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From: Xueming Li <xuemingl@nvidia.com>
To: Huisong Li <lihuisong@huawei.com>
CC: Luca Boccassi <bluca@debian.org>, Min Hu <humin29@huawei.com>, dpdk stable
<stable@dpdk.org>
Date: Sat, 12 Jun 2021 07:04:25 +0800
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Subject: [dpdk-stable] patch 'net/hns3: fix DCB reconfiguration' has been
queued to stable release 20.11.2
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Errors-To: stable-bounces@dpdk.org
Sender: "stable" <stable-bounces@dpdk.org>
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 06/14/21. 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/f4a3f4a6b9111ab5ec3682e9cd8428a87040b1f4
Thanks.
Xueming Li <xuemingl@nvidia.com>
---
>From f4a3f4a6b9111ab5ec3682e9cd8428a87040b1f4 Mon Sep 17 00:00:00 2001
From: Huisong Li <lihuisong@huawei.com>
Date: Sat, 15 May 2021 08:52:37 +0800
Subject: [PATCH] net/hns3: fix DCB reconfiguration
Cc: Luca Boccassi <bluca@debian.org>
[ upstream commit b67bdfc8f6630934f3005ad531225c7203304661 ]
Whether the enable bit of the pfc ("pfc_en") is changed or not is one of
the conditions for reconfiguring the DCB. Currently, pfc_en is not
rolled back when DCB configuration fails. This patch fixes it.
Fixes: 62e3ccc2b94c ("net/hns3: support flow control")
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
---
drivers/net/hns3/hns3_dcb.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/hns3/hns3_dcb.c b/drivers/net/hns3/hns3_dcb.c
index 15f5f05134..7ed220be2b 100644
--- a/drivers/net/hns3/hns3_dcb.c
+++ b/drivers/net/hns3/hns3_dcb.c
@@ -1501,6 +1501,7 @@ hns3_dcb_hw_configure(struct hns3_adapter *hns)
enum hns3_fc_status fc_status = hw->current_fc_status;
enum hns3_fc_mode requested_fc_mode = hw->requested_fc_mode;
uint8_t hw_pfc_map = hw->dcb_info.hw_pfc_map;
+ uint8_t pfc_en = hw->dcb_info.pfc_en;
int ret;
if (pf->tx_sch_mode != HNS3_FLAG_TC_BASE_SCH_MODE &&
@@ -1554,6 +1555,7 @@ pfc_setup_fail:
hw->current_fc_status = fc_status;
buffer_alloc_fail:
+ hw->dcb_info.pfc_en = pfc_en;
hw->dcb_info.hw_pfc_map = hw_pfc_map;
return ret;
--
2.25.1
---
Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- - 2021-06-12 06:54:00.871395700 +0800
+++ 0171-net-hns3-fix-DCB-reconfiguration.patch 2021-06-12 06:53:56.680000000 +0800
@@ -1 +1 @@
-From b67bdfc8f6630934f3005ad531225c7203304661 Mon Sep 17 00:00:00 2001
+From f4a3f4a6b9111ab5ec3682e9cd8428a87040b1f4 Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Luca Boccassi <bluca@debian.org>
+
+[ upstream commit b67bdfc8f6630934f3005ad531225c7203304661 ]
@@ -11 +13,0 @@
-Cc: stable@dpdk.org
@@ -20 +22 @@
-index 1cb6adb886..90c0d041c9 100644
+index 15f5f05134..7ed220be2b 100644
@@ -23 +25 @@
-@@ -1543,6 +1543,7 @@ hns3_dcb_hw_configure(struct hns3_adapter *hns)
+@@ -1501,6 +1501,7 @@ hns3_dcb_hw_configure(struct hns3_adapter *hns)
@@ -31 +33 @@
-@@ -1596,6 +1597,7 @@ pfc_setup_fail:
+@@ -1554,6 +1555,7 @@ pfc_setup_fail: