i40e: Fix for allowing too many MDD events on VF

This patch changes the driver behavior when detecting a VF MDD event.
It now disables the VF after one event, which indicates a hw detected
problem in the VF.  Before this change, the PF would allow a couple of
events before doing the reset.
Signed-off-by: NCarolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/i40e/i40e_main.c

@@ -9767,6 +9767,9 @@ static void i40e_handle_mdd_event(struct i40e_pf *pf)
 			vf->num_mdd_events++;
 			dev_info(&pf->pdev->dev, "TX driver issue detected on VF %d\n",
 				 i);
+			dev_info(&pf->pdev->dev,
+				 "Use PF Control I/F to re-enable the VF\n");
+			set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
 		}
 
 		reg = rd32(hw, I40E_VP_MDET_RX(i));
@@ -9775,11 +9778,6 @@ static void i40e_handle_mdd_event(struct i40e_pf *pf)
 			vf->num_mdd_events++;
 			dev_info(&pf->pdev->dev, "RX driver issue detected on VF %d\n",
 				 i);
-		}
-
-		if (vf->num_mdd_events > I40E_DEFAULT_NUM_MDD_EVENTS_ALLOWED) {
-			dev_info(&pf->pdev->dev,
-				 "Too many MDD events on VF %d, disabled\n", i);
 			dev_info(&pf->pdev->dev,
 				 "Use PF Control I/F to re-enable the VF\n");
 			set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);