isci: convert phy_startup_timer to sci_timer
Edmund Nadolski [Fri, 20 May 2011 03:26:02 +0000 (20:26 -0700)]
Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

drivers/scsi/isci/host.c
drivers/scsi/isci/host.h

index 156b375..e79f35d 100644 (file)
@@ -917,21 +917,6 @@ static void scic_sds_controller_transition_to_ready(
        }
 }
 
-static void scic_sds_controller_phy_timer_stop(struct scic_sds_controller *scic)
-{
-       isci_timer_stop(scic->phy_startup_timer);
-
-       scic->phy_startup_timer_pending = false;
-}
-
-static void scic_sds_controller_phy_timer_start(struct scic_sds_controller *scic)
-{
-       isci_timer_start(scic->phy_startup_timer,
-                        SCIC_SDS_CONTROLLER_PHY_START_TIMEOUT);
-
-       scic->phy_startup_timer_pending = true;
-}
-
 static bool is_phy_starting(struct scic_sds_phy *sci_phy)
 {
        enum scic_sds_phy_states state;
@@ -1008,7 +993,8 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro
                 * Inform the SCI Core user and transition to the READY state. */
                if (is_controller_start_complete == true) {
                        scic_sds_controller_transition_to_ready(scic, SCI_SUCCESS);
-                       scic_sds_controller_phy_timer_stop(scic);
+                       sci_del_timer(&scic->phy_timer);
+                       scic->phy_startup_timer_pending = false;
                }
        } else {
                sci_phy = &ihost->phys[scic->next_phy_to_start].sci;
@@ -1033,7 +1019,9 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro
                status = scic_sds_phy_start(sci_phy);
 
                if (status == SCI_SUCCESS) {
-                       scic_sds_controller_phy_timer_start(scic);
+                       sci_mod_timer(&scic->phy_timer,
+                                     SCIC_SDS_CONTROLLER_PHY_START_TIMEOUT);
+                       scic->phy_startup_timer_pending = true;
                } else {
                        dev_warn(scic_to_dev(scic),
                                 "%s: Controller stop operation failed "
@@ -1050,15 +1038,27 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro
        return status;
 }
 
-static void scic_sds_controller_phy_startup_timeout_handler(void *_scic)
+static void phy_startup_timeout(unsigned long data)
 {
-       struct scic_sds_controller *scic = _scic;
+       struct sci_timer *tmr = (struct sci_timer *)data;
+       struct scic_sds_controller *scic = container_of(tmr, typeof(*scic), phy_timer);
+       struct isci_host *ihost = scic_to_ihost(scic);
+       unsigned long flags;
        enum sci_status status;
 
+       spin_lock_irqsave(&ihost->scic_lock, flags);
+
+       if (tmr->cancel)
+               goto done;
+
        scic->phy_startup_timer_pending = false;
-       status = SCI_FAILURE;
-       while (status != SCI_SUCCESS)
+
+       do {
                status = scic_sds_controller_start_next_phy(scic);
+       } while (status != SCI_SUCCESS);
+
+done:
+       spin_unlock_irqrestore(&ihost->scic_lock, flags);
 }
 
 static enum sci_status scic_controller_start(struct scic_sds_controller *scic,
@@ -1378,6 +1378,8 @@ void isci_host_deinit(struct isci_host *ihost)
 
        del_timer_sync(&ihost->sci.timer.timer);
 
+       del_timer_sync(&ihost->sci.phy_timer.timer);
+
        isci_timer_list_destroy(ihost);
 }
 
@@ -1931,24 +1933,6 @@ void scic_oem_parameters_get(
        memcpy(scic_parms, (&scic->oem_parameters), sizeof(*scic_parms));
 }
 
-static enum sci_status scic_sds_controller_initialize_phy_startup(struct scic_sds_controller *scic)
-{
-       struct isci_host *ihost = scic_to_ihost(scic);
-
-       scic->phy_startup_timer = isci_timer_create(ihost,
-                                                   scic,
-                                                   scic_sds_controller_phy_startup_timeout_handler);
-
-       if (scic->phy_startup_timer == NULL)
-               return SCI_FAILURE_INSUFFICIENT_RESOURCES;
-       else {
-               scic->next_phy_to_start = 0;
-               scic->phy_startup_timer_pending = false;
-       }
-
-       return SCI_SUCCESS;
-}
-
 static void power_control_timeout(unsigned long data)
 {
        struct sci_timer *tmr = (struct sci_timer *)data;
@@ -2258,7 +2242,10 @@ static enum sci_status scic_controller_initialize(struct scic_sds_controller *sc
 
        sci_base_state_machine_change_state(sm, SCI_BASE_CONTROLLER_STATE_INITIALIZING);
 
-       scic_sds_controller_initialize_phy_startup(scic);
+       sci_init_timer(&scic->phy_timer, phy_startup_timeout);
+
+       scic->next_phy_to_start = 0;
+       scic->phy_startup_timer_pending = false;
 
        scic_sds_controller_initialize_power_control(scic);
 
@@ -2640,7 +2627,8 @@ void scic_sds_controller_link_up(struct scic_sds_controller *scic,
 {
        switch (scic->state_machine.current_state_id) {
        case SCI_BASE_CONTROLLER_STATE_STARTING:
-               scic_sds_controller_phy_timer_stop(scic);
+               sci_del_timer(&scic->phy_timer);
+               scic->phy_startup_timer_pending = false;
                scic->port_agent.link_up_handler(scic, &scic->port_agent,
                                                 port, phy);
                scic_sds_controller_start_next_phy(scic);
index 8080866..9fd47b4 100644 (file)
@@ -271,15 +271,14 @@ struct scic_sds_controller {
 
        /* Phy Startup Data */
        /**
-        * This field is the driver timer handle for controller phy request startup.
-        * On controller start the controller will start each PHY individually in
-        * order of phy index.
+        * Timer for controller phy request startup. On controller start the
+        * controller will start each PHY individually in order of phy index.
         */
-       void *phy_startup_timer;
+       struct sci_timer phy_timer;
 
        /**
-        * This field is set when the phy_startup_timer is running and is cleared when
-        * the phy_startup_timer is stopped.
+        * This field is set when the phy_timer is running and is cleared when
+        * the phy_timer is stopped.
         */
        bool phy_startup_timer_pending;