The register autoneg can't be updated synchronously with flow control mode setting in the state of port start , so NIC statistics error occurs. AUTO_NEG Advt register should be updated by ixgbe_setup_fc() when enabling flow control. The patch fixes the issue.
Fixes: a524f550da6e ("net/ixgbe: fix flow control mode setting") Cc: sta...@dpdk.org Signed-off-by: Guinan Sun <guinanx....@intel.com> --- v2 changes: * Replaced mac.ops.setup_fc() with ixgbe_setup_fc() * Modified commit message. --- drivers/net/ixgbe/ixgbe_ethdev.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index a4e5c539d..f8a84c565 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -2543,6 +2543,8 @@ ixgbe_flow_ctrl_enable(struct rte_eth_dev *dev, struct ixgbe_hw *hw) int err; uint32_t mflcn; + ixgbe_setup_fc(hw); + err = ixgbe_fc_enable(hw); /* Not negotiated is not an error case */ -- 2.17.1