diff options
| author | Hauke Mehrtens <hauke@hauke-m.de> | 2019-05-06 00:25:06 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-05-07 10:34:44 -0700 |
| commit | 30d8938384c75e1aad8addf55cb8d152d9d3a135 (patch) | |
| tree | 73e1fa73bcc0eee2ae8429fe47198336d1c6405f /drivers/net/dsa/lantiq_gswip.c | |
| parent | 14cfbdac6680bc87f6b9f6196d4d4ec044a01481 (diff) | |
net: dsa: lantiq: Allow special tags only on CPU port
Allow the special tag in ingress only on the CPU port and not on all
ports. A packet with a special tag could circumvent the hardware
forwarding and should only be allowed on the CPU port where Linux
controls the port.
Fixes: 14fceff4771e ("net: dsa: Add Lantiq / Intel DSA driver for vrx200)"
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/lantiq_gswip.c')
| -rw-r--r-- | drivers/net/dsa/lantiq_gswip.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c index d8328866908c..0a2259cb09df 100644 --- a/drivers/net/dsa/lantiq_gswip.c +++ b/drivers/net/dsa/lantiq_gswip.c @@ -461,8 +461,6 @@ static int gswip_port_enable(struct dsa_switch *ds, int port, GSWIP_FDMA_PCTRLp(port)); gswip_switch_mask(priv, 0, GSWIP_SDMA_PCTRL_EN, GSWIP_SDMA_PCTRLp(port)); - gswip_switch_mask(priv, 0, GSWIP_PCE_PCTRL_0_INGRESS, - GSWIP_PCE_PCTRL_0p(port)); if (!dsa_is_cpu_port(ds, port)) { u32 macconf = GSWIP_MDIO_PHY_LINK_AUTO | @@ -578,6 +576,10 @@ static int gswip_setup(struct dsa_switch *ds) gswip_switch_mask(priv, 0, GSWIP_FDMA_PCTRL_STEN, GSWIP_FDMA_PCTRLp(cpu_port)); + /* accept special tag in ingress direction */ + gswip_switch_mask(priv, 0, GSWIP_PCE_PCTRL_0_INGRESS, + GSWIP_PCE_PCTRL_0p(cpu_port)); + gswip_switch_mask(priv, 0, GSWIP_MAC_CTRL_2_MLEN, GSWIP_MAC_CTRL_2p(cpu_port)); gswip_switch_w(priv, VLAN_ETH_FRAME_LEN + 8, GSWIP_MAC_FLEN); |