From 6541f7b68f229aacd2e453bc9e94335fc56419fe Mon Sep 17 00:00:00 2001 From: Jan Glauber Date: Tue, 22 Sep 2009 22:58:40 +0200 Subject: [S390] qdio: change state of all primed input buffers 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 Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/qdio_main.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 21766c791ad..4be6e84b959 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -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) -- cgit v1.2.3-18-g5258