1	// SPDX-License-Identifier: GPL-2.0
2	/* Copyright(c) 2013 - 2018 Intel Corporation. */
3
4	#include "i40e.h"
5	#include "i40e_lan_hmc.h"
6	#include "i40e_virtchnl_pf.h"
7
8	/*********************notification routines***********************/
9
10	/**
11	* i40e_vc_vf_broadcast
12	* @pf: pointer to the PF structure
13	* @v_opcode: operation code
14	* @v_retval: return value
15	* @msg: pointer to the msg buffer
16	* @msglen: msg length
17	*
18	* send a message to all VFs on a given PF
19	**/
20	static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
21	enum virtchnl_ops v_opcode,
22	int v_retval, u8 *msg,
23	u16 msglen)
24	{
25	struct i40e_hw *hw = &pf->hw;
26	struct i40e_vf *vf = pf->vf;
27	int i;
28
29	for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
30	int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;
31	/* Not all vfs are enabled so skip the ones that are not */
32	if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
33	!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
34	continue;
35
36	/* Ignore return value on purpose - a given VF may fail, but
37	* we need to keep going and send to all of them
38	*/
39	i40e_aq_send_msg_to_vf(hw, vfid: abs_vf_id, v_opcode, v_retval,
40	msg, msglen, NULL);
41	}
42	}
43
44	/**
45	* i40e_vc_link_speed2mbps
46	* converts i40e_aq_link_speed to integer value of Mbps
47	* @link_speed: the speed to convert
48	*
49	* return the speed as direct value of Mbps.
50	**/
51	static u32
52	i40e_vc_link_speed2mbps(enum i40e_aq_link_speed link_speed)
53	{
54	switch (link_speed) {
55	case I40E_LINK_SPEED_100MB:
56	return SPEED_100;
57	case I40E_LINK_SPEED_1GB:
58	return SPEED_1000;
59	case I40E_LINK_SPEED_2_5GB:
60	return SPEED_2500;
61	case I40E_LINK_SPEED_5GB:
62	return SPEED_5000;
63	case I40E_LINK_SPEED_10GB:
64	return SPEED_10000;
65	case I40E_LINK_SPEED_20GB:
66	return SPEED_20000;
67	case I40E_LINK_SPEED_25GB:
68	return SPEED_25000;
69	case I40E_LINK_SPEED_40GB:
70	return SPEED_40000;
71	case I40E_LINK_SPEED_UNKNOWN:
72	return SPEED_UNKNOWN;
73	}
74	return SPEED_UNKNOWN;
75	}
76
77	/**
78	* i40e_set_vf_link_state
79	* @vf: pointer to the VF structure
80	* @pfe: pointer to PF event structure
81	* @ls: pointer to link status structure
82	*
83	* set a link state on a single vf
84	**/
85	static void i40e_set_vf_link_state(struct i40e_vf *vf,
86	struct virtchnl_pf_event *pfe, struct i40e_link_status *ls)
87	{
88	u8 link_status = ls->link_info & I40E_AQ_LINK_UP;
89
90	if (vf->link_forced)
91	link_status = vf->link_up;
92
93	if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) {
94	pfe->event_data.link_event_adv.link_speed = link_status ?
95	i40e_vc_link_speed2mbps(link_speed: ls->link_speed) : 0;
96	pfe->event_data.link_event_adv.link_status = link_status;
97	} else {
98	pfe->event_data.link_event.link_speed = link_status ?
99	i40e_virtchnl_link_speed(link_speed: ls->link_speed) : 0;
100	pfe->event_data.link_event.link_status = link_status;
101	}
102	}
103
104	/**
105	* i40e_vc_notify_vf_link_state
106	* @vf: pointer to the VF structure
107	*
108	* send a link status message to a single VF
109	**/
110	static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
111	{
112	struct virtchnl_pf_event pfe;
113	struct i40e_pf *pf = vf->pf;
114	struct i40e_hw *hw = &pf->hw;
115	struct i40e_link_status *ls = &pf->hw.phy.link_info;
116	int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;
117
118	pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
119	pfe.severity = PF_EVENT_SEVERITY_INFO;
120
121	i40e_set_vf_link_state(vf, pfe: &pfe, ls);
122
123	i40e_aq_send_msg_to_vf(hw, vfid: abs_vf_id, v_opcode: VIRTCHNL_OP_EVENT,
124	v_retval: 0, msg: (u8 *)&pfe, msglen: sizeof(pfe), NULL);
125	}
126
127	/**
128	* i40e_vc_notify_link_state
129	* @pf: pointer to the PF structure
130	*
131	* send a link status message to all VFs on a given PF
132	**/
133	void i40e_vc_notify_link_state(struct i40e_pf *pf)
134	{
135	int i;
136
137	for (i = 0; i < pf->num_alloc_vfs; i++)
138	i40e_vc_notify_vf_link_state(vf: &pf->vf[i]);
139	}
140
141	/**
142	* i40e_vc_notify_reset
143	* @pf: pointer to the PF structure
144	*
145	* indicate a pending reset to all VFs on a given PF
146	**/
147	void i40e_vc_notify_reset(struct i40e_pf *pf)
148	{
149	struct virtchnl_pf_event pfe;
150
151	pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
152	pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
153	i40e_vc_vf_broadcast(pf, v_opcode: VIRTCHNL_OP_EVENT, v_retval: 0,
154	msg: (u8 *)&pfe, msglen: sizeof(struct virtchnl_pf_event));
155	}
156
157	#ifdef CONFIG_PCI_IOV
158	void i40e_restore_all_vfs_msi_state(struct pci_dev *pdev)
159	{
160	u16 vf_id;
161	u16 pos;
162
163	/* Continue only if this is a PF */
164	if (!pdev->is_physfn)
165	return;
166
167	if (!pci_num_vf(dev: pdev))
168	return;
169
170	pos = pci_find_ext_capability(dev: pdev, PCI_EXT_CAP_ID_SRIOV);
171	if (pos) {
172	struct pci_dev *vf_dev = NULL;
173
174	pci_read_config_word(dev: pdev, where: pos + PCI_SRIOV_VF_DID, val: &vf_id);
175	while ((vf_dev = pci_get_device(vendor: pdev->vendor, device: vf_id, from: vf_dev))) {
176	if (vf_dev->is_virtfn && vf_dev->physfn == pdev)
177	pci_restore_msi_state(dev: vf_dev);
178	}
179	}
180	}
181	#endif /* CONFIG_PCI_IOV */
182
183	/**
184	* i40e_vc_notify_vf_reset
185	* @vf: pointer to the VF structure
186	*
187	* indicate a pending reset to the given VF
188	**/
189	void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
190	{
191	struct virtchnl_pf_event pfe;
192	int abs_vf_id;
193
194	/* validate the request */
195	if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
196	return;
197
198	/* verify if the VF is in either init or active before proceeding */
199	if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
200	!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
201	return;
202
203	abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id;
204
205	pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
206	pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
207	i40e_aq_send_msg_to_vf(hw: &vf->pf->hw, vfid: abs_vf_id, v_opcode: VIRTCHNL_OP_EVENT,
208	v_retval: 0, msg: (u8 *)&pfe,
209	msglen: sizeof(struct virtchnl_pf_event), NULL);
210	}
211	/***********************misc routines*****************************/
212
213	/**
214	* i40e_vc_reset_vf
215	* @vf: pointer to the VF info
216	* @notify_vf: notify vf about reset or not
217	* Reset VF handler.
218	**/
219	static void i40e_vc_reset_vf(struct i40e_vf *vf, bool notify_vf)
220	{
221	struct i40e_pf *pf = vf->pf;
222	int i;
223
224	if (notify_vf)
225	i40e_vc_notify_vf_reset(vf);
226
227	/* We want to ensure that an actual reset occurs initiated after this
228	* function was called. However, we do not want to wait forever, so
229	* we'll give a reasonable time and print a message if we failed to
230	* ensure a reset.
231	*/
232	for (i = 0; i < 20; i++) {
233	/* If PF is in VFs releasing state reset VF is impossible,
234	* so leave it.
235	*/
236	if (test_bit(__I40E_VFS_RELEASING, pf->state))
237	return;
238	if (i40e_reset_vf(vf, flr: false))
239	return;
240	usleep_range(min: 10000, max: 20000);
241	}
242
243	if (notify_vf)
244	dev_warn(&vf->pf->pdev->dev,
245	"Failed to initiate reset for VF %d after 200 milliseconds\n",
246	vf->vf_id);
247	else
248	dev_dbg(&vf->pf->pdev->dev,
249	"Failed to initiate reset for VF %d after 200 milliseconds\n",
250	vf->vf_id);
251	}
252
253	/**
254	* i40e_vc_isvalid_vsi_id
255	* @vf: pointer to the VF info
256	* @vsi_id: VF relative VSI id
257	*
258	* check for the valid VSI id
259	**/
260	static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
261	{
262	struct i40e_pf *pf = vf->pf;
263	struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, id: vsi_id);
264
265	return (vsi && (vsi->vf_id == vf->vf_id));
266	}
267
268	/**
269	* i40e_vc_isvalid_queue_id
270	* @vf: pointer to the VF info
271	* @vsi_id: vsi id
272	* @qid: vsi relative queue id
273	*
274	* check for the valid queue id
275	**/
276	static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
277	u16 qid)
278	{
279	struct i40e_pf *pf = vf->pf;
280	struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, id: vsi_id);
281
282	return (vsi && (qid < vsi->alloc_queue_pairs));
283	}
284
285	/**
286	* i40e_vc_isvalid_vector_id
287	* @vf: pointer to the VF info
288	* @vector_id: VF relative vector id
289	*
290	* check for the valid vector id
291	**/
292	static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id)
293	{
294	struct i40e_pf *pf = vf->pf;
295
296	return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
297	}
298
299	/***********************vf resource mgmt routines*****************/
300
301	/**
302	* i40e_vc_get_pf_queue_id
303	* @vf: pointer to the VF info
304	* @vsi_id: id of VSI as provided by the FW
305	* @vsi_queue_id: vsi relative queue id
306	*
307	* return PF relative queue id
308	**/
309	static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
310	u8 vsi_queue_id)
311	{
312	struct i40e_pf *pf = vf->pf;
313	struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, id: vsi_id);
314	u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
315
316	if (!vsi)
317	return pf_queue_id;
318
319	if (le16_to_cpu(vsi->info.mapping_flags) &
320	I40E_AQ_VSI_QUE_MAP_NONCONTIG)
321	pf_queue_id =
322	le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
323	else
324	pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
325	vsi_queue_id;
326
327	return pf_queue_id;
328	}
329
330	/**
331	* i40e_get_real_pf_qid
332	* @vf: pointer to the VF info
333	* @vsi_id: vsi id
334	* @queue_id: queue number
335	*
336	* wrapper function to get pf_queue_id handling ADq code as well
337	**/
338	static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id)
339	{
340	int i;
341
342	if (vf->adq_enabled) {
343	/* Although VF considers all the queues(can be 1 to 16) as its
344	* own but they may actually belong to different VSIs(up to 4).
345	* We need to find which queues belongs to which VSI.
346	*/
347	for (i = 0; i < vf->num_tc; i++) {
348	if (queue_id < vf->ch[i].num_qps) {
349	vsi_id = vf->ch[i].vsi_id;
350	break;
351	}
352	/* find right queue id which is relative to a
353	* given VSI.
354	*/
355	queue_id -= vf->ch[i].num_qps;
356	}
357	}
358
359	return i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id: queue_id);
360	}
361
362	/**
363	* i40e_config_irq_link_list
364	* @vf: pointer to the VF info
365	* @vsi_id: id of VSI as given by the FW
366	* @vecmap: irq map info
367	*
368	* configure irq link list from the map
369	**/
370	static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
371	struct virtchnl_vector_map *vecmap)
372	{
373	unsigned long linklistmap = 0, tempmap;
374	struct i40e_pf *pf = vf->pf;
375	struct i40e_hw *hw = &pf->hw;
376	u16 vsi_queue_id, pf_queue_id;
377	enum i40e_queue_type qtype;
378	u16 next_q, vector_id, size;
379	u32 reg, reg_idx;
380	u16 itr_idx = 0;
381
382	vector_id = vecmap->vector_id;
383	/* setup the head */
384	if (0 == vector_id)
385	reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
386	else
387	reg_idx = I40E_VPINT_LNKLSTN(
388	((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
389	(vector_id - 1));
390
391	if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
392	/* Special case - No queues mapped on this vector */
393	wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
394	goto irq_list_done;
395	}
396	tempmap = vecmap->rxq_map;
397	for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
398	linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
399	vsi_queue_id));
400	}
401
402	tempmap = vecmap->txq_map;
403	for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
404	linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
405	vsi_queue_id + 1));
406	}
407
408	size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES;
409	next_q = find_first_bit(addr: &linklistmap, size);
410	if (unlikely(next_q == size))
411	goto irq_list_done;
412
413	vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
414	qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
415	pf_queue_id = i40e_get_real_pf_qid(vf, vsi_id, queue_id: vsi_queue_id);
416	reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
417
418	wr32(hw, reg_idx, reg);
419
420	while (next_q < size) {
421	switch (qtype) {
422	case I40E_QUEUE_TYPE_RX:
423	reg_idx = I40E_QINT_RQCTL(pf_queue_id);
424	itr_idx = vecmap->rxitr_idx;
425	break;
426	case I40E_QUEUE_TYPE_TX:
427	reg_idx = I40E_QINT_TQCTL(pf_queue_id);
428	itr_idx = vecmap->txitr_idx;
429	break;
430	default:
431	break;
432	}
433
434	next_q = find_next_bit(addr: &linklistmap, size, offset: next_q + 1);
435	if (next_q < size) {
436	vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
437	qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
438	pf_queue_id = i40e_get_real_pf_qid(vf,
439	vsi_id,
440	queue_id: vsi_queue_id);
441	} else {
442	pf_queue_id = I40E_QUEUE_END_OF_LIST;
443	qtype = 0;
444	}
445
446	/* format for the RQCTL & TQCTL regs is same */
447	reg = (vector_id) |
448	(qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
449	(pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
450	BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
451	(itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
452	wr32(hw, reg_idx, reg);
453	}
454
455	/* if the vf is running in polling mode and using interrupt zero,
456	* need to disable auto-mask on enabling zero interrupt for VFs.
457	*/
458	if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
459	(vector_id == 0)) {
460	reg = rd32(hw, I40E_GLINT_CTL);
461	if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {
462	reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;
463	wr32(hw, I40E_GLINT_CTL, reg);
464	}
465	}
466
467	irq_list_done:
468	i40e_flush(hw);
469	}
470
471	/**
472	* i40e_release_rdma_qvlist
473	* @vf: pointer to the VF.
474	*
475	**/
476	static void i40e_release_rdma_qvlist(struct i40e_vf *vf)
477	{
478	struct i40e_pf *pf = vf->pf;
479	struct virtchnl_rdma_qvlist_info *qvlist_info = vf->qvlist_info;
480	u32 msix_vf;
481	u32 i;
482
483	if (!vf->qvlist_info)
484	return;
485
486	msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
487	for (i = 0; i < qvlist_info->num_vectors; i++) {
488	struct virtchnl_rdma_qv_info *qv_info;
489	u32 next_q_index, next_q_type;
490	struct i40e_hw *hw = &pf->hw;
491	u32 v_idx, reg_idx, reg;
492
493	qv_info = &qvlist_info->qv_info[i];
494	v_idx = qv_info->v_idx;
495	if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
496	/* Figure out the queue after CEQ and make that the
497	* first queue.
498	*/
499	reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
500	reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
501	next_q_index = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK,
502	reg);
503	next_q_type = FIELD_GET(I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK,
504	reg);
505
506	reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
507	reg = (next_q_index &
508	I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
509	(next_q_type <<
510	I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
511
512	wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
513	}
514	}
515	kfree(objp: vf->qvlist_info);
516	vf->qvlist_info = NULL;
517	}
518
519	/**
520	* i40e_config_rdma_qvlist
521	* @vf: pointer to the VF info
522	* @qvlist_info: queue and vector list
523	*
524	* Return 0 on success or < 0 on error
525	**/
526	static int
527	i40e_config_rdma_qvlist(struct i40e_vf *vf,
528	struct virtchnl_rdma_qvlist_info *qvlist_info)
529	{
530	struct i40e_pf *pf = vf->pf;
531	struct i40e_hw *hw = &pf->hw;
532	struct virtchnl_rdma_qv_info *qv_info;
533	u32 v_idx, i, reg_idx, reg;
534	u32 next_q_idx, next_q_type;
535	size_t size;
536	u32 msix_vf;
537	int ret = 0;
538
539	msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
540
541	if (qvlist_info->num_vectors > msix_vf) {
542	dev_warn(&pf->pdev->dev,
543	"Incorrect number of iwarp vectors %u. Maximum %u allowed.\n",
544	qvlist_info->num_vectors,
545	msix_vf);
546	ret = -EINVAL;
547	goto err_out;
548	}
549
550	kfree(objp: vf->qvlist_info);
551	size = virtchnl_struct_size(vf->qvlist_info, qv_info,
552	qvlist_info->num_vectors);
553	vf->qvlist_info = kzalloc(size, GFP_KERNEL);
554	if (!vf->qvlist_info) {
555	ret = -ENOMEM;
556	goto err_out;
557	}
558	vf->qvlist_info->num_vectors = qvlist_info->num_vectors;
559
560	msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
561	for (i = 0; i < qvlist_info->num_vectors; i++) {
562	qv_info = &qvlist_info->qv_info[i];
563
564	/* Validate vector id belongs to this vf */
565	if (!i40e_vc_isvalid_vector_id(vf, vector_id: qv_info->v_idx)) {
566	ret = -EINVAL;
567	goto err_free;
568	}
569
570	v_idx = qv_info->v_idx;
571
572	vf->qvlist_info->qv_info[i] = *qv_info;
573
574	reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
575	/* We might be sharing the interrupt, so get the first queue
576	* index and type, push it down the list by adding the new
577	* queue on top. Also link it with the new queue in CEQCTL.
578	*/
579	reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
580	next_q_idx = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK,
581	reg);
582	next_q_type = FIELD_GET(I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK,
583	reg);
584
585	if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
586	reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
587	reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |
588	(v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |
589	(qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |
590	(next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |
591	(next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));
592	wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);
593
594	reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
595	reg = (qv_info->ceq_idx &
596	I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
597	(I40E_QUEUE_TYPE_PE_CEQ <<
598	I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
599	wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
600	}
601
602	if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
603	reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |
604	(v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |
605	(qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));
606
607	wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);
608	}
609	}
610
611	return 0;
612	err_free:
613	kfree(objp: vf->qvlist_info);
614	vf->qvlist_info = NULL;
615	err_out:
616	return ret;
617	}
618
619	/**
620	* i40e_config_vsi_tx_queue
621	* @vf: pointer to the VF info
622	* @vsi_id: id of VSI as provided by the FW
623	* @vsi_queue_id: vsi relative queue index
624	* @info: config. info
625	*
626	* configure tx queue
627	**/
628	static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
629	u16 vsi_queue_id,
630	struct virtchnl_txq_info *info)
631	{
632	struct i40e_pf *pf = vf->pf;
633	struct i40e_hw *hw = &pf->hw;
634	struct i40e_hmc_obj_txq tx_ctx;
635	struct i40e_vsi *vsi;
636	u16 pf_queue_id;
637	u32 qtx_ctl;
638	int ret = 0;
639
640	if (!i40e_vc_isvalid_vsi_id(vf, vsi_id: info->vsi_id)) {
641	ret = -ENOENT;
642	goto error_context;
643	}
644	pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
645	vsi = i40e_find_vsi_from_id(pf, id: vsi_id);
646	if (!vsi) {
647	ret = -ENOENT;
648	goto error_context;
649	}
650
651	/* clear the context structure first */
652	memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
653
654	/* only set the required fields */
655	tx_ctx.base = info->dma_ring_addr / 128;
656	tx_ctx.qlen = info->ring_len;
657	tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
658	tx_ctx.rdylist_act = 0;
659	tx_ctx.head_wb_ena = info->headwb_enabled;
660	tx_ctx.head_wb_addr = info->dma_headwb_addr;
661
662	/* clear the context in the HMC */
663	ret = i40e_clear_lan_tx_queue_context(hw, queue: pf_queue_id);
664	if (ret) {
665	dev_err(&pf->pdev->dev,
666	"Failed to clear VF LAN Tx queue context %d, error: %d\n",
667	pf_queue_id, ret);
668	ret = -ENOENT;
669	goto error_context;
670	}
671
672	/* set the context in the HMC */
673	ret = i40e_set_lan_tx_queue_context(hw, queue: pf_queue_id, s: &tx_ctx);
674	if (ret) {
675	dev_err(&pf->pdev->dev,
676	"Failed to set VF LAN Tx queue context %d error: %d\n",
677	pf_queue_id, ret);
678	ret = -ENOENT;
679	goto error_context;
680	}
681
682	/* associate this queue with the PCI VF function */
683	qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
684	qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_PF_INDX_MASK, hw->pf_id);
685	qtx_ctl |= FIELD_PREP(I40E_QTX_CTL_VFVM_INDX_MASK,
686	vf->vf_id + hw->func_caps.vf_base_id);
687	wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
688	i40e_flush(hw);
689
690	error_context:
691	return ret;
692	}
693
694	/**
695	* i40e_config_vsi_rx_queue
696	* @vf: pointer to the VF info
697	* @vsi_id: id of VSI as provided by the FW
698	* @vsi_queue_id: vsi relative queue index
699	* @info: config. info
700	*
701	* configure rx queue
702	**/
703	static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
704	u16 vsi_queue_id,
705	struct virtchnl_rxq_info *info)
706	{
707	u16 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
708	struct i40e_pf *pf = vf->pf;
709	struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
710	struct i40e_hw *hw = &pf->hw;
711	struct i40e_hmc_obj_rxq rx_ctx;
712	int ret = 0;
713
714	/* clear the context structure first */
715	memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
716
717	/* only set the required fields */
718	rx_ctx.base = info->dma_ring_addr / 128;
719	rx_ctx.qlen = info->ring_len;
720
721	if (info->splithdr_enabled) {
722	rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
723	I40E_RX_SPLIT_IP |
724	I40E_RX_SPLIT_TCP_UDP |
725	I40E_RX_SPLIT_SCTP;
726	/* header length validation */
727	if (info->hdr_size > ((2 * 1024) - 64)) {
728	ret = -EINVAL;
729	goto error_param;
730	}
731	rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
732
733	/* set split mode 10b */
734	rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;
735	}
736
737	/* databuffer length validation */
738	if (info->databuffer_size > ((16 * 1024) - 128)) {
739	ret = -EINVAL;
740	goto error_param;
741	}
742	rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
743
744	/* max pkt. length validation */
745	if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
746	ret = -EINVAL;
747	goto error_param;
748	}
749	rx_ctx.rxmax = info->max_pkt_size;
750
751	/* if port VLAN is configured increase the max packet size */
752	if (vsi->info.pvid)
753	rx_ctx.rxmax += VLAN_HLEN;
754
755	/* enable 32bytes desc always */
756	rx_ctx.dsize = 1;
757
758	/* default values */
759	rx_ctx.lrxqthresh = 1;
760	rx_ctx.crcstrip = 1;
761	rx_ctx.prefena = 1;
762	rx_ctx.l2tsel = 1;
763
764	/* clear the context in the HMC */
765	ret = i40e_clear_lan_rx_queue_context(hw, queue: pf_queue_id);
766	if (ret) {
767	dev_err(&pf->pdev->dev,
768	"Failed to clear VF LAN Rx queue context %d, error: %d\n",
769	pf_queue_id, ret);
770	ret = -ENOENT;
771	goto error_param;
772	}
773
774	/* set the context in the HMC */
775	ret = i40e_set_lan_rx_queue_context(hw, queue: pf_queue_id, s: &rx_ctx);
776	if (ret) {
777	dev_err(&pf->pdev->dev,
778	"Failed to set VF LAN Rx queue context %d error: %d\n",
779	pf_queue_id, ret);
780	ret = -ENOENT;
781	goto error_param;
782	}
783
784	error_param:
785	return ret;
786	}
787
788	/**
789	* i40e_alloc_vsi_res
790	* @vf: pointer to the VF info
791	* @idx: VSI index, applies only for ADq mode, zero otherwise
792	*
793	* alloc VF vsi context & resources
794	**/
795	static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx)
796	{
797	struct i40e_mac_filter *f = NULL;
798	struct i40e_pf *pf = vf->pf;
799	struct i40e_vsi *vsi;
800	u64 max_tx_rate = 0;
801	int ret = 0;
802
803	vsi = i40e_vsi_setup(pf, type: I40E_VSI_SRIOV, uplink: pf->vsi[pf->lan_vsi]->seid,
804	param1: vf->vf_id);
805
806	if (!vsi) {
807	dev_err(&pf->pdev->dev,
808	"add vsi failed for VF %d, aq_err %d\n",
809	vf->vf_id, pf->hw.aq.asq_last_status);
810	ret = -ENOENT;
811	goto error_alloc_vsi_res;
812	}
813
814	if (!idx) {
815	u64 hena = i40e_pf_get_default_rss_hena(pf);
816	u8 broadcast[ETH_ALEN];
817
818	vf->lan_vsi_idx = vsi->idx;
819	vf->lan_vsi_id = vsi->id;
820	/* If the port VLAN has been configured and then the
821	* VF driver was removed then the VSI port VLAN
822	* configuration was destroyed. Check if there is
823	* a port VLAN and restore the VSI configuration if
824	* needed.
825	*/
826	if (vf->port_vlan_id)
827	i40e_vsi_add_pvid(vsi, vid: vf->port_vlan_id);
828
829	spin_lock_bh(lock: &vsi->mac_filter_hash_lock);
830	if (is_valid_ether_addr(addr: vf->default_lan_addr.addr)) {
831	f = i40e_add_mac_filter(vsi,
832	macaddr: vf->default_lan_addr.addr);
833	if (!f)
834	dev_info(&pf->pdev->dev,
835	"Could not add MAC filter %pM for VF %d\n",
836	vf->default_lan_addr.addr, vf->vf_id);
837	}
838	eth_broadcast_addr(addr: broadcast);
839	f = i40e_add_mac_filter(vsi, macaddr: broadcast);
840	if (!f)
841	dev_info(&pf->pdev->dev,
842	"Could not allocate VF broadcast filter\n");
843	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
844	wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena);
845	wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32));
846	/* program mac filter only for VF VSI */
847	ret = i40e_sync_vsi_filters(vsi);
848	if (ret)
849	dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
850	}
851
852	/* storing VSI index and id for ADq and don't apply the mac filter */
853	if (vf->adq_enabled) {
854	vf->ch[idx].vsi_idx = vsi->idx;
855	vf->ch[idx].vsi_id = vsi->id;
856	}
857
858	/* Set VF bandwidth if specified */
859	if (vf->tx_rate) {
860	max_tx_rate = vf->tx_rate;
861	} else if (vf->ch[idx].max_tx_rate) {
862	max_tx_rate = vf->ch[idx].max_tx_rate;
863	}
864
865	if (max_tx_rate) {
866	max_tx_rate = div_u64(dividend: max_tx_rate, I40E_BW_CREDIT_DIVISOR);
867	ret = i40e_aq_config_vsi_bw_limit(hw: &pf->hw, seid: vsi->seid,
868	credit: max_tx_rate, max_credit: 0, NULL);
869	if (ret)
870	dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
871	vf->vf_id, ret);
872	}
873
874	error_alloc_vsi_res:
875	return ret;
876	}
877
878	/**
879	* i40e_map_pf_queues_to_vsi
880	* @vf: pointer to the VF info
881	*
882	* PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
883	* function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI.
884	**/
885	static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf)
886	{
887	struct i40e_pf *pf = vf->pf;
888	struct i40e_hw *hw = &pf->hw;
889	u32 reg, num_tc = 1; /* VF has at least one traffic class */
890	u16 vsi_id, qps;
891	int i, j;
892
893	if (vf->adq_enabled)
894	num_tc = vf->num_tc;
895
896	for (i = 0; i < num_tc; i++) {
897	if (vf->adq_enabled) {
898	qps = vf->ch[i].num_qps;
899	vsi_id = vf->ch[i].vsi_id;
900	} else {
901	qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
902	vsi_id = vf->lan_vsi_id;
903	}
904
905	for (j = 0; j < 7; j++) {
906	if (j * 2 >= qps) {
907	/* end of list */
908	reg = 0x07FF07FF;
909	} else {
910	u16 qid = i40e_vc_get_pf_queue_id(vf,
911	vsi_id,
912	vsi_queue_id: j * 2);
913	reg = qid;
914	qid = i40e_vc_get_pf_queue_id(vf, vsi_id,
915	vsi_queue_id: (j * 2) + 1);
916	reg |= qid << 16;
917	}
918	i40e_write_rx_ctl(hw,
919	I40E_VSILAN_QTABLE(j, vsi_id),
920	reg_val: reg);
921	}
922	}
923	}
924
925	/**
926	* i40e_map_pf_to_vf_queues
927	* @vf: pointer to the VF info
928	*
929	* PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
930	* function takes care of the second part VPLAN_QTABLE & completes VF mappings.
931	**/
932	static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf)
933	{
934	struct i40e_pf *pf = vf->pf;
935	struct i40e_hw *hw = &pf->hw;
936	u32 reg, total_qps = 0;
937	u32 qps, num_tc = 1; /* VF has at least one traffic class */
938	u16 vsi_id, qid;
939	int i, j;
940
941	if (vf->adq_enabled)
942	num_tc = vf->num_tc;
943
944	for (i = 0; i < num_tc; i++) {
945	if (vf->adq_enabled) {
946	qps = vf->ch[i].num_qps;
947	vsi_id = vf->ch[i].vsi_id;
948	} else {
949	qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
950	vsi_id = vf->lan_vsi_id;
951	}
952
953	for (j = 0; j < qps; j++) {
954	qid = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id: j);
955
956	reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
957	wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id),
958	reg);
959	total_qps++;
960	}
961	}
962	}
963
964	/**
965	* i40e_enable_vf_mappings
966	* @vf: pointer to the VF info
967	*
968	* enable VF mappings
969	**/
970	static void i40e_enable_vf_mappings(struct i40e_vf *vf)
971	{
972	struct i40e_pf *pf = vf->pf;
973	struct i40e_hw *hw = &pf->hw;
974	u32 reg;
975
976	/* Tell the hardware we're using noncontiguous mapping. HW requires
977	* that VF queues be mapped using this method, even when they are
978	* contiguous in real life
979	*/
980	i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
981	I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
982
983	/* enable VF vplan_qtable mappings */
984	reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
985	wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
986
987	i40e_map_pf_to_vf_queues(vf);
988	i40e_map_pf_queues_to_vsi(vf);
989
990	i40e_flush(hw);
991	}
992
993	/**
994	* i40e_disable_vf_mappings
995	* @vf: pointer to the VF info
996	*
997	* disable VF mappings
998	**/
999	static void i40e_disable_vf_mappings(struct i40e_vf *vf)
1000	{
1001	struct i40e_pf *pf = vf->pf;
1002	struct i40e_hw *hw = &pf->hw;
1003	int i;
1004
1005	/* disable qp mappings */
1006	wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
1007	for (i = 0; i < I40E_MAX_VSI_QP; i++)
1008	wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
1009	I40E_QUEUE_END_OF_LIST);
1010	i40e_flush(hw);
1011	}
1012
1013	/**
1014	* i40e_free_vf_res
1015	* @vf: pointer to the VF info
1016	*
1017	* free VF resources
1018	**/
1019	static void i40e_free_vf_res(struct i40e_vf *vf)
1020	{
1021	struct i40e_pf *pf = vf->pf;
1022	struct i40e_hw *hw = &pf->hw;
1023	u32 reg_idx, reg;
1024	int i, j, msix_vf;
1025
1026	/* Start by disabling VF's configuration API to prevent the OS from
1027	* accessing the VF's VSI after it's freed / invalidated.
1028	*/
1029	clear_bit(nr: I40E_VF_STATE_INIT, addr: &vf->vf_states);
1030
1031	/* It's possible the VF had requeuested more queues than the default so
1032	* do the accounting here when we're about to free them.
1033	*/
1034	if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) {
1035	pf->queues_left += vf->num_queue_pairs -
1036	I40E_DEFAULT_QUEUES_PER_VF;
1037	}
1038
1039	/* free vsi & disconnect it from the parent uplink */
1040	if (vf->lan_vsi_idx) {
1041	i40e_vsi_release(vsi: pf->vsi[vf->lan_vsi_idx]);
1042	vf->lan_vsi_idx = 0;
1043	vf->lan_vsi_id = 0;
1044	}
1045
1046	/* do the accounting and remove additional ADq VSI's */
1047	if (vf->adq_enabled && vf->ch[0].vsi_idx) {
1048	for (j = 0; j < vf->num_tc; j++) {
1049	/* At this point VSI0 is already released so don't
1050	* release it again and only clear their values in
1051	* structure variables
1052	*/
1053	if (j)
1054	i40e_vsi_release(vsi: pf->vsi[vf->ch[j].vsi_idx]);
1055	vf->ch[j].vsi_idx = 0;
1056	vf->ch[j].vsi_id = 0;
1057	}
1058	}
1059	msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
1060
1061	/* disable interrupts so the VF starts in a known state */
1062	for (i = 0; i < msix_vf; i++) {
1063	/* format is same for both registers */
1064	if (0 == i)
1065	reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
1066	else
1067	reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
1068	(vf->vf_id))
1069	+ (i - 1));
1070	wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
1071	i40e_flush(hw);
1072	}
1073
1074	/* clear the irq settings */
1075	for (i = 0; i < msix_vf; i++) {
1076	/* format is same for both registers */
1077	if (0 == i)
1078	reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
1079	else
1080	reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
1081	(vf->vf_id))
1082	+ (i - 1));
1083	reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
1084	I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
1085	wr32(hw, reg_idx, reg);
1086	i40e_flush(hw);
1087	}
1088	/* reset some of the state variables keeping track of the resources */
1089	vf->num_queue_pairs = 0;
1090	clear_bit(nr: I40E_VF_STATE_MC_PROMISC, addr: &vf->vf_states);
1091	clear_bit(nr: I40E_VF_STATE_UC_PROMISC, addr: &vf->vf_states);
1092	}
1093
1094	/**
1095	* i40e_alloc_vf_res
1096	* @vf: pointer to the VF info
1097	*
1098	* allocate VF resources
1099	**/
1100	static int i40e_alloc_vf_res(struct i40e_vf *vf)
1101	{
1102	struct i40e_pf *pf = vf->pf;
1103	int total_queue_pairs = 0;
1104	int ret, idx;
1105
1106	if (vf->num_req_queues &&
1107	vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF)
1108	pf->num_vf_qps = vf->num_req_queues;
1109	else
1110	pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF;
1111
1112	/* allocate hw vsi context & associated resources */
1113	ret = i40e_alloc_vsi_res(vf, idx: 0);
1114	if (ret)
1115	goto error_alloc;
1116	total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
1117
1118	/* allocate additional VSIs based on tc information for ADq */
1119	if (vf->adq_enabled) {
1120	if (pf->queues_left >=
1121	(I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) {
1122	/* TC 0 always belongs to VF VSI */
1123	for (idx = 1; idx < vf->num_tc; idx++) {
1124	ret = i40e_alloc_vsi_res(vf, idx);
1125	if (ret)
1126	goto error_alloc;
1127	}
1128	/* send correct number of queues */
1129	total_queue_pairs = I40E_MAX_VF_QUEUES;
1130	} else {
1131	dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n",
1132	vf->vf_id);
1133	vf->adq_enabled = false;
1134	}
1135	}
1136
1137	/* We account for each VF to get a default number of queue pairs. If
1138	* the VF has now requested more, we need to account for that to make
1139	* certain we never request more queues than we actually have left in
1140	* HW.
1141	*/
1142	if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF)
1143	pf->queues_left -=
1144	total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF;
1145
1146	if (vf->trusted)
1147	set_bit(nr: I40E_VIRTCHNL_VF_CAP_PRIVILEGE, addr: &vf->vf_caps);
1148	else
1149	clear_bit(nr: I40E_VIRTCHNL_VF_CAP_PRIVILEGE, addr: &vf->vf_caps);
1150
1151	/* store the total qps number for the runtime
1152	* VF req validation
1153	*/
1154	vf->num_queue_pairs = total_queue_pairs;
1155
1156	/* VF is now completely initialized */
1157	set_bit(nr: I40E_VF_STATE_INIT, addr: &vf->vf_states);
1158
1159	error_alloc:
1160	if (ret)
1161	i40e_free_vf_res(vf);
1162
1163	return ret;
1164	}
1165
1166	#define VF_DEVICE_STATUS 0xAA
1167	#define VF_TRANS_PENDING_MASK 0x20
1168	/**
1169	* i40e_quiesce_vf_pci
1170	* @vf: pointer to the VF structure
1171	*
1172	* Wait for VF PCI transactions to be cleared after reset. Returns -EIO
1173	* if the transactions never clear.
1174	**/
1175	static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
1176	{
1177	struct i40e_pf *pf = vf->pf;
1178	struct i40e_hw *hw = &pf->hw;
1179	int vf_abs_id, i;
1180	u32 reg;
1181
1182	vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
1183
1184	wr32(hw, I40E_PF_PCI_CIAA,
1185	VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
1186	for (i = 0; i < 100; i++) {
1187	reg = rd32(hw, I40E_PF_PCI_CIAD);
1188	if ((reg & VF_TRANS_PENDING_MASK) == 0)
1189	return 0;
1190	udelay(1);
1191	}
1192	return -EIO;
1193	}
1194
1195	/**
1196	* __i40e_getnum_vf_vsi_vlan_filters
1197	* @vsi: pointer to the vsi
1198	*
1199	* called to get the number of VLANs offloaded on this VF
1200	**/
1201	static int __i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1202	{
1203	struct i40e_mac_filter *f;
1204	u16 num_vlans = 0, bkt;
1205
1206	hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1207	if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
1208	num_vlans++;
1209	}
1210
1211	return num_vlans;
1212	}
1213
1214	/**
1215	* i40e_getnum_vf_vsi_vlan_filters
1216	* @vsi: pointer to the vsi
1217	*
1218	* wrapper for __i40e_getnum_vf_vsi_vlan_filters() with spinlock held
1219	**/
1220	static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1221	{
1222	int num_vlans;
1223
1224	spin_lock_bh(lock: &vsi->mac_filter_hash_lock);
1225	num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi);
1226	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
1227
1228	return num_vlans;
1229	}
1230
1231	/**
1232	* i40e_get_vlan_list_sync
1233	* @vsi: pointer to the VSI
1234	* @num_vlans: number of VLANs in mac_filter_hash, returned to caller
1235	* @vlan_list: list of VLANs present in mac_filter_hash, returned to caller.
1236	* This array is allocated here, but has to be freed in caller.
1237	*
1238	* Called to get number of VLANs and VLAN list present in mac_filter_hash.
1239	**/
1240	static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans,
1241	s16 **vlan_list)
1242	{
1243	struct i40e_mac_filter *f;
1244	int i = 0;
1245	int bkt;
1246
1247	spin_lock_bh(lock: &vsi->mac_filter_hash_lock);
1248	*num_vlans = __i40e_getnum_vf_vsi_vlan_filters(vsi);
1249	*vlan_list = kcalloc(n: *num_vlans, size: sizeof(**vlan_list), GFP_ATOMIC);
1250	if (!(*vlan_list))
1251	goto err;
1252
1253	hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1254	if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1255	continue;
1256	(*vlan_list)[i++] = f->vlan;
1257	}
1258	err:
1259	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
1260	}
1261
1262	/**
1263	* i40e_set_vsi_promisc
1264	* @vf: pointer to the VF struct
1265	* @seid: VSI number
1266	* @multi_enable: set MAC L2 layer multicast promiscuous enable/disable
1267	* for a given VLAN
1268	* @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable
1269	* for a given VLAN
1270	* @vl: List of VLANs - apply filter for given VLANs
1271	* @num_vlans: Number of elements in @vl
1272	**/
1273	static int
1274	i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable,
1275	bool unicast_enable, s16 *vl, u16 num_vlans)
1276	{
1277	struct i40e_pf *pf = vf->pf;
1278	struct i40e_hw *hw = &pf->hw;
1279	int aq_ret, aq_tmp = 0;
1280	int i;
1281
1282	/* No VLAN to set promisc on, set on VSI */
1283	if (!num_vlans || !vl) {
1284	aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi_id: seid,
1285	set: multi_enable,
1286	NULL);
1287	if (aq_ret) {
1288	int aq_err = pf->hw.aq.asq_last_status;
1289
1290	dev_err(&pf->pdev->dev,
1291	"VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n",
1292	vf->vf_id,
1293	ERR_PTR(aq_ret),
1294	i40e_aq_str(&pf->hw, aq_err));
1295
1296	return aq_ret;
1297	}
1298
1299	aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, vsi_id: seid,
1300	set: unicast_enable,
1301	NULL, rx_only_promisc: true);
1302
1303	if (aq_ret) {
1304	int aq_err = pf->hw.aq.asq_last_status;
1305
1306	dev_err(&pf->pdev->dev,
1307	"VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n",
1308	vf->vf_id,
1309	ERR_PTR(aq_ret),
1310	i40e_aq_str(&pf->hw, aq_err));
1311	}
1312
1313	return aq_ret;
1314	}
1315
1316	for (i = 0; i < num_vlans; i++) {
1317	aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid,
1318	enable: multi_enable,
1319	vid: vl[i], NULL);
1320	if (aq_ret) {
1321	int aq_err = pf->hw.aq.asq_last_status;
1322
1323	dev_err(&pf->pdev->dev,
1324	"VF %d failed to set multicast promiscuous mode err %pe aq_err %s\n",
1325	vf->vf_id,
1326	ERR_PTR(aq_ret),
1327	i40e_aq_str(&pf->hw, aq_err));
1328
1329	if (!aq_tmp)
1330	aq_tmp = aq_ret;
1331	}
1332
1333	aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid,
1334	enable: unicast_enable,
1335	vid: vl[i], NULL);
1336	if (aq_ret) {
1337	int aq_err = pf->hw.aq.asq_last_status;
1338
1339	dev_err(&pf->pdev->dev,
1340	"VF %d failed to set unicast promiscuous mode err %pe aq_err %s\n",
1341	vf->vf_id,
1342	ERR_PTR(aq_ret),
1343	i40e_aq_str(&pf->hw, aq_err));
1344
1345	if (!aq_tmp)
1346	aq_tmp = aq_ret;
1347	}
1348	}
1349
1350	if (aq_tmp)
1351	aq_ret = aq_tmp;
1352
1353	return aq_ret;
1354	}
1355
1356	/**
1357	* i40e_config_vf_promiscuous_mode
1358	* @vf: pointer to the VF info
1359	* @vsi_id: VSI id
1360	* @allmulti: set MAC L2 layer multicast promiscuous enable/disable
1361	* @alluni: set MAC L2 layer unicast promiscuous enable/disable
1362	*
1363	* Called from the VF to configure the promiscuous mode of
1364	* VF vsis and from the VF reset path to reset promiscuous mode.
1365	**/
1366	static int i40e_config_vf_promiscuous_mode(struct i40e_vf *vf,
1367	u16 vsi_id,
1368	bool allmulti,
1369	bool alluni)
1370	{
1371	struct i40e_pf *pf = vf->pf;
1372	struct i40e_vsi *vsi;
1373	int aq_ret = 0;
1374	u16 num_vlans;
1375	s16 *vl;
1376
1377	vsi = i40e_find_vsi_from_id(pf, id: vsi_id);
1378	if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi)
1379	return -EINVAL;
1380
1381	if (vf->port_vlan_id) {
1382	aq_ret = i40e_set_vsi_promisc(vf, seid: vsi->seid, multi_enable: allmulti,
1383	unicast_enable: alluni, vl: &vf->port_vlan_id, num_vlans: 1);
1384	return aq_ret;
1385	} else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1386	i40e_get_vlan_list_sync(vsi, num_vlans: &num_vlans, vlan_list: &vl);
1387
1388	if (!vl)
1389	return -ENOMEM;
1390
1391	aq_ret = i40e_set_vsi_promisc(vf, seid: vsi->seid, multi_enable: allmulti, unicast_enable: alluni,
1392	vl, num_vlans);
1393	kfree(objp: vl);
1394	return aq_ret;
1395	}
1396
1397	/* no VLANs to set on, set on VSI */
1398	aq_ret = i40e_set_vsi_promisc(vf, seid: vsi->seid, multi_enable: allmulti, unicast_enable: alluni,
1399	NULL, num_vlans: 0);
1400	return aq_ret;
1401	}
1402
1403	/**
1404	* i40e_sync_vfr_reset
1405	* @hw: pointer to hw struct
1406	* @vf_id: VF identifier
1407	*
1408	* Before trigger hardware reset, we need to know if no other process has
1409	* reserved the hardware for any reset operations. This check is done by
1410	* examining the status of the RSTAT1 register used to signal the reset.
1411	**/
1412	static int i40e_sync_vfr_reset(struct i40e_hw *hw, int vf_id)
1413	{
1414	u32 reg;
1415	int i;
1416
1417	for (i = 0; i < I40E_VFR_WAIT_COUNT; i++) {
1418	reg = rd32(hw, I40E_VFINT_ICR0_ENA(vf_id)) &
1419	I40E_VFINT_ICR0_ADMINQ_MASK;
1420	if (reg)
1421	return 0;
1422
1423	usleep_range(min: 100, max: 200);
1424	}
1425
1426	return -EAGAIN;
1427	}
1428
1429	/**
1430	* i40e_trigger_vf_reset
1431	* @vf: pointer to the VF structure
1432	* @flr: VFLR was issued or not
1433	*
1434	* Trigger hardware to start a reset for a particular VF. Expects the caller
1435	* to wait the proper amount of time to allow hardware to reset the VF before
1436	* it cleans up and restores VF functionality.
1437	**/
1438	static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
1439	{
1440	struct i40e_pf *pf = vf->pf;
1441	struct i40e_hw *hw = &pf->hw;
1442	u32 reg, reg_idx, bit_idx;
1443	bool vf_active;
1444	u32 radq;
1445
1446	/* warn the VF */
1447	vf_active = test_and_clear_bit(nr: I40E_VF_STATE_ACTIVE, addr: &vf->vf_states);
1448
1449	/* Disable VF's configuration API during reset. The flag is re-enabled
1450	* in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.
1451	* It's normally disabled in i40e_free_vf_res(), but it's safer
1452	* to do it earlier to give some time to finish to any VF config
1453	* functions that may still be running at this point.
1454	*/
1455	clear_bit(nr: I40E_VF_STATE_INIT, addr: &vf->vf_states);
1456
1457	/* In the case of a VFLR, the HW has already reset the VF and we
1458	* just need to clean up, so don't hit the VFRTRIG register.
1459	*/
1460	if (!flr) {
1461	/* Sync VFR reset before trigger next one */
1462	radq = rd32(hw, I40E_VFINT_ICR0_ENA(vf->vf_id)) &
1463	I40E_VFINT_ICR0_ADMINQ_MASK;
1464	if (vf_active && !radq)
1465	/* waiting for finish reset by virtual driver */
1466	if (i40e_sync_vfr_reset(hw, vf_id: vf->vf_id))
1467	dev_info(&pf->pdev->dev,
1468	"Reset VF %d never finished\n",
1469	vf->vf_id);
1470
1471	/* Reset VF using VPGEN_VFRTRIG reg. It is also setting
1472	* in progress state in rstat1 register.
1473	*/
1474	reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1475	reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1476	wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1477	i40e_flush(hw);
1478	}
1479	/* clear the VFLR bit in GLGEN_VFLRSTAT */
1480	reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
1481	bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
1482	wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1483	i40e_flush(hw);
1484
1485	if (i40e_quiesce_vf_pci(vf))
1486	dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
1487	vf->vf_id);
1488	}
1489
1490	/**
1491	* i40e_cleanup_reset_vf
1492	* @vf: pointer to the VF structure
1493	*
1494	* Cleanup a VF after the hardware reset is finished. Expects the caller to
1495	* have verified whether the reset is finished properly, and ensure the
1496	* minimum amount of wait time has passed.
1497	**/
1498	static void i40e_cleanup_reset_vf(struct i40e_vf *vf)
1499	{
1500	struct i40e_pf *pf = vf->pf;
1501	struct i40e_hw *hw = &pf->hw;
1502	u32 reg;
1503
1504	/* disable promisc modes in case they were enabled */
1505	i40e_config_vf_promiscuous_mode(vf, vsi_id: vf->lan_vsi_id, allmulti: false, alluni: false);
1506
1507	/* free VF resources to begin resetting the VSI state */
1508	i40e_free_vf_res(vf);
1509
1510	/* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg.
1511	* By doing this we allow HW to access VF memory at any point. If we
1512	* did it any sooner, HW could access memory while it was being freed
1513	* in i40e_free_vf_res(), causing an IOMMU fault.
1514	*
1515	* On the other hand, this needs to be done ASAP, because the VF driver
1516	* is waiting for this to happen and may report a timeout. It's
1517	* harmless, but it gets logged into Guest OS kernel log, so best avoid
1518	* it.
1519	*/
1520	reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1521	reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1522	wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1523
1524	/* reallocate VF resources to finish resetting the VSI state */
1525	if (!i40e_alloc_vf_res(vf)) {
1526	int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1527	i40e_enable_vf_mappings(vf);
1528	set_bit(nr: I40E_VF_STATE_ACTIVE, addr: &vf->vf_states);
1529	clear_bit(nr: I40E_VF_STATE_DISABLED, addr: &vf->vf_states);
1530	/* Do not notify the client during VF init */
1531	if (!test_and_clear_bit(nr: I40E_VF_STATE_PRE_ENABLE,
1532	addr: &vf->vf_states))
1533	i40e_notify_client_of_vf_reset(pf, vf_id: abs_vf_id);
1534	vf->num_vlan = 0;
1535	}
1536
1537	/* Tell the VF driver the reset is done. This needs to be done only
1538	* after VF has been fully initialized, because the VF driver may
1539	* request resources immediately after setting this flag.
1540	*/
1541	wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
1542	}
1543
1544	/**
1545	* i40e_reset_vf
1546	* @vf: pointer to the VF structure
1547	* @flr: VFLR was issued or not
1548	*
1549	* Returns true if the VF is in reset, resets successfully, or resets
1550	* are disabled and false otherwise.
1551	**/
1552	bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
1553	{
1554	struct i40e_pf *pf = vf->pf;
1555	struct i40e_hw *hw = &pf->hw;
1556	bool rsd = false;
1557	u32 reg;
1558	int i;
1559
1560	if (test_bit(__I40E_VF_RESETS_DISABLED, pf->state))
1561	return true;
1562
1563	/* Bail out if VFs are disabled. */
1564	if (test_bit(__I40E_VF_DISABLE, pf->state))
1565	return true;
1566
1567	/* If VF is being reset already we don't need to continue. */
1568	if (test_and_set_bit(nr: I40E_VF_STATE_RESETTING, addr: &vf->vf_states))
1569	return true;
1570
1571	i40e_trigger_vf_reset(vf, flr);
1572
1573	/* poll VPGEN_VFRSTAT reg to make sure
1574	* that reset is complete
1575	*/
1576	for (i = 0; i < 10; i++) {
1577	/* VF reset requires driver to first reset the VF and then
1578	* poll the status register to make sure that the reset
1579	* completed successfully. Due to internal HW FIFO flushes,
1580	* we must wait 10ms before the register will be valid.
1581	*/
1582	usleep_range(min: 10000, max: 20000);
1583	reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1584	if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
1585	rsd = true;
1586	break;
1587	}
1588	}
1589
1590	if (flr)
1591	usleep_range(min: 10000, max: 20000);
1592
1593	if (!rsd)
1594	dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1595	vf->vf_id);
1596	usleep_range(min: 10000, max: 20000);
1597
1598	/* On initial reset, we don't have any queues to disable */
1599	if (vf->lan_vsi_idx != 0)
1600	i40e_vsi_stop_rings(vsi: pf->vsi[vf->lan_vsi_idx]);
1601
1602	i40e_cleanup_reset_vf(vf);
1603
1604	i40e_flush(hw);
1605	usleep_range(min: 20000, max: 40000);
1606	clear_bit(nr: I40E_VF_STATE_RESETTING, addr: &vf->vf_states);
1607
1608	return true;
1609	}
1610
1611	/**
1612	* i40e_reset_all_vfs
1613	* @pf: pointer to the PF structure
1614	* @flr: VFLR was issued or not
1615	*
1616	* Reset all allocated VFs in one go. First, tell the hardware to reset each
1617	* VF, then do all the waiting in one chunk, and finally finish restoring each
1618	* VF after the wait. This is useful during PF routines which need to reset
1619	* all VFs, as otherwise it must perform these resets in a serialized fashion.
1620	*
1621	* Returns true if any VFs were reset, and false otherwise.
1622	**/
1623	bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
1624	{
1625	struct i40e_hw *hw = &pf->hw;
1626	struct i40e_vf *vf;
1627	u32 reg;
1628	int i;
1629
1630	/* If we don't have any VFs, then there is nothing to reset */
1631	if (!pf->num_alloc_vfs)
1632	return false;
1633
1634	/* If VFs have been disabled, there is no need to reset */
1635	if (test_and_set_bit(nr: __I40E_VF_DISABLE, addr: pf->state))
1636	return false;
1637
1638	/* Begin reset on all VFs at once */
1639	for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {
1640	/* If VF is being reset no need to trigger reset again */
1641	if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1642	i40e_trigger_vf_reset(vf, flr);
1643	}
1644
1645	/* HW requires some time to make sure it can flush the FIFO for a VF
1646	* when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
1647	* sequence to make sure that it has completed. We'll keep track of
1648	* the VFs using a simple iterator that increments once that VF has
1649	* finished resetting.
1650	*/
1651	for (i = 0, vf = &pf->vf[0]; i < 10 && vf < &pf->vf[pf->num_alloc_vfs]; ++i) {
1652	usleep_range(min: 10000, max: 20000);
1653
1654	/* Check each VF in sequence, beginning with the VF to fail
1655	* the previous check.
1656	*/
1657	while (vf < &pf->vf[pf->num_alloc_vfs]) {
1658	if (!test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states)) {
1659	reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1660	if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))
1661	break;
1662	}
1663
1664	/* If the current VF has finished resetting, move on
1665	* to the next VF in sequence.
1666	*/
1667	++vf;
1668	}
1669	}
1670
1671	if (flr)
1672	usleep_range(min: 10000, max: 20000);
1673
1674	/* Display a warning if at least one VF didn't manage to reset in
1675	* time, but continue on with the operation.
1676	*/
1677	if (vf < &pf->vf[pf->num_alloc_vfs])
1678	dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1679	vf->vf_id);
1680	usleep_range(min: 10000, max: 20000);
1681
1682	/* Begin disabling all the rings associated with VFs, but do not wait
1683	* between each VF.
1684	*/
1685	for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {
1686	/* On initial reset, we don't have any queues to disable */
1687	if (vf->lan_vsi_idx == 0)
1688	continue;
1689
1690	/* If VF is reset in another thread just continue */
1691	if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1692	continue;
1693
1694	i40e_vsi_stop_rings_no_wait(vsi: pf->vsi[vf->lan_vsi_idx]);
1695	}
1696
1697	/* Now that we've notified HW to disable all of the VF rings, wait
1698	* until they finish.
1699	*/
1700	for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {
1701	/* On initial reset, we don't have any queues to disable */
1702	if (vf->lan_vsi_idx == 0)
1703	continue;
1704
1705	/* If VF is reset in another thread just continue */
1706	if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1707	continue;
1708
1709	i40e_vsi_wait_queues_disabled(vsi: pf->vsi[vf->lan_vsi_idx]);
1710	}
1711
1712	/* Hw may need up to 50ms to finish disabling the RX queues. We
1713	* minimize the wait by delaying only once for all VFs.
1714	*/
1715	mdelay(50);
1716
1717	/* Finish the reset on each VF */
1718	for (vf = &pf->vf[0]; vf < &pf->vf[pf->num_alloc_vfs]; ++vf) {
1719	/* If VF is reset in another thread just continue */
1720	if (test_bit(I40E_VF_STATE_RESETTING, &vf->vf_states))
1721	continue;
1722
1723	i40e_cleanup_reset_vf(vf);
1724	}
1725
1726	i40e_flush(hw);
1727	usleep_range(min: 20000, max: 40000);
1728	clear_bit(nr: __I40E_VF_DISABLE, addr: pf->state);
1729
1730	return true;
1731	}
1732
1733	/**
1734	* i40e_free_vfs
1735	* @pf: pointer to the PF structure
1736	*
1737	* free VF resources
1738	**/
1739	void i40e_free_vfs(struct i40e_pf *pf)
1740	{
1741	struct i40e_hw *hw = &pf->hw;
1742	u32 reg_idx, bit_idx;
1743	int i, tmp, vf_id;
1744
1745	if (!pf->vf)
1746	return;
1747
1748	set_bit(nr: __I40E_VFS_RELEASING, addr: pf->state);
1749	while (test_and_set_bit(nr: __I40E_VF_DISABLE, addr: pf->state))
1750	usleep_range(min: 1000, max: 2000);
1751
1752	i40e_notify_client_of_vf_enable(pf, num_vfs: 0);
1753
1754	/* Disable IOV before freeing resources. This lets any VF drivers
1755	* running in the host get themselves cleaned up before we yank
1756	* the carpet out from underneath their feet.
1757	*/
1758	if (!pci_vfs_assigned(dev: pf->pdev))
1759	pci_disable_sriov(dev: pf->pdev);
1760	else
1761	dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1762
1763	/* Amortize wait time by stopping all VFs at the same time */
1764	for (i = 0; i < pf->num_alloc_vfs; i++) {
1765	if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1766	continue;
1767
1768	i40e_vsi_stop_rings_no_wait(vsi: pf->vsi[pf->vf[i].lan_vsi_idx]);
1769	}
1770
1771	for (i = 0; i < pf->num_alloc_vfs; i++) {
1772	if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1773	continue;
1774
1775	i40e_vsi_wait_queues_disabled(vsi: pf->vsi[pf->vf[i].lan_vsi_idx]);
1776	}
1777
1778	/* free up VF resources */
1779	tmp = pf->num_alloc_vfs;
1780	pf->num_alloc_vfs = 0;
1781	for (i = 0; i < tmp; i++) {
1782	if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1783	i40e_free_vf_res(vf: &pf->vf[i]);
1784	/* disable qp mappings */
1785	i40e_disable_vf_mappings(vf: &pf->vf[i]);
1786	}
1787
1788	kfree(objp: pf->vf);
1789	pf->vf = NULL;
1790
1791	/* This check is for when the driver is unloaded while VFs are
1792	* assigned. Setting the number of VFs to 0 through sysfs is caught
1793	* before this function ever gets called.
1794	*/
1795	if (!pci_vfs_assigned(dev: pf->pdev)) {
1796	/* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1797	* work correctly when SR-IOV gets re-enabled.
1798	*/
1799	for (vf_id = 0; vf_id < tmp; vf_id++) {
1800	reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1801	bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1802	wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1803	}
1804	}
1805	clear_bit(nr: __I40E_VF_DISABLE, addr: pf->state);
1806	clear_bit(nr: __I40E_VFS_RELEASING, addr: pf->state);
1807	}
1808
1809	#ifdef CONFIG_PCI_IOV
1810	/**
1811	* i40e_alloc_vfs
1812	* @pf: pointer to the PF structure
1813	* @num_alloc_vfs: number of VFs to allocate
1814	*
1815	* allocate VF resources
1816	**/
1817	int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1818	{
1819	struct i40e_vf *vfs;
1820	int i, ret = 0;
1821
1822	/* Disable interrupt 0 so we don't try to handle the VFLR. */
1823	i40e_irq_dynamic_disable_icr0(pf);
1824
1825	/* Check to see if we're just allocating resources for extant VFs */
1826	if (pci_num_vf(dev: pf->pdev) != num_alloc_vfs) {
1827	ret = pci_enable_sriov(dev: pf->pdev, nr_virtfn: num_alloc_vfs);
1828	if (ret) {
1829	clear_bit(nr: I40E_FLAG_VEB_MODE_ENA, addr: pf->flags);
1830	pf->num_alloc_vfs = 0;
1831	goto err_iov;
1832	}
1833	}
1834	/* allocate memory */
1835	vfs = kcalloc(n: num_alloc_vfs, size: sizeof(struct i40e_vf), GFP_KERNEL);
1836	if (!vfs) {
1837	ret = -ENOMEM;
1838	goto err_alloc;
1839	}
1840	pf->vf = vfs;
1841
1842	/* apply default profile */
1843	for (i = 0; i < num_alloc_vfs; i++) {
1844	vfs[i].pf = pf;
1845	vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1846	vfs[i].vf_id = i;
1847
1848	/* assign default capabilities */
1849	set_bit(nr: I40E_VIRTCHNL_VF_CAP_L2, addr: &vfs[i].vf_caps);
1850	vfs[i].spoofchk = true;
1851
1852	set_bit(nr: I40E_VF_STATE_PRE_ENABLE, addr: &vfs[i].vf_states);
1853
1854	}
1855	pf->num_alloc_vfs = num_alloc_vfs;
1856
1857	/* VF resources get allocated during reset */
1858	i40e_reset_all_vfs(pf, flr: false);
1859
1860	i40e_notify_client_of_vf_enable(pf, num_vfs: num_alloc_vfs);
1861
1862	err_alloc:
1863	if (ret)
1864	i40e_free_vfs(pf);
1865	err_iov:
1866	/* Re-enable interrupt 0. */
1867	i40e_irq_dynamic_enable_icr0(pf);
1868	return ret;
1869	}
1870
1871	#endif
1872	/**
1873	* i40e_pci_sriov_enable
1874	* @pdev: pointer to a pci_dev structure
1875	* @num_vfs: number of VFs to allocate
1876	*
1877	* Enable or change the number of VFs
1878	**/
1879	static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1880	{
1881	#ifdef CONFIG_PCI_IOV
1882	struct i40e_pf *pf = pci_get_drvdata(pdev);
1883	int pre_existing_vfs = pci_num_vf(dev: pdev);
1884	int err = 0;
1885
1886	if (test_bit(__I40E_TESTING, pf->state)) {
1887	dev_warn(&pdev->dev,
1888	"Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1889	err = -EPERM;
1890	goto err_out;
1891	}
1892
1893	if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1894	i40e_free_vfs(pf);
1895	else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1896	goto out;
1897
1898	if (num_vfs > pf->num_req_vfs) {
1899	dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1900	num_vfs, pf->num_req_vfs);
1901	err = -EPERM;
1902	goto err_out;
1903	}
1904
1905	dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1906	err = i40e_alloc_vfs(pf, num_alloc_vfs: num_vfs);
1907	if (err) {
1908	dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1909	goto err_out;
1910	}
1911
1912	out:
1913	return num_vfs;
1914
1915	err_out:
1916	return err;
1917	#endif
1918	return 0;
1919	}
1920
1921	/**
1922	* i40e_pci_sriov_configure
1923	* @pdev: pointer to a pci_dev structure
1924	* @num_vfs: number of VFs to allocate
1925	*
1926	* Enable or change the number of VFs. Called when the user updates the number
1927	* of VFs in sysfs.
1928	**/
1929	int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1930	{
1931	struct i40e_pf *pf = pci_get_drvdata(pdev);
1932	int ret = 0;
1933
1934	if (test_and_set_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state)) {
1935	dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n");
1936	return -EAGAIN;
1937	}
1938
1939	if (num_vfs) {
1940	if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) {
1941	set_bit(nr: I40E_FLAG_VEB_MODE_ENA, addr: pf->flags);
1942	i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
1943	}
1944	ret = i40e_pci_sriov_enable(pdev, num_vfs);
1945	goto sriov_configure_out;
1946	}
1947
1948	if (!pci_vfs_assigned(dev: pf->pdev)) {
1949	i40e_free_vfs(pf);
1950	clear_bit(nr: I40E_FLAG_VEB_MODE_ENA, addr: pf->flags);
1951	i40e_do_reset_safe(pf, I40E_PF_RESET_AND_REBUILD_FLAG);
1952	} else {
1953	dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1954	ret = -EINVAL;
1955	goto sriov_configure_out;
1956	}
1957	sriov_configure_out:
1958	clear_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state);
1959	return ret;
1960	}
1961
1962	/***********************virtual channel routines******************/
1963
1964	/**
1965	* i40e_vc_send_msg_to_vf
1966	* @vf: pointer to the VF info
1967	* @v_opcode: virtual channel opcode
1968	* @v_retval: virtual channel return value
1969	* @msg: pointer to the msg buffer
1970	* @msglen: msg length
1971	*
1972	* send msg to VF
1973	**/
1974	static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1975	u32 v_retval, u8 *msg, u16 msglen)
1976	{
1977	struct i40e_pf *pf;
1978	struct i40e_hw *hw;
1979	int abs_vf_id;
1980	int aq_ret;
1981
1982	/* validate the request */
1983	if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1984	return -EINVAL;
1985
1986	pf = vf->pf;
1987	hw = &pf->hw;
1988	abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1989
1990	aq_ret = i40e_aq_send_msg_to_vf(hw, vfid: abs_vf_id, v_opcode, v_retval,
1991	msg, msglen, NULL);
1992	if (aq_ret) {
1993	dev_info(&pf->pdev->dev,
1994	"Unable to send the message to VF %d aq_err %d\n",
1995	vf->vf_id, pf->hw.aq.asq_last_status);
1996	return -EIO;
1997	}
1998
1999	return 0;
2000	}
2001
2002	/**
2003	* i40e_vc_send_resp_to_vf
2004	* @vf: pointer to the VF info
2005	* @opcode: operation code
2006	* @retval: return value
2007	*
2008	* send resp msg to VF
2009	**/
2010	static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
2011	enum virtchnl_ops opcode,
2012	int retval)
2013	{
2014	return i40e_vc_send_msg_to_vf(vf, v_opcode: opcode, v_retval: retval, NULL, msglen: 0);
2015	}
2016
2017	/**
2018	* i40e_sync_vf_state
2019	* @vf: pointer to the VF info
2020	* @state: VF state
2021	*
2022	* Called from a VF message to synchronize the service with a potential
2023	* VF reset state
2024	**/
2025	static bool i40e_sync_vf_state(struct i40e_vf *vf, enum i40e_vf_states state)
2026	{
2027	int i;
2028
2029	/* When handling some messages, it needs VF state to be set.
2030	* It is possible that this flag is cleared during VF reset,
2031	* so there is a need to wait until the end of the reset to
2032	* handle the request message correctly.
2033	*/
2034	for (i = 0; i < I40E_VF_STATE_WAIT_COUNT; i++) {
2035	if (test_bit(state, &vf->vf_states))
2036	return true;
2037	usleep_range(min: 10000, max: 20000);
2038	}
2039
2040	return test_bit(state, &vf->vf_states);
2041	}
2042
2043	/**
2044	* i40e_vc_get_version_msg
2045	* @vf: pointer to the VF info
2046	* @msg: pointer to the msg buffer
2047	*
2048	* called from the VF to request the API version used by the PF
2049	**/
2050	static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
2051	{
2052	struct virtchnl_version_info info = {
2053	VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
2054	};
2055
2056	vf->vf_ver = *(struct virtchnl_version_info *)msg;
2057	/* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
2058	if (VF_IS_V10(&vf->vf_ver))
2059	info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
2060	return i40e_vc_send_msg_to_vf(vf, v_opcode: VIRTCHNL_OP_VERSION,
2061	v_retval: 0, msg: (u8 *)&info,
2062	msglen: sizeof(struct virtchnl_version_info));
2063	}
2064
2065	/**
2066	* i40e_del_qch - delete all the additional VSIs created as a part of ADq
2067	* @vf: pointer to VF structure
2068	**/
2069	static void i40e_del_qch(struct i40e_vf *vf)
2070	{
2071	struct i40e_pf *pf = vf->pf;
2072	int i;
2073
2074	/* first element in the array belongs to primary VF VSI and we shouldn't
2075	* delete it. We should however delete the rest of the VSIs created
2076	*/
2077	for (i = 1; i < vf->num_tc; i++) {
2078	if (vf->ch[i].vsi_idx) {
2079	i40e_vsi_release(vsi: pf->vsi[vf->ch[i].vsi_idx]);
2080	vf->ch[i].vsi_idx = 0;
2081	vf->ch[i].vsi_id = 0;
2082	}
2083	}
2084	}
2085
2086	/**
2087	* i40e_vc_get_max_frame_size
2088	* @vf: pointer to the VF
2089	*
2090	* Max frame size is determined based on the current port's max frame size and
2091	* whether a port VLAN is configured on this VF. The VF is not aware whether
2092	* it's in a port VLAN so the PF needs to account for this in max frame size
2093	* checks and sending the max frame size to the VF.
2094	**/
2095	static u16 i40e_vc_get_max_frame_size(struct i40e_vf *vf)
2096	{
2097	u16 max_frame_size = vf->pf->hw.phy.link_info.max_frame_size;
2098
2099	if (vf->port_vlan_id)
2100	max_frame_size -= VLAN_HLEN;
2101
2102	return max_frame_size;
2103	}
2104
2105	/**
2106	* i40e_vc_get_vf_resources_msg
2107	* @vf: pointer to the VF info
2108	* @msg: pointer to the msg buffer
2109	*
2110	* called from the VF to request its resources
2111	**/
2112	static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
2113	{
2114	struct virtchnl_vf_resource *vfres = NULL;
2115	struct i40e_pf *pf = vf->pf;
2116	struct i40e_vsi *vsi;
2117	int num_vsis = 1;
2118	int aq_ret = 0;
2119	size_t len = 0;
2120	int ret;
2121
2122	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_INIT)) {
2123	aq_ret = -EINVAL;
2124	goto err;
2125	}
2126
2127	len = virtchnl_struct_size(vfres, vsi_res, num_vsis);
2128	vfres = kzalloc(size: len, GFP_KERNEL);
2129	if (!vfres) {
2130	aq_ret = -ENOMEM;
2131	len = 0;
2132	goto err;
2133	}
2134	if (VF_IS_V11(&vf->vf_ver))
2135	vf->driver_caps = *(u32 *)msg;
2136	else
2137	vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
2138	VIRTCHNL_VF_OFFLOAD_RSS_REG |
2139	VIRTCHNL_VF_OFFLOAD_VLAN;
2140
2141	vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
2142	vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
2143	vsi = pf->vsi[vf->lan_vsi_idx];
2144	if (!vsi->info.pvid)
2145	vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
2146
2147	if (i40e_vf_client_capable(pf, vf_id: vf->vf_id) &&
2148	(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RDMA)) {
2149	vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RDMA;
2150	set_bit(nr: I40E_VF_STATE_RDMAENA, addr: &vf->vf_states);
2151	} else {
2152	clear_bit(nr: I40E_VF_STATE_RDMAENA, addr: &vf->vf_states);
2153	}
2154
2155	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
2156	vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
2157	} else {
2158	if (test_bit(I40E_HW_CAP_RSS_AQ, pf->hw.caps) &&
2159	(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
2160	vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
2161	else
2162	vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
2163	}
2164
2165	if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, pf->hw.caps)) {
2166	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
2167	vfres->vf_cap_flags |=
2168	VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
2169	}
2170
2171	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
2172	vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
2173
2174	if (test_bit(I40E_HW_CAP_OUTER_UDP_CSUM, pf->hw.caps) &&
2175	(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
2176	vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
2177
2178	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
2179	if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
2180	dev_err(&pf->pdev->dev,
2181	"VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
2182	vf->vf_id);
2183	aq_ret = -EINVAL;
2184	goto err;
2185	}
2186	vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
2187	}
2188
2189	if (test_bit(I40E_HW_CAP_WB_ON_ITR, pf->hw.caps)) {
2190	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
2191	vfres->vf_cap_flags |=
2192	VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
2193	}
2194
2195	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
2196	vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
2197
2198	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)
2199	vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ;
2200
2201	vfres->num_vsis = num_vsis;
2202	vfres->num_queue_pairs = vf->num_queue_pairs;
2203	vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
2204	vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
2205	vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
2206	vfres->max_mtu = i40e_vc_get_max_frame_size(vf);
2207
2208	if (vf->lan_vsi_idx) {
2209	vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
2210	vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
2211	vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
2212	/* VFs only use TC 0 */
2213	vfres->vsi_res[0].qset_handle
2214	= le16_to_cpu(vsi->info.qs_handle[0]);
2215	if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) && !vf->pf_set_mac) {
2216	i40e_del_mac_filter(vsi, macaddr: vf->default_lan_addr.addr);
2217	eth_zero_addr(addr: vf->default_lan_addr.addr);
2218	}
2219	ether_addr_copy(dst: vfres->vsi_res[0].default_mac_addr,
2220	src: vf->default_lan_addr.addr);
2221	}
2222	set_bit(nr: I40E_VF_STATE_ACTIVE, addr: &vf->vf_states);
2223
2224	err:
2225	/* send the response back to the VF */
2226	ret = i40e_vc_send_msg_to_vf(vf, v_opcode: VIRTCHNL_OP_GET_VF_RESOURCES,
2227	v_retval: aq_ret, msg: (u8 *)vfres, msglen: len);
2228
2229	kfree(objp: vfres);
2230	return ret;
2231	}
2232
2233	/**
2234	* i40e_vc_config_promiscuous_mode_msg
2235	* @vf: pointer to the VF info
2236	* @msg: pointer to the msg buffer
2237	*
2238	* called from the VF to configure the promiscuous mode of
2239	* VF vsis
2240	**/
2241	static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg)
2242	{
2243	struct virtchnl_promisc_info *info =
2244	(struct virtchnl_promisc_info *)msg;
2245	struct i40e_pf *pf = vf->pf;
2246	bool allmulti = false;
2247	bool alluni = false;
2248	int aq_ret = 0;
2249
2250	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
2251	aq_ret = -EINVAL;
2252	goto err_out;
2253	}
2254	if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2255	dev_err(&pf->pdev->dev,
2256	"Unprivileged VF %d is attempting to configure promiscuous mode\n",
2257	vf->vf_id);
2258
2259	/* Lie to the VF on purpose, because this is an error we can
2260	* ignore. Unprivileged VF is not a virtual channel error.
2261	*/
2262	aq_ret = 0;
2263	goto err_out;
2264	}
2265
2266	if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) {
2267	aq_ret = -EINVAL;
2268	goto err_out;
2269	}
2270
2271	if (!i40e_vc_isvalid_vsi_id(vf, vsi_id: info->vsi_id)) {
2272	aq_ret = -EINVAL;
2273	goto err_out;
2274	}
2275
2276	/* Multicast promiscuous handling*/
2277	if (info->flags & FLAG_VF_MULTICAST_PROMISC)
2278	allmulti = true;
2279
2280	if (info->flags & FLAG_VF_UNICAST_PROMISC)
2281	alluni = true;
2282	aq_ret = i40e_config_vf_promiscuous_mode(vf, vsi_id: info->vsi_id, allmulti,
2283	alluni);
2284	if (aq_ret)
2285	goto err_out;
2286
2287	if (allmulti) {
2288	if (!test_and_set_bit(nr: I40E_VF_STATE_MC_PROMISC,
2289	addr: &vf->vf_states))
2290	dev_info(&pf->pdev->dev,
2291	"VF %d successfully set multicast promiscuous mode\n",
2292	vf->vf_id);
2293	} else if (test_and_clear_bit(nr: I40E_VF_STATE_MC_PROMISC,
2294	addr: &vf->vf_states))
2295	dev_info(&pf->pdev->dev,
2296	"VF %d successfully unset multicast promiscuous mode\n",
2297	vf->vf_id);
2298
2299	if (alluni) {
2300	if (!test_and_set_bit(nr: I40E_VF_STATE_UC_PROMISC,
2301	addr: &vf->vf_states))
2302	dev_info(&pf->pdev->dev,
2303	"VF %d successfully set unicast promiscuous mode\n",
2304	vf->vf_id);
2305	} else if (test_and_clear_bit(nr: I40E_VF_STATE_UC_PROMISC,
2306	addr: &vf->vf_states))
2307	dev_info(&pf->pdev->dev,
2308	"VF %d successfully unset unicast promiscuous mode\n",
2309	vf->vf_id);
2310
2311	err_out:
2312	/* send the response to the VF */
2313	return i40e_vc_send_resp_to_vf(vf,
2314	opcode: VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
2315	retval: aq_ret);
2316	}
2317
2318	/**
2319	* i40e_vc_config_queues_msg
2320	* @vf: pointer to the VF info
2321	* @msg: pointer to the msg buffer
2322	*
2323	* called from the VF to configure the rx/tx
2324	* queues
2325	**/
2326	static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
2327	{
2328	struct virtchnl_vsi_queue_config_info *qci =
2329	(struct virtchnl_vsi_queue_config_info *)msg;
2330	struct virtchnl_queue_pair_info *qpi;
2331	u16 vsi_id, vsi_queue_id = 0;
2332	struct i40e_pf *pf = vf->pf;
2333	int i, j = 0, idx = 0;
2334	struct i40e_vsi *vsi;
2335	u16 num_qps_all = 0;
2336	int aq_ret = 0;
2337
2338	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
2339	aq_ret = -EINVAL;
2340	goto error_param;
2341	}
2342
2343	if (!i40e_vc_isvalid_vsi_id(vf, vsi_id: qci->vsi_id)) {
2344	aq_ret = -EINVAL;
2345	goto error_param;
2346	}
2347
2348	if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) {
2349	aq_ret = -EINVAL;
2350	goto error_param;
2351	}
2352
2353	if (vf->adq_enabled) {
2354	for (i = 0; i < vf->num_tc; i++)
2355	num_qps_all += vf->ch[i].num_qps;
2356	if (num_qps_all != qci->num_queue_pairs) {
2357	aq_ret = -EINVAL;
2358	goto error_param;
2359	}
2360	}
2361
2362	vsi_id = qci->vsi_id;
2363
2364	for (i = 0; i < qci->num_queue_pairs; i++) {
2365	qpi = &qci->qpair[i];
2366
2367	if (!vf->adq_enabled) {
2368	if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
2369	qid: qpi->txq.queue_id)) {
2370	aq_ret = -EINVAL;
2371	goto error_param;
2372	}
2373
2374	vsi_queue_id = qpi->txq.queue_id;
2375
2376	if (qpi->txq.vsi_id != qci->vsi_id ||
2377	qpi->rxq.vsi_id != qci->vsi_id ||
2378	qpi->rxq.queue_id != vsi_queue_id) {
2379	aq_ret = -EINVAL;
2380	goto error_param;
2381	}
2382	}
2383
2384	if (vf->adq_enabled) {
2385	if (idx >= ARRAY_SIZE(vf->ch)) {
2386	aq_ret = -ENODEV;
2387	goto error_param;
2388	}
2389	vsi_id = vf->ch[idx].vsi_id;
2390	}
2391
2392	if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
2393	info: &qpi->rxq) ||
2394	i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
2395	info: &qpi->txq)) {
2396	aq_ret = -EINVAL;
2397	goto error_param;
2398	}
2399
2400	/* For ADq there can be up to 4 VSIs with max 4 queues each.
2401	* VF does not know about these additional VSIs and all
2402	* it cares is about its own queues. PF configures these queues
2403	* to its appropriate VSIs based on TC mapping
2404	*/
2405	if (vf->adq_enabled) {
2406	if (idx >= ARRAY_SIZE(vf->ch)) {
2407	aq_ret = -ENODEV;
2408	goto error_param;
2409	}
2410	if (j == (vf->ch[idx].num_qps - 1)) {
2411	idx++;
2412	j = 0; /* resetting the queue count */
2413	vsi_queue_id = 0;
2414	} else {
2415	j++;
2416	vsi_queue_id++;
2417	}
2418	}
2419	}
2420	/* set vsi num_queue_pairs in use to num configured by VF */
2421	if (!vf->adq_enabled) {
2422	pf->vsi[vf->lan_vsi_idx]->num_queue_pairs =
2423	qci->num_queue_pairs;
2424	} else {
2425	for (i = 0; i < vf->num_tc; i++) {
2426	vsi = pf->vsi[vf->ch[i].vsi_idx];
2427	vsi->num_queue_pairs = vf->ch[i].num_qps;
2428
2429	if (i40e_update_adq_vsi_queues(vsi, vsi_offset: i)) {
2430	aq_ret = -EIO;
2431	goto error_param;
2432	}
2433	}
2434	}
2435
2436	error_param:
2437	/* send the response to the VF */
2438	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_CONFIG_VSI_QUEUES,
2439	retval: aq_ret);
2440	}
2441
2442	/**
2443	* i40e_validate_queue_map - check queue map is valid
2444	* @vf: the VF structure pointer
2445	* @vsi_id: vsi id
2446	* @queuemap: Tx or Rx queue map
2447	*
2448	* check if Tx or Rx queue map is valid
2449	**/
2450	static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id,
2451	unsigned long queuemap)
2452	{
2453	u16 vsi_queue_id, queue_id;
2454
2455	for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) {
2456	if (vf->adq_enabled) {
2457	vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id;
2458	queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF);
2459	} else {
2460	queue_id = vsi_queue_id;
2461	}
2462
2463	if (!i40e_vc_isvalid_queue_id(vf, vsi_id, qid: queue_id))
2464	return -EINVAL;
2465	}
2466
2467	return 0;
2468	}
2469
2470	/**
2471	* i40e_vc_config_irq_map_msg
2472	* @vf: pointer to the VF info
2473	* @msg: pointer to the msg buffer
2474	*
2475	* called from the VF to configure the irq to
2476	* queue map
2477	**/
2478	static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg)
2479	{
2480	struct virtchnl_irq_map_info *irqmap_info =
2481	(struct virtchnl_irq_map_info *)msg;
2482	struct virtchnl_vector_map *map;
2483	int aq_ret = 0;
2484	u16 vsi_id;
2485	int i;
2486
2487	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
2488	aq_ret = -EINVAL;
2489	goto error_param;
2490	}
2491
2492	if (irqmap_info->num_vectors >
2493	vf->pf->hw.func_caps.num_msix_vectors_vf) {
2494	aq_ret = -EINVAL;
2495	goto error_param;
2496	}
2497
2498	for (i = 0; i < irqmap_info->num_vectors; i++) {
2499	map = &irqmap_info->vecmap[i];
2500	/* validate msg params */
2501	if (!i40e_vc_isvalid_vector_id(vf, vector_id: map->vector_id) ||
2502	!i40e_vc_isvalid_vsi_id(vf, vsi_id: map->vsi_id)) {
2503	aq_ret = -EINVAL;
2504	goto error_param;
2505	}
2506	vsi_id = map->vsi_id;
2507
2508	if (i40e_validate_queue_map(vf, vsi_id, queuemap: map->rxq_map)) {
2509	aq_ret = -EINVAL;
2510	goto error_param;
2511	}
2512
2513	if (i40e_validate_queue_map(vf, vsi_id, queuemap: map->txq_map)) {
2514	aq_ret = -EINVAL;
2515	goto error_param;
2516	}
2517
2518	i40e_config_irq_link_list(vf, vsi_id, vecmap: map);
2519	}
2520	error_param:
2521	/* send the response to the VF */
2522	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_CONFIG_IRQ_MAP,
2523	retval: aq_ret);
2524	}
2525
2526	/**
2527	* i40e_ctrl_vf_tx_rings
2528	* @vsi: the SRIOV VSI being configured
2529	* @q_map: bit map of the queues to be enabled
2530	* @enable: start or stop the queue
2531	**/
2532	static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2533	bool enable)
2534	{
2535	struct i40e_pf *pf = vsi->back;
2536	int ret = 0;
2537	u16 q_id;
2538
2539	for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2540	ret = i40e_control_wait_tx_q(seid: vsi->seid, pf,
2541	pf_q: vsi->base_queue + q_id,
2542	is_xdp: false /*is xdp*/, enable);
2543	if (ret)
2544	break;
2545	}
2546	return ret;
2547	}
2548
2549	/**
2550	* i40e_ctrl_vf_rx_rings
2551	* @vsi: the SRIOV VSI being configured
2552	* @q_map: bit map of the queues to be enabled
2553	* @enable: start or stop the queue
2554	**/
2555	static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2556	bool enable)
2557	{
2558	struct i40e_pf *pf = vsi->back;
2559	int ret = 0;
2560	u16 q_id;
2561
2562	for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2563	ret = i40e_control_wait_rx_q(pf, pf_q: vsi->base_queue + q_id,
2564	enable);
2565	if (ret)
2566	break;
2567	}
2568	return ret;
2569	}
2570
2571	/**
2572	* i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL
2573	* @vqs: virtchnl_queue_select structure containing bitmaps to validate
2574	*
2575	* Returns true if validation was successful, else false.
2576	*/
2577	static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
2578	{
2579	if ((!vqs->rx_queues && !vqs->tx_queues) ||
2580	vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) ||
2581	vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES))
2582	return false;
2583
2584	return true;
2585	}
2586
2587	/**
2588	* i40e_vc_enable_queues_msg
2589	* @vf: pointer to the VF info
2590	* @msg: pointer to the msg buffer
2591	*
2592	* called from the VF to enable all or specific queue(s)
2593	**/
2594	static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg)
2595	{
2596	struct virtchnl_queue_select *vqs =
2597	(struct virtchnl_queue_select *)msg;
2598	struct i40e_pf *pf = vf->pf;
2599	int aq_ret = 0;
2600	int i;
2601
2602	if (vf->is_disabled_from_host) {
2603	aq_ret = -EPERM;
2604	dev_info(&pf->pdev->dev,
2605	"Admin has disabled VF %d, will not enable queues\n",
2606	vf->vf_id);
2607	goto error_param;
2608	}
2609
2610	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2611	aq_ret = -EINVAL;
2612	goto error_param;
2613	}
2614
2615	if (!i40e_vc_isvalid_vsi_id(vf, vsi_id: vqs->vsi_id)) {
2616	aq_ret = -EINVAL;
2617	goto error_param;
2618	}
2619
2620	if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2621	aq_ret = -EINVAL;
2622	goto error_param;
2623	}
2624
2625	/* Use the queue bit map sent by the VF */
2626	if (i40e_ctrl_vf_rx_rings(vsi: pf->vsi[vf->lan_vsi_idx], q_map: vqs->rx_queues,
2627	enable: true)) {
2628	aq_ret = -EIO;
2629	goto error_param;
2630	}
2631	if (i40e_ctrl_vf_tx_rings(vsi: pf->vsi[vf->lan_vsi_idx], q_map: vqs->tx_queues,
2632	enable: true)) {
2633	aq_ret = -EIO;
2634	goto error_param;
2635	}
2636
2637	/* need to start the rings for additional ADq VSI's as well */
2638	if (vf->adq_enabled) {
2639	/* zero belongs to LAN VSI */
2640	for (i = 1; i < vf->num_tc; i++) {
2641	if (i40e_vsi_start_rings(vsi: pf->vsi[vf->ch[i].vsi_idx]))
2642	aq_ret = -EIO;
2643	}
2644	}
2645
2646	error_param:
2647	/* send the response to the VF */
2648	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_ENABLE_QUEUES,
2649	retval: aq_ret);
2650	}
2651
2652	/**
2653	* i40e_vc_disable_queues_msg
2654	* @vf: pointer to the VF info
2655	* @msg: pointer to the msg buffer
2656	*
2657	* called from the VF to disable all or specific
2658	* queue(s)
2659	**/
2660	static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg)
2661	{
2662	struct virtchnl_queue_select *vqs =
2663	(struct virtchnl_queue_select *)msg;
2664	struct i40e_pf *pf = vf->pf;
2665	int aq_ret = 0;
2666
2667	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
2668	aq_ret = -EINVAL;
2669	goto error_param;
2670	}
2671
2672	if (!i40e_vc_isvalid_vsi_id(vf, vsi_id: vqs->vsi_id)) {
2673	aq_ret = -EINVAL;
2674	goto error_param;
2675	}
2676
2677	if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2678	aq_ret = -EINVAL;
2679	goto error_param;
2680	}
2681
2682	/* Use the queue bit map sent by the VF */
2683	if (i40e_ctrl_vf_tx_rings(vsi: pf->vsi[vf->lan_vsi_idx], q_map: vqs->tx_queues,
2684	enable: false)) {
2685	aq_ret = -EIO;
2686	goto error_param;
2687	}
2688	if (i40e_ctrl_vf_rx_rings(vsi: pf->vsi[vf->lan_vsi_idx], q_map: vqs->rx_queues,
2689	enable: false)) {
2690	aq_ret = -EIO;
2691	goto error_param;
2692	}
2693	error_param:
2694	/* send the response to the VF */
2695	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_DISABLE_QUEUES,
2696	retval: aq_ret);
2697	}
2698
2699	/**
2700	* i40e_check_enough_queue - find big enough queue number
2701	* @vf: pointer to the VF info
2702	* @needed: the number of items needed
2703	*
2704	* Returns the base item index of the queue, or negative for error
2705	**/
2706	static int i40e_check_enough_queue(struct i40e_vf *vf, u16 needed)
2707	{
2708	unsigned int i, cur_queues, more, pool_size;
2709	struct i40e_lump_tracking *pile;
2710	struct i40e_pf *pf = vf->pf;
2711	struct i40e_vsi *vsi;
2712
2713	vsi = pf->vsi[vf->lan_vsi_idx];
2714	cur_queues = vsi->alloc_queue_pairs;
2715
2716	/* if current allocated queues are enough for need */
2717	if (cur_queues >= needed)
2718	return vsi->base_queue;
2719
2720	pile = pf->qp_pile;
2721	if (cur_queues > 0) {
2722	/* if the allocated queues are not zero
2723	* just check if there are enough queues for more
2724	* behind the allocated queues.
2725	*/
2726	more = needed - cur_queues;
2727	for (i = vsi->base_queue + cur_queues;
2728	i < pile->num_entries; i++) {
2729	if (pile->list[i] & I40E_PILE_VALID_BIT)
2730	break;
2731
2732	if (more-- == 1)
2733	/* there is enough */
2734	return vsi->base_queue;
2735	}
2736	}
2737
2738	pool_size = 0;
2739	for (i = 0; i < pile->num_entries; i++) {
2740	if (pile->list[i] & I40E_PILE_VALID_BIT) {
2741	pool_size = 0;
2742	continue;
2743	}
2744	if (needed <= ++pool_size)
2745	/* there is enough */
2746	return i;
2747	}
2748
2749	return -ENOMEM;
2750	}
2751
2752	/**
2753	* i40e_vc_request_queues_msg
2754	* @vf: pointer to the VF info
2755	* @msg: pointer to the msg buffer
2756	*
2757	* VFs get a default number of queues but can use this message to request a
2758	* different number. If the request is successful, PF will reset the VF and
2759	* return 0. If unsuccessful, PF will send message informing VF of number of
2760	* available queues and return result of sending VF a message.
2761	**/
2762	static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
2763	{
2764	struct virtchnl_vf_res_request *vfres =
2765	(struct virtchnl_vf_res_request *)msg;
2766	u16 req_pairs = vfres->num_queue_pairs;
2767	u8 cur_pairs = vf->num_queue_pairs;
2768	struct i40e_pf *pf = vf->pf;
2769
2770	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE))
2771	return -EINVAL;
2772
2773	if (req_pairs > I40E_MAX_VF_QUEUES) {
2774	dev_err(&pf->pdev->dev,
2775	"VF %d tried to request more than %d queues.\n",
2776	vf->vf_id,
2777	I40E_MAX_VF_QUEUES);
2778	vfres->num_queue_pairs = I40E_MAX_VF_QUEUES;
2779	} else if (req_pairs - cur_pairs > pf->queues_left) {
2780	dev_warn(&pf->pdev->dev,
2781	"VF %d requested %d more queues, but only %d left.\n",
2782	vf->vf_id,
2783	req_pairs - cur_pairs,
2784	pf->queues_left);
2785	vfres->num_queue_pairs = pf->queues_left + cur_pairs;
2786	} else if (i40e_check_enough_queue(vf, needed: req_pairs) < 0) {
2787	dev_warn(&pf->pdev->dev,
2788	"VF %d requested %d more queues, but there is not enough for it.\n",
2789	vf->vf_id,
2790	req_pairs - cur_pairs);
2791	vfres->num_queue_pairs = cur_pairs;
2792	} else {
2793	/* successful request */
2794	vf->num_req_queues = req_pairs;
2795	i40e_vc_reset_vf(vf, notify_vf: true);
2796	return 0;
2797	}
2798
2799	return i40e_vc_send_msg_to_vf(vf, v_opcode: VIRTCHNL_OP_REQUEST_QUEUES, v_retval: 0,
2800	msg: (u8 *)vfres, msglen: sizeof(*vfres));
2801	}
2802
2803	/**
2804	* i40e_vc_get_stats_msg
2805	* @vf: pointer to the VF info
2806	* @msg: pointer to the msg buffer
2807	*
2808	* called from the VF to get vsi stats
2809	**/
2810	static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg)
2811	{
2812	struct virtchnl_queue_select *vqs =
2813	(struct virtchnl_queue_select *)msg;
2814	struct i40e_pf *pf = vf->pf;
2815	struct i40e_eth_stats stats;
2816	int aq_ret = 0;
2817	struct i40e_vsi *vsi;
2818
2819	memset(&stats, 0, sizeof(struct i40e_eth_stats));
2820
2821	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
2822	aq_ret = -EINVAL;
2823	goto error_param;
2824	}
2825
2826	if (!i40e_vc_isvalid_vsi_id(vf, vsi_id: vqs->vsi_id)) {
2827	aq_ret = -EINVAL;
2828	goto error_param;
2829	}
2830
2831	vsi = pf->vsi[vf->lan_vsi_idx];
2832	if (!vsi) {
2833	aq_ret = -EINVAL;
2834	goto error_param;
2835	}
2836	i40e_update_eth_stats(vsi);
2837	stats = vsi->eth_stats;
2838
2839	error_param:
2840	/* send the response back to the VF */
2841	return i40e_vc_send_msg_to_vf(vf, v_opcode: VIRTCHNL_OP_GET_STATS, v_retval: aq_ret,
2842	msg: (u8 *)&stats, msglen: sizeof(stats));
2843	}
2844
2845	/**
2846	* i40e_can_vf_change_mac
2847	* @vf: pointer to the VF info
2848	*
2849	* Return true if the VF is allowed to change its MAC filters, false otherwise
2850	*/
2851	static bool i40e_can_vf_change_mac(struct i40e_vf *vf)
2852	{
2853	/* If the VF MAC address has been set administratively (via the
2854	* ndo_set_vf_mac command), then deny permission to the VF to
2855	* add/delete unicast MAC addresses, unless the VF is trusted
2856	*/
2857	if (vf->pf_set_mac && !vf->trusted)
2858	return false;
2859
2860	return true;
2861	}
2862
2863	#define I40E_MAX_MACVLAN_PER_HW 3072
2864	#define I40E_MAX_MACVLAN_PER_PF(num_ports) (I40E_MAX_MACVLAN_PER_HW / \
2865	(num_ports))
2866	/* If the VF is not trusted restrict the number of MAC/VLAN it can program
2867	* MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast
2868	*/
2869	#define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1)
2870	#define I40E_VC_MAX_VLAN_PER_VF 16
2871
2872	#define I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(vf_num, num_ports) \
2873	({ typeof(vf_num) vf_num_ = (vf_num); \
2874	typeof(num_ports) num_ports_ = (num_ports); \
2875	((I40E_MAX_MACVLAN_PER_PF(num_ports_) - vf_num_ * \
2876	I40E_VC_MAX_MAC_ADDR_PER_VF) / vf_num_) + \
2877	I40E_VC_MAX_MAC_ADDR_PER_VF; })
2878	/**
2879	* i40e_check_vf_permission
2880	* @vf: pointer to the VF info
2881	* @al: MAC address list from virtchnl
2882	*
2883	* Check that the given list of MAC addresses is allowed. Will return -EPERM
2884	* if any address in the list is not valid. Checks the following conditions:
2885	*
2886	* 1) broadcast and zero addresses are never valid
2887	* 2) unicast addresses are not allowed if the VMM has administratively set
2888	* the VF MAC address, unless the VF is marked as privileged.
2889	* 3) There is enough space to add all the addresses.
2890	*
2891	* Note that to guarantee consistency, it is expected this function be called
2892	* while holding the mac_filter_hash_lock, as otherwise the current number of
2893	* addresses might not be accurate.
2894	**/
2895	static inline int i40e_check_vf_permission(struct i40e_vf *vf,
2896	struct virtchnl_ether_addr_list *al)
2897	{
2898	struct i40e_pf *pf = vf->pf;
2899	struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
2900	struct i40e_hw *hw = &pf->hw;
2901	int mac2add_cnt = 0;
2902	int i;
2903
2904	for (i = 0; i < al->num_elements; i++) {
2905	struct i40e_mac_filter *f;
2906	u8 *addr = al->list[i].addr;
2907
2908	if (is_broadcast_ether_addr(addr) ||
2909	is_zero_ether_addr(addr)) {
2910	dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
2911	addr);
2912	return -EINVAL;
2913	}
2914
2915	/* If the host VMM administrator has set the VF MAC address
2916	* administratively via the ndo_set_vf_mac command then deny
2917	* permission to the VF to add or delete unicast MAC addresses.
2918	* Unless the VF is privileged and then it can do whatever.
2919	* The VF may request to set the MAC address filter already
2920	* assigned to it so do not return an error in that case.
2921	*/
2922	if (!i40e_can_vf_change_mac(vf) &&
2923	!is_multicast_ether_addr(addr) &&
2924	!ether_addr_equal(addr1: addr, addr2: vf->default_lan_addr.addr)) {
2925	dev_err(&pf->pdev->dev,
2926	"VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
2927	return -EPERM;
2928	}
2929
2930	/*count filters that really will be added*/
2931	f = i40e_find_mac(vsi, macaddr: addr);
2932	if (!f)
2933	++mac2add_cnt;
2934	}
2935
2936	/* If this VF is not privileged, then we can't add more than a limited
2937	* number of addresses. Check to make sure that the additions do not
2938	* push us over the limit.
2939	*/
2940	if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2941	if ((i40e_count_filters(vsi) + mac2add_cnt) >
2942	I40E_VC_MAX_MAC_ADDR_PER_VF) {
2943	dev_err(&pf->pdev->dev,
2944	"Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n");
2945	return -EPERM;
2946	}
2947	/* If this VF is trusted, it can use more resources than untrusted.
2948	* However to ensure that every trusted VF has appropriate number of
2949	* resources, divide whole pool of resources per port and then across
2950	* all VFs.
2951	*/
2952	} else {
2953	if ((i40e_count_filters(vsi) + mac2add_cnt) >
2954	I40E_VC_MAX_MACVLAN_PER_TRUSTED_VF(pf->num_alloc_vfs,
2955	hw->num_ports)) {
2956	dev_err(&pf->pdev->dev,
2957	"Cannot add more MAC addresses, trusted VF exhausted it's resources\n");
2958	return -EPERM;
2959	}
2960	}
2961	return 0;
2962	}
2963
2964	/**
2965	* i40e_vc_ether_addr_type - get type of virtchnl_ether_addr
2966	* @vc_ether_addr: used to extract the type
2967	**/
2968	static u8
2969	i40e_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr)
2970	{
2971	return vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK;
2972	}
2973
2974	/**
2975	* i40e_is_vc_addr_legacy
2976	* @vc_ether_addr: VIRTCHNL structure that contains MAC and type
2977	*
2978	* check if the MAC address is from an older VF
2979	**/
2980	static bool
2981	i40e_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr)
2982	{
2983	return i40e_vc_ether_addr_type(vc_ether_addr) ==
2984	VIRTCHNL_ETHER_ADDR_LEGACY;
2985	}
2986
2987	/**
2988	* i40e_is_vc_addr_primary
2989	* @vc_ether_addr: VIRTCHNL structure that contains MAC and type
2990	*
2991	* check if the MAC address is the VF's primary MAC
2992	* This function should only be called when the MAC address in
2993	* virtchnl_ether_addr is a valid unicast MAC
2994	**/
2995	static bool
2996	i40e_is_vc_addr_primary(struct virtchnl_ether_addr *vc_ether_addr)
2997	{
2998	return i40e_vc_ether_addr_type(vc_ether_addr) ==
2999	VIRTCHNL_ETHER_ADDR_PRIMARY;
3000	}
3001
3002	/**
3003	* i40e_update_vf_mac_addr
3004	* @vf: VF to update
3005	* @vc_ether_addr: structure from VIRTCHNL with MAC to add
3006	*
3007	* update the VF's cached hardware MAC if allowed
3008	**/
3009	static void
3010	i40e_update_vf_mac_addr(struct i40e_vf *vf,
3011	struct virtchnl_ether_addr *vc_ether_addr)
3012	{
3013	u8 *mac_addr = vc_ether_addr->addr;
3014
3015	if (!is_valid_ether_addr(addr: mac_addr))
3016	return;
3017
3018	/* If request to add MAC filter is a primary request update its default
3019	* MAC address with the requested one. If it is a legacy request then
3020	* check if current default is empty if so update the default MAC
3021	*/
3022	if (i40e_is_vc_addr_primary(vc_ether_addr)) {
3023	ether_addr_copy(dst: vf->default_lan_addr.addr, src: mac_addr);
3024	} else if (i40e_is_vc_addr_legacy(vc_ether_addr)) {
3025	if (is_zero_ether_addr(addr: vf->default_lan_addr.addr))
3026	ether_addr_copy(dst: vf->default_lan_addr.addr, src: mac_addr);
3027	}
3028	}
3029
3030	/**
3031	* i40e_vc_add_mac_addr_msg
3032	* @vf: pointer to the VF info
3033	* @msg: pointer to the msg buffer
3034	*
3035	* add guest mac address filter
3036	**/
3037	static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
3038	{
3039	struct virtchnl_ether_addr_list *al =
3040	(struct virtchnl_ether_addr_list *)msg;
3041	struct i40e_pf *pf = vf->pf;
3042	struct i40e_vsi *vsi = NULL;
3043	int ret = 0;
3044	int i;
3045
3046	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE) ||
3047	!i40e_vc_isvalid_vsi_id(vf, vsi_id: al->vsi_id)) {
3048	ret = -EINVAL;
3049	goto error_param;
3050	}
3051
3052	vsi = pf->vsi[vf->lan_vsi_idx];
3053
3054	/* Lock once, because all function inside for loop accesses VSI's
3055	* MAC filter list which needs to be protected using same lock.
3056	*/
3057	spin_lock_bh(lock: &vsi->mac_filter_hash_lock);
3058
3059	ret = i40e_check_vf_permission(vf, al);
3060	if (ret) {
3061	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
3062	goto error_param;
3063	}
3064
3065	/* add new addresses to the list */
3066	for (i = 0; i < al->num_elements; i++) {
3067	struct i40e_mac_filter *f;
3068
3069	f = i40e_find_mac(vsi, macaddr: al->list[i].addr);
3070	if (!f) {
3071	f = i40e_add_mac_filter(vsi, macaddr: al->list[i].addr);
3072
3073	if (!f) {
3074	dev_err(&pf->pdev->dev,
3075	"Unable to add MAC filter %pM for VF %d\n",
3076	al->list[i].addr, vf->vf_id);
3077	ret = -EINVAL;
3078	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
3079	goto error_param;
3080	}
3081	}
3082	i40e_update_vf_mac_addr(vf, vc_ether_addr: &al->list[i]);
3083	}
3084	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
3085
3086	/* program the updated filter list */
3087	ret = i40e_sync_vsi_filters(vsi);
3088	if (ret)
3089	dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
3090	vf->vf_id, ret);
3091
3092	error_param:
3093	/* send the response to the VF */
3094	return i40e_vc_send_msg_to_vf(vf, v_opcode: VIRTCHNL_OP_ADD_ETH_ADDR,
3095	v_retval: ret, NULL, msglen: 0);
3096	}
3097
3098	/**
3099	* i40e_vc_del_mac_addr_msg
3100	* @vf: pointer to the VF info
3101	* @msg: pointer to the msg buffer
3102	*
3103	* remove guest mac address filter
3104	**/
3105	static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
3106	{
3107	struct virtchnl_ether_addr_list *al =
3108	(struct virtchnl_ether_addr_list *)msg;
3109	bool was_unimac_deleted = false;
3110	struct i40e_pf *pf = vf->pf;
3111	struct i40e_vsi *vsi = NULL;
3112	int ret = 0;
3113	int i;
3114
3115	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE) ||
3116	!i40e_vc_isvalid_vsi_id(vf, vsi_id: al->vsi_id)) {
3117	ret = -EINVAL;
3118	goto error_param;
3119	}
3120
3121	for (i = 0; i < al->num_elements; i++) {
3122	if (is_broadcast_ether_addr(addr: al->list[i].addr) ||
3123	is_zero_ether_addr(addr: al->list[i].addr)) {
3124	dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
3125	al->list[i].addr, vf->vf_id);
3126	ret = -EINVAL;
3127	goto error_param;
3128	}
3129	}
3130	vsi = pf->vsi[vf->lan_vsi_idx];
3131
3132	spin_lock_bh(lock: &vsi->mac_filter_hash_lock);
3133	/* delete addresses from the list */
3134	for (i = 0; i < al->num_elements; i++) {
3135	const u8 *addr = al->list[i].addr;
3136
3137	/* Allow to delete VF primary MAC only if it was not set
3138	* administratively by PF or if VF is trusted.
3139	*/
3140	if (ether_addr_equal(addr1: addr, addr2: vf->default_lan_addr.addr)) {
3141	if (i40e_can_vf_change_mac(vf))
3142	was_unimac_deleted = true;
3143	else
3144	continue;
3145	}
3146
3147	if (i40e_del_mac_filter(vsi, macaddr: al->list[i].addr)) {
3148	ret = -EINVAL;
3149	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
3150	goto error_param;
3151	}
3152	}
3153
3154	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
3155
3156	if (was_unimac_deleted)
3157	eth_zero_addr(addr: vf->default_lan_addr.addr);
3158
3159	/* program the updated filter list */
3160	ret = i40e_sync_vsi_filters(vsi);
3161	if (ret)
3162	dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
3163	vf->vf_id, ret);
3164
3165	if (vf->trusted && was_unimac_deleted) {
3166	struct i40e_mac_filter *f;
3167	struct hlist_node *h;
3168	u8 *macaddr = NULL;
3169	int bkt;
3170
3171	/* set last unicast mac address as default */
3172	spin_lock_bh(lock: &vsi->mac_filter_hash_lock);
3173	hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) {
3174	if (is_valid_ether_addr(addr: f->macaddr))
3175	macaddr = f->macaddr;
3176	}
3177	if (macaddr)
3178	ether_addr_copy(dst: vf->default_lan_addr.addr, src: macaddr);
3179	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
3180	}
3181	error_param:
3182	/* send the response to the VF */
3183	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_DEL_ETH_ADDR, retval: ret);
3184	}
3185
3186	/**
3187	* i40e_vc_add_vlan_msg
3188	* @vf: pointer to the VF info
3189	* @msg: pointer to the msg buffer
3190	*
3191	* program guest vlan id
3192	**/
3193	static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg)
3194	{
3195	struct virtchnl_vlan_filter_list *vfl =
3196	(struct virtchnl_vlan_filter_list *)msg;
3197	struct i40e_pf *pf = vf->pf;
3198	struct i40e_vsi *vsi = NULL;
3199	int aq_ret = 0;
3200	int i;
3201
3202	if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
3203	!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3204	dev_err(&pf->pdev->dev,
3205	"VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
3206	goto error_param;
3207	}
3208	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3209	!i40e_vc_isvalid_vsi_id(vf, vsi_id: vfl->vsi_id)) {
3210	aq_ret = -EINVAL;
3211	goto error_param;
3212	}
3213
3214	for (i = 0; i < vfl->num_elements; i++) {
3215	if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
3216	aq_ret = -EINVAL;
3217	dev_err(&pf->pdev->dev,
3218	"invalid VF VLAN id %d\n", vfl->vlan_id[i]);
3219	goto error_param;
3220	}
3221	}
3222	vsi = pf->vsi[vf->lan_vsi_idx];
3223	if (vsi->info.pvid) {
3224	aq_ret = -EINVAL;
3225	goto error_param;
3226	}
3227
3228	i40e_vlan_stripping_enable(vsi);
3229	for (i = 0; i < vfl->num_elements; i++) {
3230	/* add new VLAN filter */
3231	int ret = i40e_vsi_add_vlan(vsi, vid: vfl->vlan_id[i]);
3232	if (!ret)
3233	vf->num_vlan++;
3234
3235	if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
3236	i40e_aq_set_vsi_uc_promisc_on_vlan(hw: &pf->hw, seid: vsi->seid,
3237	enable: true,
3238	vid: vfl->vlan_id[i],
3239	NULL);
3240	if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
3241	i40e_aq_set_vsi_mc_promisc_on_vlan(hw: &pf->hw, seid: vsi->seid,
3242	enable: true,
3243	vid: vfl->vlan_id[i],
3244	NULL);
3245
3246	if (ret)
3247	dev_err(&pf->pdev->dev,
3248	"Unable to add VLAN filter %d for VF %d, error %d\n",
3249	vfl->vlan_id[i], vf->vf_id, ret);
3250	}
3251
3252	error_param:
3253	/* send the response to the VF */
3254	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_ADD_VLAN, retval: aq_ret);
3255	}
3256
3257	/**
3258	* i40e_vc_remove_vlan_msg
3259	* @vf: pointer to the VF info
3260	* @msg: pointer to the msg buffer
3261	*
3262	* remove programmed guest vlan id
3263	**/
3264	static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg)
3265	{
3266	struct virtchnl_vlan_filter_list *vfl =
3267	(struct virtchnl_vlan_filter_list *)msg;
3268	struct i40e_pf *pf = vf->pf;
3269	struct i40e_vsi *vsi = NULL;
3270	int aq_ret = 0;
3271	int i;
3272
3273	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE) ||
3274	!i40e_vc_isvalid_vsi_id(vf, vsi_id: vfl->vsi_id)) {
3275	aq_ret = -EINVAL;
3276	goto error_param;
3277	}
3278
3279	for (i = 0; i < vfl->num_elements; i++) {
3280	if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
3281	aq_ret = -EINVAL;
3282	goto error_param;
3283	}
3284	}
3285
3286	vsi = pf->vsi[vf->lan_vsi_idx];
3287	if (vsi->info.pvid) {
3288	if (vfl->num_elements > 1 || vfl->vlan_id[0])
3289	aq_ret = -EINVAL;
3290	goto error_param;
3291	}
3292
3293	for (i = 0; i < vfl->num_elements; i++) {
3294	i40e_vsi_kill_vlan(vsi, vid: vfl->vlan_id[i]);
3295	vf->num_vlan--;
3296
3297	if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
3298	i40e_aq_set_vsi_uc_promisc_on_vlan(hw: &pf->hw, seid: vsi->seid,
3299	enable: false,
3300	vid: vfl->vlan_id[i],
3301	NULL);
3302	if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
3303	i40e_aq_set_vsi_mc_promisc_on_vlan(hw: &pf->hw, seid: vsi->seid,
3304	enable: false,
3305	vid: vfl->vlan_id[i],
3306	NULL);
3307	}
3308
3309	error_param:
3310	/* send the response to the VF */
3311	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_DEL_VLAN, retval: aq_ret);
3312	}
3313
3314	/**
3315	* i40e_vc_rdma_msg
3316	* @vf: pointer to the VF info
3317	* @msg: pointer to the msg buffer
3318	* @msglen: msg length
3319	*
3320	* called from the VF for the iwarp msgs
3321	**/
3322	static int i40e_vc_rdma_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
3323	{
3324	struct i40e_pf *pf = vf->pf;
3325	int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
3326	int aq_ret = 0;
3327
3328	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3329	!test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) {
3330	aq_ret = -EINVAL;
3331	goto error_param;
3332	}
3333
3334	i40e_notify_client_of_vf_msg(vsi: pf->vsi[pf->lan_vsi], vf_id: abs_vf_id,
3335	msg, len: msglen);
3336
3337	error_param:
3338	/* send the response to the VF */
3339	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_RDMA,
3340	retval: aq_ret);
3341	}
3342
3343	/**
3344	* i40e_vc_rdma_qvmap_msg
3345	* @vf: pointer to the VF info
3346	* @msg: pointer to the msg buffer
3347	* @config: config qvmap or release it
3348	*
3349	* called from the VF for the iwarp msgs
3350	**/
3351	static int i40e_vc_rdma_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config)
3352	{
3353	struct virtchnl_rdma_qvlist_info *qvlist_info =
3354	(struct virtchnl_rdma_qvlist_info *)msg;
3355	int aq_ret = 0;
3356
3357	if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3358	!test_bit(I40E_VF_STATE_RDMAENA, &vf->vf_states)) {
3359	aq_ret = -EINVAL;
3360	goto error_param;
3361	}
3362
3363	if (config) {
3364	if (i40e_config_rdma_qvlist(vf, qvlist_info))
3365	aq_ret = -EINVAL;
3366	} else {
3367	i40e_release_rdma_qvlist(vf);
3368	}
3369
3370	error_param:
3371	/* send the response to the VF */
3372	return i40e_vc_send_resp_to_vf(vf,
3373	opcode: config ? VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP :
3374	VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP,
3375	retval: aq_ret);
3376	}
3377
3378	/**
3379	* i40e_vc_config_rss_key
3380	* @vf: pointer to the VF info
3381	* @msg: pointer to the msg buffer
3382	*
3383	* Configure the VF's RSS key
3384	**/
3385	static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg)
3386	{
3387	struct virtchnl_rss_key *vrk =
3388	(struct virtchnl_rss_key *)msg;
3389	struct i40e_pf *pf = vf->pf;
3390	struct i40e_vsi *vsi = NULL;
3391	int aq_ret = 0;
3392
3393	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE) ||
3394	!i40e_vc_isvalid_vsi_id(vf, vsi_id: vrk->vsi_id) ||
3395	vrk->key_len != I40E_HKEY_ARRAY_SIZE) {
3396	aq_ret = -EINVAL;
3397	goto err;
3398	}
3399
3400	vsi = pf->vsi[vf->lan_vsi_idx];
3401	aq_ret = i40e_config_rss(vsi, seed: vrk->key, NULL, lut_size: 0);
3402	err:
3403	/* send the response to the VF */
3404	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_CONFIG_RSS_KEY,
3405	retval: aq_ret);
3406	}
3407
3408	/**
3409	* i40e_vc_config_rss_lut
3410	* @vf: pointer to the VF info
3411	* @msg: pointer to the msg buffer
3412	*
3413	* Configure the VF's RSS LUT
3414	**/
3415	static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg)
3416	{
3417	struct virtchnl_rss_lut *vrl =
3418	(struct virtchnl_rss_lut *)msg;
3419	struct i40e_pf *pf = vf->pf;
3420	struct i40e_vsi *vsi = NULL;
3421	int aq_ret = 0;
3422	u16 i;
3423
3424	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE) ||
3425	!i40e_vc_isvalid_vsi_id(vf, vsi_id: vrl->vsi_id) ||
3426	vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) {
3427	aq_ret = -EINVAL;
3428	goto err;
3429	}
3430
3431	for (i = 0; i < vrl->lut_entries; i++)
3432	if (vrl->lut[i] >= vf->num_queue_pairs) {
3433	aq_ret = -EINVAL;
3434	goto err;
3435	}
3436
3437	vsi = pf->vsi[vf->lan_vsi_idx];
3438	aq_ret = i40e_config_rss(vsi, NULL, lut: vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
3439	/* send the response to the VF */
3440	err:
3441	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_CONFIG_RSS_LUT,
3442	retval: aq_ret);
3443	}
3444
3445	/**
3446	* i40e_vc_get_rss_hena
3447	* @vf: pointer to the VF info
3448	* @msg: pointer to the msg buffer
3449	*
3450	* Return the RSS HENA bits allowed by the hardware
3451	**/
3452	static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg)
3453	{
3454	struct virtchnl_rss_hena *vrh = NULL;
3455	struct i40e_pf *pf = vf->pf;
3456	int aq_ret = 0;
3457	int len = 0;
3458
3459	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
3460	aq_ret = -EINVAL;
3461	goto err;
3462	}
3463	len = sizeof(struct virtchnl_rss_hena);
3464
3465	vrh = kzalloc(size: len, GFP_KERNEL);
3466	if (!vrh) {
3467	aq_ret = -ENOMEM;
3468	len = 0;
3469	goto err;
3470	}
3471	vrh->hena = i40e_pf_get_default_rss_hena(pf);
3472	err:
3473	/* send the response back to the VF */
3474	aq_ret = i40e_vc_send_msg_to_vf(vf, v_opcode: VIRTCHNL_OP_GET_RSS_HENA_CAPS,
3475	v_retval: aq_ret, msg: (u8 *)vrh, msglen: len);
3476	kfree(objp: vrh);
3477	return aq_ret;
3478	}
3479
3480	/**
3481	* i40e_vc_set_rss_hena
3482	* @vf: pointer to the VF info
3483	* @msg: pointer to the msg buffer
3484	*
3485	* Set the RSS HENA bits for the VF
3486	**/
3487	static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg)
3488	{
3489	struct virtchnl_rss_hena *vrh =
3490	(struct virtchnl_rss_hena *)msg;
3491	struct i40e_pf *pf = vf->pf;
3492	struct i40e_hw *hw = &pf->hw;
3493	int aq_ret = 0;
3494
3495	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
3496	aq_ret = -EINVAL;
3497	goto err;
3498	}
3499	i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), reg_val: (u32)vrh->hena);
3500	i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
3501	reg_val: (u32)(vrh->hena >> 32));
3502
3503	/* send the response to the VF */
3504	err:
3505	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_SET_RSS_HENA, retval: aq_ret);
3506	}
3507
3508	/**
3509	* i40e_vc_enable_vlan_stripping
3510	* @vf: pointer to the VF info
3511	* @msg: pointer to the msg buffer
3512	*
3513	* Enable vlan header stripping for the VF
3514	**/
3515	static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3516	{
3517	struct i40e_vsi *vsi;
3518	int aq_ret = 0;
3519
3520	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
3521	aq_ret = -EINVAL;
3522	goto err;
3523	}
3524
3525	vsi = vf->pf->vsi[vf->lan_vsi_idx];
3526	i40e_vlan_stripping_enable(vsi);
3527
3528	/* send the response to the VF */
3529	err:
3530	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
3531	retval: aq_ret);
3532	}
3533
3534	/**
3535	* i40e_vc_disable_vlan_stripping
3536	* @vf: pointer to the VF info
3537	* @msg: pointer to the msg buffer
3538	*
3539	* Disable vlan header stripping for the VF
3540	**/
3541	static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3542	{
3543	struct i40e_vsi *vsi;
3544	int aq_ret = 0;
3545
3546	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
3547	aq_ret = -EINVAL;
3548	goto err;
3549	}
3550
3551	vsi = vf->pf->vsi[vf->lan_vsi_idx];
3552	i40e_vlan_stripping_disable(vsi);
3553
3554	/* send the response to the VF */
3555	err:
3556	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
3557	retval: aq_ret);
3558	}
3559
3560	/**
3561	* i40e_validate_cloud_filter
3562	* @vf: pointer to VF structure
3563	* @tc_filter: pointer to filter requested
3564	*
3565	* This function validates cloud filter programmed as TC filter for ADq
3566	**/
3567	static int i40e_validate_cloud_filter(struct i40e_vf *vf,
3568	struct virtchnl_filter *tc_filter)
3569	{
3570	struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec;
3571	struct virtchnl_l4_spec data = tc_filter->data.tcp_spec;
3572	struct i40e_pf *pf = vf->pf;
3573	struct i40e_vsi *vsi = NULL;
3574	struct i40e_mac_filter *f;
3575	struct hlist_node *h;
3576	bool found = false;
3577	int bkt;
3578
3579	if (tc_filter->action != VIRTCHNL_ACTION_TC_REDIRECT) {
3580	dev_info(&pf->pdev->dev,
3581	"VF %d: ADQ doesn't support this action (%d)\n",
3582	vf->vf_id, tc_filter->action);
3583	goto err;
3584	}
3585
3586	/* action_meta is TC number here to which the filter is applied */
3587	if (!tc_filter->action_meta ||
3588	tc_filter->action_meta > vf->num_tc) {
3589	dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n",
3590	vf->vf_id, tc_filter->action_meta);
3591	goto err;
3592	}
3593
3594	/* Check filter if it's programmed for advanced mode or basic mode.
3595	* There are two ADq modes (for VF only),
3596	* 1. Basic mode: intended to allow as many filter options as possible
3597	* to be added to a VF in Non-trusted mode. Main goal is
3598	* to add filters to its own MAC and VLAN id.
3599	* 2. Advanced mode: is for allowing filters to be applied other than
3600	* its own MAC or VLAN. This mode requires the VF to be
3601	* Trusted.
3602	*/
3603	if (mask.dst_mac[0] && !mask.dst_ip[0]) {
3604	vsi = pf->vsi[vf->lan_vsi_idx];
3605	f = i40e_find_mac(vsi, macaddr: data.dst_mac);
3606
3607	if (!f) {
3608	dev_info(&pf->pdev->dev,
3609	"Destination MAC %pM doesn't belong to VF %d\n",
3610	data.dst_mac, vf->vf_id);
3611	goto err;
3612	}
3613
3614	if (mask.vlan_id) {
3615	hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f,
3616	hlist) {
3617	if (f->vlan == ntohs(data.vlan_id)) {
3618	found = true;
3619	break;
3620	}
3621	}
3622	if (!found) {
3623	dev_info(&pf->pdev->dev,
3624	"VF %d doesn't have any VLAN id %u\n",
3625	vf->vf_id, ntohs(data.vlan_id));
3626	goto err;
3627	}
3628	}
3629	} else {
3630	/* Check if VF is trusted */
3631	if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3632	dev_err(&pf->pdev->dev,
3633	"VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n",
3634	vf->vf_id);
3635	return -EIO;
3636	}
3637	}
3638
3639	if (mask.dst_mac[0] & data.dst_mac[0]) {
3640	if (is_broadcast_ether_addr(addr: data.dst_mac) ||
3641	is_zero_ether_addr(addr: data.dst_mac)) {
3642	dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n",
3643	vf->vf_id, data.dst_mac);
3644	goto err;
3645	}
3646	}
3647
3648	if (mask.src_mac[0] & data.src_mac[0]) {
3649	if (is_broadcast_ether_addr(addr: data.src_mac) ||
3650	is_zero_ether_addr(addr: data.src_mac)) {
3651	dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n",
3652	vf->vf_id, data.src_mac);
3653	goto err;
3654	}
3655	}
3656
3657	if (mask.dst_port & data.dst_port) {
3658	if (!data.dst_port) {
3659	dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n",
3660	vf->vf_id);
3661	goto err;
3662	}
3663	}
3664
3665	if (mask.src_port & data.src_port) {
3666	if (!data.src_port) {
3667	dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n",
3668	vf->vf_id);
3669	goto err;
3670	}
3671	}
3672
3673	if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW &&
3674	tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) {
3675	dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n",
3676	vf->vf_id);
3677	goto err;
3678	}
3679
3680	if (mask.vlan_id & data.vlan_id) {
3681	if (ntohs(data.vlan_id) > I40E_MAX_VLANID) {
3682	dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n",
3683	vf->vf_id);
3684	goto err;
3685	}
3686	}
3687
3688	return 0;
3689	err:
3690	return -EIO;
3691	}
3692
3693	/**
3694	* i40e_find_vsi_from_seid - searches for the vsi with the given seid
3695	* @vf: pointer to the VF info
3696	* @seid: seid of the vsi it is searching for
3697	**/
3698	static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid)
3699	{
3700	struct i40e_pf *pf = vf->pf;
3701	struct i40e_vsi *vsi = NULL;
3702	int i;
3703
3704	for (i = 0; i < vf->num_tc ; i++) {
3705	vsi = i40e_find_vsi_from_id(pf, id: vf->ch[i].vsi_id);
3706	if (vsi && vsi->seid == seid)
3707	return vsi;
3708	}
3709	return NULL;
3710	}
3711
3712	/**
3713	* i40e_del_all_cloud_filters
3714	* @vf: pointer to the VF info
3715	*
3716	* This function deletes all cloud filters
3717	**/
3718	static void i40e_del_all_cloud_filters(struct i40e_vf *vf)
3719	{
3720	struct i40e_cloud_filter *cfilter = NULL;
3721	struct i40e_pf *pf = vf->pf;
3722	struct i40e_vsi *vsi = NULL;
3723	struct hlist_node *node;
3724	int ret;
3725
3726	hlist_for_each_entry_safe(cfilter, node,
3727	&vf->cloud_filter_list, cloud_node) {
3728	vsi = i40e_find_vsi_from_seid(vf, seid: cfilter->seid);
3729
3730	if (!vsi) {
3731	dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n",
3732	vf->vf_id, cfilter->seid);
3733	continue;
3734	}
3735
3736	if (cfilter->dst_port)
3737	ret = i40e_add_del_cloud_filter_big_buf(vsi, filter: cfilter,
3738	add: false);
3739	else
3740	ret = i40e_add_del_cloud_filter(vsi, filter: cfilter, add: false);
3741	if (ret)
3742	dev_err(&pf->pdev->dev,
3743	"VF %d: Failed to delete cloud filter, err %pe aq_err %s\n",
3744	vf->vf_id, ERR_PTR(ret),
3745	i40e_aq_str(&pf->hw,
3746	pf->hw.aq.asq_last_status));
3747
3748	hlist_del(n: &cfilter->cloud_node);
3749	kfree(objp: cfilter);
3750	vf->num_cloud_filters--;
3751	}
3752	}
3753
3754	/**
3755	* i40e_vc_del_cloud_filter
3756	* @vf: pointer to the VF info
3757	* @msg: pointer to the msg buffer
3758	*
3759	* This function deletes a cloud filter programmed as TC filter for ADq
3760	**/
3761	static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg)
3762	{
3763	struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3764	struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3765	struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3766	struct i40e_cloud_filter cfilter, *cf = NULL;
3767	struct i40e_pf *pf = vf->pf;
3768	struct i40e_vsi *vsi = NULL;
3769	struct hlist_node *node;
3770	int aq_ret = 0;
3771	int i, ret;
3772
3773	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
3774	aq_ret = -EINVAL;
3775	goto err;
3776	}
3777
3778	if (!vf->adq_enabled) {
3779	dev_info(&pf->pdev->dev,
3780	"VF %d: ADq not enabled, can't apply cloud filter\n",
3781	vf->vf_id);
3782	aq_ret = -EINVAL;
3783	goto err;
3784	}
3785
3786	if (i40e_validate_cloud_filter(vf, tc_filter: vcf)) {
3787	dev_info(&pf->pdev->dev,
3788	"VF %d: Invalid input, can't apply cloud filter\n",
3789	vf->vf_id);
3790	aq_ret = -EINVAL;
3791	goto err;
3792	}
3793
3794	memset(&cfilter, 0, sizeof(cfilter));
3795	/* parse destination mac address */
3796	for (i = 0; i < ETH_ALEN; i++)
3797	cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3798
3799	/* parse source mac address */
3800	for (i = 0; i < ETH_ALEN; i++)
3801	cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3802
3803	cfilter.vlan_id = mask.vlan_id & tcf.vlan_id;
3804	cfilter.dst_port = mask.dst_port & tcf.dst_port;
3805	cfilter.src_port = mask.src_port & tcf.src_port;
3806
3807	switch (vcf->flow_type) {
3808	case VIRTCHNL_TCP_V4_FLOW:
3809	cfilter.n_proto = ETH_P_IP;
3810	if (mask.dst_ip[0] & tcf.dst_ip[0])
3811	memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip,
3812	ARRAY_SIZE(tcf.dst_ip));
3813	else if (mask.src_ip[0] & tcf.dst_ip[0])
3814	memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip,
3815	ARRAY_SIZE(tcf.dst_ip));
3816	break;
3817	case VIRTCHNL_TCP_V6_FLOW:
3818	cfilter.n_proto = ETH_P_IPV6;
3819	if (mask.dst_ip[3] & tcf.dst_ip[3])
3820	memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip,
3821	sizeof(cfilter.ip.v6.dst_ip6));
3822	if (mask.src_ip[3] & tcf.src_ip[3])
3823	memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip,
3824	sizeof(cfilter.ip.v6.src_ip6));
3825	break;
3826	default:
3827	/* TC filter can be configured based on different combinations
3828	* and in this case IP is not a part of filter config
3829	*/
3830	dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3831	vf->vf_id);
3832	}
3833
3834	/* get the vsi to which the tc belongs to */
3835	vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3836	cfilter.seid = vsi->seid;
3837	cfilter.flags = vcf->field_flags;
3838
3839	/* Deleting TC filter */
3840	if (tcf.dst_port)
3841	ret = i40e_add_del_cloud_filter_big_buf(vsi, filter: &cfilter, add: false);
3842	else
3843	ret = i40e_add_del_cloud_filter(vsi, filter: &cfilter, add: false);
3844	if (ret) {
3845	dev_err(&pf->pdev->dev,
3846	"VF %d: Failed to delete cloud filter, err %pe aq_err %s\n",
3847	vf->vf_id, ERR_PTR(ret),
3848	i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3849	goto err;
3850	}
3851
3852	hlist_for_each_entry_safe(cf, node,
3853	&vf->cloud_filter_list, cloud_node) {
3854	if (cf->seid != cfilter.seid)
3855	continue;
3856	if (mask.dst_port)
3857	if (cfilter.dst_port != cf->dst_port)
3858	continue;
3859	if (mask.dst_mac[0])
3860	if (!ether_addr_equal(addr1: cf->src_mac, addr2: cfilter.src_mac))
3861	continue;
3862	/* for ipv4 data to be valid, only first byte of mask is set */
3863	if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0])
3864	if (memcmp(p: &cfilter.ip.v4.dst_ip, q: &cf->ip.v4.dst_ip,
3865	ARRAY_SIZE(tcf.dst_ip)))
3866	continue;
3867	/* for ipv6, mask is set for all sixteen bytes (4 words) */
3868	if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3])
3869	if (memcmp(p: &cfilter.ip.v6.dst_ip6, q: &cf->ip.v6.dst_ip6,
3870	size: sizeof(cfilter.ip.v6.src_ip6)))
3871	continue;
3872	if (mask.vlan_id)
3873	if (cfilter.vlan_id != cf->vlan_id)
3874	continue;
3875
3876	hlist_del(n: &cf->cloud_node);
3877	kfree(objp: cf);
3878	vf->num_cloud_filters--;
3879	}
3880
3881	err:
3882	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_DEL_CLOUD_FILTER,
3883	retval: aq_ret);
3884	}
3885
3886	/**
3887	* i40e_vc_add_cloud_filter
3888	* @vf: pointer to the VF info
3889	* @msg: pointer to the msg buffer
3890	*
3891	* This function adds a cloud filter programmed as TC filter for ADq
3892	**/
3893	static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
3894	{
3895	struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3896	struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3897	struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3898	struct i40e_cloud_filter *cfilter = NULL;
3899	struct i40e_pf *pf = vf->pf;
3900	struct i40e_vsi *vsi = NULL;
3901	int aq_ret = 0;
3902	int i;
3903
3904	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
3905	aq_ret = -EINVAL;
3906	goto err_out;
3907	}
3908
3909	if (!vf->adq_enabled) {
3910	dev_info(&pf->pdev->dev,
3911	"VF %d: ADq is not enabled, can't apply cloud filter\n",
3912	vf->vf_id);
3913	aq_ret = -EINVAL;
3914	goto err_out;
3915	}
3916
3917	if (i40e_validate_cloud_filter(vf, tc_filter: vcf)) {
3918	dev_info(&pf->pdev->dev,
3919	"VF %d: Invalid input/s, can't apply cloud filter\n",
3920	vf->vf_id);
3921	aq_ret = -EINVAL;
3922	goto err_out;
3923	}
3924
3925	cfilter = kzalloc(size: sizeof(*cfilter), GFP_KERNEL);
3926	if (!cfilter) {
3927	aq_ret = -ENOMEM;
3928	goto err_out;
3929	}
3930
3931	/* parse destination mac address */
3932	for (i = 0; i < ETH_ALEN; i++)
3933	cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3934
3935	/* parse source mac address */
3936	for (i = 0; i < ETH_ALEN; i++)
3937	cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3938
3939	cfilter->vlan_id = mask.vlan_id & tcf.vlan_id;
3940	cfilter->dst_port = mask.dst_port & tcf.dst_port;
3941	cfilter->src_port = mask.src_port & tcf.src_port;
3942
3943	switch (vcf->flow_type) {
3944	case VIRTCHNL_TCP_V4_FLOW:
3945	cfilter->n_proto = ETH_P_IP;
3946	if (mask.dst_ip[0] & tcf.dst_ip[0])
3947	memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip,
3948	ARRAY_SIZE(tcf.dst_ip));
3949	else if (mask.src_ip[0] & tcf.dst_ip[0])
3950	memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip,
3951	ARRAY_SIZE(tcf.dst_ip));
3952	break;
3953	case VIRTCHNL_TCP_V6_FLOW:
3954	cfilter->n_proto = ETH_P_IPV6;
3955	if (mask.dst_ip[3] & tcf.dst_ip[3])
3956	memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip,
3957	sizeof(cfilter->ip.v6.dst_ip6));
3958	if (mask.src_ip[3] & tcf.src_ip[3])
3959	memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip,
3960	sizeof(cfilter->ip.v6.src_ip6));
3961	break;
3962	default:
3963	/* TC filter can be configured based on different combinations
3964	* and in this case IP is not a part of filter config
3965	*/
3966	dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3967	vf->vf_id);
3968	}
3969
3970	/* get the VSI to which the TC belongs to */
3971	vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3972	cfilter->seid = vsi->seid;
3973	cfilter->flags = vcf->field_flags;
3974
3975	/* Adding cloud filter programmed as TC filter */
3976	if (tcf.dst_port)
3977	aq_ret = i40e_add_del_cloud_filter_big_buf(vsi, filter: cfilter, add: true);
3978	else
3979	aq_ret = i40e_add_del_cloud_filter(vsi, filter: cfilter, add: true);
3980	if (aq_ret) {
3981	dev_err(&pf->pdev->dev,
3982	"VF %d: Failed to add cloud filter, err %pe aq_err %s\n",
3983	vf->vf_id, ERR_PTR(aq_ret),
3984	i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3985	goto err_free;
3986	}
3987
3988	INIT_HLIST_NODE(h: &cfilter->cloud_node);
3989	hlist_add_head(n: &cfilter->cloud_node, h: &vf->cloud_filter_list);
3990	/* release the pointer passing it to the collection */
3991	cfilter = NULL;
3992	vf->num_cloud_filters++;
3993	err_free:
3994	kfree(objp: cfilter);
3995	err_out:
3996	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_ADD_CLOUD_FILTER,
3997	retval: aq_ret);
3998	}
3999
4000	/**
4001	* i40e_vc_add_qch_msg: Add queue channel and enable ADq
4002	* @vf: pointer to the VF info
4003	* @msg: pointer to the msg buffer
4004	**/
4005	static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
4006	{
4007	struct virtchnl_tc_info *tci =
4008	(struct virtchnl_tc_info *)msg;
4009	struct i40e_pf *pf = vf->pf;
4010	struct i40e_link_status *ls = &pf->hw.phy.link_info;
4011	int i, adq_request_qps = 0;
4012	int aq_ret = 0;
4013	u64 speed = 0;
4014
4015	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
4016	aq_ret = -EINVAL;
4017	goto err;
4018	}
4019
4020	/* ADq cannot be applied if spoof check is ON */
4021	if (vf->spoofchk) {
4022	dev_err(&pf->pdev->dev,
4023	"Spoof check is ON, turn it OFF to enable ADq\n");
4024	aq_ret = -EINVAL;
4025	goto err;
4026	}
4027
4028	if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) {
4029	dev_err(&pf->pdev->dev,
4030	"VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n",
4031	vf->vf_id);
4032	aq_ret = -EINVAL;
4033	goto err;
4034	}
4035
4036	/* max number of traffic classes for VF currently capped at 4 */
4037	if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) {
4038	dev_err(&pf->pdev->dev,
4039	"VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n",
4040	vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI);
4041	aq_ret = -EINVAL;
4042	goto err;
4043	}
4044
4045	/* validate queues for each TC */
4046	for (i = 0; i < tci->num_tc; i++)
4047	if (!tci->list[i].count ||
4048	tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) {
4049	dev_err(&pf->pdev->dev,
4050	"VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n",
4051	vf->vf_id, i, tci->list[i].count,
4052	I40E_DEFAULT_QUEUES_PER_VF);
4053	aq_ret = -EINVAL;
4054	goto err;
4055	}
4056
4057	/* need Max VF queues but already have default number of queues */
4058	adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF;
4059
4060	if (pf->queues_left < adq_request_qps) {
4061	dev_err(&pf->pdev->dev,
4062	"No queues left to allocate to VF %d\n",
4063	vf->vf_id);
4064	aq_ret = -EINVAL;
4065	goto err;
4066	} else {
4067	/* we need to allocate max VF queues to enable ADq so as to
4068	* make sure ADq enabled VF always gets back queues when it
4069	* goes through a reset.
4070	*/
4071	vf->num_queue_pairs = I40E_MAX_VF_QUEUES;
4072	}
4073
4074	/* get link speed in MB to validate rate limit */
4075	speed = i40e_vc_link_speed2mbps(link_speed: ls->link_speed);
4076	if (speed == SPEED_UNKNOWN) {
4077	dev_err(&pf->pdev->dev,
4078	"Cannot detect link speed\n");
4079	aq_ret = -EINVAL;
4080	goto err;
4081	}
4082
4083	/* parse data from the queue channel info */
4084	vf->num_tc = tci->num_tc;
4085	for (i = 0; i < vf->num_tc; i++) {
4086	if (tci->list[i].max_tx_rate) {
4087	if (tci->list[i].max_tx_rate > speed) {
4088	dev_err(&pf->pdev->dev,
4089	"Invalid max tx rate %llu specified for VF %d.",
4090	tci->list[i].max_tx_rate,
4091	vf->vf_id);
4092	aq_ret = -EINVAL;
4093	goto err;
4094	} else {
4095	vf->ch[i].max_tx_rate =
4096	tci->list[i].max_tx_rate;
4097	}
4098	}
4099	vf->ch[i].num_qps = tci->list[i].count;
4100	}
4101
4102	/* set this flag only after making sure all inputs are sane */
4103	vf->adq_enabled = true;
4104
4105	/* reset the VF in order to allocate resources */
4106	i40e_vc_reset_vf(vf, notify_vf: true);
4107
4108	return 0;
4109
4110	/* send the response to the VF */
4111	err:
4112	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_ENABLE_CHANNELS,
4113	retval: aq_ret);
4114	}
4115
4116	/**
4117	* i40e_vc_del_qch_msg
4118	* @vf: pointer to the VF info
4119	* @msg: pointer to the msg buffer
4120	**/
4121	static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
4122	{
4123	struct i40e_pf *pf = vf->pf;
4124	int aq_ret = 0;
4125
4126	if (!i40e_sync_vf_state(vf, state: I40E_VF_STATE_ACTIVE)) {
4127	aq_ret = -EINVAL;
4128	goto err;
4129	}
4130
4131	if (vf->adq_enabled) {
4132	i40e_del_all_cloud_filters(vf);
4133	i40e_del_qch(vf);
4134	vf->adq_enabled = false;
4135	vf->num_tc = 0;
4136	dev_info(&pf->pdev->dev,
4137	"Deleting Queue Channels and cloud filters for ADq on VF %d\n",
4138	vf->vf_id);
4139	} else {
4140	dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n",
4141	vf->vf_id);
4142	aq_ret = -EINVAL;
4143	}
4144
4145	/* reset the VF in order to allocate resources */
4146	i40e_vc_reset_vf(vf, notify_vf: true);
4147
4148	return 0;
4149
4150	err:
4151	return i40e_vc_send_resp_to_vf(vf, opcode: VIRTCHNL_OP_DISABLE_CHANNELS,
4152	retval: aq_ret);
4153	}
4154
4155	/**
4156	* i40e_vc_process_vf_msg
4157	* @pf: pointer to the PF structure
4158	* @vf_id: source VF id
4159	* @v_opcode: operation code
4160	* @v_retval: unused return value code
4161	* @msg: pointer to the msg buffer
4162	* @msglen: msg length
4163	*
4164	* called from the common aeq/arq handler to
4165	* process request from VF
4166	**/
4167	int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
4168	u32 __always_unused v_retval, u8 *msg, u16 msglen)
4169	{
4170	struct i40e_hw *hw = &pf->hw;
4171	int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
4172	struct i40e_vf *vf;
4173	int ret;
4174
4175	pf->vf_aq_requests++;
4176	if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs)
4177	return -EINVAL;
4178	vf = &(pf->vf[local_vf_id]);
4179
4180	/* Check if VF is disabled. */
4181	if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states))
4182	return -EINVAL;
4183
4184	/* perform basic checks on the msg */
4185	ret = virtchnl_vc_validate_vf_msg(ver: &vf->vf_ver, v_opcode, msg, msglen);
4186
4187	if (ret) {
4188	i40e_vc_send_resp_to_vf(vf, opcode: v_opcode, retval: -EINVAL);
4189	dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
4190	local_vf_id, v_opcode, msglen);
4191	return ret;
4192	}
4193
4194	switch (v_opcode) {
4195	case VIRTCHNL_OP_VERSION:
4196	ret = i40e_vc_get_version_msg(vf, msg);
4197	break;
4198	case VIRTCHNL_OP_GET_VF_RESOURCES:
4199	ret = i40e_vc_get_vf_resources_msg(vf, msg);
4200	i40e_vc_notify_vf_link_state(vf);
4201	break;
4202	case VIRTCHNL_OP_RESET_VF:
4203	i40e_vc_reset_vf(vf, notify_vf: false);
4204	ret = 0;
4205	break;
4206	case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
4207	ret = i40e_vc_config_promiscuous_mode_msg(vf, msg);
4208	break;
4209	case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
4210	ret = i40e_vc_config_queues_msg(vf, msg);
4211	break;
4212	case VIRTCHNL_OP_CONFIG_IRQ_MAP:
4213	ret = i40e_vc_config_irq_map_msg(vf, msg);
4214	break;
4215	case VIRTCHNL_OP_ENABLE_QUEUES:
4216	ret = i40e_vc_enable_queues_msg(vf, msg);
4217	i40e_vc_notify_vf_link_state(vf);
4218	break;
4219	case VIRTCHNL_OP_DISABLE_QUEUES:
4220	ret = i40e_vc_disable_queues_msg(vf, msg);
4221	break;
4222	case VIRTCHNL_OP_ADD_ETH_ADDR:
4223	ret = i40e_vc_add_mac_addr_msg(vf, msg);
4224	break;
4225	case VIRTCHNL_OP_DEL_ETH_ADDR:
4226	ret = i40e_vc_del_mac_addr_msg(vf, msg);
4227	break;
4228	case VIRTCHNL_OP_ADD_VLAN:
4229	ret = i40e_vc_add_vlan_msg(vf, msg);
4230	break;
4231	case VIRTCHNL_OP_DEL_VLAN:
4232	ret = i40e_vc_remove_vlan_msg(vf, msg);
4233	break;
4234	case VIRTCHNL_OP_GET_STATS:
4235	ret = i40e_vc_get_stats_msg(vf, msg);
4236	break;
4237	case VIRTCHNL_OP_RDMA:
4238	ret = i40e_vc_rdma_msg(vf, msg, msglen);
4239	break;
4240	case VIRTCHNL_OP_CONFIG_RDMA_IRQ_MAP:
4241	ret = i40e_vc_rdma_qvmap_msg(vf, msg, config: true);
4242	break;
4243	case VIRTCHNL_OP_RELEASE_RDMA_IRQ_MAP:
4244	ret = i40e_vc_rdma_qvmap_msg(vf, msg, config: false);
4245	break;
4246	case VIRTCHNL_OP_CONFIG_RSS_KEY:
4247	ret = i40e_vc_config_rss_key(vf, msg);
4248	break;
4249	case VIRTCHNL_OP_CONFIG_RSS_LUT:
4250	ret = i40e_vc_config_rss_lut(vf, msg);
4251	break;
4252	case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
4253	ret = i40e_vc_get_rss_hena(vf, msg);
4254	break;
4255	case VIRTCHNL_OP_SET_RSS_HENA:
4256	ret = i40e_vc_set_rss_hena(vf, msg);
4257	break;
4258	case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
4259	ret = i40e_vc_enable_vlan_stripping(vf, msg);
4260	break;
4261	case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
4262	ret = i40e_vc_disable_vlan_stripping(vf, msg);
4263	break;
4264	case VIRTCHNL_OP_REQUEST_QUEUES:
4265	ret = i40e_vc_request_queues_msg(vf, msg);
4266	break;
4267	case VIRTCHNL_OP_ENABLE_CHANNELS:
4268	ret = i40e_vc_add_qch_msg(vf, msg);
4269	break;
4270	case VIRTCHNL_OP_DISABLE_CHANNELS:
4271	ret = i40e_vc_del_qch_msg(vf, msg);
4272	break;
4273	case VIRTCHNL_OP_ADD_CLOUD_FILTER:
4274	ret = i40e_vc_add_cloud_filter(vf, msg);
4275	break;
4276	case VIRTCHNL_OP_DEL_CLOUD_FILTER:
4277	ret = i40e_vc_del_cloud_filter(vf, msg);
4278	break;
4279	case VIRTCHNL_OP_UNKNOWN:
4280	default:
4281	dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
4282	v_opcode, local_vf_id);
4283	ret = i40e_vc_send_resp_to_vf(vf, opcode: v_opcode,
4284	retval: -EOPNOTSUPP);
4285	break;
4286	}
4287
4288	return ret;
4289	}
4290
4291	/**
4292	* i40e_vc_process_vflr_event
4293	* @pf: pointer to the PF structure
4294	*
4295	* called from the vlfr irq handler to
4296	* free up VF resources and state variables
4297	**/
4298	int i40e_vc_process_vflr_event(struct i40e_pf *pf)
4299	{
4300	struct i40e_hw *hw = &pf->hw;
4301	u32 reg, reg_idx, bit_idx;
4302	struct i40e_vf *vf;
4303	int vf_id;
4304
4305	if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state))
4306	return 0;
4307
4308	/* Re-enable the VFLR interrupt cause here, before looking for which
4309	* VF got reset. Otherwise, if another VF gets a reset while the
4310	* first one is being processed, that interrupt will be lost, and
4311	* that VF will be stuck in reset forever.
4312	*/
4313	reg = rd32(hw, I40E_PFINT_ICR0_ENA);
4314	reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
4315	wr32(hw, I40E_PFINT_ICR0_ENA, reg);
4316	i40e_flush(hw);
4317
4318	clear_bit(nr: __I40E_VFLR_EVENT_PENDING, addr: pf->state);
4319	for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
4320	reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
4321	bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
4322	/* read GLGEN_VFLRSTAT register to find out the flr VFs */
4323	vf = &pf->vf[vf_id];
4324	reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
4325	if (reg & BIT(bit_idx))
4326	/* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
4327	i40e_reset_vf(vf, flr: true);
4328	}
4329
4330	return 0;
4331	}
4332
4333	/**
4334	* i40e_validate_vf
4335	* @pf: the physical function
4336	* @vf_id: VF identifier
4337	*
4338	* Check that the VF is enabled and the VSI exists.
4339	*
4340	* Returns 0 on success, negative on failure
4341	**/
4342	static int i40e_validate_vf(struct i40e_pf *pf, int vf_id)
4343	{
4344	struct i40e_vsi *vsi;
4345	struct i40e_vf *vf;
4346	int ret = 0;
4347
4348	if (vf_id >= pf->num_alloc_vfs) {
4349	dev_err(&pf->pdev->dev,
4350	"Invalid VF Identifier %d\n", vf_id);
4351	ret = -EINVAL;
4352	goto err_out;
4353	}
4354	vf = &pf->vf[vf_id];
4355	vsi = i40e_find_vsi_from_id(pf, id: vf->lan_vsi_id);
4356	if (!vsi)
4357	ret = -EINVAL;
4358	err_out:
4359	return ret;
4360	}
4361
4362	/**
4363	* i40e_check_vf_init_timeout
4364	* @vf: the virtual function
4365	*
4366	* Check that the VF's initialization was successfully done and if not
4367	* wait up to 300ms for its finish.
4368	*
4369	* Returns true when VF is initialized, false on timeout
4370	**/
4371	static bool i40e_check_vf_init_timeout(struct i40e_vf *vf)
4372	{
4373	int i;
4374
4375	/* When the VF is resetting wait until it is done.
4376	* It can take up to 200 milliseconds, but wait for
4377	* up to 300 milliseconds to be safe.
4378	*/
4379	for (i = 0; i < 15; i++) {
4380	if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states))
4381	return true;
4382	msleep(msecs: 20);
4383	}
4384
4385	if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4386	dev_err(&vf->pf->pdev->dev,
4387	"VF %d still in reset. Try again.\n", vf->vf_id);
4388	return false;
4389	}
4390
4391	return true;
4392	}
4393
4394	/**
4395	* i40e_ndo_set_vf_mac
4396	* @netdev: network interface device structure
4397	* @vf_id: VF identifier
4398	* @mac: mac address
4399	*
4400	* program VF mac address
4401	**/
4402	int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
4403	{
4404	struct i40e_netdev_priv *np = netdev_priv(dev: netdev);
4405	struct i40e_vsi *vsi = np->vsi;
4406	struct i40e_pf *pf = vsi->back;
4407	struct i40e_mac_filter *f;
4408	struct i40e_vf *vf;
4409	int ret = 0;
4410	struct hlist_node *h;
4411	int bkt;
4412
4413	if (test_and_set_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state)) {
4414	dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4415	return -EAGAIN;
4416	}
4417
4418	/* validate the request */
4419	ret = i40e_validate_vf(pf, vf_id);
4420	if (ret)
4421	goto error_param;
4422
4423	vf = &pf->vf[vf_id];
4424	if (!i40e_check_vf_init_timeout(vf)) {
4425	ret = -EAGAIN;
4426	goto error_param;
4427	}
4428	vsi = pf->vsi[vf->lan_vsi_idx];
4429
4430	if (is_multicast_ether_addr(addr: mac)) {
4431	dev_err(&pf->pdev->dev,
4432	"Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
4433	ret = -EINVAL;
4434	goto error_param;
4435	}
4436
4437	/* Lock once because below invoked function add/del_filter requires
4438	* mac_filter_hash_lock to be held
4439	*/
4440	spin_lock_bh(lock: &vsi->mac_filter_hash_lock);
4441
4442	/* delete the temporary mac address */
4443	if (!is_zero_ether_addr(addr: vf->default_lan_addr.addr))
4444	i40e_del_mac_filter(vsi, macaddr: vf->default_lan_addr.addr);
4445
4446	/* Delete all the filters for this VSI - we're going to kill it
4447	* anyway.
4448	*/
4449	hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
4450	__i40e_del_filter(vsi, f);
4451
4452	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
4453
4454	/* program mac filter */
4455	if (i40e_sync_vsi_filters(vsi)) {
4456	dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
4457	ret = -EIO;
4458	goto error_param;
4459	}
4460	ether_addr_copy(dst: vf->default_lan_addr.addr, src: mac);
4461
4462	if (is_zero_ether_addr(addr: mac)) {
4463	vf->pf_set_mac = false;
4464	dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id);
4465	} else {
4466	vf->pf_set_mac = true;
4467	dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n",
4468	mac, vf_id);
4469	}
4470
4471	/* Force the VF interface down so it has to bring up with new MAC
4472	* address
4473	*/
4474	i40e_vc_reset_vf(vf, notify_vf: true);
4475	dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n");
4476
4477	error_param:
4478	clear_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state);
4479	return ret;
4480	}
4481
4482	/**
4483	* i40e_ndo_set_vf_port_vlan
4484	* @netdev: network interface device structure
4485	* @vf_id: VF identifier
4486	* @vlan_id: mac address
4487	* @qos: priority setting
4488	* @vlan_proto: vlan protocol
4489	*
4490	* program VF vlan id and/or qos
4491	**/
4492	int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
4493	u16 vlan_id, u8 qos, __be16 vlan_proto)
4494	{
4495	u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
4496	struct i40e_netdev_priv *np = netdev_priv(dev: netdev);
4497	bool allmulti = false, alluni = false;
4498	struct i40e_pf *pf = np->vsi->back;
4499	struct i40e_vsi *vsi;
4500	struct i40e_vf *vf;
4501	int ret = 0;
4502
4503	if (test_and_set_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state)) {
4504	dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4505	return -EAGAIN;
4506	}
4507
4508	/* validate the request */
4509	ret = i40e_validate_vf(pf, vf_id);
4510	if (ret)
4511	goto error_pvid;
4512
4513	if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
4514	dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
4515	ret = -EINVAL;
4516	goto error_pvid;
4517	}
4518
4519	if (vlan_proto != htons(ETH_P_8021Q)) {
4520	dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
4521	ret = -EPROTONOSUPPORT;
4522	goto error_pvid;
4523	}
4524
4525	vf = &pf->vf[vf_id];
4526	if (!i40e_check_vf_init_timeout(vf)) {
4527	ret = -EAGAIN;
4528	goto error_pvid;
4529	}
4530	vsi = pf->vsi[vf->lan_vsi_idx];
4531
4532	if (le16_to_cpu(vsi->info.pvid) == vlanprio)
4533	/* duplicate request, so just return success */
4534	goto error_pvid;
4535
4536	i40e_vlan_stripping_enable(vsi);
4537
4538	/* Locked once because multiple functions below iterate list */
4539	spin_lock_bh(lock: &vsi->mac_filter_hash_lock);
4540
4541	/* Check for condition where there was already a port VLAN ID
4542	* filter set and now it is being deleted by setting it to zero.
4543	* Additionally check for the condition where there was a port
4544	* VLAN but now there is a new and different port VLAN being set.
4545	* Before deleting all the old VLAN filters we must add new ones
4546	* with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
4547	* MAC addresses deleted.
4548	*/
4549	if ((!(vlan_id || qos) ||
4550	vlanprio != le16_to_cpu(vsi->info.pvid)) &&
4551	vsi->info.pvid) {
4552	ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
4553	if (ret) {
4554	dev_info(&vsi->back->pdev->dev,
4555	"add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4556	vsi->back->hw.aq.asq_last_status);
4557	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
4558	goto error_pvid;
4559	}
4560	}
4561
4562	if (vsi->info.pvid) {
4563	/* remove all filters on the old VLAN */
4564	i40e_rm_vlan_all_mac(vsi, vid: (le16_to_cpu(vsi->info.pvid) &
4565	VLAN_VID_MASK));
4566	}
4567
4568	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
4569
4570	/* disable promisc modes in case they were enabled */
4571	ret = i40e_config_vf_promiscuous_mode(vf, vsi_id: vf->lan_vsi_id,
4572	allmulti, alluni);
4573	if (ret) {
4574	dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n");
4575	goto error_pvid;
4576	}
4577
4578	if (vlan_id || qos)
4579	ret = i40e_vsi_add_pvid(vsi, vid: vlanprio);
4580	else
4581	i40e_vsi_remove_pvid(vsi);
4582	spin_lock_bh(lock: &vsi->mac_filter_hash_lock);
4583
4584	if (vlan_id) {
4585	dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
4586	vlan_id, qos, vf_id);
4587
4588	/* add new VLAN filter for each MAC */
4589	ret = i40e_add_vlan_all_mac(vsi, vid: vlan_id);
4590	if (ret) {
4591	dev_info(&vsi->back->pdev->dev,
4592	"add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4593	vsi->back->hw.aq.asq_last_status);
4594	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
4595	goto error_pvid;
4596	}
4597
4598	/* remove the previously added non-VLAN MAC filters */
4599	i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
4600	}
4601
4602	spin_unlock_bh(lock: &vsi->mac_filter_hash_lock);
4603
4604	if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
4605	alluni = true;
4606
4607	if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
4608	allmulti = true;
4609
4610	/* Schedule the worker thread to take care of applying changes */
4611	i40e_service_event_schedule(pf: vsi->back);
4612
4613	if (ret) {
4614	dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
4615	goto error_pvid;
4616	}
4617
4618	/* The Port VLAN needs to be saved across resets the same as the
4619	* default LAN MAC address.
4620	*/
4621	vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
4622
4623	i40e_vc_reset_vf(vf, notify_vf: true);
4624	/* During reset the VF got a new VSI, so refresh a pointer. */
4625	vsi = pf->vsi[vf->lan_vsi_idx];
4626
4627	ret = i40e_config_vf_promiscuous_mode(vf, vsi_id: vsi->id, allmulti, alluni);
4628	if (ret) {
4629	dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n");
4630	goto error_pvid;
4631	}
4632
4633	ret = 0;
4634
4635	error_pvid:
4636	clear_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state);
4637	return ret;
4638	}
4639
4640	/**
4641	* i40e_ndo_set_vf_bw
4642	* @netdev: network interface device structure
4643	* @vf_id: VF identifier
4644	* @min_tx_rate: Minimum Tx rate
4645	* @max_tx_rate: Maximum Tx rate
4646	*
4647	* configure VF Tx rate
4648	**/
4649	int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
4650	int max_tx_rate)
4651	{
4652	struct i40e_netdev_priv *np = netdev_priv(dev: netdev);
4653	struct i40e_pf *pf = np->vsi->back;
4654	struct i40e_vsi *vsi;
4655	struct i40e_vf *vf;
4656	int ret = 0;
4657
4658	if (test_and_set_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state)) {
4659	dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4660	return -EAGAIN;
4661	}
4662
4663	/* validate the request */
4664	ret = i40e_validate_vf(pf, vf_id);
4665	if (ret)
4666	goto error;
4667
4668	if (min_tx_rate) {
4669	dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
4670	min_tx_rate, vf_id);
4671	ret = -EINVAL;
4672	goto error;
4673	}
4674
4675	vf = &pf->vf[vf_id];
4676	if (!i40e_check_vf_init_timeout(vf)) {
4677	ret = -EAGAIN;
4678	goto error;
4679	}
4680	vsi = pf->vsi[vf->lan_vsi_idx];
4681
4682	ret = i40e_set_bw_limit(vsi, seid: vsi->seid, max_tx_rate);
4683	if (ret)
4684	goto error;
4685
4686	vf->tx_rate = max_tx_rate;
4687	error:
4688	clear_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state);
4689	return ret;
4690	}
4691
4692	/**
4693	* i40e_ndo_get_vf_config
4694	* @netdev: network interface device structure
4695	* @vf_id: VF identifier
4696	* @ivi: VF configuration structure
4697	*
4698	* return VF configuration
4699	**/
4700	int i40e_ndo_get_vf_config(struct net_device *netdev,
4701	int vf_id, struct ifla_vf_info *ivi)
4702	{
4703	struct i40e_netdev_priv *np = netdev_priv(dev: netdev);
4704	struct i40e_vsi *vsi = np->vsi;
4705	struct i40e_pf *pf = vsi->back;
4706	struct i40e_vf *vf;
4707	int ret = 0;
4708
4709	if (test_and_set_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state)) {
4710	dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4711	return -EAGAIN;
4712	}
4713
4714	/* validate the request */
4715	ret = i40e_validate_vf(pf, vf_id);
4716	if (ret)
4717	goto error_param;
4718
4719	vf = &pf->vf[vf_id];
4720	/* first vsi is always the LAN vsi */
4721	vsi = pf->vsi[vf->lan_vsi_idx];
4722	if (!vsi) {
4723	ret = -ENOENT;
4724	goto error_param;
4725	}
4726
4727	ivi->vf = vf_id;
4728
4729	ether_addr_copy(dst: ivi->mac, src: vf->default_lan_addr.addr);
4730
4731	ivi->max_tx_rate = vf->tx_rate;
4732	ivi->min_tx_rate = 0;
4733	ivi->vlan = le16_get_bits(v: vsi->info.pvid, I40E_VLAN_MASK);
4734	ivi->qos = le16_get_bits(v: vsi->info.pvid, I40E_PRIORITY_MASK);
4735	if (vf->link_forced == false)
4736	ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
4737	else if (vf->link_up == true)
4738	ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
4739	else
4740	ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
4741	ivi->spoofchk = vf->spoofchk;
4742	ivi->trusted = vf->trusted;
4743	ret = 0;
4744
4745	error_param:
4746	clear_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state);
4747	return ret;
4748	}
4749
4750	/**
4751	* i40e_ndo_set_vf_link_state
4752	* @netdev: network interface device structure
4753	* @vf_id: VF identifier
4754	* @link: required link state
4755	*
4756	* Set the link state of a specified VF, regardless of physical link state
4757	**/
4758	int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
4759	{
4760	struct i40e_netdev_priv *np = netdev_priv(dev: netdev);
4761	struct i40e_pf *pf = np->vsi->back;
4762	struct i40e_link_status *ls = &pf->hw.phy.link_info;
4763	struct virtchnl_pf_event pfe;
4764	struct i40e_hw *hw = &pf->hw;
4765	struct i40e_vsi *vsi;
4766	unsigned long q_map;
4767	struct i40e_vf *vf;
4768	int abs_vf_id;
4769	int ret = 0;
4770	int tmp;
4771
4772	if (test_and_set_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state)) {
4773	dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4774	return -EAGAIN;
4775	}
4776
4777	/* validate the request */
4778	if (vf_id >= pf->num_alloc_vfs) {
4779	dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4780	ret = -EINVAL;
4781	goto error_out;
4782	}
4783
4784	vf = &pf->vf[vf_id];
4785	abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
4786
4787	pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
4788	pfe.severity = PF_EVENT_SEVERITY_INFO;
4789
4790	switch (link) {
4791	case IFLA_VF_LINK_STATE_AUTO:
4792	vf->link_forced = false;
4793	vf->is_disabled_from_host = false;
4794	/* reset needed to reinit VF resources */
4795	i40e_vc_reset_vf(vf, notify_vf: true);
4796	i40e_set_vf_link_state(vf, pfe: &pfe, ls);
4797	break;
4798	case IFLA_VF_LINK_STATE_ENABLE:
4799	vf->link_forced = true;
4800	vf->link_up = true;
4801	vf->is_disabled_from_host = false;
4802	/* reset needed to reinit VF resources */
4803	i40e_vc_reset_vf(vf, notify_vf: true);
4804	i40e_set_vf_link_state(vf, pfe: &pfe, ls);
4805	break;
4806	case IFLA_VF_LINK_STATE_DISABLE:
4807	vf->link_forced = true;
4808	vf->link_up = false;
4809	i40e_set_vf_link_state(vf, pfe: &pfe, ls);
4810
4811	vsi = pf->vsi[vf->lan_vsi_idx];
4812	q_map = BIT(vsi->num_queue_pairs) - 1;
4813
4814	vf->is_disabled_from_host = true;
4815
4816	/* Try to stop both Tx&Rx rings even if one of the calls fails
4817	* to ensure we stop the rings even in case of errors.
4818	* If any of them returns with an error then the first
4819	* error that occurred will be returned.
4820	*/
4821	tmp = i40e_ctrl_vf_tx_rings(vsi, q_map, enable: false);
4822	ret = i40e_ctrl_vf_rx_rings(vsi, q_map, enable: false);
4823
4824	ret = tmp ? tmp : ret;
4825	break;
4826	default:
4827	ret = -EINVAL;
4828	goto error_out;
4829	}
4830	/* Notify the VF of its new link state */
4831	i40e_aq_send_msg_to_vf(hw, vfid: abs_vf_id, v_opcode: VIRTCHNL_OP_EVENT,
4832	v_retval: 0, msg: (u8 *)&pfe, msglen: sizeof(pfe), NULL);
4833
4834	error_out:
4835	clear_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state);
4836	return ret;
4837	}
4838
4839	/**
4840	* i40e_ndo_set_vf_spoofchk
4841	* @netdev: network interface device structure
4842	* @vf_id: VF identifier
4843	* @enable: flag to enable or disable feature
4844	*
4845	* Enable or disable VF spoof checking
4846	**/
4847	int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
4848	{
4849	struct i40e_netdev_priv *np = netdev_priv(dev: netdev);
4850	struct i40e_vsi *vsi = np->vsi;
4851	struct i40e_pf *pf = vsi->back;
4852	struct i40e_vsi_context ctxt;
4853	struct i40e_hw *hw = &pf->hw;
4854	struct i40e_vf *vf;
4855	int ret = 0;
4856
4857	if (test_and_set_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state)) {
4858	dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4859	return -EAGAIN;
4860	}
4861
4862	/* validate the request */
4863	if (vf_id >= pf->num_alloc_vfs) {
4864	dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4865	ret = -EINVAL;
4866	goto out;
4867	}
4868
4869	vf = &(pf->vf[vf_id]);
4870	if (!i40e_check_vf_init_timeout(vf)) {
4871	ret = -EAGAIN;
4872	goto out;
4873	}
4874
4875	if (enable == vf->spoofchk)
4876	goto out;
4877
4878	vf->spoofchk = enable;
4879	memset(&ctxt, 0, sizeof(ctxt));
4880	ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
4881	ctxt.pf_num = pf->hw.pf_id;
4882	ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
4883	if (enable)
4884	ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
4885	I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
4886	ret = i40e_aq_update_vsi_params(hw, vsi_ctx: &ctxt, NULL);
4887	if (ret) {
4888	dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
4889	ret);
4890	ret = -EIO;
4891	}
4892	out:
4893	clear_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state);
4894	return ret;
4895	}
4896
4897	/**
4898	* i40e_ndo_set_vf_trust
4899	* @netdev: network interface device structure of the pf
4900	* @vf_id: VF identifier
4901	* @setting: trust setting
4902	*
4903	* Enable or disable VF trust setting
4904	**/
4905	int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
4906	{
4907	struct i40e_netdev_priv *np = netdev_priv(dev: netdev);
4908	struct i40e_pf *pf = np->vsi->back;
4909	struct i40e_vf *vf;
4910	int ret = 0;
4911
4912	if (test_and_set_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state)) {
4913	dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4914	return -EAGAIN;
4915	}
4916
4917	/* validate the request */
4918	if (vf_id >= pf->num_alloc_vfs) {
4919	dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4920	ret = -EINVAL;
4921	goto out;
4922	}
4923
4924	if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) {
4925	dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
4926	ret = -EINVAL;
4927	goto out;
4928	}
4929
4930	vf = &pf->vf[vf_id];
4931
4932	if (setting == vf->trusted)
4933	goto out;
4934
4935	vf->trusted = setting;
4936
4937	/* request PF to sync mac/vlan filters for the VF */
4938	set_bit(nr: __I40E_MACVLAN_SYNC_PENDING, addr: pf->state);
4939	pf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED;
4940
4941	i40e_vc_reset_vf(vf, notify_vf: true);
4942	dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
4943	vf_id, setting ? "" : "un");
4944
4945	if (vf->adq_enabled) {
4946	if (!vf->trusted) {
4947	dev_info(&pf->pdev->dev,
4948	"VF %u no longer Trusted, deleting all cloud filters\n",
4949	vf_id);
4950	i40e_del_all_cloud_filters(vf);
4951	}
4952	}
4953
4954	out:
4955	clear_bit(nr: __I40E_VIRTCHNL_OP_PENDING, addr: pf->state);
4956	return ret;
4957	}
4958
4959	/**
4960	* i40e_get_vf_stats - populate some stats for the VF
4961	* @netdev: the netdev of the PF
4962	* @vf_id: the host OS identifier (0-127)
4963	* @vf_stats: pointer to the OS memory to be initialized
4964	*/
4965	int i40e_get_vf_stats(struct net_device *netdev, int vf_id,
4966	struct ifla_vf_stats *vf_stats)
4967	{
4968	struct i40e_netdev_priv *np = netdev_priv(dev: netdev);
4969	struct i40e_pf *pf = np->vsi->back;
4970	struct i40e_eth_stats *stats;
4971	struct i40e_vsi *vsi;
4972	struct i40e_vf *vf;
4973
4974	/* validate the request */
4975	if (i40e_validate_vf(pf, vf_id))
4976	return -EINVAL;
4977
4978	vf = &pf->vf[vf_id];
4979	if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4980	dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id);
4981	return -EBUSY;
4982	}
4983
4984	vsi = pf->vsi[vf->lan_vsi_idx];
4985	if (!vsi)
4986	return -EINVAL;
4987
4988	i40e_update_eth_stats(vsi);
4989	stats = &vsi->eth_stats;
4990
4991	memset(vf_stats, 0, sizeof(*vf_stats));
4992
4993	vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast +
4994	stats->rx_multicast;
4995	vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast +
4996	stats->tx_multicast;
4997	vf_stats->rx_bytes = stats->rx_bytes;
4998	vf_stats->tx_bytes = stats->tx_bytes;
4999	vf_stats->broadcast = stats->rx_broadcast;
5000	vf_stats->multicast = stats->rx_multicast;
5001	vf_stats->rx_dropped = stats->rx_discards + stats->rx_discards_other;
5002	vf_stats->tx_dropped = stats->tx_discards;
5003
5004	return 0;
5005	}
5006