i40e: VXLAN packet identification

Implement the configuration API of VXLAN destination UDP port,
and add new Rx offload flags for supporting VXLAN packet offload.

Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Tested-by: Yong Liu <yong.liu@intel.com>

diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 497d88b..9af3bd9 100644 (file)
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -91,6 +91,8 @@ extern "C" {
 #define PKT_RX_IPV6_HDR_EXT  (1ULL << 8)  /**< RX packet with extended IPv6 header. */
 #define PKT_RX_IEEE1588_PTP  (1ULL << 9)  /**< RX IEEE1588 L2 Ethernet PT Packet. */
 #define PKT_RX_IEEE1588_TMST (1ULL << 10) /**< RX IEEE1588 L2/L4 timestamped packet.*/
+#define PKT_RX_TUNNEL_IPV4_HDR (1ULL << 11) /**< RX tunnel packet with IPv4 header.*/
+#define PKT_RX_TUNNEL_IPV6_HDR (1ULL << 12) /**< RX tunnel packet with IPv6 header. */
 
 #define PKT_TX_VLAN_PKT      (1ULL << 55) /**< TX packet is a 802.1q VLAN packet. */
 #define PKT_TX_IP_CKSUM      (1ULL << 54) /**< IP cksum of TX pkt. computed by NIC. */

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)

diff --git a/lib/librte_pmd_i40e/i40e_ethdev.h b/lib/librte_pmd_i40e/i40e_ethdev.h
index 1d42cd2..826a1fb 100644 (file)
--- a/lib/librte_pmd_i40e/i40e_ethdev.h
+++ b/lib/librte_pmd_i40e/i40e_ethdev.h
@@ -60,13 +60,15 @@
 #define I40E_FLAG_HEADER_SPLIT_DISABLED (1ULL << 4)
 #define I40E_FLAG_HEADER_SPLIT_ENABLED  (1ULL << 5)
 #define I40E_FLAG_FDIR                  (1ULL << 6)
+#define I40E_FLAG_VXLAN                 (1ULL << 7)
 #define I40E_FLAG_ALL (I40E_FLAG_RSS | \
                       I40E_FLAG_DCB | \
                       I40E_FLAG_VMDQ | \
                       I40E_FLAG_SRIOV | \
                       I40E_FLAG_HEADER_SPLIT_DISABLED | \
                       I40E_FLAG_HEADER_SPLIT_ENABLED | \
-                      I40E_FLAG_FDIR)
+                      I40E_FLAG_FDIR | \
+                      I40E_FLAG_VXLAN)
 
 #define I40E_RSS_OFFLOAD_ALL ( \
        ETH_RSS_NONF_IPV4_UDP | \
@@ -246,6 +248,10 @@ struct i40e_pf {
        uint16_t vmdq_nb_qps; /* The number of queue pairs of VMDq */
        uint16_t vf_nb_qps; /* The number of queue pairs of VF */
        uint16_t fdir_nb_qps; /* The number of queue pairs of Flow Director */
+
+       /* store VxLAN UDP ports */
+       uint16_t vxlan_ports[I40E_MAX_PF_UDP_OFFLOAD_PORTS];
+       uint16_t vxlan_bitmap; /* Vxlan bit mask */
 };
 
 enum pending_msg {

diff --git a/lib/librte_pmd_i40e/i40e_rxtx.c b/lib/librte_pmd_i40e/i40e_rxtx.c
index 2b53677..2108290 100644 (file)
--- a/lib/librte_pmd_i40e/i40e_rxtx.c
+++ b/lib/librte_pmd_i40e/i40e_rxtx.c
@@ -208,34 +208,34 @@ i40e_rxd_ptype_to_pkt_flags(uint64_t qword)
                PKT_RX_IPV4_HDR_EXT, /* PTYPE 56 */
                PKT_RX_IPV4_HDR_EXT, /* PTYPE 57 */
                PKT_RX_IPV4_HDR_EXT, /* PTYPE 58 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 59 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 60 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 61 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 59 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 60 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 61 */
                0, /* PTYPE 62 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 63 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 64 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 65 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 66 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 67 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 68 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 63 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 64 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 65 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 66 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 67 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 68 */
                0, /* PTYPE 69 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 70 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 71 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 72 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 73 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 74 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 75 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 76 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 70 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 71 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 72 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 73 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 74 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 75 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 76 */
                0, /* PTYPE 77 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 78 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 79 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 80 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 81 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 82 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 83 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 78 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 79 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 80 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 81 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 82 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 83 */
                0, /* PTYPE 84 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 85 */
-               PKT_RX_IPV4_HDR_EXT, /* PTYPE 86 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 85 */
+               PKT_RX_TUNNEL_IPV4_HDR, /* PTYPE 86 */
                PKT_RX_IPV4_HDR_EXT, /* PTYPE 87 */
                PKT_RX_IPV6_HDR, /* PTYPE 88 */
                PKT_RX_IPV6_HDR, /* PTYPE 89 */
@@ -274,34 +274,34 @@ i40e_rxd_ptype_to_pkt_flags(uint64_t qword)
                PKT_RX_IPV6_HDR_EXT, /* PTYPE 122 */
                PKT_RX_IPV6_HDR_EXT, /* PTYPE 123 */
                PKT_RX_IPV6_HDR_EXT, /* PTYPE 124 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 125 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 126 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 127 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 125 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 126 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 127 */
                0, /* PTYPE 128 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 129 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 130 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 131 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 132 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 133 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 134 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 129 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 130 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 131 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 132 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 133 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 134 */
                0, /* PTYPE 135 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 136 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 137 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 138 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 139 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 140 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 141 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 142 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 136 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 137 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 138 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 139 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 140 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 141 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 142 */
                0, /* PTYPE 143 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 144 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 145 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 146 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 147 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 148 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 149 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 144 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 145 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 146 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 147 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 148 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 149 */
                0, /* PTYPE 150 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 151 */
-               PKT_RX_IPV6_HDR_EXT, /* PTYPE 152 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 151 */
+               PKT_RX_TUNNEL_IPV6_HDR, /* PTYPE 152 */
                PKT_RX_IPV6_HDR_EXT, /* PTYPE 153 */
                0, /* PTYPE 154 */
                0, /* PTYPE 155 */
@@ -638,6 +638,10 @@ i40e_rx_scan_hw_ring(struct i40e_rx_queue *rxq)
                        pkt_flags |= i40e_rxd_error_to_pkt_flags(qword1);
                        pkt_flags |= i40e_rxd_ptype_to_pkt_flags(qword1);
                        mb->ol_flags = pkt_flags;
+
+                       mb->packet_type = (uint16_t)((qword1 &
+                                       I40E_RXD_QW1_PTYPE_MASK) >>
+                                       I40E_RXD_QW1_PTYPE_SHIFT);
                        if (pkt_flags & PKT_RX_RSS_HASH)
                                mb->hash.rss = rte_le_to_cpu_32(\
                                        rxdp->wb.qword0.hi_dword.rss);
@@ -873,6 +877,8 @@ i40e_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
                pkt_flags = i40e_rxd_status_to_pkt_flags(qword1);
                pkt_flags |= i40e_rxd_error_to_pkt_flags(qword1);
                pkt_flags |= i40e_rxd_ptype_to_pkt_flags(qword1);
+               rxm->packet_type = (uint16_t)((qword1 & I40E_RXD_QW1_PTYPE_MASK) >>
+                               I40E_RXD_QW1_PTYPE_SHIFT);
                rxm->ol_flags = pkt_flags;
                if (pkt_flags & PKT_RX_RSS_HASH)
                        rxm->hash.rss =
@@ -1027,6 +1033,9 @@ i40e_recv_scattered_pkts(void *rx_queue,
                pkt_flags = i40e_rxd_status_to_pkt_flags(qword1);
                pkt_flags |= i40e_rxd_error_to_pkt_flags(qword1);
                pkt_flags |= i40e_rxd_ptype_to_pkt_flags(qword1);
+               first_seg->packet_type = (uint16_t)((qword1 &
+                                       I40E_RXD_QW1_PTYPE_MASK) >>
+                                       I40E_RXD_QW1_PTYPE_SHIFT);
                first_seg->ol_flags = pkt_flags;
                if (pkt_flags & PKT_RX_RSS_HASH)
                        rxm->hash.rss =