/* * Header file for multi buffer SHA1 algorithm manager * * 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) 2014 Intel Corporation. * * 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. * * Contact Information: * James Guilford <james.guilford@intel.com> * Tim Chen <tim.c.chen@linux.intel.com> * * BSD LICENSE * * Copyright(c) 2014 Intel Corporation. * * 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. * * Neither the name of Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * 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. */ #ifndef __SHA_MB_MGR_H #define __SHA_MB_MGR_H #include <linux/types.h> #define NUM_SHA1_DIGEST_WORDS 5 enum job_sts { STS_UNKNOWN = 0, STS_BEING_PROCESSED = 1, STS_COMPLETED = 2, STS_INTERNAL_ERROR = 3, STS_ERROR = 4 }; struct job_sha1 { u8 *buffer; u32 len; u32 result_digest[NUM_SHA1_DIGEST_WORDS] __aligned(32); enum job_sts status; void *user_data; }; /* SHA1 out-of-order scheduler */ /* typedef uint32_t sha1_digest_array[5][8]; */ struct sha1_args_x8 { uint32_t digest[5][8]; uint8_t *data_ptr[8]; }; struct sha1_lane_data { struct job_sha1 *job_in_lane; }; struct sha1_mb_mgr { struct sha1_args_x8 args; uint32_t lens[8]; /* each byte is index (0...7) of unused lanes */ uint64_t unused_lanes; /* byte 4 is set to FF as a flag */ struct sha1_lane_data ldata[8]; }; #define SHA1_MB_MGR_NUM_LANES_AVX2 8 void sha1_mb_mgr_init_avx2(struct sha1_mb_mgr *state); struct job_sha1 *sha1_mb_mgr_submit_avx2(struct sha1_mb_mgr *state, struct job_sha1 *job); struct job_sha1 *sha1_mb_mgr_flush_avx2(struct sha1_mb_mgr *state); struct job_sha1 *sha1_mb_mgr_get_comp_job_avx2(struct sha1_mb_mgr *state); #endif