mlx5: process offload flags only when requested

Improve performance by processing offloads only when requested by the
application.

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>

diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index 63ddc53..c84ec8c 100644 (file)
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -853,14 +853,16 @@ mlx5_rx_burst_sp(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
                NB_SEGS(pkt_buf) = j;
                PORT(pkt_buf) = rxq->port_id;
                PKT_LEN(pkt_buf) = pkt_buf_len;
-               pkt_buf->packet_type = rxq_cq_to_pkt_type(flags);
-               pkt_buf->ol_flags = rxq_cq_to_ol_flags(rxq, flags);
+               if (rxq->csum | rxq->csum_l2tun | rxq->vlan_strip) {
+                       pkt_buf->packet_type = rxq_cq_to_pkt_type(flags);
+                       pkt_buf->ol_flags = rxq_cq_to_ol_flags(rxq, flags);
 #ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
-               if (flags & IBV_EXP_CQ_RX_CVLAN_STRIPPED_V1) {
-                       pkt_buf->ol_flags |= PKT_RX_VLAN_PKT;
-                       pkt_buf->vlan_tci = vlan_tci;
-               }
+                       if (flags & IBV_EXP_CQ_RX_CVLAN_STRIPPED_V1) {
+                               pkt_buf->ol_flags |= PKT_RX_VLAN_PKT;
+                               pkt_buf->vlan_tci = vlan_tci;
+                       }
 #endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
+               }
 
                /* Return packet. */
                *(pkts++) = pkt_buf;
@@ -1006,15 +1008,16 @@ mlx5_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
                NEXT(seg) = NULL;
                PKT_LEN(seg) = len;
                DATA_LEN(seg) = len;
-               seg->packet_type = rxq_cq_to_pkt_type(flags);
-               seg->ol_flags = rxq_cq_to_ol_flags(rxq, flags);
+               if (rxq->csum | rxq->csum_l2tun | rxq->vlan_strip) {
+                       seg->packet_type = rxq_cq_to_pkt_type(flags);
+                       seg->ol_flags = rxq_cq_to_ol_flags(rxq, flags);
 #ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
-               if (flags & IBV_EXP_CQ_RX_CVLAN_STRIPPED_V1) {
-                       seg->ol_flags |= PKT_RX_VLAN_PKT;
-                       seg->vlan_tci = vlan_tci;
-               }
+                       if (flags & IBV_EXP_CQ_RX_CVLAN_STRIPPED_V1) {
+                               seg->ol_flags |= PKT_RX_VLAN_PKT;
+                               seg->vlan_tci = vlan_tci;
+                       }
 #endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
-
+               }
                /* Return packet. */
                *(pkts++) = seg;
                ++pkts_ret;