+static int bnxt_add_mac_filter(struct bnxt *bp, struct bnxt_vnic_info *vnic,
+ struct rte_ether_addr *mac_addr, uint32_t index)
+{
+ struct bnxt_filter_info *filter;
+ int rc = 0;
+
+ filter = STAILQ_FIRST(&vnic->filter);
+ /* During bnxt_mac_addr_add_op, default MAC is
+ * already programmed, so skip it. But, when
+ * hw-vlan-filter is turned OFF from ON, default
+ * MAC filter should be restored
+ */
+ if (filter->dflt)
+ return 0;
+
+ filter = bnxt_alloc_filter(bp);
+ if (!filter) {
+ PMD_DRV_LOG(ERR, "L2 filter alloc failed\n");
+ return -ENODEV;
+ }
+
+ filter->mac_index = index;
+ /* bnxt_alloc_filter copies default MAC to filter->l2_addr. So,
+ * if the MAC that's been programmed now is a different one, then,
+ * copy that addr to filter->l2_addr
+ */
+ if (mac_addr)
+ memcpy(filter->l2_addr, mac_addr, RTE_ETHER_ADDR_LEN);
+ filter->flags |= HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_OUTERMOST;
+
+ rc = bnxt_hwrm_set_l2_filter(bp, vnic->fw_vnic_id, filter);
+ if (!rc) {
+ if (filter->mac_index == 0) {
+ filter->dflt = true;
+ STAILQ_INSERT_HEAD(&vnic->filter, filter, next);
+ } else {
+ STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
+ }
+ } else {
+ filter->mac_index = INVALID_MAC_INDEX;
+ memset(&filter->l2_addr, 0, RTE_ETHER_ADDR_LEN);
+ bnxt_free_filter(bp, filter);
+ }
+
+ return rc;
+}
+