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1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2013 - 2018 Intel Corporation. */
3
4#include "i40e.h"
5#include "i40e_lan_hmc.h"
6#include "i40e_virtchnl_pf.h"
7
8/*********************notification routines***********************/
9
10/**
11 * i40e_vc_vf_broadcast
12 * @pf: pointer to the PF structure
13 * @v_opcode: operation code
14 * @v_retval: return value
15 * @msg: pointer to the msg buffer
16 * @msglen: msg length
17 *
18 * send a message to all VFs on a given PF
19 **/
20static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
21 enum virtchnl_ops v_opcode,
22 int v_retval, u8 *msg,
23 u16 msglen)
24{
25 struct i40e_hw *hw = &pf->hw;
26 struct i40e_vf *vf = pf->vf;
27 int i;
28
29 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
30 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;
31 /* Not all vfs are enabled so skip the ones that are not */
32 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
33 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
34 continue;
35
36 /* Ignore return value on purpose - a given VF may fail, but
37 * we need to keep going and send to all of them
38 */
39 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
40 msg, msglen, NULL);
41 }
42}
43
44/**
45 * i40e_vc_link_speed2mbps
46 * converts i40e_aq_link_speed to integer value of Mbps
47 * @link_speed: the speed to convert
48 *
49 * return the speed as direct value of Mbps.
50 **/
51static u32
52i40e_vc_link_speed2mbps(enum i40e_aq_link_speed link_speed)
53{
54 switch (link_speed) {
55 case I40E_LINK_SPEED_100MB:
56 return SPEED_100;
57 case I40E_LINK_SPEED_1GB:
58 return SPEED_1000;
59 case I40E_LINK_SPEED_2_5GB:
60 return SPEED_2500;
61 case I40E_LINK_SPEED_5GB:
62 return SPEED_5000;
63 case I40E_LINK_SPEED_10GB:
64 return SPEED_10000;
65 case I40E_LINK_SPEED_20GB:
66 return SPEED_20000;
67 case I40E_LINK_SPEED_25GB:
68 return SPEED_25000;
69 case I40E_LINK_SPEED_40GB:
70 return SPEED_40000;
71 case I40E_LINK_SPEED_UNKNOWN:
72 return SPEED_UNKNOWN;
73 }
74 return SPEED_UNKNOWN;
75}
76
77/**
78 * i40e_set_vf_link_state
79 * @vf: pointer to the VF structure
80 * @pfe: pointer to PF event structure
81 * @ls: pointer to link status structure
82 *
83 * set a link state on a single vf
84 **/
85static void i40e_set_vf_link_state(struct i40e_vf *vf,
86 struct virtchnl_pf_event *pfe, struct i40e_link_status *ls)
87{
88 u8 link_status = ls->link_info & I40E_AQ_LINK_UP;
89
90 if (vf->link_forced)
91 link_status = vf->link_up;
92
93 if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) {
94 pfe->event_data.link_event_adv.link_speed = link_status ?
95 i40e_vc_link_speed2mbps(ls->link_speed) : 0;
96 pfe->event_data.link_event_adv.link_status = link_status;
97 } else {
98 pfe->event_data.link_event.link_speed = link_status ?
99 i40e_virtchnl_link_speed(ls->link_speed) : 0;
100 pfe->event_data.link_event.link_status = link_status;
101 }
102}
103
104/**
105 * i40e_vc_notify_vf_link_state
106 * @vf: pointer to the VF structure
107 *
108 * send a link status message to a single VF
109 **/
110static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
111{
112 struct virtchnl_pf_event pfe;
113 struct i40e_pf *pf = vf->pf;
114 struct i40e_hw *hw = &pf->hw;
115 struct i40e_link_status *ls = &pf->hw.phy.link_info;
116 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;
117
118 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
119 pfe.severity = PF_EVENT_SEVERITY_INFO;
120
121 i40e_set_vf_link_state(vf, &pfe, ls);
122
123 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
124 0, (u8 *)&pfe, sizeof(pfe), NULL);
125}
126
127/**
128 * i40e_vc_notify_link_state
129 * @pf: pointer to the PF structure
130 *
131 * send a link status message to all VFs on a given PF
132 **/
133void i40e_vc_notify_link_state(struct i40e_pf *pf)
134{
135 int i;
136
137 for (i = 0; i < pf->num_alloc_vfs; i++)
138 i40e_vc_notify_vf_link_state(&pf->vf[i]);
139}
140
141/**
142 * i40e_vc_notify_reset
143 * @pf: pointer to the PF structure
144 *
145 * indicate a pending reset to all VFs on a given PF
146 **/
147void i40e_vc_notify_reset(struct i40e_pf *pf)
148{
149 struct virtchnl_pf_event pfe;
150
151 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
152 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
153 i40e_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, 0,
154 (u8 *)&pfe, sizeof(struct virtchnl_pf_event));
155}
156
157#ifdef CONFIG_PCI_IOV
158void i40e_restore_all_vfs_msi_state(struct pci_dev *pdev)
159{
160 u16 vf_id;
161 u16 pos;
162
163 /* Continue only if this is a PF */
164 if (!pdev->is_physfn)
165 return;
166
167 if (!pci_num_vf(pdev))
168 return;
169
170 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
171 if (pos) {
172 struct pci_dev *vf_dev = NULL;
173
174 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id);
175 while ((vf_dev = pci_get_device(pdev->vendor, vf_id, vf_dev))) {
176 if (vf_dev->is_virtfn && vf_dev->physfn == pdev)
177 pci_restore_msi_state(vf_dev);
178 }
179 }
180}
181#endif /* CONFIG_PCI_IOV */
182
183/**
184 * i40e_vc_notify_vf_reset
185 * @vf: pointer to the VF structure
186 *
187 * indicate a pending reset to the given VF
188 **/
189void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
190{
191 struct virtchnl_pf_event pfe;
192 int abs_vf_id;
193
194 /* validate the request */
195 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
196 return;
197
198 /* verify if the VF is in either init or active before proceeding */
199 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
200 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
201 return;
202
203 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id;
204
205 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
206 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
207 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, VIRTCHNL_OP_EVENT,
208 0, (u8 *)&pfe,
209 sizeof(struct virtchnl_pf_event), NULL);
210}
211/***********************misc routines*****************************/
212
213/**
214 * i40e_vc_reset_vf
215 * @vf: pointer to the VF info
216 * @notify_vf: notify vf about reset or not
217 * Reset VF handler.
218 **/
219static void i40e_vc_reset_vf(struct i40e_vf *vf, bool notify_vf)
220{
221 struct i40e_pf *pf = vf->pf;
222 int i;
223
224 if (notify_vf)
225 i40e_vc_notify_vf_reset(vf);
226
227 /* We want to ensure that an actual reset occurs initiated after this
228 * function was called. However, we do not want to wait forever, so
229 * we'll give a reasonable time and print a message if we failed to
230 * ensure a reset.
231 */
232 for (i = 0; i < 20; i++) {
233 /* If PF is in VFs releasing state reset VF is impossible,
234 * so leave it.
235 */
236 if (test_bit(__I40E_VFS_RELEASING, pf->state))
237 return;
238 if (i40e_reset_vf(vf, false))
239 return;
240 usleep_range(10000, 20000);
241 }
242
243 if (notify_vf)
244 dev_warn(&vf->pf->pdev->dev,
245 "Failed to initiate reset for VF %d after 200 milliseconds\n",
246 vf->vf_id);
247 else
248 dev_dbg(&vf->pf->pdev->dev,
249 "Failed to initiate reset for VF %d after 200 milliseconds\n",
250 vf->vf_id);
251}
252
253/**
254 * i40e_vc_isvalid_vsi_id
255 * @vf: pointer to the VF info
256 * @vsi_id: VF relative VSI id
257 *
258 * check for the valid VSI id
259 **/
260static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
261{
262 struct i40e_pf *pf = vf->pf;
263 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
264
265 return (vsi && (vsi->vf_id == vf->vf_id));
266}
267
268/**
269 * i40e_vc_isvalid_queue_id
270 * @vf: pointer to the VF info
271 * @vsi_id: vsi id
272 * @qid: vsi relative queue id
273 *
274 * check for the valid queue id
275 **/
276static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
277 u16 qid)
278{
279 struct i40e_pf *pf = vf->pf;
280 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
281
282 return (vsi && (qid < vsi->alloc_queue_pairs));
283}
284
285/**
286 * i40e_vc_isvalid_vector_id
287 * @vf: pointer to the VF info
288 * @vector_id: VF relative vector id
289 *
290 * check for the valid vector id
291 **/
292static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id)
293{
294 struct i40e_pf *pf = vf->pf;
295
296 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
297}
298
299/***********************vf resource mgmt routines*****************/
300
301/**
302 * i40e_vc_get_pf_queue_id
303 * @vf: pointer to the VF info
304 * @vsi_id: id of VSI as provided by the FW
305 * @vsi_queue_id: vsi relative queue id
306 *
307 * return PF relative queue id
308 **/
309static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
310 u8 vsi_queue_id)
311{
312 struct i40e_pf *pf = vf->pf;
313 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
314 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
315
316 if (!vsi)
317 return pf_queue_id;
318
319 if (le16_to_cpu(vsi->info.mapping_flags) &
320 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
321 pf_queue_id =
322 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
323 else
324 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
325 vsi_queue_id;
326
327 return pf_queue_id;
328}
329
330/**
331 * i40e_get_real_pf_qid
332 * @vf: pointer to the VF info
333 * @vsi_id: vsi id
334 * @queue_id: queue number
335 *
336 * wrapper function to get pf_queue_id handling ADq code as well
337 **/
338static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id)
339{
340 int i;
341
342 if (vf->adq_enabled) {
343 /* Although VF considers all the queues(can be 1 to 16) as its
344 * own but they may actually belong to different VSIs(up to 4).
345 * We need to find which queues belongs to which VSI.
346 */
347 for (i = 0; i < vf->num_tc; i++) {
348 if (queue_id < vf->ch[i].num_qps) {
349 vsi_id = vf->ch[i].vsi_id;
350 break;
351 }
352 /* find right queue id which is relative to a
353 * given VSI.
354 */
355 queue_id -= vf->ch[i].num_qps;
356 }
357 }
358
359 return i40e_vc_get_pf_queue_id(vf, vsi_id, queue_id);
360}
361
362/**
363 * i40e_config_irq_link_list
364 * @vf: pointer to the VF info
365 * @vsi_id: id of VSI as given by the FW
366 * @vecmap: irq map info
367 *
368 * configure irq link list from the map
369 **/
370static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
371 struct virtchnl_vector_map *vecmap)
372{
373 unsigned long linklistmap = 0, tempmap;
374 struct i40e_pf *pf = vf->pf;
375 struct i40e_hw *hw = &pf->hw;
376 u16 vsi_queue_id, pf_queue_id;
377 enum i40e_queue_type qtype;
378 u16 next_q, vector_id, size;
379 u32 reg, reg_idx;
380 u16 itr_idx = 0;
381
382 vector_id = vecmap->vector_id;
383 /* setup the head */
384 if (0 == vector_id)
385 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
386 else
387 reg_idx = I40E_VPINT_LNKLSTN(
388 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
389 (vector_id - 1));
390
391 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
392 /* Special case - No queues mapped on this vector */
393 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
394 goto irq_list_done;
395 }
396 tempmap = vecmap->rxq_map;
397 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
398 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
399 vsi_queue_id));
400 }
401
402 tempmap = vecmap->txq_map;
403 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
404 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
405 vsi_queue_id + 1));
406 }
407
408 size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES;
409 next_q = find_first_bit(&linklistmap, size);
410 if (unlikely(next_q == size))
411 goto irq_list_done;
412
413 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
414 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
415 pf_queue_id = i40e_get_real_pf_qid(vf, vsi_id, vsi_queue_id);
416 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
417
418 wr32(hw, reg_idx, reg);
419
420 while (next_q < size) {
421 switch (qtype) {
422 case I40E_QUEUE_TYPE_RX:
423 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
424 itr_idx = vecmap->rxitr_idx;
425 break;
426 case I40E_QUEUE_TYPE_TX:
427 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
428 itr_idx = vecmap->txitr_idx;
429 break;
430 default:
431 break;
432 }
433
434 next_q = find_next_bit(&linklistmap, size, next_q + 1);
435 if (next_q < size) {
436 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
437 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
438 pf_queue_id = i40e_get_real_pf_qid(vf,
439 vsi_id,
440 vsi_queue_id);
441 } else {
442 pf_queue_id = I40E_QUEUE_END_OF_LIST;
443 qtype = 0;
444 }
445
446 /* format for the RQCTL & TQCTL regs is same */
447 reg = (vector_id) |
448 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
449 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
450 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
451 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
452 wr32(hw, reg_idx, reg);
453 }
454
455 /* if the vf is running in polling mode and using interrupt zero,
456 * need to disable auto-mask on enabling zero interrupt for VFs.
457 */
458 if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
459 (vector_id == 0)) {
460 reg = rd32(hw, I40E_GLINT_CTL);
461 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {
462 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;
463 wr32(hw, I40E_GLINT_CTL, reg);
464 }
465 }
466
467irq_list_done:
468 i40e_flush(hw);
469}
470
471/**
472 * i40e_release_rdma_qvlist
473 * @vf: pointer to the VF.
474 *
475 **/
476static void i40e_release_rdma_qvlist(struct i40e_vf *vf)
477{
478 struct i40e_pf *pf = vf->pf;
479 struct virtchnl_rdma_qvlist_info *qvlist_info = vf->qvlist_info;
480 u32 msix_vf;
481 u32 i;
482
483 if (!vf->qvlist_info)
484 return;
485
486 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
487 for (i = 0; i < qvlist_info->num_vectors; i++) {
488 struct virtchnl_rdma_qv_info *qv_info;
489 u32 next_q_index, next_q_type;
490 struct i40e_hw *hw = &pf->hw;
491 u32 v_idx, reg_idx, reg;
492
493 qv_info = &qvlist_info->qv_info[i];
494 v_idx = qv_info->v_idx;
495 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
496 /* Figure out the queue after CEQ and make that the
497 * first queue.
498 */
499 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
500 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
501 next_q_index = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK,
502 reg);
503 next_q_type = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK,
504 reg);
505
506 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
507 reg = (next_q_index &
508 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
509 (next_q_type <<
510 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
511
512 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
513 }
514 }
515 kfree(vf->qvlist_info);
516 vf->qvlist_info = NULL;
517}
518
519/**
520 * i40e_config_rdma_qvlist
521 * @vf: pointer to the VF info
522 * @qvlist_info: queue and vector list
523 *
524 * Return 0 on success or < 0 on error
525 **/
526static int
527i40e_config_rdma_qvlist(struct i40e_vf *vf,
528 struct virtchnl_rdma_qvlist_info *qvlist_info)
529{
530 struct i40e_pf *pf = vf->pf;
531 struct i40e_hw *hw = &pf->hw;
532 struct virtchnl_rdma_qv_info *qv_info;
533 u32 v_idx, i, reg_idx, reg;
534 u32 next_q_idx, next_q_type;
535 size_t size;
536 u32 msix_vf;
537 int ret = 0;
538
539 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
540
541 if (qvlist_info->num_vectors > msix_vf) {
542 dev_warn(&pf->pdev->dev,
543 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n",
544 qvlist_info->num_vectors,
545 msix_vf);
546 ret = -EINVAL;
547 goto err_out;
548 }
549
550 kfree(vf->qvlist_info);
551 size = virtchnl_struct_size(vf->qvlist_info, qv_info,
552 qvlist_info->num_vectors);
553 vf->qvlist_info = kzalloc(size, GFP_KERNEL);
554 if (!vf->qvlist_info) {
555 ret = -ENOMEM;
556 goto err_out;
557 }
558 vf->qvlist_info->num_vectors = qvlist_info->num_vectors;
559
560 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
561 for (i = 0; i < qvlist_info->num_vectors; i++) {
562 qv_info = &qvlist_info->qv_info[i];
563
564 /* Validate vector id belongs to this vf */
565 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) {
566 ret = -EINVAL;
567 goto err_free;
568 }
569
570 v_idx = qv_info->v_idx;
571
572 vf->qvlist_info->qv_info[i] = *qv_info;
573
574 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
575 /* We might be sharing the interrupt, so get the first queue
576 * index and type, push it down the list by adding the new
577 * queue on top. Also link it with the new queue in CEQCTL.
578 */
579 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
580 next_q_idx = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK,
581 reg);
582 next_q_type = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK,
583 reg);
584
585 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
586 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
587 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |
588 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |
589 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |
590 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |
591 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));
592 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);
593
594 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
595 reg = (qv_info->ceq_idx &
596 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
597 (I40E_QUEUE_TYPE_PE_CEQ <<
598 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
599 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
600 }
601
602 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
603 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |
604 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |
605 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));
606
607 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);
608 }
609 }
610
611 return 0;
612err_free:
613 kfree(vf->qvlist_info);
614 vf->qvlist_info = NULL;
615err_out:
616 return ret;
617}
618
619/**
620 * i40e_config_vsi_tx_queue
621 * @vf: pointer to the VF info
622 * @vsi_id: id of VSI as provided by the FW
623 * @vsi_queue_id: vsi relative queue index
624 * @info: config. info
625 *
626 * configure tx queue
627 **/
628static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
629 u16 vsi_queue_id,
630 struct virtchnl_txq_info *info)
631{
632 struct i40e_pf *pf = vf->pf;
633 struct i40e_hw *hw = &pf->hw;
634 struct i40e_hmc_obj_txq tx_ctx;
635 struct i40e_vsi *vsi;
636 u16 pf_queue_id;
637 u32 qtx_ctl;
638 int ret = 0;
639
640 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
641 ret = -ENOENT;
642 goto error_context;
643 }
644 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
645 vsi = i40e_find_vsi_from_id(pf, vsi_id);
646 if (!vsi) {
647 ret = -ENOENT;
648 goto error_context;
649 }
650
651 /* clear the context structure first */
652 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
653
654 /* only set the required fields */
655 tx_ctx.base = info->dma_ring_addr / 128;
656 tx_ctx.qlen = info->ring_len;
657 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
658 tx_ctx.rdylist_act = 0;
659 tx_ctx.head_wb_ena = info->headwb_enabled;
660 tx_ctx.head_wb_addr = info->dma_headwb_addr;
661
662 /* clear the context in the HMC */
663 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
664 if (ret) {
665 dev_err(&pf->pdev->dev,
666 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
667 pf_queue_id, ret);
668 ret = -ENOENT;
669 goto error_context;
670 }
671
672 /* set the context in the HMC */
673 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
674 if (ret) {
675 dev_err(&pf->pdev->dev,
676 "Failed to set VF LAN Tx queue context %d error: %d\n",
677 pf_queue_id, ret);
678 ret = -ENOENT;
679 goto error_context;
680 }
681
682 /* associate this queue with the PCI VF function */
683 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
684 qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_PF_INDX_MASK, hw->pf_id);
685 qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_VFVM_INDX_MASK,
686 vf->vf_id + hw->func_caps.vf_base_id);
687 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
688 i40e_flush(hw);
689
690error_context:
691 return ret;
692}
693
694/**
695 * i40e_config_vsi_rx_queue
696 * @vf: pointer to the VF info
697 * @vsi_id: id of VSI as provided by the FW
698 * @vsi_queue_id: vsi relative queue index
699 * @info: config. info
700 *
701 * configure rx queue
702 **/
703static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
704 u16 vsi_queue_id,
705 struct virtchnl_rxq_info *info)
706{
707 u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
708 struct i40e_pf *pf = vf->pf;
709 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
710 struct i40e_hw *hw = &pf->hw;
711 struct i40e_hmc_obj_rxq rx_ctx;
712 int ret = 0;
713
714 /* clear the context structure first */
715 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
716
717 /* only set the required fields */
718 rx_ctx.base = info->dma_ring_addr / 128;
719 rx_ctx.qlen = info->ring_len;
720
721 if (info->splithdr_enabled) {
722 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
723 I40E_RX_SPLIT_IP |
724 I40E_RX_SPLIT_TCP_UDP |
725 I40E_RX_SPLIT_SCTP;
726 /* header length validation */
727 if (info->hdr_size > ((2 * 1024) - 64)) {
728 ret = -EINVAL;
729 goto error_param;
730 }
731 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
732
733 /* set split mode 10b */
734 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;
735 }
736
737 /* databuffer length validation */
738 if (info->databuffer_size > ((16 * 1024) - 128)) {
739 ret = -EINVAL;
740 goto error_param;
741 }
742 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
743
744 /* max pkt. length validation */
745 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
746 ret = -EINVAL;
747 goto error_param;
748 }
749 rx_ctx.rxmax = info->max_pkt_size;
750
751 /* if port VLAN is configured increase the max packet size */
752 if (vsi->info.pvid)
753 rx_ctx.rxmax += VLAN_HLEN;
754
755 /* enable 32bytes desc always */
756 rx_ctx.dsize = 1;
757
758 /* default values */
759 rx_ctx.lrxqthresh = 1;
760 rx_ctx.crcstrip = 1;
761 rx_ctx.prefena = 1;
762 rx_ctx.l2tsel = 1;
763
764 /* clear the context in the HMC */
765 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
766 if (ret) {
767 dev_err(&pf->pdev->dev,
768 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
769 pf_queue_id, ret);
770 ret = -ENOENT;
771 goto error_param;
772 }
773
774 /* set the context in the HMC */
775 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
776 if (ret) {
777 dev_err(&pf->pdev->dev,
778 "Failed to set VF LAN Rx queue context %d error: %d\n",
779 pf_queue_id, ret);
780 ret = -ENOENT;
781 goto error_param;
782 }
783
784error_param:
785 return ret;
786}
787
788/**
789 * i40e_alloc_vsi_res
790 * @vf: pointer to the VF info
791 * @idx: VSI index, applies only for ADq mode, zero otherwise
792 *
793 * alloc VF vsi context & resources
794 **/
795static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx)
796{
797 struct i40e_mac_filter *f = NULL;
798 struct i40e_pf *pf = vf->pf;
799 struct i40e_vsi *vsi;
800 u64 max_tx_rate = 0;
801 int ret = 0;
802
803 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid,
804 vf->vf_id);
805
806 if (!vsi) {
807 dev_err(&pf->pdev->dev,
808 "add vsi failed for VF %d, aq_err %d\n",
809 vf->vf_id, pf->hw.aq.asq_last_status);
810 ret = -ENOENT;
811 goto error_alloc_vsi_res;
812 }
813
814 if (!idx) {
815 u64 hena = i40e_pf_get_default_rss_hena(pf);
816 u8 broadcast[ETH_ALEN];
817
818 vf->lan_vsi_idx = vsi->idx;
819 vf->lan_vsi_id = vsi->id;
820 /* If the port VLAN has been configured and then the
821 * VF driver was removed then the VSI port VLAN
822 * configuration was destroyed. Check if there is
823 * a port VLAN and restore the VSI configuration if
824 * needed.
825 */
826 if (vf->port_vlan_id)
827 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
828
829 spin_lock_bh(&vsi->mac_filter_hash_lock);
830 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
831 f = i40e_add_mac_filter(vsi,
832 vf->default_lan_addr.addr);
833 if (!f)
834 dev_info(&pf->pdev->dev,
835 "Could not add MAC filter %pM for VF %d\n",
836 vf->default_lan_addr.addr, vf->vf_id);
837 }
838 eth_broadcast_addr(broadcast);
839 f = i40e_add_mac_filter(vsi, broadcast);
840 if (!f)
841 dev_info(&pf->pdev->dev,
842 "Could not allocate VF broadcast filter\n");
843 spin_unlock_bh(&vsi->mac_filter_hash_lock);
844 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena);
845 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32));
846 /* program mac filter only for VF VSI */
847 ret = i40e_sync_vsi_filters(vsi);
848 if (ret)
849 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
850 }
851
852 /* storing VSI index and id for ADq and don't apply the mac filter */
853 if (vf->adq_enabled) {
854 vf->ch[idx].vsi_idx = vsi->idx;
855 vf->ch[idx].vsi_id = vsi->id;
856 }
857
858 /* Set VF bandwidth if specified */
859 if (vf->tx_rate) {
860 max_tx_rate = vf->tx_rate;
861 } else if (vf->ch[idx].max_tx_rate) {
862 max_tx_rate = vf->ch[idx].max_tx_rate;
863 }
864
865 if (max_tx_rate) {
866 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR);
867 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
868 max_tx_rate, 0, NULL);
869 if (ret)
870 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
871 vf->vf_id, ret);
872 }
873
874error_alloc_vsi_res:
875 return ret;
876}
877
878/**
879 * i40e_map_pf_queues_to_vsi
880 * @vf: pointer to the VF info
881 *
882 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
883 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI.
884 **/
885static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf)
886{
887 struct i40e_pf *pf = vf->pf;
888 struct i40e_hw *hw = &pf->hw;
889 u32 reg, num_tc = 1; /* VF has at least one traffic class */
890 u16 vsi_id, qps;
891 int i, j;
892
893 if (vf->adq_enabled)
894 num_tc = vf->num_tc;
895
896 for (i = 0; i < num_tc; i++) {
897 if (vf->adq_enabled) {
898 qps = vf->ch[i].num_qps;
899 vsi_id = vf->ch[i].vsi_id;
900 } else {
901 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
902 vsi_id = vf->lan_vsi_id;
903 }
904
905 for (j = 0; j < 7; j++) {
906 if (j * 2 >= qps) {
907 /* end of list */
908 reg = 0x07FF07FF;
909 } else {
910 u16 qid = i40e_vc_get_pf_queue_id(vf,
911 vsi_id,
912 j * 2);
913 reg = qid;
914 qid = i40e_vc_get_pf_queue_id(vf, vsi_id,
915 (j * 2) + 1);
916 reg |= qid << 16;
917 }
918 i40e_write_rx_ctl(hw,
919 I40E_VSILAN_QTABLE(j, vsi_id),
920 reg);
921 }
922 }
923}
924
925/**
926 * i40e_map_pf_to_vf_queues
927 * @vf: pointer to the VF info
928 *
929 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
930 * function takes care of the second part VPLAN_QTABLE & completes VF mappings.
931 **/
932static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf)
933{
934 struct i40e_pf *pf = vf->pf;
935 struct i40e_hw *hw = &pf->hw;
936 u32 reg, total_qps = 0;
937 u32 qps, num_tc = 1; /* VF has at least one traffic class */
938 u16 vsi_id, qid;
939 int i, j;
940
941 if (vf->adq_enabled)
942 num_tc = vf->num_tc;
943
944 for (i = 0; i < num_tc; i++) {
945 if (vf->adq_enabled) {
946 qps = vf->ch[i].num_qps;
947 vsi_id = vf->ch[i].vsi_id;
948 } else {
949 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
950 vsi_id = vf->lan_vsi_id;
951 }
952
953 for (j = 0; j < qps; j++) {
954 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j);
955
956 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
957 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id),
958 reg);
959 total_qps++;
960 }
961 }
962}
963
964/**
965 * i40e_enable_vf_mappings
966 * @vf: pointer to the VF info
967 *
968 * enable VF mappings
969 **/
970static void i40e_enable_vf_mappings(struct i40e_vf *vf)
971{
972 struct i40e_pf *pf = vf->pf;
973 struct i40e_hw *hw = &pf->hw;
974 u32 reg;
975
976 /* Tell the hardware we're using noncontiguous mapping. HW requires
977 * that VF queues be mapped using this method, even when they are
978 * contiguous in real life
979 */
980 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
981 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
982
983 /* enable VF vplan_qtable mappings */
984 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
985 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
986
987 i40e_map_pf_to_vf_queues(vf);
988 i40e_map_pf_queues_to_vsi(vf);
989
990 i40e_flush(hw);
991}
992
993/**
994 * i40e_disable_vf_mappings
995 * @vf: pointer to the VF info
996 *
997 * disable VF mappings
998 **/
999static void i40e_disable_vf_mappings(struct i40e_vf *vf)
1000{
1001 struct i40e_pf *pf = vf->pf;
1002 struct i40e_hw *hw = &pf->hw;
1003 int i;
1004
1005 /* disable qp mappings */
1006 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
1007 for (i = 0; i < I40E_MAX_VSI_QP; i++)
1008 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
1009 I40E_QUEUE_END_OF_LIST);
1010 i40e_flush(hw);
1011}
1012
1013/**
1014 * i40e_free_vf_res
1015 * @vf: pointer to the VF info
1016 *
1017 * free VF resources
1018 **/
1019static void i40e_free_vf_res(struct i40e_vf *vf)
1020{
1021 struct i40e_pf *pf = vf->pf;
1022 struct i40e_hw *hw = &pf->hw;
1023 u32 reg_idx, reg;
1024 int i, j, msix_vf;
1025
1026 /* Start by disabling VF's configuration API to prevent the OS from
1027 * accessing the VF's VSI after it's freed / invalidated.
1028 */
1029 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1030
1031 /* It's possible the VF had requeuested more queues than the default so
1032 * do the accounting here when we're about to free them.
1033 */
1034 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) {
1035 pf->queues_left += vf->num_queue_pairs -
1036 I40E_DEFAULT_QUEUES_PER_VF;
1037 }
1038
1039 /* free vsi & disconnect it from the parent uplink */
1040 if (vf->lan_vsi_idx) {
1041 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
1042 vf->lan_vsi_idx = 0;
1043 vf->lan_vsi_id = 0;
1044 }
1045
1046 /* do the accounting and remove additional ADq VSI's */
1047 if (vf->adq_enabled && vf->ch[0].vsi_idx) {
1048 for (j = 0; j < vf->num_tc; j++) {
1049 /* At this point VSI0 is already released so don't
1050 * release it again and only clear their values in
1051 * structure variables
1052 */
1053 if (j)
1054 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]);
1055 vf->ch[j].vsi_idx = 0;
1056 vf->ch[j].vsi_id = 0;
1057 }
1058 }
1059 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
1060
1061 /* disable interrupts so the VF starts in a known state */
1062 for (i = 0; i < msix_vf; i++) {
1063 /* format is same for both registers */
1064 if (0 == i)
1065 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
1066 else
1067 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
1068 (vf->vf_id))
1069 + (i - 1));
1070 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
1071 i40e_flush(hw);
1072 }
1073
1074 /* clear the irq settings */
1075 for (i = 0; i < msix_vf; i++) {
1076 /* format is same for both registers */
1077 if (0 == i)
1078 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
1079 else
1080 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
1081 (vf->vf_id))
1082 + (i - 1));
1083 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
1084 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
1085 wr32(hw, reg_idx, reg);
1086 i40e_flush(hw);
1087 }
1088 /* reset some of the state variables keeping track of the resources */
1089 vf->num_queue_pairs = 0;
1090 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
1091 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
1092}
1093
1094/**
1095 * i40e_alloc_vf_res
1096 * @vf: pointer to the VF info
1097 *
1098 * allocate VF resources
1099 **/
1100static int i40e_alloc_vf_res(struct i40e_vf *vf)
1101{
1102 struct i40e_pf *pf = vf->pf;
1103 int total_queue_pairs = 0;
1104 int ret, idx;
1105
1106 if (vf->num_req_queues &&
1107 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF)
1108 pf->num_vf_qps = vf->num_req_queues;
1109 else
1110 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF;
1111
1112 /* allocate hw vsi context & associated resources */
1113 ret = i40e_alloc_vsi_res(vf, 0);
1114 if (ret)
1115 goto error_alloc;
1116 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
1117
1118 /* allocate additional VSIs based on tc information for ADq */
1119 if (vf->adq_enabled) {
1120 if (pf->queues_left >=
1121 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) {
1122 /* TC 0 always belongs to VF VSI */
1123 for (idx = 1; idx < vf->num_tc; idx++) {
1124 ret = i40e_alloc_vsi_res(vf, idx);
1125 if (ret)
1126 goto error_alloc;
1127 }
1128 /* send correct number of queues */
1129 total_queue_pairs = I40E_MAX_VF_QUEUES;
1130 } else {
1131 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n",
1132 vf->vf_id);
1133 vf->adq_enabled = false;
1134 }
1135 }
1136
1137 /* We account for each VF to get a default number of queue pairs. If
1138 * the VF has now requested more, we need to account for that to make
1139 * certain we never request more queues than we actually have left in
1140 * HW.
1141 */
1142 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF)
1143 pf->queues_left -=
1144 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF;
1145
1146 if (vf->trusted)
1147 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1148 else
1149 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1150
1151 /* store the total qps number for the runtime
1152 * VF req validation
1153 */
1154 vf->num_queue_pairs = total_queue_pairs;
1155
1156 /* VF is now completely initialized */
1157 set_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1158
1159error_alloc:
1160 if (ret)
1161 i40e_free_vf_res(vf);
1162
1163 return ret;
1164}
1165
1166#define VF_DEVICE_STATUS 0xAA
1167#define VF_TRANS_PENDING_MASK 0x20
1168/**
1169 * i40e_quiesce_vf_pci
1170 * @vf: pointer to the VF structure
1171 *
1172 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
1173 * if the transactions never clear.
1174 **/
1175static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
1176{
1177 struct i40e_pf *pf = vf->pf;
1178 struct i40e_hw *hw = &pf->hw;
1179 int vf_abs_id, i;
1180 u32 reg;
1181
1182 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
1183
1184 wr32(hw, I40E_PF_PCI_CIAA,
1185 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
1186 for (i = 0; i < 100; i++) {
1187 reg = rd32(hw, I40E_PF_PCI_CIAD);
1188 if ((reg & VF_TRANS_PENDING_MASK) == 0)
1189 return 0;
1190 udelay(1);
1191 }
1192 return -EIO;
1193}
1194
1195/**
1196 * __i40e_getnum_vf_vsi_vlan_filters
1197 * @vsi: pointer to the vsi
1198 *
1199 * called to get the number of VLANs offloaded on this VF
1200 **/
1201static int __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1202{
1203 struct i40e_mac_filter *f;
1204 u16 num_vlans = 0, bkt;
1205
1206 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1207 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
1208 num_vlans++;
1209 }
1210
1211 return num_vlans;
1212}
1213
1214/**
1215 * i40e_getnum_vf_vsi_vlan_filters
1216 * @vsi: pointer to the vsi
1217 *
1218 * wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held
1219 **/
1220static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1221{
1222 int num_vlans;
1223
1224 spin_lock_bh(&vsi->mac_filter_hash_lock);
1225 num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi);
1226 spin_unlock_bh(&vsi->mac_filter_hash_lock);
1227
1228 return num_vlans;
1229}
1230
1231/**
1232 * i40e_get_vlan_list_sync
1233 * @vsi: pointer to the VSI
1234 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller
1235 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller.
1236 * This array is allocated here, but has to be freed in caller.
1237 *
1238 * Called to get number of VLANs and VLAN list present in mac_filter_hash.
1239 **/
1240static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans,
1241 s16 **vlan_list)
1242{
1243 struct i40e_mac_filter *f;
1244 int i = 0;
1245 int bkt;
1246
1247 spin_lock_bh(&vsi->mac_filter_hash_lock);
1248 *num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi);
1249 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC);
1250 if (!(*vlan_list))
1251 goto err;
1252
1253 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1254 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1255 continue;
1256 (*vlan_list)[i++] = f->vlan;
1257 }
1258err:
1259 spin_unlock_bh(&vsi->mac_filter_hash_lock);
1260}
1261
1262/**
1263 * i40e_set_vsi_promisc
1264 * @vf: pointer to the VF struct
1265 * @seid: VSI number
1266 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable
1267 * for a given VLAN
1268 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable
1269 * for a given VLAN
1270 * @vl: List of VLANs - apply filter for given VLANs
1271 * @num_vlans: Number of elements in @vl
1272 **/
1273static int
1274i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable,
1275 bool unicast_enable, s16 *vl, u16 num_vlans)
1276{
1277 struct i40e_pf *pf = vf->pf;
1278 struct i40e_hw *hw = &pf->hw;
1279 int aq_ret, aq_tmp = 0;
1280 int i;
1281
1282 /* No VLAN to set promisc on, set on VSI */
1283 if (!num_vlans || !vl) {
1284 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid,
1285 multi_enable,
1286 NULL);
1287 if (aq_ret) {
1288 int aq_err = pf->hw.aq.asq_last_status;
1289
1290 dev_err(&pf->pdev->dev,
1291 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n",
1292 vf->vf_id,
1293 ERR_PTR(aq_ret),
1294 i40e_aq_str(&pf->hw, aq_err));
1295
1296 return aq_ret;
1297 }
1298
1299 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid,
1300 unicast_enable,
1301 NULL, true);
1302
1303 if (aq_ret) {
1304 int aq_err = pf->hw.aq.asq_last_status;
1305
1306 dev_err(&pf->pdev->dev,
1307 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n",
1308 vf->vf_id,
1309 ERR_PTR(aq_ret),
1310 i40e_aq_str(&pf->hw, aq_err));
1311 }
1312
1313 return aq_ret;
1314 }
1315
1316 for (i = 0; i < num_vlans; i++) {
1317 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid,
1318 multi_enable,
1319 vl[i], NULL);
1320 if (aq_ret) {
1321 int aq_err = pf->hw.aq.asq_last_status;
1322
1323 dev_err(&pf->pdev->dev,
1324 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n",
1325 vf->vf_id,
1326 ERR_PTR(aq_ret),
1327 i40e_aq_str(&pf->hw, aq_err));
1328
1329 if (!aq_tmp)
1330 aq_tmp = aq_ret;
1331 }
1332
1333 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid,
1334 unicast_enable,
1335 vl[i], NULL);
1336 if (aq_ret) {
1337 int aq_err = pf->hw.aq.asq_last_status;
1338
1339 dev_err(&pf->pdev->dev,
1340 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n",
1341 vf->vf_id,
1342 ERR_PTR(aq_ret),
1343 i40e_aq_str(&pf->hw, aq_err));
1344
1345 if (!aq_tmp)
1346 aq_tmp = aq_ret;
1347 }
1348 }
1349
1350 if (aq_tmp)
1351 aq_ret = aq_tmp;
1352
1353 return aq_ret;
1354}
1355
1356/**
1357 * i40e_config_vf_promiscuous_mode
1358 * @vf: pointer to the VF info
1359 * @vsi_id: VSI id
1360 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable
1361 * @alluni: set MAC L2 layer unicast promiscuous enable/disable
1362 *
1363 * Called from the VF to configure the promiscuous mode of
1364 * VF vsis and from the VF reset path to reset promiscuous mode.
1365 **/
1366static int i40e_config_vf_promiscuous_mode(struct i40e_vf *vf,
1367 u16 vsi_id,
1368 bool allmulti,
1369 bool alluni)
1370{
1371 struct i40e_pf *pf = vf->pf;
1372 struct i40e_vsi *vsi;
1373 int aq_ret = 0;
1374 u16 num_vlans;
1375 s16 *vl;
1376
1377 vsi = i40e_find_vsi_from_id(pf, vsi_id);
1378 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi)
1379 return -EINVAL;
1380
1381 if (vf->port_vlan_id) {
1382 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti,
1383 alluni, &vf->port_vlan_id, 1);
1384 return aq_ret;
1385 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1386 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl);
1387
1388 if (!vl)
1389 return -ENOMEM;
1390
1391 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
1392 vl, num_vlans);
1393 kfree(vl);
1394 return aq_ret;
1395 }
1396
1397 /* no VLANs to set on, set on VSI */
1398 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
1399 NULL, 0);
1400 return aq_ret;
1401}
1402
1403/**
1404 * i40e_sync_vfr_reset
1405 * @hw: pointer to hw struct
1406 * @vf_id: VF identifier
1407 *
1408 * Before trigger hardware reset, we need to know if no other process has
1409 * reserved the hardware for any reset operations. This check is done by
1410 * examining the status of the RSTAT1 register used to signal the reset.
1411 **/
1412static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id)
1413{
1414 u32 reg;
1415 int i;
1416
1417 for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) {
1418 reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) &
1419 I40E_VFINT_ICR0_ADMINQ_MASK;
1420 if (reg)
1421 return 0;
1422
1423 usleep_range(100, 200);
1424 }
1425
1426 return -EAGAIN;
1427}
1428
1429/**
1430 * i40e_trigger_vf_reset
1431 * @vf: pointer to the VF structure
1432 * @flr: VFLR was issued or not
1433 *
1434 * Trigger hardware to start a reset for a particular VF. Expects the caller
1435 * to wait the proper amount of time to allow hardware to reset the VF before
1436 * it cleans up and restores VF functionality.
1437 **/
1438static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
1439{
1440 struct i40e_pf *pf = vf->pf;
1441 struct i40e_hw *hw = &pf->hw;
1442 u32 reg, reg_idx, bit_idx;
1443 bool vf_active;
1444 u32 radq;
1445
1446 /* warn the VF */
1447 vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1448
1449 /* Disable VF's configuration API during reset. The flag is re-enabled
1450 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.
1451 * It's normally disabled in i40e_free_vf_res(), but it's safer
1452 * to do it earlier to give some time to finish to any VF config
1453 * functions that may still be running at this point.
1454 */
1455 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1456
1457 /* In the case of a VFLR, the HW has already reset the VF and we
1458 * just need to clean up, so don't hit the VFRTRIG register.
1459 */
1460 if (!flr) {
1461 /* Sync VFR reset before trigger next one */
1462 radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) &
1463 I40E_VFINT_ICR0_ADMINQ_MASK;
1464 if (vf_active && !radq)
1465 /* waiting for finish reset by virtual driver */
1466 if (i40e_sync_vfr_reset(hw, vf->vf_id))
1467 dev_info(&pf->pdev->dev,
1468 "Reset VF %d never finished\n",
1469 vf->vf_id);
1470
1471 /* Reset VF using VPGEN_VFRTRIG reg. It is also setting
1472 * in progress state in rstat1 register.
1473 */
1474 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1475 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1476 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1477 i40e_flush(hw);
1478 }
1479 /* clear the VFLR bit in GLGEN_VFLRSTAT */
1480 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
1481 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
1482 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1483 i40e_flush(hw);
1484
1485 if (i40e_quiesce_vf_pci(vf))
1486 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
1487 vf->vf_id);
1488}
1489
1490/**
1491 * i40e_cleanup_reset_vf
1492 * @vf: pointer to the VF structure
1493 *
1494 * Cleanup a VF after the hardware reset is finished. Expects the caller to
1495 * have verified whether the reset is finished properly, and ensure the
1496 * minimum amount of wait time has passed.
1497 **/
1498static void i40e_cleanup_reset_vf(struct i40e_vf *vf)
1499{
1500 struct i40e_pf *pf = vf->pf;
1501 struct i40e_hw *hw = &pf->hw;
1502 u32 reg;
1503
1504 /* disable promisc modes in case they were enabled */
1505 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false);
1506
1507 /* free VF resources to begin resetting the VSI state */
1508 i40e_free_vf_res(vf);
1509
1510 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg.
1511 * By doing this we allow HW to access VF memory at any point. If we
1512 * did it any sooner, HW could access memory while it was being freed
1513 * in i40e_free_vf_res(), causing an IOMMU fault.
1514 *
1515 * On the other hand, this needs to be done ASAP, because the VF driver
1516 * is waiting for this to happen and may report a timeout. It's
1517 * harmless, but it gets logged into Guest OS kernel log, so best avoid
1518 * it.
1519 */
1520 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1521 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1522 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1523
1524 /* reallocate VF resources to finish resetting the VSI state */
1525 if (!i40e_alloc_vf_res(vf)) {
1526 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1527 i40e_enable_vf_mappings(vf);
1528 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1529 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1530 /* Do not notify the client during VF init */
1531 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE,
1532 &vf->vf_states))
1533 i40e_notify_client_of_vf_reset(pf, abs_vf_id);
1534 vf->num_vlan = 0;
1535 }
1536
1537 /* Tell the VF driver the reset is done. This needs to be done only
1538 * after VF has been fully initialized, because the VF driver may
1539 * request resources immediately after setting this flag.
1540 */
1541 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
1542}
1543
1544/**
1545 * i40e_reset_vf
1546 * @vf: pointer to the VF structure
1547 * @flr: VFLR was issued or not
1548 *
1549 * Returns true if the VF is in reset, resets successfully, or resets
1550 * are disabled and false otherwise.
1551 **/
1552bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
1553{
1554 struct i40e_pf *pf = vf->pf;
1555 struct i40e_hw *hw = &pf->hw;
1556 bool rsd = false;
1557 u32 reg;
1558 int i;
1559
1560 if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state))
1561 return true;
1562
1563 /* Bail out if VFs are disabled. */
1564 if (test_bit(__I40E_VF_DISABLE, pf->state))
1565 return true;
1566
1567 /* If VF is being reset already we don't need to continue. */
1568 if (test_and_set_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1569 return true;
1570
1571 i40e_trigger_vf_reset(vf, flr);
1572
1573 /* poll VPGEN_VFRSTAT reg to make sure
1574 * that reset is complete
1575 */
1576 for (i = 0; i < 10; i++) {
1577 /* VF reset requires driver to first reset the VF and then
1578 * poll the status register to make sure that the reset
1579 * completed successfully. Due to internal HW FIFO flushes,
1580 * we must wait 10ms before the register will be valid.
1581 */
1582 usleep_range(10000, 20000);
1583 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1584 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
1585 rsd = true;
1586 break;
1587 }
1588 }
1589
1590 if (flr)
1591 usleep_range(10000, 20000);
1592
1593 if (!rsd)
1594 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1595 vf->vf_id);
1596 usleep_range(10000, 20000);
1597
1598 /* On initial reset, we don't have any queues to disable */
1599 if (vf->lan_vsi_idx != 0)
1600 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1601
1602 i40e_cleanup_reset_vf(vf);
1603
1604 i40e_flush(hw);
1605 usleep_range(20000, 40000);
1606 clear_bit(I40E_VF_STATE_RESETTING, &vf->vf_states);
1607
1608 return true;
1609}
1610
1611/**
1612 * i40e_reset_all_vfs
1613 * @pf: pointer to the PF structure
1614 * @flr: VFLR was issued or not
1615 *
1616 * Reset all allocated VFs in one go. First, tell the hardware to reset each
1617 * VF, then do all the waiting in one chunk, and finally finish restoring each
1618 * VF after the wait. This is useful during PF routines which need to reset
1619 * all VFs, as otherwise it must perform these resets in a serialized fashion.
1620 *
1621 * Returns true if any VFs were reset, and false otherwise.
1622 **/
1623bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
1624{
1625 struct i40e_hw *hw = &pf->hw;
1626 struct i40e_vf *vf;
1627 u32 reg;
1628 int i;
1629
1630 /* If we don't have any VFs, then there is nothing to reset */
1631 if (!pf->num_alloc_vfs)
1632 return false;
1633
1634 /* If VFs have been disabled, there is no need to reset */
1635 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1636 return false;
1637
1638 /* Begin reset on all VFs at once */
1639 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {
1640 /* If VF is being reset no need to trigger reset again */
1641 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1642 i40e_trigger_vf_reset(vf, flr);
1643 }
1644
1645 /* HW requires some time to make sure it can flush the FIFO for a VF
1646 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
1647 * sequence to make sure that it has completed. We'll keep track of
1648 * the VFs using a simple iterator that increments once that VF has
1649 * finished resetting.
1650 */
1651 for (i = 0, vf = &pf->vf[0]; i < 10 && vf < &pf->vf[pf->num_alloc_vfs]; ++i) {
1652 usleep_range(10000, 20000);
1653
1654 /* Check each VF in sequence, beginning with the VF to fail
1655 * the previous check.
1656 */
1657 while (vf < &pf->vf[pf->num_alloc_vfs]) {
1658 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) {
1659 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1660 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))
1661 break;
1662 }
1663
1664 /* If the current VF has finished resetting, move on
1665 * to the next VF in sequence.
1666 */
1667 ++vf;
1668 }
1669 }
1670
1671 if (flr)
1672 usleep_range(10000, 20000);
1673
1674 /* Display a warning if at least one VF didn't manage to reset in
1675 * time, but continue on with the operation.
1676 */
1677 if (vf < &pf->vf[pf->num_alloc_vfs])
1678 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1679 vf->vf_id);
1680 usleep_range(10000, 20000);
1681
1682 /* Begin disabling all the rings associated with VFs, but do not wait
1683 * between each VF.
1684 */
1685 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {
1686 /* On initial reset, we don't have any queues to disable */
1687 if (vf->lan_vsi_idx == 0)
1688 continue;
1689
1690 /* If VF is reset in another thread just continue */
1691 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1692 continue;
1693
1694 i40e_vsi_stop_rings_no_wait(pf->vsi[vf->lan_vsi_idx]);
1695 }
1696
1697 /* Now that we've notified HW to disable all of the VF rings, wait
1698 * until they finish.
1699 */
1700 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {
1701 /* On initial reset, we don't have any queues to disable */
1702 if (vf->lan_vsi_idx == 0)
1703 continue;
1704
1705 /* If VF is reset in another thread just continue */
1706 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1707 continue;
1708
1709 i40e_vsi_wait_queues_disabled(pf->vsi[vf->lan_vsi_idx]);
1710 }
1711
1712 /* Hw may need up to 50ms to finish disabling the RX queues. We
1713 * minimize the wait by delaying only once for all VFs.
1714 */
1715 mdelay(50);
1716
1717 /* Finish the reset on each VF */
1718 for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {
1719 /* If VF is reset in another thread just continue */
1720 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1721 continue;
1722
1723 i40e_cleanup_reset_vf(vf);
1724 }
1725
1726 i40e_flush(hw);
1727 usleep_range(20000, 40000);
1728 clear_bit(__I40E_VF_DISABLE, pf->state);
1729
1730 return true;
1731}
1732
1733/**
1734 * i40e_free_vfs
1735 * @pf: pointer to the PF structure
1736 *
1737 * free VF resources
1738 **/
1739void i40e_free_vfs(struct i40e_pf *pf)
1740{
1741 struct i40e_hw *hw = &pf->hw;
1742 u32 reg_idx, bit_idx;
1743 int i, tmp, vf_id;
1744
1745 if (!pf->vf)
1746 return;
1747
1748 set_bit(__I40E_VFS_RELEASING, pf->state);
1749 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1750 usleep_range(1000, 2000);
1751
1752 i40e_notify_client_of_vf_enable(pf, 0);
1753
1754 /* Disable IOV before freeing resources. This lets any VF drivers
1755 * running in the host get themselves cleaned up before we yank
1756 * the carpet out from underneath their feet.
1757 */
1758 if (!pci_vfs_assigned(pf->pdev))
1759 pci_disable_sriov(pf->pdev);
1760 else
1761 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1762
1763 /* Amortize wait time by stopping all VFs at the same time */
1764 for (i = 0; i < pf->num_alloc_vfs; i++) {
1765 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1766 continue;
1767
1768 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]);
1769 }
1770
1771 for (i = 0; i < pf->num_alloc_vfs; i++) {
1772 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1773 continue;
1774
1775 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]);
1776 }
1777
1778 /* free up VF resources */
1779 tmp = pf->num_alloc_vfs;
1780 pf->num_alloc_vfs = 0;
1781 for (i = 0; i < tmp; i++) {
1782 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1783 i40e_free_vf_res(&pf->vf[i]);
1784 /* disable qp mappings */
1785 i40e_disable_vf_mappings(&pf->vf[i]);
1786 }
1787
1788 kfree(pf->vf);
1789 pf->vf = NULL;
1790
1791 /* This check is for when the driver is unloaded while VFs are
1792 * assigned. Setting the number of VFs to 0 through sysfs is caught
1793 * before this function ever gets called.
1794 */
1795 if (!pci_vfs_assigned(pf->pdev)) {
1796 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1797 * work correctly when SR-IOV gets re-enabled.
1798 */
1799 for (vf_id = 0; vf_id < tmp; vf_id++) {
1800 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1801 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1802 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1803 }
1804 }
1805 clear_bit(__I40E_VF_DISABLE, pf->state);
1806 clear_bit(__I40E_VFS_RELEASING, pf->state);
1807}
1808
1809#ifdef CONFIG_PCI_IOV
1810/**
1811 * i40e_alloc_vfs
1812 * @pf: pointer to the PF structure
1813 * @num_alloc_vfs: number of VFs to allocate
1814 *
1815 * allocate VF resources
1816 **/
1817int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1818{
1819 struct i40e_vf *vfs;
1820 int i, ret = 0;
1821
1822 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1823 i40e_irq_dynamic_disable_icr0(pf);
1824
1825 /* Check to see if we're just allocating resources for extant VFs */
1826 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1827 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1828 if (ret) {
1829 clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
1830 pf->num_alloc_vfs = 0;
1831 goto err_iov;
1832 }
1833 }
1834 /* allocate memory */
1835 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1836 if (!vfs) {
1837 ret = -ENOMEM;
1838 goto err_alloc;
1839 }
1840 pf->vf = vfs;
1841
1842 /* apply default profile */
1843 for (i = 0; i < num_alloc_vfs; i++) {
1844 vfs[i].pf = pf;
1845 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1846 vfs[i].vf_id = i;
1847
1848 /* assign default capabilities */
1849 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1850 vfs[i].spoofchk = true;
1851
1852 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states);
1853
1854 }
1855 pf->num_alloc_vfs = num_alloc_vfs;
1856
1857 /* VF resources get allocated during reset */
1858 i40e_reset_all_vfs(pf, false);
1859
1860 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1861
1862err_alloc:
1863 if (ret)
1864 i40e_free_vfs(pf);
1865err_iov:
1866 /* Re-enable interrupt 0. */
1867 i40e_irq_dynamic_enable_icr0(pf);
1868 return ret;
1869}
1870
1871#endif
1872/**
1873 * i40e_pci_sriov_enable
1874 * @pdev: pointer to a pci_dev structure
1875 * @num_vfs: number of VFs to allocate
1876 *
1877 * Enable or change the number of VFs
1878 **/
1879static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1880{
1881#ifdef CONFIG_PCI_IOV
1882 struct i40e_pf *pf = pci_get_drvdata(pdev);
1883 int pre_existing_vfs = pci_num_vf(pdev);
1884 int err = 0;
1885
1886 if (test_bit(__I40E_TESTING, pf->state)) {
1887 dev_warn(&pdev->dev,
1888 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1889 err = -EPERM;
1890 goto err_out;
1891 }
1892
1893 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1894 i40e_free_vfs(pf);
1895 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1896 goto out;
1897
1898 if (num_vfs > pf->num_req_vfs) {
1899 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1900 num_vfs, pf->num_req_vfs);
1901 err = -EPERM;
1902 goto err_out;
1903 }
1904
1905 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1906 err = i40e_alloc_vfs(pf, num_vfs);
1907 if (err) {
1908 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1909 goto err_out;
1910 }
1911
1912out:
1913 return num_vfs;
1914
1915err_out:
1916 return err;
1917#endif
1918 return 0;
1919}
1920
1921/**
1922 * i40e_pci_sriov_configure
1923 * @pdev: pointer to a pci_dev structure
1924 * @num_vfs: number of VFs to allocate
1925 *
1926 * Enable or change the number of VFs. Called when the user updates the number
1927 * of VFs in sysfs.
1928 **/
1929int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1930{
1931 struct i40e_pf *pf = pci_get_drvdata(pdev);
1932 int ret = 0;
1933
1934 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
1935 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n");
1936 return -EAGAIN;
1937 }
1938
1939 if (num_vfs) {
1940 if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) {
1941 set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
1942 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
1943 }
1944 ret = i40e_pci_sriov_enable(pdev, num_vfs);
1945 goto sriov_configure_out;
1946 }
1947
1948 if (!pci_vfs_assigned(pf->pdev)) {
1949 i40e_free_vfs(pf);
1950 clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
1951 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
1952 } else {
1953 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1954 ret = -EINVAL;
1955 goto sriov_configure_out;
1956 }
1957sriov_configure_out:
1958 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
1959 return ret;
1960}
1961
1962/***********************virtual channel routines******************/
1963
1964/**
1965 * i40e_vc_send_msg_to_vf
1966 * @vf: pointer to the VF info
1967 * @v_opcode: virtual channel opcode
1968 * @v_retval: virtual channel return value
1969 * @msg: pointer to the msg buffer
1970 * @msglen: msg length
1971 *
1972 * send msg to VF
1973 **/
1974static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1975 u32 v_retval, u8 *msg, u16 msglen)
1976{
1977 struct i40e_pf *pf;
1978 struct i40e_hw *hw;
1979 int abs_vf_id;
1980 int aq_ret;
1981
1982 /* validate the request */
1983 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1984 return -EINVAL;
1985
1986 pf = vf->pf;
1987 hw = &pf->hw;
1988 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1989
1990 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1991 msg, msglen, NULL);
1992 if (aq_ret) {
1993 dev_info(&pf->pdev->dev,
1994 "Unable to send the message to VF %d aq_err %d\n",
1995 vf->vf_id, pf->hw.aq.asq_last_status);
1996 return -EIO;
1997 }
1998
1999 return 0;
2000}
2001
2002/**
2003 * i40e_vc_send_resp_to_vf
2004 * @vf: pointer to the VF info
2005 * @opcode: operation code
2006 * @retval: return value
2007 *
2008 * send resp msg to VF
2009 **/
2010static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
2011 enum virtchnl_ops opcode,
2012 int retval)
2013{
2014 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
2015}
2016
2017/**
2018 * i40e_sync_vf_state
2019 * @vf: pointer to the VF info
2020 * @state: VF state
2021 *
2022 * Called from a VF message to synchronize the service with a potential
2023 * VF reset state
2024 **/
2025static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state)
2026{
2027 int i;
2028
2029 /* When handling some messages, it needs VF state to be set.
2030 * It is possible that this flag is cleared during VF reset,
2031 * so there is a need to wait until the end of the reset to
2032 * handle the request message correctly.
2033 */
2034 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) {
2035 if (test_bit(state, &vf->vf_states))
2036 return true;
2037 usleep_range(10000, 20000);
2038 }
2039
2040 return test_bit(state, &vf->vf_states);
2041}
2042
2043/**
2044 * i40e_vc_get_version_msg
2045 * @vf: pointer to the VF info
2046 * @msg: pointer to the msg buffer
2047 *
2048 * called from the VF to request the API version used by the PF
2049 **/
2050static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
2051{
2052 struct virtchnl_version_info info = {
2053 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
2054 };
2055
2056 vf->vf_ver = *(struct virtchnl_version_info *)msg;
2057 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
2058 if (VF_IS_V10(&vf->vf_ver))
2059 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
2060 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
2061 0, (u8 *)&info,
2062 sizeof(struct virtchnl_version_info));
2063}
2064
2065/**
2066 * i40e_del_qch - delete all the additional VSIs created as a part of ADq
2067 * @vf: pointer to VF structure
2068 **/
2069static void i40e_del_qch(struct i40e_vf *vf)
2070{
2071 struct i40e_pf *pf = vf->pf;
2072 int i;
2073
2074 /* first element in the array belongs to primary VF VSI and we shouldn't
2075 * delete it. We should however delete the rest of the VSIs created
2076 */
2077 for (i = 1; i < vf->num_tc; i++) {
2078 if (vf->ch[i].vsi_idx) {
2079 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]);
2080 vf->ch[i].vsi_idx = 0;
2081 vf->ch[i].vsi_id = 0;
2082 }
2083 }
2084}
2085
2086/**
2087 * i40e_vc_get_max_frame_size
2088 * @vf: pointer to the VF
2089 *
2090 * Max frame size is determined based on the current port's max frame size and
2091 * whether a port VLAN is configured on this VF. The VF is not aware whether
2092 * it's in a port VLAN so the PF needs to account for this in max frame size
2093 * checks and sending the max frame size to the VF.
2094 **/
2095static u16 i40e_vc_get_max_frame_size(struct i40e_vf *vf)
2096{
2097 u16 max_frame_size = vf->pf->hw.phy.link_info.max_frame_size;
2098
2099 if (vf->port_vlan_id)
2100 max_frame_size -= VLAN_HLEN;
2101
2102 return max_frame_size;
2103}
2104
2105/**
2106 * i40e_vc_get_vf_resources_msg
2107 * @vf: pointer to the VF info
2108 * @msg: pointer to the msg buffer
2109 *
2110 * called from the VF to request its resources
2111 **/
2112static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
2113{
2114 struct virtchnl_vf_resource *vfres = NULL;
2115 struct i40e_pf *pf = vf->pf;
2116 struct i40e_vsi *vsi;
2117 int num_vsis = 1;
2118 int aq_ret = 0;
2119 size_t len = 0;
2120 int ret;
2121
2122 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) {
2123 aq_ret = -EINVAL;
2124 goto err;
2125 }
2126
2127 len = virtchnl_struct_size(vfres, vsi_res, num_vsis);
2128 vfres = kzalloc(len, GFP_KERNEL);
2129 if (!vfres) {
2130 aq_ret = -ENOMEM;
2131 len = 0;
2132 goto err;
2133 }
2134 if (VF_IS_V11(&vf->vf_ver))
2135 vf->driver_caps = *(u32 *)msg;
2136 else
2137 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
2138 VIRTCHNL_VF_OFFLOAD_RSS_REG |
2139 VIRTCHNL_VF_OFFLOAD_VLAN;
2140
2141 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
2142 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
2143 vsi = pf->vsi[vf->lan_vsi_idx];
2144 if (!vsi->info.pvid)
2145 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
2146
2147 if (i40e_vf_client_capable(pf, vf->vf_id) &&
2148 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RDMA)) {
2149 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RDMA;
2150 set_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states);
2151 } else {
2152 clear_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states);
2153 }
2154
2155 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
2156 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
2157 } else {
2158 if (test_bit(I40E_HW_CAP_RSS_AQ, pf->hw.caps) &&
2159 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
2160 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
2161 else
2162 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
2163 }
2164
2165 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) {
2166 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
2167 vfres->vf_cap_flags |=
2168 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
2169 }
2170
2171 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
2172 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
2173
2174 if (test_bit(I40E_HW_CAP_OUTER_UDP_CSUM, pf->hw.caps) &&
2175 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
2176 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
2177
2178 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
2179 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
2180 dev_err(&pf->pdev->dev,
2181 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
2182 vf->vf_id);
2183 aq_ret = -EINVAL;
2184 goto err;
2185 }
2186 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
2187 }
2188
2189 if (test_bit(I40E_HW_CAP_WB_ON_ITR, pf->hw.caps)) {
2190 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
2191 vfres->vf_cap_flags |=
2192 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
2193 }
2194
2195 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
2196 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
2197
2198 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)
2199 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ;
2200
2201 vfres->num_vsis = num_vsis;
2202 vfres->num_queue_pairs = vf->num_queue_pairs;
2203 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
2204 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
2205 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
2206 vfres->max_mtu = i40e_vc_get_max_frame_size(vf);
2207
2208 if (vf->lan_vsi_idx) {
2209 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
2210 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
2211 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
2212 /* VFs only use TC 0 */
2213 vfres->vsi_res[0].qset_handle
2214 = le16_to_cpu(vsi->info.qs_handle[0]);
2215 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) && !vf->pf_set_mac) {
2216 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
2217 eth_zero_addr(vf->default_lan_addr.addr);
2218 }
2219 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
2220 vf->default_lan_addr.addr);
2221 }
2222 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
2223
2224err:
2225 /* send the response back to the VF */
2226 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES,
2227 aq_ret, (u8 *)vfres, len);
2228
2229 kfree(vfres);
2230 return ret;
2231}
2232
2233/**
2234 * i40e_vc_config_promiscuous_mode_msg
2235 * @vf: pointer to the VF info
2236 * @msg: pointer to the msg buffer
2237 *
2238 * called from the VF to configure the promiscuous mode of
2239 * VF vsis
2240 **/
2241static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg)
2242{
2243 struct virtchnl_promisc_info *info =
2244 (struct virtchnl_promisc_info *)msg;
2245 struct i40e_pf *pf = vf->pf;
2246 bool allmulti = false;
2247 bool alluni = false;
2248 int aq_ret = 0;
2249
2250 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2251 aq_ret = -EINVAL;
2252 goto err_out;
2253 }
2254 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2255 dev_err(&pf->pdev->dev,
2256 "Unprivileged VF %d is attempting to configure promiscuous mode\n",
2257 vf->vf_id);
2258
2259 /* Lie to the VF on purpose, because this is an error we can
2260 * ignore. Unprivileged VF is not a virtual channel error.
2261 */
2262 aq_ret = 0;
2263 goto err_out;
2264 }
2265
2266 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) {
2267 aq_ret = -EINVAL;
2268 goto err_out;
2269 }
2270
2271 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
2272 aq_ret = -EINVAL;
2273 goto err_out;
2274 }
2275
2276 /* Multicast promiscuous handling*/
2277 if (info->flags & FLAG_VF_MULTICAST_PROMISC)
2278 allmulti = true;
2279
2280 if (info->flags & FLAG_VF_UNICAST_PROMISC)
2281 alluni = true;
2282 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti,
2283 alluni);
2284 if (aq_ret)
2285 goto err_out;
2286
2287 if (allmulti) {
2288 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC,
2289 &vf->vf_states))
2290 dev_info(&pf->pdev->dev,
2291 "VF %d successfully set multicast promiscuous mode\n",
2292 vf->vf_id);
2293 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC,
2294 &vf->vf_states))
2295 dev_info(&pf->pdev->dev,
2296 "VF %d successfully unset multicast promiscuous mode\n",
2297 vf->vf_id);
2298
2299 if (alluni) {
2300 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC,
2301 &vf->vf_states))
2302 dev_info(&pf->pdev->dev,
2303 "VF %d successfully set unicast promiscuous mode\n",
2304 vf->vf_id);
2305 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC,
2306 &vf->vf_states))
2307 dev_info(&pf->pdev->dev,
2308 "VF %d successfully unset unicast promiscuous mode\n",
2309 vf->vf_id);
2310
2311err_out:
2312 /* send the response to the VF */
2313 return i40e_vc_send_resp_to_vf(vf,
2314 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
2315 aq_ret);
2316}
2317
2318/**
2319 * i40e_vc_config_queues_msg
2320 * @vf: pointer to the VF info
2321 * @msg: pointer to the msg buffer
2322 *
2323 * called from the VF to configure the rx/tx
2324 * queues
2325 **/
2326static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
2327{
2328 struct virtchnl_vsi_queue_config_info *qci =
2329 (struct virtchnl_vsi_queue_config_info *)msg;
2330 struct virtchnl_queue_pair_info *qpi;
2331 u16 vsi_id, vsi_queue_id = 0;
2332 struct i40e_pf *pf = vf->pf;
2333 int i, j = 0, idx = 0;
2334 struct i40e_vsi *vsi;
2335 u16 num_qps_all = 0;
2336 int aq_ret = 0;
2337
2338 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2339 aq_ret = -EINVAL;
2340 goto error_param;
2341 }
2342
2343 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) {
2344 aq_ret = -EINVAL;
2345 goto error_param;
2346 }
2347
2348 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) {
2349 aq_ret = -EINVAL;
2350 goto error_param;
2351 }
2352
2353 if (vf->adq_enabled) {
2354 for (i = 0; i < vf->num_tc; i++)
2355 num_qps_all += vf->ch[i].num_qps;
2356 if (num_qps_all != qci->num_queue_pairs) {
2357 aq_ret = -EINVAL;
2358 goto error_param;
2359 }
2360 }
2361
2362 vsi_id = qci->vsi_id;
2363
2364 for (i = 0; i < qci->num_queue_pairs; i++) {
2365 qpi = &qci->qpair[i];
2366
2367 if (!vf->adq_enabled) {
2368 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
2369 qpi->txq.queue_id)) {
2370 aq_ret = -EINVAL;
2371 goto error_param;
2372 }
2373
2374 vsi_queue_id = qpi->txq.queue_id;
2375
2376 if (qpi->txq.vsi_id != qci->vsi_id ||
2377 qpi->rxq.vsi_id != qci->vsi_id ||
2378 qpi->rxq.queue_id != vsi_queue_id) {
2379 aq_ret = -EINVAL;
2380 goto error_param;
2381 }
2382 }
2383
2384 if (vf->adq_enabled) {
2385 if (idx >= ARRAY_SIZE(vf->ch)) {
2386 aq_ret = -ENODEV;
2387 goto error_param;
2388 }
2389 vsi_id = vf->ch[idx].vsi_id;
2390 }
2391
2392 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
2393 &qpi->rxq) ||
2394 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
2395 &qpi->txq)) {
2396 aq_ret = -EINVAL;
2397 goto error_param;
2398 }
2399
2400 /* For ADq there can be up to 4 VSIs with max 4 queues each.
2401 * VF does not know about these additional VSIs and all
2402 * it cares is about its own queues. PF configures these queues
2403 * to its appropriate VSIs based on TC mapping
2404 */
2405 if (vf->adq_enabled) {
2406 if (idx >= ARRAY_SIZE(vf->ch)) {
2407 aq_ret = -ENODEV;
2408 goto error_param;
2409 }
2410 if (j == (vf->ch[idx].num_qps - 1)) {
2411 idx++;
2412 j = 0; /* resetting the queue count */
2413 vsi_queue_id = 0;
2414 } else {
2415 j++;
2416 vsi_queue_id++;
2417 }
2418 }
2419 }
2420 /* set vsi num_queue_pairs in use to num configured by VF */
2421 if (!vf->adq_enabled) {
2422 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs =
2423 qci->num_queue_pairs;
2424 } else {
2425 for (i = 0; i < vf->num_tc; i++) {
2426 vsi = pf->vsi[vf->ch[i].vsi_idx];
2427 vsi->num_queue_pairs = vf->ch[i].num_qps;
2428
2429 if (i40e_update_adq_vsi_queues(vsi, i)) {
2430 aq_ret = -EIO;
2431 goto error_param;
2432 }
2433 }
2434 }
2435
2436error_param:
2437 /* send the response to the VF */
2438 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
2439 aq_ret);
2440}
2441
2442/**
2443 * i40e_validate_queue_map - check queue map is valid
2444 * @vf: the VF structure pointer
2445 * @vsi_id: vsi id
2446 * @queuemap: Tx or Rx queue map
2447 *
2448 * check if Tx or Rx queue map is valid
2449 **/
2450static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id,
2451 unsigned long queuemap)
2452{
2453 u16 vsi_queue_id, queue_id;
2454
2455 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) {
2456 if (vf->adq_enabled) {
2457 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id;
2458 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF);
2459 } else {
2460 queue_id = vsi_queue_id;
2461 }
2462
2463 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id))
2464 return -EINVAL;
2465 }
2466
2467 return 0;
2468}
2469
2470/**
2471 * i40e_vc_config_irq_map_msg
2472 * @vf: pointer to the VF info
2473 * @msg: pointer to the msg buffer
2474 *
2475 * called from the VF to configure the irq to
2476 * queue map
2477 **/
2478static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg)
2479{
2480 struct virtchnl_irq_map_info *irqmap_info =
2481 (struct virtchnl_irq_map_info *)msg;
2482 struct virtchnl_vector_map *map;
2483 int aq_ret = 0;
2484 u16 vsi_id;
2485 int i;
2486
2487 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2488 aq_ret = -EINVAL;
2489 goto error_param;
2490 }
2491
2492 if (irqmap_info->num_vectors >
2493 vf->pf->hw.func_caps.num_msix_vectors_vf) {
2494 aq_ret = -EINVAL;
2495 goto error_param;
2496 }
2497
2498 for (i = 0; i < irqmap_info->num_vectors; i++) {
2499 map = &irqmap_info->vecmap[i];
2500 /* validate msg params */
2501 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) ||
2502 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) {
2503 aq_ret = -EINVAL;
2504 goto error_param;
2505 }
2506 vsi_id = map->vsi_id;
2507
2508 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) {
2509 aq_ret = -EINVAL;
2510 goto error_param;
2511 }
2512
2513 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) {
2514 aq_ret = -EINVAL;
2515 goto error_param;
2516 }
2517
2518 i40e_config_irq_link_list(vf, vsi_id, map);
2519 }
2520error_param:
2521 /* send the response to the VF */
2522 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP,
2523 aq_ret);
2524}
2525
2526/**
2527 * i40e_ctrl_vf_tx_rings
2528 * @vsi: the SRIOV VSI being configured
2529 * @q_map: bit map of the queues to be enabled
2530 * @enable: start or stop the queue
2531 **/
2532static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2533 bool enable)
2534{
2535 struct i40e_pf *pf = vsi->back;
2536 int ret = 0;
2537 u16 q_id;
2538
2539 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2540 ret = i40e_control_wait_tx_q(vsi->seid, pf,
2541 vsi->base_queue + q_id,
2542 false /*is xdp*/, enable);
2543 if (ret)
2544 break;
2545 }
2546 return ret;
2547}
2548
2549/**
2550 * i40e_ctrl_vf_rx_rings
2551 * @vsi: the SRIOV VSI being configured
2552 * @q_map: bit map of the queues to be enabled
2553 * @enable: start or stop the queue
2554 **/
2555static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2556 bool enable)
2557{
2558 struct i40e_pf *pf = vsi->back;
2559 int ret = 0;
2560 u16 q_id;
2561
2562 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2563 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id,
2564 enable);
2565 if (ret)
2566 break;
2567 }
2568 return ret;
2569}
2570
2571/**
2572 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL
2573 * @vqs: virtchnl_queue_select structure containing bitmaps to validate
2574 *
2575 * Returns true if validation was successful, else false.
2576 */
2577static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
2578{
2579 if ((!vqs->rx_queues && !vqs->tx_queues) ||
2580 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) ||
2581 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES))
2582 return false;
2583
2584 return true;
2585}
2586
2587/**
2588 * i40e_vc_enable_queues_msg
2589 * @vf: pointer to the VF info
2590 * @msg: pointer to the msg buffer
2591 *
2592 * called from the VF to enable all or specific queue(s)
2593 **/
2594static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg)
2595{
2596 struct virtchnl_queue_select *vqs =
2597 (struct virtchnl_queue_select *)msg;
2598 struct i40e_pf *pf = vf->pf;
2599 int aq_ret = 0;
2600 int i;
2601
2602 if (vf->is_disabled_from_host) {
2603 aq_ret = -EPERM;
2604 dev_info(&pf->pdev->dev,
2605 "Admin has disabled VF %d, will not enable queues\n",
2606 vf->vf_id);
2607 goto error_param;
2608 }
2609
2610 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2611 aq_ret = -EINVAL;
2612 goto error_param;
2613 }
2614
2615 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2616 aq_ret = -EINVAL;
2617 goto error_param;
2618 }
2619
2620 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2621 aq_ret = -EINVAL;
2622 goto error_param;
2623 }
2624
2625 /* Use the queue bit map sent by the VF */
2626 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2627 true)) {
2628 aq_ret = -EIO;
2629 goto error_param;
2630 }
2631 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2632 true)) {
2633 aq_ret = -EIO;
2634 goto error_param;
2635 }
2636
2637 /* need to start the rings for additional ADq VSI's as well */
2638 if (vf->adq_enabled) {
2639 /* zero belongs to LAN VSI */
2640 for (i = 1; i < vf->num_tc; i++) {
2641 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx]))
2642 aq_ret = -EIO;
2643 }
2644 }
2645
2646error_param:
2647 /* send the response to the VF */
2648 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES,
2649 aq_ret);
2650}
2651
2652/**
2653 * i40e_vc_disable_queues_msg
2654 * @vf: pointer to the VF info
2655 * @msg: pointer to the msg buffer
2656 *
2657 * called from the VF to disable all or specific
2658 * queue(s)
2659 **/
2660static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg)
2661{
2662 struct virtchnl_queue_select *vqs =
2663 (struct virtchnl_queue_select *)msg;
2664 struct i40e_pf *pf = vf->pf;
2665 int aq_ret = 0;
2666
2667 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2668 aq_ret = -EINVAL;
2669 goto error_param;
2670 }
2671
2672 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2673 aq_ret = -EINVAL;
2674 goto error_param;
2675 }
2676
2677 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2678 aq_ret = -EINVAL;
2679 goto error_param;
2680 }
2681
2682 /* Use the queue bit map sent by the VF */
2683 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2684 false)) {
2685 aq_ret = -EIO;
2686 goto error_param;
2687 }
2688 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2689 false)) {
2690 aq_ret = -EIO;
2691 goto error_param;
2692 }
2693error_param:
2694 /* send the response to the VF */
2695 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES,
2696 aq_ret);
2697}
2698
2699/**
2700 * i40e_check_enough_queue - find big enough queue number
2701 * @vf: pointer to the VF info
2702 * @needed: the number of items needed
2703 *
2704 * Returns the base item index of the queue, or negative for error
2705 **/
2706static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed)
2707{
2708 unsigned int i, cur_queues, more, pool_size;
2709 struct i40e_lump_tracking *pile;
2710 struct i40e_pf *pf = vf->pf;
2711 struct i40e_vsi *vsi;
2712
2713 vsi = pf->vsi[vf->lan_vsi_idx];
2714 cur_queues = vsi->alloc_queue_pairs;
2715
2716 /* if current allocated queues are enough for need */
2717 if (cur_queues >= needed)
2718 return vsi->base_queue;
2719
2720 pile = pf->qp_pile;
2721 if (cur_queues > 0) {
2722 /* if the allocated queues are not zero
2723 * just check if there are enough queues for more
2724 * behind the allocated queues.
2725 */
2726 more = needed - cur_queues;
2727 for (i = vsi->base_queue + cur_queues;
2728 i < pile->num_entries; i++) {
2729 if (pile->list[i] & I40E_PILE_VALID_BIT)
2730 break;
2731
2732 if (more-- == 1)
2733 /* there is enough */
2734 return vsi->base_queue;
2735 }
2736 }
2737
2738 pool_size = 0;
2739 for (i = 0; i < pile->num_entries; i++) {
2740 if (pile->list[i] & I40E_PILE_VALID_BIT) {
2741 pool_size = 0;
2742 continue;
2743 }
2744 if (needed <= ++pool_size)
2745 /* there is enough */
2746 return i;
2747 }
2748
2749 return -ENOMEM;
2750}
2751
2752/**
2753 * i40e_vc_request_queues_msg
2754 * @vf: pointer to the VF info
2755 * @msg: pointer to the msg buffer
2756 *
2757 * VFs get a default number of queues but can use this message to request a
2758 * different number. If the request is successful, PF will reset the VF and
2759 * return 0. If unsuccessful, PF will send message informing VF of number of
2760 * available queues and return result of sending VF a message.
2761 **/
2762static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
2763{
2764 struct virtchnl_vf_res_request *vfres =
2765 (struct virtchnl_vf_res_request *)msg;
2766 u16 req_pairs = vfres->num_queue_pairs;
2767 u8 cur_pairs = vf->num_queue_pairs;
2768 struct i40e_pf *pf = vf->pf;
2769
2770 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE))
2771 return -EINVAL;
2772
2773 if (req_pairs > I40E_MAX_VF_QUEUES) {
2774 dev_err(&pf->pdev->dev,
2775 "VF %d tried to request more than %d queues.\n",
2776 vf->vf_id,
2777 I40E_MAX_VF_QUEUES);
2778 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES;
2779 } else if (req_pairs - cur_pairs > pf->queues_left) {
2780 dev_warn(&pf->pdev->dev,
2781 "VF %d requested %d more queues, but only %d left.\n",
2782 vf->vf_id,
2783 req_pairs - cur_pairs,
2784 pf->queues_left);
2785 vfres->num_queue_pairs = pf->queues_left + cur_pairs;
2786 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) {
2787 dev_warn(&pf->pdev->dev,
2788 "VF %d requested %d more queues, but there is not enough for it.\n",
2789 vf->vf_id,
2790 req_pairs - cur_pairs);
2791 vfres->num_queue_pairs = cur_pairs;
2792 } else {
2793 /* successful request */
2794 vf->num_req_queues = req_pairs;
2795 i40e_vc_reset_vf(vf, true);
2796 return 0;
2797 }
2798
2799 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0,
2800 (u8 *)vfres, sizeof(*vfres));
2801}
2802
2803/**
2804 * i40e_vc_get_stats_msg
2805 * @vf: pointer to the VF info
2806 * @msg: pointer to the msg buffer
2807 *
2808 * called from the VF to get vsi stats
2809 **/
2810static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg)
2811{
2812 struct virtchnl_queue_select *vqs =
2813 (struct virtchnl_queue_select *)msg;
2814 struct i40e_pf *pf = vf->pf;
2815 struct i40e_eth_stats stats;
2816 int aq_ret = 0;
2817 struct i40e_vsi *vsi;
2818
2819 memset(&stats, 0, sizeof(struct i40e_eth_stats));
2820
2821 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2822 aq_ret = -EINVAL;
2823 goto error_param;
2824 }
2825
2826 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2827 aq_ret = -EINVAL;
2828 goto error_param;
2829 }
2830
2831 vsi = pf->vsi[vf->lan_vsi_idx];
2832 if (!vsi) {
2833 aq_ret = -EINVAL;
2834 goto error_param;
2835 }
2836 i40e_update_eth_stats(vsi);
2837 stats = vsi->eth_stats;
2838
2839error_param:
2840 /* send the response back to the VF */
2841 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret,
2842 (u8 *)&stats, sizeof(stats));
2843}
2844
2845/**
2846 * i40e_can_vf_change_mac
2847 * @vf: pointer to the VF info
2848 *
2849 * Return true if the VF is allowed to change its MAC filters, false otherwise
2850 */
2851static bool i40e_can_vf_change_mac(struct i40e_vf *vf)
2852{
2853 /* If the VF MAC address has been set administratively (via the
2854 * ndo_set_vf_mac command), then deny permission to the VF to
2855 * add/delete unicast MAC addresses, unless the VF is trusted
2856 */
2857 if (vf->pf_set_mac && !vf->trusted)
2858 return false;
2859
2860 return true;
2861}
2862
2863#define I40E_MAX_MACVLAN_PER_HW 3072
2864#define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \
2865 (num_ports))
2866/* If the VF is not trusted restrict the number of MAC/VLAN it can program
2867 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast
2868 */
2869#define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1)
2870#define I40E_VC_MAX_VLAN_PER_VF 16
2871
2872#define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \
2873({ typeof(vf_num) vf_num_ = (vf_num); \
2874 typeof(num_ports) num_ports_ = (num_ports); \
2875 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \
2876 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \
2877 I40E_VC_MAX_MAC_ADDR_PER_VF; })
2878/**
2879 * i40e_check_vf_permission
2880 * @vf: pointer to the VF info
2881 * @al: MAC address list from virtchnl
2882 *
2883 * Check that the given list of MAC addresses is allowed. Will return -EPERM
2884 * if any address in the list is not valid. Checks the following conditions:
2885 *
2886 * 1) broadcast and zero addresses are never valid
2887 * 2) unicast addresses are not allowed if the VMM has administratively set
2888 * the VF MAC address, unless the VF is marked as privileged.
2889 * 3) There is enough space to add all the addresses.
2890 *
2891 * Note that to guarantee consistency, it is expected this function be called
2892 * while holding the mac_filter_hash_lock, as otherwise the current number of
2893 * addresses might not be accurate.
2894 **/
2895static inline int i40e_check_vf_permission(struct i40e_vf *vf,
2896 struct virtchnl_ether_addr_list *al)
2897{
2898 struct i40e_pf *pf = vf->pf;
2899 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
2900 struct i40e_hw *hw = &pf->hw;
2901 int mac2add_cnt = 0;
2902 int i;
2903
2904 for (i = 0; i < al->num_elements; i++) {
2905 struct i40e_mac_filter *f;
2906 u8 *addr = al->list[i].addr;
2907
2908 if (is_broadcast_ether_addr(addr) ||
2909 is_zero_ether_addr(addr)) {
2910 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
2911 addr);
2912 return -EINVAL;
2913 }
2914
2915 /* If the host VMM administrator has set the VF MAC address
2916 * administratively via the ndo_set_vf_mac command then deny
2917 * permission to the VF to add or delete unicast MAC addresses.
2918 * Unless the VF is privileged and then it can do whatever.
2919 * The VF may request to set the MAC address filter already
2920 * assigned to it so do not return an error in that case.
2921 */
2922 if (!i40e_can_vf_change_mac(vf) &&
2923 !is_multicast_ether_addr(addr) &&
2924 !ether_addr_equal(addr, vf->default_lan_addr.addr)) {
2925 dev_err(&pf->pdev->dev,
2926 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
2927 return -EPERM;
2928 }
2929
2930 /*count filters that really will be added*/
2931 f = i40e_find_mac(vsi, addr);
2932 if (!f)
2933 ++mac2add_cnt;
2934 }
2935
2936 /* If this VF is not privileged, then we can't add more than a limited
2937 * number of addresses. Check to make sure that the additions do not
2938 * push us over the limit.
2939 */
2940 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2941 if ((i40e_count_filters(vsi) + mac2add_cnt) >
2942 I40E_VC_MAX_MAC_ADDR_PER_VF) {
2943 dev_err(&pf->pdev->dev,
2944 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n");
2945 return -EPERM;
2946 }
2947 /* If this VF is trusted, it can use more resources than untrusted.
2948 * However to ensure that every trusted VF has appropriate number of
2949 * resources, divide whole pool of resources per port and then across
2950 * all VFs.
2951 */
2952 } else {
2953 if ((i40e_count_filters(vsi) + mac2add_cnt) >
2954 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs,
2955 hw->num_ports)) {
2956 dev_err(&pf->pdev->dev,
2957 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n");
2958 return -EPERM;
2959 }
2960 }
2961 return 0;
2962}
2963
2964/**
2965 * i40e_vc_ether_addr_type - get type of virtchnl_ether_addr
2966 * @vc_ether_addr: used to extract the type
2967 **/
2968static u8
2969i40e_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr)
2970{
2971 return vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK;
2972}
2973
2974/**
2975 * i40e_is_vc_addr_legacy
2976 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
2977 *
2978 * check if the MAC address is from an older VF
2979 **/
2980static bool
2981i40e_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr)
2982{
2983 return i40e_vc_ether_addr_type(vc_ether_addr) ==
2984 VIRTCHNL_ETHER_ADDR_LEGACY;
2985}
2986
2987/**
2988 * i40e_is_vc_addr_primary
2989 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
2990 *
2991 * check if the MAC address is the VF's primary MAC
2992 * This function should only be called when the MAC address in
2993 * virtchnl_ether_addr is a valid unicast MAC
2994 **/
2995static bool
2996i40e_is_vc_addr_primary(struct virtchnl_ether_addr *vc_ether_addr)
2997{
2998 return i40e_vc_ether_addr_type(vc_ether_addr) ==
2999 VIRTCHNL_ETHER_ADDR_PRIMARY;
3000}
3001
3002/**
3003 * i40e_update_vf_mac_addr
3004 * @vf: VF to update
3005 * @vc_ether_addr: structure from VIRTCHNL with MAC to add
3006 *
3007 * update the VF's cached hardware MAC if allowed
3008 **/
3009static void
3010i40e_update_vf_mac_addr(struct i40e_vf *vf,
3011 struct virtchnl_ether_addr *vc_ether_addr)
3012{
3013 u8 *mac_addr = vc_ether_addr->addr;
3014
3015 if (!is_valid_ether_addr(mac_addr))
3016 return;
3017
3018 /* If request to add MAC filter is a primary request update its default
3019 * MAC address with the requested one. If it is a legacy request then
3020 * check if current default is empty if so update the default MAC
3021 */
3022 if (i40e_is_vc_addr_primary(vc_ether_addr)) {
3023 ether_addr_copy(vf->default_lan_addr.addr, mac_addr);
3024 } else if (i40e_is_vc_addr_legacy(vc_ether_addr)) {
3025 if (is_zero_ether_addr(vf->default_lan_addr.addr))
3026 ether_addr_copy(vf->default_lan_addr.addr, mac_addr);
3027 }
3028}
3029
3030/**
3031 * i40e_vc_add_mac_addr_msg
3032 * @vf: pointer to the VF info
3033 * @msg: pointer to the msg buffer
3034 *
3035 * add guest mac address filter
3036 **/
3037static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
3038{
3039 struct virtchnl_ether_addr_list *al =
3040 (struct virtchnl_ether_addr_list *)msg;
3041 struct i40e_pf *pf = vf->pf;
3042 struct i40e_vsi *vsi = NULL;
3043 int ret = 0;
3044 int i;
3045
3046 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3047 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
3048 ret = -EINVAL;
3049 goto error_param;
3050 }
3051
3052 vsi = pf->vsi[vf->lan_vsi_idx];
3053
3054 /* Lock once, because all function inside for loop accesses VSI's
3055 * MAC filter list which needs to be protected using same lock.
3056 */
3057 spin_lock_bh(&vsi->mac_filter_hash_lock);
3058
3059 ret = i40e_check_vf_permission(vf, al);
3060 if (ret) {
3061 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3062 goto error_param;
3063 }
3064
3065 /* add new addresses to the list */
3066 for (i = 0; i < al->num_elements; i++) {
3067 struct i40e_mac_filter *f;
3068
3069 f = i40e_find_mac(vsi, al->list[i].addr);
3070 if (!f) {
3071 f = i40e_add_mac_filter(vsi, al->list[i].addr);
3072
3073 if (!f) {
3074 dev_err(&pf->pdev->dev,
3075 "Unable to add MAC filter %pM for VF %d\n",
3076 al->list[i].addr, vf->vf_id);
3077 ret = -EINVAL;
3078 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3079 goto error_param;
3080 }
3081 }
3082 i40e_update_vf_mac_addr(vf, &al->list[i]);
3083 }
3084 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3085
3086 /* program the updated filter list */
3087 ret = i40e_sync_vsi_filters(vsi);
3088 if (ret)
3089 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
3090 vf->vf_id, ret);
3091
3092error_param:
3093 /* send the response to the VF */
3094 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
3095 ret, NULL, 0);
3096}
3097
3098/**
3099 * i40e_vc_del_mac_addr_msg
3100 * @vf: pointer to the VF info
3101 * @msg: pointer to the msg buffer
3102 *
3103 * remove guest mac address filter
3104 **/
3105static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
3106{
3107 struct virtchnl_ether_addr_list *al =
3108 (struct virtchnl_ether_addr_list *)msg;
3109 bool was_unimac_deleted = false;
3110 struct i40e_pf *pf = vf->pf;
3111 struct i40e_vsi *vsi = NULL;
3112 int ret = 0;
3113 int i;
3114
3115 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3116 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
3117 ret = -EINVAL;
3118 goto error_param;
3119 }
3120
3121 for (i = 0; i < al->num_elements; i++) {
3122 if (is_broadcast_ether_addr(al->list[i].addr) ||
3123 is_zero_ether_addr(al->list[i].addr)) {
3124 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
3125 al->list[i].addr, vf->vf_id);
3126 ret = -EINVAL;
3127 goto error_param;
3128 }
3129 }
3130 vsi = pf->vsi[vf->lan_vsi_idx];
3131
3132 spin_lock_bh(&vsi->mac_filter_hash_lock);
3133 /* delete addresses from the list */
3134 for (i = 0; i < al->num_elements; i++) {
3135 const u8 *addr = al->list[i].addr;
3136
3137 /* Allow to delete VF primary MAC only if it was not set
3138 * administratively by PF or if VF is trusted.
3139 */
3140 if (ether_addr_equal(addr, vf->default_lan_addr.addr)) {
3141 if (i40e_can_vf_change_mac(vf))
3142 was_unimac_deleted = true;
3143 else
3144 continue;
3145 }
3146
3147 if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
3148 ret = -EINVAL;
3149 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3150 goto error_param;
3151 }
3152 }
3153
3154 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3155
3156 if (was_unimac_deleted)
3157 eth_zero_addr(vf->default_lan_addr.addr);
3158
3159 /* program the updated filter list */
3160 ret = i40e_sync_vsi_filters(vsi);
3161 if (ret)
3162 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
3163 vf->vf_id, ret);
3164
3165 if (vf->trusted && was_unimac_deleted) {
3166 struct i40e_mac_filter *f;
3167 struct hlist_node *h;
3168 u8 *macaddr = NULL;
3169 int bkt;
3170
3171 /* set last unicast mac address as default */
3172 spin_lock_bh(&vsi->mac_filter_hash_lock);
3173 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) {
3174 if (is_valid_ether_addr(f->macaddr))
3175 macaddr = f->macaddr;
3176 }
3177 if (macaddr)
3178 ether_addr_copy(vf->default_lan_addr.addr, macaddr);
3179 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3180 }
3181error_param:
3182 /* send the response to the VF */
3183 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret);
3184}
3185
3186/**
3187 * i40e_vc_add_vlan_msg
3188 * @vf: pointer to the VF info
3189 * @msg: pointer to the msg buffer
3190 *
3191 * program guest vlan id
3192 **/
3193static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg)
3194{
3195 struct virtchnl_vlan_filter_list *vfl =
3196 (struct virtchnl_vlan_filter_list *)msg;
3197 struct i40e_pf *pf = vf->pf;
3198 struct i40e_vsi *vsi = NULL;
3199 int aq_ret = 0;
3200 int i;
3201
3202 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
3203 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3204 dev_err(&pf->pdev->dev,
3205 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
3206 goto error_param;
3207 }
3208 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3209 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
3210 aq_ret = -EINVAL;
3211 goto error_param;
3212 }
3213
3214 for (i = 0; i < vfl->num_elements; i++) {
3215 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
3216 aq_ret = -EINVAL;
3217 dev_err(&pf->pdev->dev,
3218 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
3219 goto error_param;
3220 }
3221 }
3222 vsi = pf->vsi[vf->lan_vsi_idx];
3223 if (vsi->info.pvid) {
3224 aq_ret = -EINVAL;
3225 goto error_param;
3226 }
3227
3228 i40e_vlan_stripping_enable(vsi);
3229 for (i = 0; i < vfl->num_elements; i++) {
3230 /* add new VLAN filter */
3231 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
3232 if (!ret)
3233 vf->num_vlan++;
3234
3235 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
3236 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
3237 true,
3238 vfl->vlan_id[i],
3239 NULL);
3240 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
3241 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
3242 true,
3243 vfl->vlan_id[i],
3244 NULL);
3245
3246 if (ret)
3247 dev_err(&pf->pdev->dev,
3248 "Unable to add VLAN filter %d for VF %d, error %d\n",
3249 vfl->vlan_id[i], vf->vf_id, ret);
3250 }
3251
3252error_param:
3253 /* send the response to the VF */
3254 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret);
3255}
3256
3257/**
3258 * i40e_vc_remove_vlan_msg
3259 * @vf: pointer to the VF info
3260 * @msg: pointer to the msg buffer
3261 *
3262 * remove programmed guest vlan id
3263 **/
3264static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg)
3265{
3266 struct virtchnl_vlan_filter_list *vfl =
3267 (struct virtchnl_vlan_filter_list *)msg;
3268 struct i40e_pf *pf = vf->pf;
3269 struct i40e_vsi *vsi = NULL;
3270 int aq_ret = 0;
3271 int i;
3272
3273 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3274 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
3275 aq_ret = -EINVAL;
3276 goto error_param;
3277 }
3278
3279 for (i = 0; i < vfl->num_elements; i++) {
3280 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
3281 aq_ret = -EINVAL;
3282 goto error_param;
3283 }
3284 }
3285
3286 vsi = pf->vsi[vf->lan_vsi_idx];
3287 if (vsi->info.pvid) {
3288 if (vfl->num_elements > 1 || vfl->vlan_id[0])
3289 aq_ret = -EINVAL;
3290 goto error_param;
3291 }
3292
3293 for (i = 0; i < vfl->num_elements; i++) {
3294 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
3295 vf->num_vlan--;
3296
3297 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
3298 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
3299 false,
3300 vfl->vlan_id[i],
3301 NULL);
3302 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
3303 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
3304 false,
3305 vfl->vlan_id[i],
3306 NULL);
3307 }
3308
3309error_param:
3310 /* send the response to the VF */
3311 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret);
3312}
3313
3314/**
3315 * i40e_vc_rdma_msg
3316 * @vf: pointer to the VF info
3317 * @msg: pointer to the msg buffer
3318 * @msglen: msg length
3319 *
3320 * called from the VF for the iwarp msgs
3321 **/
3322static int i40e_vc_rdma_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
3323{
3324 struct i40e_pf *pf = vf->pf;
3325 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
3326 int aq_ret = 0;
3327
3328 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3329 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) {
3330 aq_ret = -EINVAL;
3331 goto error_param;
3332 }
3333
3334 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
3335 msg, msglen);
3336
3337error_param:
3338 /* send the response to the VF */
3339 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_RDMA,
3340 aq_ret);
3341}
3342
3343/**
3344 * i40e_vc_rdma_qvmap_msg
3345 * @vf: pointer to the VF info
3346 * @msg: pointer to the msg buffer
3347 * @config: config qvmap or release it
3348 *
3349 * called from the VF for the iwarp msgs
3350 **/
3351static int i40e_vc_rdma_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config)
3352{
3353 struct virtchnl_rdma_qvlist_info *qvlist_info =
3354 (struct virtchnl_rdma_qvlist_info *)msg;
3355 int aq_ret = 0;
3356
3357 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3358 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) {
3359 aq_ret = -EINVAL;
3360 goto error_param;
3361 }
3362
3363 if (config) {
3364 if (i40e_config_rdma_qvlist(vf, qvlist_info))
3365 aq_ret = -EINVAL;
3366 } else {
3367 i40e_release_rdma_qvlist(vf);
3368 }
3369
3370error_param:
3371 /* send the response to the VF */
3372 return i40e_vc_send_resp_to_vf(vf,
3373 config ? VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP :
3374 VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP,
3375 aq_ret);
3376}
3377
3378/**
3379 * i40e_vc_config_rss_key
3380 * @vf: pointer to the VF info
3381 * @msg: pointer to the msg buffer
3382 *
3383 * Configure the VF's RSS key
3384 **/
3385static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg)
3386{
3387 struct virtchnl_rss_key *vrk =
3388 (struct virtchnl_rss_key *)msg;
3389 struct i40e_pf *pf = vf->pf;
3390 struct i40e_vsi *vsi = NULL;
3391 int aq_ret = 0;
3392
3393 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3394 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) ||
3395 vrk->key_len != I40E_HKEY_ARRAY_SIZE) {
3396 aq_ret = -EINVAL;
3397 goto err;
3398 }
3399
3400 vsi = pf->vsi[vf->lan_vsi_idx];
3401 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
3402err:
3403 /* send the response to the VF */
3404 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY,
3405 aq_ret);
3406}
3407
3408/**
3409 * i40e_vc_config_rss_lut
3410 * @vf: pointer to the VF info
3411 * @msg: pointer to the msg buffer
3412 *
3413 * Configure the VF's RSS LUT
3414 **/
3415static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg)
3416{
3417 struct virtchnl_rss_lut *vrl =
3418 (struct virtchnl_rss_lut *)msg;
3419 struct i40e_pf *pf = vf->pf;
3420 struct i40e_vsi *vsi = NULL;
3421 int aq_ret = 0;
3422 u16 i;
3423
3424 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3425 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) ||
3426 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) {
3427 aq_ret = -EINVAL;
3428 goto err;
3429 }
3430
3431 for (i = 0; i < vrl->lut_entries; i++)
3432 if (vrl->lut[i] >= vf->num_queue_pairs) {
3433 aq_ret = -EINVAL;
3434 goto err;
3435 }
3436
3437 vsi = pf->vsi[vf->lan_vsi_idx];
3438 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
3439 /* send the response to the VF */
3440err:
3441 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT,
3442 aq_ret);
3443}
3444
3445/**
3446 * i40e_vc_get_rss_hena
3447 * @vf: pointer to the VF info
3448 * @msg: pointer to the msg buffer
3449 *
3450 * Return the RSS HENA bits allowed by the hardware
3451 **/
3452static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg)
3453{
3454 struct virtchnl_rss_hena *vrh = NULL;
3455 struct i40e_pf *pf = vf->pf;
3456 int aq_ret = 0;
3457 int len = 0;
3458
3459 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3460 aq_ret = -EINVAL;
3461 goto err;
3462 }
3463 len = sizeof(struct virtchnl_rss_hena);
3464
3465 vrh = kzalloc(len, GFP_KERNEL);
3466 if (!vrh) {
3467 aq_ret = -ENOMEM;
3468 len = 0;
3469 goto err;
3470 }
3471 vrh->hena = i40e_pf_get_default_rss_hena(pf);
3472err:
3473 /* send the response back to the VF */
3474 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS,
3475 aq_ret, (u8 *)vrh, len);
3476 kfree(vrh);
3477 return aq_ret;
3478}
3479
3480/**
3481 * i40e_vc_set_rss_hena
3482 * @vf: pointer to the VF info
3483 * @msg: pointer to the msg buffer
3484 *
3485 * Set the RSS HENA bits for the VF
3486 **/
3487static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg)
3488{
3489 struct virtchnl_rss_hena *vrh =
3490 (struct virtchnl_rss_hena *)msg;
3491 struct i40e_pf *pf = vf->pf;
3492 struct i40e_hw *hw = &pf->hw;
3493 int aq_ret = 0;
3494
3495 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3496 aq_ret = -EINVAL;
3497 goto err;
3498 }
3499 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);
3500 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
3501 (u32)(vrh->hena >> 32));
3502
3503 /* send the response to the VF */
3504err:
3505 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret);
3506}
3507
3508/**
3509 * i40e_vc_enable_vlan_stripping
3510 * @vf: pointer to the VF info
3511 * @msg: pointer to the msg buffer
3512 *
3513 * Enable vlan header stripping for the VF
3514 **/
3515static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3516{
3517 struct i40e_vsi *vsi;
3518 int aq_ret = 0;
3519
3520 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3521 aq_ret = -EINVAL;
3522 goto err;
3523 }
3524
3525 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3526 i40e_vlan_stripping_enable(vsi);
3527
3528 /* send the response to the VF */
3529err:
3530 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
3531 aq_ret);
3532}
3533
3534/**
3535 * i40e_vc_disable_vlan_stripping
3536 * @vf: pointer to the VF info
3537 * @msg: pointer to the msg buffer
3538 *
3539 * Disable vlan header stripping for the VF
3540 **/
3541static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3542{
3543 struct i40e_vsi *vsi;
3544 int aq_ret = 0;
3545
3546 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3547 aq_ret = -EINVAL;
3548 goto err;
3549 }
3550
3551 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3552 i40e_vlan_stripping_disable(vsi);
3553
3554 /* send the response to the VF */
3555err:
3556 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
3557 aq_ret);
3558}
3559
3560/**
3561 * i40e_validate_cloud_filter
3562 * @vf: pointer to VF structure
3563 * @tc_filter: pointer to filter requested
3564 *
3565 * This function validates cloud filter programmed as TC filter for ADq
3566 **/
3567static int i40e_validate_cloud_filter(struct i40e_vf *vf,
3568 struct virtchnl_filter *tc_filter)
3569{
3570 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec;
3571 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec;
3572 struct i40e_pf *pf = vf->pf;
3573 struct i40e_vsi *vsi = NULL;
3574 struct i40e_mac_filter *f;
3575 struct hlist_node *h;
3576 bool found = false;
3577 int bkt;
3578
3579 if (tc_filter->action != VIRTCHNL_ACTION_TC_REDIRECT) {
3580 dev_info(&pf->pdev->dev,
3581 "VF %d: ADQ doesn't support this action (%d)\n",
3582 vf->vf_id, tc_filter->action);
3583 goto err;
3584 }
3585
3586 /* action_meta is TC number here to which the filter is applied */
3587 if (!tc_filter->action_meta ||
3588 tc_filter->action_meta > vf->num_tc) {
3589 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n",
3590 vf->vf_id, tc_filter->action_meta);
3591 goto err;
3592 }
3593
3594 /* Check filter if it's programmed for advanced mode or basic mode.
3595 * There are two ADq modes (for VF only),
3596 * 1. Basic mode: intended to allow as many filter options as possible
3597 * to be added to a VF in Non-trusted mode. Main goal is
3598 * to add filters to its own MAC and VLAN id.
3599 * 2. Advanced mode: is for allowing filters to be applied other than
3600 * its own MAC or VLAN. This mode requires the VF to be
3601 * Trusted.
3602 */
3603 if (mask.dst_mac[0] && !mask.dst_ip[0]) {
3604 vsi = pf->vsi[vf->lan_vsi_idx];
3605 f = i40e_find_mac(vsi, data.dst_mac);
3606
3607 if (!f) {
3608 dev_info(&pf->pdev->dev,
3609 "Destination MAC %pM doesn't belong to VF %d\n",
3610 data.dst_mac, vf->vf_id);
3611 goto err;
3612 }
3613
3614 if (mask.vlan_id) {
3615 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f,
3616 hlist) {
3617 if (f->vlan == ntohs(data.vlan_id)) {
3618 found = true;
3619 break;
3620 }
3621 }
3622 if (!found) {
3623 dev_info(&pf->pdev->dev,
3624 "VF %d doesn't have any VLAN id %u\n",
3625 vf->vf_id, ntohs(data.vlan_id));
3626 goto err;
3627 }
3628 }
3629 } else {
3630 /* Check if VF is trusted */
3631 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3632 dev_err(&pf->pdev->dev,
3633 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n",
3634 vf->vf_id);
3635 return -EIO;
3636 }
3637 }
3638
3639 if (mask.dst_mac[0] & data.dst_mac[0]) {
3640 if (is_broadcast_ether_addr(data.dst_mac) ||
3641 is_zero_ether_addr(data.dst_mac)) {
3642 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n",
3643 vf->vf_id, data.dst_mac);
3644 goto err;
3645 }
3646 }
3647
3648 if (mask.src_mac[0] & data.src_mac[0]) {
3649 if (is_broadcast_ether_addr(data.src_mac) ||
3650 is_zero_ether_addr(data.src_mac)) {
3651 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n",
3652 vf->vf_id, data.src_mac);
3653 goto err;
3654 }
3655 }
3656
3657 if (mask.dst_port & data.dst_port) {
3658 if (!data.dst_port) {
3659 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n",
3660 vf->vf_id);
3661 goto err;
3662 }
3663 }
3664
3665 if (mask.src_port & data.src_port) {
3666 if (!data.src_port) {
3667 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n",
3668 vf->vf_id);
3669 goto err;
3670 }
3671 }
3672
3673 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW &&
3674 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) {
3675 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n",
3676 vf->vf_id);
3677 goto err;
3678 }
3679
3680 if (mask.vlan_id & data.vlan_id) {
3681 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) {
3682 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n",
3683 vf->vf_id);
3684 goto err;
3685 }
3686 }
3687
3688 return 0;
3689err:
3690 return -EIO;
3691}
3692
3693/**
3694 * i40e_find_vsi_from_seid - searches for the vsi with the given seid
3695 * @vf: pointer to the VF info
3696 * @seid: seid of the vsi it is searching for
3697 **/
3698static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid)
3699{
3700 struct i40e_pf *pf = vf->pf;
3701 struct i40e_vsi *vsi = NULL;
3702 int i;
3703
3704 for (i = 0; i < vf->num_tc ; i++) {
3705 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id);
3706 if (vsi && vsi->seid == seid)
3707 return vsi;
3708 }
3709 return NULL;
3710}
3711
3712/**
3713 * i40e_del_all_cloud_filters
3714 * @vf: pointer to the VF info
3715 *
3716 * This function deletes all cloud filters
3717 **/
3718static void i40e_del_all_cloud_filters(struct i40e_vf *vf)
3719{
3720 struct i40e_cloud_filter *cfilter = NULL;
3721 struct i40e_pf *pf = vf->pf;
3722 struct i40e_vsi *vsi = NULL;
3723 struct hlist_node *node;
3724 int ret;
3725
3726 hlist_for_each_entry_safe(cfilter, node,
3727 &vf->cloud_filter_list, cloud_node) {
3728 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid);
3729
3730 if (!vsi) {
3731 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n",
3732 vf->vf_id, cfilter->seid);
3733 continue;
3734 }
3735
3736 if (cfilter->dst_port)
3737 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter,
3738 false);
3739 else
3740 ret = i40e_add_del_cloud_filter(vsi, cfilter, false);
3741 if (ret)
3742 dev_err(&pf->pdev->dev,
3743 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n",
3744 vf->vf_id, ERR_PTR(ret),
3745 i40e_aq_str(&pf->hw,
3746 pf->hw.aq.asq_last_status));
3747
3748 hlist_del(&cfilter->cloud_node);
3749 kfree(cfilter);
3750 vf->num_cloud_filters--;
3751 }
3752}
3753
3754/**
3755 * i40e_vc_del_cloud_filter
3756 * @vf: pointer to the VF info
3757 * @msg: pointer to the msg buffer
3758 *
3759 * This function deletes a cloud filter programmed as TC filter for ADq
3760 **/
3761static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg)
3762{
3763 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3764 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3765 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3766 struct i40e_cloud_filter cfilter, *cf = NULL;
3767 struct i40e_pf *pf = vf->pf;
3768 struct i40e_vsi *vsi = NULL;
3769 struct hlist_node *node;
3770 int aq_ret = 0;
3771 int i, ret;
3772
3773 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3774 aq_ret = -EINVAL;
3775 goto err;
3776 }
3777
3778 if (!vf->adq_enabled) {
3779 dev_info(&pf->pdev->dev,
3780 "VF %d: ADq not enabled, can't apply cloud filter\n",
3781 vf->vf_id);
3782 aq_ret = -EINVAL;
3783 goto err;
3784 }
3785
3786 if (i40e_validate_cloud_filter(vf, vcf)) {
3787 dev_info(&pf->pdev->dev,
3788 "VF %d: Invalid input, can't apply cloud filter\n",
3789 vf->vf_id);
3790 aq_ret = -EINVAL;
3791 goto err;
3792 }
3793
3794 memset(&cfilter, 0, sizeof(cfilter));
3795 /* parse destination mac address */
3796 for (i = 0; i < ETH_ALEN; i++)
3797 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3798
3799 /* parse source mac address */
3800 for (i = 0; i < ETH_ALEN; i++)
3801 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3802
3803 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id;
3804 cfilter.dst_port = mask.dst_port & tcf.dst_port;
3805 cfilter.src_port = mask.src_port & tcf.src_port;
3806
3807 switch (vcf->flow_type) {
3808 case VIRTCHNL_TCP_V4_FLOW:
3809 cfilter.n_proto = ETH_P_IP;
3810 if (mask.dst_ip[0] & tcf.dst_ip[0])
3811 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip,
3812 ARRAY_SIZE(tcf.dst_ip));
3813 else if (mask.src_ip[0] & tcf.dst_ip[0])
3814 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip,
3815 ARRAY_SIZE(tcf.dst_ip));
3816 break;
3817 case VIRTCHNL_TCP_V6_FLOW:
3818 cfilter.n_proto = ETH_P_IPV6;
3819 if (mask.dst_ip[3] & tcf.dst_ip[3])
3820 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip,
3821 sizeof(cfilter.ip.v6.dst_ip6));
3822 if (mask.src_ip[3] & tcf.src_ip[3])
3823 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip,
3824 sizeof(cfilter.ip.v6.src_ip6));
3825 break;
3826 default:
3827 /* TC filter can be configured based on different combinations
3828 * and in this case IP is not a part of filter config
3829 */
3830 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3831 vf->vf_id);
3832 }
3833
3834 /* get the vsi to which the tc belongs to */
3835 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3836 cfilter.seid = vsi->seid;
3837 cfilter.flags = vcf->field_flags;
3838
3839 /* Deleting TC filter */
3840 if (tcf.dst_port)
3841 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false);
3842 else
3843 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false);
3844 if (ret) {
3845 dev_err(&pf->pdev->dev,
3846 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n",
3847 vf->vf_id, ERR_PTR(ret),
3848 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3849 goto err;
3850 }
3851
3852 hlist_for_each_entry_safe(cf, node,
3853 &vf->cloud_filter_list, cloud_node) {
3854 if (cf->seid != cfilter.seid)
3855 continue;
3856 if (mask.dst_port)
3857 if (cfilter.dst_port != cf->dst_port)
3858 continue;
3859 if (mask.dst_mac[0])
3860 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac))
3861 continue;
3862 /* for ipv4 data to be valid, only first byte of mask is set */
3863 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0])
3864 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip,
3865 ARRAY_SIZE(tcf.dst_ip)))
3866 continue;
3867 /* for ipv6, mask is set for all sixteen bytes (4 words) */
3868 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3])
3869 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6,
3870 sizeof(cfilter.ip.v6.src_ip6)))
3871 continue;
3872 if (mask.vlan_id)
3873 if (cfilter.vlan_id != cf->vlan_id)
3874 continue;
3875
3876 hlist_del(&cf->cloud_node);
3877 kfree(cf);
3878 vf->num_cloud_filters--;
3879 }
3880
3881err:
3882 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER,
3883 aq_ret);
3884}
3885
3886/**
3887 * i40e_vc_add_cloud_filter
3888 * @vf: pointer to the VF info
3889 * @msg: pointer to the msg buffer
3890 *
3891 * This function adds a cloud filter programmed as TC filter for ADq
3892 **/
3893static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
3894{
3895 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3896 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3897 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3898 struct i40e_cloud_filter *cfilter = NULL;
3899 struct i40e_pf *pf = vf->pf;
3900 struct i40e_vsi *vsi = NULL;
3901 int aq_ret = 0;
3902 int i;
3903
3904 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3905 aq_ret = -EINVAL;
3906 goto err_out;
3907 }
3908
3909 if (!vf->adq_enabled) {
3910 dev_info(&pf->pdev->dev,
3911 "VF %d: ADq is not enabled, can't apply cloud filter\n",
3912 vf->vf_id);
3913 aq_ret = -EINVAL;
3914 goto err_out;
3915 }
3916
3917 if (i40e_validate_cloud_filter(vf, vcf)) {
3918 dev_info(&pf->pdev->dev,
3919 "VF %d: Invalid input/s, can't apply cloud filter\n",
3920 vf->vf_id);
3921 aq_ret = -EINVAL;
3922 goto err_out;
3923 }
3924
3925 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL);
3926 if (!cfilter) {
3927 aq_ret = -ENOMEM;
3928 goto err_out;
3929 }
3930
3931 /* parse destination mac address */
3932 for (i = 0; i < ETH_ALEN; i++)
3933 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3934
3935 /* parse source mac address */
3936 for (i = 0; i < ETH_ALEN; i++)
3937 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3938
3939 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id;
3940 cfilter->dst_port = mask.dst_port & tcf.dst_port;
3941 cfilter->src_port = mask.src_port & tcf.src_port;
3942
3943 switch (vcf->flow_type) {
3944 case VIRTCHNL_TCP_V4_FLOW:
3945 cfilter->n_proto = ETH_P_IP;
3946 if (mask.dst_ip[0] & tcf.dst_ip[0])
3947 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip,
3948 ARRAY_SIZE(tcf.dst_ip));
3949 else if (mask.src_ip[0] & tcf.dst_ip[0])
3950 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip,
3951 ARRAY_SIZE(tcf.dst_ip));
3952 break;
3953 case VIRTCHNL_TCP_V6_FLOW:
3954 cfilter->n_proto = ETH_P_IPV6;
3955 if (mask.dst_ip[3] & tcf.dst_ip[3])
3956 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip,
3957 sizeof(cfilter->ip.v6.dst_ip6));
3958 if (mask.src_ip[3] & tcf.src_ip[3])
3959 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip,
3960 sizeof(cfilter->ip.v6.src_ip6));
3961 break;
3962 default:
3963 /* TC filter can be configured based on different combinations
3964 * and in this case IP is not a part of filter config
3965 */
3966 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3967 vf->vf_id);
3968 }
3969
3970 /* get the VSI to which the TC belongs to */
3971 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3972 cfilter->seid = vsi->seid;
3973 cfilter->flags = vcf->field_flags;
3974
3975 /* Adding cloud filter programmed as TC filter */
3976 if (tcf.dst_port)
3977 aq_ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true);
3978 else
3979 aq_ret = i40e_add_del_cloud_filter(vsi, cfilter, true);
3980 if (aq_ret) {
3981 dev_err(&pf->pdev->dev,
3982 "VF %d: Failed to add cloud filter, err %pe aq_err %s\n",
3983 vf->vf_id, ERR_PTR(aq_ret),
3984 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3985 goto err_free;
3986 }
3987
3988 INIT_HLIST_NODE(&cfilter->cloud_node);
3989 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list);
3990 /* release the pointer passing it to the collection */
3991 cfilter = NULL;
3992 vf->num_cloud_filters++;
3993err_free:
3994 kfree(cfilter);
3995err_out:
3996 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER,
3997 aq_ret);
3998}
3999
4000/**
4001 * i40e_vc_add_qch_msg: Add queue channel and enable ADq
4002 * @vf: pointer to the VF info
4003 * @msg: pointer to the msg buffer
4004 **/
4005static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
4006{
4007 struct virtchnl_tc_info *tci =
4008 (struct virtchnl_tc_info *)msg;
4009 struct i40e_pf *pf = vf->pf;
4010 struct i40e_link_status *ls = &pf->hw.phy.link_info;
4011 int i, adq_request_qps = 0;
4012 int aq_ret = 0;
4013 u64 speed = 0;
4014
4015 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
4016 aq_ret = -EINVAL;
4017 goto err;
4018 }
4019
4020 /* ADq cannot be applied if spoof check is ON */
4021 if (vf->spoofchk) {
4022 dev_err(&pf->pdev->dev,
4023 "Spoof check is ON, turn it OFF to enable ADq\n");
4024 aq_ret = -EINVAL;
4025 goto err;
4026 }
4027
4028 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) {
4029 dev_err(&pf->pdev->dev,
4030 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n",
4031 vf->vf_id);
4032 aq_ret = -EINVAL;
4033 goto err;
4034 }
4035
4036 /* max number of traffic classes for VF currently capped at 4 */
4037 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) {
4038 dev_err(&pf->pdev->dev,
4039 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n",
4040 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI);
4041 aq_ret = -EINVAL;
4042 goto err;
4043 }
4044
4045 /* validate queues for each TC */
4046 for (i = 0; i < tci->num_tc; i++)
4047 if (!tci->list[i].count ||
4048 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) {
4049 dev_err(&pf->pdev->dev,
4050 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n",
4051 vf->vf_id, i, tci->list[i].count,
4052 I40E_DEFAULT_QUEUES_PER_VF);
4053 aq_ret = -EINVAL;
4054 goto err;
4055 }
4056
4057 /* need Max VF queues but already have default number of queues */
4058 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF;
4059
4060 if (pf->queues_left < adq_request_qps) {
4061 dev_err(&pf->pdev->dev,
4062 "No queues left to allocate to VF %d\n",
4063 vf->vf_id);
4064 aq_ret = -EINVAL;
4065 goto err;
4066 } else {
4067 /* we need to allocate max VF queues to enable ADq so as to
4068 * make sure ADq enabled VF always gets back queues when it
4069 * goes through a reset.
4070 */
4071 vf->num_queue_pairs = I40E_MAX_VF_QUEUES;
4072 }
4073
4074 /* get link speed in MB to validate rate limit */
4075 speed = i40e_vc_link_speed2mbps(ls->link_speed);
4076 if (speed == SPEED_UNKNOWN) {
4077 dev_err(&pf->pdev->dev,
4078 "Cannot detect link speed\n");
4079 aq_ret = -EINVAL;
4080 goto err;
4081 }
4082
4083 /* parse data from the queue channel info */
4084 vf->num_tc = tci->num_tc;
4085 for (i = 0; i < vf->num_tc; i++) {
4086 if (tci->list[i].max_tx_rate) {
4087 if (tci->list[i].max_tx_rate > speed) {
4088 dev_err(&pf->pdev->dev,
4089 "Invalid max tx rate %llu specified for VF %d.",
4090 tci->list[i].max_tx_rate,
4091 vf->vf_id);
4092 aq_ret = -EINVAL;
4093 goto err;
4094 } else {
4095 vf->ch[i].max_tx_rate =
4096 tci->list[i].max_tx_rate;
4097 }
4098 }
4099 vf->ch[i].num_qps = tci->list[i].count;
4100 }
4101
4102 /* set this flag only after making sure all inputs are sane */
4103 vf->adq_enabled = true;
4104
4105 /* reset the VF in order to allocate resources */
4106 i40e_vc_reset_vf(vf, true);
4107
4108 return 0;
4109
4110 /* send the response to the VF */
4111err:
4112 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS,
4113 aq_ret);
4114}
4115
4116/**
4117 * i40e_vc_del_qch_msg
4118 * @vf: pointer to the VF info
4119 * @msg: pointer to the msg buffer
4120 **/
4121static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
4122{
4123 struct i40e_pf *pf = vf->pf;
4124 int aq_ret = 0;
4125
4126 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
4127 aq_ret = -EINVAL;
4128 goto err;
4129 }
4130
4131 if (vf->adq_enabled) {
4132 i40e_del_all_cloud_filters(vf);
4133 i40e_del_qch(vf);
4134 vf->adq_enabled = false;
4135 vf->num_tc = 0;
4136 dev_info(&pf->pdev->dev,
4137 "Deleting Queue Channels and cloud filters for ADq on VF %d\n",
4138 vf->vf_id);
4139 } else {
4140 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n",
4141 vf->vf_id);
4142 aq_ret = -EINVAL;
4143 }
4144
4145 /* reset the VF in order to allocate resources */
4146 i40e_vc_reset_vf(vf, true);
4147
4148 return 0;
4149
4150err:
4151 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS,
4152 aq_ret);
4153}
4154
4155/**
4156 * i40e_vc_process_vf_msg
4157 * @pf: pointer to the PF structure
4158 * @vf_id: source VF id
4159 * @v_opcode: operation code
4160 * @v_retval: unused return value code
4161 * @msg: pointer to the msg buffer
4162 * @msglen: msg length
4163 *
4164 * called from the common aeq/arq handler to
4165 * process request from VF
4166 **/
4167int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
4168 u32 __always_unused v_retval, u8 *msg, u16 msglen)
4169{
4170 struct i40e_hw *hw = &pf->hw;
4171 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
4172 struct i40e_vf *vf;
4173 int ret;
4174
4175 pf->vf_aq_requests++;
4176 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs)
4177 return -EINVAL;
4178 vf = &(pf->vf[local_vf_id]);
4179
4180 /* Check if VF is disabled. */
4181 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states))
4182 return -EINVAL;
4183
4184 /* perform basic checks on the msg */
4185 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
4186
4187 if (ret) {
4188 i40e_vc_send_resp_to_vf(vf, v_opcode, -EINVAL);
4189 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
4190 local_vf_id, v_opcode, msglen);
4191 return ret;
4192 }
4193
4194 switch (v_opcode) {
4195 case VIRTCHNL_OP_VERSION:
4196 ret = i40e_vc_get_version_msg(vf, msg);
4197 break;
4198 case VIRTCHNL_OP_GET_VF_RESOURCES:
4199 ret = i40e_vc_get_vf_resources_msg(vf, msg);
4200 i40e_vc_notify_vf_link_state(vf);
4201 break;
4202 case VIRTCHNL_OP_RESET_VF:
4203 i40e_vc_reset_vf(vf, false);
4204 ret = 0;
4205 break;
4206 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
4207 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg);
4208 break;
4209 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
4210 ret = i40e_vc_config_queues_msg(vf, msg);
4211 break;
4212 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
4213 ret = i40e_vc_config_irq_map_msg(vf, msg);
4214 break;
4215 case VIRTCHNL_OP_ENABLE_QUEUES:
4216 ret = i40e_vc_enable_queues_msg(vf, msg);
4217 i40e_vc_notify_vf_link_state(vf);
4218 break;
4219 case VIRTCHNL_OP_DISABLE_QUEUES:
4220 ret = i40e_vc_disable_queues_msg(vf, msg);
4221 break;
4222 case VIRTCHNL_OP_ADD_ETH_ADDR:
4223 ret = i40e_vc_add_mac_addr_msg(vf, msg);
4224 break;
4225 case VIRTCHNL_OP_DEL_ETH_ADDR:
4226 ret = i40e_vc_del_mac_addr_msg(vf, msg);
4227 break;
4228 case VIRTCHNL_OP_ADD_VLAN:
4229 ret = i40e_vc_add_vlan_msg(vf, msg);
4230 break;
4231 case VIRTCHNL_OP_DEL_VLAN:
4232 ret = i40e_vc_remove_vlan_msg(vf, msg);
4233 break;
4234 case VIRTCHNL_OP_GET_STATS:
4235 ret = i40e_vc_get_stats_msg(vf, msg);
4236 break;
4237 case VIRTCHNL_OP_RDMA:
4238 ret = i40e_vc_rdma_msg(vf, msg, msglen);
4239 break;
4240 case VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP:
4241 ret = i40e_vc_rdma_qvmap_msg(vf, msg, true);
4242 break;
4243 case VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP:
4244 ret = i40e_vc_rdma_qvmap_msg(vf, msg, false);
4245 break;
4246 case VIRTCHNL_OP_CONFIG_RSS_KEY:
4247 ret = i40e_vc_config_rss_key(vf, msg);
4248 break;
4249 case VIRTCHNL_OP_CONFIG_RSS_LUT:
4250 ret = i40e_vc_config_rss_lut(vf, msg);
4251 break;
4252 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
4253 ret = i40e_vc_get_rss_hena(vf, msg);
4254 break;
4255 case VIRTCHNL_OP_SET_RSS_HENA:
4256 ret = i40e_vc_set_rss_hena(vf, msg);
4257 break;
4258 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
4259 ret = i40e_vc_enable_vlan_stripping(vf, msg);
4260 break;
4261 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
4262 ret = i40e_vc_disable_vlan_stripping(vf, msg);
4263 break;
4264 case VIRTCHNL_OP_REQUEST_QUEUES:
4265 ret = i40e_vc_request_queues_msg(vf, msg);
4266 break;
4267 case VIRTCHNL_OP_ENABLE_CHANNELS:
4268 ret = i40e_vc_add_qch_msg(vf, msg);
4269 break;
4270 case VIRTCHNL_OP_DISABLE_CHANNELS:
4271 ret = i40e_vc_del_qch_msg(vf, msg);
4272 break;
4273 case VIRTCHNL_OP_ADD_CLOUD_FILTER:
4274 ret = i40e_vc_add_cloud_filter(vf, msg);
4275 break;
4276 case VIRTCHNL_OP_DEL_CLOUD_FILTER:
4277 ret = i40e_vc_del_cloud_filter(vf, msg);
4278 break;
4279 case VIRTCHNL_OP_UNKNOWN:
4280 default:
4281 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
4282 v_opcode, local_vf_id);
4283 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
4284 -EOPNOTSUPP);
4285 break;
4286 }
4287
4288 return ret;
4289}
4290
4291/**
4292 * i40e_vc_process_vflr_event
4293 * @pf: pointer to the PF structure
4294 *
4295 * called from the vlfr irq handler to
4296 * free up VF resources and state variables
4297 **/
4298int i40e_vc_process_vflr_event(struct i40e_pf *pf)
4299{
4300 struct i40e_hw *hw = &pf->hw;
4301 u32 reg, reg_idx, bit_idx;
4302 struct i40e_vf *vf;
4303 int vf_id;
4304
4305 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state))
4306 return 0;
4307
4308 /* Re-enable the VFLR interrupt cause here, before looking for which
4309 * VF got reset. Otherwise, if another VF gets a reset while the
4310 * first one is being processed, that interrupt will be lost, and
4311 * that VF will be stuck in reset forever.
4312 */
4313 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
4314 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
4315 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
4316 i40e_flush(hw);
4317
4318 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state);
4319 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
4320 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
4321 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
4322 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
4323 vf = &pf->vf[vf_id];
4324 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
4325 if (reg & BIT(bit_idx))
4326 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
4327 i40e_reset_vf(vf, true);
4328 }
4329
4330 return 0;
4331}
4332
4333/**
4334 * i40e_validate_vf
4335 * @pf: the physical function
4336 * @vf_id: VF identifier
4337 *
4338 * Check that the VF is enabled and the VSI exists.
4339 *
4340 * Returns 0 on success, negative on failure
4341 **/
4342static int i40e_validate_vf(struct i40e_pf *pf, int vf_id)
4343{
4344 struct i40e_vsi *vsi;
4345 struct i40e_vf *vf;
4346 int ret = 0;
4347
4348 if (vf_id >= pf->num_alloc_vfs) {
4349 dev_err(&pf->pdev->dev,
4350 "Invalid VF Identifier %d\n", vf_id);
4351 ret = -EINVAL;
4352 goto err_out;
4353 }
4354 vf = &pf->vf[vf_id];
4355 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id);
4356 if (!vsi)
4357 ret = -EINVAL;
4358err_out:
4359 return ret;
4360}
4361
4362/**
4363 * i40e_check_vf_init_timeout
4364 * @vf: the virtual function
4365 *
4366 * Check that the VF's initialization was successfully done and if not
4367 * wait up to 300ms for its finish.
4368 *
4369 * Returns true when VF is initialized, false on timeout
4370 **/
4371static bool i40e_check_vf_init_timeout(struct i40e_vf *vf)
4372{
4373 int i;
4374
4375 /* When the VF is resetting wait until it is done.
4376 * It can take up to 200 milliseconds, but wait for
4377 * up to 300 milliseconds to be safe.
4378 */
4379 for (i = 0; i < 15; i++) {
4380 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states))
4381 return true;
4382 msleep(20);
4383 }
4384
4385 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4386 dev_err(&vf->pf->pdev->dev,
4387 "VF %d still in reset. Try again.\n", vf->vf_id);
4388 return false;
4389 }
4390
4391 return true;
4392}
4393
4394/**
4395 * i40e_ndo_set_vf_mac
4396 * @netdev: network interface device structure
4397 * @vf_id: VF identifier
4398 * @mac: mac address
4399 *
4400 * program VF mac address
4401 **/
4402int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
4403{
4404 struct i40e_netdev_priv *np = netdev_priv(netdev);
4405 struct i40e_vsi *vsi = np->vsi;
4406 struct i40e_pf *pf = vsi->back;
4407 struct i40e_mac_filter *f;
4408 struct i40e_vf *vf;
4409 int ret = 0;
4410 struct hlist_node *h;
4411 int bkt;
4412
4413 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4414 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4415 return -EAGAIN;
4416 }
4417
4418 /* validate the request */
4419 ret = i40e_validate_vf(pf, vf_id);
4420 if (ret)
4421 goto error_param;
4422
4423 vf = &pf->vf[vf_id];
4424 if (!i40e_check_vf_init_timeout(vf)) {
4425 ret = -EAGAIN;
4426 goto error_param;
4427 }
4428 vsi = pf->vsi[vf->lan_vsi_idx];
4429
4430 if (is_multicast_ether_addr(mac)) {
4431 dev_err(&pf->pdev->dev,
4432 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
4433 ret = -EINVAL;
4434 goto error_param;
4435 }
4436
4437 /* Lock once because below invoked function add/del_filter requires
4438 * mac_filter_hash_lock to be held
4439 */
4440 spin_lock_bh(&vsi->mac_filter_hash_lock);
4441
4442 /* delete the temporary mac address */
4443 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
4444 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
4445
4446 /* Delete all the filters for this VSI - we're going to kill it
4447 * anyway.
4448 */
4449 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
4450 __i40e_del_filter(vsi, f);
4451
4452 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4453
4454 /* program mac filter */
4455 if (i40e_sync_vsi_filters(vsi)) {
4456 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
4457 ret = -EIO;
4458 goto error_param;
4459 }
4460 ether_addr_copy(vf->default_lan_addr.addr, mac);
4461
4462 if (is_zero_ether_addr(mac)) {
4463 vf->pf_set_mac = false;
4464 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id);
4465 } else {
4466 vf->pf_set_mac = true;
4467 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n",
4468 mac, vf_id);
4469 }
4470
4471 /* Force the VF interface down so it has to bring up with new MAC
4472 * address
4473 */
4474 i40e_vc_reset_vf(vf, true);
4475 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n");
4476
4477error_param:
4478 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4479 return ret;
4480}
4481
4482/**
4483 * i40e_ndo_set_vf_port_vlan
4484 * @netdev: network interface device structure
4485 * @vf_id: VF identifier
4486 * @vlan_id: mac address
4487 * @qos: priority setting
4488 * @vlan_proto: vlan protocol
4489 *
4490 * program VF vlan id and/or qos
4491 **/
4492int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
4493 u16 vlan_id, u8 qos, __be16 vlan_proto)
4494{
4495 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
4496 struct i40e_netdev_priv *np = netdev_priv(netdev);
4497 bool allmulti = false, alluni = false;
4498 struct i40e_pf *pf = np->vsi->back;
4499 struct i40e_vsi *vsi;
4500 struct i40e_vf *vf;
4501 int ret = 0;
4502
4503 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4504 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4505 return -EAGAIN;
4506 }
4507
4508 /* validate the request */
4509 ret = i40e_validate_vf(pf, vf_id);
4510 if (ret)
4511 goto error_pvid;
4512
4513 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
4514 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
4515 ret = -EINVAL;
4516 goto error_pvid;
4517 }
4518
4519 if (vlan_proto != htons(ETH_P_8021Q)) {
4520 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
4521 ret = -EPROTONOSUPPORT;
4522 goto error_pvid;
4523 }
4524
4525 vf = &pf->vf[vf_id];
4526 if (!i40e_check_vf_init_timeout(vf)) {
4527 ret = -EAGAIN;
4528 goto error_pvid;
4529 }
4530 vsi = pf->vsi[vf->lan_vsi_idx];
4531
4532 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
4533 /* duplicate request, so just return success */
4534 goto error_pvid;
4535
4536 i40e_vlan_stripping_enable(vsi);
4537
4538 /* Locked once because multiple functions below iterate list */
4539 spin_lock_bh(&vsi->mac_filter_hash_lock);
4540
4541 /* Check for condition where there was already a port VLAN ID
4542 * filter set and now it is being deleted by setting it to zero.
4543 * Additionally check for the condition where there was a port
4544 * VLAN but now there is a new and different port VLAN being set.
4545 * Before deleting all the old VLAN filters we must add new ones
4546 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
4547 * MAC addresses deleted.
4548 */
4549 if ((!(vlan_id || qos) ||
4550 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
4551 vsi->info.pvid) {
4552 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
4553 if (ret) {
4554 dev_info(&vsi->back->pdev->dev,
4555 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4556 vsi->back->hw.aq.asq_last_status);
4557 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4558 goto error_pvid;
4559 }
4560 }
4561
4562 if (vsi->info.pvid) {
4563 /* remove all filters on the old VLAN */
4564 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &
4565 VLAN_VID_MASK));
4566 }
4567
4568 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4569
4570 /* disable promisc modes in case they were enabled */
4571 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id,
4572 allmulti, alluni);
4573 if (ret) {
4574 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n");
4575 goto error_pvid;
4576 }
4577
4578 if (vlan_id || qos)
4579 ret = i40e_vsi_add_pvid(vsi, vlanprio);
4580 else
4581 i40e_vsi_remove_pvid(vsi);
4582 spin_lock_bh(&vsi->mac_filter_hash_lock);
4583
4584 if (vlan_id) {
4585 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
4586 vlan_id, qos, vf_id);
4587
4588 /* add new VLAN filter for each MAC */
4589 ret = i40e_add_vlan_all_mac(vsi, vlan_id);
4590 if (ret) {
4591 dev_info(&vsi->back->pdev->dev,
4592 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4593 vsi->back->hw.aq.asq_last_status);
4594 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4595 goto error_pvid;
4596 }
4597
4598 /* remove the previously added non-VLAN MAC filters */
4599 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
4600 }
4601
4602 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4603
4604 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
4605 alluni = true;
4606
4607 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
4608 allmulti = true;
4609
4610 /* Schedule the worker thread to take care of applying changes */
4611 i40e_service_event_schedule(vsi->back);
4612
4613 if (ret) {
4614 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
4615 goto error_pvid;
4616 }
4617
4618 /* The Port VLAN needs to be saved across resets the same as the
4619 * default LAN MAC address.
4620 */
4621 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
4622
4623 i40e_vc_reset_vf(vf, true);
4624 /* During reset the VF got a new VSI, so refresh a pointer. */
4625 vsi = pf->vsi[vf->lan_vsi_idx];
4626
4627 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni);
4628 if (ret) {
4629 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n");
4630 goto error_pvid;
4631 }
4632
4633 ret = 0;
4634
4635error_pvid:
4636 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4637 return ret;
4638}
4639
4640/**
4641 * i40e_ndo_set_vf_bw
4642 * @netdev: network interface device structure
4643 * @vf_id: VF identifier
4644 * @min_tx_rate: Minimum Tx rate
4645 * @max_tx_rate: Maximum Tx rate
4646 *
4647 * configure VF Tx rate
4648 **/
4649int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
4650 int max_tx_rate)
4651{
4652 struct i40e_netdev_priv *np = netdev_priv(netdev);
4653 struct i40e_pf *pf = np->vsi->back;
4654 struct i40e_vsi *vsi;
4655 struct i40e_vf *vf;
4656 int ret = 0;
4657
4658 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4659 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4660 return -EAGAIN;
4661 }
4662
4663 /* validate the request */
4664 ret = i40e_validate_vf(pf, vf_id);
4665 if (ret)
4666 goto error;
4667
4668 if (min_tx_rate) {
4669 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
4670 min_tx_rate, vf_id);
4671 ret = -EINVAL;
4672 goto error;
4673 }
4674
4675 vf = &pf->vf[vf_id];
4676 if (!i40e_check_vf_init_timeout(vf)) {
4677 ret = -EAGAIN;
4678 goto error;
4679 }
4680 vsi = pf->vsi[vf->lan_vsi_idx];
4681
4682 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate);
4683 if (ret)
4684 goto error;
4685
4686 vf->tx_rate = max_tx_rate;
4687error:
4688 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4689 return ret;
4690}
4691
4692/**
4693 * i40e_ndo_get_vf_config
4694 * @netdev: network interface device structure
4695 * @vf_id: VF identifier
4696 * @ivi: VF configuration structure
4697 *
4698 * return VF configuration
4699 **/
4700int i40e_ndo_get_vf_config(struct net_device *netdev,
4701 int vf_id, struct ifla_vf_info *ivi)
4702{
4703 struct i40e_netdev_priv *np = netdev_priv(netdev);
4704 struct i40e_vsi *vsi = np->vsi;
4705 struct i40e_pf *pf = vsi->back;
4706 struct i40e_vf *vf;
4707 int ret = 0;
4708
4709 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4710 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4711 return -EAGAIN;
4712 }
4713
4714 /* validate the request */
4715 ret = i40e_validate_vf(pf, vf_id);
4716 if (ret)
4717 goto error_param;
4718
4719 vf = &pf->vf[vf_id];
4720 /* first vsi is always the LAN vsi */
4721 vsi = pf->vsi[vf->lan_vsi_idx];
4722 if (!vsi) {
4723 ret = -ENOENT;
4724 goto error_param;
4725 }
4726
4727 ivi->vf = vf_id;
4728
4729 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
4730
4731 ivi->max_tx_rate = vf->tx_rate;
4732 ivi->min_tx_rate = 0;
4733 ivi->vlan = le16_get_bits(vsi->info.pvid, I40E_VLAN_MASK);
4734 ivi->qos = le16_get_bits(vsi->info.pvid, I40E_PRIORITY_MASK);
4735 if (vf->link_forced == false)
4736 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
4737 else if (vf->link_up == true)
4738 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
4739 else
4740 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
4741 ivi->spoofchk = vf->spoofchk;
4742 ivi->trusted = vf->trusted;
4743 ret = 0;
4744
4745error_param:
4746 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4747 return ret;
4748}
4749
4750/**
4751 * i40e_ndo_set_vf_link_state
4752 * @netdev: network interface device structure
4753 * @vf_id: VF identifier
4754 * @link: required link state
4755 *
4756 * Set the link state of a specified VF, regardless of physical link state
4757 **/
4758int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
4759{
4760 struct i40e_netdev_priv *np = netdev_priv(netdev);
4761 struct i40e_pf *pf = np->vsi->back;
4762 struct i40e_link_status *ls = &pf->hw.phy.link_info;
4763 struct virtchnl_pf_event pfe;
4764 struct i40e_hw *hw = &pf->hw;
4765 struct i40e_vsi *vsi;
4766 unsigned long q_map;
4767 struct i40e_vf *vf;
4768 int abs_vf_id;
4769 int ret = 0;
4770 int tmp;
4771
4772 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4773 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4774 return -EAGAIN;
4775 }
4776
4777 /* validate the request */
4778 if (vf_id >= pf->num_alloc_vfs) {
4779 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4780 ret = -EINVAL;
4781 goto error_out;
4782 }
4783
4784 vf = &pf->vf[vf_id];
4785 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
4786
4787 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
4788 pfe.severity = PF_EVENT_SEVERITY_INFO;
4789
4790 switch (link) {
4791 case IFLA_VF_LINK_STATE_AUTO:
4792 vf->link_forced = false;
4793 vf->is_disabled_from_host = false;
4794 /* reset needed to reinit VF resources */
4795 i40e_vc_reset_vf(vf, true);
4796 i40e_set_vf_link_state(vf, &pfe, ls);
4797 break;
4798 case IFLA_VF_LINK_STATE_ENABLE:
4799 vf->link_forced = true;
4800 vf->link_up = true;
4801 vf->is_disabled_from_host = false;
4802 /* reset needed to reinit VF resources */
4803 i40e_vc_reset_vf(vf, true);
4804 i40e_set_vf_link_state(vf, &pfe, ls);
4805 break;
4806 case IFLA_VF_LINK_STATE_DISABLE:
4807 vf->link_forced = true;
4808 vf->link_up = false;
4809 i40e_set_vf_link_state(vf, &pfe, ls);
4810
4811 vsi = pf->vsi[vf->lan_vsi_idx];
4812 q_map = BIT(vsi->num_queue_pairs) - 1;
4813
4814 vf->is_disabled_from_host = true;
4815
4816 /* Try to stop both Tx&Rx rings even if one of the calls fails
4817 * to ensure we stop the rings even in case of errors.
4818 * If any of them returns with an error then the first
4819 * error that occurred will be returned.
4820 */
4821 tmp = i40e_ctrl_vf_tx_rings(vsi, q_map, false);
4822 ret = i40e_ctrl_vf_rx_rings(vsi, q_map, false);
4823
4824 ret = tmp ? tmp : ret;
4825 break;
4826 default:
4827 ret = -EINVAL;
4828 goto error_out;
4829 }
4830 /* Notify the VF of its new link state */
4831 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
4832 0, (u8 *)&pfe, sizeof(pfe), NULL);
4833
4834error_out:
4835 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4836 return ret;
4837}
4838
4839/**
4840 * i40e_ndo_set_vf_spoofchk
4841 * @netdev: network interface device structure
4842 * @vf_id: VF identifier
4843 * @enable: flag to enable or disable feature
4844 *
4845 * Enable or disable VF spoof checking
4846 **/
4847int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
4848{
4849 struct i40e_netdev_priv *np = netdev_priv(netdev);
4850 struct i40e_vsi *vsi = np->vsi;
4851 struct i40e_pf *pf = vsi->back;
4852 struct i40e_vsi_context ctxt;
4853 struct i40e_hw *hw = &pf->hw;
4854 struct i40e_vf *vf;
4855 int ret = 0;
4856
4857 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4858 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4859 return -EAGAIN;
4860 }
4861
4862 /* validate the request */
4863 if (vf_id >= pf->num_alloc_vfs) {
4864 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4865 ret = -EINVAL;
4866 goto out;
4867 }
4868
4869 vf = &(pf->vf[vf_id]);
4870 if (!i40e_check_vf_init_timeout(vf)) {
4871 ret = -EAGAIN;
4872 goto out;
4873 }
4874
4875 if (enable == vf->spoofchk)
4876 goto out;
4877
4878 vf->spoofchk = enable;
4879 memset(&ctxt, 0, sizeof(ctxt));
4880 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
4881 ctxt.pf_num = pf->hw.pf_id;
4882 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
4883 if (enable)
4884 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
4885 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
4886 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
4887 if (ret) {
4888 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
4889 ret);
4890 ret = -EIO;
4891 }
4892out:
4893 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4894 return ret;
4895}
4896
4897/**
4898 * i40e_ndo_set_vf_trust
4899 * @netdev: network interface device structure of the pf
4900 * @vf_id: VF identifier
4901 * @setting: trust setting
4902 *
4903 * Enable or disable VF trust setting
4904 **/
4905int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
4906{
4907 struct i40e_netdev_priv *np = netdev_priv(netdev);
4908 struct i40e_pf *pf = np->vsi->back;
4909 struct i40e_vf *vf;
4910 int ret = 0;
4911
4912 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4913 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4914 return -EAGAIN;
4915 }
4916
4917 /* validate the request */
4918 if (vf_id >= pf->num_alloc_vfs) {
4919 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4920 ret = -EINVAL;
4921 goto out;
4922 }
4923
4924 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
4925 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
4926 ret = -EINVAL;
4927 goto out;
4928 }
4929
4930 vf = &pf->vf[vf_id];
4931
4932 if (setting == vf->trusted)
4933 goto out;
4934
4935 vf->trusted = setting;
4936
4937 /* request PF to sync mac/vlan filters for the VF */
4938 set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state);
4939 pf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED;
4940
4941 i40e_vc_reset_vf(vf, true);
4942 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
4943 vf_id, setting ? "" : "un");
4944
4945 if (vf->adq_enabled) {
4946 if (!vf->trusted) {
4947 dev_info(&pf->pdev->dev,
4948 "VF %u no longer Trusted, deleting all cloud filters\n",
4949 vf_id);
4950 i40e_del_all_cloud_filters(vf);
4951 }
4952 }
4953
4954out:
4955 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4956 return ret;
4957}
4958
4959/**
4960 * i40e_get_vf_stats - populate some stats for the VF
4961 * @netdev: the netdev of the PF
4962 * @vf_id: the host OS identifier (0-127)
4963 * @vf_stats: pointer to the OS memory to be initialized
4964 */
4965int i40e_get_vf_stats(struct net_device *netdev, int vf_id,
4966 struct ifla_vf_stats *vf_stats)
4967{
4968 struct i40e_netdev_priv *np = netdev_priv(netdev);
4969 struct i40e_pf *pf = np->vsi->back;
4970 struct i40e_eth_stats *stats;
4971 struct i40e_vsi *vsi;
4972 struct i40e_vf *vf;
4973
4974 /* validate the request */
4975 if (i40e_validate_vf(pf, vf_id))
4976 return -EINVAL;
4977
4978 vf = &pf->vf[vf_id];
4979 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4980 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id);
4981 return -EBUSY;
4982 }
4983
4984 vsi = pf->vsi[vf->lan_vsi_idx];
4985 if (!vsi)
4986 return -EINVAL;
4987
4988 i40e_update_eth_stats(vsi);
4989 stats = &vsi->eth_stats;
4990
4991 memset(vf_stats, 0, sizeof(*vf_stats));
4992
4993 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast +
4994 stats->rx_multicast;
4995 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast +
4996 stats->tx_multicast;
4997 vf_stats->rx_bytes = stats->rx_bytes;
4998 vf_stats->tx_bytes = stats->tx_bytes;
4999 vf_stats->broadcast = stats->rx_broadcast;
5000 vf_stats->multicast = stats->rx_multicast;
5001 vf_stats->rx_dropped = stats->rx_discards + stats->rx_discards_other;
5002 vf_stats->tx_dropped = stats->tx_discards;
5003
5004 return 0;
5005}
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2013 - 2018 Intel Corporation. */
3
4#include "i40e.h"
5
6/*********************notification routines***********************/
7
8/**
9 * i40e_vc_vf_broadcast
10 * @pf: pointer to the PF structure
11 * @v_opcode: operation code
12 * @v_retval: return value
13 * @msg: pointer to the msg buffer
14 * @msglen: msg length
15 *
16 * send a message to all VFs on a given PF
17 **/
18static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
19 enum virtchnl_ops v_opcode,
20 i40e_status v_retval, u8 *msg,
21 u16 msglen)
22{
23 struct i40e_hw *hw = &pf->hw;
24 struct i40e_vf *vf = pf->vf;
25 int i;
26
27 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
28 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;
29 /* Not all vfs are enabled so skip the ones that are not */
30 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
31 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
32 continue;
33
34 /* Ignore return value on purpose - a given VF may fail, but
35 * we need to keep going and send to all of them
36 */
37 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
38 msg, msglen, NULL);
39 }
40}
41
42/**
43 * i40e_vc_notify_vf_link_state
44 * @vf: pointer to the VF structure
45 *
46 * send a link status message to a single VF
47 **/
48static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
49{
50 struct virtchnl_pf_event pfe;
51 struct i40e_pf *pf = vf->pf;
52 struct i40e_hw *hw = &pf->hw;
53 struct i40e_link_status *ls = &pf->hw.phy.link_info;
54 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;
55
56 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
57 pfe.severity = PF_EVENT_SEVERITY_INFO;
58
59 /* Always report link is down if the VF queues aren't enabled */
60 if (!vf->queues_enabled) {
61 pfe.event_data.link_event.link_status = false;
62 pfe.event_data.link_event.link_speed = 0;
63 } else if (vf->link_forced) {
64 pfe.event_data.link_event.link_status = vf->link_up;
65 pfe.event_data.link_event.link_speed =
66 (vf->link_up ? VIRTCHNL_LINK_SPEED_40GB : 0);
67 } else {
68 pfe.event_data.link_event.link_status =
69 ls->link_info & I40E_AQ_LINK_UP;
70 pfe.event_data.link_event.link_speed =
71 i40e_virtchnl_link_speed(ls->link_speed);
72 }
73
74 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
75 0, (u8 *)&pfe, sizeof(pfe), NULL);
76}
77
78/**
79 * i40e_vc_notify_link_state
80 * @pf: pointer to the PF structure
81 *
82 * send a link status message to all VFs on a given PF
83 **/
84void i40e_vc_notify_link_state(struct i40e_pf *pf)
85{
86 int i;
87
88 for (i = 0; i < pf->num_alloc_vfs; i++)
89 i40e_vc_notify_vf_link_state(&pf->vf[i]);
90}
91
92/**
93 * i40e_vc_notify_reset
94 * @pf: pointer to the PF structure
95 *
96 * indicate a pending reset to all VFs on a given PF
97 **/
98void i40e_vc_notify_reset(struct i40e_pf *pf)
99{
100 struct virtchnl_pf_event pfe;
101
102 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
103 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
104 i40e_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, 0,
105 (u8 *)&pfe, sizeof(struct virtchnl_pf_event));
106}
107
108/**
109 * i40e_vc_notify_vf_reset
110 * @vf: pointer to the VF structure
111 *
112 * indicate a pending reset to the given VF
113 **/
114void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
115{
116 struct virtchnl_pf_event pfe;
117 int abs_vf_id;
118
119 /* validate the request */
120 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
121 return;
122
123 /* verify if the VF is in either init or active before proceeding */
124 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
125 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
126 return;
127
128 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id;
129
130 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
131 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
132 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, VIRTCHNL_OP_EVENT,
133 0, (u8 *)&pfe,
134 sizeof(struct virtchnl_pf_event), NULL);
135}
136/***********************misc routines*****************************/
137
138/**
139 * i40e_vc_disable_vf
140 * @vf: pointer to the VF info
141 *
142 * Disable the VF through a SW reset.
143 **/
144static inline void i40e_vc_disable_vf(struct i40e_vf *vf)
145{
146 int i;
147
148 i40e_vc_notify_vf_reset(vf);
149
150 /* We want to ensure that an actual reset occurs initiated after this
151 * function was called. However, we do not want to wait forever, so
152 * we'll give a reasonable time and print a message if we failed to
153 * ensure a reset.
154 */
155 for (i = 0; i < 20; i++) {
156 if (i40e_reset_vf(vf, false))
157 return;
158 usleep_range(10000, 20000);
159 }
160
161 dev_warn(&vf->pf->pdev->dev,
162 "Failed to initiate reset for VF %d after 200 milliseconds\n",
163 vf->vf_id);
164}
165
166/**
167 * i40e_vc_isvalid_vsi_id
168 * @vf: pointer to the VF info
169 * @vsi_id: VF relative VSI id
170 *
171 * check for the valid VSI id
172 **/
173static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
174{
175 struct i40e_pf *pf = vf->pf;
176 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
177
178 return (vsi && (vsi->vf_id == vf->vf_id));
179}
180
181/**
182 * i40e_vc_isvalid_queue_id
183 * @vf: pointer to the VF info
184 * @vsi_id: vsi id
185 * @qid: vsi relative queue id
186 *
187 * check for the valid queue id
188 **/
189static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
190 u16 qid)
191{
192 struct i40e_pf *pf = vf->pf;
193 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
194
195 return (vsi && (qid < vsi->alloc_queue_pairs));
196}
197
198/**
199 * i40e_vc_isvalid_vector_id
200 * @vf: pointer to the VF info
201 * @vector_id: VF relative vector id
202 *
203 * check for the valid vector id
204 **/
205static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id)
206{
207 struct i40e_pf *pf = vf->pf;
208
209 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
210}
211
212/***********************vf resource mgmt routines*****************/
213
214/**
215 * i40e_vc_get_pf_queue_id
216 * @vf: pointer to the VF info
217 * @vsi_id: id of VSI as provided by the FW
218 * @vsi_queue_id: vsi relative queue id
219 *
220 * return PF relative queue id
221 **/
222static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
223 u8 vsi_queue_id)
224{
225 struct i40e_pf *pf = vf->pf;
226 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
227 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
228
229 if (!vsi)
230 return pf_queue_id;
231
232 if (le16_to_cpu(vsi->info.mapping_flags) &
233 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
234 pf_queue_id =
235 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
236 else
237 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
238 vsi_queue_id;
239
240 return pf_queue_id;
241}
242
243/**
244 * i40e_get_real_pf_qid
245 * @vf: pointer to the VF info
246 * @vsi_id: vsi id
247 * @queue_id: queue number
248 *
249 * wrapper function to get pf_queue_id handling ADq code as well
250 **/
251static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id)
252{
253 int i;
254
255 if (vf->adq_enabled) {
256 /* Although VF considers all the queues(can be 1 to 16) as its
257 * own but they may actually belong to different VSIs(up to 4).
258 * We need to find which queues belongs to which VSI.
259 */
260 for (i = 0; i < vf->num_tc; i++) {
261 if (queue_id < vf->ch[i].num_qps) {
262 vsi_id = vf->ch[i].vsi_id;
263 break;
264 }
265 /* find right queue id which is relative to a
266 * given VSI.
267 */
268 queue_id -= vf->ch[i].num_qps;
269 }
270 }
271
272 return i40e_vc_get_pf_queue_id(vf, vsi_id, queue_id);
273}
274
275/**
276 * i40e_config_irq_link_list
277 * @vf: pointer to the VF info
278 * @vsi_id: id of VSI as given by the FW
279 * @vecmap: irq map info
280 *
281 * configure irq link list from the map
282 **/
283static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
284 struct virtchnl_vector_map *vecmap)
285{
286 unsigned long linklistmap = 0, tempmap;
287 struct i40e_pf *pf = vf->pf;
288 struct i40e_hw *hw = &pf->hw;
289 u16 vsi_queue_id, pf_queue_id;
290 enum i40e_queue_type qtype;
291 u16 next_q, vector_id, size;
292 u32 reg, reg_idx;
293 u16 itr_idx = 0;
294
295 vector_id = vecmap->vector_id;
296 /* setup the head */
297 if (0 == vector_id)
298 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
299 else
300 reg_idx = I40E_VPINT_LNKLSTN(
301 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
302 (vector_id - 1));
303
304 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
305 /* Special case - No queues mapped on this vector */
306 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
307 goto irq_list_done;
308 }
309 tempmap = vecmap->rxq_map;
310 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
311 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
312 vsi_queue_id));
313 }
314
315 tempmap = vecmap->txq_map;
316 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
317 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
318 vsi_queue_id + 1));
319 }
320
321 size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES;
322 next_q = find_first_bit(&linklistmap, size);
323 if (unlikely(next_q == size))
324 goto irq_list_done;
325
326 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
327 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
328 pf_queue_id = i40e_get_real_pf_qid(vf, vsi_id, vsi_queue_id);
329 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
330
331 wr32(hw, reg_idx, reg);
332
333 while (next_q < size) {
334 switch (qtype) {
335 case I40E_QUEUE_TYPE_RX:
336 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
337 itr_idx = vecmap->rxitr_idx;
338 break;
339 case I40E_QUEUE_TYPE_TX:
340 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
341 itr_idx = vecmap->txitr_idx;
342 break;
343 default:
344 break;
345 }
346
347 next_q = find_next_bit(&linklistmap, size, next_q + 1);
348 if (next_q < size) {
349 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
350 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
351 pf_queue_id = i40e_get_real_pf_qid(vf,
352 vsi_id,
353 vsi_queue_id);
354 } else {
355 pf_queue_id = I40E_QUEUE_END_OF_LIST;
356 qtype = 0;
357 }
358
359 /* format for the RQCTL & TQCTL regs is same */
360 reg = (vector_id) |
361 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
362 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
363 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
364 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
365 wr32(hw, reg_idx, reg);
366 }
367
368 /* if the vf is running in polling mode and using interrupt zero,
369 * need to disable auto-mask on enabling zero interrupt for VFs.
370 */
371 if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
372 (vector_id == 0)) {
373 reg = rd32(hw, I40E_GLINT_CTL);
374 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {
375 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;
376 wr32(hw, I40E_GLINT_CTL, reg);
377 }
378 }
379
380irq_list_done:
381 i40e_flush(hw);
382}
383
384/**
385 * i40e_release_iwarp_qvlist
386 * @vf: pointer to the VF.
387 *
388 **/
389static void i40e_release_iwarp_qvlist(struct i40e_vf *vf)
390{
391 struct i40e_pf *pf = vf->pf;
392 struct virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info;
393 u32 msix_vf;
394 u32 i;
395
396 if (!vf->qvlist_info)
397 return;
398
399 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
400 for (i = 0; i < qvlist_info->num_vectors; i++) {
401 struct virtchnl_iwarp_qv_info *qv_info;
402 u32 next_q_index, next_q_type;
403 struct i40e_hw *hw = &pf->hw;
404 u32 v_idx, reg_idx, reg;
405
406 qv_info = &qvlist_info->qv_info[i];
407 if (!qv_info)
408 continue;
409 v_idx = qv_info->v_idx;
410 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
411 /* Figure out the queue after CEQ and make that the
412 * first queue.
413 */
414 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
415 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
416 next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK)
417 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT;
418 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK)
419 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT;
420
421 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
422 reg = (next_q_index &
423 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
424 (next_q_type <<
425 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
426
427 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
428 }
429 }
430 kfree(vf->qvlist_info);
431 vf->qvlist_info = NULL;
432}
433
434/**
435 * i40e_config_iwarp_qvlist
436 * @vf: pointer to the VF info
437 * @qvlist_info: queue and vector list
438 *
439 * Return 0 on success or < 0 on error
440 **/
441static int i40e_config_iwarp_qvlist(struct i40e_vf *vf,
442 struct virtchnl_iwarp_qvlist_info *qvlist_info)
443{
444 struct i40e_pf *pf = vf->pf;
445 struct i40e_hw *hw = &pf->hw;
446 struct virtchnl_iwarp_qv_info *qv_info;
447 u32 v_idx, i, reg_idx, reg;
448 u32 next_q_idx, next_q_type;
449 u32 msix_vf;
450 int ret = 0;
451
452 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
453
454 if (qvlist_info->num_vectors > msix_vf) {
455 dev_warn(&pf->pdev->dev,
456 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n",
457 qvlist_info->num_vectors,
458 msix_vf);
459 ret = -EINVAL;
460 goto err_out;
461 }
462
463 kfree(vf->qvlist_info);
464 vf->qvlist_info = kzalloc(struct_size(vf->qvlist_info, qv_info,
465 qvlist_info->num_vectors - 1),
466 GFP_KERNEL);
467 if (!vf->qvlist_info) {
468 ret = -ENOMEM;
469 goto err_out;
470 }
471 vf->qvlist_info->num_vectors = qvlist_info->num_vectors;
472
473 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
474 for (i = 0; i < qvlist_info->num_vectors; i++) {
475 qv_info = &qvlist_info->qv_info[i];
476 if (!qv_info)
477 continue;
478
479 /* Validate vector id belongs to this vf */
480 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) {
481 ret = -EINVAL;
482 goto err_free;
483 }
484
485 v_idx = qv_info->v_idx;
486
487 vf->qvlist_info->qv_info[i] = *qv_info;
488
489 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
490 /* We might be sharing the interrupt, so get the first queue
491 * index and type, push it down the list by adding the new
492 * queue on top. Also link it with the new queue in CEQCTL.
493 */
494 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
495 next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >>
496 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT);
497 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >>
498 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
499
500 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
501 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
502 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |
503 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |
504 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |
505 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |
506 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));
507 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);
508
509 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
510 reg = (qv_info->ceq_idx &
511 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
512 (I40E_QUEUE_TYPE_PE_CEQ <<
513 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
514 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
515 }
516
517 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
518 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |
519 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |
520 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));
521
522 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);
523 }
524 }
525
526 return 0;
527err_free:
528 kfree(vf->qvlist_info);
529 vf->qvlist_info = NULL;
530err_out:
531 return ret;
532}
533
534/**
535 * i40e_config_vsi_tx_queue
536 * @vf: pointer to the VF info
537 * @vsi_id: id of VSI as provided by the FW
538 * @vsi_queue_id: vsi relative queue index
539 * @info: config. info
540 *
541 * configure tx queue
542 **/
543static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
544 u16 vsi_queue_id,
545 struct virtchnl_txq_info *info)
546{
547 struct i40e_pf *pf = vf->pf;
548 struct i40e_hw *hw = &pf->hw;
549 struct i40e_hmc_obj_txq tx_ctx;
550 struct i40e_vsi *vsi;
551 u16 pf_queue_id;
552 u32 qtx_ctl;
553 int ret = 0;
554
555 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
556 ret = -ENOENT;
557 goto error_context;
558 }
559 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
560 vsi = i40e_find_vsi_from_id(pf, vsi_id);
561 if (!vsi) {
562 ret = -ENOENT;
563 goto error_context;
564 }
565
566 /* clear the context structure first */
567 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
568
569 /* only set the required fields */
570 tx_ctx.base = info->dma_ring_addr / 128;
571 tx_ctx.qlen = info->ring_len;
572 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
573 tx_ctx.rdylist_act = 0;
574 tx_ctx.head_wb_ena = info->headwb_enabled;
575 tx_ctx.head_wb_addr = info->dma_headwb_addr;
576
577 /* clear the context in the HMC */
578 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
579 if (ret) {
580 dev_err(&pf->pdev->dev,
581 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
582 pf_queue_id, ret);
583 ret = -ENOENT;
584 goto error_context;
585 }
586
587 /* set the context in the HMC */
588 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
589 if (ret) {
590 dev_err(&pf->pdev->dev,
591 "Failed to set VF LAN Tx queue context %d error: %d\n",
592 pf_queue_id, ret);
593 ret = -ENOENT;
594 goto error_context;
595 }
596
597 /* associate this queue with the PCI VF function */
598 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
599 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
600 & I40E_QTX_CTL_PF_INDX_MASK);
601 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
602 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
603 & I40E_QTX_CTL_VFVM_INDX_MASK);
604 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
605 i40e_flush(hw);
606
607error_context:
608 return ret;
609}
610
611/**
612 * i40e_config_vsi_rx_queue
613 * @vf: pointer to the VF info
614 * @vsi_id: id of VSI as provided by the FW
615 * @vsi_queue_id: vsi relative queue index
616 * @info: config. info
617 *
618 * configure rx queue
619 **/
620static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
621 u16 vsi_queue_id,
622 struct virtchnl_rxq_info *info)
623{
624 struct i40e_pf *pf = vf->pf;
625 struct i40e_hw *hw = &pf->hw;
626 struct i40e_hmc_obj_rxq rx_ctx;
627 u16 pf_queue_id;
628 int ret = 0;
629
630 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
631
632 /* clear the context structure first */
633 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
634
635 /* only set the required fields */
636 rx_ctx.base = info->dma_ring_addr / 128;
637 rx_ctx.qlen = info->ring_len;
638
639 if (info->splithdr_enabled) {
640 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
641 I40E_RX_SPLIT_IP |
642 I40E_RX_SPLIT_TCP_UDP |
643 I40E_RX_SPLIT_SCTP;
644 /* header length validation */
645 if (info->hdr_size > ((2 * 1024) - 64)) {
646 ret = -EINVAL;
647 goto error_param;
648 }
649 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
650
651 /* set split mode 10b */
652 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;
653 }
654
655 /* databuffer length validation */
656 if (info->databuffer_size > ((16 * 1024) - 128)) {
657 ret = -EINVAL;
658 goto error_param;
659 }
660 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
661
662 /* max pkt. length validation */
663 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
664 ret = -EINVAL;
665 goto error_param;
666 }
667 rx_ctx.rxmax = info->max_pkt_size;
668
669 /* enable 32bytes desc always */
670 rx_ctx.dsize = 1;
671
672 /* default values */
673 rx_ctx.lrxqthresh = 1;
674 rx_ctx.crcstrip = 1;
675 rx_ctx.prefena = 1;
676 rx_ctx.l2tsel = 1;
677
678 /* clear the context in the HMC */
679 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
680 if (ret) {
681 dev_err(&pf->pdev->dev,
682 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
683 pf_queue_id, ret);
684 ret = -ENOENT;
685 goto error_param;
686 }
687
688 /* set the context in the HMC */
689 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
690 if (ret) {
691 dev_err(&pf->pdev->dev,
692 "Failed to set VF LAN Rx queue context %d error: %d\n",
693 pf_queue_id, ret);
694 ret = -ENOENT;
695 goto error_param;
696 }
697
698error_param:
699 return ret;
700}
701
702/**
703 * i40e_alloc_vsi_res
704 * @vf: pointer to the VF info
705 * @idx: VSI index, applies only for ADq mode, zero otherwise
706 *
707 * alloc VF vsi context & resources
708 **/
709static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx)
710{
711 struct i40e_mac_filter *f = NULL;
712 struct i40e_pf *pf = vf->pf;
713 struct i40e_vsi *vsi;
714 u64 max_tx_rate = 0;
715 int ret = 0;
716
717 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid,
718 vf->vf_id);
719
720 if (!vsi) {
721 dev_err(&pf->pdev->dev,
722 "add vsi failed for VF %d, aq_err %d\n",
723 vf->vf_id, pf->hw.aq.asq_last_status);
724 ret = -ENOENT;
725 goto error_alloc_vsi_res;
726 }
727
728 if (!idx) {
729 u64 hena = i40e_pf_get_default_rss_hena(pf);
730 u8 broadcast[ETH_ALEN];
731
732 vf->lan_vsi_idx = vsi->idx;
733 vf->lan_vsi_id = vsi->id;
734 /* If the port VLAN has been configured and then the
735 * VF driver was removed then the VSI port VLAN
736 * configuration was destroyed. Check if there is
737 * a port VLAN and restore the VSI configuration if
738 * needed.
739 */
740 if (vf->port_vlan_id)
741 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
742
743 spin_lock_bh(&vsi->mac_filter_hash_lock);
744 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
745 f = i40e_add_mac_filter(vsi,
746 vf->default_lan_addr.addr);
747 if (!f)
748 dev_info(&pf->pdev->dev,
749 "Could not add MAC filter %pM for VF %d\n",
750 vf->default_lan_addr.addr, vf->vf_id);
751 }
752 eth_broadcast_addr(broadcast);
753 f = i40e_add_mac_filter(vsi, broadcast);
754 if (!f)
755 dev_info(&pf->pdev->dev,
756 "Could not allocate VF broadcast filter\n");
757 spin_unlock_bh(&vsi->mac_filter_hash_lock);
758 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena);
759 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32));
760 /* program mac filter only for VF VSI */
761 ret = i40e_sync_vsi_filters(vsi);
762 if (ret)
763 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
764 }
765
766 /* storing VSI index and id for ADq and don't apply the mac filter */
767 if (vf->adq_enabled) {
768 vf->ch[idx].vsi_idx = vsi->idx;
769 vf->ch[idx].vsi_id = vsi->id;
770 }
771
772 /* Set VF bandwidth if specified */
773 if (vf->tx_rate) {
774 max_tx_rate = vf->tx_rate;
775 } else if (vf->ch[idx].max_tx_rate) {
776 max_tx_rate = vf->ch[idx].max_tx_rate;
777 }
778
779 if (max_tx_rate) {
780 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR);
781 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
782 max_tx_rate, 0, NULL);
783 if (ret)
784 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
785 vf->vf_id, ret);
786 }
787
788error_alloc_vsi_res:
789 return ret;
790}
791
792/**
793 * i40e_map_pf_queues_to_vsi
794 * @vf: pointer to the VF info
795 *
796 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
797 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI.
798 **/
799static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf)
800{
801 struct i40e_pf *pf = vf->pf;
802 struct i40e_hw *hw = &pf->hw;
803 u32 reg, num_tc = 1; /* VF has at least one traffic class */
804 u16 vsi_id, qps;
805 int i, j;
806
807 if (vf->adq_enabled)
808 num_tc = vf->num_tc;
809
810 for (i = 0; i < num_tc; i++) {
811 if (vf->adq_enabled) {
812 qps = vf->ch[i].num_qps;
813 vsi_id = vf->ch[i].vsi_id;
814 } else {
815 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
816 vsi_id = vf->lan_vsi_id;
817 }
818
819 for (j = 0; j < 7; j++) {
820 if (j * 2 >= qps) {
821 /* end of list */
822 reg = 0x07FF07FF;
823 } else {
824 u16 qid = i40e_vc_get_pf_queue_id(vf,
825 vsi_id,
826 j * 2);
827 reg = qid;
828 qid = i40e_vc_get_pf_queue_id(vf, vsi_id,
829 (j * 2) + 1);
830 reg |= qid << 16;
831 }
832 i40e_write_rx_ctl(hw,
833 I40E_VSILAN_QTABLE(j, vsi_id),
834 reg);
835 }
836 }
837}
838
839/**
840 * i40e_map_pf_to_vf_queues
841 * @vf: pointer to the VF info
842 *
843 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
844 * function takes care of the second part VPLAN_QTABLE & completes VF mappings.
845 **/
846static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf)
847{
848 struct i40e_pf *pf = vf->pf;
849 struct i40e_hw *hw = &pf->hw;
850 u32 reg, total_qps = 0;
851 u32 qps, num_tc = 1; /* VF has at least one traffic class */
852 u16 vsi_id, qid;
853 int i, j;
854
855 if (vf->adq_enabled)
856 num_tc = vf->num_tc;
857
858 for (i = 0; i < num_tc; i++) {
859 if (vf->adq_enabled) {
860 qps = vf->ch[i].num_qps;
861 vsi_id = vf->ch[i].vsi_id;
862 } else {
863 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
864 vsi_id = vf->lan_vsi_id;
865 }
866
867 for (j = 0; j < qps; j++) {
868 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j);
869
870 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
871 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id),
872 reg);
873 total_qps++;
874 }
875 }
876}
877
878/**
879 * i40e_enable_vf_mappings
880 * @vf: pointer to the VF info
881 *
882 * enable VF mappings
883 **/
884static void i40e_enable_vf_mappings(struct i40e_vf *vf)
885{
886 struct i40e_pf *pf = vf->pf;
887 struct i40e_hw *hw = &pf->hw;
888 u32 reg;
889
890 /* Tell the hardware we're using noncontiguous mapping. HW requires
891 * that VF queues be mapped using this method, even when they are
892 * contiguous in real life
893 */
894 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
895 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
896
897 /* enable VF vplan_qtable mappings */
898 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
899 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
900
901 i40e_map_pf_to_vf_queues(vf);
902 i40e_map_pf_queues_to_vsi(vf);
903
904 i40e_flush(hw);
905}
906
907/**
908 * i40e_disable_vf_mappings
909 * @vf: pointer to the VF info
910 *
911 * disable VF mappings
912 **/
913static void i40e_disable_vf_mappings(struct i40e_vf *vf)
914{
915 struct i40e_pf *pf = vf->pf;
916 struct i40e_hw *hw = &pf->hw;
917 int i;
918
919 /* disable qp mappings */
920 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
921 for (i = 0; i < I40E_MAX_VSI_QP; i++)
922 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
923 I40E_QUEUE_END_OF_LIST);
924 i40e_flush(hw);
925}
926
927/**
928 * i40e_free_vf_res
929 * @vf: pointer to the VF info
930 *
931 * free VF resources
932 **/
933static void i40e_free_vf_res(struct i40e_vf *vf)
934{
935 struct i40e_pf *pf = vf->pf;
936 struct i40e_hw *hw = &pf->hw;
937 u32 reg_idx, reg;
938 int i, j, msix_vf;
939
940 /* Start by disabling VF's configuration API to prevent the OS from
941 * accessing the VF's VSI after it's freed / invalidated.
942 */
943 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
944
945 /* It's possible the VF had requeuested more queues than the default so
946 * do the accounting here when we're about to free them.
947 */
948 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) {
949 pf->queues_left += vf->num_queue_pairs -
950 I40E_DEFAULT_QUEUES_PER_VF;
951 }
952
953 /* free vsi & disconnect it from the parent uplink */
954 if (vf->lan_vsi_idx) {
955 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
956 vf->lan_vsi_idx = 0;
957 vf->lan_vsi_id = 0;
958 }
959
960 /* do the accounting and remove additional ADq VSI's */
961 if (vf->adq_enabled && vf->ch[0].vsi_idx) {
962 for (j = 0; j < vf->num_tc; j++) {
963 /* At this point VSI0 is already released so don't
964 * release it again and only clear their values in
965 * structure variables
966 */
967 if (j)
968 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]);
969 vf->ch[j].vsi_idx = 0;
970 vf->ch[j].vsi_id = 0;
971 }
972 }
973 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
974
975 /* disable interrupts so the VF starts in a known state */
976 for (i = 0; i < msix_vf; i++) {
977 /* format is same for both registers */
978 if (0 == i)
979 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
980 else
981 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
982 (vf->vf_id))
983 + (i - 1));
984 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
985 i40e_flush(hw);
986 }
987
988 /* clear the irq settings */
989 for (i = 0; i < msix_vf; i++) {
990 /* format is same for both registers */
991 if (0 == i)
992 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
993 else
994 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
995 (vf->vf_id))
996 + (i - 1));
997 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
998 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
999 wr32(hw, reg_idx, reg);
1000 i40e_flush(hw);
1001 }
1002 /* reset some of the state variables keeping track of the resources */
1003 vf->num_queue_pairs = 0;
1004 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
1005 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
1006}
1007
1008/**
1009 * i40e_alloc_vf_res
1010 * @vf: pointer to the VF info
1011 *
1012 * allocate VF resources
1013 **/
1014static int i40e_alloc_vf_res(struct i40e_vf *vf)
1015{
1016 struct i40e_pf *pf = vf->pf;
1017 int total_queue_pairs = 0;
1018 int ret, idx;
1019
1020 if (vf->num_req_queues &&
1021 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF)
1022 pf->num_vf_qps = vf->num_req_queues;
1023 else
1024 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF;
1025
1026 /* allocate hw vsi context & associated resources */
1027 ret = i40e_alloc_vsi_res(vf, 0);
1028 if (ret)
1029 goto error_alloc;
1030 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
1031
1032 /* allocate additional VSIs based on tc information for ADq */
1033 if (vf->adq_enabled) {
1034 if (pf->queues_left >=
1035 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) {
1036 /* TC 0 always belongs to VF VSI */
1037 for (idx = 1; idx < vf->num_tc; idx++) {
1038 ret = i40e_alloc_vsi_res(vf, idx);
1039 if (ret)
1040 goto error_alloc;
1041 }
1042 /* send correct number of queues */
1043 total_queue_pairs = I40E_MAX_VF_QUEUES;
1044 } else {
1045 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n",
1046 vf->vf_id);
1047 vf->adq_enabled = false;
1048 }
1049 }
1050
1051 /* We account for each VF to get a default number of queue pairs. If
1052 * the VF has now requested more, we need to account for that to make
1053 * certain we never request more queues than we actually have left in
1054 * HW.
1055 */
1056 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF)
1057 pf->queues_left -=
1058 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF;
1059
1060 if (vf->trusted)
1061 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1062 else
1063 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1064
1065 /* store the total qps number for the runtime
1066 * VF req validation
1067 */
1068 vf->num_queue_pairs = total_queue_pairs;
1069
1070 /* VF is now completely initialized */
1071 set_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1072
1073error_alloc:
1074 if (ret)
1075 i40e_free_vf_res(vf);
1076
1077 return ret;
1078}
1079
1080#define VF_DEVICE_STATUS 0xAA
1081#define VF_TRANS_PENDING_MASK 0x20
1082/**
1083 * i40e_quiesce_vf_pci
1084 * @vf: pointer to the VF structure
1085 *
1086 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
1087 * if the transactions never clear.
1088 **/
1089static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
1090{
1091 struct i40e_pf *pf = vf->pf;
1092 struct i40e_hw *hw = &pf->hw;
1093 int vf_abs_id, i;
1094 u32 reg;
1095
1096 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
1097
1098 wr32(hw, I40E_PF_PCI_CIAA,
1099 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
1100 for (i = 0; i < 100; i++) {
1101 reg = rd32(hw, I40E_PF_PCI_CIAD);
1102 if ((reg & VF_TRANS_PENDING_MASK) == 0)
1103 return 0;
1104 udelay(1);
1105 }
1106 return -EIO;
1107}
1108
1109/**
1110 * i40e_getnum_vf_vsi_vlan_filters
1111 * @vsi: pointer to the vsi
1112 *
1113 * called to get the number of VLANs offloaded on this VF
1114 **/
1115static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1116{
1117 struct i40e_mac_filter *f;
1118 u16 num_vlans = 0, bkt;
1119
1120 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1121 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
1122 num_vlans++;
1123 }
1124
1125 return num_vlans;
1126}
1127
1128/**
1129 * i40e_get_vlan_list_sync
1130 * @vsi: pointer to the VSI
1131 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller
1132 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller.
1133 * This array is allocated here, but has to be freed in caller.
1134 *
1135 * Called to get number of VLANs and VLAN list present in mac_filter_hash.
1136 **/
1137static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans,
1138 s16 **vlan_list)
1139{
1140 struct i40e_mac_filter *f;
1141 int i = 0;
1142 int bkt;
1143
1144 spin_lock_bh(&vsi->mac_filter_hash_lock);
1145 *num_vlans = i40e_getnum_vf_vsi_vlan_filters(vsi);
1146 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC);
1147 if (!(*vlan_list))
1148 goto err;
1149
1150 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1151 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1152 continue;
1153 (*vlan_list)[i++] = f->vlan;
1154 }
1155err:
1156 spin_unlock_bh(&vsi->mac_filter_hash_lock);
1157}
1158
1159/**
1160 * i40e_set_vsi_promisc
1161 * @vf: pointer to the VF struct
1162 * @seid: VSI number
1163 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable
1164 * for a given VLAN
1165 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable
1166 * for a given VLAN
1167 * @vl: List of VLANs - apply filter for given VLANs
1168 * @num_vlans: Number of elements in @vl
1169 **/
1170static i40e_status
1171i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable,
1172 bool unicast_enable, s16 *vl, u16 num_vlans)
1173{
1174 i40e_status aq_ret, aq_tmp = 0;
1175 struct i40e_pf *pf = vf->pf;
1176 struct i40e_hw *hw = &pf->hw;
1177 int i;
1178
1179 /* No VLAN to set promisc on, set on VSI */
1180 if (!num_vlans || !vl) {
1181 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid,
1182 multi_enable,
1183 NULL);
1184 if (aq_ret) {
1185 int aq_err = pf->hw.aq.asq_last_status;
1186
1187 dev_err(&pf->pdev->dev,
1188 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
1189 vf->vf_id,
1190 i40e_stat_str(&pf->hw, aq_ret),
1191 i40e_aq_str(&pf->hw, aq_err));
1192
1193 return aq_ret;
1194 }
1195
1196 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid,
1197 unicast_enable,
1198 NULL, true);
1199
1200 if (aq_ret) {
1201 int aq_err = pf->hw.aq.asq_last_status;
1202
1203 dev_err(&pf->pdev->dev,
1204 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n",
1205 vf->vf_id,
1206 i40e_stat_str(&pf->hw, aq_ret),
1207 i40e_aq_str(&pf->hw, aq_err));
1208 }
1209
1210 return aq_ret;
1211 }
1212
1213 for (i = 0; i < num_vlans; i++) {
1214 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid,
1215 multi_enable,
1216 vl[i], NULL);
1217 if (aq_ret) {
1218 int aq_err = pf->hw.aq.asq_last_status;
1219
1220 dev_err(&pf->pdev->dev,
1221 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
1222 vf->vf_id,
1223 i40e_stat_str(&pf->hw, aq_ret),
1224 i40e_aq_str(&pf->hw, aq_err));
1225
1226 if (!aq_tmp)
1227 aq_tmp = aq_ret;
1228 }
1229
1230 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid,
1231 unicast_enable,
1232 vl[i], NULL);
1233 if (aq_ret) {
1234 int aq_err = pf->hw.aq.asq_last_status;
1235
1236 dev_err(&pf->pdev->dev,
1237 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n",
1238 vf->vf_id,
1239 i40e_stat_str(&pf->hw, aq_ret),
1240 i40e_aq_str(&pf->hw, aq_err));
1241
1242 if (!aq_tmp)
1243 aq_tmp = aq_ret;
1244 }
1245 }
1246
1247 if (aq_tmp)
1248 aq_ret = aq_tmp;
1249
1250 return aq_ret;
1251}
1252
1253/**
1254 * i40e_config_vf_promiscuous_mode
1255 * @vf: pointer to the VF info
1256 * @vsi_id: VSI id
1257 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable
1258 * @alluni: set MAC L2 layer unicast promiscuous enable/disable
1259 *
1260 * Called from the VF to configure the promiscuous mode of
1261 * VF vsis and from the VF reset path to reset promiscuous mode.
1262 **/
1263static i40e_status i40e_config_vf_promiscuous_mode(struct i40e_vf *vf,
1264 u16 vsi_id,
1265 bool allmulti,
1266 bool alluni)
1267{
1268 i40e_status aq_ret = I40E_SUCCESS;
1269 struct i40e_pf *pf = vf->pf;
1270 struct i40e_vsi *vsi;
1271 u16 num_vlans;
1272 s16 *vl;
1273
1274 vsi = i40e_find_vsi_from_id(pf, vsi_id);
1275 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi)
1276 return I40E_ERR_PARAM;
1277
1278 if (vf->port_vlan_id) {
1279 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti,
1280 alluni, &vf->port_vlan_id, 1);
1281 return aq_ret;
1282 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1283 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl);
1284
1285 if (!vl)
1286 return I40E_ERR_NO_MEMORY;
1287
1288 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
1289 vl, num_vlans);
1290 kfree(vl);
1291 return aq_ret;
1292 }
1293
1294 /* no VLANs to set on, set on VSI */
1295 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
1296 NULL, 0);
1297 return aq_ret;
1298}
1299
1300/**
1301 * i40e_trigger_vf_reset
1302 * @vf: pointer to the VF structure
1303 * @flr: VFLR was issued or not
1304 *
1305 * Trigger hardware to start a reset for a particular VF. Expects the caller
1306 * to wait the proper amount of time to allow hardware to reset the VF before
1307 * it cleans up and restores VF functionality.
1308 **/
1309static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
1310{
1311 struct i40e_pf *pf = vf->pf;
1312 struct i40e_hw *hw = &pf->hw;
1313 u32 reg, reg_idx, bit_idx;
1314
1315 /* warn the VF */
1316 clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1317
1318 /* Disable VF's configuration API during reset. The flag is re-enabled
1319 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.
1320 * It's normally disabled in i40e_free_vf_res(), but it's safer
1321 * to do it earlier to give some time to finish to any VF config
1322 * functions that may still be running at this point.
1323 */
1324 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1325
1326 /* In the case of a VFLR, the HW has already reset the VF and we
1327 * just need to clean up, so don't hit the VFRTRIG register.
1328 */
1329 if (!flr) {
1330 /* reset VF using VPGEN_VFRTRIG reg */
1331 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1332 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1333 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1334 i40e_flush(hw);
1335 }
1336 /* clear the VFLR bit in GLGEN_VFLRSTAT */
1337 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
1338 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
1339 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1340 i40e_flush(hw);
1341
1342 if (i40e_quiesce_vf_pci(vf))
1343 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
1344 vf->vf_id);
1345}
1346
1347/**
1348 * i40e_cleanup_reset_vf
1349 * @vf: pointer to the VF structure
1350 *
1351 * Cleanup a VF after the hardware reset is finished. Expects the caller to
1352 * have verified whether the reset is finished properly, and ensure the
1353 * minimum amount of wait time has passed.
1354 **/
1355static void i40e_cleanup_reset_vf(struct i40e_vf *vf)
1356{
1357 struct i40e_pf *pf = vf->pf;
1358 struct i40e_hw *hw = &pf->hw;
1359 u32 reg;
1360
1361 /* disable promisc modes in case they were enabled */
1362 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false);
1363
1364 /* free VF resources to begin resetting the VSI state */
1365 i40e_free_vf_res(vf);
1366
1367 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg.
1368 * By doing this we allow HW to access VF memory at any point. If we
1369 * did it any sooner, HW could access memory while it was being freed
1370 * in i40e_free_vf_res(), causing an IOMMU fault.
1371 *
1372 * On the other hand, this needs to be done ASAP, because the VF driver
1373 * is waiting for this to happen and may report a timeout. It's
1374 * harmless, but it gets logged into Guest OS kernel log, so best avoid
1375 * it.
1376 */
1377 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1378 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1379 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1380
1381 /* reallocate VF resources to finish resetting the VSI state */
1382 if (!i40e_alloc_vf_res(vf)) {
1383 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1384 i40e_enable_vf_mappings(vf);
1385 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1386 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1387 /* Do not notify the client during VF init */
1388 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE,
1389 &vf->vf_states))
1390 i40e_notify_client_of_vf_reset(pf, abs_vf_id);
1391 vf->num_vlan = 0;
1392 }
1393
1394 /* Tell the VF driver the reset is done. This needs to be done only
1395 * after VF has been fully initialized, because the VF driver may
1396 * request resources immediately after setting this flag.
1397 */
1398 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
1399}
1400
1401/**
1402 * i40e_reset_vf
1403 * @vf: pointer to the VF structure
1404 * @flr: VFLR was issued or not
1405 *
1406 * Returns true if the VF is reset, false otherwise.
1407 **/
1408bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
1409{
1410 struct i40e_pf *pf = vf->pf;
1411 struct i40e_hw *hw = &pf->hw;
1412 bool rsd = false;
1413 u32 reg;
1414 int i;
1415
1416 /* If the VFs have been disabled, this means something else is
1417 * resetting the VF, so we shouldn't continue.
1418 */
1419 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1420 return false;
1421
1422 i40e_trigger_vf_reset(vf, flr);
1423
1424 /* poll VPGEN_VFRSTAT reg to make sure
1425 * that reset is complete
1426 */
1427 for (i = 0; i < 10; i++) {
1428 /* VF reset requires driver to first reset the VF and then
1429 * poll the status register to make sure that the reset
1430 * completed successfully. Due to internal HW FIFO flushes,
1431 * we must wait 10ms before the register will be valid.
1432 */
1433 usleep_range(10000, 20000);
1434 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1435 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
1436 rsd = true;
1437 break;
1438 }
1439 }
1440
1441 if (flr)
1442 usleep_range(10000, 20000);
1443
1444 if (!rsd)
1445 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1446 vf->vf_id);
1447 usleep_range(10000, 20000);
1448
1449 /* On initial reset, we don't have any queues to disable */
1450 if (vf->lan_vsi_idx != 0)
1451 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1452
1453 i40e_cleanup_reset_vf(vf);
1454
1455 i40e_flush(hw);
1456 clear_bit(__I40E_VF_DISABLE, pf->state);
1457
1458 return true;
1459}
1460
1461/**
1462 * i40e_reset_all_vfs
1463 * @pf: pointer to the PF structure
1464 * @flr: VFLR was issued or not
1465 *
1466 * Reset all allocated VFs in one go. First, tell the hardware to reset each
1467 * VF, then do all the waiting in one chunk, and finally finish restoring each
1468 * VF after the wait. This is useful during PF routines which need to reset
1469 * all VFs, as otherwise it must perform these resets in a serialized fashion.
1470 *
1471 * Returns true if any VFs were reset, and false otherwise.
1472 **/
1473bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
1474{
1475 struct i40e_hw *hw = &pf->hw;
1476 struct i40e_vf *vf;
1477 int i, v;
1478 u32 reg;
1479
1480 /* If we don't have any VFs, then there is nothing to reset */
1481 if (!pf->num_alloc_vfs)
1482 return false;
1483
1484 /* If VFs have been disabled, there is no need to reset */
1485 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1486 return false;
1487
1488 /* Begin reset on all VFs at once */
1489 for (v = 0; v < pf->num_alloc_vfs; v++)
1490 i40e_trigger_vf_reset(&pf->vf[v], flr);
1491
1492 /* HW requires some time to make sure it can flush the FIFO for a VF
1493 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
1494 * sequence to make sure that it has completed. We'll keep track of
1495 * the VFs using a simple iterator that increments once that VF has
1496 * finished resetting.
1497 */
1498 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) {
1499 usleep_range(10000, 20000);
1500
1501 /* Check each VF in sequence, beginning with the VF to fail
1502 * the previous check.
1503 */
1504 while (v < pf->num_alloc_vfs) {
1505 vf = &pf->vf[v];
1506 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1507 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))
1508 break;
1509
1510 /* If the current VF has finished resetting, move on
1511 * to the next VF in sequence.
1512 */
1513 v++;
1514 }
1515 }
1516
1517 if (flr)
1518 usleep_range(10000, 20000);
1519
1520 /* Display a warning if at least one VF didn't manage to reset in
1521 * time, but continue on with the operation.
1522 */
1523 if (v < pf->num_alloc_vfs)
1524 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1525 pf->vf[v].vf_id);
1526 usleep_range(10000, 20000);
1527
1528 /* Begin disabling all the rings associated with VFs, but do not wait
1529 * between each VF.
1530 */
1531 for (v = 0; v < pf->num_alloc_vfs; v++) {
1532 /* On initial reset, we don't have any queues to disable */
1533 if (pf->vf[v].lan_vsi_idx == 0)
1534 continue;
1535
1536 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]);
1537 }
1538
1539 /* Now that we've notified HW to disable all of the VF rings, wait
1540 * until they finish.
1541 */
1542 for (v = 0; v < pf->num_alloc_vfs; v++) {
1543 /* On initial reset, we don't have any queues to disable */
1544 if (pf->vf[v].lan_vsi_idx == 0)
1545 continue;
1546
1547 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]);
1548 }
1549
1550 /* Hw may need up to 50ms to finish disabling the RX queues. We
1551 * minimize the wait by delaying only once for all VFs.
1552 */
1553 mdelay(50);
1554
1555 /* Finish the reset on each VF */
1556 for (v = 0; v < pf->num_alloc_vfs; v++)
1557 i40e_cleanup_reset_vf(&pf->vf[v]);
1558
1559 i40e_flush(hw);
1560 clear_bit(__I40E_VF_DISABLE, pf->state);
1561
1562 return true;
1563}
1564
1565/**
1566 * i40e_free_vfs
1567 * @pf: pointer to the PF structure
1568 *
1569 * free VF resources
1570 **/
1571void i40e_free_vfs(struct i40e_pf *pf)
1572{
1573 struct i40e_hw *hw = &pf->hw;
1574 u32 reg_idx, bit_idx;
1575 int i, tmp, vf_id;
1576
1577 if (!pf->vf)
1578 return;
1579 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1580 usleep_range(1000, 2000);
1581
1582 i40e_notify_client_of_vf_enable(pf, 0);
1583
1584 /* Amortize wait time by stopping all VFs at the same time */
1585 for (i = 0; i < pf->num_alloc_vfs; i++) {
1586 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1587 continue;
1588
1589 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]);
1590 }
1591
1592 for (i = 0; i < pf->num_alloc_vfs; i++) {
1593 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1594 continue;
1595
1596 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]);
1597 }
1598
1599 /* Disable IOV before freeing resources. This lets any VF drivers
1600 * running in the host get themselves cleaned up before we yank
1601 * the carpet out from underneath their feet.
1602 */
1603 if (!pci_vfs_assigned(pf->pdev))
1604 pci_disable_sriov(pf->pdev);
1605 else
1606 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1607
1608 /* free up VF resources */
1609 tmp = pf->num_alloc_vfs;
1610 pf->num_alloc_vfs = 0;
1611 for (i = 0; i < tmp; i++) {
1612 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1613 i40e_free_vf_res(&pf->vf[i]);
1614 /* disable qp mappings */
1615 i40e_disable_vf_mappings(&pf->vf[i]);
1616 }
1617
1618 kfree(pf->vf);
1619 pf->vf = NULL;
1620
1621 /* This check is for when the driver is unloaded while VFs are
1622 * assigned. Setting the number of VFs to 0 through sysfs is caught
1623 * before this function ever gets called.
1624 */
1625 if (!pci_vfs_assigned(pf->pdev)) {
1626 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1627 * work correctly when SR-IOV gets re-enabled.
1628 */
1629 for (vf_id = 0; vf_id < tmp; vf_id++) {
1630 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1631 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1632 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1633 }
1634 }
1635 clear_bit(__I40E_VF_DISABLE, pf->state);
1636}
1637
1638#ifdef CONFIG_PCI_IOV
1639/**
1640 * i40e_alloc_vfs
1641 * @pf: pointer to the PF structure
1642 * @num_alloc_vfs: number of VFs to allocate
1643 *
1644 * allocate VF resources
1645 **/
1646int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1647{
1648 struct i40e_vf *vfs;
1649 int i, ret = 0;
1650
1651 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1652 i40e_irq_dynamic_disable_icr0(pf);
1653
1654 /* Check to see if we're just allocating resources for extant VFs */
1655 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1656 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1657 if (ret) {
1658 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1659 pf->num_alloc_vfs = 0;
1660 goto err_iov;
1661 }
1662 }
1663 /* allocate memory */
1664 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1665 if (!vfs) {
1666 ret = -ENOMEM;
1667 goto err_alloc;
1668 }
1669 pf->vf = vfs;
1670
1671 /* apply default profile */
1672 for (i = 0; i < num_alloc_vfs; i++) {
1673 vfs[i].pf = pf;
1674 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1675 vfs[i].vf_id = i;
1676
1677 /* assign default capabilities */
1678 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1679 vfs[i].spoofchk = true;
1680
1681 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states);
1682
1683 }
1684 pf->num_alloc_vfs = num_alloc_vfs;
1685
1686 /* VF resources get allocated during reset */
1687 i40e_reset_all_vfs(pf, false);
1688
1689 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1690
1691err_alloc:
1692 if (ret)
1693 i40e_free_vfs(pf);
1694err_iov:
1695 /* Re-enable interrupt 0. */
1696 i40e_irq_dynamic_enable_icr0(pf);
1697 return ret;
1698}
1699
1700#endif
1701/**
1702 * i40e_pci_sriov_enable
1703 * @pdev: pointer to a pci_dev structure
1704 * @num_vfs: number of VFs to allocate
1705 *
1706 * Enable or change the number of VFs
1707 **/
1708static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1709{
1710#ifdef CONFIG_PCI_IOV
1711 struct i40e_pf *pf = pci_get_drvdata(pdev);
1712 int pre_existing_vfs = pci_num_vf(pdev);
1713 int err = 0;
1714
1715 if (test_bit(__I40E_TESTING, pf->state)) {
1716 dev_warn(&pdev->dev,
1717 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1718 err = -EPERM;
1719 goto err_out;
1720 }
1721
1722 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1723 i40e_free_vfs(pf);
1724 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1725 goto out;
1726
1727 if (num_vfs > pf->num_req_vfs) {
1728 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1729 num_vfs, pf->num_req_vfs);
1730 err = -EPERM;
1731 goto err_out;
1732 }
1733
1734 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1735 err = i40e_alloc_vfs(pf, num_vfs);
1736 if (err) {
1737 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1738 goto err_out;
1739 }
1740
1741out:
1742 return num_vfs;
1743
1744err_out:
1745 return err;
1746#endif
1747 return 0;
1748}
1749
1750/**
1751 * i40e_pci_sriov_configure
1752 * @pdev: pointer to a pci_dev structure
1753 * @num_vfs: number of VFs to allocate
1754 *
1755 * Enable or change the number of VFs. Called when the user updates the number
1756 * of VFs in sysfs.
1757 **/
1758int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1759{
1760 struct i40e_pf *pf = pci_get_drvdata(pdev);
1761 int ret = 0;
1762
1763 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
1764 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n");
1765 return -EAGAIN;
1766 }
1767
1768 if (num_vfs) {
1769 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1770 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1771 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
1772 }
1773 ret = i40e_pci_sriov_enable(pdev, num_vfs);
1774 goto sriov_configure_out;
1775 }
1776
1777 if (!pci_vfs_assigned(pf->pdev)) {
1778 i40e_free_vfs(pf);
1779 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1780 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
1781 } else {
1782 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1783 ret = -EINVAL;
1784 goto sriov_configure_out;
1785 }
1786sriov_configure_out:
1787 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
1788 return ret;
1789}
1790
1791/***********************virtual channel routines******************/
1792
1793/**
1794 * i40e_vc_send_msg_to_vf
1795 * @vf: pointer to the VF info
1796 * @v_opcode: virtual channel opcode
1797 * @v_retval: virtual channel return value
1798 * @msg: pointer to the msg buffer
1799 * @msglen: msg length
1800 *
1801 * send msg to VF
1802 **/
1803static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1804 u32 v_retval, u8 *msg, u16 msglen)
1805{
1806 struct i40e_pf *pf;
1807 struct i40e_hw *hw;
1808 int abs_vf_id;
1809 i40e_status aq_ret;
1810
1811 /* validate the request */
1812 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1813 return -EINVAL;
1814
1815 pf = vf->pf;
1816 hw = &pf->hw;
1817 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1818
1819 /* single place to detect unsuccessful return values */
1820 if (v_retval) {
1821 vf->num_invalid_msgs++;
1822 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n",
1823 vf->vf_id, v_opcode, v_retval);
1824 if (vf->num_invalid_msgs >
1825 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1826 dev_err(&pf->pdev->dev,
1827 "Number of invalid messages exceeded for VF %d\n",
1828 vf->vf_id);
1829 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1830 set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1831 }
1832 } else {
1833 vf->num_valid_msgs++;
1834 /* reset the invalid counter, if a valid message is received. */
1835 vf->num_invalid_msgs = 0;
1836 }
1837
1838 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1839 msg, msglen, NULL);
1840 if (aq_ret) {
1841 dev_info(&pf->pdev->dev,
1842 "Unable to send the message to VF %d aq_err %d\n",
1843 vf->vf_id, pf->hw.aq.asq_last_status);
1844 return -EIO;
1845 }
1846
1847 return 0;
1848}
1849
1850/**
1851 * i40e_vc_send_resp_to_vf
1852 * @vf: pointer to the VF info
1853 * @opcode: operation code
1854 * @retval: return value
1855 *
1856 * send resp msg to VF
1857 **/
1858static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1859 enum virtchnl_ops opcode,
1860 i40e_status retval)
1861{
1862 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1863}
1864
1865/**
1866 * i40e_vc_get_version_msg
1867 * @vf: pointer to the VF info
1868 * @msg: pointer to the msg buffer
1869 *
1870 * called from the VF to request the API version used by the PF
1871 **/
1872static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1873{
1874 struct virtchnl_version_info info = {
1875 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
1876 };
1877
1878 vf->vf_ver = *(struct virtchnl_version_info *)msg;
1879 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1880 if (VF_IS_V10(&vf->vf_ver))
1881 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1882 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
1883 I40E_SUCCESS, (u8 *)&info,
1884 sizeof(struct virtchnl_version_info));
1885}
1886
1887/**
1888 * i40e_del_qch - delete all the additional VSIs created as a part of ADq
1889 * @vf: pointer to VF structure
1890 **/
1891static void i40e_del_qch(struct i40e_vf *vf)
1892{
1893 struct i40e_pf *pf = vf->pf;
1894 int i;
1895
1896 /* first element in the array belongs to primary VF VSI and we shouldn't
1897 * delete it. We should however delete the rest of the VSIs created
1898 */
1899 for (i = 1; i < vf->num_tc; i++) {
1900 if (vf->ch[i].vsi_idx) {
1901 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]);
1902 vf->ch[i].vsi_idx = 0;
1903 vf->ch[i].vsi_id = 0;
1904 }
1905 }
1906}
1907
1908/**
1909 * i40e_vc_get_vf_resources_msg
1910 * @vf: pointer to the VF info
1911 * @msg: pointer to the msg buffer
1912 *
1913 * called from the VF to request its resources
1914 **/
1915static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1916{
1917 struct virtchnl_vf_resource *vfres = NULL;
1918 struct i40e_pf *pf = vf->pf;
1919 i40e_status aq_ret = 0;
1920 struct i40e_vsi *vsi;
1921 int num_vsis = 1;
1922 size_t len = 0;
1923 int ret;
1924
1925 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
1926 aq_ret = I40E_ERR_PARAM;
1927 goto err;
1928 }
1929
1930 len = struct_size(vfres, vsi_res, num_vsis);
1931 vfres = kzalloc(len, GFP_KERNEL);
1932 if (!vfres) {
1933 aq_ret = I40E_ERR_NO_MEMORY;
1934 len = 0;
1935 goto err;
1936 }
1937 if (VF_IS_V11(&vf->vf_ver))
1938 vf->driver_caps = *(u32 *)msg;
1939 else
1940 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
1941 VIRTCHNL_VF_OFFLOAD_RSS_REG |
1942 VIRTCHNL_VF_OFFLOAD_VLAN;
1943
1944 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
1945 vsi = pf->vsi[vf->lan_vsi_idx];
1946 if (!vsi->info.pvid)
1947 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
1948
1949 if (i40e_vf_client_capable(pf, vf->vf_id) &&
1950 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) {
1951 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP;
1952 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
1953 } else {
1954 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
1955 }
1956
1957 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
1958 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
1959 } else {
1960 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) &&
1961 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
1962 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1963 else
1964 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
1965 }
1966
1967 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
1968 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
1969 vfres->vf_cap_flags |=
1970 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
1971 }
1972
1973 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
1974 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
1975
1976 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) &&
1977 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
1978 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
1979
1980 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
1981 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
1982 dev_err(&pf->pdev->dev,
1983 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
1984 vf->vf_id);
1985 aq_ret = I40E_ERR_PARAM;
1986 goto err;
1987 }
1988 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1989 }
1990
1991 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) {
1992 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1993 vfres->vf_cap_flags |=
1994 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
1995 }
1996
1997 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
1998 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
1999
2000 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)
2001 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ;
2002
2003 vfres->num_vsis = num_vsis;
2004 vfres->num_queue_pairs = vf->num_queue_pairs;
2005 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
2006 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
2007 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
2008
2009 if (vf->lan_vsi_idx) {
2010 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
2011 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
2012 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
2013 /* VFs only use TC 0 */
2014 vfres->vsi_res[0].qset_handle
2015 = le16_to_cpu(vsi->info.qs_handle[0]);
2016 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
2017 vf->default_lan_addr.addr);
2018 }
2019 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
2020
2021err:
2022 /* send the response back to the VF */
2023 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES,
2024 aq_ret, (u8 *)vfres, len);
2025
2026 kfree(vfres);
2027 return ret;
2028}
2029
2030/**
2031 * i40e_vc_reset_vf_msg
2032 * @vf: pointer to the VF info
2033 *
2034 * called from the VF to reset itself,
2035 * unlike other virtchnl messages, PF driver
2036 * doesn't send the response back to the VF
2037 **/
2038static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
2039{
2040 if (test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
2041 i40e_reset_vf(vf, false);
2042}
2043
2044/**
2045 * i40e_vc_config_promiscuous_mode_msg
2046 * @vf: pointer to the VF info
2047 * @msg: pointer to the msg buffer
2048 *
2049 * called from the VF to configure the promiscuous mode of
2050 * VF vsis
2051 **/
2052static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg)
2053{
2054 struct virtchnl_promisc_info *info =
2055 (struct virtchnl_promisc_info *)msg;
2056 struct i40e_pf *pf = vf->pf;
2057 i40e_status aq_ret = 0;
2058 bool allmulti = false;
2059 bool alluni = false;
2060
2061 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2062 aq_ret = I40E_ERR_PARAM;
2063 goto err_out;
2064 }
2065 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2066 dev_err(&pf->pdev->dev,
2067 "Unprivileged VF %d is attempting to configure promiscuous mode\n",
2068 vf->vf_id);
2069
2070 /* Lie to the VF on purpose, because this is an error we can
2071 * ignore. Unprivileged VF is not a virtual channel error.
2072 */
2073 aq_ret = 0;
2074 goto err_out;
2075 }
2076
2077 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) {
2078 aq_ret = I40E_ERR_PARAM;
2079 goto err_out;
2080 }
2081
2082 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
2083 aq_ret = I40E_ERR_PARAM;
2084 goto err_out;
2085 }
2086
2087 /* Multicast promiscuous handling*/
2088 if (info->flags & FLAG_VF_MULTICAST_PROMISC)
2089 allmulti = true;
2090
2091 if (info->flags & FLAG_VF_UNICAST_PROMISC)
2092 alluni = true;
2093 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti,
2094 alluni);
2095 if (aq_ret)
2096 goto err_out;
2097
2098 if (allmulti) {
2099 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC,
2100 &vf->vf_states))
2101 dev_info(&pf->pdev->dev,
2102 "VF %d successfully set multicast promiscuous mode\n",
2103 vf->vf_id);
2104 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC,
2105 &vf->vf_states))
2106 dev_info(&pf->pdev->dev,
2107 "VF %d successfully unset multicast promiscuous mode\n",
2108 vf->vf_id);
2109
2110 if (alluni) {
2111 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC,
2112 &vf->vf_states))
2113 dev_info(&pf->pdev->dev,
2114 "VF %d successfully set unicast promiscuous mode\n",
2115 vf->vf_id);
2116 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC,
2117 &vf->vf_states))
2118 dev_info(&pf->pdev->dev,
2119 "VF %d successfully unset unicast promiscuous mode\n",
2120 vf->vf_id);
2121
2122err_out:
2123 /* send the response to the VF */
2124 return i40e_vc_send_resp_to_vf(vf,
2125 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
2126 aq_ret);
2127}
2128
2129/**
2130 * i40e_vc_config_queues_msg
2131 * @vf: pointer to the VF info
2132 * @msg: pointer to the msg buffer
2133 *
2134 * called from the VF to configure the rx/tx
2135 * queues
2136 **/
2137static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
2138{
2139 struct virtchnl_vsi_queue_config_info *qci =
2140 (struct virtchnl_vsi_queue_config_info *)msg;
2141 struct virtchnl_queue_pair_info *qpi;
2142 struct i40e_pf *pf = vf->pf;
2143 u16 vsi_id, vsi_queue_id = 0;
2144 u16 num_qps_all = 0;
2145 i40e_status aq_ret = 0;
2146 int i, j = 0, idx = 0;
2147
2148 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2149 aq_ret = I40E_ERR_PARAM;
2150 goto error_param;
2151 }
2152
2153 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) {
2154 aq_ret = I40E_ERR_PARAM;
2155 goto error_param;
2156 }
2157
2158 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) {
2159 aq_ret = I40E_ERR_PARAM;
2160 goto error_param;
2161 }
2162
2163 if (vf->adq_enabled) {
2164 for (i = 0; i < I40E_MAX_VF_VSI; i++)
2165 num_qps_all += vf->ch[i].num_qps;
2166 if (num_qps_all != qci->num_queue_pairs) {
2167 aq_ret = I40E_ERR_PARAM;
2168 goto error_param;
2169 }
2170 }
2171
2172 vsi_id = qci->vsi_id;
2173
2174 for (i = 0; i < qci->num_queue_pairs; i++) {
2175 qpi = &qci->qpair[i];
2176
2177 if (!vf->adq_enabled) {
2178 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
2179 qpi->txq.queue_id)) {
2180 aq_ret = I40E_ERR_PARAM;
2181 goto error_param;
2182 }
2183
2184 vsi_queue_id = qpi->txq.queue_id;
2185
2186 if (qpi->txq.vsi_id != qci->vsi_id ||
2187 qpi->rxq.vsi_id != qci->vsi_id ||
2188 qpi->rxq.queue_id != vsi_queue_id) {
2189 aq_ret = I40E_ERR_PARAM;
2190 goto error_param;
2191 }
2192 }
2193
2194 if (vf->adq_enabled) {
2195 if (idx >= ARRAY_SIZE(vf->ch)) {
2196 aq_ret = I40E_ERR_NO_AVAILABLE_VSI;
2197 goto error_param;
2198 }
2199 vsi_id = vf->ch[idx].vsi_id;
2200 }
2201
2202 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
2203 &qpi->rxq) ||
2204 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
2205 &qpi->txq)) {
2206 aq_ret = I40E_ERR_PARAM;
2207 goto error_param;
2208 }
2209
2210 /* For ADq there can be up to 4 VSIs with max 4 queues each.
2211 * VF does not know about these additional VSIs and all
2212 * it cares is about its own queues. PF configures these queues
2213 * to its appropriate VSIs based on TC mapping
2214 */
2215 if (vf->adq_enabled) {
2216 if (idx >= ARRAY_SIZE(vf->ch)) {
2217 aq_ret = I40E_ERR_NO_AVAILABLE_VSI;
2218 goto error_param;
2219 }
2220 if (j == (vf->ch[idx].num_qps - 1)) {
2221 idx++;
2222 j = 0; /* resetting the queue count */
2223 vsi_queue_id = 0;
2224 } else {
2225 j++;
2226 vsi_queue_id++;
2227 }
2228 }
2229 }
2230 /* set vsi num_queue_pairs in use to num configured by VF */
2231 if (!vf->adq_enabled) {
2232 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs =
2233 qci->num_queue_pairs;
2234 } else {
2235 for (i = 0; i < vf->num_tc; i++)
2236 pf->vsi[vf->ch[i].vsi_idx]->num_queue_pairs =
2237 vf->ch[i].num_qps;
2238 }
2239
2240error_param:
2241 /* send the response to the VF */
2242 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
2243 aq_ret);
2244}
2245
2246/**
2247 * i40e_validate_queue_map
2248 * @vsi_id: vsi id
2249 * @queuemap: Tx or Rx queue map
2250 *
2251 * check if Tx or Rx queue map is valid
2252 **/
2253static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id,
2254 unsigned long queuemap)
2255{
2256 u16 vsi_queue_id, queue_id;
2257
2258 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) {
2259 if (vf->adq_enabled) {
2260 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id;
2261 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF);
2262 } else {
2263 queue_id = vsi_queue_id;
2264 }
2265
2266 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id))
2267 return -EINVAL;
2268 }
2269
2270 return 0;
2271}
2272
2273/**
2274 * i40e_vc_config_irq_map_msg
2275 * @vf: pointer to the VF info
2276 * @msg: pointer to the msg buffer
2277 *
2278 * called from the VF to configure the irq to
2279 * queue map
2280 **/
2281static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg)
2282{
2283 struct virtchnl_irq_map_info *irqmap_info =
2284 (struct virtchnl_irq_map_info *)msg;
2285 struct virtchnl_vector_map *map;
2286 u16 vsi_id;
2287 i40e_status aq_ret = 0;
2288 int i;
2289
2290 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2291 aq_ret = I40E_ERR_PARAM;
2292 goto error_param;
2293 }
2294
2295 if (irqmap_info->num_vectors >
2296 vf->pf->hw.func_caps.num_msix_vectors_vf) {
2297 aq_ret = I40E_ERR_PARAM;
2298 goto error_param;
2299 }
2300
2301 for (i = 0; i < irqmap_info->num_vectors; i++) {
2302 map = &irqmap_info->vecmap[i];
2303 /* validate msg params */
2304 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) ||
2305 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) {
2306 aq_ret = I40E_ERR_PARAM;
2307 goto error_param;
2308 }
2309 vsi_id = map->vsi_id;
2310
2311 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) {
2312 aq_ret = I40E_ERR_PARAM;
2313 goto error_param;
2314 }
2315
2316 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) {
2317 aq_ret = I40E_ERR_PARAM;
2318 goto error_param;
2319 }
2320
2321 i40e_config_irq_link_list(vf, vsi_id, map);
2322 }
2323error_param:
2324 /* send the response to the VF */
2325 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP,
2326 aq_ret);
2327}
2328
2329/**
2330 * i40e_ctrl_vf_tx_rings
2331 * @vsi: the SRIOV VSI being configured
2332 * @q_map: bit map of the queues to be enabled
2333 * @enable: start or stop the queue
2334 **/
2335static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2336 bool enable)
2337{
2338 struct i40e_pf *pf = vsi->back;
2339 int ret = 0;
2340 u16 q_id;
2341
2342 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2343 ret = i40e_control_wait_tx_q(vsi->seid, pf,
2344 vsi->base_queue + q_id,
2345 false /*is xdp*/, enable);
2346 if (ret)
2347 break;
2348 }
2349 return ret;
2350}
2351
2352/**
2353 * i40e_ctrl_vf_rx_rings
2354 * @vsi: the SRIOV VSI being configured
2355 * @q_map: bit map of the queues to be enabled
2356 * @enable: start or stop the queue
2357 **/
2358static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2359 bool enable)
2360{
2361 struct i40e_pf *pf = vsi->back;
2362 int ret = 0;
2363 u16 q_id;
2364
2365 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2366 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id,
2367 enable);
2368 if (ret)
2369 break;
2370 }
2371 return ret;
2372}
2373
2374/**
2375 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL
2376 * @vqs: virtchnl_queue_select structure containing bitmaps to validate
2377 *
2378 * Returns true if validation was successful, else false.
2379 */
2380static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
2381{
2382 if ((!vqs->rx_queues && !vqs->tx_queues) ||
2383 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) ||
2384 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES))
2385 return false;
2386
2387 return true;
2388}
2389
2390/**
2391 * i40e_vc_enable_queues_msg
2392 * @vf: pointer to the VF info
2393 * @msg: pointer to the msg buffer
2394 *
2395 * called from the VF to enable all or specific queue(s)
2396 **/
2397static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg)
2398{
2399 struct virtchnl_queue_select *vqs =
2400 (struct virtchnl_queue_select *)msg;
2401 struct i40e_pf *pf = vf->pf;
2402 i40e_status aq_ret = 0;
2403 int i;
2404
2405 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2406 aq_ret = I40E_ERR_PARAM;
2407 goto error_param;
2408 }
2409
2410 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2411 aq_ret = I40E_ERR_PARAM;
2412 goto error_param;
2413 }
2414
2415 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2416 aq_ret = I40E_ERR_PARAM;
2417 goto error_param;
2418 }
2419
2420 /* Use the queue bit map sent by the VF */
2421 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2422 true)) {
2423 aq_ret = I40E_ERR_TIMEOUT;
2424 goto error_param;
2425 }
2426 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2427 true)) {
2428 aq_ret = I40E_ERR_TIMEOUT;
2429 goto error_param;
2430 }
2431
2432 /* need to start the rings for additional ADq VSI's as well */
2433 if (vf->adq_enabled) {
2434 /* zero belongs to LAN VSI */
2435 for (i = 1; i < vf->num_tc; i++) {
2436 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx]))
2437 aq_ret = I40E_ERR_TIMEOUT;
2438 }
2439 }
2440
2441 vf->queues_enabled = true;
2442
2443error_param:
2444 /* send the response to the VF */
2445 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES,
2446 aq_ret);
2447}
2448
2449/**
2450 * i40e_vc_disable_queues_msg
2451 * @vf: pointer to the VF info
2452 * @msg: pointer to the msg buffer
2453 *
2454 * called from the VF to disable all or specific
2455 * queue(s)
2456 **/
2457static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg)
2458{
2459 struct virtchnl_queue_select *vqs =
2460 (struct virtchnl_queue_select *)msg;
2461 struct i40e_pf *pf = vf->pf;
2462 i40e_status aq_ret = 0;
2463
2464 /* Immediately mark queues as disabled */
2465 vf->queues_enabled = false;
2466
2467 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2468 aq_ret = I40E_ERR_PARAM;
2469 goto error_param;
2470 }
2471
2472 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2473 aq_ret = I40E_ERR_PARAM;
2474 goto error_param;
2475 }
2476
2477 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2478 aq_ret = I40E_ERR_PARAM;
2479 goto error_param;
2480 }
2481
2482 /* Use the queue bit map sent by the VF */
2483 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2484 false)) {
2485 aq_ret = I40E_ERR_TIMEOUT;
2486 goto error_param;
2487 }
2488 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2489 false)) {
2490 aq_ret = I40E_ERR_TIMEOUT;
2491 goto error_param;
2492 }
2493error_param:
2494 /* send the response to the VF */
2495 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES,
2496 aq_ret);
2497}
2498
2499/**
2500 * i40e_vc_request_queues_msg
2501 * @vf: pointer to the VF info
2502 * @msg: pointer to the msg buffer
2503 *
2504 * VFs get a default number of queues but can use this message to request a
2505 * different number. If the request is successful, PF will reset the VF and
2506 * return 0. If unsuccessful, PF will send message informing VF of number of
2507 * available queues and return result of sending VF a message.
2508 **/
2509static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
2510{
2511 struct virtchnl_vf_res_request *vfres =
2512 (struct virtchnl_vf_res_request *)msg;
2513 u16 req_pairs = vfres->num_queue_pairs;
2514 u8 cur_pairs = vf->num_queue_pairs;
2515 struct i40e_pf *pf = vf->pf;
2516
2517 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
2518 return -EINVAL;
2519
2520 if (req_pairs > I40E_MAX_VF_QUEUES) {
2521 dev_err(&pf->pdev->dev,
2522 "VF %d tried to request more than %d queues.\n",
2523 vf->vf_id,
2524 I40E_MAX_VF_QUEUES);
2525 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES;
2526 } else if (req_pairs - cur_pairs > pf->queues_left) {
2527 dev_warn(&pf->pdev->dev,
2528 "VF %d requested %d more queues, but only %d left.\n",
2529 vf->vf_id,
2530 req_pairs - cur_pairs,
2531 pf->queues_left);
2532 vfres->num_queue_pairs = pf->queues_left + cur_pairs;
2533 } else {
2534 /* successful request */
2535 vf->num_req_queues = req_pairs;
2536 i40e_vc_notify_vf_reset(vf);
2537 i40e_reset_vf(vf, false);
2538 return 0;
2539 }
2540
2541 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0,
2542 (u8 *)vfres, sizeof(*vfres));
2543}
2544
2545/**
2546 * i40e_vc_get_stats_msg
2547 * @vf: pointer to the VF info
2548 * @msg: pointer to the msg buffer
2549 *
2550 * called from the VF to get vsi stats
2551 **/
2552static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg)
2553{
2554 struct virtchnl_queue_select *vqs =
2555 (struct virtchnl_queue_select *)msg;
2556 struct i40e_pf *pf = vf->pf;
2557 struct i40e_eth_stats stats;
2558 i40e_status aq_ret = 0;
2559 struct i40e_vsi *vsi;
2560
2561 memset(&stats, 0, sizeof(struct i40e_eth_stats));
2562
2563 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2564 aq_ret = I40E_ERR_PARAM;
2565 goto error_param;
2566 }
2567
2568 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2569 aq_ret = I40E_ERR_PARAM;
2570 goto error_param;
2571 }
2572
2573 vsi = pf->vsi[vf->lan_vsi_idx];
2574 if (!vsi) {
2575 aq_ret = I40E_ERR_PARAM;
2576 goto error_param;
2577 }
2578 i40e_update_eth_stats(vsi);
2579 stats = vsi->eth_stats;
2580
2581error_param:
2582 /* send the response back to the VF */
2583 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret,
2584 (u8 *)&stats, sizeof(stats));
2585}
2586
2587/* If the VF is not trusted restrict the number of MAC/VLAN it can program
2588 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast
2589 */
2590#define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1)
2591#define I40E_VC_MAX_VLAN_PER_VF 16
2592
2593/**
2594 * i40e_check_vf_permission
2595 * @vf: pointer to the VF info
2596 * @al: MAC address list from virtchnl
2597 *
2598 * Check that the given list of MAC addresses is allowed. Will return -EPERM
2599 * if any address in the list is not valid. Checks the following conditions:
2600 *
2601 * 1) broadcast and zero addresses are never valid
2602 * 2) unicast addresses are not allowed if the VMM has administratively set
2603 * the VF MAC address, unless the VF is marked as privileged.
2604 * 3) There is enough space to add all the addresses.
2605 *
2606 * Note that to guarantee consistency, it is expected this function be called
2607 * while holding the mac_filter_hash_lock, as otherwise the current number of
2608 * addresses might not be accurate.
2609 **/
2610static inline int i40e_check_vf_permission(struct i40e_vf *vf,
2611 struct virtchnl_ether_addr_list *al)
2612{
2613 struct i40e_pf *pf = vf->pf;
2614 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
2615 int mac2add_cnt = 0;
2616 int i;
2617
2618 for (i = 0; i < al->num_elements; i++) {
2619 struct i40e_mac_filter *f;
2620 u8 *addr = al->list[i].addr;
2621
2622 if (is_broadcast_ether_addr(addr) ||
2623 is_zero_ether_addr(addr)) {
2624 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
2625 addr);
2626 return I40E_ERR_INVALID_MAC_ADDR;
2627 }
2628
2629 /* If the host VMM administrator has set the VF MAC address
2630 * administratively via the ndo_set_vf_mac command then deny
2631 * permission to the VF to add or delete unicast MAC addresses.
2632 * Unless the VF is privileged and then it can do whatever.
2633 * The VF may request to set the MAC address filter already
2634 * assigned to it so do not return an error in that case.
2635 */
2636 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
2637 !is_multicast_ether_addr(addr) && vf->pf_set_mac &&
2638 !ether_addr_equal(addr, vf->default_lan_addr.addr)) {
2639 dev_err(&pf->pdev->dev,
2640 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
2641 return -EPERM;
2642 }
2643
2644 /*count filters that really will be added*/
2645 f = i40e_find_mac(vsi, addr);
2646 if (!f)
2647 ++mac2add_cnt;
2648 }
2649
2650 /* If this VF is not privileged, then we can't add more than a limited
2651 * number of addresses. Check to make sure that the additions do not
2652 * push us over the limit.
2653 */
2654 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
2655 (i40e_count_filters(vsi) + mac2add_cnt) >
2656 I40E_VC_MAX_MAC_ADDR_PER_VF) {
2657 dev_err(&pf->pdev->dev,
2658 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n");
2659 return -EPERM;
2660 }
2661 return 0;
2662}
2663
2664/**
2665 * i40e_vc_add_mac_addr_msg
2666 * @vf: pointer to the VF info
2667 * @msg: pointer to the msg buffer
2668 *
2669 * add guest mac address filter
2670 **/
2671static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
2672{
2673 struct virtchnl_ether_addr_list *al =
2674 (struct virtchnl_ether_addr_list *)msg;
2675 struct i40e_pf *pf = vf->pf;
2676 struct i40e_vsi *vsi = NULL;
2677 i40e_status ret = 0;
2678 int i;
2679
2680 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2681 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
2682 ret = I40E_ERR_PARAM;
2683 goto error_param;
2684 }
2685
2686 vsi = pf->vsi[vf->lan_vsi_idx];
2687
2688 /* Lock once, because all function inside for loop accesses VSI's
2689 * MAC filter list which needs to be protected using same lock.
2690 */
2691 spin_lock_bh(&vsi->mac_filter_hash_lock);
2692
2693 ret = i40e_check_vf_permission(vf, al);
2694 if (ret) {
2695 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2696 goto error_param;
2697 }
2698
2699 /* add new addresses to the list */
2700 for (i = 0; i < al->num_elements; i++) {
2701 struct i40e_mac_filter *f;
2702
2703 f = i40e_find_mac(vsi, al->list[i].addr);
2704 if (!f) {
2705 f = i40e_add_mac_filter(vsi, al->list[i].addr);
2706
2707 if (!f) {
2708 dev_err(&pf->pdev->dev,
2709 "Unable to add MAC filter %pM for VF %d\n",
2710 al->list[i].addr, vf->vf_id);
2711 ret = I40E_ERR_PARAM;
2712 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2713 goto error_param;
2714 }
2715 }
2716 }
2717 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2718
2719 /* program the updated filter list */
2720 ret = i40e_sync_vsi_filters(vsi);
2721 if (ret)
2722 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2723 vf->vf_id, ret);
2724
2725error_param:
2726 /* send the response to the VF */
2727 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
2728 ret);
2729}
2730
2731/**
2732 * i40e_vc_del_mac_addr_msg
2733 * @vf: pointer to the VF info
2734 * @msg: pointer to the msg buffer
2735 *
2736 * remove guest mac address filter
2737 **/
2738static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
2739{
2740 struct virtchnl_ether_addr_list *al =
2741 (struct virtchnl_ether_addr_list *)msg;
2742 struct i40e_pf *pf = vf->pf;
2743 struct i40e_vsi *vsi = NULL;
2744 i40e_status ret = 0;
2745 int i;
2746
2747 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2748 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
2749 ret = I40E_ERR_PARAM;
2750 goto error_param;
2751 }
2752
2753 for (i = 0; i < al->num_elements; i++) {
2754 if (is_broadcast_ether_addr(al->list[i].addr) ||
2755 is_zero_ether_addr(al->list[i].addr)) {
2756 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
2757 al->list[i].addr, vf->vf_id);
2758 ret = I40E_ERR_INVALID_MAC_ADDR;
2759 goto error_param;
2760 }
2761 }
2762 vsi = pf->vsi[vf->lan_vsi_idx];
2763
2764 spin_lock_bh(&vsi->mac_filter_hash_lock);
2765 /* delete addresses from the list */
2766 for (i = 0; i < al->num_elements; i++)
2767 if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
2768 ret = I40E_ERR_INVALID_MAC_ADDR;
2769 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2770 goto error_param;
2771 }
2772
2773 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2774
2775 /* program the updated filter list */
2776 ret = i40e_sync_vsi_filters(vsi);
2777 if (ret)
2778 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2779 vf->vf_id, ret);
2780
2781error_param:
2782 /* send the response to the VF */
2783 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR,
2784 ret);
2785}
2786
2787/**
2788 * i40e_vc_add_vlan_msg
2789 * @vf: pointer to the VF info
2790 * @msg: pointer to the msg buffer
2791 *
2792 * program guest vlan id
2793 **/
2794static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg)
2795{
2796 struct virtchnl_vlan_filter_list *vfl =
2797 (struct virtchnl_vlan_filter_list *)msg;
2798 struct i40e_pf *pf = vf->pf;
2799 struct i40e_vsi *vsi = NULL;
2800 i40e_status aq_ret = 0;
2801 int i;
2802
2803 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
2804 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2805 dev_err(&pf->pdev->dev,
2806 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
2807 goto error_param;
2808 }
2809 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2810 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
2811 aq_ret = I40E_ERR_PARAM;
2812 goto error_param;
2813 }
2814
2815 for (i = 0; i < vfl->num_elements; i++) {
2816 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2817 aq_ret = I40E_ERR_PARAM;
2818 dev_err(&pf->pdev->dev,
2819 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
2820 goto error_param;
2821 }
2822 }
2823 vsi = pf->vsi[vf->lan_vsi_idx];
2824 if (vsi->info.pvid) {
2825 aq_ret = I40E_ERR_PARAM;
2826 goto error_param;
2827 }
2828
2829 i40e_vlan_stripping_enable(vsi);
2830 for (i = 0; i < vfl->num_elements; i++) {
2831 /* add new VLAN filter */
2832 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
2833 if (!ret)
2834 vf->num_vlan++;
2835
2836 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
2837 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2838 true,
2839 vfl->vlan_id[i],
2840 NULL);
2841 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
2842 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2843 true,
2844 vfl->vlan_id[i],
2845 NULL);
2846
2847 if (ret)
2848 dev_err(&pf->pdev->dev,
2849 "Unable to add VLAN filter %d for VF %d, error %d\n",
2850 vfl->vlan_id[i], vf->vf_id, ret);
2851 }
2852
2853error_param:
2854 /* send the response to the VF */
2855 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret);
2856}
2857
2858/**
2859 * i40e_vc_remove_vlan_msg
2860 * @vf: pointer to the VF info
2861 * @msg: pointer to the msg buffer
2862 *
2863 * remove programmed guest vlan id
2864 **/
2865static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg)
2866{
2867 struct virtchnl_vlan_filter_list *vfl =
2868 (struct virtchnl_vlan_filter_list *)msg;
2869 struct i40e_pf *pf = vf->pf;
2870 struct i40e_vsi *vsi = NULL;
2871 i40e_status aq_ret = 0;
2872 int i;
2873
2874 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2875 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
2876 aq_ret = I40E_ERR_PARAM;
2877 goto error_param;
2878 }
2879
2880 for (i = 0; i < vfl->num_elements; i++) {
2881 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2882 aq_ret = I40E_ERR_PARAM;
2883 goto error_param;
2884 }
2885 }
2886
2887 vsi = pf->vsi[vf->lan_vsi_idx];
2888 if (vsi->info.pvid) {
2889 if (vfl->num_elements > 1 || vfl->vlan_id[0])
2890 aq_ret = I40E_ERR_PARAM;
2891 goto error_param;
2892 }
2893
2894 for (i = 0; i < vfl->num_elements; i++) {
2895 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
2896 vf->num_vlan--;
2897
2898 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
2899 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2900 false,
2901 vfl->vlan_id[i],
2902 NULL);
2903 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
2904 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2905 false,
2906 vfl->vlan_id[i],
2907 NULL);
2908 }
2909
2910error_param:
2911 /* send the response to the VF */
2912 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret);
2913}
2914
2915/**
2916 * i40e_vc_iwarp_msg
2917 * @vf: pointer to the VF info
2918 * @msg: pointer to the msg buffer
2919 * @msglen: msg length
2920 *
2921 * called from the VF for the iwarp msgs
2922 **/
2923static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2924{
2925 struct i40e_pf *pf = vf->pf;
2926 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
2927 i40e_status aq_ret = 0;
2928
2929 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2930 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
2931 aq_ret = I40E_ERR_PARAM;
2932 goto error_param;
2933 }
2934
2935 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
2936 msg, msglen);
2937
2938error_param:
2939 /* send the response to the VF */
2940 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP,
2941 aq_ret);
2942}
2943
2944/**
2945 * i40e_vc_iwarp_qvmap_msg
2946 * @vf: pointer to the VF info
2947 * @msg: pointer to the msg buffer
2948 * @config: config qvmap or release it
2949 *
2950 * called from the VF for the iwarp msgs
2951 **/
2952static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config)
2953{
2954 struct virtchnl_iwarp_qvlist_info *qvlist_info =
2955 (struct virtchnl_iwarp_qvlist_info *)msg;
2956 i40e_status aq_ret = 0;
2957
2958 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2959 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
2960 aq_ret = I40E_ERR_PARAM;
2961 goto error_param;
2962 }
2963
2964 if (config) {
2965 if (i40e_config_iwarp_qvlist(vf, qvlist_info))
2966 aq_ret = I40E_ERR_PARAM;
2967 } else {
2968 i40e_release_iwarp_qvlist(vf);
2969 }
2970
2971error_param:
2972 /* send the response to the VF */
2973 return i40e_vc_send_resp_to_vf(vf,
2974 config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP :
2975 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP,
2976 aq_ret);
2977}
2978
2979/**
2980 * i40e_vc_config_rss_key
2981 * @vf: pointer to the VF info
2982 * @msg: pointer to the msg buffer
2983 *
2984 * Configure the VF's RSS key
2985 **/
2986static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg)
2987{
2988 struct virtchnl_rss_key *vrk =
2989 (struct virtchnl_rss_key *)msg;
2990 struct i40e_pf *pf = vf->pf;
2991 struct i40e_vsi *vsi = NULL;
2992 i40e_status aq_ret = 0;
2993
2994 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2995 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) ||
2996 (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) {
2997 aq_ret = I40E_ERR_PARAM;
2998 goto err;
2999 }
3000
3001 vsi = pf->vsi[vf->lan_vsi_idx];
3002 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
3003err:
3004 /* send the response to the VF */
3005 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY,
3006 aq_ret);
3007}
3008
3009/**
3010 * i40e_vc_config_rss_lut
3011 * @vf: pointer to the VF info
3012 * @msg: pointer to the msg buffer
3013 *
3014 * Configure the VF's RSS LUT
3015 **/
3016static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg)
3017{
3018 struct virtchnl_rss_lut *vrl =
3019 (struct virtchnl_rss_lut *)msg;
3020 struct i40e_pf *pf = vf->pf;
3021 struct i40e_vsi *vsi = NULL;
3022 i40e_status aq_ret = 0;
3023 u16 i;
3024
3025 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3026 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) ||
3027 (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) {
3028 aq_ret = I40E_ERR_PARAM;
3029 goto err;
3030 }
3031
3032 for (i = 0; i < vrl->lut_entries; i++)
3033 if (vrl->lut[i] >= vf->num_queue_pairs) {
3034 aq_ret = I40E_ERR_PARAM;
3035 goto err;
3036 }
3037
3038 vsi = pf->vsi[vf->lan_vsi_idx];
3039 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
3040 /* send the response to the VF */
3041err:
3042 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT,
3043 aq_ret);
3044}
3045
3046/**
3047 * i40e_vc_get_rss_hena
3048 * @vf: pointer to the VF info
3049 * @msg: pointer to the msg buffer
3050 *
3051 * Return the RSS HENA bits allowed by the hardware
3052 **/
3053static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg)
3054{
3055 struct virtchnl_rss_hena *vrh = NULL;
3056 struct i40e_pf *pf = vf->pf;
3057 i40e_status aq_ret = 0;
3058 int len = 0;
3059
3060 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3061 aq_ret = I40E_ERR_PARAM;
3062 goto err;
3063 }
3064 len = sizeof(struct virtchnl_rss_hena);
3065
3066 vrh = kzalloc(len, GFP_KERNEL);
3067 if (!vrh) {
3068 aq_ret = I40E_ERR_NO_MEMORY;
3069 len = 0;
3070 goto err;
3071 }
3072 vrh->hena = i40e_pf_get_default_rss_hena(pf);
3073err:
3074 /* send the response back to the VF */
3075 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS,
3076 aq_ret, (u8 *)vrh, len);
3077 kfree(vrh);
3078 return aq_ret;
3079}
3080
3081/**
3082 * i40e_vc_set_rss_hena
3083 * @vf: pointer to the VF info
3084 * @msg: pointer to the msg buffer
3085 *
3086 * Set the RSS HENA bits for the VF
3087 **/
3088static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg)
3089{
3090 struct virtchnl_rss_hena *vrh =
3091 (struct virtchnl_rss_hena *)msg;
3092 struct i40e_pf *pf = vf->pf;
3093 struct i40e_hw *hw = &pf->hw;
3094 i40e_status aq_ret = 0;
3095
3096 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3097 aq_ret = I40E_ERR_PARAM;
3098 goto err;
3099 }
3100 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);
3101 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
3102 (u32)(vrh->hena >> 32));
3103
3104 /* send the response to the VF */
3105err:
3106 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret);
3107}
3108
3109/**
3110 * i40e_vc_enable_vlan_stripping
3111 * @vf: pointer to the VF info
3112 * @msg: pointer to the msg buffer
3113 *
3114 * Enable vlan header stripping for the VF
3115 **/
3116static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3117{
3118 i40e_status aq_ret = 0;
3119 struct i40e_vsi *vsi;
3120
3121 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3122 aq_ret = I40E_ERR_PARAM;
3123 goto err;
3124 }
3125
3126 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3127 i40e_vlan_stripping_enable(vsi);
3128
3129 /* send the response to the VF */
3130err:
3131 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
3132 aq_ret);
3133}
3134
3135/**
3136 * i40e_vc_disable_vlan_stripping
3137 * @vf: pointer to the VF info
3138 * @msg: pointer to the msg buffer
3139 *
3140 * Disable vlan header stripping for the VF
3141 **/
3142static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3143{
3144 i40e_status aq_ret = 0;
3145 struct i40e_vsi *vsi;
3146
3147 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3148 aq_ret = I40E_ERR_PARAM;
3149 goto err;
3150 }
3151
3152 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3153 i40e_vlan_stripping_disable(vsi);
3154
3155 /* send the response to the VF */
3156err:
3157 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
3158 aq_ret);
3159}
3160
3161/**
3162 * i40e_validate_cloud_filter
3163 * @mask: mask for TC filter
3164 * @data: data for TC filter
3165 *
3166 * This function validates cloud filter programmed as TC filter for ADq
3167 **/
3168static int i40e_validate_cloud_filter(struct i40e_vf *vf,
3169 struct virtchnl_filter *tc_filter)
3170{
3171 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec;
3172 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec;
3173 struct i40e_pf *pf = vf->pf;
3174 struct i40e_vsi *vsi = NULL;
3175 struct i40e_mac_filter *f;
3176 struct hlist_node *h;
3177 bool found = false;
3178 int bkt;
3179
3180 if (!tc_filter->action) {
3181 dev_info(&pf->pdev->dev,
3182 "VF %d: Currently ADq doesn't support Drop Action\n",
3183 vf->vf_id);
3184 goto err;
3185 }
3186
3187 /* action_meta is TC number here to which the filter is applied */
3188 if (!tc_filter->action_meta ||
3189 tc_filter->action_meta > I40E_MAX_VF_VSI) {
3190 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n",
3191 vf->vf_id, tc_filter->action_meta);
3192 goto err;
3193 }
3194
3195 /* Check filter if it's programmed for advanced mode or basic mode.
3196 * There are two ADq modes (for VF only),
3197 * 1. Basic mode: intended to allow as many filter options as possible
3198 * to be added to a VF in Non-trusted mode. Main goal is
3199 * to add filters to its own MAC and VLAN id.
3200 * 2. Advanced mode: is for allowing filters to be applied other than
3201 * its own MAC or VLAN. This mode requires the VF to be
3202 * Trusted.
3203 */
3204 if (mask.dst_mac[0] && !mask.dst_ip[0]) {
3205 vsi = pf->vsi[vf->lan_vsi_idx];
3206 f = i40e_find_mac(vsi, data.dst_mac);
3207
3208 if (!f) {
3209 dev_info(&pf->pdev->dev,
3210 "Destination MAC %pM doesn't belong to VF %d\n",
3211 data.dst_mac, vf->vf_id);
3212 goto err;
3213 }
3214
3215 if (mask.vlan_id) {
3216 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f,
3217 hlist) {
3218 if (f->vlan == ntohs(data.vlan_id)) {
3219 found = true;
3220 break;
3221 }
3222 }
3223 if (!found) {
3224 dev_info(&pf->pdev->dev,
3225 "VF %d doesn't have any VLAN id %u\n",
3226 vf->vf_id, ntohs(data.vlan_id));
3227 goto err;
3228 }
3229 }
3230 } else {
3231 /* Check if VF is trusted */
3232 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3233 dev_err(&pf->pdev->dev,
3234 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n",
3235 vf->vf_id);
3236 return I40E_ERR_CONFIG;
3237 }
3238 }
3239
3240 if (mask.dst_mac[0] & data.dst_mac[0]) {
3241 if (is_broadcast_ether_addr(data.dst_mac) ||
3242 is_zero_ether_addr(data.dst_mac)) {
3243 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n",
3244 vf->vf_id, data.dst_mac);
3245 goto err;
3246 }
3247 }
3248
3249 if (mask.src_mac[0] & data.src_mac[0]) {
3250 if (is_broadcast_ether_addr(data.src_mac) ||
3251 is_zero_ether_addr(data.src_mac)) {
3252 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n",
3253 vf->vf_id, data.src_mac);
3254 goto err;
3255 }
3256 }
3257
3258 if (mask.dst_port & data.dst_port) {
3259 if (!data.dst_port) {
3260 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n",
3261 vf->vf_id);
3262 goto err;
3263 }
3264 }
3265
3266 if (mask.src_port & data.src_port) {
3267 if (!data.src_port) {
3268 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n",
3269 vf->vf_id);
3270 goto err;
3271 }
3272 }
3273
3274 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW &&
3275 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) {
3276 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n",
3277 vf->vf_id);
3278 goto err;
3279 }
3280
3281 if (mask.vlan_id & data.vlan_id) {
3282 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) {
3283 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n",
3284 vf->vf_id);
3285 goto err;
3286 }
3287 }
3288
3289 return I40E_SUCCESS;
3290err:
3291 return I40E_ERR_CONFIG;
3292}
3293
3294/**
3295 * i40e_find_vsi_from_seid - searches for the vsi with the given seid
3296 * @vf: pointer to the VF info
3297 * @seid - seid of the vsi it is searching for
3298 **/
3299static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid)
3300{
3301 struct i40e_pf *pf = vf->pf;
3302 struct i40e_vsi *vsi = NULL;
3303 int i;
3304
3305 for (i = 0; i < vf->num_tc ; i++) {
3306 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id);
3307 if (vsi && vsi->seid == seid)
3308 return vsi;
3309 }
3310 return NULL;
3311}
3312
3313/**
3314 * i40e_del_all_cloud_filters
3315 * @vf: pointer to the VF info
3316 *
3317 * This function deletes all cloud filters
3318 **/
3319static void i40e_del_all_cloud_filters(struct i40e_vf *vf)
3320{
3321 struct i40e_cloud_filter *cfilter = NULL;
3322 struct i40e_pf *pf = vf->pf;
3323 struct i40e_vsi *vsi = NULL;
3324 struct hlist_node *node;
3325 int ret;
3326
3327 hlist_for_each_entry_safe(cfilter, node,
3328 &vf->cloud_filter_list, cloud_node) {
3329 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid);
3330
3331 if (!vsi) {
3332 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n",
3333 vf->vf_id, cfilter->seid);
3334 continue;
3335 }
3336
3337 if (cfilter->dst_port)
3338 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter,
3339 false);
3340 else
3341 ret = i40e_add_del_cloud_filter(vsi, cfilter, false);
3342 if (ret)
3343 dev_err(&pf->pdev->dev,
3344 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n",
3345 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3346 i40e_aq_str(&pf->hw,
3347 pf->hw.aq.asq_last_status));
3348
3349 hlist_del(&cfilter->cloud_node);
3350 kfree(cfilter);
3351 vf->num_cloud_filters--;
3352 }
3353}
3354
3355/**
3356 * i40e_vc_del_cloud_filter
3357 * @vf: pointer to the VF info
3358 * @msg: pointer to the msg buffer
3359 *
3360 * This function deletes a cloud filter programmed as TC filter for ADq
3361 **/
3362static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg)
3363{
3364 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3365 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3366 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3367 struct i40e_cloud_filter cfilter, *cf = NULL;
3368 struct i40e_pf *pf = vf->pf;
3369 struct i40e_vsi *vsi = NULL;
3370 struct hlist_node *node;
3371 i40e_status aq_ret = 0;
3372 int i, ret;
3373
3374 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3375 aq_ret = I40E_ERR_PARAM;
3376 goto err;
3377 }
3378
3379 if (!vf->adq_enabled) {
3380 dev_info(&pf->pdev->dev,
3381 "VF %d: ADq not enabled, can't apply cloud filter\n",
3382 vf->vf_id);
3383 aq_ret = I40E_ERR_PARAM;
3384 goto err;
3385 }
3386
3387 if (i40e_validate_cloud_filter(vf, vcf)) {
3388 dev_info(&pf->pdev->dev,
3389 "VF %d: Invalid input, can't apply cloud filter\n",
3390 vf->vf_id);
3391 aq_ret = I40E_ERR_PARAM;
3392 goto err;
3393 }
3394
3395 memset(&cfilter, 0, sizeof(cfilter));
3396 /* parse destination mac address */
3397 for (i = 0; i < ETH_ALEN; i++)
3398 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3399
3400 /* parse source mac address */
3401 for (i = 0; i < ETH_ALEN; i++)
3402 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3403
3404 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id;
3405 cfilter.dst_port = mask.dst_port & tcf.dst_port;
3406 cfilter.src_port = mask.src_port & tcf.src_port;
3407
3408 switch (vcf->flow_type) {
3409 case VIRTCHNL_TCP_V4_FLOW:
3410 cfilter.n_proto = ETH_P_IP;
3411 if (mask.dst_ip[0] & tcf.dst_ip[0])
3412 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip,
3413 ARRAY_SIZE(tcf.dst_ip));
3414 else if (mask.src_ip[0] & tcf.dst_ip[0])
3415 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip,
3416 ARRAY_SIZE(tcf.dst_ip));
3417 break;
3418 case VIRTCHNL_TCP_V6_FLOW:
3419 cfilter.n_proto = ETH_P_IPV6;
3420 if (mask.dst_ip[3] & tcf.dst_ip[3])
3421 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip,
3422 sizeof(cfilter.ip.v6.dst_ip6));
3423 if (mask.src_ip[3] & tcf.src_ip[3])
3424 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip,
3425 sizeof(cfilter.ip.v6.src_ip6));
3426 break;
3427 default:
3428 /* TC filter can be configured based on different combinations
3429 * and in this case IP is not a part of filter config
3430 */
3431 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3432 vf->vf_id);
3433 }
3434
3435 /* get the vsi to which the tc belongs to */
3436 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3437 cfilter.seid = vsi->seid;
3438 cfilter.flags = vcf->field_flags;
3439
3440 /* Deleting TC filter */
3441 if (tcf.dst_port)
3442 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false);
3443 else
3444 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false);
3445 if (ret) {
3446 dev_err(&pf->pdev->dev,
3447 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n",
3448 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3449 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3450 goto err;
3451 }
3452
3453 hlist_for_each_entry_safe(cf, node,
3454 &vf->cloud_filter_list, cloud_node) {
3455 if (cf->seid != cfilter.seid)
3456 continue;
3457 if (mask.dst_port)
3458 if (cfilter.dst_port != cf->dst_port)
3459 continue;
3460 if (mask.dst_mac[0])
3461 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac))
3462 continue;
3463 /* for ipv4 data to be valid, only first byte of mask is set */
3464 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0])
3465 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip,
3466 ARRAY_SIZE(tcf.dst_ip)))
3467 continue;
3468 /* for ipv6, mask is set for all sixteen bytes (4 words) */
3469 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3])
3470 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6,
3471 sizeof(cfilter.ip.v6.src_ip6)))
3472 continue;
3473 if (mask.vlan_id)
3474 if (cfilter.vlan_id != cf->vlan_id)
3475 continue;
3476
3477 hlist_del(&cf->cloud_node);
3478 kfree(cf);
3479 vf->num_cloud_filters--;
3480 }
3481
3482err:
3483 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER,
3484 aq_ret);
3485}
3486
3487/**
3488 * i40e_vc_add_cloud_filter
3489 * @vf: pointer to the VF info
3490 * @msg: pointer to the msg buffer
3491 *
3492 * This function adds a cloud filter programmed as TC filter for ADq
3493 **/
3494static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
3495{
3496 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3497 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3498 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3499 struct i40e_cloud_filter *cfilter = NULL;
3500 struct i40e_pf *pf = vf->pf;
3501 struct i40e_vsi *vsi = NULL;
3502 i40e_status aq_ret = 0;
3503 int i, ret;
3504
3505 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3506 aq_ret = I40E_ERR_PARAM;
3507 goto err_out;
3508 }
3509
3510 if (!vf->adq_enabled) {
3511 dev_info(&pf->pdev->dev,
3512 "VF %d: ADq is not enabled, can't apply cloud filter\n",
3513 vf->vf_id);
3514 aq_ret = I40E_ERR_PARAM;
3515 goto err_out;
3516 }
3517
3518 if (i40e_validate_cloud_filter(vf, vcf)) {
3519 dev_info(&pf->pdev->dev,
3520 "VF %d: Invalid input/s, can't apply cloud filter\n",
3521 vf->vf_id);
3522 aq_ret = I40E_ERR_PARAM;
3523 goto err_out;
3524 }
3525
3526 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL);
3527 if (!cfilter)
3528 return -ENOMEM;
3529
3530 /* parse destination mac address */
3531 for (i = 0; i < ETH_ALEN; i++)
3532 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3533
3534 /* parse source mac address */
3535 for (i = 0; i < ETH_ALEN; i++)
3536 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3537
3538 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id;
3539 cfilter->dst_port = mask.dst_port & tcf.dst_port;
3540 cfilter->src_port = mask.src_port & tcf.src_port;
3541
3542 switch (vcf->flow_type) {
3543 case VIRTCHNL_TCP_V4_FLOW:
3544 cfilter->n_proto = ETH_P_IP;
3545 if (mask.dst_ip[0] & tcf.dst_ip[0])
3546 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip,
3547 ARRAY_SIZE(tcf.dst_ip));
3548 else if (mask.src_ip[0] & tcf.dst_ip[0])
3549 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip,
3550 ARRAY_SIZE(tcf.dst_ip));
3551 break;
3552 case VIRTCHNL_TCP_V6_FLOW:
3553 cfilter->n_proto = ETH_P_IPV6;
3554 if (mask.dst_ip[3] & tcf.dst_ip[3])
3555 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip,
3556 sizeof(cfilter->ip.v6.dst_ip6));
3557 if (mask.src_ip[3] & tcf.src_ip[3])
3558 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip,
3559 sizeof(cfilter->ip.v6.src_ip6));
3560 break;
3561 default:
3562 /* TC filter can be configured based on different combinations
3563 * and in this case IP is not a part of filter config
3564 */
3565 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3566 vf->vf_id);
3567 }
3568
3569 /* get the VSI to which the TC belongs to */
3570 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3571 cfilter->seid = vsi->seid;
3572 cfilter->flags = vcf->field_flags;
3573
3574 /* Adding cloud filter programmed as TC filter */
3575 if (tcf.dst_port)
3576 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true);
3577 else
3578 ret = i40e_add_del_cloud_filter(vsi, cfilter, true);
3579 if (ret) {
3580 dev_err(&pf->pdev->dev,
3581 "VF %d: Failed to add cloud filter, err %s aq_err %s\n",
3582 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3583 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3584 goto err_free;
3585 }
3586
3587 INIT_HLIST_NODE(&cfilter->cloud_node);
3588 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list);
3589 /* release the pointer passing it to the collection */
3590 cfilter = NULL;
3591 vf->num_cloud_filters++;
3592err_free:
3593 kfree(cfilter);
3594err_out:
3595 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER,
3596 aq_ret);
3597}
3598
3599/**
3600 * i40e_vc_add_qch_msg: Add queue channel and enable ADq
3601 * @vf: pointer to the VF info
3602 * @msg: pointer to the msg buffer
3603 **/
3604static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
3605{
3606 struct virtchnl_tc_info *tci =
3607 (struct virtchnl_tc_info *)msg;
3608 struct i40e_pf *pf = vf->pf;
3609 struct i40e_link_status *ls = &pf->hw.phy.link_info;
3610 int i, adq_request_qps = 0;
3611 i40e_status aq_ret = 0;
3612 u64 speed = 0;
3613
3614 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3615 aq_ret = I40E_ERR_PARAM;
3616 goto err;
3617 }
3618
3619 /* ADq cannot be applied if spoof check is ON */
3620 if (vf->spoofchk) {
3621 dev_err(&pf->pdev->dev,
3622 "Spoof check is ON, turn it OFF to enable ADq\n");
3623 aq_ret = I40E_ERR_PARAM;
3624 goto err;
3625 }
3626
3627 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) {
3628 dev_err(&pf->pdev->dev,
3629 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n",
3630 vf->vf_id);
3631 aq_ret = I40E_ERR_PARAM;
3632 goto err;
3633 }
3634
3635 /* max number of traffic classes for VF currently capped at 4 */
3636 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) {
3637 dev_err(&pf->pdev->dev,
3638 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n",
3639 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI);
3640 aq_ret = I40E_ERR_PARAM;
3641 goto err;
3642 }
3643
3644 /* validate queues for each TC */
3645 for (i = 0; i < tci->num_tc; i++)
3646 if (!tci->list[i].count ||
3647 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) {
3648 dev_err(&pf->pdev->dev,
3649 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n",
3650 vf->vf_id, i, tci->list[i].count,
3651 I40E_DEFAULT_QUEUES_PER_VF);
3652 aq_ret = I40E_ERR_PARAM;
3653 goto err;
3654 }
3655
3656 /* need Max VF queues but already have default number of queues */
3657 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF;
3658
3659 if (pf->queues_left < adq_request_qps) {
3660 dev_err(&pf->pdev->dev,
3661 "No queues left to allocate to VF %d\n",
3662 vf->vf_id);
3663 aq_ret = I40E_ERR_PARAM;
3664 goto err;
3665 } else {
3666 /* we need to allocate max VF queues to enable ADq so as to
3667 * make sure ADq enabled VF always gets back queues when it
3668 * goes through a reset.
3669 */
3670 vf->num_queue_pairs = I40E_MAX_VF_QUEUES;
3671 }
3672
3673 /* get link speed in MB to validate rate limit */
3674 switch (ls->link_speed) {
3675 case VIRTCHNL_LINK_SPEED_100MB:
3676 speed = SPEED_100;
3677 break;
3678 case VIRTCHNL_LINK_SPEED_1GB:
3679 speed = SPEED_1000;
3680 break;
3681 case VIRTCHNL_LINK_SPEED_10GB:
3682 speed = SPEED_10000;
3683 break;
3684 case VIRTCHNL_LINK_SPEED_20GB:
3685 speed = SPEED_20000;
3686 break;
3687 case VIRTCHNL_LINK_SPEED_25GB:
3688 speed = SPEED_25000;
3689 break;
3690 case VIRTCHNL_LINK_SPEED_40GB:
3691 speed = SPEED_40000;
3692 break;
3693 default:
3694 dev_err(&pf->pdev->dev,
3695 "Cannot detect link speed\n");
3696 aq_ret = I40E_ERR_PARAM;
3697 goto err;
3698 }
3699
3700 /* parse data from the queue channel info */
3701 vf->num_tc = tci->num_tc;
3702 for (i = 0; i < vf->num_tc; i++) {
3703 if (tci->list[i].max_tx_rate) {
3704 if (tci->list[i].max_tx_rate > speed) {
3705 dev_err(&pf->pdev->dev,
3706 "Invalid max tx rate %llu specified for VF %d.",
3707 tci->list[i].max_tx_rate,
3708 vf->vf_id);
3709 aq_ret = I40E_ERR_PARAM;
3710 goto err;
3711 } else {
3712 vf->ch[i].max_tx_rate =
3713 tci->list[i].max_tx_rate;
3714 }
3715 }
3716 vf->ch[i].num_qps = tci->list[i].count;
3717 }
3718
3719 /* set this flag only after making sure all inputs are sane */
3720 vf->adq_enabled = true;
3721 /* num_req_queues is set when user changes number of queues via ethtool
3722 * and this causes issue for default VSI(which depends on this variable)
3723 * when ADq is enabled, hence reset it.
3724 */
3725 vf->num_req_queues = 0;
3726
3727 /* reset the VF in order to allocate resources */
3728 i40e_vc_notify_vf_reset(vf);
3729 i40e_reset_vf(vf, false);
3730
3731 return I40E_SUCCESS;
3732
3733 /* send the response to the VF */
3734err:
3735 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS,
3736 aq_ret);
3737}
3738
3739/**
3740 * i40e_vc_del_qch_msg
3741 * @vf: pointer to the VF info
3742 * @msg: pointer to the msg buffer
3743 **/
3744static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
3745{
3746 struct i40e_pf *pf = vf->pf;
3747 i40e_status aq_ret = 0;
3748
3749 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3750 aq_ret = I40E_ERR_PARAM;
3751 goto err;
3752 }
3753
3754 if (vf->adq_enabled) {
3755 i40e_del_all_cloud_filters(vf);
3756 i40e_del_qch(vf);
3757 vf->adq_enabled = false;
3758 vf->num_tc = 0;
3759 dev_info(&pf->pdev->dev,
3760 "Deleting Queue Channels and cloud filters for ADq on VF %d\n",
3761 vf->vf_id);
3762 } else {
3763 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n",
3764 vf->vf_id);
3765 aq_ret = I40E_ERR_PARAM;
3766 }
3767
3768 /* reset the VF in order to allocate resources */
3769 i40e_vc_notify_vf_reset(vf);
3770 i40e_reset_vf(vf, false);
3771
3772 return I40E_SUCCESS;
3773
3774err:
3775 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS,
3776 aq_ret);
3777}
3778
3779/**
3780 * i40e_vc_process_vf_msg
3781 * @pf: pointer to the PF structure
3782 * @vf_id: source VF id
3783 * @v_opcode: operation code
3784 * @v_retval: unused return value code
3785 * @msg: pointer to the msg buffer
3786 * @msglen: msg length
3787 *
3788 * called from the common aeq/arq handler to
3789 * process request from VF
3790 **/
3791int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
3792 u32 __always_unused v_retval, u8 *msg, u16 msglen)
3793{
3794 struct i40e_hw *hw = &pf->hw;
3795 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
3796 struct i40e_vf *vf;
3797 int ret;
3798
3799 pf->vf_aq_requests++;
3800 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs)
3801 return -EINVAL;
3802 vf = &(pf->vf[local_vf_id]);
3803
3804 /* Check if VF is disabled. */
3805 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states))
3806 return I40E_ERR_PARAM;
3807
3808 /* perform basic checks on the msg */
3809 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
3810
3811 if (ret) {
3812 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
3813 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
3814 local_vf_id, v_opcode, msglen);
3815 switch (ret) {
3816 case VIRTCHNL_STATUS_ERR_PARAM:
3817 return -EPERM;
3818 default:
3819 return -EINVAL;
3820 }
3821 }
3822
3823 switch (v_opcode) {
3824 case VIRTCHNL_OP_VERSION:
3825 ret = i40e_vc_get_version_msg(vf, msg);
3826 break;
3827 case VIRTCHNL_OP_GET_VF_RESOURCES:
3828 ret = i40e_vc_get_vf_resources_msg(vf, msg);
3829 i40e_vc_notify_vf_link_state(vf);
3830 break;
3831 case VIRTCHNL_OP_RESET_VF:
3832 i40e_vc_reset_vf_msg(vf);
3833 ret = 0;
3834 break;
3835 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
3836 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg);
3837 break;
3838 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
3839 ret = i40e_vc_config_queues_msg(vf, msg);
3840 break;
3841 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
3842 ret = i40e_vc_config_irq_map_msg(vf, msg);
3843 break;
3844 case VIRTCHNL_OP_ENABLE_QUEUES:
3845 ret = i40e_vc_enable_queues_msg(vf, msg);
3846 i40e_vc_notify_vf_link_state(vf);
3847 break;
3848 case VIRTCHNL_OP_DISABLE_QUEUES:
3849 ret = i40e_vc_disable_queues_msg(vf, msg);
3850 break;
3851 case VIRTCHNL_OP_ADD_ETH_ADDR:
3852 ret = i40e_vc_add_mac_addr_msg(vf, msg);
3853 break;
3854 case VIRTCHNL_OP_DEL_ETH_ADDR:
3855 ret = i40e_vc_del_mac_addr_msg(vf, msg);
3856 break;
3857 case VIRTCHNL_OP_ADD_VLAN:
3858 ret = i40e_vc_add_vlan_msg(vf, msg);
3859 break;
3860 case VIRTCHNL_OP_DEL_VLAN:
3861 ret = i40e_vc_remove_vlan_msg(vf, msg);
3862 break;
3863 case VIRTCHNL_OP_GET_STATS:
3864 ret = i40e_vc_get_stats_msg(vf, msg);
3865 break;
3866 case VIRTCHNL_OP_IWARP:
3867 ret = i40e_vc_iwarp_msg(vf, msg, msglen);
3868 break;
3869 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
3870 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true);
3871 break;
3872 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
3873 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false);
3874 break;
3875 case VIRTCHNL_OP_CONFIG_RSS_KEY:
3876 ret = i40e_vc_config_rss_key(vf, msg);
3877 break;
3878 case VIRTCHNL_OP_CONFIG_RSS_LUT:
3879 ret = i40e_vc_config_rss_lut(vf, msg);
3880 break;
3881 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
3882 ret = i40e_vc_get_rss_hena(vf, msg);
3883 break;
3884 case VIRTCHNL_OP_SET_RSS_HENA:
3885 ret = i40e_vc_set_rss_hena(vf, msg);
3886 break;
3887 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
3888 ret = i40e_vc_enable_vlan_stripping(vf, msg);
3889 break;
3890 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
3891 ret = i40e_vc_disable_vlan_stripping(vf, msg);
3892 break;
3893 case VIRTCHNL_OP_REQUEST_QUEUES:
3894 ret = i40e_vc_request_queues_msg(vf, msg);
3895 break;
3896 case VIRTCHNL_OP_ENABLE_CHANNELS:
3897 ret = i40e_vc_add_qch_msg(vf, msg);
3898 break;
3899 case VIRTCHNL_OP_DISABLE_CHANNELS:
3900 ret = i40e_vc_del_qch_msg(vf, msg);
3901 break;
3902 case VIRTCHNL_OP_ADD_CLOUD_FILTER:
3903 ret = i40e_vc_add_cloud_filter(vf, msg);
3904 break;
3905 case VIRTCHNL_OP_DEL_CLOUD_FILTER:
3906 ret = i40e_vc_del_cloud_filter(vf, msg);
3907 break;
3908 case VIRTCHNL_OP_UNKNOWN:
3909 default:
3910 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
3911 v_opcode, local_vf_id);
3912 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
3913 I40E_ERR_NOT_IMPLEMENTED);
3914 break;
3915 }
3916
3917 return ret;
3918}
3919
3920/**
3921 * i40e_vc_process_vflr_event
3922 * @pf: pointer to the PF structure
3923 *
3924 * called from the vlfr irq handler to
3925 * free up VF resources and state variables
3926 **/
3927int i40e_vc_process_vflr_event(struct i40e_pf *pf)
3928{
3929 struct i40e_hw *hw = &pf->hw;
3930 u32 reg, reg_idx, bit_idx;
3931 struct i40e_vf *vf;
3932 int vf_id;
3933
3934 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state))
3935 return 0;
3936
3937 /* Re-enable the VFLR interrupt cause here, before looking for which
3938 * VF got reset. Otherwise, if another VF gets a reset while the
3939 * first one is being processed, that interrupt will be lost, and
3940 * that VF will be stuck in reset forever.
3941 */
3942 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
3943 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
3944 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
3945 i40e_flush(hw);
3946
3947 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state);
3948 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
3949 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
3950 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
3951 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
3952 vf = &pf->vf[vf_id];
3953 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
3954 if (reg & BIT(bit_idx))
3955 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
3956 i40e_reset_vf(vf, true);
3957 }
3958
3959 return 0;
3960}
3961
3962/**
3963 * i40e_validate_vf
3964 * @pf: the physical function
3965 * @vf_id: VF identifier
3966 *
3967 * Check that the VF is enabled and the VSI exists.
3968 *
3969 * Returns 0 on success, negative on failure
3970 **/
3971static int i40e_validate_vf(struct i40e_pf *pf, int vf_id)
3972{
3973 struct i40e_vsi *vsi;
3974 struct i40e_vf *vf;
3975 int ret = 0;
3976
3977 if (vf_id >= pf->num_alloc_vfs) {
3978 dev_err(&pf->pdev->dev,
3979 "Invalid VF Identifier %d\n", vf_id);
3980 ret = -EINVAL;
3981 goto err_out;
3982 }
3983 vf = &pf->vf[vf_id];
3984 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id);
3985 if (!vsi)
3986 ret = -EINVAL;
3987err_out:
3988 return ret;
3989}
3990
3991/**
3992 * i40e_ndo_set_vf_mac
3993 * @netdev: network interface device structure
3994 * @vf_id: VF identifier
3995 * @mac: mac address
3996 *
3997 * program VF mac address
3998 **/
3999int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
4000{
4001 struct i40e_netdev_priv *np = netdev_priv(netdev);
4002 struct i40e_vsi *vsi = np->vsi;
4003 struct i40e_pf *pf = vsi->back;
4004 struct i40e_mac_filter *f;
4005 struct i40e_vf *vf;
4006 int ret = 0;
4007 struct hlist_node *h;
4008 int bkt;
4009 u8 i;
4010
4011 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4012 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4013 return -EAGAIN;
4014 }
4015
4016 /* validate the request */
4017 ret = i40e_validate_vf(pf, vf_id);
4018 if (ret)
4019 goto error_param;
4020
4021 vf = &pf->vf[vf_id];
4022 vsi = pf->vsi[vf->lan_vsi_idx];
4023
4024 /* When the VF is resetting wait until it is done.
4025 * It can take up to 200 milliseconds,
4026 * but wait for up to 300 milliseconds to be safe.
4027 * If the VF is indeed in reset, the vsi pointer has
4028 * to show on the newly loaded vsi under pf->vsi[id].
4029 */
4030 for (i = 0; i < 15; i++) {
4031 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4032 if (i > 0)
4033 vsi = pf->vsi[vf->lan_vsi_idx];
4034 break;
4035 }
4036 msleep(20);
4037 }
4038 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4039 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4040 vf_id);
4041 ret = -EAGAIN;
4042 goto error_param;
4043 }
4044
4045 if (is_multicast_ether_addr(mac)) {
4046 dev_err(&pf->pdev->dev,
4047 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
4048 ret = -EINVAL;
4049 goto error_param;
4050 }
4051
4052 /* Lock once because below invoked function add/del_filter requires
4053 * mac_filter_hash_lock to be held
4054 */
4055 spin_lock_bh(&vsi->mac_filter_hash_lock);
4056
4057 /* delete the temporary mac address */
4058 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
4059 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
4060
4061 /* Delete all the filters for this VSI - we're going to kill it
4062 * anyway.
4063 */
4064 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
4065 __i40e_del_filter(vsi, f);
4066
4067 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4068
4069 /* program mac filter */
4070 if (i40e_sync_vsi_filters(vsi)) {
4071 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
4072 ret = -EIO;
4073 goto error_param;
4074 }
4075 ether_addr_copy(vf->default_lan_addr.addr, mac);
4076
4077 if (is_zero_ether_addr(mac)) {
4078 vf->pf_set_mac = false;
4079 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id);
4080 } else {
4081 vf->pf_set_mac = true;
4082 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n",
4083 mac, vf_id);
4084 }
4085
4086 /* Force the VF interface down so it has to bring up with new MAC
4087 * address
4088 */
4089 i40e_vc_disable_vf(vf);
4090 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n");
4091
4092error_param:
4093 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4094 return ret;
4095}
4096
4097/**
4098 * i40e_vsi_has_vlans - True if VSI has configured VLANs
4099 * @vsi: pointer to the vsi
4100 *
4101 * Check if a VSI has configured any VLANs. False if we have a port VLAN or if
4102 * we have no configured VLANs. Do not call while holding the
4103 * mac_filter_hash_lock.
4104 */
4105static bool i40e_vsi_has_vlans(struct i40e_vsi *vsi)
4106{
4107 bool have_vlans;
4108
4109 /* If we have a port VLAN, then the VSI cannot have any VLANs
4110 * configured, as all MAC/VLAN filters will be assigned to the PVID.
4111 */
4112 if (vsi->info.pvid)
4113 return false;
4114
4115 /* Since we don't have a PVID, we know that if the device is in VLAN
4116 * mode it must be because of a VLAN filter configured on this VSI.
4117 */
4118 spin_lock_bh(&vsi->mac_filter_hash_lock);
4119 have_vlans = i40e_is_vsi_in_vlan(vsi);
4120 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4121
4122 return have_vlans;
4123}
4124
4125/**
4126 * i40e_ndo_set_vf_port_vlan
4127 * @netdev: network interface device structure
4128 * @vf_id: VF identifier
4129 * @vlan_id: mac address
4130 * @qos: priority setting
4131 * @vlan_proto: vlan protocol
4132 *
4133 * program VF vlan id and/or qos
4134 **/
4135int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
4136 u16 vlan_id, u8 qos, __be16 vlan_proto)
4137{
4138 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
4139 struct i40e_netdev_priv *np = netdev_priv(netdev);
4140 bool allmulti = false, alluni = false;
4141 struct i40e_pf *pf = np->vsi->back;
4142 struct i40e_vsi *vsi;
4143 struct i40e_vf *vf;
4144 int ret = 0;
4145
4146 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4147 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4148 return -EAGAIN;
4149 }
4150
4151 /* validate the request */
4152 ret = i40e_validate_vf(pf, vf_id);
4153 if (ret)
4154 goto error_pvid;
4155
4156 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
4157 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
4158 ret = -EINVAL;
4159 goto error_pvid;
4160 }
4161
4162 if (vlan_proto != htons(ETH_P_8021Q)) {
4163 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
4164 ret = -EPROTONOSUPPORT;
4165 goto error_pvid;
4166 }
4167
4168 vf = &pf->vf[vf_id];
4169 vsi = pf->vsi[vf->lan_vsi_idx];
4170 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4171 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4172 vf_id);
4173 ret = -EAGAIN;
4174 goto error_pvid;
4175 }
4176
4177 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
4178 /* duplicate request, so just return success */
4179 goto error_pvid;
4180
4181 if (i40e_vsi_has_vlans(vsi)) {
4182 dev_err(&pf->pdev->dev,
4183 "VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n",
4184 vf_id);
4185 /* Administrator Error - knock the VF offline until he does
4186 * the right thing by reconfiguring his network correctly
4187 * and then reloading the VF driver.
4188 */
4189 i40e_vc_disable_vf(vf);
4190 /* During reset the VF got a new VSI, so refresh the pointer. */
4191 vsi = pf->vsi[vf->lan_vsi_idx];
4192 }
4193
4194 /* Locked once because multiple functions below iterate list */
4195 spin_lock_bh(&vsi->mac_filter_hash_lock);
4196
4197 /* Check for condition where there was already a port VLAN ID
4198 * filter set and now it is being deleted by setting it to zero.
4199 * Additionally check for the condition where there was a port
4200 * VLAN but now there is a new and different port VLAN being set.
4201 * Before deleting all the old VLAN filters we must add new ones
4202 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
4203 * MAC addresses deleted.
4204 */
4205 if ((!(vlan_id || qos) ||
4206 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
4207 vsi->info.pvid) {
4208 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
4209 if (ret) {
4210 dev_info(&vsi->back->pdev->dev,
4211 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4212 vsi->back->hw.aq.asq_last_status);
4213 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4214 goto error_pvid;
4215 }
4216 }
4217
4218 if (vsi->info.pvid) {
4219 /* remove all filters on the old VLAN */
4220 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &
4221 VLAN_VID_MASK));
4222 }
4223
4224 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4225
4226 /* disable promisc modes in case they were enabled */
4227 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id,
4228 allmulti, alluni);
4229 if (ret) {
4230 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n");
4231 goto error_pvid;
4232 }
4233
4234 if (vlan_id || qos)
4235 ret = i40e_vsi_add_pvid(vsi, vlanprio);
4236 else
4237 i40e_vsi_remove_pvid(vsi);
4238 spin_lock_bh(&vsi->mac_filter_hash_lock);
4239
4240 if (vlan_id) {
4241 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
4242 vlan_id, qos, vf_id);
4243
4244 /* add new VLAN filter for each MAC */
4245 ret = i40e_add_vlan_all_mac(vsi, vlan_id);
4246 if (ret) {
4247 dev_info(&vsi->back->pdev->dev,
4248 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4249 vsi->back->hw.aq.asq_last_status);
4250 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4251 goto error_pvid;
4252 }
4253
4254 /* remove the previously added non-VLAN MAC filters */
4255 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
4256 }
4257
4258 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4259
4260 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
4261 alluni = true;
4262
4263 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
4264 allmulti = true;
4265
4266 /* Schedule the worker thread to take care of applying changes */
4267 i40e_service_event_schedule(vsi->back);
4268
4269 if (ret) {
4270 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
4271 goto error_pvid;
4272 }
4273
4274 /* The Port VLAN needs to be saved across resets the same as the
4275 * default LAN MAC address.
4276 */
4277 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
4278
4279 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni);
4280 if (ret) {
4281 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n");
4282 goto error_pvid;
4283 }
4284
4285 ret = 0;
4286
4287error_pvid:
4288 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4289 return ret;
4290}
4291
4292/**
4293 * i40e_ndo_set_vf_bw
4294 * @netdev: network interface device structure
4295 * @vf_id: VF identifier
4296 * @min_tx_rate: Minimum Tx rate
4297 * @max_tx_rate: Maximum Tx rate
4298 *
4299 * configure VF Tx rate
4300 **/
4301int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
4302 int max_tx_rate)
4303{
4304 struct i40e_netdev_priv *np = netdev_priv(netdev);
4305 struct i40e_pf *pf = np->vsi->back;
4306 struct i40e_vsi *vsi;
4307 struct i40e_vf *vf;
4308 int ret = 0;
4309
4310 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4311 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4312 return -EAGAIN;
4313 }
4314
4315 /* validate the request */
4316 ret = i40e_validate_vf(pf, vf_id);
4317 if (ret)
4318 goto error;
4319
4320 if (min_tx_rate) {
4321 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
4322 min_tx_rate, vf_id);
4323 ret = -EINVAL;
4324 goto error;
4325 }
4326
4327 vf = &pf->vf[vf_id];
4328 vsi = pf->vsi[vf->lan_vsi_idx];
4329 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4330 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4331 vf_id);
4332 ret = -EAGAIN;
4333 goto error;
4334 }
4335
4336 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate);
4337 if (ret)
4338 goto error;
4339
4340 vf->tx_rate = max_tx_rate;
4341error:
4342 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4343 return ret;
4344}
4345
4346/**
4347 * i40e_ndo_get_vf_config
4348 * @netdev: network interface device structure
4349 * @vf_id: VF identifier
4350 * @ivi: VF configuration structure
4351 *
4352 * return VF configuration
4353 **/
4354int i40e_ndo_get_vf_config(struct net_device *netdev,
4355 int vf_id, struct ifla_vf_info *ivi)
4356{
4357 struct i40e_netdev_priv *np = netdev_priv(netdev);
4358 struct i40e_vsi *vsi = np->vsi;
4359 struct i40e_pf *pf = vsi->back;
4360 struct i40e_vf *vf;
4361 int ret = 0;
4362
4363 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4364 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4365 return -EAGAIN;
4366 }
4367
4368 /* validate the request */
4369 ret = i40e_validate_vf(pf, vf_id);
4370 if (ret)
4371 goto error_param;
4372
4373 vf = &pf->vf[vf_id];
4374 /* first vsi is always the LAN vsi */
4375 vsi = pf->vsi[vf->lan_vsi_idx];
4376 if (!vsi) {
4377 ret = -ENOENT;
4378 goto error_param;
4379 }
4380
4381 ivi->vf = vf_id;
4382
4383 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
4384
4385 ivi->max_tx_rate = vf->tx_rate;
4386 ivi->min_tx_rate = 0;
4387 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
4388 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
4389 I40E_VLAN_PRIORITY_SHIFT;
4390 if (vf->link_forced == false)
4391 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
4392 else if (vf->link_up == true)
4393 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
4394 else
4395 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
4396 ivi->spoofchk = vf->spoofchk;
4397 ivi->trusted = vf->trusted;
4398 ret = 0;
4399
4400error_param:
4401 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4402 return ret;
4403}
4404
4405/**
4406 * i40e_ndo_set_vf_link_state
4407 * @netdev: network interface device structure
4408 * @vf_id: VF identifier
4409 * @link: required link state
4410 *
4411 * Set the link state of a specified VF, regardless of physical link state
4412 **/
4413int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
4414{
4415 struct i40e_netdev_priv *np = netdev_priv(netdev);
4416 struct i40e_pf *pf = np->vsi->back;
4417 struct virtchnl_pf_event pfe;
4418 struct i40e_hw *hw = &pf->hw;
4419 struct i40e_vf *vf;
4420 int abs_vf_id;
4421 int ret = 0;
4422
4423 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4424 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4425 return -EAGAIN;
4426 }
4427
4428 /* validate the request */
4429 if (vf_id >= pf->num_alloc_vfs) {
4430 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4431 ret = -EINVAL;
4432 goto error_out;
4433 }
4434
4435 vf = &pf->vf[vf_id];
4436 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
4437
4438 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
4439 pfe.severity = PF_EVENT_SEVERITY_INFO;
4440
4441 switch (link) {
4442 case IFLA_VF_LINK_STATE_AUTO:
4443 vf->link_forced = false;
4444 pfe.event_data.link_event.link_status =
4445 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
4446 pfe.event_data.link_event.link_speed =
4447 (enum virtchnl_link_speed)
4448 pf->hw.phy.link_info.link_speed;
4449 break;
4450 case IFLA_VF_LINK_STATE_ENABLE:
4451 vf->link_forced = true;
4452 vf->link_up = true;
4453 pfe.event_data.link_event.link_status = true;
4454 pfe.event_data.link_event.link_speed = VIRTCHNL_LINK_SPEED_40GB;
4455 break;
4456 case IFLA_VF_LINK_STATE_DISABLE:
4457 vf->link_forced = true;
4458 vf->link_up = false;
4459 pfe.event_data.link_event.link_status = false;
4460 pfe.event_data.link_event.link_speed = 0;
4461 break;
4462 default:
4463 ret = -EINVAL;
4464 goto error_out;
4465 }
4466 /* Notify the VF of its new link state */
4467 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
4468 0, (u8 *)&pfe, sizeof(pfe), NULL);
4469
4470error_out:
4471 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4472 return ret;
4473}
4474
4475/**
4476 * i40e_ndo_set_vf_spoofchk
4477 * @netdev: network interface device structure
4478 * @vf_id: VF identifier
4479 * @enable: flag to enable or disable feature
4480 *
4481 * Enable or disable VF spoof checking
4482 **/
4483int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
4484{
4485 struct i40e_netdev_priv *np = netdev_priv(netdev);
4486 struct i40e_vsi *vsi = np->vsi;
4487 struct i40e_pf *pf = vsi->back;
4488 struct i40e_vsi_context ctxt;
4489 struct i40e_hw *hw = &pf->hw;
4490 struct i40e_vf *vf;
4491 int ret = 0;
4492
4493 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4494 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4495 return -EAGAIN;
4496 }
4497
4498 /* validate the request */
4499 if (vf_id >= pf->num_alloc_vfs) {
4500 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4501 ret = -EINVAL;
4502 goto out;
4503 }
4504
4505 vf = &(pf->vf[vf_id]);
4506 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4507 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4508 vf_id);
4509 ret = -EAGAIN;
4510 goto out;
4511 }
4512
4513 if (enable == vf->spoofchk)
4514 goto out;
4515
4516 vf->spoofchk = enable;
4517 memset(&ctxt, 0, sizeof(ctxt));
4518 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
4519 ctxt.pf_num = pf->hw.pf_id;
4520 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
4521 if (enable)
4522 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
4523 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
4524 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
4525 if (ret) {
4526 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
4527 ret);
4528 ret = -EIO;
4529 }
4530out:
4531 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4532 return ret;
4533}
4534
4535/**
4536 * i40e_ndo_set_vf_trust
4537 * @netdev: network interface device structure of the pf
4538 * @vf_id: VF identifier
4539 * @setting: trust setting
4540 *
4541 * Enable or disable VF trust setting
4542 **/
4543int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
4544{
4545 struct i40e_netdev_priv *np = netdev_priv(netdev);
4546 struct i40e_pf *pf = np->vsi->back;
4547 struct i40e_vf *vf;
4548 int ret = 0;
4549
4550 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4551 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4552 return -EAGAIN;
4553 }
4554
4555 /* validate the request */
4556 if (vf_id >= pf->num_alloc_vfs) {
4557 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4558 ret = -EINVAL;
4559 goto out;
4560 }
4561
4562 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4563 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
4564 ret = -EINVAL;
4565 goto out;
4566 }
4567
4568 vf = &pf->vf[vf_id];
4569
4570 if (setting == vf->trusted)
4571 goto out;
4572
4573 vf->trusted = setting;
4574 i40e_vc_disable_vf(vf);
4575 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
4576 vf_id, setting ? "" : "un");
4577
4578 if (vf->adq_enabled) {
4579 if (!vf->trusted) {
4580 dev_info(&pf->pdev->dev,
4581 "VF %u no longer Trusted, deleting all cloud filters\n",
4582 vf_id);
4583 i40e_del_all_cloud_filters(vf);
4584 }
4585 }
4586
4587out:
4588 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4589 return ret;
4590}
4591
4592/**
4593 * i40e_get_vf_stats - populate some stats for the VF
4594 * @netdev: the netdev of the PF
4595 * @vf_id: the host OS identifier (0-127)
4596 * @vf_stats: pointer to the OS memory to be initialized
4597 */
4598int i40e_get_vf_stats(struct net_device *netdev, int vf_id,
4599 struct ifla_vf_stats *vf_stats)
4600{
4601 struct i40e_netdev_priv *np = netdev_priv(netdev);
4602 struct i40e_pf *pf = np->vsi->back;
4603 struct i40e_eth_stats *stats;
4604 struct i40e_vsi *vsi;
4605 struct i40e_vf *vf;
4606
4607 /* validate the request */
4608 if (i40e_validate_vf(pf, vf_id))
4609 return -EINVAL;
4610
4611 vf = &pf->vf[vf_id];
4612 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4613 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id);
4614 return -EBUSY;
4615 }
4616
4617 vsi = pf->vsi[vf->lan_vsi_idx];
4618 if (!vsi)
4619 return -EINVAL;
4620
4621 i40e_update_eth_stats(vsi);
4622 stats = &vsi->eth_stats;
4623
4624 memset(vf_stats, 0, sizeof(*vf_stats));
4625
4626 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast +
4627 stats->rx_multicast;
4628 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast +
4629 stats->tx_multicast;
4630 vf_stats->rx_bytes = stats->rx_bytes;
4631 vf_stats->tx_bytes = stats->tx_bytes;
4632 vf_stats->broadcast = stats->rx_broadcast;
4633 vf_stats->multicast = stats->rx_multicast;
4634 vf_stats->rx_dropped = stats->rx_discards;
4635 vf_stats->tx_dropped = stats->tx_discards;
4636
4637 return 0;
4638}