1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
2 /* Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
4 #include <linux/debugfs.h>
6 #include "bridge_priv.h"
8 static void *mlx5_esw_bridge_debugfs_start(struct seq_file *seq, loff_t *pos);
9 static void *mlx5_esw_bridge_debugfs_next(struct seq_file *seq, void *v, loff_t *pos);
10 static void mlx5_esw_bridge_debugfs_stop(struct seq_file *seq, void *v);
11 static int mlx5_esw_bridge_debugfs_show(struct seq_file *seq, void *v);
13 static const struct seq_operations mlx5_esw_bridge_debugfs_sops = {
14 .start = mlx5_esw_bridge_debugfs_start,
15 .next = mlx5_esw_bridge_debugfs_next,
16 .stop = mlx5_esw_bridge_debugfs_stop,
17 .show = mlx5_esw_bridge_debugfs_show,
19 DEFINE_SEQ_ATTRIBUTE(mlx5_esw_bridge_debugfs);
21 static void *mlx5_esw_bridge_debugfs_start(struct seq_file *seq, loff_t *pos)
23 struct mlx5_esw_bridge *bridge = seq->private;
26 return *pos ? seq_list_start(&bridge->fdb_list, *pos - 1) : SEQ_START_TOKEN;
29 static void *mlx5_esw_bridge_debugfs_next(struct seq_file *seq, void *v, loff_t *pos)
31 struct mlx5_esw_bridge *bridge = seq->private;
33 return seq_list_next(v == SEQ_START_TOKEN ? &bridge->fdb_list : v, &bridge->fdb_list, pos);
36 static void mlx5_esw_bridge_debugfs_stop(struct seq_file *seq, void *v)
41 static int mlx5_esw_bridge_debugfs_show(struct seq_file *seq, void *v)
43 struct mlx5_esw_bridge_fdb_entry *entry;
44 u64 packets, bytes, lastuse;
46 if (v == SEQ_START_TOKEN) {
47 seq_printf(seq, "%-16s %-17s %4s %20s %20s %20s %5s\n",
48 "DEV", "MAC", "VLAN", "PACKETS", "BYTES", "LASTUSE", "FLAGS");
52 entry = list_entry(v, struct mlx5_esw_bridge_fdb_entry, list);
53 mlx5_fc_query_cached_raw(entry->ingress_counter, &bytes, &packets, &lastuse);
54 seq_printf(seq, "%-16s %-17pM %4d %20llu %20llu %20llu %#5x\n",
55 entry->dev->name, entry->key.addr, entry->key.vid, packets, bytes, lastuse,
60 void mlx5_esw_bridge_debugfs_init(struct net_device *br_netdev, struct mlx5_esw_bridge *bridge)
62 if (!bridge->br_offloads->debugfs_root)
65 bridge->debugfs_dir = debugfs_create_dir(br_netdev->name,
66 bridge->br_offloads->debugfs_root);
67 debugfs_create_file("fdb", 0400, bridge->debugfs_dir, bridge,
68 &mlx5_esw_bridge_debugfs_fops);
71 void mlx5_esw_bridge_debugfs_cleanup(struct mlx5_esw_bridge *bridge)
73 debugfs_remove_recursive(bridge->debugfs_dir);
74 bridge->debugfs_dir = NULL;
77 void mlx5_esw_bridge_debugfs_offloads_init(struct mlx5_esw_bridge_offloads *br_offloads)
79 if (!br_offloads->esw->debugfs_root)
82 br_offloads->debugfs_root = debugfs_create_dir("bridge", br_offloads->esw->debugfs_root);
85 void mlx5_esw_bridge_debugfs_offloads_cleanup(struct mlx5_esw_bridge_offloads *br_offloads)
87 debugfs_remove_recursive(br_offloads->debugfs_root);
88 br_offloads->debugfs_root = NULL;