[dpdk-stable] patch 'net/hns3: fix reporting undefined speed' has been queued to stable release 20.11.2

[Xueming Li]

Hi,

FYI, your patch has been queued to stable release 20.11.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/12/21. 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/steevenlee/dpdk

This queued commit can be viewed at:
https://github.com/steevenlee/dpdk/commit/e29b92b99820f2873b218da9c6403221f907e830

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From e29b92b99820f2873b218da9c6403221f907e830 Mon Sep 17 00:00:00 2001
From: Huisong Li <lihuisong at huawei.com>
Date: Tue, 23 Mar 2021 21:45:51 +0800
Subject: [PATCH] net/hns3: fix reporting undefined speed
Cc: Luca Boccassi <bluca at debian.org>

[ upstream commit b6579e3db794be36637a66e009199a1e7451e995 ]

There may be a case in future that the speed obtained from firmware
is undefined (such as, 400G or other rate), and link status of device is
up. At this case, PMD driver will reports 100Mbps to the user in the
"hns3_dev_link_update" API, which is unreasonable. Besides, if the
speed from firmware is zero, driver should report zero instead of
100Mbps.

Fixes: 59fad0f32135 ("net/hns3: support link update operation")

Signed-off-by: Huisong Li <lihuisong at huawei.com>
Signed-off-by: Min Hu (Connor) <humin29 at huawei.com>
---
 drivers/net/hns3/hns3_ethdev.c    | 5 ++++-
 drivers/net/hns3/hns3_ethdev_vf.c | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index 8f4ce58c0b..d8158cc56e 100644
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -2658,7 +2658,10 @@ hns3_dev_link_update(struct rte_eth_dev *eth_dev,
 		new_link.link_speed = mac->link_speed;
 		break;
 	default:
-		new_link.link_speed = ETH_SPEED_NUM_100M;
+		if (mac->link_status)
+			new_link.link_speed = ETH_SPEED_NUM_UNKNOWN;
+		else
+			new_link.link_speed = ETH_SPEED_NUM_NONE;
 		break;
 	}
 
diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c
index 9c84740d7b..366a1afa7d 100644
--- a/drivers/net/hns3/hns3_ethdev_vf.c
+++ b/drivers/net/hns3/hns3_ethdev_vf.c
@@ -2072,7 +2072,10 @@ hns3vf_dev_link_update(struct rte_eth_dev *eth_dev,
 		new_link.link_speed = mac->link_speed;
 		break;
 	default:
-		new_link.link_speed = ETH_SPEED_NUM_100M;
+		if (mac->link_status)
+			new_link.link_speed = ETH_SPEED_NUM_UNKNOWN;
+		else
+			new_link.link_speed = ETH_SPEED_NUM_NONE;
 		break;
 	}
 
-- 
2.25.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-05-10 23:59:29.317427100 +0800
+++ 0105-net-hns3-fix-reporting-undefined-speed.patch	2021-05-10 23:59:26.490000000 +0800
@@ -1 +1 @@
-From b6579e3db794be36637a66e009199a1e7451e995 Mon Sep 17 00:00:00 2001
+From e29b92b99820f2873b218da9c6403221f907e830 Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Luca Boccassi <bluca at debian.org>
+
+[ upstream commit b6579e3db794be36637a66e009199a1e7451e995 ]
@@ -14 +16,0 @@
-Cc: stable at dpdk.org
@@ -24 +26 @@
-index d392f6d109..73b96c18d1 100644
+index 8f4ce58c0b..d8158cc56e 100644
@@ -27 +29 @@
-@@ -2725,7 +2725,10 @@ hns3_dev_link_update(struct rte_eth_dev *eth_dev,
+@@ -2658,7 +2658,10 @@ hns3_dev_link_update(struct rte_eth_dev *eth_dev,
@@ -40 +42 @@
-index 30788f5c32..6c3ddcc50e 100644
+index 9c84740d7b..366a1afa7d 100644
@@ -43 +45 @@
-@@ -2123,7 +2123,10 @@ hns3vf_dev_link_update(struct rte_eth_dev *eth_dev,
+@@ -2072,7 +2072,10 @@ hns3vf_dev_link_update(struct rte_eth_dev *eth_dev,