cciss: Add a "raid_level" attribute to each logical drive in /sys

and change get rid of some magic numbers in raid lavel decoding.

Add raid_level attribute to each logical drive at
/sys/devices/<dev>/ccissX/cXdY/raid_level for controller X,
logical drive Y

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss b/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss
index 5a6c8d36afc4..8d0260256168 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss
+++ b/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss
@@ -45,3 +45,10 @@ Kernel Version: 2.6.31
 Contact:        iss_storagedev@hp.com
 Description:    Displays the 8-byte LUN ID used to address logical
                 drive Y of controller X.
+
+Where:          /sys/bus/pci/devices/<dev>/ccissX/cXdY/raid_level
+Date:           August 2009
+Kernel Version: 2.6.31
+Contact:        iss_storagedev@hp.com
+Description:    Displays the RAID level of logical drive Y of
+                controller X.