drivers/net: share vdev data to secondary process

[dpdk.git] / drivers / net / tap / rte_eth_tap.c

diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index b18efd8..cca5852 100644 (file)
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -1721,6 +1721,7 @@ rte_pmd_tap_probe(struct rte_vdev_device *dev)
        char tap_name[RTE_ETH_NAME_MAX_LEN];
        char remote_iface[RTE_ETH_NAME_MAX_LEN];
        struct ether_addr user_mac = { .addr_bytes = {0} };
+       struct rte_eth_dev *eth_dev;
 
        tap_type = 1;
        strcpy(tuntap_name, "TAP");
@@ -1728,6 +1729,18 @@ rte_pmd_tap_probe(struct rte_vdev_device *dev)
        name = rte_vdev_device_name(dev);
        params = rte_vdev_device_args(dev);
 
+       if (rte_eal_process_type() == RTE_PROC_SECONDARY &&
+           strlen(params) == 0) {
+               eth_dev = rte_eth_dev_attach_secondary(name);
+               if (!eth_dev) {
+                       RTE_LOG(ERR, PMD, "Failed to probe %s\n", name);
+                       return -1;
+               }
+               /* TODO: request info from primary to set up Rx and Tx */
+               eth_dev->dev_ops = &ops;
+               return 0;
+       }
+
        speed = ETH_SPEED_NUM_10G;
        snprintf(tap_name, sizeof(tap_name), "%s%d",
                 DEFAULT_TAP_NAME, tap_unit++);