Julian Wiedmann c70d82e966 s390/qdio: add IRQ reduction for error SBALs
SBALs in PRIMED or ERROR state represent new work on the Input Queue.
But while inbound_primed() does all sorts of ACK management for new
PRIMED work, the same handling is currently missing for ERROR work.
In particular the path for ERROR work doesn't clear up _old_ ACKs.

Treat ERROR work the same as PRIMED work, but consider that the QEBSM
auto-ACK feature doesn't apply here. So we need to set the ACK manually,
as if it was a non-QEBSM device.

Note that this doesn't aspire to actually improve performance, the main
goal is to just unify the code paths and have consistent behaviour.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-05-20 10:22:50 +02:00
..
2020-03-27 10:22:47 +01:00
2020-02-17 18:01:57 +01:00
2019-10-10 10:49:46 +02:00
2018-10-31 08:54:16 -07:00
2018-07-17 07:27:55 +02:00
2019-04-24 14:18:51 +02:00
2018-04-10 07:38:59 +02:00
2018-02-05 07:34:52 +01:00
2019-08-23 12:53:32 +02:00