1// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
  2/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
  3
  4#include <linux/debugfs.h>
  5#include <linux/mlx5/fs.h>
  6#include "mlx5_vnet.h"
  7
  8static int tirn_show(struct seq_file *file, void *priv)
  9{
 10	struct mlx5_vdpa_net *ndev = file->private;
 11
 12	seq_printf(file, "0x%x\n", ndev->res.tirn);
 13	return 0;
 14}
 15
 16DEFINE_SHOW_ATTRIBUTE(tirn);
 17
 18void mlx5_vdpa_remove_tirn(struct mlx5_vdpa_net *ndev)
 19{
 20	if (ndev->debugfs)
 21		debugfs_remove(ndev->res.tirn_dent);
 22}
 23
 24void mlx5_vdpa_add_tirn(struct mlx5_vdpa_net *ndev)
 25{
 26	ndev->res.tirn_dent = debugfs_create_file("tirn", 0444, ndev->rx_dent,
 27						  ndev, &tirn_fops);
 28}
 29
 30static int rx_flow_table_show(struct seq_file *file, void *priv)
 31{
 32	struct mlx5_vdpa_net *ndev = file->private;
 33
 34	seq_printf(file, "0x%x\n", mlx5_flow_table_id(ndev->rxft));
 35	return 0;
 36}
 37
 38DEFINE_SHOW_ATTRIBUTE(rx_flow_table);
 39
 40void mlx5_vdpa_remove_rx_flow_table(struct mlx5_vdpa_net *ndev)
 41{
 42	if (ndev->debugfs)
 43		debugfs_remove(ndev->rx_table_dent);
 44}
 45
 46void mlx5_vdpa_add_rx_flow_table(struct mlx5_vdpa_net *ndev)
 47{
 48	ndev->rx_table_dent = debugfs_create_file("table_id", 0444, ndev->rx_dent,
 49						  ndev, &rx_flow_table_fops);
 50}
 51
 52#if defined(CONFIG_MLX5_VDPA_STEERING_DEBUG)
 53static int packets_show(struct seq_file *file, void *priv)
 54{
 55	struct mlx5_vdpa_counter *counter = file->private;
 56	u64 packets;
 57	u64 bytes;
 58	int err;
 59
 60	err = mlx5_fc_query(counter->mdev, counter->counter, &packets, &bytes);
 61	if (err)
 62		return err;
 63
 64	seq_printf(file, "0x%llx\n", packets);
 65	return 0;
 66}
 67
 68static int bytes_show(struct seq_file *file, void *priv)
 69{
 70	struct mlx5_vdpa_counter *counter = file->private;
 71	u64 packets;
 72	u64 bytes;
 73	int err;
 74
 75	err = mlx5_fc_query(counter->mdev, counter->counter, &packets, &bytes);
 76	if (err)
 77		return err;
 78
 79	seq_printf(file, "0x%llx\n", bytes);
 80	return 0;
 81}
 82
 83DEFINE_SHOW_ATTRIBUTE(packets);
 84DEFINE_SHOW_ATTRIBUTE(bytes);
 85
 86static void add_counter_node(struct mlx5_vdpa_counter *counter,
 87			     struct dentry *parent)
 88{
 89	debugfs_create_file("packets", 0444, parent, counter,
 90			    &packets_fops);
 91	debugfs_create_file("bytes", 0444, parent, counter,
 92			    &bytes_fops);
 93}
 94
 95void mlx5_vdpa_add_rx_counters(struct mlx5_vdpa_net *ndev,
 96			       struct macvlan_node *node)
 97{
 98	static const char *ut = "untagged";
 99	char vidstr[9];
100	u16 vid;
101
102	node->ucast_counter.mdev = ndev->mvdev.mdev;
103	node->mcast_counter.mdev = ndev->mvdev.mdev;
104	if (node->tagged) {
105		vid = key2vid(node->macvlan);
106		snprintf(vidstr, sizeof(vidstr), "0x%x", vid);
107	} else {
108		strcpy(vidstr, ut);
109	}
110
111	node->dent = debugfs_create_dir(vidstr, ndev->rx_dent);
112	if (IS_ERR(node->dent)) {
113		node->dent = NULL;
114		return;
115	}
116
117	node->ucast_counter.dent = debugfs_create_dir("ucast", node->dent);
118	if (IS_ERR(node->ucast_counter.dent))
119		return;
120
121	add_counter_node(&node->ucast_counter, node->ucast_counter.dent);
122
123	node->mcast_counter.dent = debugfs_create_dir("mcast", node->dent);
124	if (IS_ERR(node->mcast_counter.dent))
125		return;
126
127	add_counter_node(&node->mcast_counter, node->mcast_counter.dent);
128}
129
130void mlx5_vdpa_remove_rx_counters(struct mlx5_vdpa_net *ndev,
131				  struct macvlan_node *node)
132{
133	if (node->dent && ndev->debugfs)
134		debugfs_remove_recursive(node->dent);
135}
136#endif
137
138void mlx5_vdpa_add_debugfs(struct mlx5_vdpa_net *ndev)
139{
140	struct mlx5_core_dev *mdev;
141
142	mdev = ndev->mvdev.mdev;
143	ndev->debugfs = debugfs_create_dir(dev_name(&ndev->mvdev.vdev.dev),
144					   mlx5_debugfs_get_dev_root(mdev));
145	if (!IS_ERR(ndev->debugfs))
146		ndev->rx_dent = debugfs_create_dir("rx", ndev->debugfs);
147}
148
149void mlx5_vdpa_remove_debugfs(struct mlx5_vdpa_net *ndev)
150{
151	debugfs_remove_recursive(ndev->debugfs);
152	ndev->debugfs = NULL;
153}