1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
3
4 #ifdef CONFIG_DEBUG_FS
5
6 #include <linux/fs.h>
7 #include <linux/debugfs.h>
8 #include <linux/if_bridge.h>
9 #include "i40e.h"
10 #include "i40e_virtchnl_pf.h"
11
12 static struct dentry *i40e_dbg_root;
13
14 enum ring_type {
15 RING_TYPE_RX,
16 RING_TYPE_TX,
17 RING_TYPE_XDP
18 };
19
20 /**
21 * i40e_dbg_find_vsi - searches for the vsi with the given seid
22 * @pf: the PF structure to search for the vsi
23 * @seid: seid of the vsi it is searching for
24 **/
i40e_dbg_find_vsi(struct i40e_pf * pf,int seid)25 static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
26 {
27 if (seid < 0) {
28 dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
29
30 return NULL;
31 }
32
33 return i40e_pf_get_vsi_by_seid(pf, seid);
34 }
35
36 /**************************************************************
37 * command
38 * The command entry in debugfs is for giving the driver commands
39 * to be executed - these may be for changing the internal switch
40 * setup, adding or removing filters, or other things. Many of
41 * these will be useful for some forms of unit testing.
42 **************************************************************/
43 static char i40e_dbg_command_buf[256] = "";
44
45 /**
46 * i40e_dbg_command_read - read for command datum
47 * @filp: the opened file
48 * @buffer: where to write the data for the user to read
49 * @count: the size of the user's buffer
50 * @ppos: file position offset
51 **/
i40e_dbg_command_read(struct file * filp,char __user * buffer,size_t count,loff_t * ppos)52 static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
53 size_t count, loff_t *ppos)
54 {
55 struct i40e_pf *pf = filp->private_data;
56 struct i40e_vsi *main_vsi;
57 int bytes_not_copied;
58 int buf_size = 256;
59 char *buf;
60 int len;
61
62 /* don't allow partial reads */
63 if (*ppos != 0)
64 return 0;
65 if (count < buf_size)
66 return -ENOSPC;
67
68 buf = kzalloc(buf_size, GFP_KERNEL);
69 if (!buf)
70 return -ENOSPC;
71
72 main_vsi = i40e_pf_get_main_vsi(pf);
73 len = snprintf(buf, buf_size, "%s: %s\n", main_vsi->netdev->name,
74 i40e_dbg_command_buf);
75
76 bytes_not_copied = copy_to_user(buffer, buf, len);
77 kfree(buf);
78
79 if (bytes_not_copied)
80 return -EFAULT;
81
82 *ppos = len;
83 return len;
84 }
85
86 static char *i40e_filter_state_string[] = {
87 "INVALID",
88 "NEW",
89 "ACTIVE",
90 "FAILED",
91 "REMOVE",
92 };
93
94 /**
95 * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
96 * @pf: the i40e_pf created in command write
97 * @seid: the seid the user put in
98 **/
i40e_dbg_dump_vsi_seid(struct i40e_pf * pf,int seid)99 static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
100 {
101 struct rtnl_link_stats64 *nstat;
102 struct i40e_mac_filter *f;
103 struct i40e_vsi *vsi;
104 int i, bkt;
105
106 vsi = i40e_dbg_find_vsi(pf, seid);
107 if (!vsi) {
108 dev_info(&pf->pdev->dev,
109 "dump %d: seid not found\n", seid);
110 return;
111 }
112 dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
113 if (vsi->netdev) {
114 struct net_device *nd = vsi->netdev;
115
116 dev_info(&pf->pdev->dev, " netdev: name = %s, state = %lu, flags = 0x%08x\n",
117 nd->name, nd->state, nd->flags);
118 dev_info(&pf->pdev->dev, " features = 0x%08lx\n",
119 (unsigned long int)nd->features);
120 dev_info(&pf->pdev->dev, " hw_features = 0x%08lx\n",
121 (unsigned long int)nd->hw_features);
122 dev_info(&pf->pdev->dev, " vlan_features = 0x%08lx\n",
123 (unsigned long int)nd->vlan_features);
124 }
125 dev_info(&pf->pdev->dev,
126 " flags = 0x%08lx, netdev_registered = %i, current_netdev_flags = 0x%04x\n",
127 vsi->flags, vsi->netdev_registered, vsi->current_netdev_flags);
128 for (i = 0; i < BITS_TO_LONGS(__I40E_VSI_STATE_SIZE__); i++)
129 dev_info(&pf->pdev->dev,
130 " state[%d] = %08lx\n",
131 i, vsi->state[i]);
132 if (vsi->type == I40E_VSI_MAIN)
133 dev_info(&pf->pdev->dev, " MAC address: %pM Port MAC: %pM\n",
134 pf->hw.mac.addr,
135 pf->hw.mac.port_addr);
136 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
137 dev_info(&pf->pdev->dev,
138 " mac_filter_hash: %pM vid=%d, state %s\n",
139 f->macaddr, f->vlan,
140 i40e_filter_state_string[f->state]);
141 }
142 dev_info(&pf->pdev->dev, " active_filters %u, promisc_threshold %u, overflow promisc %s\n",
143 vsi->active_filters, vsi->promisc_threshold,
144 (test_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state) ?
145 "ON" : "OFF"));
146 nstat = i40e_get_vsi_stats_struct(vsi);
147 dev_info(&pf->pdev->dev,
148 " net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
149 (unsigned long int)nstat->rx_packets,
150 (unsigned long int)nstat->rx_bytes,
151 (unsigned long int)nstat->rx_errors,
152 (unsigned long int)nstat->rx_dropped);
153 dev_info(&pf->pdev->dev,
154 " net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
155 (unsigned long int)nstat->tx_packets,
156 (unsigned long int)nstat->tx_bytes,
157 (unsigned long int)nstat->tx_errors,
158 (unsigned long int)nstat->tx_dropped);
159 dev_info(&pf->pdev->dev,
160 " net_stats: multicast = %lu, collisions = %lu\n",
161 (unsigned long int)nstat->multicast,
162 (unsigned long int)nstat->collisions);
163 dev_info(&pf->pdev->dev,
164 " net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
165 (unsigned long int)nstat->rx_length_errors,
166 (unsigned long int)nstat->rx_over_errors,
167 (unsigned long int)nstat->rx_crc_errors);
168 dev_info(&pf->pdev->dev,
169 " net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
170 (unsigned long int)nstat->rx_frame_errors,
171 (unsigned long int)nstat->rx_fifo_errors,
172 (unsigned long int)nstat->rx_missed_errors);
173 dev_info(&pf->pdev->dev,
174 " net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
175 (unsigned long int)nstat->tx_aborted_errors,
176 (unsigned long int)nstat->tx_carrier_errors,
177 (unsigned long int)nstat->tx_fifo_errors);
178 dev_info(&pf->pdev->dev,
179 " net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
180 (unsigned long int)nstat->tx_heartbeat_errors,
181 (unsigned long int)nstat->tx_window_errors);
182 dev_info(&pf->pdev->dev,
183 " net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
184 (unsigned long int)nstat->rx_compressed,
185 (unsigned long int)nstat->tx_compressed);
186 dev_info(&pf->pdev->dev,
187 " net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
188 (unsigned long int)vsi->net_stats_offsets.rx_packets,
189 (unsigned long int)vsi->net_stats_offsets.rx_bytes,
190 (unsigned long int)vsi->net_stats_offsets.rx_errors,
191 (unsigned long int)vsi->net_stats_offsets.rx_dropped);
192 dev_info(&pf->pdev->dev,
193 " net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
194 (unsigned long int)vsi->net_stats_offsets.tx_packets,
195 (unsigned long int)vsi->net_stats_offsets.tx_bytes,
196 (unsigned long int)vsi->net_stats_offsets.tx_errors,
197 (unsigned long int)vsi->net_stats_offsets.tx_dropped);
198 dev_info(&pf->pdev->dev,
199 " net_stats_offsets: multicast = %lu, collisions = %lu\n",
200 (unsigned long int)vsi->net_stats_offsets.multicast,
201 (unsigned long int)vsi->net_stats_offsets.collisions);
202 dev_info(&pf->pdev->dev,
203 " net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
204 (unsigned long int)vsi->net_stats_offsets.rx_length_errors,
205 (unsigned long int)vsi->net_stats_offsets.rx_over_errors,
206 (unsigned long int)vsi->net_stats_offsets.rx_crc_errors);
207 dev_info(&pf->pdev->dev,
208 " net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
209 (unsigned long int)vsi->net_stats_offsets.rx_frame_errors,
210 (unsigned long int)vsi->net_stats_offsets.rx_fifo_errors,
211 (unsigned long int)vsi->net_stats_offsets.rx_missed_errors);
212 dev_info(&pf->pdev->dev,
213 " net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
214 (unsigned long int)vsi->net_stats_offsets.tx_aborted_errors,
215 (unsigned long int)vsi->net_stats_offsets.tx_carrier_errors,
216 (unsigned long int)vsi->net_stats_offsets.tx_fifo_errors);
217 dev_info(&pf->pdev->dev,
218 " net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
219 (unsigned long int)vsi->net_stats_offsets.tx_heartbeat_errors,
220 (unsigned long int)vsi->net_stats_offsets.tx_window_errors);
221 dev_info(&pf->pdev->dev,
222 " net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
223 (unsigned long int)vsi->net_stats_offsets.rx_compressed,
224 (unsigned long int)vsi->net_stats_offsets.tx_compressed);
225 dev_info(&pf->pdev->dev,
226 " tx_restart = %llu, tx_busy = %llu, rx_buf_failed = %llu, rx_page_failed = %llu\n",
227 vsi->tx_restart, vsi->tx_busy,
228 vsi->rx_buf_failed, vsi->rx_page_failed);
229 rcu_read_lock();
230 for (i = 0; i < vsi->num_queue_pairs; i++) {
231 struct i40e_ring *rx_ring = READ_ONCE(vsi->rx_rings[i]);
232
233 if (!rx_ring)
234 continue;
235
236 dev_info(&pf->pdev->dev,
237 " rx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
238 i, *rx_ring->state,
239 rx_ring->queue_index,
240 rx_ring->reg_idx);
241 dev_info(&pf->pdev->dev,
242 " rx_rings[%i]: rx_buf_len = %d\n",
243 i, rx_ring->rx_buf_len);
244 dev_info(&pf->pdev->dev,
245 " rx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
246 i,
247 rx_ring->next_to_use,
248 rx_ring->next_to_clean,
249 rx_ring->ring_active);
250 dev_info(&pf->pdev->dev,
251 " rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
252 i, rx_ring->stats.packets,
253 rx_ring->stats.bytes,
254 rx_ring->rx_stats.non_eop_descs);
255 dev_info(&pf->pdev->dev,
256 " rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
257 i,
258 rx_ring->rx_stats.alloc_page_failed,
259 rx_ring->rx_stats.alloc_buff_failed);
260 dev_info(&pf->pdev->dev,
261 " rx_rings[%i]: rx_stats: realloc_count = 0, page_reuse_count = %lld\n",
262 i,
263 rx_ring->rx_stats.page_reuse_count);
264 dev_info(&pf->pdev->dev,
265 " rx_rings[%i]: size = %i\n",
266 i, rx_ring->size);
267 dev_info(&pf->pdev->dev,
268 " rx_rings[%i]: itr_setting = %d (%s)\n",
269 i, rx_ring->itr_setting,
270 ITR_IS_DYNAMIC(rx_ring->itr_setting) ? "dynamic" : "fixed");
271 }
272 for (i = 0; i < vsi->num_queue_pairs; i++) {
273 struct i40e_ring *tx_ring = READ_ONCE(vsi->tx_rings[i]);
274
275 if (!tx_ring)
276 continue;
277
278 dev_info(&pf->pdev->dev,
279 " tx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
280 i, *tx_ring->state,
281 tx_ring->queue_index,
282 tx_ring->reg_idx);
283 dev_info(&pf->pdev->dev,
284 " tx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
285 i,
286 tx_ring->next_to_use,
287 tx_ring->next_to_clean,
288 tx_ring->ring_active);
289 dev_info(&pf->pdev->dev,
290 " tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
291 i, tx_ring->stats.packets,
292 tx_ring->stats.bytes,
293 tx_ring->tx_stats.restart_queue);
294 dev_info(&pf->pdev->dev,
295 " tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld, tx_stopped = %lld\n",
296 i,
297 tx_ring->tx_stats.tx_busy,
298 tx_ring->tx_stats.tx_done_old,
299 tx_ring->tx_stats.tx_stopped);
300 dev_info(&pf->pdev->dev,
301 " tx_rings[%i]: size = %i\n",
302 i, tx_ring->size);
303 dev_info(&pf->pdev->dev,
304 " tx_rings[%i]: DCB tc = %d\n",
305 i, tx_ring->dcb_tc);
306 dev_info(&pf->pdev->dev,
307 " tx_rings[%i]: itr_setting = %d (%s)\n",
308 i, tx_ring->itr_setting,
309 ITR_IS_DYNAMIC(tx_ring->itr_setting) ? "dynamic" : "fixed");
310 }
311 if (i40e_enabled_xdp_vsi(vsi)) {
312 for (i = 0; i < vsi->num_queue_pairs; i++) {
313 struct i40e_ring *xdp_ring = READ_ONCE(vsi->xdp_rings[i]);
314
315 if (!xdp_ring)
316 continue;
317
318 dev_info(&pf->pdev->dev,
319 " xdp_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
320 i, *xdp_ring->state,
321 xdp_ring->queue_index,
322 xdp_ring->reg_idx);
323 dev_info(&pf->pdev->dev,
324 " xdp_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
325 i,
326 xdp_ring->next_to_use,
327 xdp_ring->next_to_clean,
328 xdp_ring->ring_active);
329 dev_info(&pf->pdev->dev,
330 " xdp_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
331 i, xdp_ring->stats.packets,
332 xdp_ring->stats.bytes,
333 xdp_ring->tx_stats.restart_queue);
334 dev_info(&pf->pdev->dev,
335 " xdp_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
336 i,
337 xdp_ring->tx_stats.tx_busy,
338 xdp_ring->tx_stats.tx_done_old);
339 dev_info(&pf->pdev->dev,
340 " xdp_rings[%i]: size = %i\n",
341 i, xdp_ring->size);
342 dev_info(&pf->pdev->dev,
343 " xdp_rings[%i]: DCB tc = %d\n",
344 i, xdp_ring->dcb_tc);
345 dev_info(&pf->pdev->dev,
346 " xdp_rings[%i]: itr_setting = %d (%s)\n",
347 i, xdp_ring->itr_setting,
348 ITR_IS_DYNAMIC(xdp_ring->itr_setting) ?
349 "dynamic" : "fixed");
350 }
351 }
352 rcu_read_unlock();
353 dev_info(&pf->pdev->dev,
354 " work_limit = %d\n",
355 vsi->work_limit);
356 dev_info(&pf->pdev->dev,
357 " max_frame = %d, rx_buf_len = %d dtype = %d\n",
358 vsi->max_frame, vsi->rx_buf_len, 0);
359 dev_info(&pf->pdev->dev,
360 " num_q_vectors = %i, base_vector = %i\n",
361 vsi->num_q_vectors, vsi->base_vector);
362 dev_info(&pf->pdev->dev,
363 " seid = %d, id = %d, uplink_seid = %d\n",
364 vsi->seid, vsi->id, vsi->uplink_seid);
365 dev_info(&pf->pdev->dev,
366 " base_queue = %d, num_queue_pairs = %d, num_tx_desc = %d, num_rx_desc = %d\n",
367 vsi->base_queue, vsi->num_queue_pairs, vsi->num_tx_desc,
368 vsi->num_rx_desc);
369 dev_info(&pf->pdev->dev, " type = %i\n", vsi->type);
370 if (vsi->type == I40E_VSI_SRIOV)
371 dev_info(&pf->pdev->dev, " VF ID = %i\n", vsi->vf_id);
372 dev_info(&pf->pdev->dev,
373 " info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
374 vsi->info.valid_sections, vsi->info.switch_id);
375 dev_info(&pf->pdev->dev,
376 " info: sw_reserved[] = 0x%02x 0x%02x\n",
377 vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
378 dev_info(&pf->pdev->dev,
379 " info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
380 vsi->info.sec_flags, vsi->info.sec_reserved);
381 dev_info(&pf->pdev->dev,
382 " info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
383 vsi->info.pvid, vsi->info.fcoe_pvid,
384 vsi->info.port_vlan_flags);
385 dev_info(&pf->pdev->dev,
386 " info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
387 vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
388 vsi->info.pvlan_reserved[2]);
389 dev_info(&pf->pdev->dev,
390 " info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
391 vsi->info.ingress_table, vsi->info.egress_table);
392 dev_info(&pf->pdev->dev,
393 " info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
394 vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
395 vsi->info.cas_pv_reserved);
396 dev_info(&pf->pdev->dev,
397 " info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
398 vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
399 vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
400 vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
401 vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
402 dev_info(&pf->pdev->dev,
403 " info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
404 vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
405 vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
406 vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
407 vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
408 dev_info(&pf->pdev->dev,
409 " info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
410 vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
411 vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
412 vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
413 vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
414 dev_info(&pf->pdev->dev,
415 " info: queueing_opt_flags = 0x%02x queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
416 vsi->info.queueing_opt_flags,
417 vsi->info.queueing_opt_reserved[0],
418 vsi->info.queueing_opt_reserved[1],
419 vsi->info.queueing_opt_reserved[2]);
420 dev_info(&pf->pdev->dev,
421 " info: up_enable_bits = 0x%02x\n",
422 vsi->info.up_enable_bits);
423 dev_info(&pf->pdev->dev,
424 " info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
425 vsi->info.sched_reserved, vsi->info.outer_up_table);
426 dev_info(&pf->pdev->dev,
427 " info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
428 vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
429 vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
430 vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
431 vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
432 dev_info(&pf->pdev->dev,
433 " info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
434 vsi->info.qs_handle[0], vsi->info.qs_handle[1],
435 vsi->info.qs_handle[2], vsi->info.qs_handle[3],
436 vsi->info.qs_handle[4], vsi->info.qs_handle[5],
437 vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
438 dev_info(&pf->pdev->dev,
439 " info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
440 vsi->info.stat_counter_idx, vsi->info.sched_id);
441 dev_info(&pf->pdev->dev,
442 " 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",
443 vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
444 vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
445 vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
446 vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
447 vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
448 vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
449 dev_info(&pf->pdev->dev, " idx = %d\n", vsi->idx);
450 dev_info(&pf->pdev->dev,
451 " tc_config: numtc = %d, enabled_tc = 0x%x\n",
452 vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
453 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
454 dev_info(&pf->pdev->dev,
455 " tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
456 i, vsi->tc_config.tc_info[i].qoffset,
457 vsi->tc_config.tc_info[i].qcount,
458 vsi->tc_config.tc_info[i].netdev_tc);
459 }
460 dev_info(&pf->pdev->dev,
461 " bw: bw_limit = %d, bw_max_quanta = %d\n",
462 vsi->bw_limit, vsi->bw_max_quanta);
463 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
464 dev_info(&pf->pdev->dev,
465 " bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
466 i, vsi->bw_ets_share_credits[i],
467 vsi->bw_ets_limit_credits[i],
468 vsi->bw_ets_max_quanta[i]);
469 }
470 }
471
472 /**
473 * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
474 * @pf: the i40e_pf created in command write
475 **/
i40e_dbg_dump_aq_desc(struct i40e_pf * pf)476 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
477 {
478 struct i40e_adminq_ring *ring;
479 struct i40e_hw *hw = &pf->hw;
480 char hdr[32];
481 int i;
482
483 snprintf(hdr, sizeof(hdr), "%s %s: ",
484 dev_driver_string(&pf->pdev->dev),
485 dev_name(&pf->pdev->dev));
486
487 /* first the send (command) ring, then the receive (event) ring */
488 dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
489 ring = &(hw->aq.asq);
490 for (i = 0; i < ring->count; i++) {
491 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
492
493 dev_info(&pf->pdev->dev,
494 " at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
495 i, d->flags, d->opcode, d->datalen, d->retval,
496 d->cookie_high, d->cookie_low);
497 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
498 16, 1, d->params.raw, 16, 0);
499 }
500
501 dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
502 ring = &(hw->aq.arq);
503 for (i = 0; i < ring->count; i++) {
504 struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
505
506 dev_info(&pf->pdev->dev,
507 " ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
508 i, d->flags, d->opcode, d->datalen, d->retval,
509 d->cookie_high, d->cookie_low);
510 print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
511 16, 1, d->params.raw, 16, 0);
512 }
513 }
514
515 /**
516 * i40e_dbg_dump_desc - handles dump desc write into command datum
517 * @cnt: number of arguments that the user supplied
518 * @vsi_seid: vsi id entered by user
519 * @ring_id: ring id entered by user
520 * @desc_n: descriptor number entered by user
521 * @pf: the i40e_pf created in command write
522 * @type: enum describing whether ring is RX, TX or XDP
523 **/
i40e_dbg_dump_desc(int cnt,int vsi_seid,int ring_id,int desc_n,struct i40e_pf * pf,enum ring_type type)524 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
525 struct i40e_pf *pf, enum ring_type type)
526 {
527 bool is_rx_ring = type == RING_TYPE_RX;
528 struct i40e_tx_desc *txd;
529 union i40e_rx_desc *rxd;
530 struct i40e_ring *ring;
531 struct i40e_vsi *vsi;
532 int i;
533
534 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
535 if (!vsi) {
536 dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
537 return;
538 }
539 if (vsi->type != I40E_VSI_MAIN &&
540 vsi->type != I40E_VSI_FDIR &&
541 vsi->type != I40E_VSI_VMDQ2) {
542 dev_info(&pf->pdev->dev,
543 "vsi %d type %d descriptor rings not available\n",
544 vsi_seid, vsi->type);
545 return;
546 }
547 if (type == RING_TYPE_XDP && !i40e_enabled_xdp_vsi(vsi)) {
548 dev_info(&pf->pdev->dev, "XDP not enabled on VSI %d\n", vsi_seid);
549 return;
550 }
551 if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
552 dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
553 return;
554 }
555 if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
556 dev_info(&pf->pdev->dev,
557 "descriptor rings have not been allocated for vsi %d\n",
558 vsi_seid);
559 return;
560 }
561
562 switch (type) {
563 case RING_TYPE_RX:
564 ring = kmemdup(vsi->rx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
565 break;
566 case RING_TYPE_TX:
567 ring = kmemdup(vsi->tx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
568 break;
569 case RING_TYPE_XDP:
570 ring = kmemdup(vsi->xdp_rings[ring_id], sizeof(*ring), GFP_KERNEL);
571 break;
572 default:
573 ring = NULL;
574 break;
575 }
576 if (!ring)
577 return;
578
579 if (cnt == 2) {
580 switch (type) {
581 case RING_TYPE_RX:
582 dev_info(&pf->pdev->dev, "VSI = %02i Rx ring = %02i\n", vsi_seid, ring_id);
583 break;
584 case RING_TYPE_TX:
585 dev_info(&pf->pdev->dev, "VSI = %02i Tx ring = %02i\n", vsi_seid, ring_id);
586 break;
587 case RING_TYPE_XDP:
588 dev_info(&pf->pdev->dev, "VSI = %02i XDP ring = %02i\n", vsi_seid, ring_id);
589 break;
590 }
591 for (i = 0; i < ring->count; i++) {
592 if (!is_rx_ring) {
593 txd = I40E_TX_DESC(ring, i);
594 dev_info(&pf->pdev->dev,
595 " d[%03x] = 0x%016llx 0x%016llx\n",
596 i, txd->buffer_addr,
597 txd->cmd_type_offset_bsz);
598 } else {
599 rxd = I40E_RX_DESC(ring, i);
600 dev_info(&pf->pdev->dev,
601 " d[%03x] = 0x%016llx 0x%016llx\n",
602 i, rxd->read.pkt_addr,
603 rxd->read.hdr_addr);
604 }
605 }
606 } else if (cnt == 3) {
607 if (desc_n >= ring->count || desc_n < 0) {
608 dev_info(&pf->pdev->dev,
609 "descriptor %d not found\n", desc_n);
610 goto out;
611 }
612 if (!is_rx_ring) {
613 txd = I40E_TX_DESC(ring, desc_n);
614 dev_info(&pf->pdev->dev,
615 "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
616 vsi_seid, ring_id, desc_n,
617 txd->buffer_addr, txd->cmd_type_offset_bsz);
618 } else {
619 rxd = I40E_RX_DESC(ring, desc_n);
620 dev_info(&pf->pdev->dev,
621 "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
622 vsi_seid, ring_id, desc_n,
623 rxd->read.pkt_addr, rxd->read.hdr_addr);
624 }
625 } else {
626 dev_info(&pf->pdev->dev, "dump desc rx/tx/xdp <vsi_seid> <ring_id> [<desc_n>]\n");
627 }
628
629 out:
630 kfree(ring);
631 }
632
633 /**
634 * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
635 * @pf: the i40e_pf created in command write
636 **/
i40e_dbg_dump_vsi_no_seid(struct i40e_pf * pf)637 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
638 {
639 struct i40e_vsi *vsi;
640 int i;
641
642 i40e_pf_for_each_vsi(pf, i, vsi)
643 dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n", i, vsi->seid);
644 }
645
646 /**
647 * i40e_dbg_dump_eth_stats - handles dump stats write into command datum
648 * @pf: the i40e_pf created in command write
649 * @estats: the eth stats structure to be dumped
650 **/
i40e_dbg_dump_eth_stats(struct i40e_pf * pf,struct i40e_eth_stats * estats)651 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
652 struct i40e_eth_stats *estats)
653 {
654 dev_info(&pf->pdev->dev, " ethstats:\n");
655 dev_info(&pf->pdev->dev,
656 " rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
657 estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
658 dev_info(&pf->pdev->dev,
659 " rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
660 estats->rx_broadcast, estats->rx_discards);
661 dev_info(&pf->pdev->dev,
662 " rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
663 estats->rx_unknown_protocol, estats->tx_bytes);
664 dev_info(&pf->pdev->dev,
665 " tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
666 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
667 dev_info(&pf->pdev->dev,
668 " tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
669 estats->tx_discards, estats->tx_errors);
670 }
671
672 /**
673 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
674 * @pf: the i40e_pf created in command write
675 * @seid: the seid the user put in
676 **/
i40e_dbg_dump_veb_seid(struct i40e_pf * pf,int seid)677 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
678 {
679 struct i40e_veb *veb;
680
681 veb = i40e_pf_get_veb_by_seid(pf, seid);
682 if (!veb) {
683 dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
684 return;
685 }
686 dev_info(&pf->pdev->dev,
687 "veb idx=%d stats_ic=%d seid=%d uplink=%d mode=%s\n",
688 veb->idx, veb->stats_idx, veb->seid, veb->uplink_seid,
689 veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
690 i40e_dbg_dump_eth_stats(pf, &veb->stats);
691 }
692
693 /**
694 * i40e_dbg_dump_veb_all - dumps all known veb's stats
695 * @pf: the i40e_pf created in command write
696 **/
i40e_dbg_dump_veb_all(struct i40e_pf * pf)697 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
698 {
699 struct i40e_veb *veb;
700 int i;
701
702 i40e_pf_for_each_veb(pf, i, veb)
703 i40e_dbg_dump_veb_seid(pf, veb->seid);
704 }
705
706 /**
707 * i40e_dbg_dump_vf - dump VF info
708 * @pf: the i40e_pf created in command write
709 * @vf_id: the vf_id from the user
710 **/
i40e_dbg_dump_vf(struct i40e_pf * pf,int vf_id)711 static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
712 {
713 struct i40e_vf *vf;
714 struct i40e_vsi *vsi;
715
716 if (!pf->num_alloc_vfs) {
717 dev_info(&pf->pdev->dev, "no VFs allocated\n");
718 } else if ((vf_id >= 0) && (vf_id < pf->num_alloc_vfs)) {
719 vf = &pf->vf[vf_id];
720 vsi = pf->vsi[vf->lan_vsi_idx];
721 dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
722 vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
723 dev_info(&pf->pdev->dev, " num MDD=%lld\n",
724 vf->num_mdd_events);
725 } else {
726 dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
727 }
728 }
729
730 /**
731 * i40e_dbg_dump_vf_all - dump VF info for all VFs
732 * @pf: the i40e_pf created in command write
733 **/
i40e_dbg_dump_vf_all(struct i40e_pf * pf)734 static void i40e_dbg_dump_vf_all(struct i40e_pf *pf)
735 {
736 int i;
737
738 if (!pf->num_alloc_vfs)
739 dev_info(&pf->pdev->dev, "no VFs enabled!\n");
740 else
741 for (i = 0; i < pf->num_alloc_vfs; i++)
742 i40e_dbg_dump_vf(pf, i);
743 }
744
745 /**
746 * i40e_dbg_command_write - write into command datum
747 * @filp: the opened file
748 * @buffer: where to find the user's data
749 * @count: the length of the user's data
750 * @ppos: file position offset
751 **/
i40e_dbg_command_write(struct file * filp,const char __user * buffer,size_t count,loff_t * ppos)752 static ssize_t i40e_dbg_command_write(struct file *filp,
753 const char __user *buffer,
754 size_t count, loff_t *ppos)
755 {
756 struct i40e_pf *pf = filp->private_data;
757 char *cmd_buf, *cmd_buf_tmp;
758 int bytes_not_copied;
759 struct i40e_vsi *vsi;
760 int vsi_seid;
761 int veb_seid;
762 int vf_id;
763 int cnt;
764
765 /* don't allow partial writes */
766 if (*ppos != 0)
767 return 0;
768
769 cmd_buf = kzalloc(count + 1, GFP_KERNEL);
770 if (!cmd_buf)
771 return count;
772 bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
773 if (bytes_not_copied) {
774 kfree(cmd_buf);
775 return -EFAULT;
776 }
777 cmd_buf[count] = '\0';
778
779 cmd_buf_tmp = strchr(cmd_buf, '\n');
780 if (cmd_buf_tmp) {
781 *cmd_buf_tmp = '\0';
782 count = cmd_buf_tmp - cmd_buf + 1;
783 }
784
785 if (strncmp(cmd_buf, "add vsi", 7) == 0) {
786 vsi_seid = -1;
787 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
788 if (cnt == 0) {
789 /* default to PF VSI */
790 vsi = i40e_pf_get_main_vsi(pf);
791 vsi_seid = vsi->seid;
792 } else if (vsi_seid < 0) {
793 dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
794 vsi_seid);
795 goto command_write_done;
796 }
797
798 /* By default we are in VEPA mode, if this is the first VF/VMDq
799 * VSI to be added switch to VEB mode.
800 */
801 if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) {
802 set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
803 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
804 }
805
806 vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
807 if (vsi)
808 dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
809 vsi->seid, vsi->uplink_seid);
810 else
811 dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
812
813 } else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
814 cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
815 if (cnt != 1) {
816 dev_info(&pf->pdev->dev,
817 "del vsi: bad command string, cnt=%d\n",
818 cnt);
819 goto command_write_done;
820 }
821 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
822 if (!vsi) {
823 dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
824 vsi_seid);
825 goto command_write_done;
826 }
827
828 dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
829 i40e_vsi_release(vsi);
830
831 } else if (strncmp(cmd_buf, "add relay", 9) == 0) {
832 struct i40e_veb *veb;
833 u8 enabled_tc = 0x1;
834 int uplink_seid;
835
836 cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
837 if (cnt == 0) {
838 uplink_seid = 0;
839 vsi_seid = 0;
840 } else if (cnt != 2) {
841 dev_info(&pf->pdev->dev,
842 "add relay: bad command string, cnt=%d\n",
843 cnt);
844 goto command_write_done;
845 } else if (uplink_seid < 0) {
846 dev_info(&pf->pdev->dev,
847 "add relay %d: bad uplink seid\n",
848 uplink_seid);
849 goto command_write_done;
850 }
851
852 if (uplink_seid != 0 && uplink_seid != pf->mac_seid) {
853 dev_info(&pf->pdev->dev,
854 "add relay: relay uplink %d not found\n",
855 uplink_seid);
856 goto command_write_done;
857 } else if (uplink_seid) {
858 vsi = i40e_pf_get_vsi_by_seid(pf, vsi_seid);
859 if (!vsi) {
860 dev_info(&pf->pdev->dev,
861 "add relay: VSI %d not found\n",
862 vsi_seid);
863 goto command_write_done;
864 }
865 enabled_tc = vsi->tc_config.enabled_tc;
866 } else if (vsi_seid) {
867 dev_info(&pf->pdev->dev,
868 "add relay: VSI must be 0 for floating relay\n");
869 goto command_write_done;
870 }
871
872 veb = i40e_veb_setup(pf, uplink_seid, vsi_seid, enabled_tc);
873 if (veb)
874 dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
875 else
876 dev_info(&pf->pdev->dev, "add relay failed\n");
877
878 } else if (strncmp(cmd_buf, "del relay", 9) == 0) {
879 struct i40e_veb *veb;
880 int i;
881
882 cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
883 if (cnt != 1) {
884 dev_info(&pf->pdev->dev,
885 "del relay: bad command string, cnt=%d\n",
886 cnt);
887 goto command_write_done;
888 } else if (veb_seid < 0) {
889 dev_info(&pf->pdev->dev,
890 "del relay %d: bad relay seid\n", veb_seid);
891 goto command_write_done;
892 }
893
894 /* find the veb */
895 i40e_pf_for_each_veb(pf, i, veb)
896 if (veb->seid == veb_seid)
897 break;
898
899 if (i >= I40E_MAX_VEB) {
900 dev_info(&pf->pdev->dev,
901 "del relay: relay %d not found\n", veb_seid);
902 goto command_write_done;
903 }
904
905 dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
906 i40e_veb_release(veb);
907 } else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
908 unsigned int v;
909 int ret;
910 u16 vid;
911
912 cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
913 if (cnt != 2) {
914 dev_info(&pf->pdev->dev,
915 "add pvid: bad command string, cnt=%d\n", cnt);
916 goto command_write_done;
917 }
918
919 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
920 if (!vsi) {
921 dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
922 vsi_seid);
923 goto command_write_done;
924 }
925
926 vid = v;
927 ret = i40e_vsi_add_pvid(vsi, vid);
928 if (!ret)
929 dev_info(&pf->pdev->dev,
930 "add pvid: %d added to VSI %d\n",
931 vid, vsi_seid);
932 else
933 dev_info(&pf->pdev->dev,
934 "add pvid: %d to VSI %d failed, ret=%d\n",
935 vid, vsi_seid, ret);
936
937 } else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
938
939 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
940 if (cnt != 1) {
941 dev_info(&pf->pdev->dev,
942 "del pvid: bad command string, cnt=%d\n",
943 cnt);
944 goto command_write_done;
945 }
946
947 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
948 if (!vsi) {
949 dev_info(&pf->pdev->dev,
950 "del pvid: VSI %d not found\n", vsi_seid);
951 goto command_write_done;
952 }
953
954 i40e_vsi_remove_pvid(vsi);
955 dev_info(&pf->pdev->dev,
956 "del pvid: removed from VSI %d\n", vsi_seid);
957
958 } else if (strncmp(cmd_buf, "dump", 4) == 0) {
959 if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
960 i40e_fetch_switch_configuration(pf, true);
961 } else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
962 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
963 if (cnt > 0)
964 i40e_dbg_dump_vsi_seid(pf, vsi_seid);
965 else
966 i40e_dbg_dump_vsi_no_seid(pf);
967 } else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
968 cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
969 if (cnt > 0)
970 i40e_dbg_dump_veb_seid(pf, vsi_seid);
971 else
972 i40e_dbg_dump_veb_all(pf);
973 } else if (strncmp(&cmd_buf[5], "vf", 2) == 0) {
974 cnt = sscanf(&cmd_buf[7], "%i", &vf_id);
975 if (cnt > 0)
976 i40e_dbg_dump_vf(pf, vf_id);
977 else
978 i40e_dbg_dump_vf_all(pf);
979 } else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
980 int ring_id, desc_n;
981 if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
982 cnt = sscanf(&cmd_buf[12], "%i %i %i",
983 &vsi_seid, &ring_id, &desc_n);
984 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
985 desc_n, pf, RING_TYPE_RX);
986 } else if (strncmp(&cmd_buf[10], "tx", 2)
987 == 0) {
988 cnt = sscanf(&cmd_buf[12], "%i %i %i",
989 &vsi_seid, &ring_id, &desc_n);
990 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
991 desc_n, pf, RING_TYPE_TX);
992 } else if (strncmp(&cmd_buf[10], "xdp", 3)
993 == 0) {
994 cnt = sscanf(&cmd_buf[13], "%i %i %i",
995 &vsi_seid, &ring_id, &desc_n);
996 i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
997 desc_n, pf, RING_TYPE_XDP);
998 } else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
999 i40e_dbg_dump_aq_desc(pf);
1000 } else {
1001 dev_info(&pf->pdev->dev,
1002 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1003 dev_info(&pf->pdev->dev,
1004 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1005 dev_info(&pf->pdev->dev,
1006 "dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1007 dev_info(&pf->pdev->dev, "dump desc aq\n");
1008 }
1009 } else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1010 dev_info(&pf->pdev->dev,
1011 "core reset count: %d\n", pf->corer_count);
1012 dev_info(&pf->pdev->dev,
1013 "global reset count: %d\n", pf->globr_count);
1014 dev_info(&pf->pdev->dev,
1015 "emp reset count: %d\n", pf->empr_count);
1016 dev_info(&pf->pdev->dev,
1017 "pf reset count: %d\n", pf->pfr_count);
1018 } else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1019 struct i40e_aqc_query_port_ets_config_resp *bw_data;
1020 struct i40e_dcbx_config *cfg =
1021 &pf->hw.local_dcbx_config;
1022 struct i40e_dcbx_config *r_cfg =
1023 &pf->hw.remote_dcbx_config;
1024 int i, ret;
1025 u16 switch_id;
1026
1027 bw_data = kzalloc(sizeof(
1028 struct i40e_aqc_query_port_ets_config_resp),
1029 GFP_KERNEL);
1030 if (!bw_data) {
1031 ret = -ENOMEM;
1032 goto command_write_done;
1033 }
1034
1035 vsi = i40e_pf_get_main_vsi(pf);
1036 switch_id =
1037 le16_to_cpu(vsi->info.switch_id) &
1038 I40E_AQ_VSI_SW_ID_MASK;
1039
1040 ret = i40e_aq_query_port_ets_config(&pf->hw,
1041 switch_id,
1042 bw_data, NULL);
1043 if (ret) {
1044 dev_info(&pf->pdev->dev,
1045 "Query Port ETS Config AQ command failed =0x%x\n",
1046 pf->hw.aq.asq_last_status);
1047 kfree(bw_data);
1048 bw_data = NULL;
1049 goto command_write_done;
1050 }
1051 dev_info(&pf->pdev->dev,
1052 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1053 bw_data->tc_valid_bits,
1054 bw_data->tc_strict_priority_bits,
1055 le16_to_cpu(bw_data->tc_bw_max[0]),
1056 le16_to_cpu(bw_data->tc_bw_max[1]));
1057 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1058 dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1059 bw_data->tc_bw_share_credits[i],
1060 le16_to_cpu(bw_data->tc_bw_limits[i]));
1061 }
1062
1063 kfree(bw_data);
1064 bw_data = NULL;
1065
1066 dev_info(&pf->pdev->dev,
1067 "port dcbx_mode=%d\n", cfg->dcbx_mode);
1068 dev_info(&pf->pdev->dev,
1069 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1070 cfg->etscfg.willing, cfg->etscfg.cbs,
1071 cfg->etscfg.maxtcs);
1072 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1073 dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1074 i, cfg->etscfg.prioritytable[i],
1075 cfg->etscfg.tcbwtable[i],
1076 cfg->etscfg.tsatable[i]);
1077 }
1078 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1079 dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1080 i, cfg->etsrec.prioritytable[i],
1081 cfg->etsrec.tcbwtable[i],
1082 cfg->etsrec.tsatable[i]);
1083 }
1084 dev_info(&pf->pdev->dev,
1085 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1086 cfg->pfc.willing, cfg->pfc.mbc,
1087 cfg->pfc.pfccap, cfg->pfc.pfcenable);
1088 dev_info(&pf->pdev->dev,
1089 "port app_table: num_apps=%d\n", cfg->numapps);
1090 for (i = 0; i < cfg->numapps; i++) {
1091 dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1092 i, cfg->app[i].priority,
1093 cfg->app[i].selector,
1094 cfg->app[i].protocolid);
1095 }
1096 /* Peer TLV DCBX data */
1097 dev_info(&pf->pdev->dev,
1098 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1099 r_cfg->etscfg.willing,
1100 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1101 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1102 dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1103 i, r_cfg->etscfg.prioritytable[i],
1104 r_cfg->etscfg.tcbwtable[i],
1105 r_cfg->etscfg.tsatable[i]);
1106 }
1107 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1108 dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1109 i, r_cfg->etsrec.prioritytable[i],
1110 r_cfg->etsrec.tcbwtable[i],
1111 r_cfg->etsrec.tsatable[i]);
1112 }
1113 dev_info(&pf->pdev->dev,
1114 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1115 r_cfg->pfc.willing,
1116 r_cfg->pfc.mbc,
1117 r_cfg->pfc.pfccap,
1118 r_cfg->pfc.pfcenable);
1119 dev_info(&pf->pdev->dev,
1120 "remote port app_table: num_apps=%d\n",
1121 r_cfg->numapps);
1122 for (i = 0; i < r_cfg->numapps; i++) {
1123 dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1124 i, r_cfg->app[i].priority,
1125 r_cfg->app[i].selector,
1126 r_cfg->app[i].protocolid);
1127 }
1128 } else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1129 int cluster_id, table_id;
1130 int index, ret;
1131 u16 buff_len = 4096;
1132 u32 next_index;
1133 u8 next_table;
1134 u8 *buff;
1135 u16 rlen;
1136
1137 cnt = sscanf(&cmd_buf[18], "%i %i %i",
1138 &cluster_id, &table_id, &index);
1139 if (cnt != 3) {
1140 dev_info(&pf->pdev->dev,
1141 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1142 goto command_write_done;
1143 }
1144
1145 dev_info(&pf->pdev->dev,
1146 "AQ debug dump fwdata params %x %x %x %x\n",
1147 cluster_id, table_id, index, buff_len);
1148 buff = kzalloc(buff_len, GFP_KERNEL);
1149 if (!buff)
1150 goto command_write_done;
1151
1152 ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1153 index, buff_len, buff, &rlen,
1154 &next_table, &next_index,
1155 NULL);
1156 if (ret) {
1157 dev_info(&pf->pdev->dev,
1158 "debug dump fwdata AQ Failed %d 0x%x\n",
1159 ret, pf->hw.aq.asq_last_status);
1160 kfree(buff);
1161 buff = NULL;
1162 goto command_write_done;
1163 }
1164 dev_info(&pf->pdev->dev,
1165 "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1166 rlen, next_table, next_index);
1167 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1168 DUMP_PREFIX_OFFSET, 16, 1,
1169 buff, rlen, true);
1170 kfree(buff);
1171 buff = NULL;
1172 } else {
1173 dev_info(&pf->pdev->dev,
1174 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>], dump desc xdp <vsi_seid> <ring_id> [<desc_n>],\n");
1175 dev_info(&pf->pdev->dev, "dump switch\n");
1176 dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1177 dev_info(&pf->pdev->dev, "dump reset stats\n");
1178 dev_info(&pf->pdev->dev, "dump port\n");
1179 dev_info(&pf->pdev->dev, "dump vf [vf_id]\n");
1180 dev_info(&pf->pdev->dev,
1181 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1182 }
1183 } else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1184 dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1185 i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1186
1187 } else if (strncmp(cmd_buf, "corer", 5) == 0) {
1188 dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1189 i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1190
1191 } else if (strncmp(cmd_buf, "globr", 5) == 0) {
1192 dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1193 i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1194
1195 } else if (strncmp(cmd_buf, "read", 4) == 0) {
1196 u32 address;
1197 u32 value;
1198
1199 cnt = sscanf(&cmd_buf[4], "%i", &address);
1200 if (cnt != 1) {
1201 dev_info(&pf->pdev->dev, "read <reg>\n");
1202 goto command_write_done;
1203 }
1204
1205 /* check the range on address */
1206 if (address > (pf->ioremap_len - sizeof(u32))) {
1207 dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
1208 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1209 goto command_write_done;
1210 }
1211
1212 value = rd32(&pf->hw, address);
1213 dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1214 address, value);
1215
1216 } else if (strncmp(cmd_buf, "write", 5) == 0) {
1217 u32 address, value;
1218
1219 cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1220 if (cnt != 2) {
1221 dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1222 goto command_write_done;
1223 }
1224
1225 /* check the range on address */
1226 if (address > (pf->ioremap_len - sizeof(u32))) {
1227 dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
1228 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1229 goto command_write_done;
1230 }
1231 wr32(&pf->hw, address, value);
1232 value = rd32(&pf->hw, address);
1233 dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1234 address, value);
1235 } else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1236 if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1237 cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1238 if (cnt == 0) {
1239 int i;
1240
1241 i40e_pf_for_each_vsi(pf, i, vsi)
1242 i40e_vsi_reset_stats(vsi);
1243 dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1244 } else if (cnt == 1) {
1245 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1246 if (!vsi) {
1247 dev_info(&pf->pdev->dev,
1248 "clear_stats vsi: bad vsi %d\n",
1249 vsi_seid);
1250 goto command_write_done;
1251 }
1252 i40e_vsi_reset_stats(vsi);
1253 dev_info(&pf->pdev->dev,
1254 "vsi clear stats called for vsi %d\n",
1255 vsi_seid);
1256 } else {
1257 dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1258 }
1259 } else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1260 if (pf->hw.partition_id == 1) {
1261 i40e_pf_reset_stats(pf);
1262 dev_info(&pf->pdev->dev, "port stats cleared\n");
1263 } else {
1264 dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1265 }
1266 } else {
1267 dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1268 }
1269 } else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1270 struct i40e_aq_desc *desc;
1271 int ret;
1272
1273 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1274 if (!desc)
1275 goto command_write_done;
1276 cnt = sscanf(&cmd_buf[11],
1277 "%hi %hi %hi %hi %i %i %i %i %i %i",
1278 &desc->flags,
1279 &desc->opcode, &desc->datalen, &desc->retval,
1280 &desc->cookie_high, &desc->cookie_low,
1281 &desc->params.internal.param0,
1282 &desc->params.internal.param1,
1283 &desc->params.internal.param2,
1284 &desc->params.internal.param3);
1285 if (cnt != 10) {
1286 dev_info(&pf->pdev->dev,
1287 "send aq_cmd: bad command string, cnt=%d\n",
1288 cnt);
1289 kfree(desc);
1290 desc = NULL;
1291 goto command_write_done;
1292 }
1293 ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1294 if (!ret) {
1295 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1296 } else if (ret == -EIO) {
1297 dev_info(&pf->pdev->dev,
1298 "AQ command send failed Opcode %x AQ Error: %d\n",
1299 desc->opcode, pf->hw.aq.asq_last_status);
1300 } else {
1301 dev_info(&pf->pdev->dev,
1302 "AQ command send failed Opcode %x Status: %d\n",
1303 desc->opcode, ret);
1304 }
1305 dev_info(&pf->pdev->dev,
1306 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1307 desc->flags, desc->opcode, desc->datalen, desc->retval,
1308 desc->cookie_high, desc->cookie_low,
1309 desc->params.internal.param0,
1310 desc->params.internal.param1,
1311 desc->params.internal.param2,
1312 desc->params.internal.param3);
1313 kfree(desc);
1314 desc = NULL;
1315 } else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1316 struct i40e_aq_desc *desc;
1317 u16 buffer_len;
1318 u8 *buff;
1319 int ret;
1320
1321 desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1322 if (!desc)
1323 goto command_write_done;
1324 cnt = sscanf(&cmd_buf[20],
1325 "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1326 &desc->flags,
1327 &desc->opcode, &desc->datalen, &desc->retval,
1328 &desc->cookie_high, &desc->cookie_low,
1329 &desc->params.internal.param0,
1330 &desc->params.internal.param1,
1331 &desc->params.internal.param2,
1332 &desc->params.internal.param3,
1333 &buffer_len);
1334 if (cnt != 11) {
1335 dev_info(&pf->pdev->dev,
1336 "send indirect aq_cmd: bad command string, cnt=%d\n",
1337 cnt);
1338 kfree(desc);
1339 desc = NULL;
1340 goto command_write_done;
1341 }
1342 /* Just stub a buffer big enough in case user messed up */
1343 if (buffer_len == 0)
1344 buffer_len = 1280;
1345
1346 buff = kzalloc(buffer_len, GFP_KERNEL);
1347 if (!buff) {
1348 kfree(desc);
1349 desc = NULL;
1350 goto command_write_done;
1351 }
1352 desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1353 ret = i40e_asq_send_command(&pf->hw, desc, buff,
1354 buffer_len, NULL);
1355 if (!ret) {
1356 dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1357 } else if (ret == -EIO) {
1358 dev_info(&pf->pdev->dev,
1359 "AQ command send failed Opcode %x AQ Error: %d\n",
1360 desc->opcode, pf->hw.aq.asq_last_status);
1361 } else {
1362 dev_info(&pf->pdev->dev,
1363 "AQ command send failed Opcode %x Status: %d\n",
1364 desc->opcode, ret);
1365 }
1366 dev_info(&pf->pdev->dev,
1367 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1368 desc->flags, desc->opcode, desc->datalen, desc->retval,
1369 desc->cookie_high, desc->cookie_low,
1370 desc->params.internal.param0,
1371 desc->params.internal.param1,
1372 desc->params.internal.param2,
1373 desc->params.internal.param3);
1374 print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1375 DUMP_PREFIX_OFFSET, 16, 1,
1376 buff, buffer_len, true);
1377 kfree(buff);
1378 buff = NULL;
1379 kfree(desc);
1380 desc = NULL;
1381 } else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1382 dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1383 i40e_get_current_fd_count(pf));
1384 } else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1385 /* Get main VSI */
1386 struct i40e_vsi *main_vsi = i40e_pf_get_main_vsi(pf);
1387
1388 if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1389 int ret;
1390
1391 ret = i40e_aq_stop_lldp(&pf->hw, false, false, NULL);
1392 if (ret) {
1393 dev_info(&pf->pdev->dev,
1394 "Stop LLDP AQ command failed =0x%x\n",
1395 pf->hw.aq.asq_last_status);
1396 goto command_write_done;
1397 }
1398 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1399 pf->hw.mac.addr, ETH_P_LLDP, 0,
1400 main_vsi->seid, 0, true, NULL,
1401 NULL);
1402 if (ret) {
1403 dev_info(&pf->pdev->dev,
1404 "%s: Add Control Packet Filter AQ command failed =0x%x\n",
1405 __func__, pf->hw.aq.asq_last_status);
1406 goto command_write_done;
1407 }
1408 #ifdef CONFIG_I40E_DCB
1409 pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1410 DCB_CAP_DCBX_VER_IEEE;
1411 #endif /* CONFIG_I40E_DCB */
1412 } else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1413 int ret;
1414
1415 ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1416 pf->hw.mac.addr, ETH_P_LLDP, 0,
1417 main_vsi->seid, 0, false, NULL,
1418 NULL);
1419 if (ret) {
1420 dev_info(&pf->pdev->dev,
1421 "%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1422 __func__, pf->hw.aq.asq_last_status);
1423 /* Continue and start FW LLDP anyways */
1424 }
1425
1426 ret = i40e_aq_start_lldp(&pf->hw, false, NULL);
1427 if (ret) {
1428 dev_info(&pf->pdev->dev,
1429 "Start LLDP AQ command failed =0x%x\n",
1430 pf->hw.aq.asq_last_status);
1431 goto command_write_done;
1432 }
1433 #ifdef CONFIG_I40E_DCB
1434 pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1435 DCB_CAP_DCBX_VER_IEEE;
1436 #endif /* CONFIG_I40E_DCB */
1437 } else if (strncmp(&cmd_buf[5],
1438 "get local", 9) == 0) {
1439 u16 llen, rlen;
1440 int ret;
1441 u8 *buff;
1442
1443 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1444 if (!buff)
1445 goto command_write_done;
1446
1447 ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1448 I40E_AQ_LLDP_MIB_LOCAL,
1449 buff, I40E_LLDPDU_SIZE,
1450 &llen, &rlen, NULL);
1451 if (ret) {
1452 dev_info(&pf->pdev->dev,
1453 "Get LLDP MIB (local) AQ command failed =0x%x\n",
1454 pf->hw.aq.asq_last_status);
1455 kfree(buff);
1456 buff = NULL;
1457 goto command_write_done;
1458 }
1459 dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1460 print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1461 DUMP_PREFIX_OFFSET, 16, 1,
1462 buff, I40E_LLDPDU_SIZE, true);
1463 kfree(buff);
1464 buff = NULL;
1465 } else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1466 u16 llen, rlen;
1467 int ret;
1468 u8 *buff;
1469
1470 buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1471 if (!buff)
1472 goto command_write_done;
1473
1474 ret = i40e_aq_get_lldp_mib(&pf->hw,
1475 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1476 I40E_AQ_LLDP_MIB_REMOTE,
1477 buff, I40E_LLDPDU_SIZE,
1478 &llen, &rlen, NULL);
1479 if (ret) {
1480 dev_info(&pf->pdev->dev,
1481 "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1482 pf->hw.aq.asq_last_status);
1483 kfree(buff);
1484 buff = NULL;
1485 goto command_write_done;
1486 }
1487 dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1488 print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1489 DUMP_PREFIX_OFFSET, 16, 1,
1490 buff, I40E_LLDPDU_SIZE, true);
1491 kfree(buff);
1492 buff = NULL;
1493 } else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1494 int ret;
1495
1496 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1497 true, NULL);
1498 if (ret) {
1499 dev_info(&pf->pdev->dev,
1500 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1501 pf->hw.aq.asq_last_status);
1502 goto command_write_done;
1503 }
1504 } else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1505 int ret;
1506
1507 ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1508 false, NULL);
1509 if (ret) {
1510 dev_info(&pf->pdev->dev,
1511 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1512 pf->hw.aq.asq_last_status);
1513 goto command_write_done;
1514 }
1515 }
1516 } else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1517 u16 buffer_len, bytes;
1518 u16 module;
1519 u32 offset;
1520 u16 *buff;
1521 int ret;
1522
1523 cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1524 &module, &offset, &buffer_len);
1525 if (cnt == 0) {
1526 module = 0;
1527 offset = 0;
1528 buffer_len = 0;
1529 } else if (cnt == 1) {
1530 offset = 0;
1531 buffer_len = 0;
1532 } else if (cnt == 2) {
1533 buffer_len = 0;
1534 } else if (cnt > 3) {
1535 dev_info(&pf->pdev->dev,
1536 "nvm read: bad command string, cnt=%d\n", cnt);
1537 goto command_write_done;
1538 }
1539
1540 /* set the max length */
1541 buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1542
1543 bytes = 2 * buffer_len;
1544
1545 /* read at least 1k bytes, no more than 4kB */
1546 bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1547 buff = kzalloc(bytes, GFP_KERNEL);
1548 if (!buff)
1549 goto command_write_done;
1550
1551 ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1552 if (ret) {
1553 dev_info(&pf->pdev->dev,
1554 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1555 ret, pf->hw.aq.asq_last_status);
1556 kfree(buff);
1557 goto command_write_done;
1558 }
1559
1560 ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1561 bytes, (u8 *)buff, true, NULL);
1562 i40e_release_nvm(&pf->hw);
1563 if (ret) {
1564 dev_info(&pf->pdev->dev,
1565 "Read NVM AQ failed err=%d status=0x%x\n",
1566 ret, pf->hw.aq.asq_last_status);
1567 } else {
1568 dev_info(&pf->pdev->dev,
1569 "Read NVM module=0x%x offset=0x%x words=%d\n",
1570 module, offset, buffer_len);
1571 if (bytes)
1572 print_hex_dump(KERN_INFO, "NVM Dump: ",
1573 DUMP_PREFIX_OFFSET, 16, 2,
1574 buff, bytes, true);
1575 }
1576 kfree(buff);
1577 buff = NULL;
1578 } else {
1579 dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1580 dev_info(&pf->pdev->dev, "available commands\n");
1581 dev_info(&pf->pdev->dev, " add vsi [relay_seid]\n");
1582 dev_info(&pf->pdev->dev, " del vsi [vsi_seid]\n");
1583 dev_info(&pf->pdev->dev, " add relay <uplink_seid> <vsi_seid>\n");
1584 dev_info(&pf->pdev->dev, " del relay <relay_seid>\n");
1585 dev_info(&pf->pdev->dev, " add pvid <vsi_seid> <vid>\n");
1586 dev_info(&pf->pdev->dev, " del pvid <vsi_seid>\n");
1587 dev_info(&pf->pdev->dev, " dump switch\n");
1588 dev_info(&pf->pdev->dev, " dump vsi [seid]\n");
1589 dev_info(&pf->pdev->dev, " dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1590 dev_info(&pf->pdev->dev, " dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1591 dev_info(&pf->pdev->dev, " dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1592 dev_info(&pf->pdev->dev, " dump desc aq\n");
1593 dev_info(&pf->pdev->dev, " dump reset stats\n");
1594 dev_info(&pf->pdev->dev, " dump debug fwdata <cluster_id> <table_id> <index>\n");
1595 dev_info(&pf->pdev->dev, " read <reg>\n");
1596 dev_info(&pf->pdev->dev, " write <reg> <value>\n");
1597 dev_info(&pf->pdev->dev, " clear_stats vsi [seid]\n");
1598 dev_info(&pf->pdev->dev, " clear_stats port\n");
1599 dev_info(&pf->pdev->dev, " pfr\n");
1600 dev_info(&pf->pdev->dev, " corer\n");
1601 dev_info(&pf->pdev->dev, " globr\n");
1602 dev_info(&pf->pdev->dev, " send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1603 dev_info(&pf->pdev->dev, " send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1604 dev_info(&pf->pdev->dev, " fd current cnt");
1605 dev_info(&pf->pdev->dev, " lldp start\n");
1606 dev_info(&pf->pdev->dev, " lldp stop\n");
1607 dev_info(&pf->pdev->dev, " lldp get local\n");
1608 dev_info(&pf->pdev->dev, " lldp get remote\n");
1609 dev_info(&pf->pdev->dev, " lldp event on\n");
1610 dev_info(&pf->pdev->dev, " lldp event off\n");
1611 dev_info(&pf->pdev->dev, " nvm read [module] [word_offset] [word_count]\n");
1612 }
1613
1614 command_write_done:
1615 kfree(cmd_buf);
1616 cmd_buf = NULL;
1617 return count;
1618 }
1619
1620 static const struct file_operations i40e_dbg_command_fops = {
1621 .owner = THIS_MODULE,
1622 .open = simple_open,
1623 .read = i40e_dbg_command_read,
1624 .write = i40e_dbg_command_write,
1625 };
1626
1627 /**************************************************************
1628 * netdev_ops
1629 * The netdev_ops entry in debugfs is for giving the driver commands
1630 * to be executed from the netdev operations.
1631 **************************************************************/
1632 static char i40e_dbg_netdev_ops_buf[256] = "";
1633
1634 /**
1635 * i40e_dbg_netdev_ops_read - read for netdev_ops datum
1636 * @filp: the opened file
1637 * @buffer: where to write the data for the user to read
1638 * @count: the size of the user's buffer
1639 * @ppos: file position offset
1640 **/
i40e_dbg_netdev_ops_read(struct file * filp,char __user * buffer,size_t count,loff_t * ppos)1641 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1642 size_t count, loff_t *ppos)
1643 {
1644 struct i40e_pf *pf = filp->private_data;
1645 struct i40e_vsi *main_vsi;
1646 int bytes_not_copied;
1647 int buf_size = 256;
1648 char *buf;
1649 int len;
1650
1651 /* don't allow partal reads */
1652 if (*ppos != 0)
1653 return 0;
1654 if (count < buf_size)
1655 return -ENOSPC;
1656
1657 buf = kzalloc(buf_size, GFP_KERNEL);
1658 if (!buf)
1659 return -ENOSPC;
1660
1661 main_vsi = i40e_pf_get_main_vsi(pf);
1662 len = snprintf(buf, buf_size, "%s: %s\n", main_vsi->netdev->name,
1663 i40e_dbg_netdev_ops_buf);
1664
1665 bytes_not_copied = copy_to_user(buffer, buf, len);
1666 kfree(buf);
1667
1668 if (bytes_not_copied)
1669 return -EFAULT;
1670
1671 *ppos = len;
1672 return len;
1673 }
1674
1675 /**
1676 * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1677 * @filp: the opened file
1678 * @buffer: where to find the user's data
1679 * @count: the length of the user's data
1680 * @ppos: file position offset
1681 **/
i40e_dbg_netdev_ops_write(struct file * filp,const char __user * buffer,size_t count,loff_t * ppos)1682 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1683 const char __user *buffer,
1684 size_t count, loff_t *ppos)
1685 {
1686 struct i40e_pf *pf = filp->private_data;
1687 int bytes_not_copied;
1688 struct i40e_vsi *vsi;
1689 char *buf_tmp;
1690 int vsi_seid;
1691 int i, cnt;
1692
1693 /* don't allow partial writes */
1694 if (*ppos != 0)
1695 return 0;
1696 if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1697 return -ENOSPC;
1698
1699 memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1700 bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1701 buffer, count);
1702 if (bytes_not_copied)
1703 return -EFAULT;
1704 i40e_dbg_netdev_ops_buf[count] = '\0';
1705
1706 buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1707 if (buf_tmp) {
1708 *buf_tmp = '\0';
1709 count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1710 }
1711
1712 if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1713 int mtu;
1714
1715 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1716 &vsi_seid, &mtu);
1717 if (cnt != 2) {
1718 dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1719 goto netdev_ops_write_done;
1720 }
1721 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1722 if (!vsi) {
1723 dev_info(&pf->pdev->dev,
1724 "change_mtu: VSI %d not found\n", vsi_seid);
1725 } else if (!vsi->netdev) {
1726 dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
1727 vsi_seid);
1728 } else if (rtnl_trylock()) {
1729 vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1730 mtu);
1731 rtnl_unlock();
1732 dev_info(&pf->pdev->dev, "change_mtu called\n");
1733 } else {
1734 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1735 }
1736
1737 } else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1738 cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1739 if (cnt != 1) {
1740 dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1741 goto netdev_ops_write_done;
1742 }
1743 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1744 if (!vsi) {
1745 dev_info(&pf->pdev->dev,
1746 "set_rx_mode: VSI %d not found\n", vsi_seid);
1747 } else if (!vsi->netdev) {
1748 dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
1749 vsi_seid);
1750 } else if (rtnl_trylock()) {
1751 vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1752 rtnl_unlock();
1753 dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1754 } else {
1755 dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1756 }
1757
1758 } else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1759 cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1760 if (cnt != 1) {
1761 dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1762 goto netdev_ops_write_done;
1763 }
1764 vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1765 if (!vsi) {
1766 dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1767 vsi_seid);
1768 } else if (!vsi->netdev) {
1769 dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
1770 vsi_seid);
1771 } else {
1772 for (i = 0; i < vsi->num_q_vectors; i++)
1773 napi_schedule(&vsi->q_vectors[i]->napi);
1774 dev_info(&pf->pdev->dev, "napi called\n");
1775 }
1776 } else {
1777 dev_info(&pf->pdev->dev, "unknown command '%s'\n",
1778 i40e_dbg_netdev_ops_buf);
1779 dev_info(&pf->pdev->dev, "available commands\n");
1780 dev_info(&pf->pdev->dev, " change_mtu <vsi_seid> <mtu>\n");
1781 dev_info(&pf->pdev->dev, " set_rx_mode <vsi_seid>\n");
1782 dev_info(&pf->pdev->dev, " napi <vsi_seid>\n");
1783 }
1784 netdev_ops_write_done:
1785 return count;
1786 }
1787
1788 static const struct file_operations i40e_dbg_netdev_ops_fops = {
1789 .owner = THIS_MODULE,
1790 .open = simple_open,
1791 .read = i40e_dbg_netdev_ops_read,
1792 .write = i40e_dbg_netdev_ops_write,
1793 };
1794
1795 /**
1796 * i40e_dbg_pf_init - setup the debugfs directory for the PF
1797 * @pf: the PF that is starting up
1798 **/
i40e_dbg_pf_init(struct i40e_pf * pf)1799 void i40e_dbg_pf_init(struct i40e_pf *pf)
1800 {
1801 const char *name = pci_name(pf->pdev);
1802
1803 pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
1804
1805 debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
1806 &i40e_dbg_command_fops);
1807
1808 debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
1809 &i40e_dbg_netdev_ops_fops);
1810 }
1811
1812 /**
1813 * i40e_dbg_pf_exit - clear out the PF's debugfs entries
1814 * @pf: the PF that is stopping
1815 **/
i40e_dbg_pf_exit(struct i40e_pf * pf)1816 void i40e_dbg_pf_exit(struct i40e_pf *pf)
1817 {
1818 debugfs_remove_recursive(pf->i40e_dbg_pf);
1819 pf->i40e_dbg_pf = NULL;
1820 }
1821
1822 /**
1823 * i40e_dbg_init - start up debugfs for the driver
1824 **/
i40e_dbg_init(void)1825 void i40e_dbg_init(void)
1826 {
1827 i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
1828 if (IS_ERR(i40e_dbg_root))
1829 pr_info("init of debugfs failed\n");
1830 }
1831
1832 /**
1833 * i40e_dbg_exit - clean out the driver's debugfs entries
1834 **/
i40e_dbg_exit(void)1835 void i40e_dbg_exit(void)
1836 {
1837 debugfs_remove_recursive(i40e_dbg_root);
1838 i40e_dbg_root = NULL;
1839 }
1840
1841 #endif /* CONFIG_DEBUG_FS */
1842