mbuf: add a timestamp field

[dpdk.git] / lib / librte_mbuf / rte_mbuf.h

diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 349f051..9dd8e80 100644 (file)
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -184,6 +184,11 @@ extern "C" {
  */
 #define PKT_RX_LRO           (1ULL << 16)
 
+/**
+ * Indicate that the timestamp field in the mbuf is valid.
+ */
+#define PKT_RX_TIMESTAMP     (1ULL << 17)
+
 /* add new RX flags here */
 
 /* add new TX flags here */
@@ -481,6 +486,12 @@ struct rte_mbuf {
        uint16_t vlan_tci_outer;
 
        uint16_t buf_len;         /**< Length of segment buffer. */
+
+       /** Valid if PKT_RX_TIMESTAMP is set. The unit and time reference
+        * are not normalized but are always the same for a given port.
+        */
+       uint64_t timestamp;
+
        /* second cache line - fields only used in slow path or on TX */
        MARKER cacheline1 __rte_cache_min_aligned;
 
@@ -1208,6 +1219,7 @@ static inline void rte_pktmbuf_attach(struct rte_mbuf *mi, struct rte_mbuf *m)
        mi->nb_segs = 1;
        mi->ol_flags = m->ol_flags | IND_ATTACHED_MBUF;
        mi->packet_type = m->packet_type;
+       mi->timestamp = m->timestamp;
 
        __rte_mbuf_sanity_check(mi, 1);
        __rte_mbuf_sanity_check(m, 0);