+static int enic_parse_ig_vlan_rewrite(__rte_unused const char *key,
+ const char *value,
+ void *opaque)
+{
+ struct enic *enic;
+
+ enic = (struct enic *)opaque;
+ if (strcmp(value, "trunk") == 0) {
+ /* Trunk mode: always tag */
+ enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_DEFAULT_TRUNK;
+ } else if (strcmp(value, "untag") == 0) {
+ /* Untag default VLAN mode: untag if VLAN = default VLAN */
+ enic->ig_vlan_rewrite_mode =
+ IG_VLAN_REWRITE_MODE_UNTAG_DEFAULT_VLAN;
+ } else if (strcmp(value, "priority") == 0) {
+ /*
+ * Priority-tag default VLAN mode: priority tag (VLAN header
+ * with ID=0) if VLAN = default
+ */
+ enic->ig_vlan_rewrite_mode =
+ IG_VLAN_REWRITE_MODE_PRIORITY_TAG_DEFAULT_VLAN;
+ } else if (strcmp(value, "pass") == 0) {
+ /* Pass through mode: do not touch tags */
+ enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_PASS_THRU;
+ } else {
+ dev_err(enic, "Invalid value for " ENIC_DEVARG_IG_VLAN_REWRITE
+ ": expected=trunk|untag|priority|pass given=%s\n",
+ value);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int enic_check_devargs(struct rte_eth_dev *dev)
+{
+ static const char *const valid_keys[] = {
+ ENIC_DEVARG_IG_VLAN_REWRITE,
+ NULL};
+ struct enic *enic = pmd_priv(dev);
+ struct rte_kvargs *kvlist;
+
+ ENICPMD_FUNC_TRACE();
+
+ enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_PASS_THRU;
+ if (!dev->device->devargs)
+ return 0;
+ kvlist = rte_kvargs_parse(dev->device->devargs->args, valid_keys);
+ if (!kvlist)
+ return -EINVAL;
+ if (rte_kvargs_process(kvlist, ENIC_DEVARG_IG_VLAN_REWRITE,
+ enic_parse_ig_vlan_rewrite, enic) < 0) {
+ rte_kvargs_free(kvlist);
+ return -EINVAL;
+ }
+ rte_kvargs_free(kvlist);
+ return 0;
+}
+