diff options
author | Maciej Naruszewicz <maciej.naruszewicz@intel.com> | 2012-10-04 16:34:11 +1000 |
---|---|---|
committer | NeilBrown <neilb@suse.de> | 2012-10-04 16:34:11 +1000 |
commit | 9eafa1de73d1bd0b2ac0275d1389824825647df7 (patch) | |
tree | 6a6b2d3b380d6f5d83c6e74052fdc3525da427c9 /util.c | |
parent | 12c7b44ebef3971ffff84c4c80dc077ddbe79f60 (diff) |
imsm: Allow to specify controller for --detail-platform.
Usually, 'mdadm --detail-platform -e imsm' scans all the controllers
looking for IMSM capabilities. This patch provides the possibility
to specify a controller to scan, enabling custom usage by other
processes - especially with the --export switch.
$ mdadm --detail-platform
Platform : Intel(R) Matrix Storage Manager
Version : 9.5.0.1037
RAID Levels : raid0 raid1 raid10 raid5
Chunk Sizes : 4k 8k 16k 32k 64k 128k
2TB volumes : supported
2TB disks : not supported
Max Disks : 7
Max Volumes : 2 per array, 4 per controller
I/O Controller : /sys/devices/pci0000:00/0000:00:1f.2 (SATA)
$ mdadm --detail-platform /sys/devices/pci0000:00/0000:00:1f.2
Platform : Intel(R) Matrix Storage Manager
Version : 9.5.0.1037
RAID Levels : raid0 raid1 raid10 raid5
Chunk Sizes : 4k 8k 16k 32k 64k 128k
2TB volumes : supported
2TB disks : not supported
Max Disks : 7
Max Volumes : 2 per array, 4 per controller
I/O Controller : /sys/devices/pci0000:00/0000:00:1f.2 (SATA)
$ mdadm --detail-platform /sys/devices/pci0000:00/0000:00:1f.2 --export
MD_FIRMWARE_TYPE=imsm
IMSM_VERSION=9.5.0.1037
IMSM_SUPPORTED_RAID_LEVELS=raid0 raid1 raid10 raid5
IMSM_SUPPORTED_CHUNK_SIZES=4k 8k 16k 32k 64k 128k
IMSM_2TB_VOLUMES=yes
IMSM_2TB_DISKS=no
IMSM_MAX_DISKS=7
IMSM_MAX_VOLUMES_PER_ARRAY=2
IMSM_MAX_VOLUMES_PER_CONTROLLER=4
$ mdadm --detail-platform /sys/devices/pci0000:00/0000:00:1f.0 # This isn't an IMSM-capable controller
mdadm: no active Intel(R) RAID controller found under /sys/devices/pci0000:00/0000:00:1f.0
Signed-off-by: Maciej Naruszewicz <maciej.naruszewicz@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'util.c')
-rw-r--r-- | util.c | 21 |
1 files changed, 21 insertions, 0 deletions
@@ -1834,3 +1834,24 @@ struct mdinfo *container_choose_spares(struct supertype *st, } return disks; } + +/* Checks if paths point to the same device + * Returns 0 if they do. + * Returns 1 if they don't. + * Returns -1 if something went wrong, + * e.g. paths are empty or the files + * they point to don't exist */ +int compare_paths (char* path1, char* path2) +{ + struct stat st1,st2; + + if (path1 == NULL || path2 == NULL) + return -1; + if (stat(path1,&st1) != 0) + return -1; + if (stat(path2,&st2) != 0) + return -1; + if ((st1.st_ino == st2.st_ino) && (st1.st_dev == st2.st_dev)) + return 0; + return 1; +} |