1 | // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) |
2 | /* Copyright 2015 Freescale Semiconductor Inc. |
3 | * Copyright 2018-2019 NXP |
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 | |
12 | static struct dentry *dpaa2_dbg_root; |
13 | |
14 | static 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 *; |
19 | int i; |
20 | |
21 | seq_printf(m: file, fmt: "Per-CPU stats for %s\n" , priv->net_dev->name); |
22 | seq_printf(m: file, fmt: "%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 converted to SG" , "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(m: file, fmt: "%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_converted_sg_frames, |
39 | extras->tx_portal_busy); |
40 | } |
41 | |
42 | return 0; |
43 | } |
44 | |
45 | DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_cpu); |
46 | |
47 | static char *fq_type_to_str(struct dpaa2_eth_fq *fq) |
48 | { |
49 | switch (fq->type) { |
50 | case DPAA2_RX_FQ: |
51 | return "Rx" ; |
52 | case DPAA2_TX_CONF_FQ: |
53 | return "Tx conf" ; |
54 | default: |
55 | return "N/A" ; |
56 | } |
57 | } |
58 | |
59 | static int dpaa2_dbg_fqs_show(struct seq_file *file, void *offset) |
60 | { |
61 | struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private; |
62 | struct dpaa2_eth_fq *fq; |
63 | u32 fcnt, bcnt; |
64 | int i, err; |
65 | |
66 | seq_printf(m: file, fmt: "FQ stats for %s:\n" , priv->net_dev->name); |
67 | seq_printf(m: file, fmt: "%s%16s%16s%16s%16s%16s\n" , |
68 | "VFQID" , "CPU" , "TC" , "Type" , "Frames" , "Pending frames" ); |
69 | |
70 | for (i = 0; i < priv->num_fqs; i++) { |
71 | fq = &priv->fq[i]; |
72 | err = dpaa2_io_query_fq_count(NULL, fqid: fq->fqid, fcnt: &fcnt, bcnt: &bcnt); |
73 | if (err) |
74 | fcnt = 0; |
75 | |
76 | /* Skip FQs with no traffic */ |
77 | if (!fq->stats.frames && !fcnt) |
78 | continue; |
79 | |
80 | seq_printf(m: file, fmt: "%5d%16d%16d%16s%16llu%16u\n" , |
81 | fq->fqid, |
82 | fq->target_cpu, |
83 | fq->tc, |
84 | fq_type_to_str(fq), |
85 | fq->stats.frames, |
86 | fcnt); |
87 | } |
88 | |
89 | return 0; |
90 | } |
91 | |
92 | DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_fqs); |
93 | |
94 | static int dpaa2_dbg_ch_show(struct seq_file *file, void *offset) |
95 | { |
96 | struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private; |
97 | struct dpaa2_eth_channel *ch; |
98 | int i; |
99 | |
100 | seq_printf(m: file, fmt: "Channel stats for %s:\n" , priv->net_dev->name); |
101 | seq_printf(m: file, fmt: "%s %5s%16s%16s%16s%16s%16s%16s\n" , |
102 | "IDX" , "CHID" , "CPU" , "Deq busy" , "Frames" , "CDANs" , |
103 | "Avg Frm/CDAN" , "Buf count" ); |
104 | |
105 | for (i = 0; i < priv->num_channels; i++) { |
106 | ch = priv->channel[i]; |
107 | seq_printf(m: file, fmt: "%3s%d%6d%16d%16llu%16llu%16llu%16llu%16d\n" , |
108 | "CH#" , i, ch->ch_id, |
109 | ch->nctx.desired_cpu, |
110 | ch->stats.dequeue_portal_busy, |
111 | ch->stats.frames, |
112 | ch->stats.cdan, |
113 | div64_u64(dividend: ch->stats.frames, divisor: ch->stats.cdan), |
114 | ch->buf_count); |
115 | } |
116 | |
117 | return 0; |
118 | } |
119 | |
120 | DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_ch); |
121 | |
122 | static int dpaa2_dbg_bp_show(struct seq_file *file, void *offset) |
123 | { |
124 | struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private; |
125 | int i, j, num_queues, buf_cnt; |
126 | struct dpaa2_eth_bp *bp; |
127 | char ch_name[10]; |
128 | int err; |
129 | |
130 | /* Print out the header */ |
131 | seq_printf(m: file, fmt: "Buffer pool info for %s:\n" , priv->net_dev->name); |
132 | seq_printf(m: file, fmt: "%s %10s%15s" , "IDX" , "BPID" , "Buf count" ); |
133 | num_queues = dpaa2_eth_queue_count(priv); |
134 | for (i = 0; i < num_queues; i++) { |
135 | snprintf(buf: ch_name, size: sizeof(ch_name), fmt: "CH#%d" , i); |
136 | seq_printf(m: file, fmt: "%10s" , ch_name); |
137 | } |
138 | seq_printf(m: file, fmt: "\n" ); |
139 | |
140 | /* For each buffer pool, print out its BPID, the number of buffers in |
141 | * that buffer pool and the channels which are using it. |
142 | */ |
143 | for (i = 0; i < priv->num_bps; i++) { |
144 | bp = priv->bp[i]; |
145 | |
146 | err = dpaa2_io_query_bp_count(NULL, bpid: bp->bpid, num: &buf_cnt); |
147 | if (err) { |
148 | netdev_warn(dev: priv->net_dev, format: "Buffer count query error %d\n" , err); |
149 | return err; |
150 | } |
151 | |
152 | seq_printf(m: file, fmt: "%3s%d%10d%15d" , "BP#" , i, bp->bpid, buf_cnt); |
153 | for (j = 0; j < num_queues; j++) { |
154 | if (priv->channel[j]->bp == bp) |
155 | seq_printf(m: file, fmt: "%10s" , "x" ); |
156 | else |
157 | seq_printf(m: file, fmt: "%10s" , "" ); |
158 | } |
159 | seq_printf(m: file, fmt: "\n" ); |
160 | } |
161 | |
162 | return 0; |
163 | } |
164 | |
165 | DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_bp); |
166 | |
167 | void dpaa2_dbg_add(struct dpaa2_eth_priv *priv) |
168 | { |
169 | struct fsl_mc_device *dpni_dev; |
170 | struct dentry *dir; |
171 | char name[10]; |
172 | |
173 | /* Create a directory for the interface */ |
174 | dpni_dev = to_fsl_mc_device(priv->net_dev->dev.parent); |
175 | snprintf(buf: name, size: 10, fmt: "dpni.%d" , dpni_dev->obj_desc.id); |
176 | dir = debugfs_create_dir(name, parent: dpaa2_dbg_root); |
177 | priv->dbg.dir = dir; |
178 | |
179 | /* per-cpu stats file */ |
180 | debugfs_create_file(name: "cpu_stats" , mode: 0444, parent: dir, data: priv, fops: &dpaa2_dbg_cpu_fops); |
181 | |
182 | /* per-fq stats file */ |
183 | debugfs_create_file(name: "fq_stats" , mode: 0444, parent: dir, data: priv, fops: &dpaa2_dbg_fqs_fops); |
184 | |
185 | /* per-fq stats file */ |
186 | debugfs_create_file(name: "ch_stats" , mode: 0444, parent: dir, data: priv, fops: &dpaa2_dbg_ch_fops); |
187 | |
188 | /* per buffer pool stats file */ |
189 | debugfs_create_file(name: "bp_stats" , mode: 0444, parent: dir, data: priv, fops: &dpaa2_dbg_bp_fops); |
190 | |
191 | } |
192 | |
193 | void dpaa2_dbg_remove(struct dpaa2_eth_priv *priv) |
194 | { |
195 | debugfs_remove_recursive(dentry: priv->dbg.dir); |
196 | } |
197 | |
198 | void dpaa2_eth_dbg_init(void) |
199 | { |
200 | dpaa2_dbg_root = debugfs_create_dir(DPAA2_ETH_DBG_ROOT, NULL); |
201 | pr_debug("DPAA2-ETH: debugfs created\n" ); |
202 | } |
203 | |
204 | void dpaa2_eth_dbg_exit(void) |
205 | { |
206 | debugfs_remove(dentry: dpaa2_dbg_root); |
207 | } |
208 | |