net/mlx5: Rename and move mlx5_esw_query_vport_vhca_id

Rename mlx5_esw_query_vport_vhca_id to mlx5_vport_get_vhca_id and move
it to vport file. Also, add function declaration to mlx5_core header
file. This better represents the function's usage and allows for it to
be called from other parts of the mlx5_core driver.

Signed-off-by: Akiva Goldberger <[e-mail]>
Signed-off-by: Tariq Toukan <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

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

···
 }
 EXPORT_SYMBOL(mlx5_eswitch_get_vport_metadata_for_match);
 
-static int mlx5_esw_query_vport_vhca_id(struct mlx5_eswitch *esw, u16 vport_num, u16 *vhca_id)
-{
-	int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
-	void *query_ctx;
-	void *hca_caps;
-	int err;
-
-	*vhca_id = 0;
-
-	query_ctx = kzalloc(query_out_sz, GFP_KERNEL);
-	if (!query_ctx)
-		return -ENOMEM;
-
-	err = mlx5_vport_get_other_func_general_cap(esw->dev, vport_num, query_ctx);
-	if (err)
-		goto out_free;
-
-	hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability);
-	*vhca_id = MLX5_GET(cmd_hca_cap, hca_caps, vhca_id);
-
-out_free:
-	kfree(query_ctx);
-	return err;
-}
-
 int mlx5_esw_vport_vhca_id_set(struct mlx5_eswitch *esw, u16 vport_num)
 {
 	u16 *old_entry, *vhca_map_entry, vhca_id;
 	int err;
 
-	err = mlx5_esw_query_vport_vhca_id(esw, vport_num, &vhca_id);
+	err = mlx5_vport_get_vhca_id(esw->dev, vport_num, &vhca_id);
 	if (err) {
 		esw_warn(esw->dev, "Getting vhca_id for vport failed (vport=%u,err=%d)\n",
 			 vport_num, err);
···
 	u16 *vhca_map_entry, vhca_id;
 	int err;
 
-	err = mlx5_esw_query_vport_vhca_id(esw, vport_num, &vhca_id);
+	err = mlx5_vport_get_vhca_id(esw->dev, vport_num, &vhca_id);
 	if (err)
 		esw_warn(esw->dev, "Getting vhca_id for vport failed (vport=%hu,err=%d)\n",
 			 vport_num, err);

drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h

···
 #define mlx5_vport_get_other_func_general_cap(dev, vport, out)		\
 	mlx5_vport_get_other_func_cap(dev, vport, out, MLX5_CAP_GENERAL)
 
+int mlx5_vport_get_vhca_id(struct mlx5_core_dev *dev, u16 vport, u16 *vhca_id);
+
 static inline u32 mlx5_sriov_get_vf_total_msix(struct pci_dev *pdev)
 {
 	struct mlx5_core_dev *dev = pci_get_drvdata(pdev);

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

···
 }
 EXPORT_SYMBOL_GPL(mlx5_vport_get_other_func_cap);
 
+int mlx5_vport_get_vhca_id(struct mlx5_core_dev *dev, u16 vport, u16 *vhca_id)
+{
+	int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
+	void *query_ctx;
+	void *hca_caps;
+	int err;
+
+	*vhca_id = 0;
+
+	query_ctx = kzalloc(query_out_sz, GFP_KERNEL);
+	if (!query_ctx)
+		return -ENOMEM;
+
+	err = mlx5_vport_get_other_func_general_cap(dev, vport, query_ctx);
+	if (err)
+		goto out_free;
+
+	hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability);
+	*vhca_id = MLX5_GET(cmd_hca_cap, hca_caps, vhca_id);
+
+out_free:
+	kfree(query_ctx);
+	return err;
+}
+
 int mlx5_vport_set_other_func_cap(struct mlx5_core_dev *dev, const void *hca_cap,
 				  u16 vport, u16 opmod)
 {