[PATCH net-next v4 06/14] mlx5: convert to ndo_set_rx_mode_async

Stanislav Fomichev
2026-04-01T01:19:22Z

Convert mlx5 from ndo_set_rx_mode to ndo_set_rx_mode_async. The
driver's mlx5e_set_rx_mode now receives uc/mc snapshots and calls
mlx5e_fs_set_rx_mode_work directly instead of queueing work.

mlx5e_sync_netdev_addr and mlx5e_handle_netdev_addr now take
explicit uc/mc list parameters and iterate with
netdev_hw_addr_list_for_each instead of netdev_for_each_{uc,mc}_addr.

Fallback to netdev's uc/mc in a few places and grab addr lock.

Cc: Saeed Mahameed <saeedm@nvidia.com>
Cc: Tariq Toukan <tariqt@nvidia.com>
Cc: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
---
.../net/ethernet/mellanox/mlx5/core/en/fs.h | 5 ++-
.../net/ethernet/mellanox/mlx5/core/en_fs.c | 32 ++++++++++++-------
.../net/ethernet/mellanox/mlx5/core/en_main.c | 13 +++++---
3 files changed, 34 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h b/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h
index c3408b3f7010..091b80a67189 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h
@@ -201,7 +201,10 @@ int mlx5e_add_vlan_trap(struct mlx5e_flow_steering *fs, int trap_id, int tir_nu
void mlx5e_remove_vlan_trap(struct mlx5e_flow_steering *fs);
int mlx5e_add_mac_trap(struct mlx5e_flow_steering *fs, int trap_id, int tir_num);
void mlx5e_remove_mac_trap(struct mlx5e_flow_steering *fs);
-void mlx5e_fs_set_rx_mode_work(struct mlx5e_flow_steering *fs, struct net_device *netdev);
+void mlx5e_fs_set_rx_mode_work(struct mlx5e_flow_steering *fs,
+ struct net_device *netdev,
+ struct netdev_hw_addr_list *uc,
+ struct netdev_hw_addr_list *mc);
int mlx5e_fs_vlan_rx_add_vid(struct mlx5e_flow_steering *fs,
struct net_device *netdev,
__be16 proto, u16 vid);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
index fdfe9d1cfe21..12492c4a5d41 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
@@ -609,20 +609,26 @@ static void mlx5e_execute_l2_action(struct mlx5e_flow_steering *fs,
}

static void mlx5e_sync_netdev_addr(struct mlx5e_flow_steering *fs,
- struct net_device *netdev)
+ struct net_device *netdev,
+ struct netdev_hw_addr_list *uc,
+ struct netdev_hw_addr_list *mc)
{
struct netdev_hw_addr *ha;

- netif_addr_lock_bh(netdev);
+ if (!uc || !mc) {
+ netif_addr_lock_bh(netdev);
+ mlx5e_sync_netdev_addr(fs, netdev, &netdev->uc, &netdev->mc);
+ netif_addr_unlock_bh(netdev);
+ return;
+ }

mlx5e_add_l2_to_hash(fs->l2.netdev_uc, netdev->dev_addr);
- netdev_for_each_uc_addr(ha, netdev)
+
+ netdev_hw_addr_list_for_each(ha, uc)
mlx5e_add_l2_to_hash(fs->l2.netdev_uc, ha->addr);

- netdev_for_each_mc_addr(ha, netdev)
+ netdev_hw_addr_list_for_each(ha, mc)
mlx5e_add_l2_to_hash(fs->l2.netdev_mc, ha->addr);
-
- netif_addr_unlock_bh(netdev);
}

static void mlx5e_fill_addr_array(struct mlx5e_flow_steering *fs, int list_type,
@@ -724,7 +730,9 @@ static void mlx5e_apply_netdev_addr(struct mlx5e_flow_steering *fs)
}

static void mlx5e_handle_netdev_addr(struct mlx5e_flow_steering *fs,
- struct net_device *netdev)
+ struct net_device *netdev,
+ struct netdev_hw_addr_list *uc,
+ struct netdev_hw_addr_list *mc)
{
struct mlx5e_l2_hash_node *hn;
struct hlist_node *tmp;
@@ -736,7 +744,7 @@ static void mlx5e_handle_netdev_addr(struct mlx5e_flow_steering *fs,
hn->action = MLX5E_ACTION_DEL;

if (fs->state_destroy)
- mlx5e_sync_netdev_addr(fs, netdev);
+ mlx5e_sync_netdev_addr(fs, netdev, uc, mc);

mlx5e_apply_netdev_addr(fs);
}
@@ -820,13 +828,15 @@ 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 net_device *netdev,
+ struct netdev_hw_addr_list *uc,
+ struct netdev_hw_addr_list *mc)
{
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);
+ mlx5e_handle_netdev_addr(fs, netdev, uc, mc);
goto update_vport_context;
}

@@ -856,7 +866,7 @@ void mlx5e_fs_set_rx_mode_work(struct mlx5e_flow_steering *fs,
if (enable_broadcast)
mlx5e_add_l2_flow_rule(fs, &ea->broadcast, MLX5E_FULLMATCH);

- mlx5e_handle_netdev_addr(fs, netdev);
+ mlx5e_handle_netdev_addr(fs, netdev, uc, mc);

if (disable_broadcast)
mlx5e_del_l2_flow_rule(fs, &ea->broadcast);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 1238e5356012..45f5bacef255 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -4105,11 +4105,13 @@ static void mlx5e_nic_set_rx_mode(struct mlx5e_priv *priv)
queue_work(priv->wq, &priv->set_rx_mode_work);
}

-static void mlx5e_set_rx_mode(struct net_device *dev)
+static void mlx5e_set_rx_mode(struct net_device *dev,
+ struct netdev_hw_addr_list *uc,
+ struct netdev_hw_addr_list *mc)
{
struct mlx5e_priv *priv = netdev_priv(dev);

- mlx5e_nic_set_rx_mode(priv);
+ mlx5e_fs_set_rx_mode_work(priv->fs, dev, uc, mc);
}

static int mlx5e_set_mac(struct net_device *netdev, void *addr)
@@ -5284,7 +5286,7 @@ const struct net_device_ops mlx5e_netdev_ops = {
.ndo_setup_tc = mlx5e_setup_tc,
.ndo_select_queue = mlx5e_select_queue,
.ndo_get_stats64 = mlx5e_get_stats,
- .ndo_set_rx_mode = mlx5e_set_rx_mode,
+ .ndo_set_rx_mode_async = mlx5e_set_rx_mode,
.ndo_set_mac_address = mlx5e_set_mac,
.ndo_vlan_rx_add_vid = mlx5e_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = mlx5e_vlan_rx_kill_vid,
@@ -6269,8 +6271,11 @@ void mlx5e_set_rx_mode_work(struct work_struct *work)
{
struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
set_rx_mode_work);
+ struct net_device *dev = priv->netdev;

- return mlx5e_fs_set_rx_mode_work(priv->fs, priv->netdev);
+ netdev_lock_ops(dev);
+ mlx5e_fs_set_rx_mode_work(priv->fs, dev, NULL, NULL);
+ netdev_unlock_ops(dev);
}

/* mlx5e generic netdev management API (move to en_common.c) */
--
2.53.0