From 931532364e7966f61683bdf40fa1698d6707f523 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 12 May 2011 04:01:03 -0700 Subject: [PATCH] isci: unify phy stop handlers Merge all implementations in scic_sds_phy_stop(), and kill the state handler Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/phy.c | 79 ++++++++++++----------------------------- drivers/scsi/isci/phy.h | 6 ---- 2 files changed, 23 insertions(+), 62 deletions(-) diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index 7cae192a2a30..cf8f2e9f6b25 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -463,16 +463,31 @@ enum sci_status scic_sds_phy_start(struct scic_sds_phy *sci_phy) return SCI_SUCCESS; } -/** - * This method will attempt to stop the phy object. - * @sci_phy: - * - * enum sci_status SCI_SUCCESS if the phy is going to stop SCI_INVALID_STATE - * if the phy is not in a valid state to stop - */ enum sci_status scic_sds_phy_stop(struct scic_sds_phy *sci_phy) { - return sci_phy->state_handlers->stop_handler(sci_phy); + enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id; + + switch (state) { + case SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL: + case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN: + case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN: + case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER: + case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER: + case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN: + case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN: + case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF: + case SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL: + case SCI_BASE_PHY_STATE_READY: + break; + default: + 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_STOPPED); + return SCI_SUCCESS; } /** @@ -611,23 +626,6 @@ static void scic_sds_phy_restart_starting_state( SCI_BASE_PHY_STATE_STARTING); } -/* **************************************************************************** - * SCIC SDS PHY general handlers - ************************************************************************** */ -static enum sci_status scic_sds_phy_starting_substate_general_stop_handler( - struct scic_sds_phy *phy) -{ - sci_base_state_machine_change_state(&phy->state_machine, - SCI_BASE_PHY_STATE_STOPPED); - - return SCI_SUCCESS; -} - -/* - * ***************************************************************************** - * * SCIC SDS PHY EVENT_HANDLERS - * ***************************************************************************** */ - /** * * @phy: This struct scic_sds_phy object which has received an event. @@ -1267,12 +1265,6 @@ 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_stop_handler(struct scic_sds_phy *sci_phy) -{ - return default_phy_handler(sci_phy, __func__); -} - static enum sci_status scic_sds_phy_default_reset_handler(struct scic_sds_phy *sci_phy) { @@ -1316,15 +1308,6 @@ 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_stop_handler(struct scic_sds_phy *sci_phy) -{ - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STOPPED); - - return SCI_SUCCESS; -} - static enum sci_status scic_sds_phy_ready_state_reset_handler(struct scic_sds_phy *sci_phy) { @@ -1409,7 +1392,6 @@ 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] = { - .stop_handler = scic_sds_phy_default_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, .frame_handler = scic_sds_phy_default_frame_handler, @@ -1417,7 +1399,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCI_BASE_PHY_STATE_STOPPED] = { - .stop_handler = scic_sds_phy_default_stop_handler, .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, @@ -1425,7 +1406,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCI_BASE_PHY_STATE_STARTING] = { - .stop_handler = scic_sds_phy_default_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, .frame_handler = scic_sds_phy_default_frame_handler, @@ -1433,7 +1413,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = { - .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, .frame_handler = scic_sds_phy_default_frame_handler, @@ -1441,7 +1420,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN] = { - .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, .frame_handler = scic_sds_phy_default_frame_handler, @@ -1449,7 +1427,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN] = { - .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, .frame_handler = scic_sds_phy_default_frame_handler, @@ -1457,7 +1434,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF] = { - .stop_handler = scic_sds_phy_default_stop_handler, .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, @@ -1465,7 +1441,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER] = { - .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, .frame_handler = scic_sds_phy_default_frame_handler, @@ -1473,7 +1448,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_starting_substate_await_sas_power_consume_power_handler }, [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER] = { - .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, .frame_handler = scic_sds_phy_default_frame_handler, @@ -1481,7 +1455,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_starting_substate_await_sata_power_consume_power_handler }, [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN] = { - .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, .frame_handler = scic_sds_phy_default_frame_handler, @@ -1489,7 +1462,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN] = { - .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, .frame_handler = scic_sds_phy_default_frame_handler, @@ -1497,7 +1469,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF] = { - .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, .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, @@ -1505,7 +1476,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL] = { - .stop_handler = scic_sds_phy_starting_substate_general_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, .frame_handler = scic_sds_phy_default_frame_handler, @@ -1513,7 +1483,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCI_BASE_PHY_STATE_READY] = { - .stop_handler = scic_sds_phy_ready_state_stop_handler, .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, @@ -1521,7 +1490,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCI_BASE_PHY_STATE_RESETTING] = { - .stop_handler = scic_sds_phy_default_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, .frame_handler = scic_sds_phy_default_frame_handler, @@ -1529,7 +1497,6 @@ static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[ .consume_power_handler = scic_sds_phy_default_consume_power_handler }, [SCI_BASE_PHY_STATE_FINAL] = { - .stop_handler = scic_sds_phy_default_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, .frame_handler = scic_sds_phy_default_frame_handler, diff --git a/drivers/scsi/isci/phy.h b/drivers/scsi/isci/phy.h index 9b7d54e64e8f..d829e15eed10 100644 --- a/drivers/scsi/isci/phy.h +++ b/drivers/scsi/isci/phy.h @@ -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 stop_handler specifies the method invoked when there is an - * attempt to stop a phy. - */ - scic_sds_phy_handler_t stop_handler; - /** * The reset_handler specifies the method invoked when there is an * attempt to reset a phy. -- 2.30.2