drivers/scsi/qla2xxx/qla_mid.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2008 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8 #include "qla_gbl.h"
   9
  10 #include <linux/moduleparam.h>
  11 #include <linux/vmalloc.h>
  12 #include <linux/smp_lock.h>
  13 #include <linux/list.h>
  14
  15 #include <scsi/scsi_tcq.h>
  16 #include <scsi/scsicam.h>
  17 #include <linux/delay.h>
  18
  19 void
  20 qla2x00_vp_stop_timer(scsi_qla_host_t *vha)
  21 {
  22         if (vha->vp_idx && vha->timer_active) {
  23                 del_timer_sync(&vha->timer);
  24                 vha->timer_active = 0;
  25         }
  26 }
  27
  28 static uint32_t
  29 qla24xx_allocate_vp_id(scsi_qla_host_t *vha)
  30 {
  31         uint32_t vp_id;
  32         struct qla_hw_data *ha = vha->hw;
  33
  34         /* Find an empty slot and assign an vp_id */
  35         mutex_lock(&ha->vport_lock);
  36         vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1);
  37         if (vp_id > ha->max_npiv_vports) {
  38                 DEBUG15(printk ("vp_id %d is bigger than max-supported %d.\n",
  39                     vp_id, ha->max_npiv_vports));
  40                 mutex_unlock(&ha->vport_lock);
  41                 return vp_id;
  42         }
  43
  44         set_bit(vp_id, ha->vp_idx_map);
  45         ha->num_vhosts++;
  46         ha->cur_vport_count++;
  47         vha->vp_idx = vp_id;
  48         list_add_tail(&vha->list, &ha->vp_list);
  49         mutex_unlock(&ha->vport_lock);
  50         return vp_id;
  51 }
  52
  53 void
  54 qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
  55 {
  56         uint16_t vp_id;
  57         struct qla_hw_data *ha = vha->hw;
  58
  59         mutex_lock(&ha->vport_lock);
  60         vp_id = vha->vp_idx;
  61         ha->num_vhosts--;
  62         ha->cur_vport_count--;
  63         clear_bit(vp_id, ha->vp_idx_map);
  64         list_del(&vha->list);
  65         mutex_unlock(&ha->vport_lock);
  66 }
  67
  68 static scsi_qla_host_t *
  69 qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name)
  70 {
  71         scsi_qla_host_t *vha;
  72         struct scsi_qla_host *tvha;
  73
  74         /* Locate matching device in database. */
  75         list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
  76                 if (!memcmp(port_name, vha->port_name, WWN_SIZE))
  77                         return vha;
  78         }
  79         return NULL;
  80 }
  81
  82 /*
  83  * qla2x00_mark_vp_devices_dead
  84  *      Updates fcport state when device goes offline.
  85  *
  86  * Input:
  87  *      ha = adapter block pointer.
  88  *      fcport = port structure pointer.
  89  *
  90  * Return:
  91  *      None.
  92  *
  93  * Context:
  94  */
  95 static void
  96 qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
  97 {
  98         fc_port_t *fcport;
  99
 100         list_for_each_entry(fcport, &vha->vp_fcports, list) {
 101                 DEBUG15(printk("scsi(%ld): Marking port dead, "
 102                     "loop_id=0x%04x :%x\n",
 103                     vha->host_no, fcport->loop_id, fcport->vp_idx));
 104
 105                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
 106                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
 107                 atomic_set(&fcport->state, FCS_UNCONFIGURED);
 108         }
 109 }
 110
 111 int
 112 qla24xx_disable_vp(scsi_qla_host_t *vha)
 113 {
 114         int ret;
 115
 116         ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
 117         atomic_set(&vha->loop_state, LOOP_DOWN);
 118         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 119
 120         qla2x00_mark_vp_devices_dead(vha);
 121         atomic_set(&vha->vp_state, VP_FAILED);
 122         vha->flags.management_server_logged_in = 0;
 123         if (ret == QLA_SUCCESS) {
 124                 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
 125         } else {
 126                 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 127                 return -1;
 128         }
 129         return 0;
 130 }
 131
 132 int
 133 qla24xx_enable_vp(scsi_qla_host_t *vha)
 134 {
 135         int ret;
 136         struct qla_hw_data *ha = vha->hw;
 137         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 138
 139         /* Check if physical ha port is Up */
 140         if (atomic_read(&base_vha->loop_state) == LOOP_DOWN  ||
 141                 atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 142                 vha->vp_err_state =  VP_ERR_PORTDWN;
 143                 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
 144                 goto enable_failed;
 145         }
 146
 147         /* Initialize the new vport unless it is a persistent port */
 148         mutex_lock(&ha->vport_lock);
 149         ret = qla24xx_modify_vp_config(vha);
 150         mutex_unlock(&ha->vport_lock);
 151
 152         if (ret != QLA_SUCCESS) {
 153                 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 154                 goto enable_failed;
 155         }
 156
 157         DEBUG15(qla_printk(KERN_INFO, ha,
 158             "Virtual port with id: %d - Enabled\n", vha->vp_idx));
 159         return 0;
 160
 161 enable_failed:
 162         DEBUG15(qla_printk(KERN_INFO, ha,
 163             "Virtual port with id: %d - Disabled\n", vha->vp_idx));
 164         return 1;
 165 }
 166
 167 static void
 168 qla24xx_configure_vp(scsi_qla_host_t *vha)
 169 {
 170         struct fc_vport *fc_vport;
 171         int ret;
 172
 173         fc_vport = vha->fc_vport;
 174
 175         DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n",
 176             vha->host_no, __func__));
 177         ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
 178         if (ret != QLA_SUCCESS) {
 179                 DEBUG15(qla_printk(KERN_ERR, vha->hw, "Failed to enable "
 180                     "receiving of RSCN requests: 0x%x\n", ret));
 181                 return;
 182         } else {
 183                 /* Corresponds to SCR enabled */
 184                 clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
 185         }
 186
 187         vha->flags.online = 1;
 188         if (qla24xx_configure_vhba(vha))
 189                 return;
 190
 191         atomic_set(&vha->vp_state, VP_ACTIVE);
 192         fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
 193 }
 194
 195 void
 196 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
 197 {
 198         scsi_qla_host_t *vha, *tvha;
 199         struct qla_hw_data *ha = rsp->hw;
 200         int i = 0;
 201
 202         list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) {
 203                 if (vha->vp_idx) {
 204                         switch (mb[0]) {
 205                         case MBA_LIP_OCCURRED:
 206                         case MBA_LOOP_UP:
 207                         case MBA_LOOP_DOWN:
 208                         case MBA_LIP_RESET:
 209                         case MBA_POINT_TO_POINT:
 210                         case MBA_CHG_IN_CONNECTION:
 211                         case MBA_PORT_UPDATE:
 212                         case MBA_RSCN_UPDATE:
 213                                 DEBUG15(printk("scsi(%ld)%s: Async_event for"
 214                                 " VP[%d], mb = 0x%x, vha=%p\n",
 215                                 vha->host_no, __func__, i, *mb, vha));
 216                                 qla2x00_async_event(vha, rsp, mb);
 217                                 break;
 218                         }
 219                 }
 220                 i++;
 221         }
 222 }
 223
 224 int
 225 qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
 226 {
 227         /*
 228          * Physical port will do most of the abort and recovery work. We can
 229          * just treat it as a loop down
 230          */
 231         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 232                 atomic_set(&vha->loop_state, LOOP_DOWN);
 233                 qla2x00_mark_all_devices_lost(vha, 0);
 234         } else {
 235                 if (!atomic_read(&vha->loop_down_timer))
 236                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 237         }
 238
 239         /* To exclusively reset vport, we need to log it out first.*/
 240         if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
 241                 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
 242
 243         DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n",
 244             vha->host_no, vha->vp_idx));
 245         return qla24xx_enable_vp(vha);
 246 }
 247
 248 static int
 249 qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
 250 {
 251         struct qla_hw_data *ha = vha->hw;
 252         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 253
 254         if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
 255                 /* VP acquired. complete port configuration */
 256                 if (atomic_read(&base_vha->loop_state) == LOOP_READY) {
 257                         qla24xx_configure_vp(vha);
 258                 } else {
 259                         set_bit(VP_IDX_ACQUIRED, &vha->vp_flags);
 260                         set_bit(VP_DPC_NEEDED, &base_vha->dpc_flags);
 261                 }
 262
 263                 return 0;
 264         }
 265
 266         if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
 267                 qla2x00_update_fcports(vha);
 268                 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
 269         }
 270
 271         if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
 272                 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
 273                 atomic_read(&vha->loop_state) != LOOP_DOWN) {
 274
 275                 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
 276                                                 vha->host_no));
 277                 qla2x00_relogin(vha);
 278
 279                 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
 280                                                         vha->host_no));
 281         }
 282
 283         if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
 284             (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
 285                 clear_bit(RESET_ACTIVE, &vha->dpc_flags);
 286         }
 287
 288         if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
 289                 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
 290                         qla2x00_loop_resync(vha);
 291                         clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
 292                 }
 293         }
 294
 295         return 0;
 296 }
 297
 298 void
 299 qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
 300 {
 301         int ret;
 302         struct qla_hw_data *ha = vha->hw;
 303         scsi_qla_host_t *vp;
 304         struct scsi_qla_host *tvp;
 305
 306         if (vha->vp_idx)
 307                 return;
 308         if (list_empty(&ha->vp_list))
 309                 return;
 310
 311         clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
 312
 313         list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) {
 314                 if (vp->vp_idx)
 315                         ret = qla2x00_do_dpc_vp(vp);
 316         }
 317 }
 318
 319 int
 320 qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
 321 {
 322         scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
 323         struct qla_hw_data *ha = base_vha->hw;
 324         scsi_qla_host_t *vha;
 325         uint8_t port_name[WWN_SIZE];
 326
 327         if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
 328                 return VPCERR_UNSUPPORTED;
 329
 330         /* Check up the F/W and H/W support NPIV */
 331         if (!ha->flags.npiv_supported)
 332                 return VPCERR_UNSUPPORTED;
 333
 334         /* Check up whether npiv supported switch presented */
 335         if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
 336                 return VPCERR_NO_FABRIC_SUPP;
 337
 338         /* Check up unique WWPN */
 339         u64_to_wwn(fc_vport->port_name, port_name);
 340         if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
 341                 return VPCERR_BAD_WWN;
 342         vha = qla24xx_find_vhost_by_name(ha, port_name);
 343         if (vha)
 344                 return VPCERR_BAD_WWN;
 345
 346         /* Check up max-npiv-supports */
 347         if (ha->num_vhosts > ha->max_npiv_vports) {
 348                 DEBUG15(printk("scsi(%ld): num_vhosts %ud is bigger than "
 349                     "max_npv_vports %ud.\n", base_vha->host_no,
 350                     ha->num_vhosts, ha->max_npiv_vports));
 351                 return VPCERR_UNSUPPORTED;
 352         }
 353         return 0;
 354 }
 355
 356 scsi_qla_host_t *
 357 qla24xx_create_vhost(struct fc_vport *fc_vport)
 358 {
 359         scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
 360         struct qla_hw_data *ha = base_vha->hw;
 361         scsi_qla_host_t *vha;
 362         struct scsi_host_template *sht = &qla24xx_driver_template;
 363         struct Scsi_Host *host;
 364
 365         vha = qla2x00_create_host(sht, ha);
 366         if (!vha) {
 367                 DEBUG(printk("qla2xxx: scsi_host_alloc() failed for vport\n"));
 368                 return(NULL);
 369         }
 370
 371         host = vha->host;
 372         fc_vport->dd_data = vha;
 373         /* New host info */
 374         u64_to_wwn(fc_vport->node_name, vha->node_name);
 375         u64_to_wwn(fc_vport->port_name, vha->port_name);
 376
 377         vha->fc_vport = fc_vport;
 378         vha->device_flags = 0;
 379         vha->vp_idx = qla24xx_allocate_vp_id(vha);
 380         if (vha->vp_idx > ha->max_npiv_vports) {
 381                 DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
 382                         vha->host_no));
 383                 goto create_vhost_failed;
 384         }
 385         vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
 386
 387         vha->dpc_flags = 0L;
 388         set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 389         set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 390
 391         /*
 392          * To fix the issue of processing a parent's RSCN for the vport before
 393          * its SCR is complete.
 394          */
 395         set_bit(VP_SCR_NEEDED, &vha->vp_flags);
 396         atomic_set(&vha->loop_state, LOOP_DOWN);
 397         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 398
 399         qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
 400
 401         memset(vha->req_ques, 0, sizeof(vha->req_ques));
 402         vha->req_ques[0] = ha->req_q_map[0]->id;
 403         host->can_queue = ha->req_q_map[0]->length + 128;
 404         host->this_id = 255;
 405         host->cmd_per_lun = 3;
 406         host->max_cmd_len = MAX_CMDSZ;
 407         host->max_channel = MAX_BUSES - 1;
 408         host->max_lun = MAX_LUNS;
 409         host->unique_id = host->host_no;
 410         host->max_id = MAX_TARGETS_2200;
 411         host->transportt = qla2xxx_transport_vport_template;
 412
 413         DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n",
 414             vha->host_no, vha));
 415
 416         vha->flags.init_done = 1;
 417
 418         return vha;
 419
 420 create_vhost_failed:
 421         return NULL;
 422 }
 423
 424 static void
 425 qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
 426 {
 427         struct qla_hw_data *ha = vha->hw;
 428         uint16_t que_id = req->id;
 429
 430         dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
 431                 sizeof(request_t), req->ring, req->dma);
 432         req->ring = NULL;
 433         req->dma = 0;
 434         if (que_id) {
 435                 ha->req_q_map[que_id] = NULL;
 436                 mutex_lock(&ha->vport_lock);
 437                 clear_bit(que_id, ha->req_qid_map);
 438                 mutex_unlock(&ha->vport_lock);
 439         }
 440         kfree(req);
 441         req = NULL;
 442 }
 443
 444 static void
 445 qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
 446 {
 447         struct qla_hw_data *ha = vha->hw;
 448         uint16_t que_id = rsp->id;
 449
 450         if (rsp->msix && rsp->msix->have_irq) {
 451                 free_irq(rsp->msix->vector, rsp);
 452                 rsp->msix->have_irq = 0;
 453                 rsp->msix->rsp = NULL;
 454         }
 455         dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
 456                 sizeof(response_t), rsp->ring, rsp->dma);
 457         rsp->ring = NULL;
 458         rsp->dma = 0;
 459         if (que_id) {
 460                 ha->rsp_q_map[que_id] = NULL;
 461                 mutex_lock(&ha->vport_lock);
 462                 clear_bit(que_id, ha->rsp_qid_map);
 463                 mutex_unlock(&ha->vport_lock);
 464         }
 465         kfree(rsp);
 466         rsp = NULL;
 467 }
 468
 469 int
 470 qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
 471 {
 472         int ret = -1;
 473
 474         if (req) {
 475                 req->options |= BIT_0;
 476                 ret = qla25xx_init_req_que(vha, req);
 477         }
 478         if (ret == QLA_SUCCESS)
 479                 qla25xx_free_req_que(vha, req);
 480
 481         return ret;
 482 }
 483
 484 int
 485 qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
 486 {
 487         int ret = -1;
 488
 489         if (rsp) {
 490                 rsp->options |= BIT_0;
 491                 ret = qla25xx_init_rsp_que(vha, rsp);
 492         }
 493         if (ret == QLA_SUCCESS)
 494                 qla25xx_free_rsp_que(vha, rsp);
 495
 496         return ret;
 497 }
 498
 499 int qla25xx_update_req_que(struct scsi_qla_host *vha, uint8_t que, uint8_t qos)
 500 {
 501         int ret = 0;
 502         struct qla_hw_data *ha = vha->hw;
 503         struct req_que *req = ha->req_q_map[que];
 504
 505         req->options |= BIT_3;
 506         req->qos = qos;
 507         ret = qla25xx_init_req_que(vha, req);
 508         if (ret != QLA_SUCCESS)
 509                 DEBUG2_17(printk(KERN_WARNING "%s failed\n", __func__));
 510         /* restore options bit */
 511         req->options &= ~BIT_3;
 512         return ret;
 513 }
 514
 515
 516 /* Delete all queues for a given vhost */
 517 int
 518 qla25xx_delete_queues(struct scsi_qla_host *vha, uint8_t que_no)
 519 {
 520         int cnt, ret = 0;
 521         struct req_que *req = NULL;
 522         struct rsp_que *rsp = NULL;
 523         struct qla_hw_data *ha = vha->hw;
 524
 525         if (que_no) {
 526         /* Delete request queue */
 527                 req = ha->req_q_map[que_no];
 528                 if (req) {
 529                         rsp = req->rsp;
 530                         ret = qla25xx_delete_req_que(vha, req);
 531                         if (ret != QLA_SUCCESS) {
 532                                 qla_printk(KERN_WARNING, ha,
 533                                 "Couldn't delete req que %d\n", req->id);
 534                                 return ret;
 535                         }
 536                         /* Delete associated response queue */
 537                         if (rsp) {
 538                                 ret = qla25xx_delete_rsp_que(vha, rsp);
 539                                 if (ret != QLA_SUCCESS) {
 540                                         qla_printk(KERN_WARNING, ha,
 541                                                 "Couldn't delete rsp que %d\n",
 542                                                 rsp->id);
 543                                         return ret;
 544                                 }
 545                         }
 546                 }
 547         } else {  /* delete all queues of this host */
 548                 for (cnt = 0; cnt < QLA_MAX_HOST_QUES; cnt++) {
 549                         /* Delete request queues */
 550                         req = ha->req_q_map[vha->req_ques[cnt]];
 551                         if (req && req->id) {
 552                                 rsp = req->rsp;
 553                                 ret = qla25xx_delete_req_que(vha, req);
 554                                 if (ret != QLA_SUCCESS) {
 555                                         qla_printk(KERN_WARNING, ha,
 556                                                 "Couldn't delete req que %d\n",
 557                                                 vha->req_ques[cnt]);
 558                                         return ret;
 559                                 }
 560                                 vha->req_ques[cnt] = ha->req_q_map[0]->id;
 561                         /* Delete associated response queue */
 562                                 if (rsp && rsp->id) {
 563                                         ret = qla25xx_delete_rsp_que(vha, rsp);
 564                                         if (ret != QLA_SUCCESS) {
 565                                                 qla_printk(KERN_WARNING, ha,
 566                                                 "Couldn't delete rsp que %d\n",
 567                                                 rsp->id);
 568                                                 return ret;
 569                                         }
 570                                 }
 571                         }
 572                 }
 573         }
 574         qla_printk(KERN_INFO, ha, "Queues deleted for vport:%d\n",
 575                 vha->vp_idx);
 576         return ret;
 577 }
 578
 579 int
 580 qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
 581         uint8_t vp_idx, uint16_t rid, uint8_t rsp_que, uint8_t qos)
 582 {
 583         int ret = 0;
 584         struct req_que *req = NULL;
 585         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 586         uint16_t que_id = 0;
 587
 588         req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
 589         if (req == NULL) {
 590                 qla_printk(KERN_WARNING, ha, "could not allocate memory"
 591                         "for request que\n");
 592                 goto que_failed;
 593         }
 594
 595         req->length = REQUEST_ENTRY_CNT_24XX;
 596         req->ring = dma_alloc_coherent(&ha->pdev->dev,
 597                         (req->length + 1) * sizeof(request_t),
 598                         &req->dma, GFP_KERNEL);
 599         if (req->ring == NULL) {
 600                 qla_printk(KERN_WARNING, ha,
 601                 "Memory Allocation failed - request_ring\n");
 602                 goto que_failed;
 603         }
 604
 605         mutex_lock(&ha->vport_lock);
 606         que_id = find_first_zero_bit(ha->req_qid_map, ha->max_queues);
 607         if (que_id >= ha->max_queues) {
 608                 mutex_unlock(&ha->vport_lock);
 609                 qla_printk(KERN_INFO, ha, "No resources to create "
 610                          "additional request queue\n");
 611                 goto que_failed;
 612         }
 613         set_bit(que_id, ha->req_qid_map);
 614         ha->req_q_map[que_id] = req;
 615         req->rid = rid;
 616         req->vp_idx = vp_idx;
 617         req->qos = qos;
 618
 619         if (ha->rsp_q_map[rsp_que]) {
 620                 req->rsp = ha->rsp_q_map[rsp_que];
 621                 req->rsp->req = req;
 622         }
 623         /* Use alternate PCI bus number */
 624         if (MSB(req->rid))
 625                 options |= BIT_4;
 626         /* Use alternate PCI devfn */
 627         if (LSB(req->rid))
 628                 options |= BIT_5;
 629         req->options = options;
 630         req->ring_ptr = req->ring;
 631         req->ring_index = 0;
 632         req->cnt = req->length;
 633         req->id = que_id;
 634         req->max_q_depth = ha->req_q_map[0]->max_q_depth;
 635         mutex_unlock(&ha->vport_lock);
 636
 637         ret = qla25xx_init_req_que(base_vha, req);
 638         if (ret != QLA_SUCCESS) {
 639                 qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
 640                 mutex_lock(&ha->vport_lock);
 641                 clear_bit(que_id, ha->req_qid_map);
 642                 mutex_unlock(&ha->vport_lock);
 643                 goto que_failed;
 644         }
 645
 646         return req->id;
 647
 648 que_failed:
 649         qla25xx_free_req_que(base_vha, req);
 650         return 0;
 651 }
 652
 653 /* create response queue */
 654 int
 655 qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
 656         uint8_t vp_idx, uint16_t rid)
 657 {
 658         int ret = 0;
 659         struct rsp_que *rsp = NULL;
 660         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 661         uint16_t que_id = 0;;
 662
 663         rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
 664         if (rsp == NULL) {
 665                 qla_printk(KERN_WARNING, ha, "could not allocate memory for"
 666                                 " response que\n");
 667                 goto que_failed;
 668         }
 669
 670         rsp->length = RESPONSE_ENTRY_CNT_2300;
 671         rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
 672                         (rsp->length + 1) * sizeof(response_t),
 673                         &rsp->dma, GFP_KERNEL);
 674         if (rsp->ring == NULL) {
 675                 qla_printk(KERN_WARNING, ha,
 676                 "Memory Allocation failed - response_ring\n");
 677                 goto que_failed;
 678         }
 679
 680         mutex_lock(&ha->vport_lock);
 681         que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_queues);
 682         if (que_id >= ha->max_queues) {
 683                 mutex_unlock(&ha->vport_lock);
 684                 qla_printk(KERN_INFO, ha, "No resources to create "
 685                          "additional response queue\n");
 686                 goto que_failed;
 687         }
 688         set_bit(que_id, ha->rsp_qid_map);
 689
 690         if (ha->flags.msix_enabled)
 691                 rsp->msix = &ha->msix_entries[que_id + 1];
 692         else
 693                 qla_printk(KERN_WARNING, ha, "msix not enabled\n");
 694
 695         ha->rsp_q_map[que_id] = rsp;
 696         rsp->rid = rid;
 697         rsp->vp_idx = vp_idx;
 698         rsp->hw = ha;
 699         /* Use alternate PCI bus number */
 700         if (MSB(rsp->rid))
 701                 options |= BIT_4;
 702         /* Use alternate PCI devfn */
 703         if (LSB(rsp->rid))
 704                 options |= BIT_5;
 705         rsp->options = options;
 706         rsp->ring_ptr = rsp->ring;
 707         rsp->ring_index = 0;
 708         rsp->id = que_id;
 709         mutex_unlock(&ha->vport_lock);
 710
 711         ret = qla25xx_request_irq(rsp);
 712         if (ret)
 713                 goto que_failed;
 714
 715         ret = qla25xx_init_rsp_que(base_vha, rsp);
 716         if (ret != QLA_SUCCESS) {
 717                 qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
 718                 mutex_lock(&ha->vport_lock);
 719                 clear_bit(que_id, ha->rsp_qid_map);
 720                 mutex_unlock(&ha->vport_lock);
 721                 goto que_failed;
 722         }
 723
 724         qla2x00_init_response_q_entries(rsp);
 725
 726         return rsp->id;
 727
 728 que_failed:
 729         qla25xx_free_rsp_que(base_vha, rsp);
 730         return 0;
 731 }
 732
 733 int
 734 qla25xx_create_queues(struct scsi_qla_host *vha, uint8_t qos)
 735 {
 736         uint16_t options = 0;
 737         uint8_t ret = 0;
 738         struct qla_hw_data *ha = vha->hw;
 739
 740         options |= BIT_1;
 741         ret = qla25xx_create_rsp_que(ha, options, vha->vp_idx, 0);
 742         if (!ret) {
 743                 qla_printk(KERN_WARNING, ha, "Response Que create failed\n");
 744                 return ret;
 745         } else
 746                 qla_printk(KERN_INFO, ha, "Response Que:%d created.\n", ret);
 747
 748         options = 0;
 749         if (qos & BIT_7)
 750                 options |= BIT_8;
 751         ret = qla25xx_create_req_que(ha, options, vha->vp_idx, 0, ret,
 752                                         qos & ~BIT_7);
 753         if (ret) {
 754                 vha->req_ques[0] = ret;
 755                 qla_printk(KERN_INFO, ha, "Request Que:%d created.\n", ret);
 756         } else
 757                 qla_printk(KERN_WARNING, ha, "Request Que create failed\n");
 758
 759         return ret;
 760 }