diff options
| author | Arınç ÜNAL <arinc.unal@arinc9.com> | 2023-06-17 09:26:47 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-06-20 09:40:26 +0100 |
| commit | 8332cf6fd7c7087dbc2067115b33979c9851bbc4 (patch) | |
| tree | a19a2cc752ab2c676ab2f750deee8961e6cfb357 /drivers/net/dsa/mt7530.c | |
| parent | d7c66073559386b836bded7cdc8b66ee5c049129 (diff) | |
net: dsa: mt7530: fix handling of LLDP frames
LLDP frames are link-local frames, therefore they must be trapped to the
CPU port. Currently, the MT753X switches treat LLDP frames as regular
multicast frames, therefore flooding them to user ports. To fix this, set
LLDP frames to be trapped to the CPU port(s).
Fixes: b8f126a8d543 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/mt7530.c')
| -rw-r--r-- | drivers/net/dsa/mt7530.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 5e4f6965cebd..6d6ff293900c 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -991,6 +991,10 @@ mt753x_trap_frames(struct mt7530_priv *priv) /* Trap BPDUs to the CPU port(s) */ mt7530_rmw(priv, MT753X_BPC, MT753X_BPDU_PORT_FW_MASK, MT753X_BPDU_CPU_ONLY); + + /* Trap LLDP frames with :0E MAC DA to the CPU port(s) */ + mt7530_rmw(priv, MT753X_RGAC2, MT753X_R0E_PORT_FW_MASK, + MT753X_R0E_PORT_FW(MT753X_BPDU_CPU_ONLY)); } static int |