diff options
| author | Jan Glauber <jang@linux.vnet.ibm.com> | 2011-01-05 12:47:51 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2011-01-05 12:47:28 +0100 |
| commit | 0195843bfda90a215f3b72c9aac2fd0bc9244b67 (patch) | |
| tree | c5767e7797814d0e76ea6d064d2c6fac088b25e8 /drivers/s390/cio | |
| parent | [S390] qdio: outbound tasklet scan threshold (diff) | |
| download | linux-0195843bfda90a215f3b72c9aac2fd0bc9244b67.tar.xz linux-0195843bfda90a215f3b72c9aac2fd0bc9244b67.zip | |
[S390] qdio: outbound queue full counter
Add a counter for outbound queue full events to the qdio statistics.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio')
| -rw-r--r-- | drivers/s390/cio/qdio.h | 1 | ||||
| -rw-r--r-- | drivers/s390/cio/qdio_debug.c | 1 | ||||
| -rw-r--r-- | drivers/s390/cio/qdio_main.c | 3 |
3 files changed, 5 insertions, 0 deletions
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index a77aa9109cfd..40ca0b9241e5 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -202,6 +202,7 @@ struct qdio_dev_perf_stat { unsigned int inbound_queue_full; unsigned int outbound_call; unsigned int outbound_handler; + unsigned int outbound_queue_full; unsigned int fast_requeue; unsigned int target_full; unsigned int eqbs; diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c index 28868e7471a5..f8b03a636e49 100644 --- a/drivers/s390/cio/qdio_debug.c +++ b/drivers/s390/cio/qdio_debug.c @@ -151,6 +151,7 @@ static char *qperf_names[] = { "Inbound queue full", "Outbound calls", "Outbound handler", + "Outbound queue full", "Outbound fast_requeue", "Outbound target_full", "QEBSM eqbs", diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 4c0109900c74..af86875bede4 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -1447,6 +1447,9 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags, used = atomic_add_return(count, &q->nr_buf_used); BUG_ON(used > QDIO_MAX_BUFFERS_PER_Q); + if (used == QDIO_MAX_BUFFERS_PER_Q) + qperf_inc(q, outbound_queue_full); + if (callflags & QDIO_FLAG_PCI_OUT) { q->u.out.pci_out_enabled = 1; qperf_inc(q, pci_request_int); |