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.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or https://opensource.org/licenses/CDDL-1.0.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
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]
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Copyright 2013 Saso Kiselkov. All rights reserved.
25 * Copyright (c) 2016 by Delphix. All rights reserved.
28 #include <sys/zfs_context.h>
29 #include <sys/zio_checksum.h>
35 sha_incremental(void *buf, size_t size, void *arg)
38 SHA2Update(ctx, buf, size);
43 abd_checksum_sha256(abd_t *abd, uint64_t size,
44 const void *ctx_template, zio_cksum_t *zcp)
51 if (qat_checksum_use_accel(size)) {
52 uint8_t *buf = abd_borrow_buf_copy(abd, size);
53 ret = qat_checksum(ZIO_CHECKSUM_SHA256, buf, size, &tmp);
54 abd_return_buf(abd, buf, size);
55 if (ret == CPA_STATUS_SUCCESS)
58 /* If the hardware implementation fails fall back to software */
61 SHA2Init(SHA256, &ctx);
62 (void) abd_iterate_func(abd, 0, size, sha_incremental, &ctx);
63 SHA2Final(&tmp, &ctx);
67 * A prior implementation of this function had a
68 * private SHA256 implementation always wrote things out in
69 * Big Endian and there wasn't a byteswap variant of it.
70 * To preserve on disk compatibility we need to force that
73 zcp->zc_word[0] = BE_64(tmp.zc_word[0]);
74 zcp->zc_word[1] = BE_64(tmp.zc_word[1]);
75 zcp->zc_word[2] = BE_64(tmp.zc_word[2]);
76 zcp->zc_word[3] = BE_64(tmp.zc_word[3]);
80 abd_checksum_sha512_native(abd_t *abd, uint64_t size,
81 const void *ctx_template, zio_cksum_t *zcp)
86 SHA2Init(SHA512_256, &ctx);
87 (void) abd_iterate_func(abd, 0, size, sha_incremental, &ctx);
92 abd_checksum_sha512_byteswap(abd_t *abd, uint64_t size,
93 const void *ctx_template, zio_cksum_t *zcp)
97 abd_checksum_sha512_native(abd, size, ctx_template, &tmp);
98 zcp->zc_word[0] = BSWAP_64(tmp.zc_word[0]);
99 zcp->zc_word[1] = BSWAP_64(tmp.zc_word[1]);
100 zcp->zc_word[2] = BSWAP_64(tmp.zc_word[2]);
101 zcp->zc_word[3] = BSWAP_64(tmp.zc_word[3]);