1 /*- 2 * Copyright (c) 2017 Broadcom. All rights reserved. 3 * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * 15 * 3. Neither the name of the copyright holder nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 /** 35 * @defgroup scsi_api_target SCSI Target API 36 * @defgroup scsi_api_initiator SCSI Initiator API 37 * @defgroup cam_api Common Access Method (CAM) API 38 * @defgroup cam_io CAM IO 39 */ 40 41 /** 42 * @file 43 * Provides CAM functionality. 44 */ 45 46 #include "ocs.h" 47 #include "ocs_scsi.h" 48 #include "ocs_device.h" 49 50 /* Default IO timeout value for initiators is 30 seconds */ 51 #define OCS_CAM_IO_TIMEOUT 30 52 53 typedef struct { 54 ocs_scsi_sgl_t *sgl; 55 uint32_t sgl_max; 56 uint32_t sgl_count; 57 int32_t rc; 58 } ocs_dmamap_load_arg_t; 59 60 static void ocs_action(struct cam_sim *, union ccb *); 61 static void ocs_poll(struct cam_sim *); 62 63 static ocs_tgt_resource_t *ocs_tgt_resource_get(ocs_fcport *, 64 struct ccb_hdr *, uint32_t *); 65 static int32_t ocs_tgt_resource_abort(struct ocs_softc *, ocs_tgt_resource_t *); 66 static uint32_t ocs_abort_initiator_io(struct ocs_softc *ocs, union ccb *accb); 67 static void ocs_abort_inot(struct ocs_softc *ocs, union ccb *ccb); 68 static void ocs_abort_atio(struct ocs_softc *ocs, union ccb *ccb); 69 static int32_t ocs_target_tmf_cb(ocs_io_t *, ocs_scsi_io_status_e, uint32_t, void *); 70 static int32_t ocs_io_abort_cb(ocs_io_t *, ocs_scsi_io_status_e, uint32_t, void *); 71 static int32_t ocs_task_set_full_or_busy(ocs_io_t *io); 72 static int32_t ocs_initiator_tmf_cb(ocs_io_t *, ocs_scsi_io_status_e, 73 ocs_scsi_cmd_resp_t *, uint32_t, void *); 74 static uint32_t 75 ocs_fcp_change_role(struct ocs_softc *ocs, ocs_fcport *fcp, uint32_t new_role); 76 77 static void ocs_ldt(void *arg); 78 static void ocs_ldt_task(void *arg, int pending); 79 static void ocs_delete_target(ocs_t *ocs, ocs_fcport *fcp, int tgt); 80 uint32_t ocs_add_new_tgt(ocs_node_t *node, ocs_fcport *fcp); 81 uint32_t ocs_update_tgt(ocs_node_t *node, ocs_fcport *fcp, uint32_t tgt_id); 82 83 int32_t ocs_tgt_find(ocs_fcport *fcp, ocs_node_t *node); 84 85 static inline ocs_io_t *ocs_scsi_find_io(struct ocs_softc *ocs, uint32_t tag) 86 { 87 88 return ocs_io_get_instance(ocs, tag); 89 } 90 91 static inline void ocs_target_io_free(ocs_io_t *io) 92 { 93 io->tgt_io.state = OCS_CAM_IO_FREE; 94 io->tgt_io.flags = 0; 95 io->tgt_io.app = NULL; 96 ocs_scsi_io_complete(io); 97 if(io->ocs->io_in_use != 0) 98 atomic_subtract_acq_32(&io->ocs->io_in_use, 1); 99 } 100 101 static int32_t 102 ocs_attach_port(ocs_t *ocs, int chan) 103 { 104 105 struct cam_sim *sim = NULL; 106 struct cam_path *path = NULL; 107 uint32_t max_io = ocs_scsi_get_property(ocs, OCS_SCSI_MAX_IOS); 108 ocs_fcport *fcp = FCPORT(ocs, chan); 109 110 if (NULL == (sim = cam_sim_alloc(ocs_action, ocs_poll, 111 device_get_name(ocs->dev), ocs, 112 device_get_unit(ocs->dev), &ocs->sim_lock, 113 max_io, max_io, ocs->devq))) { 114 device_printf(ocs->dev, "Can't allocate SIM\n"); 115 return 1; 116 } 117 118 mtx_lock(&ocs->sim_lock); 119 if (CAM_SUCCESS != xpt_bus_register(sim, ocs->dev, chan)) { 120 device_printf(ocs->dev, "Can't register bus %d\n", 0); 121 mtx_unlock(&ocs->sim_lock); 122 cam_sim_free(sim, FALSE); 123 return 1; 124 } 125 mtx_unlock(&ocs->sim_lock); 126 127 if (CAM_REQ_CMP != xpt_create_path(&path, NULL, cam_sim_path(sim), 128 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD)) { 129 device_printf(ocs->dev, "Can't create path\n"); 130 xpt_bus_deregister(cam_sim_path(sim)); 131 mtx_unlock(&ocs->sim_lock); 132 cam_sim_free(sim, FALSE); 133 return 1; 134 } 135 136 fcp->ocs = ocs; 137 fcp->sim = sim; 138 fcp->path = path; 139 140 callout_init_mtx(&fcp->ldt, &ocs->sim_lock, 0); 141 TASK_INIT(&fcp->ltask, 1, ocs_ldt_task, fcp); 142 143 return 0; 144 } 145 146 static int32_t 147 ocs_detach_port(ocs_t *ocs, int32_t chan) 148 { 149 ocs_fcport *fcp = NULL; 150 struct cam_sim *sim = NULL; 151 struct cam_path *path = NULL; 152 fcp = FCPORT(ocs, chan); 153 154 sim = fcp->sim; 155 path = fcp->path; 156 157 callout_drain(&fcp->ldt); 158 ocs_ldt_task(fcp, 0); 159 160 if (fcp->sim) { 161 mtx_lock(&ocs->sim_lock); 162 ocs_tgt_resource_abort(ocs, &fcp->targ_rsrc_wildcard); 163 if (path) { 164 xpt_async(AC_LOST_DEVICE, path, NULL); 165 xpt_free_path(path); 166 fcp->path = NULL; 167 } 168 xpt_bus_deregister(cam_sim_path(sim)); 169 170 cam_sim_free(sim, FALSE); 171 fcp->sim = NULL; 172 mtx_unlock(&ocs->sim_lock); 173 } 174 175 return 0; 176 } 177 178 int32_t 179 ocs_cam_attach(ocs_t *ocs) 180 { 181 struct cam_devq *devq = NULL; 182 int i = 0; 183 uint32_t max_io = ocs_scsi_get_property(ocs, OCS_SCSI_MAX_IOS); 184 185 if (NULL == (devq = cam_simq_alloc(max_io))) { 186 device_printf(ocs->dev, "Can't allocate SIMQ\n"); 187 return -1; 188 } 189 190 ocs->devq = devq; 191 192 if (mtx_initialized(&ocs->sim_lock) == 0) { 193 mtx_init(&ocs->sim_lock, "ocs_sim_lock", NULL, MTX_DEF); 194 } 195 196 for (i = 0; i < (ocs->num_vports + 1); i++) { 197 if (ocs_attach_port(ocs, i)) { 198 ocs_log_err(ocs, "Attach port failed for chan: %d\n", i); 199 goto detach_port; 200 } 201 } 202 203 ocs->io_high_watermark = max_io; 204 ocs->io_in_use = 0; 205 return 0; 206 207 detach_port: 208 while (--i >= 0) { 209 ocs_detach_port(ocs, i); 210 } 211 212 cam_simq_free(ocs->devq); 213 214 if (mtx_initialized(&ocs->sim_lock)) 215 mtx_destroy(&ocs->sim_lock); 216 217 return 1; 218 } 219 220 int32_t 221 ocs_cam_detach(ocs_t *ocs) 222 { 223 int i = 0; 224 225 for (i = (ocs->num_vports); i >= 0; i--) { 226 ocs_detach_port(ocs, i); 227 } 228 229 cam_simq_free(ocs->devq); 230 231 if (mtx_initialized(&ocs->sim_lock)) 232 mtx_destroy(&ocs->sim_lock); 233 234 return 0; 235 } 236 237 /*************************************************************************** 238 * Functions required by SCSI base driver API 239 */ 240 241 /** 242 * @ingroup scsi_api_target 243 * @brief Attach driver to the BSD SCSI layer (a.k.a CAM) 244 * 245 * Allocates + initializes CAM related resources and attaches to the CAM 246 * 247 * @param ocs the driver instance's software context 248 * 249 * @return 0 on success, non-zero otherwise 250 */ 251 int32_t 252 ocs_scsi_tgt_new_device(ocs_t *ocs) 253 { 254 ocs->enable_task_set_full = ocs_scsi_get_property(ocs, 255 OCS_SCSI_ENABLE_TASK_SET_FULL); 256 ocs_log_debug(ocs, "task set full processing is %s\n", 257 ocs->enable_task_set_full ? "enabled" : "disabled"); 258 259 return 0; 260 } 261 262 /** 263 * @ingroup scsi_api_target 264 * @brief Tears down target members of ocs structure. 265 * 266 * Called by OS code when device is removed. 267 * 268 * @param ocs pointer to ocs 269 * 270 * @return returns 0 for success, a negative error code value for failure. 271 */ 272 int32_t 273 ocs_scsi_tgt_del_device(ocs_t *ocs) 274 { 275 276 return 0; 277 } 278 279 /** 280 * @ingroup scsi_api_target 281 * @brief accept new domain notification 282 * 283 * Called by base drive when new domain is discovered. A target-server 284 * will use this call to prepare for new remote node notifications 285 * arising from ocs_scsi_new_initiator(). 286 * 287 * The domain context has an element <b>ocs_scsi_tgt_domain_t tgt_domain</b> 288 * which is declared by the target-server code and is used for target-server 289 * private data. 290 * 291 * This function will only be called if the base-driver has been enabled for 292 * target capability. 293 * 294 * Note that this call is made to target-server backends, 295 * the ocs_scsi_ini_new_domain() function is called to initiator-client backends. 296 * 297 * @param domain pointer to domain 298 * 299 * @return returns 0 for success, a negative error code value for failure. 300 */ 301 int32_t 302 ocs_scsi_tgt_new_domain(ocs_domain_t *domain) 303 { 304 return 0; 305 } 306 307 /** 308 * @ingroup scsi_api_target 309 * @brief accept domain lost notification 310 * 311 * Called by base-driver when a domain goes away. A target-server will 312 * use this call to clean up all domain scoped resources. 313 * 314 * Note that this call is made to target-server backends, 315 * the ocs_scsi_ini_del_domain() function is called to initiator-client backends. 316 * 317 * @param domain pointer to domain 318 * 319 * @return returns 0 for success, a negative error code value for failure. 320 */ 321 void 322 ocs_scsi_tgt_del_domain(ocs_domain_t *domain) 323 { 324 } 325 326 /** 327 * @ingroup scsi_api_target 328 * @brief accept new sli port (sport) notification 329 * 330 * Called by base drive when new sport is discovered. A target-server 331 * will use this call to prepare for new remote node notifications 332 * arising from ocs_scsi_new_initiator(). 333 * 334 * The domain context has an element <b>ocs_scsi_tgt_sport_t tgt_sport</b> 335 * which is declared by the target-server code and is used for 336 * target-server private data. 337 * 338 * This function will only be called if the base-driver has been enabled for 339 * target capability. 340 * 341 * Note that this call is made to target-server backends, 342 * the ocs_scsi_tgt_new_domain() is called to initiator-client backends. 343 * 344 * @param sport pointer to SLI port 345 * 346 * @return returns 0 for success, a negative error code value for failure. 347 */ 348 int32_t 349 ocs_scsi_tgt_new_sport(ocs_sport_t *sport) 350 { 351 ocs_t *ocs = sport->ocs; 352 353 if(!sport->is_vport) { 354 sport->tgt_data = FCPORT(ocs, 0); 355 } 356 357 return 0; 358 } 359 360 /** 361 * @ingroup scsi_api_target 362 * @brief accept SLI port gone notification 363 * 364 * Called by base-driver when a sport goes away. A target-server will 365 * use this call to clean up all sport scoped resources. 366 * 367 * Note that this call is made to target-server backends, 368 * the ocs_scsi_ini_del_sport() is called to initiator-client backends. 369 * 370 * @param sport pointer to SLI port 371 * 372 * @return returns 0 for success, a negative error code value for failure. 373 */ 374 void 375 ocs_scsi_tgt_del_sport(ocs_sport_t *sport) 376 { 377 return; 378 } 379 380 /** 381 * @ingroup scsi_api_target 382 * @brief receive notification of a new SCSI initiator node 383 * 384 * Sent by base driver to notify a target-server of the presense of a new 385 * remote initiator. The target-server may use this call to prepare for 386 * inbound IO from this node. 387 * 388 * The ocs_node_t structure has and elment of type ocs_scsi_tgt_node_t named 389 * tgt_node that is declared and used by a target-server for private 390 * information. 391 * 392 * This function is only called if the target capability is enabled in driver. 393 * 394 * @param node pointer to new remote initiator node 395 * 396 * @return returns 0 for success, a negative error code value for failure. 397 * 398 * @note 399 */ 400 int32_t 401 ocs_scsi_new_initiator(ocs_node_t *node) 402 { 403 ocs_t *ocs = node->ocs; 404 struct ac_contract ac; 405 struct ac_device_changed *adc; 406 407 ocs_fcport *fcp = NULL; 408 409 fcp = node->sport->tgt_data; 410 if (fcp == NULL) { 411 ocs_log_err(ocs, "FCP is NULL \n"); 412 return 1; 413 } 414 415 /* 416 * Update the IO watermark by decrementing it by the 417 * number of IOs reserved for each initiator. 418 */ 419 atomic_subtract_acq_32(&ocs->io_high_watermark, OCS_RSVD_INI_IO); 420 421 ac.contract_number = AC_CONTRACT_DEV_CHG; 422 adc = (struct ac_device_changed *) ac.contract_data; 423 adc->wwpn = ocs_node_get_wwpn(node); 424 adc->port = node->rnode.fc_id; 425 adc->target = node->instance_index; 426 adc->arrived = 1; 427 xpt_async(AC_CONTRACT, fcp->path, &ac); 428 429 return 0; 430 } 431 432 /** 433 * @ingroup scsi_api_target 434 * @brief validate new initiator 435 * 436 * Sent by base driver to validate a remote initiatiator. The target-server 437 * returns TRUE if this initiator should be accepted. 438 * 439 * This function is only called if the target capability is enabled in driver. 440 * 441 * @param node pointer to remote initiator node to validate 442 * 443 * @return TRUE if initiator should be accepted, FALSE if it should be rejected 444 * 445 * @note 446 */ 447 448 int32_t 449 ocs_scsi_validate_initiator(ocs_node_t *node) 450 { 451 return 1; 452 } 453 454 /** 455 * @ingroup scsi_api_target 456 * @brief Delete a SCSI initiator node 457 * 458 * Sent by base driver to notify a target-server that a remote initiator 459 * is now gone. The base driver will have terminated all outstanding IOs 460 * and the target-server will receive appropriate completions. 461 * 462 * This function is only called if the base driver is enabled for 463 * target capability. 464 * 465 * @param node pointer node being deleted 466 * @param reason Reason why initiator is gone. 467 * 468 * @return OCS_SCSI_CALL_COMPLETE to indicate that all work was completed 469 * 470 * @note 471 */ 472 int32_t 473 ocs_scsi_del_initiator(ocs_node_t *node, ocs_scsi_del_initiator_reason_e reason) 474 { 475 ocs_t *ocs = node->ocs; 476 477 struct ac_contract ac; 478 struct ac_device_changed *adc; 479 ocs_fcport *fcp = NULL; 480 481 fcp = node->sport->tgt_data; 482 if (fcp == NULL) { 483 ocs_log_err(ocs, "FCP is NULL \n"); 484 return 1; 485 } 486 487 ac.contract_number = AC_CONTRACT_DEV_CHG; 488 adc = (struct ac_device_changed *) ac.contract_data; 489 adc->wwpn = ocs_node_get_wwpn(node); 490 adc->port = node->rnode.fc_id; 491 adc->target = node->instance_index; 492 adc->arrived = 0; 493 xpt_async(AC_CONTRACT, fcp->path, &ac); 494 495 if (reason == OCS_SCSI_INITIATOR_MISSING) { 496 return OCS_SCSI_CALL_COMPLETE; 497 } 498 499 /* 500 * Update the IO watermark by incrementing it by the 501 * number of IOs reserved for each initiator. 502 */ 503 atomic_add_acq_32(&ocs->io_high_watermark, OCS_RSVD_INI_IO); 504 505 return OCS_SCSI_CALL_COMPLETE; 506 } 507 508 /** 509 * @ingroup scsi_api_target 510 * @brief receive FCP SCSI Command 511 * 512 * Called by the base driver when a new SCSI command has been received. The 513 * target-server will process the command, and issue data and/or response phase 514 * requests to the base driver. 515 * 516 * The IO context (ocs_io_t) structure has and element of type 517 * ocs_scsi_tgt_io_t named tgt_io that is declared and used by 518 * a target-server for private information. 519 * 520 * @param io pointer to IO context 521 * @param lun LUN for this IO 522 * @param cdb pointer to SCSI CDB 523 * @param cdb_len length of CDB in bytes 524 * @param flags command flags 525 * 526 * @return returns 0 for success, a negative error code value for failure. 527 */ 528 int32_t ocs_scsi_recv_cmd(ocs_io_t *io, uint64_t lun, uint8_t *cdb, 529 uint32_t cdb_len, uint32_t flags) 530 { 531 ocs_t *ocs = io->ocs; 532 struct ccb_accept_tio *atio = NULL; 533 ocs_node_t *node = io->node; 534 ocs_tgt_resource_t *trsrc = NULL; 535 int32_t rc = -1; 536 ocs_fcport *fcp = NULL; 537 538 fcp = node->sport->tgt_data; 539 if (fcp == NULL) { 540 ocs_log_err(ocs, "FCP is NULL \n"); 541 return 1; 542 } 543 544 atomic_add_acq_32(&ocs->io_in_use, 1); 545 546 /* set target io timeout */ 547 io->timeout = ocs->target_io_timer_sec; 548 549 if (ocs->enable_task_set_full && 550 (ocs->io_in_use >= ocs->io_high_watermark)) { 551 return ocs_task_set_full_or_busy(io); 552 } else { 553 atomic_store_rel_32(&io->node->tgt_node.busy_sent, FALSE); 554 } 555 556 if ((lun < OCS_MAX_LUN) && fcp->targ_rsrc[lun].enabled) { 557 trsrc = &fcp->targ_rsrc[lun]; 558 } else if (fcp->targ_rsrc_wildcard.enabled) { 559 trsrc = &fcp->targ_rsrc_wildcard; 560 } 561 562 if (trsrc) { 563 atio = (struct ccb_accept_tio *)STAILQ_FIRST(&trsrc->atio); 564 } 565 566 if (atio) { 567 STAILQ_REMOVE_HEAD(&trsrc->atio, sim_links.stqe); 568 569 atio->ccb_h.status = CAM_CDB_RECVD; 570 atio->ccb_h.target_lun = lun; 571 atio->sense_len = 0; 572 573 atio->init_id = node->instance_index; 574 atio->tag_id = io->tag; 575 atio->ccb_h.ccb_io_ptr = io; 576 577 if (flags & OCS_SCSI_CMD_SIMPLE) 578 atio->tag_action = MSG_SIMPLE_Q_TAG; 579 else if (flags & OCS_SCSI_CMD_HEAD_OF_QUEUE) 580 atio->tag_action = MSG_HEAD_OF_Q_TAG; 581 else if (flags & OCS_SCSI_CMD_ORDERED) 582 atio->tag_action = MSG_ORDERED_Q_TAG; 583 else if (flags & OCS_SCSI_CMD_ACA) 584 atio->tag_action = MSG_ACA_TASK; 585 else 586 atio->tag_action = CAM_TAG_ACTION_NONE; 587 atio->priority = (flags & OCS_SCSI_PRIORITY_MASK) >> 588 OCS_SCSI_PRIORITY_SHIFT; 589 590 atio->cdb_len = cdb_len; 591 ocs_memcpy(atio->cdb_io.cdb_bytes, cdb, cdb_len); 592 593 io->tgt_io.flags = 0; 594 io->tgt_io.state = OCS_CAM_IO_COMMAND; 595 io->tgt_io.lun = lun; 596 597 xpt_done((union ccb *)atio); 598 599 rc = 0; 600 } else { 601 device_printf( 602 ocs->dev, "%s: no ATIO for LUN %lx (en=%s) OX_ID %#x\n", 603 __func__, (unsigned long)lun, 604 trsrc ? (trsrc->enabled ? "T" : "F") : "X", 605 be16toh(io->init_task_tag)); 606 607 io->tgt_io.state = OCS_CAM_IO_MAX; 608 ocs_target_io_free(io); 609 } 610 611 return rc; 612 } 613 614 /** 615 * @ingroup scsi_api_target 616 * @brief receive FCP SCSI Command with first burst data. 617 * 618 * Receive a new FCP SCSI command from the base driver with first burst data. 619 * 620 * @param io pointer to IO context 621 * @param lun LUN for this IO 622 * @param cdb pointer to SCSI CDB 623 * @param cdb_len length of CDB in bytes 624 * @param flags command flags 625 * @param first_burst_buffers first burst buffers 626 * @param first_burst_buffer_count The number of bytes received in the first burst 627 * 628 * @return returns 0 for success, a negative error code value for failure. 629 */ 630 int32_t ocs_scsi_recv_cmd_first_burst(ocs_io_t *io, uint64_t lun, uint8_t *cdb, 631 uint32_t cdb_len, uint32_t flags, 632 ocs_dma_t first_burst_buffers[], 633 uint32_t first_burst_buffer_count) 634 { 635 return -1; 636 } 637 638 /** 639 * @ingroup scsi_api_target 640 * @brief receive a TMF command IO 641 * 642 * Called by the base driver when a SCSI TMF command has been received. The 643 * target-server will process the command, aborting commands as needed, and post 644 * a response using ocs_scsi_send_resp() 645 * 646 * The IO context (ocs_io_t) structure has and element of type ocs_scsi_tgt_io_t named 647 * tgt_io that is declared and used by a target-server for private information. 648 * 649 * If the target-server walks the nodes active_ios linked list, and starts IO 650 * abort processing, the code <b>must</b> be sure not to abort the IO passed into the 651 * ocs_scsi_recv_tmf() command. 652 * 653 * @param tmfio pointer to IO context 654 * @param lun logical unit value 655 * @param cmd command request 656 * @param abortio pointer to IO object to abort for TASK_ABORT (NULL for all other TMF) 657 * @param flags flags 658 * 659 * @return returns 0 for success, a negative error code value for failure. 660 */ 661 int32_t ocs_scsi_recv_tmf(ocs_io_t *tmfio, uint64_t lun, ocs_scsi_tmf_cmd_e cmd, 662 ocs_io_t *abortio, uint32_t flags) 663 { 664 ocs_t *ocs = tmfio->ocs; 665 ocs_node_t *node = tmfio->node; 666 ocs_tgt_resource_t *trsrc = NULL; 667 struct ccb_immediate_notify *inot = NULL; 668 int32_t rc = -1; 669 ocs_fcport *fcp = NULL; 670 671 fcp = node->sport->tgt_data; 672 if (fcp == NULL) { 673 ocs_log_err(ocs, "FCP is NULL \n"); 674 return 1; 675 } 676 677 if ((lun < OCS_MAX_LUN) && fcp->targ_rsrc[lun].enabled) { 678 trsrc = &fcp->targ_rsrc[lun]; 679 } else if (fcp->targ_rsrc_wildcard.enabled) { 680 trsrc = &fcp->targ_rsrc_wildcard; 681 } 682 683 device_printf(tmfio->ocs->dev, "%s: io=%p cmd=%#x LU=%lx en=%s\n", 684 __func__, tmfio, cmd, (unsigned long)lun, 685 trsrc ? (trsrc->enabled ? "T" : "F") : "X"); 686 if (trsrc) { 687 inot = (struct ccb_immediate_notify *)STAILQ_FIRST(&trsrc->inot); 688 } 689 690 if (!inot) { 691 device_printf( 692 ocs->dev, "%s: no INOT for LUN %llx (en=%s) OX_ID %#x\n", 693 __func__, (unsigned long long)lun, trsrc ? (trsrc->enabled ? "T" : "F") : "X", 694 be16toh(tmfio->init_task_tag)); 695 696 if (abortio) { 697 ocs_scsi_io_complete(abortio); 698 } 699 ocs_scsi_io_complete(tmfio); 700 goto ocs_scsi_recv_tmf_out; 701 } 702 703 tmfio->tgt_io.app = abortio; 704 705 STAILQ_REMOVE_HEAD(&trsrc->inot, sim_links.stqe); 706 707 inot->tag_id = tmfio->tag; 708 inot->seq_id = tmfio->tag; 709 710 if ((lun < OCS_MAX_LUN) && fcp->targ_rsrc[lun].enabled) { 711 inot->initiator_id = node->instance_index; 712 } else { 713 inot->initiator_id = CAM_TARGET_WILDCARD; 714 } 715 716 inot->ccb_h.status = CAM_MESSAGE_RECV; 717 inot->ccb_h.target_lun = lun; 718 719 switch (cmd) { 720 case OCS_SCSI_TMF_ABORT_TASK: 721 inot->arg = MSG_ABORT_TASK; 722 inot->seq_id = abortio->tag; 723 device_printf(ocs->dev, "%s: ABTS IO.%#x st=%#x\n", 724 __func__, abortio->tag, abortio->tgt_io.state); 725 abortio->tgt_io.flags |= OCS_CAM_IO_F_ABORT_RECV; 726 abortio->tgt_io.flags |= OCS_CAM_IO_F_ABORT_NOTIFY; 727 break; 728 case OCS_SCSI_TMF_QUERY_TASK_SET: 729 device_printf(ocs->dev, 730 "%s: OCS_SCSI_TMF_QUERY_TASK_SET not supported\n", 731 __func__); 732 STAILQ_INSERT_TAIL(&trsrc->inot, &inot->ccb_h, sim_links.stqe); 733 ocs_scsi_io_complete(tmfio); 734 goto ocs_scsi_recv_tmf_out; 735 break; 736 case OCS_SCSI_TMF_ABORT_TASK_SET: 737 inot->arg = MSG_ABORT_TASK_SET; 738 break; 739 case OCS_SCSI_TMF_CLEAR_TASK_SET: 740 inot->arg = MSG_CLEAR_TASK_SET; 741 break; 742 case OCS_SCSI_TMF_QUERY_ASYNCHRONOUS_EVENT: 743 inot->arg = MSG_QUERY_ASYNC_EVENT; 744 break; 745 case OCS_SCSI_TMF_LOGICAL_UNIT_RESET: 746 inot->arg = MSG_LOGICAL_UNIT_RESET; 747 break; 748 case OCS_SCSI_TMF_CLEAR_ACA: 749 inot->arg = MSG_CLEAR_ACA; 750 break; 751 case OCS_SCSI_TMF_TARGET_RESET: 752 inot->arg = MSG_TARGET_RESET; 753 break; 754 default: 755 device_printf(ocs->dev, "%s: unsupported TMF %#x\n", 756 __func__, cmd); 757 STAILQ_INSERT_TAIL(&trsrc->inot, &inot->ccb_h, sim_links.stqe); 758 goto ocs_scsi_recv_tmf_out; 759 } 760 761 rc = 0; 762 763 xpt_print(inot->ccb_h.path, "%s: func=%#x stat=%#x id=%#x lun=%#x" 764 " flags=%#x tag=%#x seq=%#x ini=%#x arg=%#x\n", 765 __func__, inot->ccb_h.func_code, inot->ccb_h.status, 766 inot->ccb_h.target_id, 767 (unsigned int)inot->ccb_h.target_lun, inot->ccb_h.flags, 768 inot->tag_id, inot->seq_id, inot->initiator_id, 769 inot->arg); 770 xpt_done((union ccb *)inot); 771 772 if (abortio) { 773 abortio->tgt_io.flags |= OCS_CAM_IO_F_ABORT_DEV; 774 rc = ocs_scsi_tgt_abort_io(abortio, ocs_io_abort_cb, tmfio); 775 } 776 777 ocs_scsi_recv_tmf_out: 778 return rc; 779 } 780 781 /** 782 * @ingroup scsi_api_initiator 783 * @brief Initializes any initiator fields on the ocs structure. 784 * 785 * Called by OS initialization code when a new device is discovered. 786 * 787 * @param ocs pointer to ocs 788 * 789 * @return returns 0 for success, a negative error code value for failure. 790 */ 791 int32_t 792 ocs_scsi_ini_new_device(ocs_t *ocs) 793 { 794 795 return 0; 796 } 797 798 /** 799 * @ingroup scsi_api_initiator 800 * @brief Tears down initiator members of ocs structure. 801 * 802 * Called by OS code when device is removed. 803 * 804 * @param ocs pointer to ocs 805 * 806 * @return returns 0 for success, a negative error code value for failure. 807 */ 808 809 int32_t 810 ocs_scsi_ini_del_device(ocs_t *ocs) 811 { 812 813 return 0; 814 } 815 816 /** 817 * @ingroup scsi_api_initiator 818 * @brief accept new domain notification 819 * 820 * Called by base drive when new domain is discovered. An initiator-client 821 * will accept this call to prepare for new remote node notifications 822 * arising from ocs_scsi_new_target(). 823 * 824 * The domain context has the element <b>ocs_scsi_ini_domain_t ini_domain</b> 825 * which is declared by the initiator-client code and is used for 826 * initiator-client private data. 827 * 828 * This function will only be called if the base-driver has been enabled for 829 * initiator capability. 830 * 831 * Note that this call is made to initiator-client backends, 832 * the ocs_scsi_tgt_new_domain() function is called to target-server backends. 833 * 834 * @param domain pointer to domain 835 * 836 * @return returns 0 for success, a negative error code value for failure. 837 */ 838 int32_t 839 ocs_scsi_ini_new_domain(ocs_domain_t *domain) 840 { 841 return 0; 842 } 843 844 /** 845 * @ingroup scsi_api_initiator 846 * @brief accept domain lost notification 847 * 848 * Called by base-driver when a domain goes away. An initiator-client will 849 * use this call to clean up all domain scoped resources. 850 * 851 * This function will only be called if the base-driver has been enabled for 852 * initiator capability. 853 * 854 * Note that this call is made to initiator-client backends, 855 * the ocs_scsi_tgt_del_domain() function is called to target-server backends. 856 * 857 * @param domain pointer to domain 858 * 859 * @return returns 0 for success, a negative error code value for failure. 860 */ 861 void 862 ocs_scsi_ini_del_domain(ocs_domain_t *domain) 863 { 864 } 865 866 /** 867 * @ingroup scsi_api_initiator 868 * @brief accept new sli port notification 869 * 870 * Called by base drive when new sli port (sport) is discovered. 871 * A target-server will use this call to prepare for new remote node 872 * notifications arising from ocs_scsi_new_initiator(). 873 * 874 * This function will only be called if the base-driver has been enabled for 875 * target capability. 876 * 877 * Note that this call is made to target-server backends, 878 * the ocs_scsi_ini_new_sport() function is called to initiator-client backends. 879 * 880 * @param sport pointer to sport 881 * 882 * @return returns 0 for success, a negative error code value for failure. 883 */ 884 int32_t 885 ocs_scsi_ini_new_sport(ocs_sport_t *sport) 886 { 887 ocs_t *ocs = sport->ocs; 888 ocs_fcport *fcp = FCPORT(ocs, 0); 889 890 if (!sport->is_vport) { 891 sport->tgt_data = fcp; 892 fcp->fc_id = sport->fc_id; 893 } 894 895 return 0; 896 } 897 898 /** 899 * @ingroup scsi_api_initiator 900 * @brief accept sli port gone notification 901 * 902 * Called by base-driver when a sport goes away. A target-server will 903 * use this call to clean up all sport scoped resources. 904 * 905 * Note that this call is made to target-server backends, 906 * the ocs_scsi_ini_del_sport() function is called to initiator-client backends. 907 * 908 * @param sport pointer to SLI port 909 * 910 * @return returns 0 for success, a negative error code value for failure. 911 */ 912 void 913 ocs_scsi_ini_del_sport(ocs_sport_t *sport) 914 { 915 ocs_t *ocs = sport->ocs; 916 ocs_fcport *fcp = FCPORT(ocs, 0); 917 918 if (!sport->is_vport) { 919 fcp->fc_id = 0; 920 } 921 } 922 923 void 924 ocs_scsi_sport_deleted(ocs_sport_t *sport) 925 { 926 ocs_t *ocs = sport->ocs; 927 ocs_fcport *fcp = NULL; 928 929 ocs_xport_stats_t value; 930 931 if (!sport->is_vport) { 932 return; 933 } 934 935 fcp = sport->tgt_data; 936 937 ocs_xport_status(ocs->xport, OCS_XPORT_PORT_STATUS, &value); 938 939 if (value.value == 0) { 940 ocs_log_debug(ocs, "PORT offline,.. skipping\n"); 941 return; 942 } 943 944 if ((fcp->role != KNOB_ROLE_NONE)) { 945 if(fcp->vport->sport != NULL) { 946 ocs_log_debug(ocs,"sport is not NULL, skipping\n"); 947 return; 948 } 949 950 ocs_sport_vport_alloc(ocs->domain, fcp->vport); 951 return; 952 } 953 954 } 955 956 int32_t 957 ocs_tgt_find(ocs_fcport *fcp, ocs_node_t *node) 958 { 959 ocs_fc_target_t *tgt = NULL; 960 uint32_t i; 961 962 for (i = 0; i < OCS_MAX_TARGETS; i++) { 963 tgt = &fcp->tgt[i]; 964 965 if (tgt->state == OCS_TGT_STATE_NONE) 966 continue; 967 968 if (ocs_node_get_wwpn(node) == tgt->wwpn) { 969 return i; 970 } 971 } 972 973 return -1; 974 } 975 976 /** 977 * @ingroup scsi_api_initiator 978 * @brief receive notification of a new SCSI target node 979 * 980 * Sent by base driver to notify an initiator-client of the presense of a new 981 * remote target. The initiator-server may use this call to prepare for 982 * inbound IO from this node. 983 * 984 * This function is only called if the base driver is enabled for 985 * initiator capability. 986 * 987 * @param node pointer to new remote initiator node 988 * 989 * @return none 990 * 991 * @note 992 */ 993 994 uint32_t 995 ocs_update_tgt(ocs_node_t *node, ocs_fcport *fcp, uint32_t tgt_id) 996 { 997 ocs_fc_target_t *tgt = NULL; 998 999 tgt = &fcp->tgt[tgt_id]; 1000 1001 tgt->node_id = node->instance_index; 1002 tgt->state = OCS_TGT_STATE_VALID; 1003 1004 tgt->port_id = node->rnode.fc_id; 1005 tgt->wwpn = ocs_node_get_wwpn(node); 1006 tgt->wwnn = ocs_node_get_wwnn(node); 1007 return 0; 1008 } 1009 1010 uint32_t 1011 ocs_add_new_tgt(ocs_node_t *node, ocs_fcport *fcp) 1012 { 1013 uint32_t i; 1014 1015 struct ocs_softc *ocs = node->ocs; 1016 union ccb *ccb = NULL; 1017 for (i = 0; i < OCS_MAX_TARGETS; i++) { 1018 if (fcp->tgt[i].state == OCS_TGT_STATE_NONE) 1019 break; 1020 } 1021 1022 if (NULL == (ccb = xpt_alloc_ccb_nowait())) { 1023 device_printf(ocs->dev, "%s: ccb allocation failed\n", __func__); 1024 return -1; 1025 } 1026 1027 if (CAM_REQ_CMP != xpt_create_path(&ccb->ccb_h.path, xpt_periph, 1028 cam_sim_path(fcp->sim), 1029 i, CAM_LUN_WILDCARD)) { 1030 device_printf( 1031 ocs->dev, "%s: target path creation failed\n", __func__); 1032 xpt_free_ccb(ccb); 1033 return -1; 1034 } 1035 1036 ocs_update_tgt(node, fcp, i); 1037 xpt_rescan(ccb); 1038 return 0; 1039 } 1040 1041 int32_t 1042 ocs_scsi_new_target(ocs_node_t *node) 1043 { 1044 ocs_fcport *fcp = NULL; 1045 int32_t i; 1046 1047 fcp = node->sport->tgt_data; 1048 if (fcp == NULL) { 1049 printf("%s:FCP is NULL \n", __func__); 1050 return 0; 1051 } 1052 1053 i = ocs_tgt_find(fcp, node); 1054 1055 if (i < 0) { 1056 ocs_add_new_tgt(node, fcp); 1057 return 0; 1058 } 1059 1060 ocs_update_tgt(node, fcp, i); 1061 return 0; 1062 } 1063 1064 static void 1065 ocs_delete_target(ocs_t *ocs, ocs_fcport *fcp, int tgt) 1066 { 1067 struct cam_path *cpath = NULL; 1068 1069 if (!fcp->sim) { 1070 device_printf(ocs->dev, "%s: calling with NULL sim\n", __func__); 1071 return; 1072 } 1073 1074 if (CAM_REQ_CMP == xpt_create_path(&cpath, NULL, cam_sim_path(fcp->sim), 1075 tgt, CAM_LUN_WILDCARD)) { 1076 xpt_async(AC_LOST_DEVICE, cpath, NULL); 1077 1078 xpt_free_path(cpath); 1079 } 1080 } 1081 1082 /* 1083 * Device Lost Timer Function- when we have decided that a device was lost, 1084 * we wait a specific period of time prior to telling the OS about lost device. 1085 * 1086 * This timer function gets activated when the device was lost. 1087 * This function fires once a second and then scans the port database 1088 * for devices that are marked dead but still have a virtual target assigned. 1089 * We decrement a counter for that port database entry, and when it hits zero, 1090 * we tell the OS the device was lost. Timer will be stopped when the device 1091 * comes back active or removed from the OS. 1092 */ 1093 static void 1094 ocs_ldt(void *arg) 1095 { 1096 ocs_fcport *fcp = arg; 1097 taskqueue_enqueue(taskqueue_thread, &fcp->ltask); 1098 } 1099 1100 static void 1101 ocs_ldt_task(void *arg, int pending) 1102 { 1103 ocs_fcport *fcp = arg; 1104 ocs_t *ocs = fcp->ocs; 1105 int i, more_to_do = 0; 1106 ocs_fc_target_t *tgt = NULL; 1107 1108 for (i = 0; i < OCS_MAX_TARGETS; i++) { 1109 tgt = &fcp->tgt[i]; 1110 1111 if (tgt->state != OCS_TGT_STATE_LOST) { 1112 continue; 1113 } 1114 1115 if ((tgt->gone_timer != 0) && (ocs->attached)){ 1116 tgt->gone_timer -= 1; 1117 more_to_do++; 1118 continue; 1119 } 1120 1121 ocs_delete_target(ocs, fcp, i); 1122 1123 tgt->state = OCS_TGT_STATE_NONE; 1124 } 1125 1126 if (more_to_do) { 1127 callout_reset(&fcp->ldt, hz, ocs_ldt, fcp); 1128 } else { 1129 callout_deactivate(&fcp->ldt); 1130 } 1131 1132 } 1133 1134 /** 1135 * @ingroup scsi_api_initiator 1136 * @brief Delete a SCSI target node 1137 * 1138 * Sent by base driver to notify a initiator-client that a remote target 1139 * is now gone. The base driver will have terminated all outstanding IOs 1140 * and the initiator-client will receive appropriate completions. 1141 * 1142 * The ocs_node_t structure has and elment of type ocs_scsi_ini_node_t named 1143 * ini_node that is declared and used by a target-server for private 1144 * information. 1145 * 1146 * This function is only called if the base driver is enabled for 1147 * initiator capability. 1148 * 1149 * @param node pointer node being deleted 1150 * @param reason reason for deleting the target 1151 * 1152 * @return Returns OCS_SCSI_CALL_ASYNC if target delete is queued for async 1153 * completion and OCS_SCSI_CALL_COMPLETE if call completed or error. 1154 * 1155 * @note 1156 */ 1157 int32_t 1158 ocs_scsi_del_target(ocs_node_t *node, ocs_scsi_del_target_reason_e reason) 1159 { 1160 struct ocs_softc *ocs = node->ocs; 1161 ocs_fcport *fcp = NULL; 1162 ocs_fc_target_t *tgt = NULL; 1163 int32_t tgt_id; 1164 1165 if (ocs == NULL) { 1166 ocs_log_err(ocs,"OCS is NULL \n"); 1167 return -1; 1168 } 1169 1170 fcp = node->sport->tgt_data; 1171 if (fcp == NULL) { 1172 ocs_log_err(ocs,"FCP is NULL \n"); 1173 return -1; 1174 } 1175 1176 tgt_id = ocs_tgt_find(fcp, node); 1177 if (tgt_id == -1) { 1178 ocs_log_err(ocs,"target is invalid\n"); 1179 return -1; 1180 } 1181 1182 tgt = &fcp->tgt[tgt_id]; 1183 1184 // IF in shutdown delete target. 1185 if(!ocs->attached) { 1186 ocs_delete_target(ocs, fcp, tgt_id); 1187 } else { 1188 tgt->state = OCS_TGT_STATE_LOST; 1189 tgt->gone_timer = 30; 1190 if (!callout_active(&fcp->ldt)) { 1191 callout_reset(&fcp->ldt, hz, ocs_ldt, fcp); 1192 } 1193 } 1194 1195 return 0; 1196 } 1197 1198 /** 1199 * @brief Initialize SCSI IO 1200 * 1201 * Initialize SCSI IO, this function is called once per IO during IO pool 1202 * allocation so that the target server may initialize any of its own private 1203 * data. 1204 * 1205 * @param io pointer to SCSI IO object 1206 * 1207 * @return returns 0 for success, a negative error code value for failure. 1208 */ 1209 int32_t 1210 ocs_scsi_tgt_io_init(ocs_io_t *io) 1211 { 1212 return 0; 1213 } 1214 1215 /** 1216 * @brief Uninitialize SCSI IO 1217 * 1218 * Uninitialize target server private data in a SCSI io object 1219 * 1220 * @param io pointer to SCSI IO object 1221 * 1222 * @return returns 0 for success, a negative error code value for failure. 1223 */ 1224 int32_t 1225 ocs_scsi_tgt_io_exit(ocs_io_t *io) 1226 { 1227 return 0; 1228 } 1229 1230 /** 1231 * @brief Initialize SCSI IO 1232 * 1233 * Initialize SCSI IO, this function is called once per IO during IO pool 1234 * allocation so that the initiator client may initialize any of its own private 1235 * data. 1236 * 1237 * @param io pointer to SCSI IO object 1238 * 1239 * @return returns 0 for success, a negative error code value for failure. 1240 */ 1241 int32_t 1242 ocs_scsi_ini_io_init(ocs_io_t *io) 1243 { 1244 return 0; 1245 } 1246 1247 /** 1248 * @brief Uninitialize SCSI IO 1249 * 1250 * Uninitialize initiator client private data in a SCSI io object 1251 * 1252 * @param io pointer to SCSI IO object 1253 * 1254 * @return returns 0 for success, a negative error code value for failure. 1255 */ 1256 int32_t 1257 ocs_scsi_ini_io_exit(ocs_io_t *io) 1258 { 1259 return 0; 1260 } 1261 /* 1262 * End of functions required by SCSI base driver API 1263 ***************************************************************************/ 1264 1265 static __inline void 1266 ocs_set_ccb_status(union ccb *ccb, cam_status status) 1267 { 1268 ccb->ccb_h.status &= ~CAM_STATUS_MASK; 1269 ccb->ccb_h.status |= status; 1270 } 1271 1272 static int32_t 1273 ocs_task_set_full_or_busy_cb(ocs_io_t *io, ocs_scsi_io_status_e scsi_status, 1274 uint32_t flags, void *arg) 1275 { 1276 1277 ocs_target_io_free(io); 1278 1279 return 0; 1280 } 1281 1282 /** 1283 * @brief send SCSI task set full or busy status 1284 * 1285 * A SCSI task set full or busy response is sent depending on whether 1286 * another IO is already active on the LUN. 1287 * 1288 * @param io pointer to IO context 1289 * 1290 * @return returns 0 for success, a negative error code value for failure. 1291 */ 1292 1293 static int32_t 1294 ocs_task_set_full_or_busy(ocs_io_t *io) 1295 { 1296 ocs_scsi_cmd_resp_t rsp = { 0 }; 1297 ocs_t *ocs = io->ocs; 1298 1299 /* 1300 * If there is another command for the LUN, then send task set full, 1301 * if this is the first one, then send the busy status. 1302 * 1303 * if 'busy sent' is FALSE, set it to TRUE and send BUSY 1304 * otherwise send FULL 1305 */ 1306 if (atomic_cmpset_acq_32(&io->node->tgt_node.busy_sent, FALSE, TRUE)) { 1307 rsp.scsi_status = SCSI_STATUS_BUSY; /* Busy */ 1308 printf("%s: busy [%s] tag=%x iiu=%d ihw=%d\n", __func__, 1309 io->node->display_name, io->tag, 1310 io->ocs->io_in_use, io->ocs->io_high_watermark); 1311 } else { 1312 rsp.scsi_status = SCSI_STATUS_TASK_SET_FULL; /* Task set full */ 1313 printf("%s: full tag=%x iiu=%d\n", __func__, io->tag, 1314 io->ocs->io_in_use); 1315 } 1316 1317 /* Log a message here indicating a busy or task set full state */ 1318 if (OCS_LOG_ENABLE_Q_FULL_BUSY_MSG(ocs)) { 1319 /* Log Task Set Full */ 1320 if (rsp.scsi_status == SCSI_STATUS_TASK_SET_FULL) { 1321 /* Task Set Full Message */ 1322 ocs_log_info(ocs, "OCS CAM TASK SET FULL. Tasks >= %d\n", 1323 ocs->io_high_watermark); 1324 } 1325 else if (rsp.scsi_status == SCSI_STATUS_BUSY) { 1326 /* Log Busy Message */ 1327 ocs_log_info(ocs, "OCS CAM SCSI BUSY\n"); 1328 } 1329 } 1330 1331 /* Send the response */ 1332 return 1333 ocs_scsi_send_resp(io, 0, &rsp, ocs_task_set_full_or_busy_cb, NULL); 1334 } 1335 1336 /** 1337 * @ingroup cam_io 1338 * @brief Process target IO completions 1339 * 1340 * @param io 1341 * @param scsi_status did the IO complete successfully 1342 * @param flags 1343 * @param arg application specific pointer provided in the call to ocs_target_io() 1344 * 1345 * @todo 1346 */ 1347 static int32_t ocs_scsi_target_io_cb(ocs_io_t *io, 1348 ocs_scsi_io_status_e scsi_status, 1349 uint32_t flags, void *arg) 1350 { 1351 union ccb *ccb = arg; 1352 struct ccb_scsiio *csio = &ccb->csio; 1353 struct ocs_softc *ocs = csio->ccb_h.ccb_ocs_ptr; 1354 uint32_t cam_dir = ccb->ccb_h.flags & CAM_DIR_MASK; 1355 uint32_t io_is_done = 1356 (ccb->ccb_h.flags & CAM_SEND_STATUS) == CAM_SEND_STATUS; 1357 1358 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 1359 1360 if (CAM_DIR_NONE != cam_dir) { 1361 bus_dmasync_op_t op; 1362 1363 if (CAM_DIR_IN == cam_dir) { 1364 op = BUS_DMASYNC_POSTREAD; 1365 } else { 1366 op = BUS_DMASYNC_POSTWRITE; 1367 } 1368 /* Synchronize the DMA memory with the CPU and free the mapping */ 1369 bus_dmamap_sync(ocs->buf_dmat, io->tgt_io.dmap, op); 1370 if (io->tgt_io.flags & OCS_CAM_IO_F_DMAPPED) { 1371 bus_dmamap_unload(ocs->buf_dmat, io->tgt_io.dmap); 1372 } 1373 } 1374 1375 if (io->tgt_io.sendresp) { 1376 io->tgt_io.sendresp = 0; 1377 ocs_scsi_cmd_resp_t resp = { 0 }; 1378 io->tgt_io.state = OCS_CAM_IO_RESP; 1379 resp.scsi_status = scsi_status; 1380 if (ccb->ccb_h.flags & CAM_SEND_SENSE) { 1381 resp.sense_data = (uint8_t *)&csio->sense_data; 1382 resp.sense_data_length = csio->sense_len; 1383 } 1384 resp.residual = io->exp_xfer_len - io->transferred; 1385 1386 return ocs_scsi_send_resp(io, 0, &resp, ocs_scsi_target_io_cb, ccb); 1387 } 1388 1389 switch (scsi_status) { 1390 case OCS_SCSI_STATUS_GOOD: 1391 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 1392 break; 1393 case OCS_SCSI_STATUS_ABORTED: 1394 ocs_set_ccb_status(ccb, CAM_REQ_ABORTED); 1395 break; 1396 default: 1397 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR); 1398 } 1399 1400 if (io_is_done) { 1401 if ((io->tgt_io.flags & OCS_CAM_IO_F_ABORT_NOTIFY) == 0) { 1402 ocs_target_io_free(io); 1403 } 1404 } else { 1405 io->tgt_io.state = OCS_CAM_IO_DATA_DONE; 1406 /*device_printf(ocs->dev, "%s: CTIO state=%d tag=%#x\n", 1407 __func__, io->tgt_io.state, io->tag);*/ 1408 } 1409 1410 xpt_done(ccb); 1411 1412 return 0; 1413 } 1414 1415 /** 1416 * @note 1. Since the CCB is assigned to the ocs_io_t on an XPT_CONT_TARGET_IO 1417 * action, if an initiator aborts a command prior to the SIM receiving 1418 * a CTIO, the IO's CCB will be NULL. 1419 */ 1420 static int32_t 1421 ocs_io_abort_cb(ocs_io_t *io, ocs_scsi_io_status_e scsi_status, uint32_t flags, void *arg) 1422 { 1423 struct ocs_softc *ocs = NULL; 1424 ocs_io_t *tmfio = arg; 1425 ocs_scsi_tmf_resp_e tmf_resp = OCS_SCSI_TMF_FUNCTION_COMPLETE; 1426 int32_t rc = 0; 1427 1428 ocs = io->ocs; 1429 1430 io->tgt_io.flags &= ~OCS_CAM_IO_F_ABORT_DEV; 1431 1432 /* A good status indicates the IO was aborted and will be completed in 1433 * the IO's completion handler. Handle the other cases here. */ 1434 switch (scsi_status) { 1435 case OCS_SCSI_STATUS_GOOD: 1436 break; 1437 case OCS_SCSI_STATUS_NO_IO: 1438 break; 1439 default: 1440 device_printf(ocs->dev, "%s: unhandled status %d\n", 1441 __func__, scsi_status); 1442 tmf_resp = OCS_SCSI_TMF_FUNCTION_REJECTED; 1443 rc = -1; 1444 } 1445 1446 ocs_scsi_send_tmf_resp(tmfio, tmf_resp, NULL, ocs_target_tmf_cb, NULL); 1447 1448 return rc; 1449 } 1450 1451 /** 1452 * @ingroup cam_io 1453 * @brief Process initiator IO completions 1454 * 1455 * @param io 1456 * @param scsi_status did the IO complete successfully 1457 * @param rsp pointer to response buffer 1458 * @param flags 1459 * @param arg application specific pointer provided in the call to ocs_target_io() 1460 * 1461 * @todo 1462 */ 1463 static int32_t ocs_scsi_initiator_io_cb(ocs_io_t *io, 1464 ocs_scsi_io_status_e scsi_status, 1465 ocs_scsi_cmd_resp_t *rsp, 1466 uint32_t flags, void *arg) 1467 { 1468 union ccb *ccb = arg; 1469 struct ccb_scsiio *csio = &ccb->csio; 1470 struct ocs_softc *ocs = csio->ccb_h.ccb_ocs_ptr; 1471 uint32_t cam_dir = ccb->ccb_h.flags & CAM_DIR_MASK; 1472 cam_status ccb_status= CAM_REQ_CMP_ERR; 1473 1474 if (CAM_DIR_NONE != cam_dir) { 1475 bus_dmasync_op_t op; 1476 1477 if (CAM_DIR_IN == cam_dir) { 1478 op = BUS_DMASYNC_POSTREAD; 1479 } else { 1480 op = BUS_DMASYNC_POSTWRITE; 1481 } 1482 /* Synchronize the DMA memory with the CPU and free the mapping */ 1483 bus_dmamap_sync(ocs->buf_dmat, io->tgt_io.dmap, op); 1484 if (io->tgt_io.flags & OCS_CAM_IO_F_DMAPPED) { 1485 bus_dmamap_unload(ocs->buf_dmat, io->tgt_io.dmap); 1486 } 1487 } 1488 1489 if (scsi_status == OCS_SCSI_STATUS_CHECK_RESPONSE) { 1490 csio->scsi_status = rsp->scsi_status; 1491 if (SCSI_STATUS_OK != rsp->scsi_status) 1492 ccb_status = CAM_SCSI_STATUS_ERROR; 1493 else 1494 ccb_status = CAM_REQ_CMP; 1495 1496 csio->resid = rsp->residual; 1497 1498 /* 1499 * If we've already got a SCSI error, prefer that because it 1500 * will have more detail. 1501 */ 1502 if ((rsp->residual < 0) && (ccb_status == CAM_REQ_CMP)) { 1503 ccb_status = CAM_DATA_RUN_ERR; 1504 } 1505 1506 if ((rsp->sense_data_length) && 1507 !(ccb->ccb_h.flags & (CAM_SENSE_PHYS | CAM_SENSE_PTR))) { 1508 uint32_t sense_len = 0; 1509 1510 ccb->ccb_h.status |= CAM_AUTOSNS_VALID; 1511 if (rsp->sense_data_length < csio->sense_len) { 1512 csio->sense_resid = 1513 csio->sense_len - rsp->sense_data_length; 1514 sense_len = rsp->sense_data_length; 1515 } else { 1516 csio->sense_resid = 0; 1517 sense_len = csio->sense_len; 1518 } 1519 ocs_memcpy(&csio->sense_data, rsp->sense_data, sense_len); 1520 } 1521 } else if (scsi_status != OCS_SCSI_STATUS_GOOD) { 1522 ccb_status = CAM_REQ_CMP_ERR; 1523 } else { 1524 ccb_status = CAM_REQ_CMP; 1525 } 1526 1527 ocs_set_ccb_status(ccb, ccb_status); 1528 1529 ocs_scsi_io_free(io); 1530 1531 csio->ccb_h.ccb_io_ptr = NULL; 1532 csio->ccb_h.ccb_ocs_ptr = NULL; 1533 1534 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 1535 1536 if ((ccb_status != CAM_REQ_CMP) && 1537 ((ccb->ccb_h.status & CAM_DEV_QFRZN) == 0)) { 1538 ccb->ccb_h.status |= CAM_DEV_QFRZN; 1539 xpt_freeze_devq(ccb->ccb_h.path, 1); 1540 } 1541 1542 xpt_done(ccb); 1543 1544 return 0; 1545 } 1546 1547 /** 1548 * @brief Load scatter-gather list entries into an IO 1549 * 1550 * This routine relies on the driver instance's software context pointer and 1551 * the IO object pointer having been already assigned to hooks in the CCB. 1552 * Although the routine does not return success/fail, callers can look at the 1553 * n_sge member to determine if the mapping failed (0 on failure). 1554 * 1555 * @param arg pointer to the CAM ccb for this IO 1556 * @param seg DMA address/length pairs 1557 * @param nseg number of DMA address/length pairs 1558 * @param error any errors while mapping the IO 1559 */ 1560 static void 1561 ocs_scsi_dmamap_load(void *arg, bus_dma_segment_t *seg, int nseg, int error) 1562 { 1563 ocs_dmamap_load_arg_t *sglarg = (ocs_dmamap_load_arg_t*) arg; 1564 1565 if (error) { 1566 printf("%s: seg=%p nseg=%d error=%d\n", 1567 __func__, seg, nseg, error); 1568 sglarg->rc = -1; 1569 } else { 1570 uint32_t i = 0; 1571 uint32_t c = 0; 1572 1573 if ((sglarg->sgl_count + nseg) > sglarg->sgl_max) { 1574 printf("%s: sgl_count=%d nseg=%d max=%d\n", __func__, 1575 sglarg->sgl_count, nseg, sglarg->sgl_max); 1576 sglarg->rc = -2; 1577 return; 1578 } 1579 1580 for (i = 0, c = sglarg->sgl_count; i < nseg; i++, c++) { 1581 sglarg->sgl[c].addr = seg[i].ds_addr; 1582 sglarg->sgl[c].len = seg[i].ds_len; 1583 } 1584 1585 sglarg->sgl_count = c; 1586 1587 sglarg->rc = 0; 1588 } 1589 } 1590 1591 /** 1592 * @brief Build a scatter-gather list from a CAM CCB 1593 * 1594 * @param ocs the driver instance's software context 1595 * @param ccb pointer to the CCB 1596 * @param io pointer to the previously allocated IO object 1597 * @param sgl pointer to SGL 1598 * @param sgl_max number of entries in sgl 1599 * 1600 * @return 0 on success, non-zero otherwise 1601 */ 1602 static int32_t 1603 ocs_build_scsi_sgl(struct ocs_softc *ocs, union ccb *ccb, ocs_io_t *io, 1604 ocs_scsi_sgl_t *sgl, uint32_t sgl_max) 1605 { 1606 ocs_dmamap_load_arg_t dmaarg; 1607 int32_t err = 0; 1608 1609 if (!ocs || !ccb || !io || !sgl) { 1610 printf("%s: bad param o=%p c=%p i=%p s=%p\n", __func__, 1611 ocs, ccb, io, sgl); 1612 return -1; 1613 } 1614 1615 io->tgt_io.flags &= ~OCS_CAM_IO_F_DMAPPED; 1616 1617 dmaarg.sgl = sgl; 1618 dmaarg.sgl_count = 0; 1619 dmaarg.sgl_max = sgl_max; 1620 dmaarg.rc = 0; 1621 1622 err = bus_dmamap_load_ccb(ocs->buf_dmat, io->tgt_io.dmap, ccb, 1623 ocs_scsi_dmamap_load, &dmaarg, 0); 1624 1625 if (err || dmaarg.rc) { 1626 device_printf( 1627 ocs->dev, "%s: bus_dmamap_load_ccb error (%d %d)\n", 1628 __func__, err, dmaarg.rc); 1629 return -1; 1630 } 1631 1632 io->tgt_io.flags |= OCS_CAM_IO_F_DMAPPED; 1633 return dmaarg.sgl_count; 1634 } 1635 1636 /** 1637 * @ingroup cam_io 1638 * @brief Send a target IO 1639 * 1640 * @param ocs the driver instance's software context 1641 * @param ccb pointer to the CCB 1642 * 1643 * @return 0 on success, non-zero otherwise 1644 */ 1645 static int32_t 1646 ocs_target_io(struct ocs_softc *ocs, union ccb *ccb) 1647 { 1648 struct ccb_scsiio *csio = &ccb->csio; 1649 ocs_io_t *io = NULL; 1650 uint32_t cam_dir = ccb->ccb_h.flags & CAM_DIR_MASK; 1651 bool sendstatus = ccb->ccb_h.flags & CAM_SEND_STATUS; 1652 uint32_t xferlen = csio->dxfer_len; 1653 int32_t rc = 0; 1654 1655 io = ocs_scsi_find_io(ocs, csio->tag_id); 1656 if (io == NULL) { 1657 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR); 1658 panic("bad tag value"); 1659 return 1; 1660 } 1661 1662 /* Received an ABORT TASK for this IO */ 1663 if (io->tgt_io.flags & OCS_CAM_IO_F_ABORT_RECV) { 1664 /*device_printf(ocs->dev, 1665 "%s: XPT_CONT_TARGET_IO state=%d tag=%#x xid=%#x flags=%#x\n", 1666 __func__, io->tgt_io.state, io->tag, io->init_task_tag, 1667 io->tgt_io.flags);*/ 1668 io->tgt_io.flags |= OCS_CAM_IO_F_ABORT_CAM; 1669 1670 if (ccb->ccb_h.flags & CAM_SEND_STATUS) { 1671 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 1672 ocs_target_io_free(io); 1673 return 1; 1674 } 1675 1676 ocs_set_ccb_status(ccb, CAM_REQ_ABORTED); 1677 1678 return 1; 1679 } 1680 1681 io->tgt_io.app = ccb; 1682 1683 ocs_set_ccb_status(ccb, CAM_REQ_INPROG); 1684 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1685 1686 csio->ccb_h.ccb_ocs_ptr = ocs; 1687 csio->ccb_h.ccb_io_ptr = io; 1688 1689 if ((sendstatus && (xferlen == 0))) { 1690 ocs_scsi_cmd_resp_t resp = { 0 }; 1691 1692 ocs_assert(ccb->ccb_h.flags & CAM_SEND_STATUS, -1); 1693 1694 io->tgt_io.state = OCS_CAM_IO_RESP; 1695 1696 resp.scsi_status = csio->scsi_status; 1697 1698 if (ccb->ccb_h.flags & CAM_SEND_SENSE) { 1699 resp.sense_data = (uint8_t *)&csio->sense_data; 1700 resp.sense_data_length = csio->sense_len; 1701 } 1702 1703 resp.residual = io->exp_xfer_len - io->transferred; 1704 rc = ocs_scsi_send_resp(io, 0, &resp, ocs_scsi_target_io_cb, ccb); 1705 1706 } else if (xferlen != 0) { 1707 ocs_scsi_sgl_t *sgl; 1708 int32_t sgl_count = 0; 1709 1710 io->tgt_io.state = OCS_CAM_IO_DATA; 1711 1712 if (sendstatus) 1713 io->tgt_io.sendresp = 1; 1714 1715 sgl = io->sgl; 1716 1717 sgl_count = ocs_build_scsi_sgl(ocs, ccb, io, sgl, io->sgl_allocated); 1718 if (sgl_count > 0) { 1719 if (cam_dir == CAM_DIR_IN) { 1720 rc = ocs_scsi_send_rd_data(io, 0, NULL, sgl, 1721 sgl_count, csio->dxfer_len, 1722 ocs_scsi_target_io_cb, ccb); 1723 } else if (cam_dir == CAM_DIR_OUT) { 1724 rc = ocs_scsi_recv_wr_data(io, 0, NULL, sgl, 1725 sgl_count, csio->dxfer_len, 1726 ocs_scsi_target_io_cb, ccb); 1727 } else { 1728 device_printf(ocs->dev, "%s:" 1729 " unknown CAM direction %#x\n", 1730 __func__, cam_dir); 1731 ocs_set_ccb_status(ccb, CAM_REQ_INVALID); 1732 rc = 1; 1733 } 1734 } else { 1735 device_printf(ocs->dev, "%s: building SGL failed\n", 1736 __func__); 1737 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR); 1738 rc = 1; 1739 } 1740 } else { 1741 device_printf(ocs->dev, "%s: Wrong value xfer and sendstatus" 1742 " are 0 \n", __func__); 1743 ocs_set_ccb_status(ccb, CAM_REQ_INVALID); 1744 rc = 1; 1745 } 1746 1747 if (rc) { 1748 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR); 1749 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 1750 io->tgt_io.state = OCS_CAM_IO_DATA_DONE; 1751 device_printf(ocs->dev, "%s: CTIO state=%d tag=%#x\n", 1752 __func__, io->tgt_io.state, io->tag); 1753 if ((sendstatus && (xferlen == 0))) { 1754 ocs_target_io_free(io); 1755 } 1756 } 1757 1758 return rc; 1759 } 1760 1761 static int32_t 1762 ocs_target_tmf_cb(ocs_io_t *io, ocs_scsi_io_status_e scsi_status, uint32_t flags, 1763 void *arg) 1764 { 1765 1766 /*device_printf(io->ocs->dev, "%s: tag=%x io=%p s=%#x\n", 1767 __func__, io->tag, io, scsi_status);*/ 1768 ocs_scsi_io_complete(io); 1769 1770 return 0; 1771 } 1772 1773 /** 1774 * @ingroup cam_io 1775 * @brief Send an initiator IO 1776 * 1777 * @param ocs the driver instance's software context 1778 * @param ccb pointer to the CCB 1779 * 1780 * @return 0 on success, non-zero otherwise 1781 */ 1782 static int32_t 1783 ocs_initiator_io(struct ocs_softc *ocs, union ccb *ccb) 1784 { 1785 int32_t rc; 1786 struct ccb_scsiio *csio = &ccb->csio; 1787 struct ccb_hdr *ccb_h = &csio->ccb_h; 1788 ocs_node_t *node = NULL; 1789 ocs_io_t *io = NULL; 1790 ocs_scsi_sgl_t *sgl; 1791 int32_t flags, sgl_count; 1792 ocs_fcport *fcp; 1793 1794 fcp = FCPORT(ocs, cam_sim_bus(xpt_path_sim((ccb)->ccb_h.path))); 1795 1796 if (fcp->tgt[ccb_h->target_id].state == OCS_TGT_STATE_LOST) { 1797 device_printf(ocs->dev, "%s: device LOST %d\n", __func__, 1798 ccb_h->target_id); 1799 return CAM_REQUEUE_REQ; 1800 } 1801 1802 if (fcp->tgt[ccb_h->target_id].state == OCS_TGT_STATE_NONE) { 1803 device_printf(ocs->dev, "%s: device not ready %d\n", __func__, 1804 ccb_h->target_id); 1805 return CAM_SEL_TIMEOUT; 1806 } 1807 1808 node = ocs_node_get_instance(ocs, fcp->tgt[ccb_h->target_id].node_id); 1809 if (node == NULL) { 1810 device_printf(ocs->dev, "%s: no device %d\n", __func__, 1811 ccb_h->target_id); 1812 return CAM_SEL_TIMEOUT; 1813 } 1814 1815 if (!node->targ) { 1816 device_printf(ocs->dev, "%s: not target device %d\n", __func__, 1817 ccb_h->target_id); 1818 return CAM_SEL_TIMEOUT; 1819 } 1820 1821 io = ocs_scsi_io_alloc(node, OCS_SCSI_IO_ROLE_ORIGINATOR); 1822 if (io == NULL) { 1823 device_printf(ocs->dev, "%s: unable to alloc IO\n", __func__); 1824 return -1; 1825 } 1826 1827 /* eventhough this is INI, use target structure as ocs_build_scsi_sgl 1828 * only references the tgt_io part of an ocs_io_t */ 1829 io->tgt_io.app = ccb; 1830 1831 csio->ccb_h.ccb_ocs_ptr = ocs; 1832 csio->ccb_h.ccb_io_ptr = io; 1833 sgl = io->sgl; 1834 1835 sgl_count = ocs_build_scsi_sgl(ocs, ccb, io, sgl, io->sgl_allocated); 1836 if (sgl_count < 0) { 1837 ocs_scsi_io_free(io); 1838 device_printf(ocs->dev, "%s: building SGL failed\n", __func__); 1839 return -1; 1840 } 1841 1842 if (ccb->ccb_h.timeout == CAM_TIME_INFINITY) { 1843 io->timeout = 0; 1844 } else if (ccb->ccb_h.timeout == CAM_TIME_DEFAULT) { 1845 io->timeout = OCS_CAM_IO_TIMEOUT; 1846 } else { 1847 io->timeout = ccb->ccb_h.timeout; 1848 } 1849 1850 switch (csio->tag_action) { 1851 case MSG_HEAD_OF_Q_TAG: 1852 flags = OCS_SCSI_CMD_HEAD_OF_QUEUE; 1853 break; 1854 case MSG_ORDERED_Q_TAG: 1855 flags = OCS_SCSI_CMD_ORDERED; 1856 break; 1857 case MSG_ACA_TASK: 1858 flags = OCS_SCSI_CMD_ACA; 1859 break; 1860 case CAM_TAG_ACTION_NONE: 1861 case MSG_SIMPLE_Q_TAG: 1862 default: 1863 flags = OCS_SCSI_CMD_SIMPLE; 1864 break; 1865 } 1866 flags |= (csio->priority << OCS_SCSI_PRIORITY_SHIFT) & 1867 OCS_SCSI_PRIORITY_MASK; 1868 1869 switch (ccb->ccb_h.flags & CAM_DIR_MASK) { 1870 case CAM_DIR_NONE: 1871 rc = ocs_scsi_send_nodata_io(node, io, ccb_h->target_lun, 1872 ccb->ccb_h.flags & CAM_CDB_POINTER ? 1873 csio->cdb_io.cdb_ptr: csio->cdb_io.cdb_bytes, 1874 csio->cdb_len, 1875 ocs_scsi_initiator_io_cb, ccb, flags); 1876 break; 1877 case CAM_DIR_IN: 1878 rc = ocs_scsi_send_rd_io(node, io, ccb_h->target_lun, 1879 ccb->ccb_h.flags & CAM_CDB_POINTER ? 1880 csio->cdb_io.cdb_ptr: csio->cdb_io.cdb_bytes, 1881 csio->cdb_len, 1882 NULL, 1883 sgl, sgl_count, csio->dxfer_len, 1884 ocs_scsi_initiator_io_cb, ccb, flags); 1885 break; 1886 case CAM_DIR_OUT: 1887 rc = ocs_scsi_send_wr_io(node, io, ccb_h->target_lun, 1888 ccb->ccb_h.flags & CAM_CDB_POINTER ? 1889 csio->cdb_io.cdb_ptr: csio->cdb_io.cdb_bytes, 1890 csio->cdb_len, 1891 NULL, 1892 sgl, sgl_count, csio->dxfer_len, 1893 ocs_scsi_initiator_io_cb, ccb, flags); 1894 break; 1895 default: 1896 panic("%s invalid data direction %08x\n", __func__, 1897 ccb->ccb_h.flags); 1898 break; 1899 } 1900 1901 return rc; 1902 } 1903 1904 static uint32_t 1905 ocs_fcp_change_role(struct ocs_softc *ocs, ocs_fcport *fcp, uint32_t new_role) 1906 { 1907 1908 uint32_t rc = 0, was = 0, i = 0; 1909 ocs_vport_spec_t *vport = fcp->vport; 1910 1911 for (was = 0, i = 0; i < (ocs->num_vports + 1); i++) { 1912 if (FCPORT(ocs, i)->role != KNOB_ROLE_NONE) 1913 was++; 1914 } 1915 1916 // Physical port 1917 if ((was == 0) || (vport == NULL)) { 1918 fcp->role = new_role; 1919 if (vport == NULL) { 1920 ocs->enable_ini = (new_role & KNOB_ROLE_INITIATOR)? 1:0; 1921 ocs->enable_tgt = (new_role & KNOB_ROLE_TARGET)? 1:0; 1922 } else { 1923 vport->enable_ini = (new_role & KNOB_ROLE_INITIATOR)? 1:0; 1924 vport->enable_tgt = (new_role & KNOB_ROLE_TARGET)? 1:0; 1925 } 1926 1927 rc = ocs_xport_control(ocs->xport, OCS_XPORT_PORT_OFFLINE); 1928 if (rc) { 1929 ocs_log_debug(ocs, "port offline failed : %d\n", rc); 1930 } 1931 1932 rc = ocs_xport_control(ocs->xport, OCS_XPORT_PORT_ONLINE); 1933 if (rc) { 1934 ocs_log_debug(ocs, "port online failed : %d\n", rc); 1935 } 1936 1937 return 0; 1938 } 1939 1940 if ((fcp->role != KNOB_ROLE_NONE)){ 1941 fcp->role = new_role; 1942 vport->enable_ini = (new_role & KNOB_ROLE_INITIATOR)? 1:0; 1943 vport->enable_tgt = (new_role & KNOB_ROLE_TARGET)? 1:0; 1944 /* New Sport will be created in sport deleted cb */ 1945 return ocs_sport_vport_del(ocs, ocs->domain, vport->wwpn, vport->wwnn); 1946 } 1947 1948 fcp->role = new_role; 1949 1950 vport->enable_ini = (new_role & KNOB_ROLE_INITIATOR)? 1:0; 1951 vport->enable_tgt = (new_role & KNOB_ROLE_TARGET)? 1:0; 1952 1953 if (fcp->role != KNOB_ROLE_NONE) { 1954 return ocs_sport_vport_alloc(ocs->domain, vport); 1955 } 1956 1957 return (0); 1958 } 1959 1960 /** 1961 * @ingroup cam_api 1962 * @brief Process CAM actions 1963 * 1964 * The driver supplies this routine to the CAM during intialization and 1965 * is the main entry point for processing CAM Control Blocks (CCB) 1966 * 1967 * @param sim pointer to the SCSI Interface Module 1968 * @param ccb CAM control block 1969 * 1970 * @todo 1971 * - populate path inquiry data via info retrieved from SLI port 1972 */ 1973 static void 1974 ocs_action(struct cam_sim *sim, union ccb *ccb) 1975 { 1976 struct ocs_softc *ocs = (struct ocs_softc *)cam_sim_softc(sim); 1977 struct ccb_hdr *ccb_h = &ccb->ccb_h; 1978 1979 int32_t rc, bus; 1980 bus = cam_sim_bus(sim); 1981 1982 switch (ccb_h->func_code) { 1983 case XPT_SCSI_IO: 1984 1985 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) { 1986 if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) { 1987 ccb->ccb_h.status = CAM_REQ_INVALID; 1988 xpt_done(ccb); 1989 break; 1990 } 1991 } 1992 1993 rc = ocs_initiator_io(ocs, ccb); 1994 if (0 == rc) { 1995 ocs_set_ccb_status(ccb, CAM_REQ_INPROG | CAM_SIM_QUEUED); 1996 break; 1997 } else { 1998 if (rc == CAM_REQUEUE_REQ) { 1999 cam_freeze_devq(ccb->ccb_h.path); 2000 cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 100, 0); 2001 ccb->ccb_h.status = CAM_REQUEUE_REQ; 2002 xpt_done(ccb); 2003 break; 2004 } 2005 2006 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 2007 if (rc > 0) { 2008 ocs_set_ccb_status(ccb, rc); 2009 } else { 2010 ocs_set_ccb_status(ccb, CAM_SEL_TIMEOUT); 2011 } 2012 } 2013 xpt_done(ccb); 2014 break; 2015 case XPT_PATH_INQ: 2016 { 2017 struct ccb_pathinq *cpi = &ccb->cpi; 2018 struct ccb_pathinq_settings_fc *fc = &cpi->xport_specific.fc; 2019 ocs_fcport *fcp = FCPORT(ocs, bus); 2020 2021 uint64_t wwn = 0; 2022 ocs_xport_stats_t value; 2023 2024 cpi->version_num = 1; 2025 2026 cpi->protocol = PROTO_SCSI; 2027 cpi->protocol_version = SCSI_REV_SPC; 2028 2029 if (ocs->ocs_xport == OCS_XPORT_FC) { 2030 cpi->transport = XPORT_FC; 2031 } else { 2032 cpi->transport = XPORT_UNKNOWN; 2033 } 2034 2035 cpi->transport_version = 0; 2036 2037 /* Set the transport parameters of the SIM */ 2038 ocs_xport_status(ocs->xport, OCS_XPORT_LINK_SPEED, &value); 2039 fc->bitrate = value.value * 1000; /* speed in Mbps */ 2040 2041 wwn = *((uint64_t *)ocs_scsi_get_property_ptr(ocs, OCS_SCSI_WWPN)); 2042 fc->wwpn = be64toh(wwn); 2043 2044 wwn = *((uint64_t *)ocs_scsi_get_property_ptr(ocs, OCS_SCSI_WWNN)); 2045 fc->wwnn = be64toh(wwn); 2046 2047 fc->port = fcp->fc_id; 2048 2049 if (ocs->config_tgt) { 2050 cpi->target_sprt = 2051 PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO; 2052 } 2053 2054 cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED; 2055 cpi->hba_misc |= PIM_EXTLUNS | PIM_NOSCAN; 2056 2057 cpi->hba_inquiry = PI_TAG_ABLE; 2058 cpi->max_target = OCS_MAX_TARGETS; 2059 cpi->initiator_id = ocs->max_remote_nodes + 1; 2060 2061 if (!ocs->enable_ini) { 2062 cpi->hba_misc |= PIM_NOINITIATOR; 2063 } 2064 2065 cpi->max_lun = OCS_MAX_LUN; 2066 cpi->bus_id = cam_sim_bus(sim); 2067 2068 /* Need to supply a base transfer speed prior to linking up 2069 * Worst case, this would be FC 1Gbps */ 2070 cpi->base_transfer_speed = 1 * 1000 * 1000; 2071 2072 /* Calculate the max IO supported 2073 * Worst case would be an OS page per SGL entry */ 2074 2075 cpi->maxio = PAGE_SIZE * 2076 (ocs_scsi_get_property(ocs, OCS_SCSI_MAX_SGL) - 1); 2077 2078 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 2079 strncpy(cpi->hba_vid, "Emulex", HBA_IDLEN); 2080 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 2081 cpi->unit_number = cam_sim_unit(sim); 2082 2083 cpi->ccb_h.status = CAM_REQ_CMP; 2084 xpt_done(ccb); 2085 break; 2086 } 2087 case XPT_GET_TRAN_SETTINGS: 2088 { 2089 struct ccb_trans_settings *cts = &ccb->cts; 2090 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 2091 struct ccb_trans_settings_fc *fc = &cts->xport_specific.fc; 2092 ocs_xport_stats_t value; 2093 ocs_fcport *fcp = FCPORT(ocs, bus); 2094 ocs_fc_target_t *tgt = NULL; 2095 2096 if (ocs->ocs_xport != OCS_XPORT_FC) { 2097 ocs_set_ccb_status(ccb, CAM_REQ_INVALID); 2098 xpt_done(ccb); 2099 break; 2100 } 2101 2102 if (cts->ccb_h.target_id > OCS_MAX_TARGETS) { 2103 ocs_set_ccb_status(ccb, CAM_DEV_NOT_THERE); 2104 xpt_done(ccb); 2105 break; 2106 } 2107 2108 tgt = &fcp->tgt[cts->ccb_h.target_id]; 2109 if (tgt->state == OCS_TGT_STATE_NONE) { 2110 ocs_set_ccb_status(ccb, CAM_DEV_NOT_THERE); 2111 xpt_done(ccb); 2112 break; 2113 } 2114 2115 cts->protocol = PROTO_SCSI; 2116 cts->protocol_version = SCSI_REV_SPC2; 2117 cts->transport = XPORT_FC; 2118 cts->transport_version = 2; 2119 2120 scsi->valid = CTS_SCSI_VALID_TQ; 2121 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 2122 2123 /* speed in Mbps */ 2124 ocs_xport_status(ocs->xport, OCS_XPORT_LINK_SPEED, &value); 2125 fc->bitrate = value.value * 100; 2126 2127 fc->wwpn = tgt->wwpn; 2128 2129 fc->wwnn = tgt->wwnn; 2130 2131 fc->port = tgt->port_id; 2132 2133 fc->valid = CTS_FC_VALID_SPEED | 2134 CTS_FC_VALID_WWPN | 2135 CTS_FC_VALID_WWNN | 2136 CTS_FC_VALID_PORT; 2137 2138 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 2139 xpt_done(ccb); 2140 break; 2141 } 2142 case XPT_SET_TRAN_SETTINGS: 2143 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 2144 xpt_done(ccb); 2145 break; 2146 2147 case XPT_CALC_GEOMETRY: 2148 cam_calc_geometry(&ccb->ccg, TRUE); 2149 xpt_done(ccb); 2150 break; 2151 2152 case XPT_GET_SIM_KNOB: 2153 { 2154 struct ccb_sim_knob *knob = &ccb->knob; 2155 uint64_t wwn = 0; 2156 ocs_fcport *fcp = FCPORT(ocs, bus); 2157 2158 if (ocs->ocs_xport != OCS_XPORT_FC) { 2159 ocs_set_ccb_status(ccb, CAM_REQ_INVALID); 2160 xpt_done(ccb); 2161 break; 2162 } 2163 2164 if (bus == 0) { 2165 wwn = *((uint64_t *)ocs_scsi_get_property_ptr(ocs, 2166 OCS_SCSI_WWNN)); 2167 knob->xport_specific.fc.wwnn = be64toh(wwn); 2168 2169 wwn = *((uint64_t *)ocs_scsi_get_property_ptr(ocs, 2170 OCS_SCSI_WWPN)); 2171 knob->xport_specific.fc.wwpn = be64toh(wwn); 2172 } else { 2173 knob->xport_specific.fc.wwnn = fcp->vport->wwnn; 2174 knob->xport_specific.fc.wwpn = fcp->vport->wwpn; 2175 } 2176 2177 knob->xport_specific.fc.role = fcp->role; 2178 knob->xport_specific.fc.valid = KNOB_VALID_ADDRESS | 2179 KNOB_VALID_ROLE; 2180 2181 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 2182 xpt_done(ccb); 2183 break; 2184 } 2185 case XPT_SET_SIM_KNOB: 2186 { 2187 struct ccb_sim_knob *knob = &ccb->knob; 2188 bool role_changed = FALSE; 2189 ocs_fcport *fcp = FCPORT(ocs, bus); 2190 2191 if (ocs->ocs_xport != OCS_XPORT_FC) { 2192 ocs_set_ccb_status(ccb, CAM_REQ_INVALID); 2193 xpt_done(ccb); 2194 break; 2195 } 2196 2197 if (knob->xport_specific.fc.valid & KNOB_VALID_ADDRESS) { 2198 device_printf(ocs->dev, 2199 "%s: XPT_SET_SIM_KNOB wwnn=%llx wwpn=%llx\n", 2200 __func__, 2201 (unsigned long long)knob->xport_specific.fc.wwnn, 2202 (unsigned long long)knob->xport_specific.fc.wwpn); 2203 } 2204 2205 if (knob->xport_specific.fc.valid & KNOB_VALID_ROLE) { 2206 switch (knob->xport_specific.fc.role) { 2207 case KNOB_ROLE_NONE: 2208 if (fcp->role != KNOB_ROLE_NONE) { 2209 role_changed = TRUE; 2210 } 2211 break; 2212 case KNOB_ROLE_TARGET: 2213 if (fcp->role != KNOB_ROLE_TARGET) { 2214 role_changed = TRUE; 2215 } 2216 break; 2217 case KNOB_ROLE_INITIATOR: 2218 if (fcp->role != KNOB_ROLE_INITIATOR) { 2219 role_changed = TRUE; 2220 } 2221 break; 2222 case KNOB_ROLE_BOTH: 2223 if (fcp->role != KNOB_ROLE_BOTH) { 2224 role_changed = TRUE; 2225 } 2226 break; 2227 default: 2228 device_printf(ocs->dev, 2229 "%s: XPT_SET_SIM_KNOB unsupported role: %d\n", 2230 __func__, knob->xport_specific.fc.role); 2231 } 2232 2233 if (role_changed) { 2234 device_printf(ocs->dev, 2235 "BUS:%d XPT_SET_SIM_KNOB old_role: %d new_role: %d\n", 2236 bus, fcp->role, knob->xport_specific.fc.role); 2237 2238 ocs_fcp_change_role(ocs, fcp, knob->xport_specific.fc.role); 2239 } 2240 } 2241 2242 2243 2244 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 2245 xpt_done(ccb); 2246 break; 2247 } 2248 case XPT_ABORT: 2249 { 2250 union ccb *accb = ccb->cab.abort_ccb; 2251 2252 switch (accb->ccb_h.func_code) { 2253 case XPT_ACCEPT_TARGET_IO: 2254 ocs_abort_atio(ocs, ccb); 2255 break; 2256 case XPT_IMMEDIATE_NOTIFY: 2257 ocs_abort_inot(ocs, ccb); 2258 break; 2259 case XPT_SCSI_IO: 2260 rc = ocs_abort_initiator_io(ocs, accb); 2261 if (rc) { 2262 ccb->ccb_h.status = CAM_UA_ABORT; 2263 } else { 2264 ccb->ccb_h.status = CAM_REQ_CMP; 2265 } 2266 2267 break; 2268 default: 2269 printf("abort of unknown func %#x\n", 2270 accb->ccb_h.func_code); 2271 ccb->ccb_h.status = CAM_REQ_INVALID; 2272 break; 2273 } 2274 break; 2275 } 2276 case XPT_RESET_BUS: 2277 if (ocs_xport_control(ocs->xport, OCS_XPORT_PORT_OFFLINE) == 0) { 2278 rc = ocs_xport_control(ocs->xport, OCS_XPORT_PORT_ONLINE); 2279 if (rc) { 2280 ocs_log_debug(ocs, "Failed to bring port online" 2281 " : %d\n", rc); 2282 } 2283 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 2284 } else { 2285 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR); 2286 } 2287 xpt_done(ccb); 2288 break; 2289 case XPT_RESET_DEV: 2290 { 2291 ocs_node_t *node = NULL; 2292 ocs_io_t *io = NULL; 2293 int32_t rc = 0; 2294 ocs_fcport *fcp = FCPORT(ocs, bus); 2295 2296 node = ocs_node_get_instance(ocs, fcp->tgt[ccb_h->target_id].node_id); 2297 if (node == NULL) { 2298 device_printf(ocs->dev, "%s: no device %d\n", 2299 __func__, ccb_h->target_id); 2300 ocs_set_ccb_status(ccb, CAM_DEV_NOT_THERE); 2301 xpt_done(ccb); 2302 break; 2303 } 2304 2305 io = ocs_scsi_io_alloc(node, OCS_SCSI_IO_ROLE_ORIGINATOR); 2306 if (io == NULL) { 2307 device_printf(ocs->dev, "%s: unable to alloc IO\n", 2308 __func__); 2309 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR); 2310 xpt_done(ccb); 2311 break; 2312 } 2313 2314 rc = ocs_scsi_send_tmf(node, io, NULL, ccb_h->target_lun, 2315 OCS_SCSI_TMF_LOGICAL_UNIT_RESET, 2316 NULL, 0, 0, /* sgl, sgl_count, length */ 2317 ocs_initiator_tmf_cb, NULL/*arg*/); 2318 2319 if (rc) { 2320 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR); 2321 } else { 2322 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 2323 } 2324 2325 if (node->fcp2device) { 2326 ocs_reset_crn(node, ccb_h->target_lun); 2327 } 2328 2329 xpt_done(ccb); 2330 break; 2331 } 2332 case XPT_EN_LUN: /* target support */ 2333 { 2334 ocs_tgt_resource_t *trsrc = NULL; 2335 uint32_t status = 0; 2336 ocs_fcport *fcp = FCPORT(ocs, bus); 2337 2338 device_printf(ocs->dev, "XPT_EN_LUN %sable %d:%d\n", 2339 ccb->cel.enable ? "en" : "dis", 2340 ccb->ccb_h.target_id, 2341 (unsigned int)ccb->ccb_h.target_lun); 2342 2343 trsrc = ocs_tgt_resource_get(fcp, &ccb->ccb_h, &status); 2344 if (trsrc) { 2345 trsrc->enabled = ccb->cel.enable; 2346 2347 /* Abort all ATIO/INOT on LUN disable */ 2348 if (trsrc->enabled == FALSE) { 2349 ocs_tgt_resource_abort(ocs, trsrc); 2350 } else { 2351 STAILQ_INIT(&trsrc->atio); 2352 STAILQ_INIT(&trsrc->inot); 2353 } 2354 status = CAM_REQ_CMP; 2355 } 2356 2357 ocs_set_ccb_status(ccb, status); 2358 xpt_done(ccb); 2359 break; 2360 } 2361 /* 2362 * The flow of target IOs in CAM is: 2363 * - CAM supplies a number of CCBs to the driver used for received 2364 * commands. 2365 * - when the driver receives a command, it copies the relevant 2366 * information to the CCB and returns it to the CAM using xpt_done() 2367 * - after the target server processes the request, it creates 2368 * a new CCB containing information on how to continue the IO and 2369 * passes that to the driver 2370 * - the driver processes the "continue IO" (a.k.a CTIO) CCB 2371 * - once the IO completes, the driver returns the CTIO to the CAM 2372 * using xpt_done() 2373 */ 2374 case XPT_ACCEPT_TARGET_IO: /* used to inform upper layer of 2375 received CDB (a.k.a. ATIO) */ 2376 case XPT_IMMEDIATE_NOTIFY: /* used to inform upper layer of other 2377 event (a.k.a. INOT) */ 2378 { 2379 ocs_tgt_resource_t *trsrc = NULL; 2380 uint32_t status = 0; 2381 ocs_fcport *fcp = FCPORT(ocs, bus); 2382 2383 /*printf("XPT_%s %p\n", ccb_h->func_code == XPT_ACCEPT_TARGET_IO ? 2384 "ACCEPT_TARGET_IO" : "IMMEDIATE_NOTIFY", ccb);*/ 2385 trsrc = ocs_tgt_resource_get(fcp, &ccb->ccb_h, &status); 2386 if (trsrc == NULL) { 2387 ocs_set_ccb_status(ccb, CAM_DEV_NOT_THERE); 2388 xpt_done(ccb); 2389 break; 2390 } 2391 2392 if (XPT_ACCEPT_TARGET_IO == ccb->ccb_h.func_code) { 2393 struct ccb_accept_tio *atio = NULL; 2394 2395 atio = (struct ccb_accept_tio *)ccb; 2396 atio->init_id = 0x0badbeef; 2397 atio->tag_id = 0xdeadc0de; 2398 2399 STAILQ_INSERT_TAIL(&trsrc->atio, &ccb->ccb_h, 2400 sim_links.stqe); 2401 } else { 2402 STAILQ_INSERT_TAIL(&trsrc->inot, &ccb->ccb_h, 2403 sim_links.stqe); 2404 } 2405 ccb->ccb_h.ccb_io_ptr = NULL; 2406 ccb->ccb_h.ccb_ocs_ptr = ocs; 2407 ocs_set_ccb_status(ccb, CAM_REQ_INPROG); 2408 /* 2409 * These actions give resources to the target driver. 2410 * If we didn't return here, this function would call 2411 * xpt_done(), signaling to the upper layers that an 2412 * IO or other event had arrived. 2413 */ 2414 break; 2415 } 2416 case XPT_NOTIFY_ACKNOWLEDGE: 2417 { 2418 ocs_io_t *io = NULL; 2419 ocs_io_t *abortio = NULL; 2420 2421 /* Get the IO reference for this tag */ 2422 io = ocs_scsi_find_io(ocs, ccb->cna2.tag_id); 2423 if (io == NULL) { 2424 device_printf(ocs->dev, 2425 "%s: XPT_NOTIFY_ACKNOWLEDGE no IO with tag %#x\n", 2426 __func__, ccb->cna2.tag_id); 2427 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR); 2428 xpt_done(ccb); 2429 break; 2430 } 2431 2432 abortio = io->tgt_io.app; 2433 if (abortio) { 2434 abortio->tgt_io.flags &= ~OCS_CAM_IO_F_ABORT_NOTIFY; 2435 device_printf(ocs->dev, 2436 "%s: XPT_NOTIFY_ACK state=%d tag=%#x xid=%#x" 2437 " flags=%#x\n", __func__, abortio->tgt_io.state, 2438 abortio->tag, abortio->init_task_tag, 2439 abortio->tgt_io.flags); 2440 /* TMF response was sent in abort callback */ 2441 } else { 2442 ocs_scsi_send_tmf_resp(io, 2443 OCS_SCSI_TMF_FUNCTION_COMPLETE, 2444 NULL, ocs_target_tmf_cb, NULL); 2445 } 2446 2447 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 2448 xpt_done(ccb); 2449 break; 2450 } 2451 case XPT_CONT_TARGET_IO: /* continue target IO, sending data/response (a.k.a. CTIO) */ 2452 if (ocs_target_io(ocs, ccb)) { 2453 device_printf(ocs->dev, 2454 "XPT_CONT_TARGET_IO failed flags=%x tag=%#x\n", 2455 ccb->ccb_h.flags, ccb->csio.tag_id); 2456 xpt_done(ccb); 2457 } 2458 break; 2459 default: 2460 device_printf(ocs->dev, "unhandled func_code = %#x\n", 2461 ccb_h->func_code); 2462 ccb_h->status = CAM_REQ_INVALID; 2463 xpt_done(ccb); 2464 break; 2465 } 2466 } 2467 2468 /** 2469 * @ingroup cam_api 2470 * @brief Process events 2471 * 2472 * @param sim pointer to the SCSI Interface Module 2473 * 2474 */ 2475 static void 2476 ocs_poll(struct cam_sim *sim) 2477 { 2478 printf("%s\n", __func__); 2479 } 2480 2481 static int32_t 2482 ocs_initiator_tmf_cb(ocs_io_t *io, ocs_scsi_io_status_e scsi_status, 2483 ocs_scsi_cmd_resp_t *rsp, uint32_t flags, void *arg) 2484 { 2485 int32_t rc = 0; 2486 2487 switch (scsi_status) { 2488 case OCS_SCSI_STATUS_GOOD: 2489 case OCS_SCSI_STATUS_NO_IO: 2490 break; 2491 case OCS_SCSI_STATUS_CHECK_RESPONSE: 2492 if (rsp->response_data_length == 0) { 2493 ocs_log_test(io->ocs, "check response without data?!?\n"); 2494 rc = -1; 2495 break; 2496 } 2497 2498 if (rsp->response_data[3] != 0) { 2499 ocs_log_test(io->ocs, "TMF status %08x\n", 2500 be32toh(*((uint32_t *)rsp->response_data))); 2501 rc = -1; 2502 break; 2503 } 2504 break; 2505 default: 2506 ocs_log_test(io->ocs, "status=%#x\n", scsi_status); 2507 rc = -1; 2508 } 2509 2510 ocs_scsi_io_free(io); 2511 2512 return rc; 2513 } 2514 2515 /** 2516 * @brief lookup target resource structure 2517 * 2518 * Arbitrarily support 2519 * - wildcard target ID + LU 2520 * - 0 target ID + non-wildcard LU 2521 * 2522 * @param ocs the driver instance's software context 2523 * @param ccb_h pointer to the CCB header 2524 * @param status returned status value 2525 * 2526 * @return pointer to the target resource, NULL if none available (e.g. if LU 2527 * is not enabled) 2528 */ 2529 static ocs_tgt_resource_t *ocs_tgt_resource_get(ocs_fcport *fcp, 2530 struct ccb_hdr *ccb_h, uint32_t *status) 2531 { 2532 target_id_t tid = ccb_h->target_id; 2533 lun_id_t lun = ccb_h->target_lun; 2534 2535 if (CAM_TARGET_WILDCARD == tid) { 2536 if (CAM_LUN_WILDCARD != lun) { 2537 *status = CAM_LUN_INVALID; 2538 return NULL; 2539 } 2540 return &fcp->targ_rsrc_wildcard; 2541 } else { 2542 if (lun < OCS_MAX_LUN) { 2543 return &fcp->targ_rsrc[lun]; 2544 } else { 2545 *status = CAM_LUN_INVALID; 2546 return NULL; 2547 } 2548 } 2549 2550 } 2551 2552 static int32_t 2553 ocs_tgt_resource_abort(struct ocs_softc *ocs, ocs_tgt_resource_t *trsrc) 2554 { 2555 union ccb *ccb = NULL; 2556 uint32_t count; 2557 2558 count = 0; 2559 do { 2560 ccb = (union ccb *)STAILQ_FIRST(&trsrc->atio); 2561 if (ccb) { 2562 STAILQ_REMOVE_HEAD(&trsrc->atio, sim_links.stqe); 2563 ccb->ccb_h.status = CAM_REQ_ABORTED; 2564 xpt_done(ccb); 2565 count++; 2566 } 2567 } while (ccb); 2568 2569 count = 0; 2570 do { 2571 ccb = (union ccb *)STAILQ_FIRST(&trsrc->inot); 2572 if (ccb) { 2573 STAILQ_REMOVE_HEAD(&trsrc->inot, sim_links.stqe); 2574 ccb->ccb_h.status = CAM_REQ_ABORTED; 2575 xpt_done(ccb); 2576 count++; 2577 } 2578 } while (ccb); 2579 2580 return 0; 2581 } 2582 2583 static void 2584 ocs_abort_atio(struct ocs_softc *ocs, union ccb *ccb) 2585 { 2586 2587 ocs_io_t *aio = NULL; 2588 ocs_tgt_resource_t *trsrc = NULL; 2589 uint32_t status = CAM_REQ_INVALID; 2590 struct ccb_hdr *cur = NULL; 2591 union ccb *accb = ccb->cab.abort_ccb; 2592 2593 int bus = cam_sim_bus(xpt_path_sim((ccb)->ccb_h.path)); 2594 ocs_fcport *fcp = FCPORT(ocs, bus); 2595 2596 trsrc = ocs_tgt_resource_get(fcp, &accb->ccb_h, &status); 2597 if (trsrc != NULL) { 2598 STAILQ_FOREACH(cur, &trsrc->atio, sim_links.stqe) { 2599 if (cur != &accb->ccb_h) 2600 continue; 2601 2602 STAILQ_REMOVE(&trsrc->atio, cur, ccb_hdr, 2603 sim_links.stqe); 2604 accb->ccb_h.status = CAM_REQ_ABORTED; 2605 xpt_done(accb); 2606 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 2607 return; 2608 } 2609 } 2610 2611 /* if the ATIO has a valid IO pointer, CAM is telling 2612 * the driver that the ATIO (which represents the entire 2613 * exchange) has been aborted. */ 2614 2615 aio = accb->ccb_h.ccb_io_ptr; 2616 if (aio == NULL) { 2617 ccb->ccb_h.status = CAM_UA_ABORT; 2618 return; 2619 } 2620 2621 device_printf(ocs->dev, 2622 "%s: XPT_ABORT ATIO state=%d tag=%#x" 2623 " xid=%#x flags=%#x\n", __func__, 2624 aio->tgt_io.state, aio->tag, 2625 aio->init_task_tag, aio->tgt_io.flags); 2626 /* Expectations are: 2627 * - abort task was received 2628 * - already aborted IO in the DEVICE 2629 * - already received NOTIFY ACKNOWLEDGE */ 2630 2631 if ((aio->tgt_io.flags & OCS_CAM_IO_F_ABORT_RECV) == 0) { 2632 device_printf(ocs->dev, "%s: abort not received or io completed \n", __func__); 2633 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 2634 return; 2635 } 2636 2637 aio->tgt_io.flags |= OCS_CAM_IO_F_ABORT_CAM; 2638 ocs_target_io_free(aio); 2639 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 2640 2641 return; 2642 } 2643 2644 static void 2645 ocs_abort_inot(struct ocs_softc *ocs, union ccb *ccb) 2646 { 2647 ocs_tgt_resource_t *trsrc = NULL; 2648 uint32_t status = CAM_REQ_INVALID; 2649 struct ccb_hdr *cur = NULL; 2650 union ccb *accb = ccb->cab.abort_ccb; 2651 2652 int bus = cam_sim_bus(xpt_path_sim((ccb)->ccb_h.path)); 2653 ocs_fcport *fcp = FCPORT(ocs, bus); 2654 2655 trsrc = ocs_tgt_resource_get(fcp, &accb->ccb_h, &status); 2656 if (trsrc) { 2657 STAILQ_FOREACH(cur, &trsrc->inot, sim_links.stqe) { 2658 if (cur != &accb->ccb_h) 2659 continue; 2660 2661 STAILQ_REMOVE(&trsrc->inot, cur, ccb_hdr, 2662 sim_links.stqe); 2663 accb->ccb_h.status = CAM_REQ_ABORTED; 2664 xpt_done(accb); 2665 ocs_set_ccb_status(ccb, CAM_REQ_CMP); 2666 return; 2667 } 2668 } 2669 2670 ocs_set_ccb_status(ccb, CAM_UA_ABORT); 2671 return; 2672 } 2673 2674 static uint32_t 2675 ocs_abort_initiator_io(struct ocs_softc *ocs, union ccb *accb) 2676 { 2677 2678 ocs_node_t *node = NULL; 2679 ocs_io_t *io = NULL; 2680 int32_t rc = 0; 2681 struct ccb_scsiio *csio = &accb->csio; 2682 2683 ocs_fcport *fcp = FCPORT(ocs, cam_sim_bus(xpt_path_sim((accb)->ccb_h.path))); 2684 node = ocs_node_get_instance(ocs, fcp->tgt[accb->ccb_h.target_id].node_id); 2685 if (node == NULL) { 2686 device_printf(ocs->dev, "%s: no device %d\n", 2687 __func__, accb->ccb_h.target_id); 2688 ocs_set_ccb_status(accb, CAM_DEV_NOT_THERE); 2689 xpt_done(accb); 2690 return (-1); 2691 } 2692 2693 io = ocs_scsi_io_alloc(node, OCS_SCSI_IO_ROLE_ORIGINATOR); 2694 if (io == NULL) { 2695 device_printf(ocs->dev, 2696 "%s: unable to alloc IO\n", __func__); 2697 ocs_set_ccb_status(accb, CAM_REQ_CMP_ERR); 2698 xpt_done(accb); 2699 return (-1); 2700 } 2701 2702 rc = ocs_scsi_send_tmf(node, io, 2703 (ocs_io_t *)csio->ccb_h.ccb_io_ptr, 2704 accb->ccb_h.target_lun, 2705 OCS_SCSI_TMF_ABORT_TASK, 2706 NULL, 0, 0, 2707 ocs_initiator_tmf_cb, NULL/*arg*/); 2708 2709 return rc; 2710 } 2711 2712 void 2713 ocs_scsi_ini_ddump(ocs_textbuf_t *textbuf, ocs_scsi_ddump_type_e type, void *obj) 2714 { 2715 switch(type) { 2716 case OCS_SCSI_DDUMP_DEVICE: { 2717 //ocs_t *ocs = obj; 2718 break; 2719 } 2720 case OCS_SCSI_DDUMP_DOMAIN: { 2721 //ocs_domain_t *domain = obj; 2722 break; 2723 } 2724 case OCS_SCSI_DDUMP_SPORT: { 2725 //ocs_sport_t *sport = obj; 2726 break; 2727 } 2728 case OCS_SCSI_DDUMP_NODE: { 2729 //ocs_node_t *node = obj; 2730 break; 2731 } 2732 case OCS_SCSI_DDUMP_IO: { 2733 //ocs_io_t *io = obj; 2734 break; 2735 } 2736 default: { 2737 break; 2738 } 2739 } 2740 } 2741 2742 void 2743 ocs_scsi_tgt_ddump(ocs_textbuf_t *textbuf, ocs_scsi_ddump_type_e type, void *obj) 2744 { 2745 switch(type) { 2746 case OCS_SCSI_DDUMP_DEVICE: { 2747 //ocs_t *ocs = obj; 2748 break; 2749 } 2750 case OCS_SCSI_DDUMP_DOMAIN: { 2751 //ocs_domain_t *domain = obj; 2752 break; 2753 } 2754 case OCS_SCSI_DDUMP_SPORT: { 2755 //ocs_sport_t *sport = obj; 2756 break; 2757 } 2758 case OCS_SCSI_DDUMP_NODE: { 2759 //ocs_node_t *node = obj; 2760 break; 2761 } 2762 case OCS_SCSI_DDUMP_IO: { 2763 ocs_io_t *io = obj; 2764 char *state_str = NULL; 2765 2766 switch (io->tgt_io.state) { 2767 case OCS_CAM_IO_FREE: 2768 state_str = "FREE"; 2769 break; 2770 case OCS_CAM_IO_COMMAND: 2771 state_str = "COMMAND"; 2772 break; 2773 case OCS_CAM_IO_DATA: 2774 state_str = "DATA"; 2775 break; 2776 case OCS_CAM_IO_DATA_DONE: 2777 state_str = "DATA_DONE"; 2778 break; 2779 case OCS_CAM_IO_RESP: 2780 state_str = "RESP"; 2781 break; 2782 default: 2783 state_str = "xxx BAD xxx"; 2784 } 2785 ocs_ddump_value(textbuf, "cam_st", "%s", state_str); 2786 if (io->tgt_io.app) { 2787 ocs_ddump_value(textbuf, "cam_flags", "%#x", 2788 ((union ccb *)(io->tgt_io.app))->ccb_h.flags); 2789 ocs_ddump_value(textbuf, "cam_status", "%#x", 2790 ((union ccb *)(io->tgt_io.app))->ccb_h.status); 2791 } 2792 2793 break; 2794 } 2795 default: { 2796 break; 2797 } 2798 } 2799 } 2800 2801 int32_t ocs_scsi_get_block_vaddr(ocs_io_t *io, uint64_t blocknumber, 2802 ocs_scsi_vaddr_len_t addrlen[], 2803 uint32_t max_addrlen, void **dif_vaddr) 2804 { 2805 return -1; 2806 } 2807 2808 uint32_t 2809 ocs_get_crn(ocs_node_t *node, uint8_t *crn, uint64_t lun) 2810 { 2811 uint32_t idx; 2812 struct ocs_lun_crn *lcrn = NULL; 2813 idx = lun % OCS_MAX_LUN; 2814 2815 lcrn = node->ini_node.lun_crn[idx]; 2816 2817 if (lcrn == NULL) { 2818 lcrn = ocs_malloc(node->ocs, sizeof(struct ocs_lun_crn), 2819 M_ZERO|M_NOWAIT); 2820 if (lcrn == NULL) { 2821 return (1); 2822 } 2823 2824 lcrn->lun = lun; 2825 node->ini_node.lun_crn[idx] = lcrn; 2826 } 2827 2828 if (lcrn->lun != lun) { 2829 return (1); 2830 } 2831 2832 if (lcrn->crnseed == 0) 2833 lcrn->crnseed = 1; 2834 2835 *crn = lcrn->crnseed++; 2836 return (0); 2837 } 2838 2839 void 2840 ocs_del_crn(ocs_node_t *node) 2841 { 2842 uint32_t i; 2843 struct ocs_lun_crn *lcrn = NULL; 2844 2845 for(i = 0; i < OCS_MAX_LUN; i++) { 2846 lcrn = node->ini_node.lun_crn[i]; 2847 if (lcrn) { 2848 ocs_free(node->ocs, lcrn, sizeof(*lcrn)); 2849 } 2850 } 2851 2852 return; 2853 } 2854 2855 void 2856 ocs_reset_crn(ocs_node_t *node, uint64_t lun) 2857 { 2858 uint32_t idx; 2859 struct ocs_lun_crn *lcrn = NULL; 2860 idx = lun % OCS_MAX_LUN; 2861 2862 lcrn = node->ini_node.lun_crn[idx]; 2863 if (lcrn) 2864 lcrn->crnseed = 0; 2865 2866 return; 2867 } 2868