patch 'net/hns3: enable PFC for all user priorities' has been queued to stable release 21.11.7

[Kevin Traynor <ktraynor@redhat.com>]

Hi,

FYI, your patch has been queued to stable release 21.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 04/09/24. 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

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/5c731f2f53b8af0685f58c16dfe7fa1c9e1ab167

Thanks.

Kevin

---
From 5c731f2f53b8af0685f58c16dfe7fa1c9e1ab167 Mon Sep 17 00:00:00 2001
From: Jie Hai <haijie1@huawei.com>
Date: Wed, 6 Mar 2024 17:20:47 +0800
Subject: [PATCH] net/hns3: enable PFC for all user priorities

[ upstream commit aae6989df36c105b917cf69975c075dfde2e6b84 ]

When user set TC number to 4 and enable PFC and ETS by dev_configure,
driver only enable user priority 0-3.
The packet with user priority 4-7 cannot trigger PFC frame.

Fix by enabling PFC for all user priorities.

By the way, the nb_tcs from user can never be 0 because of the ahead
check in driver. So remove this redundant code.

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

Signed-off-by: Jie Hai <haijie1@huawei.com>
---
 drivers/net/hns3/hns3_dcb.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/net/hns3/hns3_dcb.c b/drivers/net/hns3/hns3_dcb.c
index 1a156cca7e..89f8eda223 100644
--- a/drivers/net/hns3/hns3_dcb.c
+++ b/drivers/net/hns3/hns3_dcb.c
@@ -1511,5 +1511,4 @@ static int
 hns3_dcb_hw_configure(struct hns3_adapter *hns)
 {
-	struct rte_eth_dcb_rx_conf *dcb_rx_conf;
 	struct hns3_pf *pf = &hns->pf;
 	struct hns3_hw *hw = &hns->hw;
@@ -1531,10 +1530,6 @@ hns3_dcb_hw_configure(struct hns3_adapter *hns)
 
 	if (hw->data->dev_conf.dcb_capability_en & RTE_ETH_DCB_PFC_SUPPORT) {
-		dcb_rx_conf = &hw->data->dev_conf.rx_adv_conf.dcb_rx_conf;
-		if (dcb_rx_conf->nb_tcs == 0)
-			hw->dcb_info.pfc_en = 1; /* tc0 only */
-		else
-			hw->dcb_info.pfc_en =
-			RTE_LEN2MASK((uint8_t)dcb_rx_conf->nb_tcs, uint8_t);
+		hw->dcb_info.pfc_en =
+			RTE_LEN2MASK((uint8_t)HNS3_MAX_USER_PRIO, uint8_t);
 
 		hw->dcb_info.hw_pfc_map =
-- 
2.44.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2024-04-04 10:49:33.799204264 +0100
+++ 0001-net-hns3-enable-PFC-for-all-user-priorities.patch	2024-04-04 10:49:33.687457571 +0100
@@ -1 +1 @@
-From aae6989df36c105b917cf69975c075dfde2e6b84 Mon Sep 17 00:00:00 2001
+From 5c731f2f53b8af0685f58c16dfe7fa1c9e1ab167 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit aae6989df36c105b917cf69975c075dfde2e6b84 ]
+
@@ -16 +17,0 @@
-Cc: stable@dpdk.org
@@ -24 +25 @@
-index 2831d3dc62..915e4eb768 100644
+index 1a156cca7e..89f8eda223 100644
@@ -27 +28 @@
-@@ -1500,5 +1500,4 @@ static int
+@@ -1511,5 +1511,4 @@ static int
@@ -33 +34 @@
-@@ -1520,10 +1519,6 @@ hns3_dcb_hw_configure(struct hns3_adapter *hns)
+@@ -1531,10 +1530,6 @@ hns3_dcb_hw_configure(struct hns3_adapter *hns)