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[S390] qdio: change state of all primed input buffers

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If input buffers stay in primed state qdio may not receive further interrupts
for the input queue depending on the firmware. That can cause a connection
hang on OSA cards.

Change the state of all primed input buffers that are not acknowledged to
not initialized.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Jan Glauber 2009-09-22 22:58:40 +02:00 committed by Martin Schwidefsky
parent 1d7e1500a6
commit 6541f7b68f
1 changed files with 2 additions and 0 deletions
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2
drivers/s390/cio/qdio_main.c
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@ -455,6 +455,8 @@ static inline void inbound_primed(struct qdio_q *q, int count)
count--;
if (!count)
return;
/* need to change ALL buffers to get more interrupts */
set_buf_states(q, q->first_to_check, SLSB_P_INPUT_NOT_INIT, count);
}
static int get_inbound_buffer_frontier(struct qdio_q *q)