diff options
Diffstat (limited to 'sys/contrib/opensolaris/uts/common/fs/zfs/fletcher.c')
-rw-r--r-- | sys/contrib/opensolaris/uts/common/fs/zfs/fletcher.c | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/sys/contrib/opensolaris/uts/common/fs/zfs/fletcher.c b/sys/contrib/opensolaris/uts/common/fs/zfs/fletcher.c deleted file mode 100644 index edda3c9..0000000 --- a/sys/contrib/opensolaris/uts/common/fs/zfs/fletcher.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -/* - * Copyright 2006 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -#pragma ident "%Z%%M% %I% %E% SMI" - -#include <sys/types.h> -#include <sys/sysmacros.h> -#include <sys/byteorder.h> -#include <sys/spa.h> - -void -fletcher_2_native(const void *buf, uint64_t size, zio_cksum_t *zcp) -{ - const uint64_t *ip = buf; - const uint64_t *ipend = ip + (size / sizeof (uint64_t)); - uint64_t a0, b0, a1, b1; - - for (a0 = b0 = a1 = b1 = 0; ip < ipend; ip += 2) { - a0 += ip[0]; - a1 += ip[1]; - b0 += a0; - b1 += a1; - } - - ZIO_SET_CHECKSUM(zcp, a0, a1, b0, b1); -} - -void -fletcher_2_byteswap(const void *buf, uint64_t size, zio_cksum_t *zcp) -{ - const uint64_t *ip = buf; - const uint64_t *ipend = ip + (size / sizeof (uint64_t)); - uint64_t a0, b0, a1, b1; - - for (a0 = b0 = a1 = b1 = 0; ip < ipend; ip += 2) { - a0 += BSWAP_64(ip[0]); - a1 += BSWAP_64(ip[1]); - b0 += a0; - b1 += a1; - } - - ZIO_SET_CHECKSUM(zcp, a0, a1, b0, b1); -} - -void -fletcher_4_native(const void *buf, uint64_t size, zio_cksum_t *zcp) -{ - const uint32_t *ip = buf; - const uint32_t *ipend = ip + (size / sizeof (uint32_t)); - uint64_t a, b, c, d; - - for (a = b = c = d = 0; ip < ipend; ip++) { - a += ip[0]; - b += a; - c += b; - d += c; - } - - ZIO_SET_CHECKSUM(zcp, a, b, c, d); -} - -void -fletcher_4_byteswap(const void *buf, uint64_t size, zio_cksum_t *zcp) -{ - const uint32_t *ip = buf; - const uint32_t *ipend = ip + (size / sizeof (uint32_t)); - uint64_t a, b, c, d; - - for (a = b = c = d = 0; ip < ipend; ip++) { - a += BSWAP_32(ip[0]); - b += a; - c += b; - d += c; - } - - ZIO_SET_CHECKSUM(zcp, a, b, c, d); -} - -void -fletcher_4_incremental_native(const void *buf, uint64_t size, - zio_cksum_t *zcp) -{ - const uint32_t *ip = buf; - const uint32_t *ipend = ip + (size / sizeof (uint32_t)); - uint64_t a, b, c, d; - - a = zcp->zc_word[0]; - b = zcp->zc_word[1]; - c = zcp->zc_word[2]; - d = zcp->zc_word[3]; - - for (; ip < ipend; ip++) { - a += ip[0]; - b += a; - c += b; - d += c; - } - - ZIO_SET_CHECKSUM(zcp, a, b, c, d); -} - -void -fletcher_4_incremental_byteswap(const void *buf, uint64_t size, - zio_cksum_t *zcp) -{ - const uint32_t *ip = buf; - const uint32_t *ipend = ip + (size / sizeof (uint32_t)); - uint64_t a, b, c, d; - - a = zcp->zc_word[0]; - b = zcp->zc_word[1]; - c = zcp->zc_word[2]; - d = zcp->zc_word[3]; - - for (; ip < ipend; ip++) { - a += BSWAP_32(ip[0]); - b += a; - c += b; - d += c; - } - - ZIO_SET_CHECKSUM(zcp, a, b, c, d); -} |