4 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
34 #include <dev/isci/isci.h>
37 #include <sys/malloc.h>
39 #include <cam/cam_periph.h>
40 #include <cam/cam_xpt_periph.h>
42 #include <dev/isci/scil/sci_memory_descriptor_list.h>
43 #include <dev/isci/scil/sci_memory_descriptor_list_decorator.h>
45 #include <dev/isci/scil/scif_controller.h>
46 #include <dev/isci/scil/scif_library.h>
47 #include <dev/isci/scil/scif_io_request.h>
48 #include <dev/isci/scil/scif_task_request.h>
49 #include <dev/isci/scil/scif_remote_device.h>
50 #include <dev/isci/scil/scif_domain.h>
51 #include <dev/isci/scil/scif_user_callback.h>
52 #include <dev/isci/scil/scic_sgpio.h>
54 #include <dev/led/led.h>
56 void isci_action(struct cam_sim *sim, union ccb *ccb);
57 void isci_poll(struct cam_sim *sim);
59 #define ccb_sim_ptr sim_priv.entries[0].ptr
62 * @brief This user callback will inform the user that the controller has
63 * had a serious unexpected error. The user should not the error,
64 * disable interrupts, and wait for current ongoing processing to
65 * complete. Subsequently, the user should reset the controller.
67 * @param[in] controller This parameter specifies the controller that had
72 void scif_cb_controller_error(SCI_CONTROLLER_HANDLE_T controller,
73 SCI_CONTROLLER_ERROR error)
76 isci_log_message(0, "ISCI", "scif_cb_controller_error: 0x%x\n",
81 * @brief This user callback will inform the user that the controller has
82 * finished the start process.
84 * @param[in] controller This parameter specifies the controller that was
86 * @param[in] completion_status This parameter specifies the results of
87 * the start operation. SCI_SUCCESS indicates successful
92 void scif_cb_controller_start_complete(SCI_CONTROLLER_HANDLE_T controller,
93 SCI_STATUS completion_status)
96 struct ISCI_CONTROLLER *isci_controller = (struct ISCI_CONTROLLER *)
97 sci_object_get_association(controller);
99 isci_controller->is_started = TRUE;
101 /* Set bits for all domains. We will clear them one-by-one once
102 * the domains complete discovery, or return error when calling
103 * scif_domain_discover. Once all bits are clear, we will register
104 * the controller with CAM.
106 isci_controller->initial_discovery_mask = (1 << SCI_MAX_DOMAINS) - 1;
108 for(index = 0; index < SCI_MAX_DOMAINS; index++) {
110 SCI_DOMAIN_HANDLE_T domain =
111 isci_controller->domain[index].sci_object;
113 status = scif_domain_discover(
115 scif_domain_get_suggested_discover_timeout(domain),
119 if (status != SCI_SUCCESS)
121 isci_controller_domain_discovery_complete(
122 isci_controller, &isci_controller->domain[index]);
128 * @brief This user callback will inform the user that the controller has
129 * finished the stop process. Note, after user calls
130 * scif_controller_stop(), before user receives this controller stop
131 * complete callback, user should not expect any callback from
132 * framework, such like scif_cb_domain_change_notification().
134 * @param[in] controller This parameter specifies the controller that was
136 * @param[in] completion_status This parameter specifies the results of
137 * the stop operation. SCI_SUCCESS indicates successful
142 void scif_cb_controller_stop_complete(SCI_CONTROLLER_HANDLE_T controller,
143 SCI_STATUS completion_status)
145 struct ISCI_CONTROLLER *isci_controller = (struct ISCI_CONTROLLER *)
146 sci_object_get_association(controller);
148 isci_controller->is_started = FALSE;
152 isci_single_map(void *arg, bus_dma_segment_t *seg, int nseg, int error)
154 SCI_PHYSICAL_ADDRESS *phys_addr = arg;
156 *phys_addr = seg[0].ds_addr;
160 * @brief This method will be invoked to allocate memory dynamically.
162 * @param[in] controller This parameter represents the controller
163 * object for which to allocate memory.
164 * @param[out] mde This parameter represents the memory descriptor to
165 * be filled in by the user that will reference the newly
170 void scif_cb_controller_allocate_memory(SCI_CONTROLLER_HANDLE_T controller,
171 SCI_PHYSICAL_MEMORY_DESCRIPTOR_T *mde)
173 struct ISCI_CONTROLLER *isci_controller = (struct ISCI_CONTROLLER *)
174 sci_object_get_association(controller);
177 * Note this routine is only used for buffers needed to translate
178 * SCSI UNMAP commands to ATA DSM commands for SATA disks.
180 * We first try to pull a buffer from the controller's pool, and only
181 * call contigmalloc if one isn't there.
183 if (!sci_pool_empty(isci_controller->unmap_buffer_pool)) {
184 sci_pool_get(isci_controller->unmap_buffer_pool,
185 mde->virtual_address);
187 mde->virtual_address = contigmalloc(PAGE_SIZE,
188 M_ISCI, M_NOWAIT, 0, BUS_SPACE_MAXADDR,
189 mde->constant_memory_alignment, 0);
191 if (mde->virtual_address != NULL)
192 bus_dmamap_load(isci_controller->buffer_dma_tag,
193 NULL, mde->virtual_address, PAGE_SIZE,
194 isci_single_map, &mde->physical_address,
199 * @brief This method will be invoked to allocate memory dynamically.
201 * @param[in] controller This parameter represents the controller
202 * object for which to allocate memory.
203 * @param[out] mde This parameter represents the memory descriptor to
204 * be filled in by the user that will reference the newly
209 void scif_cb_controller_free_memory(SCI_CONTROLLER_HANDLE_T controller,
210 SCI_PHYSICAL_MEMORY_DESCRIPTOR_T * mde)
212 struct ISCI_CONTROLLER *isci_controller = (struct ISCI_CONTROLLER *)
213 sci_object_get_association(controller);
216 * Put the buffer back into the controller's buffer pool, rather
217 * than invoking configfree. This helps reduce chance we won't
218 * have buffers available when system is under memory pressure.
220 sci_pool_put(isci_controller->unmap_buffer_pool,
221 mde->virtual_address);
224 void isci_controller_construct(struct ISCI_CONTROLLER *controller,
225 struct isci_softc *isci)
227 SCI_CONTROLLER_HANDLE_T scif_controller_handle;
229 scif_library_allocate_controller(isci->sci_library_handle,
230 &scif_controller_handle);
232 scif_controller_construct(isci->sci_library_handle,
233 scif_controller_handle, NULL);
235 controller->isci = isci;
236 controller->scif_controller_handle = scif_controller_handle;
238 /* This allows us to later use
239 * sci_object_get_association(scif_controller_handle)
240 * inside of a callback routine to get our struct ISCI_CONTROLLER object
242 sci_object_set_association(scif_controller_handle, (void *)controller);
244 controller->is_started = FALSE;
245 controller->is_frozen = FALSE;
246 controller->release_queued_ccbs = FALSE;
247 controller->sim = NULL;
248 controller->initial_discovery_mask = 0;
250 sci_fast_list_init(&controller->pending_device_reset_list);
252 mtx_init(&controller->lock, "isci", NULL, MTX_DEF);
254 uint32_t domain_index;
256 for(domain_index = 0; domain_index < SCI_MAX_DOMAINS; domain_index++) {
257 isci_domain_construct( &controller->domain[domain_index],
258 domain_index, controller);
261 controller->timer_memory = malloc(
262 sizeof(struct ISCI_TIMER) * SCI_MAX_TIMERS, M_ISCI,
265 sci_pool_initialize(controller->timer_pool);
267 struct ISCI_TIMER *timer = (struct ISCI_TIMER *)
268 controller->timer_memory;
270 for ( int i = 0; i < SCI_MAX_TIMERS; i++ ) {
271 sci_pool_put(controller->timer_pool, timer++);
274 sci_pool_initialize(controller->unmap_buffer_pool);
277 static void isci_led_fault_func(void *priv, int onoff)
279 struct ISCI_PHY *phy = priv;
281 /* map onoff to the fault LED */
282 phy->led_fault = onoff;
283 scic_sgpio_update_led_state(phy->handle, 1 << phy->index,
284 phy->led_fault, phy->led_locate, 0);
287 static void isci_led_locate_func(void *priv, int onoff)
289 struct ISCI_PHY *phy = priv;
291 /* map onoff to the locate LED */
292 phy->led_locate = onoff;
293 scic_sgpio_update_led_state(phy->handle, 1 << phy->index,
294 phy->led_fault, phy->led_locate, 0);
297 SCI_STATUS isci_controller_initialize(struct ISCI_CONTROLLER *controller)
299 SCIC_USER_PARAMETERS_T scic_user_parameters;
300 SCI_CONTROLLER_HANDLE_T scic_controller_handle;
302 unsigned long tunable;
303 uint32_t io_shortage;
304 uint32_t fail_on_timeout;
307 scic_controller_handle =
308 scif_controller_get_scic_handle(controller->scif_controller_handle);
310 if (controller->isci->oem_parameters_found == TRUE)
312 scic_oem_parameters_set(
313 scic_controller_handle,
314 &controller->oem_parameters,
315 (uint8_t)(controller->oem_parameters_version));
318 scic_user_parameters_get(scic_controller_handle, &scic_user_parameters);
320 if (TUNABLE_ULONG_FETCH("hw.isci.no_outbound_task_timeout", &tunable))
321 scic_user_parameters.sds1.no_outbound_task_timeout =
324 if (TUNABLE_ULONG_FETCH("hw.isci.ssp_max_occupancy_timeout", &tunable))
325 scic_user_parameters.sds1.ssp_max_occupancy_timeout =
328 if (TUNABLE_ULONG_FETCH("hw.isci.stp_max_occupancy_timeout", &tunable))
329 scic_user_parameters.sds1.stp_max_occupancy_timeout =
332 if (TUNABLE_ULONG_FETCH("hw.isci.ssp_inactivity_timeout", &tunable))
333 scic_user_parameters.sds1.ssp_inactivity_timeout =
336 if (TUNABLE_ULONG_FETCH("hw.isci.stp_inactivity_timeout", &tunable))
337 scic_user_parameters.sds1.stp_inactivity_timeout =
340 if (TUNABLE_ULONG_FETCH("hw.isci.max_speed_generation", &tunable))
341 for (i = 0; i < SCI_MAX_PHYS; i++)
342 scic_user_parameters.sds1.phys[i].max_speed_generation =
345 scic_user_parameters_set(scic_controller_handle, &scic_user_parameters);
347 /* Scheduler bug in SCU requires SCIL to reserve some task contexts as a
348 * a workaround - one per domain.
350 controller->queue_depth = SCI_MAX_IO_REQUESTS - SCI_MAX_DOMAINS;
352 if (TUNABLE_INT_FETCH("hw.isci.controller_queue_depth",
353 &controller->queue_depth)) {
354 controller->queue_depth = max(1, min(controller->queue_depth,
355 SCI_MAX_IO_REQUESTS - SCI_MAX_DOMAINS));
358 /* Reserve one request so that we can ensure we have one available TC
359 * to do internal device resets.
361 controller->sim_queue_depth = controller->queue_depth - 1;
363 /* Although we save one TC to do internal device resets, it is possible
364 * we could end up using several TCs for simultaneous device resets
365 * while at the same time having CAM fill our controller queue. To
366 * simulate this condition, and how our driver handles it, we can set
367 * this io_shortage parameter, which will tell CAM that we have a
368 * large queue depth than we really do.
371 TUNABLE_INT_FETCH("hw.isci.io_shortage", &io_shortage);
372 controller->sim_queue_depth += io_shortage;
375 TUNABLE_INT_FETCH("hw.isci.fail_on_task_timeout", &fail_on_timeout);
376 /* Attach to CAM using xpt_bus_register now, then immediately freeze
377 * the simq. It will get released later when initial domain discovery
380 controller->has_been_scanned = FALSE;
381 mtx_lock(&controller->lock);
382 isci_controller_attach_to_cam(controller);
383 xpt_freeze_simq(controller->sim, 1);
384 mtx_unlock(&controller->lock);
386 for (i = 0; i < SCI_MAX_PHYS; i++) {
387 controller->phys[i].handle = scic_controller_handle;
388 controller->phys[i].index = i;
391 controller->phys[i].led_fault = 0;
392 sprintf(led_name, "isci.bus%d.port%d.fault", controller->index, i);
393 controller->phys[i].cdev_fault = led_create(isci_led_fault_func,
394 &controller->phys[i], led_name);
397 controller->phys[i].led_locate = 0;
398 sprintf(led_name, "isci.bus%d.port%d.locate", controller->index, i);
399 controller->phys[i].cdev_locate = led_create(isci_led_locate_func,
400 &controller->phys[i], led_name);
403 return (scif_controller_initialize(controller->scif_controller_handle));
406 int isci_controller_allocate_memory(struct ISCI_CONTROLLER *controller)
409 device_t device = controller->isci->device;
410 uint32_t max_segment_size = isci_io_request_get_max_io_size();
412 struct ISCI_MEMORY *uncached_controller_memory =
413 &controller->uncached_controller_memory;
414 struct ISCI_MEMORY *cached_controller_memory =
415 &controller->cached_controller_memory;
416 struct ISCI_MEMORY *request_memory =
417 &controller->request_memory;
418 POINTER_UINT virtual_address;
419 bus_addr_t physical_address;
421 controller->mdl = sci_controller_get_memory_descriptor_list_handle(
422 controller->scif_controller_handle);
424 uncached_controller_memory->size = sci_mdl_decorator_get_memory_size(
425 controller->mdl, SCI_MDE_ATTRIBUTE_PHYSICALLY_CONTIGUOUS);
427 error = isci_allocate_dma_buffer(device, uncached_controller_memory);
432 sci_mdl_decorator_assign_memory( controller->mdl,
433 SCI_MDE_ATTRIBUTE_PHYSICALLY_CONTIGUOUS,
434 uncached_controller_memory->virtual_address,
435 uncached_controller_memory->physical_address);
437 cached_controller_memory->size = sci_mdl_decorator_get_memory_size(
439 SCI_MDE_ATTRIBUTE_CACHEABLE | SCI_MDE_ATTRIBUTE_PHYSICALLY_CONTIGUOUS
442 error = isci_allocate_dma_buffer(device, cached_controller_memory);
447 sci_mdl_decorator_assign_memory(controller->mdl,
448 SCI_MDE_ATTRIBUTE_CACHEABLE | SCI_MDE_ATTRIBUTE_PHYSICALLY_CONTIGUOUS,
449 cached_controller_memory->virtual_address,
450 cached_controller_memory->physical_address);
452 request_memory->size =
453 controller->queue_depth * isci_io_request_get_object_size();
455 error = isci_allocate_dma_buffer(device, request_memory);
460 /* For STP PIO testing, we want to ensure we can force multiple SGLs
461 * since this has been a problem area in SCIL. This tunable parameter
462 * will allow us to force DMA segments to a smaller size, ensuring
463 * that even if a physically contiguous buffer is attached to this
464 * I/O, the DMA subsystem will pass us multiple segments in our DMA
467 TUNABLE_INT_FETCH("hw.isci.max_segment_size", &max_segment_size);
469 /* Create DMA tag for our I/O requests. Then we can create DMA maps based off
470 * of this tag and store them in each of our ISCI_IO_REQUEST objects. This
471 * will enable better performance than creating the DMA maps everytime we get
474 status = bus_dma_tag_create(bus_get_dma_tag(device), 0x1, 0x0,
475 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
476 isci_io_request_get_max_io_size(),
477 SCI_MAX_SCATTER_GATHER_ELEMENTS, max_segment_size, 0, NULL, NULL,
478 &controller->buffer_dma_tag);
480 sci_pool_initialize(controller->request_pool);
482 virtual_address = request_memory->virtual_address;
483 physical_address = request_memory->physical_address;
485 for (int i = 0; i < controller->queue_depth; i++) {
486 struct ISCI_REQUEST *request =
487 (struct ISCI_REQUEST *)virtual_address;
489 isci_request_construct(request,
490 controller->scif_controller_handle,
491 controller->buffer_dma_tag, physical_address);
493 sci_pool_put(controller->request_pool, request);
495 virtual_address += isci_request_get_object_size();
496 physical_address += isci_request_get_object_size();
499 uint32_t remote_device_size = sizeof(struct ISCI_REMOTE_DEVICE) +
500 scif_remote_device_get_object_size();
502 controller->remote_device_memory = (uint8_t *) malloc(
503 remote_device_size * SCI_MAX_REMOTE_DEVICES, M_ISCI,
506 sci_pool_initialize(controller->remote_device_pool);
508 uint8_t *remote_device_memory_ptr = controller->remote_device_memory;
510 for (int i = 0; i < SCI_MAX_REMOTE_DEVICES; i++) {
511 struct ISCI_REMOTE_DEVICE *remote_device =
512 (struct ISCI_REMOTE_DEVICE *)remote_device_memory_ptr;
514 controller->remote_device[i] = NULL;
515 remote_device->index = i;
516 remote_device->is_resetting = FALSE;
517 remote_device->frozen_lun_mask = 0;
518 sci_fast_list_element_init(remote_device,
519 &remote_device->pending_device_reset_element);
520 TAILQ_INIT(&remote_device->queued_ccbs);
521 remote_device->release_queued_ccb = FALSE;
522 remote_device->queued_ccb_in_progress = NULL;
525 * For the first SCI_MAX_DOMAINS device objects, do not put
526 * them in the pool, rather assign them to each domain. This
527 * ensures that any device attached directly to port "i" will
528 * always get CAM target id "i".
530 if (i < SCI_MAX_DOMAINS)
531 controller->domain[i].da_remote_device = remote_device;
533 sci_pool_put(controller->remote_device_pool,
535 remote_device_memory_ptr += remote_device_size;
541 void isci_controller_start(void *controller_handle)
543 struct ISCI_CONTROLLER *controller =
544 (struct ISCI_CONTROLLER *)controller_handle;
545 SCI_CONTROLLER_HANDLE_T scif_controller_handle =
546 controller->scif_controller_handle;
548 scif_controller_start(scif_controller_handle,
549 scif_controller_get_suggested_start_timeout(scif_controller_handle));
551 scic_controller_enable_interrupts(
552 scif_controller_get_scic_handle(controller->scif_controller_handle));
555 void isci_controller_domain_discovery_complete(
556 struct ISCI_CONTROLLER *isci_controller, struct ISCI_DOMAIN *isci_domain)
558 if (!isci_controller->has_been_scanned)
560 /* Controller has not been scanned yet. We'll clear
561 * the discovery bit for this domain, then check if all bits
562 * are now clear. That would indicate that all domains are
563 * done with discovery and we can then proceed with initial
567 isci_controller->initial_discovery_mask &=
568 ~(1 << isci_domain->index);
570 if (isci_controller->initial_discovery_mask == 0) {
571 struct isci_softc *driver = isci_controller->isci;
572 uint8_t next_index = isci_controller->index + 1;
574 isci_controller->has_been_scanned = TRUE;
576 /* Unfreeze simq to allow initial scan to proceed. */
577 xpt_release_simq(isci_controller->sim, TRUE);
579 #if __FreeBSD_version < 800000
580 /* When driver is loaded after boot, we need to
581 * explicitly rescan here for versions <8.0, because
582 * CAM only automatically scans new buses at boot
585 union ccb *ccb = xpt_alloc_ccb_nowait();
587 xpt_create_path(&ccb->ccb_h.path, NULL,
588 cam_sim_path(isci_controller->sim),
589 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
594 if (next_index < driver->controller_count) {
595 /* There are more controllers that need to
596 * start. So start the next one.
598 isci_controller_start(
599 &driver->controllers[next_index]);
603 /* All controllers have been started and completed discovery.
604 * Disestablish the config hook while will signal to the
605 * kernel during boot that it is safe to try to find and
606 * mount the root partition.
608 config_intrhook_disestablish(
609 &driver->config_hook);
615 int isci_controller_attach_to_cam(struct ISCI_CONTROLLER *controller)
617 struct isci_softc *isci = controller->isci;
618 device_t parent = device_get_parent(isci->device);
619 int unit = device_get_unit(isci->device);
620 struct cam_devq *isci_devq = cam_simq_alloc(controller->sim_queue_depth);
622 if(isci_devq == NULL) {
623 isci_log_message(0, "ISCI", "isci_devq is NULL \n");
627 controller->sim = cam_sim_alloc(isci_action, isci_poll, "isci",
628 controller, unit, &controller->lock, controller->sim_queue_depth,
629 controller->sim_queue_depth, isci_devq);
631 if(controller->sim == NULL) {
632 isci_log_message(0, "ISCI", "cam_sim_alloc... fails\n");
633 cam_simq_free(isci_devq);
637 if(xpt_bus_register(controller->sim, parent, controller->index)
639 isci_log_message(0, "ISCI", "xpt_bus_register...fails \n");
640 cam_sim_free(controller->sim, TRUE);
641 mtx_unlock(&controller->lock);
645 if(xpt_create_path(&controller->path, NULL,
646 cam_sim_path(controller->sim), CAM_TARGET_WILDCARD,
647 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
648 isci_log_message(0, "ISCI", "xpt_create_path....fails\n");
649 xpt_bus_deregister(cam_sim_path(controller->sim));
650 cam_sim_free(controller->sim, TRUE);
651 mtx_unlock(&controller->lock);
658 void isci_poll(struct cam_sim *sim)
660 struct ISCI_CONTROLLER *controller =
661 (struct ISCI_CONTROLLER *)cam_sim_softc(sim);
663 isci_interrupt_poll_handler(controller);
666 void isci_action(struct cam_sim *sim, union ccb *ccb)
668 struct ISCI_CONTROLLER *controller =
669 (struct ISCI_CONTROLLER *)cam_sim_softc(sim);
671 switch ( ccb->ccb_h.func_code ) {
674 struct ccb_pathinq *cpi = &ccb->cpi;
675 int bus = cam_sim_bus(sim);
676 ccb->ccb_h.ccb_sim_ptr = sim;
677 cpi->version_num = 1;
678 cpi->hba_inquiry = PI_TAG_ABLE;
679 cpi->target_sprt = 0;
680 cpi->hba_misc = PIM_NOBUSRESET | PIM_SEQSCAN |
682 cpi->hba_eng_cnt = 0;
683 cpi->max_target = SCI_MAX_REMOTE_DEVICES - 1;
684 cpi->max_lun = ISCI_MAX_LUN;
685 #if __FreeBSD_version >= 800102
686 cpi->maxio = isci_io_request_get_max_io_size();
688 cpi->unit_number = cam_sim_unit(sim);
690 cpi->initiator_id = SCI_MAX_REMOTE_DEVICES;
691 cpi->base_transfer_speed = 300000;
692 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
693 strncpy(cpi->hba_vid, "Intel Corp.", HBA_IDLEN);
694 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
695 cpi->transport = XPORT_SAS;
696 cpi->transport_version = 0;
697 cpi->protocol = PROTO_SCSI;
698 cpi->protocol_version = SCSI_REV_SPC2;
699 cpi->ccb_h.status = CAM_REQ_CMP;
703 case XPT_GET_TRAN_SETTINGS:
705 struct ccb_trans_settings *general_settings = &ccb->cts;
706 struct ccb_trans_settings_sas *sas_settings =
707 &general_settings->xport_specific.sas;
708 struct ccb_trans_settings_scsi *scsi_settings =
709 &general_settings->proto_specific.scsi;
710 struct ISCI_REMOTE_DEVICE *remote_device;
712 remote_device = controller->remote_device[ccb->ccb_h.target_id];
714 if (remote_device == NULL) {
715 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
716 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
717 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
722 general_settings->protocol = PROTO_SCSI;
723 general_settings->transport = XPORT_SAS;
724 general_settings->protocol_version = SCSI_REV_SPC2;
725 general_settings->transport_version = 0;
726 scsi_settings->valid = CTS_SCSI_VALID_TQ;
727 scsi_settings->flags = CTS_SCSI_FLAGS_TAG_ENB;
728 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
729 ccb->ccb_h.status |= CAM_REQ_CMP;
731 sas_settings->bitrate =
732 isci_remote_device_get_bitrate(remote_device);
734 if (sas_settings->bitrate != 0)
735 sas_settings->valid = CTS_SAS_VALID_SPEED;
741 isci_io_request_execute_scsi_io(ccb, controller);
743 #if __FreeBSD_version >= 900026
745 isci_io_request_execute_smp_io(ccb, controller);
748 case XPT_SET_TRAN_SETTINGS:
749 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
750 ccb->ccb_h.status |= CAM_REQ_CMP;
753 case XPT_CALC_GEOMETRY:
754 cam_calc_geometry(&ccb->ccg, /*extended*/1);
759 struct ISCI_REMOTE_DEVICE *remote_device =
760 controller->remote_device[ccb->ccb_h.target_id];
762 if (remote_device != NULL)
763 isci_remote_device_reset(remote_device, ccb);
765 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
766 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
767 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
773 ccb->ccb_h.status = CAM_REQ_CMP;
777 isci_log_message(0, "ISCI", "Unhandled func_code 0x%x\n",
778 ccb->ccb_h.func_code);
779 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
780 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
781 ccb->ccb_h.status |= CAM_REQ_INVALID;
788 * Unfortunately, SCIL doesn't cleanly handle retry conditions.
789 * CAM_REQUEUE_REQ works only when no one is using the pass(4) interface. So
790 * when SCIL denotes an I/O needs to be retried (typically because of mixing
791 * tagged/non-tagged ATA commands, or running out of NCQ slots), we queue
792 * these I/O internally. Once SCIL completes an I/O to this device, or we get
793 * a ready notification, we will retry the first I/O on the queue.
794 * Unfortunately, SCIL also doesn't cleanly handle starting the new I/O within
795 * the context of the completion handler, so we need to retry these I/O after
796 * the completion handler is done executing.
799 isci_controller_release_queued_ccbs(struct ISCI_CONTROLLER *controller)
801 struct ISCI_REMOTE_DEVICE *dev;
802 struct ccb_hdr *ccb_h;
805 KASSERT(mtx_owned(&controller->lock), ("controller lock not owned"));
807 controller->release_queued_ccbs = FALSE;
809 dev_idx < SCI_MAX_REMOTE_DEVICES;
812 dev = controller->remote_device[dev_idx];
814 dev->release_queued_ccb == TRUE &&
815 dev->queued_ccb_in_progress == NULL) {
816 dev->release_queued_ccb = FALSE;
817 ccb_h = TAILQ_FIRST(&dev->queued_ccbs);
822 isci_log_message(1, "ISCI", "release %p %x\n", ccb_h,
823 ((union ccb *)ccb_h)->csio.cdb_io.cdb_bytes[0]);
825 dev->queued_ccb_in_progress = (union ccb *)ccb_h;
826 isci_io_request_execute_scsi_io(
827 (union ccb *)ccb_h, controller);