From: Alexander Duyck Date: Tue, 14 Nov 2017 12:00:45 +0000 (-0500) Subject: i40evf: Clean-up flags for promisc mode to avoid high polling rate X-Git-Tag: v4.19~1702^2~181^2~3 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f23735aa45f3a5cb301342a4f51be69f22d4aa85;p=platform%2Fkernel%2Flinux-rpi.git i40evf: Clean-up flags for promisc mode to avoid high polling rate If you enabled and disabled promiscuous mode on a VF you could easily put it into a state where it would start firing interrupts on all queues at a rate of 50+ interrupts per second even though there was no traffic present. The issue seems to have been a stray admin queue feature flag set that was leaving us in a high polling rate for the adminq task. Signed-off-by: Alexander Duyck Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c index 2719a05..feb95b6 100644 --- a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c +++ b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c @@ -739,8 +739,10 @@ void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags) } if (!flags) { - adapter->flags &= ~I40EVF_FLAG_PROMISC_ON; - adapter->aq_required &= ~I40EVF_FLAG_AQ_RELEASE_PROMISC; + adapter->flags &= ~(I40EVF_FLAG_PROMISC_ON | + I40EVF_FLAG_ALLMULTI_ON); + adapter->aq_required &= ~(I40EVF_FLAG_AQ_RELEASE_PROMISC | + I40EVF_FLAG_AQ_RELEASE_ALLMULTI); dev_info(&adapter->pdev->dev, "Leaving promiscuous mode\n"); }