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1/*
2 * Header file for multi buffer SHA1 algorithm data structure
3 *
4 * This file is provided under a dual BSD/GPLv2 license.  When using or
5 * redistributing this file, you may do so under either license.
6 *
7 * GPL LICENSE SUMMARY
8 *
9 *  Copyright(c) 2014 Intel Corporation.
10 *
11 *  This program is free software; you can redistribute it and/or modify
12 *  it under the terms of version 2 of the GNU General Public License as
13 *  published by the Free Software Foundation.
14 *
15 *  This program is distributed in the hope that it will be useful, but
16 *  WITHOUT ANY WARRANTY; without even the implied warranty of
17 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18 *  General Public License for more details.
19 *
20 *  Contact Information:
21 *      James Guilford <james.guilford@intel.com>
22 *	Tim Chen <tim.c.chen@linux.intel.com>
23 *
24 *  BSD LICENSE
25 *
26 *  Copyright(c) 2014 Intel Corporation.
27 *
28 *  Redistribution and use in source and binary forms, with or without
29 *  modification, are permitted provided that the following conditions
30 *  are met:
31 *
32 *    * Redistributions of source code must retain the above copyright
33 *      notice, this list of conditions and the following disclaimer.
34 *    * Redistributions in binary form must reproduce the above copyright
35 *      notice, this list of conditions and the following disclaimer in
36 *      the documentation and/or other materials provided with the
37 *      distribution.
38 *    * Neither the name of Intel Corporation nor the names of its
39 *      contributors may be used to endorse or promote products derived
40 *      from this software without specific prior written permission.
41 *
42 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
43 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
44 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
45 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
46 *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
47 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
48 *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
49 *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
50 *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
51 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
52 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
53 */
54
55# Macros for defining data structures
56
57# Usage example
58
59#START_FIELDS	# JOB_AES
60###	name		size	align
61#FIELD	_plaintext,	8,	8	# pointer to plaintext
62#FIELD	_ciphertext,	8,	8	# pointer to ciphertext
63#FIELD	_IV,		16,	8	# IV
64#FIELD	_keys,		8,	8	# pointer to keys
65#FIELD	_len,		4,	4	# length in bytes
66#FIELD	_status,	4,	4	# status enumeration
67#FIELD	_user_data,	8,	8	# pointer to user data
68#UNION  _union,         size1,  align1, \
69#	                size2,  align2, \
70#	                size3,  align3, \
71#	                ...
72#END_FIELDS
73#%assign _JOB_AES_size	_FIELD_OFFSET
74#%assign _JOB_AES_align	_STRUCT_ALIGN
75
76#########################################################################
77
78# Alternate "struc-like" syntax:
79#	STRUCT job_aes2
80#	RES_Q	.plaintext,	1
81#	RES_Q	.ciphertext,	1
82#	RES_DQ	.IV,		1
83#	RES_B	.nested,	_JOB_AES_SIZE, _JOB_AES_ALIGN
84#	RES_U	.union,		size1, align1, \
85#				size2, align2, \
86#				...
87#	ENDSTRUCT
88#	# Following only needed if nesting
89#	%assign job_aes2_size	_FIELD_OFFSET
90#	%assign job_aes2_align	_STRUCT_ALIGN
91#
92# RES_* macros take a name, a count and an optional alignment.
93# The count in in terms of the base size of the macro, and the
94# default alignment is the base size.
95# The macros are:
96# Macro    Base size
97# RES_B	    1
98# RES_W	    2
99# RES_D     4
100# RES_Q     8
101# RES_DQ   16
102# RES_Y    32
103# RES_Z    64
104#
105# RES_U defines a union. It's arguments are a name and two or more
106# pairs of "size, alignment"
107#
108# The two assigns are only needed if this structure is being nested
109# within another. Even if the assigns are not done, one can still use
110# STRUCT_NAME_size as the size of the structure.
111#
112# Note that for nesting, you still need to assign to STRUCT_NAME_size.
113#
114# The differences between this and using "struc" directly are that each
115# type is implicitly aligned to its natural length (although this can be
116# over-ridden with an explicit third parameter), and that the structure
117# is padded at the end to its overall alignment.
118#
119
120#########################################################################
121
122#ifndef _SHA1_MB_MGR_DATASTRUCT_ASM_
123#define _SHA1_MB_MGR_DATASTRUCT_ASM_
124
125## START_FIELDS
126.macro START_FIELDS
127 _FIELD_OFFSET = 0
128 _STRUCT_ALIGN = 0
129.endm
130
131## FIELD name size align
132.macro FIELD name size align
133 _FIELD_OFFSET = (_FIELD_OFFSET + (\align) - 1) & (~ ((\align)-1))
134 \name	= _FIELD_OFFSET
135 _FIELD_OFFSET = _FIELD_OFFSET + (\size)
136.if (\align > _STRUCT_ALIGN)
137 _STRUCT_ALIGN = \align
138.endif
139.endm
140
141## END_FIELDS
142.macro END_FIELDS
143 _FIELD_OFFSET = (_FIELD_OFFSET + _STRUCT_ALIGN-1) & (~ (_STRUCT_ALIGN-1))
144.endm
145
146########################################################################
147
148.macro STRUCT p1
149START_FIELDS
150.struc \p1
151.endm
152
153.macro ENDSTRUCT
154 tmp = _FIELD_OFFSET
155 END_FIELDS
156 tmp = (_FIELD_OFFSET - %%tmp)
157.if (tmp > 0)
158	.lcomm	tmp
159.endif
160.endstruc
161.endm
162
163## RES_int name size align
164.macro RES_int p1 p2 p3
165 name = \p1
166 size = \p2
167 align = .\p3
168
169 _FIELD_OFFSET = (_FIELD_OFFSET + (align) - 1) & (~ ((align)-1))
170.align align
171.lcomm name size
172 _FIELD_OFFSET = _FIELD_OFFSET + (size)
173.if (align > _STRUCT_ALIGN)
174 _STRUCT_ALIGN = align
175.endif
176.endm
177
178
179
180# macro RES_B name, size [, align]
181.macro RES_B _name, _size, _align=1
182RES_int _name _size _align
183.endm
184
185# macro RES_W name, size [, align]
186.macro RES_W _name, _size, _align=2
187RES_int _name 2*(_size) _align
188.endm
189
190# macro RES_D name, size [, align]
191.macro RES_D _name, _size, _align=4
192RES_int _name 4*(_size) _align
193.endm
194
195# macro RES_Q name, size [, align]
196.macro RES_Q _name, _size, _align=8
197RES_int _name 8*(_size) _align
198.endm
199
200# macro RES_DQ name, size [, align]
201.macro RES_DQ _name, _size, _align=16
202RES_int _name 16*(_size) _align
203.endm
204
205# macro RES_Y name, size [, align]
206.macro RES_Y _name, _size, _align=32
207RES_int _name 32*(_size) _align
208.endm
209
210# macro RES_Z name, size [, align]
211.macro RES_Z _name, _size, _align=64
212RES_int _name 64*(_size) _align
213.endm
214
215
216#endif
217
218########################################################################
219#### Define constants
220########################################################################
221
222########################################################################
223#### Define SHA1 Out Of Order Data Structures
224########################################################################
225
226START_FIELDS    # LANE_DATA
227###     name            size    align
228FIELD   _job_in_lane,   8,      8       # pointer to job object
229END_FIELDS
230
231_LANE_DATA_size = _FIELD_OFFSET
232_LANE_DATA_align = _STRUCT_ALIGN
233
234########################################################################
235
236START_FIELDS    # SHA1_ARGS_X8
237###     name            size    align
238FIELD   _digest,        4*5*8,  16      # transposed digest
239FIELD   _data_ptr,      8*8,    8       # array of pointers to data
240END_FIELDS
241
242_SHA1_ARGS_X4_size =     _FIELD_OFFSET
243_SHA1_ARGS_X4_align =    _STRUCT_ALIGN
244_SHA1_ARGS_X8_size =     _FIELD_OFFSET
245_SHA1_ARGS_X8_align =    _STRUCT_ALIGN
246
247########################################################################
248
249START_FIELDS    # MB_MGR
250###     name            size    align
251FIELD   _args,          _SHA1_ARGS_X4_size, _SHA1_ARGS_X4_align
252FIELD   _lens,          4*8,    8
253FIELD   _unused_lanes,  8,      8
254FIELD   _ldata,         _LANE_DATA_size*8, _LANE_DATA_align
255END_FIELDS
256
257_MB_MGR_size =   _FIELD_OFFSET
258_MB_MGR_align =  _STRUCT_ALIGN
259
260_args_digest    =     _args + _digest
261_args_data_ptr  =     _args + _data_ptr
262
263
264########################################################################
265#### Define constants
266########################################################################
267
268#define STS_UNKNOWN             0
269#define STS_BEING_PROCESSED     1
270#define STS_COMPLETED           2
271
272########################################################################
273#### Define JOB_SHA1 structure
274########################################################################
275
276START_FIELDS    # JOB_SHA1
277
278###     name                            size    align
279FIELD   _buffer,                        8,      8       # pointer to buffer
280FIELD   _len,                           4,      4       # length in bytes
281FIELD   _result_digest,                 5*4,    32      # Digest (output)
282FIELD   _status,                        4,      4
283FIELD   _user_data,                     8,      8
284END_FIELDS
285
286_JOB_SHA1_size =  _FIELD_OFFSET
287_JOB_SHA1_align = _STRUCT_ALIGN
288