Changeset d7768d11 in mainline for uspace/srv/bd/hr/superblock.c

Timestamp:

2024-12-06T19:46:43Z (10 months ago)

Author:

Miroslav Cimerman <mc@…>

Children:

241c3f6

Parents:

586b39d

Message:

hr: add different RAID4,5 layouts

Also prepare the metadata for metada versioning
and sync counter.

File:

• uspace/srv/bd/hr/superblock.c (modified) (2 diffs)

uspace/srv/bd/hr/superblock.c

@@ -153 +153 @@
 
         metadata->magic = host2uint64_t_le(HR_MAGIC);
+        metadata->version = host2uint32_t_le(~(0U)); /* unused */
         metadata->extent_no = host2uint32_t_le(vol->extent_no);
+        /* index filled separately for each extent */
         metadata->level = host2uint32_t_le(vol->level);
+        metadata->layout = host2uint32_t_le(vol->RLQ);
+        metadata->strip_size = host2uint32_t_le(vol->strip_size);
         metadata->nblocks = host2uint64_t_le(vol->nblocks);
         metadata->data_blkno = host2uint64_t_le(vol->data_blkno);
-        metadata->data_offset = host2uint32_t_le(vol->data_offset);
-        metadata->strip_size = host2uint32_t_le(vol->strip_size);
-
+        metadata->data_offset = host2uint64_t_le(vol->data_offset);
+        metadata->counter = host2uint64_t_le(~(0UL)); /* unused */
+        /* UUID generated separately for each extent */
         str_cpy(metadata->devname, HR_DEVNAME_LEN, vol->devname);
 
@@ -231 +235 @@
         }
 
+        /* TODO: handle version */
         vol->level = uint32_t_le2host(metadata->level);
+        vol->RLQ = (uint8_t)uint32_t_le2host(metadata->layout);
+        vol->strip_size = uint32_t_le2host(metadata->strip_size);
         vol->nblocks = uint64_t_le2host(metadata->nblocks);
         vol->data_blkno = uint64_t_le2host(metadata->data_blkno);
-        vol->data_offset = uint32_t_le2host(metadata->data_offset);
-        vol->strip_size = uint32_t_le2host(metadata->strip_size);
+        vol->data_offset = uint64_t_le2host(metadata->data_offset);
+        vol->counter = uint64_t_le2host(0x00); /* unused */
 
         if (str_cmp(metadata->devname, vol->devname) != 0) {