[dpdk-stable] patch 'net/ixgbe: fix link status' has been queued to LTS release 18.11.6

[Kevin Traynor]

Hi,

FYI, your patch has been queued to LTS release 18.11.6

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 12/17/19. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable-queue/commit/258c3b55257d9d58ee71c62111d176114a0d9552

Thanks.

Kevin.

---
>From 258c3b55257d9d58ee71c62111d176114a0d9552 Mon Sep 17 00:00:00 2001
From: Lunyuan Cui <lunyuanx.cui at intel.com>
Date: Mon, 18 Nov 2019 15:37:44 +0000
Subject: [PATCH] net/ixgbe: fix link status

[ upstream commit c3f2fbff78cf5bd4f213b4f281251d401b09943f ]

The link status for 82599eb got from link status register was not
correct. Check the enable/disable flag of tx laser, set the link
status down if tx laser disabled. Then, we can get correct status.
But after port reset, tx laser register will be reset enable.
Link status will always be up. So set tx laser disable when port resets.

When hw->mac.autotry_restart is true, whether tx laser is disable or
enable, it will be set enable in ixgbe_flap_tx_laser_multispeed_fiber().
hw->mac.autotry_restart can be set true in both port init and port start.
Because we don't need this treatment before port starts, set
hw->mac.autotry_restart false when port init.

Fixes: 0408f47ba4d6 ("net/ixgbe: fix busy polling while fiber link update")

Signed-off-by: Lunyuan Cui <lunyuanx.cui at intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
---
 drivers/net/ixgbe/ixgbe_ethdev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index d099bc120..25460b072 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -1174,4 +1174,5 @@ eth_ixgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
 #else
 	diag = ixgbe_init_hw(hw);
+	hw->mac.autotry_restart = false;
 #endif /* RTE_LIBRTE_IXGBE_BYPASS */
 
@@ -1279,4 +1280,6 @@ eth_ixgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
 	ixgbe_enable_intr(eth_dev);
 
+	ixgbe_dev_set_link_down(eth_dev);
+
 	/* initialize filter info */
 	memset(filter_info, 0,
-- 
2.21.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-12-11 21:24:17.613157020 +0000
+++ 0063-net-ixgbe-fix-link-status.patch	2019-12-11 21:24:12.739649730 +0000
@@ -1 +1 @@
-From c3f2fbff78cf5bd4f213b4f281251d401b09943f Mon Sep 17 00:00:00 2001
+From 258c3b55257d9d58ee71c62111d176114a0d9552 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit c3f2fbff78cf5bd4f213b4f281251d401b09943f ]
+
@@ -19 +20,0 @@
-Cc: stable at dpdk.org
@@ -28 +29 @@
-index 118bc7475..2c6fd0f13 100644
+index d099bc120..25460b072 100644
@@ -31 +32 @@
-@@ -1191,4 +1191,5 @@ eth_ixgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
+@@ -1174,4 +1174,5 @@ eth_ixgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
@@ -37 +38 @@
-@@ -1301,4 +1302,6 @@ eth_ixgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
+@@ -1279,4 +1280,6 @@ eth_ixgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)