net/mlx5: support hardware TSO for VXLAN and GRE

This commit adds support for hardware TSO for tunneled packets.

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>

diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index 8be9e77..5deb6e8 100644 (file)
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -696,7 +696,9 @@ mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
        if (priv->tso)
                info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
        if (priv->tunnel_en)
-               info->tx_offload_capa |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM;
+               info->tx_offload_capa |= (DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
+                                         DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
+                                         DEV_TX_OFFLOAD_GRE_TNL_TSO);
        if (priv_get_ifname(priv, &ifname) == 0)
                info->if_index = if_nametoindex(ifname);
        /* FIXME: RETA update/query API expects the callee to know the size of

diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index 6ddde98..6aee69c 100644 (file)
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -566,10 +566,18 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
                                unsigned int copy_b;
                                uint8_t vlan_sz = (buf->ol_flags &
                                                  PKT_TX_VLAN_PKT) ? 4 : 0;
+                               const uint64_t is_tunneled =
+                                                       buf->ol_flags &
+                                                       (PKT_TX_TUNNEL_GRE |
+                                                        PKT_TX_TUNNEL_VXLAN);
 
                                tso_header_sz = buf->l2_len + vlan_sz +
                                                buf->l3_len + buf->l4_len;
 
+                               if (is_tunneled && txq->tunnel_en) {
+                                       tso_header_sz += buf->outer_l2_len +
+                                                        buf->outer_l3_len;
+                               }
                                if (unlikely(tso_header_sz >
                                             MLX5_MAX_TSO_HEADER))
                                        break;