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isci: unify phy consume_power handlers

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Unify the implementations in scic_sds_phy_consume_power_handler(), and kill
the state handler plus infrastructure.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2011-05-12 04:51:41 -07:00
parent 23506a69e2
commit 5b1d4af251
2 changed files with 83 additions and 527 deletions
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574
drivers/scsi/isci/phy.c
View File

@ -505,16 +505,53 @@ enum sci_status scic_sds_phy_reset(struct scic_sds_phy *sci_phy)
return SCI_SUCCESS;
}
/**
* This method will give the phy permission to consume power
* @sci_phy:
*
* enum sci_status
*/
enum sci_status scic_sds_phy_consume_power_handler(
struct scic_sds_phy *sci_phy)
enum sci_status scic_sds_phy_consume_power_handler(struct scic_sds_phy *sci_phy)
{
return sci_phy->state_handlers->consume_power_handler(sci_phy);
enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id;
switch (state) {
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER: {
u32 enable_spinup;
enable_spinup = readl(&sci_phy->link_layer_registers->notify_enable_spinup_control);
enable_spinup |= SCU_ENSPINUP_GEN_BIT(ENABLE);
writel(enable_spinup, &sci_phy->link_layer_registers->notify_enable_spinup_control);
/* Change state to the final state this substate machine has run to completion */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL);
return SCI_SUCCESS;
}
case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER: {
u32 scu_sas_pcfg_value;
/* Release the spinup hold state and reset the OOB state machine */
scu_sas_pcfg_value =
readl(&sci_phy->link_layer_registers->phy_configuration);
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);
writel(scu_sas_pcfg_value,
&sci_phy->link_layer_registers->phy_configuration);
/* 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);
writel(scu_sas_pcfg_value,
&sci_phy->link_layer_registers->phy_configuration);
/* Change state to the final state this substate machine has run to completion */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN);
return SCI_SUCCESS;
}
default:
dev_dbg(sciphy_to_dev(sci_phy),
"%s: in wrong state: %d\n", __func__, state);
return SCI_FAILURE_INVALID_STATE;
}
}
/*
@ -592,76 +629,6 @@ static void scic_sds_phy_complete_link_training(
next_state);
}
/*
* This method is called by the struct scic_sds_controller when the phy object is
* granted power. - The notify enable spinups are turned on for this phy object
* - The phy state machine is transitioned to the
* 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 *sci_phy)
{
u32 enable_spinup;
enable_spinup = readl(&sci_phy->link_layer_registers->notify_enable_spinup_control);
enable_spinup |= SCU_ENSPINUP_GEN_BIT(ENABLE);
writel(enable_spinup, &sci_phy->link_layer_registers->notify_enable_spinup_control);
/* Change state to the final state this substate machine has run to completion */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL);
return SCI_SUCCESS;
}
/*
* This method is called by the struct scic_sds_controller when the phy object is
* granted power. - The phy state machine is transitioned to the
* 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 *sci_phy)
{
u32 scu_sas_pcfg_value;
/* Release the spinup hold state and reset the OOB state machine */
scu_sas_pcfg_value =
readl(&sci_phy->link_layer_registers->phy_configuration);
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);
writel(scu_sas_pcfg_value,
&sci_phy->link_layer_registers->phy_configuration);
/* 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);
writel(scu_sas_pcfg_value,
&sci_phy->link_layer_registers->phy_configuration);
/* Change state to the final state this substate machine has run to completion */
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN);
return SCI_SUCCESS;
}
static enum sci_status default_phy_handler(struct scic_sds_phy *sci_phy,
const char *func)
{
dev_dbg(sciphy_to_dev(sci_phy),
"%s: in wrong state: %d\n", func,
sci_base_state_machine_get_state(&sci_phy->state_machine));
return SCI_FAILURE_INVALID_STATE;
}
static enum sci_status
scic_sds_phy_default_consume_power_handler(struct scic_sds_phy *sci_phy)
{
return default_phy_handler(sci_phy, __func__);
}
enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
u32 event_code)
{
@ -1059,287 +1026,71 @@ enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy,
}
/* --------------------------------------------------------------------------- */
static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[] = {
[SCI_BASE_PHY_STATE_INITIAL] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_STOPPED] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_STARTING] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER] = {
.consume_power_handler = scic_sds_phy_starting_substate_await_sas_power_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER] = {
.consume_power_handler = scic_sds_phy_starting_substate_await_sata_power_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_READY] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_RESETTING] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_FINAL] = {
.consume_power_handler = scic_sds_phy_default_consume_power_handler
}
};
/*
* ****************************************************************************
* * PHY STARTING SUBSTATE METHODS
* **************************************************************************** */
/**
* scic_sds_phy_starting_initial_substate_enter -
* @object: This is the 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
* entering the SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL. - The initial state
* 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(void *object)
{
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_handlers(
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(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN);
}
/**
*
* @object: This is the 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
* entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_PHY_TYPE_EN. - Set the
* struct scic_sds_phy object state handlers for this state. none
*/
static void scic_sds_phy_starting_await_ossp_en_substate_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_handlers(
sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN
);
}
/**
*
* @object: This is the 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
* entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SPEED_EN. - Set the
* struct scic_sds_phy object state handlers for this state. none
*/
static void scic_sds_phy_starting_await_sas_speed_en_substate_enter(
void *object)
{
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_handlers(
sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN
);
}
/**
*
* @object: This is the 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
* entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF. - Set the
* struct scic_sds_phy object state handlers for this state. none
*/
static void scic_sds_phy_starting_await_iaf_uf_substate_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_handlers(
sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF
);
}
/**
*
* @object: This is the 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
* entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER. - Set the
* struct scic_sds_phy object state handlers for this state. - Add this phy object to
* the power control queue none
*/
static void scic_sds_phy_starting_await_sas_power_substate_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller;
scic_sds_phy_set_base_state_handlers(
sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER
);
scic_sds_controller_power_control_queue_insert(
scic_sds_phy_get_controller(sci_phy),
sci_phy
);
scic_sds_controller_power_control_queue_insert(scic, sci_phy);
}
/**
*
* @object: This is the 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 exiting
* the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER. - Remove the
* struct scic_sds_phy object from the power control queue. none
*/
static void scic_sds_phy_starting_await_sas_power_substate_exit(void *object)
{
struct scic_sds_phy *sci_phy = object;
struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller;
scic_sds_controller_power_control_queue_remove(
scic_sds_phy_get_controller(sci_phy), sci_phy
);
scic_sds_controller_power_control_queue_remove(scic, sci_phy);
}
/**
*
* @object: This is the 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
* entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER. - Set the
* struct scic_sds_phy object state handlers for this state. - Add this phy object to
* the power control queue none
*/
static void scic_sds_phy_starting_await_sata_power_substate_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller;
scic_sds_phy_set_base_state_handlers(
sci_phy, SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER
);
scic_sds_controller_power_control_queue_insert(
scic_sds_phy_get_controller(sci_phy),
sci_phy
);
scic_sds_controller_power_control_queue_insert(scic, sci_phy);
}
/**
*
* @object: This is the 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 exiting
* the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER. - Remove the
* struct scic_sds_phy object from the power control queue. none
*/
static void scic_sds_phy_starting_await_sata_power_substate_exit(void *object)
{
struct scic_sds_phy *sci_phy = object;
struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller;
scic_sds_controller_power_control_queue_remove(
scic_sds_phy_get_controller(sci_phy),
sci_phy
);
scic_sds_controller_power_control_queue_remove(scic, sci_phy);
}
/**
*
* @object: This is the object which is cast to a struct scic_sds_phy object.
*
* This function will perform the actions required by the struct scic_sds_phy on
* entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN. - Set the
* struct scic_sds_phy object state handlers for this state. none
*/
static void scic_sds_phy_starting_await_sata_phy_substate_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_handlers(
sci_phy,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN);
isci_timer_start(sci_phy->sata_timeout_timer,
SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT);
}
/**
*
* @object: This is the 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 exiting
* the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. - stop the timer
* that was started on entry to await sata phy event notification none
*/
static inline void scic_sds_phy_starting_await_sata_phy_substate_exit(
void *object)
static void scic_sds_phy_starting_await_sata_phy_substate_exit(void *object)
{
struct scic_sds_phy *sci_phy = object;
isci_timer_stop(sci_phy->sata_timeout_timer);
}
/**
*
* @object: This is the 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
* entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. - Set the
* struct scic_sds_phy object state handlers for this state. none
*/
static void scic_sds_phy_starting_await_sata_speed_substate_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_handlers(
sci_phy,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN);
isci_timer_start(sci_phy->sata_timeout_timer,
SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT);
}
/**
*
* @object: This is the object which is cast to a struct scic_sds_phy object.
*
* This function will perform the actions required by the
* struct scic_sds_phy on exiting
* the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN. - stop the timer
* that was started on entry to await sata phy event notification none
*/
static inline void scic_sds_phy_starting_await_sata_speed_substate_exit(
static void scic_sds_phy_starting_await_sata_speed_substate_exit(
void *object)
{
struct scic_sds_phy *sci_phy = object;
@ -1347,30 +1098,12 @@ static inline void scic_sds_phy_starting_await_sata_speed_substate_exit(
isci_timer_stop(sci_phy->sata_timeout_timer);
}
/**
*
* @object: This is the object which is cast to a struct scic_sds_phy object.
*
* This function will perform the actions required by the struct scic_sds_phy on
* entering the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. - Set the
* struct scic_sds_phy object state handlers for this state.
* - Start the SIGNATURE FIS
* timeout timer none
*/
static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(void *object)
{
bool continue_to_ready_state;
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_handlers(
sci_phy,
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF);
if (scic_sds_port_link_detected(sci_phy->owning_port, sci_phy)) {
continue_to_ready_state = scic_sds_port_link_detected(
sci_phy->owning_port,
sci_phy);
if (continue_to_ready_state) {
/*
* Clear the PE suspend condition so we can actually
* receive SIG FIS
@ -1385,39 +1118,17 @@ static void scic_sds_phy_starting_await_sig_fis_uf_substate_enter(void *object)
sci_phy->is_in_link_training = false;
}
/**
*
* @object: This is the object which is cast to a struct scic_sds_phy object.
*
* This function will perform the actions required by the
* struct scic_sds_phy on exiting
* the SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. - Stop the SIGNATURE
* FIS timeout timer. none
*/
static inline void scic_sds_phy_starting_await_sig_fis_uf_substate_exit(
void *object)
static void scic_sds_phy_starting_await_sig_fis_uf_substate_exit(void *object)
{
struct scic_sds_phy *sci_phy = object;
isci_timer_stop(sci_phy->sata_timeout_timer);
}
/**
*
* @object: This is the 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
* entering the SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL. - Set the struct scic_sds_phy
* object state handlers for this state. - Change base state machine to the
* ready state. none
*/
static void scic_sds_phy_starting_final_substate_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_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
*/
@ -1425,11 +1136,6 @@ static void scic_sds_phy_starting_final_substate_enter(void *object)
SCI_BASE_PHY_STATE_READY);
}
/*
* ****************************************************************************
* * PHY STATE PRIVATE METHODS
* **************************************************************************** */
/**
*
* @sci_phy: This is the struct scic_sds_phy object to stop.
@ -1511,49 +1217,17 @@ static void scu_link_layer_tx_hard_reset(
&sci_phy->link_layer_registers->phy_configuration);
}
/*
* ****************************************************************************
* * PHY BASE STATE METHODS
* **************************************************************************** */
/**
*
* @object: This is the 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
* entering the SCI_BASE_PHY_STATE_INITIAL. - This function sets the state
* handlers for the phy object base state machine initial state. none
*/
static void scic_sds_phy_initial_state_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_INITIAL);
}
/**
*
* @object: This is the object which is cast to a struct scic_sds_phy object.
*
* This function will perform the actions required by the struct scic_sds_phy on
* entering the SCI_BASE_PHY_STATE_INITIAL. - This function sets the state
* handlers for the phy object base state machine initial state. - The SCU
* hardware is requested to stop the protocol engine. none
*/
static void scic_sds_phy_stopped_state_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
struct scic_sds_controller *scic = scic_sds_phy_get_controller(sci_phy);
struct scic_sds_port *sci_port = sci_phy->owning_port;
struct scic_sds_controller *scic = sci_port->owning_controller;
struct isci_host *ihost = scic_to_ihost(scic);
/*
* @todo We need to get to the controller to place this PE in a
* reset state
*/
scic_sds_phy_set_base_state_handlers(sci_phy,
SCI_BASE_PHY_STATE_STOPPED);
if (sci_phy->sata_timeout_timer != NULL) {
isci_del_timer(ihost, sci_phy->sata_timeout_timer);
@ -1562,32 +1236,16 @@ static void scic_sds_phy_stopped_state_enter(void *object)
scu_link_layer_stop_protocol_engine(sci_phy);
if (sci_phy->state_machine.previous_state_id !=
SCI_BASE_PHY_STATE_INITIAL)
scic_sds_controller_link_down(
scic_sds_phy_get_controller(sci_phy),
scic_sds_phy_get_port(sci_phy),
sci_phy);
if (sci_phy->state_machine.previous_state_id != SCI_BASE_PHY_STATE_INITIAL)
scic_sds_controller_link_down(scic_sds_phy_get_controller(sci_phy),
scic_sds_phy_get_port(sci_phy),
sci_phy);
}
/**
*
* @object: This is the 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
* entering the SCI_BASE_PHY_STATE_STARTING. - This function sets the state
* handlers for the phy object base state machine starting state. - The SCU
* hardware is requested to start OOB/SN on this protocl engine. - The phy
* starting substate machine is started. - If the previous state was the ready
* state then the struct scic_sds_controller is informed that the phy has gone link
* down. none
*/
static void scic_sds_phy_starting_state_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_STARTING);
scu_link_layer_stop_protocol_engine(sci_phy);
scu_link_layer_start_oob(sci_phy);
@ -1595,50 +1253,25 @@ static void scic_sds_phy_starting_state_enter(void *object)
sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_UNKNOWN;
sci_phy->bcn_received_while_port_unassigned = false;
if (sci_phy->state_machine.previous_state_id
== SCI_BASE_PHY_STATE_READY) {
scic_sds_controller_link_down(
scic_sds_phy_get_controller(sci_phy),
scic_sds_phy_get_port(sci_phy),
sci_phy
);
}
if (sci_phy->state_machine.previous_state_id == SCI_BASE_PHY_STATE_READY)
scic_sds_controller_link_down(scic_sds_phy_get_controller(sci_phy),
scic_sds_phy_get_port(sci_phy),
sci_phy);
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL);
}
/**
*
* @object: This is the 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
* entering the SCI_BASE_PHY_STATE_READY. - This function sets the state
* handlers for the phy object base state machine ready state. - The SCU
* hardware protocol engine is resumed. - The struct scic_sds_controller is informed
* that the phy object has gone link up. none
*/
static void scic_sds_phy_ready_state_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_READY);
scic_sds_controller_link_up(scic_sds_phy_get_controller(sci_phy),
scic_sds_phy_get_port(sci_phy),
sci_phy);
scic_sds_controller_link_up(
scic_sds_phy_get_controller(sci_phy),
scic_sds_phy_get_port(sci_phy),
sci_phy
);
}
/**
*
* @object: This is the 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 exiting
* the SCI_BASE_PHY_STATE_INITIAL. This function suspends the SCU hardware
* protocol engine represented by this struct scic_sds_phy object. none
*/
static void scic_sds_phy_ready_state_exit(void *object)
{
struct scic_sds_phy *sci_phy = object;
@ -1646,62 +1279,29 @@ static void scic_sds_phy_ready_state_exit(void *object)
scic_sds_phy_suspend(sci_phy);
}
/**
*
* @object: This is the 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
* entering the SCI_BASE_PHY_STATE_RESETTING. - This function sets the state
* handlers for the phy object base state machine resetting state. none
*/
static void scic_sds_phy_resetting_state_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_RESETTING);
/*
* The phy is being reset, therefore deactivate it from the port.
* In the resetting state we don't notify the user regarding
* link up and link down notifications. */
/* The phy is being reset, therefore deactivate it from the port. In
* the resetting state we don't notify the user regarding link up and
* link down notifications
*/
scic_sds_port_deactivate_phy(sci_phy->owning_port, sci_phy, false);
if (sci_phy->protocol == SCIC_SDS_PHY_PROTOCOL_SAS) {
scu_link_layer_tx_hard_reset(sci_phy);
} else {
/*
* The SCU does not need to have a discrete reset state so
/* The SCU does not need to have a discrete reset state so
* just go back to the starting state.
*/
sci_base_state_machine_change_state(
&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_STARTING);
}
}
/**
*
* @object: This is the 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
* entering the SCI_BASE_PHY_STATE_FINAL. - This function sets the state
* handlers for the phy object base state machine final state. none
*/
static void scic_sds_phy_final_state_enter(void *object)
{
struct scic_sds_phy *sci_phy = object;
scic_sds_phy_set_base_state_handlers(sci_phy, SCI_BASE_PHY_STATE_FINAL);
/* Nothing to do here */
}
/* --------------------------------------------------------------------------- */
static const struct sci_base_state scic_sds_phy_state_table[] = {
[SCI_BASE_PHY_STATE_INITIAL] = {
.enter_state = scic_sds_phy_initial_state_enter,
},
[SCI_BASE_PHY_STATE_INITIAL] = { },
[SCI_BASE_PHY_STATE_STOPPED] = {
.enter_state = scic_sds_phy_stopped_state_enter,
},
@ -1711,15 +1311,9 @@ static const struct sci_base_state scic_sds_phy_state_table[] = {
[SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = {
.enter_state = scic_sds_phy_starting_initial_substate_enter,
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN] = {
.enter_state = scic_sds_phy_starting_await_ossp_en_substate_enter,
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN] = {
.enter_state = scic_sds_phy_starting_await_sas_speed_en_substate_enter,
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF] = {
.enter_state = scic_sds_phy_starting_await_iaf_uf_substate_enter,
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN] = { },
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN] = { },
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF] = { },
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER] = {
.enter_state = scic_sds_phy_starting_await_sas_power_substate_enter,
.exit_state = scic_sds_phy_starting_await_sas_power_substate_exit,
@ -1750,9 +1344,7 @@ static const struct sci_base_state scic_sds_phy_state_table[] = {
[SCI_BASE_PHY_STATE_RESETTING] = {
.enter_state = scic_sds_phy_resetting_state_enter,
},
[SCI_BASE_PHY_STATE_FINAL] = {
.enter_state = scic_sds_phy_final_state_enter,
},
[SCI_BASE_PHY_STATE_FINAL] = { },
};
void scic_sds_phy_construct(struct scic_sds_phy *sci_phy,

36
drivers/scsi/isci/phy.h
View File

@ -140,8 +140,6 @@ struct scic_sds_phy {
*/
void *sata_timeout_timer;
const struct scic_sds_phy_state_handler *state_handlers;
/**
* This field is the pointer to the transport layer register for the SCU
* hardware.
@ -504,20 +502,6 @@ enum scic_sds_phy_states {
SCI_BASE_PHY_STATE_FINAL,
};
typedef enum sci_status (*scic_sds_phy_handler_t)(struct scic_sds_phy *);
typedef enum sci_status (*scic_sds_phy_event_handler_t)(struct scic_sds_phy *, u32);
typedef enum sci_status (*scic_sds_phy_frame_handler_t)(struct scic_sds_phy *, u32);
typedef enum sci_status (*scic_sds_phy_power_handler_t)(struct scic_sds_phy *);
struct scic_sds_phy_state_handler {
/**
* The state handler for staggered spinup.
*/
scic_sds_phy_power_handler_t consume_power_handler;
};
/**
* scic_sds_phy_get_index() -
*
@ -535,26 +519,6 @@ struct scic_sds_phy_state_handler {
#define scic_sds_phy_get_controller(phy) \
(scic_sds_port_get_controller((phy)->owning_port))
/**
* scic_sds_phy_set_state_handlers() - This macro sets the state handlers for
* this phy object
*
*
*/
#define scic_sds_phy_set_state_handlers(phy, handlers) \
((phy)->state_handlers = (handlers))
/**
* scic_sds_phy_set_base_state_handlers() -
*
* This macro set the base state handlers for the phy object.
*/
#define scic_sds_phy_set_base_state_handlers(phy, state_id) \
scic_sds_phy_set_state_handlers(\
(phy), \
&scic_sds_phy_state_handler_table[(state_id)] \
)
void scic_sds_phy_construct(
struct scic_sds_phy *this_phy,
struct scic_sds_port *owning_port,