From 028cf917b258b11286437a1b96e64030f94fd46d Mon Sep 17 00:00:00 2001 From: Ursula Braun Date: Fri, 15 Dec 2006 17:18:14 +0100 Subject: [PATCH] [S390] Hipersocket multicast queue: make sure outbound handler is called A HiperSocket multicast queue works asynchronously. When sending buffers, the buffer state change from PRIMED to EMPTY may happen delayed. Reschedule the checking for changes in the outbound queue, if there are still PRIMED buffers. Signed-off-by: Ursula Braun Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/qdio.c | 13 ++++++++----- include/asm-s390/qdio.h | 1 + 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c index 9d4ea449a608..6fd1940842eb 100644 --- a/drivers/s390/cio/qdio.c +++ b/drivers/s390/cio/qdio.c @@ -979,12 +979,11 @@ __qdio_outbound_processing(struct qdio_q *q) if (q->is_iqdio_q) { /* - * for asynchronous queues, we better check, if the fill - * level is too high. for synchronous queues, the fill - * level will never be that high. + * for asynchronous queues, we better check, if the sent + * buffer is already switched from PRIMED to EMPTY. */ - if (atomic_read(&q->number_of_buffers_used)> - IQDIO_FILL_LEVEL_TO_POLL) + if ((q->queue_type == QDIO_IQDIO_QFMT_ASYNCH) && + !qdio_is_outbound_q_done(q)) qdio_mark_q(q); } else if (!q->hydra_gives_outbound_pcis) @@ -1825,6 +1824,10 @@ qdio_fill_qs(struct qdio_irq *irq_ptr, struct ccw_device *cdev, q->sbal[j]=*(outbound_sbals_array++); q->queue_type=q_format; + if ((q->queue_type == QDIO_IQDIO_QFMT) && + (no_output_qs > 1) && + (i == no_output_qs-1)) + q->queue_type = QDIO_IQDIO_QFMT_ASYNCH; q->int_parm=int_parm; q->is_input_q=0; q->schid = irq_ptr->schid; diff --git a/include/asm-s390/qdio.h b/include/asm-s390/qdio.h index 7189c79bc673..127f72e77419 100644 --- a/include/asm-s390/qdio.h +++ b/include/asm-s390/qdio.h @@ -34,6 +34,7 @@ #define QDIO_QETH_QFMT 0 #define QDIO_ZFCP_QFMT 1 #define QDIO_IQDIO_QFMT 2 +#define QDIO_IQDIO_QFMT_ASYNCH 3 struct qdio_buffer_element{ unsigned int flags;