1/* 2 * Header file for multi buffer SHA1 algorithm manager 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#ifndef __SHA_MB_MGR_H 55#define __SHA_MB_MGR_H 56 57 58#include <linux/types.h> 59 60#define NUM_SHA1_DIGEST_WORDS 5 61 62enum job_sts { STS_UNKNOWN = 0, 63 STS_BEING_PROCESSED = 1, 64 STS_COMPLETED = 2, 65 STS_INTERNAL_ERROR = 3, 66 STS_ERROR = 4 67}; 68 69struct job_sha1 { 70 u8 *buffer; 71 u32 len; 72 u32 result_digest[NUM_SHA1_DIGEST_WORDS] __aligned(32); 73 enum job_sts status; 74 void *user_data; 75}; 76 77/* SHA1 out-of-order scheduler */ 78 79/* typedef uint32_t sha1_digest_array[5][8]; */ 80 81struct sha1_args_x8 { 82 uint32_t digest[5][8]; 83 uint8_t *data_ptr[8]; 84}; 85 86struct sha1_lane_data { 87 struct job_sha1 *job_in_lane; 88}; 89 90struct sha1_mb_mgr { 91 struct sha1_args_x8 args; 92 93 uint32_t lens[8]; 94 95 /* each byte is index (0...7) of unused lanes */ 96 uint64_t unused_lanes; 97 /* byte 4 is set to FF as a flag */ 98 struct sha1_lane_data ldata[8]; 99}; 100 101 102#define SHA1_MB_MGR_NUM_LANES_AVX2 8 103 104void sha1_mb_mgr_init_avx2(struct sha1_mb_mgr *state); 105struct job_sha1 *sha1_mb_mgr_submit_avx2(struct sha1_mb_mgr *state, 106 struct job_sha1 *job); 107struct job_sha1 *sha1_mb_mgr_flush_avx2(struct sha1_mb_mgr *state); 108struct job_sha1 *sha1_mb_mgr_get_comp_job_avx2(struct sha1_mb_mgr *state); 109 110#endif 111