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/*-
* 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.
*
* 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.
*
* $FreeBSD: release/9.1.0/sys/dev/isci/scil/scic_sds_phy.h 231689 2012-02-14 15:58:49Z jimharris $
*/
#ifndef _SCIC_SDS_PHY_H_
#define _SCIC_SDS_PHY_H_
/**
* @file
*
* @brief This file contains the structures, constants and prototypes for the
* SCIC_SDS_PHY object.
*/
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
#include <dev/isci/scil/intel_sata.h>
#include <dev/isci/scil/intel_sas.h>
#include <dev/isci/scil/sci_base_phy.h>
#include <dev/isci/scil/scu_registers.h>
#include <dev/isci/scil/scu_event_codes.h>
/**
* This is the timeout value for the SATA phy to wait for a SIGNATURE FIS
* before restarting the starting state machine. Technically, the old
* parallel ATA specification required up to 30 seconds for a device to
* issue its signature FIS as a result of a soft reset. Now we see that
* devices respond generally within 15 seconds, but we'll use 25 for now.
*/
#define SCIC_SDS_SIGNATURE_FIS_TIMEOUT 25000
/**
* This is the timeout for the SATA OOB/SN because the hardware does not
* recognize a hot plug after OOB signal but before the SN signals. We
* need to make sure after a hotplug timeout if we have not received the
* speed event notification from the hardware that we restart the hardware
* OOB state machine.
*/
#define SCIC_SDS_SATA_LINK_TRAINING_TIMEOUT 250
/**
* @enum SCIC_SDS_PHY_STARTING_SUBSTATES
*/
enum SCIC_SDS_PHY_STARTING_SUBSTATES
{
/**
* Initial state
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_INITIAL,
/**
* Wait state for the hardware OSSP event type notification
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_OSSP_EN,
/**
* Wait state for the PHY speed notification
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_SPEED_EN,
/**
* Wait state for the IAF Unsolicited frame notification
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_IAF_UF,
/**
* Wait state for the request to consume power
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SAS_POWER,
/**
* Wait state for request to consume power
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_POWER,
/**
* Wait state for the SATA PHY notification
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_PHY_EN,
/**
* Wait for the SATA PHY speed notification
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SATA_SPEED_EN,
/**
* Wait state for the SIGNATURE FIS unsolicited frame notification
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_AWAIT_SIG_FIS_UF,
/**
* Exit state for this state machine
*/
SCIC_SDS_PHY_STARTING_SUBSTATE_FINAL,
/**
* Maximum number of substates for the STARTING state machine
*/
SCIC_SDS_PHY_STARTING_MAX_SUBSTATES
};
struct SCIC_SDS_PORT;
struct SCIC_SDS_CONTROLLER;
#ifdef SCIC_DEBUG_ENABLED
#define MAX_STATE_TRANSITION_RECORD (256)
/**
* Debug code to record the state transitions for the phy object
*/
typedef struct SCIC_SDS_PHY_STATE_RECORD
{
SCI_BASE_OBSERVER_T base_state_observer;
SCI_BASE_OBSERVER_T starting_state_observer;
U16 index;
U32 state_transition_table[MAX_STATE_TRANSITION_RECORD];
} SCIC_SDS_PHY_STATE_RECORD_T;
#endif // SCIC_DEBUG_ENABLED
/**
* @enum
*
* @brief This enumeration provides a named phy type for the state machine
*/
enum SCIC_SDS_PHY_PROTOCOL
{
/**
* This is an unknown phy type since there is either nothing on the other
* end or we have not detected the phy type as yet.
*/
SCIC_SDS_PHY_PROTOCOL_UNKNOWN,
/**
* This is a SAS PHY
*/
SCIC_SDS_PHY_PROTOCOL_SAS,
/**
* This is a SATA PHY
*/
SCIC_SDS_PHY_PROTOCOL_SATA,
SCIC_SDS_MAX_PHY_PROTOCOLS
};
/**
* @struct SCIC_SDS_PHY
*
* @brief This structure contains or references all of the data necessary to
* represent the core phy object and SCU harware protocol engine.
*/
typedef struct SCIC_SDS_PHY
{
SCI_BASE_PHY_T parent;
/**
* 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.
*/
SCI_SAS_LINK_RATE 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;
union
{
struct
{
SCI_SAS_IDENTIFY_ADDRESS_FRAME_T identify_address_frame_buffer;
} sas;
struct
{
SATA_FIS_REG_D2H_T signature_fis_buffer;
} sata;
} phy_type;
/**
* This field contains a reference to the timer utilized in detecting
* when a signature FIS timeout has occurred. The signature FIS is the
* first FIS sent by an attached SATA device after OOB/SN.
*/
void * sata_timeout_timer;
struct SCIC_SDS_PHY_STATE_HANDLER *state_handlers;
SCI_BASE_STATE_MACHINE_T starting_substate_machine;
#ifdef SCI_LOGGING
SCI_BASE_STATE_MACHINE_LOGGER_T starting_substate_machine_logger;
#endif
#ifdef SCIC_DEBUG_ENABLED
SCIC_SDS_PHY_STATE_RECORD_T state_record;
#endif // SCIC_DEBUG_ENABLED
/**
* This field tracks how many errors of each type have been detected since
* the last controller reset or counter clear. Note that these are only
* for the error types that our driver needs to count manually. See
* SCU_ERR_CNT_* values defined in scu_event_codes.h.
*/
U32 error_counter[SCU_ERR_CNT_MAX_INDEX];
/**
* This field is the pointer to the transport layer register for the SCU
* hardware.
*/
SCU_TRANSPORT_LAYER_REGISTERS_T *transport_layer_registers;
/**
* This field points to the link layer register set within the SCU.
*/
SCU_LINK_LAYER_REGISTERS_T *link_layer_registers;
} SCIC_SDS_PHY_T;
typedef SCI_STATUS (*SCIC_SDS_PHY_EVENT_HANDLER_T)(SCIC_SDS_PHY_T *, U32);
typedef SCI_STATUS (*SCIC_SDS_PHY_FRAME_HANDLER_T)(SCIC_SDS_PHY_T *, U32);
typedef SCI_STATUS (*SCIC_SDS_PHY_POWER_HANDLER_T)(SCIC_SDS_PHY_T *);
/**
* @struct SCIC_SDS_PHY_STATE_HANDLER
*/
typedef struct SCIC_SDS_PHY_STATE_HANDLER
{
/**
* This is the SCI_BASE_PHY object state handlers.
*/
SCI_BASE_PHY_STATE_HANDLER_T parent;
/**
* The state handler for unsolicited frames received from the SCU hardware.
*/
SCIC_SDS_PHY_FRAME_HANDLER_T frame_handler;
/**
* The state handler for events received from the SCU hardware.
*/
SCIC_SDS_PHY_EVENT_HANDLER_T event_handler;
/**
* The state handler for staggered spinup.
*/
SCIC_SDS_PHY_POWER_HANDLER_T consume_power_handler;
} SCIC_SDS_PHY_STATE_HANDLER_T;
extern SCIC_SDS_PHY_STATE_HANDLER_T scic_sds_phy_state_handler_table[];
extern SCI_BASE_STATE_T scic_sds_phy_state_table[];
extern SCI_BASE_STATE_T scic_sds_phy_starting_substates[];
extern SCIC_SDS_PHY_STATE_HANDLER_T
scic_sds_phy_starting_substate_handler_table[];
/**
* This macro returns the phy index for the specified phy
*/
#define scic_sds_phy_get_index(phy) \
((phy)->phy_index)
/**
* @brief This macro returns the controller for this phy
*/
#define scic_sds_phy_get_controller(phy) \
(scic_sds_port_get_controller((phy)->owning_port))
/**
* @brief This macro returns the state machine for the base phy
*/
#define scic_sds_phy_get_base_state_machine(phy) \
(&(phy)->parent.state_machine)
/**
* @brief This macro returns the starting substate machine for
* this phy
*/
#define scic_sds_phy_get_starting_substate_machine(phy) \
(&(phy)->starting_substate_machine)
/**
* @brief This macro sets the state handlers for this phy object
*/
#define scic_sds_phy_set_state_handlers(phy, handlers) \
((phy)->state_handlers = (handlers))
/**
* This macro set the base state handlers for the phy object.
*/
#define scic_sds_phy_set_base_state_handlers(phy, state_id) \
scic_sds_phy_set_state_handlers( \
(phy), \
&scic_sds_phy_state_handler_table[(state_id)] \
)
/**
* This macro returns TRUE if the current base state for this phy is
* SCI_BASE_PHY_STATE_READY
*/
#define scic_sds_phy_is_ready(phy) \
( \
SCI_BASE_PHY_STATE_READY \
== sci_base_state_machine_get_state( \
scic_sds_phy_get_base_state_machine(phy) \
) \
)
// ---------------------------------------------------------------------------
U32 scic_sds_phy_get_object_size(void);
U32 scic_sds_phy_get_min_timer_count(void);
U32 scic_sds_phy_get_max_timer_count(void);
// ---------------------------------------------------------------------------
void scic_sds_phy_construct(
struct SCIC_SDS_PHY *this_phy,
struct SCIC_SDS_PORT *owning_port,
U8 phy_index
);
SCI_PORT_HANDLE_T scic_sds_phy_get_port(
SCIC_SDS_PHY_T *this_phy
);
void scic_sds_phy_set_port(
struct SCIC_SDS_PHY *this_phy,
struct SCIC_SDS_PORT *owning_port
);
SCI_STATUS scic_sds_phy_initialize(
SCIC_SDS_PHY_T *this_phy,
void *transport_layer_registers,
SCU_LINK_LAYER_REGISTERS_T *link_layer_registers
);
SCI_STATUS scic_sds_phy_reset(
SCIC_SDS_PHY_T * this_phy
);
void scic_sds_phy_sata_timeout(
SCI_OBJECT_HANDLE_T cookie
);
// ---------------------------------------------------------------------------
void scic_sds_phy_suspend(
struct SCIC_SDS_PHY *this_phy
);
void scic_sds_phy_resume(
struct SCIC_SDS_PHY *this_phy
);
void scic_sds_phy_setup_transport(
struct SCIC_SDS_PHY * this_phy,
U32 device_id
);
// ---------------------------------------------------------------------------
SCI_STATUS scic_sds_phy_event_handler(
SCIC_SDS_PHY_T *this_phy,
U32 event_code
);
SCI_STATUS scic_sds_phy_frame_handler(
SCIC_SDS_PHY_T *this_phy,
U32 frame_index
);
SCI_STATUS scic_sds_phy_consume_power_handler(
SCIC_SDS_PHY_T *this_phy
);
void scic_sds_phy_get_sas_address(
SCIC_SDS_PHY_T *this_phy,
SCI_SAS_ADDRESS_T *sas_address
);
void scic_sds_phy_get_attached_sas_address(
SCIC_SDS_PHY_T *this_phy,
SCI_SAS_ADDRESS_T *sas_address
);
void scic_sds_phy_get_protocols(
SCIC_SDS_PHY_T *this_phy,
SCI_SAS_IDENTIFY_ADDRESS_FRAME_PROTOCOLS_T * protocols
);
void scic_sds_phy_get_attached_phy_protocols(
SCIC_SDS_PHY_T *this_phy,
SCI_SAS_IDENTIFY_ADDRESS_FRAME_PROTOCOLS_T * protocols
);
//****************************************************************************-
//* SCIC SDS PHY Handler Methods
//****************************************************************************-
SCI_STATUS scic_sds_phy_default_start_handler(
SCI_BASE_PHY_T *phy
);
SCI_STATUS scic_sds_phy_default_stop_handler(
SCI_BASE_PHY_T *phy
);
SCI_STATUS scic_sds_phy_default_reset_handler(
SCI_BASE_PHY_T * phy
);
SCI_STATUS scic_sds_phy_default_destroy_handler(
SCI_BASE_PHY_T *phy
);
SCI_STATUS scic_sds_phy_default_frame_handler(
SCIC_SDS_PHY_T *phy,
U32 frame_index
);
SCI_STATUS scic_sds_phy_default_event_handler(
SCIC_SDS_PHY_T *phy,
U32 evnet_code
);
SCI_STATUS scic_sds_phy_default_consume_power_handler(
SCIC_SDS_PHY_T *phy
);
void scic_sds_phy_release_resource(
struct SCIC_SDS_CONTROLLER * controller,
struct SCIC_SDS_PHY * phy
);
void scic_sds_phy_restart_starting_state(
struct SCIC_SDS_PHY * this_phy
);
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // _SCIC_SDS_PHY_H_