1
2
3
4#ifdef CONFIG_DEBUG_FS
5
6#include <linux/fs.h>
7#include <linux/debugfs.h>
8
9#include "i40e.h"
10
11static struct dentry *i40e_dbg_root;
12
13
14
15
16
17
18static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
19{
20 int i;
21
22 if (seid < 0)
23 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
24 else
25 for (i = 0; i < pf->num_alloc_vsi; i++)
26 if (pf->vsi[i] && (pf->vsi[i]->seid == seid))
27 return pf->vsi[i];
28
29 return NULL;
30}
31
32
33
34
35
36
37static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
38{
39 int i;
40
41 for (i = 0; i < I40E_MAX_VEB; i++)
42 if (pf->veb[i] && pf->veb[i]->seid == seid)
43 return pf->veb[i];
44 return NULL;
45}
46
47
48
49
50
51
52
53
54static char i40e_dbg_command_buf[256] = "";
55
56
57
58
59
60
61
62
63static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
64 size_t count, loff_t *ppos)
65{
66 struct i40e_pf *pf = filp->private_data;
67 int bytes_not_copied;
68 int buf_size = 256;
69 char *buf;
70 int len;
71
72
73 if (*ppos != 0)
74 return 0;
75 if (count < buf_size)
76 return -ENOSPC;
77
78 buf = kzalloc(buf_size, GFP_KERNEL);
79 if (!buf)
80 return -ENOSPC;
81
82 len = snprintf(buf, buf_size, "%s: %s\n",
83 pf->vsi[pf->lan_vsi]->netdev->name,
84 i40e_dbg_command_buf);
85
86 bytes_not_copied = copy_to_user(buffer, buf, len);
87 kfree(buf);
88
89 if (bytes_not_copied)
90 return -EFAULT;
91
92 *ppos = len;
93 return len;
94}
95
96static char *i40e_filter_state_string[] = {
97 "INVALID",
98 "NEW",
99 "ACTIVE",
100 "FAILED",
101 "REMOVE",
102};
103
104
105
106
107
108
109static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
110{
111 struct rtnl_link_stats64 *nstat;
112 struct i40e_mac_filter *f;
113 struct i40e_vsi *vsi;
114 int i, bkt;
115
116 vsi = i40e_dbg_find_vsi(pf, seid);
117 if (!vsi) {
118 dev_info(&pf->pdev->dev,
119 "dump %d: seid not found\n", seid);
120 return;
121 }
122 dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
123 if (vsi->netdev) {
124 struct net_device *nd = vsi->netdev;
125
126 dev_info(&pf->pdev->dev, " netdev: name = %s, state = %lu, flags = 0x%08x\n",
127 nd->name, nd->state, nd->flags);
128 dev_info(&pf->pdev->dev, " features = 0x%08lx\n",
129 (unsigned long int)nd->features);
130 dev_info(&pf->pdev->dev, " hw_features = 0x%08lx\n",
131 (unsigned long int)nd->hw_features);
132 dev_info(&pf->pdev->dev, " vlan_features = 0x%08lx\n",
133 (unsigned long int)nd->vlan_features);
134 }
135 dev_info(&pf->pdev->dev,
136 " flags = 0x%08lx, netdev_registered = %i, current_netdev_flags = 0x%04x\n",
137 vsi->flags, vsi->netdev_registered, vsi->current_netdev_flags);
138 for (i = 0; i < BITS_TO_LONGS(__I40E_VSI_STATE_SIZE__); i++)
139 dev_info(&pf->pdev->dev,
140 " state[%d] = %08lx\n",
141 i, vsi->state[i]);
142 if (vsi == pf->vsi[pf->lan_vsi])
143 dev_info(&pf->pdev->dev, " MAC address: %pM SAN MAC: %pM Port MAC: %pM\n",
144 pf->hw.mac.addr,
145 pf->hw.mac.san_addr,
146 pf->hw.mac.port_addr);
147 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
148 dev_info(&pf->pdev->dev,
149 " mac_filter_hash: %pM vid=%d, state %s\n",
150 f->macaddr, f->vlan,
151 i40e_filter_state_string[f->state]);
152 }
153 dev_info(&pf->pdev->dev, " active_filters %u, promisc_threshold %u, overflow promisc %s\n",
154 vsi->active_filters, vsi->promisc_threshold,
155 (test_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state) ?
156 "ON" : "OFF"));
157 nstat = i40e_get_vsi_stats_struct(vsi);
158 dev_info(&pf->pdev->dev,
159 " net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
160 (unsigned long int)nstat->rx_packets,
161 (unsigned long int)nstat->rx_bytes,
162 (unsigned long int)nstat->rx_errors,
163 (unsigned long int)nstat->rx_dropped);
164 dev_info(&pf->pdev->dev,
165 " net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
166 (unsigned long int)nstat->tx_packets,
167 (unsigned long int)nstat->tx_bytes,
168 (unsigned long int)nstat->tx_errors,
169 (unsigned long int)nstat->tx_dropped);
170 dev_info(&pf->pdev->dev,
171 " net_stats: multicast = %lu, collisions = %lu\n",
172 (unsigned long int)nstat->multicast,
173 (unsigned long int)nstat->collisions);
174 dev_info(&pf->pdev->dev,
175 " net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
176 (unsigned long int)nstat->rx_length_errors,
177 (unsigned long int)nstat->rx_over_errors,
178 (unsigned long int)nstat->rx_crc_errors);
179 dev_info(&pf->pdev->dev,
180 " net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
181 (unsigned long int)nstat->rx_frame_errors,
182 (unsigned long int)nstat->rx_fifo_errors,
183 (unsigned long int)nstat->rx_missed_errors);
184 dev_info(&pf->pdev->dev,
185 " net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
186 (unsigned long int)nstat->tx_aborted_errors,
187 (unsigned long int)nstat->tx_carrier_errors,
188 (unsigned long int)nstat->tx_fifo_errors);
189 dev_info(&pf->pdev->dev,
190 " net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
191 (unsigned long int)nstat->tx_heartbeat_errors,
192 (unsigned long int)nstat->tx_window_errors);
193 dev_info(&pf->pdev->dev,
194 " net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
195 (unsigned long int)nstat->rx_compressed,
196 (unsigned long int)nstat->tx_compressed);
197 dev_info(&pf->pdev->dev,
198 " net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
199 (unsigned long int)vsi->net_stats_offsets.rx_packets,
200 (unsigned long int)vsi->net_stats_offsets.rx_bytes,
201 (unsigned long int)vsi->net_stats_offsets.rx_errors,
202 (unsigned long int)vsi->net_stats_offsets.rx_dropped);
203 dev_info(&pf->pdev->dev,
204 " net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
205 (unsigned long int)vsi->net_stats_offsets.tx_packets,
206 (unsigned long int)vsi->net_stats_offsets.tx_bytes,
207 (unsigned long int)vsi->net_stats_offsets.tx_errors,
208 (unsigned long int)vsi->net_stats_offsets.tx_dropped);
209 dev_info(&pf->pdev->dev,
210 " net_stats_offsets: multicast = %lu, collisions = %lu\n",
211 (unsigned long int)vsi->net_stats_offsets.multicast,
212 (unsigned long int)vsi->net_stats_offsets.collisions);
213 dev_info(&pf->pdev->dev,
214 " net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
215 (unsigned long int)vsi->net_stats_offsets.rx_length_errors,
216 (unsigned long int)vsi->net_stats_offsets.rx_over_errors,
217 (unsigned long int)vsi->net_stats_offsets.rx_crc_errors);
218 dev_info(&pf->pdev->dev,
219 " net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
220 (unsigned long int)vsi->net_stats_offsets.rx_frame_errors,
221 (unsigned long int)vsi->net_stats_offsets.rx_fifo_errors,
222 (unsigned long int)vsi->net_stats_offsets.rx_missed_errors);
223 dev_info(&pf->pdev->dev,
224 " net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
225 (unsigned long int)vsi->net_stats_offsets.tx_aborted_errors,
226 (unsigned long int)vsi->net_stats_offsets.tx_carrier_errors,
227 (unsigned long int)vsi->net_stats_offsets.tx_fifo_errors);
228 dev_info(&pf->pdev->dev,
229 " net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
230 (unsigned long int)vsi->net_stats_offsets.tx_heartbeat_errors,
231 (unsigned long int)vsi->net_stats_offsets.tx_window_errors);
232 dev_info(&pf->pdev->dev,
233 " net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
234 (unsigned long int)vsi->net_stats_offsets.rx_compressed,
235 (unsigned long int)vsi->net_stats_offsets.tx_compressed);
236 dev_info(&pf->pdev->dev,
237 " tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
238 vsi->tx_restart, vsi->tx_busy,
239 vsi->rx_buf_failed, vsi->rx_page_failed);
240 rcu_read_lock();
241 for (i = 0; i < vsi->num_queue_pairs; i++) {
242 struct i40e_ring *rx_ring = READ_ONCE(vsi->rx_rings[i]);
243
244 if (!rx_ring)
245 continue;
246
247 dev_info(&pf->pdev->dev,
248 " rx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
249 i, *rx_ring->state,
250 rx_ring->queue_index,
251 rx_ring->reg_idx);
252 dev_info(&pf->pdev->dev,
253 " rx_rings[%i]: rx_buf_len = %d\n",
254 i, rx_ring->rx_buf_len);
255 dev_info(&pf->pdev->dev,
256 " rx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
257 i,
258 rx_ring->next_to_use,
259 rx_ring->next_to_clean,
260 rx_ring->ring_active);
261 dev_info(&pf->pdev->dev,
262 " rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
263 i, rx_ring->stats.packets,
264 rx_ring->stats.bytes,
265 rx_ring->rx_stats.non_eop_descs);
266 dev_info(&pf->pdev->dev,
267 " rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
268 i,
269 rx_ring->rx_stats.alloc_page_failed,
270 rx_ring->rx_stats.alloc_buff_failed);
271 dev_info(&pf->pdev->dev,
272 " rx_rings[%i]: rx_stats: realloc_count = %lld, page_reuse_count = %lld\n",
273 i,
274 rx_ring->rx_stats.realloc_count,
275 rx_ring->rx_stats.page_reuse_count);
276 dev_info(&pf->pdev->dev,
277 " rx_rings[%i]: size = %i\n",
278 i, rx_ring->size);
279 dev_info(&pf->pdev->dev,
280 " rx_rings[%i]: itr_setting = %d (%s)\n",
281 i, rx_ring->itr_setting,
282 ITR_IS_DYNAMIC(rx_ring->itr_setting) ? "dynamic" : "fixed");
283 }
284 for (i = 0; i < vsi->num_queue_pairs; i++) {
285 struct i40e_ring *tx_ring = READ_ONCE(vsi->tx_rings[i]);
286
287 if (!tx_ring)
288 continue;
289
290 dev_info(&pf->pdev->dev,
291 " tx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
292 i, *tx_ring->state,
293 tx_ring->queue_index,
294 tx_ring->reg_idx);
295 dev_info(&pf->pdev->dev,
296 " tx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
297 i,
298 tx_ring->next_to_use,
299 tx_ring->next_to_clean,
300 tx_ring->ring_active);
301 dev_info(&pf->pdev->dev,
302 " tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
303 i, tx_ring->stats.packets,
304 tx_ring->stats.bytes,
305 tx_ring->tx_stats.restart_queue);
306 dev_info(&pf->pdev->dev,
307 " tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
308 i,
309 tx_ring->tx_stats.tx_busy,
310 tx_ring->tx_stats.tx_done_old);
311 dev_info(&pf->pdev->dev,
312 " tx_rings[%i]: size = %i\n",
313 i, tx_ring->size);
314 dev_info(&pf->pdev->dev,
315 " tx_rings[%i]: DCB tc = %d\n",
316 i, tx_ring->dcb_tc);
317 dev_info(&pf->pdev->dev,
318 " tx_rings[%i]: itr_setting = %d (%s)\n",
319 i, tx_ring->itr_setting,
320 ITR_IS_DYNAMIC(tx_ring->itr_setting) ? "dynamic" : "fixed");
321 }
322 rcu_read_unlock();
323 dev_info(&pf->pdev->dev,
324 " work_limit = %d\n",
325 vsi->work_limit);
326 dev_info(&pf->pdev->dev,
327 " max_frame = %d, rx_buf_len = %d dtype = %d\n",
328 vsi->max_frame, vsi->rx_buf_len, 0);
329 dev_info(&pf->pdev->dev,
330 " num_q_vectors = %i, base_vector = %i\n",
331 vsi->num_q_vectors, vsi->base_vector);
332 dev_info(&pf->pdev->dev,
333 " seid = %d, id = %d, uplink_seid = %d\n",
334 vsi->seid, vsi->id, vsi->uplink_seid);
335 dev_info(&pf->pdev->dev,
336 " base_queue = %d, num_queue_pairs = %d, num_tx_desc = %d, num_rx_desc = %d\n",
337 vsi->base_queue, vsi->num_queue_pairs, vsi->num_tx_desc,
338 vsi->num_rx_desc);
339 dev_info(&pf->pdev->dev, " type = %i\n", vsi->type);
340 if (vsi->type == I40E_VSI_SRIOV)
341 dev_info(&pf->pdev->dev, " VF ID = %i\n", vsi->vf_id);
342 dev_info(&pf->pdev->dev,
343 " info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
344 vsi->info.valid_sections, vsi->info.switch_id);
345 dev_info(&pf->pdev->dev,
346 " info: sw_reserved[] = 0x%02x 0x%02x\n",
347 vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
348 dev_info(&pf->pdev->dev,
349 " info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
350 vsi->info.sec_flags, vsi->info.sec_reserved);
351 dev_info(&pf->pdev->dev,
352 " info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
353 vsi->info.pvid, vsi->info.fcoe_pvid,
354 vsi->info.port_vlan_flags);
355 dev_info(&pf->pdev->dev,
356 " info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
357 vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
358 vsi->info.pvlan_reserved[2]);
359 dev_info(&pf->pdev->dev,
360 " info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
361 vsi->info.ingress_table, vsi->info.egress_table);
362 dev_info(&pf->pdev->dev,
363 " info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
364 vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
365 vsi->info.cas_pv_reserved);
366 dev_info(&pf->pdev->dev,
367 " info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
368 vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
369 vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
370 vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
371 vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
372 dev_info(&pf->pdev->dev,
373 " info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
374 vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
375 vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
376 vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
377 vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
378 dev_info(&pf->pdev->dev,
379 " info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
380 vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
381 vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
382 vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
383 vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
384 dev_info(&pf->pdev->dev,
385 " info: queueing_opt_flags = 0x%02x queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
386 vsi->info.queueing_opt_flags,
387 vsi->info.queueing_opt_reserved[0],
388 vsi->info.queueing_opt_reserved[1],
389 vsi->info.queueing_opt_reserved[2]);
390 dev_info(&pf->pdev->dev,
391 " info: up_enable_bits = 0x%02x\n",
392 vsi->info.up_enable_bits);
393 dev_info(&pf->pdev->dev,
394 " info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
395 vsi->info.sched_reserved, vsi->info.outer_up_table);
396 dev_info(&pf->pdev->dev,
397 " info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
398 vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
399 vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
400 vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
401 vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
402 dev_info(&pf->pdev->dev,
403 " info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
404 vsi->info.qs_handle[0], vsi->info.qs_handle[1],
405 vsi->info.qs_handle[2], vsi->info.qs_handle[3],
406 vsi->info.qs_handle[4], vsi->info.qs_handle[5],
407 vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
408 dev_info(&pf->pdev->dev,
409 " info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
410 vsi->info.stat_counter_idx, vsi->info.sched_id);
411 dev_info(&pf->pdev->dev,
412 " 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",
413 vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
414 vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
415 vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
416 vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
417 vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
418 vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
419 dev_info(&pf->pdev->dev, " idx = %d\n", vsi->idx);
420 dev_info(&pf->pdev->dev,
421 " tc_config: numtc = %d, enabled_tc = 0x%x\n",
422 vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
423 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
424 dev_info(&pf->pdev->dev,
425 " tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
426 i, vsi->tc_config.tc_info[i].qoffset,
427 vsi->tc_config.tc_info[i].qcount,
428 vsi->tc_config.tc_info[i].netdev_tc);
429 }
430 dev_info(&pf->pdev->dev,
431 " bw: bw_limit = %d, bw_max_quanta = %d\n",
432 vsi->bw_limit, vsi->bw_max_quanta);
433 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
434 dev_info(&pf->pdev->dev,
435 " bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
436 i, vsi->bw_ets_share_credits[i],
437 vsi->bw_ets_limit_credits[i],
438 vsi->bw_ets_max_quanta[i]);
439 }
440}
441
442
443
444
445
446static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
447{
448 struct i40e_adminq_ring *ring;
449 struct i40e_hw *hw = &pf->hw;
450 char hdr[32];
451 int i;
452
453 snprintf(hdr, sizeof(hdr), "%s %s: ",
454 dev_driver_string(&pf->pdev->dev),
455 dev_name(&pf->pdev->dev));
456
457
458 dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
459 ring = &(hw->aq.asq);
460 for (i = 0; i < ring->count; i++) {
461 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
462
463 dev_info(&pf->pdev->dev,
464 " at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
465 i, d->flags, d->opcode, d->datalen, d->retval,
466 d->cookie_high, d->cookie_low);
467 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
468 16, 1, d->params.raw, 16, 0);
469 }
470
471 dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
472 ring = &(hw->aq.arq);
473 for (i = 0; i < ring->count; i++) {
474 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
475
476 dev_info(&pf->pdev->dev,
477 " ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
478 i, d->flags, d->opcode, d->datalen, d->retval,
479 d->cookie_high, d->cookie_low);
480 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
481 16, 1, d->params.raw, 16, 0);
482 }
483}
484
485
486
487
488
489
490
491
492
493
494static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
495 struct i40e_pf *pf, bool is_rx_ring)
496{
497 struct i40e_tx_desc *txd;
498 union i40e_rx_desc *rxd;
499 struct i40e_ring *ring;
500 struct i40e_vsi *vsi;
501 int i;
502
503 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
504 if (!vsi) {
505 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
506 return;
507 }
508 if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
509 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
510 return;
511 }
512 if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
513 dev_info(&pf->pdev->dev,
514 "descriptor rings have not been allocated for vsi %d\n",
515 vsi_seid);
516 return;
517 }
518
519 ring = kmemdup(is_rx_ring
520 ? vsi->rx_rings[ring_id] : vsi->tx_rings[ring_id],
521 sizeof(*ring), GFP_KERNEL);
522 if (!ring)
523 return;
524
525 if (cnt == 2) {
526 dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
527 vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
528 for (i = 0; i < ring->count; i++) {
529 if (!is_rx_ring) {
530 txd = I40E_TX_DESC(ring, i);
531 dev_info(&pf->pdev->dev,
532 " d[%03x] = 0x%016llx 0x%016llx\n",
533 i, txd->buffer_addr,
534 txd->cmd_type_offset_bsz);
535 } else {
536 rxd = I40E_RX_DESC(ring, i);
537 dev_info(&pf->pdev->dev,
538 " d[%03x] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
539 i, rxd->read.pkt_addr,
540 rxd->read.hdr_addr,
541 rxd->read.rsvd1, rxd->read.rsvd2);
542 }
543 }
544 } else if (cnt == 3) {
545 if (desc_n >= ring->count || desc_n < 0) {
546 dev_info(&pf->pdev->dev,
547 "descriptor %d not found\n", desc_n);
548 goto out;
549 }
550 if (!is_rx_ring) {
551 txd = I40E_TX_DESC(ring, desc_n);
552 dev_info(&pf->pdev->dev,
553 "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
554 vsi_seid, ring_id, desc_n,
555 txd->buffer_addr, txd->cmd_type_offset_bsz);
556 } else {
557 rxd = I40E_RX_DESC(ring, desc_n);
558 dev_info(&pf->pdev->dev,
559 "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
560 vsi_seid, ring_id, desc_n,
561 rxd->read.pkt_addr, rxd->read.hdr_addr,
562 rxd->read.rsvd1, rxd->read.rsvd2);
563 }
564 } else {
565 dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
566 }
567
568out:
569 kfree(ring);
570}
571
572
573
574
575
576static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
577{
578 int i;
579
580 for (i = 0; i < pf->num_alloc_vsi; i++)
581 if (pf->vsi[i])
582 dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
583 i, pf->vsi[i]->seid);
584}
585
586
587
588
589
590
591static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
592 struct i40e_eth_stats *estats)
593{
594 dev_info(&pf->pdev->dev, " ethstats:\n");
595 dev_info(&pf->pdev->dev,
596 " rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
597 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
598 dev_info(&pf->pdev->dev,
599 " rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
600 estats->rx_broadcast, estats->rx_discards);
601 dev_info(&pf->pdev->dev,
602 " rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
603 estats->rx_unknown_protocol, estats->tx_bytes);
604 dev_info(&pf->pdev->dev,
605 " tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
606 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
607 dev_info(&pf->pdev->dev,
608 " tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
609 estats->tx_discards, estats->tx_errors);
610}
611
612
613
614
615
616
617static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
618{
619 struct i40e_veb *veb;
620
621 veb = i40e_dbg_find_veb(pf, seid);
622 if (!veb) {
623 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
624 return;
625 }
626 dev_info(&pf->pdev->dev,
627 "veb idx=%d,%d stats_ic=%d seid=%d uplink=%d mode=%s\n",
628 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
629 veb->uplink_seid,
630 veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
631 i40e_dbg_dump_eth_stats(pf, &veb->stats);
632}
633
634
635
636
637
638static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
639{
640 struct i40e_veb *veb;
641 int i;
642
643 for (i = 0; i < I40E_MAX_VEB; i++) {
644 veb = pf->veb[i];
645 if (veb)
646 i40e_dbg_dump_veb_seid(pf, veb->seid);
647 }
648}
649
650
651
652
653
654
655static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
656{
657 struct i40e_vf *vf;
658 struct i40e_vsi *vsi;
659
660 if (!pf->num_alloc_vfs) {
661 dev_info(&pf->pdev->dev, "no VFs allocated\n");
662 } else if ((vf_id >= 0) && (vf_id < pf->num_alloc_vfs)) {
663 gmb();
664 vf = &pf->vf[vf_id];
665 vsi = pf->vsi[vf->lan_vsi_idx];
666 dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
667 vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
668 dev_info(&pf->pdev->dev, " num MDD=%lld, invalid msg=%lld, valid msg=%lld\n",
669 vf->num_mdd_events,
670 vf->num_invalid_msgs,
671 vf->num_valid_msgs);
672 } else {
673 dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
674 }
675}
676
677
678
679
680
681static void i40e_dbg_dump_vf_all(struct i40e_pf *pf)
682{
683 int i;
684
685 if (!pf->num_alloc_vfs)
686 dev_info(&pf->pdev->dev, "no VFs enabled!\n");
687 else
688 for (i = 0; i < pf->num_alloc_vfs; i++)
689 i40e_dbg_dump_vf(pf, i);
690}
691
692#define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
693
694
695
696
697
698
699
700static ssize_t i40e_dbg_command_write(struct file *filp,
701 const char __user *buffer,
702 size_t count, loff_t *ppos)
703{
704 struct i40e_pf *pf = filp->private_data;
705 char *cmd_buf, *cmd_buf_tmp;
706 int bytes_not_copied;
707 struct i40e_vsi *vsi;
708 int vsi_seid;
709 int veb_seid;
710 int vf_id;
711 int cnt;
712
713
714 if (*ppos != 0)
715 return 0;
716
717 cmd_buf = kzalloc(count + 1, GFP_KERNEL);
718 if (!cmd_buf)
719 return count;
720 bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
721 if (bytes_not_copied) {
722 kfree(cmd_buf);
723 return -EFAULT;
724 }
725 cmd_buf[count] = '\0';
726
727 cmd_buf_tmp = strchr(cmd_buf, '\n');
728 if (cmd_buf_tmp) {
729 *cmd_buf_tmp = '\0';
730 count = cmd_buf_tmp - cmd_buf + 1;
731 }
732
733 if (strncmp(cmd_buf, "add vsi", 7) == 0) {
734 vsi_seid = -1;
735 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
736 if (cnt == 0) {
737
738 vsi_seid = pf->vsi[pf->lan_vsi]->seid;
739 } else if (vsi_seid < 0) {
740 dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
741 vsi_seid);
742 goto command_write_done;
743 }
744
745
746
747
748 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
749 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
750 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
751 }
752
753 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
754 if (vsi)
755 dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
756 vsi->seid, vsi->uplink_seid);
757 else
758 dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
759
760 } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
761 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
762 if (cnt != 1) {
763 dev_info(&pf->pdev->dev,
764 "del vsi: bad command string, cnt=%d\n",
765 cnt);
766 goto command_write_done;
767 }
768 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
769 if (!vsi) {
770 dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
771 vsi_seid);
772 goto command_write_done;
773 }
774
775 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
776 i40e_vsi_release(vsi);
777
778 } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
779 struct i40e_veb *veb;
780 int uplink_seid, i;
781
782 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
783 if (cnt != 2) {
784 dev_info(&pf->pdev->dev,
785 "add relay: bad command string, cnt=%d\n",
786 cnt);
787 goto command_write_done;
788 } else if (uplink_seid < 0) {
789 dev_info(&pf->pdev->dev,
790 "add relay %d: bad uplink seid\n",
791 uplink_seid);
792 goto command_write_done;
793 }
794
795 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
796 if (!vsi) {
797 dev_info(&pf->pdev->dev,
798 "add relay: VSI %d not found\n", vsi_seid);
799 goto command_write_done;
800 }
801
802 for (i = 0; i < I40E_MAX_VEB; i++)
803 if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
804 break;
805 if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
806 uplink_seid != pf->mac_seid) {
807 dev_info(&pf->pdev->dev,
808 "add relay: relay uplink %d not found\n",
809 uplink_seid);
810 goto command_write_done;
811 }
812
813 veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
814 vsi->tc_config.enabled_tc);
815 if (veb)
816 dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
817 else
818 dev_info(&pf->pdev->dev, "add relay failed\n");
819
820 } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
821 int i;
822 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
823 if (cnt != 1) {
824 dev_info(&pf->pdev->dev,
825 "del relay: bad command string, cnt=%d\n",
826 cnt);
827 goto command_write_done;
828 } else if (veb_seid < 0) {
829 dev_info(&pf->pdev->dev,
830 "del relay %d: bad relay seid\n", veb_seid);
831 goto command_write_done;
832 }
833
834
835 for (i = 0; i < I40E_MAX_VEB; i++)
836 if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
837 break;
838 if (i >= I40E_MAX_VEB) {
839 dev_info(&pf->pdev->dev,
840 "del relay: relay %d not found\n", veb_seid);
841 goto command_write_done;
842 }
843
844 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
845 i40e_veb_release(pf->veb[i]);
846 } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
847 i40e_status ret;
848 u16 vid;
849 unsigned int v;
850
851 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
852 if (cnt != 2) {
853 dev_info(&pf->pdev->dev,
854 "add pvid: bad command string, cnt=%d\n", cnt);
855 goto command_write_done;
856 }
857
858 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
859 if (!vsi) {
860 dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
861 vsi_seid);
862 goto command_write_done;
863 }
864
865 vid = v;
866 ret = i40e_vsi_add_pvid(vsi, vid);
867 if (!ret)
868 dev_info(&pf->pdev->dev,
869 "add pvid: %d added to VSI %d\n",
870 vid, vsi_seid);
871 else
872 dev_info(&pf->pdev->dev,
873 "add pvid: %d to VSI %d failed, ret=%d\n",
874 vid, vsi_seid, ret);
875
876 } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
877
878 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
879 if (cnt != 1) {
880 dev_info(&pf->pdev->dev,
881 "del pvid: bad command string, cnt=%d\n",
882 cnt);
883 goto command_write_done;
884 }
885
886 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
887 if (!vsi) {
888 dev_info(&pf->pdev->dev,
889 "del pvid: VSI %d not found\n", vsi_seid);
890 goto command_write_done;
891 }
892
893 i40e_vsi_remove_pvid(vsi);
894 dev_info(&pf->pdev->dev,
895 "del pvid: removed from VSI %d\n", vsi_seid);
896
897 } else if (strncmp(cmd_buf, "dump", 4) == 0) {
898 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
899 i40e_fetch_switch_configuration(pf, true);
900 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
901 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
902 if (cnt > 0)
903 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
904 else
905 i40e_dbg_dump_vsi_no_seid(pf);
906 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
907 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
908 if (cnt > 0)
909 i40e_dbg_dump_veb_seid(pf, vsi_seid);
910 else
911 i40e_dbg_dump_veb_all(pf);
912 } else if (strncmp(&cmd_buf[5], "vf", 2) == 0) {
913 cnt = sscanf(&cmd_buf[7], "%i", &vf_id);
914 if (cnt > 0)
915 i40e_dbg_dump_vf(pf, vf_id);
916 else
917 i40e_dbg_dump_vf_all(pf);
918 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
919 int ring_id, desc_n;
920 if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
921 cnt = sscanf(&cmd_buf[12], "%i %i %i",
922 &vsi_seid, &ring_id, &desc_n);
923 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
924 desc_n, pf, true);
925 } else if (strncmp(&cmd_buf[10], "tx", 2)
926 == 0) {
927 cnt = sscanf(&cmd_buf[12], "%i %i %i",
928 &vsi_seid, &ring_id, &desc_n);
929 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
930 desc_n, pf, false);
931 } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
932 i40e_dbg_dump_aq_desc(pf);
933 } else {
934 dev_info(&pf->pdev->dev,
935 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
936 dev_info(&pf->pdev->dev,
937 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
938 dev_info(&pf->pdev->dev, "dump desc aq\n");
939 }
940 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
941 dev_info(&pf->pdev->dev,
942 "core reset count: %d\n", pf->corer_count);
943 dev_info(&pf->pdev->dev,
944 "global reset count: %d\n", pf->globr_count);
945 dev_info(&pf->pdev->dev,
946 "emp reset count: %d\n", pf->empr_count);
947 dev_info(&pf->pdev->dev,
948 "pf reset count: %d\n", pf->pfr_count);
949 dev_info(&pf->pdev->dev,
950 "pf tx sluggish count: %d\n",
951 pf->tx_sluggish_count);
952 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
953 struct i40e_aqc_query_port_ets_config_resp *bw_data;
954 struct i40e_dcbx_config *cfg =
955 &pf->hw.local_dcbx_config;
956 struct i40e_dcbx_config *r_cfg =
957 &pf->hw.remote_dcbx_config;
958 int i, ret;
959 u16 switch_id;
960
961 bw_data = kzalloc(sizeof(
962 struct i40e_aqc_query_port_ets_config_resp),
963 GFP_KERNEL);
964 if (!bw_data) {
965 ret = -ENOMEM;
966 goto command_write_done;
967 }
968
969 vsi = pf->vsi[pf->lan_vsi];
970 switch_id =
971 le16_to_cpu(vsi->info.switch_id) &
972 I40E_AQ_VSI_SW_ID_MASK;
973
974 ret = i40e_aq_query_port_ets_config(&pf->hw,
975 switch_id,
976 bw_data, NULL);
977 if (ret) {
978 dev_info(&pf->pdev->dev,
979 "Query Port ETS Config AQ command failed =0x%x\n",
980 pf->hw.aq.asq_last_status);
981 kfree(bw_data);
982 bw_data = NULL;
983 goto command_write_done;
984 }
985 dev_info(&pf->pdev->dev,
986 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
987 bw_data->tc_valid_bits,
988 bw_data->tc_strict_priority_bits,
989 le16_to_cpu(bw_data->tc_bw_max[0]),
990 le16_to_cpu(bw_data->tc_bw_max[1]));
991 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
992 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
993 bw_data->tc_bw_share_credits[i],
994 le16_to_cpu(bw_data->tc_bw_limits[i]));
995 }
996
997 kfree(bw_data);
998 bw_data = NULL;
999
1000 dev_info(&pf->pdev->dev,
1001 "port dcbx_mode=%d\n", cfg->dcbx_mode);
1002 dev_info(&pf->pdev->dev,
1003 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1004 cfg->etscfg.willing, cfg->etscfg.cbs,
1005 cfg->etscfg.maxtcs);
1006 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1007 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1008 i, cfg->etscfg.prioritytable[i],
1009 cfg->etscfg.tcbwtable[i],
1010 cfg->etscfg.tsatable[i]);
1011 }
1012 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1013 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1014 i, cfg->etsrec.prioritytable[i],
1015 cfg->etsrec.tcbwtable[i],
1016 cfg->etsrec.tsatable[i]);
1017 }
1018 dev_info(&pf->pdev->dev,
1019 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1020 cfg->pfc.willing, cfg->pfc.mbc,
1021 cfg->pfc.pfccap, cfg->pfc.pfcenable);
1022 dev_info(&pf->pdev->dev,
1023 "port app_table: num_apps=%d\n", cfg->numapps);
1024 for (i = 0; i < cfg->numapps; i++) {
1025 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1026 i, cfg->app[i].priority,
1027 cfg->app[i].selector,
1028 cfg->app[i].protocolid);
1029 }
1030
1031 dev_info(&pf->pdev->dev,
1032 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1033 r_cfg->etscfg.willing,
1034 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1035 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1036 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1037 i, r_cfg->etscfg.prioritytable[i],
1038 r_cfg->etscfg.tcbwtable[i],
1039 r_cfg->etscfg.tsatable[i]);
1040 }
1041 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1042 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1043 i, r_cfg->etsrec.prioritytable[i],
1044 r_cfg->etsrec.tcbwtable[i],
1045 r_cfg->etsrec.tsatable[i]);
1046 }
1047 dev_info(&pf->pdev->dev,
1048 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1049 r_cfg->pfc.willing,
1050 r_cfg->pfc.mbc,
1051 r_cfg->pfc.pfccap,
1052 r_cfg->pfc.pfcenable);
1053 dev_info(&pf->pdev->dev,
1054 "remote port app_table: num_apps=%d\n",
1055 r_cfg->numapps);
1056 for (i = 0; i < r_cfg->numapps; i++) {
1057 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1058 i, r_cfg->app[i].priority,
1059 r_cfg->app[i].selector,
1060 r_cfg->app[i].protocolid);
1061 }
1062 } else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1063 int cluster_id, table_id;
1064 int index, ret;
1065 u16 buff_len = 4096;
1066 u32 next_index;
1067 u8 next_table;
1068 u8 *buff;
1069 u16 rlen;
1070
1071 cnt = sscanf(&cmd_buf[18], "%i %i %i",
1072 &cluster_id, &table_id, &index);
1073 if (cnt != 3) {
1074 dev_info(&pf->pdev->dev,
1075 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1076 goto command_write_done;
1077 }
1078
1079 dev_info(&pf->pdev->dev,
1080 "AQ debug dump fwdata params %x %x %x %x\n",
1081 cluster_id, table_id, index, buff_len);
1082 buff = kzalloc(buff_len, GFP_KERNEL);
1083 if (!buff)
1084 goto command_write_done;
1085
1086 ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1087 index, buff_len, buff, &rlen,
1088 &next_table, &next_index,
1089 NULL);
1090 if (ret) {
1091 dev_info(&pf->pdev->dev,
1092 "debug dump fwdata AQ Failed %d 0x%x\n",
1093 ret, pf->hw.aq.asq_last_status);
1094 kfree(buff);
1095 buff = NULL;
1096 goto command_write_done;
1097 }
1098 dev_info(&pf->pdev->dev,
1099 "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1100 rlen, next_table, next_index);
1101 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1102 DUMP_PREFIX_OFFSET, 16, 1,
1103 buff, rlen, true);
1104 kfree(buff);
1105 buff = NULL;
1106 } else {
1107 dev_info(&pf->pdev->dev,
1108 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
1109 dev_info(&pf->pdev->dev, "dump switch\n");
1110 dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1111 dev_info(&pf->pdev->dev, "dump reset stats\n");
1112 dev_info(&pf->pdev->dev, "dump port\n");
1113 dev_info(&pf->pdev->dev, "dump vf [vf_id]\n");
1114 dev_info(&pf->pdev->dev,
1115 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1116 }
1117 } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1118 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1119 i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1120
1121 } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1122 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1123 i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1124
1125 } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1126 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1127 i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1128
1129 } else if (strncmp(cmd_buf, "empr", 4) == 0) {
1130 dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
1131 i40e_do_reset_safe(pf, BIT(__I40E_EMP_RESET_REQUESTED));
1132
1133 } else if (strncmp(cmd_buf, "read", 4) == 0) {
1134 u32 address;
1135 u32 value;
1136
1137 cnt = sscanf(&cmd_buf[4], "%i", &address);
1138 if (cnt != 1) {
1139 dev_info(&pf->pdev->dev, "read <reg>\n");
1140 goto command_write_done;
1141 }
1142
1143
1144 if (address > (pf->ioremap_len - sizeof(u32))) {
1145 dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
1146 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1147 goto command_write_done;
1148 }
1149
1150 value = rd32(&pf->hw, address);
1151 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1152 address, value);
1153
1154 } else if (strncmp(cmd_buf, "write", 5) == 0) {
1155 u32 address, value;
1156
1157 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1158 if (cnt != 2) {
1159 dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1160 goto command_write_done;
1161 }
1162
1163
1164 if (address > (pf->ioremap_len - sizeof(u32))) {
1165 dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
1166 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1167 goto command_write_done;
1168 }
1169 wr32(&pf->hw, address, value);
1170 value = rd32(&pf->hw, address);
1171 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1172 address, value);
1173 } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1174 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1175 cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1176 if (cnt == 0) {
1177 int i;
1178
1179 for (i = 0; i < pf->num_alloc_vsi; i++)
1180 i40e_vsi_reset_stats(pf->vsi[i]);
1181 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1182 } else if (cnt == 1) {
1183 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1184 if (!vsi) {
1185 dev_info(&pf->pdev->dev,
1186 "clear_stats vsi: bad vsi %d\n",
1187 vsi_seid);
1188 goto command_write_done;
1189 }
1190 i40e_vsi_reset_stats(vsi);
1191 dev_info(&pf->pdev->dev,
1192 "vsi clear stats called for vsi %d\n",
1193 vsi_seid);
1194 } else {
1195 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1196 }
1197 } else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1198 if (pf->hw.partition_id == 1) {
1199 i40e_pf_reset_stats(pf);
1200 dev_info(&pf->pdev->dev, "port stats cleared\n");
1201 } else {
1202 dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1203 }
1204 } else {
1205 dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1206 }
1207 } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1208 struct i40e_aq_desc *desc;
1209 i40e_status ret;
1210
1211 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1212 if (!desc)
1213 goto command_write_done;
1214 cnt = sscanf(&cmd_buf[11],
1215 "%hi %hi %hi %hi %i %i %i %i %i %i",
1216 &desc->flags,
1217 &desc->opcode, &desc->datalen, &desc->retval,
1218 &desc->cookie_high, &desc->cookie_low,
1219 &desc->params.internal.param0,
1220 &desc->params.internal.param1,
1221 &desc->params.internal.param2,
1222 &desc->params.internal.param3);
1223 if (cnt != 10) {
1224 dev_info(&pf->pdev->dev,
1225 "send aq_cmd: bad command string, cnt=%d\n",
1226 cnt);
1227 kfree(desc);
1228 desc = NULL;
1229 goto command_write_done;
1230 }
1231 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1232 if (!ret) {
1233 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1234 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1235 dev_info(&pf->pdev->dev,
1236 "AQ command send failed Opcode %x AQ Error: %d\n",
1237 desc->opcode, pf->hw.aq.asq_last_status);
1238 } else {
1239 dev_info(&pf->pdev->dev,
1240 "AQ command send failed Opcode %x Status: %d\n",
1241 desc->opcode, ret);
1242 }
1243 dev_info(&pf->pdev->dev,
1244 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1245 desc->flags, desc->opcode, desc->datalen, desc->retval,
1246 desc->cookie_high, desc->cookie_low,
1247 desc->params.internal.param0,
1248 desc->params.internal.param1,
1249 desc->params.internal.param2,
1250 desc->params.internal.param3);
1251 kfree(desc);
1252 desc = NULL;
1253 } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1254 struct i40e_aq_desc *desc;
1255 i40e_status ret;
1256 u16 buffer_len;
1257 u8 *buff;
1258
1259 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1260 if (!desc)
1261 goto command_write_done;
1262 cnt = sscanf(&cmd_buf[20],
1263 "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1264 &desc->flags,
1265 &desc->opcode, &desc->datalen, &desc->retval,
1266 &desc->cookie_high, &desc->cookie_low,
1267 &desc->params.internal.param0,
1268 &desc->params.internal.param1,
1269 &desc->params.internal.param2,
1270 &desc->params.internal.param3,
1271 &buffer_len);
1272 if (cnt != 11) {
1273 dev_info(&pf->pdev->dev,
1274 "send indirect aq_cmd: bad command string, cnt=%d\n",
1275 cnt);
1276 kfree(desc);
1277 desc = NULL;
1278 goto command_write_done;
1279 }
1280
1281 if (buffer_len == 0)
1282 buffer_len = 1280;
1283
1284 buff = kzalloc(buffer_len, GFP_KERNEL);
1285 if (!buff) {
1286 kfree(desc);
1287 desc = NULL;
1288 goto command_write_done;
1289 }
1290 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1291 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1292 buffer_len, NULL);
1293 if (!ret) {
1294 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1295 } else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1296 dev_info(&pf->pdev->dev,
1297 "AQ command send failed Opcode %x AQ Error: %d\n",
1298 desc->opcode, pf->hw.aq.asq_last_status);
1299 } else {
1300 dev_info(&pf->pdev->dev,
1301 "AQ command send failed Opcode %x Status: %d\n",
1302 desc->opcode, ret);
1303 }
1304 dev_info(&pf->pdev->dev,
1305 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1306 desc->flags, desc->opcode, desc->datalen, desc->retval,
1307 desc->cookie_high, desc->cookie_low,
1308 desc->params.internal.param0,
1309 desc->params.internal.param1,
1310 desc->params.internal.param2,
1311 desc->params.internal.param3);
1312 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1313 DUMP_PREFIX_OFFSET, 16, 1,
1314 buff, buffer_len, true);
1315 kfree(buff);
1316 buff = NULL;
1317 kfree(desc);
1318 desc = NULL;
1319 } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1320 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1321 i40e_get_current_fd_count(pf));
1322 } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1323 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1324 int ret;
1325
1326 ret = i40e_aq_stop_lldp(&pf->hw, false, false, NULL);
1327 if (ret) {
1328 dev_info(&pf->pdev->dev,
1329 "Stop LLDP AQ command failed =0x%x\n",
1330 pf->hw.aq.asq_last_status);
1331 goto command_write_done;
1332 }
1333 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1334 pf->hw.mac.addr,
1335 ETH_P_LLDP, 0,
1336 pf->vsi[pf->lan_vsi]->seid,
1337 0, true, NULL, NULL);
1338 if (ret) {
1339 dev_info(&pf->pdev->dev,
1340 "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1341 __func__, pf->hw.aq.asq_last_status);
1342 goto command_write_done;
1343 }
1344#ifdef CONFIG_I40E_DCB
1345 pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1346 DCB_CAP_DCBX_VER_IEEE;
1347#endif
1348 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1349 int ret;
1350
1351 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1352 pf->hw.mac.addr,
1353 ETH_P_LLDP, 0,
1354 pf->vsi[pf->lan_vsi]->seid,
1355 0, false, NULL, NULL);
1356 if (ret) {
1357 dev_info(&pf->pdev->dev,
1358 "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1359 __func__, pf->hw.aq.asq_last_status);
1360
1361 }
1362
1363 ret = i40e_aq_start_lldp(&pf->hw, false, NULL);
1364 if (ret) {
1365 dev_info(&pf->pdev->dev,
1366 "Start LLDP AQ command failed =0x%x\n",
1367 pf->hw.aq.asq_last_status);
1368 goto command_write_done;
1369 }
1370#ifdef CONFIG_I40E_DCB
1371 pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1372 DCB_CAP_DCBX_VER_IEEE;
1373#endif
1374 } else if (strncmp(&cmd_buf[5],
1375 "get local", 9) == 0) {
1376 u16 llen, rlen;
1377 int ret;
1378 u8 *buff;
1379
1380 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1381 if (!buff)
1382 goto command_write_done;
1383
1384 ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1385 I40E_AQ_LLDP_MIB_LOCAL,
1386 buff, I40E_LLDPDU_SIZE,
1387 &llen, &rlen, NULL);
1388 if (ret) {
1389 dev_info(&pf->pdev->dev,
1390 "Get LLDP MIB (local) AQ command failed =0x%x\n",
1391 pf->hw.aq.asq_last_status);
1392 kfree(buff);
1393 buff = NULL;
1394 goto command_write_done;
1395 }
1396 dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1397 print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1398 DUMP_PREFIX_OFFSET, 16, 1,
1399 buff, I40E_LLDPDU_SIZE, true);
1400 kfree(buff);
1401 buff = NULL;
1402 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1403 u16 llen, rlen;
1404 int ret;
1405 u8 *buff;
1406
1407 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1408 if (!buff)
1409 goto command_write_done;
1410
1411 ret = i40e_aq_get_lldp_mib(&pf->hw,
1412 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1413 I40E_AQ_LLDP_MIB_REMOTE,
1414 buff, I40E_LLDPDU_SIZE,
1415 &llen, &rlen, NULL);
1416 if (ret) {
1417 dev_info(&pf->pdev->dev,
1418 "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1419 pf->hw.aq.asq_last_status);
1420 kfree(buff);
1421 buff = NULL;
1422 goto command_write_done;
1423 }
1424 dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1425 print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1426 DUMP_PREFIX_OFFSET, 16, 1,
1427 buff, I40E_LLDPDU_SIZE, true);
1428 kfree(buff);
1429 buff = NULL;
1430 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1431 int ret;
1432
1433 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1434 true, NULL);
1435 if (ret) {
1436 dev_info(&pf->pdev->dev,
1437 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1438 pf->hw.aq.asq_last_status);
1439 goto command_write_done;
1440 }
1441 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1442 int ret;
1443
1444 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1445 false, NULL);
1446 if (ret) {
1447 dev_info(&pf->pdev->dev,
1448 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1449 pf->hw.aq.asq_last_status);
1450 goto command_write_done;
1451 }
1452 }
1453 } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1454 u16 buffer_len, bytes;
1455 u16 module;
1456 u32 offset;
1457 u16 *buff;
1458 int ret;
1459
1460 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1461 &module, &offset, &buffer_len);
1462 if (cnt == 0) {
1463 module = 0;
1464 offset = 0;
1465 buffer_len = 0;
1466 } else if (cnt == 1) {
1467 offset = 0;
1468 buffer_len = 0;
1469 } else if (cnt == 2) {
1470 buffer_len = 0;
1471 } else if (cnt > 3) {
1472 dev_info(&pf->pdev->dev,
1473 "nvm read: bad command string, cnt=%d\n", cnt);
1474 goto command_write_done;
1475 }
1476
1477
1478 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1479
1480 bytes = 2 * buffer_len;
1481
1482
1483 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1484 buff = kzalloc(bytes, GFP_KERNEL);
1485 if (!buff)
1486 goto command_write_done;
1487
1488 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1489 if (ret) {
1490 dev_info(&pf->pdev->dev,
1491 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1492 ret, pf->hw.aq.asq_last_status);
1493 kfree(buff);
1494 goto command_write_done;
1495 }
1496
1497 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1498 bytes, (u8 *)buff, true, NULL);
1499 i40e_release_nvm(&pf->hw);
1500 if (ret) {
1501 dev_info(&pf->pdev->dev,
1502 "Read NVM AQ failed err=%d status=0x%x\n",
1503 ret, pf->hw.aq.asq_last_status);
1504 } else {
1505 dev_info(&pf->pdev->dev,
1506 "Read NVM module=0x%x offset=0x%x words=%d\n",
1507 module, offset, buffer_len);
1508 if (bytes)
1509 print_hex_dump(KERN_INFO, "NVM Dump: ",
1510 DUMP_PREFIX_OFFSET, 16, 2,
1511 buff, bytes, true);
1512 }
1513 kfree(buff);
1514 buff = NULL;
1515 } else {
1516 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1517 dev_info(&pf->pdev->dev, "available commands\n");
1518 dev_info(&pf->pdev->dev, " add vsi [relay_seid]\n");
1519 dev_info(&pf->pdev->dev, " del vsi [vsi_seid]\n");
1520 dev_info(&pf->pdev->dev, " add relay <uplink_seid> <vsi_seid>\n");
1521 dev_info(&pf->pdev->dev, " del relay <relay_seid>\n");
1522 dev_info(&pf->pdev->dev, " add pvid <vsi_seid> <vid>\n");
1523 dev_info(&pf->pdev->dev, " del pvid <vsi_seid>\n");
1524 dev_info(&pf->pdev->dev, " dump switch\n");
1525 dev_info(&pf->pdev->dev, " dump vsi [seid]\n");
1526 dev_info(&pf->pdev->dev, " dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1527 dev_info(&pf->pdev->dev, " dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1528 dev_info(&pf->pdev->dev, " dump desc aq\n");
1529 dev_info(&pf->pdev->dev, " dump reset stats\n");
1530 dev_info(&pf->pdev->dev, " dump debug fwdata <cluster_id> <table_id> <index>\n");
1531 dev_info(&pf->pdev->dev, " read <reg>\n");
1532 dev_info(&pf->pdev->dev, " write <reg> <value>\n");
1533 dev_info(&pf->pdev->dev, " clear_stats vsi [seid]\n");
1534 dev_info(&pf->pdev->dev, " clear_stats port\n");
1535 dev_info(&pf->pdev->dev, " pfr\n");
1536 dev_info(&pf->pdev->dev, " corer\n");
1537 dev_info(&pf->pdev->dev, " globr\n");
1538 dev_info(&pf->pdev->dev, " send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1539 dev_info(&pf->pdev->dev, " send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1540 dev_info(&pf->pdev->dev, " fd current cnt");
1541 dev_info(&pf->pdev->dev, " lldp start\n");
1542 dev_info(&pf->pdev->dev, " lldp stop\n");
1543 dev_info(&pf->pdev->dev, " lldp get local\n");
1544 dev_info(&pf->pdev->dev, " lldp get remote\n");
1545 dev_info(&pf->pdev->dev, " lldp event on\n");
1546 dev_info(&pf->pdev->dev, " lldp event off\n");
1547 dev_info(&pf->pdev->dev, " nvm read [module] [word_offset] [word_count]\n");
1548 }
1549
1550command_write_done:
1551 kfree(cmd_buf);
1552 cmd_buf = NULL;
1553 return count;
1554}
1555
1556static const struct file_operations i40e_dbg_command_fops = {
1557 .owner = THIS_MODULE,
1558 .open = simple_open,
1559 .read = i40e_dbg_command_read,
1560 .write = i40e_dbg_command_write,
1561};
1562
1563
1564
1565
1566
1567
1568static char i40e_dbg_netdev_ops_buf[256] = "";
1569
1570
1571
1572
1573
1574
1575
1576
1577static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1578 size_t count, loff_t *ppos)
1579{
1580 struct i40e_pf *pf = filp->private_data;
1581 int bytes_not_copied;
1582 int buf_size = 256;
1583 char *buf;
1584 int len;
1585
1586
1587 if (*ppos != 0)
1588 return 0;
1589 if (count < buf_size)
1590 return -ENOSPC;
1591
1592 buf = kzalloc(buf_size, GFP_KERNEL);
1593 if (!buf)
1594 return -ENOSPC;
1595
1596 len = snprintf(buf, buf_size, "%s: %s\n",
1597 pf->vsi[pf->lan_vsi]->netdev->name,
1598 i40e_dbg_netdev_ops_buf);
1599
1600 bytes_not_copied = copy_to_user(buffer, buf, len);
1601 kfree(buf);
1602
1603 if (bytes_not_copied)
1604 return -EFAULT;
1605
1606 *ppos = len;
1607 return len;
1608}
1609
1610
1611
1612
1613
1614
1615
1616
1617static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1618 const char __user *buffer,
1619 size_t count, loff_t *ppos)
1620{
1621 struct i40e_pf *pf = filp->private_data;
1622 int bytes_not_copied;
1623 struct i40e_vsi *vsi;
1624 char *buf_tmp;
1625 int vsi_seid;
1626 int i, cnt;
1627
1628
1629 if (*ppos != 0)
1630 return 0;
1631 if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1632 return -ENOSPC;
1633
1634 memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1635 bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1636 buffer, count);
1637 if (bytes_not_copied)
1638 return -EFAULT;
1639 i40e_dbg_netdev_ops_buf[count] = '\0';
1640
1641 buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1642 if (buf_tmp) {
1643 *buf_tmp = '\0';
1644 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1645 }
1646
1647 if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1648 int mtu;
1649
1650 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1651 &vsi_seid, &mtu);
1652 if (cnt != 2) {
1653 dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1654 goto netdev_ops_write_done;
1655 }
1656 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1657 if (!vsi) {
1658 dev_info(&pf->pdev->dev,
1659 "change_mtu: VSI %d not found\n", vsi_seid);
1660 } else if (!vsi->netdev) {
1661 dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
1662 vsi_seid);
1663 } else if (rtnl_trylock()) {
1664 vsi->netdev->netdev_ops->extended.ndo_change_mtu(vsi->netdev,
1665 mtu);
1666 rtnl_unlock();
1667 dev_info(&pf->pdev->dev, "change_mtu called\n");
1668 } else {
1669 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1670 }
1671
1672 } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1673 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1674 if (cnt != 1) {
1675 dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1676 goto netdev_ops_write_done;
1677 }
1678 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1679 if (!vsi) {
1680 dev_info(&pf->pdev->dev,
1681 "set_rx_mode: VSI %d not found\n", vsi_seid);
1682 } else if (!vsi->netdev) {
1683 dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
1684 vsi_seid);
1685 } else if (rtnl_trylock()) {
1686 vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1687 rtnl_unlock();
1688 dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1689 } else {
1690 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1691 }
1692
1693 } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1694 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1695 if (cnt != 1) {
1696 dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1697 goto netdev_ops_write_done;
1698 }
1699 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1700 if (!vsi) {
1701 dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1702 vsi_seid);
1703 } else if (!vsi->netdev) {
1704 dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
1705 vsi_seid);
1706 } else {
1707 for (i = 0; i < vsi->num_q_vectors; i++)
1708 napi_schedule(&vsi->q_vectors[i]->napi);
1709 dev_info(&pf->pdev->dev, "napi called\n");
1710 }
1711 } else {
1712 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
1713 i40e_dbg_netdev_ops_buf);
1714 dev_info(&pf->pdev->dev, "available commands\n");
1715 dev_info(&pf->pdev->dev, " change_mtu <vsi_seid> <mtu>\n");
1716 dev_info(&pf->pdev->dev, " set_rx_mode <vsi_seid>\n");
1717 dev_info(&pf->pdev->dev, " napi <vsi_seid>\n");
1718 }
1719netdev_ops_write_done:
1720 return count;
1721}
1722
1723static const struct file_operations i40e_dbg_netdev_ops_fops = {
1724 .owner = THIS_MODULE,
1725 .open = simple_open,
1726 .read = i40e_dbg_netdev_ops_read,
1727 .write = i40e_dbg_netdev_ops_write,
1728};
1729
1730
1731
1732
1733
1734void i40e_dbg_pf_init(struct i40e_pf *pf)
1735{
1736 const char *name = pci_name(pf->pdev);
1737
1738 pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
1739
1740 debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
1741 &i40e_dbg_command_fops);
1742
1743 debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
1744 &i40e_dbg_netdev_ops_fops);
1745}
1746
1747
1748
1749
1750
1751void i40e_dbg_pf_exit(struct i40e_pf *pf)
1752{
1753 debugfs_remove_recursive(pf->i40e_dbg_pf);
1754 pf->i40e_dbg_pf = NULL;
1755}
1756
1757
1758
1759
1760void i40e_dbg_init(void)
1761{
1762 i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
1763 if (!i40e_dbg_root)
1764 pr_info("init of debugfs failed\n");
1765}
1766
1767
1768
1769
1770void i40e_dbg_exit(void)
1771{
1772 debugfs_remove_recursive(i40e_dbg_root);
1773 i40e_dbg_root = NULL;
1774}
1775
1776#endif
1777
