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>
diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c
index 0884ae3..d91cd6d 100644
--- a/drivers/scsi/isci/host.c
+++ b/drivers/scsi/isci/host.c
@@ -258,21 +258,20 @@
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 @@
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 @@
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 @@
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 @@
}
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 @@
* 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 @@
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 @@
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 @@
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 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 @@
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_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 @@
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 @@
* 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_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 @@
/* 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_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_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 @@
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 @@
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;