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/slab.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 vha->vp_idx = vp_id; 47 list_add_tail(&vha->list, &ha->vp_list); 48 mutex_unlock(&ha->vport_lock); 49 return vp_id; 50 } 51 52 void 53 qla24xx_deallocate_vp_id(scsi_qla_host_t *vha) 54 { 55 uint16_t vp_id; 56 struct qla_hw_data *ha = vha->hw; 57 58 mutex_lock(&ha->vport_lock); 59 vp_id = vha->vp_idx; 60 ha->num_vhosts--; 61 clear_bit(vp_id, ha->vp_idx_map); 62 list_del(&vha->list); 63 mutex_unlock(&ha->vport_lock); 64 } 65 66 static scsi_qla_host_t * 67 qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name) 68 { 69 scsi_qla_host_t *vha; 70 struct scsi_qla_host *tvha; 71 72 /* Locate matching device in database. */ 73 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) { 74 if (!memcmp(port_name, vha->port_name, WWN_SIZE)) 75 return vha; 76 } 77 return NULL; 78 } 79 80 /* 81 * qla2x00_mark_vp_devices_dead 82 * Updates fcport state when device goes offline. 83 * 84 * Input: 85 * ha = adapter block pointer. 86 * fcport = port structure pointer. 87 * 88 * Return: 89 * None. 90 * 91 * Context: 92 */ 93 static void 94 qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha) 95 { 96 fc_port_t *fcport; 97 98 list_for_each_entry(fcport, &vha->vp_fcports, list) { 99 DEBUG15(printk("scsi(%ld): Marking port dead, " 100 "loop_id=0x%04x :%x\n", 101 vha->host_no, fcport->loop_id, fcport->vp_idx)); 102 103 atomic_set(&fcport->state, FCS_DEVICE_DEAD); 104 qla2x00_mark_device_lost(vha, fcport, 0, 0); 105 atomic_set(&fcport->state, FCS_UNCONFIGURED); 106 } 107 } 108 109 int 110 qla24xx_disable_vp(scsi_qla_host_t *vha) 111 { 112 int ret; 113 114 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); 115 atomic_set(&vha->loop_state, LOOP_DOWN); 116 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 117 118 qla2x00_mark_vp_devices_dead(vha); 119 atomic_set(&vha->vp_state, VP_FAILED); 120 vha->flags.management_server_logged_in = 0; 121 if (ret == QLA_SUCCESS) { 122 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED); 123 } else { 124 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 125 return -1; 126 } 127 return 0; 128 } 129 130 int 131 qla24xx_enable_vp(scsi_qla_host_t *vha) 132 { 133 int ret; 134 struct qla_hw_data *ha = vha->hw; 135 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 136 137 /* Check if physical ha port is Up */ 138 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN || 139 atomic_read(&base_vha->loop_state) == LOOP_DEAD) { 140 vha->vp_err_state = VP_ERR_PORTDWN; 141 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN); 142 goto enable_failed; 143 } 144 145 /* Initialize the new vport unless it is a persistent port */ 146 mutex_lock(&ha->vport_lock); 147 ret = qla24xx_modify_vp_config(vha); 148 mutex_unlock(&ha->vport_lock); 149 150 if (ret != QLA_SUCCESS) { 151 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 152 goto enable_failed; 153 } 154 155 DEBUG15(qla_printk(KERN_INFO, ha, 156 "Virtual port with id: %d - Enabled\n", vha->vp_idx)); 157 return 0; 158 159 enable_failed: 160 DEBUG15(qla_printk(KERN_INFO, ha, 161 "Virtual port with id: %d - Disabled\n", vha->vp_idx)); 162 return 1; 163 } 164 165 static void 166 qla24xx_configure_vp(scsi_qla_host_t *vha) 167 { 168 struct fc_vport *fc_vport; 169 int ret; 170 171 fc_vport = vha->fc_vport; 172 173 DEBUG15(printk("scsi(%ld): %s: change request #3 for this host.\n", 174 vha->host_no, __func__)); 175 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx); 176 if (ret != QLA_SUCCESS) { 177 DEBUG15(qla_printk(KERN_ERR, vha->hw, "Failed to enable " 178 "receiving of RSCN requests: 0x%x\n", ret)); 179 return; 180 } else { 181 /* Corresponds to SCR enabled */ 182 clear_bit(VP_SCR_NEEDED, &vha->vp_flags); 183 } 184 185 vha->flags.online = 1; 186 if (qla24xx_configure_vhba(vha)) 187 return; 188 189 atomic_set(&vha->vp_state, VP_ACTIVE); 190 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE); 191 } 192 193 void 194 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb) 195 { 196 scsi_qla_host_t *vha, *tvha; 197 struct qla_hw_data *ha = rsp->hw; 198 int i = 0; 199 200 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) { 201 if (vha->vp_idx) { 202 switch (mb[0]) { 203 case MBA_LIP_OCCURRED: 204 case MBA_LOOP_UP: 205 case MBA_LOOP_DOWN: 206 case MBA_LIP_RESET: 207 case MBA_POINT_TO_POINT: 208 case MBA_CHG_IN_CONNECTION: 209 case MBA_PORT_UPDATE: 210 case MBA_RSCN_UPDATE: 211 DEBUG15(printk("scsi(%ld)%s: Async_event for" 212 " VP[%d], mb = 0x%x, vha=%p\n", 213 vha->host_no, __func__, i, *mb, vha)); 214 qla2x00_async_event(vha, rsp, mb); 215 break; 216 } 217 } 218 i++; 219 } 220 } 221 222 int 223 qla2x00_vp_abort_isp(scsi_qla_host_t *vha) 224 { 225 /* 226 * Physical port will do most of the abort and recovery work. We can 227 * just treat it as a loop down 228 */ 229 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 230 atomic_set(&vha->loop_state, LOOP_DOWN); 231 qla2x00_mark_all_devices_lost(vha, 0); 232 } else { 233 if (!atomic_read(&vha->loop_down_timer)) 234 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 235 } 236 237 /* 238 * To exclusively reset vport, we need to log it out first. Note: this 239 * control_vp can fail if ISP reset is already issued, this is 240 * expected, as the vp would be already logged out due to ISP reset. 241 */ 242 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) 243 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); 244 245 DEBUG15(printk("scsi(%ld): Scheduling enable of Vport %d...\n", 246 vha->host_no, vha->vp_idx)); 247 return qla24xx_enable_vp(vha); 248 } 249 250 static int 251 qla2x00_do_dpc_vp(scsi_qla_host_t *vha) 252 { 253 qla2x00_do_work(vha); 254 255 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) { 256 /* VP acquired. complete port configuration */ 257 qla24xx_configure_vp(vha); 258 return 0; 259 } 260 261 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) { 262 qla2x00_update_fcports(vha); 263 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags); 264 } 265 266 if ((test_and_clear_bit(RELOGIN_NEEDED, &vha->dpc_flags)) && 267 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) && 268 atomic_read(&vha->loop_state) != LOOP_DOWN) { 269 270 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n", 271 vha->host_no)); 272 qla2x00_relogin(vha); 273 274 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n", 275 vha->host_no)); 276 } 277 278 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) && 279 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) { 280 clear_bit(RESET_ACTIVE, &vha->dpc_flags); 281 } 282 283 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { 284 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) { 285 qla2x00_loop_resync(vha); 286 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags); 287 } 288 } 289 290 return 0; 291 } 292 293 void 294 qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha) 295 { 296 int ret; 297 struct qla_hw_data *ha = vha->hw; 298 scsi_qla_host_t *vp; 299 struct scsi_qla_host *tvp; 300 301 if (vha->vp_idx) 302 return; 303 if (list_empty(&ha->vp_list)) 304 return; 305 306 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags); 307 308 if (!(ha->current_topology & ISP_CFG_F)) 309 return; 310 311 list_for_each_entry_safe(vp, tvp, &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 = &qla2xxx_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; 386 387 /* 388 * To fix the issue of processing a parent's RSCN for the vport before 389 * its SCR is complete. 390 */ 391 set_bit(VP_SCR_NEEDED, &vha->vp_flags); 392 atomic_set(&vha->loop_state, LOOP_DOWN); 393 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 394 395 qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL); 396 397 vha->req = base_vha->req; 398 host->can_queue = base_vha->req->length + 128; 399 host->this_id = 255; 400 host->cmd_per_lun = 3; 401 host->max_cmd_len = MAX_CMDSZ; 402 host->max_channel = MAX_BUSES - 1; 403 host->max_lun = MAX_LUNS; 404 host->unique_id = host->host_no; 405 host->max_id = MAX_TARGETS_2200; 406 host->transportt = qla2xxx_transport_vport_template; 407 408 DEBUG15(printk("DEBUG: detect vport hba %ld at address = %p\n", 409 vha->host_no, vha)); 410 411 vha->flags.init_done = 1; 412 413 mutex_lock(&ha->vport_lock); 414 set_bit(vha->vp_idx, ha->vp_idx_map); 415 ha->cur_vport_count++; 416 mutex_unlock(&ha->vport_lock); 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) 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 /* Delete request queues */ 526 for (cnt = 1; cnt < ha->max_req_queues; cnt++) { 527 req = ha->req_q_map[cnt]; 528 if (req) { 529 ret = qla25xx_delete_req_que(vha, req); 530 if (ret != QLA_SUCCESS) { 531 qla_printk(KERN_WARNING, ha, 532 "Couldn't delete req que %d\n", 533 req->id); 534 return ret; 535 } 536 } 537 } 538 539 /* Delete response queues */ 540 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) { 541 rsp = ha->rsp_q_map[cnt]; 542 if (rsp) { 543 ret = qla25xx_delete_rsp_que(vha, rsp); 544 if (ret != QLA_SUCCESS) { 545 qla_printk(KERN_WARNING, ha, 546 "Couldn't delete rsp que %d\n", 547 rsp->id); 548 return ret; 549 } 550 } 551 } 552 return ret; 553 } 554 555 int 556 qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options, 557 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos) 558 { 559 int ret = 0; 560 struct req_que *req = NULL; 561 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 562 uint16_t que_id = 0; 563 device_reg_t __iomem *reg; 564 uint32_t cnt; 565 566 req = kzalloc(sizeof(struct req_que), GFP_KERNEL); 567 if (req == NULL) { 568 qla_printk(KERN_WARNING, ha, "could not allocate memory" 569 "for request que\n"); 570 goto failed; 571 } 572 573 req->length = REQUEST_ENTRY_CNT_24XX; 574 req->ring = dma_alloc_coherent(&ha->pdev->dev, 575 (req->length + 1) * sizeof(request_t), 576 &req->dma, GFP_KERNEL); 577 if (req->ring == NULL) { 578 qla_printk(KERN_WARNING, ha, 579 "Memory Allocation failed - request_ring\n"); 580 goto que_failed; 581 } 582 583 mutex_lock(&ha->vport_lock); 584 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues); 585 if (que_id >= ha->max_req_queues) { 586 mutex_unlock(&ha->vport_lock); 587 qla_printk(KERN_INFO, ha, "No resources to create " 588 "additional request queue\n"); 589 goto que_failed; 590 } 591 set_bit(que_id, ha->req_qid_map); 592 ha->req_q_map[que_id] = req; 593 req->rid = rid; 594 req->vp_idx = vp_idx; 595 req->qos = qos; 596 597 if (rsp_que < 0) 598 req->rsp = NULL; 599 else 600 req->rsp = ha->rsp_q_map[rsp_que]; 601 /* Use alternate PCI bus number */ 602 if (MSB(req->rid)) 603 options |= BIT_4; 604 /* Use alternate PCI devfn */ 605 if (LSB(req->rid)) 606 options |= BIT_5; 607 req->options = options; 608 609 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) 610 req->outstanding_cmds[cnt] = NULL; 611 req->current_outstanding_cmd = 1; 612 613 req->ring_ptr = req->ring; 614 req->ring_index = 0; 615 req->cnt = req->length; 616 req->id = que_id; 617 reg = ISP_QUE_REG(ha, que_id); 618 req->max_q_depth = ha->req_q_map[0]->max_q_depth; 619 mutex_unlock(&ha->vport_lock); 620 621 ret = qla25xx_init_req_que(base_vha, req); 622 if (ret != QLA_SUCCESS) { 623 qla_printk(KERN_WARNING, ha, "%s failed\n", __func__); 624 mutex_lock(&ha->vport_lock); 625 clear_bit(que_id, ha->req_qid_map); 626 mutex_unlock(&ha->vport_lock); 627 goto que_failed; 628 } 629 630 return req->id; 631 632 que_failed: 633 qla25xx_free_req_que(base_vha, req); 634 failed: 635 return 0; 636 } 637 638 static void qla_do_work(struct work_struct *work) 639 { 640 unsigned long flags; 641 struct rsp_que *rsp = container_of(work, struct rsp_que, q_work); 642 struct scsi_qla_host *vha; 643 struct qla_hw_data *ha = rsp->hw; 644 645 spin_lock_irqsave(&rsp->hw->hardware_lock, flags); 646 vha = pci_get_drvdata(ha->pdev); 647 qla24xx_process_response_queue(vha, rsp); 648 spin_unlock_irqrestore(&rsp->hw->hardware_lock, flags); 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, int req) 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 device_reg_t __iomem *reg; 661 662 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL); 663 if (rsp == NULL) { 664 qla_printk(KERN_WARNING, ha, "could not allocate memory for" 665 " response que\n"); 666 goto failed; 667 } 668 669 rsp->length = RESPONSE_ENTRY_CNT_MQ; 670 rsp->ring = dma_alloc_coherent(&ha->pdev->dev, 671 (rsp->length + 1) * sizeof(response_t), 672 &rsp->dma, GFP_KERNEL); 673 if (rsp->ring == NULL) { 674 qla_printk(KERN_WARNING, ha, 675 "Memory Allocation failed - response_ring\n"); 676 goto que_failed; 677 } 678 679 mutex_lock(&ha->vport_lock); 680 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues); 681 if (que_id >= ha->max_rsp_queues) { 682 mutex_unlock(&ha->vport_lock); 683 qla_printk(KERN_INFO, ha, "No resources to create " 684 "additional response queue\n"); 685 goto que_failed; 686 } 687 set_bit(que_id, ha->rsp_qid_map); 688 689 if (ha->flags.msix_enabled) 690 rsp->msix = &ha->msix_entries[que_id + 1]; 691 else 692 qla_printk(KERN_WARNING, ha, "msix not enabled\n"); 693 694 ha->rsp_q_map[que_id] = rsp; 695 rsp->rid = rid; 696 rsp->vp_idx = vp_idx; 697 rsp->hw = ha; 698 /* Use alternate PCI bus number */ 699 if (MSB(rsp->rid)) 700 options |= BIT_4; 701 /* Use alternate PCI devfn */ 702 if (LSB(rsp->rid)) 703 options |= BIT_5; 704 /* Enable MSIX handshake mode on for uncapable adapters */ 705 if (!IS_MSIX_NACK_CAPABLE(ha)) 706 options |= BIT_6; 707 708 rsp->options = options; 709 rsp->id = que_id; 710 reg = ISP_QUE_REG(ha, que_id); 711 rsp->rsp_q_in = ®->isp25mq.rsp_q_in; 712 rsp->rsp_q_out = ®->isp25mq.rsp_q_out; 713 mutex_unlock(&ha->vport_lock); 714 715 ret = qla25xx_request_irq(rsp); 716 if (ret) 717 goto que_failed; 718 719 ret = qla25xx_init_rsp_que(base_vha, rsp); 720 if (ret != QLA_SUCCESS) { 721 qla_printk(KERN_WARNING, ha, "%s failed\n", __func__); 722 mutex_lock(&ha->vport_lock); 723 clear_bit(que_id, ha->rsp_qid_map); 724 mutex_unlock(&ha->vport_lock); 725 goto que_failed; 726 } 727 if (req >= 0) 728 rsp->req = ha->req_q_map[req]; 729 else 730 rsp->req = NULL; 731 732 qla2x00_init_response_q_entries(rsp); 733 if (rsp->hw->wq) 734 INIT_WORK(&rsp->q_work, qla_do_work); 735 return rsp->id; 736 737 que_failed: 738 qla25xx_free_rsp_que(base_vha, rsp); 739 failed: 740 return 0; 741 } 742 743 int 744 qla25xx_create_queues(struct scsi_qla_host *vha, uint8_t qos) 745 { 746 uint16_t options = 0; 747 uint8_t ret = 0; 748 struct qla_hw_data *ha = vha->hw; 749 struct rsp_que *rsp; 750 751 options |= BIT_1; 752 ret = qla25xx_create_rsp_que(ha, options, vha->vp_idx, 0, -1); 753 if (!ret) { 754 qla_printk(KERN_WARNING, ha, "Response Que create failed\n"); 755 return ret; 756 } else 757 qla_printk(KERN_INFO, ha, "Response Que:%d created.\n", ret); 758 rsp = ha->rsp_q_map[ret]; 759 760 options = 0; 761 if (qos & BIT_7) 762 options |= BIT_8; 763 ret = qla25xx_create_req_que(ha, options, vha->vp_idx, 0, ret, 764 qos & ~BIT_7); 765 if (ret) { 766 vha->req = ha->req_q_map[ret]; 767 qla_printk(KERN_INFO, ha, "Request Que:%d created.\n", ret); 768 } else 769 qla_printk(KERN_WARNING, ha, "Request Que create failed\n"); 770 rsp->req = ha->req_q_map[ret]; 771 772 return ret; 773 } 774