drivers/scsi/lpfc/lpfc_mbox.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2005 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/pci.h>
  24 #include <linux/interrupt.h>
  25
  26 #include <scsi/scsi_device.h>
  27 #include <scsi/scsi_transport_fc.h>
  28
  29 #include <scsi/scsi.h>
  30
  31 #include "lpfc_hw.h"
  32 #include "lpfc_sli.h"
  33 #include "lpfc_disc.h"
  34 #include "lpfc_scsi.h"
  35 #include "lpfc.h"
  36 #include "lpfc_logmsg.h"
  37 #include "lpfc_crtn.h"
  38 #include "lpfc_compat.h"
  39
  40 /**********************************************/
  41
  42 /*                mailbox command             */
  43 /**********************************************/
  44 void
  45 lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset)
  46 {
  47         MAILBOX_t *mb;
  48         void *ctx;
  49
  50         mb = &pmb->mb;
  51         ctx = pmb->context2;
  52
  53         /* Setup to dump VPD region */
  54         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
  55         mb->mbxCommand = MBX_DUMP_MEMORY;
  56         mb->un.varDmp.cv = 1;
  57         mb->un.varDmp.type = DMP_NV_PARAMS;
  58         mb->un.varDmp.entry_index = offset;
  59         mb->un.varDmp.region_id = DMP_REGION_VPD;
  60         mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t));
  61         mb->un.varDmp.co = 0;
  62         mb->un.varDmp.resp_offset = 0;
  63         pmb->context2 = ctx;
  64         mb->mbxOwner = OWN_HOST;
  65         return;
  66 }
  67
  68 /**********************************************/
  69 /*  lpfc_read_nv  Issue a READ NVPARAM        */
  70 /*                mailbox command             */
  71 /**********************************************/
  72 void
  73 lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
  74 {
  75         MAILBOX_t *mb;
  76
  77         mb = &pmb->mb;
  78         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
  79         mb->mbxCommand = MBX_READ_NV;
  80         mb->mbxOwner = OWN_HOST;
  81         return;
  82 }
  83
  84 /**********************************************/
  85 /*  lpfc_read_la  Issue a READ LA             */
  86 /*                mailbox command             */
  87 /**********************************************/
  88 int
  89 lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp)
  90 {
  91         MAILBOX_t *mb;
  92         struct lpfc_sli *psli;
  93
  94         psli = &phba->sli;
  95         mb = &pmb->mb;
  96         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
  97
  98         INIT_LIST_HEAD(&mp->list);
  99         mb->mbxCommand = MBX_READ_LA64;
 100         mb->un.varReadLA.un.lilpBde64.tus.f.bdeSize = 128;
 101         mb->un.varReadLA.un.lilpBde64.addrHigh = putPaddrHigh(mp->phys);
 102         mb->un.varReadLA.un.lilpBde64.addrLow = putPaddrLow(mp->phys);
 103
 104         /* Save address for later completion and set the owner to host so that
 105          * the FW knows this mailbox is available for processing.
 106          */
 107         pmb->context1 = (uint8_t *) mp;
 108         mb->mbxOwner = OWN_HOST;
 109         return (0);
 110 }
 111
 112 /**********************************************/
 113 /*  lpfc_clear_la  Issue a CLEAR LA           */
 114 /*                 mailbox command            */
 115 /**********************************************/
 116 void
 117 lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 118 {
 119         MAILBOX_t *mb;
 120
 121         mb = &pmb->mb;
 122         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 123
 124         mb->un.varClearLA.eventTag = phba->fc_eventTag;
 125         mb->mbxCommand = MBX_CLEAR_LA;
 126         mb->mbxOwner = OWN_HOST;
 127         return;
 128 }
 129
 130 /**************************************************/
 131 /*  lpfc_config_link  Issue a CONFIG LINK         */
 132 /*                    mailbox command             */
 133 /**************************************************/
 134 void
 135 lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 136 {
 137         MAILBOX_t *mb = &pmb->mb;
 138         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 139
 140         /* NEW_FEATURE
 141          * SLI-2, Coalescing Response Feature.
 142          */
 143         if (phba->cfg_cr_delay) {
 144                 mb->un.varCfgLnk.cr = 1;
 145                 mb->un.varCfgLnk.ci = 1;
 146                 mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay;
 147                 mb->un.varCfgLnk.cr_count = phba->cfg_cr_count;
 148         }
 149
 150         mb->un.varCfgLnk.myId = phba->fc_myDID;
 151         mb->un.varCfgLnk.edtov = phba->fc_edtov;
 152         mb->un.varCfgLnk.arbtov = phba->fc_arbtov;
 153         mb->un.varCfgLnk.ratov = phba->fc_ratov;
 154         mb->un.varCfgLnk.rttov = phba->fc_rttov;
 155         mb->un.varCfgLnk.altov = phba->fc_altov;
 156         mb->un.varCfgLnk.crtov = phba->fc_crtov;
 157         mb->un.varCfgLnk.citov = phba->fc_citov;
 158
 159         if (phba->cfg_ack0)
 160                 mb->un.varCfgLnk.ack0_enable = 1;
 161
 162         mb->mbxCommand = MBX_CONFIG_LINK;
 163         mb->mbxOwner = OWN_HOST;
 164         return;
 165 }
 166
 167 /**********************************************/
 168 /*  lpfc_init_link  Issue an INIT LINK        */
 169 /*                  mailbox command           */
 170 /**********************************************/
 171 void
 172 lpfc_init_link(struct lpfc_hba * phba,
 173                LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed)
 174 {
 175         lpfc_vpd_t *vpd;
 176         struct lpfc_sli *psli;
 177         MAILBOX_t *mb;
 178
 179         mb = &pmb->mb;
 180         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 181
 182         psli = &phba->sli;
 183         switch (topology) {
 184         case FLAGS_TOPOLOGY_MODE_LOOP_PT:
 185                 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
 186                 mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
 187                 break;
 188         case FLAGS_TOPOLOGY_MODE_PT_PT:
 189                 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
 190                 break;
 191         case FLAGS_TOPOLOGY_MODE_LOOP:
 192                 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP;
 193                 break;
 194         case FLAGS_TOPOLOGY_MODE_PT_LOOP:
 195                 mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT;
 196                 mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER;
 197                 break;
 198         }
 199
 200         /* NEW_FEATURE
 201          * Setting up the link speed
 202          */
 203         vpd = &phba->vpd;
 204         if (vpd->rev.feaLevelHigh >= 0x02){
 205                 switch(linkspeed){
 206                         case LINK_SPEED_1G:
 207                         case LINK_SPEED_2G:
 208                         case LINK_SPEED_4G:
 209                                 mb->un.varInitLnk.link_flags |=
 210                                                         FLAGS_LINK_SPEED;
 211                                 mb->un.varInitLnk.link_speed = linkspeed;
 212                         break;
 213                         case LINK_SPEED_AUTO:
 214                         default:
 215                                 mb->un.varInitLnk.link_speed =
 216                                                         LINK_SPEED_AUTO;
 217                         break;
 218                 }
 219
 220         }
 221         else
 222                 mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO;
 223
 224         mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK;
 225         mb->mbxOwner = OWN_HOST;
 226         mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA;
 227         return;
 228 }
 229
 230 /**********************************************/
 231 /*  lpfc_read_sparam  Issue a READ SPARAM     */
 232 /*                    mailbox command         */
 233 /**********************************************/
 234 int
 235 lpfc_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 236 {
 237         struct lpfc_dmabuf *mp;
 238         MAILBOX_t *mb;
 239         struct lpfc_sli *psli;
 240
 241         psli = &phba->sli;
 242         mb = &pmb->mb;
 243         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 244
 245         mb->mbxOwner = OWN_HOST;
 246
 247         /* Get a buffer to hold the HBAs Service Parameters */
 248
 249         if (((mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == 0) ||
 250             ((mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys))) == 0)) {
 251                 if (mp)
 252                         kfree(mp);
 253                 mb->mbxCommand = MBX_READ_SPARM64;
 254                 /* READ_SPARAM: no buffers */
 255                 lpfc_printf_log(phba,
 256                                 KERN_WARNING,
 257                                 LOG_MBOX,
 258                                 "%d:0301 READ_SPARAM: no buffers\n",
 259                                 phba->brd_no);
 260                 return (1);
 261         }
 262         INIT_LIST_HEAD(&mp->list);
 263         mb->mbxCommand = MBX_READ_SPARM64;
 264         mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
 265         mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys);
 266         mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys);
 267
 268         /* save address for completion */
 269         pmb->context1 = mp;
 270
 271         return (0);
 272 }
 273
 274 /********************************************/
 275 /*  lpfc_unreg_did  Issue a UNREG_DID       */
 276 /*                  mailbox command         */
 277 /********************************************/
 278 void
 279 lpfc_unreg_did(struct lpfc_hba * phba, uint32_t did, LPFC_MBOXQ_t * pmb)
 280 {
 281         MAILBOX_t *mb;
 282
 283         mb = &pmb->mb;
 284         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 285
 286         mb->un.varUnregDID.did = did;
 287
 288         mb->mbxCommand = MBX_UNREG_D_ID;
 289         mb->mbxOwner = OWN_HOST;
 290         return;
 291 }
 292
 293 /***********************************************/
 294
 295 /*                  command to write slim      */
 296 /***********************************************/
 297 void
 298 lpfc_set_slim(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint32_t addr,
 299               uint32_t value)
 300 {
 301         MAILBOX_t *mb;
 302
 303         mb = &pmb->mb;
 304         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 305
 306         /* addr = 0x090597 is AUTO ABTS disable for ELS commands */
 307         /* addr = 0x052198 is DELAYED ABTS enable for ELS commands */
 308
 309         /*
 310          * Always turn on DELAYED ABTS for ELS timeouts
 311          */
 312         if ((addr == 0x052198) && (value == 0))
 313                 value = 1;
 314
 315         mb->un.varWords[0] = addr;
 316         mb->un.varWords[1] = value;
 317
 318         mb->mbxCommand = MBX_SET_SLIM;
 319         mb->mbxOwner = OWN_HOST;
 320         return;
 321 }
 322
 323 /**********************************************/
 324 /*  lpfc_read_nv  Issue a READ CONFIG         */
 325 /*                mailbox command             */
 326 /**********************************************/
 327 void
 328 lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 329 {
 330         MAILBOX_t *mb;
 331
 332         mb = &pmb->mb;
 333         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 334
 335         mb->mbxCommand = MBX_READ_CONFIG;
 336         mb->mbxOwner = OWN_HOST;
 337         return;
 338 }
 339
 340 /********************************************/
 341 /*  lpfc_reg_login  Issue a REG_LOGIN       */
 342 /*                  mailbox command         */
 343 /********************************************/
 344 int
 345 lpfc_reg_login(struct lpfc_hba * phba,
 346                uint32_t did, uint8_t * param, LPFC_MBOXQ_t * pmb, uint32_t flag)
 347 {
 348         uint8_t *sparam;
 349         struct lpfc_dmabuf *mp;
 350         MAILBOX_t *mb;
 351         struct lpfc_sli *psli;
 352
 353         psli = &phba->sli;
 354         mb = &pmb->mb;
 355         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 356
 357         mb->un.varRegLogin.rpi = 0;
 358         mb->un.varRegLogin.did = did;
 359         mb->un.varWords[30] = flag;     /* Set flag to issue action on cmpl */
 360
 361         mb->mbxOwner = OWN_HOST;
 362
 363         /* Get a buffer to hold NPorts Service Parameters */
 364         if (((mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == NULL) ||
 365             ((mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys))) == 0)) {
 366                 if (mp)
 367                         kfree(mp);
 368
 369                 mb->mbxCommand = MBX_REG_LOGIN64;
 370                 /* REG_LOGIN: no buffers */
 371                 lpfc_printf_log(phba,
 372                                KERN_WARNING,
 373                                LOG_MBOX,
 374                                "%d:0302 REG_LOGIN: no buffers Data x%x x%x\n",
 375                                phba->brd_no,
 376                                (uint32_t) did, (uint32_t) flag);
 377                 return (1);
 378         }
 379         INIT_LIST_HEAD(&mp->list);
 380         sparam = mp->virt;
 381
 382         /* Copy param's into a new buffer */
 383         memcpy(sparam, param, sizeof (struct serv_parm));
 384
 385         /* save address for completion */
 386         pmb->context1 = (uint8_t *) mp;
 387
 388         mb->mbxCommand = MBX_REG_LOGIN64;
 389         mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
 390         mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys);
 391         mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys);
 392
 393         return (0);
 394 }
 395
 396 /**********************************************/
 397 /*  lpfc_unreg_login  Issue a UNREG_LOGIN     */
 398 /*                    mailbox command         */
 399 /**********************************************/
 400 void
 401 lpfc_unreg_login(struct lpfc_hba * phba, uint32_t rpi, LPFC_MBOXQ_t * pmb)
 402 {
 403         MAILBOX_t *mb;
 404
 405         mb = &pmb->mb;
 406         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 407
 408         mb->un.varUnregLogin.rpi = (uint16_t) rpi;
 409         mb->un.varUnregLogin.rsvd1 = 0;
 410
 411         mb->mbxCommand = MBX_UNREG_LOGIN;
 412         mb->mbxOwner = OWN_HOST;
 413         return;
 414 }
 415
 416 static void
 417 lpfc_config_pcb_setup(struct lpfc_hba * phba)
 418 {
 419         struct lpfc_sli *psli = &phba->sli;
 420         struct lpfc_sli_ring *pring;
 421         PCB_t *pcbp = &phba->slim2p->pcb;
 422         dma_addr_t pdma_addr;
 423         uint32_t offset;
 424         uint32_t iocbCnt;
 425         int i;
 426
 427         pcbp->maxRing = (psli->num_rings - 1);
 428
 429         iocbCnt = 0;
 430         for (i = 0; i < psli->num_rings; i++) {
 431                 pring = &psli->ring[i];
 432                 /* A ring MUST have both cmd and rsp entries defined to be
 433                    valid */
 434                 if ((pring->numCiocb == 0) || (pring->numRiocb == 0)) {
 435                         pcbp->rdsc[i].cmdEntries = 0;
 436                         pcbp->rdsc[i].rspEntries = 0;
 437                         pcbp->rdsc[i].cmdAddrHigh = 0;
 438                         pcbp->rdsc[i].rspAddrHigh = 0;
 439                         pcbp->rdsc[i].cmdAddrLow = 0;
 440                         pcbp->rdsc[i].rspAddrLow = 0;
 441                         pring->cmdringaddr = NULL;
 442                         pring->rspringaddr = NULL;
 443                         continue;
 444                 }
 445                 /* Command ring setup for ring */
 446                 pring->cmdringaddr =
 447                     (void *)&phba->slim2p->IOCBs[iocbCnt];
 448                 pcbp->rdsc[i].cmdEntries = pring->numCiocb;
 449
 450                 offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] -
 451                          (uint8_t *)phba->slim2p;
 452                 pdma_addr = phba->slim2p_mapping + offset;
 453                 pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr);
 454                 pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr);
 455                 iocbCnt += pring->numCiocb;
 456
 457                 /* Response ring setup for ring */
 458                 pring->rspringaddr =
 459                     (void *)&phba->slim2p->IOCBs[iocbCnt];
 460
 461                 pcbp->rdsc[i].rspEntries = pring->numRiocb;
 462                 offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] -
 463                          (uint8_t *)phba->slim2p;
 464                 pdma_addr = phba->slim2p_mapping + offset;
 465                 pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr);
 466                 pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr);
 467                 iocbCnt += pring->numRiocb;
 468         }
 469 }
 470
 471 void
 472 lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 473 {
 474         MAILBOX_t *mb;
 475
 476         mb = &pmb->mb;
 477         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 478         mb->un.varRdRev.cv = 1;
 479         mb->mbxCommand = MBX_READ_REV;
 480         mb->mbxOwner = OWN_HOST;
 481         return;
 482 }
 483
 484 void
 485 lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
 486 {
 487         int i;
 488         MAILBOX_t *mb = &pmb->mb;
 489         struct lpfc_sli *psli;
 490         struct lpfc_sli_ring *pring;
 491
 492         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 493
 494         mb->un.varCfgRing.ring = ring;
 495         mb->un.varCfgRing.maxOrigXchg = 0;
 496         mb->un.varCfgRing.maxRespXchg = 0;
 497         mb->un.varCfgRing.recvNotify = 1;
 498
 499         psli = &phba->sli;
 500         pring = &psli->ring[ring];
 501         mb->un.varCfgRing.numMask = pring->num_mask;
 502         mb->mbxCommand = MBX_CONFIG_RING;
 503         mb->mbxOwner = OWN_HOST;
 504
 505         /* Is this ring configured for a specific profile */
 506         if (pring->prt[0].profile) {
 507                 mb->un.varCfgRing.profile = pring->prt[0].profile;
 508                 return;
 509         }
 510
 511         /* Otherwise we setup specific rctl / type masks for this ring */
 512         for (i = 0; i < pring->num_mask; i++) {
 513                 mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl;
 514                 if (mb->un.varCfgRing.rrRegs[i].rval != FC_ELS_REQ)
 515                         mb->un.varCfgRing.rrRegs[i].rmask = 0xff;
 516                 else
 517                         mb->un.varCfgRing.rrRegs[i].rmask = 0xfe;
 518                 mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type;
 519                 mb->un.varCfgRing.rrRegs[i].tmask = 0xff;
 520         }
 521
 522         return;
 523 }
 524
 525 void
 526 lpfc_config_port(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 527 {
 528         MAILBOX_t *mb = &pmb->mb;
 529         dma_addr_t pdma_addr;
 530         uint32_t bar_low, bar_high;
 531         size_t offset;
 532         struct lpfc_hgp hgp;
 533         void __iomem *to_slim;
 534         int i;
 535
 536         memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
 537         mb->mbxCommand = MBX_CONFIG_PORT;
 538         mb->mbxOwner = OWN_HOST;
 539
 540         mb->un.varCfgPort.pcbLen = sizeof(PCB_t);
 541
 542         offset = (uint8_t *)&phba->slim2p->pcb - (uint8_t *)phba->slim2p;
 543         pdma_addr = phba->slim2p_mapping + offset;
 544         mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
 545         mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
 546
 547         /* Now setup pcb */
 548         phba->slim2p->pcb.type = TYPE_NATIVE_SLI2;
 549         phba->slim2p->pcb.feature = FEATURE_INITIAL_SLI2;
 550
 551         /* Setup Mailbox pointers */
 552         phba->slim2p->pcb.mailBoxSize = sizeof(MAILBOX_t);
 553         offset = (uint8_t *)&phba->slim2p->mbx - (uint8_t *)phba->slim2p;
 554         pdma_addr = phba->slim2p_mapping + offset;
 555         phba->slim2p->pcb.mbAddrHigh = putPaddrHigh(pdma_addr);
 556         phba->slim2p->pcb.mbAddrLow = putPaddrLow(pdma_addr);
 557
 558         /*
 559          * Setup Host Group ring pointer.
 560          *
 561          * For efficiency reasons, the ring get/put pointers can be
 562          * placed in adapter memory (SLIM) rather than in host memory.
 563          * This allows firmware to avoid PCI reads/writes when updating
 564          * and checking pointers.
 565          *
 566          * The firmware recognizes the use of SLIM memory by comparing
 567          * the address of the get/put pointers structure with that of
 568          * the SLIM BAR (BAR0).
 569          *
 570          * Caution: be sure to use the PCI config space value of BAR0/BAR1
 571          * (the hardware's view of the base address), not the OS's
 572          * value of pci_resource_start() as the OS value may be a cookie
 573          * for ioremap/iomap.
 574          */
 575
 576
 577         pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low);
 578         pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high);
 579
 580
 581         /* mask off BAR0's flag bits 0 - 3 */
 582         phba->slim2p->pcb.hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
 583                                         (SLIMOFF*sizeof(uint32_t));
 584         if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64)
 585                 phba->slim2p->pcb.hgpAddrHigh = bar_high;
 586         else
 587                 phba->slim2p->pcb.hgpAddrHigh = 0;
 588         /* write HGP data to SLIM at the required longword offset */
 589         memset(&hgp, 0, sizeof(struct lpfc_hgp));
 590         to_slim = phba->MBslimaddr + (SLIMOFF*sizeof (uint32_t));
 591
 592         for (i=0; i < phba->sli.num_rings; i++) {
 593                 lpfc_memcpy_to_slim(to_slim, &hgp, sizeof(struct lpfc_hgp));
 594                 to_slim += sizeof (struct lpfc_hgp);
 595         }
 596
 597         /* Setup Port Group ring pointer */
 598         offset = (uint8_t *)&phba->slim2p->mbx.us.s2.port -
 599                  (uint8_t *)phba->slim2p;
 600         pdma_addr = phba->slim2p_mapping + offset;
 601         phba->slim2p->pcb.pgpAddrHigh = putPaddrHigh(pdma_addr);
 602         phba->slim2p->pcb.pgpAddrLow = putPaddrLow(pdma_addr);
 603
 604         /* Use callback routine to setp rings in the pcb */
 605         lpfc_config_pcb_setup(phba);
 606
 607         /* special handling for LC HBAs */
 608         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 609                 uint32_t hbainit[5];
 610
 611                 lpfc_hba_init(phba, hbainit);
 612
 613                 memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20);
 614         }
 615
 616         /* Swap PCB if needed */
 617         lpfc_sli_pcimem_bcopy(&phba->slim2p->pcb, &phba->slim2p->pcb,
 618                                                                 sizeof (PCB_t));
 619
 620         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 621                         "%d:0405 Service Level Interface (SLI) 2 selected\n",
 622                         phba->brd_no);
 623 }
 624
 625 void
 626 lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
 627 {
 628         struct lpfc_sli *psli;
 629
 630         psli = &phba->sli;
 631
 632         list_add_tail(&mbq->list, &psli->mboxq);
 633
 634         psli->mboxq_cnt++;
 635
 636         return;
 637 }
 638
 639 LPFC_MBOXQ_t *
 640 lpfc_mbox_get(struct lpfc_hba * phba)
 641 {
 642         LPFC_MBOXQ_t *mbq = NULL;
 643         struct lpfc_sli *psli = &phba->sli;
 644
 645         list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t,
 646                          list);
 647         if (mbq) {
 648                 psli->mboxq_cnt--;
 649         }
 650
 651         return mbq;
 652 }