1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/* Copyright 2015 Freescale Semiconductor Inc.
* Copyright 2018-2019 NXP
*/
#include <linux/module.h>
#include <linux/debugfs.h>
#include "dpaa2-eth.h"
#include "dpaa2-eth-debugfs.h"
#define DPAA2_ETH_DBG_ROOT "dpaa2-eth"
static struct dentry *dpaa2_dbg_root;
static int dpaa2_dbg_cpu_show(struct seq_file *file, void *offset)
{
struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;
struct rtnl_link_stats64 *stats;
struct dpaa2_eth_drv_stats *extras;
int i;
seq_printf(file, "Per-CPU stats for %s\n", priv->net_dev->name);
seq_printf(file, "%s%16s%16s%16s%16s%16s%16s%16s%16s%16s\n",
"CPU", "Rx", "Rx Err", "Rx SG", "Tx", "Tx Err", "Tx conf",
"Tx SG", "Tx realloc", "Enq busy");
for_each_online_cpu(i) {
stats = per_cpu_ptr(priv->percpu_stats, i);
extras = per_cpu_ptr(priv->percpu_extras, i);
seq_printf(file, "%3d%16llu%16llu%16llu%16llu%16llu%16llu%16llu%16llu%16llu\n",
i,
stats->rx_packets,
stats->rx_errors,
extras->rx_sg_frames,
stats->tx_packets,
stats->tx_errors,
extras->tx_conf_frames,
extras->tx_sg_frames,
extras->tx_reallocs,
extras->tx_portal_busy);
}
return 0;
}
static int dpaa2_dbg_cpu_open(struct inode *inode, struct file *file)
{
int err;
struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)inode->i_private;
err = single_open(file, dpaa2_dbg_cpu_show, priv);
if (err < 0)
netdev_err(priv->net_dev, "single_open() failed\n");
return err;
}
static const struct file_operations dpaa2_dbg_cpu_ops = {
.open = dpaa2_dbg_cpu_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static char *fq_type_to_str(struct dpaa2_eth_fq *fq)
{
switch (fq->type) {
case DPAA2_RX_FQ:
return "Rx";
case DPAA2_TX_CONF_FQ:
return "Tx conf";
default:
return "N/A";
}
}
static int dpaa2_dbg_fqs_show(struct seq_file *file, void *offset)
{
struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;
struct dpaa2_eth_fq *fq;
u32 fcnt, bcnt;
int i, err;
seq_printf(file, "FQ stats for %s:\n", priv->net_dev->name);
seq_printf(file, "%s%16s%16s%16s%16s\n",
"VFQID", "CPU", "Type", "Frames", "Pending frames");
for (i = 0; i < priv->num_fqs; i++) {
fq = &priv->fq[i];
err = dpaa2_io_query_fq_count(NULL, fq->fqid, &fcnt, &bcnt);
if (err)
fcnt = 0;
seq_printf(file, "%5d%16d%16s%16llu%16u\n",
fq->fqid,
fq->target_cpu,
fq_type_to_str(fq),
fq->stats.frames,
fcnt);
}
return 0;
}
static int dpaa2_dbg_fqs_open(struct inode *inode, struct file *file)
{
int err;
struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)inode->i_private;
err = single_open(file, dpaa2_dbg_fqs_show, priv);
if (err < 0)
netdev_err(priv->net_dev, "single_open() failed\n");
return err;
}
static const struct file_operations dpaa2_dbg_fq_ops = {
.open = dpaa2_dbg_fqs_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
static int dpaa2_dbg_ch_show(struct seq_file *file, void *offset)
{
struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;
struct dpaa2_eth_channel *ch;
int i;
seq_printf(file, "Channel stats for %s:\n", priv->net_dev->name);
seq_printf(file, "%s%16s%16s%16s%16s\n",
"CHID", "CPU", "Deq busy", "CDANs", "Buf count");
for (i = 0; i < priv->num_channels; i++) {
ch = priv->channel[i];
seq_printf(file, "%4d%16d%16llu%16llu%16d\n",
ch->ch_id,
ch->nctx.desired_cpu,
ch->stats.dequeue_portal_busy,
ch->stats.cdan,
ch->buf_count);
}
return 0;
}
static int dpaa2_dbg_ch_open(struct inode *inode, struct file *file)
{
int err;
struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)inode->i_private;
err = single_open(file, dpaa2_dbg_ch_show, priv);
if (err < 0)
netdev_err(priv->net_dev, "single_open() failed\n");
return err;
}
static const struct file_operations dpaa2_dbg_ch_ops = {
.open = dpaa2_dbg_ch_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
void dpaa2_dbg_add(struct dpaa2_eth_priv *priv)
{
struct dentry *dir;
/* Create a directory for the interface */
dir = debugfs_create_dir(priv->net_dev->name, dpaa2_dbg_root);
priv->dbg.dir = dir;
/* per-cpu stats file */
debugfs_create_file("cpu_stats", 0444, dir, priv, &dpaa2_dbg_cpu_ops);
/* per-fq stats file */
debugfs_create_file("fq_stats", 0444, dir, priv, &dpaa2_dbg_fq_ops);
/* per-fq stats file */
debugfs_create_file("ch_stats", 0444, dir, priv, &dpaa2_dbg_ch_ops);
}
void dpaa2_dbg_remove(struct dpaa2_eth_priv *priv)
{
debugfs_remove_recursive(priv->dbg.dir);
}
void dpaa2_eth_dbg_init(void)
{
dpaa2_dbg_root = debugfs_create_dir(DPAA2_ETH_DBG_ROOT, NULL);
pr_debug("DPAA2-ETH: debugfs created\n");
}
void dpaa2_eth_dbg_exit(void)
{
debugfs_remove(dpaa2_dbg_root);
}
|
