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 = &qla2xxx_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 device_reg_t __iomem *reg; 588 589 req = kzalloc(sizeof(struct req_que), GFP_KERNEL); 590 if (req == NULL) { 591 qla_printk(KERN_WARNING, ha, "could not allocate memory" 592 "for request que\n"); 593 goto que_failed; 594 } 595 596 req->length = REQUEST_ENTRY_CNT_24XX; 597 req->ring = dma_alloc_coherent(&ha->pdev->dev, 598 (req->length + 1) * sizeof(request_t), 599 &req->dma, GFP_KERNEL); 600 if (req->ring == NULL) { 601 qla_printk(KERN_WARNING, ha, 602 "Memory Allocation failed - request_ring\n"); 603 goto que_failed; 604 } 605 606 mutex_lock(&ha->vport_lock); 607 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_queues); 608 if (que_id >= ha->max_queues) { 609 mutex_unlock(&ha->vport_lock); 610 qla_printk(KERN_INFO, ha, "No resources to create " 611 "additional request queue\n"); 612 goto que_failed; 613 } 614 set_bit(que_id, ha->req_qid_map); 615 ha->req_q_map[que_id] = req; 616 req->rid = rid; 617 req->vp_idx = vp_idx; 618 req->qos = qos; 619 620 if (ha->rsp_q_map[rsp_que]) { 621 req->rsp = ha->rsp_q_map[rsp_que]; 622 req->rsp->req = req; 623 } 624 /* Use alternate PCI bus number */ 625 if (MSB(req->rid)) 626 options |= BIT_4; 627 /* Use alternate PCI devfn */ 628 if (LSB(req->rid)) 629 options |= BIT_5; 630 req->options = options; 631 req->ring_ptr = req->ring; 632 req->ring_index = 0; 633 req->cnt = req->length; 634 req->id = que_id; 635 reg = ISP_QUE_REG(ha, que_id); 636 req->req_q_in = ®->isp25mq.req_q_in; 637 req->req_q_out = ®->isp25mq.req_q_out; 638 req->max_q_depth = ha->req_q_map[0]->max_q_depth; 639 mutex_unlock(&ha->vport_lock); 640 641 ret = qla25xx_init_req_que(base_vha, req); 642 if (ret != QLA_SUCCESS) { 643 qla_printk(KERN_WARNING, ha, "%s failed\n", __func__); 644 mutex_lock(&ha->vport_lock); 645 clear_bit(que_id, ha->req_qid_map); 646 mutex_unlock(&ha->vport_lock); 647 goto que_failed; 648 } 649 650 return req->id; 651 652 que_failed: 653 qla25xx_free_req_que(base_vha, req); 654 return 0; 655 } 656 657 /* create response queue */ 658 int 659 qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options, 660 uint8_t vp_idx, uint16_t rid) 661 { 662 int ret = 0; 663 struct rsp_que *rsp = NULL; 664 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 665 uint16_t que_id = 0; 666 device_reg_t __iomem *reg; 667 668 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL); 669 if (rsp == NULL) { 670 qla_printk(KERN_WARNING, ha, "could not allocate memory for" 671 " response que\n"); 672 goto que_failed; 673 } 674 675 rsp->length = RESPONSE_ENTRY_CNT_2300; 676 rsp->ring = dma_alloc_coherent(&ha->pdev->dev, 677 (rsp->length + 1) * sizeof(response_t), 678 &rsp->dma, GFP_KERNEL); 679 if (rsp->ring == NULL) { 680 qla_printk(KERN_WARNING, ha, 681 "Memory Allocation failed - response_ring\n"); 682 goto que_failed; 683 } 684 685 mutex_lock(&ha->vport_lock); 686 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_queues); 687 if (que_id >= ha->max_queues) { 688 mutex_unlock(&ha->vport_lock); 689 qla_printk(KERN_INFO, ha, "No resources to create " 690 "additional response queue\n"); 691 goto que_failed; 692 } 693 set_bit(que_id, ha->rsp_qid_map); 694 695 if (ha->flags.msix_enabled) 696 rsp->msix = &ha->msix_entries[que_id + 1]; 697 else 698 qla_printk(KERN_WARNING, ha, "msix not enabled\n"); 699 700 ha->rsp_q_map[que_id] = rsp; 701 rsp->rid = rid; 702 rsp->vp_idx = vp_idx; 703 rsp->hw = ha; 704 /* Use alternate PCI bus number */ 705 if (MSB(rsp->rid)) 706 options |= BIT_4; 707 /* Use alternate PCI devfn */ 708 if (LSB(rsp->rid)) 709 options |= BIT_5; 710 rsp->options = options; 711 rsp->ring_ptr = rsp->ring; 712 rsp->ring_index = 0; 713 rsp->id = que_id; 714 reg = ISP_QUE_REG(ha, que_id); 715 rsp->rsp_q_in = ®->isp25mq.rsp_q_in; 716 rsp->rsp_q_out = ®->isp25mq.rsp_q_out; 717 mutex_unlock(&ha->vport_lock); 718 719 ret = qla25xx_request_irq(rsp); 720 if (ret) 721 goto que_failed; 722 723 ret = qla25xx_init_rsp_que(base_vha, rsp); 724 if (ret != QLA_SUCCESS) { 725 qla_printk(KERN_WARNING, ha, "%s failed\n", __func__); 726 mutex_lock(&ha->vport_lock); 727 clear_bit(que_id, ha->rsp_qid_map); 728 mutex_unlock(&ha->vport_lock); 729 goto que_failed; 730 } 731 732 qla2x00_init_response_q_entries(rsp); 733 734 return rsp->id; 735 736 que_failed: 737 qla25xx_free_rsp_que(base_vha, rsp); 738 return 0; 739 } 740 741 int 742 qla25xx_create_queues(struct scsi_qla_host *vha, uint8_t qos) 743 { 744 uint16_t options = 0; 745 uint8_t ret = 0; 746 struct qla_hw_data *ha = vha->hw; 747 748 options |= BIT_1; 749 ret = qla25xx_create_rsp_que(ha, options, vha->vp_idx, 0); 750 if (!ret) { 751 qla_printk(KERN_WARNING, ha, "Response Que create failed\n"); 752 return ret; 753 } else 754 qla_printk(KERN_INFO, ha, "Response Que:%d created.\n", ret); 755 756 options = 0; 757 if (qos & BIT_7) 758 options |= BIT_8; 759 ret = qla25xx_create_req_que(ha, options, vha->vp_idx, 0, ret, 760 qos & ~BIT_7); 761 if (ret) { 762 vha->req_ques[0] = ret; 763 qla_printk(KERN_INFO, ha, "Request Que:%d created.\n", ret); 764 } else 765 qla_printk(KERN_WARNING, ha, "Request Que create failed\n"); 766 767 return ret; 768 } 769