f11c7f6305
The isci driver is for the integrated SAS controller in the Intel C600 (Patsburg) chipset. Source files in sys/dev/isci directory are FreeBSD-specific, and sys/dev/isci/scil subdirectory contains an OS-agnostic library (SCIL) published by Intel to control the SAS controller. This library is used primarily as-is in this driver, with some post-processing to better integrate into the kernel build environment. isci.4 and a README in the sys/dev/isci directory contain a few additional details. This driver is only built for amd64 and i386 targets. Sponsored by: Intel Reviewed by: scottl Approved by: scottl
443 lines
17 KiB
C
443 lines
17 KiB
C
/*-
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* BSD LICENSE
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SCIC_REMOTE_DEVICE_H_
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#define _SCIC_REMOTE_DEVICE_H_
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/**
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* @file
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*
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* @brief This file contains all of the interface methods that can be called
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* by an SCIC user on the device object.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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#include <dev/isci/scil/sci_types.h>
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#include <dev/isci/scil/sci_status.h>
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#include <dev/isci/scil/intel_sas.h>
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/**
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* @brief
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*/
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typedef enum SCIC_REMOTE_DEVICE_NOT_READY_REASON_CODE
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{
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SCIC_REMOTE_DEVICE_NOT_READY_START_REQUESTED,
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SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED,
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SCIC_REMOTE_DEVICE_NOT_READY_SATA_REQUEST_STARTED,
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SCIC_REMOTE_DEVICE_NOT_READY_SATA_SDB_ERROR_FIS_RECEIVED,
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SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED,
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SCIC_REMOTE_DEVICE_NOT_READY_REASON_CODE_MAX
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} SCIC_REMOTE_DEVICE_NOT_READY_REASON_CODE_T;
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/**
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* @brief This method simply returns the maximum memory space needed to
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* store a remote device object.
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*
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* @return a positive integer value indicating the size (in bytes) of the
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* remote device object.
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*/
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U32 scic_remote_device_get_object_size(
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void
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);
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/**
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* @brief This method will perform the construction common to all
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* remote device objects.
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*
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* @note It isn't necessary to call scic_remote_device_destruct() for
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* device objects that have only called this method for construction.
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* Once subsequent construction methods have been invoked (e.g.
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* scic_remote_device_da_construct()), then destruction should occur.
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* @note
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*
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* @param[in] port This parameter specifies the SAS/SATA Port handle
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* corresponding to the port through which this device
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* is to be accessed.
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* @param[in] remote_device_memory This parameter specifies the memory
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* location to be used by the SCIC implementation to store the
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* SCIC REMOTE DEVICE.
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* @param[out] new_remote_device_handle An opaque remote device handle to
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* be used by the SCIC user for all subsequent remote device
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* operations.
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*
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* @return none
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*/
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void scic_remote_device_construct(
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SCI_PORT_HANDLE_T port,
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void * remote_device_memory,
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SCI_REMOTE_DEVICE_HANDLE_T * new_remote_device_handle
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);
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/**
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* @brief This method will construct a SCIC_REMOTE_DEVICE object for a
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* direct attached (da) device. The information (e.g. IAF, Signature
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* FIS, etc.) necessary to build the device is known to the SCI Core
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* since it is contained in the scic_phy object.
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*
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* @pre The user must have previously called scic_remote_device_construct()
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*
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* @note Remote device objects are a limited resource. As such, they
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* must be protected. Thus calls to construct and destruct are
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* mutually exclusive and non-reentrant.
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*
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* @param[in] remote_device This parameter specifies the remote device to be
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* destructed.
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*
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* @return Indicate if the remote device was successfully constructed.
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* @retval SCI_SUCCESS Returned if the device was successfully constructed.
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* @retval SCI_FAILURE_DEVICE_EXISTS Returned if the device has already
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* been constructed. If it's an additional phy for the target, then
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* call scic_remote_device_da_add_phy().
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* @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL Returned if the supplied
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* parameters necessitate creation of a remote device for which
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* the protocol is not supported by the underlying controller
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* hardware.
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* @retval SCI_FAILURE_INSUFFICIENT_RESOURCES This value is returned if
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* the core controller associated with the supplied parameters
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* is unable to support additional remote devices.
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*/
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SCI_STATUS scic_remote_device_da_construct(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device
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);
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/**
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* @brief This method will construct an SCIC_REMOTE_DEVICE object for an
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* expander attached (ea) device from an SMP Discover Response.
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*
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* @pre The user must have previously called scic_remote_device_construct()
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*
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* @note Remote device objects are a limited resource. As such, they
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* must be protected. Thus calls to construct and destruct are
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* mutually exclusive and non-reentrant.
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*
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* @param[in] remote_device This parameter specifies the remote device to be
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* destructed.
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* @param[in] discover_response This parameter specifies the SMP
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* Discovery Response to be used in device creation.
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*
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* @return Indicate if the remote device was successfully constructed.
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* @retval SCI_SUCCESS Returned if the device was successfully constructed.
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* @retval SCI_FAILURE_DEVICE_EXISTS Returned if the device has already
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* been constructed. If it's an additional phy for the target, then
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* call scic_ea_remote_device_add_phy().
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* @retval SCI_FAILURE_UNSUPPORTED_PROTOCOL Returned if the supplied
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* parameters necessitate creation of a remote device for which
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* the protocol is not supported by the underlying controller
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* hardware.
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* @retval SCI_FAILURE_INSUFFICIENT_RESOURCES This value is returned if
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* the core controller associated with the supplied parameters
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* is unable to support additional remote devices.
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*/
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SCI_STATUS scic_remote_device_ea_construct(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device,
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SMP_RESPONSE_DISCOVER_T * discover_response
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);
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/**
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* @brief This method is utilized to free up a core's remote device object.
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*
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* @note Remote device objects are a limited resource. As such, they
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* must be protected. Thus calls to construct and destruct are
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* mutually exclusive and non-reentrant.
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*
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* @param[in] remote_device This parameter specifies the remote device to be
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* destructed.
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*
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* @return The return value shall indicate if the device was successfully
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* destructed or if some failure occurred.
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* @retval SCI_STATUS This value is returned if the device is successfully
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* destructed.
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* @retval SCI_FAILURE_INVALID_REMOTE_DEVICE This value is returned if the
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* supplied device isn't valid (e.g. it's already been destoryed,
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* the handle isn't valid, etc.).
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*/
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SCI_STATUS scic_remote_device_destruct(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device
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);
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#if !defined(DISABLE_WIDE_PORTED_TARGETS)
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/**
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* @brief This method will attempt to set port width for a remote device.
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*
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* @param[in] remote_device This parameter specifies the remote device
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* object for which to set new port width.
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* @param[in] new_port_width The new port width to update.
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*
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* @return Indicate if the device port width was successfully updated.
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* @retval SCI_SUCCESS This value is returned when port width update was successful.
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* @retval SCI_FAILURE The port width update failed.
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*/
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SCI_STATUS scic_remote_device_set_port_width(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device,
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U8 new_port_width
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);
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/**
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* @brief This method retrieve the SCIC's record of a remote device's port width.
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*
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* @param[in] remote_device This parameter specifies the remote device
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* object for which to retrieve the port width value.
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*
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* @return The SCIC's record of a remote device's port width
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*/
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U8 scic_remote_device_get_port_width(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device
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);
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#define scic_remote_device_da_add_phy(device, phy) SCI_FAILURE
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#define scic_remote_device_ea_add_phy(device, response) SCI_FAILURE
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#define scic_remote_device_remove_phy(device) SCI_FAILURE
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#else // !defined(DISABLE_WIDE_PORTED_TARGETS)
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#define scic_remote_device_set_port_width(device, port_width) SCI_FAILURE
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#define scic_remote_device_get_port_width(device) (1)
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#define scic_remote_device_da_add_phy(device, phy) SCI_FAILURE
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#define scic_remote_device_ea_add_phy(device, response) SCI_FAILURE
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#define scic_remote_device_remove_phy(device) SCI_FAILURE
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#endif // !defined(DISABLE_WIDE_PORTED_TARGETS)
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/**
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* @brief This method will start the supplied remote device. This method
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* enables normal IO requests to flow through to the remote device.
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*
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* @param[in] remote_device This parameter specifies the device to be
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* started.
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* @param[in] timeout This parameter specifies the number of milliseconds
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* in which the start operation should complete.
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*
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* @return An indication of whether the device was successfully started.
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* @retval SCI_SUCCESS This value is returned if the device was successfully
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* started.
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* @retval SCI_FAILURE_INVALID_PHY This value is returned if the user attempts
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* to start the device when there have been no phys added to it.
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*/
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SCI_STATUS scic_remote_device_start(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device,
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U32 timeout
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);
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/**
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* @brief This method will stop both transmission and reception of link
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* activity for the supplied remote device. This method disables
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* normal IO requests from flowing through to the remote device.
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*
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* @param[in] remote_device This parameter specifies the device to be
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* stopped.
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* @param[in] timeout This parameter specifies the number of milliseconds
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* in which the stop operation should complete.
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*
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* @return An indication of whether the device was successfully stopped.
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* @retval SCI_SUCCESS This value is returned if the transmission and reception
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* for the device was successfully stopped.
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*/
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SCI_STATUS scic_remote_device_stop(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device,
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U32 timeout
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);
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/**
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* @brief This method will reset the device making it ready for operation.
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* This method must be called anytime the device is reset either
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* through a SMP phy control or a port hard reset request.
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*
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* @note This method does not actually cause the device hardware to be reset.
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* This method resets the software object so that it will be operational
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* after a device hardware reset completes.
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*
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* @param[in] remote_device This parameter specifies the device to be
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* reset.
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*
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* @return An indication of whether the device reset was accepted.
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* @retval SCI_SUCCESS This value is returned if the device reset is started.
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*/
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SCI_STATUS scic_remote_device_reset(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device
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);
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/**
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* @brief This method informs the device object that the reset operation is
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* complete and the device can resume operation again.
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*
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* @param[in] remote_device This parameter specifies the device which is to
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* be informed of the reset complete operation.
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*
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* @return An indication that the device is resuming operation.
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* @retval SCI_SUCCESS the device is resuming operation.
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*/
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SCI_STATUS scic_remote_device_reset_complete(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device
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);
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/**
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* @brief This method returns the suggested target reset timeout. SAS and
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* SATA devices have different timeout values in milliseconds for
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* target reset operations.
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*
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* @param[in] remote_device This parameter specifies the device which is to
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* be informed of the reset complete operation.
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*
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* @return The suggested reset timeout value for the specified target device
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* in milliseconds.
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*/
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U32 scic_remote_device_get_suggested_reset_timeout(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device
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);
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/**
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* @brief This method will set the maximum link speed to be utilized
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* when connections are established for the supplied remote device.
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*
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* @pre The remote device must previously have been stopped for this
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* call to succeed.
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*
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* @param[in] remote_device This parameter specifies the device for which
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* to set the maximum connection rate.
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* @param[in] connection_rate This parameter specifies the maximum link rate
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* to be utilized for all connections to the supplied remote
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* device.
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*
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* @return An indication as to whether the connection rate was successfully
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* updated.
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* @retval SCI_SUCCESS This value is returned if the connection rate was
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* successfully updated.
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* @retval SCI_FAILURE_INVALID_STATE This value is returned if the remote
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* device is not in a stopped state or some other state that allows
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* for a maximum connection rate change.
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*/
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SCI_STATUS scic_remote_device_set_max_connection_rate(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device,
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SCI_SAS_LINK_RATE connection_rate
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);
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/**
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* @brief This method simply returns the link rate at which communications
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* to the remote device occur.
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*
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* @param[in] remote_device This parameter specifies the device for which
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* to get the connection rate.
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*
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* @return Return the link rate at which we transfer for the supplied
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* remote device.
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*/
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SCI_SAS_LINK_RATE scic_remote_device_get_connection_rate(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device
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);
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/**
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* @brief This method will indicate which protocols are supported by this
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* remote device.
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*
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* @param[in] remote_device This parameter specifies the device for which
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* to return the protocol.
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* @param[out] protocols This parameter specifies the output values, from
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* the remote device object, which indicate the protocols
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* supported by the supplied remote_device.
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*
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* @return The type of protocols supported by this device. The values are
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* returned as part of a bit mask in order to allow for multi-protocol
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* support.
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*/
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void scic_remote_device_get_protocols(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device,
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SMP_DISCOVER_RESPONSE_PROTOCOLS_T * protocols
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);
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/**
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* @brief This method will indicate the SAS address for the remote device.
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*
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* @param[in] remote_device This parameter specifies the device for which
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* to return the SAS address.
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* @param[out] sas_address This parameter specifies a pointer to a SAS
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* address structure into which the core will copy the SAS
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* address for the remote device.
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*
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* @return none
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*/
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void scic_remote_device_get_sas_address(
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SCI_REMOTE_DEVICE_HANDLE_T remote_device,
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SCI_SAS_ADDRESS_T * sas_address
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);
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#if !defined(DISABLE_ATAPI)
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/**
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* This method first decide whether a device is a stp target, then
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* decode the signature fis of a DA STP device to tell whether it
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* is a standard end disk or an ATAPI device.
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*
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* @param[in] this_device The device whose type is to be decided.
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*
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* @return BOOL Indicate a device is ATAPI device or not.
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*/
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BOOL scic_remote_device_is_atapi(
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SCI_REMOTE_DEVICE_HANDLE_T device_handle
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);
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#else // !defined(DISABLE_ATAPI)
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#define scic_remote_device_is_atapi(device_handle) FALSE
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#endif // !defined(DISABLE_ATAPI)
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif // _SCIC_REMOTE_DEVICE_H_
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