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  **/
25 static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
26 {
27 	int i;
28 
29 	if (seid < 0)
30 		dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
31 	else
32 		for (i = 0; i < pf->num_alloc_vsi; i++)
33 			if (pf->vsi[i] && (pf->vsi[i]->seid == seid))
34 				return pf->vsi[i];
35 
36 	return NULL;
37 }
38 
39 /**
40  * i40e_dbg_find_veb - searches for the veb with the given seid
41  * @pf: the PF structure to search for the veb
42  * @seid: seid of the veb it is searching for
43  **/
44 static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
45 {
46 	int i;
47 
48 	for (i = 0; i < I40E_MAX_VEB; i++)
49 		if (pf->veb[i] && pf->veb[i]->seid == seid)
50 			return pf->veb[i];
51 	return NULL;
52 }
53 
54 /**************************************************************
55  * command
56  * The command entry in debugfs is for giving the driver commands
57  * to be executed - these may be for changing the internal switch
58  * setup, adding or removing filters, or other things.  Many of
59  * these will be useful for some forms of unit testing.
60  **************************************************************/
61 static char i40e_dbg_command_buf[256] = "";
62 
63 /**
64  * i40e_dbg_command_read - read for command datum
65  * @filp: the opened file
66  * @buffer: where to write the data for the user to read
67  * @count: the size of the user's buffer
68  * @ppos: file position offset
69  **/
70 static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
71 				     size_t count, loff_t *ppos)
72 {
73 	struct i40e_pf *pf = filp->private_data;
74 	int bytes_not_copied;
75 	int buf_size = 256;
76 	char *buf;
77 	int len;
78 
79 	/* don't allow partial reads */
80 	if (*ppos != 0)
81 		return 0;
82 	if (count < buf_size)
83 		return -ENOSPC;
84 
85 	buf = kzalloc(buf_size, GFP_KERNEL);
86 	if (!buf)
87 		return -ENOSPC;
88 
89 	len = snprintf(buf, buf_size, "%s: %s\n",
90 		       pf->vsi[pf->lan_vsi]->netdev->name,
91 		       i40e_dbg_command_buf);
92 
93 	bytes_not_copied = copy_to_user(buffer, buf, len);
94 	kfree(buf);
95 
96 	if (bytes_not_copied)
97 		return -EFAULT;
98 
99 	*ppos = len;
100 	return len;
101 }
102 
103 static char *i40e_filter_state_string[] = {
104 	"INVALID",
105 	"NEW",
106 	"ACTIVE",
107 	"FAILED",
108 	"REMOVE",
109 };
110 
111 /**
112  * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
113  * @pf: the i40e_pf created in command write
114  * @seid: the seid the user put in
115  **/
116 static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
117 {
118 	struct rtnl_link_stats64 *nstat;
119 	struct i40e_mac_filter *f;
120 	struct i40e_vsi *vsi;
121 	int i, bkt;
122 
123 	vsi = i40e_dbg_find_vsi(pf, seid);
124 	if (!vsi) {
125 		dev_info(&pf->pdev->dev,
126 			 "dump %d: seid not found\n", seid);
127 		return;
128 	}
129 	dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
130 	if (vsi->netdev) {
131 		struct net_device *nd = vsi->netdev;
132 
133 		dev_info(&pf->pdev->dev, "    netdev: name = %s, state = %lu, flags = 0x%08x\n",
134 			 nd->name, nd->state, nd->flags);
135 		dev_info(&pf->pdev->dev, "        features      = 0x%08lx\n",
136 			 (unsigned long int)nd->features);
137 		dev_info(&pf->pdev->dev, "        hw_features   = 0x%08lx\n",
138 			 (unsigned long int)nd->hw_features);
139 		dev_info(&pf->pdev->dev, "        vlan_features = 0x%08lx\n",
140 			 (unsigned long int)nd->vlan_features);
141 	}
142 	dev_info(&pf->pdev->dev,
143 		 "    flags = 0x%08lx, netdev_registered = %i, current_netdev_flags = 0x%04x\n",
144 		 vsi->flags, vsi->netdev_registered, vsi->current_netdev_flags);
145 	for (i = 0; i < BITS_TO_LONGS(__I40E_VSI_STATE_SIZE__); i++)
146 		dev_info(&pf->pdev->dev,
147 			 "    state[%d] = %08lx\n",
148 			 i, vsi->state[i]);
149 	if (vsi == pf->vsi[pf->lan_vsi])
150 		dev_info(&pf->pdev->dev, "    MAC address: %pM SAN MAC: %pM Port MAC: %pM\n",
151 			 pf->hw.mac.addr,
152 			 pf->hw.mac.san_addr,
153 			 pf->hw.mac.port_addr);
154 	hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
155 		dev_info(&pf->pdev->dev,
156 			 "    mac_filter_hash: %pM vid=%d, state %s\n",
157 			 f->macaddr, f->vlan,
158 			 i40e_filter_state_string[f->state]);
159 	}
160 	dev_info(&pf->pdev->dev, "    active_filters %u, promisc_threshold %u, overflow promisc %s\n",
161 		 vsi->active_filters, vsi->promisc_threshold,
162 		 (test_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state) ?
163 		  "ON" : "OFF"));
164 	nstat = i40e_get_vsi_stats_struct(vsi);
165 	dev_info(&pf->pdev->dev,
166 		 "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
167 		 (unsigned long int)nstat->rx_packets,
168 		 (unsigned long int)nstat->rx_bytes,
169 		 (unsigned long int)nstat->rx_errors,
170 		 (unsigned long int)nstat->rx_dropped);
171 	dev_info(&pf->pdev->dev,
172 		 "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
173 		 (unsigned long int)nstat->tx_packets,
174 		 (unsigned long int)nstat->tx_bytes,
175 		 (unsigned long int)nstat->tx_errors,
176 		 (unsigned long int)nstat->tx_dropped);
177 	dev_info(&pf->pdev->dev,
178 		 "    net_stats: multicast = %lu, collisions = %lu\n",
179 		 (unsigned long int)nstat->multicast,
180 		 (unsigned long int)nstat->collisions);
181 	dev_info(&pf->pdev->dev,
182 		 "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
183 		 (unsigned long int)nstat->rx_length_errors,
184 		 (unsigned long int)nstat->rx_over_errors,
185 		 (unsigned long int)nstat->rx_crc_errors);
186 	dev_info(&pf->pdev->dev,
187 		 "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
188 		 (unsigned long int)nstat->rx_frame_errors,
189 		 (unsigned long int)nstat->rx_fifo_errors,
190 		 (unsigned long int)nstat->rx_missed_errors);
191 	dev_info(&pf->pdev->dev,
192 		 "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
193 		 (unsigned long int)nstat->tx_aborted_errors,
194 		 (unsigned long int)nstat->tx_carrier_errors,
195 		 (unsigned long int)nstat->tx_fifo_errors);
196 	dev_info(&pf->pdev->dev,
197 		 "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
198 		 (unsigned long int)nstat->tx_heartbeat_errors,
199 		 (unsigned long int)nstat->tx_window_errors);
200 	dev_info(&pf->pdev->dev,
201 		 "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
202 		 (unsigned long int)nstat->rx_compressed,
203 		 (unsigned long int)nstat->tx_compressed);
204 	dev_info(&pf->pdev->dev,
205 		 "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
206 		 (unsigned long int)vsi->net_stats_offsets.rx_packets,
207 		 (unsigned long int)vsi->net_stats_offsets.rx_bytes,
208 		 (unsigned long int)vsi->net_stats_offsets.rx_errors,
209 		 (unsigned long int)vsi->net_stats_offsets.rx_dropped);
210 	dev_info(&pf->pdev->dev,
211 		 "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
212 		 (unsigned long int)vsi->net_stats_offsets.tx_packets,
213 		 (unsigned long int)vsi->net_stats_offsets.tx_bytes,
214 		 (unsigned long int)vsi->net_stats_offsets.tx_errors,
215 		 (unsigned long int)vsi->net_stats_offsets.tx_dropped);
216 	dev_info(&pf->pdev->dev,
217 		 "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
218 		 (unsigned long int)vsi->net_stats_offsets.multicast,
219 		 (unsigned long int)vsi->net_stats_offsets.collisions);
220 	dev_info(&pf->pdev->dev,
221 		 "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
222 		 (unsigned long int)vsi->net_stats_offsets.rx_length_errors,
223 		 (unsigned long int)vsi->net_stats_offsets.rx_over_errors,
224 		 (unsigned long int)vsi->net_stats_offsets.rx_crc_errors);
225 	dev_info(&pf->pdev->dev,
226 		 "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
227 		 (unsigned long int)vsi->net_stats_offsets.rx_frame_errors,
228 		 (unsigned long int)vsi->net_stats_offsets.rx_fifo_errors,
229 		 (unsigned long int)vsi->net_stats_offsets.rx_missed_errors);
230 	dev_info(&pf->pdev->dev,
231 		 "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
232 		 (unsigned long int)vsi->net_stats_offsets.tx_aborted_errors,
233 		 (unsigned long int)vsi->net_stats_offsets.tx_carrier_errors,
234 		 (unsigned long int)vsi->net_stats_offsets.tx_fifo_errors);
235 	dev_info(&pf->pdev->dev,
236 		 "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
237 		 (unsigned long int)vsi->net_stats_offsets.tx_heartbeat_errors,
238 		 (unsigned long int)vsi->net_stats_offsets.tx_window_errors);
239 	dev_info(&pf->pdev->dev,
240 		 "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
241 		 (unsigned long int)vsi->net_stats_offsets.rx_compressed,
242 		 (unsigned long int)vsi->net_stats_offsets.tx_compressed);
243 	dev_info(&pf->pdev->dev,
244 		 "    tx_restart = %llu, tx_busy = %llu, rx_buf_failed = %llu, rx_page_failed = %llu\n",
245 		 vsi->tx_restart, vsi->tx_busy,
246 		 vsi->rx_buf_failed, vsi->rx_page_failed);
247 	rcu_read_lock();
248 	for (i = 0; i < vsi->num_queue_pairs; i++) {
249 		struct i40e_ring *rx_ring = READ_ONCE(vsi->rx_rings[i]);
250 
251 		if (!rx_ring)
252 			continue;
253 
254 		dev_info(&pf->pdev->dev,
255 			 "    rx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
256 			 i, *rx_ring->state,
257 			 rx_ring->queue_index,
258 			 rx_ring->reg_idx);
259 		dev_info(&pf->pdev->dev,
260 			 "    rx_rings[%i]: rx_buf_len = %d\n",
261 			 i, rx_ring->rx_buf_len);
262 		dev_info(&pf->pdev->dev,
263 			 "    rx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
264 			 i,
265 			 rx_ring->next_to_use,
266 			 rx_ring->next_to_clean,
267 			 rx_ring->ring_active);
268 		dev_info(&pf->pdev->dev,
269 			 "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
270 			 i, rx_ring->stats.packets,
271 			 rx_ring->stats.bytes,
272 			 rx_ring->rx_stats.non_eop_descs);
273 		dev_info(&pf->pdev->dev,
274 			 "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
275 			 i,
276 			 rx_ring->rx_stats.alloc_page_failed,
277 			 rx_ring->rx_stats.alloc_buff_failed);
278 		dev_info(&pf->pdev->dev,
279 			 "    rx_rings[%i]: rx_stats: realloc_count = 0, page_reuse_count = %lld\n",
280 			 i,
281 			 rx_ring->rx_stats.page_reuse_count);
282 		dev_info(&pf->pdev->dev,
283 			 "    rx_rings[%i]: size = %i\n",
284 			 i, rx_ring->size);
285 		dev_info(&pf->pdev->dev,
286 			 "    rx_rings[%i]: itr_setting = %d (%s)\n",
287 			 i, rx_ring->itr_setting,
288 			 ITR_IS_DYNAMIC(rx_ring->itr_setting) ? "dynamic" : "fixed");
289 	}
290 	for (i = 0; i < vsi->num_queue_pairs; i++) {
291 		struct i40e_ring *tx_ring = READ_ONCE(vsi->tx_rings[i]);
292 
293 		if (!tx_ring)
294 			continue;
295 
296 		dev_info(&pf->pdev->dev,
297 			 "    tx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
298 			 i, *tx_ring->state,
299 			 tx_ring->queue_index,
300 			 tx_ring->reg_idx);
301 		dev_info(&pf->pdev->dev,
302 			 "    tx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
303 			 i,
304 			 tx_ring->next_to_use,
305 			 tx_ring->next_to_clean,
306 			 tx_ring->ring_active);
307 		dev_info(&pf->pdev->dev,
308 			 "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
309 			 i, tx_ring->stats.packets,
310 			 tx_ring->stats.bytes,
311 			 tx_ring->tx_stats.restart_queue);
312 		dev_info(&pf->pdev->dev,
313 			 "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld, tx_stopped = %lld\n",
314 			 i,
315 			 tx_ring->tx_stats.tx_busy,
316 			 tx_ring->tx_stats.tx_done_old,
317 			 tx_ring->tx_stats.tx_stopped);
318 		dev_info(&pf->pdev->dev,
319 			 "    tx_rings[%i]: size = %i\n",
320 			 i, tx_ring->size);
321 		dev_info(&pf->pdev->dev,
322 			 "    tx_rings[%i]: DCB tc = %d\n",
323 			 i, tx_ring->dcb_tc);
324 		dev_info(&pf->pdev->dev,
325 			 "    tx_rings[%i]: itr_setting = %d (%s)\n",
326 			 i, tx_ring->itr_setting,
327 			 ITR_IS_DYNAMIC(tx_ring->itr_setting) ? "dynamic" : "fixed");
328 	}
329 	if (i40e_enabled_xdp_vsi(vsi)) {
330 		for (i = 0; i < vsi->num_queue_pairs; i++) {
331 			struct i40e_ring *xdp_ring = READ_ONCE(vsi->xdp_rings[i]);
332 
333 			if (!xdp_ring)
334 				continue;
335 
336 			dev_info(&pf->pdev->dev,
337 				 "    xdp_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
338 				 i, *xdp_ring->state,
339 				 xdp_ring->queue_index,
340 				 xdp_ring->reg_idx);
341 			dev_info(&pf->pdev->dev,
342 				 "    xdp_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
343 				 i,
344 				 xdp_ring->next_to_use,
345 				 xdp_ring->next_to_clean,
346 				 xdp_ring->ring_active);
347 			dev_info(&pf->pdev->dev,
348 				 "    xdp_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
349 				 i, xdp_ring->stats.packets,
350 				 xdp_ring->stats.bytes,
351 				 xdp_ring->tx_stats.restart_queue);
352 			dev_info(&pf->pdev->dev,
353 				 "    xdp_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
354 				 i,
355 				 xdp_ring->tx_stats.tx_busy,
356 				 xdp_ring->tx_stats.tx_done_old);
357 			dev_info(&pf->pdev->dev,
358 				 "    xdp_rings[%i]: size = %i\n",
359 				 i, xdp_ring->size);
360 			dev_info(&pf->pdev->dev,
361 				 "    xdp_rings[%i]: DCB tc = %d\n",
362 				 i, xdp_ring->dcb_tc);
363 			dev_info(&pf->pdev->dev,
364 				 "    xdp_rings[%i]: itr_setting = %d (%s)\n",
365 				 i, xdp_ring->itr_setting,
366 				 ITR_IS_DYNAMIC(xdp_ring->itr_setting) ?
367 				 "dynamic" : "fixed");
368 		}
369 	}
370 	rcu_read_unlock();
371 	dev_info(&pf->pdev->dev,
372 		 "    work_limit = %d\n",
373 		 vsi->work_limit);
374 	dev_info(&pf->pdev->dev,
375 		 "    max_frame = %d, rx_buf_len = %d dtype = %d\n",
376 		 vsi->max_frame, vsi->rx_buf_len, 0);
377 	dev_info(&pf->pdev->dev,
378 		 "    num_q_vectors = %i, base_vector = %i\n",
379 		 vsi->num_q_vectors, vsi->base_vector);
380 	dev_info(&pf->pdev->dev,
381 		 "    seid = %d, id = %d, uplink_seid = %d\n",
382 		 vsi->seid, vsi->id, vsi->uplink_seid);
383 	dev_info(&pf->pdev->dev,
384 		 "    base_queue = %d, num_queue_pairs = %d, num_tx_desc = %d, num_rx_desc = %d\n",
385 		 vsi->base_queue, vsi->num_queue_pairs, vsi->num_tx_desc,
386 		 vsi->num_rx_desc);
387 	dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
388 	if (vsi->type == I40E_VSI_SRIOV)
389 		dev_info(&pf->pdev->dev, "    VF ID = %i\n", vsi->vf_id);
390 	dev_info(&pf->pdev->dev,
391 		 "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
392 		 vsi->info.valid_sections, vsi->info.switch_id);
393 	dev_info(&pf->pdev->dev,
394 		 "    info: sw_reserved[] = 0x%02x 0x%02x\n",
395 		 vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
396 	dev_info(&pf->pdev->dev,
397 		 "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
398 		 vsi->info.sec_flags, vsi->info.sec_reserved);
399 	dev_info(&pf->pdev->dev,
400 		 "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
401 		 vsi->info.pvid, vsi->info.fcoe_pvid,
402 		 vsi->info.port_vlan_flags);
403 	dev_info(&pf->pdev->dev,
404 		 "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
405 		 vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
406 		 vsi->info.pvlan_reserved[2]);
407 	dev_info(&pf->pdev->dev,
408 		 "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
409 		 vsi->info.ingress_table, vsi->info.egress_table);
410 	dev_info(&pf->pdev->dev,
411 		 "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
412 		 vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
413 		 vsi->info.cas_pv_reserved);
414 	dev_info(&pf->pdev->dev,
415 		 "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
416 		 vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
417 		 vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
418 		 vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
419 		 vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
420 	dev_info(&pf->pdev->dev,
421 		 "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
422 		 vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
423 		 vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
424 		 vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
425 		 vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
426 	dev_info(&pf->pdev->dev,
427 		 "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
428 		 vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
429 		 vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
430 		 vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
431 		 vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
432 	dev_info(&pf->pdev->dev,
433 		 "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
434 		 vsi->info.queueing_opt_flags,
435 		 vsi->info.queueing_opt_reserved[0],
436 		 vsi->info.queueing_opt_reserved[1],
437 		 vsi->info.queueing_opt_reserved[2]);
438 	dev_info(&pf->pdev->dev,
439 		 "    info: up_enable_bits = 0x%02x\n",
440 		 vsi->info.up_enable_bits);
441 	dev_info(&pf->pdev->dev,
442 		 "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
443 		 vsi->info.sched_reserved, vsi->info.outer_up_table);
444 	dev_info(&pf->pdev->dev,
445 		 "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
446 		 vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
447 		 vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
448 		 vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
449 		 vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
450 	dev_info(&pf->pdev->dev,
451 		 "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
452 		 vsi->info.qs_handle[0], vsi->info.qs_handle[1],
453 		 vsi->info.qs_handle[2], vsi->info.qs_handle[3],
454 		 vsi->info.qs_handle[4], vsi->info.qs_handle[5],
455 		 vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
456 	dev_info(&pf->pdev->dev,
457 		 "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
458 		 vsi->info.stat_counter_idx, vsi->info.sched_id);
459 	dev_info(&pf->pdev->dev,
460 		 "    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",
461 		 vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
462 		 vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
463 		 vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
464 		 vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
465 		 vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
466 		 vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
467 	dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
468 	dev_info(&pf->pdev->dev,
469 		 "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
470 		 vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
471 	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
472 		dev_info(&pf->pdev->dev,
473 			 "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
474 			 i, vsi->tc_config.tc_info[i].qoffset,
475 			 vsi->tc_config.tc_info[i].qcount,
476 			 vsi->tc_config.tc_info[i].netdev_tc);
477 	}
478 	dev_info(&pf->pdev->dev,
479 		 "    bw: bw_limit = %d, bw_max_quanta = %d\n",
480 		 vsi->bw_limit, vsi->bw_max_quanta);
481 	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
482 		dev_info(&pf->pdev->dev,
483 			 "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
484 			 i, vsi->bw_ets_share_credits[i],
485 			 vsi->bw_ets_limit_credits[i],
486 			 vsi->bw_ets_max_quanta[i]);
487 	}
488 }
489 
490 /**
491  * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
492  * @pf: the i40e_pf created in command write
493  **/
494 static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
495 {
496 	struct i40e_adminq_ring *ring;
497 	struct i40e_hw *hw = &pf->hw;
498 	char hdr[32];
499 	int i;
500 
501 	snprintf(hdr, sizeof(hdr), "%s %s:         ",
502 		 dev_driver_string(&pf->pdev->dev),
503 		 dev_name(&pf->pdev->dev));
504 
505 	/* first the send (command) ring, then the receive (event) ring */
506 	dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
507 	ring = &(hw->aq.asq);
508 	for (i = 0; i < ring->count; i++) {
509 		struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
510 
511 		dev_info(&pf->pdev->dev,
512 			 "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
513 			 i, d->flags, d->opcode, d->datalen, d->retval,
514 			 d->cookie_high, d->cookie_low);
515 		print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
516 			       16, 1, d->params.raw, 16, 0);
517 	}
518 
519 	dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
520 	ring = &(hw->aq.arq);
521 	for (i = 0; i < ring->count; i++) {
522 		struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
523 
524 		dev_info(&pf->pdev->dev,
525 			 "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
526 			 i, d->flags, d->opcode, d->datalen, d->retval,
527 			 d->cookie_high, d->cookie_low);
528 		print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
529 			       16, 1, d->params.raw, 16, 0);
530 	}
531 }
532 
533 /**
534  * i40e_dbg_dump_desc - handles dump desc write into command datum
535  * @cnt: number of arguments that the user supplied
536  * @vsi_seid: vsi id entered by user
537  * @ring_id: ring id entered by user
538  * @desc_n: descriptor number entered by user
539  * @pf: the i40e_pf created in command write
540  * @type: enum describing whether ring is RX, TX or XDP
541  **/
542 static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
543 			       struct i40e_pf *pf, enum ring_type type)
544 {
545 	bool is_rx_ring = type == RING_TYPE_RX;
546 	struct i40e_tx_desc *txd;
547 	union i40e_rx_desc *rxd;
548 	struct i40e_ring *ring;
549 	struct i40e_vsi *vsi;
550 	int i;
551 
552 	vsi = i40e_dbg_find_vsi(pf, vsi_seid);
553 	if (!vsi) {
554 		dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
555 		return;
556 	}
557 	if (vsi->type != I40E_VSI_MAIN &&
558 	    vsi->type != I40E_VSI_FDIR &&
559 	    vsi->type != I40E_VSI_VMDQ2) {
560 		dev_info(&pf->pdev->dev,
561 			 "vsi %d type %d descriptor rings not available\n",
562 			 vsi_seid, vsi->type);
563 		return;
564 	}
565 	if (type == RING_TYPE_XDP && !i40e_enabled_xdp_vsi(vsi)) {
566 		dev_info(&pf->pdev->dev, "XDP not enabled on VSI %d\n", vsi_seid);
567 		return;
568 	}
569 	if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
570 		dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
571 		return;
572 	}
573 	if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
574 		dev_info(&pf->pdev->dev,
575 			 "descriptor rings have not been allocated for vsi %d\n",
576 			 vsi_seid);
577 		return;
578 	}
579 
580 	switch (type) {
581 	case RING_TYPE_RX:
582 		ring = kmemdup(vsi->rx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
583 		break;
584 	case RING_TYPE_TX:
585 		ring = kmemdup(vsi->tx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
586 		break;
587 	case RING_TYPE_XDP:
588 		ring = kmemdup(vsi->xdp_rings[ring_id], sizeof(*ring), GFP_KERNEL);
589 		break;
590 	default:
591 		ring = NULL;
592 		break;
593 	}
594 	if (!ring)
595 		return;
596 
597 	if (cnt == 2) {
598 		switch (type) {
599 		case RING_TYPE_RX:
600 			dev_info(&pf->pdev->dev, "VSI = %02i Rx ring = %02i\n", vsi_seid, ring_id);
601 			break;
602 		case RING_TYPE_TX:
603 			dev_info(&pf->pdev->dev, "VSI = %02i Tx ring = %02i\n", vsi_seid, ring_id);
604 			break;
605 		case RING_TYPE_XDP:
606 			dev_info(&pf->pdev->dev, "VSI = %02i XDP ring = %02i\n", vsi_seid, ring_id);
607 			break;
608 		}
609 		for (i = 0; i < ring->count; i++) {
610 			if (!is_rx_ring) {
611 				txd = I40E_TX_DESC(ring, i);
612 				dev_info(&pf->pdev->dev,
613 					 "   d[%03x] = 0x%016llx 0x%016llx\n",
614 					 i, txd->buffer_addr,
615 					 txd->cmd_type_offset_bsz);
616 			} else {
617 				rxd = I40E_RX_DESC(ring, i);
618 				dev_info(&pf->pdev->dev,
619 					 "   d[%03x] = 0x%016llx 0x%016llx\n",
620 					 i, rxd->read.pkt_addr,
621 					 rxd->read.hdr_addr);
622 			}
623 		}
624 	} else if (cnt == 3) {
625 		if (desc_n >= ring->count || desc_n < 0) {
626 			dev_info(&pf->pdev->dev,
627 				 "descriptor %d not found\n", desc_n);
628 			goto out;
629 		}
630 		if (!is_rx_ring) {
631 			txd = I40E_TX_DESC(ring, desc_n);
632 			dev_info(&pf->pdev->dev,
633 				 "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
634 				 vsi_seid, ring_id, desc_n,
635 				 txd->buffer_addr, txd->cmd_type_offset_bsz);
636 		} else {
637 			rxd = I40E_RX_DESC(ring, desc_n);
638 			dev_info(&pf->pdev->dev,
639 				 "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
640 				 vsi_seid, ring_id, desc_n,
641 				 rxd->read.pkt_addr, rxd->read.hdr_addr);
642 		}
643 	} else {
644 		dev_info(&pf->pdev->dev, "dump desc rx/tx/xdp <vsi_seid> <ring_id> [<desc_n>]\n");
645 	}
646 
647 out:
648 	kfree(ring);
649 }
650 
651 /**
652  * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
653  * @pf: the i40e_pf created in command write
654  **/
655 static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
656 {
657 	int i;
658 
659 	for (i = 0; i < pf->num_alloc_vsi; i++)
660 		if (pf->vsi[i])
661 			dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
662 				 i, pf->vsi[i]->seid);
663 }
664 
665 /**
666  * i40e_dbg_dump_eth_stats - handles dump stats write into command datum
667  * @pf: the i40e_pf created in command write
668  * @estats: the eth stats structure to be dumped
669  **/
670 static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
671 				    struct i40e_eth_stats *estats)
672 {
673 	dev_info(&pf->pdev->dev, "  ethstats:\n");
674 	dev_info(&pf->pdev->dev,
675 		 "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
676 		estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
677 	dev_info(&pf->pdev->dev,
678 		 "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
679 		 estats->rx_broadcast, estats->rx_discards);
680 	dev_info(&pf->pdev->dev,
681 		 "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
682 		 estats->rx_unknown_protocol, estats->tx_bytes);
683 	dev_info(&pf->pdev->dev,
684 		 "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
685 		 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
686 	dev_info(&pf->pdev->dev,
687 		 "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
688 		 estats->tx_discards, estats->tx_errors);
689 }
690 
691 /**
692  * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
693  * @pf: the i40e_pf created in command write
694  * @seid: the seid the user put in
695  **/
696 static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
697 {
698 	struct i40e_veb *veb;
699 
700 	veb = i40e_dbg_find_veb(pf, seid);
701 	if (!veb) {
702 		dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
703 		return;
704 	}
705 	dev_info(&pf->pdev->dev,
706 		 "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d mode=%s\n",
707 		 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
708 		 veb->uplink_seid,
709 		 veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
710 	i40e_dbg_dump_eth_stats(pf, &veb->stats);
711 }
712 
713 /**
714  * i40e_dbg_dump_veb_all - dumps all known veb's stats
715  * @pf: the i40e_pf created in command write
716  **/
717 static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
718 {
719 	struct i40e_veb *veb;
720 	int i;
721 
722 	for (i = 0; i < I40E_MAX_VEB; i++) {
723 		veb = pf->veb[i];
724 		if (veb)
725 			i40e_dbg_dump_veb_seid(pf, veb->seid);
726 	}
727 }
728 
729 /**
730  * i40e_dbg_dump_vf - dump VF info
731  * @pf: the i40e_pf created in command write
732  * @vf_id: the vf_id from the user
733  **/
734 static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
735 {
736 	struct i40e_vf *vf;
737 	struct i40e_vsi *vsi;
738 
739 	if (!pf->num_alloc_vfs) {
740 		dev_info(&pf->pdev->dev, "no VFs allocated\n");
741 	} else if ((vf_id >= 0) && (vf_id < pf->num_alloc_vfs)) {
742 		vf = &pf->vf[vf_id];
743 		vsi = pf->vsi[vf->lan_vsi_idx];
744 		dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
745 			 vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
746 		dev_info(&pf->pdev->dev, "       num MDD=%lld\n",
747 			 vf->num_mdd_events);
748 	} else {
749 		dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
750 	}
751 }
752 
753 /**
754  * i40e_dbg_dump_vf_all - dump VF info for all VFs
755  * @pf: the i40e_pf created in command write
756  **/
757 static void i40e_dbg_dump_vf_all(struct i40e_pf *pf)
758 {
759 	int i;
760 
761 	if (!pf->num_alloc_vfs)
762 		dev_info(&pf->pdev->dev, "no VFs enabled!\n");
763 	else
764 		for (i = 0; i < pf->num_alloc_vfs; i++)
765 			i40e_dbg_dump_vf(pf, i);
766 }
767 
768 /**
769  * i40e_dbg_command_write - write into command datum
770  * @filp: the opened file
771  * @buffer: where to find the user's data
772  * @count: the length of the user's data
773  * @ppos: file position offset
774  **/
775 static ssize_t i40e_dbg_command_write(struct file *filp,
776 				      const char __user *buffer,
777 				      size_t count, loff_t *ppos)
778 {
779 	struct i40e_pf *pf = filp->private_data;
780 	char *cmd_buf, *cmd_buf_tmp;
781 	int bytes_not_copied;
782 	struct i40e_vsi *vsi;
783 	int vsi_seid;
784 	int veb_seid;
785 	int vf_id;
786 	int cnt;
787 
788 	/* don't allow partial writes */
789 	if (*ppos != 0)
790 		return 0;
791 
792 	cmd_buf = kzalloc(count + 1, GFP_KERNEL);
793 	if (!cmd_buf)
794 		return count;
795 	bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
796 	if (bytes_not_copied) {
797 		kfree(cmd_buf);
798 		return -EFAULT;
799 	}
800 	cmd_buf[count] = '\0';
801 
802 	cmd_buf_tmp = strchr(cmd_buf, '\n');
803 	if (cmd_buf_tmp) {
804 		*cmd_buf_tmp = '\0';
805 		count = cmd_buf_tmp - cmd_buf + 1;
806 	}
807 
808 	if (strncmp(cmd_buf, "add vsi", 7) == 0) {
809 		vsi_seid = -1;
810 		cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
811 		if (cnt == 0) {
812 			/* default to PF VSI */
813 			vsi_seid = pf->vsi[pf->lan_vsi]->seid;
814 		} else if (vsi_seid < 0) {
815 			dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
816 				 vsi_seid);
817 			goto command_write_done;
818 		}
819 
820 		/* By default we are in VEPA mode, if this is the first VF/VMDq
821 		 * VSI to be added switch to VEB mode.
822 		 */
823 		if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
824 			pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
825 			i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
826 		}
827 
828 		vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
829 		if (vsi)
830 			dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
831 				 vsi->seid, vsi->uplink_seid);
832 		else
833 			dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
834 
835 	} else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
836 		cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
837 		if (cnt != 1) {
838 			dev_info(&pf->pdev->dev,
839 				 "del vsi: bad command string, cnt=%d\n",
840 				 cnt);
841 			goto command_write_done;
842 		}
843 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
844 		if (!vsi) {
845 			dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
846 				 vsi_seid);
847 			goto command_write_done;
848 		}
849 
850 		dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
851 		i40e_vsi_release(vsi);
852 
853 	} else if (strncmp(cmd_buf, "add relay", 9) == 0) {
854 		struct i40e_veb *veb;
855 		int uplink_seid, i;
856 
857 		cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
858 		if (cnt != 2) {
859 			dev_info(&pf->pdev->dev,
860 				 "add relay: bad command string, cnt=%d\n",
861 				 cnt);
862 			goto command_write_done;
863 		} else if (uplink_seid < 0) {
864 			dev_info(&pf->pdev->dev,
865 				 "add relay %d: bad uplink seid\n",
866 				 uplink_seid);
867 			goto command_write_done;
868 		}
869 
870 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
871 		if (!vsi) {
872 			dev_info(&pf->pdev->dev,
873 				 "add relay: VSI %d not found\n", vsi_seid);
874 			goto command_write_done;
875 		}
876 
877 		for (i = 0; i < I40E_MAX_VEB; i++)
878 			if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
879 				break;
880 		if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
881 		    uplink_seid != pf->mac_seid) {
882 			dev_info(&pf->pdev->dev,
883 				 "add relay: relay uplink %d not found\n",
884 				 uplink_seid);
885 			goto command_write_done;
886 		}
887 
888 		veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
889 				     vsi->tc_config.enabled_tc);
890 		if (veb)
891 			dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
892 		else
893 			dev_info(&pf->pdev->dev, "add relay failed\n");
894 
895 	} else if (strncmp(cmd_buf, "del relay", 9) == 0) {
896 		int i;
897 		cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
898 		if (cnt != 1) {
899 			dev_info(&pf->pdev->dev,
900 				 "del relay: bad command string, cnt=%d\n",
901 				 cnt);
902 			goto command_write_done;
903 		} else if (veb_seid < 0) {
904 			dev_info(&pf->pdev->dev,
905 				 "del relay %d: bad relay seid\n", veb_seid);
906 			goto command_write_done;
907 		}
908 
909 		/* find the veb */
910 		for (i = 0; i < I40E_MAX_VEB; i++)
911 			if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
912 				break;
913 		if (i >= I40E_MAX_VEB) {
914 			dev_info(&pf->pdev->dev,
915 				 "del relay: relay %d not found\n", veb_seid);
916 			goto command_write_done;
917 		}
918 
919 		dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
920 		i40e_veb_release(pf->veb[i]);
921 	} else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
922 		unsigned int v;
923 		int ret;
924 		u16 vid;
925 
926 		cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
927 		if (cnt != 2) {
928 			dev_info(&pf->pdev->dev,
929 				 "add pvid: bad command string, cnt=%d\n", cnt);
930 			goto command_write_done;
931 		}
932 
933 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
934 		if (!vsi) {
935 			dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
936 				 vsi_seid);
937 			goto command_write_done;
938 		}
939 
940 		vid = v;
941 		ret = i40e_vsi_add_pvid(vsi, vid);
942 		if (!ret)
943 			dev_info(&pf->pdev->dev,
944 				 "add pvid: %d added to VSI %d\n",
945 				 vid, vsi_seid);
946 		else
947 			dev_info(&pf->pdev->dev,
948 				 "add pvid: %d to VSI %d failed, ret=%d\n",
949 				 vid, vsi_seid, ret);
950 
951 	} else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
952 
953 		cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
954 		if (cnt != 1) {
955 			dev_info(&pf->pdev->dev,
956 				 "del pvid: bad command string, cnt=%d\n",
957 				 cnt);
958 			goto command_write_done;
959 		}
960 
961 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
962 		if (!vsi) {
963 			dev_info(&pf->pdev->dev,
964 				 "del pvid: VSI %d not found\n", vsi_seid);
965 			goto command_write_done;
966 		}
967 
968 		i40e_vsi_remove_pvid(vsi);
969 		dev_info(&pf->pdev->dev,
970 			 "del pvid: removed from VSI %d\n", vsi_seid);
971 
972 	} else if (strncmp(cmd_buf, "dump", 4) == 0) {
973 		if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
974 			i40e_fetch_switch_configuration(pf, true);
975 		} else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
976 			cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
977 			if (cnt > 0)
978 				i40e_dbg_dump_vsi_seid(pf, vsi_seid);
979 			else
980 				i40e_dbg_dump_vsi_no_seid(pf);
981 		} else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
982 			cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
983 			if (cnt > 0)
984 				i40e_dbg_dump_veb_seid(pf, vsi_seid);
985 			else
986 				i40e_dbg_dump_veb_all(pf);
987 		} else if (strncmp(&cmd_buf[5], "vf", 2) == 0) {
988 			cnt = sscanf(&cmd_buf[7], "%i", &vf_id);
989 			if (cnt > 0)
990 				i40e_dbg_dump_vf(pf, vf_id);
991 			else
992 				i40e_dbg_dump_vf_all(pf);
993 		} else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
994 			int ring_id, desc_n;
995 			if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
996 				cnt = sscanf(&cmd_buf[12], "%i %i %i",
997 					     &vsi_seid, &ring_id, &desc_n);
998 				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
999 						   desc_n, pf, RING_TYPE_RX);
1000 			} else if (strncmp(&cmd_buf[10], "tx", 2)
1001 					== 0) {
1002 				cnt = sscanf(&cmd_buf[12], "%i %i %i",
1003 					     &vsi_seid, &ring_id, &desc_n);
1004 				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1005 						   desc_n, pf, RING_TYPE_TX);
1006 			} else if (strncmp(&cmd_buf[10], "xdp", 3)
1007 					== 0) {
1008 				cnt = sscanf(&cmd_buf[13], "%i %i %i",
1009 					     &vsi_seid, &ring_id, &desc_n);
1010 				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1011 						   desc_n, pf, RING_TYPE_XDP);
1012 			} else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1013 				i40e_dbg_dump_aq_desc(pf);
1014 			} else {
1015 				dev_info(&pf->pdev->dev,
1016 					 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1017 				dev_info(&pf->pdev->dev,
1018 					 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1019 				dev_info(&pf->pdev->dev,
1020 					 "dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1021 				dev_info(&pf->pdev->dev, "dump desc aq\n");
1022 			}
1023 		} else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1024 			dev_info(&pf->pdev->dev,
1025 				 "core reset count: %d\n", pf->corer_count);
1026 			dev_info(&pf->pdev->dev,
1027 				 "global reset count: %d\n", pf->globr_count);
1028 			dev_info(&pf->pdev->dev,
1029 				 "emp reset count: %d\n", pf->empr_count);
1030 			dev_info(&pf->pdev->dev,
1031 				 "pf reset count: %d\n", pf->pfr_count);
1032 			dev_info(&pf->pdev->dev,
1033 				 "pf tx sluggish count: %d\n",
1034 				 pf->tx_sluggish_count);
1035 		} else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1036 			struct i40e_aqc_query_port_ets_config_resp *bw_data;
1037 			struct i40e_dcbx_config *cfg =
1038 						&pf->hw.local_dcbx_config;
1039 			struct i40e_dcbx_config *r_cfg =
1040 						&pf->hw.remote_dcbx_config;
1041 			int i, ret;
1042 			u16 switch_id;
1043 
1044 			bw_data = kzalloc(sizeof(
1045 				    struct i40e_aqc_query_port_ets_config_resp),
1046 					  GFP_KERNEL);
1047 			if (!bw_data) {
1048 				ret = -ENOMEM;
1049 				goto command_write_done;
1050 			}
1051 
1052 			vsi = pf->vsi[pf->lan_vsi];
1053 			switch_id =
1054 				le16_to_cpu(vsi->info.switch_id) &
1055 					    I40E_AQ_VSI_SW_ID_MASK;
1056 
1057 			ret = i40e_aq_query_port_ets_config(&pf->hw,
1058 							    switch_id,
1059 							    bw_data, NULL);
1060 			if (ret) {
1061 				dev_info(&pf->pdev->dev,
1062 					 "Query Port ETS Config AQ command failed =0x%x\n",
1063 					 pf->hw.aq.asq_last_status);
1064 				kfree(bw_data);
1065 				bw_data = NULL;
1066 				goto command_write_done;
1067 			}
1068 			dev_info(&pf->pdev->dev,
1069 				 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1070 				 bw_data->tc_valid_bits,
1071 				 bw_data->tc_strict_priority_bits,
1072 				 le16_to_cpu(bw_data->tc_bw_max[0]),
1073 				 le16_to_cpu(bw_data->tc_bw_max[1]));
1074 			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1075 				dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1076 					 bw_data->tc_bw_share_credits[i],
1077 					 le16_to_cpu(bw_data->tc_bw_limits[i]));
1078 			}
1079 
1080 			kfree(bw_data);
1081 			bw_data = NULL;
1082 
1083 			dev_info(&pf->pdev->dev,
1084 				 "port dcbx_mode=%d\n", cfg->dcbx_mode);
1085 			dev_info(&pf->pdev->dev,
1086 				 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1087 				 cfg->etscfg.willing, cfg->etscfg.cbs,
1088 				 cfg->etscfg.maxtcs);
1089 			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1090 				dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1091 					 i, cfg->etscfg.prioritytable[i],
1092 					 cfg->etscfg.tcbwtable[i],
1093 					 cfg->etscfg.tsatable[i]);
1094 			}
1095 			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1096 				dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1097 					 i, cfg->etsrec.prioritytable[i],
1098 					 cfg->etsrec.tcbwtable[i],
1099 					 cfg->etsrec.tsatable[i]);
1100 			}
1101 			dev_info(&pf->pdev->dev,
1102 				 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1103 				 cfg->pfc.willing, cfg->pfc.mbc,
1104 				 cfg->pfc.pfccap, cfg->pfc.pfcenable);
1105 			dev_info(&pf->pdev->dev,
1106 				 "port app_table: num_apps=%d\n", cfg->numapps);
1107 			for (i = 0; i < cfg->numapps; i++) {
1108 				dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1109 					 i, cfg->app[i].priority,
1110 					 cfg->app[i].selector,
1111 					 cfg->app[i].protocolid);
1112 			}
1113 			/* Peer TLV DCBX data */
1114 			dev_info(&pf->pdev->dev,
1115 				 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1116 				 r_cfg->etscfg.willing,
1117 				 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1118 			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1119 				dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1120 					 i, r_cfg->etscfg.prioritytable[i],
1121 					 r_cfg->etscfg.tcbwtable[i],
1122 					 r_cfg->etscfg.tsatable[i]);
1123 			}
1124 			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1125 				dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1126 					 i, r_cfg->etsrec.prioritytable[i],
1127 					 r_cfg->etsrec.tcbwtable[i],
1128 					 r_cfg->etsrec.tsatable[i]);
1129 			}
1130 			dev_info(&pf->pdev->dev,
1131 				 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1132 				 r_cfg->pfc.willing,
1133 				 r_cfg->pfc.mbc,
1134 				 r_cfg->pfc.pfccap,
1135 				 r_cfg->pfc.pfcenable);
1136 			dev_info(&pf->pdev->dev,
1137 				 "remote port app_table: num_apps=%d\n",
1138 				 r_cfg->numapps);
1139 			for (i = 0; i < r_cfg->numapps; i++) {
1140 				dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1141 					 i, r_cfg->app[i].priority,
1142 					 r_cfg->app[i].selector,
1143 					 r_cfg->app[i].protocolid);
1144 			}
1145 		} else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1146 			int cluster_id, table_id;
1147 			int index, ret;
1148 			u16 buff_len = 4096;
1149 			u32 next_index;
1150 			u8 next_table;
1151 			u8 *buff;
1152 			u16 rlen;
1153 
1154 			cnt = sscanf(&cmd_buf[18], "%i %i %i",
1155 				     &cluster_id, &table_id, &index);
1156 			if (cnt != 3) {
1157 				dev_info(&pf->pdev->dev,
1158 					 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1159 				goto command_write_done;
1160 			}
1161 
1162 			dev_info(&pf->pdev->dev,
1163 				 "AQ debug dump fwdata params %x %x %x %x\n",
1164 				 cluster_id, table_id, index, buff_len);
1165 			buff = kzalloc(buff_len, GFP_KERNEL);
1166 			if (!buff)
1167 				goto command_write_done;
1168 
1169 			ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1170 						 index, buff_len, buff, &rlen,
1171 						 &next_table, &next_index,
1172 						 NULL);
1173 			if (ret) {
1174 				dev_info(&pf->pdev->dev,
1175 					 "debug dump fwdata AQ Failed %d 0x%x\n",
1176 					 ret, pf->hw.aq.asq_last_status);
1177 				kfree(buff);
1178 				buff = NULL;
1179 				goto command_write_done;
1180 			}
1181 			dev_info(&pf->pdev->dev,
1182 				 "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1183 				 rlen, next_table, next_index);
1184 			print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1185 				       DUMP_PREFIX_OFFSET, 16, 1,
1186 				       buff, rlen, true);
1187 			kfree(buff);
1188 			buff = NULL;
1189 		} else {
1190 			dev_info(&pf->pdev->dev,
1191 				 "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");
1192 			dev_info(&pf->pdev->dev, "dump switch\n");
1193 			dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1194 			dev_info(&pf->pdev->dev, "dump reset stats\n");
1195 			dev_info(&pf->pdev->dev, "dump port\n");
1196 			dev_info(&pf->pdev->dev, "dump vf [vf_id]\n");
1197 			dev_info(&pf->pdev->dev,
1198 				 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1199 		}
1200 	} else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1201 		dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1202 		i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1203 
1204 	} else if (strncmp(cmd_buf, "corer", 5) == 0) {
1205 		dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1206 		i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1207 
1208 	} else if (strncmp(cmd_buf, "globr", 5) == 0) {
1209 		dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1210 		i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1211 
1212 	} else if (strncmp(cmd_buf, "read", 4) == 0) {
1213 		u32 address;
1214 		u32 value;
1215 
1216 		cnt = sscanf(&cmd_buf[4], "%i", &address);
1217 		if (cnt != 1) {
1218 			dev_info(&pf->pdev->dev, "read <reg>\n");
1219 			goto command_write_done;
1220 		}
1221 
1222 		/* check the range on address */
1223 		if (address > (pf->ioremap_len - sizeof(u32))) {
1224 			dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
1225 				 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1226 			goto command_write_done;
1227 		}
1228 
1229 		value = rd32(&pf->hw, address);
1230 		dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1231 			 address, value);
1232 
1233 	} else if (strncmp(cmd_buf, "write", 5) == 0) {
1234 		u32 address, value;
1235 
1236 		cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1237 		if (cnt != 2) {
1238 			dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1239 			goto command_write_done;
1240 		}
1241 
1242 		/* check the range on address */
1243 		if (address > (pf->ioremap_len - sizeof(u32))) {
1244 			dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
1245 				 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1246 			goto command_write_done;
1247 		}
1248 		wr32(&pf->hw, address, value);
1249 		value = rd32(&pf->hw, address);
1250 		dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1251 			 address, value);
1252 	} else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1253 		if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1254 			cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1255 			if (cnt == 0) {
1256 				int i;
1257 
1258 				for (i = 0; i < pf->num_alloc_vsi; i++)
1259 					i40e_vsi_reset_stats(pf->vsi[i]);
1260 				dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1261 			} else if (cnt == 1) {
1262 				vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1263 				if (!vsi) {
1264 					dev_info(&pf->pdev->dev,
1265 						 "clear_stats vsi: bad vsi %d\n",
1266 						 vsi_seid);
1267 					goto command_write_done;
1268 				}
1269 				i40e_vsi_reset_stats(vsi);
1270 				dev_info(&pf->pdev->dev,
1271 					 "vsi clear stats called for vsi %d\n",
1272 					 vsi_seid);
1273 			} else {
1274 				dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1275 			}
1276 		} else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1277 			if (pf->hw.partition_id == 1) {
1278 				i40e_pf_reset_stats(pf);
1279 				dev_info(&pf->pdev->dev, "port stats cleared\n");
1280 			} else {
1281 				dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1282 			}
1283 		} else {
1284 			dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1285 		}
1286 	} else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1287 		struct i40e_aq_desc *desc;
1288 		int ret;
1289 
1290 		desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1291 		if (!desc)
1292 			goto command_write_done;
1293 		cnt = sscanf(&cmd_buf[11],
1294 			     "%hi %hi %hi %hi %i %i %i %i %i %i",
1295 			     &desc->flags,
1296 			     &desc->opcode, &desc->datalen, &desc->retval,
1297 			     &desc->cookie_high, &desc->cookie_low,
1298 			     &desc->params.internal.param0,
1299 			     &desc->params.internal.param1,
1300 			     &desc->params.internal.param2,
1301 			     &desc->params.internal.param3);
1302 		if (cnt != 10) {
1303 			dev_info(&pf->pdev->dev,
1304 				 "send aq_cmd: bad command string, cnt=%d\n",
1305 				 cnt);
1306 			kfree(desc);
1307 			desc = NULL;
1308 			goto command_write_done;
1309 		}
1310 		ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1311 		if (!ret) {
1312 			dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1313 		} else if (ret == -EIO) {
1314 			dev_info(&pf->pdev->dev,
1315 				 "AQ command send failed Opcode %x AQ Error: %d\n",
1316 				 desc->opcode, pf->hw.aq.asq_last_status);
1317 		} else {
1318 			dev_info(&pf->pdev->dev,
1319 				 "AQ command send failed Opcode %x Status: %d\n",
1320 				 desc->opcode, ret);
1321 		}
1322 		dev_info(&pf->pdev->dev,
1323 			 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1324 			 desc->flags, desc->opcode, desc->datalen, desc->retval,
1325 			 desc->cookie_high, desc->cookie_low,
1326 			 desc->params.internal.param0,
1327 			 desc->params.internal.param1,
1328 			 desc->params.internal.param2,
1329 			 desc->params.internal.param3);
1330 		kfree(desc);
1331 		desc = NULL;
1332 	} else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1333 		struct i40e_aq_desc *desc;
1334 		u16 buffer_len;
1335 		u8 *buff;
1336 		int ret;
1337 
1338 		desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1339 		if (!desc)
1340 			goto command_write_done;
1341 		cnt = sscanf(&cmd_buf[20],
1342 			     "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1343 			     &desc->flags,
1344 			     &desc->opcode, &desc->datalen, &desc->retval,
1345 			     &desc->cookie_high, &desc->cookie_low,
1346 			     &desc->params.internal.param0,
1347 			     &desc->params.internal.param1,
1348 			     &desc->params.internal.param2,
1349 			     &desc->params.internal.param3,
1350 			     &buffer_len);
1351 		if (cnt != 11) {
1352 			dev_info(&pf->pdev->dev,
1353 				 "send indirect aq_cmd: bad command string, cnt=%d\n",
1354 				 cnt);
1355 			kfree(desc);
1356 			desc = NULL;
1357 			goto command_write_done;
1358 		}
1359 		/* Just stub a buffer big enough in case user messed up */
1360 		if (buffer_len == 0)
1361 			buffer_len = 1280;
1362 
1363 		buff = kzalloc(buffer_len, GFP_KERNEL);
1364 		if (!buff) {
1365 			kfree(desc);
1366 			desc = NULL;
1367 			goto command_write_done;
1368 		}
1369 		desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1370 		ret = i40e_asq_send_command(&pf->hw, desc, buff,
1371 					    buffer_len, NULL);
1372 		if (!ret) {
1373 			dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1374 		} else if (ret == -EIO) {
1375 			dev_info(&pf->pdev->dev,
1376 				 "AQ command send failed Opcode %x AQ Error: %d\n",
1377 				 desc->opcode, pf->hw.aq.asq_last_status);
1378 		} else {
1379 			dev_info(&pf->pdev->dev,
1380 				 "AQ command send failed Opcode %x Status: %d\n",
1381 				 desc->opcode, ret);
1382 		}
1383 		dev_info(&pf->pdev->dev,
1384 			 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1385 			 desc->flags, desc->opcode, desc->datalen, desc->retval,
1386 			 desc->cookie_high, desc->cookie_low,
1387 			 desc->params.internal.param0,
1388 			 desc->params.internal.param1,
1389 			 desc->params.internal.param2,
1390 			 desc->params.internal.param3);
1391 		print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1392 			       DUMP_PREFIX_OFFSET, 16, 1,
1393 			       buff, buffer_len, true);
1394 		kfree(buff);
1395 		buff = NULL;
1396 		kfree(desc);
1397 		desc = NULL;
1398 	} else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1399 		dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1400 			 i40e_get_current_fd_count(pf));
1401 	} else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1402 		if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1403 			int ret;
1404 
1405 			ret = i40e_aq_stop_lldp(&pf->hw, false, false, NULL);
1406 			if (ret) {
1407 				dev_info(&pf->pdev->dev,
1408 					 "Stop LLDP AQ command failed =0x%x\n",
1409 					 pf->hw.aq.asq_last_status);
1410 				goto command_write_done;
1411 			}
1412 			ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1413 						pf->hw.mac.addr,
1414 						ETH_P_LLDP, 0,
1415 						pf->vsi[pf->lan_vsi]->seid,
1416 						0, true, NULL, NULL);
1417 			if (ret) {
1418 				dev_info(&pf->pdev->dev,
1419 					"%s: Add Control Packet Filter AQ command failed =0x%x\n",
1420 					__func__, pf->hw.aq.asq_last_status);
1421 				goto command_write_done;
1422 			}
1423 #ifdef CONFIG_I40E_DCB
1424 			pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1425 				       DCB_CAP_DCBX_VER_IEEE;
1426 #endif /* CONFIG_I40E_DCB */
1427 		} else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1428 			int ret;
1429 
1430 			ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1431 						pf->hw.mac.addr,
1432 						ETH_P_LLDP, 0,
1433 						pf->vsi[pf->lan_vsi]->seid,
1434 						0, false, NULL, NULL);
1435 			if (ret) {
1436 				dev_info(&pf->pdev->dev,
1437 					"%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1438 					__func__, pf->hw.aq.asq_last_status);
1439 				/* Continue and start FW LLDP anyways */
1440 			}
1441 
1442 			ret = i40e_aq_start_lldp(&pf->hw, false, NULL);
1443 			if (ret) {
1444 				dev_info(&pf->pdev->dev,
1445 					 "Start LLDP AQ command failed =0x%x\n",
1446 					 pf->hw.aq.asq_last_status);
1447 				goto command_write_done;
1448 			}
1449 #ifdef CONFIG_I40E_DCB
1450 			pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1451 				       DCB_CAP_DCBX_VER_IEEE;
1452 #endif /* CONFIG_I40E_DCB */
1453 		} else if (strncmp(&cmd_buf[5],
1454 			   "get local", 9) == 0) {
1455 			u16 llen, rlen;
1456 			int ret;
1457 			u8 *buff;
1458 
1459 			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1460 			if (!buff)
1461 				goto command_write_done;
1462 
1463 			ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1464 						   I40E_AQ_LLDP_MIB_LOCAL,
1465 						   buff, I40E_LLDPDU_SIZE,
1466 						   &llen, &rlen, NULL);
1467 			if (ret) {
1468 				dev_info(&pf->pdev->dev,
1469 					 "Get LLDP MIB (local) AQ command failed =0x%x\n",
1470 					 pf->hw.aq.asq_last_status);
1471 				kfree(buff);
1472 				buff = NULL;
1473 				goto command_write_done;
1474 			}
1475 			dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1476 			print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1477 				       DUMP_PREFIX_OFFSET, 16, 1,
1478 				       buff, I40E_LLDPDU_SIZE, true);
1479 			kfree(buff);
1480 			buff = NULL;
1481 		} else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1482 			u16 llen, rlen;
1483 			int ret;
1484 			u8 *buff;
1485 
1486 			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1487 			if (!buff)
1488 				goto command_write_done;
1489 
1490 			ret = i40e_aq_get_lldp_mib(&pf->hw,
1491 					I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1492 					I40E_AQ_LLDP_MIB_REMOTE,
1493 					buff, I40E_LLDPDU_SIZE,
1494 					&llen, &rlen, NULL);
1495 			if (ret) {
1496 				dev_info(&pf->pdev->dev,
1497 					 "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1498 					 pf->hw.aq.asq_last_status);
1499 				kfree(buff);
1500 				buff = NULL;
1501 				goto command_write_done;
1502 			}
1503 			dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1504 			print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1505 				       DUMP_PREFIX_OFFSET, 16, 1,
1506 				       buff, I40E_LLDPDU_SIZE, true);
1507 			kfree(buff);
1508 			buff = NULL;
1509 		} else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1510 			int ret;
1511 
1512 			ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1513 								true, NULL);
1514 			if (ret) {
1515 				dev_info(&pf->pdev->dev,
1516 					 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1517 					 pf->hw.aq.asq_last_status);
1518 				goto command_write_done;
1519 			}
1520 		} else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1521 			int ret;
1522 
1523 			ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1524 								false, NULL);
1525 			if (ret) {
1526 				dev_info(&pf->pdev->dev,
1527 					 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1528 					 pf->hw.aq.asq_last_status);
1529 				goto command_write_done;
1530 			}
1531 		}
1532 	} else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1533 		u16 buffer_len, bytes;
1534 		u16 module;
1535 		u32 offset;
1536 		u16 *buff;
1537 		int ret;
1538 
1539 		cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1540 			     &module, &offset, &buffer_len);
1541 		if (cnt == 0) {
1542 			module = 0;
1543 			offset = 0;
1544 			buffer_len = 0;
1545 		} else if (cnt == 1) {
1546 			offset = 0;
1547 			buffer_len = 0;
1548 		} else if (cnt == 2) {
1549 			buffer_len = 0;
1550 		} else if (cnt > 3) {
1551 			dev_info(&pf->pdev->dev,
1552 				 "nvm read: bad command string, cnt=%d\n", cnt);
1553 			goto command_write_done;
1554 		}
1555 
1556 		/* set the max length */
1557 		buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1558 
1559 		bytes = 2 * buffer_len;
1560 
1561 		/* read at least 1k bytes, no more than 4kB */
1562 		bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1563 		buff = kzalloc(bytes, GFP_KERNEL);
1564 		if (!buff)
1565 			goto command_write_done;
1566 
1567 		ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1568 		if (ret) {
1569 			dev_info(&pf->pdev->dev,
1570 				 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1571 				 ret, pf->hw.aq.asq_last_status);
1572 			kfree(buff);
1573 			goto command_write_done;
1574 		}
1575 
1576 		ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1577 				       bytes, (u8 *)buff, true, NULL);
1578 		i40e_release_nvm(&pf->hw);
1579 		if (ret) {
1580 			dev_info(&pf->pdev->dev,
1581 				 "Read NVM AQ failed err=%d status=0x%x\n",
1582 				 ret, pf->hw.aq.asq_last_status);
1583 		} else {
1584 			dev_info(&pf->pdev->dev,
1585 				 "Read NVM module=0x%x offset=0x%x words=%d\n",
1586 				 module, offset, buffer_len);
1587 			if (bytes)
1588 				print_hex_dump(KERN_INFO, "NVM Dump: ",
1589 					DUMP_PREFIX_OFFSET, 16, 2,
1590 					buff, bytes, true);
1591 		}
1592 		kfree(buff);
1593 		buff = NULL;
1594 	} else {
1595 		dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1596 		dev_info(&pf->pdev->dev, "available commands\n");
1597 		dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1598 		dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1599 		dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1600 		dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1601 		dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1602 		dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1603 		dev_info(&pf->pdev->dev, "  dump switch\n");
1604 		dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1605 		dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1606 		dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1607 		dev_info(&pf->pdev->dev, "  dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1608 		dev_info(&pf->pdev->dev, "  dump desc aq\n");
1609 		dev_info(&pf->pdev->dev, "  dump reset stats\n");
1610 		dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
1611 		dev_info(&pf->pdev->dev, "  read <reg>\n");
1612 		dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1613 		dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1614 		dev_info(&pf->pdev->dev, "  clear_stats port\n");
1615 		dev_info(&pf->pdev->dev, "  pfr\n");
1616 		dev_info(&pf->pdev->dev, "  corer\n");
1617 		dev_info(&pf->pdev->dev, "  globr\n");
1618 		dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1619 		dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1620 		dev_info(&pf->pdev->dev, "  fd current cnt");
1621 		dev_info(&pf->pdev->dev, "  lldp start\n");
1622 		dev_info(&pf->pdev->dev, "  lldp stop\n");
1623 		dev_info(&pf->pdev->dev, "  lldp get local\n");
1624 		dev_info(&pf->pdev->dev, "  lldp get remote\n");
1625 		dev_info(&pf->pdev->dev, "  lldp event on\n");
1626 		dev_info(&pf->pdev->dev, "  lldp event off\n");
1627 		dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1628 	}
1629 
1630 command_write_done:
1631 	kfree(cmd_buf);
1632 	cmd_buf = NULL;
1633 	return count;
1634 }
1635 
1636 static const struct file_operations i40e_dbg_command_fops = {
1637 	.owner = THIS_MODULE,
1638 	.open =  simple_open,
1639 	.read =  i40e_dbg_command_read,
1640 	.write = i40e_dbg_command_write,
1641 };
1642 
1643 /**************************************************************
1644  * netdev_ops
1645  * The netdev_ops entry in debugfs is for giving the driver commands
1646  * to be executed from the netdev operations.
1647  **************************************************************/
1648 static char i40e_dbg_netdev_ops_buf[256] = "";
1649 
1650 /**
1651  * i40e_dbg_netdev_ops_read - read for netdev_ops datum
1652  * @filp: the opened file
1653  * @buffer: where to write the data for the user to read
1654  * @count: the size of the user's buffer
1655  * @ppos: file position offset
1656  **/
1657 static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1658 					size_t count, loff_t *ppos)
1659 {
1660 	struct i40e_pf *pf = filp->private_data;
1661 	int bytes_not_copied;
1662 	int buf_size = 256;
1663 	char *buf;
1664 	int len;
1665 
1666 	/* don't allow partal reads */
1667 	if (*ppos != 0)
1668 		return 0;
1669 	if (count < buf_size)
1670 		return -ENOSPC;
1671 
1672 	buf = kzalloc(buf_size, GFP_KERNEL);
1673 	if (!buf)
1674 		return -ENOSPC;
1675 
1676 	len = snprintf(buf, buf_size, "%s: %s\n",
1677 		       pf->vsi[pf->lan_vsi]->netdev->name,
1678 		       i40e_dbg_netdev_ops_buf);
1679 
1680 	bytes_not_copied = copy_to_user(buffer, buf, len);
1681 	kfree(buf);
1682 
1683 	if (bytes_not_copied)
1684 		return -EFAULT;
1685 
1686 	*ppos = len;
1687 	return len;
1688 }
1689 
1690 /**
1691  * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1692  * @filp: the opened file
1693  * @buffer: where to find the user's data
1694  * @count: the length of the user's data
1695  * @ppos: file position offset
1696  **/
1697 static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1698 					 const char __user *buffer,
1699 					 size_t count, loff_t *ppos)
1700 {
1701 	struct i40e_pf *pf = filp->private_data;
1702 	int bytes_not_copied;
1703 	struct i40e_vsi *vsi;
1704 	char *buf_tmp;
1705 	int vsi_seid;
1706 	int i, cnt;
1707 
1708 	/* don't allow partial writes */
1709 	if (*ppos != 0)
1710 		return 0;
1711 	if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1712 		return -ENOSPC;
1713 
1714 	memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1715 	bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1716 					  buffer, count);
1717 	if (bytes_not_copied)
1718 		return -EFAULT;
1719 	i40e_dbg_netdev_ops_buf[count] = '\0';
1720 
1721 	buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1722 	if (buf_tmp) {
1723 		*buf_tmp = '\0';
1724 		count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1725 	}
1726 
1727 	if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1728 		int mtu;
1729 
1730 		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1731 			     &vsi_seid, &mtu);
1732 		if (cnt != 2) {
1733 			dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1734 			goto netdev_ops_write_done;
1735 		}
1736 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1737 		if (!vsi) {
1738 			dev_info(&pf->pdev->dev,
1739 				 "change_mtu: VSI %d not found\n", vsi_seid);
1740 		} else if (!vsi->netdev) {
1741 			dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
1742 				 vsi_seid);
1743 		} else if (rtnl_trylock()) {
1744 			vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1745 								mtu);
1746 			rtnl_unlock();
1747 			dev_info(&pf->pdev->dev, "change_mtu called\n");
1748 		} else {
1749 			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1750 		}
1751 
1752 	} else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1753 		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1754 		if (cnt != 1) {
1755 			dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1756 			goto netdev_ops_write_done;
1757 		}
1758 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1759 		if (!vsi) {
1760 			dev_info(&pf->pdev->dev,
1761 				 "set_rx_mode: VSI %d not found\n", vsi_seid);
1762 		} else if (!vsi->netdev) {
1763 			dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
1764 				 vsi_seid);
1765 		} else if (rtnl_trylock()) {
1766 			vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1767 			rtnl_unlock();
1768 			dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1769 		} else {
1770 			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1771 		}
1772 
1773 	} else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1774 		cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1775 		if (cnt != 1) {
1776 			dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1777 			goto netdev_ops_write_done;
1778 		}
1779 		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1780 		if (!vsi) {
1781 			dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1782 				 vsi_seid);
1783 		} else if (!vsi->netdev) {
1784 			dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
1785 				 vsi_seid);
1786 		} else {
1787 			for (i = 0; i < vsi->num_q_vectors; i++)
1788 				napi_schedule(&vsi->q_vectors[i]->napi);
1789 			dev_info(&pf->pdev->dev, "napi called\n");
1790 		}
1791 	} else {
1792 		dev_info(&pf->pdev->dev, "unknown command '%s'\n",
1793 			 i40e_dbg_netdev_ops_buf);
1794 		dev_info(&pf->pdev->dev, "available commands\n");
1795 		dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
1796 		dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
1797 		dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
1798 	}
1799 netdev_ops_write_done:
1800 	return count;
1801 }
1802 
1803 static const struct file_operations i40e_dbg_netdev_ops_fops = {
1804 	.owner = THIS_MODULE,
1805 	.open = simple_open,
1806 	.read = i40e_dbg_netdev_ops_read,
1807 	.write = i40e_dbg_netdev_ops_write,
1808 };
1809 
1810 /**
1811  * i40e_dbg_pf_init - setup the debugfs directory for the PF
1812  * @pf: the PF that is starting up
1813  **/
1814 void i40e_dbg_pf_init(struct i40e_pf *pf)
1815 {
1816 	const char *name = pci_name(pf->pdev);
1817 
1818 	pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
1819 
1820 	debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
1821 			    &i40e_dbg_command_fops);
1822 
1823 	debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
1824 			    &i40e_dbg_netdev_ops_fops);
1825 }
1826 
1827 /**
1828  * i40e_dbg_pf_exit - clear out the PF's debugfs entries
1829  * @pf: the PF that is stopping
1830  **/
1831 void i40e_dbg_pf_exit(struct i40e_pf *pf)
1832 {
1833 	debugfs_remove_recursive(pf->i40e_dbg_pf);
1834 	pf->i40e_dbg_pf = NULL;
1835 }
1836 
1837 /**
1838  * i40e_dbg_init - start up debugfs for the driver
1839  **/
1840 void i40e_dbg_init(void)
1841 {
1842 	i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
1843 	if (IS_ERR(i40e_dbg_root))
1844 		pr_info("init of debugfs failed\n");
1845 }
1846 
1847 /**
1848  * i40e_dbg_exit - clean out the driver's debugfs entries
1849  **/
1850 void i40e_dbg_exit(void)
1851 {
1852 	debugfs_remove_recursive(i40e_dbg_root);
1853 	i40e_dbg_root = NULL;
1854 }
1855 
1856 #endif /* CONFIG_DEBUG_FS */
1857