nfp: ethtool: fix the display error of `ethtool -m DEVNAME`

The port flag isn't set to `NFP_PORT_CHANGED` when using
`ethtool -m DEVNAME` before, so the port state (e.g. interface)
cannot be updated. Therefore, it caused that `ethtool -m DEVNAME`
sometimes cannot read the correct information.

E.g. `ethtool -m DEVNAME` cannot work when load driver before plug
in optical module, as the port interface is still NONE without port
update.

Now update the port state before sending info to NIC to ensure that
port interface is correct (latest state).

Fixes: dceea26a70df ("nfp: implement ethtool get module EEPROM")
Reviewed-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Yu Xiao <yu.xiao@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20220802093355.69065-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
index c922dfab80801862a6b17d34c3f14692deff7ea1..eeb1455a4e5dbb05069aba8c409cb9ecd3220c5d 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
@@ -1395,6 +1395,8 @@ nfp_port_get_module_info(struct net_device *netdev,
        u8 data;
 
        port = nfp_port_from_netdev(netdev);
+       /* update port state to get latest interface */
+       set_bit(NFP_PORT_CHANGED, &port->flags);
        eth_port = nfp_port_get_eth_port(port);
        if (!eth_port)
                return -EOPNOTSUPP;