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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_remote_device.h 231689 2012-02-14 15:58:49Z jimharris $
*/
#ifndef _SCIC_REMOTE_DEVICE_H_
#define _SCIC_REMOTE_DEVICE_H_
/**
* @file
*
* @brief This file contains all of the interface methods that can be called
* by an SCIC user on the device object.
*/
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
#include <dev/isci/scil/sci_types.h>
#include <dev/isci/scil/sci_status.h>
#include <dev/isci/scil/intel_sas.h>
/**
* @brief
*/
typedef enum SCIC_REMOTE_DEVICE_NOT_READY_REASON_CODE
{
SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED,
SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED,
SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED,
SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED,
SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED,
SCIC_REMOTE_DEVICE_NOT_READY_REASON_CODE_MAX
} SCIC_REMOTE_DEVICE_NOT_READY_REASON_CODE_T;
/**
* @brief This method simply returns the maximum memory space needed to
* store a remote device object.
*
* @return a positive integer value indicating the size (in bytes) of the
* remote device object.
*/
U32 scic_remote_device_get_object_size(
void
);
/**
* @brief This method will perform the construction common to all
* remote device objects.
*
* @note It isn't necessary to call scic_remote_device_destruct() for
* device objects that have only called this method for construction.
* Once subsequent construction methods have been invoked (e.g.
* scic_remote_device_da_construct()), then destruction should occur.
* @note
*
* @param[in] port This parameter specifies the SAS/SATA Port handle
* corresponding to the port through which this device
* is to be accessed.
* @param[in] remote_device_memory This parameter specifies the memory
* location to be used by the SCIC implementation to store the
* SCIC REMOTE DEVICE.
* @param[out] new_remote_device_handle An opaque remote device handle to
* be used by the SCIC user for all subsequent remote device
* operations.
*
* @return none
*/
void scic_remote_device_construct(
SCI_PORT_HANDLE_T port,
void * remote_device_memory,
SCI_REMOTE_DEVICE_HANDLE_T * new_remote_device_handle
);
/**
* @brief This method will construct a SCIC_REMOTE_DEVICE object for a
* direct attached (da) device. The information (e.g. IAF, Signature
* FIS, etc.) necessary to build the device is known to the SCI Core
* since it is contained in the scic_phy object.
*
* @pre The user must have previously called scic_remote_device_construct()
*
* @note Remote device objects are a limited resource. As such, they
* must be protected. Thus calls to construct and destruct are
* mutually exclusive and non-reentrant.
*
* @param[in] remote_device This parameter specifies the remote device to be
* destructed.
*
* @return Indicate if the remote device was successfully constructed.
* @retval SCI_SUCCESS Returned if the device was successfully constructed.
* @retval SCI_FAILURE_DEVICE_EXISTS Returned if the device has already
* been constructed. If it's an additional phy for the target, then
* call scic_remote_device_da_add_phy().
* @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL Returned if the supplied
* parameters necessitate creation of a remote device for which
* the protocol is not supported by the underlying controller
* hardware.
* @retval SCI_FAILURE_INSUFFICIENT_RESOURCES This value is returned if
* the core controller associated with the supplied parameters
* is unable to support additional remote devices.
*/
SCI_STATUS scic_remote_device_da_construct(
SCI_REMOTE_DEVICE_HANDLE_T remote_device
);
/**
* @brief This method will construct an SCIC_REMOTE_DEVICE object for an
* expander attached (ea) device from an SMP Discover Response.
*
* @pre The user must have previously called scic_remote_device_construct()
*
* @note Remote device objects are a limited resource. As such, they
* must be protected. Thus calls to construct and destruct are
* mutually exclusive and non-reentrant.
*
* @param[in] remote_device This parameter specifies the remote device to be
* destructed.
* @param[in] discover_response This parameter specifies the SMP
* Discovery Response to be used in device creation.
*
* @return Indicate if the remote device was successfully constructed.
* @retval SCI_SUCCESS Returned if the device was successfully constructed.
* @retval SCI_FAILURE_DEVICE_EXISTS Returned if the device has already
* been constructed. If it's an additional phy for the target, then
* call scic_ea_remote_device_add_phy().
* @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL Returned if the supplied
* parameters necessitate creation of a remote device for which
* the protocol is not supported by the underlying controller
* hardware.
* @retval SCI_FAILURE_INSUFFICIENT_RESOURCES This value is returned if
* the core controller associated with the supplied parameters
* is unable to support additional remote devices.
*/
SCI_STATUS scic_remote_device_ea_construct(
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
SMP_RESPONSE_DISCOVER_T * discover_response
);
/**
* @brief This method is utilized to free up a core's remote device object.
*
* @note Remote device objects are a limited resource. As such, they
* must be protected. Thus calls to construct and destruct are
* mutually exclusive and non-reentrant.
*
* @param[in] remote_device This parameter specifies the remote device to be
* destructed.
*
* @return The return value shall indicate if the device was successfully
* destructed or if some failure occurred.
* @retval SCI_STATUS This value is returned if the device is successfully
* destructed.
* @retval SCI_FAILURE_INVALID_REMOTE_DEVICE This value is returned if the
* supplied device isn't valid (e.g. it's already been destoryed,
* the handle isn't valid, etc.).
*/
SCI_STATUS scic_remote_device_destruct(
SCI_REMOTE_DEVICE_HANDLE_T remote_device
);
#if !defined(DISABLE_WIDE_PORTED_TARGETS)
/**
* @brief This method will attempt to set port width for a remote device.
*
* @param[in] remote_device This parameter specifies the remote device
* object for which to set new port width.
* @param[in] new_port_width The new port width to update.
*
* @return Indicate if the device port width was successfully updated.
* @retval SCI_SUCCESS This value is returned when port width update was successful.
* @retval SCI_FAILURE The port width update failed.
*/
SCI_STATUS scic_remote_device_set_port_width(
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
U8 new_port_width
);
/**
* @brief This method retrieve the SCIC's record of a remote device's port width.
*
* @param[in] remote_device This parameter specifies the remote device
* object for which to retrieve the port width value.
*
* @return The SCIC's record of a remote device's port width
*/
U8 scic_remote_device_get_port_width(
SCI_REMOTE_DEVICE_HANDLE_T remote_device
);
#define scic_remote_device_da_add_phy(device, phy) SCI_FAILURE
#define scic_remote_device_ea_add_phy(device, response) SCI_FAILURE
#define scic_remote_device_remove_phy(device) SCI_FAILURE
#else // !defined(DISABLE_WIDE_PORTED_TARGETS)
#define scic_remote_device_set_port_width(device, port_width) SCI_FAILURE
#define scic_remote_device_get_port_width(device) (1)
#define scic_remote_device_da_add_phy(device, phy) SCI_FAILURE
#define scic_remote_device_ea_add_phy(device, response) SCI_FAILURE
#define scic_remote_device_remove_phy(device) SCI_FAILURE
#endif // !defined(DISABLE_WIDE_PORTED_TARGETS)
/**
* @brief This method will start the supplied remote device. This method
* enables normal IO requests to flow through to the remote device.
*
* @param[in] remote_device This parameter specifies the device to be
* started.
* @param[in] timeout This parameter specifies the number of milliseconds
* in which the start operation should complete.
*
* @return An indication of whether the device was successfully started.
* @retval SCI_SUCCESS This value is returned if the device was successfully
* started.
* @retval SCI_FAILURE_INVALID_PHY This value is returned if the user attempts
* to start the device when there have been no phys added to it.
*/
SCI_STATUS scic_remote_device_start(
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
U32 timeout
);
/**
* @brief This method will stop both transmission and reception of link
* activity for the supplied remote device. This method disables
* normal IO requests from flowing through to the remote device.
*
* @param[in] remote_device This parameter specifies the device to be
* stopped.
* @param[in] timeout This parameter specifies the number of milliseconds
* in which the stop operation should complete.
*
* @return An indication of whether the device was successfully stopped.
* @retval SCI_SUCCESS This value is returned if the transmission and reception
* for the device was successfully stopped.
*/
SCI_STATUS scic_remote_device_stop(
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
U32 timeout
);
/**
* @brief This method will reset the device making it ready for operation.
* This method must be called anytime the device is reset either
* through a SMP phy control or a port hard reset request.
*
* @note This method does not actually cause the device hardware to be reset.
* This method resets the software object so that it will be operational
* after a device hardware reset completes.
*
* @param[in] remote_device This parameter specifies the device to be
* reset.
*
* @return An indication of whether the device reset was accepted.
* @retval SCI_SUCCESS This value is returned if the device reset is started.
*/
SCI_STATUS scic_remote_device_reset(
SCI_REMOTE_DEVICE_HANDLE_T remote_device
);
/**
* @brief This method informs the device object that the reset operation is
* complete and the device can resume operation again.
*
* @param[in] remote_device This parameter specifies the device which is to
* be informed of the reset complete operation.
*
* @return An indication that the device is resuming operation.
* @retval SCI_SUCCESS the device is resuming operation.
*/
SCI_STATUS scic_remote_device_reset_complete(
SCI_REMOTE_DEVICE_HANDLE_T remote_device
);
/**
* @brief This method returns the suggested target reset timeout. SAS and
* SATA devices have different timeout values in milliseconds for
* target reset operations.
*
* @param[in] remote_device This parameter specifies the device which is to
* be informed of the reset complete operation.
*
* @return The suggested reset timeout value for the specified target device
* in milliseconds.
*/
U32 scic_remote_device_get_suggested_reset_timeout(
SCI_REMOTE_DEVICE_HANDLE_T remote_device
);
/**
* @brief This method will set the maximum link speed to be utilized
* when connections are established for the supplied remote device.
*
* @pre The remote device must previously have been stopped for this
* call to succeed.
*
* @param[in] remote_device This parameter specifies the device for which
* to set the maximum connection rate.
* @param[in] connection_rate This parameter specifies the maximum link rate
* to be utilized for all connections to the supplied remote
* device.
*
* @return An indication as to whether the connection rate was successfully
* updated.
* @retval SCI_SUCCESS This value is returned if the connection rate was
* successfully updated.
* @retval SCI_FAILURE_INVALID_STATE This value is returned if the remote
* device is not in a stopped state or some other state that allows
* for a maximum connection rate change.
*/
SCI_STATUS scic_remote_device_set_max_connection_rate(
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
SCI_SAS_LINK_RATE connection_rate
);
/**
* @brief This method simply returns the link rate at which communications
* to the remote device occur.
*
* @param[in] remote_device This parameter specifies the device for which
* to get the connection rate.
*
* @return Return the link rate at which we transfer for the supplied
* remote device.
*/
SCI_SAS_LINK_RATE scic_remote_device_get_connection_rate(
SCI_REMOTE_DEVICE_HANDLE_T remote_device
);
/**
* @brief This method will indicate which protocols are supported by this
* remote device.
*
* @param[in] remote_device This parameter specifies the device for which
* to return the protocol.
* @param[out] protocols This parameter specifies the output values, from
* the remote device object, which indicate the protocols
* supported by the supplied remote_device.
*
* @return The type of protocols supported by this device. The values are
* returned as part of a bit mask in order to allow for multi-protocol
* support.
*/
void scic_remote_device_get_protocols(
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
SMP_DISCOVER_RESPONSE_PROTOCOLS_T * protocols
);
/**
* @brief This method will indicate the SAS address for the remote device.
*
* @param[in] remote_device This parameter specifies the device for which
* to return the SAS address.
* @param[out] sas_address This parameter specifies a pointer to a SAS
* address structure into which the core will copy the SAS
* address for the remote device.
*
* @return none
*/
void scic_remote_device_get_sas_address(
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
SCI_SAS_ADDRESS_T * sas_address
);
#if !defined(DISABLE_ATAPI)
/**
* This method first decide whether a device is a stp target, then
* decode the signature fis of a DA STP device to tell whether it
* is a standard end disk or an ATAPI device.
*
* @param[in] this_device The device whose type is to be decided.
*
* @return BOOL Indicate a device is ATAPI device or not.
*/
BOOL scic_remote_device_is_atapi(
SCI_REMOTE_DEVICE_HANDLE_T device_handle
);
#else // !defined(DISABLE_ATAPI)
#define scic_remote_device_is_atapi(device_handle) FALSE
#endif // !defined(DISABLE_ATAPI)
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // _SCIC_REMOTE_DEVICE_H_