[hermon] Adjust Ethernet work queue size

Hermon Ethernet work queues have more RX than TX entries, unlike most
other drivers.  This is possibly the source of some stochastic
deadlocks previously experienced with this driver.

Update the sizes to be in line with other drivers, and make them
slightly larger for better performance.  These new queue sizes have
been found to work well with ConnectX-3 hardware.

Signed-off-by: Christian Iversen <ci@iversenit.dk>
Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/drivers/infiniband/hermon.c b/src/drivers/infiniband/hermon.c
index 45dfd1a941e3f32f49226be9ae9d733c24430305..061ee81c7efbc9d7986d13db4704a9849fc3c5b7 100644 (file)
--- a/src/drivers/infiniband/hermon.c
+++ b/src/drivers/infiniband/hermon.c
@@ -3274,13 +3274,13 @@ static struct hermon_port_type hermon_port_type_ib = {
  */
 
 /** Number of Hermon Ethernet send work queue entries */
-#define HERMON_ETH_NUM_SEND_WQES 2
+#define HERMON_ETH_NUM_SEND_WQES 16
 
 /** Number of Hermon Ethernet receive work queue entries */
-#define HERMON_ETH_NUM_RECV_WQES 4
+#define HERMON_ETH_NUM_RECV_WQES 8
 
 /** Number of Hermon Ethernet completion entries */
-#define HERMON_ETH_NUM_CQES 8
+#define HERMON_ETH_NUM_CQES 32
 
 /**
  * Transmit packet via Hermon Ethernet device