On Wed, Dec 16, 2020 at 05:00:53PM +0100, Tobias Waldekranz wrote:
> In a situation where a standalone port is indirectly attached to a
> bridge (e.g. via a LAG) which is not offloaded, do not offload any
> port attributes either. The port should behave as a standard NIC.
>
> Previously, on mv88e6xxx, this meant that in the following setup:
>
> br0
> /
> team0
> / \
> swp0 swp1
>
> If vlan filtering was enabled on br0, swp0's and swp1's QMode was set
> to "secure". This caused all untagged packets to be dropped, as their
> default VID (0) was not loaded into the VTU.
>
> Signed-off-by: Tobias Waldekranz <tob...@waldekranz.com>
> ---
> net/dsa/slave.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/net/dsa/slave.c b/net/dsa/slave.c
> index 4a0498bf6c65..faae8dcc0849 100644
> --- a/net/dsa/slave.c
> +++ b/net/dsa/slave.c
> @@ -274,6 +274,9 @@ static int dsa_slave_port_attr_set(struct net_device *dev,
> struct dsa_port *dp = dsa_slave_to_port(dev);
> int ret;
>
> + if (attr->orig_dev != dev)
> + return -EOPNOTSUPP;
> +
Should this not be:
if (!dsa_port_offloads_netdev(dp, attr->orig_dev))
return -EOPNOTSUPP;
?
> switch (attr->id) {
> case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
> ret = dsa_port_set_state(dp, attr->u.stp_state, trans);
> --
> 2.17.1
>
