[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>
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index a77aa91..40ca0b9 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -202,6 +202,7 @@
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 28868e7..f8b03a6 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -151,6 +151,7 @@
"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 4c01099..af86875 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -1447,6 +1447,9 @@
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);