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i40evf: make early init processing more robust
[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
6a8e93db
MW		 83 * initialized. Returns 0 if API versions match, -EIO if they do not,
84 * I40E_ERR_ADMIN_QUEUE_NO_WORK if the admin queue is empty, and any errors
85 * from the firmware are propagated.
62683ab5
GR		 86 **/
87int i40evf_verify_api_ver(struct i40evf_adapter *adapter)
88{
89 struct i40e_virtchnl_version_info *pf_vvi;
90 struct i40e_hw *hw = &adapter->hw;
91 struct i40e_arq_event_info event;
f8d4db35 92 enum i40e_virtchnl_ops op;
62683ab5
GR		 93 i40e_status err;
94
95 event.msg_size = I40EVF_MAX_AQ_BUF_SIZE;
96 event.msg_buf = kzalloc(event.msg_size, GFP_KERNEL);
97 if (!event.msg_buf) {
98 err = -ENOMEM;
99 goto out;
100 }
101
f8d4db35
MW		 102 while (1) {
103 err = i40evf_clean_arq_element(hw, &event, NULL);
104 /* When the AQ is empty, i40evf_clean_arq_element will return
105 * nonzero and this loop will terminate.
106 */
107 if (err)
108 goto out_alloc;
109 op =
110 (enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
111 if (op == I40E_VIRTCHNL_OP_VERSION)
112 break;
113 }
114
62683ab5
GR		 115
116 err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
6a8e93db 117 if (err)
62683ab5 118 goto out_alloc;
62683ab5 119
f8d4db35 120 if (op != I40E_VIRTCHNL_OP_VERSION) {
6a8e93db 121 dev_info(&adapter->pdev->dev, "Invalid reply type %d from PF\n",
f8d4db35 122 op);
62683ab5
GR		 123 err = -EIO;
124 goto out_alloc;
125 }
126
127 pf_vvi = (struct i40e_virtchnl_version_info *)event.msg_buf;
128 if ((pf_vvi->major != I40E_VIRTCHNL_VERSION_MAJOR) ||
129 (pf_vvi->minor != I40E_VIRTCHNL_VERSION_MINOR))
130 err = -EIO;
131
132out_alloc:
133 kfree(event.msg_buf);
134out:
135 return err;
136}
137
138/**
139 * i40evf_send_vf_config_msg
140 * @adapter: adapter structure
141 *
142 * Send VF configuration request admin queue message to the PF. The reply
143 * is not checked in this function. Returns 0 if the message was
144 * successfully sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not.
145 **/
146int i40evf_send_vf_config_msg(struct i40evf_adapter *adapter)
147{
148 return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
149 NULL, 0);
150}
151
152/**
153 * i40evf_get_vf_config
154 * @hw: pointer to the hardware structure
155 * @len: length of buffer
156 *
157 * Get VF configuration from PF and populate hw structure. Must be called after
158 * admin queue is initialized. Busy waits until response is received from PF,
159 * with maximum timeout. Response from PF is returned in the buffer for further
160 * processing by the caller.
161 **/
162int i40evf_get_vf_config(struct i40evf_adapter *adapter)
163{
164 struct i40e_hw *hw = &adapter->hw;
165 struct i40e_arq_event_info event;
f8d4db35 166 enum i40e_virtchnl_ops op;
62683ab5 167 i40e_status err;
f8d4db35 168 u16 len;
62683ab5
GR		 169
170 len = sizeof(struct i40e_virtchnl_vf_resource) +
171 I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource);
172 event.msg_size = len;
173 event.msg_buf = kzalloc(event.msg_size, GFP_KERNEL);
174 if (!event.msg_buf) {
175 err = -ENOMEM;
176 goto out;
177 }
178
f8d4db35
MW		 179 while (1) {
180 event.msg_size = len;
181 /* When the AQ is empty, i40evf_clean_arq_element will return
182 * nonzero and this loop will terminate.
183 */
184 err = i40evf_clean_arq_element(hw, &event, NULL);
185 if (err)
186 goto out_alloc;
187 op =
188 (enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
189 if (op == I40E_VIRTCHNL_OP_GET_VF_RESOURCES)
190 break;
62683ab5
GR		 191 }
192
f8d4db35 193 err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
62683ab5
GR		 194 memcpy(adapter->vf_res, event.msg_buf, min(event.msg_size, len));
195
196 i40e_vf_parse_hw_config(hw, adapter->vf_res);
197out_alloc:
198 kfree(event.msg_buf);
199out:
200 return err;
201}
202
203/**
204 * i40evf_configure_queues
205 * @adapter: adapter structure
206 *
207 * Request that the PF set up our (previously allocated) queues.
208 **/
209void i40evf_configure_queues(struct i40evf_adapter *adapter)
210{
211 struct i40e_virtchnl_vsi_queue_config_info *vqci;
212 struct i40e_virtchnl_queue_pair_info *vqpi;
213 int pairs = adapter->vsi_res->num_queue_pairs;
214 int i, len;
215
216 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
217 /* bail because we already have a command pending */
218 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
219 __func__, adapter->current_op);
220 return;
221 }
222 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES;
223 len = sizeof(struct i40e_virtchnl_vsi_queue_config_info) +
224 (sizeof(struct i40e_virtchnl_queue_pair_info) * pairs);
225 vqci = kzalloc(len, GFP_ATOMIC);
249c8b8d 226 if (!vqci)
62683ab5 227 return;
249c8b8d 228
62683ab5
GR		 229 vqci->vsi_id = adapter->vsi_res->vsi_id;
230 vqci->num_queue_pairs = pairs;
231 vqpi = vqci->qpair;
232 /* Size check is not needed here - HW max is 16 queue pairs, and we
233 * can fit info for 31 of them into the AQ buffer before it overflows.
234 */
235 for (i = 0; i < pairs; i++) {
236 vqpi->txq.vsi_id = vqci->vsi_id;
237 vqpi->txq.queue_id = i;
238 vqpi->txq.ring_len = adapter->tx_rings[i]->count;
239 vqpi->txq.dma_ring_addr = adapter->tx_rings[i]->dma;
5d29896a
AS		 240 vqpi->txq.headwb_enabled = 1;
241 vqpi->txq.dma_headwb_addr = vqpi->txq.dma_ring_addr +
242 (vqpi->txq.ring_len * sizeof(struct i40e_tx_desc));
62683ab5
GR		 243
244 vqpi->rxq.vsi_id = vqci->vsi_id;
245 vqpi->rxq.queue_id = i;
246 vqpi->rxq.ring_len = adapter->rx_rings[i]->count;
247 vqpi->rxq.dma_ring_addr = adapter->rx_rings[i]->dma;
248 vqpi->rxq.max_pkt_size = adapter->netdev->mtu
249 + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN;
250 vqpi->rxq.databuffer_size = adapter->rx_rings[i]->rx_buf_len;
251 vqpi++;
252 }
253
fc86a970
MW		 254 adapter->aq_pending |= I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
255 adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
62683ab5
GR		 256 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
257 (u8 *)vqci, len);
258 kfree(vqci);
62683ab5
GR		 259}
260
261/**
262 * i40evf_enable_queues
263 * @adapter: adapter structure
264 *
265 * Request that the PF enable all of our queues.
266 **/
267void i40evf_enable_queues(struct i40evf_adapter *adapter)
268{
269 struct i40e_virtchnl_queue_select vqs;
270
271 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
272 /* bail because we already have a command pending */
273 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
274 __func__, adapter->current_op);
275 return;
276 }
277 adapter->current_op = I40E_VIRTCHNL_OP_ENABLE_QUEUES;
278 vqs.vsi_id = adapter->vsi_res->vsi_id;
279 vqs.tx_queues = (1 << adapter->vsi_res->num_queue_pairs) - 1;
280 vqs.rx_queues = vqs.tx_queues;
62683ab5
GR		 281 adapter->aq_pending |= I40EVF_FLAG_AQ_ENABLE_QUEUES;
282 adapter->aq_required &= ~I40EVF_FLAG_AQ_ENABLE_QUEUES;
fc86a970
MW		 283 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
284 (u8 *)&vqs, sizeof(vqs));
62683ab5
GR		 285}
286
287/**
288 * i40evf_disable_queues
289 * @adapter: adapter structure
290 *
291 * Request that the PF disable all of our queues.
292 **/
293void i40evf_disable_queues(struct i40evf_adapter *adapter)
294{
295 struct i40e_virtchnl_queue_select vqs;
296
297 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
298 /* bail because we already have a command pending */
299 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
300 __func__, adapter->current_op);
301 return;
302 }
303 adapter->current_op = I40E_VIRTCHNL_OP_DISABLE_QUEUES;
304 vqs.vsi_id = adapter->vsi_res->vsi_id;
305 vqs.tx_queues = (1 << adapter->vsi_res->num_queue_pairs) - 1;
306 vqs.rx_queues = vqs.tx_queues;
62683ab5
GR		 307 adapter->aq_pending |= I40EVF_FLAG_AQ_DISABLE_QUEUES;
308 adapter->aq_required &= ~I40EVF_FLAG_AQ_DISABLE_QUEUES;
fc86a970
MW		 309 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
310 (u8 *)&vqs, sizeof(vqs));
62683ab5
GR		 311}
312
313/**
314 * i40evf_map_queues
315 * @adapter: adapter structure
316 *
317 * Request that the PF map queues to interrupt vectors. Misc causes, including
318 * admin queue, are always mapped to vector 0.
319 **/
320void i40evf_map_queues(struct i40evf_adapter *adapter)
321{
322 struct i40e_virtchnl_irq_map_info *vimi;
323 int v_idx, q_vectors, len;
324 struct i40e_q_vector *q_vector;
325
326 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
327 /* bail because we already have a command pending */
328 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
329 __func__, adapter->current_op);
330 return;
331 }
332 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP;
333
334 q_vectors = adapter->num_msix_vectors - NONQ_VECS;
335
336 len = sizeof(struct i40e_virtchnl_irq_map_info) +
337 (adapter->num_msix_vectors *
338 sizeof(struct i40e_virtchnl_vector_map));
339 vimi = kzalloc(len, GFP_ATOMIC);
249c8b8d 340 if (!vimi)
62683ab5 341 return;
62683ab5
GR		 342
343 vimi->num_vectors = adapter->num_msix_vectors;
344 /* Queue vectors first */
345 for (v_idx = 0; v_idx < q_vectors; v_idx++) {
346 q_vector = adapter->q_vector[v_idx];
347 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
348 vimi->vecmap[v_idx].vector_id = v_idx + NONQ_VECS;
349 vimi->vecmap[v_idx].txq_map = q_vector->ring_mask;
350 vimi->vecmap[v_idx].rxq_map = q_vector->ring_mask;
351 }
352 /* Misc vector last - this is only for AdminQ messages */
353 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
354 vimi->vecmap[v_idx].vector_id = 0;
355 vimi->vecmap[v_idx].txq_map = 0;
356 vimi->vecmap[v_idx].rxq_map = 0;
357
fc86a970
MW		 358 adapter->aq_pending |= I40EVF_FLAG_AQ_MAP_VECTORS;
359 adapter->aq_required &= ~I40EVF_FLAG_AQ_MAP_VECTORS;
62683ab5
GR		 360 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
361 (u8 *)vimi, len);
362 kfree(vimi);
62683ab5
GR		 363}
364
365/**
366 * i40evf_add_ether_addrs
367 * @adapter: adapter structure
368 * @addrs: the MAC address filters to add (contiguous)
369 * @count: number of filters
370 *
371 * Request that the PF add one or more addresses to our filters.
372 **/
373void i40evf_add_ether_addrs(struct i40evf_adapter *adapter)
374{
375 struct i40e_virtchnl_ether_addr_list *veal;
376 int len, i = 0, count = 0;
377 struct i40evf_mac_filter *f;
378
379 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
380 /* bail because we already have a command pending */
381 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
382 __func__, adapter->current_op);
383 return;
384 }
385 list_for_each_entry(f, &adapter->mac_filter_list, list) {
386 if (f->add)
387 count++;
388 }
389 if (!count) {
390 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
391 return;
392 }
393 adapter->current_op = I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS;
394
395 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
396 (count * sizeof(struct i40e_virtchnl_ether_addr));
397 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
80e72893 398 dev_warn(&adapter->pdev->dev, "%s: Too many MAC address changes in one request\n",
62683ab5
GR		 399 __func__);
400 count = (I40EVF_MAX_AQ_BUF_SIZE -
401 sizeof(struct i40e_virtchnl_ether_addr_list)) /
402 sizeof(struct i40e_virtchnl_ether_addr);
403 len = I40EVF_MAX_AQ_BUF_SIZE;
404 }
405
406 veal = kzalloc(len, GFP_ATOMIC);
249c8b8d 407 if (!veal)
62683ab5 408 return;
249c8b8d 409
62683ab5
GR		 410 veal->vsi_id = adapter->vsi_res->vsi_id;
411 veal->num_elements = count;
412 list_for_each_entry(f, &adapter->mac_filter_list, list) {
413 if (f->add) {
9a173901 414 ether_addr_copy(veal->list[i].addr, f->macaddr);
62683ab5
GR		 415 i++;
416 f->add = false;
417 }
418 }
fc86a970
MW		 419 adapter->aq_pending |= I40EVF_FLAG_AQ_ADD_MAC_FILTER;
420 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
62683ab5
GR		 421 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
422 (u8 *)veal, len);
423 kfree(veal);
62683ab5
GR		 424}
425
426/**
427 * i40evf_del_ether_addrs
428 * @adapter: adapter structure
429 * @addrs: the MAC address filters to remove (contiguous)
430 * @count: number of filtes
431 *
432 * Request that the PF remove one or more addresses from our filters.
433 **/
434void i40evf_del_ether_addrs(struct i40evf_adapter *adapter)
435{
436 struct i40e_virtchnl_ether_addr_list *veal;
437 struct i40evf_mac_filter *f, *ftmp;
438 int len, i = 0, count = 0;
439
440 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
441 /* bail because we already have a command pending */
442 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
443 __func__, adapter->current_op);
444 return;
445 }
446 list_for_each_entry(f, &adapter->mac_filter_list, list) {
447 if (f->remove)
448 count++;
449 }
450 if (!count) {
451 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
452 return;
453 }
454 adapter->current_op = I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS;
455
456 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
457 (count * sizeof(struct i40e_virtchnl_ether_addr));
458 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
80e72893 459 dev_warn(&adapter->pdev->dev, "%s: Too many MAC address changes in one request\n",
62683ab5
GR		 460 __func__);
461 count = (I40EVF_MAX_AQ_BUF_SIZE -
462 sizeof(struct i40e_virtchnl_ether_addr_list)) /
463 sizeof(struct i40e_virtchnl_ether_addr);
464 len = I40EVF_MAX_AQ_BUF_SIZE;
465 }
466 veal = kzalloc(len, GFP_ATOMIC);
249c8b8d 467 if (!veal)
62683ab5 468 return;
249c8b8d 469
62683ab5
GR		 470 veal->vsi_id = adapter->vsi_res->vsi_id;
471 veal->num_elements = count;
472 list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
473 if (f->remove) {
9a173901 474 ether_addr_copy(veal->list[i].addr, f->macaddr);
62683ab5
GR		 475 i++;
476 list_del(&f->list);
477 kfree(f);
478 }
479 }
fc86a970
MW		 480 adapter->aq_pending |= I40EVF_FLAG_AQ_DEL_MAC_FILTER;
481 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
62683ab5
GR		 482 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
483 (u8 *)veal, len);
484 kfree(veal);
62683ab5
GR		 485}
486
487/**
488 * i40evf_add_vlans
489 * @adapter: adapter structure
490 * @vlans: the VLANs to add
491 * @count: number of VLANs
492 *
493 * Request that the PF add one or more VLAN filters to our VSI.
494 **/
495void i40evf_add_vlans(struct i40evf_adapter *adapter)
496{
497 struct i40e_virtchnl_vlan_filter_list *vvfl;
498 int len, i = 0, count = 0;
499 struct i40evf_vlan_filter *f;
500
501 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
502 /* bail because we already have a command pending */
503 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
504 __func__, adapter->current_op);
505 return;
506 }
507
508 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
509 if (f->add)
510 count++;
511 }
512 if (!count) {
513 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
514 return;
515 }
516 adapter->current_op = I40E_VIRTCHNL_OP_ADD_VLAN;
517
518 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
519 (count * sizeof(u16));
520 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
80e72893 521 dev_warn(&adapter->pdev->dev, "%s: Too many VLAN changes in one request\n",
62683ab5
GR		 522 __func__);
523 count = (I40EVF_MAX_AQ_BUF_SIZE -
524 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
525 sizeof(u16);
526 len = I40EVF_MAX_AQ_BUF_SIZE;
527 }
528 vvfl = kzalloc(len, GFP_ATOMIC);
249c8b8d 529 if (!vvfl)
62683ab5 530 return;
249c8b8d 531
62683ab5
GR		 532 vvfl->vsi_id = adapter->vsi_res->vsi_id;
533 vvfl->num_elements = count;
534 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
535 if (f->add) {
536 vvfl->vlan_id[i] = f->vlan;
537 i++;
538 f->add = false;
539 }
540 }
62683ab5
GR		 541 adapter->aq_pending |= I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
542 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
fc86a970
MW		 543 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
544 kfree(vvfl);
62683ab5
GR		 545}
546
547/**
548 * i40evf_del_vlans
549 * @adapter: adapter structure
550 * @vlans: the VLANs to remove
551 * @count: number of VLANs
552 *
553 * Request that the PF remove one or more VLAN filters from our VSI.
554 **/
555void i40evf_del_vlans(struct i40evf_adapter *adapter)
556{
557 struct i40e_virtchnl_vlan_filter_list *vvfl;
558 struct i40evf_vlan_filter *f, *ftmp;
559 int len, i = 0, count = 0;
560
561 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
562 /* bail because we already have a command pending */
563 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
564 __func__, adapter->current_op);
565 return;
566 }
567
568 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
569 if (f->remove)
570 count++;
571 }
572 if (!count) {
573 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
574 return;
575 }
576 adapter->current_op = I40E_VIRTCHNL_OP_DEL_VLAN;
577
578 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
579 (count * sizeof(u16));
580 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
80e72893 581 dev_warn(&adapter->pdev->dev, "%s: Too many VLAN changes in one request\n",
62683ab5
GR		 582 __func__);
583 count = (I40EVF_MAX_AQ_BUF_SIZE -
584 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
585 sizeof(u16);
586 len = I40EVF_MAX_AQ_BUF_SIZE;
587 }
588 vvfl = kzalloc(len, GFP_ATOMIC);
249c8b8d 589 if (!vvfl)
62683ab5 590 return;
249c8b8d 591
62683ab5
GR		 592 vvfl->vsi_id = adapter->vsi_res->vsi_id;
593 vvfl->num_elements = count;
594 list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
595 if (f->remove) {
596 vvfl->vlan_id[i] = f->vlan;
597 i++;
598 list_del(&f->list);
599 kfree(f);
600 }
601 }
62683ab5
GR		 602 adapter->aq_pending |= I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
603 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
fc86a970
MW		 604 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
605 kfree(vvfl);
62683ab5
GR		 606}
607
608/**
609 * i40evf_set_promiscuous
610 * @adapter: adapter structure
611 * @flags: bitmask to control unicast/multicast promiscuous.
612 *
613 * Request that the PF enable promiscuous mode for our VSI.
614 **/
615void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags)
616{
617 struct i40e_virtchnl_promisc_info vpi;
618
619 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
620 /* bail because we already have a command pending */
621 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
622 __func__, adapter->current_op);
623 return;
624 }
625 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
626 vpi.vsi_id = adapter->vsi_res->vsi_id;
627 vpi.flags = flags;
628 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
629 (u8 *)&vpi, sizeof(vpi));
630}
631
632/**
633 * i40evf_request_stats
634 * @adapter: adapter structure
635 *
636 * Request VSI statistics from PF.
637 **/
638void i40evf_request_stats(struct i40evf_adapter *adapter)
639{
640 struct i40e_virtchnl_queue_select vqs;
641 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
642 /* no error message, this isn't crucial */
643 return;
644 }
645 adapter->current_op = I40E_VIRTCHNL_OP_GET_STATS;
646 vqs.vsi_id = adapter->vsi_res->vsi_id;
647 /* queue maps are ignored for this message - only the vsi is used */
648 if (i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_STATS,
649 (u8 *)&vqs, sizeof(vqs)))
650 /* if the request failed, don't lock out others */
651 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
652}
625777e3
MW		 653/**
654 * i40evf_request_reset
655 * @adapter: adapter structure
656 *
657 * Request that the PF reset this VF. No response is expected.
658 **/
659void i40evf_request_reset(struct i40evf_adapter *adapter)
660{
661 /* Don't check CURRENT_OP - this is always higher priority */
662 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_RESET_VF, NULL, 0);
663 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
664}
62683ab5
GR		 665
666/**
667 * i40evf_virtchnl_completion
668 * @adapter: adapter structure
669 * @v_opcode: opcode sent by PF
670 * @v_retval: retval sent by PF
671 * @msg: message sent by PF
672 * @msglen: message length
673 *
674 * Asynchronous completion function for admin queue messages. Rather than busy
675 * wait, we fire off our requests and assume that no errors will be returned.
676 * This function handles the reply messages.
677 **/
678void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
679 enum i40e_virtchnl_ops v_opcode,
680 i40e_status v_retval,
681 u8 *msg, u16 msglen)
682{
683 struct net_device *netdev = adapter->netdev;
684
685 if (v_opcode == I40E_VIRTCHNL_OP_EVENT) {
686 struct i40e_virtchnl_pf_event *vpe =
687 (struct i40e_virtchnl_pf_event *)msg;
688 switch (vpe->event) {
689 case I40E_VIRTCHNL_EVENT_LINK_CHANGE:
690 adapter->link_up =
691 vpe->event_data.link_event.link_status;
692 if (adapter->link_up && !netif_carrier_ok(netdev)) {
693 dev_info(&adapter->pdev->dev, "NIC Link is Up\n");
694 netif_carrier_on(netdev);
695 netif_tx_wake_all_queues(netdev);
696 } else if (!adapter->link_up) {
697 dev_info(&adapter->pdev->dev, "NIC Link is Down\n");
698 netif_carrier_off(netdev);
699 netif_tx_stop_all_queues(netdev);
700 }
701 break;
702 case I40E_VIRTCHNL_EVENT_RESET_IMPENDING:
ef8693eb
MW		 703 dev_info(&adapter->pdev->dev, "PF reset warning received\n");
704 if (!(adapter->flags & I40EVF_FLAG_RESET_PENDING)) {
705 adapter->flags |= I40EVF_FLAG_RESET_PENDING;
706 dev_info(&adapter->pdev->dev, "Scheduling reset task\n");
707 schedule_work(&adapter->reset_task);
708 }
62683ab5
GR		 709 break;
710 default:
711 dev_err(&adapter->pdev->dev,
712 "%s: Unknown event %d from pf\n",
713 __func__, vpe->event);
714 break;
715
716 }
717 return;
718 }
719 if (v_opcode != adapter->current_op) {
80e72893 720 dev_err(&adapter->pdev->dev, "%s: Pending op is %d, received %d\n",
62683ab5
GR		 721 __func__, adapter->current_op, v_opcode);
722 /* We're probably completely screwed at this point, but clear
723 * the current op and try to carry on....
724 */
725 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
726 return;
727 }
728 if (v_retval) {
80e72893 729 dev_err(&adapter->pdev->dev, "%s: PF returned error %d to our request %d\n",
62683ab5
GR		 730 __func__, v_retval, v_opcode);
731 }
732 switch (v_opcode) {
733 case I40E_VIRTCHNL_OP_GET_STATS: {
734 struct i40e_eth_stats *stats =
735 (struct i40e_eth_stats *)msg;
736 adapter->net_stats.rx_packets = stats->rx_unicast +
737 stats->rx_multicast +
738 stats->rx_broadcast;
739 adapter->net_stats.tx_packets = stats->tx_unicast +
740 stats->tx_multicast +
741 stats->tx_broadcast;
742 adapter->net_stats.rx_bytes = stats->rx_bytes;
743 adapter->net_stats.tx_bytes = stats->tx_bytes;
62683ab5 744 adapter->net_stats.tx_errors = stats->tx_errors;
03da6f6a 745 adapter->net_stats.rx_dropped = stats->rx_discards;
62683ab5
GR		 746 adapter->net_stats.tx_dropped = stats->tx_discards;
747 adapter->current_stats = *stats;
748 }
749 break;
750 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
751 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ADD_MAC_FILTER);
752 break;
753 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
754 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DEL_MAC_FILTER);
755 break;
756 case I40E_VIRTCHNL_OP_ADD_VLAN:
757 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ADD_VLAN_FILTER);
758 break;
759 case I40E_VIRTCHNL_OP_DEL_VLAN:
760 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DEL_VLAN_FILTER);
761 break;
762 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
763 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ENABLE_QUEUES);
764 /* enable transmits */
765 i40evf_irq_enable(adapter, true);
766 netif_tx_start_all_queues(adapter->netdev);
767 netif_carrier_on(adapter->netdev);
768 break;
769 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
770 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DISABLE_QUEUES);
771 break;
772 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
773 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_CONFIGURE_QUEUES);
774 break;
775 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
776 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_MAP_VECTORS);
777 break;
778 default:
80e72893 779 dev_warn(&adapter->pdev->dev, "%s: Received unexpected message %d from PF\n",
62683ab5
GR		 780 __func__, v_opcode);
781 break;
782 } /* switch v_opcode */
783 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
784}
Linux kernel - Deliverables
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