[S390] dasd: provide a Sense Path Group ID ioctl
authorStefan Weinhuber <wein@de.ibm.com>
Fri, 29 Oct 2010 14:50:43 +0000 (16:50 +0200)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Fri, 29 Oct 2010 14:50:50 +0000 (16:50 +0200)
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>

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