projects / platform / kernel / linux-3.10.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: e4c031b) | patch
[S390] qdio: reset error states immediately
authorJan Glauber <jang@linux.vnet.ibm.com>
Wed, 20 Apr 2011 08:15:33 +0000 (10:15 +0200)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Wed, 20 Apr 2011 08:15:43 +0000 (10:15 +0200)
commitbffbbd2df4196a73ffdc16709866dd96eb66aad8
treed62c80319e3b63fc352afda230e618d792b9a5fbtree | snapshot
parente4c031b4f2515e9531d71c8aa779799231dbcd0ccommit | diff
[S390] qdio: reset error states immediately

The qdio hardware may surpress further interrupts as long as a SBAL is in
the error state. That can lead to unnotified data in the SBALs following
the error state. To prevent this behaviour change the SBAL[s] in error
state immediately to another program owned state so interrupts are again
received for further traffic on the device.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/cio/qdio_main.c diff | blob | history
Domain: System / Kernel;