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1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2013 - 2018 Intel Corporation. */
3
4#include "iavf.h"
5#include "iavf_prototype.h"
6
7/**
8 * iavf_send_pf_msg
9 * @adapter: adapter structure
10 * @op: virtual channel opcode
11 * @msg: pointer to message buffer
12 * @len: message length
13 *
14 * Send message to PF and print status if failure.
15 **/
16static int iavf_send_pf_msg(struct iavf_adapter *adapter,
17 enum virtchnl_ops op, u8 *msg, u16 len)
18{
19 struct iavf_hw *hw = &adapter->hw;
20 enum iavf_status status;
21
22 if (adapter->flags & IAVF_FLAG_PF_COMMS_FAILED)
23 return 0; /* nothing to see here, move along */
24
25 status = iavf_aq_send_msg_to_pf(hw, op, 0, msg, len, NULL);
26 if (status)
27 dev_dbg(&adapter->pdev->dev, "Unable to send opcode %d to PF, status %s, aq_err %s\n",
28 op, iavf_stat_str(hw, status),
29 iavf_aq_str(hw, hw->aq.asq_last_status));
30 return iavf_status_to_errno(status);
31}
32
33/**
34 * iavf_send_api_ver
35 * @adapter: adapter structure
36 *
37 * Send API version admin queue message to the PF. The reply is not checked
38 * in this function. Returns 0 if the message was successfully
39 * sent, or one of the IAVF_ADMIN_QUEUE_ERROR_ statuses if not.
40 **/
41int iavf_send_api_ver(struct iavf_adapter *adapter)
42{
43 struct virtchnl_version_info vvi;
44
45 vvi.major = VIRTCHNL_VERSION_MAJOR;
46 vvi.minor = VIRTCHNL_VERSION_MINOR;
47
48 return iavf_send_pf_msg(adapter, VIRTCHNL_OP_VERSION, (u8 *)&vvi,
49 sizeof(vvi));
50}
51
52/**
53 * iavf_poll_virtchnl_msg
54 * @hw: HW configuration structure
55 * @event: event to populate on success
56 * @op_to_poll: requested virtchnl op to poll for
57 *
58 * Initialize poll for virtchnl msg matching the requested_op. Returns 0
59 * if a message of the correct opcode is in the queue or an error code
60 * if no message matching the op code is waiting and other failures.
61 */
62static int
63iavf_poll_virtchnl_msg(struct iavf_hw *hw, struct iavf_arq_event_info *event,
64 enum virtchnl_ops op_to_poll)
65{
66 enum virtchnl_ops received_op;
67 enum iavf_status status;
68 u32 v_retval;
69
70 while (1) {
71 /* When the AQ is empty, iavf_clean_arq_element will return
72 * nonzero and this loop will terminate.
73 */
74 status = iavf_clean_arq_element(hw, event, NULL);
75 if (status != IAVF_SUCCESS)
76 return iavf_status_to_errno(status);
77 received_op =
78 (enum virtchnl_ops)le32_to_cpu(event->desc.cookie_high);
79 if (op_to_poll == received_op)
80 break;
81 }
82
83 v_retval = le32_to_cpu(event->desc.cookie_low);
84 return virtchnl_status_to_errno((enum virtchnl_status_code)v_retval);
85}
86
87/**
88 * iavf_verify_api_ver
89 * @adapter: adapter structure
90 *
91 * Compare API versions with the PF. Must be called after admin queue is
92 * initialized. Returns 0 if API versions match, -EIO if they do not,
93 * IAVF_ERR_ADMIN_QUEUE_NO_WORK if the admin queue is empty, and any errors
94 * from the firmware are propagated.
95 **/
96int iavf_verify_api_ver(struct iavf_adapter *adapter)
97{
98 struct iavf_arq_event_info event;
99 int err;
100
101 event.buf_len = IAVF_MAX_AQ_BUF_SIZE;
102 event.msg_buf = kzalloc(IAVF_MAX_AQ_BUF_SIZE, GFP_KERNEL);
103 if (!event.msg_buf)
104 return -ENOMEM;
105
106 err = iavf_poll_virtchnl_msg(&adapter->hw, &event, VIRTCHNL_OP_VERSION);
107 if (!err) {
108 struct virtchnl_version_info *pf_vvi =
109 (struct virtchnl_version_info *)event.msg_buf;
110 adapter->pf_version = *pf_vvi;
111
112 if (pf_vvi->major > VIRTCHNL_VERSION_MAJOR ||
113 (pf_vvi->major == VIRTCHNL_VERSION_MAJOR &&
114 pf_vvi->minor > VIRTCHNL_VERSION_MINOR))
115 err = -EIO;
116 }
117
118 kfree(event.msg_buf);
119
120 return err;
121}
122
123/**
124 * iavf_send_vf_config_msg
125 * @adapter: adapter structure
126 *
127 * Send VF configuration request admin queue message to the PF. The reply
128 * is not checked in this function. Returns 0 if the message was
129 * successfully sent, or one of the IAVF_ADMIN_QUEUE_ERROR_ statuses if not.
130 **/
131int iavf_send_vf_config_msg(struct iavf_adapter *adapter)
132{
133 u32 caps;
134
135 caps = VIRTCHNL_VF_OFFLOAD_L2 |
136 VIRTCHNL_VF_OFFLOAD_RSS_PF |
137 VIRTCHNL_VF_OFFLOAD_RSS_AQ |
138 VIRTCHNL_VF_OFFLOAD_RSS_REG |
139 VIRTCHNL_VF_OFFLOAD_VLAN |
140 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR |
141 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2 |
142 VIRTCHNL_VF_OFFLOAD_ENCAP |
143 VIRTCHNL_VF_OFFLOAD_VLAN_V2 |
144 VIRTCHNL_VF_OFFLOAD_CRC |
145 VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM |
146 VIRTCHNL_VF_OFFLOAD_REQ_QUEUES |
147 VIRTCHNL_VF_OFFLOAD_ADQ |
148 VIRTCHNL_VF_OFFLOAD_USO |
149 VIRTCHNL_VF_OFFLOAD_FDIR_PF |
150 VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF |
151 VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
152
153 adapter->current_op = VIRTCHNL_OP_GET_VF_RESOURCES;
154 adapter->aq_required &= ~IAVF_FLAG_AQ_GET_CONFIG;
155 if (PF_IS_V11(adapter))
156 return iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_VF_RESOURCES,
157 (u8 *)&caps, sizeof(caps));
158 else
159 return iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_VF_RESOURCES,
160 NULL, 0);
161}
162
163int iavf_send_vf_offload_vlan_v2_msg(struct iavf_adapter *adapter)
164{
165 adapter->aq_required &= ~IAVF_FLAG_AQ_GET_OFFLOAD_VLAN_V2_CAPS;
166
167 if (!VLAN_V2_ALLOWED(adapter))
168 return -EOPNOTSUPP;
169
170 adapter->current_op = VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS;
171
172 return iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS,
173 NULL, 0);
174}
175
176/**
177 * iavf_validate_num_queues
178 * @adapter: adapter structure
179 *
180 * Validate that the number of queues the PF has sent in
181 * VIRTCHNL_OP_GET_VF_RESOURCES is not larger than the VF can handle.
182 **/
183static void iavf_validate_num_queues(struct iavf_adapter *adapter)
184{
185 if (adapter->vf_res->num_queue_pairs > IAVF_MAX_REQ_QUEUES) {
186 struct virtchnl_vsi_resource *vsi_res;
187 int i;
188
189 dev_info(&adapter->pdev->dev, "Received %d queues, but can only have a max of %d\n",
190 adapter->vf_res->num_queue_pairs,
191 IAVF_MAX_REQ_QUEUES);
192 dev_info(&adapter->pdev->dev, "Fixing by reducing queues to %d\n",
193 IAVF_MAX_REQ_QUEUES);
194 adapter->vf_res->num_queue_pairs = IAVF_MAX_REQ_QUEUES;
195 for (i = 0; i < adapter->vf_res->num_vsis; i++) {
196 vsi_res = &adapter->vf_res->vsi_res[i];
197 vsi_res->num_queue_pairs = IAVF_MAX_REQ_QUEUES;
198 }
199 }
200}
201
202/**
203 * iavf_get_vf_config
204 * @adapter: private adapter structure
205 *
206 * Get VF configuration from PF and populate hw structure. Must be called after
207 * admin queue is initialized. Busy waits until response is received from PF,
208 * with maximum timeout. Response from PF is returned in the buffer for further
209 * processing by the caller.
210 **/
211int iavf_get_vf_config(struct iavf_adapter *adapter)
212{
213 struct iavf_hw *hw = &adapter->hw;
214 struct iavf_arq_event_info event;
215 u16 len;
216 int err;
217
218 len = IAVF_VIRTCHNL_VF_RESOURCE_SIZE;
219 event.buf_len = len;
220 event.msg_buf = kzalloc(len, GFP_KERNEL);
221 if (!event.msg_buf)
222 return -ENOMEM;
223
224 err = iavf_poll_virtchnl_msg(hw, &event, VIRTCHNL_OP_GET_VF_RESOURCES);
225 memcpy(adapter->vf_res, event.msg_buf, min(event.msg_len, len));
226
227 /* some PFs send more queues than we should have so validate that
228 * we aren't getting too many queues
229 */
230 if (!err)
231 iavf_validate_num_queues(adapter);
232 iavf_vf_parse_hw_config(hw, adapter->vf_res);
233
234 kfree(event.msg_buf);
235
236 return err;
237}
238
239int iavf_get_vf_vlan_v2_caps(struct iavf_adapter *adapter)
240{
241 struct iavf_arq_event_info event;
242 int err;
243 u16 len;
244
245 len = sizeof(struct virtchnl_vlan_caps);
246 event.buf_len = len;
247 event.msg_buf = kzalloc(len, GFP_KERNEL);
248 if (!event.msg_buf)
249 return -ENOMEM;
250
251 err = iavf_poll_virtchnl_msg(&adapter->hw, &event,
252 VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS);
253 if (!err)
254 memcpy(&adapter->vlan_v2_caps, event.msg_buf,
255 min(event.msg_len, len));
256
257 kfree(event.msg_buf);
258
259 return err;
260}
261
262/**
263 * iavf_configure_queues
264 * @adapter: adapter structure
265 *
266 * Request that the PF set up our (previously allocated) queues.
267 **/
268void iavf_configure_queues(struct iavf_adapter *adapter)
269{
270 struct virtchnl_vsi_queue_config_info *vqci;
271 int i, max_frame = adapter->vf_res->max_mtu;
272 int pairs = adapter->num_active_queues;
273 struct virtchnl_queue_pair_info *vqpi;
274 size_t len;
275
276 if (max_frame > IAVF_MAX_RXBUFFER || !max_frame)
277 max_frame = IAVF_MAX_RXBUFFER;
278
279 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
280 /* bail because we already have a command pending */
281 dev_err(&adapter->pdev->dev, "Cannot configure queues, command %d pending\n",
282 adapter->current_op);
283 return;
284 }
285 adapter->current_op = VIRTCHNL_OP_CONFIG_VSI_QUEUES;
286 len = virtchnl_struct_size(vqci, qpair, pairs);
287 vqci = kzalloc(len, GFP_KERNEL);
288 if (!vqci)
289 return;
290
291 /* Limit maximum frame size when jumbo frames is not enabled */
292 if (!(adapter->flags & IAVF_FLAG_LEGACY_RX) &&
293 (adapter->netdev->mtu <= ETH_DATA_LEN))
294 max_frame = IAVF_RXBUFFER_1536 - NET_IP_ALIGN;
295
296 vqci->vsi_id = adapter->vsi_res->vsi_id;
297 vqci->num_queue_pairs = pairs;
298 vqpi = vqci->qpair;
299 /* Size check is not needed here - HW max is 16 queue pairs, and we
300 * can fit info for 31 of them into the AQ buffer before it overflows.
301 */
302 for (i = 0; i < pairs; i++) {
303 vqpi->txq.vsi_id = vqci->vsi_id;
304 vqpi->txq.queue_id = i;
305 vqpi->txq.ring_len = adapter->tx_rings[i].count;
306 vqpi->txq.dma_ring_addr = adapter->tx_rings[i].dma;
307 vqpi->rxq.vsi_id = vqci->vsi_id;
308 vqpi->rxq.queue_id = i;
309 vqpi->rxq.ring_len = adapter->rx_rings[i].count;
310 vqpi->rxq.dma_ring_addr = adapter->rx_rings[i].dma;
311 vqpi->rxq.max_pkt_size = max_frame;
312 vqpi->rxq.databuffer_size =
313 ALIGN(adapter->rx_rings[i].rx_buf_len,
314 BIT_ULL(IAVF_RXQ_CTX_DBUFF_SHIFT));
315 if (CRC_OFFLOAD_ALLOWED(adapter))
316 vqpi->rxq.crc_disable = !!(adapter->netdev->features &
317 NETIF_F_RXFCS);
318 vqpi++;
319 }
320
321 adapter->aq_required &= ~IAVF_FLAG_AQ_CONFIGURE_QUEUES;
322 iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
323 (u8 *)vqci, len);
324 kfree(vqci);
325}
326
327/**
328 * iavf_enable_queues
329 * @adapter: adapter structure
330 *
331 * Request that the PF enable all of our queues.
332 **/
333void iavf_enable_queues(struct iavf_adapter *adapter)
334{
335 struct virtchnl_queue_select vqs;
336
337 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
338 /* bail because we already have a command pending */
339 dev_err(&adapter->pdev->dev, "Cannot enable queues, command %d pending\n",
340 adapter->current_op);
341 return;
342 }
343 adapter->current_op = VIRTCHNL_OP_ENABLE_QUEUES;
344 vqs.vsi_id = adapter->vsi_res->vsi_id;
345 vqs.tx_queues = BIT(adapter->num_active_queues) - 1;
346 vqs.rx_queues = vqs.tx_queues;
347 adapter->aq_required &= ~IAVF_FLAG_AQ_ENABLE_QUEUES;
348 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ENABLE_QUEUES,
349 (u8 *)&vqs, sizeof(vqs));
350}
351
352/**
353 * iavf_disable_queues
354 * @adapter: adapter structure
355 *
356 * Request that the PF disable all of our queues.
357 **/
358void iavf_disable_queues(struct iavf_adapter *adapter)
359{
360 struct virtchnl_queue_select vqs;
361
362 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
363 /* bail because we already have a command pending */
364 dev_err(&adapter->pdev->dev, "Cannot disable queues, command %d pending\n",
365 adapter->current_op);
366 return;
367 }
368 adapter->current_op = VIRTCHNL_OP_DISABLE_QUEUES;
369 vqs.vsi_id = adapter->vsi_res->vsi_id;
370 vqs.tx_queues = BIT(adapter->num_active_queues) - 1;
371 vqs.rx_queues = vqs.tx_queues;
372 adapter->aq_required &= ~IAVF_FLAG_AQ_DISABLE_QUEUES;
373 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DISABLE_QUEUES,
374 (u8 *)&vqs, sizeof(vqs));
375}
376
377/**
378 * iavf_map_queues
379 * @adapter: adapter structure
380 *
381 * Request that the PF map queues to interrupt vectors. Misc causes, including
382 * admin queue, are always mapped to vector 0.
383 **/
384void iavf_map_queues(struct iavf_adapter *adapter)
385{
386 struct virtchnl_irq_map_info *vimi;
387 struct virtchnl_vector_map *vecmap;
388 struct iavf_q_vector *q_vector;
389 int v_idx, q_vectors;
390 size_t len;
391
392 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
393 /* bail because we already have a command pending */
394 dev_err(&adapter->pdev->dev, "Cannot map queues to vectors, command %d pending\n",
395 adapter->current_op);
396 return;
397 }
398 adapter->current_op = VIRTCHNL_OP_CONFIG_IRQ_MAP;
399
400 q_vectors = adapter->num_msix_vectors - NONQ_VECS;
401
402 len = virtchnl_struct_size(vimi, vecmap, adapter->num_msix_vectors);
403 vimi = kzalloc(len, GFP_KERNEL);
404 if (!vimi)
405 return;
406
407 vimi->num_vectors = adapter->num_msix_vectors;
408 /* Queue vectors first */
409 for (v_idx = 0; v_idx < q_vectors; v_idx++) {
410 q_vector = &adapter->q_vectors[v_idx];
411 vecmap = &vimi->vecmap[v_idx];
412
413 vecmap->vsi_id = adapter->vsi_res->vsi_id;
414 vecmap->vector_id = v_idx + NONQ_VECS;
415 vecmap->txq_map = q_vector->ring_mask;
416 vecmap->rxq_map = q_vector->ring_mask;
417 vecmap->rxitr_idx = IAVF_RX_ITR;
418 vecmap->txitr_idx = IAVF_TX_ITR;
419 }
420 /* Misc vector last - this is only for AdminQ messages */
421 vecmap = &vimi->vecmap[v_idx];
422 vecmap->vsi_id = adapter->vsi_res->vsi_id;
423 vecmap->vector_id = 0;
424 vecmap->txq_map = 0;
425 vecmap->rxq_map = 0;
426
427 adapter->aq_required &= ~IAVF_FLAG_AQ_MAP_VECTORS;
428 iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_IRQ_MAP,
429 (u8 *)vimi, len);
430 kfree(vimi);
431}
432
433/**
434 * iavf_set_mac_addr_type - Set the correct request type from the filter type
435 * @virtchnl_ether_addr: pointer to requested list element
436 * @filter: pointer to requested filter
437 **/
438static void
439iavf_set_mac_addr_type(struct virtchnl_ether_addr *virtchnl_ether_addr,
440 const struct iavf_mac_filter *filter)
441{
442 virtchnl_ether_addr->type = filter->is_primary ?
443 VIRTCHNL_ETHER_ADDR_PRIMARY :
444 VIRTCHNL_ETHER_ADDR_EXTRA;
445}
446
447/**
448 * iavf_add_ether_addrs
449 * @adapter: adapter structure
450 *
451 * Request that the PF add one or more addresses to our filters.
452 **/
453void iavf_add_ether_addrs(struct iavf_adapter *adapter)
454{
455 struct virtchnl_ether_addr_list *veal;
456 struct iavf_mac_filter *f;
457 int i = 0, count = 0;
458 bool more = false;
459 size_t len;
460
461 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
462 /* bail because we already have a command pending */
463 dev_err(&adapter->pdev->dev, "Cannot add filters, command %d pending\n",
464 adapter->current_op);
465 return;
466 }
467
468 spin_lock_bh(&adapter->mac_vlan_list_lock);
469
470 list_for_each_entry(f, &adapter->mac_filter_list, list) {
471 if (f->add)
472 count++;
473 }
474 if (!count) {
475 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_MAC_FILTER;
476 spin_unlock_bh(&adapter->mac_vlan_list_lock);
477 return;
478 }
479 adapter->current_op = VIRTCHNL_OP_ADD_ETH_ADDR;
480
481 len = virtchnl_struct_size(veal, list, count);
482 if (len > IAVF_MAX_AQ_BUF_SIZE) {
483 dev_warn(&adapter->pdev->dev, "Too many add MAC changes in one request\n");
484 while (len > IAVF_MAX_AQ_BUF_SIZE)
485 len = virtchnl_struct_size(veal, list, --count);
486 more = true;
487 }
488
489 veal = kzalloc(len, GFP_ATOMIC);
490 if (!veal) {
491 spin_unlock_bh(&adapter->mac_vlan_list_lock);
492 return;
493 }
494
495 veal->vsi_id = adapter->vsi_res->vsi_id;
496 veal->num_elements = count;
497 list_for_each_entry(f, &adapter->mac_filter_list, list) {
498 if (f->add) {
499 ether_addr_copy(veal->list[i].addr, f->macaddr);
500 iavf_set_mac_addr_type(&veal->list[i], f);
501 i++;
502 f->add = false;
503 if (i == count)
504 break;
505 }
506 }
507 if (!more)
508 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_MAC_FILTER;
509
510 spin_unlock_bh(&adapter->mac_vlan_list_lock);
511
512 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_ETH_ADDR, (u8 *)veal, len);
513 kfree(veal);
514}
515
516/**
517 * iavf_del_ether_addrs
518 * @adapter: adapter structure
519 *
520 * Request that the PF remove one or more addresses from our filters.
521 **/
522void iavf_del_ether_addrs(struct iavf_adapter *adapter)
523{
524 struct virtchnl_ether_addr_list *veal;
525 struct iavf_mac_filter *f, *ftmp;
526 int i = 0, count = 0;
527 bool more = false;
528 size_t len;
529
530 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
531 /* bail because we already have a command pending */
532 dev_err(&adapter->pdev->dev, "Cannot remove filters, command %d pending\n",
533 adapter->current_op);
534 return;
535 }
536
537 spin_lock_bh(&adapter->mac_vlan_list_lock);
538
539 list_for_each_entry(f, &adapter->mac_filter_list, list) {
540 if (f->remove)
541 count++;
542 }
543 if (!count) {
544 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_MAC_FILTER;
545 spin_unlock_bh(&adapter->mac_vlan_list_lock);
546 return;
547 }
548 adapter->current_op = VIRTCHNL_OP_DEL_ETH_ADDR;
549
550 len = virtchnl_struct_size(veal, list, count);
551 if (len > IAVF_MAX_AQ_BUF_SIZE) {
552 dev_warn(&adapter->pdev->dev, "Too many delete MAC changes in one request\n");
553 while (len > IAVF_MAX_AQ_BUF_SIZE)
554 len = virtchnl_struct_size(veal, list, --count);
555 more = true;
556 }
557 veal = kzalloc(len, GFP_ATOMIC);
558 if (!veal) {
559 spin_unlock_bh(&adapter->mac_vlan_list_lock);
560 return;
561 }
562
563 veal->vsi_id = adapter->vsi_res->vsi_id;
564 veal->num_elements = count;
565 list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
566 if (f->remove) {
567 ether_addr_copy(veal->list[i].addr, f->macaddr);
568 iavf_set_mac_addr_type(&veal->list[i], f);
569 i++;
570 list_del(&f->list);
571 kfree(f);
572 if (i == count)
573 break;
574 }
575 }
576 if (!more)
577 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_MAC_FILTER;
578
579 spin_unlock_bh(&adapter->mac_vlan_list_lock);
580
581 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_ETH_ADDR, (u8 *)veal, len);
582 kfree(veal);
583}
584
585/**
586 * iavf_mac_add_ok
587 * @adapter: adapter structure
588 *
589 * Submit list of filters based on PF response.
590 **/
591static void iavf_mac_add_ok(struct iavf_adapter *adapter)
592{
593 struct iavf_mac_filter *f, *ftmp;
594
595 spin_lock_bh(&adapter->mac_vlan_list_lock);
596 list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
597 f->is_new_mac = false;
598 if (!f->add && !f->add_handled)
599 f->add_handled = true;
600 }
601 spin_unlock_bh(&adapter->mac_vlan_list_lock);
602}
603
604/**
605 * iavf_mac_add_reject
606 * @adapter: adapter structure
607 *
608 * Remove filters from list based on PF response.
609 **/
610static void iavf_mac_add_reject(struct iavf_adapter *adapter)
611{
612 struct net_device *netdev = adapter->netdev;
613 struct iavf_mac_filter *f, *ftmp;
614
615 spin_lock_bh(&adapter->mac_vlan_list_lock);
616 list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
617 if (f->remove && ether_addr_equal(f->macaddr, netdev->dev_addr))
618 f->remove = false;
619
620 if (!f->add && !f->add_handled)
621 f->add_handled = true;
622
623 if (f->is_new_mac) {
624 list_del(&f->list);
625 kfree(f);
626 }
627 }
628 spin_unlock_bh(&adapter->mac_vlan_list_lock);
629}
630
631/**
632 * iavf_vlan_add_reject
633 * @adapter: adapter structure
634 *
635 * Remove VLAN filters from list based on PF response.
636 **/
637static void iavf_vlan_add_reject(struct iavf_adapter *adapter)
638{
639 struct iavf_vlan_filter *f, *ftmp;
640
641 spin_lock_bh(&adapter->mac_vlan_list_lock);
642 list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
643 if (f->state == IAVF_VLAN_IS_NEW) {
644 list_del(&f->list);
645 kfree(f);
646 adapter->num_vlan_filters--;
647 }
648 }
649 spin_unlock_bh(&adapter->mac_vlan_list_lock);
650}
651
652/**
653 * iavf_add_vlans
654 * @adapter: adapter structure
655 *
656 * Request that the PF add one or more VLAN filters to our VSI.
657 **/
658void iavf_add_vlans(struct iavf_adapter *adapter)
659{
660 int len, i = 0, count = 0;
661 struct iavf_vlan_filter *f;
662 bool more = false;
663
664 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
665 /* bail because we already have a command pending */
666 dev_err(&adapter->pdev->dev, "Cannot add VLANs, command %d pending\n",
667 adapter->current_op);
668 return;
669 }
670
671 spin_lock_bh(&adapter->mac_vlan_list_lock);
672
673 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
674 if (f->state == IAVF_VLAN_ADD)
675 count++;
676 }
677 if (!count || !VLAN_FILTERING_ALLOWED(adapter)) {
678 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_VLAN_FILTER;
679 spin_unlock_bh(&adapter->mac_vlan_list_lock);
680 return;
681 }
682
683 if (VLAN_ALLOWED(adapter)) {
684 struct virtchnl_vlan_filter_list *vvfl;
685
686 adapter->current_op = VIRTCHNL_OP_ADD_VLAN;
687
688 len = virtchnl_struct_size(vvfl, vlan_id, count);
689 if (len > IAVF_MAX_AQ_BUF_SIZE) {
690 dev_warn(&adapter->pdev->dev, "Too many add VLAN changes in one request\n");
691 while (len > IAVF_MAX_AQ_BUF_SIZE)
692 len = virtchnl_struct_size(vvfl, vlan_id,
693 --count);
694 more = true;
695 }
696 vvfl = kzalloc(len, GFP_ATOMIC);
697 if (!vvfl) {
698 spin_unlock_bh(&adapter->mac_vlan_list_lock);
699 return;
700 }
701
702 vvfl->vsi_id = adapter->vsi_res->vsi_id;
703 vvfl->num_elements = count;
704 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
705 if (f->state == IAVF_VLAN_ADD) {
706 vvfl->vlan_id[i] = f->vlan.vid;
707 i++;
708 f->state = IAVF_VLAN_IS_NEW;
709 if (i == count)
710 break;
711 }
712 }
713 if (!more)
714 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_VLAN_FILTER;
715
716 spin_unlock_bh(&adapter->mac_vlan_list_lock);
717
718 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
719 kfree(vvfl);
720 } else {
721 u16 max_vlans = adapter->vlan_v2_caps.filtering.max_filters;
722 u16 current_vlans = iavf_get_num_vlans_added(adapter);
723 struct virtchnl_vlan_filter_list_v2 *vvfl_v2;
724
725 adapter->current_op = VIRTCHNL_OP_ADD_VLAN_V2;
726
727 if ((count + current_vlans) > max_vlans &&
728 current_vlans < max_vlans) {
729 count = max_vlans - iavf_get_num_vlans_added(adapter);
730 more = true;
731 }
732
733 len = virtchnl_struct_size(vvfl_v2, filters, count);
734 if (len > IAVF_MAX_AQ_BUF_SIZE) {
735 dev_warn(&adapter->pdev->dev, "Too many add VLAN changes in one request\n");
736 while (len > IAVF_MAX_AQ_BUF_SIZE)
737 len = virtchnl_struct_size(vvfl_v2, filters,
738 --count);
739 more = true;
740 }
741
742 vvfl_v2 = kzalloc(len, GFP_ATOMIC);
743 if (!vvfl_v2) {
744 spin_unlock_bh(&adapter->mac_vlan_list_lock);
745 return;
746 }
747
748 vvfl_v2->vport_id = adapter->vsi_res->vsi_id;
749 vvfl_v2->num_elements = count;
750 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
751 if (f->state == IAVF_VLAN_ADD) {
752 struct virtchnl_vlan_supported_caps *filtering_support =
753 &adapter->vlan_v2_caps.filtering.filtering_support;
754 struct virtchnl_vlan *vlan;
755
756 if (i == count)
757 break;
758
759 /* give priority over outer if it's enabled */
760 if (filtering_support->outer)
761 vlan = &vvfl_v2->filters[i].outer;
762 else
763 vlan = &vvfl_v2->filters[i].inner;
764
765 vlan->tci = f->vlan.vid;
766 vlan->tpid = f->vlan.tpid;
767
768 i++;
769 f->state = IAVF_VLAN_IS_NEW;
770 }
771 }
772
773 if (!more)
774 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_VLAN_FILTER;
775
776 spin_unlock_bh(&adapter->mac_vlan_list_lock);
777
778 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_VLAN_V2,
779 (u8 *)vvfl_v2, len);
780 kfree(vvfl_v2);
781 }
782}
783
784/**
785 * iavf_del_vlans
786 * @adapter: adapter structure
787 *
788 * Request that the PF remove one or more VLAN filters from our VSI.
789 **/
790void iavf_del_vlans(struct iavf_adapter *adapter)
791{
792 struct iavf_vlan_filter *f, *ftmp;
793 int len, i = 0, count = 0;
794 bool more = false;
795
796 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
797 /* bail because we already have a command pending */
798 dev_err(&adapter->pdev->dev, "Cannot remove VLANs, command %d pending\n",
799 adapter->current_op);
800 return;
801 }
802
803 spin_lock_bh(&adapter->mac_vlan_list_lock);
804
805 list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
806 /* since VLAN capabilities are not allowed, we dont want to send
807 * a VLAN delete request because it will most likely fail and
808 * create unnecessary errors/noise, so just free the VLAN
809 * filters marked for removal to enable bailing out before
810 * sending a virtchnl message
811 */
812 if (f->state == IAVF_VLAN_REMOVE &&
813 !VLAN_FILTERING_ALLOWED(adapter)) {
814 list_del(&f->list);
815 kfree(f);
816 adapter->num_vlan_filters--;
817 } else if (f->state == IAVF_VLAN_DISABLE &&
818 !VLAN_FILTERING_ALLOWED(adapter)) {
819 f->state = IAVF_VLAN_INACTIVE;
820 } else if (f->state == IAVF_VLAN_REMOVE ||
821 f->state == IAVF_VLAN_DISABLE) {
822 count++;
823 }
824 }
825 if (!count || !VLAN_FILTERING_ALLOWED(adapter)) {
826 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_VLAN_FILTER;
827 spin_unlock_bh(&adapter->mac_vlan_list_lock);
828 return;
829 }
830
831 if (VLAN_ALLOWED(adapter)) {
832 struct virtchnl_vlan_filter_list *vvfl;
833
834 adapter->current_op = VIRTCHNL_OP_DEL_VLAN;
835
836 len = virtchnl_struct_size(vvfl, vlan_id, count);
837 if (len > IAVF_MAX_AQ_BUF_SIZE) {
838 dev_warn(&adapter->pdev->dev, "Too many delete VLAN changes in one request\n");
839 while (len > IAVF_MAX_AQ_BUF_SIZE)
840 len = virtchnl_struct_size(vvfl, vlan_id,
841 --count);
842 more = true;
843 }
844 vvfl = kzalloc(len, GFP_ATOMIC);
845 if (!vvfl) {
846 spin_unlock_bh(&adapter->mac_vlan_list_lock);
847 return;
848 }
849
850 vvfl->vsi_id = adapter->vsi_res->vsi_id;
851 vvfl->num_elements = count;
852 list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
853 if (f->state == IAVF_VLAN_DISABLE) {
854 vvfl->vlan_id[i] = f->vlan.vid;
855 f->state = IAVF_VLAN_INACTIVE;
856 i++;
857 if (i == count)
858 break;
859 } else if (f->state == IAVF_VLAN_REMOVE) {
860 vvfl->vlan_id[i] = f->vlan.vid;
861 list_del(&f->list);
862 kfree(f);
863 adapter->num_vlan_filters--;
864 i++;
865 if (i == count)
866 break;
867 }
868 }
869
870 if (!more)
871 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_VLAN_FILTER;
872
873 spin_unlock_bh(&adapter->mac_vlan_list_lock);
874
875 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
876 kfree(vvfl);
877 } else {
878 struct virtchnl_vlan_filter_list_v2 *vvfl_v2;
879
880 adapter->current_op = VIRTCHNL_OP_DEL_VLAN_V2;
881
882 len = virtchnl_struct_size(vvfl_v2, filters, count);
883 if (len > IAVF_MAX_AQ_BUF_SIZE) {
884 dev_warn(&adapter->pdev->dev, "Too many add VLAN changes in one request\n");
885 while (len > IAVF_MAX_AQ_BUF_SIZE)
886 len = virtchnl_struct_size(vvfl_v2, filters,
887 --count);
888 more = true;
889 }
890
891 vvfl_v2 = kzalloc(len, GFP_ATOMIC);
892 if (!vvfl_v2) {
893 spin_unlock_bh(&adapter->mac_vlan_list_lock);
894 return;
895 }
896
897 vvfl_v2->vport_id = adapter->vsi_res->vsi_id;
898 vvfl_v2->num_elements = count;
899 list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
900 if (f->state == IAVF_VLAN_DISABLE ||
901 f->state == IAVF_VLAN_REMOVE) {
902 struct virtchnl_vlan_supported_caps *filtering_support =
903 &adapter->vlan_v2_caps.filtering.filtering_support;
904 struct virtchnl_vlan *vlan;
905
906 /* give priority over outer if it's enabled */
907 if (filtering_support->outer)
908 vlan = &vvfl_v2->filters[i].outer;
909 else
910 vlan = &vvfl_v2->filters[i].inner;
911
912 vlan->tci = f->vlan.vid;
913 vlan->tpid = f->vlan.tpid;
914
915 if (f->state == IAVF_VLAN_DISABLE) {
916 f->state = IAVF_VLAN_INACTIVE;
917 } else {
918 list_del(&f->list);
919 kfree(f);
920 adapter->num_vlan_filters--;
921 }
922 i++;
923 if (i == count)
924 break;
925 }
926 }
927
928 if (!more)
929 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_VLAN_FILTER;
930
931 spin_unlock_bh(&adapter->mac_vlan_list_lock);
932
933 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_VLAN_V2,
934 (u8 *)vvfl_v2, len);
935 kfree(vvfl_v2);
936 }
937}
938
939/**
940 * iavf_set_promiscuous
941 * @adapter: adapter structure
942 *
943 * Request that the PF enable promiscuous mode for our VSI.
944 **/
945void iavf_set_promiscuous(struct iavf_adapter *adapter)
946{
947 struct net_device *netdev = adapter->netdev;
948 struct virtchnl_promisc_info vpi;
949 unsigned int flags;
950
951 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
952 /* bail because we already have a command pending */
953 dev_err(&adapter->pdev->dev, "Cannot set promiscuous mode, command %d pending\n",
954 adapter->current_op);
955 return;
956 }
957
958 /* prevent changes to promiscuous flags */
959 spin_lock_bh(&adapter->current_netdev_promisc_flags_lock);
960
961 /* sanity check to prevent duplicate AQ calls */
962 if (!iavf_promiscuous_mode_changed(adapter)) {
963 adapter->aq_required &= ~IAVF_FLAG_AQ_CONFIGURE_PROMISC_MODE;
964 dev_dbg(&adapter->pdev->dev, "No change in promiscuous mode\n");
965 /* allow changes to promiscuous flags */
966 spin_unlock_bh(&adapter->current_netdev_promisc_flags_lock);
967 return;
968 }
969
970 /* there are 2 bits, but only 3 states */
971 if (!(netdev->flags & IFF_PROMISC) &&
972 netdev->flags & IFF_ALLMULTI) {
973 /* State 1 - only multicast promiscuous mode enabled
974 * - !IFF_PROMISC && IFF_ALLMULTI
975 */
976 flags = FLAG_VF_MULTICAST_PROMISC;
977 adapter->current_netdev_promisc_flags |= IFF_ALLMULTI;
978 adapter->current_netdev_promisc_flags &= ~IFF_PROMISC;
979 dev_info(&adapter->pdev->dev, "Entering multicast promiscuous mode\n");
980 } else if (!(netdev->flags & IFF_PROMISC) &&
981 !(netdev->flags & IFF_ALLMULTI)) {
982 /* State 2 - unicast/multicast promiscuous mode disabled
983 * - !IFF_PROMISC && !IFF_ALLMULTI
984 */
985 flags = 0;
986 adapter->current_netdev_promisc_flags &=
987 ~(IFF_PROMISC | IFF_ALLMULTI);
988 dev_info(&adapter->pdev->dev, "Leaving promiscuous mode\n");
989 } else {
990 /* State 3 - unicast/multicast promiscuous mode enabled
991 * - IFF_PROMISC && IFF_ALLMULTI
992 * - IFF_PROMISC && !IFF_ALLMULTI
993 */
994 flags = FLAG_VF_UNICAST_PROMISC | FLAG_VF_MULTICAST_PROMISC;
995 adapter->current_netdev_promisc_flags |= IFF_PROMISC;
996 if (netdev->flags & IFF_ALLMULTI)
997 adapter->current_netdev_promisc_flags |= IFF_ALLMULTI;
998 else
999 adapter->current_netdev_promisc_flags &= ~IFF_ALLMULTI;
1000
1001 dev_info(&adapter->pdev->dev, "Entering promiscuous mode\n");
1002 }
1003
1004 adapter->aq_required &= ~IAVF_FLAG_AQ_CONFIGURE_PROMISC_MODE;
1005
1006 /* allow changes to promiscuous flags */
1007 spin_unlock_bh(&adapter->current_netdev_promisc_flags_lock);
1008
1009 adapter->current_op = VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
1010 vpi.vsi_id = adapter->vsi_res->vsi_id;
1011 vpi.flags = flags;
1012 iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1013 (u8 *)&vpi, sizeof(vpi));
1014}
1015
1016/**
1017 * iavf_request_stats
1018 * @adapter: adapter structure
1019 *
1020 * Request VSI statistics from PF.
1021 **/
1022void iavf_request_stats(struct iavf_adapter *adapter)
1023{
1024 struct virtchnl_queue_select vqs;
1025
1026 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1027 /* no error message, this isn't crucial */
1028 return;
1029 }
1030
1031 adapter->aq_required &= ~IAVF_FLAG_AQ_REQUEST_STATS;
1032 adapter->current_op = VIRTCHNL_OP_GET_STATS;
1033 vqs.vsi_id = adapter->vsi_res->vsi_id;
1034 /* queue maps are ignored for this message - only the vsi is used */
1035 if (iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_STATS, (u8 *)&vqs,
1036 sizeof(vqs)))
1037 /* if the request failed, don't lock out others */
1038 adapter->current_op = VIRTCHNL_OP_UNKNOWN;
1039}
1040
1041/**
1042 * iavf_get_hena
1043 * @adapter: adapter structure
1044 *
1045 * Request hash enable capabilities from PF
1046 **/
1047void iavf_get_hena(struct iavf_adapter *adapter)
1048{
1049 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1050 /* bail because we already have a command pending */
1051 dev_err(&adapter->pdev->dev, "Cannot get RSS hash capabilities, command %d pending\n",
1052 adapter->current_op);
1053 return;
1054 }
1055 adapter->current_op = VIRTCHNL_OP_GET_RSS_HENA_CAPS;
1056 adapter->aq_required &= ~IAVF_FLAG_AQ_GET_HENA;
1057 iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_RSS_HENA_CAPS, NULL, 0);
1058}
1059
1060/**
1061 * iavf_set_hena
1062 * @adapter: adapter structure
1063 *
1064 * Request the PF to set our RSS hash capabilities
1065 **/
1066void iavf_set_hena(struct iavf_adapter *adapter)
1067{
1068 struct virtchnl_rss_hena vrh;
1069
1070 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1071 /* bail because we already have a command pending */
1072 dev_err(&adapter->pdev->dev, "Cannot set RSS hash enable, command %d pending\n",
1073 adapter->current_op);
1074 return;
1075 }
1076 vrh.hena = adapter->hena;
1077 adapter->current_op = VIRTCHNL_OP_SET_RSS_HENA;
1078 adapter->aq_required &= ~IAVF_FLAG_AQ_SET_HENA;
1079 iavf_send_pf_msg(adapter, VIRTCHNL_OP_SET_RSS_HENA, (u8 *)&vrh,
1080 sizeof(vrh));
1081}
1082
1083/**
1084 * iavf_set_rss_key
1085 * @adapter: adapter structure
1086 *
1087 * Request the PF to set our RSS hash key
1088 **/
1089void iavf_set_rss_key(struct iavf_adapter *adapter)
1090{
1091 struct virtchnl_rss_key *vrk;
1092 int len;
1093
1094 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1095 /* bail because we already have a command pending */
1096 dev_err(&adapter->pdev->dev, "Cannot set RSS key, command %d pending\n",
1097 adapter->current_op);
1098 return;
1099 }
1100 len = virtchnl_struct_size(vrk, key, adapter->rss_key_size);
1101 vrk = kzalloc(len, GFP_KERNEL);
1102 if (!vrk)
1103 return;
1104 vrk->vsi_id = adapter->vsi.id;
1105 vrk->key_len = adapter->rss_key_size;
1106 memcpy(vrk->key, adapter->rss_key, adapter->rss_key_size);
1107
1108 adapter->current_op = VIRTCHNL_OP_CONFIG_RSS_KEY;
1109 adapter->aq_required &= ~IAVF_FLAG_AQ_SET_RSS_KEY;
1110 iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_RSS_KEY, (u8 *)vrk, len);
1111 kfree(vrk);
1112}
1113
1114/**
1115 * iavf_set_rss_lut
1116 * @adapter: adapter structure
1117 *
1118 * Request the PF to set our RSS lookup table
1119 **/
1120void iavf_set_rss_lut(struct iavf_adapter *adapter)
1121{
1122 struct virtchnl_rss_lut *vrl;
1123 int len;
1124
1125 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1126 /* bail because we already have a command pending */
1127 dev_err(&adapter->pdev->dev, "Cannot set RSS LUT, command %d pending\n",
1128 adapter->current_op);
1129 return;
1130 }
1131 len = virtchnl_struct_size(vrl, lut, adapter->rss_lut_size);
1132 vrl = kzalloc(len, GFP_KERNEL);
1133 if (!vrl)
1134 return;
1135 vrl->vsi_id = adapter->vsi.id;
1136 vrl->lut_entries = adapter->rss_lut_size;
1137 memcpy(vrl->lut, adapter->rss_lut, adapter->rss_lut_size);
1138 adapter->current_op = VIRTCHNL_OP_CONFIG_RSS_LUT;
1139 adapter->aq_required &= ~IAVF_FLAG_AQ_SET_RSS_LUT;
1140 iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_RSS_LUT, (u8 *)vrl, len);
1141 kfree(vrl);
1142}
1143
1144/**
1145 * iavf_set_rss_hfunc
1146 * @adapter: adapter structure
1147 *
1148 * Request the PF to set our RSS Hash function
1149 **/
1150void iavf_set_rss_hfunc(struct iavf_adapter *adapter)
1151{
1152 struct virtchnl_rss_hfunc *vrh;
1153 int len = sizeof(*vrh);
1154
1155 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1156 /* bail because we already have a command pending */
1157 dev_err(&adapter->pdev->dev, "Cannot set RSS Hash function, command %d pending\n",
1158 adapter->current_op);
1159 return;
1160 }
1161 vrh = kzalloc(len, GFP_KERNEL);
1162 if (!vrh)
1163 return;
1164 vrh->vsi_id = adapter->vsi.id;
1165 vrh->rss_algorithm = adapter->hfunc;
1166 adapter->current_op = VIRTCHNL_OP_CONFIG_RSS_HFUNC;
1167 adapter->aq_required &= ~IAVF_FLAG_AQ_SET_RSS_HFUNC;
1168 iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_RSS_HFUNC, (u8 *)vrh, len);
1169 kfree(vrh);
1170}
1171
1172/**
1173 * iavf_enable_vlan_stripping
1174 * @adapter: adapter structure
1175 *
1176 * Request VLAN header stripping to be enabled
1177 **/
1178void iavf_enable_vlan_stripping(struct iavf_adapter *adapter)
1179{
1180 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1181 /* bail because we already have a command pending */
1182 dev_err(&adapter->pdev->dev, "Cannot enable stripping, command %d pending\n",
1183 adapter->current_op);
1184 return;
1185 }
1186 adapter->current_op = VIRTCHNL_OP_ENABLE_VLAN_STRIPPING;
1187 adapter->aq_required &= ~IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING;
1188 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, NULL, 0);
1189}
1190
1191/**
1192 * iavf_disable_vlan_stripping
1193 * @adapter: adapter structure
1194 *
1195 * Request VLAN header stripping to be disabled
1196 **/
1197void iavf_disable_vlan_stripping(struct iavf_adapter *adapter)
1198{
1199 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1200 /* bail because we already have a command pending */
1201 dev_err(&adapter->pdev->dev, "Cannot disable stripping, command %d pending\n",
1202 adapter->current_op);
1203 return;
1204 }
1205 adapter->current_op = VIRTCHNL_OP_DISABLE_VLAN_STRIPPING;
1206 adapter->aq_required &= ~IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING;
1207 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, NULL, 0);
1208}
1209
1210/**
1211 * iavf_tpid_to_vc_ethertype - transform from VLAN TPID to virtchnl ethertype
1212 * @tpid: VLAN TPID (i.e. 0x8100, 0x88a8, etc.)
1213 */
1214static u32 iavf_tpid_to_vc_ethertype(u16 tpid)
1215{
1216 switch (tpid) {
1217 case ETH_P_8021Q:
1218 return VIRTCHNL_VLAN_ETHERTYPE_8100;
1219 case ETH_P_8021AD:
1220 return VIRTCHNL_VLAN_ETHERTYPE_88A8;
1221 }
1222
1223 return 0;
1224}
1225
1226/**
1227 * iavf_set_vc_offload_ethertype - set virtchnl ethertype for offload message
1228 * @adapter: adapter structure
1229 * @msg: message structure used for updating offloads over virtchnl to update
1230 * @tpid: VLAN TPID (i.e. 0x8100, 0x88a8, etc.)
1231 * @offload_op: opcode used to determine which support structure to check
1232 */
1233static int
1234iavf_set_vc_offload_ethertype(struct iavf_adapter *adapter,
1235 struct virtchnl_vlan_setting *msg, u16 tpid,
1236 enum virtchnl_ops offload_op)
1237{
1238 struct virtchnl_vlan_supported_caps *offload_support;
1239 u16 vc_ethertype = iavf_tpid_to_vc_ethertype(tpid);
1240
1241 /* reference the correct offload support structure */
1242 switch (offload_op) {
1243 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2:
1244 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2:
1245 offload_support =
1246 &adapter->vlan_v2_caps.offloads.stripping_support;
1247 break;
1248 case VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2:
1249 case VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2:
1250 offload_support =
1251 &adapter->vlan_v2_caps.offloads.insertion_support;
1252 break;
1253 default:
1254 dev_err(&adapter->pdev->dev, "Invalid opcode %d for setting virtchnl ethertype to enable/disable VLAN offloads\n",
1255 offload_op);
1256 return -EINVAL;
1257 }
1258
1259 /* make sure ethertype is supported */
1260 if (offload_support->outer & vc_ethertype &&
1261 offload_support->outer & VIRTCHNL_VLAN_TOGGLE) {
1262 msg->outer_ethertype_setting = vc_ethertype;
1263 } else if (offload_support->inner & vc_ethertype &&
1264 offload_support->inner & VIRTCHNL_VLAN_TOGGLE) {
1265 msg->inner_ethertype_setting = vc_ethertype;
1266 } else {
1267 dev_dbg(&adapter->pdev->dev, "opcode %d unsupported for VLAN TPID 0x%04x\n",
1268 offload_op, tpid);
1269 return -EINVAL;
1270 }
1271
1272 return 0;
1273}
1274
1275/**
1276 * iavf_clear_offload_v2_aq_required - clear AQ required bit for offload request
1277 * @adapter: adapter structure
1278 * @tpid: VLAN TPID
1279 * @offload_op: opcode used to determine which AQ required bit to clear
1280 */
1281static void
1282iavf_clear_offload_v2_aq_required(struct iavf_adapter *adapter, u16 tpid,
1283 enum virtchnl_ops offload_op)
1284{
1285 switch (offload_op) {
1286 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2:
1287 if (tpid == ETH_P_8021Q)
1288 adapter->aq_required &=
1289 ~IAVF_FLAG_AQ_ENABLE_CTAG_VLAN_STRIPPING;
1290 else if (tpid == ETH_P_8021AD)
1291 adapter->aq_required &=
1292 ~IAVF_FLAG_AQ_ENABLE_STAG_VLAN_STRIPPING;
1293 break;
1294 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2:
1295 if (tpid == ETH_P_8021Q)
1296 adapter->aq_required &=
1297 ~IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_STRIPPING;
1298 else if (tpid == ETH_P_8021AD)
1299 adapter->aq_required &=
1300 ~IAVF_FLAG_AQ_DISABLE_STAG_VLAN_STRIPPING;
1301 break;
1302 case VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2:
1303 if (tpid == ETH_P_8021Q)
1304 adapter->aq_required &=
1305 ~IAVF_FLAG_AQ_ENABLE_CTAG_VLAN_INSERTION;
1306 else if (tpid == ETH_P_8021AD)
1307 adapter->aq_required &=
1308 ~IAVF_FLAG_AQ_ENABLE_STAG_VLAN_INSERTION;
1309 break;
1310 case VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2:
1311 if (tpid == ETH_P_8021Q)
1312 adapter->aq_required &=
1313 ~IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_INSERTION;
1314 else if (tpid == ETH_P_8021AD)
1315 adapter->aq_required &=
1316 ~IAVF_FLAG_AQ_DISABLE_STAG_VLAN_INSERTION;
1317 break;
1318 default:
1319 dev_err(&adapter->pdev->dev, "Unsupported opcode %d specified for clearing aq_required bits for VIRTCHNL_VF_OFFLOAD_VLAN_V2 offload request\n",
1320 offload_op);
1321 }
1322}
1323
1324/**
1325 * iavf_send_vlan_offload_v2 - send offload enable/disable over virtchnl
1326 * @adapter: adapter structure
1327 * @tpid: VLAN TPID used for the command (i.e. 0x8100 or 0x88a8)
1328 * @offload_op: offload_op used to make the request over virtchnl
1329 */
1330static void
1331iavf_send_vlan_offload_v2(struct iavf_adapter *adapter, u16 tpid,
1332 enum virtchnl_ops offload_op)
1333{
1334 struct virtchnl_vlan_setting *msg;
1335 int len = sizeof(*msg);
1336
1337 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1338 /* bail because we already have a command pending */
1339 dev_err(&adapter->pdev->dev, "Cannot send %d, command %d pending\n",
1340 offload_op, adapter->current_op);
1341 return;
1342 }
1343
1344 adapter->current_op = offload_op;
1345
1346 msg = kzalloc(len, GFP_KERNEL);
1347 if (!msg)
1348 return;
1349
1350 msg->vport_id = adapter->vsi_res->vsi_id;
1351
1352 /* always clear to prevent unsupported and endless requests */
1353 iavf_clear_offload_v2_aq_required(adapter, tpid, offload_op);
1354
1355 /* only send valid offload requests */
1356 if (!iavf_set_vc_offload_ethertype(adapter, msg, tpid, offload_op))
1357 iavf_send_pf_msg(adapter, offload_op, (u8 *)msg, len);
1358 else
1359 adapter->current_op = VIRTCHNL_OP_UNKNOWN;
1360
1361 kfree(msg);
1362}
1363
1364/**
1365 * iavf_enable_vlan_stripping_v2 - enable VLAN stripping
1366 * @adapter: adapter structure
1367 * @tpid: VLAN TPID used to enable VLAN stripping
1368 */
1369void iavf_enable_vlan_stripping_v2(struct iavf_adapter *adapter, u16 tpid)
1370{
1371 iavf_send_vlan_offload_v2(adapter, tpid,
1372 VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2);
1373}
1374
1375/**
1376 * iavf_disable_vlan_stripping_v2 - disable VLAN stripping
1377 * @adapter: adapter structure
1378 * @tpid: VLAN TPID used to disable VLAN stripping
1379 */
1380void iavf_disable_vlan_stripping_v2(struct iavf_adapter *adapter, u16 tpid)
1381{
1382 iavf_send_vlan_offload_v2(adapter, tpid,
1383 VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2);
1384}
1385
1386/**
1387 * iavf_enable_vlan_insertion_v2 - enable VLAN insertion
1388 * @adapter: adapter structure
1389 * @tpid: VLAN TPID used to enable VLAN insertion
1390 */
1391void iavf_enable_vlan_insertion_v2(struct iavf_adapter *adapter, u16 tpid)
1392{
1393 iavf_send_vlan_offload_v2(adapter, tpid,
1394 VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2);
1395}
1396
1397/**
1398 * iavf_disable_vlan_insertion_v2 - disable VLAN insertion
1399 * @adapter: adapter structure
1400 * @tpid: VLAN TPID used to disable VLAN insertion
1401 */
1402void iavf_disable_vlan_insertion_v2(struct iavf_adapter *adapter, u16 tpid)
1403{
1404 iavf_send_vlan_offload_v2(adapter, tpid,
1405 VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2);
1406}
1407
1408/**
1409 * iavf_print_link_message - print link up or down
1410 * @adapter: adapter structure
1411 *
1412 * Log a message telling the world of our wonderous link status
1413 */
1414static void iavf_print_link_message(struct iavf_adapter *adapter)
1415{
1416 struct net_device *netdev = adapter->netdev;
1417 int link_speed_mbps;
1418 char *speed;
1419
1420 if (!adapter->link_up) {
1421 netdev_info(netdev, "NIC Link is Down\n");
1422 return;
1423 }
1424
1425 if (ADV_LINK_SUPPORT(adapter)) {
1426 link_speed_mbps = adapter->link_speed_mbps;
1427 goto print_link_msg;
1428 }
1429
1430 switch (adapter->link_speed) {
1431 case VIRTCHNL_LINK_SPEED_40GB:
1432 link_speed_mbps = SPEED_40000;
1433 break;
1434 case VIRTCHNL_LINK_SPEED_25GB:
1435 link_speed_mbps = SPEED_25000;
1436 break;
1437 case VIRTCHNL_LINK_SPEED_20GB:
1438 link_speed_mbps = SPEED_20000;
1439 break;
1440 case VIRTCHNL_LINK_SPEED_10GB:
1441 link_speed_mbps = SPEED_10000;
1442 break;
1443 case VIRTCHNL_LINK_SPEED_5GB:
1444 link_speed_mbps = SPEED_5000;
1445 break;
1446 case VIRTCHNL_LINK_SPEED_2_5GB:
1447 link_speed_mbps = SPEED_2500;
1448 break;
1449 case VIRTCHNL_LINK_SPEED_1GB:
1450 link_speed_mbps = SPEED_1000;
1451 break;
1452 case VIRTCHNL_LINK_SPEED_100MB:
1453 link_speed_mbps = SPEED_100;
1454 break;
1455 default:
1456 link_speed_mbps = SPEED_UNKNOWN;
1457 break;
1458 }
1459
1460print_link_msg:
1461 if (link_speed_mbps > SPEED_1000) {
1462 if (link_speed_mbps == SPEED_2500) {
1463 speed = kasprintf(GFP_KERNEL, "%s", "2.5 Gbps");
1464 } else {
1465 /* convert to Gbps inline */
1466 speed = kasprintf(GFP_KERNEL, "%d Gbps",
1467 link_speed_mbps / 1000);
1468 }
1469 } else if (link_speed_mbps == SPEED_UNKNOWN) {
1470 speed = kasprintf(GFP_KERNEL, "%s", "Unknown Mbps");
1471 } else {
1472 speed = kasprintf(GFP_KERNEL, "%d Mbps", link_speed_mbps);
1473 }
1474
1475 netdev_info(netdev, "NIC Link is Up Speed is %s Full Duplex\n", speed);
1476 kfree(speed);
1477}
1478
1479/**
1480 * iavf_get_vpe_link_status
1481 * @adapter: adapter structure
1482 * @vpe: virtchnl_pf_event structure
1483 *
1484 * Helper function for determining the link status
1485 **/
1486static bool
1487iavf_get_vpe_link_status(struct iavf_adapter *adapter,
1488 struct virtchnl_pf_event *vpe)
1489{
1490 if (ADV_LINK_SUPPORT(adapter))
1491 return vpe->event_data.link_event_adv.link_status;
1492 else
1493 return vpe->event_data.link_event.link_status;
1494}
1495
1496/**
1497 * iavf_set_adapter_link_speed_from_vpe
1498 * @adapter: adapter structure for which we are setting the link speed
1499 * @vpe: virtchnl_pf_event structure that contains the link speed we are setting
1500 *
1501 * Helper function for setting iavf_adapter link speed
1502 **/
1503static void
1504iavf_set_adapter_link_speed_from_vpe(struct iavf_adapter *adapter,
1505 struct virtchnl_pf_event *vpe)
1506{
1507 if (ADV_LINK_SUPPORT(adapter))
1508 adapter->link_speed_mbps =
1509 vpe->event_data.link_event_adv.link_speed;
1510 else
1511 adapter->link_speed = vpe->event_data.link_event.link_speed;
1512}
1513
1514/**
1515 * iavf_enable_channels
1516 * @adapter: adapter structure
1517 *
1518 * Request that the PF enable channels as specified by
1519 * the user via tc tool.
1520 **/
1521void iavf_enable_channels(struct iavf_adapter *adapter)
1522{
1523 struct virtchnl_tc_info *vti = NULL;
1524 size_t len;
1525 int i;
1526
1527 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1528 /* bail because we already have a command pending */
1529 dev_err(&adapter->pdev->dev, "Cannot configure mqprio, command %d pending\n",
1530 adapter->current_op);
1531 return;
1532 }
1533
1534 len = virtchnl_struct_size(vti, list, adapter->num_tc);
1535 vti = kzalloc(len, GFP_KERNEL);
1536 if (!vti)
1537 return;
1538 vti->num_tc = adapter->num_tc;
1539 for (i = 0; i < vti->num_tc; i++) {
1540 vti->list[i].count = adapter->ch_config.ch_info[i].count;
1541 vti->list[i].offset = adapter->ch_config.ch_info[i].offset;
1542 vti->list[i].pad = 0;
1543 vti->list[i].max_tx_rate =
1544 adapter->ch_config.ch_info[i].max_tx_rate;
1545 }
1546
1547 adapter->ch_config.state = __IAVF_TC_RUNNING;
1548 adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED;
1549 adapter->current_op = VIRTCHNL_OP_ENABLE_CHANNELS;
1550 adapter->aq_required &= ~IAVF_FLAG_AQ_ENABLE_CHANNELS;
1551 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ENABLE_CHANNELS, (u8 *)vti, len);
1552 kfree(vti);
1553}
1554
1555/**
1556 * iavf_disable_channels
1557 * @adapter: adapter structure
1558 *
1559 * Request that the PF disable channels that are configured
1560 **/
1561void iavf_disable_channels(struct iavf_adapter *adapter)
1562{
1563 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1564 /* bail because we already have a command pending */
1565 dev_err(&adapter->pdev->dev, "Cannot configure mqprio, command %d pending\n",
1566 adapter->current_op);
1567 return;
1568 }
1569
1570 adapter->ch_config.state = __IAVF_TC_INVALID;
1571 adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED;
1572 adapter->current_op = VIRTCHNL_OP_DISABLE_CHANNELS;
1573 adapter->aq_required &= ~IAVF_FLAG_AQ_DISABLE_CHANNELS;
1574 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DISABLE_CHANNELS, NULL, 0);
1575}
1576
1577/**
1578 * iavf_print_cloud_filter
1579 * @adapter: adapter structure
1580 * @f: cloud filter to print
1581 *
1582 * Print the cloud filter
1583 **/
1584static void iavf_print_cloud_filter(struct iavf_adapter *adapter,
1585 struct virtchnl_filter *f)
1586{
1587 switch (f->flow_type) {
1588 case VIRTCHNL_TCP_V4_FLOW:
1589 dev_info(&adapter->pdev->dev, "dst_mac: %pM src_mac: %pM vlan_id: %hu dst_ip: %pI4 src_ip %pI4 dst_port %hu src_port %hu\n",
1590 &f->data.tcp_spec.dst_mac,
1591 &f->data.tcp_spec.src_mac,
1592 ntohs(f->data.tcp_spec.vlan_id),
1593 &f->data.tcp_spec.dst_ip[0],
1594 &f->data.tcp_spec.src_ip[0],
1595 ntohs(f->data.tcp_spec.dst_port),
1596 ntohs(f->data.tcp_spec.src_port));
1597 break;
1598 case VIRTCHNL_TCP_V6_FLOW:
1599 dev_info(&adapter->pdev->dev, "dst_mac: %pM src_mac: %pM vlan_id: %hu dst_ip: %pI6 src_ip %pI6 dst_port %hu src_port %hu\n",
1600 &f->data.tcp_spec.dst_mac,
1601 &f->data.tcp_spec.src_mac,
1602 ntohs(f->data.tcp_spec.vlan_id),
1603 &f->data.tcp_spec.dst_ip,
1604 &f->data.tcp_spec.src_ip,
1605 ntohs(f->data.tcp_spec.dst_port),
1606 ntohs(f->data.tcp_spec.src_port));
1607 break;
1608 }
1609}
1610
1611/**
1612 * iavf_add_cloud_filter
1613 * @adapter: adapter structure
1614 *
1615 * Request that the PF add cloud filters as specified
1616 * by the user via tc tool.
1617 **/
1618void iavf_add_cloud_filter(struct iavf_adapter *adapter)
1619{
1620 struct iavf_cloud_filter *cf;
1621 struct virtchnl_filter *f;
1622 int len = 0, count = 0;
1623
1624 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1625 /* bail because we already have a command pending */
1626 dev_err(&adapter->pdev->dev, "Cannot add cloud filter, command %d pending\n",
1627 adapter->current_op);
1628 return;
1629 }
1630 list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
1631 if (cf->add) {
1632 count++;
1633 break;
1634 }
1635 }
1636 if (!count) {
1637 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_CLOUD_FILTER;
1638 return;
1639 }
1640 adapter->current_op = VIRTCHNL_OP_ADD_CLOUD_FILTER;
1641
1642 len = sizeof(struct virtchnl_filter);
1643 f = kzalloc(len, GFP_KERNEL);
1644 if (!f)
1645 return;
1646
1647 list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
1648 if (cf->add) {
1649 memcpy(f, &cf->f, sizeof(struct virtchnl_filter));
1650 cf->add = false;
1651 cf->state = __IAVF_CF_ADD_PENDING;
1652 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_CLOUD_FILTER,
1653 (u8 *)f, len);
1654 }
1655 }
1656 kfree(f);
1657}
1658
1659/**
1660 * iavf_del_cloud_filter
1661 * @adapter: adapter structure
1662 *
1663 * Request that the PF delete cloud filters as specified
1664 * by the user via tc tool.
1665 **/
1666void iavf_del_cloud_filter(struct iavf_adapter *adapter)
1667{
1668 struct iavf_cloud_filter *cf, *cftmp;
1669 struct virtchnl_filter *f;
1670 int len = 0, count = 0;
1671
1672 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1673 /* bail because we already have a command pending */
1674 dev_err(&adapter->pdev->dev, "Cannot remove cloud filter, command %d pending\n",
1675 adapter->current_op);
1676 return;
1677 }
1678 list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
1679 if (cf->del) {
1680 count++;
1681 break;
1682 }
1683 }
1684 if (!count) {
1685 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_CLOUD_FILTER;
1686 return;
1687 }
1688 adapter->current_op = VIRTCHNL_OP_DEL_CLOUD_FILTER;
1689
1690 len = sizeof(struct virtchnl_filter);
1691 f = kzalloc(len, GFP_KERNEL);
1692 if (!f)
1693 return;
1694
1695 list_for_each_entry_safe(cf, cftmp, &adapter->cloud_filter_list, list) {
1696 if (cf->del) {
1697 memcpy(f, &cf->f, sizeof(struct virtchnl_filter));
1698 cf->del = false;
1699 cf->state = __IAVF_CF_DEL_PENDING;
1700 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_CLOUD_FILTER,
1701 (u8 *)f, len);
1702 }
1703 }
1704 kfree(f);
1705}
1706
1707/**
1708 * iavf_add_fdir_filter
1709 * @adapter: the VF adapter structure
1710 *
1711 * Request that the PF add Flow Director filters as specified
1712 * by the user via ethtool.
1713 **/
1714void iavf_add_fdir_filter(struct iavf_adapter *adapter)
1715{
1716 struct iavf_fdir_fltr *fdir;
1717 struct virtchnl_fdir_add *f;
1718 bool process_fltr = false;
1719 int len;
1720
1721 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1722 /* bail because we already have a command pending */
1723 dev_err(&adapter->pdev->dev, "Cannot add Flow Director filter, command %d pending\n",
1724 adapter->current_op);
1725 return;
1726 }
1727
1728 len = sizeof(struct virtchnl_fdir_add);
1729 f = kzalloc(len, GFP_KERNEL);
1730 if (!f)
1731 return;
1732
1733 spin_lock_bh(&adapter->fdir_fltr_lock);
1734 list_for_each_entry(fdir, &adapter->fdir_list_head, list) {
1735 if (fdir->state == IAVF_FDIR_FLTR_ADD_REQUEST) {
1736 process_fltr = true;
1737 fdir->state = IAVF_FDIR_FLTR_ADD_PENDING;
1738 memcpy(f, &fdir->vc_add_msg, len);
1739 break;
1740 }
1741 }
1742 spin_unlock_bh(&adapter->fdir_fltr_lock);
1743
1744 if (!process_fltr) {
1745 /* prevent iavf_add_fdir_filter() from being called when there
1746 * are no filters to add
1747 */
1748 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_FDIR_FILTER;
1749 kfree(f);
1750 return;
1751 }
1752 adapter->current_op = VIRTCHNL_OP_ADD_FDIR_FILTER;
1753 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_FDIR_FILTER, (u8 *)f, len);
1754 kfree(f);
1755}
1756
1757/**
1758 * iavf_del_fdir_filter
1759 * @adapter: the VF adapter structure
1760 *
1761 * Request that the PF delete Flow Director filters as specified
1762 * by the user via ethtool.
1763 **/
1764void iavf_del_fdir_filter(struct iavf_adapter *adapter)
1765{
1766 struct virtchnl_fdir_del f = {};
1767 struct iavf_fdir_fltr *fdir;
1768 bool process_fltr = false;
1769 int len;
1770
1771 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1772 /* bail because we already have a command pending */
1773 dev_err(&adapter->pdev->dev, "Cannot remove Flow Director filter, command %d pending\n",
1774 adapter->current_op);
1775 return;
1776 }
1777
1778 len = sizeof(struct virtchnl_fdir_del);
1779
1780 spin_lock_bh(&adapter->fdir_fltr_lock);
1781 list_for_each_entry(fdir, &adapter->fdir_list_head, list) {
1782 if (fdir->state == IAVF_FDIR_FLTR_DEL_REQUEST) {
1783 process_fltr = true;
1784 f.vsi_id = fdir->vc_add_msg.vsi_id;
1785 f.flow_id = fdir->flow_id;
1786 fdir->state = IAVF_FDIR_FLTR_DEL_PENDING;
1787 break;
1788 } else if (fdir->state == IAVF_FDIR_FLTR_DIS_REQUEST) {
1789 process_fltr = true;
1790 f.vsi_id = fdir->vc_add_msg.vsi_id;
1791 f.flow_id = fdir->flow_id;
1792 fdir->state = IAVF_FDIR_FLTR_DIS_PENDING;
1793 break;
1794 }
1795 }
1796 spin_unlock_bh(&adapter->fdir_fltr_lock);
1797
1798 if (!process_fltr) {
1799 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_FDIR_FILTER;
1800 return;
1801 }
1802
1803 adapter->current_op = VIRTCHNL_OP_DEL_FDIR_FILTER;
1804 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_FDIR_FILTER, (u8 *)&f, len);
1805}
1806
1807/**
1808 * iavf_add_adv_rss_cfg
1809 * @adapter: the VF adapter structure
1810 *
1811 * Request that the PF add RSS configuration as specified
1812 * by the user via ethtool.
1813 **/
1814void iavf_add_adv_rss_cfg(struct iavf_adapter *adapter)
1815{
1816 struct virtchnl_rss_cfg *rss_cfg;
1817 struct iavf_adv_rss *rss;
1818 bool process_rss = false;
1819 int len;
1820
1821 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1822 /* bail because we already have a command pending */
1823 dev_err(&adapter->pdev->dev, "Cannot add RSS configuration, command %d pending\n",
1824 adapter->current_op);
1825 return;
1826 }
1827
1828 len = sizeof(struct virtchnl_rss_cfg);
1829 rss_cfg = kzalloc(len, GFP_KERNEL);
1830 if (!rss_cfg)
1831 return;
1832
1833 spin_lock_bh(&adapter->adv_rss_lock);
1834 list_for_each_entry(rss, &adapter->adv_rss_list_head, list) {
1835 if (rss->state == IAVF_ADV_RSS_ADD_REQUEST) {
1836 process_rss = true;
1837 rss->state = IAVF_ADV_RSS_ADD_PENDING;
1838 memcpy(rss_cfg, &rss->cfg_msg, len);
1839 iavf_print_adv_rss_cfg(adapter, rss,
1840 "Input set change for",
1841 "is pending");
1842 break;
1843 }
1844 }
1845 spin_unlock_bh(&adapter->adv_rss_lock);
1846
1847 if (process_rss) {
1848 adapter->current_op = VIRTCHNL_OP_ADD_RSS_CFG;
1849 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_RSS_CFG,
1850 (u8 *)rss_cfg, len);
1851 } else {
1852 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_ADV_RSS_CFG;
1853 }
1854
1855 kfree(rss_cfg);
1856}
1857
1858/**
1859 * iavf_del_adv_rss_cfg
1860 * @adapter: the VF adapter structure
1861 *
1862 * Request that the PF delete RSS configuration as specified
1863 * by the user via ethtool.
1864 **/
1865void iavf_del_adv_rss_cfg(struct iavf_adapter *adapter)
1866{
1867 struct virtchnl_rss_cfg *rss_cfg;
1868 struct iavf_adv_rss *rss;
1869 bool process_rss = false;
1870 int len;
1871
1872 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1873 /* bail because we already have a command pending */
1874 dev_err(&adapter->pdev->dev, "Cannot remove RSS configuration, command %d pending\n",
1875 adapter->current_op);
1876 return;
1877 }
1878
1879 len = sizeof(struct virtchnl_rss_cfg);
1880 rss_cfg = kzalloc(len, GFP_KERNEL);
1881 if (!rss_cfg)
1882 return;
1883
1884 spin_lock_bh(&adapter->adv_rss_lock);
1885 list_for_each_entry(rss, &adapter->adv_rss_list_head, list) {
1886 if (rss->state == IAVF_ADV_RSS_DEL_REQUEST) {
1887 process_rss = true;
1888 rss->state = IAVF_ADV_RSS_DEL_PENDING;
1889 memcpy(rss_cfg, &rss->cfg_msg, len);
1890 break;
1891 }
1892 }
1893 spin_unlock_bh(&adapter->adv_rss_lock);
1894
1895 if (process_rss) {
1896 adapter->current_op = VIRTCHNL_OP_DEL_RSS_CFG;
1897 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_RSS_CFG,
1898 (u8 *)rss_cfg, len);
1899 } else {
1900 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_ADV_RSS_CFG;
1901 }
1902
1903 kfree(rss_cfg);
1904}
1905
1906/**
1907 * iavf_request_reset
1908 * @adapter: adapter structure
1909 *
1910 * Request that the PF reset this VF. No response is expected.
1911 **/
1912int iavf_request_reset(struct iavf_adapter *adapter)
1913{
1914 int err;
1915 /* Don't check CURRENT_OP - this is always higher priority */
1916 err = iavf_send_pf_msg(adapter, VIRTCHNL_OP_RESET_VF, NULL, 0);
1917 adapter->current_op = VIRTCHNL_OP_UNKNOWN;
1918 return err;
1919}
1920
1921/**
1922 * iavf_netdev_features_vlan_strip_set - update vlan strip status
1923 * @netdev: ptr to netdev being adjusted
1924 * @enable: enable or disable vlan strip
1925 *
1926 * Helper function to change vlan strip status in netdev->features.
1927 */
1928static void iavf_netdev_features_vlan_strip_set(struct net_device *netdev,
1929 const bool enable)
1930{
1931 if (enable)
1932 netdev->features |= NETIF_F_HW_VLAN_CTAG_RX;
1933 else
1934 netdev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
1935}
1936
1937/**
1938 * iavf_activate_fdir_filters - Reactivate all FDIR filters after a reset
1939 * @adapter: private adapter structure
1940 *
1941 * Called after a reset to re-add all FDIR filters and delete some of them
1942 * if they were pending to be deleted.
1943 */
1944static void iavf_activate_fdir_filters(struct iavf_adapter *adapter)
1945{
1946 struct iavf_fdir_fltr *f, *ftmp;
1947 bool add_filters = false;
1948
1949 spin_lock_bh(&adapter->fdir_fltr_lock);
1950 list_for_each_entry_safe(f, ftmp, &adapter->fdir_list_head, list) {
1951 if (f->state == IAVF_FDIR_FLTR_ADD_REQUEST ||
1952 f->state == IAVF_FDIR_FLTR_ADD_PENDING ||
1953 f->state == IAVF_FDIR_FLTR_ACTIVE) {
1954 /* All filters and requests have been removed in PF,
1955 * restore them
1956 */
1957 f->state = IAVF_FDIR_FLTR_ADD_REQUEST;
1958 add_filters = true;
1959 } else if (f->state == IAVF_FDIR_FLTR_DIS_REQUEST ||
1960 f->state == IAVF_FDIR_FLTR_DIS_PENDING) {
1961 /* Link down state, leave filters as inactive */
1962 f->state = IAVF_FDIR_FLTR_INACTIVE;
1963 } else if (f->state == IAVF_FDIR_FLTR_DEL_REQUEST ||
1964 f->state == IAVF_FDIR_FLTR_DEL_PENDING) {
1965 /* Delete filters that were pending to be deleted, the
1966 * list on PF is already cleared after a reset
1967 */
1968 list_del(&f->list);
1969 kfree(f);
1970 adapter->fdir_active_fltr--;
1971 }
1972 }
1973 spin_unlock_bh(&adapter->fdir_fltr_lock);
1974
1975 if (add_filters)
1976 adapter->aq_required |= IAVF_FLAG_AQ_ADD_FDIR_FILTER;
1977}
1978
1979/**
1980 * iavf_virtchnl_completion
1981 * @adapter: adapter structure
1982 * @v_opcode: opcode sent by PF
1983 * @v_retval: retval sent by PF
1984 * @msg: message sent by PF
1985 * @msglen: message length
1986 *
1987 * Asynchronous completion function for admin queue messages. Rather than busy
1988 * wait, we fire off our requests and assume that no errors will be returned.
1989 * This function handles the reply messages.
1990 **/
1991void iavf_virtchnl_completion(struct iavf_adapter *adapter,
1992 enum virtchnl_ops v_opcode,
1993 enum iavf_status v_retval, u8 *msg, u16 msglen)
1994{
1995 struct net_device *netdev = adapter->netdev;
1996
1997 if (v_opcode == VIRTCHNL_OP_EVENT) {
1998 struct virtchnl_pf_event *vpe =
1999 (struct virtchnl_pf_event *)msg;
2000 bool link_up = iavf_get_vpe_link_status(adapter, vpe);
2001
2002 switch (vpe->event) {
2003 case VIRTCHNL_EVENT_LINK_CHANGE:
2004 iavf_set_adapter_link_speed_from_vpe(adapter, vpe);
2005
2006 /* we've already got the right link status, bail */
2007 if (adapter->link_up == link_up)
2008 break;
2009
2010 if (link_up) {
2011 /* If we get link up message and start queues
2012 * before our queues are configured it will
2013 * trigger a TX hang. In that case, just ignore
2014 * the link status message,we'll get another one
2015 * after we enable queues and actually prepared
2016 * to send traffic.
2017 */
2018 if (adapter->state != __IAVF_RUNNING)
2019 break;
2020
2021 /* For ADq enabled VF, we reconfigure VSIs and
2022 * re-allocate queues. Hence wait till all
2023 * queues are enabled.
2024 */
2025 if (adapter->flags &
2026 IAVF_FLAG_QUEUES_DISABLED)
2027 break;
2028 }
2029
2030 adapter->link_up = link_up;
2031 if (link_up) {
2032 netif_tx_start_all_queues(netdev);
2033 netif_carrier_on(netdev);
2034 } else {
2035 netif_tx_stop_all_queues(netdev);
2036 netif_carrier_off(netdev);
2037 }
2038 iavf_print_link_message(adapter);
2039 break;
2040 case VIRTCHNL_EVENT_RESET_IMPENDING:
2041 dev_info(&adapter->pdev->dev, "Reset indication received from the PF\n");
2042 if (!(adapter->flags & IAVF_FLAG_RESET_PENDING)) {
2043 dev_info(&adapter->pdev->dev, "Scheduling reset task\n");
2044 iavf_schedule_reset(adapter, IAVF_FLAG_RESET_PENDING);
2045 }
2046 break;
2047 default:
2048 dev_err(&adapter->pdev->dev, "Unknown event %d from PF\n",
2049 vpe->event);
2050 break;
2051 }
2052 return;
2053 }
2054 if (v_retval) {
2055 switch (v_opcode) {
2056 case VIRTCHNL_OP_ADD_VLAN:
2057 dev_err(&adapter->pdev->dev, "Failed to add VLAN filter, error %s\n",
2058 iavf_stat_str(&adapter->hw, v_retval));
2059 break;
2060 case VIRTCHNL_OP_ADD_ETH_ADDR:
2061 dev_err(&adapter->pdev->dev, "Failed to add MAC filter, error %s\n",
2062 iavf_stat_str(&adapter->hw, v_retval));
2063 iavf_mac_add_reject(adapter);
2064 /* restore administratively set MAC address */
2065 ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr);
2066 wake_up(&adapter->vc_waitqueue);
2067 break;
2068 case VIRTCHNL_OP_DEL_VLAN:
2069 dev_err(&adapter->pdev->dev, "Failed to delete VLAN filter, error %s\n",
2070 iavf_stat_str(&adapter->hw, v_retval));
2071 break;
2072 case VIRTCHNL_OP_DEL_ETH_ADDR:
2073 dev_err(&adapter->pdev->dev, "Failed to delete MAC filter, error %s\n",
2074 iavf_stat_str(&adapter->hw, v_retval));
2075 break;
2076 case VIRTCHNL_OP_ENABLE_CHANNELS:
2077 dev_err(&adapter->pdev->dev, "Failed to configure queue channels, error %s\n",
2078 iavf_stat_str(&adapter->hw, v_retval));
2079 adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
2080 adapter->ch_config.state = __IAVF_TC_INVALID;
2081 netdev_reset_tc(netdev);
2082 netif_tx_start_all_queues(netdev);
2083 break;
2084 case VIRTCHNL_OP_DISABLE_CHANNELS:
2085 dev_err(&adapter->pdev->dev, "Failed to disable queue channels, error %s\n",
2086 iavf_stat_str(&adapter->hw, v_retval));
2087 adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
2088 adapter->ch_config.state = __IAVF_TC_RUNNING;
2089 netif_tx_start_all_queues(netdev);
2090 break;
2091 case VIRTCHNL_OP_ADD_CLOUD_FILTER: {
2092 struct iavf_cloud_filter *cf, *cftmp;
2093
2094 list_for_each_entry_safe(cf, cftmp,
2095 &adapter->cloud_filter_list,
2096 list) {
2097 if (cf->state == __IAVF_CF_ADD_PENDING) {
2098 cf->state = __IAVF_CF_INVALID;
2099 dev_info(&adapter->pdev->dev, "Failed to add cloud filter, error %s\n",
2100 iavf_stat_str(&adapter->hw,
2101 v_retval));
2102 iavf_print_cloud_filter(adapter,
2103 &cf->f);
2104 list_del(&cf->list);
2105 kfree(cf);
2106 adapter->num_cloud_filters--;
2107 }
2108 }
2109 }
2110 break;
2111 case VIRTCHNL_OP_DEL_CLOUD_FILTER: {
2112 struct iavf_cloud_filter *cf;
2113
2114 list_for_each_entry(cf, &adapter->cloud_filter_list,
2115 list) {
2116 if (cf->state == __IAVF_CF_DEL_PENDING) {
2117 cf->state = __IAVF_CF_ACTIVE;
2118 dev_info(&adapter->pdev->dev, "Failed to del cloud filter, error %s\n",
2119 iavf_stat_str(&adapter->hw,
2120 v_retval));
2121 iavf_print_cloud_filter(adapter,
2122 &cf->f);
2123 }
2124 }
2125 }
2126 break;
2127 case VIRTCHNL_OP_ADD_FDIR_FILTER: {
2128 struct iavf_fdir_fltr *fdir, *fdir_tmp;
2129
2130 spin_lock_bh(&adapter->fdir_fltr_lock);
2131 list_for_each_entry_safe(fdir, fdir_tmp,
2132 &adapter->fdir_list_head,
2133 list) {
2134 if (fdir->state == IAVF_FDIR_FLTR_ADD_PENDING) {
2135 dev_info(&adapter->pdev->dev, "Failed to add Flow Director filter, error %s\n",
2136 iavf_stat_str(&adapter->hw,
2137 v_retval));
2138 iavf_print_fdir_fltr(adapter, fdir);
2139 if (msglen)
2140 dev_err(&adapter->pdev->dev,
2141 "%s\n", msg);
2142 list_del(&fdir->list);
2143 kfree(fdir);
2144 adapter->fdir_active_fltr--;
2145 }
2146 }
2147 spin_unlock_bh(&adapter->fdir_fltr_lock);
2148 }
2149 break;
2150 case VIRTCHNL_OP_DEL_FDIR_FILTER: {
2151 struct iavf_fdir_fltr *fdir;
2152
2153 spin_lock_bh(&adapter->fdir_fltr_lock);
2154 list_for_each_entry(fdir, &adapter->fdir_list_head,
2155 list) {
2156 if (fdir->state == IAVF_FDIR_FLTR_DEL_PENDING ||
2157 fdir->state == IAVF_FDIR_FLTR_DIS_PENDING) {
2158 fdir->state = IAVF_FDIR_FLTR_ACTIVE;
2159 dev_info(&adapter->pdev->dev, "Failed to del Flow Director filter, error %s\n",
2160 iavf_stat_str(&adapter->hw,
2161 v_retval));
2162 iavf_print_fdir_fltr(adapter, fdir);
2163 }
2164 }
2165 spin_unlock_bh(&adapter->fdir_fltr_lock);
2166 }
2167 break;
2168 case VIRTCHNL_OP_ADD_RSS_CFG: {
2169 struct iavf_adv_rss *rss, *rss_tmp;
2170
2171 spin_lock_bh(&adapter->adv_rss_lock);
2172 list_for_each_entry_safe(rss, rss_tmp,
2173 &adapter->adv_rss_list_head,
2174 list) {
2175 if (rss->state == IAVF_ADV_RSS_ADD_PENDING) {
2176 iavf_print_adv_rss_cfg(adapter, rss,
2177 "Failed to change the input set for",
2178 NULL);
2179 list_del(&rss->list);
2180 kfree(rss);
2181 }
2182 }
2183 spin_unlock_bh(&adapter->adv_rss_lock);
2184 }
2185 break;
2186 case VIRTCHNL_OP_DEL_RSS_CFG: {
2187 struct iavf_adv_rss *rss;
2188
2189 spin_lock_bh(&adapter->adv_rss_lock);
2190 list_for_each_entry(rss, &adapter->adv_rss_list_head,
2191 list) {
2192 if (rss->state == IAVF_ADV_RSS_DEL_PENDING) {
2193 rss->state = IAVF_ADV_RSS_ACTIVE;
2194 dev_err(&adapter->pdev->dev, "Failed to delete RSS configuration, error %s\n",
2195 iavf_stat_str(&adapter->hw,
2196 v_retval));
2197 }
2198 }
2199 spin_unlock_bh(&adapter->adv_rss_lock);
2200 }
2201 break;
2202 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
2203 dev_warn(&adapter->pdev->dev, "Changing VLAN Stripping is not allowed when Port VLAN is configured\n");
2204 /* Vlan stripping could not be enabled by ethtool.
2205 * Disable it in netdev->features.
2206 */
2207 iavf_netdev_features_vlan_strip_set(netdev, false);
2208 break;
2209 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
2210 dev_warn(&adapter->pdev->dev, "Changing VLAN Stripping is not allowed when Port VLAN is configured\n");
2211 /* Vlan stripping could not be disabled by ethtool.
2212 * Enable it in netdev->features.
2213 */
2214 iavf_netdev_features_vlan_strip_set(netdev, true);
2215 break;
2216 case VIRTCHNL_OP_ADD_VLAN_V2:
2217 iavf_vlan_add_reject(adapter);
2218 dev_warn(&adapter->pdev->dev, "Failed to add VLAN filter, error %s\n",
2219 iavf_stat_str(&adapter->hw, v_retval));
2220 break;
2221 case VIRTCHNL_OP_CONFIG_RSS_HFUNC:
2222 dev_warn(&adapter->pdev->dev, "Failed to configure hash function, error %s\n",
2223 iavf_stat_str(&adapter->hw, v_retval));
2224
2225 if (adapter->hfunc ==
2226 VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC)
2227 adapter->hfunc =
2228 VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC;
2229 else
2230 adapter->hfunc =
2231 VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC;
2232
2233 break;
2234 default:
2235 dev_err(&adapter->pdev->dev, "PF returned error %d (%s) to our request %d\n",
2236 v_retval, iavf_stat_str(&adapter->hw, v_retval),
2237 v_opcode);
2238 }
2239 }
2240 switch (v_opcode) {
2241 case VIRTCHNL_OP_ADD_ETH_ADDR:
2242 if (!v_retval)
2243 iavf_mac_add_ok(adapter);
2244 if (!ether_addr_equal(netdev->dev_addr, adapter->hw.mac.addr))
2245 if (!ether_addr_equal(netdev->dev_addr,
2246 adapter->hw.mac.addr)) {
2247 netif_addr_lock_bh(netdev);
2248 eth_hw_addr_set(netdev, adapter->hw.mac.addr);
2249 netif_addr_unlock_bh(netdev);
2250 }
2251 wake_up(&adapter->vc_waitqueue);
2252 break;
2253 case VIRTCHNL_OP_GET_STATS: {
2254 struct iavf_eth_stats *stats =
2255 (struct iavf_eth_stats *)msg;
2256 netdev->stats.rx_packets = stats->rx_unicast +
2257 stats->rx_multicast +
2258 stats->rx_broadcast;
2259 netdev->stats.tx_packets = stats->tx_unicast +
2260 stats->tx_multicast +
2261 stats->tx_broadcast;
2262 netdev->stats.rx_bytes = stats->rx_bytes;
2263 netdev->stats.tx_bytes = stats->tx_bytes;
2264 netdev->stats.tx_errors = stats->tx_errors;
2265 netdev->stats.rx_dropped = stats->rx_discards;
2266 netdev->stats.tx_dropped = stats->tx_discards;
2267 adapter->current_stats = *stats;
2268 }
2269 break;
2270 case VIRTCHNL_OP_GET_VF_RESOURCES: {
2271 u16 len = IAVF_VIRTCHNL_VF_RESOURCE_SIZE;
2272
2273 memcpy(adapter->vf_res, msg, min(msglen, len));
2274 iavf_validate_num_queues(adapter);
2275 iavf_vf_parse_hw_config(&adapter->hw, adapter->vf_res);
2276 if (is_zero_ether_addr(adapter->hw.mac.addr)) {
2277 /* restore current mac address */
2278 ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr);
2279 } else {
2280 netif_addr_lock_bh(netdev);
2281 /* refresh current mac address if changed */
2282 ether_addr_copy(netdev->perm_addr,
2283 adapter->hw.mac.addr);
2284 netif_addr_unlock_bh(netdev);
2285 }
2286 spin_lock_bh(&adapter->mac_vlan_list_lock);
2287 iavf_add_filter(adapter, adapter->hw.mac.addr);
2288
2289 if (VLAN_ALLOWED(adapter)) {
2290 if (!list_empty(&adapter->vlan_filter_list)) {
2291 struct iavf_vlan_filter *vlf;
2292
2293 /* re-add all VLAN filters over virtchnl */
2294 list_for_each_entry(vlf,
2295 &adapter->vlan_filter_list,
2296 list)
2297 vlf->state = IAVF_VLAN_ADD;
2298
2299 adapter->aq_required |=
2300 IAVF_FLAG_AQ_ADD_VLAN_FILTER;
2301 }
2302 }
2303
2304 spin_unlock_bh(&adapter->mac_vlan_list_lock);
2305
2306 iavf_activate_fdir_filters(adapter);
2307
2308 iavf_parse_vf_resource_msg(adapter);
2309
2310 /* negotiated VIRTCHNL_VF_OFFLOAD_VLAN_V2, so wait for the
2311 * response to VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS to finish
2312 * configuration
2313 */
2314 if (VLAN_V2_ALLOWED(adapter))
2315 break;
2316 /* fallthrough and finish config if VIRTCHNL_VF_OFFLOAD_VLAN_V2
2317 * wasn't successfully negotiated with the PF
2318 */
2319 }
2320 fallthrough;
2321 case VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS: {
2322 struct iavf_mac_filter *f;
2323 bool was_mac_changed;
2324 u64 aq_required = 0;
2325
2326 if (v_opcode == VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS)
2327 memcpy(&adapter->vlan_v2_caps, msg,
2328 min_t(u16, msglen,
2329 sizeof(adapter->vlan_v2_caps)));
2330
2331 iavf_process_config(adapter);
2332 adapter->flags |= IAVF_FLAG_SETUP_NETDEV_FEATURES;
2333 iavf_schedule_finish_config(adapter);
2334
2335 iavf_set_queue_vlan_tag_loc(adapter);
2336
2337 was_mac_changed = !ether_addr_equal(netdev->dev_addr,
2338 adapter->hw.mac.addr);
2339
2340 spin_lock_bh(&adapter->mac_vlan_list_lock);
2341
2342 /* re-add all MAC filters */
2343 list_for_each_entry(f, &adapter->mac_filter_list, list) {
2344 if (was_mac_changed &&
2345 ether_addr_equal(netdev->dev_addr, f->macaddr))
2346 ether_addr_copy(f->macaddr,
2347 adapter->hw.mac.addr);
2348
2349 f->is_new_mac = true;
2350 f->add = true;
2351 f->add_handled = false;
2352 f->remove = false;
2353 }
2354
2355 /* re-add all VLAN filters */
2356 if (VLAN_FILTERING_ALLOWED(adapter)) {
2357 struct iavf_vlan_filter *vlf;
2358
2359 if (!list_empty(&adapter->vlan_filter_list)) {
2360 list_for_each_entry(vlf,
2361 &adapter->vlan_filter_list,
2362 list)
2363 vlf->state = IAVF_VLAN_ADD;
2364
2365 aq_required |= IAVF_FLAG_AQ_ADD_VLAN_FILTER;
2366 }
2367 }
2368
2369 spin_unlock_bh(&adapter->mac_vlan_list_lock);
2370
2371 netif_addr_lock_bh(netdev);
2372 eth_hw_addr_set(netdev, adapter->hw.mac.addr);
2373 netif_addr_unlock_bh(netdev);
2374
2375 adapter->aq_required |= IAVF_FLAG_AQ_ADD_MAC_FILTER |
2376 aq_required;
2377 }
2378 break;
2379 case VIRTCHNL_OP_ENABLE_QUEUES:
2380 /* enable transmits */
2381 iavf_irq_enable(adapter, true);
2382 wake_up(&adapter->reset_waitqueue);
2383 adapter->flags &= ~IAVF_FLAG_QUEUES_DISABLED;
2384 break;
2385 case VIRTCHNL_OP_DISABLE_QUEUES:
2386 iavf_free_all_tx_resources(adapter);
2387 iavf_free_all_rx_resources(adapter);
2388 if (adapter->state == __IAVF_DOWN_PENDING) {
2389 iavf_change_state(adapter, __IAVF_DOWN);
2390 wake_up(&adapter->down_waitqueue);
2391 }
2392 break;
2393 case VIRTCHNL_OP_VERSION:
2394 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
2395 /* Don't display an error if we get these out of sequence.
2396 * If the firmware needed to get kicked, we'll get these and
2397 * it's no problem.
2398 */
2399 if (v_opcode != adapter->current_op)
2400 return;
2401 break;
2402 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: {
2403 struct virtchnl_rss_hena *vrh = (struct virtchnl_rss_hena *)msg;
2404
2405 if (msglen == sizeof(*vrh))
2406 adapter->hena = vrh->hena;
2407 else
2408 dev_warn(&adapter->pdev->dev,
2409 "Invalid message %d from PF\n", v_opcode);
2410 }
2411 break;
2412 case VIRTCHNL_OP_REQUEST_QUEUES: {
2413 struct virtchnl_vf_res_request *vfres =
2414 (struct virtchnl_vf_res_request *)msg;
2415
2416 if (vfres->num_queue_pairs != adapter->num_req_queues) {
2417 dev_info(&adapter->pdev->dev,
2418 "Requested %d queues, PF can support %d\n",
2419 adapter->num_req_queues,
2420 vfres->num_queue_pairs);
2421 adapter->num_req_queues = 0;
2422 adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
2423 }
2424 }
2425 break;
2426 case VIRTCHNL_OP_ADD_CLOUD_FILTER: {
2427 struct iavf_cloud_filter *cf;
2428
2429 list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
2430 if (cf->state == __IAVF_CF_ADD_PENDING)
2431 cf->state = __IAVF_CF_ACTIVE;
2432 }
2433 }
2434 break;
2435 case VIRTCHNL_OP_DEL_CLOUD_FILTER: {
2436 struct iavf_cloud_filter *cf, *cftmp;
2437
2438 list_for_each_entry_safe(cf, cftmp, &adapter->cloud_filter_list,
2439 list) {
2440 if (cf->state == __IAVF_CF_DEL_PENDING) {
2441 cf->state = __IAVF_CF_INVALID;
2442 list_del(&cf->list);
2443 kfree(cf);
2444 adapter->num_cloud_filters--;
2445 }
2446 }
2447 }
2448 break;
2449 case VIRTCHNL_OP_ADD_FDIR_FILTER: {
2450 struct virtchnl_fdir_add *add_fltr = (struct virtchnl_fdir_add *)msg;
2451 struct iavf_fdir_fltr *fdir, *fdir_tmp;
2452
2453 spin_lock_bh(&adapter->fdir_fltr_lock);
2454 list_for_each_entry_safe(fdir, fdir_tmp,
2455 &adapter->fdir_list_head,
2456 list) {
2457 if (fdir->state == IAVF_FDIR_FLTR_ADD_PENDING) {
2458 if (add_fltr->status == VIRTCHNL_FDIR_SUCCESS) {
2459 dev_info(&adapter->pdev->dev, "Flow Director filter with location %u is added\n",
2460 fdir->loc);
2461 fdir->state = IAVF_FDIR_FLTR_ACTIVE;
2462 fdir->flow_id = add_fltr->flow_id;
2463 } else {
2464 dev_info(&adapter->pdev->dev, "Failed to add Flow Director filter with status: %d\n",
2465 add_fltr->status);
2466 iavf_print_fdir_fltr(adapter, fdir);
2467 list_del(&fdir->list);
2468 kfree(fdir);
2469 adapter->fdir_active_fltr--;
2470 }
2471 }
2472 }
2473 spin_unlock_bh(&adapter->fdir_fltr_lock);
2474 }
2475 break;
2476 case VIRTCHNL_OP_DEL_FDIR_FILTER: {
2477 struct virtchnl_fdir_del *del_fltr = (struct virtchnl_fdir_del *)msg;
2478 struct iavf_fdir_fltr *fdir, *fdir_tmp;
2479
2480 spin_lock_bh(&adapter->fdir_fltr_lock);
2481 list_for_each_entry_safe(fdir, fdir_tmp, &adapter->fdir_list_head,
2482 list) {
2483 if (fdir->state == IAVF_FDIR_FLTR_DEL_PENDING) {
2484 if (del_fltr->status == VIRTCHNL_FDIR_SUCCESS ||
2485 del_fltr->status ==
2486 VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST) {
2487 dev_info(&adapter->pdev->dev, "Flow Director filter with location %u is deleted\n",
2488 fdir->loc);
2489 list_del(&fdir->list);
2490 kfree(fdir);
2491 adapter->fdir_active_fltr--;
2492 } else {
2493 fdir->state = IAVF_FDIR_FLTR_ACTIVE;
2494 dev_info(&adapter->pdev->dev, "Failed to delete Flow Director filter with status: %d\n",
2495 del_fltr->status);
2496 iavf_print_fdir_fltr(adapter, fdir);
2497 }
2498 } else if (fdir->state == IAVF_FDIR_FLTR_DIS_PENDING) {
2499 if (del_fltr->status == VIRTCHNL_FDIR_SUCCESS ||
2500 del_fltr->status ==
2501 VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST) {
2502 fdir->state = IAVF_FDIR_FLTR_INACTIVE;
2503 } else {
2504 fdir->state = IAVF_FDIR_FLTR_ACTIVE;
2505 dev_info(&adapter->pdev->dev, "Failed to disable Flow Director filter with status: %d\n",
2506 del_fltr->status);
2507 iavf_print_fdir_fltr(adapter, fdir);
2508 }
2509 }
2510 }
2511 spin_unlock_bh(&adapter->fdir_fltr_lock);
2512 }
2513 break;
2514 case VIRTCHNL_OP_ADD_RSS_CFG: {
2515 struct iavf_adv_rss *rss;
2516
2517 spin_lock_bh(&adapter->adv_rss_lock);
2518 list_for_each_entry(rss, &adapter->adv_rss_list_head, list) {
2519 if (rss->state == IAVF_ADV_RSS_ADD_PENDING) {
2520 iavf_print_adv_rss_cfg(adapter, rss,
2521 "Input set change for",
2522 "successful");
2523 rss->state = IAVF_ADV_RSS_ACTIVE;
2524 }
2525 }
2526 spin_unlock_bh(&adapter->adv_rss_lock);
2527 }
2528 break;
2529 case VIRTCHNL_OP_DEL_RSS_CFG: {
2530 struct iavf_adv_rss *rss, *rss_tmp;
2531
2532 spin_lock_bh(&adapter->adv_rss_lock);
2533 list_for_each_entry_safe(rss, rss_tmp,
2534 &adapter->adv_rss_list_head, list) {
2535 if (rss->state == IAVF_ADV_RSS_DEL_PENDING) {
2536 list_del(&rss->list);
2537 kfree(rss);
2538 }
2539 }
2540 spin_unlock_bh(&adapter->adv_rss_lock);
2541 }
2542 break;
2543 case VIRTCHNL_OP_ADD_VLAN_V2: {
2544 struct iavf_vlan_filter *f;
2545
2546 spin_lock_bh(&adapter->mac_vlan_list_lock);
2547 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
2548 if (f->state == IAVF_VLAN_IS_NEW)
2549 f->state = IAVF_VLAN_ACTIVE;
2550 }
2551 spin_unlock_bh(&adapter->mac_vlan_list_lock);
2552 }
2553 break;
2554 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
2555 /* PF enabled vlan strip on this VF.
2556 * Update netdev->features if needed to be in sync with ethtool.
2557 */
2558 if (!v_retval)
2559 iavf_netdev_features_vlan_strip_set(netdev, true);
2560 break;
2561 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
2562 /* PF disabled vlan strip on this VF.
2563 * Update netdev->features if needed to be in sync with ethtool.
2564 */
2565 if (!v_retval)
2566 iavf_netdev_features_vlan_strip_set(netdev, false);
2567 break;
2568 default:
2569 if (adapter->current_op && (v_opcode != adapter->current_op))
2570 dev_warn(&adapter->pdev->dev, "Expected response %d from PF, received %d\n",
2571 adapter->current_op, v_opcode);
2572 break;
2573 } /* switch v_opcode */
2574 adapter->current_op = VIRTCHNL_OP_UNKNOWN;
2575}
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2013 - 2018 Intel Corporation. */
3
4#include "iavf.h"
5#include "iavf_prototype.h"
6#include "iavf_client.h"
7
8/* busy wait delay in msec */
9#define IAVF_BUSY_WAIT_DELAY 10
10#define IAVF_BUSY_WAIT_COUNT 50
11
12/**
13 * iavf_send_pf_msg
14 * @adapter: adapter structure
15 * @op: virtual channel opcode
16 * @msg: pointer to message buffer
17 * @len: message length
18 *
19 * Send message to PF and print status if failure.
20 **/
21static int iavf_send_pf_msg(struct iavf_adapter *adapter,
22 enum virtchnl_ops op, u8 *msg, u16 len)
23{
24 struct iavf_hw *hw = &adapter->hw;
25 enum iavf_status err;
26
27 if (adapter->flags & IAVF_FLAG_PF_COMMS_FAILED)
28 return 0; /* nothing to see here, move along */
29
30 err = iavf_aq_send_msg_to_pf(hw, op, 0, msg, len, NULL);
31 if (err)
32 dev_dbg(&adapter->pdev->dev, "Unable to send opcode %d to PF, err %s, aq_err %s\n",
33 op, iavf_stat_str(hw, err),
34 iavf_aq_str(hw, hw->aq.asq_last_status));
35 return err;
36}
37
38/**
39 * iavf_send_api_ver
40 * @adapter: adapter structure
41 *
42 * Send API version admin queue message to the PF. The reply is not checked
43 * in this function. Returns 0 if the message was successfully
44 * sent, or one of the IAVF_ADMIN_QUEUE_ERROR_ statuses if not.
45 **/
46int iavf_send_api_ver(struct iavf_adapter *adapter)
47{
48 struct virtchnl_version_info vvi;
49
50 vvi.major = VIRTCHNL_VERSION_MAJOR;
51 vvi.minor = VIRTCHNL_VERSION_MINOR;
52
53 return iavf_send_pf_msg(adapter, VIRTCHNL_OP_VERSION, (u8 *)&vvi,
54 sizeof(vvi));
55}
56
57/**
58 * iavf_verify_api_ver
59 * @adapter: adapter structure
60 *
61 * Compare API versions with the PF. Must be called after admin queue is
62 * initialized. Returns 0 if API versions match, -EIO if they do not,
63 * IAVF_ERR_ADMIN_QUEUE_NO_WORK if the admin queue is empty, and any errors
64 * from the firmware are propagated.
65 **/
66int iavf_verify_api_ver(struct iavf_adapter *adapter)
67{
68 struct virtchnl_version_info *pf_vvi;
69 struct iavf_hw *hw = &adapter->hw;
70 struct iavf_arq_event_info event;
71 enum virtchnl_ops op;
72 enum iavf_status err;
73
74 event.buf_len = IAVF_MAX_AQ_BUF_SIZE;
75 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
76 if (!event.msg_buf) {
77 err = -ENOMEM;
78 goto out;
79 }
80
81 while (1) {
82 err = iavf_clean_arq_element(hw, &event, NULL);
83 /* When the AQ is empty, iavf_clean_arq_element will return
84 * nonzero and this loop will terminate.
85 */
86 if (err)
87 goto out_alloc;
88 op =
89 (enum virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
90 if (op == VIRTCHNL_OP_VERSION)
91 break;
92 }
93
94
95 err = (enum iavf_status)le32_to_cpu(event.desc.cookie_low);
96 if (err)
97 goto out_alloc;
98
99 if (op != VIRTCHNL_OP_VERSION) {
100 dev_info(&adapter->pdev->dev, "Invalid reply type %d from PF\n",
101 op);
102 err = -EIO;
103 goto out_alloc;
104 }
105
106 pf_vvi = (struct virtchnl_version_info *)event.msg_buf;
107 adapter->pf_version = *pf_vvi;
108
109 if ((pf_vvi->major > VIRTCHNL_VERSION_MAJOR) ||
110 ((pf_vvi->major == VIRTCHNL_VERSION_MAJOR) &&
111 (pf_vvi->minor > VIRTCHNL_VERSION_MINOR)))
112 err = -EIO;
113
114out_alloc:
115 kfree(event.msg_buf);
116out:
117 return err;
118}
119
120/**
121 * iavf_send_vf_config_msg
122 * @adapter: adapter structure
123 *
124 * Send VF configuration request admin queue message to the PF. The reply
125 * is not checked in this function. Returns 0 if the message was
126 * successfully sent, or one of the IAVF_ADMIN_QUEUE_ERROR_ statuses if not.
127 **/
128int iavf_send_vf_config_msg(struct iavf_adapter *adapter)
129{
130 u32 caps;
131
132 caps = VIRTCHNL_VF_OFFLOAD_L2 |
133 VIRTCHNL_VF_OFFLOAD_RSS_PF |
134 VIRTCHNL_VF_OFFLOAD_RSS_AQ |
135 VIRTCHNL_VF_OFFLOAD_RSS_REG |
136 VIRTCHNL_VF_OFFLOAD_VLAN |
137 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR |
138 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2 |
139 VIRTCHNL_VF_OFFLOAD_ENCAP |
140 VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM |
141 VIRTCHNL_VF_OFFLOAD_REQ_QUEUES |
142 VIRTCHNL_VF_OFFLOAD_ADQ |
143 VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
144
145 adapter->current_op = VIRTCHNL_OP_GET_VF_RESOURCES;
146 adapter->aq_required &= ~IAVF_FLAG_AQ_GET_CONFIG;
147 if (PF_IS_V11(adapter))
148 return iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_VF_RESOURCES,
149 (u8 *)&caps, sizeof(caps));
150 else
151 return iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_VF_RESOURCES,
152 NULL, 0);
153}
154
155/**
156 * iavf_validate_num_queues
157 * @adapter: adapter structure
158 *
159 * Validate that the number of queues the PF has sent in
160 * VIRTCHNL_OP_GET_VF_RESOURCES is not larger than the VF can handle.
161 **/
162static void iavf_validate_num_queues(struct iavf_adapter *adapter)
163{
164 if (adapter->vf_res->num_queue_pairs > IAVF_MAX_REQ_QUEUES) {
165 struct virtchnl_vsi_resource *vsi_res;
166 int i;
167
168 dev_info(&adapter->pdev->dev, "Received %d queues, but can only have a max of %d\n",
169 adapter->vf_res->num_queue_pairs,
170 IAVF_MAX_REQ_QUEUES);
171 dev_info(&adapter->pdev->dev, "Fixing by reducing queues to %d\n",
172 IAVF_MAX_REQ_QUEUES);
173 adapter->vf_res->num_queue_pairs = IAVF_MAX_REQ_QUEUES;
174 for (i = 0; i < adapter->vf_res->num_vsis; i++) {
175 vsi_res = &adapter->vf_res->vsi_res[i];
176 vsi_res->num_queue_pairs = IAVF_MAX_REQ_QUEUES;
177 }
178 }
179}
180
181/**
182 * iavf_get_vf_config
183 * @adapter: private adapter structure
184 *
185 * Get VF configuration from PF and populate hw structure. Must be called after
186 * admin queue is initialized. Busy waits until response is received from PF,
187 * with maximum timeout. Response from PF is returned in the buffer for further
188 * processing by the caller.
189 **/
190int iavf_get_vf_config(struct iavf_adapter *adapter)
191{
192 struct iavf_hw *hw = &adapter->hw;
193 struct iavf_arq_event_info event;
194 enum virtchnl_ops op;
195 enum iavf_status err;
196 u16 len;
197
198 len = sizeof(struct virtchnl_vf_resource) +
199 IAVF_MAX_VF_VSI * sizeof(struct virtchnl_vsi_resource);
200 event.buf_len = len;
201 event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
202 if (!event.msg_buf) {
203 err = -ENOMEM;
204 goto out;
205 }
206
207 while (1) {
208 /* When the AQ is empty, iavf_clean_arq_element will return
209 * nonzero and this loop will terminate.
210 */
211 err = iavf_clean_arq_element(hw, &event, NULL);
212 if (err)
213 goto out_alloc;
214 op =
215 (enum virtchnl_ops)le32_to_cpu(event.desc.cookie_high);
216 if (op == VIRTCHNL_OP_GET_VF_RESOURCES)
217 break;
218 }
219
220 err = (enum iavf_status)le32_to_cpu(event.desc.cookie_low);
221 memcpy(adapter->vf_res, event.msg_buf, min(event.msg_len, len));
222
223 /* some PFs send more queues than we should have so validate that
224 * we aren't getting too many queues
225 */
226 if (!err)
227 iavf_validate_num_queues(adapter);
228 iavf_vf_parse_hw_config(hw, adapter->vf_res);
229out_alloc:
230 kfree(event.msg_buf);
231out:
232 return err;
233}
234
235/**
236 * iavf_configure_queues
237 * @adapter: adapter structure
238 *
239 * Request that the PF set up our (previously allocated) queues.
240 **/
241void iavf_configure_queues(struct iavf_adapter *adapter)
242{
243 struct virtchnl_vsi_queue_config_info *vqci;
244 struct virtchnl_queue_pair_info *vqpi;
245 int pairs = adapter->num_active_queues;
246 int i, max_frame = IAVF_MAX_RXBUFFER;
247 size_t len;
248
249 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
250 /* bail because we already have a command pending */
251 dev_err(&adapter->pdev->dev, "Cannot configure queues, command %d pending\n",
252 adapter->current_op);
253 return;
254 }
255 adapter->current_op = VIRTCHNL_OP_CONFIG_VSI_QUEUES;
256 len = struct_size(vqci, qpair, pairs);
257 vqci = kzalloc(len, GFP_KERNEL);
258 if (!vqci)
259 return;
260
261 /* Limit maximum frame size when jumbo frames is not enabled */
262 if (!(adapter->flags & IAVF_FLAG_LEGACY_RX) &&
263 (adapter->netdev->mtu <= ETH_DATA_LEN))
264 max_frame = IAVF_RXBUFFER_1536 - NET_IP_ALIGN;
265
266 vqci->vsi_id = adapter->vsi_res->vsi_id;
267 vqci->num_queue_pairs = pairs;
268 vqpi = vqci->qpair;
269 /* Size check is not needed here - HW max is 16 queue pairs, and we
270 * can fit info for 31 of them into the AQ buffer before it overflows.
271 */
272 for (i = 0; i < pairs; i++) {
273 vqpi->txq.vsi_id = vqci->vsi_id;
274 vqpi->txq.queue_id = i;
275 vqpi->txq.ring_len = adapter->tx_rings[i].count;
276 vqpi->txq.dma_ring_addr = adapter->tx_rings[i].dma;
277 vqpi->rxq.vsi_id = vqci->vsi_id;
278 vqpi->rxq.queue_id = i;
279 vqpi->rxq.ring_len = adapter->rx_rings[i].count;
280 vqpi->rxq.dma_ring_addr = adapter->rx_rings[i].dma;
281 vqpi->rxq.max_pkt_size = max_frame;
282 vqpi->rxq.databuffer_size =
283 ALIGN(adapter->rx_rings[i].rx_buf_len,
284 BIT_ULL(IAVF_RXQ_CTX_DBUFF_SHIFT));
285 vqpi++;
286 }
287
288 adapter->aq_required &= ~IAVF_FLAG_AQ_CONFIGURE_QUEUES;
289 iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
290 (u8 *)vqci, len);
291 kfree(vqci);
292}
293
294/**
295 * iavf_enable_queues
296 * @adapter: adapter structure
297 *
298 * Request that the PF enable all of our queues.
299 **/
300void iavf_enable_queues(struct iavf_adapter *adapter)
301{
302 struct virtchnl_queue_select vqs;
303
304 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
305 /* bail because we already have a command pending */
306 dev_err(&adapter->pdev->dev, "Cannot enable queues, command %d pending\n",
307 adapter->current_op);
308 return;
309 }
310 adapter->current_op = VIRTCHNL_OP_ENABLE_QUEUES;
311 vqs.vsi_id = adapter->vsi_res->vsi_id;
312 vqs.tx_queues = BIT(adapter->num_active_queues) - 1;
313 vqs.rx_queues = vqs.tx_queues;
314 adapter->aq_required &= ~IAVF_FLAG_AQ_ENABLE_QUEUES;
315 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ENABLE_QUEUES,
316 (u8 *)&vqs, sizeof(vqs));
317}
318
319/**
320 * iavf_disable_queues
321 * @adapter: adapter structure
322 *
323 * Request that the PF disable all of our queues.
324 **/
325void iavf_disable_queues(struct iavf_adapter *adapter)
326{
327 struct virtchnl_queue_select vqs;
328
329 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
330 /* bail because we already have a command pending */
331 dev_err(&adapter->pdev->dev, "Cannot disable queues, command %d pending\n",
332 adapter->current_op);
333 return;
334 }
335 adapter->current_op = VIRTCHNL_OP_DISABLE_QUEUES;
336 vqs.vsi_id = adapter->vsi_res->vsi_id;
337 vqs.tx_queues = BIT(adapter->num_active_queues) - 1;
338 vqs.rx_queues = vqs.tx_queues;
339 adapter->aq_required &= ~IAVF_FLAG_AQ_DISABLE_QUEUES;
340 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DISABLE_QUEUES,
341 (u8 *)&vqs, sizeof(vqs));
342}
343
344/**
345 * iavf_map_queues
346 * @adapter: adapter structure
347 *
348 * Request that the PF map queues to interrupt vectors. Misc causes, including
349 * admin queue, are always mapped to vector 0.
350 **/
351void iavf_map_queues(struct iavf_adapter *adapter)
352{
353 struct virtchnl_irq_map_info *vimi;
354 struct virtchnl_vector_map *vecmap;
355 struct iavf_q_vector *q_vector;
356 int v_idx, q_vectors;
357 size_t len;
358
359 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
360 /* bail because we already have a command pending */
361 dev_err(&adapter->pdev->dev, "Cannot map queues to vectors, command %d pending\n",
362 adapter->current_op);
363 return;
364 }
365 adapter->current_op = VIRTCHNL_OP_CONFIG_IRQ_MAP;
366
367 q_vectors = adapter->num_msix_vectors - NONQ_VECS;
368
369 len = struct_size(vimi, vecmap, adapter->num_msix_vectors);
370 vimi = kzalloc(len, GFP_KERNEL);
371 if (!vimi)
372 return;
373
374 vimi->num_vectors = adapter->num_msix_vectors;
375 /* Queue vectors first */
376 for (v_idx = 0; v_idx < q_vectors; v_idx++) {
377 q_vector = &adapter->q_vectors[v_idx];
378 vecmap = &vimi->vecmap[v_idx];
379
380 vecmap->vsi_id = adapter->vsi_res->vsi_id;
381 vecmap->vector_id = v_idx + NONQ_VECS;
382 vecmap->txq_map = q_vector->ring_mask;
383 vecmap->rxq_map = q_vector->ring_mask;
384 vecmap->rxitr_idx = IAVF_RX_ITR;
385 vecmap->txitr_idx = IAVF_TX_ITR;
386 }
387 /* Misc vector last - this is only for AdminQ messages */
388 vecmap = &vimi->vecmap[v_idx];
389 vecmap->vsi_id = adapter->vsi_res->vsi_id;
390 vecmap->vector_id = 0;
391 vecmap->txq_map = 0;
392 vecmap->rxq_map = 0;
393
394 adapter->aq_required &= ~IAVF_FLAG_AQ_MAP_VECTORS;
395 iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_IRQ_MAP,
396 (u8 *)vimi, len);
397 kfree(vimi);
398}
399
400/**
401 * iavf_add_ether_addrs
402 * @adapter: adapter structure
403 *
404 * Request that the PF add one or more addresses to our filters.
405 **/
406void iavf_add_ether_addrs(struct iavf_adapter *adapter)
407{
408 struct virtchnl_ether_addr_list *veal;
409 struct iavf_mac_filter *f;
410 int i = 0, count = 0;
411 bool more = false;
412 size_t len;
413
414 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
415 /* bail because we already have a command pending */
416 dev_err(&adapter->pdev->dev, "Cannot add filters, command %d pending\n",
417 adapter->current_op);
418 return;
419 }
420
421 spin_lock_bh(&adapter->mac_vlan_list_lock);
422
423 list_for_each_entry(f, &adapter->mac_filter_list, list) {
424 if (f->add)
425 count++;
426 }
427 if (!count) {
428 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_MAC_FILTER;
429 spin_unlock_bh(&adapter->mac_vlan_list_lock);
430 return;
431 }
432 adapter->current_op = VIRTCHNL_OP_ADD_ETH_ADDR;
433
434 len = struct_size(veal, list, count);
435 if (len > IAVF_MAX_AQ_BUF_SIZE) {
436 dev_warn(&adapter->pdev->dev, "Too many add MAC changes in one request\n");
437 count = (IAVF_MAX_AQ_BUF_SIZE -
438 sizeof(struct virtchnl_ether_addr_list)) /
439 sizeof(struct virtchnl_ether_addr);
440 len = struct_size(veal, list, count);
441 more = true;
442 }
443
444 veal = kzalloc(len, GFP_ATOMIC);
445 if (!veal) {
446 spin_unlock_bh(&adapter->mac_vlan_list_lock);
447 return;
448 }
449
450 veal->vsi_id = adapter->vsi_res->vsi_id;
451 veal->num_elements = count;
452 list_for_each_entry(f, &adapter->mac_filter_list, list) {
453 if (f->add) {
454 ether_addr_copy(veal->list[i].addr, f->macaddr);
455 i++;
456 f->add = false;
457 if (i == count)
458 break;
459 }
460 }
461 if (!more)
462 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_MAC_FILTER;
463
464 spin_unlock_bh(&adapter->mac_vlan_list_lock);
465
466 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_ETH_ADDR, (u8 *)veal, len);
467 kfree(veal);
468}
469
470/**
471 * iavf_del_ether_addrs
472 * @adapter: adapter structure
473 *
474 * Request that the PF remove one or more addresses from our filters.
475 **/
476void iavf_del_ether_addrs(struct iavf_adapter *adapter)
477{
478 struct virtchnl_ether_addr_list *veal;
479 struct iavf_mac_filter *f, *ftmp;
480 int i = 0, count = 0;
481 bool more = false;
482 size_t len;
483
484 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
485 /* bail because we already have a command pending */
486 dev_err(&adapter->pdev->dev, "Cannot remove filters, command %d pending\n",
487 adapter->current_op);
488 return;
489 }
490
491 spin_lock_bh(&adapter->mac_vlan_list_lock);
492
493 list_for_each_entry(f, &adapter->mac_filter_list, list) {
494 if (f->remove)
495 count++;
496 }
497 if (!count) {
498 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_MAC_FILTER;
499 spin_unlock_bh(&adapter->mac_vlan_list_lock);
500 return;
501 }
502 adapter->current_op = VIRTCHNL_OP_DEL_ETH_ADDR;
503
504 len = struct_size(veal, list, count);
505 if (len > IAVF_MAX_AQ_BUF_SIZE) {
506 dev_warn(&adapter->pdev->dev, "Too many delete MAC changes in one request\n");
507 count = (IAVF_MAX_AQ_BUF_SIZE -
508 sizeof(struct virtchnl_ether_addr_list)) /
509 sizeof(struct virtchnl_ether_addr);
510 len = struct_size(veal, list, count);
511 more = true;
512 }
513 veal = kzalloc(len, GFP_ATOMIC);
514 if (!veal) {
515 spin_unlock_bh(&adapter->mac_vlan_list_lock);
516 return;
517 }
518
519 veal->vsi_id = adapter->vsi_res->vsi_id;
520 veal->num_elements = count;
521 list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) {
522 if (f->remove) {
523 ether_addr_copy(veal->list[i].addr, f->macaddr);
524 i++;
525 list_del(&f->list);
526 kfree(f);
527 if (i == count)
528 break;
529 }
530 }
531 if (!more)
532 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_MAC_FILTER;
533
534 spin_unlock_bh(&adapter->mac_vlan_list_lock);
535
536 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_ETH_ADDR, (u8 *)veal, len);
537 kfree(veal);
538}
539
540/**
541 * iavf_add_vlans
542 * @adapter: adapter structure
543 *
544 * Request that the PF add one or more VLAN filters to our VSI.
545 **/
546void iavf_add_vlans(struct iavf_adapter *adapter)
547{
548 struct virtchnl_vlan_filter_list *vvfl;
549 int len, i = 0, count = 0;
550 struct iavf_vlan_filter *f;
551 bool more = false;
552
553 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
554 /* bail because we already have a command pending */
555 dev_err(&adapter->pdev->dev, "Cannot add VLANs, command %d pending\n",
556 adapter->current_op);
557 return;
558 }
559
560 spin_lock_bh(&adapter->mac_vlan_list_lock);
561
562 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
563 if (f->add)
564 count++;
565 }
566 if (!count) {
567 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_VLAN_FILTER;
568 spin_unlock_bh(&adapter->mac_vlan_list_lock);
569 return;
570 }
571 adapter->current_op = VIRTCHNL_OP_ADD_VLAN;
572
573 len = sizeof(struct virtchnl_vlan_filter_list) +
574 (count * sizeof(u16));
575 if (len > IAVF_MAX_AQ_BUF_SIZE) {
576 dev_warn(&adapter->pdev->dev, "Too many add VLAN changes in one request\n");
577 count = (IAVF_MAX_AQ_BUF_SIZE -
578 sizeof(struct virtchnl_vlan_filter_list)) /
579 sizeof(u16);
580 len = sizeof(struct virtchnl_vlan_filter_list) +
581 (count * sizeof(u16));
582 more = true;
583 }
584 vvfl = kzalloc(len, GFP_ATOMIC);
585 if (!vvfl) {
586 spin_unlock_bh(&adapter->mac_vlan_list_lock);
587 return;
588 }
589
590 vvfl->vsi_id = adapter->vsi_res->vsi_id;
591 vvfl->num_elements = count;
592 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
593 if (f->add) {
594 vvfl->vlan_id[i] = f->vlan;
595 i++;
596 f->add = false;
597 if (i == count)
598 break;
599 }
600 }
601 if (!more)
602 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_VLAN_FILTER;
603
604 spin_unlock_bh(&adapter->mac_vlan_list_lock);
605
606 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_VLAN, (u8 *)vvfl, len);
607 kfree(vvfl);
608}
609
610/**
611 * iavf_del_vlans
612 * @adapter: adapter structure
613 *
614 * Request that the PF remove one or more VLAN filters from our VSI.
615 **/
616void iavf_del_vlans(struct iavf_adapter *adapter)
617{
618 struct virtchnl_vlan_filter_list *vvfl;
619 struct iavf_vlan_filter *f, *ftmp;
620 int len, i = 0, count = 0;
621 bool more = false;
622
623 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
624 /* bail because we already have a command pending */
625 dev_err(&adapter->pdev->dev, "Cannot remove VLANs, command %d pending\n",
626 adapter->current_op);
627 return;
628 }
629
630 spin_lock_bh(&adapter->mac_vlan_list_lock);
631
632 list_for_each_entry(f, &adapter->vlan_filter_list, list) {
633 if (f->remove)
634 count++;
635 }
636 if (!count) {
637 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_VLAN_FILTER;
638 spin_unlock_bh(&adapter->mac_vlan_list_lock);
639 return;
640 }
641 adapter->current_op = VIRTCHNL_OP_DEL_VLAN;
642
643 len = sizeof(struct virtchnl_vlan_filter_list) +
644 (count * sizeof(u16));
645 if (len > IAVF_MAX_AQ_BUF_SIZE) {
646 dev_warn(&adapter->pdev->dev, "Too many delete VLAN changes in one request\n");
647 count = (IAVF_MAX_AQ_BUF_SIZE -
648 sizeof(struct virtchnl_vlan_filter_list)) /
649 sizeof(u16);
650 len = sizeof(struct virtchnl_vlan_filter_list) +
651 (count * sizeof(u16));
652 more = true;
653 }
654 vvfl = kzalloc(len, GFP_ATOMIC);
655 if (!vvfl) {
656 spin_unlock_bh(&adapter->mac_vlan_list_lock);
657 return;
658 }
659
660 vvfl->vsi_id = adapter->vsi_res->vsi_id;
661 vvfl->num_elements = count;
662 list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) {
663 if (f->remove) {
664 vvfl->vlan_id[i] = f->vlan;
665 i++;
666 list_del(&f->list);
667 kfree(f);
668 if (i == count)
669 break;
670 }
671 }
672 if (!more)
673 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_VLAN_FILTER;
674
675 spin_unlock_bh(&adapter->mac_vlan_list_lock);
676
677 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_VLAN, (u8 *)vvfl, len);
678 kfree(vvfl);
679}
680
681/**
682 * iavf_set_promiscuous
683 * @adapter: adapter structure
684 * @flags: bitmask to control unicast/multicast promiscuous.
685 *
686 * Request that the PF enable promiscuous mode for our VSI.
687 **/
688void iavf_set_promiscuous(struct iavf_adapter *adapter, int flags)
689{
690 struct virtchnl_promisc_info vpi;
691 int promisc_all;
692
693 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
694 /* bail because we already have a command pending */
695 dev_err(&adapter->pdev->dev, "Cannot set promiscuous mode, command %d pending\n",
696 adapter->current_op);
697 return;
698 }
699
700 promisc_all = FLAG_VF_UNICAST_PROMISC |
701 FLAG_VF_MULTICAST_PROMISC;
702 if ((flags & promisc_all) == promisc_all) {
703 adapter->flags |= IAVF_FLAG_PROMISC_ON;
704 adapter->aq_required &= ~IAVF_FLAG_AQ_REQUEST_PROMISC;
705 dev_info(&adapter->pdev->dev, "Entering promiscuous mode\n");
706 }
707
708 if (flags & FLAG_VF_MULTICAST_PROMISC) {
709 adapter->flags |= IAVF_FLAG_ALLMULTI_ON;
710 adapter->aq_required &= ~IAVF_FLAG_AQ_REQUEST_ALLMULTI;
711 dev_info(&adapter->pdev->dev, "Entering multicast promiscuous mode\n");
712 }
713
714 if (!flags) {
715 adapter->flags &= ~(IAVF_FLAG_PROMISC_ON |
716 IAVF_FLAG_ALLMULTI_ON);
717 adapter->aq_required &= ~(IAVF_FLAG_AQ_RELEASE_PROMISC |
718 IAVF_FLAG_AQ_RELEASE_ALLMULTI);
719 dev_info(&adapter->pdev->dev, "Leaving promiscuous mode\n");
720 }
721
722 adapter->current_op = VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE;
723 vpi.vsi_id = adapter->vsi_res->vsi_id;
724 vpi.flags = flags;
725 iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
726 (u8 *)&vpi, sizeof(vpi));
727}
728
729/**
730 * iavf_request_stats
731 * @adapter: adapter structure
732 *
733 * Request VSI statistics from PF.
734 **/
735void iavf_request_stats(struct iavf_adapter *adapter)
736{
737 struct virtchnl_queue_select vqs;
738
739 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
740 /* no error message, this isn't crucial */
741 return;
742 }
743 adapter->current_op = VIRTCHNL_OP_GET_STATS;
744 vqs.vsi_id = adapter->vsi_res->vsi_id;
745 /* queue maps are ignored for this message - only the vsi is used */
746 if (iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_STATS, (u8 *)&vqs,
747 sizeof(vqs)))
748 /* if the request failed, don't lock out others */
749 adapter->current_op = VIRTCHNL_OP_UNKNOWN;
750}
751
752/**
753 * iavf_get_hena
754 * @adapter: adapter structure
755 *
756 * Request hash enable capabilities from PF
757 **/
758void iavf_get_hena(struct iavf_adapter *adapter)
759{
760 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
761 /* bail because we already have a command pending */
762 dev_err(&adapter->pdev->dev, "Cannot get RSS hash capabilities, command %d pending\n",
763 adapter->current_op);
764 return;
765 }
766 adapter->current_op = VIRTCHNL_OP_GET_RSS_HENA_CAPS;
767 adapter->aq_required &= ~IAVF_FLAG_AQ_GET_HENA;
768 iavf_send_pf_msg(adapter, VIRTCHNL_OP_GET_RSS_HENA_CAPS, NULL, 0);
769}
770
771/**
772 * iavf_set_hena
773 * @adapter: adapter structure
774 *
775 * Request the PF to set our RSS hash capabilities
776 **/
777void iavf_set_hena(struct iavf_adapter *adapter)
778{
779 struct virtchnl_rss_hena vrh;
780
781 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
782 /* bail because we already have a command pending */
783 dev_err(&adapter->pdev->dev, "Cannot set RSS hash enable, command %d pending\n",
784 adapter->current_op);
785 return;
786 }
787 vrh.hena = adapter->hena;
788 adapter->current_op = VIRTCHNL_OP_SET_RSS_HENA;
789 adapter->aq_required &= ~IAVF_FLAG_AQ_SET_HENA;
790 iavf_send_pf_msg(adapter, VIRTCHNL_OP_SET_RSS_HENA, (u8 *)&vrh,
791 sizeof(vrh));
792}
793
794/**
795 * iavf_set_rss_key
796 * @adapter: adapter structure
797 *
798 * Request the PF to set our RSS hash key
799 **/
800void iavf_set_rss_key(struct iavf_adapter *adapter)
801{
802 struct virtchnl_rss_key *vrk;
803 int len;
804
805 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
806 /* bail because we already have a command pending */
807 dev_err(&adapter->pdev->dev, "Cannot set RSS key, command %d pending\n",
808 adapter->current_op);
809 return;
810 }
811 len = sizeof(struct virtchnl_rss_key) +
812 (adapter->rss_key_size * sizeof(u8)) - 1;
813 vrk = kzalloc(len, GFP_KERNEL);
814 if (!vrk)
815 return;
816 vrk->vsi_id = adapter->vsi.id;
817 vrk->key_len = adapter->rss_key_size;
818 memcpy(vrk->key, adapter->rss_key, adapter->rss_key_size);
819
820 adapter->current_op = VIRTCHNL_OP_CONFIG_RSS_KEY;
821 adapter->aq_required &= ~IAVF_FLAG_AQ_SET_RSS_KEY;
822 iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_RSS_KEY, (u8 *)vrk, len);
823 kfree(vrk);
824}
825
826/**
827 * iavf_set_rss_lut
828 * @adapter: adapter structure
829 *
830 * Request the PF to set our RSS lookup table
831 **/
832void iavf_set_rss_lut(struct iavf_adapter *adapter)
833{
834 struct virtchnl_rss_lut *vrl;
835 int len;
836
837 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
838 /* bail because we already have a command pending */
839 dev_err(&adapter->pdev->dev, "Cannot set RSS LUT, command %d pending\n",
840 adapter->current_op);
841 return;
842 }
843 len = sizeof(struct virtchnl_rss_lut) +
844 (adapter->rss_lut_size * sizeof(u8)) - 1;
845 vrl = kzalloc(len, GFP_KERNEL);
846 if (!vrl)
847 return;
848 vrl->vsi_id = adapter->vsi.id;
849 vrl->lut_entries = adapter->rss_lut_size;
850 memcpy(vrl->lut, adapter->rss_lut, adapter->rss_lut_size);
851 adapter->current_op = VIRTCHNL_OP_CONFIG_RSS_LUT;
852 adapter->aq_required &= ~IAVF_FLAG_AQ_SET_RSS_LUT;
853 iavf_send_pf_msg(adapter, VIRTCHNL_OP_CONFIG_RSS_LUT, (u8 *)vrl, len);
854 kfree(vrl);
855}
856
857/**
858 * iavf_enable_vlan_stripping
859 * @adapter: adapter structure
860 *
861 * Request VLAN header stripping to be enabled
862 **/
863void iavf_enable_vlan_stripping(struct iavf_adapter *adapter)
864{
865 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
866 /* bail because we already have a command pending */
867 dev_err(&adapter->pdev->dev, "Cannot enable stripping, command %d pending\n",
868 adapter->current_op);
869 return;
870 }
871 adapter->current_op = VIRTCHNL_OP_ENABLE_VLAN_STRIPPING;
872 adapter->aq_required &= ~IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING;
873 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, NULL, 0);
874}
875
876/**
877 * iavf_disable_vlan_stripping
878 * @adapter: adapter structure
879 *
880 * Request VLAN header stripping to be disabled
881 **/
882void iavf_disable_vlan_stripping(struct iavf_adapter *adapter)
883{
884 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
885 /* bail because we already have a command pending */
886 dev_err(&adapter->pdev->dev, "Cannot disable stripping, command %d pending\n",
887 adapter->current_op);
888 return;
889 }
890 adapter->current_op = VIRTCHNL_OP_DISABLE_VLAN_STRIPPING;
891 adapter->aq_required &= ~IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING;
892 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, NULL, 0);
893}
894
895#define IAVF_MAX_SPEED_STRLEN 13
896
897/**
898 * iavf_print_link_message - print link up or down
899 * @adapter: adapter structure
900 *
901 * Log a message telling the world of our wonderous link status
902 */
903static void iavf_print_link_message(struct iavf_adapter *adapter)
904{
905 struct net_device *netdev = adapter->netdev;
906 int link_speed_mbps;
907 char *speed;
908
909 if (!adapter->link_up) {
910 netdev_info(netdev, "NIC Link is Down\n");
911 return;
912 }
913
914 speed = kcalloc(1, IAVF_MAX_SPEED_STRLEN, GFP_KERNEL);
915 if (!speed)
916 return;
917
918 if (ADV_LINK_SUPPORT(adapter)) {
919 link_speed_mbps = adapter->link_speed_mbps;
920 goto print_link_msg;
921 }
922
923 switch (adapter->link_speed) {
924 case VIRTCHNL_LINK_SPEED_40GB:
925 link_speed_mbps = SPEED_40000;
926 break;
927 case VIRTCHNL_LINK_SPEED_25GB:
928 link_speed_mbps = SPEED_25000;
929 break;
930 case VIRTCHNL_LINK_SPEED_20GB:
931 link_speed_mbps = SPEED_20000;
932 break;
933 case VIRTCHNL_LINK_SPEED_10GB:
934 link_speed_mbps = SPEED_10000;
935 break;
936 case VIRTCHNL_LINK_SPEED_5GB:
937 link_speed_mbps = SPEED_5000;
938 break;
939 case VIRTCHNL_LINK_SPEED_2_5GB:
940 link_speed_mbps = SPEED_2500;
941 break;
942 case VIRTCHNL_LINK_SPEED_1GB:
943 link_speed_mbps = SPEED_1000;
944 break;
945 case VIRTCHNL_LINK_SPEED_100MB:
946 link_speed_mbps = SPEED_100;
947 break;
948 default:
949 link_speed_mbps = SPEED_UNKNOWN;
950 break;
951 }
952
953print_link_msg:
954 if (link_speed_mbps > SPEED_1000) {
955 if (link_speed_mbps == SPEED_2500)
956 snprintf(speed, IAVF_MAX_SPEED_STRLEN, "2.5 Gbps");
957 else
958 /* convert to Gbps inline */
959 snprintf(speed, IAVF_MAX_SPEED_STRLEN, "%d %s",
960 link_speed_mbps / 1000, "Gbps");
961 } else if (link_speed_mbps == SPEED_UNKNOWN) {
962 snprintf(speed, IAVF_MAX_SPEED_STRLEN, "%s", "Unknown Mbps");
963 } else {
964 snprintf(speed, IAVF_MAX_SPEED_STRLEN, "%u %s",
965 link_speed_mbps, "Mbps");
966 }
967
968 netdev_info(netdev, "NIC Link is Up Speed is %s Full Duplex\n", speed);
969 kfree(speed);
970}
971
972/**
973 * iavf_get_vpe_link_status
974 * @adapter: adapter structure
975 * @vpe: virtchnl_pf_event structure
976 *
977 * Helper function for determining the link status
978 **/
979static bool
980iavf_get_vpe_link_status(struct iavf_adapter *adapter,
981 struct virtchnl_pf_event *vpe)
982{
983 if (ADV_LINK_SUPPORT(adapter))
984 return vpe->event_data.link_event_adv.link_status;
985 else
986 return vpe->event_data.link_event.link_status;
987}
988
989/**
990 * iavf_set_adapter_link_speed_from_vpe
991 * @adapter: adapter structure for which we are setting the link speed
992 * @vpe: virtchnl_pf_event structure that contains the link speed we are setting
993 *
994 * Helper function for setting iavf_adapter link speed
995 **/
996static void
997iavf_set_adapter_link_speed_from_vpe(struct iavf_adapter *adapter,
998 struct virtchnl_pf_event *vpe)
999{
1000 if (ADV_LINK_SUPPORT(adapter))
1001 adapter->link_speed_mbps =
1002 vpe->event_data.link_event_adv.link_speed;
1003 else
1004 adapter->link_speed = vpe->event_data.link_event.link_speed;
1005}
1006
1007/**
1008 * iavf_enable_channel
1009 * @adapter: adapter structure
1010 *
1011 * Request that the PF enable channels as specified by
1012 * the user via tc tool.
1013 **/
1014void iavf_enable_channels(struct iavf_adapter *adapter)
1015{
1016 struct virtchnl_tc_info *vti = NULL;
1017 size_t len;
1018 int i;
1019
1020 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1021 /* bail because we already have a command pending */
1022 dev_err(&adapter->pdev->dev, "Cannot configure mqprio, command %d pending\n",
1023 adapter->current_op);
1024 return;
1025 }
1026
1027 len = struct_size(vti, list, adapter->num_tc - 1);
1028 vti = kzalloc(len, GFP_KERNEL);
1029 if (!vti)
1030 return;
1031 vti->num_tc = adapter->num_tc;
1032 for (i = 0; i < vti->num_tc; i++) {
1033 vti->list[i].count = adapter->ch_config.ch_info[i].count;
1034 vti->list[i].offset = adapter->ch_config.ch_info[i].offset;
1035 vti->list[i].pad = 0;
1036 vti->list[i].max_tx_rate =
1037 adapter->ch_config.ch_info[i].max_tx_rate;
1038 }
1039
1040 adapter->ch_config.state = __IAVF_TC_RUNNING;
1041 adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED;
1042 adapter->current_op = VIRTCHNL_OP_ENABLE_CHANNELS;
1043 adapter->aq_required &= ~IAVF_FLAG_AQ_ENABLE_CHANNELS;
1044 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ENABLE_CHANNELS, (u8 *)vti, len);
1045 kfree(vti);
1046}
1047
1048/**
1049 * iavf_disable_channel
1050 * @adapter: adapter structure
1051 *
1052 * Request that the PF disable channels that are configured
1053 **/
1054void iavf_disable_channels(struct iavf_adapter *adapter)
1055{
1056 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1057 /* bail because we already have a command pending */
1058 dev_err(&adapter->pdev->dev, "Cannot configure mqprio, command %d pending\n",
1059 adapter->current_op);
1060 return;
1061 }
1062
1063 adapter->ch_config.state = __IAVF_TC_INVALID;
1064 adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED;
1065 adapter->current_op = VIRTCHNL_OP_DISABLE_CHANNELS;
1066 adapter->aq_required &= ~IAVF_FLAG_AQ_DISABLE_CHANNELS;
1067 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DISABLE_CHANNELS, NULL, 0);
1068}
1069
1070/**
1071 * iavf_print_cloud_filter
1072 * @adapter: adapter structure
1073 * @f: cloud filter to print
1074 *
1075 * Print the cloud filter
1076 **/
1077static void iavf_print_cloud_filter(struct iavf_adapter *adapter,
1078 struct virtchnl_filter *f)
1079{
1080 switch (f->flow_type) {
1081 case VIRTCHNL_TCP_V4_FLOW:
1082 dev_info(&adapter->pdev->dev, "dst_mac: %pM src_mac: %pM vlan_id: %hu dst_ip: %pI4 src_ip %pI4 dst_port %hu src_port %hu\n",
1083 &f->data.tcp_spec.dst_mac,
1084 &f->data.tcp_spec.src_mac,
1085 ntohs(f->data.tcp_spec.vlan_id),
1086 &f->data.tcp_spec.dst_ip[0],
1087 &f->data.tcp_spec.src_ip[0],
1088 ntohs(f->data.tcp_spec.dst_port),
1089 ntohs(f->data.tcp_spec.src_port));
1090 break;
1091 case VIRTCHNL_TCP_V6_FLOW:
1092 dev_info(&adapter->pdev->dev, "dst_mac: %pM src_mac: %pM vlan_id: %hu dst_ip: %pI6 src_ip %pI6 dst_port %hu src_port %hu\n",
1093 &f->data.tcp_spec.dst_mac,
1094 &f->data.tcp_spec.src_mac,
1095 ntohs(f->data.tcp_spec.vlan_id),
1096 &f->data.tcp_spec.dst_ip,
1097 &f->data.tcp_spec.src_ip,
1098 ntohs(f->data.tcp_spec.dst_port),
1099 ntohs(f->data.tcp_spec.src_port));
1100 break;
1101 }
1102}
1103
1104/**
1105 * iavf_add_cloud_filter
1106 * @adapter: adapter structure
1107 *
1108 * Request that the PF add cloud filters as specified
1109 * by the user via tc tool.
1110 **/
1111void iavf_add_cloud_filter(struct iavf_adapter *adapter)
1112{
1113 struct iavf_cloud_filter *cf;
1114 struct virtchnl_filter *f;
1115 int len = 0, count = 0;
1116
1117 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1118 /* bail because we already have a command pending */
1119 dev_err(&adapter->pdev->dev, "Cannot add cloud filter, command %d pending\n",
1120 adapter->current_op);
1121 return;
1122 }
1123 list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
1124 if (cf->add) {
1125 count++;
1126 break;
1127 }
1128 }
1129 if (!count) {
1130 adapter->aq_required &= ~IAVF_FLAG_AQ_ADD_CLOUD_FILTER;
1131 return;
1132 }
1133 adapter->current_op = VIRTCHNL_OP_ADD_CLOUD_FILTER;
1134
1135 len = sizeof(struct virtchnl_filter);
1136 f = kzalloc(len, GFP_KERNEL);
1137 if (!f)
1138 return;
1139
1140 list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
1141 if (cf->add) {
1142 memcpy(f, &cf->f, sizeof(struct virtchnl_filter));
1143 cf->add = false;
1144 cf->state = __IAVF_CF_ADD_PENDING;
1145 iavf_send_pf_msg(adapter, VIRTCHNL_OP_ADD_CLOUD_FILTER,
1146 (u8 *)f, len);
1147 }
1148 }
1149 kfree(f);
1150}
1151
1152/**
1153 * iavf_del_cloud_filter
1154 * @adapter: adapter structure
1155 *
1156 * Request that the PF delete cloud filters as specified
1157 * by the user via tc tool.
1158 **/
1159void iavf_del_cloud_filter(struct iavf_adapter *adapter)
1160{
1161 struct iavf_cloud_filter *cf, *cftmp;
1162 struct virtchnl_filter *f;
1163 int len = 0, count = 0;
1164
1165 if (adapter->current_op != VIRTCHNL_OP_UNKNOWN) {
1166 /* bail because we already have a command pending */
1167 dev_err(&adapter->pdev->dev, "Cannot remove cloud filter, command %d pending\n",
1168 adapter->current_op);
1169 return;
1170 }
1171 list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
1172 if (cf->del) {
1173 count++;
1174 break;
1175 }
1176 }
1177 if (!count) {
1178 adapter->aq_required &= ~IAVF_FLAG_AQ_DEL_CLOUD_FILTER;
1179 return;
1180 }
1181 adapter->current_op = VIRTCHNL_OP_DEL_CLOUD_FILTER;
1182
1183 len = sizeof(struct virtchnl_filter);
1184 f = kzalloc(len, GFP_KERNEL);
1185 if (!f)
1186 return;
1187
1188 list_for_each_entry_safe(cf, cftmp, &adapter->cloud_filter_list, list) {
1189 if (cf->del) {
1190 memcpy(f, &cf->f, sizeof(struct virtchnl_filter));
1191 cf->del = false;
1192 cf->state = __IAVF_CF_DEL_PENDING;
1193 iavf_send_pf_msg(adapter, VIRTCHNL_OP_DEL_CLOUD_FILTER,
1194 (u8 *)f, len);
1195 }
1196 }
1197 kfree(f);
1198}
1199
1200/**
1201 * iavf_request_reset
1202 * @adapter: adapter structure
1203 *
1204 * Request that the PF reset this VF. No response is expected.
1205 **/
1206void iavf_request_reset(struct iavf_adapter *adapter)
1207{
1208 /* Don't check CURRENT_OP - this is always higher priority */
1209 iavf_send_pf_msg(adapter, VIRTCHNL_OP_RESET_VF, NULL, 0);
1210 adapter->current_op = VIRTCHNL_OP_UNKNOWN;
1211}
1212
1213/**
1214 * iavf_virtchnl_completion
1215 * @adapter: adapter structure
1216 * @v_opcode: opcode sent by PF
1217 * @v_retval: retval sent by PF
1218 * @msg: message sent by PF
1219 * @msglen: message length
1220 *
1221 * Asynchronous completion function for admin queue messages. Rather than busy
1222 * wait, we fire off our requests and assume that no errors will be returned.
1223 * This function handles the reply messages.
1224 **/
1225void iavf_virtchnl_completion(struct iavf_adapter *adapter,
1226 enum virtchnl_ops v_opcode,
1227 enum iavf_status v_retval, u8 *msg, u16 msglen)
1228{
1229 struct net_device *netdev = adapter->netdev;
1230
1231 if (v_opcode == VIRTCHNL_OP_EVENT) {
1232 struct virtchnl_pf_event *vpe =
1233 (struct virtchnl_pf_event *)msg;
1234 bool link_up = iavf_get_vpe_link_status(adapter, vpe);
1235
1236 switch (vpe->event) {
1237 case VIRTCHNL_EVENT_LINK_CHANGE:
1238 iavf_set_adapter_link_speed_from_vpe(adapter, vpe);
1239
1240 /* we've already got the right link status, bail */
1241 if (adapter->link_up == link_up)
1242 break;
1243
1244 if (link_up) {
1245 /* If we get link up message and start queues
1246 * before our queues are configured it will
1247 * trigger a TX hang. In that case, just ignore
1248 * the link status message,we'll get another one
1249 * after we enable queues and actually prepared
1250 * to send traffic.
1251 */
1252 if (adapter->state != __IAVF_RUNNING)
1253 break;
1254
1255 /* For ADq enabled VF, we reconfigure VSIs and
1256 * re-allocate queues. Hence wait till all
1257 * queues are enabled.
1258 */
1259 if (adapter->flags &
1260 IAVF_FLAG_QUEUES_DISABLED)
1261 break;
1262 }
1263
1264 adapter->link_up = link_up;
1265 if (link_up) {
1266 netif_tx_start_all_queues(netdev);
1267 netif_carrier_on(netdev);
1268 } else {
1269 netif_tx_stop_all_queues(netdev);
1270 netif_carrier_off(netdev);
1271 }
1272 iavf_print_link_message(adapter);
1273 break;
1274 case VIRTCHNL_EVENT_RESET_IMPENDING:
1275 dev_info(&adapter->pdev->dev, "Reset warning received from the PF\n");
1276 if (!(adapter->flags & IAVF_FLAG_RESET_PENDING)) {
1277 adapter->flags |= IAVF_FLAG_RESET_PENDING;
1278 dev_info(&adapter->pdev->dev, "Scheduling reset task\n");
1279 queue_work(iavf_wq, &adapter->reset_task);
1280 }
1281 break;
1282 default:
1283 dev_err(&adapter->pdev->dev, "Unknown event %d from PF\n",
1284 vpe->event);
1285 break;
1286 }
1287 return;
1288 }
1289 if (v_retval) {
1290 switch (v_opcode) {
1291 case VIRTCHNL_OP_ADD_VLAN:
1292 dev_err(&adapter->pdev->dev, "Failed to add VLAN filter, error %s\n",
1293 iavf_stat_str(&adapter->hw, v_retval));
1294 break;
1295 case VIRTCHNL_OP_ADD_ETH_ADDR:
1296 dev_err(&adapter->pdev->dev, "Failed to add MAC filter, error %s\n",
1297 iavf_stat_str(&adapter->hw, v_retval));
1298 /* restore administratively set MAC address */
1299 ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr);
1300 break;
1301 case VIRTCHNL_OP_DEL_VLAN:
1302 dev_err(&adapter->pdev->dev, "Failed to delete VLAN filter, error %s\n",
1303 iavf_stat_str(&adapter->hw, v_retval));
1304 break;
1305 case VIRTCHNL_OP_DEL_ETH_ADDR:
1306 dev_err(&adapter->pdev->dev, "Failed to delete MAC filter, error %s\n",
1307 iavf_stat_str(&adapter->hw, v_retval));
1308 break;
1309 case VIRTCHNL_OP_ENABLE_CHANNELS:
1310 dev_err(&adapter->pdev->dev, "Failed to configure queue channels, error %s\n",
1311 iavf_stat_str(&adapter->hw, v_retval));
1312 adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
1313 adapter->ch_config.state = __IAVF_TC_INVALID;
1314 netdev_reset_tc(netdev);
1315 netif_tx_start_all_queues(netdev);
1316 break;
1317 case VIRTCHNL_OP_DISABLE_CHANNELS:
1318 dev_err(&adapter->pdev->dev, "Failed to disable queue channels, error %s\n",
1319 iavf_stat_str(&adapter->hw, v_retval));
1320 adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
1321 adapter->ch_config.state = __IAVF_TC_RUNNING;
1322 netif_tx_start_all_queues(netdev);
1323 break;
1324 case VIRTCHNL_OP_ADD_CLOUD_FILTER: {
1325 struct iavf_cloud_filter *cf, *cftmp;
1326
1327 list_for_each_entry_safe(cf, cftmp,
1328 &adapter->cloud_filter_list,
1329 list) {
1330 if (cf->state == __IAVF_CF_ADD_PENDING) {
1331 cf->state = __IAVF_CF_INVALID;
1332 dev_info(&adapter->pdev->dev, "Failed to add cloud filter, error %s\n",
1333 iavf_stat_str(&adapter->hw,
1334 v_retval));
1335 iavf_print_cloud_filter(adapter,
1336 &cf->f);
1337 list_del(&cf->list);
1338 kfree(cf);
1339 adapter->num_cloud_filters--;
1340 }
1341 }
1342 }
1343 break;
1344 case VIRTCHNL_OP_DEL_CLOUD_FILTER: {
1345 struct iavf_cloud_filter *cf;
1346
1347 list_for_each_entry(cf, &adapter->cloud_filter_list,
1348 list) {
1349 if (cf->state == __IAVF_CF_DEL_PENDING) {
1350 cf->state = __IAVF_CF_ACTIVE;
1351 dev_info(&adapter->pdev->dev, "Failed to del cloud filter, error %s\n",
1352 iavf_stat_str(&adapter->hw,
1353 v_retval));
1354 iavf_print_cloud_filter(adapter,
1355 &cf->f);
1356 }
1357 }
1358 }
1359 break;
1360 default:
1361 dev_err(&adapter->pdev->dev, "PF returned error %d (%s) to our request %d\n",
1362 v_retval, iavf_stat_str(&adapter->hw, v_retval),
1363 v_opcode);
1364 }
1365 }
1366 switch (v_opcode) {
1367 case VIRTCHNL_OP_ADD_ETH_ADDR: {
1368 if (!ether_addr_equal(netdev->dev_addr, adapter->hw.mac.addr))
1369 ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr);
1370 }
1371 break;
1372 case VIRTCHNL_OP_GET_STATS: {
1373 struct iavf_eth_stats *stats =
1374 (struct iavf_eth_stats *)msg;
1375 netdev->stats.rx_packets = stats->rx_unicast +
1376 stats->rx_multicast +
1377 stats->rx_broadcast;
1378 netdev->stats.tx_packets = stats->tx_unicast +
1379 stats->tx_multicast +
1380 stats->tx_broadcast;
1381 netdev->stats.rx_bytes = stats->rx_bytes;
1382 netdev->stats.tx_bytes = stats->tx_bytes;
1383 netdev->stats.tx_errors = stats->tx_errors;
1384 netdev->stats.rx_dropped = stats->rx_discards;
1385 netdev->stats.tx_dropped = stats->tx_discards;
1386 adapter->current_stats = *stats;
1387 }
1388 break;
1389 case VIRTCHNL_OP_GET_VF_RESOURCES: {
1390 u16 len = sizeof(struct virtchnl_vf_resource) +
1391 IAVF_MAX_VF_VSI *
1392 sizeof(struct virtchnl_vsi_resource);
1393 memcpy(adapter->vf_res, msg, min(msglen, len));
1394 iavf_validate_num_queues(adapter);
1395 iavf_vf_parse_hw_config(&adapter->hw, adapter->vf_res);
1396 if (is_zero_ether_addr(adapter->hw.mac.addr)) {
1397 /* restore current mac address */
1398 ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr);
1399 } else {
1400 /* refresh current mac address if changed */
1401 ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr);
1402 ether_addr_copy(netdev->perm_addr,
1403 adapter->hw.mac.addr);
1404 }
1405 spin_lock_bh(&adapter->mac_vlan_list_lock);
1406 iavf_add_filter(adapter, adapter->hw.mac.addr);
1407 spin_unlock_bh(&adapter->mac_vlan_list_lock);
1408 iavf_process_config(adapter);
1409 }
1410 break;
1411 case VIRTCHNL_OP_ENABLE_QUEUES:
1412 /* enable transmits */
1413 iavf_irq_enable(adapter, true);
1414 adapter->flags &= ~IAVF_FLAG_QUEUES_DISABLED;
1415 break;
1416 case VIRTCHNL_OP_DISABLE_QUEUES:
1417 iavf_free_all_tx_resources(adapter);
1418 iavf_free_all_rx_resources(adapter);
1419 if (adapter->state == __IAVF_DOWN_PENDING) {
1420 adapter->state = __IAVF_DOWN;
1421 wake_up(&adapter->down_waitqueue);
1422 }
1423 break;
1424 case VIRTCHNL_OP_VERSION:
1425 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
1426 /* Don't display an error if we get these out of sequence.
1427 * If the firmware needed to get kicked, we'll get these and
1428 * it's no problem.
1429 */
1430 if (v_opcode != adapter->current_op)
1431 return;
1432 break;
1433 case VIRTCHNL_OP_IWARP:
1434 /* Gobble zero-length replies from the PF. They indicate that
1435 * a previous message was received OK, and the client doesn't
1436 * care about that.
1437 */
1438 if (msglen && CLIENT_ENABLED(adapter))
1439 iavf_notify_client_message(&adapter->vsi, msg, msglen);
1440 break;
1441
1442 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
1443 adapter->client_pending &=
1444 ~(BIT(VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP));
1445 break;
1446 case VIRTCHNL_OP_GET_RSS_HENA_CAPS: {
1447 struct virtchnl_rss_hena *vrh = (struct virtchnl_rss_hena *)msg;
1448
1449 if (msglen == sizeof(*vrh))
1450 adapter->hena = vrh->hena;
1451 else
1452 dev_warn(&adapter->pdev->dev,
1453 "Invalid message %d from PF\n", v_opcode);
1454 }
1455 break;
1456 case VIRTCHNL_OP_REQUEST_QUEUES: {
1457 struct virtchnl_vf_res_request *vfres =
1458 (struct virtchnl_vf_res_request *)msg;
1459
1460 if (vfres->num_queue_pairs != adapter->num_req_queues) {
1461 dev_info(&adapter->pdev->dev,
1462 "Requested %d queues, PF can support %d\n",
1463 adapter->num_req_queues,
1464 vfres->num_queue_pairs);
1465 adapter->num_req_queues = 0;
1466 adapter->flags &= ~IAVF_FLAG_REINIT_ITR_NEEDED;
1467 }
1468 }
1469 break;
1470 case VIRTCHNL_OP_ADD_CLOUD_FILTER: {
1471 struct iavf_cloud_filter *cf;
1472
1473 list_for_each_entry(cf, &adapter->cloud_filter_list, list) {
1474 if (cf->state == __IAVF_CF_ADD_PENDING)
1475 cf->state = __IAVF_CF_ACTIVE;
1476 }
1477 }
1478 break;
1479 case VIRTCHNL_OP_DEL_CLOUD_FILTER: {
1480 struct iavf_cloud_filter *cf, *cftmp;
1481
1482 list_for_each_entry_safe(cf, cftmp, &adapter->cloud_filter_list,
1483 list) {
1484 if (cf->state == __IAVF_CF_DEL_PENDING) {
1485 cf->state = __IAVF_CF_INVALID;
1486 list_del(&cf->list);
1487 kfree(cf);
1488 adapter->num_cloud_filters--;
1489 }
1490 }
1491 }
1492 break;
1493 default:
1494 if (adapter->current_op && (v_opcode != adapter->current_op))
1495 dev_warn(&adapter->pdev->dev, "Expected response %d from PF, received %d\n",
1496 adapter->current_op, v_opcode);
1497 break;
1498 } /* switch v_opcode */
1499 adapter->current_op = VIRTCHNL_OP_UNKNOWN;
1500}