i40e: VXLAN packet identification

[dpdk.git] / lib / librte_pmd_i40e / i40e_ethdev.c

diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c b/lib/librte_pmd_i40e/i40e_ethdev.c
index 3b75f0f..3467bf8 100644 (file)
--- a/lib/librte_pmd_i40e/i40e_ethdev.c
+++ b/lib/librte_pmd_i40e/i40e_ethdev.c
@@ -186,6 +186,10 @@ static int i40e_dev_rss_hash_update(struct rte_eth_dev *dev,
                                    struct rte_eth_rss_conf *rss_conf);
 static int i40e_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
                                      struct rte_eth_rss_conf *rss_conf);
+static int i40e_dev_udp_tunnel_add(struct rte_eth_dev *dev,
+                               struct rte_eth_udp_tunnel *udp_tunnel);
+static int i40e_dev_udp_tunnel_del(struct rte_eth_dev *dev,
+                               struct rte_eth_udp_tunnel *udp_tunnel);
 static int i40e_dev_filter_ctrl(struct rte_eth_dev *dev,
                                enum rte_filter_type filter_type,
                                enum rte_filter_op filter_op,
@@ -241,6 +245,8 @@ static struct eth_dev_ops i40e_eth_dev_ops = {
        .reta_query                   = i40e_dev_rss_reta_query,
        .rss_hash_update              = i40e_dev_rss_hash_update,
        .rss_hash_conf_get            = i40e_dev_rss_hash_conf_get,
+       .udp_tunnel_add               = i40e_dev_udp_tunnel_add,
+       .udp_tunnel_del               = i40e_dev_udp_tunnel_del,
        .filter_ctrl                  = i40e_dev_filter_ctrl,
 };
 
@@ -4092,6 +4098,157 @@ i40e_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
        return 0;
 }
 
+static int
+i40e_get_vxlan_port_idx(struct i40e_pf *pf, uint16_t port)
+{
+       uint8_t i;
+
+       for (i = 0; i < I40E_MAX_PF_UDP_OFFLOAD_PORTS; i++) {
+               if (pf->vxlan_ports[i] == port)
+                       return i;
+       }
+
+       return -1;
+}
+
+static int
+i40e_add_vxlan_port(struct i40e_pf *pf, uint16_t port)
+{
+       int  idx, ret;
+       uint8_t filter_idx;
+       struct i40e_hw *hw = I40E_PF_TO_HW(pf);
+
+       idx = i40e_get_vxlan_port_idx(pf, port);
+
+       /* Check if port already exists */
+       if (idx >= 0) {
+               PMD_DRV_LOG(ERR, "Port %d already offloaded", port);
+               return -EINVAL;
+       }
+
+       /* Now check if there is space to add the new port */
+       idx = i40e_get_vxlan_port_idx(pf, 0);
+       if (idx < 0) {
+               PMD_DRV_LOG(ERR, "Maximum number of UDP ports reached,"
+                       "not adding port %d", port);
+               return -ENOSPC;
+       }
+
+       ret =  i40e_aq_add_udp_tunnel(hw, port, I40E_AQC_TUNNEL_TYPE_VXLAN,
+                                       &filter_idx, NULL);
+       if (ret < 0) {
+               PMD_DRV_LOG(ERR, "Failed to add VxLAN UDP port %d", port);
+               return -1;
+       }
+
+       PMD_DRV_LOG(INFO, "Added %s port %d with AQ command with index %d",
+                        port,  filter_index);
+
+       /* New port: add it and mark its index in the bitmap */
+       pf->vxlan_ports[idx] = port;
+       pf->vxlan_bitmap |= (1 << idx);
+
+       if (!(pf->flags & I40E_FLAG_VXLAN))
+               pf->flags |= I40E_FLAG_VXLAN;
+
+       return 0;
+}
+
+static int
+i40e_del_vxlan_port(struct i40e_pf *pf, uint16_t port)
+{
+       int idx;
+       struct i40e_hw *hw = I40E_PF_TO_HW(pf);
+
+       if (!(pf->flags & I40E_FLAG_VXLAN)) {
+               PMD_DRV_LOG(ERR, "VxLAN UDP port was not configured.");
+               return -EINVAL;
+       }
+
+       idx = i40e_get_vxlan_port_idx(pf, port);
+
+       if (idx < 0) {
+               PMD_DRV_LOG(ERR, "Port %d doesn't exist", port);
+               return -EINVAL;
+       }
+
+       if (i40e_aq_del_udp_tunnel(hw, idx, NULL) < 0) {
+               PMD_DRV_LOG(ERR, "Failed to delete VxLAN UDP port %d", port);
+               return -1;
+       }
+
+       PMD_DRV_LOG(INFO, "Deleted port %d with AQ command with index %d",
+                       port, idx);
+
+       pf->vxlan_ports[idx] = 0;
+       pf->vxlan_bitmap &= ~(1 << idx);
+
+       if (!pf->vxlan_bitmap)
+               pf->flags &= ~I40E_FLAG_VXLAN;
+
+       return 0;
+}
+
+/* Add UDP tunneling port */
+static int
+i40e_dev_udp_tunnel_add(struct rte_eth_dev *dev,
+                       struct rte_eth_udp_tunnel *udp_tunnel)
+{
+       int ret = 0;
+       struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+
+       if (udp_tunnel == NULL)
+               return -EINVAL;
+
+       switch (udp_tunnel->prot_type) {
+       case RTE_TUNNEL_TYPE_VXLAN:
+               ret = i40e_add_vxlan_port(pf, udp_tunnel->udp_port);
+               break;
+
+       case RTE_TUNNEL_TYPE_GENEVE:
+       case RTE_TUNNEL_TYPE_TEREDO:
+               PMD_DRV_LOG(ERR, "Tunnel type is not supported now.");
+               ret = -1;
+               break;
+
+       default:
+               PMD_DRV_LOG(ERR, "Invalid tunnel type");
+               ret = -1;
+               break;
+       }
+
+       return ret;
+}
+
+/* Remove UDP tunneling port */
+static int
+i40e_dev_udp_tunnel_del(struct rte_eth_dev *dev,
+                       struct rte_eth_udp_tunnel *udp_tunnel)
+{
+       int ret = 0;
+       struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+
+       if (udp_tunnel == NULL)
+               return -EINVAL;
+
+       switch (udp_tunnel->prot_type) {
+       case RTE_TUNNEL_TYPE_VXLAN:
+               ret = i40e_del_vxlan_port(pf, udp_tunnel->udp_port);
+               break;
+       case RTE_TUNNEL_TYPE_GENEVE:
+       case RTE_TUNNEL_TYPE_TEREDO:
+               PMD_DRV_LOG(ERR, "Tunnel type is not supported now.");
+               ret = -1;
+               break;
+       default:
+               PMD_DRV_LOG(ERR, "Invalid tunnel type");
+               ret = -1;
+               break;
+       }
+
+       return ret;
+}
+
 /* Configure RSS */
 static int
 i40e_pf_config_rss(struct i40e_pf *pf)