tree 4861db1aeca00d55d76b5844ad209d81a2795105
parent 7e9db9eaefdb8798730790214ff1b7746006ec98
author Cornelia Huck <cornelia.huck@de.ibm.com> 1216022325 +0200
committer Heiko Carstens <heiko.carstens@de.ibm.com> 1216022525 +0200

[S390] cio: Rework css driver.

Rework the css driver methods to provide sane callbacks for
subchannels of all types.

As a bonus, this cleans up and simplyfies the machine check
handling for I/O subchannels a lot.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>