diff options
Diffstat (limited to 'arch/x86/crypto/sha-mb/sha_mb_mgr.h')
| -rw-r--r-- | arch/x86/crypto/sha-mb/sha_mb_mgr.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/arch/x86/crypto/sha-mb/sha_mb_mgr.h b/arch/x86/crypto/sha-mb/sha_mb_mgr.h new file mode 100644 index 000000000000..08ad1a9acfd7 --- /dev/null +++ b/arch/x86/crypto/sha-mb/sha_mb_mgr.h @@ -0,0 +1,110 @@ +/* + * 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 |