net/mlx5: support UDP tunnel adding

This adds support for adding a new UDP tunnel port
on a specific VXLAN types.

Currently we only support VXLAN, VXLAN-GPE on ports
4789, 4790 respectively. Without having to configure
anything in the NIC.

Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 962c0d5..dc7b10b 100644 (file)
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -744,6 +744,31 @@ mlx5_free_verbs_buf(void *ptr, void *data __rte_unused)
        rte_free(ptr);
 }
 
+/**
+ * DPDK callback to add udp tunnel port
+ *
+ * @param[in] dev
+ *   A pointer to eth_dev
+ * @param[in] udp_tunnel
+ *   A pointer to udp tunnel
+ *
+ * @return
+ *   0 on valid udp ports and tunnels, -ENOTSUP otherwise.
+ */
+int
+mlx5_udp_tunnel_port_add(struct rte_eth_dev *dev __rte_unused,
+                        struct rte_eth_udp_tunnel *udp_tunnel)
+{
+       assert(udp_tunnel != NULL);
+       if (udp_tunnel->prot_type == RTE_TUNNEL_TYPE_VXLAN &&
+           udp_tunnel->udp_port == 4789)
+               return 0;
+       if (udp_tunnel->prot_type == RTE_TUNNEL_TYPE_VXLAN_GPE &&
+           udp_tunnel->udp_port == 4790)
+               return 0;
+       return -ENOTSUP;
+}
+
 /**
  * Initialize process private data structure.
  *
@@ -962,6 +987,7 @@ const struct eth_dev_ops mlx5_dev_ops = {
        .rx_queue_intr_enable = mlx5_rx_intr_enable,
        .rx_queue_intr_disable = mlx5_rx_intr_disable,
        .is_removed = mlx5_is_removed,
+       .udp_tunnel_port_add  = mlx5_udp_tunnel_port_add,
 };
 
 /* Available operations from secondary process. */

diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 1f279dc..ab2e79c 100644 (file)
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -674,6 +674,8 @@ int64_t mlx5_get_dbr(struct rte_eth_dev *dev,
                     struct mlx5_devx_dbr_page **dbr_page);
 int32_t mlx5_release_dbr(struct rte_eth_dev *dev, uint32_t umem_id,
                         uint64_t offset);
+int mlx5_udp_tunnel_port_add(struct rte_eth_dev *dev,
+                             struct rte_eth_udp_tunnel *udp_tunnel);
 
 /* mlx5_ethdev.c */