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net: dsa: mt7530: always install FDB entries with IVL and FID 1

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This reverts commit 7e77702178 ("mt7530 mt7530_fdb_write only set ivl
bit vid larger than 1").

Before this series, the default value of all ports' PVID is 1, which is
copied into the FDB entry, even if the ports are VLAN unaware. So
`bridge fdb show` will show entries like `dev swp0 vlan 1 self` even on
a VLAN-unaware bridge.

The blamed commit does not solve that issue completely, instead it may
cause a new issue that FDB is inaccessible in a VLAN-aware bridge with
PVID 1.

This series sets PVID to 0 on VLAN-unaware ports, so `bridge fdb show`
will no longer print `vlan 1` on VLAN-unaware bridges, and that special
case in fdb_write is not required anymore.

Set FDB entries' filter ID to 1 to match the VLAN table.

Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
DENG Qingfang 2021-08-04 00:04:04 +08:00 committed by David S. Miller
parent a9e3f62dff
commit 73c447cacb
2 changed files with 3 additions and 2 deletions
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2
drivers/net/dsa/mt7530.c
View File

@ -366,8 +366,8 @@ mt7530_fdb_write(struct mt7530_priv *priv, u16 vid,
int i;
reg[1] |= vid & CVID_MASK;
if (vid > 1)
reg[1] |= ATA2_IVL;
reg[1] |= ATA2_FID(FID_BRIDGED);
reg[2] |= (aging & AGE_TIMER_MASK) << AGE_TIMER;
reg[2] |= (port_mask & PORT_MAP_MASK) << PORT_MAP;
/* STATIC_ENT indicate that entry is static wouldn't

1
drivers/net/dsa/mt7530.h
View File

@ -80,6 +80,7 @@ enum mt753x_bpdu_port_fw {
#define STATIC_ENT 3
#define MT7530_ATA2 0x78
#define ATA2_IVL BIT(15)
#define ATA2_FID(x) (((x) & 0x7) << 12)
/* Register for address table write data */
#define MT7530_ATWD 0x7c