i40e: suspend scheduling during driver unload

We need to suspend scheduling or any pending service task during driver
unload process, so that new task will not be scheduled. This patch sets
the suspend flag bit during reload which avoids service task execution.

Change-ID: I017c57b5d6656564556e3c5387da671369a572ac
Signed-off-by: Pandi Kumar Maharajan <pandi.maharajan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 87325dbea42c5655261af25424553c7ab0981baf..9076b29755549f3722cd0461f1c2fde3b1df0757 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -11215,6 +11215,7 @@ static void i40e_remove(struct pci_dev *pdev)
        i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), 0);
 
        /* no more scheduling of any task */
+       set_bit(__I40E_SUSPENDED, &pf->state);
        set_bit(__I40E_DOWN, &pf->state);
        del_timer_sync(&pf->service_timer);
        cancel_work_sync(&pf->service_task);