net/mlx5: Introduce new device index wrapper

Downstream patches.
Signed-off-by: Rongwei Liu <rongweil@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/en/devlink.c

@@ -24,7 +24,7 @@ int mlx5e_devlink_port_register(struct mlx5e_priv *priv)
 
 	if (mlx5_core_is_pf(priv->mdev)) {
 		attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
-		attrs.phys.port_number = PCI_FUNC(priv->mdev->pdev->devfn);
+		attrs.phys.port_number = mlx5_get_dev_index(priv->mdev);
 		if (MLX5_ESWITCH_MANAGER(priv->mdev)) {
 			mlx5e_devlink_get_port_parent_id(priv->mdev, &ppid);
 			memcpy(attrs.switch_id.id, ppid.id, ppid.id_len);

drivers/net/ethernet/mellanox/mlx5/core/esw/devlink_port.c

@@ -36,7 +36,7 @@ static struct devlink_port *mlx5_esw_dl_port_alloc(struct mlx5_eswitch *esw, u16
 		return NULL;
 
 	mlx5_esw_get_port_parent_id(dev, &ppid);
-	pfnum = PCI_FUNC(dev->pdev->devfn);
+	pfnum = mlx5_get_dev_index(dev);
 	external = mlx5_core_is_ecpf_esw_manager(dev);
 	if (external)
 		controller_num = dev->priv.eswitch->offloads.host_number + 1;
@@ -149,7 +149,7 @@ int mlx5_esw_devlink_sf_port_register(struct mlx5_eswitch *esw, struct devlink_p
 	if (IS_ERR(vport))
 		return PTR_ERR(vport);
 
-	pfnum = PCI_FUNC(dev->pdev->devfn);
+	pfnum = mlx5_get_dev_index(dev);
 	mlx5_esw_get_port_parent_id(dev, &ppid);
 	memcpy(dl_port->attrs.switch_id.id, &ppid.id[0], ppid.id_len);
 	dl_port->attrs.switch_id.id_len = ppid.id_len;

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c

@@ -2798,7 +2798,7 @@ u32 mlx5_esw_match_metadata_alloc(struct mlx5_eswitch *esw)
 	int id;
 
 	/* Only 4 bits of pf_num */
-	pf_num = PCI_FUNC(esw->dev->pdev->devfn);
+	pf_num = mlx5_get_dev_index(esw->dev);
 	if (pf_num > max_pf_num)
 		return 0;
 

drivers/net/ethernet/mellanox/mlx5/core/lag.c

@@ -688,7 +688,7 @@ static void mlx5_ldev_add_netdev(struct mlx5_lag *ldev,
 				 struct mlx5_core_dev *dev,
 				 struct net_device *netdev)
 {
-	unsigned int fn = PCI_FUNC(dev->pdev->devfn);
+	unsigned int fn = mlx5_get_dev_index(dev);
 
 	if (fn >= MLX5_MAX_PORTS)
 		return;
@@ -718,7 +718,7 @@ static void mlx5_ldev_remove_netdev(struct mlx5_lag *ldev,
 static void mlx5_ldev_add_mdev(struct mlx5_lag *ldev,
 			       struct mlx5_core_dev *dev)
 {
-	unsigned int fn = PCI_FUNC(dev->pdev->devfn);
+	unsigned int fn = mlx5_get_dev_index(dev);
 
 	if (fn >= MLX5_MAX_PORTS)
 		return;

drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c

@@ -323,7 +323,7 @@ mlx5_sf_new_check_attr(struct mlx5_core_dev *dev, const struct devlink_port_new_
 		NL_SET_ERR_MSG_MOD(extack, "External controller is unsupported");
 		return -EOPNOTSUPP;
 	}
-	if (new_attr->pfnum != PCI_FUNC(dev->pdev->devfn)) {
+	if (new_attr->pfnum != mlx5_get_dev_index(dev)) {
 		NL_SET_ERR_MSG_MOD(extack, "Invalid pfnum supplied");
 		return -EOPNOTSUPP;
 	}

include/linux/mlx5/driver.h

@@ -1243,6 +1243,11 @@ static inline int mlx5_core_native_port_num(struct mlx5_core_dev *dev)
 	return MLX5_CAP_GEN(dev, native_port_num);
 }
 
+static inline int mlx5_get_dev_index(struct mlx5_core_dev *dev)
+{
+	return PCI_FUNC(dev->pdev->devfn);
+}
+
 enum {
 	MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
 };