From 4d3c95f5ea7c737a21cd6b9c59435ee693b3f127 Mon Sep 17 00:00:00 2001 From: Jorgen Lundman Date: Thu, 19 Jul 2012 20:48:25 +0000 Subject: zfs: Add ZFS filesystem support U-Boot port is based on sources forked from GRUB-0.97 by Sun in 2004, which can be found here: http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/grub/grub-0.97/stage2/zfs-include/zfs.h Released by Sun for GRUB under the license: * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. GRUB official releases include ZFS in version: ftp://alpha.gnu.org/gnu/grub/grub-1.99~rc1.tar.gz And patched against GRUB Bazaar repository for ashift fixes (4KB HDDs) more conveniently found at github: https://github.com/pendor/grub-zfs/commit/e7b6ef3ac3b9685ac4c394c897b1d4221b7381f1 Signed-off-by: Jorgen Lundman --- include/zfs_common.h | 109 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 include/zfs_common.h (limited to 'include/zfs_common.h') diff --git a/include/zfs_common.h b/include/zfs_common.h new file mode 100644 index 0000000..04e73d0 --- /dev/null +++ b/include/zfs_common.h @@ -0,0 +1,109 @@ +/* + * ZFS filesystem port for Uboot by + * Jorgen Lundman + * + * zfsfs support + * made from existing GRUB Sources by Sun, GNU and others. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef __ZFS_COMMON__ +#define __ZFS_COMMON__ + +#define SECTOR_SIZE 0x200 +#define SECTOR_BITS 9 + + +typedef enum zfs_endian { + UNKNOWN_ENDIAN = -2, + LITTLE_ENDIAN = -1, + BIG_ENDIAN = 0 +} zfs_endian_t; + + +/* Endian macros. */ +#define zfs_to_cpu16(x, a) (((a) == BIG_ENDIAN) ? be16_to_cpu(x) \ + : le16_to_cpu(x)) +#define cpu_to_zfs16(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be16(x) \ + : cpu_to_le16(x)) + +#define zfs_to_cpu32(x, a) (((a) == BIG_ENDIAN) ? be32_to_cpu(x) \ + : le32_to_cpu(x)) +#define cpu_to_zfs32(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be32(x) \ + : cpu_to_le32(x)) + +#define zfs_to_cpu64(x, a) (((a) == BIG_ENDIAN) ? be64_to_cpu(x) \ + : le64_to_cpu(x)) +#define cpu_to_zfs64(x, a) (((a) == BIG_ENDIAN) ? cpu_to_be64(x) \ + : cpu_to_le64(x)) + + +enum zfs_errors { + ZFS_ERR_NONE = 0, + ZFS_ERR_NOT_IMPLEMENTED_YET = -1, + ZFS_ERR_BAD_FS = -2, + ZFS_ERR_OUT_OF_MEMORY = -3, + ZFS_ERR_FILE_NOT_FOUND = -4, + ZFS_ERR_BAD_FILE_TYPE = -5, + ZFS_ERR_OUT_OF_RANGE = -6, +}; + +struct zfs_filesystem { + + /* Block Device Descriptor */ + block_dev_desc_t *dev_desc; +}; + + +extern block_dev_desc_t *zfs_dev_desc; + +struct device_s { + uint64_t part_length; +}; +typedef struct device_s *device_t; + +struct zfs_file { + device_t device; + uint64_t size; + void *data; + uint64_t offset; +}; + +typedef struct zfs_file *zfs_file_t; + +struct zfs_dirhook_info { + int dir; + int mtimeset; + time_t mtime; + time_t mtime2; +}; + + + + +struct zfs_filesystem *zfsget_fs(void); +int init_fs(block_dev_desc_t *dev_desc); +void deinit_fs(block_dev_desc_t *dev_desc); +int zfs_open(zfs_file_t, const char *filename); +uint64_t zfs_read(zfs_file_t, char *buf, uint64_t len); +struct zfs_data *zfs_mount(device_t); +int zfs_close(zfs_file_t); +int zfs_ls(device_t dev, const char *path, + int (*hook) (const char *, const struct zfs_dirhook_info *)); +int zfs_devread(int sector, int byte_offset, int byte_len, char *buf); +int zfs_set_blk_dev(block_dev_desc_t *rbdd, int part); +void zfs_unmount(struct zfs_data *data); +int lzjb_decompress(void *, void *, uint32_t, uint32_t); +#endif -- cgit v1.1