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| author |  Vladimir Oltean <vladimir.oltean@nxp.com>
| 2023-09-22 15:31:05 +0200 |
|---|---|---|
| committer |  Paolo Abeni <pabeni@redhat.com>
| 2023-10-03 13:51:02 +0200 |
| commit | 6715042cd112e1db971583e2eed89b90d6f9b139 (patch) | |
| tree | c3efbceff7412366eb5ebb17c9cbaaf782ffda30 /net/dsa | |
| parent | net: dsa: propagate extack to ds->ops->port_hsr_join() (diff) | |
| download | linux-6715042cd112e1db971583e2eed89b90d6f9b139.tar.gz linux-6715042cd112e1db971583e2eed89b90d6f9b139.tar.bz2 linux-6715042cd112e1db971583e2eed89b90d6f9b139.zip | |
net: dsa: notify drivers of MAC address changes on user ports
In some cases, drivers may need to veto the changing of a MAC address on
a user port. Such is the case with KSZ9477 when it offloads a HSR device,
because it programs the MAC address of multiple ports to a shared
hardware register. Those ports need to have equal MAC addresses for the
lifetime of the HSR offload.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/dsa')
| -rw-r--r-- | net/dsa/slave.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/dsa/slave.c b/net/dsa/slave.c index 2b3d89b77121..4c3e502d7e16 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -457,6 +457,13 @@ static int dsa_slave_set_mac_address(struct net_device *dev, void *a) if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; + if (ds->ops->port_set_mac_address) { + err = ds->ops->port_set_mac_address(ds, dp->index, + addr->sa_data); + if (err) + return err; + } + /* If the port is down, the address isn't synced yet to hardware or * to the DSA master, so there is nothing to change. */ |