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| author | Steen Hegelund <steen.hegelund@microchip.com> | 2023-02-14 11:40:40 +0100 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2023-02-16 08:59:48 +0100 |
| commit | 65b6625069a42edf2a813dd1c50604c6c6236fe5 (patch) | |
| tree | c770012583cb1e1df4e515a7bd8fd6a2aca84c0c /drivers/net/ethernet/microchip/sparx5/sparx5_port.c | |
| parent | 72bc7f163179cb0b39e1a18dbf69e175267ce500 (diff) | |
| download | linux-stable-65b6625069a42edf2a813dd1c50604c6c6236fe5.tar.gz linux-stable-65b6625069a42edf2a813dd1c50604c6c6236fe5.tar.bz2 linux-stable-65b6625069a42edf2a813dd1c50604c6c6236fe5.zip | |
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: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/ethernet/microchip/sparx5/sparx5_port.c')
| -rw-r--r-- | drivers/net/ethernet/microchip/sparx5/sparx5_port.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c index 246259b2ae94..3a1b1a1f5a19 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c @@ -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); |