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Commit ac0eeb4f authored by Edmund Nadolski's avatar Edmund Nadolski Committed by Dan Williams
Browse files

isci: convert port config agent timer to sci_timer 



Signed-off-by: default avatarEdmund Nadolski <edmund.nadolski@intel.com>
[squashed collateral cleanups]
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 5553ba2b

drivers/scsi/isci/host.c

+2 −0
Original line number Diff line number Diff line
@@ -1366,6 +1366,8 @@ void isci_host_deinit(struct isci_host *ihost) 
		del_timer_sync(&sci_port->timer.timer);

	}



	del_timer_sync(&ihost->sci.port_agent.timer.timer);



	isci_timer_list_destroy(ihost);

}

drivers/scsi/isci/host.h

+1 −10
Original line number Diff line number Diff line
@@ -122,7 +122,7 @@ struct scic_sds_port_configuration_agent { 
	bool timer_pending;

	port_config_fn link_up_handler;

	port_config_fn link_down_handler;

	void *timer;

	struct sci_timer	timer;

};



/**
@@ -568,15 +568,6 @@ static inline struct isci_host *scic_to_ihost(struct scic_sds_controller *scic) 
		} \

	}



/**

 * scic_sds_controller_get_port_configuration_agent() -

 *

 * This is a helper macro to get the port configuration agent from the

 * controller object.

 */

#define scic_sds_controller_get_port_configuration_agent(controller) \

	(&(controller)->port_agent)



/**

 * scic_sds_controller_get_protocol_engine_group() -

 *

drivers/scsi/isci/port_config.c

+50 −67
Original line number Diff line number Diff line
@@ -328,21 +328,25 @@ static enum sci_status scic_sds_mpc_agent_validate_phy_configuration( 
	return scic_sds_port_configuration_agent_validate_ports(controller, port_agent);

}



/**

 *

 *

 * This timer routine is used to allow the SCI User to rediscover or change

 * device objects before a new series of link up notifications because a link

 * down has allowed a better port configuration.

 */

static void scic_sds_mpc_agent_timeout_handler(void *object)

static void mpc_agent_timeout(unsigned long data)

{

	u8 index;

	struct scic_sds_controller *scic = object;

	struct isci_host *ihost = scic_to_ihost(scic);

	struct scic_sds_port_configuration_agent *port_agent = &scic->port_agent;

	struct sci_timer *tmr = (struct sci_timer *)data;

	struct scic_sds_port_configuration_agent *port_agent;

	struct scic_sds_controller *scic;

	struct isci_host *ihost;

	unsigned long flags;

	u16 configure_phy_mask;



	port_agent = container_of(tmr, typeof(*port_agent), timer);

	scic = container_of(port_agent, typeof(*scic), port_agent);

	ihost = scic_to_ihost(scic);



	spin_lock_irqsave(&ihost->scic_lock, flags);



	if (tmr->cancel)

		goto done;



	port_agent->timer_pending = false;



	/* Find the mask of phys that are reported read but as yet unconfigured into a port */
@@ -357,6 +361,9 @@ static void scic_sds_mpc_agent_timeout_handler(void *object) 
						    sci_phy);

		}

	}



done:

	spin_unlock_irqrestore(&ihost->scic_lock, flags);

}



/**
@@ -441,7 +448,7 @@ static void scic_sds_mpc_agent_link_down( 
		    !port_agent->timer_pending) {

			port_agent->timer_pending = true;



			isci_timer_start(port_agent->timer,

			sci_mod_timer(&port_agent->timer,

				      SCIC_SDS_MPC_RECONFIGURATION_TIMEOUT);

		}
@@ -498,31 +505,6 @@ static enum sci_status scic_sds_apc_agent_validate_phy_configuration( 
	return scic_sds_port_configuration_agent_validate_ports(controller, port_agent);

}



/**

 *

 * @controller: This is the controller that to which the port agent is assigned.

 * @port_agent: This is the port agent that is requesting the timer start

 *    operation.

 * @phy: This is the phy that has caused the timer operation to be scheduled.

 *

 * This routine will restart the automatic port configuration timeout timer for

 * the next time period.  This could be caused by either a link down event or a

 * link up event where we can not yet tell to which port a phy belongs.

 */

static inline void scic_sds_apc_agent_start_timer(

	struct scic_sds_controller *scic,

	struct scic_sds_port_configuration_agent *port_agent,

	struct scic_sds_phy *sci_phy,

	u32 timeout)

{

	if (port_agent->timer_pending)

		isci_timer_stop(port_agent->timer);



	port_agent->timer_pending = true;



	isci_timer_start(port_agent->timer, timeout);

}



/**

 *

 * @controller: This is the controller object that receives the link up
@@ -635,9 +617,17 @@ static void scic_sds_apc_agent_configure_ports( 
		break;



	case SCIC_SDS_APC_START_TIMER:

		scic_sds_apc_agent_start_timer(

			controller, port_agent, phy, SCIC_SDS_APC_WAIT_LINK_UP_NOTIFICATION

			);

		/*

		 * This can occur for either a link down event, or a link

		 * up event where we cannot yet tell the port to which a

		 * phy belongs.

		 */

		if (port_agent->timer_pending)

			sci_del_timer(&port_agent->timer);



		port_agent->timer_pending = true;

		sci_mod_timer(&port_agent->timer,

			      SCIC_SDS_APC_WAIT_LINK_UP_NOTIFICATION);

		break;



	case SCIC_SDS_APC_SKIP_PHY:
@@ -719,15 +709,24 @@ static void scic_sds_apc_agent_link_down( 
}



/* configure the phys into ports when the timer fires */

static void scic_sds_apc_agent_timeout_handler(void *object)

static void apc_agent_timeout(unsigned long data)

{

	u32 index;

	struct sci_timer *tmr = (struct sci_timer *)data;

	struct scic_sds_port_configuration_agent *port_agent;

	struct scic_sds_controller *scic = object;

	struct isci_host *ihost = scic_to_ihost(scic);

	struct scic_sds_controller *scic;

	struct isci_host *ihost;

	unsigned long flags;

	u16 configure_phy_mask;



	port_agent = scic_sds_controller_get_port_configuration_agent(scic);

	port_agent = container_of(tmr, typeof(*port_agent), timer);

	scic = container_of(port_agent, typeof(*scic), port_agent);

	ihost = scic_to_ihost(scic);



	spin_lock_irqsave(&ihost->scic_lock, flags);



	if (tmr->cancel)

		goto done;



	port_agent->timer_pending = false;
@@ -743,6 +742,9 @@ static void scic_sds_apc_agent_timeout_handler(void *object) 
		scic_sds_apc_agent_configure_ports(scic, port_agent,

						   &ihost->phys[index].sci, false);

	}



done:

	spin_unlock_irqrestore(&ihost->scic_lock, flags);

}



/*
@@ -769,7 +771,6 @@ void scic_sds_port_configuration_agent_construct( 
	port_agent->link_down_handler = NULL;



	port_agent->timer_pending = false;

	port_agent->timer = NULL;



	for (index = 0; index < SCI_MAX_PORTS; index++) {

		port_agent->phy_valid_port_range[index].min_index = 0;
@@ -781,9 +782,8 @@ enum sci_status scic_sds_port_configuration_agent_initialize( 
	struct scic_sds_controller *scic,

	struct scic_sds_port_configuration_agent *port_agent)

{

	enum sci_status status = SCI_SUCCESS;

	enum sci_status status;

	enum scic_port_configuration_mode mode;

	struct isci_host *ihost = scic_to_ihost(scic);



	mode = scic->oem_parameters.sds1.controller.mode_type;
@@ -794,10 +794,7 @@ enum sci_status scic_sds_port_configuration_agent_initialize( 
		port_agent->link_up_handler = scic_sds_mpc_agent_link_up;

		port_agent->link_down_handler = scic_sds_mpc_agent_link_down;



		port_agent->timer = isci_timer_create(

				ihost,

				scic,

				scic_sds_mpc_agent_timeout_handler);

		sci_init_timer(&port_agent->timer, mpc_agent_timeout);

	} else {

		status = scic_sds_apc_agent_validate_phy_configuration(

				scic, port_agent);
@@ -805,21 +802,7 @@ enum sci_status scic_sds_port_configuration_agent_initialize( 
		port_agent->link_up_handler = scic_sds_apc_agent_link_up;

		port_agent->link_down_handler = scic_sds_apc_agent_link_down;



		port_agent->timer = isci_timer_create(

				ihost,

				scic,

				scic_sds_apc_agent_timeout_handler);

	}



	/* Make sure we have actually gotten a timer */

	if ((status == SCI_SUCCESS) && (port_agent->timer == NULL)) {

		dev_err(scic_to_dev(scic),

			"%s: Controller 0x%p automatic port configuration "

			"agent could not get timer.\n",

			__func__,

			scic);



		status = SCI_FAILURE;

		sci_init_timer(&port_agent->timer, apc_agent_timeout);

	}



	return status;