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