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authorKlaus D. Wacker <kdwacker@de.ibm.com>2007-08-22 13:51:39 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2007-08-22 13:51:47 +0200
commit37cd0a007f88f1d6269035bdb02b50f536cca8de (patch)
tree9de8eed42b8405ae3a7ab378d7fde8bd0e1f0be2 /drivers
parentf276730f8da0e8136d8491b6ef44fc719d450a1b (diff)
downloadop-kernel-dev-37cd0a007f88f1d6269035bdb02b50f536cca8de.zip
op-kernel-dev-37cd0a007f88f1d6269035bdb02b50f536cca8de.tar.gz
[S390] qdio: Refresh buffer states for IQDIO Asynchronous output queue
Hipersocket Multicast queue works asynchronously. When sending buffers, the buffer state change may happen delayed. The tasklet for checking changes in the outbound queue excluded IQDIO async queues from this process. This created either a hang situation when the queue ran full, or presented a hang situation a interface close time. The tasklet processing is changed to include IQDIO async queues when requesting buffer state refresh. Signed-off-by: Klaus D. Wacker <kdwacker@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/s390/cio/qdio.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c
index badfb5b..d8d4798 100644
--- a/drivers/s390/cio/qdio.c
+++ b/drivers/s390/cio/qdio.c
@@ -742,7 +742,8 @@ qdio_get_outbound_buffer_frontier(struct qdio_q *q)
first_not_to_check=f+qdio_min(atomic_read(&q->number_of_buffers_used),
(QDIO_MAX_BUFFERS_PER_Q-1));
- if ((!q->is_iqdio_q)&&(!q->hydra_gives_outbound_pcis))
+ if (((!q->is_iqdio_q) && (!q->hydra_gives_outbound_pcis)) ||
+ (q->queue_type == QDIO_IQDIO_QFMT_ASYNCH))
SYNC_MEMORY;
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