net/octeontx2: fix PTP performance

[dpdk.git] / drivers / net / octeontx2 / otx2_rx.h

diff --git a/drivers/net/octeontx2/otx2_rx.h b/drivers/net/octeontx2/otx2_rx.h
index e150f38..d12e8b8 100644 (file)
--- a/drivers/net/octeontx2/otx2_rx.h
+++ b/drivers/net/octeontx2/otx2_rx.h
@@ -50,22 +50,26 @@ union mbuf_initializer {
 
 static __rte_always_inline void
 otx2_nix_mbuf_to_tstamp(struct rte_mbuf *mbuf,
-                       struct otx2_timesync_info *tstamp, const uint16_t flag)
+                       struct otx2_timesync_info *tstamp, const uint16_t flag,
+                       uint64_t *tstamp_ptr)
 {
        if ((flag & NIX_RX_OFFLOAD_TSTAMP_F) &&
-           mbuf->packet_type == RTE_PTYPE_L2_ETHER_TIMESYNC &&
            (mbuf->data_off == RTE_PKTMBUF_HEADROOM +
             NIX_TIMESYNC_RX_OFFSET)) {
-               uint64_t *tstamp_ptr;
 
-               /* Deal with rx timestamp */
-               tstamp_ptr = rte_pktmbuf_mtod_offset(mbuf, uint64_t *,
-                                                    -NIX_TIMESYNC_RX_OFFSET);
+               /* Reading the rx timestamp inserted by CGX, viz at
+                * starting of the packet data.
+                */
                mbuf->timestamp = rte_be_to_cpu_64(*tstamp_ptr);
-               tstamp->rx_tstamp = mbuf->timestamp;
-               tstamp->rx_ready = 1;
-               mbuf->ol_flags |= PKT_RX_IEEE1588_PTP | PKT_RX_IEEE1588_TMST
-                       | PKT_RX_TIMESTAMP;
+               /* PKT_RX_IEEE1588_TMST flag needs to be set only in case
+                * PTP packets are received.
+                */
+               if (mbuf->packet_type == RTE_PTYPE_L2_ETHER_TIMESYNC) {
+                       tstamp->rx_tstamp = mbuf->timestamp;
+                       tstamp->rx_ready = 1;
+                       mbuf->ol_flags |= PKT_RX_IEEE1588_PTP |
+                               PKT_RX_IEEE1588_TMST | PKT_RX_TIMESTAMP;
+               }
        }
 }