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Merge branch 'for-davem' into for-next
[deliverable/linux.git] / drivers / net / ethernet / intel / i40e / i40e_debugfs.c
CommitLineData
02e9c290
JB		 1/*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
dc641b73 4 * Copyright(c) 2013 - 2014 Intel Corporation.
02e9c290
JB		 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 *
dc641b73
GR		 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/>.
02e9c290
JB		 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
34static struct dentry *i40e_dbg_root;
35
36/**
37 * i40e_dbg_find_vsi - searches for the vsi with the given seid
b40c82e6 38 * @pf - the PF structure to search for the vsi
02e9c290
JB		 39 * @seid - seid of the vsi it is searching for
40 **/
41static 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
505682cd 48 for (i = 0; i < pf->num_alloc_vsi; i++)
02e9c290
JB		 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
b40c82e6 57 * @pf - the PF structure to search for the veb
02e9c290
JB		 58 * @seid - seid of the veb it is searching for
59 **/
60static 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 **************************************************************/
81static char *i40e_dbg_dump_buf;
82static ssize_t i40e_dbg_dump_data_len;
83static 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 **/
92static 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
b40c82e6 115 * @pf: the PF we're working with
02e9c290
JB		 116 * @buflen: the desired buffer length
117 *
118 * Return positive if success, 0 if failed
119 **/
120static 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 **/
148static 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;
02e9c290 153 bool seid_found = false;
02e9c290
JB		 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;
02e9c290
JB		 163
164 /* decode the SEID given to be dumped */
004173cb
JB		 165 ret = kstrtol_from_user(buffer, count, 0, &seid);
166
167 if (ret) {
168 dev_info(&pf->pdev->dev, "bad seid value\n");
02e9c290
JB		 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);
90bb776a 194 memcpy(p, pf->hw.aq.asq.desc_buf.va, len);
02e9c290
JB		 195 p += len;
196
197 len = (sizeof(struct i40e_aq_desc)
198 * pf->hw.aq.num_arq_entries);
90bb776a 199 memcpy(p, pf->hw.aq.arq.desc_buf.va, len);
02e9c290
JB		 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
59072ba1
SN		 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 }
02e9c290 242
59072ba1
SN		 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);
02e9c290
JB		 249 p += len;
250 }
59072ba1
SN		 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 }
02e9c290 258 len = sizeof(struct i40e_rx_buffer);
59072ba1
SN		 259 for (i = 0; i < vsi->num_queue_pairs; i++) {
260 memcpy(p, vsi->rx_rings[i]->rx_bi, len);
261 p += len;
262 }
02e9c290
JB		 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
300write_exit:
301 if (!seid_found)
302 dev_info(&pf->pdev->dev, "unknown seid %ld\n", seid);
303
304 return count;
305}
306
307static 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 **************************************************************/
d1da3ac0 321static char i40e_dbg_command_buf[256] = "";
02e9c290
JB		 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 **/
330static 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/**
e625f71b 364 * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
02e9c290
JB		 365 * @pf: the i40e_pf created in command write
366 * @seid: the seid the user put in
367 **/
368static 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);
2ddb80c9
SN		 393 if (vsi == pf->vsi[pf->lan_vsi])
394 dev_info(&pf->pdev->dev, "MAC address: %pM SAN MAC: %pM Port MAC: %pM\n",
395 pf->hw.mac.addr,
396 pf->hw.mac.san_addr,
397 pf->hw.mac.port_addr);
02e9c290
JB		 398 list_for_each_entry(f, &vsi->mac_filter_list, list) {
399 dev_info(&pf->pdev->dev,
400 " mac_filter_list: %pM vid=%d, is_netdev=%d is_vf=%d counter=%d\n",
401 f->macaddr, f->vlan, f->is_netdev, f->is_vf,
402 f->counter);
403 }
404 nstat = i40e_get_vsi_stats_struct(vsi);
405 dev_info(&pf->pdev->dev,
406 " net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
407 (long unsigned int)nstat->rx_packets,
408 (long unsigned int)nstat->rx_bytes,
409 (long unsigned int)nstat->rx_errors,
410 (long unsigned int)nstat->rx_dropped);
411 dev_info(&pf->pdev->dev,
412 " net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
413 (long unsigned int)nstat->tx_packets,
414 (long unsigned int)nstat->tx_bytes,
415 (long unsigned int)nstat->tx_errors,
416 (long unsigned int)nstat->tx_dropped);
417 dev_info(&pf->pdev->dev,
418 " net_stats: multicast = %lu, collisions = %lu\n",
419 (long unsigned int)nstat->multicast,
420 (long unsigned int)nstat->collisions);
421 dev_info(&pf->pdev->dev,
422 " net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
423 (long unsigned int)nstat->rx_length_errors,
424 (long unsigned int)nstat->rx_over_errors,
425 (long unsigned int)nstat->rx_crc_errors);
426 dev_info(&pf->pdev->dev,
427 " net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
428 (long unsigned int)nstat->rx_frame_errors,
429 (long unsigned int)nstat->rx_fifo_errors,
430 (long unsigned int)nstat->rx_missed_errors);
431 dev_info(&pf->pdev->dev,
432 " net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
433 (long unsigned int)nstat->tx_aborted_errors,
434 (long unsigned int)nstat->tx_carrier_errors,
435 (long unsigned int)nstat->tx_fifo_errors);
436 dev_info(&pf->pdev->dev,
437 " net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
438 (long unsigned int)nstat->tx_heartbeat_errors,
439 (long unsigned int)nstat->tx_window_errors);
440 dev_info(&pf->pdev->dev,
441 " net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
442 (long unsigned int)nstat->rx_compressed,
443 (long unsigned int)nstat->tx_compressed);
444 dev_info(&pf->pdev->dev,
445 " net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
446 (long unsigned int)vsi->net_stats_offsets.rx_packets,
447 (long unsigned int)vsi->net_stats_offsets.rx_bytes,
448 (long unsigned int)vsi->net_stats_offsets.rx_errors,
449 (long unsigned int)vsi->net_stats_offsets.rx_dropped);
450 dev_info(&pf->pdev->dev,
451 " net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
452 (long unsigned int)vsi->net_stats_offsets.tx_packets,
453 (long unsigned int)vsi->net_stats_offsets.tx_bytes,
454 (long unsigned int)vsi->net_stats_offsets.tx_errors,
455 (long unsigned int)vsi->net_stats_offsets.tx_dropped);
456 dev_info(&pf->pdev->dev,
457 " net_stats_offsets: multicast = %lu, collisions = %lu\n",
458 (long unsigned int)vsi->net_stats_offsets.multicast,
459 (long unsigned int)vsi->net_stats_offsets.collisions);
460 dev_info(&pf->pdev->dev,
461 " net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
462 (long unsigned int)vsi->net_stats_offsets.rx_length_errors,
463 (long unsigned int)vsi->net_stats_offsets.rx_over_errors,
464 (long unsigned int)vsi->net_stats_offsets.rx_crc_errors);
465 dev_info(&pf->pdev->dev,
466 " net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
467 (long unsigned int)vsi->net_stats_offsets.rx_frame_errors,
468 (long unsigned int)vsi->net_stats_offsets.rx_fifo_errors,
469 (long unsigned int)vsi->net_stats_offsets.rx_missed_errors);
470 dev_info(&pf->pdev->dev,
471 " net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
472 (long unsigned int)vsi->net_stats_offsets.tx_aborted_errors,
473 (long unsigned int)vsi->net_stats_offsets.tx_carrier_errors,
474 (long unsigned int)vsi->net_stats_offsets.tx_fifo_errors);
475 dev_info(&pf->pdev->dev,
476 " net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
477 (long unsigned int)vsi->net_stats_offsets.tx_heartbeat_errors,
478 (long unsigned int)vsi->net_stats_offsets.tx_window_errors);
479 dev_info(&pf->pdev->dev,
480 " net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
481 (long unsigned int)vsi->net_stats_offsets.rx_compressed,
482 (long unsigned int)vsi->net_stats_offsets.tx_compressed);
483 dev_info(&pf->pdev->dev,
484 " tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
485 vsi->tx_restart, vsi->tx_busy,
486 vsi->rx_buf_failed, vsi->rx_page_failed);
9f65e15b
AD		 487 rcu_read_lock();
488 for (i = 0; i < vsi->num_queue_pairs; i++) {
489 struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]);
490 if (!rx_ring)
491 continue;
492
493 dev_info(&pf->pdev->dev,
494 " rx_rings[%i]: desc = %p\n",
495 i, rx_ring->desc);
496 dev_info(&pf->pdev->dev,
497 " rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n",
498 i, rx_ring->dev,
499 rx_ring->netdev,
500 rx_ring->rx_bi);
501 dev_info(&pf->pdev->dev,
502 " rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
503 i, rx_ring->state,
504 rx_ring->queue_index,
505 rx_ring->reg_idx);
506 dev_info(&pf->pdev->dev,
507 " rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n",
508 i, rx_ring->rx_hdr_len,
509 rx_ring->rx_buf_len,
510 rx_ring->dtype);
511 dev_info(&pf->pdev->dev,
512 " rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
513 i, rx_ring->hsplit,
514 rx_ring->next_to_use,
515 rx_ring->next_to_clean,
516 rx_ring->ring_active);
517 dev_info(&pf->pdev->dev,
518 " rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
519 i, rx_ring->stats.packets,
520 rx_ring->stats.bytes,
521 rx_ring->rx_stats.non_eop_descs);
522 dev_info(&pf->pdev->dev,
420136cc 523 " rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
9f65e15b 524 i,
420136cc
MW		 525 rx_ring->rx_stats.alloc_page_failed,
526 rx_ring->rx_stats.alloc_buff_failed);
9f65e15b
AD		 527 dev_info(&pf->pdev->dev,
528 " rx_rings[%i]: size = %i, dma = 0x%08lx\n",
529 i, rx_ring->size,
530 (long unsigned int)rx_ring->dma);
531 dev_info(&pf->pdev->dev,
532 " rx_rings[%i]: vsi = %p, q_vector = %p\n",
533 i, rx_ring->vsi,
534 rx_ring->q_vector);
02e9c290 535 }
9f65e15b
AD		 536 for (i = 0; i < vsi->num_queue_pairs; i++) {
537 struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
538 if (!tx_ring)
539 continue;
1b60f3c4 540
9f65e15b
AD		 541 dev_info(&pf->pdev->dev,
542 " tx_rings[%i]: desc = %p\n",
543 i, tx_ring->desc);
544 dev_info(&pf->pdev->dev,
545 " tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
546 i, tx_ring->dev,
547 tx_ring->netdev,
548 tx_ring->tx_bi);
549 dev_info(&pf->pdev->dev,
550 " tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
551 i, tx_ring->state,
552 tx_ring->queue_index,
553 tx_ring->reg_idx);
554 dev_info(&pf->pdev->dev,
555 " tx_rings[%i]: dtype = %d\n",
556 i, tx_ring->dtype);
557 dev_info(&pf->pdev->dev,
558 " tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
559 i, tx_ring->hsplit,
560 tx_ring->next_to_use,
561 tx_ring->next_to_clean,
562 tx_ring->ring_active);
563 dev_info(&pf->pdev->dev,
564 " tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
565 i, tx_ring->stats.packets,
566 tx_ring->stats.bytes,
567 tx_ring->tx_stats.restart_queue);
568 dev_info(&pf->pdev->dev,
569 " tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
570 i,
571 tx_ring->tx_stats.tx_busy,
572 tx_ring->tx_stats.tx_done_old);
573 dev_info(&pf->pdev->dev,
574 " tx_rings[%i]: size = %i, dma = 0x%08lx\n",
575 i, tx_ring->size,
576 (long unsigned int)tx_ring->dma);
577 dev_info(&pf->pdev->dev,
578 " tx_rings[%i]: vsi = %p, q_vector = %p\n",
579 i, tx_ring->vsi,
580 tx_ring->q_vector);
581 dev_info(&pf->pdev->dev,
582 " tx_rings[%i]: DCB tc = %d\n",
583 i, tx_ring->dcb_tc);
02e9c290 584 }
9f65e15b 585 rcu_read_unlock();
02e9c290
JB		 586 dev_info(&pf->pdev->dev,
587 " work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n",
588 vsi->work_limit, vsi->rx_itr_setting,
589 ITR_IS_DYNAMIC(vsi->rx_itr_setting) ? "dynamic" : "fixed",
590 vsi->tx_itr_setting,
591 ITR_IS_DYNAMIC(vsi->tx_itr_setting) ? "dynamic" : "fixed");
592 dev_info(&pf->pdev->dev,
593 " max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n",
594 vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype);
02e9c290
JB		 595 dev_info(&pf->pdev->dev,
596 " num_q_vectors = %i, base_vector = %i\n",
597 vsi->num_q_vectors, vsi->base_vector);
598 dev_info(&pf->pdev->dev,
599 " seid = %d, id = %d, uplink_seid = %d\n",
600 vsi->seid, vsi->id, vsi->uplink_seid);
601 dev_info(&pf->pdev->dev,
602 " base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
603 vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
604 dev_info(&pf->pdev->dev, " type = %i\n", vsi->type);
605 dev_info(&pf->pdev->dev,
606 " info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
607 vsi->info.valid_sections, vsi->info.switch_id);
608 dev_info(&pf->pdev->dev,
609 " info: sw_reserved[] = 0x%02x 0x%02x\n",
610 vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
611 dev_info(&pf->pdev->dev,
612 " info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
613 vsi->info.sec_flags, vsi->info.sec_reserved);
614 dev_info(&pf->pdev->dev,
615 " info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
616 vsi->info.pvid, vsi->info.fcoe_pvid,
617 vsi->info.port_vlan_flags);
618 dev_info(&pf->pdev->dev,
619 " info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
620 vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
621 vsi->info.pvlan_reserved[2]);
622 dev_info(&pf->pdev->dev,
623 " info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
624 vsi->info.ingress_table, vsi->info.egress_table);
625 dev_info(&pf->pdev->dev,
626 " info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
627 vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
628 vsi->info.cas_pv_reserved);
629 dev_info(&pf->pdev->dev,
630 " info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
631 vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
632 vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
633 vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
634 vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
635 dev_info(&pf->pdev->dev,
636 " info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
637 vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
638 vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
639 vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
640 vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
641 dev_info(&pf->pdev->dev,
642 " info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
643 vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
644 vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
645 vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
646 vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
647 dev_info(&pf->pdev->dev,
648 " info: queueing_opt_flags = 0x%02x queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
649 vsi->info.queueing_opt_flags,
650 vsi->info.queueing_opt_reserved[0],
651 vsi->info.queueing_opt_reserved[1],
652 vsi->info.queueing_opt_reserved[2]);
653 dev_info(&pf->pdev->dev,
654 " info: up_enable_bits = 0x%02x\n",
655 vsi->info.up_enable_bits);
656 dev_info(&pf->pdev->dev,
657 " info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
658 vsi->info.sched_reserved, vsi->info.outer_up_table);
659 dev_info(&pf->pdev->dev,
660 " info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
661 vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
662 vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
663 vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
664 vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
665 dev_info(&pf->pdev->dev,
666 " info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
667 vsi->info.qs_handle[0], vsi->info.qs_handle[1],
668 vsi->info.qs_handle[2], vsi->info.qs_handle[3],
669 vsi->info.qs_handle[4], vsi->info.qs_handle[5],
670 vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
671 dev_info(&pf->pdev->dev,
672 " info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
673 vsi->info.stat_counter_idx, vsi->info.sched_id);
674 dev_info(&pf->pdev->dev,
675 " 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",
676 vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
677 vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
678 vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
679 vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
680 vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
681 vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
682 if (vsi->back)
b40c82e6 683 dev_info(&pf->pdev->dev, " PF = %p\n", vsi->back);
02e9c290
JB		 684 dev_info(&pf->pdev->dev, " idx = %d\n", vsi->idx);
685 dev_info(&pf->pdev->dev,
686 " tc_config: numtc = %d, enabled_tc = 0x%x\n",
687 vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
688 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
689 dev_info(&pf->pdev->dev,
690 " tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
691 i, vsi->tc_config.tc_info[i].qoffset,
692 vsi->tc_config.tc_info[i].qcount,
693 vsi->tc_config.tc_info[i].netdev_tc);
694 }
695 dev_info(&pf->pdev->dev,
696 " bw: bw_limit = %d, bw_max_quanta = %d\n",
697 vsi->bw_limit, vsi->bw_max_quanta);
698 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
699 dev_info(&pf->pdev->dev,
700 " bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
701 i, vsi->bw_ets_share_credits[i],
702 vsi->bw_ets_limit_credits[i],
703 vsi->bw_ets_max_quanta[i]);
704 }
38e00438
VD		 705#ifdef I40E_FCOE
706 if (vsi->type == I40E_VSI_FCOE) {
707 dev_info(&pf->pdev->dev,
708 " fcoe_stats: rx_packets = %llu, rx_dwords = %llu, rx_dropped = %llu\n",
709 vsi->fcoe_stats.rx_fcoe_packets,
710 vsi->fcoe_stats.rx_fcoe_dwords,
711 vsi->fcoe_stats.rx_fcoe_dropped);
712 dev_info(&pf->pdev->dev,
713 " fcoe_stats: tx_packets = %llu, tx_dwords = %llu\n",
714 vsi->fcoe_stats.tx_fcoe_packets,
715 vsi->fcoe_stats.tx_fcoe_dwords);
716 dev_info(&pf->pdev->dev,
717 " fcoe_stats: bad_crc = %llu, last_error = %llu\n",
718 vsi->fcoe_stats.fcoe_bad_fccrc,
719 vsi->fcoe_stats.fcoe_last_error);
720 dev_info(&pf->pdev->dev, " fcoe_stats: ddp_count = %llu\n",
721 vsi->fcoe_stats.fcoe_ddp_count);
722 }
723#endif
02e9c290
JB		 724}
725
726/**
727 * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
728 * @pf: the i40e_pf created in command write
729 **/
730static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
731{
732 struct i40e_adminq_ring *ring;
733 struct i40e_hw *hw = &pf->hw;
e625f71b 734 char hdr[32];
02e9c290
JB		 735 int i;
736
e625f71b
SN		 737 snprintf(hdr, sizeof(hdr), "%s %s: ",
738 dev_driver_string(&pf->pdev->dev),
739 dev_name(&pf->pdev->dev));
740
02e9c290
JB		 741 /* first the send (command) ring, then the receive (event) ring */
742 dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
743 ring = &(hw->aq.asq);
744 for (i = 0; i < ring->count; i++) {
745 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
746 dev_info(&pf->pdev->dev,
747 " at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
748 i, d->flags, d->opcode, d->datalen, d->retval,
749 d->cookie_high, d->cookie_low);
e625f71b
SN		 750 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
751 16, 1, d->params.raw, 16, 0);
02e9c290
JB		 752 }
753
754 dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
755 ring = &(hw->aq.arq);
756 for (i = 0; i < ring->count; i++) {
757 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
758 dev_info(&pf->pdev->dev,
759 " ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
760 i, d->flags, d->opcode, d->datalen, d->retval,
761 d->cookie_high, d->cookie_low);
e625f71b
SN		 762 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
763 16, 1, d->params.raw, 16, 0);
02e9c290
JB		 764 }
765}
766
767/**
768 * i40e_dbg_dump_desc - handles dump desc write into command datum
769 * @cnt: number of arguments that the user supplied
770 * @vsi_seid: vsi id entered by user
771 * @ring_id: ring id entered by user
772 * @desc_n: descriptor number entered by user
773 * @pf: the i40e_pf created in command write
774 * @is_rx_ring: true if rx, false if tx
775 **/
776static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
777 struct i40e_pf *pf, bool is_rx_ring)
778{
68bf94aa
SN		 779 struct i40e_tx_desc *txd;
780 union i40e_rx_desc *rxd;
e6c97234 781 struct i40e_ring *ring;
02e9c290
JB		 782 struct i40e_vsi *vsi;
783 int i;
784
785 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
786 if (!vsi) {
7792fe4f 787 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
02e9c290
JB		 788 return;
789 }
790 if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
791 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
02e9c290
JB		 792 return;
793 }
68bf94aa 794 if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
29d0790e
SN		 795 dev_info(&pf->pdev->dev,
796 "descriptor rings have not been allocated for vsi %d\n",
797 vsi_seid);
798 return;
799 }
e6c97234
JP		 800
801 ring = kmemdup(is_rx_ring
802 ? vsi->rx_rings[ring_id] : vsi->tx_rings[ring_id],
803 sizeof(*ring), GFP_KERNEL);
804 if (!ring)
805 return;
806
02e9c290
JB		 807 if (cnt == 2) {
808 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
809 vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
e6c97234 810 for (i = 0; i < ring->count; i++) {
68bf94aa 811 if (!is_rx_ring) {
e6c97234 812 txd = I40E_TX_DESC(ring, i);
02e9c290 813 dev_info(&pf->pdev->dev,
68bf94aa
SN		 814 " d[%03i] = 0x%016llx 0x%016llx\n",
815 i, txd->buffer_addr,
816 txd->cmd_type_offset_bsz);
817 } else if (sizeof(union i40e_rx_desc) ==
818 sizeof(union i40e_16byte_rx_desc)) {
e6c97234 819 rxd = I40E_RX_DESC(ring, i);
68bf94aa
SN		 820 dev_info(&pf->pdev->dev,
821 " d[%03i] = 0x%016llx 0x%016llx\n",
822 i, rxd->read.pkt_addr,
823 rxd->read.hdr_addr);
824 } else {
e6c97234 825 rxd = I40E_RX_DESC(ring, i);
02e9c290
JB		 826 dev_info(&pf->pdev->dev,
827 " d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
68bf94aa
SN		 828 i, rxd->read.pkt_addr,
829 rxd->read.hdr_addr,
830 rxd->read.rsvd1, rxd->read.rsvd2);
831 }
02e9c290
JB		 832 }
833 } else if (cnt == 3) {
e6c97234 834 if (desc_n >= ring->count || desc_n < 0) {
02e9c290
JB		 835 dev_info(&pf->pdev->dev,
836 "descriptor %d not found\n", desc_n);
e3fe44c7 837 goto out;
02e9c290 838 }
68bf94aa 839 if (!is_rx_ring) {
e6c97234 840 txd = I40E_TX_DESC(ring, desc_n);
02e9c290 841 dev_info(&pf->pdev->dev,
68bf94aa
SN		 842 "vsi = %02i tx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
843 vsi_seid, ring_id, desc_n,
844 txd->buffer_addr, txd->cmd_type_offset_bsz);
845 } else if (sizeof(union i40e_rx_desc) ==
846 sizeof(union i40e_16byte_rx_desc)) {
e6c97234 847 rxd = I40E_RX_DESC(ring, desc_n);
68bf94aa
SN		 848 dev_info(&pf->pdev->dev,
849 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx\n",
850 vsi_seid, ring_id, desc_n,
851 rxd->read.pkt_addr, rxd->read.hdr_addr);
852 } else {
e6c97234 853 rxd = I40E_RX_DESC(ring, desc_n);
02e9c290
JB		 854 dev_info(&pf->pdev->dev,
855 "vsi = %02i rx ring = %02i d[%03i] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
68bf94aa
SN		 856 vsi_seid, ring_id, desc_n,
857 rxd->read.pkt_addr, rxd->read.hdr_addr,
858 rxd->read.rsvd1, rxd->read.rsvd2);
859 }
02e9c290 860 } else {
7792fe4f 861 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
02e9c290 862 }
e3fe44c7
JP		 863
864out:
e6c97234 865 kfree(ring);
02e9c290
JB		 866}
867
868/**
869 * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
870 * @pf: the i40e_pf created in command write
871 **/
872static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
873{
874 int i;
875
505682cd 876 for (i = 0; i < pf->num_alloc_vsi; i++)
02e9c290
JB		 877 if (pf->vsi[i])
878 dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
879 i, pf->vsi[i]->seid);
880}
881
882/**
883 * i40e_dbg_dump_stats - handles dump stats write into command datum
884 * @pf: the i40e_pf created in command write
885 * @estats: the eth stats structure to be dumped
886 **/
887static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
888 struct i40e_eth_stats *estats)
889{
890 dev_info(&pf->pdev->dev, " ethstats:\n");
891 dev_info(&pf->pdev->dev,
892 " rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
893 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
894 dev_info(&pf->pdev->dev,
03da6f6a
SN		 895 " rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
896 estats->rx_broadcast, estats->rx_discards);
02e9c290 897 dev_info(&pf->pdev->dev,
03da6f6a
SN		 898 " rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
899 estats->rx_unknown_protocol, estats->tx_bytes);
02e9c290
JB		 900 dev_info(&pf->pdev->dev,
901 " tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
902 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
903 dev_info(&pf->pdev->dev,
904 " tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
905 estats->tx_discards, estats->tx_errors);
906}
907
02e9c290
JB		 908/**
909 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
910 * @pf: the i40e_pf created in command write
911 * @seid: the seid the user put in
912 **/
913static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
914{
915 struct i40e_veb *veb;
916
917 if ((seid < I40E_BASE_VEB_SEID) ||
918 (seid >= (I40E_MAX_VEB + I40E_BASE_VEB_SEID))) {
919 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
920 return;
921 }
922
923 veb = i40e_dbg_find_veb(pf, seid);
924 if (!veb) {
e625f71b 925 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
02e9c290
JB		 926 return;
927 }
928 dev_info(&pf->pdev->dev,
51616018 929 "veb idx=%d,%d stats_ic=%d seid=%d uplink=%d mode=%s\n",
02e9c290 930 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
51616018
NP		 931 veb->uplink_seid,
932 veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
02e9c290
JB		 933 i40e_dbg_dump_eth_stats(pf, &veb->stats);
934}
935
936/**
937 * i40e_dbg_dump_veb_all - dumps all known veb's stats
938 * @pf: the i40e_pf created in command write
939 **/
940static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
941{
942 struct i40e_veb *veb;
943 int i;
944
945 for (i = 0; i < I40E_MAX_VEB; i++) {
946 veb = pf->veb[i];
947 if (veb)
948 i40e_dbg_dump_veb_seid(pf, veb->seid);
949 }
950}
951
cbf61325
ASJ		 952/**
953 * i40e_dbg_cmd_fd_ctrl - Enable/disable FD sideband/ATR
b40c82e6 954 * @pf: the PF that would be altered
cbf61325
ASJ		 955 * @flag: flag that needs enabling or disabling
956 * @enable: Enable/disable FD SD/ATR
957 **/
958static void i40e_dbg_cmd_fd_ctrl(struct i40e_pf *pf, u64 flag, bool enable)
959{
55a5e60b 960 if (enable) {
cbf61325 961 pf->flags |= flag;
55a5e60b 962 } else {
cbf61325 963 pf->flags &= ~flag;
55a5e60b
ASJ		 964 pf->auto_disable_flags |= flag;
965 }
b40c82e6 966 dev_info(&pf->pdev->dev, "requesting a PF reset\n");
cbf61325
ASJ		 967 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
968}
969
02e9c290
JB		 970#define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
971/**
972 * i40e_dbg_command_write - write into command datum
973 * @filp: the opened file
974 * @buffer: where to find the user's data
975 * @count: the length of the user's data
976 * @ppos: file position offset
977 **/
978static ssize_t i40e_dbg_command_write(struct file *filp,
979 const char __user *buffer,
980 size_t count, loff_t *ppos)
981{
982 struct i40e_pf *pf = filp->private_data;
004173cb 983 char *cmd_buf, *cmd_buf_tmp;
02e9c290
JB		 984 int bytes_not_copied;
985 struct i40e_vsi *vsi;
02e9c290
JB		 986 int vsi_seid;
987 int veb_seid;
988 int cnt;
989
990 /* don't allow partial writes */
991 if (*ppos != 0)
992 return 0;
993
994 cmd_buf = kzalloc(count + 1, GFP_KERNEL);
995 if (!cmd_buf)
996 return count;
997 bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
dda094a3
AK		 998 if (bytes_not_copied < 0) {
999 kfree(cmd_buf);
02e9c290 1000 return bytes_not_copied;
dda094a3 1001 }
02e9c290
JB		 1002 if (bytes_not_copied > 0)
1003 count -= bytes_not_copied;
1004 cmd_buf[count] = '\0';
1005
004173cb
JB		 1006 cmd_buf_tmp = strchr(cmd_buf, '\n');
1007 if (cmd_buf_tmp) {
1008 *cmd_buf_tmp = '\0';
1009 count = cmd_buf_tmp - cmd_buf + 1;
1010 }
1011
02e9c290
JB		 1012 if (strncmp(cmd_buf, "add vsi", 7) == 0) {
1013 vsi_seid = -1;
1014 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
1015 if (cnt == 0) {
1016 /* default to PF VSI */
1017 vsi_seid = pf->vsi[pf->lan_vsi]->seid;
1018 } else if (vsi_seid < 0) {
1019 dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
1020 vsi_seid);
1021 goto command_write_done;
1022 }
1023
1024 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
1025 if (vsi)
1026 dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
1027 vsi->seid, vsi->uplink_seid);
1028 else
1029 dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
1030
1031 } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
1032 sscanf(&cmd_buf[7], "%i", &vsi_seid);
1033 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1034 if (!vsi) {
1035 dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
1036 vsi_seid);
1037 goto command_write_done;
1038 }
1039
1040 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
1041 i40e_vsi_release(vsi);
1042
1043 } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
1044 struct i40e_veb *veb;
1045 int uplink_seid, i;
1046
1047 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
1048 if (cnt != 2) {
1049 dev_info(&pf->pdev->dev,
1050 "add relay: bad command string, cnt=%d\n",
1051 cnt);
1052 goto command_write_done;
1053 } else if (uplink_seid < 0) {
1054 dev_info(&pf->pdev->dev,
1055 "add relay %d: bad uplink seid\n",
1056 uplink_seid);
1057 goto command_write_done;
1058 }
1059
1060 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1061 if (!vsi) {
1062 dev_info(&pf->pdev->dev,
c07019e4 1063 "add relay: VSI %d not found\n", vsi_seid);
02e9c290
JB		 1064 goto command_write_done;
1065 }
1066
1067 for (i = 0; i < I40E_MAX_VEB; i++)
1068 if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
1069 break;
1070 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
1071 uplink_seid != pf->mac_seid) {
1072 dev_info(&pf->pdev->dev,
1073 "add relay: relay uplink %d not found\n",
1074 uplink_seid);
1075 goto command_write_done;
1076 }
1077
1078 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
1079 vsi->tc_config.enabled_tc);
1080 if (veb)
1081 dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
1082 else
1083 dev_info(&pf->pdev->dev, "add relay failed\n");
1084
1085 } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
1086 int i;
1087 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
1088 if (cnt != 1) {
1089 dev_info(&pf->pdev->dev,
1090 "del relay: bad command string, cnt=%d\n",
1091 cnt);
1092 goto command_write_done;
1093 } else if (veb_seid < 0) {
1094 dev_info(&pf->pdev->dev,
1095 "del relay %d: bad relay seid\n", veb_seid);
1096 goto command_write_done;
1097 }
1098
1099 /* find the veb */
1100 for (i = 0; i < I40E_MAX_VEB; i++)
1101 if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
1102 break;
1103 if (i >= I40E_MAX_VEB) {
1104 dev_info(&pf->pdev->dev,
1105 "del relay: relay %d not found\n", veb_seid);
1106 goto command_write_done;
1107 }
1108
1109 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
1110 i40e_veb_release(pf->veb[i]);
1111
1112 } else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
02e9c290 1113 struct i40e_mac_filter *f;
738a9e9b
SN		 1114 int vlan = 0;
1115 u8 ma[6];
02e9c290
JB		 1116 int ret;
1117
1118 cnt = sscanf(&cmd_buf[11],
1119 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1120 &vsi_seid,
1121 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1122 &vlan);
1123 if (cnt == 7) {
1124 vlan = 0;
1125 } else if (cnt != 8) {
1126 dev_info(&pf->pdev->dev,
1127 "add macaddr: bad command string, cnt=%d\n",
1128 cnt);
1129 goto command_write_done;
1130 }
1131
1132 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1133 if (!vsi) {
1134 dev_info(&pf->pdev->dev,
1135 "add macaddr: VSI %d not found\n", vsi_seid);
1136 goto command_write_done;
1137 }
1138
1139 f = i40e_add_filter(vsi, ma, vlan, false, false);
1140 ret = i40e_sync_vsi_filters(vsi);
1141 if (f && !ret)
1142 dev_info(&pf->pdev->dev,
1143 "add macaddr: %pM vlan=%d added to VSI %d\n",
1144 ma, vlan, vsi_seid);
1145 else
1146 dev_info(&pf->pdev->dev,
1147 "add macaddr: %pM vlan=%d to VSI %d failed, f=%p ret=%d\n",
1148 ma, vlan, vsi_seid, f, ret);
1149
1150 } else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
02e9c290 1151 int vlan = 0;
738a9e9b 1152 u8 ma[6];
02e9c290
JB		 1153 int ret;
1154
1155 cnt = sscanf(&cmd_buf[11],
1156 "%i %hhx:%hhx:%hhx:%hhx:%hhx:%hhx %i",
1157 &vsi_seid,
1158 &ma[0], &ma[1], &ma[2], &ma[3], &ma[4], &ma[5],
1159 &vlan);
1160 if (cnt == 7) {
1161 vlan = 0;
1162 } else if (cnt != 8) {
1163 dev_info(&pf->pdev->dev,
1164 "del macaddr: bad command string, cnt=%d\n",
1165 cnt);
1166 goto command_write_done;
1167 }
1168
1169 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1170 if (!vsi) {
1171 dev_info(&pf->pdev->dev,
1172 "del macaddr: VSI %d not found\n", vsi_seid);
1173 goto command_write_done;
1174 }
1175
1176 i40e_del_filter(vsi, ma, vlan, false, false);
1177 ret = i40e_sync_vsi_filters(vsi);
1178 if (!ret)
1179 dev_info(&pf->pdev->dev,
1180 "del macaddr: %pM vlan=%d removed from VSI %d\n",
1181 ma, vlan, vsi_seid);
1182 else
1183 dev_info(&pf->pdev->dev,
1184 "del macaddr: %pM vlan=%d from VSI %d failed, ret=%d\n",
1185 ma, vlan, vsi_seid, ret);
1186
1187 } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
02e9c290 1188 i40e_status ret;
738a9e9b 1189 u16 vid;
efe1ac25 1190 unsigned int v;
02e9c290
JB		 1191
1192 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
1193 if (cnt != 2) {
1194 dev_info(&pf->pdev->dev,
1195 "add pvid: bad command string, cnt=%d\n", cnt);
1196 goto command_write_done;
1197 }
1198
1199 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1200 if (!vsi) {
1201 dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
1202 vsi_seid);
1203 goto command_write_done;
1204 }
1205
efe1ac25 1206 vid = v;
02e9c290
JB		 1207 ret = i40e_vsi_add_pvid(vsi, vid);
1208 if (!ret)
1209 dev_info(&pf->pdev->dev,
1210 "add pvid: %d added to VSI %d\n",
1211 vid, vsi_seid);
1212 else
1213 dev_info(&pf->pdev->dev,
1214 "add pvid: %d to VSI %d failed, ret=%d\n",
1215 vid, vsi_seid, ret);
1216
1217 } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
1218
1219 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1220 if (cnt != 1) {
1221 dev_info(&pf->pdev->dev,
1222 "del pvid: bad command string, cnt=%d\n",
1223 cnt);
1224 goto command_write_done;
1225 }
1226
1227 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1228 if (!vsi) {
1229 dev_info(&pf->pdev->dev,
1230 "del pvid: VSI %d not found\n", vsi_seid);
1231 goto command_write_done;
1232 }
1233
1234 i40e_vsi_remove_pvid(vsi);
1235 dev_info(&pf->pdev->dev,
1236 "del pvid: removed from VSI %d\n", vsi_seid);
1237
1238 } else if (strncmp(cmd_buf, "dump", 4) == 0) {
1239 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
1240 i40e_fetch_switch_configuration(pf, true);
1241 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
1242 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1243 if (cnt > 0)
1244 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
1245 else
1246 i40e_dbg_dump_vsi_no_seid(pf);
1247 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
1248 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
1249 if (cnt > 0)
1250 i40e_dbg_dump_veb_seid(pf, vsi_seid);
1251 else
1252 i40e_dbg_dump_veb_all(pf);
1253 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
1254 int ring_id, desc_n;
1255 if (strncmp(&cmd_buf[10], "rx", 2) == 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, true);
1260 } else if (strncmp(&cmd_buf[10], "tx", 2)
1261 == 0) {
1262 cnt = sscanf(&cmd_buf[12], "%i %i %i",
1263 &vsi_seid, &ring_id, &desc_n);
1264 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1265 desc_n, pf, false);
1266 } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1267 i40e_dbg_dump_aq_desc(pf);
1268 } else {
1269 dev_info(&pf->pdev->dev,
1270 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1271 dev_info(&pf->pdev->dev,
1272 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1273 dev_info(&pf->pdev->dev, "dump desc aq\n");
1274 }
02e9c290
JB		 1275 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1276 dev_info(&pf->pdev->dev,
1277 "core reset count: %d\n", pf->corer_count);
1278 dev_info(&pf->pdev->dev,
1279 "global reset count: %d\n", pf->globr_count);
1280 dev_info(&pf->pdev->dev,
1281 "emp reset count: %d\n", pf->empr_count);
1282 dev_info(&pf->pdev->dev,
1283 "pf reset count: %d\n", pf->pfr_count);
810b3ae4
ASJ		 1284 dev_info(&pf->pdev->dev,
1285 "pf tx sluggish count: %d\n",
1286 pf->tx_sluggish_count);
02e9c290
JB		 1287 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1288 struct i40e_aqc_query_port_ets_config_resp *bw_data;
1289 struct i40e_dcbx_config *cfg =
1290 &pf->hw.local_dcbx_config;
1291 struct i40e_dcbx_config *r_cfg =
1292 &pf->hw.remote_dcbx_config;
1293 int i, ret;
1294
1295 bw_data = kzalloc(sizeof(
1296 struct i40e_aqc_query_port_ets_config_resp),
1297 GFP_KERNEL);
1298 if (!bw_data) {
1299 ret = -ENOMEM;
1300 goto command_write_done;
1301 }
1302
1303 ret = i40e_aq_query_port_ets_config(&pf->hw,
1304 pf->mac_seid,
1305 bw_data, NULL);
1306 if (ret) {
1307 dev_info(&pf->pdev->dev,
1308 "Query Port ETS Config AQ command failed =0x%x\n",
1309 pf->hw.aq.asq_last_status);
1310 kfree(bw_data);
1311 bw_data = NULL;
1312 goto command_write_done;
1313 }
1314 dev_info(&pf->pdev->dev,
1315 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1316 bw_data->tc_valid_bits,
1317 bw_data->tc_strict_priority_bits,
1318 le16_to_cpu(bw_data->tc_bw_max[0]),
1319 le16_to_cpu(bw_data->tc_bw_max[1]));
1320 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1321 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1322 bw_data->tc_bw_share_credits[i],
1323 le16_to_cpu(bw_data->tc_bw_limits[i]));
1324 }
1325
1326 kfree(bw_data);
1327 bw_data = NULL;
1328
9fa61dd2
NP		 1329 dev_info(&pf->pdev->dev,
1330 "port dcbx_mode=%d\n", cfg->dcbx_mode);
02e9c290
JB		 1331 dev_info(&pf->pdev->dev,
1332 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1333 cfg->etscfg.willing, cfg->etscfg.cbs,
1334 cfg->etscfg.maxtcs);
1335 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1336 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1337 i, cfg->etscfg.prioritytable[i],
1338 cfg->etscfg.tcbwtable[i],
1339 cfg->etscfg.tsatable[i]);
1340 }
1341 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1342 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1343 i, cfg->etsrec.prioritytable[i],
1344 cfg->etsrec.tcbwtable[i],
1345 cfg->etsrec.tsatable[i]);
1346 }
1347 dev_info(&pf->pdev->dev,
1348 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1349 cfg->pfc.willing, cfg->pfc.mbc,
1350 cfg->pfc.pfccap, cfg->pfc.pfcenable);
1351 dev_info(&pf->pdev->dev,
1352 "port app_table: num_apps=%d\n", cfg->numapps);
1353 for (i = 0; i < cfg->numapps; i++) {
1354 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1355 i, cfg->app[i].priority,
1356 cfg->app[i].selector,
1357 cfg->app[i].protocolid);
1358 }
1359 /* Peer TLV DCBX data */
1360 dev_info(&pf->pdev->dev,
1361 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1362 r_cfg->etscfg.willing,
1363 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1364 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1365 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1366 i, r_cfg->etscfg.prioritytable[i],
1367 r_cfg->etscfg.tcbwtable[i],
1368 r_cfg->etscfg.tsatable[i]);
1369 }
1370 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1371 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1372 i, r_cfg->etsrec.prioritytable[i],
1373 r_cfg->etsrec.tcbwtable[i],
1374 r_cfg->etsrec.tsatable[i]);
1375 }
1376 dev_info(&pf->pdev->dev,
1377 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1378 r_cfg->pfc.willing,
1379 r_cfg->pfc.mbc,
1380 r_cfg->pfc.pfccap,
1381 r_cfg->pfc.pfcenable);
1382 dev_info(&pf->pdev->dev,
1383 "remote port app_table: num_apps=%d\n",
1384 r_cfg->numapps);
1385 for (i = 0; i < r_cfg->numapps; i++) {
1386 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1387 i, r_cfg->app[i].priority,
1388 r_cfg->app[i].selector,
1389 r_cfg->app[i].protocolid);
1390 }
1391 } else {
1392 dev_info(&pf->pdev->dev,
1393 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
7204a785
SN		 1394 dev_info(&pf->pdev->dev, "dump switch\n");
1395 dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
02e9c290
JB		 1396 dev_info(&pf->pdev->dev, "dump reset stats\n");
1397 dev_info(&pf->pdev->dev, "dump port\n");
1398 dev_info(&pf->pdev->dev,
1399 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1400 }
1401
1402 } else if (strncmp(cmd_buf, "msg_enable", 10) == 0) {
1403 u32 level;
1404 cnt = sscanf(&cmd_buf[10], "%i", &level);
1405 if (cnt) {
1406 if (I40E_DEBUG_USER & level) {
1407 pf->hw.debug_mask = level;
1408 dev_info(&pf->pdev->dev,
1409 "set hw.debug_mask = 0x%08x\n",
1410 pf->hw.debug_mask);
1411 }
1412 pf->msg_enable = level;
1413 dev_info(&pf->pdev->dev, "set msg_enable = 0x%08x\n",
1414 pf->msg_enable);
1415 } else {
1416 dev_info(&pf->pdev->dev, "msg_enable = 0x%08x\n",
1417 pf->msg_enable);
1418 }
1419 } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
69bfb110 1420 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
23326186 1421 i40e_do_reset_safe(pf, (1 << __I40E_PF_RESET_REQUESTED));
02e9c290
JB		 1422
1423 } else if (strncmp(cmd_buf, "corer", 5) == 0) {
69bfb110 1424 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
23326186 1425 i40e_do_reset_safe(pf, (1 << __I40E_CORE_RESET_REQUESTED));
02e9c290
JB		 1426
1427 } else if (strncmp(cmd_buf, "globr", 5) == 0) {
69bfb110 1428 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
23326186 1429 i40e_do_reset_safe(pf, (1 << __I40E_GLOBAL_RESET_REQUESTED));
02e9c290 1430
7823fe34 1431 } else if (strncmp(cmd_buf, "empr", 4) == 0) {
69bfb110 1432 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
23326186 1433 i40e_do_reset_safe(pf, (1 << __I40E_EMP_RESET_REQUESTED));
7823fe34 1434
02e9c290
JB		 1435 } else if (strncmp(cmd_buf, "read", 4) == 0) {
1436 u32 address;
1437 u32 value;
2706a20e 1438 cnt = sscanf(&cmd_buf[4], "%i", &address);
02e9c290
JB		 1439 if (cnt != 1) {
1440 dev_info(&pf->pdev->dev, "read <reg>\n");
1441 goto command_write_done;
1442 }
1443
1444 /* check the range on address */
1445 if (address >= I40E_MAX_REGISTER) {
1446 dev_info(&pf->pdev->dev, "read reg address 0x%08x too large\n",
1447 address);
1448 goto command_write_done;
1449 }
1450
1451 value = rd32(&pf->hw, address);
1452 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1453 address, value);
1454
1455 } else if (strncmp(cmd_buf, "write", 5) == 0) {
1456 u32 address, value;
2706a20e 1457 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
02e9c290
JB		 1458 if (cnt != 2) {
1459 dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1460 goto command_write_done;
1461 }
1462
1463 /* check the range on address */
1464 if (address >= I40E_MAX_REGISTER) {
1465 dev_info(&pf->pdev->dev, "write reg address 0x%08x too large\n",
1466 address);
1467 goto command_write_done;
1468 }
1469 wr32(&pf->hw, address, value);
1470 value = rd32(&pf->hw, address);
1471 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1472 address, value);
1473 } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1474 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
2706a20e 1475 cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
02e9c290
JB		 1476 if (cnt == 0) {
1477 int i;
505682cd 1478 for (i = 0; i < pf->num_alloc_vsi; i++)
02e9c290
JB		 1479 i40e_vsi_reset_stats(pf->vsi[i]);
1480 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1481 } else if (cnt == 1) {
1482 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1483 if (!vsi) {
1484 dev_info(&pf->pdev->dev,
1485 "clear_stats vsi: bad vsi %d\n",
1486 vsi_seid);
1487 goto command_write_done;
1488 }
1489 i40e_vsi_reset_stats(vsi);
1490 dev_info(&pf->pdev->dev,
1491 "vsi clear stats called for vsi %d\n",
1492 vsi_seid);
1493 } else {
1494 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1495 }
694dc1cb
SN		 1496 } else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1497 if (pf->hw.partition_id == 1) {
1498 i40e_pf_reset_stats(pf);
1499 dev_info(&pf->pdev->dev, "port stats cleared\n");
1500 } else {
1501 dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1502 }
02e9c290 1503 } else {
694dc1cb 1504 dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
02e9c290 1505 }
f1143c4b
ASJ		 1506 } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1507 struct i40e_aq_desc *desc;
1508 i40e_status ret;
1509
1510 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1511 if (!desc)
1512 goto command_write_done;
1513 cnt = sscanf(&cmd_buf[11],
fbe82101 1514 "%hi %hi %hi %hi %i %i %i %i %i %i",
f1143c4b
ASJ		 1515 &desc->flags,
1516 &desc->opcode, &desc->datalen, &desc->retval,
1517 &desc->cookie_high, &desc->cookie_low,
1518 &desc->params.internal.param0,
1519 &desc->params.internal.param1,
1520 &desc->params.internal.param2,
1521 &desc->params.internal.param3);
1522 if (cnt != 10) {
1523 dev_info(&pf->pdev->dev,
1524 "send aq_cmd: bad command string, cnt=%d\n",
1525 cnt);
1526 kfree(desc);
1527 desc = NULL;
1528 goto command_write_done;
1529 }
1530 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1531 if (!ret) {
1532 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1533 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1534 dev_info(&pf->pdev->dev,
1535 "AQ command send failed Opcode %x AQ Error: %d\n",
1536 desc->opcode, pf->hw.aq.asq_last_status);
1537 } else {
1538 dev_info(&pf->pdev->dev,
1539 "AQ command send failed Opcode %x Status: %d\n",
1540 desc->opcode, ret);
1541 }
1542 dev_info(&pf->pdev->dev,
1543 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1544 desc->flags, desc->opcode, desc->datalen, desc->retval,
1545 desc->cookie_high, desc->cookie_low,
1546 desc->params.internal.param0,
1547 desc->params.internal.param1,
1548 desc->params.internal.param2,
1549 desc->params.internal.param3);
1550 kfree(desc);
1551 desc = NULL;
1552 } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1553 struct i40e_aq_desc *desc;
1554 i40e_status ret;
1555 u16 buffer_len;
1556 u8 *buff;
1557
1558 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1559 if (!desc)
1560 goto command_write_done;
1561 cnt = sscanf(&cmd_buf[20],
fbe82101 1562 "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
f1143c4b
ASJ		 1563 &desc->flags,
1564 &desc->opcode, &desc->datalen, &desc->retval,
1565 &desc->cookie_high, &desc->cookie_low,
1566 &desc->params.internal.param0,
1567 &desc->params.internal.param1,
1568 &desc->params.internal.param2,
1569 &desc->params.internal.param3,
1570 &buffer_len);
1571 if (cnt != 11) {
1572 dev_info(&pf->pdev->dev,
1573 "send indirect aq_cmd: bad command string, cnt=%d\n",
1574 cnt);
1575 kfree(desc);
1576 desc = NULL;
1577 goto command_write_done;
1578 }
1579 /* Just stub a buffer big enough in case user messed up */
1580 if (buffer_len == 0)
1581 buffer_len = 1280;
1582
1583 buff = kzalloc(buffer_len, GFP_KERNEL);
1584 if (!buff) {
1585 kfree(desc);
1586 desc = NULL;
1587 goto command_write_done;
1588 }
1589 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1590 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1591 buffer_len, NULL);
1592 if (!ret) {
1593 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1594 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1595 dev_info(&pf->pdev->dev,
1596 "AQ command send failed Opcode %x AQ Error: %d\n",
1597 desc->opcode, pf->hw.aq.asq_last_status);
1598 } else {
1599 dev_info(&pf->pdev->dev,
1600 "AQ command send failed Opcode %x Status: %d\n",
1601 desc->opcode, ret);
1602 }
1603 dev_info(&pf->pdev->dev,
1604 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1605 desc->flags, desc->opcode, desc->datalen, desc->retval,
1606 desc->cookie_high, desc->cookie_low,
1607 desc->params.internal.param0,
1608 desc->params.internal.param1,
1609 desc->params.internal.param2,
1610 desc->params.internal.param3);
1611 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1612 DUMP_PREFIX_OFFSET, 16, 1,
1613 buff, buffer_len, true);
1614 kfree(buff);
1615 buff = NULL;
1616 kfree(desc);
1617 desc = NULL;
02e9c290
JB		 1618 } else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
1619 (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
17a73f6b 1620 struct i40e_fdir_filter fd_data;
02e9c290
JB		 1621 u16 packet_len, i, j = 0;
1622 char *asc_packet;
17a73f6b 1623 u8 *raw_packet;
02e9c290 1624 bool add = false;
738a9e9b 1625 int ret;
02e9c290 1626
55a5e60b
ASJ		 1627 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
1628 goto command_write_done;
1629
1630 if (strncmp(cmd_buf, "add", 3) == 0)
1631 add = true;
1632
1633 if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED))
1634 goto command_write_done;
1635
17a73f6b 1636 asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
02e9c290
JB		 1637 GFP_KERNEL);
1638 if (!asc_packet)
1639 goto command_write_done;
1640
17a73f6b
JG		 1641 raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_SIZE,
1642 GFP_KERNEL);
02e9c290 1643
17a73f6b 1644 if (!raw_packet) {
02e9c290
JB		 1645 kfree(asc_packet);
1646 asc_packet = NULL;
1647 goto command_write_done;
1648 }
1649
02e9c290 1650 cnt = sscanf(&cmd_buf[13],
5561b6a1 1651 "%hx %2hhx %2hhx %hx %2hhx %2hhx %hx %x %hd %511s",
02e9c290
JB		 1652 &fd_data.q_index,
1653 &fd_data.flex_off, &fd_data.pctype,
1654 &fd_data.dest_vsi, &fd_data.dest_ctl,
1655 &fd_data.fd_status, &fd_data.cnt_index,
1656 &fd_data.fd_id, &packet_len, asc_packet);
1657 if (cnt != 10) {
1658 dev_info(&pf->pdev->dev,
1659 "program fd_filter: bad command string, cnt=%d\n",
1660 cnt);
1661 kfree(asc_packet);
1662 asc_packet = NULL;
17a73f6b 1663 kfree(raw_packet);
02e9c290
JB		 1664 goto command_write_done;
1665 }
1666
1667 /* fix packet length if user entered 0 */
1668 if (packet_len == 0)
17a73f6b 1669 packet_len = I40E_FDIR_MAX_RAW_PACKET_SIZE;
02e9c290
JB		 1670
1671 /* make sure to check the max as well */
1672 packet_len = min_t(u16,
17a73f6b 1673 packet_len, I40E_FDIR_MAX_RAW_PACKET_SIZE);
02e9c290 1674
02e9c290
JB		 1675 for (i = 0; i < packet_len; i++) {
1676 sscanf(&asc_packet[j], "%2hhx ",
17a73f6b 1677 &raw_packet[i]);
02e9c290 1678 j += 3;
02e9c290 1679 }
3753cb24
NP		 1680 dev_info(&pf->pdev->dev, "FD raw packet dump\n");
1681 print_hex_dump(KERN_INFO, "FD raw packet: ",
1682 DUMP_PREFIX_OFFSET, 16, 1,
17a73f6b
JG		 1683 raw_packet, packet_len, true);
1684 ret = i40e_program_fdir_filter(&fd_data, raw_packet, pf, add);
02e9c290
JB		 1685 if (!ret) {
1686 dev_info(&pf->pdev->dev, "Filter command send Status : Success\n");
1687 } else {
1688 dev_info(&pf->pdev->dev,
1689 "Filter command send failed %d\n", ret);
1690 }
17a73f6b
JG		 1691 kfree(raw_packet);
1692 raw_packet = NULL;
02e9c290
JB		 1693 kfree(asc_packet);
1694 asc_packet = NULL;
cbf61325
ASJ		 1695 } else if (strncmp(cmd_buf, "fd-atr off", 10) == 0) {
1696 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false);
1697 } else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) {
1698 i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true);
e17ff05c
ASJ		 1699 } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1700 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1701 i40e_get_current_fd_count(pf));
02e9c290
JB		 1702 } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1703 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1704 int ret;
1705 ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
1706 if (ret) {
1707 dev_info(&pf->pdev->dev,
1708 "Stop LLDP AQ command failed =0x%x\n",
1709 pf->hw.aq.asq_last_status);
1710 goto command_write_done;
1711 }
4e3b35b0
NP		 1712 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1713 pf->hw.mac.addr,
1714 I40E_ETH_P_LLDP, 0,
1715 pf->vsi[pf->lan_vsi]->seid,
1716 0, true, NULL, NULL);
1717 if (ret) {
1718 dev_info(&pf->pdev->dev,
1719 "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1720 __func__, pf->hw.aq.asq_last_status);
1721 goto command_write_done;
1722 }
1723#ifdef CONFIG_I40E_DCB
1724 pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1725 DCB_CAP_DCBX_VER_IEEE;
1726#endif /* CONFIG_I40E_DCB */
02e9c290
JB		 1727 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1728 int ret;
4e3b35b0
NP		 1729 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1730 pf->hw.mac.addr,
1731 I40E_ETH_P_LLDP, 0,
1732 pf->vsi[pf->lan_vsi]->seid,
1733 0, false, NULL, NULL);
1734 if (ret) {
1735 dev_info(&pf->pdev->dev,
1736 "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1737 __func__, pf->hw.aq.asq_last_status);
1738 /* Continue and start FW LLDP anyways */
1739 }
1740
02e9c290
JB		 1741 ret = i40e_aq_start_lldp(&pf->hw, NULL);
1742 if (ret) {
1743 dev_info(&pf->pdev->dev,
1744 "Start LLDP AQ command failed =0x%x\n",
1745 pf->hw.aq.asq_last_status);
1746 goto command_write_done;
1747 }
4e3b35b0
NP		 1748#ifdef CONFIG_I40E_DCB
1749 pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1750 DCB_CAP_DCBX_VER_IEEE;
1751#endif /* CONFIG_I40E_DCB */
02e9c290
JB		 1752 } else if (strncmp(&cmd_buf[5],
1753 "get local", 9) == 0) {
738a9e9b 1754 u16 llen, rlen;
3753cb24 1755 int ret;
02e9c290 1756 u8 *buff;
02e9c290
JB		 1757 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1758 if (!buff)
1759 goto command_write_done;
1760
1761 ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1762 I40E_AQ_LLDP_MIB_LOCAL,
1763 buff, I40E_LLDPDU_SIZE,
1764 &llen, &rlen, NULL);
1765 if (ret) {
1766 dev_info(&pf->pdev->dev,
1767 "Get LLDP MIB (local) AQ command failed =0x%x\n",
1768 pf->hw.aq.asq_last_status);
1769 kfree(buff);
1770 buff = NULL;
1771 goto command_write_done;
1772 }
3753cb24
NP		 1773 dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1774 print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1775 DUMP_PREFIX_OFFSET, 16, 1,
1776 buff, I40E_LLDPDU_SIZE, true);
02e9c290
JB		 1777 kfree(buff);
1778 buff = NULL;
1779 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
738a9e9b 1780 u16 llen, rlen;
3753cb24 1781 int ret;
02e9c290 1782 u8 *buff;
02e9c290
JB		 1783 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1784 if (!buff)
1785 goto command_write_done;
1786
1787 ret = i40e_aq_get_lldp_mib(&pf->hw,
1788 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
c27936e7 1789 I40E_AQ_LLDP_MIB_REMOTE,
02e9c290
JB		 1790 buff, I40E_LLDPDU_SIZE,
1791 &llen, &rlen, NULL);
1792 if (ret) {
1793 dev_info(&pf->pdev->dev,
1794 "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1795 pf->hw.aq.asq_last_status);
1796 kfree(buff);
1797 buff = NULL;
1798 goto command_write_done;
1799 }
3753cb24
NP		 1800 dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1801 print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1802 DUMP_PREFIX_OFFSET, 16, 1,
1803 buff, I40E_LLDPDU_SIZE, true);
02e9c290
JB		 1804 kfree(buff);
1805 buff = NULL;
1806 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1807 int ret;
1808 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1809 true, NULL);
1810 if (ret) {
1811 dev_info(&pf->pdev->dev,
1812 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1813 pf->hw.aq.asq_last_status);
1814 goto command_write_done;
1815 }
1816 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1817 int ret;
1818 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1819 false, NULL);
1820 if (ret) {
1821 dev_info(&pf->pdev->dev,
1822 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1823 pf->hw.aq.asq_last_status);
1824 goto command_write_done;
1825 }
1826 }
1827 } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
3753cb24 1828 u16 buffer_len, bytes;
02e9c290
JB		 1829 u16 module;
1830 u32 offset;
1831 u16 *buff;
1832 int ret;
1833
1834 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1835 &module, &offset, &buffer_len);
1836 if (cnt == 0) {
1837 module = 0;
1838 offset = 0;
1839 buffer_len = 0;
1840 } else if (cnt == 1) {
1841 offset = 0;
1842 buffer_len = 0;
1843 } else if (cnt == 2) {
1844 buffer_len = 0;
1845 } else if (cnt > 3) {
1846 dev_info(&pf->pdev->dev,
1847 "nvm read: bad command string, cnt=%d\n", cnt);
1848 goto command_write_done;
1849 }
1850
520dfd8b
JB		 1851 /* set the max length */
1852 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
02e9c290
JB		 1853
1854 bytes = 2 * buffer_len;
520dfd8b
JB		 1855
1856 /* read at least 1k bytes, no more than 4kB */
1857 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
02e9c290
JB		 1858 buff = kzalloc(bytes, GFP_KERNEL);
1859 if (!buff)
1860 goto command_write_done;
1861
1862 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1863 if (ret) {
1864 dev_info(&pf->pdev->dev,
1865 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1866 ret, pf->hw.aq.asq_last_status);
1867 kfree(buff);
1868 goto command_write_done;
1869 }
1870
1871 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1872 bytes, (u8 *)buff, true, NULL);
1873 i40e_release_nvm(&pf->hw);
1874 if (ret) {
1875 dev_info(&pf->pdev->dev,
1876 "Read NVM AQ failed err=%d status=0x%x\n",
1877 ret, pf->hw.aq.asq_last_status);
1878 } else {
1879 dev_info(&pf->pdev->dev,
1880 "Read NVM module=0x%x offset=0x%x words=%d\n",
1881 module, offset, buffer_len);
a45e88c9 1882 if (bytes)
3753cb24
NP		 1883 print_hex_dump(KERN_INFO, "NVM Dump: ",
1884 DUMP_PREFIX_OFFSET, 16, 2,
a45e88c9 1885 buff, bytes, true);
02e9c290
JB		 1886 }
1887 kfree(buff);
1888 buff = NULL;
1889 } else {
1890 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1891 dev_info(&pf->pdev->dev, "available commands\n");
1892 dev_info(&pf->pdev->dev, " add vsi [relay_seid]\n");
1893 dev_info(&pf->pdev->dev, " del vsi [vsi_seid]\n");
1894 dev_info(&pf->pdev->dev, " add relay <uplink_seid> <vsi_seid>\n");
1895 dev_info(&pf->pdev->dev, " del relay <relay_seid>\n");
1896 dev_info(&pf->pdev->dev, " add macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1897 dev_info(&pf->pdev->dev, " del macaddr <vsi_seid> <aa:bb:cc:dd:ee:ff> [vlan]\n");
1898 dev_info(&pf->pdev->dev, " add pvid <vsi_seid> <vid>\n");
1899 dev_info(&pf->pdev->dev, " del pvid <vsi_seid>\n");
1900 dev_info(&pf->pdev->dev, " dump switch\n");
1901 dev_info(&pf->pdev->dev, " dump vsi [seid]\n");
1902 dev_info(&pf->pdev->dev, " dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1903 dev_info(&pf->pdev->dev, " dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1904 dev_info(&pf->pdev->dev, " dump desc aq\n");
02e9c290
JB		 1905 dev_info(&pf->pdev->dev, " dump reset stats\n");
1906 dev_info(&pf->pdev->dev, " msg_enable [level]\n");
1907 dev_info(&pf->pdev->dev, " read <reg>\n");
1908 dev_info(&pf->pdev->dev, " write <reg> <value>\n");
1909 dev_info(&pf->pdev->dev, " clear_stats vsi [seid]\n");
694dc1cb 1910 dev_info(&pf->pdev->dev, " clear_stats port\n");
02e9c290
JB		 1911 dev_info(&pf->pdev->dev, " pfr\n");
1912 dev_info(&pf->pdev->dev, " corer\n");
1913 dev_info(&pf->pdev->dev, " globr\n");
f1143c4b
ASJ		 1914 dev_info(&pf->pdev->dev, " send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1915 dev_info(&pf->pdev->dev, " send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
02e9c290
JB		 1916 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");
1917 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");
cbf61325
ASJ		 1918 dev_info(&pf->pdev->dev, " fd-atr off\n");
1919 dev_info(&pf->pdev->dev, " fd-atr on\n");
e17ff05c 1920 dev_info(&pf->pdev->dev, " fd current cnt");
02e9c290
JB		 1921 dev_info(&pf->pdev->dev, " lldp start\n");
1922 dev_info(&pf->pdev->dev, " lldp stop\n");
1923 dev_info(&pf->pdev->dev, " lldp get local\n");
1924 dev_info(&pf->pdev->dev, " lldp get remote\n");
1925 dev_info(&pf->pdev->dev, " lldp event on\n");
1926 dev_info(&pf->pdev->dev, " lldp event off\n");
1927 dev_info(&pf->pdev->dev, " nvm read [module] [word_offset] [word_count]\n");
1928 }
1929
1930command_write_done:
1931 kfree(cmd_buf);
1932 cmd_buf = NULL;
02e9c290
JB		 1933 return count;
1934}
1935
1936static const struct file_operations i40e_dbg_command_fops = {
1937 .owner = THIS_MODULE,
1938 .open = simple_open,
1939 .read = i40e_dbg_command_read,
1940 .write = i40e_dbg_command_write,
1941};
1942
1943/**************************************************************
1944 * netdev_ops
1945 * The netdev_ops entry in debugfs is for giving the driver commands
1946 * to be executed from the netdev operations.
1947 **************************************************************/
d1da3ac0 1948static char i40e_dbg_netdev_ops_buf[256] = "";
02e9c290
JB		 1949
1950/**
1951 * i40e_dbg_netdev_ops - read for netdev_ops datum
1952 * @filp: the opened file
1953 * @buffer: where to write the data for the user to read
1954 * @count: the size of the user's buffer
1955 * @ppos: file position offset
1956 **/
1957static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1958 size_t count, loff_t *ppos)
1959{
1960 struct i40e_pf *pf = filp->private_data;
1961 int bytes_not_copied;
1962 int buf_size = 256;
1963 char *buf;
1964 int len;
1965
1966 /* don't allow partal reads */
1967 if (*ppos != 0)
1968 return 0;
1969 if (count < buf_size)
1970 return -ENOSPC;
1971
1972 buf = kzalloc(buf_size, GFP_KERNEL);
1973 if (!buf)
1974 return -ENOSPC;
1975
1976 len = snprintf(buf, buf_size, "%s: %s\n",
1977 pf->vsi[pf->lan_vsi]->netdev->name,
1978 i40e_dbg_netdev_ops_buf);
1979
1980 bytes_not_copied = copy_to_user(buffer, buf, len);
1981 kfree(buf);
1982
1983 if (bytes_not_copied < 0)
1984 return bytes_not_copied;
1985
1986 *ppos = len;
1987 return len;
1988}
1989
1990/**
1991 * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1992 * @filp: the opened file
1993 * @buffer: where to find the user's data
1994 * @count: the length of the user's data
1995 * @ppos: file position offset
1996 **/
1997static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1998 const char __user *buffer,
1999 size_t count, loff_t *ppos)
2000{
2001 struct i40e_pf *pf = filp->private_data;
2002 int bytes_not_copied;
2003 struct i40e_vsi *vsi;
004173cb 2004 char *buf_tmp;
02e9c290
JB		 2005 int vsi_seid;
2006 int i, cnt;
2007
2008 /* don't allow partial writes */
2009 if (*ppos != 0)
2010 return 0;
2011 if (count >= sizeof(i40e_dbg_netdev_ops_buf))
2012 return -ENOSPC;
2013
2014 memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
2015 bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
2016 buffer, count);
2017 if (bytes_not_copied < 0)
2018 return bytes_not_copied;
2019 else if (bytes_not_copied > 0)
2020 count -= bytes_not_copied;
2021 i40e_dbg_netdev_ops_buf[count] = '\0';
2022
004173cb
JB		 2023 buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
2024 if (buf_tmp) {
2025 *buf_tmp = '\0';
2026 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
2027 }
2028
02e9c290
JB		 2029 if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
2030 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2031 if (cnt != 1) {
2032 dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
2033 goto netdev_ops_write_done;
2034 }
2035 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2036 if (!vsi) {
2037 dev_info(&pf->pdev->dev,
2038 "tx_timeout: VSI %d not found\n", vsi_seid);
ca04657b
SN		 2039 } else if (!vsi->netdev) {
2040 dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n",
2041 vsi_seid);
2042 } else if (test_bit(__I40E_DOWN, &vsi->state)) {
2043 dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n",
2044 vsi_seid);
2045 } else if (rtnl_trylock()) {
02e9c290
JB		 2046 vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
2047 rtnl_unlock();
2048 dev_info(&pf->pdev->dev, "tx_timeout called\n");
2049 } else {
2050 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2051 }
2052 } else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
2053 int mtu;
2054 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
2055 &vsi_seid, &mtu);
2056 if (cnt != 2) {
2057 dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
2058 goto netdev_ops_write_done;
2059 }
2060 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2061 if (!vsi) {
2062 dev_info(&pf->pdev->dev,
2063 "change_mtu: VSI %d not found\n", vsi_seid);
ca04657b
SN		 2064 } else if (!vsi->netdev) {
2065 dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
2066 vsi_seid);
2067 } else if (rtnl_trylock()) {
02e9c290
JB		 2068 vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
2069 mtu);
2070 rtnl_unlock();
2071 dev_info(&pf->pdev->dev, "change_mtu called\n");
2072 } else {
2073 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2074 }
2075
2076 } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
2077 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
2078 if (cnt != 1) {
2079 dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
2080 goto netdev_ops_write_done;
2081 }
2082 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2083 if (!vsi) {
2084 dev_info(&pf->pdev->dev,
2085 "set_rx_mode: VSI %d not found\n", vsi_seid);
ca04657b
SN		 2086 } else if (!vsi->netdev) {
2087 dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
2088 vsi_seid);
2089 } else if (rtnl_trylock()) {
02e9c290
JB		 2090 vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
2091 rtnl_unlock();
2092 dev_info(&pf->pdev->dev, "set_rx_mode called\n");
2093 } else {
2094 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
2095 }
2096
2097 } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
2098 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
2099 if (cnt != 1) {
2100 dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
2101 goto netdev_ops_write_done;
2102 }
2103 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
2104 if (!vsi) {
2105 dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
2106 vsi_seid);
ca04657b
SN		 2107 } else if (!vsi->netdev) {
2108 dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
2109 vsi_seid);
2110 } else {
2111 for (i = 0; i < vsi->num_q_vectors; i++)
2112 napi_schedule(&vsi->q_vectors[i]->napi);
2113 dev_info(&pf->pdev->dev, "napi called\n");
02e9c290 2114 }
02e9c290
JB		 2115 } else {
2116 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
2117 i40e_dbg_netdev_ops_buf);
2118 dev_info(&pf->pdev->dev, "available commands\n");
2119 dev_info(&pf->pdev->dev, " tx_timeout <vsi_seid>\n");
2120 dev_info(&pf->pdev->dev, " change_mtu <vsi_seid> <mtu>\n");
2121 dev_info(&pf->pdev->dev, " set_rx_mode <vsi_seid>\n");
2122 dev_info(&pf->pdev->dev, " napi <vsi_seid>\n");
2123 }
2124netdev_ops_write_done:
2125 return count;
2126}
2127
2128static const struct file_operations i40e_dbg_netdev_ops_fops = {
2129 .owner = THIS_MODULE,
2130 .open = simple_open,
2131 .read = i40e_dbg_netdev_ops_read,
2132 .write = i40e_dbg_netdev_ops_write,
2133};
2134
2135/**
b40c82e6
JK		 2136 * i40e_dbg_pf_init - setup the debugfs directory for the PF
2137 * @pf: the PF that is starting up
02e9c290
JB		 2138 **/
2139void i40e_dbg_pf_init(struct i40e_pf *pf)
2140{
6301002f 2141 struct dentry *pfile;
02e9c290 2142 const char *name = pci_name(pf->pdev);
6301002f 2143 const struct device *dev = &pf->pdev->dev;
02e9c290
JB		 2144
2145 pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
6301002f
JB		 2146 if (!pf->i40e_dbg_pf)
2147 return;
2148
2149 pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
2150 &i40e_dbg_command_fops);
2151 if (!pfile)
2152 goto create_failed;
2153
2154 pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
2155 &i40e_dbg_dump_fops);
2156 if (!pfile)
2157 goto create_failed;
2158
2159 pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
2160 &i40e_dbg_netdev_ops_fops);
2161 if (!pfile)
2162 goto create_failed;
2163
2164 return;
2165
2166create_failed:
2167 dev_info(dev, "debugfs dir/file for %s failed\n", name);
2168 debugfs_remove_recursive(pf->i40e_dbg_pf);
2169 return;
02e9c290
JB		 2170}
2171
2172/**
b40c82e6
JK		 2173 * i40e_dbg_pf_exit - clear out the PF's debugfs entries
2174 * @pf: the PF that is stopping
02e9c290
JB		 2175 **/
2176void i40e_dbg_pf_exit(struct i40e_pf *pf)
2177{
2178 debugfs_remove_recursive(pf->i40e_dbg_pf);
2179 pf->i40e_dbg_pf = NULL;
2180
2181 kfree(i40e_dbg_dump_buf);
2182 i40e_dbg_dump_buf = NULL;
2183}
2184
2185/**
2186 * i40e_dbg_init - start up debugfs for the driver
2187 **/
2188void i40e_dbg_init(void)
2189{
2190 i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
2191 if (!i40e_dbg_root)
2192 pr_info("init of debugfs failed\n");
2193}
2194
2195/**
2196 * i40e_dbg_exit - clean out the driver's debugfs entries
2197 **/
2198void i40e_dbg_exit(void)
2199{
2200 debugfs_remove_recursive(i40e_dbg_root);
2201 i40e_dbg_root = NULL;
2202}
2203
2204#endif /* CONFIG_DEBUG_FS */
Linux kernel - Deliverables
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