isci: unify remote_device reset_complete_handlers

Implement all states in scic_remote_device_reset_complete() and delete the
state handler.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

2 files changed, 12 insertions, 43 deletions

diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c
index d8968f32ad9a..658781dd65e6 100644
--- a/drivers/scsi/isci/remote_device.c
+++ b/drivers/scsi/isci/remote_device.c
@@ -246,15 +246,20 @@ enum sci_status scic_remote_device_reset(struct scic_sds_remote_device *sci_dev)
 	}
 }
 
-
-enum sci_status scic_remote_device_reset_complete(
-	struct scic_sds_remote_device *sci_dev)
+enum sci_status scic_remote_device_reset_complete(struct scic_sds_remote_device *sci_dev)
 {
-	return sci_dev->state_handlers->reset_complete_handler(sci_dev);
-}
+	struct sci_base_state_machine *sm = &sci_dev->state_machine;
+	enum scic_sds_remote_device_states state = sm->current_state_id;
+
+	if (state != SCI_BASE_REMOTE_DEVICE_STATE_RESETTING) {
+		dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
+			 __func__, state);
+		return SCI_FAILURE_INVALID_STATE;
+	}
 
-#define SCIC_SDS_REMOTE_DEVICE_MINIMUM_TIMER_COUNT (0)
-#define SCIC_SDS_REMOTE_DEVICE_MAXIMUM_TIMER_COUNT (SCI_MAX_REMOTE_DEVICES)
+	sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_READY);
+	return SCI_SUCCESS;
+}
 
 /**
  *
@@ -457,12 +462,6 @@ default_device_handler(struct scic_sds_remote_device *sci_dev,
 	return SCI_FAILURE_INVALID_STATE;
 }
 
-static enum sci_status scic_sds_remote_device_default_reset_complete_handler(
-	struct scic_sds_remote_device *sci_dev)
-{
-	return default_device_handler(sci_dev, __func__);
-}
-
 static enum sci_status scic_sds_remote_device_default_suspend_handler(
 	struct scic_sds_remote_device *sci_dev, u32 suspend_type)
 {
@@ -795,15 +794,6 @@ static enum sci_status scic_sds_remote_device_stopping_state_complete_request_ha
 	return SCI_SUCCESS;
 }
 
-static enum sci_status scic_sds_remote_device_resetting_state_reset_complete_handler(
-	struct scic_sds_remote_device *sci_dev)
-{
-	sci_base_state_machine_change_state(&sci_dev->state_machine,
-					    SCI_BASE_REMOTE_DEVICE_STATE_READY);
-
-	return SCI_SUCCESS;
-}
-
 /* complete requests for this device while it is in the
  * SCI_BASE_REMOTE_DEVICE_STATE_RESETTING state. This method calls the complete
  * method for the request object and if that is successful the port object is
@@ -1223,7 +1213,6 @@ static enum sci_status scic_sds_smp_remote_device_ready_cmd_substate_frame_handl
 
 static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_state_handler_table[] = {
 	[SCI_BASE_REMOTE_DEVICE_STATE_INITIAL] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_remote_device_default_start_request_handler,
 		.complete_io_handler	= scic_sds_remote_device_default_complete_request_handler,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1235,7 +1224,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler		= scic_sds_remote_device_default_frame_handler
 	},
 	[SCI_BASE_REMOTE_DEVICE_STATE_STOPPED] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_remote_device_default_start_request_handler,
 		.complete_io_handler	= scic_sds_remote_device_default_complete_request_handler,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1247,7 +1235,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler		= scic_sds_remote_device_default_frame_handler
 	},
 	[SCI_BASE_REMOTE_DEVICE_STATE_STARTING] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_remote_device_default_start_request_handler,
 		.complete_io_handler	= scic_sds_remote_device_default_complete_request_handler,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1259,7 +1246,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler		= scic_sds_remote_device_default_frame_handler
 	},
 	[SCI_BASE_REMOTE_DEVICE_STATE_READY] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_remote_device_ready_state_start_io_handler,
 		.complete_io_handler	= scic_sds_remote_device_ready_state_complete_request_handler,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1271,7 +1257,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler		= scic_sds_remote_device_general_frame_handler,
 	},
 	[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_stp_remote_device_ready_idle_substate_start_io_handler,
 		.complete_io_handler	= scic_sds_remote_device_default_complete_request_handler,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1283,7 +1268,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler			= scic_sds_remote_device_default_frame_handler
 	},
 	[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_stp_remote_device_ready_cmd_substate_start_io_handler,
 		.complete_io_handler	= scic_sds_stp_remote_device_complete_request,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1295,7 +1279,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler			= scic_sds_stp_remote_device_ready_cmd_substate_frame_handler
 	},
 	[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_stp_remote_device_ready_ncq_substate_start_io_handler,
 		.complete_io_handler	= scic_sds_stp_remote_device_complete_request,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1307,7 +1290,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler			= scic_sds_stp_remote_device_ready_ncq_substate_frame_handler
 	},
 	[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_NCQ_ERROR] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_remote_device_default_start_request_handler,
 		.complete_io_handler	= scic_sds_stp_remote_device_complete_request,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1319,7 +1301,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler			= scic_sds_remote_device_general_frame_handler
 	},
 	[SCIC_SDS_STP_REMOTE_DEVICE_READY_SUBSTATE_AWAIT_RESET] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_stp_remote_device_ready_await_reset_substate_start_io_handler,
 		.complete_io_handler	= scic_sds_stp_remote_device_ready_await_reset_substate_complete_request_handler,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1331,7 +1312,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler			= scic_sds_remote_device_general_frame_handler
 	},
 	[SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_smp_remote_device_ready_idle_substate_start_io_handler,
 		.complete_io_handler	= scic_sds_remote_device_default_complete_request_handler,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1343,7 +1323,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler		= scic_sds_remote_device_default_frame_handler
 	},
 	[SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_smp_remote_device_ready_cmd_substate_start_io_handler,
 		.complete_io_handler	= scic_sds_smp_remote_device_ready_cmd_substate_complete_io_handler,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1355,7 +1334,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler		= scic_sds_smp_remote_device_ready_cmd_substate_frame_handler
 	},
 	[SCI_BASE_REMOTE_DEVICE_STATE_STOPPING] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_remote_device_default_start_request_handler,
 		.complete_io_handler	= scic_sds_remote_device_stopping_state_complete_request_handler,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1367,7 +1345,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler		= scic_sds_remote_device_general_frame_handler
 	},
 	[SCI_BASE_REMOTE_DEVICE_STATE_FAILED] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_remote_device_default_start_request_handler,
 		.complete_io_handler	= scic_sds_remote_device_default_complete_request_handler,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1379,7 +1356,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler		= scic_sds_remote_device_general_frame_handler
 	},
 	[SCI_BASE_REMOTE_DEVICE_STATE_RESETTING] = {
-		.reset_complete_handler	= scic_sds_remote_device_resetting_state_reset_complete_handler,
 		.start_io_handler	= scic_sds_remote_device_default_start_request_handler,
 		.complete_io_handler	= scic_sds_remote_device_resetting_state_complete_request_handler,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
@@ -1391,7 +1367,6 @@ static const struct scic_sds_remote_device_state_handler scic_sds_remote_device_
 		.frame_handler		= scic_sds_remote_device_general_frame_handler
 	},
 	[SCI_BASE_REMOTE_DEVICE_STATE_FINAL] = {
-		.reset_complete_handler	= scic_sds_remote_device_default_reset_complete_handler,
 		.start_io_handler	= scic_sds_remote_device_default_start_request_handler,
 		.complete_io_handler	= scic_sds_remote_device_default_complete_request_handler,
 		.continue_io_handler	= scic_sds_remote_device_default_continue_request_handler,
diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h
index ab7a4c85f6de..51094352d952 100644
--- a/drivers/scsi/isci/remote_device.h
+++ b/drivers/scsi/isci/remote_device.h
@@ -387,12 +387,6 @@ typedef void (*scic_sds_remote_device_ready_not_ready_handler_t)(
  */
 struct scic_sds_remote_device_state_handler {
 	/**
-	 * The reset complete handler specifies the method invloked when
-	 * reporting that a reset has completed to the remote device.
-	 */
-	scic_sds_remote_device_handler_t reset_complete_handler;
-
-	/**
 	 * The start_io_handler specifies the method invoked when a user
 	 * attempts to start an IO request for a remote device.
 	 */