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isci: unify phy reset handlers
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Unify the implementations in scic_sds_phy_reset(), and kill the state handler

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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@djbw
djbw committed Jul 3, 2011
1 parent 9315323 commit 0cf36fa
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Showing 2 changed files with 12 additions and 47 deletions.
53 changes: 12 additions & 41 deletions drivers/scsi/isci/phy.c
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Original file line number Diff line number Diff line change
Expand Up @@ -490,17 +490,19 @@ enum sci_status scic_sds_phy_stop(struct scic_sds_phy *sci_phy)
return SCI_SUCCESS;
}

/**
* This method will attempt to reset the phy. This request is only valid when
* the phy is in an ready state
* @sci_phy:
*
* enum sci_status
*/
enum sci_status scic_sds_phy_reset(
struct scic_sds_phy *sci_phy)
enum sci_status scic_sds_phy_reset(struct scic_sds_phy *sci_phy)
{
return sci_phy->state_handlers->reset_handler(sci_phy);
enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id;

if (state != SCI_BASE_PHY_STATE_READY) {
dev_dbg(sciphy_to_dev(sci_phy),
"%s: in wrong state: %d\n", __func__, state);
return SCI_FAILURE_INVALID_STATE;
}

sci_base_state_machine_change_state(&sci_phy->state_machine,
SCI_BASE_PHY_STATE_RESETTING);
return SCI_SUCCESS;
}

/**
Expand Down Expand Up @@ -1265,12 +1267,6 @@ static enum sci_status default_phy_handler(struct scic_sds_phy *sci_phy,
return SCI_FAILURE_INVALID_STATE;
}

static enum sci_status
scic_sds_phy_default_reset_handler(struct scic_sds_phy *sci_phy)
{
return default_phy_handler(sci_phy, __func__);
}

static enum sci_status
scic_sds_phy_default_destroy_handler(struct scic_sds_phy *sci_phy)
{
Expand Down Expand Up @@ -1308,15 +1304,6 @@ scic_sds_phy_stopped_state_destroy_handler(struct scic_sds_phy *sci_phy)
return SCI_SUCCESS;
}

static enum sci_status
scic_sds_phy_ready_state_reset_handler(struct scic_sds_phy *sci_phy)
{
sci_base_state_machine_change_state(&sci_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.
Expand Down Expand Up @@ -1392,112 +1379,96 @@ static enum sci_status scic_sds_phy_resetting_state_event_handler(struct scic_sd

static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[] = {
[SCI_BASE_PHY_STATE_INITIAL] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_default_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_STOPPED] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_stopped_state_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_default_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_STARTING] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_default_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_default_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_starting_substate_await_ossp_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_starting_substate_await_sas_phy_speed_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_starting_substate_await_iaf_uf_frame_handler,
.event_handler = scic_sds_phy_starting_substate_await_iaf_uf_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_starting_substate_await_sas_power_event_handler,
.consume_power_handler = scic_sds_phy_starting_substate_await_sas_power_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_starting_substate_await_sata_power_event_handler,
.consume_power_handler = scic_sds_phy_starting_substate_await_sata_power_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_starting_substate_await_sata_phy_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_starting_substate_await_sata_speed_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_starting_substate_await_sig_fis_frame_handler,
.event_handler = scic_sds_phy_starting_substate_await_sig_fis_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_default_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_READY] = {
.reset_handler = scic_sds_phy_ready_state_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_ready_state_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_RESETTING] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_resetting_state_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_FINAL] = {
.reset_handler = scic_sds_phy_default_reset_handler,
.destruct_handler = scic_sds_phy_default_destroy_handler,
.frame_handler = scic_sds_phy_default_frame_handler,
.event_handler = scic_sds_phy_default_event_handler,
Expand Down
6 changes: 0 additions & 6 deletions drivers/scsi/isci/phy.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -511,12 +511,6 @@ typedef enum sci_status (*scic_sds_phy_frame_handler_t)(struct scic_sds_phy *, u
typedef enum sci_status (*scic_sds_phy_power_handler_t)(struct scic_sds_phy *);

struct scic_sds_phy_state_handler {
/**
* The reset_handler specifies the method invoked when there is an
* attempt to reset a phy.
*/
scic_sds_phy_handler_t reset_handler;

/**
* The destruct_handler specifies the method invoked when attempting to
* destruct a phy.
Expand Down

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