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4
5#include <linux/module.h>
6#include <linux/debugfs.h>
7#include "dpaa2-eth.h"
8#include "dpaa2-eth-debugfs.h"
9
10#define DPAA2_ETH_DBG_ROOT "dpaa2-eth"
11
12static struct dentry *dpaa2_dbg_root;
13
14static int dpaa2_dbg_cpu_show(struct seq_file *file, void *offset)
15{
16 struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;
17 struct rtnl_link_stats64 *stats;
18 struct dpaa2_eth_drv_stats *extras;
19 int i;
20
21 seq_printf(file, "Per-CPU stats for %s\n", priv->net_dev->name);
22 seq_printf(file, "%s%16s%16s%16s%16s%16s%16s%16s%16s%16s\n",
23 "CPU", "Rx", "Rx Err", "Rx SG", "Tx", "Tx Err", "Tx conf",
24 "Tx SG", "Tx realloc", "Enq busy");
25
26 for_each_online_cpu(i) {
27 stats = per_cpu_ptr(priv->percpu_stats, i);
28 extras = per_cpu_ptr(priv->percpu_extras, i);
29 seq_printf(file, "%3d%16llu%16llu%16llu%16llu%16llu%16llu%16llu%16llu%16llu\n",
30 i,
31 stats->rx_packets,
32 stats->rx_errors,
33 extras->rx_sg_frames,
34 stats->tx_packets,
35 stats->tx_errors,
36 extras->tx_conf_frames,
37 extras->tx_sg_frames,
38 extras->tx_reallocs,
39 extras->tx_portal_busy);
40 }
41
42 return 0;
43}
44
45static int dpaa2_dbg_cpu_open(struct inode *inode, struct file *file)
46{
47 int err;
48 struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)inode->i_private;
49
50 err = single_open(file, dpaa2_dbg_cpu_show, priv);
51 if (err < 0)
52 netdev_err(priv->net_dev, "single_open() failed\n");
53
54 return err;
55}
56
57static const struct file_operations dpaa2_dbg_cpu_ops = {
58 .open = dpaa2_dbg_cpu_open,
59 .read = seq_read,
60 .llseek = seq_lseek,
61 .release = single_release,
62};
63
64static char *fq_type_to_str(struct dpaa2_eth_fq *fq)
65{
66 switch (fq->type) {
67 case DPAA2_RX_FQ:
68 return "Rx";
69 case DPAA2_TX_CONF_FQ:
70 return "Tx conf";
71 default:
72 return "N/A";
73 }
74}
75
76static int dpaa2_dbg_fqs_show(struct seq_file *file, void *offset)
77{
78 struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;
79 struct dpaa2_eth_fq *fq;
80 u32 fcnt, bcnt;
81 int i, err;
82
83 seq_printf(file, "FQ stats for %s:\n", priv->net_dev->name);
84 seq_printf(file, "%s%16s%16s%16s%16s\n",
85 "VFQID", "CPU", "Type", "Frames", "Pending frames");
86
87 for (i = 0; i < priv->num_fqs; i++) {
88 fq = &priv->fq[i];
89 err = dpaa2_io_query_fq_count(NULL, fq->fqid, &fcnt, &bcnt);
90 if (err)
91 fcnt = 0;
92
93 seq_printf(file, "%5d%16d%16s%16llu%16u\n",
94 fq->fqid,
95 fq->target_cpu,
96 fq_type_to_str(fq),
97 fq->stats.frames,
98 fcnt);
99 }
100
101 return 0;
102}
103
104static int dpaa2_dbg_fqs_open(struct inode *inode, struct file *file)
105{
106 int err;
107 struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)inode->i_private;
108
109 err = single_open(file, dpaa2_dbg_fqs_show, priv);
110 if (err < 0)
111 netdev_err(priv->net_dev, "single_open() failed\n");
112
113 return err;
114}
115
116static const struct file_operations dpaa2_dbg_fq_ops = {
117 .open = dpaa2_dbg_fqs_open,
118 .read = seq_read,
119 .llseek = seq_lseek,
120 .release = single_release,
121};
122
123static int dpaa2_dbg_ch_show(struct seq_file *file, void *offset)
124{
125 struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;
126 struct dpaa2_eth_channel *ch;
127 int i;
128
129 seq_printf(file, "Channel stats for %s:\n", priv->net_dev->name);
130 seq_printf(file, "%s%16s%16s%16s%16s\n",
131 "CHID", "CPU", "Deq busy", "CDANs", "Buf count");
132
133 for (i = 0; i < priv->num_channels; i++) {
134 ch = priv->channel[i];
135 seq_printf(file, "%4d%16d%16llu%16llu%16d\n",
136 ch->ch_id,
137 ch->nctx.desired_cpu,
138 ch->stats.dequeue_portal_busy,
139 ch->stats.cdan,
140 ch->buf_count);
141 }
142
143 return 0;
144}
145
146static int dpaa2_dbg_ch_open(struct inode *inode, struct file *file)
147{
148 int err;
149 struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)inode->i_private;
150
151 err = single_open(file, dpaa2_dbg_ch_show, priv);
152 if (err < 0)
153 netdev_err(priv->net_dev, "single_open() failed\n");
154
155 return err;
156}
157
158static const struct file_operations dpaa2_dbg_ch_ops = {
159 .open = dpaa2_dbg_ch_open,
160 .read = seq_read,
161 .llseek = seq_lseek,
162 .release = single_release,
163};
164
165void dpaa2_dbg_add(struct dpaa2_eth_priv *priv)
166{
167 if (!dpaa2_dbg_root)
168 return;
169
170
171 priv->dbg.dir = debugfs_create_dir(priv->net_dev->name,
172 dpaa2_dbg_root);
173 if (!priv->dbg.dir) {
174 netdev_err(priv->net_dev, "debugfs_create_dir() failed\n");
175 return;
176 }
177
178
179 priv->dbg.cpu_stats = debugfs_create_file("cpu_stats", 0444,
180 priv->dbg.dir, priv,
181 &dpaa2_dbg_cpu_ops);
182 if (!priv->dbg.cpu_stats) {
183 netdev_err(priv->net_dev, "debugfs_create_file() failed\n");
184 goto err_cpu_stats;
185 }
186
187
188 priv->dbg.fq_stats = debugfs_create_file("fq_stats", 0444,
189 priv->dbg.dir, priv,
190 &dpaa2_dbg_fq_ops);
191 if (!priv->dbg.fq_stats) {
192 netdev_err(priv->net_dev, "debugfs_create_file() failed\n");
193 goto err_fq_stats;
194 }
195
196
197 priv->dbg.ch_stats = debugfs_create_file("ch_stats", 0444,
198 priv->dbg.dir, priv,
199 &dpaa2_dbg_ch_ops);
200 if (!priv->dbg.fq_stats) {
201 netdev_err(priv->net_dev, "debugfs_create_file() failed\n");
202 goto err_ch_stats;
203 }
204
205 return;
206
207err_ch_stats:
208 debugfs_remove(priv->dbg.fq_stats);
209err_fq_stats:
210 debugfs_remove(priv->dbg.cpu_stats);
211err_cpu_stats:
212 debugfs_remove(priv->dbg.dir);
213}
214
215void dpaa2_dbg_remove(struct dpaa2_eth_priv *priv)
216{
217 debugfs_remove(priv->dbg.fq_stats);
218 debugfs_remove(priv->dbg.ch_stats);
219 debugfs_remove(priv->dbg.cpu_stats);
220 debugfs_remove(priv->dbg.dir);
221}
222
223void dpaa2_eth_dbg_init(void)
224{
225 dpaa2_dbg_root = debugfs_create_dir(DPAA2_ETH_DBG_ROOT, NULL);
226 if (!dpaa2_dbg_root) {
227 pr_err("DPAA2-ETH: debugfs create failed\n");
228 return;
229 }
230
231 pr_debug("DPAA2-ETH: debugfs created\n");
232}
233
234void dpaa2_eth_dbg_exit(void)
235{
236 debugfs_remove(dpaa2_dbg_root);
237}
238
