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isci: unify remote_device destruct_handlers

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

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2011-05-01 14:38:26 -07:00
parent 1a6de2562b
commit b8d82f6cdd
2 changed files with 17 additions and 55 deletions
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66
drivers/scsi/isci/remote_device.c
View file

@ -434,12 +434,6 @@ default_device_handler(struct scic_sds_remote_device *sci_dev,
return SCI_FAILURE_INVALID_STATE;
}
static enum sci_status scic_sds_remote_device_default_destruct_handler(
struct scic_sds_remote_device *sci_dev)
{
return default_device_handler(sci_dev, __func__);
}
static enum sci_status scic_sds_remote_device_default_reset_handler(
struct scic_sds_remote_device *sci_dev)
{
@ -659,33 +653,6 @@ static enum sci_status scic_sds_remote_device_general_event_handler(
true);
}
/**
*
* @sci_dev: The struct scic_sds_remote_device which is cast into a
* struct scic_sds_remote_device.
*
* This method will destruct a struct scic_sds_remote_device that is in a stopped
* state. This is the only state from which a destruct request will succeed.
* The RNi for this struct scic_sds_remote_device is returned to the free pool and the
* device object transitions to the SCI_BASE_REMOTE_DEVICE_STATE_FINAL.
* enum sci_status SCI_SUCCESS
*/
static enum sci_status scic_sds_remote_device_stopped_state_destruct_handler(
struct scic_sds_remote_device *sci_dev)
{
struct scic_sds_controller *scic;
scic = scic_sds_remote_device_get_controller(sci_dev);
scic_sds_controller_free_remote_node_context(scic, sci_dev,
sci_dev->rnc.remote_node_index);
sci_dev->rnc.remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX;
sci_base_state_machine_change_state(&sci_dev->state_machine,
SCI_BASE_REMOTE_DEVICE_STATE_FINAL);
return SCI_SUCCESS;
}
/**
*
* @device: The struct scic_sds_remote_device object which is cast to a
@ -1256,7 +1223,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_default_reset_handler,
.reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler,
.start_io_handler = scic_sds_remote_device_default_start_request_handler,
@ -1270,7 +1236,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_stopped_state_destruct_handler,
.reset_handler = scic_sds_remote_device_default_reset_handler,
.reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler,
.start_io_handler = scic_sds_remote_device_default_start_request_handler,
@ -1284,7 +1249,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_default_reset_handler,
.reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler,
.start_io_handler = scic_sds_remote_device_default_start_request_handler,
@ -1298,7 +1262,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_ready_state_reset_handler,
.reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler,
.start_io_handler = scic_sds_remote_device_ready_state_start_io_handler,
@ -1312,7 +1275,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_ready_state_reset_handler,
.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,
@ -1326,7 +1288,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_ready_state_reset_handler,
.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,
@ -1340,7 +1301,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_ready_state_reset_handler,
.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,
@ -1354,7 +1314,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_ready_state_reset_handler,
.reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler,
.start_io_handler = scic_sds_remote_device_default_start_request_handler,
@ -1368,7 +1327,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_ready_state_reset_handler,
.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,
@ -1382,7 +1340,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_default_reset_handler,
.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,
@ -1396,7 +1353,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_default_reset_handler,
.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,
@ -1410,7 +1366,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_default_reset_handler,
.reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler,
.start_io_handler = scic_sds_remote_device_default_start_request_handler,
@ -1424,7 +1379,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_default_reset_handler,
.reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler,
.start_io_handler = scic_sds_remote_device_default_start_request_handler,
@ -1438,7 +1392,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_default_reset_handler,
.reset_complete_handler = scic_sds_remote_device_resetting_state_reset_complete_handler,
.start_io_handler = scic_sds_remote_device_default_start_request_handler,
@ -1452,7 +1405,6 @@ 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] = {
.destruct_handler = scic_sds_remote_device_default_destruct_handler,
.reset_handler = scic_sds_remote_device_default_reset_handler,
.reset_complete_handler = scic_sds_remote_device_default_reset_complete_handler,
.start_io_handler = scic_sds_remote_device_default_start_request_handler,
@ -1494,7 +1446,23 @@ static void scic_sds_remote_device_initial_state_enter(void *object)
*/
static enum sci_status scic_remote_device_destruct(struct scic_sds_remote_device *sci_dev)
{
return sci_dev->state_handlers->destruct_handler(sci_dev);
struct sci_base_state_machine *sm = &sci_dev->state_machine;
enum scic_sds_remote_device_states state = sm->current_state_id;
struct scic_sds_controller *scic;
if (state != SCI_BASE_REMOTE_DEVICE_STATE_STOPPED) {
dev_warn(scirdev_to_dev(sci_dev), "%s: in wrong state: %d\n",
__func__, state);
return SCI_FAILURE_INVALID_STATE;
}
scic = sci_dev->owning_port->owning_controller;
scic_sds_controller_free_remote_node_context(scic, sci_dev,
sci_dev->rnc.remote_node_index);
sci_dev->rnc.remote_node_index = SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX;
sci_base_state_machine_change_state(sm, SCI_BASE_REMOTE_DEVICE_STATE_FINAL);
return SCI_SUCCESS;
}
/**

6
drivers/scsi/isci/remote_device.h
View file

@ -386,12 +386,6 @@ typedef void (*scic_sds_remote_device_ready_not_ready_handler_t)(
*
*/
struct scic_sds_remote_device_state_handler {
/**
* The destruct_handler specifies the method invoked when attempting to
* destruct a remote device.
*/
scic_sds_remote_device_handler_t destruct_handler;
/**
* The reset handler specifies the method invloked when requesting to
* reset a remote device.