Commit 321421b5 authored by Surabhi Boob's avatar Surabhi Boob Committed by Tony Nguyen

iavf: Fix for the false positive ASQ/ARQ errors while issuing VF reset

While issuing VF Reset from the guest OS, the VF driver prints
logs about critical / Overflow error detection. This is not an
actual error since the VF_MBX_ARQLEN register is set to all FF's
for a short period of time and the VF would catch the bits set if
it was reading the register during that spike of time.
This patch introduces an additional check to ignore this condition
since the VF is in reset.

Fixes: 19b73d8e ("i40evf: Add additional check for reset")
Signed-off-by: default avatarSurabhi Boob <surabhi.boob@intel.com>
Tested-by: default avatarTony Brelinski <tony.brelinski@intel.com>
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
parent 131b0edc
......@@ -2409,7 +2409,7 @@ static void iavf_adminq_task(struct work_struct *work)
/* check for error indications */
val = rd32(hw, hw->aq.arq.len);
if (val == 0xdeadbeef) /* indicates device in reset */
if (val == 0xdeadbeef || val == 0xffffffff) /* device in reset */
goto freedom;
oldval = val;
if (val & IAVF_VF_ARQLEN1_ARQVFE_MASK) {
......
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