[dpdk-dev] [PATCH v2 8/8] mbuf: add a timestamp field
Olivier Matz
olivier.matz at 6wind.com
Tue Apr 4 18:28:07 CEST 2017
The field itself is not fully described yet, but this commit reserves
the room in the mbuf.
Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
---
lib/librte_mbuf/rte_mbuf.c | 2 ++
lib/librte_mbuf/rte_mbuf.h | 12 ++++++++++++
2 files changed, 14 insertions(+)
diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c
index 207bf3dd3..0e3e36a58 100644
--- a/lib/librte_mbuf/rte_mbuf.c
+++ b/lib/librte_mbuf/rte_mbuf.c
@@ -323,6 +323,7 @@ const char *rte_get_rx_ol_flag_name(uint64_t mask)
case PKT_RX_IEEE1588_TMST: return "PKT_RX_IEEE1588_TMST";
case PKT_RX_QINQ_STRIPPED: return "PKT_RX_QINQ_STRIPPED";
case PKT_RX_LRO: return "PKT_RX_LRO";
+ case PKT_RX_TIMESTAMP: return "PKT_RX_TIMESTAMP";
default: return NULL;
}
}
@@ -357,6 +358,7 @@ rte_get_rx_ol_flag_list(uint64_t mask, char *buf, size_t buflen)
{ PKT_RX_IEEE1588_TMST, PKT_RX_IEEE1588_TMST, NULL },
{ PKT_RX_QINQ_STRIPPED, PKT_RX_QINQ_STRIPPED, NULL },
{ PKT_RX_LRO, PKT_RX_LRO, NULL },
+ { PKT_RX_TIMESTAMP, PKT_RX_TIMESTAMP, NULL },
};
const char *name;
unsigned int i;
diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 349f0512e..9dd8e807e 100644
--- 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);
--
2.11.0
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