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                 kfree(mp);
 252                 mb->mbxCommand = MBX_READ_SPARM64;
 253                 /* READ_SPARAM: no buffers */
 254                 lpfc_printf_log(phba,
 255                                 KERN_WARNING,
 256                                 LOG_MBOX,
 257                                 "%d:0301 READ_SPARAM: no buffers\n",
 258                                 phba->brd_no);
 259                 return (1);
 260         }
 261         INIT_LIST_HEAD(&mp->list);
 262         mb->mbxCommand = MBX_READ_SPARM64;
 263         mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
 264         mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys);
 265         mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys);
 266
 267         /* save address for completion */
 268         pmb->context1 = mp;
 269
 270         return (0);
 271 }
 272
 273 /********************************************/
 274 /*  lpfc_unreg_did  Issue a UNREG_DID       */
 275 /*                  mailbox command         */
 276 /********************************************/
 277 void
 278 lpfc_unreg_did(struct lpfc_hba * phba, uint32_t did, LPFC_MBOXQ_t * pmb)
 279 {
 280         MAILBOX_t *mb;
 281
 282         mb = &pmb->mb;
 283         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 284
 285         mb->un.varUnregDID.did = did;
 286
 287         mb->mbxCommand = MBX_UNREG_D_ID;
 288         mb->mbxOwner = OWN_HOST;
 289         return;
 290 }
 291
 292 /***********************************************/
 293
 294 /*                  command to write slim      */
 295 /***********************************************/
 296 void
 297 lpfc_set_slim(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint32_t addr,
 298               uint32_t value)
 299 {
 300         MAILBOX_t *mb;
 301
 302         mb = &pmb->mb;
 303         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 304
 305         /* addr = 0x090597 is AUTO ABTS disable for ELS commands */
 306         /* addr = 0x052198 is DELAYED ABTS enable for ELS commands */
 307
 308         /*
 309          * Always turn on DELAYED ABTS for ELS timeouts
 310          */
 311         if ((addr == 0x052198) && (value == 0))
 312                 value = 1;
 313
 314         mb->un.varWords[0] = addr;
 315         mb->un.varWords[1] = value;
 316
 317         mb->mbxCommand = MBX_SET_SLIM;
 318         mb->mbxOwner = OWN_HOST;
 319         return;
 320 }
 321
 322 /**********************************************/
 323 /*  lpfc_read_nv  Issue a READ CONFIG         */
 324 /*                mailbox command             */
 325 /**********************************************/
 326 void
 327 lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 328 {
 329         MAILBOX_t *mb;
 330
 331         mb = &pmb->mb;
 332         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 333
 334         mb->mbxCommand = MBX_READ_CONFIG;
 335         mb->mbxOwner = OWN_HOST;
 336         return;
 337 }
 338
 339 /********************************************/
 340 /*  lpfc_reg_login  Issue a REG_LOGIN       */
 341 /*                  mailbox command         */
 342 /********************************************/
 343 int
 344 lpfc_reg_login(struct lpfc_hba * phba,
 345                uint32_t did, uint8_t * param, LPFC_MBOXQ_t * pmb, uint32_t flag)
 346 {
 347         uint8_t *sparam;
 348         struct lpfc_dmabuf *mp;
 349         MAILBOX_t *mb;
 350         struct lpfc_sli *psli;
 351
 352         psli = &phba->sli;
 353         mb = &pmb->mb;
 354         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 355
 356         mb->un.varRegLogin.rpi = 0;
 357         mb->un.varRegLogin.did = did;
 358         mb->un.varWords[30] = flag;     /* Set flag to issue action on cmpl */
 359
 360         mb->mbxOwner = OWN_HOST;
 361
 362         /* Get a buffer to hold NPorts Service Parameters */
 363         if (((mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == NULL) ||
 364             ((mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys))) == 0)) {
 365                 kfree(mp);
 366                 mb->mbxCommand = MBX_REG_LOGIN64;
 367                 /* REG_LOGIN: no buffers */
 368                 lpfc_printf_log(phba,
 369                                KERN_WARNING,
 370                                LOG_MBOX,
 371                                "%d:0302 REG_LOGIN: no buffers Data x%x x%x\n",
 372                                phba->brd_no,
 373                                (uint32_t) did, (uint32_t) flag);
 374                 return (1);
 375         }
 376         INIT_LIST_HEAD(&mp->list);
 377         sparam = mp->virt;
 378
 379         /* Copy param's into a new buffer */
 380         memcpy(sparam, param, sizeof (struct serv_parm));
 381
 382         /* save address for completion */
 383         pmb->context1 = (uint8_t *) mp;
 384
 385         mb->mbxCommand = MBX_REG_LOGIN64;
 386         mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
 387         mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys);
 388         mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys);
 389
 390         return (0);
 391 }
 392
 393 /**********************************************/
 394 /*  lpfc_unreg_login  Issue a UNREG_LOGIN     */
 395 /*                    mailbox command         */
 396 /**********************************************/
 397 void
 398 lpfc_unreg_login(struct lpfc_hba * phba, uint32_t rpi, LPFC_MBOXQ_t * pmb)
 399 {
 400         MAILBOX_t *mb;
 401
 402         mb = &pmb->mb;
 403         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 404
 405         mb->un.varUnregLogin.rpi = (uint16_t) rpi;
 406         mb->un.varUnregLogin.rsvd1 = 0;
 407
 408         mb->mbxCommand = MBX_UNREG_LOGIN;
 409         mb->mbxOwner = OWN_HOST;
 410         return;
 411 }
 412
 413 static void
 414 lpfc_config_pcb_setup(struct lpfc_hba * phba)
 415 {
 416         struct lpfc_sli *psli = &phba->sli;
 417         struct lpfc_sli_ring *pring;
 418         PCB_t *pcbp = &phba->slim2p->pcb;
 419         dma_addr_t pdma_addr;
 420         uint32_t offset;
 421         uint32_t iocbCnt;
 422         int i;
 423
 424         pcbp->maxRing = (psli->num_rings - 1);
 425
 426         iocbCnt = 0;
 427         for (i = 0; i < psli->num_rings; i++) {
 428                 pring = &psli->ring[i];
 429                 /* A ring MUST have both cmd and rsp entries defined to be
 430                    valid */
 431                 if ((pring->numCiocb == 0) || (pring->numRiocb == 0)) {
 432                         pcbp->rdsc[i].cmdEntries = 0;
 433                         pcbp->rdsc[i].rspEntries = 0;
 434                         pcbp->rdsc[i].cmdAddrHigh = 0;
 435                         pcbp->rdsc[i].rspAddrHigh = 0;
 436                         pcbp->rdsc[i].cmdAddrLow = 0;
 437                         pcbp->rdsc[i].rspAddrLow = 0;
 438                         pring->cmdringaddr = NULL;
 439                         pring->rspringaddr = NULL;
 440                         continue;
 441                 }
 442                 /* Command ring setup for ring */
 443                 pring->cmdringaddr =
 444                     (void *)&phba->slim2p->IOCBs[iocbCnt];
 445                 pcbp->rdsc[i].cmdEntries = pring->numCiocb;
 446
 447                 offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] -
 448                          (uint8_t *)phba->slim2p;
 449                 pdma_addr = phba->slim2p_mapping + offset;
 450                 pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr);
 451                 pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr);
 452                 iocbCnt += pring->numCiocb;
 453
 454                 /* Response ring setup for ring */
 455                 pring->rspringaddr =
 456                     (void *)&phba->slim2p->IOCBs[iocbCnt];
 457
 458                 pcbp->rdsc[i].rspEntries = pring->numRiocb;
 459                 offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] -
 460                          (uint8_t *)phba->slim2p;
 461                 pdma_addr = phba->slim2p_mapping + offset;
 462                 pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr);
 463                 pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr);
 464                 iocbCnt += pring->numRiocb;
 465         }
 466 }
 467
 468 void
 469 lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 470 {
 471         MAILBOX_t *mb;
 472
 473         mb = &pmb->mb;
 474         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 475         mb->un.varRdRev.cv = 1;
 476         mb->mbxCommand = MBX_READ_REV;
 477         mb->mbxOwner = OWN_HOST;
 478         return;
 479 }
 480
 481 void
 482 lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
 483 {
 484         int i;
 485         MAILBOX_t *mb = &pmb->mb;
 486         struct lpfc_sli *psli;
 487         struct lpfc_sli_ring *pring;
 488
 489         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 490
 491         mb->un.varCfgRing.ring = ring;
 492         mb->un.varCfgRing.maxOrigXchg = 0;
 493         mb->un.varCfgRing.maxRespXchg = 0;
 494         mb->un.varCfgRing.recvNotify = 1;
 495
 496         psli = &phba->sli;
 497         pring = &psli->ring[ring];
 498         mb->un.varCfgRing.numMask = pring->num_mask;
 499         mb->mbxCommand = MBX_CONFIG_RING;
 500         mb->mbxOwner = OWN_HOST;
 501
 502         /* Is this ring configured for a specific profile */
 503         if (pring->prt[0].profile) {
 504                 mb->un.varCfgRing.profile = pring->prt[0].profile;
 505                 return;
 506         }
 507
 508         /* Otherwise we setup specific rctl / type masks for this ring */
 509         for (i = 0; i < pring->num_mask; i++) {
 510                 mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl;
 511                 if (mb->un.varCfgRing.rrRegs[i].rval != FC_ELS_REQ)
 512                         mb->un.varCfgRing.rrRegs[i].rmask = 0xff;
 513                 else
 514                         mb->un.varCfgRing.rrRegs[i].rmask = 0xfe;
 515                 mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type;
 516                 mb->un.varCfgRing.rrRegs[i].tmask = 0xff;
 517         }
 518
 519         return;
 520 }
 521
 522 void
 523 lpfc_config_port(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 524 {
 525         MAILBOX_t *mb = &pmb->mb;
 526         dma_addr_t pdma_addr;
 527         uint32_t bar_low, bar_high;
 528         size_t offset;
 529         struct lpfc_hgp hgp;
 530         void __iomem *to_slim;
 531         int i;
 532
 533         memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
 534         mb->mbxCommand = MBX_CONFIG_PORT;
 535         mb->mbxOwner = OWN_HOST;
 536
 537         mb->un.varCfgPort.pcbLen = sizeof(PCB_t);
 538
 539         offset = (uint8_t *)&phba->slim2p->pcb - (uint8_t *)phba->slim2p;
 540         pdma_addr = phba->slim2p_mapping + offset;
 541         mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
 542         mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
 543
 544         /* Now setup pcb */
 545         phba->slim2p->pcb.type = TYPE_NATIVE_SLI2;
 546         phba->slim2p->pcb.feature = FEATURE_INITIAL_SLI2;
 547
 548         /* Setup Mailbox pointers */
 549         phba->slim2p->pcb.mailBoxSize = sizeof(MAILBOX_t);
 550         offset = (uint8_t *)&phba->slim2p->mbx - (uint8_t *)phba->slim2p;
 551         pdma_addr = phba->slim2p_mapping + offset;
 552         phba->slim2p->pcb.mbAddrHigh = putPaddrHigh(pdma_addr);
 553         phba->slim2p->pcb.mbAddrLow = putPaddrLow(pdma_addr);
 554
 555         /*
 556          * Setup Host Group ring pointer.
 557          *
 558          * For efficiency reasons, the ring get/put pointers can be
 559          * placed in adapter memory (SLIM) rather than in host memory.
 560          * This allows firmware to avoid PCI reads/writes when updating
 561          * and checking pointers.
 562          *
 563          * The firmware recognizes the use of SLIM memory by comparing
 564          * the address of the get/put pointers structure with that of
 565          * the SLIM BAR (BAR0).
 566          *
 567          * Caution: be sure to use the PCI config space value of BAR0/BAR1
 568          * (the hardware's view of the base address), not the OS's
 569          * value of pci_resource_start() as the OS value may be a cookie
 570          * for ioremap/iomap.
 571          */
 572
 573
 574         pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low);
 575         pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high);
 576
 577
 578         /* mask off BAR0's flag bits 0 - 3 */
 579         phba->slim2p->pcb.hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
 580                                         (SLIMOFF*sizeof(uint32_t));
 581         if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64)
 582                 phba->slim2p->pcb.hgpAddrHigh = bar_high;
 583         else
 584                 phba->slim2p->pcb.hgpAddrHigh = 0;
 585         /* write HGP data to SLIM at the required longword offset */
 586         memset(&hgp, 0, sizeof(struct lpfc_hgp));
 587         to_slim = phba->MBslimaddr + (SLIMOFF*sizeof (uint32_t));
 588
 589         for (i=0; i < phba->sli.num_rings; i++) {
 590                 lpfc_memcpy_to_slim(to_slim, &hgp, sizeof(struct lpfc_hgp));
 591                 to_slim += sizeof (struct lpfc_hgp);
 592         }
 593
 594         /* Setup Port Group ring pointer */
 595         offset = (uint8_t *)&phba->slim2p->mbx.us.s2.port -
 596                  (uint8_t *)phba->slim2p;
 597         pdma_addr = phba->slim2p_mapping + offset;
 598         phba->slim2p->pcb.pgpAddrHigh = putPaddrHigh(pdma_addr);
 599         phba->slim2p->pcb.pgpAddrLow = putPaddrLow(pdma_addr);
 600
 601         /* Use callback routine to setp rings in the pcb */
 602         lpfc_config_pcb_setup(phba);
 603
 604         /* special handling for LC HBAs */
 605         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 606                 uint32_t hbainit[5];
 607
 608                 lpfc_hba_init(phba, hbainit);
 609
 610                 memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20);
 611         }
 612
 613         /* Swap PCB if needed */
 614         lpfc_sli_pcimem_bcopy(&phba->slim2p->pcb, &phba->slim2p->pcb,
 615                                                                 sizeof (PCB_t));
 616
 617         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 618                         "%d:0405 Service Level Interface (SLI) 2 selected\n",
 619                         phba->brd_no);
 620 }
 621
 622 void
 623 lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
 624 {
 625         struct lpfc_sli *psli;
 626
 627         psli = &phba->sli;
 628
 629         list_add_tail(&mbq->list, &psli->mboxq);
 630
 631         psli->mboxq_cnt++;
 632
 633         return;
 634 }
 635
 636 LPFC_MBOXQ_t *
 637 lpfc_mbox_get(struct lpfc_hba * phba)
 638 {
 639         LPFC_MBOXQ_t *mbq = NULL;
 640         struct lpfc_sli *psli = &phba->sli;
 641
 642         list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t,
 643                          list);
 644         if (mbq) {
 645                 psli->mboxq_cnt--;
 646         }
 647
 648         return mbq;
 649 }