From: Akeem G Abodunrin Date: Thu, 25 Jul 2019 09:53:58 +0000 (-0700) Subject: ice: Don't clog kernel debug log with VF MDD events errors X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=e63a1dbdc7df4b6b48af920a86630c20a44340cf;p=openwrt%2Fstaging%2Fblogic.git ice: Don't clog kernel debug log with VF MDD events errors In case of MDD events on VF, don't clog kernel log with unlimited VF MDD events message "VF 0 has had 1018 MDD events since last boot" - limit events log message to 30, based on the observation in some experimentation with sending malicious packet once, and number of events reported before device stopped observing MDD events. Also removed defunct macro "ICE_DFLT_NUM_MDD_EVENTS_ALLOWED" for tracking number of MDD events allowed before disabling the interface... Signed-off-by: Akeem G Abodunrin Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 2c6b2bc4e30e..67cbebe1ff3f 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -1315,8 +1315,10 @@ static void ice_handle_mdd_event(struct ice_pf *pf) if (vf_mdd_detected) { vf->num_mdd_events++; - if (vf->num_mdd_events > 1) - dev_info(&pf->pdev->dev, "VF %d has had %llu MDD events since last boot\n", + if (vf->num_mdd_events && + vf->num_mdd_events <= ICE_MDD_EVENTS_THRESHOLD) + dev_info(&pf->pdev->dev, + "VF %d has had %llu MDD events since last boot, Admin might need to reload AVF driver with this number of events\n", i, vf->num_mdd_events); } } diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h index 4d94853f119a..13f45f37d75e 100644 --- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h +++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.h @@ -15,8 +15,8 @@ #define ICE_MAX_MACADDR_PER_VF 12 /* Malicious Driver Detection */ -#define ICE_DFLT_NUM_MDD_EVENTS_ALLOWED 3 #define ICE_DFLT_NUM_INVAL_MSGS_ALLOWED 10 +#define ICE_MDD_EVENTS_THRESHOLD 30 /* Static VF transaction/status register def */ #define VF_DEVICE_STATUS 0xAA