korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-26 20:44:32 +08:00
Code Issues Packages Projects Releases Wiki Activity

i40e: Fix for allowing too many MDD events on VF

Browse Source 
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: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Carolyn Wyborny 2019-02-28 09:52:47 -08:00 committed by Jeff Kirsher
parent 8ef988b914
commit a7da7f1626
1 changed files with 3 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/ethernet/intel/i40e/i40e_main.c
View File

@ -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);