+
+ if (tap_type) {
+ memset(&ifr, 0, sizeof(struct ifreq));
+ ifr.ifr_hwaddr.sa_family = AF_LOCAL;
+ rte_memcpy(ifr.ifr_hwaddr.sa_data, &pmd->eth_addr,
+ ETHER_ADDR_LEN);
+ if (tap_ioctl(pmd, SIOCSIFHWADDR, &ifr, 0, LOCAL_ONLY) < 0)
+ goto error_exit;
+ }
+
+ /*
+ * Set up everything related to rte_flow:
+ * - netlink socket
+ * - tap / remote if_index
+ * - mandatory QDISCs
+ * - rte_flow actual/implicit lists
+ * - implicit rules
+ */
+ pmd->nlsk_fd = tap_nl_init(0);
+ if (pmd->nlsk_fd == -1) {
+ RTE_LOG(WARNING, PMD, "%s: failed to create netlink socket.\n",
+ pmd->name);
+ goto disable_rte_flow;
+ }
+ pmd->if_index = if_nametoindex(pmd->name);
+ if (!pmd->if_index) {
+ RTE_LOG(ERR, PMD, "%s: failed to get if_index.\n", pmd->name);
+ goto disable_rte_flow;
+ }
+ if (qdisc_create_multiq(pmd->nlsk_fd, pmd->if_index) < 0) {
+ RTE_LOG(ERR, PMD, "%s: failed to create multiq qdisc.\n",
+ pmd->name);
+ goto disable_rte_flow;
+ }
+ if (qdisc_create_ingress(pmd->nlsk_fd, pmd->if_index) < 0) {
+ RTE_LOG(ERR, PMD, "%s: failed to create ingress qdisc.\n",
+ pmd->name);
+ goto disable_rte_flow;
+ }
+ LIST_INIT(&pmd->flows);
+
+ if (strlen(remote_iface)) {
+ pmd->remote_if_index = if_nametoindex(remote_iface);
+ if (!pmd->remote_if_index) {
+ RTE_LOG(ERR, PMD, "%s: failed to get %s if_index.\n",
+ pmd->name, remote_iface);
+ goto error_remote;
+ }
+ snprintf(pmd->remote_iface, RTE_ETH_NAME_MAX_LEN,
+ "%s", remote_iface);
+
+ /* Save state of remote device */
+ tap_ioctl(pmd, SIOCGIFFLAGS, &pmd->remote_initial_flags, 0, REMOTE_ONLY);
+
+ /* Replicate remote MAC address */
+ if (tap_ioctl(pmd, SIOCGIFHWADDR, &ifr, 0, REMOTE_ONLY) < 0) {
+ RTE_LOG(ERR, PMD, "%s: failed to get %s MAC address.\n",
+ pmd->name, pmd->remote_iface);
+ goto error_remote;
+ }
+ rte_memcpy(&pmd->eth_addr, ifr.ifr_hwaddr.sa_data,
+ ETHER_ADDR_LEN);
+ /* The desired MAC is already in ifreq after SIOCGIFHWADDR. */
+ if (tap_ioctl(pmd, SIOCSIFHWADDR, &ifr, 0, LOCAL_ONLY) < 0) {
+ RTE_LOG(ERR, PMD, "%s: failed to get %s MAC address.\n",
+ pmd->name, remote_iface);
+ goto error_remote;
+ }
+
+ /*
+ * Flush usually returns negative value because it tries to
+ * delete every QDISC (and on a running device, one QDISC at
+ * least is needed). Ignore negative return value.
+ */
+ qdisc_flush(pmd->nlsk_fd, pmd->remote_if_index);
+ if (qdisc_create_ingress(pmd->nlsk_fd,
+ pmd->remote_if_index) < 0) {
+ RTE_LOG(ERR, PMD, "%s: failed to create ingress qdisc.\n",
+ pmd->remote_iface);
+ goto error_remote;
+ }
+ LIST_INIT(&pmd->implicit_flows);
+ if (tap_flow_implicit_create(pmd, TAP_REMOTE_TX) < 0 ||
+ tap_flow_implicit_create(pmd, TAP_REMOTE_LOCAL_MAC) < 0 ||
+ tap_flow_implicit_create(pmd, TAP_REMOTE_BROADCAST) < 0 ||
+ tap_flow_implicit_create(pmd, TAP_REMOTE_BROADCASTV6) < 0) {
+ RTE_LOG(ERR, PMD,
+ "%s: failed to create implicit rules.\n",
+ pmd->name);
+ goto error_remote;
+ }