net/ixgbe: fix busy wait during checking link status

If we haven't set wait_to_complete, there is no need to busy wait
until we have a link status.  Applications, like bonding, use the
wait_to_complete flag to indicate that they will be doing their own
busy wait and will likely be polling again shortly.

Fixes: dc66e5fd01b9 ("net/ixgbe: improve link state check on VF")
Cc: stable@dpdk.org
Signed-off-by: Chas Williams <chas3@att.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index fbc048f..8295ca6 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -3788,7 +3788,7 @@ ixgbevf_check_link(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
        /* for SFP+ modules and DA cables on 82599 it can take up to 500usecs
         * before the link status is correct
         */
-       if (mac->type == ixgbe_mac_82599_vf) {
+       if (mac->type == ixgbe_mac_82599_vf && wait_to_complete) {
                int i;
 
                for (i = 0; i < 5; i++) {