ice: move devlink port creation/deletion

Commit a286ba7 ("ice: reorder PF/representor devlink
port register/unregister flows") moved the code to create
and destroy the devlink PF port. This was fine, but created
a corner case issue in the case of ice_register_netdev()
failing. In that case, the driver would end up calling
ice_devlink_destroy_pf_port() twice.

Additionally, it makes no sense to tie creation of the devlink
PF port to the creation of the netdev so separate out the
code to create/destroy the devlink PF port from the netdev
code. This makes it a cleaner interface.

Fixes: a286ba7 ("ice: reorder PF/representor devlink port register/unregister flows")
Signed-off-by: Paul M Stillwell Jr <[email protected]>
Tested-by: Gurucharan G <[email protected]> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <[email protected]>
Reviewed-by: Leon Romanovsky <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: pmstillw

drivers/net/ethernet/intel/ice/ice_lib.c

@@ -3235,9 +3235,6 @@ int ice_vsi_release(struct ice_vsi *vsi)
 		}
 	}
 
-	if (vsi->type == ICE_VSI_PF)
-		ice_devlink_destroy_pf_port(pf);
-
 	if (vsi->type == ICE_VSI_VF &&
 	    vsi->agg_node && vsi->agg_node->valid)
 		vsi->agg_node->num_vsis--;

drivers/net/ethernet/intel/ice/ice_main.c

@@ -4590,7 +4590,7 @@ static void ice_print_wake_reason(struct ice_pf *pf)
 }
 
 /**
- * ice_register_netdev - register netdev and devlink port
+ * ice_register_netdev - register netdev
  * @pf: pointer to the PF struct
  */
 static int ice_register_netdev(struct ice_pf *pf)
@@ -4602,11 +4602,6 @@ static int ice_register_netdev(struct ice_pf *pf)
 	if (!vsi || !vsi->netdev)
 		return -EIO;
 
-	err = ice_devlink_create_pf_port(pf);
-	if (err)
-		goto err_devlink_create;
-
-	SET_NETDEV_DEVLINK_PORT(vsi->netdev, &pf->devlink_port);
 	err = register_netdev(vsi->netdev);
 	if (err)
 		goto err_register_netdev;
@@ -4617,8 +4612,6 @@ static int ice_register_netdev(struct ice_pf *pf)
 
 	return 0;
 err_register_netdev:
-	ice_devlink_destroy_pf_port(pf);
-err_devlink_create:
 	free_netdev(vsi->netdev);
 	vsi->netdev = NULL;
 	clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state);
@@ -4636,6 +4629,7 @@ static int
 ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
 {
 	struct device *dev = &pdev->dev;
+	struct ice_vsi *vsi;
 	struct ice_pf *pf;
 	struct ice_hw *hw;
 	int i, err;
@@ -4918,6 +4912,18 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
 	pcie_print_link_status(pf->pdev);
 
 probe_done:
+	err = ice_devlink_create_pf_port(pf);
+	if (err)
+		goto err_create_pf_port;
+
+	vsi = ice_get_main_vsi(pf);
+	if (!vsi || !vsi->netdev) {
+		err = -EINVAL;
+		goto err_netdev_reg;
+	}
+
+	SET_NETDEV_DEVLINK_PORT(vsi->netdev, &pf->devlink_port);
+
 	err = ice_register_netdev(pf);
 	if (err)
 		goto err_netdev_reg;
@@ -4955,6 +4961,8 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
 err_devlink_reg_param:
 	ice_devlink_unregister_params(pf);
 err_netdev_reg:
+	ice_devlink_destroy_pf_port(pf);
+err_create_pf_port:
 err_send_version_unroll:
 	ice_vsi_release_all(pf);
 err_alloc_sw_unroll:
@@ -5083,6 +5091,7 @@ static void ice_remove(struct pci_dev *pdev)
 	ice_setup_mc_magic_wake(pf);
 	ice_vsi_release_all(pf);
 	mutex_destroy(&(&pf->hw)->fdir_fltr_lock);
+	ice_devlink_destroy_pf_port(pf);
 	ice_set_wake(pf);
 	ice_free_irq_msix_misc(pf);
 	ice_for_each_vsi(pf, i) {