patch 'net/mlx5: reset promiscuous modes on device close' has been queued to stable release 24.11.9

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 24.11.9

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 10/29/26. 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/bluca/dpdk-stable

This queued commit can be viewed at:
https://github.com/bluca/dpdk-stable/commit/56859ce01e82f533aad29ae0f2073b65ad973ba8

Thanks.

Luca Boccassi

---
>From 56859ce01e82f533aad29ae0f2073b65ad973ba8 Mon Sep 17 00:00:00 2001
From: David Marchand <david.marchand at redhat.com>
Date: Fri, 31 Jul 2026 11:23:32 +0200
Subject: [PATCH] net/mlx5: reset promiscuous modes on device close

[ upstream commit 963565124c497cd771de610f69128f60a0c4b2e4 ]

Since the DPDK port is backed by a kernel netdevice, leaving this
netdevice in promiscuous mode may have unexpected consequences.

Reset promiscuous and all multicast modes on close.

Fixes: dd4bb90bc3cb ("net/mlx5: use Netlink to enable promisc/allmulti mode")

Signed-off-by: David Marchand <david.marchand at redhat.com>
Acked-by: Dariusz Sosnowski <dsosnowski at nvidia.com>
---
 drivers/net/mlx5/mlx5.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 4ba3cde2606..9808bee6ecf 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -2470,6 +2470,16 @@ mlx5_dev_close(struct rte_eth_dev *dev)
 		mlx5_free(priv->rss_conf.rss_key);
 	if (priv->reta_idx != NULL)
 		mlx5_free(priv->reta_idx);
+	if (priv->sh->dev_cap.vf || priv->sh->dev_cap.sf) {
+		if (mlx5_os_get_promisc(dev)) {
+			DRV_LOG(DEBUG, "port %u resetting promiscuous mode", dev->data->port_id);
+			mlx5_os_set_promisc(dev, 0);
+		}
+		if (mlx5_os_get_allmulti(dev)) {
+			DRV_LOG(DEBUG, "port %u resetting all multicast mode", dev->data->port_id);
+			mlx5_os_set_allmulti(dev, 0);
+		}
+	}
 	if (sh->dev_cap.vf)
 		mlx5_os_mac_addr_flush(dev);
 	if (priv->nl_socket_route >= 0)
-- 
2.47.3

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2026-10-27 11:43:57.726520348 +0000
+++ 0103-net-mlx5-reset-promiscuous-modes-on-device-close.patch	2026-10-27 11:43:53.638063287 +0000
@@ -1 +1 @@
-From 963565124c497cd771de610f69128f60a0c4b2e4 Mon Sep 17 00:00:00 2001
+From 56859ce01e82f533aad29ae0f2073b65ad973ba8 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 963565124c497cd771de610f69128f60a0c4b2e4 ]
+
@@ -12 +13,0 @@
-Cc: stable at dpdk.org
@@ -21 +22 @@
-index fd01f188ff..5ddbd72b54 100644
+index 4ba3cde2606..9808bee6ecf 100644
@@ -24 +25 @@
-@@ -2498,6 +2498,16 @@ mlx5_dev_close(struct rte_eth_dev *dev)
+@@ -2470,6 +2470,16 @@ mlx5_dev_close(struct rte_eth_dev *dev)