[dpdk-stable] patch 'net/ixgbe: fix busy wait during checking link status' has been queued to LTS release 17.11.2

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to LTS release 17.11.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 04/29/18. So please
shout if anyone has objections.

Thanks.

	--yliu

---
>From 709ce2c55bf4f7e6d2a904c3937f99bc2b12605b Mon Sep 17 00:00:00 2001
From: Chas Williams <chas3 at att.com>
Date: Thu, 1 Feb 2018 17:39:07 -0500
Subject: [PATCH] net/ixgbe: fix busy wait during checking link status

[ upstream commit 22da9548cc1841350421e9b7efbb659c8e0b3d3b ]

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")

Signed-off-by: Chas Williams <chas3 at att.com>
Acked-by: Helin Zhang <helin.zhang at intel.com>
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 830add2e2..249b6926e 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -3900,7 +3900,7 @@ 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++) {
-- 
2.11.0