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 
9 #include "i40e.h"
10 
11 static struct dentry *i40e_dbg_root;
12 
13 enum ring_type {
14 	RING_TYPE_RX,
15 	RING_TYPE_TX,
16 	RING_TYPE_XDP
17 };
18 
19 /**
20  * i40e_dbg_find_vsi - searches for the vsi with the given seid
21  * @pf: the PF structure to search for the vsi
22  * @seid: seid of the vsi it is searching for
23  **/
24 static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
25 {
26 	int i;
27 
28 	if (seid < 0)
29 		dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
30 	else
31 		for (i = 0; i < pf->num_alloc_vsi; i++)
32 			if (pf->vsi[i] && (pf->vsi[i]->seid == seid))
33 				return pf->vsi[i];
34 
35 	return NULL;
36 }
37 
38 /**
39  * i40e_dbg_find_veb - searches for the veb with the given seid
40  * @pf: the PF structure to search for the veb
41  * @seid: seid of the veb it is searching for
42  **/
43 static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
44 {
45 	int i;
46 
47 	for (i = 0; i < I40E_MAX_VEB; i++)
48 		if (pf->veb[i] && pf->veb[i]->seid == seid)
49 			return pf->veb[i];
50 	return NULL;
51 }
52 
53 /**************************************************************
54  * command
55  * The command entry in debugfs is for giving the driver commands
56  * to be executed - these may be for changing the internal switch
57  * setup, adding or removing filters, or other things.  Many of
58  * these will be useful for some forms of unit testing.
59  **************************************************************/
60 static char i40e_dbg_command_buf[256] = "";
61 
62 /**
63  * i40e_dbg_command_read - read for command datum
64  * @filp: the opened file
65  * @buffer: where to write the data for the user to read
66  * @count: the size of the user's buffer
67  * @ppos: file position offset
68  **/
69 static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
70 				     size_t count, loff_t *ppos)
71 {
72 	struct i40e_pf *pf = filp->private_data;
73 	int bytes_not_copied;
74 	int buf_size = 256;
75 	char *buf;
76 	int len;
77 
78 	/* don't allow partial reads */
79 	if (*ppos != 0)
80 		return 0;
81 	if (count < buf_size)
82 		return -ENOSPC;
83 
84 	buf = kzalloc(buf_size, GFP_KERNEL);
85 	if (!buf)
86 		return -ENOSPC;
87 
88 	len = snprintf(buf, buf_size, "%s: %s\n",
89 		       pf->vsi[pf->lan_vsi]->netdev->name,
90 		       i40e_dbg_command_buf);
91 
92 	bytes_not_copied = copy_to_user(buffer, buf, len);
93 	kfree(buf);
94 
95 	if (bytes_not_copied)
96 		return -EFAULT;
97 
98 	*ppos = len;
99 	return len;
100 }
101 
102 static char *i40e_filter_state_string[] = {
103 	"INVALID",
104 	"NEW",
105 	"ACTIVE",
106 	"FAILED",
107 	"REMOVE",
108 };
109 
110 /**
111  * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
112  * @pf: the i40e_pf created in command write
113  * @seid: the seid the user put in
114  **/
115 static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
116 {
117 	struct rtnl_link_stats64 *nstat;
118 	struct i40e_mac_filter *f;
119 	struct i40e_vsi *vsi;
120 	int i, bkt;
121 
122 	vsi = i40e_dbg_find_vsi(pf, seid);
123 	if (!vsi) {
124 		dev_info(&pf->pdev->dev,
125 			 "dump %d: seid not found\n", seid);
126 		return;
127 	}
128 	dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
129 	if (vsi->netdev) {
130 		struct net_device *nd = vsi->netdev;
131 
132 		dev_info(&pf->pdev->dev, "    netdev: name = %s, state = %lu, flags = 0x%08x\n",
133 			 nd->name, nd->state, nd->flags);
134 		dev_info(&pf->pdev->dev, "        features      = 0x%08lx\n",
135 			 (unsigned long int)nd->features);
136 		dev_info(&pf->pdev->dev, "        hw_features   = 0x%08lx\n",
137 			 (unsigned long int)nd->hw_features);
138 		dev_info(&pf->pdev->dev, "        vlan_features = 0x%08lx\n",
139 			 (unsigned long int)nd->vlan_features);
140 	}
141 	dev_info(&pf->pdev->dev,
142 		 "    flags = 0x%08lx, netdev_registered = %i, current_netdev_flags = 0x%04x\n",
143 		 vsi->flags, vsi->netdev_registered, vsi->current_netdev_flags);
144 	for (i = 0; i < BITS_TO_LONGS(__I40E_VSI_STATE_SIZE__); i++)
145 		dev_info(&pf->pdev->dev,
146 			 "    state[%d] = %08lx\n",
147 			 i, vsi->state[i]);
148 	if (vsi == pf->vsi[pf->lan_vsi])
149 		dev_info(&pf->pdev->dev, "    MAC address: %pM SAN MAC: %pM Port MAC: %pM\n",
150 			 pf->hw.mac.addr,
151 			 pf->hw.mac.san_addr,
152 			 pf->hw.mac.port_addr);
153 	hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
154 		dev_info(&pf->pdev->dev,
155 			 "    mac_filter_hash: %pM vid=%d, state %s\n",
156 			 f->macaddr, f->vlan,
157 			 i40e_filter_state_string[f->state]);
158 	}
159 	dev_info(&pf->pdev->dev, "    active_filters %u, promisc_threshold %u, overflow promisc %s\n",
160 		 vsi->active_filters, vsi->promisc_threshold,
161 		 (test_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state) ?
162 		  "ON" : "OFF"));
163 	nstat = i40e_get_vsi_stats_struct(vsi);
164 	dev_info(&pf->pdev->dev,
165 		 "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
166 		 (unsigned long int)nstat->rx_packets,
167 		 (unsigned long int)nstat->rx_bytes,
168 		 (unsigned long int)nstat->rx_errors,
169 		 (unsigned long int)nstat->rx_dropped);
170 	dev_info(&pf->pdev->dev,
171 		 "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
172 		 (unsigned long int)nstat->tx_packets,
173 		 (unsigned long int)nstat->tx_bytes,
174 		 (unsigned long int)nstat->tx_errors,
175 		 (unsigned long int)nstat->tx_dropped);
176 	dev_info(&pf->pdev->dev,
177 		 "    net_stats: multicast = %lu, collisions = %lu\n",
178 		 (unsigned long int)nstat->multicast,
179 		 (unsigned long int)nstat->collisions);
180 	dev_info(&pf->pdev->dev,
181 		 "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
182 		 (unsigned long int)nstat->rx_length_errors,
183 		 (unsigned long int)nstat->rx_over_errors,
184 		 (unsigned long int)nstat->rx_crc_errors);
185 	dev_info(&pf->pdev->dev,
186 		 "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
187 		 (unsigned long int)nstat->rx_frame_errors,
188 		 (unsigned long int)nstat->rx_fifo_errors,
189 		 (unsigned long int)nstat->rx_missed_errors);
190 	dev_info(&pf->pdev->dev,
191 		 "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
192 		 (unsigned long int)nstat->tx_aborted_errors,
193 		 (unsigned long int)nstat->tx_carrier_errors,
194 		 (unsigned long int)nstat->tx_fifo_errors);
195 	dev_info(&pf->pdev->dev,
196 		 "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
197 		 (unsigned long int)nstat->tx_heartbeat_errors,
198 		 (unsigned long int)nstat->tx_window_errors);
199 	dev_info(&pf->pdev->dev,
200 		 "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
201 		 (unsigned long int)nstat->rx_compressed,
202 		 (unsigned long int)nstat->tx_compressed);
203 	dev_info(&pf->pdev->dev,
204 		 "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
205 		 (unsigned long int)vsi->net_stats_offsets.rx_packets,
206 		 (unsigned long int)vsi->net_stats_offsets.rx_bytes,
207 		 (unsigned long int)vsi->net_stats_offsets.rx_errors,
208 		 (unsigned long int)vsi->net_stats_offsets.rx_dropped);
209 	dev_info(&pf->pdev->dev,
210 		 "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
211 		 (unsigned long int)vsi->net_stats_offsets.tx_packets,
212 		 (unsigned long int)vsi->net_stats_offsets.tx_bytes,
213 		 (unsigned long int)vsi->net_stats_offsets.tx_errors,
214 		 (unsigned long int)vsi->net_stats_offsets.tx_dropped);
215 	dev_info(&pf->pdev->dev,
216 		 "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
217 		 (unsigned long int)vsi->net_stats_offsets.multicast,
218 		 (unsigned long int)vsi->net_stats_offsets.collisions);
219 	dev_info(&pf->pdev->dev,
220 		 "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
221 		 (unsigned long int)vsi->net_stats_offsets.rx_length_errors,
222 		 (unsigned long int)vsi->net_stats_offsets.rx_over_errors,
223 		 (unsigned long int)vsi->net_stats_offsets.rx_crc_errors);
224 	dev_info(&pf->pdev->dev,
225 		 "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
226 		 (unsigned long int)vsi->net_stats_offsets.rx_frame_errors,
227 		 (unsigned long int)vsi->net_stats_offsets.rx_fifo_errors,
228 		 (unsigned long int)vsi->net_stats_offsets.rx_missed_errors);
229 	dev_info(&pf->pdev->dev,
230 		 "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
231 		 (unsigned long int)vsi->net_stats_offsets.tx_aborted_errors,
232 		 (unsigned long int)vsi->net_stats_offsets.tx_carrier_errors,
233 		 (unsigned long int)vsi->net_stats_offsets.tx_fifo_errors);
234 	dev_info(&pf->pdev->dev,
235 		 "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
236 		 (unsigned long int)vsi->net_stats_offsets.tx_heartbeat_errors,
237 		 (unsigned long int)vsi->net_stats_offsets.tx_window_errors);
238 	dev_info(&pf->pdev->dev,
239 		 "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
240 		 (unsigned long int)vsi->net_stats_offsets.rx_compressed,
241 		 (unsigned long int)vsi->net_stats_offsets.tx_compressed);
242 	dev_info(&pf->pdev->dev,
243 		 "    tx_restart = %llu, tx_busy = %llu, rx_buf_failed = %llu, rx_page_failed = %llu\n",
244 		 vsi->tx_restart, vsi->tx_busy,
245 		 vsi->rx_buf_failed, vsi->rx_page_failed);
246 	rcu_read_lock();
247 	for (i = 0; i < vsi->num_queue_pairs; i++) {
248 		struct i40e_ring *rx_ring = READ_ONCE(vsi->rx_rings[i]);
249 
250 		if (!rx_ring)
251 			continue;
252 
253 		dev_info(&pf->pdev->dev,
254 			 "    rx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
255 			 i, *rx_ring->state,
256 			 rx_ring->queue_index,
257 			 rx_ring->reg_idx);
258 		dev_info(&pf->pdev->dev,
259 			 "    rx_rings[%i]: rx_buf_len = %d\n",
260 			 i, rx_ring->rx_buf_len);
261 		dev_info(&pf->pdev->dev,
262 			 "    rx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
263 			 i,
264 			 rx_ring->next_to_use,
265 			 rx_ring->next_to_clean,
266 			 rx_ring->ring_active);
267 		dev_info(&pf->pdev->dev,
268 			 "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
269 			 i, rx_ring->stats.packets,
270 			 rx_ring->stats.bytes,
271 			 rx_ring->rx_stats.non_eop_descs);
272 		dev_info(&pf->pdev->dev,
273 			 "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
274 			 i,
275 			 rx_ring->rx_stats.alloc_page_failed,
276 			 rx_ring->rx_stats.alloc_buff_failed);
277 		dev_info(&pf->pdev->dev,
278 			 "    rx_rings[%i]: rx_stats: realloc_count = 0, page_reuse_count = %lld\n",
279 			 i,
280 			 rx_ring->rx_stats.page_reuse_count);
281 		dev_info(&pf->pdev->dev,
282 			 "    rx_rings[%i]: size = %i\n",
283 			 i, rx_ring->size);
284 		dev_info(&pf->pdev->dev,
285 			 "    rx_rings[%i]: itr_setting = %d (%s)\n",
286 			 i, rx_ring->itr_setting,
287 			 ITR_IS_DYNAMIC(rx_ring->itr_setting) ? "dynamic" : "fixed");
288 	}
289 	for (i = 0; i < vsi->num_queue_pairs; i++) {
290 		struct i40e_ring *tx_ring = READ_ONCE(vsi->tx_rings[i]);
291 
292 		if (!tx_ring)
293 			continue;
294 
295 		dev_info(&pf->pdev->dev,
296 			 "    tx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
297 			 i, *tx_ring->state,
298 			 tx_ring->queue_index,
299 			 tx_ring->reg_idx);
300 		dev_info(&pf->pdev->dev,
301 			 "    tx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
302 			 i,
303 			 tx_ring->next_to_use,
304 			 tx_ring->next_to_clean,
305 			 tx_ring->ring_active);
306 		dev_info(&pf->pdev->dev,
307 			 "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
308 			 i, tx_ring->stats.packets,
309 			 tx_ring->stats.bytes,
310 			 tx_ring->tx_stats.restart_queue);
311 		dev_info(&pf->pdev->dev,
312 			 "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld, tx_stopped = %lld\n",
313 			 i,
314 			 tx_ring->tx_stats.tx_busy,
315 			 tx_ring->tx_stats.tx_done_old,
316 			 tx_ring->tx_stats.tx_stopped);
317 		dev_info(&pf->pdev->dev,
318 			 "    tx_rings[%i]: size = %i\n",
319 			 i, tx_ring->size);
320 		dev_info(&pf->pdev->dev,
321 			 "    tx_rings[%i]: DCB tc = %d\n",
322 			 i, tx_ring->dcb_tc);
323 		dev_info(&pf->pdev->dev,
324 			 "    tx_rings[%i]: itr_setting = %d (%s)\n",
325 			 i, tx_ring->itr_setting,
326 			 ITR_IS_DYNAMIC(tx_ring->itr_setting) ? "dynamic" : "fixed");
327 	}
328 	if (i40e_enabled_xdp_vsi(vsi)) {
329 		for (i = 0; i < vsi->num_queue_pairs; i++) {
330 			struct i40e_ring *xdp_ring = READ_ONCE(vsi->xdp_rings[i]);
331 
332 			if (!xdp_ring)
333 				continue;
334 
335 			dev_info(&pf->pdev->dev,
336 				 "    xdp_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
337 				 i, *xdp_ring->state,
338 				 xdp_ring->queue_index,
339 				 xdp_ring->reg_idx);
340 			dev_info(&pf->pdev->dev,
341 				 "    xdp_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
342 				 i,
343 				 xdp_ring->next_to_use,
344 				 xdp_ring->next_to_clean,
345 				 xdp_ring->ring_active);
346 			dev_info(&pf->pdev->dev,
347 				 "    xdp_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
348 				 i, xdp_ring->stats.packets,
349 				 xdp_ring->stats.bytes,
350 				 xdp_ring->tx_stats.restart_queue);
351 			dev_info(&pf->pdev->dev,
352 				 "    xdp_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
353 				 i,
354 				 xdp_ring->tx_stats.tx_busy,
355 				 xdp_ring->tx_stats.tx_done_old);
356 			dev_info(&pf->pdev->dev,
357 				 "    xdp_rings[%i]: size = %i\n",
358 				 i, xdp_ring->size);
359 			dev_info(&pf->pdev->dev,
360 				 "    xdp_rings[%i]: DCB tc = %d\n",
361 				 i, xdp_ring->dcb_tc);
362 			dev_info(&pf->pdev->dev,
363 				 "    xdp_rings[%i]: itr_setting = %d (%s)\n",
364 				 i, xdp_ring->itr_setting,
365 				 ITR_IS_DYNAMIC(xdp_ring->itr_setting) ?
366 				 "dynamic" : "fixed");
367 		}
368 	}
369 	rcu_read_unlock();
370 	dev_info(&pf->pdev->dev,
371 		 "    work_limit = %d\n",
372 		 vsi->work_limit);
373 	dev_info(&pf->pdev->dev,
374 		 "    max_frame = %d, rx_buf_len = %d dtype = %d\n",
375 		 vsi->max_frame, vsi->rx_buf_len, 0);
376 	dev_info(&pf->pdev->dev,
377 		 "    num_q_vectors = %i, base_vector = %i\n",
378 		 vsi->num_q_vectors, vsi->base_vector);
379 	dev_info(&pf->pdev->dev,
380 		 "    seid = %d, id = %d, uplink_seid = %d\n",
381 		 vsi->seid, vsi->id, vsi->uplink_seid);
382 	dev_info(&pf->pdev->dev,
383 		 "    base_queue = %d, num_queue_pairs = %d, num_tx_desc = %d, num_rx_desc = %d\n",
384 		 vsi->base_queue, vsi->num_queue_pairs, vsi->num_tx_desc,
385 		 vsi->num_rx_desc);
386 	dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
387 	if (vsi->type == I40E_VSI_SRIOV)
388 		dev_info(&pf->pdev->dev, "    VF ID = %i\n", vsi->vf_id);
389 	dev_info(&pf->pdev->dev,
390 		 "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
391 		 vsi->info.valid_sections, vsi->info.switch_id);
392 	dev_info(&pf->pdev->dev,
393 		 "    info: sw_reserved[] = 0x%02x 0x%02x\n",
394 		 vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
395 	dev_info(&pf->pdev->dev,
396 		 "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
397 		 vsi->info.sec_flags, vsi->info.sec_reserved);
398 	dev_info(&pf->pdev->dev,
399 		 "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
400 		 vsi->info.pvid, vsi->info.fcoe_pvid,
401 		 vsi->info.port_vlan_flags);
402 	dev_info(&pf->pdev->dev,
403 		 "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
404 		 vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
405 		 vsi->info.pvlan_reserved[2]);
406 	dev_info(&pf->pdev->dev,
407 		 "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
408 		 vsi->info.ingress_table, vsi->info.egress_table);
409 	dev_info(&pf->pdev->dev,
410 		 "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
411 		 vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
412 		 vsi->info.cas_pv_reserved);
413 	dev_info(&pf->pdev->dev,
414 		 "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
415 		 vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
416 		 vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
417 		 vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
418 		 vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
419 	dev_info(&pf->pdev->dev,
420 		 "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
421 		 vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
422 		 vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
423 		 vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
424 		 vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
425 	dev_info(&pf->pdev->dev,
426 		 "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
427 		 vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
428 		 vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
429 		 vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
430 		 vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
431 	dev_info(&pf->pdev->dev,
432 		 "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
433 		 vsi->info.queueing_opt_flags,
434 		 vsi->info.queueing_opt_reserved[0],
435 		 vsi->info.queueing_opt_reserved[1],
436 		 vsi->info.queueing_opt_reserved[2]);
437 	dev_info(&pf->pdev->dev,
438 		 "    info: up_enable_bits = 0x%02x\n",
439 		 vsi->info.up_enable_bits);
440 	dev_info(&pf->pdev->dev,
441 		 "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
442 		 vsi->info.sched_reserved, vsi->info.outer_up_table);
443 	dev_info(&pf->pdev->dev,
444 		 "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
445 		 vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
446 		 vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
447 		 vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
448 		 vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
449 	dev_info(&pf->pdev->dev,
450 		 "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
451 		 vsi->info.qs_handle[0], vsi->info.qs_handle[1],
452 		 vsi->info.qs_handle[2], vsi->info.qs_handle[3],
453 		 vsi->info.qs_handle[4], vsi->info.qs_handle[5],
454 		 vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
455 	dev_info(&pf->pdev->dev,
456 		 "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
457 		 vsi->info.stat_counter_idx, vsi->info.sched_id);
458 	dev_info(&pf->pdev->dev,
459 		 "    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",
460 		 vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
461 		 vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
462 		 vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
463 		 vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
464 		 vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
465 		 vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
466 	dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
467 	dev_info(&pf->pdev->dev,
468 		 "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
469 		 vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
470 	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
471 		dev_info(&pf->pdev->dev,
472 			 "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
473 			 i, vsi->tc_config.tc_info[i].qoffset,
474 			 vsi->tc_config.tc_info[i].qcount,
475 			 vsi->tc_config.tc_info[i].netdev_tc);
476 	}
477 	dev_info(&pf->pdev->dev,
478 		 "    bw: bw_limit = %d, bw_max_quanta = %d\n",
479 		 vsi->bw_limit, vsi->bw_max_quanta);
480 	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
481 		dev_info(&pf->pdev->dev,
482 			 "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
483 			 i, vsi->bw_ets_share_credits[i],
484 			 vsi->bw_ets_limit_credits[i],
485 			 vsi->bw_ets_max_quanta[i]);
486 	}
487 }
488 
489 /**
490  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
491  * @pf: the i40e_pf created in command write
492  **/
493 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
494 {
495 	struct i40e_adminq_ring *ring;
496 	struct i40e_hw *hw = &pf->hw;
497 	char hdr[32];
498 	int i;
499 
500 	snprintf(hdr, sizeof(hdr), "%s %s:         ",
501 		 dev_driver_string(&pf->pdev->dev),
502 		 dev_name(&pf->pdev->dev));
503 
504 	/* first the send (command) ring, then the receive (event) ring */
505 	dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
506 	ring = &(hw->aq.asq);
507 	for (i = 0; i < ring->count; i++) {
508 		struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
509 
510 		dev_info(&pf->pdev->dev,
511 			 "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
512 			 i, d->flags, d->opcode, d->datalen, d->retval,
513 			 d->cookie_high, d->cookie_low);
514 		print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
515 			       16, 1, d->params.raw, 16, 0);
516 	}
517 
518 	dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
519 	ring = &(hw->aq.arq);
520 	for (i = 0; i < ring->count; i++) {
521 		struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
522 
523 		dev_info(&pf->pdev->dev,
524 			 "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
525 			 i, d->flags, d->opcode, d->datalen, d->retval,
526 			 d->cookie_high, d->cookie_low);
527 		print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
528 			       16, 1, d->params.raw, 16, 0);
529 	}
530 }
531 
532 /**
533  * i40e_dbg_dump_desc - handles dump desc write into command datum
534  * @cnt: number of arguments that the user supplied
535  * @vsi_seid: vsi id entered by user
536  * @ring_id: ring id entered by user
537  * @desc_n: descriptor number entered by user
538  * @pf: the i40e_pf created in command write
539  * @type: enum describing whether ring is RX, TX or XDP
540  **/
541 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
542 			       struct i40e_pf *pf, enum ring_type type)
543 {
544 	bool is_rx_ring = type == RING_TYPE_RX;
545 	struct i40e_tx_desc *txd;
546 	union i40e_rx_desc *rxd;
547 	struct i40e_ring *ring;
548 	struct i40e_vsi *vsi;
549 	int i;
550 
551 	vsi = i40e_dbg_find_vsi(pf, vsi_seid);
552 	if (!vsi) {
553 		dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
554 		return;
555 	}
556 	if (vsi->type != I40E_VSI_MAIN &&
557 	    vsi->type != I40E_VSI_FDIR &&
558 	    vsi->type != I40E_VSI_VMDQ2) {
559 		dev_info(&pf->pdev->dev,
560 			 "vsi %d type %d descriptor rings not available\n",
561 			 vsi_seid, vsi->type);
562 		return;
563 	}
564 	if (type == RING_TYPE_XDP && !i40e_enabled_xdp_vsi(vsi)) {
565 		dev_info(&pf->pdev->dev, "XDP not enabled on VSI %d\n", vsi_seid);
566 		return;
567 	}
568 	if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
569 		dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
570 		return;
571 	}
572 	if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
573 		dev_info(&pf->pdev->dev,
574 			 "descriptor rings have not been allocated for vsi %d\n",
575 			 vsi_seid);
576 		return;
577 	}
578 
579 	switch (type) {
580 	case RING_TYPE_RX:
581 		ring = kmemdup(vsi->rx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
582 		break;
583 	case RING_TYPE_TX:
584 		ring = kmemdup(vsi->tx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
585 		break;
586 	case RING_TYPE_XDP:
587 		ring = kmemdup(vsi->xdp_rings[ring_id], sizeof(*ring), GFP_KERNEL);
588 		break;
589 	default:
590 		ring = NULL;
591 		break;
592 	}
593 	if (!ring)
594 		return;
595 
596 	if (cnt == 2) {
597 		switch (type) {
598 		case RING_TYPE_RX:
599 			dev_info(&pf->pdev->dev, "VSI = %02i Rx ring = %02i\n", vsi_seid, ring_id);
600 			break;
601 		case RING_TYPE_TX:
602 			dev_info(&pf->pdev->dev, "VSI = %02i Tx ring = %02i\n", vsi_seid, ring_id);
603 			break;
604 		case RING_TYPE_XDP:
605 			dev_info(&pf->pdev->dev, "VSI = %02i XDP ring = %02i\n", vsi_seid, ring_id);
606 			break;
607 		}
608 		for (i = 0; i < ring->count; i++) {
609 			if (!is_rx_ring) {
610 				txd = I40E_TX_DESC(ring, i);
611 				dev_info(&pf->pdev->dev,
612 					 "   d[%03x] = 0x%016llx 0x%016llx\n",
613 					 i, txd->buffer_addr,
614 					 txd->cmd_type_offset_bsz);
615 			} else {
616 				rxd = I40E_RX_DESC(ring, i);
617 				dev_info(&pf->pdev->dev,
618 					 "   d[%03x] = 0x%016llx 0x%016llx\n",
619 					 i, rxd->read.pkt_addr,
620 					 rxd->read.hdr_addr);
621 			}
622 		}
623 	} else if (cnt == 3) {
624 		if (desc_n >= ring->count || desc_n < 0) {
625 			dev_info(&pf->pdev->dev,
626 				 "descriptor %d not found\n", desc_n);
627 			goto out;
628 		}
629 		if (!is_rx_ring) {
630 			txd = I40E_TX_DESC(ring, desc_n);
631 			dev_info(&pf->pdev->dev,
632 				 "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
633 				 vsi_seid, ring_id, desc_n,
634 				 txd->buffer_addr, txd->cmd_type_offset_bsz);
635 		} else {
636 			rxd = I40E_RX_DESC(ring, desc_n);
637 			dev_info(&pf->pdev->dev,
638 				 "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
639 				 vsi_seid, ring_id, desc_n,
640 				 rxd->read.pkt_addr, rxd->read.hdr_addr);
641 		}
642 	} else {
643 		dev_info(&pf->pdev->dev, "dump desc rx/tx/xdp <vsi_seid> <ring_id> [<desc_n>]\n");
644 	}
645 
646 out:
647 	kfree(ring);
648 }
649 
650 /**
651  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
652  * @pf: the i40e_pf created in command write
653  **/
654 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
655 {
656 	int i;
657 
658 	for (i = 0; i < pf->num_alloc_vsi; i++)
659 		if (pf->vsi[i])
660 			dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
661 				 i, pf->vsi[i]->seid);
662 }
663 
664 /**
665  * i40e_dbg_dump_eth_stats - handles dump stats write into command datum
666  * @pf: the i40e_pf created in command write
667  * @estats: the eth stats structure to be dumped
668  **/
669 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
670 				    struct i40e_eth_stats *estats)
671 {
672 	dev_info(&pf->pdev->dev, "  ethstats:\n");
673 	dev_info(&pf->pdev->dev,
674 		 "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
675 		estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
676 	dev_info(&pf->pdev->dev,
677 		 "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
678 		 estats->rx_broadcast, estats->rx_discards);
679 	dev_info(&pf->pdev->dev,
680 		 "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
681 		 estats->rx_unknown_protocol, estats->tx_bytes);
682 	dev_info(&pf->pdev->dev,
683 		 "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
684 		 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
685 	dev_info(&pf->pdev->dev,
686 		 "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
687 		 estats->tx_discards, estats->tx_errors);
688 }
689 
690 /**
691  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
692  * @pf: the i40e_pf created in command write
693  * @seid: the seid the user put in
694  **/
695 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
696 {
697 	struct i40e_veb *veb;
698 
699 	veb = i40e_dbg_find_veb(pf, seid);
700 	if (!veb) {
701 		dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
702 		return;
703 	}
704 	dev_info(&pf->pdev->dev,
705 		 "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d mode=%s\n",
706 		 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
707 		 veb->uplink_seid,
708 		 veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
709 	i40e_dbg_dump_eth_stats(pf, &veb->stats);
710 }
711 
712 /**
713  * i40e_dbg_dump_veb_all - dumps all known veb's stats
714  * @pf: the i40e_pf created in command write
715  **/
716 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
717 {
718 	struct i40e_veb *veb;
719 	int i;
720 
721 	for (i = 0; i < I40E_MAX_VEB; i++) {
722 		veb = pf->veb[i];
723 		if (veb)
724 			i40e_dbg_dump_veb_seid(pf, veb->seid);
725 	}
726 }
727 
728 /**
729  * i40e_dbg_dump_vf - dump VF info
730  * @pf: the i40e_pf created in command write
731  * @vf_id: the vf_id from the user
732  **/
733 static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
734 {
735 	struct i40e_vf *vf;
736 	struct i40e_vsi *vsi;
737 
738 	if (!pf->num_alloc_vfs) {
739 		dev_info(&pf->pdev->dev, "no VFs allocated\n");
740 	} else if ((vf_id >= 0) && (vf_id < pf->num_alloc_vfs)) {
741 		vf = &pf->vf[vf_id];
742 		vsi = pf->vsi[vf->lan_vsi_idx];
743 		dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
744 			 vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
745 		dev_info(&pf->pdev->dev, "       num MDD=%lld\n",
746 			 vf->num_mdd_events);
747 	} else {
748 		dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
749 	}
750 }
751 
752 /**
753  * i40e_dbg_dump_vf_all - dump VF info for all VFs
754  * @pf: the i40e_pf created in command write
755  **/
756 static void i40e_dbg_dump_vf_all(struct i40e_pf *pf)
757 {
758 	int i;
759 
760 	if (!pf->num_alloc_vfs)
761 		dev_info(&pf->pdev->dev, "no VFs enabled!\n");
762 	else
763 		for (i = 0; i < pf->num_alloc_vfs; i++)
764 			i40e_dbg_dump_vf(pf, i);
765 }
766 
767 /**
768  * i40e_dbg_command_write - write into command datum
769  * @filp: the opened file
770  * @buffer: where to find the user's data
771  * @count: the length of the user's data
772  * @ppos: file position offset
773  **/
774 static ssize_t i40e_dbg_command_write(struct file *filp,
775 				      const char __user *buffer,
776 				      size_t count, loff_t *ppos)
777 {
778 	struct i40e_pf *pf = filp->private_data;
779 	char *cmd_buf, *cmd_buf_tmp;
780 	int bytes_not_copied;
781 	struct i40e_vsi *vsi;
782 	int vsi_seid;
783 	int veb_seid;
784 	int vf_id;
785 	int cnt;
786 
787 	/* don't allow partial writes */
788 	if (*ppos != 0)
789 		return 0;
790 
791 	cmd_buf = kzalloc(count + 1, GFP_KERNEL);
792 	if (!cmd_buf)
793 		return count;
794 	bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
795 	if (bytes_not_copied) {
796 		kfree(cmd_buf);
797 		return -EFAULT;
798 	}
799 	cmd_buf[count] = '\0';
800 
801 	cmd_buf_tmp = strchr(cmd_buf, '\n');
802 	if (cmd_buf_tmp) {
803 		*cmd_buf_tmp = '\0';
804 		count = cmd_buf_tmp - cmd_buf + 1;
805 	}
806 
807 	if (strncmp(cmd_buf, "add vsi", 7) == 0) {
808 		vsi_seid = -1;
809 		cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
810 		if (cnt == 0) {
811 			/* default to PF VSI */
812 			vsi_seid = pf->vsi[pf->lan_vsi]->seid;
813 		} else if (vsi_seid < 0) {
814 			dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
815 				 vsi_seid);
816 			goto command_write_done;
817 		}
818 
819 		/* By default we are in VEPA mode, if this is the first VF/VMDq
820 		 * VSI to be added switch to VEB mode.
821 		 */
822 		if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
823 			pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
824 			i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
825 		}
826 
827 		vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
828 		if (vsi)
829 			dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
830 				 vsi->seid, vsi->uplink_seid);
831 		else
832 			dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
833 
834 	} else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
835 		cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
836 		if (cnt != 1) {
837 			dev_info(&pf->pdev->dev,
838 				 "del vsi: bad command string, cnt=%d\n",
839 				 cnt);
840 			goto command_write_done;
841 		}
842 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
843 		if (!vsi) {
844 			dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
845 				 vsi_seid);
846 			goto command_write_done;
847 		}
848 
849 		dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
850 		i40e_vsi_release(vsi);
851 
852 	} else if (strncmp(cmd_buf, "add relay", 9) == 0) {
853 		struct i40e_veb *veb;
854 		int uplink_seid, i;
855 
856 		cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
857 		if (cnt != 2) {
858 			dev_info(&pf->pdev->dev,
859 				 "add relay: bad command string, cnt=%d\n",
860 				 cnt);
861 			goto command_write_done;
862 		} else if (uplink_seid < 0) {
863 			dev_info(&pf->pdev->dev,
864 				 "add relay %d: bad uplink seid\n",
865 				 uplink_seid);
866 			goto command_write_done;
867 		}
868 
869 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
870 		if (!vsi) {
871 			dev_info(&pf->pdev->dev,
872 				 "add relay: VSI %d not found\n", vsi_seid);
873 			goto command_write_done;
874 		}
875 
876 		for (i = 0; i < I40E_MAX_VEB; i++)
877 			if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
878 				break;
879 		if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
880 		    uplink_seid != pf->mac_seid) {
881 			dev_info(&pf->pdev->dev,
882 				 "add relay: relay uplink %d not found\n",
883 				 uplink_seid);
884 			goto command_write_done;
885 		}
886 
887 		veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
888 				     vsi->tc_config.enabled_tc);
889 		if (veb)
890 			dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
891 		else
892 			dev_info(&pf->pdev->dev, "add relay failed\n");
893 
894 	} else if (strncmp(cmd_buf, "del relay", 9) == 0) {
895 		int i;
896 		cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
897 		if (cnt != 1) {
898 			dev_info(&pf->pdev->dev,
899 				 "del relay: bad command string, cnt=%d\n",
900 				 cnt);
901 			goto command_write_done;
902 		} else if (veb_seid < 0) {
903 			dev_info(&pf->pdev->dev,
904 				 "del relay %d: bad relay seid\n", veb_seid);
905 			goto command_write_done;
906 		}
907 
908 		/* find the veb */
909 		for (i = 0; i < I40E_MAX_VEB; i++)
910 			if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
911 				break;
912 		if (i >= I40E_MAX_VEB) {
913 			dev_info(&pf->pdev->dev,
914 				 "del relay: relay %d not found\n", veb_seid);
915 			goto command_write_done;
916 		}
917 
918 		dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
919 		i40e_veb_release(pf->veb[i]);
920 	} else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
921 		unsigned int v;
922 		int ret;
923 		u16 vid;
924 
925 		cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
926 		if (cnt != 2) {
927 			dev_info(&pf->pdev->dev,
928 				 "add pvid: bad command string, cnt=%d\n", cnt);
929 			goto command_write_done;
930 		}
931 
932 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
933 		if (!vsi) {
934 			dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
935 				 vsi_seid);
936 			goto command_write_done;
937 		}
938 
939 		vid = v;
940 		ret = i40e_vsi_add_pvid(vsi, vid);
941 		if (!ret)
942 			dev_info(&pf->pdev->dev,
943 				 "add pvid: %d added to VSI %d\n",
944 				 vid, vsi_seid);
945 		else
946 			dev_info(&pf->pdev->dev,
947 				 "add pvid: %d to VSI %d failed, ret=%d\n",
948 				 vid, vsi_seid, ret);
949 
950 	} else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
951 
952 		cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
953 		if (cnt != 1) {
954 			dev_info(&pf->pdev->dev,
955 				 "del pvid: bad command string, cnt=%d\n",
956 				 cnt);
957 			goto command_write_done;
958 		}
959 
960 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
961 		if (!vsi) {
962 			dev_info(&pf->pdev->dev,
963 				 "del pvid: VSI %d not found\n", vsi_seid);
964 			goto command_write_done;
965 		}
966 
967 		i40e_vsi_remove_pvid(vsi);
968 		dev_info(&pf->pdev->dev,
969 			 "del pvid: removed from VSI %d\n", vsi_seid);
970 
971 	} else if (strncmp(cmd_buf, "dump", 4) == 0) {
972 		if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
973 			i40e_fetch_switch_configuration(pf, true);
974 		} else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
975 			cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
976 			if (cnt > 0)
977 				i40e_dbg_dump_vsi_seid(pf, vsi_seid);
978 			else
979 				i40e_dbg_dump_vsi_no_seid(pf);
980 		} else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
981 			cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
982 			if (cnt > 0)
983 				i40e_dbg_dump_veb_seid(pf, vsi_seid);
984 			else
985 				i40e_dbg_dump_veb_all(pf);
986 		} else if (strncmp(&cmd_buf[5], "vf", 2) == 0) {
987 			cnt = sscanf(&cmd_buf[7], "%i", &vf_id);
988 			if (cnt > 0)
989 				i40e_dbg_dump_vf(pf, vf_id);
990 			else
991 				i40e_dbg_dump_vf_all(pf);
992 		} else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
993 			int ring_id, desc_n;
994 			if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
995 				cnt = sscanf(&cmd_buf[12], "%i %i %i",
996 					     &vsi_seid, &ring_id, &desc_n);
997 				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
998 						   desc_n, pf, RING_TYPE_RX);
999 			} else if (strncmp(&cmd_buf[10], "tx", 2)
1000 					== 0) {
1001 				cnt = sscanf(&cmd_buf[12], "%i %i %i",
1002 					     &vsi_seid, &ring_id, &desc_n);
1003 				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1004 						   desc_n, pf, RING_TYPE_TX);
1005 			} else if (strncmp(&cmd_buf[10], "xdp", 3)
1006 					== 0) {
1007 				cnt = sscanf(&cmd_buf[13], "%i %i %i",
1008 					     &vsi_seid, &ring_id, &desc_n);
1009 				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1010 						   desc_n, pf, RING_TYPE_XDP);
1011 			} else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1012 				i40e_dbg_dump_aq_desc(pf);
1013 			} else {
1014 				dev_info(&pf->pdev->dev,
1015 					 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1016 				dev_info(&pf->pdev->dev,
1017 					 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1018 				dev_info(&pf->pdev->dev,
1019 					 "dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1020 				dev_info(&pf->pdev->dev, "dump desc aq\n");
1021 			}
1022 		} else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1023 			dev_info(&pf->pdev->dev,
1024 				 "core reset count: %d\n", pf->corer_count);
1025 			dev_info(&pf->pdev->dev,
1026 				 "global reset count: %d\n", pf->globr_count);
1027 			dev_info(&pf->pdev->dev,
1028 				 "emp reset count: %d\n", pf->empr_count);
1029 			dev_info(&pf->pdev->dev,
1030 				 "pf reset count: %d\n", pf->pfr_count);
1031 			dev_info(&pf->pdev->dev,
1032 				 "pf tx sluggish count: %d\n",
1033 				 pf->tx_sluggish_count);
1034 		} else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1035 			struct i40e_aqc_query_port_ets_config_resp *bw_data;
1036 			struct i40e_dcbx_config *cfg =
1037 						&pf->hw.local_dcbx_config;
1038 			struct i40e_dcbx_config *r_cfg =
1039 						&pf->hw.remote_dcbx_config;
1040 			int i, ret;
1041 			u16 switch_id;
1042 
1043 			bw_data = kzalloc(sizeof(
1044 				    struct i40e_aqc_query_port_ets_config_resp),
1045 					  GFP_KERNEL);
1046 			if (!bw_data) {
1047 				ret = -ENOMEM;
1048 				goto command_write_done;
1049 			}
1050 
1051 			vsi = pf->vsi[pf->lan_vsi];
1052 			switch_id =
1053 				le16_to_cpu(vsi->info.switch_id) &
1054 					    I40E_AQ_VSI_SW_ID_MASK;
1055 
1056 			ret = i40e_aq_query_port_ets_config(&pf->hw,
1057 							    switch_id,
1058 							    bw_data, NULL);
1059 			if (ret) {
1060 				dev_info(&pf->pdev->dev,
1061 					 "Query Port ETS Config AQ command failed =0x%x\n",
1062 					 pf->hw.aq.asq_last_status);
1063 				kfree(bw_data);
1064 				bw_data = NULL;
1065 				goto command_write_done;
1066 			}
1067 			dev_info(&pf->pdev->dev,
1068 				 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1069 				 bw_data->tc_valid_bits,
1070 				 bw_data->tc_strict_priority_bits,
1071 				 le16_to_cpu(bw_data->tc_bw_max[0]),
1072 				 le16_to_cpu(bw_data->tc_bw_max[1]));
1073 			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1074 				dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1075 					 bw_data->tc_bw_share_credits[i],
1076 					 le16_to_cpu(bw_data->tc_bw_limits[i]));
1077 			}
1078 
1079 			kfree(bw_data);
1080 			bw_data = NULL;
1081 
1082 			dev_info(&pf->pdev->dev,
1083 				 "port dcbx_mode=%d\n", cfg->dcbx_mode);
1084 			dev_info(&pf->pdev->dev,
1085 				 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1086 				 cfg->etscfg.willing, cfg->etscfg.cbs,
1087 				 cfg->etscfg.maxtcs);
1088 			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1089 				dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1090 					 i, cfg->etscfg.prioritytable[i],
1091 					 cfg->etscfg.tcbwtable[i],
1092 					 cfg->etscfg.tsatable[i]);
1093 			}
1094 			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1095 				dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1096 					 i, cfg->etsrec.prioritytable[i],
1097 					 cfg->etsrec.tcbwtable[i],
1098 					 cfg->etsrec.tsatable[i]);
1099 			}
1100 			dev_info(&pf->pdev->dev,
1101 				 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1102 				 cfg->pfc.willing, cfg->pfc.mbc,
1103 				 cfg->pfc.pfccap, cfg->pfc.pfcenable);
1104 			dev_info(&pf->pdev->dev,
1105 				 "port app_table: num_apps=%d\n", cfg->numapps);
1106 			for (i = 0; i < cfg->numapps; i++) {
1107 				dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1108 					 i, cfg->app[i].priority,
1109 					 cfg->app[i].selector,
1110 					 cfg->app[i].protocolid);
1111 			}
1112 			/* Peer TLV DCBX data */
1113 			dev_info(&pf->pdev->dev,
1114 				 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1115 				 r_cfg->etscfg.willing,
1116 				 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1117 			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1118 				dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1119 					 i, r_cfg->etscfg.prioritytable[i],
1120 					 r_cfg->etscfg.tcbwtable[i],
1121 					 r_cfg->etscfg.tsatable[i]);
1122 			}
1123 			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1124 				dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1125 					 i, r_cfg->etsrec.prioritytable[i],
1126 					 r_cfg->etsrec.tcbwtable[i],
1127 					 r_cfg->etsrec.tsatable[i]);
1128 			}
1129 			dev_info(&pf->pdev->dev,
1130 				 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1131 				 r_cfg->pfc.willing,
1132 				 r_cfg->pfc.mbc,
1133 				 r_cfg->pfc.pfccap,
1134 				 r_cfg->pfc.pfcenable);
1135 			dev_info(&pf->pdev->dev,
1136 				 "remote port app_table: num_apps=%d\n",
1137 				 r_cfg->numapps);
1138 			for (i = 0; i < r_cfg->numapps; i++) {
1139 				dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1140 					 i, r_cfg->app[i].priority,
1141 					 r_cfg->app[i].selector,
1142 					 r_cfg->app[i].protocolid);
1143 			}
1144 		} else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1145 			int cluster_id, table_id;
1146 			int index, ret;
1147 			u16 buff_len = 4096;
1148 			u32 next_index;
1149 			u8 next_table;
1150 			u8 *buff;
1151 			u16 rlen;
1152 
1153 			cnt = sscanf(&cmd_buf[18], "%i %i %i",
1154 				     &cluster_id, &table_id, &index);
1155 			if (cnt != 3) {
1156 				dev_info(&pf->pdev->dev,
1157 					 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1158 				goto command_write_done;
1159 			}
1160 
1161 			dev_info(&pf->pdev->dev,
1162 				 "AQ debug dump fwdata params %x %x %x %x\n",
1163 				 cluster_id, table_id, index, buff_len);
1164 			buff = kzalloc(buff_len, GFP_KERNEL);
1165 			if (!buff)
1166 				goto command_write_done;
1167 
1168 			ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1169 						 index, buff_len, buff, &rlen,
1170 						 &next_table, &next_index,
1171 						 NULL);
1172 			if (ret) {
1173 				dev_info(&pf->pdev->dev,
1174 					 "debug dump fwdata AQ Failed %d 0x%x\n",
1175 					 ret, pf->hw.aq.asq_last_status);
1176 				kfree(buff);
1177 				buff = NULL;
1178 				goto command_write_done;
1179 			}
1180 			dev_info(&pf->pdev->dev,
1181 				 "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1182 				 rlen, next_table, next_index);
1183 			print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1184 				       DUMP_PREFIX_OFFSET, 16, 1,
1185 				       buff, rlen, true);
1186 			kfree(buff);
1187 			buff = NULL;
1188 		} else {
1189 			dev_info(&pf->pdev->dev,
1190 				 "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");
1191 			dev_info(&pf->pdev->dev, "dump switch\n");
1192 			dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1193 			dev_info(&pf->pdev->dev, "dump reset stats\n");
1194 			dev_info(&pf->pdev->dev, "dump port\n");
1195 			dev_info(&pf->pdev->dev, "dump vf [vf_id]\n");
1196 			dev_info(&pf->pdev->dev,
1197 				 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1198 		}
1199 	} else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1200 		dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1201 		i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1202 
1203 	} else if (strncmp(cmd_buf, "corer", 5) == 0) {
1204 		dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1205 		i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1206 
1207 	} else if (strncmp(cmd_buf, "globr", 5) == 0) {
1208 		dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1209 		i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1210 
1211 	} else if (strncmp(cmd_buf, "read", 4) == 0) {
1212 		u32 address;
1213 		u32 value;
1214 
1215 		cnt = sscanf(&cmd_buf[4], "%i", &address);
1216 		if (cnt != 1) {
1217 			dev_info(&pf->pdev->dev, "read <reg>\n");
1218 			goto command_write_done;
1219 		}
1220 
1221 		/* check the range on address */
1222 		if (address > (pf->ioremap_len - sizeof(u32))) {
1223 			dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
1224 				 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1225 			goto command_write_done;
1226 		}
1227 
1228 		value = rd32(&pf->hw, address);
1229 		dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1230 			 address, value);
1231 
1232 	} else if (strncmp(cmd_buf, "write", 5) == 0) {
1233 		u32 address, value;
1234 
1235 		cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1236 		if (cnt != 2) {
1237 			dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1238 			goto command_write_done;
1239 		}
1240 
1241 		/* check the range on address */
1242 		if (address > (pf->ioremap_len - sizeof(u32))) {
1243 			dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
1244 				 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1245 			goto command_write_done;
1246 		}
1247 		wr32(&pf->hw, address, value);
1248 		value = rd32(&pf->hw, address);
1249 		dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1250 			 address, value);
1251 	} else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1252 		if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1253 			cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1254 			if (cnt == 0) {
1255 				int i;
1256 
1257 				for (i = 0; i < pf->num_alloc_vsi; i++)
1258 					i40e_vsi_reset_stats(pf->vsi[i]);
1259 				dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1260 			} else if (cnt == 1) {
1261 				vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1262 				if (!vsi) {
1263 					dev_info(&pf->pdev->dev,
1264 						 "clear_stats vsi: bad vsi %d\n",
1265 						 vsi_seid);
1266 					goto command_write_done;
1267 				}
1268 				i40e_vsi_reset_stats(vsi);
1269 				dev_info(&pf->pdev->dev,
1270 					 "vsi clear stats called for vsi %d\n",
1271 					 vsi_seid);
1272 			} else {
1273 				dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1274 			}
1275 		} else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1276 			if (pf->hw.partition_id == 1) {
1277 				i40e_pf_reset_stats(pf);
1278 				dev_info(&pf->pdev->dev, "port stats cleared\n");
1279 			} else {
1280 				dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1281 			}
1282 		} else {
1283 			dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1284 		}
1285 	} else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1286 		struct i40e_aq_desc *desc;
1287 		int ret;
1288 
1289 		desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1290 		if (!desc)
1291 			goto command_write_done;
1292 		cnt = sscanf(&cmd_buf[11],
1293 			     "%hi %hi %hi %hi %i %i %i %i %i %i",
1294 			     &desc->flags,
1295 			     &desc->opcode, &desc->datalen, &desc->retval,
1296 			     &desc->cookie_high, &desc->cookie_low,
1297 			     &desc->params.internal.param0,
1298 			     &desc->params.internal.param1,
1299 			     &desc->params.internal.param2,
1300 			     &desc->params.internal.param3);
1301 		if (cnt != 10) {
1302 			dev_info(&pf->pdev->dev,
1303 				 "send aq_cmd: bad command string, cnt=%d\n",
1304 				 cnt);
1305 			kfree(desc);
1306 			desc = NULL;
1307 			goto command_write_done;
1308 		}
1309 		ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1310 		if (!ret) {
1311 			dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1312 		} else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1313 			dev_info(&pf->pdev->dev,
1314 				 "AQ command send failed Opcode %x AQ Error: %d\n",
1315 				 desc->opcode, pf->hw.aq.asq_last_status);
1316 		} else {
1317 			dev_info(&pf->pdev->dev,
1318 				 "AQ command send failed Opcode %x Status: %d\n",
1319 				 desc->opcode, ret);
1320 		}
1321 		dev_info(&pf->pdev->dev,
1322 			 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1323 			 desc->flags, desc->opcode, desc->datalen, desc->retval,
1324 			 desc->cookie_high, desc->cookie_low,
1325 			 desc->params.internal.param0,
1326 			 desc->params.internal.param1,
1327 			 desc->params.internal.param2,
1328 			 desc->params.internal.param3);
1329 		kfree(desc);
1330 		desc = NULL;
1331 	} else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1332 		struct i40e_aq_desc *desc;
1333 		u16 buffer_len;
1334 		u8 *buff;
1335 		int ret;
1336 
1337 		desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1338 		if (!desc)
1339 			goto command_write_done;
1340 		cnt = sscanf(&cmd_buf[20],
1341 			     "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1342 			     &desc->flags,
1343 			     &desc->opcode, &desc->datalen, &desc->retval,
1344 			     &desc->cookie_high, &desc->cookie_low,
1345 			     &desc->params.internal.param0,
1346 			     &desc->params.internal.param1,
1347 			     &desc->params.internal.param2,
1348 			     &desc->params.internal.param3,
1349 			     &buffer_len);
1350 		if (cnt != 11) {
1351 			dev_info(&pf->pdev->dev,
1352 				 "send indirect aq_cmd: bad command string, cnt=%d\n",
1353 				 cnt);
1354 			kfree(desc);
1355 			desc = NULL;
1356 			goto command_write_done;
1357 		}
1358 		/* Just stub a buffer big enough in case user messed up */
1359 		if (buffer_len == 0)
1360 			buffer_len = 1280;
1361 
1362 		buff = kzalloc(buffer_len, GFP_KERNEL);
1363 		if (!buff) {
1364 			kfree(desc);
1365 			desc = NULL;
1366 			goto command_write_done;
1367 		}
1368 		desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1369 		ret = i40e_asq_send_command(&pf->hw, desc, buff,
1370 					    buffer_len, NULL);
1371 		if (!ret) {
1372 			dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1373 		} else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
1374 			dev_info(&pf->pdev->dev,
1375 				 "AQ command send failed Opcode %x AQ Error: %d\n",
1376 				 desc->opcode, pf->hw.aq.asq_last_status);
1377 		} else {
1378 			dev_info(&pf->pdev->dev,
1379 				 "AQ command send failed Opcode %x Status: %d\n",
1380 				 desc->opcode, ret);
1381 		}
1382 		dev_info(&pf->pdev->dev,
1383 			 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1384 			 desc->flags, desc->opcode, desc->datalen, desc->retval,
1385 			 desc->cookie_high, desc->cookie_low,
1386 			 desc->params.internal.param0,
1387 			 desc->params.internal.param1,
1388 			 desc->params.internal.param2,
1389 			 desc->params.internal.param3);
1390 		print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1391 			       DUMP_PREFIX_OFFSET, 16, 1,
1392 			       buff, buffer_len, true);
1393 		kfree(buff);
1394 		buff = NULL;
1395 		kfree(desc);
1396 		desc = NULL;
1397 	} else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1398 		dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1399 			 i40e_get_current_fd_count(pf));
1400 	} else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1401 		if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1402 			int ret;
1403 
1404 			ret = i40e_aq_stop_lldp(&pf->hw, false, false, NULL);
1405 			if (ret) {
1406 				dev_info(&pf->pdev->dev,
1407 					 "Stop LLDP AQ command failed =0x%x\n",
1408 					 pf->hw.aq.asq_last_status);
1409 				goto command_write_done;
1410 			}
1411 			ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1412 						pf->hw.mac.addr,
1413 						ETH_P_LLDP, 0,
1414 						pf->vsi[pf->lan_vsi]->seid,
1415 						0, true, NULL, NULL);
1416 			if (ret) {
1417 				dev_info(&pf->pdev->dev,
1418 					"%s: Add Control Packet Filter AQ command failed =0x%x\n",
1419 					__func__, pf->hw.aq.asq_last_status);
1420 				goto command_write_done;
1421 			}
1422 #ifdef CONFIG_I40E_DCB
1423 			pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1424 				       DCB_CAP_DCBX_VER_IEEE;
1425 #endif /* CONFIG_I40E_DCB */
1426 		} else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1427 			int ret;
1428 
1429 			ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1430 						pf->hw.mac.addr,
1431 						ETH_P_LLDP, 0,
1432 						pf->vsi[pf->lan_vsi]->seid,
1433 						0, false, NULL, NULL);
1434 			if (ret) {
1435 				dev_info(&pf->pdev->dev,
1436 					"%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1437 					__func__, pf->hw.aq.asq_last_status);
1438 				/* Continue and start FW LLDP anyways */
1439 			}
1440 
1441 			ret = i40e_aq_start_lldp(&pf->hw, false, NULL);
1442 			if (ret) {
1443 				dev_info(&pf->pdev->dev,
1444 					 "Start LLDP AQ command failed =0x%x\n",
1445 					 pf->hw.aq.asq_last_status);
1446 				goto command_write_done;
1447 			}
1448 #ifdef CONFIG_I40E_DCB
1449 			pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1450 				       DCB_CAP_DCBX_VER_IEEE;
1451 #endif /* CONFIG_I40E_DCB */
1452 		} else if (strncmp(&cmd_buf[5],
1453 			   "get local", 9) == 0) {
1454 			u16 llen, rlen;
1455 			int ret;
1456 			u8 *buff;
1457 
1458 			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1459 			if (!buff)
1460 				goto command_write_done;
1461 
1462 			ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1463 						   I40E_AQ_LLDP_MIB_LOCAL,
1464 						   buff, I40E_LLDPDU_SIZE,
1465 						   &llen, &rlen, NULL);
1466 			if (ret) {
1467 				dev_info(&pf->pdev->dev,
1468 					 "Get LLDP MIB (local) AQ command failed =0x%x\n",
1469 					 pf->hw.aq.asq_last_status);
1470 				kfree(buff);
1471 				buff = NULL;
1472 				goto command_write_done;
1473 			}
1474 			dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1475 			print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1476 				       DUMP_PREFIX_OFFSET, 16, 1,
1477 				       buff, I40E_LLDPDU_SIZE, true);
1478 			kfree(buff);
1479 			buff = NULL;
1480 		} else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1481 			u16 llen, rlen;
1482 			int ret;
1483 			u8 *buff;
1484 
1485 			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1486 			if (!buff)
1487 				goto command_write_done;
1488 
1489 			ret = i40e_aq_get_lldp_mib(&pf->hw,
1490 					I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1491 					I40E_AQ_LLDP_MIB_REMOTE,
1492 					buff, I40E_LLDPDU_SIZE,
1493 					&llen, &rlen, NULL);
1494 			if (ret) {
1495 				dev_info(&pf->pdev->dev,
1496 					 "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1497 					 pf->hw.aq.asq_last_status);
1498 				kfree(buff);
1499 				buff = NULL;
1500 				goto command_write_done;
1501 			}
1502 			dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1503 			print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1504 				       DUMP_PREFIX_OFFSET, 16, 1,
1505 				       buff, I40E_LLDPDU_SIZE, true);
1506 			kfree(buff);
1507 			buff = NULL;
1508 		} else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1509 			int ret;
1510 
1511 			ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1512 								true, NULL);
1513 			if (ret) {
1514 				dev_info(&pf->pdev->dev,
1515 					 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1516 					 pf->hw.aq.asq_last_status);
1517 				goto command_write_done;
1518 			}
1519 		} else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1520 			int ret;
1521 
1522 			ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1523 								false, NULL);
1524 			if (ret) {
1525 				dev_info(&pf->pdev->dev,
1526 					 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1527 					 pf->hw.aq.asq_last_status);
1528 				goto command_write_done;
1529 			}
1530 		}
1531 	} else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1532 		u16 buffer_len, bytes;
1533 		u16 module;
1534 		u32 offset;
1535 		u16 *buff;
1536 		int ret;
1537 
1538 		cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1539 			     &module, &offset, &buffer_len);
1540 		if (cnt == 0) {
1541 			module = 0;
1542 			offset = 0;
1543 			buffer_len = 0;
1544 		} else if (cnt == 1) {
1545 			offset = 0;
1546 			buffer_len = 0;
1547 		} else if (cnt == 2) {
1548 			buffer_len = 0;
1549 		} else if (cnt > 3) {
1550 			dev_info(&pf->pdev->dev,
1551 				 "nvm read: bad command string, cnt=%d\n", cnt);
1552 			goto command_write_done;
1553 		}
1554 
1555 		/* set the max length */
1556 		buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1557 
1558 		bytes = 2 * buffer_len;
1559 
1560 		/* read at least 1k bytes, no more than 4kB */
1561 		bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1562 		buff = kzalloc(bytes, GFP_KERNEL);
1563 		if (!buff)
1564 			goto command_write_done;
1565 
1566 		ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1567 		if (ret) {
1568 			dev_info(&pf->pdev->dev,
1569 				 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1570 				 ret, pf->hw.aq.asq_last_status);
1571 			kfree(buff);
1572 			goto command_write_done;
1573 		}
1574 
1575 		ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1576 				       bytes, (u8 *)buff, true, NULL);
1577 		i40e_release_nvm(&pf->hw);
1578 		if (ret) {
1579 			dev_info(&pf->pdev->dev,
1580 				 "Read NVM AQ failed err=%d status=0x%x\n",
1581 				 ret, pf->hw.aq.asq_last_status);
1582 		} else {
1583 			dev_info(&pf->pdev->dev,
1584 				 "Read NVM module=0x%x offset=0x%x words=%d\n",
1585 				 module, offset, buffer_len);
1586 			if (bytes)
1587 				print_hex_dump(KERN_INFO, "NVM Dump: ",
1588 					DUMP_PREFIX_OFFSET, 16, 2,
1589 					buff, bytes, true);
1590 		}
1591 		kfree(buff);
1592 		buff = NULL;
1593 	} else {
1594 		dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1595 		dev_info(&pf->pdev->dev, "available commands\n");
1596 		dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1597 		dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1598 		dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1599 		dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1600 		dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1601 		dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1602 		dev_info(&pf->pdev->dev, "  dump switch\n");
1603 		dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1604 		dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1605 		dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1606 		dev_info(&pf->pdev->dev, "  dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1607 		dev_info(&pf->pdev->dev, "  dump desc aq\n");
1608 		dev_info(&pf->pdev->dev, "  dump reset stats\n");
1609 		dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
1610 		dev_info(&pf->pdev->dev, "  read <reg>\n");
1611 		dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1612 		dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1613 		dev_info(&pf->pdev->dev, "  clear_stats port\n");
1614 		dev_info(&pf->pdev->dev, "  pfr\n");
1615 		dev_info(&pf->pdev->dev, "  corer\n");
1616 		dev_info(&pf->pdev->dev, "  globr\n");
1617 		dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1618 		dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1619 		dev_info(&pf->pdev->dev, "  fd current cnt");
1620 		dev_info(&pf->pdev->dev, "  lldp start\n");
1621 		dev_info(&pf->pdev->dev, "  lldp stop\n");
1622 		dev_info(&pf->pdev->dev, "  lldp get local\n");
1623 		dev_info(&pf->pdev->dev, "  lldp get remote\n");
1624 		dev_info(&pf->pdev->dev, "  lldp event on\n");
1625 		dev_info(&pf->pdev->dev, "  lldp event off\n");
1626 		dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1627 	}
1628 
1629 command_write_done:
1630 	kfree(cmd_buf);
1631 	cmd_buf = NULL;
1632 	return count;
1633 }
1634 
1635 static const struct file_operations i40e_dbg_command_fops = {
1636 	.owner = THIS_MODULE,
1637 	.open =  simple_open,
1638 	.read =  i40e_dbg_command_read,
1639 	.write = i40e_dbg_command_write,
1640 };
1641 
1642 /**************************************************************
1643  * netdev_ops
1644  * The netdev_ops entry in debugfs is for giving the driver commands
1645  * to be executed from the netdev operations.
1646  **************************************************************/
1647 static char i40e_dbg_netdev_ops_buf[256] = "";
1648 
1649 /**
1650  * i40e_dbg_netdev_ops_read - read for netdev_ops datum
1651  * @filp: the opened file
1652  * @buffer: where to write the data for the user to read
1653  * @count: the size of the user's buffer
1654  * @ppos: file position offset
1655  **/
1656 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1657 					size_t count, loff_t *ppos)
1658 {
1659 	struct i40e_pf *pf = filp->private_data;
1660 	int bytes_not_copied;
1661 	int buf_size = 256;
1662 	char *buf;
1663 	int len;
1664 
1665 	/* don't allow partal reads */
1666 	if (*ppos != 0)
1667 		return 0;
1668 	if (count < buf_size)
1669 		return -ENOSPC;
1670 
1671 	buf = kzalloc(buf_size, GFP_KERNEL);
1672 	if (!buf)
1673 		return -ENOSPC;
1674 
1675 	len = snprintf(buf, buf_size, "%s: %s\n",
1676 		       pf->vsi[pf->lan_vsi]->netdev->name,
1677 		       i40e_dbg_netdev_ops_buf);
1678 
1679 	bytes_not_copied = copy_to_user(buffer, buf, len);
1680 	kfree(buf);
1681 
1682 	if (bytes_not_copied)
1683 		return -EFAULT;
1684 
1685 	*ppos = len;
1686 	return len;
1687 }
1688 
1689 /**
1690  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1691  * @filp: the opened file
1692  * @buffer: where to find the user's data
1693  * @count: the length of the user's data
1694  * @ppos: file position offset
1695  **/
1696 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1697 					 const char __user *buffer,
1698 					 size_t count, loff_t *ppos)
1699 {
1700 	struct i40e_pf *pf = filp->private_data;
1701 	int bytes_not_copied;
1702 	struct i40e_vsi *vsi;
1703 	char *buf_tmp;
1704 	int vsi_seid;
1705 	int i, cnt;
1706 
1707 	/* don't allow partial writes */
1708 	if (*ppos != 0)
1709 		return 0;
1710 	if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1711 		return -ENOSPC;
1712 
1713 	memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1714 	bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1715 					  buffer, count);
1716 	if (bytes_not_copied)
1717 		return -EFAULT;
1718 	i40e_dbg_netdev_ops_buf[count] = '\0';
1719 
1720 	buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1721 	if (buf_tmp) {
1722 		*buf_tmp = '\0';
1723 		count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1724 	}
1725 
1726 	if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1727 		int mtu;
1728 
1729 		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1730 			     &vsi_seid, &mtu);
1731 		if (cnt != 2) {
1732 			dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1733 			goto netdev_ops_write_done;
1734 		}
1735 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1736 		if (!vsi) {
1737 			dev_info(&pf->pdev->dev,
1738 				 "change_mtu: VSI %d not found\n", vsi_seid);
1739 		} else if (!vsi->netdev) {
1740 			dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
1741 				 vsi_seid);
1742 		} else if (rtnl_trylock()) {
1743 			vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1744 								mtu);
1745 			rtnl_unlock();
1746 			dev_info(&pf->pdev->dev, "change_mtu called\n");
1747 		} else {
1748 			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1749 		}
1750 
1751 	} else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1752 		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1753 		if (cnt != 1) {
1754 			dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1755 			goto netdev_ops_write_done;
1756 		}
1757 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1758 		if (!vsi) {
1759 			dev_info(&pf->pdev->dev,
1760 				 "set_rx_mode: VSI %d not found\n", vsi_seid);
1761 		} else if (!vsi->netdev) {
1762 			dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
1763 				 vsi_seid);
1764 		} else if (rtnl_trylock()) {
1765 			vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1766 			rtnl_unlock();
1767 			dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1768 		} else {
1769 			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1770 		}
1771 
1772 	} else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1773 		cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1774 		if (cnt != 1) {
1775 			dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1776 			goto netdev_ops_write_done;
1777 		}
1778 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1779 		if (!vsi) {
1780 			dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1781 				 vsi_seid);
1782 		} else if (!vsi->netdev) {
1783 			dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
1784 				 vsi_seid);
1785 		} else {
1786 			for (i = 0; i < vsi->num_q_vectors; i++)
1787 				napi_schedule(&vsi->q_vectors[i]->napi);
1788 			dev_info(&pf->pdev->dev, "napi called\n");
1789 		}
1790 	} else {
1791 		dev_info(&pf->pdev->dev, "unknown command '%s'\n",
1792 			 i40e_dbg_netdev_ops_buf);
1793 		dev_info(&pf->pdev->dev, "available commands\n");
1794 		dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
1795 		dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
1796 		dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
1797 	}
1798 netdev_ops_write_done:
1799 	return count;
1800 }
1801 
1802 static const struct file_operations i40e_dbg_netdev_ops_fops = {
1803 	.owner = THIS_MODULE,
1804 	.open = simple_open,
1805 	.read = i40e_dbg_netdev_ops_read,
1806 	.write = i40e_dbg_netdev_ops_write,
1807 };
1808 
1809 /**
1810  * i40e_dbg_pf_init - setup the debugfs directory for the PF
1811  * @pf: the PF that is starting up
1812  **/
1813 void i40e_dbg_pf_init(struct i40e_pf *pf)
1814 {
1815 	const char *name = pci_name(pf->pdev);
1816 
1817 	pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
1818 
1819 	debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
1820 			    &i40e_dbg_command_fops);
1821 
1822 	debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
1823 			    &i40e_dbg_netdev_ops_fops);
1824 }
1825 
1826 /**
1827  * i40e_dbg_pf_exit - clear out the PF's debugfs entries
1828  * @pf: the PF that is stopping
1829  **/
1830 void i40e_dbg_pf_exit(struct i40e_pf *pf)
1831 {
1832 	debugfs_remove_recursive(pf->i40e_dbg_pf);
1833 	pf->i40e_dbg_pf = NULL;
1834 }
1835 
1836 /**
1837  * i40e_dbg_init - start up debugfs for the driver
1838  **/
1839 void i40e_dbg_init(void)
1840 {
1841 	i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
1842 	if (!i40e_dbg_root)
1843 		pr_info("init of debugfs failed\n");
1844 }
1845 
1846 /**
1847  * i40e_dbg_exit - clean out the driver's debugfs entries
1848  **/
1849 void i40e_dbg_exit(void)
1850 {
1851 	debugfs_remove_recursive(i40e_dbg_root);
1852 	i40e_dbg_root = NULL;
1853 }
1854 
1855 #endif /* CONFIG_DEBUG_FS */
1856