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net/mlx5e: Allow set_rx_mode on uplink representor

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set_rx_mode handler was skipped on uplink representor, since uplink
relies on FDB to forward all traffic to it by default, which works
perfectly on a single PF per physical port configuration, as explicit
mac request isn't required, but In case of multi-host and DPU
environments, uplink can only use own mac address, as set_rx_mode
wasn't honored in uplink rep.

Since MPFs (Multi PF switch) requires PFs to request explicit mac
forwarding, this patch enables set_rx_mode on uplink representor to
allow PF mac programming into MPFs table in switchdev mode, allowing
use-cases such as arbitrary mac address forwarding via linux bridge.

Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260319005456.82745-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Saeed Mahameed
2026-03-20 19:56:15 -07:00
committed by Jakub Kicinski
parent 2e69e55897
commit 609e79253a
3 changed files with 12 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
+10
View File
@@ -822,8 +822,14 @@ static void mlx5e_destroy_promisc_table(struct mlx5e_flow_steering *fs)
void mlx5e_fs_set_rx_mode_work(struct mlx5e_flow_steering *fs,
struct net_device *netdev)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
struct mlx5e_l2_table *ea = &fs->l2;
if (mlx5e_is_uplink_rep(priv)) {
mlx5e_handle_netdev_addr(fs, netdev);
goto update_vport_context;
}
bool rx_mode_enable = fs->state_destroy;
bool promisc_enabled = rx_mode_enable && (netdev->flags & IFF_PROMISC);
bool allmulti_enabled = rx_mode_enable && (netdev->flags & IFF_ALLMULTI);
@@ -863,6 +869,7 @@ void mlx5e_fs_set_rx_mode_work(struct mlx5e_flow_steering *fs,
ea->allmulti_enabled = allmulti_enabled;
ea->broadcast_enabled = broadcast_enabled;
update_vport_context:
mlx5e_vport_context_update(fs, netdev);
}
@@ -983,6 +990,9 @@ static int mlx5e_add_l2_flow_rule(struct mlx5e_flow_steering *fs,
u8 *mc_dmac;
u8 *mv_dmac;
if (!ft)
return -EINVAL;
spec = kvzalloc_obj(*spec);
if (!spec)
return -ENOMEM;
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
-3
View File
@@ -4102,9 +4102,6 @@ mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
static void mlx5e_nic_set_rx_mode(struct mlx5e_priv *priv)
{
if (mlx5e_is_uplink_rep(priv))
return; /* no rx mode for uplink rep */
queue_work(priv->wq, &priv->set_rx_mode_work);
}
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+2
View File
@@ -1369,6 +1369,8 @@ static void mlx5e_uplink_rep_disable(struct mlx5e_priv *priv)
netdev_unlock(priv->netdev);
rtnl_unlock();
/* clean-up uplink's mpfs mac table */
queue_work(priv->wq, &priv->set_rx_mode_work);
mlx5e_rep_bridge_cleanup(priv);
mlx5e_dcbnl_delete_app(priv);
mlx5_notifier_unregister(mdev, &priv->events_nb);