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| author |   DENG Qingfang <dqfext@gmail.com> | 2020-04-14 14:34:08 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-04-16 13:32:05 -0700 |
| commit | e045124e93995fe01e42ed530003ddba5d55db4f (patch) | |
| tree | 0433f83ca08ddd44d3e21f6a3b718246ba5ee5a4 | |
| parent | tipc: fix incorrect increasing of link window (diff) | |
| download | wireguard-linux-e045124e93995fe01e42ed530003ddba5d55db4f.tar.xz wireguard-linux-e045124e93995fe01e42ed530003ddba5d55db4f.zip | |
net: dsa: mt7530: fix tagged frames pass-through in VLAN-unaware mode
In VLAN-unaware mode, the Egress Tag (EG_TAG) field in Port VLAN
Control register must be set to Consistent to let tagged frames pass
through as is, otherwise their tags will be stripped.
Fixes: 83163f7dca56 ("net: dsa: mediatek: add VLAN support for MT7530")
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: René van Dorst <opensource@vdorst.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/dsa/mt7530.c | 18 | ||||
| -rw-r--r-- | drivers/net/dsa/mt7530.h | 7 |
2 files changed, 19 insertions, 6 deletions
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 84391c8a0e16..5c444cd722bd 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -773,8 +773,9 @@ mt7530_port_set_vlan_unaware(struct dsa_switch *ds, int port) */ mt7530_rmw(priv, MT7530_PCR_P(port), PCR_PORT_VLAN_MASK, MT7530_PORT_MATRIX_MODE); - mt7530_rmw(priv, MT7530_PVC_P(port), VLAN_ATTR_MASK, - VLAN_ATTR(MT7530_VLAN_TRANSPARENT)); + mt7530_rmw(priv, MT7530_PVC_P(port), VLAN_ATTR_MASK | PVC_EG_TAG_MASK, + VLAN_ATTR(MT7530_VLAN_TRANSPARENT) | + PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); for (i = 0; i < MT7530_NUM_PORTS; i++) { if (dsa_is_user_port(ds, i) && @@ -790,8 +791,8 @@ mt7530_port_set_vlan_unaware(struct dsa_switch *ds, int port) if (all_user_ports_removed) { mt7530_write(priv, MT7530_PCR_P(MT7530_CPU_PORT), PCR_MATRIX(dsa_user_ports(priv->ds))); - mt7530_write(priv, MT7530_PVC_P(MT7530_CPU_PORT), - PORT_SPEC_TAG); + mt7530_write(priv, MT7530_PVC_P(MT7530_CPU_PORT), PORT_SPEC_TAG + | PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); } } @@ -817,8 +818,9 @@ mt7530_port_set_vlan_aware(struct dsa_switch *ds, int port) /* Set the port as a user port which is to be able to recognize VID * from incoming packets before fetching entry within the VLAN table. */ - mt7530_rmw(priv, MT7530_PVC_P(port), VLAN_ATTR_MASK, - VLAN_ATTR(MT7530_VLAN_USER)); + mt7530_rmw(priv, MT7530_PVC_P(port), VLAN_ATTR_MASK | PVC_EG_TAG_MASK, + VLAN_ATTR(MT7530_VLAN_USER) | + PVC_EG_TAG(MT7530_VLAN_EG_DISABLED)); } static void @@ -1303,6 +1305,10 @@ mt7530_setup(struct dsa_switch *ds) mt7530_cpu_port_enable(priv, i); else mt7530_port_disable(ds, i); + + /* Enable consistent egress tag */ + mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK, + PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); } /* Setup port 5 */ diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h index 4aef6024441b..979bb6374678 100644 --- a/drivers/net/dsa/mt7530.h +++ b/drivers/net/dsa/mt7530.h @@ -172,9 +172,16 @@ enum mt7530_port_mode { /* Register for port vlan control */ #define MT7530_PVC_P(x) (0x2010 + ((x) * 0x100)) #define PORT_SPEC_TAG BIT(5) +#define PVC_EG_TAG(x) (((x) & 0x7) << 8) +#define PVC_EG_TAG_MASK PVC_EG_TAG(7) #define VLAN_ATTR(x) (((x) & 0x3) << 6) #define VLAN_ATTR_MASK VLAN_ATTR(3) +enum mt7530_vlan_port_eg_tag { + MT7530_VLAN_EG_DISABLED = 0, + MT7530_VLAN_EG_CONSISTENT = 1, +}; + enum mt7530_vlan_port_attr { MT7530_VLAN_USER = 0, MT7530_VLAN_TRANSPARENT = 3, |