In i40e FDIR PMD code for checking programming status, when the action of add FDIR filter is ok, i40e NIC will not write back to programming status descriptor, so if PMD code check DD is not done after period of time dealy, it means the add or remove filter action is ok. It only write back descriptor when fail.
Fixes: 7546dc4a1331 ("net/i40e: fix FDIR check programming status error") Signed-off-by: Wei Zhao <wei.zh...@intel.com> --- drivers/net/i40e/i40e_fdir.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c index 2b299c7..d41601a 100644 --- a/drivers/net/i40e/i40e_fdir.c +++ b/drivers/net/i40e/i40e_fdir.c @@ -1360,8 +1360,6 @@ i40e_check_fdir_programming_status(struct i40e_rx_queue *rxq) I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1); else I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->rx_tail - 1); - } else { - ret = -1; } return ret; -- 2.7.5