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i40e: Do not accept tagged packets by default
[deliverable/linux.git] / drivers / net / ethernet / intel / i40evf / i40evf_virtchnl.c
CommitLineData
62683ab5
GR		 1/*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver
ef8693eb 4 * Copyright(c) 2013 - 2014 Intel Corporation.
62683ab5
GR		 5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
b831607d
JB		 15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
17 *
62683ab5
GR		 18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
20 *
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 ******************************************************************************/
26
27#include "i40evf.h"
28#include "i40e_prototype.h"
29
30/* busy wait delay in msec */
31#define I40EVF_BUSY_WAIT_DELAY 10
32#define I40EVF_BUSY_WAIT_COUNT 50
33
34/**
35 * i40evf_send_pf_msg
36 * @adapter: adapter structure
37 * @op: virtual channel opcode
38 * @msg: pointer to message buffer
39 * @len: message length
40 *
41 * Send message to PF and print status if failure.
42 **/
43static int i40evf_send_pf_msg(struct i40evf_adapter *adapter,
44 enum i40e_virtchnl_ops op, u8 *msg, u16 len)
45{
46 struct i40e_hw *hw = &adapter->hw;
47 i40e_status err;
48
ef8693eb
MW		 49 if (adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED)
50 return 0; /* nothing to see here, move along */
51
62683ab5
GR		 52 err = i40e_aq_send_msg_to_pf(hw, op, 0, msg, len, NULL);
53 if (err)
54 dev_err(&adapter->pdev->dev, "Unable to send opcode %d to PF, error %d, aq status %d\n",
55 op, err, hw->aq.asq_last_status);
56 return err;
57}
58
59/**
60 * i40evf_send_api_ver
61 * @adapter: adapter structure
62 *
63 * Send API version admin queue message to the PF. The reply is not checked
64 * in this function. Returns 0 if the message was successfully
65 * sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not.
66 **/
67int i40evf_send_api_ver(struct i40evf_adapter *adapter)
68{
69 struct i40e_virtchnl_version_info vvi;
70
71 vvi.major = I40E_VIRTCHNL_VERSION_MAJOR;
72 vvi.minor = I40E_VIRTCHNL_VERSION_MINOR;
73
74 return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_VERSION, (u8 *)&vvi,
75 sizeof(vvi));
76}
77
78/**
79 * i40evf_verify_api_ver
80 * @adapter: adapter structure
81 *
82 * Compare API versions with the PF. Must be called after admin queue is
83 * initialized. Returns 0 if API versions match, -EIO if
84 * they do not, or I40E_ERR_ADMIN_QUEUE_NO_WORK if the admin queue is empty.
85 **/
86int i40evf_verify_api_ver(struct i40evf_adapter *adapter)
87{
88 struct i40e_virtchnl_version_info *pf_vvi;
89 struct i40e_hw *hw = &adapter->hw;
90 struct i40e_arq_event_info event;
91 i40e_status err;
92
93 event.msg_size = I40EVF_MAX_AQ_BUF_SIZE;
94 event.msg_buf = kzalloc(event.msg_size, GFP_KERNEL);
95 if (!event.msg_buf) {
96 err = -ENOMEM;
97 goto out;
98 }
99
100 err = i40evf_clean_arq_element(hw, &event, NULL);
101 if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK)
102 goto out_alloc;
103
104 err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
105 if (err) {
106 err = -EIO;
107 goto out_alloc;
108 }
109
110 if ((enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high) !=
111 I40E_VIRTCHNL_OP_VERSION) {
112 err = -EIO;
113 goto out_alloc;
114 }
115
116 pf_vvi = (struct i40e_virtchnl_version_info *)event.msg_buf;
117 if ((pf_vvi->major != I40E_VIRTCHNL_VERSION_MAJOR) ||
118 (pf_vvi->minor != I40E_VIRTCHNL_VERSION_MINOR))
119 err = -EIO;
120
121out_alloc:
122 kfree(event.msg_buf);
123out:
124 return err;
125}
126
127/**
128 * i40evf_send_vf_config_msg
129 * @adapter: adapter structure
130 *
131 * Send VF configuration request admin queue message to the PF. The reply
132 * is not checked in this function. Returns 0 if the message was
133 * successfully sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not.
134 **/
135int i40evf_send_vf_config_msg(struct i40evf_adapter *adapter)
136{
137 return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
138 NULL, 0);
139}
140
141/**
142 * i40evf_get_vf_config
143 * @hw: pointer to the hardware structure
144 * @len: length of buffer
145 *
146 * Get VF configuration from PF and populate hw structure. Must be called after
147 * admin queue is initialized. Busy waits until response is received from PF,
148 * with maximum timeout. Response from PF is returned in the buffer for further
149 * processing by the caller.
150 **/
151int i40evf_get_vf_config(struct i40evf_adapter *adapter)
152{
153 struct i40e_hw *hw = &adapter->hw;
154 struct i40e_arq_event_info event;
155 u16 len;
156 i40e_status err;
157
158 len = sizeof(struct i40e_virtchnl_vf_resource) +
159 I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource);
160 event.msg_size = len;
161 event.msg_buf = kzalloc(event.msg_size, GFP_KERNEL);
162 if (!event.msg_buf) {
163 err = -ENOMEM;
164 goto out;
165 }
166
167 err = i40evf_clean_arq_element(hw, &event, NULL);
168 if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK)
169 goto out_alloc;
170
171 err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
172 if (err) {
173 dev_err(&adapter->pdev->dev,
174 "%s: Error returned from PF, %d, %d\n", __func__,
175 le32_to_cpu(event.desc.cookie_high),
176 le32_to_cpu(event.desc.cookie_low));
177 err = -EIO;
178 goto out_alloc;
179 }
180
181 if ((enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high) !=
182 I40E_VIRTCHNL_OP_GET_VF_RESOURCES) {
183 dev_err(&adapter->pdev->dev,
184 "%s: Invalid response from PF, %d, %d\n", __func__,
185 le32_to_cpu(event.desc.cookie_high),
186 le32_to_cpu(event.desc.cookie_low));
187 err = -EIO;
188 goto out_alloc;
189 }
190 memcpy(adapter->vf_res, event.msg_buf, min(event.msg_size, len));
191
192 i40e_vf_parse_hw_config(hw, adapter->vf_res);
193out_alloc:
194 kfree(event.msg_buf);
195out:
196 return err;
197}
198
199/**
200 * i40evf_configure_queues
201 * @adapter: adapter structure
202 *
203 * Request that the PF set up our (previously allocated) queues.
204 **/
205void i40evf_configure_queues(struct i40evf_adapter *adapter)
206{
207 struct i40e_virtchnl_vsi_queue_config_info *vqci;
208 struct i40e_virtchnl_queue_pair_info *vqpi;
209 int pairs = adapter->vsi_res->num_queue_pairs;
210 int i, len;
211
212 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
213 /* bail because we already have a command pending */
214 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
215 __func__, adapter->current_op);
216 return;
217 }
218 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES;
219 len = sizeof(struct i40e_virtchnl_vsi_queue_config_info) +
220 (sizeof(struct i40e_virtchnl_queue_pair_info) * pairs);
221 vqci = kzalloc(len, GFP_ATOMIC);
249c8b8d 222 if (!vqci)
62683ab5 223 return;
249c8b8d 224
62683ab5
GR		 225 vqci->vsi_id = adapter->vsi_res->vsi_id;
226 vqci->num_queue_pairs = pairs;
227 vqpi = vqci->qpair;
228 /* Size check is not needed here - HW max is 16 queue pairs, and we
229 * can fit info for 31 of them into the AQ buffer before it overflows.
230 */
231 for (i = 0; i < pairs; i++) {
232 vqpi->txq.vsi_id = vqci->vsi_id;
233 vqpi->txq.queue_id = i;
234 vqpi->txq.ring_len = adapter->tx_rings[i]->count;
235 vqpi->txq.dma_ring_addr = adapter->tx_rings[i]->dma;
5d29896a
AS		 236 vqpi->txq.headwb_enabled = 1;
237 vqpi->txq.dma_headwb_addr = vqpi->txq.dma_ring_addr +
238 (vqpi->txq.ring_len * sizeof(struct i40e_tx_desc));
62683ab5
GR		 239
240 vqpi->rxq.vsi_id = vqci->vsi_id;
241 vqpi->rxq.queue_id = i;
242 vqpi->rxq.ring_len = adapter->rx_rings[i]->count;
243 vqpi->rxq.dma_ring_addr = adapter->rx_rings[i]->dma;
244 vqpi->rxq.max_pkt_size = adapter->netdev->mtu
245 + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN;
246 vqpi->rxq.databuffer_size = adapter->rx_rings[i]->rx_buf_len;
247 vqpi++;
248 }
249
250 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
251 (u8 *)vqci, len);
252 kfree(vqci);
253 adapter->aq_pending |= I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
254 adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
255}
256
257/**
258 * i40evf_enable_queues
259 * @adapter: adapter structure
260 *
261 * Request that the PF enable all of our queues.
262 **/
263void i40evf_enable_queues(struct i40evf_adapter *adapter)
264{
265 struct i40e_virtchnl_queue_select vqs;
266
267 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
268 /* bail because we already have a command pending */
269 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
270 __func__, adapter->current_op);
271 return;
272 }
273 adapter->current_op = I40E_VIRTCHNL_OP_ENABLE_QUEUES;
274 vqs.vsi_id = adapter->vsi_res->vsi_id;
275 vqs.tx_queues = (1 << adapter->vsi_res->num_queue_pairs) - 1;
276 vqs.rx_queues = vqs.tx_queues;
277 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
278 (u8 *)&vqs, sizeof(vqs));
279 adapter->aq_pending |= I40EVF_FLAG_AQ_ENABLE_QUEUES;
280 adapter->aq_required &= ~I40EVF_FLAG_AQ_ENABLE_QUEUES;
281}
282
283/**
284 * i40evf_disable_queues
285 * @adapter: adapter structure
286 *
287 * Request that the PF disable all of our queues.
288 **/
289void i40evf_disable_queues(struct i40evf_adapter *adapter)
290{
291 struct i40e_virtchnl_queue_select vqs;
292
293 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
294 /* bail because we already have a command pending */
295 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
296 __func__, adapter->current_op);
297 return;
298 }
299 adapter->current_op = I40E_VIRTCHNL_OP_DISABLE_QUEUES;
300 vqs.vsi_id = adapter->vsi_res->vsi_id;
301 vqs.tx_queues = (1 << adapter->vsi_res->num_queue_pairs) - 1;
302 vqs.rx_queues = vqs.tx_queues;
303 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
304 (u8 *)&vqs, sizeof(vqs));
305 adapter->aq_pending |= I40EVF_FLAG_AQ_DISABLE_QUEUES;
306 adapter->aq_required &= ~I40EVF_FLAG_AQ_DISABLE_QUEUES;
307}
308
309/**
310 * i40evf_map_queues
311 * @adapter: adapter structure
312 *
313 * Request that the PF map queues to interrupt vectors. Misc causes, including
314 * admin queue, are always mapped to vector 0.
315 **/
316void i40evf_map_queues(struct i40evf_adapter *adapter)
317{
318 struct i40e_virtchnl_irq_map_info *vimi;
319 int v_idx, q_vectors, len;
320 struct i40e_q_vector *q_vector;
321
322 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
323 /* bail because we already have a command pending */
324 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
325 __func__, adapter->current_op);
326 return;
327 }
328 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP;
329
330 q_vectors = adapter->num_msix_vectors - NONQ_VECS;
331
332 len = sizeof(struct i40e_virtchnl_irq_map_info) +
333 (adapter->num_msix_vectors *
334 sizeof(struct i40e_virtchnl_vector_map));
335 vimi = kzalloc(len, GFP_ATOMIC);
249c8b8d 336 if (!vimi)
62683ab5 337 return;
62683ab5
GR		 338
339 vimi->num_vectors = adapter->num_msix_vectors;
340 /* Queue vectors first */
341 for (v_idx = 0; v_idx < q_vectors; v_idx++) {
342 q_vector = adapter->q_vector[v_idx];
343 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
344 vimi->vecmap[v_idx].vector_id = v_idx + NONQ_VECS;
345 vimi->vecmap[v_idx].txq_map = q_vector->ring_mask;
346 vimi->vecmap[v_idx].rxq_map = q_vector->ring_mask;
347 }
348 /* Misc vector last - this is only for AdminQ messages */
349 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
350 vimi->vecmap[v_idx].vector_id = 0;
351 vimi->vecmap[v_idx].txq_map = 0;
352 vimi->vecmap[v_idx].rxq_map = 0;
353
354 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
355 (u8 *)vimi, len);
356 kfree(vimi);
357 adapter->aq_pending |= I40EVF_FLAG_AQ_MAP_VECTORS;
358 adapter->aq_required &= ~I40EVF_FLAG_AQ_MAP_VECTORS;
359}
360
361/**
362 * i40evf_add_ether_addrs
363 * @adapter: adapter structure
364 * @addrs: the MAC address filters to add (contiguous)
365 * @count: number of filters
366 *
367 * Request that the PF add one or more addresses to our filters.
368 **/
369void i40evf_add_ether_addrs(struct i40evf_adapter *adapter)
370{
371 struct i40e_virtchnl_ether_addr_list *veal;
372 int len, i = 0, count = 0;
373 struct i40evf_mac_filter *f;
374
375 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
376 /* bail because we already have a command pending */
377 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
378 __func__, adapter->current_op);
379 return;
380 }
381 list_for_each_entry(f, &adapter->mac_filter_list, list) {
382 if (f->add)
383 count++;
384 }
385 if (!count) {
386 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
387 return;
388 }
389 adapter->current_op = I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS;
390
391 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
392 (count * sizeof(struct i40e_virtchnl_ether_addr));
393 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
80e72893 394 dev_warn(&adapter->pdev->dev, "%s: Too many MAC address changes in one request\n",
62683ab5
GR		 395 __func__);
396 count = (I40EVF_MAX_AQ_BUF_SIZE -
397 sizeof(struct i40e_virtchnl_ether_addr_list)) /
398 sizeof(struct i40e_virtchnl_ether_addr);
399 len = I40EVF_MAX_AQ_BUF_SIZE;
400 }
401
402 veal = kzalloc(len, GFP_ATOMIC);
249c8b8d 403 if (!veal)
62683ab5 404 return;
249c8b8d 405
62683ab5
GR		 406 veal->vsi_id = adapter->vsi_res->vsi_id;
407 veal->num_elements = count;
408 list_for_each_entry(f, &adapter->mac_filter_list, list) {
409 if (f->add) {
410 memcpy(veal->list[i].addr, f->macaddr, ETH_ALEN);
411 i++;
412 f->add = false;
413 }
414 }
415 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
416 (u8 *)veal, len);
417 kfree(veal);
418 adapter->aq_pending |= I40EVF_FLAG_AQ_ADD_MAC_FILTER;
419 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
420
421}
422
423/**
424 * i40evf_del_ether_addrs
425 * @adapter: adapter structure
426 * @addrs: the MAC address filters to remove (contiguous)
427 * @count: number of filtes
428 *
429 * Request that the PF remove one or more addresses from our filters.
430 **/
431void i40evf_del_ether_addrs(struct i40evf_adapter *adapter)
432{
433 struct i40e_virtchnl_ether_addr_list *veal;
434 struct i40evf_mac_filter *f, *ftmp;
435 int len, i = 0, count = 0;
436
437 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
438 /* bail because we already have a command pending */
439 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
440 __func__, adapter->current_op);
441 return;
442 }
443 list_for_each_entry(f, &adapter->mac_filter_list, list) {
444 if (f->remove)
445 count++;
446 }
447 if (!count) {
448 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
449 return;
450 }
451 adapter->current_op = I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS;
452
453 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
454 (count * sizeof(struct i40e_virtchnl_ether_addr));
455 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
80e72893 456 dev_warn(&adapter->pdev->dev, "%s: Too many MAC address changes in one request\n",
62683ab5
GR		 457 __func__);
458 count = (I40EVF_MAX_AQ_BUF_SIZE -
459 sizeof(struct i40e_virtchnl_ether_addr_list)) /
460 sizeof(struct i40e_virtchnl_ether_addr);
461 len = I40EVF_MAX_AQ_BUF_SIZE;
462 }
463 veal = kzalloc(len, GFP_ATOMIC);
249c8b8d 464 if (!veal)
62683ab5 465 return;
249c8b8d 466
62683ab5
GR		 467 veal->vsi_id = adapter->vsi_res->vsi_id;
468 veal->num_elements = count;
469 list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
470 if (f->remove) {
471 memcpy(veal->list[i].addr, f->macaddr, ETH_ALEN);
472 i++;
473 list_del(&f->list);
474 kfree(f);
475 }
476 }
477 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
478 (u8 *)veal, len);
479 kfree(veal);
480 adapter->aq_pending |= I40EVF_FLAG_AQ_DEL_MAC_FILTER;
481 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
482}
483
484/**
485 * i40evf_add_vlans
486 * @adapter: adapter structure
487 * @vlans: the VLANs to add
488 * @count: number of VLANs
489 *
490 * Request that the PF add one or more VLAN filters to our VSI.
491 **/
492void i40evf_add_vlans(struct i40evf_adapter *adapter)
493{
494 struct i40e_virtchnl_vlan_filter_list *vvfl;
495 int len, i = 0, count = 0;
496 struct i40evf_vlan_filter *f;
497
498 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
499 /* bail because we already have a command pending */
500 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
501 __func__, adapter->current_op);
502 return;
503 }
504
505 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
506 if (f->add)
507 count++;
508 }
509 if (!count) {
510 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
511 return;
512 }
513 adapter->current_op = I40E_VIRTCHNL_OP_ADD_VLAN;
514
515 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
516 (count * sizeof(u16));
517 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
80e72893 518 dev_warn(&adapter->pdev->dev, "%s: Too many VLAN changes in one request\n",
62683ab5
GR		 519 __func__);
520 count = (I40EVF_MAX_AQ_BUF_SIZE -
521 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
522 sizeof(u16);
523 len = I40EVF_MAX_AQ_BUF_SIZE;
524 }
525 vvfl = kzalloc(len, GFP_ATOMIC);
249c8b8d 526 if (!vvfl)
62683ab5 527 return;
249c8b8d 528
62683ab5
GR		 529 vvfl->vsi_id = adapter->vsi_res->vsi_id;
530 vvfl->num_elements = count;
531 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
532 if (f->add) {
533 vvfl->vlan_id[i] = f->vlan;
534 i++;
535 f->add = false;
536 }
537 }
538 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
539 kfree(vvfl);
540 adapter->aq_pending |= I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
541 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
542}
543
544/**
545 * i40evf_del_vlans
546 * @adapter: adapter structure
547 * @vlans: the VLANs to remove
548 * @count: number of VLANs
549 *
550 * Request that the PF remove one or more VLAN filters from our VSI.
551 **/
552void i40evf_del_vlans(struct i40evf_adapter *adapter)
553{
554 struct i40e_virtchnl_vlan_filter_list *vvfl;
555 struct i40evf_vlan_filter *f, *ftmp;
556 int len, i = 0, count = 0;
557
558 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
559 /* bail because we already have a command pending */
560 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
561 __func__, adapter->current_op);
562 return;
563 }
564
565 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
566 if (f->remove)
567 count++;
568 }
569 if (!count) {
570 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
571 return;
572 }
573 adapter->current_op = I40E_VIRTCHNL_OP_DEL_VLAN;
574
575 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
576 (count * sizeof(u16));
577 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
80e72893 578 dev_warn(&adapter->pdev->dev, "%s: Too many VLAN changes in one request\n",
62683ab5
GR		 579 __func__);
580 count = (I40EVF_MAX_AQ_BUF_SIZE -
581 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
582 sizeof(u16);
583 len = I40EVF_MAX_AQ_BUF_SIZE;
584 }
585 vvfl = kzalloc(len, GFP_ATOMIC);
249c8b8d 586 if (!vvfl)
62683ab5 587 return;
249c8b8d 588
62683ab5
GR		 589 vvfl->vsi_id = adapter->vsi_res->vsi_id;
590 vvfl->num_elements = count;
591 list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
592 if (f->remove) {
593 vvfl->vlan_id[i] = f->vlan;
594 i++;
595 list_del(&f->list);
596 kfree(f);
597 }
598 }
599 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
600 kfree(vvfl);
601 adapter->aq_pending |= I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
602 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
603}
604
605/**
606 * i40evf_set_promiscuous
607 * @adapter: adapter structure
608 * @flags: bitmask to control unicast/multicast promiscuous.
609 *
610 * Request that the PF enable promiscuous mode for our VSI.
611 **/
612void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags)
613{
614 struct i40e_virtchnl_promisc_info vpi;
615
616 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
617 /* bail because we already have a command pending */
618 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
619 __func__, adapter->current_op);
620 return;
621 }
622 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
623 vpi.vsi_id = adapter->vsi_res->vsi_id;
624 vpi.flags = flags;
625 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
626 (u8 *)&vpi, sizeof(vpi));
627}
628
629/**
630 * i40evf_request_stats
631 * @adapter: adapter structure
632 *
633 * Request VSI statistics from PF.
634 **/
635void i40evf_request_stats(struct i40evf_adapter *adapter)
636{
637 struct i40e_virtchnl_queue_select vqs;
638 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
639 /* no error message, this isn't crucial */
640 return;
641 }
642 adapter->current_op = I40E_VIRTCHNL_OP_GET_STATS;
643 vqs.vsi_id = adapter->vsi_res->vsi_id;
644 /* queue maps are ignored for this message - only the vsi is used */
645 if (i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_STATS,
646 (u8 *)&vqs, sizeof(vqs)))
647 /* if the request failed, don't lock out others */
648 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
649}
625777e3
MW		 650/**
651 * i40evf_request_reset
652 * @adapter: adapter structure
653 *
654 * Request that the PF reset this VF. No response is expected.
655 **/
656void i40evf_request_reset(struct i40evf_adapter *adapter)
657{
658 /* Don't check CURRENT_OP - this is always higher priority */
659 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_RESET_VF, NULL, 0);
660 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
661}
62683ab5
GR		 662
663/**
664 * i40evf_virtchnl_completion
665 * @adapter: adapter structure
666 * @v_opcode: opcode sent by PF
667 * @v_retval: retval sent by PF
668 * @msg: message sent by PF
669 * @msglen: message length
670 *
671 * Asynchronous completion function for admin queue messages. Rather than busy
672 * wait, we fire off our requests and assume that no errors will be returned.
673 * This function handles the reply messages.
674 **/
675void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
676 enum i40e_virtchnl_ops v_opcode,
677 i40e_status v_retval,
678 u8 *msg, u16 msglen)
679{
680 struct net_device *netdev = adapter->netdev;
681
682 if (v_opcode == I40E_VIRTCHNL_OP_EVENT) {
683 struct i40e_virtchnl_pf_event *vpe =
684 (struct i40e_virtchnl_pf_event *)msg;
685 switch (vpe->event) {
686 case I40E_VIRTCHNL_EVENT_LINK_CHANGE:
687 adapter->link_up =
688 vpe->event_data.link_event.link_status;
689 if (adapter->link_up && !netif_carrier_ok(netdev)) {
690 dev_info(&adapter->pdev->dev, "NIC Link is Up\n");
691 netif_carrier_on(netdev);
692 netif_tx_wake_all_queues(netdev);
693 } else if (!adapter->link_up) {
694 dev_info(&adapter->pdev->dev, "NIC Link is Down\n");
695 netif_carrier_off(netdev);
696 netif_tx_stop_all_queues(netdev);
697 }
698 break;
699 case I40E_VIRTCHNL_EVENT_RESET_IMPENDING:
ef8693eb
MW		 700 dev_info(&adapter->pdev->dev, "PF reset warning received\n");
701 if (!(adapter->flags & I40EVF_FLAG_RESET_PENDING)) {
702 adapter->flags |= I40EVF_FLAG_RESET_PENDING;
703 dev_info(&adapter->pdev->dev, "Scheduling reset task\n");
704 schedule_work(&adapter->reset_task);
705 }
62683ab5
GR		 706 break;
707 default:
708 dev_err(&adapter->pdev->dev,
709 "%s: Unknown event %d from pf\n",
710 __func__, vpe->event);
711 break;
712
713 }
714 return;
715 }
716 if (v_opcode != adapter->current_op) {
80e72893 717 dev_err(&adapter->pdev->dev, "%s: Pending op is %d, received %d\n",
62683ab5
GR		 718 __func__, adapter->current_op, v_opcode);
719 /* We're probably completely screwed at this point, but clear
720 * the current op and try to carry on....
721 */
722 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
723 return;
724 }
725 if (v_retval) {
80e72893 726 dev_err(&adapter->pdev->dev, "%s: PF returned error %d to our request %d\n",
62683ab5
GR		 727 __func__, v_retval, v_opcode);
728 }
729 switch (v_opcode) {
730 case I40E_VIRTCHNL_OP_GET_STATS: {
731 struct i40e_eth_stats *stats =
732 (struct i40e_eth_stats *)msg;
733 adapter->net_stats.rx_packets = stats->rx_unicast +
734 stats->rx_multicast +
735 stats->rx_broadcast;
736 adapter->net_stats.tx_packets = stats->tx_unicast +
737 stats->tx_multicast +
738 stats->tx_broadcast;
739 adapter->net_stats.rx_bytes = stats->rx_bytes;
740 adapter->net_stats.tx_bytes = stats->tx_bytes;
62683ab5 741 adapter->net_stats.tx_errors = stats->tx_errors;
03da6f6a 742 adapter->net_stats.rx_dropped = stats->rx_discards;
62683ab5
GR		 743 adapter->net_stats.tx_dropped = stats->tx_discards;
744 adapter->current_stats = *stats;
745 }
746 break;
747 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
748 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ADD_MAC_FILTER);
749 break;
750 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
751 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DEL_MAC_FILTER);
752 break;
753 case I40E_VIRTCHNL_OP_ADD_VLAN:
754 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ADD_VLAN_FILTER);
755 break;
756 case I40E_VIRTCHNL_OP_DEL_VLAN:
757 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DEL_VLAN_FILTER);
758 break;
759 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
760 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ENABLE_QUEUES);
761 /* enable transmits */
762 i40evf_irq_enable(adapter, true);
763 netif_tx_start_all_queues(adapter->netdev);
764 netif_carrier_on(adapter->netdev);
765 break;
766 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
767 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DISABLE_QUEUES);
768 break;
769 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
770 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_CONFIGURE_QUEUES);
771 break;
772 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
773 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_MAP_VECTORS);
774 break;
775 default:
80e72893 776 dev_warn(&adapter->pdev->dev, "%s: Received unexpected message %d from PF\n",
62683ab5
GR		 777 __func__, v_opcode);
778 break;
779 } /* switch v_opcode */
780 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
781}
Linux kernel - Deliverables
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