i40e: close client on remove and shutdown

When the driver is removed or shut down, close any attached clients
(i.e. i40iw). This prevents a panic seen sometimes on forced driver
removal or system shutdown when iWarp is running.

Change-ID: I4f6161e5a73ffbb2fd5883567b007310302bfcb5
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Orabug: 26785018
(cherry picked from commit 921c467c6bf8f6fe5cd139b0535ad42b952330f0)
Signed-off-by: Jack Vogel <jack.vogel@oracle.com>
Reviewed-by: Kyle Fortin <kyle.fortin@oracle.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 6072622e067fceb8df538d746a4cb0d20c3f7572..4b0d82f521f3e8bce15739163c912ff408dd135b 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -11566,6 +11566,11 @@ static void i40e_remove(struct pci_dev *pdev)
        if (pf->service_task.func)
                cancel_work_sync(&pf->service_task);
 
+       /* Client close must be called explicitly here because the timer
+        * has been stopped.
+        */
+       i40e_notify_client_of_netdev_close(pf->vsi[pf->lan_vsi], false);
+
        if (pf->flags & I40E_FLAG_SRIOV_ENABLED) {
                i40e_free_vfs(pf);
                pf->flags &= ~I40E_FLAG_SRIOV_ENABLED;
@@ -11807,6 +11812,11 @@ static void i40e_shutdown(struct pci_dev *pdev)
        cancel_work_sync(&pf->service_task);
        i40e_fdir_teardown(pf);
 
+       /* Client close must be called explicitly here because the timer
+        * has been stopped.
+        */
+       i40e_notify_client_of_netdev_close(pf->vsi[pf->lan_vsi], false);
+
        if (pf->wol_en && (pf->flags & I40E_FLAG_WOL_MC_MAGIC_PKT_WAKE))
                i40e_enable_mc_magic_wake(pf);