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 <lundman@lundman.net>
diff --git a/include/zfs/dsl_dataset.h b/include/zfs/dsl_dataset.h
new file mode 100644
index 0000000..ab0ee22
--- /dev/null
+++ b/include/zfs/dsl_dataset.h
@@ -0,0 +1,53 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
+ *
+ * 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.
+ *
+ * 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.
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_DSL_DATASET_H
+#define _SYS_DSL_DATASET_H
+
+typedef struct dsl_dataset_phys {
+ uint64_t ds_dir_obj;
+ uint64_t ds_prev_snap_obj;
+ uint64_t ds_prev_snap_txg;
+ uint64_t ds_next_snap_obj;
+ uint64_t ds_snapnames_zapobj; /* zap obj of snaps; ==0 for snaps */
+ uint64_t ds_num_children; /* clone/snap children; ==0 for head */
+ uint64_t ds_creation_time; /* seconds since 1970 */
+ uint64_t ds_creation_txg;
+ uint64_t ds_deadlist_obj;
+ uint64_t ds_used_bytes;
+ uint64_t ds_compressed_bytes;
+ uint64_t ds_uncompressed_bytes;
+ uint64_t ds_unique_bytes; /* only relevant to snapshots */
+ /*
+ * The ds_fsid_guid is a 56-bit ID that can change to avoid
+ * collisions. The ds_guid is a 64-bit ID that will never
+ * change, so there is a small probability that it will collide.
+ */
+ uint64_t ds_fsid_guid;
+ uint64_t ds_guid;
+ uint64_t ds_flags;
+ blkptr_t ds_bp;
+ uint64_t ds_pad[8]; /* pad out to 320 bytes for good measure */
+} dsl_dataset_phys_t;
+
+#endif /* _SYS_DSL_DATASET_H */
