2 * SPDX-License-Identifier: BSD-2-Clause
6 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * * Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * * Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #include <dev/isci/isci.h>
39 #include <sys/malloc.h>
41 #include <cam/cam_periph.h>
42 #include <cam/cam_xpt_periph.h>
44 #include <dev/isci/scil/sci_memory_descriptor_list.h>
45 #include <dev/isci/scil/sci_memory_descriptor_list_decorator.h>
47 #include <dev/isci/scil/scif_controller.h>
48 #include <dev/isci/scil/scif_library.h>
49 #include <dev/isci/scil/scif_io_request.h>
50 #include <dev/isci/scil/scif_task_request.h>
51 #include <dev/isci/scil/scif_remote_device.h>
52 #include <dev/isci/scil/scif_domain.h>
53 #include <dev/isci/scil/scif_user_callback.h>
54 #include <dev/isci/scil/scic_sgpio.h>
56 #include <dev/led/led.h>
58 void isci_action(struct cam_sim *sim, union ccb *ccb);
59 void isci_poll(struct cam_sim *sim);
61 #define ccb_sim_ptr sim_priv.entries[0].ptr
64 * @brief This user callback will inform the user that the controller has
65 * had a serious unexpected error. The user should not the error,
66 * disable interrupts, and wait for current ongoing processing to
67 * complete. Subsequently, the user should reset the controller.
69 * @param[in] controller This parameter specifies the controller that had
74 void scif_cb_controller_error(SCI_CONTROLLER_HANDLE_T controller,
75 SCI_CONTROLLER_ERROR error)
78 isci_log_message(0, "ISCI", "scif_cb_controller_error: 0x%x\n",
83 * @brief This user callback will inform the user that the controller has
84 * finished the start process.
86 * @param[in] controller This parameter specifies the controller that was
88 * @param[in] completion_status This parameter specifies the results of
89 * the start operation. SCI_SUCCESS indicates successful
94 void scif_cb_controller_start_complete(SCI_CONTROLLER_HANDLE_T controller,
95 SCI_STATUS completion_status)
98 struct ISCI_CONTROLLER *isci_controller = (struct ISCI_CONTROLLER *)
99 sci_object_get_association(controller);
101 isci_controller->is_started = TRUE;
103 /* Set bits for all domains. We will clear them one-by-one once
104 * the domains complete discovery, or return error when calling
105 * scif_domain_discover. Once all bits are clear, we will register
106 * the controller with CAM.
108 isci_controller->initial_discovery_mask = (1 << SCI_MAX_DOMAINS) - 1;
110 for(index = 0; index < SCI_MAX_DOMAINS; index++) {
112 SCI_DOMAIN_HANDLE_T domain =
113 isci_controller->domain[index].sci_object;
115 status = scif_domain_discover(
117 scif_domain_get_suggested_discover_timeout(domain),
121 if (status != SCI_SUCCESS)
123 isci_controller_domain_discovery_complete(
124 isci_controller, &isci_controller->domain[index]);
130 * @brief This user callback will inform the user that the controller has
131 * finished the stop process. Note, after user calls
132 * scif_controller_stop(), before user receives this controller stop
133 * complete callback, user should not expect any callback from
134 * framework, such like scif_cb_domain_change_notification().
136 * @param[in] controller This parameter specifies the controller that was
138 * @param[in] completion_status This parameter specifies the results of
139 * the stop operation. SCI_SUCCESS indicates successful
144 void scif_cb_controller_stop_complete(SCI_CONTROLLER_HANDLE_T controller,
145 SCI_STATUS completion_status)
147 struct ISCI_CONTROLLER *isci_controller = (struct ISCI_CONTROLLER *)
148 sci_object_get_association(controller);
150 isci_controller->is_started = FALSE;
154 isci_single_map(void *arg, bus_dma_segment_t *seg, int nseg, int error)
156 SCI_PHYSICAL_ADDRESS *phys_addr = arg;
158 *phys_addr = seg[0].ds_addr;
162 * @brief This method will be invoked to allocate memory dynamically.
164 * @param[in] controller This parameter represents the controller
165 * object for which to allocate memory.
166 * @param[out] mde This parameter represents the memory descriptor to
167 * be filled in by the user that will reference the newly
172 void scif_cb_controller_allocate_memory(SCI_CONTROLLER_HANDLE_T controller,
173 SCI_PHYSICAL_MEMORY_DESCRIPTOR_T *mde)
175 struct ISCI_CONTROLLER *isci_controller = (struct ISCI_CONTROLLER *)
176 sci_object_get_association(controller);
179 * Note this routine is only used for buffers needed to translate
180 * SCSI UNMAP commands to ATA DSM commands for SATA disks.
182 * We first try to pull a buffer from the controller's pool, and only
183 * call contigmalloc if one isn't there.
185 if (!sci_pool_empty(isci_controller->unmap_buffer_pool)) {
186 sci_pool_get(isci_controller->unmap_buffer_pool,
187 mde->virtual_address);
189 mde->virtual_address = contigmalloc(PAGE_SIZE,
190 M_ISCI, M_NOWAIT, 0, BUS_SPACE_MAXADDR,
191 mde->constant_memory_alignment, 0);
193 if (mde->virtual_address != NULL)
194 bus_dmamap_load(isci_controller->buffer_dma_tag,
195 NULL, mde->virtual_address, PAGE_SIZE,
196 isci_single_map, &mde->physical_address,
201 * @brief This method will be invoked to allocate memory dynamically.
203 * @param[in] controller This parameter represents the controller
204 * object for which to allocate memory.
205 * @param[out] mde This parameter represents the memory descriptor to
206 * be filled in by the user that will reference the newly
211 void scif_cb_controller_free_memory(SCI_CONTROLLER_HANDLE_T controller,
212 SCI_PHYSICAL_MEMORY_DESCRIPTOR_T * mde)
214 struct ISCI_CONTROLLER *isci_controller = (struct ISCI_CONTROLLER *)
215 sci_object_get_association(controller);
218 * Put the buffer back into the controller's buffer pool, rather
219 * than invoking configfree. This helps reduce chance we won't
220 * have buffers available when system is under memory pressure.
222 sci_pool_put(isci_controller->unmap_buffer_pool,
223 mde->virtual_address);
226 void isci_controller_construct(struct ISCI_CONTROLLER *controller,
227 struct isci_softc *isci)
229 SCI_CONTROLLER_HANDLE_T scif_controller_handle;
231 scif_library_allocate_controller(isci->sci_library_handle,
232 &scif_controller_handle);
234 scif_controller_construct(isci->sci_library_handle,
235 scif_controller_handle, NULL);
237 controller->isci = isci;
238 controller->scif_controller_handle = scif_controller_handle;
240 /* This allows us to later use
241 * sci_object_get_association(scif_controller_handle)
242 * inside of a callback routine to get our struct ISCI_CONTROLLER object
244 sci_object_set_association(scif_controller_handle, (void *)controller);
246 controller->is_started = FALSE;
247 controller->is_frozen = FALSE;
248 controller->release_queued_ccbs = FALSE;
249 controller->sim = NULL;
250 controller->initial_discovery_mask = 0;
252 sci_fast_list_init(&controller->pending_device_reset_list);
254 mtx_init(&controller->lock, "isci", NULL, MTX_DEF);
256 uint32_t domain_index;
258 for(domain_index = 0; domain_index < SCI_MAX_DOMAINS; domain_index++) {
259 isci_domain_construct( &controller->domain[domain_index],
260 domain_index, controller);
263 controller->timer_memory = malloc(
264 sizeof(struct ISCI_TIMER) * SCI_MAX_TIMERS, M_ISCI,
267 sci_pool_initialize(controller->timer_pool);
269 struct ISCI_TIMER *timer = (struct ISCI_TIMER *)
270 controller->timer_memory;
272 for ( int i = 0; i < SCI_MAX_TIMERS; i++ ) {
273 sci_pool_put(controller->timer_pool, timer++);
276 sci_pool_initialize(controller->unmap_buffer_pool);
279 static void isci_led_fault_func(void *priv, int onoff)
281 struct ISCI_PHY *phy = priv;
283 /* map onoff to the fault LED */
284 phy->led_fault = onoff;
285 scic_sgpio_update_led_state(phy->handle, 1 << phy->index,
286 phy->led_fault, phy->led_locate, 0);
289 static void isci_led_locate_func(void *priv, int onoff)
291 struct ISCI_PHY *phy = priv;
293 /* map onoff to the locate LED */
294 phy->led_locate = onoff;
295 scic_sgpio_update_led_state(phy->handle, 1 << phy->index,
296 phy->led_fault, phy->led_locate, 0);
299 SCI_STATUS isci_controller_initialize(struct ISCI_CONTROLLER *controller)
301 SCIC_USER_PARAMETERS_T scic_user_parameters;
302 SCI_CONTROLLER_HANDLE_T scic_controller_handle;
304 unsigned long tunable;
305 uint32_t io_shortage;
306 uint32_t fail_on_timeout;
309 scic_controller_handle =
310 scif_controller_get_scic_handle(controller->scif_controller_handle);
312 if (controller->isci->oem_parameters_found == TRUE)
314 scic_oem_parameters_set(
315 scic_controller_handle,
316 &controller->oem_parameters,
317 (uint8_t)(controller->oem_parameters_version));
320 scic_user_parameters_get(scic_controller_handle, &scic_user_parameters);
322 if (TUNABLE_ULONG_FETCH("hw.isci.no_outbound_task_timeout", &tunable))
323 scic_user_parameters.sds1.no_outbound_task_timeout =
326 if (TUNABLE_ULONG_FETCH("hw.isci.ssp_max_occupancy_timeout", &tunable))
327 scic_user_parameters.sds1.ssp_max_occupancy_timeout =
330 if (TUNABLE_ULONG_FETCH("hw.isci.stp_max_occupancy_timeout", &tunable))
331 scic_user_parameters.sds1.stp_max_occupancy_timeout =
334 if (TUNABLE_ULONG_FETCH("hw.isci.ssp_inactivity_timeout", &tunable))
335 scic_user_parameters.sds1.ssp_inactivity_timeout =
338 if (TUNABLE_ULONG_FETCH("hw.isci.stp_inactivity_timeout", &tunable))
339 scic_user_parameters.sds1.stp_inactivity_timeout =
342 if (TUNABLE_ULONG_FETCH("hw.isci.max_speed_generation", &tunable))
343 for (i = 0; i < SCI_MAX_PHYS; i++)
344 scic_user_parameters.sds1.phys[i].max_speed_generation =
347 scic_user_parameters_set(scic_controller_handle, &scic_user_parameters);
349 /* Scheduler bug in SCU requires SCIL to reserve some task contexts as a
350 * a workaround - one per domain.
352 controller->queue_depth = SCI_MAX_IO_REQUESTS - SCI_MAX_DOMAINS;
354 if (TUNABLE_INT_FETCH("hw.isci.controller_queue_depth",
355 &controller->queue_depth)) {
356 controller->queue_depth = max(1, min(controller->queue_depth,
357 SCI_MAX_IO_REQUESTS - SCI_MAX_DOMAINS));
360 /* Reserve one request so that we can ensure we have one available TC
361 * to do internal device resets.
363 controller->sim_queue_depth = controller->queue_depth - 1;
365 /* Although we save one TC to do internal device resets, it is possible
366 * we could end up using several TCs for simultaneous device resets
367 * while at the same time having CAM fill our controller queue. To
368 * simulate this condition, and how our driver handles it, we can set
369 * this io_shortage parameter, which will tell CAM that we have a
370 * large queue depth than we really do.
373 TUNABLE_INT_FETCH("hw.isci.io_shortage", &io_shortage);
374 controller->sim_queue_depth += io_shortage;
377 TUNABLE_INT_FETCH("hw.isci.fail_on_task_timeout", &fail_on_timeout);
378 controller->fail_on_task_timeout = fail_on_timeout;
380 /* Attach to CAM using xpt_bus_register now, then immediately freeze
381 * the simq. It will get released later when initial domain discovery
384 controller->has_been_scanned = FALSE;
385 mtx_lock(&controller->lock);
386 isci_controller_attach_to_cam(controller);
387 xpt_freeze_simq(controller->sim, 1);
388 mtx_unlock(&controller->lock);
390 for (i = 0; i < SCI_MAX_PHYS; i++) {
391 controller->phys[i].handle = scic_controller_handle;
392 controller->phys[i].index = i;
395 controller->phys[i].led_fault = 0;
396 sprintf(led_name, "isci.bus%d.port%d.fault", controller->index, i);
397 controller->phys[i].cdev_fault = led_create(isci_led_fault_func,
398 &controller->phys[i], led_name);
401 controller->phys[i].led_locate = 0;
402 sprintf(led_name, "isci.bus%d.port%d.locate", controller->index, i);
403 controller->phys[i].cdev_locate = led_create(isci_led_locate_func,
404 &controller->phys[i], led_name);
407 return (scif_controller_initialize(controller->scif_controller_handle));
410 int isci_controller_allocate_memory(struct ISCI_CONTROLLER *controller)
413 device_t device = controller->isci->device;
414 uint32_t max_segment_size = isci_io_request_get_max_io_size();
416 struct ISCI_MEMORY *uncached_controller_memory =
417 &controller->uncached_controller_memory;
418 struct ISCI_MEMORY *cached_controller_memory =
419 &controller->cached_controller_memory;
420 struct ISCI_MEMORY *request_memory =
421 &controller->request_memory;
422 POINTER_UINT virtual_address;
423 bus_addr_t physical_address;
425 controller->mdl = sci_controller_get_memory_descriptor_list_handle(
426 controller->scif_controller_handle);
428 uncached_controller_memory->size = sci_mdl_decorator_get_memory_size(
429 controller->mdl, SCI_MDE_ATTRIBUTE_PHYSICALLY_CONTIGUOUS);
431 error = isci_allocate_dma_buffer(device, controller,
432 uncached_controller_memory);
437 sci_mdl_decorator_assign_memory( controller->mdl,
438 SCI_MDE_ATTRIBUTE_PHYSICALLY_CONTIGUOUS,
439 uncached_controller_memory->virtual_address,
440 uncached_controller_memory->physical_address);
442 cached_controller_memory->size = sci_mdl_decorator_get_memory_size(
444 SCI_MDE_ATTRIBUTE_CACHEABLE | SCI_MDE_ATTRIBUTE_PHYSICALLY_CONTIGUOUS
447 error = isci_allocate_dma_buffer(device, controller,
448 cached_controller_memory);
453 sci_mdl_decorator_assign_memory(controller->mdl,
454 SCI_MDE_ATTRIBUTE_CACHEABLE | SCI_MDE_ATTRIBUTE_PHYSICALLY_CONTIGUOUS,
455 cached_controller_memory->virtual_address,
456 cached_controller_memory->physical_address);
458 request_memory->size =
459 controller->queue_depth * isci_io_request_get_object_size();
461 error = isci_allocate_dma_buffer(device, controller, request_memory);
466 /* For STP PIO testing, we want to ensure we can force multiple SGLs
467 * since this has been a problem area in SCIL. This tunable parameter
468 * will allow us to force DMA segments to a smaller size, ensuring
469 * that even if a physically contiguous buffer is attached to this
470 * I/O, the DMA subsystem will pass us multiple segments in our DMA
473 TUNABLE_INT_FETCH("hw.isci.max_segment_size", &max_segment_size);
475 /* Create DMA tag for our I/O requests. Then we can create DMA maps based off
476 * of this tag and store them in each of our ISCI_IO_REQUEST objects. This
477 * will enable better performance than creating the DMA maps every time we get
480 status = bus_dma_tag_create(bus_get_dma_tag(device), 0x1,
481 ISCI_DMA_BOUNDARY, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
482 NULL, NULL, isci_io_request_get_max_io_size(),
483 SCI_MAX_SCATTER_GATHER_ELEMENTS, max_segment_size, 0,
484 busdma_lock_mutex, &controller->lock,
485 &controller->buffer_dma_tag);
487 sci_pool_initialize(controller->request_pool);
489 virtual_address = request_memory->virtual_address;
490 physical_address = request_memory->physical_address;
492 for (int i = 0; i < controller->queue_depth; i++) {
493 struct ISCI_REQUEST *request =
494 (struct ISCI_REQUEST *)virtual_address;
496 isci_request_construct(request,
497 controller->scif_controller_handle,
498 controller->buffer_dma_tag, physical_address);
500 sci_pool_put(controller->request_pool, request);
502 virtual_address += isci_request_get_object_size();
503 physical_address += isci_request_get_object_size();
506 uint32_t remote_device_size = sizeof(struct ISCI_REMOTE_DEVICE) +
507 scif_remote_device_get_object_size();
509 controller->remote_device_memory = (uint8_t *) malloc(
510 remote_device_size * SCI_MAX_REMOTE_DEVICES, M_ISCI,
513 sci_pool_initialize(controller->remote_device_pool);
515 uint8_t *remote_device_memory_ptr = controller->remote_device_memory;
517 for (int i = 0; i < SCI_MAX_REMOTE_DEVICES; i++) {
518 struct ISCI_REMOTE_DEVICE *remote_device =
519 (struct ISCI_REMOTE_DEVICE *)remote_device_memory_ptr;
521 controller->remote_device[i] = NULL;
522 remote_device->index = i;
523 remote_device->is_resetting = FALSE;
524 remote_device->frozen_lun_mask = 0;
525 sci_fast_list_element_init(remote_device,
526 &remote_device->pending_device_reset_element);
527 TAILQ_INIT(&remote_device->queued_ccbs);
528 remote_device->release_queued_ccb = FALSE;
529 remote_device->queued_ccb_in_progress = NULL;
532 * For the first SCI_MAX_DOMAINS device objects, do not put
533 * them in the pool, rather assign them to each domain. This
534 * ensures that any device attached directly to port "i" will
535 * always get CAM target id "i".
537 if (i < SCI_MAX_DOMAINS)
538 controller->domain[i].da_remote_device = remote_device;
540 sci_pool_put(controller->remote_device_pool,
542 remote_device_memory_ptr += remote_device_size;
548 void isci_controller_start(void *controller_handle)
550 struct ISCI_CONTROLLER *controller =
551 (struct ISCI_CONTROLLER *)controller_handle;
552 SCI_CONTROLLER_HANDLE_T scif_controller_handle =
553 controller->scif_controller_handle;
555 scif_controller_start(scif_controller_handle,
556 scif_controller_get_suggested_start_timeout(scif_controller_handle));
558 scic_controller_enable_interrupts(
559 scif_controller_get_scic_handle(controller->scif_controller_handle));
562 void isci_controller_domain_discovery_complete(
563 struct ISCI_CONTROLLER *isci_controller, struct ISCI_DOMAIN *isci_domain)
565 if (!isci_controller->has_been_scanned)
567 /* Controller has not been scanned yet. We'll clear
568 * the discovery bit for this domain, then check if all bits
569 * are now clear. That would indicate that all domains are
570 * done with discovery and we can then proceed with initial
574 isci_controller->initial_discovery_mask &=
575 ~(1 << isci_domain->index);
577 if (isci_controller->initial_discovery_mask == 0) {
578 struct isci_softc *driver = isci_controller->isci;
579 uint8_t next_index = isci_controller->index + 1;
581 isci_controller->has_been_scanned = TRUE;
583 /* Unfreeze simq to allow initial scan to proceed. */
584 xpt_release_simq(isci_controller->sim, TRUE);
586 if (next_index < driver->controller_count) {
587 /* There are more controllers that need to
588 * start. So start the next one.
590 isci_controller_start(
591 &driver->controllers[next_index]);
595 /* All controllers have been started and completed discovery.
596 * Disestablish the config hook while will signal to the
597 * kernel during boot that it is safe to try to find and
598 * mount the root partition.
600 config_intrhook_disestablish(
601 &driver->config_hook);
607 int isci_controller_attach_to_cam(struct ISCI_CONTROLLER *controller)
609 struct isci_softc *isci = controller->isci;
610 device_t parent = device_get_parent(isci->device);
611 int unit = device_get_unit(isci->device);
612 struct cam_devq *isci_devq = cam_simq_alloc(controller->sim_queue_depth);
614 if(isci_devq == NULL) {
615 isci_log_message(0, "ISCI", "isci_devq is NULL \n");
619 controller->sim = cam_sim_alloc(isci_action, isci_poll, "isci",
620 controller, unit, &controller->lock, controller->sim_queue_depth,
621 controller->sim_queue_depth, isci_devq);
623 if(controller->sim == NULL) {
624 isci_log_message(0, "ISCI", "cam_sim_alloc... fails\n");
625 cam_simq_free(isci_devq);
629 if(xpt_bus_register(controller->sim, parent, controller->index)
631 isci_log_message(0, "ISCI", "xpt_bus_register...fails \n");
632 cam_sim_free(controller->sim, TRUE);
633 mtx_unlock(&controller->lock);
637 if(xpt_create_path(&controller->path, NULL,
638 cam_sim_path(controller->sim), CAM_TARGET_WILDCARD,
639 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
640 isci_log_message(0, "ISCI", "xpt_create_path....fails\n");
641 xpt_bus_deregister(cam_sim_path(controller->sim));
642 cam_sim_free(controller->sim, TRUE);
643 mtx_unlock(&controller->lock);
650 void isci_poll(struct cam_sim *sim)
652 struct ISCI_CONTROLLER *controller =
653 (struct ISCI_CONTROLLER *)cam_sim_softc(sim);
655 isci_interrupt_poll_handler(controller);
658 void isci_action(struct cam_sim *sim, union ccb *ccb)
660 struct ISCI_CONTROLLER *controller =
661 (struct ISCI_CONTROLLER *)cam_sim_softc(sim);
663 switch ( ccb->ccb_h.func_code ) {
666 struct ccb_pathinq *cpi = &ccb->cpi;
667 int bus = cam_sim_bus(sim);
668 ccb->ccb_h.ccb_sim_ptr = sim;
669 cpi->version_num = 1;
670 cpi->hba_inquiry = PI_TAG_ABLE;
671 cpi->target_sprt = 0;
672 cpi->hba_misc = PIM_NOBUSRESET | PIM_SEQSCAN |
674 cpi->hba_eng_cnt = 0;
675 cpi->max_target = SCI_MAX_REMOTE_DEVICES - 1;
676 cpi->max_lun = ISCI_MAX_LUN;
677 cpi->maxio = isci_io_request_get_max_io_size();
678 cpi->unit_number = cam_sim_unit(sim);
680 cpi->initiator_id = SCI_MAX_REMOTE_DEVICES;
681 cpi->base_transfer_speed = 300000;
682 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
683 strlcpy(cpi->hba_vid, "Intel Corp.", HBA_IDLEN);
684 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
685 cpi->transport = XPORT_SAS;
686 cpi->transport_version = 0;
687 cpi->protocol = PROTO_SCSI;
688 cpi->protocol_version = SCSI_REV_SPC2;
689 cpi->ccb_h.status = CAM_REQ_CMP;
693 case XPT_GET_TRAN_SETTINGS:
695 struct ccb_trans_settings *general_settings = &ccb->cts;
696 struct ccb_trans_settings_sas *sas_settings =
697 &general_settings->xport_specific.sas;
698 struct ccb_trans_settings_scsi *scsi_settings =
699 &general_settings->proto_specific.scsi;
700 struct ISCI_REMOTE_DEVICE *remote_device;
702 remote_device = controller->remote_device[ccb->ccb_h.target_id];
704 if (remote_device == NULL) {
705 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
706 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
707 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
712 general_settings->protocol = PROTO_SCSI;
713 general_settings->transport = XPORT_SAS;
714 general_settings->protocol_version = SCSI_REV_SPC2;
715 general_settings->transport_version = 0;
716 scsi_settings->valid = CTS_SCSI_VALID_TQ;
717 scsi_settings->flags = CTS_SCSI_FLAGS_TAG_ENB;
718 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
719 ccb->ccb_h.status |= CAM_REQ_CMP;
721 sas_settings->bitrate =
722 isci_remote_device_get_bitrate(remote_device);
724 if (sas_settings->bitrate != 0)
725 sas_settings->valid = CTS_SAS_VALID_SPEED;
731 if (ccb->ccb_h.flags & CAM_CDB_PHYS) {
732 ccb->ccb_h.status = CAM_REQ_INVALID;
736 isci_io_request_execute_scsi_io(ccb, controller);
739 isci_io_request_execute_smp_io(ccb, controller);
741 case XPT_SET_TRAN_SETTINGS:
742 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
743 ccb->ccb_h.status |= CAM_REQ_CMP;
746 case XPT_CALC_GEOMETRY:
747 cam_calc_geometry(&ccb->ccg, /*extended*/1);
752 struct ISCI_REMOTE_DEVICE *remote_device =
753 controller->remote_device[ccb->ccb_h.target_id];
755 if (remote_device != NULL)
756 isci_remote_device_reset(remote_device, ccb);
758 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
759 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
760 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
766 ccb->ccb_h.status = CAM_REQ_CMP;
770 isci_log_message(0, "ISCI", "Unhandled func_code 0x%x\n",
771 ccb->ccb_h.func_code);
772 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
773 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
774 ccb->ccb_h.status |= CAM_REQ_INVALID;
781 * Unfortunately, SCIL doesn't cleanly handle retry conditions.
782 * CAM_REQUEUE_REQ works only when no one is using the pass(4) interface. So
783 * when SCIL denotes an I/O needs to be retried (typically because of mixing
784 * tagged/non-tagged ATA commands, or running out of NCQ slots), we queue
785 * these I/O internally. Once SCIL completes an I/O to this device, or we get
786 * a ready notification, we will retry the first I/O on the queue.
787 * Unfortunately, SCIL also doesn't cleanly handle starting the new I/O within
788 * the context of the completion handler, so we need to retry these I/O after
789 * the completion handler is done executing.
792 isci_controller_release_queued_ccbs(struct ISCI_CONTROLLER *controller)
794 struct ISCI_REMOTE_DEVICE *dev;
795 struct ccb_hdr *ccb_h;
799 KASSERT(mtx_owned(&controller->lock), ("controller lock not owned"));
801 controller->release_queued_ccbs = FALSE;
803 dev_idx < SCI_MAX_REMOTE_DEVICES;
806 dev = controller->remote_device[dev_idx];
808 dev->release_queued_ccb == TRUE &&
809 dev->queued_ccb_in_progress == NULL) {
810 dev->release_queued_ccb = FALSE;
811 ccb_h = TAILQ_FIRST(&dev->queued_ccbs);
816 ptr = scsiio_cdb_ptr(&((union ccb *)ccb_h)->csio);
817 isci_log_message(1, "ISCI", "release %p %x\n", ccb_h, *ptr);
819 dev->queued_ccb_in_progress = (union ccb *)ccb_h;
820 isci_io_request_execute_scsi_io(
821 (union ccb *)ccb_h, controller);