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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.
*
* $FreeBSD$
*/
/**
* @file
*
* @brief This field defines the SCU format of an unsolicited frame (UF). A
* UF is a frame received by the SCU for which there is no known
* corresponding task context (TC).
*/
#ifndef _SCU_UNSOLICITED_FRAME_H_
#define _SCU_UNSOLICITED_FRAME_H_
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
#include <dev/isci/scil/sci_types.h>
/**
* This constant defines the number of DWORDS found the unsolicited frame
* header data member.
*/
#define SCU_UNSOLICITED_FRAME_HEADER_DATA_DWORDS 15
/**
* @struct SCU_UNSOLICITED_FRAME_HEADER
*
* This structure delineates the format of an unsolicited frame header.
* The first DWORD are UF attributes defined by the silicon architecture.
* The data depicts actual header information received on the link.
*/
typedef struct SCU_UNSOLICITED_FRAME_HEADER
{
/**
* This field indicates if there is an Initiator Index Table entry with
* which this header is associated.
*/
U32 iit_exists : 1;
/**
* This field simply indicates the protocol type (i.e. SSP, STP, SMP).
*/
U32 protocol_type : 3;
/**
* This field indicates if the frame is an address frame (IAF or OAF)
* or if it is a information unit frame.
*/
U32 is_address_frame : 1;
/**
* This field simply indicates the connection rate at which the frame
* was received.
*/
U32 connection_rate : 4;
U32 reserved : 23;
/**
* This field represents the actual header data received on the link.
*/
U32 data[SCU_UNSOLICITED_FRAME_HEADER_DATA_DWORDS];
} SCU_UNSOLICITED_FRAME_HEADER_T;
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // _SCU_UNSOLICITED_FRAME_H_
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