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isci: kill some long macros

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Delete some macros that are longer to type than the open coded operation
that they perform.

scic_sds_phy_get_base_state_machine
scic_sds_phy_get_starting_substate_machine
scic_sds_port_get_base_state_machine
scic_sds_port_get_ready_substate_machine
scic_sds_remote_device_get_base_state_machine
scic_sds_remote_device_get_ready_substate_machine
scic_sds_remote_node_context_set_remote_node_index
scic_sds_controller_get_base_state_machine

Also performs some collateral cleanups like killing casts that assume
structure member ordering, and consolidating a lot of duplicated default
handler code (the primary callers of the *_get_base_state_machine macros) via
a helper.

Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2011-03-26 16:30:35 -07:00
parent f942f32ea0
commit 068b2c0363
9 changed files with 397 additions and 1302 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

259
drivers/scsi/isci/core/scic_sds_controller.c
View File

@ -739,9 +739,8 @@ static void scic_sds_controller_transition_to_ready(
* We move into the ready state, because some of the phys/ports
* may be up and operational.
*/
sci_base_state_machine_change_state(
scic_sds_controller_get_base_state_machine(scic),
SCI_BASE_CONTROLLER_STATE_READY);
sci_base_state_machine_change_state(&scic->parent.state_machine,
SCI_BASE_CONTROLLER_STATE_READY);
isci_host_start_complete(ihost, status);
}
@ -751,18 +750,12 @@ void scic_sds_controller_timeout_handler(void *_scic)
{
struct scic_sds_controller *scic = _scic;
struct isci_host *ihost = sci_object_get_association(scic);
enum sci_base_controller_states current_state;
struct sci_base_state_machine *sm = &scic->parent.state_machine;
current_state = sci_base_state_machine_get_state(
scic_sds_controller_get_base_state_machine(scic));
if (current_state == SCI_BASE_CONTROLLER_STATE_STARTING) {
scic_sds_controller_transition_to_ready(
scic, SCI_FAILURE_TIMEOUT);
} else if (current_state == SCI_BASE_CONTROLLER_STATE_STOPPING) {
sci_base_state_machine_change_state(
scic_sds_controller_get_base_state_machine(scic),
SCI_BASE_CONTROLLER_STATE_FAILED);
if (sm->current_state_id == SCI_BASE_CONTROLLER_STATE_STARTING)
scic_sds_controller_transition_to_ready(scic, SCI_FAILURE_TIMEOUT);
else if (sm->current_state_id == SCI_BASE_CONTROLLER_STATE_STOPPING) {
sci_base_state_machine_change_state(sm, SCI_BASE_CONTROLLER_STATE_FAILED);
isci_host_stop_complete(ihost, SCI_FAILURE_TIMEOUT);
} else /* / @todo Now what do we want to do in this case? */
dev_err(scic_to_dev(scic),
@ -1619,16 +1612,15 @@ void scic_sds_controller_error_handler(struct scic_sds_controller *scic)
dev_err(scic_to_dev(scic), "%s: status: %#x\n", __func__,
interrupt_status);
sci_base_state_machine_change_state(
scic_sds_controller_get_base_state_machine(scic),
SCI_BASE_CONTROLLER_STATE_FAILED);
sci_base_state_machine_change_state(&scic->parent.state_machine,
SCI_BASE_CONTROLLER_STATE_FAILED);
return;
}
/*
* If we dont process any completions I am not sure that we want to do this.
* We are in the middle of a hardware fault and should probably be reset. */
/* If we dont process any completions I am not sure that we want to do this.
* We are in the middle of a hardware fault and should probably be reset.
*/
SMU_IMR_WRITE(scic, 0x00000000);
}
@ -1655,12 +1647,8 @@ void scic_sds_controller_link_up(
else
dev_dbg(scic_to_dev(scic),
"%s: SCIC Controller linkup event from phy %d in "
"unexpected state %d\n",
__func__,
sci_phy->phy_index,
sci_base_state_machine_get_state(
scic_sds_controller_get_base_state_machine(
scic)));
"unexpected state %d\n", __func__, sci_phy->phy_index,
state);
}
@ -2125,11 +2113,7 @@ enum sci_status scic_controller_initialize(
else
dev_warn(scic_to_dev(scic),
"%s: SCIC Controller initialize operation requested "
"in invalid state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_controller_get_base_state_machine(
scic)));
"in invalid state %d\n", __func__, state);
return status;
}
@ -2180,11 +2164,7 @@ enum sci_status scic_controller_start(
else
dev_warn(scic_to_dev(scic),
"%s: SCIC Controller start operation requested in "
"invalid state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_controller_get_base_state_machine(
scic)));
"invalid state %d\n", __func__, state);
return status;
}
@ -2207,11 +2187,7 @@ enum sci_status scic_controller_stop(
else
dev_warn(scic_to_dev(scic),
"%s: SCIC Controller stop operation requested in "
"invalid state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_controller_get_base_state_machine(
scic)));
"invalid state %d\n", __func__, state);
return status;
}
@ -2233,11 +2209,7 @@ enum sci_status scic_controller_reset(
else
dev_warn(scic_to_dev(scic),
"%s: SCIC Controller reset operation requested in "
"invalid state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_controller_get_base_state_machine(
scic)));
"invalid state %d\n", __func__, state);
return status;
}
@ -2765,128 +2737,57 @@ struct scic_sds_controller *scic_controller_alloc(struct device *dev)
return devm_kzalloc(dev, sizeof(struct scic_sds_controller), GFP_KERNEL);
}
/*
* *****************************************************************************
* * DEFAULT STATE HANDLERS
* ***************************************************************************** */
static enum sci_status default_controller_handler(struct sci_base_controller *base_scic,
const char *func)
{
struct scic_sds_controller *scic = container_of(base_scic, typeof(*scic), parent);
u32 state = base_scic->state_machine.current_state_id;
dev_warn(scic_to_dev(scic), "%s: invalid state %d\n", func, state);
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @controller: This is struct sci_base_controller object which is cast into a
* struct scic_sds_controller object.
* @remote_device: This is struct sci_base_remote_device which, if it was used, would
* be cast to a struct scic_sds_remote_device.
* @io_request: This is the struct sci_base_request which, if it was used, would be
* cast to a SCIC_SDS_IO_REQUEST.
* @io_tag: This is the IO tag to be assigned to the IO request or
* SCI_CONTROLLER_INVALID_IO_TAG.
*
* This method is called when the struct scic_sds_controller default start io/task
* handler is in place. - Issue a warning message enum sci_status
* SCI_FAILURE_INVALID_STATE
*/
static enum sci_status scic_sds_controller_default_start_operation_handler(
struct sci_base_controller *controller,
struct sci_base_controller *base_scic,
struct sci_base_remote_device *remote_device,
struct sci_base_request *io_request,
u16 io_tag)
{
struct scic_sds_controller *this_controller;
this_controller = (struct scic_sds_controller *)controller;
dev_warn(scic_to_dev(this_controller),
"%s: SCIC Controller requested to start an io/task from "
"invalid state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_controller_get_base_state_machine(
this_controller)));
return SCI_FAILURE_INVALID_STATE;
return default_controller_handler(base_scic, __func__);
}
/**
*
* @controller: This is struct sci_base_controller object which is cast into a
* struct scic_sds_controller object.
* @remote_device: This is struct sci_base_remote_device which, if it was used, would
* be cast to a struct scic_sds_remote_device.
* @io_request: This is the struct sci_base_request which, if it was used, would be
* cast to a SCIC_SDS_IO_REQUEST.
*
* This method is called when the struct scic_sds_controller default request handler
* is in place. - Issue a warning message enum sci_status SCI_FAILURE_INVALID_STATE
*/
static enum sci_status scic_sds_controller_default_request_handler(
struct sci_base_controller *controller,
struct sci_base_controller *base_scic,
struct sci_base_remote_device *remote_device,
struct sci_base_request *io_request)
{
struct scic_sds_controller *this_controller;
this_controller = (struct scic_sds_controller *)controller;
dev_warn(scic_to_dev(this_controller),
"%s: SCIC Controller request operation from invalid state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_controller_get_base_state_machine(
this_controller)));
return SCI_FAILURE_INVALID_STATE;
return default_controller_handler(base_scic, __func__);
}
/*
* *****************************************************************************
* * GENERAL (COMMON) STATE HANDLERS
* ***************************************************************************** */
/**
*
* @controller: The struct sci_base_controller object which is cast into a
* struct scic_sds_controller object.
*
* This method is called when the struct scic_sds_controller is in the ready state
* reset handler is in place. - Transition to
* SCI_BASE_CONTROLLER_STATE_RESETTING enum sci_status SCI_SUCCESS
*/
static enum sci_status scic_sds_controller_general_reset_handler(
struct sci_base_controller *controller)
static enum sci_status scic_sds_controller_general_reset_handler(struct sci_base_controller *base_scic)
{
struct scic_sds_controller *this_controller;
this_controller = (struct scic_sds_controller *)controller;
/*
* The reset operation is not a graceful cleanup just perform the state
* transition. */
sci_base_state_machine_change_state(
scic_sds_controller_get_base_state_machine(this_controller),
SCI_BASE_CONTROLLER_STATE_RESETTING
);
/* The reset operation is not a graceful cleanup just perform the state
* transition.
*/
sci_base_state_machine_change_state(&base_scic->state_machine,
SCI_BASE_CONTROLLER_STATE_RESETTING);
return SCI_SUCCESS;
}
/*
* *****************************************************************************
* * RESET STATE HANDLERS
* ***************************************************************************** */
static enum sci_status scic_sds_controller_reset_state_initialize_handler(struct sci_base_controller *base_scic)
{
struct sci_base_state_machine *sm = &base_scic->state_machine;
enum sci_status result = SCI_SUCCESS;
struct scic_sds_controller *scic;
struct isci_host *ihost;
u32 index;
u32 index, state;
scic = container_of(base_scic, typeof(*scic), parent);
ihost = sci_object_get_association(scic);
sci_base_state_machine_change_state(
scic_sds_controller_get_base_state_machine(scic),
SCI_BASE_CONTROLLER_STATE_INITIALIZING);
sci_base_state_machine_change_state(sm, SCI_BASE_CONTROLLER_STATE_INITIALIZING);
scic->timeout_timer = isci_timer_create(ihost,
scic,
@ -3028,13 +2929,10 @@ static enum sci_status scic_sds_controller_reset_state_initialize_handler(struct
/* Advance the controller state machine */
if (result == SCI_SUCCESS)
sci_base_state_machine_change_state(
scic_sds_controller_get_base_state_machine(scic),
SCI_BASE_CONTROLLER_STATE_INITIALIZED);
state = SCI_BASE_CONTROLLER_STATE_INITIALIZED;
else
sci_base_state_machine_change_state(
scic_sds_controller_get_base_state_machine(scic),
SCI_BASE_CONTROLLER_STATE_FAILED);
state = SCI_BASE_CONTROLLER_STATE_FAILED;
sci_base_state_machine_change_state(sm, state);
return result;
}
@ -3065,14 +2963,14 @@ static enum sci_status scic_sds_controller_reset_state_initialize_handler(struct
* descriptor fields is invalid.
*/
static enum sci_status scic_sds_controller_initialized_state_start_handler(
struct sci_base_controller *controller,
struct sci_base_controller *base_scic,
u32 timeout)
{
u16 index;
enum sci_status result;
struct scic_sds_controller *scic;
scic = (struct scic_sds_controller *)controller;
scic = container_of(base_scic, typeof(*scic), parent);
/*
* Make sure that the SCI User filled in the memory descriptor
@ -3135,9 +3033,8 @@ static enum sci_status scic_sds_controller_initialized_state_start_handler(
isci_timer_start(scic->timeout_timer, timeout);
sci_base_state_machine_change_state(
scic_sds_controller_get_base_state_machine(scic),
SCI_BASE_CONTROLLER_STATE_STARTING);
sci_base_state_machine_change_state(&base_scic->state_machine,
SCI_BASE_CONTROLLER_STATE_STARTING);
}
return result;
@ -3197,33 +3094,15 @@ static void scic_sds_controller_starting_state_link_down_handler(
/* scic_sds_port_link_down(port, phy); */
}
/*
* *****************************************************************************
* * READY STATE HANDLERS
* ***************************************************************************** */
/**
*
* @controller: The struct sci_base_controller object which is cast into a
* struct scic_sds_controller object.
* @timeout: The timeout for when the stop operation should report a failure.
*
* This method is called when the struct scic_sds_controller is in the ready state
* stop handler is called. - Start the timeout timer - Transition to
* SCI_BASE_CONTROLLER_STATE_STOPPING. enum sci_status SCI_SUCCESS
*/
static enum sci_status scic_sds_controller_ready_state_stop_handler(
struct sci_base_controller *controller,
u32 timeout)
static enum sci_status scic_sds_controller_ready_state_stop_handler(struct sci_base_controller *base_scic,
u32 timeout)
{
struct scic_sds_controller *scic =
(struct scic_sds_controller *)controller;
struct scic_sds_controller *scic;
scic = container_of(base_scic, typeof(*scic), parent);
isci_timer_start(scic->timeout_timer, timeout);
sci_base_state_machine_change_state(
scic_sds_controller_get_base_state_machine(scic),
SCI_BASE_CONTROLLER_STATE_STOPPING);
sci_base_state_machine_change_state(&base_scic->state_machine,
SCI_BASE_CONTROLLER_STATE_STOPPING);
return SCI_SUCCESS;
}
@ -3749,33 +3628,16 @@ static inline void scic_sds_controller_stopping_state_exit(
isci_timer_stop(scic->timeout_timer);
}
/**
*
* @object: This is the struct sci_base_object which is cast to a struct scic_sds_controller
* object.
*
* This method implements the actions taken by the struct scic_sds_controller on entry
* to the SCI_BASE_CONTROLLER_STATE_RESETTING. - Set the state handlers to the
* controllers resetting state. - Write to the SCU hardware reset register to
* force a reset - Transition to the SCI_BASE_CONTROLLER_STATE_RESET none
*/
static void scic_sds_controller_resetting_state_enter(
struct sci_base_object *object)
static void scic_sds_controller_resetting_state_enter(struct sci_base_object *object)
{
struct scic_sds_controller *this_controller;
struct scic_sds_controller *scic;
this_controller = (struct scic_sds_controller *)object;
scic_sds_controller_reset_hardware(this_controller);
sci_base_state_machine_change_state(
scic_sds_controller_get_base_state_machine(this_controller),
SCI_BASE_CONTROLLER_STATE_RESET
);
scic = container_of(object, typeof(*scic), parent.parent);
scic_sds_controller_reset_hardware(scic);
sci_base_state_machine_change_state(&scic->parent.state_machine,
SCI_BASE_CONTROLLER_STATE_RESET);
}
/* --------------------------------------------------------------------------- */
const struct sci_base_state scic_sds_controller_state_table[] = {
[SCI_BASE_CONTROLLER_STATE_INITIAL] = {
.enter_state = scic_sds_controller_initial_state_enter,
@ -3800,4 +3662,3 @@ const struct sci_base_state scic_sds_controller_state_table[] = {
[SCI_BASE_CONTROLLER_STATE_STOPPED] = {},
[SCI_BASE_CONTROLLER_STATE_FAILED] = {}
};

9
drivers/scsi/isci/core/scic_sds_controller.h
View File

@ -420,15 +420,6 @@ extern const struct sci_base_state scic_sds_controller_state_table[];
} \
}
/**
* scic_sds_controller_get_base_state_machine() -
*
* This is a helper macro that gets the base state machine for the controller
* object
*/
#define scic_sds_controller_get_base_state_machine(this_controller) \
(&(this_controller)->parent.state_machine)
/**
* scic_sds_controller_get_port_configuration_agent() -
*

400
drivers/scsi/isci/core/scic_sds_phy.c
View File

@ -246,7 +246,7 @@ scic_sds_phy_link_layer_initialization(struct scic_sds_phy *sci_phy,
0x1F4);
/* We can exit the initial state to the stopped state */
sci_base_state_machine_change_state(scic_sds_phy_get_base_state_machine(sci_phy),
sci_base_state_machine_change_state(&sci_phy->parent.state_machine,
SCI_BASE_PHY_STATE_STOPPED);
return SCI_SUCCESS;
@ -267,13 +267,10 @@ void scic_sds_phy_sata_timeout(void *phy)
__func__,
sci_phy);
sci_base_state_machine_stop(
scic_sds_phy_get_starting_substate_machine(sci_phy));
sci_base_state_machine_stop(&sci_phy->starting_substate_machine);
sci_base_state_machine_change_state(
scic_sds_phy_get_base_state_machine(sci_phy),
SCI_BASE_PHY_STATE_STARTING
);
sci_base_state_machine_change_state(&sci_phy->parent.state_machine,
SCI_BASE_PHY_STATE_STARTING);
}
/**
@ -390,9 +387,8 @@ enum sci_status scic_sds_phy_initialize(
/*
* There is nothing that needs to be done in this state just
* transition to the stopped state. */
sci_base_state_machine_change_state(
scic_sds_phy_get_base_state_machine(sci_phy),
SCI_BASE_PHY_STATE_STOPPED);
sci_base_state_machine_change_state(&sci_phy->parent.state_machine,
SCI_BASE_PHY_STATE_STOPPED);
return SCI_SUCCESS;
}
@ -716,9 +712,9 @@ static void scic_sds_phy_start_sata_link_training(
}
/**
* This method performs processing common to all protocols upon completion of
* link training.
* @this_phy: This parameter specifies the phy object for which link training
* scic_sds_phy_complete_link_training - perform processing common to
* all protocols upon completion of link training.
* @sci_phy: This parameter specifies the phy object for which link training
* has completed.
* @max_link_rate: This parameter specifies the maximum link rate to be
* associated with this phy.
@ -727,37 +723,25 @@ static void scic_sds_phy_start_sata_link_training(
*
*/
static void scic_sds_phy_complete_link_training(
struct scic_sds_phy *this_phy,
struct scic_sds_phy *sci_phy,
enum sci_sas_link_rate max_link_rate,
u32 next_state)
{
this_phy->max_negotiated_speed = max_link_rate;
sci_phy->max_negotiated_speed = max_link_rate;
sci_base_state_machine_change_state(
scic_sds_phy_get_starting_substate_machine(this_phy), next_state
);
sci_base_state_machine_change_state(&sci_phy->starting_substate_machine,
next_state);
}
/**
*
* @this_phy: The struct scic_sds_phy object to restart.
*
* This method restarts the struct scic_sds_phy objects base state machine in the
* starting state from any starting substate. none
*/
static void scic_sds_phy_restart_starting_state(
struct scic_sds_phy *this_phy)
struct scic_sds_phy *sci_phy)
{
/* Stop the current substate machine */
sci_base_state_machine_stop(
scic_sds_phy_get_starting_substate_machine(this_phy)
);
sci_base_state_machine_stop(&sci_phy->starting_substate_machine);
/* Re-enter the base state machine starting state */
sci_base_state_machine_change_state(
scic_sds_phy_get_base_state_machine(this_phy),
SCI_BASE_PHY_STATE_STARTING
);
sci_base_state_machine_change_state(&sci_phy->parent.state_machine,
SCI_BASE_PHY_STATE_STARTING);
}
/* ****************************************************************************
@ -1041,7 +1025,7 @@ static enum sci_status scic_sds_phy_starting_substate_await_sata_power_event_han
}
/**
*
* scic_sds_phy_starting_substate_await_sata_phy_event_handler -
* @phy: This struct scic_sds_phy object which has received an event.
* @event_code: This is the event code which the phy object is to decode.
*
@ -1054,42 +1038,39 @@ static enum sci_status scic_sds_phy_starting_substate_await_sata_power_event_han
* failure event SCI_FAILURE on any unexpected event notifation
*/
static enum sci_status scic_sds_phy_starting_substate_await_sata_phy_event_handler(
struct scic_sds_phy *this_phy,
u32 event_code)
struct scic_sds_phy *sci_phy, u32 event_code)
{
u32 result = SCI_SUCCESS;
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_LINK_FAILURE:
/* Link failure change state back to the starting state */
scic_sds_phy_restart_starting_state(this_phy);
scic_sds_phy_restart_starting_state(sci_phy);
break;
case SCU_EVENT_SATA_SPINUP_HOLD:
/*
* These events might be received since we dont know how many may be in
* the completion queue while waiting for power */
/* These events might be received since we dont know how many may be in
* the completion queue while waiting for power
*/
break;
case SCU_EVENT_SATA_PHY_DETECTED:
this_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA;
sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA;
/* We have received the SATA PHY notification change state */
sci_base_state_machine_change_state(
scic_sds_phy_get_starting_substate_machine(this_phy),
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN
);
sci_base_state_machine_change_state(&sci_phy->starting_substate_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN);
break;
case SCU_EVENT_SAS_PHY_DETECTED:
/*
* There has been a change in the phy type before OOB/SN for the
* SATA finished start down the SAS link traning path. */
scic_sds_phy_start_sas_link_training(this_phy);
/* There has been a change in the phy type before OOB/SN for the
* SATA finished start down the SAS link traning path.
*/
scic_sds_phy_start_sas_link_training(sci_phy);
break;
default:
dev_warn(sciphy_to_dev(this_phy),
dev_warn(sciphy_to_dev(sci_phy),
"%s: PHY starting substate machine received "
"unexpected event_code %x\n",
__func__,
@ -1182,7 +1163,7 @@ static enum sci_status scic_sds_phy_starting_substate_await_sata_speed_event_han
}
/**
*
* scic_sds_phy_starting_substate_await_sig_fis_event_handler -
* @phy: This struct scic_sds_phy object which has received an event.
* @event_code: This is the event code which the phy object is to decode.
*
@ -1196,27 +1177,24 @@ static enum sci_status scic_sds_phy_starting_substate_await_sata_speed_event_han
* unexpected event notifation
*/
static enum sci_status scic_sds_phy_starting_substate_await_sig_fis_event_handler(
struct scic_sds_phy *this_phy,
u32 event_code)
struct scic_sds_phy *sci_phy, u32 event_code)
{
u32 result = SCI_SUCCESS;
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_SATA_PHY_DETECTED:
/* Backup the state machine */
sci_base_state_machine_change_state(
scic_sds_phy_get_starting_substate_machine(this_phy),
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN
);
sci_base_state_machine_change_state(&sci_phy->starting_substate_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN);
break;
case SCU_EVENT_LINK_FAILURE:
/* Link failure change state back to the starting state */
scic_sds_phy_restart_starting_state(this_phy);
scic_sds_phy_restart_starting_state(sci_phy);
break;
default:
dev_warn(sciphy_to_dev(this_phy),
dev_warn(sciphy_to_dev(sci_phy),
"%s: PHY starting substate machine received "
"unexpected event_code %x\n",
__func__,
@ -1249,15 +1227,14 @@ static enum sci_status scic_sds_phy_starting_substate_await_sig_fis_event_handle
* unsolicted frame - release frame buffer enum sci_status SCI_SUCCESS
*/
static enum sci_status scic_sds_phy_starting_substate_await_iaf_uf_frame_handler(
struct scic_sds_phy *this_phy,
u32 frame_index)
struct scic_sds_phy *sci_phy, u32 frame_index)
{
enum sci_status result;
u32 *frame_words;
struct sci_sas_identify_address_frame *identify_frame;
result = scic_sds_unsolicited_frame_control_get_header(
&(scic_sds_phy_get_controller(this_phy)->uf_control),
&(scic_sds_phy_get_controller(sci_phy)->uf_control),
frame_index,
(void **)&frame_words);
@ -1269,49 +1246,43 @@ static enum sci_status scic_sds_phy_starting_substate_await_iaf_uf_frame_handler
identify_frame = (struct sci_sas_identify_address_frame *)frame_words;
if (identify_frame->address_frame_type == 0) {
/*
* Byte swap the rest of the frame so we can make
* a copy of the buffer */
u32 state;
/* Byte swap the rest of the frame so we can make
* a copy of the buffer
*/
frame_words[1] = SCIC_SWAP_DWORD(frame_words[1]);
frame_words[2] = SCIC_SWAP_DWORD(frame_words[2]);
frame_words[3] = SCIC_SWAP_DWORD(frame_words[3]);
frame_words[4] = SCIC_SWAP_DWORD(frame_words[4]);
frame_words[5] = SCIC_SWAP_DWORD(frame_words[5]);
memcpy(
&this_phy->phy_type.sas.identify_address_frame_buffer,
memcpy(&sci_phy->phy_type.sas.identify_address_frame_buffer,
identify_frame,
sizeof(struct sci_sas_identify_address_frame)
);
sizeof(struct sci_sas_identify_address_frame));
if (identify_frame->protocols.u.bits.smp_target) {
/*
* We got the IAF for an expander PHY go to the final state since
* there are no power requirements for expander phys. */
sci_base_state_machine_change_state(
scic_sds_phy_get_starting_substate_machine(this_phy),
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL
);
/* We got the IAF for an expander PHY go to the final state since
* there are no power requirements for expander phys.
*/
state = SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL;
} else {
/* We got the IAF we can now go to the await spinup semaphore state */
sci_base_state_machine_change_state(
scic_sds_phy_get_starting_substate_machine(this_phy),
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER
);
state = SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER;
}
sci_base_state_machine_change_state(&sci_phy->starting_substate_machine,
state);
result = SCI_SUCCESS;
} else
dev_warn(sciphy_to_dev(this_phy),
dev_warn(sciphy_to_dev(sci_phy),
"%s: PHY starting substate machine received "
"unexpected frame id %x\n",
__func__,
frame_index);
/* Regardless of the result release this frame since we are done with it */
scic_sds_controller_release_frame(
scic_sds_phy_get_controller(this_phy), frame_index
);
scic_sds_controller_release_frame(scic_sds_phy_get_controller(sci_phy),
frame_index);
return result;
}
@ -1331,7 +1302,7 @@ static enum sci_status scic_sds_phy_starting_substate_await_iaf_uf_frame_handler
* data
*/
static enum sci_status scic_sds_phy_starting_substate_await_sig_fis_frame_handler(
struct scic_sds_phy *this_phy,
struct scic_sds_phy *sci_phy,
u32 frame_index)
{
enum sci_status result;
@ -1340,7 +1311,7 @@ static enum sci_status scic_sds_phy_starting_substate_await_sig_fis_frame_handle
u32 *fis_frame_data;
result = scic_sds_unsolicited_frame_control_get_header(
&(scic_sds_phy_get_controller(this_phy)->uf_control),
&(scic_sds_phy_get_controller(sci_phy)->uf_control),
frame_index,
(void **)&frame_words);
@ -1350,40 +1321,33 @@ static enum sci_status scic_sds_phy_starting_substate_await_sig_fis_frame_handle
fis_frame_header = (struct sata_fis_header *)frame_words;
if (
(fis_frame_header->fis_type == SATA_FIS_TYPE_REGD2H)
&& !(fis_frame_header->status & ATA_STATUS_REG_BSY_BIT)
) {
if ((fis_frame_header->fis_type == SATA_FIS_TYPE_REGD2H) &&
!(fis_frame_header->status & ATA_STATUS_REG_BSY_BIT)) {
scic_sds_unsolicited_frame_control_get_buffer(
&(scic_sds_phy_get_controller(this_phy)->uf_control),
&(scic_sds_phy_get_controller(sci_phy)->uf_control),
frame_index,
(void **)&fis_frame_data
);
(void **)&fis_frame_data);
scic_sds_controller_copy_sata_response(
&this_phy->phy_type.sata.signature_fis_buffer,
&sci_phy->phy_type.sata.signature_fis_buffer,
frame_words,
fis_frame_data
);
fis_frame_data);
/* We got the IAF we can now go to the await spinup semaphore state */
sci_base_state_machine_change_state(
scic_sds_phy_get_starting_substate_machine(this_phy),
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL
);
sci_base_state_machine_change_state(&sci_phy->starting_substate_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL);
result = SCI_SUCCESS;
} else
dev_warn(sciphy_to_dev(this_phy),
dev_warn(sciphy_to_dev(sci_phy),
"%s: PHY starting substate machine received "
"unexpected frame id %x\n",
__func__,
frame_index);
/* Regardless of the result release this frame since we are done with it */
scic_sds_controller_release_frame(
scic_sds_phy_get_controller(this_phy), frame_index
);
scic_sds_controller_release_frame(scic_sds_phy_get_controller(sci_phy),
frame_index);
return result;
}
@ -1394,7 +1358,7 @@ static enum sci_status scic_sds_phy_starting_substate_await_sig_fis_frame_handle
* ***************************************************************************** */
/**
*
* scic_sds_phy_starting_substate_await_sas_power_consume_power_handler -
* @phy: This is the struct sci_base_phy object which is cast into a struct scic_sds_phy
* object.
*
@ -1404,19 +1368,17 @@ static enum sci_status scic_sds_phy_starting_substate_await_sig_fis_frame_handle
* SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL. enum sci_status SCI_SUCCESS
*/
static enum sci_status scic_sds_phy_starting_substate_await_sas_power_consume_power_handler(
struct scic_sds_phy *this_phy)
struct scic_sds_phy *sci_phy)
{
u32 enable_spinup;
enable_spinup = SCU_SAS_ENSPINUP_READ(this_phy);
enable_spinup = SCU_SAS_ENSPINUP_READ(sci_phy);
enable_spinup |= SCU_ENSPINUP_GEN_BIT(ENABLE);
SCU_SAS_ENSPINUP_WRITE(this_phy, enable_spinup);
SCU_SAS_ENSPINUP_WRITE(sci_phy, enable_spinup);
/* Change state to the final state this substate machine has run to completion */
sci_base_state_machine_change_state(
scic_sds_phy_get_starting_substate_machine(this_phy),
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL
);
sci_base_state_machine_change_state(&sci_phy->starting_substate_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL);
return SCI_SUCCESS;
}
@ -1431,27 +1393,25 @@ static enum sci_status scic_sds_phy_starting_substate_await_sas_power_consume_po
* SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN. enum sci_status SCI_SUCCESS
*/
static enum sci_status scic_sds_phy_starting_substate_await_sata_power_consume_power_handler(
struct scic_sds_phy *this_phy)
struct scic_sds_phy *sci_phy)
{
u32 scu_sas_pcfg_value;
/* Release the spinup hold state and reset the OOB state machine */
scu_sas_pcfg_value = SCU_SAS_PCFG_READ(this_phy);
scu_sas_pcfg_value = SCU_SAS_PCFG_READ(sci_phy);
scu_sas_pcfg_value &=
~(SCU_SAS_PCFG_GEN_BIT(SATA_SPINUP_HOLD) | SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE));
scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(OOB_RESET);
SCU_SAS_PCFG_WRITE(this_phy, scu_sas_pcfg_value);
SCU_SAS_PCFG_WRITE(sci_phy, scu_sas_pcfg_value);
/* Now restart the OOB operation */
scu_sas_pcfg_value &= ~SCU_SAS_PCFG_GEN_BIT(OOB_RESET);
scu_sas_pcfg_value |= SCU_SAS_PCFG_GEN_BIT(OOB_ENABLE);
SCU_SAS_PCFG_WRITE(this_phy, scu_sas_pcfg_value);
SCU_SAS_PCFG_WRITE(sci_phy, scu_sas_pcfg_value);
/* Change state to the final state this substate machine has run to completion */
sci_base_state_machine_change_state(
scic_sds_phy_get_starting_substate_machine(this_phy),
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN
);
sci_base_state_machine_change_state(&sci_phy->starting_substate_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN);
return SCI_SUCCESS;
}
@ -1566,7 +1526,7 @@ const struct scic_sds_phy_state_handler scic_sds_phy_starting_substate_handler_t
* **************************************************************************** */
/**
*
* scic_sds_phy_starting_initial_substate_enter -
* @object: This is the struct sci_base_object which is cast to a struct scic_sds_phy object.
*
* This method will perform the actions required by the struct scic_sds_phy on
@ -1574,21 +1534,18 @@ const struct scic_sds_phy_state_handler scic_sds_phy_starting_substate_handler_t
* handlers are put in place for the struct scic_sds_phy object. - The state is
* changed to the wait phy type event notification. none
*/
static void scic_sds_phy_starting_initial_substate_enter(
struct sci_base_object *object)
static void scic_sds_phy_starting_initial_substate_enter(struct sci_base_object *object)
{
struct scic_sds_phy *this_phy;
struct scic_sds_phy *sci_phy;
this_phy = (struct scic_sds_phy *)object;
sci_phy = (struct scic_sds_phy *)object;
scic_sds_phy_set_starting_substate_handlers(
this_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL);
sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL);
/* This is just an temporary state go off to the starting state */
sci_base_state_machine_change_state(
scic_sds_phy_get_starting_substate_machine(this_phy),
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN
);
sci_base_state_machine_change_state(&sci_phy->starting_substate_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN);
}
/**
@ -1892,23 +1849,20 @@ static inline void scic_sds_phy_starting_await_sig_fis_uf_substate_exit(
* object state handlers for this state. - Change base state machine to the
* ready state. none
*/
static void scic_sds_phy_starting_final_substate_enter(
struct sci_base_object *object)
static void scic_sds_phy_starting_final_substate_enter(struct sci_base_object *object)
{
struct scic_sds_phy *this_phy;
struct scic_sds_phy *sci_phy;
this_phy = (struct scic_sds_phy *)object;
sci_phy = container_of(object, typeof(*sci_phy), parent.parent);
scic_sds_phy_set_starting_substate_handlers(
this_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL
);
scic_sds_phy_set_starting_substate_handlers(sci_phy,
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL);
/*
* State machine has run to completion so exit out and change
* the base state machine to the ready state */
sci_base_state_machine_change_state(
scic_sds_phy_get_base_state_machine(this_phy),
SCI_BASE_PHY_STATE_READY);
/* State machine has run to completion so exit out and change
* the base state machine to the ready state
*/
sci_base_state_machine_change_state(&sci_phy->parent.state_machine,
SCI_BASE_PHY_STATE_READY);
}
/* --------------------------------------------------------------------------- */
@ -2150,153 +2104,85 @@ enum sci_status scic_sds_phy_default_consume_power_handler(
* attempts to start it. - The phy state machine is transitioned to the
* SCI_BASE_PHY_STATE_STARTING. enum sci_status SCI_SUCCESS
*/
static enum sci_status scic_sds_phy_stopped_state_start_handler(
struct sci_base_phy *phy)
static enum sci_status scic_sds_phy_stopped_state_start_handler(struct sci_base_phy *base_phy)
{
struct scic_sds_phy *sci_phy = (struct scic_sds_phy *)phy;
struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy);
struct isci_host *ihost = sci_object_get_association(scic);
struct isci_host *ihost;
struct scic_sds_phy *sci_phy;
struct scic_sds_controller *scic;
sci_phy = container_of(base_phy, typeof(*sci_phy), parent);
scic = scic_sds_phy_get_controller(sci_phy),
ihost = sci_object_get_association(scic);
/* Create the SIGNATURE FIS Timeout timer for this phy */
sci_phy->sata_timeout_timer =
isci_timer_create(
ihost,
sci_phy,
scic_sds_phy_sata_timeout);
sci_phy->sata_timeout_timer = isci_timer_create(ihost, sci_phy,
scic_sds_phy_sata_timeout);
if (sci_phy->sata_timeout_timer != NULL) {
sci_base_state_machine_change_state(
scic_sds_phy_get_base_state_machine(sci_phy),
SCI_BASE_PHY_STATE_STARTING);
}
if (sci_phy->sata_timeout_timer)
sci_base_state_machine_change_state(&sci_phy->parent.state_machine,
SCI_BASE_PHY_STATE_STARTING);
return SCI_SUCCESS;
}
/**
*
* @phy: This is the struct sci_base_phy object which is cast into a struct scic_sds_phy
* object.
*
* This method takes the struct scic_sds_phy from a stopped state and destroys it. -
* This function takes no action. Shouldnt this function transition the
* struct sci_base_phy::state_machine to the SCI_BASE_PHY_STATE_FINAL? enum sci_status
* SCI_SUCCESS
*/
static enum sci_status scic_sds_phy_stopped_state_destroy_handler(
struct sci_base_phy *phy)
static enum sci_status scic_sds_phy_stopped_state_destroy_handler(struct sci_base_phy *base_phy)
{
struct scic_sds_phy *this_phy;
this_phy = (struct scic_sds_phy *)phy;
/* @todo what do we actually need to do here? */
return SCI_SUCCESS;
}
/*
* ******************************************************************************
* * PHY STARTING STATE HANDLERS
* ****************************************************************************** */
/* All of these state handlers are mapped to the starting sub-state machine */
/*
* ******************************************************************************
* * PHY READY STATE HANDLERS
* ****************************************************************************** */
/**
*
* @phy: This is the struct sci_base_phy object which is cast into a struct scic_sds_phy
* object.
*
* This method takes the struct scic_sds_phy from a ready state and attempts to stop
* it. - The phy state machine is transitioned to the
* SCI_BASE_PHY_STATE_STOPPED. enum sci_status SCI_SUCCESS
*/
static enum sci_status scic_sds_phy_ready_state_stop_handler(
struct sci_base_phy *phy)
static enum sci_status scic_sds_phy_ready_state_stop_handler(struct sci_base_phy *base_phy)
{
struct scic_sds_phy *this_phy;
this_phy = (struct scic_sds_phy *)phy;
sci_base_state_machine_change_state(
scic_sds_phy_get_base_state_machine(this_phy),
SCI_BASE_PHY_STATE_STOPPED
);
sci_base_state_machine_change_state(&base_phy->state_machine,
SCI_BASE_PHY_STATE_STOPPED);
return SCI_SUCCESS;
}
/**
*
* @phy: This is the struct sci_base_phy object which is cast into a struct scic_sds_phy
* object.
*
* This method takes the struct scic_sds_phy from a ready state and attempts to reset
* it. - The phy state machine is transitioned to the
* SCI_BASE_PHY_STATE_STARTING. enum sci_status SCI_SUCCESS
*/
static enum sci_status scic_sds_phy_ready_state_reset_handler(
struct sci_base_phy *phy)
static enum sci_status scic_sds_phy_ready_state_reset_handler(struct sci_base_phy *base_phy)
{
struct scic_sds_phy *this_phy;
this_phy = (struct scic_sds_phy *)phy;
sci_base_state_machine_change_state(
scic_sds_phy_get_base_state_machine(this_phy),
SCI_BASE_PHY_STATE_RESETTING
);
sci_base_state_machine_change_state(&base_phy->state_machine,
SCI_BASE_PHY_STATE_RESETTING);
return SCI_SUCCESS;
}
/**
*
* scic_sds_phy_ready_state_event_handler -
* @phy: This is the struct scic_sds_phy object which has received the event.
*
* This method request the struct scic_sds_phy handle the received event. The only
* event that we are interested in while in the ready state is the link failure
* event. - decoded event is a link failure - transition the struct scic_sds_phy back
* to the SCI_BASE_PHY_STATE_STARTING state. - any other event recived will
* to the SCI_BASE_PHY_STATE_STARTING state. - any other event received will
* report a warning message enum sci_status SCI_SUCCESS if the event received is a
* link failure SCI_FAILURE_INVALID_STATE for any other event received.
*/
static enum sci_status scic_sds_phy_ready_state_event_handler(
struct scic_sds_phy *this_phy,
u32 event_code)
static enum sci_status scic_sds_phy_ready_state_event_handler(struct scic_sds_phy *sci_phy,
u32 event_code)
{
enum sci_status result = SCI_FAILURE;
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_LINK_FAILURE:
/* Link failure change state back to the starting state */
sci_base_state_machine_change_state(
scic_sds_phy_get_base_state_machine(this_phy),
SCI_BASE_PHY_STATE_STARTING
);
sci_base_state_machine_change_state(&sci_phy->parent.state_machine,
SCI_BASE_PHY_STATE_STARTING);
result = SCI_SUCCESS;
break;
case SCU_EVENT_BROADCAST_CHANGE:
/* Broadcast change received. Notify the port. */
if (scic_sds_phy_get_port(this_phy) != NULL)
scic_sds_port_broadcast_change_received(this_phy->owning_port, this_phy);
if (scic_sds_phy_get_port(sci_phy) != NULL)
scic_sds_port_broadcast_change_received(sci_phy->owning_port, sci_phy);
else
this_phy->bcn_received_while_port_unassigned = true;
sci_phy->bcn_received_while_port_unassigned = true;
break;
default:
dev_warn(sciphy_to_dev(this_phy),
dev_warn(sciphy_to_dev(sci_phy),
"%sP SCIC PHY 0x%p ready state machine received "
"unexpected event_code %x\n",
__func__,
this_phy,
event_code);
__func__, sci_phy, event_code);
result = SCI_FAILURE_INVALID_STATE;
break;
@ -2305,40 +2191,24 @@ static enum sci_status scic_sds_phy_ready_state_event_handler(
return result;
}
/* --------------------------------------------------------------------------- */
/**
*
* @this_phy: This is the struct scic_sds_phy object which is receiving the event.
* @event_code: This is the event code to be processed.
*
* This is the resetting state event handler. enum sci_status
* SCI_FAILURE_INVALID_STATE
*/
static enum sci_status scic_sds_phy_resetting_state_event_handler(
struct scic_sds_phy *this_phy,
u32 event_code)
static enum sci_status scic_sds_phy_resetting_state_event_handler(struct scic_sds_phy *sci_phy,
u32 event_code)
{
enum sci_status result = SCI_FAILURE;
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_HARD_RESET_TRANSMITTED:
/* Link failure change state back to the starting state */
sci_base_state_machine_change_state(
scic_sds_phy_get_base_state_machine(this_phy),
SCI_BASE_PHY_STATE_STARTING
);
sci_base_state_machine_change_state(&sci_phy->parent.state_machine,
SCI_BASE_PHY_STATE_STARTING);
result = SCI_SUCCESS;
break;
default:
dev_warn(sciphy_to_dev(this_phy),
dev_warn(sciphy_to_dev(sci_phy),
"%s: SCIC PHY 0x%p resetting state machine received "
"unexpected event_code %x\n",
__func__,
this_phy,
event_code);
__func__, sci_phy, event_code);
result = SCI_FAILURE_INVALID_STATE;
break;

48
drivers/scsi/isci/core/scic_sds_phy.h
View File

@ -316,24 +316,6 @@ extern const struct scic_sds_phy_state_handler scic_sds_phy_starting_substate_ha
#define scic_sds_phy_get_controller(phy) \
(scic_sds_port_get_controller((phy)->owning_port))
/**
* scic_sds_phy_get_base_state_machine() - This macro returns the state machine
* for the base phy
*
*
*/
#define scic_sds_phy_get_base_state_machine(phy) \
(&(phy)->parent.state_machine)
/**
* scic_sds_phy_get_starting_substate_machine() - This macro returns the
* starting substate machine for this phy
*
*
*/
#define scic_sds_phy_get_starting_substate_machine(phy) \
(&(phy)->starting_substate_machine)
/**
* scic_sds_phy_set_state_handlers() - This macro sets the state handlers for
* this phy object
@ -354,27 +336,6 @@ extern const struct scic_sds_phy_state_handler scic_sds_phy_starting_substate_ha
&scic_sds_phy_state_handler_table[(state_id)] \
)
/**
* scic_sds_phy_is_ready() -
*
* This macro returns true if the current base state for this phy is
* SCI_BASE_PHY_STATE_READY
*/
#define scic_sds_phy_is_ready(phy) \
(\
SCI_BASE_PHY_STATE_READY \
== sci_base_state_machine_get_state(\
scic_sds_phy_get_base_state_machine(phy) \
) \
)
/* --------------------------------------------------------------------------- */
/* --------------------------------------------------------------------------- */
void scic_sds_phy_construct(
struct scic_sds_phy *this_phy,
struct scic_sds_port *owning_port,
@ -404,8 +365,6 @@ enum sci_status scic_sds_phy_reset(
void scic_sds_phy_sata_timeout(
void *cookie);
/* --------------------------------------------------------------------------- */
void scic_sds_phy_suspend(
struct scic_sds_phy *this_phy);
@ -416,8 +375,6 @@ void scic_sds_phy_setup_transport(
struct scic_sds_phy *this_phy,
u32 device_id);
/* --------------------------------------------------------------------------- */
enum sci_status scic_sds_phy_event_handler(
struct scic_sds_phy *this_phy,
u32 event_code);
@ -445,11 +402,6 @@ void scic_sds_phy_get_attached_phy_protocols(
struct scic_sds_phy *this_phy,
struct sci_sas_identify_address_frame_protocols *protocols);
/*
* ****************************************************************************-
* * SCIC SDS PHY Handler Methods
* ****************************************************************************- */
enum sci_status scic_sds_phy_default_start_handler(
struct sci_base_phy *phy);

440
drivers/scsi/isci/core/scic_sds_port.c
View File

@ -576,12 +576,10 @@ void scic_sds_port_construct(struct scic_sds_port *sci_port, u8 port_index,
sci_base_port_construct(&sci_port->parent, scic_sds_port_state_table);
sci_base_state_machine_construct(
scic_sds_port_get_ready_substate_machine(sci_port),
&sci_port->parent.parent,
scic_sds_port_ready_substate_table,
SCIC_SDS_PORT_READY_SUBSTATE_WAITING
);
sci_base_state_machine_construct(&sci_port->ready_substate_machine,
&sci_port->parent.parent,
scic_sds_port_ready_substate_table,
SCIC_SDS_PORT_READY_SUBSTATE_WAITING);
sci_port->logical_port_index = SCIC_SDS_DUMMY_PORT;
sci_port->physical_port_index = port_index;
@ -1339,9 +1337,9 @@ static void scic_sds_port_ready_operational_substate_link_up_handler(
/**
* scic_sds_port_ready_operational_substate_link_down_handler() -
* @this_port: This is the struct scic_sds_port object that which has a phy that has
* @sci_port: This is the struct scic_sds_port object that which has a phy that has
* gone link down.
* @the_phy: This is the struct scic_sds_phy object that has gone link down.
* @sci_phy: This is the struct scic_sds_phy object that has gone link down.
*
* This method is the ready operational substate link down handler for the
* struct scic_sds_port object. This function notifies the SCI User that the phy has
@ -1349,21 +1347,18 @@ static void scic_sds_port_ready_operational_substate_link_up_handler(
* state to the ready waiting substate. none
*/
static void scic_sds_port_ready_operational_substate_link_down_handler(
struct scic_sds_port *this_port,
struct scic_sds_phy *the_phy)
struct scic_sds_port *sci_port,
struct scic_sds_phy *sci_phy)
{
scic_sds_port_deactivate_phy(this_port, the_phy, true);
scic_sds_port_deactivate_phy(sci_port, sci_phy, true);
/*
* If there are no active phys left in the port, then transition
* the port to the WAITING state until such time as a phy goes
* link up. */
if (this_port->active_phy_mask == 0) {
sci_base_state_machine_change_state(
scic_sds_port_get_ready_substate_machine(this_port),
SCIC_SDS_PORT_READY_SUBSTATE_WAITING
);
}
if (sci_port->active_phy_mask == 0)
sci_base_state_machine_change_state(&sci_port->ready_substate_machine,
SCIC_SDS_PORT_READY_SUBSTATE_WAITING);
}
/**
@ -1820,169 +1815,52 @@ const struct sci_base_state scic_sds_port_ready_substate_table[] = {
},
};
/*
* ***************************************************************************
* * DEFAULT HANDLERS
* *************************************************************************** */
/**
*
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
* This is the default method for port a start request. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_port_default_start_handler(
struct sci_base_port *port)
static enum sci_status default_port_handler(struct sci_base_port *base_port, const char *func)
{
struct scic_sds_port *sci_port = (struct scic_sds_port *)port;
struct scic_sds_port *sci_port;
sci_port = container_of(base_port, typeof(*sci_port), parent);
dev_warn(sciport_to_dev(sci_port),
"%s: SCIC Port 0x%p requested to start while in invalid "
"state %d\n",
__func__,
port,
sci_base_state_machine_get_state(
scic_sds_port_get_base_state_machine(
(struct scic_sds_port *)port)));
"%s: in wrong state: %d\n", func,
sci_base_state_machine_get_state(&base_port->state_machine));
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
* This is the default method for a port stop request. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
static enum sci_status scic_sds_port_default_stop_handler(
struct sci_base_port *port)
enum sci_status scic_sds_port_default_start_handler(struct sci_base_port *base_port)
{
struct scic_sds_port *sci_port = (struct scic_sds_port *)port;
return default_port_handler(base_port, __func__);
}
dev_warn(sciport_to_dev(sci_port),
"%s: SCIC Port 0x%p requested to stop while in invalid "
"state %d\n",
__func__,
port,
sci_base_state_machine_get_state(
scic_sds_port_get_base_state_machine(
(struct scic_sds_port *)port)));
static enum sci_status scic_sds_port_default_stop_handler(struct sci_base_port *base_port)
{
return default_port_handler(base_port, __func__);
}
return SCI_FAILURE_INVALID_STATE;
enum sci_status scic_sds_port_default_destruct_handler(struct sci_base_port *base_port)
{
return default_port_handler(base_port, __func__);
}
enum sci_status scic_sds_port_default_reset_handler(struct sci_base_port *base_port,
u32 timeout)
{
return default_port_handler(base_port, __func__);
}
static enum sci_status scic_sds_port_default_add_phy_handler(struct sci_base_port *base_port,
struct sci_base_phy *base_phy)
{
return default_port_handler(base_port, __func__);
}
enum sci_status scic_sds_port_default_remove_phy_handler(struct sci_base_port *base_port,
struct sci_base_phy *base_phy)
{
return default_port_handler(base_port, __func__);
}
/**
*
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
* This is the default method for a port destruct request. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_port_default_destruct_handler(
struct sci_base_port *port)
{
struct scic_sds_port *sci_port = (struct scic_sds_port *)port;
dev_warn(sciport_to_dev(sci_port),
"%s: SCIC Port 0x%p requested to destruct while in invalid "
"state %d\n",
__func__,
port,
sci_base_state_machine_get_state(
scic_sds_port_get_base_state_machine(
(struct scic_sds_port *)port)));
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
* @timeout: This is the timeout for the reset request to complete.
*
* This is the default method for a port reset request. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_port_default_reset_handler(
struct sci_base_port *port,
u32 timeout)
{
struct scic_sds_port *sci_port = (struct scic_sds_port *)port;
dev_warn(sciport_to_dev(sci_port),
"%s: SCIC Port 0x%p requested to reset while in invalid "
"state %d\n",
__func__,
port,
sci_base_state_machine_get_state(
scic_sds_port_get_base_state_machine(
(struct scic_sds_port *)port)));
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
* This is the default method for a port add phy request. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
static enum sci_status scic_sds_port_default_add_phy_handler(
struct sci_base_port *port,
struct sci_base_phy *phy)
{
struct scic_sds_port *sci_port = (struct scic_sds_port *)port;
dev_warn(sciport_to_dev(sci_port),
"%s: SCIC Port 0x%p requested to add phy 0x%p while in "
"invalid state %d\n",
__func__,
port,
phy,
sci_base_state_machine_get_state(
scic_sds_port_get_base_state_machine(
(struct scic_sds_port *)port)));
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
* This is the default method for a port remove phy request. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_port_default_remove_phy_handler(
struct sci_base_port *port,
struct sci_base_phy *phy)
{
struct scic_sds_port *sci_port = (struct scic_sds_port *)port;
dev_warn(sciport_to_dev(sci_port),
"%s: SCIC Port 0x%p requested to remove phy 0x%p while in "
"invalid state %d\n",
__func__,
port,
phy,
sci_base_state_machine_get_state(
scic_sds_port_get_base_state_machine(
(struct scic_sds_port *)port)));
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* scic_sds_port_default_frame_handler
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
@ -1991,150 +1869,49 @@ enum sci_status scic_sds_port_default_remove_phy_handler(
* possible to receive an unsolicited frame directed to a port object? It
* seems possible if we implementing virtual functions but until then?
*/
enum sci_status scic_sds_port_default_frame_handler(
struct scic_sds_port *port,
u32 frame_index)
enum sci_status scic_sds_port_default_frame_handler(struct scic_sds_port *sci_port,
u32 frame_index)
{
dev_warn(sciport_to_dev(port),
"%s: SCIC Port 0x%p requested to process frame %d while in "
"invalid state %d\n",
__func__,
port,
frame_index,
sci_base_state_machine_get_state(
scic_sds_port_get_base_state_machine(port)));
struct scic_sds_controller *scic = scic_sds_port_get_controller(sci_port);
scic_sds_controller_release_frame(
scic_sds_port_get_controller(port), frame_index
);
default_port_handler(&sci_port->parent, __func__);
scic_sds_controller_release_frame(scic, frame_index);
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
* This is the default method for a port event request. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_port_default_event_handler(
struct scic_sds_port *port,
u32 event_code)
enum sci_status scic_sds_port_default_event_handler(struct scic_sds_port *sci_port,
u32 event_code)
{
dev_warn(sciport_to_dev(port),
"%s: SCIC Port 0x%p requested to process event 0x%x while "
"in invalid state %d\n",
__func__,
port,
event_code,
sci_base_state_machine_get_state(
scic_sds_port_get_base_state_machine(
(struct scic_sds_port *)port)));
return SCI_FAILURE_INVALID_STATE;
return default_port_handler(&sci_port->parent, __func__);
}
/**
*
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
* This is the default method for a port link up notification. It will report
* a warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
void scic_sds_port_default_link_up_handler(
struct scic_sds_port *this_port,
struct scic_sds_phy *phy)
void scic_sds_port_default_link_up_handler(struct scic_sds_port *sci_port,
struct scic_sds_phy *sci_phy)
{
dev_warn(sciport_to_dev(this_port),
"%s: SCIC Port 0x%p received link_up notification from phy "
"0x%p while in invalid state %d\n",
__func__,
this_port,
phy,
sci_base_state_machine_get_state(
scic_sds_port_get_base_state_machine(this_port)));
default_port_handler(&sci_port->parent, __func__);
}
/**
*
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
* This is the default method for a port link down notification. It will
* report a warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
void scic_sds_port_default_link_down_handler(
struct scic_sds_port *this_port,
struct scic_sds_phy *phy)
void scic_sds_port_default_link_down_handler(struct scic_sds_port *sci_port,
struct scic_sds_phy *sci_phy)
{
dev_warn(sciport_to_dev(this_port),
"%s: SCIC Port 0x%p received link down notification from "
"phy 0x%p while in invalid state %d\n",
__func__,
this_port,
phy,
sci_base_state_machine_get_state(
scic_sds_port_get_base_state_machine(this_port)));
default_port_handler(&sci_port->parent, __func__);
}
/**
*
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
* This is the default method for a port start io request. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_port_default_start_io_handler(
struct scic_sds_port *this_port,
struct scic_sds_remote_device *device,
struct scic_sds_request *io_request)
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)
{
dev_warn(sciport_to_dev(this_port),
"%s: SCIC Port 0x%p requested to start io request 0x%p "
"while in invalid state %d\n",
__func__,
this_port,
io_request,
sci_base_state_machine_get_state(
scic_sds_port_get_base_state_machine(this_port)));
return SCI_FAILURE_INVALID_STATE;
return default_port_handler(&sci_port->parent, __func__);
}
/**
*
* @port: This is the struct sci_base_port object which is cast into a struct scic_sds_port
* object.
*
* This is the default method for a port complete io request. It will report a
* warning and exit. enum sci_status SCI_FAILURE_INVALID_STATE
*/
static enum sci_status scic_sds_port_default_complete_io_handler(
struct scic_sds_port *this_port,
struct scic_sds_remote_device *device,
struct scic_sds_request *io_request)
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)
{
dev_warn(sciport_to_dev(this_port),
"%s: SCIC Port 0x%p requested to complete io request 0x%p "
"while in invalid state %d\n",
__func__,
this_port,
io_request,
sci_base_state_machine_get_state(
scic_sds_port_get_base_state_machine(this_port)));
return SCI_FAILURE_INVALID_STATE;
return default_port_handler(&sci_port->parent, __func__);
}
/*
* ****************************************************************************
* * GENERAL STATE HANDLERS
* **************************************************************************** */
/**
*
* @port: This is the struct scic_sds_port object on which the io request count will
@ -2160,11 +1937,6 @@ static enum sci_status scic_sds_port_general_complete_io_handler(
return SCI_SUCCESS;
}
/*
* ****************************************************************************
* * STOPPED STATE HANDLERS
* **************************************************************************** */
/**
* scic_sds_port_stopped_state_start_handler() - stop a port from "started"
*
@ -2242,9 +2014,8 @@ scic_sds_port_stopped_state_start_handler(struct sci_base_port *base_port)
* silicon.
*/
if (scic_sds_port_is_phy_mask_valid(sci_port, phy_mask) == true) {
sci_base_state_machine_change_state(
scic_sds_port_get_base_state_machine(sci_port),
SCI_BASE_PORT_STATE_READY);
sci_base_state_machine_change_state(&base_port->state_machine,
SCI_BASE_PORT_STATE_READY);
return SCI_SUCCESS;
} else
@ -2390,19 +2161,15 @@ static enum sci_status scic_sds_port_stopped_state_remove_phy_handler(
* 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 *port,
struct scic_sds_port *sci_port,
struct scic_sds_remote_device *device,
struct scic_sds_request *io_request)
{
struct scic_sds_port *this_port = (struct scic_sds_port *)port;
scic_sds_port_decrement_request_count(sci_port);
scic_sds_port_decrement_request_count(this_port);
if (this_port->started_request_count == 0) {
sci_base_state_machine_change_state(
scic_sds_port_get_base_state_machine(this_port),
SCI_BASE_PORT_STATE_STOPPED
);
if (sci_port->started_request_count == 0) {
sci_base_state_machine_change_state(&sci_port->parent.state_machine,
SCI_BASE_PORT_STATE_STOPPED);
}
return SCI_SUCCESS;
@ -2727,9 +2494,8 @@ static void scic_sds_port_stopped_state_exit(
}
/**
*
* @object: This is the struct sci_base_object which is cast to a
* struct scic_sds_port object.
* scic_sds_port_ready_state_enter -
* @object: This is the struct sci_base_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
@ -2738,50 +2504,40 @@ static void scic_sds_port_stopped_state_exit(
*/
static void scic_sds_port_ready_state_enter(struct sci_base_object *object)
{
struct scic_sds_port *sci_port = (struct scic_sds_port *)object;
struct isci_port *iport = sci_object_get_association(sci_port);
struct scic_sds_controller *scic =
scic_sds_port_get_controller(sci_port);
struct isci_host *ihost = sci_object_get_association(scic);
struct scic_sds_controller *scic;
struct scic_sds_port *sci_port;
struct isci_port *iport;
struct isci_host *ihost;
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);
sci_port = container_of(object, typeof(*sci_port), parent.parent);
scic = scic_sds_port_get_controller(sci_port);
ihost = sci_object_get_association(scic);
iport = sci_object_get_association(sci_port);
if (sci_port->parent.state_machine.previous_state_id ==
SCI_BASE_PORT_STATE_RESETTING)
/* 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->parent.state_machine.previous_state_id;
if (prev_state == SCI_BASE_PORT_STATE_RESETTING)
isci_port_hard_reset_complete(iport, SCI_SUCCESS);
else /* Notify the caller that the port is not yet ready */
else
isci_port_not_ready(ihost, iport);
/* Post and suspend the dummy remote node context for this port. */
scic_sds_port_post_dummy_remote_node(sci_port);
/* Start the ready substate machine */
sci_base_state_machine_start(
scic_sds_port_get_ready_substate_machine(sci_port));
sci_base_state_machine_start(&sci_port->ready_substate_machine);
}
/**
*
* @object: This is the struct sci_base_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_READY. This function does nothing. none
*/
static void scic_sds_port_ready_state_exit(
struct sci_base_object *object)
static void scic_sds_port_ready_state_exit(struct sci_base_object *object)
{
struct scic_sds_port *this_port;
struct scic_sds_port *sci_port;
this_port = (struct scic_sds_port *)object;
sci_base_state_machine_stop(&this_port->ready_substate_machine);
scic_sds_port_invalidate_dummy_remote_node(this_port);
sci_port = container_of(object, typeof(*sci_port), parent.parent);
sci_base_state_machine_stop(&sci_port->ready_substate_machine);
scic_sds_port_invalidate_dummy_remote_node(sci_port);
}
/**

16
drivers/scsi/isci/core/scic_sds_port.h
View File

@ -250,14 +250,6 @@ extern struct scic_sds_port_state_handler scic_sds_port_ready_substate_handler_t
#define scic_sds_port_get_controller(this_port) \
((this_port)->owning_controller)
/**
* scic_sds_port_get_base_state_machine() -
*
* Helper macro to get the base state machine for this port
*/
#define scic_sds_port_get_base_state_machine(this_port) \
(&(this_port)->parent.state_machine)
/**
* scic_sds_port_set_base_state_handlers() -
*
@ -267,14 +259,6 @@ extern struct scic_sds_port_state_handler scic_sds_port_ready_substate_handler_t
scic_sds_port_set_state_handlers(\
(this_port), &scic_sds_port_state_handler_table[(state_id)])
/**
* scic_sds_port_get_ready_substate_machine() -
*
* Helper macro to get the ready substate machine for this port
*/
#define scic_sds_port_get_ready_substate_machine(this_port) \
(&(this_port)->ready_substate_machine)
/**
* scic_sds_port_set_state_handlers() -
*

508
drivers/scsi/isci/core/scic_sds_remote_device.c
View File

@ -135,8 +135,7 @@ enum sci_status scic_remote_device_da_construct(
&remote_node_index);
if (status == SCI_SUCCESS) {
scic_sds_remote_node_context_set_remote_node_index(
sci_dev->rnc, remote_node_index);
sci_dev->rnc->remote_node_index = remote_node_index;
scic_sds_port_get_attached_sas_address(
sci_dev->owning_port, &sci_dev->device_address);
@ -510,16 +509,14 @@ bool scic_sds_remote_device_is_atapi(
static void scic_sds_cb_remote_device_rnc_destruct_complete(
void *user_parameter)
{
struct scic_sds_remote_device *this_device;
struct scic_sds_remote_device *sci_dev;
this_device = (struct scic_sds_remote_device *)user_parameter;
sci_dev = (struct scic_sds_remote_device *)user_parameter;
BUG_ON(this_device->started_request_count != 0);
BUG_ON(sci_dev->started_request_count != 0);
sci_base_state_machine_change_state(
scic_sds_remote_device_get_base_state_machine(this_device),
SCI_BASE_REMOTE_DEVICE_STATE_STOPPED
);
sci_base_state_machine_change_state(&sci_dev->parent.state_machine,
SCI_BASE_REMOTE_DEVICE_STATE_STOPPED);
}
/**
@ -649,206 +646,64 @@ static enum sci_status scic_sds_remote_device_terminate_requests(
return status;
}
/*
* *****************************************************************************
* * DEFAULT STATE HANDLERS
* ***************************************************************************** */
static enum sci_status default_device_handler(struct sci_base_remote_device *base_dev,
const char *func)
{
struct scic_sds_remote_device *sci_dev;
sci_dev = container_of(base_dev, typeof(*sci_dev), parent);
dev_warn(scirdev_to_dev(sci_dev),
"%s: in wrong state: %d\n", func,
sci_base_state_machine_get_state(&base_dev->state_machine));
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
* struct scic_sds_remote_device.
*
* This method is the default start handler. It logs a warning and returns a
* failure. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_remote_device_default_start_handler(
struct sci_base_remote_device *device)
struct sci_base_remote_device *base_dev)
{
struct scic_sds_remote_device *sds_device =
(struct scic_sds_remote_device *)device;
dev_warn(scirdev_to_dev(sds_device),
"%s: SCIC Remote Device requested to start while in wrong "
"state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_remote_device_get_base_state_machine(
sds_device)));
return SCI_FAILURE_INVALID_STATE;
return default_device_handler(base_dev, __func__);
}
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
* struct scic_sds_remote_device.
*
* This method is the default stop handler. It logs a warning and returns a
* failure. enum sci_status SCI_FAILURE_INVALID_STATE
*/
static enum sci_status scic_sds_remote_device_default_stop_handler(
struct sci_base_remote_device *device)
struct sci_base_remote_device *base_dev)
{
struct scic_sds_remote_device *sds_device =
(struct scic_sds_remote_device *)device;
dev_warn(scirdev_to_dev(sds_device),
"%s: SCIC Remote Device requested to stop while in wrong "
"state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_remote_device_get_base_state_machine(
sds_device)));
return SCI_FAILURE_INVALID_STATE;
return default_device_handler(base_dev, __func__);
}
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
* struct scic_sds_remote_device.
*
* This method is the default fail handler. It logs a warning and returns a
* failure. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_remote_device_default_fail_handler(
struct sci_base_remote_device *device)
struct sci_base_remote_device *base_dev)
{
struct scic_sds_remote_device *sds_device =
(struct scic_sds_remote_device *)device;
dev_warn(scirdev_to_dev(sds_device),
"%s: SCIC Remote Device requested to fail while in wrong "
"state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_remote_device_get_base_state_machine(
sds_device)));
return SCI_FAILURE_INVALID_STATE;
return default_device_handler(base_dev, __func__);
}
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
* struct scic_sds_remote_device.
*
* This method is the default destruct handler. It logs a warning and returns
* a failure. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_remote_device_default_destruct_handler(
struct sci_base_remote_device *device)
struct sci_base_remote_device *base_dev)
{
struct scic_sds_remote_device *sds_device =
(struct scic_sds_remote_device *)device;
dev_warn(scirdev_to_dev(sds_device),
"%s: SCIC Remote Device requested to destroy while in "
"wrong state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_remote_device_get_base_state_machine(
sds_device)));
return SCI_FAILURE_INVALID_STATE;
return default_device_handler(base_dev, __func__);
}
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
* struct scic_sds_remote_device.
*
* This method is the default reset handler. It logs a warning and returns a
* failure. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_remote_device_default_reset_handler(
struct sci_base_remote_device *device)
struct sci_base_remote_device *base_dev)
{
struct scic_sds_remote_device *sds_device =
(struct scic_sds_remote_device *)device;
dev_warn(scirdev_to_dev(sds_device),
"%s: SCIC Remote Device requested to reset while in wrong "
"state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_remote_device_get_base_state_machine(
sds_device)));
return SCI_FAILURE_INVALID_STATE;
return default_device_handler(base_dev, __func__);
}
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
* struct scic_sds_remote_device.
*
* This method is the default reset complete handler. It logs a warning and
* returns a failure. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_remote_device_default_reset_complete_handler(
struct sci_base_remote_device *device)
struct sci_base_remote_device *base_dev)
{
struct scic_sds_remote_device *sds_device =
(struct scic_sds_remote_device *)device;
dev_warn(scirdev_to_dev(sds_device),
"%s: SCIC Remote Device requested to complete reset while "
"in wrong state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_remote_device_get_base_state_machine(
sds_device)));
return SCI_FAILURE_INVALID_STATE;
return default_device_handler(base_dev, __func__);
}
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
* struct scic_sds_remote_device.
*
* This method is the default suspend handler. It logs a warning and returns a
* failure. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_remote_device_default_suspend_handler(
struct scic_sds_remote_device *this_device,
u32 suspend_type)
struct scic_sds_remote_device *sci_dev, u32 suspend_type)
{
dev_warn(scirdev_to_dev(this_device),
"%s: SCIC Remote Device 0x%p requested to suspend %d while "
"in wrong state %d\n",
__func__,
this_device,
suspend_type,
sci_base_state_machine_get_state(
scic_sds_remote_device_get_base_state_machine(
this_device)));
return SCI_FAILURE_INVALID_STATE;
return default_device_handler(&sci_dev->parent, __func__);
}
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
* struct scic_sds_remote_device.
*
* This method is the default resume handler. It logs a warning and returns a
* failure. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_remote_device_default_resume_handler(
struct scic_sds_remote_device *this_device)
struct scic_sds_remote_device *sci_dev)
{
dev_warn(scirdev_to_dev(this_device),
"%s: SCIC Remote Device requested to resume while in "
"wrong state %d\n",
__func__,
sci_base_state_machine_get_state(
scic_sds_remote_device_get_base_state_machine(
this_device)));
return SCI_FAILURE_INVALID_STATE;
return default_device_handler(&sci_dev->parent, __func__);
}
/**
@ -960,109 +815,27 @@ enum sci_status scic_sds_remote_device_default_frame_handler(
return SCI_FAILURE_INVALID_STATE;
}
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
* struct scic_sds_remote_device.
* @request: The struct sci_base_request which is then cast into a SCIC_SDS_IO_REQUEST
* to start.
*
* This method is the default start io handler. It logs a warning and returns
* a failure. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_remote_device_default_start_request_handler(
struct sci_base_remote_device *device,
struct sci_base_remote_device *base_dev,
struct sci_base_request *request)
{
struct scic_sds_remote_device *sds_device =
(struct scic_sds_remote_device *)device;
dev_warn(scirdev_to_dev(sds_device),
"%s: SCIC Remote Device requested to start io request %p "
"while in wrong state %d\n",
__func__,
request,
sci_base_state_machine_get_state(
scic_sds_remote_device_get_base_state_machine(
(struct scic_sds_remote_device *)device)));
return SCI_FAILURE_INVALID_STATE;
return default_device_handler(base_dev, __func__);
}
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
* struct scic_sds_remote_device.
* @request: The struct sci_base_request which is then cast into a SCIC_SDS_IO_REQUEST
* to complete.
*
* This method is the default complete io handler. It logs a warning and
* returns a failure. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_remote_device_default_complete_request_handler(
struct sci_base_remote_device *device,
struct sci_base_remote_device *base_dev,
struct sci_base_request *request)
{
struct scic_sds_remote_device *sds_device =
(struct scic_sds_remote_device *)device;
dev_warn(scirdev_to_dev(sds_device),
"%s: SCIC Remote Device requested to complete io_request %p "
"while in wrong state %d\n",
__func__,
request,
sci_base_state_machine_get_state(
scic_sds_remote_device_get_base_state_machine(
sds_device)));
return SCI_FAILURE_INVALID_STATE;
return default_device_handler(base_dev, __func__);
}
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
* struct scic_sds_remote_device.
* @request: The struct sci_base_request which is then cast into a SCIC_SDS_IO_REQUEST
* to continue.
*
* This method is the default continue io handler. It logs a warning and
* returns a failure. enum sci_status SCI_FAILURE_INVALID_STATE
*/
enum sci_status scic_sds_remote_device_default_continue_request_handler(
struct sci_base_remote_device *device,
struct sci_base_remote_device *base_dev,
struct sci_base_request *request)
{
struct scic_sds_remote_device *sds_device =
(struct scic_sds_remote_device *)device;
dev_warn(scirdev_to_dev(sds_device),
"%s: SCIC Remote Device requested to continue io request %p "
"while in wrong state %d\n",
__func__,
request,
sci_base_state_machine_get_state(
scic_sds_remote_device_get_base_state_machine(
sds_device)));
return SCI_FAILURE_INVALID_STATE;
return default_device_handler(base_dev, __func__);
}
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
* struct scic_sds_remote_device.
* @request: The struct sci_base_request which is then cast into a SCIC_SDS_IO_REQUEST
* to complete.
*
* This method is the default complete task handler. It logs a warning and
* returns a failure. enum sci_status SCI_FAILURE_INVALID_STATE
*/
/*
* *****************************************************************************
* * NORMAL STATE HANDLERS
* ***************************************************************************** */
/**
*
* @device: The struct sci_base_remote_device which is then cast into a
@ -1146,45 +919,32 @@ enum sci_status scic_sds_remote_device_general_event_handler(
* which to construct the remote device.
*/
static enum sci_status scic_sds_remote_device_stopped_state_start_handler(
struct sci_base_remote_device *device)
struct sci_base_remote_device *base_dev)
{
enum sci_status status;
struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)device;
struct scic_sds_remote_device *sci_dev;
status = scic_sds_remote_node_context_resume(
this_device->rnc,
scic_sds_remote_device_resume_complete_handler,
this_device
);
sci_dev = container_of(base_dev, typeof(*sci_dev), parent);
if (status == SCI_SUCCESS) {
sci_base_state_machine_change_state(
scic_sds_remote_device_get_base_state_machine(this_device),
SCI_BASE_REMOTE_DEVICE_STATE_STARTING
);
}
status = scic_sds_remote_node_context_resume(sci_dev->rnc,
scic_sds_remote_device_resume_complete_handler, sci_dev);
if (status == SCI_SUCCESS)
sci_base_state_machine_change_state(&base_dev->state_machine,
SCI_BASE_REMOTE_DEVICE_STATE_STARTING);
return status;
}
/**
*
* @this_device: The struct sci_base_remote_device which is cast into a
* struct scic_sds_remote_device.
*
* This method will stop a struct scic_sds_remote_device that is already in a stopped
* state. This is not considered an error since the device is already stopped.
* enum sci_status SCI_SUCCESS
*/
static enum sci_status scic_sds_remote_device_stopped_state_stop_handler(
struct sci_base_remote_device *this_device)
struct sci_base_remote_device *base_dev)
{
return SCI_SUCCESS;
}
/**
*
* @this_device: The struct sci_base_remote_device which is cast into a
* @sci_dev: The struct sci_base_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
@ -1194,25 +954,19 @@ static enum sci_status scic_sds_remote_device_stopped_state_stop_handler(
* enum sci_status SCI_SUCCESS
*/
static enum sci_status scic_sds_remote_device_stopped_state_destruct_handler(
struct sci_base_remote_device *device)
struct sci_base_remote_device *base_dev)
{
struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)device;
struct scic_sds_remote_device *sci_dev;
struct scic_sds_controller *scic;
scic_sds_controller_free_remote_node_context(
scic_sds_remote_device_get_controller(this_device),
this_device,
this_device->rnc->remote_node_index
);
sci_dev = container_of(base_dev, typeof(*sci_dev), parent);
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;
scic_sds_remote_node_context_set_remote_node_index(
this_device->rnc,
SCIC_SDS_REMOTE_NODE_CONTEXT_INVALID_INDEX
);
sci_base_state_machine_change_state(
scic_sds_remote_device_get_base_state_machine(this_device),
SCI_BASE_REMOTE_DEVICE_STATE_FINAL
);
sci_base_state_machine_change_state(&base_dev->state_machine,
SCI_BASE_REMOTE_DEVICE_STATE_FINAL);
return SCI_SUCCESS;
}
@ -1223,86 +977,49 @@ static enum sci_status scic_sds_remote_device_stopped_state_destruct_handler(
* ***************************************************************************** */
static enum sci_status scic_sds_remote_device_starting_state_stop_handler(
struct sci_base_remote_device *device)
struct sci_base_remote_device *base_dev)
{
struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)device;
struct scic_sds_remote_device *sci_dev;
sci_dev = container_of(base_dev, typeof(*sci_dev), parent);
/*
* This device has not yet started so there had better be no IO requests
*/
BUG_ON(this_device->started_request_count != 0);
BUG_ON(sci_dev->started_request_count != 0);
/*
* Destroy the remote node context
*/
scic_sds_remote_node_context_destruct(
this_device->rnc,
scic_sds_cb_remote_device_rnc_destruct_complete,
this_device
);
scic_sds_remote_node_context_destruct(sci_dev->rnc,
scic_sds_cb_remote_device_rnc_destruct_complete, sci_dev);
/*
* Transition to the stopping state and wait for the remote node to
* complete being posted and invalidated.
*/
sci_base_state_machine_change_state(
scic_sds_remote_device_get_base_state_machine(this_device),
SCI_BASE_REMOTE_DEVICE_STATE_STOPPING
);
sci_base_state_machine_change_state(&base_dev->state_machine,
SCI_BASE_REMOTE_DEVICE_STATE_STOPPING);
return SCI_SUCCESS;
}
/*
* *****************************************************************************
* * INITIALIZING STATE HANDLERS
* ***************************************************************************** */
/* There is nothing to do here for SSP devices */
/*
* *****************************************************************************
* * READY STATE HANDLERS
* ***************************************************************************** */
/**
*
* @this_device: The struct scic_sds_remote_device object to be suspended.
*
* This method is the resume handler for the struct scic_sds_remote_device object. It
* will post an RNC resume to the SCU hardware. enum sci_status SCI_SUCCESS
*/
/**
*
* @device: The struct sci_base_remote_device object which is cast to a
* struct scic_sds_remote_device object.
*
* This method is the default stop handler for the struct scic_sds_remote_device ready
* substate machine. It will stop the current substate machine and transition
* the base state machine to SCI_BASE_REMOTE_DEVICE_STATE_STOPPING. enum sci_status
* SCI_SUCCESS
*/
enum sci_status scic_sds_remote_device_ready_state_stop_handler(
struct sci_base_remote_device *device)
struct sci_base_remote_device *base_dev)
{
struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)device;
enum sci_status status = SCI_SUCCESS;
struct scic_sds_remote_device *sci_dev;
enum sci_status status = SCI_SUCCESS;
sci_dev = container_of(base_dev, typeof(*sci_dev), parent);
/* Request the parent state machine to transition to the stopping state */
sci_base_state_machine_change_state(
scic_sds_remote_device_get_base_state_machine(this_device),
SCI_BASE_REMOTE_DEVICE_STATE_STOPPING
);
sci_base_state_machine_change_state(&base_dev->state_machine,
SCI_BASE_REMOTE_DEVICE_STATE_STOPPING);
if (this_device->started_request_count == 0) {
scic_sds_remote_node_context_destruct(
this_device->rnc,
if (sci_dev->started_request_count == 0) {
scic_sds_remote_node_context_destruct(sci_dev->rnc,
scic_sds_cb_remote_device_rnc_destruct_complete,
this_device
);
sci_dev);
} else
status = scic_sds_remote_device_terminate_requests(this_device);
status = scic_sds_remote_device_terminate_requests(sci_dev);
return status;
}
@ -1315,30 +1032,18 @@ enum sci_status scic_sds_remote_device_ready_state_stop_handler(
* This is the ready state device reset handler enum sci_status
*/
enum sci_status scic_sds_remote_device_ready_state_reset_handler(
struct sci_base_remote_device *device)
struct sci_base_remote_device *base_dev)
{
struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)device;
struct scic_sds_remote_device *sci_dev;
sci_dev = container_of(base_dev, typeof(*sci_dev), parent);
/* Request the parent state machine to transition to the stopping state */
sci_base_state_machine_change_state(
scic_sds_remote_device_get_base_state_machine(this_device),
SCI_BASE_REMOTE_DEVICE_STATE_RESETTING
);
sci_base_state_machine_change_state(&base_dev->state_machine,
SCI_BASE_REMOTE_DEVICE_STATE_RESETTING);
return SCI_SUCCESS;
}
/**
*
* @device: The struct sci_base_remote_device object which is cast to a
* struct scic_sds_remote_device object.
*
* This is the default fail handler for the struct scic_sds_remote_device ready
* substate machine. It will stop the current ready substate and transition
* the remote device object to the SCI_BASE_REMOTE_DEVICE_STATE_FAILED.
* enum sci_status SCI_SUCCESS
*/
/**
*
* @device: The struct sci_base_remote_device which is cast to a
@ -1775,19 +1480,15 @@ const struct scic_sds_remote_device_state_handler scic_sds_remote_device_state_h
static void scic_sds_remote_device_initial_state_enter(
struct sci_base_object *object)
{
struct scic_sds_remote_device *this_device = (struct scic_sds_remote_device *)object;
struct scic_sds_remote_device *sci_dev = (struct scic_sds_remote_device *)object;
SET_STATE_HANDLER(
this_device,
scic_sds_remote_device_state_handler_table,
SCI_BASE_REMOTE_DEVICE_STATE_INITIAL
);
sci_dev = container_of(object, typeof(*sci_dev), parent.parent);
SET_STATE_HANDLER(sci_dev, scic_sds_remote_device_state_handler_table,
SCI_BASE_REMOTE_DEVICE_STATE_INITIAL);
/* Initial state is a transitional state to the stopped state */
sci_base_state_machine_change_state(
scic_sds_remote_device_get_base_state_machine(this_device),
SCI_BASE_REMOTE_DEVICE_STATE_STOPPED
);
sci_base_state_machine_change_state(&sci_dev->parent.state_machine,
SCI_BASE_REMOTE_DEVICE_STATE_STOPPED);
}
/**
@ -1803,29 +1504,28 @@ static void scic_sds_remote_device_initial_state_enter(
static void scic_sds_remote_device_stopped_state_enter(
struct sci_base_object *object)
{
struct scic_sds_remote_device *sci_dev =
(struct scic_sds_remote_device *)object;
struct scic_sds_controller *scic =
scic_sds_remote_device_get_controller(sci_dev);
struct isci_host *ihost = sci_object_get_association(scic);
struct isci_remote_device *idev =
sci_object_get_association(sci_dev);
struct scic_sds_remote_device *sci_dev;
struct scic_sds_controller *scic;
struct isci_remote_device *idev;
struct isci_host *ihost;
u32 prev_state;
SET_STATE_HANDLER(sci_dev,
scic_sds_remote_device_state_handler_table,
sci_dev = container_of(object, typeof(*sci_dev), parent.parent);
scic = scic_sds_remote_device_get_controller(sci_dev);
ihost = sci_object_get_association(scic);
idev = sci_object_get_association(sci_dev);
SET_STATE_HANDLER(sci_dev, scic_sds_remote_device_state_handler_table,
SCI_BASE_REMOTE_DEVICE_STATE_STOPPED);
/*
* If we are entering from the stopping state let the SCI User know that
/* If we are entering from the stopping state let the SCI User know that
* the stop operation has completed.
*/
if (sci_dev->parent.state_machine.previous_state_id ==
SCI_BASE_REMOTE_DEVICE_STATE_STOPPING)
prev_state = sci_dev->parent.state_machine.previous_state_id;
if (prev_state == SCI_BASE_REMOTE_DEVICE_STATE_STOPPING)
isci_remote_device_stop_complete(ihost, idev, SCI_SUCCESS);
scic_sds_controller_remote_device_stopped(
scic_sds_remote_device_get_controller(sci_dev),
sci_dev);
scic_sds_controller_remote_device_stopped(scic, sci_dev);
}
/**

16
drivers/scsi/isci/core/scic_sds_remote_device.h
View File

@ -376,22 +376,6 @@ extern const struct scic_sds_remote_device_state_handler scic_sds_smp_remote_dev
#define scic_sds_remote_device_set_state_handlers(this_device, handlers) \
((this_device)->state_handlers = (handlers))
/**
* scic_sds_remote_device_get_base_state_machine() -
*
* This macro returns the base sate machine object for the remote device.
*/
#define scic_sds_remote_device_get_base_state_machine(this_device) \
(&(this_device)->parent.state_machine)
/**
* scic_sds_remote_device_get_ready_substate_machine() -
*
* This macro returns the remote device ready substate machine
*/
#define scic_sds_remote_device_get_ready_substate_machine(this_device) \
(&(this_device)->ready_substate_machine)
/**
* scic_sds_remote_device_get_port() -
*

3
drivers/scsi/isci/core/scic_sds_remote_node_context.h
View File

@ -296,9 +296,6 @@ void scic_sds_remote_node_context_construct_buffer(
bool scic_sds_remote_node_context_is_ready(
struct scic_sds_remote_node_context *this_rnc);
#define scic_sds_remote_node_context_set_remote_node_index(rnc, rni) \
((rnc)->remote_node_index = (rni))
#define scic_sds_remote_node_context_get_remote_node_index(rcn) \
((rnc)->remote_node_index)