Commit 65b66250 authored by Steen Hegelund's avatar Steen Hegelund Committed by Paolo Abeni
Browse files

net: microchip: sparx5: Discard frames with SMAC multicast addresses 



A valid frame should never use a multicast address as its source MAC
address, so discard these invalid frames.

Signed-off-by: default avatarSteen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 72bc7f16

drivers/net/ethernet/microchip/sparx5/sparx5_port.c

+5 −0
Original line number Diff line number Diff line
@@ -1071,6 +1071,11 @@ int sparx5_port_init(struct sparx5 *sparx5, 
	/* Discard pause frame 01-80-C2-00-00-01 */

	spx5_wr(PAUSE_DISCARD, sparx5, ANA_CL_CAPTURE_BPDU_CFG(port->portno));



	/* Discard SMAC multicast */

	spx5_rmw(ANA_CL_FILTER_CTRL_FILTER_SMAC_MC_DIS_SET(0),

		 ANA_CL_FILTER_CTRL_FILTER_SMAC_MC_DIS,

		 sparx5, ANA_CL_FILTER_CTRL(port->portno));



	if (conf->portmode == PHY_INTERFACE_MODE_QSGMII ||

	    conf->portmode == PHY_INTERFACE_MODE_SGMII) {

		err = sparx5_serdes_set(sparx5, port, conf);