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