patch 'net/hns3: fix non-zero weight for disabled TC' has been queued to stable release 22.11.3

[Xueming Li]

Hi,

FYI, your patch has been queued to stable release 22.11.3

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 08/11/23. 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://git.dpdk.org/dpdk-stable/log/?h=22.11-staging

This queued commit can be viewed at:
https://git.dpdk.org/dpdk-stable/commit/?h=22.11-staging&id=36791bbc4b30bd40800a41efd850b6e0623774ce

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From 36791bbc4b30bd40800a41efd850b6e0623774ce Mon Sep 17 00:00:00 2001
From: Huisong Li <lihuisong at huawei.com>
Date: Fri, 7 Jul 2023 18:40:53 +0800
Subject: [PATCH] net/hns3: fix non-zero weight for disabled TC
Cc: Xueming Li <xuemingl at nvidia.com>

[ upstream commit 1abcdb3f247393a04703071452b560a77ab23c04 ]

hns3 PF driver enables one TC, allocates to 100% weight for this
TC and 0% for other disabled TC by default. But driver modifies
the weight to 1% for disabled TC and then set to hardware to make
all TC work in DWRR mode. As a result, the total percent of all TC
is more than 100%. Actually, this operation is also redundant,
because these disabled TC will never be used. So this patch sets
the weight of all TC based on user's configuration.

Fixes: 62e3ccc2b94c ("net/hns3: support flow control")

Signed-off-by: Huisong Li <lihuisong at huawei.com>
Signed-off-by: Dongdong Liu <liudongdong3 at huawei.com>
---
 drivers/net/hns3/hns3_dcb.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/net/hns3/hns3_dcb.c b/drivers/net/hns3/hns3_dcb.c
index af045b22f7..07b8c46a81 100644
--- a/drivers/net/hns3/hns3_dcb.c
+++ b/drivers/net/hns3/hns3_dcb.c
@@ -237,9 +237,9 @@ hns3_dcb_qs_weight_cfg(struct hns3_hw *hw, uint16_t qs_id, uint8_t dwrr)
 static int
 hns3_dcb_ets_tc_dwrr_cfg(struct hns3_hw *hw)
 {
-#define DEFAULT_TC_WEIGHT	1
 #define DEFAULT_TC_OFFSET	14
 	struct hns3_ets_tc_weight_cmd *ets_weight;
+	struct hns3_pg_info *pg_info;
 	struct hns3_cmd_desc desc;
 	uint8_t i;
 
@@ -247,13 +247,6 @@ hns3_dcb_ets_tc_dwrr_cfg(struct hns3_hw *hw)
 	ets_weight = (struct hns3_ets_tc_weight_cmd *)desc.data;
 
 	for (i = 0; i < HNS3_MAX_TC_NUM; i++) {
-		struct hns3_pg_info *pg_info;
-
-		ets_weight->tc_weight[i] = DEFAULT_TC_WEIGHT;
-
-		if (!(hw->hw_tc_map & BIT(i)))
-			continue;
-
 		pg_info = &hw->dcb_info.pg_info[hw->dcb_info.tc_info[i].pgid];
 		ets_weight->tc_weight[i] = pg_info->tc_dwrr[i];
 	}
-- 
2.25.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2023-08-09 21:51:19.893984700 +0800
+++ 0067-net-hns3-fix-non-zero-weight-for-disabled-TC.patch	2023-08-09 21:51:18.214352000 +0800
@@ -1 +1 @@
-From 1abcdb3f247393a04703071452b560a77ab23c04 Mon Sep 17 00:00:00 2001
+From 36791bbc4b30bd40800a41efd850b6e0623774ce Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Xueming Li <xuemingl at nvidia.com>
+
+[ upstream commit 1abcdb3f247393a04703071452b560a77ab23c04 ]
@@ -15 +17,0 @@
-Cc: stable at dpdk.org