net/mlx5e: Fix pfnum in devlink port attribute

Cited patch missed to extract PCI pf number accurately for PF and VF
port flavour. It considered PCI device + function number.
Due to this, device having non zero device number shown large pfnum.

Hence, use only PCI function number; to avoid similar errors, derive
pfnum one time for all port flavours.

Fixes: f60f315d339e ("net/mlx5e: Register devlink ports for physical link, PCI PF, VFs")
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 2a0243e..55457f2 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -2050,29 +2050,30 @@ static int register_devlink_port(struct mlx5_core_dev *dev,
        struct mlx5_eswitch_rep *rep = rpriv->rep;
        struct netdev_phys_item_id ppid = {};
        unsigned int dl_port_index = 0;
+       u16 pfnum;
 
        if (!is_devlink_port_supported(dev, rpriv))
                return 0;
 
        mlx5e_rep_get_port_parent_id(rpriv->netdev, &ppid);
+       pfnum = PCI_FUNC(dev->pdev->devfn);
 
        if (rep->vport == MLX5_VPORT_UPLINK) {
                devlink_port_attrs_set(&rpriv->dl_port,
                                       DEVLINK_PORT_FLAVOUR_PHYSICAL,
-                                      PCI_FUNC(dev->pdev->devfn), false, 0,
+                                      pfnum, false, 0,
                                       &ppid.id[0], ppid.id_len);
                dl_port_index = vport_to_devlink_port_index(dev, rep->vport);
        } else if (rep->vport == MLX5_VPORT_PF) {
                devlink_port_attrs_pci_pf_set(&rpriv->dl_port,
                                              &ppid.id[0], ppid.id_len,
-                                             dev->pdev->devfn);
+                                             pfnum);
                dl_port_index = rep->vport;
        } else if (mlx5_eswitch_is_vf_vport(dev->priv.eswitch,
                                            rpriv->rep->vport)) {
                devlink_port_attrs_pci_vf_set(&rpriv->dl_port,
                                              &ppid.id[0], ppid.id_len,
-                                             dev->pdev->devfn,
-                                             rep->vport - 1);
+                                             pfnum, rep->vport - 1);
                dl_port_index = vport_to_devlink_port_index(dev, rep->vport);
        }