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| author |  Stefan Weinhuber <wein@de.ibm.com>
| 2010-10-29 16:50:43 +0200 |
|---|---|---|
| committer |  Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
| 2010-10-29 16:50:50 +0200 |
| commit | 196339f1733726ffd69ab81ec1c66678585f5846 (patch) | |
| tree | 2974211770a2d0ead128f80fef972748673e7e3c /drivers/s390/block/dasd_eckd.h | |
| parent | [S390] ftrace: select HAVE_C_RECORDMCOUNT (diff) | |
| download | linux-196339f1733726ffd69ab81ec1c66678585f5846.tar.gz linux-196339f1733726ffd69ab81ec1c66678585f5846.tar.bz2 linux-196339f1733726ffd69ab81ec1c66678585f5846.zip | |
[S390] dasd: provide a Sense Path Group ID ioctl
The BIODASDSNID ioctl executes a 'Sense Path Group ID'
command on a DASD ECKD device. The returned path group data
allows user space programs to determine path state and
path group ID of the channel paths to the device.
Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/block/dasd_eckd.h')
| -rw-r--r-- | drivers/s390/block/dasd_eckd.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index 0eb49655a6cd..12097c24f2f5 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -27,6 +27,7 @@ #define DASD_ECKD_CCW_WRITE_CKD 0x1d #define DASD_ECKD_CCW_READ_CKD 0x1e #define DASD_ECKD_CCW_PSF 0x27 +#define DASD_ECKD_CCW_SNID 0x34 #define DASD_ECKD_CCW_RSSD 0x3e #define DASD_ECKD_CCW_LOCATE_RECORD 0x47 #define DASD_ECKD_CCW_SNSS 0x54 |