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31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
34 #include <dev/isci/isci.h>
36 #include <cam/scsi/scsi_all.h>
37 #include <cam/scsi/scsi_message.h>
39 #include <dev/isci/scil/intel_sas.h>
41 #include <dev/isci/scil/sci_util.h>
43 #include <dev/isci/scil/scif_io_request.h>
44 #include <dev/isci/scil/scif_controller.h>
45 #include <dev/isci/scil/scif_remote_device.h>
46 #include <dev/isci/scil/scif_user_callback.h>
48 #include <dev/isci/scil/scic_io_request.h>
49 #include <dev/isci/scil/scic_user_callback.h>
52 * @brief This user callback will inform the user that an IO request has
55 * @param[in] controller This parameter specifies the controller on
56 * which the IO request is completing.
57 * @param[in] remote_device This parameter specifies the remote device on
58 * which this request is completing.
59 * @param[in] io_request This parameter specifies the IO request that has
61 * @param[in] completion_status This parameter specifies the results of
62 * the IO request operation. SCI_IO_SUCCESS indicates
63 * successful completion.
68 scif_cb_io_request_complete(SCI_CONTROLLER_HANDLE_T scif_controller,
69 SCI_REMOTE_DEVICE_HANDLE_T remote_device,
70 SCI_IO_REQUEST_HANDLE_T io_request, SCI_IO_STATUS completion_status)
72 struct ISCI_IO_REQUEST *isci_request =
73 (struct ISCI_IO_REQUEST *)sci_object_get_association(io_request);
75 scif_controller_complete_io(scif_controller, remote_device, io_request);
76 isci_io_request_complete(scif_controller, remote_device, isci_request,
81 isci_io_request_complete(SCI_CONTROLLER_HANDLE_T scif_controller,
82 SCI_REMOTE_DEVICE_HANDLE_T remote_device,
83 struct ISCI_IO_REQUEST *isci_request, SCI_IO_STATUS completion_status)
85 struct ISCI_CONTROLLER *isci_controller;
86 struct ISCI_REMOTE_DEVICE *isci_remote_device;
91 isci_controller = (struct ISCI_CONTROLLER *) sci_object_get_association(scif_controller);
93 (struct ISCI_REMOTE_DEVICE *) sci_object_get_association(remote_device);
95 ccb = isci_request->ccb;
97 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
99 switch (completion_status) {
101 case SCI_IO_SUCCESS_COMPLETE_BEFORE_START:
102 #if __FreeBSD_version >= 900026
103 if (ccb->ccb_h.func_code == XPT_SMP_IO) {
105 scif_io_request_get_response_iu_address(
106 isci_request->sci_object);
108 memcpy(ccb->smpio.smp_response, smp_response,
109 ccb->smpio.smp_response_len);
112 ccb->ccb_h.status |= CAM_REQ_CMP;
115 case SCI_IO_SUCCESS_IO_DONE_EARLY:
116 ccb->ccb_h.status |= CAM_REQ_CMP;
117 ccb->csio.resid = ccb->csio.dxfer_len -
118 scif_io_request_get_number_of_bytes_transferred(
119 isci_request->sci_object);
122 case SCI_IO_FAILURE_RESPONSE_VALID:
124 SCI_SSP_RESPONSE_IU_T * response_buffer;
125 uint32_t sense_length;
126 int error_code, sense_key, asc, ascq;
127 struct ccb_scsiio *csio = &ccb->csio;
129 response_buffer = (SCI_SSP_RESPONSE_IU_T *)
130 scif_io_request_get_response_iu_address(
131 isci_request->sci_object);
133 sense_length = sci_ssp_get_sense_data_length(
134 response_buffer->sense_data_length);
136 sense_length = MIN(csio->sense_len, sense_length);
138 memcpy(&csio->sense_data, response_buffer->data, sense_length);
140 csio->sense_resid = csio->sense_len - sense_length;
141 csio->scsi_status = response_buffer->status;
142 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
143 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
144 scsi_extract_sense( &csio->sense_data, &error_code, &sense_key,
146 isci_log_message(1, "ISCI",
147 "isci: bus=%x target=%x lun=%x cdb[0]=%x status=%x key=%x asc=%x ascq=%x\n",
148 ccb->ccb_h.path_id, ccb->ccb_h.target_id,
149 ccb->ccb_h.target_lun, csio->cdb_io.cdb_bytes[0],
150 csio->scsi_status, sense_key, asc, ascq);
154 case SCI_IO_FAILURE_REMOTE_DEVICE_RESET_REQUIRED:
155 isci_remote_device_reset(isci_remote_device, NULL);
158 case SCI_IO_FAILURE_TERMINATED:
159 ccb->ccb_h.status |= CAM_REQ_TERMIO;
160 isci_log_message(1, "ISCI",
161 "isci: bus=%x target=%x lun=%x cdb[0]=%x terminated\n",
162 ccb->ccb_h.path_id, ccb->ccb_h.target_id,
163 ccb->ccb_h.target_lun, ccb->csio.cdb_io.cdb_bytes[0]);
166 case SCI_IO_FAILURE_INVALID_STATE:
167 case SCI_IO_FAILURE_INSUFFICIENT_RESOURCES:
168 complete_ccb = FALSE;
171 case SCI_IO_FAILURE_INVALID_REMOTE_DEVICE:
172 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
175 case SCI_IO_FAILURE_NO_NCQ_TAG_AVAILABLE:
177 struct ccb_relsim ccb_relsim;
178 struct cam_path *path;
180 xpt_create_path(&path, NULL,
181 cam_sim_path(isci_controller->sim),
182 isci_remote_device->index, 0);
184 xpt_setup_ccb(&ccb_relsim.ccb_h, path, 5);
185 ccb_relsim.ccb_h.func_code = XPT_REL_SIMQ;
186 ccb_relsim.ccb_h.flags = CAM_DEV_QFREEZE;
187 ccb_relsim.release_flags = RELSIM_ADJUST_OPENINGS;
188 ccb_relsim.openings =
189 scif_remote_device_get_max_queue_depth(remote_device);
190 xpt_action((union ccb *)&ccb_relsim);
192 complete_ccb = FALSE;
197 case SCI_IO_FAILURE_REQUIRES_SCSI_ABORT:
198 case SCI_IO_FAILURE_UNSUPPORTED_PROTOCOL:
199 case SCI_IO_FAILURE_PROTOCOL_VIOLATION:
200 case SCI_IO_FAILURE_INVALID_PARAMETER_VALUE:
201 case SCI_IO_FAILURE_CONTROLLER_SPECIFIC_ERR:
203 isci_log_message(1, "ISCI",
204 "isci: bus=%x target=%x lun=%x cdb[0]=%x completion status=%x\n",
205 ccb->ccb_h.path_id, ccb->ccb_h.target_id,
206 ccb->ccb_h.target_lun, ccb->csio.cdb_io.cdb_bytes[0],
208 ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
212 callout_stop(&isci_request->parent.timer);
213 bus_dmamap_sync(isci_request->parent.dma_tag,
214 isci_request->parent.dma_map,
215 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
217 bus_dmamap_unload(isci_request->parent.dma_tag,
218 isci_request->parent.dma_map);
220 isci_request->ccb = NULL;
222 sci_pool_put(isci_controller->request_pool,
223 (struct ISCI_REQUEST *)isci_request);
226 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
227 /* ccb will be completed with some type of non-success
228 * status. So temporarily freeze the queue until the
229 * upper layers can act on the status. The
230 * CAM_DEV_QFRZN flag will then release the queue
231 * after the status is acted upon.
233 ccb->ccb_h.status |= CAM_DEV_QFRZN;
234 xpt_freeze_devq(ccb->ccb_h.path, 1);
237 if (ccb->ccb_h.status & CAM_SIM_QUEUED) {
239 KASSERT(ccb == isci_remote_device->queued_ccb_in_progress,
240 ("multiple internally queued ccbs in flight"));
242 TAILQ_REMOVE(&isci_remote_device->queued_ccbs,
243 &ccb->ccb_h, sim_links.tqe);
244 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
247 * This CCB that was in the queue was completed, so
248 * set the in_progress pointer to NULL denoting that
249 * we can retry another CCB from the queue. We only
250 * allow one CCB at a time from the queue to be
251 * in progress so that we can effectively maintain
254 isci_remote_device->queued_ccb_in_progress = NULL;
257 if (isci_remote_device->frozen_lun_mask != 0) {
258 isci_remote_device_release_device_queue(isci_remote_device);
263 if (isci_controller->is_frozen == TRUE) {
264 isci_controller->is_frozen = FALSE;
265 xpt_release_simq(isci_controller->sim, TRUE);
268 isci_remote_device_freeze_lun_queue(isci_remote_device,
269 ccb->ccb_h.target_lun);
271 if (ccb->ccb_h.status & CAM_SIM_QUEUED) {
273 KASSERT(ccb == isci_remote_device->queued_ccb_in_progress,
274 ("multiple internally queued ccbs in flight"));
277 * Do nothing, CCB is already on the device's queue.
278 * We leave it on the queue, to be retried again
279 * next time a CCB on this device completes, or we
280 * get a ready notification for this device.
282 isci_log_message(1, "ISCI", "already queued %p %x\n",
283 ccb, ccb->csio.cdb_io.cdb_bytes[0]);
285 isci_remote_device->queued_ccb_in_progress = NULL;
288 isci_log_message(1, "ISCI", "queue %p %x\n", ccb,
289 ccb->csio.cdb_io.cdb_bytes[0]);
290 ccb->ccb_h.status |= CAM_SIM_QUEUED;
292 TAILQ_INSERT_TAIL(&isci_remote_device->queued_ccbs,
293 &ccb->ccb_h, sim_links.tqe);
299 * @brief This callback method asks the user to provide the physical
300 * address for the supplied virtual address when building an
303 * @param[in] controller This parameter is the core controller object
305 * @param[in] io_request This parameter is the io request object handle
306 * for which the physical address is being requested.
307 * @param[in] virtual_address This paramter is the virtual address which
308 * is to be returned as a physical address.
309 * @param[out] physical_address The physical address for the supplied virtual
315 scic_cb_io_request_get_physical_address(SCI_CONTROLLER_HANDLE_T controller,
316 SCI_IO_REQUEST_HANDLE_T io_request, void *virtual_address,
317 SCI_PHYSICAL_ADDRESS *physical_address)
319 SCI_IO_REQUEST_HANDLE_T scif_request =
320 sci_object_get_association(io_request);
321 struct ISCI_REQUEST *isci_request =
322 sci_object_get_association(scif_request);
324 if(isci_request != NULL) {
325 /* isci_request is not NULL, meaning this is a request initiated
326 * by CAM or the isci layer (i.e. device reset for I/O
327 * timeout). Therefore we can calculate the physical address
328 * based on the address we stored in the struct ISCI_REQUEST
331 *physical_address = isci_request->physical_address +
332 (uintptr_t)virtual_address -
333 (uintptr_t)isci_request;
335 /* isci_request is NULL, meaning this is a request generated
336 * internally by SCIL (i.e. for SMP requests or NCQ error
337 * recovery). Therefore we calculate the physical address
338 * based on the controller's uncached controller memory buffer,
339 * since we know that this is what SCIL uses for internal
340 * framework requests.
342 SCI_CONTROLLER_HANDLE_T scif_controller =
343 (SCI_CONTROLLER_HANDLE_T) sci_object_get_association(controller);
344 struct ISCI_CONTROLLER *isci_controller =
345 (struct ISCI_CONTROLLER *)sci_object_get_association(scif_controller);
346 U64 virt_addr_offset = (uintptr_t)virtual_address -
347 (U64)isci_controller->uncached_controller_memory.virtual_address;
350 isci_controller->uncached_controller_memory.physical_address
356 * @brief This callback method asks the user to provide the address for
357 * the command descriptor block (CDB) associated with this IO request.
359 * @param[in] scif_user_io_request This parameter points to the user's
360 * IO request object. It is a cookie that allows the user to
361 * provide the necessary information for this callback.
363 * @return This method returns the virtual address of the CDB.
366 scif_cb_io_request_get_cdb_address(void * scif_user_io_request)
368 struct ISCI_IO_REQUEST *isci_request =
369 (struct ISCI_IO_REQUEST *)scif_user_io_request;
371 return (isci_request->ccb->csio.cdb_io.cdb_bytes);
375 * @brief This callback method asks the user to provide the length of
376 * the command descriptor block (CDB) associated with this IO request.
378 * @param[in] scif_user_io_request This parameter points to the user's
379 * IO request object. It is a cookie that allows the user to
380 * provide the necessary information for this callback.
382 * @return This method returns the length of the CDB.
385 scif_cb_io_request_get_cdb_length(void * scif_user_io_request)
387 struct ISCI_IO_REQUEST *isci_request =
388 (struct ISCI_IO_REQUEST *)scif_user_io_request;
390 return (isci_request->ccb->csio.cdb_len);
394 * @brief This callback method asks the user to provide the Logical Unit (LUN)
395 * associated with this IO request.
397 * @note The contents of the value returned from this callback are defined
398 * by the protocol standard (e.g. T10 SAS specification). Please
399 * refer to the transport command information unit description
400 * in the associated standard.
402 * @param[in] scif_user_io_request This parameter points to the user's
403 * IO request object. It is a cookie that allows the user to
404 * provide the necessary information for this callback.
406 * @return This method returns the LUN associated with this request.
409 scif_cb_io_request_get_lun(void * scif_user_io_request)
411 struct ISCI_IO_REQUEST *isci_request =
412 (struct ISCI_IO_REQUEST *)scif_user_io_request;
414 return (isci_request->ccb->ccb_h.target_lun);
418 * @brief This callback method asks the user to provide the task attribute
419 * associated with this IO request.
421 * @note The contents of the value returned from this callback are defined
422 * by the protocol standard (e.g. T10 SAS specification). Please
423 * refer to the transport command information unit description
424 * in the associated standard.
426 * @param[in] scif_user_io_request This parameter points to the user's
427 * IO request object. It is a cookie that allows the user to
428 * provide the necessary information for this callback.
430 * @return This method returns the task attribute associated with this
434 scif_cb_io_request_get_task_attribute(void * scif_user_io_request)
436 struct ISCI_IO_REQUEST *isci_request =
437 (struct ISCI_IO_REQUEST *)scif_user_io_request;
438 uint32_t task_attribute;
440 if((isci_request->ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) != 0)
441 switch(isci_request->ccb->csio.tag_action) {
442 case MSG_HEAD_OF_Q_TAG:
443 task_attribute = SCI_SAS_HEAD_OF_QUEUE_ATTRIBUTE;
446 case MSG_ORDERED_Q_TAG:
447 task_attribute = SCI_SAS_ORDERED_ATTRIBUTE;
451 task_attribute = SCI_SAS_ACA_ATTRIBUTE;
455 task_attribute = SCI_SAS_SIMPLE_ATTRIBUTE;
459 task_attribute = SCI_SAS_SIMPLE_ATTRIBUTE;
461 return (task_attribute);
465 * @brief This callback method asks the user to provide the command priority
466 * associated with this IO request.
468 * @note The contents of the value returned from this callback are defined
469 * by the protocol standard (e.g. T10 SAS specification). Please
470 * refer to the transport command information unit description
471 * in the associated standard.
473 * @param[in] scif_user_io_request This parameter points to the user's
474 * IO request object. It is a cookie that allows the user to
475 * provide the necessary information for this callback.
477 * @return This method returns the command priority associated with this
481 scif_cb_io_request_get_command_priority(void * scif_user_io_request)
487 * @brief This method simply returns the virtual address associated
488 * with the scsi_io and byte_offset supplied parameters.
490 * @note This callback is not utilized in the fast path. The expectation
491 * is that this method is utilized for items such as SCSI to ATA
492 * translation for commands like INQUIRY, READ CAPACITY, etc.
494 * @param[in] scif_user_io_request This parameter points to the user's
495 * IO request object. It is a cookie that allows the user to
496 * provide the necessary information for this callback.
497 * @param[in] byte_offset This parameter specifies the offset into the data
498 * buffers pointed to by the SGL. The byte offset starts at 0
499 * and continues until the last byte pointed to be the last SGL
502 * @return A virtual address pointer to the location specified by the
506 scif_cb_io_request_get_virtual_address_from_sgl(void * scif_user_io_request,
507 uint32_t byte_offset)
509 struct ISCI_IO_REQUEST *isci_request;
513 isci_request = scif_user_io_request;
514 ccb = isci_request->ccb;
517 * This callback is only invoked for SCSI/ATA translation of
518 * PIO commands such as INQUIRY and READ_CAPACITY, to allow
519 * the driver to write the translated data directly into the
520 * data buffer. It is never invoked for READ/WRITE commands.
521 * The driver currently assumes only READ/WRITE commands will
524 * As a safeguard against future changes to unmapped commands,
525 * add an explicit panic here should the DATA_MASK != VADDR.
526 * Otherwise, we would return some garbage pointer back to the
527 * caller which would result in a panic or more subtle data
528 * corruption later on.
530 if ((ccb->ccb_h.flags & CAM_DATA_MASK) != CAM_DATA_VADDR)
531 panic("%s: requesting pointer into unmapped ccb", __func__);
533 return (ccb->csio.data_ptr + byte_offset);
537 * @brief This callback method asks the user to provide the number of
538 * bytes to be transfered as part of this request.
540 * @param[in] scif_user_io_request This parameter points to the user's
541 * IO request object. It is a cookie that allows the user to
542 * provide the necessary information for this callback.
544 * @return This method returns the number of payload data bytes to be
545 * transfered for this IO request.
548 scif_cb_io_request_get_transfer_length(void * scif_user_io_request)
550 struct ISCI_IO_REQUEST *isci_request =
551 (struct ISCI_IO_REQUEST *)scif_user_io_request;
553 return (isci_request->ccb->csio.dxfer_len);
558 * @brief This callback method asks the user to provide the data direction
561 * @param[in] scif_user_io_request This parameter points to the user's
562 * IO request object. It is a cookie that allows the user to
563 * provide the necessary information for this callback.
565 * @return This method returns the value of SCI_IO_REQUEST_DATA_OUT,
566 * SCI_IO_REQUEST_DATA_IN, or SCI_IO_REQUEST_NO_DATA.
568 SCI_IO_REQUEST_DATA_DIRECTION
569 scif_cb_io_request_get_data_direction(void * scif_user_io_request)
571 struct ISCI_IO_REQUEST *isci_request =
572 (struct ISCI_IO_REQUEST *)scif_user_io_request;
574 switch (isci_request->ccb->ccb_h.flags & CAM_DIR_MASK) {
576 return (SCI_IO_REQUEST_DATA_IN);
578 return (SCI_IO_REQUEST_DATA_OUT);
580 return (SCI_IO_REQUEST_NO_DATA);
585 * @brief This callback method asks the user to provide the address
586 * to where the next Scatter-Gather Element is located.
588 * Details regarding usage:
589 * - Regarding the first SGE: the user should initialize an index,
590 * or a pointer, prior to construction of the request that will
591 * reference the very first scatter-gather element. This is
592 * important since this method is called for every scatter-gather
593 * element, including the first element.
594 * - Regarding the last SGE: the user should return NULL from this
595 * method when this method is called and the SGL has exhausted
598 * @param[in] scif_user_io_request This parameter points to the user's
599 * IO request object. It is a cookie that allows the user to
600 * provide the necessary information for this callback.
601 * @param[in] current_sge_address This parameter specifies the address for
602 * the current SGE (i.e. the one that has just processed).
603 * @param[out] next_sge An address specifying the location for the next scatter
604 * gather element to be processed.
609 scif_cb_io_request_get_next_sge(void * scif_user_io_request,
610 void * current_sge_address, void ** next_sge)
612 struct ISCI_IO_REQUEST *isci_request =
613 (struct ISCI_IO_REQUEST *)scif_user_io_request;
615 if (isci_request->current_sge_index == isci_request->num_segments)
618 bus_dma_segment_t *sge =
619 &isci_request->sge[isci_request->current_sge_index];
621 isci_request->current_sge_index++;
627 * @brief This callback method asks the user to provide the contents of the
628 * "address" field in the Scatter-Gather Element.
630 * @param[in] scif_user_io_request This parameter points to the user's
631 * IO request object. It is a cookie that allows the user to
632 * provide the necessary information for this callback.
633 * @param[in] sge_address This parameter specifies the address for the
634 * SGE from which to retrieve the address field.
636 * @return A physical address specifying the contents of the SGE's address
640 scif_cb_sge_get_address_field(void *scif_user_io_request, void *sge_address)
642 bus_dma_segment_t *sge = (bus_dma_segment_t *)sge_address;
644 return ((SCI_PHYSICAL_ADDRESS)sge->ds_addr);
648 * @brief This callback method asks the user to provide the contents of the
649 * "length" field in the Scatter-Gather Element.
651 * @param[in] scif_user_io_request This parameter points to the user's
652 * IO request object. It is a cookie that allows the user to
653 * provide the necessary information for this callback.
654 * @param[in] sge_address This parameter specifies the address for the
655 * SGE from which to retrieve the address field.
657 * @return This method returns the length field specified inside the SGE
658 * referenced by the sge_address parameter.
661 scif_cb_sge_get_length_field(void *scif_user_io_request, void *sge_address)
663 bus_dma_segment_t *sge = (bus_dma_segment_t *)sge_address;
665 return ((uint32_t)sge->ds_len);
669 isci_request_construct(struct ISCI_REQUEST *request,
670 SCI_CONTROLLER_HANDLE_T scif_controller_handle,
671 bus_dma_tag_t io_buffer_dma_tag, bus_addr_t physical_address)
674 request->controller_handle = scif_controller_handle;
675 request->dma_tag = io_buffer_dma_tag;
676 request->physical_address = physical_address;
677 bus_dmamap_create(request->dma_tag, 0, &request->dma_map);
678 callout_init(&request->timer, CALLOUT_MPSAFE);
682 isci_io_request_construct(void *arg, bus_dma_segment_t *seg, int nseg,
686 struct ISCI_IO_REQUEST *io_request = (struct ISCI_IO_REQUEST *)arg;
687 SCI_REMOTE_DEVICE_HANDLE_T *device = io_request->parent.remote_device_handle;
690 io_request->num_segments = nseg;
691 io_request->sge = seg;
692 ccb = io_request->ccb;
695 ccb->ccb_h.status = CAM_REQ_INVALID;
700 status = scif_io_request_construct(
701 io_request->parent.controller_handle,
702 io_request->parent.remote_device_handle,
703 SCI_CONTROLLER_INVALID_IO_TAG, (void *)io_request,
704 (void *)((char*)io_request + sizeof(struct ISCI_IO_REQUEST)),
705 &io_request->sci_object);
707 if (status != SCI_SUCCESS) {
708 isci_io_request_complete(io_request->parent.controller_handle,
709 device, io_request, (SCI_IO_STATUS)status);
713 sci_object_set_association(io_request->sci_object, io_request);
715 bus_dmamap_sync(io_request->parent.dma_tag, io_request->parent.dma_map,
716 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
718 status = (SCI_STATUS)scif_controller_start_io(
719 io_request->parent.controller_handle, device,
720 io_request->sci_object, SCI_CONTROLLER_INVALID_IO_TAG);
722 if (status != SCI_SUCCESS) {
723 isci_io_request_complete(io_request->parent.controller_handle,
724 device, io_request, (SCI_IO_STATUS)status);
728 if (ccb->ccb_h.timeout != CAM_TIME_INFINITY)
729 callout_reset(&io_request->parent.timer, ccb->ccb_h.timeout,
730 isci_io_request_timeout, io_request);
734 isci_io_request_execute_scsi_io(union ccb *ccb,
735 struct ISCI_CONTROLLER *controller)
737 target_id_t target_id = ccb->ccb_h.target_id;
738 struct ISCI_REQUEST *request;
739 struct ISCI_IO_REQUEST *io_request;
740 struct ISCI_REMOTE_DEVICE *device =
741 controller->remote_device[target_id];
744 if (device == NULL) {
745 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
746 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
747 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
752 if (sci_pool_empty(controller->request_pool)) {
753 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
754 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
755 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
756 xpt_freeze_simq(controller->sim, 1);
757 controller->is_frozen = TRUE;
762 ASSERT(device->is_resetting == FALSE);
764 sci_pool_get(controller->request_pool, request);
765 io_request = (struct ISCI_IO_REQUEST *)request;
767 io_request->ccb = ccb;
768 io_request->current_sge_index = 0;
769 io_request->parent.remote_device_handle = device->sci_object;
771 error = bus_dmamap_load_ccb(io_request->parent.dma_tag,
772 io_request->parent.dma_map, ccb,
773 isci_io_request_construct, io_request, 0x0);
774 /* A resource shortage from BUSDMA will be automatically
775 * continued at a later point, pushing the CCB processing
776 * forward, which will in turn unfreeze the simq.
778 if (error == EINPROGRESS) {
779 xpt_freeze_simq(controller->sim, 1);
780 ccb->ccb_h.flags |= CAM_RELEASE_SIMQ;
785 isci_io_request_timeout(void *arg)
787 struct ISCI_IO_REQUEST *request = (struct ISCI_IO_REQUEST *)arg;
788 struct ISCI_REMOTE_DEVICE *remote_device = (struct ISCI_REMOTE_DEVICE *)
789 sci_object_get_association(request->parent.remote_device_handle);
790 struct ISCI_CONTROLLER *controller = remote_device->domain->controller;
792 mtx_lock(&controller->lock);
793 isci_remote_device_reset(remote_device, NULL);
794 mtx_unlock(&controller->lock);
797 #if __FreeBSD_version >= 900026
799 * @brief This callback method gets the size of and pointer to the buffer
800 * (if any) containing the request buffer for an SMP request.
802 * @param[in] core_request This parameter specifies the SCI core's request
803 * object associated with the SMP request.
804 * @param[out] smp_request_buffer This parameter returns a pointer to the
805 * payload portion of the SMP request - i.e. everything after
806 * the SMP request header.
808 * @return Size of the request buffer in bytes. This does *not* include
809 * the size of the SMP request header.
812 smp_io_request_cb_get_request_buffer(SCI_IO_REQUEST_HANDLE_T core_request,
813 uint8_t ** smp_request_buffer)
815 struct ISCI_IO_REQUEST *isci_request = (struct ISCI_IO_REQUEST *)
816 sci_object_get_association(sci_object_get_association(core_request));
818 *smp_request_buffer = isci_request->ccb->smpio.smp_request +
819 sizeof(SMP_REQUEST_HEADER_T);
821 return (isci_request->ccb->smpio.smp_request_len -
822 sizeof(SMP_REQUEST_HEADER_T));
826 * @brief This callback method gets the SMP function for an SMP request.
828 * @param[in] core_request This parameter specifies the SCI core's request
829 * object associated with the SMP request.
831 * @return SMP function for the SMP request.
834 smp_io_request_cb_get_function(SCI_IO_REQUEST_HANDLE_T core_request)
836 struct ISCI_IO_REQUEST *isci_request = (struct ISCI_IO_REQUEST *)
837 sci_object_get_association(sci_object_get_association(core_request));
838 SMP_REQUEST_HEADER_T *header =
839 (SMP_REQUEST_HEADER_T *)isci_request->ccb->smpio.smp_request;
841 return (header->function);
845 * @brief This callback method gets the SMP frame type for an SMP request.
847 * @param[in] core_request This parameter specifies the SCI core's request
848 * object associated with the SMP request.
850 * @return SMP frame type for the SMP request.
853 smp_io_request_cb_get_frame_type(SCI_IO_REQUEST_HANDLE_T core_request)
855 struct ISCI_IO_REQUEST *isci_request = (struct ISCI_IO_REQUEST *)
856 sci_object_get_association(sci_object_get_association(core_request));
857 SMP_REQUEST_HEADER_T *header =
858 (SMP_REQUEST_HEADER_T *)isci_request->ccb->smpio.smp_request;
860 return (header->smp_frame_type);
864 * @brief This callback method gets the allocated response length for an SMP request.
866 * @param[in] core_request This parameter specifies the SCI core's request
867 * object associated with the SMP request.
869 * @return Allocated response length for the SMP request.
872 smp_io_request_cb_get_allocated_response_length(
873 SCI_IO_REQUEST_HANDLE_T core_request)
875 struct ISCI_IO_REQUEST *isci_request = (struct ISCI_IO_REQUEST *)
876 sci_object_get_association(sci_object_get_association(core_request));
877 SMP_REQUEST_HEADER_T *header =
878 (SMP_REQUEST_HEADER_T *)isci_request->ccb->smpio.smp_request;
880 return (header->allocated_response_length);
884 isci_smp_request_construct(struct ISCI_IO_REQUEST *request)
887 SCIC_SMP_PASSTHRU_REQUEST_CALLBACKS_T callbacks;
889 status = scif_request_construct(request->parent.controller_handle,
890 request->parent.remote_device_handle, SCI_CONTROLLER_INVALID_IO_TAG,
892 (void *)((char*)request + sizeof(struct ISCI_IO_REQUEST)),
893 &request->sci_object);
895 if (status == SCI_SUCCESS) {
896 callbacks.scic_cb_smp_passthru_get_request =
897 &smp_io_request_cb_get_request_buffer;
898 callbacks.scic_cb_smp_passthru_get_function =
899 &smp_io_request_cb_get_function;
900 callbacks.scic_cb_smp_passthru_get_frame_type =
901 &smp_io_request_cb_get_frame_type;
902 callbacks.scic_cb_smp_passthru_get_allocated_response_length =
903 &smp_io_request_cb_get_allocated_response_length;
905 /* create the smp passthrough part of the io request */
906 status = scic_io_request_construct_smp_pass_through(
907 scif_io_request_get_scic_handle(request->sci_object),
915 isci_io_request_execute_smp_io(union ccb *ccb,
916 struct ISCI_CONTROLLER *controller)
919 target_id_t target_id = ccb->ccb_h.target_id;
920 struct ISCI_REQUEST *request;
921 struct ISCI_IO_REQUEST *io_request;
922 SCI_REMOTE_DEVICE_HANDLE_T smp_device_handle;
923 struct ISCI_REMOTE_DEVICE *end_device = controller->remote_device[target_id];
925 /* SMP commands are sent to an end device, because SMP devices are not
926 * exposed to the kernel. It is our responsibility to use this method
927 * to get the SMP device that contains the specified end device. If
928 * the device is direct-attached, the handle will come back NULL, and
929 * we'll just fail the SMP_IO with DEV_NOT_THERE.
931 scif_remote_device_get_containing_device(end_device->sci_object,
934 if (smp_device_handle == NULL) {
935 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
936 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
937 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
942 if (sci_pool_empty(controller->request_pool)) {
943 ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
944 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
945 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
946 xpt_freeze_simq(controller->sim, 1);
947 controller->is_frozen = TRUE;
952 ASSERT(device->is_resetting == FALSE);
954 sci_pool_get(controller->request_pool, request);
955 io_request = (struct ISCI_IO_REQUEST *)request;
957 io_request->ccb = ccb;
958 io_request->parent.remote_device_handle = smp_device_handle;
960 status = isci_smp_request_construct(io_request);
962 if (status != SCI_SUCCESS) {
963 isci_io_request_complete(controller->scif_controller_handle,
964 smp_device_handle, io_request, (SCI_IO_STATUS)status);
968 sci_object_set_association(io_request->sci_object, io_request);
970 status = (SCI_STATUS) scif_controller_start_io(
971 controller->scif_controller_handle, smp_device_handle,
972 io_request->sci_object, SCI_CONTROLLER_INVALID_IO_TAG);
974 if (status != SCI_SUCCESS) {
975 isci_io_request_complete(controller->scif_controller_handle,
976 smp_device_handle, io_request, (SCI_IO_STATUS)status);
980 if (ccb->ccb_h.timeout != CAM_TIME_INFINITY)
981 callout_reset(&io_request->parent.timer, ccb->ccb_h.timeout,
982 isci_io_request_timeout, request);