2 * Header file for multi buffer SHA256 algorithm manager
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.
9 * Copyright(c) 2016 Intel Corporation.
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.
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.
20 * Contact Information:
21 * Megha Dey <megha.dey@linux.intel.com>
25 * Copyright(c) 2016 Intel Corporation.
27 * Redistribution and use in source and binary forms, with or without
28 * modification, are permitted provided that the following conditions
31 * * Redistributions of source code must retain the above copyright
32 * notice, this list of conditions and the following disclaimer.
33 * * Redistributions in binary form must reproduce the above copyright
34 * notice, this list of conditions and the following disclaimer in
35 * the documentation and/or other materials provided with the
37 * * Neither the name of Intel Corporation nor the names of its
38 * contributors may be used to endorse or promote products derived
39 * from this software without specific prior written permission.
41 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
42 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
43 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
44 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
45 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
47 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
48 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
49 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
50 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
51 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
53 #ifndef __SHA_MB_MGR_H
54 #define __SHA_MB_MGR_H
56 #include <linux/types.h>
58 #define NUM_SHA256_DIGEST_WORDS 8
60 enum job_sts { STS_UNKNOWN = 0,
61 STS_BEING_PROCESSED = 1,
63 STS_INTERNAL_ERROR = 3,
70 u32 result_digest[NUM_SHA256_DIGEST_WORDS] __aligned(32);
75 /* SHA256 out-of-order scheduler */
77 /* typedef uint32_t sha8_digest_array[8][8]; */
79 struct sha256_args_x8 {
80 uint32_t digest[8][8];
84 struct sha256_lane_data {
85 struct job_sha256 *job_in_lane;
88 struct sha256_mb_mgr {
89 struct sha256_args_x8 args;
93 /* each byte is index (0...7) of unused lanes */
94 uint64_t unused_lanes;
95 /* byte 4 is set to FF as a flag */
96 struct sha256_lane_data ldata[8];
100 #define SHA256_MB_MGR_NUM_LANES_AVX2 8
102 void sha256_mb_mgr_init_avx2(struct sha256_mb_mgr *state);
103 struct job_sha256 *sha256_mb_mgr_submit_avx2(struct sha256_mb_mgr *state,
104 struct job_sha256 *job);
105 struct job_sha256 *sha256_mb_mgr_flush_avx2(struct sha256_mb_mgr *state);
106 struct job_sha256 *sha256_mb_mgr_get_comp_job_avx2(struct sha256_mb_mgr *state);