Signed-off-by: Jijiang Liu <jijiang.liu at intel.com>
---
 lib/librte_ether/rte_ethdev.c |   60 +++++++++++++++++++++++++++++++++++++++++
 1 files changed, 60 insertions(+), 0 deletions(-)

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index c3eed49..6725398 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -1004,6 +1004,66 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, 
uint16_t nb_tx_q,
        return 0;
 }

+int
+rte_eth_dev_tunnel_configure(uint8_t port_id,
+                            struct rte_eth_tunnel_conf *tunnel_conf)
+{
+       struct rte_eth_dev *dev;
+       struct rte_eth_dev_info dev_info;
+       int diag;
+
+       /* This function is only safe when called from the primary process
+       * * in a multi-process setup*/
+       RTE_PROC_PRIMARY_OR_ERR_RET(-E_RTE_SECONDARY);
+
+       RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -EINVAL);
+       
+       dev = &rte_eth_devices[port_id];
+
+       RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
+
+       /*
+        * * Check that the numbers of RX and TX queues are not greater
+        * * than the configured number of RX and TX queues supported by the
+        * * configured device.
+        * */
+       (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
+       if (tunnel_conf->rx_queue > dev->data->nb_rx_queues - 1) {
+               RTE_PMD_DEBUG_TRACE("ethdev port_id=%d nb_rx_queues=%d > %d\n",
+                               port_id, nb_rx_q, dev_info.max_rx_queues);
+               return -EINVAL;
+       }
+
+       if (tunnel_conf->tx_queue > dev->data->nb_rx_queues -1 ) {
+               RTE_PMD_DEBUG_TRACE("ethdev port_id=%d nb_tx_queues=%d > %d\n",
+                               port_id, nb_tx_q, dev_info.max_tx_queues);
+               return -EINVAL;
+       }
+
+       tunnel_conf->tunnel_flow = rte_zmalloc(NULL,
+                               sizeof(struct rte_eth_tunnel_flow)
+                               * tunnel_conf->nb_flow, 0);
+       
+       /* Copy the dev_conf parameter into the dev structure */
+       memcpy(dev->data->dev_conf.tunnel_conf[tunnel_conf->rx_queue],
+                       tunnel_conf, sizeof(struct rte_eth_tunnel_conf));
+
+       rte_eth_add_rx_callback(port_id, tunnel_conf->rx_queue,
+                               rte_eth_tunnel_decap, (void *)tunnel_conf);
+
+       rte_eth_add_tx_callback(port_id, tunnel_conf->tx_queue,
+                               rte_eth_tunnel_encap, (void *)tunnel_conf)
+
+       diag = (*dev->dev_ops->tunnel_configure)(dev);
+       if (diag != 0) {
+               RTE_PMD_DEBUG_TRACE("port%d dev_tunnel_configure = %d\n",
+                               port_id, diag);
+               return diag;
+       }
+
+       return 0;
+}
+
 static void
 rte_eth_dev_config_restore(uint8_t port_id)
 {
-- 
1.7.7.6

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