[S390] cio: improve error recovery for internal I/Os
Improve error recovery for internal I/Os by repeating each I/O
256 times per path to cope with long-running non-permanent error
conditions. Also retry each path twice to cope with link flapping,
i.e. single paths becoming unavailable in the order in which they
are tried.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h
index dbc69a5..d72ae4c 100644
--- a/drivers/s390/cio/io_sch.h
+++ b/drivers/s390/cio/io_sch.h
@@ -109,7 +109,7 @@
void (*callback)(struct ccw_device *, void *, int);
void *data;
/* These fields are used internally. */
- u8 mask;
+ u16 mask;
u16 retries;
int drc;
int cancel:1;