Merge branch 'mlx5-misc-fixes-2026-01-26'

Tariq Toukan says:

====================
mlx5 misc fixes 2026-01-26

misc bug fixes from the team to the mlx5 core and Eth drivers.
====================

Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

drivers/net/ethernet/mellanox/mlx5/core/dev.c

···
 	return plen && flen && flen == plen &&
 		!memcmp(fsystem_guid, psystem_guid, flen);
 }
+
+void mlx5_core_reps_aux_devs_remove(struct mlx5_core_dev *dev)
+{
+	struct mlx5_priv *priv = &dev->priv;
+
+	if (priv->adev[MLX5_INTERFACE_PROTOCOL_ETH])
+		device_lock_assert(&priv->adev[MLX5_INTERFACE_PROTOCOL_ETH]->adev.dev);
+	else
+		mlx5_core_err(dev, "ETH driver already removed\n");
+	if (priv->adev[MLX5_INTERFACE_PROTOCOL_IB_REP])
+		del_adev(&priv->adev[MLX5_INTERFACE_PROTOCOL_IB_REP]->adev);
+	if (priv->adev[MLX5_INTERFACE_PROTOCOL_ETH_REP])
+		del_adev(&priv->adev[MLX5_INTERFACE_PROTOCOL_ETH_REP]->adev);
+}

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

···
 		mlx5e_queue_update_stats(priv);
 	}
 
+	netdev_stats_to_stats64(stats, &dev->stats);
+
 	if (mlx5e_is_uplink_rep(priv)) {
 		struct mlx5e_vport_stats *vstats = &priv->stats.vport;
 
···
 		mlx5e_fold_sw_stats64(priv, stats);
 	}
 
-	stats->rx_missed_errors = priv->stats.qcnt.rx_out_of_buffer;
-	stats->rx_dropped = PPORT_2863_GET(pstats, if_in_discards);
+	stats->rx_missed_errors += priv->stats.qcnt.rx_out_of_buffer;
+	stats->rx_dropped += PPORT_2863_GET(pstats, if_in_discards);
 
-	stats->rx_length_errors =
+	stats->rx_length_errors +=
 		PPORT_802_3_GET(pstats, a_in_range_length_errors) +
 		PPORT_802_3_GET(pstats, a_out_of_range_length_field) +
 		PPORT_802_3_GET(pstats, a_frame_too_long_errors) +
 		VNIC_ENV_GET(&priv->stats.vnic, eth_wqe_too_small);
-	stats->rx_crc_errors =
+	stats->rx_crc_errors +=
 		PPORT_802_3_GET(pstats, a_frame_check_sequence_errors);
-	stats->rx_frame_errors = PPORT_802_3_GET(pstats, a_alignment_errors);
-	stats->tx_aborted_errors = PPORT_2863_GET(pstats, if_out_discards);
-	stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
-			   stats->rx_frame_errors;
-	stats->tx_errors = stats->tx_aborted_errors + stats->tx_carrier_errors;
+	stats->rx_frame_errors += PPORT_802_3_GET(pstats, a_alignment_errors);
+	stats->tx_aborted_errors += PPORT_2863_GET(pstats, if_out_discards);
+	stats->rx_errors += stats->rx_length_errors + stats->rx_crc_errors +
+			    stats->rx_frame_errors;
+	stats->tx_errors += stats->tx_aborted_errors + stats->tx_carrier_errors;
 }
 
 static void mlx5e_nic_set_rx_mode(struct mlx5e_priv *priv)
···
 	struct mlx5e_priv *priv = netdev_priv(netdev);
 	struct mlx5_core_dev *mdev = edev->mdev;
 
+	mlx5_eswitch_safe_aux_devs_remove(mdev);
 	mlx5_core_uplink_netdev_set(mdev, NULL);
 
 	if (priv->profile)

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

···
 
 static void mlx5e_tc_del_fdb_peers_flow(struct mlx5e_tc_flow *flow)
 {
+	struct mlx5_devcom_comp_dev *devcom;
+	struct mlx5_devcom_comp_dev *pos;
+	struct mlx5_eswitch *peer_esw;
 	int i;
 
-	for (i = 0; i < MLX5_MAX_PORTS; i++) {
-		if (i == mlx5_get_dev_index(flow->priv->mdev))
-			continue;
+	devcom = flow->priv->mdev->priv.eswitch->devcom;
+	mlx5_devcom_for_each_peer_entry(devcom, peer_esw, pos) {
+		i = mlx5_get_dev_index(peer_esw->dev);
 		mlx5e_tc_del_fdb_peer_flow(flow, i);
 	}
 }
···
 
 void mlx5e_tc_clean_fdb_peer_flows(struct mlx5_eswitch *esw)
 {
+	struct mlx5_devcom_comp_dev *devcom;
+	struct mlx5_devcom_comp_dev *pos;
 	struct mlx5e_tc_flow *flow, *tmp;
+	struct mlx5_eswitch *peer_esw;
 	int i;
 
-	for (i = 0; i < MLX5_MAX_PORTS; i++) {
-		if (i == mlx5_get_dev_index(esw->dev))
-			continue;
+	devcom = esw->devcom;
+
+	mlx5_devcom_for_each_peer_entry(devcom, peer_esw, pos) {
+		i = mlx5_get_dev_index(peer_esw->dev);
 		list_for_each_entry_safe(flow, tmp, &esw->offloads.peer_flows[i], peer[i])
 			mlx5e_tc_del_fdb_peers_flow(flow);
 	}

drivers/net/ethernet/mellanox/mlx5/core/eswitch.h

···
 int mlx5_esw_ipsec_vf_packet_offload_supported(struct mlx5_core_dev *dev,
 					       u16 vport_num);
 bool mlx5_esw_host_functions_enabled(const struct mlx5_core_dev *dev);
+void mlx5_eswitch_safe_aux_devs_remove(struct mlx5_core_dev *dev);
 #else  /* CONFIG_MLX5_ESWITCH */
 /* eswitch API stubs */
 static inline int  mlx5_eswitch_init(struct mlx5_core_dev *dev) { return 0; }
···
 {
 	return false;
 }
+
+static inline void
+mlx5_eswitch_safe_aux_devs_remove(struct mlx5_core_dev *dev) {}
 
 #endif /* CONFIG_MLX5_ESWITCH */
 

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c

···
 	return true;
 }
 
+#define MLX5_ESW_HOLD_TIMEOUT_MS 7000
+#define MLX5_ESW_HOLD_RETRY_DELAY_MS 500
+
+void mlx5_eswitch_safe_aux_devs_remove(struct mlx5_core_dev *dev)
+{
+	unsigned long timeout;
+	bool hold_esw = true;
+
+	/* Wait for any concurrent eswitch mode transition to complete. */
+	if (!mlx5_esw_hold(dev)) {
+		timeout = jiffies + msecs_to_jiffies(MLX5_ESW_HOLD_TIMEOUT_MS);
+		while (!mlx5_esw_hold(dev)) {
+			if (!time_before(jiffies, timeout)) {
+				hold_esw = false;
+				break;
+			}
+			msleep(MLX5_ESW_HOLD_RETRY_DELAY_MS);
+		}
+	}
+	if (hold_esw) {
+		if (mlx5_eswitch_mode(dev) == MLX5_ESWITCH_OFFLOADS)
+			mlx5_core_reps_aux_devs_remove(dev);
+		mlx5_esw_release(dev);
+	}
+}
+
 int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
 				  struct netlink_ext_ack *extack)
 {

drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h

···
 void mlx5_unregister_device(struct mlx5_core_dev *dev);
 void mlx5_dev_set_lightweight(struct mlx5_core_dev *dev);
 bool mlx5_dev_is_lightweight(struct mlx5_core_dev *dev);
+void mlx5_core_reps_aux_devs_remove(struct mlx5_core_dev *dev);
 
 void mlx5_fw_reporters_create(struct mlx5_core_dev *dev);
 int mlx5_query_mtpps(struct mlx5_core_dev *dev, u32 *mtpps, u32 mtpps_size);