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Merge tag 'for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux...
[deliverable/linux.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
796 ring = kmemdup(is_rx_ring
797 ? vsi->rx_rings[ring_id] : vsi->tx_rings[ring_id],
798 sizeof(*ring), GFP_KERNEL);
799 if (!ring)
800 return;
801
802 if (cnt == 2) {
803 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
804 vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
805 for (i = 0; i < ring->count; i++) {
806 if (!is_rx_ring) {
807 txd = I40E_TX_DESC(ring, i);
808 dev_info(&pf->pdev->dev,
809 " d[%03i] = 0x%016llx 0x%016llx\n",
810 i, txd->buffer_addr,
811 txd->cmd_type_offset_bsz);
812 } else if (sizeof(union i40e_rx_desc) ==
813 sizeof(union i40e_16byte_rx_desc)) {
814 rxd = I40E_RX_DESC(ring, i);
815 dev_info(&pf->pdev->dev,
816 " d[%03i] = 0x%016llx 0x%016llx\n",
817 i, rxd->read.pkt_addr,
818 rxd->read.hdr_addr);
819 } else {
820 rxd = I40E_RX_DESC(ring, i);
821 dev_info(&pf->pdev->dev,
822 " d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
823 i, rxd->read.pkt_addr,
824 rxd->read.hdr_addr,
825 rxd->read.rsvd1, rxd->read.rsvd2);
826 }
827 }
828 } else if (cnt == 3) {
829 if (desc_n >= ring->count || desc_n < 0) {
830 dev_info(&pf->pdev->dev,
831 "descriptor %d not found\n", desc_n);
832 goto out;
833 }
834 if (!is_rx_ring) {
835 txd = I40E_TX_DESC(ring, desc_n);
836 dev_info(&pf->pdev->dev,
837 "vsi = %02i tx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
838 vsi_seid, ring_id, desc_n,
839 txd->buffer_addr, txd->cmd_type_offset_bsz);
840 } else if (sizeof(union i40e_rx_desc) ==
841 sizeof(union i40e_16byte_rx_desc)) {
842 rxd = I40E_RX_DESC(ring, desc_n);
843 dev_info(&pf->pdev->dev,
844 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
845 vsi_seid, ring_id, desc_n,
846 rxd->read.pkt_addr, rxd->read.hdr_addr);
847 } else {
848 rxd = I40E_RX_DESC(ring, desc_n);
849 dev_info(&pf->pdev->dev,
850 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
851 vsi_seid, ring_id, desc_n,
852 rxd->read.pkt_addr, rxd->read.hdr_addr,
853 rxd->read.rsvd1, rxd->read.rsvd2);
854 }
855 } else {
856 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
857 }
858
859 out:
860 kfree(ring);
861 }
862
863 /**
864 * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
865 * @pf: the i40e_pf created in command write
866 **/
867 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
868 {
869 int i;
870
871 for (i = 0; i < pf->num_alloc_vsi; i++)
872 if (pf->vsi[i])
873 dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
874 i, pf->vsi[i]->seid);
875 }
876
877 /**
878 * i40e_dbg_dump_stats - handles dump stats write into command datum
879 * @pf: the i40e_pf created in command write
880 * @estats: the eth stats structure to be dumped
881 **/
882 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
883 struct i40e_eth_stats *estats)
884 {
885 dev_info(&pf->pdev->dev, " ethstats:\n");
886 dev_info(&pf->pdev->dev,
887 " rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
888 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
889 dev_info(&pf->pdev->dev,
890 " rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
891 estats->rx_broadcast, estats->rx_discards);
892 dev_info(&pf->pdev->dev,
893 " rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
894 estats->rx_unknown_protocol, estats->tx_bytes);
895 dev_info(&pf->pdev->dev,
896 " tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
897 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
898 dev_info(&pf->pdev->dev,
899 " tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
900 estats->tx_discards, estats->tx_errors);
901 }
902
903 /**
904 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
905 * @pf: the i40e_pf created in command write
906 * @seid: the seid the user put in
907 **/
908 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
909 {
910 struct i40e_veb *veb;
911
912 if ((seid < I40E_BASE_VEB_SEID) ||
913 (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
914 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
915 return;
916 }
917
918 veb = i40e_dbg_find_veb(pf, seid);
919 if (!veb) {
920 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
921 return;
922 }
923 dev_info(&pf->pdev->dev,
924 "veb idx=%d,%d stats_ic=%d seid=%d uplink=%d\n",
925 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
926 veb->uplink_seid);
927 i40e_dbg_dump_eth_stats(pf, &veb->stats);
928 }
929
930 /**
931 * i40e_dbg_dump_veb_all - dumps all known veb's stats
932 * @pf: the i40e_pf created in command write
933 **/
934 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
935 {
936 struct i40e_veb *veb;
937 int i;
938
939 for (i = 0; i < I40E_MAX_VEB; i++) {
940 veb = pf->veb[i];
941 if (veb)
942 i40e_dbg_dump_veb_seid(pf, veb->seid);
943 }
944 }
945
946 /**
947 * i40e_dbg_cmd_fd_ctrl - Enable/disable FD sideband/ATR
948 * @pf: the pf that would be altered
949 * @flag: flag that needs enabling or disabling
950 * @enable: Enable/disable FD SD/ATR
951 **/
952 static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable)
953 {
954 if (enable) {
955 pf->flags |= flag;
956 } else {
957 pf->flags &= ~flag;
958 pf->auto_disable_flags |= flag;
959 }
960 dev_info(&pf->pdev->dev, "requesting a pf reset\n");
961 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
962 }
963
964 #define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
965 /**
966 * i40e_dbg_command_write - write into command datum
967 * @filp: the opened file
968 * @buffer: where to find the user's data
969 * @count: the length of the user's data
970 * @ppos: file position offset
971 **/
972 static ssize_t i40e_dbg_command_write(struct file *filp,
973 const char __user *buffer,
974 size_t count, loff_t *ppos)
975 {
976 struct i40e_pf *pf = filp->private_data;
977 char *cmd_buf, *cmd_buf_tmp;
978 int bytes_not_copied;
979 struct i40e_vsi *vsi;
980 int vsi_seid;
981 int veb_seid;
982 int cnt;
983
984 /* don't allow partial writes */
985 if (*ppos != 0)
986 return 0;
987
988 cmd_buf = kzalloc(count + 1, GFP_KERNEL);
989 if (!cmd_buf)
990 return count;
991 bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
992 if (bytes_not_copied < 0) {
993 kfree(cmd_buf);
994 return bytes_not_copied;
995 }
996 if (bytes_not_copied > 0)
997 count -= bytes_not_copied;
998 cmd_buf[count] = '\0';
999
1000 cmd_buf_tmp = strchr(cmd_buf, '\n');
1001 if (cmd_buf_tmp) {
1002 *cmd_buf_tmp = '\0';
1003 count = cmd_buf_tmp - cmd_buf + 1;
1004 }
1005
1006 if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1007 vsi_seid = -1;
1008 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1009 if (cnt == 0) {
1010 /* default to PF VSI */
1011 vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1012 } else if (vsi_seid < 0) {
1013 dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1014 vsi_seid);
1015 goto command_write_done;
1016 }
1017
1018 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1019 if (vsi)
1020 dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1021 vsi->seid, vsi->uplink_seid);
1022 else
1023 dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1024
1025 } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1026 sscanf(&cmd_buf[7], "%i", &vsi_seid);
1027 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1028 if (!vsi) {
1029 dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1030 vsi_seid);
1031 goto command_write_done;
1032 }
1033
1034 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1035 i40e_vsi_release(vsi);
1036
1037 } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1038 struct i40e_veb *veb;
1039 int uplink_seid, i;
1040
1041 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1042 if (cnt != 2) {
1043 dev_info(&pf->pdev->dev,
1044 "add relay: bad command string, cnt=%d\n",
1045 cnt);
1046 goto command_write_done;
1047 } else if (uplink_seid < 0) {
1048 dev_info(&pf->pdev->dev,
1049 "add relay %d: bad uplink seid\n",
1050 uplink_seid);
1051 goto command_write_done;
1052 }
1053
1054 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1055 if (!vsi) {
1056 dev_info(&pf->pdev->dev,
1057 "add relay: VSI %d not found\n", vsi_seid);
1058 goto command_write_done;
1059 }
1060
1061 for (i = 0; i < I40E_MAX_VEB; i++)
1062 if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1063 break;
1064 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1065 uplink_seid != pf->mac_seid) {
1066 dev_info(&pf->pdev->dev,
1067 "add relay: relay uplink %d not found\n",
1068 uplink_seid);
1069 goto command_write_done;
1070 }
1071
1072 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1073 vsi->tc_config.enabled_tc);
1074 if (veb)
1075 dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1076 else
1077 dev_info(&pf->pdev->dev, "add relay failed\n");
1078
1079 } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1080 int i;
1081 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1082 if (cnt != 1) {
1083 dev_info(&pf->pdev->dev,
1084 "del relay: bad command string, cnt=%d\n",
1085 cnt);
1086 goto command_write_done;
1087 } else if (veb_seid < 0) {
1088 dev_info(&pf->pdev->dev,
1089 "del relay %d: bad relay seid\n", veb_seid);
1090 goto command_write_done;
1091 }
1092
1093 /* find the veb */
1094 for (i = 0; i < I40E_MAX_VEB; i++)
1095 if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1096 break;
1097 if (i >= I40E_MAX_VEB) {
1098 dev_info(&pf->pdev->dev,
1099 "del relay: relay %d not found\n", veb_seid);
1100 goto command_write_done;
1101 }
1102
1103 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1104 i40e_veb_release(pf->veb[i]);
1105
1106 } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
1107 struct i40e_mac_filter *f;
1108 int vlan = 0;
1109 u8 ma[6];
1110 int ret;
1111
1112 cnt = sscanf(&cmd_buf[11],
1113 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1114 &vsi_seid,
1115 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1116 &vlan);
1117 if (cnt == 7) {
1118 vlan = 0;
1119 } else if (cnt != 8) {
1120 dev_info(&pf->pdev->dev,
1121 "add macaddr: bad command string, cnt=%d\n",
1122 cnt);
1123 goto command_write_done;
1124 }
1125
1126 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1127 if (!vsi) {
1128 dev_info(&pf->pdev->dev,
1129 "add macaddr: VSI %d not found\n", vsi_seid);
1130 goto command_write_done;
1131 }
1132
1133 f = i40e_add_filter(vsi, ma, vlan, false, false);
1134 ret = i40e_sync_vsi_filters(vsi);
1135 if (f && !ret)
1136 dev_info(&pf->pdev->dev,
1137 "add macaddr: %pM vlan=%d added to VSI %d\n",
1138 ma, vlan, vsi_seid);
1139 else
1140 dev_info(&pf->pdev->dev,
1141 "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1142 ma, vlan, vsi_seid, f, ret);
1143
1144 } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
1145 int vlan = 0;
1146 u8 ma[6];
1147 int ret;
1148
1149 cnt = sscanf(&cmd_buf[11],
1150 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1151 &vsi_seid,
1152 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1153 &vlan);
1154 if (cnt == 7) {
1155 vlan = 0;
1156 } else if (cnt != 8) {
1157 dev_info(&pf->pdev->dev,
1158 "del macaddr: bad command string, cnt=%d\n",
1159 cnt);
1160 goto command_write_done;
1161 }
1162
1163 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1164 if (!vsi) {
1165 dev_info(&pf->pdev->dev,
1166 "del macaddr: VSI %d not found\n", vsi_seid);
1167 goto command_write_done;
1168 }
1169
1170 i40e_del_filter(vsi, ma, vlan, false, false);
1171 ret = i40e_sync_vsi_filters(vsi);
1172 if (!ret)
1173 dev_info(&pf->pdev->dev,
1174 "del macaddr: %pM vlan=%d removed from VSI %d\n",
1175 ma, vlan, vsi_seid);
1176 else
1177 dev_info(&pf->pdev->dev,
1178 "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1179 ma, vlan, vsi_seid, ret);
1180
1181 } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
1182 i40e_status ret;
1183 u16 vid;
1184 unsigned int v;
1185
1186 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1187 if (cnt != 2) {
1188 dev_info(&pf->pdev->dev,
1189 "add pvid: bad command string, cnt=%d\n", cnt);
1190 goto command_write_done;
1191 }
1192
1193 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1194 if (!vsi) {
1195 dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1196 vsi_seid);
1197 goto command_write_done;
1198 }
1199
1200 vid = v;
1201 ret = i40e_vsi_add_pvid(vsi, vid);
1202 if (!ret)
1203 dev_info(&pf->pdev->dev,
1204 "add pvid: %d added to VSI %d\n",
1205 vid, vsi_seid);
1206 else
1207 dev_info(&pf->pdev->dev,
1208 "add pvid: %d to VSI %d failed, ret=%d\n",
1209 vid, vsi_seid, ret);
1210
1211 } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1212
1213 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1214 if (cnt != 1) {
1215 dev_info(&pf->pdev->dev,
1216 "del pvid: bad command string, cnt=%d\n",
1217 cnt);
1218 goto command_write_done;
1219 }
1220
1221 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1222 if (!vsi) {
1223 dev_info(&pf->pdev->dev,
1224 "del pvid: VSI %d not found\n", vsi_seid);
1225 goto command_write_done;
1226 }
1227
1228 i40e_vsi_remove_pvid(vsi);
1229 dev_info(&pf->pdev->dev,
1230 "del pvid: removed from VSI %d\n", vsi_seid);
1231
1232 } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1233 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1234 i40e_fetch_switch_configuration(pf, true);
1235 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1236 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1237 if (cnt > 0)
1238 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1239 else
1240 i40e_dbg_dump_vsi_no_seid(pf);
1241 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1242 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1243 if (cnt > 0)
1244 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1245 else
1246 i40e_dbg_dump_veb_all(pf);
1247 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1248 int ring_id, desc_n;
1249 if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
1250 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1251 &vsi_seid, &ring_id, &desc_n);
1252 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1253 desc_n, pf, true);
1254 } else if (strncmp(&cmd_buf[10], "tx", 2)
1255 == 0) {
1256 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1257 &vsi_seid, &ring_id, &desc_n);
1258 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1259 desc_n, pf, false);
1260 } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1261 i40e_dbg_dump_aq_desc(pf);
1262 } else {
1263 dev_info(&pf->pdev->dev,
1264 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1265 dev_info(&pf->pdev->dev,
1266 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1267 dev_info(&pf->pdev->dev, "dump desc aq\n");
1268 }
1269 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1270 dev_info(&pf->pdev->dev,
1271 "core reset count: %d\n", pf->corer_count);
1272 dev_info(&pf->pdev->dev,
1273 "global reset count: %d\n", pf->globr_count);
1274 dev_info(&pf->pdev->dev,
1275 "emp reset count: %d\n", pf->empr_count);
1276 dev_info(&pf->pdev->dev,
1277 "pf reset count: %d\n", pf->pfr_count);
1278 dev_info(&pf->pdev->dev,
1279 "pf tx sluggish count: %d\n",
1280 pf->tx_sluggish_count);
1281 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1282 struct i40e_aqc_query_port_ets_config_resp *bw_data;
1283 struct i40e_dcbx_config *cfg =
1284 &pf->hw.local_dcbx_config;
1285 struct i40e_dcbx_config *r_cfg =
1286 &pf->hw.remote_dcbx_config;
1287 int i, ret;
1288
1289 bw_data = kzalloc(sizeof(
1290 struct i40e_aqc_query_port_ets_config_resp),
1291 GFP_KERNEL);
1292 if (!bw_data) {
1293 ret = -ENOMEM;
1294 goto command_write_done;
1295 }
1296
1297 ret = i40e_aq_query_port_ets_config(&pf->hw,
1298 pf->mac_seid,
1299 bw_data, NULL);
1300 if (ret) {
1301 dev_info(&pf->pdev->dev,
1302 "Query Port ETS Config AQ command failed =0x%x\n",
1303 pf->hw.aq.asq_last_status);
1304 kfree(bw_data);
1305 bw_data = NULL;
1306 goto command_write_done;
1307 }
1308 dev_info(&pf->pdev->dev,
1309 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1310 bw_data->tc_valid_bits,
1311 bw_data->tc_strict_priority_bits,
1312 le16_to_cpu(bw_data->tc_bw_max[0]),
1313 le16_to_cpu(bw_data->tc_bw_max[1]));
1314 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1315 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1316 bw_data->tc_bw_share_credits[i],
1317 le16_to_cpu(bw_data->tc_bw_limits[i]));
1318 }
1319
1320 kfree(bw_data);
1321 bw_data = NULL;
1322
1323 dev_info(&pf->pdev->dev,
1324 "port dcbx_mode=%d\n", cfg->dcbx_mode);
1325 dev_info(&pf->pdev->dev,
1326 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1327 cfg->etscfg.willing, cfg->etscfg.cbs,
1328 cfg->etscfg.maxtcs);
1329 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1330 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1331 i, cfg->etscfg.prioritytable[i],
1332 cfg->etscfg.tcbwtable[i],
1333 cfg->etscfg.tsatable[i]);
1334 }
1335 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1336 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1337 i, cfg->etsrec.prioritytable[i],
1338 cfg->etsrec.tcbwtable[i],
1339 cfg->etsrec.tsatable[i]);
1340 }
1341 dev_info(&pf->pdev->dev,
1342 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1343 cfg->pfc.willing, cfg->pfc.mbc,
1344 cfg->pfc.pfccap, cfg->pfc.pfcenable);
1345 dev_info(&pf->pdev->dev,
1346 "port app_table: num_apps=%d\n", cfg->numapps);
1347 for (i = 0; i < cfg->numapps; i++) {
1348 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1349 i, cfg->app[i].priority,
1350 cfg->app[i].selector,
1351 cfg->app[i].protocolid);
1352 }
1353 /* Peer TLV DCBX data */
1354 dev_info(&pf->pdev->dev,
1355 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1356 r_cfg->etscfg.willing,
1357 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1358 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1359 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1360 i, r_cfg->etscfg.prioritytable[i],
1361 r_cfg->etscfg.tcbwtable[i],
1362 r_cfg->etscfg.tsatable[i]);
1363 }
1364 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1365 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1366 i, r_cfg->etsrec.prioritytable[i],
1367 r_cfg->etsrec.tcbwtable[i],
1368 r_cfg->etsrec.tsatable[i]);
1369 }
1370 dev_info(&pf->pdev->dev,
1371 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1372 r_cfg->pfc.willing,
1373 r_cfg->pfc.mbc,
1374 r_cfg->pfc.pfccap,
1375 r_cfg->pfc.pfcenable);
1376 dev_info(&pf->pdev->dev,
1377 "remote port app_table: num_apps=%d\n",
1378 r_cfg->numapps);
1379 for (i = 0; i < r_cfg->numapps; i++) {
1380 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1381 i, r_cfg->app[i].priority,
1382 r_cfg->app[i].selector,
1383 r_cfg->app[i].protocolid);
1384 }
1385 } else {
1386 dev_info(&pf->pdev->dev,
1387 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1388 dev_info(&pf->pdev->dev, "dump switch\n");
1389 dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1390 dev_info(&pf->pdev->dev, "dump reset stats\n");
1391 dev_info(&pf->pdev->dev, "dump port\n");
1392 dev_info(&pf->pdev->dev,
1393 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1394 }
1395
1396 } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1397 u32 level;
1398 cnt = sscanf(&cmd_buf[10], "%i", &level);
1399 if (cnt) {
1400 if (I40E_DEBUG_USER & level) {
1401 pf->hw.debug_mask = level;
1402 dev_info(&pf->pdev->dev,
1403 "set hw.debug_mask = 0x%08x\n",
1404 pf->hw.debug_mask);
1405 }
1406 pf->msg_enable = level;
1407 dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1408 pf->msg_enable);
1409 } else {
1410 dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1411 pf->msg_enable);
1412 }
1413 } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1414 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1415 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
1416
1417 } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1418 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1419 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED));
1420
1421 } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1422 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1423 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED));
1424
1425 } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1426 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
1427 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED));
1428
1429 } else if (strncmp(cmd_buf, "read", 4) == 0) {
1430 u32 address;
1431 u32 value;
1432 cnt = sscanf(&cmd_buf[4], "%i", &address);
1433 if (cnt != 1) {
1434 dev_info(&pf->pdev->dev, "read <reg>\n");
1435 goto command_write_done;
1436 }
1437
1438 /* check the range on address */
1439 if (address >= I40E_MAX_REGISTER) {
1440 dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n",
1441 address);
1442 goto command_write_done;
1443 }
1444
1445 value = rd32(&pf->hw, address);
1446 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1447 address, value);
1448
1449 } else if (strncmp(cmd_buf, "write", 5) == 0) {
1450 u32 address, value;
1451 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1452 if (cnt != 2) {
1453 dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1454 goto command_write_done;
1455 }
1456
1457 /* check the range on address */
1458 if (address >= I40E_MAX_REGISTER) {
1459 dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n",
1460 address);
1461 goto command_write_done;
1462 }
1463 wr32(&pf->hw, address, value);
1464 value = rd32(&pf->hw, address);
1465 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1466 address, value);
1467 } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1468 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1469 cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1470 if (cnt == 0) {
1471 int i;
1472 for (i = 0; i < pf->num_alloc_vsi; i++)
1473 i40e_vsi_reset_stats(pf->vsi[i]);
1474 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1475 } else if (cnt == 1) {
1476 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1477 if (!vsi) {
1478 dev_info(&pf->pdev->dev,
1479 "clear_stats vsi: bad vsi %d\n",
1480 vsi_seid);
1481 goto command_write_done;
1482 }
1483 i40e_vsi_reset_stats(vsi);
1484 dev_info(&pf->pdev->dev,
1485 "vsi clear stats called for vsi %d\n",
1486 vsi_seid);
1487 } else {
1488 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1489 }
1490 } else if (strncmp(&cmd_buf[12], "pf", 2) == 0) {
1491 i40e_pf_reset_stats(pf);
1492 dev_info(&pf->pdev->dev, "pf clear stats called\n");
1493 } else {
1494 dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats pf\n");
1495 }
1496 } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1497 struct i40e_aq_desc *desc;
1498 i40e_status ret;
1499
1500 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1501 if (!desc)
1502 goto command_write_done;
1503 cnt = sscanf(&cmd_buf[11],
1504 "%hi %hi %hi %hi %i %i %i %i %i %i",
1505 &desc->flags,
1506 &desc->opcode, &desc->datalen, &desc->retval,
1507 &desc->cookie_high, &desc->cookie_low,
1508 &desc->params.internal.param0,
1509 &desc->params.internal.param1,
1510 &desc->params.internal.param2,
1511 &desc->params.internal.param3);
1512 if (cnt != 10) {
1513 dev_info(&pf->pdev->dev,
1514 "send aq_cmd: bad command string, cnt=%d\n",
1515 cnt);
1516 kfree(desc);
1517 desc = NULL;
1518 goto command_write_done;
1519 }
1520 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1521 if (!ret) {
1522 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1523 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1524 dev_info(&pf->pdev->dev,
1525 "AQ command send failed Opcode %x AQ Error: %d\n",
1526 desc->opcode, pf->hw.aq.asq_last_status);
1527 } else {
1528 dev_info(&pf->pdev->dev,
1529 "AQ command send failed Opcode %x Status: %d\n",
1530 desc->opcode, ret);
1531 }
1532 dev_info(&pf->pdev->dev,
1533 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1534 desc->flags, desc->opcode, desc->datalen, desc->retval,
1535 desc->cookie_high, desc->cookie_low,
1536 desc->params.internal.param0,
1537 desc->params.internal.param1,
1538 desc->params.internal.param2,
1539 desc->params.internal.param3);
1540 kfree(desc);
1541 desc = NULL;
1542 } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1543 struct i40e_aq_desc *desc;
1544 i40e_status ret;
1545 u16 buffer_len;
1546 u8 *buff;
1547
1548 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1549 if (!desc)
1550 goto command_write_done;
1551 cnt = sscanf(&cmd_buf[20],
1552 "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1553 &desc->flags,
1554 &desc->opcode, &desc->datalen, &desc->retval,
1555 &desc->cookie_high, &desc->cookie_low,
1556 &desc->params.internal.param0,
1557 &desc->params.internal.param1,
1558 &desc->params.internal.param2,
1559 &desc->params.internal.param3,
1560 &buffer_len);
1561 if (cnt != 11) {
1562 dev_info(&pf->pdev->dev,
1563 "send indirect aq_cmd: bad command string, cnt=%d\n",
1564 cnt);
1565 kfree(desc);
1566 desc = NULL;
1567 goto command_write_done;
1568 }
1569 /* Just stub a buffer big enough in case user messed up */
1570 if (buffer_len == 0)
1571 buffer_len = 1280;
1572
1573 buff = kzalloc(buffer_len, GFP_KERNEL);
1574 if (!buff) {
1575 kfree(desc);
1576 desc = NULL;
1577 goto command_write_done;
1578 }
1579 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1580 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1581 buffer_len, NULL);
1582 if (!ret) {
1583 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1584 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1585 dev_info(&pf->pdev->dev,
1586 "AQ command send failed Opcode %x AQ Error: %d\n",
1587 desc->opcode, pf->hw.aq.asq_last_status);
1588 } else {
1589 dev_info(&pf->pdev->dev,
1590 "AQ command send failed Opcode %x Status: %d\n",
1591 desc->opcode, ret);
1592 }
1593 dev_info(&pf->pdev->dev,
1594 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1595 desc->flags, desc->opcode, desc->datalen, desc->retval,
1596 desc->cookie_high, desc->cookie_low,
1597 desc->params.internal.param0,
1598 desc->params.internal.param1,
1599 desc->params.internal.param2,
1600 desc->params.internal.param3);
1601 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1602 DUMP_PREFIX_OFFSET, 16, 1,
1603 buff, buffer_len, true);
1604 kfree(buff);
1605 buff = NULL;
1606 kfree(desc);
1607 desc = NULL;
1608 } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1609 (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
1610 struct i40e_fdir_filter fd_data;
1611 u16 packet_len, i, j = 0;
1612 char *asc_packet;
1613 u8 *raw_packet;
1614 bool add = false;
1615 int ret;
1616
1617 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
1618 goto command_write_done;
1619
1620 if (strncmp(cmd_buf, "add", 3) == 0)
1621 add = true;
1622
1623 if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED))
1624 goto command_write_done;
1625
1626 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1627 GFP_KERNEL);
1628 if (!asc_packet)
1629 goto command_write_done;
1630
1631 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1632 GFP_KERNEL);
1633
1634 if (!raw_packet) {
1635 kfree(asc_packet);
1636 asc_packet = NULL;
1637 goto command_write_done;
1638 }
1639
1640 cnt = sscanf(&cmd_buf[13],
1641 "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s",
1642 &fd_data.q_index,
1643 &fd_data.flex_off, &fd_data.pctype,
1644 &fd_data.dest_vsi, &fd_data.dest_ctl,
1645 &fd_data.fd_status, &fd_data.cnt_index,
1646 &fd_data.fd_id, &packet_len, asc_packet);
1647 if (cnt != 10) {
1648 dev_info(&pf->pdev->dev,
1649 "program fd_filter: bad command string, cnt=%d\n",
1650 cnt);
1651 kfree(asc_packet);
1652 asc_packet = NULL;
1653 kfree(raw_packet);
1654 goto command_write_done;
1655 }
1656
1657 /* fix packet length if user entered 0 */
1658 if (packet_len == 0)
1659 packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE;
1660
1661 /* make sure to check the max as well */
1662 packet_len = min_t(u16,
1663 packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE);
1664
1665 for (i = 0; i < packet_len; i++) {
1666 sscanf(&asc_packet[j], "%2hhx ",
1667 &raw_packet[i]);
1668 j += 3;
1669 }
1670 dev_info(&pf->pdev->dev, "FD raw packet dump\n");
1671 print_hex_dump(KERN_INFO, "FD raw packet: ",
1672 DUMP_PREFIX_OFFSET, 16, 1,
1673 raw_packet, packet_len, true);
1674 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add);
1675 if (!ret) {
1676 dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1677 } else {
1678 dev_info(&pf->pdev->dev,
1679 "Filter command send failed %d\n", ret);
1680 }
1681 kfree(raw_packet);
1682 raw_packet = NULL;
1683 kfree(asc_packet);
1684 asc_packet = NULL;
1685 } else if (strncmp(cmd_buf, "fd-atr off", 10) == 0) {
1686 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false);
1687 } else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) {
1688 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true);
1689 } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1690 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1691 i40e_get_current_fd_count(pf));
1692 } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1693 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1694 int ret;
1695 ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1696 if (ret) {
1697 dev_info(&pf->pdev->dev,
1698 "Stop LLDP AQ command failed =0x%x\n",
1699 pf->hw.aq.asq_last_status);
1700 goto command_write_done;
1701 }
1702 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1703 pf->hw.mac.addr,
1704 I40E_ETH_P_LLDP, 0,
1705 pf->vsi[pf->lan_vsi]->seid,
1706 0, true, NULL, NULL);
1707 if (ret) {
1708 dev_info(&pf->pdev->dev,
1709 "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1710 __func__, pf->hw.aq.asq_last_status);
1711 goto command_write_done;
1712 }
1713 #ifdef CONFIG_I40E_DCB
1714 pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1715 DCB_CAP_DCBX_VER_IEEE;
1716 #endif /* CONFIG_I40E_DCB */
1717 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1718 int ret;
1719 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1720 pf->hw.mac.addr,
1721 I40E_ETH_P_LLDP, 0,
1722 pf->vsi[pf->lan_vsi]->seid,
1723 0, false, NULL, NULL);
1724 if (ret) {
1725 dev_info(&pf->pdev->dev,
1726 "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1727 __func__, pf->hw.aq.asq_last_status);
1728 /* Continue and start FW LLDP anyways */
1729 }
1730
1731 ret = i40e_aq_start_lldp(&pf->hw, NULL);
1732 if (ret) {
1733 dev_info(&pf->pdev->dev,
1734 "Start LLDP AQ command failed =0x%x\n",
1735 pf->hw.aq.asq_last_status);
1736 goto command_write_done;
1737 }
1738 #ifdef CONFIG_I40E_DCB
1739 pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1740 DCB_CAP_DCBX_VER_IEEE;
1741 #endif /* CONFIG_I40E_DCB */
1742 } else if (strncmp(&cmd_buf[5],
1743 "get local", 9) == 0) {
1744 u16 llen, rlen;
1745 int ret;
1746 u8 *buff;
1747 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1748 if (!buff)
1749 goto command_write_done;
1750
1751 ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1752 I40E_AQ_LLDP_MIB_LOCAL,
1753 buff, I40E_LLDPDU_SIZE,
1754 &llen, &rlen, NULL);
1755 if (ret) {
1756 dev_info(&pf->pdev->dev,
1757 "Get LLDP MIB (local) AQ command failed =0x%x\n",
1758 pf->hw.aq.asq_last_status);
1759 kfree(buff);
1760 buff = NULL;
1761 goto command_write_done;
1762 }
1763 dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1764 print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1765 DUMP_PREFIX_OFFSET, 16, 1,
1766 buff, I40E_LLDPDU_SIZE, true);
1767 kfree(buff);
1768 buff = NULL;
1769 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1770 u16 llen, rlen;
1771 int ret;
1772 u8 *buff;
1773 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1774 if (!buff)
1775 goto command_write_done;
1776
1777 ret = i40e_aq_get_lldp_mib(&pf->hw,
1778 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1779 I40E_AQ_LLDP_MIB_REMOTE,
1780 buff, I40E_LLDPDU_SIZE,
1781 &llen, &rlen, NULL);
1782 if (ret) {
1783 dev_info(&pf->pdev->dev,
1784 "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1785 pf->hw.aq.asq_last_status);
1786 kfree(buff);
1787 buff = NULL;
1788 goto command_write_done;
1789 }
1790 dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1791 print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1792 DUMP_PREFIX_OFFSET, 16, 1,
1793 buff, I40E_LLDPDU_SIZE, true);
1794 kfree(buff);
1795 buff = NULL;
1796 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1797 int ret;
1798 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1799 true, NULL);
1800 if (ret) {
1801 dev_info(&pf->pdev->dev,
1802 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1803 pf->hw.aq.asq_last_status);
1804 goto command_write_done;
1805 }
1806 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1807 int ret;
1808 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1809 false, NULL);
1810 if (ret) {
1811 dev_info(&pf->pdev->dev,
1812 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1813 pf->hw.aq.asq_last_status);
1814 goto command_write_done;
1815 }
1816 }
1817 } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1818 u16 buffer_len, bytes;
1819 u16 module;
1820 u32 offset;
1821 u16 *buff;
1822 int ret;
1823
1824 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1825 &module, &offset, &buffer_len);
1826 if (cnt == 0) {
1827 module = 0;
1828 offset = 0;
1829 buffer_len = 0;
1830 } else if (cnt == 1) {
1831 offset = 0;
1832 buffer_len = 0;
1833 } else if (cnt == 2) {
1834 buffer_len = 0;
1835 } else if (cnt > 3) {
1836 dev_info(&pf->pdev->dev,
1837 "nvm read: bad command string, cnt=%d\n", cnt);
1838 goto command_write_done;
1839 }
1840
1841 /* set the max length */
1842 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1843
1844 bytes = 2 * buffer_len;
1845
1846 /* read at least 1k bytes, no more than 4kB */
1847 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1848 buff = kzalloc(bytes, GFP_KERNEL);
1849 if (!buff)
1850 goto command_write_done;
1851
1852 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1853 if (ret) {
1854 dev_info(&pf->pdev->dev,
1855 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1856 ret, pf->hw.aq.asq_last_status);
1857 kfree(buff);
1858 goto command_write_done;
1859 }
1860
1861 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1862 bytes, (u8 *)buff, true, NULL);
1863 i40e_release_nvm(&pf->hw);
1864 if (ret) {
1865 dev_info(&pf->pdev->dev,
1866 "Read NVM AQ failed err=%d status=0x%x\n",
1867 ret, pf->hw.aq.asq_last_status);
1868 } else {
1869 dev_info(&pf->pdev->dev,
1870 "Read NVM module=0x%x offset=0x%x words=%d\n",
1871 module, offset, buffer_len);
1872 if (bytes)
1873 print_hex_dump(KERN_INFO, "NVM Dump: ",
1874 DUMP_PREFIX_OFFSET, 16, 2,
1875 buff, bytes, true);
1876 }
1877 kfree(buff);
1878 buff = NULL;
1879 } else {
1880 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1881 dev_info(&pf->pdev->dev, "available commands\n");
1882 dev_info(&pf->pdev->dev, " add vsi [relay_seid]\n");
1883 dev_info(&pf->pdev->dev, " del vsi [vsi_seid]\n");
1884 dev_info(&pf->pdev->dev, " add relay <uplink_seid> <vsi_seid>\n");
1885 dev_info(&pf->pdev->dev, " del relay <relay_seid>\n");
1886 dev_info(&pf->pdev->dev, " add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1887 dev_info(&pf->pdev->dev, " del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1888 dev_info(&pf->pdev->dev, " add pvid <vsi_seid> <vid>\n");
1889 dev_info(&pf->pdev->dev, " del pvid <vsi_seid>\n");
1890 dev_info(&pf->pdev->dev, " dump switch\n");
1891 dev_info(&pf->pdev->dev, " dump vsi [seid]\n");
1892 dev_info(&pf->pdev->dev, " dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1893 dev_info(&pf->pdev->dev, " dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1894 dev_info(&pf->pdev->dev, " dump desc aq\n");
1895 dev_info(&pf->pdev->dev, " dump reset stats\n");
1896 dev_info(&pf->pdev->dev, " msg_enable [level]\n");
1897 dev_info(&pf->pdev->dev, " read <reg>\n");
1898 dev_info(&pf->pdev->dev, " write <reg> <value>\n");
1899 dev_info(&pf->pdev->dev, " clear_stats vsi [seid]\n");
1900 dev_info(&pf->pdev->dev, " clear_stats pf\n");
1901 dev_info(&pf->pdev->dev, " pfr\n");
1902 dev_info(&pf->pdev->dev, " corer\n");
1903 dev_info(&pf->pdev->dev, " globr\n");
1904 dev_info(&pf->pdev->dev, " send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1905 dev_info(&pf->pdev->dev, " send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1906 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");
1907 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");
1908 dev_info(&pf->pdev->dev, " fd-atr off\n");
1909 dev_info(&pf->pdev->dev, " fd-atr on\n");
1910 dev_info(&pf->pdev->dev, " fd current cnt");
1911 dev_info(&pf->pdev->dev, " lldp start\n");
1912 dev_info(&pf->pdev->dev, " lldp stop\n");
1913 dev_info(&pf->pdev->dev, " lldp get local\n");
1914 dev_info(&pf->pdev->dev, " lldp get remote\n");
1915 dev_info(&pf->pdev->dev, " lldp event on\n");
1916 dev_info(&pf->pdev->dev, " lldp event off\n");
1917 dev_info(&pf->pdev->dev, " nvm read [module] [word_offset] [word_count]\n");
1918 }
1919
1920 command_write_done:
1921 kfree(cmd_buf);
1922 cmd_buf = NULL;
1923 return count;
1924 }
1925
1926 static const struct file_operations i40e_dbg_command_fops = {
1927 .owner = THIS_MODULE,
1928 .open = simple_open,
1929 .read = i40e_dbg_command_read,
1930 .write = i40e_dbg_command_write,
1931 };
1932
1933 /**************************************************************
1934 * netdev_ops
1935 * The netdev_ops entry in debugfs is for giving the driver commands
1936 * to be executed from the netdev operations.
1937 **************************************************************/
1938 static char i40e_dbg_netdev_ops_buf[256] = "hello world";
1939
1940 /**
1941 * i40e_dbg_netdev_ops - read for netdev_ops datum
1942 * @filp: the opened file
1943 * @buffer: where to write the data for the user to read
1944 * @count: the size of the user's buffer
1945 * @ppos: file position offset
1946 **/
1947 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1948 size_t count, loff_t *ppos)
1949 {
1950 struct i40e_pf *pf = filp->private_data;
1951 int bytes_not_copied;
1952 int buf_size = 256;
1953 char *buf;
1954 int len;
1955
1956 /* don't allow partal reads */
1957 if (*ppos != 0)
1958 return 0;
1959 if (count < buf_size)
1960 return -ENOSPC;
1961
1962 buf = kzalloc(buf_size, GFP_KERNEL);
1963 if (!buf)
1964 return -ENOSPC;
1965
1966 len = snprintf(buf, buf_size, "%s: %s\n",
1967 pf->vsi[pf->lan_vsi]->netdev->name,
1968 i40e_dbg_netdev_ops_buf);
1969
1970 bytes_not_copied = copy_to_user(buffer, buf, len);
1971 kfree(buf);
1972
1973 if (bytes_not_copied < 0)
1974 return bytes_not_copied;
1975
1976 *ppos = len;
1977 return len;
1978 }
1979
1980 /**
1981 * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1982 * @filp: the opened file
1983 * @buffer: where to find the user's data
1984 * @count: the length of the user's data
1985 * @ppos: file position offset
1986 **/
1987 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1988 const char __user *buffer,
1989 size_t count, loff_t *ppos)
1990 {
1991 struct i40e_pf *pf = filp->private_data;
1992 int bytes_not_copied;
1993 struct i40e_vsi *vsi;
1994 char *buf_tmp;
1995 int vsi_seid;
1996 int i, cnt;
1997
1998 /* don't allow partial writes */
1999 if (*ppos != 0)
2000 return 0;
2001 if (count >= sizeof(i40e_dbg_netdev_ops_buf))
2002 return -ENOSPC;
2003
2004 memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
2005 bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
2006 buffer, count);
2007 if (bytes_not_copied < 0)
2008 return bytes_not_copied;
2009 else if (bytes_not_copied > 0)
2010 count -= bytes_not_copied;
2011 i40e_dbg_netdev_ops_buf[count] = '\0';
2012
2013 buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
2014 if (buf_tmp) {
2015 *buf_tmp = '\0';
2016 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
2017 }
2018
2019 if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
2020 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2021 if (cnt != 1) {
2022 dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
2023 goto netdev_ops_write_done;
2024 }
2025 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2026 if (!vsi) {
2027 dev_info(&pf->pdev->dev,
2028 "tx_timeout: VSI %d not found\n", vsi_seid);
2029 } else if (!vsi->netdev) {
2030 dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n",
2031 vsi_seid);
2032 } else if (test_bit(__I40E_DOWN, &vsi->state)) {
2033 dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n",
2034 vsi_seid);
2035 } else if (rtnl_trylock()) {
2036 vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
2037 rtnl_unlock();
2038 dev_info(&pf->pdev->dev, "tx_timeout called\n");
2039 } else {
2040 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2041 }
2042 } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
2043 int mtu;
2044 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
2045 &vsi_seid, &mtu);
2046 if (cnt != 2) {
2047 dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
2048 goto netdev_ops_write_done;
2049 }
2050 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2051 if (!vsi) {
2052 dev_info(&pf->pdev->dev,
2053 "change_mtu: VSI %d not found\n", vsi_seid);
2054 } else if (!vsi->netdev) {
2055 dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
2056 vsi_seid);
2057 } else if (rtnl_trylock()) {
2058 vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
2059 mtu);
2060 rtnl_unlock();
2061 dev_info(&pf->pdev->dev, "change_mtu called\n");
2062 } else {
2063 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2064 }
2065
2066 } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
2067 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2068 if (cnt != 1) {
2069 dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
2070 goto netdev_ops_write_done;
2071 }
2072 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2073 if (!vsi) {
2074 dev_info(&pf->pdev->dev,
2075 "set_rx_mode: VSI %d not found\n", vsi_seid);
2076 } else if (!vsi->netdev) {
2077 dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
2078 vsi_seid);
2079 } else if (rtnl_trylock()) {
2080 vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
2081 rtnl_unlock();
2082 dev_info(&pf->pdev->dev, "set_rx_mode called\n");
2083 } else {
2084 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2085 }
2086
2087 } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
2088 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
2089 if (cnt != 1) {
2090 dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
2091 goto netdev_ops_write_done;
2092 }
2093 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2094 if (!vsi) {
2095 dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
2096 vsi_seid);
2097 } else if (!vsi->netdev) {
2098 dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
2099 vsi_seid);
2100 } else {
2101 for (i = 0; i < vsi->num_q_vectors; i++)
2102 napi_schedule(&vsi->q_vectors[i]->napi);
2103 dev_info(&pf->pdev->dev, "napi called\n");
2104 }
2105 } else {
2106 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2107 i40e_dbg_netdev_ops_buf);
2108 dev_info(&pf->pdev->dev, "available commands\n");
2109 dev_info(&pf->pdev->dev, " tx_timeout <vsi_seid>\n");
2110 dev_info(&pf->pdev->dev, " change_mtu <vsi_seid> <mtu>\n");
2111 dev_info(&pf->pdev->dev, " set_rx_mode <vsi_seid>\n");
2112 dev_info(&pf->pdev->dev, " napi <vsi_seid>\n");
2113 }
2114 netdev_ops_write_done:
2115 return count;
2116 }
2117
2118 static const struct file_operations i40e_dbg_netdev_ops_fops = {
2119 .owner = THIS_MODULE,
2120 .open = simple_open,
2121 .read = i40e_dbg_netdev_ops_read,
2122 .write = i40e_dbg_netdev_ops_write,
2123 };
2124
2125 /**
2126 * i40e_dbg_pf_init - setup the debugfs directory for the pf
2127 * @pf: the pf that is starting up
2128 **/
2129 void i40e_dbg_pf_init(struct i40e_pf *pf)
2130 {
2131 struct dentry *pfile;
2132 const char *name = pci_name(pf->pdev);
2133 const struct device *dev = &pf->pdev->dev;
2134
2135 pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
2136 if (!pf->i40e_dbg_pf)
2137 return;
2138
2139 pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
2140 &i40e_dbg_command_fops);
2141 if (!pfile)
2142 goto create_failed;
2143
2144 pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2145 &i40e_dbg_dump_fops);
2146 if (!pfile)
2147 goto create_failed;
2148
2149 pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
2150 &i40e_dbg_netdev_ops_fops);
2151 if (!pfile)
2152 goto create_failed;
2153
2154 return;
2155
2156 create_failed:
2157 dev_info(dev, "debugfs dir/file for %s failed\n", name);
2158 debugfs_remove_recursive(pf->i40e_dbg_pf);
2159 return;
2160 }
2161
2162 /**
2163 * i40e_dbg_pf_exit - clear out the pf's debugfs entries
2164 * @pf: the pf that is stopping
2165 **/
2166 void i40e_dbg_pf_exit(struct i40e_pf *pf)
2167 {
2168 debugfs_remove_recursive(pf->i40e_dbg_pf);
2169 pf->i40e_dbg_pf = NULL;
2170
2171 kfree(i40e_dbg_dump_buf);
2172 i40e_dbg_dump_buf = NULL;
2173 }
2174
2175 /**
2176 * i40e_dbg_init - start up debugfs for the driver
2177 **/
2178 void i40e_dbg_init(void)
2179 {
2180 i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2181 if (!i40e_dbg_root)
2182 pr_info("init of debugfs failed\n");
2183 }
2184
2185 /**
2186 * i40e_dbg_exit - clean out the driver's debugfs entries
2187 **/
2188 void i40e_dbg_exit(void)
2189 {
2190 debugfs_remove_recursive(i40e_dbg_root);
2191 i40e_dbg_root = NULL;
2192 }
2193
2194 #endif /* CONFIG_DEBUG_FS */
Linux kernel - Deliverables
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