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) 2004-2015 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 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  84
  85 static struct scsi_transport_template *lpfc_transport_template = NULL;
  86 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  87 static DEFINE_IDR(lpfc_hba_index);
  88
  89 /**
  90  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  91  * @phba: pointer to lpfc hba data structure.
  92  *
  93  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  94  * mailbox command. It retrieves the revision information from the HBA and
  95  * collects the Vital Product Data (VPD) about the HBA for preparing the
  96  * configuration of the HBA.
  97  *
  98  * Return codes:
  99  *   0 - success.
 100  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 101  *   Any other value - indicates an error.
 102  **/
 103 int
 104 lpfc_config_port_prep(struct lpfc_hba *phba)
 105 {
 106         lpfc_vpd_t *vp = &phba->vpd;
 107         int i = 0, rc;
 108         LPFC_MBOXQ_t *pmb;
 109         MAILBOX_t *mb;
 110         char *lpfc_vpd_data = NULL;
 111         uint16_t offset = 0;
 112         static char licensed[56] =
 113                     "key unlock for use with gnu public licensed code only\0";
 114         static int init_key = 1;
 115
 116         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 117         if (!pmb) {
 118                 phba->link_state = LPFC_HBA_ERROR;
 119                 return -ENOMEM;
 120         }
 121
 122         mb = &pmb->u.mb;
 123         phba->link_state = LPFC_INIT_MBX_CMDS;
 124
 125         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 126                 if (init_key) {
 127                         uint32_t *ptext = (uint32_t *) licensed;
 128
 129                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 130                                 *ptext = cpu_to_be32(*ptext);
 131                         init_key = 0;
 132                 }
 133
 134                 lpfc_read_nv(phba, pmb);
 135                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 136                         sizeof (mb->un.varRDnvp.rsvd3));
 137                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 138                          sizeof (licensed));
 139
 140                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 141
 142                 if (rc != MBX_SUCCESS) {
 143                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 144                                         "0324 Config Port initialization "
 145                                         "error, mbxCmd x%x READ_NVPARM, "
 146                                         "mbxStatus x%x\n",
 147                                         mb->mbxCommand, mb->mbxStatus);
 148                         mempool_free(pmb, phba->mbox_mem_pool);
 149                         return -ERESTART;
 150                 }
 151                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 152                        sizeof(phba->wwnn));
 153                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 154                        sizeof(phba->wwpn));
 155         }
 156
 157         phba->sli3_options = 0x0;
 158
 159         /* Setup and issue mailbox READ REV command */
 160         lpfc_read_rev(phba, pmb);
 161         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 162         if (rc != MBX_SUCCESS) {
 163                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 164                                 "0439 Adapter failed to init, mbxCmd x%x "
 165                                 "READ_REV, mbxStatus x%x\n",
 166                                 mb->mbxCommand, mb->mbxStatus);
 167                 mempool_free( pmb, phba->mbox_mem_pool);
 168                 return -ERESTART;
 169         }
 170
 171
 172         /*
 173          * The value of rr must be 1 since the driver set the cv field to 1.
 174          * This setting requires the FW to set all revision fields.
 175          */
 176         if (mb->un.varRdRev.rr == 0) {
 177                 vp->rev.rBit = 0;
 178                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 179                                 "0440 Adapter failed to init, READ_REV has "
 180                                 "missing revision information.\n");
 181                 mempool_free(pmb, phba->mbox_mem_pool);
 182                 return -ERESTART;
 183         }
 184
 185         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 186                 mempool_free(pmb, phba->mbox_mem_pool);
 187                 return -EINVAL;
 188         }
 189
 190         /* Save information as VPD data */
 191         vp->rev.rBit = 1;
 192         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 193         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 194         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 195         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 196         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 197         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 198         vp->rev.smRev = mb->un.varRdRev.smRev;
 199         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 200         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 201         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 202         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 203         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 204         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 205         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 206         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 207
 208         /* If the sli feature level is less then 9, we must
 209          * tear down all RPIs and VPIs on link down if NPIV
 210          * is enabled.
 211          */
 212         if (vp->rev.feaLevelHigh < 9)
 213                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 214
 215         if (lpfc_is_LC_HBA(phba->pcidev->device))
 216                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 217                                                 sizeof (phba->RandomData));
 218
 219         /* Get adapter VPD information */
 220         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 221         if (!lpfc_vpd_data)
 222                 goto out_free_mbox;
 223         do {
 224                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 225                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 226
 227                 if (rc != MBX_SUCCESS) {
 228                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 229                                         "0441 VPD not present on adapter, "
 230                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 231                                         mb->mbxCommand, mb->mbxStatus);
 232                         mb->un.varDmp.word_cnt = 0;
 233                 }
 234                 /* dump mem may return a zero when finished or we got a
 235                  * mailbox error, either way we are done.
 236                  */
 237                 if (mb->un.varDmp.word_cnt == 0)
 238                         break;
 239                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 240                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 241                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 242                                       lpfc_vpd_data + offset,
 243                                       mb->un.varDmp.word_cnt);
 244                 offset += mb->un.varDmp.word_cnt;
 245         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 246         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 247
 248         kfree(lpfc_vpd_data);
 249 out_free_mbox:
 250         mempool_free(pmb, phba->mbox_mem_pool);
 251         return 0;
 252 }
 253
 254 /**
 255  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 256  * @phba: pointer to lpfc hba data structure.
 257  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 258  *
 259  * This is the completion handler for driver's configuring asynchronous event
 260  * mailbox command to the device. If the mailbox command returns successfully,
 261  * it will set internal async event support flag to 1; otherwise, it will
 262  * set internal async event support flag to 0.
 263  **/
 264 static void
 265 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 266 {
 267         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 268                 phba->temp_sensor_support = 1;
 269         else
 270                 phba->temp_sensor_support = 0;
 271         mempool_free(pmboxq, phba->mbox_mem_pool);
 272         return;
 273 }
 274
 275 /**
 276  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 277  * @phba: pointer to lpfc hba data structure.
 278  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 279  *
 280  * This is the completion handler for dump mailbox command for getting
 281  * wake up parameters. When this command complete, the response contain
 282  * Option rom version of the HBA. This function translate the version number
 283  * into a human readable string and store it in OptionROMVersion.
 284  **/
 285 static void
 286 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 287 {
 288         struct prog_id *prg;
 289         uint32_t prog_id_word;
 290         char dist = ' ';
 291         /* character array used for decoding dist type. */
 292         char dist_char[] = "nabx";
 293
 294         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 295                 mempool_free(pmboxq, phba->mbox_mem_pool);
 296                 return;
 297         }
 298
 299         prg = (struct prog_id *) &prog_id_word;
 300
 301         /* word 7 contain option rom version */
 302         prog_id_word = pmboxq->u.mb.un.varWords[7];
 303
 304         /* Decode the Option rom version word to a readable string */
 305         if (prg->dist < 4)
 306                 dist = dist_char[prg->dist];
 307
 308         if ((prg->dist == 3) && (prg->num == 0))
 309                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 310                         prg->ver, prg->rev, prg->lev);
 311         else
 312                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 313                         prg->ver, prg->rev, prg->lev,
 314                         dist, prg->num);
 315         mempool_free(pmboxq, phba->mbox_mem_pool);
 316         return;
 317 }
 318
 319 /**
 320  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 321  *      cfg_soft_wwnn, cfg_soft_wwpn
 322  * @vport: pointer to lpfc vport data structure.
 323  *
 324  *
 325  * Return codes
 326  *   None.
 327  **/
 328 void
 329 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 330 {
 331         /* If the soft name exists then update it using the service params */
 332         if (vport->phba->cfg_soft_wwnn)
 333                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 334                            vport->fc_sparam.nodeName.u.wwn);
 335         if (vport->phba->cfg_soft_wwpn)
 336                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 337                            vport->fc_sparam.portName.u.wwn);
 338
 339         /*
 340          * If the name is empty or there exists a soft name
 341          * then copy the service params name, otherwise use the fc name
 342          */
 343         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 344                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 345                         sizeof(struct lpfc_name));
 346         else
 347                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 348                         sizeof(struct lpfc_name));
 349
 350         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 351                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 352                         sizeof(struct lpfc_name));
 353         else
 354                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 355                         sizeof(struct lpfc_name));
 356 }
 357
 358 /**
 359  * lpfc_config_port_post - Perform lpfc initialization after config port
 360  * @phba: pointer to lpfc hba data structure.
 361  *
 362  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 363  * command call. It performs all internal resource and state setups on the
 364  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 365  * ELS ring timers, etc.
 366  *
 367  * Return codes
 368  *   0 - success.
 369  *   Any other value - error.
 370  **/
 371 int
 372 lpfc_config_port_post(struct lpfc_hba *phba)
 373 {
 374         struct lpfc_vport *vport = phba->pport;
 375         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 376         LPFC_MBOXQ_t *pmb;
 377         MAILBOX_t *mb;
 378         struct lpfc_dmabuf *mp;
 379         struct lpfc_sli *psli = &phba->sli;
 380         uint32_t status, timeout;
 381         int i, j;
 382         int rc;
 383
 384         spin_lock_irq(&phba->hbalock);
 385         /*
 386          * If the Config port completed correctly the HBA is not
 387          * over heated any more.
 388          */
 389         if (phba->over_temp_state == HBA_OVER_TEMP)
 390                 phba->over_temp_state = HBA_NORMAL_TEMP;
 391         spin_unlock_irq(&phba->hbalock);
 392
 393         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 394         if (!pmb) {
 395                 phba->link_state = LPFC_HBA_ERROR;
 396                 return -ENOMEM;
 397         }
 398         mb = &pmb->u.mb;
 399
 400         /* Get login parameters for NID.  */
 401         rc = lpfc_read_sparam(phba, pmb, 0);
 402         if (rc) {
 403                 mempool_free(pmb, phba->mbox_mem_pool);
 404                 return -ENOMEM;
 405         }
 406
 407         pmb->vport = vport;
 408         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 409                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 410                                 "0448 Adapter failed init, mbxCmd x%x "
 411                                 "READ_SPARM mbxStatus x%x\n",
 412                                 mb->mbxCommand, mb->mbxStatus);
 413                 phba->link_state = LPFC_HBA_ERROR;
 414                 mp = (struct lpfc_dmabuf *) pmb->context1;
 415                 mempool_free(pmb, phba->mbox_mem_pool);
 416                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 417                 kfree(mp);
 418                 return -EIO;
 419         }
 420
 421         mp = (struct lpfc_dmabuf *) pmb->context1;
 422
 423         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 424         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 425         kfree(mp);
 426         pmb->context1 = NULL;
 427         lpfc_update_vport_wwn(vport);
 428
 429         /* Update the fc_host data structures with new wwn. */
 430         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 431         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 432         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 433
 434         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 435         /* This should be consolidated into parse_vpd ? - mr */
 436         if (phba->SerialNumber[0] == 0) {
 437                 uint8_t *outptr;
 438
 439                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 440                 for (i = 0; i < 12; i++) {
 441                         status = *outptr++;
 442                         j = ((status & 0xf0) >> 4);
 443                         if (j <= 9)
 444                                 phba->SerialNumber[i] =
 445                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 446                         else
 447                                 phba->SerialNumber[i] =
 448                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 449                         i++;
 450                         j = (status & 0xf);
 451                         if (j <= 9)
 452                                 phba->SerialNumber[i] =
 453                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 454                         else
 455                                 phba->SerialNumber[i] =
 456                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 457                 }
 458         }
 459
 460         lpfc_read_config(phba, pmb);
 461         pmb->vport = vport;
 462         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 463                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 464                                 "0453 Adapter failed to init, mbxCmd x%x "
 465                                 "READ_CONFIG, mbxStatus x%x\n",
 466                                 mb->mbxCommand, mb->mbxStatus);
 467                 phba->link_state = LPFC_HBA_ERROR;
 468                 mempool_free( pmb, phba->mbox_mem_pool);
 469                 return -EIO;
 470         }
 471
 472         /* Check if the port is disabled */
 473         lpfc_sli_read_link_ste(phba);
 474
 475         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 476         i = (mb->un.varRdConfig.max_xri + 1);
 477         if (phba->cfg_hba_queue_depth > i) {
 478                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 479                                 "3359 HBA queue depth changed from %d to %d\n",
 480                                 phba->cfg_hba_queue_depth, i);
 481                 phba->cfg_hba_queue_depth = i;
 482         }
 483
 484         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 485         i = (mb->un.varRdConfig.max_xri >> 3);
 486         if (phba->pport->cfg_lun_queue_depth > i) {
 487                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 488                                 "3360 LUN queue depth changed from %d to %d\n",
 489                                 phba->pport->cfg_lun_queue_depth, i);
 490                 phba->pport->cfg_lun_queue_depth = i;
 491         }
 492
 493         phba->lmt = mb->un.varRdConfig.lmt;
 494
 495         /* Get the default values for Model Name and Description */
 496         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 497
 498         phba->link_state = LPFC_LINK_DOWN;
 499
 500         /* Only process IOCBs on ELS ring till hba_state is READY */
 501         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 502                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 503         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 504                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 505         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 506                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 507
 508         /* Post receive buffers for desired rings */
 509         if (phba->sli_rev != 3)
 510                 lpfc_post_rcv_buf(phba);
 511
 512         /*
 513          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 514          */
 515         if (phba->intr_type == MSIX) {
 516                 rc = lpfc_config_msi(phba, pmb);
 517                 if (rc) {
 518                         mempool_free(pmb, phba->mbox_mem_pool);
 519                         return -EIO;
 520                 }
 521                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 522                 if (rc != MBX_SUCCESS) {
 523                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 524                                         "0352 Config MSI mailbox command "
 525                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 526                                         pmb->u.mb.mbxCommand,
 527                                         pmb->u.mb.mbxStatus);
 528                         mempool_free(pmb, phba->mbox_mem_pool);
 529                         return -EIO;
 530                 }
 531         }
 532
 533         spin_lock_irq(&phba->hbalock);
 534         /* Initialize ERATT handling flag */
 535         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 536
 537         /* Enable appropriate host interrupts */
 538         if (lpfc_readl(phba->HCregaddr, &status)) {
 539                 spin_unlock_irq(&phba->hbalock);
 540                 return -EIO;
 541         }
 542         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 543         if (psli->num_rings > 0)
 544                 status |= HC_R0INT_ENA;
 545         if (psli->num_rings > 1)
 546                 status |= HC_R1INT_ENA;
 547         if (psli->num_rings > 2)
 548                 status |= HC_R2INT_ENA;
 549         if (psli->num_rings > 3)
 550                 status |= HC_R3INT_ENA;
 551
 552         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 553             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 554                 status &= ~(HC_R0INT_ENA);
 555
 556         writel(status, phba->HCregaddr);
 557         readl(phba->HCregaddr); /* flush */
 558         spin_unlock_irq(&phba->hbalock);
 559
 560         /* Set up ring-0 (ELS) timer */
 561         timeout = phba->fc_ratov * 2;
 562         mod_timer(&vport->els_tmofunc,
 563                   jiffies + msecs_to_jiffies(1000 * timeout));
 564         /* Set up heart beat (HB) timer */
 565         mod_timer(&phba->hb_tmofunc,
 566                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 567         phba->hb_outstanding = 0;
 568         phba->last_completion_time = jiffies;
 569         /* Set up error attention (ERATT) polling timer */
 570         mod_timer(&phba->eratt_poll,
 571                   jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
 572
 573         if (phba->hba_flag & LINK_DISABLED) {
 574                 lpfc_printf_log(phba,
 575                         KERN_ERR, LOG_INIT,
 576                         "2598 Adapter Link is disabled.\n");
 577                 lpfc_down_link(phba, pmb);
 578                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 579                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 580                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 581                         lpfc_printf_log(phba,
 582                         KERN_ERR, LOG_INIT,
 583                         "2599 Adapter failed to issue DOWN_LINK"
 584                         " mbox command rc 0x%x\n", rc);
 585
 586                         mempool_free(pmb, phba->mbox_mem_pool);
 587                         return -EIO;
 588                 }
 589         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 590                 mempool_free(pmb, phba->mbox_mem_pool);
 591                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 592                 if (rc)
 593                         return rc;
 594         }
 595         /* MBOX buffer will be freed in mbox compl */
 596         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 597         if (!pmb) {
 598                 phba->link_state = LPFC_HBA_ERROR;
 599                 return -ENOMEM;
 600         }
 601
 602         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 603         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 604         pmb->vport = phba->pport;
 605         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 606
 607         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 608                 lpfc_printf_log(phba,
 609                                 KERN_ERR,
 610                                 LOG_INIT,
 611                                 "0456 Adapter failed to issue "
 612                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 613                                 rc);
 614                 mempool_free(pmb, phba->mbox_mem_pool);
 615         }
 616
 617         /* Get Option rom version */
 618         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 619         if (!pmb) {
 620                 phba->link_state = LPFC_HBA_ERROR;
 621                 return -ENOMEM;
 622         }
 623
 624         lpfc_dump_wakeup_param(phba, pmb);
 625         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 626         pmb->vport = phba->pport;
 627         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 628
 629         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 630                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 631                                 "to get Option ROM version status x%x\n", rc);
 632                 mempool_free(pmb, phba->mbox_mem_pool);
 633         }
 634
 635         return 0;
 636 }
 637
 638 /**
 639  * lpfc_hba_init_link - Initialize the FC link
 640  * @phba: pointer to lpfc hba data structure.
 641  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 642  *
 643  * This routine will issue the INIT_LINK mailbox command call.
 644  * It is available to other drivers through the lpfc_hba data
 645  * structure for use as a delayed link up mechanism with the
 646  * module parameter lpfc_suppress_link_up.
 647  *
 648  * Return code
 649  *              0 - success
 650  *              Any other value - error
 651  **/
 652 static int
 653 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 654 {
 655         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 656 }
 657
 658 /**
 659  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 660  * @phba: pointer to lpfc hba data structure.
 661  * @fc_topology: desired fc topology.
 662  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 663  *
 664  * This routine will issue the INIT_LINK mailbox command call.
 665  * It is available to other drivers through the lpfc_hba data
 666  * structure for use as a delayed link up mechanism with the
 667  * module parameter lpfc_suppress_link_up.
 668  *
 669  * Return code
 670  *              0 - success
 671  *              Any other value - error
 672  **/
 673 int
 674 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 675                                uint32_t flag)
 676 {
 677         struct lpfc_vport *vport = phba->pport;
 678         LPFC_MBOXQ_t *pmb;
 679         MAILBOX_t *mb;
 680         int rc;
 681
 682         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 683         if (!pmb) {
 684                 phba->link_state = LPFC_HBA_ERROR;
 685                 return -ENOMEM;
 686         }
 687         mb = &pmb->u.mb;
 688         pmb->vport = vport;
 689
 690         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 691             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 692              !(phba->lmt & LMT_1Gb)) ||
 693             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 694              !(phba->lmt & LMT_2Gb)) ||
 695             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 696              !(phba->lmt & LMT_4Gb)) ||
 697             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 698              !(phba->lmt & LMT_8Gb)) ||
 699             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 700              !(phba->lmt & LMT_10Gb)) ||
 701             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 702              !(phba->lmt & LMT_16Gb)) ||
 703             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 704              !(phba->lmt & LMT_32Gb))) {
 705                 /* Reset link speed to auto */
 706                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 707                         "1302 Invalid speed for this board:%d "
 708                         "Reset link speed to auto.\n",
 709                         phba->cfg_link_speed);
 710                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 711         }
 712         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 713         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 714         if (phba->sli_rev < LPFC_SLI_REV4)
 715                 lpfc_set_loopback_flag(phba);
 716         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 717         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 718                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 719                         "0498 Adapter failed to init, mbxCmd x%x "
 720                         "INIT_LINK, mbxStatus x%x\n",
 721                         mb->mbxCommand, mb->mbxStatus);
 722                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 723                         /* Clear all interrupt enable conditions */
 724                         writel(0, phba->HCregaddr);
 725                         readl(phba->HCregaddr); /* flush */
 726                         /* Clear all pending interrupts */
 727                         writel(0xffffffff, phba->HAregaddr);
 728                         readl(phba->HAregaddr); /* flush */
 729                 }
 730                 phba->link_state = LPFC_HBA_ERROR;
 731                 if (rc != MBX_BUSY || flag == MBX_POLL)
 732                         mempool_free(pmb, phba->mbox_mem_pool);
 733                 return -EIO;
 734         }
 735         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 736         if (flag == MBX_POLL)
 737                 mempool_free(pmb, phba->mbox_mem_pool);
 738
 739         return 0;
 740 }
 741
 742 /**
 743  * lpfc_hba_down_link - this routine downs the FC link
 744  * @phba: pointer to lpfc hba data structure.
 745  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 746  *
 747  * This routine will issue the DOWN_LINK mailbox command call.
 748  * It is available to other drivers through the lpfc_hba data
 749  * structure for use to stop the link.
 750  *
 751  * Return code
 752  *              0 - success
 753  *              Any other value - error
 754  **/
 755 static int
 756 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 757 {
 758         LPFC_MBOXQ_t *pmb;
 759         int rc;
 760
 761         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 762         if (!pmb) {
 763                 phba->link_state = LPFC_HBA_ERROR;
 764                 return -ENOMEM;
 765         }
 766
 767         lpfc_printf_log(phba,
 768                 KERN_ERR, LOG_INIT,
 769                 "0491 Adapter Link is disabled.\n");
 770         lpfc_down_link(phba, pmb);
 771         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 772         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 773         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 774                 lpfc_printf_log(phba,
 775                 KERN_ERR, LOG_INIT,
 776                 "2522 Adapter failed to issue DOWN_LINK"
 777                 " mbox command rc 0x%x\n", rc);
 778
 779                 mempool_free(pmb, phba->mbox_mem_pool);
 780                 return -EIO;
 781         }
 782         if (flag == MBX_POLL)
 783                 mempool_free(pmb, phba->mbox_mem_pool);
 784
 785         return 0;
 786 }
 787
 788 /**
 789  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 790  * @phba: pointer to lpfc HBA data structure.
 791  *
 792  * This routine will do LPFC uninitialization before the HBA is reset when
 793  * bringing down the SLI Layer.
 794  *
 795  * Return codes
 796  *   0 - success.
 797  *   Any other value - error.
 798  **/
 799 int
 800 lpfc_hba_down_prep(struct lpfc_hba *phba)
 801 {
 802         struct lpfc_vport **vports;
 803         int i;
 804
 805         if (phba->sli_rev <= LPFC_SLI_REV3) {
 806                 /* Disable interrupts */
 807                 writel(0, phba->HCregaddr);
 808                 readl(phba->HCregaddr); /* flush */
 809         }
 810
 811         if (phba->pport->load_flag & FC_UNLOADING)
 812                 lpfc_cleanup_discovery_resources(phba->pport);
 813         else {
 814                 vports = lpfc_create_vport_work_array(phba);
 815                 if (vports != NULL)
 816                         for (i = 0; i <= phba->max_vports &&
 817                                 vports[i] != NULL; i++)
 818                                 lpfc_cleanup_discovery_resources(vports[i]);
 819                 lpfc_destroy_vport_work_array(phba, vports);
 820         }
 821         return 0;
 822 }
 823
 824 /**
 825  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 826  * rspiocb which got deferred
 827  *
 828  * @phba: pointer to lpfc HBA data structure.
 829  *
 830  * This routine will cleanup completed slow path events after HBA is reset
 831  * when bringing down the SLI Layer.
 832  *
 833  *
 834  * Return codes
 835  *   void.
 836  **/
 837 static void
 838 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 839 {
 840         struct lpfc_iocbq *rspiocbq;
 841         struct hbq_dmabuf *dmabuf;
 842         struct lpfc_cq_event *cq_event;
 843
 844         spin_lock_irq(&phba->hbalock);
 845         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 846         spin_unlock_irq(&phba->hbalock);
 847
 848         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 849                 /* Get the response iocb from the head of work queue */
 850                 spin_lock_irq(&phba->hbalock);
 851                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 852                                  cq_event, struct lpfc_cq_event, list);
 853                 spin_unlock_irq(&phba->hbalock);
 854
 855                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 856                 case CQE_CODE_COMPL_WQE:
 857                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 858                                                  cq_event);
 859                         lpfc_sli_release_iocbq(phba, rspiocbq);
 860                         break;
 861                 case CQE_CODE_RECEIVE:
 862                 case CQE_CODE_RECEIVE_V1:
 863                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 864                                               cq_event);
 865                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 866                 }
 867         }
 868 }
 869
 870 /**
 871  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 872  * @phba: pointer to lpfc HBA data structure.
 873  *
 874  * This routine will cleanup posted ELS buffers after the HBA is reset
 875  * when bringing down the SLI Layer.
 876  *
 877  *
 878  * Return codes
 879  *   void.
 880  **/
 881 static void
 882 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 883 {
 884         struct lpfc_sli *psli = &phba->sli;
 885         struct lpfc_sli_ring *pring;
 886         struct lpfc_dmabuf *mp, *next_mp;
 887         LIST_HEAD(buflist);
 888         int count;
 889
 890         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 891                 lpfc_sli_hbqbuf_free_all(phba);
 892         else {
 893                 /* Cleanup preposted buffers on the ELS ring */
 894                 pring = &psli->ring[LPFC_ELS_RING];
 895                 spin_lock_irq(&phba->hbalock);
 896                 list_splice_init(&pring->postbufq, &buflist);
 897                 spin_unlock_irq(&phba->hbalock);
 898
 899                 count = 0;
 900                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 901                         list_del(&mp->list);
 902                         count++;
 903                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 904                         kfree(mp);
 905                 }
 906
 907                 spin_lock_irq(&phba->hbalock);
 908                 pring->postbufq_cnt -= count;
 909                 spin_unlock_irq(&phba->hbalock);
 910         }
 911 }
 912
 913 /**
 914  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 915  * @phba: pointer to lpfc HBA data structure.
 916  *
 917  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 918  * down the SLI Layer.
 919  *
 920  * Return codes
 921  *   void
 922  **/
 923 static void
 924 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 925 {
 926         struct lpfc_sli *psli = &phba->sli;
 927         struct lpfc_sli_ring *pring;
 928         LIST_HEAD(completions);
 929         int i;
 930
 931         for (i = 0; i < psli->num_rings; i++) {
 932                 pring = &psli->ring[i];
 933                 if (phba->sli_rev >= LPFC_SLI_REV4)
 934                         spin_lock_irq(&pring->ring_lock);
 935                 else
 936                         spin_lock_irq(&phba->hbalock);
 937                 /* At this point in time the HBA is either reset or DOA. Either
 938                  * way, nothing should be on txcmplq as it will NEVER complete.
 939                  */
 940                 list_splice_init(&pring->txcmplq, &completions);
 941                 pring->txcmplq_cnt = 0;
 942
 943                 if (phba->sli_rev >= LPFC_SLI_REV4)
 944                         spin_unlock_irq(&pring->ring_lock);
 945                 else
 946                         spin_unlock_irq(&phba->hbalock);
 947
 948                 /* Cancel all the IOCBs from the completions list */
 949                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 950                                       IOERR_SLI_ABORTED);
 951                 lpfc_sli_abort_iocb_ring(phba, pring);
 952         }
 953 }
 954
 955 /**
 956  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 957         int i;
 958  * @phba: pointer to lpfc HBA data structure.
 959  *
 960  * This routine will do uninitialization after the HBA is reset when bring
 961  * down the SLI Layer.
 962  *
 963  * Return codes
 964  *   0 - success.
 965  *   Any other value - error.
 966  **/
 967 static int
 968 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 969 {
 970         lpfc_hba_free_post_buf(phba);
 971         lpfc_hba_clean_txcmplq(phba);
 972         return 0;
 973 }
 974
 975 /**
 976  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 977  * @phba: pointer to lpfc HBA data structure.
 978  *
 979  * This routine will do uninitialization after the HBA is reset when bring
 980  * down the SLI Layer.
 981  *
 982  * Return codes
 983  *   0 - success.
 984  *   Any other value - error.
 985  **/
 986 static int
 987 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 988 {
 989         struct lpfc_scsi_buf *psb, *psb_next;
 990         LIST_HEAD(aborts);
 991         unsigned long iflag = 0;
 992         struct lpfc_sglq *sglq_entry = NULL;
 993         struct lpfc_sli *psli = &phba->sli;
 994         struct lpfc_sli_ring *pring;
 995
 996         lpfc_hba_free_post_buf(phba);
 997         lpfc_hba_clean_txcmplq(phba);
 998         pring = &psli->ring[LPFC_ELS_RING];
 999
1000         /* At this point in time the HBA is either reset or DOA. Either
1001          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1002          * on the lpfc_sgl_list so that it can either be freed if the
1003          * driver is unloading or reposted if the driver is restarting
1004          * the port.
1005          */
1006         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
1007                                         /* scsl_buf_list */
1008         /* abts_sgl_list_lock required because worker thread uses this
1009          * list.
1010          */
1011         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1012         list_for_each_entry(sglq_entry,
1013                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1014                 sglq_entry->state = SGL_FREED;
1015
1016         spin_lock(&pring->ring_lock);
1017         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1018                         &phba->sli4_hba.lpfc_sgl_list);
1019         spin_unlock(&pring->ring_lock);
1020         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1021         /* abts_scsi_buf_list_lock required because worker thread uses this
1022          * list.
1023          */
1024         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1025         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1026                         &aborts);
1027         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1028         spin_unlock_irq(&phba->hbalock);
1029
1030         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1031                 psb->pCmd = NULL;
1032                 psb->status = IOSTAT_SUCCESS;
1033         }
1034         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1035         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1036         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1037
1038         lpfc_sli4_free_sp_events(phba);
1039         return 0;
1040 }
1041
1042 /**
1043  * lpfc_hba_down_post - Wrapper func for hba down post routine
1044  * @phba: pointer to lpfc HBA data structure.
1045  *
1046  * This routine wraps the actual SLI3 or SLI4 routine for performing
1047  * uninitialization after the HBA is reset when bring down the SLI Layer.
1048  *
1049  * Return codes
1050  *   0 - success.
1051  *   Any other value - error.
1052  **/
1053 int
1054 lpfc_hba_down_post(struct lpfc_hba *phba)
1055 {
1056         return (*phba->lpfc_hba_down_post)(phba);
1057 }
1058
1059 /**
1060  * lpfc_hb_timeout - The HBA-timer timeout handler
1061  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1062  *
1063  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1064  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1065  * work-port-events bitmap and the worker thread is notified. This timeout
1066  * event will be used by the worker thread to invoke the actual timeout
1067  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1068  * be performed in the timeout handler and the HBA timeout event bit shall
1069  * be cleared by the worker thread after it has taken the event bitmap out.
1070  **/
1071 static void
1072 lpfc_hb_timeout(unsigned long ptr)
1073 {
1074         struct lpfc_hba *phba;
1075         uint32_t tmo_posted;
1076         unsigned long iflag;
1077
1078         phba = (struct lpfc_hba *)ptr;
1079
1080         /* Check for heart beat timeout conditions */
1081         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1082         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1083         if (!tmo_posted)
1084                 phba->pport->work_port_events |= WORKER_HB_TMO;
1085         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1086
1087         /* Tell the worker thread there is work to do */
1088         if (!tmo_posted)
1089                 lpfc_worker_wake_up(phba);
1090         return;
1091 }
1092
1093 /**
1094  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1095  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1096  *
1097  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1098  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1099  * work-port-events bitmap and the worker thread is notified. This timeout
1100  * event will be used by the worker thread to invoke the actual timeout
1101  * handler routine, lpfc_rrq_handler. Any periodical operations will
1102  * be performed in the timeout handler and the RRQ timeout event bit shall
1103  * be cleared by the worker thread after it has taken the event bitmap out.
1104  **/
1105 static void
1106 lpfc_rrq_timeout(unsigned long ptr)
1107 {
1108         struct lpfc_hba *phba;
1109         unsigned long iflag;
1110
1111         phba = (struct lpfc_hba *)ptr;
1112         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1113         if (!(phba->pport->load_flag & FC_UNLOADING))
1114                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1115         else
1116                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1117         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1118
1119         if (!(phba->pport->load_flag & FC_UNLOADING))
1120                 lpfc_worker_wake_up(phba);
1121 }
1122
1123 /**
1124  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1125  * @phba: pointer to lpfc hba data structure.
1126  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1127  *
1128  * This is the callback function to the lpfc heart-beat mailbox command.
1129  * If configured, the lpfc driver issues the heart-beat mailbox command to
1130  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1131  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1132  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1133  * heart-beat outstanding state. Once the mailbox command comes back and
1134  * no error conditions detected, the heart-beat mailbox command timer is
1135  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1136  * state is cleared for the next heart-beat. If the timer expired with the
1137  * heart-beat outstanding state set, the driver will put the HBA offline.
1138  **/
1139 static void
1140 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1141 {
1142         unsigned long drvr_flag;
1143
1144         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1145         phba->hb_outstanding = 0;
1146         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1147
1148         /* Check and reset heart-beat timer is necessary */
1149         mempool_free(pmboxq, phba->mbox_mem_pool);
1150         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1151                 !(phba->link_state == LPFC_HBA_ERROR) &&
1152                 !(phba->pport->load_flag & FC_UNLOADING))
1153                 mod_timer(&phba->hb_tmofunc,
1154                           jiffies +
1155                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1156         return;
1157 }
1158
1159 /**
1160  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1161  * @phba: pointer to lpfc hba data structure.
1162  *
1163  * This is the actual HBA-timer timeout handler to be invoked by the worker
1164  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1165  * handler performs any periodic operations needed for the device. If such
1166  * periodic event has already been attended to either in the interrupt handler
1167  * or by processing slow-ring or fast-ring events within the HBA-timer
1168  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1169  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1170  * is configured and there is no heart-beat mailbox command outstanding, a
1171  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1172  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1173  * to offline.
1174  **/
1175 void
1176 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1177 {
1178         struct lpfc_vport **vports;
1179         LPFC_MBOXQ_t *pmboxq;
1180         struct lpfc_dmabuf *buf_ptr;
1181         int retval, i;
1182         struct lpfc_sli *psli = &phba->sli;
1183         LIST_HEAD(completions);
1184
1185         vports = lpfc_create_vport_work_array(phba);
1186         if (vports != NULL)
1187                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1188                         lpfc_rcv_seq_check_edtov(vports[i]);
1189                         lpfc_fdmi_num_disc_check(vports[i]);
1190                 }
1191         lpfc_destroy_vport_work_array(phba, vports);
1192
1193         if ((phba->link_state == LPFC_HBA_ERROR) ||
1194                 (phba->pport->load_flag & FC_UNLOADING) ||
1195                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1196                 return;
1197
1198         spin_lock_irq(&phba->pport->work_port_lock);
1199
1200         if (time_after(phba->last_completion_time +
1201                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1202                         jiffies)) {
1203                 spin_unlock_irq(&phba->pport->work_port_lock);
1204                 if (!phba->hb_outstanding)
1205                         mod_timer(&phba->hb_tmofunc,
1206                                 jiffies +
1207                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1208                 else
1209                         mod_timer(&phba->hb_tmofunc,
1210                                 jiffies +
1211                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1212                 return;
1213         }
1214         spin_unlock_irq(&phba->pport->work_port_lock);
1215
1216         if (phba->elsbuf_cnt &&
1217                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1218                 spin_lock_irq(&phba->hbalock);
1219                 list_splice_init(&phba->elsbuf, &completions);
1220                 phba->elsbuf_cnt = 0;
1221                 phba->elsbuf_prev_cnt = 0;
1222                 spin_unlock_irq(&phba->hbalock);
1223
1224                 while (!list_empty(&completions)) {
1225                         list_remove_head(&completions, buf_ptr,
1226                                 struct lpfc_dmabuf, list);
1227                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1228                         kfree(buf_ptr);
1229                 }
1230         }
1231         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1232
1233         /* If there is no heart beat outstanding, issue a heartbeat command */
1234         if (phba->cfg_enable_hba_heartbeat) {
1235                 if (!phba->hb_outstanding) {
1236                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1237                                 (list_empty(&psli->mboxq))) {
1238                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1239                                                         GFP_KERNEL);
1240                                 if (!pmboxq) {
1241                                         mod_timer(&phba->hb_tmofunc,
1242                                                  jiffies +
1243                                                  msecs_to_jiffies(1000 *
1244                                                  LPFC_HB_MBOX_INTERVAL));
1245                                         return;
1246                                 }
1247
1248                                 lpfc_heart_beat(phba, pmboxq);
1249                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1250                                 pmboxq->vport = phba->pport;
1251                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1252                                                 MBX_NOWAIT);
1253
1254                                 if (retval != MBX_BUSY &&
1255                                         retval != MBX_SUCCESS) {
1256                                         mempool_free(pmboxq,
1257                                                         phba->mbox_mem_pool);
1258                                         mod_timer(&phba->hb_tmofunc,
1259                                                 jiffies +
1260                                                 msecs_to_jiffies(1000 *
1261                                                 LPFC_HB_MBOX_INTERVAL));
1262                                         return;
1263                                 }
1264                                 phba->skipped_hb = 0;
1265                                 phba->hb_outstanding = 1;
1266                         } else if (time_before_eq(phba->last_completion_time,
1267                                         phba->skipped_hb)) {
1268                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1269                                         "2857 Last completion time not "
1270                                         " updated in %d ms\n",
1271                                         jiffies_to_msecs(jiffies
1272                                                  - phba->last_completion_time));
1273                         } else
1274                                 phba->skipped_hb = jiffies;
1275
1276                         mod_timer(&phba->hb_tmofunc,
1277                                  jiffies +
1278                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1279                         return;
1280                 } else {
1281                         /*
1282                         * If heart beat timeout called with hb_outstanding set
1283                         * we need to give the hb mailbox cmd a chance to
1284                         * complete or TMO.
1285                         */
1286                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1287                                         "0459 Adapter heartbeat still out"
1288                                         "standing:last compl time was %d ms.\n",
1289                                         jiffies_to_msecs(jiffies
1290                                                  - phba->last_completion_time));
1291                         mod_timer(&phba->hb_tmofunc,
1292                                 jiffies +
1293                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1294                 }
1295         } else {
1296                         mod_timer(&phba->hb_tmofunc,
1297                                 jiffies +
1298                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1299         }
1300 }
1301
1302 /**
1303  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1304  * @phba: pointer to lpfc hba data structure.
1305  *
1306  * This routine is called to bring the HBA offline when HBA hardware error
1307  * other than Port Error 6 has been detected.
1308  **/
1309 static void
1310 lpfc_offline_eratt(struct lpfc_hba *phba)
1311 {
1312         struct lpfc_sli   *psli = &phba->sli;
1313
1314         spin_lock_irq(&phba->hbalock);
1315         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1316         spin_unlock_irq(&phba->hbalock);
1317         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1318
1319         lpfc_offline(phba);
1320         lpfc_reset_barrier(phba);
1321         spin_lock_irq(&phba->hbalock);
1322         lpfc_sli_brdreset(phba);
1323         spin_unlock_irq(&phba->hbalock);
1324         lpfc_hba_down_post(phba);
1325         lpfc_sli_brdready(phba, HS_MBRDY);
1326         lpfc_unblock_mgmt_io(phba);
1327         phba->link_state = LPFC_HBA_ERROR;
1328         return;
1329 }
1330
1331 /**
1332  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1333  * @phba: pointer to lpfc hba data structure.
1334  *
1335  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1336  * other than Port Error 6 has been detected.
1337  **/
1338 void
1339 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1340 {
1341         spin_lock_irq(&phba->hbalock);
1342         phba->link_state = LPFC_HBA_ERROR;
1343         spin_unlock_irq(&phba->hbalock);
1344
1345         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1346         lpfc_offline(phba);
1347         lpfc_hba_down_post(phba);
1348         lpfc_unblock_mgmt_io(phba);
1349 }
1350
1351 /**
1352  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1353  * @phba: pointer to lpfc hba data structure.
1354  *
1355  * This routine is invoked to handle the deferred HBA hardware error
1356  * conditions. This type of error is indicated by HBA by setting ER1
1357  * and another ER bit in the host status register. The driver will
1358  * wait until the ER1 bit clears before handling the error condition.
1359  **/
1360 static void
1361 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1362 {
1363         uint32_t old_host_status = phba->work_hs;
1364         struct lpfc_sli *psli = &phba->sli;
1365
1366         /* If the pci channel is offline, ignore possible errors,
1367          * since we cannot communicate with the pci card anyway.
1368          */
1369         if (pci_channel_offline(phba->pcidev)) {
1370                 spin_lock_irq(&phba->hbalock);
1371                 phba->hba_flag &= ~DEFER_ERATT;
1372                 spin_unlock_irq(&phba->hbalock);
1373                 return;
1374         }
1375
1376         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1377                 "0479 Deferred Adapter Hardware Error "
1378                 "Data: x%x x%x x%x\n",
1379                 phba->work_hs,
1380                 phba->work_status[0], phba->work_status[1]);
1381
1382         spin_lock_irq(&phba->hbalock);
1383         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1384         spin_unlock_irq(&phba->hbalock);
1385
1386
1387         /*
1388          * Firmware stops when it triggred erratt. That could cause the I/Os
1389          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1390          * SCSI layer retry it after re-establishing link.
1391          */
1392         lpfc_sli_abort_fcp_rings(phba);
1393
1394         /*
1395          * There was a firmware error. Take the hba offline and then
1396          * attempt to restart it.
1397          */
1398         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1399         lpfc_offline(phba);
1400
1401         /* Wait for the ER1 bit to clear.*/
1402         while (phba->work_hs & HS_FFER1) {
1403                 msleep(100);
1404                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1405                         phba->work_hs = UNPLUG_ERR ;
1406                         break;
1407                 }
1408                 /* If driver is unloading let the worker thread continue */
1409                 if (phba->pport->load_flag & FC_UNLOADING) {
1410                         phba->work_hs = 0;
1411                         break;
1412                 }
1413         }
1414
1415         /*
1416          * This is to ptrotect against a race condition in which
1417          * first write to the host attention register clear the
1418          * host status register.
1419          */
1420         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1421                 phba->work_hs = old_host_status & ~HS_FFER1;
1422
1423         spin_lock_irq(&phba->hbalock);
1424         phba->hba_flag &= ~DEFER_ERATT;
1425         spin_unlock_irq(&phba->hbalock);
1426         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1427         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1428 }
1429
1430 static void
1431 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1432 {
1433         struct lpfc_board_event_header board_event;
1434         struct Scsi_Host *shost;
1435
1436         board_event.event_type = FC_REG_BOARD_EVENT;
1437         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1438         shost = lpfc_shost_from_vport(phba->pport);
1439         fc_host_post_vendor_event(shost, fc_get_event_number(),
1440                                   sizeof(board_event),
1441                                   (char *) &board_event,
1442                                   LPFC_NL_VENDOR_ID);
1443 }
1444
1445 /**
1446  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1447  * @phba: pointer to lpfc hba data structure.
1448  *
1449  * This routine is invoked to handle the following HBA hardware error
1450  * conditions:
1451  * 1 - HBA error attention interrupt
1452  * 2 - DMA ring index out of range
1453  * 3 - Mailbox command came back as unknown
1454  **/
1455 static void
1456 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1457 {
1458         struct lpfc_vport *vport = phba->pport;
1459         struct lpfc_sli   *psli = &phba->sli;
1460         uint32_t event_data;
1461         unsigned long temperature;
1462         struct temp_event temp_event_data;
1463         struct Scsi_Host  *shost;
1464
1465         /* If the pci channel is offline, ignore possible errors,
1466          * since we cannot communicate with the pci card anyway.
1467          */
1468         if (pci_channel_offline(phba->pcidev)) {
1469                 spin_lock_irq(&phba->hbalock);
1470                 phba->hba_flag &= ~DEFER_ERATT;
1471                 spin_unlock_irq(&phba->hbalock);
1472                 return;
1473         }
1474
1475         /* If resets are disabled then leave the HBA alone and return */
1476         if (!phba->cfg_enable_hba_reset)
1477                 return;
1478
1479         /* Send an internal error event to mgmt application */
1480         lpfc_board_errevt_to_mgmt(phba);
1481
1482         if (phba->hba_flag & DEFER_ERATT)
1483                 lpfc_handle_deferred_eratt(phba);
1484
1485         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1486                 if (phba->work_hs & HS_FFER6)
1487                         /* Re-establishing Link */
1488                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1489                                         "1301 Re-establishing Link "
1490                                         "Data: x%x x%x x%x\n",
1491                                         phba->work_hs, phba->work_status[0],
1492                                         phba->work_status[1]);
1493                 if (phba->work_hs & HS_FFER8)
1494                         /* Device Zeroization */
1495                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1496                                         "2861 Host Authentication device "
1497                                         "zeroization Data:x%x x%x x%x\n",
1498                                         phba->work_hs, phba->work_status[0],
1499                                         phba->work_status[1]);
1500
1501                 spin_lock_irq(&phba->hbalock);
1502                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1503                 spin_unlock_irq(&phba->hbalock);
1504
1505                 /*
1506                 * Firmware stops when it triggled erratt with HS_FFER6.
1507                 * That could cause the I/Os dropped by the firmware.
1508                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1509                 * retry it after re-establishing link.
1510                 */
1511                 lpfc_sli_abort_fcp_rings(phba);
1512
1513                 /*
1514                  * There was a firmware error.  Take the hba offline and then
1515                  * attempt to restart it.
1516                  */
1517                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1518                 lpfc_offline(phba);
1519                 lpfc_sli_brdrestart(phba);
1520                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1521                         lpfc_unblock_mgmt_io(phba);
1522                         return;
1523                 }
1524                 lpfc_unblock_mgmt_io(phba);
1525         } else if (phba->work_hs & HS_CRIT_TEMP) {
1526                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1527                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1528                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1529                 temp_event_data.data = (uint32_t)temperature;
1530
1531                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1532                                 "0406 Adapter maximum temperature exceeded "
1533                                 "(%ld), taking this port offline "
1534                                 "Data: x%x x%x x%x\n",
1535                                 temperature, phba->work_hs,
1536                                 phba->work_status[0], phba->work_status[1]);
1537
1538                 shost = lpfc_shost_from_vport(phba->pport);
1539                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1540                                           sizeof(temp_event_data),
1541                                           (char *) &temp_event_data,
1542                                           SCSI_NL_VID_TYPE_PCI
1543                                           | PCI_VENDOR_ID_EMULEX);
1544
1545                 spin_lock_irq(&phba->hbalock);
1546                 phba->over_temp_state = HBA_OVER_TEMP;
1547                 spin_unlock_irq(&phba->hbalock);
1548                 lpfc_offline_eratt(phba);
1549
1550         } else {
1551                 /* The if clause above forces this code path when the status
1552                  * failure is a value other than FFER6. Do not call the offline
1553                  * twice. This is the adapter hardware error path.
1554                  */
1555                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1556                                 "0457 Adapter Hardware Error "
1557                                 "Data: x%x x%x x%x\n",
1558                                 phba->work_hs,
1559                                 phba->work_status[0], phba->work_status[1]);
1560
1561                 event_data = FC_REG_DUMP_EVENT;
1562                 shost = lpfc_shost_from_vport(vport);
1563                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1564                                 sizeof(event_data), (char *) &event_data,
1565                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1566
1567                 lpfc_offline_eratt(phba);
1568         }
1569         return;
1570 }
1571
1572 /**
1573  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1574  * @phba: pointer to lpfc hba data structure.
1575  * @mbx_action: flag for mailbox shutdown action.
1576  *
1577  * This routine is invoked to perform an SLI4 port PCI function reset in
1578  * response to port status register polling attention. It waits for port
1579  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1580  * During this process, interrupt vectors are freed and later requested
1581  * for handling possible port resource change.
1582  **/
1583 static int
1584 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1585                             bool en_rn_msg)
1586 {
1587         int rc;
1588         uint32_t intr_mode;
1589
1590         /*
1591          * On error status condition, driver need to wait for port
1592          * ready before performing reset.
1593          */
1594         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1595         if (!rc) {
1596                 /* need reset: attempt for port recovery */
1597                 if (en_rn_msg)
1598                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1599                                         "2887 Reset Needed: Attempting Port "
1600                                         "Recovery...\n");
1601                 lpfc_offline_prep(phba, mbx_action);
1602                 lpfc_offline(phba);
1603                 /* release interrupt for possible resource change */
1604                 lpfc_sli4_disable_intr(phba);
1605                 lpfc_sli_brdrestart(phba);
1606                 /* request and enable interrupt */
1607                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1608                 if (intr_mode == LPFC_INTR_ERROR) {
1609                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1610                                         "3175 Failed to enable interrupt\n");
1611                         return -EIO;
1612                 } else {
1613                         phba->intr_mode = intr_mode;
1614                 }
1615                 rc = lpfc_online(phba);
1616                 if (rc == 0)
1617                         lpfc_unblock_mgmt_io(phba);
1618         }
1619         return rc;
1620 }
1621
1622 /**
1623  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1624  * @phba: pointer to lpfc hba data structure.
1625  *
1626  * This routine is invoked to handle the SLI4 HBA hardware error attention
1627  * conditions.
1628  **/
1629 static void
1630 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1631 {
1632         struct lpfc_vport *vport = phba->pport;
1633         uint32_t event_data;
1634         struct Scsi_Host *shost;
1635         uint32_t if_type;
1636         struct lpfc_register portstat_reg = {0};
1637         uint32_t reg_err1, reg_err2;
1638         uint32_t uerrlo_reg, uemasklo_reg;
1639         uint32_t pci_rd_rc1, pci_rd_rc2;
1640         bool en_rn_msg = true;
1641         struct temp_event temp_event_data;
1642         int rc;
1643
1644         /* If the pci channel is offline, ignore possible errors, since
1645          * we cannot communicate with the pci card anyway.
1646          */
1647         if (pci_channel_offline(phba->pcidev))
1648                 return;
1649
1650         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1651         switch (if_type) {
1652         case LPFC_SLI_INTF_IF_TYPE_0:
1653                 pci_rd_rc1 = lpfc_readl(
1654                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1655                                 &uerrlo_reg);
1656                 pci_rd_rc2 = lpfc_readl(
1657                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1658                                 &uemasklo_reg);
1659                 /* consider PCI bus read error as pci_channel_offline */
1660                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1661                         return;
1662                 lpfc_sli4_offline_eratt(phba);
1663                 break;
1664
1665         case LPFC_SLI_INTF_IF_TYPE_2:
1666                 pci_rd_rc1 = lpfc_readl(
1667                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1668                                 &portstat_reg.word0);
1669                 /* consider PCI bus read error as pci_channel_offline */
1670                 if (pci_rd_rc1 == -EIO) {
1671                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1672                                 "3151 PCI bus read access failure: x%x\n",
1673                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1674                         return;
1675                 }
1676                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1677                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1678                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1679                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1680                                 "2889 Port Overtemperature event, "
1681                                 "taking port offline Data: x%x x%x\n",
1682                                 reg_err1, reg_err2);
1683
1684                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1685                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1686                         temp_event_data.data = 0xFFFFFFFF;
1687
1688                         shost = lpfc_shost_from_vport(phba->pport);
1689                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1690                                                   sizeof(temp_event_data),
1691                                                   (char *)&temp_event_data,
1692                                                   SCSI_NL_VID_TYPE_PCI
1693                                                   | PCI_VENDOR_ID_EMULEX);
1694
1695                         spin_lock_irq(&phba->hbalock);
1696                         phba->over_temp_state = HBA_OVER_TEMP;
1697                         spin_unlock_irq(&phba->hbalock);
1698                         lpfc_sli4_offline_eratt(phba);
1699                         return;
1700                 }
1701                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1702                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1703                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1704                                         "3143 Port Down: Firmware Update "
1705                                         "Detected\n");
1706                         en_rn_msg = false;
1707                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1708                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1709                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1710                                         "3144 Port Down: Debug Dump\n");
1711                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1712                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1713                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1714                                         "3145 Port Down: Provisioning\n");
1715
1716                 /* If resets are disabled then leave the HBA alone and return */
1717                 if (!phba->cfg_enable_hba_reset)
1718                         return;
1719
1720                 /* Check port status register for function reset */
1721                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1722                                 en_rn_msg);
1723                 if (rc == 0) {
1724                         /* don't report event on forced debug dump */
1725                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1726                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1727                                 return;
1728                         else
1729                                 break;
1730                 }
1731                 /* fall through for not able to recover */
1732                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1733                                 "3152 Unrecoverable error, bring the port "
1734                                 "offline\n");
1735                 lpfc_sli4_offline_eratt(phba);
1736                 break;
1737         case LPFC_SLI_INTF_IF_TYPE_1:
1738         default:
1739                 break;
1740         }
1741         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1742                         "3123 Report dump event to upper layer\n");
1743         /* Send an internal error event to mgmt application */
1744         lpfc_board_errevt_to_mgmt(phba);
1745
1746         event_data = FC_REG_DUMP_EVENT;
1747         shost = lpfc_shost_from_vport(vport);
1748         fc_host_post_vendor_event(shost, fc_get_event_number(),
1749                                   sizeof(event_data), (char *) &event_data,
1750                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1751 }
1752
1753 /**
1754  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1755  * @phba: pointer to lpfc HBA data structure.
1756  *
1757  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1758  * routine from the API jump table function pointer from the lpfc_hba struct.
1759  *
1760  * Return codes
1761  *   0 - success.
1762  *   Any other value - error.
1763  **/
1764 void
1765 lpfc_handle_eratt(struct lpfc_hba *phba)
1766 {
1767         (*phba->lpfc_handle_eratt)(phba);
1768 }
1769
1770 /**
1771  * lpfc_handle_latt - The HBA link event handler
1772  * @phba: pointer to lpfc hba data structure.
1773  *
1774  * This routine is invoked from the worker thread to handle a HBA host
1775  * attention link event.
1776  **/
1777 void
1778 lpfc_handle_latt(struct lpfc_hba *phba)
1779 {
1780         struct lpfc_vport *vport = phba->pport;
1781         struct lpfc_sli   *psli = &phba->sli;
1782         LPFC_MBOXQ_t *pmb;
1783         volatile uint32_t control;
1784         struct lpfc_dmabuf *mp;
1785         int rc = 0;
1786
1787         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1788         if (!pmb) {
1789                 rc = 1;
1790                 goto lpfc_handle_latt_err_exit;
1791         }
1792
1793         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1794         if (!mp) {
1795                 rc = 2;
1796                 goto lpfc_handle_latt_free_pmb;
1797         }
1798
1799         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1800         if (!mp->virt) {
1801                 rc = 3;
1802                 goto lpfc_handle_latt_free_mp;
1803         }
1804
1805         /* Cleanup any outstanding ELS commands */
1806         lpfc_els_flush_all_cmd(phba);
1807
1808         psli->slistat.link_event++;
1809         lpfc_read_topology(phba, pmb, mp);
1810         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1811         pmb->vport = vport;
1812         /* Block ELS IOCBs until we have processed this mbox command */
1813         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1814         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1815         if (rc == MBX_NOT_FINISHED) {
1816                 rc = 4;
1817                 goto lpfc_handle_latt_free_mbuf;
1818         }
1819
1820         /* Clear Link Attention in HA REG */
1821         spin_lock_irq(&phba->hbalock);
1822         writel(HA_LATT, phba->HAregaddr);
1823         readl(phba->HAregaddr); /* flush */
1824         spin_unlock_irq(&phba->hbalock);
1825
1826         return;
1827
1828 lpfc_handle_latt_free_mbuf:
1829         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1830         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1831 lpfc_handle_latt_free_mp:
1832         kfree(mp);
1833 lpfc_handle_latt_free_pmb:
1834         mempool_free(pmb, phba->mbox_mem_pool);
1835 lpfc_handle_latt_err_exit:
1836         /* Enable Link attention interrupts */
1837         spin_lock_irq(&phba->hbalock);
1838         psli->sli_flag |= LPFC_PROCESS_LA;
1839         control = readl(phba->HCregaddr);
1840         control |= HC_LAINT_ENA;
1841         writel(control, phba->HCregaddr);
1842         readl(phba->HCregaddr); /* flush */
1843
1844         /* Clear Link Attention in HA REG */
1845         writel(HA_LATT, phba->HAregaddr);
1846         readl(phba->HAregaddr); /* flush */
1847         spin_unlock_irq(&phba->hbalock);
1848         lpfc_linkdown(phba);
1849         phba->link_state = LPFC_HBA_ERROR;
1850
1851         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1852                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1853
1854         return;
1855 }
1856
1857 /**
1858  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1859  * @phba: pointer to lpfc hba data structure.
1860  * @vpd: pointer to the vital product data.
1861  * @len: length of the vital product data in bytes.
1862  *
1863  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1864  * an array of characters. In this routine, the ModelName, ProgramType, and
1865  * ModelDesc, etc. fields of the phba data structure will be populated.
1866  *
1867  * Return codes
1868  *   0 - pointer to the VPD passed in is NULL
1869  *   1 - success
1870  **/
1871 int
1872 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1873 {
1874         uint8_t lenlo, lenhi;
1875         int Length;
1876         int i, j;
1877         int finished = 0;
1878         int index = 0;
1879
1880         if (!vpd)
1881                 return 0;
1882
1883         /* Vital Product */
1884         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1885                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1886                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1887                         (uint32_t) vpd[3]);
1888         while (!finished && (index < (len - 4))) {
1889                 switch (vpd[index]) {
1890                 case 0x82:
1891                 case 0x91:
1892                         index += 1;
1893                         lenlo = vpd[index];
1894                         index += 1;
1895                         lenhi = vpd[index];
1896                         index += 1;
1897                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1898                         index += i;
1899                         break;
1900                 case 0x90:
1901                         index += 1;
1902                         lenlo = vpd[index];
1903                         index += 1;
1904                         lenhi = vpd[index];
1905                         index += 1;
1906                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1907                         if (Length > len - index)
1908                                 Length = len - index;
1909                         while (Length > 0) {
1910                         /* Look for Serial Number */
1911                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1912                                 index += 2;
1913                                 i = vpd[index];
1914                                 index += 1;
1915                                 j = 0;
1916                                 Length -= (3+i);
1917                                 while(i--) {
1918                                         phba->SerialNumber[j++] = vpd[index++];
1919                                         if (j == 31)
1920                                                 break;
1921                                 }
1922                                 phba->SerialNumber[j] = 0;
1923                                 continue;
1924                         }
1925                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1926                                 phba->vpd_flag |= VPD_MODEL_DESC;
1927                                 index += 2;
1928                                 i = vpd[index];
1929                                 index += 1;
1930                                 j = 0;
1931                                 Length -= (3+i);
1932                                 while(i--) {
1933                                         phba->ModelDesc[j++] = vpd[index++];
1934                                         if (j == 255)
1935                                                 break;
1936                                 }
1937                                 phba->ModelDesc[j] = 0;
1938                                 continue;
1939                         }
1940                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1941                                 phba->vpd_flag |= VPD_MODEL_NAME;
1942                                 index += 2;
1943                                 i = vpd[index];
1944                                 index += 1;
1945                                 j = 0;
1946                                 Length -= (3+i);
1947                                 while(i--) {
1948                                         phba->ModelName[j++] = vpd[index++];
1949                                         if (j == 79)
1950                                                 break;
1951                                 }
1952                                 phba->ModelName[j] = 0;
1953                                 continue;
1954                         }
1955                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1956                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1957                                 index += 2;
1958                                 i = vpd[index];
1959                                 index += 1;
1960                                 j = 0;
1961                                 Length -= (3+i);
1962                                 while(i--) {
1963                                         phba->ProgramType[j++] = vpd[index++];
1964                                         if (j == 255)
1965                                                 break;
1966                                 }
1967                                 phba->ProgramType[j] = 0;
1968                                 continue;
1969                         }
1970                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1971                                 phba->vpd_flag |= VPD_PORT;
1972                                 index += 2;
1973                                 i = vpd[index];
1974                                 index += 1;
1975                                 j = 0;
1976                                 Length -= (3+i);
1977                                 while(i--) {
1978                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1979                                             (phba->sli4_hba.pport_name_sta ==
1980                                              LPFC_SLI4_PPNAME_GET)) {
1981                                                 j++;
1982                                                 index++;
1983                                         } else
1984                                                 phba->Port[j++] = vpd[index++];
1985                                         if (j == 19)
1986                                                 break;
1987                                 }
1988                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1989                                     (phba->sli4_hba.pport_name_sta ==
1990                                      LPFC_SLI4_PPNAME_NON))
1991                                         phba->Port[j] = 0;
1992                                 continue;
1993                         }
1994                         else {
1995                                 index += 2;
1996                                 i = vpd[index];
1997                                 index += 1;
1998                                 index += i;
1999                                 Length -= (3 + i);
2000                         }
2001                 }
2002                 finished = 0;
2003                 break;
2004                 case 0x78:
2005                         finished = 1;
2006                         break;
2007                 default:
2008                         index ++;
2009                         break;
2010                 }
2011         }
2012
2013         return(1);
2014 }
2015
2016 /**
2017  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2018  * @phba: pointer to lpfc hba data structure.
2019  * @mdp: pointer to the data structure to hold the derived model name.
2020  * @descp: pointer to the data structure to hold the derived description.
2021  *
2022  * This routine retrieves HBA's description based on its registered PCI device
2023  * ID. The @descp passed into this function points to an array of 256 chars. It
2024  * shall be returned with the model name, maximum speed, and the host bus type.
2025  * The @mdp passed into this function points to an array of 80 chars. When the
2026  * function returns, the @mdp will be filled with the model name.
2027  **/
2028 static void
2029 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2030 {
2031         lpfc_vpd_t *vp;
2032         uint16_t dev_id = phba->pcidev->device;
2033         int max_speed;
2034         int GE = 0;
2035         int oneConnect = 0; /* default is not a oneConnect */
2036         struct {
2037                 char *name;
2038                 char *bus;
2039                 char *function;
2040         } m = {"<Unknown>", "", ""};
2041
2042         if (mdp && mdp[0] != '\0'
2043                 && descp && descp[0] != '\0')
2044                 return;
2045
2046         if (phba->lmt & LMT_32Gb)
2047                 max_speed = 32;
2048         else if (phba->lmt & LMT_16Gb)
2049                 max_speed = 16;
2050         else if (phba->lmt & LMT_10Gb)
2051                 max_speed = 10;
2052         else if (phba->lmt & LMT_8Gb)
2053                 max_speed = 8;
2054         else if (phba->lmt & LMT_4Gb)
2055                 max_speed = 4;
2056         else if (phba->lmt & LMT_2Gb)
2057                 max_speed = 2;
2058         else if (phba->lmt & LMT_1Gb)
2059                 max_speed = 1;
2060         else
2061                 max_speed = 0;
2062
2063         vp = &phba->vpd;
2064
2065         switch (dev_id) {
2066         case PCI_DEVICE_ID_FIREFLY:
2067                 m = (typeof(m)){"LP6000", "PCI",
2068                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2069                 break;
2070         case PCI_DEVICE_ID_SUPERFLY:
2071                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2072                         m = (typeof(m)){"LP7000", "PCI", ""};
2073                 else
2074                         m = (typeof(m)){"LP7000E", "PCI", ""};
2075                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2076                 break;
2077         case PCI_DEVICE_ID_DRAGONFLY:
2078                 m = (typeof(m)){"LP8000", "PCI",
2079                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2080                 break;
2081         case PCI_DEVICE_ID_CENTAUR:
2082                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2083                         m = (typeof(m)){"LP9002", "PCI", ""};
2084                 else
2085                         m = (typeof(m)){"LP9000", "PCI", ""};
2086                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2087                 break;
2088         case PCI_DEVICE_ID_RFLY:
2089                 m = (typeof(m)){"LP952", "PCI",
2090                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2091                 break;
2092         case PCI_DEVICE_ID_PEGASUS:
2093                 m = (typeof(m)){"LP9802", "PCI-X",
2094                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2095                 break;
2096         case PCI_DEVICE_ID_THOR:
2097                 m = (typeof(m)){"LP10000", "PCI-X",
2098                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2099                 break;
2100         case PCI_DEVICE_ID_VIPER:
2101                 m = (typeof(m)){"LPX1000",  "PCI-X",
2102                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2103                 break;
2104         case PCI_DEVICE_ID_PFLY:
2105                 m = (typeof(m)){"LP982", "PCI-X",
2106                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2107                 break;
2108         case PCI_DEVICE_ID_TFLY:
2109                 m = (typeof(m)){"LP1050", "PCI-X",
2110                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2111                 break;
2112         case PCI_DEVICE_ID_HELIOS:
2113                 m = (typeof(m)){"LP11000", "PCI-X2",
2114                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2115                 break;
2116         case PCI_DEVICE_ID_HELIOS_SCSP:
2117                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2118                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2119                 break;
2120         case PCI_DEVICE_ID_HELIOS_DCSP:
2121                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2122                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2123                 break;
2124         case PCI_DEVICE_ID_NEPTUNE:
2125                 m = (typeof(m)){"LPe1000", "PCIe",
2126                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2127                 break;
2128         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2129                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2130                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2131                 break;
2132         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2133                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2134                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2135                 break;
2136         case PCI_DEVICE_ID_BMID:
2137                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2138                 break;
2139         case PCI_DEVICE_ID_BSMB:
2140                 m = (typeof(m)){"LP111", "PCI-X2",
2141                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2142                 break;
2143         case PCI_DEVICE_ID_ZEPHYR:
2144                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2145                 break;
2146         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2147                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2148                 break;
2149         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2150                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2151                 GE = 1;
2152                 break;
2153         case PCI_DEVICE_ID_ZMID:
2154                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2155                 break;
2156         case PCI_DEVICE_ID_ZSMB:
2157                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2158                 break;
2159         case PCI_DEVICE_ID_LP101:
2160                 m = (typeof(m)){"LP101", "PCI-X",
2161                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2162                 break;
2163         case PCI_DEVICE_ID_LP10000S:
2164                 m = (typeof(m)){"LP10000-S", "PCI",
2165                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2166                 break;
2167         case PCI_DEVICE_ID_LP11000S:
2168                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2169                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2170                 break;
2171         case PCI_DEVICE_ID_LPE11000S:
2172                 m = (typeof(m)){"LPe11000-S", "PCIe",
2173                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2174                 break;
2175         case PCI_DEVICE_ID_SAT:
2176                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2177                 break;
2178         case PCI_DEVICE_ID_SAT_MID:
2179                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2180                 break;
2181         case PCI_DEVICE_ID_SAT_SMB:
2182                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2183                 break;
2184         case PCI_DEVICE_ID_SAT_DCSP:
2185                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2186                 break;
2187         case PCI_DEVICE_ID_SAT_SCSP:
2188                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2189                 break;
2190         case PCI_DEVICE_ID_SAT_S:
2191                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2192                 break;
2193         case PCI_DEVICE_ID_HORNET:
2194                 m = (typeof(m)){"LP21000", "PCIe",
2195                                 "Obsolete, Unsupported FCoE Adapter"};
2196                 GE = 1;
2197                 break;
2198         case PCI_DEVICE_ID_PROTEUS_VF:
2199                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2200                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2201                 break;
2202         case PCI_DEVICE_ID_PROTEUS_PF:
2203                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2204                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2205                 break;
2206         case PCI_DEVICE_ID_PROTEUS_S:
2207                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2208                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2209                 break;
2210         case PCI_DEVICE_ID_TIGERSHARK:
2211                 oneConnect = 1;
2212                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2213                 break;
2214         case PCI_DEVICE_ID_TOMCAT:
2215                 oneConnect = 1;
2216                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2217                 break;
2218         case PCI_DEVICE_ID_FALCON:
2219                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2220                                 "EmulexSecure Fibre"};
2221                 break;
2222         case PCI_DEVICE_ID_BALIUS:
2223                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2224                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2225                 break;
2226         case PCI_DEVICE_ID_LANCER_FC:
2227                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2228                 break;
2229         case PCI_DEVICE_ID_LANCER_FC_VF:
2230                 m = (typeof(m)){"LPe16000", "PCIe",
2231                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2232                 break;
2233         case PCI_DEVICE_ID_LANCER_FCOE:
2234                 oneConnect = 1;
2235                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2236                 break;
2237         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2238                 oneConnect = 1;
2239                 m = (typeof(m)){"OCe15100", "PCIe",
2240                                 "Obsolete, Unsupported FCoE"};
2241                 break;
2242         case PCI_DEVICE_ID_LANCER_G6_FC:
2243                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2244                 break;
2245         case PCI_DEVICE_ID_SKYHAWK:
2246         case PCI_DEVICE_ID_SKYHAWK_VF:
2247                 oneConnect = 1;
2248                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2249                 break;
2250         default:
2251                 m = (typeof(m)){"Unknown", "", ""};
2252                 break;
2253         }
2254
2255         if (mdp && mdp[0] == '\0')
2256                 snprintf(mdp, 79,"%s", m.name);
2257         /*
2258          * oneConnect hba requires special processing, they are all initiators
2259          * and we put the port number on the end
2260          */
2261         if (descp && descp[0] == '\0') {
2262                 if (oneConnect)
2263                         snprintf(descp, 255,
2264                                 "Emulex OneConnect %s, %s Initiator %s",
2265                                 m.name, m.function,
2266                                 phba->Port);
2267                 else if (max_speed == 0)
2268                         snprintf(descp, 255,
2269                                 "Emulex %s %s %s",
2270                                 m.name, m.bus, m.function);
2271                 else
2272                         snprintf(descp, 255,
2273                                 "Emulex %s %d%s %s %s",
2274                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2275                                 m.bus, m.function);
2276         }
2277 }
2278
2279 /**
2280  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2281  * @phba: pointer to lpfc hba data structure.
2282  * @pring: pointer to a IOCB ring.
2283  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2284  *
2285  * This routine posts a given number of IOCBs with the associated DMA buffer
2286  * descriptors specified by the cnt argument to the given IOCB ring.
2287  *
2288  * Return codes
2289  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2290  **/
2291 int
2292 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2293 {
2294         IOCB_t *icmd;
2295         struct lpfc_iocbq *iocb;
2296         struct lpfc_dmabuf *mp1, *mp2;
2297
2298         cnt += pring->missbufcnt;
2299
2300         /* While there are buffers to post */
2301         while (cnt > 0) {
2302                 /* Allocate buffer for  command iocb */
2303                 iocb = lpfc_sli_get_iocbq(phba);
2304                 if (iocb == NULL) {
2305                         pring->missbufcnt = cnt;
2306                         return cnt;
2307                 }
2308                 icmd = &iocb->iocb;
2309
2310                 /* 2 buffers can be posted per command */
2311                 /* Allocate buffer to post */
2312                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2313                 if (mp1)
2314                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2315                 if (!mp1 || !mp1->virt) {
2316                         kfree(mp1);
2317                         lpfc_sli_release_iocbq(phba, iocb);
2318                         pring->missbufcnt = cnt;
2319                         return cnt;
2320                 }
2321
2322                 INIT_LIST_HEAD(&mp1->list);
2323                 /* Allocate buffer to post */
2324                 if (cnt > 1) {
2325                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2326                         if (mp2)
2327                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2328                                                             &mp2->phys);
2329                         if (!mp2 || !mp2->virt) {
2330                                 kfree(mp2);
2331                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2332                                 kfree(mp1);
2333                                 lpfc_sli_release_iocbq(phba, iocb);
2334                                 pring->missbufcnt = cnt;
2335                                 return cnt;
2336                         }
2337
2338                         INIT_LIST_HEAD(&mp2->list);
2339                 } else {
2340                         mp2 = NULL;
2341                 }
2342
2343                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2344                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2345                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2346                 icmd->ulpBdeCount = 1;
2347                 cnt--;
2348                 if (mp2) {
2349                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2350                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2351                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2352                         cnt--;
2353                         icmd->ulpBdeCount = 2;
2354                 }
2355
2356                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2357                 icmd->ulpLe = 1;
2358
2359                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2360                     IOCB_ERROR) {
2361                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2362                         kfree(mp1);
2363                         cnt++;
2364                         if (mp2) {
2365                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2366                                 kfree(mp2);
2367                                 cnt++;
2368                         }
2369                         lpfc_sli_release_iocbq(phba, iocb);
2370                         pring->missbufcnt = cnt;
2371                         return cnt;
2372                 }
2373                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2374                 if (mp2)
2375                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2376         }
2377         pring->missbufcnt = 0;
2378         return 0;
2379 }
2380
2381 /**
2382  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2383  * @phba: pointer to lpfc hba data structure.
2384  *
2385  * This routine posts initial receive IOCB buffers to the ELS ring. The
2386  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2387  * set to 64 IOCBs.
2388  *
2389  * Return codes
2390  *   0 - success (currently always success)
2391  **/
2392 static int
2393 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2394 {
2395         struct lpfc_sli *psli = &phba->sli;
2396
2397         /* Ring 0, ELS / CT buffers */
2398         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2399         /* Ring 2 - FCP no buffers needed */
2400
2401         return 0;
2402 }
2403
2404 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2405
2406 /**
2407  * lpfc_sha_init - Set up initial array of hash table entries
2408  * @HashResultPointer: pointer to an array as hash table.
2409  *
2410  * This routine sets up the initial values to the array of hash table entries
2411  * for the LC HBAs.
2412  **/
2413 static void
2414 lpfc_sha_init(uint32_t * HashResultPointer)
2415 {
2416         HashResultPointer[0] = 0x67452301;
2417         HashResultPointer[1] = 0xEFCDAB89;
2418         HashResultPointer[2] = 0x98BADCFE;
2419         HashResultPointer[3] = 0x10325476;
2420         HashResultPointer[4] = 0xC3D2E1F0;
2421 }
2422
2423 /**
2424  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2425  * @HashResultPointer: pointer to an initial/result hash table.
2426  * @HashWorkingPointer: pointer to an working hash table.
2427  *
2428  * This routine iterates an initial hash table pointed by @HashResultPointer
2429  * with the values from the working hash table pointeed by @HashWorkingPointer.
2430  * The results are putting back to the initial hash table, returned through
2431  * the @HashResultPointer as the result hash table.
2432  **/
2433 static void
2434 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2435 {
2436         int t;
2437         uint32_t TEMP;
2438         uint32_t A, B, C, D, E;
2439         t = 16;
2440         do {
2441                 HashWorkingPointer[t] =
2442                     S(1,
2443                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2444                                                                      8] ^
2445                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2446         } while (++t <= 79);
2447         t = 0;
2448         A = HashResultPointer[0];
2449         B = HashResultPointer[1];
2450         C = HashResultPointer[2];
2451         D = HashResultPointer[3];
2452         E = HashResultPointer[4];
2453
2454         do {
2455                 if (t < 20) {
2456                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2457                 } else if (t < 40) {
2458                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2459                 } else if (t < 60) {
2460                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2461                 } else {
2462                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2463                 }
2464                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2465                 E = D;
2466                 D = C;
2467                 C = S(30, B);
2468                 B = A;
2469                 A = TEMP;
2470         } while (++t <= 79);
2471
2472         HashResultPointer[0] += A;
2473         HashResultPointer[1] += B;
2474         HashResultPointer[2] += C;
2475         HashResultPointer[3] += D;
2476         HashResultPointer[4] += E;
2477
2478 }
2479
2480 /**
2481  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2482  * @RandomChallenge: pointer to the entry of host challenge random number array.
2483  * @HashWorking: pointer to the entry of the working hash array.
2484  *
2485  * This routine calculates the working hash array referred by @HashWorking
2486  * from the challenge random numbers associated with the host, referred by
2487  * @RandomChallenge. The result is put into the entry of the working hash
2488  * array and returned by reference through @HashWorking.
2489  **/
2490 static void
2491 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2492 {
2493         *HashWorking = (*RandomChallenge ^ *HashWorking);
2494 }
2495
2496 /**
2497  * lpfc_hba_init - Perform special handling for LC HBA initialization
2498  * @phba: pointer to lpfc hba data structure.
2499  * @hbainit: pointer to an array of unsigned 32-bit integers.
2500  *
2501  * This routine performs the special handling for LC HBA initialization.
2502  **/
2503 void
2504 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2505 {
2506         int t;
2507         uint32_t *HashWorking;
2508         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2509
2510         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2511         if (!HashWorking)
2512                 return;
2513
2514         HashWorking[0] = HashWorking[78] = *pwwnn++;
2515         HashWorking[1] = HashWorking[79] = *pwwnn;
2516
2517         for (t = 0; t < 7; t++)
2518                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2519
2520         lpfc_sha_init(hbainit);
2521         lpfc_sha_iterate(hbainit, HashWorking);
2522         kfree(HashWorking);
2523 }
2524
2525 /**
2526  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2527  * @vport: pointer to a virtual N_Port data structure.
2528  *
2529  * This routine performs the necessary cleanups before deleting the @vport.
2530  * It invokes the discovery state machine to perform necessary state
2531  * transitions and to release the ndlps associated with the @vport. Note,
2532  * the physical port is treated as @vport 0.
2533  **/
2534 void
2535 lpfc_cleanup(struct lpfc_vport *vport)
2536 {
2537         struct lpfc_hba   *phba = vport->phba;
2538         struct lpfc_nodelist *ndlp, *next_ndlp;
2539         int i = 0;
2540
2541         if (phba->link_state > LPFC_LINK_DOWN)
2542                 lpfc_port_link_failure(vport);
2543
2544         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2545                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2546                         ndlp = lpfc_enable_node(vport, ndlp,
2547                                                 NLP_STE_UNUSED_NODE);
2548                         if (!ndlp)
2549                                 continue;
2550                         spin_lock_irq(&phba->ndlp_lock);
2551                         NLP_SET_FREE_REQ(ndlp);
2552                         spin_unlock_irq(&phba->ndlp_lock);
2553                         /* Trigger the release of the ndlp memory */
2554                         lpfc_nlp_put(ndlp);
2555                         continue;
2556                 }
2557                 spin_lock_irq(&phba->ndlp_lock);
2558                 if (NLP_CHK_FREE_REQ(ndlp)) {
2559                         /* The ndlp should not be in memory free mode already */
2560                         spin_unlock_irq(&phba->ndlp_lock);
2561                         continue;
2562                 } else
2563                         /* Indicate request for freeing ndlp memory */
2564                         NLP_SET_FREE_REQ(ndlp);
2565                 spin_unlock_irq(&phba->ndlp_lock);
2566
2567                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2568                     ndlp->nlp_DID == Fabric_DID) {
2569                         /* Just free up ndlp with Fabric_DID for vports */
2570                         lpfc_nlp_put(ndlp);
2571                         continue;
2572                 }
2573
2574                 /* take care of nodes in unused state before the state
2575                  * machine taking action.
2576                  */
2577                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2578                         lpfc_nlp_put(ndlp);
2579                         continue;
2580                 }
2581
2582                 if (ndlp->nlp_type & NLP_FABRIC)
2583                         lpfc_disc_state_machine(vport, ndlp, NULL,
2584                                         NLP_EVT_DEVICE_RECOVERY);
2585
2586                 lpfc_disc_state_machine(vport, ndlp, NULL,
2587                                              NLP_EVT_DEVICE_RM);
2588         }
2589
2590         /* At this point, ALL ndlp's should be gone
2591          * because of the previous NLP_EVT_DEVICE_RM.
2592          * Lets wait for this to happen, if needed.
2593          */
2594         while (!list_empty(&vport->fc_nodes)) {
2595                 if (i++ > 3000) {
2596                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2597                                 "0233 Nodelist not empty\n");
2598                         list_for_each_entry_safe(ndlp, next_ndlp,
2599                                                 &vport->fc_nodes, nlp_listp) {
2600                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2601                                                 LOG_NODE,
2602                                                 "0282 did:x%x ndlp:x%p "
2603                                                 "usgmap:x%x refcnt:%d\n",
2604                                                 ndlp->nlp_DID, (void *)ndlp,
2605                                                 ndlp->nlp_usg_map,
2606                                                 atomic_read(
2607                                                         &ndlp->kref.refcount));
2608                         }
2609                         break;
2610                 }
2611
2612                 /* Wait for any activity on ndlps to settle */
2613                 msleep(10);
2614         }
2615         lpfc_cleanup_vports_rrqs(vport, NULL);
2616 }
2617
2618 /**
2619  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2620  * @vport: pointer to a virtual N_Port data structure.
2621  *
2622  * This routine stops all the timers associated with a @vport. This function
2623  * is invoked before disabling or deleting a @vport. Note that the physical
2624  * port is treated as @vport 0.
2625  **/
2626 void
2627 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2628 {
2629         del_timer_sync(&vport->els_tmofunc);
2630         del_timer_sync(&vport->delayed_disc_tmo);
2631         lpfc_can_disctmo(vport);
2632         return;
2633 }
2634
2635 /**
2636  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2637  * @phba: pointer to lpfc hba data structure.
2638  *
2639  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2640  * caller of this routine should already hold the host lock.
2641  **/
2642 void
2643 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2644 {
2645         /* Clear pending FCF rediscovery wait flag */
2646         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2647
2648         /* Now, try to stop the timer */
2649         del_timer(&phba->fcf.redisc_wait);
2650 }
2651
2652 /**
2653  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2654  * @phba: pointer to lpfc hba data structure.
2655  *
2656  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2657  * checks whether the FCF rediscovery wait timer is pending with the host
2658  * lock held before proceeding with disabling the timer and clearing the
2659  * wait timer pendig flag.
2660  **/
2661 void
2662 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2663 {
2664         spin_lock_irq(&phba->hbalock);
2665         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2666                 /* FCF rediscovery timer already fired or stopped */
2667                 spin_unlock_irq(&phba->hbalock);
2668                 return;
2669         }
2670         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2671         /* Clear failover in progress flags */
2672         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2673         spin_unlock_irq(&phba->hbalock);
2674 }
2675
2676 /**
2677  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2678  * @phba: pointer to lpfc hba data structure.
2679  *
2680  * This routine stops all the timers associated with a HBA. This function is
2681  * invoked before either putting a HBA offline or unloading the driver.
2682  **/
2683 void
2684 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2685 {
2686         lpfc_stop_vport_timers(phba->pport);
2687         del_timer_sync(&phba->sli.mbox_tmo);
2688         del_timer_sync(&phba->fabric_block_timer);
2689         del_timer_sync(&phba->eratt_poll);
2690         del_timer_sync(&phba->hb_tmofunc);
2691         if (phba->sli_rev == LPFC_SLI_REV4) {
2692                 del_timer_sync(&phba->rrq_tmr);
2693                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2694         }
2695         phba->hb_outstanding = 0;
2696
2697         switch (phba->pci_dev_grp) {
2698         case LPFC_PCI_DEV_LP:
2699                 /* Stop any LightPulse device specific driver timers */
2700                 del_timer_sync(&phba->fcp_poll_timer);
2701                 break;
2702         case LPFC_PCI_DEV_OC:
2703                 /* Stop any OneConnect device sepcific driver timers */
2704                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2705                 break;
2706         default:
2707                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2708                                 "0297 Invalid device group (x%x)\n",
2709                                 phba->pci_dev_grp);
2710                 break;
2711         }
2712         return;
2713 }
2714
2715 /**
2716  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2717  * @phba: pointer to lpfc hba data structure.
2718  *
2719  * This routine marks a HBA's management interface as blocked. Once the HBA's
2720  * management interface is marked as blocked, all the user space access to
2721  * the HBA, whether they are from sysfs interface or libdfc interface will
2722  * all be blocked. The HBA is set to block the management interface when the
2723  * driver prepares the HBA interface for online or offline.
2724  **/
2725 static void
2726 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2727 {
2728         unsigned long iflag;
2729         uint8_t actcmd = MBX_HEARTBEAT;
2730         unsigned long timeout;
2731
2732         spin_lock_irqsave(&phba->hbalock, iflag);
2733         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2734         spin_unlock_irqrestore(&phba->hbalock, iflag);
2735         if (mbx_action == LPFC_MBX_NO_WAIT)
2736                 return;
2737         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2738         spin_lock_irqsave(&phba->hbalock, iflag);
2739         if (phba->sli.mbox_active) {
2740                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2741                 /* Determine how long we might wait for the active mailbox
2742                  * command to be gracefully completed by firmware.
2743                  */
2744                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2745                                 phba->sli.mbox_active) * 1000) + jiffies;
2746         }
2747         spin_unlock_irqrestore(&phba->hbalock, iflag);
2748
2749         /* Wait for the outstnading mailbox command to complete */
2750         while (phba->sli.mbox_active) {
2751                 /* Check active mailbox complete status every 2ms */
2752                 msleep(2);
2753                 if (time_after(jiffies, timeout)) {
2754                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2755                                 "2813 Mgmt IO is Blocked %x "
2756                                 "- mbox cmd %x still active\n",
2757                                 phba->sli.sli_flag, actcmd);
2758                         break;
2759                 }
2760         }
2761 }
2762
2763 /**
2764  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2765  * @phba: pointer to lpfc hba data structure.
2766  *
2767  * Allocate RPIs for all active remote nodes. This is needed whenever
2768  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2769  * is to fixup the temporary rpi assignments.
2770  **/
2771 void
2772 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2773 {
2774         struct lpfc_nodelist  *ndlp, *next_ndlp;
2775         struct lpfc_vport **vports;
2776         int i;
2777
2778         if (phba->sli_rev != LPFC_SLI_REV4)
2779                 return;
2780
2781         vports = lpfc_create_vport_work_array(phba);
2782         if (vports != NULL) {
2783                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2784                         if (vports[i]->load_flag & FC_UNLOADING)
2785                                 continue;
2786
2787                         list_for_each_entry_safe(ndlp, next_ndlp,
2788                                                  &vports[i]->fc_nodes,
2789                                                  nlp_listp) {
2790                                 if (NLP_CHK_NODE_ACT(ndlp)) {
2791                                         ndlp->nlp_rpi =
2792                                                 lpfc_sli4_alloc_rpi(phba);
2793                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2794                                                          LOG_NODE,
2795                                                          "0009 rpi:%x DID:%x "
2796                                                          "flg:%x map:%x %p\n",
2797                                                          ndlp->nlp_rpi,
2798                                                          ndlp->nlp_DID,
2799                                                          ndlp->nlp_flag,
2800                                                          ndlp->nlp_usg_map,
2801                                                          ndlp);
2802                                 }
2803                         }
2804                 }
2805         }
2806         lpfc_destroy_vport_work_array(phba, vports);
2807 }
2808
2809 /**
2810  * lpfc_online - Initialize and bring a HBA online
2811  * @phba: pointer to lpfc hba data structure.
2812  *
2813  * This routine initializes the HBA and brings a HBA online. During this
2814  * process, the management interface is blocked to prevent user space access
2815  * to the HBA interfering with the driver initialization.
2816  *
2817  * Return codes
2818  *   0 - successful
2819  *   1 - failed
2820  **/
2821 int
2822 lpfc_online(struct lpfc_hba *phba)
2823 {
2824         struct lpfc_vport *vport;
2825         struct lpfc_vport **vports;
2826         int i;
2827         bool vpis_cleared = false;
2828
2829         if (!phba)
2830                 return 0;
2831         vport = phba->pport;
2832
2833         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2834                 return 0;
2835
2836         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2837                         "0458 Bring Adapter online\n");
2838
2839         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2840
2841         if (!lpfc_sli_queue_setup(phba)) {
2842                 lpfc_unblock_mgmt_io(phba);
2843                 return 1;
2844         }
2845
2846         if (phba->sli_rev == LPFC_SLI_REV4) {
2847                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2848                         lpfc_unblock_mgmt_io(phba);
2849                         return 1;
2850                 }
2851                 spin_lock_irq(&phba->hbalock);
2852                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2853                         vpis_cleared = true;
2854                 spin_unlock_irq(&phba->hbalock);
2855         } else {
2856                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2857                         lpfc_unblock_mgmt_io(phba);
2858                         return 1;
2859                 }
2860         }
2861
2862         vports = lpfc_create_vport_work_array(phba);
2863         if (vports != NULL) {
2864                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2865                         struct Scsi_Host *shost;
2866                         shost = lpfc_shost_from_vport(vports[i]);
2867                         spin_lock_irq(shost->host_lock);
2868                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2869                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2870                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2871                         if (phba->sli_rev == LPFC_SLI_REV4) {
2872                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2873                                 if ((vpis_cleared) &&
2874                                     (vports[i]->port_type !=
2875                                         LPFC_PHYSICAL_PORT))
2876                                         vports[i]->vpi = 0;
2877                         }
2878                         spin_unlock_irq(shost->host_lock);
2879                 }
2880         }
2881         lpfc_destroy_vport_work_array(phba, vports);
2882
2883         lpfc_unblock_mgmt_io(phba);
2884         return 0;
2885 }
2886
2887 /**
2888  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2889  * @phba: pointer to lpfc hba data structure.
2890  *
2891  * This routine marks a HBA's management interface as not blocked. Once the
2892  * HBA's management interface is marked as not blocked, all the user space
2893  * access to the HBA, whether they are from sysfs interface or libdfc
2894  * interface will be allowed. The HBA is set to block the management interface
2895  * when the driver prepares the HBA interface for online or offline and then
2896  * set to unblock the management interface afterwards.
2897  **/
2898 void
2899 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2900 {
2901         unsigned long iflag;
2902
2903         spin_lock_irqsave(&phba->hbalock, iflag);
2904         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2905         spin_unlock_irqrestore(&phba->hbalock, iflag);
2906 }
2907
2908 /**
2909  * lpfc_offline_prep - Prepare a HBA to be brought offline
2910  * @phba: pointer to lpfc hba data structure.
2911  *
2912  * This routine is invoked to prepare a HBA to be brought offline. It performs
2913  * unregistration login to all the nodes on all vports and flushes the mailbox
2914  * queue to make it ready to be brought offline.
2915  **/
2916 void
2917 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2918 {
2919         struct lpfc_vport *vport = phba->pport;
2920         struct lpfc_nodelist  *ndlp, *next_ndlp;
2921         struct lpfc_vport **vports;
2922         struct Scsi_Host *shost;
2923         int i;
2924
2925         if (vport->fc_flag & FC_OFFLINE_MODE)
2926                 return;
2927
2928         lpfc_block_mgmt_io(phba, mbx_action);
2929
2930         lpfc_linkdown(phba);
2931
2932         /* Issue an unreg_login to all nodes on all vports */
2933         vports = lpfc_create_vport_work_array(phba);
2934         if (vports != NULL) {
2935                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2936                         if (vports[i]->load_flag & FC_UNLOADING)
2937                                 continue;
2938                         shost = lpfc_shost_from_vport(vports[i]);
2939                         spin_lock_irq(shost->host_lock);
2940                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2941                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2942                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2943                         spin_unlock_irq(shost->host_lock);
2944
2945                         shost = lpfc_shost_from_vport(vports[i]);
2946                         list_for_each_entry_safe(ndlp, next_ndlp,
2947                                                  &vports[i]->fc_nodes,
2948                                                  nlp_listp) {
2949                                 if (!NLP_CHK_NODE_ACT(ndlp))
2950                                         continue;
2951                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2952                                         continue;
2953                                 if (ndlp->nlp_type & NLP_FABRIC) {
2954                                         lpfc_disc_state_machine(vports[i], ndlp,
2955                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2956                                         lpfc_disc_state_machine(vports[i], ndlp,
2957                                                 NULL, NLP_EVT_DEVICE_RM);
2958                                 }
2959                                 spin_lock_irq(shost->host_lock);
2960                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2961                                 spin_unlock_irq(shost->host_lock);
2962                                 /*
2963                                  * Whenever an SLI4 port goes offline, free the
2964                                  * RPI. Get a new RPI when the adapter port
2965                                  * comes back online.
2966                                  */
2967                                 if (phba->sli_rev == LPFC_SLI_REV4) {
2968                                         lpfc_printf_vlog(ndlp->vport,
2969                                                          KERN_INFO, LOG_NODE,
2970                                                          "0011 lpfc_offline: "
2971                                                          "ndlp:x%p did %x "
2972                                                          "usgmap:x%x rpi:%x\n",
2973                                                          ndlp, ndlp->nlp_DID,
2974                                                          ndlp->nlp_usg_map,
2975                                                          ndlp->nlp_rpi);
2976
2977                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2978                                 }
2979                                 lpfc_unreg_rpi(vports[i], ndlp);
2980                         }
2981                 }
2982         }
2983         lpfc_destroy_vport_work_array(phba, vports);
2984
2985         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2986 }
2987
2988 /**
2989  * lpfc_offline - Bring a HBA offline
2990  * @phba: pointer to lpfc hba data structure.
2991  *
2992  * This routine actually brings a HBA offline. It stops all the timers
2993  * associated with the HBA, brings down the SLI layer, and eventually
2994  * marks the HBA as in offline state for the upper layer protocol.
2995  **/
2996 void
2997 lpfc_offline(struct lpfc_hba *phba)
2998 {
2999         struct Scsi_Host  *shost;
3000         struct lpfc_vport **vports;
3001         int i;
3002
3003         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3004                 return;
3005
3006         /* stop port and all timers associated with this hba */
3007         lpfc_stop_port(phba);
3008         vports = lpfc_create_vport_work_array(phba);
3009         if (vports != NULL)
3010                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3011                         lpfc_stop_vport_timers(vports[i]);
3012         lpfc_destroy_vport_work_array(phba, vports);
3013         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3014                         "0460 Bring Adapter offline\n");
3015         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3016            now.  */
3017         lpfc_sli_hba_down(phba);
3018         spin_lock_irq(&phba->hbalock);
3019         phba->work_ha = 0;
3020         spin_unlock_irq(&phba->hbalock);
3021         vports = lpfc_create_vport_work_array(phba);
3022         if (vports != NULL)
3023                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3024                         shost = lpfc_shost_from_vport(vports[i]);
3025                         spin_lock_irq(shost->host_lock);
3026                         vports[i]->work_port_events = 0;
3027                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3028                         spin_unlock_irq(shost->host_lock);
3029                 }
3030         lpfc_destroy_vport_work_array(phba, vports);
3031 }
3032
3033 /**
3034  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3035  * @phba: pointer to lpfc hba data structure.
3036  *
3037  * This routine is to free all the SCSI buffers and IOCBs from the driver
3038  * list back to kernel. It is called from lpfc_pci_remove_one to free
3039  * the internal resources before the device is removed from the system.
3040  **/
3041 static void
3042 lpfc_scsi_free(struct lpfc_hba *phba)
3043 {
3044         struct lpfc_scsi_buf *sb, *sb_next;
3045         struct lpfc_iocbq *io, *io_next;
3046
3047         spin_lock_irq(&phba->hbalock);
3048
3049         /* Release all the lpfc_scsi_bufs maintained by this host. */
3050
3051         spin_lock(&phba->scsi_buf_list_put_lock);
3052         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3053                                  list) {
3054                 list_del(&sb->list);
3055                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3056                               sb->dma_handle);
3057                 kfree(sb);
3058                 phba->total_scsi_bufs--;
3059         }
3060         spin_unlock(&phba->scsi_buf_list_put_lock);
3061
3062         spin_lock(&phba->scsi_buf_list_get_lock);
3063         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3064                                  list) {
3065                 list_del(&sb->list);
3066                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3067                               sb->dma_handle);
3068                 kfree(sb);
3069                 phba->total_scsi_bufs--;
3070         }
3071         spin_unlock(&phba->scsi_buf_list_get_lock);
3072
3073         /* Release all the lpfc_iocbq entries maintained by this host. */
3074         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3075                 list_del(&io->list);
3076                 kfree(io);
3077                 phba->total_iocbq_bufs--;
3078         }
3079
3080         spin_unlock_irq(&phba->hbalock);
3081 }
3082
3083 /**
3084  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3085  * @phba: pointer to lpfc hba data structure.
3086  *
3087  * This routine first calculates the sizes of the current els and allocated
3088  * scsi sgl lists, and then goes through all sgls to updates the physical
3089  * XRIs assigned due to port function reset. During port initialization, the
3090  * current els and allocated scsi sgl lists are 0s.
3091  *
3092  * Return codes
3093  *   0 - successful (for now, it always returns 0)
3094  **/
3095 int
3096 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3097 {
3098         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3099         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3100         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3101         LIST_HEAD(els_sgl_list);
3102         LIST_HEAD(scsi_sgl_list);
3103         int rc;
3104         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3105
3106         /*
3107          * update on pci function's els xri-sgl list
3108          */
3109         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3110         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3111                 /* els xri-sgl expanded */
3112                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3113                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3114                                 "3157 ELS xri-sgl count increased from "
3115                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3116                                 els_xri_cnt);
3117                 /* allocate the additional els sgls */
3118                 for (i = 0; i < xri_cnt; i++) {
3119                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3120                                              GFP_KERNEL);
3121                         if (sglq_entry == NULL) {
3122                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3123                                                 "2562 Failure to allocate an "
3124                                                 "ELS sgl entry:%d\n", i);
3125                                 rc = -ENOMEM;
3126                                 goto out_free_mem;
3127                         }
3128                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3129                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3130                                                            &sglq_entry->phys);
3131                         if (sglq_entry->virt == NULL) {
3132                                 kfree(sglq_entry);
3133                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3134                                                 "2563 Failure to allocate an "
3135                                                 "ELS mbuf:%d\n", i);
3136                                 rc = -ENOMEM;
3137                                 goto out_free_mem;
3138                         }
3139                         sglq_entry->sgl = sglq_entry->virt;
3140                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3141                         sglq_entry->state = SGL_FREED;
3142                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3143                 }
3144                 spin_lock_irq(&phba->hbalock);
3145                 spin_lock(&pring->ring_lock);
3146                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3147                 spin_unlock(&pring->ring_lock);
3148                 spin_unlock_irq(&phba->hbalock);
3149         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3150                 /* els xri-sgl shrinked */
3151                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3152                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3153                                 "3158 ELS xri-sgl count decreased from "
3154                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3155                                 els_xri_cnt);
3156                 spin_lock_irq(&phba->hbalock);
3157                 spin_lock(&pring->ring_lock);
3158                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3159                 spin_unlock(&pring->ring_lock);
3160                 spin_unlock_irq(&phba->hbalock);
3161                 /* release extra els sgls from list */
3162                 for (i = 0; i < xri_cnt; i++) {
3163                         list_remove_head(&els_sgl_list,
3164                                          sglq_entry, struct lpfc_sglq, list);
3165                         if (sglq_entry) {
3166                                 lpfc_mbuf_free(phba, sglq_entry->virt,
3167                                                sglq_entry->phys);
3168                                 kfree(sglq_entry);
3169                         }
3170                 }
3171                 spin_lock_irq(&phba->hbalock);
3172                 spin_lock(&pring->ring_lock);
3173                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3174                 spin_unlock(&pring->ring_lock);
3175                 spin_unlock_irq(&phba->hbalock);
3176         } else
3177                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3178                                 "3163 ELS xri-sgl count unchanged: %d\n",
3179                                 els_xri_cnt);
3180         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3181
3182         /* update xris to els sgls on the list */
3183         sglq_entry = NULL;
3184         sglq_entry_next = NULL;
3185         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3186                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3187                 lxri = lpfc_sli4_next_xritag(phba);
3188                 if (lxri == NO_XRI) {
3189                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3190                                         "2400 Failed to allocate xri for "
3191                                         "ELS sgl\n");
3192                         rc = -ENOMEM;
3193                         goto out_free_mem;
3194                 }
3195                 sglq_entry->sli4_lxritag = lxri;
3196                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3197         }
3198
3199         /*
3200          * update on pci function's allocated scsi xri-sgl list
3201          */
3202         phba->total_scsi_bufs = 0;
3203
3204         /* maximum number of xris available for scsi buffers */
3205         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3206                                       els_xri_cnt;
3207
3208         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3209                         "2401 Current allocated SCSI xri-sgl count:%d, "
3210                         "maximum  SCSI xri count:%d\n",
3211                         phba->sli4_hba.scsi_xri_cnt,
3212                         phba->sli4_hba.scsi_xri_max);
3213
3214         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3215         spin_lock(&phba->scsi_buf_list_put_lock);
3216         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3217         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3218         spin_unlock(&phba->scsi_buf_list_put_lock);
3219         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3220
3221         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3222                 /* max scsi xri shrinked below the allocated scsi buffers */
3223                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3224                                         phba->sli4_hba.scsi_xri_max;
3225                 /* release the extra allocated scsi buffers */
3226                 for (i = 0; i < scsi_xri_cnt; i++) {
3227                         list_remove_head(&scsi_sgl_list, psb,
3228                                          struct lpfc_scsi_buf, list);
3229                         if (psb) {
3230                                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3231                                               psb->data, psb->dma_handle);
3232                                 kfree(psb);
3233                         }
3234                 }
3235                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3236                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3237                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3238         }
3239
3240         /* update xris associated to remaining allocated scsi buffers */
3241         psb = NULL;
3242         psb_next = NULL;
3243         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3244                 lxri = lpfc_sli4_next_xritag(phba);
3245                 if (lxri == NO_XRI) {
3246                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3247                                         "2560 Failed to allocate xri for "
3248                                         "scsi buffer\n");
3249                         rc = -ENOMEM;
3250                         goto out_free_mem;
3251                 }
3252                 psb->cur_iocbq.sli4_lxritag = lxri;
3253                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3254         }
3255         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3256         spin_lock(&phba->scsi_buf_list_put_lock);
3257         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3258         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3259         spin_unlock(&phba->scsi_buf_list_put_lock);
3260         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3261
3262         return 0;
3263
3264 out_free_mem:
3265         lpfc_free_els_sgl_list(phba);
3266         lpfc_scsi_free(phba);
3267         return rc;
3268 }
3269
3270 /**
3271  * lpfc_create_port - Create an FC port
3272  * @phba: pointer to lpfc hba data structure.
3273  * @instance: a unique integer ID to this FC port.
3274  * @dev: pointer to the device data structure.
3275  *
3276  * This routine creates a FC port for the upper layer protocol. The FC port
3277  * can be created on top of either a physical port or a virtual port provided
3278  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3279  * and associates the FC port created before adding the shost into the SCSI
3280  * layer.
3281  *
3282  * Return codes
3283  *   @vport - pointer to the virtual N_Port data structure.
3284  *   NULL - port create failed.
3285  **/
3286 struct lpfc_vport *
3287 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3288 {
3289         struct lpfc_vport *vport;
3290         struct Scsi_Host  *shost;
3291         int error = 0;
3292
3293         if (dev != &phba->pcidev->dev) {
3294                 shost = scsi_host_alloc(&lpfc_vport_template,
3295                                         sizeof(struct lpfc_vport));
3296         } else {
3297                 if (phba->sli_rev == LPFC_SLI_REV4)
3298                         shost = scsi_host_alloc(&lpfc_template,
3299                                         sizeof(struct lpfc_vport));
3300                 else
3301                         shost = scsi_host_alloc(&lpfc_template_s3,
3302                                         sizeof(struct lpfc_vport));
3303         }
3304         if (!shost)
3305                 goto out;
3306
3307         vport = (struct lpfc_vport *) shost->hostdata;
3308         vport->phba = phba;
3309         vport->load_flag |= FC_LOADING;
3310         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3311         vport->fc_rscn_flush = 0;
3312
3313         lpfc_get_vport_cfgparam(vport);
3314         shost->unique_id = instance;
3315         shost->max_id = LPFC_MAX_TARGET;
3316         shost->max_lun = vport->cfg_max_luns;
3317         shost->this_id = -1;
3318         shost->max_cmd_len = 16;
3319         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3320         if (phba->sli_rev == LPFC_SLI_REV4) {
3321                 shost->dma_boundary =
3322                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3323                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3324         }
3325
3326         /*
3327          * Set initial can_queue value since 0 is no longer supported and
3328          * scsi_add_host will fail. This will be adjusted later based on the
3329          * max xri value determined in hba setup.
3330          */
3331         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3332         if (dev != &phba->pcidev->dev) {
3333                 shost->transportt = lpfc_vport_transport_template;
3334                 vport->port_type = LPFC_NPIV_PORT;
3335         } else {
3336                 shost->transportt = lpfc_transport_template;
3337                 vport->port_type = LPFC_PHYSICAL_PORT;
3338         }
3339
3340         /* Initialize all internally managed lists. */
3341         INIT_LIST_HEAD(&vport->fc_nodes);
3342         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3343         spin_lock_init(&vport->work_port_lock);
3344
3345         init_timer(&vport->fc_disctmo);
3346         vport->fc_disctmo.function = lpfc_disc_timeout;
3347         vport->fc_disctmo.data = (unsigned long)vport;
3348
3349         init_timer(&vport->els_tmofunc);
3350         vport->els_tmofunc.function = lpfc_els_timeout;
3351         vport->els_tmofunc.data = (unsigned long)vport;
3352
3353         init_timer(&vport->delayed_disc_tmo);
3354         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3355         vport->delayed_disc_tmo.data = (unsigned long)vport;
3356
3357         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3358         if (error)
3359                 goto out_put_shost;
3360
3361         spin_lock_irq(&phba->hbalock);
3362         list_add_tail(&vport->listentry, &phba->port_list);
3363         spin_unlock_irq(&phba->hbalock);
3364         return vport;
3365
3366 out_put_shost:
3367         scsi_host_put(shost);
3368 out:
3369         return NULL;
3370 }
3371
3372 /**
3373  * destroy_port -  destroy an FC port
3374  * @vport: pointer to an lpfc virtual N_Port data structure.
3375  *
3376  * This routine destroys a FC port from the upper layer protocol. All the
3377  * resources associated with the port are released.
3378  **/
3379 void
3380 destroy_port(struct lpfc_vport *vport)
3381 {
3382         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3383         struct lpfc_hba  *phba = vport->phba;
3384
3385         lpfc_debugfs_terminate(vport);
3386         fc_remove_host(shost);
3387         scsi_remove_host(shost);
3388
3389         spin_lock_irq(&phba->hbalock);
3390         list_del_init(&vport->listentry);
3391         spin_unlock_irq(&phba->hbalock);
3392
3393         lpfc_cleanup(vport);
3394         return;
3395 }
3396
3397 /**
3398  * lpfc_get_instance - Get a unique integer ID
3399  *
3400  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3401  * uses the kernel idr facility to perform the task.
3402  *
3403  * Return codes:
3404  *   instance - a unique integer ID allocated as the new instance.
3405  *   -1 - lpfc get instance failed.
3406  **/
3407 int
3408 lpfc_get_instance(void)
3409 {
3410         int ret;
3411
3412         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3413         return ret < 0 ? -1 : ret;
3414 }
3415
3416 /**
3417  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3418  * @shost: pointer to SCSI host data structure.
3419  * @time: elapsed time of the scan in jiffies.
3420  *
3421  * This routine is called by the SCSI layer with a SCSI host to determine
3422  * whether the scan host is finished.
3423  *
3424  * Note: there is no scan_start function as adapter initialization will have
3425  * asynchronously kicked off the link initialization.
3426  *
3427  * Return codes
3428  *   0 - SCSI host scan is not over yet.
3429  *   1 - SCSI host scan is over.
3430  **/
3431 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3432 {
3433         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3434         struct lpfc_hba   *phba = vport->phba;
3435         int stat = 0;
3436
3437         spin_lock_irq(shost->host_lock);
3438
3439         if (vport->load_flag & FC_UNLOADING) {
3440                 stat = 1;
3441                 goto finished;
3442         }
3443         if (time >= msecs_to_jiffies(30 * 1000)) {
3444                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3445                                 "0461 Scanning longer than 30 "
3446                                 "seconds.  Continuing initialization\n");
3447                 stat = 1;
3448                 goto finished;
3449         }
3450         if (time >= msecs_to_jiffies(15 * 1000) &&
3451             phba->link_state <= LPFC_LINK_DOWN) {
3452                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3453                                 "0465 Link down longer than 15 "
3454                                 "seconds.  Continuing initialization\n");
3455                 stat = 1;
3456                 goto finished;
3457         }
3458
3459         if (vport->port_state != LPFC_VPORT_READY)
3460                 goto finished;
3461         if (vport->num_disc_nodes || vport->fc_prli_sent)
3462                 goto finished;
3463         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3464                 goto finished;
3465         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3466                 goto finished;
3467
3468         stat = 1;
3469
3470 finished:
3471         spin_unlock_irq(shost->host_lock);
3472         return stat;
3473 }
3474
3475 /**
3476  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3477  * @shost: pointer to SCSI host data structure.
3478  *
3479  * This routine initializes a given SCSI host attributes on a FC port. The
3480  * SCSI host can be either on top of a physical port or a virtual port.
3481  **/
3482 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3483 {
3484         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3485         struct lpfc_hba   *phba = vport->phba;
3486         /*
3487          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3488          */
3489
3490         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3491         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3492         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3493
3494         memset(fc_host_supported_fc4s(shost), 0,
3495                sizeof(fc_host_supported_fc4s(shost)));
3496         fc_host_supported_fc4s(shost)[2] = 1;
3497         fc_host_supported_fc4s(shost)[7] = 1;
3498
3499         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3500                                  sizeof fc_host_symbolic_name(shost));
3501
3502         fc_host_supported_speeds(shost) = 0;
3503         if (phba->lmt & LMT_32Gb)
3504                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3505         if (phba->lmt & LMT_16Gb)
3506                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3507         if (phba->lmt & LMT_10Gb)
3508                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3509         if (phba->lmt & LMT_8Gb)
3510                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3511         if (phba->lmt & LMT_4Gb)
3512                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3513         if (phba->lmt & LMT_2Gb)
3514                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3515         if (phba->lmt & LMT_1Gb)
3516                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3517
3518         fc_host_maxframe_size(shost) =
3519                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3520                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3521
3522         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3523
3524         /* This value is also unchanging */
3525         memset(fc_host_active_fc4s(shost), 0,
3526                sizeof(fc_host_active_fc4s(shost)));
3527         fc_host_active_fc4s(shost)[2] = 1;
3528         fc_host_active_fc4s(shost)[7] = 1;
3529
3530         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3531         spin_lock_irq(shost->host_lock);
3532         vport->load_flag &= ~FC_LOADING;
3533         spin_unlock_irq(shost->host_lock);
3534 }
3535
3536 /**
3537  * lpfc_stop_port_s3 - Stop SLI3 device port
3538  * @phba: pointer to lpfc hba data structure.
3539  *
3540  * This routine is invoked to stop an SLI3 device port, it stops the device
3541  * from generating interrupts and stops the device driver's timers for the
3542  * device.
3543  **/
3544 static void
3545 lpfc_stop_port_s3(struct lpfc_hba *phba)
3546 {
3547         /* Clear all interrupt enable conditions */
3548         writel(0, phba->HCregaddr);
3549         readl(phba->HCregaddr); /* flush */
3550         /* Clear all pending interrupts */
3551         writel(0xffffffff, phba->HAregaddr);
3552         readl(phba->HAregaddr); /* flush */
3553
3554         /* Reset some HBA SLI setup states */
3555         lpfc_stop_hba_timers(phba);
3556         phba->pport->work_port_events = 0;
3557 }
3558
3559 /**
3560  * lpfc_stop_port_s4 - Stop SLI4 device port
3561  * @phba: pointer to lpfc hba data structure.
3562  *
3563  * This routine is invoked to stop an SLI4 device port, it stops the device
3564  * from generating interrupts and stops the device driver's timers for the
3565  * device.
3566  **/
3567 static void
3568 lpfc_stop_port_s4(struct lpfc_hba *phba)
3569 {
3570         /* Reset some HBA SLI4 setup states */
3571         lpfc_stop_hba_timers(phba);
3572         phba->pport->work_port_events = 0;
3573         phba->sli4_hba.intr_enable = 0;
3574 }
3575
3576 /**
3577  * lpfc_stop_port - Wrapper function for stopping hba port
3578  * @phba: Pointer to HBA context object.
3579  *
3580  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3581  * the API jump table function pointer from the lpfc_hba struct.
3582  **/
3583 void
3584 lpfc_stop_port(struct lpfc_hba *phba)
3585 {
3586         phba->lpfc_stop_port(phba);
3587 }
3588
3589 /**
3590  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3591  * @phba: Pointer to hba for which this call is being executed.
3592  *
3593  * This routine starts the timer waiting for the FCF rediscovery to complete.
3594  **/
3595 void
3596 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3597 {
3598         unsigned long fcf_redisc_wait_tmo =
3599                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3600         /* Start fcf rediscovery wait period timer */
3601         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3602         spin_lock_irq(&phba->hbalock);
3603         /* Allow action to new fcf asynchronous event */
3604         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3605         /* Mark the FCF rediscovery pending state */
3606         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3607         spin_unlock_irq(&phba->hbalock);
3608 }
3609
3610 /**
3611  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3612  * @ptr: Map to lpfc_hba data structure pointer.
3613  *
3614  * This routine is invoked when waiting for FCF table rediscover has been
3615  * timed out. If new FCF record(s) has (have) been discovered during the
3616  * wait period, a new FCF event shall be added to the FCOE async event
3617  * list, and then worker thread shall be waked up for processing from the
3618  * worker thread context.
3619  **/
3620 static void
3621 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3622 {
3623         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3624
3625         /* Don't send FCF rediscovery event if timer cancelled */
3626         spin_lock_irq(&phba->hbalock);
3627         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3628                 spin_unlock_irq(&phba->hbalock);
3629                 return;
3630         }
3631         /* Clear FCF rediscovery timer pending flag */
3632         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3633         /* FCF rediscovery event to worker thread */
3634         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3635         spin_unlock_irq(&phba->hbalock);
3636         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3637                         "2776 FCF rediscover quiescent timer expired\n");
3638         /* wake up worker thread */
3639         lpfc_worker_wake_up(phba);
3640 }
3641
3642 /**
3643  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3644  * @phba: pointer to lpfc hba data structure.
3645  * @acqe_link: pointer to the async link completion queue entry.
3646  *
3647  * This routine is to parse the SLI4 link-attention link fault code and
3648  * translate it into the base driver's read link attention mailbox command
3649  * status.
3650  *
3651  * Return: Link-attention status in terms of base driver's coding.
3652  **/
3653 static uint16_t
3654 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3655                            struct lpfc_acqe_link *acqe_link)
3656 {
3657         uint16_t latt_fault;
3658
3659         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3660         case LPFC_ASYNC_LINK_FAULT_NONE:
3661         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3662         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3663                 latt_fault = 0;
3664                 break;
3665         default:
3666                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3667                                 "0398 Invalid link fault code: x%x\n",
3668                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3669                 latt_fault = MBXERR_ERROR;
3670                 break;
3671         }
3672         return latt_fault;
3673 }
3674
3675 /**
3676  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3677  * @phba: pointer to lpfc hba data structure.
3678  * @acqe_link: pointer to the async link completion queue entry.
3679  *
3680  * This routine is to parse the SLI4 link attention type and translate it
3681  * into the base driver's link attention type coding.
3682  *
3683  * Return: Link attention type in terms of base driver's coding.
3684  **/
3685 static uint8_t
3686 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3687                           struct lpfc_acqe_link *acqe_link)
3688 {
3689         uint8_t att_type;
3690
3691         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3692         case LPFC_ASYNC_LINK_STATUS_DOWN:
3693         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3694                 att_type = LPFC_ATT_LINK_DOWN;
3695                 break;
3696         case LPFC_ASYNC_LINK_STATUS_UP:
3697                 /* Ignore physical link up events - wait for logical link up */
3698                 att_type = LPFC_ATT_RESERVED;
3699                 break;
3700         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3701                 att_type = LPFC_ATT_LINK_UP;
3702                 break;
3703         default:
3704                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3705                                 "0399 Invalid link attention type: x%x\n",
3706                                 bf_get(lpfc_acqe_link_status, acqe_link));
3707                 att_type = LPFC_ATT_RESERVED;
3708                 break;
3709         }
3710         return att_type;
3711 }
3712
3713 /**
3714  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3715  * @phba: pointer to lpfc hba data structure.
3716  *
3717  * This routine is to get an SLI3 FC port's link speed in Mbps.
3718  *
3719  * Return: link speed in terms of Mbps.
3720  **/
3721 uint32_t
3722 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3723 {
3724         uint32_t link_speed;
3725
3726         if (!lpfc_is_link_up(phba))
3727                 return 0;
3728
3729         if (phba->sli_rev <= LPFC_SLI_REV3) {
3730                 switch (phba->fc_linkspeed) {
3731                 case LPFC_LINK_SPEED_1GHZ:
3732                         link_speed = 1000;
3733                         break;
3734                 case LPFC_LINK_SPEED_2GHZ:
3735                         link_speed = 2000;
3736                         break;
3737                 case LPFC_LINK_SPEED_4GHZ:
3738                         link_speed = 4000;
3739                         break;
3740                 case LPFC_LINK_SPEED_8GHZ:
3741                         link_speed = 8000;
3742                         break;
3743                 case LPFC_LINK_SPEED_10GHZ:
3744                         link_speed = 10000;
3745                         break;
3746                 case LPFC_LINK_SPEED_16GHZ:
3747                         link_speed = 16000;
3748                         break;
3749                 default:
3750                         link_speed = 0;
3751                 }
3752         } else {
3753                 if (phba->sli4_hba.link_state.logical_speed)
3754                         link_speed =
3755                               phba->sli4_hba.link_state.logical_speed;
3756                 else
3757                         link_speed = phba->sli4_hba.link_state.speed;
3758         }
3759         return link_speed;
3760 }
3761
3762 /**
3763  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3764  * @phba: pointer to lpfc hba data structure.
3765  * @evt_code: asynchronous event code.
3766  * @speed_code: asynchronous event link speed code.
3767  *
3768  * This routine is to parse the giving SLI4 async event link speed code into
3769  * value of Mbps for the link speed.
3770  *
3771  * Return: link speed in terms of Mbps.
3772  **/
3773 static uint32_t
3774 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3775                            uint8_t speed_code)
3776 {
3777         uint32_t port_speed;
3778
3779         switch (evt_code) {
3780         case LPFC_TRAILER_CODE_LINK:
3781                 switch (speed_code) {
3782                 case LPFC_ASYNC_LINK_SPEED_ZERO:
3783                         port_speed = 0;
3784                         break;
3785                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3786                         port_speed = 10;
3787                         break;
3788                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3789                         port_speed = 100;
3790                         break;
3791                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3792                         port_speed = 1000;
3793                         break;
3794                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3795                         port_speed = 10000;
3796                         break;
3797                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3798                         port_speed = 20000;
3799                         break;
3800                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3801                         port_speed = 25000;
3802                         break;
3803                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3804                         port_speed = 40000;
3805                         break;
3806                 default:
3807                         port_speed = 0;
3808                 }
3809                 break;
3810         case LPFC_TRAILER_CODE_FC:
3811                 switch (speed_code) {
3812                 case LPFC_FC_LA_SPEED_UNKNOWN:
3813                         port_speed = 0;
3814                         break;
3815                 case LPFC_FC_LA_SPEED_1G:
3816                         port_speed = 1000;
3817                         break;
3818                 case LPFC_FC_LA_SPEED_2G:
3819                         port_speed = 2000;
3820                         break;
3821                 case LPFC_FC_LA_SPEED_4G:
3822                         port_speed = 4000;
3823                         break;
3824                 case LPFC_FC_LA_SPEED_8G:
3825                         port_speed = 8000;
3826                         break;
3827                 case LPFC_FC_LA_SPEED_10G:
3828                         port_speed = 10000;
3829                         break;
3830                 case LPFC_FC_LA_SPEED_16G:
3831                         port_speed = 16000;
3832                         break;
3833                 case LPFC_FC_LA_SPEED_32G:
3834                         port_speed = 32000;
3835                         break;
3836                 default:
3837                         port_speed = 0;
3838                 }
3839                 break;
3840         default:
3841                 port_speed = 0;
3842         }
3843         return port_speed;
3844 }
3845
3846 /**
3847  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3848  * @phba: pointer to lpfc hba data structure.
3849  * @acqe_link: pointer to the async link completion queue entry.
3850  *
3851  * This routine is to handle the SLI4 asynchronous FCoE link event.
3852  **/
3853 static void
3854 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3855                          struct lpfc_acqe_link *acqe_link)
3856 {
3857         struct lpfc_dmabuf *mp;
3858         LPFC_MBOXQ_t *pmb;
3859         MAILBOX_t *mb;
3860         struct lpfc_mbx_read_top *la;
3861         uint8_t att_type;
3862         int rc;
3863
3864         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3865         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3866                 return;
3867         phba->fcoe_eventtag = acqe_link->event_tag;
3868         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3869         if (!pmb) {
3870                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3871                                 "0395 The mboxq allocation failed\n");
3872                 return;
3873         }
3874         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3875         if (!mp) {
3876                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3877                                 "0396 The lpfc_dmabuf allocation failed\n");
3878                 goto out_free_pmb;
3879         }
3880         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3881         if (!mp->virt) {
3882                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3883                                 "0397 The mbuf allocation failed\n");
3884                 goto out_free_dmabuf;
3885         }
3886
3887         /* Cleanup any outstanding ELS commands */
3888         lpfc_els_flush_all_cmd(phba);
3889
3890         /* Block ELS IOCBs until we have done process link event */
3891         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3892
3893         /* Update link event statistics */
3894         phba->sli.slistat.link_event++;
3895
3896         /* Create lpfc_handle_latt mailbox command from link ACQE */
3897         lpfc_read_topology(phba, pmb, mp);
3898         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3899         pmb->vport = phba->pport;
3900
3901         /* Keep the link status for extra SLI4 state machine reference */
3902         phba->sli4_hba.link_state.speed =
3903                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3904                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3905         phba->sli4_hba.link_state.duplex =
3906                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3907         phba->sli4_hba.link_state.status =
3908                                 bf_get(lpfc_acqe_link_status, acqe_link);
3909         phba->sli4_hba.link_state.type =
3910                                 bf_get(lpfc_acqe_link_type, acqe_link);
3911         phba->sli4_hba.link_state.number =
3912                                 bf_get(lpfc_acqe_link_number, acqe_link);
3913         phba->sli4_hba.link_state.fault =
3914                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3915         phba->sli4_hba.link_state.logical_speed =
3916                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3917
3918         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3919                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3920                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3921                         "Logical speed:%dMbps Fault:%d\n",
3922                         phba->sli4_hba.link_state.speed,
3923                         phba->sli4_hba.link_state.topology,
3924                         phba->sli4_hba.link_state.status,
3925                         phba->sli4_hba.link_state.type,
3926                         phba->sli4_hba.link_state.number,
3927                         phba->sli4_hba.link_state.logical_speed,
3928                         phba->sli4_hba.link_state.fault);
3929         /*
3930          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3931          * topology info. Note: Optional for non FC-AL ports.
3932          */
3933         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3934                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3935                 if (rc == MBX_NOT_FINISHED)
3936                         goto out_free_dmabuf;
3937                 return;
3938         }
3939         /*
3940          * For FCoE Mode: fill in all the topology information we need and call
3941          * the READ_TOPOLOGY completion routine to continue without actually
3942          * sending the READ_TOPOLOGY mailbox command to the port.
3943          */
3944         /* Parse and translate status field */
3945         mb = &pmb->u.mb;
3946         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3947
3948         /* Parse and translate link attention fields */
3949         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3950         la->eventTag = acqe_link->event_tag;
3951         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3952         bf_set(lpfc_mbx_read_top_link_spd, la,
3953                (bf_get(lpfc_acqe_link_speed, acqe_link)));
3954
3955         /* Fake the the following irrelvant fields */
3956         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3957         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3958         bf_set(lpfc_mbx_read_top_il, la, 0);
3959         bf_set(lpfc_mbx_read_top_pb, la, 0);
3960         bf_set(lpfc_mbx_read_top_fa, la, 0);
3961         bf_set(lpfc_mbx_read_top_mm, la, 0);
3962
3963         /* Invoke the lpfc_handle_latt mailbox command callback function */
3964         lpfc_mbx_cmpl_read_topology(phba, pmb);
3965
3966         return;
3967
3968 out_free_dmabuf:
3969         kfree(mp);
3970 out_free_pmb:
3971         mempool_free(pmb, phba->mbox_mem_pool);
3972 }
3973
3974 /**
3975  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3976  * @phba: pointer to lpfc hba data structure.
3977  * @acqe_fc: pointer to the async fc completion queue entry.
3978  *
3979  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3980  * that the event was received and then issue a read_topology mailbox command so
3981  * that the rest of the driver will treat it the same as SLI3.
3982  **/
3983 static void
3984 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3985 {
3986         struct lpfc_dmabuf *mp;
3987         LPFC_MBOXQ_t *pmb;
3988         int rc;
3989
3990         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3991             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3992                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3993                                 "2895 Non FC link Event detected.(%d)\n",
3994                                 bf_get(lpfc_trailer_type, acqe_fc));
3995                 return;
3996         }
3997         /* Keep the link status for extra SLI4 state machine reference */
3998         phba->sli4_hba.link_state.speed =
3999                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4000                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4001         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4002         phba->sli4_hba.link_state.topology =
4003                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4004         phba->sli4_hba.link_state.status =
4005                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4006         phba->sli4_hba.link_state.type =
4007                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4008         phba->sli4_hba.link_state.number =
4009                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4010         phba->sli4_hba.link_state.fault =
4011                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4012         phba->sli4_hba.link_state.logical_speed =
4013                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4014         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4015                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4016                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4017                         "%dMbps Fault:%d\n",
4018                         phba->sli4_hba.link_state.speed,
4019                         phba->sli4_hba.link_state.topology,
4020                         phba->sli4_hba.link_state.status,
4021                         phba->sli4_hba.link_state.type,
4022                         phba->sli4_hba.link_state.number,
4023                         phba->sli4_hba.link_state.logical_speed,
4024                         phba->sli4_hba.link_state.fault);
4025         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4026         if (!pmb) {
4027                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4028                                 "2897 The mboxq allocation failed\n");
4029                 return;
4030         }
4031         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4032         if (!mp) {
4033                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4034                                 "2898 The lpfc_dmabuf allocation failed\n");
4035                 goto out_free_pmb;
4036         }
4037         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4038         if (!mp->virt) {
4039                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4040                                 "2899 The mbuf allocation failed\n");
4041                 goto out_free_dmabuf;
4042         }
4043
4044         /* Cleanup any outstanding ELS commands */
4045         lpfc_els_flush_all_cmd(phba);
4046
4047         /* Block ELS IOCBs until we have done process link event */
4048         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4049
4050         /* Update link event statistics */
4051         phba->sli.slistat.link_event++;
4052
4053         /* Create lpfc_handle_latt mailbox command from link ACQE */
4054         lpfc_read_topology(phba, pmb, mp);
4055         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4056         pmb->vport = phba->pport;
4057
4058         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4059         if (rc == MBX_NOT_FINISHED)
4060                 goto out_free_dmabuf;
4061         return;
4062
4063 out_free_dmabuf:
4064         kfree(mp);
4065 out_free_pmb:
4066         mempool_free(pmb, phba->mbox_mem_pool);
4067 }
4068
4069 /**
4070  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4071  * @phba: pointer to lpfc hba data structure.
4072  * @acqe_fc: pointer to the async SLI completion queue entry.
4073  *
4074  * This routine is to handle the SLI4 asynchronous SLI events.
4075  **/
4076 static void
4077 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4078 {
4079         char port_name;
4080         char message[128];
4081         uint8_t status;
4082         uint8_t evt_type;
4083         uint8_t operational = 0;
4084         struct temp_event temp_event_data;
4085         struct lpfc_acqe_misconfigured_event *misconfigured;
4086         struct Scsi_Host  *shost;
4087
4088         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4089
4090         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4091                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4092                         "x%08x SLI Event Type:%d\n",
4093                         acqe_sli->event_data1, acqe_sli->event_data2,
4094                         evt_type);
4095
4096         port_name = phba->Port[0];
4097         if (port_name == 0x00)
4098                 port_name = '?'; /* get port name is empty */
4099
4100         switch (evt_type) {
4101         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4102                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4103                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4104                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4105
4106                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4107                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4108                                 acqe_sli->event_data1, port_name);
4109
4110                 shost = lpfc_shost_from_vport(phba->pport);
4111                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4112                                           sizeof(temp_event_data),
4113                                           (char *)&temp_event_data,
4114                                           SCSI_NL_VID_TYPE_PCI
4115                                           | PCI_VENDOR_ID_EMULEX);
4116                 break;
4117         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4118                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4119                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4120                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4121
4122                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4123                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4124                                 acqe_sli->event_data1, port_name);
4125
4126                 shost = lpfc_shost_from_vport(phba->pport);
4127                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4128                                           sizeof(temp_event_data),
4129                                           (char *)&temp_event_data,
4130                                           SCSI_NL_VID_TYPE_PCI
4131                                           | PCI_VENDOR_ID_EMULEX);
4132                 break;
4133         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4134                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4135                                         &acqe_sli->event_data1;
4136
4137                 /* fetch the status for this port */
4138                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4139                 case LPFC_LINK_NUMBER_0:
4140                         status = bf_get(lpfc_sli_misconfigured_port0_state,
4141                                         &misconfigured->theEvent);
4142                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
4143                                         &misconfigured->theEvent);
4144                         break;
4145                 case LPFC_LINK_NUMBER_1:
4146                         status = bf_get(lpfc_sli_misconfigured_port1_state,
4147                                         &misconfigured->theEvent);
4148                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
4149                                         &misconfigured->theEvent);
4150                         break;
4151                 case LPFC_LINK_NUMBER_2:
4152                         status = bf_get(lpfc_sli_misconfigured_port2_state,
4153                                         &misconfigured->theEvent);
4154                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
4155                                         &misconfigured->theEvent);
4156                         break;
4157                 case LPFC_LINK_NUMBER_3:
4158                         status = bf_get(lpfc_sli_misconfigured_port3_state,
4159                                         &misconfigured->theEvent);
4160                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
4161                                         &misconfigured->theEvent);
4162                         break;
4163                 default:
4164                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4165                                         "3296 "
4166                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4167                                         "event: Invalid link %d",
4168                                         phba->sli4_hba.lnk_info.lnk_no);
4169                         return;
4170                 }
4171
4172                 /* Skip if optic state unchanged */
4173                 if (phba->sli4_hba.lnk_info.optic_state == status)
4174                         return;
4175
4176                 switch (status) {
4177                 case LPFC_SLI_EVENT_STATUS_VALID:
4178                         sprintf(message, "Physical Link is functional");
4179                         break;
4180                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4181                         sprintf(message, "Optics faulted/incorrectly "
4182                                 "installed/not installed - Reseat optics, "
4183                                 "if issue not resolved, replace.");
4184                         break;
4185                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4186                         sprintf(message,
4187                                 "Optics of two types installed - Remove one "
4188                                 "optic or install matching pair of optics.");
4189                         break;
4190                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4191                         sprintf(message, "Incompatible optics - Replace with "
4192                                 "compatible optics for card to function.");
4193                         break;
4194                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4195                         sprintf(message, "Unqualified optics - Replace with "
4196                                 "Avago optics for Warranty and Technical "
4197                                 "Support - Link is%s operational",
4198                                 (operational) ? "" : " not");
4199                         break;
4200                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4201                         sprintf(message, "Uncertified optics - Replace with "
4202                                 "Avago-certified optics to enable link "
4203                                 "operation - Link is%s operational",
4204                                 (operational) ? "" : " not");
4205                         break;
4206                 default:
4207                         /* firmware is reporting a status we don't know about */
4208                         sprintf(message, "Unknown event status x%02x", status);
4209                         break;
4210                 }
4211                 phba->sli4_hba.lnk_info.optic_state = status;
4212                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4213                                 "3176 Port Name %c %s\n", port_name, message);
4214                 break;
4215         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4216                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4217                                 "3192 Remote DPort Test Initiated - "
4218                                 "Event Data1:x%08x Event Data2: x%08x\n",
4219                                 acqe_sli->event_data1, acqe_sli->event_data2);
4220                 break;
4221         default:
4222                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4223                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4224                                 "x%08x SLI Event Type:%d\n",
4225                                 acqe_sli->event_data1, acqe_sli->event_data2,
4226                                 evt_type);
4227                 break;
4228         }
4229 }
4230
4231 /**
4232  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4233  * @vport: pointer to vport data structure.
4234  *
4235  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4236  * response to a CVL event.
4237  *
4238  * Return the pointer to the ndlp with the vport if successful, otherwise
4239  * return NULL.
4240  **/
4241 static struct lpfc_nodelist *
4242 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4243 {
4244         struct lpfc_nodelist *ndlp;
4245         struct Scsi_Host *shost;
4246         struct lpfc_hba *phba;
4247
4248         if (!vport)
4249                 return NULL;
4250         phba = vport->phba;
4251         if (!phba)
4252                 return NULL;
4253         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4254         if (!ndlp) {
4255                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4256                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4257                 if (!ndlp)
4258                         return 0;
4259                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4260                 /* Set the node type */
4261                 ndlp->nlp_type |= NLP_FABRIC;
4262                 /* Put ndlp onto node list */
4263                 lpfc_enqueue_node(vport, ndlp);
4264         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4265                 /* re-setup ndlp without removing from node list */
4266                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4267                 if (!ndlp)
4268                         return 0;
4269         }
4270         if ((phba->pport->port_state < LPFC_FLOGI) &&
4271                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4272                 return NULL;
4273         /* If virtual link is not yet instantiated ignore CVL */
4274         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4275                 && (vport->port_state != LPFC_VPORT_FAILED))
4276                 return NULL;
4277         shost = lpfc_shost_from_vport(vport);
4278         if (!shost)
4279                 return NULL;
4280         lpfc_linkdown_port(vport);
4281         lpfc_cleanup_pending_mbox(vport);
4282         spin_lock_irq(shost->host_lock);
4283         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4284         spin_unlock_irq(shost->host_lock);
4285
4286         return ndlp;
4287 }
4288
4289 /**
4290  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4291  * @vport: pointer to lpfc hba data structure.
4292  *
4293  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4294  * response to a FCF dead event.
4295  **/
4296 static void
4297 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4298 {
4299         struct lpfc_vport **vports;
4300         int i;
4301
4302         vports = lpfc_create_vport_work_array(phba);
4303         if (vports)
4304                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4305                         lpfc_sli4_perform_vport_cvl(vports[i]);
4306         lpfc_destroy_vport_work_array(phba, vports);
4307 }
4308
4309 /**
4310  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4311  * @phba: pointer to lpfc hba data structure.
4312  * @acqe_link: pointer to the async fcoe completion queue entry.
4313  *
4314  * This routine is to handle the SLI4 asynchronous fcoe event.
4315  **/
4316 static void
4317 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4318                         struct lpfc_acqe_fip *acqe_fip)
4319 {
4320         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4321         int rc;
4322         struct lpfc_vport *vport;
4323         struct lpfc_nodelist *ndlp;
4324         struct Scsi_Host  *shost;
4325         int active_vlink_present;
4326         struct lpfc_vport **vports;
4327         int i;
4328
4329         phba->fc_eventTag = acqe_fip->event_tag;
4330         phba->fcoe_eventtag = acqe_fip->event_tag;
4331         switch (event_type) {
4332         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4333         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4334                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4335                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4336                                         LOG_DISCOVERY,
4337                                         "2546 New FCF event, evt_tag:x%x, "
4338                                         "index:x%x\n",
4339                                         acqe_fip->event_tag,
4340                                         acqe_fip->index);
4341                 else
4342                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4343                                         LOG_DISCOVERY,
4344                                         "2788 FCF param modified event, "
4345                                         "evt_tag:x%x, index:x%x\n",
4346                                         acqe_fip->event_tag,
4347                                         acqe_fip->index);
4348                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4349                         /*
4350                          * During period of FCF discovery, read the FCF
4351                          * table record indexed by the event to update
4352                          * FCF roundrobin failover eligible FCF bmask.
4353                          */
4354                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4355                                         LOG_DISCOVERY,
4356                                         "2779 Read FCF (x%x) for updating "
4357                                         "roundrobin FCF failover bmask\n",
4358                                         acqe_fip->index);
4359                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4360                 }
4361
4362                 /* If the FCF discovery is in progress, do nothing. */
4363                 spin_lock_irq(&phba->hbalock);
4364                 if (phba->hba_flag & FCF_TS_INPROG) {
4365                         spin_unlock_irq(&phba->hbalock);
4366                         break;
4367                 }
4368                 /* If fast FCF failover rescan event is pending, do nothing */
4369                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4370                         spin_unlock_irq(&phba->hbalock);
4371                         break;
4372                 }
4373
4374                 /* If the FCF has been in discovered state, do nothing. */
4375                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4376                         spin_unlock_irq(&phba->hbalock);
4377                         break;
4378                 }
4379                 spin_unlock_irq(&phba->hbalock);
4380
4381                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4382                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4383                                 "2770 Start FCF table scan per async FCF "
4384                                 "event, evt_tag:x%x, index:x%x\n",
4385                                 acqe_fip->event_tag, acqe_fip->index);
4386                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4387                                                      LPFC_FCOE_FCF_GET_FIRST);
4388                 if (rc)
4389                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4390                                         "2547 Issue FCF scan read FCF mailbox "
4391                                         "command failed (x%x)\n", rc);
4392                 break;
4393
4394         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4395                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4396                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4397                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4398                         acqe_fip->event_tag);
4399                 break;
4400
4401         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4402                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4403                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4404                         "2549 FCF (x%x) disconnected from network, "
4405                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4406                 /*
4407                  * If we are in the middle of FCF failover process, clear
4408                  * the corresponding FCF bit in the roundrobin bitmap.
4409                  */
4410                 spin_lock_irq(&phba->hbalock);
4411                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4412                         spin_unlock_irq(&phba->hbalock);
4413                         /* Update FLOGI FCF failover eligible FCF bmask */
4414                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4415                         break;
4416                 }
4417                 spin_unlock_irq(&phba->hbalock);
4418
4419                 /* If the event is not for currently used fcf do nothing */
4420                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4421                         break;
4422
4423                 /*
4424                  * Otherwise, request the port to rediscover the entire FCF
4425                  * table for a fast recovery from case that the current FCF
4426                  * is no longer valid as we are not in the middle of FCF
4427                  * failover process already.
4428                  */
4429                 spin_lock_irq(&phba->hbalock);
4430                 /* Mark the fast failover process in progress */
4431                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4432                 spin_unlock_irq(&phba->hbalock);
4433
4434                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4435                                 "2771 Start FCF fast failover process due to "
4436                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4437                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4438                 rc = lpfc_sli4_redisc_fcf_table(phba);
4439                 if (rc) {
4440                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4441                                         LOG_DISCOVERY,
4442                                         "2772 Issue FCF rediscover mabilbox "
4443                                         "command failed, fail through to FCF "
4444                                         "dead event\n");
4445                         spin_lock_irq(&phba->hbalock);
4446                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4447                         spin_unlock_irq(&phba->hbalock);
4448                         /*
4449                          * Last resort will fail over by treating this
4450                          * as a link down to FCF registration.
4451                          */
4452                         lpfc_sli4_fcf_dead_failthrough(phba);
4453                 } else {
4454                         /* Reset FCF roundrobin bmask for new discovery */
4455                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4456                         /*
4457                          * Handling fast FCF failover to a DEAD FCF event is
4458                          * considered equalivant to receiving CVL to all vports.
4459                          */
4460                         lpfc_sli4_perform_all_vport_cvl(phba);
4461                 }
4462                 break;
4463         case LPFC_FIP_EVENT_TYPE_CVL:
4464                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4465                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4466                         "2718 Clear Virtual Link Received for VPI 0x%x"
4467                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4468
4469                 vport = lpfc_find_vport_by_vpid(phba,
4470                                                 acqe_fip->index);
4471                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4472                 if (!ndlp)
4473                         break;
4474                 active_vlink_present = 0;
4475
4476                 vports = lpfc_create_vport_work_array(phba);
4477                 if (vports) {
4478                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4479                                         i++) {
4480                                 if ((!(vports[i]->fc_flag &
4481                                         FC_VPORT_CVL_RCVD)) &&
4482                                         (vports[i]->port_state > LPFC_FDISC)) {
4483                                         active_vlink_present = 1;
4484                                         break;
4485                                 }
4486                         }
4487                         lpfc_destroy_vport_work_array(phba, vports);
4488                 }
4489
4490                 /*
4491                  * Don't re-instantiate if vport is marked for deletion.
4492                  * If we are here first then vport_delete is going to wait
4493                  * for discovery to complete.
4494                  */
4495                 if (!(vport->load_flag & FC_UNLOADING) &&
4496                                         active_vlink_present) {
4497                         /*
4498                          * If there are other active VLinks present,
4499                          * re-instantiate the Vlink using FDISC.
4500                          */
4501                         mod_timer(&ndlp->nlp_delayfunc,
4502                                   jiffies + msecs_to_jiffies(1000));
4503                         shost = lpfc_shost_from_vport(vport);
4504                         spin_lock_irq(shost->host_lock);
4505                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4506                         spin_unlock_irq(shost->host_lock);
4507                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4508                         vport->port_state = LPFC_FDISC;
4509                 } else {
4510                         /*
4511                          * Otherwise, we request port to rediscover
4512                          * the entire FCF table for a fast recovery
4513                          * from possible case that the current FCF
4514                          * is no longer valid if we are not already
4515                          * in the FCF failover process.
4516                          */
4517                         spin_lock_irq(&phba->hbalock);
4518                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4519                                 spin_unlock_irq(&phba->hbalock);
4520                                 break;
4521                         }
4522                         /* Mark the fast failover process in progress */
4523                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4524                         spin_unlock_irq(&phba->hbalock);
4525                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4526                                         LOG_DISCOVERY,
4527                                         "2773 Start FCF failover per CVL, "
4528                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4529                         rc = lpfc_sli4_redisc_fcf_table(phba);
4530                         if (rc) {
4531                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4532                                                 LOG_DISCOVERY,
4533                                                 "2774 Issue FCF rediscover "
4534                                                 "mabilbox command failed, "
4535                                                 "through to CVL event\n");
4536                                 spin_lock_irq(&phba->hbalock);
4537                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4538                                 spin_unlock_irq(&phba->hbalock);
4539                                 /*
4540                                  * Last resort will be re-try on the
4541                                  * the current registered FCF entry.
4542                                  */
4543                                 lpfc_retry_pport_discovery(phba);
4544                         } else
4545                                 /*
4546                                  * Reset FCF roundrobin bmask for new
4547                                  * discovery.
4548                                  */
4549                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4550                 }
4551                 break;
4552         default:
4553                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4554                         "0288 Unknown FCoE event type 0x%x event tag "
4555                         "0x%x\n", event_type, acqe_fip->event_tag);
4556                 break;
4557         }
4558 }
4559
4560 /**
4561  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4562  * @phba: pointer to lpfc hba data structure.
4563  * @acqe_link: pointer to the async dcbx completion queue entry.
4564  *
4565  * This routine is to handle the SLI4 asynchronous dcbx event.
4566  **/
4567 static void
4568 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4569                          struct lpfc_acqe_dcbx *acqe_dcbx)
4570 {
4571         phba->fc_eventTag = acqe_dcbx->event_tag;
4572         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4573                         "0290 The SLI4 DCBX asynchronous event is not "
4574                         "handled yet\n");
4575 }
4576
4577 /**
4578  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4579  * @phba: pointer to lpfc hba data structure.
4580  * @acqe_link: pointer to the async grp5 completion queue entry.
4581  *
4582  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4583  * is an asynchronous notified of a logical link speed change.  The Port
4584  * reports the logical link speed in units of 10Mbps.
4585  **/
4586 static void
4587 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4588                          struct lpfc_acqe_grp5 *acqe_grp5)
4589 {
4590         uint16_t prev_ll_spd;
4591
4592         phba->fc_eventTag = acqe_grp5->event_tag;
4593         phba->fcoe_eventtag = acqe_grp5->event_tag;
4594         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4595         phba->sli4_hba.link_state.logical_speed =
4596                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4597         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4598                         "2789 GRP5 Async Event: Updating logical link speed "
4599                         "from %dMbps to %dMbps\n", prev_ll_spd,
4600                         phba->sli4_hba.link_state.logical_speed);
4601 }
4602
4603 /**
4604  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4605  * @phba: pointer to lpfc hba data structure.
4606  *
4607  * This routine is invoked by the worker thread to process all the pending
4608  * SLI4 asynchronous events.
4609  **/
4610 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4611 {
4612         struct lpfc_cq_event *cq_event;
4613
4614         /* First, declare the async event has been handled */
4615         spin_lock_irq(&phba->hbalock);
4616         phba->hba_flag &= ~ASYNC_EVENT;
4617         spin_unlock_irq(&phba->hbalock);
4618         /* Now, handle all the async events */
4619         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4620                 /* Get the first event from the head of the event queue */
4621                 spin_lock_irq(&phba->hbalock);
4622                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4623                                  cq_event, struct lpfc_cq_event, list);
4624                 spin_unlock_irq(&phba->hbalock);
4625                 /* Process the asynchronous event */
4626                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4627                 case LPFC_TRAILER_CODE_LINK:
4628                         lpfc_sli4_async_link_evt(phba,
4629                                                  &cq_event->cqe.acqe_link);
4630                         break;
4631                 case LPFC_TRAILER_CODE_FCOE:
4632                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4633                         break;
4634                 case LPFC_TRAILER_CODE_DCBX:
4635                         lpfc_sli4_async_dcbx_evt(phba,
4636                                                  &cq_event->cqe.acqe_dcbx);
4637                         break;
4638                 case LPFC_TRAILER_CODE_GRP5:
4639                         lpfc_sli4_async_grp5_evt(phba,
4640                                                  &cq_event->cqe.acqe_grp5);
4641                         break;
4642                 case LPFC_TRAILER_CODE_FC:
4643                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4644                         break;
4645                 case LPFC_TRAILER_CODE_SLI:
4646                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4647                         break;
4648                 default:
4649                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4650                                         "1804 Invalid asynchrous event code: "
4651                                         "x%x\n", bf_get(lpfc_trailer_code,
4652                                         &cq_event->cqe.mcqe_cmpl));
4653                         break;
4654                 }
4655                 /* Free the completion event processed to the free pool */
4656                 lpfc_sli4_cq_event_release(phba, cq_event);
4657         }
4658 }
4659
4660 /**
4661  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4662  * @phba: pointer to lpfc hba data structure.
4663  *
4664  * This routine is invoked by the worker thread to process FCF table
4665  * rediscovery pending completion event.
4666  **/
4667 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4668 {
4669         int rc;
4670
4671         spin_lock_irq(&phba->hbalock);
4672         /* Clear FCF rediscovery timeout event */
4673         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4674         /* Clear driver fast failover FCF record flag */
4675         phba->fcf.failover_rec.flag = 0;
4676         /* Set state for FCF fast failover */
4677         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4678         spin_unlock_irq(&phba->hbalock);
4679
4680         /* Scan FCF table from the first entry to re-discover SAN */
4681         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4682                         "2777 Start post-quiescent FCF table scan\n");
4683         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4684         if (rc)
4685                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4686                                 "2747 Issue FCF scan read FCF mailbox "
4687                                 "command failed 0x%x\n", rc);
4688 }
4689
4690 /**
4691  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4692  * @phba: pointer to lpfc hba data structure.
4693  * @dev_grp: The HBA PCI-Device group number.
4694  *
4695  * This routine is invoked to set up the per HBA PCI-Device group function
4696  * API jump table entries.
4697  *
4698  * Return: 0 if success, otherwise -ENODEV
4699  **/
4700 int
4701 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4702 {
4703         int rc;
4704
4705         /* Set up lpfc PCI-device group */
4706         phba->pci_dev_grp = dev_grp;
4707
4708         /* The LPFC_PCI_DEV_OC uses SLI4 */
4709         if (dev_grp == LPFC_PCI_DEV_OC)
4710                 phba->sli_rev = LPFC_SLI_REV4;
4711
4712         /* Set up device INIT API function jump table */
4713         rc = lpfc_init_api_table_setup(phba, dev_grp);
4714         if (rc)
4715                 return -ENODEV;
4716         /* Set up SCSI API function jump table */
4717         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4718         if (rc)
4719                 return -ENODEV;
4720         /* Set up SLI API function jump table */
4721         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4722         if (rc)
4723                 return -ENODEV;
4724         /* Set up MBOX API function jump table */
4725         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4726         if (rc)
4727                 return -ENODEV;
4728
4729         return 0;
4730 }
4731
4732 /**
4733  * lpfc_log_intr_mode - Log the active interrupt mode
4734  * @phba: pointer to lpfc hba data structure.
4735  * @intr_mode: active interrupt mode adopted.
4736  *
4737  * This routine it invoked to log the currently used active interrupt mode
4738  * to the device.
4739  **/
4740 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4741 {
4742         switch (intr_mode) {
4743         case 0:
4744                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4745                                 "0470 Enable INTx interrupt mode.\n");
4746                 break;
4747         case 1:
4748                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4749                                 "0481 Enabled MSI interrupt mode.\n");
4750                 break;
4751         case 2:
4752                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4753                                 "0480 Enabled MSI-X interrupt mode.\n");
4754                 break;
4755         default:
4756                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4757                                 "0482 Illegal interrupt mode.\n");
4758                 break;
4759         }
4760         return;
4761 }
4762
4763 /**
4764  * lpfc_enable_pci_dev - Enable a generic PCI device.
4765  * @phba: pointer to lpfc hba data structure.
4766  *
4767  * This routine is invoked to enable the PCI device that is common to all
4768  * PCI devices.
4769  *
4770  * Return codes
4771  *      0 - successful
4772  *      other values - error
4773  **/
4774 static int
4775 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4776 {
4777         struct pci_dev *pdev;
4778         int bars = 0;
4779
4780         /* Obtain PCI device reference */
4781         if (!phba->pcidev)
4782                 goto out_error;
4783         else
4784                 pdev = phba->pcidev;
4785         /* Select PCI BARs */
4786         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4787         /* Enable PCI device */
4788         if (pci_enable_device_mem(pdev))
4789                 goto out_error;
4790         /* Request PCI resource for the device */
4791         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4792                 goto out_disable_device;
4793         /* Set up device as PCI master and save state for EEH */
4794         pci_set_master(pdev);
4795         pci_try_set_mwi(pdev);
4796         pci_save_state(pdev);
4797
4798         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4799         if (pci_is_pcie(pdev))
4800                 pdev->needs_freset = 1;
4801
4802         return 0;
4803
4804 out_disable_device:
4805         pci_disable_device(pdev);
4806 out_error:
4807         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4808                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4809         return -ENODEV;
4810 }
4811
4812 /**
4813  * lpfc_disable_pci_dev - Disable a generic PCI device.
4814  * @phba: pointer to lpfc hba data structure.
4815  *
4816  * This routine is invoked to disable the PCI device that is common to all
4817  * PCI devices.
4818  **/
4819 static void
4820 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4821 {
4822         struct pci_dev *pdev;
4823         int bars;
4824
4825         /* Obtain PCI device reference */
4826         if (!phba->pcidev)
4827                 return;
4828         else
4829                 pdev = phba->pcidev;
4830         /* Select PCI BARs */
4831         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4832         /* Release PCI resource and disable PCI device */
4833         pci_release_selected_regions(pdev, bars);
4834         pci_disable_device(pdev);
4835
4836         return;
4837 }
4838
4839 /**
4840  * lpfc_reset_hba - Reset a hba
4841  * @phba: pointer to lpfc hba data structure.
4842  *
4843  * This routine is invoked to reset a hba device. It brings the HBA
4844  * offline, performs a board restart, and then brings the board back
4845  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4846  * on outstanding mailbox commands.
4847  **/
4848 void
4849 lpfc_reset_hba(struct lpfc_hba *phba)
4850 {
4851         /* If resets are disabled then set error state and return. */
4852         if (!phba->cfg_enable_hba_reset) {
4853                 phba->link_state = LPFC_HBA_ERROR;
4854                 return;
4855         }
4856         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4857                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4858         else
4859                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4860         lpfc_offline(phba);
4861         lpfc_sli_brdrestart(phba);
4862         lpfc_online(phba);
4863         lpfc_unblock_mgmt_io(phba);
4864 }
4865
4866 /**
4867  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4868  * @phba: pointer to lpfc hba data structure.
4869  *
4870  * This function enables the PCI SR-IOV virtual functions to a physical
4871  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4872  * enable the number of virtual functions to the physical function. As
4873  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4874  * API call does not considered as an error condition for most of the device.
4875  **/
4876 uint16_t
4877 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4878 {
4879         struct pci_dev *pdev = phba->pcidev;
4880         uint16_t nr_virtfn;
4881         int pos;
4882
4883         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4884         if (pos == 0)
4885                 return 0;
4886
4887         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4888         return nr_virtfn;
4889 }
4890
4891 /**
4892  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4893  * @phba: pointer to lpfc hba data structure.
4894  * @nr_vfn: number of virtual functions to be enabled.
4895  *
4896  * This function enables the PCI SR-IOV virtual functions to a physical
4897  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4898  * enable the number of virtual functions to the physical function. As
4899  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4900  * API call does not considered as an error condition for most of the device.
4901  **/
4902 int
4903 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4904 {
4905         struct pci_dev *pdev = phba->pcidev;
4906         uint16_t max_nr_vfn;
4907         int rc;
4908
4909         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4910         if (nr_vfn > max_nr_vfn) {
4911                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4912                                 "3057 Requested vfs (%d) greater than "
4913                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4914                 return -EINVAL;
4915         }
4916
4917         rc = pci_enable_sriov(pdev, nr_vfn);
4918         if (rc) {
4919                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4920                                 "2806 Failed to enable sriov on this device "
4921                                 "with vfn number nr_vf:%d, rc:%d\n",
4922                                 nr_vfn, rc);
4923         } else
4924                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4925                                 "2807 Successful enable sriov on this device "
4926                                 "with vfn number nr_vf:%d\n", nr_vfn);
4927         return rc;
4928 }
4929
4930 /**
4931  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4932  * @phba: pointer to lpfc hba data structure.
4933  *
4934  * This routine is invoked to set up the driver internal resources specific to
4935  * support the SLI-3 HBA device it attached to.
4936  *
4937  * Return codes
4938  *      0 - successful
4939  *      other values - error
4940  **/
4941 static int
4942 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4943 {
4944         struct lpfc_sli *psli;
4945         int rc;
4946
4947         /*
4948          * Initialize timers used by driver
4949          */
4950
4951         /* Heartbeat timer */
4952         init_timer(&phba->hb_tmofunc);
4953         phba->hb_tmofunc.function = lpfc_hb_timeout;
4954         phba->hb_tmofunc.data = (unsigned long)phba;
4955
4956         psli = &phba->sli;
4957         /* MBOX heartbeat timer */
4958         init_timer(&psli->mbox_tmo);
4959         psli->mbox_tmo.function = lpfc_mbox_timeout;
4960         psli->mbox_tmo.data = (unsigned long) phba;
4961         /* FCP polling mode timer */
4962         init_timer(&phba->fcp_poll_timer);
4963         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4964         phba->fcp_poll_timer.data = (unsigned long) phba;
4965         /* Fabric block timer */
4966         init_timer(&phba->fabric_block_timer);
4967         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4968         phba->fabric_block_timer.data = (unsigned long) phba;
4969         /* EA polling mode timer */
4970         init_timer(&phba->eratt_poll);
4971         phba->eratt_poll.function = lpfc_poll_eratt;
4972         phba->eratt_poll.data = (unsigned long) phba;
4973
4974         /* Host attention work mask setup */
4975         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4976         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4977
4978         /* Get all the module params for configuring this host */
4979         lpfc_get_cfgparam(phba);
4980         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4981                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4982                 /* check for menlo minimum sg count */
4983                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4984                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4985         }
4986
4987         if (!phba->sli.ring)
4988                 phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING *
4989                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4990         if (!phba->sli.ring)
4991                 return -ENOMEM;
4992
4993         /*
4994          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4995          * used to create the sg_dma_buf_pool must be dynamically calculated.
4996          */
4997
4998         /* Initialize the host templates the configured values. */
4999         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5000         lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt;
5001
5002         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5003         if (phba->cfg_enable_bg) {
5004                 /*
5005                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5006                  * the FCP rsp, and a BDE for each. Sice we have no control
5007                  * over how many protection data segments the SCSI Layer
5008                  * will hand us (ie: there could be one for every block
5009                  * in the IO), we just allocate enough BDEs to accomidate
5010                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5011                  * minimize the risk of running out.
5012                  */
5013                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5014                         sizeof(struct fcp_rsp) +
5015                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5016
5017                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5018                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5019
5020                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5021                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5022         } else {
5023                 /*
5024                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5025                  * the FCP rsp, a BDE for each, and a BDE for up to
5026                  * cfg_sg_seg_cnt data segments.
5027                  */
5028                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5029                         sizeof(struct fcp_rsp) +
5030                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5031
5032                 /* Total BDEs in BPL for scsi_sg_list */
5033                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5034         }
5035
5036         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5037                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5038                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5039                         phba->cfg_total_seg_cnt);
5040
5041         phba->max_vpi = LPFC_MAX_VPI;
5042         /* This will be set to correct value after config_port mbox */
5043         phba->max_vports = 0;
5044
5045         /*
5046          * Initialize the SLI Layer to run with lpfc HBAs.
5047          */
5048         lpfc_sli_setup(phba);
5049         lpfc_sli_queue_setup(phba);
5050
5051         /* Allocate device driver memory */
5052         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5053                 return -ENOMEM;
5054
5055         /*
5056          * Enable sr-iov virtual functions if supported and configured
5057          * through the module parameter.
5058          */
5059         if (phba->cfg_sriov_nr_virtfn > 0) {
5060                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5061                                                  phba->cfg_sriov_nr_virtfn);
5062                 if (rc) {
5063                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5064                                         "2808 Requested number of SR-IOV "
5065                                         "virtual functions (%d) is not "
5066                                         "supported\n",
5067                                         phba->cfg_sriov_nr_virtfn);
5068                         phba->cfg_sriov_nr_virtfn = 0;
5069                 }
5070         }
5071
5072         return 0;
5073 }
5074
5075 /**
5076  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5077  * @phba: pointer to lpfc hba data structure.
5078  *
5079  * This routine is invoked to unset the driver internal resources set up
5080  * specific for supporting the SLI-3 HBA device it attached to.
5081  **/
5082 static void
5083 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5084 {
5085         /* Free device driver memory allocated */
5086         lpfc_mem_free_all(phba);
5087
5088         return;
5089 }
5090
5091 /**
5092  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5093  * @phba: pointer to lpfc hba data structure.
5094  *
5095  * This routine is invoked to set up the driver internal resources specific to
5096  * support the SLI-4 HBA device it attached to.
5097  *
5098  * Return codes
5099  *      0 - successful
5100  *      other values - error
5101  **/
5102 static int
5103 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5104 {
5105         struct lpfc_vector_map_info *cpup;
5106         struct lpfc_sli *psli;
5107         LPFC_MBOXQ_t *mboxq;
5108         int rc, i, hbq_count, max_buf_size;
5109         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5110         struct lpfc_mqe *mqe;
5111         int longs;
5112         int fof_vectors = 0;
5113
5114         /* Get all the module params for configuring this host */
5115         lpfc_get_cfgparam(phba);
5116
5117         /* Before proceed, wait for POST done and device ready */
5118         rc = lpfc_sli4_post_status_check(phba);
5119         if (rc)
5120                 return -ENODEV;
5121
5122         /*
5123          * Initialize timers used by driver
5124          */
5125
5126         /* Heartbeat timer */
5127         init_timer(&phba->hb_tmofunc);
5128         phba->hb_tmofunc.function = lpfc_hb_timeout;
5129         phba->hb_tmofunc.data = (unsigned long)phba;
5130         init_timer(&phba->rrq_tmr);
5131         phba->rrq_tmr.function = lpfc_rrq_timeout;
5132         phba->rrq_tmr.data = (unsigned long)phba;
5133
5134         psli = &phba->sli;
5135         /* MBOX heartbeat timer */
5136         init_timer(&psli->mbox_tmo);
5137         psli->mbox_tmo.function = lpfc_mbox_timeout;
5138         psli->mbox_tmo.data = (unsigned long) phba;
5139         /* Fabric block timer */
5140         init_timer(&phba->fabric_block_timer);
5141         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5142         phba->fabric_block_timer.data = (unsigned long) phba;
5143         /* EA polling mode timer */
5144         init_timer(&phba->eratt_poll);
5145         phba->eratt_poll.function = lpfc_poll_eratt;
5146         phba->eratt_poll.data = (unsigned long) phba;
5147         /* FCF rediscover timer */
5148         init_timer(&phba->fcf.redisc_wait);
5149         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5150         phba->fcf.redisc_wait.data = (unsigned long)phba;
5151
5152         /*
5153          * Control structure for handling external multi-buffer mailbox
5154          * command pass-through.
5155          */
5156         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5157                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5158         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5159
5160         phba->max_vpi = LPFC_MAX_VPI;
5161
5162         /* This will be set to correct value after the read_config mbox */
5163         phba->max_vports = 0;
5164
5165         /* Program the default value of vlan_id and fc_map */
5166         phba->valid_vlan = 0;
5167         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5168         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5169         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5170
5171         /*
5172          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5173          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5174          */
5175         if (!phba->sli.ring)
5176                 phba->sli.ring = kzalloc(
5177                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5178                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5179         if (!phba->sli.ring)
5180                 return -ENOMEM;
5181
5182         /*
5183          * It doesn't matter what family our adapter is in, we are
5184          * limited to 2 Pages, 512 SGEs, for our SGL.
5185          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5186          */
5187         max_buf_size = (2 * SLI4_PAGE_SIZE);
5188         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5189                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5190
5191         /*
5192          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5193          * used to create the sg_dma_buf_pool must be dynamically calculated.
5194          */
5195
5196         if (phba->cfg_enable_bg) {
5197                 /*
5198                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5199                  * the FCP rsp, and a SGE for each. Sice we have no control
5200                  * over how many protection data segments the SCSI Layer
5201                  * will hand us (ie: there could be one for every block
5202                  * in the IO), we just allocate enough SGEs to accomidate
5203                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5204                  * minimize the risk of running out.
5205                  */
5206                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5207                         sizeof(struct fcp_rsp) + max_buf_size;
5208
5209                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5210                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5211
5212                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5213                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5214         } else {
5215                 /*
5216                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5217                  * the FCP rsp, a SGE for each, and a SGE for up to
5218                  * cfg_sg_seg_cnt data segments.
5219                  */
5220                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5221                         sizeof(struct fcp_rsp) +
5222                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5223
5224                 /* Total SGEs for scsi_sg_list */
5225                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5226                 /*
5227                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5228                  * to post 1 page for the SGL.
5229                  */
5230         }
5231
5232         /* Initialize the host templates with the updated values. */
5233         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5234         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5235
5236         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5237                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5238         else
5239                 phba->cfg_sg_dma_buf_size =
5240                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5241
5242         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5243                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5244                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5245                         phba->cfg_total_seg_cnt);
5246
5247         /* Initialize buffer queue management fields */
5248         hbq_count = lpfc_sli_hbq_count();
5249         for (i = 0; i < hbq_count; ++i)
5250                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5251         INIT_LIST_HEAD(&phba->rb_pend_list);
5252         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5253         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5254
5255         /*
5256          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5257          */
5258         /* Initialize the Abort scsi buffer list used by driver */
5259         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5260         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5261         /* This abort list used by worker thread */
5262         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5263
5264         /*
5265          * Initialize driver internal slow-path work queues
5266          */
5267
5268         /* Driver internel slow-path CQ Event pool */
5269         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5270         /* Response IOCB work queue list */
5271         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5272         /* Asynchronous event CQ Event work queue list */
5273         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5274         /* Fast-path XRI aborted CQ Event work queue list */
5275         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5276         /* Slow-path XRI aborted CQ Event work queue list */
5277         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5278         /* Receive queue CQ Event work queue list */
5279         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5280
5281         /* Initialize extent block lists. */
5282         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5283         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5284         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5285         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5286
5287         /* initialize optic_state to 0xFF */
5288         phba->sli4_hba.lnk_info.optic_state = 0xff;
5289
5290         /* Initialize the driver internal SLI layer lists. */
5291         lpfc_sli_setup(phba);
5292         lpfc_sli_queue_setup(phba);
5293
5294         /* Allocate device driver memory */
5295         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5296         if (rc)
5297                 return -ENOMEM;
5298
5299         /* IF Type 2 ports get initialized now. */
5300         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5301             LPFC_SLI_INTF_IF_TYPE_2) {
5302                 rc = lpfc_pci_function_reset(phba);
5303                 if (unlikely(rc))
5304                         return -ENODEV;
5305                 phba->temp_sensor_support = 1;
5306         }
5307
5308         /* Create the bootstrap mailbox command */
5309         rc = lpfc_create_bootstrap_mbox(phba);
5310         if (unlikely(rc))
5311                 goto out_free_mem;
5312
5313         /* Set up the host's endian order with the device. */
5314         rc = lpfc_setup_endian_order(phba);
5315         if (unlikely(rc))
5316                 goto out_free_bsmbx;
5317
5318         /* Set up the hba's configuration parameters. */
5319         rc = lpfc_sli4_read_config(phba);
5320         if (unlikely(rc))
5321                 goto out_free_bsmbx;
5322         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5323         if (unlikely(rc))
5324                 goto out_free_bsmbx;
5325
5326         /* IF Type 0 ports get initialized now. */
5327         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5328             LPFC_SLI_INTF_IF_TYPE_0) {
5329                 rc = lpfc_pci_function_reset(phba);
5330                 if (unlikely(rc))
5331                         goto out_free_bsmbx;
5332         }
5333
5334         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5335                                                        GFP_KERNEL);
5336         if (!mboxq) {
5337                 rc = -ENOMEM;
5338                 goto out_free_bsmbx;
5339         }
5340
5341         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5342         lpfc_supported_pages(mboxq);
5343         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5344         if (!rc) {
5345                 mqe = &mboxq->u.mqe;
5346                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5347                        LPFC_MAX_SUPPORTED_PAGES);
5348                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5349                         switch (pn_page[i]) {
5350                         case LPFC_SLI4_PARAMETERS:
5351                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5352                                 break;
5353                         default:
5354                                 break;
5355                         }
5356                 }
5357                 /* Read the port's SLI4 Parameters capabilities if supported. */
5358                 if (phba->sli4_hba.pc_sli4_params.supported)
5359                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5360                 if (rc) {
5361                         mempool_free(mboxq, phba->mbox_mem_pool);
5362                         rc = -EIO;
5363                         goto out_free_bsmbx;
5364                 }
5365         }
5366         /*
5367          * Get sli4 parameters that override parameters from Port capabilities.
5368          * If this call fails, it isn't critical unless the SLI4 parameters come
5369          * back in conflict.
5370          */
5371         rc = lpfc_get_sli4_parameters(phba, mboxq);
5372         if (rc) {
5373                 if (phba->sli4_hba.extents_in_use &&
5374                     phba->sli4_hba.rpi_hdrs_in_use) {
5375                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5376                                 "2999 Unsupported SLI4 Parameters "
5377                                 "Extents and RPI headers enabled.\n");
5378                         goto out_free_bsmbx;
5379                 }
5380         }
5381         mempool_free(mboxq, phba->mbox_mem_pool);
5382
5383         /* Verify OAS is supported */
5384         lpfc_sli4_oas_verify(phba);
5385         if (phba->cfg_fof)
5386                 fof_vectors = 1;
5387
5388         /* Verify all the SLI4 queues */
5389         rc = lpfc_sli4_queue_verify(phba);
5390         if (rc)
5391                 goto out_free_bsmbx;
5392
5393         /* Create driver internal CQE event pool */
5394         rc = lpfc_sli4_cq_event_pool_create(phba);
5395         if (rc)
5396                 goto out_free_bsmbx;
5397
5398         /* Initialize sgl lists per host */
5399         lpfc_init_sgl_list(phba);
5400
5401         /* Allocate and initialize active sgl array */
5402         rc = lpfc_init_active_sgl_array(phba);
5403         if (rc) {
5404                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5405                                 "1430 Failed to initialize sgl list.\n");
5406                 goto out_destroy_cq_event_pool;
5407         }
5408         rc = lpfc_sli4_init_rpi_hdrs(phba);
5409         if (rc) {
5410                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5411                                 "1432 Failed to initialize rpi headers.\n");
5412                 goto out_free_active_sgl;
5413         }
5414
5415         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5416         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5417         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5418                                          GFP_KERNEL);
5419         if (!phba->fcf.fcf_rr_bmask) {
5420                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5421                                 "2759 Failed allocate memory for FCF round "
5422                                 "robin failover bmask\n");
5423                 rc = -ENOMEM;
5424                 goto out_remove_rpi_hdrs;
5425         }
5426
5427         phba->sli4_hba.fcp_eq_hdl =
5428                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5429                             (fof_vectors + phba->cfg_fcp_io_channel)),
5430                             GFP_KERNEL);
5431         if (!phba->sli4_hba.fcp_eq_hdl) {
5432                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5433                                 "2572 Failed allocate memory for "
5434                                 "fast-path per-EQ handle array\n");
5435                 rc = -ENOMEM;
5436                 goto out_free_fcf_rr_bmask;
5437         }
5438
5439         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5440                                   (fof_vectors +
5441                                    phba->cfg_fcp_io_channel)), GFP_KERNEL);
5442         if (!phba->sli4_hba.msix_entries) {
5443                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5444                                 "2573 Failed allocate memory for msi-x "
5445                                 "interrupt vector entries\n");
5446                 rc = -ENOMEM;
5447                 goto out_free_fcp_eq_hdl;
5448         }
5449
5450         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5451                                          phba->sli4_hba.num_present_cpu),
5452                                          GFP_KERNEL);
5453         if (!phba->sli4_hba.cpu_map) {
5454                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5455                                 "3327 Failed allocate memory for msi-x "
5456                                 "interrupt vector mapping\n");
5457                 rc = -ENOMEM;
5458                 goto out_free_msix;
5459         }
5460         if (lpfc_used_cpu == NULL) {
5461                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5462                                          GFP_KERNEL);
5463                 if (!lpfc_used_cpu) {
5464                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5465                                         "3335 Failed allocate memory for msi-x "
5466                                         "interrupt vector mapping\n");
5467                         kfree(phba->sli4_hba.cpu_map);
5468                         rc = -ENOMEM;
5469                         goto out_free_msix;
5470                 }
5471                 for (i = 0; i < lpfc_present_cpu; i++)
5472                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5473         }
5474
5475         /* Initialize io channels for round robin */
5476         cpup = phba->sli4_hba.cpu_map;
5477         rc = 0;
5478         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5479                 cpup->channel_id = rc;
5480                 rc++;
5481                 if (rc >= phba->cfg_fcp_io_channel)
5482                         rc = 0;
5483         }
5484
5485         /*
5486          * Enable sr-iov virtual functions if supported and configured
5487          * through the module parameter.
5488          */
5489         if (phba->cfg_sriov_nr_virtfn > 0) {
5490                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5491                                                  phba->cfg_sriov_nr_virtfn);
5492                 if (rc) {
5493                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5494                                         "3020 Requested number of SR-IOV "
5495                                         "virtual functions (%d) is not "
5496                                         "supported\n",
5497                                         phba->cfg_sriov_nr_virtfn);
5498                         phba->cfg_sriov_nr_virtfn = 0;
5499                 }
5500         }
5501
5502         return 0;
5503
5504 out_free_msix:
5505         kfree(phba->sli4_hba.msix_entries);
5506 out_free_fcp_eq_hdl:
5507         kfree(phba->sli4_hba.fcp_eq_hdl);
5508 out_free_fcf_rr_bmask:
5509         kfree(phba->fcf.fcf_rr_bmask);
5510 out_remove_rpi_hdrs:
5511         lpfc_sli4_remove_rpi_hdrs(phba);
5512 out_free_active_sgl:
5513         lpfc_free_active_sgl(phba);
5514 out_destroy_cq_event_pool:
5515         lpfc_sli4_cq_event_pool_destroy(phba);
5516 out_free_bsmbx:
5517         lpfc_destroy_bootstrap_mbox(phba);
5518 out_free_mem:
5519         lpfc_mem_free(phba);
5520         return rc;
5521 }
5522
5523 /**
5524  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5525  * @phba: pointer to lpfc hba data structure.
5526  *
5527  * This routine is invoked to unset the driver internal resources set up
5528  * specific for supporting the SLI-4 HBA device it attached to.
5529  **/
5530 static void
5531 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5532 {
5533         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5534
5535         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5536         kfree(phba->sli4_hba.cpu_map);
5537         phba->sli4_hba.num_present_cpu = 0;
5538         phba->sli4_hba.num_online_cpu = 0;
5539         phba->sli4_hba.curr_disp_cpu = 0;
5540
5541         /* Free memory allocated for msi-x interrupt vector entries */
5542         kfree(phba->sli4_hba.msix_entries);
5543
5544         /* Free memory allocated for fast-path work queue handles */
5545         kfree(phba->sli4_hba.fcp_eq_hdl);
5546
5547         /* Free the allocated rpi headers. */
5548         lpfc_sli4_remove_rpi_hdrs(phba);
5549         lpfc_sli4_remove_rpis(phba);
5550
5551         /* Free eligible FCF index bmask */
5552         kfree(phba->fcf.fcf_rr_bmask);
5553
5554         /* Free the ELS sgl list */
5555         lpfc_free_active_sgl(phba);
5556         lpfc_free_els_sgl_list(phba);
5557
5558         /* Free the completion queue EQ event pool */
5559         lpfc_sli4_cq_event_release_all(phba);
5560         lpfc_sli4_cq_event_pool_destroy(phba);
5561
5562         /* Release resource identifiers. */
5563         lpfc_sli4_dealloc_resource_identifiers(phba);
5564
5565         /* Free the bsmbx region. */
5566         lpfc_destroy_bootstrap_mbox(phba);
5567
5568         /* Free the SLI Layer memory with SLI4 HBAs */
5569         lpfc_mem_free_all(phba);
5570
5571         /* Free the current connect table */
5572         list_for_each_entry_safe(conn_entry, next_conn_entry,
5573                 &phba->fcf_conn_rec_list, list) {
5574                 list_del_init(&conn_entry->list);
5575                 kfree(conn_entry);
5576         }
5577
5578         return;
5579 }
5580
5581 /**
5582  * lpfc_init_api_table_setup - Set up init api function jump table
5583  * @phba: The hba struct for which this call is being executed.
5584  * @dev_grp: The HBA PCI-Device group number.
5585  *
5586  * This routine sets up the device INIT interface API function jump table
5587  * in @phba struct.
5588  *
5589  * Returns: 0 - success, -ENODEV - failure.
5590  **/
5591 int
5592 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5593 {
5594         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5595         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5596         phba->lpfc_selective_reset = lpfc_selective_reset;
5597         switch (dev_grp) {
5598         case LPFC_PCI_DEV_LP:
5599                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5600                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5601                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5602                 break;
5603         case LPFC_PCI_DEV_OC:
5604                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5605                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5606                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5607                 break;
5608         default:
5609                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5610                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5611                                 dev_grp);
5612                 return -ENODEV;
5613                 break;
5614         }
5615         return 0;
5616 }
5617
5618 /**
5619  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5620  * @phba: pointer to lpfc hba data structure.
5621  *
5622  * This routine is invoked to set up the driver internal resources before the
5623  * device specific resource setup to support the HBA device it attached to.
5624  *
5625  * Return codes
5626  *      0 - successful
5627  *      other values - error
5628  **/
5629 static int
5630 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5631 {
5632         /*
5633          * Driver resources common to all SLI revisions
5634          */
5635         atomic_set(&phba->fast_event_count, 0);
5636         spin_lock_init(&phba->hbalock);
5637
5638         /* Initialize ndlp management spinlock */
5639         spin_lock_init(&phba->ndlp_lock);
5640
5641         INIT_LIST_HEAD(&phba->port_list);
5642         INIT_LIST_HEAD(&phba->work_list);
5643         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5644
5645         /* Initialize the wait queue head for the kernel thread */
5646         init_waitqueue_head(&phba->work_waitq);
5647
5648         /* Initialize the scsi buffer list used by driver for scsi IO */
5649         spin_lock_init(&phba->scsi_buf_list_get_lock);
5650         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5651         spin_lock_init(&phba->scsi_buf_list_put_lock);
5652         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5653
5654         /* Initialize the fabric iocb list */
5655         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5656
5657         /* Initialize list to save ELS buffers */
5658         INIT_LIST_HEAD(&phba->elsbuf);
5659
5660         /* Initialize FCF connection rec list */
5661         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5662
5663         /* Initialize OAS configuration list */
5664         spin_lock_init(&phba->devicelock);
5665         INIT_LIST_HEAD(&phba->luns);
5666
5667         return 0;
5668 }
5669
5670 /**
5671  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5672  * @phba: pointer to lpfc hba data structure.
5673  *
5674  * This routine is invoked to set up the driver internal resources after the
5675  * device specific resource setup to support the HBA device it attached to.
5676  *
5677  * Return codes
5678  *      0 - successful
5679  *      other values - error
5680  **/
5681 static int
5682 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5683 {
5684         int error;
5685
5686         /* Startup the kernel thread for this host adapter. */
5687         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5688                                           "lpfc_worker_%d", phba->brd_no);
5689         if (IS_ERR(phba->worker_thread)) {
5690                 error = PTR_ERR(phba->worker_thread);
5691                 return error;
5692         }
5693
5694         return 0;
5695 }
5696
5697 /**
5698  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5699  * @phba: pointer to lpfc hba data structure.
5700  *
5701  * This routine is invoked to unset the driver internal resources set up after
5702  * the device specific resource setup for supporting the HBA device it
5703  * attached to.
5704  **/
5705 static void
5706 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5707 {
5708         /* Stop kernel worker thread */
5709         kthread_stop(phba->worker_thread);
5710 }
5711
5712 /**
5713  * lpfc_free_iocb_list - Free iocb list.
5714  * @phba: pointer to lpfc hba data structure.
5715  *
5716  * This routine is invoked to free the driver's IOCB list and memory.
5717  **/
5718 static void
5719 lpfc_free_iocb_list(struct lpfc_hba *phba)
5720 {
5721         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5722
5723         spin_lock_irq(&phba->hbalock);
5724         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5725                                  &phba->lpfc_iocb_list, list) {
5726                 list_del(&iocbq_entry->list);
5727                 kfree(iocbq_entry);
5728                 phba->total_iocbq_bufs--;
5729         }
5730         spin_unlock_irq(&phba->hbalock);
5731
5732         return;
5733 }
5734
5735 /**
5736  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5737  * @phba: pointer to lpfc hba data structure.
5738  *
5739  * This routine is invoked to allocate and initizlize the driver's IOCB
5740  * list and set up the IOCB tag array accordingly.
5741  *
5742  * Return codes
5743  *      0 - successful
5744  *      other values - error
5745  **/
5746 static int
5747 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5748 {
5749         struct lpfc_iocbq *iocbq_entry = NULL;
5750         uint16_t iotag;
5751         int i;
5752
5753         /* Initialize and populate the iocb list per host.  */
5754         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5755         for (i = 0; i < iocb_count; i++) {
5756                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5757                 if (iocbq_entry == NULL) {
5758                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5759                                 "expected %d count. Unloading driver.\n",
5760                                 __func__, i, LPFC_IOCB_LIST_CNT);
5761                         goto out_free_iocbq;
5762                 }
5763
5764                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5765                 if (iotag == 0) {
5766                         kfree(iocbq_entry);
5767                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5768                                 "Unloading driver.\n", __func__);
5769                         goto out_free_iocbq;
5770                 }
5771                 iocbq_entry->sli4_lxritag = NO_XRI;
5772                 iocbq_entry->sli4_xritag = NO_XRI;
5773
5774                 spin_lock_irq(&phba->hbalock);
5775                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5776                 phba->total_iocbq_bufs++;
5777                 spin_unlock_irq(&phba->hbalock);
5778         }
5779
5780         return 0;
5781
5782 out_free_iocbq:
5783         lpfc_free_iocb_list(phba);
5784
5785         return -ENOMEM;
5786 }
5787
5788 /**
5789  * lpfc_free_sgl_list - Free a given sgl list.
5790  * @phba: pointer to lpfc hba data structure.
5791  * @sglq_list: pointer to the head of sgl list.
5792  *
5793  * This routine is invoked to free a give sgl list and memory.
5794  **/
5795 void
5796 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5797 {
5798         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5799
5800         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5801                 list_del(&sglq_entry->list);
5802                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5803                 kfree(sglq_entry);
5804         }
5805 }
5806
5807 /**
5808  * lpfc_free_els_sgl_list - Free els sgl list.
5809  * @phba: pointer to lpfc hba data structure.
5810  *
5811  * This routine is invoked to free the driver's els sgl list and memory.
5812  **/
5813 static void
5814 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5815 {
5816         LIST_HEAD(sglq_list);
5817         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5818
5819         /* Retrieve all els sgls from driver list */
5820         spin_lock_irq(&phba->hbalock);
5821         spin_lock(&pring->ring_lock);
5822         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5823         spin_unlock(&pring->ring_lock);
5824         spin_unlock_irq(&phba->hbalock);
5825
5826         /* Now free the sgl list */
5827         lpfc_free_sgl_list(phba, &sglq_list);
5828 }
5829
5830 /**
5831  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5832  * @phba: pointer to lpfc hba data structure.
5833  *
5834  * This routine is invoked to allocate the driver's active sgl memory.
5835  * This array will hold the sglq_entry's for active IOs.
5836  **/
5837 static int
5838 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5839 {
5840         int size;
5841         size = sizeof(struct lpfc_sglq *);
5842         size *= phba->sli4_hba.max_cfg_param.max_xri;
5843
5844         phba->sli4_hba.lpfc_sglq_active_list =
5845                 kzalloc(size, GFP_KERNEL);
5846         if (!phba->sli4_hba.lpfc_sglq_active_list)
5847                 return -ENOMEM;
5848         return 0;
5849 }
5850
5851 /**
5852  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5853  * @phba: pointer to lpfc hba data structure.
5854  *
5855  * This routine is invoked to walk through the array of active sglq entries
5856  * and free all of the resources.
5857  * This is just a place holder for now.
5858  **/
5859 static void
5860 lpfc_free_active_sgl(struct lpfc_hba *phba)
5861 {
5862         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5863 }
5864
5865 /**
5866  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5867  * @phba: pointer to lpfc hba data structure.
5868  *
5869  * This routine is invoked to allocate and initizlize the driver's sgl
5870  * list and set up the sgl xritag tag array accordingly.
5871  *
5872  **/
5873 static void
5874 lpfc_init_sgl_list(struct lpfc_hba *phba)
5875 {
5876         /* Initialize and populate the sglq list per host/VF. */
5877         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5878         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5879
5880         /* els xri-sgl book keeping */
5881         phba->sli4_hba.els_xri_cnt = 0;
5882
5883         /* scsi xri-buffer book keeping */
5884         phba->sli4_hba.scsi_xri_cnt = 0;
5885 }
5886
5887 /**
5888  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5889  * @phba: pointer to lpfc hba data structure.
5890  *
5891  * This routine is invoked to post rpi header templates to the
5892  * port for those SLI4 ports that do not support extents.  This routine
5893  * posts a PAGE_SIZE memory region to the port to hold up to
5894  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5895  * and should be called only when interrupts are disabled.
5896  *
5897  * Return codes
5898  *      0 - successful
5899  *      -ERROR - otherwise.
5900  **/
5901 int
5902 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5903 {
5904         int rc = 0;
5905         struct lpfc_rpi_hdr *rpi_hdr;
5906
5907         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5908         if (!phba->sli4_hba.rpi_hdrs_in_use)
5909                 return rc;
5910         if (phba->sli4_hba.extents_in_use)
5911                 return -EIO;
5912
5913         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5914         if (!rpi_hdr) {
5915                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5916                                 "0391 Error during rpi post operation\n");
5917                 lpfc_sli4_remove_rpis(phba);
5918                 rc = -ENODEV;
5919         }
5920
5921         return rc;
5922 }
5923
5924 /**
5925  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5926  * @phba: pointer to lpfc hba data structure.
5927  *
5928  * This routine is invoked to allocate a single 4KB memory region to
5929  * support rpis and stores them in the phba.  This single region
5930  * provides support for up to 64 rpis.  The region is used globally
5931  * by the device.
5932  *
5933  * Returns:
5934  *   A valid rpi hdr on success.
5935  *   A NULL pointer on any failure.
5936  **/
5937 struct lpfc_rpi_hdr *
5938 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5939 {
5940         uint16_t rpi_limit, curr_rpi_range;
5941         struct lpfc_dmabuf *dmabuf;
5942         struct lpfc_rpi_hdr *rpi_hdr;
5943         uint32_t rpi_count;
5944
5945         /*
5946          * If the SLI4 port supports extents, posting the rpi header isn't
5947          * required.  Set the expected maximum count and let the actual value
5948          * get set when extents are fully allocated.
5949          */
5950         if (!phba->sli4_hba.rpi_hdrs_in_use)
5951                 return NULL;
5952         if (phba->sli4_hba.extents_in_use)
5953                 return NULL;
5954
5955         /* The limit on the logical index is just the max_rpi count. */
5956         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5957         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5958
5959         spin_lock_irq(&phba->hbalock);
5960         /*
5961          * Establish the starting RPI in this header block.  The starting
5962          * rpi is normalized to a zero base because the physical rpi is
5963          * port based.
5964          */
5965         curr_rpi_range = phba->sli4_hba.next_rpi;
5966         spin_unlock_irq(&phba->hbalock);
5967
5968         /*
5969          * The port has a limited number of rpis. The increment here
5970          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5971          * and to allow the full max_rpi range per port.
5972          */
5973         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5974                 rpi_count = rpi_limit - curr_rpi_range;
5975         else
5976                 rpi_count = LPFC_RPI_HDR_COUNT;
5977
5978         if (!rpi_count)
5979                 return NULL;
5980         /*
5981          * First allocate the protocol header region for the port.  The
5982          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5983          */
5984         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5985         if (!dmabuf)
5986                 return NULL;
5987
5988         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5989                                            LPFC_HDR_TEMPLATE_SIZE,
5990                                            &dmabuf->phys, GFP_KERNEL);
5991         if (!dmabuf->virt) {
5992                 rpi_hdr = NULL;
5993                 goto err_free_dmabuf;
5994         }
5995
5996         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5997                 rpi_hdr = NULL;
5998                 goto err_free_coherent;
5999         }
6000
6001         /* Save the rpi header data for cleanup later. */
6002         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6003         if (!rpi_hdr)
6004                 goto err_free_coherent;
6005
6006         rpi_hdr->dmabuf = dmabuf;
6007         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6008         rpi_hdr->page_count = 1;
6009         spin_lock_irq(&phba->hbalock);
6010
6011         /* The rpi_hdr stores the logical index only. */
6012         rpi_hdr->start_rpi = curr_rpi_range;
6013         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6014
6015         /*
6016          * The next_rpi stores the next logical module-64 rpi value used
6017          * to post physical rpis in subsequent rpi postings.
6018          */
6019         phba->sli4_hba.next_rpi += rpi_count;
6020         spin_unlock_irq(&phba->hbalock);
6021         return rpi_hdr;
6022
6023  err_free_coherent:
6024         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6025                           dmabuf->virt, dmabuf->phys);
6026  err_free_dmabuf:
6027         kfree(dmabuf);
6028         return NULL;
6029 }
6030
6031 /**
6032  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6033  * @phba: pointer to lpfc hba data structure.
6034  *
6035  * This routine is invoked to remove all memory resources allocated
6036  * to support rpis for SLI4 ports not supporting extents. This routine
6037  * presumes the caller has released all rpis consumed by fabric or port
6038  * logins and is prepared to have the header pages removed.
6039  **/
6040 void
6041 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6042 {
6043         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6044
6045         if (!phba->sli4_hba.rpi_hdrs_in_use)
6046                 goto exit;
6047
6048         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6049                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6050                 list_del(&rpi_hdr->list);
6051                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6052                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6053                 kfree(rpi_hdr->dmabuf);
6054                 kfree(rpi_hdr);
6055         }
6056  exit:
6057         /* There are no rpis available to the port now. */
6058         phba->sli4_hba.next_rpi = 0;
6059 }
6060
6061 /**
6062  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6063  * @pdev: pointer to pci device data structure.
6064  *
6065  * This routine is invoked to allocate the driver hba data structure for an
6066  * HBA device. If the allocation is successful, the phba reference to the
6067  * PCI device data structure is set.
6068  *
6069  * Return codes
6070  *      pointer to @phba - successful
6071  *      NULL - error
6072  **/
6073 static struct lpfc_hba *
6074 lpfc_hba_alloc(struct pci_dev *pdev)
6075 {
6076         struct lpfc_hba *phba;
6077
6078         /* Allocate memory for HBA structure */
6079         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6080         if (!phba) {
6081                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6082                 return NULL;
6083         }
6084
6085         /* Set reference to PCI device in HBA structure */
6086         phba->pcidev = pdev;
6087
6088         /* Assign an unused board number */
6089         phba->brd_no = lpfc_get_instance();
6090         if (phba->brd_no < 0) {
6091                 kfree(phba);
6092                 return NULL;
6093         }
6094
6095         spin_lock_init(&phba->ct_ev_lock);
6096         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6097
6098         return phba;
6099 }
6100
6101 /**
6102  * lpfc_hba_free - Free driver hba data structure with a device.
6103  * @phba: pointer to lpfc hba data structure.
6104  *
6105  * This routine is invoked to free the driver hba data structure with an
6106  * HBA device.
6107  **/
6108 static void
6109 lpfc_hba_free(struct lpfc_hba *phba)
6110 {
6111         /* Release the driver assigned board number */
6112         idr_remove(&lpfc_hba_index, phba->brd_no);
6113
6114         /* Free memory allocated with sli rings */
6115         kfree(phba->sli.ring);
6116         phba->sli.ring = NULL;
6117
6118         kfree(phba);
6119         return;
6120 }
6121
6122 /**
6123  * lpfc_create_shost - Create hba physical port with associated scsi host.
6124  * @phba: pointer to lpfc hba data structure.
6125  *
6126  * This routine is invoked to create HBA physical port and associate a SCSI
6127  * host with it.
6128  *
6129  * Return codes
6130  *      0 - successful
6131  *      other values - error
6132  **/
6133 static int
6134 lpfc_create_shost(struct lpfc_hba *phba)
6135 {
6136         struct lpfc_vport *vport;
6137         struct Scsi_Host  *shost;
6138
6139         /* Initialize HBA FC structure */
6140         phba->fc_edtov = FF_DEF_EDTOV;
6141         phba->fc_ratov = FF_DEF_RATOV;
6142         phba->fc_altov = FF_DEF_ALTOV;
6143         phba->fc_arbtov = FF_DEF_ARBTOV;
6144
6145         atomic_set(&phba->sdev_cnt, 0);
6146         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6147         if (!vport)
6148                 return -ENODEV;
6149
6150         shost = lpfc_shost_from_vport(vport);
6151         phba->pport = vport;
6152         lpfc_debugfs_initialize(vport);
6153         /* Put reference to SCSI host to driver's device private data */
6154         pci_set_drvdata(phba->pcidev, shost);
6155
6156         /*
6157          * At this point we are fully registered with PSA. In addition,
6158          * any initial discovery should be completed.
6159          */
6160         vport->load_flag |= FC_ALLOW_FDMI;
6161         if (phba->cfg_fdmi_on > LPFC_FDMI_NO_SUPPORT) {
6162
6163                 /* Setup appropriate attribute masks */
6164                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6165                 if (phba->cfg_fdmi_on == LPFC_FDMI_SMART_SAN)
6166                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6167                 else
6168                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6169         }
6170         return 0;
6171 }
6172
6173 /**
6174  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6175  * @phba: pointer to lpfc hba data structure.
6176  *
6177  * This routine is invoked to destroy HBA physical port and the associated
6178  * SCSI host.
6179  **/
6180 static void
6181 lpfc_destroy_shost(struct lpfc_hba *phba)
6182 {
6183         struct lpfc_vport *vport = phba->pport;
6184
6185         /* Destroy physical port that associated with the SCSI host */
6186         destroy_port(vport);
6187
6188         return;
6189 }
6190
6191 /**
6192  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6193  * @phba: pointer to lpfc hba data structure.
6194  * @shost: the shost to be used to detect Block guard settings.
6195  *
6196  * This routine sets up the local Block guard protocol settings for @shost.
6197  * This routine also allocates memory for debugging bg buffers.
6198  **/
6199 static void
6200 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6201 {
6202         uint32_t old_mask;
6203         uint32_t old_guard;
6204
6205         int pagecnt = 10;
6206         if (lpfc_prot_mask && lpfc_prot_guard) {
6207                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6208                                 "1478 Registering BlockGuard with the "
6209                                 "SCSI layer\n");
6210
6211                 old_mask = lpfc_prot_mask;
6212                 old_guard = lpfc_prot_guard;
6213
6214                 /* Only allow supported values */
6215                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6216                         SHOST_DIX_TYPE0_PROTECTION |
6217                         SHOST_DIX_TYPE1_PROTECTION);
6218                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6219
6220                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6221                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6222                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6223
6224                 if (lpfc_prot_mask && lpfc_prot_guard) {
6225                         if ((old_mask != lpfc_prot_mask) ||
6226                                 (old_guard != lpfc_prot_guard))
6227                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6228                                         "1475 Registering BlockGuard with the "
6229                                         "SCSI layer: mask %d  guard %d\n",
6230                                         lpfc_prot_mask, lpfc_prot_guard);
6231
6232                         scsi_host_set_prot(shost, lpfc_prot_mask);
6233                         scsi_host_set_guard(shost, lpfc_prot_guard);
6234                 } else
6235                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6236                                 "1479 Not Registering BlockGuard with the SCSI "
6237                                 "layer, Bad protection parameters: %d %d\n",
6238                                 old_mask, old_guard);
6239         }
6240
6241         if (!_dump_buf_data) {
6242                 while (pagecnt) {
6243                         spin_lock_init(&_dump_buf_lock);
6244                         _dump_buf_data =
6245                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6246                         if (_dump_buf_data) {
6247                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6248                                         "9043 BLKGRD: allocated %d pages for "
6249                                        "_dump_buf_data at 0x%p\n",
6250                                        (1 << pagecnt), _dump_buf_data);
6251                                 _dump_buf_data_order = pagecnt;
6252                                 memset(_dump_buf_data, 0,
6253                                        ((1 << PAGE_SHIFT) << pagecnt));
6254                                 break;
6255                         } else
6256                                 --pagecnt;
6257                 }
6258                 if (!_dump_buf_data_order)
6259                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6260                                 "9044 BLKGRD: ERROR unable to allocate "
6261                                "memory for hexdump\n");
6262         } else
6263                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6264                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6265                        "\n", _dump_buf_data);
6266         if (!_dump_buf_dif) {
6267                 while (pagecnt) {
6268                         _dump_buf_dif =
6269                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6270                         if (_dump_buf_dif) {
6271                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6272                                         "9046 BLKGRD: allocated %d pages for "
6273                                        "_dump_buf_dif at 0x%p\n",
6274                                        (1 << pagecnt), _dump_buf_dif);
6275                                 _dump_buf_dif_order = pagecnt;
6276                                 memset(_dump_buf_dif, 0,
6277                                        ((1 << PAGE_SHIFT) << pagecnt));
6278                                 break;
6279                         } else
6280                                 --pagecnt;
6281                 }
6282                 if (!_dump_buf_dif_order)
6283                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6284                         "9047 BLKGRD: ERROR unable to allocate "
6285                                "memory for hexdump\n");
6286         } else
6287                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6288                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6289                        _dump_buf_dif);
6290 }
6291
6292 /**
6293  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6294  * @phba: pointer to lpfc hba data structure.
6295  *
6296  * This routine is invoked to perform all the necessary post initialization
6297  * setup for the device.
6298  **/
6299 static void
6300 lpfc_post_init_setup(struct lpfc_hba *phba)
6301 {
6302         struct Scsi_Host  *shost;
6303         struct lpfc_adapter_event_header adapter_event;
6304
6305         /* Get the default values for Model Name and Description */
6306         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6307
6308         /*
6309          * hba setup may have changed the hba_queue_depth so we need to
6310          * adjust the value of can_queue.
6311          */
6312         shost = pci_get_drvdata(phba->pcidev);
6313         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6314         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6315                 lpfc_setup_bg(phba, shost);
6316
6317         lpfc_host_attrib_init(shost);
6318
6319         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6320                 spin_lock_irq(shost->host_lock);
6321                 lpfc_poll_start_timer(phba);
6322                 spin_unlock_irq(shost->host_lock);
6323         }
6324
6325         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6326                         "0428 Perform SCSI scan\n");
6327         /* Send board arrival event to upper layer */
6328         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6329         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6330         fc_host_post_vendor_event(shost, fc_get_event_number(),
6331                                   sizeof(adapter_event),
6332                                   (char *) &adapter_event,
6333                                   LPFC_NL_VENDOR_ID);
6334         return;
6335 }
6336
6337 /**
6338  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6339  * @phba: pointer to lpfc hba data structure.
6340  *
6341  * This routine is invoked to set up the PCI device memory space for device
6342  * with SLI-3 interface spec.
6343  *
6344  * Return codes
6345  *      0 - successful
6346  *      other values - error
6347  **/
6348 static int
6349 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6350 {
6351         struct pci_dev *pdev;
6352         unsigned long bar0map_len, bar2map_len;
6353         int i, hbq_count;
6354         void *ptr;
6355         int error = -ENODEV;
6356
6357         /* Obtain PCI device reference */
6358         if (!phba->pcidev)
6359                 return error;
6360         else
6361                 pdev = phba->pcidev;
6362
6363         /* Set the device DMA mask size */
6364         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6365          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6366                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6367                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6368                         return error;
6369                 }
6370         }
6371
6372         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6373          * required by each mapping.
6374          */
6375         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6376         bar0map_len = pci_resource_len(pdev, 0);
6377
6378         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6379         bar2map_len = pci_resource_len(pdev, 2);
6380
6381         /* Map HBA SLIM to a kernel virtual address. */
6382         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6383         if (!phba->slim_memmap_p) {
6384                 dev_printk(KERN_ERR, &pdev->dev,
6385                            "ioremap failed for SLIM memory.\n");
6386                 goto out;
6387         }
6388
6389         /* Map HBA Control Registers to a kernel virtual address. */
6390         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6391         if (!phba->ctrl_regs_memmap_p) {
6392                 dev_printk(KERN_ERR, &pdev->dev,
6393                            "ioremap failed for HBA control registers.\n");
6394                 goto out_iounmap_slim;
6395         }
6396
6397         /* Allocate memory for SLI-2 structures */
6398         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6399                                                 &phba->slim2p.phys, GFP_KERNEL);
6400         if (!phba->slim2p.virt)
6401                 goto out_iounmap;
6402
6403         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6404         phba->mbox_ext = (phba->slim2p.virt +
6405                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6406         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6407         phba->IOCBs = (phba->slim2p.virt +
6408                        offsetof(struct lpfc_sli2_slim, IOCBs));
6409
6410         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6411                                                  lpfc_sli_hbq_size(),
6412                                                  &phba->hbqslimp.phys,
6413                                                  GFP_KERNEL);
6414         if (!phba->hbqslimp.virt)
6415                 goto out_free_slim;
6416
6417         hbq_count = lpfc_sli_hbq_count();
6418         ptr = phba->hbqslimp.virt;
6419         for (i = 0; i < hbq_count; ++i) {
6420                 phba->hbqs[i].hbq_virt = ptr;
6421                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6422                 ptr += (lpfc_hbq_defs[i]->entry_count *
6423                         sizeof(struct lpfc_hbq_entry));
6424         }
6425         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6426         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6427
6428         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6429
6430         INIT_LIST_HEAD(&phba->rb_pend_list);
6431
6432         phba->MBslimaddr = phba->slim_memmap_p;
6433         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6434         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6435         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6436         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6437
6438         return 0;
6439
6440 out_free_slim:
6441         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6442                           phba->slim2p.virt, phba->slim2p.phys);
6443 out_iounmap:
6444         iounmap(phba->ctrl_regs_memmap_p);
6445 out_iounmap_slim:
6446         iounmap(phba->slim_memmap_p);
6447 out:
6448         return error;
6449 }
6450
6451 /**
6452  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6453  * @phba: pointer to lpfc hba data structure.
6454  *
6455  * This routine is invoked to unset the PCI device memory space for device
6456  * with SLI-3 interface spec.
6457  **/
6458 static void
6459 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6460 {
6461         struct pci_dev *pdev;
6462
6463         /* Obtain PCI device reference */
6464         if (!phba->pcidev)
6465                 return;
6466         else
6467                 pdev = phba->pcidev;
6468
6469         /* Free coherent DMA memory allocated */
6470         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6471                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6472         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6473                           phba->slim2p.virt, phba->slim2p.phys);
6474
6475         /* I/O memory unmap */
6476         iounmap(phba->ctrl_regs_memmap_p);
6477         iounmap(phba->slim_memmap_p);
6478
6479         return;
6480 }
6481
6482 /**
6483  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6484  * @phba: pointer to lpfc hba data structure.
6485  *
6486  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6487  * done and check status.
6488  *
6489  * Return 0 if successful, otherwise -ENODEV.
6490  **/
6491 int
6492 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6493 {
6494         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6495         struct lpfc_register reg_data;
6496         int i, port_error = 0;
6497         uint32_t if_type;
6498
6499         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6500         memset(&reg_data, 0, sizeof(reg_data));
6501         if (!phba->sli4_hba.PSMPHRregaddr)
6502                 return -ENODEV;
6503
6504         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6505         for (i = 0; i < 3000; i++) {
6506                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6507                         &portsmphr_reg.word0) ||
6508                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6509                         /* Port has a fatal POST error, break out */
6510                         port_error = -ENODEV;
6511                         break;
6512                 }
6513                 if (LPFC_POST_STAGE_PORT_READY ==
6514                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6515                         break;
6516                 msleep(10);
6517         }
6518
6519         /*
6520          * If there was a port error during POST, then don't proceed with
6521          * other register reads as the data may not be valid.  Just exit.
6522          */
6523         if (port_error) {
6524                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6525                         "1408 Port Failed POST - portsmphr=0x%x, "
6526                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6527                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6528                         portsmphr_reg.word0,
6529                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6530                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6531                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6532                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6533                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6534                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6535                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6536                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6537         } else {
6538                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6539                                 "2534 Device Info: SLIFamily=0x%x, "
6540                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6541                                 "SLIHint_2=0x%x, FT=0x%x\n",
6542                                 bf_get(lpfc_sli_intf_sli_family,
6543                                        &phba->sli4_hba.sli_intf),
6544                                 bf_get(lpfc_sli_intf_slirev,
6545                                        &phba->sli4_hba.sli_intf),
6546                                 bf_get(lpfc_sli_intf_if_type,
6547                                        &phba->sli4_hba.sli_intf),
6548                                 bf_get(lpfc_sli_intf_sli_hint1,
6549                                        &phba->sli4_hba.sli_intf),
6550                                 bf_get(lpfc_sli_intf_sli_hint2,
6551                                        &phba->sli4_hba.sli_intf),
6552                                 bf_get(lpfc_sli_intf_func_type,
6553                                        &phba->sli4_hba.sli_intf));
6554                 /*
6555                  * Check for other Port errors during the initialization
6556                  * process.  Fail the load if the port did not come up
6557                  * correctly.
6558                  */
6559                 if_type = bf_get(lpfc_sli_intf_if_type,
6560                                  &phba->sli4_hba.sli_intf);
6561                 switch (if_type) {
6562                 case LPFC_SLI_INTF_IF_TYPE_0:
6563                         phba->sli4_hba.ue_mask_lo =
6564                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6565                         phba->sli4_hba.ue_mask_hi =
6566                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6567                         uerrlo_reg.word0 =
6568                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6569                         uerrhi_reg.word0 =
6570                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6571                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6572                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6573                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6574                                                 "1422 Unrecoverable Error "
6575                                                 "Detected during POST "
6576                                                 "uerr_lo_reg=0x%x, "
6577                                                 "uerr_hi_reg=0x%x, "
6578                                                 "ue_mask_lo_reg=0x%x, "
6579                                                 "ue_mask_hi_reg=0x%x\n",
6580                                                 uerrlo_reg.word0,
6581                                                 uerrhi_reg.word0,
6582                                                 phba->sli4_hba.ue_mask_lo,
6583                                                 phba->sli4_hba.ue_mask_hi);
6584                                 port_error = -ENODEV;
6585                         }
6586                         break;
6587                 case LPFC_SLI_INTF_IF_TYPE_2:
6588                         /* Final checks.  The port status should be clean. */
6589                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6590                                 &reg_data.word0) ||
6591                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6592                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6593                                 phba->work_status[0] =
6594                                         readl(phba->sli4_hba.u.if_type2.
6595                                               ERR1regaddr);
6596                                 phba->work_status[1] =
6597                                         readl(phba->sli4_hba.u.if_type2.
6598                                               ERR2regaddr);
6599                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6600                                         "2888 Unrecoverable port error "
6601                                         "following POST: port status reg "
6602                                         "0x%x, port_smphr reg 0x%x, "
6603                                         "error 1=0x%x, error 2=0x%x\n",
6604                                         reg_data.word0,
6605                                         portsmphr_reg.word0,
6606                                         phba->work_status[0],
6607                                         phba->work_status[1]);
6608                                 port_error = -ENODEV;
6609                         }
6610                         break;
6611                 case LPFC_SLI_INTF_IF_TYPE_1:
6612                 default:
6613                         break;
6614                 }
6615         }
6616         return port_error;
6617 }
6618
6619 /**
6620  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6621  * @phba: pointer to lpfc hba data structure.
6622  * @if_type:  The SLI4 interface type getting configured.
6623  *
6624  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6625  * memory map.
6626  **/
6627 static void
6628 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6629 {
6630         switch (if_type) {
6631         case LPFC_SLI_INTF_IF_TYPE_0:
6632                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6633                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6634                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6635                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6636                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6637                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6638                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6639                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6640                 phba->sli4_hba.SLIINTFregaddr =
6641                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6642                 break;
6643         case LPFC_SLI_INTF_IF_TYPE_2:
6644                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6645                         phba->sli4_hba.conf_regs_memmap_p +
6646                                                 LPFC_CTL_PORT_ER1_OFFSET;
6647                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6648                         phba->sli4_hba.conf_regs_memmap_p +
6649                                                 LPFC_CTL_PORT_ER2_OFFSET;
6650                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6651                         phba->sli4_hba.conf_regs_memmap_p +
6652                                                 LPFC_CTL_PORT_CTL_OFFSET;
6653                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6654                         phba->sli4_hba.conf_regs_memmap_p +
6655                                                 LPFC_CTL_PORT_STA_OFFSET;
6656                 phba->sli4_hba.SLIINTFregaddr =
6657                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6658                 phba->sli4_hba.PSMPHRregaddr =
6659                         phba->sli4_hba.conf_regs_memmap_p +
6660                                                 LPFC_CTL_PORT_SEM_OFFSET;
6661                 phba->sli4_hba.RQDBregaddr =
6662                         phba->sli4_hba.conf_regs_memmap_p +
6663                                                 LPFC_ULP0_RQ_DOORBELL;
6664                 phba->sli4_hba.WQDBregaddr =
6665                         phba->sli4_hba.conf_regs_memmap_p +
6666                                                 LPFC_ULP0_WQ_DOORBELL;
6667                 phba->sli4_hba.EQCQDBregaddr =
6668                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6669                 phba->sli4_hba.MQDBregaddr =
6670                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6671                 phba->sli4_hba.BMBXregaddr =
6672                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6673                 break;
6674         case LPFC_SLI_INTF_IF_TYPE_1:
6675         default:
6676                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6677                            "FATAL - unsupported SLI4 interface type - %d\n",
6678                            if_type);
6679                 break;
6680         }
6681 }
6682
6683 /**
6684  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6685  * @phba: pointer to lpfc hba data structure.
6686  *
6687  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6688  * memory map.
6689  **/
6690 static void
6691 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6692 {
6693         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6694                 LPFC_SLIPORT_IF0_SMPHR;
6695         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6696                 LPFC_HST_ISR0;
6697         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6698                 LPFC_HST_IMR0;
6699         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6700                 LPFC_HST_ISCR0;
6701 }
6702
6703 /**
6704  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6705  * @phba: pointer to lpfc hba data structure.
6706  * @vf: virtual function number
6707  *
6708  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6709  * based on the given viftual function number, @vf.
6710  *
6711  * Return 0 if successful, otherwise -ENODEV.
6712  **/
6713 static int
6714 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6715 {
6716         if (vf > LPFC_VIR_FUNC_MAX)
6717                 return -ENODEV;
6718
6719         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6720                                 vf * LPFC_VFR_PAGE_SIZE +
6721                                         LPFC_ULP0_RQ_DOORBELL);
6722         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6723                                 vf * LPFC_VFR_PAGE_SIZE +
6724                                         LPFC_ULP0_WQ_DOORBELL);
6725         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6726                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6727         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6728                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6729         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6730                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6731         return 0;
6732 }
6733
6734 /**
6735  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6736  * @phba: pointer to lpfc hba data structure.
6737  *
6738  * This routine is invoked to create the bootstrap mailbox
6739  * region consistent with the SLI-4 interface spec.  This
6740  * routine allocates all memory necessary to communicate
6741  * mailbox commands to the port and sets up all alignment
6742  * needs.  No locks are expected to be held when calling
6743  * this routine.
6744  *
6745  * Return codes
6746  *      0 - successful
6747  *      -ENOMEM - could not allocated memory.
6748  **/
6749 static int
6750 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6751 {
6752         uint32_t bmbx_size;
6753         struct lpfc_dmabuf *dmabuf;
6754         struct dma_address *dma_address;
6755         uint32_t pa_addr;
6756         uint64_t phys_addr;
6757
6758         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6759         if (!dmabuf)
6760                 return -ENOMEM;
6761
6762         /*
6763          * The bootstrap mailbox region is comprised of 2 parts
6764          * plus an alignment restriction of 16 bytes.
6765          */
6766         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6767         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6768                                            &dmabuf->phys, GFP_KERNEL);
6769         if (!dmabuf->virt) {
6770                 kfree(dmabuf);
6771                 return -ENOMEM;
6772         }
6773
6774         /*
6775          * Initialize the bootstrap mailbox pointers now so that the register
6776          * operations are simple later.  The mailbox dma address is required
6777          * to be 16-byte aligned.  Also align the virtual memory as each
6778          * maibox is copied into the bmbx mailbox region before issuing the
6779          * command to the port.
6780          */
6781         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6782         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6783
6784         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6785                                               LPFC_ALIGN_16_BYTE);
6786         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6787                                               LPFC_ALIGN_16_BYTE);
6788
6789         /*
6790          * Set the high and low physical addresses now.  The SLI4 alignment
6791          * requirement is 16 bytes and the mailbox is posted to the port
6792          * as two 30-bit addresses.  The other data is a bit marking whether
6793          * the 30-bit address is the high or low address.
6794          * Upcast bmbx aphys to 64bits so shift instruction compiles
6795          * clean on 32 bit machines.
6796          */
6797         dma_address = &phba->sli4_hba.bmbx.dma_address;
6798         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6799         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6800         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6801                                            LPFC_BMBX_BIT1_ADDR_HI);
6802
6803         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6804         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6805                                            LPFC_BMBX_BIT1_ADDR_LO);
6806         return 0;
6807 }
6808
6809 /**
6810  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6811  * @phba: pointer to lpfc hba data structure.
6812  *
6813  * This routine is invoked to teardown the bootstrap mailbox
6814  * region and release all host resources. This routine requires
6815  * the caller to ensure all mailbox commands recovered, no
6816  * additional mailbox comands are sent, and interrupts are disabled
6817  * before calling this routine.
6818  *
6819  **/
6820 static void
6821 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6822 {
6823         dma_free_coherent(&phba->pcidev->dev,
6824                           phba->sli4_hba.bmbx.bmbx_size,
6825                           phba->sli4_hba.bmbx.dmabuf->virt,
6826                           phba->sli4_hba.bmbx.dmabuf->phys);
6827
6828         kfree(phba->sli4_hba.bmbx.dmabuf);
6829         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6830 }
6831
6832 /**
6833  * lpfc_sli4_read_config - Get the config parameters.
6834  * @phba: pointer to lpfc hba data structure.
6835  *
6836  * This routine is invoked to read the configuration parameters from the HBA.
6837  * The configuration parameters are used to set the base and maximum values
6838  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6839  * allocation for the port.
6840  *
6841  * Return codes
6842  *      0 - successful
6843  *      -ENOMEM - No available memory
6844  *      -EIO - The mailbox failed to complete successfully.
6845  **/
6846 int
6847 lpfc_sli4_read_config(struct lpfc_hba *phba)
6848 {
6849         LPFC_MBOXQ_t *pmb;
6850         struct lpfc_mbx_read_config *rd_config;
6851         union  lpfc_sli4_cfg_shdr *shdr;
6852         uint32_t shdr_status, shdr_add_status;
6853         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6854         struct lpfc_rsrc_desc_fcfcoe *desc;
6855         char *pdesc_0;
6856         int length, i, rc = 0, rc2;
6857
6858         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6859         if (!pmb) {
6860                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6861                                 "2011 Unable to allocate memory for issuing "
6862                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6863                 return -ENOMEM;
6864         }
6865
6866         lpfc_read_config(phba, pmb);
6867
6868         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6869         if (rc != MBX_SUCCESS) {
6870                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6871                         "2012 Mailbox failed , mbxCmd x%x "
6872                         "READ_CONFIG, mbxStatus x%x\n",
6873                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6874                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6875                 rc = -EIO;
6876         } else {
6877                 rd_config = &pmb->u.mqe.un.rd_config;
6878                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6879                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6880                         phba->sli4_hba.lnk_info.lnk_tp =
6881                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6882                         phba->sli4_hba.lnk_info.lnk_no =
6883                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6884                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6885                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6886                                         phba->sli4_hba.lnk_info.lnk_tp,
6887                                         phba->sli4_hba.lnk_info.lnk_no);
6888                 } else
6889                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6890                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6891                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6892                 phba->sli4_hba.extents_in_use =
6893                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6894                 phba->sli4_hba.max_cfg_param.max_xri =
6895                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6896                 phba->sli4_hba.max_cfg_param.xri_base =
6897                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6898                 phba->sli4_hba.max_cfg_param.max_vpi =
6899                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6900                 phba->sli4_hba.max_cfg_param.vpi_base =
6901                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6902                 phba->sli4_hba.max_cfg_param.max_rpi =
6903                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6904                 phba->sli4_hba.max_cfg_param.rpi_base =
6905                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6906                 phba->sli4_hba.max_cfg_param.max_vfi =
6907                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6908                 phba->sli4_hba.max_cfg_param.vfi_base =
6909                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6910                 phba->sli4_hba.max_cfg_param.max_fcfi =
6911                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6912                 phba->sli4_hba.max_cfg_param.max_eq =
6913                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6914                 phba->sli4_hba.max_cfg_param.max_rq =
6915                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6916                 phba->sli4_hba.max_cfg_param.max_wq =
6917                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6918                 phba->sli4_hba.max_cfg_param.max_cq =
6919                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6920                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6921                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6922                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6923                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6924                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6925                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6926                 phba->max_vports = phba->max_vpi;
6927                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6928                                 "2003 cfg params Extents? %d "
6929                                 "XRI(B:%d M:%d), "
6930                                 "VPI(B:%d M:%d) "
6931                                 "VFI(B:%d M:%d) "
6932                                 "RPI(B:%d M:%d) "
6933                                 "FCFI(Count:%d)\n",
6934                                 phba->sli4_hba.extents_in_use,
6935                                 phba->sli4_hba.max_cfg_param.xri_base,
6936                                 phba->sli4_hba.max_cfg_param.max_xri,
6937                                 phba->sli4_hba.max_cfg_param.vpi_base,
6938                                 phba->sli4_hba.max_cfg_param.max_vpi,
6939                                 phba->sli4_hba.max_cfg_param.vfi_base,
6940                                 phba->sli4_hba.max_cfg_param.max_vfi,
6941                                 phba->sli4_hba.max_cfg_param.rpi_base,
6942                                 phba->sli4_hba.max_cfg_param.max_rpi,
6943                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6944         }
6945
6946         if (rc)
6947                 goto read_cfg_out;
6948
6949         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6950         length = phba->sli4_hba.max_cfg_param.max_xri -
6951                         lpfc_sli4_get_els_iocb_cnt(phba);
6952         if (phba->cfg_hba_queue_depth > length) {
6953                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6954                                 "3361 HBA queue depth changed from %d to %d\n",
6955                                 phba->cfg_hba_queue_depth, length);
6956                 phba->cfg_hba_queue_depth = length;
6957         }
6958
6959         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6960             LPFC_SLI_INTF_IF_TYPE_2)
6961                 goto read_cfg_out;
6962
6963         /* get the pf# and vf# for SLI4 if_type 2 port */
6964         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6965                   sizeof(struct lpfc_sli4_cfg_mhdr));
6966         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6967                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6968                          length, LPFC_SLI4_MBX_EMBED);
6969
6970         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6971         shdr = (union lpfc_sli4_cfg_shdr *)
6972                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6973         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6974         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6975         if (rc2 || shdr_status || shdr_add_status) {
6976                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6977                                 "3026 Mailbox failed , mbxCmd x%x "
6978                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6979                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6980                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6981                 goto read_cfg_out;
6982         }
6983
6984         /* search for fc_fcoe resrouce descriptor */
6985         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6986
6987         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6988         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6989         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6990         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6991                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6992         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6993                 goto read_cfg_out;
6994
6995         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6996                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6997                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6998                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6999                         phba->sli4_hba.iov.pf_number =
7000                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7001                         phba->sli4_hba.iov.vf_number =
7002                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7003                         break;
7004                 }
7005         }
7006
7007         if (i < LPFC_RSRC_DESC_MAX_NUM)
7008                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7009                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7010                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7011                                 phba->sli4_hba.iov.vf_number);
7012         else
7013                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7014                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7015                                 "Resrouce Descriptor:x%x\n",
7016                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7017
7018 read_cfg_out:
7019         mempool_free(pmb, phba->mbox_mem_pool);
7020         return rc;
7021 }
7022
7023 /**
7024  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7025  * @phba: pointer to lpfc hba data structure.
7026  *
7027  * This routine is invoked to setup the port-side endian order when
7028  * the port if_type is 0.  This routine has no function for other
7029  * if_types.
7030  *
7031  * Return codes
7032  *      0 - successful
7033  *      -ENOMEM - No available memory
7034  *      -EIO - The mailbox failed to complete successfully.
7035  **/
7036 static int
7037 lpfc_setup_endian_order(struct lpfc_hba *phba)
7038 {
7039         LPFC_MBOXQ_t *mboxq;
7040         uint32_t if_type, rc = 0;
7041         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7042                                       HOST_ENDIAN_HIGH_WORD1};
7043
7044         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7045         switch (if_type) {
7046         case LPFC_SLI_INTF_IF_TYPE_0:
7047                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7048                                                        GFP_KERNEL);
7049                 if (!mboxq) {
7050                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7051                                         "0492 Unable to allocate memory for "
7052                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7053                                         "command\n");
7054                         return -ENOMEM;
7055                 }
7056
7057                 /*
7058                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7059                  * two words to contain special data values and no other data.
7060                  */
7061                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7062                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7063                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7064                 if (rc != MBX_SUCCESS) {
7065                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7066                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7067                                         "failed with status x%x\n",
7068                                         rc);
7069                         rc = -EIO;
7070                 }
7071                 mempool_free(mboxq, phba->mbox_mem_pool);
7072                 break;
7073         case LPFC_SLI_INTF_IF_TYPE_2:
7074         case LPFC_SLI_INTF_IF_TYPE_1:
7075         default:
7076                 break;
7077         }
7078         return rc;
7079 }
7080
7081 /**
7082  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7083  * @phba: pointer to lpfc hba data structure.
7084  *
7085  * This routine is invoked to check the user settable queue counts for EQs and
7086  * CQs. after this routine is called the counts will be set to valid values that
7087  * adhere to the constraints of the system's interrupt vectors and the port's
7088  * queue resources.
7089  *
7090  * Return codes
7091  *      0 - successful
7092  *      -ENOMEM - No available memory
7093  **/
7094 static int
7095 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7096 {
7097         int cfg_fcp_io_channel;
7098         uint32_t cpu;
7099         uint32_t i = 0;
7100         int fof_vectors = phba->cfg_fof ? 1 : 0;
7101
7102         /*
7103          * Sanity check for configured queue parameters against the run-time
7104          * device parameters
7105          */
7106
7107         /* Sanity check on HBA EQ parameters */
7108         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7109
7110         /* It doesn't make sense to have more io channels then online CPUs */
7111         for_each_present_cpu(cpu) {
7112                 if (cpu_online(cpu))
7113                         i++;
7114         }
7115         phba->sli4_hba.num_online_cpu = i;
7116         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7117         phba->sli4_hba.curr_disp_cpu = 0;
7118
7119         if (i < cfg_fcp_io_channel) {
7120                 lpfc_printf_log(phba,
7121                                 KERN_ERR, LOG_INIT,
7122                                 "3188 Reducing IO channels to match number of "
7123                                 "online CPUs: from %d to %d\n",
7124                                 cfg_fcp_io_channel, i);
7125                 cfg_fcp_io_channel = i;
7126         }
7127
7128         if (cfg_fcp_io_channel + fof_vectors >
7129             phba->sli4_hba.max_cfg_param.max_eq) {
7130                 if (phba->sli4_hba.max_cfg_param.max_eq <
7131                     LPFC_FCP_IO_CHAN_MIN) {
7132                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7133                                         "2574 Not enough EQs (%d) from the "
7134                                         "pci function for supporting FCP "
7135                                         "EQs (%d)\n",
7136                                         phba->sli4_hba.max_cfg_param.max_eq,
7137                                         phba->cfg_fcp_io_channel);
7138                         goto out_error;
7139                 }
7140                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7141                                 "2575 Reducing IO channels to match number of "
7142                                 "available EQs: from %d to %d\n",
7143                                 cfg_fcp_io_channel,
7144                                 phba->sli4_hba.max_cfg_param.max_eq);
7145                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7146                         fof_vectors;
7147         }
7148
7149         /* The actual number of FCP event queues adopted */
7150         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7151
7152         /* Get EQ depth from module parameter, fake the default for now */
7153         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7154         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7155
7156         /* Get CQ depth from module parameter, fake the default for now */
7157         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7158         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7159
7160         return 0;
7161 out_error:
7162         return -ENOMEM;
7163 }
7164
7165 /**
7166  * lpfc_sli4_queue_create - Create all the SLI4 queues
7167  * @phba: pointer to lpfc hba data structure.
7168  *
7169  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7170  * operation. For each SLI4 queue type, the parameters such as queue entry
7171  * count (queue depth) shall be taken from the module parameter. For now,
7172  * we just use some constant number as place holder.
7173  *
7174  * Return codes
7175  *      0 - successful
7176  *      -ENOMEM - No availble memory
7177  *      -EIO - The mailbox failed to complete successfully.
7178  **/
7179 int
7180 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7181 {
7182         struct lpfc_queue *qdesc;
7183         int idx;
7184
7185         /*
7186          * Create HBA Record arrays.
7187          */
7188         if (!phba->cfg_fcp_io_channel)
7189                 return -ERANGE;
7190
7191         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7192         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7193         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7194         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7195         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7196         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7197
7198         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
7199                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7200         if (!phba->sli4_hba.hba_eq) {
7201                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7202                         "2576 Failed allocate memory for "
7203                         "fast-path EQ record array\n");
7204                 goto out_error;
7205         }
7206
7207         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7208                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7209         if (!phba->sli4_hba.fcp_cq) {
7210                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7211                                 "2577 Failed allocate memory for fast-path "
7212                                 "CQ record array\n");
7213                 goto out_error;
7214         }
7215
7216         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7217                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7218         if (!phba->sli4_hba.fcp_wq) {
7219                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7220                                 "2578 Failed allocate memory for fast-path "
7221                                 "WQ record array\n");
7222                 goto out_error;
7223         }
7224
7225         /*
7226          * Since the first EQ can have multiple CQs associated with it,
7227          * this array is used to quickly see if we have a FCP fast-path
7228          * CQ match.
7229          */
7230         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7231                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
7232         if (!phba->sli4_hba.fcp_cq_map) {
7233                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7234                                 "2545 Failed allocate memory for fast-path "
7235                                 "CQ map\n");
7236                 goto out_error;
7237         }
7238
7239         /*
7240          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
7241          * how many EQs to create.
7242          */
7243         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7244
7245                 /* Create EQs */
7246                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7247                                               phba->sli4_hba.eq_ecount);
7248                 if (!qdesc) {
7249                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7250                                         "0497 Failed allocate EQ (%d)\n", idx);
7251                         goto out_error;
7252                 }
7253                 phba->sli4_hba.hba_eq[idx] = qdesc;
7254
7255                 /* Create Fast Path FCP CQs */
7256                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7257                                               phba->sli4_hba.cq_ecount);
7258                 if (!qdesc) {
7259                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7260                                         "0499 Failed allocate fast-path FCP "
7261                                         "CQ (%d)\n", idx);
7262                         goto out_error;
7263                 }
7264                 phba->sli4_hba.fcp_cq[idx] = qdesc;
7265
7266                 /* Create Fast Path FCP WQs */
7267                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7268                                               phba->sli4_hba.wq_ecount);
7269                 if (!qdesc) {
7270                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7271                                         "0503 Failed allocate fast-path FCP "
7272                                         "WQ (%d)\n", idx);
7273                         goto out_error;
7274                 }
7275                 phba->sli4_hba.fcp_wq[idx] = qdesc;
7276         }
7277
7278
7279         /*
7280          * Create Slow Path Completion Queues (CQs)
7281          */
7282
7283         /* Create slow-path Mailbox Command Complete Queue */
7284         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7285                                       phba->sli4_hba.cq_ecount);
7286         if (!qdesc) {
7287                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7288                                 "0500 Failed allocate slow-path mailbox CQ\n");
7289                 goto out_error;
7290         }
7291         phba->sli4_hba.mbx_cq = qdesc;
7292
7293         /* Create slow-path ELS Complete Queue */
7294         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7295                                       phba->sli4_hba.cq_ecount);
7296         if (!qdesc) {
7297                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7298                                 "0501 Failed allocate slow-path ELS CQ\n");
7299                 goto out_error;
7300         }
7301         phba->sli4_hba.els_cq = qdesc;
7302
7303
7304         /*
7305          * Create Slow Path Work Queues (WQs)
7306          */
7307
7308         /* Create Mailbox Command Queue */
7309
7310         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7311                                       phba->sli4_hba.mq_ecount);
7312         if (!qdesc) {
7313                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7314                                 "0505 Failed allocate slow-path MQ\n");
7315                 goto out_error;
7316         }
7317         phba->sli4_hba.mbx_wq = qdesc;
7318
7319         /*
7320          * Create ELS Work Queues
7321          */
7322
7323         /* Create slow-path ELS Work Queue */
7324         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7325                                       phba->sli4_hba.wq_ecount);
7326         if (!qdesc) {
7327                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7328                                 "0504 Failed allocate slow-path ELS WQ\n");
7329                 goto out_error;
7330         }
7331         phba->sli4_hba.els_wq = qdesc;
7332
7333         /*
7334          * Create Receive Queue (RQ)
7335          */
7336
7337         /* Create Receive Queue for header */
7338         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7339                                       phba->sli4_hba.rq_ecount);
7340         if (!qdesc) {
7341                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7342                                 "0506 Failed allocate receive HRQ\n");
7343                 goto out_error;
7344         }
7345         phba->sli4_hba.hdr_rq = qdesc;
7346
7347         /* Create Receive Queue for data */
7348         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7349                                       phba->sli4_hba.rq_ecount);
7350         if (!qdesc) {
7351                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7352                                 "0507 Failed allocate receive DRQ\n");
7353                 goto out_error;
7354         }
7355         phba->sli4_hba.dat_rq = qdesc;
7356
7357         /* Create the Queues needed for Flash Optimized Fabric operations */
7358         if (phba->cfg_fof)
7359                 lpfc_fof_queue_create(phba);
7360         return 0;
7361
7362 out_error:
7363         lpfc_sli4_queue_destroy(phba);
7364         return -ENOMEM;
7365 }
7366
7367 /**
7368  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7369  * @phba: pointer to lpfc hba data structure.
7370  *
7371  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7372  * operation.
7373  *
7374  * Return codes
7375  *      0 - successful
7376  *      -ENOMEM - No available memory
7377  *      -EIO - The mailbox failed to complete successfully.
7378  **/
7379 void
7380 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7381 {
7382         int idx;
7383
7384         if (phba->cfg_fof)
7385                 lpfc_fof_queue_destroy(phba);
7386
7387         if (phba->sli4_hba.hba_eq != NULL) {
7388                 /* Release HBA event queue */
7389                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7390                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7391                                 lpfc_sli4_queue_free(
7392                                         phba->sli4_hba.hba_eq[idx]);
7393                                 phba->sli4_hba.hba_eq[idx] = NULL;
7394                         }
7395                 }
7396                 kfree(phba->sli4_hba.hba_eq);
7397                 phba->sli4_hba.hba_eq = NULL;
7398         }
7399
7400         if (phba->sli4_hba.fcp_cq != NULL) {
7401                 /* Release FCP completion queue */
7402                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7403                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7404                                 lpfc_sli4_queue_free(
7405                                         phba->sli4_hba.fcp_cq[idx]);
7406                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7407                         }
7408                 }
7409                 kfree(phba->sli4_hba.fcp_cq);
7410                 phba->sli4_hba.fcp_cq = NULL;
7411         }
7412
7413         if (phba->sli4_hba.fcp_wq != NULL) {
7414                 /* Release FCP work queue */
7415                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7416                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7417                                 lpfc_sli4_queue_free(
7418                                         phba->sli4_hba.fcp_wq[idx]);
7419                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7420                         }
7421                 }
7422                 kfree(phba->sli4_hba.fcp_wq);
7423                 phba->sli4_hba.fcp_wq = NULL;
7424         }
7425
7426         /* Release FCP CQ mapping array */
7427         if (phba->sli4_hba.fcp_cq_map != NULL) {
7428                 kfree(phba->sli4_hba.fcp_cq_map);
7429                 phba->sli4_hba.fcp_cq_map = NULL;
7430         }
7431
7432         /* Release mailbox command work queue */
7433         if (phba->sli4_hba.mbx_wq != NULL) {
7434                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7435                 phba->sli4_hba.mbx_wq = NULL;
7436         }
7437
7438         /* Release ELS work queue */
7439         if (phba->sli4_hba.els_wq != NULL) {
7440                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7441                 phba->sli4_hba.els_wq = NULL;
7442         }
7443
7444         /* Release unsolicited receive queue */
7445         if (phba->sli4_hba.hdr_rq != NULL) {
7446                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7447                 phba->sli4_hba.hdr_rq = NULL;
7448         }
7449         if (phba->sli4_hba.dat_rq != NULL) {
7450                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7451                 phba->sli4_hba.dat_rq = NULL;
7452         }
7453
7454         /* Release ELS complete queue */
7455         if (phba->sli4_hba.els_cq != NULL) {
7456                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7457                 phba->sli4_hba.els_cq = NULL;
7458         }
7459
7460         /* Release mailbox command complete queue */
7461         if (phba->sli4_hba.mbx_cq != NULL) {
7462                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7463                 phba->sli4_hba.mbx_cq = NULL;
7464         }
7465
7466         return;
7467 }
7468
7469 /**
7470  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7471  * @phba: pointer to lpfc hba data structure.
7472  *
7473  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7474  * operation.
7475  *
7476  * Return codes
7477  *      0 - successful
7478  *      -ENOMEM - No available memory
7479  *      -EIO - The mailbox failed to complete successfully.
7480  **/
7481 int
7482 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7483 {
7484         struct lpfc_sli *psli = &phba->sli;
7485         struct lpfc_sli_ring *pring;
7486         int rc = -ENOMEM;
7487         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7488         int fcp_cq_index = 0;
7489         uint32_t shdr_status, shdr_add_status;
7490         union lpfc_sli4_cfg_shdr *shdr;
7491         LPFC_MBOXQ_t *mboxq;
7492         uint32_t length;
7493
7494         /* Check for dual-ULP support */
7495         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7496         if (!mboxq) {
7497                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7498                                 "3249 Unable to allocate memory for "
7499                                 "QUERY_FW_CFG mailbox command\n");
7500                 return -ENOMEM;
7501         }
7502         length = (sizeof(struct lpfc_mbx_query_fw_config) -
7503                   sizeof(struct lpfc_sli4_cfg_mhdr));
7504         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7505                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7506                          length, LPFC_SLI4_MBX_EMBED);
7507
7508         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7509
7510         shdr = (union lpfc_sli4_cfg_shdr *)
7511                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7512         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7513         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7514         if (shdr_status || shdr_add_status || rc) {
7515                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7516                                 "3250 QUERY_FW_CFG mailbox failed with status "
7517                                 "x%x add_status x%x, mbx status x%x\n",
7518                                 shdr_status, shdr_add_status, rc);
7519                 if (rc != MBX_TIMEOUT)
7520                         mempool_free(mboxq, phba->mbox_mem_pool);
7521                 rc = -ENXIO;
7522                 goto out_error;
7523         }
7524
7525         phba->sli4_hba.fw_func_mode =
7526                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7527         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7528         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7529         phba->sli4_hba.physical_port =
7530                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
7531         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7532                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7533                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7534                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7535
7536         if (rc != MBX_TIMEOUT)
7537                 mempool_free(mboxq, phba->mbox_mem_pool);
7538
7539         /*
7540          * Set up HBA Event Queues (EQs)
7541          */
7542
7543         /* Set up HBA event queue */
7544         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7545                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7546                                 "3147 Fast-path EQs not allocated\n");
7547                 rc = -ENOMEM;
7548                 goto out_error;
7549         }
7550         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7551                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7552                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7553                                         "0522 Fast-path EQ (%d) not "
7554                                         "allocated\n", fcp_eqidx);
7555                         rc = -ENOMEM;
7556                         goto out_destroy_hba_eq;
7557                 }
7558                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7559                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7560                 if (rc) {
7561                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7562                                         "0523 Failed setup of fast-path EQ "
7563                                         "(%d), rc = 0x%x\n", fcp_eqidx,
7564                                         (uint32_t)rc);
7565                         goto out_destroy_hba_eq;
7566                 }
7567                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7568                                 "2584 HBA EQ setup: "
7569                                 "queue[%d]-id=%d\n", fcp_eqidx,
7570                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7571         }
7572
7573         /* Set up fast-path FCP Response Complete Queue */
7574         if (!phba->sli4_hba.fcp_cq) {
7575                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7576                                 "3148 Fast-path FCP CQ array not "
7577                                 "allocated\n");
7578                 rc = -ENOMEM;
7579                 goto out_destroy_hba_eq;
7580         }
7581
7582         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7583                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7584                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7585                                         "0526 Fast-path FCP CQ (%d) not "
7586                                         "allocated\n", fcp_cqidx);
7587                         rc = -ENOMEM;
7588                         goto out_destroy_fcp_cq;
7589                 }
7590                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7591                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7592                 if (rc) {
7593                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7594                                         "0527 Failed setup of fast-path FCP "
7595                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7596                                         (uint32_t)rc);
7597                         goto out_destroy_fcp_cq;
7598                 }
7599
7600                 /* Setup fcp_cq_map for fast lookup */
7601                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7602                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7603
7604                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7605                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7606                                 "parent seq[%d]-id=%d\n",
7607                                 fcp_cqidx,
7608                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7609                                 fcp_cqidx,
7610                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7611         }
7612
7613         /* Set up fast-path FCP Work Queue */
7614         if (!phba->sli4_hba.fcp_wq) {
7615                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7616                                 "3149 Fast-path FCP WQ array not "
7617                                 "allocated\n");
7618                 rc = -ENOMEM;
7619                 goto out_destroy_fcp_cq;
7620         }
7621
7622         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7623                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7624                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7625                                         "0534 Fast-path FCP WQ (%d) not "
7626                                         "allocated\n", fcp_wqidx);
7627                         rc = -ENOMEM;
7628                         goto out_destroy_fcp_wq;
7629                 }
7630                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7631                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7632                                     LPFC_FCP);
7633                 if (rc) {
7634                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7635                                         "0535 Failed setup of fast-path FCP "
7636                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7637                                         (uint32_t)rc);
7638                         goto out_destroy_fcp_wq;
7639                 }
7640
7641                 /* Bind this WQ to the next FCP ring */
7642                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7643                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7644                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7645
7646                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7647                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7648                                 "parent cq[%d]-id=%d\n",
7649                                 fcp_wqidx,
7650                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7651                                 fcp_cq_index,
7652                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7653         }
7654         /*
7655          * Set up Complete Queues (CQs)
7656          */
7657
7658         /* Set up slow-path MBOX Complete Queue as the first CQ */
7659         if (!phba->sli4_hba.mbx_cq) {
7660                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7661                                 "0528 Mailbox CQ not allocated\n");
7662                 rc = -ENOMEM;
7663                 goto out_destroy_fcp_wq;
7664         }
7665         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7666                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7667         if (rc) {
7668                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7669                                 "0529 Failed setup of slow-path mailbox CQ: "
7670                                 "rc = 0x%x\n", (uint32_t)rc);
7671                 goto out_destroy_fcp_wq;
7672         }
7673         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7674                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7675                         phba->sli4_hba.mbx_cq->queue_id,
7676                         phba->sli4_hba.hba_eq[0]->queue_id);
7677
7678         /* Set up slow-path ELS Complete Queue */
7679         if (!phba->sli4_hba.els_cq) {
7680                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7681                                 "0530 ELS CQ not allocated\n");
7682                 rc = -ENOMEM;
7683                 goto out_destroy_mbx_cq;
7684         }
7685         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7686                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7687         if (rc) {
7688                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7689                                 "0531 Failed setup of slow-path ELS CQ: "
7690                                 "rc = 0x%x\n", (uint32_t)rc);
7691                 goto out_destroy_mbx_cq;
7692         }
7693         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7694                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7695                         phba->sli4_hba.els_cq->queue_id,
7696                         phba->sli4_hba.hba_eq[0]->queue_id);
7697
7698         /*
7699          * Set up all the Work Queues (WQs)
7700          */
7701
7702         /* Set up Mailbox Command Queue */
7703         if (!phba->sli4_hba.mbx_wq) {
7704                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7705                                 "0538 Slow-path MQ not allocated\n");
7706                 rc = -ENOMEM;
7707                 goto out_destroy_els_cq;
7708         }
7709         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7710                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7711         if (rc) {
7712                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7713                                 "0539 Failed setup of slow-path MQ: "
7714                                 "rc = 0x%x\n", rc);
7715                 goto out_destroy_els_cq;
7716         }
7717         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7718                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7719                         phba->sli4_hba.mbx_wq->queue_id,
7720                         phba->sli4_hba.mbx_cq->queue_id);
7721
7722         /* Set up slow-path ELS Work Queue */
7723         if (!phba->sli4_hba.els_wq) {
7724                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7725                                 "0536 Slow-path ELS WQ not allocated\n");
7726                 rc = -ENOMEM;
7727                 goto out_destroy_mbx_wq;
7728         }
7729         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7730                             phba->sli4_hba.els_cq, LPFC_ELS);
7731         if (rc) {
7732                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7733                                 "0537 Failed setup of slow-path ELS WQ: "
7734                                 "rc = 0x%x\n", (uint32_t)rc);
7735                 goto out_destroy_mbx_wq;
7736         }
7737
7738         /* Bind this WQ to the ELS ring */
7739         pring = &psli->ring[LPFC_ELS_RING];
7740         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7741         phba->sli4_hba.els_cq->pring = pring;
7742
7743         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7744                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7745                         phba->sli4_hba.els_wq->queue_id,
7746                         phba->sli4_hba.els_cq->queue_id);
7747
7748         /*
7749          * Create Receive Queue (RQ)
7750          */
7751         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7752                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7753                                 "0540 Receive Queue not allocated\n");
7754                 rc = -ENOMEM;
7755                 goto out_destroy_els_wq;
7756         }
7757
7758         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7759         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7760
7761         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7762                             phba->sli4_hba.els_cq, LPFC_USOL);
7763         if (rc) {
7764                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7765                                 "0541 Failed setup of Receive Queue: "
7766                                 "rc = 0x%x\n", (uint32_t)rc);
7767                 goto out_destroy_fcp_wq;
7768         }
7769
7770         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7771                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7772                         "parent cq-id=%d\n",
7773                         phba->sli4_hba.hdr_rq->queue_id,
7774                         phba->sli4_hba.dat_rq->queue_id,
7775                         phba->sli4_hba.els_cq->queue_id);
7776
7777         if (phba->cfg_fof) {
7778                 rc = lpfc_fof_queue_setup(phba);
7779                 if (rc) {
7780                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7781                                         "0549 Failed setup of FOF Queues: "
7782                                         "rc = 0x%x\n", rc);
7783                         goto out_destroy_els_rq;
7784                 }
7785         }
7786
7787         /*
7788          * Configure EQ delay multipier for interrupt coalescing using
7789          * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
7790          */
7791         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
7792                         fcp_eqidx += LPFC_MAX_EQ_DELAY)
7793                 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
7794         return 0;
7795
7796 out_destroy_els_rq:
7797         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7798 out_destroy_els_wq:
7799         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7800 out_destroy_mbx_wq:
7801         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7802 out_destroy_els_cq:
7803         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7804 out_destroy_mbx_cq:
7805         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7806 out_destroy_fcp_wq:
7807         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7808                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7809 out_destroy_fcp_cq:
7810         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7811                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7812 out_destroy_hba_eq:
7813         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7814                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7815 out_error:
7816         return rc;
7817 }
7818
7819 /**
7820  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7821  * @phba: pointer to lpfc hba data structure.
7822  *
7823  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7824  * operation.
7825  *
7826  * Return codes
7827  *      0 - successful
7828  *      -ENOMEM - No available memory
7829  *      -EIO - The mailbox failed to complete successfully.
7830  **/
7831 void
7832 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7833 {
7834         int fcp_qidx;
7835
7836         /* Unset the queues created for Flash Optimized Fabric operations */
7837         if (phba->cfg_fof)
7838                 lpfc_fof_queue_destroy(phba);
7839         /* Unset mailbox command work queue */
7840         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7841         /* Unset ELS work queue */
7842         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7843         /* Unset unsolicited receive queue */
7844         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7845         /* Unset FCP work queue */
7846         if (phba->sli4_hba.fcp_wq) {
7847                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7848                      fcp_qidx++)
7849                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7850         }
7851         /* Unset mailbox command complete queue */
7852         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7853         /* Unset ELS complete queue */
7854         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7855         /* Unset FCP response complete queue */
7856         if (phba->sli4_hba.fcp_cq) {
7857                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7858                      fcp_qidx++)
7859                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7860         }
7861         /* Unset fast-path event queue */
7862         if (phba->sli4_hba.hba_eq) {
7863                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7864                      fcp_qidx++)
7865                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7866         }
7867 }
7868
7869 /**
7870  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7871  * @phba: pointer to lpfc hba data structure.
7872  *
7873  * This routine is invoked to allocate and set up a pool of completion queue
7874  * events. The body of the completion queue event is a completion queue entry
7875  * CQE. For now, this pool is used for the interrupt service routine to queue
7876  * the following HBA completion queue events for the worker thread to process:
7877  *   - Mailbox asynchronous events
7878  *   - Receive queue completion unsolicited events
7879  * Later, this can be used for all the slow-path events.
7880  *
7881  * Return codes
7882  *      0 - successful
7883  *      -ENOMEM - No available memory
7884  **/
7885 static int
7886 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7887 {
7888         struct lpfc_cq_event *cq_event;
7889         int i;
7890
7891         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7892                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7893                 if (!cq_event)
7894                         goto out_pool_create_fail;
7895                 list_add_tail(&cq_event->list,
7896                               &phba->sli4_hba.sp_cqe_event_pool);
7897         }
7898         return 0;
7899
7900 out_pool_create_fail:
7901         lpfc_sli4_cq_event_pool_destroy(phba);
7902         return -ENOMEM;
7903 }
7904
7905 /**
7906  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7907  * @phba: pointer to lpfc hba data structure.
7908  *
7909  * This routine is invoked to free the pool of completion queue events at
7910  * driver unload time. Note that, it is the responsibility of the driver
7911  * cleanup routine to free all the outstanding completion-queue events
7912  * allocated from this pool back into the pool before invoking this routine
7913  * to destroy the pool.
7914  **/
7915 static void
7916 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7917 {
7918         struct lpfc_cq_event *cq_event, *next_cq_event;
7919
7920         list_for_each_entry_safe(cq_event, next_cq_event,
7921                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7922                 list_del(&cq_event->list);
7923                 kfree(cq_event);
7924         }
7925 }
7926
7927 /**
7928  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7929  * @phba: pointer to lpfc hba data structure.
7930  *
7931  * This routine is the lock free version of the API invoked to allocate a
7932  * completion-queue event from the free pool.
7933  *
7934  * Return: Pointer to the newly allocated completion-queue event if successful
7935  *         NULL otherwise.
7936  **/
7937 struct lpfc_cq_event *
7938 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7939 {
7940         struct lpfc_cq_event *cq_event = NULL;
7941
7942         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7943                          struct lpfc_cq_event, list);
7944         return cq_event;
7945 }
7946
7947 /**
7948  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7949  * @phba: pointer to lpfc hba data structure.
7950  *
7951  * This routine is the lock version of the API invoked to allocate a
7952  * completion-queue event from the free pool.
7953  *
7954  * Return: Pointer to the newly allocated completion-queue event if successful
7955  *         NULL otherwise.
7956  **/
7957 struct lpfc_cq_event *
7958 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7959 {
7960         struct lpfc_cq_event *cq_event;
7961         unsigned long iflags;
7962
7963         spin_lock_irqsave(&phba->hbalock, iflags);
7964         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7965         spin_unlock_irqrestore(&phba->hbalock, iflags);
7966         return cq_event;
7967 }
7968
7969 /**
7970  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7971  * @phba: pointer to lpfc hba data structure.
7972  * @cq_event: pointer to the completion queue event to be freed.
7973  *
7974  * This routine is the lock free version of the API invoked to release a
7975  * completion-queue event back into the free pool.
7976  **/
7977 void
7978 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7979                              struct lpfc_cq_event *cq_event)
7980 {
7981         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7982 }
7983
7984 /**
7985  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7986  * @phba: pointer to lpfc hba data structure.
7987  * @cq_event: pointer to the completion queue event to be freed.
7988  *
7989  * This routine is the lock version of the API invoked to release a
7990  * completion-queue event back into the free pool.
7991  **/
7992 void
7993 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7994                            struct lpfc_cq_event *cq_event)
7995 {
7996         unsigned long iflags;
7997         spin_lock_irqsave(&phba->hbalock, iflags);
7998         __lpfc_sli4_cq_event_release(phba, cq_event);
7999         spin_unlock_irqrestore(&phba->hbalock, iflags);
8000 }
8001
8002 /**
8003  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
8004  * @phba: pointer to lpfc hba data structure.
8005  *
8006  * This routine is to free all the pending completion-queue events to the
8007  * back into the free pool for device reset.
8008  **/
8009 static void
8010 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
8011 {
8012         LIST_HEAD(cqelist);
8013         struct lpfc_cq_event *cqe;
8014         unsigned long iflags;
8015
8016         /* Retrieve all the pending WCQEs from pending WCQE lists */
8017         spin_lock_irqsave(&phba->hbalock, iflags);
8018         /* Pending FCP XRI abort events */
8019         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8020                          &cqelist);
8021         /* Pending ELS XRI abort events */
8022         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8023                          &cqelist);
8024         /* Pending asynnc events */
8025         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
8026                          &cqelist);
8027         spin_unlock_irqrestore(&phba->hbalock, iflags);
8028
8029         while (!list_empty(&cqelist)) {
8030                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
8031                 lpfc_sli4_cq_event_release(phba, cqe);
8032         }
8033 }
8034
8035 /**
8036  * lpfc_pci_function_reset - Reset pci function.
8037  * @phba: pointer to lpfc hba data structure.
8038  *
8039  * This routine is invoked to request a PCI function reset. It will destroys
8040  * all resources assigned to the PCI function which originates this request.
8041  *
8042  * Return codes
8043  *      0 - successful
8044  *      -ENOMEM - No available memory
8045  *      -EIO - The mailbox failed to complete successfully.
8046  **/
8047 int
8048 lpfc_pci_function_reset(struct lpfc_hba *phba)
8049 {
8050         LPFC_MBOXQ_t *mboxq;
8051         uint32_t rc = 0, if_type;
8052         uint32_t shdr_status, shdr_add_status;
8053         uint32_t rdy_chk;
8054         uint32_t port_reset = 0;
8055         union lpfc_sli4_cfg_shdr *shdr;
8056         struct lpfc_register reg_data;
8057         uint16_t devid;
8058
8059         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8060         switch (if_type) {
8061         case LPFC_SLI_INTF_IF_TYPE_0:
8062                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8063                                                        GFP_KERNEL);
8064                 if (!mboxq) {
8065                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8066                                         "0494 Unable to allocate memory for "
8067                                         "issuing SLI_FUNCTION_RESET mailbox "
8068                                         "command\n");
8069                         return -ENOMEM;
8070                 }
8071
8072                 /* Setup PCI function reset mailbox-ioctl command */
8073                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8074                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8075                                  LPFC_SLI4_MBX_EMBED);
8076                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8077                 shdr = (union lpfc_sli4_cfg_shdr *)
8078                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8079                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8080                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8081                                          &shdr->response);
8082                 if (rc != MBX_TIMEOUT)
8083                         mempool_free(mboxq, phba->mbox_mem_pool);
8084                 if (shdr_status || shdr_add_status || rc) {
8085                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8086                                         "0495 SLI_FUNCTION_RESET mailbox "
8087                                         "failed with status x%x add_status x%x,"
8088                                         " mbx status x%x\n",
8089                                         shdr_status, shdr_add_status, rc);
8090                         rc = -ENXIO;
8091                 }
8092                 break;
8093         case LPFC_SLI_INTF_IF_TYPE_2:
8094 wait:
8095                 /*
8096                  * Poll the Port Status Register and wait for RDY for
8097                  * up to 30 seconds. If the port doesn't respond, treat
8098                  * it as an error.
8099                  */
8100                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8101                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
8102                                 STATUSregaddr, &reg_data.word0)) {
8103                                 rc = -ENODEV;
8104                                 goto out;
8105                         }
8106                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
8107                                 break;
8108                         msleep(20);
8109                 }
8110
8111                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
8112                         phba->work_status[0] = readl(
8113                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
8114                         phba->work_status[1] = readl(
8115                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
8116                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8117                                         "2890 Port not ready, port status reg "
8118                                         "0x%x error 1=0x%x, error 2=0x%x\n",
8119                                         reg_data.word0,
8120                                         phba->work_status[0],
8121                                         phba->work_status[1]);
8122                         rc = -ENODEV;
8123                         goto out;
8124                 }
8125
8126                 if (!port_reset) {
8127                         /*
8128                          * Reset the port now
8129                          */
8130                         reg_data.word0 = 0;
8131                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
8132                                LPFC_SLIPORT_LITTLE_ENDIAN);
8133                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
8134                                LPFC_SLIPORT_INIT_PORT);
8135                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8136                                CTRLregaddr);
8137                         /* flush */
8138                         pci_read_config_word(phba->pcidev,
8139                                              PCI_DEVICE_ID, &devid);
8140
8141                         port_reset = 1;
8142                         msleep(20);
8143                         goto wait;
8144                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
8145                         rc = -ENODEV;
8146                         goto out;
8147                 }
8148                 break;
8149
8150         case LPFC_SLI_INTF_IF_TYPE_1:
8151         default:
8152                 break;
8153         }
8154
8155 out:
8156         /* Catch the not-ready port failure after a port reset. */
8157         if (rc) {
8158                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8159                                 "3317 HBA not functional: IP Reset Failed "
8160                                 "try: echo fw_reset > board_mode\n");
8161                 rc = -ENODEV;
8162         }
8163
8164         return rc;
8165 }
8166
8167 /**
8168  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8169  * @phba: pointer to lpfc hba data structure.
8170  *
8171  * This routine is invoked to set up the PCI device memory space for device
8172  * with SLI-4 interface spec.
8173  *
8174  * Return codes
8175  *      0 - successful
8176  *      other values - error
8177  **/
8178 static int
8179 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8180 {
8181         struct pci_dev *pdev;
8182         unsigned long bar0map_len, bar1map_len, bar2map_len;
8183         int error = -ENODEV;
8184         uint32_t if_type;
8185
8186         /* Obtain PCI device reference */
8187         if (!phba->pcidev)
8188                 return error;
8189         else
8190                 pdev = phba->pcidev;
8191
8192         /* Set the device DMA mask size */
8193         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8194          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8195                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8196                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8197                         return error;
8198                 }
8199         }
8200
8201         /*
8202          * The BARs and register set definitions and offset locations are
8203          * dependent on the if_type.
8204          */
8205         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8206                                   &phba->sli4_hba.sli_intf.word0)) {
8207                 return error;
8208         }
8209
8210         /* There is no SLI3 failback for SLI4 devices. */
8211         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8212             LPFC_SLI_INTF_VALID) {
8213                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8214                                 "2894 SLI_INTF reg contents invalid "
8215                                 "sli_intf reg 0x%x\n",
8216                                 phba->sli4_hba.sli_intf.word0);
8217                 return error;
8218         }
8219
8220         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8221         /*
8222          * Get the bus address of SLI4 device Bar regions and the
8223          * number of bytes required by each mapping. The mapping of the
8224          * particular PCI BARs regions is dependent on the type of
8225          * SLI4 device.
8226          */
8227         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8228                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8229                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8230
8231                 /*
8232                  * Map SLI4 PCI Config Space Register base to a kernel virtual
8233                  * addr
8234                  */
8235                 phba->sli4_hba.conf_regs_memmap_p =
8236                         ioremap(phba->pci_bar0_map, bar0map_len);
8237                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8238                         dev_printk(KERN_ERR, &pdev->dev,
8239                                    "ioremap failed for SLI4 PCI config "
8240                                    "registers.\n");
8241                         goto out;
8242                 }
8243                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8244                 /* Set up BAR0 PCI config space register memory map */
8245                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8246         } else {
8247                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8248                 bar0map_len = pci_resource_len(pdev, 1);
8249                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8250                         dev_printk(KERN_ERR, &pdev->dev,
8251                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8252                         goto out;
8253                 }
8254                 phba->sli4_hba.conf_regs_memmap_p =
8255                                 ioremap(phba->pci_bar0_map, bar0map_len);
8256                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8257                         dev_printk(KERN_ERR, &pdev->dev,
8258                                 "ioremap failed for SLI4 PCI config "
8259                                 "registers.\n");
8260                                 goto out;
8261                 }
8262                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8263         }
8264
8265         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8266             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8267                 /*
8268                  * Map SLI4 if type 0 HBA Control Register base to a kernel
8269                  * virtual address and setup the registers.
8270                  */
8271                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8272                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8273                 phba->sli4_hba.ctrl_regs_memmap_p =
8274                                 ioremap(phba->pci_bar1_map, bar1map_len);
8275                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8276                         dev_printk(KERN_ERR, &pdev->dev,
8277                            "ioremap failed for SLI4 HBA control registers.\n");
8278                         goto out_iounmap_conf;
8279                 }
8280                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8281                 lpfc_sli4_bar1_register_memmap(phba);
8282         }
8283
8284         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8285             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8286                 /*
8287                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8288                  * virtual address and setup the registers.
8289                  */
8290                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8291                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8292                 phba->sli4_hba.drbl_regs_memmap_p =
8293                                 ioremap(phba->pci_bar2_map, bar2map_len);
8294                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8295                         dev_printk(KERN_ERR, &pdev->dev,
8296                            "ioremap failed for SLI4 HBA doorbell registers.\n");
8297                         goto out_iounmap_ctrl;
8298                 }
8299                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8300                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8301                 if (error)
8302                         goto out_iounmap_all;
8303         }
8304
8305         return 0;
8306
8307 out_iounmap_all:
8308         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8309 out_iounmap_ctrl:
8310         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8311 out_iounmap_conf:
8312         iounmap(phba->sli4_hba.conf_regs_memmap_p);
8313 out:
8314         return error;
8315 }
8316
8317 /**
8318  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8319  * @phba: pointer to lpfc hba data structure.
8320  *
8321  * This routine is invoked to unset the PCI device memory space for device
8322  * with SLI-4 interface spec.
8323  **/
8324 static void
8325 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8326 {
8327         uint32_t if_type;
8328         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8329
8330         switch (if_type) {
8331         case LPFC_SLI_INTF_IF_TYPE_0:
8332                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8333                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8334                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8335                 break;
8336         case LPFC_SLI_INTF_IF_TYPE_2:
8337                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8338                 break;
8339         case LPFC_SLI_INTF_IF_TYPE_1:
8340         default:
8341                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8342                            "FATAL - unsupported SLI4 interface type - %d\n",
8343                            if_type);
8344                 break;
8345         }
8346 }
8347
8348 /**
8349  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8350  * @phba: pointer to lpfc hba data structure.
8351  *
8352  * This routine is invoked to enable the MSI-X interrupt vectors to device
8353  * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8354  * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8355  * once invoked, enables either all or nothing, depending on the current
8356  * availability of PCI vector resources. The device driver is responsible
8357  * for calling the individual request_irq() to register each MSI-X vector
8358  * with a interrupt handler, which is done in this function. Note that
8359  * later when device is unloading, the driver should always call free_irq()
8360  * on all MSI-X vectors it has done request_irq() on before calling
8361  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8362  * will be left with MSI-X enabled and leaks its vectors.
8363  *
8364  * Return codes
8365  *   0 - successful
8366  *   other values - error
8367  **/
8368 static int
8369 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8370 {
8371         int rc, i;
8372         LPFC_MBOXQ_t *pmb;
8373
8374         /* Set up MSI-X multi-message vectors */
8375         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8376                 phba->msix_entries[i].entry = i;
8377
8378         /* Configure MSI-X capability structure */
8379         rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8380                                    LPFC_MSIX_VECTORS);
8381         if (rc) {
8382                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8383                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
8384                 goto vec_fail_out;
8385         }
8386         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8387                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8388                                 "0477 MSI-X entry[%d]: vector=x%x "
8389                                 "message=%d\n", i,
8390                                 phba->msix_entries[i].vector,
8391                                 phba->msix_entries[i].entry);
8392         /*
8393          * Assign MSI-X vectors to interrupt handlers
8394          */
8395
8396         /* vector-0 is associated to slow-path handler */
8397         rc = request_irq(phba->msix_entries[0].vector,
8398                          &lpfc_sli_sp_intr_handler, 0,
8399                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
8400         if (rc) {
8401                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8402                                 "0421 MSI-X slow-path request_irq failed "
8403                                 "(%d)\n", rc);
8404                 goto msi_fail_out;
8405         }
8406
8407         /* vector-1 is associated to fast-path handler */
8408         rc = request_irq(phba->msix_entries[1].vector,
8409                          &lpfc_sli_fp_intr_handler, 0,
8410                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
8411
8412         if (rc) {
8413                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8414                                 "0429 MSI-X fast-path request_irq failed "
8415                                 "(%d)\n", rc);
8416                 goto irq_fail_out;
8417         }
8418
8419         /*
8420          * Configure HBA MSI-X attention conditions to messages
8421          */
8422         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8423
8424         if (!pmb) {
8425                 rc = -ENOMEM;
8426                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8427                                 "0474 Unable to allocate memory for issuing "
8428                                 "MBOX_CONFIG_MSI command\n");
8429                 goto mem_fail_out;
8430         }
8431         rc = lpfc_config_msi(phba, pmb);
8432         if (rc)
8433                 goto mbx_fail_out;
8434         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8435         if (rc != MBX_SUCCESS) {
8436                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8437                                 "0351 Config MSI mailbox command failed, "
8438                                 "mbxCmd x%x, mbxStatus x%x\n",
8439                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8440                 goto mbx_fail_out;
8441         }
8442
8443         /* Free memory allocated for mailbox command */
8444         mempool_free(pmb, phba->mbox_mem_pool);
8445         return rc;
8446
8447 mbx_fail_out:
8448         /* Free memory allocated for mailbox command */
8449         mempool_free(pmb, phba->mbox_mem_pool);
8450
8451 mem_fail_out:
8452         /* free the irq already requested */
8453         free_irq(phba->msix_entries[1].vector, phba);
8454
8455 irq_fail_out:
8456         /* free the irq already requested */
8457         free_irq(phba->msix_entries[0].vector, phba);
8458
8459 msi_fail_out:
8460         /* Unconfigure MSI-X capability structure */
8461         pci_disable_msix(phba->pcidev);
8462
8463 vec_fail_out:
8464         return rc;
8465 }
8466
8467 /**
8468  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8469  * @phba: pointer to lpfc hba data structure.
8470  *
8471  * This routine is invoked to release the MSI-X vectors and then disable the
8472  * MSI-X interrupt mode to device with SLI-3 interface spec.
8473  **/
8474 static void
8475 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8476 {
8477         int i;
8478
8479         /* Free up MSI-X multi-message vectors */
8480         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8481                 free_irq(phba->msix_entries[i].vector, phba);
8482         /* Disable MSI-X */
8483         pci_disable_msix(phba->pcidev);
8484
8485         return;
8486 }
8487
8488 /**
8489  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8490  * @phba: pointer to lpfc hba data structure.
8491  *
8492  * This routine is invoked to enable the MSI interrupt mode to device with
8493  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8494  * enable the MSI vector. The device driver is responsible for calling the
8495  * request_irq() to register MSI vector with a interrupt the handler, which
8496  * is done in this function.
8497  *
8498  * Return codes
8499  *      0 - successful
8500  *      other values - error
8501  */
8502 static int
8503 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8504 {
8505         int rc;
8506
8507         rc = pci_enable_msi(phba->pcidev);
8508         if (!rc)
8509                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8510                                 "0462 PCI enable MSI mode success.\n");
8511         else {
8512                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8513                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8514                 return rc;
8515         }
8516
8517         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8518                          0, LPFC_DRIVER_NAME, phba);
8519         if (rc) {
8520                 pci_disable_msi(phba->pcidev);
8521                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8522                                 "0478 MSI request_irq failed (%d)\n", rc);
8523         }
8524         return rc;
8525 }
8526
8527 /**
8528  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8529  * @phba: pointer to lpfc hba data structure.
8530  *
8531  * This routine is invoked to disable the MSI interrupt mode to device with
8532  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8533  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8534  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8535  * its vector.
8536  */
8537 static void
8538 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8539 {
8540         free_irq(phba->pcidev->irq, phba);
8541         pci_disable_msi(phba->pcidev);
8542         return;
8543 }
8544
8545 /**
8546  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8547  * @phba: pointer to lpfc hba data structure.
8548  *
8549  * This routine is invoked to enable device interrupt and associate driver's
8550  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8551  * spec. Depends on the interrupt mode configured to the driver, the driver
8552  * will try to fallback from the configured interrupt mode to an interrupt
8553  * mode which is supported by the platform, kernel, and device in the order
8554  * of:
8555  * MSI-X -> MSI -> IRQ.
8556  *
8557  * Return codes
8558  *   0 - successful
8559  *   other values - error
8560  **/
8561 static uint32_t
8562 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8563 {
8564         uint32_t intr_mode = LPFC_INTR_ERROR;
8565         int retval;
8566
8567         if (cfg_mode == 2) {
8568                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8569                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8570                 if (!retval) {
8571                         /* Now, try to enable MSI-X interrupt mode */
8572                         retval = lpfc_sli_enable_msix(phba);
8573                         if (!retval) {
8574                                 /* Indicate initialization to MSI-X mode */
8575                                 phba->intr_type = MSIX;
8576                                 intr_mode = 2;
8577                         }
8578                 }
8579         }
8580
8581         /* Fallback to MSI if MSI-X initialization failed */
8582         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8583                 retval = lpfc_sli_enable_msi(phba);
8584                 if (!retval) {
8585                         /* Indicate initialization to MSI mode */
8586                         phba->intr_type = MSI;
8587                         intr_mode = 1;
8588                 }
8589         }
8590
8591         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8592         if (phba->intr_type == NONE) {
8593                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8594                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8595                 if (!retval) {
8596                         /* Indicate initialization to INTx mode */
8597                         phba->intr_type = INTx;
8598                         intr_mode = 0;
8599                 }
8600         }
8601         return intr_mode;
8602 }
8603
8604 /**
8605  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8606  * @phba: pointer to lpfc hba data structure.
8607  *
8608  * This routine is invoked to disable device interrupt and disassociate the
8609  * driver's interrupt handler(s) from interrupt vector(s) to device with
8610  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8611  * release the interrupt vector(s) for the message signaled interrupt.
8612  **/
8613 static void
8614 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8615 {
8616         /* Disable the currently initialized interrupt mode */
8617         if (phba->intr_type == MSIX)
8618                 lpfc_sli_disable_msix(phba);
8619         else if (phba->intr_type == MSI)
8620                 lpfc_sli_disable_msi(phba);
8621         else if (phba->intr_type == INTx)
8622                 free_irq(phba->pcidev->irq, phba);
8623
8624         /* Reset interrupt management states */
8625         phba->intr_type = NONE;
8626         phba->sli.slistat.sli_intr = 0;
8627
8628         return;
8629 }
8630
8631 /**
8632  * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8633  * @phba: pointer to lpfc hba data structure.
8634  *
8635  * Find next available CPU to use for IRQ to CPU affinity.
8636  */
8637 static int
8638 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8639 {
8640         struct lpfc_vector_map_info *cpup;
8641         int cpu;
8642
8643         cpup = phba->sli4_hba.cpu_map;
8644         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8645                 /* CPU must be online */
8646                 if (cpu_online(cpu)) {
8647                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8648                             (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8649                             (cpup->phys_id == phys_id)) {
8650                                 return cpu;
8651                         }
8652                 }
8653                 cpup++;
8654         }
8655
8656         /*
8657          * If we get here, we have used ALL CPUs for the specific
8658          * phys_id. Now we need to clear out lpfc_used_cpu and start
8659          * reusing CPUs.
8660          */
8661
8662         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8663                 if (lpfc_used_cpu[cpu] == phys_id)
8664                         lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8665         }
8666
8667         cpup = phba->sli4_hba.cpu_map;
8668         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8669                 /* CPU must be online */
8670                 if (cpu_online(cpu)) {
8671                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8672                             (cpup->phys_id == phys_id)) {
8673                                 return cpu;
8674                         }
8675                 }
8676                 cpup++;
8677         }
8678         return LPFC_VECTOR_MAP_EMPTY;
8679 }
8680
8681 /**
8682  * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8683  * @phba:       pointer to lpfc hba data structure.
8684  * @vectors:    number of HBA vectors
8685  *
8686  * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8687  * affinization across multple physical CPUs (numa nodes).
8688  * In addition, this routine will assign an IO channel for each CPU
8689  * to use when issuing I/Os.
8690  */
8691 static int
8692 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8693 {
8694         int i, idx, saved_chann, used_chann, cpu, phys_id;
8695         int max_phys_id, min_phys_id;
8696         int num_io_channel, first_cpu, chan;
8697         struct lpfc_vector_map_info *cpup;
8698 #ifdef CONFIG_X86
8699         struct cpuinfo_x86 *cpuinfo;
8700 #endif
8701         uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8702
8703         /* If there is no mapping, just return */
8704         if (!phba->cfg_fcp_cpu_map)
8705                 return 1;
8706
8707         /* Init cpu_map array */
8708         memset(phba->sli4_hba.cpu_map, 0xff,
8709                (sizeof(struct lpfc_vector_map_info) *
8710                 phba->sli4_hba.num_present_cpu));
8711
8712         max_phys_id = 0;
8713         min_phys_id = 0xff;
8714         phys_id = 0;
8715         num_io_channel = 0;
8716         first_cpu = LPFC_VECTOR_MAP_EMPTY;
8717
8718         /* Update CPU map with physical id and core id of each CPU */
8719         cpup = phba->sli4_hba.cpu_map;
8720         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8721 #ifdef CONFIG_X86
8722                 cpuinfo = &cpu_data(cpu);
8723                 cpup->phys_id = cpuinfo->phys_proc_id;
8724                 cpup->core_id = cpuinfo->cpu_core_id;
8725 #else
8726                 /* No distinction between CPUs for other platforms */
8727                 cpup->phys_id = 0;
8728                 cpup->core_id = 0;
8729 #endif
8730
8731                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8732                                 "3328 CPU physid %d coreid %d\n",
8733                                 cpup->phys_id, cpup->core_id);
8734
8735                 if (cpup->phys_id > max_phys_id)
8736                         max_phys_id = cpup->phys_id;
8737                 if (cpup->phys_id < min_phys_id)
8738                         min_phys_id = cpup->phys_id;
8739                 cpup++;
8740         }
8741
8742         phys_id = min_phys_id;
8743         /* Now associate the HBA vectors with specific CPUs */
8744         for (idx = 0; idx < vectors; idx++) {
8745                 cpup = phba->sli4_hba.cpu_map;
8746                 cpu = lpfc_find_next_cpu(phba, phys_id);
8747                 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8748
8749                         /* Try for all phys_id's */
8750                         for (i = 1; i < max_phys_id; i++) {
8751                                 phys_id++;
8752                                 if (phys_id > max_phys_id)
8753                                         phys_id = min_phys_id;
8754                                 cpu = lpfc_find_next_cpu(phba, phys_id);
8755                                 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8756                                         continue;
8757                                 goto found;
8758                         }
8759
8760                         /* Use round robin for scheduling */
8761                         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8762                         chan = 0;
8763                         cpup = phba->sli4_hba.cpu_map;
8764                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8765                                 cpup->channel_id = chan;
8766                                 cpup++;
8767                                 chan++;
8768                                 if (chan >= phba->cfg_fcp_io_channel)
8769                                         chan = 0;
8770                         }
8771
8772                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8773                                         "3329 Cannot set affinity:"
8774                                         "Error mapping vector %d (%d)\n",
8775                                         idx, vectors);
8776                         return 0;
8777                 }
8778 found:
8779                 cpup += cpu;
8780                 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8781                         lpfc_used_cpu[cpu] = phys_id;
8782
8783                 /* Associate vector with selected CPU */
8784                 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8785
8786                 /* Associate IO channel with selected CPU */
8787                 cpup->channel_id = idx;
8788                 num_io_channel++;
8789
8790                 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8791                         first_cpu = cpu;
8792
8793                 /* Now affinitize to the selected CPU */
8794                 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8795                                           vector, get_cpu_mask(cpu));
8796
8797                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8798                                 "3330 Set Affinity: CPU %d channel %d "
8799                                 "irq %d (%x)\n",
8800                                 cpu, cpup->channel_id,
8801                                 phba->sli4_hba.msix_entries[idx].vector, i);
8802
8803                 /* Spread vector mapping across multple physical CPU nodes */
8804                 phys_id++;
8805                 if (phys_id > max_phys_id)
8806                         phys_id = min_phys_id;
8807         }
8808
8809         /*
8810          * Finally fill in the IO channel for any remaining CPUs.
8811          * At this point, all IO channels have been assigned to a specific
8812          * MSIx vector, mapped to a specific CPU.
8813          * Base the remaining IO channel assigned, to IO channels already
8814          * assigned to other CPUs on the same phys_id.
8815          */
8816         for (i = min_phys_id; i <= max_phys_id; i++) {
8817                 /*
8818                  * If there are no io channels already mapped to
8819                  * this phys_id, just round robin thru the io_channels.
8820                  * Setup chann[] for round robin.
8821                  */
8822                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8823                         chann[idx] = idx;
8824
8825                 saved_chann = 0;
8826                 used_chann = 0;
8827
8828                 /*
8829                  * First build a list of IO channels already assigned
8830                  * to this phys_id before reassigning the same IO
8831                  * channels to the remaining CPUs.
8832                  */
8833                 cpup = phba->sli4_hba.cpu_map;
8834                 cpu = first_cpu;
8835                 cpup += cpu;
8836                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8837                      idx++) {
8838                         if (cpup->phys_id == i) {
8839                                 /*
8840                                  * Save any IO channels that are
8841                                  * already mapped to this phys_id.
8842                                  */
8843                                 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8844                                         if (saved_chann <=
8845                                             LPFC_FCP_IO_CHAN_MAX) {
8846                                                 chann[saved_chann] =
8847                                                         cpup->channel_id;
8848                                                 saved_chann++;
8849                                         }
8850                                         goto out;
8851                                 }
8852
8853                                 /* See if we are using round-robin */
8854                                 if (saved_chann == 0)
8855                                         saved_chann =
8856                                                 phba->cfg_fcp_io_channel;
8857
8858                                 /* Associate next IO channel with CPU */
8859                                 cpup->channel_id = chann[used_chann];
8860                                 num_io_channel++;
8861                                 used_chann++;
8862                                 if (used_chann == saved_chann)
8863                                         used_chann = 0;
8864
8865                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8866                                                 "3331 Set IO_CHANN "
8867                                                 "CPU %d channel %d\n",
8868                                                 idx, cpup->channel_id);
8869                         }
8870 out:
8871                         cpu++;
8872                         if (cpu >= phba->sli4_hba.num_present_cpu) {
8873                                 cpup = phba->sli4_hba.cpu_map;
8874                                 cpu = 0;
8875                         } else {
8876                                 cpup++;
8877                         }
8878                 }
8879         }
8880
8881         if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8882                 cpup = phba->sli4_hba.cpu_map;
8883                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8884                         if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8885                                 cpup->channel_id = 0;
8886                                 num_io_channel++;
8887
8888                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8889                                                 "3332 Assign IO_CHANN "
8890                                                 "CPU %d channel %d\n",
8891                                                 idx, cpup->channel_id);
8892                         }
8893                         cpup++;
8894                 }
8895         }
8896
8897         /* Sanity check */
8898         if (num_io_channel != phba->sli4_hba.num_present_cpu)
8899                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8900                                 "3333 Set affinity mismatch:"
8901                                 "%d chann != %d cpus: %d vectors\n",
8902                                 num_io_channel, phba->sli4_hba.num_present_cpu,
8903                                 vectors);
8904
8905         /* Enable using cpu affinity for scheduling */
8906         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8907         return 1;
8908 }
8909
8910
8911 /**
8912  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8913  * @phba: pointer to lpfc hba data structure.
8914  *
8915  * This routine is invoked to enable the MSI-X interrupt vectors to device
8916  * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
8917  * is called to enable the MSI-X vectors. The device driver is responsible
8918  * for calling the individual request_irq() to register each MSI-X vector
8919  * with a interrupt handler, which is done in this function. Note that
8920  * later when device is unloading, the driver should always call free_irq()
8921  * on all MSI-X vectors it has done request_irq() on before calling
8922  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8923  * will be left with MSI-X enabled and leaks its vectors.
8924  *
8925  * Return codes
8926  * 0 - successful
8927  * other values - error
8928  **/
8929 static int
8930 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8931 {
8932         int vectors, rc, index;
8933
8934         /* Set up MSI-X multi-message vectors */
8935         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8936                 phba->sli4_hba.msix_entries[index].entry = index;
8937
8938         /* Configure MSI-X capability structure */
8939         vectors = phba->cfg_fcp_io_channel;
8940         if (phba->cfg_fof) {
8941                 phba->sli4_hba.msix_entries[index].entry = index;
8942                 vectors++;
8943         }
8944         rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
8945                                    2, vectors);
8946         if (rc < 0) {
8947                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8948                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8949                 goto vec_fail_out;
8950         }
8951         vectors = rc;
8952
8953         /* Log MSI-X vector assignment */
8954         for (index = 0; index < vectors; index++)
8955                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8956                                 "0489 MSI-X entry[%d]: vector=x%x "
8957                                 "message=%d\n", index,
8958                                 phba->sli4_hba.msix_entries[index].vector,
8959                                 phba->sli4_hba.msix_entries[index].entry);
8960
8961         /* Assign MSI-X vectors to interrupt handlers */
8962         for (index = 0; index < vectors; index++) {
8963                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8964                 snprintf((char *)&phba->sli4_hba.handler_name[index],
8965                          LPFC_SLI4_HANDLER_NAME_SZ,
8966                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8967
8968                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8969                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8970                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8971                 if (phba->cfg_fof && (index == (vectors - 1)))
8972                         rc = request_irq(
8973                                 phba->sli4_hba.msix_entries[index].vector,
8974                                  &lpfc_sli4_fof_intr_handler, 0,
8975                                  (char *)&phba->sli4_hba.handler_name[index],
8976                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8977                 else
8978                         rc = request_irq(
8979                                 phba->sli4_hba.msix_entries[index].vector,
8980                                  &lpfc_sli4_hba_intr_handler, 0,
8981                                  (char *)&phba->sli4_hba.handler_name[index],
8982                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8983                 if (rc) {
8984                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8985                                         "0486 MSI-X fast-path (%d) "
8986                                         "request_irq failed (%d)\n", index, rc);
8987                         goto cfg_fail_out;
8988                 }
8989         }
8990
8991         if (phba->cfg_fof)
8992                 vectors--;
8993
8994         if (vectors != phba->cfg_fcp_io_channel) {
8995                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8996                                 "3238 Reducing IO channels to match number of "
8997                                 "MSI-X vectors, requested %d got %d\n",
8998                                 phba->cfg_fcp_io_channel, vectors);
8999                 phba->cfg_fcp_io_channel = vectors;
9000         }
9001
9002         if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport)))
9003                 lpfc_sli4_set_affinity(phba, vectors);
9004         return rc;
9005
9006 cfg_fail_out:
9007         /* free the irq already requested */
9008         for (--index; index >= 0; index--) {
9009                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9010                                           vector, NULL);
9011                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9012                          &phba->sli4_hba.fcp_eq_hdl[index]);
9013         }
9014
9015         /* Unconfigure MSI-X capability structure */
9016         pci_disable_msix(phba->pcidev);
9017
9018 vec_fail_out:
9019         return rc;
9020 }
9021
9022 /**
9023  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
9024  * @phba: pointer to lpfc hba data structure.
9025  *
9026  * This routine is invoked to release the MSI-X vectors and then disable the
9027  * MSI-X interrupt mode to device with SLI-4 interface spec.
9028  **/
9029 static void
9030 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
9031 {
9032         int index;
9033
9034         /* Free up MSI-X multi-message vectors */
9035         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9036                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9037                                           vector, NULL);
9038                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9039                          &phba->sli4_hba.fcp_eq_hdl[index]);
9040         }
9041         if (phba->cfg_fof) {
9042                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9043                          &phba->sli4_hba.fcp_eq_hdl[index]);
9044         }
9045         /* Disable MSI-X */
9046         pci_disable_msix(phba->pcidev);
9047
9048         return;
9049 }
9050
9051 /**
9052  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9053  * @phba: pointer to lpfc hba data structure.
9054  *
9055  * This routine is invoked to enable the MSI interrupt mode to device with
9056  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9057  * to enable the MSI vector. The device driver is responsible for calling
9058  * the request_irq() to register MSI vector with a interrupt the handler,
9059  * which is done in this function.
9060  *
9061  * Return codes
9062  *      0 - successful
9063  *      other values - error
9064  **/
9065 static int
9066 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9067 {
9068         int rc, index;
9069
9070         rc = pci_enable_msi(phba->pcidev);
9071         if (!rc)
9072                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9073                                 "0487 PCI enable MSI mode success.\n");
9074         else {
9075                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9076                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
9077                 return rc;
9078         }
9079
9080         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9081                          0, LPFC_DRIVER_NAME, phba);
9082         if (rc) {
9083                 pci_disable_msi(phba->pcidev);
9084                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9085                                 "0490 MSI request_irq failed (%d)\n", rc);
9086                 return rc;
9087         }
9088
9089         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9090                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9091                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9092         }
9093
9094         if (phba->cfg_fof) {
9095                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9096                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9097         }
9098         return 0;
9099 }
9100
9101 /**
9102  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9103  * @phba: pointer to lpfc hba data structure.
9104  *
9105  * This routine is invoked to disable the MSI interrupt mode to device with
9106  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9107  * done request_irq() on before calling pci_disable_msi(). Failure to do so
9108  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9109  * its vector.
9110  **/
9111 static void
9112 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9113 {
9114         free_irq(phba->pcidev->irq, phba);
9115         pci_disable_msi(phba->pcidev);
9116         return;
9117 }
9118
9119 /**
9120  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9121  * @phba: pointer to lpfc hba data structure.
9122  *
9123  * This routine is invoked to enable device interrupt and associate driver's
9124  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9125  * interface spec. Depends on the interrupt mode configured to the driver,
9126  * the driver will try to fallback from the configured interrupt mode to an
9127  * interrupt mode which is supported by the platform, kernel, and device in
9128  * the order of:
9129  * MSI-X -> MSI -> IRQ.
9130  *
9131  * Return codes
9132  *      0 - successful
9133  *      other values - error
9134  **/
9135 static uint32_t
9136 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9137 {
9138         uint32_t intr_mode = LPFC_INTR_ERROR;
9139         int retval, index;
9140
9141         if (cfg_mode == 2) {
9142                 /* Preparation before conf_msi mbox cmd */
9143                 retval = 0;
9144                 if (!retval) {
9145                         /* Now, try to enable MSI-X interrupt mode */
9146                         retval = lpfc_sli4_enable_msix(phba);
9147                         if (!retval) {
9148                                 /* Indicate initialization to MSI-X mode */
9149                                 phba->intr_type = MSIX;
9150                                 intr_mode = 2;
9151                         }
9152                 }
9153         }
9154
9155         /* Fallback to MSI if MSI-X initialization failed */
9156         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9157                 retval = lpfc_sli4_enable_msi(phba);
9158                 if (!retval) {
9159                         /* Indicate initialization to MSI mode */
9160                         phba->intr_type = MSI;
9161                         intr_mode = 1;
9162                 }
9163         }
9164
9165         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9166         if (phba->intr_type == NONE) {
9167                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9168                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9169                 if (!retval) {
9170                         /* Indicate initialization to INTx mode */
9171                         phba->intr_type = INTx;
9172                         intr_mode = 0;
9173                         for (index = 0; index < phba->cfg_fcp_io_channel;
9174                              index++) {
9175                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9176                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9177                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9178                                         fcp_eq_in_use, 1);
9179                         }
9180                         if (phba->cfg_fof) {
9181                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9182                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9183                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9184                                         fcp_eq_in_use, 1);
9185                         }
9186                 }
9187         }
9188         return intr_mode;
9189 }
9190
9191 /**
9192  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9193  * @phba: pointer to lpfc hba data structure.
9194  *
9195  * This routine is invoked to disable device interrupt and disassociate
9196  * the driver's interrupt handler(s) from interrupt vector(s) to device
9197  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9198  * will release the interrupt vector(s) for the message signaled interrupt.
9199  **/
9200 static void
9201 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9202 {
9203         /* Disable the currently initialized interrupt mode */
9204         if (phba->intr_type == MSIX)
9205                 lpfc_sli4_disable_msix(phba);
9206         else if (phba->intr_type == MSI)
9207                 lpfc_sli4_disable_msi(phba);
9208         else if (phba->intr_type == INTx)
9209                 free_irq(phba->pcidev->irq, phba);
9210
9211         /* Reset interrupt management states */
9212         phba->intr_type = NONE;
9213         phba->sli.slistat.sli_intr = 0;
9214
9215         return;
9216 }
9217
9218 /**
9219  * lpfc_unset_hba - Unset SLI3 hba device initialization
9220  * @phba: pointer to lpfc hba data structure.
9221  *
9222  * This routine is invoked to unset the HBA device initialization steps to
9223  * a device with SLI-3 interface spec.
9224  **/
9225 static void
9226 lpfc_unset_hba(struct lpfc_hba *phba)
9227 {
9228         struct lpfc_vport *vport = phba->pport;
9229         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
9230
9231         spin_lock_irq(shost->host_lock);
9232         vport->load_flag |= FC_UNLOADING;
9233         spin_unlock_irq(shost->host_lock);
9234
9235         kfree(phba->vpi_bmask);
9236         kfree(phba->vpi_ids);
9237
9238         lpfc_stop_hba_timers(phba);
9239
9240         phba->pport->work_port_events = 0;
9241
9242         lpfc_sli_hba_down(phba);
9243
9244         lpfc_sli_brdrestart(phba);
9245
9246         lpfc_sli_disable_intr(phba);
9247
9248         return;
9249 }
9250
9251 /**
9252  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9253  * @phba: Pointer to HBA context object.
9254  *
9255  * This function is called in the SLI4 code path to wait for completion
9256  * of device's XRIs exchange busy. It will check the XRI exchange busy
9257  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9258  * that, it will check the XRI exchange busy on outstanding FCP and ELS
9259  * I/Os every 30 seconds, log error message, and wait forever. Only when
9260  * all XRI exchange busy complete, the driver unload shall proceed with
9261  * invoking the function reset ioctl mailbox command to the CNA and the
9262  * the rest of the driver unload resource release.
9263  **/
9264 static void
9265 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9266 {
9267         int wait_time = 0;
9268         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9269         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9270
9271         while (!fcp_xri_cmpl || !els_xri_cmpl) {
9272                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9273                         if (!fcp_xri_cmpl)
9274                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9275                                                 "2877 FCP XRI exchange busy "
9276                                                 "wait time: %d seconds.\n",
9277                                                 wait_time/1000);
9278                         if (!els_xri_cmpl)
9279                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9280                                                 "2878 ELS XRI exchange busy "
9281                                                 "wait time: %d seconds.\n",
9282                                                 wait_time/1000);
9283                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9284                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9285                 } else {
9286                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9287                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9288                 }
9289                 fcp_xri_cmpl =
9290                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9291                 els_xri_cmpl =
9292                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9293         }
9294 }
9295
9296 /**
9297  * lpfc_sli4_hba_unset - Unset the fcoe hba
9298  * @phba: Pointer to HBA context object.
9299  *
9300  * This function is called in the SLI4 code path to reset the HBA's FCoE
9301  * function. The caller is not required to hold any lock. This routine
9302  * issues PCI function reset mailbox command to reset the FCoE function.
9303  * At the end of the function, it calls lpfc_hba_down_post function to
9304  * free any pending commands.
9305  **/
9306 static void
9307 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9308 {
9309         int wait_cnt = 0;
9310         LPFC_MBOXQ_t *mboxq;
9311         struct pci_dev *pdev = phba->pcidev;
9312
9313         lpfc_stop_hba_timers(phba);
9314         phba->sli4_hba.intr_enable = 0;
9315
9316         /*
9317          * Gracefully wait out the potential current outstanding asynchronous
9318          * mailbox command.
9319          */
9320
9321         /* First, block any pending async mailbox command from posted */
9322         spin_lock_irq(&phba->hbalock);
9323         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9324         spin_unlock_irq(&phba->hbalock);
9325         /* Now, trying to wait it out if we can */
9326         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9327                 msleep(10);
9328                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9329                         break;
9330         }
9331         /* Forcefully release the outstanding mailbox command if timed out */
9332         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9333                 spin_lock_irq(&phba->hbalock);
9334                 mboxq = phba->sli.mbox_active;
9335                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9336                 __lpfc_mbox_cmpl_put(phba, mboxq);
9337                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9338                 phba->sli.mbox_active = NULL;
9339                 spin_unlock_irq(&phba->hbalock);
9340         }
9341
9342         /* Abort all iocbs associated with the hba */
9343         lpfc_sli_hba_iocb_abort(phba);
9344
9345         /* Wait for completion of device XRI exchange busy */
9346         lpfc_sli4_xri_exchange_busy_wait(phba);
9347
9348         /* Disable PCI subsystem interrupt */
9349         lpfc_sli4_disable_intr(phba);
9350
9351         /* Disable SR-IOV if enabled */
9352         if (phba->cfg_sriov_nr_virtfn)
9353                 pci_disable_sriov(pdev);
9354
9355         /* Stop kthread signal shall trigger work_done one more time */
9356         kthread_stop(phba->worker_thread);
9357
9358         /* Reset SLI4 HBA FCoE function */
9359         lpfc_pci_function_reset(phba);
9360         lpfc_sli4_queue_destroy(phba);
9361
9362         /* Stop the SLI4 device port */
9363         phba->pport->work_port_events = 0;
9364 }
9365
9366  /**
9367  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9368  * @phba: Pointer to HBA context object.
9369  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9370  *
9371  * This function is called in the SLI4 code path to read the port's
9372  * sli4 capabilities.
9373  *
9374  * This function may be be called from any context that can block-wait
9375  * for the completion.  The expectation is that this routine is called
9376  * typically from probe_one or from the online routine.
9377  **/
9378 int
9379 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9380 {
9381         int rc;
9382         struct lpfc_mqe *mqe;
9383         struct lpfc_pc_sli4_params *sli4_params;
9384         uint32_t mbox_tmo;
9385
9386         rc = 0;
9387         mqe = &mboxq->u.mqe;
9388
9389         /* Read the port's SLI4 Parameters port capabilities */
9390         lpfc_pc_sli4_params(mboxq);
9391         if (!phba->sli4_hba.intr_enable)
9392                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9393         else {
9394                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9395                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9396         }
9397
9398         if (unlikely(rc))
9399                 return 1;
9400
9401         sli4_params = &phba->sli4_hba.pc_sli4_params;
9402         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9403         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9404         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9405         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9406                                              &mqe->un.sli4_params);
9407         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9408                                              &mqe->un.sli4_params);
9409         sli4_params->proto_types = mqe->un.sli4_params.word3;
9410         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9411         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9412         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9413         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9414         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9415         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9416         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9417         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9418         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9419         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9420         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9421         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9422         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9423         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9424         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9425         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9426         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9427         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9428         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9429         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9430
9431         /* Make sure that sge_supp_len can be handled by the driver */
9432         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9433                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9434
9435         return rc;
9436 }
9437
9438 /**
9439  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9440  * @phba: Pointer to HBA context object.
9441  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9442  *
9443  * This function is called in the SLI4 code path to read the port's
9444  * sli4 capabilities.
9445  *
9446  * This function may be be called from any context that can block-wait
9447  * for the completion.  The expectation is that this routine is called
9448  * typically from probe_one or from the online routine.
9449  **/
9450 int
9451 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9452 {
9453         int rc;
9454         struct lpfc_mqe *mqe = &mboxq->u.mqe;
9455         struct lpfc_pc_sli4_params *sli4_params;
9456         uint32_t mbox_tmo;
9457         int length;
9458         struct lpfc_sli4_parameters *mbx_sli4_parameters;
9459
9460         /*
9461          * By default, the driver assumes the SLI4 port requires RPI
9462          * header postings.  The SLI4_PARAM response will correct this
9463          * assumption.
9464          */
9465         phba->sli4_hba.rpi_hdrs_in_use = 1;
9466
9467         /* Read the port's SLI4 Config Parameters */
9468         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9469                   sizeof(struct lpfc_sli4_cfg_mhdr));
9470         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9471                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9472                          length, LPFC_SLI4_MBX_EMBED);
9473         if (!phba->sli4_hba.intr_enable)
9474                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9475         else {
9476                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9477                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9478         }
9479         if (unlikely(rc))
9480                 return rc;
9481         sli4_params = &phba->sli4_hba.pc_sli4_params;
9482         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9483         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9484         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9485         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9486         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9487                                              mbx_sli4_parameters);
9488         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9489                                              mbx_sli4_parameters);
9490         if (bf_get(cfg_phwq, mbx_sli4_parameters))
9491                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9492         else
9493                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9494         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9495         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9496         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9497         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9498         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9499         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9500         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9501         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9502         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9503                                             mbx_sli4_parameters);
9504         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9505                                            mbx_sli4_parameters);
9506         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9507         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9508
9509         /* Make sure that sge_supp_len can be handled by the driver */
9510         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9511                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9512
9513         return 0;
9514 }
9515
9516 /**
9517  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9518  * @pdev: pointer to PCI device
9519  * @pid: pointer to PCI device identifier
9520  *
9521  * This routine is to be called to attach a device with SLI-3 interface spec
9522  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9523  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9524  * information of the device and driver to see if the driver state that it can
9525  * support this kind of device. If the match is successful, the driver core
9526  * invokes this routine. If this routine determines it can claim the HBA, it
9527  * does all the initialization that it needs to do to handle the HBA properly.
9528  *
9529  * Return code
9530  *      0 - driver can claim the device
9531  *      negative value - driver can not claim the device
9532  **/
9533 static int
9534 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9535 {
9536         struct lpfc_hba   *phba;
9537         struct lpfc_vport *vport = NULL;
9538         struct Scsi_Host  *shost = NULL;
9539         int error;
9540         uint32_t cfg_mode, intr_mode;
9541
9542         /* Allocate memory for HBA structure */
9543         phba = lpfc_hba_alloc(pdev);
9544         if (!phba)
9545                 return -ENOMEM;
9546
9547         /* Perform generic PCI device enabling operation */
9548         error = lpfc_enable_pci_dev(phba);
9549         if (error)
9550                 goto out_free_phba;
9551
9552         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9553         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9554         if (error)
9555                 goto out_disable_pci_dev;
9556
9557         /* Set up SLI-3 specific device PCI memory space */
9558         error = lpfc_sli_pci_mem_setup(phba);
9559         if (error) {
9560                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9561                                 "1402 Failed to set up pci memory space.\n");
9562                 goto out_disable_pci_dev;
9563         }
9564
9565         /* Set up phase-1 common device driver resources */
9566         error = lpfc_setup_driver_resource_phase1(phba);
9567         if (error) {
9568                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9569                                 "1403 Failed to set up driver resource.\n");
9570                 goto out_unset_pci_mem_s3;
9571         }
9572
9573         /* Set up SLI-3 specific device driver resources */
9574         error = lpfc_sli_driver_resource_setup(phba);
9575         if (error) {
9576                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9577                                 "1404 Failed to set up driver resource.\n");
9578                 goto out_unset_pci_mem_s3;
9579         }
9580
9581         /* Initialize and populate the iocb list per host */
9582         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9583         if (error) {
9584                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9585                                 "1405 Failed to initialize iocb list.\n");
9586                 goto out_unset_driver_resource_s3;
9587         }
9588
9589         /* Set up common device driver resources */
9590         error = lpfc_setup_driver_resource_phase2(phba);
9591         if (error) {
9592                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9593                                 "1406 Failed to set up driver resource.\n");
9594                 goto out_free_iocb_list;
9595         }
9596
9597         /* Get the default values for Model Name and Description */
9598         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9599
9600         /* Create SCSI host to the physical port */
9601         error = lpfc_create_shost(phba);
9602         if (error) {
9603                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9604                                 "1407 Failed to create scsi host.\n");
9605                 goto out_unset_driver_resource;
9606         }
9607
9608         /* Configure sysfs attributes */
9609         vport = phba->pport;
9610         error = lpfc_alloc_sysfs_attr(vport);
9611         if (error) {
9612                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9613                                 "1476 Failed to allocate sysfs attr\n");
9614                 goto out_destroy_shost;
9615         }
9616
9617         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9618         /* Now, trying to enable interrupt and bring up the device */
9619         cfg_mode = phba->cfg_use_msi;
9620         while (true) {
9621                 /* Put device to a known state before enabling interrupt */
9622                 lpfc_stop_port(phba);
9623                 /* Configure and enable interrupt */
9624                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9625                 if (intr_mode == LPFC_INTR_ERROR) {
9626                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9627                                         "0431 Failed to enable interrupt.\n");
9628                         error = -ENODEV;
9629                         goto out_free_sysfs_attr;
9630                 }
9631                 /* SLI-3 HBA setup */
9632                 if (lpfc_sli_hba_setup(phba)) {
9633                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9634                                         "1477 Failed to set up hba\n");
9635                         error = -ENODEV;
9636                         goto out_remove_device;
9637                 }
9638
9639                 /* Wait 50ms for the interrupts of previous mailbox commands */
9640                 msleep(50);
9641                 /* Check active interrupts on message signaled interrupts */
9642                 if (intr_mode == 0 ||
9643                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9644                         /* Log the current active interrupt mode */
9645                         phba->intr_mode = intr_mode;
9646                         lpfc_log_intr_mode(phba, intr_mode);
9647                         break;
9648                 } else {
9649                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9650                                         "0447 Configure interrupt mode (%d) "
9651                                         "failed active interrupt test.\n",
9652                                         intr_mode);
9653                         /* Disable the current interrupt mode */
9654                         lpfc_sli_disable_intr(phba);
9655                         /* Try next level of interrupt mode */
9656                         cfg_mode = --intr_mode;
9657                 }
9658         }
9659
9660         /* Perform post initialization setup */
9661         lpfc_post_init_setup(phba);
9662
9663         /* Check if there are static vports to be created. */
9664         lpfc_create_static_vport(phba);
9665
9666         return 0;
9667
9668 out_remove_device:
9669         lpfc_unset_hba(phba);
9670 out_free_sysfs_attr:
9671         lpfc_free_sysfs_attr(vport);
9672 out_destroy_shost:
9673         lpfc_destroy_shost(phba);
9674 out_unset_driver_resource:
9675         lpfc_unset_driver_resource_phase2(phba);
9676 out_free_iocb_list:
9677         lpfc_free_iocb_list(phba);
9678 out_unset_driver_resource_s3:
9679         lpfc_sli_driver_resource_unset(phba);
9680 out_unset_pci_mem_s3:
9681         lpfc_sli_pci_mem_unset(phba);
9682 out_disable_pci_dev:
9683         lpfc_disable_pci_dev(phba);
9684         if (shost)
9685                 scsi_host_put(shost);
9686 out_free_phba:
9687         lpfc_hba_free(phba);
9688         return error;
9689 }
9690
9691 /**
9692  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9693  * @pdev: pointer to PCI device
9694  *
9695  * This routine is to be called to disattach a device with SLI-3 interface
9696  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9697  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9698  * device to be removed from the PCI subsystem properly.
9699  **/
9700 static void
9701 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9702 {
9703         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
9704         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9705         struct lpfc_vport **vports;
9706         struct lpfc_hba   *phba = vport->phba;
9707         int i;
9708         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9709
9710         spin_lock_irq(&phba->hbalock);
9711         vport->load_flag |= FC_UNLOADING;
9712         spin_unlock_irq(&phba->hbalock);
9713
9714         lpfc_free_sysfs_attr(vport);
9715
9716         /* Release all the vports against this physical port */
9717         vports = lpfc_create_vport_work_array(phba);
9718         if (vports != NULL)
9719                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9720                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9721                                 continue;
9722                         fc_vport_terminate(vports[i]->fc_vport);
9723                 }
9724         lpfc_destroy_vport_work_array(phba, vports);
9725
9726         /* Remove FC host and then SCSI host with the physical port */
9727         fc_remove_host(shost);
9728         scsi_remove_host(shost);
9729         lpfc_cleanup(vport);
9730
9731         /*
9732          * Bring down the SLI Layer. This step disable all interrupts,
9733          * clears the rings, discards all mailbox commands, and resets
9734          * the HBA.
9735          */
9736
9737         /* HBA interrupt will be disabled after this call */
9738         lpfc_sli_hba_down(phba);
9739         /* Stop kthread signal shall trigger work_done one more time */
9740         kthread_stop(phba->worker_thread);
9741         /* Final cleanup of txcmplq and reset the HBA */
9742         lpfc_sli_brdrestart(phba);
9743
9744         kfree(phba->vpi_bmask);
9745         kfree(phba->vpi_ids);
9746
9747         lpfc_stop_hba_timers(phba);
9748         spin_lock_irq(&phba->hbalock);
9749         list_del_init(&vport->listentry);
9750         spin_unlock_irq(&phba->hbalock);
9751
9752         lpfc_debugfs_terminate(vport);
9753
9754         /* Disable SR-IOV if enabled */
9755         if (phba->cfg_sriov_nr_virtfn)
9756                 pci_disable_sriov(pdev);
9757
9758         /* Disable interrupt */
9759         lpfc_sli_disable_intr(phba);
9760
9761         scsi_host_put(shost);
9762
9763         /*
9764          * Call scsi_free before mem_free since scsi bufs are released to their
9765          * corresponding pools here.
9766          */
9767         lpfc_scsi_free(phba);
9768         lpfc_mem_free_all(phba);
9769
9770         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9771                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9772
9773         /* Free resources associated with SLI2 interface */
9774         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9775                           phba->slim2p.virt, phba->slim2p.phys);
9776
9777         /* unmap adapter SLIM and Control Registers */
9778         iounmap(phba->ctrl_regs_memmap_p);
9779         iounmap(phba->slim_memmap_p);
9780
9781         lpfc_hba_free(phba);
9782
9783         pci_release_selected_regions(pdev, bars);
9784         pci_disable_device(pdev);
9785 }
9786
9787 /**
9788  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9789  * @pdev: pointer to PCI device
9790  * @msg: power management message
9791  *
9792  * This routine is to be called from the kernel's PCI subsystem to support
9793  * system Power Management (PM) to device with SLI-3 interface spec. When
9794  * PM invokes this method, it quiesces the device by stopping the driver's
9795  * worker thread for the device, turning off device's interrupt and DMA,
9796  * and bring the device offline. Note that as the driver implements the
9797  * minimum PM requirements to a power-aware driver's PM support for the
9798  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9799  * to the suspend() method call will be treated as SUSPEND and the driver will
9800  * fully reinitialize its device during resume() method call, the driver will
9801  * set device to PCI_D3hot state in PCI config space instead of setting it
9802  * according to the @msg provided by the PM.
9803  *
9804  * Return code
9805  *      0 - driver suspended the device
9806  *      Error otherwise
9807  **/
9808 static int
9809 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9810 {
9811         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9812         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9813
9814         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9815                         "0473 PCI device Power Management suspend.\n");
9816
9817         /* Bring down the device */
9818         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9819         lpfc_offline(phba);
9820         kthread_stop(phba->worker_thread);
9821
9822         /* Disable interrupt from device */
9823         lpfc_sli_disable_intr(phba);
9824
9825         /* Save device state to PCI config space */
9826         pci_save_state(pdev);
9827         pci_set_power_state(pdev, PCI_D3hot);
9828
9829         return 0;
9830 }
9831
9832 /**
9833  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9834  * @pdev: pointer to PCI device
9835  *
9836  * This routine is to be called from the kernel's PCI subsystem to support
9837  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9838  * invokes this method, it restores the device's PCI config space state and
9839  * fully reinitializes the device and brings it online. Note that as the
9840  * driver implements the minimum PM requirements to a power-aware driver's
9841  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9842  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9843  * driver will fully reinitialize its device during resume() method call,
9844  * the device will be set to PCI_D0 directly in PCI config space before
9845  * restoring the state.
9846  *
9847  * Return code
9848  *      0 - driver suspended the device
9849  *      Error otherwise
9850  **/
9851 static int
9852 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9853 {
9854         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9855         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9856         uint32_t intr_mode;
9857         int error;
9858
9859         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9860                         "0452 PCI device Power Management resume.\n");
9861
9862         /* Restore device state from PCI config space */
9863         pci_set_power_state(pdev, PCI_D0);
9864         pci_restore_state(pdev);
9865
9866         /*
9867          * As the new kernel behavior of pci_restore_state() API call clears
9868          * device saved_state flag, need to save the restored state again.
9869          */
9870         pci_save_state(pdev);
9871
9872         if (pdev->is_busmaster)
9873                 pci_set_master(pdev);
9874
9875         /* Startup the kernel thread for this host adapter. */
9876         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9877                                         "lpfc_worker_%d", phba->brd_no);
9878         if (IS_ERR(phba->worker_thread)) {
9879                 error = PTR_ERR(phba->worker_thread);
9880                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9881                                 "0434 PM resume failed to start worker "
9882                                 "thread: error=x%x.\n", error);
9883                 return error;
9884         }
9885
9886         /* Configure and enable interrupt */
9887         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9888         if (intr_mode == LPFC_INTR_ERROR) {
9889                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9890                                 "0430 PM resume Failed to enable interrupt\n");
9891                 return -EIO;
9892         } else
9893                 phba->intr_mode = intr_mode;
9894
9895         /* Restart HBA and bring it online */
9896         lpfc_sli_brdrestart(phba);
9897         lpfc_online(phba);
9898
9899         /* Log the current active interrupt mode */
9900         lpfc_log_intr_mode(phba, phba->intr_mode);
9901
9902         return 0;
9903 }
9904
9905 /**
9906  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9907  * @phba: pointer to lpfc hba data structure.
9908  *
9909  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9910  * aborts all the outstanding SCSI I/Os to the pci device.
9911  **/
9912 static void
9913 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9914 {
9915         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9916                         "2723 PCI channel I/O abort preparing for recovery\n");
9917
9918         /*
9919          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9920          * and let the SCSI mid-layer to retry them to recover.
9921          */
9922         lpfc_sli_abort_fcp_rings(phba);
9923 }
9924
9925 /**
9926  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9927  * @phba: pointer to lpfc hba data structure.
9928  *
9929  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9930  * disables the device interrupt and pci device, and aborts the internal FCP
9931  * pending I/Os.
9932  **/
9933 static void
9934 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9935 {
9936         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9937                         "2710 PCI channel disable preparing for reset\n");
9938
9939         /* Block any management I/Os to the device */
9940         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9941
9942         /* Block all SCSI devices' I/Os on the host */
9943         lpfc_scsi_dev_block(phba);
9944
9945         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9946         lpfc_sli_flush_fcp_rings(phba);
9947
9948         /* stop all timers */
9949         lpfc_stop_hba_timers(phba);
9950
9951         /* Disable interrupt and pci device */
9952         lpfc_sli_disable_intr(phba);
9953         pci_disable_device(phba->pcidev);
9954 }
9955
9956 /**
9957  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9958  * @phba: pointer to lpfc hba data structure.
9959  *
9960  * This routine is called to prepare the SLI3 device for PCI slot permanently
9961  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9962  * pending I/Os.
9963  **/
9964 static void
9965 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9966 {
9967         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9968                         "2711 PCI channel permanent disable for failure\n");
9969         /* Block all SCSI devices' I/Os on the host */
9970         lpfc_scsi_dev_block(phba);
9971
9972         /* stop all timers */
9973         lpfc_stop_hba_timers(phba);
9974
9975         /* Clean up all driver's outstanding SCSI I/Os */
9976         lpfc_sli_flush_fcp_rings(phba);
9977 }
9978
9979 /**
9980  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9981  * @pdev: pointer to PCI device.
9982  * @state: the current PCI connection state.
9983  *
9984  * This routine is called from the PCI subsystem for I/O error handling to
9985  * device with SLI-3 interface spec. This function is called by the PCI
9986  * subsystem after a PCI bus error affecting this device has been detected.
9987  * When this function is invoked, it will need to stop all the I/Os and
9988  * interrupt(s) to the device. Once that is done, it will return
9989  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9990  * as desired.
9991  *
9992  * Return codes
9993  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9994  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9995  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9996  **/
9997 static pci_ers_result_t
9998 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9999 {
10000         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10001         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10002
10003         switch (state) {
10004         case pci_channel_io_normal:
10005                 /* Non-fatal error, prepare for recovery */
10006                 lpfc_sli_prep_dev_for_recover(phba);
10007                 return PCI_ERS_RESULT_CAN_RECOVER;
10008         case pci_channel_io_frozen:
10009                 /* Fatal error, prepare for slot reset */
10010                 lpfc_sli_prep_dev_for_reset(phba);
10011                 return PCI_ERS_RESULT_NEED_RESET;
10012         case pci_channel_io_perm_failure:
10013                 /* Permanent failure, prepare for device down */
10014                 lpfc_sli_prep_dev_for_perm_failure(phba);
10015                 return PCI_ERS_RESULT_DISCONNECT;
10016         default:
10017                 /* Unknown state, prepare and request slot reset */
10018                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10019                                 "0472 Unknown PCI error state: x%x\n", state);
10020                 lpfc_sli_prep_dev_for_reset(phba);
10021                 return PCI_ERS_RESULT_NEED_RESET;
10022         }
10023 }
10024
10025 /**
10026  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10027  * @pdev: pointer to PCI device.
10028  *
10029  * This routine is called from the PCI subsystem for error handling to
10030  * device with SLI-3 interface spec. This is called after PCI bus has been
10031  * reset to restart the PCI card from scratch, as if from a cold-boot.
10032  * During the PCI subsystem error recovery, after driver returns
10033  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10034  * recovery and then call this routine before calling the .resume method
10035  * to recover the device. This function will initialize the HBA device,
10036  * enable the interrupt, but it will just put the HBA to offline state
10037  * without passing any I/O traffic.
10038  *
10039  * Return codes
10040  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10041  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10042  */
10043 static pci_ers_result_t
10044 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10045 {
10046         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10047         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10048         struct lpfc_sli *psli = &phba->sli;
10049         uint32_t intr_mode;
10050
10051         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10052         if (pci_enable_device_mem(pdev)) {
10053                 printk(KERN_ERR "lpfc: Cannot re-enable "
10054                         "PCI device after reset.\n");
10055                 return PCI_ERS_RESULT_DISCONNECT;
10056         }
10057
10058         pci_restore_state(pdev);
10059
10060         /*
10061          * As the new kernel behavior of pci_restore_state() API call clears
10062          * device saved_state flag, need to save the restored state again.
10063          */
10064         pci_save_state(pdev);
10065
10066         if (pdev->is_busmaster)
10067                 pci_set_master(pdev);
10068
10069         spin_lock_irq(&phba->hbalock);
10070         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10071         spin_unlock_irq(&phba->hbalock);
10072
10073         /* Configure and enable interrupt */
10074         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10075         if (intr_mode == LPFC_INTR_ERROR) {
10076                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10077                                 "0427 Cannot re-enable interrupt after "
10078                                 "slot reset.\n");
10079                 return PCI_ERS_RESULT_DISCONNECT;
10080         } else
10081                 phba->intr_mode = intr_mode;
10082
10083         /* Take device offline, it will perform cleanup */
10084         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10085         lpfc_offline(phba);
10086         lpfc_sli_brdrestart(phba);
10087
10088         /* Log the current active interrupt mode */
10089         lpfc_log_intr_mode(phba, phba->intr_mode);
10090
10091         return PCI_ERS_RESULT_RECOVERED;
10092 }
10093
10094 /**
10095  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10096  * @pdev: pointer to PCI device
10097  *
10098  * This routine is called from the PCI subsystem for error handling to device
10099  * with SLI-3 interface spec. It is called when kernel error recovery tells
10100  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10101  * error recovery. After this call, traffic can start to flow from this device
10102  * again.
10103  */
10104 static void
10105 lpfc_io_resume_s3(struct pci_dev *pdev)
10106 {
10107         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10108         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10109
10110         /* Bring device online, it will be no-op for non-fatal error resume */
10111         lpfc_online(phba);
10112
10113         /* Clean up Advanced Error Reporting (AER) if needed */
10114         if (phba->hba_flag & HBA_AER_ENABLED)
10115                 pci_cleanup_aer_uncorrect_error_status(pdev);
10116 }
10117
10118 /**
10119  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10120  * @phba: pointer to lpfc hba data structure.
10121  *
10122  * returns the number of ELS/CT IOCBs to reserve
10123  **/
10124 int
10125 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10126 {
10127         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10128
10129         if (phba->sli_rev == LPFC_SLI_REV4) {
10130                 if (max_xri <= 100)
10131                         return 10;
10132                 else if (max_xri <= 256)
10133                         return 25;
10134                 else if (max_xri <= 512)
10135                         return 50;
10136                 else if (max_xri <= 1024)
10137                         return 100;
10138                 else if (max_xri <= 1536)
10139                         return 150;
10140                 else if (max_xri <= 2048)
10141                         return 200;
10142                 else
10143                         return 250;
10144         } else
10145                 return 0;
10146 }
10147
10148 /**
10149  * lpfc_write_firmware - attempt to write a firmware image to the port
10150  * @fw: pointer to firmware image returned from request_firmware.
10151  * @phba: pointer to lpfc hba data structure.
10152  *
10153  **/
10154 static void
10155 lpfc_write_firmware(const struct firmware *fw, void *context)
10156 {
10157         struct lpfc_hba *phba = (struct lpfc_hba *)context;
10158         char fwrev[FW_REV_STR_SIZE];
10159         struct lpfc_grp_hdr *image;
10160         struct list_head dma_buffer_list;
10161         int i, rc = 0;
10162         struct lpfc_dmabuf *dmabuf, *next;
10163         uint32_t offset = 0, temp_offset = 0;
10164
10165         /* It can be null in no-wait mode, sanity check */
10166         if (!fw) {
10167                 rc = -ENXIO;
10168                 goto out;
10169         }
10170         image = (struct lpfc_grp_hdr *)fw->data;
10171
10172         INIT_LIST_HEAD(&dma_buffer_list);
10173         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10174             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10175              LPFC_FILE_TYPE_GROUP) ||
10176             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10177             (be32_to_cpu(image->size) != fw->size)) {
10178                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10179                                 "3022 Invalid FW image found. "
10180                                 "Magic:%x Type:%x ID:%x\n",
10181                                 be32_to_cpu(image->magic_number),
10182                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
10183                                 bf_get_be32(lpfc_grp_hdr_id, image));
10184                 rc = -EINVAL;
10185                 goto release_out;
10186         }
10187         lpfc_decode_firmware_rev(phba, fwrev, 1);
10188         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10189                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10190                                 "3023 Updating Firmware, Current Version:%s "
10191                                 "New Version:%s\n",
10192                                 fwrev, image->revision);
10193                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10194                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10195                                          GFP_KERNEL);
10196                         if (!dmabuf) {
10197                                 rc = -ENOMEM;
10198                                 goto release_out;
10199                         }
10200                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10201                                                           SLI4_PAGE_SIZE,
10202                                                           &dmabuf->phys,
10203                                                           GFP_KERNEL);
10204                         if (!dmabuf->virt) {
10205                                 kfree(dmabuf);
10206                                 rc = -ENOMEM;
10207                                 goto release_out;
10208                         }
10209                         list_add_tail(&dmabuf->list, &dma_buffer_list);
10210                 }
10211                 while (offset < fw->size) {
10212                         temp_offset = offset;
10213                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10214                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10215                                         memcpy(dmabuf->virt,
10216                                                fw->data + temp_offset,
10217                                                fw->size - temp_offset);
10218                                         temp_offset = fw->size;
10219                                         break;
10220                                 }
10221                                 memcpy(dmabuf->virt, fw->data + temp_offset,
10222                                        SLI4_PAGE_SIZE);
10223                                 temp_offset += SLI4_PAGE_SIZE;
10224                         }
10225                         rc = lpfc_wr_object(phba, &dma_buffer_list,
10226                                     (fw->size - offset), &offset);
10227                         if (rc)
10228                                 goto release_out;
10229                 }
10230                 rc = offset;
10231         }
10232
10233 release_out:
10234         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10235                 list_del(&dmabuf->list);
10236                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10237                                   dmabuf->virt, dmabuf->phys);
10238                 kfree(dmabuf);
10239         }
10240         release_firmware(fw);
10241 out:
10242         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10243                         "3024 Firmware update done: %d.\n", rc);
10244         return;
10245 }
10246
10247 /**
10248  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10249  * @phba: pointer to lpfc hba data structure.
10250  *
10251  * This routine is called to perform Linux generic firmware upgrade on device
10252  * that supports such feature.
10253  **/
10254 int
10255 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10256 {
10257         uint8_t file_name[ELX_MODEL_NAME_SIZE];
10258         int ret;
10259         const struct firmware *fw;
10260
10261         /* Only supported on SLI4 interface type 2 for now */
10262         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10263             LPFC_SLI_INTF_IF_TYPE_2)
10264                 return -EPERM;
10265
10266         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10267
10268         if (fw_upgrade == INT_FW_UPGRADE) {
10269                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10270                                         file_name, &phba->pcidev->dev,
10271                                         GFP_KERNEL, (void *)phba,
10272                                         lpfc_write_firmware);
10273         } else if (fw_upgrade == RUN_FW_UPGRADE) {
10274                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10275                 if (!ret)
10276                         lpfc_write_firmware(fw, (void *)phba);
10277         } else {
10278                 ret = -EINVAL;
10279         }
10280
10281         return ret;
10282 }
10283
10284 /**
10285  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10286  * @pdev: pointer to PCI device
10287  * @pid: pointer to PCI device identifier
10288  *
10289  * This routine is called from the kernel's PCI subsystem to device with
10290  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10291  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10292  * information of the device and driver to see if the driver state that it
10293  * can support this kind of device. If the match is successful, the driver
10294  * core invokes this routine. If this routine determines it can claim the HBA,
10295  * it does all the initialization that it needs to do to handle the HBA
10296  * properly.
10297  *
10298  * Return code
10299  *      0 - driver can claim the device
10300  *      negative value - driver can not claim the device
10301  **/
10302 static int
10303 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10304 {
10305         struct lpfc_hba   *phba;
10306         struct lpfc_vport *vport = NULL;
10307         struct Scsi_Host  *shost = NULL;
10308         int error;
10309         uint32_t cfg_mode, intr_mode;
10310         int adjusted_fcp_io_channel;
10311
10312         /* Allocate memory for HBA structure */
10313         phba = lpfc_hba_alloc(pdev);
10314         if (!phba)
10315                 return -ENOMEM;
10316
10317         /* Perform generic PCI device enabling operation */
10318         error = lpfc_enable_pci_dev(phba);
10319         if (error)
10320                 goto out_free_phba;
10321
10322         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10323         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10324         if (error)
10325                 goto out_disable_pci_dev;
10326
10327         /* Set up SLI-4 specific device PCI memory space */
10328         error = lpfc_sli4_pci_mem_setup(phba);
10329         if (error) {
10330                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10331                                 "1410 Failed to set up pci memory space.\n");
10332                 goto out_disable_pci_dev;
10333         }
10334
10335         /* Set up phase-1 common device driver resources */
10336         error = lpfc_setup_driver_resource_phase1(phba);
10337         if (error) {
10338                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10339                                 "1411 Failed to set up driver resource.\n");
10340                 goto out_unset_pci_mem_s4;
10341         }
10342
10343         /* Set up SLI-4 Specific device driver resources */
10344         error = lpfc_sli4_driver_resource_setup(phba);
10345         if (error) {
10346                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10347                                 "1412 Failed to set up driver resource.\n");
10348                 goto out_unset_pci_mem_s4;
10349         }
10350
10351         /* Initialize and populate the iocb list per host */
10352
10353         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10354                         "2821 initialize iocb list %d.\n",
10355                         phba->cfg_iocb_cnt*1024);
10356         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10357
10358         if (error) {
10359                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10360                                 "1413 Failed to initialize iocb list.\n");
10361                 goto out_unset_driver_resource_s4;
10362         }
10363
10364         INIT_LIST_HEAD(&phba->active_rrq_list);
10365         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10366
10367         /* Set up common device driver resources */
10368         error = lpfc_setup_driver_resource_phase2(phba);
10369         if (error) {
10370                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10371                                 "1414 Failed to set up driver resource.\n");
10372                 goto out_free_iocb_list;
10373         }
10374
10375         /* Get the default values for Model Name and Description */
10376         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10377
10378         /* Create SCSI host to the physical port */
10379         error = lpfc_create_shost(phba);
10380         if (error) {
10381                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10382                                 "1415 Failed to create scsi host.\n");
10383                 goto out_unset_driver_resource;
10384         }
10385
10386         /* Configure sysfs attributes */
10387         vport = phba->pport;
10388         error = lpfc_alloc_sysfs_attr(vport);
10389         if (error) {
10390                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10391                                 "1416 Failed to allocate sysfs attr\n");
10392                 goto out_destroy_shost;
10393         }
10394
10395         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10396         /* Now, trying to enable interrupt and bring up the device */
10397         cfg_mode = phba->cfg_use_msi;
10398
10399         /* Put device to a known state before enabling interrupt */
10400         lpfc_stop_port(phba);
10401         /* Configure and enable interrupt */
10402         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10403         if (intr_mode == LPFC_INTR_ERROR) {
10404                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10405                                 "0426 Failed to enable interrupt.\n");
10406                 error = -ENODEV;
10407                 goto out_free_sysfs_attr;
10408         }
10409         /* Default to single EQ for non-MSI-X */
10410         if (phba->intr_type != MSIX)
10411                 adjusted_fcp_io_channel = 1;
10412         else
10413                 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10414         phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10415         /* Set up SLI-4 HBA */
10416         if (lpfc_sli4_hba_setup(phba)) {
10417                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10418                                 "1421 Failed to set up hba\n");
10419                 error = -ENODEV;
10420                 goto out_disable_intr;
10421         }
10422
10423         /* Log the current active interrupt mode */
10424         phba->intr_mode = intr_mode;
10425         lpfc_log_intr_mode(phba, intr_mode);
10426
10427         /* Perform post initialization setup */
10428         lpfc_post_init_setup(phba);
10429
10430         /* check for firmware upgrade or downgrade */
10431         if (phba->cfg_request_firmware_upgrade)
10432                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10433
10434         /* Check if there are static vports to be created. */
10435         lpfc_create_static_vport(phba);
10436         return 0;
10437
10438 out_disable_intr:
10439         lpfc_sli4_disable_intr(phba);
10440 out_free_sysfs_attr:
10441         lpfc_free_sysfs_attr(vport);
10442 out_destroy_shost:
10443         lpfc_destroy_shost(phba);
10444 out_unset_driver_resource:
10445         lpfc_unset_driver_resource_phase2(phba);
10446 out_free_iocb_list:
10447         lpfc_free_iocb_list(phba);
10448 out_unset_driver_resource_s4:
10449         lpfc_sli4_driver_resource_unset(phba);
10450 out_unset_pci_mem_s4:
10451         lpfc_sli4_pci_mem_unset(phba);
10452 out_disable_pci_dev:
10453         lpfc_disable_pci_dev(phba);
10454         if (shost)
10455                 scsi_host_put(shost);
10456 out_free_phba:
10457         lpfc_hba_free(phba);
10458         return error;
10459 }
10460
10461 /**
10462  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10463  * @pdev: pointer to PCI device
10464  *
10465  * This routine is called from the kernel's PCI subsystem to device with
10466  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10467  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10468  * device to be removed from the PCI subsystem properly.
10469  **/
10470 static void
10471 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10472 {
10473         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10474         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10475         struct lpfc_vport **vports;
10476         struct lpfc_hba *phba = vport->phba;
10477         int i;
10478
10479         /* Mark the device unloading flag */
10480         spin_lock_irq(&phba->hbalock);
10481         vport->load_flag |= FC_UNLOADING;
10482         spin_unlock_irq(&phba->hbalock);
10483
10484         /* Free the HBA sysfs attributes */
10485         lpfc_free_sysfs_attr(vport);
10486
10487         /* Release all the vports against this physical port */
10488         vports = lpfc_create_vport_work_array(phba);
10489         if (vports != NULL)
10490                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10491                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10492                                 continue;
10493                         fc_vport_terminate(vports[i]->fc_vport);
10494                 }
10495         lpfc_destroy_vport_work_array(phba, vports);
10496
10497         /* Remove FC host and then SCSI host with the physical port */
10498         fc_remove_host(shost);
10499         scsi_remove_host(shost);
10500
10501         /* Perform cleanup on the physical port */
10502         lpfc_cleanup(vport);
10503
10504         /*
10505          * Bring down the SLI Layer. This step disables all interrupts,
10506          * clears the rings, discards all mailbox commands, and resets
10507          * the HBA FCoE function.
10508          */
10509         lpfc_debugfs_terminate(vport);
10510         lpfc_sli4_hba_unset(phba);
10511
10512         spin_lock_irq(&phba->hbalock);
10513         list_del_init(&vport->listentry);
10514         spin_unlock_irq(&phba->hbalock);
10515
10516         /* Perform scsi free before driver resource_unset since scsi
10517          * buffers are released to their corresponding pools here.
10518          */
10519         lpfc_scsi_free(phba);
10520
10521         lpfc_sli4_driver_resource_unset(phba);
10522
10523         /* Unmap adapter Control and Doorbell registers */
10524         lpfc_sli4_pci_mem_unset(phba);
10525
10526         /* Release PCI resources and disable device's PCI function */
10527         scsi_host_put(shost);
10528         lpfc_disable_pci_dev(phba);
10529
10530         /* Finally, free the driver's device data structure */
10531         lpfc_hba_free(phba);
10532
10533         return;
10534 }
10535
10536 /**
10537  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10538  * @pdev: pointer to PCI device
10539  * @msg: power management message
10540  *
10541  * This routine is called from the kernel's PCI subsystem to support system
10542  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10543  * this method, it quiesces the device by stopping the driver's worker
10544  * thread for the device, turning off device's interrupt and DMA, and bring
10545  * the device offline. Note that as the driver implements the minimum PM
10546  * requirements to a power-aware driver's PM support for suspend/resume -- all
10547  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10548  * method call will be treated as SUSPEND and the driver will fully
10549  * reinitialize its device during resume() method call, the driver will set
10550  * device to PCI_D3hot state in PCI config space instead of setting it
10551  * according to the @msg provided by the PM.
10552  *
10553  * Return code
10554  *      0 - driver suspended the device
10555  *      Error otherwise
10556  **/
10557 static int
10558 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10559 {
10560         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10561         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10562
10563         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10564                         "2843 PCI device Power Management suspend.\n");
10565
10566         /* Bring down the device */
10567         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10568         lpfc_offline(phba);
10569         kthread_stop(phba->worker_thread);
10570
10571         /* Disable interrupt from device */
10572         lpfc_sli4_disable_intr(phba);
10573         lpfc_sli4_queue_destroy(phba);
10574
10575         /* Save device state to PCI config space */
10576         pci_save_state(pdev);
10577         pci_set_power_state(pdev, PCI_D3hot);
10578
10579         return 0;
10580 }
10581
10582 /**
10583  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10584  * @pdev: pointer to PCI device
10585  *
10586  * This routine is called from the kernel's PCI subsystem to support system
10587  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10588  * this method, it restores the device's PCI config space state and fully
10589  * reinitializes the device and brings it online. Note that as the driver
10590  * implements the minimum PM requirements to a power-aware driver's PM for
10591  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10592  * to the suspend() method call will be treated as SUSPEND and the driver
10593  * will fully reinitialize its device during resume() method call, the device
10594  * will be set to PCI_D0 directly in PCI config space before restoring the
10595  * state.
10596  *
10597  * Return code
10598  *      0 - driver suspended the device
10599  *      Error otherwise
10600  **/
10601 static int
10602 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10603 {
10604         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10605         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10606         uint32_t intr_mode;
10607         int error;
10608
10609         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10610                         "0292 PCI device Power Management resume.\n");
10611
10612         /* Restore device state from PCI config space */
10613         pci_set_power_state(pdev, PCI_D0);
10614         pci_restore_state(pdev);
10615
10616         /*
10617          * As the new kernel behavior of pci_restore_state() API call clears
10618          * device saved_state flag, need to save the restored state again.
10619          */
10620         pci_save_state(pdev);
10621
10622         if (pdev->is_busmaster)
10623                 pci_set_master(pdev);
10624
10625          /* Startup the kernel thread for this host adapter. */
10626         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10627                                         "lpfc_worker_%d", phba->brd_no);
10628         if (IS_ERR(phba->worker_thread)) {
10629                 error = PTR_ERR(phba->worker_thread);
10630                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10631                                 "0293 PM resume failed to start worker "
10632                                 "thread: error=x%x.\n", error);
10633                 return error;
10634         }
10635
10636         /* Configure and enable interrupt */
10637         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10638         if (intr_mode == LPFC_INTR_ERROR) {
10639                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10640                                 "0294 PM resume Failed to enable interrupt\n");
10641                 return -EIO;
10642         } else
10643                 phba->intr_mode = intr_mode;
10644
10645         /* Restart HBA and bring it online */
10646         lpfc_sli_brdrestart(phba);
10647         lpfc_online(phba);
10648
10649         /* Log the current active interrupt mode */
10650         lpfc_log_intr_mode(phba, phba->intr_mode);
10651
10652         return 0;
10653 }
10654
10655 /**
10656  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10657  * @phba: pointer to lpfc hba data structure.
10658  *
10659  * This routine is called to prepare the SLI4 device for PCI slot recover. It
10660  * aborts all the outstanding SCSI I/Os to the pci device.
10661  **/
10662 static void
10663 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10664 {
10665         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10666                         "2828 PCI channel I/O abort preparing for recovery\n");
10667         /*
10668          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10669          * and let the SCSI mid-layer to retry them to recover.
10670          */
10671         lpfc_sli_abort_fcp_rings(phba);
10672 }
10673
10674 /**
10675  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10676  * @phba: pointer to lpfc hba data structure.
10677  *
10678  * This routine is called to prepare the SLI4 device for PCI slot reset. It
10679  * disables the device interrupt and pci device, and aborts the internal FCP
10680  * pending I/Os.
10681  **/
10682 static void
10683 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10684 {
10685         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10686                         "2826 PCI channel disable preparing for reset\n");
10687
10688         /* Block any management I/Os to the device */
10689         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10690
10691         /* Block all SCSI devices' I/Os on the host */
10692         lpfc_scsi_dev_block(phba);
10693
10694         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10695         lpfc_sli_flush_fcp_rings(phba);
10696
10697         /* stop all timers */
10698         lpfc_stop_hba_timers(phba);
10699
10700         /* Disable interrupt and pci device */
10701         lpfc_sli4_disable_intr(phba);
10702         lpfc_sli4_queue_destroy(phba);
10703         pci_disable_device(phba->pcidev);
10704 }
10705
10706 /**
10707  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10708  * @phba: pointer to lpfc hba data structure.
10709  *
10710  * This routine is called to prepare the SLI4 device for PCI slot permanently
10711  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10712  * pending I/Os.
10713  **/
10714 static void
10715 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10716 {
10717         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10718                         "2827 PCI channel permanent disable for failure\n");
10719
10720         /* Block all SCSI devices' I/Os on the host */
10721         lpfc_scsi_dev_block(phba);
10722
10723         /* stop all timers */
10724         lpfc_stop_hba_timers(phba);
10725
10726         /* Clean up all driver's outstanding SCSI I/Os */
10727         lpfc_sli_flush_fcp_rings(phba);
10728 }
10729
10730 /**
10731  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10732  * @pdev: pointer to PCI device.
10733  * @state: the current PCI connection state.
10734  *
10735  * This routine is called from the PCI subsystem for error handling to device
10736  * with SLI-4 interface spec. This function is called by the PCI subsystem
10737  * after a PCI bus error affecting this device has been detected. When this
10738  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10739  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10740  * for the PCI subsystem to perform proper recovery as desired.
10741  *
10742  * Return codes
10743  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10744  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10745  **/
10746 static pci_ers_result_t
10747 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10748 {
10749         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10750         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10751
10752         switch (state) {
10753         case pci_channel_io_normal:
10754                 /* Non-fatal error, prepare for recovery */
10755                 lpfc_sli4_prep_dev_for_recover(phba);
10756                 return PCI_ERS_RESULT_CAN_RECOVER;
10757         case pci_channel_io_frozen:
10758                 /* Fatal error, prepare for slot reset */
10759                 lpfc_sli4_prep_dev_for_reset(phba);
10760                 return PCI_ERS_RESULT_NEED_RESET;
10761         case pci_channel_io_perm_failure:
10762                 /* Permanent failure, prepare for device down */
10763                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10764                 return PCI_ERS_RESULT_DISCONNECT;
10765         default:
10766                 /* Unknown state, prepare and request slot reset */
10767                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10768                                 "2825 Unknown PCI error state: x%x\n", state);
10769                 lpfc_sli4_prep_dev_for_reset(phba);
10770                 return PCI_ERS_RESULT_NEED_RESET;
10771         }
10772 }
10773
10774 /**
10775  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10776  * @pdev: pointer to PCI device.
10777  *
10778  * This routine is called from the PCI subsystem for error handling to device
10779  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10780  * restart the PCI card from scratch, as if from a cold-boot. During the
10781  * PCI subsystem error recovery, after the driver returns
10782  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10783  * recovery and then call this routine before calling the .resume method to
10784  * recover the device. This function will initialize the HBA device, enable
10785  * the interrupt, but it will just put the HBA to offline state without
10786  * passing any I/O traffic.
10787  *
10788  * Return codes
10789  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10790  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10791  */
10792 static pci_ers_result_t
10793 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10794 {
10795         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10796         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10797         struct lpfc_sli *psli = &phba->sli;
10798         uint32_t intr_mode;
10799
10800         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10801         if (pci_enable_device_mem(pdev)) {
10802                 printk(KERN_ERR "lpfc: Cannot re-enable "
10803                         "PCI device after reset.\n");
10804                 return PCI_ERS_RESULT_DISCONNECT;
10805         }
10806
10807         pci_restore_state(pdev);
10808
10809         /*
10810          * As the new kernel behavior of pci_restore_state() API call clears
10811          * device saved_state flag, need to save the restored state again.
10812          */
10813         pci_save_state(pdev);
10814
10815         if (pdev->is_busmaster)
10816                 pci_set_master(pdev);
10817
10818         spin_lock_irq(&phba->hbalock);
10819         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10820         spin_unlock_irq(&phba->hbalock);
10821
10822         /* Configure and enable interrupt */
10823         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10824         if (intr_mode == LPFC_INTR_ERROR) {
10825                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10826                                 "2824 Cannot re-enable interrupt after "
10827                                 "slot reset.\n");
10828                 return PCI_ERS_RESULT_DISCONNECT;
10829         } else
10830                 phba->intr_mode = intr_mode;
10831
10832         /* Log the current active interrupt mode */
10833         lpfc_log_intr_mode(phba, phba->intr_mode);
10834
10835         return PCI_ERS_RESULT_RECOVERED;
10836 }
10837
10838 /**
10839  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10840  * @pdev: pointer to PCI device
10841  *
10842  * This routine is called from the PCI subsystem for error handling to device
10843  * with SLI-4 interface spec. It is called when kernel error recovery tells
10844  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10845  * error recovery. After this call, traffic can start to flow from this device
10846  * again.
10847  **/
10848 static void
10849 lpfc_io_resume_s4(struct pci_dev *pdev)
10850 {
10851         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10852         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10853
10854         /*
10855          * In case of slot reset, as function reset is performed through
10856          * mailbox command which needs DMA to be enabled, this operation
10857          * has to be moved to the io resume phase. Taking device offline
10858          * will perform the necessary cleanup.
10859          */
10860         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10861                 /* Perform device reset */
10862                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10863                 lpfc_offline(phba);
10864                 lpfc_sli_brdrestart(phba);
10865                 /* Bring the device back online */
10866                 lpfc_online(phba);
10867         }
10868
10869         /* Clean up Advanced Error Reporting (AER) if needed */
10870         if (phba->hba_flag & HBA_AER_ENABLED)
10871                 pci_cleanup_aer_uncorrect_error_status(pdev);
10872 }
10873
10874 /**
10875  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10876  * @pdev: pointer to PCI device
10877  * @pid: pointer to PCI device identifier
10878  *
10879  * This routine is to be registered to the kernel's PCI subsystem. When an
10880  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10881  * at PCI device-specific information of the device and driver to see if the
10882  * driver state that it can support this kind of device. If the match is
10883  * successful, the driver core invokes this routine. This routine dispatches
10884  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10885  * do all the initialization that it needs to do to handle the HBA device
10886  * properly.
10887  *
10888  * Return code
10889  *      0 - driver can claim the device
10890  *      negative value - driver can not claim the device
10891  **/
10892 static int
10893 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10894 {
10895         int rc;
10896         struct lpfc_sli_intf intf;
10897
10898         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10899                 return -ENODEV;
10900
10901         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10902             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10903                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10904         else
10905                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10906
10907         return rc;
10908 }
10909
10910 /**
10911  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10912  * @pdev: pointer to PCI device
10913  *
10914  * This routine is to be registered to the kernel's PCI subsystem. When an
10915  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10916  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10917  * remove routine, which will perform all the necessary cleanup for the
10918  * device to be removed from the PCI subsystem properly.
10919  **/
10920 static void
10921 lpfc_pci_remove_one(struct pci_dev *pdev)
10922 {
10923         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10924         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10925
10926         switch (phba->pci_dev_grp) {
10927         case LPFC_PCI_DEV_LP:
10928                 lpfc_pci_remove_one_s3(pdev);
10929                 break;
10930         case LPFC_PCI_DEV_OC:
10931                 lpfc_pci_remove_one_s4(pdev);
10932                 break;
10933         default:
10934                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10935                                 "1424 Invalid PCI device group: 0x%x\n",
10936                                 phba->pci_dev_grp);
10937                 break;
10938         }
10939         return;
10940 }
10941
10942 /**
10943  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10944  * @pdev: pointer to PCI device
10945  * @msg: power management message
10946  *
10947  * This routine is to be registered to the kernel's PCI subsystem to support
10948  * system Power Management (PM). When PM invokes this method, it dispatches
10949  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10950  * suspend the device.
10951  *
10952  * Return code
10953  *      0 - driver suspended the device
10954  *      Error otherwise
10955  **/
10956 static int
10957 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10958 {
10959         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10960         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10961         int rc = -ENODEV;
10962
10963         switch (phba->pci_dev_grp) {
10964         case LPFC_PCI_DEV_LP:
10965                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10966                 break;
10967         case LPFC_PCI_DEV_OC:
10968                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10969                 break;
10970         default:
10971                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10972                                 "1425 Invalid PCI device group: 0x%x\n",
10973                                 phba->pci_dev_grp);
10974                 break;
10975         }
10976         return rc;
10977 }
10978
10979 /**
10980  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10981  * @pdev: pointer to PCI device
10982  *
10983  * This routine is to be registered to the kernel's PCI subsystem to support
10984  * system Power Management (PM). When PM invokes this method, it dispatches
10985  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10986  * resume the device.
10987  *
10988  * Return code
10989  *      0 - driver suspended the device
10990  *      Error otherwise
10991  **/
10992 static int
10993 lpfc_pci_resume_one(struct pci_dev *pdev)
10994 {
10995         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10996         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10997         int rc = -ENODEV;
10998
10999         switch (phba->pci_dev_grp) {
11000         case LPFC_PCI_DEV_LP:
11001                 rc = lpfc_pci_resume_one_s3(pdev);
11002                 break;
11003         case LPFC_PCI_DEV_OC:
11004                 rc = lpfc_pci_resume_one_s4(pdev);
11005                 break;
11006         default:
11007                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11008                                 "1426 Invalid PCI device group: 0x%x\n",
11009                                 phba->pci_dev_grp);
11010                 break;
11011         }
11012         return rc;
11013 }
11014
11015 /**
11016  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11017  * @pdev: pointer to PCI device.
11018  * @state: the current PCI connection state.
11019  *
11020  * This routine is registered to the PCI subsystem for error handling. This
11021  * function is called by the PCI subsystem after a PCI bus error affecting
11022  * this device has been detected. When this routine is invoked, it dispatches
11023  * the action to the proper SLI-3 or SLI-4 device error detected handling
11024  * routine, which will perform the proper error detected operation.
11025  *
11026  * Return codes
11027  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11028  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11029  **/
11030 static pci_ers_result_t
11031 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11032 {
11033         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11034         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11035         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11036
11037         switch (phba->pci_dev_grp) {
11038         case LPFC_PCI_DEV_LP:
11039                 rc = lpfc_io_error_detected_s3(pdev, state);
11040                 break;
11041         case LPFC_PCI_DEV_OC:
11042                 rc = lpfc_io_error_detected_s4(pdev, state);
11043                 break;
11044         default:
11045                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11046                                 "1427 Invalid PCI device group: 0x%x\n",
11047                                 phba->pci_dev_grp);
11048                 break;
11049         }
11050         return rc;
11051 }
11052
11053 /**
11054  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11055  * @pdev: pointer to PCI device.
11056  *
11057  * This routine is registered to the PCI subsystem for error handling. This
11058  * function is called after PCI bus has been reset to restart the PCI card
11059  * from scratch, as if from a cold-boot. When this routine is invoked, it
11060  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11061  * routine, which will perform the proper device reset.
11062  *
11063  * Return codes
11064  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11065  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11066  **/
11067 static pci_ers_result_t
11068 lpfc_io_slot_reset(struct pci_dev *pdev)
11069 {
11070         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11071         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11072         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11073
11074         switch (phba->pci_dev_grp) {
11075         case LPFC_PCI_DEV_LP:
11076                 rc = lpfc_io_slot_reset_s3(pdev);
11077                 break;
11078         case LPFC_PCI_DEV_OC:
11079                 rc = lpfc_io_slot_reset_s4(pdev);
11080                 break;
11081         default:
11082                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11083                                 "1428 Invalid PCI device group: 0x%x\n",
11084                                 phba->pci_dev_grp);
11085                 break;
11086         }
11087         return rc;
11088 }
11089
11090 /**
11091  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11092  * @pdev: pointer to PCI device
11093  *
11094  * This routine is registered to the PCI subsystem for error handling. It
11095  * is called when kernel error recovery tells the lpfc driver that it is
11096  * OK to resume normal PCI operation after PCI bus error recovery. When
11097  * this routine is invoked, it dispatches the action to the proper SLI-3
11098  * or SLI-4 device io_resume routine, which will resume the device operation.
11099  **/
11100 static void
11101 lpfc_io_resume(struct pci_dev *pdev)
11102 {
11103         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11104         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11105
11106         switch (phba->pci_dev_grp) {
11107         case LPFC_PCI_DEV_LP:
11108                 lpfc_io_resume_s3(pdev);
11109                 break;
11110         case LPFC_PCI_DEV_OC:
11111                 lpfc_io_resume_s4(pdev);
11112                 break;
11113         default:
11114                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11115                                 "1429 Invalid PCI device group: 0x%x\n",
11116                                 phba->pci_dev_grp);
11117                 break;
11118         }
11119         return;
11120 }
11121
11122 /**
11123  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11124  * @phba: pointer to lpfc hba data structure.
11125  *
11126  * This routine checks to see if OAS is supported for this adapter. If
11127  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
11128  * the enable oas flag is cleared and the pool created for OAS device data
11129  * is destroyed.
11130  *
11131  **/
11132 void
11133 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11134 {
11135
11136         if (!phba->cfg_EnableXLane)
11137                 return;
11138
11139         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11140                 phba->cfg_fof = 1;
11141         } else {
11142                 phba->cfg_fof = 0;
11143                 if (phba->device_data_mem_pool)
11144                         mempool_destroy(phba->device_data_mem_pool);
11145                 phba->device_data_mem_pool = NULL;
11146         }
11147
11148         return;
11149 }
11150
11151 /**
11152  * lpfc_fof_queue_setup - Set up all the fof queues
11153  * @phba: pointer to lpfc hba data structure.
11154  *
11155  * This routine is invoked to set up all the fof queues for the FC HBA
11156  * operation.
11157  *
11158  * Return codes
11159  *      0 - successful
11160  *      -ENOMEM - No available memory
11161  **/
11162 int
11163 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11164 {
11165         struct lpfc_sli *psli = &phba->sli;
11166         int rc;
11167
11168         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11169         if (rc)
11170                 return -ENOMEM;
11171
11172         if (phba->cfg_fof) {
11173
11174                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11175                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11176                 if (rc)
11177                         goto out_oas_cq;
11178
11179                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11180                                     phba->sli4_hba.oas_cq, LPFC_FCP);
11181                 if (rc)
11182                         goto out_oas_wq;
11183
11184                 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11185                 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11186         }
11187
11188         return 0;
11189
11190 out_oas_wq:
11191         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11192 out_oas_cq:
11193         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11194         return rc;
11195
11196 }
11197
11198 /**
11199  * lpfc_fof_queue_create - Create all the fof queues
11200  * @phba: pointer to lpfc hba data structure.
11201  *
11202  * This routine is invoked to allocate all the fof queues for the FC HBA
11203  * operation. For each SLI4 queue type, the parameters such as queue entry
11204  * count (queue depth) shall be taken from the module parameter. For now,
11205  * we just use some constant number as place holder.
11206  *
11207  * Return codes
11208  *      0 - successful
11209  *      -ENOMEM - No availble memory
11210  *      -EIO - The mailbox failed to complete successfully.
11211  **/
11212 int
11213 lpfc_fof_queue_create(struct lpfc_hba *phba)
11214 {
11215         struct lpfc_queue *qdesc;
11216
11217         /* Create FOF EQ */
11218         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11219                                       phba->sli4_hba.eq_ecount);
11220         if (!qdesc)
11221                 goto out_error;
11222
11223         phba->sli4_hba.fof_eq = qdesc;
11224
11225         if (phba->cfg_fof) {
11226
11227                 /* Create OAS CQ */
11228                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11229                                                       phba->sli4_hba.cq_ecount);
11230                 if (!qdesc)
11231                         goto out_error;
11232
11233                 phba->sli4_hba.oas_cq = qdesc;
11234
11235                 /* Create OAS WQ */
11236                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11237                                               phba->sli4_hba.wq_ecount);
11238                 if (!qdesc)
11239                         goto out_error;
11240
11241                 phba->sli4_hba.oas_wq = qdesc;
11242
11243         }
11244         return 0;
11245
11246 out_error:
11247         lpfc_fof_queue_destroy(phba);
11248         return -ENOMEM;
11249 }
11250
11251 /**
11252  * lpfc_fof_queue_destroy - Destroy all the fof queues
11253  * @phba: pointer to lpfc hba data structure.
11254  *
11255  * This routine is invoked to release all the SLI4 queues with the FC HBA
11256  * operation.
11257  *
11258  * Return codes
11259  *      0 - successful
11260  **/
11261 int
11262 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11263 {
11264         /* Release FOF Event queue */
11265         if (phba->sli4_hba.fof_eq != NULL) {
11266                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11267                 phba->sli4_hba.fof_eq = NULL;
11268         }
11269
11270         /* Release OAS Completion queue */
11271         if (phba->sli4_hba.oas_cq != NULL) {
11272                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11273                 phba->sli4_hba.oas_cq = NULL;
11274         }
11275
11276         /* Release OAS Work queue */
11277         if (phba->sli4_hba.oas_wq != NULL) {
11278                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11279                 phba->sli4_hba.oas_wq = NULL;
11280         }
11281         return 0;
11282 }
11283
11284 static struct pci_device_id lpfc_id_table[] = {
11285         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
11286                 PCI_ANY_ID, PCI_ANY_ID, },
11287         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
11288                 PCI_ANY_ID, PCI_ANY_ID, },
11289         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
11290                 PCI_ANY_ID, PCI_ANY_ID, },
11291         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
11292                 PCI_ANY_ID, PCI_ANY_ID, },
11293         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
11294                 PCI_ANY_ID, PCI_ANY_ID, },
11295         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
11296                 PCI_ANY_ID, PCI_ANY_ID, },
11297         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
11298                 PCI_ANY_ID, PCI_ANY_ID, },
11299         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
11300                 PCI_ANY_ID, PCI_ANY_ID, },
11301         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
11302                 PCI_ANY_ID, PCI_ANY_ID, },
11303         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
11304                 PCI_ANY_ID, PCI_ANY_ID, },
11305         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
11306                 PCI_ANY_ID, PCI_ANY_ID, },
11307         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
11308                 PCI_ANY_ID, PCI_ANY_ID, },
11309         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
11310                 PCI_ANY_ID, PCI_ANY_ID, },
11311         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
11312                 PCI_ANY_ID, PCI_ANY_ID, },
11313         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
11314                 PCI_ANY_ID, PCI_ANY_ID, },
11315         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
11316                 PCI_ANY_ID, PCI_ANY_ID, },
11317         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
11318                 PCI_ANY_ID, PCI_ANY_ID, },
11319         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
11320                 PCI_ANY_ID, PCI_ANY_ID, },
11321         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
11322                 PCI_ANY_ID, PCI_ANY_ID, },
11323         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
11324                 PCI_ANY_ID, PCI_ANY_ID, },
11325         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
11326                 PCI_ANY_ID, PCI_ANY_ID, },
11327         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
11328                 PCI_ANY_ID, PCI_ANY_ID, },
11329         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
11330                 PCI_ANY_ID, PCI_ANY_ID, },
11331         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
11332                 PCI_ANY_ID, PCI_ANY_ID, },
11333         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
11334                 PCI_ANY_ID, PCI_ANY_ID, },
11335         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
11336                 PCI_ANY_ID, PCI_ANY_ID, },
11337         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
11338                 PCI_ANY_ID, PCI_ANY_ID, },
11339         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
11340                 PCI_ANY_ID, PCI_ANY_ID, },
11341         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
11342                 PCI_ANY_ID, PCI_ANY_ID, },
11343         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
11344                 PCI_ANY_ID, PCI_ANY_ID, },
11345         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
11346                 PCI_ANY_ID, PCI_ANY_ID, },
11347         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
11348                 PCI_ANY_ID, PCI_ANY_ID, },
11349         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
11350                 PCI_ANY_ID, PCI_ANY_ID, },
11351         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
11352                 PCI_ANY_ID, PCI_ANY_ID, },
11353         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
11354                 PCI_ANY_ID, PCI_ANY_ID, },
11355         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
11356                 PCI_ANY_ID, PCI_ANY_ID, },
11357         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
11358                 PCI_ANY_ID, PCI_ANY_ID, },
11359         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
11360                 PCI_ANY_ID, PCI_ANY_ID, },
11361         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
11362                 PCI_ANY_ID, PCI_ANY_ID, },
11363         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
11364                 PCI_ANY_ID, PCI_ANY_ID, },
11365         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
11366                 PCI_ANY_ID, PCI_ANY_ID, },
11367         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
11368                 PCI_ANY_ID, PCI_ANY_ID, },
11369         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
11370                 PCI_ANY_ID, PCI_ANY_ID, },
11371         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
11372                 PCI_ANY_ID, PCI_ANY_ID, },
11373         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
11374                 PCI_ANY_ID, PCI_ANY_ID, },
11375         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_G6_FC,
11376                 PCI_ANY_ID, PCI_ANY_ID, },
11377         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
11378                 PCI_ANY_ID, PCI_ANY_ID, },
11379         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
11380                 PCI_ANY_ID, PCI_ANY_ID, },
11381         { 0 }
11382 };
11383
11384 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11385
11386 static const struct pci_error_handlers lpfc_err_handler = {
11387         .error_detected = lpfc_io_error_detected,
11388         .slot_reset = lpfc_io_slot_reset,
11389         .resume = lpfc_io_resume,
11390 };
11391
11392 static struct pci_driver lpfc_driver = {
11393         .name           = LPFC_DRIVER_NAME,
11394         .id_table       = lpfc_id_table,
11395         .probe          = lpfc_pci_probe_one,
11396         .remove         = lpfc_pci_remove_one,
11397         .suspend        = lpfc_pci_suspend_one,
11398         .resume         = lpfc_pci_resume_one,
11399         .err_handler    = &lpfc_err_handler,
11400 };
11401
11402 static const struct file_operations lpfc_mgmt_fop = {
11403         .owner = THIS_MODULE,
11404 };
11405
11406 static struct miscdevice lpfc_mgmt_dev = {
11407         .minor = MISC_DYNAMIC_MINOR,
11408         .name = "lpfcmgmt",
11409         .fops = &lpfc_mgmt_fop,
11410 };
11411
11412 /**
11413  * lpfc_init - lpfc module initialization routine
11414  *
11415  * This routine is to be invoked when the lpfc module is loaded into the
11416  * kernel. The special kernel macro module_init() is used to indicate the
11417  * role of this routine to the kernel as lpfc module entry point.
11418  *
11419  * Return codes
11420  *   0 - successful
11421  *   -ENOMEM - FC attach transport failed
11422  *   all others - failed
11423  */
11424 static int __init
11425 lpfc_init(void)
11426 {
11427         int cpu;
11428         int error = 0;
11429
11430         printk(LPFC_MODULE_DESC "\n");
11431         printk(LPFC_COPYRIGHT "\n");
11432
11433         error = misc_register(&lpfc_mgmt_dev);
11434         if (error)
11435                 printk(KERN_ERR "Could not register lpfcmgmt device, "
11436                         "misc_register returned with status %d", error);
11437
11438         if (lpfc_enable_npiv) {
11439                 lpfc_transport_functions.vport_create = lpfc_vport_create;
11440                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11441         }
11442         lpfc_transport_template =
11443                                 fc_attach_transport(&lpfc_transport_functions);
11444         if (lpfc_transport_template == NULL)
11445                 return -ENOMEM;
11446         if (lpfc_enable_npiv) {
11447                 lpfc_vport_transport_template =
11448                         fc_attach_transport(&lpfc_vport_transport_functions);
11449                 if (lpfc_vport_transport_template == NULL) {
11450                         fc_release_transport(lpfc_transport_template);
11451                         return -ENOMEM;
11452                 }
11453         }
11454
11455         /* Initialize in case vector mapping is needed */
11456         lpfc_used_cpu = NULL;
11457         lpfc_present_cpu = 0;
11458         for_each_present_cpu(cpu)
11459                 lpfc_present_cpu++;
11460
11461         error = pci_register_driver(&lpfc_driver);
11462         if (error) {
11463                 fc_release_transport(lpfc_transport_template);
11464                 if (lpfc_enable_npiv)
11465                         fc_release_transport(lpfc_vport_transport_template);
11466         }
11467
11468         return error;
11469 }
11470
11471 /**
11472  * lpfc_exit - lpfc module removal routine
11473  *
11474  * This routine is invoked when the lpfc module is removed from the kernel.
11475  * The special kernel macro module_exit() is used to indicate the role of
11476  * this routine to the kernel as lpfc module exit point.
11477  */
11478 static void __exit
11479 lpfc_exit(void)
11480 {
11481         misc_deregister(&lpfc_mgmt_dev);
11482         pci_unregister_driver(&lpfc_driver);
11483         fc_release_transport(lpfc_transport_template);
11484         if (lpfc_enable_npiv)
11485                 fc_release_transport(lpfc_vport_transport_template);
11486         if (_dump_buf_data) {
11487                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11488                                 "_dump_buf_data at 0x%p\n",
11489                                 (1L << _dump_buf_data_order), _dump_buf_data);
11490                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11491         }
11492
11493         if (_dump_buf_dif) {
11494                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11495                                 "_dump_buf_dif at 0x%p\n",
11496                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
11497                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11498         }
11499         kfree(lpfc_used_cpu);
11500         idr_destroy(&lpfc_hba_index);
11501 }
11502
11503 module_init(lpfc_init);
11504 module_exit(lpfc_exit);
11505 MODULE_LICENSE("GPL");
11506 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11507 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11508 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);