patch 'net/bonding: avoid RSS RETA update in flow isolation mode' has been queued to stable release 23.11.5

[Xueming Li]

Hi,

FYI, your patch has been queued to stable release 23.11.5

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 08/10/25. 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=23.11-staging

This queued commit can be viewed at:
https://git.dpdk.org/dpdk-stable/commit/?h=23.11-staging&id=573996eb24ed400327fd5ee2c76ce233f0fee80d

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From 573996eb24ed400327fd5ee2c76ce233f0fee80d Mon Sep 17 00:00:00 2001
From: Madhuker Mythri <madhuker.mythri at oracle.com>
Date: Fri, 4 Jul 2025 19:20:31 +0530
Subject: [PATCH] net/bonding: avoid RSS RETA update in flow isolation mode
Cc: Xueming Li <xuemingl at nvidia.com>

[ upstream commit a0000859ffbaaaf90bbb9c0f2f5bb7a3d4f5bc9f ]

In bonding PMD, member_start() function checks whether RSS(mq_mode) is
enabled and then calling the RSS rte_eth_dev_rss_reta_update() API, which
is returning error in-case of device configured in flow isolation-mode.
When the device configured with flow isolation mode RSS reta update is not
required and the API was not supported. For example in-case of mlx5 PMD,
RSS reta update API was not supported, when the device is configured in
flow isolation-mode.

So, added check to verify if the device is configured in flow-isolation
mode, then do not call the rte_eth_dev_rss_reta_update() API.

Fixes: 734ce47f71e0 ("bonding: support RSS dynamic configuration")

Signed-off-by: Madhuker Mythri <madhuker.mythri at oracle.com>
---
 drivers/net/bonding/rte_eth_bond_pmd.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index c3a761d0d4..bf6a811ead 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -1905,12 +1905,13 @@ member_start(struct rte_eth_dev *bonding_eth_dev,
 		}
 	}
 
-	/* If RSS is enabled for bonding, synchronize RETA */
-	if (bonding_eth_dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS) {
+	/*
+	 * If flow-isolation is not enabled, then check whether RSS is enabled for
+	 * bonding, synchronize RETA
+	 */
+	if (internals->flow_isolated_valid == 0 &&
+		(bonding_eth_dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS)) {
 		int i;
-		struct bond_dev_private *internals;
-
-		internals = bonding_eth_dev->data->dev_private;
 
 		for (i = 0; i < internals->member_count; i++) {
 			if (internals->members[i].port_id == member_port_id) {
-- 
2.34.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2025-07-30 15:02:13.551518388 +0800
+++ 0026-net-bonding-avoid-RSS-RETA-update-in-flow-isolation-.patch	2025-07-30 15:02:12.838312186 +0800
@@ -1 +1 @@
-From a0000859ffbaaaf90bbb9c0f2f5bb7a3d4f5bc9f Mon Sep 17 00:00:00 2001
+From 573996eb24ed400327fd5ee2c76ce233f0fee80d Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Xueming Li <xuemingl at nvidia.com>
+
+[ upstream commit a0000859ffbaaaf90bbb9c0f2f5bb7a3d4f5bc9f ]
@@ -18 +20,0 @@
-Cc: stable at dpdk.org
@@ -26 +28 @@
-index 83339bae3d..4906701a95 100644
+index c3a761d0d4..bf6a811ead 100644
@@ -29 +31 @@
-@@ -1904,12 +1904,13 @@ member_start(struct rte_eth_dev *bonding_eth_dev,
+@@ -1905,12 +1905,13 @@ member_start(struct rte_eth_dev *bonding_eth_dev,