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;
 };