]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 652f00d) | 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)
commite224ec7181425c87e3e8a0e1e303fd81c9ed49bd
treed62c80319e3b63fc352afda230e618d792b9a5fbtree | snapshot
parent652f00dd83b95dd56f05416a34d6ff2c75764725commit | 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
Linux Kernel Source Tree.