Commit 85280955 authored by Dan Williams's avatar Dan Williams
Browse files

isci: unify isci_phy and scic_sds_phy 



They are one in the same object so remove the distinction.  The near
duplicate fields (owning_port, and isci_port) will be cleaned up
after the scic_sds_port isci_port unification.

Reported-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 5076a1a9

drivers/scsi/isci/host.c

+46 −46
Original line number Diff line number Diff line
@@ -311,7 +311,7 @@ static void scic_sds_controller_unsolicited_frame(struct scic_sds_controller *sc 


	struct isci_host *ihost = scic_to_ihost(scic);

	struct scu_unsolicited_frame_header *frame_header;

	struct scic_sds_phy *phy;

	struct isci_phy *iphy;

	struct scic_sds_remote_device *device;



	enum sci_status result = SCI_FAILURE;
@@ -332,8 +332,8 @@ static void scic_sds_controller_unsolicited_frame(struct scic_sds_controller *sc 


	if (frame_header->is_address_frame) {

		index = SCU_GET_PROTOCOL_ENGINE_INDEX(completion_entry);

		phy = &ihost->phys[index].sci;

		result = scic_sds_phy_frame_handler(phy, frame_index);

		iphy = &ihost->phys[index];

		result = scic_sds_phy_frame_handler(iphy, frame_index);

	} else {



		index = SCU_GET_COMPLETION_INDEX(completion_entry);
@@ -344,8 +344,8 @@ static void scic_sds_controller_unsolicited_frame(struct scic_sds_controller *sc 
			 * device that has not yet been created.  In either case forwared

			 * the frame to the PE and let it take care of the frame data. */

			index = SCU_GET_PROTOCOL_ENGINE_INDEX(completion_entry);

			phy = &ihost->phys[index].sci;

			result = scic_sds_phy_frame_handler(phy, frame_index);

			iphy = &ihost->phys[index];

			result = scic_sds_phy_frame_handler(iphy, frame_index);

		} else {

			if (index < scic->remote_node_entries)

				device = scic->device_table[index];
@@ -372,7 +372,7 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci 
	struct isci_host *ihost = scic_to_ihost(scic);

	struct scic_sds_remote_device *device;

	struct isci_request *ireq;

	struct scic_sds_phy *phy;

	struct isci_phy *iphy;

	u32 index;



	index = SCU_GET_COMPLETION_INDEX(completion_entry);
@@ -452,8 +452,8 @@ static void scic_sds_controller_event_completion(struct scic_sds_controller *sci 
	 * we get the event notification.  This is a type 4 event. */

	case SCU_EVENT_TYPE_OSSP_EVENT:

		index = SCU_GET_PROTOCOL_ENGINE_INDEX(completion_entry);

		phy = &ihost->phys[index].sci;

		scic_sds_phy_event_handler(phy, completion_entry);

		iphy = &ihost->phys[index];

		scic_sds_phy_event_handler(iphy, completion_entry);

		break;



	case SCU_EVENT_TYPE_RNC_SUSPEND_TX:
@@ -862,11 +862,11 @@ static void scic_sds_controller_transition_to_ready( 
	}

}



static bool is_phy_starting(struct scic_sds_phy *sci_phy)

static bool is_phy_starting(struct isci_phy *iphy)

{

	enum scic_sds_phy_states state;



	state = sci_phy->sm.current_state_id;

	state = iphy->sm.current_state_id;

	switch (state) {

	case SCI_PHY_STARTING:

	case SCI_PHY_SUB_INITIAL:
@@ -896,7 +896,7 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro 
{

	struct isci_host *ihost = scic_to_ihost(scic);

	struct scic_sds_oem_params *oem = &scic->oem_parameters.sds1;

	struct scic_sds_phy *sci_phy;

	struct isci_phy *iphy;

	enum sci_status status;



	status = SCI_SUCCESS;
@@ -910,10 +910,10 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro 
		u8 index;



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

			sci_phy = &ihost->phys[index].sci;

			state = sci_phy->sm.current_state_id;

			iphy = &ihost->phys[index];

			state = iphy->sm.current_state_id;



			if (!phy_get_non_dummy_port(sci_phy))

			if (!phy_get_non_dummy_port(iphy))

				continue;



			/* The controller start operation is complete iff:
@@ -922,9 +922,9 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro 
			 * - have an indication of a connected device and it has

			 *   finished the link training process.

			 */

			if ((sci_phy->is_in_link_training == false && state == SCI_PHY_INITIAL) ||

			    (sci_phy->is_in_link_training == false && state == SCI_PHY_STOPPED) ||

			    (sci_phy->is_in_link_training == true && is_phy_starting(sci_phy))) {

			if ((iphy->is_in_link_training == false && state == SCI_PHY_INITIAL) ||

			    (iphy->is_in_link_training == false && state == SCI_PHY_STOPPED) ||

			    (iphy->is_in_link_training == true && is_phy_starting(iphy))) {

				is_controller_start_complete = false;

				break;

			}
@@ -939,10 +939,10 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro 
			scic->phy_startup_timer_pending = false;

		}

	} else {

		sci_phy = &ihost->phys[scic->next_phy_to_start].sci;

		iphy = &ihost->phys[scic->next_phy_to_start];



		if (oem->controller.mode_type == SCIC_PORT_MANUAL_CONFIGURATION_MODE) {

			if (phy_get_non_dummy_port(sci_phy) == NULL) {

			if (phy_get_non_dummy_port(iphy) == NULL) {

				scic->next_phy_to_start++;



				/* Caution recursion ahead be forwarned
@@ -958,7 +958,7 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro 
			}

		}



		status = scic_sds_phy_start(sci_phy);

		status = scic_sds_phy_start(iphy);



		if (status == SCI_SUCCESS) {

			sci_mod_timer(&scic->phy_timer,
@@ -970,7 +970,7 @@ static enum sci_status scic_sds_controller_start_next_phy(struct scic_sds_contro 
				 "to stop phy %d because of status "

				 "%d.\n",

				 __func__,

				 ihost->phys[scic->next_phy_to_start].sci.phy_index,

				 ihost->phys[scic->next_phy_to_start].phy_index,

				 status);

		}
@@ -1312,8 +1312,8 @@ void isci_host_deinit(struct isci_host *ihost) 


	/* Cancel any/all outstanding phy timers */

	for (i = 0; i < SCI_MAX_PHYS; i++) {

		struct scic_sds_phy *sci_phy = &ihost->phys[i].sci;

		del_timer_sync(&sci_phy->sata_timer.timer);

		struct isci_phy *iphy = &ihost->phys[i];

		del_timer_sync(&iphy->sata_timer.timer);

	}



	del_timer_sync(&ihost->sci.port_agent.timer.timer);
@@ -1527,7 +1527,7 @@ static enum sci_status scic_sds_controller_stop_phys(struct scic_sds_controller 
	status = SCI_SUCCESS;



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

		phy_status = scic_sds_phy_stop(&ihost->phys[index].sci);

		phy_status = scic_sds_phy_stop(&ihost->phys[index]);



		if (phy_status != SCI_SUCCESS &&

		    phy_status != SCI_FAILURE_INVALID_STATE) {
@@ -1537,7 +1537,7 @@ static enum sci_status scic_sds_controller_stop_phys(struct scic_sds_controller 
				 "%s: Controller stop operation failed to stop "

				 "phy %d because of status %d.\n",

				 __func__,

				 ihost->phys[index].sci.phy_index, phy_status);

				 ihost->phys[index].phy_index, phy_status);

		}

	}
@@ -1786,7 +1786,7 @@ static enum sci_status scic_controller_construct(struct scic_sds_controller *sci 
	/* Construct the phys for this controller */

	for (i = 0; i < SCI_MAX_PHYS; i++) {

		/* Add all the PHYs to the dummy port */

		scic_sds_phy_construct(&ihost->phys[i].sci,

		scic_sds_phy_construct(&ihost->phys[i],

				       &ihost->ports[SCI_MAX_PORTS].sci, i);

	}
@@ -1865,7 +1865,7 @@ static void power_control_timeout(unsigned long data) 
	struct sci_timer *tmr = (struct sci_timer *)data;

	struct scic_sds_controller *scic = container_of(tmr, typeof(*scic), power_control.timer);

	struct isci_host *ihost = scic_to_ihost(scic);

	struct scic_sds_phy *sci_phy;

	struct isci_phy *iphy;

	unsigned long flags;

	u8 i;
@@ -1886,8 +1886,8 @@ static void power_control_timeout(unsigned long data) 
		if (scic->power_control.phys_waiting == 0)

			break;



		sci_phy = scic->power_control.requesters[i];

		if (sci_phy == NULL)

		iphy = scic->power_control.requesters[i];

		if (iphy == NULL)

			continue;



		if (scic->power_control.phys_granted_power >=
@@ -1897,7 +1897,7 @@ static void power_control_timeout(unsigned long data) 
		scic->power_control.requesters[i] = NULL;

		scic->power_control.phys_waiting--;

		scic->power_control.phys_granted_power++;

		scic_sds_phy_consume_power_handler(sci_phy);

		scic_sds_phy_consume_power_handler(iphy);

	}



	/*
@@ -1919,14 +1919,14 @@ done: 
 */

void scic_sds_controller_power_control_queue_insert(

	struct scic_sds_controller *scic,

	struct scic_sds_phy *sci_phy)

	struct isci_phy *iphy)

{

	BUG_ON(sci_phy == NULL);

	BUG_ON(iphy == NULL);



	if (scic->power_control.phys_granted_power <

	    scic->oem_parameters.sds1.controller.max_concurrent_dev_spin_up) {

		scic->power_control.phys_granted_power++;

		scic_sds_phy_consume_power_handler(sci_phy);

		scic_sds_phy_consume_power_handler(iphy);



		/*

		 * stop and start the power_control timer. When the timer fires, the
@@ -1941,7 +1941,7 @@ void scic_sds_controller_power_control_queue_insert( 


	} else {

		/* Add the phy in the waiting list */

		scic->power_control.requesters[sci_phy->phy_index] = sci_phy;

		scic->power_control.requesters[iphy->phy_index] = iphy;

		scic->power_control.phys_waiting++;

	}

}
@@ -1954,15 +1954,15 @@ void scic_sds_controller_power_control_queue_insert( 
 */

void scic_sds_controller_power_control_queue_remove(

	struct scic_sds_controller *scic,

	struct scic_sds_phy *sci_phy)

	struct isci_phy *iphy)

{

	BUG_ON(sci_phy == NULL);

	BUG_ON(iphy == NULL);



	if (scic->power_control.requesters[sci_phy->phy_index] != NULL) {

	if (scic->power_control.requesters[iphy->phy_index] != NULL) {

		scic->power_control.phys_waiting--;

	}



	scic->power_control.requesters[sci_phy->phy_index] = NULL;

	scic->power_control.requesters[iphy->phy_index] = NULL;

}



#define AFE_REGISTER_WRITE_DELAY 10
@@ -2225,7 +2225,7 @@ static enum sci_status scic_controller_initialize(struct scic_sds_controller *sc 
	 * are accessed during the port initialization.

	 */

	for (i = 0; i < SCI_MAX_PHYS; i++) {

		result = scic_sds_phy_initialize(&ihost->phys[i].sci,

		result = scic_sds_phy_initialize(&ihost->phys[i],

						 &scic->scu_registers->peg0.pe[i].tl,

						 &scic->scu_registers->peg0.pe[i].ll);

		if (result != SCI_SUCCESS)
@@ -2484,43 +2484,43 @@ int isci_host_init(struct isci_host *isci_host) 
}



void scic_sds_controller_link_up(struct scic_sds_controller *scic,

		struct scic_sds_port *port, struct scic_sds_phy *phy)

		struct scic_sds_port *port, struct isci_phy *iphy)

{

	switch (scic->sm.current_state_id) {

	case SCIC_STARTING:

		sci_del_timer(&scic->phy_timer);

		scic->phy_startup_timer_pending = false;

		scic->port_agent.link_up_handler(scic, &scic->port_agent,

						 port, phy);

						 port, iphy);

		scic_sds_controller_start_next_phy(scic);

		break;

	case SCIC_READY:

		scic->port_agent.link_up_handler(scic, &scic->port_agent,

						 port, phy);

						 port, iphy);

		break;

	default:

		dev_dbg(scic_to_dev(scic),

			"%s: SCIC Controller linkup event from phy %d in "

			"unexpected state %d\n", __func__, phy->phy_index,

			"unexpected state %d\n", __func__, iphy->phy_index,

			scic->sm.current_state_id);

	}

}



void scic_sds_controller_link_down(struct scic_sds_controller *scic,

		struct scic_sds_port *port, struct scic_sds_phy *phy)

		struct scic_sds_port *port, struct isci_phy *iphy)

{

	switch (scic->sm.current_state_id) {

	case SCIC_STARTING:

	case SCIC_READY:

		scic->port_agent.link_down_handler(scic, &scic->port_agent,

						   port, phy);

						   port, iphy);

		break;

	default:

		dev_dbg(scic_to_dev(scic),

			"%s: SCIC Controller linkdown event from phy %d in "

			"unexpected state %d\n",

			__func__,

			phy->phy_index,

			iphy->phy_index,

			scic->sm.current_state_id);

	}

}

drivers/scsi/isci/host.h

+8 −9
Original line number Diff line number Diff line
@@ -101,14 +101,14 @@ struct scic_power_control { 
	 * This field is an array of phys that we are waiting on. The phys are direct

	 * mapped into requesters via struct scic_sds_phy.phy_index

	 */

	struct scic_sds_phy *requesters[SCI_MAX_PHYS];

	struct isci_phy *requesters[SCI_MAX_PHYS];



};



struct scic_sds_port_configuration_agent;

typedef void (*port_config_fn)(struct scic_sds_controller *,

			       struct scic_sds_port_configuration_agent *,

			       struct scic_sds_port *, struct scic_sds_phy *);

			       struct scic_sds_port *, struct isci_phy *);



struct scic_sds_port_configuration_agent {

	u16 phy_configured_mask;
@@ -523,9 +523,8 @@ static inline struct device *scic_to_dev(struct scic_sds_controller *scic) 
	return &scic_to_ihost(scic)->pdev->dev;

}



static inline struct device *sciphy_to_dev(struct scic_sds_phy *sci_phy)

static inline struct device *sciphy_to_dev(struct isci_phy *iphy)

{

	struct isci_phy *iphy = sci_phy_to_iphy(sci_phy);



	if (!iphy || !iphy->isci_port || !iphy->isci_port->isci_host)

		return NULL;
@@ -606,21 +605,21 @@ struct isci_request *scic_request_by_tag(struct scic_sds_controller *scic, 


void scic_sds_controller_power_control_queue_insert(

	struct scic_sds_controller *scic,

	struct scic_sds_phy *sci_phy);

	struct isci_phy *iphy);



void scic_sds_controller_power_control_queue_remove(

	struct scic_sds_controller *scic,

	struct scic_sds_phy *sci_phy);

	struct isci_phy *iphy);



void scic_sds_controller_link_up(

	struct scic_sds_controller *scic,

	struct scic_sds_port *sci_port,

	struct scic_sds_phy *sci_phy);

	struct isci_phy *iphy);



void scic_sds_controller_link_down(

	struct scic_sds_controller *scic,

	struct scic_sds_port *sci_port,

	struct scic_sds_phy *sci_phy);

	struct isci_phy *iphy);



void scic_sds_controller_remote_device_stopped(

	struct scic_sds_controller *scic,
@@ -651,7 +650,7 @@ void isci_host_deinit( 
void isci_host_port_link_up(

	struct isci_host *,

	struct scic_sds_port *,

	struct scic_sds_phy *);

	struct isci_phy *);

int isci_host_dev_found(struct domain_device *);



void isci_host_remote_device_start_complete(

drivers/scsi/isci/phy.c

+238 −241

File changed.

Preview size limit exceeded, changes collapsed.

drivers/scsi/isci/phy.h

+25 −87
Original line number Diff line number Diff line
@@ -84,102 +84,40 @@ enum scic_sds_phy_protocol { 
};



/**

 * struct scic_sds_phy - This structure  contains or references all of the data

 *    necessary to represent the core phy object and SCU harware protocol

 *    engine.

 *

 *

 */

struct scic_sds_phy {

	/**

	 * This field contains the information for the base phy state machine.

 * isci_phy - hba local phy infrastructure

 * @sm:

 * @protocol: attached device protocol

 * @phy_index: physical index relative to the controller (0-3)

 * @bcn_received_while_port_unassigned: bcn to report after port association

 * @sata_timer: timeout SATA signature FIS arrival

 */

struct isci_phy {

	struct sci_base_state_machine sm;



	/**

	 * This field specifies the port object that owns/contains this phy.

	 */

	struct scic_sds_port *owning_port;



	/**

	 * This field indicates whether the phy supports 1.5 Gb/s, 3.0 Gb/s,

	 * or 6.0 Gb/s operation.

	 */

	enum sas_linkrate max_negotiated_speed;



	/**

	 * This member specifies the protocol being utilized on this phy.  This

	 * field contains a legitamite value once the PHY has link trained with

	 * a remote phy.

	 */

	enum scic_sds_phy_protocol protocol;



	/**

	 * This field specifies the index with which this phy is associated (0-3).

	 */

	u8 phy_index;



	/**

	 * This member indicates if this particular PHY has received a BCN while

	 * it had no port assignement.  This BCN will be reported once the phy is

	 * assigned to a port.

	 */

	bool bcn_received_while_port_unassigned;



	/**

	 * This field indicates if this PHY is currently in the process of

	 * link training (i.e. it has started OOB, but has yet to perform

	 * IAF exchange/Signature FIS reception).

	 */

	bool is_in_link_training;



	/**

	 * Timer to detect when a signature FIS timeout has occurred. The

	 * signature FIS is the first FIS sent by an attached SATA device

	 * after OOB/SN.

	 */

	struct sci_timer sata_timer;



	/**

	 * This field is the pointer to the transport layer register for the SCU

	 * hardware.

	 */

	struct scu_transport_layer_registers __iomem *transport_layer_registers;



	/**

	 * This field points to the link layer register set within the SCU.

	 */

	struct scu_link_layer_registers __iomem *link_layer_registers;



};





struct isci_phy {

	struct scic_sds_phy sci;

	struct asd_sas_phy sas_phy;

	struct isci_port *isci_port;

	u8 sas_addr[SAS_ADDR_SIZE];



	union {

		struct sas_identify_frame iaf;

		struct dev_to_host_fis fis;

	} frame_rcvd;

};



static inline struct isci_phy *to_isci_phy(struct asd_sas_phy *sas_phy)

static inline struct isci_phy *to_iphy(struct asd_sas_phy *sas_phy)

{

	struct isci_phy *iphy = container_of(sas_phy, typeof(*iphy), sas_phy);



	return iphy;

}



static inline struct isci_phy *sci_phy_to_iphy(struct scic_sds_phy *sci_phy)

{

	struct isci_phy *iphy = container_of(sci_phy, typeof(*iphy), sci);



	return iphy;

}



struct scic_phy_cap {

	union {

		struct {
@@ -520,61 +458,61 @@ enum scic_sds_phy_states { 
	(scic_sds_port_get_controller((phy)->owning_port))



void scic_sds_phy_construct(

	struct scic_sds_phy *this_phy,

	struct isci_phy *iphy,

	struct scic_sds_port *owning_port,

	u8 phy_index);



struct scic_sds_port *phy_get_non_dummy_port(struct scic_sds_phy *sci_phy);

struct scic_sds_port *phy_get_non_dummy_port(struct isci_phy *iphy);



void scic_sds_phy_set_port(

	struct scic_sds_phy *this_phy,

	struct isci_phy *iphy,

	struct scic_sds_port *owning_port);



enum sci_status scic_sds_phy_initialize(

	struct scic_sds_phy *this_phy,

	struct isci_phy *iphy,

	struct scu_transport_layer_registers __iomem *transport_layer_registers,

	struct scu_link_layer_registers __iomem *link_layer_registers);



enum sci_status scic_sds_phy_start(

	struct scic_sds_phy *this_phy);

	struct isci_phy *iphy);



enum sci_status scic_sds_phy_stop(

	struct scic_sds_phy *this_phy);

	struct isci_phy *iphy);



enum sci_status scic_sds_phy_reset(

	struct scic_sds_phy *this_phy);

	struct isci_phy *iphy);



void scic_sds_phy_resume(

	struct scic_sds_phy *this_phy);

	struct isci_phy *iphy);



void scic_sds_phy_setup_transport(

	struct scic_sds_phy *this_phy,

	struct isci_phy *iphy,

	u32 device_id);



enum sci_status scic_sds_phy_event_handler(

	struct scic_sds_phy *this_phy,

	struct isci_phy *iphy,

	u32 event_code);



enum sci_status scic_sds_phy_frame_handler(

	struct scic_sds_phy *this_phy,

	struct isci_phy *iphy,

	u32 frame_index);



enum sci_status scic_sds_phy_consume_power_handler(

	struct scic_sds_phy *this_phy);

	struct isci_phy *iphy);



void scic_sds_phy_get_sas_address(

	struct scic_sds_phy *this_phy,

	struct isci_phy *iphy,

	struct sci_sas_address *sas_address);



void scic_sds_phy_get_attached_sas_address(

	struct scic_sds_phy *this_phy,

	struct isci_phy *iphy,

	struct sci_sas_address *sas_address);



struct scic_phy_proto;

void scic_sds_phy_get_protocols(

	struct scic_sds_phy *sci_phy,

	struct isci_phy *iphy,

	struct scic_phy_proto *protocols);

enum sas_linkrate sci_phy_linkrate(struct scic_sds_phy *sci_phy);

enum sas_linkrate sci_phy_linkrate(struct isci_phy *iphy);



struct isci_host;

void isci_phy_init(struct isci_phy *iphy, struct isci_host *ihost, int index);

drivers/scsi/isci/port.c

+119 −180

File changed.

Preview size limit exceeded, changes collapsed.

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