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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 if (!qv_info)
495 continue;
496 v_idx = qv_info->v_idx;
497 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
498 /* Figure out the queue after CEQ and make that the
499 * first queue.
500 */
501 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
502 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
503 next_q_index = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK,
504 reg);
505 next_q_type = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK,
506 reg);
507
508 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
509 reg = (next_q_index &
510 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
511 (next_q_type <<
512 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
513
514 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
515 }
516 }
517 kfree(vf->qvlist_info);
518 vf->qvlist_info = NULL;
519}
520
521/**
522 * i40e_config_rdma_qvlist
523 * @vf: pointer to the VF info
524 * @qvlist_info: queue and vector list
525 *
526 * Return 0 on success or < 0 on error
527 **/
528static int
529i40e_config_rdma_qvlist(struct i40e_vf *vf,
530 struct virtchnl_rdma_qvlist_info *qvlist_info)
531{
532 struct i40e_pf *pf = vf->pf;
533 struct i40e_hw *hw = &pf->hw;
534 struct virtchnl_rdma_qv_info *qv_info;
535 u32 v_idx, i, reg_idx, reg;
536 u32 next_q_idx, next_q_type;
537 size_t size;
538 u32 msix_vf;
539 int ret = 0;
540
541 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
542
543 if (qvlist_info->num_vectors > msix_vf) {
544 dev_warn(&pf->pdev->dev,
545 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n",
546 qvlist_info->num_vectors,
547 msix_vf);
548 ret = -EINVAL;
549 goto err_out;
550 }
551
552 kfree(vf->qvlist_info);
553 size = virtchnl_struct_size(vf->qvlist_info, qv_info,
554 qvlist_info->num_vectors);
555 vf->qvlist_info = kzalloc(size, GFP_KERNEL);
556 if (!vf->qvlist_info) {
557 ret = -ENOMEM;
558 goto err_out;
559 }
560 vf->qvlist_info->num_vectors = qvlist_info->num_vectors;
561
562 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
563 for (i = 0; i < qvlist_info->num_vectors; i++) {
564 qv_info = &qvlist_info->qv_info[i];
565 if (!qv_info)
566 continue;
567
568 /* Validate vector id belongs to this vf */
569 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) {
570 ret = -EINVAL;
571 goto err_free;
572 }
573
574 v_idx = qv_info->v_idx;
575
576 vf->qvlist_info->qv_info[i] = *qv_info;
577
578 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
579 /* We might be sharing the interrupt, so get the first queue
580 * index and type, push it down the list by adding the new
581 * queue on top. Also link it with the new queue in CEQCTL.
582 */
583 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
584 next_q_idx = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK,
585 reg);
586 next_q_type = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK,
587 reg);
588
589 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
590 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
591 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |
592 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |
593 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |
594 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |
595 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));
596 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);
597
598 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
599 reg = (qv_info->ceq_idx &
600 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
601 (I40E_QUEUE_TYPE_PE_CEQ <<
602 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
603 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
604 }
605
606 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
607 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |
608 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |
609 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));
610
611 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);
612 }
613 }
614
615 return 0;
616err_free:
617 kfree(vf->qvlist_info);
618 vf->qvlist_info = NULL;
619err_out:
620 return ret;
621}
622
623/**
624 * i40e_config_vsi_tx_queue
625 * @vf: pointer to the VF info
626 * @vsi_id: id of VSI as provided by the FW
627 * @vsi_queue_id: vsi relative queue index
628 * @info: config. info
629 *
630 * configure tx queue
631 **/
632static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
633 u16 vsi_queue_id,
634 struct virtchnl_txq_info *info)
635{
636 struct i40e_pf *pf = vf->pf;
637 struct i40e_hw *hw = &pf->hw;
638 struct i40e_hmc_obj_txq tx_ctx;
639 struct i40e_vsi *vsi;
640 u16 pf_queue_id;
641 u32 qtx_ctl;
642 int ret = 0;
643
644 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
645 ret = -ENOENT;
646 goto error_context;
647 }
648 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
649 vsi = i40e_find_vsi_from_id(pf, vsi_id);
650 if (!vsi) {
651 ret = -ENOENT;
652 goto error_context;
653 }
654
655 /* clear the context structure first */
656 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
657
658 /* only set the required fields */
659 tx_ctx.base = info->dma_ring_addr / 128;
660 tx_ctx.qlen = info->ring_len;
661 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
662 tx_ctx.rdylist_act = 0;
663 tx_ctx.head_wb_ena = info->headwb_enabled;
664 tx_ctx.head_wb_addr = info->dma_headwb_addr;
665
666 /* clear the context in the HMC */
667 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
668 if (ret) {
669 dev_err(&pf->pdev->dev,
670 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
671 pf_queue_id, ret);
672 ret = -ENOENT;
673 goto error_context;
674 }
675
676 /* set the context in the HMC */
677 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
678 if (ret) {
679 dev_err(&pf->pdev->dev,
680 "Failed to set VF LAN Tx queue context %d error: %d\n",
681 pf_queue_id, ret);
682 ret = -ENOENT;
683 goto error_context;
684 }
685
686 /* associate this queue with the PCI VF function */
687 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
688 qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_PF_INDX_MASK, hw->pf_id);
689 qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_VFVM_INDX_MASK,
690 vf->vf_id + hw->func_caps.vf_base_id);
691 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
692 i40e_flush(hw);
693
694error_context:
695 return ret;
696}
697
698/**
699 * i40e_config_vsi_rx_queue
700 * @vf: pointer to the VF info
701 * @vsi_id: id of VSI as provided by the FW
702 * @vsi_queue_id: vsi relative queue index
703 * @info: config. info
704 *
705 * configure rx queue
706 **/
707static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
708 u16 vsi_queue_id,
709 struct virtchnl_rxq_info *info)
710{
711 u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
712 struct i40e_pf *pf = vf->pf;
713 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
714 struct i40e_hw *hw = &pf->hw;
715 struct i40e_hmc_obj_rxq rx_ctx;
716 int ret = 0;
717
718 /* clear the context structure first */
719 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
720
721 /* only set the required fields */
722 rx_ctx.base = info->dma_ring_addr / 128;
723 rx_ctx.qlen = info->ring_len;
724
725 if (info->splithdr_enabled) {
726 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
727 I40E_RX_SPLIT_IP |
728 I40E_RX_SPLIT_TCP_UDP |
729 I40E_RX_SPLIT_SCTP;
730 /* header length validation */
731 if (info->hdr_size > ((2 * 1024) - 64)) {
732 ret = -EINVAL;
733 goto error_param;
734 }
735 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
736
737 /* set split mode 10b */
738 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;
739 }
740
741 /* databuffer length validation */
742 if (info->databuffer_size > ((16 * 1024) - 128)) {
743 ret = -EINVAL;
744 goto error_param;
745 }
746 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
747
748 /* max pkt. length validation */
749 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
750 ret = -EINVAL;
751 goto error_param;
752 }
753 rx_ctx.rxmax = info->max_pkt_size;
754
755 /* if port VLAN is configured increase the max packet size */
756 if (vsi->info.pvid)
757 rx_ctx.rxmax += VLAN_HLEN;
758
759 /* enable 32bytes desc always */
760 rx_ctx.dsize = 1;
761
762 /* default values */
763 rx_ctx.lrxqthresh = 1;
764 rx_ctx.crcstrip = 1;
765 rx_ctx.prefena = 1;
766 rx_ctx.l2tsel = 1;
767
768 /* clear the context in the HMC */
769 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
770 if (ret) {
771 dev_err(&pf->pdev->dev,
772 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
773 pf_queue_id, ret);
774 ret = -ENOENT;
775 goto error_param;
776 }
777
778 /* set the context in the HMC */
779 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
780 if (ret) {
781 dev_err(&pf->pdev->dev,
782 "Failed to set VF LAN Rx queue context %d error: %d\n",
783 pf_queue_id, ret);
784 ret = -ENOENT;
785 goto error_param;
786 }
787
788error_param:
789 return ret;
790}
791
792/**
793 * i40e_alloc_vsi_res
794 * @vf: pointer to the VF info
795 * @idx: VSI index, applies only for ADq mode, zero otherwise
796 *
797 * alloc VF vsi context & resources
798 **/
799static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx)
800{
801 struct i40e_mac_filter *f = NULL;
802 struct i40e_pf *pf = vf->pf;
803 struct i40e_vsi *vsi;
804 u64 max_tx_rate = 0;
805 int ret = 0;
806
807 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid,
808 vf->vf_id);
809
810 if (!vsi) {
811 dev_err(&pf->pdev->dev,
812 "add vsi failed for VF %d, aq_err %d\n",
813 vf->vf_id, pf->hw.aq.asq_last_status);
814 ret = -ENOENT;
815 goto error_alloc_vsi_res;
816 }
817
818 if (!idx) {
819 u64 hena = i40e_pf_get_default_rss_hena(pf);
820 u8 broadcast[ETH_ALEN];
821
822 vf->lan_vsi_idx = vsi->idx;
823 vf->lan_vsi_id = vsi->id;
824 /* If the port VLAN has been configured and then the
825 * VF driver was removed then the VSI port VLAN
826 * configuration was destroyed. Check if there is
827 * a port VLAN and restore the VSI configuration if
828 * needed.
829 */
830 if (vf->port_vlan_id)
831 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
832
833 spin_lock_bh(&vsi->mac_filter_hash_lock);
834 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
835 f = i40e_add_mac_filter(vsi,
836 vf->default_lan_addr.addr);
837 if (!f)
838 dev_info(&pf->pdev->dev,
839 "Could not add MAC filter %pM for VF %d\n",
840 vf->default_lan_addr.addr, vf->vf_id);
841 }
842 eth_broadcast_addr(broadcast);
843 f = i40e_add_mac_filter(vsi, broadcast);
844 if (!f)
845 dev_info(&pf->pdev->dev,
846 "Could not allocate VF broadcast filter\n");
847 spin_unlock_bh(&vsi->mac_filter_hash_lock);
848 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena);
849 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32));
850 /* program mac filter only for VF VSI */
851 ret = i40e_sync_vsi_filters(vsi);
852 if (ret)
853 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
854 }
855
856 /* storing VSI index and id for ADq and don't apply the mac filter */
857 if (vf->adq_enabled) {
858 vf->ch[idx].vsi_idx = vsi->idx;
859 vf->ch[idx].vsi_id = vsi->id;
860 }
861
862 /* Set VF bandwidth if specified */
863 if (vf->tx_rate) {
864 max_tx_rate = vf->tx_rate;
865 } else if (vf->ch[idx].max_tx_rate) {
866 max_tx_rate = vf->ch[idx].max_tx_rate;
867 }
868
869 if (max_tx_rate) {
870 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR);
871 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
872 max_tx_rate, 0, NULL);
873 if (ret)
874 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
875 vf->vf_id, ret);
876 }
877
878error_alloc_vsi_res:
879 return ret;
880}
881
882/**
883 * i40e_map_pf_queues_to_vsi
884 * @vf: pointer to the VF info
885 *
886 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
887 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI.
888 **/
889static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf)
890{
891 struct i40e_pf *pf = vf->pf;
892 struct i40e_hw *hw = &pf->hw;
893 u32 reg, num_tc = 1; /* VF has at least one traffic class */
894 u16 vsi_id, qps;
895 int i, j;
896
897 if (vf->adq_enabled)
898 num_tc = vf->num_tc;
899
900 for (i = 0; i < num_tc; i++) {
901 if (vf->adq_enabled) {
902 qps = vf->ch[i].num_qps;
903 vsi_id = vf->ch[i].vsi_id;
904 } else {
905 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
906 vsi_id = vf->lan_vsi_id;
907 }
908
909 for (j = 0; j < 7; j++) {
910 if (j * 2 >= qps) {
911 /* end of list */
912 reg = 0x07FF07FF;
913 } else {
914 u16 qid = i40e_vc_get_pf_queue_id(vf,
915 vsi_id,
916 j * 2);
917 reg = qid;
918 qid = i40e_vc_get_pf_queue_id(vf, vsi_id,
919 (j * 2) + 1);
920 reg |= qid << 16;
921 }
922 i40e_write_rx_ctl(hw,
923 I40E_VSILAN_QTABLE(j, vsi_id),
924 reg);
925 }
926 }
927}
928
929/**
930 * i40e_map_pf_to_vf_queues
931 * @vf: pointer to the VF info
932 *
933 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
934 * function takes care of the second part VPLAN_QTABLE & completes VF mappings.
935 **/
936static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf)
937{
938 struct i40e_pf *pf = vf->pf;
939 struct i40e_hw *hw = &pf->hw;
940 u32 reg, total_qps = 0;
941 u32 qps, num_tc = 1; /* VF has at least one traffic class */
942 u16 vsi_id, qid;
943 int i, j;
944
945 if (vf->adq_enabled)
946 num_tc = vf->num_tc;
947
948 for (i = 0; i < num_tc; i++) {
949 if (vf->adq_enabled) {
950 qps = vf->ch[i].num_qps;
951 vsi_id = vf->ch[i].vsi_id;
952 } else {
953 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
954 vsi_id = vf->lan_vsi_id;
955 }
956
957 for (j = 0; j < qps; j++) {
958 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j);
959
960 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
961 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id),
962 reg);
963 total_qps++;
964 }
965 }
966}
967
968/**
969 * i40e_enable_vf_mappings
970 * @vf: pointer to the VF info
971 *
972 * enable VF mappings
973 **/
974static void i40e_enable_vf_mappings(struct i40e_vf *vf)
975{
976 struct i40e_pf *pf = vf->pf;
977 struct i40e_hw *hw = &pf->hw;
978 u32 reg;
979
980 /* Tell the hardware we're using noncontiguous mapping. HW requires
981 * that VF queues be mapped using this method, even when they are
982 * contiguous in real life
983 */
984 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
985 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
986
987 /* enable VF vplan_qtable mappings */
988 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
989 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
990
991 i40e_map_pf_to_vf_queues(vf);
992 i40e_map_pf_queues_to_vsi(vf);
993
994 i40e_flush(hw);
995}
996
997/**
998 * i40e_disable_vf_mappings
999 * @vf: pointer to the VF info
1000 *
1001 * disable VF mappings
1002 **/
1003static void i40e_disable_vf_mappings(struct i40e_vf *vf)
1004{
1005 struct i40e_pf *pf = vf->pf;
1006 struct i40e_hw *hw = &pf->hw;
1007 int i;
1008
1009 /* disable qp mappings */
1010 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
1011 for (i = 0; i < I40E_MAX_VSI_QP; i++)
1012 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
1013 I40E_QUEUE_END_OF_LIST);
1014 i40e_flush(hw);
1015}
1016
1017/**
1018 * i40e_free_vf_res
1019 * @vf: pointer to the VF info
1020 *
1021 * free VF resources
1022 **/
1023static void i40e_free_vf_res(struct i40e_vf *vf)
1024{
1025 struct i40e_pf *pf = vf->pf;
1026 struct i40e_hw *hw = &pf->hw;
1027 u32 reg_idx, reg;
1028 int i, j, msix_vf;
1029
1030 /* Start by disabling VF's configuration API to prevent the OS from
1031 * accessing the VF's VSI after it's freed / invalidated.
1032 */
1033 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1034
1035 /* It's possible the VF had requeuested more queues than the default so
1036 * do the accounting here when we're about to free them.
1037 */
1038 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) {
1039 pf->queues_left += vf->num_queue_pairs -
1040 I40E_DEFAULT_QUEUES_PER_VF;
1041 }
1042
1043 /* free vsi & disconnect it from the parent uplink */
1044 if (vf->lan_vsi_idx) {
1045 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
1046 vf->lan_vsi_idx = 0;
1047 vf->lan_vsi_id = 0;
1048 }
1049
1050 /* do the accounting and remove additional ADq VSI's */
1051 if (vf->adq_enabled && vf->ch[0].vsi_idx) {
1052 for (j = 0; j < vf->num_tc; j++) {
1053 /* At this point VSI0 is already released so don't
1054 * release it again and only clear their values in
1055 * structure variables
1056 */
1057 if (j)
1058 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]);
1059 vf->ch[j].vsi_idx = 0;
1060 vf->ch[j].vsi_id = 0;
1061 }
1062 }
1063 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
1064
1065 /* disable interrupts so the VF starts in a known state */
1066 for (i = 0; i < msix_vf; i++) {
1067 /* format is same for both registers */
1068 if (0 == i)
1069 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
1070 else
1071 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
1072 (vf->vf_id))
1073 + (i - 1));
1074 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
1075 i40e_flush(hw);
1076 }
1077
1078 /* clear the irq settings */
1079 for (i = 0; i < msix_vf; i++) {
1080 /* format is same for both registers */
1081 if (0 == i)
1082 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
1083 else
1084 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
1085 (vf->vf_id))
1086 + (i - 1));
1087 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
1088 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
1089 wr32(hw, reg_idx, reg);
1090 i40e_flush(hw);
1091 }
1092 /* reset some of the state variables keeping track of the resources */
1093 vf->num_queue_pairs = 0;
1094 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
1095 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
1096}
1097
1098/**
1099 * i40e_alloc_vf_res
1100 * @vf: pointer to the VF info
1101 *
1102 * allocate VF resources
1103 **/
1104static int i40e_alloc_vf_res(struct i40e_vf *vf)
1105{
1106 struct i40e_pf *pf = vf->pf;
1107 int total_queue_pairs = 0;
1108 int ret, idx;
1109
1110 if (vf->num_req_queues &&
1111 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF)
1112 pf->num_vf_qps = vf->num_req_queues;
1113 else
1114 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF;
1115
1116 /* allocate hw vsi context & associated resources */
1117 ret = i40e_alloc_vsi_res(vf, 0);
1118 if (ret)
1119 goto error_alloc;
1120 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
1121
1122 /* allocate additional VSIs based on tc information for ADq */
1123 if (vf->adq_enabled) {
1124 if (pf->queues_left >=
1125 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) {
1126 /* TC 0 always belongs to VF VSI */
1127 for (idx = 1; idx < vf->num_tc; idx++) {
1128 ret = i40e_alloc_vsi_res(vf, idx);
1129 if (ret)
1130 goto error_alloc;
1131 }
1132 /* send correct number of queues */
1133 total_queue_pairs = I40E_MAX_VF_QUEUES;
1134 } else {
1135 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n",
1136 vf->vf_id);
1137 vf->adq_enabled = false;
1138 }
1139 }
1140
1141 /* We account for each VF to get a default number of queue pairs. If
1142 * the VF has now requested more, we need to account for that to make
1143 * certain we never request more queues than we actually have left in
1144 * HW.
1145 */
1146 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF)
1147 pf->queues_left -=
1148 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF;
1149
1150 if (vf->trusted)
1151 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1152 else
1153 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1154
1155 /* store the total qps number for the runtime
1156 * VF req validation
1157 */
1158 vf->num_queue_pairs = total_queue_pairs;
1159
1160 /* VF is now completely initialized */
1161 set_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1162
1163error_alloc:
1164 if (ret)
1165 i40e_free_vf_res(vf);
1166
1167 return ret;
1168}
1169
1170#define VF_DEVICE_STATUS 0xAA
1171#define VF_TRANS_PENDING_MASK 0x20
1172/**
1173 * i40e_quiesce_vf_pci
1174 * @vf: pointer to the VF structure
1175 *
1176 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
1177 * if the transactions never clear.
1178 **/
1179static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
1180{
1181 struct i40e_pf *pf = vf->pf;
1182 struct i40e_hw *hw = &pf->hw;
1183 int vf_abs_id, i;
1184 u32 reg;
1185
1186 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
1187
1188 wr32(hw, I40E_PF_PCI_CIAA,
1189 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
1190 for (i = 0; i < 100; i++) {
1191 reg = rd32(hw, I40E_PF_PCI_CIAD);
1192 if ((reg & VF_TRANS_PENDING_MASK) == 0)
1193 return 0;
1194 udelay(1);
1195 }
1196 return -EIO;
1197}
1198
1199/**
1200 * __i40e_getnum_vf_vsi_vlan_filters
1201 * @vsi: pointer to the vsi
1202 *
1203 * called to get the number of VLANs offloaded on this VF
1204 **/
1205static int __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1206{
1207 struct i40e_mac_filter *f;
1208 u16 num_vlans = 0, bkt;
1209
1210 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1211 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
1212 num_vlans++;
1213 }
1214
1215 return num_vlans;
1216}
1217
1218/**
1219 * i40e_getnum_vf_vsi_vlan_filters
1220 * @vsi: pointer to the vsi
1221 *
1222 * wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held
1223 **/
1224static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1225{
1226 int num_vlans;
1227
1228 spin_lock_bh(&vsi->mac_filter_hash_lock);
1229 num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi);
1230 spin_unlock_bh(&vsi->mac_filter_hash_lock);
1231
1232 return num_vlans;
1233}
1234
1235/**
1236 * i40e_get_vlan_list_sync
1237 * @vsi: pointer to the VSI
1238 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller
1239 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller.
1240 * This array is allocated here, but has to be freed in caller.
1241 *
1242 * Called to get number of VLANs and VLAN list present in mac_filter_hash.
1243 **/
1244static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans,
1245 s16 **vlan_list)
1246{
1247 struct i40e_mac_filter *f;
1248 int i = 0;
1249 int bkt;
1250
1251 spin_lock_bh(&vsi->mac_filter_hash_lock);
1252 *num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi);
1253 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC);
1254 if (!(*vlan_list))
1255 goto err;
1256
1257 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1258 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1259 continue;
1260 (*vlan_list)[i++] = f->vlan;
1261 }
1262err:
1263 spin_unlock_bh(&vsi->mac_filter_hash_lock);
1264}
1265
1266/**
1267 * i40e_set_vsi_promisc
1268 * @vf: pointer to the VF struct
1269 * @seid: VSI number
1270 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable
1271 * for a given VLAN
1272 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable
1273 * for a given VLAN
1274 * @vl: List of VLANs - apply filter for given VLANs
1275 * @num_vlans: Number of elements in @vl
1276 **/
1277static int
1278i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable,
1279 bool unicast_enable, s16 *vl, u16 num_vlans)
1280{
1281 struct i40e_pf *pf = vf->pf;
1282 struct i40e_hw *hw = &pf->hw;
1283 int aq_ret, aq_tmp = 0;
1284 int i;
1285
1286 /* No VLAN to set promisc on, set on VSI */
1287 if (!num_vlans || !vl) {
1288 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid,
1289 multi_enable,
1290 NULL);
1291 if (aq_ret) {
1292 int aq_err = pf->hw.aq.asq_last_status;
1293
1294 dev_err(&pf->pdev->dev,
1295 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n",
1296 vf->vf_id,
1297 ERR_PTR(aq_ret),
1298 i40e_aq_str(&pf->hw, aq_err));
1299
1300 return aq_ret;
1301 }
1302
1303 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid,
1304 unicast_enable,
1305 NULL, true);
1306
1307 if (aq_ret) {
1308 int aq_err = pf->hw.aq.asq_last_status;
1309
1310 dev_err(&pf->pdev->dev,
1311 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n",
1312 vf->vf_id,
1313 ERR_PTR(aq_ret),
1314 i40e_aq_str(&pf->hw, aq_err));
1315 }
1316
1317 return aq_ret;
1318 }
1319
1320 for (i = 0; i < num_vlans; i++) {
1321 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid,
1322 multi_enable,
1323 vl[i], NULL);
1324 if (aq_ret) {
1325 int aq_err = pf->hw.aq.asq_last_status;
1326
1327 dev_err(&pf->pdev->dev,
1328 "VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n",
1329 vf->vf_id,
1330 ERR_PTR(aq_ret),
1331 i40e_aq_str(&pf->hw, aq_err));
1332
1333 if (!aq_tmp)
1334 aq_tmp = aq_ret;
1335 }
1336
1337 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid,
1338 unicast_enable,
1339 vl[i], NULL);
1340 if (aq_ret) {
1341 int aq_err = pf->hw.aq.asq_last_status;
1342
1343 dev_err(&pf->pdev->dev,
1344 "VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n",
1345 vf->vf_id,
1346 ERR_PTR(aq_ret),
1347 i40e_aq_str(&pf->hw, aq_err));
1348
1349 if (!aq_tmp)
1350 aq_tmp = aq_ret;
1351 }
1352 }
1353
1354 if (aq_tmp)
1355 aq_ret = aq_tmp;
1356
1357 return aq_ret;
1358}
1359
1360/**
1361 * i40e_config_vf_promiscuous_mode
1362 * @vf: pointer to the VF info
1363 * @vsi_id: VSI id
1364 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable
1365 * @alluni: set MAC L2 layer unicast promiscuous enable/disable
1366 *
1367 * Called from the VF to configure the promiscuous mode of
1368 * VF vsis and from the VF reset path to reset promiscuous mode.
1369 **/
1370static int i40e_config_vf_promiscuous_mode(struct i40e_vf *vf,
1371 u16 vsi_id,
1372 bool allmulti,
1373 bool alluni)
1374{
1375 struct i40e_pf *pf = vf->pf;
1376 struct i40e_vsi *vsi;
1377 int aq_ret = 0;
1378 u16 num_vlans;
1379 s16 *vl;
1380
1381 vsi = i40e_find_vsi_from_id(pf, vsi_id);
1382 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi)
1383 return -EINVAL;
1384
1385 if (vf->port_vlan_id) {
1386 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti,
1387 alluni, &vf->port_vlan_id, 1);
1388 return aq_ret;
1389 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1390 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl);
1391
1392 if (!vl)
1393 return -ENOMEM;
1394
1395 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
1396 vl, num_vlans);
1397 kfree(vl);
1398 return aq_ret;
1399 }
1400
1401 /* no VLANs to set on, set on VSI */
1402 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
1403 NULL, 0);
1404 return aq_ret;
1405}
1406
1407/**
1408 * i40e_sync_vfr_reset
1409 * @hw: pointer to hw struct
1410 * @vf_id: VF identifier
1411 *
1412 * Before trigger hardware reset, we need to know if no other process has
1413 * reserved the hardware for any reset operations. This check is done by
1414 * examining the status of the RSTAT1 register used to signal the reset.
1415 **/
1416static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id)
1417{
1418 u32 reg;
1419 int i;
1420
1421 for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) {
1422 reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) &
1423 I40E_VFINT_ICR0_ADMINQ_MASK;
1424 if (reg)
1425 return 0;
1426
1427 usleep_range(100, 200);
1428 }
1429
1430 return -EAGAIN;
1431}
1432
1433/**
1434 * i40e_trigger_vf_reset
1435 * @vf: pointer to the VF structure
1436 * @flr: VFLR was issued or not
1437 *
1438 * Trigger hardware to start a reset for a particular VF. Expects the caller
1439 * to wait the proper amount of time to allow hardware to reset the VF before
1440 * it cleans up and restores VF functionality.
1441 **/
1442static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
1443{
1444 struct i40e_pf *pf = vf->pf;
1445 struct i40e_hw *hw = &pf->hw;
1446 u32 reg, reg_idx, bit_idx;
1447 bool vf_active;
1448 u32 radq;
1449
1450 /* warn the VF */
1451 vf_active = test_and_clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1452
1453 /* Disable VF's configuration API during reset. The flag is re-enabled
1454 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.
1455 * It's normally disabled in i40e_free_vf_res(), but it's safer
1456 * to do it earlier to give some time to finish to any VF config
1457 * functions that may still be running at this point.
1458 */
1459 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1460
1461 /* In the case of a VFLR, the HW has already reset the VF and we
1462 * just need to clean up, so don't hit the VFRTRIG register.
1463 */
1464 if (!flr) {
1465 /* Sync VFR reset before trigger next one */
1466 radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) &
1467 I40E_VFINT_ICR0_ADMINQ_MASK;
1468 if (vf_active && !radq)
1469 /* waiting for finish reset by virtual driver */
1470 if (i40e_sync_vfr_reset(hw, vf->vf_id))
1471 dev_info(&pf->pdev->dev,
1472 "Reset VF %d never finished\n",
1473 vf->vf_id);
1474
1475 /* Reset VF using VPGEN_VFRTRIG reg. It is also setting
1476 * in progress state in rstat1 register.
1477 */
1478 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1479 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1480 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1481 i40e_flush(hw);
1482 }
1483 /* clear the VFLR bit in GLGEN_VFLRSTAT */
1484 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
1485 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
1486 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1487 i40e_flush(hw);
1488
1489 if (i40e_quiesce_vf_pci(vf))
1490 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
1491 vf->vf_id);
1492}
1493
1494/**
1495 * i40e_cleanup_reset_vf
1496 * @vf: pointer to the VF structure
1497 *
1498 * Cleanup a VF after the hardware reset is finished. Expects the caller to
1499 * have verified whether the reset is finished properly, and ensure the
1500 * minimum amount of wait time has passed.
1501 **/
1502static void i40e_cleanup_reset_vf(struct i40e_vf *vf)
1503{
1504 struct i40e_pf *pf = vf->pf;
1505 struct i40e_hw *hw = &pf->hw;
1506 u32 reg;
1507
1508 /* disable promisc modes in case they were enabled */
1509 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false);
1510
1511 /* free VF resources to begin resetting the VSI state */
1512 i40e_free_vf_res(vf);
1513
1514 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg.
1515 * By doing this we allow HW to access VF memory at any point. If we
1516 * did it any sooner, HW could access memory while it was being freed
1517 * in i40e_free_vf_res(), causing an IOMMU fault.
1518 *
1519 * On the other hand, this needs to be done ASAP, because the VF driver
1520 * is waiting for this to happen and may report a timeout. It's
1521 * harmless, but it gets logged into Guest OS kernel log, so best avoid
1522 * it.
1523 */
1524 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1525 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1526 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1527
1528 /* reallocate VF resources to finish resetting the VSI state */
1529 if (!i40e_alloc_vf_res(vf)) {
1530 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1531 i40e_enable_vf_mappings(vf);
1532 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1533 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1534 /* Do not notify the client during VF init */
1535 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE,
1536 &vf->vf_states))
1537 i40e_notify_client_of_vf_reset(pf, abs_vf_id);
1538 vf->num_vlan = 0;
1539 }
1540
1541 /* Tell the VF driver the reset is done. This needs to be done only
1542 * after VF has been fully initialized, because the VF driver may
1543 * request resources immediately after setting this flag.
1544 */
1545 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
1546}
1547
1548/**
1549 * i40e_reset_vf
1550 * @vf: pointer to the VF structure
1551 * @flr: VFLR was issued or not
1552 *
1553 * Returns true if the VF is in reset, resets successfully, or resets
1554 * are disabled and false otherwise.
1555 **/
1556bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
1557{
1558 struct i40e_pf *pf = vf->pf;
1559 struct i40e_hw *hw = &pf->hw;
1560 bool rsd = false;
1561 u32 reg;
1562 int i;
1563
1564 if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state))
1565 return true;
1566
1567 /* Bail out if VFs are disabled. */
1568 if (test_bit(__I40E_VF_DISABLE, pf->state))
1569 return true;
1570
1571 /* If VF is being reset already we don't need to continue. */
1572 if (test_and_set_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1573 return true;
1574
1575 i40e_trigger_vf_reset(vf, flr);
1576
1577 /* poll VPGEN_VFRSTAT reg to make sure
1578 * that reset is complete
1579 */
1580 for (i = 0; i < 10; i++) {
1581 /* VF reset requires driver to first reset the VF and then
1582 * poll the status register to make sure that the reset
1583 * completed successfully. Due to internal HW FIFO flushes,
1584 * we must wait 10ms before the register will be valid.
1585 */
1586 usleep_range(10000, 20000);
1587 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1588 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
1589 rsd = true;
1590 break;
1591 }
1592 }
1593
1594 if (flr)
1595 usleep_range(10000, 20000);
1596
1597 if (!rsd)
1598 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1599 vf->vf_id);
1600 usleep_range(10000, 20000);
1601
1602 /* On initial reset, we don't have any queues to disable */
1603 if (vf->lan_vsi_idx != 0)
1604 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1605
1606 i40e_cleanup_reset_vf(vf);
1607
1608 i40e_flush(hw);
1609 usleep_range(20000, 40000);
1610 clear_bit(I40E_VF_STATE_RESETTING, &vf->vf_states);
1611
1612 return true;
1613}
1614
1615/**
1616 * i40e_reset_all_vfs
1617 * @pf: pointer to the PF structure
1618 * @flr: VFLR was issued or not
1619 *
1620 * Reset all allocated VFs in one go. First, tell the hardware to reset each
1621 * VF, then do all the waiting in one chunk, and finally finish restoring each
1622 * VF after the wait. This is useful during PF routines which need to reset
1623 * all VFs, as otherwise it must perform these resets in a serialized fashion.
1624 *
1625 * Returns true if any VFs were reset, and false otherwise.
1626 **/
1627bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
1628{
1629 struct i40e_hw *hw = &pf->hw;
1630 struct i40e_vf *vf;
1631 int i, v;
1632 u32 reg;
1633
1634 /* If we don't have any VFs, then there is nothing to reset */
1635 if (!pf->num_alloc_vfs)
1636 return false;
1637
1638 /* If VFs have been disabled, there is no need to reset */
1639 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1640 return false;
1641
1642 /* Begin reset on all VFs at once */
1643 for (v = 0; v < pf->num_alloc_vfs; v++) {
1644 vf = &pf->vf[v];
1645 /* If VF is being reset no need to trigger reset again */
1646 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1647 i40e_trigger_vf_reset(&pf->vf[v], flr);
1648 }
1649
1650 /* HW requires some time to make sure it can flush the FIFO for a VF
1651 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
1652 * sequence to make sure that it has completed. We'll keep track of
1653 * the VFs using a simple iterator that increments once that VF has
1654 * finished resetting.
1655 */
1656 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) {
1657 usleep_range(10000, 20000);
1658
1659 /* Check each VF in sequence, beginning with the VF to fail
1660 * the previous check.
1661 */
1662 while (v < pf->num_alloc_vfs) {
1663 vf = &pf->vf[v];
1664 if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) {
1665 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1666 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))
1667 break;
1668 }
1669
1670 /* If the current VF has finished resetting, move on
1671 * to the next VF in sequence.
1672 */
1673 v++;
1674 }
1675 }
1676
1677 if (flr)
1678 usleep_range(10000, 20000);
1679
1680 /* Display a warning if at least one VF didn't manage to reset in
1681 * time, but continue on with the operation.
1682 */
1683 if (v < pf->num_alloc_vfs)
1684 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1685 pf->vf[v].vf_id);
1686 usleep_range(10000, 20000);
1687
1688 /* Begin disabling all the rings associated with VFs, but do not wait
1689 * between each VF.
1690 */
1691 for (v = 0; v < pf->num_alloc_vfs; v++) {
1692 /* On initial reset, we don't have any queues to disable */
1693 if (pf->vf[v].lan_vsi_idx == 0)
1694 continue;
1695
1696 /* If VF is reset in another thread just continue */
1697 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1698 continue;
1699
1700 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]);
1701 }
1702
1703 /* Now that we've notified HW to disable all of the VF rings, wait
1704 * until they finish.
1705 */
1706 for (v = 0; v < pf->num_alloc_vfs; v++) {
1707 /* On initial reset, we don't have any queues to disable */
1708 if (pf->vf[v].lan_vsi_idx == 0)
1709 continue;
1710
1711 /* If VF is reset in another thread just continue */
1712 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1713 continue;
1714
1715 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]);
1716 }
1717
1718 /* Hw may need up to 50ms to finish disabling the RX queues. We
1719 * minimize the wait by delaying only once for all VFs.
1720 */
1721 mdelay(50);
1722
1723 /* Finish the reset on each VF */
1724 for (v = 0; v < pf->num_alloc_vfs; v++) {
1725 /* If VF is reset in another thread just continue */
1726 if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1727 continue;
1728
1729 i40e_cleanup_reset_vf(&pf->vf[v]);
1730 }
1731
1732 i40e_flush(hw);
1733 usleep_range(20000, 40000);
1734 clear_bit(__I40E_VF_DISABLE, pf->state);
1735
1736 return true;
1737}
1738
1739/**
1740 * i40e_free_vfs
1741 * @pf: pointer to the PF structure
1742 *
1743 * free VF resources
1744 **/
1745void i40e_free_vfs(struct i40e_pf *pf)
1746{
1747 struct i40e_hw *hw = &pf->hw;
1748 u32 reg_idx, bit_idx;
1749 int i, tmp, vf_id;
1750
1751 if (!pf->vf)
1752 return;
1753
1754 set_bit(__I40E_VFS_RELEASING, pf->state);
1755 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1756 usleep_range(1000, 2000);
1757
1758 i40e_notify_client_of_vf_enable(pf, 0);
1759
1760 /* Disable IOV before freeing resources. This lets any VF drivers
1761 * running in the host get themselves cleaned up before we yank
1762 * the carpet out from underneath their feet.
1763 */
1764 if (!pci_vfs_assigned(pf->pdev))
1765 pci_disable_sriov(pf->pdev);
1766 else
1767 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1768
1769 /* Amortize wait time by stopping all VFs at the same time */
1770 for (i = 0; i < pf->num_alloc_vfs; i++) {
1771 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1772 continue;
1773
1774 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]);
1775 }
1776
1777 for (i = 0; i < pf->num_alloc_vfs; i++) {
1778 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1779 continue;
1780
1781 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]);
1782 }
1783
1784 /* free up VF resources */
1785 tmp = pf->num_alloc_vfs;
1786 pf->num_alloc_vfs = 0;
1787 for (i = 0; i < tmp; i++) {
1788 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1789 i40e_free_vf_res(&pf->vf[i]);
1790 /* disable qp mappings */
1791 i40e_disable_vf_mappings(&pf->vf[i]);
1792 }
1793
1794 kfree(pf->vf);
1795 pf->vf = NULL;
1796
1797 /* This check is for when the driver is unloaded while VFs are
1798 * assigned. Setting the number of VFs to 0 through sysfs is caught
1799 * before this function ever gets called.
1800 */
1801 if (!pci_vfs_assigned(pf->pdev)) {
1802 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1803 * work correctly when SR-IOV gets re-enabled.
1804 */
1805 for (vf_id = 0; vf_id < tmp; vf_id++) {
1806 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1807 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1808 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1809 }
1810 }
1811 clear_bit(__I40E_VF_DISABLE, pf->state);
1812 clear_bit(__I40E_VFS_RELEASING, pf->state);
1813}
1814
1815#ifdef CONFIG_PCI_IOV
1816/**
1817 * i40e_alloc_vfs
1818 * @pf: pointer to the PF structure
1819 * @num_alloc_vfs: number of VFs to allocate
1820 *
1821 * allocate VF resources
1822 **/
1823int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1824{
1825 struct i40e_vf *vfs;
1826 int i, ret = 0;
1827
1828 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1829 i40e_irq_dynamic_disable_icr0(pf);
1830
1831 /* Check to see if we're just allocating resources for extant VFs */
1832 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1833 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1834 if (ret) {
1835 clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
1836 pf->num_alloc_vfs = 0;
1837 goto err_iov;
1838 }
1839 }
1840 /* allocate memory */
1841 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1842 if (!vfs) {
1843 ret = -ENOMEM;
1844 goto err_alloc;
1845 }
1846 pf->vf = vfs;
1847
1848 /* apply default profile */
1849 for (i = 0; i < num_alloc_vfs; i++) {
1850 vfs[i].pf = pf;
1851 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1852 vfs[i].vf_id = i;
1853
1854 /* assign default capabilities */
1855 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1856 vfs[i].spoofchk = true;
1857
1858 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states);
1859
1860 }
1861 pf->num_alloc_vfs = num_alloc_vfs;
1862
1863 /* VF resources get allocated during reset */
1864 i40e_reset_all_vfs(pf, false);
1865
1866 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1867
1868err_alloc:
1869 if (ret)
1870 i40e_free_vfs(pf);
1871err_iov:
1872 /* Re-enable interrupt 0. */
1873 i40e_irq_dynamic_enable_icr0(pf);
1874 return ret;
1875}
1876
1877#endif
1878/**
1879 * i40e_pci_sriov_enable
1880 * @pdev: pointer to a pci_dev structure
1881 * @num_vfs: number of VFs to allocate
1882 *
1883 * Enable or change the number of VFs
1884 **/
1885static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1886{
1887#ifdef CONFIG_PCI_IOV
1888 struct i40e_pf *pf = pci_get_drvdata(pdev);
1889 int pre_existing_vfs = pci_num_vf(pdev);
1890 int err = 0;
1891
1892 if (test_bit(__I40E_TESTING, pf->state)) {
1893 dev_warn(&pdev->dev,
1894 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1895 err = -EPERM;
1896 goto err_out;
1897 }
1898
1899 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1900 i40e_free_vfs(pf);
1901 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1902 goto out;
1903
1904 if (num_vfs > pf->num_req_vfs) {
1905 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1906 num_vfs, pf->num_req_vfs);
1907 err = -EPERM;
1908 goto err_out;
1909 }
1910
1911 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1912 err = i40e_alloc_vfs(pf, num_vfs);
1913 if (err) {
1914 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1915 goto err_out;
1916 }
1917
1918out:
1919 return num_vfs;
1920
1921err_out:
1922 return err;
1923#endif
1924 return 0;
1925}
1926
1927/**
1928 * i40e_pci_sriov_configure
1929 * @pdev: pointer to a pci_dev structure
1930 * @num_vfs: number of VFs to allocate
1931 *
1932 * Enable or change the number of VFs. Called when the user updates the number
1933 * of VFs in sysfs.
1934 **/
1935int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1936{
1937 struct i40e_pf *pf = pci_get_drvdata(pdev);
1938 int ret = 0;
1939
1940 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
1941 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n");
1942 return -EAGAIN;
1943 }
1944
1945 if (num_vfs) {
1946 if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) {
1947 set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
1948 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
1949 }
1950 ret = i40e_pci_sriov_enable(pdev, num_vfs);
1951 goto sriov_configure_out;
1952 }
1953
1954 if (!pci_vfs_assigned(pf->pdev)) {
1955 i40e_free_vfs(pf);
1956 clear_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
1957 i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
1958 } else {
1959 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1960 ret = -EINVAL;
1961 goto sriov_configure_out;
1962 }
1963sriov_configure_out:
1964 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
1965 return ret;
1966}
1967
1968/***********************virtual channel routines******************/
1969
1970/**
1971 * i40e_vc_send_msg_to_vf
1972 * @vf: pointer to the VF info
1973 * @v_opcode: virtual channel opcode
1974 * @v_retval: virtual channel return value
1975 * @msg: pointer to the msg buffer
1976 * @msglen: msg length
1977 *
1978 * send msg to VF
1979 **/
1980static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1981 u32 v_retval, u8 *msg, u16 msglen)
1982{
1983 struct i40e_pf *pf;
1984 struct i40e_hw *hw;
1985 int abs_vf_id;
1986 int aq_ret;
1987
1988 /* validate the request */
1989 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1990 return -EINVAL;
1991
1992 pf = vf->pf;
1993 hw = &pf->hw;
1994 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1995
1996 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1997 msg, msglen, NULL);
1998 if (aq_ret) {
1999 dev_info(&pf->pdev->dev,
2000 "Unable to send the message to VF %d aq_err %d\n",
2001 vf->vf_id, pf->hw.aq.asq_last_status);
2002 return -EIO;
2003 }
2004
2005 return 0;
2006}
2007
2008/**
2009 * i40e_vc_send_resp_to_vf
2010 * @vf: pointer to the VF info
2011 * @opcode: operation code
2012 * @retval: return value
2013 *
2014 * send resp msg to VF
2015 **/
2016static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
2017 enum virtchnl_ops opcode,
2018 int retval)
2019{
2020 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
2021}
2022
2023/**
2024 * i40e_sync_vf_state
2025 * @vf: pointer to the VF info
2026 * @state: VF state
2027 *
2028 * Called from a VF message to synchronize the service with a potential
2029 * VF reset state
2030 **/
2031static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state)
2032{
2033 int i;
2034
2035 /* When handling some messages, it needs VF state to be set.
2036 * It is possible that this flag is cleared during VF reset,
2037 * so there is a need to wait until the end of the reset to
2038 * handle the request message correctly.
2039 */
2040 for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) {
2041 if (test_bit(state, &vf->vf_states))
2042 return true;
2043 usleep_range(10000, 20000);
2044 }
2045
2046 return test_bit(state, &vf->vf_states);
2047}
2048
2049/**
2050 * i40e_vc_get_version_msg
2051 * @vf: pointer to the VF info
2052 * @msg: pointer to the msg buffer
2053 *
2054 * called from the VF to request the API version used by the PF
2055 **/
2056static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
2057{
2058 struct virtchnl_version_info info = {
2059 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
2060 };
2061
2062 vf->vf_ver = *(struct virtchnl_version_info *)msg;
2063 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
2064 if (VF_IS_V10(&vf->vf_ver))
2065 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
2066 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
2067 0, (u8 *)&info,
2068 sizeof(struct virtchnl_version_info));
2069}
2070
2071/**
2072 * i40e_del_qch - delete all the additional VSIs created as a part of ADq
2073 * @vf: pointer to VF structure
2074 **/
2075static void i40e_del_qch(struct i40e_vf *vf)
2076{
2077 struct i40e_pf *pf = vf->pf;
2078 int i;
2079
2080 /* first element in the array belongs to primary VF VSI and we shouldn't
2081 * delete it. We should however delete the rest of the VSIs created
2082 */
2083 for (i = 1; i < vf->num_tc; i++) {
2084 if (vf->ch[i].vsi_idx) {
2085 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]);
2086 vf->ch[i].vsi_idx = 0;
2087 vf->ch[i].vsi_id = 0;
2088 }
2089 }
2090}
2091
2092/**
2093 * i40e_vc_get_max_frame_size
2094 * @vf: pointer to the VF
2095 *
2096 * Max frame size is determined based on the current port's max frame size and
2097 * whether a port VLAN is configured on this VF. The VF is not aware whether
2098 * it's in a port VLAN so the PF needs to account for this in max frame size
2099 * checks and sending the max frame size to the VF.
2100 **/
2101static u16 i40e_vc_get_max_frame_size(struct i40e_vf *vf)
2102{
2103 u16 max_frame_size = vf->pf->hw.phy.link_info.max_frame_size;
2104
2105 if (vf->port_vlan_id)
2106 max_frame_size -= VLAN_HLEN;
2107
2108 return max_frame_size;
2109}
2110
2111/**
2112 * i40e_vc_get_vf_resources_msg
2113 * @vf: pointer to the VF info
2114 * @msg: pointer to the msg buffer
2115 *
2116 * called from the VF to request its resources
2117 **/
2118static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
2119{
2120 struct virtchnl_vf_resource *vfres = NULL;
2121 struct i40e_pf *pf = vf->pf;
2122 struct i40e_vsi *vsi;
2123 int num_vsis = 1;
2124 int aq_ret = 0;
2125 size_t len = 0;
2126 int ret;
2127
2128 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_INIT)) {
2129 aq_ret = -EINVAL;
2130 goto err;
2131 }
2132
2133 len = virtchnl_struct_size(vfres, vsi_res, num_vsis);
2134 vfres = kzalloc(len, GFP_KERNEL);
2135 if (!vfres) {
2136 aq_ret = -ENOMEM;
2137 len = 0;
2138 goto err;
2139 }
2140 if (VF_IS_V11(&vf->vf_ver))
2141 vf->driver_caps = *(u32 *)msg;
2142 else
2143 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
2144 VIRTCHNL_VF_OFFLOAD_RSS_REG |
2145 VIRTCHNL_VF_OFFLOAD_VLAN;
2146
2147 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
2148 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
2149 vsi = pf->vsi[vf->lan_vsi_idx];
2150 if (!vsi->info.pvid)
2151 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
2152
2153 if (i40e_vf_client_capable(pf, vf->vf_id) &&
2154 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RDMA)) {
2155 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RDMA;
2156 set_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states);
2157 } else {
2158 clear_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states);
2159 }
2160
2161 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
2162 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
2163 } else {
2164 if (test_bit(I40E_HW_CAP_RSS_AQ, pf->hw.caps) &&
2165 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
2166 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
2167 else
2168 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
2169 }
2170
2171 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) {
2172 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
2173 vfres->vf_cap_flags |=
2174 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
2175 }
2176
2177 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
2178 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
2179
2180 if (test_bit(I40E_HW_CAP_OUTER_UDP_CSUM, pf->hw.caps) &&
2181 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
2182 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
2183
2184 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
2185 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
2186 dev_err(&pf->pdev->dev,
2187 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
2188 vf->vf_id);
2189 aq_ret = -EINVAL;
2190 goto err;
2191 }
2192 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
2193 }
2194
2195 if (test_bit(I40E_HW_CAP_WB_ON_ITR, pf->hw.caps)) {
2196 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
2197 vfres->vf_cap_flags |=
2198 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
2199 }
2200
2201 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
2202 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
2203
2204 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)
2205 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ;
2206
2207 vfres->num_vsis = num_vsis;
2208 vfres->num_queue_pairs = vf->num_queue_pairs;
2209 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
2210 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
2211 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
2212 vfres->max_mtu = i40e_vc_get_max_frame_size(vf);
2213
2214 if (vf->lan_vsi_idx) {
2215 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
2216 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
2217 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
2218 /* VFs only use TC 0 */
2219 vfres->vsi_res[0].qset_handle
2220 = le16_to_cpu(vsi->info.qs_handle[0]);
2221 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) && !vf->pf_set_mac) {
2222 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
2223 eth_zero_addr(vf->default_lan_addr.addr);
2224 }
2225 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
2226 vf->default_lan_addr.addr);
2227 }
2228 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
2229
2230err:
2231 /* send the response back to the VF */
2232 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES,
2233 aq_ret, (u8 *)vfres, len);
2234
2235 kfree(vfres);
2236 return ret;
2237}
2238
2239/**
2240 * i40e_vc_config_promiscuous_mode_msg
2241 * @vf: pointer to the VF info
2242 * @msg: pointer to the msg buffer
2243 *
2244 * called from the VF to configure the promiscuous mode of
2245 * VF vsis
2246 **/
2247static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg)
2248{
2249 struct virtchnl_promisc_info *info =
2250 (struct virtchnl_promisc_info *)msg;
2251 struct i40e_pf *pf = vf->pf;
2252 bool allmulti = false;
2253 bool alluni = false;
2254 int aq_ret = 0;
2255
2256 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2257 aq_ret = -EINVAL;
2258 goto err_out;
2259 }
2260 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2261 dev_err(&pf->pdev->dev,
2262 "Unprivileged VF %d is attempting to configure promiscuous mode\n",
2263 vf->vf_id);
2264
2265 /* Lie to the VF on purpose, because this is an error we can
2266 * ignore. Unprivileged VF is not a virtual channel error.
2267 */
2268 aq_ret = 0;
2269 goto err_out;
2270 }
2271
2272 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) {
2273 aq_ret = -EINVAL;
2274 goto err_out;
2275 }
2276
2277 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
2278 aq_ret = -EINVAL;
2279 goto err_out;
2280 }
2281
2282 /* Multicast promiscuous handling*/
2283 if (info->flags & FLAG_VF_MULTICAST_PROMISC)
2284 allmulti = true;
2285
2286 if (info->flags & FLAG_VF_UNICAST_PROMISC)
2287 alluni = true;
2288 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti,
2289 alluni);
2290 if (aq_ret)
2291 goto err_out;
2292
2293 if (allmulti) {
2294 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC,
2295 &vf->vf_states))
2296 dev_info(&pf->pdev->dev,
2297 "VF %d successfully set multicast promiscuous mode\n",
2298 vf->vf_id);
2299 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC,
2300 &vf->vf_states))
2301 dev_info(&pf->pdev->dev,
2302 "VF %d successfully unset multicast promiscuous mode\n",
2303 vf->vf_id);
2304
2305 if (alluni) {
2306 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC,
2307 &vf->vf_states))
2308 dev_info(&pf->pdev->dev,
2309 "VF %d successfully set unicast promiscuous mode\n",
2310 vf->vf_id);
2311 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC,
2312 &vf->vf_states))
2313 dev_info(&pf->pdev->dev,
2314 "VF %d successfully unset unicast promiscuous mode\n",
2315 vf->vf_id);
2316
2317err_out:
2318 /* send the response to the VF */
2319 return i40e_vc_send_resp_to_vf(vf,
2320 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
2321 aq_ret);
2322}
2323
2324/**
2325 * i40e_vc_config_queues_msg
2326 * @vf: pointer to the VF info
2327 * @msg: pointer to the msg buffer
2328 *
2329 * called from the VF to configure the rx/tx
2330 * queues
2331 **/
2332static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
2333{
2334 struct virtchnl_vsi_queue_config_info *qci =
2335 (struct virtchnl_vsi_queue_config_info *)msg;
2336 struct virtchnl_queue_pair_info *qpi;
2337 u16 vsi_id, vsi_queue_id = 0;
2338 struct i40e_pf *pf = vf->pf;
2339 int i, j = 0, idx = 0;
2340 struct i40e_vsi *vsi;
2341 u16 num_qps_all = 0;
2342 int aq_ret = 0;
2343
2344 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2345 aq_ret = -EINVAL;
2346 goto error_param;
2347 }
2348
2349 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) {
2350 aq_ret = -EINVAL;
2351 goto error_param;
2352 }
2353
2354 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) {
2355 aq_ret = -EINVAL;
2356 goto error_param;
2357 }
2358
2359 if (vf->adq_enabled) {
2360 for (i = 0; i < vf->num_tc; i++)
2361 num_qps_all += vf->ch[i].num_qps;
2362 if (num_qps_all != qci->num_queue_pairs) {
2363 aq_ret = -EINVAL;
2364 goto error_param;
2365 }
2366 }
2367
2368 vsi_id = qci->vsi_id;
2369
2370 for (i = 0; i < qci->num_queue_pairs; i++) {
2371 qpi = &qci->qpair[i];
2372
2373 if (!vf->adq_enabled) {
2374 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
2375 qpi->txq.queue_id)) {
2376 aq_ret = -EINVAL;
2377 goto error_param;
2378 }
2379
2380 vsi_queue_id = qpi->txq.queue_id;
2381
2382 if (qpi->txq.vsi_id != qci->vsi_id ||
2383 qpi->rxq.vsi_id != qci->vsi_id ||
2384 qpi->rxq.queue_id != vsi_queue_id) {
2385 aq_ret = -EINVAL;
2386 goto error_param;
2387 }
2388 }
2389
2390 if (vf->adq_enabled) {
2391 if (idx >= ARRAY_SIZE(vf->ch)) {
2392 aq_ret = -ENODEV;
2393 goto error_param;
2394 }
2395 vsi_id = vf->ch[idx].vsi_id;
2396 }
2397
2398 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
2399 &qpi->rxq) ||
2400 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
2401 &qpi->txq)) {
2402 aq_ret = -EINVAL;
2403 goto error_param;
2404 }
2405
2406 /* For ADq there can be up to 4 VSIs with max 4 queues each.
2407 * VF does not know about these additional VSIs and all
2408 * it cares is about its own queues. PF configures these queues
2409 * to its appropriate VSIs based on TC mapping
2410 */
2411 if (vf->adq_enabled) {
2412 if (idx >= ARRAY_SIZE(vf->ch)) {
2413 aq_ret = -ENODEV;
2414 goto error_param;
2415 }
2416 if (j == (vf->ch[idx].num_qps - 1)) {
2417 idx++;
2418 j = 0; /* resetting the queue count */
2419 vsi_queue_id = 0;
2420 } else {
2421 j++;
2422 vsi_queue_id++;
2423 }
2424 }
2425 }
2426 /* set vsi num_queue_pairs in use to num configured by VF */
2427 if (!vf->adq_enabled) {
2428 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs =
2429 qci->num_queue_pairs;
2430 } else {
2431 for (i = 0; i < vf->num_tc; i++) {
2432 vsi = pf->vsi[vf->ch[i].vsi_idx];
2433 vsi->num_queue_pairs = vf->ch[i].num_qps;
2434
2435 if (i40e_update_adq_vsi_queues(vsi, i)) {
2436 aq_ret = -EIO;
2437 goto error_param;
2438 }
2439 }
2440 }
2441
2442error_param:
2443 /* send the response to the VF */
2444 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
2445 aq_ret);
2446}
2447
2448/**
2449 * i40e_validate_queue_map - check queue map is valid
2450 * @vf: the VF structure pointer
2451 * @vsi_id: vsi id
2452 * @queuemap: Tx or Rx queue map
2453 *
2454 * check if Tx or Rx queue map is valid
2455 **/
2456static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id,
2457 unsigned long queuemap)
2458{
2459 u16 vsi_queue_id, queue_id;
2460
2461 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) {
2462 if (vf->adq_enabled) {
2463 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id;
2464 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF);
2465 } else {
2466 queue_id = vsi_queue_id;
2467 }
2468
2469 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id))
2470 return -EINVAL;
2471 }
2472
2473 return 0;
2474}
2475
2476/**
2477 * i40e_vc_config_irq_map_msg
2478 * @vf: pointer to the VF info
2479 * @msg: pointer to the msg buffer
2480 *
2481 * called from the VF to configure the irq to
2482 * queue map
2483 **/
2484static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg)
2485{
2486 struct virtchnl_irq_map_info *irqmap_info =
2487 (struct virtchnl_irq_map_info *)msg;
2488 struct virtchnl_vector_map *map;
2489 int aq_ret = 0;
2490 u16 vsi_id;
2491 int i;
2492
2493 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2494 aq_ret = -EINVAL;
2495 goto error_param;
2496 }
2497
2498 if (irqmap_info->num_vectors >
2499 vf->pf->hw.func_caps.num_msix_vectors_vf) {
2500 aq_ret = -EINVAL;
2501 goto error_param;
2502 }
2503
2504 for (i = 0; i < irqmap_info->num_vectors; i++) {
2505 map = &irqmap_info->vecmap[i];
2506 /* validate msg params */
2507 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) ||
2508 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) {
2509 aq_ret = -EINVAL;
2510 goto error_param;
2511 }
2512 vsi_id = map->vsi_id;
2513
2514 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) {
2515 aq_ret = -EINVAL;
2516 goto error_param;
2517 }
2518
2519 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) {
2520 aq_ret = -EINVAL;
2521 goto error_param;
2522 }
2523
2524 i40e_config_irq_link_list(vf, vsi_id, map);
2525 }
2526error_param:
2527 /* send the response to the VF */
2528 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP,
2529 aq_ret);
2530}
2531
2532/**
2533 * i40e_ctrl_vf_tx_rings
2534 * @vsi: the SRIOV VSI being configured
2535 * @q_map: bit map of the queues to be enabled
2536 * @enable: start or stop the queue
2537 **/
2538static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2539 bool enable)
2540{
2541 struct i40e_pf *pf = vsi->back;
2542 int ret = 0;
2543 u16 q_id;
2544
2545 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2546 ret = i40e_control_wait_tx_q(vsi->seid, pf,
2547 vsi->base_queue + q_id,
2548 false /*is xdp*/, enable);
2549 if (ret)
2550 break;
2551 }
2552 return ret;
2553}
2554
2555/**
2556 * i40e_ctrl_vf_rx_rings
2557 * @vsi: the SRIOV VSI being configured
2558 * @q_map: bit map of the queues to be enabled
2559 * @enable: start or stop the queue
2560 **/
2561static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2562 bool enable)
2563{
2564 struct i40e_pf *pf = vsi->back;
2565 int ret = 0;
2566 u16 q_id;
2567
2568 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2569 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id,
2570 enable);
2571 if (ret)
2572 break;
2573 }
2574 return ret;
2575}
2576
2577/**
2578 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL
2579 * @vqs: virtchnl_queue_select structure containing bitmaps to validate
2580 *
2581 * Returns true if validation was successful, else false.
2582 */
2583static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
2584{
2585 if ((!vqs->rx_queues && !vqs->tx_queues) ||
2586 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) ||
2587 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES))
2588 return false;
2589
2590 return true;
2591}
2592
2593/**
2594 * i40e_vc_enable_queues_msg
2595 * @vf: pointer to the VF info
2596 * @msg: pointer to the msg buffer
2597 *
2598 * called from the VF to enable all or specific queue(s)
2599 **/
2600static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg)
2601{
2602 struct virtchnl_queue_select *vqs =
2603 (struct virtchnl_queue_select *)msg;
2604 struct i40e_pf *pf = vf->pf;
2605 int aq_ret = 0;
2606 int i;
2607
2608 if (vf->is_disabled_from_host) {
2609 aq_ret = -EPERM;
2610 dev_info(&pf->pdev->dev,
2611 "Admin has disabled VF %d, will not enable queues\n",
2612 vf->vf_id);
2613 goto error_param;
2614 }
2615
2616 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2617 aq_ret = -EINVAL;
2618 goto error_param;
2619 }
2620
2621 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2622 aq_ret = -EINVAL;
2623 goto error_param;
2624 }
2625
2626 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2627 aq_ret = -EINVAL;
2628 goto error_param;
2629 }
2630
2631 /* Use the queue bit map sent by the VF */
2632 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2633 true)) {
2634 aq_ret = -EIO;
2635 goto error_param;
2636 }
2637 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2638 true)) {
2639 aq_ret = -EIO;
2640 goto error_param;
2641 }
2642
2643 /* need to start the rings for additional ADq VSI's as well */
2644 if (vf->adq_enabled) {
2645 /* zero belongs to LAN VSI */
2646 for (i = 1; i < vf->num_tc; i++) {
2647 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx]))
2648 aq_ret = -EIO;
2649 }
2650 }
2651
2652error_param:
2653 /* send the response to the VF */
2654 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES,
2655 aq_ret);
2656}
2657
2658/**
2659 * i40e_vc_disable_queues_msg
2660 * @vf: pointer to the VF info
2661 * @msg: pointer to the msg buffer
2662 *
2663 * called from the VF to disable all or specific
2664 * queue(s)
2665 **/
2666static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg)
2667{
2668 struct virtchnl_queue_select *vqs =
2669 (struct virtchnl_queue_select *)msg;
2670 struct i40e_pf *pf = vf->pf;
2671 int aq_ret = 0;
2672
2673 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2674 aq_ret = -EINVAL;
2675 goto error_param;
2676 }
2677
2678 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2679 aq_ret = -EINVAL;
2680 goto error_param;
2681 }
2682
2683 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2684 aq_ret = -EINVAL;
2685 goto error_param;
2686 }
2687
2688 /* Use the queue bit map sent by the VF */
2689 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2690 false)) {
2691 aq_ret = -EIO;
2692 goto error_param;
2693 }
2694 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2695 false)) {
2696 aq_ret = -EIO;
2697 goto error_param;
2698 }
2699error_param:
2700 /* send the response to the VF */
2701 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES,
2702 aq_ret);
2703}
2704
2705/**
2706 * i40e_check_enough_queue - find big enough queue number
2707 * @vf: pointer to the VF info
2708 * @needed: the number of items needed
2709 *
2710 * Returns the base item index of the queue, or negative for error
2711 **/
2712static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed)
2713{
2714 unsigned int i, cur_queues, more, pool_size;
2715 struct i40e_lump_tracking *pile;
2716 struct i40e_pf *pf = vf->pf;
2717 struct i40e_vsi *vsi;
2718
2719 vsi = pf->vsi[vf->lan_vsi_idx];
2720 cur_queues = vsi->alloc_queue_pairs;
2721
2722 /* if current allocated queues are enough for need */
2723 if (cur_queues >= needed)
2724 return vsi->base_queue;
2725
2726 pile = pf->qp_pile;
2727 if (cur_queues > 0) {
2728 /* if the allocated queues are not zero
2729 * just check if there are enough queues for more
2730 * behind the allocated queues.
2731 */
2732 more = needed - cur_queues;
2733 for (i = vsi->base_queue + cur_queues;
2734 i < pile->num_entries; i++) {
2735 if (pile->list[i] & I40E_PILE_VALID_BIT)
2736 break;
2737
2738 if (more-- == 1)
2739 /* there is enough */
2740 return vsi->base_queue;
2741 }
2742 }
2743
2744 pool_size = 0;
2745 for (i = 0; i < pile->num_entries; i++) {
2746 if (pile->list[i] & I40E_PILE_VALID_BIT) {
2747 pool_size = 0;
2748 continue;
2749 }
2750 if (needed <= ++pool_size)
2751 /* there is enough */
2752 return i;
2753 }
2754
2755 return -ENOMEM;
2756}
2757
2758/**
2759 * i40e_vc_request_queues_msg
2760 * @vf: pointer to the VF info
2761 * @msg: pointer to the msg buffer
2762 *
2763 * VFs get a default number of queues but can use this message to request a
2764 * different number. If the request is successful, PF will reset the VF and
2765 * return 0. If unsuccessful, PF will send message informing VF of number of
2766 * available queues and return result of sending VF a message.
2767 **/
2768static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
2769{
2770 struct virtchnl_vf_res_request *vfres =
2771 (struct virtchnl_vf_res_request *)msg;
2772 u16 req_pairs = vfres->num_queue_pairs;
2773 u8 cur_pairs = vf->num_queue_pairs;
2774 struct i40e_pf *pf = vf->pf;
2775
2776 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE))
2777 return -EINVAL;
2778
2779 if (req_pairs > I40E_MAX_VF_QUEUES) {
2780 dev_err(&pf->pdev->dev,
2781 "VF %d tried to request more than %d queues.\n",
2782 vf->vf_id,
2783 I40E_MAX_VF_QUEUES);
2784 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES;
2785 } else if (req_pairs - cur_pairs > pf->queues_left) {
2786 dev_warn(&pf->pdev->dev,
2787 "VF %d requested %d more queues, but only %d left.\n",
2788 vf->vf_id,
2789 req_pairs - cur_pairs,
2790 pf->queues_left);
2791 vfres->num_queue_pairs = pf->queues_left + cur_pairs;
2792 } else if (i40e_check_enough_queue(vf, req_pairs) < 0) {
2793 dev_warn(&pf->pdev->dev,
2794 "VF %d requested %d more queues, but there is not enough for it.\n",
2795 vf->vf_id,
2796 req_pairs - cur_pairs);
2797 vfres->num_queue_pairs = cur_pairs;
2798 } else {
2799 /* successful request */
2800 vf->num_req_queues = req_pairs;
2801 i40e_vc_reset_vf(vf, true);
2802 return 0;
2803 }
2804
2805 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0,
2806 (u8 *)vfres, sizeof(*vfres));
2807}
2808
2809/**
2810 * i40e_vc_get_stats_msg
2811 * @vf: pointer to the VF info
2812 * @msg: pointer to the msg buffer
2813 *
2814 * called from the VF to get vsi stats
2815 **/
2816static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg)
2817{
2818 struct virtchnl_queue_select *vqs =
2819 (struct virtchnl_queue_select *)msg;
2820 struct i40e_pf *pf = vf->pf;
2821 struct i40e_eth_stats stats;
2822 int aq_ret = 0;
2823 struct i40e_vsi *vsi;
2824
2825 memset(&stats, 0, sizeof(struct i40e_eth_stats));
2826
2827 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
2828 aq_ret = -EINVAL;
2829 goto error_param;
2830 }
2831
2832 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2833 aq_ret = -EINVAL;
2834 goto error_param;
2835 }
2836
2837 vsi = pf->vsi[vf->lan_vsi_idx];
2838 if (!vsi) {
2839 aq_ret = -EINVAL;
2840 goto error_param;
2841 }
2842 i40e_update_eth_stats(vsi);
2843 stats = vsi->eth_stats;
2844
2845error_param:
2846 /* send the response back to the VF */
2847 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret,
2848 (u8 *)&stats, sizeof(stats));
2849}
2850
2851/**
2852 * i40e_can_vf_change_mac
2853 * @vf: pointer to the VF info
2854 *
2855 * Return true if the VF is allowed to change its MAC filters, false otherwise
2856 */
2857static bool i40e_can_vf_change_mac(struct i40e_vf *vf)
2858{
2859 /* If the VF MAC address has been set administratively (via the
2860 * ndo_set_vf_mac command), then deny permission to the VF to
2861 * add/delete unicast MAC addresses, unless the VF is trusted
2862 */
2863 if (vf->pf_set_mac && !vf->trusted)
2864 return false;
2865
2866 return true;
2867}
2868
2869#define I40E_MAX_MACVLAN_PER_HW 3072
2870#define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \
2871 (num_ports))
2872/* If the VF is not trusted restrict the number of MAC/VLAN it can program
2873 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast
2874 */
2875#define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1)
2876#define I40E_VC_MAX_VLAN_PER_VF 16
2877
2878#define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \
2879({ typeof(vf_num) vf_num_ = (vf_num); \
2880 typeof(num_ports) num_ports_ = (num_ports); \
2881 ((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \
2882 I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \
2883 I40E_VC_MAX_MAC_ADDR_PER_VF; })
2884/**
2885 * i40e_check_vf_permission
2886 * @vf: pointer to the VF info
2887 * @al: MAC address list from virtchnl
2888 *
2889 * Check that the given list of MAC addresses is allowed. Will return -EPERM
2890 * if any address in the list is not valid. Checks the following conditions:
2891 *
2892 * 1) broadcast and zero addresses are never valid
2893 * 2) unicast addresses are not allowed if the VMM has administratively set
2894 * the VF MAC address, unless the VF is marked as privileged.
2895 * 3) There is enough space to add all the addresses.
2896 *
2897 * Note that to guarantee consistency, it is expected this function be called
2898 * while holding the mac_filter_hash_lock, as otherwise the current number of
2899 * addresses might not be accurate.
2900 **/
2901static inline int i40e_check_vf_permission(struct i40e_vf *vf,
2902 struct virtchnl_ether_addr_list *al)
2903{
2904 struct i40e_pf *pf = vf->pf;
2905 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
2906 struct i40e_hw *hw = &pf->hw;
2907 int mac2add_cnt = 0;
2908 int i;
2909
2910 for (i = 0; i < al->num_elements; i++) {
2911 struct i40e_mac_filter *f;
2912 u8 *addr = al->list[i].addr;
2913
2914 if (is_broadcast_ether_addr(addr) ||
2915 is_zero_ether_addr(addr)) {
2916 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
2917 addr);
2918 return -EINVAL;
2919 }
2920
2921 /* If the host VMM administrator has set the VF MAC address
2922 * administratively via the ndo_set_vf_mac command then deny
2923 * permission to the VF to add or delete unicast MAC addresses.
2924 * Unless the VF is privileged and then it can do whatever.
2925 * The VF may request to set the MAC address filter already
2926 * assigned to it so do not return an error in that case.
2927 */
2928 if (!i40e_can_vf_change_mac(vf) &&
2929 !is_multicast_ether_addr(addr) &&
2930 !ether_addr_equal(addr, vf->default_lan_addr.addr)) {
2931 dev_err(&pf->pdev->dev,
2932 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
2933 return -EPERM;
2934 }
2935
2936 /*count filters that really will be added*/
2937 f = i40e_find_mac(vsi, addr);
2938 if (!f)
2939 ++mac2add_cnt;
2940 }
2941
2942 /* If this VF is not privileged, then we can't add more than a limited
2943 * number of addresses. Check to make sure that the additions do not
2944 * push us over the limit.
2945 */
2946 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2947 if ((i40e_count_filters(vsi) + mac2add_cnt) >
2948 I40E_VC_MAX_MAC_ADDR_PER_VF) {
2949 dev_err(&pf->pdev->dev,
2950 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n");
2951 return -EPERM;
2952 }
2953 /* If this VF is trusted, it can use more resources than untrusted.
2954 * However to ensure that every trusted VF has appropriate number of
2955 * resources, divide whole pool of resources per port and then across
2956 * all VFs.
2957 */
2958 } else {
2959 if ((i40e_count_filters(vsi) + mac2add_cnt) >
2960 I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs,
2961 hw->num_ports)) {
2962 dev_err(&pf->pdev->dev,
2963 "Cannot add more MAC addresses, trusted VF exhausted it's resources\n");
2964 return -EPERM;
2965 }
2966 }
2967 return 0;
2968}
2969
2970/**
2971 * i40e_vc_ether_addr_type - get type of virtchnl_ether_addr
2972 * @vc_ether_addr: used to extract the type
2973 **/
2974static u8
2975i40e_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr)
2976{
2977 return vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK;
2978}
2979
2980/**
2981 * i40e_is_vc_addr_legacy
2982 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
2983 *
2984 * check if the MAC address is from an older VF
2985 **/
2986static bool
2987i40e_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr)
2988{
2989 return i40e_vc_ether_addr_type(vc_ether_addr) ==
2990 VIRTCHNL_ETHER_ADDR_LEGACY;
2991}
2992
2993/**
2994 * i40e_is_vc_addr_primary
2995 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
2996 *
2997 * check if the MAC address is the VF's primary MAC
2998 * This function should only be called when the MAC address in
2999 * virtchnl_ether_addr is a valid unicast MAC
3000 **/
3001static bool
3002i40e_is_vc_addr_primary(struct virtchnl_ether_addr *vc_ether_addr)
3003{
3004 return i40e_vc_ether_addr_type(vc_ether_addr) ==
3005 VIRTCHNL_ETHER_ADDR_PRIMARY;
3006}
3007
3008/**
3009 * i40e_update_vf_mac_addr
3010 * @vf: VF to update
3011 * @vc_ether_addr: structure from VIRTCHNL with MAC to add
3012 *
3013 * update the VF's cached hardware MAC if allowed
3014 **/
3015static void
3016i40e_update_vf_mac_addr(struct i40e_vf *vf,
3017 struct virtchnl_ether_addr *vc_ether_addr)
3018{
3019 u8 *mac_addr = vc_ether_addr->addr;
3020
3021 if (!is_valid_ether_addr(mac_addr))
3022 return;
3023
3024 /* If request to add MAC filter is a primary request update its default
3025 * MAC address with the requested one. If it is a legacy request then
3026 * check if current default is empty if so update the default MAC
3027 */
3028 if (i40e_is_vc_addr_primary(vc_ether_addr)) {
3029 ether_addr_copy(vf->default_lan_addr.addr, mac_addr);
3030 } else if (i40e_is_vc_addr_legacy(vc_ether_addr)) {
3031 if (is_zero_ether_addr(vf->default_lan_addr.addr))
3032 ether_addr_copy(vf->default_lan_addr.addr, mac_addr);
3033 }
3034}
3035
3036/**
3037 * i40e_vc_add_mac_addr_msg
3038 * @vf: pointer to the VF info
3039 * @msg: pointer to the msg buffer
3040 *
3041 * add guest mac address filter
3042 **/
3043static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
3044{
3045 struct virtchnl_ether_addr_list *al =
3046 (struct virtchnl_ether_addr_list *)msg;
3047 struct i40e_pf *pf = vf->pf;
3048 struct i40e_vsi *vsi = NULL;
3049 int ret = 0;
3050 int i;
3051
3052 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3053 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
3054 ret = -EINVAL;
3055 goto error_param;
3056 }
3057
3058 vsi = pf->vsi[vf->lan_vsi_idx];
3059
3060 /* Lock once, because all function inside for loop accesses VSI's
3061 * MAC filter list which needs to be protected using same lock.
3062 */
3063 spin_lock_bh(&vsi->mac_filter_hash_lock);
3064
3065 ret = i40e_check_vf_permission(vf, al);
3066 if (ret) {
3067 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3068 goto error_param;
3069 }
3070
3071 /* add new addresses to the list */
3072 for (i = 0; i < al->num_elements; i++) {
3073 struct i40e_mac_filter *f;
3074
3075 f = i40e_find_mac(vsi, al->list[i].addr);
3076 if (!f) {
3077 f = i40e_add_mac_filter(vsi, al->list[i].addr);
3078
3079 if (!f) {
3080 dev_err(&pf->pdev->dev,
3081 "Unable to add MAC filter %pM for VF %d\n",
3082 al->list[i].addr, vf->vf_id);
3083 ret = -EINVAL;
3084 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3085 goto error_param;
3086 }
3087 }
3088 i40e_update_vf_mac_addr(vf, &al->list[i]);
3089 }
3090 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3091
3092 /* program the updated filter list */
3093 ret = i40e_sync_vsi_filters(vsi);
3094 if (ret)
3095 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
3096 vf->vf_id, ret);
3097
3098error_param:
3099 /* send the response to the VF */
3100 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
3101 ret, NULL, 0);
3102}
3103
3104/**
3105 * i40e_vc_del_mac_addr_msg
3106 * @vf: pointer to the VF info
3107 * @msg: pointer to the msg buffer
3108 *
3109 * remove guest mac address filter
3110 **/
3111static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
3112{
3113 struct virtchnl_ether_addr_list *al =
3114 (struct virtchnl_ether_addr_list *)msg;
3115 bool was_unimac_deleted = false;
3116 struct i40e_pf *pf = vf->pf;
3117 struct i40e_vsi *vsi = NULL;
3118 int ret = 0;
3119 int i;
3120
3121 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3122 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
3123 ret = -EINVAL;
3124 goto error_param;
3125 }
3126
3127 for (i = 0; i < al->num_elements; i++) {
3128 if (is_broadcast_ether_addr(al->list[i].addr) ||
3129 is_zero_ether_addr(al->list[i].addr)) {
3130 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
3131 al->list[i].addr, vf->vf_id);
3132 ret = -EINVAL;
3133 goto error_param;
3134 }
3135 }
3136 vsi = pf->vsi[vf->lan_vsi_idx];
3137
3138 spin_lock_bh(&vsi->mac_filter_hash_lock);
3139 /* delete addresses from the list */
3140 for (i = 0; i < al->num_elements; i++) {
3141 const u8 *addr = al->list[i].addr;
3142
3143 /* Allow to delete VF primary MAC only if it was not set
3144 * administratively by PF or if VF is trusted.
3145 */
3146 if (ether_addr_equal(addr, vf->default_lan_addr.addr) &&
3147 i40e_can_vf_change_mac(vf))
3148 was_unimac_deleted = true;
3149 else
3150 continue;
3151
3152 if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
3153 ret = -EINVAL;
3154 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3155 goto error_param;
3156 }
3157 }
3158
3159 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3160
3161 if (was_unimac_deleted)
3162 eth_zero_addr(vf->default_lan_addr.addr);
3163
3164 /* program the updated filter list */
3165 ret = i40e_sync_vsi_filters(vsi);
3166 if (ret)
3167 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
3168 vf->vf_id, ret);
3169
3170 if (vf->trusted && was_unimac_deleted) {
3171 struct i40e_mac_filter *f;
3172 struct hlist_node *h;
3173 u8 *macaddr = NULL;
3174 int bkt;
3175
3176 /* set last unicast mac address as default */
3177 spin_lock_bh(&vsi->mac_filter_hash_lock);
3178 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) {
3179 if (is_valid_ether_addr(f->macaddr))
3180 macaddr = f->macaddr;
3181 }
3182 if (macaddr)
3183 ether_addr_copy(vf->default_lan_addr.addr, macaddr);
3184 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3185 }
3186error_param:
3187 /* send the response to the VF */
3188 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, ret);
3189}
3190
3191/**
3192 * i40e_vc_add_vlan_msg
3193 * @vf: pointer to the VF info
3194 * @msg: pointer to the msg buffer
3195 *
3196 * program guest vlan id
3197 **/
3198static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg)
3199{
3200 struct virtchnl_vlan_filter_list *vfl =
3201 (struct virtchnl_vlan_filter_list *)msg;
3202 struct i40e_pf *pf = vf->pf;
3203 struct i40e_vsi *vsi = NULL;
3204 int aq_ret = 0;
3205 int i;
3206
3207 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
3208 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3209 dev_err(&pf->pdev->dev,
3210 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
3211 goto error_param;
3212 }
3213 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3214 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
3215 aq_ret = -EINVAL;
3216 goto error_param;
3217 }
3218
3219 for (i = 0; i < vfl->num_elements; i++) {
3220 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
3221 aq_ret = -EINVAL;
3222 dev_err(&pf->pdev->dev,
3223 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
3224 goto error_param;
3225 }
3226 }
3227 vsi = pf->vsi[vf->lan_vsi_idx];
3228 if (vsi->info.pvid) {
3229 aq_ret = -EINVAL;
3230 goto error_param;
3231 }
3232
3233 i40e_vlan_stripping_enable(vsi);
3234 for (i = 0; i < vfl->num_elements; i++) {
3235 /* add new VLAN filter */
3236 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
3237 if (!ret)
3238 vf->num_vlan++;
3239
3240 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
3241 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
3242 true,
3243 vfl->vlan_id[i],
3244 NULL);
3245 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
3246 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
3247 true,
3248 vfl->vlan_id[i],
3249 NULL);
3250
3251 if (ret)
3252 dev_err(&pf->pdev->dev,
3253 "Unable to add VLAN filter %d for VF %d, error %d\n",
3254 vfl->vlan_id[i], vf->vf_id, ret);
3255 }
3256
3257error_param:
3258 /* send the response to the VF */
3259 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret);
3260}
3261
3262/**
3263 * i40e_vc_remove_vlan_msg
3264 * @vf: pointer to the VF info
3265 * @msg: pointer to the msg buffer
3266 *
3267 * remove programmed guest vlan id
3268 **/
3269static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg)
3270{
3271 struct virtchnl_vlan_filter_list *vfl =
3272 (struct virtchnl_vlan_filter_list *)msg;
3273 struct i40e_pf *pf = vf->pf;
3274 struct i40e_vsi *vsi = NULL;
3275 int aq_ret = 0;
3276 int i;
3277
3278 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3279 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
3280 aq_ret = -EINVAL;
3281 goto error_param;
3282 }
3283
3284 for (i = 0; i < vfl->num_elements; i++) {
3285 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
3286 aq_ret = -EINVAL;
3287 goto error_param;
3288 }
3289 }
3290
3291 vsi = pf->vsi[vf->lan_vsi_idx];
3292 if (vsi->info.pvid) {
3293 if (vfl->num_elements > 1 || vfl->vlan_id[0])
3294 aq_ret = -EINVAL;
3295 goto error_param;
3296 }
3297
3298 for (i = 0; i < vfl->num_elements; i++) {
3299 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
3300 vf->num_vlan--;
3301
3302 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
3303 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
3304 false,
3305 vfl->vlan_id[i],
3306 NULL);
3307 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
3308 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
3309 false,
3310 vfl->vlan_id[i],
3311 NULL);
3312 }
3313
3314error_param:
3315 /* send the response to the VF */
3316 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret);
3317}
3318
3319/**
3320 * i40e_vc_rdma_msg
3321 * @vf: pointer to the VF info
3322 * @msg: pointer to the msg buffer
3323 * @msglen: msg length
3324 *
3325 * called from the VF for the iwarp msgs
3326 **/
3327static int i40e_vc_rdma_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
3328{
3329 struct i40e_pf *pf = vf->pf;
3330 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
3331 int aq_ret = 0;
3332
3333 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3334 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) {
3335 aq_ret = -EINVAL;
3336 goto error_param;
3337 }
3338
3339 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
3340 msg, msglen);
3341
3342error_param:
3343 /* send the response to the VF */
3344 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_RDMA,
3345 aq_ret);
3346}
3347
3348/**
3349 * i40e_vc_rdma_qvmap_msg
3350 * @vf: pointer to the VF info
3351 * @msg: pointer to the msg buffer
3352 * @config: config qvmap or release it
3353 *
3354 * called from the VF for the iwarp msgs
3355 **/
3356static int i40e_vc_rdma_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config)
3357{
3358 struct virtchnl_rdma_qvlist_info *qvlist_info =
3359 (struct virtchnl_rdma_qvlist_info *)msg;
3360 int aq_ret = 0;
3361
3362 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3363 !test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) {
3364 aq_ret = -EINVAL;
3365 goto error_param;
3366 }
3367
3368 if (config) {
3369 if (i40e_config_rdma_qvlist(vf, qvlist_info))
3370 aq_ret = -EINVAL;
3371 } else {
3372 i40e_release_rdma_qvlist(vf);
3373 }
3374
3375error_param:
3376 /* send the response to the VF */
3377 return i40e_vc_send_resp_to_vf(vf,
3378 config ? VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP :
3379 VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP,
3380 aq_ret);
3381}
3382
3383/**
3384 * i40e_vc_config_rss_key
3385 * @vf: pointer to the VF info
3386 * @msg: pointer to the msg buffer
3387 *
3388 * Configure the VF's RSS key
3389 **/
3390static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg)
3391{
3392 struct virtchnl_rss_key *vrk =
3393 (struct virtchnl_rss_key *)msg;
3394 struct i40e_pf *pf = vf->pf;
3395 struct i40e_vsi *vsi = NULL;
3396 int aq_ret = 0;
3397
3398 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3399 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) ||
3400 vrk->key_len != I40E_HKEY_ARRAY_SIZE) {
3401 aq_ret = -EINVAL;
3402 goto err;
3403 }
3404
3405 vsi = pf->vsi[vf->lan_vsi_idx];
3406 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
3407err:
3408 /* send the response to the VF */
3409 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY,
3410 aq_ret);
3411}
3412
3413/**
3414 * i40e_vc_config_rss_lut
3415 * @vf: pointer to the VF info
3416 * @msg: pointer to the msg buffer
3417 *
3418 * Configure the VF's RSS LUT
3419 **/
3420static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg)
3421{
3422 struct virtchnl_rss_lut *vrl =
3423 (struct virtchnl_rss_lut *)msg;
3424 struct i40e_pf *pf = vf->pf;
3425 struct i40e_vsi *vsi = NULL;
3426 int aq_ret = 0;
3427 u16 i;
3428
3429 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE) ||
3430 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) ||
3431 vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) {
3432 aq_ret = -EINVAL;
3433 goto err;
3434 }
3435
3436 for (i = 0; i < vrl->lut_entries; i++)
3437 if (vrl->lut[i] >= vf->num_queue_pairs) {
3438 aq_ret = -EINVAL;
3439 goto err;
3440 }
3441
3442 vsi = pf->vsi[vf->lan_vsi_idx];
3443 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
3444 /* send the response to the VF */
3445err:
3446 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT,
3447 aq_ret);
3448}
3449
3450/**
3451 * i40e_vc_get_rss_hena
3452 * @vf: pointer to the VF info
3453 * @msg: pointer to the msg buffer
3454 *
3455 * Return the RSS HENA bits allowed by the hardware
3456 **/
3457static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg)
3458{
3459 struct virtchnl_rss_hena *vrh = NULL;
3460 struct i40e_pf *pf = vf->pf;
3461 int aq_ret = 0;
3462 int len = 0;
3463
3464 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3465 aq_ret = -EINVAL;
3466 goto err;
3467 }
3468 len = sizeof(struct virtchnl_rss_hena);
3469
3470 vrh = kzalloc(len, GFP_KERNEL);
3471 if (!vrh) {
3472 aq_ret = -ENOMEM;
3473 len = 0;
3474 goto err;
3475 }
3476 vrh->hena = i40e_pf_get_default_rss_hena(pf);
3477err:
3478 /* send the response back to the VF */
3479 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS,
3480 aq_ret, (u8 *)vrh, len);
3481 kfree(vrh);
3482 return aq_ret;
3483}
3484
3485/**
3486 * i40e_vc_set_rss_hena
3487 * @vf: pointer to the VF info
3488 * @msg: pointer to the msg buffer
3489 *
3490 * Set the RSS HENA bits for the VF
3491 **/
3492static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg)
3493{
3494 struct virtchnl_rss_hena *vrh =
3495 (struct virtchnl_rss_hena *)msg;
3496 struct i40e_pf *pf = vf->pf;
3497 struct i40e_hw *hw = &pf->hw;
3498 int aq_ret = 0;
3499
3500 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3501 aq_ret = -EINVAL;
3502 goto err;
3503 }
3504 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);
3505 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
3506 (u32)(vrh->hena >> 32));
3507
3508 /* send the response to the VF */
3509err:
3510 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret);
3511}
3512
3513/**
3514 * i40e_vc_enable_vlan_stripping
3515 * @vf: pointer to the VF info
3516 * @msg: pointer to the msg buffer
3517 *
3518 * Enable vlan header stripping for the VF
3519 **/
3520static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3521{
3522 struct i40e_vsi *vsi;
3523 int aq_ret = 0;
3524
3525 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3526 aq_ret = -EINVAL;
3527 goto err;
3528 }
3529
3530 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3531 i40e_vlan_stripping_enable(vsi);
3532
3533 /* send the response to the VF */
3534err:
3535 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
3536 aq_ret);
3537}
3538
3539/**
3540 * i40e_vc_disable_vlan_stripping
3541 * @vf: pointer to the VF info
3542 * @msg: pointer to the msg buffer
3543 *
3544 * Disable vlan header stripping for the VF
3545 **/
3546static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3547{
3548 struct i40e_vsi *vsi;
3549 int aq_ret = 0;
3550
3551 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3552 aq_ret = -EINVAL;
3553 goto err;
3554 }
3555
3556 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3557 i40e_vlan_stripping_disable(vsi);
3558
3559 /* send the response to the VF */
3560err:
3561 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
3562 aq_ret);
3563}
3564
3565/**
3566 * i40e_validate_cloud_filter
3567 * @vf: pointer to VF structure
3568 * @tc_filter: pointer to filter requested
3569 *
3570 * This function validates cloud filter programmed as TC filter for ADq
3571 **/
3572static int i40e_validate_cloud_filter(struct i40e_vf *vf,
3573 struct virtchnl_filter *tc_filter)
3574{
3575 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec;
3576 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec;
3577 struct i40e_pf *pf = vf->pf;
3578 struct i40e_vsi *vsi = NULL;
3579 struct i40e_mac_filter *f;
3580 struct hlist_node *h;
3581 bool found = false;
3582 int bkt;
3583
3584 if (tc_filter->action != VIRTCHNL_ACTION_TC_REDIRECT) {
3585 dev_info(&pf->pdev->dev,
3586 "VF %d: ADQ doesn't support this action (%d)\n",
3587 vf->vf_id, tc_filter->action);
3588 goto err;
3589 }
3590
3591 /* action_meta is TC number here to which the filter is applied */
3592 if (!tc_filter->action_meta ||
3593 tc_filter->action_meta > vf->num_tc) {
3594 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n",
3595 vf->vf_id, tc_filter->action_meta);
3596 goto err;
3597 }
3598
3599 /* Check filter if it's programmed for advanced mode or basic mode.
3600 * There are two ADq modes (for VF only),
3601 * 1. Basic mode: intended to allow as many filter options as possible
3602 * to be added to a VF in Non-trusted mode. Main goal is
3603 * to add filters to its own MAC and VLAN id.
3604 * 2. Advanced mode: is for allowing filters to be applied other than
3605 * its own MAC or VLAN. This mode requires the VF to be
3606 * Trusted.
3607 */
3608 if (mask.dst_mac[0] && !mask.dst_ip[0]) {
3609 vsi = pf->vsi[vf->lan_vsi_idx];
3610 f = i40e_find_mac(vsi, data.dst_mac);
3611
3612 if (!f) {
3613 dev_info(&pf->pdev->dev,
3614 "Destination MAC %pM doesn't belong to VF %d\n",
3615 data.dst_mac, vf->vf_id);
3616 goto err;
3617 }
3618
3619 if (mask.vlan_id) {
3620 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f,
3621 hlist) {
3622 if (f->vlan == ntohs(data.vlan_id)) {
3623 found = true;
3624 break;
3625 }
3626 }
3627 if (!found) {
3628 dev_info(&pf->pdev->dev,
3629 "VF %d doesn't have any VLAN id %u\n",
3630 vf->vf_id, ntohs(data.vlan_id));
3631 goto err;
3632 }
3633 }
3634 } else {
3635 /* Check if VF is trusted */
3636 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3637 dev_err(&pf->pdev->dev,
3638 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n",
3639 vf->vf_id);
3640 return -EIO;
3641 }
3642 }
3643
3644 if (mask.dst_mac[0] & data.dst_mac[0]) {
3645 if (is_broadcast_ether_addr(data.dst_mac) ||
3646 is_zero_ether_addr(data.dst_mac)) {
3647 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n",
3648 vf->vf_id, data.dst_mac);
3649 goto err;
3650 }
3651 }
3652
3653 if (mask.src_mac[0] & data.src_mac[0]) {
3654 if (is_broadcast_ether_addr(data.src_mac) ||
3655 is_zero_ether_addr(data.src_mac)) {
3656 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n",
3657 vf->vf_id, data.src_mac);
3658 goto err;
3659 }
3660 }
3661
3662 if (mask.dst_port & data.dst_port) {
3663 if (!data.dst_port) {
3664 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n",
3665 vf->vf_id);
3666 goto err;
3667 }
3668 }
3669
3670 if (mask.src_port & data.src_port) {
3671 if (!data.src_port) {
3672 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n",
3673 vf->vf_id);
3674 goto err;
3675 }
3676 }
3677
3678 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW &&
3679 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) {
3680 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n",
3681 vf->vf_id);
3682 goto err;
3683 }
3684
3685 if (mask.vlan_id & data.vlan_id) {
3686 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) {
3687 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n",
3688 vf->vf_id);
3689 goto err;
3690 }
3691 }
3692
3693 return 0;
3694err:
3695 return -EIO;
3696}
3697
3698/**
3699 * i40e_find_vsi_from_seid - searches for the vsi with the given seid
3700 * @vf: pointer to the VF info
3701 * @seid: seid of the vsi it is searching for
3702 **/
3703static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid)
3704{
3705 struct i40e_pf *pf = vf->pf;
3706 struct i40e_vsi *vsi = NULL;
3707 int i;
3708
3709 for (i = 0; i < vf->num_tc ; i++) {
3710 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id);
3711 if (vsi && vsi->seid == seid)
3712 return vsi;
3713 }
3714 return NULL;
3715}
3716
3717/**
3718 * i40e_del_all_cloud_filters
3719 * @vf: pointer to the VF info
3720 *
3721 * This function deletes all cloud filters
3722 **/
3723static void i40e_del_all_cloud_filters(struct i40e_vf *vf)
3724{
3725 struct i40e_cloud_filter *cfilter = NULL;
3726 struct i40e_pf *pf = vf->pf;
3727 struct i40e_vsi *vsi = NULL;
3728 struct hlist_node *node;
3729 int ret;
3730
3731 hlist_for_each_entry_safe(cfilter, node,
3732 &vf->cloud_filter_list, cloud_node) {
3733 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid);
3734
3735 if (!vsi) {
3736 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n",
3737 vf->vf_id, cfilter->seid);
3738 continue;
3739 }
3740
3741 if (cfilter->dst_port)
3742 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter,
3743 false);
3744 else
3745 ret = i40e_add_del_cloud_filter(vsi, cfilter, false);
3746 if (ret)
3747 dev_err(&pf->pdev->dev,
3748 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n",
3749 vf->vf_id, ERR_PTR(ret),
3750 i40e_aq_str(&pf->hw,
3751 pf->hw.aq.asq_last_status));
3752
3753 hlist_del(&cfilter->cloud_node);
3754 kfree(cfilter);
3755 vf->num_cloud_filters--;
3756 }
3757}
3758
3759/**
3760 * i40e_vc_del_cloud_filter
3761 * @vf: pointer to the VF info
3762 * @msg: pointer to the msg buffer
3763 *
3764 * This function deletes a cloud filter programmed as TC filter for ADq
3765 **/
3766static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg)
3767{
3768 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3769 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3770 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3771 struct i40e_cloud_filter cfilter, *cf = NULL;
3772 struct i40e_pf *pf = vf->pf;
3773 struct i40e_vsi *vsi = NULL;
3774 struct hlist_node *node;
3775 int aq_ret = 0;
3776 int i, ret;
3777
3778 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3779 aq_ret = -EINVAL;
3780 goto err;
3781 }
3782
3783 if (!vf->adq_enabled) {
3784 dev_info(&pf->pdev->dev,
3785 "VF %d: ADq not enabled, can't apply cloud filter\n",
3786 vf->vf_id);
3787 aq_ret = -EINVAL;
3788 goto err;
3789 }
3790
3791 if (i40e_validate_cloud_filter(vf, vcf)) {
3792 dev_info(&pf->pdev->dev,
3793 "VF %d: Invalid input, can't apply cloud filter\n",
3794 vf->vf_id);
3795 aq_ret = -EINVAL;
3796 goto err;
3797 }
3798
3799 memset(&cfilter, 0, sizeof(cfilter));
3800 /* parse destination mac address */
3801 for (i = 0; i < ETH_ALEN; i++)
3802 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3803
3804 /* parse source mac address */
3805 for (i = 0; i < ETH_ALEN; i++)
3806 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3807
3808 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id;
3809 cfilter.dst_port = mask.dst_port & tcf.dst_port;
3810 cfilter.src_port = mask.src_port & tcf.src_port;
3811
3812 switch (vcf->flow_type) {
3813 case VIRTCHNL_TCP_V4_FLOW:
3814 cfilter.n_proto = ETH_P_IP;
3815 if (mask.dst_ip[0] & tcf.dst_ip[0])
3816 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip,
3817 ARRAY_SIZE(tcf.dst_ip));
3818 else if (mask.src_ip[0] & tcf.dst_ip[0])
3819 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip,
3820 ARRAY_SIZE(tcf.dst_ip));
3821 break;
3822 case VIRTCHNL_TCP_V6_FLOW:
3823 cfilter.n_proto = ETH_P_IPV6;
3824 if (mask.dst_ip[3] & tcf.dst_ip[3])
3825 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip,
3826 sizeof(cfilter.ip.v6.dst_ip6));
3827 if (mask.src_ip[3] & tcf.src_ip[3])
3828 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip,
3829 sizeof(cfilter.ip.v6.src_ip6));
3830 break;
3831 default:
3832 /* TC filter can be configured based on different combinations
3833 * and in this case IP is not a part of filter config
3834 */
3835 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3836 vf->vf_id);
3837 }
3838
3839 /* get the vsi to which the tc belongs to */
3840 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3841 cfilter.seid = vsi->seid;
3842 cfilter.flags = vcf->field_flags;
3843
3844 /* Deleting TC filter */
3845 if (tcf.dst_port)
3846 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false);
3847 else
3848 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false);
3849 if (ret) {
3850 dev_err(&pf->pdev->dev,
3851 "VF %d: Failed to delete cloud filter, err %pe aq_err %s\n",
3852 vf->vf_id, ERR_PTR(ret),
3853 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3854 goto err;
3855 }
3856
3857 hlist_for_each_entry_safe(cf, node,
3858 &vf->cloud_filter_list, cloud_node) {
3859 if (cf->seid != cfilter.seid)
3860 continue;
3861 if (mask.dst_port)
3862 if (cfilter.dst_port != cf->dst_port)
3863 continue;
3864 if (mask.dst_mac[0])
3865 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac))
3866 continue;
3867 /* for ipv4 data to be valid, only first byte of mask is set */
3868 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0])
3869 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip,
3870 ARRAY_SIZE(tcf.dst_ip)))
3871 continue;
3872 /* for ipv6, mask is set for all sixteen bytes (4 words) */
3873 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3])
3874 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6,
3875 sizeof(cfilter.ip.v6.src_ip6)))
3876 continue;
3877 if (mask.vlan_id)
3878 if (cfilter.vlan_id != cf->vlan_id)
3879 continue;
3880
3881 hlist_del(&cf->cloud_node);
3882 kfree(cf);
3883 vf->num_cloud_filters--;
3884 }
3885
3886err:
3887 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER,
3888 aq_ret);
3889}
3890
3891/**
3892 * i40e_vc_add_cloud_filter
3893 * @vf: pointer to the VF info
3894 * @msg: pointer to the msg buffer
3895 *
3896 * This function adds a cloud filter programmed as TC filter for ADq
3897 **/
3898static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
3899{
3900 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3901 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3902 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3903 struct i40e_cloud_filter *cfilter = NULL;
3904 struct i40e_pf *pf = vf->pf;
3905 struct i40e_vsi *vsi = NULL;
3906 int aq_ret = 0;
3907 int i;
3908
3909 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
3910 aq_ret = -EINVAL;
3911 goto err_out;
3912 }
3913
3914 if (!vf->adq_enabled) {
3915 dev_info(&pf->pdev->dev,
3916 "VF %d: ADq is not enabled, can't apply cloud filter\n",
3917 vf->vf_id);
3918 aq_ret = -EINVAL;
3919 goto err_out;
3920 }
3921
3922 if (i40e_validate_cloud_filter(vf, vcf)) {
3923 dev_info(&pf->pdev->dev,
3924 "VF %d: Invalid input/s, can't apply cloud filter\n",
3925 vf->vf_id);
3926 aq_ret = -EINVAL;
3927 goto err_out;
3928 }
3929
3930 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL);
3931 if (!cfilter) {
3932 aq_ret = -ENOMEM;
3933 goto err_out;
3934 }
3935
3936 /* parse destination mac address */
3937 for (i = 0; i < ETH_ALEN; i++)
3938 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3939
3940 /* parse source mac address */
3941 for (i = 0; i < ETH_ALEN; i++)
3942 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3943
3944 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id;
3945 cfilter->dst_port = mask.dst_port & tcf.dst_port;
3946 cfilter->src_port = mask.src_port & tcf.src_port;
3947
3948 switch (vcf->flow_type) {
3949 case VIRTCHNL_TCP_V4_FLOW:
3950 cfilter->n_proto = ETH_P_IP;
3951 if (mask.dst_ip[0] & tcf.dst_ip[0])
3952 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip,
3953 ARRAY_SIZE(tcf.dst_ip));
3954 else if (mask.src_ip[0] & tcf.dst_ip[0])
3955 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip,
3956 ARRAY_SIZE(tcf.dst_ip));
3957 break;
3958 case VIRTCHNL_TCP_V6_FLOW:
3959 cfilter->n_proto = ETH_P_IPV6;
3960 if (mask.dst_ip[3] & tcf.dst_ip[3])
3961 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip,
3962 sizeof(cfilter->ip.v6.dst_ip6));
3963 if (mask.src_ip[3] & tcf.src_ip[3])
3964 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip,
3965 sizeof(cfilter->ip.v6.src_ip6));
3966 break;
3967 default:
3968 /* TC filter can be configured based on different combinations
3969 * and in this case IP is not a part of filter config
3970 */
3971 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3972 vf->vf_id);
3973 }
3974
3975 /* get the VSI to which the TC belongs to */
3976 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3977 cfilter->seid = vsi->seid;
3978 cfilter->flags = vcf->field_flags;
3979
3980 /* Adding cloud filter programmed as TC filter */
3981 if (tcf.dst_port)
3982 aq_ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true);
3983 else
3984 aq_ret = i40e_add_del_cloud_filter(vsi, cfilter, true);
3985 if (aq_ret) {
3986 dev_err(&pf->pdev->dev,
3987 "VF %d: Failed to add cloud filter, err %pe aq_err %s\n",
3988 vf->vf_id, ERR_PTR(aq_ret),
3989 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3990 goto err_free;
3991 }
3992
3993 INIT_HLIST_NODE(&cfilter->cloud_node);
3994 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list);
3995 /* release the pointer passing it to the collection */
3996 cfilter = NULL;
3997 vf->num_cloud_filters++;
3998err_free:
3999 kfree(cfilter);
4000err_out:
4001 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER,
4002 aq_ret);
4003}
4004
4005/**
4006 * i40e_vc_add_qch_msg: Add queue channel and enable ADq
4007 * @vf: pointer to the VF info
4008 * @msg: pointer to the msg buffer
4009 **/
4010static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
4011{
4012 struct virtchnl_tc_info *tci =
4013 (struct virtchnl_tc_info *)msg;
4014 struct i40e_pf *pf = vf->pf;
4015 struct i40e_link_status *ls = &pf->hw.phy.link_info;
4016 int i, adq_request_qps = 0;
4017 int aq_ret = 0;
4018 u64 speed = 0;
4019
4020 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
4021 aq_ret = -EINVAL;
4022 goto err;
4023 }
4024
4025 /* ADq cannot be applied if spoof check is ON */
4026 if (vf->spoofchk) {
4027 dev_err(&pf->pdev->dev,
4028 "Spoof check is ON, turn it OFF to enable ADq\n");
4029 aq_ret = -EINVAL;
4030 goto err;
4031 }
4032
4033 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) {
4034 dev_err(&pf->pdev->dev,
4035 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n",
4036 vf->vf_id);
4037 aq_ret = -EINVAL;
4038 goto err;
4039 }
4040
4041 /* max number of traffic classes for VF currently capped at 4 */
4042 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) {
4043 dev_err(&pf->pdev->dev,
4044 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n",
4045 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI);
4046 aq_ret = -EINVAL;
4047 goto err;
4048 }
4049
4050 /* validate queues for each TC */
4051 for (i = 0; i < tci->num_tc; i++)
4052 if (!tci->list[i].count ||
4053 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) {
4054 dev_err(&pf->pdev->dev,
4055 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n",
4056 vf->vf_id, i, tci->list[i].count,
4057 I40E_DEFAULT_QUEUES_PER_VF);
4058 aq_ret = -EINVAL;
4059 goto err;
4060 }
4061
4062 /* need Max VF queues but already have default number of queues */
4063 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF;
4064
4065 if (pf->queues_left < adq_request_qps) {
4066 dev_err(&pf->pdev->dev,
4067 "No queues left to allocate to VF %d\n",
4068 vf->vf_id);
4069 aq_ret = -EINVAL;
4070 goto err;
4071 } else {
4072 /* we need to allocate max VF queues to enable ADq so as to
4073 * make sure ADq enabled VF always gets back queues when it
4074 * goes through a reset.
4075 */
4076 vf->num_queue_pairs = I40E_MAX_VF_QUEUES;
4077 }
4078
4079 /* get link speed in MB to validate rate limit */
4080 speed = i40e_vc_link_speed2mbps(ls->link_speed);
4081 if (speed == SPEED_UNKNOWN) {
4082 dev_err(&pf->pdev->dev,
4083 "Cannot detect link speed\n");
4084 aq_ret = -EINVAL;
4085 goto err;
4086 }
4087
4088 /* parse data from the queue channel info */
4089 vf->num_tc = tci->num_tc;
4090 for (i = 0; i < vf->num_tc; i++) {
4091 if (tci->list[i].max_tx_rate) {
4092 if (tci->list[i].max_tx_rate > speed) {
4093 dev_err(&pf->pdev->dev,
4094 "Invalid max tx rate %llu specified for VF %d.",
4095 tci->list[i].max_tx_rate,
4096 vf->vf_id);
4097 aq_ret = -EINVAL;
4098 goto err;
4099 } else {
4100 vf->ch[i].max_tx_rate =
4101 tci->list[i].max_tx_rate;
4102 }
4103 }
4104 vf->ch[i].num_qps = tci->list[i].count;
4105 }
4106
4107 /* set this flag only after making sure all inputs are sane */
4108 vf->adq_enabled = true;
4109
4110 /* reset the VF in order to allocate resources */
4111 i40e_vc_reset_vf(vf, true);
4112
4113 return 0;
4114
4115 /* send the response to the VF */
4116err:
4117 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS,
4118 aq_ret);
4119}
4120
4121/**
4122 * i40e_vc_del_qch_msg
4123 * @vf: pointer to the VF info
4124 * @msg: pointer to the msg buffer
4125 **/
4126static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
4127{
4128 struct i40e_pf *pf = vf->pf;
4129 int aq_ret = 0;
4130
4131 if (!i40e_sync_vf_state(vf, I40E_VF_STATE_ACTIVE)) {
4132 aq_ret = -EINVAL;
4133 goto err;
4134 }
4135
4136 if (vf->adq_enabled) {
4137 i40e_del_all_cloud_filters(vf);
4138 i40e_del_qch(vf);
4139 vf->adq_enabled = false;
4140 vf->num_tc = 0;
4141 dev_info(&pf->pdev->dev,
4142 "Deleting Queue Channels and cloud filters for ADq on VF %d\n",
4143 vf->vf_id);
4144 } else {
4145 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n",
4146 vf->vf_id);
4147 aq_ret = -EINVAL;
4148 }
4149
4150 /* reset the VF in order to allocate resources */
4151 i40e_vc_reset_vf(vf, true);
4152
4153 return 0;
4154
4155err:
4156 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS,
4157 aq_ret);
4158}
4159
4160/**
4161 * i40e_vc_process_vf_msg
4162 * @pf: pointer to the PF structure
4163 * @vf_id: source VF id
4164 * @v_opcode: operation code
4165 * @v_retval: unused return value code
4166 * @msg: pointer to the msg buffer
4167 * @msglen: msg length
4168 *
4169 * called from the common aeq/arq handler to
4170 * process request from VF
4171 **/
4172int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
4173 u32 __always_unused v_retval, u8 *msg, u16 msglen)
4174{
4175 struct i40e_hw *hw = &pf->hw;
4176 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
4177 struct i40e_vf *vf;
4178 int ret;
4179
4180 pf->vf_aq_requests++;
4181 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs)
4182 return -EINVAL;
4183 vf = &(pf->vf[local_vf_id]);
4184
4185 /* Check if VF is disabled. */
4186 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states))
4187 return -EINVAL;
4188
4189 /* perform basic checks on the msg */
4190 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
4191
4192 if (ret) {
4193 i40e_vc_send_resp_to_vf(vf, v_opcode, -EINVAL);
4194 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
4195 local_vf_id, v_opcode, msglen);
4196 return ret;
4197 }
4198
4199 switch (v_opcode) {
4200 case VIRTCHNL_OP_VERSION:
4201 ret = i40e_vc_get_version_msg(vf, msg);
4202 break;
4203 case VIRTCHNL_OP_GET_VF_RESOURCES:
4204 ret = i40e_vc_get_vf_resources_msg(vf, msg);
4205 i40e_vc_notify_vf_link_state(vf);
4206 break;
4207 case VIRTCHNL_OP_RESET_VF:
4208 i40e_vc_reset_vf(vf, false);
4209 ret = 0;
4210 break;
4211 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
4212 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg);
4213 break;
4214 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
4215 ret = i40e_vc_config_queues_msg(vf, msg);
4216 break;
4217 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
4218 ret = i40e_vc_config_irq_map_msg(vf, msg);
4219 break;
4220 case VIRTCHNL_OP_ENABLE_QUEUES:
4221 ret = i40e_vc_enable_queues_msg(vf, msg);
4222 i40e_vc_notify_vf_link_state(vf);
4223 break;
4224 case VIRTCHNL_OP_DISABLE_QUEUES:
4225 ret = i40e_vc_disable_queues_msg(vf, msg);
4226 break;
4227 case VIRTCHNL_OP_ADD_ETH_ADDR:
4228 ret = i40e_vc_add_mac_addr_msg(vf, msg);
4229 break;
4230 case VIRTCHNL_OP_DEL_ETH_ADDR:
4231 ret = i40e_vc_del_mac_addr_msg(vf, msg);
4232 break;
4233 case VIRTCHNL_OP_ADD_VLAN:
4234 ret = i40e_vc_add_vlan_msg(vf, msg);
4235 break;
4236 case VIRTCHNL_OP_DEL_VLAN:
4237 ret = i40e_vc_remove_vlan_msg(vf, msg);
4238 break;
4239 case VIRTCHNL_OP_GET_STATS:
4240 ret = i40e_vc_get_stats_msg(vf, msg);
4241 break;
4242 case VIRTCHNL_OP_RDMA:
4243 ret = i40e_vc_rdma_msg(vf, msg, msglen);
4244 break;
4245 case VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP:
4246 ret = i40e_vc_rdma_qvmap_msg(vf, msg, true);
4247 break;
4248 case VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP:
4249 ret = i40e_vc_rdma_qvmap_msg(vf, msg, false);
4250 break;
4251 case VIRTCHNL_OP_CONFIG_RSS_KEY:
4252 ret = i40e_vc_config_rss_key(vf, msg);
4253 break;
4254 case VIRTCHNL_OP_CONFIG_RSS_LUT:
4255 ret = i40e_vc_config_rss_lut(vf, msg);
4256 break;
4257 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
4258 ret = i40e_vc_get_rss_hena(vf, msg);
4259 break;
4260 case VIRTCHNL_OP_SET_RSS_HENA:
4261 ret = i40e_vc_set_rss_hena(vf, msg);
4262 break;
4263 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
4264 ret = i40e_vc_enable_vlan_stripping(vf, msg);
4265 break;
4266 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
4267 ret = i40e_vc_disable_vlan_stripping(vf, msg);
4268 break;
4269 case VIRTCHNL_OP_REQUEST_QUEUES:
4270 ret = i40e_vc_request_queues_msg(vf, msg);
4271 break;
4272 case VIRTCHNL_OP_ENABLE_CHANNELS:
4273 ret = i40e_vc_add_qch_msg(vf, msg);
4274 break;
4275 case VIRTCHNL_OP_DISABLE_CHANNELS:
4276 ret = i40e_vc_del_qch_msg(vf, msg);
4277 break;
4278 case VIRTCHNL_OP_ADD_CLOUD_FILTER:
4279 ret = i40e_vc_add_cloud_filter(vf, msg);
4280 break;
4281 case VIRTCHNL_OP_DEL_CLOUD_FILTER:
4282 ret = i40e_vc_del_cloud_filter(vf, msg);
4283 break;
4284 case VIRTCHNL_OP_UNKNOWN:
4285 default:
4286 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
4287 v_opcode, local_vf_id);
4288 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
4289 -EOPNOTSUPP);
4290 break;
4291 }
4292
4293 return ret;
4294}
4295
4296/**
4297 * i40e_vc_process_vflr_event
4298 * @pf: pointer to the PF structure
4299 *
4300 * called from the vlfr irq handler to
4301 * free up VF resources and state variables
4302 **/
4303int i40e_vc_process_vflr_event(struct i40e_pf *pf)
4304{
4305 struct i40e_hw *hw = &pf->hw;
4306 u32 reg, reg_idx, bit_idx;
4307 struct i40e_vf *vf;
4308 int vf_id;
4309
4310 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state))
4311 return 0;
4312
4313 /* Re-enable the VFLR interrupt cause here, before looking for which
4314 * VF got reset. Otherwise, if another VF gets a reset while the
4315 * first one is being processed, that interrupt will be lost, and
4316 * that VF will be stuck in reset forever.
4317 */
4318 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
4319 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
4320 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
4321 i40e_flush(hw);
4322
4323 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state);
4324 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
4325 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
4326 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
4327 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
4328 vf = &pf->vf[vf_id];
4329 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
4330 if (reg & BIT(bit_idx))
4331 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
4332 i40e_reset_vf(vf, true);
4333 }
4334
4335 return 0;
4336}
4337
4338/**
4339 * i40e_validate_vf
4340 * @pf: the physical function
4341 * @vf_id: VF identifier
4342 *
4343 * Check that the VF is enabled and the VSI exists.
4344 *
4345 * Returns 0 on success, negative on failure
4346 **/
4347static int i40e_validate_vf(struct i40e_pf *pf, int vf_id)
4348{
4349 struct i40e_vsi *vsi;
4350 struct i40e_vf *vf;
4351 int ret = 0;
4352
4353 if (vf_id >= pf->num_alloc_vfs) {
4354 dev_err(&pf->pdev->dev,
4355 "Invalid VF Identifier %d\n", vf_id);
4356 ret = -EINVAL;
4357 goto err_out;
4358 }
4359 vf = &pf->vf[vf_id];
4360 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id);
4361 if (!vsi)
4362 ret = -EINVAL;
4363err_out:
4364 return ret;
4365}
4366
4367/**
4368 * i40e_check_vf_init_timeout
4369 * @vf: the virtual function
4370 *
4371 * Check that the VF's initialization was successfully done and if not
4372 * wait up to 300ms for its finish.
4373 *
4374 * Returns true when VF is initialized, false on timeout
4375 **/
4376static bool i40e_check_vf_init_timeout(struct i40e_vf *vf)
4377{
4378 int i;
4379
4380 /* When the VF is resetting wait until it is done.
4381 * It can take up to 200 milliseconds, but wait for
4382 * up to 300 milliseconds to be safe.
4383 */
4384 for (i = 0; i < 15; i++) {
4385 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states))
4386 return true;
4387 msleep(20);
4388 }
4389
4390 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4391 dev_err(&vf->pf->pdev->dev,
4392 "VF %d still in reset. Try again.\n", vf->vf_id);
4393 return false;
4394 }
4395
4396 return true;
4397}
4398
4399/**
4400 * i40e_ndo_set_vf_mac
4401 * @netdev: network interface device structure
4402 * @vf_id: VF identifier
4403 * @mac: mac address
4404 *
4405 * program VF mac address
4406 **/
4407int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
4408{
4409 struct i40e_netdev_priv *np = netdev_priv(netdev);
4410 struct i40e_vsi *vsi = np->vsi;
4411 struct i40e_pf *pf = vsi->back;
4412 struct i40e_mac_filter *f;
4413 struct i40e_vf *vf;
4414 int ret = 0;
4415 struct hlist_node *h;
4416 int bkt;
4417
4418 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4419 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4420 return -EAGAIN;
4421 }
4422
4423 /* validate the request */
4424 ret = i40e_validate_vf(pf, vf_id);
4425 if (ret)
4426 goto error_param;
4427
4428 vf = &pf->vf[vf_id];
4429 if (!i40e_check_vf_init_timeout(vf)) {
4430 ret = -EAGAIN;
4431 goto error_param;
4432 }
4433 vsi = pf->vsi[vf->lan_vsi_idx];
4434
4435 if (is_multicast_ether_addr(mac)) {
4436 dev_err(&pf->pdev->dev,
4437 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
4438 ret = -EINVAL;
4439 goto error_param;
4440 }
4441
4442 /* Lock once because below invoked function add/del_filter requires
4443 * mac_filter_hash_lock to be held
4444 */
4445 spin_lock_bh(&vsi->mac_filter_hash_lock);
4446
4447 /* delete the temporary mac address */
4448 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
4449 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
4450
4451 /* Delete all the filters for this VSI - we're going to kill it
4452 * anyway.
4453 */
4454 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
4455 __i40e_del_filter(vsi, f);
4456
4457 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4458
4459 /* program mac filter */
4460 if (i40e_sync_vsi_filters(vsi)) {
4461 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
4462 ret = -EIO;
4463 goto error_param;
4464 }
4465 ether_addr_copy(vf->default_lan_addr.addr, mac);
4466
4467 if (is_zero_ether_addr(mac)) {
4468 vf->pf_set_mac = false;
4469 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id);
4470 } else {
4471 vf->pf_set_mac = true;
4472 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n",
4473 mac, vf_id);
4474 }
4475
4476 /* Force the VF interface down so it has to bring up with new MAC
4477 * address
4478 */
4479 i40e_vc_reset_vf(vf, true);
4480 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n");
4481
4482error_param:
4483 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4484 return ret;
4485}
4486
4487/**
4488 * i40e_ndo_set_vf_port_vlan
4489 * @netdev: network interface device structure
4490 * @vf_id: VF identifier
4491 * @vlan_id: mac address
4492 * @qos: priority setting
4493 * @vlan_proto: vlan protocol
4494 *
4495 * program VF vlan id and/or qos
4496 **/
4497int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
4498 u16 vlan_id, u8 qos, __be16 vlan_proto)
4499{
4500 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
4501 struct i40e_netdev_priv *np = netdev_priv(netdev);
4502 bool allmulti = false, alluni = false;
4503 struct i40e_pf *pf = np->vsi->back;
4504 struct i40e_vsi *vsi;
4505 struct i40e_vf *vf;
4506 int ret = 0;
4507
4508 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4509 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4510 return -EAGAIN;
4511 }
4512
4513 /* validate the request */
4514 ret = i40e_validate_vf(pf, vf_id);
4515 if (ret)
4516 goto error_pvid;
4517
4518 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
4519 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
4520 ret = -EINVAL;
4521 goto error_pvid;
4522 }
4523
4524 if (vlan_proto != htons(ETH_P_8021Q)) {
4525 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
4526 ret = -EPROTONOSUPPORT;
4527 goto error_pvid;
4528 }
4529
4530 vf = &pf->vf[vf_id];
4531 if (!i40e_check_vf_init_timeout(vf)) {
4532 ret = -EAGAIN;
4533 goto error_pvid;
4534 }
4535 vsi = pf->vsi[vf->lan_vsi_idx];
4536
4537 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
4538 /* duplicate request, so just return success */
4539 goto error_pvid;
4540
4541 i40e_vlan_stripping_enable(vsi);
4542
4543 /* Locked once because multiple functions below iterate list */
4544 spin_lock_bh(&vsi->mac_filter_hash_lock);
4545
4546 /* Check for condition where there was already a port VLAN ID
4547 * filter set and now it is being deleted by setting it to zero.
4548 * Additionally check for the condition where there was a port
4549 * VLAN but now there is a new and different port VLAN being set.
4550 * Before deleting all the old VLAN filters we must add new ones
4551 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
4552 * MAC addresses deleted.
4553 */
4554 if ((!(vlan_id || qos) ||
4555 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
4556 vsi->info.pvid) {
4557 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
4558 if (ret) {
4559 dev_info(&vsi->back->pdev->dev,
4560 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4561 vsi->back->hw.aq.asq_last_status);
4562 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4563 goto error_pvid;
4564 }
4565 }
4566
4567 if (vsi->info.pvid) {
4568 /* remove all filters on the old VLAN */
4569 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &
4570 VLAN_VID_MASK));
4571 }
4572
4573 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4574
4575 /* disable promisc modes in case they were enabled */
4576 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id,
4577 allmulti, alluni);
4578 if (ret) {
4579 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n");
4580 goto error_pvid;
4581 }
4582
4583 if (vlan_id || qos)
4584 ret = i40e_vsi_add_pvid(vsi, vlanprio);
4585 else
4586 i40e_vsi_remove_pvid(vsi);
4587 spin_lock_bh(&vsi->mac_filter_hash_lock);
4588
4589 if (vlan_id) {
4590 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
4591 vlan_id, qos, vf_id);
4592
4593 /* add new VLAN filter for each MAC */
4594 ret = i40e_add_vlan_all_mac(vsi, vlan_id);
4595 if (ret) {
4596 dev_info(&vsi->back->pdev->dev,
4597 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4598 vsi->back->hw.aq.asq_last_status);
4599 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4600 goto error_pvid;
4601 }
4602
4603 /* remove the previously added non-VLAN MAC filters */
4604 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
4605 }
4606
4607 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4608
4609 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
4610 alluni = true;
4611
4612 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
4613 allmulti = true;
4614
4615 /* Schedule the worker thread to take care of applying changes */
4616 i40e_service_event_schedule(vsi->back);
4617
4618 if (ret) {
4619 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
4620 goto error_pvid;
4621 }
4622
4623 /* The Port VLAN needs to be saved across resets the same as the
4624 * default LAN MAC address.
4625 */
4626 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
4627
4628 i40e_vc_reset_vf(vf, true);
4629 /* During reset the VF got a new VSI, so refresh a pointer. */
4630 vsi = pf->vsi[vf->lan_vsi_idx];
4631
4632 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni);
4633 if (ret) {
4634 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n");
4635 goto error_pvid;
4636 }
4637
4638 ret = 0;
4639
4640error_pvid:
4641 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4642 return ret;
4643}
4644
4645/**
4646 * i40e_ndo_set_vf_bw
4647 * @netdev: network interface device structure
4648 * @vf_id: VF identifier
4649 * @min_tx_rate: Minimum Tx rate
4650 * @max_tx_rate: Maximum Tx rate
4651 *
4652 * configure VF Tx rate
4653 **/
4654int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
4655 int max_tx_rate)
4656{
4657 struct i40e_netdev_priv *np = netdev_priv(netdev);
4658 struct i40e_pf *pf = np->vsi->back;
4659 struct i40e_vsi *vsi;
4660 struct i40e_vf *vf;
4661 int ret = 0;
4662
4663 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4664 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4665 return -EAGAIN;
4666 }
4667
4668 /* validate the request */
4669 ret = i40e_validate_vf(pf, vf_id);
4670 if (ret)
4671 goto error;
4672
4673 if (min_tx_rate) {
4674 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
4675 min_tx_rate, vf_id);
4676 ret = -EINVAL;
4677 goto error;
4678 }
4679
4680 vf = &pf->vf[vf_id];
4681 if (!i40e_check_vf_init_timeout(vf)) {
4682 ret = -EAGAIN;
4683 goto error;
4684 }
4685 vsi = pf->vsi[vf->lan_vsi_idx];
4686
4687 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate);
4688 if (ret)
4689 goto error;
4690
4691 vf->tx_rate = max_tx_rate;
4692error:
4693 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4694 return ret;
4695}
4696
4697/**
4698 * i40e_ndo_get_vf_config
4699 * @netdev: network interface device structure
4700 * @vf_id: VF identifier
4701 * @ivi: VF configuration structure
4702 *
4703 * return VF configuration
4704 **/
4705int i40e_ndo_get_vf_config(struct net_device *netdev,
4706 int vf_id, struct ifla_vf_info *ivi)
4707{
4708 struct i40e_netdev_priv *np = netdev_priv(netdev);
4709 struct i40e_vsi *vsi = np->vsi;
4710 struct i40e_pf *pf = vsi->back;
4711 struct i40e_vf *vf;
4712 int ret = 0;
4713
4714 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4715 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4716 return -EAGAIN;
4717 }
4718
4719 /* validate the request */
4720 ret = i40e_validate_vf(pf, vf_id);
4721 if (ret)
4722 goto error_param;
4723
4724 vf = &pf->vf[vf_id];
4725 /* first vsi is always the LAN vsi */
4726 vsi = pf->vsi[vf->lan_vsi_idx];
4727 if (!vsi) {
4728 ret = -ENOENT;
4729 goto error_param;
4730 }
4731
4732 ivi->vf = vf_id;
4733
4734 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
4735
4736 ivi->max_tx_rate = vf->tx_rate;
4737 ivi->min_tx_rate = 0;
4738 ivi->vlan = le16_get_bits(vsi->info.pvid, I40E_VLAN_MASK);
4739 ivi->qos = le16_get_bits(vsi->info.pvid, I40E_PRIORITY_MASK);
4740 if (vf->link_forced == false)
4741 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
4742 else if (vf->link_up == true)
4743 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
4744 else
4745 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
4746 ivi->spoofchk = vf->spoofchk;
4747 ivi->trusted = vf->trusted;
4748 ret = 0;
4749
4750error_param:
4751 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4752 return ret;
4753}
4754
4755/**
4756 * i40e_ndo_set_vf_link_state
4757 * @netdev: network interface device structure
4758 * @vf_id: VF identifier
4759 * @link: required link state
4760 *
4761 * Set the link state of a specified VF, regardless of physical link state
4762 **/
4763int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
4764{
4765 struct i40e_netdev_priv *np = netdev_priv(netdev);
4766 struct i40e_pf *pf = np->vsi->back;
4767 struct i40e_link_status *ls = &pf->hw.phy.link_info;
4768 struct virtchnl_pf_event pfe;
4769 struct i40e_hw *hw = &pf->hw;
4770 struct i40e_vsi *vsi;
4771 unsigned long q_map;
4772 struct i40e_vf *vf;
4773 int abs_vf_id;
4774 int ret = 0;
4775 int tmp;
4776
4777 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4778 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4779 return -EAGAIN;
4780 }
4781
4782 /* validate the request */
4783 if (vf_id >= pf->num_alloc_vfs) {
4784 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4785 ret = -EINVAL;
4786 goto error_out;
4787 }
4788
4789 vf = &pf->vf[vf_id];
4790 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
4791
4792 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
4793 pfe.severity = PF_EVENT_SEVERITY_INFO;
4794
4795 switch (link) {
4796 case IFLA_VF_LINK_STATE_AUTO:
4797 vf->link_forced = false;
4798 vf->is_disabled_from_host = false;
4799 /* reset needed to reinit VF resources */
4800 i40e_vc_reset_vf(vf, true);
4801 i40e_set_vf_link_state(vf, &pfe, ls);
4802 break;
4803 case IFLA_VF_LINK_STATE_ENABLE:
4804 vf->link_forced = true;
4805 vf->link_up = true;
4806 vf->is_disabled_from_host = false;
4807 /* reset needed to reinit VF resources */
4808 i40e_vc_reset_vf(vf, true);
4809 i40e_set_vf_link_state(vf, &pfe, ls);
4810 break;
4811 case IFLA_VF_LINK_STATE_DISABLE:
4812 vf->link_forced = true;
4813 vf->link_up = false;
4814 i40e_set_vf_link_state(vf, &pfe, ls);
4815
4816 vsi = pf->vsi[vf->lan_vsi_idx];
4817 q_map = BIT(vsi->num_queue_pairs) - 1;
4818
4819 vf->is_disabled_from_host = true;
4820
4821 /* Try to stop both Tx&Rx rings even if one of the calls fails
4822 * to ensure we stop the rings even in case of errors.
4823 * If any of them returns with an error then the first
4824 * error that occurred will be returned.
4825 */
4826 tmp = i40e_ctrl_vf_tx_rings(vsi, q_map, false);
4827 ret = i40e_ctrl_vf_rx_rings(vsi, q_map, false);
4828
4829 ret = tmp ? tmp : ret;
4830 break;
4831 default:
4832 ret = -EINVAL;
4833 goto error_out;
4834 }
4835 /* Notify the VF of its new link state */
4836 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
4837 0, (u8 *)&pfe, sizeof(pfe), NULL);
4838
4839error_out:
4840 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4841 return ret;
4842}
4843
4844/**
4845 * i40e_ndo_set_vf_spoofchk
4846 * @netdev: network interface device structure
4847 * @vf_id: VF identifier
4848 * @enable: flag to enable or disable feature
4849 *
4850 * Enable or disable VF spoof checking
4851 **/
4852int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
4853{
4854 struct i40e_netdev_priv *np = netdev_priv(netdev);
4855 struct i40e_vsi *vsi = np->vsi;
4856 struct i40e_pf *pf = vsi->back;
4857 struct i40e_vsi_context ctxt;
4858 struct i40e_hw *hw = &pf->hw;
4859 struct i40e_vf *vf;
4860 int ret = 0;
4861
4862 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4863 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4864 return -EAGAIN;
4865 }
4866
4867 /* validate the request */
4868 if (vf_id >= pf->num_alloc_vfs) {
4869 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4870 ret = -EINVAL;
4871 goto out;
4872 }
4873
4874 vf = &(pf->vf[vf_id]);
4875 if (!i40e_check_vf_init_timeout(vf)) {
4876 ret = -EAGAIN;
4877 goto out;
4878 }
4879
4880 if (enable == vf->spoofchk)
4881 goto out;
4882
4883 vf->spoofchk = enable;
4884 memset(&ctxt, 0, sizeof(ctxt));
4885 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
4886 ctxt.pf_num = pf->hw.pf_id;
4887 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
4888 if (enable)
4889 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
4890 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
4891 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
4892 if (ret) {
4893 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
4894 ret);
4895 ret = -EIO;
4896 }
4897out:
4898 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4899 return ret;
4900}
4901
4902/**
4903 * i40e_ndo_set_vf_trust
4904 * @netdev: network interface device structure of the pf
4905 * @vf_id: VF identifier
4906 * @setting: trust setting
4907 *
4908 * Enable or disable VF trust setting
4909 **/
4910int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
4911{
4912 struct i40e_netdev_priv *np = netdev_priv(netdev);
4913 struct i40e_pf *pf = np->vsi->back;
4914 struct i40e_vf *vf;
4915 int ret = 0;
4916
4917 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4918 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4919 return -EAGAIN;
4920 }
4921
4922 /* validate the request */
4923 if (vf_id >= pf->num_alloc_vfs) {
4924 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4925 ret = -EINVAL;
4926 goto out;
4927 }
4928
4929 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
4930 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
4931 ret = -EINVAL;
4932 goto out;
4933 }
4934
4935 vf = &pf->vf[vf_id];
4936
4937 if (setting == vf->trusted)
4938 goto out;
4939
4940 vf->trusted = setting;
4941
4942 /* request PF to sync mac/vlan filters for the VF */
4943 set_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state);
4944 pf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED;
4945
4946 i40e_vc_reset_vf(vf, true);
4947 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
4948 vf_id, setting ? "" : "un");
4949
4950 if (vf->adq_enabled) {
4951 if (!vf->trusted) {
4952 dev_info(&pf->pdev->dev,
4953 "VF %u no longer Trusted, deleting all cloud filters\n",
4954 vf_id);
4955 i40e_del_all_cloud_filters(vf);
4956 }
4957 }
4958
4959out:
4960 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4961 return ret;
4962}
4963
4964/**
4965 * i40e_get_vf_stats - populate some stats for the VF
4966 * @netdev: the netdev of the PF
4967 * @vf_id: the host OS identifier (0-127)
4968 * @vf_stats: pointer to the OS memory to be initialized
4969 */
4970int i40e_get_vf_stats(struct net_device *netdev, int vf_id,
4971 struct ifla_vf_stats *vf_stats)
4972{
4973 struct i40e_netdev_priv *np = netdev_priv(netdev);
4974 struct i40e_pf *pf = np->vsi->back;
4975 struct i40e_eth_stats *stats;
4976 struct i40e_vsi *vsi;
4977 struct i40e_vf *vf;
4978
4979 /* validate the request */
4980 if (i40e_validate_vf(pf, vf_id))
4981 return -EINVAL;
4982
4983 vf = &pf->vf[vf_id];
4984 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4985 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id);
4986 return -EBUSY;
4987 }
4988
4989 vsi = pf->vsi[vf->lan_vsi_idx];
4990 if (!vsi)
4991 return -EINVAL;
4992
4993 i40e_update_eth_stats(vsi);
4994 stats = &vsi->eth_stats;
4995
4996 memset(vf_stats, 0, sizeof(*vf_stats));
4997
4998 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast +
4999 stats->rx_multicast;
5000 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast +
5001 stats->tx_multicast;
5002 vf_stats->rx_bytes = stats->rx_bytes;
5003 vf_stats->tx_bytes = stats->tx_bytes;
5004 vf_stats->broadcast = stats->rx_broadcast;
5005 vf_stats->multicast = stats->rx_multicast;
5006 vf_stats->rx_dropped = stats->rx_discards + stats->rx_discards_other;
5007 vf_stats->tx_dropped = stats->tx_discards;
5008
5009 return 0;
5010}