git.oblomov.eu Git - linux-2.6/blob - 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
  73         /* Locate matching device in database. */
  74         list_for_each_entry(vha, &ha->vp_list, list) {
  75                 if (!memcmp(port_name, vha->port_name, WWN_SIZE))
  76                         return vha;
  77         }
  78         return NULL;
  79 }
  80
  81 /*
  82  * qla2x00_mark_vp_devices_dead
  83  *      Updates fcport state when device goes offline.
  84  *
  85  * Input:
  86  *      ha = adapter block pointer.
  87  *      fcport = port structure pointer.
  88  *
  89  * Return:
  90  *      None.
  91  *
  92  * Context:
  93  */
  94 static void
  95 qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
  96 {
  97         fc_port_t *fcport;
  98
  99         list_for_each_entry(fcport, &vha->vp_fcports, list) {
 100                 DEBUG15(printk("scsi(%ld): Marking port dead, "
 101                     "loop_id=0x%04x :%x\n",
 102                     vha->host_no, fcport->loop_id, fcport->vp_idx));
 103
 104                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
 105                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
 106                 atomic_set(&fcport->state, FCS_UNCONFIGURED);
 107         }
 108 }
 109
 110 int
 111 qla24xx_disable_vp(scsi_qla_host_t *vha)
 112 {
 113         int ret;
 114
 115         ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
 116         atomic_set(&vha->loop_state, LOOP_DOWN);
 117         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 118
 119         qla2x00_mark_vp_devices_dead(vha);
 120         atomic_set(&vha->vp_state, VP_FAILED);
 121         vha->flags.management_server_logged_in = 0;
 122         if (ret == QLA_SUCCESS) {
 123                 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED);
 124         } else {
 125                 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 126                 return -1;
 127         }
 128         return 0;
 129 }
 130
 131 int
 132 qla24xx_enable_vp(scsi_qla_host_t *vha)
 133 {
 134         int ret;
 135         struct qla_hw_data *ha = vha->hw;
 136         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 137
 138         /* Check if physical ha port is Up */
 139         if (atomic_read(&base_vha->loop_state) == LOOP_DOWN  ||
 140                 atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
 141                 vha->vp_err_state =  VP_ERR_PORTDWN;
 142                 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN);
 143                 goto enable_failed;
 144         }
 145
 146         /* Initialize the new vport unless it is a persistent port */
 147         mutex_lock(&ha->vport_lock);
 148         ret = qla24xx_modify_vp_config(vha);
 149         mutex_unlock(&ha->vport_lock);
 150
 151         if (ret != QLA_SUCCESS) {
 152                 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 153                 goto enable_failed;
 154         }
 155
 156         DEBUG15(qla_printk(KERN_INFO, ha,
 157             "Virtual port with id: %d - Enabled\n", vha->vp_idx));
 158         return 0;
 159
 160 enable_failed:
 161         DEBUG15(qla_printk(KERN_INFO, ha,
 162             "Virtual port with id: %d - Disabled\n", vha->vp_idx));
 163         return 1;
 164 }
 165
 166 static void
 167 qla24xx_configure_vp(scsi_qla_host_t *vha)
 168 {
 169         struct fc_vport *fc_vport;
 170         int ret;
 171
 172         fc_vport = vha->fc_vport;
 173
 174         DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n",
 175             vha->host_no, __func__));
 176         ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx);
 177         if (ret != QLA_SUCCESS) {
 178                 DEBUG15(qla_printk(KERN_ERR, vha->hw, "Failed to enable "
 179                     "receiving of RSCN requests: 0x%x\n", ret));
 180                 return;
 181         } else {
 182                 /* Corresponds to SCR enabled */
 183                 clear_bit(VP_SCR_NEEDED, &vha->vp_flags);
 184         }
 185
 186         vha->flags.online = 1;
 187         if (qla24xx_configure_vhba(vha))
 188                 return;
 189
 190         atomic_set(&vha->vp_state, VP_ACTIVE);
 191         fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
 192 }
 193
 194 void
 195 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
 196 {
 197         scsi_qla_host_t *vha;
 198         struct qla_hw_data *ha = rsp->hw;
 199         int i = 0;
 200
 201         list_for_each_entry(vha, &ha->vp_list, list) {
 202                 if (vha->vp_idx) {
 203                         switch (mb[0]) {
 204                         case MBA_LIP_OCCURRED:
 205                         case MBA_LOOP_UP:
 206                         case MBA_LOOP_DOWN:
 207                         case MBA_LIP_RESET:
 208                         case MBA_POINT_TO_POINT:
 209                         case MBA_CHG_IN_CONNECTION:
 210                         case MBA_PORT_UPDATE:
 211                         case MBA_RSCN_UPDATE:
 212                                 DEBUG15(printk("scsi(%ld)%s: Async_event for"
 213                                 " VP[%d], mb = 0x%x, vha=%p\n",
 214                                 vha->host_no, __func__, i, *mb, vha));
 215                                 qla2x00_async_event(vha, rsp, mb);
 216                                 break;
 217                         }
 218                 }
 219                 i++;
 220         }
 221 }
 222
 223 int
 224 qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
 225 {
 226         /*
 227          * Physical port will do most of the abort and recovery work. We can
 228          * just treat it as a loop down
 229          */
 230         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 231                 atomic_set(&vha->loop_state, LOOP_DOWN);
 232                 qla2x00_mark_all_devices_lost(vha, 0);
 233         } else {
 234                 if (!atomic_read(&vha->loop_down_timer))
 235                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 236         }
 237
 238         /* To exclusively reset vport, we need to log it out first.*/
 239         if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
 240                 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
 241
 242         DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n",
 243             vha->host_no, vha->vp_idx));
 244         return qla24xx_enable_vp(vha);
 245 }
 246
 247 static int
 248 qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
 249 {
 250         struct qla_hw_data *ha = vha->hw;
 251         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 252
 253         if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) {
 254                 /* VP acquired. complete port configuration */
 255                 if (atomic_read(&base_vha->loop_state) == LOOP_READY) {
 256                         qla24xx_configure_vp(vha);
 257                 } else {
 258                         set_bit(VP_IDX_ACQUIRED, &vha->vp_flags);
 259                         set_bit(VP_DPC_NEEDED, &base_vha->dpc_flags);
 260                 }
 261
 262                 return 0;
 263         }
 264
 265         if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) {
 266                 qla2x00_update_fcports(vha);
 267                 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags);
 268         }
 269
 270         if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) &&
 271                 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) &&
 272                 atomic_read(&vha->loop_state) != LOOP_DOWN) {
 273
 274                 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
 275                                                 vha->host_no));
 276                 qla2x00_relogin(vha);
 277
 278                 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
 279                                                         vha->host_no));
 280         }
 281
 282         if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) &&
 283             (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) {
 284                 clear_bit(RESET_ACTIVE, &vha->dpc_flags);
 285         }
 286
 287         if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
 288                 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
 289                         qla2x00_loop_resync(vha);
 290                         clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
 291                 }
 292         }
 293
 294         return 0;
 295 }
 296
 297 void
 298 qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha)
 299 {
 300         int ret;
 301         struct qla_hw_data *ha = vha->hw;
 302         scsi_qla_host_t *vp;
 303
 304         if (vha->vp_idx)
 305                 return;
 306         if (list_empty(&ha->vp_list))
 307                 return;
 308
 309         clear_bit(VP_DPC_NEEDED, &vha->dpc_flags);
 310
 311         list_for_each_entry(vp, &ha->vp_list, list) {
 312                 if (vp->vp_idx)
 313                         ret = qla2x00_do_dpc_vp(vp);
 314         }
 315 }
 316
 317 int
 318 qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport)
 319 {
 320         scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
 321         struct qla_hw_data *ha = base_vha->hw;
 322         scsi_qla_host_t *vha;
 323         uint8_t port_name[WWN_SIZE];
 324
 325         if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR)
 326                 return VPCERR_UNSUPPORTED;
 327
 328         /* Check up the F/W and H/W support NPIV */
 329         if (!ha->flags.npiv_supported)
 330                 return VPCERR_UNSUPPORTED;
 331
 332         /* Check up whether npiv supported switch presented */
 333         if (!(ha->switch_cap & FLOGI_MID_SUPPORT))
 334                 return VPCERR_NO_FABRIC_SUPP;
 335
 336         /* Check up unique WWPN */
 337         u64_to_wwn(fc_vport->port_name, port_name);
 338         if (!memcmp(port_name, base_vha->port_name, WWN_SIZE))
 339                 return VPCERR_BAD_WWN;
 340         vha = qla24xx_find_vhost_by_name(ha, port_name);
 341         if (vha)
 342                 return VPCERR_BAD_WWN;
 343
 344         /* Check up max-npiv-supports */
 345         if (ha->num_vhosts > ha->max_npiv_vports) {
 346                 DEBUG15(printk("scsi(%ld): num_vhosts %ud is bigger than "
 347                     "max_npv_vports %ud.\n", base_vha->host_no,
 348                     ha->num_vhosts, ha->max_npiv_vports));
 349                 return VPCERR_UNSUPPORTED;
 350         }
 351         return 0;
 352 }
 353
 354 scsi_qla_host_t *
 355 qla24xx_create_vhost(struct fc_vport *fc_vport)
 356 {
 357         scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
 358         struct qla_hw_data *ha = base_vha->hw;
 359         scsi_qla_host_t *vha;
 360         struct scsi_host_template *sht = &qla24xx_driver_template;
 361         struct Scsi_Host *host;
 362
 363         vha = qla2x00_create_host(sht, ha);
 364         if (!vha) {
 365                 DEBUG(printk("qla2xxx: scsi_host_alloc() failed for vport\n"));
 366                 return(NULL);
 367         }
 368
 369         host = vha->host;
 370         fc_vport->dd_data = vha;
 371         /* New host info */
 372         u64_to_wwn(fc_vport->node_name, vha->node_name);
 373         u64_to_wwn(fc_vport->port_name, vha->port_name);
 374
 375         vha->fc_vport = fc_vport;
 376         vha->device_flags = 0;
 377         vha->vp_idx = qla24xx_allocate_vp_id(vha);
 378         if (vha->vp_idx > ha->max_npiv_vports) {
 379                 DEBUG15(printk("scsi(%ld): Couldn't allocate vp_id.\n",
 380                         vha->host_no));
 381                 goto create_vhost_failed;
 382         }
 383         vha->mgmt_svr_loop_id = 10 + vha->vp_idx;
 384
 385         vha->dpc_flags = 0L;
 386         set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 387         set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 388
 389         /*
 390          * To fix the issue of processing a parent's RSCN for the vport before
 391          * its SCR is complete.
 392          */
 393         set_bit(VP_SCR_NEEDED, &vha->vp_flags);
 394         atomic_set(&vha->loop_state, LOOP_DOWN);
 395         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 396
 397         qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
 398
 399         memset(vha->req_ques, 0, sizeof(vha->req_ques) * QLA_MAX_HOST_QUES);
 400         vha->req_ques[0] = ha->req_q_map[0]->id;
 401         host->can_queue = ha->req_q_map[0]->length + 128;
 402         host->this_id = 255;
 403         host->cmd_per_lun = 3;
 404         host->max_cmd_len = MAX_CMDSZ;
 405         host->max_channel = MAX_BUSES - 1;
 406         host->max_lun = MAX_LUNS;
 407         host->unique_id = host->host_no;
 408         host->max_id = MAX_TARGETS_2200;
 409         host->transportt = qla2xxx_transport_vport_template;
 410
 411         DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n",
 412             vha->host_no, vha));
 413
 414         vha->flags.init_done = 1;
 415
 416         return vha;
 417
 418 create_vhost_failed:
 419         return NULL;
 420 }
 421
 422 static void
 423 qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
 424 {
 425         struct qla_hw_data *ha = vha->hw;
 426         uint16_t que_id = req->id;
 427
 428         dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
 429                 sizeof(request_t), req->ring, req->dma);
 430         req->ring = NULL;
 431         req->dma = 0;
 432         if (que_id) {
 433                 ha->req_q_map[que_id] = NULL;
 434                 mutex_lock(&ha->vport_lock);
 435                 clear_bit(que_id, ha->req_qid_map);
 436                 mutex_unlock(&ha->vport_lock);
 437         }
 438         kfree(req);
 439         req = NULL;
 440 }
 441
 442 static void
 443 qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
 444 {
 445         struct qla_hw_data *ha = vha->hw;
 446         uint16_t que_id = rsp->id;
 447
 448         if (rsp->msix && rsp->msix->have_irq) {
 449                 free_irq(rsp->msix->vector, rsp);
 450                 rsp->msix->have_irq = 0;
 451                 rsp->msix->rsp = NULL;
 452         }
 453         dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
 454                 sizeof(response_t), rsp->ring, rsp->dma);
 455         rsp->ring = NULL;
 456         rsp->dma = 0;
 457         if (que_id) {
 458                 ha->rsp_q_map[que_id] = NULL;
 459                 mutex_lock(&ha->vport_lock);
 460                 clear_bit(que_id, ha->rsp_qid_map);
 461                 mutex_unlock(&ha->vport_lock);
 462         }
 463         kfree(rsp);
 464         rsp = NULL;
 465 }
 466
 467 int
 468 qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
 469 {
 470         int ret = -1;
 471
 472         if (req) {
 473                 req->options |= BIT_0;
 474                 ret = qla25xx_init_req_que(vha, req, req->options);
 475         }
 476         if (ret == QLA_SUCCESS)
 477                 qla25xx_free_req_que(vha, req);
 478
 479         return ret;
 480 }
 481
 482 int
 483 qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
 484 {
 485         int ret = -1;
 486
 487         if (rsp) {
 488                 rsp->options |= BIT_0;
 489                 ret = qla25xx_init_rsp_que(vha, rsp, rsp->options);
 490         }
 491         if (ret == QLA_SUCCESS)
 492                 qla25xx_free_rsp_que(vha, rsp);
 493
 494         return ret;
 495 }
 496
 497 int qla25xx_update_req_que(struct scsi_qla_host *vha, uint8_t que, uint8_t qos)
 498 {
 499         int ret = 0;
 500         struct qla_hw_data *ha = vha->hw;
 501         struct req_que *req = ha->req_q_map[que];
 502
 503         req->options |= BIT_3;
 504         req->qos = qos;
 505         ret = qla25xx_init_req_que(vha, req, req->options);
 506         if (ret != QLA_SUCCESS)
 507                 DEBUG2_17(printk(KERN_WARNING "%s failed\n", __func__));
 508         /* restore options bit */
 509         req->options &= ~BIT_3;
 510         return ret;
 511 }
 512
 513
 514 /* Delete all queues for a given vhost */
 515 int
 516 qla25xx_delete_queues(struct scsi_qla_host *vha, uint8_t que_no)
 517 {
 518         int cnt, ret = 0;
 519         struct req_que *req = NULL;
 520         struct rsp_que *rsp = NULL;
 521         struct qla_hw_data *ha = vha->hw;
 522
 523         if (que_no) {
 524         /* Delete request queue */
 525                 req = ha->req_q_map[que_no];
 526                 if (req) {
 527                         rsp = req->rsp;
 528                         ret = qla25xx_delete_req_que(vha, req);
 529                         if (ret != QLA_SUCCESS) {
 530                                 qla_printk(KERN_WARNING, ha,
 531                                 "Couldn't delete req que %d\n", req->id);
 532                                 return ret;
 533                         }
 534                         /* Delete associated response queue */
 535                         if (rsp) {
 536                                 ret = qla25xx_delete_rsp_que(vha, rsp);
 537                                 if (ret != QLA_SUCCESS) {
 538                                         qla_printk(KERN_WARNING, ha,
 539                                                 "Couldn't delete rsp que %d\n",
 540                                                 rsp->id);
 541                                         return ret;
 542                                 }
 543                         }
 544                 }
 545         } else {  /* delete all queues of this host */
 546                 for (cnt = 0; cnt < QLA_MAX_HOST_QUES; cnt++) {
 547                         /* Delete request queues */
 548                         req = ha->req_q_map[vha->req_ques[cnt]];
 549                         if (req && req->id) {
 550                                 rsp = req->rsp;
 551                                 ret = qla25xx_delete_req_que(vha, req);
 552                                 if (ret != QLA_SUCCESS) {
 553                                         qla_printk(KERN_WARNING, ha,
 554                                                 "Couldn't delete req que %d\n",
 555                                                 vha->req_ques[cnt]);
 556                                         return ret;
 557                                 }
 558                                 vha->req_ques[cnt] = ha->req_q_map[0]->id;
 559                         /* Delete associated response queue */
 560                                 if (rsp && rsp->id) {
 561                                         ret = qla25xx_delete_rsp_que(vha, rsp);
 562                                         if (ret != QLA_SUCCESS) {
 563                                                 qla_printk(KERN_WARNING, ha,
 564                                                 "Couldn't delete rsp que %d\n",
 565                                                 rsp->id);
 566                                                 return ret;
 567                                         }
 568                                 }
 569                         }
 570                 }
 571         }
 572         qla_printk(KERN_INFO, ha, "Queues deleted for vport:%d\n",
 573                 vha->vp_idx);
 574         return ret;
 575 }
 576
 577 int
 578 qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
 579         uint8_t vp_idx, uint16_t rid, uint8_t rsp_que, uint8_t qos)
 580 {
 581         int ret = 0;
 582         struct req_que *req = NULL;
 583         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 584         uint16_t que_id = 0;
 585
 586         req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
 587         if (req == NULL) {
 588                 qla_printk(KERN_WARNING, ha, "could not allocate memory"
 589                         "for request que\n");
 590                 goto que_failed;
 591         }
 592
 593         req->length = REQUEST_ENTRY_CNT_24XX;
 594         req->ring = dma_alloc_coherent(&ha->pdev->dev,
 595                         (req->length + 1) * sizeof(request_t),
 596                         &req->dma, GFP_KERNEL);
 597         if (req->ring == NULL) {
 598                 qla_printk(KERN_WARNING, ha,
 599                 "Memory Allocation failed - request_ring\n");
 600                 goto que_failed;
 601         }
 602
 603         mutex_lock(&ha->vport_lock);
 604         que_id = find_first_zero_bit(ha->req_qid_map, ha->max_queues);
 605         if (que_id >= ha->max_queues) {
 606                 mutex_unlock(&ha->vport_lock);
 607                 qla_printk(KERN_INFO, ha, "No resources to create "
 608                          "additional request queue\n");
 609                 goto que_failed;
 610         }
 611         set_bit(que_id, ha->req_qid_map);
 612         ha->req_q_map[que_id] = req;
 613         req->rid = rid;
 614         req->vp_idx = vp_idx;
 615         req->qos = qos;
 616
 617         if (ha->rsp_q_map[rsp_que]) {
 618                 req->rsp = ha->rsp_q_map[rsp_que];
 619                 req->rsp->req = req;
 620         }
 621         /* Use alternate PCI bus number */
 622         if (MSB(req->rid))
 623                 options |= BIT_4;
 624         /* Use alternate PCI devfn */
 625         if (LSB(req->rid))
 626                 options |= BIT_5;
 627         req->options = options;
 628         req->ring_ptr = req->ring;
 629         req->ring_index = 0;
 630         req->cnt = req->length;
 631         req->id = que_id;
 632         req->max_q_depth = ha->req_q_map[0]->max_q_depth;
 633         mutex_unlock(&ha->vport_lock);
 634
 635         ret = qla25xx_init_req_que(base_vha, req, options);
 636         if (ret != QLA_SUCCESS) {
 637                 qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
 638                 mutex_lock(&ha->vport_lock);
 639                 clear_bit(que_id, ha->req_qid_map);
 640                 mutex_unlock(&ha->vport_lock);
 641                 goto que_failed;
 642         }
 643
 644         return req->id;
 645
 646 que_failed:
 647         qla25xx_free_req_que(base_vha, req);
 648         return 0;
 649 }
 650
 651 /* create response queue */
 652 int
 653 qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
 654         uint8_t vp_idx, uint16_t rid)
 655 {
 656         int ret = 0;
 657         struct rsp_que *rsp = NULL;
 658         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
 659         uint16_t que_id = 0;;
 660
 661         rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
 662         if (rsp == NULL) {
 663                 qla_printk(KERN_WARNING, ha, "could not allocate memory for"
 664                                 " response que\n");
 665                 goto que_failed;
 666         }
 667
 668         rsp->length = RESPONSE_ENTRY_CNT_2300;
 669         rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
 670                         (rsp->length + 1) * sizeof(response_t),
 671                         &rsp->dma, GFP_KERNEL);
 672         if (rsp->ring == NULL) {
 673                 qla_printk(KERN_WARNING, ha,
 674                 "Memory Allocation failed - response_ring\n");
 675                 goto que_failed;
 676         }
 677
 678         mutex_lock(&ha->vport_lock);
 679         que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_queues);
 680         if (que_id >= ha->max_queues) {
 681                 mutex_unlock(&ha->vport_lock);
 682                 qla_printk(KERN_INFO, ha, "No resources to create "
 683                          "additional response queue\n");
 684                 goto que_failed;
 685         }
 686         set_bit(que_id, ha->rsp_qid_map);
 687
 688         if (ha->flags.msix_enabled)
 689                 rsp->msix = &ha->msix_entries[que_id + 1];
 690         else
 691                 qla_printk(KERN_WARNING, ha, "msix not enabled\n");
 692
 693         ha->rsp_q_map[que_id] = rsp;
 694         rsp->rid = rid;
 695         rsp->vp_idx = vp_idx;
 696         rsp->hw = ha;
 697         /* Use alternate PCI bus number */
 698         if (MSB(rsp->rid))
 699                 options |= BIT_4;
 700         /* Use alternate PCI devfn */
 701         if (LSB(rsp->rid))
 702                 options |= BIT_5;
 703         rsp->options = options;
 704         rsp->ring_ptr = rsp->ring;
 705         rsp->ring_index = 0;
 706         rsp->id = que_id;
 707         mutex_unlock(&ha->vport_lock);
 708
 709         ret = qla25xx_request_irq(rsp);
 710         if (ret)
 711                 goto que_failed;
 712
 713         ret = qla25xx_init_rsp_que(base_vha, rsp, options);
 714         if (ret != QLA_SUCCESS) {
 715                 qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
 716                 mutex_lock(&ha->vport_lock);
 717                 clear_bit(que_id, ha->rsp_qid_map);
 718                 mutex_unlock(&ha->vport_lock);
 719                 goto que_failed;
 720         }
 721
 722         qla2x00_init_response_q_entries(rsp);
 723
 724         return rsp->id;
 725
 726 que_failed:
 727         qla25xx_free_rsp_que(base_vha, rsp);
 728         return 0;
 729 }
 730
 731 int
 732 qla25xx_create_queues(struct scsi_qla_host *vha, uint8_t qos)
 733 {
 734         uint16_t options = 0;
 735         uint8_t ret = 0;
 736         struct qla_hw_data *ha = vha->hw;
 737
 738         options |= BIT_1;
 739         ret = qla25xx_create_rsp_que(ha, options, vha->vp_idx, 0);
 740         if (!ret) {
 741                 qla_printk(KERN_WARNING, ha, "Response Que create failed\n");
 742                 return ret;
 743         } else
 744                 qla_printk(KERN_INFO, ha, "Response Que:%d created.\n", ret);
 745
 746         options = 0;
 747         if (qos & BIT_7)
 748                 options |= BIT_8;
 749         ret = qla25xx_create_req_que(ha, options, vha->vp_idx, 0, ret,
 750                                         qos & ~BIT_7);
 751         if (ret) {
 752                 vha->req_ques[0] = ret;
 753                 qla_printk(KERN_INFO, ha, "Request Que:%d created.\n", ret);
 754         } else
 755                 qla_printk(KERN_WARNING, ha, "Request Que create failed\n");
 756
 757         return ret;
 758 }