#define SCIC_SDS_PORT_HARD_RESET_TIMEOUT (1000)
#define SCU_DUMMY_INDEX (0xFFFF)
-static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[];
-
static void isci_port_change_state(struct isci_port *iport, enum isci_status status)
{
unsigned long flags;
return true;
}
-/**
- * This method is called to start an IO request on this port.
- * @sci_port:
- * @sci_dev:
- * @sci_req:
- *
- * enum sci_status
- */
-enum sci_status scic_sds_port_start_io(
- struct scic_sds_port *sci_port,
- struct scic_sds_remote_device *sci_dev,
- struct scic_sds_request *sci_req)
-{
- return sci_port->state_handlers->start_io_handler(
- sci_port, sci_dev, sci_req);
-}
-
-/**
- * This method is called to complete an IO request to the port.
- * @sci_port:
- * @sci_dev:
- * @sci_req:
- *
- * enum sci_status
- */
-enum sci_status scic_sds_port_complete_io(
- struct scic_sds_port *sci_port,
- struct scic_sds_remote_device *sci_dev,
- struct scic_sds_request *sci_req)
-{
- return sci_port->state_handlers->complete_io_handler(
- sci_port, sci_dev, sci_req);
-}
-
/**
* This method is provided to timeout requests for port operations. Mostly its
* for the port reset operation.
}
}
-/*
- * ****************************************************************************
- * * READY SUBSTATE HANDLERS
- * **************************************************************************** */
-
-/*
- * This method is the general ready substate complete io handler for the
- * struct scic_sds_port object. This function decrments the outstanding request count
- * for this port object. enum sci_status SCI_SUCCESS
- */
-static enum sci_status scic_sds_port_ready_substate_complete_io_handler(
- struct scic_sds_port *port,
- struct scic_sds_remote_device *device,
- struct scic_sds_request *io_request)
-{
- scic_sds_port_decrement_request_count(port);
-
- return SCI_SUCCESS;
-}
-
-/*
- * This method is the ready waiting substate start io handler for the
- * struct scic_sds_port object. The port object can not accept new requests so the
- * request is failed. enum sci_status SCI_FAILURE_INVALID_STATE
- */
-static enum sci_status scic_sds_port_ready_waiting_substate_start_io_handler(
- struct scic_sds_port *port,
- struct scic_sds_remote_device *device,
- struct scic_sds_request *io_request)
-{
- return SCI_FAILURE_INVALID_STATE;
-}
-
-/*
- * This method is the ready operational substate start io handler for the
- * struct scic_sds_port object. This function incremetns the outstanding request
- * count for this port object. enum sci_status SCI_SUCCESS
- */
-static enum sci_status scic_sds_port_ready_operational_substate_start_io_handler(
- struct scic_sds_port *port,
- struct scic_sds_remote_device *device,
- struct scic_sds_request *io_request)
-{
- port->started_request_count++;
- return SCI_SUCCESS;
-}
-
-/**
- * scic_sds_port_ready_configuring_substate_complete_io_handler() -
- * @port: This is the port that is being requested to complete the io request.
- * @device: This is the device on which the io is completing.
- *
- * This method will decrement the outstanding request count for this port. If
- * the request count goes to 0 then the port can be reprogrammed with its new
- * phy data.
- */
-static enum sci_status
-scic_sds_port_ready_configuring_substate_complete_io_handler(
- struct scic_sds_port *port,
- struct scic_sds_remote_device *device,
- struct scic_sds_request *io_request)
-{
- scic_sds_port_decrement_request_count(port);
-
- if (port->started_request_count == 0) {
- port_state_machine_change(port,
- SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL);
- }
-
- return SCI_SUCCESS;
-}
-
-static enum sci_status default_port_handler(struct scic_sds_port *sci_port,
- const char *func)
-{
- dev_warn(sciport_to_dev(sci_port),
- "%s: in wrong state: %d\n", func,
- sci_base_state_machine_get_state(&sci_port->state_machine));
- return SCI_FAILURE_INVALID_STATE;
-}
-
-static enum sci_status scic_sds_port_default_start_io_handler(struct scic_sds_port *sci_port,
- struct scic_sds_remote_device *sci_dev,
- struct scic_sds_request *sci_req)
-{
- return default_port_handler(sci_port, __func__);
-}
-
-static enum sci_status scic_sds_port_default_complete_io_handler(struct scic_sds_port *sci_port,
- struct scic_sds_remote_device *sci_dev,
- struct scic_sds_request *sci_req)
-{
- return default_port_handler(sci_port, __func__);
-}
-
-/*
- * ******************************************************************************
- * * PORT STATE PRIVATE METHODS
- * ****************************************************************************** */
-
/**
*
* @sci_port: This is the struct scic_sds_port object to suspend.
writel(pts_control_value, &port->port_task_scheduler_registers->control);
}
-/*
- * ******************************************************************************
- * * PORT READY SUBSTATE METHODS
- * ****************************************************************************** */
-
-/**
- *
- * @object: This is the object which is cast to a struct scic_sds_port object.
- *
- * This method will perform the actions required by the struct scic_sds_port on
- * entering the SCIC_SDS_PORT_READY_SUBSTATE_WAITING. This function checks the
- * port for any ready phys. If there is at least one phy in a ready state then
- * the port transitions to the ready operational substate. none
- */
static void scic_sds_port_ready_substate_waiting_enter(void *object)
{
struct scic_sds_port *sci_port = object;
- scic_sds_port_set_base_state_handlers(
- sci_port, SCIC_SDS_PORT_READY_SUBSTATE_WAITING
- );
-
scic_sds_port_suspend_port_task_scheduler(sci_port);
sci_port->not_ready_reason = SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS;
}
}
-/**
- *
- * @object: This is the object which is cast to a struct scic_sds_port object.
- *
- * This function will perform the actions required by the struct scic_sds_port
- * on entering the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function sets
- * the state handlers for the port object, notifies the SCI User that the port
- * is ready, and resumes port operations. none
- */
static void scic_sds_port_ready_substate_operational_enter(void *object)
{
u32 index;
struct isci_host *ihost = scic_to_ihost(scic);
struct isci_port *iport = sci_port_to_iport(sci_port);
- scic_sds_port_set_base_state_handlers(
- sci_port,
- SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL);
-
isci_port_ready(ihost, iport);
for (index = 0; index < SCI_MAX_PHYS; index++) {
scic_sds_port_invalidate_dummy_remote_node(sci_port);
}
-/*
- * ******************************************************************************
- * * PORT READY CONFIGURING METHODS
- * ****************************************************************************** */
-
-/**
- * scic_sds_port_ready_substate_configuring_enter() -
- * @object: This is the object which is cast to a struct scic_sds_port object.
- *
- * This method will perform the actions required by the struct scic_sds_port on
- * exiting the SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL. This function reports
- * the port not ready and suspends the port task scheduler. none
- */
static void scic_sds_port_ready_substate_configuring_enter(void *object)
{
struct scic_sds_port *sci_port = object;
struct isci_host *ihost = scic_to_ihost(scic);
struct isci_port *iport = sci_port_to_iport(sci_port);
- scic_sds_port_set_base_state_handlers(
- sci_port,
- SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING);
-
if (sci_port->active_phy_mask == 0) {
isci_port_not_ready(ihost, iport);
scic_sds_port_invalidate_dummy_remote_node(sci_port);
}
-/* --------------------------------------------------------------------------- */
-
-/**
- *
- * @port: This is the struct scic_sds_port object on which the io request count will
- * be decremented.
- * @device: This is the struct scic_sds_remote_device object to which the io request
- * is being directed. This parameter is not required to complete this
- * operation.
- * @io_request: This is the request that is being completed on this port
- * object. This parameter is not required to complete this operation.
- *
- * This is a general complete io request handler for the struct scic_sds_port object.
- * enum sci_status SCI_SUCCESS
- */
-static enum sci_status scic_sds_port_general_complete_io_handler(
- struct scic_sds_port *port,
- struct scic_sds_remote_device *device,
- struct scic_sds_request *io_request)
-{
- scic_sds_port_decrement_request_count(port);
-
- return SCI_SUCCESS;
-}
-
-/*
- * This method takes the struct scic_sds_port that is in a stopping state and handles
- * the complete io request. Should the request count reach 0 then the port
- * object will transition to the stopped state. enum sci_status SCI_SUCCESS
- */
-static enum sci_status scic_sds_port_stopping_state_complete_io_handler(
- struct scic_sds_port *sci_port,
- struct scic_sds_remote_device *device,
- struct scic_sds_request *io_request)
-{
- scic_sds_port_decrement_request_count(sci_port);
-
- if (sci_port->started_request_count == 0)
- port_state_machine_change(sci_port,
- SCI_BASE_PORT_STATE_STOPPED);
-
- return SCI_SUCCESS;
-}
-
enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port)
{
struct scic_sds_controller *scic = sci_port->owning_controller;
}
}
-static struct scic_sds_port_state_handler scic_sds_port_state_handler_table[] = {
- [SCI_BASE_PORT_STATE_STOPPED] = {
- .start_io_handler = scic_sds_port_default_start_io_handler,
- .complete_io_handler = scic_sds_port_default_complete_io_handler
- },
- [SCI_BASE_PORT_STATE_STOPPING] = {
- .start_io_handler = scic_sds_port_default_start_io_handler,
- .complete_io_handler = scic_sds_port_stopping_state_complete_io_handler
- },
- [SCI_BASE_PORT_STATE_READY] = {
- .start_io_handler = scic_sds_port_default_start_io_handler,
- .complete_io_handler = scic_sds_port_general_complete_io_handler
- },
- [SCIC_SDS_PORT_READY_SUBSTATE_WAITING] = {
- .start_io_handler = scic_sds_port_ready_waiting_substate_start_io_handler,
- .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler,
- },
- [SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL] = {
- .start_io_handler = scic_sds_port_ready_operational_substate_start_io_handler,
- .complete_io_handler = scic_sds_port_ready_substate_complete_io_handler,
- },
- [SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING] = {
- .start_io_handler = scic_sds_port_default_start_io_handler,
- .complete_io_handler = scic_sds_port_ready_configuring_substate_complete_io_handler
- },
- [SCI_BASE_PORT_STATE_RESETTING] = {
- .start_io_handler = scic_sds_port_default_start_io_handler,
- .complete_io_handler = scic_sds_port_general_complete_io_handler
- },
- [SCI_BASE_PORT_STATE_FAILED] = {
- .start_io_handler = scic_sds_port_default_start_io_handler,
- .complete_io_handler = scic_sds_port_general_complete_io_handler
+enum sci_status scic_sds_port_start_io(struct scic_sds_port *sci_port,
+ struct scic_sds_remote_device *sci_dev,
+ struct scic_sds_request *sci_req)
+{
+ enum scic_sds_port_states state;
+
+ state = sci_port->state_machine.current_state_id;
+ switch (state) {
+ case SCIC_SDS_PORT_READY_SUBSTATE_WAITING:
+ return SCI_FAILURE_INVALID_STATE;
+ case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL:
+ sci_port->started_request_count++;
+ return SCI_SUCCESS;
+ default:
+ dev_warn(sciport_to_dev(sci_port),
+ "%s: in wrong state: %d\n", __func__, state);
+ return SCI_FAILURE_INVALID_STATE;
}
-};
+}
-/*
- * ******************************************************************************
- * * PORT STATE PRIVATE METHODS
- * ****************************************************************************** */
+enum sci_status scic_sds_port_complete_io(struct scic_sds_port *sci_port,
+ struct scic_sds_remote_device *sci_dev,
+ struct scic_sds_request *sci_req)
+{
+ enum scic_sds_port_states state;
+
+ state = sci_port->state_machine.current_state_id;
+ switch (state) {
+ case SCI_BASE_PORT_STATE_STOPPED:
+ dev_warn(sciport_to_dev(sci_port),
+ "%s: in wrong state: %d\n", __func__, state);
+ return SCI_FAILURE_INVALID_STATE;
+ case SCI_BASE_PORT_STATE_STOPPING:
+ scic_sds_port_decrement_request_count(sci_port);
+
+ if (sci_port->started_request_count == 0)
+ port_state_machine_change(sci_port,
+ SCI_BASE_PORT_STATE_STOPPED);
+ break;
+ case SCI_BASE_PORT_STATE_READY:
+ case SCI_BASE_PORT_STATE_RESETTING:
+ case SCI_BASE_PORT_STATE_FAILED:
+ case SCIC_SDS_PORT_READY_SUBSTATE_WAITING:
+ case SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL:
+ scic_sds_port_decrement_request_count(sci_port);
+ break;
+ case SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING:
+ scic_sds_port_decrement_request_count(sci_port);
+ if (sci_port->started_request_count == 0) {
+ port_state_machine_change(sci_port,
+ SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL);
+ }
+ break;
+ }
+ return SCI_SUCCESS;
+}
/**
*
scic_sds_controller_post_request(scic, command);
}
-/*
- * ******************************************************************************
- * * PORT STATE METHODS
- * ****************************************************************************** */
-
-/**
- *
- * @object: This is the object which is cast to a struct scic_sds_port object.
- *
- * This method will perform the actions required by the struct scic_sds_port on
- * entering the SCI_BASE_PORT_STATE_STOPPED. This function sets the stopped
- * state handlers for the struct scic_sds_port object and disables the port task
- * scheduler in the hardware. none
- */
static void scic_sds_port_stopped_state_enter(void *object)
{
struct scic_sds_port *sci_port = object;
- scic_sds_port_set_base_state_handlers(
- sci_port, SCI_BASE_PORT_STATE_STOPPED
- );
-
- if (
- SCI_BASE_PORT_STATE_STOPPING
- == sci_port->state_machine.previous_state_id
- ) {
+ if (sci_port->state_machine.previous_state_id == SCI_BASE_PORT_STATE_STOPPING) {
/*
* If we enter this state becasuse of a request to stop
* the port then we want to disable the hardwares port
}
}
-/**
- *
- * @object: This is the object which is cast to a struct scic_sds_port object.
- *
- * This method will perform the actions required by the struct scic_sds_port on
- * exiting the SCI_BASE_STATE_STOPPED. This function enables the SCU hardware
- * port task scheduler. none
- */
static void scic_sds_port_stopped_state_exit(void *object)
{
struct scic_sds_port *sci_port = object;
scic_sds_port_enable_port_task_scheduler(sci_port);
}
-/**
- * scic_sds_port_ready_state_enter -
- * @object: This is the object which is cast to a struct scic_sds_port object.
- *
- * This method will perform the actions required by the struct scic_sds_port on
- * entering the SCI_BASE_PORT_STATE_READY. This function sets the ready state
- * handlers for the struct scic_sds_port object, reports the port object as
- * not ready and starts the ready substate machine. none
- */
static void scic_sds_port_ready_state_enter(void *object)
{
struct scic_sds_port *sci_port = object;
struct isci_port *iport = sci_port_to_iport(sci_port);
u32 prev_state;
- /* Put the ready state handlers in place though they will not be there long */
- scic_sds_port_set_base_state_handlers(sci_port, SCI_BASE_PORT_STATE_READY);
-
prev_state = sci_port->state_machine.previous_state_id;
if (prev_state == SCI_BASE_PORT_STATE_RESETTING)
isci_port_hard_reset_complete(iport, SCI_SUCCESS);
SCIC_SDS_PORT_READY_SUBSTATE_WAITING);
}
-/**
- *
- * @object: This is the object which is cast to a struct scic_sds_port object.
- *
- * This method will perform the actions required by the struct scic_sds_port on
- * entering the SCI_BASE_PORT_STATE_RESETTING. This function sets the resetting
- * state handlers for the struct scic_sds_port object. none
- */
-static void scic_sds_port_resetting_state_enter(void *object)
-{
- struct scic_sds_port *sci_port = object;
-
- scic_sds_port_set_base_state_handlers(
- sci_port, SCI_BASE_PORT_STATE_RESETTING
- );
-}
-
-/**
- *
- * @object: This is the object which is cast to a struct scic_sds_port object.
- *
- * This function will perform the actions required by the
- * struct scic_sds_port on
- * exiting the SCI_BASE_STATE_RESETTING. This function does nothing. none
- */
-static inline void scic_sds_port_resetting_state_exit(void *object)
+static void scic_sds_port_resetting_state_exit(void *object)
{
struct scic_sds_port *sci_port = object;
isci_timer_stop(sci_port->timer_handle);
}
-/**
- *
- * @object: This is the void object which is cast to a
- * struct scic_sds_port object.
- *
- * This method will perform the actions required by the struct scic_sds_port on
- * entering the SCI_BASE_PORT_STATE_STOPPING. This function sets the stopping
- * state handlers for the struct scic_sds_port object. none
- */
-static void scic_sds_port_stopping_state_enter(void *object)
-{
- struct scic_sds_port *sci_port = object;
-
- scic_sds_port_set_base_state_handlers(
- sci_port, SCI_BASE_PORT_STATE_STOPPING
- );
-}
-
-/**
- *
- * @object: This is the object which is cast to a struct scic_sds_port object.
- *
- * This function will perform the actions required by the
- * struct scic_sds_port on
- * exiting the SCI_BASE_STATE_STOPPING. This function does nothing. none
- */
-static inline void
-scic_sds_port_stopping_state_exit(void *object)
+static void scic_sds_port_stopping_state_exit(void *object)
{
struct scic_sds_port *sci_port = object;
scic_sds_port_destroy_dummy_resources(sci_port);
}
-/**
- *
- * @object: This is the object which is cast to a struct scic_sds_port object.
- *
- * This function will perform the actions required by the
- * struct scic_sds_port on
- * entering the SCI_BASE_PORT_STATE_STOPPING. This function sets the stopping
- * state handlers for the struct scic_sds_port object. none
- */
static void scic_sds_port_failed_state_enter(void *object)
{
struct scic_sds_port *sci_port = object;
struct isci_port *iport = sci_port_to_iport(sci_port);
- scic_sds_port_set_base_state_handlers(sci_port,
- SCI_BASE_PORT_STATE_FAILED);
-
isci_port_hard_reset_complete(iport, SCI_FAILURE_TIMEOUT);
}
.exit_state = scic_sds_port_stopped_state_exit
},
[SCI_BASE_PORT_STATE_STOPPING] = {
- .enter_state = scic_sds_port_stopping_state_enter,
.exit_state = scic_sds_port_stopping_state_exit
},
[SCI_BASE_PORT_STATE_READY] = {
.exit_state = scic_sds_port_ready_substate_configuring_exit
},
[SCI_BASE_PORT_STATE_RESETTING] = {
- .enter_state = scic_sds_port_resetting_state_enter,
.exit_state = scic_sds_port_resetting_state_exit
},
[SCI_BASE_PORT_STATE_FAILED] = {
git.openpandora.org / pandora-kernel.git / commitdiff