}
/**
- * This method will process the event code received.
- * @sci_phy:
- * @event_code:
- *
- * enum sci_status
- */
-enum sci_status scic_sds_phy_event_handler(
- struct scic_sds_phy *sci_phy,
- u32 event_code)
-{
- return sci_phy->state_handlers->event_handler(sci_phy, event_code);
-}
-
-enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy,
- u32 frame_index)
-{
- enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id;
- struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller;
- enum sci_status result;
-
- switch (state) {
- case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF: {
- u32 *frame_words;
- struct sas_identify_frame iaf;
- struct isci_phy *iphy = sci_phy_to_iphy(sci_phy);
-
- result = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control,
- frame_index,
- (void **)&frame_words);
-
- if (result != SCI_SUCCESS)
- return result;
-
- sci_swab32_cpy(&iaf, frame_words, sizeof(iaf) / sizeof(u32));
- if (iaf.frame_type == 0) {
- u32 state;
-
- memcpy(&iphy->frame_rcvd.iaf, &iaf, sizeof(iaf));
- if (iaf.smp_tport) {
- /* We got the IAF for an expander PHY go to the final
- * state since there are no power requirements for
- * expander phys.
- */
- state = SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL;
- } else {
- /* We got the IAF we can now go to the await spinup
- * semaphore state
- */
- state = SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER;
- }
- sci_base_state_machine_change_state(&sci_phy->state_machine,
- state);
- result = SCI_SUCCESS;
- } else
- dev_warn(sciphy_to_dev(sci_phy),
- "%s: PHY starting substate machine received "
- "unexpected frame id %x\n",
- __func__, frame_index);
-
- scic_sds_controller_release_frame(scic, frame_index);
- return result;
- }
- case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF: {
- struct dev_to_host_fis *frame_header;
- u32 *fis_frame_data;
- struct isci_phy *iphy = sci_phy_to_iphy(sci_phy);
-
- result = scic_sds_unsolicited_frame_control_get_header(
- &(scic_sds_phy_get_controller(sci_phy)->uf_control),
- frame_index,
- (void **)&frame_header);
-
- if (result != SCI_SUCCESS)
- return result;
-
- if ((frame_header->fis_type == FIS_REGD2H) &&
- !(frame_header->status & ATA_BUSY)) {
- scic_sds_unsolicited_frame_control_get_buffer(&scic->uf_control,
- frame_index,
- (void **)&fis_frame_data);
-
- scic_sds_controller_copy_sata_response(&iphy->frame_rcvd.fis,
- frame_header,
- fis_frame_data);
-
- /* got IAF we can now go to the await spinup semaphore state */
- sci_base_state_machine_change_state(&sci_phy->state_machine,
- SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL);
-
- result = SCI_SUCCESS;
- } else
- dev_warn(sciphy_to_dev(sci_phy),
- "%s: PHY starting substate machine received "
- "unexpected frame id %x\n",
- __func__, frame_index);
-
- /* Regardless of the result we are done with this frame with it */
- scic_sds_controller_release_frame(scic, frame_index);
-
- return result;
- }
- default:
- dev_dbg(sciphy_to_dev(sci_phy),
- "%s: in wrong state: %d\n", __func__, state);
- return SCI_FAILURE_INVALID_STATE;
- }
-
-}
-
-/**
* This method will give the phy permission to consume power
* @sci_phy:
*
next_state);
}
-static void scic_sds_phy_restart_starting_state(
- struct scic_sds_phy *sci_phy)
-{
- /* Re-enter the base state machine starting state */
- sci_base_state_machine_change_state(&sci_phy->state_machine,
- SCI_BASE_PHY_STATE_STARTING);
-}
-
-/**
- *
- * @phy: This struct scic_sds_phy object which has received an event.
- * @event_code: This is the event code which the phy object is to decode.
- *
- * This method is called when an event notification is received for the phy
- * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SPEED_EN. -
- * decode the event - sas phy detected causes a state transition to the wait
- * for speed event notification. - any other events log a warning message and
- * set a failure status enum sci_status SCI_SUCCESS on any valid event notification
- * SCI_FAILURE on any unexpected event notifation
- */
-static enum sci_status scic_sds_phy_starting_substate_await_ossp_event_handler(
- struct scic_sds_phy *sci_phy,
- u32 event_code)
-{
- u32 result = SCI_SUCCESS;
-
- switch (scu_get_event_code(event_code)) {
- case SCU_EVENT_SAS_PHY_DETECTED:
- scic_sds_phy_start_sas_link_training(sci_phy);
- sci_phy->is_in_link_training = true;
- break;
-
- case SCU_EVENT_SATA_SPINUP_HOLD:
- scic_sds_phy_start_sata_link_training(sci_phy);
- sci_phy->is_in_link_training = true;
- break;
-
- default:
- dev_dbg(sciphy_to_dev(sci_phy),
- "%s: PHY starting substate machine received "
- "unexpected event_code %x\n",
- __func__,
- event_code);
-
- result = SCI_FAILURE;
- break;
- }
-
- return result;
-}
-
-/**
- *
- * @phy: This struct scic_sds_phy object which has received an event.
- * @event_code: This is the event code which the phy object is to decode.
- *
- * This method is called when an event notification is received for the phy
- * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SPEED_EN. -
- * decode the event - sas phy detected returns us back to this state. - speed
- * event detected causes a state transition to the wait for iaf. - identify
- * timeout is an un-expected event and the state machine is restarted. - link
- * failure events restart the starting state machine - any other events log a
- * warning message and set a failure status enum sci_status SCI_SUCCESS on any valid
- * event notification SCI_FAILURE on any unexpected event notifation
- */
-static enum sci_status scic_sds_phy_starting_substate_await_sas_phy_speed_event_handler(
- struct scic_sds_phy *sci_phy,
- u32 event_code)
-{
- u32 result = SCI_SUCCESS;
-
- switch (scu_get_event_code(event_code)) {
- case SCU_EVENT_SAS_PHY_DETECTED:
- /*
- * Why is this being reported again by the controller?
- * We would re-enter this state so just stay here */
- break;
-
- case SCU_EVENT_SAS_15:
- case SCU_EVENT_SAS_15_SSC:
- scic_sds_phy_complete_link_training(
- sci_phy,
- SAS_LINK_RATE_1_5_GBPS,
- SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF);
- break;
-
- case SCU_EVENT_SAS_30:
- case SCU_EVENT_SAS_30_SSC:
- scic_sds_phy_complete_link_training(
- sci_phy,
- SAS_LINK_RATE_3_0_GBPS,
- SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF);
- break;
-
- case SCU_EVENT_SAS_60:
- case SCU_EVENT_SAS_60_SSC:
- scic_sds_phy_complete_link_training(
- sci_phy,
- SAS_LINK_RATE_6_0_GBPS,
- SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF);
- break;
-
- case SCU_EVENT_SATA_SPINUP_HOLD:
- /*
- * We were doing SAS PHY link training and received a SATA PHY event
- * continue OOB/SN as if this were a SATA PHY */
- scic_sds_phy_start_sata_link_training(sci_phy);
- break;
-
- case SCU_EVENT_LINK_FAILURE:
- /* Link failure change state back to the starting state */
- scic_sds_phy_restart_starting_state(sci_phy);
- break;
-
- default:
- dev_warn(sciphy_to_dev(sci_phy),
- "%s: PHY starting substate machine received "
- "unexpected event_code %x\n",
- __func__,
- event_code);
-
- result = SCI_FAILURE;
- break;
- }
-
- return result;
-}
-
-/**
- *
- * @phy: This struct scic_sds_phy object which has received an event.
- * @event_code: This is the event code which the phy object is to decode.
- *
- * This method is called when an event notification is received for the phy
- * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF. -
- * decode the event - sas phy detected event backs up the state machine to the
- * await speed notification. - identify timeout is an un-expected event and the
- * state machine is restarted. - link failure events restart the starting state
- * machine - any other events log a warning message and set a failure status
- * enum sci_status SCI_SUCCESS on any valid event notification SCI_FAILURE on any
- * unexpected event notifation
- */
-static enum sci_status scic_sds_phy_starting_substate_await_iaf_uf_event_handler(
- struct scic_sds_phy *sci_phy,
- u32 event_code)
-{
- u32 result = SCI_SUCCESS;
-
- switch (scu_get_event_code(event_code)) {
- case SCU_EVENT_SAS_PHY_DETECTED:
- /* Backup the state machine */
- scic_sds_phy_start_sas_link_training(sci_phy);
- break;
-
- case SCU_EVENT_SATA_SPINUP_HOLD:
- /*
- * We were doing SAS PHY link training and received a SATA PHY event
- * continue OOB/SN as if this were a SATA PHY */
- scic_sds_phy_start_sata_link_training(sci_phy);
- break;
-
- case SCU_EVENT_RECEIVED_IDENTIFY_TIMEOUT:
- case SCU_EVENT_LINK_FAILURE:
- case SCU_EVENT_HARD_RESET_RECEIVED:
- /* Start the oob/sn state machine over again */
- scic_sds_phy_restart_starting_state(sci_phy);
- break;
-
- default:
- dev_warn(sciphy_to_dev(sci_phy),
- "%s: PHY starting substate machine received "
- "unexpected event_code %x\n",
- __func__,
- event_code);
-
- result = SCI_FAILURE;
- break;
- }
-
- return result;
-}
-
-/**
- *
- * @phy: This struct scic_sds_phy object which has received an event.
- * @event_code: This is the event code which the phy object is to decode.
- *
- * This method is called when an event notification is received for the phy
- * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_POWER. -
- * decode the event - link failure events restart the starting state machine -
- * any other events log a warning message and set a failure status enum sci_status
- * SCI_SUCCESS on a link failure event SCI_FAILURE on any unexpected event
- * notifation
- */
-static enum sci_status scic_sds_phy_starting_substate_await_sas_power_event_handler(
- struct scic_sds_phy *sci_phy,
- u32 event_code)
-{
- u32 result = SCI_SUCCESS;
-
- switch (scu_get_event_code(event_code)) {
- case SCU_EVENT_LINK_FAILURE:
- /* Link failure change state back to the starting state */
- scic_sds_phy_restart_starting_state(sci_phy);
- break;
-
- default:
- dev_warn(sciphy_to_dev(sci_phy),
- "%s: PHY starting substate machine received unexpected "
- "event_code %x\n",
- __func__,
- event_code);
-
- result = SCI_FAILURE;
- break;
- }
-
- return result;
-}
-
-/**
- *
- * @phy: This struct scic_sds_phy object which has received an event.
- * @event_code: This is the event code which the phy object is to decode.
- *
- * This method is called when an event notification is received for the phy
- * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER. -
- * decode the event - link failure events restart the starting state machine -
- * sata spinup hold events are ignored since they are expected - any other
- * events log a warning message and set a failure status enum sci_status SCI_SUCCESS
- * on a link failure event SCI_FAILURE on any unexpected event notifation
- */
-static enum sci_status scic_sds_phy_starting_substate_await_sata_power_event_handler(
- struct scic_sds_phy *sci_phy,
- u32 event_code)
-{
- u32 result = SCI_SUCCESS;
-
- switch (scu_get_event_code(event_code)) {
- case SCU_EVENT_LINK_FAILURE:
- /* Link failure change state back to the starting state */
- scic_sds_phy_restart_starting_state(sci_phy);
- break;
-
- case SCU_EVENT_SATA_SPINUP_HOLD:
- /* These events are received every 10ms and are expected while in this state */
- break;
-
- case SCU_EVENT_SAS_PHY_DETECTED:
- /*
- * There has been a change in the phy type before OOB/SN for the
- * SATA finished start down the SAS link traning path. */
- scic_sds_phy_start_sas_link_training(sci_phy);
- break;
-
- default:
- dev_warn(sciphy_to_dev(sci_phy),
- "%s: PHY starting substate machine received "
- "unexpected event_code %x\n",
- __func__,
- event_code);
-
- result = SCI_FAILURE;
- break;
- }
-
- return result;
-}
-
-/**
- * scic_sds_phy_starting_substate_await_sata_phy_event_handler -
- * @phy: This struct scic_sds_phy object which has received an event.
- * @event_code: This is the event code which the phy object is to decode.
- *
- * This method is called when an event notification is received for the phy
- * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN. -
- * decode the event - link failure events restart the starting state machine -
- * sata spinup hold events are ignored since they are expected - sata phy
- * detected event change to the wait speed event - any other events log a
- * warning message and set a failure status enum sci_status SCI_SUCCESS on a link
- * failure event SCI_FAILURE on any unexpected event notifation
- */
-static enum sci_status scic_sds_phy_starting_substate_await_sata_phy_event_handler(
- struct scic_sds_phy *sci_phy, u32 event_code)
-{
- u32 result = SCI_SUCCESS;
-
- switch (scu_get_event_code(event_code)) {
- case SCU_EVENT_LINK_FAILURE:
- /* Link failure change state back to the starting state */
- scic_sds_phy_restart_starting_state(sci_phy);
- break;
-
- case SCU_EVENT_SATA_SPINUP_HOLD:
- /* These events might be received since we dont know how many may be in
- * the completion queue while waiting for power
- */
- break;
-
- case SCU_EVENT_SATA_PHY_DETECTED:
- sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA;
-
- /* We have received the SATA PHY notification change state */
- sci_base_state_machine_change_state(&sci_phy->state_machine,
- SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN);
- break;
-
- case SCU_EVENT_SAS_PHY_DETECTED:
- /* There has been a change in the phy type before OOB/SN for the
- * SATA finished start down the SAS link traning path.
- */
- scic_sds_phy_start_sas_link_training(sci_phy);
- break;
-
- default:
- dev_warn(sciphy_to_dev(sci_phy),
- "%s: PHY starting substate machine received "
- "unexpected event_code %x\n",
- __func__,
- event_code);
-
- result = SCI_FAILURE;
- break;
- }
-
- return result;
-}
-
-/**
- *
- * @phy: This struct scic_sds_phy object which has received an event.
- * @event_code: This is the event code which the phy object is to decode.
- *
- * This method is called when an event notification is received for the phy
- * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN.
- * - decode the event - sata phy detected returns us back to this state. -
- * speed event detected causes a state transition to the wait for signature. -
- * link failure events restart the starting state machine - any other events
- * log a warning message and set a failure status enum sci_status SCI_SUCCESS on any
- * valid event notification SCI_FAILURE on any unexpected event notifation
- */
-static enum sci_status scic_sds_phy_starting_substate_await_sata_speed_event_handler(
- struct scic_sds_phy *sci_phy,
- u32 event_code)
-{
- u32 result = SCI_SUCCESS;
-
- switch (scu_get_event_code(event_code)) {
- case SCU_EVENT_SATA_PHY_DETECTED:
- /*
- * The hardware reports multiple SATA PHY detected events
- * ignore the extras */
- break;
-
- case SCU_EVENT_SATA_15:
- case SCU_EVENT_SATA_15_SSC:
- scic_sds_phy_complete_link_training(
- sci_phy,
- SAS_LINK_RATE_1_5_GBPS,
- SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF);
- break;
-
- case SCU_EVENT_SATA_30:
- case SCU_EVENT_SATA_30_SSC:
- scic_sds_phy_complete_link_training(
- sci_phy,
- SAS_LINK_RATE_3_0_GBPS,
- SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF);
- break;
-
- case SCU_EVENT_SATA_60:
- case SCU_EVENT_SATA_60_SSC:
- scic_sds_phy_complete_link_training(
- sci_phy,
- SAS_LINK_RATE_6_0_GBPS,
- SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF);
- break;
-
- case SCU_EVENT_LINK_FAILURE:
- /* Link failure change state back to the starting state */
- scic_sds_phy_restart_starting_state(sci_phy);
- break;
-
- case SCU_EVENT_SAS_PHY_DETECTED:
- /*
- * There has been a change in the phy type before OOB/SN for the
- * SATA finished start down the SAS link traning path. */
- scic_sds_phy_start_sas_link_training(sci_phy);
- break;
-
- default:
- dev_warn(sciphy_to_dev(sci_phy),
- "%s: PHY starting substate machine received "
- "unexpected event_code %x\n",
- __func__,
- event_code);
-
- result = SCI_FAILURE;
- break;
- }
-
- return result;
-}
-
-/**
- * scic_sds_phy_starting_substate_await_sig_fis_event_handler -
- * @phy: This struct scic_sds_phy object which has received an event.
- * @event_code: This is the event code which the phy object is to decode.
- *
- * This method is called when an event notification is received for the phy
- * object when in the state SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF. -
- * decode the event - sas phy detected event backs up the state machine to the
- * await speed notification. - identify timeout is an un-expected event and the
- * state machine is restarted. - link failure events restart the starting state
- * machine - any other events log a warning message and set a failure status
- * enum sci_status SCI_SUCCESS on any valid event notification SCI_FAILURE on any
- * unexpected event notifation
- */
-static enum sci_status scic_sds_phy_starting_substate_await_sig_fis_event_handler(
- struct scic_sds_phy *sci_phy, u32 event_code)
-{
- u32 result = SCI_SUCCESS;
-
- switch (scu_get_event_code(event_code)) {
- case SCU_EVENT_SATA_PHY_DETECTED:
- /* Backup the state machine */
- sci_base_state_machine_change_state(&sci_phy->state_machine,
- SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN);
- break;
-
- case SCU_EVENT_LINK_FAILURE:
- /* Link failure change state back to the starting state */
- scic_sds_phy_restart_starting_state(sci_phy);
- break;
-
- default:
- dev_warn(sciphy_to_dev(sci_phy),
- "%s: PHY starting substate machine received "
- "unexpected event_code %x\n",
- __func__,
- event_code);
-
- result = SCI_FAILURE;
- break;
- }
-
- return result;
-}
-
/*
* 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
}
static enum sci_status
-scic_sds_phy_default_event_handler(struct scic_sds_phy *sci_phy,
- u32 event_code)
-{
- return default_phy_handler(sci_phy, __func__);
-}
-
-static enum sci_status
scic_sds_phy_default_consume_power_handler(struct scic_sds_phy *sci_phy)
{
return default_phy_handler(sci_phy, __func__);
}
-/**
- * scic_sds_phy_ready_state_event_handler -
- * @phy: This is the struct scic_sds_phy object which has received the event.
- *
- * This method request the struct scic_sds_phy handle the received event. The only
- * event that we are interested in while in the ready state is the link failure
- * event. - decoded event is a link failure - transition the struct scic_sds_phy back
- * to the SCI_BASE_PHY_STATE_STARTING state. - any other event received will
- * report a warning message enum sci_status SCI_SUCCESS if the event received is a
- * link failure SCI_FAILURE_INVALID_STATE for any other event received.
- */
-static enum sci_status scic_sds_phy_ready_state_event_handler(struct scic_sds_phy *sci_phy,
- u32 event_code)
+
+enum sci_status scic_sds_phy_event_handler(struct scic_sds_phy *sci_phy,
+ u32 event_code)
{
- enum sci_status result = SCI_FAILURE;
+ enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id;
- switch (scu_get_event_code(event_code)) {
- case SCU_EVENT_LINK_FAILURE:
- /* Link failure change state back to the starting state */
- sci_base_state_machine_change_state(&sci_phy->state_machine,
- SCI_BASE_PHY_STATE_STARTING);
- result = SCI_SUCCESS;
- break;
+ switch (state) {
+ case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN:
+ switch (scu_get_event_code(event_code)) {
+ case SCU_EVENT_SAS_PHY_DETECTED:
+ scic_sds_phy_start_sas_link_training(sci_phy);
+ sci_phy->is_in_link_training = true;
+ break;
+ case SCU_EVENT_SATA_SPINUP_HOLD:
+ scic_sds_phy_start_sata_link_training(sci_phy);
+ sci_phy->is_in_link_training = true;
+ break;
+ default:
+ dev_dbg(sciphy_to_dev(sci_phy),
+ "%s: PHY starting substate machine received "
+ "unexpected event_code %x\n",
+ __func__,
+ event_code);
+ return SCI_FAILURE;
+ }
+ return SCI_SUCCESS;
+ case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN:
+ switch (scu_get_event_code(event_code)) {
+ case SCU_EVENT_SAS_PHY_DETECTED:
+ /*
+ * Why is this being reported again by the controller?
+ * We would re-enter this state so just stay here */
+ break;
+ case SCU_EVENT_SAS_15:
+ case SCU_EVENT_SAS_15_SSC:
+ scic_sds_phy_complete_link_training(
+ sci_phy,
+ SAS_LINK_RATE_1_5_GBPS,
+ SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF);
+ break;
+ case SCU_EVENT_SAS_30:
+ case SCU_EVENT_SAS_30_SSC:
+ scic_sds_phy_complete_link_training(
+ sci_phy,
+ SAS_LINK_RATE_3_0_GBPS,
+ SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF);
+ break;
+ case SCU_EVENT_SAS_60:
+ case SCU_EVENT_SAS_60_SSC:
+ scic_sds_phy_complete_link_training(
+ sci_phy,
+ SAS_LINK_RATE_6_0_GBPS,
+ SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF);
+ break;
+ case SCU_EVENT_SATA_SPINUP_HOLD:
+ /*
+ * We were doing SAS PHY link training and received a SATA PHY event
+ * continue OOB/SN as if this were a SATA PHY */
+ scic_sds_phy_start_sata_link_training(sci_phy);
+ break;
+ case SCU_EVENT_LINK_FAILURE:
+ /* Link failure change state back to the starting state */
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ SCI_BASE_PHY_STATE_STARTING);
+ break;
+ default:
+ dev_warn(sciphy_to_dev(sci_phy),
+ "%s: PHY starting substate machine received "
+ "unexpected event_code %x\n",
+ __func__, event_code);
+
+ return SCI_FAILURE;
+ break;
+ }
+ return SCI_SUCCESS;
+ case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF:
+ switch (scu_get_event_code(event_code)) {
+ case SCU_EVENT_SAS_PHY_DETECTED:
+ /* Backup the state machine */
+ scic_sds_phy_start_sas_link_training(sci_phy);
+ break;
+ case SCU_EVENT_SATA_SPINUP_HOLD:
+ /* We were doing SAS PHY link training and received a
+ * SATA PHY event continue OOB/SN as if this were a
+ * SATA PHY
+ */
+ scic_sds_phy_start_sata_link_training(sci_phy);
+ break;
+ case SCU_EVENT_RECEIVED_IDENTIFY_TIMEOUT:
+ case SCU_EVENT_LINK_FAILURE:
+ case SCU_EVENT_HARD_RESET_RECEIVED:
+ /* Start the oob/sn state machine over again */
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ SCI_BASE_PHY_STATE_STARTING);
+ break;
+ default:
+ dev_warn(sciphy_to_dev(sci_phy),
+ "%s: PHY starting substate machine received "
+ "unexpected event_code %x\n",
+ __func__, event_code);
+ return SCI_FAILURE;
+ }
+ return SCI_SUCCESS;
+ case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER:
+ switch (scu_get_event_code(event_code)) {
+ case SCU_EVENT_LINK_FAILURE:
+ /* Link failure change state back to the starting state */
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ SCI_BASE_PHY_STATE_STARTING);
+ break;
+ default:
+ dev_warn(sciphy_to_dev(sci_phy),
+ "%s: PHY starting substate machine received unexpected "
+ "event_code %x\n",
+ __func__,
+ event_code);
+ return SCI_FAILURE;
+ }
+ return SCI_SUCCESS;
+ case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER:
+ switch (scu_get_event_code(event_code)) {
+ case SCU_EVENT_LINK_FAILURE:
+ /* Link failure change state back to the starting state */
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ SCI_BASE_PHY_STATE_STARTING);
+ break;
+ case SCU_EVENT_SATA_SPINUP_HOLD:
+ /* These events are received every 10ms and are
+ * expected while in this state
+ */
+ break;
+
+ case SCU_EVENT_SAS_PHY_DETECTED:
+ /* There has been a change in the phy type before OOB/SN for the
+ * SATA finished start down the SAS link traning path.
+ */
+ scic_sds_phy_start_sas_link_training(sci_phy);
+ break;
+
+ default:
+ dev_warn(sciphy_to_dev(sci_phy),
+ "%s: PHY starting substate machine received "
+ "unexpected event_code %x\n",
+ __func__, event_code);
- case SCU_EVENT_BROADCAST_CHANGE:
- /* Broadcast change received. Notify the port. */
- if (scic_sds_phy_get_port(sci_phy) != NULL)
- scic_sds_port_broadcast_change_received(sci_phy->owning_port, sci_phy);
- else
- sci_phy->bcn_received_while_port_unassigned = true;
- break;
+ return SCI_FAILURE;
+ }
+ return SCI_SUCCESS;
+ case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN:
+ switch (scu_get_event_code(event_code)) {
+ case SCU_EVENT_LINK_FAILURE:
+ /* Link failure change state back to the starting state */
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ SCI_BASE_PHY_STATE_STARTING);
+ break;
+ case SCU_EVENT_SATA_SPINUP_HOLD:
+ /* These events might be received since we dont know how many may be in
+ * the completion queue while waiting for power
+ */
+ break;
+ case SCU_EVENT_SATA_PHY_DETECTED:
+ sci_phy->protocol = SCIC_SDS_PHY_PROTOCOL_SATA;
+
+ /* We have received the SATA PHY notification change state */
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN);
+ break;
+ case SCU_EVENT_SAS_PHY_DETECTED:
+ /* There has been a change in the phy type before OOB/SN for the
+ * SATA finished start down the SAS link traning path.
+ */
+ scic_sds_phy_start_sas_link_training(sci_phy);
+ break;
+ default:
+ dev_warn(sciphy_to_dev(sci_phy),
+ "%s: PHY starting substate machine received "
+ "unexpected event_code %x\n",
+ __func__,
+ event_code);
- default:
- dev_warn(sciphy_to_dev(sci_phy),
- "%sP SCIC PHY 0x%p ready state machine received "
- "unexpected event_code %x\n",
- __func__, sci_phy, event_code);
+ return SCI_FAILURE;;
+ }
+ return SCI_SUCCESS;
+ case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN:
+ switch (scu_get_event_code(event_code)) {
+ case SCU_EVENT_SATA_PHY_DETECTED:
+ /*
+ * The hardware reports multiple SATA PHY detected events
+ * ignore the extras */
+ break;
+ case SCU_EVENT_SATA_15:
+ case SCU_EVENT_SATA_15_SSC:
+ scic_sds_phy_complete_link_training(
+ sci_phy,
+ SAS_LINK_RATE_1_5_GBPS,
+ SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF);
+ break;
+ case SCU_EVENT_SATA_30:
+ case SCU_EVENT_SATA_30_SSC:
+ scic_sds_phy_complete_link_training(
+ sci_phy,
+ SAS_LINK_RATE_3_0_GBPS,
+ SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF);
+ break;
+ case SCU_EVENT_SATA_60:
+ case SCU_EVENT_SATA_60_SSC:
+ scic_sds_phy_complete_link_training(
+ sci_phy,
+ SAS_LINK_RATE_6_0_GBPS,
+ SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF);
+ break;
+ case SCU_EVENT_LINK_FAILURE:
+ /* Link failure change state back to the starting state */
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ SCI_BASE_PHY_STATE_STARTING);
+ break;
+ case SCU_EVENT_SAS_PHY_DETECTED:
+ /*
+ * There has been a change in the phy type before OOB/SN for the
+ * SATA finished start down the SAS link traning path. */
+ scic_sds_phy_start_sas_link_training(sci_phy);
+ break;
+ default:
+ dev_warn(sciphy_to_dev(sci_phy),
+ "%s: PHY starting substate machine received "
+ "unexpected event_code %x\n",
+ __func__, event_code);
- result = SCI_FAILURE_INVALID_STATE;
- break;
- }
+ return SCI_FAILURE;
+ }
+
+ return SCI_SUCCESS;
+ case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF:
+ switch (scu_get_event_code(event_code)) {
+ case SCU_EVENT_SATA_PHY_DETECTED:
+ /* Backup the state machine */
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN);
+ break;
+
+ case SCU_EVENT_LINK_FAILURE:
+ /* Link failure change state back to the starting state */
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ SCI_BASE_PHY_STATE_STARTING);
+ break;
- return result;
+ default:
+ dev_warn(sciphy_to_dev(sci_phy),
+ "%s: PHY starting substate machine received "
+ "unexpected event_code %x\n",
+ __func__,
+ event_code);
+
+ return SCI_FAILURE;
+ }
+ return SCI_SUCCESS;
+ case SCI_BASE_PHY_STATE_READY:
+ switch (scu_get_event_code(event_code)) {
+ case SCU_EVENT_LINK_FAILURE:
+ /* Link failure change state back to the starting state */
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ SCI_BASE_PHY_STATE_STARTING);
+ break;
+ case SCU_EVENT_BROADCAST_CHANGE:
+ /* Broadcast change received. Notify the port. */
+ if (scic_sds_phy_get_port(sci_phy) != NULL)
+ scic_sds_port_broadcast_change_received(sci_phy->owning_port, sci_phy);
+ else
+ sci_phy->bcn_received_while_port_unassigned = true;
+ break;
+ default:
+ dev_warn(sciphy_to_dev(sci_phy),
+ "%sP SCIC PHY 0x%p ready state machine received "
+ "unexpected event_code %x\n",
+ __func__, sci_phy, event_code);
+ return SCI_FAILURE_INVALID_STATE;
+ }
+ return SCI_SUCCESS;
+ case SCI_BASE_PHY_STATE_RESETTING:
+ switch (scu_get_event_code(event_code)) {
+ case SCU_EVENT_HARD_RESET_TRANSMITTED:
+ /* Link failure change state back to the starting state */
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ SCI_BASE_PHY_STATE_STARTING);
+ break;
+ default:
+ dev_warn(sciphy_to_dev(sci_phy),
+ "%s: SCIC PHY 0x%p resetting state machine received "
+ "unexpected event_code %x\n",
+ __func__, sci_phy, event_code);
+
+ return SCI_FAILURE_INVALID_STATE;
+ break;
+ }
+ return SCI_SUCCESS;
+ default:
+ dev_dbg(sciphy_to_dev(sci_phy),
+ "%s: in wrong state: %d\n", __func__, state);
+ return SCI_FAILURE_INVALID_STATE;
+ }
}
-static enum sci_status scic_sds_phy_resetting_state_event_handler(struct scic_sds_phy *sci_phy,
- u32 event_code)
+enum sci_status scic_sds_phy_frame_handler(struct scic_sds_phy *sci_phy,
+ u32 frame_index)
{
- enum sci_status result = SCI_FAILURE;
+ enum scic_sds_phy_states state = sci_phy->state_machine.current_state_id;
+ struct scic_sds_controller *scic = sci_phy->owning_port->owning_controller;
+ enum sci_status result;
- switch (scu_get_event_code(event_code)) {
- case SCU_EVENT_HARD_RESET_TRANSMITTED:
- /* Link failure change state back to the starting state */
- sci_base_state_machine_change_state(&sci_phy->state_machine,
- SCI_BASE_PHY_STATE_STARTING);
- result = SCI_SUCCESS;
- break;
+ switch (state) {
+ case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF: {
+ u32 *frame_words;
+ struct sas_identify_frame iaf;
+ struct isci_phy *iphy = sci_phy_to_iphy(sci_phy);
- default:
- dev_warn(sciphy_to_dev(sci_phy),
- "%s: SCIC PHY 0x%p resetting state machine received "
- "unexpected event_code %x\n",
- __func__, sci_phy, event_code);
+ result = scic_sds_unsolicited_frame_control_get_header(&scic->uf_control,
+ frame_index,
+ (void **)&frame_words);
- result = SCI_FAILURE_INVALID_STATE;
- break;
+ if (result != SCI_SUCCESS)
+ return result;
+
+ sci_swab32_cpy(&iaf, frame_words, sizeof(iaf) / sizeof(u32));
+ if (iaf.frame_type == 0) {
+ u32 state;
+
+ memcpy(&iphy->frame_rcvd.iaf, &iaf, sizeof(iaf));
+ if (iaf.smp_tport) {
+ /* We got the IAF for an expander PHY go to the final
+ * state since there are no power requirements for
+ * expander phys.
+ */
+ state = SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL;
+ } else {
+ /* We got the IAF we can now go to the await spinup
+ * semaphore state
+ */
+ state = SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER;
+ }
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ state);
+ result = SCI_SUCCESS;
+ } else
+ dev_warn(sciphy_to_dev(sci_phy),
+ "%s: PHY starting substate machine received "
+ "unexpected frame id %x\n",
+ __func__, frame_index);
+
+ scic_sds_controller_release_frame(scic, frame_index);
+ return result;
}
+ case SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF: {
+ struct dev_to_host_fis *frame_header;
+ u32 *fis_frame_data;
+ struct isci_phy *iphy = sci_phy_to_iphy(sci_phy);
+
+ result = scic_sds_unsolicited_frame_control_get_header(
+ &(scic_sds_phy_get_controller(sci_phy)->uf_control),
+ frame_index,
+ (void **)&frame_header);
+
+ if (result != SCI_SUCCESS)
+ return result;
- return result;
+ if ((frame_header->fis_type == FIS_REGD2H) &&
+ !(frame_header->status & ATA_BUSY)) {
+ scic_sds_unsolicited_frame_control_get_buffer(&scic->uf_control,
+ frame_index,
+ (void **)&fis_frame_data);
+
+ scic_sds_controller_copy_sata_response(&iphy->frame_rcvd.fis,
+ frame_header,
+ fis_frame_data);
+
+ /* got IAF we can now go to the await spinup semaphore state */
+ sci_base_state_machine_change_state(&sci_phy->state_machine,
+ SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL);
+
+ result = SCI_SUCCESS;
+ } else
+ dev_warn(sciphy_to_dev(sci_phy),
+ "%s: PHY starting substate machine received "
+ "unexpected frame id %x\n",
+ __func__, frame_index);
+
+ /* Regardless of the result we are done with this frame with it */
+ scic_sds_controller_release_frame(scic, frame_index);
+
+ return result;
+ }
+ default:
+ dev_dbg(sciphy_to_dev(sci_phy),
+ "%s: in wrong state: %d\n", __func__, state);
+ return SCI_FAILURE_INVALID_STATE;
+ }
+
}
+
+
/* --------------------------------------------------------------------------- */
static const struct scic_sds_phy_state_handler scic_sds_phy_state_handler_table[] = {
[SCI_BASE_PHY_STATE_INITIAL] = {
- .event_handler = scic_sds_phy_default_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_STOPPED] = {
- .event_handler = scic_sds_phy_default_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_STARTING] = {
- .event_handler = scic_sds_phy_default_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL] = {
- .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] = {
- .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] = {
- .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] = {
- .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] = {
- .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] = {
- .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] = {
- .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] = {
- .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] = {
- .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] = {
- .event_handler = scic_sds_phy_default_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_READY] = {
- .event_handler = scic_sds_phy_ready_state_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_RESETTING] = {
- .event_handler = scic_sds_phy_resetting_state_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
},
[SCI_BASE_PHY_STATE_FINAL] = {
- .event_handler = scic_sds_phy_default_event_handler,
.consume_power_handler = scic_sds_phy_default_consume_power_handler
}
};
projects / platform / kernel / linux-3.10.git / commitdiff