[PATCH] net/nfp: add quick exit logic for parse packet type

[Chaoyong He]

Add quick exit logic for parse packet type function, when the control
switch for this feature is off, the function can return quickly.

Signed-off-by: Chaoyong He <chaoyong...@corigine.com>
Reviewed-by: Long Wu <long...@corigine.com>
Reviewed-by: Peng Zhang <peng.zh...@corigine.com>
---
 drivers/net/nfp/nfp_rxtx.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/net/nfp/nfp_rxtx.c b/drivers/net/nfp/nfp_rxtx.c
index b2a9ba6875..f21e120a43 100644
--- a/drivers/net/nfp/nfp_rxtx.c
+++ b/drivers/net/nfp/nfp_rxtx.c
@@ -584,18 +584,25 @@ nfp_net_set_ptype(const struct nfp_ptype_parsed 
*nfp_ptype,
 /**
  * Parse the packet type from Rx descriptor and set to mbuf.
  *
+ * @param rxq
+ *   Rx queue
  * @param rxds
  *   Rx descriptor including the offloading info of packet type.
  * @param mb
  *   Mbuf to set the packet type.
  */
 static void
-nfp_net_parse_ptype(struct nfp_net_rx_desc *rxds,
+nfp_net_parse_ptype(struct nfp_net_rxq *rxq,
+               struct nfp_net_rx_desc *rxds,
                struct rte_mbuf *mb)
 {
+       struct nfp_net_hw *hw = rxq->hw;
        struct nfp_ptype_parsed nfp_ptype;
        uint16_t rxd_ptype = rxds->rxd.offload_info;
 
+       if ((hw->super.cap_ext & NFP_NET_CFG_CTRL_PKT_TYPE) == 0)
+               return;
+
        if (rxd_ptype == 0 || (rxds->rxd.flags & PCIE_DESC_RX_VLAN) != 0)
                return;
 
@@ -735,7 +742,7 @@ nfp_net_recv_pkts(void *rx_queue,
                struct nfp_meta_parsed meta = {};
                nfp_net_parse_meta(rxds, rxq, hw, mb, &meta);
 
-               nfp_net_parse_ptype(rxds, mb);
+               nfp_net_parse_ptype(rxq, rxds, mb);
 
                /* Checking the checksum flag */
                nfp_net_rx_cksum(rxq, rxds, mb);
-- 
2.39.1