[PATCH net-next v10 10/15] ax88179_178a: Add AX179A/AX279 multicast configuration

From: Birger Koblitz

Date: Fri Sep 04 2026 - 13:40:09 EST


Add support for conditionally setting the ip_alignement flag
AX_RX_CTL_IPE in AX_RX_CTL and make sure that AX_RX_CTL_DROPCRCERR
is also set to be consistent with the initial configuration in
ax88179_reset()

Signed-off-by: Birger Koblitz <mail@xxxxxxxxxxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
---
drivers/net/usb/ax88179_lib.c | 8 ++++++--
drivers/net/usb/ax88179a_devices.c | 1 +
2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/ax88179_lib.c b/drivers/net/usb/ax88179_lib.c
index 3324069e90fc352048817963f27a49ed3872b348..708b0b23f1363daf90f329a3e6b6a2721d110387 100644
--- a/drivers/net/usb/ax88179_lib.c
+++ b/drivers/net/usb/ax88179_lib.c
@@ -305,10 +305,14 @@ int ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, u8
void ax88179_set_multicast(struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
- struct ax88179_data *data = dev->driver_priv;
u8 *m_filter = ((u8 *)dev->data);
+ struct ax88179_data *data;
+
+ data = dev->driver_priv;

- data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE);
+ data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_DROPCRCERR);
+ if (data->ip_align)
+ data->rxctl |= AX_RX_CTL_IPE;

if (net->flags & IFF_PROMISC) {
data->rxctl |= AX_RX_CTL_PRO;
diff --git a/drivers/net/usb/ax88179a_devices.c b/drivers/net/usb/ax88179a_devices.c
index 12885a4936223def82e4b85951a566cbb64d2193..e3dc244f79e538c55d64c747e1bb65b7d873247f 100644
--- a/drivers/net/usb/ax88179a_devices.c
+++ b/drivers/net/usb/ax88179a_devices.c
@@ -608,6 +608,7 @@ static const struct net_device_ops ax88179a_netdev_ops = {
.ndo_set_mac_address = ax88179_set_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_eth_ioctl = usbnet_mii_ioctl,
+ .ndo_set_rx_mode = ax88179_set_multicast,
.ndo_set_features = ax88179a_set_features,
.ndo_vlan_rx_add_vid = ax88179a_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = ax88179a_vlan_rx_kill_vid,

--
2.47.3