+/* Populate the mac address from physically available (u-boot/firmware) and/or
+ * one set by higher layers like MC (restool) etc.
+ * Returns the table of MAC entries (multiple entries)
+ */
+static int
+populate_mac_addr(struct fsl_mc_io *dpni_dev, struct dpaa2_dev_priv *priv,
+ struct ether_addr *mac_entry)
+{
+ int ret;
+ struct ether_addr phy_mac = {}, prime_mac = {};
+
+ /* Get the physical device MAC address */
+ ret = dpni_get_port_mac_addr(dpni_dev, CMD_PRI_LOW, priv->token,
+ phy_mac.addr_bytes);
+ if (ret) {
+ DPAA2_PMD_ERR("DPNI get physical port MAC failed: %d", ret);
+ goto cleanup;
+ }
+
+ ret = dpni_get_primary_mac_addr(dpni_dev, CMD_PRI_LOW, priv->token,
+ prime_mac.addr_bytes);
+ if (ret) {
+ DPAA2_PMD_ERR("DPNI get Prime port MAC failed: %d", ret);
+ goto cleanup;
+ }
+
+ /* Now that both MAC have been obtained, do:
+ * if not_empty_mac(phy) && phy != Prime, overwrite prime with Phy
+ * and return phy
+ * If empty_mac(phy), return prime.
+ * if both are empty, create random MAC, set as prime and return
+ */
+ if (!is_zero_ether_addr(&phy_mac)) {
+ /* If the addresses are not same, overwrite prime */
+ if (!is_same_ether_addr(&phy_mac, &prime_mac)) {
+ ret = dpni_set_primary_mac_addr(dpni_dev, CMD_PRI_LOW,
+ priv->token,
+ phy_mac.addr_bytes);
+ if (ret) {
+ DPAA2_PMD_ERR("Unable to set MAC Address: %d",
+ ret);
+ goto cleanup;
+ }
+ memcpy(&prime_mac, &phy_mac, sizeof(struct ether_addr));
+ }
+ } else if (is_zero_ether_addr(&prime_mac)) {
+ /* In case phys and prime, both are zero, create random MAC */
+ eth_random_addr(prime_mac.addr_bytes);
+ ret = dpni_set_primary_mac_addr(dpni_dev, CMD_PRI_LOW,
+ priv->token,
+ prime_mac.addr_bytes);
+ if (ret) {
+ DPAA2_PMD_ERR("Unable to set MAC Address: %d", ret);
+ goto cleanup;
+ }
+ }
+
+ /* prime_mac the final MAC address */
+ memcpy(mac_entry, &prime_mac, sizeof(struct ether_addr));
+ return 0;
+
+cleanup:
+ return -1;
+}
+