1 files changed, 89 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge_debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge_debugfs.c
new file mode 100644
index 000000000000..dbd7cbe6cbf3
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge_debugfs.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/* Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
+
+#include <linux/debugfs.h>
+#include "bridge.h"
+#include "bridge_priv.h"
+
+static void *mlx5_esw_bridge_debugfs_start(struct seq_file *seq, loff_t *pos);
+static void *mlx5_esw_bridge_debugfs_next(struct seq_file *seq, void *v, loff_t *pos);
+static void mlx5_esw_bridge_debugfs_stop(struct seq_file *seq, void *v);
+static int mlx5_esw_bridge_debugfs_show(struct seq_file *seq, void *v);
+
+static const struct seq_operations mlx5_esw_bridge_debugfs_sops = {
+	.start	= mlx5_esw_bridge_debugfs_start,
+	.next	= mlx5_esw_bridge_debugfs_next,
+	.stop	= mlx5_esw_bridge_debugfs_stop,
+	.show	= mlx5_esw_bridge_debugfs_show,
+};
+DEFINE_SEQ_ATTRIBUTE(mlx5_esw_bridge_debugfs);
+
+static void *mlx5_esw_bridge_debugfs_start(struct seq_file *seq, loff_t *pos)
+{
+	struct mlx5_esw_bridge *bridge = seq->private;
+
+	rtnl_lock();
+	return *pos ? seq_list_start(&bridge->fdb_list, *pos - 1) : SEQ_START_TOKEN;
+}
+
+static void *mlx5_esw_bridge_debugfs_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	struct mlx5_esw_bridge *bridge = seq->private;
+
+	return seq_list_next(v == SEQ_START_TOKEN ? &bridge->fdb_list : v, &bridge->fdb_list, pos);
+}
+
+static void mlx5_esw_bridge_debugfs_stop(struct seq_file *seq, void *v)
+{
+	rtnl_unlock();
+}
+
+static int mlx5_esw_bridge_debugfs_show(struct seq_file *seq, void *v)
+{
+	struct mlx5_esw_bridge_fdb_entry *entry;
+	u64 packets, bytes, lastuse;
+
+	if (v == SEQ_START_TOKEN) {
+		seq_printf(seq, "%-16s %-17s %4s %20s %20s %20s %5s\n",
+			   "DEV", "MAC", "VLAN", "PACKETS", "BYTES", "LASTUSE", "FLAGS");
+		return 0;
+	}
+
+	entry = list_entry(v, struct mlx5_esw_bridge_fdb_entry, list);
+	mlx5_fc_query_cached_raw(entry->ingress_counter, &bytes, &packets, &lastuse);
+	seq_printf(seq, "%-16s %-17pM %4d %20llu %20llu %20llu %#5x\n",
+		   entry->dev->name, entry->key.addr, entry->key.vid, packets, bytes, lastuse,
+		   entry->flags);
+	return 0;
+}
+
+void mlx5_esw_bridge_debugfs_init(struct net_device *br_netdev, struct mlx5_esw_bridge *bridge)
+{
+	if (!bridge->br_offloads->debugfs_root)
+		return;
+
+	bridge->debugfs_dir = debugfs_create_dir(br_netdev->name,
+						 bridge->br_offloads->debugfs_root);
+	debugfs_create_file("fdb", 0400, bridge->debugfs_dir, bridge,
+			    &mlx5_esw_bridge_debugfs_fops);
+}
+
+void mlx5_esw_bridge_debugfs_cleanup(struct mlx5_esw_bridge *bridge)
+{
+	debugfs_remove_recursive(bridge->debugfs_dir);
+	bridge->debugfs_dir = NULL;
+}
+
+void mlx5_esw_bridge_debugfs_offloads_init(struct mlx5_esw_bridge_offloads *br_offloads)
+{
+	if (!br_offloads->esw->debugfs_root)
+		return;
+
+	br_offloads->debugfs_root = debugfs_create_dir("bridge", br_offloads->esw->debugfs_root);
+}
+
+void mlx5_esw_bridge_debugfs_offloads_cleanup(struct mlx5_esw_bridge_offloads *br_offloads)
+{
+	debugfs_remove_recursive(br_offloads->debugfs_root);
+	br_offloads->debugfs_root = NULL;
+}