This source file includes following definitions.
- hns3_dbg_queue_info
- hns3_dbg_queue_map
- hns3_dbg_bd_info
- hns3_dbg_help
- hns3_dbg_cmd_read
- hns3_dbg_cmd_write
- hns3_dbg_init
- hns3_dbg_uninit
- hns3_dbg_register_debugfs
- hns3_dbg_unregister_debugfs
1
2
3
4 #include <linux/debugfs.h>
5 #include <linux/device.h>
6
7 #include "hnae3.h"
8 #include "hns3_enet.h"
9
10 #define HNS3_DBG_READ_LEN 256
11 #define HNS3_DBG_WRITE_LEN 1024
12
13 static struct dentry *hns3_dbgfs_root;
14
15 static int hns3_dbg_queue_info(struct hnae3_handle *h,
16 const char *cmd_buf)
17 {
18 struct hns3_nic_priv *priv = h->priv;
19 struct hns3_nic_ring_data *ring_data;
20 struct hns3_enet_ring *ring;
21 u32 base_add_l, base_add_h;
22 u32 queue_num, queue_max;
23 u32 value, i = 0;
24 int cnt;
25
26 if (!priv->ring_data) {
27 dev_err(&h->pdev->dev, "ring_data is NULL\n");
28 return -EFAULT;
29 }
30
31 queue_max = h->kinfo.num_tqps;
32 cnt = kstrtouint(&cmd_buf[11], 0, &queue_num);
33 if (cnt)
34 queue_num = 0;
35 else
36 queue_max = queue_num + 1;
37
38 dev_info(&h->pdev->dev, "queue info\n");
39
40 if (queue_num >= h->kinfo.num_tqps) {
41 dev_err(&h->pdev->dev,
42 "Queue number(%u) is out of range(0-%u)\n", queue_num,
43 h->kinfo.num_tqps - 1);
44 return -EINVAL;
45 }
46
47 ring_data = priv->ring_data;
48 for (i = queue_num; i < queue_max; i++) {
49
50
51
52
53 if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
54 test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
55 return -EPERM;
56
57 ring = ring_data[(u32)(i + h->kinfo.num_tqps)].ring;
58 base_add_h = readl_relaxed(ring->tqp->io_base +
59 HNS3_RING_RX_RING_BASEADDR_H_REG);
60 base_add_l = readl_relaxed(ring->tqp->io_base +
61 HNS3_RING_RX_RING_BASEADDR_L_REG);
62 dev_info(&h->pdev->dev, "RX(%d) BASE ADD: 0x%08x%08x\n", i,
63 base_add_h, base_add_l);
64
65 value = readl_relaxed(ring->tqp->io_base +
66 HNS3_RING_RX_RING_BD_NUM_REG);
67 dev_info(&h->pdev->dev, "RX(%d) RING BD NUM: %u\n", i, value);
68
69 value = readl_relaxed(ring->tqp->io_base +
70 HNS3_RING_RX_RING_BD_LEN_REG);
71 dev_info(&h->pdev->dev, "RX(%d) RING BD LEN: %u\n", i, value);
72
73 value = readl_relaxed(ring->tqp->io_base +
74 HNS3_RING_RX_RING_TAIL_REG);
75 dev_info(&h->pdev->dev, "RX(%d) RING TAIL: %u\n", i, value);
76
77 value = readl_relaxed(ring->tqp->io_base +
78 HNS3_RING_RX_RING_HEAD_REG);
79 dev_info(&h->pdev->dev, "RX(%d) RING HEAD: %u\n", i, value);
80
81 value = readl_relaxed(ring->tqp->io_base +
82 HNS3_RING_RX_RING_FBDNUM_REG);
83 dev_info(&h->pdev->dev, "RX(%d) RING FBDNUM: %u\n", i, value);
84
85 value = readl_relaxed(ring->tqp->io_base +
86 HNS3_RING_RX_RING_PKTNUM_RECORD_REG);
87 dev_info(&h->pdev->dev, "RX(%d) RING PKTNUM: %u\n", i, value);
88
89 ring = ring_data[i].ring;
90 base_add_h = readl_relaxed(ring->tqp->io_base +
91 HNS3_RING_TX_RING_BASEADDR_H_REG);
92 base_add_l = readl_relaxed(ring->tqp->io_base +
93 HNS3_RING_TX_RING_BASEADDR_L_REG);
94 dev_info(&h->pdev->dev, "TX(%d) BASE ADD: 0x%08x%08x\n", i,
95 base_add_h, base_add_l);
96
97 value = readl_relaxed(ring->tqp->io_base +
98 HNS3_RING_TX_RING_BD_NUM_REG);
99 dev_info(&h->pdev->dev, "TX(%d) RING BD NUM: %u\n", i, value);
100
101 value = readl_relaxed(ring->tqp->io_base +
102 HNS3_RING_TX_RING_TC_REG);
103 dev_info(&h->pdev->dev, "TX(%d) RING TC: %u\n", i, value);
104
105 value = readl_relaxed(ring->tqp->io_base +
106 HNS3_RING_TX_RING_TAIL_REG);
107 dev_info(&h->pdev->dev, "TX(%d) RING TAIL: %u\n", i, value);
108
109 value = readl_relaxed(ring->tqp->io_base +
110 HNS3_RING_TX_RING_HEAD_REG);
111 dev_info(&h->pdev->dev, "TX(%d) RING HEAD: %u\n", i, value);
112
113 value = readl_relaxed(ring->tqp->io_base +
114 HNS3_RING_TX_RING_FBDNUM_REG);
115 dev_info(&h->pdev->dev, "TX(%d) RING FBDNUM: %u\n", i, value);
116
117 value = readl_relaxed(ring->tqp->io_base +
118 HNS3_RING_TX_RING_OFFSET_REG);
119 dev_info(&h->pdev->dev, "TX(%d) RING OFFSET: %u\n", i, value);
120
121 value = readl_relaxed(ring->tqp->io_base +
122 HNS3_RING_TX_RING_PKTNUM_RECORD_REG);
123 dev_info(&h->pdev->dev, "TX(%d) RING PKTNUM: %u\n\n", i,
124 value);
125 }
126
127 return 0;
128 }
129
130 static int hns3_dbg_queue_map(struct hnae3_handle *h)
131 {
132 struct hns3_nic_priv *priv = h->priv;
133 struct hns3_nic_ring_data *ring_data;
134 int i;
135
136 if (!h->ae_algo->ops->get_global_queue_id)
137 return -EOPNOTSUPP;
138
139 dev_info(&h->pdev->dev, "map info for queue id and vector id\n");
140 dev_info(&h->pdev->dev,
141 "local queue id | global queue id | vector id\n");
142 for (i = 0; i < h->kinfo.num_tqps; i++) {
143 u16 global_qid;
144
145 global_qid = h->ae_algo->ops->get_global_queue_id(h, i);
146 ring_data = &priv->ring_data[i];
147 if (!ring_data || !ring_data->ring ||
148 !ring_data->ring->tqp_vector)
149 continue;
150
151 dev_info(&h->pdev->dev,
152 " %4d %4d %4d\n",
153 i, global_qid,
154 ring_data->ring->tqp_vector->vector_irq);
155 }
156
157 return 0;
158 }
159
160 static int hns3_dbg_bd_info(struct hnae3_handle *h, const char *cmd_buf)
161 {
162 struct hns3_nic_priv *priv = h->priv;
163 struct hns3_nic_ring_data *ring_data;
164 struct hns3_desc *rx_desc, *tx_desc;
165 struct device *dev = &h->pdev->dev;
166 struct hns3_enet_ring *ring;
167 u32 tx_index, rx_index;
168 u32 q_num, value;
169 dma_addr_t addr;
170 int cnt;
171
172 cnt = sscanf(&cmd_buf[8], "%u %u", &q_num, &tx_index);
173 if (cnt == 2) {
174 rx_index = tx_index;
175 } else if (cnt != 1) {
176 dev_err(dev, "bd info: bad command string, cnt=%d\n", cnt);
177 return -EINVAL;
178 }
179
180 if (q_num >= h->kinfo.num_tqps) {
181 dev_err(dev, "Queue number(%u) is out of range(0-%u)\n", q_num,
182 h->kinfo.num_tqps - 1);
183 return -EINVAL;
184 }
185
186 ring_data = priv->ring_data;
187 ring = ring_data[q_num].ring;
188 value = readl_relaxed(ring->tqp->io_base + HNS3_RING_TX_RING_TAIL_REG);
189 tx_index = (cnt == 1) ? value : tx_index;
190
191 if (tx_index >= ring->desc_num) {
192 dev_err(dev, "bd index(%u) is out of range(0-%u)\n", tx_index,
193 ring->desc_num - 1);
194 return -EINVAL;
195 }
196
197 tx_desc = &ring->desc[tx_index];
198 addr = le64_to_cpu(tx_desc->addr);
199 dev_info(dev, "TX Queue Num: %u, BD Index: %u\n", q_num, tx_index);
200 dev_info(dev, "(TX)addr: %pad\n", &addr);
201 dev_info(dev, "(TX)vlan_tag: %u\n", tx_desc->tx.vlan_tag);
202 dev_info(dev, "(TX)send_size: %u\n", tx_desc->tx.send_size);
203 dev_info(dev, "(TX)vlan_tso: %u\n", tx_desc->tx.type_cs_vlan_tso);
204 dev_info(dev, "(TX)l2_len: %u\n", tx_desc->tx.l2_len);
205 dev_info(dev, "(TX)l3_len: %u\n", tx_desc->tx.l3_len);
206 dev_info(dev, "(TX)l4_len: %u\n", tx_desc->tx.l4_len);
207 dev_info(dev, "(TX)vlan_tag: %u\n", tx_desc->tx.outer_vlan_tag);
208 dev_info(dev, "(TX)tv: %u\n", tx_desc->tx.tv);
209 dev_info(dev, "(TX)vlan_msec: %u\n", tx_desc->tx.ol_type_vlan_msec);
210 dev_info(dev, "(TX)ol2_len: %u\n", tx_desc->tx.ol2_len);
211 dev_info(dev, "(TX)ol3_len: %u\n", tx_desc->tx.ol3_len);
212 dev_info(dev, "(TX)ol4_len: %u\n", tx_desc->tx.ol4_len);
213 dev_info(dev, "(TX)paylen: %u\n", tx_desc->tx.paylen);
214 dev_info(dev, "(TX)vld_ra_ri: %u\n", tx_desc->tx.bdtp_fe_sc_vld_ra_ri);
215 dev_info(dev, "(TX)mss: %u\n", tx_desc->tx.mss);
216
217 ring = ring_data[q_num + h->kinfo.num_tqps].ring;
218 value = readl_relaxed(ring->tqp->io_base + HNS3_RING_RX_RING_TAIL_REG);
219 rx_index = (cnt == 1) ? value : tx_index;
220 rx_desc = &ring->desc[rx_index];
221
222 addr = le64_to_cpu(rx_desc->addr);
223 dev_info(dev, "RX Queue Num: %u, BD Index: %u\n", q_num, rx_index);
224 dev_info(dev, "(RX)addr: %pad\n", &addr);
225 dev_info(dev, "(RX)l234_info: %u\n", rx_desc->rx.l234_info);
226 dev_info(dev, "(RX)pkt_len: %u\n", rx_desc->rx.pkt_len);
227 dev_info(dev, "(RX)size: %u\n", rx_desc->rx.size);
228 dev_info(dev, "(RX)rss_hash: %u\n", rx_desc->rx.rss_hash);
229 dev_info(dev, "(RX)fd_id: %u\n", rx_desc->rx.fd_id);
230 dev_info(dev, "(RX)vlan_tag: %u\n", rx_desc->rx.vlan_tag);
231 dev_info(dev, "(RX)o_dm_vlan_id_fb: %u\n", rx_desc->rx.o_dm_vlan_id_fb);
232 dev_info(dev, "(RX)ot_vlan_tag: %u\n", rx_desc->rx.ot_vlan_tag);
233 dev_info(dev, "(RX)bd_base_info: %u\n", rx_desc->rx.bd_base_info);
234
235 return 0;
236 }
237
238 static void hns3_dbg_help(struct hnae3_handle *h)
239 {
240 #define HNS3_DBG_BUF_LEN 256
241
242 char printf_buf[HNS3_DBG_BUF_LEN];
243
244 dev_info(&h->pdev->dev, "available commands\n");
245 dev_info(&h->pdev->dev, "queue info <number>\n");
246 dev_info(&h->pdev->dev, "queue map\n");
247 dev_info(&h->pdev->dev, "bd info <q_num> <bd index>\n");
248
249 if (!hns3_is_phys_func(h->pdev))
250 return;
251
252 dev_info(&h->pdev->dev, "dump fd tcam\n");
253 dev_info(&h->pdev->dev, "dump tc\n");
254 dev_info(&h->pdev->dev, "dump tm map <q_num>\n");
255 dev_info(&h->pdev->dev, "dump tm\n");
256 dev_info(&h->pdev->dev, "dump qos pause cfg\n");
257 dev_info(&h->pdev->dev, "dump qos pri map\n");
258 dev_info(&h->pdev->dev, "dump qos buf cfg\n");
259 dev_info(&h->pdev->dev, "dump mng tbl\n");
260 dev_info(&h->pdev->dev, "dump reset info\n");
261 dev_info(&h->pdev->dev, "dump m7 info\n");
262 dev_info(&h->pdev->dev, "dump ncl_config <offset> <length>(in hex)\n");
263 dev_info(&h->pdev->dev, "dump mac tnl status\n");
264
265 memset(printf_buf, 0, HNS3_DBG_BUF_LEN);
266 strncat(printf_buf, "dump reg [[bios common] [ssu <port_id>]",
267 HNS3_DBG_BUF_LEN - 1);
268 strncat(printf_buf + strlen(printf_buf),
269 " [igu egu <port_id>] [rpu <tc_queue_num>]",
270 HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
271 strncat(printf_buf + strlen(printf_buf),
272 " [rtc] [ppp] [rcb] [tqp <queue_num>]]\n",
273 HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
274 dev_info(&h->pdev->dev, "%s", printf_buf);
275
276 memset(printf_buf, 0, HNS3_DBG_BUF_LEN);
277 strncat(printf_buf, "dump reg dcb <port_id> <pri_id> <pg_id>",
278 HNS3_DBG_BUF_LEN - 1);
279 strncat(printf_buf + strlen(printf_buf), " <rq_id> <nq_id> <qset_id>\n",
280 HNS3_DBG_BUF_LEN - strlen(printf_buf) - 1);
281 dev_info(&h->pdev->dev, "%s", printf_buf);
282 }
283
284 static ssize_t hns3_dbg_cmd_read(struct file *filp, char __user *buffer,
285 size_t count, loff_t *ppos)
286 {
287 int uncopy_bytes;
288 char *buf;
289 int len;
290
291 if (*ppos != 0)
292 return 0;
293
294 if (count < HNS3_DBG_READ_LEN)
295 return -ENOSPC;
296
297 buf = kzalloc(HNS3_DBG_READ_LEN, GFP_KERNEL);
298 if (!buf)
299 return -ENOMEM;
300
301 len = snprintf(buf, HNS3_DBG_READ_LEN, "%s\n",
302 "Please echo help to cmd to get help information");
303 uncopy_bytes = copy_to_user(buffer, buf, len);
304
305 kfree(buf);
306
307 if (uncopy_bytes)
308 return -EFAULT;
309
310 return (*ppos = len);
311 }
312
313 static ssize_t hns3_dbg_cmd_write(struct file *filp, const char __user *buffer,
314 size_t count, loff_t *ppos)
315 {
316 struct hnae3_handle *handle = filp->private_data;
317 struct hns3_nic_priv *priv = handle->priv;
318 char *cmd_buf, *cmd_buf_tmp;
319 int uncopied_bytes;
320 int ret = 0;
321
322 if (*ppos != 0)
323 return 0;
324
325
326 if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) ||
327 test_bit(HNS3_NIC_STATE_RESETTING, &priv->state))
328 return 0;
329
330 if (count > HNS3_DBG_WRITE_LEN)
331 return -ENOSPC;
332
333 cmd_buf = kzalloc(count + 1, GFP_KERNEL);
334 if (!cmd_buf)
335 return count;
336
337 uncopied_bytes = copy_from_user(cmd_buf, buffer, count);
338 if (uncopied_bytes) {
339 kfree(cmd_buf);
340 return -EFAULT;
341 }
342
343 cmd_buf[count] = '\0';
344
345 cmd_buf_tmp = strchr(cmd_buf, '\n');
346 if (cmd_buf_tmp) {
347 *cmd_buf_tmp = '\0';
348 count = cmd_buf_tmp - cmd_buf + 1;
349 }
350
351 if (strncmp(cmd_buf, "help", 4) == 0)
352 hns3_dbg_help(handle);
353 else if (strncmp(cmd_buf, "queue info", 10) == 0)
354 ret = hns3_dbg_queue_info(handle, cmd_buf);
355 else if (strncmp(cmd_buf, "queue map", 9) == 0)
356 ret = hns3_dbg_queue_map(handle);
357 else if (strncmp(cmd_buf, "bd info", 7) == 0)
358 ret = hns3_dbg_bd_info(handle, cmd_buf);
359 else if (handle->ae_algo->ops->dbg_run_cmd)
360 ret = handle->ae_algo->ops->dbg_run_cmd(handle, cmd_buf);
361 else
362 ret = -EOPNOTSUPP;
363
364 if (ret)
365 hns3_dbg_help(handle);
366
367 kfree(cmd_buf);
368 cmd_buf = NULL;
369
370 return count;
371 }
372
373 static const struct file_operations hns3_dbg_cmd_fops = {
374 .owner = THIS_MODULE,
375 .open = simple_open,
376 .read = hns3_dbg_cmd_read,
377 .write = hns3_dbg_cmd_write,
378 };
379
380 void hns3_dbg_init(struct hnae3_handle *handle)
381 {
382 const char *name = pci_name(handle->pdev);
383
384 handle->hnae3_dbgfs = debugfs_create_dir(name, hns3_dbgfs_root);
385
386 debugfs_create_file("cmd", 0600, handle->hnae3_dbgfs, handle,
387 &hns3_dbg_cmd_fops);
388 }
389
390 void hns3_dbg_uninit(struct hnae3_handle *handle)
391 {
392 debugfs_remove_recursive(handle->hnae3_dbgfs);
393 handle->hnae3_dbgfs = NULL;
394 }
395
396 void hns3_dbg_register_debugfs(const char *debugfs_dir_name)
397 {
398 hns3_dbgfs_root = debugfs_create_dir(debugfs_dir_name, NULL);
399 }
400
401 void hns3_dbg_unregister_debugfs(void)
402 {
403 debugfs_remove_recursive(hns3_dbgfs_root);
404 hns3_dbgfs_root = NULL;
405 }