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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
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*/
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/*
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* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
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*/
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#ifndef _ZIO_H
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#define _ZIO_H
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#include <zfs/spa.h>
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#define ZEC_MAGIC 0x210da7ab10c7a11ULL /* zio data bloc tail */
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typedef struct zio_eck {
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uint64_t zec_magic; /* for validation, endianness */
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zio_cksum_t zec_cksum; /* 256-bit checksum */
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} zio_eck_t;
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/*
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* Gang block headers are self-checksumming and contain an array
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* of block pointers.
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*/
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#define SPA_GANGBLOCKSIZE SPA_MINBLOCKSIZE
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#define SPA_GBH_NBLKPTRS ((SPA_GANGBLOCKSIZE - \
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sizeof(zio_eck_t)) / sizeof(blkptr_t))
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#define SPA_GBH_FILLER ((SPA_GANGBLOCKSIZE - \
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sizeof(zio_eck_t) - \
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(SPA_GBH_NBLKPTRS * sizeof(blkptr_t))) /\
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sizeof(uint64_t))
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#define ZIO_GET_IOSIZE(zio) \
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(BP_IS_GANG((zio)->io_bp) ? \
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SPA_GANGBLOCKSIZE : BP_GET_PSIZE((zio)->io_bp))
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typedef struct zio_gbh {
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blkptr_t zg_blkptr[SPA_GBH_NBLKPTRS];
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uint64_t zg_filler[SPA_GBH_FILLER];
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zio_eck_t zg_tail;
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} zio_gbh_phys_t;
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enum zio_checksum {
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ZIO_CHECKSUM_INHERIT = 0,
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ZIO_CHECKSUM_ON,
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ZIO_CHECKSUM_OFF,
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ZIO_CHECKSUM_LABEL,
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ZIO_CHECKSUM_GANG_HEADER,
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ZIO_CHECKSUM_ZILOG,
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ZIO_CHECKSUM_FLETCHER_2,
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ZIO_CHECKSUM_FLETCHER_4,
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ZIO_CHECKSUM_SHA256,
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ZIO_CHECKSUM_ZILOG2,
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ZIO_CHECKSUM_FUNCTIONS
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};
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#define ZIO_CHECKSUM_ON_VALUE ZIO_CHECKSUM_FLETCHER_2
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#define ZIO_CHECKSUM_DEFAULT ZIO_CHECKSUM_ON
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enum zio_compress {
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ZIO_COMPRESS_INHERIT = 0,
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ZIO_COMPRESS_ON,
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ZIO_COMPRESS_OFF,
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ZIO_COMPRESS_LZJB,
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ZIO_COMPRESS_EMPTY,
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ZIO_COMPRESS_GZIP1,
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ZIO_COMPRESS_GZIP2,
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ZIO_COMPRESS_GZIP3,
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ZIO_COMPRESS_GZIP4,
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ZIO_COMPRESS_GZIP5,
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ZIO_COMPRESS_GZIP6,
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ZIO_COMPRESS_GZIP7,
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ZIO_COMPRESS_GZIP8,
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ZIO_COMPRESS_GZIP9,
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ZIO_COMPRESS_FUNCTIONS
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};
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#endif /* _ZIO_H */
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