Initialize the FC link
 639  * @phba: pointer to lpfc hba data structure.
 640  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 641  *
 642  * This routine will issue the INIT_LINK mailbox command call.
 643  * It is available to other drivers through the lpfc_hba data
 644  * structure for use as a delayed link up mechanism with the
 645  * module parameter lpfc_suppress_link_up.
 646  *
 647  * Return code
 648  *              0 - success
 649  *              Any other value - error
 650  **/
 651 int
 652 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 653 {
 654         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 655 }
 656
 657 /**
 658  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 659  * @phba: pointer to lpfc hba data structure.
 660  * @fc_topology: desired fc topology.
 661  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 662  *
 663  * This routine will issue the INIT_LINK mailbox command call.
 664  * It is available to other drivers through the lpfc_hba data
 665  * structure for use as a delayed link up mechanism with the
 666  * module parameter lpfc_suppress_link_up.
 667  *
 668  * Return code
 669  *              0 - success
 670  *              Any other value - error
 671  **/
 672 int
 673 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 674                                uint32_t flag)
 675 {
 676         struct lpfc_vport *vport = phba->pport;
 677         LPFC_MBOXQ_t *pmb;
 678         MAILBOX_t *mb;
 679         int rc;
 680
 681         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 682         if (!pmb) {
 683                 phba->link_state = LPFC_HBA_ERROR;
 684                 return -ENOMEM;
 685         }
 686         mb = &pmb->u.mb;
 687         pmb->vport = vport;
 688
 689         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 690             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 691              !(phba->lmt & LMT_1Gb)) ||
 692             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 693              !(phba->lmt & LMT_2Gb)) ||
 694             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 695              !(phba->lmt & LMT_4Gb)) ||
 696             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 697              !(phba->lmt & LMT_8Gb)) ||
 698             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 699              !(phba->lmt & LMT_10Gb)) ||
 700             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 701              !(phba->lmt & LMT_16Gb))) {
 702                 /* Reset link speed to auto */
 703                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 704                         "1302 Invalid speed for this board:%d "
 705                         "Reset link speed to auto.\n",
 706                         phba->cfg_link_speed);
 707                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 708         }
 709         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 710         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 711         if (phba->sli_rev < LPFC_SLI_REV4)
 712                 lpfc_set_loopback_flag(phba);
 713         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 714         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 715                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 716                         "0498 Adapter failed to init, mbxCmd x%x "
 717                         "INIT_LINK, mbxStatus x%x\n",
 718                         mb->mbxCommand, mb->mbxStatus);
 719                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 720                         /* Clear all interrupt enable conditions */
 721                         writel(0, phba->HCregaddr);
 722                         readl(phba->HCregaddr); /* flush */
 723                         /* Clear all pending interrupts */
 724                         writel(0xffffffff, phba->HAregaddr);
 725                         readl(phba->HAregaddr); /* flush */
 726                 }
 727                 phba->link_state = LPFC_HBA_ERROR;
 728                 if (rc != MBX_BUSY || flag == MBX_POLL)
 729                         mempool_free(pmb, phba->mbox_mem_pool);
 730                 return -EIO;
 731         }
 732         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 733         if (flag == MBX_POLL)
 734                 mempool_free(pmb, phba->mbox_mem_pool);
 735
 736         return 0;
 737 }
 738
 739 /**
 740  * lpfc_hba_down_link - this routine downs the FC link
 741  * @phba: pointer to lpfc hba data structure.
 742  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 743  *
 744  * This routine will issue the DOWN_LINK mailbox command call.
 745  * It is available to other drivers through the lpfc_hba data
 746  * structure for use to stop the link.
 747  *
 748  * Return code
 749  *              0 - success
 750  *              Any other value - error
 751  **/
 752 int
 753 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 754 {
 755         LPFC_MBOXQ_t *pmb;
 756         int rc;
 757
 758         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 759         if (!pmb) {
 760                 phba->link_state = LPFC_HBA_ERROR;
 761                 return -ENOMEM;
 762         }
 763
 764         lpfc_printf_log(phba,
 765                 KERN_ERR, LOG_INIT,
 766                 "0491 Adapter Link is disabled.\n");
 767         lpfc_down_link(phba, pmb);
 768         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 769         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 770         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 771                 lpfc_printf_log(phba,
 772                 KERN_ERR, LOG_INIT,
 773                 "2522 Adapter failed to issue DOWN_LINK"
 774                 " mbox command rc 0x%x\n", rc);
 775
 776                 mempool_free(pmb, phba->mbox_mem_pool);
 777                 return -EIO;
 778         }
 779         if (flag == MBX_POLL)
 780                 mempool_free(pmb, phba->mbox_mem_pool);
 781
 782         return 0;
 783 }
 784
 785 /**
 786  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 787  * @phba: pointer to lpfc HBA data structure.
 788  *
 789  * This routine will do LPFC uninitialization before the HBA is reset when
 790  * bringing down the SLI Layer.
 791  *
 792  * Return codes
 793  *   0 - success.
 794  *   Any other value - error.
 795  **/
 796 int
 797 lpfc_hba_down_prep(struct lpfc_hba *phba)
 798 {
 799         struct lpfc_vport **vports;
 800         int i;
 801
 802         if (phba->sli_rev <= LPFC_SLI_REV3) {
 803                 /* Disable interrupts */
 804                 writel(0, phba->HCregaddr);
 805                 readl(phba->HCregaddr); /* flush */
 806         }
 807
 808         if (phba->pport->load_flag & FC_UNLOADING)
 809                 lpfc_cleanup_discovery_resources(phba->pport);
 810         else {
 811                 vports = lpfc_create_vport_work_array(phba);
 812                 if (vports != NULL)
 813                         for (i = 0; i <= phba->max_vports &&
 814                                 vports[i] != NULL; i++)
 815                                 lpfc_cleanup_discovery_resources(vports[i]);
 816                 lpfc_destroy_vport_work_array(phba, vports);
 817         }
 818         return 0;
 819 }
 820
 821 /**
 822  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 823  * @phba: pointer to lpfc HBA data structure.
 824  *
 825  * This routine will do uninitialization after the HBA is reset when bring
 826  * down the SLI Layer.
 827  *
 828  * Return codes
 829  *   0 - success.
 830  *   Any other value - error.
 831  **/
 832 static int
 833 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 834 {
 835         struct lpfc_sli *psli = &phba->sli;
 836         struct lpfc_sli_ring *pring;
 837         struct lpfc_dmabuf *mp, *next_mp;
 838         LIST_HEAD(completions);
 839         int i;
 840
 841         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 842                 lpfc_sli_hbqbuf_free_all(phba);
 843         else {
 844                 /* Cleanup preposted buffers on the ELS ring */
 845                 pring = &psli->ring[LPFC_ELS_RING];
 846                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 847                         list_del(&mp->list);
 848                         pring->postbufq_cnt--;
 849                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 850                         kfree(mp);
 851                 }
 852         }
 853
 854         spin_lock_irq(&phba->hbalock);
 855         for (i = 0; i < psli->num_rings; i++) {
 856                 pring = &psli->ring[i];
 857
 858                 /* At this point in time the HBA is either reset or DOA. Either
 859                  * way, nothing should be on txcmplq as it will NEVER complete.
 860                  */
 861                 list_splice_init(&pring->txcmplq, &completions);
 862                 spin_unlock_irq(&phba->hbalock);
 863
 864                 /* Cancel all the IOCBs from the completions list */
 865                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 866                                       IOERR_SLI_ABORTED);
 867
 868                 lpfc_sli_abort_iocb_ring(phba, pring);
 869                 spin_lock_irq(&phba->hbalock);
 870         }
 871         spin_unlock_irq(&phba->hbalock);
 872
 873         return 0;
 874 }
 875
 876 /**
 877  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 878  * @phba: pointer to lpfc HBA data structure.
 879  *
 880  * This routine will do uninitialization after the HBA is reset when bring
 881  * down the SLI Layer.
 882  *
 883  * Return codes
 884  *   0 - success.
 885  *   Any other value - error.
 886  **/
 887 static int
 888 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 889 {
 890         struct lpfc_scsi_buf *psb, *psb_next;
 891         LIST_HEAD(aborts);
 892         int ret;
 893         unsigned long iflag = 0;
 894         struct lpfc_sglq *sglq_entry = NULL;
 895
 896         ret = lpfc_hba_down_post_s3(phba);
 897         if (ret)
 898                 return ret;
 899         /* At this point in time the HBA is either reset or DOA. Either
 900          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 901          * on the lpfc_sgl_list so that it can either be freed if the
 902          * driver is unloading or reposted if the driver is restarting
 903          * the port.
 904          */
 905         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 906                                         /* scsl_buf_list */
 907         /* abts_sgl_list_lock required because worker thread uses this
 908          * list.
 909          */
 910         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 911         list_for_each_entry(sglq_entry,
 912                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 913                 sglq_entry->state = SGL_FREED;
 914
 915         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 916                         &phba->sli4_hba.lpfc_sgl_list);
 917         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 918         /* abts_scsi_buf_list_lock required because worker thread uses this
 919          * list.
 920          */
 921         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 922         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 923                         &aborts);
 924         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 925         spin_unlock_irq(&phba->hbalock);
 926
 927         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 928                 psb->pCmd = NULL;
 929                 psb->status = IOSTAT_SUCCESS;
 930         }
 931         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
 932         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
 933         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
 934         return 0;
 935 }
 936
 937 /**
 938  * lpfc_hba_down_post - Wrapper func for hba down post routine
 939  * @phba: pointer to lpfc HBA data structure.
 940  *
 941  * This routine wraps the actual SLI3 or SLI4 routine for performing
 942  * uninitialization after the HBA is reset when bring down the SLI Layer.
 943  *
 944  * Return codes
 945  *   0 - success.
 946  *   Any other value - error.
 947  **/
 948 int
 949 lpfc_hba_down_post(struct lpfc_hba *phba)
 950 {
 951         return (*phba->lpfc_hba_down_post)(phba);
 952 }
 953
 954 /**
 955  * lpfc_hb_timeout - The HBA-timer timeout handler
 956  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 957  *
 958  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 959  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 960  * work-port-events bitmap and the worker thread is notified. This timeout
 961  * event will be used by the worker thread to invoke the actual timeout
 962  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 963  * be performed in the timeout handler and the HBA timeout event bit shall
 964  * be cleared by the worker thread after it has taken the event bitmap out.
 965  **/
 966 static void
 967 lpfc_hb_timeout(unsigned long ptr)
 968 {
 969         struct lpfc_hba *phba;
 970         uint32_t tmo_posted;
 971         unsigned long iflag;
 972
 973         phba = (struct lpfc_hba *)ptr;
 974
 975         /* Check for heart beat timeout conditions */
 976         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 977         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 978         if (!tmo_posted)
 979                 phba->pport->work_port_events |= WORKER_HB_TMO;
 980         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 981
 982         /* Tell the worker thread there is work to do */
 983         if (!tmo_posted)
 984                 lpfc_worker_wake_up(phba);
 985         return;
 986 }
 987
 988 /**
 989  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 990  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 991  *
 992  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 993  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 994  * work-port-events bitmap and the worker thread is notified. This timeout
 995  * event will be used by the worker thread to invoke the actual timeout
 996  * handler routine, lpfc_rrq_handler. Any periodical operations will
 997  * be performed in the timeout handler and the RRQ timeout event bit shall
 998  * be cleared by the worker thread after it has taken the event bitmap out.
 999  **/
1000 static void
1001 lpfc_rrq_timeout(unsigned long ptr)
1002 {
1003         struct lpfc_hba *phba;
1004         unsigned long iflag;
1005
1006         phba = (struct lpfc_hba *)ptr;
1007         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1008         phba->hba_flag |= HBA_RRQ_ACTIVE;
1009         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1010         lpfc_worker_wake_up(phba);
1011 }
1012
1013 /**
1014  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1015  * @phba: pointer to lpfc hba data structure.
1016  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1017  *
1018  * This is the callback function to the lpfc heart-beat mailbox command.
1019  * If configured, the lpfc driver issues the heart-beat mailbox command to
1020  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1021  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1022  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1023  * heart-beat outstanding state. Once the mailbox command comes back and
1024  * no error conditions detected, the heart-beat mailbox command timer is
1025  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1026  * state is cleared for the next heart-beat. If the timer expired with the
1027  * heart-beat outstanding state set, the driver will put the HBA offline.
1028  **/
1029 static void
1030 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1031 {
1032         unsigned long drvr_flag;
1033
1034         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1035         phba->hb_outstanding = 0;
1036         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1037
1038         /* Check and reset heart-beat timer is necessary */
1039         mempool_free(pmboxq, phba->mbox_mem_pool);
1040         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1041                 !(phba->link_state == LPFC_HBA_ERROR) &&
1042                 !(phba->pport->load_flag & FC_UNLOADING))
1043                 mod_timer(&phba->hb_tmofunc,
1044                           jiffies +
1045                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1046         return;
1047 }
1048
1049 /**
1050  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1051  * @phba: pointer to lpfc hba data structure.
1052  *
1053  * This is the actual HBA-timer timeout handler to be invoked by the worker
1054  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1055  * handler performs any periodic operations needed for the device. If such
1056  * periodic event has already been attended to either in the interrupt handler
1057  * or by processing slow-ring or fast-ring events within the HBA-timer
1058  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1059  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1060  * is configured and there is no heart-beat mailbox command outstanding, a
1061  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1062  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1063  * to offline.
1064  **/
1065 void
1066 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1067 {
1068         struct lpfc_vport **vports;
1069         LPFC_MBOXQ_t *pmboxq;
1070         struct lpfc_dmabuf *buf_ptr;
1071         int retval, i;
1072         struct lpfc_sli *psli = &phba->sli;
1073         LIST_HEAD(completions);
1074
1075         vports = lpfc_create_vport_work_array(phba);
1076         if (vports != NULL)
1077                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1078                         lpfc_rcv_seq_check_edtov(vports[i]);
1079         lpfc_destroy_vport_work_array(phba, vports);
1080
1081         if ((phba->link_state == LPFC_HBA_ERROR) ||
1082                 (phba->pport->load_flag & FC_UNLOADING) ||
1083                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1084                 return;
1085
1086         spin_lock_irq(&phba->pport->work_port_lock);
1087
1088         if (time_after(phba->last_completion_time +
1089                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1090                         jiffies)) {
1091                 spin_unlock_irq(&phba->pport->work_port_lock);
1092                 if (!phba->hb_outstanding)
1093                         mod_timer(&phba->hb_tmofunc,
1094                                 jiffies +
1095                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1096                 else
1097                         mod_timer(&phba->hb_tmofunc,
1098                                 jiffies +
1099                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1100                 return;
1101         }
1102         spin_unlock_irq(&phba->pport->work_port_lock);
1103
1104         if (phba->elsbuf_cnt &&
1105                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1106                 spin_lock_irq(&phba->hbalock);
1107                 list_splice_init(&phba->elsbuf, &completions);
1108                 phba->elsbuf_cnt = 0;
1109                 phba->elsbuf_prev_cnt = 0;
1110                 spin_unlock_irq(&phba->hbalock);
1111
1112                 while (!list_empty(&completions)) {
1113                         list_remove_head(&completions, buf_ptr,
1114                                 struct lpfc_dmabuf, list);
1115                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1116                         kfree(buf_ptr);
1117                 }
1118         }
1119         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1120
1121         /* If there is no heart beat outstanding, issue a heartbeat command */
1122         if (phba->cfg_enable_hba_heartbeat) {
1123                 if (!phba->hb_outstanding) {
1124                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1125                                 (list_empty(&psli->mboxq))) {
1126                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1127                                                         GFP_KERNEL);
1128                                 if (!pmboxq) {
1129                                         mod_timer(&phba->hb_tmofunc,
1130                                                  jiffies +
1131                                                  msecs_to_jiffies(1000 *
1132                                                  LPFC_HB_MBOX_INTERVAL));
1133                                         return;
1134                                 }
1135
1136                                 lpfc_heart_beat(phba, pmboxq);
1137                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1138                                 pmboxq->vport = phba->pport;
1139                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1140                                                 MBX_NOWAIT);
1141
1142                                 if (retval != MBX_BUSY &&
1143                                         retval != MBX_SUCCESS) {
1144                                         mempool_free(pmboxq,
1145                                                         phba->mbox_mem_pool);
1146                                         mod_timer(&phba->hb_tmofunc,
1147                                                 jiffies +
1148                                                 msecs_to_jiffies(1000 *
1149                                                 LPFC_HB_MBOX_INTERVAL));
1150                                         return;
1151                                 }
1152                                 phba->skipped_hb = 0;
1153                                 phba->hb_outstanding = 1;
1154                         } else if (time_before_eq(phba->last_completion_time,
1155                                         phba->skipped_hb)) {
1156                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1157                                         "2857 Last completion time not "
1158                                         " updated in %d ms\n",
1159                                         jiffies_to_msecs(jiffies
1160                                                  - phba->last_completion_time));
1161                         } else
1162                                 phba->skipped_hb = jiffies;
1163
1164                         mod_timer(&phba->hb_tmofunc,
1165                                  jiffies +
1166                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1167                         return;
1168                 } else {
1169                         /*
1170                         * If heart beat timeout called with hb_outstanding set
1171                         * we need to give the hb mailbox cmd a chance to
1172                         * complete or TMO.
1173                         */
1174                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1175                                         "0459 Adapter heartbeat still out"
1176                                         "standing:last compl time was %d ms.\n",
1177                                         jiffies_to_msecs(jiffies
1178                                                  - phba->last_completion_time));
1179                         mod_timer(&phba->hb_tmofunc,
1180                                 jiffies +
1181                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1182                 }
1183         }
1184 }
1185
1186 /**
1187  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1188  * @phba: pointer to lpfc hba data structure.
1189  *
1190  * This routine is called to bring the HBA offline when HBA hardware error
1191  * other than Port Error 6 has been detected.
1192  **/
1193 static void
1194 lpfc_offline_eratt(struct lpfc_hba *phba)
1195 {
1196         struct lpfc_sli   *psli = &phba->sli;
1197
1198         spin_lock_irq(&phba->hbalock);
1199         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1200         spin_unlock_irq(&phba->hbalock);
1201         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1202
1203         lpfc_offline(phba);
1204         lpfc_reset_barrier(phba);
1205         spin_lock_irq(&phba->hbalock);
1206         lpfc_sli_brdreset(phba);
1207         spin_unlock_irq(&phba->hbalock);
1208         lpfc_hba_down_post(phba);
1209         lpfc_sli_brdready(phba, HS_MBRDY);
1210         lpfc_unblock_mgmt_io(phba);
1211         phba->link_state = LPFC_HBA_ERROR;
1212         return;
1213 }
1214
1215 /**
1216  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1217  * @phba: pointer to lpfc hba data structure.
1218  *
1219  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1220  * other than Port Error 6 has been detected.
1221  **/
1222 void
1223 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1224 {
1225         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1226         lpfc_offline(phba);
1227         lpfc_sli4_brdreset(phba);
1228         lpfc_hba_down_post(phba);
1229         lpfc_sli4_post_status_check(phba);
1230         lpfc_unblock_mgmt_io(phba);
1231         phba->link_state = LPFC_HBA_ERROR;
1232 }
1233
1234 /**
1235  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1236  * @phba: pointer to lpfc hba data structure.
1237  *
1238  * This routine is invoked to handle the deferred HBA hardware error
1239  * conditions. This type of error is indicated by HBA by setting ER1
1240  * and another ER bit in the host status register. The driver will
1241  * wait until the ER1 bit clears before handling the error condition.
1242  **/
1243 static void
1244 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1245 {
1246         uint32_t old_host_status = phba->work_hs;
1247         struct lpfc_sli_ring  *pring;
1248         struct lpfc_sli *psli = &phba->sli;
1249
1250         /* If the pci channel is offline, ignore possible errors,
1251          * since we cannot communicate with the pci card anyway.
1252          */
1253         if (pci_channel_offline(phba->pcidev)) {
1254                 spin_lock_irq(&phba->hbalock);
1255                 phba->hba_flag &= ~DEFER_ERATT;
1256                 spin_unlock_irq(&phba->hbalock);
1257                 return;
1258         }
1259
1260         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1261                 "0479 Deferred Adapter Hardware Error "
1262                 "Data: x%x x%x x%x\n",
1263                 phba->work_hs,
1264                 phba->work_status[0], phba->work_status[1]);
1265
1266         spin_lock_irq(&phba->hbalock);
1267         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1268         spin_unlock_irq(&phba->hbalock);
1269
1270
1271         /*
1272          * Firmware stops when it triggred erratt. That could cause the I/Os
1273          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1274          * SCSI layer retry it after re-establishing link.
1275          */
1276         pring = &psli->ring[psli->fcp_ring];
1277         lpfc_sli_abort_iocb_ring(phba, pring);
1278
1279         /*
1280          * There was a firmware error. Take the hba offline and then
1281          * attempt to restart it.
1282          */
1283         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1284         lpfc_offline(phba);
1285
1286         /* Wait for the ER1 bit to clear.*/
1287         while (phba->work_hs & HS_FFER1) {
1288                 msleep(100);
1289                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1290                         phba->work_hs = UNPLUG_ERR ;
1291                         break;
1292                 }
1293                 /* If driver is unloading let the worker thread continue */
1294                 if (phba->pport->load_flag & FC_UNLOADING) {
1295                         phba->work_hs = 0;
1296                         break;
1297                 }
1298         }
1299
1300         /*
1301          * This is to ptrotect against a race condition in which
1302          * first write to the host attention register clear the
1303          * host status register.
1304          */
1305         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1306                 phba->work_hs = old_host_status & ~HS_FFER1;
1307
1308         spin_lock_irq(&phba->hbalock);
1309         phba->hba_flag &= ~DEFER_ERATT;
1310         spin_unlock_irq(&phba->hbalock);
1311         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1312         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1313 }
1314
1315 static void
1316 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1317 {
1318         struct lpfc_board_event_header board_event;
1319         struct Scsi_Host *shost;
1320
1321         board_event.event_type = FC_REG_BOARD_EVENT;
1322         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1323         shost = lpfc_shost_from_vport(phba->pport);
1324         fc_host_post_vendor_event(shost, fc_get_event_number(),
1325                                   sizeof(board_event),
1326                                   (char *) &board_event,
1327                                   LPFC_NL_VENDOR_ID);
1328 }
1329
1330 /**
1331  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1332  * @phba: pointer to lpfc hba data structure.
1333  *
1334  * This routine is invoked to handle the following HBA hardware error
1335  * conditions:
1336  * 1 - HBA error attention interrupt
1337  * 2 - DMA ring index out of range
1338  * 3 - Mailbox command came back as unknown
1339  **/
1340 static void
1341 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1342 {
1343         struct lpfc_vport *vport = phba->pport;
1344         struct lpfc_sli   *psli = &phba->sli;
1345         struct lpfc_sli_ring  *pring;
1346         uint32_t event_data;
1347         unsigned long temperature;
1348         struct temp_event temp_event_data;
1349         struct Scsi_Host  *shost;
1350
1351         /* If the pci channel is offline, ignore possible errors,
1352          * since we cannot communicate with the pci card anyway.
1353          */
1354         if (pci_channel_offline(phba->pcidev)) {
1355                 spin_lock_irq(&phba->hbalock);
1356                 phba->hba_flag &= ~DEFER_ERATT;
1357                 spin_unlock_irq(&phba->hbalock);
1358                 return;
1359         }
1360
1361         /* If resets are disabled then leave the HBA alone and return */
1362         if (!phba->cfg_enable_hba_reset)
1363                 return;
1364
1365         /* Send an internal error event to mgmt application */
1366         lpfc_board_errevt_to_mgmt(phba);
1367
1368         if (phba->hba_flag & DEFER_ERATT)
1369                 lpfc_handle_deferred_eratt(phba);
1370
1371         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1372                 if (phba->work_hs & HS_FFER6)
1373                         /* Re-establishing Link */
1374                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1375                                         "1301 Re-establishing Link "
1376                                         "Data: x%x x%x x%x\n",
1377                                         phba->work_hs, phba->work_status[0],
1378                                         phba->work_status[1]);
1379                 if (phba->work_hs & HS_FFER8)
1380                         /* Device Zeroization */
1381                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1382                                         "2861 Host Authentication device "
1383                                         "zeroization Data:x%x x%x x%x\n",
1384                                         phba->work_hs, phba->work_status[0],
1385                                         phba->work_status[1]);
1386
1387                 spin_lock_irq(&phba->hbalock);
1388                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1389                 spin_unlock_irq(&phba->hbalock);
1390
1391                 /*
1392                 * Firmware stops when it triggled erratt with HS_FFER6.
1393                 * That could cause the I/Os dropped by the firmware.
1394                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1395                 * retry it after re-establishing link.
1396                 */
1397                 pring = &psli->ring[psli->fcp_ring];
1398                 lpfc_sli_abort_iocb_ring(phba, pring);
1399
1400                 /*
1401                  * There was a firmware error.  Take the hba offline and then
1402                  * attempt to restart it.
1403                  */
1404                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1405                 lpfc_offline(phba);
1406                 lpfc_sli_brdrestart(phba);
1407                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1408                         lpfc_unblock_mgmt_io(phba);
1409                         return;
1410                 }
1411                 lpfc_unblock_mgmt_io(phba);
1412         } else if (phba->work_hs & HS_CRIT_TEMP) {
1413                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1414                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1415                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1416                 temp_event_data.data = (uint32_t)temperature;
1417
1418                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1419                                 "0406 Adapter maximum temperature exceeded "
1420                                 "(%ld), taking this port offline "
1421                                 "Data: x%x x%x x%x\n",
1422                                 temperature, phba->work_hs,
1423                                 phba->work_status[0], phba->work_status[1]);
1424
1425                 shost = lpfc_shost_from_vport(phba->pport);
1426                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1427                                           sizeof(temp_event_data),
1428                                           (char *) &temp_event_data,
1429                                           SCSI_NL_VID_TYPE_PCI
1430                                           | PCI_VENDOR_ID_EMULEX);
1431
1432                 spin_lock_irq(&phba->hbalock);
1433                 phba->over_temp_state = HBA_OVER_TEMP;
1434                 spin_unlock_irq(&phba->hbalock);
1435                 lpfc_offline_eratt(phba);
1436
1437         } else {
1438                 /* The if clause above forces this code path when the status
1439                  * failure is a value other than FFER6. Do not call the offline
1440                  * twice. This is the adapter hardware error path.
1441                  */
1442                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1443                                 "0457 Adapter Hardware Error "
1444                                 "Data: x%x x%x x%x\n",
1445                                 phba->work_hs,
1446                                 phba->work_status[0], phba->work_status[1]);
1447
1448                 event_data = FC_REG_DUMP_EVENT;
1449                 shost = lpfc_shost_from_vport(vport);
1450                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1451                                 sizeof(event_data), (char *) &event_data,
1452                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1453
1454                 lpfc_offline_eratt(phba);
1455         }
1456         return;
1457 }
1458
1459 /**
1460  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1461  * @phba: pointer to lpfc hba data structure.
1462  * @mbx_action: flag for mailbox shutdown action.
1463  *
1464  * This routine is invoked to perform an SLI4 port PCI function reset in
1465  * response to port status register polling attention. It waits for port
1466  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1467  * During this process, interrupt vectors are freed and later requested
1468  * for handling possible port resource change.
1469  **/
1470 static int
1471 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action)
1472 {
1473         int rc;
1474         uint32_t intr_mode;
1475
1476         /*
1477          * On error status condition, driver need to wait for port
1478          * ready before performing reset.
1479          */
1480         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1481         if (!rc) {
1482                 /* need reset: attempt for port recovery */
1483                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1484                                 "2887 Reset Needed: Attempting Port "
1485                                 "Recovery...\n");
1486                 lpfc_offline_prep(phba, mbx_action);
1487                 lpfc_offline(phba);
1488                 /* release interrupt for possible resource change */
1489                 lpfc_sli4_disable_intr(phba);
1490                 lpfc_sli_brdrestart(phba);
1491                 /* request and enable interrupt */
1492                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1493                 if (intr_mode == LPFC_INTR_ERROR) {
1494                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1495                                         "3175 Failed to enable interrupt\n");
1496                         return -EIO;
1497                 } else {
1498                         phba->intr_mode = intr_mode;
1499                 }
1500                 rc = lpfc_online(phba);
1501                 if (rc == 0)
1502                         lpfc_unblock_mgmt_io(phba);
1503         }
1504         return rc;
1505 }
1506
1507 /**
1508  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1509  * @phba: pointer to lpfc hba data structure.
1510  *
1511  * This routine is invoked to handle the SLI4 HBA hardware error attention
1512  * conditions.
1513  **/
1514 static void
1515 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1516 {
1517         struct lpfc_vport *vport = phba->pport;
1518         uint32_t event_data;
1519         struct Scsi_Host *shost;
1520         uint32_t if_type;
1521         struct lpfc_register portstat_reg = {0};
1522         uint32_t reg_err1, reg_err2;
1523         uint32_t uerrlo_reg, uemasklo_reg;
1524         uint32_t pci_rd_rc1, pci_rd_rc2;
1525         int rc;
1526
1527         /* If the pci channel is offline, ignore possible errors, since
1528          * we cannot communicate with the pci card anyway.
1529          */
1530         if (pci_channel_offline(phba->pcidev))
1531                 return;
1532         /* If resets are disabled then leave the HBA alone and return */
1533         if (!phba->cfg_enable_hba_reset)
1534                 return;
1535
1536         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1537         switch (if_type) {
1538         case LPFC_SLI_INTF_IF_TYPE_0:
1539                 pci_rd_rc1 = lpfc_readl(
1540                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1541                                 &uerrlo_reg);
1542                 pci_rd_rc2 = lpfc_readl(
1543                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1544                                 &uemasklo_reg);
1545                 /* consider PCI bus read error as pci_channel_offline */
1546                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1547                         return;
1548                 lpfc_sli4_offline_eratt(phba);
1549                 break;
1550         case LPFC_SLI_INTF_IF_TYPE_2:
1551                 pci_rd_rc1 = lpfc_readl(
1552                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1553                                 &portstat_reg.word0);
1554                 /* consider PCI bus read error as pci_channel_offline */
1555                 if (pci_rd_rc1 == -EIO) {
1556                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1557                                 "3151 PCI bus read access failure: x%x\n",
1558                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1559                         return;
1560                 }
1561                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1562                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1563                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1564                         /* TODO: Register for Overtemp async events. */
1565                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1566                                 "2889 Port Overtemperature event, "
1567                                 "taking port offline\n");
1568                         spin_lock_irq(&phba->hbalock);
1569                         phba->over_temp_state = HBA_OVER_TEMP;
1570                         spin_unlock_irq(&phba->hbalock);
1571                         lpfc_sli4_offline_eratt(phba);
1572                         break;
1573                 }
1574                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1575                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
1576                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1577                                         "3143 Port Down: Firmware Restarted\n");
1578                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1579                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1580                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1581                                         "3144 Port Down: Debug Dump\n");
1582                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1583                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1584                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1585                                         "3145 Port Down: Provisioning\n");
1586
1587                 /* Check port status register for function reset */
1588                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT);
1589                 if (rc == 0) {
1590                         /* don't report event on forced debug dump */
1591                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1592                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1593                                 return;
1594                         else
1595                                 break;
1596                 }
1597                 /* fall through for not able to recover */
1598                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1599                                 "3152 Unrecoverable error, bring the port "
1600                                 "offline\n");
1601                 lpfc_sli4_offline_eratt(phba);
1602                 break;
1603         case LPFC_SLI_INTF_IF_TYPE_1:
1604         default:
1605                 break;
1606         }
1607         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1608                         "3123 Report dump event to upper layer\n");
1609         /* Send an internal error event to mgmt application */
1610         lpfc_board_errevt_to_mgmt(phba);
1611
1612         event_data = FC_REG_DUMP_EVENT;
1613         shost = lpfc_shost_from_vport(vport);
1614         fc_host_post_vendor_event(shost, fc_get_event_number(),
1615                                   sizeof(event_data), (char *) &event_data,
1616                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1617 }
1618
1619 /**
1620  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1621  * @phba: pointer to lpfc HBA data structure.
1622  *
1623  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1624  * routine from the API jump table function pointer from the lpfc_hba struct.
1625  *
1626  * Return codes
1627  *   0 - success.
1628  *   Any other value - error.
1629  **/
1630 void
1631 lpfc_handle_eratt(struct lpfc_hba *phba)
1632 {
1633         (*phba->lpfc_handle_eratt)(phba);
1634 }
1635
1636 /**
1637  * lpfc_handle_latt - The HBA link event handler
1638  * @phba: pointer to lpfc hba data structure.
1639  *
1640  * This routine is invoked from the worker thread to handle a HBA host
1641  * attention link event.
1642  **/
1643 void
1644 lpfc_handle_latt(struct lpfc_hba *phba)
1645 {
1646         struct lpfc_vport *vport = phba->pport;
1647         struct lpfc_sli   *psli = &phba->sli;
1648         LPFC_MBOXQ_t *pmb;
1649         volatile uint32_t control;
1650         struct lpfc_dmabuf *mp;
1651         int rc = 0;
1652
1653         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1654         if (!pmb) {
1655                 rc = 1;
1656                 goto lpfc_handle_latt_err_exit;
1657         }
1658
1659         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1660         if (!mp) {
1661                 rc = 2;
1662                 goto lpfc_handle_latt_free_pmb;
1663         }
1664
1665         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1666         if (!mp->virt) {
1667                 rc = 3;
1668                 goto lpfc_handle_latt_free_mp;
1669         }
1670
1671         /* Cleanup any outstanding ELS commands */
1672         lpfc_els_flush_all_cmd(phba);
1673
1674         psli->slistat.link_event++;
1675         lpfc_read_topology(phba, pmb, mp);
1676         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1677         pmb->vport = vport;
1678         /* Block ELS IOCBs until we have processed this mbox command */
1679         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1680         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1681         if (rc == MBX_NOT_FINISHED) {
1682                 rc = 4;
1683                 goto lpfc_handle_latt_free_mbuf;
1684         }
1685
1686         /* Clear Link Attention in HA REG */
1687         spin_lock_irq(&phba->hbalock);
1688         writel(HA_LATT, phba->HAregaddr);
1689         readl(phba->HAregaddr); /* flush */
1690         spin_unlock_irq(&phba->hbalock);
1691
1692         return;
1693
1694 lpfc_handle_latt_free_mbuf:
1695         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1696         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1697 lpfc_handle_latt_free_mp:
1698         kfree(mp);
1699 lpfc_handle_latt_free_pmb:
1700         mempool_free(pmb, phba->mbox_mem_pool);
1701 lpfc_handle_latt_err_exit:
1702         /* Enable Link attention interrupts */
1703         spin_lock_irq(&phba->hbalock);
1704         psli->sli_flag |= LPFC_PROCESS_LA;
1705         control = readl(phba->HCregaddr);
1706         control |= HC_LAINT_ENA;
1707         writel(control, phba->HCregaddr);
1708         readl(phba->HCregaddr); /* flush */
1709
1710         /* Clear Link Attention in HA REG */
1711         writel(HA_LATT, phba->HAregaddr);
1712         readl(phba->HAregaddr); /* flush */
1713         spin_unlock_irq(&phba->hbalock);
1714         lpfc_linkdown(phba);
1715         phba->link_state = LPFC_HBA_ERROR;
1716
1717         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1718                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1719
1720         return;
1721 }
1722
1723 /**
1724  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1725  * @phba: pointer to lpfc hba data structure.
1726  * @vpd: pointer to the vital product data.
1727  * @len: length of the vital product data in bytes.
1728  *
1729  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1730  * an array of characters. In this routine, the ModelName, ProgramType, and
1731  * ModelDesc, etc. fields of the phba data structure will be populated.
1732  *
1733  * Return codes
1734  *   0 - pointer to the VPD passed in is NULL
1735  *   1 - success
1736  **/
1737 int
1738 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1739 {
1740         uint8_t lenlo, lenhi;
1741         int Length;
1742         int i, j;
1743         int finished = 0;
1744         int index = 0;
1745
1746         if (!vpd)
1747                 return 0;
1748
1749         /* Vital Product */
1750         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1751                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1752                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1753                         (uint32_t) vpd[3]);
1754         while (!finished && (index < (len - 4))) {
1755                 switch (vpd[index]) {
1756                 case 0x82:
1757                 case 0x91:
1758                         index += 1;
1759                         lenlo = vpd[index];
1760                         index += 1;
1761                         lenhi = vpd[index];
1762                         index += 1;
1763                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1764                         index += i;
1765                         break;
1766                 case 0x90:
1767                         index += 1;
1768                         lenlo = vpd[index];
1769                         index += 1;
1770                         lenhi = vpd[index];
1771                         index += 1;
1772                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1773                         if (Length > len - index)
1774                                 Length = len - index;
1775                         while (Length > 0) {
1776                         /* Look for Serial Number */
1777                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1778                                 index += 2;
1779                                 i = vpd[index];
1780                                 index += 1;
1781                                 j = 0;
1782                                 Length -= (3+i);
1783                                 while(i--) {
1784                                         phba->SerialNumber[j++] = vpd[index++];
1785                                         if (j == 31)
1786                                                 break;
1787                                 }
1788                                 phba->SerialNumber[j] = 0;
1789                                 continue;
1790                         }
1791                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1792                                 phba->vpd_flag |= VPD_MODEL_DESC;
1793                                 index += 2;
1794                                 i = vpd[index];
1795                                 index += 1;
1796                                 j = 0;
1797                                 Length -= (3+i);
1798                                 while(i--) {
1799                                         phba->ModelDesc[j++] = vpd[index++];
1800                                         if (j == 255)
1801                                                 break;
1802                                 }
1803                                 phba->ModelDesc[j] = 0;
1804                                 continue;
1805                         }
1806                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1807                                 phba->vpd_flag |= VPD_MODEL_NAME;
1808                                 index += 2;
1809                                 i = vpd[index];
1810                                 index += 1;
1811                                 j = 0;
1812                                 Length -= (3+i);
1813                                 while(i--) {
1814                                         phba->ModelName[j++] = vpd[index++];
1815                                         if (j == 79)
1816                                                 break;
1817                                 }
1818                                 phba->ModelName[j] = 0;
1819                                 continue;
1820                         }
1821                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1822                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1823                                 index += 2;
1824                                 i = vpd[index];
1825                                 index += 1;
1826                                 j = 0;
1827                                 Length -= (3+i);
1828                                 while(i--) {
1829                                         phba->ProgramType[j++] = vpd[index++];
1830                                         if (j == 255)
1831                                                 break;
1832                                 }
1833                                 phba->ProgramType[j] = 0;
1834                                 continue;
1835                         }
1836                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1837                                 phba->vpd_flag |= VPD_PORT;
1838                                 index += 2;
1839                                 i = vpd[index];
1840                                 index += 1;
1841                                 j = 0;
1842                                 Length -= (3+i);
1843                                 while(i--) {
1844                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1845                                             (phba->sli4_hba.pport_name_sta ==
1846                                              LPFC_SLI4_PPNAME_GET)) {
1847                                                 j++;
1848                                                 index++;
1849                                         } else
1850                                                 phba->Port[j++] = vpd[index++];
1851                                         if (j == 19)
1852                                                 break;
1853                                 }
1854                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1855                                     (phba->sli4_hba.pport_name_sta ==
1856                                      LPFC_SLI4_PPNAME_NON))
1857                                         phba->Port[j] = 0;
1858                                 continue;
1859                         }
1860                         else {
1861                                 index += 2;
1862                                 i = vpd[index];
1863                                 index += 1;
1864                                 index += i;
1865                                 Length -= (3 + i);
1866                         }
1867                 }
1868                 finished = 0;
1869                 break;
1870                 case 0x78:
1871                         finished = 1;
1872                         break;
1873                 default:
1874                         index ++;
1875                         break;
1876                 }
1877         }
1878
1879         return(1);
1880 }
1881
1882 /**
1883  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1884  * @phba: pointer to lpfc hba data structure.
1885  * @mdp: pointer to the data structure to hold the derived model name.
1886  * @descp: pointer to the data structure to hold the derived description.
1887  *
1888  * This routine retrieves HBA's description based on its registered PCI device
1889  * ID. The @descp passed into this function points to an array of 256 chars. It
1890  * shall be returned with the model name, maximum speed, and the host bus type.
1891  * The @mdp passed into this function points to an array of 80 chars. When the
1892  * function returns, the @mdp will be filled with the model name.
1893  **/
1894 static void
1895 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1896 {
1897         lpfc_vpd_t *vp;
1898         uint16_t dev_id = phba->pcidev->device;
1899         int max_speed;
1900         int GE = 0;
1901         int oneConnect = 0; /* default is not a oneConnect */
1902         struct {
1903                 char *name;
1904                 char *bus;
1905                 char *function;
1906         } m = {"<Unknown>", "", ""};
1907
1908         if (mdp && mdp[0] != '\0'
1909                 && descp && descp[0] != '\0')
1910                 return;
1911
1912         if (phba->lmt & LMT_16Gb)
1913                 max_speed = 16;
1914         else if (phba->lmt & LMT_10Gb)
1915                 max_speed = 10;
1916         else if (phba->lmt & LMT_8Gb)
1917                 max_speed = 8;
1918         else if (phba->lmt & LMT_4Gb)
1919                 max_speed = 4;
1920         else if (phba->lmt & LMT_2Gb)
1921                 max_speed = 2;
1922         else if (phba->lmt & LMT_1Gb)
1923                 max_speed = 1;
1924         else
1925                 max_speed = 0;
1926
1927         vp = &phba->vpd;
1928
1929         switch (dev_id) {
1930         case PCI_DEVICE_ID_FIREFLY:
1931                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1932                 break;
1933         case PCI_DEVICE_ID_SUPERFLY:
1934                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1935                         m = (typeof(m)){"LP7000", "PCI",
1936                                         "Fibre Channel Adapter"};
1937                 else
1938                         m = (typeof(m)){"LP7000E", "PCI",
1939                                         "Fibre Channel Adapter"};
1940                 break;
1941         case PCI_DEVICE_ID_DRAGONFLY:
1942                 m = (typeof(m)){"LP8000", "PCI",
1943                                 "Fibre Channel Adapter"};
1944                 break;
1945         case PCI_DEVICE_ID_CENTAUR:
1946                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1947                         m = (typeof(m)){"LP9002", "PCI",
1948                                         "Fibre Channel Adapter"};
1949                 else
1950                         m = (typeof(m)){"LP9000", "PCI",
1951                                         "Fibre Channel Adapter"};
1952                 break;
1953         case PCI_DEVICE_ID_RFLY:
1954                 m = (typeof(m)){"LP952", "PCI",
1955                                 "Fibre Channel Adapter"};
1956                 break;
1957         case PCI_DEVICE_ID_PEGASUS:
1958                 m = (typeof(m)){"LP9802", "PCI-X",
1959                                 "Fibre Channel Adapter"};
1960                 break;
1961         case PCI_DEVICE_ID_THOR:
1962                 m = (typeof(m)){"LP10000", "PCI-X",
1963                                 "Fibre Channel Adapter"};
1964                 break;
1965         case PCI_DEVICE_ID_VIPER:
1966                 m = (typeof(m)){"LPX1000",  "PCI-X",
1967                                 "Fibre Channel Adapter"};
1968                 break;
1969         case PCI_DEVICE_ID_PFLY:
1970                 m = (typeof(m)){"LP982", "PCI-X",
1971                                 "Fibre Channel Adapter"};
1972                 break;
1973         case PCI_DEVICE_ID_TFLY:
1974                 m = (typeof(m)){"LP1050", "PCI-X",
1975                                 "Fibre Channel Adapter"};
1976                 break;
1977         case PCI_DEVICE_ID_HELIOS:
1978                 m = (typeof(m)){"LP11000", "PCI-X2",
1979                                 "Fibre Channel Adapter"};
1980                 break;
1981         case PCI_DEVICE_ID_HELIOS_SCSP:
1982                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1983                                 "Fibre Channel Adapter"};
1984                 break;
1985         case PCI_DEVICE_ID_HELIOS_DCSP:
1986                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1987                                 "Fibre Channel Adapter"};
1988                 break;
1989         case PCI_DEVICE_ID_NEPTUNE:
1990                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1991                 break;
1992         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1993                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1994                 break;
1995         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1996                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1997                 break;
1998         case PCI_DEVICE_ID_BMID:
1999                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2000                 break;
2001         case PCI_DEVICE_ID_BSMB:
2002                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
2003                 break;
2004         case PCI_DEVICE_ID_ZEPHYR:
2005                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2006                 break;
2007         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2008                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2009                 break;
2010         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2011                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2012                 GE = 1;
2013                 break;
2014         case PCI_DEVICE_ID_ZMID:
2015                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2016                 break;
2017         case PCI_DEVICE_ID_ZSMB:
2018                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2019                 break;
2020         case PCI_DEVICE_ID_LP101:
2021                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
2022                 break;
2023         case PCI_DEVICE_ID_LP10000S:
2024                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
2025                 break;
2026         case PCI_DEVICE_ID_LP11000S:
2027                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
2028                 break;
2029         case PCI_DEVICE_ID_LPE11000S:
2030                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
2031                 break;
2032         case PCI_DEVICE_ID_SAT:
2033                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2034                 break;
2035         case PCI_DEVICE_ID_SAT_MID:
2036                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2037                 break;
2038         case PCI_DEVICE_ID_SAT_SMB:
2039                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2040                 break;
2041         case PCI_DEVICE_ID_SAT_DCSP:
2042                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2043                 break;
2044         case PCI_DEVICE_ID_SAT_SCSP:
2045                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2046                 break;
2047         case PCI_DEVICE_ID_SAT_S:
2048                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2049                 break;
2050         case PCI_DEVICE_ID_HORNET:
2051                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
2052                 GE = 1;
2053                 break;
2054         case PCI_DEVICE_ID_PROTEUS_VF:
2055                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2056                                 "Fibre Channel Adapter"};
2057                 break;
2058         case PCI_DEVICE_ID_PROTEUS_PF:
2059                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2060                                 "Fibre Channel Adapter"};
2061                 break;
2062         case PCI_DEVICE_ID_PROTEUS_S:
2063                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2064                                 "Fibre Channel Adapter"};
2065                 break;
2066         case PCI_DEVICE_ID_TIGERSHARK:
2067                 oneConnect = 1;
2068                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2069                 break;
2070         case PCI_DEVICE_ID_TOMCAT:
2071                 oneConnect = 1;
2072                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2073                 break;
2074         case PCI_DEVICE_ID_FALCON:
2075                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2076                                 "EmulexSecure Fibre"};
2077                 break;
2078         case PCI_DEVICE_ID_BALIUS:
2079                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2080                                 "Fibre Channel Adapter"};
2081                 break;
2082         case PCI_DEVICE_ID_LANCER_FC:
2083         case PCI_DEVICE_ID_LANCER_FC_VF:
2084                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2085                 break;
2086         case PCI_DEVICE_ID_LANCER_FCOE:
2087         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2088                 oneConnect = 1;
2089                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2090                 break;
2091         case PCI_DEVICE_ID_SKYHAWK:
2092         case PCI_DEVICE_ID_SKYHAWK_VF:
2093                 oneConnect = 1;
2094                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2095                 break;
2096         default:
2097                 m = (typeof(m)){"Unknown", "", ""};
2098                 break;
2099         }
2100
2101         if (mdp && mdp[0] == '\0')
2102                 snprintf(mdp, 79,"%s", m.name);
2103         /*
2104          * oneConnect hba requires special processing, they are all initiators
2105          * and we put the port number on the end
2106          */
2107         if (descp && descp[0] == '\0') {
2108                 if (oneConnect)
2109                         snprintf(descp, 255,
2110                                 "Emulex OneConnect %s, %s Initiator %s",
2111                                 m.name, m.function,
2112                                 phba->Port);
2113                 else if (max_speed == 0)
2114                         snprintf(descp, 255,
2115                                 "Emulex %s %s %s ",
2116                                 m.name, m.bus, m.function);
2117                 else
2118                         snprintf(descp, 255,
2119                                 "Emulex %s %d%s %s %s",
2120                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2121                                 m.bus, m.function);
2122         }
2123 }
2124
2125 /**
2126  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2127  * @phba: pointer to lpfc hba data structure.
2128  * @pring: pointer to a IOCB ring.
2129  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2130  *
2131  * This routine posts a given number of IOCBs with the associated DMA buffer
2132  * descriptors specified by the cnt argument to the given IOCB ring.
2133  *
2134  * Return codes
2135  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2136  **/
2137 int
2138 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2139 {
2140         IOCB_t *icmd;
2141         struct lpfc_iocbq *iocb;
2142         struct lpfc_dmabuf *mp1, *mp2;
2143
2144         cnt += pring->missbufcnt;
2145
2146         /* While there are buffers to post */
2147         while (cnt > 0) {
2148                 /* Allocate buffer for  command iocb */
2149                 iocb = lpfc_sli_get_iocbq(phba);
2150                 if (iocb == NULL) {
2151                         pring->missbufcnt = cnt;
2152                         return cnt;
2153                 }
2154                 icmd = &iocb->iocb;
2155
2156                 /* 2 buffers can be posted per command */
2157                 /* Allocate buffer to post */
2158                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2159                 if (mp1)
2160                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2161                 if (!mp1 || !mp1->virt) {
2162                         kfree(mp1);
2163                         lpfc_sli_release_iocbq(phba, iocb);
2164                         pring->missbufcnt = cnt;
2165                         return cnt;
2166                 }
2167
2168                 INIT_LIST_HEAD(&mp1->list);
2169                 /* Allocate buffer to post */
2170                 if (cnt > 1) {
2171                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2172                         if (mp2)
2173                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2174                                                             &mp2->phys);
2175                         if (!mp2 || !mp2->virt) {
2176                                 kfree(mp2);
2177                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2178                                 kfree(mp1);
2179                                 lpfc_sli_release_iocbq(phba, iocb);
2180                                 pring->missbufcnt = cnt;
2181                                 return cnt;
2182                         }
2183
2184                         INIT_LIST_HEAD(&mp2->list);
2185                 } else {
2186                         mp2 = NULL;
2187                 }
2188
2189                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2190                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2191                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2192                 icmd->ulpBdeCount = 1;
2193                 cnt--;
2194                 if (mp2) {
2195                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2196                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2197                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2198                         cnt--;
2199                         icmd->ulpBdeCount = 2;
2200                 }
2201
2202                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2203                 icmd->ulpLe = 1;
2204
2205                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2206                     IOCB_ERROR) {
2207                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2208                         kfree(mp1);
2209                         cnt++;
2210                         if (mp2) {
2211                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2212                                 kfree(mp2);
2213                                 cnt++;
2214                         }
2215                         lpfc_sli_release_iocbq(phba, iocb);
2216                         pring->missbufcnt = cnt;
2217                         return cnt;
2218                 }
2219                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2220                 if (mp2)
2221                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2222         }
2223         pring->missbufcnt = 0;
2224         return 0;
2225 }
2226
2227 /**
2228  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2229  * @phba: pointer to lpfc hba data structure.
2230  *
2231  * This routine posts initial receive IOCB buffers to the ELS ring. The
2232  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2233  * set to 64 IOCBs.
2234  *
2235  * Return codes
2236  *   0 - success (currently always success)
2237  **/
2238 static int
2239 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2240 {
2241         struct lpfc_sli *psli = &phba->sli;
2242
2243         /* Ring 0, ELS / CT buffers */
2244         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2245         /* Ring 2 - FCP no buffers needed */
2246
2247         return 0;
2248 }
2249
2250 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2251
2252 /**
2253  * lpfc_sha_init - Set up initial array of hash table entries
2254  * @HashResultPointer: pointer to an array as hash table.
2255  *
2256  * This routine sets up the initial values to the array of hash table entries
2257  * for the LC HBAs.
2258  **/
2259 static void
2260 lpfc_sha_init(uint32_t * HashResultPointer)
2261 {
2262         HashResultPointer[0] = 0x67452301;
2263         HashResultPointer[1] = 0xEFCDAB89;
2264         HashResultPointer[2] = 0x98BADCFE;
2265         HashResultPointer[3] = 0x10325476;
2266         HashResultPointer[4] = 0xC3D2E1F0;
2267 }
2268
2269 /**
2270  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2271  * @HashResultPointer: pointer to an initial/result hash table.
2272  * @HashWorkingPointer: pointer to an working hash table.
2273  *
2274  * This routine iterates an initial hash table pointed by @HashResultPointer
2275  * with the values from the working hash table pointeed by @HashWorkingPointer.
2276  * The results are putting back to the initial hash table, returned through
2277  * the @HashResultPointer as the result hash table.
2278  **/
2279 static void
2280 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2281 {
2282         int t;
2283         uint32_t TEMP;
2284         uint32_t A, B, C, D, E;
2285         t = 16;
2286         do {
2287                 HashWorkingPointer[t] =
2288                     S(1,
2289                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2290                                                                      8] ^
2291                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2292         } while (++t <= 79);
2293         t = 0;
2294         A = HashResultPointer[0];
2295         B = HashResultPointer[1];
2296         C = HashResultPointer[2];
2297         D = HashResultPointer[3];
2298         E = HashResultPointer[4];
2299
2300         do {
2301                 if (t < 20) {
2302                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2303                 } else if (t < 40) {
2304                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2305                 } else if (t < 60) {
2306                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2307                 } else {
2308                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2309                 }
2310                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2311                 E = D;
2312                 D = C;
2313                 C = S(30, B);
2314                 B = A;
2315                 A = TEMP;
2316         } while (++t <= 79);
2317
2318         HashResultPointer[0] += A;
2319         HashResultPointer[1] += B;
2320         HashResultPointer[2] += C;
2321         HashResultPointer[3] += D;
2322         HashResultPointer[4] += E;
2323
2324 }
2325
2326 /**
2327  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2328  * @RandomChallenge: pointer to the entry of host challenge random number array.
2329  * @HashWorking: pointer to the entry of the working hash array.
2330  *
2331  * This routine calculates the working hash array referred by @HashWorking
2332  * from the challenge random numbers associated with the host, referred by
2333  * @RandomChallenge. The result is put into the entry of the working hash
2334  * array and returned by reference through @HashWorking.
2335  **/
2336 static void
2337 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2338 {
2339         *HashWorking = (*RandomChallenge ^ *HashWorking);
2340 }
2341
2342 /**
2343  * lpfc_hba_init - Perform special handling for LC HBA initialization
2344  * @phba: pointer to lpfc hba data structure.
2345  * @hbainit: pointer to an array of unsigned 32-bit integers.
2346  *
2347  * This routine performs the special handling for LC HBA initialization.
2348  **/
2349 void
2350 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2351 {
2352         int t;
2353         uint32_t *HashWorking;
2354         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2355
2356         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2357         if (!HashWorking)
2358                 return;
2359
2360         HashWorking[0] = HashWorking[78] = *pwwnn++;
2361         HashWorking[1] = HashWorking[79] = *pwwnn;
2362
2363         for (t = 0; t < 7; t++)
2364                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2365
2366         lpfc_sha_init(hbainit);
2367         lpfc_sha_iterate(hbainit, HashWorking);
2368         kfree(HashWorking);
2369 }
2370
2371 /**
2372  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2373  * @vport: pointer to a virtual N_Port data structure.
2374  *
2375  * This routine performs the necessary cleanups before deleting the @vport.
2376  * It invokes the discovery state machine to perform necessary state
2377  * transitions and to release the ndlps associated with the @vport. Note,
2378  * the physical port is treated as @vport 0.
2379  **/
2380 void
2381 lpfc_cleanup(struct lpfc_vport *vport)
2382 {
2383         struct lpfc_hba   *phba = vport->phba;
2384         struct lpfc_nodelist *ndlp, *next_ndlp;
2385         int i = 0;
2386
2387         if (phba->link_state > LPFC_LINK_DOWN)
2388                 lpfc_port_link_failure(vport);
2389
2390         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2391                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2392                         ndlp = lpfc_enable_node(vport, ndlp,
2393                                                 NLP_STE_UNUSED_NODE);
2394                         if (!ndlp)
2395                                 continue;
2396                         spin_lock_irq(&phba->ndlp_lock);
2397                         NLP_SET_FREE_REQ(ndlp);
2398                         spin_unlock_irq(&phba->ndlp_lock);
2399                         /* Trigger the release of the ndlp memory */
2400                         lpfc_nlp_put(ndlp);
2401                         continue;
2402                 }
2403                 spin_lock_irq(&phba->ndlp_lock);
2404                 if (NLP_CHK_FREE_REQ(ndlp)) {
2405                         /* The ndlp should not be in memory free mode already */
2406                         spin_unlock_irq(&phba->ndlp_lock);
2407                         continue;
2408                 } else
2409                         /* Indicate request for freeing ndlp memory */
2410                         NLP_SET_FREE_REQ(ndlp);
2411                 spin_unlock_irq(&phba->ndlp_lock);
2412
2413                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2414                     ndlp->nlp_DID == Fabric_DID) {
2415                         /* Just free up ndlp with Fabric_DID for vports */
2416                         lpfc_nlp_put(ndlp);
2417                         continue;
2418                 }
2419
2420                 /* take care of nodes in unused state before the state
2421                  * machine taking action.
2422                  */
2423                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2424                         lpfc_nlp_put(ndlp);
2425                         continue;
2426                 }
2427
2428                 if (ndlp->nlp_type & NLP_FABRIC)
2429                         lpfc_disc_state_machine(vport, ndlp, NULL,
2430                                         NLP_EVT_DEVICE_RECOVERY);
2431
2432                 lpfc_disc_state_machine(vport, ndlp, NULL,
2433                                              NLP_EVT_DEVICE_RM);
2434         }
2435
2436         /* At this point, ALL ndlp's should be gone
2437          * because of the previous NLP_EVT_DEVICE_RM.
2438          * Lets wait for this to happen, if needed.
2439          */
2440         while (!list_empty(&vport->fc_nodes)) {
2441                 if (i++ > 3000) {
2442                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2443                                 "0233 Nodelist not empty\n");
2444                         list_for_each_entry_safe(ndlp, next_ndlp,
2445                                                 &vport->fc_nodes, nlp_listp) {
2446                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2447                                                 LOG_NODE,
2448                                                 "0282 did:x%x ndlp:x%p "
2449                                                 "usgmap:x%x refcnt:%d\n",
2450                                                 ndlp->nlp_DID, (void *)ndlp,
2451                                                 ndlp->nlp_usg_map,
2452                                                 atomic_read(
2453                                                         &ndlp->kref.refcount));
2454                         }
2455                         break;
2456                 }
2457
2458                 /* Wait for any activity on ndlps to settle */
2459                 msleep(10);
2460         }
2461         lpfc_cleanup_vports_rrqs(vport, NULL);
2462 }
2463
2464 /**
2465  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2466  * @vport: pointer to a virtual N_Port data structure.
2467  *
2468  * This routine stops all the timers associated with a @vport. This function
2469  * is invoked before disabling or deleting a @vport. Note that the physical
2470  * port is treated as @vport 0.
2471  **/
2472 void
2473 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2474 {
2475         del_timer_sync(&vport->els_tmofunc);
2476         del_timer_sync(&vport->fc_fdmitmo);
2477         del_timer_sync(&vport->delayed_disc_tmo);
2478         lpfc_can_disctmo(vport);
2479         return;
2480 }
2481
2482 /**
2483  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2484  * @phba: pointer to lpfc hba data structure.
2485  *
2486  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2487  * caller of this routine should already hold the host lock.
2488  **/
2489 void
2490 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2491 {
2492         /* Clear pending FCF rediscovery wait flag */
2493         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2494
2495         /* Now, try to stop the timer */
2496         del_timer(&phba->fcf.redisc_wait);
2497 }
2498
2499 /**
2500  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2501  * @phba: pointer to lpfc hba data structure.
2502  *
2503  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2504  * checks whether the FCF rediscovery wait timer is pending with the host
2505  * lock held before proceeding with disabling the timer and clearing the
2506  * wait timer pendig flag.
2507  **/
2508 void
2509 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2510 {
2511         spin_lock_irq(&phba->hbalock);
2512         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2513                 /* FCF rediscovery timer already fired or stopped */
2514                 spin_unlock_irq(&phba->hbalock);
2515                 return;
2516         }
2517         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2518         /* Clear failover in progress flags */
2519         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2520         spin_unlock_irq(&phba->hbalock);
2521 }
2522
2523 /**
2524  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2525  * @phba: pointer to lpfc hba data structure.
2526  *
2527  * This routine stops all the timers associated with a HBA. This function is
2528  * invoked before either putting a HBA offline or unloading the driver.
2529  **/
2530 void
2531 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2532 {
2533         lpfc_stop_vport_timers(phba->pport);
2534         del_timer_sync(&phba->sli.mbox_tmo);
2535         del_timer_sync(&phba->fabric_block_timer);
2536         del_timer_sync(&phba->eratt_poll);
2537         del_timer_sync(&phba->hb_tmofunc);
2538         if (phba->sli_rev == LPFC_SLI_REV4) {
2539                 del_timer_sync(&phba->rrq_tmr);
2540                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2541         }
2542         phba->hb_outstanding = 0;
2543
2544         switch (phba->pci_dev_grp) {
2545         case LPFC_PCI_DEV_LP:
2546                 /* Stop any LightPulse device specific driver timers */
2547                 del_timer_sync(&phba->fcp_poll_timer);
2548                 break;
2549         case LPFC_PCI_DEV_OC:
2550                 /* Stop any OneConnect device sepcific driver timers */
2551                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2552                 break;
2553         default:
2554                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2555                                 "0297 Invalid device group (x%x)\n",
2556                                 phba->pci_dev_grp);
2557                 break;
2558         }
2559         return;
2560 }
2561
2562 /**
2563  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2564  * @phba: pointer to lpfc hba data structure.
2565  *
2566  * This routine marks a HBA's management interface as blocked. Once the HBA's
2567  * management interface is marked as blocked, all the user space access to
2568  * the HBA, whether they are from sysfs interface or libdfc interface will
2569  * all be blocked. The HBA is set to block the management interface when the
2570  * driver prepares the HBA interface for online or offline.
2571  **/
2572 static void
2573 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2574 {
2575         unsigned long iflag;
2576         uint8_t actcmd = MBX_HEARTBEAT;
2577         unsigned long timeout;
2578
2579         spin_lock_irqsave(&phba->hbalock, iflag);
2580         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2581         spin_unlock_irqrestore(&phba->hbalock, iflag);
2582         if (mbx_action == LPFC_MBX_NO_WAIT)
2583                 return;
2584         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2585         spin_lock_irqsave(&phba->hbalock, iflag);
2586         if (phba->sli.mbox_active) {
2587                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2588                 /* Determine how long we might wait for the active mailbox
2589                  * command to be gracefully completed by firmware.
2590                  */
2591                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2592                                 phba->sli.mbox_active) * 1000) + jiffies;
2593         }
2594         spin_unlock_irqrestore(&phba->hbalock, iflag);
2595
2596         /* Wait for the outstnading mailbox command to complete */
2597         while (phba->sli.mbox_active) {
2598                 /* Check active mailbox complete status every 2ms */
2599                 msleep(2);
2600                 if (time_after(jiffies, timeout)) {
2601                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2602                                 "2813 Mgmt IO is Blocked %x "
2603                                 "- mbox cmd %x still active\n",
2604                                 phba->sli.sli_flag, actcmd);
2605                         break;
2606                 }
2607         }
2608 }
2609
2610 /**
2611  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2612  * @phba: pointer to lpfc hba data structure.
2613  *
2614  * Allocate RPIs for all active remote nodes. This is needed whenever
2615  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2616  * is to fixup the temporary rpi assignments.
2617  **/
2618 void
2619 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2620 {
2621         struct lpfc_nodelist  *ndlp, *next_ndlp;
2622         struct lpfc_vport **vports;
2623         int i;
2624
2625         if (phba->sli_rev != LPFC_SLI_REV4)
2626                 return;
2627
2628         vports = lpfc_create_vport_work_array(phba);
2629         if (vports != NULL) {
2630                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2631                         if (vports[i]->load_flag & FC_UNLOADING)
2632                                 continue;
2633
2634                         list_for_each_entry_safe(ndlp, next_ndlp,
2635                                                  &vports[i]->fc_nodes,
2636                                                  nlp_listp) {
2637                                 if (NLP_CHK_NODE_ACT(ndlp))
2638                                         ndlp->nlp_rpi =
2639                                                 lpfc_sli4_alloc_rpi(phba);
2640                         }
2641                 }
2642         }
2643         lpfc_destroy_vport_work_array(phba, vports);
2644 }
2645
2646 /**
2647  * lpfc_online - Initialize and bring a HBA online
2648  * @phba: pointer to lpfc hba data structure.
2649  *
2650  * This routine initializes the HBA and brings a HBA online. During this
2651  * process, the management interface is blocked to prevent user space access
2652  * to the HBA interfering with the driver initialization.
2653  *
2654  * Return codes
2655  *   0 - successful
2656  *   1 - failed
2657  **/
2658 int
2659 lpfc_online(struct lpfc_hba *phba)
2660 {
2661         struct lpfc_vport *vport;
2662         struct lpfc_vport **vports;
2663         int i;
2664         bool vpis_cleared = false;
2665
2666         if (!phba)
2667                 return 0;
2668         vport = phba->pport;
2669
2670         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2671                 return 0;
2672
2673         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2674                         "0458 Bring Adapter online\n");
2675
2676         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2677
2678         if (!lpfc_sli_queue_setup(phba)) {
2679                 lpfc_unblock_mgmt_io(phba);
2680                 return 1;
2681         }
2682
2683         if (phba->sli_rev == LPFC_SLI_REV4) {
2684                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2685                         lpfc_unblock_mgmt_io(phba);
2686                         return 1;
2687                 }
2688                 spin_lock_irq(&phba->hbalock);
2689                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2690                         vpis_cleared = true;
2691                 spin_unlock_irq(&phba->hbalock);
2692         } else {
2693                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2694                         lpfc_unblock_mgmt_io(phba);
2695                         return 1;
2696                 }
2697         }
2698
2699         vports = lpfc_create_vport_work_array(phba);
2700         if (vports != NULL)
2701                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2702                         struct Scsi_Host *shost;
2703                         shost = lpfc_shost_from_vport(vports[i]);
2704                         spin_lock_irq(shost->host_lock);
2705                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2706                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2707                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2708                         if (phba->sli_rev == LPFC_SLI_REV4) {
2709                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2710                                 if ((vpis_cleared) &&
2711                                     (vports[i]->port_type !=
2712                                         LPFC_PHYSICAL_PORT))
2713                                         vports[i]->vpi = 0;
2714                         }
2715                         spin_unlock_irq(shost->host_lock);
2716                 }
2717                 lpfc_destroy_vport_work_array(phba, vports);
2718
2719         lpfc_unblock_mgmt_io(phba);
2720         return 0;
2721 }
2722
2723 /**
2724  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2725  * @phba: pointer to lpfc hba data structure.
2726  *
2727  * This routine marks a HBA's management interface as not blocked. Once the
2728  * HBA's management interface is marked as not blocked, all the user space
2729  * access to the HBA, whether they are from sysfs interface or libdfc
2730  * interface will be allowed. The HBA is set to block the management interface
2731  * when the driver prepares the HBA interface for online or offline and then
2732  * set to unblock the management interface afterwards.
2733  **/
2734 void
2735 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2736 {
2737         unsigned long iflag;
2738
2739         spin_lock_irqsave(&phba->hbalock, iflag);
2740         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2741         spin_unlock_irqrestore(&phba->hbalock, iflag);
2742 }
2743
2744 /**
2745  * lpfc_offline_prep - Prepare a HBA to be brought offline
2746  * @phba: pointer to lpfc hba data structure.
2747  *
2748  * This routine is invoked to prepare a HBA to be brought offline. It performs
2749  * unregistration login to all the nodes on all vports and flushes the mailbox
2750  * queue to make it ready to be brought offline.
2751  **/
2752 void
2753 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2754 {
2755         struct lpfc_vport *vport = phba->pport;
2756         struct lpfc_nodelist  *ndlp, *next_ndlp;
2757         struct lpfc_vport **vports;
2758         struct Scsi_Host *shost;
2759         int i;
2760
2761         if (vport->fc_flag & FC_OFFLINE_MODE)
2762                 return;
2763
2764         lpfc_block_mgmt_io(phba, mbx_action);
2765
2766         lpfc_linkdown(phba);
2767
2768         /* Issue an unreg_login to all nodes on all vports */
2769         vports = lpfc_create_vport_work_array(phba);
2770         if (vports != NULL) {
2771                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2772                         if (vports[i]->load_flag & FC_UNLOADING)
2773                                 continue;
2774                         shost = lpfc_shost_from_vport(vports[i]);
2775                         spin_lock_irq(shost->host_lock);
2776                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2777                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2778                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2779                         spin_unlock_irq(shost->host_lock);
2780
2781                         shost = lpfc_shost_from_vport(vports[i]);
2782                         list_for_each_entry_safe(ndlp, next_ndlp,
2783                                                  &vports[i]->fc_nodes,
2784                                                  nlp_listp) {
2785                                 if (!NLP_CHK_NODE_ACT(ndlp))
2786                                         continue;
2787                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2788                                         continue;
2789                                 if (ndlp->nlp_type & NLP_FABRIC) {
2790                                         lpfc_disc_state_machine(vports[i], ndlp,
2791                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2792                                         lpfc_disc_state_machine(vports[i], ndlp,
2793                                                 NULL, NLP_EVT_DEVICE_RM);
2794                                 }
2795                                 spin_lock_irq(shost->host_lock);
2796                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2797                                 spin_unlock_irq(shost->host_lock);
2798                                 /*
2799                                  * Whenever an SLI4 port goes offline, free the
2800                                  * RPI. Get a new RPI when the adapter port
2801                                  * comes back online.
2802                                  */
2803                                 if (phba->sli_rev == LPFC_SLI_REV4)
2804                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2805                                 lpfc_unreg_rpi(vports[i], ndlp);
2806                         }
2807                 }
2808         }
2809         lpfc_destroy_vport_work_array(phba, vports);
2810
2811         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2812 }
2813
2814 /**
2815  * lpfc_offline - Bring a HBA offline
2816  * @phba: pointer to lpfc hba data structure.
2817  *
2818  * This routine actually brings a HBA offline. It stops all the timers
2819  * associated with the HBA, brings down the SLI layer, and eventually
2820  * marks the HBA as in offline state for the upper layer protocol.
2821  **/
2822 void
2823 lpfc_offline(struct lpfc_hba *phba)
2824 {
2825         struct Scsi_Host  *shost;
2826         struct lpfc_vport **vports;
2827         int i;
2828
2829         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2830                 return;
2831
2832         /* stop port and all timers associated with this hba */
2833         lpfc_stop_port(phba);
2834         vports = lpfc_create_vport_work_array(phba);
2835         if (vports != NULL)
2836                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2837                         lpfc_stop_vport_timers(vports[i]);
2838         lpfc_destroy_vport_work_array(phba, vports);
2839         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2840                         "0460 Bring Adapter offline\n");
2841         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2842            now.  */
2843         lpfc_sli_hba_down(phba);
2844         spin_lock_irq(&phba->hbalock);
2845         phba->work_ha = 0;
2846         spin_unlock_irq(&phba->hbalock);
2847         vports = lpfc_create_vport_work_array(phba);
2848         if (vports != NULL)
2849                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2850                         shost = lpfc_shost_from_vport(vports[i]);
2851                         spin_lock_irq(shost->host_lock);
2852                         vports[i]->work_port_events = 0;
2853                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2854                         spin_unlock_irq(shost->host_lock);
2855                 }
2856         lpfc_destroy_vport_work_array(phba, vports);
2857 }
2858
2859 /**
2860  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2861  * @phba: pointer to lpfc hba data structure.
2862  *
2863  * This routine is to free all the SCSI buffers and IOCBs from the driver
2864  * list back to kernel. It is called from lpfc_pci_remove_one to free
2865  * the internal resources before the device is removed from the system.
2866  **/
2867 static void
2868 lpfc_scsi_free(struct lpfc_hba *phba)
2869 {
2870         struct lpfc_scsi_buf *sb, *sb_next;
2871         struct lpfc_iocbq *io, *io_next;
2872
2873         spin_lock_irq(&phba->hbalock);
2874
2875         /* Release all the lpfc_scsi_bufs maintained by this host. */
2876
2877         spin_lock(&phba->scsi_buf_list_put_lock);
2878         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
2879                                  list) {
2880                 list_del(&sb->list);
2881                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2882                               sb->dma_handle);
2883                 kfree(sb);
2884                 phba->total_scsi_bufs--;
2885         }
2886         spin_unlock(&phba->scsi_buf_list_put_lock);
2887
2888         spin_lock(&phba->scsi_buf_list_get_lock);
2889         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
2890                                  list) {
2891                 list_del(&sb->list);
2892                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2893                               sb->dma_handle);
2894                 kfree(sb);
2895                 phba->total_scsi_bufs--;
2896         }
2897         spin_unlock(&phba->scsi_buf_list_get_lock);
2898
2899         /* Release all the lpfc_iocbq entries maintained by this host. */
2900         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2901                 list_del(&io->list);
2902                 kfree(io);
2903                 phba->total_iocbq_bufs--;
2904         }
2905
2906         spin_unlock_irq(&phba->hbalock);
2907 }
2908
2909 /**
2910  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2911  * @phba: pointer to lpfc hba data structure.
2912  *
2913  * This routine first calculates the sizes of the current els and allocated
2914  * scsi sgl lists, and then goes through all sgls to updates the physical
2915  * XRIs assigned due to port function reset. During port initialization, the
2916  * current els and allocated scsi sgl lists are 0s.
2917  *
2918  * Return codes
2919  *   0 - successful (for now, it always returns 0)
2920  **/
2921 int
2922 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
2923 {
2924         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
2925         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
2926         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
2927         LIST_HEAD(els_sgl_list);
2928         LIST_HEAD(scsi_sgl_list);
2929         int rc;
2930
2931         /*
2932          * update on pci function's els xri-sgl list
2933          */
2934         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
2935         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
2936                 /* els xri-sgl expanded */
2937                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
2938                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2939                                 "3157 ELS xri-sgl count increased from "
2940                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2941                                 els_xri_cnt);
2942                 /* allocate the additional els sgls */
2943                 for (i = 0; i < xri_cnt; i++) {
2944                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
2945                                              GFP_KERNEL);
2946                         if (sglq_entry == NULL) {
2947                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2948                                                 "2562 Failure to allocate an "
2949                                                 "ELS sgl entry:%d\n", i);
2950                                 rc = -ENOMEM;
2951                                 goto out_free_mem;
2952                         }
2953                         sglq_entry->buff_type = GEN_BUFF_TYPE;
2954                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
2955                                                            &sglq_entry->phys);
2956                         if (sglq_entry->virt == NULL) {
2957                                 kfree(sglq_entry);
2958                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2959                                                 "2563 Failure to allocate an "
2960                                                 "ELS mbuf:%d\n", i);
2961                                 rc = -ENOMEM;
2962                                 goto out_free_mem;
2963                         }
2964                         sglq_entry->sgl = sglq_entry->virt;
2965                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
2966                         sglq_entry->state = SGL_FREED;
2967                         list_add_tail(&sglq_entry->list, &els_sgl_list);
2968                 }
2969                 spin_lock_irq(&phba->hbalock);
2970                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2971                 spin_unlock_irq(&phba->hbalock);
2972         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
2973                 /* els xri-sgl shrinked */
2974                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
2975                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2976                                 "3158 ELS xri-sgl count decreased from "
2977                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2978                                 els_xri_cnt);
2979                 spin_lock_irq(&phba->hbalock);
2980                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
2981                 spin_unlock_irq(&phba->hbalock);
2982                 /* release extra els sgls from list */
2983                 for (i = 0; i < xri_cnt; i++) {
2984                         list_remove_head(&els_sgl_list,
2985                                          sglq_entry, struct lpfc_sglq, list);
2986                         if (sglq_entry) {
2987                                 lpfc_mbuf_free(phba, sglq_entry->virt,
2988                                                sglq_entry->phys);
2989                                 kfree(sglq_entry);
2990                         }
2991                 }
2992                 spin_lock_irq(&phba->hbalock);
2993                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2994                 spin_unlock_irq(&phba->hbalock);
2995         } else
2996                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2997                                 "3163 ELS xri-sgl count unchanged: %d\n",
2998                                 els_xri_cnt);
2999         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3000
3001         /* update xris to els sgls on the list */
3002         sglq_entry = NULL;
3003         sglq_entry_next = NULL;
3004         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3005                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3006                 lxri = lpfc_sli4_next_xritag(phba);
3007                 if (lxri == NO_XRI) {
3008                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3009                                         "2400 Failed to allocate xri for "
3010                                         "ELS sgl\n");
3011                         rc = -ENOMEM;
3012                         goto out_free_mem;
3013                 }
3014                 sglq_entry->sli4_lxritag = lxri;
3015                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3016         }
3017
3018         /*
3019          * update on pci function's allocated scsi xri-sgl list
3020          */
3021         phba->total_scsi_bufs = 0;
3022
3023         /* maximum number of xris available for scsi buffers */
3024         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3025                                       els_xri_cnt;
3026
3027         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3028                         "2401 Current allocated SCSI xri-sgl count:%d, "
3029                         "maximum  SCSI xri count:%d\n",
3030                         phba->sli4_hba.scsi_xri_cnt,
3031                         phba->sli4_hba.scsi_xri_max);
3032
3033         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3034         spin_lock(&phba->scsi_buf_list_put_lock);
3035         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3036         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3037         spin_unlock(&phba->scsi_buf_list_put_lock);
3038         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3039
3040         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3041                 /* max scsi xri shrinked below the allocated scsi buffers */
3042                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3043                                         phba->sli4_hba.scsi_xri_max;
3044                 /* release the extra allocated scsi buffers */
3045                 for (i = 0; i < scsi_xri_cnt; i++) {
3046                         list_remove_head(&scsi_sgl_list, psb,
3047                                          struct lpfc_scsi_buf, list);
3048                         pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
3049                                       psb->dma_handle);
3050                         kfree(psb);
3051                 }
3052                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3053                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3054                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3055         }
3056
3057         /* update xris associated to remaining allocated scsi buffers */
3058         psb = NULL;
3059         psb_next = NULL;
3060         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3061                 lxri = lpfc_sli4_next_xritag(phba);
3062                 if (lxri == NO_XRI) {
3063                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3064                                         "2560 Failed to allocate xri for "
3065                                         "scsi buffer\n");
3066                         rc = -ENOMEM;
3067                         goto out_free_mem;
3068                 }
3069                 psb->cur_iocbq.sli4_lxritag = lxri;
3070                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3071         }
3072         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3073         spin_lock(&phba->scsi_buf_list_put_lock);
3074         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3075         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3076         spin_unlock(&phba->scsi_buf_list_put_lock);
3077         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3078
3079         return 0;
3080
3081 out_free_mem:
3082         lpfc_free_els_sgl_list(phba);
3083         lpfc_scsi_free(phba);
3084         return rc;
3085 }
3086
3087 /**
3088  * lpfc_create_port - Create an FC port
3089  * @phba: pointer to lpfc hba data structure.
3090  * @instance: a unique integer ID to this FC port.
3091  * @dev: pointer to the device data structure.
3092  *
3093  * This routine creates a FC port for the upper layer protocol. The FC port
3094  * can be created on top of either a physical port or a virtual port provided
3095  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3096  * and associates the FC port created before adding the shost into the SCSI
3097  * layer.
3098  *
3099  * Return codes
3100  *   @vport - pointer to the virtual N_Port data structure.
3101  *   NULL - port create failed.
3102  **/
3103 struct lpfc_vport *
3104 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3105 {
3106         struct lpfc_vport *vport;
3107         struct Scsi_Host  *shost;
3108         int error = 0;
3109
3110         if (dev != &phba->pcidev->dev)
3111                 shost = scsi_host_alloc(&lpfc_vport_template,
3112                                         sizeof(struct lpfc_vport));
3113         else
3114                 shost = scsi_host_alloc(&lpfc_template,
3115                                         sizeof(struct lpfc_vport));
3116         if (!shost)
3117                 goto out;
3118
3119         vport = (struct lpfc_vport *) shost->hostdata;
3120         vport->phba = phba;
3121         vport->load_flag |= FC_LOADING;
3122         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3123         vport->fc_rscn_flush = 0;
3124
3125         lpfc_get_vport_cfgparam(vport);
3126         shost->unique_id = instance;
3127         shost->max_id = LPFC_MAX_TARGET;
3128         shost->max_lun = vport->cfg_max_luns;
3129         shost->this_id = -1;
3130         shost->max_cmd_len = 16;
3131         if (phba->sli_rev == LPFC_SLI_REV4) {
3132                 shost->dma_boundary =
3133                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3134                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3135         }
3136
3137         /*
3138          * Set initial can_queue value since 0 is no longer supported and
3139          * scsi_add_host will fail. This will be adjusted later based on the
3140          * max xri value determined in hba setup.
3141          */
3142         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3143         if (dev != &phba->pcidev->dev) {
3144                 shost->transportt = lpfc_vport_transport_template;
3145                 vport->port_type = LPFC_NPIV_PORT;
3146         } else {
3147                 shost->transportt = lpfc_transport_template;
3148                 vport->port_type = LPFC_PHYSICAL_PORT;
3149         }
3150
3151         /* Initialize all internally managed lists. */
3152         INIT_LIST_HEAD(&vport->fc_nodes);
3153         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3154         spin_lock_init(&vport->work_port_lock);
3155
3156         init_timer(&vport->fc_disctmo);
3157         vport->fc_disctmo.function = lpfc_disc_timeout;
3158         vport->fc_disctmo.data = (unsigned long)vport;
3159
3160         init_timer(&vport->fc_fdmitmo);
3161         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3162         vport->fc_fdmitmo.data = (unsigned long)vport;
3163
3164         init_timer(&vport->els_tmofunc);
3165         vport->els_tmofunc.function = lpfc_els_timeout;
3166         vport->els_tmofunc.data = (unsigned long)vport;
3167
3168         init_timer(&vport->delayed_disc_tmo);
3169         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3170         vport->delayed_disc_tmo.data = (unsigned long)vport;
3171
3172         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3173         if (error)
3174                 goto out_put_shost;
3175
3176         spin_lock_irq(&phba->hbalock);
3177         list_add_tail(&vport->listentry, &phba->port_list);
3178         spin_unlock_irq(&phba->hbalock);
3179         return vport;
3180
3181 out_put_shost:
3182         scsi_host_put(shost);
3183 out:
3184         return NULL;
3185 }
3186
3187 /**
3188  * destroy_port -  destroy an FC port
3189  * @vport: pointer to an lpfc virtual N_Port data structure.
3190  *
3191  * This routine destroys a FC port from the upper layer protocol. All the
3192  * resources associated with the port are released.
3193  **/
3194 void
3195 destroy_port(struct lpfc_vport *vport)
3196 {
3197         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3198         struct lpfc_hba  *phba = vport->phba;
3199
3200         lpfc_debugfs_terminate(vport);
3201         fc_remove_host(shost);
3202         scsi_remove_host(shost);
3203
3204         spin_lock_irq(&phba->hbalock);
3205         list_del_init(&vport->listentry);
3206         spin_unlock_irq(&phba->hbalock);
3207
3208         lpfc_cleanup(vport);
3209         return;
3210 }
3211
3212 /**
3213  * lpfc_get_instance - Get a unique integer ID
3214  *
3215  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3216  * uses the kernel idr facility to perform the task.
3217  *
3218  * Return codes:
3219  *   instance - a unique integer ID allocated as the new instance.
3220  *   -1 - lpfc get instance failed.
3221  **/
3222 int
3223 lpfc_get_instance(void)
3224 {
3225         int ret;
3226
3227         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3228         return ret < 0 ? -1 : ret;
3229 }
3230
3231 /**
3232  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3233  * @shost: pointer to SCSI host data structure.
3234  * @time: elapsed time of the scan in jiffies.
3235  *
3236  * This routine is called by the SCSI layer with a SCSI host to determine
3237  * whether the scan host is finished.
3238  *
3239  * Note: there is no scan_start function as adapter initialization will have
3240  * asynchronously kicked off the link initialization.
3241  *
3242  * Return codes
3243  *   0 - SCSI host scan is not over yet.
3244  *   1 - SCSI host scan is over.
3245  **/
3246 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3247 {
3248         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3249         struct lpfc_hba   *phba = vport->phba;
3250         int stat = 0;
3251
3252         spin_lock_irq(shost->host_lock);
3253
3254         if (vport->load_flag & FC_UNLOADING) {
3255                 stat = 1;
3256                 goto finished;
3257         }
3258         if (time >= msecs_to_jiffies(30 * 1000)) {
3259                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3260                                 "0461 Scanning longer than 30 "
3261                                 "seconds.  Continuing initialization\n");
3262                 stat = 1;
3263                 goto finished;
3264         }
3265         if (time >= msecs_to_jiffies(15 * 1000) &&
3266             phba->link_state <= LPFC_LINK_DOWN) {
3267                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3268                                 "0465 Link down longer than 15 "
3269                                 "seconds.  Continuing initialization\n");
3270                 stat = 1;
3271                 goto finished;
3272         }
3273
3274         if (vport->port_state != LPFC_VPORT_READY)
3275                 goto finished;
3276         if (vport->num_disc_nodes || vport->fc_prli_sent)
3277                 goto finished;
3278         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3279                 goto finished;
3280         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3281                 goto finished;
3282
3283         stat = 1;
3284
3285 finished:
3286         spin_unlock_irq(shost->host_lock);
3287         return stat;
3288 }
3289
3290 /**
3291  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3292  * @shost: pointer to SCSI host data structure.
3293  *
3294  * This routine initializes a given SCSI host attributes on a FC port. The
3295  * SCSI host can be either on top of a physical port or a virtual port.
3296  **/
3297 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3298 {
3299         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3300         struct lpfc_hba   *phba = vport->phba;
3301         /*
3302          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3303          */
3304
3305         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3306         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3307         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3308
3309         memset(fc_host_supported_fc4s(shost), 0,
3310                sizeof(fc_host_supported_fc4s(shost)));
3311         fc_host_supported_fc4s(shost)[2] = 1;
3312         fc_host_supported_fc4s(shost)[7] = 1;
3313
3314         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3315                                  sizeof fc_host_symbolic_name(shost));
3316
3317         fc_host_supported_speeds(shost) = 0;
3318         if (phba->lmt & LMT_16Gb)
3319                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3320         if (phba->lmt & LMT_10Gb)
3321                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3322         if (phba->lmt & LMT_8Gb)
3323                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3324         if (phba->lmt & LMT_4Gb)
3325                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3326         if (phba->lmt & LMT_2Gb)
3327                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3328         if (phba->lmt & LMT_1Gb)
3329                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3330
3331         fc_host_maxframe_size(shost) =
3332                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3333                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3334
3335         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3336
3337         /* This value is also unchanging */
3338         memset(fc_host_active_fc4s(shost), 0,
3339                sizeof(fc_host_active_fc4s(shost)));
3340         fc_host_active_fc4s(shost)[2] = 1;
3341         fc_host_active_fc4s(shost)[7] = 1;
3342
3343         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3344         spin_lock_irq(shost->host_lock);
3345         vport->load_flag &= ~FC_LOADING;
3346         spin_unlock_irq(shost->host_lock);
3347 }
3348
3349 /**
3350  * lpfc_stop_port_s3 - Stop SLI3 device port
3351  * @phba: pointer to lpfc hba data structure.
3352  *
3353  * This routine is invoked to stop an SLI3 device port, it stops the device
3354  * from generating interrupts and stops the device driver's timers for the
3355  * device.
3356  **/
3357 static void
3358 lpfc_stop_port_s3(struct lpfc_hba *phba)
3359 {
3360         /* Clear all interrupt enable conditions */
3361         writel(0, phba->HCregaddr);
3362         readl(phba->HCregaddr); /* flush */
3363         /* Clear all pending interrupts */
3364         writel(0xffffffff, phba->HAregaddr);
3365         readl(phba->HAregaddr); /* flush */
3366
3367         /* Reset some HBA SLI setup states */
3368         lpfc_stop_hba_timers(phba);
3369         phba->pport->work_port_events = 0;
3370 }
3371
3372 /**
3373  * lpfc_stop_port_s4 - Stop SLI4 device port
3374  * @phba: pointer to lpfc hba data structure.
3375  *
3376  * This routine is invoked to stop an SLI4 device port, it stops the device
3377  * from generating interrupts and stops the device driver's timers for the
3378  * device.
3379  **/
3380 static void
3381 lpfc_stop_port_s4(struct lpfc_hba *phba)
3382 {
3383         /* Reset some HBA SLI4 setup states */
3384         lpfc_stop_hba_timers(phba);
3385         phba->pport->work_port_events = 0;
3386         phba->sli4_hba.intr_enable = 0;
3387 }
3388
3389 /**
3390  * lpfc_stop_port - Wrapper function for stopping hba port
3391  * @phba: Pointer to HBA context object.
3392  *
3393  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3394  * the API jump table function pointer from the lpfc_hba struct.
3395  **/
3396 void
3397 lpfc_stop_port(struct lpfc_hba *phba)
3398 {
3399         phba->lpfc_stop_port(phba);
3400 }
3401
3402 /**
3403  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3404  * @phba: Pointer to hba for which this call is being executed.
3405  *
3406  * This routine starts the timer waiting for the FCF rediscovery to complete.
3407  **/
3408 void
3409 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3410 {
3411         unsigned long fcf_redisc_wait_tmo =
3412                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3413         /* Start fcf rediscovery wait period timer */
3414         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3415         spin_lock_irq(&phba->hbalock);
3416         /* Allow action to new fcf asynchronous event */
3417         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3418         /* Mark the FCF rediscovery pending state */
3419         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3420         spin_unlock_irq(&phba->hbalock);
3421 }
3422
3423 /**
3424  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3425  * @ptr: Map to lpfc_hba data structure pointer.
3426  *
3427  * This routine is invoked when waiting for FCF table rediscover has been
3428  * timed out. If new FCF record(s) has (have) been discovered during the
3429  * wait period, a new FCF event shall be added to the FCOE async event
3430  * list, and then worker thread shall be waked up for processing from the
3431  * worker thread context.
3432  **/
3433 void
3434 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3435 {
3436         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3437
3438         /* Don't send FCF rediscovery event if timer cancelled */
3439         spin_lock_irq(&phba->hbalock);
3440         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3441                 spin_unlock_irq(&phba->hbalock);
3442                 return;
3443         }
3444         /* Clear FCF rediscovery timer pending flag */
3445         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3446         /* FCF rediscovery event to worker thread */
3447         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3448         spin_unlock_irq(&phba->hbalock);
3449         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3450                         "2776 FCF rediscover quiescent timer expired\n");
3451         /* wake up worker thread */
3452         lpfc_worker_wake_up(phba);
3453 }
3454
3455 /**
3456  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3457  * @phba: pointer to lpfc hba data structure.
3458  * @acqe_link: pointer to the async link completion queue entry.
3459  *
3460  * This routine is to parse the SLI4 link-attention link fault code and
3461  * translate it into the base driver's read link attention mailbox command
3462  * status.
3463  *
3464  * Return: Link-attention status in terms of base driver's coding.
3465  **/
3466 static uint16_t
3467 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3468                            struct lpfc_acqe_link *acqe_link)
3469 {
3470         uint16_t latt_fault;
3471
3472         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3473         case LPFC_ASYNC_LINK_FAULT_NONE:
3474         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3475         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3476                 latt_fault = 0;
3477                 break;
3478         default:
3479                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3480                                 "0398 Invalid link fault code: x%x\n",
3481                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3482                 latt_fault = MBXERR_ERROR;
3483                 break;
3484         }
3485         return latt_fault;
3486 }
3487
3488 /**
3489  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3490  * @phba: pointer to lpfc hba data structure.
3491  * @acqe_link: pointer to the async link completion queue entry.
3492  *
3493  * This routine is to parse the SLI4 link attention type and translate it
3494  * into the base driver's link attention type coding.
3495  *
3496  * Return: Link attention type in terms of base driver's coding.
3497  **/
3498 static uint8_t
3499 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3500                           struct lpfc_acqe_link *acqe_link)
3501 {
3502         uint8_t att_type;
3503
3504         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3505         case LPFC_ASYNC_LINK_STATUS_DOWN:
3506         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3507                 att_type = LPFC_ATT_LINK_DOWN;
3508                 break;
3509         case LPFC_ASYNC_LINK_STATUS_UP:
3510                 /* Ignore physical link up events - wait for logical link up */
3511                 att_type = LPFC_ATT_RESERVED;
3512                 break;
3513         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3514                 att_type = LPFC_ATT_LINK_UP;
3515                 break;
3516         default:
3517                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3518                                 "0399 Invalid link attention type: x%x\n",
3519                                 bf_get(lpfc_acqe_link_status, acqe_link));
3520                 att_type = LPFC_ATT_RESERVED;
3521                 break;
3522         }
3523         return att_type;
3524 }
3525
3526 /**
3527  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3528  * @phba: pointer to lpfc hba data structure.
3529  * @acqe_link: pointer to the async link completion queue entry.
3530  *
3531  * This routine is to parse the SLI4 link-attention link speed and translate
3532  * it into the base driver's link-attention link speed coding.
3533  *
3534  * Return: Link-attention link speed in terms of base driver's coding.
3535  **/
3536 static uint8_t
3537 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3538                                 struct lpfc_acqe_link *acqe_link)
3539 {
3540         uint8_t link_speed;
3541
3542         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3543         case LPFC_ASYNC_LINK_SPEED_ZERO:
3544         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3545         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3546                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3547                 break;
3548         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3549                 link_speed = LPFC_LINK_SPEED_1GHZ;
3550                 break;
3551         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3552                 link_speed = LPFC_LINK_SPEED_10GHZ;
3553                 break;
3554         default:
3555                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3556                                 "0483 Invalid link-attention link speed: x%x\n",
3557                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3558                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3559                 break;
3560         }
3561         return link_speed;
3562 }
3563
3564 /**
3565  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3566  * @phba: pointer to lpfc hba data structure.
3567  *
3568  * This routine is to get an SLI3 FC port's link speed in Mbps.
3569  *
3570  * Return: link speed in terms of Mbps.
3571  **/
3572 uint32_t
3573 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3574 {
3575         uint32_t link_speed;
3576
3577         if (!lpfc_is_link_up(phba))
3578                 return 0;
3579
3580         switch (phba->fc_linkspeed) {
3581         case LPFC_LINK_SPEED_1GHZ:
3582                 link_speed = 1000;
3583                 break;
3584         case LPFC_LINK_SPEED_2GHZ:
3585                 link_speed = 2000;
3586                 break;
3587         case LPFC_LINK_SPEED_4GHZ:
3588                 link_speed = 4000;
3589                 break;
3590         case LPFC_LINK_SPEED_8GHZ:
3591                 link_speed = 8000;
3592                 break;
3593         case LPFC_LINK_SPEED_10GHZ:
3594                 link_speed = 10000;
3595                 break;
3596         case LPFC_LINK_SPEED_16GHZ:
3597                 link_speed = 16000;
3598                 break;
3599         default:
3600                 link_speed = 0;
3601         }
3602         return link_speed;
3603 }
3604
3605 /**
3606  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3607  * @phba: pointer to lpfc hba data structure.
3608  * @evt_code: asynchronous event code.
3609  * @speed_code: asynchronous event link speed code.
3610  *
3611  * This routine is to parse the giving SLI4 async event link speed code into
3612  * value of Mbps for the link speed.
3613  *
3614  * Return: link speed in terms of Mbps.
3615  **/
3616 static uint32_t
3617 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3618                            uint8_t speed_code)
3619 {
3620         uint32_t port_speed;
3621
3622         switch (evt_code) {
3623         case LPFC_TRAILER_CODE_LINK:
3624                 switch (speed_code) {
3625                 case LPFC_EVT_CODE_LINK_NO_LINK:
3626                         port_speed = 0;
3627                         break;
3628                 case LPFC_EVT_CODE_LINK_10_MBIT:
3629                         port_speed = 10;
3630                         break;
3631                 case LPFC_EVT_CODE_LINK_100_MBIT:
3632                         port_speed = 100;
3633                         break;
3634                 case LPFC_EVT_CODE_LINK_1_GBIT:
3635                         port_speed = 1000;
3636                         break;
3637                 case LPFC_EVT_CODE_LINK_10_GBIT:
3638                         port_speed = 10000;
3639                         break;
3640                 default:
3641                         port_speed = 0;
3642                 }
3643                 break;
3644         case LPFC_TRAILER_CODE_FC:
3645                 switch (speed_code) {
3646                 case LPFC_EVT_CODE_FC_NO_LINK:
3647                         port_speed = 0;
3648                         break;
3649                 case LPFC_EVT_CODE_FC_1_GBAUD:
3650                         port_speed = 1000;
3651                         break;
3652                 case LPFC_EVT_CODE_FC_2_GBAUD:
3653                         port_speed = 2000;
3654                         break;
3655                 case LPFC_EVT_CODE_FC_4_GBAUD:
3656                         port_speed = 4000;
3657                         break;
3658                 case LPFC_EVT_CODE_FC_8_GBAUD:
3659                         port_speed = 8000;
3660                         break;
3661                 case LPFC_EVT_CODE_FC_10_GBAUD:
3662                         port_speed = 10000;
3663                         break;
3664                 case LPFC_EVT_CODE_FC_16_GBAUD:
3665                         port_speed = 16000;
3666                         break;
3667                 default:
3668                         port_speed = 0;
3669                 }
3670                 break;
3671         default:
3672                 port_speed = 0;
3673         }
3674         return port_speed;
3675 }
3676
3677 /**
3678  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3679  * @phba: pointer to lpfc hba data structure.
3680  * @acqe_link: pointer to the async link completion queue entry.
3681  *
3682  * This routine is to handle the SLI4 asynchronous FCoE link event.
3683  **/
3684 static void
3685 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3686                          struct lpfc_acqe_link *acqe_link)
3687 {
3688         struct lpfc_dmabuf *mp;
3689         LPFC_MBOXQ_t *pmb;
3690         MAILBOX_t *mb;
3691         struct lpfc_mbx_read_top *la;
3692         uint8_t att_type;
3693         int rc;
3694
3695         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3696         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3697                 return;
3698         phba->fcoe_eventtag = acqe_link->event_tag;
3699         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3700         if (!pmb) {
3701                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3702                                 "0395 The mboxq allocation failed\n");
3703                 return;
3704         }
3705         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3706         if (!mp) {
3707                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3708                                 "0396 The lpfc_dmabuf allocation failed\n");
3709                 goto out_free_pmb;
3710         }
3711         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3712         if (!mp->virt) {
3713                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3714                                 "0397 The mbuf allocation failed\n");
3715                 goto out_free_dmabuf;
3716         }
3717
3718         /* Cleanup any outstanding ELS commands */
3719         lpfc_els_flush_all_cmd(phba);
3720
3721         /* Block ELS IOCBs until we have done process link event */
3722         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3723
3724         /* Update link event statistics */
3725         phba->sli.slistat.link_event++;
3726
3727         /* Create lpfc_handle_latt mailbox command from link ACQE */
3728         lpfc_read_topology(phba, pmb, mp);
3729         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3730         pmb->vport = phba->pport;
3731
3732         /* Keep the link status for extra SLI4 state machine reference */
3733         phba->sli4_hba.link_state.speed =
3734                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3735                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3736         phba->sli4_hba.link_state.duplex =
3737                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3738         phba->sli4_hba.link_state.status =
3739                                 bf_get(lpfc_acqe_link_status, acqe_link);
3740         phba->sli4_hba.link_state.type =
3741                                 bf_get(lpfc_acqe_link_type, acqe_link);
3742         phba->sli4_hba.link_state.number =
3743                                 bf_get(lpfc_acqe_link_number, acqe_link);
3744         phba->sli4_hba.link_state.fault =
3745                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3746         phba->sli4_hba.link_state.logical_speed =
3747                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3748
3749         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3750                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3751                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3752                         "Logical speed:%dMbps Fault:%d\n",
3753                         phba->sli4_hba.link_state.speed,
3754                         phba->sli4_hba.link_state.topology,
3755                         phba->sli4_hba.link_state.status,
3756                         phba->sli4_hba.link_state.type,
3757                         phba->sli4_hba.link_state.number,
3758                         phba->sli4_hba.link_state.logical_speed,
3759                         phba->sli4_hba.link_state.fault);
3760         /*
3761          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3762          * topology info. Note: Optional for non FC-AL ports.
3763          */
3764         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3765                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3766                 if (rc == MBX_NOT_FINISHED)
3767                         goto out_free_dmabuf;
3768                 return;
3769         }
3770         /*
3771          * For FCoE Mode: fill in all the topology information we need and call
3772          * the READ_TOPOLOGY completion routine to continue without actually
3773          * sending the READ_TOPOLOGY mailbox command to the port.
3774          */
3775         /* Parse and translate status field */
3776         mb = &pmb->u.mb;
3777         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3778
3779         /* Parse and translate link attention fields */
3780         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3781         la->eventTag = acqe_link->event_tag;
3782         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3783         bf_set(lpfc_mbx_read_top_link_spd, la,
3784                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3785
3786         /* Fake the the following irrelvant fields */
3787         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3788         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3789         bf_set(lpfc_mbx_read_top_il, la, 0);
3790         bf_set(lpfc_mbx_read_top_pb, la, 0);
3791         bf_set(lpfc_mbx_read_top_fa, la, 0);
3792         bf_set(lpfc_mbx_read_top_mm, la, 0);
3793
3794         /* Invoke the lpfc_handle_latt mailbox command callback function */
3795         lpfc_mbx_cmpl_read_topology(phba, pmb);
3796
3797         return;
3798
3799 out_free_dmabuf:
3800         kfree(mp);
3801 out_free_pmb:
3802         mempool_free(pmb, phba->mbox_mem_pool);
3803 }
3804
3805 /**
3806  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3807  * @phba: pointer to lpfc hba data structure.
3808  * @acqe_fc: pointer to the async fc completion queue entry.
3809  *
3810  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3811  * that the event was received and then issue a read_topology mailbox command so
3812  * that the rest of the driver will treat it the same as SLI3.
3813  **/
3814 static void
3815 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3816 {
3817         struct lpfc_dmabuf *mp;
3818         LPFC_MBOXQ_t *pmb;
3819         int rc;
3820
3821         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3822             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3823                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3824                                 "2895 Non FC link Event detected.(%d)\n",
3825                                 bf_get(lpfc_trailer_type, acqe_fc));
3826                 return;
3827         }
3828         /* Keep the link status for extra SLI4 state machine reference */
3829         phba->sli4_hba.link_state.speed =
3830                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3831                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
3832         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3833         phba->sli4_hba.link_state.topology =
3834                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3835         phba->sli4_hba.link_state.status =
3836                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3837         phba->sli4_hba.link_state.type =
3838                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3839         phba->sli4_hba.link_state.number =
3840                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3841         phba->sli4_hba.link_state.fault =
3842                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3843         phba->sli4_hba.link_state.logical_speed =
3844                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
3845         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3846                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3847                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3848                         "%dMbps Fault:%d\n",
3849                         phba->sli4_hba.link_state.speed,
3850                         phba->sli4_hba.link_state.topology,
3851                         phba->sli4_hba.link_state.status,
3852                         phba->sli4_hba.link_state.type,
3853                         phba->sli4_hba.link_state.number,
3854                         phba->sli4_hba.link_state.logical_speed,
3855                         phba->sli4_hba.link_state.fault);
3856         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3857         if (!pmb) {
3858                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3859                                 "2897 The mboxq allocation failed\n");
3860                 return;
3861         }
3862         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3863         if (!mp) {
3864                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3865                                 "2898 The lpfc_dmabuf allocation failed\n");
3866                 goto out_free_pmb;
3867         }
3868         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3869         if (!mp->virt) {
3870                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3871                                 "2899 The mbuf allocation failed\n");
3872                 goto out_free_dmabuf;
3873         }
3874
3875         /* Cleanup any outstanding ELS commands */
3876         lpfc_els_flush_all_cmd(phba);
3877
3878         /* Block ELS IOCBs until we have done process link event */
3879         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3880
3881         /* Update link event statistics */
3882         phba->sli.slistat.link_event++;
3883
3884         /* Create lpfc_handle_latt mailbox command from link ACQE */
3885         lpfc_read_topology(phba, pmb, mp);
3886         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3887         pmb->vport = phba->pport;
3888
3889         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3890         if (rc == MBX_NOT_FINISHED)
3891                 goto out_free_dmabuf;
3892         return;
3893
3894 out_free_dmabuf:
3895         kfree(mp);
3896 out_free_pmb:
3897         mempool_free(pmb, phba->mbox_mem_pool);
3898 }
3899
3900 /**
3901  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3902  * @phba: pointer to lpfc hba data structure.
3903  * @acqe_fc: pointer to the async SLI completion queue entry.
3904  *
3905  * This routine is to handle the SLI4 asynchronous SLI events.
3906  **/
3907 static void
3908 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3909 {
3910         char port_name;
3911         char message[128];
3912         uint8_t status;
3913         struct lpfc_acqe_misconfigured_event *misconfigured;
3914
3915         /* special case misconfigured event as it contains data for all ports */
3916         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3917                  LPFC_SLI_INTF_IF_TYPE_2) ||
3918                 (bf_get(lpfc_trailer_type, acqe_sli) !=
3919                         LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3920                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3921                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3922                                 "x%08x SLI Event Type:%d\n",
3923                                 acqe_sli->event_data1, acqe_sli->event_data2,
3924                                 bf_get(lpfc_trailer_type, acqe_sli));
3925                 return;
3926         }
3927
3928         port_name = phba->Port[0];
3929         if (port_name == 0x00)
3930                 port_name = '?'; /* get port name is empty */
3931
3932         misconfigured = (struct lpfc_acqe_misconfigured_event *)
3933                                         &acqe_sli->event_data1;
3934
3935         /* fetch the status for this port */
3936         switch (phba->sli4_hba.lnk_info.lnk_no) {
3937         case LPFC_LINK_NUMBER_0:
3938                 status = bf_get(lpfc_sli_misconfigured_port0,
3939                                         &misconfigured->theEvent);
3940                 break;
3941         case LPFC_LINK_NUMBER_1:
3942                 status = bf_get(lpfc_sli_misconfigured_port1,
3943                                         &misconfigured->theEvent);
3944                 break;
3945         case LPFC_LINK_NUMBER_2:
3946                 status = bf_get(lpfc_sli_misconfigured_port2,
3947                                         &misconfigured->theEvent);
3948                 break;
3949         case LPFC_LINK_NUMBER_3:
3950                 status = bf_get(lpfc_sli_misconfigured_port3,
3951                                         &misconfigured->theEvent);
3952                 break;
3953         default:
3954                 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3955                 break;
3956         }
3957
3958         switch (status) {
3959         case LPFC_SLI_EVENT_STATUS_VALID:
3960                 return; /* no message if the sfp is okay */
3961         case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
3962                 sprintf(message, "Optics faulted/incorrectly installed/not " \
3963                                 "installed - Reseat optics, if issue not "
3964                                 "resolved, replace.");
3965                 break;
3966         case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3967                 sprintf(message,
3968                         "Optics of two types installed - Remove one optic or " \
3969                         "install matching pair of optics.");
3970                 break;
3971         case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
3972                 sprintf(message, "Incompatible optics - Replace with " \
3973                                 "compatible optics for card to function.");
3974                 break;
3975         default:
3976                 /* firmware is reporting a status we don't know about */
3977                 sprintf(message, "Unknown event status x%02x", status);
3978                 break;
3979         }
3980
3981         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3982                         "3176 Misconfigured Physical Port - "
3983                         "Port Name %c %s\n", port_name, message);
3984 }
3985
3986 /**
3987  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3988  * @vport: pointer to vport data structure.
3989  *
3990  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3991  * response to a CVL event.
3992  *
3993  * Return the pointer to the ndlp with the vport if successful, otherwise
3994  * return NULL.
3995  **/
3996 static struct lpfc_nodelist *
3997 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3998 {
3999         struct lpfc_nodelist *ndlp;
4000         struct Scsi_Host *shost;
4001         struct lpfc_hba *phba;
4002
4003         if (!vport)
4004                 return NULL;
4005         phba = vport->phba;
4006         if (!phba)
4007                 return NULL;
4008         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4009         if (!ndlp) {
4010                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4011                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4012                 if (!ndlp)
4013                         return 0;
4014                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4015                 /* Set the node type */
4016                 ndlp->nlp_type |= NLP_FABRIC;
4017                 /* Put ndlp onto node list */
4018                 lpfc_enqueue_node(vport, ndlp);
4019         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4020                 /* re-setup ndlp without removing from node list */
4021                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4022                 if (!ndlp)
4023                         return 0;
4024         }
4025         if ((phba->pport->port_state < LPFC_FLOGI) &&
4026                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4027                 return NULL;
4028         /* If virtual link is not yet instantiated ignore CVL */
4029         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4030                 && (vport->port_state != LPFC_VPORT_FAILED))
4031                 return NULL;
4032         shost = lpfc_shost_from_vport(vport);
4033         if (!shost)
4034                 return NULL;
4035         lpfc_linkdown_port(vport);
4036         lpfc_cleanup_pending_mbox(vport);
4037         spin_lock_irq(shost->host_lock);
4038         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4039         spin_unlock_irq(shost->host_lock);
4040
4041         return ndlp;
4042 }
4043
4044 /**
4045  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4046  * @vport: pointer to lpfc hba data structure.
4047  *
4048  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4049  * response to a FCF dead event.
4050  **/
4051 static void
4052 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4053 {
4054         struct lpfc_vport **vports;
4055         int i;
4056
4057         vports = lpfc_create_vport_work_array(phba);
4058         if (vports)
4059                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4060                         lpfc_sli4_perform_vport_cvl(vports[i]);
4061         lpfc_destroy_vport_work_array(phba, vports);
4062 }
4063
4064 /**
4065  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4066  * @phba: pointer to lpfc hba data structure.
4067  * @acqe_link: pointer to the async fcoe completion queue entry.
4068  *
4069  * This routine is to handle the SLI4 asynchronous fcoe event.
4070  **/
4071 static void
4072 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4073                         struct lpfc_acqe_fip *acqe_fip)
4074 {
4075         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4076         int rc;
4077         struct lpfc_vport *vport;
4078         struct lpfc_nodelist *ndlp;
4079         struct Scsi_Host  *shost;
4080         int active_vlink_present;
4081         struct lpfc_vport **vports;
4082         int i;
4083
4084         phba->fc_eventTag = acqe_fip->event_tag;
4085         phba->fcoe_eventtag = acqe_fip->event_tag;
4086         switch (event_type) {
4087         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4088         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4089                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4090                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4091                                         LOG_DISCOVERY,
4092                                         "2546 New FCF event, evt_tag:x%x, "
4093                                         "index:x%x\n",
4094                                         acqe_fip->event_tag,
4095                                         acqe_fip->index);
4096                 else
4097                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4098                                         LOG_DISCOVERY,
4099                                         "2788 FCF param modified event, "
4100                                         "evt_tag:x%x, index:x%x\n",
4101                                         acqe_fip->event_tag,
4102                                         acqe_fip->index);
4103                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4104                         /*
4105                          * During period of FCF discovery, read the FCF
4106                          * table record indexed by the event to update
4107                          * FCF roundrobin failover eligible FCF bmask.
4108                          */
4109                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4110                                         LOG_DISCOVERY,
4111                                         "2779 Read FCF (x%x) for updating "
4112                                         "roundrobin FCF failover bmask\n",
4113                                         acqe_fip->index);
4114                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4115                 }
4116
4117                 /* If the FCF discovery is in progress, do nothing. */
4118                 spin_lock_irq(&phba->hbalock);
4119                 if (phba->hba_flag & FCF_TS_INPROG) {
4120                         spin_unlock_irq(&phba->hbalock);
4121                         break;
4122                 }
4123                 /* If fast FCF failover rescan event is pending, do nothing */
4124                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4125                         spin_unlock_irq(&phba->hbalock);
4126                         break;
4127                 }
4128
4129                 /* If the FCF has been in discovered state, do nothing. */
4130                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4131                         spin_unlock_irq(&phba->hbalock);
4132                         break;
4133                 }
4134                 spin_unlock_irq(&phba->hbalock);
4135
4136                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4137                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4138                                 "2770 Start FCF table scan per async FCF "
4139                                 "event, evt_tag:x%x, index:x%x\n",
4140                                 acqe_fip->event_tag, acqe_fip->index);
4141                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4142                                                      LPFC_FCOE_FCF_GET_FIRST);
4143                 if (rc)
4144                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4145                                         "2547 Issue FCF scan read FCF mailbox "
4146                                         "command failed (x%x)\n", rc);
4147                 break;
4148
4149         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4150                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4151                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4152                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4153                         acqe_fip->event_tag);
4154                 break;
4155
4156         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4157                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4158                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4159                         "2549 FCF (x%x) disconnected from network, "
4160                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4161                 /*
4162                  * If we are in the middle of FCF failover process, clear
4163                  * the corresponding FCF bit in the roundrobin bitmap.
4164                  */
4165                 spin_lock_irq(&phba->hbalock);
4166                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4167                         spin_unlock_irq(&phba->hbalock);
4168                         /* Update FLOGI FCF failover eligible FCF bmask */
4169                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4170                         break;
4171                 }
4172                 spin_unlock_irq(&phba->hbalock);
4173
4174                 /* If the event is not for currently used fcf do nothing */
4175                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4176                         break;
4177
4178                 /*
4179                  * Otherwise, request the port to rediscover the entire FCF
4180                  * table for a fast recovery from case that the current FCF
4181                  * is no longer valid as we are not in the middle of FCF
4182                  * failover process already.
4183                  */
4184                 spin_lock_irq(&phba->hbalock);
4185                 /* Mark the fast failover process in progress */
4186                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4187                 spin_unlock_irq(&phba->hbalock);
4188
4189                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4190                                 "2771 Start FCF fast failover process due to "
4191                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4192                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4193                 rc = lpfc_sli4_redisc_fcf_table(phba);
4194                 if (rc) {
4195                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4196                                         LOG_DISCOVERY,
4197                                         "2772 Issue FCF rediscover mabilbox "
4198                                         "command failed, fail through to FCF "
4199                                         "dead event\n");
4200                         spin_lock_irq(&phba->hbalock);
4201                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4202                         spin_unlock_irq(&phba->hbalock);
4203                         /*
4204                          * Last resort will fail over by treating this
4205                          * as a link down to FCF registration.
4206                          */
4207                         lpfc_sli4_fcf_dead_failthrough(phba);
4208                 } else {
4209                         /* Reset FCF roundrobin bmask for new discovery */
4210                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4211                         /*
4212                          * Handling fast FCF failover to a DEAD FCF event is
4213                          * considered equalivant to receiving CVL to all vports.
4214                          */
4215                         lpfc_sli4_perform_all_vport_cvl(phba);
4216                 }
4217                 break;
4218         case LPFC_FIP_EVENT_TYPE_CVL:
4219                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4220                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4221                         "2718 Clear Virtual Link Received for VPI 0x%x"
4222                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4223
4224                 vport = lpfc_find_vport_by_vpid(phba,
4225                                                 acqe_fip->index);
4226                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4227                 if (!ndlp)
4228                         break;
4229                 active_vlink_present = 0;
4230
4231                 vports = lpfc_create_vport_work_array(phba);
4232                 if (vports) {
4233                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4234                                         i++) {
4235                                 if ((!(vports[i]->fc_flag &
4236                                         FC_VPORT_CVL_RCVD)) &&
4237                                         (vports[i]->port_state > LPFC_FDISC)) {
4238                                         active_vlink_present = 1;
4239                                         break;
4240                                 }
4241                         }
4242                         lpfc_destroy_vport_work_array(phba, vports);
4243                 }
4244
4245                 if (active_vlink_present) {
4246                         /*
4247                          * If there are other active VLinks present,
4248                          * re-instantiate the Vlink using FDISC.
4249                          */
4250                         mod_timer(&ndlp->nlp_delayfunc,
4251                                   jiffies + msecs_to_jiffies(1000));
4252                         shost = lpfc_shost_from_vport(vport);
4253                         spin_lock_irq(shost->host_lock);
4254                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4255                         spin_unlock_irq(shost->host_lock);
4256                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4257                         vport->port_state = LPFC_FDISC;
4258                 } else {
4259                         /*
4260                          * Otherwise, we request port to rediscover
4261                          * the entire FCF table for a fast recovery
4262                          * from possible case that the current FCF
4263                          * is no longer valid if we are not already
4264                          * in the FCF failover process.
4265                          */
4266                         spin_lock_irq(&phba->hbalock);
4267                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4268                                 spin_unlock_irq(&phba->hbalock);
4269                                 break;
4270                         }
4271                         /* Mark the fast failover process in progress */
4272                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4273                         spin_unlock_irq(&phba->hbalock);
4274                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4275                                         LOG_DISCOVERY,
4276                                         "2773 Start FCF failover per CVL, "
4277                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4278                         rc = lpfc_sli4_redisc_fcf_table(phba);
4279                         if (rc) {
4280                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4281                                                 LOG_DISCOVERY,
4282                                                 "2774 Issue FCF rediscover "
4283                                                 "mabilbox command failed, "
4284                                                 "through to CVL event\n");
4285                                 spin_lock_irq(&phba->hbalock);
4286                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4287                                 spin_unlock_irq(&phba->hbalock);
4288                                 /*
4289                                  * Last resort will be re-try on the
4290                                  * the current registered FCF entry.
4291                                  */
4292                                 lpfc_retry_pport_discovery(phba);
4293                         } else
4294                                 /*
4295                                  * Reset FCF roundrobin bmask for new
4296                                  * discovery.
4297                                  */
4298                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4299                 }
4300                 break;
4301         default:
4302                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4303                         "0288 Unknown FCoE event type 0x%x event tag "
4304                         "0x%x\n", event_type, acqe_fip->event_tag);
4305                 break;
4306         }
4307 }
4308
4309 /**
4310  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4311  * @phba: pointer to lpfc hba data structure.
4312  * @acqe_link: pointer to the async dcbx completion queue entry.
4313  *
4314  * This routine is to handle the SLI4 asynchronous dcbx event.
4315  **/
4316 static void
4317 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4318                          struct lpfc_acqe_dcbx *acqe_dcbx)
4319 {
4320         phba->fc_eventTag = acqe_dcbx->event_tag;
4321         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4322                         "0290 The SLI4 DCBX asynchronous event is not "
4323                         "handled yet\n");
4324 }
4325
4326 /**
4327  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4328  * @phba: pointer to lpfc hba data structure.
4329  * @acqe_link: pointer to the async grp5 completion queue entry.
4330  *
4331  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4332  * is an asynchronous notified of a logical link speed change.  The Port
4333  * reports the logical link speed in units of 10Mbps.
4334  **/
4335 static void
4336 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4337                          struct lpfc_acqe_grp5 *acqe_grp5)
4338 {
4339         uint16_t prev_ll_spd;
4340
4341         phba->fc_eventTag = acqe_grp5->event_tag;
4342         phba->fcoe_eventtag = acqe_grp5->event_tag;
4343         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4344         phba->sli4_hba.link_state.logical_speed =
4345                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4346         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4347                         "2789 GRP5 Async Event: Updating logical link speed "
4348                         "from %dMbps to %dMbps\n", prev_ll_spd,
4349                         phba->sli4_hba.link_state.logical_speed);
4350 }
4351
4352 /**
4353  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4354  * @phba: pointer to lpfc hba data structure.
4355  *
4356  * This routine is invoked by the worker thread to process all the pending
4357  * SLI4 asynchronous events.
4358  **/
4359 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4360 {
4361         struct lpfc_cq_event *cq_event;
4362
4363         /* First, declare the async event has been handled */
4364         spin_lock_irq(&phba->hbalock);
4365         phba->hba_flag &= ~ASYNC_EVENT;
4366         spin_unlock_irq(&phba->hbalock);
4367         /* Now, handle all the async events */
4368         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4369                 /* Get the first event from the head of the event queue */
4370                 spin_lock_irq(&phba->hbalock);
4371                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4372                                  cq_event, struct lpfc_cq_event, list);
4373                 spin_unlock_irq(&phba->hbalock);
4374                 /* Process the asynchronous event */
4375                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4376                 case LPFC_TRAILER_CODE_LINK:
4377                         lpfc_sli4_async_link_evt(phba,
4378                                                  &cq_event->cqe.acqe_link);
4379                         break;
4380                 case LPFC_TRAILER_CODE_FCOE:
4381                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4382                         break;
4383                 case LPFC_TRAILER_CODE_DCBX:
4384                         lpfc_sli4_async_dcbx_evt(phba,
4385                                                  &cq_event->cqe.acqe_dcbx);
4386                         break;
4387                 case LPFC_TRAILER_CODE_GRP5:
4388                         lpfc_sli4_async_grp5_evt(phba,
4389                                                  &cq_event->cqe.acqe_grp5);
4390                         break;
4391                 case LPFC_TRAILER_CODE_FC:
4392                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4393                         break;
4394                 case LPFC_TRAILER_CODE_SLI:
4395                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4396                         break;
4397                 default:
4398                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4399                                         "1804 Invalid asynchrous event code: "
4400                                         "x%x\n", bf_get(lpfc_trailer_code,
4401                                         &cq_event->cqe.mcqe_cmpl));
4402                         break;
4403                 }
4404                 /* Free the completion event processed to the free pool */
4405                 lpfc_sli4_cq_event_release(phba, cq_event);
4406         }
4407 }
4408
4409 /**
4410  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4411  * @phba: pointer to lpfc hba data structure.
4412  *
4413  * This routine is invoked by the worker thread to process FCF table
4414  * rediscovery pending completion event.
4415  **/
4416 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4417 {
4418         int rc;
4419
4420         spin_lock_irq(&phba->hbalock);
4421         /* Clear FCF rediscovery timeout event */
4422         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4423         /* Clear driver fast failover FCF record flag */
4424         phba->fcf.failover_rec.flag = 0;
4425         /* Set state for FCF fast failover */
4426         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4427         spin_unlock_irq(&phba->hbalock);
4428
4429         /* Scan FCF table from the first entry to re-discover SAN */
4430         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4431                         "2777 Start post-quiescent FCF table scan\n");
4432         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4433         if (rc)
4434                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4435                                 "2747 Issue FCF scan read FCF mailbox "
4436                                 "command failed 0x%x\n", rc);
4437 }
4438
4439 /**
4440  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4441  * @phba: pointer to lpfc hba data structure.
4442  * @dev_grp: The HBA PCI-Device group number.
4443  *
4444  * This routine is invoked to set up the per HBA PCI-Device group function
4445  * API jump table entries.
4446  *
4447  * Return: 0 if success, otherwise -ENODEV
4448  **/
4449 int
4450 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4451 {
4452         int rc;
4453
4454         /* Set up lpfc PCI-device group */
4455         phba->pci_dev_grp = dev_grp;
4456
4457         /* The LPFC_PCI_DEV_OC uses SLI4 */
4458         if (dev_grp == LPFC_PCI_DEV_OC)
4459                 phba->sli_rev = LPFC_SLI_REV4;
4460
4461         /* Set up device INIT API function jump table */
4462         rc = lpfc_init_api_table_setup(phba, dev_grp);
4463         if (rc)
4464                 return -ENODEV;
4465         /* Set up SCSI API function jump table */
4466         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4467         if (rc)
4468                 return -ENODEV;
4469         /* Set up SLI API function jump table */
4470         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4471         if (rc)
4472                 return -ENODEV;
4473         /* Set up MBOX API function jump table */
4474         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4475         if (rc)
4476                 return -ENODEV;
4477
4478         return 0;
4479 }
4480
4481 /**
4482  * lpfc_log_intr_mode - Log the active interrupt mode
4483  * @phba: pointer to lpfc hba data structure.
4484  * @intr_mode: active interrupt mode adopted.
4485  *
4486  * This routine it invoked to log the currently used active interrupt mode
4487  * to the device.
4488  **/
4489 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4490 {
4491         switch (intr_mode) {
4492         case 0:
4493                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4494                                 "0470 Enable INTx interrupt mode.\n");
4495                 break;
4496         case 1:
4497                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4498                                 "0481 Enabled MSI interrupt mode.\n");
4499                 break;
4500         case 2:
4501                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4502                                 "0480 Enabled MSI-X interrupt mode.\n");
4503                 break;
4504         default:
4505                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4506                                 "0482 Illegal interrupt mode.\n");
4507                 break;
4508         }
4509         return;
4510 }
4511
4512 /**
4513  * lpfc_enable_pci_dev - Enable a generic PCI device.
4514  * @phba: pointer to lpfc hba data structure.
4515  *
4516  * This routine is invoked to enable the PCI device that is common to all
4517  * PCI devices.
4518  *
4519  * Return codes
4520  *      0 - successful
4521  *      other values - error
4522  **/
4523 static int
4524 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4525 {
4526         struct pci_dev *pdev;
4527         int bars = 0;
4528
4529         /* Obtain PCI device reference */
4530         if (!phba->pcidev)
4531                 goto out_error;
4532         else
4533                 pdev = phba->pcidev;
4534         /* Select PCI BARs */
4535         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4536         /* Enable PCI device */
4537         if (pci_enable_device_mem(pdev))
4538                 goto out_error;
4539         /* Request PCI resource for the device */
4540         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4541                 goto out_disable_device;
4542         /* Set up device as PCI master and save state for EEH */
4543         pci_set_master(pdev);
4544         pci_try_set_mwi(pdev);
4545         pci_save_state(pdev);
4546
4547         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4548         if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4549                 pdev->needs_freset = 1;
4550
4551         return 0;
4552
4553 out_disable_device:
4554         pci_disable_device(pdev);
4555 out_error:
4556         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4557                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4558         return -ENODEV;
4559 }
4560
4561 /**
4562  * lpfc_disable_pci_dev - Disable a generic PCI device.
4563  * @phba: pointer to lpfc hba data structure.
4564  *
4565  * This routine is invoked to disable the PCI device that is common to all
4566  * PCI devices.
4567  **/
4568 static void
4569 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4570 {
4571         struct pci_dev *pdev;
4572         int bars;
4573
4574         /* Obtain PCI device reference */
4575         if (!phba->pcidev)
4576                 return;
4577         else
4578                 pdev = phba->pcidev;
4579         /* Select PCI BARs */
4580         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4581         /* Release PCI resource and disable PCI device */
4582         pci_release_selected_regions(pdev, bars);
4583         pci_disable_device(pdev);
4584         /* Null out PCI private reference to driver */
4585         pci_set_drvdata(pdev, NULL);
4586
4587         return;
4588 }
4589
4590 /**
4591  * lpfc_reset_hba - Reset a hba
4592  * @phba: pointer to lpfc hba data structure.
4593  *
4594  * This routine is invoked to reset a hba device. It brings the HBA
4595  * offline, performs a board restart, and then brings the board back
4596  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4597  * on outstanding mailbox commands.
4598  **/
4599 void
4600 lpfc_reset_hba(struct lpfc_hba *phba)
4601 {
4602         /* If resets are disabled then set error state and return. */
4603         if (!phba->cfg_enable_hba_reset) {
4604                 phba->link_state = LPFC_HBA_ERROR;
4605                 return;
4606         }
4607         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4608         lpfc_offline(phba);
4609         lpfc_sli_brdrestart(phba);
4610         lpfc_online(phba);
4611         lpfc_unblock_mgmt_io(phba);
4612 }
4613
4614 /**
4615  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4616  * @phba: pointer to lpfc hba data structure.
4617  *
4618  * This function enables the PCI SR-IOV virtual functions to a physical
4619  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4620  * enable the number of virtual functions to the physical function. As
4621  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4622  * API call does not considered as an error condition for most of the device.
4623  **/
4624 uint16_t
4625 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4626 {
4627         struct pci_dev *pdev = phba->pcidev;
4628         uint16_t nr_virtfn;
4629         int pos;
4630
4631         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4632         if (pos == 0)
4633                 return 0;
4634
4635         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4636         return nr_virtfn;
4637 }
4638
4639 /**
4640  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4641  * @phba: pointer to lpfc hba data structure.
4642  * @nr_vfn: number of virtual functions to be enabled.
4643  *
4644  * This function enables the PCI SR-IOV virtual functions to a physical
4645  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4646  * enable the number of virtual functions to the physical function. As
4647  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4648  * API call does not considered as an error condition for most of the device.
4649  **/
4650 int
4651 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4652 {
4653         struct pci_dev *pdev = phba->pcidev;
4654         uint16_t max_nr_vfn;
4655         int rc;
4656
4657         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4658         if (nr_vfn > max_nr_vfn) {
4659                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4660                                 "3057 Requested vfs (%d) greater than "
4661                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4662                 return -EINVAL;
4663         }
4664
4665         rc = pci_enable_sriov(pdev, nr_vfn);
4666         if (rc) {
4667                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4668                                 "2806 Failed to enable sriov on this device "
4669                                 "with vfn number nr_vf:%d, rc:%d\n",
4670                                 nr_vfn, rc);
4671         } else
4672                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4673                                 "2807 Successful enable sriov on this device "
4674                                 "with vfn number nr_vf:%d\n", nr_vfn);
4675         return rc;
4676 }
4677
4678 /**
4679  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4680  * @phba: pointer to lpfc hba data structure.
4681  *
4682  * This routine is invoked to set up the driver internal resources specific to
4683  * support the SLI-3 HBA device it attached to.
4684  *
4685  * Return codes
4686  *      0 - successful
4687  *      other values - error
4688  **/
4689 static int
4690 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4691 {
4692         struct lpfc_sli *psli;
4693         int rc;
4694
4695         /*
4696          * Initialize timers used by driver
4697          */
4698
4699         /* Heartbeat timer */
4700         init_timer(&phba->hb_tmofunc);
4701         phba->hb_tmofunc.function = lpfc_hb_timeout;
4702         phba->hb_tmofunc.data = (unsigned long)phba;
4703
4704         psli = &phba->sli;
4705         /* MBOX heartbeat timer */
4706         init_timer(&psli->mbox_tmo);
4707         psli->mbox_tmo.function = lpfc_mbox_timeout;
4708         psli->mbox_tmo.data = (unsigned long) phba;
4709         /* FCP polling mode timer */
4710         init_timer(&phba->fcp_poll_timer);
4711         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4712         phba->fcp_poll_timer.data = (unsigned long) phba;
4713         /* Fabric block timer */
4714         init_timer(&phba->fabric_block_timer);
4715         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4716         phba->fabric_block_timer.data = (unsigned long) phba;
4717         /* EA polling mode timer */
4718         init_timer(&phba->eratt_poll);
4719         phba->eratt_poll.function = lpfc_poll_eratt;
4720         phba->eratt_poll.data = (unsigned long) phba;
4721
4722         /* Host attention work mask setup */
4723         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4724         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4725
4726         /* Get all the module params for configuring this host */
4727         lpfc_get_cfgparam(phba);
4728         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4729                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4730                 /* check for menlo minimum sg count */
4731                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4732                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4733         }
4734
4735         if (!phba->sli.ring)
4736                 phba->sli.ring = (struct lpfc_sli_ring *)
4737                         kzalloc(LPFC_SLI3_MAX_RING *
4738                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4739         if (!phba->sli.ring)
4740                 return -ENOMEM;
4741
4742         /*
4743          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4744          * used to create the sg_dma_buf_pool must be dynamically calculated.
4745          */
4746
4747         /* Initialize the host templates the configured values. */
4748         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4749         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4750
4751         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
4752         if (phba->cfg_enable_bg) {
4753                 /*
4754                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4755                  * the FCP rsp, and a BDE for each. Sice we have no control
4756                  * over how many protection data segments the SCSI Layer
4757                  * will hand us (ie: there could be one for every block
4758                  * in the IO), we just allocate enough BDEs to accomidate
4759                  * our max amount and we need to limit lpfc_sg_seg_cnt to
4760                  * minimize the risk of running out.
4761                  */
4762                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4763                         sizeof(struct fcp_rsp) +
4764                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
4765
4766                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
4767                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
4768
4769                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
4770                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4771         } else {
4772                 /*
4773                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
4774                  * the FCP rsp, a BDE for each, and a BDE for up to
4775                  * cfg_sg_seg_cnt data segments.
4776                  */
4777                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4778                         sizeof(struct fcp_rsp) +
4779                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4780
4781                 /* Total BDEs in BPL for scsi_sg_list */
4782                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4783         }
4784
4785         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4786                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
4787                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
4788                         phba->cfg_total_seg_cnt);
4789
4790         phba->max_vpi = LPFC_MAX_VPI;
4791         /* This will be set to correct value after config_port mbox */
4792         phba->max_vports = 0;
4793
4794         /*
4795          * Initialize the SLI Layer to run with lpfc HBAs.
4796          */
4797         lpfc_sli_setup(phba);
4798         lpfc_sli_queue_setup(phba);
4799
4800         /* Allocate device driver memory */
4801         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4802                 return -ENOMEM;
4803
4804         /*
4805          * Enable sr-iov virtual functions if supported and configured
4806          * through the module parameter.
4807          */
4808         if (phba->cfg_sriov_nr_virtfn > 0) {
4809                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4810                                                  phba->cfg_sriov_nr_virtfn);
4811                 if (rc) {
4812                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4813                                         "2808 Requested number of SR-IOV "
4814                                         "virtual functions (%d) is not "
4815                                         "supported\n",
4816                                         phba->cfg_sriov_nr_virtfn);
4817                         phba->cfg_sriov_nr_virtfn = 0;
4818                 }
4819         }
4820
4821         return 0;
4822 }
4823
4824 /**
4825  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4826  * @phba: pointer to lpfc hba data structure.
4827  *
4828  * This routine is invoked to unset the driver internal resources set up
4829  * specific for supporting the SLI-3 HBA device it attached to.
4830  **/
4831 static void
4832 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4833 {
4834         /* Free device driver memory allocated */
4835         lpfc_mem_free_all(phba);
4836
4837         return;
4838 }
4839
4840 /**
4841  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4842  * @phba: pointer to lpfc hba data structure.
4843  *
4844  * This routine is invoked to set up the driver internal resources specific to
4845  * support the SLI-4 HBA device it attached to.
4846  *
4847  * Return codes
4848  *      0 - successful
4849  *      other values - error
4850  **/
4851 static int
4852 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4853 {
4854         struct lpfc_vector_map_info *cpup;
4855         struct lpfc_sli *psli;
4856         LPFC_MBOXQ_t *mboxq;
4857         int rc, i, hbq_count, max_buf_size;
4858         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4859         struct lpfc_mqe *mqe;
4860         int longs;
4861
4862         /* Get all the module params for configuring this host */
4863         lpfc_get_cfgparam(phba);
4864
4865         /* Before proceed, wait for POST done and device ready */
4866         rc = lpfc_sli4_post_status_check(phba);
4867         if (rc)
4868                 return -ENODEV;
4869
4870         /*
4871          * Initialize timers used by driver
4872          */
4873
4874         /* Heartbeat timer */
4875         init_timer(&phba->hb_tmofunc);
4876         phba->hb_tmofunc.function = lpfc_hb_timeout;
4877         phba->hb_tmofunc.data = (unsigned long)phba;
4878         init_timer(&phba->rrq_tmr);
4879         phba->rrq_tmr.function = lpfc_rrq_timeout;
4880         phba->rrq_tmr.data = (unsigned long)phba;
4881
4882         psli = &phba->sli;
4883         /* MBOX heartbeat timer */
4884         init_timer(&psli->mbox_tmo);
4885         psli->mbox_tmo.function = lpfc_mbox_timeout;
4886         psli->mbox_tmo.data = (unsigned long) phba;
4887         /* Fabric block timer */
4888         init_timer(&phba->fabric_block_timer);
4889         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4890         phba->fabric_block_timer.data = (unsigned long) phba;
4891         /* EA polling mode timer */
4892         init_timer(&phba->eratt_poll);
4893         phba->eratt_poll.function = lpfc_poll_eratt;
4894         phba->eratt_poll.data = (unsigned long) phba;
4895         /* FCF rediscover timer */
4896         init_timer(&phba->fcf.redisc_wait);
4897         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4898         phba->fcf.redisc_wait.data = (unsigned long)phba;
4899
4900         /*
4901          * Control structure for handling external multi-buffer mailbox
4902          * command pass-through.
4903          */
4904         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4905                 sizeof(struct lpfc_mbox_ext_buf_ctx));
4906         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4907
4908         phba->max_vpi = LPFC_MAX_VPI;
4909
4910         /* This will be set to correct value after the read_config mbox */
4911         phba->max_vports = 0;
4912
4913         /* Program the default value of vlan_id and fc_map */
4914         phba->valid_vlan = 0;
4915         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4916         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4917         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4918
4919         /*
4920          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4921          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4922          */
4923         if (!phba->sli.ring)
4924                 phba->sli.ring = kzalloc(
4925                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
4926                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4927         if (!phba->sli.ring)
4928                 return -ENOMEM;
4929
4930         /*
4931          * It doesn't matter what family our adapter is in, we are
4932          * limited to 2 Pages, 512 SGEs, for our SGL.
4933          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
4934          */
4935         max_buf_size = (2 * SLI4_PAGE_SIZE);
4936         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
4937                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
4938
4939         /*
4940          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4941          * used to create the sg_dma_buf_pool must be dynamically calculated.
4942          */
4943
4944         if (phba->cfg_enable_bg) {
4945                 /*
4946                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4947                  * the FCP rsp, and a SGE for each. Sice we have no control
4948                  * over how many protection data segments the SCSI Layer
4949                  * will hand us (ie: there could be one for every block
4950                  * in the IO), we just allocate enough SGEs to accomidate
4951                  * our max amount and we need to limit lpfc_sg_seg_cnt to
4952                  * minimize the risk of running out.
4953                  */
4954                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4955                         sizeof(struct fcp_rsp) + max_buf_size;
4956
4957                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
4958                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
4959
4960                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
4961                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
4962         } else {
4963                 /*
4964                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
4965                  * the FCP rsp, a SGE for each, and a SGE for up to
4966                  * cfg_sg_seg_cnt data segments.
4967                  */
4968                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4969                         sizeof(struct fcp_rsp) +
4970                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
4971
4972                 /* Total SGEs for scsi_sg_list */
4973                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4974                 /*
4975                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
4976                  * to post 1 page for the SGL.
4977                  */
4978         }
4979
4980         /* Initialize the host templates with the updated values. */
4981         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4982         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4983
4984         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
4985                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
4986         else
4987                 phba->cfg_sg_dma_buf_size =
4988                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
4989
4990         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4991                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
4992                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
4993                         phba->cfg_total_seg_cnt);
4994
4995         /* Initialize buffer queue management fields */
4996         hbq_count = lpfc_sli_hbq_count();
4997         for (i = 0; i < hbq_count; ++i)
4998                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4999         INIT_LIST_HEAD(&phba->rb_pend_list);
5000         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5001         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5002
5003         /*
5004          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5005          */
5006         /* Initialize the Abort scsi buffer list used by driver */
5007         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5008         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5009         /* This abort list used by worker thread */
5010         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5011
5012         /*
5013          * Initialize driver internal slow-path work queues
5014          */
5015
5016         /* Driver internel slow-path CQ Event pool */
5017         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5018         /* Response IOCB work queue list */
5019         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5020         /* Asynchronous event CQ Event work queue list */
5021         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5022         /* Fast-path XRI aborted CQ Event work queue list */
5023         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5024         /* Slow-path XRI aborted CQ Event work queue list */
5025         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5026         /* Receive queue CQ Event work queue list */
5027         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5028
5029         /* Initialize extent block lists. */
5030         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5031         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5032         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5033         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5034
5035         /* Initialize the driver internal SLI layer lists. */
5036         lpfc_sli_setup(phba);
5037         lpfc_sli_queue_setup(phba);
5038
5039         /* Allocate device driver memory */
5040         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5041         if (rc)
5042                 return -ENOMEM;
5043
5044         /* IF Type 2 ports get initialized now. */
5045         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5046             LPFC_SLI_INTF_IF_TYPE_2) {
5047                 rc = lpfc_pci_function_reset(phba);
5048                 if (unlikely(rc))
5049                         return -ENODEV;
5050         }
5051
5052         /* Create the bootstrap mailbox command */
5053         rc = lpfc_create_bootstrap_mbox(phba);
5054         if (unlikely(rc))
5055                 goto out_free_mem;
5056
5057         /* Set up the host's endian order with the device. */
5058         rc = lpfc_setup_endian_order(phba);
5059         if (unlikely(rc))
5060                 goto out_free_bsmbx;
5061
5062         /* Set up the hba's configuration parameters. */
5063         rc = lpfc_sli4_read_config(phba);
5064         if (unlikely(rc))
5065                 goto out_free_bsmbx;
5066
5067         /* IF Type 0 ports get initialized now. */
5068         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5069             LPFC_SLI_INTF_IF_TYPE_0) {
5070                 rc = lpfc_pci_function_reset(phba);
5071                 if (unlikely(rc))
5072                         goto out_free_bsmbx;
5073         }
5074
5075         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5076                                                        GFP_KERNEL);
5077         if (!mboxq) {
5078                 rc = -ENOMEM;
5079                 goto out_free_bsmbx;
5080         }
5081
5082         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5083         lpfc_supported_pages(mboxq);
5084         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5085         if (!rc) {
5086                 mqe = &mboxq->u.mqe;
5087                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5088                        LPFC_MAX_SUPPORTED_PAGES);
5089                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5090                         switch (pn_page[i]) {
5091                         case LPFC_SLI4_PARAMETERS:
5092                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5093                                 break;
5094                         default:
5095                                 break;
5096                         }
5097                 }
5098                 /* Read the port's SLI4 Parameters capabilities if supported. */
5099                 if (phba->sli4_hba.pc_sli4_params.supported)
5100                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5101                 if (rc) {
5102                         mempool_free(mboxq, phba->mbox_mem_pool);
5103                         rc = -EIO;
5104                         goto out_free_bsmbx;
5105                 }
5106         }
5107         /*
5108          * Get sli4 parameters that override parameters from Port capabilities.
5109          * If this call fails, it isn't critical unless the SLI4 parameters come
5110          * back in conflict.
5111          */
5112         rc = lpfc_get_sli4_parameters(phba, mboxq);
5113         if (rc) {
5114                 if (phba->sli4_hba.extents_in_use &&
5115                     phba->sli4_hba.rpi_hdrs_in_use) {
5116                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5117                                 "2999 Unsupported SLI4 Parameters "
5118                                 "Extents and RPI headers enabled.\n");
5119                         goto out_free_bsmbx;
5120                 }
5121         }
5122         mempool_free(mboxq, phba->mbox_mem_pool);
5123         /* Verify all the SLI4 queues */
5124         rc = lpfc_sli4_queue_verify(phba);
5125         if (rc)
5126                 goto out_free_bsmbx;
5127
5128         /* Create driver internal CQE event pool */
5129         rc = lpfc_sli4_cq_event_pool_create(phba);
5130         if (rc)
5131                 goto out_free_bsmbx;
5132
5133         /* Initialize sgl lists per host */
5134         lpfc_init_sgl_list(phba);
5135
5136         /* Allocate and initialize active sgl array */
5137         rc = lpfc_init_active_sgl_array(phba);
5138         if (rc) {
5139                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5140                                 "1430 Failed to initialize sgl list.\n");
5141                 goto out_destroy_cq_event_pool;
5142         }
5143         rc = lpfc_sli4_init_rpi_hdrs(phba);
5144         if (rc) {
5145                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5146                                 "1432 Failed to initialize rpi headers.\n");
5147                 goto out_free_active_sgl;
5148         }
5149
5150         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5151         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5152         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5153                                          GFP_KERNEL);
5154         if (!phba->fcf.fcf_rr_bmask) {
5155                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5156                                 "2759 Failed allocate memory for FCF round "
5157                                 "robin failover bmask\n");
5158                 rc = -ENOMEM;
5159                 goto out_remove_rpi_hdrs;
5160         }
5161
5162         phba->sli4_hba.fcp_eq_hdl =
5163                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5164                             phba->cfg_fcp_io_channel), GFP_KERNEL);
5165         if (!phba->sli4_hba.fcp_eq_hdl) {
5166                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5167                                 "2572 Failed allocate memory for "
5168                                 "fast-path per-EQ handle array\n");
5169                 rc = -ENOMEM;
5170                 goto out_free_fcf_rr_bmask;
5171         }
5172
5173         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5174                                       phba->cfg_fcp_io_channel), GFP_KERNEL);
5175         if (!phba->sli4_hba.msix_entries) {
5176                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5177                                 "2573 Failed allocate memory for msi-x "
5178                                 "interrupt vector entries\n");
5179                 rc = -ENOMEM;
5180                 goto out_free_fcp_eq_hdl;
5181         }
5182
5183         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5184                                          phba->sli4_hba.num_present_cpu),
5185                                          GFP_KERNEL);
5186         if (!phba->sli4_hba.cpu_map) {
5187                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5188                                 "3327 Failed allocate memory for msi-x "
5189                                 "interrupt vector mapping\n");
5190                 rc = -ENOMEM;
5191                 goto out_free_msix;
5192         }
5193         if (lpfc_used_cpu == NULL) {
5194                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5195                                          GFP_KERNEL);
5196                 if (!lpfc_used_cpu) {
5197                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5198                                         "3335 Failed allocate memory for msi-x "
5199                                         "interrupt vector mapping\n");
5200                         kfree(phba->sli4_hba.cpu_map);
5201                         rc = -ENOMEM;
5202                         goto out_free_msix;
5203                 }
5204                 for (i = 0; i < lpfc_present_cpu; i++)
5205                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5206         }
5207
5208         /* Initialize io channels for round robin */
5209         cpup = phba->sli4_hba.cpu_map;
5210         rc = 0;
5211         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5212                 cpup->channel_id = rc;
5213                 rc++;
5214                 if (rc >= phba->cfg_fcp_io_channel)
5215                         rc = 0;
5216         }
5217
5218         /*
5219          * Enable sr-iov virtual functions if supported and configured
5220          * through the module parameter.
5221          */
5222         if (phba->cfg_sriov_nr_virtfn > 0) {
5223                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5224                                                  phba->cfg_sriov_nr_virtfn);
5225                 if (rc) {
5226                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5227                                         "3020 Requested number of SR-IOV "
5228                                         "virtual functions (%d) is not "
5229                                         "supported\n",
5230                                         phba->cfg_sriov_nr_virtfn);
5231                         phba->cfg_sriov_nr_virtfn = 0;
5232                 }
5233         }
5234
5235         return 0;
5236
5237 out_free_msix:
5238         kfree(phba->sli4_hba.msix_entries);
5239 out_free_fcp_eq_hdl:
5240         kfree(phba->sli4_hba.fcp_eq_hdl);
5241 out_free_fcf_rr_bmask:
5242         kfree(phba->fcf.fcf_rr_bmask);
5243 out_remove_rpi_hdrs:
5244         lpfc_sli4_remove_rpi_hdrs(phba);
5245 out_free_active_sgl:
5246         lpfc_free_active_sgl(phba);
5247 out_destroy_cq_event_pool:
5248         lpfc_sli4_cq_event_pool_destroy(phba);
5249 out_free_bsmbx:
5250         lpfc_destroy_bootstrap_mbox(phba);
5251 out_free_mem:
5252         lpfc_mem_free(phba);
5253         return rc;
5254 }
5255
5256 /**
5257  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5258  * @phba: pointer to lpfc hba data structure.
5259  *
5260  * This routine is invoked to unset the driver internal resources set up
5261  * specific for supporting the SLI-4 HBA device it attached to.
5262  **/
5263 static void
5264 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5265 {
5266         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5267
5268         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5269         kfree(phba->sli4_hba.cpu_map);
5270         phba->sli4_hba.num_present_cpu = 0;
5271         phba->sli4_hba.num_online_cpu = 0;
5272
5273         /* Free memory allocated for msi-x interrupt vector entries */
5274         kfree(phba->sli4_hba.msix_entries);
5275
5276         /* Free memory allocated for fast-path work queue handles */
5277         kfree(phba->sli4_hba.fcp_eq_hdl);
5278
5279         /* Free the allocated rpi headers. */
5280         lpfc_sli4_remove_rpi_hdrs(phba);
5281         lpfc_sli4_remove_rpis(phba);
5282
5283         /* Free eligible FCF index bmask */
5284         kfree(phba->fcf.fcf_rr_bmask);
5285
5286         /* Free the ELS sgl list */
5287         lpfc_free_active_sgl(phba);
5288         lpfc_free_els_sgl_list(phba);
5289
5290         /* Free the completion queue EQ event pool */
5291         lpfc_sli4_cq_event_release_all(phba);
5292         lpfc_sli4_cq_event_pool_destroy(phba);
5293
5294         /* Release resource identifiers. */
5295         lpfc_sli4_dealloc_resource_identifiers(phba);
5296
5297         /* Free the bsmbx region. */
5298         lpfc_destroy_bootstrap_mbox(phba);
5299
5300         /* Free the SLI Layer memory with SLI4 HBAs */
5301         lpfc_mem_free_all(phba);
5302
5303         /* Free the current connect table */
5304         list_for_each_entry_safe(conn_entry, next_conn_entry,
5305                 &phba->fcf_conn_rec_list, list) {
5306                 list_del_init(&conn_entry->list);
5307                 kfree(conn_entry);
5308         }
5309
5310         return;
5311 }
5312
5313 /**
5314  * lpfc_init_api_table_setup - Set up init api function jump table
5315  * @phba: The hba struct for which this call is being executed.
5316  * @dev_grp: The HBA PCI-Device group number.
5317  *
5318  * This routine sets up the device INIT interface API function jump table
5319  * in @phba struct.
5320  *
5321  * Returns: 0 - success, -ENODEV - failure.
5322  **/
5323 int
5324 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5325 {
5326         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5327         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5328         phba->lpfc_selective_reset = lpfc_selective_reset;
5329         switch (dev_grp) {
5330         case LPFC_PCI_DEV_LP:
5331                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5332                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5333                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5334                 break;
5335         case LPFC_PCI_DEV_OC:
5336                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5337                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5338                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5339                 break;
5340         default:
5341                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5342                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5343                                 dev_grp);
5344                 return -ENODEV;
5345                 break;
5346         }
5347         return 0;
5348 }
5349
5350 /**
5351  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5352  * @phba: pointer to lpfc hba data structure.
5353  *
5354  * This routine is invoked to set up the driver internal resources before the
5355  * device specific resource setup to support the HBA device it attached to.
5356  *
5357  * Return codes
5358  *      0 - successful
5359  *      other values - error
5360  **/
5361 static int
5362 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5363 {
5364         /*
5365          * Driver resources common to all SLI revisions
5366          */
5367         atomic_set(&phba->fast_event_count, 0);
5368         spin_lock_init(&phba->hbalock);
5369
5370         /* Initialize ndlp management spinlock */
5371         spin_lock_init(&phba->ndlp_lock);
5372
5373         INIT_LIST_HEAD(&phba->port_list);
5374         INIT_LIST_HEAD(&phba->work_list);
5375         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5376
5377         /* Initialize the wait queue head for the kernel thread */
5378         init_waitqueue_head(&phba->work_waitq);
5379
5380         /* Initialize the scsi buffer list used by driver for scsi IO */
5381         spin_lock_init(&phba->scsi_buf_list_get_lock);
5382         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5383         spin_lock_init(&phba->scsi_buf_list_put_lock);
5384         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5385
5386         /* Initialize the fabric iocb list */
5387         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5388
5389         /* Initialize list to save ELS buffers */
5390         INIT_LIST_HEAD(&phba->elsbuf);
5391
5392         /* Initialize FCF connection rec list */
5393         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5394
5395         return 0;
5396 }
5397
5398 /**
5399  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5400  * @phba: pointer to lpfc hba data structure.
5401  *
5402  * This routine is invoked to set up the driver internal resources after the
5403  * device specific resource setup to support the HBA device it attached to.
5404  *
5405  * Return codes
5406  *      0 - successful
5407  *      other values - error
5408  **/
5409 static int
5410 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5411 {
5412         int error;
5413
5414         /* Startup the kernel thread for this host adapter. */
5415         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5416                                           "lpfc_worker_%d", phba->brd_no);
5417         if (IS_ERR(phba->worker_thread)) {
5418                 error = PTR_ERR(phba->worker_thread);
5419                 return error;
5420         }
5421
5422         return 0;
5423 }
5424
5425 /**
5426  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5427  * @phba: pointer to lpfc hba data structure.
5428  *
5429  * This routine is invoked to unset the driver internal resources set up after
5430  * the device specific resource setup for supporting the HBA device it
5431  * attached to.
5432  **/
5433 static void
5434 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5435 {
5436         /* Stop kernel worker thread */
5437         kthread_stop(phba->worker_thread);
5438 }
5439
5440 /**
5441  * lpfc_free_iocb_list - Free iocb list.
5442  * @phba: pointer to lpfc hba data structure.
5443  *
5444  * This routine is invoked to free the driver's IOCB list and memory.
5445  **/
5446 static void
5447 lpfc_free_iocb_list(struct lpfc_hba *phba)
5448 {
5449         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5450
5451         spin_lock_irq(&phba->hbalock);
5452         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5453                                  &phba->lpfc_iocb_list, list) {
5454                 list_del(&iocbq_entry->list);
5455                 kfree(iocbq_entry);
5456                 phba->total_iocbq_bufs--;
5457         }
5458         spin_unlock_irq(&phba->hbalock);
5459
5460         return;
5461 }
5462
5463 /**
5464  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5465  * @phba: pointer to lpfc hba data structure.
5466  *
5467  * This routine is invoked to allocate and initizlize the driver's IOCB
5468  * list and set up the IOCB tag array accordingly.
5469  *
5470  * Return codes
5471  *      0 - successful
5472  *      other values - error
5473  **/
5474 static int
5475 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5476 {
5477         struct lpfc_iocbq *iocbq_entry = NULL;
5478         uint16_t iotag;
5479         int i;
5480
5481         /* Initialize and populate the iocb list per host.  */
5482         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5483         for (i = 0; i < iocb_count; i++) {
5484                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5485                 if (iocbq_entry == NULL) {
5486                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5487                                 "expected %d count. Unloading driver.\n",
5488                                 __func__, i, LPFC_IOCB_LIST_CNT);
5489                         goto out_free_iocbq;
5490                 }
5491
5492                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5493                 if (iotag == 0) {
5494                         kfree(iocbq_entry);
5495                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5496                                 "Unloading driver.\n", __func__);
5497                         goto out_free_iocbq;
5498                 }
5499                 iocbq_entry->sli4_lxritag = NO_XRI;
5500                 iocbq_entry->sli4_xritag = NO_XRI;
5501
5502                 spin_lock_irq(&phba->hbalock);
5503                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5504                 phba->total_iocbq_bufs++;
5505                 spin_unlock_irq(&phba->hbalock);
5506         }
5507
5508         return 0;
5509
5510 out_free_iocbq:
5511         lpfc_free_iocb_list(phba);
5512
5513         return -ENOMEM;
5514 }
5515
5516 /**
5517  * lpfc_free_sgl_list - Free a given sgl list.
5518  * @phba: pointer to lpfc hba data structure.
5519  * @sglq_list: pointer to the head of sgl list.
5520  *
5521  * This routine is invoked to free a give sgl list and memory.
5522  **/
5523 void
5524 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5525 {
5526         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5527
5528         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5529                 list_del(&sglq_entry->list);
5530                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5531                 kfree(sglq_entry);
5532         }
5533 }
5534
5535 /**
5536  * lpfc_free_els_sgl_list - Free els sgl list.
5537  * @phba: pointer to lpfc hba data structure.
5538  *
5539  * This routine is invoked to free the driver's els sgl list and memory.
5540  **/
5541 static void
5542 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5543 {
5544         LIST_HEAD(sglq_list);
5545
5546         /* Retrieve all els sgls from driver list */
5547         spin_lock_irq(&phba->hbalock);
5548         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5549         spin_unlock_irq(&phba->hbalock);
5550
5551         /* Now free the sgl list */
5552         lpfc_free_sgl_list(phba, &sglq_list);
5553 }
5554
5555 /**
5556  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5557  * @phba: pointer to lpfc hba data structure.
5558  *
5559  * This routine is invoked to allocate the driver's active sgl memory.
5560  * This array will hold the sglq_entry's for active IOs.
5561  **/
5562 static int
5563 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5564 {
5565         int size;
5566         size = sizeof(struct lpfc_sglq *);
5567         size *= phba->sli4_hba.max_cfg_param.max_xri;
5568
5569         phba->sli4_hba.lpfc_sglq_active_list =
5570                 kzalloc(size, GFP_KERNEL);
5571         if (!phba->sli4_hba.lpfc_sglq_active_list)
5572                 return -ENOMEM;
5573         return 0;
5574 }
5575
5576 /**
5577  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5578  * @phba: pointer to lpfc hba data structure.
5579  *
5580  * This routine is invoked to walk through the array of active sglq entries
5581  * and free all of the resources.
5582  * This is just a place holder for now.
5583  **/
5584 static void
5585 lpfc_free_active_sgl(struct lpfc_hba *phba)
5586 {
5587         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5588 }
5589
5590 /**
5591  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5592  * @phba: pointer to lpfc hba data structure.
5593  *
5594  * This routine is invoked to allocate and initizlize the driver's sgl
5595  * list and set up the sgl xritag tag array accordingly.
5596  *
5597  **/
5598 static void
5599 lpfc_init_sgl_list(struct lpfc_hba *phba)
5600 {
5601         /* Initialize and populate the sglq list per host/VF. */
5602         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5603         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5604
5605         /* els xri-sgl book keeping */
5606         phba->sli4_hba.els_xri_cnt = 0;
5607
5608         /* scsi xri-buffer book keeping */
5609         phba->sli4_hba.scsi_xri_cnt = 0;
5610 }
5611
5612 /**
5613  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5614  * @phba: pointer to lpfc hba data structure.
5615  *
5616  * This routine is invoked to post rpi header templates to the
5617  * port for those SLI4 ports that do not support extents.  This routine
5618  * posts a PAGE_SIZE memory region to the port to hold up to
5619  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5620  * and should be called only when interrupts are disabled.
5621  *
5622  * Return codes
5623  *      0 - successful
5624  *      -ERROR - otherwise.
5625  **/
5626 int
5627 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5628 {
5629         int rc = 0;
5630         struct lpfc_rpi_hdr *rpi_hdr;
5631
5632         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5633         if (!phba->sli4_hba.rpi_hdrs_in_use)
5634                 return rc;
5635         if (phba->sli4_hba.extents_in_use)
5636                 return -EIO;
5637
5638         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5639         if (!rpi_hdr) {
5640                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5641                                 "0391 Error during rpi post operation\n");
5642                 lpfc_sli4_remove_rpis(phba);
5643                 rc = -ENODEV;
5644         }
5645
5646         return rc;
5647 }
5648
5649 /**
5650  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5651  * @phba: pointer to lpfc hba data structure.
5652  *
5653  * This routine is invoked to allocate a single 4KB memory region to
5654  * support rpis and stores them in the phba.  This single region
5655  * provides support for up to 64 rpis.  The region is used globally
5656  * by the device.
5657  *
5658  * Returns:
5659  *   A valid rpi hdr on success.
5660  *   A NULL pointer on any failure.
5661  **/
5662 struct lpfc_rpi_hdr *
5663 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5664 {
5665         uint16_t rpi_limit, curr_rpi_range;
5666         struct lpfc_dmabuf *dmabuf;
5667         struct lpfc_rpi_hdr *rpi_hdr;
5668         uint32_t rpi_count;
5669
5670         /*
5671          * If the SLI4 port supports extents, posting the rpi header isn't
5672          * required.  Set the expected maximum count and let the actual value
5673          * get set when extents are fully allocated.
5674          */
5675         if (!phba->sli4_hba.rpi_hdrs_in_use)
5676                 return NULL;
5677         if (phba->sli4_hba.extents_in_use)
5678                 return NULL;
5679
5680         /* The limit on the logical index is just the max_rpi count. */
5681         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5682         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5683
5684         spin_lock_irq(&phba->hbalock);
5685         /*
5686          * Establish the starting RPI in this header block.  The starting
5687          * rpi is normalized to a zero base because the physical rpi is
5688          * port based.
5689          */
5690         curr_rpi_range = phba->sli4_hba.next_rpi;
5691         spin_unlock_irq(&phba->hbalock);
5692
5693         /*
5694          * The port has a limited number of rpis. The increment here
5695          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5696          * and to allow the full max_rpi range per port.
5697          */
5698         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5699                 rpi_count = rpi_limit - curr_rpi_range;
5700         else
5701                 rpi_count = LPFC_RPI_HDR_COUNT;
5702
5703         if (!rpi_count)
5704                 return NULL;
5705         /*
5706          * First allocate the protocol header region for the port.  The
5707          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5708          */
5709         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5710         if (!dmabuf)
5711                 return NULL;
5712
5713         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5714                                           LPFC_HDR_TEMPLATE_SIZE,
5715                                           &dmabuf->phys,
5716                                           GFP_KERNEL);
5717         if (!dmabuf->virt) {
5718                 rpi_hdr = NULL;
5719                 goto err_free_dmabuf;
5720         }
5721
5722         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5723         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5724                 rpi_hdr = NULL;
5725                 goto err_free_coherent;
5726         }
5727
5728         /* Save the rpi header data for cleanup later. */
5729         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5730         if (!rpi_hdr)
5731                 goto err_free_coherent;
5732
5733         rpi_hdr->dmabuf = dmabuf;
5734         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5735         rpi_hdr->page_count = 1;
5736         spin_lock_irq(&phba->hbalock);
5737
5738         /* The rpi_hdr stores the logical index only. */
5739         rpi_hdr->start_rpi = curr_rpi_range;
5740         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5741
5742         /*
5743          * The next_rpi stores the next logical module-64 rpi value used
5744          * to post physical rpis in subsequent rpi postings.
5745          */
5746         phba->sli4_hba.next_rpi += rpi_count;
5747         spin_unlock_irq(&phba->hbalock);
5748         return rpi_hdr;
5749
5750  err_free_coherent:
5751         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5752                           dmabuf->virt, dmabuf->phys);
5753  err_free_dmabuf:
5754         kfree(dmabuf);
5755         return NULL;
5756 }
5757
5758 /**
5759  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5760  * @phba: pointer to lpfc hba data structure.
5761  *
5762  * This routine is invoked to remove all memory resources allocated
5763  * to support rpis for SLI4 ports not supporting extents. This routine
5764  * presumes the caller has released all rpis consumed by fabric or port
5765  * logins and is prepared to have the header pages removed.
5766  **/
5767 void
5768 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5769 {
5770         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5771
5772         if (!phba->sli4_hba.rpi_hdrs_in_use)
5773                 goto exit;
5774
5775         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5776                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5777                 list_del(&rpi_hdr->list);
5778                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5779                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5780                 kfree(rpi_hdr->dmabuf);
5781                 kfree(rpi_hdr);
5782         }
5783  exit:
5784         /* There are no rpis available to the port now. */
5785         phba->sli4_hba.next_rpi = 0;
5786 }
5787
5788 /**
5789  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5790  * @pdev: pointer to pci device data structure.
5791  *
5792  * This routine is invoked to allocate the driver hba data structure for an
5793  * HBA device. If the allocation is successful, the phba reference to the
5794  * PCI device data structure is set.
5795  *
5796  * Return codes
5797  *      pointer to @phba - successful
5798  *      NULL - error
5799  **/
5800 static struct lpfc_hba *
5801 lpfc_hba_alloc(struct pci_dev *pdev)
5802 {
5803         struct lpfc_hba *phba;
5804
5805         /* Allocate memory for HBA structure */
5806         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5807         if (!phba) {
5808                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5809                 return NULL;
5810         }
5811
5812         /* Set reference to PCI device in HBA structure */
5813         phba->pcidev = pdev;
5814
5815         /* Assign an unused board number */
5816         phba->brd_no = lpfc_get_instance();
5817         if (phba->brd_no < 0) {
5818                 kfree(phba);
5819                 return NULL;
5820         }
5821
5822         spin_lock_init(&phba->ct_ev_lock);
5823         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5824
5825         return phba;
5826 }
5827
5828 /**
5829  * lpfc_hba_free - Free driver hba data structure with a device.
5830  * @phba: pointer to lpfc hba data structure.
5831  *
5832  * This routine is invoked to free the driver hba data structure with an
5833  * HBA device.
5834  **/
5835 static void
5836 lpfc_hba_free(struct lpfc_hba *phba)
5837 {
5838         /* Release the driver assigned board number */
5839         idr_remove(&lpfc_hba_index, phba->brd_no);
5840
5841         /* Free memory allocated with sli rings */
5842         kfree(phba->sli.ring);
5843         phba->sli.ring = NULL;
5844
5845         kfree(phba);
5846         return;
5847 }
5848
5849 /**
5850  * lpfc_create_shost - Create hba physical port with associated scsi host.
5851  * @phba: pointer to lpfc hba data structure.
5852  *
5853  * This routine is invoked to create HBA physical port and associate a SCSI
5854  * host with it.
5855  *
5856  * Return codes
5857  *      0 - successful
5858  *      other values - error
5859  **/
5860 static int
5861 lpfc_create_shost(struct lpfc_hba *phba)
5862 {
5863         struct lpfc_vport *vport;
5864         struct Scsi_Host  *shost;
5865
5866         /* Initialize HBA FC structure */
5867         phba->fc_edtov = FF_DEF_EDTOV;
5868         phba->fc_ratov = FF_DEF_RATOV;
5869         phba->fc_altov = FF_DEF_ALTOV;
5870         phba->fc_arbtov = FF_DEF_ARBTOV;
5871
5872         atomic_set(&phba->sdev_cnt, 0);
5873         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5874         if (!vport)
5875                 return -ENODEV;
5876
5877         shost = lpfc_shost_from_vport(vport);
5878         phba->pport = vport;
5879         lpfc_debugfs_initialize(vport);
5880         /* Put reference to SCSI host to driver's device private data */
5881         pci_set_drvdata(phba->pcidev, shost);
5882
5883         return 0;
5884 }
5885
5886 /**
5887  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5888  * @phba: pointer to lpfc hba data structure.
5889  *
5890  * This routine is invoked to destroy HBA physical port and the associated
5891  * SCSI host.
5892  **/
5893 static void
5894 lpfc_destroy_shost(struct lpfc_hba *phba)
5895 {
5896         struct lpfc_vport *vport = phba->pport;
5897
5898         /* Destroy physical port that associated with the SCSI host */
5899         destroy_port(vport);
5900
5901         return;
5902 }
5903
5904 /**
5905  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5906  * @phba: pointer to lpfc hba data structure.
5907  * @shost: the shost to be used to detect Block guard settings.
5908  *
5909  * This routine sets up the local Block guard protocol settings for @shost.
5910  * This routine also allocates memory for debugging bg buffers.
5911  **/
5912 static void
5913 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5914 {
5915         uint32_t old_mask;
5916         uint32_t old_guard;
5917
5918         int pagecnt = 10;
5919         if (lpfc_prot_mask && lpfc_prot_guard) {
5920                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5921                                 "1478 Registering BlockGuard with the "
5922                                 "SCSI layer\n");
5923
5924                 old_mask = lpfc_prot_mask;
5925                 old_guard = lpfc_prot_guard;
5926
5927                 /* Only allow supported values */
5928                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5929                         SHOST_DIX_TYPE0_PROTECTION |
5930                         SHOST_DIX_TYPE1_PROTECTION);
5931                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5932
5933                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5934                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5935                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5936
5937                 if (lpfc_prot_mask && lpfc_prot_guard) {
5938                         if ((old_mask != lpfc_prot_mask) ||
5939                                 (old_guard != lpfc_prot_guard))
5940                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5941                                         "1475 Registering BlockGuard with the "
5942                                         "SCSI layer: mask %d  guard %d\n",
5943                                         lpfc_prot_mask, lpfc_prot_guard);
5944
5945                         scsi_host_set_prot(shost, lpfc_prot_mask);
5946                         scsi_host_set_guard(shost, lpfc_prot_guard);
5947                 } else
5948                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5949                                 "1479 Not Registering BlockGuard with the SCSI "
5950                                 "layer, Bad protection parameters: %d %d\n",
5951                                 old_mask, old_guard);
5952         }
5953
5954         if (!_dump_buf_data) {
5955                 while (pagecnt) {
5956                         spin_lock_init(&_dump_buf_lock);
5957                         _dump_buf_data =
5958                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5959                         if (_dump_buf_data) {
5960                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5961                                         "9043 BLKGRD: allocated %d pages for "
5962                                        "_dump_buf_data at 0x%p\n",
5963                                        (1 << pagecnt), _dump_buf_data);
5964                                 _dump_buf_data_order = pagecnt;
5965                                 memset(_dump_buf_data, 0,
5966                                        ((1 << PAGE_SHIFT) << pagecnt));
5967                                 break;
5968                         } else
5969                                 --pagecnt;
5970                 }
5971                 if (!_dump_buf_data_order)
5972                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5973                                 "9044 BLKGRD: ERROR unable to allocate "
5974                                "memory for hexdump\n");
5975         } else
5976                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5977                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5978                        "\n", _dump_buf_data);
5979         if (!_dump_buf_dif) {
5980                 while (pagecnt) {
5981                         _dump_buf_dif =
5982                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5983                         if (_dump_buf_dif) {
5984                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5985                                         "9046 BLKGRD: allocated %d pages for "
5986                                        "_dump_buf_dif at 0x%p\n",
5987                                        (1 << pagecnt), _dump_buf_dif);
5988                                 _dump_buf_dif_order = pagecnt;
5989                                 memset(_dump_buf_dif, 0,
5990                                        ((1 << PAGE_SHIFT) << pagecnt));
5991                                 break;
5992                         } else
5993                                 --pagecnt;
5994                 }
5995                 if (!_dump_buf_dif_order)
5996                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5997                         "9047 BLKGRD: ERROR unable to allocate "
5998                                "memory for hexdump\n");
5999         } else
6000                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6001                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6002                        _dump_buf_dif);
6003 }
6004
6005 /**
6006  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6007  * @phba: pointer to lpfc hba data structure.
6008  *
6009  * This routine is invoked to perform all the necessary post initialization
6010  * setup for the device.
6011  **/
6012 static void
6013 lpfc_post_init_setup(struct lpfc_hba *phba)
6014 {
6015         struct Scsi_Host  *shost;
6016         struct lpfc_adapter_event_header adapter_event;
6017
6018         /* Get the default values for Model Name and Description */
6019         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6020
6021         /*
6022          * hba setup may have changed the hba_queue_depth so we need to
6023          * adjust the value of can_queue.
6024          */
6025         shost = pci_get_drvdata(phba->pcidev);
6026         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6027         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6028                 lpfc_setup_bg(phba, shost);
6029
6030         lpfc_host_attrib_init(shost);
6031
6032         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6033                 spin_lock_irq(shost->host_lock);
6034                 lpfc_poll_start_timer(phba);
6035                 spin_unlock_irq(shost->host_lock);
6036         }
6037
6038         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6039                         "0428 Perform SCSI scan\n");
6040         /* Send board arrival event to upper layer */
6041         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6042         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6043         fc_host_post_vendor_event(shost, fc_get_event_number(),
6044                                   sizeof(adapter_event),
6045                                   (char *) &adapter_event,
6046                                   LPFC_NL_VENDOR_ID);
6047         return;
6048 }
6049
6050 /**
6051  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6052  * @phba: pointer to lpfc hba data structure.
6053  *
6054  * This routine is invoked to set up the PCI device memory space for device
6055  * with SLI-3 interface spec.
6056  *
6057  * Return codes
6058  *      0 - successful
6059  *      other values - error
6060  **/
6061 static int
6062 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6063 {
6064         struct pci_dev *pdev;
6065         unsigned long bar0map_len, bar2map_len;
6066         int i, hbq_count;
6067         void *ptr;
6068         int error = -ENODEV;
6069
6070         /* Obtain PCI device reference */
6071         if (!phba->pcidev)
6072                 return error;
6073         else
6074                 pdev = phba->pcidev;
6075
6076         /* Set the device DMA mask size */
6077         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6078          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6079                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6080                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6081                         return error;
6082                 }
6083         }
6084
6085         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6086          * required by each mapping.
6087          */
6088         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6089         bar0map_len = pci_resource_len(pdev, 0);
6090
6091         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6092         bar2map_len = pci_resource_len(pdev, 2);
6093
6094         /* Map HBA SLIM to a kernel virtual address. */
6095         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6096         if (!phba->slim_memmap_p) {
6097                 dev_printk(KERN_ERR, &pdev->dev,
6098                            "ioremap failed for SLIM memory.\n");
6099                 goto out;
6100         }
6101
6102         /* Map HBA Control Registers to a kernel virtual address. */
6103         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6104         if (!phba->ctrl_regs_memmap_p) {
6105                 dev_printk(KERN_ERR, &pdev->dev,
6106                            "ioremap failed for HBA control registers.\n");
6107                 goto out_iounmap_slim;
6108         }
6109
6110         /* Allocate memory for SLI-2 structures */
6111         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
6112                                                SLI2_SLIM_SIZE,
6113                                                &phba->slim2p.phys,
6114                                                GFP_KERNEL);
6115         if (!phba->slim2p.virt)
6116                 goto out_iounmap;
6117
6118         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
6119         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6120         phba->mbox_ext = (phba->slim2p.virt +
6121                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6122         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6123         phba->IOCBs = (phba->slim2p.virt +
6124                        offsetof(struct lpfc_sli2_slim, IOCBs));
6125
6126         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6127                                                  lpfc_sli_hbq_size(),
6128                                                  &phba->hbqslimp.phys,
6129                                                  GFP_KERNEL);
6130         if (!phba->hbqslimp.virt)
6131                 goto out_free_slim;
6132
6133         hbq_count = lpfc_sli_hbq_count();
6134         ptr = phba->hbqslimp.virt;
6135         for (i = 0; i < hbq_count; ++i) {
6136                 phba->hbqs[i].hbq_virt = ptr;
6137                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6138                 ptr += (lpfc_hbq_defs[i]->entry_count *
6139                         sizeof(struct lpfc_hbq_entry));
6140         }
6141         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6142         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6143
6144         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6145
6146         INIT_LIST_HEAD(&phba->rb_pend_list);
6147
6148         phba->MBslimaddr = phba->slim_memmap_p;
6149         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6150         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6151         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6152         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6153
6154         return 0;
6155
6156 out_free_slim:
6157         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6158                           phba->slim2p.virt, phba->slim2p.phys);
6159 out_iounmap:
6160         iounmap(phba->ctrl_regs_memmap_p);
6161 out_iounmap_slim:
6162         iounmap(phba->slim_memmap_p);
6163 out:
6164         return error;
6165 }
6166
6167 /**
6168  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6169  * @phba: pointer to lpfc hba data structure.
6170  *
6171  * This routine is invoked to unset the PCI device memory space for device
6172  * with SLI-3 interface spec.
6173  **/
6174 static void
6175 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6176 {
6177         struct pci_dev *pdev;
6178
6179         /* Obtain PCI device reference */
6180         if (!phba->pcidev)
6181                 return;
6182         else
6183                 pdev = phba->pcidev;
6184
6185         /* Free coherent DMA memory allocated */
6186         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6187                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6188         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6189                           phba->slim2p.virt, phba->slim2p.phys);
6190
6191         /* I/O memory unmap */
6192         iounmap(phba->ctrl_regs_memmap_p);
6193         iounmap(phba->slim_memmap_p);
6194
6195         return;
6196 }
6197
6198 /**
6199  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6200  * @phba: pointer to lpfc hba data structure.
6201  *
6202  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6203  * done and check status.
6204  *
6205  * Return 0 if successful, otherwise -ENODEV.
6206  **/
6207 int
6208 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6209 {
6210         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6211         struct lpfc_register reg_data;
6212         int i, port_error = 0;
6213         uint32_t if_type;
6214
6215         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6216         memset(&reg_data, 0, sizeof(reg_data));
6217         if (!phba->sli4_hba.PSMPHRregaddr)
6218                 return -ENODEV;
6219
6220         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6221         for (i = 0; i < 3000; i++) {
6222                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6223                         &portsmphr_reg.word0) ||
6224                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6225                         /* Port has a fatal POST error, break out */
6226                         port_error = -ENODEV;
6227                         break;
6228                 }
6229                 if (LPFC_POST_STAGE_PORT_READY ==
6230                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6231                         break;
6232                 msleep(10);
6233         }
6234
6235         /*
6236          * If there was a port error during POST, then don't proceed with
6237          * other register reads as the data may not be valid.  Just exit.
6238          */
6239         if (port_error) {
6240                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6241                         "1408 Port Failed POST - portsmphr=0x%x, "
6242                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6243                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6244                         portsmphr_reg.word0,
6245                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6246                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6247                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6248                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6249                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6250                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6251                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6252                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6253         } else {
6254                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6255                                 "2534 Device Info: SLIFamily=0x%x, "
6256                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6257                                 "SLIHint_2=0x%x, FT=0x%x\n",
6258                                 bf_get(lpfc_sli_intf_sli_family,
6259                                        &phba->sli4_hba.sli_intf),
6260                                 bf_get(lpfc_sli_intf_slirev,
6261                                        &phba->sli4_hba.sli_intf),
6262                                 bf_get(lpfc_sli_intf_if_type,
6263                                        &phba->sli4_hba.sli_intf),
6264                                 bf_get(lpfc_sli_intf_sli_hint1,
6265                                        &phba->sli4_hba.sli_intf),
6266                                 bf_get(lpfc_sli_intf_sli_hint2,
6267                                        &phba->sli4_hba.sli_intf),
6268                                 bf_get(lpfc_sli_intf_func_type,
6269                                        &phba->sli4_hba.sli_intf));
6270                 /*
6271                  * Check for other Port errors during the initialization
6272                  * process.  Fail the load if the port did not come up
6273                  * correctly.
6274                  */
6275                 if_type = bf_get(lpfc_sli_intf_if_type,
6276                                  &phba->sli4_hba.sli_intf);
6277                 switch (if_type) {
6278                 case LPFC_SLI_INTF_IF_TYPE_0:
6279                         phba->sli4_hba.ue_mask_lo =
6280                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6281                         phba->sli4_hba.ue_mask_hi =
6282                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6283                         uerrlo_reg.word0 =
6284                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6285                         uerrhi_reg.word0 =
6286                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6287                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6288                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6289                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6290                                                 "1422 Unrecoverable Error "
6291                                                 "Detected during POST "
6292                                                 "uerr_lo_reg=0x%x, "
6293                                                 "uerr_hi_reg=0x%x, "
6294                                                 "ue_mask_lo_reg=0x%x, "
6295                                                 "ue_mask_hi_reg=0x%x\n",
6296                                                 uerrlo_reg.word0,
6297                                                 uerrhi_reg.word0,
6298                                                 phba->sli4_hba.ue_mask_lo,
6299                                                 phba->sli4_hba.ue_mask_hi);
6300                                 port_error = -ENODEV;
6301                         }
6302                         break;
6303                 case LPFC_SLI_INTF_IF_TYPE_2:
6304                         /* Final checks.  The port status should be clean. */
6305                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6306                                 &reg_data.word0) ||
6307                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6308                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6309                                 phba->work_status[0] =
6310                                         readl(phba->sli4_hba.u.if_type2.
6311                                               ERR1regaddr);
6312                                 phba->work_status[1] =
6313                                         readl(phba->sli4_hba.u.if_type2.
6314                                               ERR2regaddr);
6315                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6316                                         "2888 Unrecoverable port error "
6317                                         "following POST: port status reg "
6318                                         "0x%x, port_smphr reg 0x%x, "
6319                                         "error 1=0x%x, error 2=0x%x\n",
6320                                         reg_data.word0,
6321                                         portsmphr_reg.word0,
6322                                         phba->work_status[0],
6323                                         phba->work_status[1]);
6324                                 port_error = -ENODEV;
6325                         }
6326                         break;
6327                 case LPFC_SLI_INTF_IF_TYPE_1:
6328                 default:
6329                         break;
6330                 }
6331         }
6332         return port_error;
6333 }
6334
6335 /**
6336  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6337  * @phba: pointer to lpfc hba data structure.
6338  * @if_type:  The SLI4 interface type getting configured.
6339  *
6340  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6341  * memory map.
6342  **/
6343 static void
6344 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6345 {
6346         switch (if_type) {
6347         case LPFC_SLI_INTF_IF_TYPE_0:
6348                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6349                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6350                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6351                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6352                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6353                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6354                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6355                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6356                 phba->sli4_hba.SLIINTFregaddr =
6357                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6358                 break;
6359         case LPFC_SLI_INTF_IF_TYPE_2:
6360                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6361                         phba->sli4_hba.conf_regs_memmap_p +
6362                                                 LPFC_CTL_PORT_ER1_OFFSET;
6363                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6364                         phba->sli4_hba.conf_regs_memmap_p +
6365                                                 LPFC_CTL_PORT_ER2_OFFSET;
6366                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6367                         phba->sli4_hba.conf_regs_memmap_p +
6368                                                 LPFC_CTL_PORT_CTL_OFFSET;
6369                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6370                         phba->sli4_hba.conf_regs_memmap_p +
6371                                                 LPFC_CTL_PORT_STA_OFFSET;
6372                 phba->sli4_hba.SLIINTFregaddr =
6373                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6374                 phba->sli4_hba.PSMPHRregaddr =
6375                         phba->sli4_hba.conf_regs_memmap_p +
6376                                                 LPFC_CTL_PORT_SEM_OFFSET;
6377                 phba->sli4_hba.RQDBregaddr =
6378                         phba->sli4_hba.conf_regs_memmap_p +
6379                                                 LPFC_ULP0_RQ_DOORBELL;
6380                 phba->sli4_hba.WQDBregaddr =
6381                         phba->sli4_hba.conf_regs_memmap_p +
6382                                                 LPFC_ULP0_WQ_DOORBELL;
6383                 phba->sli4_hba.EQCQDBregaddr =
6384                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6385                 phba->sli4_hba.MQDBregaddr =
6386                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6387                 phba->sli4_hba.BMBXregaddr =
6388                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6389                 break;
6390         case LPFC_SLI_INTF_IF_TYPE_1:
6391         default:
6392                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6393                            "FATAL - unsupported SLI4 interface type - %d\n",
6394                            if_type);
6395                 break;
6396         }
6397 }
6398
6399 /**
6400  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6401  * @phba: pointer to lpfc hba data structure.
6402  *
6403  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6404  * memory map.
6405  **/
6406 static void
6407 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6408 {
6409         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6410                 LPFC_SLIPORT_IF0_SMPHR;
6411         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6412                 LPFC_HST_ISR0;
6413         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6414                 LPFC_HST_IMR0;
6415         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6416                 LPFC_HST_ISCR0;
6417 }
6418
6419 /**
6420  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6421  * @phba: pointer to lpfc hba data structure.
6422  * @vf: virtual function number
6423  *
6424  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6425  * based on the given viftual function number, @vf.
6426  *
6427  * Return 0 if successful, otherwise -ENODEV.
6428  **/
6429 static int
6430 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6431 {
6432         if (vf > LPFC_VIR_FUNC_MAX)
6433                 return -ENODEV;
6434
6435         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6436                                 vf * LPFC_VFR_PAGE_SIZE +
6437                                         LPFC_ULP0_RQ_DOORBELL);
6438         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6439                                 vf * LPFC_VFR_PAGE_SIZE +
6440                                         LPFC_ULP0_WQ_DOORBELL);
6441         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6442                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6443         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6444                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6445         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6446                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6447         return 0;
6448 }
6449
6450 /**
6451  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6452  * @phba: pointer to lpfc hba data structure.
6453  *
6454  * This routine is invoked to create the bootstrap mailbox
6455  * region consistent with the SLI-4 interface spec.  This
6456  * routine allocates all memory necessary to communicate
6457  * mailbox commands to the port and sets up all alignment
6458  * needs.  No locks are expected to be held when calling
6459  * this routine.
6460  *
6461  * Return codes
6462  *      0 - successful
6463  *      -ENOMEM - could not allocated memory.
6464  **/
6465 static int
6466 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6467 {
6468         uint32_t bmbx_size;
6469         struct lpfc_dmabuf *dmabuf;
6470         struct dma_address *dma_address;
6471         uint32_t pa_addr;
6472         uint64_t phys_addr;
6473
6474         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6475         if (!dmabuf)
6476                 return -ENOMEM;
6477
6478         /*
6479          * The bootstrap mailbox region is comprised of 2 parts
6480          * plus an alignment restriction of 16 bytes.
6481          */
6482         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6483         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6484                                           bmbx_size,
6485                                           &dmabuf->phys,
6486                                           GFP_KERNEL);
6487         if (!dmabuf->virt) {
6488                 kfree(dmabuf);
6489                 return -ENOMEM;
6490         }
6491         memset(dmabuf->virt, 0, bmbx_size);
6492
6493         /*
6494          * Initialize the bootstrap mailbox pointers now so that the register
6495          * operations are simple later.  The mailbox dma address is required
6496          * to be 16-byte aligned.  Also align the virtual memory as each
6497          * maibox is copied into the bmbx mailbox region before issuing the
6498          * command to the port.
6499          */
6500         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6501         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6502
6503         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6504                                               LPFC_ALIGN_16_BYTE);
6505         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6506                                               LPFC_ALIGN_16_BYTE);
6507
6508         /*
6509          * Set the high and low physical addresses now.  The SLI4 alignment
6510          * requirement is 16 bytes and the mailbox is posted to the port
6511          * as two 30-bit addresses.  The other data is a bit marking whether
6512          * the 30-bit address is the high or low address.
6513          * Upcast bmbx aphys to 64bits so shift instruction compiles
6514          * clean on 32 bit machines.
6515          */
6516         dma_address = &phba->sli4_hba.bmbx.dma_address;
6517         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6518         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6519         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6520                                            LPFC_BMBX_BIT1_ADDR_HI);
6521
6522         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6523         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6524                                            LPFC_BMBX_BIT1_ADDR_LO);
6525         return 0;
6526 }
6527
6528 /**
6529  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6530  * @phba: pointer to lpfc hba data structure.
6531  *
6532  * This routine is invoked to teardown the bootstrap mailbox
6533  * region and release all host resources. This routine requires
6534  * the caller to ensure all mailbox commands recovered, no
6535  * additional mailbox comands are sent, and interrupts are disabled
6536  * before calling this routine.
6537  *
6538  **/
6539 static void
6540 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6541 {
6542         dma_free_coherent(&phba->pcidev->dev,
6543                           phba->sli4_hba.bmbx.bmbx_size,
6544                           phba->sli4_hba.bmbx.dmabuf->virt,
6545                           phba->sli4_hba.bmbx.dmabuf->phys);
6546
6547         kfree(phba->sli4_hba.bmbx.dmabuf);
6548         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6549 }
6550
6551 /**
6552  * lpfc_sli4_read_config - Get the config parameters.
6553  * @phba: pointer to lpfc hba data structure.
6554  *
6555  * This routine is invoked to read the configuration parameters from the HBA.
6556  * The configuration parameters are used to set the base and maximum values
6557  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6558  * allocation for the port.
6559  *
6560  * Return codes
6561  *      0 - successful
6562  *      -ENOMEM - No available memory
6563  *      -EIO - The mailbox failed to complete successfully.
6564  **/
6565 int
6566 lpfc_sli4_read_config(struct lpfc_hba *phba)
6567 {
6568         LPFC_MBOXQ_t *pmb;
6569         struct lpfc_mbx_read_config *rd_config;
6570         union  lpfc_sli4_cfg_shdr *shdr;
6571         uint32_t shdr_status, shdr_add_status;
6572         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6573         struct lpfc_rsrc_desc_fcfcoe *desc;
6574         char *pdesc_0;
6575         uint32_t desc_count;
6576         int length, i, rc = 0, rc2;
6577
6578         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6579         if (!pmb) {
6580                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6581                                 "2011 Unable to allocate memory for issuing "
6582                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6583                 return -ENOMEM;
6584         }
6585
6586         lpfc_read_config(phba, pmb);
6587
6588         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6589         if (rc != MBX_SUCCESS) {
6590                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6591                         "2012 Mailbox failed , mbxCmd x%x "
6592                         "READ_CONFIG, mbxStatus x%x\n",
6593                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6594                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6595                 rc = -EIO;
6596         } else {
6597                 rd_config = &pmb->u.mqe.un.rd_config;
6598                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6599                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6600                         phba->sli4_hba.lnk_info.lnk_tp =
6601                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6602                         phba->sli4_hba.lnk_info.lnk_no =
6603                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6604                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6605                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6606                                         phba->sli4_hba.lnk_info.lnk_tp,
6607                                         phba->sli4_hba.lnk_info.lnk_no);
6608                 } else
6609                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6610                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6611                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6612                 phba->sli4_hba.extents_in_use =
6613                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6614                 phba->sli4_hba.max_cfg_param.max_xri =
6615                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6616                 phba->sli4_hba.max_cfg_param.xri_base =
6617                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6618                 phba->sli4_hba.max_cfg_param.max_vpi =
6619                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6620                 phba->sli4_hba.max_cfg_param.vpi_base =
6621                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6622                 phba->sli4_hba.max_cfg_param.max_rpi =
6623                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6624                 phba->sli4_hba.max_cfg_param.rpi_base =
6625                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6626                 phba->sli4_hba.max_cfg_param.max_vfi =
6627                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6628                 phba->sli4_hba.max_cfg_param.vfi_base =
6629                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6630                 phba->sli4_hba.max_cfg_param.max_fcfi =
6631                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6632                 phba->sli4_hba.max_cfg_param.max_eq =
6633                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6634                 phba->sli4_hba.max_cfg_param.max_rq =
6635                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6636                 phba->sli4_hba.max_cfg_param.max_wq =
6637                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6638                 phba->sli4_hba.max_cfg_param.max_cq =
6639                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6640                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6641                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6642                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6643                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6644                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6645                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6646                 phba->max_vports = phba->max_vpi;
6647                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6648                                 "2003 cfg params Extents? %d "
6649                                 "XRI(B:%d M:%d), "
6650                                 "VPI(B:%d M:%d) "
6651                                 "VFI(B:%d M:%d) "
6652                                 "RPI(B:%d M:%d) "
6653                                 "FCFI(Count:%d)\n",
6654                                 phba->sli4_hba.extents_in_use,
6655                                 phba->sli4_hba.max_cfg_param.xri_base,
6656                                 phba->sli4_hba.max_cfg_param.max_xri,
6657                                 phba->sli4_hba.max_cfg_param.vpi_base,
6658                                 phba->sli4_hba.max_cfg_param.max_vpi,
6659                                 phba->sli4_hba.max_cfg_param.vfi_base,
6660                                 phba->sli4_hba.max_cfg_param.max_vfi,
6661                                 phba->sli4_hba.max_cfg_param.rpi_base,
6662                                 phba->sli4_hba.max_cfg_param.max_rpi,
6663                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6664         }
6665
6666         if (rc)
6667                 goto read_cfg_out;
6668
6669         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6670         length = phba->sli4_hba.max_cfg_param.max_xri -
6671                         lpfc_sli4_get_els_iocb_cnt(phba);
6672         if (phba->cfg_hba_queue_depth > length) {
6673                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6674                                 "3361 HBA queue depth changed from %d to %d\n",
6675                                 phba->cfg_hba_queue_depth, length);
6676                 phba->cfg_hba_queue_depth = length;
6677         }
6678
6679         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6680             LPFC_SLI_INTF_IF_TYPE_2)
6681                 goto read_cfg_out;
6682
6683         /* get the pf# and vf# for SLI4 if_type 2 port */
6684         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6685                   sizeof(struct lpfc_sli4_cfg_mhdr));
6686         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6687                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6688                          length, LPFC_SLI4_MBX_EMBED);
6689
6690         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6691         shdr = (union lpfc_sli4_cfg_shdr *)
6692                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6693         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6694         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6695         if (rc2 || shdr_status || shdr_add_status) {
6696                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6697                                 "3026 Mailbox failed , mbxCmd x%x "
6698                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6699                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6700                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6701                 goto read_cfg_out;
6702         }
6703
6704         /* search for fc_fcoe resrouce descriptor */
6705         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6706         desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6707
6708         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6709         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6710         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6711         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6712                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6713         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6714                 goto read_cfg_out;
6715
6716         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6717                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6718                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6719                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6720                         phba->sli4_hba.iov.pf_number =
6721                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6722                         phba->sli4_hba.iov.vf_number =
6723                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6724                         break;
6725                 }
6726         }
6727
6728         if (i < LPFC_RSRC_DESC_MAX_NUM)
6729                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6730                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6731                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6732                                 phba->sli4_hba.iov.vf_number);
6733         else
6734                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6735                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6736                                 "Resrouce Descriptor:x%x\n",
6737                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6738
6739 read_cfg_out:
6740         mempool_free(pmb, phba->mbox_mem_pool);
6741         return rc;
6742 }
6743
6744 /**
6745  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6746  * @phba: pointer to lpfc hba data structure.
6747  *
6748  * This routine is invoked to setup the port-side endian order when
6749  * the port if_type is 0.  This routine has no function for other
6750  * if_types.
6751  *
6752  * Return codes
6753  *      0 - successful
6754  *      -ENOMEM - No available memory
6755  *      -EIO - The mailbox failed to complete successfully.
6756  **/
6757 static int
6758 lpfc_setup_endian_order(struct lpfc_hba *phba)
6759 {
6760         LPFC_MBOXQ_t *mboxq;
6761         uint32_t if_type, rc = 0;
6762         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6763                                       HOST_ENDIAN_HIGH_WORD1};
6764
6765         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6766         switch (if_type) {
6767         case LPFC_SLI_INTF_IF_TYPE_0:
6768                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6769                                                        GFP_KERNEL);
6770                 if (!mboxq) {
6771                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6772                                         "0492 Unable to allocate memory for "
6773                                         "issuing SLI_CONFIG_SPECIAL mailbox "
6774                                         "command\n");
6775                         return -ENOMEM;
6776                 }
6777
6778                 /*
6779                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6780                  * two words to contain special data values and no other data.
6781                  */
6782                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6783                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6784                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6785                 if (rc != MBX_SUCCESS) {
6786                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6787                                         "0493 SLI_CONFIG_SPECIAL mailbox "
6788                                         "failed with status x%x\n",
6789                                         rc);
6790                         rc = -EIO;
6791                 }
6792                 mempool_free(mboxq, phba->mbox_mem_pool);
6793                 break;
6794         case LPFC_SLI_INTF_IF_TYPE_2:
6795         case LPFC_SLI_INTF_IF_TYPE_1:
6796         default:
6797                 break;
6798         }
6799         return rc;
6800 }
6801
6802 /**
6803  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6804  * @phba: pointer to lpfc hba data structure.
6805  *
6806  * This routine is invoked to check the user settable queue counts for EQs and
6807  * CQs. after this routine is called the counts will be set to valid values that
6808  * adhere to the constraints of the system's interrupt vectors and the port's
6809  * queue resources.
6810  *
6811  * Return codes
6812  *      0 - successful
6813  *      -ENOMEM - No available memory
6814  **/
6815 static int
6816 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6817 {
6818         int cfg_fcp_io_channel;
6819         uint32_t cpu;
6820         uint32_t i = 0;
6821
6822         /*
6823          * Sanity check for configured queue parameters against the run-time
6824          * device parameters
6825          */
6826
6827         /* Sanity check on HBA EQ parameters */
6828         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6829
6830         /* It doesn't make sense to have more io channels then online CPUs */
6831         for_each_present_cpu(cpu) {
6832                 if (cpu_online(cpu))
6833                         i++;
6834         }
6835         phba->sli4_hba.num_online_cpu = i;
6836         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6837
6838         if (i < cfg_fcp_io_channel) {
6839                 lpfc_printf_log(phba,
6840                                 KERN_ERR, LOG_INIT,
6841                                 "3188 Reducing IO channels to match number of "
6842                                 "online CPUs: from %d to %d\n",
6843                                 cfg_fcp_io_channel, i);
6844                 cfg_fcp_io_channel = i;
6845         }
6846
6847         if (cfg_fcp_io_channel >
6848             phba->sli4_hba.max_cfg_param.max_eq) {
6849                 if (phba->sli4_hba.max_cfg_param.max_eq <
6850                     LPFC_FCP_IO_CHAN_MIN) {
6851                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6852                                         "2574 Not enough EQs (%d) from the "
6853                                         "pci function for supporting FCP "
6854                                         "EQs (%d)\n",
6855                                         phba->sli4_hba.max_cfg_param.max_eq,
6856                                         phba->cfg_fcp_io_channel);
6857                         goto out_error;
6858                 }
6859                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6860                                 "2575 Reducing IO channels to match number of "
6861                                 "available EQs: from %d to %d\n",
6862                                 cfg_fcp_io_channel,
6863                                 phba->sli4_hba.max_cfg_param.max_eq);
6864                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
6865         }
6866
6867         /* The actual number of FCP event queues adopted */
6868         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
6869
6870         /* Get EQ depth from module parameter, fake the default for now */
6871         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6872         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6873
6874         /* Get CQ depth from module parameter, fake the default for now */
6875         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6876         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6877
6878         return 0;
6879 out_error:
6880         return -ENOMEM;
6881 }
6882
6883 /**
6884  * lpfc_sli4_queue_create - Create all the SLI4 queues
6885  * @phba: pointer to lpfc hba data structure.
6886  *
6887  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6888  * operation. For each SLI4 queue type, the parameters such as queue entry
6889  * count (queue depth) shall be taken from the module parameter. For now,
6890  * we just use some constant number as place holder.
6891  *
6892  * Return codes
6893  *      0 - successful
6894  *      -ENOMEM - No availble memory
6895  *      -EIO - The mailbox failed to complete successfully.
6896  **/
6897 int
6898 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6899 {
6900         struct lpfc_queue *qdesc;
6901         int idx;
6902
6903         /*
6904          * Create HBA Record arrays.
6905          */
6906         if (!phba->cfg_fcp_io_channel)
6907                 return -ERANGE;
6908
6909         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6910         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6911         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6912         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6913         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6914         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6915
6916         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
6917                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6918         if (!phba->sli4_hba.hba_eq) {
6919                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6920                         "2576 Failed allocate memory for "
6921                         "fast-path EQ record array\n");
6922                 goto out_error;
6923         }
6924
6925         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6926                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6927         if (!phba->sli4_hba.fcp_cq) {
6928                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6929                                 "2577 Failed allocate memory for fast-path "
6930                                 "CQ record array\n");
6931                 goto out_error;
6932         }
6933
6934         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6935                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6936         if (!phba->sli4_hba.fcp_wq) {
6937                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6938                                 "2578 Failed allocate memory for fast-path "
6939                                 "WQ record array\n");
6940                 goto out_error;
6941         }
6942
6943         /*
6944          * Since the first EQ can have multiple CQs associated with it,
6945          * this array is used to quickly see if we have a FCP fast-path
6946          * CQ match.
6947          */
6948         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
6949                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
6950         if (!phba->sli4_hba.fcp_cq_map) {
6951                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6952                                 "2545 Failed allocate memory for fast-path "
6953                                 "CQ map\n");
6954                 goto out_error;
6955         }
6956
6957         /*
6958          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
6959          * how many EQs to create.
6960          */
6961         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6962
6963                 /* Create EQs */
6964                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6965                                               phba->sli4_hba.eq_ecount);
6966                 if (!qdesc) {
6967                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6968                                         "0497 Failed allocate EQ (%d)\n", idx);
6969                         goto out_error;
6970                 }
6971                 phba->sli4_hba.hba_eq[idx] = qdesc;
6972
6973                 /* Create Fast Path FCP CQs */
6974                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6975                                               phba->sli4_hba.cq_ecount);
6976                 if (!qdesc) {
6977                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6978                                         "0499 Failed allocate fast-path FCP "
6979                                         "CQ (%d)\n", idx);
6980                         goto out_error;
6981                 }
6982                 phba->sli4_hba.fcp_cq[idx] = qdesc;
6983
6984                 /* Create Fast Path FCP WQs */
6985                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6986                                               phba->sli4_hba.wq_ecount);
6987                 if (!qdesc) {
6988                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6989                                         "0503 Failed allocate fast-path FCP "
6990                                         "WQ (%d)\n", idx);
6991                         goto out_error;
6992                 }
6993                 phba->sli4_hba.fcp_wq[idx] = qdesc;
6994         }
6995
6996
6997         /*
6998          * Create Slow Path Completion Queues (CQs)
6999          */
7000
7001         /* Create slow-path Mailbox Command Complete Queue */
7002         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7003                                       phba->sli4_hba.cq_ecount);
7004         if (!qdesc) {
7005                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7006                                 "0500 Failed allocate slow-path mailbox CQ\n");
7007                 goto out_error;
7008         }
7009         phba->sli4_hba.mbx_cq = qdesc;
7010
7011         /* Create slow-path ELS Complete Queue */
7012         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7013                                       phba->sli4_hba.cq_ecount);
7014         if (!qdesc) {
7015                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7016                                 "0501 Failed allocate slow-path ELS CQ\n");
7017                 goto out_error;
7018         }
7019         phba->sli4_hba.els_cq = qdesc;
7020
7021
7022         /*
7023          * Create Slow Path Work Queues (WQs)
7024          */
7025
7026         /* Create Mailbox Command Queue */
7027
7028         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7029                                       phba->sli4_hba.mq_ecount);
7030         if (!qdesc) {
7031                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7032                                 "0505 Failed allocate slow-path MQ\n");
7033                 goto out_error;
7034         }
7035         phba->sli4_hba.mbx_wq = qdesc;
7036
7037         /*
7038          * Create ELS Work Queues
7039          */
7040
7041         /* Create slow-path ELS Work Queue */
7042         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7043                                       phba->sli4_hba.wq_ecount);
7044         if (!qdesc) {
7045                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7046                                 "0504 Failed allocate slow-path ELS WQ\n");
7047                 goto out_error;
7048         }
7049         phba->sli4_hba.els_wq = qdesc;
7050
7051         /*
7052          * Create Receive Queue (RQ)
7053          */
7054
7055         /* Create Receive Queue for header */
7056         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7057                                       phba->sli4_hba.rq_ecount);
7058         if (!qdesc) {
7059                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7060                                 "0506 Failed allocate receive HRQ\n");
7061                 goto out_error;
7062         }
7063         phba->sli4_hba.hdr_rq = qdesc;
7064
7065         /* Create Receive Queue for data */
7066         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7067                                       phba->sli4_hba.rq_ecount);
7068         if (!qdesc) {
7069                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7070                                 "0507 Failed allocate receive DRQ\n");
7071                 goto out_error;
7072         }
7073         phba->sli4_hba.dat_rq = qdesc;
7074
7075         return 0;
7076
7077 out_error:
7078         lpfc_sli4_queue_destroy(phba);
7079         return -ENOMEM;
7080 }
7081
7082 /**
7083  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7084  * @phba: pointer to lpfc hba data structure.
7085  *
7086  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7087  * operation.
7088  *
7089  * Return codes
7090  *      0 - successful
7091  *      -ENOMEM - No available memory
7092  *      -EIO - The mailbox failed to complete successfully.
7093  **/
7094 void
7095 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7096 {
7097         int idx;
7098
7099         if (phba->sli4_hba.hba_eq != NULL) {
7100                 /* Release HBA event queue */
7101                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7102                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7103                                 lpfc_sli4_queue_free(
7104                                         phba->sli4_hba.hba_eq[idx]);
7105                                 phba->sli4_hba.hba_eq[idx] = NULL;
7106                         }
7107                 }
7108                 kfree(phba->sli4_hba.hba_eq);
7109                 phba->sli4_hba.hba_eq = NULL;
7110         }
7111
7112         if (phba->sli4_hba.fcp_cq != NULL) {
7113                 /* Release FCP completion queue */
7114                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7115                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7116                                 lpfc_sli4_queue_free(
7117                                         phba->sli4_hba.fcp_cq[idx]);
7118                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7119                         }
7120                 }
7121                 kfree(phba->sli4_hba.fcp_cq);
7122                 phba->sli4_hba.fcp_cq = NULL;
7123         }
7124
7125         if (phba->sli4_hba.fcp_wq != NULL) {
7126                 /* Release FCP work queue */
7127                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7128                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7129                                 lpfc_sli4_queue_free(
7130                                         phba->sli4_hba.fcp_wq[idx]);
7131                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7132                         }
7133                 }
7134                 kfree(phba->sli4_hba.fcp_wq);
7135                 phba->sli4_hba.fcp_wq = NULL;
7136         }
7137
7138         /* Release FCP CQ mapping array */
7139         if (phba->sli4_hba.fcp_cq_map != NULL) {
7140                 kfree(phba->sli4_hba.fcp_cq_map);
7141                 phba->sli4_hba.fcp_cq_map = NULL;
7142         }
7143
7144         /* Release mailbox command work queue */
7145         if (phba->sli4_hba.mbx_wq != NULL) {
7146                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7147                 phba->sli4_hba.mbx_wq = NULL;
7148         }
7149
7150         /* Release ELS work queue */
7151         if (phba->sli4_hba.els_wq != NULL) {
7152                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7153                 phba->sli4_hba.els_wq = NULL;
7154         }
7155
7156         /* Release unsolicited receive queue */
7157         if (phba->sli4_hba.hdr_rq != NULL) {
7158                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7159                 phba->sli4_hba.hdr_rq = NULL;
7160         }
7161         if (phba->sli4_hba.dat_rq != NULL) {
7162                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7163                 phba->sli4_hba.dat_rq = NULL;
7164         }
7165
7166         /* Release ELS complete queue */
7167         if (phba->sli4_hba.els_cq != NULL) {
7168                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7169                 phba->sli4_hba.els_cq = NULL;
7170         }
7171
7172         /* Release mailbox command complete queue */
7173         if (phba->sli4_hba.mbx_cq != NULL) {
7174                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7175                 phba->sli4_hba.mbx_cq = NULL;
7176         }
7177
7178         return;
7179 }
7180
7181 /**
7182  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7183  * @phba: pointer to lpfc hba data structure.
7184  *
7185  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7186  * operation.
7187  *
7188  * Return codes
7189  *      0 - successful
7190  *      -ENOMEM - No available memory
7191  *      -EIO - The mailbox failed to complete successfully.
7192  **/
7193 int
7194 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7195 {
7196         struct lpfc_sli *psli = &phba->sli;
7197         struct lpfc_sli_ring *pring;
7198         int rc = -ENOMEM;
7199         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7200         int fcp_cq_index = 0;
7201         uint32_t shdr_status, shdr_add_status;
7202         union lpfc_sli4_cfg_shdr *shdr;
7203         LPFC_MBOXQ_t *mboxq;
7204         uint32_t length;
7205
7206         /* Check for dual-ULP support */
7207         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7208         if (!mboxq) {
7209                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7210                                 "3249 Unable to allocate memory for "
7211                                 "QUERY_FW_CFG mailbox command\n");
7212                 return -ENOMEM;
7213         }
7214         length = (sizeof(struct lpfc_mbx_query_fw_config) -
7215                   sizeof(struct lpfc_sli4_cfg_mhdr));
7216         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7217                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7218                          length, LPFC_SLI4_MBX_EMBED);
7219
7220         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7221
7222         shdr = (union lpfc_sli4_cfg_shdr *)
7223                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7224         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7225         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7226         if (shdr_status || shdr_add_status || rc) {
7227                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7228                                 "3250 QUERY_FW_CFG mailbox failed with status "
7229                                 "x%x add_status x%x, mbx status x%x\n",
7230                                 shdr_status, shdr_add_status, rc);
7231                 if (rc != MBX_TIMEOUT)
7232                         mempool_free(mboxq, phba->mbox_mem_pool);
7233                 rc = -ENXIO;
7234                 goto out_error;
7235         }
7236
7237         phba->sli4_hba.fw_func_mode =
7238                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7239         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7240         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7241         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7242                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7243                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7244                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7245
7246         if (rc != MBX_TIMEOUT)
7247                 mempool_free(mboxq, phba->mbox_mem_pool);
7248
7249         /*
7250          * Set up HBA Event Queues (EQs)
7251          */
7252
7253         /* Set up HBA event queue */
7254         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7255                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7256                                 "3147 Fast-path EQs not allocated\n");
7257                 rc = -ENOMEM;
7258                 goto out_error;
7259         }
7260         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7261                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7262                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7263                                         "0522 Fast-path EQ (%d) not "
7264                                         "allocated\n", fcp_eqidx);
7265                         rc = -ENOMEM;
7266                         goto out_destroy_hba_eq;
7267                 }
7268                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7269                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7270                 if (rc) {
7271                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7272                                         "0523 Failed setup of fast-path EQ "
7273                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
7274                         goto out_destroy_hba_eq;
7275                 }
7276                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7277                                 "2584 HBA EQ setup: "
7278                                 "queue[%d]-id=%d\n", fcp_eqidx,
7279                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7280         }
7281
7282         /* Set up fast-path FCP Response Complete Queue */
7283         if (!phba->sli4_hba.fcp_cq) {
7284                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7285                                 "3148 Fast-path FCP CQ array not "
7286                                 "allocated\n");
7287                 rc = -ENOMEM;
7288                 goto out_destroy_hba_eq;
7289         }
7290
7291         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7292                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7293                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7294                                         "0526 Fast-path FCP CQ (%d) not "
7295                                         "allocated\n", fcp_cqidx);
7296                         rc = -ENOMEM;
7297                         goto out_destroy_fcp_cq;
7298                 }
7299                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7300                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7301                 if (rc) {
7302                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7303                                         "0527 Failed setup of fast-path FCP "
7304                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
7305                         goto out_destroy_fcp_cq;
7306                 }
7307
7308                 /* Setup fcp_cq_map for fast lookup */
7309                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7310                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7311
7312                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7313                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7314                                 "parent seq[%d]-id=%d\n",
7315                                 fcp_cqidx,
7316                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7317                                 fcp_cqidx,
7318                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7319         }
7320
7321         /* Set up fast-path FCP Work Queue */
7322         if (!phba->sli4_hba.fcp_wq) {
7323                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7324                                 "3149 Fast-path FCP WQ array not "
7325                                 "allocated\n");
7326                 rc = -ENOMEM;
7327                 goto out_destroy_fcp_cq;
7328         }
7329
7330         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7331                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7332                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7333                                         "0534 Fast-path FCP WQ (%d) not "
7334                                         "allocated\n", fcp_wqidx);
7335                         rc = -ENOMEM;
7336                         goto out_destroy_fcp_wq;
7337                 }
7338                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7339                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7340                                     LPFC_FCP);
7341                 if (rc) {
7342                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7343                                         "0535 Failed setup of fast-path FCP "
7344                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7345                         goto out_destroy_fcp_wq;
7346                 }
7347
7348                 /* Bind this WQ to the next FCP ring */
7349                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7350                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7351                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7352
7353                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7354                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7355                                 "parent cq[%d]-id=%d\n",
7356                                 fcp_wqidx,
7357                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7358                                 fcp_cq_index,
7359                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7360         }
7361         /*
7362          * Set up Complete Queues (CQs)
7363          */
7364
7365         /* Set up slow-path MBOX Complete Queue as the first CQ */
7366         if (!phba->sli4_hba.mbx_cq) {
7367                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7368                                 "0528 Mailbox CQ not allocated\n");
7369                 rc = -ENOMEM;
7370                 goto out_destroy_fcp_wq;
7371         }
7372         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7373                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7374         if (rc) {
7375                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7376                                 "0529 Failed setup of slow-path mailbox CQ: "
7377                                 "rc = 0x%x\n", rc);
7378                 goto out_destroy_fcp_wq;
7379         }
7380         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7381                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7382                         phba->sli4_hba.mbx_cq->queue_id,
7383                         phba->sli4_hba.hba_eq[0]->queue_id);
7384
7385         /* Set up slow-path ELS Complete Queue */
7386         if (!phba->sli4_hba.els_cq) {
7387                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7388                                 "0530 ELS CQ not allocated\n");
7389                 rc = -ENOMEM;
7390                 goto out_destroy_mbx_cq;
7391         }
7392         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7393                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7394         if (rc) {
7395                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7396                                 "0531 Failed setup of slow-path ELS CQ: "
7397                                 "rc = 0x%x\n", rc);
7398                 goto out_destroy_mbx_cq;
7399         }
7400         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7401                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7402                         phba->sli4_hba.els_cq->queue_id,
7403                         phba->sli4_hba.hba_eq[0]->queue_id);
7404
7405         /*
7406          * Set up all the Work Queues (WQs)
7407          */
7408
7409         /* Set up Mailbox Command Queue */
7410         if (!phba->sli4_hba.mbx_wq) {
7411                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7412                                 "0538 Slow-path MQ not allocated\n");
7413                 rc = -ENOMEM;
7414                 goto out_destroy_els_cq;
7415         }
7416         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7417                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7418         if (rc) {
7419                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7420                                 "0539 Failed setup of slow-path MQ: "
7421                                 "rc = 0x%x\n", rc);
7422                 goto out_destroy_els_cq;
7423         }
7424         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7425                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7426                         phba->sli4_hba.mbx_wq->queue_id,
7427                         phba->sli4_hba.mbx_cq->queue_id);
7428
7429         /* Set up slow-path ELS Work Queue */
7430         if (!phba->sli4_hba.els_wq) {
7431                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7432                                 "0536 Slow-path ELS WQ not allocated\n");
7433                 rc = -ENOMEM;
7434                 goto out_destroy_mbx_wq;
7435         }
7436         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7437                             phba->sli4_hba.els_cq, LPFC_ELS);
7438         if (rc) {
7439                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7440                                 "0537 Failed setup of slow-path ELS WQ: "
7441                                 "rc = 0x%x\n", rc);
7442                 goto out_destroy_mbx_wq;
7443         }
7444
7445         /* Bind this WQ to the ELS ring */
7446         pring = &psli->ring[LPFC_ELS_RING];
7447         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7448         phba->sli4_hba.els_cq->pring = pring;
7449
7450         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7451                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7452                         phba->sli4_hba.els_wq->queue_id,
7453                         phba->sli4_hba.els_cq->queue_id);
7454
7455         /*
7456          * Create Receive Queue (RQ)
7457          */
7458         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7459                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7460                                 "0540 Receive Queue not allocated\n");
7461                 rc = -ENOMEM;
7462                 goto out_destroy_els_wq;
7463         }
7464
7465         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7466         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7467
7468         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7469                             phba->sli4_hba.els_cq, LPFC_USOL);
7470         if (rc) {
7471                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7472                                 "0541 Failed setup of Receive Queue: "
7473                                 "rc = 0x%x\n", rc);
7474                 goto out_destroy_fcp_wq;
7475         }
7476
7477         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7478                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7479                         "parent cq-id=%d\n",
7480                         phba->sli4_hba.hdr_rq->queue_id,
7481                         phba->sli4_hba.dat_rq->queue_id,
7482                         phba->sli4_hba.els_cq->queue_id);
7483         return 0;
7484
7485 out_destroy_els_wq:
7486         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7487 out_destroy_mbx_wq:
7488         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7489 out_destroy_els_cq:
7490         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7491 out_destroy_mbx_cq:
7492         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7493 out_destroy_fcp_wq:
7494         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7495                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7496 out_destroy_fcp_cq:
7497         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7498                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7499 out_destroy_hba_eq:
7500         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7501                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7502 out_error:
7503         return rc;
7504 }
7505
7506 /**
7507  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7508  * @phba: pointer to lpfc hba data structure.
7509  *
7510  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7511  * operation.
7512  *
7513  * Return codes
7514  *      0 - successful
7515  *      -ENOMEM - No available memory
7516  *      -EIO - The mailbox failed to complete successfully.
7517  **/
7518 void
7519 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7520 {
7521         int fcp_qidx;
7522
7523         /* Unset mailbox command work queue */
7524         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7525         /* Unset ELS work queue */
7526         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7527         /* Unset unsolicited receive queue */
7528         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7529         /* Unset FCP work queue */
7530         if (phba->sli4_hba.fcp_wq) {
7531                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7532                      fcp_qidx++)
7533                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7534         }
7535         /* Unset mailbox command complete queue */
7536         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7537         /* Unset ELS complete queue */
7538         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7539         /* Unset FCP response complete queue */
7540         if (phba->sli4_hba.fcp_cq) {
7541                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7542                      fcp_qidx++)
7543                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7544         }
7545         /* Unset fast-path event queue */
7546         if (phba->sli4_hba.hba_eq) {
7547                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7548                      fcp_qidx++)
7549                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7550         }
7551 }
7552
7553 /**
7554  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7555  * @phba: pointer to lpfc hba data structure.
7556  *
7557  * This routine is invoked to allocate and set up a pool of completion queue
7558  * events. The body of the completion queue event is a completion queue entry
7559  * CQE. For now, this pool is used for the interrupt service routine to queue
7560  * the following HBA completion queue events for the worker thread to process:
7561  *   - Mailbox asynchronous events
7562  *   - Receive queue completion unsolicited events
7563  * Later, this can be used for all the slow-path events.
7564  *
7565  * Return codes
7566  *      0 - successful
7567  *      -ENOMEM - No available memory
7568  **/
7569 static int
7570 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7571 {
7572         struct lpfc_cq_event *cq_event;
7573         int i;
7574
7575         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7576                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7577                 if (!cq_event)
7578                         goto out_pool_create_fail;
7579                 list_add_tail(&cq_event->list,
7580                               &phba->sli4_hba.sp_cqe_event_pool);
7581         }
7582         return 0;
7583
7584 out_pool_create_fail:
7585         lpfc_sli4_cq_event_pool_destroy(phba);
7586         return -ENOMEM;
7587 }
7588
7589 /**
7590  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7591  * @phba: pointer to lpfc hba data structure.
7592  *
7593  * This routine is invoked to free the pool of completion queue events at
7594  * driver unload time. Note that, it is the responsibility of the driver
7595  * cleanup routine to free all the outstanding completion-queue events
7596  * allocated from this pool back into the pool before invoking this routine
7597  * to destroy the pool.
7598  **/
7599 static void
7600 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7601 {
7602         struct lpfc_cq_event *cq_event, *next_cq_event;
7603
7604         list_for_each_entry_safe(cq_event, next_cq_event,
7605                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7606                 list_del(&cq_event->list);
7607                 kfree(cq_event);
7608         }
7609 }
7610
7611 /**
7612  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7613  * @phba: pointer to lpfc hba data structure.
7614  *
7615  * This routine is the lock free version of the API invoked to allocate a
7616  * completion-queue event from the free pool.
7617  *
7618  * Return: Pointer to the newly allocated completion-queue event if successful
7619  *         NULL otherwise.
7620  **/
7621 struct lpfc_cq_event *
7622 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7623 {
7624         struct lpfc_cq_event *cq_event = NULL;
7625
7626         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7627                          struct lpfc_cq_event, list);
7628         return cq_event;
7629 }
7630
7631 /**
7632  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7633  * @phba: pointer to lpfc hba data structure.
7634  *
7635  * This routine is the lock version of the API invoked to allocate a
7636  * completion-queue event from the free pool.
7637  *
7638  * Return: Pointer to the newly allocated completion-queue event if successful
7639  *         NULL otherwise.
7640  **/
7641 struct lpfc_cq_event *
7642 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7643 {
7644         struct lpfc_cq_event *cq_event;
7645         unsigned long iflags;
7646
7647         spin_lock_irqsave(&phba->hbalock, iflags);
7648         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7649         spin_unlock_irqrestore(&phba->hbalock, iflags);
7650         return cq_event;
7651 }
7652
7653 /**
7654  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7655  * @phba: pointer to lpfc hba data structure.
7656  * @cq_event: pointer to the completion queue event to be freed.
7657  *
7658  * This routine is the lock free version of the API invoked to release a
7659  * completion-queue event back into the free pool.
7660  **/
7661 void
7662 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7663                              struct lpfc_cq_event *cq_event)
7664 {
7665         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7666 }
7667
7668 /**
7669  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7670  * @phba: pointer to lpfc hba data structure.
7671  * @cq_event: pointer to the completion queue event to be freed.
7672  *
7673  * This routine is the lock version of the API invoked to release a
7674  * completion-queue event back into the free pool.
7675  **/
7676 void
7677 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7678                            struct lpfc_cq_event *cq_event)
7679 {
7680         unsigned long iflags;
7681         spin_lock_irqsave(&phba->hbalock, iflags);
7682         __lpfc_sli4_cq_event_release(phba, cq_event);
7683         spin_unlock_irqrestore(&phba->hbalock, iflags);
7684 }
7685
7686 /**
7687  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7688  * @phba: pointer to lpfc hba data structure.
7689  *
7690  * This routine is to free all the pending completion-queue events to the
7691  * back into the free pool for device reset.
7692  **/
7693 static void
7694 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7695 {
7696         LIST_HEAD(cqelist);
7697         struct lpfc_cq_event *cqe;
7698         unsigned long iflags;
7699
7700         /* Retrieve all the pending WCQEs from pending WCQE lists */
7701         spin_lock_irqsave(&phba->hbalock, iflags);
7702         /* Pending FCP XRI abort events */
7703         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7704                          &cqelist);
7705         /* Pending ELS XRI abort events */
7706         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7707                          &cqelist);
7708         /* Pending asynnc events */
7709         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7710                          &cqelist);
7711         spin_unlock_irqrestore(&phba->hbalock, iflags);
7712
7713         while (!list_empty(&cqelist)) {
7714                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7715                 lpfc_sli4_cq_event_release(phba, cqe);
7716         }
7717 }
7718
7719 /**
7720  * lpfc_pci_function_reset - Reset pci function.
7721  * @phba: pointer to lpfc hba data structure.
7722  *
7723  * This routine is invoked to request a PCI function reset. It will destroys
7724  * all resources assigned to the PCI function which originates this request.
7725  *
7726  * Return codes
7727  *      0 - successful
7728  *      -ENOMEM - No available memory
7729  *      -EIO - The mailbox failed to complete successfully.
7730  **/
7731 int
7732 lpfc_pci_function_reset(struct lpfc_hba *phba)
7733 {
7734         LPFC_MBOXQ_t *mboxq;
7735         uint32_t rc = 0, if_type;
7736         uint32_t shdr_status, shdr_add_status;
7737         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7738         union lpfc_sli4_cfg_shdr *shdr;
7739         struct lpfc_register reg_data;
7740         uint16_t devid;
7741
7742         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7743         switch (if_type) {
7744         case LPFC_SLI_INTF_IF_TYPE_0:
7745                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7746                                                        GFP_KERNEL);
7747                 if (!mboxq) {
7748                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7749                                         "0494 Unable to allocate memory for "
7750                                         "issuing SLI_FUNCTION_RESET mailbox "
7751                                         "command\n");
7752                         return -ENOMEM;
7753                 }
7754
7755                 /* Setup PCI function reset mailbox-ioctl command */
7756                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7757                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7758                                  LPFC_SLI4_MBX_EMBED);
7759                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7760                 shdr = (union lpfc_sli4_cfg_shdr *)
7761                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7762                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7763                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7764                                          &shdr->response);
7765                 if (rc != MBX_TIMEOUT)
7766                         mempool_free(mboxq, phba->mbox_mem_pool);
7767                 if (shdr_status || shdr_add_status || rc) {
7768                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7769                                         "0495 SLI_FUNCTION_RESET mailbox "
7770                                         "failed with status x%x add_status x%x,"
7771                                         " mbx status x%x\n",
7772                                         shdr_status, shdr_add_status, rc);
7773                         rc = -ENXIO;
7774                 }
7775                 break;
7776         case LPFC_SLI_INTF_IF_TYPE_2:
7777                 for (num_resets = 0;
7778                      num_resets < MAX_IF_TYPE_2_RESETS;
7779                      num_resets++) {
7780                         reg_data.word0 = 0;
7781                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
7782                                LPFC_SLIPORT_LITTLE_ENDIAN);
7783                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7784                                LPFC_SLIPORT_INIT_PORT);
7785                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7786                                CTRLregaddr);
7787                         /* flush */
7788                         pci_read_config_word(phba->pcidev,
7789                                              PCI_DEVICE_ID, &devid);
7790                         /*
7791                          * Poll the Port Status Register and wait for RDY for
7792                          * up to 10 seconds.  If the port doesn't respond, treat
7793                          * it as an error.  If the port responds with RN, start
7794                          * the loop again.
7795                          */
7796                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7797                                 msleep(10);
7798                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7799                                               STATUSregaddr, &reg_data.word0)) {
7800                                         rc = -ENODEV;
7801                                         goto out;
7802                                 }
7803                                 if (bf_get(lpfc_sliport_status_rn, &reg_data))
7804                                         reset_again++;
7805                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7806                                         break;
7807                         }
7808
7809                         /*
7810                          * If the port responds to the init request with
7811                          * reset needed, delay for a bit and restart the loop.
7812                          */
7813                         if (reset_again && (rdy_chk < 1000)) {
7814                                 msleep(10);
7815                                 reset_again = 0;
7816                                 continue;
7817                         }
7818
7819                         /* Detect any port errors. */
7820                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7821                             (rdy_chk >= 1000)) {
7822                                 phba->work_status[0] = readl(
7823                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
7824                                 phba->work_status[1] = readl(
7825                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
7826                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7827                                         "2890 Port error detected during port "
7828                                         "reset(%d): wait_tmo:%d ms, "
7829                                         "port status reg 0x%x, "
7830                                         "error 1=0x%x, error 2=0x%x\n",
7831                                         num_resets, rdy_chk*10,
7832                                         reg_data.word0,
7833                                         phba->work_status[0],
7834                                         phba->work_status[1]);
7835                                 rc = -ENODEV;
7836                         }
7837
7838                         /*
7839                          * Terminate the outer loop provided the Port indicated
7840                          * ready within 10 seconds.
7841                          */
7842                         if (rdy_chk < 1000)
7843                                 break;
7844                 }
7845                 /* delay driver action following IF_TYPE_2 function reset */
7846                 msleep(100);
7847                 break;
7848         case LPFC_SLI_INTF_IF_TYPE_1:
7849         default:
7850                 break;
7851         }
7852
7853 out:
7854         /* Catch the not-ready port failure after a port reset. */
7855         if (num_resets >= MAX_IF_TYPE_2_RESETS) {
7856                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7857                                 "3317 HBA not functional: IP Reset Failed "
7858                                 "after (%d) retries, try: "
7859                                 "echo fw_reset > board_mode\n", num_resets);
7860                 rc = -ENODEV;
7861         }
7862
7863         return rc;
7864 }
7865
7866 /**
7867  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7868  * @phba: pointer to lpfc hba data structure.
7869  *
7870  * This routine is invoked to set up the PCI device memory space for device
7871  * with SLI-4 interface spec.
7872  *
7873  * Return codes
7874  *      0 - successful
7875  *      other values - error
7876  **/
7877 static int
7878 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7879 {
7880         struct pci_dev *pdev;
7881         unsigned long bar0map_len, bar1map_len, bar2map_len;
7882         int error = -ENODEV;
7883         uint32_t if_type;
7884
7885         /* Obtain PCI device reference */
7886         if (!phba->pcidev)
7887                 return error;
7888         else
7889                 pdev = phba->pcidev;
7890
7891         /* Set the device DMA mask size */
7892         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7893          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7894                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7895                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7896                         return error;
7897                 }
7898         }
7899
7900         /*
7901          * The BARs and register set definitions and offset locations are
7902          * dependent on the if_type.
7903          */
7904         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7905                                   &phba->sli4_hba.sli_intf.word0)) {
7906                 return error;
7907         }
7908
7909         /* There is no SLI3 failback for SLI4 devices. */
7910         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7911             LPFC_SLI_INTF_VALID) {
7912                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7913                                 "2894 SLI_INTF reg contents invalid "
7914                                 "sli_intf reg 0x%x\n",
7915                                 phba->sli4_hba.sli_intf.word0);
7916                 return error;
7917         }
7918
7919         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7920         /*
7921          * Get the bus address of SLI4 device Bar regions and the
7922          * number of bytes required by each mapping. The mapping of the
7923          * particular PCI BARs regions is dependent on the type of
7924          * SLI4 device.
7925          */
7926         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
7927                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
7928                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
7929
7930                 /*
7931                  * Map SLI4 PCI Config Space Register base to a kernel virtual
7932                  * addr
7933                  */
7934                 phba->sli4_hba.conf_regs_memmap_p =
7935                         ioremap(phba->pci_bar0_map, bar0map_len);
7936                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7937                         dev_printk(KERN_ERR, &pdev->dev,
7938                                    "ioremap failed for SLI4 PCI config "
7939                                    "registers.\n");
7940                         goto out;
7941                 }
7942                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
7943                 /* Set up BAR0 PCI config space register memory map */
7944                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7945         } else {
7946                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7947                 bar0map_len = pci_resource_len(pdev, 1);
7948                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7949                         dev_printk(KERN_ERR, &pdev->dev,
7950                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7951                         goto out;
7952                 }
7953                 phba->sli4_hba.conf_regs_memmap_p =
7954                                 ioremap(phba->pci_bar0_map, bar0map_len);
7955                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7956                         dev_printk(KERN_ERR, &pdev->dev,
7957                                 "ioremap failed for SLI4 PCI config "
7958                                 "registers.\n");
7959                                 goto out;
7960                 }
7961                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7962         }
7963
7964         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7965             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
7966                 /*
7967                  * Map SLI4 if type 0 HBA Control Register base to a kernel
7968                  * virtual address and setup the registers.
7969                  */
7970                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
7971                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
7972                 phba->sli4_hba.ctrl_regs_memmap_p =
7973                                 ioremap(phba->pci_bar1_map, bar1map_len);
7974                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7975                         dev_printk(KERN_ERR, &pdev->dev,
7976                            "ioremap failed for SLI4 HBA control registers.\n");
7977                         goto out_iounmap_conf;
7978                 }
7979                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
7980                 lpfc_sli4_bar1_register_memmap(phba);
7981         }
7982
7983         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7984             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
7985                 /*
7986                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7987                  * virtual address and setup the registers.
7988                  */
7989                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
7990                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
7991                 phba->sli4_hba.drbl_regs_memmap_p =
7992                                 ioremap(phba->pci_bar2_map, bar2map_len);
7993                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7994                         dev_printk(KERN_ERR, &pdev->dev,
7995                            "ioremap failed for SLI4 HBA doorbell registers.\n");
7996                         goto out_iounmap_ctrl;
7997                 }
7998                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
7999                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8000                 if (error)
8001                         goto out_iounmap_all;
8002         }
8003
8004         return 0;
8005
8006 out_iounmap_all:
8007         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8008 out_iounmap_ctrl:
8009         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8010 out_iounmap_conf:
8011         iounmap(phba->sli4_hba.conf_regs_memmap_p);
8012 out:
8013         return error;
8014 }
8015
8016 /**
8017  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8018  * @phba: pointer to lpfc hba data structure.
8019  *
8020  * This routine is invoked to unset the PCI device memory space for device
8021  * with SLI-4 interface spec.
8022  **/
8023 static void
8024 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8025 {
8026         uint32_t if_type;
8027         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8028
8029         switch (if_type) {
8030         case LPFC_SLI_INTF_IF_TYPE_0:
8031                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8032                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8033                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8034                 break;
8035         case LPFC_SLI_INTF_IF_TYPE_2:
8036                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8037                 break;
8038         case LPFC_SLI_INTF_IF_TYPE_1:
8039         default:
8040                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8041                            "FATAL - unsupported SLI4 interface type - %d\n",
8042                            if_type);
8043                 break;
8044         }
8045 }
8046
8047 /**
8048  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8049  * @phba: pointer to lpfc hba data structure.
8050  *
8051  * This routine is invoked to enable the MSI-X interrupt vectors to device
8052  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
8053  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
8054  * invoked, enables either all or nothing, depending on the current
8055  * availability of PCI vector resources. The device driver is responsible
8056  * for calling the individual request_irq() to register each MSI-X vector
8057  * with a interrupt handler, which is done in this function. Note that
8058  * later when device is unloading, the driver should always call free_irq()
8059  * on all MSI-X vectors it has done request_irq() on before calling
8060  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8061  * will be left with MSI-X enabled and leaks its vectors.
8062  *
8063  * Return codes
8064  *   0 - successful
8065  *   other values - error
8066  **/
8067 static int
8068 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8069 {
8070         int rc, i;
8071         LPFC_MBOXQ_t *pmb;
8072
8073         /* Set up MSI-X multi-message vectors */
8074         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8075                 phba->msix_entries[i].entry = i;
8076
8077         /* Configure MSI-X capability structure */
8078         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
8079                                 ARRAY_SIZE(phba->msix_entries));
8080         if (rc) {
8081                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8082                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
8083                 goto msi_fail_out;
8084         }
8085         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8086                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8087                                 "0477 MSI-X entry[%d]: vector=x%x "
8088                                 "message=%d\n", i,
8089                                 phba->msix_entries[i].vector,
8090                                 phba->msix_entries[i].entry);
8091         /*
8092          * Assign MSI-X vectors to interrupt handlers
8093          */
8094
8095         /* vector-0 is associated to slow-path handler */
8096         rc = request_irq(phba->msix_entries[0].vector,
8097                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
8098                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
8099         if (rc) {
8100                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8101                                 "0421 MSI-X slow-path request_irq failed "
8102                                 "(%d)\n", rc);
8103                 goto msi_fail_out;
8104         }
8105
8106         /* vector-1 is associated to fast-path handler */
8107         rc = request_irq(phba->msix_entries[1].vector,
8108                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
8109                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
8110
8111         if (rc) {
8112                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8113                                 "0429 MSI-X fast-path request_irq failed "
8114                                 "(%d)\n", rc);
8115                 goto irq_fail_out;
8116         }
8117
8118         /*
8119          * Configure HBA MSI-X attention conditions to messages
8120          */
8121         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8122
8123         if (!pmb) {
8124                 rc = -ENOMEM;
8125                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8126                                 "0474 Unable to allocate memory for issuing "
8127                                 "MBOX_CONFIG_MSI command\n");
8128                 goto mem_fail_out;
8129         }
8130         rc = lpfc_config_msi(phba, pmb);
8131         if (rc)
8132                 goto mbx_fail_out;
8133         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8134         if (rc != MBX_SUCCESS) {
8135                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8136                                 "0351 Config MSI mailbox command failed, "
8137                                 "mbxCmd x%x, mbxStatus x%x\n",
8138                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8139                 goto mbx_fail_out;
8140         }
8141
8142         /* Free memory allocated for mailbox command */
8143         mempool_free(pmb, phba->mbox_mem_pool);
8144         return rc;
8145
8146 mbx_fail_out:
8147         /* Free memory allocated for mailbox command */
8148         mempool_free(pmb, phba->mbox_mem_pool);
8149
8150 mem_fail_out:
8151         /* free the irq already requested */
8152         free_irq(phba->msix_entries[1].vector, phba);
8153
8154 irq_fail_out:
8155         /* free the irq already requested */
8156         free_irq(phba->msix_entries[0].vector, phba);
8157
8158 msi_fail_out:
8159         /* Unconfigure MSI-X capability structure */
8160         pci_disable_msix(phba->pcidev);
8161         return rc;
8162 }
8163
8164 /**
8165  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8166  * @phba: pointer to lpfc hba data structure.
8167  *
8168  * This routine is invoked to release the MSI-X vectors and then disable the
8169  * MSI-X interrupt mode to device with SLI-3 interface spec.
8170  **/
8171 static void
8172 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8173 {
8174         int i;
8175
8176         /* Free up MSI-X multi-message vectors */
8177         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8178                 free_irq(phba->msix_entries[i].vector, phba);
8179         /* Disable MSI-X */
8180         pci_disable_msix(phba->pcidev);
8181
8182         return;
8183 }
8184
8185 /**
8186  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8187  * @phba: pointer to lpfc hba data structure.
8188  *
8189  * This routine is invoked to enable the MSI interrupt mode to device with
8190  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8191  * enable the MSI vector. The device driver is responsible for calling the
8192  * request_irq() to register MSI vector with a interrupt the handler, which
8193  * is done in this function.
8194  *
8195  * Return codes
8196  *      0 - successful
8197  *      other values - error
8198  */
8199 static int
8200 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8201 {
8202         int rc;
8203
8204         rc = pci_enable_msi(phba->pcidev);
8205         if (!rc)
8206                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8207                                 "0462 PCI enable MSI mode success.\n");
8208         else {
8209                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8210                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8211                 return rc;
8212         }
8213
8214         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8215                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8216         if (rc) {
8217                 pci_disable_msi(phba->pcidev);
8218                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8219                                 "0478 MSI request_irq failed (%d)\n", rc);
8220         }
8221         return rc;
8222 }
8223
8224 /**
8225  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8226  * @phba: pointer to lpfc hba data structure.
8227  *
8228  * This routine is invoked to disable the MSI interrupt mode to device with
8229  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8230  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8231  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8232  * its vector.
8233  */
8234 static void
8235 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8236 {
8237         free_irq(phba->pcidev->irq, phba);
8238         pci_disable_msi(phba->pcidev);
8239         return;
8240 }
8241
8242 /**
8243  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8244  * @phba: pointer to lpfc hba data structure.
8245  *
8246  * This routine is invoked to enable device interrupt and associate driver's
8247  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8248  * spec. Depends on the interrupt mode configured to the driver, the driver
8249  * will try to fallback from the configured interrupt mode to an interrupt
8250  * mode which is supported by the platform, kernel, and device in the order
8251  * of:
8252  * MSI-X -> MSI -> IRQ.
8253  *
8254  * Return codes
8255  *   0 - successful
8256  *   other values - error
8257  **/
8258 static uint32_t
8259 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8260 {
8261         uint32_t intr_mode = LPFC_INTR_ERROR;
8262         int retval;
8263
8264         if (cfg_mode == 2) {
8265                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8266                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8267                 if (!retval) {
8268                         /* Now, try to enable MSI-X interrupt mode */
8269                         retval = lpfc_sli_enable_msix(phba);
8270                         if (!retval) {
8271                                 /* Indicate initialization to MSI-X mode */
8272                                 phba->intr_type = MSIX;
8273                                 intr_mode = 2;
8274                         }
8275                 }
8276         }
8277
8278         /* Fallback to MSI if MSI-X initialization failed */
8279         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8280                 retval = lpfc_sli_enable_msi(phba);
8281                 if (!retval) {
8282                         /* Indicate initialization to MSI mode */
8283                         phba->intr_type = MSI;
8284                         intr_mode = 1;
8285                 }
8286         }
8287
8288         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8289         if (phba->intr_type == NONE) {
8290                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8291                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8292                 if (!retval) {
8293                         /* Indicate initialization to INTx mode */
8294                         phba->intr_type = INTx;
8295                         intr_mode = 0;
8296                 }
8297         }
8298         return intr_mode;
8299 }
8300
8301 /**
8302  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8303  * @phba: pointer to lpfc hba data structure.
8304  *
8305  * This routine is invoked to disable device interrupt and disassociate the
8306  * driver's interrupt handler(s) from interrupt vector(s) to device with
8307  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8308  * release the interrupt vector(s) for the message signaled interrupt.
8309  **/
8310 static void
8311 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8312 {
8313         /* Disable the currently initialized interrupt mode */
8314         if (phba->intr_type == MSIX)
8315                 lpfc_sli_disable_msix(phba);
8316         else if (phba->intr_type == MSI)
8317                 lpfc_sli_disable_msi(phba);
8318         else if (phba->intr_type == INTx)
8319                 free_irq(phba->pcidev->irq, phba);
8320
8321         /* Reset interrupt management states */
8322         phba->intr_type = NONE;
8323         phba->sli.slistat.sli_intr = 0;
8324
8325         return;
8326 }
8327
8328 /**
8329  * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8330  * @phba: pointer to lpfc hba data structure.
8331  *
8332  * Find next available CPU to use for IRQ to CPU affinity.
8333  */
8334 static int
8335 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8336 {
8337         struct lpfc_vector_map_info *cpup;
8338         int cpu;
8339
8340         cpup = phba->sli4_hba.cpu_map;
8341         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8342                 /* CPU must be online */
8343                 if (cpu_online(cpu)) {
8344                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8345                             (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8346                             (cpup->phys_id == phys_id)) {
8347                                 return cpu;
8348                         }
8349                 }
8350                 cpup++;
8351         }
8352
8353         /*
8354          * If we get here, we have used ALL CPUs for the specific
8355          * phys_id. Now we need to clear out lpfc_used_cpu and start
8356          * reusing CPUs.
8357          */
8358
8359         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8360                 if (lpfc_used_cpu[cpu] == phys_id)
8361                         lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8362         }
8363
8364         cpup = phba->sli4_hba.cpu_map;
8365         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8366                 /* CPU must be online */
8367                 if (cpu_online(cpu)) {
8368                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8369                             (cpup->phys_id == phys_id)) {
8370                                 return cpu;
8371                         }
8372                 }
8373                 cpup++;
8374         }
8375         return LPFC_VECTOR_MAP_EMPTY;
8376 }
8377
8378 /**
8379  * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8380  * @phba:       pointer to lpfc hba data structure.
8381  * @vectors:    number of HBA vectors
8382  *
8383  * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8384  * affinization across multple physical CPUs (numa nodes).
8385  * In addition, this routine will assign an IO channel for each CPU
8386  * to use when issuing I/Os.
8387  */
8388 static int
8389 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8390 {
8391         int i, idx, saved_chann, used_chann, cpu, phys_id;
8392         int max_phys_id, min_phys_id;
8393         int num_io_channel, first_cpu, chan;
8394         struct lpfc_vector_map_info *cpup;
8395 #ifdef CONFIG_X86
8396         struct cpuinfo_x86 *cpuinfo;
8397 #endif
8398         struct cpumask *mask;
8399         uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8400
8401         /* If there is no mapping, just return */
8402         if (!phba->cfg_fcp_cpu_map)
8403                 return 1;
8404
8405         /* Init cpu_map array */
8406         memset(phba->sli4_hba.cpu_map, 0xff,
8407                (sizeof(struct lpfc_vector_map_info) *
8408                 phba->sli4_hba.num_present_cpu));
8409
8410         max_phys_id = 0;
8411         min_phys_id = 0xff;
8412         phys_id = 0;
8413         num_io_channel = 0;
8414         first_cpu = LPFC_VECTOR_MAP_EMPTY;
8415
8416         /* Update CPU map with physical id and core id of each CPU */
8417         cpup = phba->sli4_hba.cpu_map;
8418         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8419 #ifdef CONFIG_X86
8420                 cpuinfo = &cpu_data(cpu);
8421                 cpup->phys_id = cpuinfo->phys_proc_id;
8422                 cpup->core_id = cpuinfo->cpu_core_id;
8423 #else
8424                 /* No distinction between CPUs for other platforms */
8425                 cpup->phys_id = 0;
8426                 cpup->core_id = 0;
8427 #endif
8428
8429                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8430                                 "3328 CPU physid %d coreid %d\n",
8431                                 cpup->phys_id, cpup->core_id);
8432
8433                 if (cpup->phys_id > max_phys_id)
8434                         max_phys_id = cpup->phys_id;
8435                 if (cpup->phys_id < min_phys_id)
8436                         min_phys_id = cpup->phys_id;
8437                 cpup++;
8438         }
8439
8440         phys_id = min_phys_id;
8441         /* Now associate the HBA vectors with specific CPUs */
8442         for (idx = 0; idx < vectors; idx++) {
8443                 cpup = phba->sli4_hba.cpu_map;
8444                 cpu = lpfc_find_next_cpu(phba, phys_id);
8445                 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8446
8447                         /* Try for all phys_id's */
8448                         for (i = 1; i < max_phys_id; i++) {
8449                                 phys_id++;
8450                                 if (phys_id > max_phys_id)
8451                                         phys_id = min_phys_id;
8452                                 cpu = lpfc_find_next_cpu(phba, phys_id);
8453                                 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8454                                         continue;
8455                                 goto found;
8456                         }
8457
8458                         /* Use round robin for scheduling */
8459                         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8460                         chan = 0;
8461                         cpup = phba->sli4_hba.cpu_map;
8462                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8463                                 cpup->channel_id = chan;
8464                                 cpup++;
8465                                 chan++;
8466                                 if (chan >= phba->cfg_fcp_io_channel)
8467                                         chan = 0;
8468                         }
8469
8470                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8471                                         "3329 Cannot set affinity:"
8472                                         "Error mapping vector %d (%d)\n",
8473                                         idx, vectors);
8474                         return 0;
8475                 }
8476 found:
8477                 cpup += cpu;
8478                 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8479                         lpfc_used_cpu[cpu] = phys_id;
8480
8481                 /* Associate vector with selected CPU */
8482                 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8483
8484                 /* Associate IO channel with selected CPU */
8485                 cpup->channel_id = idx;
8486                 num_io_channel++;
8487
8488                 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8489                         first_cpu = cpu;
8490
8491                 /* Now affinitize to the selected CPU */
8492                 mask = &cpup->maskbits;
8493                 cpumask_clear(mask);
8494                 cpumask_set_cpu(cpu, mask);
8495                 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8496                                           vector, mask);
8497
8498                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8499                                 "3330 Set Affinity: CPU %d channel %d "
8500                                 "irq %d (%x)\n",
8501                                 cpu, cpup->channel_id,
8502                                 phba->sli4_hba.msix_entries[idx].vector, i);
8503
8504                 /* Spread vector mapping across multple physical CPU nodes */
8505                 phys_id++;
8506                 if (phys_id > max_phys_id)
8507                         phys_id = min_phys_id;
8508         }
8509
8510         /*
8511          * Finally fill in the IO channel for any remaining CPUs.
8512          * At this point, all IO channels have been assigned to a specific
8513          * MSIx vector, mapped to a specific CPU.
8514          * Base the remaining IO channel assigned, to IO channels already
8515          * assigned to other CPUs on the same phys_id.
8516          */
8517         for (i = min_phys_id; i <= max_phys_id; i++) {
8518                 /*
8519                  * If there are no io channels already mapped to
8520                  * this phys_id, just round robin thru the io_channels.
8521                  * Setup chann[] for round robin.
8522                  */
8523                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8524                         chann[idx] = idx;
8525
8526                 saved_chann = 0;
8527                 used_chann = 0;
8528
8529                 /*
8530                  * First build a list of IO channels already assigned
8531                  * to this phys_id before reassigning the same IO
8532                  * channels to the remaining CPUs.
8533                  */
8534                 cpup = phba->sli4_hba.cpu_map;
8535                 cpu = first_cpu;
8536                 cpup += cpu;
8537                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8538                      idx++) {
8539                         if (cpup->phys_id == i) {
8540                                 /*
8541                                  * Save any IO channels that are
8542                                  * already mapped to this phys_id.
8543                                  */
8544                                 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8545                                         chann[saved_chann] =
8546                                                 cpup->channel_id;
8547                                         saved_chann++;
8548                                         goto out;
8549                                 }
8550
8551                                 /* See if we are using round-robin */
8552                                 if (saved_chann == 0)
8553                                         saved_chann =
8554                                                 phba->cfg_fcp_io_channel;
8555
8556                                 /* Associate next IO channel with CPU */
8557                                 cpup->channel_id = chann[used_chann];
8558                                 num_io_channel++;
8559                                 used_chann++;
8560                                 if (used_chann == saved_chann)
8561                                         used_chann = 0;
8562
8563                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8564                                                 "3331 Set IO_CHANN "
8565                                                 "CPU %d channel %d\n",
8566                                                 idx, cpup->channel_id);
8567                         }
8568 out:
8569                         cpu++;
8570                         if (cpu >= phba->sli4_hba.num_present_cpu) {
8571                                 cpup = phba->sli4_hba.cpu_map;
8572                                 cpu = 0;
8573                         } else {
8574                                 cpup++;
8575                         }
8576                 }
8577         }
8578
8579         if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8580                 cpup = phba->sli4_hba.cpu_map;
8581                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8582                         if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8583                                 cpup->channel_id = 0;
8584                                 num_io_channel++;
8585
8586                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8587                                                 "3332 Assign IO_CHANN "
8588                                                 "CPU %d channel %d\n",
8589                                                 idx, cpup->channel_id);
8590                         }
8591                         cpup++;
8592                 }
8593         }
8594
8595         /* Sanity check */
8596         if (num_io_channel != phba->sli4_hba.num_present_cpu)
8597                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8598                                 "3333 Set affinity mismatch:"
8599                                 "%d chann != %d cpus: %d vectors\n",
8600                                 num_io_channel, phba->sli4_hba.num_present_cpu,
8601                                 vectors);
8602
8603         /* Enable using cpu affinity for scheduling */
8604         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8605         return 1;
8606 }
8607
8608
8609 /**
8610  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8611  * @phba: pointer to lpfc hba data structure.
8612  *
8613  * This routine is invoked to enable the MSI-X interrupt vectors to device
8614  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8615  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8616  * enables either all or nothing, depending on the current availability of
8617  * PCI vector resources. The device driver is responsible for calling the
8618  * individual request_irq() to register each MSI-X vector with a interrupt
8619  * handler, which is done in this function. Note that later when device is
8620  * unloading, the driver should always call free_irq() on all MSI-X vectors
8621  * it has done request_irq() on before calling pci_disable_msix(). Failure
8622  * to do so results in a BUG_ON() and a device will be left with MSI-X
8623  * enabled and leaks its vectors.
8624  *
8625  * Return codes
8626  * 0 - successful
8627  * other values - error
8628  **/
8629 static int
8630 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8631 {
8632         int vectors, rc, index;
8633
8634         /* Set up MSI-X multi-message vectors */
8635         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8636                 phba->sli4_hba.msix_entries[index].entry = index;
8637
8638         /* Configure MSI-X capability structure */
8639         vectors = phba->cfg_fcp_io_channel;
8640 enable_msix_vectors:
8641         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
8642                              vectors);
8643         if (rc > 1) {
8644                 vectors = rc;
8645                 goto enable_msix_vectors;
8646         } else if (rc) {
8647                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8648                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8649                 goto msi_fail_out;
8650         }
8651
8652         /* Log MSI-X vector assignment */
8653         for (index = 0; index < vectors; index++)
8654                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8655                                 "0489 MSI-X entry[%d]: vector=x%x "
8656                                 "message=%d\n", index,
8657                                 phba->sli4_hba.msix_entries[index].vector,
8658                                 phba->sli4_hba.msix_entries[index].entry);
8659
8660         /* Assign MSI-X vectors to interrupt handlers */
8661         for (index = 0; index < vectors; index++) {
8662                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8663                 sprintf((char *)&phba->sli4_hba.handler_name[index],
8664                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8665
8666                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8667                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8668                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8669                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
8670                                  &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8671                                  (char *)&phba->sli4_hba.handler_name[index],
8672                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8673                 if (rc) {
8674                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8675                                         "0486 MSI-X fast-path (%d) "
8676                                         "request_irq failed (%d)\n", index, rc);
8677                         goto cfg_fail_out;
8678                 }
8679         }
8680
8681         if (vectors != phba->cfg_fcp_io_channel) {
8682                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8683                                 "3238 Reducing IO channels to match number of "
8684                                 "MSI-X vectors, requested %d got %d\n",
8685                                 phba->cfg_fcp_io_channel, vectors);
8686                 phba->cfg_fcp_io_channel = vectors;
8687         }
8688
8689         lpfc_sli4_set_affinity(phba, vectors);
8690         return rc;
8691
8692 cfg_fail_out:
8693         /* free the irq already requested */
8694         for (--index; index >= 0; index--) {
8695                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8696                                           vector, NULL);
8697                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8698                          &phba->sli4_hba.fcp_eq_hdl[index]);
8699         }
8700
8701 msi_fail_out:
8702         /* Unconfigure MSI-X capability structure */
8703         pci_disable_msix(phba->pcidev);
8704         return rc;
8705 }
8706
8707 /**
8708  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8709  * @phba: pointer to lpfc hba data structure.
8710  *
8711  * This routine is invoked to release the MSI-X vectors and then disable the
8712  * MSI-X interrupt mode to device with SLI-4 interface spec.
8713  **/
8714 static void
8715 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8716 {
8717         int index;
8718
8719         /* Free up MSI-X multi-message vectors */
8720         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8721                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8722                                           vector, NULL);
8723                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8724                          &phba->sli4_hba.fcp_eq_hdl[index]);
8725         }
8726
8727         /* Disable MSI-X */
8728         pci_disable_msix(phba->pcidev);
8729
8730         return;
8731 }
8732
8733 /**
8734  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8735  * @phba: pointer to lpfc hba data structure.
8736  *
8737  * This routine is invoked to enable the MSI interrupt mode to device with
8738  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8739  * to enable the MSI vector. The device driver is responsible for calling
8740  * the request_irq() to register MSI vector with a interrupt the handler,
8741  * which is done in this function.
8742  *
8743  * Return codes
8744  *      0 - successful
8745  *      other values - error
8746  **/
8747 static int
8748 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8749 {
8750         int rc, index;
8751
8752         rc = pci_enable_msi(phba->pcidev);
8753         if (!rc)
8754                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8755                                 "0487 PCI enable MSI mode success.\n");
8756         else {
8757                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8758                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
8759                 return rc;
8760         }
8761
8762         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8763                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8764         if (rc) {
8765                 pci_disable_msi(phba->pcidev);
8766                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8767                                 "0490 MSI request_irq failed (%d)\n", rc);
8768                 return rc;
8769         }
8770
8771         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8772                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8773                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8774         }
8775
8776         return 0;
8777 }
8778
8779 /**
8780  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8781  * @phba: pointer to lpfc hba data structure.
8782  *
8783  * This routine is invoked to disable the MSI interrupt mode to device with
8784  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8785  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8786  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8787  * its vector.
8788  **/
8789 static void
8790 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8791 {
8792         free_irq(phba->pcidev->irq, phba);
8793         pci_disable_msi(phba->pcidev);
8794         return;
8795 }
8796
8797 /**
8798  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8799  * @phba: pointer to lpfc hba data structure.
8800  *
8801  * This routine is invoked to enable device interrupt and associate driver's
8802  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8803  * interface spec. Depends on the interrupt mode configured to the driver,
8804  * the driver will try to fallback from the configured interrupt mode to an
8805  * interrupt mode which is supported by the platform, kernel, and device in
8806  * the order of:
8807  * MSI-X -> MSI -> IRQ.
8808  *
8809  * Return codes
8810  *      0 - successful
8811  *      other values - error
8812  **/
8813 static uint32_t
8814 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8815 {
8816         uint32_t intr_mode = LPFC_INTR_ERROR;
8817         int retval, index;
8818
8819         if (cfg_mode == 2) {
8820                 /* Preparation before conf_msi mbox cmd */
8821                 retval = 0;
8822                 if (!retval) {
8823                         /* Now, try to enable MSI-X interrupt mode */
8824                         retval = lpfc_sli4_enable_msix(phba);
8825                         if (!retval) {
8826                                 /* Indicate initialization to MSI-X mode */
8827                                 phba->intr_type = MSIX;
8828                                 intr_mode = 2;
8829                         }
8830                 }
8831         }
8832
8833         /* Fallback to MSI if MSI-X initialization failed */
8834         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8835                 retval = lpfc_sli4_enable_msi(phba);
8836                 if (!retval) {
8837                         /* Indicate initialization to MSI mode */
8838                         phba->intr_type = MSI;
8839                         intr_mode = 1;
8840                 }
8841         }
8842
8843         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8844         if (phba->intr_type == NONE) {
8845                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8846                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8847                 if (!retval) {
8848                         /* Indicate initialization to INTx mode */
8849                         phba->intr_type = INTx;
8850                         intr_mode = 0;
8851                         for (index = 0; index < phba->cfg_fcp_io_channel;
8852                              index++) {
8853                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8854                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8855                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
8856                                         fcp_eq_in_use, 1);
8857                         }
8858                 }
8859         }
8860         return intr_mode;
8861 }
8862
8863 /**
8864  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8865  * @phba: pointer to lpfc hba data structure.
8866  *
8867  * This routine is invoked to disable device interrupt and disassociate
8868  * the driver's interrupt handler(s) from interrupt vector(s) to device
8869  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8870  * will release the interrupt vector(s) for the message signaled interrupt.
8871  **/
8872 static void
8873 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8874 {
8875         /* Disable the currently initialized interrupt mode */
8876         if (phba->intr_type == MSIX)
8877                 lpfc_sli4_disable_msix(phba);
8878         else if (phba->intr_type == MSI)
8879                 lpfc_sli4_disable_msi(phba);
8880         else if (phba->intr_type == INTx)
8881                 free_irq(phba->pcidev->irq, phba);
8882
8883         /* Reset interrupt management states */
8884         phba->intr_type = NONE;
8885         phba->sli.slistat.sli_intr = 0;
8886
8887         return;
8888 }
8889
8890 /**
8891  * lpfc_unset_hba - Unset SLI3 hba device initialization
8892  * @phba: pointer to lpfc hba data structure.
8893  *
8894  * This routine is invoked to unset the HBA device initialization steps to
8895  * a device with SLI-3 interface spec.
8896  **/
8897 static void
8898 lpfc_unset_hba(struct lpfc_hba *phba)
8899 {
8900         struct lpfc_vport *vport = phba->pport;
8901         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8902
8903         spin_lock_irq(shost->host_lock);
8904         vport->load_flag |= FC_UNLOADING;
8905         spin_unlock_irq(shost->host_lock);
8906
8907         kfree(phba->vpi_bmask);
8908         kfree(phba->vpi_ids);
8909
8910         lpfc_stop_hba_timers(phba);
8911
8912         phba->pport->work_port_events = 0;
8913
8914         lpfc_sli_hba_down(phba);
8915
8916         lpfc_sli_brdrestart(phba);
8917
8918         lpfc_sli_disable_intr(phba);
8919
8920         return;
8921 }
8922
8923 /**
8924  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8925  * @phba: Pointer to HBA context object.
8926  *
8927  * This function is called in the SLI4 code path to wait for completion
8928  * of device's XRIs exchange busy. It will check the XRI exchange busy
8929  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8930  * that, it will check the XRI exchange busy on outstanding FCP and ELS
8931  * I/Os every 30 seconds, log error message, and wait forever. Only when
8932  * all XRI exchange busy complete, the driver unload shall proceed with
8933  * invoking the function reset ioctl mailbox command to the CNA and the
8934  * the rest of the driver unload resource release.
8935  **/
8936 static void
8937 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8938 {
8939         int wait_time = 0;
8940         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8941         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8942
8943         while (!fcp_xri_cmpl || !els_xri_cmpl) {
8944                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8945                         if (!fcp_xri_cmpl)
8946                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8947                                                 "2877 FCP XRI exchange busy "
8948                                                 "wait time: %d seconds.\n",
8949                                                 wait_time/1000);
8950                         if (!els_xri_cmpl)
8951                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8952                                                 "2878 ELS XRI exchange busy "
8953                                                 "wait time: %d seconds.\n",
8954                                                 wait_time/1000);
8955                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8956                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8957                 } else {
8958                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8959                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8960                 }
8961                 fcp_xri_cmpl =
8962                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8963                 els_xri_cmpl =
8964                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8965         }
8966 }
8967
8968 /**
8969  * lpfc_sli4_hba_unset - Unset the fcoe hba
8970  * @phba: Pointer to HBA context object.
8971  *
8972  * This function is called in the SLI4 code path to reset the HBA's FCoE
8973  * function. The caller is not required to hold any lock. This routine
8974  * issues PCI function reset mailbox command to reset the FCoE function.
8975  * At the end of the function, it calls lpfc_hba_down_post function to
8976  * free any pending commands.
8977  **/
8978 static void
8979 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8980 {
8981         int wait_cnt = 0;
8982         LPFC_MBOXQ_t *mboxq;
8983         struct pci_dev *pdev = phba->pcidev;
8984
8985         lpfc_stop_hba_timers(phba);
8986         phba->sli4_hba.intr_enable = 0;
8987
8988         /*
8989          * Gracefully wait out the potential current outstanding asynchronous
8990          * mailbox command.
8991          */
8992
8993         /* First, block any pending async mailbox command from posted */
8994         spin_lock_irq(&phba->hbalock);
8995         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8996         spin_unlock_irq(&phba->hbalock);
8997         /* Now, trying to wait it out if we can */
8998         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8999                 msleep(10);
9000                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9001                         break;
9002         }
9003         /* Forcefully release the outstanding mailbox command if timed out */
9004         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9005                 spin_lock_irq(&phba->hbalock);
9006                 mboxq = phba->sli.mbox_active;
9007                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9008                 __lpfc_mbox_cmpl_put(phba, mboxq);
9009                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9010                 phba->sli.mbox_active = NULL;
9011                 spin_unlock_irq(&phba->hbalock);
9012         }
9013
9014         /* Abort all iocbs associated with the hba */
9015         lpfc_sli_hba_iocb_abort(phba);
9016
9017         /* Wait for completion of device XRI exchange busy */
9018         lpfc_sli4_xri_exchange_busy_wait(phba);
9019
9020         /* Disable PCI subsystem interrupt */
9021         lpfc_sli4_disable_intr(phba);
9022
9023         /* Disable SR-IOV if enabled */
9024         if (phba->cfg_sriov_nr_virtfn)
9025                 pci_disable_sriov(pdev);
9026
9027         /* Stop kthread signal shall trigger work_done one more time */
9028         kthread_stop(phba->worker_thread);
9029
9030         /* Reset SLI4 HBA FCoE function */
9031         lpfc_pci_function_reset(phba);
9032         lpfc_sli4_queue_destroy(phba);
9033
9034         /* Stop the SLI4 device port */
9035         phba->pport->work_port_events = 0;
9036 }
9037
9038  /**
9039  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9040  * @phba: Pointer to HBA context object.
9041  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9042  *
9043  * This function is called in the SLI4 code path to read the port's
9044  * sli4 capabilities.
9045  *
9046  * This function may be be called from any context that can block-wait
9047  * for the completion.  The expectation is that this routine is called
9048  * typically from probe_one or from the online routine.
9049  **/
9050 int
9051 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9052 {
9053         int rc;
9054         struct lpfc_mqe *mqe;
9055         struct lpfc_pc_sli4_params *sli4_params;
9056         uint32_t mbox_tmo;
9057
9058         rc = 0;
9059         mqe = &mboxq->u.mqe;
9060
9061         /* Read the port's SLI4 Parameters port capabilities */
9062         lpfc_pc_sli4_params(mboxq);
9063         if (!phba->sli4_hba.intr_enable)
9064                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9065         else {
9066                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9067                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9068         }
9069
9070         if (unlikely(rc))
9071                 return 1;
9072
9073         sli4_params = &phba->sli4_hba.pc_sli4_params;
9074         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9075         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9076         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9077         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9078                                              &mqe->un.sli4_params);
9079         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9080                                              &mqe->un.sli4_params);
9081         sli4_params->proto_types = mqe->un.sli4_params.word3;
9082         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9083         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9084         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9085         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9086         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9087         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9088         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9089         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9090         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9091         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9092         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9093         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9094         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9095         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9096         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9097         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9098         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9099         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9100         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9101         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9102
9103         /* Make sure that sge_supp_len can be handled by the driver */
9104         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9105                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9106
9107         return rc;
9108 }
9109
9110 /**
9111  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9112  * @phba: Pointer to HBA context object.
9113  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9114  *
9115  * This function is called in the SLI4 code path to read the port's
9116  * sli4 capabilities.
9117  *
9118  * This function may be be called from any context that can block-wait
9119  * for the completion.  The expectation is that this routine is called
9120  * typically from probe_one or from the online routine.
9121  **/
9122 int
9123 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9124 {
9125         int rc;
9126         struct lpfc_mqe *mqe = &mboxq->u.mqe;
9127         struct lpfc_pc_sli4_params *sli4_params;
9128         uint32_t mbox_tmo;
9129         int length;
9130         struct lpfc_sli4_parameters *mbx_sli4_parameters;
9131
9132         /*
9133          * By default, the driver assumes the SLI4 port requires RPI
9134          * header postings.  The SLI4_PARAM response will correct this
9135          * assumption.
9136          */
9137         phba->sli4_hba.rpi_hdrs_in_use = 1;
9138
9139         /* Read the port's SLI4 Config Parameters */
9140         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9141                   sizeof(struct lpfc_sli4_cfg_mhdr));
9142         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9143                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9144                          length, LPFC_SLI4_MBX_EMBED);
9145         if (!phba->sli4_hba.intr_enable)
9146                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9147         else {
9148                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9149                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9150         }
9151         if (unlikely(rc))
9152                 return rc;
9153         sli4_params = &phba->sli4_hba.pc_sli4_params;
9154         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9155         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9156         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9157         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9158         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9159                                              mbx_sli4_parameters);
9160         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9161                                              mbx_sli4_parameters);
9162         if (bf_get(cfg_phwq, mbx_sli4_parameters))
9163                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9164         else
9165                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9166         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9167         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9168         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9169         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9170         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9171         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9172         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9173         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9174                                             mbx_sli4_parameters);
9175         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9176                                            mbx_sli4_parameters);
9177         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9178         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9179
9180         /* Make sure that sge_supp_len can be handled by the driver */
9181         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9182                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9183
9184         return 0;
9185 }
9186
9187 /**
9188  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9189  * @pdev: pointer to PCI device
9190  * @pid: pointer to PCI device identifier
9191  *
9192  * This routine is to be called to attach a device with SLI-3 interface spec
9193  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9194  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9195  * information of the device and driver to see if the driver state that it can
9196  * support this kind of device. If the match is successful, the driver core
9197  * invokes this routine. If this routine determines it can claim the HBA, it
9198  * does all the initialization that it needs to do to handle the HBA properly.
9199  *
9200  * Return code
9201  *      0 - driver can claim the device
9202  *      negative value - driver can not claim the device
9203  **/
9204 static int
9205 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9206 {
9207         struct lpfc_hba   *phba;
9208         struct lpfc_vport *vport = NULL;
9209         struct Scsi_Host  *shost = NULL;
9210         int error;
9211         uint32_t cfg_mode, intr_mode;
9212
9213         /* Allocate memory for HBA structure */
9214         phba = lpfc_hba_alloc(pdev);
9215         if (!phba)
9216                 return -ENOMEM;
9217
9218         /* Perform generic PCI device enabling operation */
9219         error = lpfc_enable_pci_dev(phba);
9220         if (error)
9221                 goto out_free_phba;
9222
9223         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9224         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9225         if (error)
9226                 goto out_disable_pci_dev;
9227
9228         /* Set up SLI-3 specific device PCI memory space */
9229         error = lpfc_sli_pci_mem_setup(phba);
9230         if (error) {
9231                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9232                                 "1402 Failed to set up pci memory space.\n");
9233                 goto out_disable_pci_dev;
9234         }
9235
9236         /* Set up phase-1 common device driver resources */
9237         error = lpfc_setup_driver_resource_phase1(phba);
9238         if (error) {
9239                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9240                                 "1403 Failed to set up driver resource.\n");
9241                 goto out_unset_pci_mem_s3;
9242         }
9243
9244         /* Set up SLI-3 specific device driver resources */
9245         error = lpfc_sli_driver_resource_setup(phba);
9246         if (error) {
9247                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9248                                 "1404 Failed to set up driver resource.\n");
9249                 goto out_unset_pci_mem_s3;
9250         }
9251
9252         /* Initialize and populate the iocb list per host */
9253         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9254         if (error) {
9255                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9256                                 "1405 Failed to initialize iocb list.\n");
9257                 goto out_unset_driver_resource_s3;
9258         }
9259
9260         /* Set up common device driver resources */
9261         error = lpfc_setup_driver_resource_phase2(phba);
9262         if (error) {
9263                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9264                                 "1406 Failed to set up driver resource.\n");
9265                 goto out_free_iocb_list;
9266         }
9267
9268         /* Get the default values for Model Name and Description */
9269         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9270
9271         /* Create SCSI host to the physical port */
9272         error = lpfc_create_shost(phba);
9273         if (error) {
9274                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9275                                 "1407 Failed to create scsi host.\n");
9276                 goto out_unset_driver_resource;
9277         }
9278
9279         /* Configure sysfs attributes */
9280         vport = phba->pport;
9281         error = lpfc_alloc_sysfs_attr(vport);
9282         if (error) {
9283                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9284                                 "1476 Failed to allocate sysfs attr\n");
9285                 goto out_destroy_shost;
9286         }
9287
9288         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9289         /* Now, trying to enable interrupt and bring up the device */
9290         cfg_mode = phba->cfg_use_msi;
9291         while (true) {
9292                 /* Put device to a known state before enabling interrupt */
9293                 lpfc_stop_port(phba);
9294                 /* Configure and enable interrupt */
9295                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9296                 if (intr_mode == LPFC_INTR_ERROR) {
9297                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9298                                         "0431 Failed to enable interrupt.\n");
9299                         error = -ENODEV;
9300                         goto out_free_sysfs_attr;
9301                 }
9302                 /* SLI-3 HBA setup */
9303                 if (lpfc_sli_hba_setup(phba)) {
9304                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9305                                         "1477 Failed to set up hba\n");
9306                         error = -ENODEV;
9307                         goto out_remove_device;
9308                 }
9309
9310                 /* Wait 50ms for the interrupts of previous mailbox commands */
9311                 msleep(50);
9312                 /* Check active interrupts on message signaled interrupts */
9313                 if (intr_mode == 0 ||
9314                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9315                         /* Log the current active interrupt mode */
9316                         phba->intr_mode = intr_mode;
9317                         lpfc_log_intr_mode(phba, intr_mode);
9318                         break;
9319                 } else {
9320                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9321                                         "0447 Configure interrupt mode (%d) "
9322                                         "failed active interrupt test.\n",
9323                                         intr_mode);
9324                         /* Disable the current interrupt mode */
9325                         lpfc_sli_disable_intr(phba);
9326                         /* Try next level of interrupt mode */
9327                         cfg_mode = --intr_mode;
9328                 }
9329         }
9330
9331         /* Perform post initialization setup */
9332         lpfc_post_init_setup(phba);
9333
9334         /* Check if there are static vports to be created. */
9335         lpfc_create_static_vport(phba);
9336
9337         return 0;
9338
9339 out_remove_device:
9340         lpfc_unset_hba(phba);
9341 out_free_sysfs_attr:
9342         lpfc_free_sysfs_attr(vport);
9343 out_destroy_shost:
9344         lpfc_destroy_shost(phba);
9345 out_unset_driver_resource:
9346         lpfc_unset_driver_resource_phase2(phba);
9347 out_free_iocb_list:
9348         lpfc_free_iocb_list(phba);
9349 out_unset_driver_resource_s3:
9350         lpfc_sli_driver_resource_unset(phba);
9351 out_unset_pci_mem_s3:
9352         lpfc_sli_pci_mem_unset(phba);
9353 out_disable_pci_dev:
9354         lpfc_disable_pci_dev(phba);
9355         if (shost)
9356                 scsi_host_put(shost);
9357 out_free_phba:
9358         lpfc_hba_free(phba);
9359         return error;
9360 }
9361
9362 /**
9363  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9364  * @pdev: pointer to PCI device
9365  *
9366  * This routine is to be called to disattach a device with SLI-3 interface
9367  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9368  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9369  * device to be removed from the PCI subsystem properly.
9370  **/
9371 static void
9372 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9373 {
9374         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
9375         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9376         struct lpfc_vport **vports;
9377         struct lpfc_hba   *phba = vport->phba;
9378         int i;
9379         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9380
9381         spin_lock_irq(&phba->hbalock);
9382         vport->load_flag |= FC_UNLOADING;
9383         spin_unlock_irq(&phba->hbalock);
9384
9385         lpfc_free_sysfs_attr(vport);
9386
9387         /* Release all the vports against this physical port */
9388         vports = lpfc_create_vport_work_array(phba);
9389         if (vports != NULL)
9390                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9391                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9392                                 continue;
9393                         fc_vport_terminate(vports[i]->fc_vport);
9394                 }
9395         lpfc_destroy_vport_work_array(phba, vports);
9396
9397         /* Remove FC host and then SCSI host with the physical port */
9398         fc_remove_host(shost);
9399         scsi_remove_host(shost);
9400         lpfc_cleanup(vport);
9401
9402         /*
9403          * Bring down the SLI Layer. This step disable all interrupts,
9404          * clears the rings, discards all mailbox commands, and resets
9405          * the HBA.
9406          */
9407
9408         /* HBA interrupt will be disabled after this call */
9409         lpfc_sli_hba_down(phba);
9410         /* Stop kthread signal shall trigger work_done one more time */
9411         kthread_stop(phba->worker_thread);
9412         /* Final cleanup of txcmplq and reset the HBA */
9413         lpfc_sli_brdrestart(phba);
9414
9415         kfree(phba->vpi_bmask);
9416         kfree(phba->vpi_ids);
9417
9418         lpfc_stop_hba_timers(phba);
9419         spin_lock_irq(&phba->hbalock);
9420         list_del_init(&vport->listentry);
9421         spin_unlock_irq(&phba->hbalock);
9422
9423         lpfc_debugfs_terminate(vport);
9424
9425         /* Disable SR-IOV if enabled */
9426         if (phba->cfg_sriov_nr_virtfn)
9427                 pci_disable_sriov(pdev);
9428
9429         /* Disable interrupt */
9430         lpfc_sli_disable_intr(phba);
9431
9432         pci_set_drvdata(pdev, NULL);
9433         scsi_host_put(shost);
9434
9435         /*
9436          * Call scsi_free before mem_free since scsi bufs are released to their
9437          * corresponding pools here.
9438          */
9439         lpfc_scsi_free(phba);
9440         lpfc_mem_free_all(phba);
9441
9442         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9443                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9444
9445         /* Free resources associated with SLI2 interface */
9446         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9447                           phba->slim2p.virt, phba->slim2p.phys);
9448
9449         /* unmap adapter SLIM and Control Registers */
9450         iounmap(phba->ctrl_regs_memmap_p);
9451         iounmap(phba->slim_memmap_p);
9452
9453         lpfc_hba_free(phba);
9454
9455         pci_release_selected_regions(pdev, bars);
9456         pci_disable_device(pdev);
9457 }
9458
9459 /**
9460  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9461  * @pdev: pointer to PCI device
9462  * @msg: power management message
9463  *
9464  * This routine is to be called from the kernel's PCI subsystem to support
9465  * system Power Management (PM) to device with SLI-3 interface spec. When
9466  * PM invokes this method, it quiesces the device by stopping the driver's
9467  * worker thread for the device, turning off device's interrupt and DMA,
9468  * and bring the device offline. Note that as the driver implements the
9469  * minimum PM requirements to a power-aware driver's PM support for the
9470  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9471  * to the suspend() method call will be treated as SUSPEND and the driver will
9472  * fully reinitialize its device during resume() method call, the driver will
9473  * set device to PCI_D3hot state in PCI config space instead of setting it
9474  * according to the @msg provided by the PM.
9475  *
9476  * Return code
9477  *      0 - driver suspended the device
9478  *      Error otherwise
9479  **/
9480 static int
9481 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9482 {
9483         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9484         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9485
9486         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9487                         "0473 PCI device Power Management suspend.\n");
9488
9489         /* Bring down the device */
9490         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9491         lpfc_offline(phba);
9492         kthread_stop(phba->worker_thread);
9493
9494         /* Disable interrupt from device */
9495         lpfc_sli_disable_intr(phba);
9496
9497         /* Save device state to PCI config space */
9498         pci_save_state(pdev);
9499         pci_set_power_state(pdev, PCI_D3hot);
9500
9501         return 0;
9502 }
9503
9504 /**
9505  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9506  * @pdev: pointer to PCI device
9507  *
9508  * This routine is to be called from the kernel's PCI subsystem to support
9509  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9510  * invokes this method, it restores the device's PCI config space state and
9511  * fully reinitializes the device and brings it online. Note that as the
9512  * driver implements the minimum PM requirements to a power-aware driver's
9513  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9514  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9515  * driver will fully reinitialize its device during resume() method call,
9516  * the device will be set to PCI_D0 directly in PCI config space before
9517  * restoring the state.
9518  *
9519  * Return code
9520  *      0 - driver suspended the device
9521  *      Error otherwise
9522  **/
9523 static int
9524 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9525 {
9526         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9527         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9528         uint32_t intr_mode;
9529         int error;
9530
9531         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9532                         "0452 PCI device Power Management resume.\n");
9533
9534         /* Restore device state from PCI config space */
9535         pci_set_power_state(pdev, PCI_D0);
9536         pci_restore_state(pdev);
9537
9538         /*
9539          * As the new kernel behavior of pci_restore_state() API call clears
9540          * device saved_state flag, need to save the restored state again.
9541          */
9542         pci_save_state(pdev);
9543
9544         if (pdev->is_busmaster)
9545                 pci_set_master(pdev);
9546
9547         /* Startup the kernel thread for this host adapter. */
9548         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9549                                         "lpfc_worker_%d", phba->brd_no);
9550         if (IS_ERR(phba->worker_thread)) {
9551                 error = PTR_ERR(phba->worker_thread);
9552                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9553                                 "0434 PM resume failed to start worker "
9554                                 "thread: error=x%x.\n", error);
9555                 return error;
9556         }
9557
9558         /* Configure and enable interrupt */
9559         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9560         if (intr_mode == LPFC_INTR_ERROR) {
9561                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9562                                 "0430 PM resume Failed to enable interrupt\n");
9563                 return -EIO;
9564         } else
9565                 phba->intr_mode = intr_mode;
9566
9567         /* Restart HBA and bring it online */
9568         lpfc_sli_brdrestart(phba);
9569         lpfc_online(phba);
9570
9571         /* Log the current active interrupt mode */
9572         lpfc_log_intr_mode(phba, phba->intr_mode);
9573
9574         return 0;
9575 }
9576
9577 /**
9578  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9579  * @phba: pointer to lpfc hba data structure.
9580  *
9581  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9582  * aborts all the outstanding SCSI I/Os to the pci device.
9583  **/
9584 static void
9585 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9586 {
9587         struct lpfc_sli *psli = &phba->sli;
9588         struct lpfc_sli_ring  *pring;
9589
9590         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9591                         "2723 PCI channel I/O abort preparing for recovery\n");
9592
9593         /*
9594          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9595          * and let the SCSI mid-layer to retry them to recover.
9596          */
9597         pring = &psli->ring[psli->fcp_ring];
9598         lpfc_sli_abort_iocb_ring(phba, pring);
9599 }
9600
9601 /**
9602  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9603  * @phba: pointer to lpfc hba data structure.
9604  *
9605  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9606  * disables the device interrupt and pci device, and aborts the internal FCP
9607  * pending I/Os.
9608  **/
9609 static void
9610 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9611 {
9612         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9613                         "2710 PCI channel disable preparing for reset\n");
9614
9615         /* Block any management I/Os to the device */
9616         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9617
9618         /* Block all SCSI devices' I/Os on the host */
9619         lpfc_scsi_dev_block(phba);
9620
9621         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9622         lpfc_sli_flush_fcp_rings(phba);
9623
9624         /* stop all timers */
9625         lpfc_stop_hba_timers(phba);
9626
9627         /* Disable interrupt and pci device */
9628         lpfc_sli_disable_intr(phba);
9629         pci_disable_device(phba->pcidev);
9630 }
9631
9632 /**
9633  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9634  * @phba: pointer to lpfc hba data structure.
9635  *
9636  * This routine is called to prepare the SLI3 device for PCI slot permanently
9637  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9638  * pending I/Os.
9639  **/
9640 static void
9641 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9642 {
9643         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9644                         "2711 PCI channel permanent disable for failure\n");
9645         /* Block all SCSI devices' I/Os on the host */
9646         lpfc_scsi_dev_block(phba);
9647
9648         /* stop all timers */
9649         lpfc_stop_hba_timers(phba);
9650
9651         /* Clean up all driver's outstanding SCSI I/Os */
9652         lpfc_sli_flush_fcp_rings(phba);
9653 }
9654
9655 /**
9656  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9657  * @pdev: pointer to PCI device.
9658  * @state: the current PCI connection state.
9659  *
9660  * This routine is called from the PCI subsystem for I/O error handling to
9661  * device with SLI-3 interface spec. This function is called by the PCI
9662  * subsystem after a PCI bus error affecting this device has been detected.
9663  * When this function is invoked, it will need to stop all the I/Os and
9664  * interrupt(s) to the device. Once that is done, it will return
9665  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9666  * as desired.
9667  *
9668  * Return codes
9669  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9670  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9671  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9672  **/
9673 static pci_ers_result_t
9674 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9675 {
9676         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9677         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9678
9679         switch (state) {
9680         case pci_channel_io_normal:
9681                 /* Non-fatal error, prepare for recovery */
9682                 lpfc_sli_prep_dev_for_recover(phba);
9683                 return PCI_ERS_RESULT_CAN_RECOVER;
9684         case pci_channel_io_frozen:
9685                 /* Fatal error, prepare for slot reset */
9686                 lpfc_sli_prep_dev_for_reset(phba);
9687                 return PCI_ERS_RESULT_NEED_RESET;
9688         case pci_channel_io_perm_failure:
9689                 /* Permanent failure, prepare for device down */
9690                 lpfc_sli_prep_dev_for_perm_failure(phba);
9691                 return PCI_ERS_RESULT_DISCONNECT;
9692         default:
9693                 /* Unknown state, prepare and request slot reset */
9694                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9695                                 "0472 Unknown PCI error state: x%x\n", state);
9696                 lpfc_sli_prep_dev_for_reset(phba);
9697                 return PCI_ERS_RESULT_NEED_RESET;
9698         }
9699 }
9700
9701 /**
9702  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9703  * @pdev: pointer to PCI device.
9704  *
9705  * This routine is called from the PCI subsystem for error handling to
9706  * device with SLI-3 interface spec. This is called after PCI bus has been
9707  * reset to restart the PCI card from scratch, as if from a cold-boot.
9708  * During the PCI subsystem error recovery, after driver returns
9709  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9710  * recovery and then call this routine before calling the .resume method
9711  * to recover the device. This function will initialize the HBA device,
9712  * enable the interrupt, but it will just put the HBA to offline state
9713  * without passing any I/O traffic.
9714  *
9715  * Return codes
9716  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9717  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9718  */
9719 static pci_ers_result_t
9720 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9721 {
9722         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9723         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9724         struct lpfc_sli *psli = &phba->sli;
9725         uint32_t intr_mode;
9726
9727         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9728         if (pci_enable_device_mem(pdev)) {
9729                 printk(KERN_ERR "lpfc: Cannot re-enable "
9730                         "PCI device after reset.\n");
9731                 return PCI_ERS_RESULT_DISCONNECT;
9732         }
9733
9734         pci_restore_state(pdev);
9735
9736         /*
9737          * As the new kernel behavior of pci_restore_state() API call clears
9738          * device saved_state flag, need to save the restored state again.
9739          */
9740         pci_save_state(pdev);
9741
9742         if (pdev->is_busmaster)
9743                 pci_set_master(pdev);
9744
9745         spin_lock_irq(&phba->hbalock);
9746         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9747         spin_unlock_irq(&phba->hbalock);
9748
9749         /* Configure and enable interrupt */
9750         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9751         if (intr_mode == LPFC_INTR_ERROR) {
9752                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9753                                 "0427 Cannot re-enable interrupt after "
9754                                 "slot reset.\n");
9755                 return PCI_ERS_RESULT_DISCONNECT;
9756         } else
9757                 phba->intr_mode = intr_mode;
9758
9759         /* Take device offline, it will perform cleanup */
9760         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9761         lpfc_offline(phba);
9762         lpfc_sli_brdrestart(phba);
9763
9764         /* Log the current active interrupt mode */
9765         lpfc_log_intr_mode(phba, phba->intr_mode);
9766
9767         return PCI_ERS_RESULT_RECOVERED;
9768 }
9769
9770 /**
9771  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9772  * @pdev: pointer to PCI device
9773  *
9774  * This routine is called from the PCI subsystem for error handling to device
9775  * with SLI-3 interface spec. It is called when kernel error recovery tells
9776  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9777  * error recovery. After this call, traffic can start to flow from this device
9778  * again.
9779  */
9780 static void
9781 lpfc_io_resume_s3(struct pci_dev *pdev)
9782 {
9783         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9784         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9785
9786         /* Bring device online, it will be no-op for non-fatal error resume */
9787         lpfc_online(phba);
9788
9789         /* Clean up Advanced Error Reporting (AER) if needed */
9790         if (phba->hba_flag & HBA_AER_ENABLED)
9791                 pci_cleanup_aer_uncorrect_error_status(pdev);
9792 }
9793
9794 /**
9795  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9796  * @phba: pointer to lpfc hba data structure.
9797  *
9798  * returns the number of ELS/CT IOCBs to reserve
9799  **/
9800 int
9801 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9802 {
9803         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9804
9805         if (phba->sli_rev == LPFC_SLI_REV4) {
9806                 if (max_xri <= 100)
9807                         return 10;
9808                 else if (max_xri <= 256)
9809                         return 25;
9810                 else if (max_xri <= 512)
9811                         return 50;
9812                 else if (max_xri <= 1024)
9813                         return 100;
9814                 else if (max_xri <= 1536)
9815                         return 150;
9816                 else if (max_xri <= 2048)
9817                         return 200;
9818                 else
9819                         return 250;
9820         } else
9821                 return 0;
9822 }
9823
9824 /**
9825  * lpfc_write_firmware - attempt to write a firmware image to the port
9826  * @fw: pointer to firmware image returned from request_firmware.
9827  * @phba: pointer to lpfc hba data structure.
9828  *
9829  **/
9830 static void
9831 lpfc_write_firmware(const struct firmware *fw, void *context)
9832 {
9833         struct lpfc_hba *phba = (struct lpfc_hba *)context;
9834         char fwrev[FW_REV_STR_SIZE];
9835         struct lpfc_grp_hdr *image;
9836         struct list_head dma_buffer_list;
9837         int i, rc = 0;
9838         struct lpfc_dmabuf *dmabuf, *next;
9839         uint32_t offset = 0, temp_offset = 0;
9840
9841         /* It can be null in no-wait mode, sanity check */
9842         if (!fw) {
9843                 rc = -ENXIO;
9844                 goto out;
9845         }
9846         image = (struct lpfc_grp_hdr *)fw->data;
9847
9848         INIT_LIST_HEAD(&dma_buffer_list);
9849         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9850             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9851              LPFC_FILE_TYPE_GROUP) ||
9852             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9853             (be32_to_cpu(image->size) != fw->size)) {
9854                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9855                                 "3022 Invalid FW image found. "
9856                                 "Magic:%x Type:%x ID:%x\n",
9857                                 be32_to_cpu(image->magic_number),
9858                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
9859                                 bf_get_be32(lpfc_grp_hdr_id, image));
9860                 rc = -EINVAL;
9861                 goto release_out;
9862         }
9863         lpfc_decode_firmware_rev(phba, fwrev, 1);
9864         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9865                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9866                                 "3023 Updating Firmware, Current Version:%s "
9867                                 "New Version:%s\n",
9868                                 fwrev, image->revision);
9869                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9870                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9871                                          GFP_KERNEL);
9872                         if (!dmabuf) {
9873                                 rc = -ENOMEM;
9874                                 goto release_out;
9875                         }
9876                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9877                                                           SLI4_PAGE_SIZE,
9878                                                           &dmabuf->phys,
9879                                                           GFP_KERNEL);
9880                         if (!dmabuf->virt) {
9881                                 kfree(dmabuf);
9882                                 rc = -ENOMEM;
9883                                 goto release_out;
9884                         }
9885                         list_add_tail(&dmabuf->list, &dma_buffer_list);
9886                 }
9887                 while (offset < fw->size) {
9888                         temp_offset = offset;
9889                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9890                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9891                                         memcpy(dmabuf->virt,
9892                                                fw->data + temp_offset,
9893                                                fw->size - temp_offset);
9894                                         temp_offset = fw->size;
9895                                         break;
9896                                 }
9897                                 memcpy(dmabuf->virt, fw->data + temp_offset,
9898                                        SLI4_PAGE_SIZE);
9899                                 temp_offset += SLI4_PAGE_SIZE;
9900                         }
9901                         rc = lpfc_wr_object(phba, &dma_buffer_list,
9902                                     (fw->size - offset), &offset);
9903                         if (rc)
9904                                 goto release_out;
9905                 }
9906                 rc = offset;
9907         }
9908
9909 release_out:
9910         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9911                 list_del(&dmabuf->list);
9912                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9913                                   dmabuf->virt, dmabuf->phys);
9914                 kfree(dmabuf);
9915         }
9916         release_firmware(fw);
9917 out:
9918         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9919                         "3024 Firmware update done: %d.\n", rc);
9920         return;
9921 }
9922
9923 /**
9924  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
9925  * @phba: pointer to lpfc hba data structure.
9926  *
9927  * This routine is called to perform Linux generic firmware upgrade on device
9928  * that supports such feature.
9929  **/
9930 int
9931 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
9932 {
9933         uint8_t file_name[ELX_MODEL_NAME_SIZE];
9934         int ret;
9935         const struct firmware *fw;
9936
9937         /* Only supported on SLI4 interface type 2 for now */
9938         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
9939             LPFC_SLI_INTF_IF_TYPE_2)
9940                 return -EPERM;
9941
9942         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
9943
9944         if (fw_upgrade == INT_FW_UPGRADE) {
9945                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
9946                                         file_name, &phba->pcidev->dev,
9947                                         GFP_KERNEL, (void *)phba,
9948                                         lpfc_write_firmware);
9949         } else if (fw_upgrade == RUN_FW_UPGRADE) {
9950                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
9951                 if (!ret)
9952                         lpfc_write_firmware(fw, (void *)phba);
9953         } else {
9954                 ret = -EINVAL;
9955         }
9956
9957         return ret;
9958 }
9959
9960 /**
9961  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9962  * @pdev: pointer to PCI device
9963  * @pid: pointer to PCI device identifier
9964  *
9965  * This routine is called from the kernel's PCI subsystem to device with
9966  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9967  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9968  * information of the device and driver to see if the driver state that it
9969  * can support this kind of device. If the match is successful, the driver
9970  * core invokes this routine. If this routine determines it can claim the HBA,
9971  * it does all the initialization that it needs to do to handle the HBA
9972  * properly.
9973  *
9974  * Return code
9975  *      0 - driver can claim the device
9976  *      negative value - driver can not claim the device
9977  **/
9978 static int
9979 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9980 {
9981         struct lpfc_hba   *phba;
9982         struct lpfc_vport *vport = NULL;
9983         struct Scsi_Host  *shost = NULL;
9984         int error, ret;
9985         uint32_t cfg_mode, intr_mode;
9986         int adjusted_fcp_io_channel;
9987
9988         /* Allocate memory for HBA structure */
9989         phba = lpfc_hba_alloc(pdev);
9990         if (!phba)
9991                 return -ENOMEM;
9992
9993         /* Perform generic PCI device enabling operation */
9994         error = lpfc_enable_pci_dev(phba);
9995         if (error)
9996                 goto out_free_phba;
9997
9998         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9999         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10000         if (error)
10001                 goto out_disable_pci_dev;
10002
10003         /* Set up SLI-4 specific device PCI memory space */
10004         error = lpfc_sli4_pci_mem_setup(phba);
10005         if (error) {
10006                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10007                                 "1410 Failed to set up pci memory space.\n");
10008                 goto out_disable_pci_dev;
10009         }
10010
10011         /* Set up phase-1 common device driver resources */
10012         error = lpfc_setup_driver_resource_phase1(phba);
10013         if (error) {
10014                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10015                                 "1411 Failed to set up driver resource.\n");
10016                 goto out_unset_pci_mem_s4;
10017         }
10018
10019         /* Set up SLI-4 Specific device driver resources */
10020         error = lpfc_sli4_driver_resource_setup(phba);
10021         if (error) {
10022                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10023                                 "1412 Failed to set up driver resource.\n");
10024                 goto out_unset_pci_mem_s4;
10025         }
10026
10027         /* Initialize and populate the iocb list per host */
10028
10029         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10030                         "2821 initialize iocb list %d.\n",
10031                         phba->cfg_iocb_cnt*1024);
10032         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10033
10034         if (error) {
10035                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10036                                 "1413 Failed to initialize iocb list.\n");
10037                 goto out_unset_driver_resource_s4;
10038         }
10039
10040         INIT_LIST_HEAD(&phba->active_rrq_list);
10041         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10042
10043         /* Set up common device driver resources */
10044         error = lpfc_setup_driver_resource_phase2(phba);
10045         if (error) {
10046                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10047                                 "1414 Failed to set up driver resource.\n");
10048                 goto out_free_iocb_list;
10049         }
10050
10051         /* Get the default values for Model Name and Description */
10052         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10053
10054         /* Create SCSI host to the physical port */
10055         error = lpfc_create_shost(phba);
10056         if (error) {
10057                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10058                                 "1415 Failed to create scsi host.\n");
10059                 goto out_unset_driver_resource;
10060         }
10061
10062         /* Configure sysfs attributes */
10063         vport = phba->pport;
10064         error = lpfc_alloc_sysfs_attr(vport);
10065         if (error) {
10066                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10067                                 "1416 Failed to allocate sysfs attr\n");
10068                 goto out_destroy_shost;
10069         }
10070
10071         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10072         /* Now, trying to enable interrupt and bring up the device */
10073         cfg_mode = phba->cfg_use_msi;
10074
10075         /* Put device to a known state before enabling interrupt */
10076         lpfc_stop_port(phba);
10077         /* Configure and enable interrupt */
10078         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10079         if (intr_mode == LPFC_INTR_ERROR) {
10080                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10081                                 "0426 Failed to enable interrupt.\n");
10082                 error = -ENODEV;
10083                 goto out_free_sysfs_attr;
10084         }
10085         /* Default to single EQ for non-MSI-X */
10086         if (phba->intr_type != MSIX)
10087                 adjusted_fcp_io_channel = 1;
10088         else
10089                 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10090         phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10091         /* Set up SLI-4 HBA */
10092         if (lpfc_sli4_hba_setup(phba)) {
10093                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10094                                 "1421 Failed to set up hba\n");
10095                 error = -ENODEV;
10096                 goto out_disable_intr;
10097         }
10098
10099         /* Log the current active interrupt mode */
10100         phba->intr_mode = intr_mode;
10101         lpfc_log_intr_mode(phba, intr_mode);
10102
10103         /* Perform post initialization setup */
10104         lpfc_post_init_setup(phba);
10105
10106         /* check for firmware upgrade or downgrade */
10107         if (phba->cfg_request_firmware_upgrade)
10108                 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10109
10110         /* Check if there are static vports to be created. */
10111         lpfc_create_static_vport(phba);
10112         return 0;
10113
10114 out_disable_intr:
10115         lpfc_sli4_disable_intr(phba);
10116 out_free_sysfs_attr:
10117         lpfc_free_sysfs_attr(vport);
10118 out_destroy_shost:
10119         lpfc_destroy_shost(phba);
10120 out_unset_driver_resource:
10121         lpfc_unset_driver_resource_phase2(phba);
10122 out_free_iocb_list:
10123         lpfc_free_iocb_list(phba);
10124 out_unset_driver_resource_s4:
10125         lpfc_sli4_driver_resource_unset(phba);
10126 out_unset_pci_mem_s4:
10127         lpfc_sli4_pci_mem_unset(phba);
10128 out_disable_pci_dev:
10129         lpfc_disable_pci_dev(phba);
10130         if (shost)
10131                 scsi_host_put(shost);
10132 out_free_phba:
10133         lpfc_hba_free(phba);
10134         return error;
10135 }
10136
10137 /**
10138  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10139  * @pdev: pointer to PCI device
10140  *
10141  * This routine is called from the kernel's PCI subsystem to device with
10142  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10143  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10144  * device to be removed from the PCI subsystem properly.
10145  **/
10146 static void
10147 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10148 {
10149         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10150         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10151         struct lpfc_vport **vports;
10152         struct lpfc_hba *phba = vport->phba;
10153         int i;
10154
10155         /* Mark the device unloading flag */
10156         spin_lock_irq(&phba->hbalock);
10157         vport->load_flag |= FC_UNLOADING;
10158         spin_unlock_irq(&phba->hbalock);
10159
10160         /* Free the HBA sysfs attributes */
10161         lpfc_free_sysfs_attr(vport);
10162
10163         /* Release all the vports against this physical port */
10164         vports = lpfc_create_vport_work_array(phba);
10165         if (vports != NULL)
10166                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10167                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10168                                 continue;
10169                         fc_vport_terminate(vports[i]->fc_vport);
10170                 }
10171         lpfc_destroy_vport_work_array(phba, vports);
10172
10173         /* Remove FC host and then SCSI host with the physical port */
10174         fc_remove_host(shost);
10175         scsi_remove_host(shost);
10176
10177         /* Perform cleanup on the physical port */
10178         lpfc_cleanup(vport);
10179
10180         /*
10181          * Bring down the SLI Layer. This step disables all interrupts,
10182          * clears the rings, discards all mailbox commands, and resets
10183          * the HBA FCoE function.
10184          */
10185         lpfc_debugfs_terminate(vport);
10186         lpfc_sli4_hba_unset(phba);
10187
10188         spin_lock_irq(&phba->hbalock);
10189         list_del_init(&vport->listentry);
10190         spin_unlock_irq(&phba->hbalock);
10191
10192         /* Perform scsi free before driver resource_unset since scsi
10193          * buffers are released to their corresponding pools here.
10194          */
10195         lpfc_scsi_free(phba);
10196
10197         lpfc_sli4_driver_resource_unset(phba);
10198
10199         /* Unmap adapter Control and Doorbell registers */
10200         lpfc_sli4_pci_mem_unset(phba);
10201
10202         /* Release PCI resources and disable device's PCI function */
10203         scsi_host_put(shost);
10204         lpfc_disable_pci_dev(phba);
10205
10206         /* Finally, free the driver's device data structure */
10207         lpfc_hba_free(phba);
10208
10209         return;
10210 }
10211
10212 /**
10213  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10214  * @pdev: pointer to PCI device
10215  * @msg: power management message
10216  *
10217  * This routine is called from the kernel's PCI subsystem to support system
10218  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10219  * this method, it quiesces the device by stopping the driver's worker
10220  * thread for the device, turning off device's interrupt and DMA, and bring
10221  * the device offline. Note that as the driver implements the minimum PM
10222  * requirements to a power-aware driver's PM support for suspend/resume -- all
10223  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10224  * method call will be treated as SUSPEND and the driver will fully
10225  * reinitialize its device during resume() method call, the driver will set
10226  * device to PCI_D3hot state in PCI config space instead of setting it
10227  * according to the @msg provided by the PM.
10228  *
10229  * Return code
10230  *      0 - driver suspended the device
10231  *      Error otherwise
10232  **/
10233 static int
10234 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10235 {
10236         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10237         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10238
10239         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10240                         "2843 PCI device Power Management suspend.\n");
10241
10242         /* Bring down the device */
10243         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10244         lpfc_offline(phba);
10245         kthread_stop(phba->worker_thread);
10246
10247         /* Disable interrupt from device */
10248         lpfc_sli4_disable_intr(phba);
10249         lpfc_sli4_queue_destroy(phba);
10250
10251         /* Save device state to PCI config space */
10252         pci_save_state(pdev);
10253         pci_set_power_state(pdev, PCI_D3hot);
10254
10255         return 0;
10256 }
10257
10258 /**
10259  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10260  * @pdev: pointer to PCI device
10261  *
10262  * This routine is called from the kernel's PCI subsystem to support system
10263  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10264  * this method, it restores the device's PCI config space state and fully
10265  * reinitializes the device and brings it online. Note that as the driver
10266  * implements the minimum PM requirements to a power-aware driver's PM for
10267  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10268  * to the suspend() method call will be treated as SUSPEND and the driver
10269  * will fully reinitialize its device during resume() method call, the device
10270  * will be set to PCI_D0 directly in PCI config space before restoring the
10271  * state.
10272  *
10273  * Return code
10274  *      0 - driver suspended the device
10275  *      Error otherwise
10276  **/
10277 static int
10278 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10279 {
10280         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10281         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10282         uint32_t intr_mode;
10283         int error;
10284
10285         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10286                         "0292 PCI device Power Management resume.\n");
10287
10288         /* Restore device state from PCI config space */
10289         pci_set_power_state(pdev, PCI_D0);
10290         pci_restore_state(pdev);
10291
10292         /*
10293          * As the new kernel behavior of pci_restore_state() API call clears
10294          * device saved_state flag, need to save the restored state again.
10295          */
10296         pci_save_state(pdev);
10297
10298         if (pdev->is_busmaster)
10299                 pci_set_master(pdev);
10300
10301          /* Startup the kernel thread for this host adapter. */
10302         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10303                                         "lpfc_worker_%d", phba->brd_no);
10304         if (IS_ERR(phba->worker_thread)) {
10305                 error = PTR_ERR(phba->worker_thread);
10306                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10307                                 "0293 PM resume failed to start worker "
10308                                 "thread: error=x%x.\n", error);
10309                 return error;
10310         }
10311
10312         /* Configure and enable interrupt */
10313         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10314         if (intr_mode == LPFC_INTR_ERROR) {
10315                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10316                                 "0294 PM resume Failed to enable interrupt\n");
10317                 return -EIO;
10318         } else
10319                 phba->intr_mode = intr_mode;
10320
10321         /* Restart HBA and bring it online */
10322         lpfc_sli_brdrestart(phba);
10323         lpfc_online(phba);
10324
10325         /* Log the current active interrupt mode */
10326         lpfc_log_intr_mode(phba, phba->intr_mode);
10327
10328         return 0;
10329 }
10330
10331 /**
10332  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10333  * @phba: pointer to lpfc hba data structure.
10334  *
10335  * This routine is called to prepare the SLI4 device for PCI slot recover. It
10336  * aborts all the outstanding SCSI I/Os to the pci device.
10337  **/
10338 static void
10339 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10340 {
10341         struct lpfc_sli *psli = &phba->sli;
10342         struct lpfc_sli_ring  *pring;
10343
10344         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10345                         "2828 PCI channel I/O abort preparing for recovery\n");
10346         /*
10347          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10348          * and let the SCSI mid-layer to retry them to recover.
10349          */
10350         pring = &psli->ring[psli->fcp_ring];
10351         lpfc_sli_abort_iocb_ring(phba, pring);
10352 }
10353
10354 /**
10355  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10356  * @phba: pointer to lpfc hba data structure.
10357  *
10358  * This routine is called to prepare the SLI4 device for PCI slot reset. It
10359  * disables the device interrupt and pci device, and aborts the internal FCP
10360  * pending I/Os.
10361  **/
10362 static void
10363 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10364 {
10365         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10366                         "2826 PCI channel disable preparing for reset\n");
10367
10368         /* Block any management I/Os to the device */
10369         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10370
10371         /* Block all SCSI devices' I/Os on the host */
10372         lpfc_scsi_dev_block(phba);
10373
10374         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10375         lpfc_sli_flush_fcp_rings(phba);
10376
10377         /* stop all timers */
10378         lpfc_stop_hba_timers(phba);
10379
10380         /* Disable interrupt and pci device */
10381         lpfc_sli4_disable_intr(phba);
10382         lpfc_sli4_queue_destroy(phba);
10383         pci_disable_device(phba->pcidev);
10384 }
10385
10386 /**
10387  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10388  * @phba: pointer to lpfc hba data structure.
10389  *
10390  * This routine is called to prepare the SLI4 device for PCI slot permanently
10391  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10392  * pending I/Os.
10393  **/
10394 static void
10395 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10396 {
10397         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10398                         "2827 PCI channel permanent disable for failure\n");
10399
10400         /* Block all SCSI devices' I/Os on the host */
10401         lpfc_scsi_dev_block(phba);
10402
10403         /* stop all timers */
10404         lpfc_stop_hba_timers(phba);
10405
10406         /* Clean up all driver's outstanding SCSI I/Os */
10407         lpfc_sli_flush_fcp_rings(phba);
10408 }
10409
10410 /**
10411  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10412  * @pdev: pointer to PCI device.
10413  * @state: the current PCI connection state.
10414  *
10415  * This routine is called from the PCI subsystem for error handling to device
10416  * with SLI-4 interface spec. This function is called by the PCI subsystem
10417  * after a PCI bus error affecting this device has been detected. When this
10418  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10419  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10420  * for the PCI subsystem to perform proper recovery as desired.
10421  *
10422  * Return codes
10423  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10424  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10425  **/
10426 static pci_ers_result_t
10427 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10428 {
10429         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10430         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10431
10432         switch (state) {
10433         case pci_channel_io_normal:
10434                 /* Non-fatal error, prepare for recovery */
10435                 lpfc_sli4_prep_dev_for_recover(phba);
10436                 return PCI_ERS_RESULT_CAN_RECOVER;
10437         case pci_channel_io_frozen:
10438                 /* Fatal error, prepare for slot reset */
10439                 lpfc_sli4_prep_dev_for_reset(phba);
10440                 return PCI_ERS_RESULT_NEED_RESET;
10441         case pci_channel_io_perm_failure:
10442                 /* Permanent failure, prepare for device down */
10443                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10444                 return PCI_ERS_RESULT_DISCONNECT;
10445         default:
10446                 /* Unknown state, prepare and request slot reset */
10447                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10448                                 "2825 Unknown PCI error state: x%x\n", state);
10449                 lpfc_sli4_prep_dev_for_reset(phba);
10450                 return PCI_ERS_RESULT_NEED_RESET;
10451         }
10452 }
10453
10454 /**
10455  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10456  * @pdev: pointer to PCI device.
10457  *
10458  * This routine is called from the PCI subsystem for error handling to device
10459  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10460  * restart the PCI card from scratch, as if from a cold-boot. During the
10461  * PCI subsystem error recovery, after the driver returns
10462  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10463  * recovery and then call this routine before calling the .resume method to
10464  * recover the device. This function will initialize the HBA device, enable
10465  * the interrupt, but it will just put the HBA to offline state without
10466  * passing any I/O traffic.
10467  *
10468  * Return codes
10469  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10470  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10471  */
10472 static pci_ers_result_t
10473 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10474 {
10475         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10476         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10477         struct lpfc_sli *psli = &phba->sli;
10478         uint32_t intr_mode;
10479
10480         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10481         if (pci_enable_device_mem(pdev)) {
10482                 printk(KERN_ERR "lpfc: Cannot re-enable "
10483                         "PCI device after reset.\n");
10484                 return PCI_ERS_RESULT_DISCONNECT;
10485         }
10486
10487         pci_restore_state(pdev);
10488
10489         /*
10490          * As the new kernel behavior of pci_restore_state() API call clears
10491          * device saved_state flag, need to save the restored state again.
10492          */
10493         pci_save_state(pdev);
10494
10495         if (pdev->is_busmaster)
10496                 pci_set_master(pdev);
10497
10498         spin_lock_irq(&phba->hbalock);
10499         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10500         spin_unlock_irq(&phba->hbalock);
10501
10502         /* Configure and enable interrupt */
10503         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10504         if (intr_mode == LPFC_INTR_ERROR) {
10505                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10506                                 "2824 Cannot re-enable interrupt after "
10507                                 "slot reset.\n");
10508                 return PCI_ERS_RESULT_DISCONNECT;
10509         } else
10510                 phba->intr_mode = intr_mode;
10511
10512         /* Log the current active interrupt mode */
10513         lpfc_log_intr_mode(phba, phba->intr_mode);
10514
10515         return PCI_ERS_RESULT_RECOVERED;
10516 }
10517
10518 /**
10519  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10520  * @pdev: pointer to PCI device
10521  *
10522  * This routine is called from the PCI subsystem for error handling to device
10523  * with SLI-4 interface spec. It is called when kernel error recovery tells
10524  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10525  * error recovery. After this call, traffic can start to flow from this device
10526  * again.
10527  **/
10528 static void
10529 lpfc_io_resume_s4(struct pci_dev *pdev)
10530 {
10531         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10532         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10533
10534         /*
10535          * In case of slot reset, as function reset is performed through
10536          * mailbox command which needs DMA to be enabled, this operation
10537          * has to be moved to the io resume phase. Taking device offline
10538          * will perform the necessary cleanup.
10539          */
10540         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10541                 /* Perform device reset */
10542                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10543                 lpfc_offline(phba);
10544                 lpfc_sli_brdrestart(phba);
10545                 /* Bring the device back online */
10546                 lpfc_online(phba);
10547         }
10548
10549         /* Clean up Advanced Error Reporting (AER) if needed */
10550         if (phba->hba_flag & HBA_AER_ENABLED)
10551                 pci_cleanup_aer_uncorrect_error_status(pdev);
10552 }
10553
10554 /**
10555  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10556  * @pdev: pointer to PCI device
10557  * @pid: pointer to PCI device identifier
10558  *
10559  * This routine is to be registered to the kernel's PCI subsystem. When an
10560  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10561  * at PCI device-specific information of the device and driver to see if the
10562  * driver state that it can support this kind of device. If the match is
10563  * successful, the driver core invokes this routine. This routine dispatches
10564  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10565  * do all the initialization that it needs to do to handle the HBA device
10566  * properly.
10567  *
10568  * Return code
10569  *      0 - driver can claim the device
10570  *      negative value - driver can not claim the device
10571  **/
10572 static int
10573 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10574 {
10575         int rc;
10576         struct lpfc_sli_intf intf;
10577
10578         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10579                 return -ENODEV;
10580
10581         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10582             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10583                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10584         else
10585                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10586
10587         return rc;
10588 }
10589
10590 /**
10591  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10592  * @pdev: pointer to PCI device
10593  *
10594  * This routine is to be registered to the kernel's PCI subsystem. When an
10595  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10596  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10597  * remove routine, which will perform all the necessary cleanup for the
10598  * device to be removed from the PCI subsystem properly.
10599  **/
10600 static void
10601 lpfc_pci_remove_one(struct pci_dev *pdev)
10602 {
10603         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10604         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10605
10606         switch (phba->pci_dev_grp) {
10607         case LPFC_PCI_DEV_LP:
10608                 lpfc_pci_remove_one_s3(pdev);
10609                 break;
10610         case LPFC_PCI_DEV_OC:
10611                 lpfc_pci_remove_one_s4(pdev);
10612                 break;
10613         default:
10614                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10615                                 "1424 Invalid PCI device group: 0x%x\n",
10616                                 phba->pci_dev_grp);
10617                 break;
10618         }
10619         return;
10620 }
10621
10622 /**
10623  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10624  * @pdev: pointer to PCI device
10625  * @msg: power management message
10626  *
10627  * This routine is to be registered to the kernel's PCI subsystem to support
10628  * system Power Management (PM). When PM invokes this method, it dispatches
10629  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10630  * suspend the device.
10631  *
10632  * Return code
10633  *      0 - driver suspended the device
10634  *      Error otherwise
10635  **/
10636 static int
10637 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10638 {
10639         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10640         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10641         int rc = -ENODEV;
10642
10643         switch (phba->pci_dev_grp) {
10644         case LPFC_PCI_DEV_LP:
10645                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10646                 break;
10647         case LPFC_PCI_DEV_OC:
10648                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10649                 break;
10650         default:
10651                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10652                                 "1425 Invalid PCI device group: 0x%x\n",
10653                                 phba->pci_dev_grp);
10654                 break;
10655         }
10656         return rc;
10657 }
10658
10659 /**
10660  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10661  * @pdev: pointer to PCI device
10662  *
10663  * This routine is to be registered to the kernel's PCI subsystem to support
10664  * system Power Management (PM). When PM invokes this method, it dispatches
10665  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10666  * resume the device.
10667  *
10668  * Return code
10669  *      0 - driver suspended the device
10670  *      Error otherwise
10671  **/
10672 static int
10673 lpfc_pci_resume_one(struct pci_dev *pdev)
10674 {
10675         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10676         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10677         int rc = -ENODEV;
10678
10679         switch (phba->pci_dev_grp) {
10680         case LPFC_PCI_DEV_LP:
10681                 rc = lpfc_pci_resume_one_s3(pdev);
10682                 break;
10683         case LPFC_PCI_DEV_OC:
10684                 rc = lpfc_pci_resume_one_s4(pdev);
10685                 break;
10686         default:
10687                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10688                                 "1426 Invalid PCI device group: 0x%x\n",
10689                                 phba->pci_dev_grp);
10690                 break;
10691         }
10692         return rc;
10693 }
10694
10695 /**
10696  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10697  * @pdev: pointer to PCI device.
10698  * @state: the current PCI connection state.
10699  *
10700  * This routine is registered to the PCI subsystem for error handling. This
10701  * function is called by the PCI subsystem after a PCI bus error affecting
10702  * this device has been detected. When this routine is invoked, it dispatches
10703  * the action to the proper SLI-3 or SLI-4 device error detected handling
10704  * routine, which will perform the proper error detected operation.
10705  *
10706  * Return codes
10707  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10708  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10709  **/
10710 static pci_ers_result_t
10711 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10712 {
10713         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10714         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10715         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10716
10717         switch (phba->pci_dev_grp) {
10718         case LPFC_PCI_DEV_LP:
10719                 rc = lpfc_io_error_detected_s3(pdev, state);
10720                 break;
10721         case LPFC_PCI_DEV_OC:
10722                 rc = lpfc_io_error_detected_s4(pdev, state);
10723                 break;
10724         default:
10725                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10726                                 "1427 Invalid PCI device group: 0x%x\n",
10727                                 phba->pci_dev_grp);
10728                 break;
10729         }
10730         return rc;
10731 }
10732
10733 /**
10734  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10735  * @pdev: pointer to PCI device.
10736  *
10737  * This routine is registered to the PCI subsystem for error handling. This
10738  * function is called after PCI bus has been reset to restart the PCI card
10739  * from scratch, as if from a cold-boot. When this routine is invoked, it
10740  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10741  * routine, which will perform the proper device reset.
10742  *
10743  * Return codes
10744  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10745  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10746  **/
10747 static pci_ers_result_t
10748 lpfc_io_slot_reset(struct pci_dev *pdev)
10749 {
10750         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10751         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10752         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10753
10754         switch (phba->pci_dev_grp) {
10755         case LPFC_PCI_DEV_LP:
10756                 rc = lpfc_io_slot_reset_s3(pdev);
10757                 break;
10758         case LPFC_PCI_DEV_OC:
10759                 rc = lpfc_io_slot_reset_s4(pdev);
10760                 break;
10761         default:
10762                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10763                                 "1428 Invalid PCI device group: 0x%x\n",
10764                                 phba->pci_dev_grp);
10765                 break;
10766         }
10767         return rc;
10768 }
10769
10770 /**
10771  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10772  * @pdev: pointer to PCI device
10773  *
10774  * This routine is registered to the PCI subsystem for error handling. It
10775  * is called when kernel error recovery tells the lpfc driver that it is
10776  * OK to resume normal PCI operation after PCI bus error recovery. When
10777  * this routine is invoked, it dispatches the action to the proper SLI-3
10778  * or SLI-4 device io_resume routine, which will resume the device operation.
10779  **/
10780 static void
10781 lpfc_io_resume(struct pci_dev *pdev)
10782 {
10783         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10784         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10785
10786         switch (phba->pci_dev_grp) {
10787         case LPFC_PCI_DEV_LP:
10788                 lpfc_io_resume_s3(pdev);
10789                 break;
10790         case LPFC_PCI_DEV_OC:
10791                 lpfc_io_resume_s4(pdev);
10792                 break;
10793         default:
10794                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10795                                 "1429 Invalid PCI device group: 0x%x\n",
10796                                 phba->pci_dev_grp);
10797                 break;
10798         }
10799         return;
10800 }
10801
10802 static struct pci_device_id lpfc_id_table[] = {
10803         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10804                 PCI_ANY_ID, PCI_ANY_ID, },
10805         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10806                 PCI_ANY_ID, PCI_ANY_ID, },
10807         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10808                 PCI_ANY_ID, PCI_ANY_ID, },
10809         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10810                 PCI_ANY_ID, PCI_ANY_ID, },
10811         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10812                 PCI_ANY_ID, PCI_ANY_ID, },
10813         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10814                 PCI_ANY_ID, PCI_ANY_ID, },
10815         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10816                 PCI_ANY_ID, PCI_ANY_ID, },
10817         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10818                 PCI_ANY_ID, PCI_ANY_ID, },
10819         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10820                 PCI_ANY_ID, PCI_ANY_ID, },
10821         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10822                 PCI_ANY_ID, PCI_ANY_ID, },
10823         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10824                 PCI_ANY_ID, PCI_ANY_ID, },
10825         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10826                 PCI_ANY_ID, PCI_ANY_ID, },
10827         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10828                 PCI_ANY_ID, PCI_ANY_ID, },
10829         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10830                 PCI_ANY_ID, PCI_ANY_ID, },
10831         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10832                 PCI_ANY_ID, PCI_ANY_ID, },
10833         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10834                 PCI_ANY_ID, PCI_ANY_ID, },
10835         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10836                 PCI_ANY_ID, PCI_ANY_ID, },
10837         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10838                 PCI_ANY_ID, PCI_ANY_ID, },
10839         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10840                 PCI_ANY_ID, PCI_ANY_ID, },
10841         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10842                 PCI_ANY_ID, PCI_ANY_ID, },
10843         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10844                 PCI_ANY_ID, PCI_ANY_ID, },
10845         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10846                 PCI_ANY_ID, PCI_ANY_ID, },
10847         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10848                 PCI_ANY_ID, PCI_ANY_ID, },
10849         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10850                 PCI_ANY_ID, PCI_ANY_ID, },
10851         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10852                 PCI_ANY_ID, PCI_ANY_ID, },
10853         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10854                 PCI_ANY_ID, PCI_ANY_ID, },
10855         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10856                 PCI_ANY_ID, PCI_ANY_ID, },
10857         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10858                 PCI_ANY_ID, PCI_ANY_ID, },
10859         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10860                 PCI_ANY_ID, PCI_ANY_ID, },
10861         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10862                 PCI_ANY_ID, PCI_ANY_ID, },
10863         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10864                 PCI_ANY_ID, PCI_ANY_ID, },
10865         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10866                 PCI_ANY_ID, PCI_ANY_ID, },
10867         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10868                 PCI_ANY_ID, PCI_ANY_ID, },
10869         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10870                 PCI_ANY_ID, PCI_ANY_ID, },
10871         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10872                 PCI_ANY_ID, PCI_ANY_ID, },
10873         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10874                 PCI_ANY_ID, PCI_ANY_ID, },
10875         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10876                 PCI_ANY_ID, PCI_ANY_ID, },
10877         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10878                 PCI_ANY_ID, PCI_ANY_ID, },
10879         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10880                 PCI_ANY_ID, PCI_ANY_ID, },
10881         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10882                 PCI_ANY_ID, PCI_ANY_ID, },
10883         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10884                 PCI_ANY_ID, PCI_ANY_ID, },
10885         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10886                 PCI_ANY_ID, PCI_ANY_ID, },
10887         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10888                 PCI_ANY_ID, PCI_ANY_ID, },
10889         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10890                 PCI_ANY_ID, PCI_ANY_ID, },
10891         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10892                 PCI_ANY_ID, PCI_ANY_ID, },
10893         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
10894                 PCI_ANY_ID, PCI_ANY_ID, },
10895         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
10896                 PCI_ANY_ID, PCI_ANY_ID, },
10897         { 0 }
10898 };
10899
10900 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10901
10902 static const struct pci_error_handlers lpfc_err_handler = {
10903         .error_detected = lpfc_io_error_detected,
10904         .slot_reset = lpfc_io_slot_reset,
10905         .resume = lpfc_io_resume,
10906 };
10907
10908 static struct pci_driver lpfc_driver = {
10909         .name           = LPFC_DRIVER_NAME,
10910         .id_table       = lpfc_id_table,
10911         .probe          = lpfc_pci_probe_one,
10912         .remove         = lpfc_pci_remove_one,
10913         .suspend        = lpfc_pci_suspend_one,
10914         .resume         = lpfc_pci_resume_one,
10915         .err_handler    = &lpfc_err_handler,
10916 };
10917
10918 static const struct file_operations lpfc_mgmt_fop = {
10919         .owner = THIS_MODULE,
10920 };
10921
10922 static struct miscdevice lpfc_mgmt_dev = {
10923         .minor = MISC_DYNAMIC_MINOR,
10924         .name = "lpfcmgmt",
10925         .fops = &lpfc_mgmt_fop,
10926 };
10927
10928 /**
10929  * lpfc_init - lpfc module initialization routine
10930  *
10931  * This routine is to be invoked when the lpfc module is loaded into the
10932  * kernel. The special kernel macro module_init() is used to indicate the
10933  * role of this routine to the kernel as lpfc module entry point.
10934  *
10935  * Return codes
10936  *   0 - successful
10937  *   -ENOMEM - FC attach transport failed
10938  *   all others - failed
10939  */
10940 static int __init
10941 lpfc_init(void)
10942 {
10943         int cpu;
10944         int error = 0;
10945
10946         printk(LPFC_MODULE_DESC "\n");
10947         printk(LPFC_COPYRIGHT "\n");
10948
10949         error = misc_register(&lpfc_mgmt_dev);
10950         if (error)
10951                 printk(KERN_ERR "Could not register lpfcmgmt device, "
10952                         "misc_register returned with status %d", error);
10953
10954         if (lpfc_enable_npiv) {
10955                 lpfc_transport_functions.vport_create = lpfc_vport_create;
10956                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10957         }
10958         lpfc_transport_template =
10959                                 fc_attach_transport(&lpfc_transport_functions);
10960         if (lpfc_transport_template == NULL)
10961                 return -ENOMEM;
10962         if (lpfc_enable_npiv) {
10963                 lpfc_vport_transport_template =
10964                         fc_attach_transport(&lpfc_vport_transport_functions);
10965                 if (lpfc_vport_transport_template == NULL) {
10966                         fc_release_transport(lpfc_transport_template);
10967                         return -ENOMEM;
10968                 }
10969         }
10970
10971         /* Initialize in case vector mapping is needed */
10972         lpfc_used_cpu = NULL;
10973         lpfc_present_cpu = 0;
10974         for_each_present_cpu(cpu)
10975                 lpfc_present_cpu++;
10976
10977         error = pci_register_driver(&lpfc_driver);
10978         if (error) {
10979                 fc_release_transport(lpfc_transport_template);
10980                 if (lpfc_enable_npiv)
10981                         fc_release_transport(lpfc_vport_transport_template);
10982         }
10983
10984         return error;
10985 }
10986
10987 /**
10988  * lpfc_exit - lpfc module removal routine
10989  *
10990  * This routine is invoked when the lpfc module is removed from the kernel.
10991  * The special kernel macro module_exit() is used to indicate the role of
10992  * this routine to the kernel as lpfc module exit point.
10993  */
10994 static void __exit
10995 lpfc_exit(void)
10996 {
10997         misc_deregister(&lpfc_mgmt_dev);
10998         pci_unregister_driver(&lpfc_driver);
10999         fc_release_transport(lpfc_transport_template);
11000         if (lpfc_enable_npiv)
11001                 fc_release_transport(lpfc_vport_transport_template);
11002         if (_dump_buf_data) {
11003                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11004                                 "_dump_buf_data at 0x%p\n",
11005                                 (1L << _dump_buf_data_order), _dump_buf_data);
11006                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11007         }
11008
11009         if (_dump_buf_dif) {
11010                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11011                                 "_dump_buf_dif at 0x%p\n",
11012                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
11013                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11014         }
11015         kfree(lpfc_used_cpu);
11016 }
11017
11018 module_init(lpfc_init);
11019 module_exit(lpfc_exit);
11020 MODULE_LICENSE("GPL");
11021 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11022 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11023 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);