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net/mlx5: E-Switch, Read PF mac address

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External controller PF's MAC address is not read from the device during
vport setup. Fail to read this results in showing all zeros to user
while the factory programmed MAC is a valid value.

$ devlink port show eth1 -jp
{
    "port": {
        "pci/0000:03:00.0/196608": {
            "type": "eth",
            "netdev": "eth1",
            "flavour": "pcipf",
            "controller": 1,
            "pfnum": 0,
            "splittable": false,
            "function": {
                "hw_addr": "00:00:00:00:00:00"
            }
        }
    }
}

Hence, read it when enabling a vport.

After the fix,

$ devlink port show eth1 -jp
{
    "port": {
        "pci/0000:03:00.0/196608": {
            "type": "eth",
            "netdev": "eth1",
            "flavour": "pcipf",
            "controller": 1,
            "pfnum": 0,
            "splittable": false,
            "function": {
                "hw_addr": "98:03:9b:a0:60:11"
            }
        }
    }
}

Fixes: f099fde16d ("net/mlx5: E-switch, Support querying port function mac address")
Signed-off-by: Bodong Wang <bodong@nvidia.com>
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Alaa Hleihel <alaa@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Parav Pandit 2021-06-08 19:14:08 +03:00 committed by Saeed Mahameed
parent 2058cc9c80
commit bbc8222dc4
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
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@ -1054,6 +1054,12 @@ int mlx5_esw_vport_enable(struct mlx5_eswitch *esw, u16 vport_num,
goto err_vhca_mapping;
}
/* External controller host PF has factory programmed MAC.
* Read it from the device.
*/
if (mlx5_core_is_ecpf(esw->dev) && vport_num == MLX5_VPORT_PF)
mlx5_query_nic_vport_mac_address(esw->dev, vport_num, true, vport->info.mac);
esw_vport_change_handle_locked(vport);
esw->enabled_vports++;