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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
43 * Provides CAM functionality.
48 #include "ocs_device.h"
50 /* Default IO timeout value for initiators is 30 seconds */
51 #define OCS_CAM_IO_TIMEOUT 30
58 } ocs_dmamap_load_arg_t;
60 static void ocs_action(struct cam_sim *, union ccb *);
61 static void ocs_poll(struct cam_sim *);
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 *);
75 ocs_fcp_change_role(struct ocs_softc *ocs, ocs_fcport *fcp, uint32_t new_role);
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);
83 int32_t ocs_tgt_find(ocs_fcport *fcp, ocs_node_t *node);
85 static inline ocs_io_t *ocs_scsi_find_io(struct ocs_softc *ocs, uint32_t tag)
88 return ocs_io_get_instance(ocs, tag);
91 static inline void ocs_target_io_free(ocs_io_t *io)
93 io->tgt_io.state = OCS_CAM_IO_FREE;
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);
102 ocs_attach_port(ocs_t *ocs, int chan)
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);
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");
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);
125 mtx_unlock(&ocs->sim_lock);
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);
140 callout_init_mtx(&fcp->ldt, &ocs->sim_lock, 0);
141 TASK_INIT(&fcp->ltask, 1, ocs_ldt_task, fcp);
147 ocs_detach_port(ocs_t *ocs, int32_t chan)
149 ocs_fcport *fcp = NULL;
150 struct cam_sim *sim = NULL;
151 struct cam_path *path = NULL;
152 fcp = FCPORT(ocs, chan);
157 callout_drain(&fcp->ldt);
158 ocs_ldt_task(fcp, 0);
161 mtx_lock(&ocs->sim_lock);
162 ocs_tgt_resource_abort(ocs, &fcp->targ_rsrc_wildcard);
164 xpt_async(AC_LOST_DEVICE, path, NULL);
168 xpt_bus_deregister(cam_sim_path(sim));
170 cam_sim_free(sim, FALSE);
172 mtx_unlock(&ocs->sim_lock);
179 ocs_cam_attach(ocs_t *ocs)
181 struct cam_devq *devq = NULL;
183 uint32_t max_io = ocs_scsi_get_property(ocs, OCS_SCSI_MAX_IOS);
185 if (NULL == (devq = cam_simq_alloc(max_io))) {
186 device_printf(ocs->dev, "Can't allocate SIMQ\n");
192 if (mtx_initialized(&ocs->sim_lock) == 0) {
193 mtx_init(&ocs->sim_lock, "ocs_sim_lock", NULL, MTX_DEF);
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);
203 ocs->io_high_watermark = max_io;
209 ocs_detach_port(ocs, i);
212 cam_simq_free(ocs->devq);
214 if (mtx_initialized(&ocs->sim_lock))
215 mtx_destroy(&ocs->sim_lock);
221 ocs_cam_detach(ocs_t *ocs)
225 for (i = (ocs->num_vports); i >= 0; i--) {
226 ocs_detach_port(ocs, i);
229 cam_simq_free(ocs->devq);
231 if (mtx_initialized(&ocs->sim_lock))
232 mtx_destroy(&ocs->sim_lock);
237 /***************************************************************************
238 * Functions required by SCSI base driver API
242 * @ingroup scsi_api_target
243 * @brief Attach driver to the BSD SCSI layer (a.k.a CAM)
245 * Allocates + initializes CAM related resources and attaches to the CAM
247 * @param ocs the driver instance's software context
249 * @return 0 on success, non-zero otherwise
252 ocs_scsi_tgt_new_device(ocs_t *ocs)
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");
263 * @ingroup scsi_api_target
264 * @brief Tears down target members of ocs structure.
266 * Called by OS code when device is removed.
268 * @param ocs pointer to ocs
270 * @return returns 0 for success, a negative error code value for failure.
273 ocs_scsi_tgt_del_device(ocs_t *ocs)
280 * @ingroup scsi_api_target
281 * @brief accept new domain notification
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().
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
291 * This function will only be called if the base-driver has been enabled for
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.
297 * @param domain pointer to domain
299 * @return returns 0 for success, a negative error code value for failure.
302 ocs_scsi_tgt_new_domain(ocs_domain_t *domain)
308 * @ingroup scsi_api_target
309 * @brief accept domain lost notification
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.
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.
317 * @param domain pointer to domain
319 * @return returns 0 for success, a negative error code value for failure.
322 ocs_scsi_tgt_del_domain(ocs_domain_t *domain)
327 * @ingroup scsi_api_target
328 * @brief accept new sli port (sport) notification
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().
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.
338 * This function will only be called if the base-driver has been enabled for
341 * Note that this call is made to target-server backends,
342 * the ocs_scsi_tgt_new_domain() is called to initiator-client backends.
344 * @param sport pointer to SLI port
346 * @return returns 0 for success, a negative error code value for failure.
349 ocs_scsi_tgt_new_sport(ocs_sport_t *sport)
351 ocs_t *ocs = sport->ocs;
353 if(!sport->is_vport) {
354 sport->tgt_data = FCPORT(ocs, 0);
361 * @ingroup scsi_api_target
362 * @brief accept SLI port gone notification
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.
367 * Note that this call is made to target-server backends,
368 * the ocs_scsi_ini_del_sport() is called to initiator-client backends.
370 * @param sport pointer to SLI port
372 * @return returns 0 for success, a negative error code value for failure.
375 ocs_scsi_tgt_del_sport(ocs_sport_t *sport)
381 * @ingroup scsi_api_target
382 * @brief receive notification of a new SCSI initiator node
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.
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
392 * This function is only called if the target capability is enabled in driver.
394 * @param node pointer to new remote initiator node
396 * @return returns 0 for success, a negative error code value for failure.
401 ocs_scsi_new_initiator(ocs_node_t *node)
403 ocs_t *ocs = node->ocs;
404 struct ac_contract ac;
405 struct ac_device_changed *adc;
407 ocs_fcport *fcp = NULL;
409 fcp = node->sport->tgt_data;
411 ocs_log_err(ocs, "FCP is NULL \n");
416 * Update the IO watermark by decrementing it by the
417 * number of IOs reserved for each initiator.
419 atomic_subtract_acq_32(&ocs->io_high_watermark, OCS_RSVD_INI_IO);
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;
427 xpt_async(AC_CONTRACT, fcp->path, &ac);
433 * @ingroup scsi_api_target
434 * @brief validate new initiator
436 * Sent by base driver to validate a remote initiatiator. The target-server
437 * returns TRUE if this initiator should be accepted.
439 * This function is only called if the target capability is enabled in driver.
441 * @param node pointer to remote initiator node to validate
443 * @return TRUE if initiator should be accepted, FALSE if it should be rejected
449 ocs_scsi_validate_initiator(ocs_node_t *node)
455 * @ingroup scsi_api_target
456 * @brief Delete a SCSI initiator node
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.
462 * This function is only called if the base driver is enabled for
465 * @param node pointer node being deleted
466 * @param reason Reason why initiator is gone.
468 * @return OCS_SCSI_CALL_COMPLETE to indicate that all work was completed
473 ocs_scsi_del_initiator(ocs_node_t *node, ocs_scsi_del_initiator_reason_e reason)
475 ocs_t *ocs = node->ocs;
477 struct ac_contract ac;
478 struct ac_device_changed *adc;
479 ocs_fcport *fcp = NULL;
481 fcp = node->sport->tgt_data;
483 ocs_log_err(ocs, "FCP is NULL \n");
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;
493 xpt_async(AC_CONTRACT, fcp->path, &ac);
495 if (reason == OCS_SCSI_INITIATOR_MISSING) {
496 return OCS_SCSI_CALL_COMPLETE;
500 * Update the IO watermark by incrementing it by the
501 * number of IOs reserved for each initiator.
503 atomic_add_acq_32(&ocs->io_high_watermark, OCS_RSVD_INI_IO);
505 return OCS_SCSI_CALL_COMPLETE;
509 * @ingroup scsi_api_target
510 * @brief receive FCP SCSI Command
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.
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.
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
526 * @return returns 0 for success, a negative error code value for failure.
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)
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;
536 ocs_fcport *fcp = NULL;
538 fcp = node->sport->tgt_data;
540 ocs_log_err(ocs, "FCP is NULL \n");
544 atomic_add_acq_32(&ocs->io_in_use, 1);
546 /* set target io timeout */
547 io->timeout = ocs->target_io_timer_sec;
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);
553 atomic_store_rel_32(&io->node->tgt_node.busy_sent, FALSE);
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;
563 atio = (struct ccb_accept_tio *)STAILQ_FIRST(&trsrc->atio);
567 STAILQ_REMOVE_HEAD(&trsrc->atio, sim_links.stqe);
569 atio->ccb_h.status = CAM_CDB_RECVD;
570 atio->ccb_h.target_lun = lun;
573 atio->init_id = node->instance_index;
574 atio->tag_id = io->tag;
575 atio->ccb_h.ccb_io_ptr = io;
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;
586 atio->tag_action = CAM_TAG_ACTION_NONE;
587 atio->priority = (flags & OCS_SCSI_PRIORITY_MASK) >>
588 OCS_SCSI_PRIORITY_SHIFT;
590 atio->cdb_len = cdb_len;
591 ocs_memcpy(atio->cdb_io.cdb_bytes, cdb, cdb_len);
593 io->tgt_io.flags = 0;
594 io->tgt_io.state = OCS_CAM_IO_COMMAND;
595 io->tgt_io.lun = lun;
597 xpt_done((union ccb *)atio);
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));
607 io->tgt_io.state = OCS_CAM_IO_MAX;
608 ocs_target_io_free(io);
615 * @ingroup scsi_api_target
616 * @brief receive FCP SCSI Command with first burst data.
618 * Receive a new FCP SCSI command from the base driver with first burst data.
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
628 * @return returns 0 for success, a negative error code value for failure.
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)
639 * @ingroup scsi_api_target
640 * @brief receive a TMF command IO
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()
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.
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.
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)
659 * @return returns 0 for success, a negative error code value for failure.
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)
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;
669 ocs_fcport *fcp = NULL;
671 fcp = node->sport->tgt_data;
673 ocs_log_err(ocs, "FCP is NULL \n");
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;
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");
687 inot = (struct ccb_immediate_notify *)STAILQ_FIRST(&trsrc->inot);
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));
697 ocs_scsi_io_complete(abortio);
699 ocs_scsi_io_complete(tmfio);
700 goto ocs_scsi_recv_tmf_out;
703 tmfio->tgt_io.app = abortio;
705 STAILQ_REMOVE_HEAD(&trsrc->inot, sim_links.stqe);
707 inot->tag_id = tmfio->tag;
708 inot->seq_id = tmfio->tag;
710 if ((lun < OCS_MAX_LUN) && fcp->targ_rsrc[lun].enabled) {
711 inot->initiator_id = node->instance_index;
713 inot->initiator_id = CAM_TARGET_WILDCARD;
716 inot->ccb_h.status = CAM_MESSAGE_RECV;
717 inot->ccb_h.target_lun = lun;
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;
728 case OCS_SCSI_TMF_QUERY_TASK_SET:
729 device_printf(ocs->dev,
730 "%s: OCS_SCSI_TMF_QUERY_TASK_SET not supported\n",
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;
736 case OCS_SCSI_TMF_ABORT_TASK_SET:
737 inot->arg = MSG_ABORT_TASK_SET;
739 case OCS_SCSI_TMF_CLEAR_TASK_SET:
740 inot->arg = MSG_CLEAR_TASK_SET;
742 case OCS_SCSI_TMF_QUERY_ASYNCHRONOUS_EVENT:
743 inot->arg = MSG_QUERY_ASYNC_EVENT;
745 case OCS_SCSI_TMF_LOGICAL_UNIT_RESET:
746 inot->arg = MSG_LOGICAL_UNIT_RESET;
748 case OCS_SCSI_TMF_CLEAR_ACA:
749 inot->arg = MSG_CLEAR_ACA;
751 case OCS_SCSI_TMF_TARGET_RESET:
752 inot->arg = MSG_TARGET_RESET;
755 device_printf(ocs->dev, "%s: unsupported TMF %#x\n",
757 STAILQ_INSERT_TAIL(&trsrc->inot, &inot->ccb_h, sim_links.stqe);
758 goto ocs_scsi_recv_tmf_out;
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,
770 xpt_done((union ccb *)inot);
773 abortio->tgt_io.flags |= OCS_CAM_IO_F_ABORT_DEV;
774 rc = ocs_scsi_tgt_abort_io(abortio, ocs_io_abort_cb, tmfio);
777 ocs_scsi_recv_tmf_out:
782 * @ingroup scsi_api_initiator
783 * @brief Initializes any initiator fields on the ocs structure.
785 * Called by OS initialization code when a new device is discovered.
787 * @param ocs pointer to ocs
789 * @return returns 0 for success, a negative error code value for failure.
792 ocs_scsi_ini_new_device(ocs_t *ocs)
799 * @ingroup scsi_api_initiator
800 * @brief Tears down initiator members of ocs structure.
802 * Called by OS code when device is removed.
804 * @param ocs pointer to ocs
806 * @return returns 0 for success, a negative error code value for failure.
810 ocs_scsi_ini_del_device(ocs_t *ocs)
817 * @ingroup scsi_api_initiator
818 * @brief accept new domain notification
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().
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.
828 * This function will only be called if the base-driver has been enabled for
829 * initiator capability.
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.
834 * @param domain pointer to domain
836 * @return returns 0 for success, a negative error code value for failure.
839 ocs_scsi_ini_new_domain(ocs_domain_t *domain)
845 * @ingroup scsi_api_initiator
846 * @brief accept domain lost notification
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.
851 * This function will only be called if the base-driver has been enabled for
852 * initiator capability.
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.
857 * @param domain pointer to domain
859 * @return returns 0 for success, a negative error code value for failure.
862 ocs_scsi_ini_del_domain(ocs_domain_t *domain)
867 * @ingroup scsi_api_initiator
868 * @brief accept new sli port notification
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().
874 * This function will only be called if the base-driver has been enabled for
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.
880 * @param sport pointer to sport
882 * @return returns 0 for success, a negative error code value for failure.
885 ocs_scsi_ini_new_sport(ocs_sport_t *sport)
887 ocs_t *ocs = sport->ocs;
888 ocs_fcport *fcp = FCPORT(ocs, 0);
890 if (!sport->is_vport) {
891 sport->tgt_data = fcp;
892 fcp->fc_id = sport->fc_id;
899 * @ingroup scsi_api_initiator
900 * @brief accept sli port gone notification
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.
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.
908 * @param sport pointer to SLI port
910 * @return returns 0 for success, a negative error code value for failure.
913 ocs_scsi_ini_del_sport(ocs_sport_t *sport)
915 ocs_t *ocs = sport->ocs;
916 ocs_fcport *fcp = FCPORT(ocs, 0);
918 if (!sport->is_vport) {
924 ocs_scsi_sport_deleted(ocs_sport_t *sport)
926 ocs_t *ocs = sport->ocs;
927 ocs_fcport *fcp = NULL;
929 ocs_xport_stats_t value;
931 if (!sport->is_vport) {
935 fcp = sport->tgt_data;
937 ocs_xport_status(ocs->xport, OCS_XPORT_PORT_STATUS, &value);
939 if (value.value == 0) {
940 ocs_log_debug(ocs, "PORT offline,.. skipping\n");
944 if ((fcp->role != KNOB_ROLE_NONE)) {
945 if(fcp->vport->sport != NULL) {
946 ocs_log_debug(ocs,"sport is not NULL, skipping\n");
950 ocs_sport_vport_alloc(ocs->domain, fcp->vport);
957 ocs_tgt_find(ocs_fcport *fcp, ocs_node_t *node)
959 ocs_fc_target_t *tgt = NULL;
962 for (i = 0; i < OCS_MAX_TARGETS; i++) {
965 if (tgt->state == OCS_TGT_STATE_NONE)
968 if (ocs_node_get_wwpn(node) == tgt->wwpn) {
977 * @ingroup scsi_api_initiator
978 * @brief receive notification of a new SCSI target node
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.
984 * This function is only called if the base driver is enabled for
985 * initiator capability.
987 * @param node pointer to new remote initiator node
995 ocs_update_tgt(ocs_node_t *node, ocs_fcport *fcp, uint32_t tgt_id)
997 ocs_fc_target_t *tgt = NULL;
999 tgt = &fcp->tgt[tgt_id];
1001 tgt->node_id = node->instance_index;
1002 tgt->state = OCS_TGT_STATE_VALID;
1004 tgt->port_id = node->rnode.fc_id;
1005 tgt->wwpn = ocs_node_get_wwpn(node);
1006 tgt->wwnn = ocs_node_get_wwnn(node);
1011 ocs_add_new_tgt(ocs_node_t *node, ocs_fcport *fcp)
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)
1022 if (NULL == (ccb = xpt_alloc_ccb_nowait())) {
1023 device_printf(ocs->dev, "%s: ccb allocation failed\n", __func__);
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)) {
1031 ocs->dev, "%s: target path creation failed\n", __func__);
1036 ocs_update_tgt(node, fcp, i);
1042 ocs_scsi_new_target(ocs_node_t *node)
1044 ocs_fcport *fcp = NULL;
1047 fcp = node->sport->tgt_data;
1049 printf("%s:FCP is NULL \n", __func__);
1053 i = ocs_tgt_find(fcp, node);
1056 ocs_add_new_tgt(node, fcp);
1060 ocs_update_tgt(node, fcp, i);
1065 ocs_delete_target(ocs_t *ocs, ocs_fcport *fcp, int tgt)
1067 struct cam_path *cpath = NULL;
1070 device_printf(ocs->dev, "%s: calling with NULL sim\n", __func__);
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);
1078 xpt_free_path(cpath);
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.
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.
1096 ocs_fcport *fcp = arg;
1097 taskqueue_enqueue(taskqueue_thread, &fcp->ltask);
1101 ocs_ldt_task(void *arg, int pending)
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;
1108 for (i = 0; i < OCS_MAX_TARGETS; i++) {
1111 if (tgt->state != OCS_TGT_STATE_LOST) {
1115 if ((tgt->gone_timer != 0) && (ocs->attached)){
1116 tgt->gone_timer -= 1;
1121 ocs_delete_target(ocs, fcp, i);
1123 tgt->state = OCS_TGT_STATE_NONE;
1127 callout_reset(&fcp->ldt, hz, ocs_ldt, fcp);
1129 callout_deactivate(&fcp->ldt);
1135 * @ingroup scsi_api_initiator
1136 * @brief Delete a SCSI target node
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.
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
1146 * This function is only called if the base driver is enabled for
1147 * initiator capability.
1149 * @param node pointer node being deleted
1150 * @param reason reason for deleting the target
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.
1158 ocs_scsi_del_target(ocs_node_t *node, ocs_scsi_del_target_reason_e reason)
1160 struct ocs_softc *ocs = node->ocs;
1161 ocs_fcport *fcp = NULL;
1162 ocs_fc_target_t *tgt = NULL;
1166 ocs_log_err(ocs,"OCS is NULL \n");
1170 fcp = node->sport->tgt_data;
1172 ocs_log_err(ocs,"FCP is NULL \n");
1176 tgt_id = ocs_tgt_find(fcp, node);
1178 ocs_log_err(ocs,"target is invalid\n");
1182 tgt = &fcp->tgt[tgt_id];
1184 // IF in shutdown delete target.
1185 if(!ocs->attached) {
1186 ocs_delete_target(ocs, fcp, tgt_id);
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);
1199 * @brief Initialize SCSI IO
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
1205 * @param io pointer to SCSI IO object
1207 * @return returns 0 for success, a negative error code value for failure.
1210 ocs_scsi_tgt_io_init(ocs_io_t *io)
1216 * @brief Uninitialize SCSI IO
1218 * Uninitialize target server private data in a SCSI io object
1220 * @param io pointer to SCSI IO object
1222 * @return returns 0 for success, a negative error code value for failure.
1225 ocs_scsi_tgt_io_exit(ocs_io_t *io)
1231 * @brief Initialize SCSI IO
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
1237 * @param io pointer to SCSI IO object
1239 * @return returns 0 for success, a negative error code value for failure.
1242 ocs_scsi_ini_io_init(ocs_io_t *io)
1248 * @brief Uninitialize SCSI IO
1250 * Uninitialize initiator client private data in a SCSI io object
1252 * @param io pointer to SCSI IO object
1254 * @return returns 0 for success, a negative error code value for failure.
1257 ocs_scsi_ini_io_exit(ocs_io_t *io)
1262 * End of functions required by SCSI base driver API
1263 ***************************************************************************/
1265 static __inline void
1266 ocs_set_ccb_status(union ccb *ccb, cam_status status)
1268 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
1269 ccb->ccb_h.status |= status;
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)
1277 ocs_target_io_free(io);
1283 * @brief send SCSI task set full or busy status
1285 * A SCSI task set full or busy response is sent depending on whether
1286 * another IO is already active on the LUN.
1288 * @param io pointer to IO context
1290 * @return returns 0 for success, a negative error code value for failure.
1294 ocs_task_set_full_or_busy(ocs_io_t *io)
1296 ocs_scsi_cmd_resp_t rsp = { 0 };
1297 ocs_t *ocs = io->ocs;
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.
1303 * if 'busy sent' is FALSE, set it to TRUE and send BUSY
1304 * otherwise send FULL
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);
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);
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);
1325 else if (rsp.scsi_status == SCSI_STATUS_BUSY) {
1326 /* Log Busy Message */
1327 ocs_log_info(ocs, "OCS CAM SCSI BUSY\n");
1331 /* Send the response */
1333 ocs_scsi_send_resp(io, 0, &rsp, ocs_task_set_full_or_busy_cb, NULL);
1338 * @brief Process target IO completions
1341 * @param scsi_status did the IO complete successfully
1343 * @param arg application specific pointer provided in the call to ocs_target_io()
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)
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;
1358 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
1360 if (CAM_DIR_NONE != cam_dir) {
1361 bus_dmasync_op_t op;
1363 if (CAM_DIR_IN == cam_dir) {
1364 op = BUS_DMASYNC_POSTREAD;
1366 op = BUS_DMASYNC_POSTWRITE;
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);
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;
1384 resp.residual = io->exp_xfer_len - io->transferred;
1386 return ocs_scsi_send_resp(io, 0, &resp, ocs_scsi_target_io_cb, ccb);
1389 switch (scsi_status) {
1390 case OCS_SCSI_STATUS_GOOD:
1391 ocs_set_ccb_status(ccb, CAM_REQ_CMP);
1393 case OCS_SCSI_STATUS_ABORTED:
1394 ocs_set_ccb_status(ccb, CAM_REQ_ABORTED);
1397 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
1401 if ((io->tgt_io.flags & OCS_CAM_IO_F_ABORT_NOTIFY) == 0) {
1402 ocs_target_io_free(io);
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);*/
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.
1421 ocs_io_abort_cb(ocs_io_t *io, ocs_scsi_io_status_e scsi_status, uint32_t flags, void *arg)
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;
1430 io->tgt_io.flags &= ~OCS_CAM_IO_F_ABORT_DEV;
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:
1437 case OCS_SCSI_STATUS_NO_IO:
1440 device_printf(ocs->dev, "%s: unhandled status %d\n",
1441 __func__, scsi_status);
1442 tmf_resp = OCS_SCSI_TMF_FUNCTION_REJECTED;
1446 ocs_scsi_send_tmf_resp(tmfio, tmf_resp, NULL, ocs_target_tmf_cb, NULL);
1453 * @brief Process initiator IO completions
1456 * @param scsi_status did the IO complete successfully
1457 * @param rsp pointer to response buffer
1459 * @param arg application specific pointer provided in the call to ocs_target_io()
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)
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;
1474 if (CAM_DIR_NONE != cam_dir) {
1475 bus_dmasync_op_t op;
1477 if (CAM_DIR_IN == cam_dir) {
1478 op = BUS_DMASYNC_POSTREAD;
1480 op = BUS_DMASYNC_POSTWRITE;
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);
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;
1494 ccb_status = CAM_REQ_CMP;
1496 csio->resid = rsp->residual;
1499 * If we've already got a SCSI error, prefer that because it
1500 * will have more detail.
1502 if ((rsp->residual < 0) && (ccb_status == CAM_REQ_CMP)) {
1503 ccb_status = CAM_DATA_RUN_ERR;
1506 if ((rsp->sense_data_length) &&
1507 !(ccb->ccb_h.flags & (CAM_SENSE_PHYS | CAM_SENSE_PTR))) {
1508 uint32_t sense_len = 0;
1510 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
1511 if (rsp->sense_data_length < csio->sense_len) {
1513 csio->sense_len - rsp->sense_data_length;
1514 sense_len = rsp->sense_data_length;
1516 csio->sense_resid = 0;
1517 sense_len = csio->sense_len;
1519 ocs_memcpy(&csio->sense_data, rsp->sense_data, sense_len);
1521 } else if (scsi_status != OCS_SCSI_STATUS_GOOD) {
1522 ccb_status = CAM_REQ_CMP_ERR;
1524 ccb_status = CAM_REQ_CMP;
1527 ocs_set_ccb_status(ccb, ccb_status);
1529 ocs_scsi_io_free(io);
1531 csio->ccb_h.ccb_io_ptr = NULL;
1532 csio->ccb_h.ccb_ocs_ptr = NULL;
1534 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
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);
1548 * @brief Load scatter-gather list entries into an IO
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).
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
1561 ocs_scsi_dmamap_load(void *arg, bus_dma_segment_t *seg, int nseg, int error)
1563 ocs_dmamap_load_arg_t *sglarg = (ocs_dmamap_load_arg_t*) arg;
1566 printf("%s: seg=%p nseg=%d error=%d\n",
1567 __func__, seg, nseg, error);
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);
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;
1585 sglarg->sgl_count = c;
1592 * @brief Build a scatter-gather list from a CAM CCB
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
1600 * @return 0 on success, non-zero otherwise
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)
1606 ocs_dmamap_load_arg_t dmaarg;
1609 if (!ocs || !ccb || !io || !sgl) {
1610 printf("%s: bad param o=%p c=%p i=%p s=%p\n", __func__,
1615 io->tgt_io.flags &= ~OCS_CAM_IO_F_DMAPPED;
1618 dmaarg.sgl_count = 0;
1619 dmaarg.sgl_max = sgl_max;
1622 err = bus_dmamap_load_ccb(ocs->buf_dmat, io->tgt_io.dmap, ccb,
1623 ocs_scsi_dmamap_load, &dmaarg, 0);
1625 if (err || dmaarg.rc) {
1627 ocs->dev, "%s: bus_dmamap_load_ccb error (%d %d)\n",
1628 __func__, err, dmaarg.rc);
1632 io->tgt_io.flags |= OCS_CAM_IO_F_DMAPPED;
1633 return dmaarg.sgl_count;
1638 * @brief Send a target IO
1640 * @param ocs the driver instance's software context
1641 * @param ccb pointer to the CCB
1643 * @return 0 on success, non-zero otherwise
1646 ocs_target_io(struct ocs_softc *ocs, union ccb *ccb)
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;
1655 io = ocs_scsi_find_io(ocs, csio->tag_id);
1657 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
1658 panic("bad tag value");
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;
1670 if (ccb->ccb_h.flags & CAM_SEND_STATUS) {
1671 ocs_set_ccb_status(ccb, CAM_REQ_CMP);
1672 ocs_target_io_free(io);
1676 ocs_set_ccb_status(ccb, CAM_REQ_ABORTED);
1681 io->tgt_io.app = ccb;
1683 ocs_set_ccb_status(ccb, CAM_REQ_INPROG);
1684 ccb->ccb_h.status |= CAM_SIM_QUEUED;
1686 csio->ccb_h.ccb_ocs_ptr = ocs;
1687 csio->ccb_h.ccb_io_ptr = io;
1689 if ((sendstatus && (xferlen == 0))) {
1690 ocs_scsi_cmd_resp_t resp = { 0 };
1692 ocs_assert(ccb->ccb_h.flags & CAM_SEND_STATUS, -1);
1694 io->tgt_io.state = OCS_CAM_IO_RESP;
1696 resp.scsi_status = csio->scsi_status;
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;
1703 resp.residual = io->exp_xfer_len - io->transferred;
1704 rc = ocs_scsi_send_resp(io, 0, &resp, ocs_scsi_target_io_cb, ccb);
1706 } else if (xferlen != 0) {
1707 ocs_scsi_sgl_t *sgl;
1708 int32_t sgl_count = 0;
1710 io->tgt_io.state = OCS_CAM_IO_DATA;
1713 io->tgt_io.sendresp = 1;
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);
1728 device_printf(ocs->dev, "%s:"
1729 " unknown CAM direction %#x\n",
1731 ocs_set_ccb_status(ccb, CAM_REQ_INVALID);
1735 device_printf(ocs->dev, "%s: building SGL failed\n",
1737 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
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);
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);
1762 ocs_target_tmf_cb(ocs_io_t *io, ocs_scsi_io_status_e scsi_status, uint32_t flags,
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);
1775 * @brief Send an initiator IO
1777 * @param ocs the driver instance's software context
1778 * @param ccb pointer to the CCB
1780 * @return 0 on success, non-zero otherwise
1783 ocs_initiator_io(struct ocs_softc *ocs, union ccb *ccb)
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;
1794 fcp = FCPORT(ocs, cam_sim_bus(xpt_path_sim((ccb)->ccb_h.path)));
1796 if (fcp->tgt[ccb_h->target_id].state == OCS_TGT_STATE_LOST) {
1797 device_printf(ocs->dev, "%s: device LOST %d\n", __func__,
1799 return CAM_REQUEUE_REQ;
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__,
1805 return CAM_SEL_TIMEOUT;
1808 node = ocs_node_get_instance(ocs, fcp->tgt[ccb_h->target_id].node_id);
1810 device_printf(ocs->dev, "%s: no device %d\n", __func__,
1812 return CAM_SEL_TIMEOUT;
1816 device_printf(ocs->dev, "%s: not target device %d\n", __func__,
1818 return CAM_SEL_TIMEOUT;
1821 io = ocs_scsi_io_alloc(node, OCS_SCSI_IO_ROLE_ORIGINATOR);
1823 device_printf(ocs->dev, "%s: unable to alloc IO\n", __func__);
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;
1831 csio->ccb_h.ccb_ocs_ptr = ocs;
1832 csio->ccb_h.ccb_io_ptr = io;
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__);
1842 if (ccb->ccb_h.timeout == CAM_TIME_INFINITY) {
1844 } else if (ccb->ccb_h.timeout == CAM_TIME_DEFAULT) {
1845 io->timeout = OCS_CAM_IO_TIMEOUT;
1847 io->timeout = ccb->ccb_h.timeout;
1850 switch (csio->tag_action) {
1851 case MSG_HEAD_OF_Q_TAG:
1852 flags = OCS_SCSI_CMD_HEAD_OF_QUEUE;
1854 case MSG_ORDERED_Q_TAG:
1855 flags = OCS_SCSI_CMD_ORDERED;
1858 flags = OCS_SCSI_CMD_ACA;
1860 case CAM_TAG_ACTION_NONE:
1861 case MSG_SIMPLE_Q_TAG:
1863 flags = OCS_SCSI_CMD_SIMPLE;
1866 flags |= (csio->priority << OCS_SCSI_PRIORITY_SHIFT) &
1867 OCS_SCSI_PRIORITY_MASK;
1869 switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
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,
1875 ocs_scsi_initiator_io_cb, ccb, flags);
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,
1883 sgl, sgl_count, csio->dxfer_len,
1884 ocs_scsi_initiator_io_cb, ccb, flags);
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,
1892 sgl, sgl_count, csio->dxfer_len,
1893 ocs_scsi_initiator_io_cb, ccb, flags);
1896 panic("%s invalid data direction %08x\n", __func__,
1905 ocs_fcp_change_role(struct ocs_softc *ocs, ocs_fcport *fcp, uint32_t new_role)
1908 uint32_t rc = 0, was = 0, i = 0;
1909 ocs_vport_spec_t *vport = fcp->vport;
1911 for (was = 0, i = 0; i < (ocs->num_vports + 1); i++) {
1912 if (FCPORT(ocs, i)->role != KNOB_ROLE_NONE)
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;
1923 vport->enable_ini = (new_role & KNOB_ROLE_INITIATOR)? 1:0;
1924 vport->enable_tgt = (new_role & KNOB_ROLE_TARGET)? 1:0;
1927 rc = ocs_xport_control(ocs->xport, OCS_XPORT_PORT_OFFLINE);
1929 ocs_log_debug(ocs, "port offline failed : %d\n", rc);
1932 rc = ocs_xport_control(ocs->xport, OCS_XPORT_PORT_ONLINE);
1934 ocs_log_debug(ocs, "port online failed : %d\n", rc);
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);
1948 fcp->role = new_role;
1950 vport->enable_ini = (new_role & KNOB_ROLE_INITIATOR)? 1:0;
1951 vport->enable_tgt = (new_role & KNOB_ROLE_TARGET)? 1:0;
1953 if (fcp->role != KNOB_ROLE_NONE) {
1954 return ocs_sport_vport_alloc(ocs->domain, vport);
1962 * @brief Process CAM actions
1964 * The driver supplies this routine to the CAM during intialization and
1965 * is the main entry point for processing CAM Control Blocks (CCB)
1967 * @param sim pointer to the SCSI Interface Module
1968 * @param ccb CAM control block
1971 * - populate path inquiry data via info retrieved from SLI port
1974 ocs_action(struct cam_sim *sim, union ccb *ccb)
1976 struct ocs_softc *ocs = (struct ocs_softc *)cam_sim_softc(sim);
1977 struct ccb_hdr *ccb_h = &ccb->ccb_h;
1980 bus = cam_sim_bus(sim);
1982 switch (ccb_h->func_code) {
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;
1993 rc = ocs_initiator_io(ocs, ccb);
1995 ocs_set_ccb_status(ccb, CAM_REQ_INPROG | CAM_SIM_QUEUED);
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;
2006 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
2008 ocs_set_ccb_status(ccb, rc);
2010 ocs_set_ccb_status(ccb, CAM_SEL_TIMEOUT);
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);
2022 ocs_xport_stats_t value;
2024 cpi->version_num = 1;
2026 cpi->protocol = PROTO_SCSI;
2027 cpi->protocol_version = SCSI_REV_SPC;
2029 if (ocs->ocs_xport == OCS_XPORT_FC) {
2030 cpi->transport = XPORT_FC;
2032 cpi->transport = XPORT_UNKNOWN;
2035 cpi->transport_version = 0;
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 */
2041 wwn = *((uint64_t *)ocs_scsi_get_property_ptr(ocs, OCS_SCSI_WWPN));
2042 fc->wwpn = be64toh(wwn);
2044 wwn = *((uint64_t *)ocs_scsi_get_property_ptr(ocs, OCS_SCSI_WWNN));
2045 fc->wwnn = be64toh(wwn);
2047 fc->port = fcp->fc_id;
2049 if (ocs->config_tgt) {
2051 PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
2054 cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED;
2055 cpi->hba_misc |= PIM_EXTLUNS | PIM_NOSCAN;
2057 cpi->hba_inquiry = PI_TAG_ABLE;
2058 cpi->max_target = OCS_MAX_TARGETS;
2059 cpi->initiator_id = ocs->max_remote_nodes + 1;
2061 if (!ocs->enable_ini) {
2062 cpi->hba_misc |= PIM_NOINITIATOR;
2065 cpi->max_lun = OCS_MAX_LUN;
2066 cpi->bus_id = cam_sim_bus(sim);
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;
2072 /* Calculate the max IO supported
2073 * Worst case would be an OS page per SGL entry */
2075 cpi->maxio = PAGE_SIZE *
2076 (ocs_scsi_get_property(ocs, OCS_SCSI_MAX_SGL) - 1);
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);
2083 cpi->ccb_h.status = CAM_REQ_CMP;
2087 case XPT_GET_TRAN_SETTINGS:
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;
2096 if (ocs->ocs_xport != OCS_XPORT_FC) {
2097 ocs_set_ccb_status(ccb, CAM_REQ_INVALID);
2102 if (cts->ccb_h.target_id > OCS_MAX_TARGETS) {
2103 ocs_set_ccb_status(ccb, CAM_DEV_NOT_THERE);
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);
2115 cts->protocol = PROTO_SCSI;
2116 cts->protocol_version = SCSI_REV_SPC2;
2117 cts->transport = XPORT_FC;
2118 cts->transport_version = 2;
2120 scsi->valid = CTS_SCSI_VALID_TQ;
2121 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
2124 ocs_xport_status(ocs->xport, OCS_XPORT_LINK_SPEED, &value);
2125 fc->bitrate = value.value * 100;
2127 fc->wwpn = tgt->wwpn;
2129 fc->wwnn = tgt->wwnn;
2131 fc->port = tgt->port_id;
2133 fc->valid = CTS_FC_VALID_SPEED |
2138 ocs_set_ccb_status(ccb, CAM_REQ_CMP);
2142 case XPT_SET_TRAN_SETTINGS:
2143 ocs_set_ccb_status(ccb, CAM_REQ_CMP);
2147 case XPT_CALC_GEOMETRY:
2148 cam_calc_geometry(&ccb->ccg, TRUE);
2152 case XPT_GET_SIM_KNOB:
2154 struct ccb_sim_knob *knob = &ccb->knob;
2156 ocs_fcport *fcp = FCPORT(ocs, bus);
2158 if (ocs->ocs_xport != OCS_XPORT_FC) {
2159 ocs_set_ccb_status(ccb, CAM_REQ_INVALID);
2165 wwn = *((uint64_t *)ocs_scsi_get_property_ptr(ocs,
2167 knob->xport_specific.fc.wwnn = be64toh(wwn);
2169 wwn = *((uint64_t *)ocs_scsi_get_property_ptr(ocs,
2171 knob->xport_specific.fc.wwpn = be64toh(wwn);
2173 knob->xport_specific.fc.wwnn = fcp->vport->wwnn;
2174 knob->xport_specific.fc.wwpn = fcp->vport->wwpn;
2177 knob->xport_specific.fc.role = fcp->role;
2178 knob->xport_specific.fc.valid = KNOB_VALID_ADDRESS |
2181 ocs_set_ccb_status(ccb, CAM_REQ_CMP);
2185 case XPT_SET_SIM_KNOB:
2187 struct ccb_sim_knob *knob = &ccb->knob;
2188 bool role_changed = FALSE;
2189 ocs_fcport *fcp = FCPORT(ocs, bus);
2191 if (ocs->ocs_xport != OCS_XPORT_FC) {
2192 ocs_set_ccb_status(ccb, CAM_REQ_INVALID);
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",
2201 (unsigned long long)knob->xport_specific.fc.wwnn,
2202 (unsigned long long)knob->xport_specific.fc.wwpn);
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;
2212 case KNOB_ROLE_TARGET:
2213 if (fcp->role != KNOB_ROLE_TARGET) {
2214 role_changed = TRUE;
2217 case KNOB_ROLE_INITIATOR:
2218 if (fcp->role != KNOB_ROLE_INITIATOR) {
2219 role_changed = TRUE;
2222 case KNOB_ROLE_BOTH:
2223 if (fcp->role != KNOB_ROLE_BOTH) {
2224 role_changed = TRUE;
2228 device_printf(ocs->dev,
2229 "%s: XPT_SET_SIM_KNOB unsupported role: %d\n",
2230 __func__, knob->xport_specific.fc.role);
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);
2238 ocs_fcp_change_role(ocs, fcp, knob->xport_specific.fc.role);
2244 ocs_set_ccb_status(ccb, CAM_REQ_CMP);
2250 union ccb *accb = ccb->cab.abort_ccb;
2252 switch (accb->ccb_h.func_code) {
2253 case XPT_ACCEPT_TARGET_IO:
2254 ocs_abort_atio(ocs, ccb);
2256 case XPT_IMMEDIATE_NOTIFY:
2257 ocs_abort_inot(ocs, ccb);
2260 rc = ocs_abort_initiator_io(ocs, accb);
2262 ccb->ccb_h.status = CAM_UA_ABORT;
2264 ccb->ccb_h.status = CAM_REQ_CMP;
2269 printf("abort of unknown func %#x\n",
2270 accb->ccb_h.func_code);
2271 ccb->ccb_h.status = CAM_REQ_INVALID;
2277 if (ocs_xport_control(ocs->xport, OCS_XPORT_PORT_OFFLINE) == 0) {
2278 rc = ocs_xport_control(ocs->xport, OCS_XPORT_PORT_ONLINE);
2280 ocs_log_debug(ocs, "Failed to bring port online"
2283 ocs_set_ccb_status(ccb, CAM_REQ_CMP);
2285 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
2291 ocs_node_t *node = NULL;
2292 ocs_io_t *io = NULL;
2294 ocs_fcport *fcp = FCPORT(ocs, bus);
2296 node = ocs_node_get_instance(ocs, fcp->tgt[ccb_h->target_id].node_id);
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);
2305 io = ocs_scsi_io_alloc(node, OCS_SCSI_IO_ROLE_ORIGINATOR);
2307 device_printf(ocs->dev, "%s: unable to alloc IO\n",
2309 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
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*/);
2320 ocs_set_ccb_status(ccb, CAM_REQ_CMP_ERR);
2322 ocs_set_ccb_status(ccb, CAM_REQ_CMP);
2325 if (node->fcp2device) {
2326 ocs_reset_crn(node, ccb_h->target_lun);
2332 case XPT_EN_LUN: /* target support */
2334 ocs_tgt_resource_t *trsrc = NULL;
2335 uint32_t status = 0;
2336 ocs_fcport *fcp = FCPORT(ocs, bus);
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);
2343 trsrc = ocs_tgt_resource_get(fcp, &ccb->ccb_h, &status);
2345 trsrc->enabled = ccb->cel.enable;
2347 /* Abort all ATIO/INOT on LUN disable */
2348 if (trsrc->enabled == FALSE) {
2349 ocs_tgt_resource_abort(ocs, trsrc);
2351 STAILQ_INIT(&trsrc->atio);
2352 STAILQ_INIT(&trsrc->inot);
2354 status = CAM_REQ_CMP;
2357 ocs_set_ccb_status(ccb, status);
2362 * The flow of target IOs in CAM is:
2363 * - CAM supplies a number of CCBs to the driver used for received
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
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) */
2379 ocs_tgt_resource_t *trsrc = NULL;
2380 uint32_t status = 0;
2381 ocs_fcport *fcp = FCPORT(ocs, bus);
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);
2392 if (XPT_ACCEPT_TARGET_IO == ccb->ccb_h.func_code) {
2393 struct ccb_accept_tio *atio = NULL;
2395 atio = (struct ccb_accept_tio *)ccb;
2396 atio->init_id = 0x0badbeef;
2397 atio->tag_id = 0xdeadc0de;
2399 STAILQ_INSERT_TAIL(&trsrc->atio, &ccb->ccb_h,
2402 STAILQ_INSERT_TAIL(&trsrc->inot, &ccb->ccb_h,
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);
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.
2416 case XPT_NOTIFY_ACKNOWLEDGE:
2418 ocs_io_t *io = NULL;
2419 ocs_io_t *abortio = NULL;
2421 /* Get the IO reference for this tag */
2422 io = ocs_scsi_find_io(ocs, ccb->cna2.tag_id);
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);
2432 abortio = io->tgt_io.app;
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 */
2442 ocs_scsi_send_tmf_resp(io,
2443 OCS_SCSI_TMF_FUNCTION_COMPLETE,
2444 NULL, ocs_target_tmf_cb, NULL);
2447 ocs_set_ccb_status(ccb, CAM_REQ_CMP);
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);
2460 device_printf(ocs->dev, "unhandled func_code = %#x\n",
2462 ccb_h->status = CAM_REQ_INVALID;
2470 * @brief Process events
2472 * @param sim pointer to the SCSI Interface Module
2476 ocs_poll(struct cam_sim *sim)
2478 printf("%s\n", __func__);
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)
2487 switch (scsi_status) {
2488 case OCS_SCSI_STATUS_GOOD:
2489 case OCS_SCSI_STATUS_NO_IO:
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");
2498 if (rsp->response_data[3] != 0) {
2499 ocs_log_test(io->ocs, "TMF status %08x\n",
2500 be32toh(*((uint32_t *)rsp->response_data)));
2506 ocs_log_test(io->ocs, "status=%#x\n", scsi_status);
2510 ocs_scsi_io_free(io);
2516 * @brief lookup target resource structure
2518 * Arbitrarily support
2519 * - wildcard target ID + LU
2520 * - 0 target ID + non-wildcard LU
2522 * @param ocs the driver instance's software context
2523 * @param ccb_h pointer to the CCB header
2524 * @param status returned status value
2526 * @return pointer to the target resource, NULL if none available (e.g. if LU
2529 static ocs_tgt_resource_t *ocs_tgt_resource_get(ocs_fcport *fcp,
2530 struct ccb_hdr *ccb_h, uint32_t *status)
2532 target_id_t tid = ccb_h->target_id;
2533 lun_id_t lun = ccb_h->target_lun;
2535 if (CAM_TARGET_WILDCARD == tid) {
2536 if (CAM_LUN_WILDCARD != lun) {
2537 *status = CAM_LUN_INVALID;
2540 return &fcp->targ_rsrc_wildcard;
2542 if (lun < OCS_MAX_LUN) {
2543 return &fcp->targ_rsrc[lun];
2545 *status = CAM_LUN_INVALID;
2553 ocs_tgt_resource_abort(struct ocs_softc *ocs, ocs_tgt_resource_t *trsrc)
2555 union ccb *ccb = NULL;
2560 ccb = (union ccb *)STAILQ_FIRST(&trsrc->atio);
2562 STAILQ_REMOVE_HEAD(&trsrc->atio, sim_links.stqe);
2563 ccb->ccb_h.status = CAM_REQ_ABORTED;
2571 ccb = (union ccb *)STAILQ_FIRST(&trsrc->inot);
2573 STAILQ_REMOVE_HEAD(&trsrc->inot, sim_links.stqe);
2574 ccb->ccb_h.status = CAM_REQ_ABORTED;
2584 ocs_abort_atio(struct ocs_softc *ocs, union ccb *ccb)
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;
2593 int bus = cam_sim_bus(xpt_path_sim((ccb)->ccb_h.path));
2594 ocs_fcport *fcp = FCPORT(ocs, bus);
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)
2602 STAILQ_REMOVE(&trsrc->atio, cur, ccb_hdr,
2604 accb->ccb_h.status = CAM_REQ_ABORTED;
2606 ocs_set_ccb_status(ccb, CAM_REQ_CMP);
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. */
2615 aio = accb->ccb_h.ccb_io_ptr;
2617 ccb->ccb_h.status = CAM_UA_ABORT;
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 */
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);
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);
2645 ocs_abort_inot(struct ocs_softc *ocs, union ccb *ccb)
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;
2652 int bus = cam_sim_bus(xpt_path_sim((ccb)->ccb_h.path));
2653 ocs_fcport *fcp = FCPORT(ocs, bus);
2655 trsrc = ocs_tgt_resource_get(fcp, &accb->ccb_h, &status);
2657 STAILQ_FOREACH(cur, &trsrc->inot, sim_links.stqe) {
2658 if (cur != &accb->ccb_h)
2661 STAILQ_REMOVE(&trsrc->inot, cur, ccb_hdr,
2663 accb->ccb_h.status = CAM_REQ_ABORTED;
2665 ocs_set_ccb_status(ccb, CAM_REQ_CMP);
2670 ocs_set_ccb_status(ccb, CAM_UA_ABORT);
2675 ocs_abort_initiator_io(struct ocs_softc *ocs, union ccb *accb)
2678 ocs_node_t *node = NULL;
2679 ocs_io_t *io = NULL;
2681 struct ccb_scsiio *csio = &accb->csio;
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);
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);
2693 io = ocs_scsi_io_alloc(node, OCS_SCSI_IO_ROLE_ORIGINATOR);
2695 device_printf(ocs->dev,
2696 "%s: unable to alloc IO\n", __func__);
2697 ocs_set_ccb_status(accb, CAM_REQ_CMP_ERR);
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,
2707 ocs_initiator_tmf_cb, NULL/*arg*/);
2713 ocs_scsi_ini_ddump(ocs_textbuf_t *textbuf, ocs_scsi_ddump_type_e type, void *obj)
2716 case OCS_SCSI_DDUMP_DEVICE: {
2720 case OCS_SCSI_DDUMP_DOMAIN: {
2721 //ocs_domain_t *domain = obj;
2724 case OCS_SCSI_DDUMP_SPORT: {
2725 //ocs_sport_t *sport = obj;
2728 case OCS_SCSI_DDUMP_NODE: {
2729 //ocs_node_t *node = obj;
2732 case OCS_SCSI_DDUMP_IO: {
2733 //ocs_io_t *io = obj;
2743 ocs_scsi_tgt_ddump(ocs_textbuf_t *textbuf, ocs_scsi_ddump_type_e type, void *obj)
2746 case OCS_SCSI_DDUMP_DEVICE: {
2750 case OCS_SCSI_DDUMP_DOMAIN: {
2751 //ocs_domain_t *domain = obj;
2754 case OCS_SCSI_DDUMP_SPORT: {
2755 //ocs_sport_t *sport = obj;
2758 case OCS_SCSI_DDUMP_NODE: {
2759 //ocs_node_t *node = obj;
2762 case OCS_SCSI_DDUMP_IO: {
2764 char *state_str = NULL;
2766 switch (io->tgt_io.state) {
2767 case OCS_CAM_IO_FREE:
2770 case OCS_CAM_IO_COMMAND:
2771 state_str = "COMMAND";
2773 case OCS_CAM_IO_DATA:
2776 case OCS_CAM_IO_DATA_DONE:
2777 state_str = "DATA_DONE";
2779 case OCS_CAM_IO_RESP:
2783 state_str = "xxx BAD xxx";
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);
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)
2809 ocs_get_crn(ocs_node_t *node, uint8_t *crn, uint64_t lun)
2812 struct ocs_lun_crn *lcrn = NULL;
2813 idx = lun % OCS_MAX_LUN;
2815 lcrn = node->ini_node.lun_crn[idx];
2818 lcrn = ocs_malloc(node->ocs, sizeof(struct ocs_lun_crn),
2825 node->ini_node.lun_crn[idx] = lcrn;
2828 if (lcrn->lun != lun) {
2832 if (lcrn->crnseed == 0)
2835 *crn = lcrn->crnseed++;
2840 ocs_del_crn(ocs_node_t *node)
2843 struct ocs_lun_crn *lcrn = NULL;
2845 for(i = 0; i < OCS_MAX_LUN; i++) {
2846 lcrn = node->ini_node.lun_crn[i];
2848 ocs_free(node->ocs, lcrn, sizeof(*lcrn));
2856 ocs_reset_crn(ocs_node_t *node, uint64_t lun)
2859 struct ocs_lun_crn *lcrn = NULL;
2860 idx = lun % OCS_MAX_LUN;
2862 lcrn = node->ini_node.lun_crn[idx];