1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * QLogic Fibre Channel HBA Driver 4 * Copyright (c) 2003-2014 QLogic Corporation 5 */ 6 #include "qla_def.h" 7 #include "qla_gbl.h" 8 #include "qla_target.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 unsigned long flags; 34 35 /* Find an empty slot and assign an vp_id */ 36 mutex_lock(&ha->vport_lock); 37 vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1); 38 if (vp_id > ha->max_npiv_vports) { 39 ql_dbg(ql_dbg_vport, vha, 0xa000, 40 "vp_id %d is bigger than max-supported %d.\n", 41 vp_id, ha->max_npiv_vports); 42 mutex_unlock(&ha->vport_lock); 43 return vp_id; 44 } 45 46 set_bit(vp_id, ha->vp_idx_map); 47 ha->num_vhosts++; 48 vha->vp_idx = vp_id; 49 50 spin_lock_irqsave(&ha->vport_slock, flags); 51 list_add_tail(&vha->list, &ha->vp_list); 52 spin_unlock_irqrestore(&ha->vport_slock, flags); 53 54 spin_lock_irqsave(&ha->hardware_lock, flags); 55 qlt_update_vp_map(vha, SET_VP_IDX); 56 spin_unlock_irqrestore(&ha->hardware_lock, flags); 57 58 mutex_unlock(&ha->vport_lock); 59 return vp_id; 60 } 61 62 void 63 qla24xx_deallocate_vp_id(scsi_qla_host_t *vha) 64 { 65 uint16_t vp_id; 66 struct qla_hw_data *ha = vha->hw; 67 unsigned long flags = 0; 68 u32 i, bailout; 69 70 mutex_lock(&ha->vport_lock); 71 /* 72 * Wait for all pending activities to finish before removing vport from 73 * the list. 74 * Lock needs to be held for safe removal from the list (it 75 * ensures no active vp_list traversal while the vport is removed 76 * from the queue) 77 */ 78 bailout = 0; 79 for (i = 0; i < 500; i++) { 80 spin_lock_irqsave(&ha->vport_slock, flags); 81 if (atomic_read(&vha->vref_count) == 0) { 82 list_del(&vha->list); 83 qlt_update_vp_map(vha, RESET_VP_IDX); 84 bailout = 1; 85 } 86 spin_unlock_irqrestore(&ha->vport_slock, flags); 87 88 if (bailout) 89 break; 90 else 91 msleep(20); 92 } 93 if (!bailout) { 94 ql_log(ql_log_info, vha, 0xfffa, 95 "vha->vref_count=%u timeout\n", vha->vref_count.counter); 96 spin_lock_irqsave(&ha->vport_slock, flags); 97 list_del(&vha->list); 98 qlt_update_vp_map(vha, RESET_VP_IDX); 99 spin_unlock_irqrestore(&ha->vport_slock, flags); 100 } 101 102 vp_id = vha->vp_idx; 103 ha->num_vhosts--; 104 clear_bit(vp_id, ha->vp_idx_map); 105 106 mutex_unlock(&ha->vport_lock); 107 } 108 109 static scsi_qla_host_t * 110 qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name) 111 { 112 scsi_qla_host_t *vha; 113 struct scsi_qla_host *tvha; 114 unsigned long flags; 115 116 spin_lock_irqsave(&ha->vport_slock, flags); 117 /* Locate matching device in database. */ 118 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) { 119 if (!memcmp(port_name, vha->port_name, WWN_SIZE)) { 120 spin_unlock_irqrestore(&ha->vport_slock, flags); 121 return vha; 122 } 123 } 124 spin_unlock_irqrestore(&ha->vport_slock, flags); 125 return NULL; 126 } 127 128 /* 129 * qla2x00_mark_vp_devices_dead 130 * Updates fcport state when device goes offline. 131 * 132 * Input: 133 * ha = adapter block pointer. 134 * fcport = port structure pointer. 135 * 136 * Return: 137 * None. 138 * 139 * Context: 140 */ 141 static void 142 qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha) 143 { 144 /* 145 * !!! NOTE !!! 146 * This function, if called in contexts other than vp create, disable 147 * or delete, please make sure this is synchronized with the 148 * delete thread. 149 */ 150 fc_port_t *fcport; 151 152 list_for_each_entry(fcport, &vha->vp_fcports, list) { 153 ql_dbg(ql_dbg_vport, vha, 0xa001, 154 "Marking port dead, loop_id=0x%04x : %x.\n", 155 fcport->loop_id, fcport->vha->vp_idx); 156 157 qla2x00_mark_device_lost(vha, fcport, 0); 158 qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED); 159 } 160 } 161 162 int 163 qla24xx_disable_vp(scsi_qla_host_t *vha) 164 { 165 unsigned long flags; 166 int ret = QLA_SUCCESS; 167 fc_port_t *fcport; 168 169 if (vha->hw->flags.edif_enabled) { 170 if (DBELL_ACTIVE(vha)) 171 qla2x00_post_aen_work(vha, FCH_EVT_VENDOR_UNIQUE, 172 FCH_EVT_VENDOR_UNIQUE_VPORT_DOWN); 173 /* delete sessions and flush sa_indexes */ 174 qla2x00_wait_for_sess_deletion(vha); 175 } 176 177 if (vha->hw->flags.fw_started) 178 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); 179 180 atomic_set(&vha->loop_state, LOOP_DOWN); 181 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 182 list_for_each_entry(fcport, &vha->vp_fcports, list) 183 fcport->logout_on_delete = 0; 184 185 if (!vha->hw->flags.edif_enabled) 186 qla2x00_wait_for_sess_deletion(vha); 187 188 /* Remove port id from vp target map */ 189 spin_lock_irqsave(&vha->hw->hardware_lock, flags); 190 qlt_update_vp_map(vha, RESET_AL_PA); 191 spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); 192 193 qla2x00_mark_vp_devices_dead(vha); 194 atomic_set(&vha->vp_state, VP_FAILED); 195 vha->flags.management_server_logged_in = 0; 196 if (ret == QLA_SUCCESS) { 197 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED); 198 } else { 199 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 200 return -1; 201 } 202 return 0; 203 } 204 205 int 206 qla24xx_enable_vp(scsi_qla_host_t *vha) 207 { 208 int ret; 209 struct qla_hw_data *ha = vha->hw; 210 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 211 212 /* Check if physical ha port is Up */ 213 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN || 214 atomic_read(&base_vha->loop_state) == LOOP_DEAD || 215 !(ha->current_topology & ISP_CFG_F)) { 216 vha->vp_err_state = VP_ERR_PORTDWN; 217 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN); 218 ql_dbg(ql_dbg_taskm, vha, 0x800b, 219 "%s skip enable. loop_state %x topo %x\n", 220 __func__, base_vha->loop_state.counter, 221 ha->current_topology); 222 223 goto enable_failed; 224 } 225 226 /* Initialize the new vport unless it is a persistent port */ 227 mutex_lock(&ha->vport_lock); 228 ret = qla24xx_modify_vp_config(vha); 229 mutex_unlock(&ha->vport_lock); 230 231 if (ret != QLA_SUCCESS) { 232 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 233 goto enable_failed; 234 } 235 236 ql_dbg(ql_dbg_taskm, vha, 0x801a, 237 "Virtual port with id: %d - Enabled.\n", vha->vp_idx); 238 return 0; 239 240 enable_failed: 241 ql_dbg(ql_dbg_taskm, vha, 0x801b, 242 "Virtual port with id: %d - Disabled.\n", vha->vp_idx); 243 return 1; 244 } 245 246 static void 247 qla24xx_configure_vp(scsi_qla_host_t *vha) 248 { 249 struct fc_vport *fc_vport; 250 int ret; 251 252 fc_vport = vha->fc_vport; 253 254 ql_dbg(ql_dbg_vport, vha, 0xa002, 255 "%s: change request #3.\n", __func__); 256 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx); 257 if (ret != QLA_SUCCESS) { 258 ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable " 259 "receiving of RSCN requests: 0x%x.\n", ret); 260 return; 261 } else { 262 /* Corresponds to SCR enabled */ 263 clear_bit(VP_SCR_NEEDED, &vha->vp_flags); 264 } 265 266 vha->flags.online = 1; 267 if (qla24xx_configure_vhba(vha)) 268 return; 269 270 atomic_set(&vha->vp_state, VP_ACTIVE); 271 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE); 272 } 273 274 void 275 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb) 276 { 277 scsi_qla_host_t *vha, *tvp; 278 struct qla_hw_data *ha = rsp->hw; 279 int i = 0; 280 unsigned long flags; 281 282 spin_lock_irqsave(&ha->vport_slock, flags); 283 list_for_each_entry_safe(vha, tvp, &ha->vp_list, list) { 284 if (vha->vp_idx) { 285 if (test_bit(VPORT_DELETE, &vha->dpc_flags)) 286 continue; 287 288 atomic_inc(&vha->vref_count); 289 spin_unlock_irqrestore(&ha->vport_slock, flags); 290 291 switch (mb[0]) { 292 case MBA_LIP_OCCURRED: 293 case MBA_LOOP_UP: 294 case MBA_LOOP_DOWN: 295 case MBA_LIP_RESET: 296 case MBA_POINT_TO_POINT: 297 case MBA_CHG_IN_CONNECTION: 298 ql_dbg(ql_dbg_async, vha, 0x5024, 299 "Async_event for VP[%d], mb=0x%x vha=%p.\n", 300 i, *mb, vha); 301 qla2x00_async_event(vha, rsp, mb); 302 break; 303 case MBA_PORT_UPDATE: 304 case MBA_RSCN_UPDATE: 305 if ((mb[3] & 0xff) == vha->vp_idx) { 306 ql_dbg(ql_dbg_async, vha, 0x5024, 307 "Async_event for VP[%d], mb=0x%x vha=%p\n", 308 i, *mb, vha); 309 qla2x00_async_event(vha, rsp, mb); 310 } 311 break; 312 } 313 314 spin_lock_irqsave(&ha->vport_slock, flags); 315 atomic_dec(&vha->vref_count); 316 wake_up(&vha->vref_waitq); 317 } 318 i++; 319 } 320 spin_unlock_irqrestore(&ha->vport_slock, flags); 321 } 322 323 int 324 qla2x00_vp_abort_isp(scsi_qla_host_t *vha) 325 { 326 fc_port_t *fcport; 327 328 /* 329 * To exclusively reset vport, we need to log it out first. 330 * Note: This control_vp can fail if ISP reset is already 331 * issued, this is expected, as the vp would be already 332 * logged out due to ISP reset. 333 */ 334 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { 335 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); 336 list_for_each_entry(fcport, &vha->vp_fcports, list) 337 fcport->logout_on_delete = 0; 338 } 339 340 /* 341 * Physical port will do most of the abort and recovery work. We can 342 * just treat it as a loop down 343 */ 344 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 345 atomic_set(&vha->loop_state, LOOP_DOWN); 346 qla2x00_mark_all_devices_lost(vha); 347 } else { 348 if (!atomic_read(&vha->loop_down_timer)) 349 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 350 } 351 352 ql_dbg(ql_dbg_taskm, vha, 0x801d, 353 "Scheduling enable of Vport %d.\n", vha->vp_idx); 354 355 return qla24xx_enable_vp(vha); 356 } 357 358 static int 359 qla2x00_do_dpc_vp(scsi_qla_host_t *vha) 360 { 361 struct qla_hw_data *ha = vha->hw; 362 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 363 364 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012, 365 "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags); 366 367 /* Check if Fw is ready to configure VP first */ 368 if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) { 369 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) { 370 /* VP acquired. complete port configuration */ 371 ql_dbg(ql_dbg_dpc, vha, 0x4014, 372 "Configure VP scheduled.\n"); 373 qla24xx_configure_vp(vha); 374 ql_dbg(ql_dbg_dpc, vha, 0x4015, 375 "Configure VP end.\n"); 376 return 0; 377 } 378 } 379 380 if (test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags)) { 381 if (atomic_read(&vha->loop_state) == LOOP_READY) { 382 qla24xx_process_purex_list(&vha->purex_list); 383 clear_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags); 384 } 385 } 386 387 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) { 388 ql_dbg(ql_dbg_dpc, vha, 0x4016, 389 "FCPort update scheduled.\n"); 390 qla2x00_update_fcports(vha); 391 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags); 392 ql_dbg(ql_dbg_dpc, vha, 0x4017, 393 "FCPort update end.\n"); 394 } 395 396 if (test_bit(RELOGIN_NEEDED, &vha->dpc_flags) && 397 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) && 398 atomic_read(&vha->loop_state) != LOOP_DOWN) { 399 400 if (!vha->relogin_jif || 401 time_after_eq(jiffies, vha->relogin_jif)) { 402 vha->relogin_jif = jiffies + HZ; 403 clear_bit(RELOGIN_NEEDED, &vha->dpc_flags); 404 405 ql_dbg(ql_dbg_dpc, vha, 0x4018, 406 "Relogin needed scheduled.\n"); 407 qla24xx_post_relogin_work(vha); 408 } 409 } 410 411 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) && 412 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) { 413 clear_bit(RESET_ACTIVE, &vha->dpc_flags); 414 } 415 416 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { 417 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) { 418 ql_dbg(ql_dbg_dpc, vha, 0x401a, 419 "Loop resync scheduled.\n"); 420 qla2x00_loop_resync(vha); 421 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags); 422 ql_dbg(ql_dbg_dpc, vha, 0x401b, 423 "Loop resync end.\n"); 424 } 425 } 426 427 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c, 428 "Exiting %s.\n", __func__); 429 return 0; 430 } 431 432 void 433 qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha) 434 { 435 struct qla_hw_data *ha = vha->hw; 436 scsi_qla_host_t *vp, *tvp; 437 unsigned long flags = 0; 438 439 if (vha->vp_idx) 440 return; 441 if (list_empty(&ha->vp_list)) 442 return; 443 444 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags); 445 446 if (!(ha->current_topology & ISP_CFG_F)) 447 return; 448 449 spin_lock_irqsave(&ha->vport_slock, flags); 450 list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) { 451 if (vp->vp_idx) { 452 atomic_inc(&vp->vref_count); 453 spin_unlock_irqrestore(&ha->vport_slock, flags); 454 455 qla2x00_do_dpc_vp(vp); 456 457 spin_lock_irqsave(&ha->vport_slock, flags); 458 atomic_dec(&vp->vref_count); 459 } 460 } 461 spin_unlock_irqrestore(&ha->vport_slock, flags); 462 } 463 464 int 465 qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport) 466 { 467 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost); 468 struct qla_hw_data *ha = base_vha->hw; 469 scsi_qla_host_t *vha; 470 uint8_t port_name[WWN_SIZE]; 471 472 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR) 473 return VPCERR_UNSUPPORTED; 474 475 /* Check up the F/W and H/W support NPIV */ 476 if (!ha->flags.npiv_supported) 477 return VPCERR_UNSUPPORTED; 478 479 /* Check up whether npiv supported switch presented */ 480 if (!(ha->switch_cap & FLOGI_MID_SUPPORT)) 481 return VPCERR_NO_FABRIC_SUPP; 482 483 /* Check up unique WWPN */ 484 u64_to_wwn(fc_vport->port_name, port_name); 485 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE)) 486 return VPCERR_BAD_WWN; 487 vha = qla24xx_find_vhost_by_name(ha, port_name); 488 if (vha) 489 return VPCERR_BAD_WWN; 490 491 /* Check up max-npiv-supports */ 492 if (ha->num_vhosts > ha->max_npiv_vports) { 493 ql_dbg(ql_dbg_vport, vha, 0xa004, 494 "num_vhosts %ud is bigger " 495 "than max_npiv_vports %ud.\n", 496 ha->num_vhosts, ha->max_npiv_vports); 497 return VPCERR_UNSUPPORTED; 498 } 499 return 0; 500 } 501 502 scsi_qla_host_t * 503 qla24xx_create_vhost(struct fc_vport *fc_vport) 504 { 505 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost); 506 struct qla_hw_data *ha = base_vha->hw; 507 scsi_qla_host_t *vha; 508 struct scsi_host_template *sht = &qla2xxx_driver_template; 509 struct Scsi_Host *host; 510 511 vha = qla2x00_create_host(sht, ha); 512 if (!vha) { 513 ql_log(ql_log_warn, vha, 0xa005, 514 "scsi_host_alloc() failed for vport.\n"); 515 return(NULL); 516 } 517 518 host = vha->host; 519 fc_vport->dd_data = vha; 520 /* New host info */ 521 u64_to_wwn(fc_vport->node_name, vha->node_name); 522 u64_to_wwn(fc_vport->port_name, vha->port_name); 523 524 vha->fc_vport = fc_vport; 525 vha->device_flags = 0; 526 vha->vp_idx = qla24xx_allocate_vp_id(vha); 527 if (vha->vp_idx > ha->max_npiv_vports) { 528 ql_dbg(ql_dbg_vport, vha, 0xa006, 529 "Couldn't allocate vp_id.\n"); 530 goto create_vhost_failed; 531 } 532 vha->mgmt_svr_loop_id = qla2x00_reserve_mgmt_server_loop_id(vha); 533 534 vha->dpc_flags = 0L; 535 ha->dpc_active = 0; 536 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 537 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 538 539 /* 540 * To fix the issue of processing a parent's RSCN for the vport before 541 * its SCR is complete. 542 */ 543 set_bit(VP_SCR_NEEDED, &vha->vp_flags); 544 atomic_set(&vha->loop_state, LOOP_DOWN); 545 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 546 547 qla2x00_start_timer(vha, WATCH_INTERVAL); 548 549 vha->req = base_vha->req; 550 vha->flags.nvme_enabled = base_vha->flags.nvme_enabled; 551 host->can_queue = base_vha->req->length + 128; 552 host->cmd_per_lun = 3; 553 if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) 554 host->max_cmd_len = 32; 555 else 556 host->max_cmd_len = MAX_CMDSZ; 557 host->max_channel = MAX_BUSES - 1; 558 host->max_lun = ql2xmaxlun; 559 host->unique_id = host->host_no; 560 host->max_id = ha->max_fibre_devices; 561 host->transportt = qla2xxx_transport_vport_template; 562 563 ql_dbg(ql_dbg_vport, vha, 0xa007, 564 "Detect vport hba %ld at address = %p.\n", 565 vha->host_no, vha); 566 567 vha->flags.init_done = 1; 568 569 mutex_lock(&ha->vport_lock); 570 set_bit(vha->vp_idx, ha->vp_idx_map); 571 ha->cur_vport_count++; 572 mutex_unlock(&ha->vport_lock); 573 574 return vha; 575 576 create_vhost_failed: 577 return NULL; 578 } 579 580 static void 581 qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req) 582 { 583 struct qla_hw_data *ha = vha->hw; 584 uint16_t que_id = req->id; 585 586 dma_free_coherent(&ha->pdev->dev, (req->length + 1) * 587 sizeof(request_t), req->ring, req->dma); 588 req->ring = NULL; 589 req->dma = 0; 590 if (que_id) { 591 ha->req_q_map[que_id] = NULL; 592 mutex_lock(&ha->vport_lock); 593 clear_bit(que_id, ha->req_qid_map); 594 mutex_unlock(&ha->vport_lock); 595 } 596 kfree(req->outstanding_cmds); 597 kfree(req); 598 } 599 600 static void 601 qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) 602 { 603 struct qla_hw_data *ha = vha->hw; 604 uint16_t que_id = rsp->id; 605 606 if (rsp->msix && rsp->msix->have_irq) { 607 free_irq(rsp->msix->vector, rsp->msix->handle); 608 rsp->msix->have_irq = 0; 609 rsp->msix->in_use = 0; 610 rsp->msix->handle = NULL; 611 } 612 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) * 613 sizeof(response_t), rsp->ring, rsp->dma); 614 rsp->ring = NULL; 615 rsp->dma = 0; 616 if (que_id) { 617 ha->rsp_q_map[que_id] = NULL; 618 mutex_lock(&ha->vport_lock); 619 clear_bit(que_id, ha->rsp_qid_map); 620 mutex_unlock(&ha->vport_lock); 621 } 622 kfree(rsp); 623 } 624 625 int 626 qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req) 627 { 628 int ret = QLA_SUCCESS; 629 630 if (req && vha->flags.qpairs_req_created) { 631 req->options |= BIT_0; 632 ret = qla25xx_init_req_que(vha, req); 633 if (ret != QLA_SUCCESS) 634 return QLA_FUNCTION_FAILED; 635 636 qla25xx_free_req_que(vha, req); 637 } 638 639 return ret; 640 } 641 642 int 643 qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) 644 { 645 int ret = QLA_SUCCESS; 646 647 if (rsp && vha->flags.qpairs_rsp_created) { 648 rsp->options |= BIT_0; 649 ret = qla25xx_init_rsp_que(vha, rsp); 650 if (ret != QLA_SUCCESS) 651 return QLA_FUNCTION_FAILED; 652 653 qla25xx_free_rsp_que(vha, rsp); 654 } 655 656 return ret; 657 } 658 659 /* Delete all queues for a given vhost */ 660 int 661 qla25xx_delete_queues(struct scsi_qla_host *vha) 662 { 663 int cnt, ret = 0; 664 struct req_que *req = NULL; 665 struct rsp_que *rsp = NULL; 666 struct qla_hw_data *ha = vha->hw; 667 struct qla_qpair *qpair, *tqpair; 668 669 if (ql2xmqsupport || ql2xnvmeenable) { 670 list_for_each_entry_safe(qpair, tqpair, &vha->qp_list, 671 qp_list_elem) 672 qla2xxx_delete_qpair(vha, qpair); 673 } else { 674 /* Delete request queues */ 675 for (cnt = 1; cnt < ha->max_req_queues; cnt++) { 676 req = ha->req_q_map[cnt]; 677 if (req && test_bit(cnt, ha->req_qid_map)) { 678 ret = qla25xx_delete_req_que(vha, req); 679 if (ret != QLA_SUCCESS) { 680 ql_log(ql_log_warn, vha, 0x00ea, 681 "Couldn't delete req que %d.\n", 682 req->id); 683 return ret; 684 } 685 } 686 } 687 688 /* Delete response queues */ 689 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) { 690 rsp = ha->rsp_q_map[cnt]; 691 if (rsp && test_bit(cnt, ha->rsp_qid_map)) { 692 ret = qla25xx_delete_rsp_que(vha, rsp); 693 if (ret != QLA_SUCCESS) { 694 ql_log(ql_log_warn, vha, 0x00eb, 695 "Couldn't delete rsp que %d.\n", 696 rsp->id); 697 return ret; 698 } 699 } 700 } 701 } 702 703 return ret; 704 } 705 706 int 707 qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options, 708 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos, bool startqp) 709 { 710 int ret = 0; 711 struct req_que *req = NULL; 712 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 713 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 714 uint16_t que_id = 0; 715 device_reg_t *reg; 716 uint32_t cnt; 717 718 req = kzalloc(sizeof(struct req_que), GFP_KERNEL); 719 if (req == NULL) { 720 ql_log(ql_log_fatal, base_vha, 0x00d9, 721 "Failed to allocate memory for request queue.\n"); 722 goto failed; 723 } 724 725 req->length = REQUEST_ENTRY_CNT_24XX; 726 req->ring = dma_alloc_coherent(&ha->pdev->dev, 727 (req->length + 1) * sizeof(request_t), 728 &req->dma, GFP_KERNEL); 729 if (req->ring == NULL) { 730 ql_log(ql_log_fatal, base_vha, 0x00da, 731 "Failed to allocate memory for request_ring.\n"); 732 goto que_failed; 733 } 734 735 ret = qla2x00_alloc_outstanding_cmds(ha, req); 736 if (ret != QLA_SUCCESS) 737 goto que_failed; 738 739 mutex_lock(&ha->mq_lock); 740 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues); 741 if (que_id >= ha->max_req_queues) { 742 mutex_unlock(&ha->mq_lock); 743 ql_log(ql_log_warn, base_vha, 0x00db, 744 "No resources to create additional request queue.\n"); 745 goto que_failed; 746 } 747 set_bit(que_id, ha->req_qid_map); 748 ha->req_q_map[que_id] = req; 749 req->rid = rid; 750 req->vp_idx = vp_idx; 751 req->qos = qos; 752 753 ql_dbg(ql_dbg_multiq, base_vha, 0xc002, 754 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n", 755 que_id, req->rid, req->vp_idx, req->qos); 756 ql_dbg(ql_dbg_init, base_vha, 0x00dc, 757 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n", 758 que_id, req->rid, req->vp_idx, req->qos); 759 if (rsp_que < 0) 760 req->rsp = NULL; 761 else 762 req->rsp = ha->rsp_q_map[rsp_que]; 763 /* Use alternate PCI bus number */ 764 if (MSB(req->rid)) 765 options |= BIT_4; 766 /* Use alternate PCI devfn */ 767 if (LSB(req->rid)) 768 options |= BIT_5; 769 req->options = options; 770 771 ql_dbg(ql_dbg_multiq, base_vha, 0xc003, 772 "options=0x%x.\n", req->options); 773 ql_dbg(ql_dbg_init, base_vha, 0x00dd, 774 "options=0x%x.\n", req->options); 775 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) 776 req->outstanding_cmds[cnt] = NULL; 777 req->current_outstanding_cmd = 1; 778 779 req->ring_ptr = req->ring; 780 req->ring_index = 0; 781 req->cnt = req->length; 782 req->id = que_id; 783 reg = ISP_QUE_REG(ha, que_id); 784 req->req_q_in = ®->isp25mq.req_q_in; 785 req->req_q_out = ®->isp25mq.req_q_out; 786 req->max_q_depth = ha->req_q_map[0]->max_q_depth; 787 req->out_ptr = (uint16_t *)(req->ring + req->length); 788 mutex_unlock(&ha->mq_lock); 789 ql_dbg(ql_dbg_multiq, base_vha, 0xc004, 790 "ring_ptr=%p ring_index=%d, " 791 "cnt=%d id=%d max_q_depth=%d.\n", 792 req->ring_ptr, req->ring_index, 793 req->cnt, req->id, req->max_q_depth); 794 ql_dbg(ql_dbg_init, base_vha, 0x00de, 795 "ring_ptr=%p ring_index=%d, " 796 "cnt=%d id=%d max_q_depth=%d.\n", 797 req->ring_ptr, req->ring_index, req->cnt, 798 req->id, req->max_q_depth); 799 800 if (startqp) { 801 ret = qla25xx_init_req_que(base_vha, req); 802 if (ret != QLA_SUCCESS) { 803 ql_log(ql_log_fatal, base_vha, 0x00df, 804 "%s failed.\n", __func__); 805 mutex_lock(&ha->mq_lock); 806 clear_bit(que_id, ha->req_qid_map); 807 mutex_unlock(&ha->mq_lock); 808 goto que_failed; 809 } 810 vha->flags.qpairs_req_created = 1; 811 } 812 813 return req->id; 814 815 que_failed: 816 qla25xx_free_req_que(base_vha, req); 817 failed: 818 return 0; 819 } 820 821 static void qla_do_work(struct work_struct *work) 822 { 823 unsigned long flags; 824 struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work); 825 struct scsi_qla_host *vha = qpair->vha; 826 827 spin_lock_irqsave(&qpair->qp_lock, flags); 828 qla24xx_process_response_queue(vha, qpair->rsp); 829 spin_unlock_irqrestore(&qpair->qp_lock, flags); 830 831 } 832 833 /* create response queue */ 834 int 835 qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options, 836 uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair, bool startqp) 837 { 838 int ret = 0; 839 struct rsp_que *rsp = NULL; 840 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 841 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 842 uint16_t que_id = 0; 843 device_reg_t *reg; 844 845 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL); 846 if (rsp == NULL) { 847 ql_log(ql_log_warn, base_vha, 0x0066, 848 "Failed to allocate memory for response queue.\n"); 849 goto failed; 850 } 851 852 rsp->length = RESPONSE_ENTRY_CNT_MQ; 853 rsp->ring = dma_alloc_coherent(&ha->pdev->dev, 854 (rsp->length + 1) * sizeof(response_t), 855 &rsp->dma, GFP_KERNEL); 856 if (rsp->ring == NULL) { 857 ql_log(ql_log_warn, base_vha, 0x00e1, 858 "Failed to allocate memory for response ring.\n"); 859 goto que_failed; 860 } 861 862 mutex_lock(&ha->mq_lock); 863 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues); 864 if (que_id >= ha->max_rsp_queues) { 865 mutex_unlock(&ha->mq_lock); 866 ql_log(ql_log_warn, base_vha, 0x00e2, 867 "No resources to create additional request queue.\n"); 868 goto que_failed; 869 } 870 set_bit(que_id, ha->rsp_qid_map); 871 872 rsp->msix = qpair->msix; 873 874 ha->rsp_q_map[que_id] = rsp; 875 rsp->rid = rid; 876 rsp->vp_idx = vp_idx; 877 rsp->hw = ha; 878 ql_dbg(ql_dbg_init, base_vha, 0x00e4, 879 "rsp queue_id=%d rid=%d vp_idx=%d hw=%p.\n", 880 que_id, rsp->rid, rsp->vp_idx, rsp->hw); 881 /* Use alternate PCI bus number */ 882 if (MSB(rsp->rid)) 883 options |= BIT_4; 884 /* Use alternate PCI devfn */ 885 if (LSB(rsp->rid)) 886 options |= BIT_5; 887 /* Enable MSIX handshake mode on for uncapable adapters */ 888 if (!IS_MSIX_NACK_CAPABLE(ha)) 889 options |= BIT_6; 890 891 /* Set option to indicate response queue creation */ 892 options |= BIT_1; 893 894 rsp->options = options; 895 rsp->id = que_id; 896 reg = ISP_QUE_REG(ha, que_id); 897 rsp->rsp_q_in = ®->isp25mq.rsp_q_in; 898 rsp->rsp_q_out = ®->isp25mq.rsp_q_out; 899 rsp->in_ptr = (uint16_t *)(rsp->ring + rsp->length); 900 mutex_unlock(&ha->mq_lock); 901 ql_dbg(ql_dbg_multiq, base_vha, 0xc00b, 902 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n", 903 rsp->options, rsp->id, rsp->rsp_q_in, 904 rsp->rsp_q_out); 905 ql_dbg(ql_dbg_init, base_vha, 0x00e5, 906 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n", 907 rsp->options, rsp->id, rsp->rsp_q_in, 908 rsp->rsp_q_out); 909 910 ret = qla25xx_request_irq(ha, qpair, qpair->msix, 911 ha->flags.disable_msix_handshake ? 912 QLA_MSIX_QPAIR_MULTIQ_RSP_Q : QLA_MSIX_QPAIR_MULTIQ_RSP_Q_HS); 913 if (ret) 914 goto que_failed; 915 916 if (startqp) { 917 ret = qla25xx_init_rsp_que(base_vha, rsp); 918 if (ret != QLA_SUCCESS) { 919 ql_log(ql_log_fatal, base_vha, 0x00e7, 920 "%s failed.\n", __func__); 921 mutex_lock(&ha->mq_lock); 922 clear_bit(que_id, ha->rsp_qid_map); 923 mutex_unlock(&ha->mq_lock); 924 goto que_failed; 925 } 926 vha->flags.qpairs_rsp_created = 1; 927 } 928 rsp->req = NULL; 929 930 qla2x00_init_response_q_entries(rsp); 931 if (qpair->hw->wq) 932 INIT_WORK(&qpair->q_work, qla_do_work); 933 return rsp->id; 934 935 que_failed: 936 qla25xx_free_rsp_que(base_vha, rsp); 937 failed: 938 return 0; 939 } 940 941 static void qla_ctrlvp_sp_done(srb_t *sp, int res) 942 { 943 if (sp->comp) 944 complete(sp->comp); 945 /* don't free sp here. Let the caller do the free */ 946 } 947 948 /** 949 * qla24xx_control_vp() - Enable a virtual port for given host 950 * @vha: adapter block pointer 951 * @cmd: command type to be sent for enable virtual port 952 * 953 * Return: qla2xxx local function return status code. 954 */ 955 int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd) 956 { 957 int rval = QLA_MEMORY_ALLOC_FAILED; 958 struct qla_hw_data *ha = vha->hw; 959 int vp_index = vha->vp_idx; 960 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 961 DECLARE_COMPLETION_ONSTACK(comp); 962 srb_t *sp; 963 964 ql_dbg(ql_dbg_vport, vha, 0x10c1, 965 "Entered %s cmd %x index %d.\n", __func__, cmd, vp_index); 966 967 if (vp_index == 0 || vp_index >= ha->max_npiv_vports) 968 return QLA_PARAMETER_ERROR; 969 970 /* ref: INIT */ 971 sp = qla2x00_get_sp(base_vha, NULL, GFP_KERNEL); 972 if (!sp) 973 return rval; 974 975 sp->type = SRB_CTRL_VP; 976 sp->name = "ctrl_vp"; 977 sp->comp = ∁ 978 qla2x00_init_async_sp(sp, qla2x00_get_async_timeout(vha) + 2, 979 qla_ctrlvp_sp_done); 980 sp->u.iocb_cmd.u.ctrlvp.cmd = cmd; 981 sp->u.iocb_cmd.u.ctrlvp.vp_index = vp_index; 982 983 rval = qla2x00_start_sp(sp); 984 if (rval != QLA_SUCCESS) { 985 ql_dbg(ql_dbg_async, vha, 0xffff, 986 "%s: %s Failed submission. %x.\n", 987 __func__, sp->name, rval); 988 goto done; 989 } 990 991 ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n", 992 sp->name, sp->handle); 993 994 wait_for_completion(&comp); 995 sp->comp = NULL; 996 997 rval = sp->rc; 998 switch (rval) { 999 case QLA_FUNCTION_TIMEOUT: 1000 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Timeout. %x.\n", 1001 __func__, sp->name, rval); 1002 break; 1003 case QLA_SUCCESS: 1004 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s done.\n", 1005 __func__, sp->name); 1006 break; 1007 default: 1008 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n", 1009 __func__, sp->name, rval); 1010 break; 1011 } 1012 done: 1013 /* ref: INIT */ 1014 kref_put(&sp->cmd_kref, qla2x00_sp_release); 1015 return rval; 1016 } 1017