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net: dsa: mv88e6xxx: Add tx fwd offload PVT on intermediate devices

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In a typical mv88e6xxx switch tree like this:

  CPU
   |    .----.
.--0--. | .--0--.
| sw0 | | | sw1 |
'-1-2-' | '-1-2-'
    '---'

If sw1p{1,2} are added to a bridge that sw0p1 is not a part of, sw0
still needs to add a crosschip PVT entry for the virtual DSA device
assigned to represent the bridge.

Fixes: ce5df6894a ("net: dsa: mv88e6xxx: map virtual bridges with forwarding offload in the PVT")
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tobias Waldekranz 2021-12-09 23:24:24 +01:00 committed by David S. Miller
parent 8c8b7aa7fb
commit e0068620e5
1 changed files with 3 additions and 1 deletions
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4
drivers/net/dsa/mv88e6xxx/chip.c
View File

@ -2531,6 +2531,7 @@ static int mv88e6xxx_crosschip_bridge_join(struct dsa_switch *ds,
mv88e6xxx_reg_lock(chip);
err = mv88e6xxx_pvt_map(chip, sw_index, port);
err = err ? : mv88e6xxx_map_virtual_bridge_to_pvt(ds, bridge.num);
mv88e6xxx_reg_unlock(chip);
return err;
@ -2546,7 +2547,8 @@ static void mv88e6xxx_crosschip_bridge_leave(struct dsa_switch *ds,
return;
mv88e6xxx_reg_lock(chip);
if (mv88e6xxx_pvt_map(chip, sw_index, port))
if (mv88e6xxx_pvt_map(chip, sw_index, port) ||
mv88e6xxx_map_virtual_bridge_to_pvt(ds, bridge.num))
dev_err(ds->dev, "failed to remap cross-chip Port VLAN\n");
mv88e6xxx_reg_unlock(chip);
}