From: Rasesh Mody <rasesh.mody@qlogic.com>
Date: Fri, 11 Dec 2015 18:31:54 +0000 (-0800)
Subject: bnx2x: skip Rx producer refresh when no packet
X-Git-Tag: spdx-start~7779
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=c6eedc5220487b3704ac7b733b4926a4779bd254;p=dpdk.git

bnx2x: skip Rx producer refresh when no packet

Signed-off-by: Rasesh Mody <rasesh.mody@qlogic.com>
---

diff --git a/drivers/net/bnx2x/bnx2x_rxtx.c b/drivers/net/bnx2x/bnx2x_rxtx.c
index 09e3ebff79..e8998c0763 100644
--- a/drivers/net/bnx2x/bnx2x_rxtx.c
+++ b/drivers/net/bnx2x/bnx2x_rxtx.c
@@ -374,6 +374,9 @@ bnx2x_recv_pkts(void *p_rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 	sw_cq_cons = rxq->rx_cq_head;
 	sw_cq_prod = rxq->rx_cq_tail;
 
+	if (sw_cq_cons == hw_cq_cons)
+		return 0;
+
 	while (nb_rx < nb_pkts && sw_cq_cons != hw_cq_cons) {
 
 		bd_prod &= MAX_RX_BD(rxq);