From 966699b50c61940e06ff39fb1085bea813f9a51d Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 12 May 2011 03:44:24 -0700 Subject: [PATCH] isci: unify phy start handlers Implement all handlers in scic_sds_phy_start(), and kill the state handler Reported-by: Christoph Hellwig Signed-off-by: Dan Williams --- drivers/scsi/isci/phy.c | 74 +++++++++++------------------------------ drivers/scsi/isci/phy.h | 6 ---- 2 files changed, 19 insertions(+), 61 deletions(-) diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index e5ae676926f2..7cae192a2a30 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -440,16 +440,27 @@ void scic_sds_phy_get_protocols(struct scic_sds_phy *sci_phy, 0x0000FFFF); } -/** - * This method will attempt to start the phy object. This request is only valid - * when the phy is in the stopped state - * @sci_phy: - * - * enum sci_status - */ enum sci_status scic_sds_phy_start(struct scic_sds_phy *sci_phy) { - return sci_phy->state_handlers->start_handler(sci_phy); + struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller; + enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id; + struct isci_host *ihost = scic_to_ihost(scic); + + if (state != SCI_BASE_PHY_STATE_STOPPED) { + dev_dbg(sciphy_to_dev(sci_phy), + "%s: in wrong state: %d\n", __func__, state); + return SCI_FAILURE_INVALID_STATE; + } + + /* 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); + + if (sci_phy->sata_timeout_timer) + sci_base_state_machine_change_state(&sci_phy->state_machine, + SCI_BASE_PHY_STATE_STARTING); + + return SCI_SUCCESS; } /** @@ -1256,12 +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_start_handler(struct scic_sds_phy *sci_phy) -{ - return default_phy_handler(sci_phy, __func__); -} - static enum sci_status scic_sds_phy_default_stop_handler(struct scic_sds_phy *sci_phy) { @@ -1305,31 +1310,6 @@ scic_sds_phy_default_consume_power_handler(struct scic_sds_phy *sci_phy) return default_phy_handler(sci_phy, __func__); } -/* - * This method takes the struct scic_sds_phy from a stopped state and - * 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 scic_sds_phy *sci_phy) -{ - struct isci_host *ihost; - struct scic_sds_controller *scic; - - scic = scic_sds_phy_get_controller(sci_phy), - ihost = scic_to_ihost(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); - - if (sci_phy->sata_timeout_timer) - sci_base_state_machine_change_state(&sci_phy->state_machine, - SCI_BASE_PHY_STATE_STARTING); - - return SCI_SUCCESS; -} - static enum sci_status scic_sds_phy_stopped_state_destroy_handler(struct scic_sds_phy *sci_phy) { @@ -1429,7 +1409,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .stop_handler = scic_sds_phy_default_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, @@ -1438,7 +1417,6 @@ 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] = { - .start_handler = scic_sds_phy_stopped_state_start_handler, .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, @@ -1447,7 +1425,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .stop_handler = scic_sds_phy_default_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, @@ -1456,7 +1433,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .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, @@ -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_OSSP_EN] = { - .start_handler = scic_sds_phy_default_start_handler, .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, @@ -1474,7 +1449,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .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, @@ -1483,7 +1457,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .stop_handler = scic_sds_phy_default_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, @@ -1492,7 +1465,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .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, @@ -1501,7 +1473,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .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, @@ -1510,7 +1481,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .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, @@ -1519,7 +1489,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .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, @@ -1528,7 +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 }, [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF] = { - .start_handler = scic_sds_phy_default_start_handler, .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, @@ -1537,7 +1505,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .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, @@ -1546,7 +1513,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .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, @@ -1555,7 +1521,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .stop_handler = scic_sds_phy_default_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, @@ -1564,7 +1529,6 @@ 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] = { - .start_handler = scic_sds_phy_default_start_handler, .stop_handler = scic_sds_phy_default_stop_handler, .reset_handler = scic_sds_phy_default_reset_handler, .destruct_handler = scic_sds_phy_default_destroy_handler, diff --git a/drivers/scsi/isci/phy.h b/drivers/scsi/isci/phy.h index bf0296463c80..9b7d54e64e8f 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 start_handler specifies the method invoked when there is an - * attempt to start a phy. - */ - scic_sds_phy_handler_t start_handler; - /** * The stop_handler specifies the method invoked when there is an * attempt to stop a phy. -- 2.20.1