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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
[mirror_ubuntu-artful-kernel.git] / drivers / net / ethernet / intel / i40e / i40e_debugfs.c
1 /*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2014 Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
17 *
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
20 *
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 ******************************************************************************/
26
27 #ifdef CONFIG_DEBUG_FS
28
29 #include <linux/fs.h>
30 #include <linux/debugfs.h>
31
32 #include "i40e.h"
33
34 static struct dentry *i40e_dbg_root;
35
36 /**
37 * i40e_dbg_find_vsi - searches for the vsi with the given seid
38 * @pf - the pf structure to search for the vsi
39 * @seid - seid of the vsi it is searching for
40 **/
41 static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
42 {
43 int i;
44
45 if (seid < 0)
46 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
47 else
48 for (i = 0; i < pf->num_alloc_vsi; i++)
49 if (pf->vsi[i] && (pf->vsi[i]->seid == seid))
50 return pf->vsi[i];
51
52 return NULL;
53 }
54
55 /**
56 * i40e_dbg_find_veb - searches for the veb with the given seid
57 * @pf - the pf structure to search for the veb
58 * @seid - seid of the veb it is searching for
59 **/
60 static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
61 {
62 int i;
63
64 if ((seid < I40E_BASE_VEB_SEID) ||
65 (seid > (I40E_BASE_VEB_SEID + I40E_MAX_VEB)))
66 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
67 else
68 for (i = 0; i < I40E_MAX_VEB; i++)
69 if (pf->veb[i] && pf->veb[i]->seid == seid)
70 return pf->veb[i];
71 return NULL;
72 }
73
74 /**************************************************************
75 * dump
76 * The dump entry in debugfs is for getting a data snapshow of
77 * the driver's current configuration and runtime details.
78 * When the filesystem entry is written, a snapshot is taken.
79 * When the entry is read, the most recent snapshot data is dumped.
80 **************************************************************/
81 static char *i40e_dbg_dump_buf;
82 static ssize_t i40e_dbg_dump_data_len;
83 static ssize_t i40e_dbg_dump_buffer_len;
84
85 /**
86 * i40e_dbg_dump_read - read the dump data
87 * @filp: the opened file
88 * @buffer: where to write the data for the user to read
89 * @count: the size of the user's buffer
90 * @ppos: file position offset
91 **/
92 static ssize_t i40e_dbg_dump_read(struct file *filp, char __user *buffer,
93 size_t count, loff_t *ppos)
94 {
95 int bytes_not_copied;
96 int len;
97
98 /* is *ppos bigger than the available data? */
99 if (*ppos >= i40e_dbg_dump_data_len || !i40e_dbg_dump_buf)
100 return 0;
101
102 /* be sure to not read beyond the end of available data */
103 len = min_t(int, count, (i40e_dbg_dump_data_len - *ppos));
104
105 bytes_not_copied = copy_to_user(buffer, &i40e_dbg_dump_buf[*ppos], len);
106 if (bytes_not_copied < 0)
107 return bytes_not_copied;
108
109 *ppos += len;
110 return len;
111 }
112
113 /**
114 * i40e_dbg_prep_dump_buf
115 * @pf: the pf we're working with
116 * @buflen: the desired buffer length
117 *
118 * Return positive if success, 0 if failed
119 **/
120 static int i40e_dbg_prep_dump_buf(struct i40e_pf *pf, int buflen)
121 {
122 /* if not already big enough, prep for re alloc */
123 if (i40e_dbg_dump_buffer_len && i40e_dbg_dump_buffer_len < buflen) {
124 kfree(i40e_dbg_dump_buf);
125 i40e_dbg_dump_buffer_len = 0;
126 i40e_dbg_dump_buf = NULL;
127 }
128
129 /* get a new buffer if needed */
130 if (!i40e_dbg_dump_buf) {
131 i40e_dbg_dump_buf = kzalloc(buflen, GFP_KERNEL);
132 if (i40e_dbg_dump_buf != NULL)
133 i40e_dbg_dump_buffer_len = buflen;
134 }
135
136 return i40e_dbg_dump_buffer_len;
137 }
138
139 /**
140 * i40e_dbg_dump_write - trigger a datadump snapshot
141 * @filp: the opened file
142 * @buffer: where to find the user's data
143 * @count: the length of the user's data
144 * @ppos: file position offset
145 *
146 * Any write clears the stats
147 **/
148 static ssize_t i40e_dbg_dump_write(struct file *filp,
149 const char __user *buffer,
150 size_t count, loff_t *ppos)
151 {
152 struct i40e_pf *pf = filp->private_data;
153 bool seid_found = false;
154 long seid = -1;
155 int buflen = 0;
156 int i, ret;
157 int len;
158 u8 *p;
159
160 /* don't allow partial writes */
161 if (*ppos != 0)
162 return 0;
163
164 /* decode the SEID given to be dumped */
165 ret = kstrtol_from_user(buffer, count, 0, &seid);
166
167 if (ret) {
168 dev_info(&pf->pdev->dev, "bad seid value\n");
169 } else if (seid == 0) {
170 seid_found = true;
171
172 kfree(i40e_dbg_dump_buf);
173 i40e_dbg_dump_buffer_len = 0;
174 i40e_dbg_dump_data_len = 0;
175 i40e_dbg_dump_buf = NULL;
176 dev_info(&pf->pdev->dev, "debug buffer freed\n");
177
178 } else if (seid == pf->pf_seid || seid == 1) {
179 seid_found = true;
180
181 buflen = sizeof(struct i40e_pf);
182 buflen += (sizeof(struct i40e_aq_desc)
183 * (pf->hw.aq.num_arq_entries + pf->hw.aq.num_asq_entries));
184
185 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
186 p = i40e_dbg_dump_buf;
187
188 len = sizeof(struct i40e_pf);
189 memcpy(p, pf, len);
190 p += len;
191
192 len = (sizeof(struct i40e_aq_desc)
193 * pf->hw.aq.num_asq_entries);
194 memcpy(p, pf->hw.aq.asq.desc_buf.va, len);
195 p += len;
196
197 len = (sizeof(struct i40e_aq_desc)
198 * pf->hw.aq.num_arq_entries);
199 memcpy(p, pf->hw.aq.arq.desc_buf.va, len);
200 p += len;
201
202 i40e_dbg_dump_data_len = buflen;
203 dev_info(&pf->pdev->dev,
204 "PF seid %ld dumped %d bytes\n",
205 seid, (int)i40e_dbg_dump_data_len);
206 }
207 } else if (seid >= I40E_BASE_VSI_SEID) {
208 struct i40e_vsi *vsi = NULL;
209 struct i40e_mac_filter *f;
210 int filter_count = 0;
211
212 mutex_lock(&pf->switch_mutex);
213 vsi = i40e_dbg_find_vsi(pf, seid);
214 if (!vsi) {
215 mutex_unlock(&pf->switch_mutex);
216 goto write_exit;
217 }
218
219 buflen = sizeof(struct i40e_vsi);
220 buflen += sizeof(struct i40e_q_vector) * vsi->num_q_vectors;
221 buflen += sizeof(struct i40e_ring) * 2 * vsi->num_queue_pairs;
222 buflen += sizeof(struct i40e_tx_buffer) * vsi->num_queue_pairs;
223 buflen += sizeof(struct i40e_rx_buffer) * vsi->num_queue_pairs;
224 list_for_each_entry(f, &vsi->mac_filter_list, list)
225 filter_count++;
226 buflen += sizeof(struct i40e_mac_filter) * filter_count;
227
228 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
229 p = i40e_dbg_dump_buf;
230 seid_found = true;
231
232 len = sizeof(struct i40e_vsi);
233 memcpy(p, vsi, len);
234 p += len;
235
236 if (vsi->num_q_vectors) {
237 len = (sizeof(struct i40e_q_vector)
238 * vsi->num_q_vectors);
239 memcpy(p, vsi->q_vectors, len);
240 p += len;
241 }
242
243 if (vsi->num_queue_pairs) {
244 len = (sizeof(struct i40e_ring) *
245 vsi->num_queue_pairs);
246 memcpy(p, vsi->tx_rings, len);
247 p += len;
248 memcpy(p, vsi->rx_rings, len);
249 p += len;
250 }
251
252 if (vsi->tx_rings[0]) {
253 len = sizeof(struct i40e_tx_buffer);
254 for (i = 0; i < vsi->num_queue_pairs; i++) {
255 memcpy(p, vsi->tx_rings[i]->tx_bi, len);
256 p += len;
257 }
258 len = sizeof(struct i40e_rx_buffer);
259 for (i = 0; i < vsi->num_queue_pairs; i++) {
260 memcpy(p, vsi->rx_rings[i]->rx_bi, len);
261 p += len;
262 }
263 }
264
265 /* macvlan filter list */
266 len = sizeof(struct i40e_mac_filter);
267 list_for_each_entry(f, &vsi->mac_filter_list, list) {
268 memcpy(p, f, len);
269 p += len;
270 }
271
272 i40e_dbg_dump_data_len = buflen;
273 dev_info(&pf->pdev->dev,
274 "VSI seid %ld dumped %d bytes\n",
275 seid, (int)i40e_dbg_dump_data_len);
276 }
277 mutex_unlock(&pf->switch_mutex);
278 } else if (seid >= I40E_BASE_VEB_SEID) {
279 struct i40e_veb *veb = NULL;
280
281 mutex_lock(&pf->switch_mutex);
282 veb = i40e_dbg_find_veb(pf, seid);
283 if (!veb) {
284 mutex_unlock(&pf->switch_mutex);
285 goto write_exit;
286 }
287
288 buflen = sizeof(struct i40e_veb);
289 if (i40e_dbg_prep_dump_buf(pf, buflen)) {
290 seid_found = true;
291 memcpy(i40e_dbg_dump_buf, veb, buflen);
292 i40e_dbg_dump_data_len = buflen;
293 dev_info(&pf->pdev->dev,
294 "VEB seid %ld dumped %d bytes\n",
295 seid, (int)i40e_dbg_dump_data_len);
296 }
297 mutex_unlock(&pf->switch_mutex);
298 }
299
300 write_exit:
301 if (!seid_found)
302 dev_info(&pf->pdev->dev, "unknown seid %ld\n", seid);
303
304 return count;
305 }
306
307 static const struct file_operations i40e_dbg_dump_fops = {
308 .owner = THIS_MODULE,
309 .open = simple_open,
310 .read = i40e_dbg_dump_read,
311 .write = i40e_dbg_dump_write,
312 };
313
314 /**************************************************************
315 * command
316 * The command entry in debugfs is for giving the driver commands
317 * to be executed - these may be for changing the internal switch
318 * setup, adding or removing filters, or other things. Many of
319 * these will be useful for some forms of unit testing.
320 **************************************************************/
321 static char i40e_dbg_command_buf[256] = "hello world";
322
323 /**
324 * i40e_dbg_command_read - read for command datum
325 * @filp: the opened file
326 * @buffer: where to write the data for the user to read
327 * @count: the size of the user's buffer
328 * @ppos: file position offset
329 **/
330 static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
331 size_t count, loff_t *ppos)
332 {
333 struct i40e_pf *pf = filp->private_data;
334 int bytes_not_copied;
335 int buf_size = 256;
336 char *buf;
337 int len;
338
339 /* don't allow partial reads */
340 if (*ppos != 0)
341 return 0;
342 if (count < buf_size)
343 return -ENOSPC;
344
345 buf = kzalloc(buf_size, GFP_KERNEL);
346 if (!buf)
347 return -ENOSPC;
348
349 len = snprintf(buf, buf_size, "%s: %s\n",
350 pf->vsi[pf->lan_vsi]->netdev->name,
351 i40e_dbg_command_buf);
352
353 bytes_not_copied = copy_to_user(buffer, buf, len);
354 kfree(buf);
355
356 if (bytes_not_copied < 0)
357 return bytes_not_copied;
358
359 *ppos = len;
360 return len;
361 }
362
363 /**
364 * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
365 * @pf: the i40e_pf created in command write
366 * @seid: the seid the user put in
367 **/
368 static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
369 {
370 struct rtnl_link_stats64 *nstat;
371 struct i40e_mac_filter *f;
372 struct i40e_vsi *vsi;
373 int i;
374
375 vsi = i40e_dbg_find_vsi(pf, seid);
376 if (!vsi) {
377 dev_info(&pf->pdev->dev,
378 "dump %d: seid not found\n", seid);
379 return;
380 }
381 dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
382 if (vsi->netdev)
383 dev_info(&pf->pdev->dev,
384 " netdev: name = %s\n",
385 vsi->netdev->name);
386 if (vsi->active_vlans)
387 dev_info(&pf->pdev->dev,
388 " vlgrp: & = %p\n", vsi->active_vlans);
389 dev_info(&pf->pdev->dev,
390 " netdev_registered = %i, current_netdev_flags = 0x%04x, state = %li flags = 0x%08lx\n",
391 vsi->netdev_registered,
392 vsi->current_netdev_flags, vsi->state, vsi->flags);
393 list_for_each_entry(f, &vsi->mac_filter_list, list) {
394 dev_info(&pf->pdev->dev,
395 " mac_filter_list: %pM vid=%d, is_netdev=%d is_vf=%d counter=%d\n",
396 f->macaddr, f->vlan, f->is_netdev, f->is_vf,
397 f->counter);
398 }
399 nstat = i40e_get_vsi_stats_struct(vsi);
400 dev_info(&pf->pdev->dev,
401 " net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
402 (long unsigned int)nstat->rx_packets,
403 (long unsigned int)nstat->rx_bytes,
404 (long unsigned int)nstat->rx_errors,
405 (long unsigned int)nstat->rx_dropped);
406 dev_info(&pf->pdev->dev,
407 " net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
408 (long unsigned int)nstat->tx_packets,
409 (long unsigned int)nstat->tx_bytes,
410 (long unsigned int)nstat->tx_errors,
411 (long unsigned int)nstat->tx_dropped);
412 dev_info(&pf->pdev->dev,
413 " net_stats: multicast = %lu, collisions = %lu\n",
414 (long unsigned int)nstat->multicast,
415 (long unsigned int)nstat->collisions);
416 dev_info(&pf->pdev->dev,
417 " net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
418 (long unsigned int)nstat->rx_length_errors,
419 (long unsigned int)nstat->rx_over_errors,
420 (long unsigned int)nstat->rx_crc_errors);
421 dev_info(&pf->pdev->dev,
422 " net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
423 (long unsigned int)nstat->rx_frame_errors,
424 (long unsigned int)nstat->rx_fifo_errors,
425 (long unsigned int)nstat->rx_missed_errors);
426 dev_info(&pf->pdev->dev,
427 " net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
428 (long unsigned int)nstat->tx_aborted_errors,
429 (long unsigned int)nstat->tx_carrier_errors,
430 (long unsigned int)nstat->tx_fifo_errors);
431 dev_info(&pf->pdev->dev,
432 " net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
433 (long unsigned int)nstat->tx_heartbeat_errors,
434 (long unsigned int)nstat->tx_window_errors);
435 dev_info(&pf->pdev->dev,
436 " net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
437 (long unsigned int)nstat->rx_compressed,
438 (long unsigned int)nstat->tx_compressed);
439 dev_info(&pf->pdev->dev,
440 " net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
441 (long unsigned int)vsi->net_stats_offsets.rx_packets,
442 (long unsigned int)vsi->net_stats_offsets.rx_bytes,
443 (long unsigned int)vsi->net_stats_offsets.rx_errors,
444 (long unsigned int)vsi->net_stats_offsets.rx_dropped);
445 dev_info(&pf->pdev->dev,
446 " net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
447 (long unsigned int)vsi->net_stats_offsets.tx_packets,
448 (long unsigned int)vsi->net_stats_offsets.tx_bytes,
449 (long unsigned int)vsi->net_stats_offsets.tx_errors,
450 (long unsigned int)vsi->net_stats_offsets.tx_dropped);
451 dev_info(&pf->pdev->dev,
452 " net_stats_offsets: multicast = %lu, collisions = %lu\n",
453 (long unsigned int)vsi->net_stats_offsets.multicast,
454 (long unsigned int)vsi->net_stats_offsets.collisions);
455 dev_info(&pf->pdev->dev,
456 " net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
457 (long unsigned int)vsi->net_stats_offsets.rx_length_errors,
458 (long unsigned int)vsi->net_stats_offsets.rx_over_errors,
459 (long unsigned int)vsi->net_stats_offsets.rx_crc_errors);
460 dev_info(&pf->pdev->dev,
461 " net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
462 (long unsigned int)vsi->net_stats_offsets.rx_frame_errors,
463 (long unsigned int)vsi->net_stats_offsets.rx_fifo_errors,
464 (long unsigned int)vsi->net_stats_offsets.rx_missed_errors);
465 dev_info(&pf->pdev->dev,
466 " net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
467 (long unsigned int)vsi->net_stats_offsets.tx_aborted_errors,
468 (long unsigned int)vsi->net_stats_offsets.tx_carrier_errors,
469 (long unsigned int)vsi->net_stats_offsets.tx_fifo_errors);
470 dev_info(&pf->pdev->dev,
471 " net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
472 (long unsigned int)vsi->net_stats_offsets.tx_heartbeat_errors,
473 (long unsigned int)vsi->net_stats_offsets.tx_window_errors);
474 dev_info(&pf->pdev->dev,
475 " net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
476 (long unsigned int)vsi->net_stats_offsets.rx_compressed,
477 (long unsigned int)vsi->net_stats_offsets.tx_compressed);
478 dev_info(&pf->pdev->dev,
479 " tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
480 vsi->tx_restart, vsi->tx_busy,
481 vsi->rx_buf_failed, vsi->rx_page_failed);
482 rcu_read_lock();
483 for (i = 0; i < vsi->num_queue_pairs; i++) {
484 struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]);
485 if (!rx_ring)
486 continue;
487
488 dev_info(&pf->pdev->dev,
489 " rx_rings[%i]: desc = %p\n",
490 i, rx_ring->desc);
491 dev_info(&pf->pdev->dev,
492 " rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n",
493 i, rx_ring->dev,
494 rx_ring->netdev,
495 rx_ring->rx_bi);
496 dev_info(&pf->pdev->dev,
497 " rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
498 i, rx_ring->state,
499 rx_ring->queue_index,
500 rx_ring->reg_idx);
501 dev_info(&pf->pdev->dev,
502 " rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n",
503 i, rx_ring->rx_hdr_len,
504 rx_ring->rx_buf_len,
505 rx_ring->dtype);
506 dev_info(&pf->pdev->dev,
507 " rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
508 i, rx_ring->hsplit,
509 rx_ring->next_to_use,
510 rx_ring->next_to_clean,
511 rx_ring->ring_active);
512 dev_info(&pf->pdev->dev,
513 " rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
514 i, rx_ring->stats.packets,
515 rx_ring->stats.bytes,
516 rx_ring->rx_stats.non_eop_descs);
517 dev_info(&pf->pdev->dev,
518 " rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
519 i,
520 rx_ring->rx_stats.alloc_page_failed,
521 rx_ring->rx_stats.alloc_buff_failed);
522 dev_info(&pf->pdev->dev,
523 " rx_rings[%i]: size = %i, dma = 0x%08lx\n",
524 i, rx_ring->size,
525 (long unsigned int)rx_ring->dma);
526 dev_info(&pf->pdev->dev,
527 " rx_rings[%i]: vsi = %p, q_vector = %p\n",
528 i, rx_ring->vsi,
529 rx_ring->q_vector);
530 }
531 for (i = 0; i < vsi->num_queue_pairs; i++) {
532 struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
533 if (!tx_ring)
534 continue;
535
536 dev_info(&pf->pdev->dev,
537 " tx_rings[%i]: desc = %p\n",
538 i, tx_ring->desc);
539 dev_info(&pf->pdev->dev,
540 " tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
541 i, tx_ring->dev,
542 tx_ring->netdev,
543 tx_ring->tx_bi);
544 dev_info(&pf->pdev->dev,
545 " tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
546 i, tx_ring->state,
547 tx_ring->queue_index,
548 tx_ring->reg_idx);
549 dev_info(&pf->pdev->dev,
550 " tx_rings[%i]: dtype = %d\n",
551 i, tx_ring->dtype);
552 dev_info(&pf->pdev->dev,
553 " tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
554 i, tx_ring->hsplit,
555 tx_ring->next_to_use,
556 tx_ring->next_to_clean,
557 tx_ring->ring_active);
558 dev_info(&pf->pdev->dev,
559 " tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
560 i, tx_ring->stats.packets,
561 tx_ring->stats.bytes,
562 tx_ring->tx_stats.restart_queue);
563 dev_info(&pf->pdev->dev,
564 " tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
565 i,
566 tx_ring->tx_stats.tx_busy,
567 tx_ring->tx_stats.tx_done_old);
568 dev_info(&pf->pdev->dev,
569 " tx_rings[%i]: size = %i, dma = 0x%08lx\n",
570 i, tx_ring->size,
571 (long unsigned int)tx_ring->dma);
572 dev_info(&pf->pdev->dev,
573 " tx_rings[%i]: vsi = %p, q_vector = %p\n",
574 i, tx_ring->vsi,
575 tx_ring->q_vector);
576 dev_info(&pf->pdev->dev,
577 " tx_rings[%i]: DCB tc = %d\n",
578 i, tx_ring->dcb_tc);
579 }
580 rcu_read_unlock();
581 dev_info(&pf->pdev->dev,
582 " work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n",
583 vsi->work_limit, vsi->rx_itr_setting,
584 ITR_IS_DYNAMIC(vsi->rx_itr_setting) ? "dynamic" : "fixed",
585 vsi->tx_itr_setting,
586 ITR_IS_DYNAMIC(vsi->tx_itr_setting) ? "dynamic" : "fixed");
587 dev_info(&pf->pdev->dev,
588 " max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n",
589 vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype);
590 dev_info(&pf->pdev->dev,
591 " num_q_vectors = %i, base_vector = %i\n",
592 vsi->num_q_vectors, vsi->base_vector);
593 dev_info(&pf->pdev->dev,
594 " seid = %d, id = %d, uplink_seid = %d\n",
595 vsi->seid, vsi->id, vsi->uplink_seid);
596 dev_info(&pf->pdev->dev,
597 " base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
598 vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
599 dev_info(&pf->pdev->dev, " type = %i\n", vsi->type);
600 dev_info(&pf->pdev->dev,
601 " info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
602 vsi->info.valid_sections, vsi->info.switch_id);
603 dev_info(&pf->pdev->dev,
604 " info: sw_reserved[] = 0x%02x 0x%02x\n",
605 vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
606 dev_info(&pf->pdev->dev,
607 " info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
608 vsi->info.sec_flags, vsi->info.sec_reserved);
609 dev_info(&pf->pdev->dev,
610 " info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
611 vsi->info.pvid, vsi->info.fcoe_pvid,
612 vsi->info.port_vlan_flags);
613 dev_info(&pf->pdev->dev,
614 " info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
615 vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
616 vsi->info.pvlan_reserved[2]);
617 dev_info(&pf->pdev->dev,
618 " info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
619 vsi->info.ingress_table, vsi->info.egress_table);
620 dev_info(&pf->pdev->dev,
621 " info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
622 vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
623 vsi->info.cas_pv_reserved);
624 dev_info(&pf->pdev->dev,
625 " info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
626 vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
627 vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
628 vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
629 vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
630 dev_info(&pf->pdev->dev,
631 " info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
632 vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
633 vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
634 vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
635 vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
636 dev_info(&pf->pdev->dev,
637 " info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
638 vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
639 vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
640 vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
641 vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
642 dev_info(&pf->pdev->dev,
643 " info: queueing_opt_flags = 0x%02x queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
644 vsi->info.queueing_opt_flags,
645 vsi->info.queueing_opt_reserved[0],
646 vsi->info.queueing_opt_reserved[1],
647 vsi->info.queueing_opt_reserved[2]);
648 dev_info(&pf->pdev->dev,
649 " info: up_enable_bits = 0x%02x\n",
650 vsi->info.up_enable_bits);
651 dev_info(&pf->pdev->dev,
652 " info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
653 vsi->info.sched_reserved, vsi->info.outer_up_table);
654 dev_info(&pf->pdev->dev,
655 " info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
656 vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
657 vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
658 vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
659 vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
660 dev_info(&pf->pdev->dev,
661 " info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
662 vsi->info.qs_handle[0], vsi->info.qs_handle[1],
663 vsi->info.qs_handle[2], vsi->info.qs_handle[3],
664 vsi->info.qs_handle[4], vsi->info.qs_handle[5],
665 vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
666 dev_info(&pf->pdev->dev,
667 " info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
668 vsi->info.stat_counter_idx, vsi->info.sched_id);
669 dev_info(&pf->pdev->dev,
670 " info: resp_reserved[] = 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n",
671 vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
672 vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
673 vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
674 vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
675 vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
676 vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
677 if (vsi->back)
678 dev_info(&pf->pdev->dev, " pf = %p\n", vsi->back);
679 dev_info(&pf->pdev->dev, " idx = %d\n", vsi->idx);
680 dev_info(&pf->pdev->dev,
681 " tc_config: numtc = %d, enabled_tc = 0x%x\n",
682 vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
683 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
684 dev_info(&pf->pdev->dev,
685 " tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
686 i, vsi->tc_config.tc_info[i].qoffset,
687 vsi->tc_config.tc_info[i].qcount,
688 vsi->tc_config.tc_info[i].netdev_tc);
689 }
690 dev_info(&pf->pdev->dev,
691 " bw: bw_limit = %d, bw_max_quanta = %d\n",
692 vsi->bw_limit, vsi->bw_max_quanta);
693 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
694 dev_info(&pf->pdev->dev,
695 " bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
696 i, vsi->bw_ets_share_credits[i],
697 vsi->bw_ets_limit_credits[i],
698 vsi->bw_ets_max_quanta[i]);
699 }
700 #ifdef I40E_FCOE
701 if (vsi->type == I40E_VSI_FCOE) {
702 dev_info(&pf->pdev->dev,
703 " fcoe_stats: rx_packets = %llu, rx_dwords = %llu, rx_dropped = %llu\n",
704 vsi->fcoe_stats.rx_fcoe_packets,
705 vsi->fcoe_stats.rx_fcoe_dwords,
706 vsi->fcoe_stats.rx_fcoe_dropped);
707 dev_info(&pf->pdev->dev,
708 " fcoe_stats: tx_packets = %llu, tx_dwords = %llu\n",
709 vsi->fcoe_stats.tx_fcoe_packets,
710 vsi->fcoe_stats.tx_fcoe_dwords);
711 dev_info(&pf->pdev->dev,
712 " fcoe_stats: bad_crc = %llu, last_error = %llu\n",
713 vsi->fcoe_stats.fcoe_bad_fccrc,
714 vsi->fcoe_stats.fcoe_last_error);
715 dev_info(&pf->pdev->dev, " fcoe_stats: ddp_count = %llu\n",
716 vsi->fcoe_stats.fcoe_ddp_count);
717 }
718 #endif
719 }
720
721 /**
722 * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
723 * @pf: the i40e_pf created in command write
724 **/
725 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
726 {
727 struct i40e_adminq_ring *ring;
728 struct i40e_hw *hw = &pf->hw;
729 char hdr[32];
730 int i;
731
732 snprintf(hdr, sizeof(hdr), "%s %s: ",
733 dev_driver_string(&pf->pdev->dev),
734 dev_name(&pf->pdev->dev));
735
736 /* first the send (command) ring, then the receive (event) ring */
737 dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
738 ring = &(hw->aq.asq);
739 for (i = 0; i < ring->count; i++) {
740 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
741 dev_info(&pf->pdev->dev,
742 " at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
743 i, d->flags, d->opcode, d->datalen, d->retval,
744 d->cookie_high, d->cookie_low);
745 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
746 16, 1, d->params.raw, 16, 0);
747 }
748
749 dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
750 ring = &(hw->aq.arq);
751 for (i = 0; i < ring->count; i++) {
752 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
753 dev_info(&pf->pdev->dev,
754 " ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
755 i, d->flags, d->opcode, d->datalen, d->retval,
756 d->cookie_high, d->cookie_low);
757 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
758 16, 1, d->params.raw, 16, 0);
759 }
760 }
761
762 /**
763 * i40e_dbg_dump_desc - handles dump desc write into command datum
764 * @cnt: number of arguments that the user supplied
765 * @vsi_seid: vsi id entered by user
766 * @ring_id: ring id entered by user
767 * @desc_n: descriptor number entered by user
768 * @pf: the i40e_pf created in command write
769 * @is_rx_ring: true if rx, false if tx
770 **/
771 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
772 struct i40e_pf *pf, bool is_rx_ring)
773 {
774 struct i40e_tx_desc *txd;
775 union i40e_rx_desc *rxd;
776 struct i40e_ring ring;
777 struct i40e_vsi *vsi;
778 int i;
779
780 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
781 if (!vsi) {
782 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
783 return;
784 }
785 if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
786 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
787 return;
788 }
789 if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
790 dev_info(&pf->pdev->dev,
791 "descriptor rings have not been allocated for vsi %d\n",
792 vsi_seid);
793 return;
794 }
795 if (is_rx_ring)
796 ring = *vsi->rx_rings[ring_id];
797 else
798 ring = *vsi->tx_rings[ring_id];
799 if (cnt == 2) {
800 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
801 vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
802 for (i = 0; i < ring.count; i++) {
803 if (!is_rx_ring) {
804 txd = I40E_TX_DESC(&ring, i);
805 dev_info(&pf->pdev->dev,
806 " d[%03i] = 0x%016llx 0x%016llx\n",
807 i, txd->buffer_addr,
808 txd->cmd_type_offset_bsz);
809 } else if (sizeof(union i40e_rx_desc) ==
810 sizeof(union i40e_16byte_rx_desc)) {
811 rxd = I40E_RX_DESC(&ring, i);
812 dev_info(&pf->pdev->dev,
813 " d[%03i] = 0x%016llx 0x%016llx\n",
814 i, rxd->read.pkt_addr,
815 rxd->read.hdr_addr);
816 } else {
817 rxd = I40E_RX_DESC(&ring, i);
818 dev_info(&pf->pdev->dev,
819 " d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
820 i, rxd->read.pkt_addr,
821 rxd->read.hdr_addr,
822 rxd->read.rsvd1, rxd->read.rsvd2);
823 }
824 }
825 } else if (cnt == 3) {
826 if (desc_n >= ring.count || desc_n < 0) {
827 dev_info(&pf->pdev->dev,
828 "descriptor %d not found\n", desc_n);
829 return;
830 }
831 if (!is_rx_ring) {
832 txd = I40E_TX_DESC(&ring, desc_n);
833 dev_info(&pf->pdev->dev,
834 "vsi = %02i tx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
835 vsi_seid, ring_id, desc_n,
836 txd->buffer_addr, txd->cmd_type_offset_bsz);
837 } else if (sizeof(union i40e_rx_desc) ==
838 sizeof(union i40e_16byte_rx_desc)) {
839 rxd = I40E_RX_DESC(&ring, desc_n);
840 dev_info(&pf->pdev->dev,
841 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
842 vsi_seid, ring_id, desc_n,
843 rxd->read.pkt_addr, rxd->read.hdr_addr);
844 } else {
845 rxd = I40E_RX_DESC(&ring, desc_n);
846 dev_info(&pf->pdev->dev,
847 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
848 vsi_seid, ring_id, desc_n,
849 rxd->read.pkt_addr, rxd->read.hdr_addr,
850 rxd->read.rsvd1, rxd->read.rsvd2);
851 }
852 } else {
853 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
854 }
855 }
856
857 /**
858 * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
859 * @pf: the i40e_pf created in command write
860 **/
861 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
862 {
863 int i;
864
865 for (i = 0; i < pf->num_alloc_vsi; i++)
866 if (pf->vsi[i])
867 dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
868 i, pf->vsi[i]->seid);
869 }
870
871 /**
872 * i40e_dbg_dump_stats - handles dump stats write into command datum
873 * @pf: the i40e_pf created in command write
874 * @estats: the eth stats structure to be dumped
875 **/
876 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
877 struct i40e_eth_stats *estats)
878 {
879 dev_info(&pf->pdev->dev, " ethstats:\n");
880 dev_info(&pf->pdev->dev,
881 " rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
882 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
883 dev_info(&pf->pdev->dev,
884 " rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
885 estats->rx_broadcast, estats->rx_discards);
886 dev_info(&pf->pdev->dev,
887 " rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
888 estats->rx_unknown_protocol, estats->tx_bytes);
889 dev_info(&pf->pdev->dev,
890 " tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
891 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
892 dev_info(&pf->pdev->dev,
893 " tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
894 estats->tx_discards, estats->tx_errors);
895 }
896
897 /**
898 * i40e_dbg_dump_stats - handles dump stats write into command datum
899 * @pf: the i40e_pf created in command write
900 * @stats: the stats structure to be dumped
901 **/
902 static void i40e_dbg_dump_stats(struct i40e_pf *pf,
903 struct i40e_hw_port_stats *stats)
904 {
905 int i;
906
907 dev_info(&pf->pdev->dev, " stats:\n");
908 dev_info(&pf->pdev->dev,
909 " crc_errors = \t\t%lld \tillegal_bytes = \t%lld \terror_bytes = \t\t%lld\n",
910 stats->crc_errors, stats->illegal_bytes, stats->error_bytes);
911 dev_info(&pf->pdev->dev,
912 " mac_local_faults = \t%lld \tmac_remote_faults = \t%lld \trx_length_errors = \t%lld\n",
913 stats->mac_local_faults, stats->mac_remote_faults,
914 stats->rx_length_errors);
915 dev_info(&pf->pdev->dev,
916 " link_xon_rx = \t\t%lld \tlink_xoff_rx = \t\t%lld \tlink_xon_tx = \t\t%lld\n",
917 stats->link_xon_rx, stats->link_xoff_rx, stats->link_xon_tx);
918 dev_info(&pf->pdev->dev,
919 " link_xoff_tx = \t\t%lld \trx_size_64 = \t\t%lld \trx_size_127 = \t\t%lld\n",
920 stats->link_xoff_tx, stats->rx_size_64, stats->rx_size_127);
921 dev_info(&pf->pdev->dev,
922 " rx_size_255 = \t\t%lld \trx_size_511 = \t\t%lld \trx_size_1023 = \t\t%lld\n",
923 stats->rx_size_255, stats->rx_size_511, stats->rx_size_1023);
924 dev_info(&pf->pdev->dev,
925 " rx_size_big = \t\t%lld \trx_undersize = \t\t%lld \trx_jabber = \t\t%lld\n",
926 stats->rx_size_big, stats->rx_undersize, stats->rx_jabber);
927 dev_info(&pf->pdev->dev,
928 " rx_fragments = \t\t%lld \trx_oversize = \t\t%lld \ttx_size_64 = \t\t%lld\n",
929 stats->rx_fragments, stats->rx_oversize, stats->tx_size_64);
930 dev_info(&pf->pdev->dev,
931 " tx_size_127 = \t\t%lld \ttx_size_255 = \t\t%lld \ttx_size_511 = \t\t%lld\n",
932 stats->tx_size_127, stats->tx_size_255, stats->tx_size_511);
933 dev_info(&pf->pdev->dev,
934 " tx_size_1023 = \t\t%lld \ttx_size_big = \t\t%lld \tmac_short_packet_dropped = \t%lld\n",
935 stats->tx_size_1023, stats->tx_size_big,
936 stats->mac_short_packet_dropped);
937 for (i = 0; i < 8; i += 4) {
938 dev_info(&pf->pdev->dev,
939 " priority_xon_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
940 i, stats->priority_xon_rx[i],
941 i+1, stats->priority_xon_rx[i+1],
942 i+2, stats->priority_xon_rx[i+2],
943 i+3, stats->priority_xon_rx[i+3]);
944 }
945 for (i = 0; i < 8; i += 4) {
946 dev_info(&pf->pdev->dev,
947 " priority_xoff_rx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
948 i, stats->priority_xoff_rx[i],
949 i+1, stats->priority_xoff_rx[i+1],
950 i+2, stats->priority_xoff_rx[i+2],
951 i+3, stats->priority_xoff_rx[i+3]);
952 }
953 for (i = 0; i < 8; i += 4) {
954 dev_info(&pf->pdev->dev,
955 " priority_xon_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
956 i, stats->priority_xon_tx[i],
957 i+1, stats->priority_xon_tx[i+1],
958 i+2, stats->priority_xon_tx[i+2],
959 i+3, stats->priority_xon_rx[i+3]);
960 }
961 for (i = 0; i < 8; i += 4) {
962 dev_info(&pf->pdev->dev,
963 " priority_xoff_tx[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
964 i, stats->priority_xoff_tx[i],
965 i+1, stats->priority_xoff_tx[i+1],
966 i+2, stats->priority_xoff_tx[i+2],
967 i+3, stats->priority_xoff_tx[i+3]);
968 }
969 for (i = 0; i < 8; i += 4) {
970 dev_info(&pf->pdev->dev,
971 " priority_xon_2_xoff[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld \t[%d] = \t%lld\n",
972 i, stats->priority_xon_2_xoff[i],
973 i+1, stats->priority_xon_2_xoff[i+1],
974 i+2, stats->priority_xon_2_xoff[i+2],
975 i+3, stats->priority_xon_2_xoff[i+3]);
976 }
977
978 i40e_dbg_dump_eth_stats(pf, &stats->eth);
979 }
980
981 /**
982 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
983 * @pf: the i40e_pf created in command write
984 * @seid: the seid the user put in
985 **/
986 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
987 {
988 struct i40e_veb *veb;
989
990 if ((seid < I40E_BASE_VEB_SEID) ||
991 (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
992 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
993 return;
994 }
995
996 veb = i40e_dbg_find_veb(pf, seid);
997 if (!veb) {
998 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
999 return;
1000 }
1001 dev_info(&pf->pdev->dev,
1002 "veb idx=%d,%d stats_ic=%d seid=%d uplink=%d\n",
1003 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
1004 veb->uplink_seid);
1005 i40e_dbg_dump_eth_stats(pf, &veb->stats);
1006 }
1007
1008 /**
1009 * i40e_dbg_dump_veb_all - dumps all known veb's stats
1010 * @pf: the i40e_pf created in command write
1011 **/
1012 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
1013 {
1014 struct i40e_veb *veb;
1015 int i;
1016
1017 for (i = 0; i < I40E_MAX_VEB; i++) {
1018 veb = pf->veb[i];
1019 if (veb)
1020 i40e_dbg_dump_veb_seid(pf, veb->seid);
1021 }
1022 }
1023
1024 /**
1025 * i40e_dbg_cmd_fd_ctrl - Enable/disable FD sideband/ATR
1026 * @pf: the pf that would be altered
1027 * @flag: flag that needs enabling or disabling
1028 * @enable: Enable/disable FD SD/ATR
1029 **/
1030 static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable)
1031 {
1032 if (enable) {
1033 pf->flags |= flag;
1034 } else {
1035 pf->flags &= ~flag;
1036 pf->auto_disable_flags |= flag;
1037 }
1038 dev_info(&pf->pdev->dev, "requesting a pf reset\n");
1039 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
1040 }
1041
1042 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
1043 /**
1044 * i40e_dbg_command_write - write into command datum
1045 * @filp: the opened file
1046 * @buffer: where to find the user's data
1047 * @count: the length of the user's data
1048 * @ppos: file position offset
1049 **/
1050 static ssize_t i40e_dbg_command_write(struct file *filp,
1051 const char __user *buffer,
1052 size_t count, loff_t *ppos)
1053 {
1054 struct i40e_pf *pf = filp->private_data;
1055 char *cmd_buf, *cmd_buf_tmp;
1056 int bytes_not_copied;
1057 struct i40e_vsi *vsi;
1058 int vsi_seid;
1059 int veb_seid;
1060 int cnt;
1061
1062 /* don't allow partial writes */
1063 if (*ppos != 0)
1064 return 0;
1065
1066 cmd_buf = kzalloc(count + 1, GFP_KERNEL);
1067 if (!cmd_buf)
1068 return count;
1069 bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
1070 if (bytes_not_copied < 0)
1071 return bytes_not_copied;
1072 if (bytes_not_copied > 0)
1073 count -= bytes_not_copied;
1074 cmd_buf[count] = '\0';
1075
1076 cmd_buf_tmp = strchr(cmd_buf, '\n');
1077 if (cmd_buf_tmp) {
1078 *cmd_buf_tmp = '\0';
1079 count = cmd_buf_tmp - cmd_buf + 1;
1080 }
1081
1082 if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1083 vsi_seid = -1;
1084 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1085 if (cnt == 0) {
1086 /* default to PF VSI */
1087 vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1088 } else if (vsi_seid < 0) {
1089 dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1090 vsi_seid);
1091 goto command_write_done;
1092 }
1093
1094 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1095 if (vsi)
1096 dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1097 vsi->seid, vsi->uplink_seid);
1098 else
1099 dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1100
1101 } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1102 sscanf(&cmd_buf[7], "%i", &vsi_seid);
1103 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1104 if (!vsi) {
1105 dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1106 vsi_seid);
1107 goto command_write_done;
1108 }
1109
1110 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1111 i40e_vsi_release(vsi);
1112
1113 } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1114 struct i40e_veb *veb;
1115 int uplink_seid, i;
1116
1117 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1118 if (cnt != 2) {
1119 dev_info(&pf->pdev->dev,
1120 "add relay: bad command string, cnt=%d\n",
1121 cnt);
1122 goto command_write_done;
1123 } else if (uplink_seid < 0) {
1124 dev_info(&pf->pdev->dev,
1125 "add relay %d: bad uplink seid\n",
1126 uplink_seid);
1127 goto command_write_done;
1128 }
1129
1130 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1131 if (!vsi) {
1132 dev_info(&pf->pdev->dev,
1133 "add relay: VSI %d not found\n", vsi_seid);
1134 goto command_write_done;
1135 }
1136
1137 for (i = 0; i < I40E_MAX_VEB; i++)
1138 if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1139 break;
1140 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1141 uplink_seid != pf->mac_seid) {
1142 dev_info(&pf->pdev->dev,
1143 "add relay: relay uplink %d not found\n",
1144 uplink_seid);
1145 goto command_write_done;
1146 }
1147
1148 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1149 vsi->tc_config.enabled_tc);
1150 if (veb)
1151 dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1152 else
1153 dev_info(&pf->pdev->dev, "add relay failed\n");
1154
1155 } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1156 int i;
1157 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1158 if (cnt != 1) {
1159 dev_info(&pf->pdev->dev,
1160 "del relay: bad command string, cnt=%d\n",
1161 cnt);
1162 goto command_write_done;
1163 } else if (veb_seid < 0) {
1164 dev_info(&pf->pdev->dev,
1165 "del relay %d: bad relay seid\n", veb_seid);
1166 goto command_write_done;
1167 }
1168
1169 /* find the veb */
1170 for (i = 0; i < I40E_MAX_VEB; i++)
1171 if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1172 break;
1173 if (i >= I40E_MAX_VEB) {
1174 dev_info(&pf->pdev->dev,
1175 "del relay: relay %d not found\n", veb_seid);
1176 goto command_write_done;
1177 }
1178
1179 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1180 i40e_veb_release(pf->veb[i]);
1181
1182 } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1183 struct i40e_mac_filter *f;
1184 int vlan = 0;
1185 u8 ma[6];
1186 int ret;
1187
1188 cnt = sscanf(&cmd_buf[11],
1189 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1190 &vsi_seid,
1191 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1192 &vlan);
1193 if (cnt == 7) {
1194 vlan = 0;
1195 } else if (cnt != 8) {
1196 dev_info(&pf->pdev->dev,
1197 "add macaddr: bad command string, cnt=%d\n",
1198 cnt);
1199 goto command_write_done;
1200 }
1201
1202 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1203 if (!vsi) {
1204 dev_info(&pf->pdev->dev,
1205 "add macaddr: VSI %d not found\n", vsi_seid);
1206 goto command_write_done;
1207 }
1208
1209 f = i40e_add_filter(vsi, ma, vlan, false, false);
1210 ret = i40e_sync_vsi_filters(vsi);
1211 if (f && !ret)
1212 dev_info(&pf->pdev->dev,
1213 "add macaddr: %pM vlan=%d added to VSI %d\n",
1214 ma, vlan, vsi_seid);
1215 else
1216 dev_info(&pf->pdev->dev,
1217 "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1218 ma, vlan, vsi_seid, f, ret);
1219
1220 } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
1221 int vlan = 0;
1222 u8 ma[6];
1223 int ret;
1224
1225 cnt = sscanf(&cmd_buf[11],
1226 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1227 &vsi_seid,
1228 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1229 &vlan);
1230 if (cnt == 7) {
1231 vlan = 0;
1232 } else if (cnt != 8) {
1233 dev_info(&pf->pdev->dev,
1234 "del macaddr: bad command string, cnt=%d\n",
1235 cnt);
1236 goto command_write_done;
1237 }
1238
1239 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1240 if (!vsi) {
1241 dev_info(&pf->pdev->dev,
1242 "del macaddr: VSI %d not found\n", vsi_seid);
1243 goto command_write_done;
1244 }
1245
1246 i40e_del_filter(vsi, ma, vlan, false, false);
1247 ret = i40e_sync_vsi_filters(vsi);
1248 if (!ret)
1249 dev_info(&pf->pdev->dev,
1250 "del macaddr: %pM vlan=%d removed from VSI %d\n",
1251 ma, vlan, vsi_seid);
1252 else
1253 dev_info(&pf->pdev->dev,
1254 "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1255 ma, vlan, vsi_seid, ret);
1256
1257 } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1258 i40e_status ret;
1259 u16 vid;
1260 unsigned int v;
1261
1262 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1263 if (cnt != 2) {
1264 dev_info(&pf->pdev->dev,
1265 "add pvid: bad command string, cnt=%d\n", cnt);
1266 goto command_write_done;
1267 }
1268
1269 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1270 if (!vsi) {
1271 dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1272 vsi_seid);
1273 goto command_write_done;
1274 }
1275
1276 vid = v;
1277 ret = i40e_vsi_add_pvid(vsi, vid);
1278 if (!ret)
1279 dev_info(&pf->pdev->dev,
1280 "add pvid: %d added to VSI %d\n",
1281 vid, vsi_seid);
1282 else
1283 dev_info(&pf->pdev->dev,
1284 "add pvid: %d to VSI %d failed, ret=%d\n",
1285 vid, vsi_seid, ret);
1286
1287 } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1288
1289 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1290 if (cnt != 1) {
1291 dev_info(&pf->pdev->dev,
1292 "del pvid: bad command string, cnt=%d\n",
1293 cnt);
1294 goto command_write_done;
1295 }
1296
1297 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1298 if (!vsi) {
1299 dev_info(&pf->pdev->dev,
1300 "del pvid: VSI %d not found\n", vsi_seid);
1301 goto command_write_done;
1302 }
1303
1304 i40e_vsi_remove_pvid(vsi);
1305 dev_info(&pf->pdev->dev,
1306 "del pvid: removed from VSI %d\n", vsi_seid);
1307
1308 } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1309 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1310 i40e_fetch_switch_configuration(pf, true);
1311 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1312 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1313 if (cnt > 0)
1314 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1315 else
1316 i40e_dbg_dump_vsi_no_seid(pf);
1317 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1318 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1319 if (cnt > 0)
1320 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1321 else
1322 i40e_dbg_dump_veb_all(pf);
1323 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1324 int ring_id, desc_n;
1325 if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1326 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1327 &vsi_seid, &ring_id, &desc_n);
1328 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1329 desc_n, pf, true);
1330 } else if (strncmp(&cmd_buf[10], "tx", 2)
1331 == 0) {
1332 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1333 &vsi_seid, &ring_id, &desc_n);
1334 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1335 desc_n, pf, false);
1336 } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1337 i40e_dbg_dump_aq_desc(pf);
1338 } else {
1339 dev_info(&pf->pdev->dev,
1340 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1341 dev_info(&pf->pdev->dev,
1342 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1343 dev_info(&pf->pdev->dev, "dump desc aq\n");
1344 }
1345 } else if (strncmp(&cmd_buf[5], "stats", 5) == 0) {
1346 dev_info(&pf->pdev->dev, "pf stats:\n");
1347 i40e_dbg_dump_stats(pf, &pf->stats);
1348 dev_info(&pf->pdev->dev, "pf stats_offsets:\n");
1349 i40e_dbg_dump_stats(pf, &pf->stats_offsets);
1350 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1351 dev_info(&pf->pdev->dev,
1352 "core reset count: %d\n", pf->corer_count);
1353 dev_info(&pf->pdev->dev,
1354 "global reset count: %d\n", pf->globr_count);
1355 dev_info(&pf->pdev->dev,
1356 "emp reset count: %d\n", pf->empr_count);
1357 dev_info(&pf->pdev->dev,
1358 "pf reset count: %d\n", pf->pfr_count);
1359 dev_info(&pf->pdev->dev,
1360 "pf tx sluggish count: %d\n",
1361 pf->tx_sluggish_count);
1362 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1363 struct i40e_aqc_query_port_ets_config_resp *bw_data;
1364 struct i40e_dcbx_config *cfg =
1365 &pf->hw.local_dcbx_config;
1366 struct i40e_dcbx_config *r_cfg =
1367 &pf->hw.remote_dcbx_config;
1368 int i, ret;
1369
1370 bw_data = kzalloc(sizeof(
1371 struct i40e_aqc_query_port_ets_config_resp),
1372 GFP_KERNEL);
1373 if (!bw_data) {
1374 ret = -ENOMEM;
1375 goto command_write_done;
1376 }
1377
1378 ret = i40e_aq_query_port_ets_config(&pf->hw,
1379 pf->mac_seid,
1380 bw_data, NULL);
1381 if (ret) {
1382 dev_info(&pf->pdev->dev,
1383 "Query Port ETS Config AQ command failed =0x%x\n",
1384 pf->hw.aq.asq_last_status);
1385 kfree(bw_data);
1386 bw_data = NULL;
1387 goto command_write_done;
1388 }
1389 dev_info(&pf->pdev->dev,
1390 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1391 bw_data->tc_valid_bits,
1392 bw_data->tc_strict_priority_bits,
1393 le16_to_cpu(bw_data->tc_bw_max[0]),
1394 le16_to_cpu(bw_data->tc_bw_max[1]));
1395 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1396 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1397 bw_data->tc_bw_share_credits[i],
1398 le16_to_cpu(bw_data->tc_bw_limits[i]));
1399 }
1400
1401 kfree(bw_data);
1402 bw_data = NULL;
1403
1404 dev_info(&pf->pdev->dev,
1405 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1406 cfg->etscfg.willing, cfg->etscfg.cbs,
1407 cfg->etscfg.maxtcs);
1408 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1409 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1410 i, cfg->etscfg.prioritytable[i],
1411 cfg->etscfg.tcbwtable[i],
1412 cfg->etscfg.tsatable[i]);
1413 }
1414 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1415 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1416 i, cfg->etsrec.prioritytable[i],
1417 cfg->etsrec.tcbwtable[i],
1418 cfg->etsrec.tsatable[i]);
1419 }
1420 dev_info(&pf->pdev->dev,
1421 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1422 cfg->pfc.willing, cfg->pfc.mbc,
1423 cfg->pfc.pfccap, cfg->pfc.pfcenable);
1424 dev_info(&pf->pdev->dev,
1425 "port app_table: num_apps=%d\n", cfg->numapps);
1426 for (i = 0; i < cfg->numapps; i++) {
1427 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1428 i, cfg->app[i].priority,
1429 cfg->app[i].selector,
1430 cfg->app[i].protocolid);
1431 }
1432 /* Peer TLV DCBX data */
1433 dev_info(&pf->pdev->dev,
1434 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1435 r_cfg->etscfg.willing,
1436 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1437 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1438 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1439 i, r_cfg->etscfg.prioritytable[i],
1440 r_cfg->etscfg.tcbwtable[i],
1441 r_cfg->etscfg.tsatable[i]);
1442 }
1443 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1444 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1445 i, r_cfg->etsrec.prioritytable[i],
1446 r_cfg->etsrec.tcbwtable[i],
1447 r_cfg->etsrec.tsatable[i]);
1448 }
1449 dev_info(&pf->pdev->dev,
1450 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1451 r_cfg->pfc.willing,
1452 r_cfg->pfc.mbc,
1453 r_cfg->pfc.pfccap,
1454 r_cfg->pfc.pfcenable);
1455 dev_info(&pf->pdev->dev,
1456 "remote port app_table: num_apps=%d\n",
1457 r_cfg->numapps);
1458 for (i = 0; i < r_cfg->numapps; i++) {
1459 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1460 i, r_cfg->app[i].priority,
1461 r_cfg->app[i].selector,
1462 r_cfg->app[i].protocolid);
1463 }
1464 } else {
1465 dev_info(&pf->pdev->dev,
1466 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1467 dev_info(&pf->pdev->dev, "dump switch, dump vsi [seid] or\n");
1468 dev_info(&pf->pdev->dev, "dump stats\n");
1469 dev_info(&pf->pdev->dev, "dump reset stats\n");
1470 dev_info(&pf->pdev->dev, "dump port\n");
1471 dev_info(&pf->pdev->dev,
1472 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1473 }
1474
1475 } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1476 u32 level;
1477 cnt = sscanf(&cmd_buf[10], "%i", &level);
1478 if (cnt) {
1479 if (I40E_DEBUG_USER & level) {
1480 pf->hw.debug_mask = level;
1481 dev_info(&pf->pdev->dev,
1482 "set hw.debug_mask = 0x%08x\n",
1483 pf->hw.debug_mask);
1484 }
1485 pf->msg_enable = level;
1486 dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1487 pf->msg_enable);
1488 } else {
1489 dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1490 pf->msg_enable);
1491 }
1492 } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1493 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1494 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
1495
1496 } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1497 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1498 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED));
1499
1500 } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1501 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1502 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED));
1503
1504 } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1505 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
1506 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED));
1507
1508 } else if (strncmp(cmd_buf, "read", 4) == 0) {
1509 u32 address;
1510 u32 value;
1511 cnt = sscanf(&cmd_buf[4], "%i", &address);
1512 if (cnt != 1) {
1513 dev_info(&pf->pdev->dev, "read <reg>\n");
1514 goto command_write_done;
1515 }
1516
1517 /* check the range on address */
1518 if (address >= I40E_MAX_REGISTER) {
1519 dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n",
1520 address);
1521 goto command_write_done;
1522 }
1523
1524 value = rd32(&pf->hw, address);
1525 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1526 address, value);
1527
1528 } else if (strncmp(cmd_buf, "write", 5) == 0) {
1529 u32 address, value;
1530 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1531 if (cnt != 2) {
1532 dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1533 goto command_write_done;
1534 }
1535
1536 /* check the range on address */
1537 if (address >= I40E_MAX_REGISTER) {
1538 dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n",
1539 address);
1540 goto command_write_done;
1541 }
1542 wr32(&pf->hw, address, value);
1543 value = rd32(&pf->hw, address);
1544 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1545 address, value);
1546 } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1547 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1548 cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1549 if (cnt == 0) {
1550 int i;
1551 for (i = 0; i < pf->num_alloc_vsi; i++)
1552 i40e_vsi_reset_stats(pf->vsi[i]);
1553 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1554 } else if (cnt == 1) {
1555 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1556 if (!vsi) {
1557 dev_info(&pf->pdev->dev,
1558 "clear_stats vsi: bad vsi %d\n",
1559 vsi_seid);
1560 goto command_write_done;
1561 }
1562 i40e_vsi_reset_stats(vsi);
1563 dev_info(&pf->pdev->dev,
1564 "vsi clear stats called for vsi %d\n",
1565 vsi_seid);
1566 } else {
1567 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1568 }
1569 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) {
1570 i40e_pf_reset_stats(pf);
1571 dev_info(&pf->pdev->dev, "pf clear stats called\n");
1572 } else {
1573 dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n");
1574 }
1575 } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1576 struct i40e_aq_desc *desc;
1577 i40e_status ret;
1578
1579 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1580 if (!desc)
1581 goto command_write_done;
1582 cnt = sscanf(&cmd_buf[11],
1583 "%hx %hx %hx %hx %x %x %x %x %x %x",
1584 &desc->flags,
1585 &desc->opcode, &desc->datalen, &desc->retval,
1586 &desc->cookie_high, &desc->cookie_low,
1587 &desc->params.internal.param0,
1588 &desc->params.internal.param1,
1589 &desc->params.internal.param2,
1590 &desc->params.internal.param3);
1591 if (cnt != 10) {
1592 dev_info(&pf->pdev->dev,
1593 "send aq_cmd: bad command string, cnt=%d\n",
1594 cnt);
1595 kfree(desc);
1596 desc = NULL;
1597 goto command_write_done;
1598 }
1599 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1600 if (!ret) {
1601 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1602 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1603 dev_info(&pf->pdev->dev,
1604 "AQ command send failed Opcode %x AQ Error: %d\n",
1605 desc->opcode, pf->hw.aq.asq_last_status);
1606 } else {
1607 dev_info(&pf->pdev->dev,
1608 "AQ command send failed Opcode %x Status: %d\n",
1609 desc->opcode, ret);
1610 }
1611 dev_info(&pf->pdev->dev,
1612 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1613 desc->flags, desc->opcode, desc->datalen, desc->retval,
1614 desc->cookie_high, desc->cookie_low,
1615 desc->params.internal.param0,
1616 desc->params.internal.param1,
1617 desc->params.internal.param2,
1618 desc->params.internal.param3);
1619 kfree(desc);
1620 desc = NULL;
1621 } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1622 struct i40e_aq_desc *desc;
1623 i40e_status ret;
1624 u16 buffer_len;
1625 u8 *buff;
1626
1627 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1628 if (!desc)
1629 goto command_write_done;
1630 cnt = sscanf(&cmd_buf[20],
1631 "%hx %hx %hx %hx %x %x %x %x %x %x %hd",
1632 &desc->flags,
1633 &desc->opcode, &desc->datalen, &desc->retval,
1634 &desc->cookie_high, &desc->cookie_low,
1635 &desc->params.internal.param0,
1636 &desc->params.internal.param1,
1637 &desc->params.internal.param2,
1638 &desc->params.internal.param3,
1639 &buffer_len);
1640 if (cnt != 11) {
1641 dev_info(&pf->pdev->dev,
1642 "send indirect aq_cmd: bad command string, cnt=%d\n",
1643 cnt);
1644 kfree(desc);
1645 desc = NULL;
1646 goto command_write_done;
1647 }
1648 /* Just stub a buffer big enough in case user messed up */
1649 if (buffer_len == 0)
1650 buffer_len = 1280;
1651
1652 buff = kzalloc(buffer_len, GFP_KERNEL);
1653 if (!buff) {
1654 kfree(desc);
1655 desc = NULL;
1656 goto command_write_done;
1657 }
1658 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1659 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1660 buffer_len, NULL);
1661 if (!ret) {
1662 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1663 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1664 dev_info(&pf->pdev->dev,
1665 "AQ command send failed Opcode %x AQ Error: %d\n",
1666 desc->opcode, pf->hw.aq.asq_last_status);
1667 } else {
1668 dev_info(&pf->pdev->dev,
1669 "AQ command send failed Opcode %x Status: %d\n",
1670 desc->opcode, ret);
1671 }
1672 dev_info(&pf->pdev->dev,
1673 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1674 desc->flags, desc->opcode, desc->datalen, desc->retval,
1675 desc->cookie_high, desc->cookie_low,
1676 desc->params.internal.param0,
1677 desc->params.internal.param1,
1678 desc->params.internal.param2,
1679 desc->params.internal.param3);
1680 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1681 DUMP_PREFIX_OFFSET, 16, 1,
1682 buff, buffer_len, true);
1683 kfree(buff);
1684 buff = NULL;
1685 kfree(desc);
1686 desc = NULL;
1687 } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1688 (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1689 struct i40e_fdir_filter fd_data;
1690 u16 packet_len, i, j = 0;
1691 char *asc_packet;
1692 u8 *raw_packet;
1693 bool add = false;
1694 int ret;
1695
1696 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
1697 goto command_write_done;
1698
1699 if (strncmp(cmd_buf, "add", 3) == 0)
1700 add = true;
1701
1702 if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED))
1703 goto command_write_done;
1704
1705 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1706 GFP_KERNEL);
1707 if (!asc_packet)
1708 goto command_write_done;
1709
1710 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1711 GFP_KERNEL);
1712
1713 if (!raw_packet) {
1714 kfree(asc_packet);
1715 asc_packet = NULL;
1716 goto command_write_done;
1717 }
1718
1719 cnt = sscanf(&cmd_buf[13],
1720 "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s",
1721 &fd_data.q_index,
1722 &fd_data.flex_off, &fd_data.pctype,
1723 &fd_data.dest_vsi, &fd_data.dest_ctl,
1724 &fd_data.fd_status, &fd_data.cnt_index,
1725 &fd_data.fd_id, &packet_len, asc_packet);
1726 if (cnt != 10) {
1727 dev_info(&pf->pdev->dev,
1728 "program fd_filter: bad command string, cnt=%d\n",
1729 cnt);
1730 kfree(asc_packet);
1731 asc_packet = NULL;
1732 kfree(raw_packet);
1733 goto command_write_done;
1734 }
1735
1736 /* fix packet length if user entered 0 */
1737 if (packet_len == 0)
1738 packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE;
1739
1740 /* make sure to check the max as well */
1741 packet_len = min_t(u16,
1742 packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE);
1743
1744 for (i = 0; i < packet_len; i++) {
1745 sscanf(&asc_packet[j], "%2hhx ",
1746 &raw_packet[i]);
1747 j += 3;
1748 }
1749 dev_info(&pf->pdev->dev, "FD raw packet dump\n");
1750 print_hex_dump(KERN_INFO, "FD raw packet: ",
1751 DUMP_PREFIX_OFFSET, 16, 1,
1752 raw_packet, packet_len, true);
1753 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add);
1754 if (!ret) {
1755 dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1756 } else {
1757 dev_info(&pf->pdev->dev,
1758 "Filter command send failed %d\n", ret);
1759 }
1760 kfree(raw_packet);
1761 raw_packet = NULL;
1762 kfree(asc_packet);
1763 asc_packet = NULL;
1764 } else if (strncmp(cmd_buf, "fd-atr off", 10) == 0) {
1765 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false);
1766 } else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) {
1767 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true);
1768 } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1769 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1770 i40e_get_current_fd_count(pf));
1771 } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1772 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1773 int ret;
1774 ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1775 if (ret) {
1776 dev_info(&pf->pdev->dev,
1777 "Stop LLDP AQ command failed =0x%x\n",
1778 pf->hw.aq.asq_last_status);
1779 goto command_write_done;
1780 }
1781 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1782 pf->hw.mac.addr,
1783 I40E_ETH_P_LLDP, 0,
1784 pf->vsi[pf->lan_vsi]->seid,
1785 0, true, NULL, NULL);
1786 if (ret) {
1787 dev_info(&pf->pdev->dev,
1788 "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1789 __func__, pf->hw.aq.asq_last_status);
1790 goto command_write_done;
1791 }
1792 #ifdef CONFIG_I40E_DCB
1793 pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1794 DCB_CAP_DCBX_VER_IEEE;
1795 #endif /* CONFIG_I40E_DCB */
1796 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1797 int ret;
1798 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1799 pf->hw.mac.addr,
1800 I40E_ETH_P_LLDP, 0,
1801 pf->vsi[pf->lan_vsi]->seid,
1802 0, false, NULL, NULL);
1803 if (ret) {
1804 dev_info(&pf->pdev->dev,
1805 "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1806 __func__, pf->hw.aq.asq_last_status);
1807 /* Continue and start FW LLDP anyways */
1808 }
1809
1810 ret = i40e_aq_start_lldp(&pf->hw, NULL);
1811 if (ret) {
1812 dev_info(&pf->pdev->dev,
1813 "Start LLDP AQ command failed =0x%x\n",
1814 pf->hw.aq.asq_last_status);
1815 goto command_write_done;
1816 }
1817 #ifdef CONFIG_I40E_DCB
1818 pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1819 DCB_CAP_DCBX_VER_IEEE;
1820 #endif /* CONFIG_I40E_DCB */
1821 } else if (strncmp(&cmd_buf[5],
1822 "get local", 9) == 0) {
1823 u16 llen, rlen;
1824 int ret;
1825 u8 *buff;
1826 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1827 if (!buff)
1828 goto command_write_done;
1829
1830 ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1831 I40E_AQ_LLDP_MIB_LOCAL,
1832 buff, I40E_LLDPDU_SIZE,
1833 &llen, &rlen, NULL);
1834 if (ret) {
1835 dev_info(&pf->pdev->dev,
1836 "Get LLDP MIB (local) AQ command failed =0x%x\n",
1837 pf->hw.aq.asq_last_status);
1838 kfree(buff);
1839 buff = NULL;
1840 goto command_write_done;
1841 }
1842 dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1843 print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1844 DUMP_PREFIX_OFFSET, 16, 1,
1845 buff, I40E_LLDPDU_SIZE, true);
1846 kfree(buff);
1847 buff = NULL;
1848 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1849 u16 llen, rlen;
1850 int ret;
1851 u8 *buff;
1852 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1853 if (!buff)
1854 goto command_write_done;
1855
1856 ret = i40e_aq_get_lldp_mib(&pf->hw,
1857 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1858 I40E_AQ_LLDP_MIB_REMOTE,
1859 buff, I40E_LLDPDU_SIZE,
1860 &llen, &rlen, NULL);
1861 if (ret) {
1862 dev_info(&pf->pdev->dev,
1863 "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1864 pf->hw.aq.asq_last_status);
1865 kfree(buff);
1866 buff = NULL;
1867 goto command_write_done;
1868 }
1869 dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1870 print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1871 DUMP_PREFIX_OFFSET, 16, 1,
1872 buff, I40E_LLDPDU_SIZE, true);
1873 kfree(buff);
1874 buff = NULL;
1875 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1876 int ret;
1877 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1878 true, NULL);
1879 if (ret) {
1880 dev_info(&pf->pdev->dev,
1881 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1882 pf->hw.aq.asq_last_status);
1883 goto command_write_done;
1884 }
1885 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1886 int ret;
1887 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1888 false, NULL);
1889 if (ret) {
1890 dev_info(&pf->pdev->dev,
1891 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1892 pf->hw.aq.asq_last_status);
1893 goto command_write_done;
1894 }
1895 }
1896 } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1897 u16 buffer_len, bytes;
1898 u16 module;
1899 u32 offset;
1900 u16 *buff;
1901 int ret;
1902
1903 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1904 &module, &offset, &buffer_len);
1905 if (cnt == 0) {
1906 module = 0;
1907 offset = 0;
1908 buffer_len = 0;
1909 } else if (cnt == 1) {
1910 offset = 0;
1911 buffer_len = 0;
1912 } else if (cnt == 2) {
1913 buffer_len = 0;
1914 } else if (cnt > 3) {
1915 dev_info(&pf->pdev->dev,
1916 "nvm read: bad command string, cnt=%d\n", cnt);
1917 goto command_write_done;
1918 }
1919
1920 /* set the max length */
1921 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1922
1923 bytes = 2 * buffer_len;
1924
1925 /* read at least 1k bytes, no more than 4kB */
1926 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1927 buff = kzalloc(bytes, GFP_KERNEL);
1928 if (!buff)
1929 goto command_write_done;
1930
1931 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1932 if (ret) {
1933 dev_info(&pf->pdev->dev,
1934 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1935 ret, pf->hw.aq.asq_last_status);
1936 kfree(buff);
1937 goto command_write_done;
1938 }
1939
1940 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1941 bytes, (u8 *)buff, true, NULL);
1942 i40e_release_nvm(&pf->hw);
1943 if (ret) {
1944 dev_info(&pf->pdev->dev,
1945 "Read NVM AQ failed err=%d status=0x%x\n",
1946 ret, pf->hw.aq.asq_last_status);
1947 } else {
1948 dev_info(&pf->pdev->dev,
1949 "Read NVM module=0x%x offset=0x%x words=%d\n",
1950 module, offset, buffer_len);
1951 if (bytes)
1952 print_hex_dump(KERN_INFO, "NVM Dump: ",
1953 DUMP_PREFIX_OFFSET, 16, 2,
1954 buff, bytes, true);
1955 }
1956 kfree(buff);
1957 buff = NULL;
1958 } else {
1959 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1960 dev_info(&pf->pdev->dev, "available commands\n");
1961 dev_info(&pf->pdev->dev, " add vsi [relay_seid]\n");
1962 dev_info(&pf->pdev->dev, " del vsi [vsi_seid]\n");
1963 dev_info(&pf->pdev->dev, " add relay <uplink_seid> <vsi_seid>\n");
1964 dev_info(&pf->pdev->dev, " del relay <relay_seid>\n");
1965 dev_info(&pf->pdev->dev, " add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1966 dev_info(&pf->pdev->dev, " del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1967 dev_info(&pf->pdev->dev, " add pvid <vsi_seid> <vid>\n");
1968 dev_info(&pf->pdev->dev, " del pvid <vsi_seid>\n");
1969 dev_info(&pf->pdev->dev, " dump switch\n");
1970 dev_info(&pf->pdev->dev, " dump vsi [seid]\n");
1971 dev_info(&pf->pdev->dev, " dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1972 dev_info(&pf->pdev->dev, " dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1973 dev_info(&pf->pdev->dev, " dump desc aq\n");
1974 dev_info(&pf->pdev->dev, " dump stats\n");
1975 dev_info(&pf->pdev->dev, " dump reset stats\n");
1976 dev_info(&pf->pdev->dev, " msg_enable [level]\n");
1977 dev_info(&pf->pdev->dev, " read <reg>\n");
1978 dev_info(&pf->pdev->dev, " write <reg> <value>\n");
1979 dev_info(&pf->pdev->dev, " clear_stats vsi [seid]\n");
1980 dev_info(&pf->pdev->dev, " clear_stats pf\n");
1981 dev_info(&pf->pdev->dev, " pfr\n");
1982 dev_info(&pf->pdev->dev, " corer\n");
1983 dev_info(&pf->pdev->dev, " globr\n");
1984 dev_info(&pf->pdev->dev, " send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1985 dev_info(&pf->pdev->dev, " send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1986 dev_info(&pf->pdev->dev, " add fd_filter <dest q_index> <flex_off> <pctype> <dest_vsi> <dest_ctl> <fd_status> <cnt_index> <fd_id> <packet_len> <packet>\n");
1987 dev_info(&pf->pdev->dev, " rem fd_filter <dest q_index> <flex_off> <pctype> <dest_vsi> <dest_ctl> <fd_status> <cnt_index> <fd_id> <packet_len> <packet>\n");
1988 dev_info(&pf->pdev->dev, " fd-atr off\n");
1989 dev_info(&pf->pdev->dev, " fd-atr on\n");
1990 dev_info(&pf->pdev->dev, " fd current cnt");
1991 dev_info(&pf->pdev->dev, " lldp start\n");
1992 dev_info(&pf->pdev->dev, " lldp stop\n");
1993 dev_info(&pf->pdev->dev, " lldp get local\n");
1994 dev_info(&pf->pdev->dev, " lldp get remote\n");
1995 dev_info(&pf->pdev->dev, " lldp event on\n");
1996 dev_info(&pf->pdev->dev, " lldp event off\n");
1997 dev_info(&pf->pdev->dev, " nvm read [module] [word_offset] [word_count]\n");
1998 }
1999
2000 command_write_done:
2001 kfree(cmd_buf);
2002 cmd_buf = NULL;
2003 return count;
2004 }
2005
2006 static const struct file_operations i40e_dbg_command_fops = {
2007 .owner = THIS_MODULE,
2008 .open = simple_open,
2009 .read = i40e_dbg_command_read,
2010 .write = i40e_dbg_command_write,
2011 };
2012
2013 /**************************************************************
2014 * netdev_ops
2015 * The netdev_ops entry in debugfs is for giving the driver commands
2016 * to be executed from the netdev operations.
2017 **************************************************************/
2018 static char i40e_dbg_netdev_ops_buf[256] = "hello world";
2019
2020 /**
2021 * i40e_dbg_netdev_ops - read for netdev_ops datum
2022 * @filp: the opened file
2023 * @buffer: where to write the data for the user to read
2024 * @count: the size of the user's buffer
2025 * @ppos: file position offset
2026 **/
2027 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
2028 size_t count, loff_t *ppos)
2029 {
2030 struct i40e_pf *pf = filp->private_data;
2031 int bytes_not_copied;
2032 int buf_size = 256;
2033 char *buf;
2034 int len;
2035
2036 /* don't allow partal reads */
2037 if (*ppos != 0)
2038 return 0;
2039 if (count < buf_size)
2040 return -ENOSPC;
2041
2042 buf = kzalloc(buf_size, GFP_KERNEL);
2043 if (!buf)
2044 return -ENOSPC;
2045
2046 len = snprintf(buf, buf_size, "%s: %s\n",
2047 pf->vsi[pf->lan_vsi]->netdev->name,
2048 i40e_dbg_netdev_ops_buf);
2049
2050 bytes_not_copied = copy_to_user(buffer, buf, len);
2051 kfree(buf);
2052
2053 if (bytes_not_copied < 0)
2054 return bytes_not_copied;
2055
2056 *ppos = len;
2057 return len;
2058 }
2059
2060 /**
2061 * i40e_dbg_netdev_ops_write - write into netdev_ops datum
2062 * @filp: the opened file
2063 * @buffer: where to find the user's data
2064 * @count: the length of the user's data
2065 * @ppos: file position offset
2066 **/
2067 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
2068 const char __user *buffer,
2069 size_t count, loff_t *ppos)
2070 {
2071 struct i40e_pf *pf = filp->private_data;
2072 int bytes_not_copied;
2073 struct i40e_vsi *vsi;
2074 char *buf_tmp;
2075 int vsi_seid;
2076 int i, cnt;
2077
2078 /* don't allow partial writes */
2079 if (*ppos != 0)
2080 return 0;
2081 if (count >= sizeof(i40e_dbg_netdev_ops_buf))
2082 return -ENOSPC;
2083
2084 memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
2085 bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
2086 buffer, count);
2087 if (bytes_not_copied < 0)
2088 return bytes_not_copied;
2089 else if (bytes_not_copied > 0)
2090 count -= bytes_not_copied;
2091 i40e_dbg_netdev_ops_buf[count] = '\0';
2092
2093 buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
2094 if (buf_tmp) {
2095 *buf_tmp = '\0';
2096 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
2097 }
2098
2099 if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
2100 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2101 if (cnt != 1) {
2102 dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
2103 goto netdev_ops_write_done;
2104 }
2105 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2106 if (!vsi) {
2107 dev_info(&pf->pdev->dev,
2108 "tx_timeout: VSI %d not found\n", vsi_seid);
2109 } else if (!vsi->netdev) {
2110 dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n",
2111 vsi_seid);
2112 } else if (test_bit(__I40E_DOWN, &vsi->state)) {
2113 dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n",
2114 vsi_seid);
2115 } else if (rtnl_trylock()) {
2116 vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
2117 rtnl_unlock();
2118 dev_info(&pf->pdev->dev, "tx_timeout called\n");
2119 } else {
2120 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2121 }
2122 } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
2123 int mtu;
2124 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
2125 &vsi_seid, &mtu);
2126 if (cnt != 2) {
2127 dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
2128 goto netdev_ops_write_done;
2129 }
2130 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2131 if (!vsi) {
2132 dev_info(&pf->pdev->dev,
2133 "change_mtu: VSI %d not found\n", vsi_seid);
2134 } else if (!vsi->netdev) {
2135 dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
2136 vsi_seid);
2137 } else if (rtnl_trylock()) {
2138 vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
2139 mtu);
2140 rtnl_unlock();
2141 dev_info(&pf->pdev->dev, "change_mtu called\n");
2142 } else {
2143 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2144 }
2145
2146 } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
2147 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2148 if (cnt != 1) {
2149 dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
2150 goto netdev_ops_write_done;
2151 }
2152 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2153 if (!vsi) {
2154 dev_info(&pf->pdev->dev,
2155 "set_rx_mode: VSI %d not found\n", vsi_seid);
2156 } else if (!vsi->netdev) {
2157 dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
2158 vsi_seid);
2159 } else if (rtnl_trylock()) {
2160 vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
2161 rtnl_unlock();
2162 dev_info(&pf->pdev->dev, "set_rx_mode called\n");
2163 } else {
2164 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2165 }
2166
2167 } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
2168 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
2169 if (cnt != 1) {
2170 dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
2171 goto netdev_ops_write_done;
2172 }
2173 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2174 if (!vsi) {
2175 dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
2176 vsi_seid);
2177 } else if (!vsi->netdev) {
2178 dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
2179 vsi_seid);
2180 } else {
2181 for (i = 0; i < vsi->num_q_vectors; i++)
2182 napi_schedule(&vsi->q_vectors[i]->napi);
2183 dev_info(&pf->pdev->dev, "napi called\n");
2184 }
2185 } else {
2186 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2187 i40e_dbg_netdev_ops_buf);
2188 dev_info(&pf->pdev->dev, "available commands\n");
2189 dev_info(&pf->pdev->dev, " tx_timeout <vsi_seid>\n");
2190 dev_info(&pf->pdev->dev, " change_mtu <vsi_seid> <mtu>\n");
2191 dev_info(&pf->pdev->dev, " set_rx_mode <vsi_seid>\n");
2192 dev_info(&pf->pdev->dev, " napi <vsi_seid>\n");
2193 }
2194 netdev_ops_write_done:
2195 return count;
2196 }
2197
2198 static const struct file_operations i40e_dbg_netdev_ops_fops = {
2199 .owner = THIS_MODULE,
2200 .open = simple_open,
2201 .read = i40e_dbg_netdev_ops_read,
2202 .write = i40e_dbg_netdev_ops_write,
2203 };
2204
2205 /**
2206 * i40e_dbg_pf_init - setup the debugfs directory for the pf
2207 * @pf: the pf that is starting up
2208 **/
2209 void i40e_dbg_pf_init(struct i40e_pf *pf)
2210 {
2211 struct dentry *pfile;
2212 const char *name = pci_name(pf->pdev);
2213 const struct device *dev = &pf->pdev->dev;
2214
2215 pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
2216 if (!pf->i40e_dbg_pf)
2217 return;
2218
2219 pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
2220 &i40e_dbg_command_fops);
2221 if (!pfile)
2222 goto create_failed;
2223
2224 pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2225 &i40e_dbg_dump_fops);
2226 if (!pfile)
2227 goto create_failed;
2228
2229 pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
2230 &i40e_dbg_netdev_ops_fops);
2231 if (!pfile)
2232 goto create_failed;
2233
2234 return;
2235
2236 create_failed:
2237 dev_info(dev, "debugfs dir/file for %s failed\n", name);
2238 debugfs_remove_recursive(pf->i40e_dbg_pf);
2239 return;
2240 }
2241
2242 /**
2243 * i40e_dbg_pf_exit - clear out the pf's debugfs entries
2244 * @pf: the pf that is stopping
2245 **/
2246 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2247 {
2248 debugfs_remove_recursive(pf->i40e_dbg_pf);
2249 pf->i40e_dbg_pf = NULL;
2250
2251 kfree(i40e_dbg_dump_buf);
2252 i40e_dbg_dump_buf = NULL;
2253 }
2254
2255 /**
2256 * i40e_dbg_init - start up debugfs for the driver
2257 **/
2258 void i40e_dbg_init(void)
2259 {
2260 i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2261 if (!i40e_dbg_root)
2262 pr_info("init of debugfs failed\n");
2263 }
2264
2265 /**
2266 * i40e_dbg_exit - clean out the driver's debugfs entries
2267 **/
2268 void i40e_dbg_exit(void)
2269 {
2270 debugfs_remove_recursive(i40e_dbg_root);
2271 i40e_dbg_root = NULL;
2272 }
2273
2274 #endif /* CONFIG_DEBUG_FS */
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