diff options
author | Dan Williams <dan.j.williams@intel.com> | 2011-06-27 14:57:03 -0700 |
---|---|---|
committer | Dan Williams <dan.j.williams@intel.com> | 2011-07-03 04:04:52 -0700 |
commit | 5076a1a97e2fa61c847a5fdd4b1991faf7716da6 (patch) | |
tree | 251d207e75439da25d4d3a0353e0b853c8e79f2b /drivers/scsi/isci/host.c | |
parent | ba7cb22342a66505a831bb7e4541fef90e0193c9 (diff) |
isci: unify isci_request and scic_sds_request
They are one in the same object so remove the distinction. The near
duplicate fields (owning_controller, and isci_host) will be cleaned up
after the scic_sds_contoller isci_host unification.
Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/scsi/isci/host.c')
-rw-r--r-- | drivers/scsi/isci/host.c | 98 |
1 files changed, 41 insertions, 57 deletions
diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 0884ae3253e..d91cd6d8274 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -258,21 +258,20 @@ static void scic_sds_controller_task_completion(struct scic_sds_controller *scic u32 index = SCU_GET_COMPLETION_INDEX(completion_entry); struct isci_host *ihost = scic_to_ihost(scic); struct isci_request *ireq = ihost->reqs[index]; - struct scic_sds_request *sci_req = &ireq->sci; /* Make sure that we really want to process this IO request */ if (test_bit(IREQ_ACTIVE, &ireq->flags) && - sci_req->io_tag != SCI_CONTROLLER_INVALID_IO_TAG && - ISCI_TAG_SEQ(sci_req->io_tag) == scic->io_request_sequence[index]) + ireq->io_tag != SCI_CONTROLLER_INVALID_IO_TAG && + ISCI_TAG_SEQ(ireq->io_tag) == scic->io_request_sequence[index]) /* Yep this is a valid io request pass it along to the io request handler */ - scic_sds_io_request_tc_completion(sci_req, completion_entry); + scic_sds_io_request_tc_completion(ireq, completion_entry); } static void scic_sds_controller_sdma_completion(struct scic_sds_controller *scic, u32 completion_entry) { u32 index; - struct scic_sds_request *io_request; + struct isci_request *ireq; struct scic_sds_remote_device *device; index = SCU_GET_COMPLETION_INDEX(completion_entry); @@ -280,41 +279,27 @@ static void scic_sds_controller_sdma_completion(struct scic_sds_controller *scic switch (scu_get_command_request_type(completion_entry)) { case SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_TC: case SCU_CONTEXT_COMMAND_REQUEST_TYPE_DUMP_TC: - io_request = &scic_to_ihost(scic)->reqs[index]->sci; - dev_warn(scic_to_dev(scic), - "%s: SCIC SDS Completion type SDMA %x for io request " - "%p\n", - __func__, - completion_entry, - io_request); + ireq = scic_to_ihost(scic)->reqs[index]; + dev_warn(scic_to_dev(scic), "%s: %x for io request %p\n", + __func__, completion_entry, ireq); /* @todo For a post TC operation we need to fail the IO * request */ break; - case SCU_CONTEXT_COMMAND_REQUEST_TYPE_DUMP_RNC: case SCU_CONTEXT_COMMAND_REQUEST_TYPE_OTHER_RNC: case SCU_CONTEXT_COMMAND_REQUEST_TYPE_POST_RNC: device = scic->device_table[index]; - dev_warn(scic_to_dev(scic), - "%s: SCIC SDS Completion type SDMA %x for remote " - "device %p\n", - __func__, - completion_entry, - device); + dev_warn(scic_to_dev(scic), "%s: %x for device %p\n", + __func__, completion_entry, device); /* @todo For a port RNC operation we need to fail the * device */ break; - default: - dev_warn(scic_to_dev(scic), - "%s: SCIC SDS Completion unknown SDMA completion " - "type %x\n", - __func__, - completion_entry); + dev_warn(scic_to_dev(scic), "%s: unknown completion type %x\n", + __func__, completion_entry); break; - } } @@ -385,8 +370,8 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci u32 completion_entry) { struct isci_host *ihost = scic_to_ihost(scic); - struct scic_sds_request *io_request; struct scic_sds_remote_device *device; + struct isci_request *ireq; struct scic_sds_phy *phy; u32 index; @@ -418,17 +403,17 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci break; case SCU_EVENT_TYPE_TRANSPORT_ERROR: - io_request = &ihost->reqs[index]->sci; - scic_sds_io_request_event_handler(io_request, completion_entry); + ireq = ihost->reqs[index]; + scic_sds_io_request_event_handler(ireq, completion_entry); break; case SCU_EVENT_TYPE_PTX_SCHEDULE_EVENT: switch (scu_get_event_specifier(completion_entry)) { case SCU_EVENT_SPECIFIC_SMP_RESPONSE_NO_PE: case SCU_EVENT_SPECIFIC_TASK_TIMEOUT: - io_request = &ihost->reqs[index]->sci; - if (io_request != NULL) - scic_sds_io_request_event_handler(io_request, completion_entry); + ireq = ihost->reqs[index]; + if (ireq != NULL) + scic_sds_io_request_event_handler(ireq, completion_entry); else dev_warn(scic_to_dev(scic), "%s: SCIC Controller 0x%p received " @@ -1185,7 +1170,7 @@ static void isci_host_completion_routine(unsigned long data) } spin_lock_irq(&isci_host->scic_lock); - isci_free_tag(isci_host, request->sci.io_tag); + isci_free_tag(isci_host, request->io_tag); spin_unlock_irq(&isci_host->scic_lock); } list_for_each_entry_safe(request, next_request, &errored_request_list, @@ -1222,7 +1207,7 @@ static void isci_host_completion_routine(unsigned long data) * of pending requests. */ list_del_init(&request->dev_node); - isci_free_tag(isci_host, request->sci.io_tag); + isci_free_tag(isci_host, request->io_tag); spin_unlock_irq(&isci_host->scic_lock); } } @@ -2486,8 +2471,8 @@ int isci_host_init(struct isci_host *isci_host) if (!ireq) return -ENOMEM; - ireq->sci.tc = &isci_host->sci.task_context_table[i]; - ireq->sci.owning_controller = &isci_host->sci; + ireq->tc = &isci_host->sci.task_context_table[i]; + ireq->owning_controller = &isci_host->sci; spin_lock_init(&ireq->state_lock); ireq->request_daddr = dma; ireq->isci_host = isci_host; @@ -2600,7 +2585,7 @@ void scic_sds_controller_post_request( writel(request, &scic->smu_registers->post_context_port); } -struct scic_sds_request *scic_request_by_tag(struct scic_sds_controller *scic, u16 io_tag) +struct isci_request *scic_request_by_tag(struct scic_sds_controller *scic, u16 io_tag) { u16 task_index; u16 task_sequence; @@ -2614,7 +2599,7 @@ struct scic_sds_request *scic_request_by_tag(struct scic_sds_controller *scic, u task_sequence = ISCI_TAG_SEQ(io_tag); if (task_sequence == scic->io_request_sequence[task_index]) - return &ireq->sci; + return ireq; } } @@ -2814,7 +2799,7 @@ enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag) */ enum sci_status scic_controller_start_io(struct scic_sds_controller *scic, struct scic_sds_remote_device *rdev, - struct scic_sds_request *req) + struct isci_request *ireq) { enum sci_status status; @@ -2823,12 +2808,12 @@ enum sci_status scic_controller_start_io(struct scic_sds_controller *scic, return SCI_FAILURE_INVALID_STATE; } - status = scic_sds_remote_device_start_io(scic, rdev, req); + status = scic_sds_remote_device_start_io(scic, rdev, ireq); if (status != SCI_SUCCESS) return status; - set_bit(IREQ_ACTIVE, &sci_req_to_ireq(req)->flags); - scic_sds_controller_post_request(scic, scic_sds_request_get_post_context(req)); + set_bit(IREQ_ACTIVE, &ireq->flags); + scic_sds_controller_post_request(scic, scic_sds_request_get_post_context(ireq)); return SCI_SUCCESS; } @@ -2851,7 +2836,7 @@ enum sci_status scic_controller_start_io(struct scic_sds_controller *scic, enum sci_status scic_controller_terminate_request( struct scic_sds_controller *scic, struct scic_sds_remote_device *rdev, - struct scic_sds_request *req) + struct isci_request *ireq) { enum sci_status status; @@ -2861,7 +2846,7 @@ enum sci_status scic_controller_terminate_request( return SCI_FAILURE_INVALID_STATE; } - status = scic_sds_io_request_terminate(req); + status = scic_sds_io_request_terminate(ireq); if (status != SCI_SUCCESS) return status; @@ -2870,7 +2855,7 @@ enum sci_status scic_controller_terminate_request( * request sub-type. */ scic_sds_controller_post_request(scic, - scic_sds_request_get_post_context(req) | + scic_sds_request_get_post_context(ireq) | SCU_CONTEXT_COMMAND_REQUEST_POST_TC_ABORT); return SCI_SUCCESS; } @@ -2889,7 +2874,7 @@ enum sci_status scic_controller_terminate_request( enum sci_status scic_controller_complete_io( struct scic_sds_controller *scic, struct scic_sds_remote_device *rdev, - struct scic_sds_request *request) + struct isci_request *ireq) { enum sci_status status; u16 index; @@ -2899,12 +2884,12 @@ enum sci_status scic_controller_complete_io( /* XXX: Implement this function */ return SCI_FAILURE; case SCIC_READY: - status = scic_sds_remote_device_complete_io(scic, rdev, request); + status = scic_sds_remote_device_complete_io(scic, rdev, ireq); if (status != SCI_SUCCESS) return status; - index = ISCI_TAG_TCI(request->io_tag); - clear_bit(IREQ_ACTIVE, &sci_req_to_ireq(request)->flags); + index = ISCI_TAG_TCI(ireq->io_tag); + clear_bit(IREQ_ACTIVE, &ireq->flags); return SCI_SUCCESS; default: dev_warn(scic_to_dev(scic), "invalid state to complete I/O"); @@ -2913,17 +2898,17 @@ enum sci_status scic_controller_complete_io( } -enum sci_status scic_controller_continue_io(struct scic_sds_request *sci_req) +enum sci_status scic_controller_continue_io(struct isci_request *ireq) { - struct scic_sds_controller *scic = sci_req->owning_controller; + struct scic_sds_controller *scic = ireq->owning_controller; if (scic->sm.current_state_id != SCIC_READY) { dev_warn(scic_to_dev(scic), "invalid state to continue I/O"); return SCI_FAILURE_INVALID_STATE; } - set_bit(IREQ_ACTIVE, &sci_req_to_ireq(sci_req)->flags); - scic_sds_controller_post_request(scic, scic_sds_request_get_post_context(sci_req)); + set_bit(IREQ_ACTIVE, &ireq->flags); + scic_sds_controller_post_request(scic, scic_sds_request_get_post_context(ireq)); return SCI_SUCCESS; } @@ -2939,9 +2924,8 @@ enum sci_status scic_controller_continue_io(struct scic_sds_request *sci_req) enum sci_task_status scic_controller_start_task( struct scic_sds_controller *scic, struct scic_sds_remote_device *rdev, - struct scic_sds_request *req) + struct isci_request *ireq) { - struct isci_request *ireq = sci_req_to_ireq(req); enum sci_status status; if (scic->sm.current_state_id != SCIC_READY) { @@ -2952,7 +2936,7 @@ enum sci_task_status scic_controller_start_task( return SCI_TASK_FAILURE_INVALID_STATE; } - status = scic_sds_remote_device_start_task(scic, rdev, req); + status = scic_sds_remote_device_start_task(scic, rdev, ireq); switch (status) { case SCI_FAILURE_RESET_DEVICE_PARTIAL_SUCCESS: set_bit(IREQ_ACTIVE, &ireq->flags); @@ -2967,7 +2951,7 @@ enum sci_task_status scic_controller_start_task( set_bit(IREQ_ACTIVE, &ireq->flags); scic_sds_controller_post_request(scic, - scic_sds_request_get_post_context(req)); + scic_sds_request_get_post_context(ireq)); break; default: break; |