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--- old/usr/src/grub/grub-0.97/stage2/zfs-include/zio.h
+++ new/usr/src/grub/grub-0.97/stage2/zfs-include/zio.h
1 1 /*
2 2 * GRUB -- GRand Unified Bootloader
3 3 * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
4 4 *
5 5 * This program is free software; you can redistribute it and/or modify
6 6 * it under the terms of the GNU General Public License as published by
7 7 * the Free Software Foundation; either version 2 of the License, or
8 8 * (at your option) any later version.
9 9 *
10 10 * This program is distributed in the hope that it will be useful,
11 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 13 * GNU General Public License for more details.
14 14 *
15 15 * You should have received a copy of the GNU General Public License
16 16 * along with this program; if not, write to the Free Software
17 17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 18 */
19 19 /*
20 20 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
21 21 * Use is subject to license terms.
22 22 */
23 +/*
24 + * Copyright 2013 by Saso Kiselkov. All rights reserved.
25 + */
23 26
24 27 #ifndef _ZIO_H
25 28 #define _ZIO_H
26 29
27 30 #define ZEC_MAGIC 0x210da7ab10c7a11ULL /* zio data bloc tail */
28 31
29 32 typedef struct zio_eck {
30 33 uint64_t zec_magic; /* for validation, endianness */
31 34 zio_cksum_t zec_cksum; /* 256-bit checksum */
32 35 } zio_eck_t;
33 36
34 37 /*
35 38 * Gang block headers are self-checksumming and contain an array
36 39 * of block pointers.
37 40 */
38 41 #define SPA_GANGBLOCKSIZE SPA_MINBLOCKSIZE
39 42 #define SPA_GBH_NBLKPTRS ((SPA_GANGBLOCKSIZE - \
40 43 sizeof (zio_eck_t)) / sizeof (blkptr_t))
41 44 #define SPA_GBH_FILLER ((SPA_GANGBLOCKSIZE - \
42 45 sizeof (zio_eck_t) - \
43 46 (SPA_GBH_NBLKPTRS * sizeof (blkptr_t))) /\
44 47 sizeof (uint64_t))
45 48
46 49 #define ZIO_GET_IOSIZE(zio) \
47 50 (BP_IS_GANG((zio)->io_bp) ? \
48 51 SPA_GANGBLOCKSIZE : BP_GET_PSIZE((zio)->io_bp))
49 52
50 53 typedef struct zio_gbh {
51 54 blkptr_t zg_blkptr[SPA_GBH_NBLKPTRS];
52 55 uint64_t zg_filler[SPA_GBH_FILLER];
53 56 zio_eck_t zg_tail;
54 57 } zio_gbh_phys_t;
55 58
56 59 enum zio_checksum {
57 60 ZIO_CHECKSUM_INHERIT = 0,
58 61 ZIO_CHECKSUM_ON,
59 62 ZIO_CHECKSUM_OFF,
60 63 ZIO_CHECKSUM_LABEL,
61 64 ZIO_CHECKSUM_GANG_HEADER,
62 65 ZIO_CHECKSUM_ZILOG,
63 66 ZIO_CHECKSUM_FLETCHER_2,
64 67 ZIO_CHECKSUM_FLETCHER_4,
65 68 ZIO_CHECKSUM_SHA256,
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66 69 ZIO_CHECKSUM_ZILOG2,
67 70 ZIO_CHECKSUM_FUNCTIONS
68 71 };
69 72
70 73 enum zio_compress {
71 74 ZIO_COMPRESS_INHERIT = 0,
72 75 ZIO_COMPRESS_ON,
73 76 ZIO_COMPRESS_OFF,
74 77 ZIO_COMPRESS_LZJB,
75 78 ZIO_COMPRESS_EMPTY,
79 + ZIO_COMPRESS_GZIP_1,
80 + ZIO_COMPRESS_GZIP_2,
81 + ZIO_COMPRESS_GZIP_3,
82 + ZIO_COMPRESS_GZIP_4,
83 + ZIO_COMPRESS_GZIP_5,
84 + ZIO_COMPRESS_GZIP_6,
85 + ZIO_COMPRESS_GZIP_7,
86 + ZIO_COMPRESS_GZIP_8,
87 + ZIO_COMPRESS_GZIP_9,
88 + ZIO_COMPRESS_ZLE,
89 + ZIO_COMPRESS_LZ4,
76 90 ZIO_COMPRESS_FUNCTIONS
77 91 };
78 92
79 93 #endif /* _ZIO_H */
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