ixgbe: only check pfc bits in hang logic if pfc is enabled

Only check pfc bits in hang logic if PFC is enabled.  Previously,
if DCB was enabled but PFC was disabled the incorrect pause
bits would be checked.

Signed-off-by: John Fastabend <[email protected]>
Acked-by: Don Skidmore <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index d571d101de08fb4c183af77cb9b64d10904d10a7..b2af2f67f604c2d24018a2e9af8307e5e33d5828 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -642,7 +642,7 @@ static inline bool ixgbe_tx_xon_state(struct ixgbe_adapter *adapter,
        u32 txoff = IXGBE_TFCS_TXOFF;
 
 #ifdef CONFIG_IXGBE_DCB
-       if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
+       if (adapter->dcb_cfg.pfc_mode_enable) {
                int tc;
                int reg_idx = tx_ring->reg_idx;
                int dcb_i = adapter->ring_feature[RING_F_DCB].indices;