[dpdk-dev,v2,2/6] mbuf: use the reserved 16 bits for double vlan
Commit Message
Use the reserved 16 bits in rte_mbuf structure for the outer vlan,
also add QinQ offloading flags for both RX and TX sides.
Signed-off-by: Helin Zhang <helin.zhang@intel.com>
---
lib/librte_mbuf/rte_mbuf.h | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
v2 changes:
* Fixed a typo.
@@ -101,11 +101,17 @@ extern "C" {
#define PKT_RX_TUNNEL_IPV6_HDR (1ULL << 12) /**< RX tunnel packet with IPv6 header. */
#define PKT_RX_FDIR_ID (1ULL << 13) /**< FD id reported if FDIR match. */
#define PKT_RX_FDIR_FLX (1ULL << 14) /**< Flexible bytes reported if FDIR match. */
+#define PKT_RX_QINQ_PKT (1ULL << 15) /**< RX packet with double VLAN stripped. */
/* add new RX flags here */
/* add new TX flags here */
/**
+ * Second VLAN insertion (QinQ) flag.
+ */
+#define PKT_TX_QINQ_PKT (1ULL << 49) /**< TX packet with double VLAN inserted. */
+
+/**
* TCP segmentation offload. To enable this offload feature for a
* packet to be transmitted on hardware supporting TSO:
* - set the PKT_TX_TCP_SEG flag in mbuf->ol_flags (this flag implies
@@ -279,7 +285,7 @@ struct rte_mbuf {
uint16_t data_len; /**< Amount of data in segment buffer. */
uint32_t pkt_len; /**< Total pkt len: sum of all segments. */
uint16_t vlan_tci; /**< VLAN Tag Control Identifier (CPU order) */
- uint16_t reserved;
+ uint16_t vlan_tci_outer; /**< Outer VLAN Tag Control Identifier (CPU order) */
union {
uint32_t rss; /**< RSS hash result if RSS enabled */
struct {
@@ -777,6 +783,7 @@ static inline void rte_pktmbuf_reset(struct rte_mbuf *m)
m->pkt_len = 0;
m->tx_offload = 0;
m->vlan_tci = 0;
+ m->vlan_tci_outer = 0;
m->nb_segs = 1;
m->port = 0xff;
@@ -849,6 +856,7 @@ static inline void rte_pktmbuf_attach(struct rte_mbuf *mi, struct rte_mbuf *m)
mi->data_len = m->data_len;
mi->port = m->port;
mi->vlan_tci = m->vlan_tci;
+ mi->vlan_tci_outer = m->vlan_tci_outer;
mi->tx_offload = m->tx_offload;
mi->hash = m->hash;