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[S390] Add ioctl support for EMC Symmetrix Subsystem Control I/O
authorNigel Hislop <hislop_nigel@emc.com>
Fri, 10 Oct 2008 19:33:25 +0000 (21:33 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Fri, 10 Oct 2008 19:34:00 +0000 (21:34 +0200)
commitab1d848fd6a9151b02c6cbf4bddce6e24707b094
tree6476c68b552e2df56a0ebd293d0c9777c735480btree | snapshot (tar.gz zip)
parent3ce66093f5ec5a6ae0ca90c79d81eee15e842293commit | diff
[S390] Add ioctl support for EMC Symmetrix Subsystem Control I/O

EMC Symmetrix Subsystem Control I/O through CKD dasd requires a
specific parameter list sent to the array via a Perform Subsystem
Function CCW. The Symmetrix response is retrieved from the array
via a Read Subsystem Data CCW.

Signed-off-by: Nigel Hislop <hislop_nigel@emc.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
arch/s390/include/asm/dasd.h diff | blob | blame | history
drivers/s390/block/dasd_eckd.c diff | blob | blame | history