]>
Commit | Line | Data |
---|---|---|
34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
3c67d83a | 22 | * Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
34dc7c2f BB |
23 | * Use is subject to license terms. |
24 | */ | |
3c67d83a TH |
25 | /* |
26 | * Copyright 2013 Saso Kiselkov. All rights reserved. | |
a6255b7f | 27 | * Copyright (c) 2016 by Delphix. All rights reserved. |
3c67d83a | 28 | */ |
34dc7c2f BB |
29 | #include <sys/zfs_context.h> |
30 | #include <sys/zio.h> | |
3c67d83a | 31 | #include <sys/sha2.h> |
a6255b7f | 32 | #include <sys/abd.h> |
38742209 | 33 | #include "qat.h" |
a6255b7f DQ |
34 | |
35 | static int | |
36 | sha_incremental(void *buf, size_t size, void *arg) | |
37 | { | |
38 | SHA2_CTX *ctx = arg; | |
39 | SHA2Update(ctx, buf, size); | |
40 | return (0); | |
41 | } | |
9c905c55 | 42 | |
3c67d83a TH |
43 | /*ARGSUSED*/ |
44 | void | |
a6255b7f | 45 | abd_checksum_SHA256(abd_t *abd, uint64_t size, |
3c67d83a | 46 | const void *ctx_template, zio_cksum_t *zcp) |
9c905c55 | 47 | { |
38742209 | 48 | int ret; |
3c67d83a TH |
49 | SHA2_CTX ctx; |
50 | zio_cksum_t tmp; | |
51 | ||
38742209 TC |
52 | if (qat_checksum_use_accel(size)) { |
53 | uint8_t *buf = abd_borrow_buf_copy(abd, size); | |
54 | ret = qat_checksum(ZIO_CHECKSUM_SHA256, buf, size, &tmp); | |
55 | abd_return_buf(abd, buf, size); | |
56 | if (ret == CPA_STATUS_SUCCESS) | |
57 | goto bswap; | |
58 | ||
59 | /* If the hardware implementation fails fall back to software */ | |
60 | } | |
61 | ||
3c67d83a | 62 | SHA2Init(SHA256, &ctx); |
a6255b7f | 63 | (void) abd_iterate_func(abd, 0, size, sha_incremental, &ctx); |
3c67d83a TH |
64 | SHA2Final(&tmp, &ctx); |
65 | ||
38742209 | 66 | bswap: |
3c67d83a TH |
67 | /* |
68 | * A prior implementation of this function had a | |
69 | * private SHA256 implementation always wrote things out in | |
70 | * Big Endian and there wasn't a byteswap variant of it. | |
a6255b7f DQ |
71 | * To preserve on disk compatibility we need to force that |
72 | * behavior. | |
3c67d83a TH |
73 | */ |
74 | zcp->zc_word[0] = BE_64(tmp.zc_word[0]); | |
75 | zcp->zc_word[1] = BE_64(tmp.zc_word[1]); | |
76 | zcp->zc_word[2] = BE_64(tmp.zc_word[2]); | |
77 | zcp->zc_word[3] = BE_64(tmp.zc_word[3]); | |
9c905c55 | 78 | } |
34dc7c2f | 79 | |
3c67d83a | 80 | /*ARGSUSED*/ |
34dc7c2f | 81 | void |
a6255b7f | 82 | abd_checksum_SHA512_native(abd_t *abd, uint64_t size, |
3c67d83a | 83 | const void *ctx_template, zio_cksum_t *zcp) |
34dc7c2f | 84 | { |
3c67d83a | 85 | SHA2_CTX ctx; |
9c905c55 | 86 | |
3c67d83a | 87 | SHA2Init(SHA512_256, &ctx); |
a6255b7f | 88 | (void) abd_iterate_func(abd, 0, size, sha_incremental, &ctx); |
3c67d83a TH |
89 | SHA2Final(zcp, &ctx); |
90 | } | |
9c905c55 | 91 | |
3c67d83a TH |
92 | /*ARGSUSED*/ |
93 | void | |
a6255b7f | 94 | abd_checksum_SHA512_byteswap(abd_t *abd, uint64_t size, |
3c67d83a TH |
95 | const void *ctx_template, zio_cksum_t *zcp) |
96 | { | |
97 | zio_cksum_t tmp; | |
9c905c55 | 98 | |
a6255b7f | 99 | abd_checksum_SHA512_native(abd, size, ctx_template, &tmp); |
3c67d83a TH |
100 | zcp->zc_word[0] = BSWAP_64(tmp.zc_word[0]); |
101 | zcp->zc_word[1] = BSWAP_64(tmp.zc_word[1]); | |
102 | zcp->zc_word[2] = BSWAP_64(tmp.zc_word[2]); | |
103 | zcp->zc_word[3] = BSWAP_64(tmp.zc_word[3]); | |
34dc7c2f | 104 | } |