net/mlx4: Use devl_ API for devlink region create / destroy

Use devl_ API to call devl_region_create() and devl_region_destroy()
instead of devlink_region_create() and devlink_region_destroy().
Add devlink instance lock in mlx4 driver paths to these functions.

This will be used by the downstream patch to invoke mlx4 devlink reload
callbacks with devlink lock held.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/mellanox/mlx4/crdump.c

@@ -226,10 +226,10 @@ int mlx4_crdump_init(struct mlx4_dev *dev)
 
 	/* Create cr-space region */
 	crdump->region_crspace =
-		devlink_region_create(devlink,
-				      &region_cr_space_ops,
-				      MAX_NUM_OF_DUMPS_TO_STORE,
-				      pci_resource_len(pdev, 0));
+		devl_region_create(devlink,
+				   &region_cr_space_ops,
+				   MAX_NUM_OF_DUMPS_TO_STORE,
+				   pci_resource_len(pdev, 0));
 	if (IS_ERR(crdump->region_crspace))
 		mlx4_warn(dev, "crdump: create devlink region %s err %ld\n",
 			  region_cr_space_str,
@@ -237,10 +237,10 @@ int mlx4_crdump_init(struct mlx4_dev *dev)
 
 	/* Create fw-health region */
 	crdump->region_fw_health =
-		devlink_region_create(devlink,
-				      &region_fw_health_ops,
-				      MAX_NUM_OF_DUMPS_TO_STORE,
-				      HEALTH_BUFFER_SIZE);
+		devl_region_create(devlink,
+				   &region_fw_health_ops,
+				   MAX_NUM_OF_DUMPS_TO_STORE,
+				   HEALTH_BUFFER_SIZE);
 	if (IS_ERR(crdump->region_fw_health))
 		mlx4_warn(dev, "crdump: create devlink region %s err %ld\n",
 			  region_fw_health_str,
@@ -253,6 +253,6 @@ void mlx4_crdump_end(struct mlx4_dev *dev)
 {
 	struct mlx4_fw_crdump *crdump = &dev->persist->crdump;
 
-	devlink_region_destroy(crdump->region_fw_health);
-	devlink_region_destroy(crdump->region_crspace);
+	devl_region_destroy(crdump->region_fw_health);
+	devl_region_destroy(crdump->region_crspace);
 }

drivers/net/ethernet/mellanox/mlx4/main.c

@@ -3732,6 +3732,7 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data,
 	int prb_vf[MLX4_MAX_PORTS + 1] = {0, 0, 0};
 	const int param_map[MLX4_MAX_PORTS + 1][MLX4_MAX_PORTS + 1] = {
 		{2, 0, 0}, {0, 1, 2}, {0, 1, 2} };
+	struct devlink *devlink = priv_to_devlink(priv);
 	unsigned total_vfs = 0;
 	unsigned int i;
 
@@ -3844,7 +3845,9 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data,
 		}
 	}
 
+	devl_lock(devlink);
 	err = mlx4_crdump_init(&priv->dev);
+	devl_unlock(devlink);
 	if (err)
 		goto err_release_regions;
 
@@ -3862,7 +3865,9 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data,
 	mlx4_catas_end(&priv->dev);
 
 err_crdump:
+	devl_lock(devlink);
 	mlx4_crdump_end(&priv->dev);
+	devl_unlock(devlink);
 
 err_release_regions:
 	pci_release_regions(pdev);
@@ -4161,7 +4166,9 @@ static void mlx4_remove_one(struct pci_dev *pdev)
 	else
 		mlx4_info(dev, "%s: interface is down\n", __func__);
 	mlx4_catas_end(dev);
+	devl_lock(devlink);
 	mlx4_crdump_end(dev);
+	devl_unlock(devlink);
 	if (dev->flags & MLX4_FLAG_SRIOV && !active_vfs) {
 		mlx4_warn(dev, "Disabling SR-IOV\n");
 		pci_disable_sriov(pdev);