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authorDan Williams <dan.j.williams@intel.com>2011-02-23 00:14:06 -0800
committerDan Williams <dan.j.williams@intel.com>2011-07-03 03:55:27 -0700
commit8f31550c77849250ec49d1509b6bb63b4ddc59e4 (patch)
tree380980cfaf7923b701a2cb95ba17071c9afa225a
parent858d4aa741c80fb7579cda3517853f0cffc73772 (diff)
isci: phy state machine cleanup step1
c99 the struct initializers: 1/ allows grep to consistently show method name associations. The naming is mostly consistent (except when it isn't) so this guarantees coverage of present and future exception cases. 2/ let's the compiler guarantee that the state table array entry correlates with an actual state name and detect accidental reordering or deletion of states. / allows default handler's to be identified easily Signed-off-by: Jacek Danecki <Jacek.Danecki@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
-rw-r--r--drivers/scsi/isci/core/sci_base_phy.h15
-rw-r--r--drivers/scsi/isci/core/scic_sds_phy.c314
-rw-r--r--drivers/scsi/isci/core/scic_sds_phy.h24
3 files changed, 145 insertions, 208 deletions
diff --git a/drivers/scsi/isci/core/sci_base_phy.h b/drivers/scsi/isci/core/sci_base_phy.h
index 6c0d9bbbc95f..7e2c7e331437 100644
--- a/drivers/scsi/isci/core/sci_base_phy.h
+++ b/drivers/scsi/isci/core/sci_base_phy.h
@@ -115,9 +115,6 @@ enum sci_base_phy_states {
* Simply the final state for the base phy state machine.
*/
SCI_BASE_PHY_STATE_FINAL,
-
- SCI_BASE_PHY_MAX_STATES
-
};
/**
@@ -138,9 +135,7 @@ struct sci_base_phy {
struct sci_base_state_machine state_machine;
};
-typedef enum sci_status (*SCI_BASE_PHY_HANDLER_T)(
- struct sci_base_phy *
- );
+typedef enum sci_status (*sci_base_phy_handler_t)(struct sci_base_phy *);
/**
* struct sci_base_phy_state_handler - This structure contains all of the state
@@ -155,25 +150,25 @@ struct sci_base_phy_state_handler {
* The start_handler specifies the method invoked when there is an
* attempt to start a phy.
*/
- SCI_BASE_PHY_HANDLER_T start_handler;
+ sci_base_phy_handler_t start_handler;
/**
* The stop_handler specifies the method invoked when there is an
* attempt to stop a phy.
*/
- SCI_BASE_PHY_HANDLER_T stop_handler;
+ sci_base_phy_handler_t stop_handler;
/**
* The reset_handler specifies the method invoked when there is an
* attempt to reset a phy.
*/
- SCI_BASE_PHY_HANDLER_T reset_handler;
+ sci_base_phy_handler_t reset_handler;
/**
* The destruct_handler specifies the method invoked when attempting to
* destruct a phy.
*/
- SCI_BASE_PHY_HANDLER_T destruct_handler;
+ sci_base_phy_handler_t destruct_handler;
};
diff --git a/drivers/scsi/isci/core/scic_sds_phy.c b/drivers/scsi/isci/core/scic_sds_phy.c
index 743e5a6b7409..98e9179e227c 100644
--- a/drivers/scsi/isci/core/scic_sds_phy.c
+++ b/drivers/scsi/isci/core/scic_sds_phy.c
@@ -103,7 +103,7 @@ static enum sci_status scic_sds_phy_link_layer_initialization(
this_phy->link_layer_registers = link_layer_registers;
/* Set our IDENTIFY frame data */
- #define SCI_END_DEVICE 0x01
+ #define SCI_END_DEVICE 0x01
SCU_SAS_TIID_WRITE(
this_phy,
@@ -1406,128 +1406,96 @@ static enum sci_status scic_sds_phy_starting_substate_await_sata_power_consume_p
/* --------------------------------------------------------------------------- */
-struct scic_sds_phy_state_handler
-scic_sds_phy_starting_substate_handler_table[SCIC_SDS_PHY_STARTING_MAX_SUBSTATES] =
-{
- /* SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_default_event_handler,
- scic_sds_phy_default_consume_power_handler
+const struct scic_sds_phy_state_handler scic_sds_phy_starting_substate_handler_table[] = {
+ [SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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 */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_starting_substate_await_ossp_event_handler,
- scic_sds_phy_default_consume_power_handler
+ [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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 */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_starting_substate_await_sas_phy_speed_event_handler,
- scic_sds_phy_default_consume_power_handler
+ [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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 */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_starting_substate_await_iaf_uf_frame_handler,
- scic_sds_phy_starting_substate_await_iaf_uf_event_handler,
- scic_sds_phy_default_consume_power_handler
+ [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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 */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_starting_substate_await_sas_power_event_handler,
- scic_sds_phy_starting_substate_await_sas_power_consume_power_handler
+ [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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, */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_starting_substate_await_sata_power_event_handler,
- scic_sds_phy_starting_substate_await_sata_power_consume_power_handler
+ [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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, */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_starting_substate_await_sata_phy_event_handler,
- scic_sds_phy_default_consume_power_handler
+ [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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, */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_starting_substate_await_sata_speed_event_handler,
- scic_sds_phy_default_consume_power_handler
+ [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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, */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_starting_substate_await_sig_fis_frame_handler,
- scic_sds_phy_starting_substate_await_sig_fis_event_handler,
- scic_sds_phy_default_consume_power_handler
+ [SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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 */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_default_event_handler,
- scic_sds_phy_default_consume_power_handler
+ [SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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
}
};
@@ -2344,80 +2312,60 @@ static enum sci_status scic_sds_phy_resetting_state_event_handler(
/* --------------------------------------------------------------------------- */
-struct scic_sds_phy_state_handler
-scic_sds_phy_state_handler_table[SCI_BASE_PHY_MAX_STATES] =
-{
- /* SCI_BASE_PHY_STATE_INITIAL */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_default_event_handler,
- scic_sds_phy_default_consume_power_handler
+const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[] = {
+ [SCI_BASE_PHY_STATE_INITIAL] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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 */
- {
- {
- scic_sds_phy_stopped_state_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_stopped_state_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_default_event_handler,
- scic_sds_phy_default_consume_power_handler
+ [SCI_BASE_PHY_STATE_STOPPED] = {
+ .parent.start_handler = scic_sds_phy_stopped_state_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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 */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_default_event_handler,
- scic_sds_phy_default_consume_power_handler
+ [SCI_BASE_PHY_STATE_STARTING] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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 */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_ready_state_stop_handler,
- scic_sds_phy_ready_state_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_ready_state_event_handler,
- scic_sds_phy_default_consume_power_handler
+ [SCI_BASE_PHY_STATE_READY] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_ready_state_stop_handler,
+ .parent.reset_handler = scic_sds_phy_ready_state_reset_handler,
+ .parent.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 */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_resetting_state_event_handler,
- scic_sds_phy_default_consume_power_handler
+ [SCI_BASE_PHY_STATE_RESETTING] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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 */
- {
- {
- scic_sds_phy_default_start_handler,
- scic_sds_phy_default_stop_handler,
- scic_sds_phy_default_reset_handler,
- scic_sds_phy_default_destroy_handler
- },
- scic_sds_phy_default_frame_handler,
- scic_sds_phy_default_event_handler,
- scic_sds_phy_default_consume_power_handler
+ [SCI_BASE_PHY_STATE_FINAL] = {
+ .parent.start_handler = scic_sds_phy_default_start_handler,
+ .parent.stop_handler = scic_sds_phy_default_stop_handler,
+ .parent.reset_handler = scic_sds_phy_default_reset_handler,
+ .parent.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
}
};
diff --git a/drivers/scsi/isci/core/scic_sds_phy.h b/drivers/scsi/isci/core/scic_sds_phy.h
index 3b88259d7c87..9ba09bb0c13d 100644
--- a/drivers/scsi/isci/core/scic_sds_phy.h
+++ b/drivers/scsi/isci/core/scic_sds_phy.h
@@ -146,11 +146,6 @@ enum SCIC_SDS_PHY_STARTING_SUBSTATES {
* Exit state for this state machine
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL,
-
- /**
- * Maximum number of substates for the STARTING state machine
- */
- SCIC_SDS_PHY_STARTING_MAX_SUBSTATES
};
struct scic_sds_port;
@@ -248,7 +243,7 @@ struct scic_sds_phy {
*/
void *sata_timeout_timer;
- struct scic_sds_phy_state_handler *state_handlers;
+ const struct scic_sds_phy_state_handler *state_handlers;
struct sci_base_state_machine starting_substate_machine;
@@ -260,9 +255,9 @@ 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 *);
+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 -
@@ -278,25 +273,24 @@ struct scic_sds_phy_state_handler {
/**
* The state handler for unsolicited frames received from the SCU hardware.
*/
- SCIC_SDS_PHY_FRAME_HANDLER_T frame_handler;
+ scic_sds_phy_frame_handler_t frame_handler;
/**
* The state handler for events received from the SCU hardware.
*/
- SCIC_SDS_PHY_EVENT_HANDLER_T event_handler;
+ scic_sds_phy_event_handler_t event_handler;
/**
* The state handler for staggered spinup.
*/
- SCIC_SDS_PHY_POWER_HANDLER_T consume_power_handler;
+ scic_sds_phy_power_handler_t consume_power_handler;
};
-extern struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[];
+extern const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[];
extern const struct sci_base_state scic_sds_phy_state_table[];
extern const struct sci_base_state scic_sds_phy_starting_substates[];
-extern struct scic_sds_phy_state_handler
- scic_sds_phy_starting_substate_handler_table[];
+extern const struct scic_sds_phy_state_handler scic_sds_phy_starting_substate_handler_table[];
/**