/*
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* Header file for multi buffer SHA256 algorithm data structure
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*
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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) 2016 Intel Corporation.
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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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* Contact Information:
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* Megha Dey <megha.dey@linux.intel.com>
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*
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* BSD LICENSE
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*
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* Copyright(c) 2016 Intel Corporation.
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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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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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# Macros for defining data structures
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# Usage example
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#START_FIELDS # JOB_AES
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### name size align
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#FIELD _plaintext, 8, 8 # pointer to plaintext
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#FIELD _ciphertext, 8, 8 # pointer to ciphertext
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#FIELD _IV, 16, 8 # IV
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#FIELD _keys, 8, 8 # pointer to keys
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#FIELD _len, 4, 4 # length in bytes
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#FIELD _status, 4, 4 # status enumeration
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#FIELD _user_data, 8, 8 # pointer to user data
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#UNION _union, size1, align1, \
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# size2, align2, \
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# size3, align3, \
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# ...
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#END_FIELDS
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#%assign _JOB_AES_size _FIELD_OFFSET
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#%assign _JOB_AES_align _STRUCT_ALIGN
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#########################################################################
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# Alternate "struc-like" syntax:
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# STRUCT job_aes2
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# RES_Q .plaintext, 1
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# RES_Q .ciphertext, 1
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# RES_DQ .IV, 1
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# RES_B .nested, _JOB_AES_SIZE, _JOB_AES_ALIGN
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# RES_U .union, size1, align1, \
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# size2, align2, \
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# ...
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# ENDSTRUCT
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# # Following only needed if nesting
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# %assign job_aes2_size _FIELD_OFFSET
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# %assign job_aes2_align _STRUCT_ALIGN
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#
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# RES_* macros take a name, a count and an optional alignment.
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# The count in in terms of the base size of the macro, and the
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# default alignment is the base size.
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# The macros are:
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# Macro Base size
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# RES_B 1
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# RES_W 2
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# RES_D 4
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# RES_Q 8
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# RES_DQ 16
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# RES_Y 32
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# RES_Z 64
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#
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# RES_U defines a union. It's arguments are a name and two or more
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# pairs of "size, alignment"
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#
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# The two assigns are only needed if this structure is being nested
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# within another. Even if the assigns are not done, one can still use
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# STRUCT_NAME_size as the size of the structure.
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#
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# Note that for nesting, you still need to assign to STRUCT_NAME_size.
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#
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# The differences between this and using "struc" directly are that each
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# type is implicitly aligned to its natural length (although this can be
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# over-ridden with an explicit third parameter), and that the structure
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# is padded at the end to its overall alignment.
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#
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#########################################################################
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#ifndef _DATASTRUCT_ASM_
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#define _DATASTRUCT_ASM_
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#define PTR_SZ 8
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#define SHA512_DIGEST_WORD_SIZE 8
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#define SHA512_MB_MGR_NUM_LANES_AVX2 4
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#define NUM_SHA512_DIGEST_WORDS 8
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#define SZ4 4*SHA512_DIGEST_WORD_SIZE
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#define ROUNDS 80*SZ4
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#define SHA512_DIGEST_ROW_SIZE (SHA512_MB_MGR_NUM_LANES_AVX2 * 8)
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# START_FIELDS
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.macro START_FIELDS
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_FIELD_OFFSET = 0
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_STRUCT_ALIGN = 0
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.endm
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# FIELD name size align
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.macro FIELD name size align
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_FIELD_OFFSET = (_FIELD_OFFSET + (\align) - 1) & (~ ((\align)-1))
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\name = _FIELD_OFFSET
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_FIELD_OFFSET = _FIELD_OFFSET + (\size)
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.if (\align > _STRUCT_ALIGN)
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_STRUCT_ALIGN = \align
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.endif
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.endm
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# END_FIELDS
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.macro END_FIELDS
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_FIELD_OFFSET = (_FIELD_OFFSET + _STRUCT_ALIGN-1) & (~ (_STRUCT_ALIGN-1))
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.endm
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.macro STRUCT p1
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START_FIELDS
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.struc \p1
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.endm
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.macro ENDSTRUCT
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tmp = _FIELD_OFFSET
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END_FIELDS
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tmp = (_FIELD_OFFSET - ##tmp)
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.if (tmp > 0)
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.lcomm tmp
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.endm
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## RES_int name size align
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.macro RES_int p1 p2 p3
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name = \p1
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size = \p2
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align = .\p3
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_FIELD_OFFSET = (_FIELD_OFFSET + (align) - 1) & (~ ((align)-1))
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.align align
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.lcomm name size
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_FIELD_OFFSET = _FIELD_OFFSET + (size)
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.if (align > _STRUCT_ALIGN)
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_STRUCT_ALIGN = align
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.endif
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.endm
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# macro RES_B name, size [, align]
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.macro RES_B _name, _size, _align=1
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RES_int _name _size _align
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.endm
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# macro RES_W name, size [, align]
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.macro RES_W _name, _size, _align=2
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RES_int _name 2*(_size) _align
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.endm
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# macro RES_D name, size [, align]
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.macro RES_D _name, _size, _align=4
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RES_int _name 4*(_size) _align
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.endm
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# macro RES_Q name, size [, align]
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.macro RES_Q _name, _size, _align=8
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RES_int _name 8*(_size) _align
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.endm
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# macro RES_DQ name, size [, align]
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.macro RES_DQ _name, _size, _align=16
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RES_int _name 16*(_size) _align
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.endm
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# macro RES_Y name, size [, align]
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.macro RES_Y _name, _size, _align=32
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RES_int _name 32*(_size) _align
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.endm
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# macro RES_Z name, size [, align]
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.macro RES_Z _name, _size, _align=64
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RES_int _name 64*(_size) _align
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.endm
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#endif
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###################################################################
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### Define SHA512 Out Of Order Data Structures
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###################################################################
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START_FIELDS # LANE_DATA
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### name size align
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FIELD _job_in_lane, 8, 8 # pointer to job object
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END_FIELDS
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_LANE_DATA_size = _FIELD_OFFSET
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_LANE_DATA_align = _STRUCT_ALIGN
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####################################################################
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START_FIELDS # SHA512_ARGS_X4
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### name size align
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FIELD _digest, 8*8*4, 4 # transposed digest
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FIELD _data_ptr, 8*4, 8 # array of pointers to data
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END_FIELDS
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_SHA512_ARGS_X4_size = _FIELD_OFFSET
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_SHA512_ARGS_X4_align = _STRUCT_ALIGN
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#####################################################################
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START_FIELDS # MB_MGR
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### name size align
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FIELD _args, _SHA512_ARGS_X4_size, _SHA512_ARGS_X4_align
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FIELD _lens, 8*4, 8
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FIELD _unused_lanes, 8, 8
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FIELD _ldata, _LANE_DATA_size*4, _LANE_DATA_align
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END_FIELDS
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_MB_MGR_size = _FIELD_OFFSET
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_MB_MGR_align = _STRUCT_ALIGN
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_args_digest = _args + _digest
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_args_data_ptr = _args + _data_ptr
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#######################################################################
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#######################################################################
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#### Define constants
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#######################################################################
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#define STS_UNKNOWN 0
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#define STS_BEING_PROCESSED 1
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#define STS_COMPLETED 2
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#######################################################################
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#### Define JOB_SHA512 structure
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#######################################################################
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START_FIELDS # JOB_SHA512
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### name size align
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FIELD _buffer, 8, 8 # pointer to buffer
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FIELD _len, 8, 8 # length in bytes
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FIELD _result_digest, 8*8, 32 # Digest (output)
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FIELD _status, 4, 4
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FIELD _user_data, 8, 8
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END_FIELDS
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_JOB_SHA512_size = _FIELD_OFFSET
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_JOB_SHA512_align = _STRUCT_ALIGN
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