linux-kernel - Re: [PATCH net-next v3 3/5] net: dsa: Add support for offloaded locked port flag

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Date:   Sat, 19 Feb 2022 11:56:49 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     Hans Schultz <schultz.hans@...il.com>
Cc:     davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org,
        Hans Schultz <schultz.hans+netdev@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <nikolay@...dia.com>,
        Shuah Khan <shuah@...nel.org>,
        Stephen Suryaputra <ssuryaextr@...il.com>,
        David Ahern <dsahern@...nel.org>,
        Ido Schimmel <idosch@...dia.com>,
        Petr Machata <petrm@...dia.com>,
        Amit Cohen <amcohen@...dia.com>,
        Po-Hsu Lin <po-hsu.lin@...onical.com>,
        Baowen Zheng <baowen.zheng@...igine.com>,
        linux-kernel@...r.kernel.org, bridge@...ts.linux-foundation.org,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH net-next v3 3/5] net: dsa: Add support for offloaded
 locked port flag

On Fri, Feb 18, 2022 at 04:51:46PM +0100, Hans Schultz wrote:
> Among the switchcores that support this feature is the Marvell
> mv88e6xxx family.
> 
> Signed-off-by: Hans Schultz <schultz.hans+netdev@...il.com>
> ---

Reviewed-by: Vladimir Oltean <olteanv@...il.com>

Although this doesn't "add support for offloaded locked ports", that
passes right through with no DSA-level filtering, from
SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS to dsa_port_bridge_flags(),
to ds->ops->port_bridge_flags().

Rather, a clearer description of what this does is:

net: dsa: include BR_PORT_LOCKED in the list of synced brport flags

Make sure the DSA switch driver gets notified of changes to the
BR_PORT_LOCKED flag as well, for the case when a DSA port joins or
leaves a LAG that is a bridge port.