summaryrefslogtreecommitdiffstats
path: root/drivers/s390/cio/qdio.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s390/cio/qdio.h')
-rw-r--r--drivers/s390/cio/qdio.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index c1a70985abfa..e3ea1d5f2810 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -16,6 +16,14 @@
#define QDIO_BUSY_BIT_GIVE_UP 2000000 /* 2 seconds = eternity */
#define QDIO_INPUT_THRESHOLD 500 /* 500 microseconds */
+/*
+ * if an asynchronous HiperSockets queue runs full, the 10 seconds timer wait
+ * till next initiative to give transmitted skbs back to the stack is too long.
+ * Therefore polling is started in case of multicast queue is filled more
+ * than 50 percent.
+ */
+#define QDIO_IQDIO_POLL_LVL 65 /* HS multicast queue */
+
enum qdio_irq_states {
QDIO_IRQ_STATE_INACTIVE,
QDIO_IRQ_STATE_ESTABLISHED,
@@ -195,6 +203,9 @@ struct qdio_output_q {
/* PCIs are enabled for the queue */
int pci_out_enabled;
+ /* IQDIO: output multiple buffers (enhanced SIGA) */
+ int use_enh_siga;
+
/* timer to check for more outbound work */
struct timer_list timer;
};