projects / deliverable / linux.git / blob
? search:


9b55576226572b24f1152cdc8d70979f630ee885
[deliverable/linux.git] / drivers / net / ethernet / intel / i40evf / i40evf_virtchnl.c
1 /*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver
4 * Copyright(c) 2013 - 2014 Intel Corporation.
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 *
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 *
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 **/
43 static 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
49 if (adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED)
50 return 0; /* nothing to see here, move along */
51
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, err %s, aq_err %s\n",
55 op, i40evf_stat_str(hw, err),
56 i40evf_aq_str(hw, hw->aq.asq_last_status));
57 return err;
58 }
59
60 /**
61 * i40evf_send_api_ver
62 * @adapter: adapter structure
63 *
64 * Send API version admin queue message to the PF. The reply is not checked
65 * in this function. Returns 0 if the message was successfully
66 * sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not.
67 **/
68 int i40evf_send_api_ver(struct i40evf_adapter *adapter)
69 {
70 struct i40e_virtchnl_version_info vvi;
71
72 vvi.major = I40E_VIRTCHNL_VERSION_MAJOR;
73 vvi.minor = I40E_VIRTCHNL_VERSION_MINOR;
74
75 return i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_VERSION, (u8 *)&vvi,
76 sizeof(vvi));
77 }
78
79 /**
80 * i40evf_verify_api_ver
81 * @adapter: adapter structure
82 *
83 * Compare API versions with the PF. Must be called after admin queue is
84 * initialized. Returns 0 if API versions match, -EIO if they do not,
85 * I40E_ERR_ADMIN_QUEUE_NO_WORK if the admin queue is empty, and any errors
86 * from the firmware are propagated.
87 **/
88 int i40evf_verify_api_ver(struct i40evf_adapter *adapter)
89 {
90 struct i40e_virtchnl_version_info *pf_vvi;
91 struct i40e_hw *hw = &adapter->hw;
92 struct i40e_arq_event_info event;
93 enum i40e_virtchnl_ops op;
94 i40e_status err;
95
96 event.buf_len = I40EVF_MAX_AQ_BUF_SIZE;
97 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
98 if (!event.msg_buf) {
99 err = -ENOMEM;
100 goto out;
101 }
102
103 while (1) {
104 err = i40evf_clean_arq_element(hw, &event, NULL);
105 /* When the AQ is empty, i40evf_clean_arq_element will return
106 * nonzero and this loop will terminate.
107 */
108 if (err)
109 goto out_alloc;
110 op =
111 (enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
112 if (op == I40E_VIRTCHNL_OP_VERSION)
113 break;
114 }
115
116
117 err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
118 if (err)
119 goto out_alloc;
120
121 if (op != I40E_VIRTCHNL_OP_VERSION) {
122 dev_info(&adapter->pdev->dev, "Invalid reply type %d from PF\n",
123 op);
124 err = -EIO;
125 goto out_alloc;
126 }
127
128 pf_vvi = (struct i40e_virtchnl_version_info *)event.msg_buf;
129 adapter->pf_version = *pf_vvi;
130
131 if ((pf_vvi->major > I40E_VIRTCHNL_VERSION_MAJOR) ||
132 ((pf_vvi->major == I40E_VIRTCHNL_VERSION_MAJOR) &&
133 (pf_vvi->minor > I40E_VIRTCHNL_VERSION_MINOR)))
134 err = -EIO;
135
136 out_alloc:
137 kfree(event.msg_buf);
138 out:
139 return err;
140 }
141
142 /**
143 * i40evf_send_vf_config_msg
144 * @adapter: adapter structure
145 *
146 * Send VF configuration request admin queue message to the PF. The reply
147 * is not checked in this function. Returns 0 if the message was
148 * successfully sent, or one of the I40E_ADMIN_QUEUE_ERROR_ statuses if not.
149 **/
150 int i40evf_send_vf_config_msg(struct i40evf_adapter *adapter)
151 {
152 u32 caps;
153
154 adapter->current_op = I40E_VIRTCHNL_OP_GET_VF_RESOURCES;
155 adapter->aq_required &= ~I40EVF_FLAG_AQ_GET_CONFIG;
156 caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
157 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ |
158 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
159 I40E_VIRTCHNL_VF_OFFLOAD_VLAN |
160 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
161 adapter->current_op = I40E_VIRTCHNL_OP_GET_VF_RESOURCES;
162 adapter->aq_required &= ~I40EVF_FLAG_AQ_GET_CONFIG;
163 if (PF_IS_V11(adapter))
164 return i40evf_send_pf_msg(adapter,
165 I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
166 (u8 *)&caps, sizeof(caps));
167 else
168 return i40evf_send_pf_msg(adapter,
169 I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
170 NULL, 0);
171 }
172
173 /**
174 * i40evf_get_vf_config
175 * @hw: pointer to the hardware structure
176 * @len: length of buffer
177 *
178 * Get VF configuration from PF and populate hw structure. Must be called after
179 * admin queue is initialized. Busy waits until response is received from PF,
180 * with maximum timeout. Response from PF is returned in the buffer for further
181 * processing by the caller.
182 **/
183 int i40evf_get_vf_config(struct i40evf_adapter *adapter)
184 {
185 struct i40e_hw *hw = &adapter->hw;
186 struct i40e_arq_event_info event;
187 enum i40e_virtchnl_ops op;
188 i40e_status err;
189 u16 len;
190
191 len = sizeof(struct i40e_virtchnl_vf_resource) +
192 I40E_MAX_VF_VSI * sizeof(struct i40e_virtchnl_vsi_resource);
193 event.buf_len = len;
194 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
195 if (!event.msg_buf) {
196 err = -ENOMEM;
197 goto out;
198 }
199
200 while (1) {
201 /* When the AQ is empty, i40evf_clean_arq_element will return
202 * nonzero and this loop will terminate.
203 */
204 err = i40evf_clean_arq_element(hw, &event, NULL);
205 if (err)
206 goto out_alloc;
207 op =
208 (enum i40e_virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
209 if (op == I40E_VIRTCHNL_OP_GET_VF_RESOURCES)
210 break;
211 }
212
213 err = (i40e_status)le32_to_cpu(event.desc.cookie_low);
214 memcpy(adapter->vf_res, event.msg_buf, min(event.msg_len, len));
215
216 i40e_vf_parse_hw_config(hw, adapter->vf_res);
217 out_alloc:
218 kfree(event.msg_buf);
219 out:
220 return err;
221 }
222
223 /**
224 * i40evf_configure_queues
225 * @adapter: adapter structure
226 *
227 * Request that the PF set up our (previously allocated) queues.
228 **/
229 void i40evf_configure_queues(struct i40evf_adapter *adapter)
230 {
231 struct i40e_virtchnl_vsi_queue_config_info *vqci;
232 struct i40e_virtchnl_queue_pair_info *vqpi;
233 int pairs = adapter->num_active_queues;
234 int i, len;
235
236 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
237 /* bail because we already have a command pending */
238 dev_err(&adapter->pdev->dev, "Cannot configure queues, command %d pending\n",
239 adapter->current_op);
240 return;
241 }
242 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES;
243 len = sizeof(struct i40e_virtchnl_vsi_queue_config_info) +
244 (sizeof(struct i40e_virtchnl_queue_pair_info) * pairs);
245 vqci = kzalloc(len, GFP_ATOMIC);
246 if (!vqci)
247 return;
248
249 vqci->vsi_id = adapter->vsi_res->vsi_id;
250 vqci->num_queue_pairs = pairs;
251 vqpi = vqci->qpair;
252 /* Size check is not needed here - HW max is 16 queue pairs, and we
253 * can fit info for 31 of them into the AQ buffer before it overflows.
254 */
255 for (i = 0; i < pairs; i++) {
256 vqpi->txq.vsi_id = vqci->vsi_id;
257 vqpi->txq.queue_id = i;
258 vqpi->txq.ring_len = adapter->tx_rings[i].count;
259 vqpi->txq.dma_ring_addr = adapter->tx_rings[i].dma;
260 vqpi->txq.headwb_enabled = 1;
261 vqpi->txq.dma_headwb_addr = vqpi->txq.dma_ring_addr +
262 (vqpi->txq.ring_len * sizeof(struct i40e_tx_desc));
263
264 vqpi->rxq.vsi_id = vqci->vsi_id;
265 vqpi->rxq.queue_id = i;
266 vqpi->rxq.ring_len = adapter->rx_rings[i].count;
267 vqpi->rxq.dma_ring_addr = adapter->rx_rings[i].dma;
268 vqpi->rxq.max_pkt_size = adapter->netdev->mtu
269 + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN;
270 vqpi->rxq.databuffer_size = adapter->rx_rings[i].rx_buf_len;
271 vqpi++;
272 }
273
274 adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_QUEUES;
275 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
276 (u8 *)vqci, len);
277 kfree(vqci);
278 }
279
280 /**
281 * i40evf_enable_queues
282 * @adapter: adapter structure
283 *
284 * Request that the PF enable all of our queues.
285 **/
286 void i40evf_enable_queues(struct i40evf_adapter *adapter)
287 {
288 struct i40e_virtchnl_queue_select vqs;
289
290 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
291 /* bail because we already have a command pending */
292 dev_err(&adapter->pdev->dev, "Cannot enable queues, command %d pending\n",
293 adapter->current_op);
294 return;
295 }
296 adapter->current_op = I40E_VIRTCHNL_OP_ENABLE_QUEUES;
297 vqs.vsi_id = adapter->vsi_res->vsi_id;
298 vqs.tx_queues = BIT(adapter->num_active_queues) - 1;
299 vqs.rx_queues = vqs.tx_queues;
300 adapter->aq_required &= ~I40EVF_FLAG_AQ_ENABLE_QUEUES;
301 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
302 (u8 *)&vqs, sizeof(vqs));
303 }
304
305 /**
306 * i40evf_disable_queues
307 * @adapter: adapter structure
308 *
309 * Request that the PF disable all of our queues.
310 **/
311 void i40evf_disable_queues(struct i40evf_adapter *adapter)
312 {
313 struct i40e_virtchnl_queue_select vqs;
314
315 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
316 /* bail because we already have a command pending */
317 dev_err(&adapter->pdev->dev, "Cannot disable queues, command %d pending\n",
318 adapter->current_op);
319 return;
320 }
321 adapter->current_op = I40E_VIRTCHNL_OP_DISABLE_QUEUES;
322 vqs.vsi_id = adapter->vsi_res->vsi_id;
323 vqs.tx_queues = BIT(adapter->num_active_queues) - 1;
324 vqs.rx_queues = vqs.tx_queues;
325 adapter->aq_required &= ~I40EVF_FLAG_AQ_DISABLE_QUEUES;
326 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
327 (u8 *)&vqs, sizeof(vqs));
328 }
329
330 /**
331 * i40evf_map_queues
332 * @adapter: adapter structure
333 *
334 * Request that the PF map queues to interrupt vectors. Misc causes, including
335 * admin queue, are always mapped to vector 0.
336 **/
337 void i40evf_map_queues(struct i40evf_adapter *adapter)
338 {
339 struct i40e_virtchnl_irq_map_info *vimi;
340 int v_idx, q_vectors, len;
341 struct i40e_q_vector *q_vector;
342
343 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
344 /* bail because we already have a command pending */
345 dev_err(&adapter->pdev->dev, "Cannot map queues to vectors, command %d pending\n",
346 adapter->current_op);
347 return;
348 }
349 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP;
350
351 q_vectors = adapter->num_msix_vectors - NONQ_VECS;
352
353 len = sizeof(struct i40e_virtchnl_irq_map_info) +
354 (adapter->num_msix_vectors *
355 sizeof(struct i40e_virtchnl_vector_map));
356 vimi = kzalloc(len, GFP_ATOMIC);
357 if (!vimi)
358 return;
359
360 vimi->num_vectors = adapter->num_msix_vectors;
361 /* Queue vectors first */
362 for (v_idx = 0; v_idx < q_vectors; v_idx++) {
363 q_vector = adapter->q_vectors + v_idx;
364 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
365 vimi->vecmap[v_idx].vector_id = v_idx + NONQ_VECS;
366 vimi->vecmap[v_idx].txq_map = q_vector->ring_mask;
367 vimi->vecmap[v_idx].rxq_map = q_vector->ring_mask;
368 }
369 /* Misc vector last - this is only for AdminQ messages */
370 vimi->vecmap[v_idx].vsi_id = adapter->vsi_res->vsi_id;
371 vimi->vecmap[v_idx].vector_id = 0;
372 vimi->vecmap[v_idx].txq_map = 0;
373 vimi->vecmap[v_idx].rxq_map = 0;
374
375 adapter->aq_required &= ~I40EVF_FLAG_AQ_MAP_VECTORS;
376 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
377 (u8 *)vimi, len);
378 kfree(vimi);
379 }
380
381 /**
382 * i40evf_add_ether_addrs
383 * @adapter: adapter structure
384 * @addrs: the MAC address filters to add (contiguous)
385 * @count: number of filters
386 *
387 * Request that the PF add one or more addresses to our filters.
388 **/
389 void i40evf_add_ether_addrs(struct i40evf_adapter *adapter)
390 {
391 struct i40e_virtchnl_ether_addr_list *veal;
392 int len, i = 0, count = 0;
393 struct i40evf_mac_filter *f;
394 bool more = false;
395
396 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
397 /* bail because we already have a command pending */
398 dev_err(&adapter->pdev->dev, "Cannot add filters, command %d pending\n",
399 adapter->current_op);
400 return;
401 }
402 list_for_each_entry(f, &adapter->mac_filter_list, list) {
403 if (f->add)
404 count++;
405 }
406 if (!count) {
407 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
408 return;
409 }
410 adapter->current_op = I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS;
411
412 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
413 (count * sizeof(struct i40e_virtchnl_ether_addr));
414 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
415 dev_warn(&adapter->pdev->dev, "Too many add MAC changes in one request\n");
416 count = (I40EVF_MAX_AQ_BUF_SIZE -
417 sizeof(struct i40e_virtchnl_ether_addr_list)) /
418 sizeof(struct i40e_virtchnl_ether_addr);
419 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
420 (count * sizeof(struct i40e_virtchnl_ether_addr));
421 more = true;
422 }
423
424 veal = kzalloc(len, GFP_ATOMIC);
425 if (!veal)
426 return;
427
428 veal->vsi_id = adapter->vsi_res->vsi_id;
429 veal->num_elements = count;
430 list_for_each_entry(f, &adapter->mac_filter_list, list) {
431 if (f->add) {
432 ether_addr_copy(veal->list[i].addr, f->macaddr);
433 i++;
434 f->add = false;
435 }
436 }
437 if (!more)
438 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_MAC_FILTER;
439 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
440 (u8 *)veal, len);
441 kfree(veal);
442 }
443
444 /**
445 * i40evf_del_ether_addrs
446 * @adapter: adapter structure
447 * @addrs: the MAC address filters to remove (contiguous)
448 * @count: number of filtes
449 *
450 * Request that the PF remove one or more addresses from our filters.
451 **/
452 void i40evf_del_ether_addrs(struct i40evf_adapter *adapter)
453 {
454 struct i40e_virtchnl_ether_addr_list *veal;
455 struct i40evf_mac_filter *f, *ftmp;
456 int len, i = 0, count = 0;
457 bool more = false;
458
459 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
460 /* bail because we already have a command pending */
461 dev_err(&adapter->pdev->dev, "Cannot remove filters, command %d pending\n",
462 adapter->current_op);
463 return;
464 }
465 list_for_each_entry(f, &adapter->mac_filter_list, list) {
466 if (f->remove)
467 count++;
468 }
469 if (!count) {
470 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
471 return;
472 }
473 adapter->current_op = I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS;
474
475 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
476 (count * sizeof(struct i40e_virtchnl_ether_addr));
477 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
478 dev_warn(&adapter->pdev->dev, "Too many delete MAC changes in one request\n");
479 count = (I40EVF_MAX_AQ_BUF_SIZE -
480 sizeof(struct i40e_virtchnl_ether_addr_list)) /
481 sizeof(struct i40e_virtchnl_ether_addr);
482 len = sizeof(struct i40e_virtchnl_ether_addr_list) +
483 (count * sizeof(struct i40e_virtchnl_ether_addr));
484 more = true;
485 }
486 veal = kzalloc(len, GFP_ATOMIC);
487 if (!veal)
488 return;
489
490 veal->vsi_id = adapter->vsi_res->vsi_id;
491 veal->num_elements = count;
492 list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
493 if (f->remove) {
494 ether_addr_copy(veal->list[i].addr, f->macaddr);
495 i++;
496 list_del(&f->list);
497 kfree(f);
498 }
499 }
500 if (!more)
501 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_MAC_FILTER;
502 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
503 (u8 *)veal, len);
504 kfree(veal);
505 }
506
507 /**
508 * i40evf_add_vlans
509 * @adapter: adapter structure
510 * @vlans: the VLANs to add
511 * @count: number of VLANs
512 *
513 * Request that the PF add one or more VLAN filters to our VSI.
514 **/
515 void i40evf_add_vlans(struct i40evf_adapter *adapter)
516 {
517 struct i40e_virtchnl_vlan_filter_list *vvfl;
518 int len, i = 0, count = 0;
519 struct i40evf_vlan_filter *f;
520 bool more = false;
521
522 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
523 /* bail because we already have a command pending */
524 dev_err(&adapter->pdev->dev, "Cannot add VLANs, command %d pending\n",
525 adapter->current_op);
526 return;
527 }
528
529 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
530 if (f->add)
531 count++;
532 }
533 if (!count) {
534 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
535 return;
536 }
537 adapter->current_op = I40E_VIRTCHNL_OP_ADD_VLAN;
538
539 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
540 (count * sizeof(u16));
541 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
542 dev_warn(&adapter->pdev->dev, "Too many add VLAN changes in one request\n");
543 count = (I40EVF_MAX_AQ_BUF_SIZE -
544 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
545 sizeof(u16);
546 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
547 (count * sizeof(u16));
548 more = true;
549 }
550 vvfl = kzalloc(len, GFP_ATOMIC);
551 if (!vvfl)
552 return;
553
554 vvfl->vsi_id = adapter->vsi_res->vsi_id;
555 vvfl->num_elements = count;
556 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
557 if (f->add) {
558 vvfl->vlan_id[i] = f->vlan;
559 i++;
560 f->add = false;
561 }
562 }
563 if (!more)
564 adapter->aq_required &= ~I40EVF_FLAG_AQ_ADD_VLAN_FILTER;
565 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
566 kfree(vvfl);
567 }
568
569 /**
570 * i40evf_del_vlans
571 * @adapter: adapter structure
572 * @vlans: the VLANs to remove
573 * @count: number of VLANs
574 *
575 * Request that the PF remove one or more VLAN filters from our VSI.
576 **/
577 void i40evf_del_vlans(struct i40evf_adapter *adapter)
578 {
579 struct i40e_virtchnl_vlan_filter_list *vvfl;
580 struct i40evf_vlan_filter *f, *ftmp;
581 int len, i = 0, count = 0;
582 bool more = false;
583
584 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
585 /* bail because we already have a command pending */
586 dev_err(&adapter->pdev->dev, "Cannot remove VLANs, command %d pending\n",
587 adapter->current_op);
588 return;
589 }
590
591 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
592 if (f->remove)
593 count++;
594 }
595 if (!count) {
596 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
597 return;
598 }
599 adapter->current_op = I40E_VIRTCHNL_OP_DEL_VLAN;
600
601 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
602 (count * sizeof(u16));
603 if (len > I40EVF_MAX_AQ_BUF_SIZE) {
604 dev_warn(&adapter->pdev->dev, "Too many delete VLAN changes in one request\n");
605 count = (I40EVF_MAX_AQ_BUF_SIZE -
606 sizeof(struct i40e_virtchnl_vlan_filter_list)) /
607 sizeof(u16);
608 len = sizeof(struct i40e_virtchnl_vlan_filter_list) +
609 (count * sizeof(u16));
610 more = true;
611 }
612 vvfl = kzalloc(len, GFP_ATOMIC);
613 if (!vvfl)
614 return;
615
616 vvfl->vsi_id = adapter->vsi_res->vsi_id;
617 vvfl->num_elements = count;
618 list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
619 if (f->remove) {
620 vvfl->vlan_id[i] = f->vlan;
621 i++;
622 list_del(&f->list);
623 kfree(f);
624 }
625 }
626 if (!more)
627 adapter->aq_required &= ~I40EVF_FLAG_AQ_DEL_VLAN_FILTER;
628 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
629 kfree(vvfl);
630 }
631
632 /**
633 * i40evf_set_promiscuous
634 * @adapter: adapter structure
635 * @flags: bitmask to control unicast/multicast promiscuous.
636 *
637 * Request that the PF enable promiscuous mode for our VSI.
638 **/
639 void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags)
640 {
641 struct i40e_virtchnl_promisc_info vpi;
642
643 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
644 /* bail because we already have a command pending */
645 dev_err(&adapter->pdev->dev, "Cannot set promiscuous mode, command %d pending\n",
646 adapter->current_op);
647 return;
648 }
649 adapter->current_op = I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
650 vpi.vsi_id = adapter->vsi_res->vsi_id;
651 vpi.flags = flags;
652 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
653 (u8 *)&vpi, sizeof(vpi));
654 }
655
656 /**
657 * i40evf_request_stats
658 * @adapter: adapter structure
659 *
660 * Request VSI statistics from PF.
661 **/
662 void i40evf_request_stats(struct i40evf_adapter *adapter)
663 {
664 struct i40e_virtchnl_queue_select vqs;
665
666 if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) {
667 /* no error message, this isn't crucial */
668 return;
669 }
670 adapter->current_op = I40E_VIRTCHNL_OP_GET_STATS;
671 vqs.vsi_id = adapter->vsi_res->vsi_id;
672 /* queue maps are ignored for this message - only the vsi is used */
673 if (i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_GET_STATS,
674 (u8 *)&vqs, sizeof(vqs)))
675 /* if the request failed, don't lock out others */
676 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
677 }
678 /**
679 * i40evf_request_reset
680 * @adapter: adapter structure
681 *
682 * Request that the PF reset this VF. No response is expected.
683 **/
684 void i40evf_request_reset(struct i40evf_adapter *adapter)
685 {
686 /* Don't check CURRENT_OP - this is always higher priority */
687 i40evf_send_pf_msg(adapter, I40E_VIRTCHNL_OP_RESET_VF, NULL, 0);
688 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
689 }
690
691 /**
692 * i40evf_virtchnl_completion
693 * @adapter: adapter structure
694 * @v_opcode: opcode sent by PF
695 * @v_retval: retval sent by PF
696 * @msg: message sent by PF
697 * @msglen: message length
698 *
699 * Asynchronous completion function for admin queue messages. Rather than busy
700 * wait, we fire off our requests and assume that no errors will be returned.
701 * This function handles the reply messages.
702 **/
703 void i40evf_virtchnl_completion(struct i40evf_adapter *adapter,
704 enum i40e_virtchnl_ops v_opcode,
705 i40e_status v_retval,
706 u8 *msg, u16 msglen)
707 {
708 struct net_device *netdev = adapter->netdev;
709
710 if (v_opcode == I40E_VIRTCHNL_OP_EVENT) {
711 struct i40e_virtchnl_pf_event *vpe =
712 (struct i40e_virtchnl_pf_event *)msg;
713 switch (vpe->event) {
714 case I40E_VIRTCHNL_EVENT_LINK_CHANGE:
715 adapter->link_up =
716 vpe->event_data.link_event.link_status;
717 if (adapter->link_up && !netif_carrier_ok(netdev)) {
718 dev_info(&adapter->pdev->dev, "NIC Link is Up\n");
719 netif_carrier_on(netdev);
720 netif_tx_wake_all_queues(netdev);
721 } else if (!adapter->link_up) {
722 dev_info(&adapter->pdev->dev, "NIC Link is Down\n");
723 netif_carrier_off(netdev);
724 netif_tx_stop_all_queues(netdev);
725 }
726 break;
727 case I40E_VIRTCHNL_EVENT_RESET_IMPENDING:
728 dev_info(&adapter->pdev->dev, "PF reset warning received\n");
729 if (!(adapter->flags & I40EVF_FLAG_RESET_PENDING)) {
730 adapter->flags |= I40EVF_FLAG_RESET_PENDING;
731 dev_info(&adapter->pdev->dev, "Scheduling reset task\n");
732 schedule_work(&adapter->reset_task);
733 }
734 break;
735 default:
736 dev_err(&adapter->pdev->dev, "Unknown event %d from PF\n",
737 vpe->event);
738 break;
739 }
740 return;
741 }
742 if (v_retval) {
743 switch (v_opcode) {
744 case I40E_VIRTCHNL_OP_ADD_VLAN:
745 dev_err(&adapter->pdev->dev, "Failed to add VLAN filter, error %s\n",
746 i40evf_stat_str(&adapter->hw, v_retval));
747 break;
748 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
749 dev_err(&adapter->pdev->dev, "Failed to add MAC filter, error %s\n",
750 i40evf_stat_str(&adapter->hw, v_retval));
751 break;
752 case I40E_VIRTCHNL_OP_DEL_VLAN:
753 dev_err(&adapter->pdev->dev, "Failed to delete VLAN filter, error %s\n",
754 i40evf_stat_str(&adapter->hw, v_retval));
755 break;
756 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
757 dev_err(&adapter->pdev->dev, "Failed to delete MAC filter, error %s\n",
758 i40evf_stat_str(&adapter->hw, v_retval));
759 break;
760 default:
761 dev_err(&adapter->pdev->dev, "PF returned error %d (%s) to our request %d\n",
762 v_retval,
763 i40evf_stat_str(&adapter->hw, v_retval),
764 v_opcode);
765 }
766 }
767 switch (v_opcode) {
768 case I40E_VIRTCHNL_OP_GET_STATS: {
769 struct i40e_eth_stats *stats =
770 (struct i40e_eth_stats *)msg;
771 adapter->net_stats.rx_packets = stats->rx_unicast +
772 stats->rx_multicast +
773 stats->rx_broadcast;
774 adapter->net_stats.tx_packets = stats->tx_unicast +
775 stats->tx_multicast +
776 stats->tx_broadcast;
777 adapter->net_stats.rx_bytes = stats->rx_bytes;
778 adapter->net_stats.tx_bytes = stats->tx_bytes;
779 adapter->net_stats.tx_errors = stats->tx_errors;
780 adapter->net_stats.rx_dropped = stats->rx_discards;
781 adapter->net_stats.tx_dropped = stats->tx_discards;
782 adapter->current_stats = *stats;
783 }
784 break;
785 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES: {
786 u16 len = sizeof(struct i40e_virtchnl_vf_resource) +
787 I40E_MAX_VF_VSI *
788 sizeof(struct i40e_virtchnl_vsi_resource);
789 memcpy(adapter->vf_res, msg, min(msglen, len));
790 i40e_vf_parse_hw_config(&adapter->hw, adapter->vf_res);
791 /* restore current mac address */
792 ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr);
793 i40evf_process_config(adapter);
794 }
795 break;
796 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
797 /* enable transmits */
798 i40evf_irq_enable(adapter, true);
799 netif_tx_start_all_queues(adapter->netdev);
800 netif_carrier_on(adapter->netdev);
801 break;
802 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
803 i40evf_free_all_tx_resources(adapter);
804 i40evf_free_all_rx_resources(adapter);
805 break;
806 case I40E_VIRTCHNL_OP_VERSION:
807 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
808 /* Don't display an error if we get these out of sequence.
809 * If the firmware needed to get kicked, we'll get these and
810 * it's no problem.
811 */
812 if (v_opcode != adapter->current_op)
813 return;
814 break;
815 default:
816 if (v_opcode != adapter->current_op)
817 dev_warn(&adapter->pdev->dev, "Expected response %d from PF, received %d\n",
818 adapter->current_op, v_opcode);
819 break;
820 } /* switch v_opcode */
821 adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN;
822 }
Linux kernel - Deliverables
This page took 0.062962 seconds and 5 git commands to generate.