ice: Fix couple of issues in ice_vsi_release

Currently the driver is calling ice_napi_del() and then
unregister_netdev(). The call to unregister_netdev() will result in a
call to ice_stop() and then ice_vsi_close(). This is where we call
napi_disable() for all the MSI-X vectors. This flow is reversed so make
the changes to ensure napi_disable() happens prior to napi_del().

Before calling napi_del() and free_netdev() make sure
unregister_netdev() was called. This is done by making sure the
__ICE_DOWN bit is set in the vsi->state for the interested VSI.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 13 insertions, 11 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index fbf1eba0cc2a..f14fa51cc704 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -2754,19 +2754,14 @@ int ice_vsi_release(struct ice_vsi *vsi)
 
 	if (vsi->type == ICE_VSI_VF)
 		vf = &pf->vf[vsi->vf_id];
-	/* do not unregister and free netdevs while driver is in the reset
-	 * recovery pending state. Since reset/rebuild happens through PF
-	 * service task workqueue, its not a good idea to unregister netdev
-	 * that is associated to the PF that is running the work queue items
-	 * currently. This is done to avoid check_flush_dependency() warning
-	 * on this wq
+	/* do not unregister while driver is in the reset recovery pending
+	 * state. Since reset/rebuild happens through PF service task workqueue,
+	 * it's not a good idea to unregister netdev that is associated to the
+	 * PF that is running the work queue items currently. This is done to
+	 * avoid check_flush_dependency() warning on this wq
 	 */
-	if (vsi->netdev && !ice_is_reset_in_progress(pf->state)) {
-		ice_napi_del(vsi);
+	if (vsi->netdev && !ice_is_reset_in_progress(pf->state))
 		unregister_netdev(vsi->netdev);
-		free_netdev(vsi->netdev);
-		vsi->netdev = NULL;
-	}
 
 	if (test_bit(ICE_FLAG_RSS_ENA, pf->flags))
 		ice_rss_clean(vsi);
@@ -2799,6 +2794,13 @@ int ice_vsi_release(struct ice_vsi *vsi)
 	ice_rm_vsi_lan_cfg(vsi->port_info, vsi->idx);
 	ice_vsi_delete(vsi);
 	ice_vsi_free_q_vectors(vsi);
+
+	/* make sure unregister_netdev() was called by checking __ICE_DOWN */
+	if (vsi->netdev && test_bit(__ICE_DOWN, vsi->state)) {
+		free_netdev(vsi->netdev);
+		vsi->netdev = NULL;
+	}
+
 	ice_vsi_clear_rings(vsi);
 
 	ice_vsi_put_qs(vsi);