eth_nxp_enet_qos_mac: enable pass through of multicasts

first check if the chip has a hosh module to futher filter MAC addresses if not then enabling the pass through for all multicast protocols Signed-off-by: Adib Taraben <[email protected]>
zephyrproject-rtos · Jan 7, 2025 · 7e2d020 · 7e2d020
1 parent 5c886fa
commit 7e2d020
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/drivers/ethernet/eth_nxp_enet_qos/eth_nxp_enet_qos_mac.c b/drivers/ethernet/eth_nxp_enet_qos/eth_nxp_enet_qos_mac.c
@@ -156,7 +156,7 @@ static void tx_dma_done(struct k_work *work)
 
 static enum ethernet_hw_caps eth_nxp_enet_qos_get_capabilities(const struct device *dev)
 {
-	return ETHERNET_LINK_100BASE_T | ETHERNET_LINK_10BASE_T;
+	return ETHERNET_LINK_100BASE_T | ETHERNET_LINK_10BASE_T | ENET_MAC_PACKET_FILTER_PM_MASK;
 }
 
 static void eth_nxp_enet_qos_rx(struct k_work *work)
@@ -375,6 +375,11 @@ static inline void enet_qos_mac_config_init(enet_qos_t *base,
 					data->mac_addr.addr[1] << 8  |
 					data->mac_addr.addr[0]);
 
+	/* permit multicast packets if there is no space in hash table for mac addresses */
+	if ((base->MAC_HW_FEAT[1] & ENET_MAC_HW_FEAT_HASHTBLSZ_MASK) == 0) {
+		base->MAC_PACKET_FILTER |= ENET_MAC_PACKET_FILTER_PM_MASK;
+	}
+
 	/* Set the reference for 1 microsecond of ENET QOS CSR clock cycles */
 	base->MAC_ONEUS_TIC_COUNTER =
 		ENET_QOS_REG_PREP(MAC_ONEUS_TIC_COUNTER, TIC_1US_CNTR,