[deliverable/linux.git] / drivers / scsi / isci / port.h

/*
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 * The full GNU General Public License is included in this distribution
 * in the file called LICENSE.GPL.
 *
 * BSD LICENSE
 *
 * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *   * Neither the name of Intel Corporation nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _ISCI_PORT_H_
#define _ISCI_PORT_H_

#include <scsi/libsas.h>
#include "isci.h"
#include "sas.h"
#include "phy.h"

#define SCIC_SDS_DUMMY_PORT   0xFF

struct isci_phy;
struct isci_host;

enum isci_status {
	isci_freed        = 0x00,
	isci_starting     = 0x01,
	isci_ready        = 0x02,
	isci_ready_for_io = 0x03,
	isci_stopping     = 0x04,
	isci_stopped      = 0x05,
};

/**
 * struct scic_sds_port
 *
 * The core port object provides the the abstraction for an SCU port.
 */
struct scic_sds_port {
	/**
	 * This field contains the information for the base port state machine.
	 */
	struct sci_base_state_machine state_machine;

	bool ready_exit;

	/**
	 * This field is the port index that is reported to the SCI USER.
	 * This allows the actual hardware physical port to change without
	 * the SCI USER getting a different answer for the get port index.
	 */
	u8 logical_port_index;

	/**
	 * This field is the port index used to program the SCU hardware.
	 */
	u8 physical_port_index;

	/**
	 * This field contains the active phy mask for the port.
	 * This mask is used in conjunction with the phy state to determine
	 * which phy to select for some port operations.
	 */
	u8 active_phy_mask;

	u16 reserved_rni;
	u16 reserved_tci;

	/**
	 * This field contains the count of the io requests started on this port
	 * object.  It is used to control controller shutdown.
	 */
	u32 started_request_count;

	/**
	 * This field contains the number of devices assigned to this port.
	 * It is used to control port start requests.
	 */
	u32 assigned_device_count;

	/**
	 * This field contains the reason for the port not going ready.  It is
	 * assigned in the state handlers and used in the state transition.
	 */
	u32 not_ready_reason;

	/**
	 * This field is the table of phys assigned to the port.
	 */
	struct scic_sds_phy *phy_table[SCI_MAX_PHYS];

	/**
	 * This field is a pointer back to the controller that owns this
	 * port object.
	 */
	struct scic_sds_controller *owning_controller;

	/**
	 * This field contains the port start/stop timer handle.
	 */
	void *timer_handle;

	/**
	 * This field is the pointer to the port task scheduler registers
	 * for the SCU hardware.
	 */
	struct scu_port_task_scheduler_registers __iomem
		*port_task_scheduler_registers;

	/**
	 * This field is identical for all port objects and points to the port
	 * task scheduler group PE configuration registers.
	 * It is used to assign PEs to a port.
	 */
	u32 __iomem *port_pe_configuration_register;

	/**
	 * This field is the VIIT register space for ths port object.
	 */
	struct scu_viit_entry __iomem *viit_registers;
};


/**
 * struct isci_port - This class represents the port object used to internally
 *    represent libsas port objects. It also keeps a list of remote device
 *    objects.
 *
 *
 */
struct isci_port {
	enum isci_status status;
	struct isci_host *isci_host;
	struct asd_sas_port sas_port;
	struct list_head remote_dev_list;
	spinlock_t state_lock;
	struct list_head domain_dev_list;
	struct completion start_complete;
	struct completion hard_reset_complete;
	enum sci_status hard_reset_status;
	struct scic_sds_port sci;
};

static inline struct isci_port *sci_port_to_iport(struct scic_sds_port *sci_port)
{
	struct isci_port *iport = container_of(sci_port, typeof(*iport), sci);

	return iport;
}

enum scic_port_not_ready_reason_code {
	SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS,
	SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED,
	SCIC_PORT_NOT_READY_INVALID_PORT_CONFIGURATION,
	SCIC_PORT_NOT_READY_RECONFIGURING,

	SCIC_PORT_NOT_READY_REASON_CODE_MAX
};

struct scic_port_end_point_properties {
	struct sci_sas_address sas_address;
	struct scic_phy_proto protocols;
};

struct scic_port_properties {
	u32 index;
	struct scic_port_end_point_properties local;
	struct scic_port_end_point_properties remote;
	u32 phy_mask;
};

/**
 * enum scic_sds_port_states - This enumeration depicts all the states for the
 *    common port state machine.
 *
 *
 */
enum scic_sds_port_states {
	/**
	 * This state indicates that the port has successfully been stopped.
	 * In this state no new IO operations are permitted.
	 * This state is entered from the STOPPING state.
	 */
	SCI_BASE_PORT_STATE_STOPPED,

	/**
	 * This state indicates that the port is in the process of stopping.
	 * In this state no new IO operations are permitted, but existing IO
	 * operations are allowed to complete.
	 * This state is entered from the READY state.
	 */
	SCI_BASE_PORT_STATE_STOPPING,

	/**
	 * This state indicates the port is now ready.  Thus, the user is
	 * able to perform IO operations on this port.
	 * This state is entered from the STARTING state.
	 */
	SCI_BASE_PORT_STATE_READY,

	/**
	 * The substate where the port is started and ready but has no
	 * active phys.
	 */
	SCIC_SDS_PORT_READY_SUBSTATE_WAITING,

	/**
	 * The substate where the port is started and ready and there is
	 * at least one phy operational.
	 */
	SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL,

	/**
	 * The substate where the port is started and there was an
	 * add/remove phy event.  This state is only used in Automatic
	 * Port Configuration Mode (APC)
	 */
	SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING,

	/**
	 * This state indicates the port is in the process of performing a hard
	 * reset.  Thus, the user is unable to perform IO operations on this
	 * port.
	 * This state is entered from the READY state.
	 */
	SCI_BASE_PORT_STATE_RESETTING,

	/**
	 * This state indicates the port has failed a reset request.  This state
	 * is entered when a port reset request times out.
	 * This state is entered from the RESETTING state.
	 */
	SCI_BASE_PORT_STATE_FAILED,


};

/**
 * scic_sds_port_get_controller() -
 *
 * Helper macro to get the owning controller of this port
 */
#define scic_sds_port_get_controller(this_port)	\
	((this_port)->owning_controller)

/**
 * scic_sds_port_get_index() -
 *
 * This macro returns the physical port index for this port object
 */
#define scic_sds_port_get_index(this_port) \
	((this_port)->physical_port_index)


static inline void scic_sds_port_decrement_request_count(struct scic_sds_port *sci_port)
{
	if (WARN_ONCE(sci_port->started_request_count == 0,
		       "%s: tried to decrement started_request_count past 0!?",
			__func__))
		/* pass */;
	else
		sci_port->started_request_count--;
}

#define scic_sds_port_active_phy(port, phy) \
	(((port)->active_phy_mask & (1 << (phy)->phy_index)) != 0)

void scic_sds_port_construct(
	struct scic_sds_port *sci_port,
	u8 port_index,
	struct scic_sds_controller *scic);

enum sci_status scic_sds_port_initialize(
	struct scic_sds_port *sci_port,
	void __iomem *port_task_scheduler_registers,
	void __iomem *port_configuration_regsiter,
	void __iomem *viit_registers);

enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port);
enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port);

enum sci_status scic_sds_port_add_phy(
	struct scic_sds_port *sci_port,
	struct scic_sds_phy *sci_phy);

enum sci_status scic_sds_port_remove_phy(
	struct scic_sds_port *sci_port,
	struct scic_sds_phy *sci_phy);

void scic_sds_port_setup_transports(
	struct scic_sds_port *sci_port,
	u32 device_id);


void scic_sds_port_deactivate_phy(
	struct scic_sds_port *sci_port,
	struct scic_sds_phy *sci_phy,
	bool do_notify_user);

bool scic_sds_port_link_detected(
	struct scic_sds_port *sci_port,
	struct scic_sds_phy *sci_phy);

enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port,
				      struct scic_sds_phy *sci_phy);
enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port,
					struct scic_sds_phy *sci_phy);

struct scic_sds_request;
struct scic_sds_remote_device;
enum sci_status scic_sds_port_start_io(
	struct scic_sds_port *sci_port,
	struct scic_sds_remote_device *sci_dev,
	struct scic_sds_request *sci_req);

enum sci_status scic_sds_port_complete_io(
	struct scic_sds_port *sci_port,
	struct scic_sds_remote_device *sci_dev,
	struct scic_sds_request *sci_req);

enum sas_linkrate scic_sds_port_get_max_allowed_speed(
	struct scic_sds_port *sci_port);

void scic_sds_port_broadcast_change_received(
	struct scic_sds_port *sci_port,
	struct scic_sds_phy *sci_phy);

bool scic_sds_port_is_valid_phy_assignment(
	struct scic_sds_port *sci_port,
	u32 phy_index);

void scic_sds_port_get_sas_address(
	struct scic_sds_port *sci_port,
	struct sci_sas_address *sas_address);

void scic_sds_port_get_attached_sas_address(
	struct scic_sds_port *sci_port,
	struct sci_sas_address *sas_address);

enum isci_status isci_port_get_state(
	struct isci_port *isci_port);

void isci_port_formed(struct asd_sas_phy *);
void isci_port_deformed(struct asd_sas_phy *);

void isci_port_init(
	struct isci_port *port,
	struct isci_host *host,
	int index);

int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *iport,
				 struct isci_phy *iphy);
#endif /* !defined(_ISCI_PORT_H_) */
Commit	Line	Data
6f231dda DW	1	/*
	2	* This file is provided under a dual BSD/GPLv2 license. When using or
	3	* redistributing this file, you may do so under either license.
	4	*
	5	* GPL LICENSE SUMMARY
	6	*
	7	* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of version 2 of the GNU General Public License as
	11	* published by the Free Software Foundation.
	12	*
	13	* This program is distributed in the hope that it will be useful, but
	14	* WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	16	* General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
	21	* The full GNU General Public License is included in this distribution
	22	* in the file called LICENSE.GPL.
	23	*
	24	* BSD LICENSE
	25	*
	26	* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
	27	* All rights reserved.
	28	*
	29	* Redistribution and use in source and binary forms, with or without
	30	* modification, are permitted provided that the following conditions
	31	* are met:
	32	*
	33	* * Redistributions of source code must retain the above copyright
	34	* notice, this list of conditions and the following disclaimer.
	35	* * Redistributions in binary form must reproduce the above copyright
	36	* notice, this list of conditions and the following disclaimer in
	37	* the documentation and/or other materials provided with the
	38	* distribution.
	39	* * Neither the name of Intel Corporation nor the names of its
	40	* contributors may be used to endorse or promote products derived
	41	* from this software without specific prior written permission.
	42	*
	43	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	44	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	45	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	46	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	47	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	48	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	49	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	50	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	51	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	52	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	53	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	54	*/
	55
e531381e	56	#ifndef _ISCI_PORT_H_
6f231dda	57	#define _ISCI_PORT_H_
ce2b3261 DW	58
	59	#include <scsi/libsas.h>
	60	#include "isci.h"
e2f8db50 DW	61	#include "sas.h"
	62	#include "phy.h"
	63
	64	#define SCIC_SDS_DUMMY_PORT 0xFF
6f231dda DW	65
	66	struct isci_phy;
	67	struct isci_host;
6f231dda DW	68
	69	enum isci_status {
	70	isci_freed = 0x00,
	71	isci_starting = 0x01,
	72	isci_ready = 0x02,
	73	isci_ready_for_io = 0x03,
	74	isci_stopping = 0x04,
	75	isci_stopped = 0x05,
6f231dda DW	76	};
6f231dda DW	77
e2f8db50 DW	78	/**
	79	* struct scic_sds_port
	80	*
	81	* The core port object provides the the abstraction for an SCU port.
	82	*/
	83	struct scic_sds_port {
e2f8db50 DW	84	/**
	85	* This field contains the information for the base port state machine.
	86	*/
	87	struct sci_base_state_machine state_machine;
	88
e91f41ef PS	89	bool ready_exit;
e91f41ef PS	90
e2f8db50 DW	91	/**
	92	* This field is the port index that is reported to the SCI USER.
	93	* This allows the actual hardware physical port to change without
	94	* the SCI USER getting a different answer for the get port index.
	95	*/
	96	u8 logical_port_index;
	97
	98	/**
	99	* This field is the port index used to program the SCU hardware.
	100	*/
	101	u8 physical_port_index;
	102
	103	/**
	104	* This field contains the active phy mask for the port.
	105	* This mask is used in conjunction with the phy state to determine
	106	* which phy to select for some port operations.
	107	*/
	108	u8 active_phy_mask;
	109
	110	u16 reserved_rni;
	111	u16 reserved_tci;
	112
	113	/**
	114	* This field contains the count of the io requests started on this port
	115	* object. It is used to control controller shutdown.
	116	*/
	117	u32 started_request_count;
	118
	119	/**
	120	* This field contains the number of devices assigned to this port.
	121	* It is used to control port start requests.
	122	*/
	123	u32 assigned_device_count;
	124
	125	/**
	126	* This field contains the reason for the port not going ready. It is
	127	* assigned in the state handlers and used in the state transition.
	128	*/
	129	u32 not_ready_reason;
	130
	131	/**
	132	* This field is the table of phys assigned to the port.
	133	*/
	134	struct scic_sds_phy *phy_table[SCI_MAX_PHYS];
	135
	136	/**
	137	* This field is a pointer back to the controller that owns this
	138	* port object.
	139	*/
	140	struct scic_sds_controller *owning_controller;
	141
	142	/**
	143	* This field contains the port start/stop timer handle.
	144	*/
	145	void *timer_handle;
	146
e2f8db50 DW	147	/**
	148	* This field is the pointer to the port task scheduler registers
	149	* for the SCU hardware.
	150	*/
	151	struct scu_port_task_scheduler_registers __iomem
	152	*port_task_scheduler_registers;
	153
	154	/**
	155	* This field is identical for all port objects and points to the port
	156	* task scheduler group PE configuration registers.
	157	* It is used to assign PEs to a port.
	158	*/
	159	u32 __iomem *port_pe_configuration_register;
	160
	161	/**
	162	* This field is the VIIT register space for ths port object.
	163	*/
	164	struct scu_viit_entry __iomem *viit_registers;
e2f8db50 DW	165	};
	166
	167
	168
6f231dda DW	169	/**
	170	* struct isci_port - This class represents the port object used to internally
	171	* represent libsas port objects. It also keeps a list of remote device
	172	* objects.
	173	*
	174	*
	175	*/
	176	struct isci_port {
6f231dda DW	177	enum isci_status status;
	178	struct isci_host *isci_host;
	179	struct asd_sas_port sas_port;
	180	struct list_head remote_dev_list;
6f231dda DW	181	spinlock_t state_lock;
	182	struct list_head domain_dev_list;
	183	struct completion start_complete;
	184	struct completion hard_reset_complete;
	185	enum sci_status hard_reset_status;
e531381e	186	struct scic_sds_port sci;
6f231dda DW	187	};
6f231dda DW	188
e531381e DW	189	static inline struct isci_port sci_port_to_iport(struct scic_sds_port sci_port)
	190	{
	191	struct isci_port iport = container_of(sci_port, typeof(iport), sci);
	192
	193	return iport;
	194	}
6f231dda	195
e2f8db50 DW	196	enum scic_port_not_ready_reason_code {
	197	SCIC_PORT_NOT_READY_NO_ACTIVE_PHYS,
	198	SCIC_PORT_NOT_READY_HARD_RESET_REQUESTED,
	199	SCIC_PORT_NOT_READY_INVALID_PORT_CONFIGURATION,
	200	SCIC_PORT_NOT_READY_RECONFIGURING,
	201
	202	SCIC_PORT_NOT_READY_REASON_CODE_MAX
	203	};
	204
	205	struct scic_port_end_point_properties {
	206	struct sci_sas_address sas_address;
	207	struct scic_phy_proto protocols;
	208	};
	209
	210	struct scic_port_properties {
	211	u32 index;
	212	struct scic_port_end_point_properties local;
	213	struct scic_port_end_point_properties remote;
	214	u32 phy_mask;
	215	};
	216
e2f8db50 DW	217	/**
	218	* enum scic_sds_port_states - This enumeration depicts all the states for the
	219	* common port state machine.
	220	*
	221	*
	222	*/
	223	enum scic_sds_port_states {
	224	/**
	225	* This state indicates that the port has successfully been stopped.
	226	* In this state no new IO operations are permitted.
	227	* This state is entered from the STOPPING state.
	228	*/
	229	SCI_BASE_PORT_STATE_STOPPED,
	230
	231	/**
	232	* This state indicates that the port is in the process of stopping.
	233	* In this state no new IO operations are permitted, but existing IO
	234	* operations are allowed to complete.
	235	* This state is entered from the READY state.
	236	*/
	237	SCI_BASE_PORT_STATE_STOPPING,
	238
	239	/**
	240	* This state indicates the port is now ready. Thus, the user is
	241	* able to perform IO operations on this port.
	242	* This state is entered from the STARTING state.
	243	*/
	244	SCI_BASE_PORT_STATE_READY,
	245
e91f41ef PS	246	/**
	247	* The substate where the port is started and ready but has no
	248	* active phys.
	249	*/
	250	SCIC_SDS_PORT_READY_SUBSTATE_WAITING,
	251
	252	/**
	253	* The substate where the port is started and ready and there is
	254	* at least one phy operational.
	255	*/
	256	SCIC_SDS_PORT_READY_SUBSTATE_OPERATIONAL,
	257
	258	/**
	259	* The substate where the port is started and there was an
	260	* add/remove phy event. This state is only used in Automatic
	261	* Port Configuration Mode (APC)
	262	*/
	263	SCIC_SDS_PORT_READY_SUBSTATE_CONFIGURING,
	264
e2f8db50 DW	265	/**
	266	* This state indicates the port is in the process of performing a hard
	267	* reset. Thus, the user is unable to perform IO operations on this
	268	* port.
	269	* This state is entered from the READY state.
	270	*/
	271	SCI_BASE_PORT_STATE_RESETTING,
	272
	273	/**
	274	* This state indicates the port has failed a reset request. This state
	275	* is entered when a port reset request times out.
	276	* This state is entered from the RESETTING state.
	277	*/
	278	SCI_BASE_PORT_STATE_FAILED,
	279
6f231dda	280
e2f8db50 DW	281	};
	282
	283	/**
	284	* scic_sds_port_get_controller() -
	285	*
	286	* Helper macro to get the owning controller of this port
	287	*/
	288	#define scic_sds_port_get_controller(this_port) \
	289	((this_port)->owning_controller)
	290
e2f8db50 DW	291	/**
	292	* scic_sds_port_get_index() -
	293	*
	294	* This macro returns the physical port index for this port object
	295	*/
	296	#define scic_sds_port_get_index(this_port) \
	297	((this_port)->physical_port_index)
	298
	299
	300	static inline void scic_sds_port_decrement_request_count(struct scic_sds_port *sci_port)
	301	{
	302	if (WARN_ONCE(sci_port->started_request_count == 0,
	303	"%s: tried to decrement started_request_count past 0!?",
	304	__func__))
	305	/* pass */;
	306	else
	307	sci_port->started_request_count--;
	308	}
	309
	310	#define scic_sds_port_active_phy(port, phy) \
	311	(((port)->active_phy_mask & (1 << (phy)->phy_index)) != 0)
	312
	313	void scic_sds_port_construct(
	314	struct scic_sds_port *sci_port,
	315	u8 port_index,
	316	struct scic_sds_controller *scic);
	317
	318	enum sci_status scic_sds_port_initialize(
	319	struct scic_sds_port *sci_port,
	320	void __iomem *port_task_scheduler_registers,
	321	void __iomem *port_configuration_regsiter,
	322	void __iomem *viit_registers);
	323
d76f71d9	324	enum sci_status scic_sds_port_start(struct scic_sds_port *sci_port);
8bc80d30	325	enum sci_status scic_sds_port_stop(struct scic_sds_port *sci_port);
d76f71d9	326
e2f8db50 DW	327	enum sci_status scic_sds_port_add_phy(
	328	struct scic_sds_port *sci_port,
	329	struct scic_sds_phy *sci_phy);
	330
	331	enum sci_status scic_sds_port_remove_phy(
	332	struct scic_sds_port *sci_port,
	333	struct scic_sds_phy *sci_phy);
	334
	335	void scic_sds_port_setup_transports(
	336	struct scic_sds_port *sci_port,
	337	u32 device_id);
	338
	339
	340	void scic_sds_port_deactivate_phy(
	341	struct scic_sds_port *sci_port,
	342	struct scic_sds_phy *sci_phy,
	343	bool do_notify_user);
	344
	345	bool scic_sds_port_link_detected(
	346	struct scic_sds_port *sci_port,
	347	struct scic_sds_phy *sci_phy);
	348
051266ca PS	349	enum sci_status scic_sds_port_link_up(struct scic_sds_port *sci_port,
	350	struct scic_sds_phy *sci_phy);
	351	enum sci_status scic_sds_port_link_down(struct scic_sds_port *sci_port,
	352	struct scic_sds_phy *sci_phy);
e2f8db50	353
6813820c DW	354	struct scic_sds_request;
6813820c DW	355	struct scic_sds_remote_device;
e2f8db50 DW	356	enum sci_status scic_sds_port_start_io(
	357	struct scic_sds_port *sci_port,
	358	struct scic_sds_remote_device *sci_dev,
	359	struct scic_sds_request *sci_req);
	360
	361	enum sci_status scic_sds_port_complete_io(
	362	struct scic_sds_port *sci_port,
	363	struct scic_sds_remote_device *sci_dev,
	364	struct scic_sds_request *sci_req);
	365
	366	enum sas_linkrate scic_sds_port_get_max_allowed_speed(
	367	struct scic_sds_port *sci_port);
	368
	369	void scic_sds_port_broadcast_change_received(
	370	struct scic_sds_port *sci_port,
	371	struct scic_sds_phy *sci_phy);
	372
	373	bool scic_sds_port_is_valid_phy_assignment(
	374	struct scic_sds_port *sci_port,
	375	u32 phy_index);
	376
	377	void scic_sds_port_get_sas_address(
	378	struct scic_sds_port *sci_port,
	379	struct sci_sas_address *sas_address);
	380
	381	void scic_sds_port_get_attached_sas_address(
	382	struct scic_sds_port *sci_port,
	383	struct sci_sas_address *sas_address);
	384
	385	enum isci_status isci_port_get_state(
6f231dda DW	386	struct isci_port *isci_port);
6f231dda DW	387
e2f8db50 DW	388	void isci_port_formed(struct asd_sas_phy *);
e2f8db50 DW	389	void isci_port_deformed(struct asd_sas_phy *);
6f231dda DW	390
	391	void isci_port_init(
	392	struct isci_port *port,
	393	struct isci_host *host,
	394	int index);
	395
4393aa4e DW	396	int isci_port_perform_hard_reset(struct isci_host ihost, struct isci_port iport,
4393aa4e DW	397	struct isci_phy *iphy);
6f231dda	398	#endif /* !defined(_ISCI_PORT_H_) */