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i40e/i40evf: implement KR2 support
[linux-2.6-block.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
1001dc37
MW		 95 event.buf_len = I40EVF_MAX_AQ_BUF_SIZE;
96 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
62683ab5
GR		 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);
1001dc37
MW		 172 event.buf_len = len;
173 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
62683ab5
GR		 174 if (!event.msg_buf) {
175 err = -ENOMEM;
176 goto out;
177 }
178
f8d4db35 179 while (1) {
f8d4db35
MW		 180 /* When the AQ is empty, i40evf_clean_arq_element will return
181 * nonzero and this loop will terminate.
182 */
183 err = i40evf_clean_arq_element(hw, &event, NULL);
184 if (err)
185 goto out_alloc;
186 op =
187 (enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
188 if (op == I40E_VIRTCHNL_OP_GET_VF_RESOURCES)
189 break;
62683ab5
GR		 190 }
191
f8d4db35 192 err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
1001dc37 193 memcpy(adapter->vf_res, event.msg_buf, min(event.msg_len, len));
62683ab5
GR		 194
195 i40e_vf_parse_hw_config(hw, adapter->vf_res);
196out_alloc:
197 kfree(event.msg_buf);
198out:
199 return err;
200}
201
202/**
203 * i40evf_configure_queues
204 * @adapter: adapter structure
205 *
206 * Request that the PF set up our (previously allocated) queues.
207 **/
208void i40evf_configure_queues(struct i40evf_adapter *adapter)
209{
210 struct i40e_virtchnl_vsi_queue_config_info *vqci;
211 struct i40e_virtchnl_queue_pair_info *vqpi;
cc052927 212 int pairs = adapter->num_active_queues;
62683ab5
GR		 213 int i, len;
214
215 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
216 /* bail because we already have a command pending */
217 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
218 __func__, adapter->current_op);
219 return;
220 }
221 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES;
222 len = sizeof(struct i40e_virtchnl_vsi_queue_config_info) +
223 (sizeof(struct i40e_virtchnl_queue_pair_info) * pairs);
224 vqci = kzalloc(len, GFP_ATOMIC);
249c8b8d 225 if (!vqci)
62683ab5 226 return;
249c8b8d 227
62683ab5
GR		 228 vqci->vsi_id = adapter->vsi_res->vsi_id;
229 vqci->num_queue_pairs = pairs;
230 vqpi = vqci->qpair;
231 /* Size check is not needed here - HW max is 16 queue pairs, and we
232 * can fit info for 31 of them into the AQ buffer before it overflows.
233 */
234 for (i = 0; i < pairs; i++) {
235 vqpi->txq.vsi_id = vqci->vsi_id;
236 vqpi->txq.queue_id = i;
237 vqpi->txq.ring_len = adapter->tx_rings[i]->count;
238 vqpi->txq.dma_ring_addr = adapter->tx_rings[i]->dma;
5d29896a
AS		 239 vqpi->txq.headwb_enabled = 1;
240 vqpi->txq.dma_headwb_addr = vqpi->txq.dma_ring_addr +
241 (vqpi->txq.ring_len * sizeof(struct i40e_tx_desc));
62683ab5
GR		 242
243 vqpi->rxq.vsi_id = vqci->vsi_id;
244 vqpi->rxq.queue_id = i;
245 vqpi->rxq.ring_len = adapter->rx_rings[i]->count;
246 vqpi->rxq.dma_ring_addr = adapter->rx_rings[i]->dma;
247 vqpi->rxq.max_pkt_size = adapter->netdev->mtu
248 + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN;
249 vqpi->rxq.databuffer_size = adapter->rx_rings[i]->rx_buf_len;
250 vqpi++;
251 }
252
fc86a970
MW		 253 adapter->aq_pending |= I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
254 adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
62683ab5
GR		 255 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
256 (u8 *)vqci, len);
257 kfree(vqci);
62683ab5
GR		 258}
259
260/**
261 * i40evf_enable_queues
262 * @adapter: adapter structure
263 *
264 * Request that the PF enable all of our queues.
265 **/
266void i40evf_enable_queues(struct i40evf_adapter *adapter)
267{
268 struct i40e_virtchnl_queue_select vqs;
269
270 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
271 /* bail because we already have a command pending */
272 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
273 __func__, adapter->current_op);
274 return;
275 }
276 adapter->current_op = I40E_VIRTCHNL_OP_ENABLE_QUEUES;
277 vqs.vsi_id = adapter->vsi_res->vsi_id;
cc052927 278 vqs.tx_queues = (1 << adapter->num_active_queues) - 1;
62683ab5 279 vqs.rx_queues = vqs.tx_queues;
62683ab5
GR		 280 adapter->aq_pending |= I40EVF_FLAG_AQ_ENABLE_QUEUES;
281 adapter->aq_required &= ~I40EVF_FLAG_AQ_ENABLE_QUEUES;
fc86a970
MW		 282 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
283 (u8 *)&vqs, sizeof(vqs));
62683ab5
GR		 284}
285
286/**
287 * i40evf_disable_queues
288 * @adapter: adapter structure
289 *
290 * Request that the PF disable all of our queues.
291 **/
292void i40evf_disable_queues(struct i40evf_adapter *adapter)
293{
294 struct i40e_virtchnl_queue_select vqs;
295
296 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
297 /* bail because we already have a command pending */
298 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
299 __func__, adapter->current_op);
300 return;
301 }
302 adapter->current_op = I40E_VIRTCHNL_OP_DISABLE_QUEUES;
303 vqs.vsi_id = adapter->vsi_res->vsi_id;
cc052927 304 vqs.tx_queues = (1 << adapter->num_active_queues) - 1;
62683ab5 305 vqs.rx_queues = vqs.tx_queues;
62683ab5
GR		 306 adapter->aq_pending |= I40EVF_FLAG_AQ_DISABLE_QUEUES;
307 adapter->aq_required &= ~I40EVF_FLAG_AQ_DISABLE_QUEUES;
fc86a970
MW		 308 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
309 (u8 *)&vqs, sizeof(vqs));
62683ab5
GR		 310}
311
312/**
313 * i40evf_map_queues
314 * @adapter: adapter structure
315 *
316 * Request that the PF map queues to interrupt vectors. Misc causes, including
317 * admin queue, are always mapped to vector 0.
318 **/
319void i40evf_map_queues(struct i40evf_adapter *adapter)
320{
321 struct i40e_virtchnl_irq_map_info *vimi;
322 int v_idx, q_vectors, len;
323 struct i40e_q_vector *q_vector;
324
325 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
326 /* bail because we already have a command pending */
327 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
328 __func__, adapter->current_op);
329 return;
330 }
331 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP;
332
333 q_vectors = adapter->num_msix_vectors - NONQ_VECS;
334
335 len = sizeof(struct i40e_virtchnl_irq_map_info) +
336 (adapter->num_msix_vectors *
337 sizeof(struct i40e_virtchnl_vector_map));
338 vimi = kzalloc(len, GFP_ATOMIC);
249c8b8d 339 if (!vimi)
62683ab5 340 return;
62683ab5
GR		 341
342 vimi->num_vectors = adapter->num_msix_vectors;
343 /* Queue vectors first */
344 for (v_idx = 0; v_idx < q_vectors; v_idx++) {
345 q_vector = adapter->q_vector[v_idx];
346 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
347 vimi->vecmap[v_idx].vector_id = v_idx + NONQ_VECS;
348 vimi->vecmap[v_idx].txq_map = q_vector->ring_mask;
349 vimi->vecmap[v_idx].rxq_map = q_vector->ring_mask;
350 }
351 /* Misc vector last - this is only for AdminQ messages */
352 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
353 vimi->vecmap[v_idx].vector_id = 0;
354 vimi->vecmap[v_idx].txq_map = 0;
355 vimi->vecmap[v_idx].rxq_map = 0;
356
fc86a970
MW		 357 adapter->aq_pending |= I40EVF_FLAG_AQ_MAP_VECTORS;
358 adapter->aq_required &= ~I40EVF_FLAG_AQ_MAP_VECTORS;
62683ab5
GR		 359 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
360 (u8 *)vimi, len);
361 kfree(vimi);
62683ab5
GR		 362}
363
364/**
365 * i40evf_add_ether_addrs
366 * @adapter: adapter structure
367 * @addrs: the MAC address filters to add (contiguous)
368 * @count: number of filters
369 *
370 * Request that the PF add one or more addresses to our filters.
371 **/
372void i40evf_add_ether_addrs(struct i40evf_adapter *adapter)
373{
374 struct i40e_virtchnl_ether_addr_list *veal;
375 int len, i = 0, count = 0;
376 struct i40evf_mac_filter *f;
377
378 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
379 /* bail because we already have a command pending */
380 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
381 __func__, adapter->current_op);
382 return;
383 }
384 list_for_each_entry(f, &adapter->mac_filter_list, list) {
385 if (f->add)
386 count++;
387 }
388 if (!count) {
389 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
390 return;
391 }
392 adapter->current_op = I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS;
393
394 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
395 (count * sizeof(struct i40e_virtchnl_ether_addr));
396 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
80e72893 397 dev_warn(&adapter->pdev->dev, "%s: Too many MAC address changes in one request\n",
75a64435 398 __func__);
62683ab5
GR		 399 count = (I40EVF_MAX_AQ_BUF_SIZE -
400 sizeof(struct i40e_virtchnl_ether_addr_list)) /
401 sizeof(struct i40e_virtchnl_ether_addr);
402 len = I40EVF_MAX_AQ_BUF_SIZE;
403 }
404
405 veal = kzalloc(len, GFP_ATOMIC);
249c8b8d 406 if (!veal)
62683ab5 407 return;
249c8b8d 408
62683ab5
GR		 409 veal->vsi_id = adapter->vsi_res->vsi_id;
410 veal->num_elements = count;
411 list_for_each_entry(f, &adapter->mac_filter_list, list) {
412 if (f->add) {
9a173901 413 ether_addr_copy(veal->list[i].addr, f->macaddr);
62683ab5
GR		 414 i++;
415 f->add = false;
416 }
417 }
fc86a970
MW		 418 adapter->aq_pending |= I40EVF_FLAG_AQ_ADD_MAC_FILTER;
419 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
62683ab5
GR		 420 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
421 (u8 *)veal, len);
422 kfree(veal);
62683ab5
GR		 423}
424
425/**
426 * i40evf_del_ether_addrs
427 * @adapter: adapter structure
428 * @addrs: the MAC address filters to remove (contiguous)
429 * @count: number of filtes
430 *
431 * Request that the PF remove one or more addresses from our filters.
432 **/
433void i40evf_del_ether_addrs(struct i40evf_adapter *adapter)
434{
435 struct i40e_virtchnl_ether_addr_list *veal;
436 struct i40evf_mac_filter *f, *ftmp;
437 int len, i = 0, count = 0;
438
439 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
440 /* bail because we already have a command pending */
441 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
442 __func__, adapter->current_op);
443 return;
444 }
445 list_for_each_entry(f, &adapter->mac_filter_list, list) {
446 if (f->remove)
447 count++;
448 }
449 if (!count) {
450 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
451 return;
452 }
453 adapter->current_op = I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS;
454
455 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
456 (count * sizeof(struct i40e_virtchnl_ether_addr));
457 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
80e72893 458 dev_warn(&adapter->pdev->dev, "%s: Too many MAC address changes in one request\n",
75a64435 459 __func__);
62683ab5
GR		 460 count = (I40EVF_MAX_AQ_BUF_SIZE -
461 sizeof(struct i40e_virtchnl_ether_addr_list)) /
462 sizeof(struct i40e_virtchnl_ether_addr);
463 len = I40EVF_MAX_AQ_BUF_SIZE;
464 }
465 veal = kzalloc(len, GFP_ATOMIC);
249c8b8d 466 if (!veal)
62683ab5 467 return;
249c8b8d 468
62683ab5
GR		 469 veal->vsi_id = adapter->vsi_res->vsi_id;
470 veal->num_elements = count;
471 list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
472 if (f->remove) {
9a173901 473 ether_addr_copy(veal->list[i].addr, f->macaddr);
62683ab5
GR		 474 i++;
475 list_del(&f->list);
476 kfree(f);
477 }
478 }
fc86a970
MW		 479 adapter->aq_pending |= I40EVF_FLAG_AQ_DEL_MAC_FILTER;
480 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
62683ab5
GR		 481 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
482 (u8 *)veal, len);
483 kfree(veal);
62683ab5
GR		 484}
485
486/**
487 * i40evf_add_vlans
488 * @adapter: adapter structure
489 * @vlans: the VLANs to add
490 * @count: number of VLANs
491 *
492 * Request that the PF add one or more VLAN filters to our VSI.
493 **/
494void i40evf_add_vlans(struct i40evf_adapter *adapter)
495{
496 struct i40e_virtchnl_vlan_filter_list *vvfl;
497 int len, i = 0, count = 0;
498 struct i40evf_vlan_filter *f;
499
500 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
501 /* bail because we already have a command pending */
502 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
503 __func__, adapter->current_op);
504 return;
505 }
506
507 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
508 if (f->add)
509 count++;
510 }
511 if (!count) {
512 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
513 return;
514 }
515 adapter->current_op = I40E_VIRTCHNL_OP_ADD_VLAN;
516
517 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
518 (count * sizeof(u16));
519 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
80e72893 520 dev_warn(&adapter->pdev->dev, "%s: Too many VLAN changes in one request\n",
75a64435 521 __func__);
62683ab5
GR		 522 count = (I40EVF_MAX_AQ_BUF_SIZE -
523 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
524 sizeof(u16);
525 len = I40EVF_MAX_AQ_BUF_SIZE;
526 }
527 vvfl = kzalloc(len, GFP_ATOMIC);
249c8b8d 528 if (!vvfl)
62683ab5 529 return;
249c8b8d 530
62683ab5
GR		 531 vvfl->vsi_id = adapter->vsi_res->vsi_id;
532 vvfl->num_elements = count;
533 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
534 if (f->add) {
535 vvfl->vlan_id[i] = f->vlan;
536 i++;
537 f->add = false;
538 }
539 }
62683ab5
GR		 540 adapter->aq_pending |= I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
541 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
fc86a970
MW		 542 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
543 kfree(vvfl);
62683ab5
GR		 544}
545
546/**
547 * i40evf_del_vlans
548 * @adapter: adapter structure
549 * @vlans: the VLANs to remove
550 * @count: number of VLANs
551 *
552 * Request that the PF remove one or more VLAN filters from our VSI.
553 **/
554void i40evf_del_vlans(struct i40evf_adapter *adapter)
555{
556 struct i40e_virtchnl_vlan_filter_list *vvfl;
557 struct i40evf_vlan_filter *f, *ftmp;
558 int len, i = 0, count = 0;
559
560 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
561 /* bail because we already have a command pending */
562 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
563 __func__, adapter->current_op);
564 return;
565 }
566
567 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
568 if (f->remove)
569 count++;
570 }
571 if (!count) {
572 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
573 return;
574 }
575 adapter->current_op = I40E_VIRTCHNL_OP_DEL_VLAN;
576
577 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
578 (count * sizeof(u16));
579 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
80e72893 580 dev_warn(&adapter->pdev->dev, "%s: Too many VLAN changes in one request\n",
75a64435 581 __func__);
62683ab5
GR		 582 count = (I40EVF_MAX_AQ_BUF_SIZE -
583 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
584 sizeof(u16);
585 len = I40EVF_MAX_AQ_BUF_SIZE;
586 }
587 vvfl = kzalloc(len, GFP_ATOMIC);
249c8b8d 588 if (!vvfl)
62683ab5 589 return;
249c8b8d 590
62683ab5
GR		 591 vvfl->vsi_id = adapter->vsi_res->vsi_id;
592 vvfl->num_elements = count;
593 list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
594 if (f->remove) {
595 vvfl->vlan_id[i] = f->vlan;
596 i++;
597 list_del(&f->list);
598 kfree(f);
599 }
600 }
62683ab5
GR		 601 adapter->aq_pending |= I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
602 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
fc86a970
MW		 603 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
604 kfree(vvfl);
62683ab5
GR		 605}
606
607/**
608 * i40evf_set_promiscuous
609 * @adapter: adapter structure
610 * @flags: bitmask to control unicast/multicast promiscuous.
611 *
612 * Request that the PF enable promiscuous mode for our VSI.
613 **/
614void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags)
615{
616 struct i40e_virtchnl_promisc_info vpi;
617
618 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
619 /* bail because we already have a command pending */
620 dev_err(&adapter->pdev->dev, "%s: command %d pending\n",
621 __func__, adapter->current_op);
622 return;
623 }
624 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
625 vpi.vsi_id = adapter->vsi_res->vsi_id;
626 vpi.flags = flags;
627 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
628 (u8 *)&vpi, sizeof(vpi));
629}
630
631/**
632 * i40evf_request_stats
633 * @adapter: adapter structure
634 *
635 * Request VSI statistics from PF.
636 **/
637void i40evf_request_stats(struct i40evf_adapter *adapter)
638{
639 struct i40e_virtchnl_queue_select vqs;
75a64435 640
62683ab5
GR		 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;
62683ab5
GR		 715 }
716 return;
717 }
62683ab5 718 if (v_retval) {
80e72893 719 dev_err(&adapter->pdev->dev, "%s: PF returned error %d to our request %d\n",
62683ab5
GR		 720 __func__, v_retval, v_opcode);
721 }
722 switch (v_opcode) {
0758e7cb
MW		 723 case I40E_VIRTCHNL_OP_VERSION:
724 /* no action, but also not an error */
725 break;
62683ab5
GR		 726 case I40E_VIRTCHNL_OP_GET_STATS: {
727 struct i40e_eth_stats *stats =
728 (struct i40e_eth_stats *)msg;
729 adapter->net_stats.rx_packets = stats->rx_unicast +
730 stats->rx_multicast +
731 stats->rx_broadcast;
732 adapter->net_stats.tx_packets = stats->tx_unicast +
733 stats->tx_multicast +
734 stats->tx_broadcast;
735 adapter->net_stats.rx_bytes = stats->rx_bytes;
736 adapter->net_stats.tx_bytes = stats->tx_bytes;
62683ab5 737 adapter->net_stats.tx_errors = stats->tx_errors;
03da6f6a 738 adapter->net_stats.rx_dropped = stats->rx_discards;
62683ab5
GR		 739 adapter->net_stats.tx_dropped = stats->tx_discards;
740 adapter->current_stats = *stats;
741 }
742 break;
743 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
744 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ADD_MAC_FILTER);
745 break;
746 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
747 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DEL_MAC_FILTER);
748 break;
749 case I40E_VIRTCHNL_OP_ADD_VLAN:
750 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ADD_VLAN_FILTER);
751 break;
752 case I40E_VIRTCHNL_OP_DEL_VLAN:
753 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DEL_VLAN_FILTER);
754 break;
755 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
756 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_ENABLE_QUEUES);
757 /* enable transmits */
758 i40evf_irq_enable(adapter, true);
759 netif_tx_start_all_queues(adapter->netdev);
760 netif_carrier_on(adapter->netdev);
761 break;
762 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
763 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_DISABLE_QUEUES);
764 break;
765 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
766 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_CONFIGURE_QUEUES);
767 break;
768 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
769 adapter->aq_pending &= ~(I40EVF_FLAG_AQ_MAP_VECTORS);
770 break;
771 default:
906a6937
MW		 772 dev_info(&adapter->pdev->dev, "Received unexpected message %d from PF\n",
773 v_opcode);
62683ab5
GR		 774 break;
775 } /* switch v_opcode */
776 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
777}
Linux 6.x block layer and io_uring tree(s)