1 files changed, 204 insertions, 0 deletions
diff --git a/roms/u-boot/fs/btrfs/volumes.h b/roms/u-boot/fs/btrfs/volumes.h
new file mode 100644
index 000000000..9d1a07ae7
--- /dev/null
+++ b/roms/u-boot/fs/btrfs/volumes.h
@@ -0,0 +1,204 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#ifndef __BTRFS_VOLUMES_H__
+#define __BTRFS_VOLUMES_H__
+
+#include <fs_internal.h>
+#include "ctree.h"
+
+#define BTRFS_STRIPE_LEN	SZ_64K
+
+struct btrfs_device {
+	struct list_head dev_list;
+	struct btrfs_root *dev_root;
+	struct btrfs_fs_devices *fs_devices;
+
+	struct blk_desc *desc;
+	struct disk_partition *part;
+
+	u64 total_devs;
+	u64 super_bytes_used;
+
+	u64 generation;
+
+	/* the internal btrfs device id */
+	u64 devid;
+
+	/* size of the device */
+	u64 total_bytes;
+
+	/* bytes used */
+	u64 bytes_used;
+
+	/* optimal io alignment for this device */
+	u32 io_align;
+
+	/* optimal io width for this device */
+	u32 io_width;
+
+	/* minimal io size for this device */
+	u32 sector_size;
+
+	/* type and info about this device */
+	u64 type;
+
+	/* physical drive uuid (or lvm uuid) */
+	u8 uuid[BTRFS_UUID_SIZE];
+};
+
+struct btrfs_fs_devices {
+	u8 fsid[BTRFS_FSID_SIZE]; /* FS specific uuid */
+	u8 metadata_uuid[BTRFS_FSID_SIZE]; /* FS specific uuid */
+
+	u64 latest_devid;
+	u64 lowest_devid;
+	u64 latest_trans;
+
+	u64 total_rw_bytes;
+
+	struct list_head devices;
+	struct list_head list;
+
+	int seeding;
+	struct btrfs_fs_devices *seed;
+};
+
+struct btrfs_bio_stripe {
+	struct btrfs_device *dev;
+	u64 physical;
+};
+
+struct btrfs_multi_bio {
+	int error;
+	int num_stripes;
+	struct btrfs_bio_stripe stripes[];
+};
+
+struct map_lookup {
+	struct cache_extent ce;
+	u64 type;
+	int io_align;
+	int io_width;
+	int stripe_len;
+	int sector_size;
+	int num_stripes;
+	int sub_stripes;
+	struct btrfs_bio_stripe stripes[];
+};
+
+struct btrfs_raid_attr {
+	int sub_stripes;	/* sub_stripes info for map */
+	int dev_stripes;	/* stripes per dev */
+	int devs_max;		/* max devs to use */
+	int devs_min;		/* min devs needed */
+	int tolerated_failures; /* max tolerated fail devs */
+	int devs_increment;	/* ndevs has to be a multiple of this */
+	int ncopies;		/* how many copies to data has */
+	int nparity;		/* number of stripes worth of bytes to store
+				 * parity information */
+	const char raid_name[8]; /* name of the raid */
+	u64 bg_flag;		/* block group flag of the raid */
+};
+
+extern const struct btrfs_raid_attr btrfs_raid_array[BTRFS_NR_RAID_TYPES];
+
+static inline enum btrfs_raid_types btrfs_bg_flags_to_raid_index(u64 flags)
+{
+	if (flags & BTRFS_BLOCK_GROUP_RAID10)
+		return BTRFS_RAID_RAID10;
+	else if (flags & BTRFS_BLOCK_GROUP_RAID1)
+		return BTRFS_RAID_RAID1;
+	else if (flags & BTRFS_BLOCK_GROUP_RAID1C3)
+		return BTRFS_RAID_RAID1C3;
+	else if (flags & BTRFS_BLOCK_GROUP_RAID1C4)
+		return BTRFS_RAID_RAID1C4;
+	else if (flags & BTRFS_BLOCK_GROUP_DUP)
+		return BTRFS_RAID_DUP;
+	else if (flags & BTRFS_BLOCK_GROUP_RAID0)
+		return BTRFS_RAID_RAID0;
+	else if (flags & BTRFS_BLOCK_GROUP_RAID5)
+		return BTRFS_RAID_RAID5;
+	else if (flags & BTRFS_BLOCK_GROUP_RAID6)
+		return BTRFS_RAID_RAID6;
+
+	return BTRFS_RAID_SINGLE; /* BTRFS_BLOCK_GROUP_SINGLE */
+}
+
+#define btrfs_multi_bio_size(n) (sizeof(struct btrfs_multi_bio) + \
+			    (sizeof(struct btrfs_bio_stripe) * (n)))
+#define btrfs_map_lookup_size(n) (sizeof(struct map_lookup) + \
+				 (sizeof(struct btrfs_bio_stripe) * (n)))
+
+#define BTRFS_RAID5_P_STRIPE ((u64)-2)
+#define BTRFS_RAID6_Q_STRIPE ((u64)-1)
+
+static inline u64 calc_stripe_length(u64 type, u64 length, int num_stripes)
+{
+	u64 stripe_size;
+
+	if (type & BTRFS_BLOCK_GROUP_RAID0) {
+		stripe_size = length;
+		stripe_size /= num_stripes;
+	} else if (type & BTRFS_BLOCK_GROUP_RAID10) {
+		stripe_size = length * 2;
+		stripe_size /= num_stripes;
+	} else if (type & BTRFS_BLOCK_GROUP_RAID5) {
+		stripe_size = length;
+		stripe_size /= (num_stripes - 1);
+	} else if (type & BTRFS_BLOCK_GROUP_RAID6) {
+		stripe_size = length;
+		stripe_size /= (num_stripes - 2);
+	} else {
+		stripe_size = length;
+	}
+	return stripe_size;
+}
+
+#ifndef READ
+#define READ 0
+#define WRITE 1
+#define READA 2
+#endif
+
+int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
+		      u64 logical, u64 *length, u64 *type,
+		      struct btrfs_multi_bio **multi_ret, int mirror_num,
+		      u64 **raid_map);
+int btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
+		    u64 logical, u64 *length,
+		    struct btrfs_multi_bio **multi_ret, int mirror_num,
+		    u64 **raid_map_ret);
+int btrfs_next_bg(struct btrfs_fs_info *map_tree, u64 *logical,
+		     u64 *size, u64 type);
+static inline int btrfs_next_bg_metadata(struct btrfs_fs_info *fs_info,
+					 u64 *logical, u64 *size)
+{
+	return btrfs_next_bg(fs_info, logical, size,
+			BTRFS_BLOCK_GROUP_METADATA);
+}
+static inline int btrfs_next_bg_system(struct btrfs_fs_info *fs_info,
+				       u64 *logical, u64 *size)
+{
+	return btrfs_next_bg(fs_info, logical, size,
+			BTRFS_BLOCK_GROUP_SYSTEM);
+}
+int btrfs_read_sys_array(struct btrfs_fs_info *fs_info);
+int btrfs_read_chunk_tree(struct btrfs_fs_info *fs_info);
+int btrfs_open_devices(struct btrfs_fs_devices *fs_devices);
+int btrfs_close_devices(struct btrfs_fs_devices *fs_devices);
+void btrfs_close_all_devices(void);
+int btrfs_num_copies(struct btrfs_fs_info *fs_info, u64 logical, u64 len);
+int btrfs_scan_one_device(struct blk_desc *desc, struct disk_partition *part,
+			  struct btrfs_fs_devices **fs_devices_ret,
+			  u64 *total_devs);
+struct list_head *btrfs_scanned_uuids(void);
+struct btrfs_device *btrfs_find_device(struct btrfs_fs_info *fs_info, u64 devid,
+				       u8 *uuid, u8 *fsid);
+int btrfs_check_chunk_valid(struct btrfs_fs_info *fs_info,
+			    struct extent_buffer *leaf,
+			    struct btrfs_chunk *chunk,
+			    int slot, u64 logical);
+u64 btrfs_stripe_length(struct btrfs_fs_info *fs_info,
+			struct extent_buffer *leaf,
+			struct btrfs_chunk *chunk);
+#endif