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1/*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2016 Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
17 *
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
20 *
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 ******************************************************************************/
26
27#include "i40e.h"
28
29/*********************notification routines***********************/
30
31/**
32 * i40e_vc_vf_broadcast
33 * @pf: pointer to the PF structure
34 * @opcode: operation code
35 * @retval: return value
36 * @msg: pointer to the msg buffer
37 * @msglen: msg length
38 *
39 * send a message to all VFs on a given PF
40 **/
41static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
42 enum i40e_virtchnl_ops v_opcode,
43 i40e_status v_retval, u8 *msg,
44 u16 msglen)
45{
46 struct i40e_hw *hw = &pf->hw;
47 struct i40e_vf *vf = pf->vf;
48 int i;
49
50 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
51 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
52 /* Not all vfs are enabled so skip the ones that are not */
53 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
54 !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
55 continue;
56
57 /* Ignore return value on purpose - a given VF may fail, but
58 * we need to keep going and send to all of them
59 */
60 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
61 msg, msglen, NULL);
62 }
63}
64
65/**
66 * i40e_vc_notify_link_state
67 * @vf: pointer to the VF structure
68 *
69 * send a link status message to a single VF
70 **/
71static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
72{
73 struct i40e_virtchnl_pf_event pfe;
74 struct i40e_pf *pf = vf->pf;
75 struct i40e_hw *hw = &pf->hw;
76 struct i40e_link_status *ls = &pf->hw.phy.link_info;
77 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
78
79 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
80 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
81 if (vf->link_forced) {
82 pfe.event_data.link_event.link_status = vf->link_up;
83 pfe.event_data.link_event.link_speed =
84 (vf->link_up ? I40E_LINK_SPEED_40GB : 0);
85 } else {
86 pfe.event_data.link_event.link_status =
87 ls->link_info & I40E_AQ_LINK_UP;
88 pfe.event_data.link_event.link_speed = ls->link_speed;
89 }
90 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
91 0, (u8 *)&pfe, sizeof(pfe), NULL);
92}
93
94/**
95 * i40e_vc_notify_link_state
96 * @pf: pointer to the PF structure
97 *
98 * send a link status message to all VFs on a given PF
99 **/
100void i40e_vc_notify_link_state(struct i40e_pf *pf)
101{
102 int i;
103
104 for (i = 0; i < pf->num_alloc_vfs; i++)
105 i40e_vc_notify_vf_link_state(&pf->vf[i]);
106}
107
108/**
109 * i40e_vc_notify_reset
110 * @pf: pointer to the PF structure
111 *
112 * indicate a pending reset to all VFs on a given PF
113 **/
114void i40e_vc_notify_reset(struct i40e_pf *pf)
115{
116 struct i40e_virtchnl_pf_event pfe;
117
118 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
119 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
120 i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, 0,
121 (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
122}
123
124/**
125 * i40e_vc_notify_vf_reset
126 * @vf: pointer to the VF structure
127 *
128 * indicate a pending reset to the given VF
129 **/
130void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
131{
132 struct i40e_virtchnl_pf_event pfe;
133 int abs_vf_id;
134
135 /* validate the request */
136 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
137 return;
138
139 /* verify if the VF is in either init or active before proceeding */
140 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
141 !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
142 return;
143
144 abs_vf_id = vf->vf_id + vf->pf->hw.func_caps.vf_base_id;
145
146 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
147 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
148 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
149 0, (u8 *)&pfe,
150 sizeof(struct i40e_virtchnl_pf_event), NULL);
151}
152/***********************misc routines*****************************/
153
154/**
155 * i40e_vc_disable_vf
156 * @pf: pointer to the PF info
157 * @vf: pointer to the VF info
158 *
159 * Disable the VF through a SW reset
160 **/
161static inline void i40e_vc_disable_vf(struct i40e_pf *pf, struct i40e_vf *vf)
162{
163 i40e_vc_notify_vf_reset(vf);
164 i40e_reset_vf(vf, false);
165}
166
167/**
168 * i40e_vc_isvalid_vsi_id
169 * @vf: pointer to the VF info
170 * @vsi_id: VF relative VSI id
171 *
172 * check for the valid VSI id
173 **/
174static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
175{
176 struct i40e_pf *pf = vf->pf;
177 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
178
179 return (vsi && (vsi->vf_id == vf->vf_id));
180}
181
182/**
183 * i40e_vc_isvalid_queue_id
184 * @vf: pointer to the VF info
185 * @vsi_id: vsi id
186 * @qid: vsi relative queue id
187 *
188 * check for the valid queue id
189 **/
190static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
191 u8 qid)
192{
193 struct i40e_pf *pf = vf->pf;
194 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
195
196 return (vsi && (qid < vsi->alloc_queue_pairs));
197}
198
199/**
200 * i40e_vc_isvalid_vector_id
201 * @vf: pointer to the VF info
202 * @vector_id: VF relative vector id
203 *
204 * check for the valid vector id
205 **/
206static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
207{
208 struct i40e_pf *pf = vf->pf;
209
210 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
211}
212
213/***********************vf resource mgmt routines*****************/
214
215/**
216 * i40e_vc_get_pf_queue_id
217 * @vf: pointer to the VF info
218 * @vsi_id: id of VSI as provided by the FW
219 * @vsi_queue_id: vsi relative queue id
220 *
221 * return PF relative queue id
222 **/
223static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
224 u8 vsi_queue_id)
225{
226 struct i40e_pf *pf = vf->pf;
227 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
228 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
229
230 if (!vsi)
231 return pf_queue_id;
232
233 if (le16_to_cpu(vsi->info.mapping_flags) &
234 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
235 pf_queue_id =
236 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
237 else
238 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
239 vsi_queue_id;
240
241 return pf_queue_id;
242}
243
244/**
245 * i40e_config_irq_link_list
246 * @vf: pointer to the VF info
247 * @vsi_id: id of VSI as given by the FW
248 * @vecmap: irq map info
249 *
250 * configure irq link list from the map
251 **/
252static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
253 struct i40e_virtchnl_vector_map *vecmap)
254{
255 unsigned long linklistmap = 0, tempmap;
256 struct i40e_pf *pf = vf->pf;
257 struct i40e_hw *hw = &pf->hw;
258 u16 vsi_queue_id, pf_queue_id;
259 enum i40e_queue_type qtype;
260 u16 next_q, vector_id;
261 u32 reg, reg_idx;
262 u16 itr_idx = 0;
263
264 vector_id = vecmap->vector_id;
265 /* setup the head */
266 if (0 == vector_id)
267 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
268 else
269 reg_idx = I40E_VPINT_LNKLSTN(
270 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
271 (vector_id - 1));
272
273 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
274 /* Special case - No queues mapped on this vector */
275 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
276 goto irq_list_done;
277 }
278 tempmap = vecmap->rxq_map;
279 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
280 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
281 vsi_queue_id));
282 }
283
284 tempmap = vecmap->txq_map;
285 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
286 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
287 vsi_queue_id + 1));
288 }
289
290 next_q = find_first_bit(&linklistmap,
291 (I40E_MAX_VSI_QP *
292 I40E_VIRTCHNL_SUPPORTED_QTYPES));
293 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
294 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
295 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
296 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
297
298 wr32(hw, reg_idx, reg);
299
300 while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
301 switch (qtype) {
302 case I40E_QUEUE_TYPE_RX:
303 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
304 itr_idx = vecmap->rxitr_idx;
305 break;
306 case I40E_QUEUE_TYPE_TX:
307 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
308 itr_idx = vecmap->txitr_idx;
309 break;
310 default:
311 break;
312 }
313
314 next_q = find_next_bit(&linklistmap,
315 (I40E_MAX_VSI_QP *
316 I40E_VIRTCHNL_SUPPORTED_QTYPES),
317 next_q + 1);
318 if (next_q <
319 (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
320 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
321 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
322 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id,
323 vsi_queue_id);
324 } else {
325 pf_queue_id = I40E_QUEUE_END_OF_LIST;
326 qtype = 0;
327 }
328
329 /* format for the RQCTL & TQCTL regs is same */
330 reg = (vector_id) |
331 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
332 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
333 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
334 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
335 wr32(hw, reg_idx, reg);
336 }
337
338 /* if the vf is running in polling mode and using interrupt zero,
339 * need to disable auto-mask on enabling zero interrupt for VFs.
340 */
341 if ((vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
342 (vector_id == 0)) {
343 reg = rd32(hw, I40E_GLINT_CTL);
344 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {
345 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;
346 wr32(hw, I40E_GLINT_CTL, reg);
347 }
348 }
349
350irq_list_done:
351 i40e_flush(hw);
352}
353
354/**
355 * i40e_release_iwarp_qvlist
356 * @vf: pointer to the VF.
357 *
358 **/
359static void i40e_release_iwarp_qvlist(struct i40e_vf *vf)
360{
361 struct i40e_pf *pf = vf->pf;
362 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info;
363 u32 msix_vf;
364 u32 i;
365
366 if (!vf->qvlist_info)
367 return;
368
369 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
370 for (i = 0; i < qvlist_info->num_vectors; i++) {
371 struct i40e_virtchnl_iwarp_qv_info *qv_info;
372 u32 next_q_index, next_q_type;
373 struct i40e_hw *hw = &pf->hw;
374 u32 v_idx, reg_idx, reg;
375
376 qv_info = &qvlist_info->qv_info[i];
377 if (!qv_info)
378 continue;
379 v_idx = qv_info->v_idx;
380 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
381 /* Figure out the queue after CEQ and make that the
382 * first queue.
383 */
384 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
385 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
386 next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK)
387 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT;
388 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK)
389 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT;
390
391 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
392 reg = (next_q_index &
393 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
394 (next_q_type <<
395 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
396
397 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
398 }
399 }
400 kfree(vf->qvlist_info);
401 vf->qvlist_info = NULL;
402}
403
404/**
405 * i40e_config_iwarp_qvlist
406 * @vf: pointer to the VF info
407 * @qvlist_info: queue and vector list
408 *
409 * Return 0 on success or < 0 on error
410 **/
411static int i40e_config_iwarp_qvlist(struct i40e_vf *vf,
412 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info)
413{
414 struct i40e_pf *pf = vf->pf;
415 struct i40e_hw *hw = &pf->hw;
416 struct i40e_virtchnl_iwarp_qv_info *qv_info;
417 u32 v_idx, i, reg_idx, reg;
418 u32 next_q_idx, next_q_type;
419 u32 msix_vf, size;
420
421 size = sizeof(struct i40e_virtchnl_iwarp_qvlist_info) +
422 (sizeof(struct i40e_virtchnl_iwarp_qv_info) *
423 (qvlist_info->num_vectors - 1));
424 vf->qvlist_info = kzalloc(size, GFP_KERNEL);
425 vf->qvlist_info->num_vectors = qvlist_info->num_vectors;
426
427 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
428 for (i = 0; i < qvlist_info->num_vectors; i++) {
429 qv_info = &qvlist_info->qv_info[i];
430 if (!qv_info)
431 continue;
432 v_idx = qv_info->v_idx;
433
434 /* Validate vector id belongs to this vf */
435 if (!i40e_vc_isvalid_vector_id(vf, v_idx))
436 goto err;
437
438 vf->qvlist_info->qv_info[i] = *qv_info;
439
440 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
441 /* We might be sharing the interrupt, so get the first queue
442 * index and type, push it down the list by adding the new
443 * queue on top. Also link it with the new queue in CEQCTL.
444 */
445 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
446 next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >>
447 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT);
448 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >>
449 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
450
451 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
452 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
453 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |
454 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |
455 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |
456 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |
457 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));
458 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);
459
460 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
461 reg = (qv_info->ceq_idx &
462 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
463 (I40E_QUEUE_TYPE_PE_CEQ <<
464 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
465 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
466 }
467
468 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
469 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |
470 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |
471 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));
472
473 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);
474 }
475 }
476
477 return 0;
478err:
479 kfree(vf->qvlist_info);
480 vf->qvlist_info = NULL;
481 return -EINVAL;
482}
483
484/**
485 * i40e_config_vsi_tx_queue
486 * @vf: pointer to the VF info
487 * @vsi_id: id of VSI as provided by the FW
488 * @vsi_queue_id: vsi relative queue index
489 * @info: config. info
490 *
491 * configure tx queue
492 **/
493static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
494 u16 vsi_queue_id,
495 struct i40e_virtchnl_txq_info *info)
496{
497 struct i40e_pf *pf = vf->pf;
498 struct i40e_hw *hw = &pf->hw;
499 struct i40e_hmc_obj_txq tx_ctx;
500 struct i40e_vsi *vsi;
501 u16 pf_queue_id;
502 u32 qtx_ctl;
503 int ret = 0;
504
505 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
506 vsi = i40e_find_vsi_from_id(pf, vsi_id);
507
508 /* clear the context structure first */
509 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
510
511 /* only set the required fields */
512 tx_ctx.base = info->dma_ring_addr / 128;
513 tx_ctx.qlen = info->ring_len;
514 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
515 tx_ctx.rdylist_act = 0;
516 tx_ctx.head_wb_ena = info->headwb_enabled;
517 tx_ctx.head_wb_addr = info->dma_headwb_addr;
518
519 /* clear the context in the HMC */
520 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
521 if (ret) {
522 dev_err(&pf->pdev->dev,
523 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
524 pf_queue_id, ret);
525 ret = -ENOENT;
526 goto error_context;
527 }
528
529 /* set the context in the HMC */
530 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
531 if (ret) {
532 dev_err(&pf->pdev->dev,
533 "Failed to set VF LAN Tx queue context %d error: %d\n",
534 pf_queue_id, ret);
535 ret = -ENOENT;
536 goto error_context;
537 }
538
539 /* associate this queue with the PCI VF function */
540 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
541 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
542 & I40E_QTX_CTL_PF_INDX_MASK);
543 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
544 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
545 & I40E_QTX_CTL_VFVM_INDX_MASK);
546 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
547 i40e_flush(hw);
548
549error_context:
550 return ret;
551}
552
553/**
554 * i40e_config_vsi_rx_queue
555 * @vf: pointer to the VF info
556 * @vsi_id: id of VSI as provided by the FW
557 * @vsi_queue_id: vsi relative queue index
558 * @info: config. info
559 *
560 * configure rx queue
561 **/
562static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
563 u16 vsi_queue_id,
564 struct i40e_virtchnl_rxq_info *info)
565{
566 struct i40e_pf *pf = vf->pf;
567 struct i40e_hw *hw = &pf->hw;
568 struct i40e_hmc_obj_rxq rx_ctx;
569 u16 pf_queue_id;
570 int ret = 0;
571
572 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
573
574 /* clear the context structure first */
575 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
576
577 /* only set the required fields */
578 rx_ctx.base = info->dma_ring_addr / 128;
579 rx_ctx.qlen = info->ring_len;
580
581 if (info->splithdr_enabled) {
582 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
583 I40E_RX_SPLIT_IP |
584 I40E_RX_SPLIT_TCP_UDP |
585 I40E_RX_SPLIT_SCTP;
586 /* header length validation */
587 if (info->hdr_size > ((2 * 1024) - 64)) {
588 ret = -EINVAL;
589 goto error_param;
590 }
591 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
592
593 /* set splitalways mode 10b */
594 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;
595 }
596
597 /* databuffer length validation */
598 if (info->databuffer_size > ((16 * 1024) - 128)) {
599 ret = -EINVAL;
600 goto error_param;
601 }
602 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
603
604 /* max pkt. length validation */
605 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
606 ret = -EINVAL;
607 goto error_param;
608 }
609 rx_ctx.rxmax = info->max_pkt_size;
610
611 /* enable 32bytes desc always */
612 rx_ctx.dsize = 1;
613
614 /* default values */
615 rx_ctx.lrxqthresh = 2;
616 rx_ctx.crcstrip = 1;
617 rx_ctx.prefena = 1;
618 rx_ctx.l2tsel = 1;
619
620 /* clear the context in the HMC */
621 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
622 if (ret) {
623 dev_err(&pf->pdev->dev,
624 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
625 pf_queue_id, ret);
626 ret = -ENOENT;
627 goto error_param;
628 }
629
630 /* set the context in the HMC */
631 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
632 if (ret) {
633 dev_err(&pf->pdev->dev,
634 "Failed to set VF LAN Rx queue context %d error: %d\n",
635 pf_queue_id, ret);
636 ret = -ENOENT;
637 goto error_param;
638 }
639
640error_param:
641 return ret;
642}
643
644/**
645 * i40e_alloc_vsi_res
646 * @vf: pointer to the VF info
647 * @type: type of VSI to allocate
648 *
649 * alloc VF vsi context & resources
650 **/
651static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
652{
653 struct i40e_mac_filter *f = NULL;
654 struct i40e_pf *pf = vf->pf;
655 struct i40e_vsi *vsi;
656 int ret = 0;
657
658 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
659
660 if (!vsi) {
661 dev_err(&pf->pdev->dev,
662 "add vsi failed for VF %d, aq_err %d\n",
663 vf->vf_id, pf->hw.aq.asq_last_status);
664 ret = -ENOENT;
665 goto error_alloc_vsi_res;
666 }
667 if (type == I40E_VSI_SRIOV) {
668 u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
669
670 vf->lan_vsi_idx = vsi->idx;
671 vf->lan_vsi_id = vsi->id;
672 /* If the port VLAN has been configured and then the
673 * VF driver was removed then the VSI port VLAN
674 * configuration was destroyed. Check if there is
675 * a port VLAN and restore the VSI configuration if
676 * needed.
677 */
678 if (vf->port_vlan_id)
679 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
680
681 spin_lock_bh(&vsi->mac_filter_list_lock);
682 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
683 f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
684 vf->port_vlan_id ? vf->port_vlan_id : -1,
685 true, false);
686 if (!f)
687 dev_info(&pf->pdev->dev,
688 "Could not add MAC filter %pM for VF %d\n",
689 vf->default_lan_addr.addr, vf->vf_id);
690 }
691 f = i40e_add_filter(vsi, brdcast,
692 vf->port_vlan_id ? vf->port_vlan_id : -1,
693 true, false);
694 if (!f)
695 dev_info(&pf->pdev->dev,
696 "Could not allocate VF broadcast filter\n");
697 spin_unlock_bh(&vsi->mac_filter_list_lock);
698 }
699
700 /* program mac filter */
701 ret = i40e_sync_vsi_filters(vsi);
702 if (ret)
703 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
704
705 /* Set VF bandwidth if specified */
706 if (vf->tx_rate) {
707 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
708 vf->tx_rate / 50, 0, NULL);
709 if (ret)
710 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
711 vf->vf_id, ret);
712 }
713
714error_alloc_vsi_res:
715 return ret;
716}
717
718/**
719 * i40e_enable_vf_mappings
720 * @vf: pointer to the VF info
721 *
722 * enable VF mappings
723 **/
724static void i40e_enable_vf_mappings(struct i40e_vf *vf)
725{
726 struct i40e_pf *pf = vf->pf;
727 struct i40e_hw *hw = &pf->hw;
728 u32 reg, total_queue_pairs = 0;
729 int j;
730
731 /* Tell the hardware we're using noncontiguous mapping. HW requires
732 * that VF queues be mapped using this method, even when they are
733 * contiguous in real life
734 */
735 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
736 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
737
738 /* enable VF vplan_qtable mappings */
739 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
740 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
741
742 /* map PF queues to VF queues */
743 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) {
744 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j);
745
746 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
747 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
748 total_queue_pairs++;
749 }
750
751 /* map PF queues to VSI */
752 for (j = 0; j < 7; j++) {
753 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) {
754 reg = 0x07FF07FF; /* unused */
755 } else {
756 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
757 j * 2);
758 reg = qid;
759 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
760 (j * 2) + 1);
761 reg |= qid << 16;
762 }
763 i40e_write_rx_ctl(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id),
764 reg);
765 }
766
767 i40e_flush(hw);
768}
769
770/**
771 * i40e_disable_vf_mappings
772 * @vf: pointer to the VF info
773 *
774 * disable VF mappings
775 **/
776static void i40e_disable_vf_mappings(struct i40e_vf *vf)
777{
778 struct i40e_pf *pf = vf->pf;
779 struct i40e_hw *hw = &pf->hw;
780 int i;
781
782 /* disable qp mappings */
783 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
784 for (i = 0; i < I40E_MAX_VSI_QP; i++)
785 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
786 I40E_QUEUE_END_OF_LIST);
787 i40e_flush(hw);
788}
789
790/**
791 * i40e_free_vf_res
792 * @vf: pointer to the VF info
793 *
794 * free VF resources
795 **/
796static void i40e_free_vf_res(struct i40e_vf *vf)
797{
798 struct i40e_pf *pf = vf->pf;
799 struct i40e_hw *hw = &pf->hw;
800 u32 reg_idx, reg;
801 int i, msix_vf;
802
803 /* free vsi & disconnect it from the parent uplink */
804 if (vf->lan_vsi_idx) {
805 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
806 vf->lan_vsi_idx = 0;
807 vf->lan_vsi_id = 0;
808 }
809 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
810
811 /* disable interrupts so the VF starts in a known state */
812 for (i = 0; i < msix_vf; i++) {
813 /* format is same for both registers */
814 if (0 == i)
815 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
816 else
817 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
818 (vf->vf_id))
819 + (i - 1));
820 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
821 i40e_flush(hw);
822 }
823
824 /* clear the irq settings */
825 for (i = 0; i < msix_vf; i++) {
826 /* format is same for both registers */
827 if (0 == i)
828 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
829 else
830 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
831 (vf->vf_id))
832 + (i - 1));
833 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
834 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
835 wr32(hw, reg_idx, reg);
836 i40e_flush(hw);
837 }
838 /* reset some of the state varibles keeping
839 * track of the resources
840 */
841 vf->num_queue_pairs = 0;
842 vf->vf_states = 0;
843 clear_bit(I40E_VF_STAT_INIT, &vf->vf_states);
844}
845
846/**
847 * i40e_alloc_vf_res
848 * @vf: pointer to the VF info
849 *
850 * allocate VF resources
851 **/
852static int i40e_alloc_vf_res(struct i40e_vf *vf)
853{
854 struct i40e_pf *pf = vf->pf;
855 int total_queue_pairs = 0;
856 int ret;
857
858 /* allocate hw vsi context & associated resources */
859 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
860 if (ret)
861 goto error_alloc;
862 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
863 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
864
865 /* store the total qps number for the runtime
866 * VF req validation
867 */
868 vf->num_queue_pairs = total_queue_pairs;
869
870 /* VF is now completely initialized */
871 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
872
873error_alloc:
874 if (ret)
875 i40e_free_vf_res(vf);
876
877 return ret;
878}
879
880#define VF_DEVICE_STATUS 0xAA
881#define VF_TRANS_PENDING_MASK 0x20
882/**
883 * i40e_quiesce_vf_pci
884 * @vf: pointer to the VF structure
885 *
886 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
887 * if the transactions never clear.
888 **/
889static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
890{
891 struct i40e_pf *pf = vf->pf;
892 struct i40e_hw *hw = &pf->hw;
893 int vf_abs_id, i;
894 u32 reg;
895
896 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
897
898 wr32(hw, I40E_PF_PCI_CIAA,
899 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
900 for (i = 0; i < 100; i++) {
901 reg = rd32(hw, I40E_PF_PCI_CIAD);
902 if ((reg & VF_TRANS_PENDING_MASK) == 0)
903 return 0;
904 udelay(1);
905 }
906 return -EIO;
907}
908
909/**
910 * i40e_reset_vf
911 * @vf: pointer to the VF structure
912 * @flr: VFLR was issued or not
913 *
914 * reset the VF
915 **/
916void i40e_reset_vf(struct i40e_vf *vf, bool flr)
917{
918 struct i40e_pf *pf = vf->pf;
919 struct i40e_hw *hw = &pf->hw;
920 bool rsd = false;
921 int i;
922 u32 reg;
923
924 if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
925 return;
926
927 /* warn the VF */
928 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
929
930 /* In the case of a VFLR, the HW has already reset the VF and we
931 * just need to clean up, so don't hit the VFRTRIG register.
932 */
933 if (!flr) {
934 /* reset VF using VPGEN_VFRTRIG reg */
935 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
936 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
937 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
938 i40e_flush(hw);
939 }
940
941 if (i40e_quiesce_vf_pci(vf))
942 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
943 vf->vf_id);
944
945 /* poll VPGEN_VFRSTAT reg to make sure
946 * that reset is complete
947 */
948 for (i = 0; i < 10; i++) {
949 /* VF reset requires driver to first reset the VF and then
950 * poll the status register to make sure that the reset
951 * completed successfully. Due to internal HW FIFO flushes,
952 * we must wait 10ms before the register will be valid.
953 */
954 usleep_range(10000, 20000);
955 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
956 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
957 rsd = true;
958 break;
959 }
960 }
961
962 if (flr)
963 usleep_range(10000, 20000);
964
965 if (!rsd)
966 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
967 vf->vf_id);
968 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
969 /* clear the reset bit in the VPGEN_VFRTRIG reg */
970 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
971 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
972 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
973
974 /* On initial reset, we won't have any queues */
975 if (vf->lan_vsi_idx == 0)
976 goto complete_reset;
977
978 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false);
979complete_reset:
980 /* reallocate VF resources to reset the VSI state */
981 i40e_free_vf_res(vf);
982 if (!i40e_alloc_vf_res(vf)) {
983 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
984 i40e_enable_vf_mappings(vf);
985 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
986 clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
987 i40e_notify_client_of_vf_reset(pf, abs_vf_id);
988 }
989 /* tell the VF the reset is done */
990 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
991 i40e_flush(hw);
992 clear_bit(__I40E_VF_DISABLE, &pf->state);
993}
994
995/**
996 * i40e_free_vfs
997 * @pf: pointer to the PF structure
998 *
999 * free VF resources
1000 **/
1001void i40e_free_vfs(struct i40e_pf *pf)
1002{
1003 struct i40e_hw *hw = &pf->hw;
1004 u32 reg_idx, bit_idx;
1005 int i, tmp, vf_id;
1006
1007 if (!pf->vf)
1008 return;
1009 while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
1010 usleep_range(1000, 2000);
1011
1012 i40e_notify_client_of_vf_enable(pf, 0);
1013 for (i = 0; i < pf->num_alloc_vfs; i++)
1014 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
1015 i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
1016 false);
1017
1018 /* Disable IOV before freeing resources. This lets any VF drivers
1019 * running in the host get themselves cleaned up before we yank
1020 * the carpet out from underneath their feet.
1021 */
1022 if (!pci_vfs_assigned(pf->pdev))
1023 pci_disable_sriov(pf->pdev);
1024 else
1025 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1026
1027 msleep(20); /* let any messages in transit get finished up */
1028
1029 /* free up VF resources */
1030 tmp = pf->num_alloc_vfs;
1031 pf->num_alloc_vfs = 0;
1032 for (i = 0; i < tmp; i++) {
1033 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
1034 i40e_free_vf_res(&pf->vf[i]);
1035 /* disable qp mappings */
1036 i40e_disable_vf_mappings(&pf->vf[i]);
1037 }
1038
1039 kfree(pf->vf);
1040 pf->vf = NULL;
1041
1042 /* This check is for when the driver is unloaded while VFs are
1043 * assigned. Setting the number of VFs to 0 through sysfs is caught
1044 * before this function ever gets called.
1045 */
1046 if (!pci_vfs_assigned(pf->pdev)) {
1047 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1048 * work correctly when SR-IOV gets re-enabled.
1049 */
1050 for (vf_id = 0; vf_id < tmp; vf_id++) {
1051 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1052 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1053 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1054 }
1055 }
1056 clear_bit(__I40E_VF_DISABLE, &pf->state);
1057}
1058
1059#ifdef CONFIG_PCI_IOV
1060/**
1061 * i40e_alloc_vfs
1062 * @pf: pointer to the PF structure
1063 * @num_alloc_vfs: number of VFs to allocate
1064 *
1065 * allocate VF resources
1066 **/
1067int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1068{
1069 struct i40e_vf *vfs;
1070 int i, ret = 0;
1071
1072 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1073 i40e_irq_dynamic_disable_icr0(pf);
1074
1075 /* Check to see if we're just allocating resources for extant VFs */
1076 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1077 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1078 if (ret) {
1079 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1080 pf->num_alloc_vfs = 0;
1081 goto err_iov;
1082 }
1083 }
1084 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1085 /* allocate memory */
1086 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1087 if (!vfs) {
1088 ret = -ENOMEM;
1089 goto err_alloc;
1090 }
1091 pf->vf = vfs;
1092
1093 /* apply default profile */
1094 for (i = 0; i < num_alloc_vfs; i++) {
1095 vfs[i].pf = pf;
1096 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1097 vfs[i].vf_id = i;
1098
1099 /* assign default capabilities */
1100 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1101 vfs[i].spoofchk = true;
1102 /* VF resources get allocated during reset */
1103 i40e_reset_vf(&vfs[i], false);
1104
1105 }
1106 pf->num_alloc_vfs = num_alloc_vfs;
1107
1108err_alloc:
1109 if (ret)
1110 i40e_free_vfs(pf);
1111err_iov:
1112 /* Re-enable interrupt 0. */
1113 i40e_irq_dynamic_enable_icr0(pf, false);
1114 return ret;
1115}
1116
1117#endif
1118/**
1119 * i40e_pci_sriov_enable
1120 * @pdev: pointer to a pci_dev structure
1121 * @num_vfs: number of VFs to allocate
1122 *
1123 * Enable or change the number of VFs
1124 **/
1125static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1126{
1127#ifdef CONFIG_PCI_IOV
1128 struct i40e_pf *pf = pci_get_drvdata(pdev);
1129 int pre_existing_vfs = pci_num_vf(pdev);
1130 int err = 0;
1131
1132 if (test_bit(__I40E_TESTING, &pf->state)) {
1133 dev_warn(&pdev->dev,
1134 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1135 err = -EPERM;
1136 goto err_out;
1137 }
1138
1139 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1140 i40e_free_vfs(pf);
1141 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1142 goto out;
1143
1144 if (num_vfs > pf->num_req_vfs) {
1145 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1146 num_vfs, pf->num_req_vfs);
1147 err = -EPERM;
1148 goto err_out;
1149 }
1150
1151 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1152 err = i40e_alloc_vfs(pf, num_vfs);
1153 if (err) {
1154 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1155 goto err_out;
1156 }
1157
1158out:
1159 return num_vfs;
1160
1161err_out:
1162 return err;
1163#endif
1164 return 0;
1165}
1166
1167/**
1168 * i40e_pci_sriov_configure
1169 * @pdev: pointer to a pci_dev structure
1170 * @num_vfs: number of VFs to allocate
1171 *
1172 * Enable or change the number of VFs. Called when the user updates the number
1173 * of VFs in sysfs.
1174 **/
1175int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1176{
1177 struct i40e_pf *pf = pci_get_drvdata(pdev);
1178
1179 if (num_vfs) {
1180 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1181 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1182 i40e_do_reset_safe(pf,
1183 BIT_ULL(__I40E_PF_RESET_REQUESTED));
1184 }
1185 return i40e_pci_sriov_enable(pdev, num_vfs);
1186 }
1187
1188 if (!pci_vfs_assigned(pf->pdev)) {
1189 i40e_free_vfs(pf);
1190 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1191 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
1192 } else {
1193 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1194 return -EINVAL;
1195 }
1196 return 0;
1197}
1198
1199/***********************virtual channel routines******************/
1200
1201/**
1202 * i40e_vc_send_msg_to_vf
1203 * @vf: pointer to the VF info
1204 * @v_opcode: virtual channel opcode
1205 * @v_retval: virtual channel return value
1206 * @msg: pointer to the msg buffer
1207 * @msglen: msg length
1208 *
1209 * send msg to VF
1210 **/
1211static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1212 u32 v_retval, u8 *msg, u16 msglen)
1213{
1214 struct i40e_pf *pf;
1215 struct i40e_hw *hw;
1216 int abs_vf_id;
1217 i40e_status aq_ret;
1218
1219 /* validate the request */
1220 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1221 return -EINVAL;
1222
1223 pf = vf->pf;
1224 hw = &pf->hw;
1225 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1226
1227 /* single place to detect unsuccessful return values */
1228 if (v_retval) {
1229 vf->num_invalid_msgs++;
1230 dev_err(&pf->pdev->dev, "VF %d failed opcode %d, error: %d\n",
1231 vf->vf_id, v_opcode, v_retval);
1232 if (vf->num_invalid_msgs >
1233 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1234 dev_err(&pf->pdev->dev,
1235 "Number of invalid messages exceeded for VF %d\n",
1236 vf->vf_id);
1237 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1238 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1239 }
1240 } else {
1241 vf->num_valid_msgs++;
1242 /* reset the invalid counter, if a valid message is received. */
1243 vf->num_invalid_msgs = 0;
1244 }
1245
1246 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1247 msg, msglen, NULL);
1248 if (aq_ret) {
1249 dev_err(&pf->pdev->dev,
1250 "Unable to send the message to VF %d aq_err %d\n",
1251 vf->vf_id, pf->hw.aq.asq_last_status);
1252 return -EIO;
1253 }
1254
1255 return 0;
1256}
1257
1258/**
1259 * i40e_vc_send_resp_to_vf
1260 * @vf: pointer to the VF info
1261 * @opcode: operation code
1262 * @retval: return value
1263 *
1264 * send resp msg to VF
1265 **/
1266static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1267 enum i40e_virtchnl_ops opcode,
1268 i40e_status retval)
1269{
1270 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1271}
1272
1273/**
1274 * i40e_vc_get_version_msg
1275 * @vf: pointer to the VF info
1276 *
1277 * called from the VF to request the API version used by the PF
1278 **/
1279static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1280{
1281 struct i40e_virtchnl_version_info info = {
1282 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1283 };
1284
1285 vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg;
1286 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1287 if (VF_IS_V10(vf))
1288 info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1289 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1290 I40E_SUCCESS, (u8 *)&info,
1291 sizeof(struct
1292 i40e_virtchnl_version_info));
1293}
1294
1295/**
1296 * i40e_vc_get_vf_resources_msg
1297 * @vf: pointer to the VF info
1298 * @msg: pointer to the msg buffer
1299 * @msglen: msg length
1300 *
1301 * called from the VF to request its resources
1302 **/
1303static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1304{
1305 struct i40e_virtchnl_vf_resource *vfres = NULL;
1306 struct i40e_pf *pf = vf->pf;
1307 i40e_status aq_ret = 0;
1308 struct i40e_vsi *vsi;
1309 int i = 0, len = 0;
1310 int num_vsis = 1;
1311 int ret;
1312
1313 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1314 aq_ret = I40E_ERR_PARAM;
1315 goto err;
1316 }
1317
1318 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1319 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1320
1321 vfres = kzalloc(len, GFP_KERNEL);
1322 if (!vfres) {
1323 aq_ret = I40E_ERR_NO_MEMORY;
1324 len = 0;
1325 goto err;
1326 }
1327 if (VF_IS_V11(vf))
1328 vf->driver_caps = *(u32 *)msg;
1329 else
1330 vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
1331 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
1332 I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1333
1334 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1335 vsi = pf->vsi[vf->lan_vsi_idx];
1336 if (!vsi->info.pvid)
1337 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1338
1339 if (i40e_vf_client_capable(pf, vf->vf_id, I40E_CLIENT_IWARP) &&
1340 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_IWARP)) {
1341 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_IWARP;
1342 set_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states);
1343 }
1344
1345 if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) {
1346 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ)
1347 vfres->vf_offload_flags |=
1348 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1349 } else {
1350 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG;
1351 }
1352
1353 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
1354 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
1355 vfres->vf_offload_flags |=
1356 I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
1357 }
1358
1359 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING)
1360 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1361
1362 if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) {
1363 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1364 vfres->vf_offload_flags |=
1365 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
1366 }
1367
1368 vfres->num_vsis = num_vsis;
1369 vfres->num_queue_pairs = vf->num_queue_pairs;
1370 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1371 if (vf->lan_vsi_idx) {
1372 vfres->vsi_res[i].vsi_id = vf->lan_vsi_id;
1373 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1374 vfres->vsi_res[i].num_queue_pairs = vsi->alloc_queue_pairs;
1375 /* VFs only use TC 0 */
1376 vfres->vsi_res[i].qset_handle
1377 = le16_to_cpu(vsi->info.qs_handle[0]);
1378 ether_addr_copy(vfres->vsi_res[i].default_mac_addr,
1379 vf->default_lan_addr.addr);
1380 i++;
1381 }
1382 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1383
1384err:
1385 /* send the response back to the VF */
1386 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1387 aq_ret, (u8 *)vfres, len);
1388
1389 kfree(vfres);
1390 return ret;
1391}
1392
1393/**
1394 * i40e_vc_reset_vf_msg
1395 * @vf: pointer to the VF info
1396 * @msg: pointer to the msg buffer
1397 * @msglen: msg length
1398 *
1399 * called from the VF to reset itself,
1400 * unlike other virtchnl messages, PF driver
1401 * doesn't send the response back to the VF
1402 **/
1403static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1404{
1405 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1406 i40e_reset_vf(vf, false);
1407}
1408
1409/**
1410 * i40e_vc_config_promiscuous_mode_msg
1411 * @vf: pointer to the VF info
1412 * @msg: pointer to the msg buffer
1413 * @msglen: msg length
1414 *
1415 * called from the VF to configure the promiscuous mode of
1416 * VF vsis
1417 **/
1418static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1419 u8 *msg, u16 msglen)
1420{
1421 struct i40e_virtchnl_promisc_info *info =
1422 (struct i40e_virtchnl_promisc_info *)msg;
1423 struct i40e_pf *pf = vf->pf;
1424 struct i40e_hw *hw = &pf->hw;
1425 struct i40e_vsi *vsi;
1426 bool allmulti = false;
1427 i40e_status aq_ret;
1428
1429 vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1430 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1431 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1432 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1433 (vsi->type != I40E_VSI_FCOE)) {
1434 aq_ret = I40E_ERR_PARAM;
1435 goto error_param;
1436 }
1437 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1438 allmulti = true;
1439 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
1440 allmulti, NULL);
1441
1442error_param:
1443 /* send the response to the VF */
1444 return i40e_vc_send_resp_to_vf(vf,
1445 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1446 aq_ret);
1447}
1448
1449/**
1450 * i40e_vc_config_queues_msg
1451 * @vf: pointer to the VF info
1452 * @msg: pointer to the msg buffer
1453 * @msglen: msg length
1454 *
1455 * called from the VF to configure the rx/tx
1456 * queues
1457 **/
1458static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1459{
1460 struct i40e_virtchnl_vsi_queue_config_info *qci =
1461 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1462 struct i40e_virtchnl_queue_pair_info *qpi;
1463 struct i40e_pf *pf = vf->pf;
1464 u16 vsi_id, vsi_queue_id;
1465 i40e_status aq_ret = 0;
1466 int i;
1467
1468 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1469 aq_ret = I40E_ERR_PARAM;
1470 goto error_param;
1471 }
1472
1473 vsi_id = qci->vsi_id;
1474 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1475 aq_ret = I40E_ERR_PARAM;
1476 goto error_param;
1477 }
1478 for (i = 0; i < qci->num_queue_pairs; i++) {
1479 qpi = &qci->qpair[i];
1480 vsi_queue_id = qpi->txq.queue_id;
1481 if ((qpi->txq.vsi_id != vsi_id) ||
1482 (qpi->rxq.vsi_id != vsi_id) ||
1483 (qpi->rxq.queue_id != vsi_queue_id) ||
1484 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1485 aq_ret = I40E_ERR_PARAM;
1486 goto error_param;
1487 }
1488
1489 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1490 &qpi->rxq) ||
1491 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1492 &qpi->txq)) {
1493 aq_ret = I40E_ERR_PARAM;
1494 goto error_param;
1495 }
1496 }
1497 /* set vsi num_queue_pairs in use to num configured by VF */
1498 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1499
1500error_param:
1501 /* send the response to the VF */
1502 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1503 aq_ret);
1504}
1505
1506/**
1507 * i40e_vc_config_irq_map_msg
1508 * @vf: pointer to the VF info
1509 * @msg: pointer to the msg buffer
1510 * @msglen: msg length
1511 *
1512 * called from the VF to configure the irq to
1513 * queue map
1514 **/
1515static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1516{
1517 struct i40e_virtchnl_irq_map_info *irqmap_info =
1518 (struct i40e_virtchnl_irq_map_info *)msg;
1519 struct i40e_virtchnl_vector_map *map;
1520 u16 vsi_id, vsi_queue_id, vector_id;
1521 i40e_status aq_ret = 0;
1522 unsigned long tempmap;
1523 int i;
1524
1525 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1526 aq_ret = I40E_ERR_PARAM;
1527 goto error_param;
1528 }
1529
1530 for (i = 0; i < irqmap_info->num_vectors; i++) {
1531 map = &irqmap_info->vecmap[i];
1532
1533 vector_id = map->vector_id;
1534 vsi_id = map->vsi_id;
1535 /* validate msg params */
1536 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1537 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1538 aq_ret = I40E_ERR_PARAM;
1539 goto error_param;
1540 }
1541
1542 /* lookout for the invalid queue index */
1543 tempmap = map->rxq_map;
1544 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1545 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1546 vsi_queue_id)) {
1547 aq_ret = I40E_ERR_PARAM;
1548 goto error_param;
1549 }
1550 }
1551
1552 tempmap = map->txq_map;
1553 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1554 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1555 vsi_queue_id)) {
1556 aq_ret = I40E_ERR_PARAM;
1557 goto error_param;
1558 }
1559 }
1560
1561 i40e_config_irq_link_list(vf, vsi_id, map);
1562 }
1563error_param:
1564 /* send the response to the VF */
1565 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1566 aq_ret);
1567}
1568
1569/**
1570 * i40e_vc_enable_queues_msg
1571 * @vf: pointer to the VF info
1572 * @msg: pointer to the msg buffer
1573 * @msglen: msg length
1574 *
1575 * called from the VF to enable all or specific queue(s)
1576 **/
1577static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1578{
1579 struct i40e_virtchnl_queue_select *vqs =
1580 (struct i40e_virtchnl_queue_select *)msg;
1581 struct i40e_pf *pf = vf->pf;
1582 u16 vsi_id = vqs->vsi_id;
1583 i40e_status aq_ret = 0;
1584
1585 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1586 aq_ret = I40E_ERR_PARAM;
1587 goto error_param;
1588 }
1589
1590 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1591 aq_ret = I40E_ERR_PARAM;
1592 goto error_param;
1593 }
1594
1595 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1596 aq_ret = I40E_ERR_PARAM;
1597 goto error_param;
1598 }
1599
1600 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true))
1601 aq_ret = I40E_ERR_TIMEOUT;
1602error_param:
1603 /* send the response to the VF */
1604 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1605 aq_ret);
1606}
1607
1608/**
1609 * i40e_vc_disable_queues_msg
1610 * @vf: pointer to the VF info
1611 * @msg: pointer to the msg buffer
1612 * @msglen: msg length
1613 *
1614 * called from the VF to disable all or specific
1615 * queue(s)
1616 **/
1617static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1618{
1619 struct i40e_virtchnl_queue_select *vqs =
1620 (struct i40e_virtchnl_queue_select *)msg;
1621 struct i40e_pf *pf = vf->pf;
1622 i40e_status aq_ret = 0;
1623
1624 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1625 aq_ret = I40E_ERR_PARAM;
1626 goto error_param;
1627 }
1628
1629 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1630 aq_ret = I40E_ERR_PARAM;
1631 goto error_param;
1632 }
1633
1634 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1635 aq_ret = I40E_ERR_PARAM;
1636 goto error_param;
1637 }
1638
1639 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false))
1640 aq_ret = I40E_ERR_TIMEOUT;
1641
1642error_param:
1643 /* send the response to the VF */
1644 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1645 aq_ret);
1646}
1647
1648/**
1649 * i40e_vc_get_stats_msg
1650 * @vf: pointer to the VF info
1651 * @msg: pointer to the msg buffer
1652 * @msglen: msg length
1653 *
1654 * called from the VF to get vsi stats
1655 **/
1656static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1657{
1658 struct i40e_virtchnl_queue_select *vqs =
1659 (struct i40e_virtchnl_queue_select *)msg;
1660 struct i40e_pf *pf = vf->pf;
1661 struct i40e_eth_stats stats;
1662 i40e_status aq_ret = 0;
1663 struct i40e_vsi *vsi;
1664
1665 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1666
1667 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1668 aq_ret = I40E_ERR_PARAM;
1669 goto error_param;
1670 }
1671
1672 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1673 aq_ret = I40E_ERR_PARAM;
1674 goto error_param;
1675 }
1676
1677 vsi = pf->vsi[vf->lan_vsi_idx];
1678 if (!vsi) {
1679 aq_ret = I40E_ERR_PARAM;
1680 goto error_param;
1681 }
1682 i40e_update_eth_stats(vsi);
1683 stats = vsi->eth_stats;
1684
1685error_param:
1686 /* send the response back to the VF */
1687 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1688 (u8 *)&stats, sizeof(stats));
1689}
1690
1691/**
1692 * i40e_check_vf_permission
1693 * @vf: pointer to the VF info
1694 * @macaddr: pointer to the MAC Address being checked
1695 *
1696 * Check if the VF has permission to add or delete unicast MAC address
1697 * filters and return error code -EPERM if not. Then check if the
1698 * address filter requested is broadcast or zero and if so return
1699 * an invalid MAC address error code.
1700 **/
1701static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1702{
1703 struct i40e_pf *pf = vf->pf;
1704 int ret = 0;
1705
1706 if (is_broadcast_ether_addr(macaddr) ||
1707 is_zero_ether_addr(macaddr)) {
1708 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1709 ret = I40E_ERR_INVALID_MAC_ADDR;
1710 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1711 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1712 /* If the host VMM administrator has set the VF MAC address
1713 * administratively via the ndo_set_vf_mac command then deny
1714 * permission to the VF to add or delete unicast MAC addresses.
1715 * The VF may request to set the MAC address filter already
1716 * assigned to it so do not return an error in that case.
1717 */
1718 dev_err(&pf->pdev->dev,
1719 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
1720 ret = -EPERM;
1721 }
1722 return ret;
1723}
1724
1725/**
1726 * i40e_vc_add_mac_addr_msg
1727 * @vf: pointer to the VF info
1728 * @msg: pointer to the msg buffer
1729 * @msglen: msg length
1730 *
1731 * add guest mac address filter
1732 **/
1733static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1734{
1735 struct i40e_virtchnl_ether_addr_list *al =
1736 (struct i40e_virtchnl_ether_addr_list *)msg;
1737 struct i40e_pf *pf = vf->pf;
1738 struct i40e_vsi *vsi = NULL;
1739 u16 vsi_id = al->vsi_id;
1740 i40e_status ret = 0;
1741 int i;
1742
1743 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1744 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1745 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1746 ret = I40E_ERR_PARAM;
1747 goto error_param;
1748 }
1749
1750 for (i = 0; i < al->num_elements; i++) {
1751 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1752 if (ret)
1753 goto error_param;
1754 }
1755 vsi = pf->vsi[vf->lan_vsi_idx];
1756
1757 /* Lock once, because all function inside for loop accesses VSI's
1758 * MAC filter list which needs to be protected using same lock.
1759 */
1760 spin_lock_bh(&vsi->mac_filter_list_lock);
1761
1762 /* add new addresses to the list */
1763 for (i = 0; i < al->num_elements; i++) {
1764 struct i40e_mac_filter *f;
1765
1766 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1767 if (!f) {
1768 if (i40e_is_vsi_in_vlan(vsi))
1769 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1770 true, false);
1771 else
1772 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1773 true, false);
1774 }
1775
1776 if (!f) {
1777 dev_err(&pf->pdev->dev,
1778 "Unable to add MAC filter %pM for VF %d\n",
1779 al->list[i].addr, vf->vf_id);
1780 ret = I40E_ERR_PARAM;
1781 spin_unlock_bh(&vsi->mac_filter_list_lock);
1782 goto error_param;
1783 }
1784 }
1785 spin_unlock_bh(&vsi->mac_filter_list_lock);
1786
1787 /* program the updated filter list */
1788 ret = i40e_sync_vsi_filters(vsi);
1789 if (ret)
1790 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
1791 vf->vf_id, ret);
1792
1793error_param:
1794 /* send the response to the VF */
1795 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1796 ret);
1797}
1798
1799/**
1800 * i40e_vc_del_mac_addr_msg
1801 * @vf: pointer to the VF info
1802 * @msg: pointer to the msg buffer
1803 * @msglen: msg length
1804 *
1805 * remove guest mac address filter
1806 **/
1807static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1808{
1809 struct i40e_virtchnl_ether_addr_list *al =
1810 (struct i40e_virtchnl_ether_addr_list *)msg;
1811 struct i40e_pf *pf = vf->pf;
1812 struct i40e_vsi *vsi = NULL;
1813 u16 vsi_id = al->vsi_id;
1814 i40e_status ret = 0;
1815 int i;
1816
1817 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1818 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1819 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1820 ret = I40E_ERR_PARAM;
1821 goto error_param;
1822 }
1823
1824 for (i = 0; i < al->num_elements; i++) {
1825 if (is_broadcast_ether_addr(al->list[i].addr) ||
1826 is_zero_ether_addr(al->list[i].addr)) {
1827 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
1828 al->list[i].addr, vf->vf_id);
1829 ret = I40E_ERR_INVALID_MAC_ADDR;
1830 goto error_param;
1831 }
1832 }
1833 vsi = pf->vsi[vf->lan_vsi_idx];
1834
1835 spin_lock_bh(&vsi->mac_filter_list_lock);
1836 /* delete addresses from the list */
1837 for (i = 0; i < al->num_elements; i++)
1838 if (i40e_del_mac_all_vlan(vsi, al->list[i].addr, true, false)) {
1839 ret = I40E_ERR_INVALID_MAC_ADDR;
1840 spin_unlock_bh(&vsi->mac_filter_list_lock);
1841 goto error_param;
1842 }
1843
1844 spin_unlock_bh(&vsi->mac_filter_list_lock);
1845
1846 /* program the updated filter list */
1847 ret = i40e_sync_vsi_filters(vsi);
1848 if (ret)
1849 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
1850 vf->vf_id, ret);
1851
1852error_param:
1853 /* send the response to the VF */
1854 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
1855 ret);
1856}
1857
1858/**
1859 * i40e_vc_add_vlan_msg
1860 * @vf: pointer to the VF info
1861 * @msg: pointer to the msg buffer
1862 * @msglen: msg length
1863 *
1864 * program guest vlan id
1865 **/
1866static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1867{
1868 struct i40e_virtchnl_vlan_filter_list *vfl =
1869 (struct i40e_virtchnl_vlan_filter_list *)msg;
1870 struct i40e_pf *pf = vf->pf;
1871 struct i40e_vsi *vsi = NULL;
1872 u16 vsi_id = vfl->vsi_id;
1873 i40e_status aq_ret = 0;
1874 int i;
1875
1876 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1877 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1878 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1879 aq_ret = I40E_ERR_PARAM;
1880 goto error_param;
1881 }
1882
1883 for (i = 0; i < vfl->num_elements; i++) {
1884 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1885 aq_ret = I40E_ERR_PARAM;
1886 dev_err(&pf->pdev->dev,
1887 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1888 goto error_param;
1889 }
1890 }
1891 vsi = pf->vsi[vf->lan_vsi_idx];
1892 if (vsi->info.pvid) {
1893 aq_ret = I40E_ERR_PARAM;
1894 goto error_param;
1895 }
1896
1897 i40e_vlan_stripping_enable(vsi);
1898 for (i = 0; i < vfl->num_elements; i++) {
1899 /* add new VLAN filter */
1900 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1901
1902 if (ret)
1903 dev_err(&pf->pdev->dev,
1904 "Unable to add VLAN filter %d for VF %d, error %d\n",
1905 vfl->vlan_id[i], vf->vf_id, ret);
1906 }
1907
1908error_param:
1909 /* send the response to the VF */
1910 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1911}
1912
1913/**
1914 * i40e_vc_remove_vlan_msg
1915 * @vf: pointer to the VF info
1916 * @msg: pointer to the msg buffer
1917 * @msglen: msg length
1918 *
1919 * remove programmed guest vlan id
1920 **/
1921static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1922{
1923 struct i40e_virtchnl_vlan_filter_list *vfl =
1924 (struct i40e_virtchnl_vlan_filter_list *)msg;
1925 struct i40e_pf *pf = vf->pf;
1926 struct i40e_vsi *vsi = NULL;
1927 u16 vsi_id = vfl->vsi_id;
1928 i40e_status aq_ret = 0;
1929 int i;
1930
1931 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1932 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1933 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1934 aq_ret = I40E_ERR_PARAM;
1935 goto error_param;
1936 }
1937
1938 for (i = 0; i < vfl->num_elements; i++) {
1939 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1940 aq_ret = I40E_ERR_PARAM;
1941 goto error_param;
1942 }
1943 }
1944
1945 vsi = pf->vsi[vf->lan_vsi_idx];
1946 if (vsi->info.pvid) {
1947 aq_ret = I40E_ERR_PARAM;
1948 goto error_param;
1949 }
1950
1951 for (i = 0; i < vfl->num_elements; i++) {
1952 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1953
1954 if (ret)
1955 dev_err(&pf->pdev->dev,
1956 "Unable to delete VLAN filter %d for VF %d, error %d\n",
1957 vfl->vlan_id[i], vf->vf_id, ret);
1958 }
1959
1960error_param:
1961 /* send the response to the VF */
1962 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1963}
1964
1965/**
1966 * i40e_vc_iwarp_msg
1967 * @vf: pointer to the VF info
1968 * @msg: pointer to the msg buffer
1969 * @msglen: msg length
1970 *
1971 * called from the VF for the iwarp msgs
1972 **/
1973static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1974{
1975 struct i40e_pf *pf = vf->pf;
1976 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
1977 i40e_status aq_ret = 0;
1978
1979 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1980 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) {
1981 aq_ret = I40E_ERR_PARAM;
1982 goto error_param;
1983 }
1984
1985 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
1986 msg, msglen);
1987
1988error_param:
1989 /* send the response to the VF */
1990 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_IWARP,
1991 aq_ret);
1992}
1993
1994/**
1995 * i40e_vc_iwarp_qvmap_msg
1996 * @vf: pointer to the VF info
1997 * @msg: pointer to the msg buffer
1998 * @msglen: msg length
1999 * @config: config qvmap or release it
2000 *
2001 * called from the VF for the iwarp msgs
2002 **/
2003static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, u16 msglen,
2004 bool config)
2005{
2006 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info =
2007 (struct i40e_virtchnl_iwarp_qvlist_info *)msg;
2008 i40e_status aq_ret = 0;
2009
2010 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2011 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) {
2012 aq_ret = I40E_ERR_PARAM;
2013 goto error_param;
2014 }
2015
2016 if (config) {
2017 if (i40e_config_iwarp_qvlist(vf, qvlist_info))
2018 aq_ret = I40E_ERR_PARAM;
2019 } else {
2020 i40e_release_iwarp_qvlist(vf);
2021 }
2022
2023error_param:
2024 /* send the response to the VF */
2025 return i40e_vc_send_resp_to_vf(vf,
2026 config ? I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP :
2027 I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP,
2028 aq_ret);
2029}
2030
2031/**
2032 * i40e_vc_validate_vf_msg
2033 * @vf: pointer to the VF info
2034 * @msg: pointer to the msg buffer
2035 * @msglen: msg length
2036 * @msghndl: msg handle
2037 *
2038 * validate msg
2039 **/
2040static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
2041 u32 v_retval, u8 *msg, u16 msglen)
2042{
2043 bool err_msg_format = false;
2044 int valid_len;
2045
2046 /* Check if VF is disabled. */
2047 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
2048 return I40E_ERR_PARAM;
2049
2050 /* Validate message length. */
2051 switch (v_opcode) {
2052 case I40E_VIRTCHNL_OP_VERSION:
2053 valid_len = sizeof(struct i40e_virtchnl_version_info);
2054 break;
2055 case I40E_VIRTCHNL_OP_RESET_VF:
2056 valid_len = 0;
2057 break;
2058 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
2059 if (VF_IS_V11(vf))
2060 valid_len = sizeof(u32);
2061 else
2062 valid_len = 0;
2063 break;
2064 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
2065 valid_len = sizeof(struct i40e_virtchnl_txq_info);
2066 break;
2067 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
2068 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
2069 break;
2070 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
2071 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
2072 if (msglen >= valid_len) {
2073 struct i40e_virtchnl_vsi_queue_config_info *vqc =
2074 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
2075 valid_len += (vqc->num_queue_pairs *
2076 sizeof(struct
2077 i40e_virtchnl_queue_pair_info));
2078 if (vqc->num_queue_pairs == 0)
2079 err_msg_format = true;
2080 }
2081 break;
2082 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
2083 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
2084 if (msglen >= valid_len) {
2085 struct i40e_virtchnl_irq_map_info *vimi =
2086 (struct i40e_virtchnl_irq_map_info *)msg;
2087 valid_len += (vimi->num_vectors *
2088 sizeof(struct i40e_virtchnl_vector_map));
2089 if (vimi->num_vectors == 0)
2090 err_msg_format = true;
2091 }
2092 break;
2093 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
2094 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
2095 valid_len = sizeof(struct i40e_virtchnl_queue_select);
2096 break;
2097 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
2098 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
2099 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
2100 if (msglen >= valid_len) {
2101 struct i40e_virtchnl_ether_addr_list *veal =
2102 (struct i40e_virtchnl_ether_addr_list *)msg;
2103 valid_len += veal->num_elements *
2104 sizeof(struct i40e_virtchnl_ether_addr);
2105 if (veal->num_elements == 0)
2106 err_msg_format = true;
2107 }
2108 break;
2109 case I40E_VIRTCHNL_OP_ADD_VLAN:
2110 case I40E_VIRTCHNL_OP_DEL_VLAN:
2111 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
2112 if (msglen >= valid_len) {
2113 struct i40e_virtchnl_vlan_filter_list *vfl =
2114 (struct i40e_virtchnl_vlan_filter_list *)msg;
2115 valid_len += vfl->num_elements * sizeof(u16);
2116 if (vfl->num_elements == 0)
2117 err_msg_format = true;
2118 }
2119 break;
2120 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2121 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
2122 break;
2123 case I40E_VIRTCHNL_OP_GET_STATS:
2124 valid_len = sizeof(struct i40e_virtchnl_queue_select);
2125 break;
2126 case I40E_VIRTCHNL_OP_IWARP:
2127 /* These messages are opaque to us and will be validated in
2128 * the RDMA client code. We just need to check for nonzero
2129 * length. The firmware will enforce max length restrictions.
2130 */
2131 if (msglen)
2132 valid_len = msglen;
2133 else
2134 err_msg_format = true;
2135 break;
2136 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
2137 valid_len = 0;
2138 break;
2139 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
2140 valid_len = sizeof(struct i40e_virtchnl_iwarp_qvlist_info);
2141 if (msglen >= valid_len) {
2142 struct i40e_virtchnl_iwarp_qvlist_info *qv =
2143 (struct i40e_virtchnl_iwarp_qvlist_info *)msg;
2144 if (qv->num_vectors == 0) {
2145 err_msg_format = true;
2146 break;
2147 }
2148 valid_len += ((qv->num_vectors - 1) *
2149 sizeof(struct i40e_virtchnl_iwarp_qv_info));
2150 }
2151 break;
2152 /* These are always errors coming from the VF. */
2153 case I40E_VIRTCHNL_OP_EVENT:
2154 case I40E_VIRTCHNL_OP_UNKNOWN:
2155 default:
2156 return -EPERM;
2157 }
2158 /* few more checks */
2159 if ((valid_len != msglen) || (err_msg_format)) {
2160 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
2161 return -EINVAL;
2162 } else {
2163 return 0;
2164 }
2165}
2166
2167/**
2168 * i40e_vc_process_vf_msg
2169 * @pf: pointer to the PF structure
2170 * @vf_id: source VF id
2171 * @msg: pointer to the msg buffer
2172 * @msglen: msg length
2173 * @msghndl: msg handle
2174 *
2175 * called from the common aeq/arq handler to
2176 * process request from VF
2177 **/
2178int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
2179 u32 v_retval, u8 *msg, u16 msglen)
2180{
2181 struct i40e_hw *hw = &pf->hw;
2182 unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
2183 struct i40e_vf *vf;
2184 int ret;
2185
2186 pf->vf_aq_requests++;
2187 if (local_vf_id >= pf->num_alloc_vfs)
2188 return -EINVAL;
2189 vf = &(pf->vf[local_vf_id]);
2190 /* perform basic checks on the msg */
2191 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
2192
2193 if (ret) {
2194 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
2195 local_vf_id, v_opcode, msglen);
2196 return ret;
2197 }
2198
2199 switch (v_opcode) {
2200 case I40E_VIRTCHNL_OP_VERSION:
2201 ret = i40e_vc_get_version_msg(vf, msg);
2202 break;
2203 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
2204 ret = i40e_vc_get_vf_resources_msg(vf, msg);
2205 break;
2206 case I40E_VIRTCHNL_OP_RESET_VF:
2207 i40e_vc_reset_vf_msg(vf);
2208 ret = 0;
2209 break;
2210 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2211 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
2212 break;
2213 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
2214 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
2215 break;
2216 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
2217 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
2218 break;
2219 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
2220 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
2221 i40e_vc_notify_vf_link_state(vf);
2222 break;
2223 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
2224 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
2225 break;
2226 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
2227 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
2228 break;
2229 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
2230 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
2231 break;
2232 case I40E_VIRTCHNL_OP_ADD_VLAN:
2233 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
2234 break;
2235 case I40E_VIRTCHNL_OP_DEL_VLAN:
2236 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
2237 break;
2238 case I40E_VIRTCHNL_OP_GET_STATS:
2239 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
2240 break;
2241 case I40E_VIRTCHNL_OP_IWARP:
2242 ret = i40e_vc_iwarp_msg(vf, msg, msglen);
2243 break;
2244 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
2245 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, true);
2246 break;
2247 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
2248 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, false);
2249 break;
2250 case I40E_VIRTCHNL_OP_UNKNOWN:
2251 default:
2252 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
2253 v_opcode, local_vf_id);
2254 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
2255 I40E_ERR_NOT_IMPLEMENTED);
2256 break;
2257 }
2258
2259 return ret;
2260}
2261
2262/**
2263 * i40e_vc_process_vflr_event
2264 * @pf: pointer to the PF structure
2265 *
2266 * called from the vlfr irq handler to
2267 * free up VF resources and state variables
2268 **/
2269int i40e_vc_process_vflr_event(struct i40e_pf *pf)
2270{
2271 u32 reg, reg_idx, bit_idx, vf_id;
2272 struct i40e_hw *hw = &pf->hw;
2273 struct i40e_vf *vf;
2274
2275 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
2276 return 0;
2277
2278 /* Re-enable the VFLR interrupt cause here, before looking for which
2279 * VF got reset. Otherwise, if another VF gets a reset while the
2280 * first one is being processed, that interrupt will be lost, and
2281 * that VF will be stuck in reset forever.
2282 */
2283 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
2284 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
2285 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
2286 i40e_flush(hw);
2287
2288 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
2289 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
2290 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
2291 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
2292 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
2293 vf = &pf->vf[vf_id];
2294 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
2295 if (reg & BIT(bit_idx)) {
2296 /* clear the bit in GLGEN_VFLRSTAT */
2297 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
2298
2299 if (!test_bit(__I40E_DOWN, &pf->state))
2300 i40e_reset_vf(vf, true);
2301 }
2302 }
2303
2304 return 0;
2305}
2306
2307/**
2308 * i40e_ndo_set_vf_mac
2309 * @netdev: network interface device structure
2310 * @vf_id: VF identifier
2311 * @mac: mac address
2312 *
2313 * program VF mac address
2314 **/
2315int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
2316{
2317 struct i40e_netdev_priv *np = netdev_priv(netdev);
2318 struct i40e_vsi *vsi = np->vsi;
2319 struct i40e_pf *pf = vsi->back;
2320 struct i40e_mac_filter *f;
2321 struct i40e_vf *vf;
2322 int ret = 0;
2323
2324 /* validate the request */
2325 if (vf_id >= pf->num_alloc_vfs) {
2326 dev_err(&pf->pdev->dev,
2327 "Invalid VF Identifier %d\n", vf_id);
2328 ret = -EINVAL;
2329 goto error_param;
2330 }
2331
2332 vf = &(pf->vf[vf_id]);
2333 vsi = pf->vsi[vf->lan_vsi_idx];
2334 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2335 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2336 vf_id);
2337 ret = -EAGAIN;
2338 goto error_param;
2339 }
2340
2341 if (is_multicast_ether_addr(mac)) {
2342 dev_err(&pf->pdev->dev,
2343 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
2344 ret = -EINVAL;
2345 goto error_param;
2346 }
2347
2348 /* Lock once because below invoked function add/del_filter requires
2349 * mac_filter_list_lock to be held
2350 */
2351 spin_lock_bh(&vsi->mac_filter_list_lock);
2352
2353 /* delete the temporary mac address */
2354 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
2355 i40e_del_filter(vsi, vf->default_lan_addr.addr,
2356 vf->port_vlan_id ? vf->port_vlan_id : -1,
2357 true, false);
2358
2359 /* Delete all the filters for this VSI - we're going to kill it
2360 * anyway.
2361 */
2362 list_for_each_entry(f, &vsi->mac_filter_list, list)
2363 i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);
2364
2365 spin_unlock_bh(&vsi->mac_filter_list_lock);
2366
2367 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2368 /* program mac filter */
2369 if (i40e_sync_vsi_filters(vsi)) {
2370 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2371 ret = -EIO;
2372 goto error_param;
2373 }
2374 ether_addr_copy(vf->default_lan_addr.addr, mac);
2375 vf->pf_set_mac = true;
2376 /* Force the VF driver stop so it has to reload with new MAC address */
2377 i40e_vc_disable_vf(pf, vf);
2378 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2379
2380error_param:
2381 return ret;
2382}
2383
2384/**
2385 * i40e_ndo_set_vf_port_vlan
2386 * @netdev: network interface device structure
2387 * @vf_id: VF identifier
2388 * @vlan_id: mac address
2389 * @qos: priority setting
2390 *
2391 * program VF vlan id and/or qos
2392 **/
2393int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2394 int vf_id, u16 vlan_id, u8 qos)
2395{
2396 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
2397 struct i40e_netdev_priv *np = netdev_priv(netdev);
2398 struct i40e_pf *pf = np->vsi->back;
2399 bool is_vsi_in_vlan = false;
2400 struct i40e_vsi *vsi;
2401 struct i40e_vf *vf;
2402 int ret = 0;
2403
2404 /* validate the request */
2405 if (vf_id >= pf->num_alloc_vfs) {
2406 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2407 ret = -EINVAL;
2408 goto error_pvid;
2409 }
2410
2411 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2412 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2413 ret = -EINVAL;
2414 goto error_pvid;
2415 }
2416
2417 vf = &(pf->vf[vf_id]);
2418 vsi = pf->vsi[vf->lan_vsi_idx];
2419 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2420 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2421 vf_id);
2422 ret = -EAGAIN;
2423 goto error_pvid;
2424 }
2425
2426 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
2427 /* duplicate request, so just return success */
2428 goto error_pvid;
2429
2430 spin_lock_bh(&vsi->mac_filter_list_lock);
2431 is_vsi_in_vlan = i40e_is_vsi_in_vlan(vsi);
2432 spin_unlock_bh(&vsi->mac_filter_list_lock);
2433
2434 if (le16_to_cpu(vsi->info.pvid) == 0 && is_vsi_in_vlan) {
2435 dev_err(&pf->pdev->dev,
2436 "VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n",
2437 vf_id);
2438 /* Administrator Error - knock the VF offline until he does
2439 * the right thing by reconfiguring his network correctly
2440 * and then reloading the VF driver.
2441 */
2442 i40e_vc_disable_vf(pf, vf);
2443 /* During reset the VF got a new VSI, so refresh the pointer. */
2444 vsi = pf->vsi[vf->lan_vsi_idx];
2445 }
2446
2447 /* Check for condition where there was already a port VLAN ID
2448 * filter set and now it is being deleted by setting it to zero.
2449 * Additionally check for the condition where there was a port
2450 * VLAN but now there is a new and different port VLAN being set.
2451 * Before deleting all the old VLAN filters we must add new ones
2452 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2453 * MAC addresses deleted.
2454 */
2455 if ((!(vlan_id || qos) ||
2456 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
2457 vsi->info.pvid)
2458 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
2459
2460 if (vsi->info.pvid) {
2461 /* kill old VLAN */
2462 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2463 VLAN_VID_MASK));
2464 if (ret) {
2465 dev_info(&vsi->back->pdev->dev,
2466 "remove VLAN failed, ret=%d, aq_err=%d\n",
2467 ret, pf->hw.aq.asq_last_status);
2468 }
2469 }
2470 if (vlan_id || qos)
2471 ret = i40e_vsi_add_pvid(vsi, vlanprio);
2472 else
2473 i40e_vsi_remove_pvid(vsi);
2474
2475 if (vlan_id) {
2476 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2477 vlan_id, qos, vf_id);
2478
2479 /* add new VLAN filter */
2480 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2481 if (ret) {
2482 dev_info(&vsi->back->pdev->dev,
2483 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2484 vsi->back->hw.aq.asq_last_status);
2485 goto error_pvid;
2486 }
2487 /* Kill non-vlan MAC filters - ignore error return since
2488 * there might not be any non-vlan MAC filters.
2489 */
2490 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
2491 }
2492
2493 if (ret) {
2494 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2495 goto error_pvid;
2496 }
2497 /* The Port VLAN needs to be saved across resets the same as the
2498 * default LAN MAC address.
2499 */
2500 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2501 ret = 0;
2502
2503error_pvid:
2504 return ret;
2505}
2506
2507#define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
2508#define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
2509/**
2510 * i40e_ndo_set_vf_bw
2511 * @netdev: network interface device structure
2512 * @vf_id: VF identifier
2513 * @tx_rate: Tx rate
2514 *
2515 * configure VF Tx rate
2516 **/
2517int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
2518 int max_tx_rate)
2519{
2520 struct i40e_netdev_priv *np = netdev_priv(netdev);
2521 struct i40e_pf *pf = np->vsi->back;
2522 struct i40e_vsi *vsi;
2523 struct i40e_vf *vf;
2524 int speed = 0;
2525 int ret = 0;
2526
2527 /* validate the request */
2528 if (vf_id >= pf->num_alloc_vfs) {
2529 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
2530 ret = -EINVAL;
2531 goto error;
2532 }
2533
2534 if (min_tx_rate) {
2535 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
2536 min_tx_rate, vf_id);
2537 return -EINVAL;
2538 }
2539
2540 vf = &(pf->vf[vf_id]);
2541 vsi = pf->vsi[vf->lan_vsi_idx];
2542 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2543 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2544 vf_id);
2545 ret = -EAGAIN;
2546 goto error;
2547 }
2548
2549 switch (pf->hw.phy.link_info.link_speed) {
2550 case I40E_LINK_SPEED_40GB:
2551 speed = 40000;
2552 break;
2553 case I40E_LINK_SPEED_20GB:
2554 speed = 20000;
2555 break;
2556 case I40E_LINK_SPEED_10GB:
2557 speed = 10000;
2558 break;
2559 case I40E_LINK_SPEED_1GB:
2560 speed = 1000;
2561 break;
2562 default:
2563 break;
2564 }
2565
2566 if (max_tx_rate > speed) {
2567 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.",
2568 max_tx_rate, vf->vf_id);
2569 ret = -EINVAL;
2570 goto error;
2571 }
2572
2573 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
2574 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
2575 max_tx_rate = 50;
2576 }
2577
2578 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
2579 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
2580 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
2581 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
2582 if (ret) {
2583 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
2584 ret);
2585 ret = -EIO;
2586 goto error;
2587 }
2588 vf->tx_rate = max_tx_rate;
2589error:
2590 return ret;
2591}
2592
2593/**
2594 * i40e_ndo_get_vf_config
2595 * @netdev: network interface device structure
2596 * @vf_id: VF identifier
2597 * @ivi: VF configuration structure
2598 *
2599 * return VF configuration
2600 **/
2601int i40e_ndo_get_vf_config(struct net_device *netdev,
2602 int vf_id, struct ifla_vf_info *ivi)
2603{
2604 struct i40e_netdev_priv *np = netdev_priv(netdev);
2605 struct i40e_vsi *vsi = np->vsi;
2606 struct i40e_pf *pf = vsi->back;
2607 struct i40e_vf *vf;
2608 int ret = 0;
2609
2610 /* validate the request */
2611 if (vf_id >= pf->num_alloc_vfs) {
2612 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2613 ret = -EINVAL;
2614 goto error_param;
2615 }
2616
2617 vf = &(pf->vf[vf_id]);
2618 /* first vsi is always the LAN vsi */
2619 vsi = pf->vsi[vf->lan_vsi_idx];
2620 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2621 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2622 vf_id);
2623 ret = -EAGAIN;
2624 goto error_param;
2625 }
2626
2627 ivi->vf = vf_id;
2628
2629 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
2630
2631 ivi->max_tx_rate = vf->tx_rate;
2632 ivi->min_tx_rate = 0;
2633 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2634 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2635 I40E_VLAN_PRIORITY_SHIFT;
2636 if (vf->link_forced == false)
2637 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
2638 else if (vf->link_up == true)
2639 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
2640 else
2641 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
2642 ivi->spoofchk = vf->spoofchk;
2643 ret = 0;
2644
2645error_param:
2646 return ret;
2647}
2648
2649/**
2650 * i40e_ndo_set_vf_link_state
2651 * @netdev: network interface device structure
2652 * @vf_id: VF identifier
2653 * @link: required link state
2654 *
2655 * Set the link state of a specified VF, regardless of physical link state
2656 **/
2657int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
2658{
2659 struct i40e_netdev_priv *np = netdev_priv(netdev);
2660 struct i40e_pf *pf = np->vsi->back;
2661 struct i40e_virtchnl_pf_event pfe;
2662 struct i40e_hw *hw = &pf->hw;
2663 struct i40e_vf *vf;
2664 int abs_vf_id;
2665 int ret = 0;
2666
2667 /* validate the request */
2668 if (vf_id >= pf->num_alloc_vfs) {
2669 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2670 ret = -EINVAL;
2671 goto error_out;
2672 }
2673
2674 vf = &pf->vf[vf_id];
2675 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
2676
2677 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
2678 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
2679
2680 switch (link) {
2681 case IFLA_VF_LINK_STATE_AUTO:
2682 vf->link_forced = false;
2683 pfe.event_data.link_event.link_status =
2684 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
2685 pfe.event_data.link_event.link_speed =
2686 pf->hw.phy.link_info.link_speed;
2687 break;
2688 case IFLA_VF_LINK_STATE_ENABLE:
2689 vf->link_forced = true;
2690 vf->link_up = true;
2691 pfe.event_data.link_event.link_status = true;
2692 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
2693 break;
2694 case IFLA_VF_LINK_STATE_DISABLE:
2695 vf->link_forced = true;
2696 vf->link_up = false;
2697 pfe.event_data.link_event.link_status = false;
2698 pfe.event_data.link_event.link_speed = 0;
2699 break;
2700 default:
2701 ret = -EINVAL;
2702 goto error_out;
2703 }
2704 /* Notify the VF of its new link state */
2705 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
2706 0, (u8 *)&pfe, sizeof(pfe), NULL);
2707
2708error_out:
2709 return ret;
2710}
2711
2712/**
2713 * i40e_ndo_set_vf_spoofchk
2714 * @netdev: network interface device structure
2715 * @vf_id: VF identifier
2716 * @enable: flag to enable or disable feature
2717 *
2718 * Enable or disable VF spoof checking
2719 **/
2720int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
2721{
2722 struct i40e_netdev_priv *np = netdev_priv(netdev);
2723 struct i40e_vsi *vsi = np->vsi;
2724 struct i40e_pf *pf = vsi->back;
2725 struct i40e_vsi_context ctxt;
2726 struct i40e_hw *hw = &pf->hw;
2727 struct i40e_vf *vf;
2728 int ret = 0;
2729
2730 /* validate the request */
2731 if (vf_id >= pf->num_alloc_vfs) {
2732 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2733 ret = -EINVAL;
2734 goto out;
2735 }
2736
2737 vf = &(pf->vf[vf_id]);
2738 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2739 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2740 vf_id);
2741 ret = -EAGAIN;
2742 goto out;
2743 }
2744
2745 if (enable == vf->spoofchk)
2746 goto out;
2747
2748 vf->spoofchk = enable;
2749 memset(&ctxt, 0, sizeof(ctxt));
2750 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
2751 ctxt.pf_num = pf->hw.pf_id;
2752 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
2753 if (enable)
2754 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
2755 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
2756 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
2757 if (ret) {
2758 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
2759 ret);
2760 ret = -EIO;
2761 }
2762out:
2763 return ret;
2764}
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 2013 - 2018 Intel Corporation. */
3
4#include "i40e.h"
5
6/*********************notification routines***********************/
7
8/**
9 * i40e_vc_vf_broadcast
10 * @pf: pointer to the PF structure
11 * @v_opcode: operation code
12 * @v_retval: return value
13 * @msg: pointer to the msg buffer
14 * @msglen: msg length
15 *
16 * send a message to all VFs on a given PF
17 **/
18static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
19 enum virtchnl_ops v_opcode,
20 i40e_status v_retval, u8 *msg,
21 u16 msglen)
22{
23 struct i40e_hw *hw = &pf->hw;
24 struct i40e_vf *vf = pf->vf;
25 int i;
26
27 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
28 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;
29 /* Not all vfs are enabled so skip the ones that are not */
30 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
31 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
32 continue;
33
34 /* Ignore return value on purpose - a given VF may fail, but
35 * we need to keep going and send to all of them
36 */
37 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
38 msg, msglen, NULL);
39 }
40}
41
42/**
43 * i40e_vc_notify_vf_link_state
44 * @vf: pointer to the VF structure
45 *
46 * send a link status message to a single VF
47 **/
48static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
49{
50 struct virtchnl_pf_event pfe;
51 struct i40e_pf *pf = vf->pf;
52 struct i40e_hw *hw = &pf->hw;
53 struct i40e_link_status *ls = &pf->hw.phy.link_info;
54 int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id;
55
56 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
57 pfe.severity = PF_EVENT_SEVERITY_INFO;
58
59 /* Always report link is down if the VF queues aren't enabled */
60 if (!vf->queues_enabled) {
61 pfe.event_data.link_event.link_status = false;
62 pfe.event_data.link_event.link_speed = 0;
63 } else if (vf->link_forced) {
64 pfe.event_data.link_event.link_status = vf->link_up;
65 pfe.event_data.link_event.link_speed =
66 (vf->link_up ? VIRTCHNL_LINK_SPEED_40GB : 0);
67 } else {
68 pfe.event_data.link_event.link_status =
69 ls->link_info & I40E_AQ_LINK_UP;
70 pfe.event_data.link_event.link_speed =
71 i40e_virtchnl_link_speed(ls->link_speed);
72 }
73
74 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
75 0, (u8 *)&pfe, sizeof(pfe), NULL);
76}
77
78/**
79 * i40e_vc_notify_link_state
80 * @pf: pointer to the PF structure
81 *
82 * send a link status message to all VFs on a given PF
83 **/
84void i40e_vc_notify_link_state(struct i40e_pf *pf)
85{
86 int i;
87
88 for (i = 0; i < pf->num_alloc_vfs; i++)
89 i40e_vc_notify_vf_link_state(&pf->vf[i]);
90}
91
92/**
93 * i40e_vc_notify_reset
94 * @pf: pointer to the PF structure
95 *
96 * indicate a pending reset to all VFs on a given PF
97 **/
98void i40e_vc_notify_reset(struct i40e_pf *pf)
99{
100 struct virtchnl_pf_event pfe;
101
102 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
103 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
104 i40e_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, 0,
105 (u8 *)&pfe, sizeof(struct virtchnl_pf_event));
106}
107
108/**
109 * i40e_vc_notify_vf_reset
110 * @vf: pointer to the VF structure
111 *
112 * indicate a pending reset to the given VF
113 **/
114void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
115{
116 struct virtchnl_pf_event pfe;
117 int abs_vf_id;
118
119 /* validate the request */
120 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
121 return;
122
123 /* verify if the VF is in either init or active before proceeding */
124 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
125 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
126 return;
127
128 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id;
129
130 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
131 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
132 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, VIRTCHNL_OP_EVENT,
133 0, (u8 *)&pfe,
134 sizeof(struct virtchnl_pf_event), NULL);
135}
136/***********************misc routines*****************************/
137
138/**
139 * i40e_vc_disable_vf
140 * @vf: pointer to the VF info
141 *
142 * Disable the VF through a SW reset.
143 **/
144static inline void i40e_vc_disable_vf(struct i40e_vf *vf)
145{
146 int i;
147
148 i40e_vc_notify_vf_reset(vf);
149
150 /* We want to ensure that an actual reset occurs initiated after this
151 * function was called. However, we do not want to wait forever, so
152 * we'll give a reasonable time and print a message if we failed to
153 * ensure a reset.
154 */
155 for (i = 0; i < 20; i++) {
156 if (i40e_reset_vf(vf, false))
157 return;
158 usleep_range(10000, 20000);
159 }
160
161 dev_warn(&vf->pf->pdev->dev,
162 "Failed to initiate reset for VF %d after 200 milliseconds\n",
163 vf->vf_id);
164}
165
166/**
167 * i40e_vc_isvalid_vsi_id
168 * @vf: pointer to the VF info
169 * @vsi_id: VF relative VSI id
170 *
171 * check for the valid VSI id
172 **/
173static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
174{
175 struct i40e_pf *pf = vf->pf;
176 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
177
178 return (vsi && (vsi->vf_id == vf->vf_id));
179}
180
181/**
182 * i40e_vc_isvalid_queue_id
183 * @vf: pointer to the VF info
184 * @vsi_id: vsi id
185 * @qid: vsi relative queue id
186 *
187 * check for the valid queue id
188 **/
189static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
190 u16 qid)
191{
192 struct i40e_pf *pf = vf->pf;
193 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
194
195 return (vsi && (qid < vsi->alloc_queue_pairs));
196}
197
198/**
199 * i40e_vc_isvalid_vector_id
200 * @vf: pointer to the VF info
201 * @vector_id: VF relative vector id
202 *
203 * check for the valid vector id
204 **/
205static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id)
206{
207 struct i40e_pf *pf = vf->pf;
208
209 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
210}
211
212/***********************vf resource mgmt routines*****************/
213
214/**
215 * i40e_vc_get_pf_queue_id
216 * @vf: pointer to the VF info
217 * @vsi_id: id of VSI as provided by the FW
218 * @vsi_queue_id: vsi relative queue id
219 *
220 * return PF relative queue id
221 **/
222static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
223 u8 vsi_queue_id)
224{
225 struct i40e_pf *pf = vf->pf;
226 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
227 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
228
229 if (!vsi)
230 return pf_queue_id;
231
232 if (le16_to_cpu(vsi->info.mapping_flags) &
233 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
234 pf_queue_id =
235 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
236 else
237 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
238 vsi_queue_id;
239
240 return pf_queue_id;
241}
242
243/**
244 * i40e_get_real_pf_qid
245 * @vf: pointer to the VF info
246 * @vsi_id: vsi id
247 * @queue_id: queue number
248 *
249 * wrapper function to get pf_queue_id handling ADq code as well
250 **/
251static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id)
252{
253 int i;
254
255 if (vf->adq_enabled) {
256 /* Although VF considers all the queues(can be 1 to 16) as its
257 * own but they may actually belong to different VSIs(up to 4).
258 * We need to find which queues belongs to which VSI.
259 */
260 for (i = 0; i < vf->num_tc; i++) {
261 if (queue_id < vf->ch[i].num_qps) {
262 vsi_id = vf->ch[i].vsi_id;
263 break;
264 }
265 /* find right queue id which is relative to a
266 * given VSI.
267 */
268 queue_id -= vf->ch[i].num_qps;
269 }
270 }
271
272 return i40e_vc_get_pf_queue_id(vf, vsi_id, queue_id);
273}
274
275/**
276 * i40e_config_irq_link_list
277 * @vf: pointer to the VF info
278 * @vsi_id: id of VSI as given by the FW
279 * @vecmap: irq map info
280 *
281 * configure irq link list from the map
282 **/
283static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
284 struct virtchnl_vector_map *vecmap)
285{
286 unsigned long linklistmap = 0, tempmap;
287 struct i40e_pf *pf = vf->pf;
288 struct i40e_hw *hw = &pf->hw;
289 u16 vsi_queue_id, pf_queue_id;
290 enum i40e_queue_type qtype;
291 u16 next_q, vector_id, size;
292 u32 reg, reg_idx;
293 u16 itr_idx = 0;
294
295 vector_id = vecmap->vector_id;
296 /* setup the head */
297 if (0 == vector_id)
298 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
299 else
300 reg_idx = I40E_VPINT_LNKLSTN(
301 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
302 (vector_id - 1));
303
304 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
305 /* Special case - No queues mapped on this vector */
306 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
307 goto irq_list_done;
308 }
309 tempmap = vecmap->rxq_map;
310 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
311 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
312 vsi_queue_id));
313 }
314
315 tempmap = vecmap->txq_map;
316 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
317 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
318 vsi_queue_id + 1));
319 }
320
321 size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES;
322 next_q = find_first_bit(&linklistmap, size);
323 if (unlikely(next_q == size))
324 goto irq_list_done;
325
326 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
327 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
328 pf_queue_id = i40e_get_real_pf_qid(vf, vsi_id, vsi_queue_id);
329 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
330
331 wr32(hw, reg_idx, reg);
332
333 while (next_q < size) {
334 switch (qtype) {
335 case I40E_QUEUE_TYPE_RX:
336 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
337 itr_idx = vecmap->rxitr_idx;
338 break;
339 case I40E_QUEUE_TYPE_TX:
340 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
341 itr_idx = vecmap->txitr_idx;
342 break;
343 default:
344 break;
345 }
346
347 next_q = find_next_bit(&linklistmap, size, next_q + 1);
348 if (next_q < size) {
349 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
350 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
351 pf_queue_id = i40e_get_real_pf_qid(vf,
352 vsi_id,
353 vsi_queue_id);
354 } else {
355 pf_queue_id = I40E_QUEUE_END_OF_LIST;
356 qtype = 0;
357 }
358
359 /* format for the RQCTL & TQCTL regs is same */
360 reg = (vector_id) |
361 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
362 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
363 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
364 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
365 wr32(hw, reg_idx, reg);
366 }
367
368 /* if the vf is running in polling mode and using interrupt zero,
369 * need to disable auto-mask on enabling zero interrupt for VFs.
370 */
371 if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
372 (vector_id == 0)) {
373 reg = rd32(hw, I40E_GLINT_CTL);
374 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {
375 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;
376 wr32(hw, I40E_GLINT_CTL, reg);
377 }
378 }
379
380irq_list_done:
381 i40e_flush(hw);
382}
383
384/**
385 * i40e_release_iwarp_qvlist
386 * @vf: pointer to the VF.
387 *
388 **/
389static void i40e_release_iwarp_qvlist(struct i40e_vf *vf)
390{
391 struct i40e_pf *pf = vf->pf;
392 struct virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info;
393 u32 msix_vf;
394 u32 i;
395
396 if (!vf->qvlist_info)
397 return;
398
399 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
400 for (i = 0; i < qvlist_info->num_vectors; i++) {
401 struct virtchnl_iwarp_qv_info *qv_info;
402 u32 next_q_index, next_q_type;
403 struct i40e_hw *hw = &pf->hw;
404 u32 v_idx, reg_idx, reg;
405
406 qv_info = &qvlist_info->qv_info[i];
407 if (!qv_info)
408 continue;
409 v_idx = qv_info->v_idx;
410 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
411 /* Figure out the queue after CEQ and make that the
412 * first queue.
413 */
414 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
415 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
416 next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK)
417 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT;
418 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK)
419 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT;
420
421 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
422 reg = (next_q_index &
423 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
424 (next_q_type <<
425 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
426
427 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
428 }
429 }
430 kfree(vf->qvlist_info);
431 vf->qvlist_info = NULL;
432}
433
434/**
435 * i40e_config_iwarp_qvlist
436 * @vf: pointer to the VF info
437 * @qvlist_info: queue and vector list
438 *
439 * Return 0 on success or < 0 on error
440 **/
441static int i40e_config_iwarp_qvlist(struct i40e_vf *vf,
442 struct virtchnl_iwarp_qvlist_info *qvlist_info)
443{
444 struct i40e_pf *pf = vf->pf;
445 struct i40e_hw *hw = &pf->hw;
446 struct virtchnl_iwarp_qv_info *qv_info;
447 u32 v_idx, i, reg_idx, reg;
448 u32 next_q_idx, next_q_type;
449 u32 msix_vf;
450 int ret = 0;
451
452 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
453
454 if (qvlist_info->num_vectors > msix_vf) {
455 dev_warn(&pf->pdev->dev,
456 "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n",
457 qvlist_info->num_vectors,
458 msix_vf);
459 ret = -EINVAL;
460 goto err_out;
461 }
462
463 kfree(vf->qvlist_info);
464 vf->qvlist_info = kzalloc(struct_size(vf->qvlist_info, qv_info,
465 qvlist_info->num_vectors - 1),
466 GFP_KERNEL);
467 if (!vf->qvlist_info) {
468 ret = -ENOMEM;
469 goto err_out;
470 }
471 vf->qvlist_info->num_vectors = qvlist_info->num_vectors;
472
473 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
474 for (i = 0; i < qvlist_info->num_vectors; i++) {
475 qv_info = &qvlist_info->qv_info[i];
476 if (!qv_info)
477 continue;
478
479 /* Validate vector id belongs to this vf */
480 if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) {
481 ret = -EINVAL;
482 goto err_free;
483 }
484
485 v_idx = qv_info->v_idx;
486
487 vf->qvlist_info->qv_info[i] = *qv_info;
488
489 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
490 /* We might be sharing the interrupt, so get the first queue
491 * index and type, push it down the list by adding the new
492 * queue on top. Also link it with the new queue in CEQCTL.
493 */
494 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
495 next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >>
496 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT);
497 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >>
498 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
499
500 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
501 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
502 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |
503 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |
504 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |
505 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |
506 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));
507 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);
508
509 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
510 reg = (qv_info->ceq_idx &
511 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
512 (I40E_QUEUE_TYPE_PE_CEQ <<
513 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
514 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
515 }
516
517 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
518 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |
519 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |
520 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));
521
522 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);
523 }
524 }
525
526 return 0;
527err_free:
528 kfree(vf->qvlist_info);
529 vf->qvlist_info = NULL;
530err_out:
531 return ret;
532}
533
534/**
535 * i40e_config_vsi_tx_queue
536 * @vf: pointer to the VF info
537 * @vsi_id: id of VSI as provided by the FW
538 * @vsi_queue_id: vsi relative queue index
539 * @info: config. info
540 *
541 * configure tx queue
542 **/
543static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
544 u16 vsi_queue_id,
545 struct virtchnl_txq_info *info)
546{
547 struct i40e_pf *pf = vf->pf;
548 struct i40e_hw *hw = &pf->hw;
549 struct i40e_hmc_obj_txq tx_ctx;
550 struct i40e_vsi *vsi;
551 u16 pf_queue_id;
552 u32 qtx_ctl;
553 int ret = 0;
554
555 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
556 ret = -ENOENT;
557 goto error_context;
558 }
559 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
560 vsi = i40e_find_vsi_from_id(pf, vsi_id);
561 if (!vsi) {
562 ret = -ENOENT;
563 goto error_context;
564 }
565
566 /* clear the context structure first */
567 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
568
569 /* only set the required fields */
570 tx_ctx.base = info->dma_ring_addr / 128;
571 tx_ctx.qlen = info->ring_len;
572 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
573 tx_ctx.rdylist_act = 0;
574 tx_ctx.head_wb_ena = info->headwb_enabled;
575 tx_ctx.head_wb_addr = info->dma_headwb_addr;
576
577 /* clear the context in the HMC */
578 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
579 if (ret) {
580 dev_err(&pf->pdev->dev,
581 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
582 pf_queue_id, ret);
583 ret = -ENOENT;
584 goto error_context;
585 }
586
587 /* set the context in the HMC */
588 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
589 if (ret) {
590 dev_err(&pf->pdev->dev,
591 "Failed to set VF LAN Tx queue context %d error: %d\n",
592 pf_queue_id, ret);
593 ret = -ENOENT;
594 goto error_context;
595 }
596
597 /* associate this queue with the PCI VF function */
598 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
599 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
600 & I40E_QTX_CTL_PF_INDX_MASK);
601 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
602 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
603 & I40E_QTX_CTL_VFVM_INDX_MASK);
604 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
605 i40e_flush(hw);
606
607error_context:
608 return ret;
609}
610
611/**
612 * i40e_config_vsi_rx_queue
613 * @vf: pointer to the VF info
614 * @vsi_id: id of VSI as provided by the FW
615 * @vsi_queue_id: vsi relative queue index
616 * @info: config. info
617 *
618 * configure rx queue
619 **/
620static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
621 u16 vsi_queue_id,
622 struct virtchnl_rxq_info *info)
623{
624 struct i40e_pf *pf = vf->pf;
625 struct i40e_hw *hw = &pf->hw;
626 struct i40e_hmc_obj_rxq rx_ctx;
627 u16 pf_queue_id;
628 int ret = 0;
629
630 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
631
632 /* clear the context structure first */
633 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
634
635 /* only set the required fields */
636 rx_ctx.base = info->dma_ring_addr / 128;
637 rx_ctx.qlen = info->ring_len;
638
639 if (info->splithdr_enabled) {
640 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
641 I40E_RX_SPLIT_IP |
642 I40E_RX_SPLIT_TCP_UDP |
643 I40E_RX_SPLIT_SCTP;
644 /* header length validation */
645 if (info->hdr_size > ((2 * 1024) - 64)) {
646 ret = -EINVAL;
647 goto error_param;
648 }
649 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
650
651 /* set split mode 10b */
652 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;
653 }
654
655 /* databuffer length validation */
656 if (info->databuffer_size > ((16 * 1024) - 128)) {
657 ret = -EINVAL;
658 goto error_param;
659 }
660 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
661
662 /* max pkt. length validation */
663 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
664 ret = -EINVAL;
665 goto error_param;
666 }
667 rx_ctx.rxmax = info->max_pkt_size;
668
669 /* enable 32bytes desc always */
670 rx_ctx.dsize = 1;
671
672 /* default values */
673 rx_ctx.lrxqthresh = 1;
674 rx_ctx.crcstrip = 1;
675 rx_ctx.prefena = 1;
676 rx_ctx.l2tsel = 1;
677
678 /* clear the context in the HMC */
679 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
680 if (ret) {
681 dev_err(&pf->pdev->dev,
682 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
683 pf_queue_id, ret);
684 ret = -ENOENT;
685 goto error_param;
686 }
687
688 /* set the context in the HMC */
689 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
690 if (ret) {
691 dev_err(&pf->pdev->dev,
692 "Failed to set VF LAN Rx queue context %d error: %d\n",
693 pf_queue_id, ret);
694 ret = -ENOENT;
695 goto error_param;
696 }
697
698error_param:
699 return ret;
700}
701
702/**
703 * i40e_alloc_vsi_res
704 * @vf: pointer to the VF info
705 * @idx: VSI index, applies only for ADq mode, zero otherwise
706 *
707 * alloc VF vsi context & resources
708 **/
709static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx)
710{
711 struct i40e_mac_filter *f = NULL;
712 struct i40e_pf *pf = vf->pf;
713 struct i40e_vsi *vsi;
714 u64 max_tx_rate = 0;
715 int ret = 0;
716
717 vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid,
718 vf->vf_id);
719
720 if (!vsi) {
721 dev_err(&pf->pdev->dev,
722 "add vsi failed for VF %d, aq_err %d\n",
723 vf->vf_id, pf->hw.aq.asq_last_status);
724 ret = -ENOENT;
725 goto error_alloc_vsi_res;
726 }
727
728 if (!idx) {
729 u64 hena = i40e_pf_get_default_rss_hena(pf);
730 u8 broadcast[ETH_ALEN];
731
732 vf->lan_vsi_idx = vsi->idx;
733 vf->lan_vsi_id = vsi->id;
734 /* If the port VLAN has been configured and then the
735 * VF driver was removed then the VSI port VLAN
736 * configuration was destroyed. Check if there is
737 * a port VLAN and restore the VSI configuration if
738 * needed.
739 */
740 if (vf->port_vlan_id)
741 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
742
743 spin_lock_bh(&vsi->mac_filter_hash_lock);
744 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
745 f = i40e_add_mac_filter(vsi,
746 vf->default_lan_addr.addr);
747 if (!f)
748 dev_info(&pf->pdev->dev,
749 "Could not add MAC filter %pM for VF %d\n",
750 vf->default_lan_addr.addr, vf->vf_id);
751 }
752 eth_broadcast_addr(broadcast);
753 f = i40e_add_mac_filter(vsi, broadcast);
754 if (!f)
755 dev_info(&pf->pdev->dev,
756 "Could not allocate VF broadcast filter\n");
757 spin_unlock_bh(&vsi->mac_filter_hash_lock);
758 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena);
759 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32));
760 /* program mac filter only for VF VSI */
761 ret = i40e_sync_vsi_filters(vsi);
762 if (ret)
763 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
764 }
765
766 /* storing VSI index and id for ADq and don't apply the mac filter */
767 if (vf->adq_enabled) {
768 vf->ch[idx].vsi_idx = vsi->idx;
769 vf->ch[idx].vsi_id = vsi->id;
770 }
771
772 /* Set VF bandwidth if specified */
773 if (vf->tx_rate) {
774 max_tx_rate = vf->tx_rate;
775 } else if (vf->ch[idx].max_tx_rate) {
776 max_tx_rate = vf->ch[idx].max_tx_rate;
777 }
778
779 if (max_tx_rate) {
780 max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR);
781 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
782 max_tx_rate, 0, NULL);
783 if (ret)
784 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
785 vf->vf_id, ret);
786 }
787
788error_alloc_vsi_res:
789 return ret;
790}
791
792/**
793 * i40e_map_pf_queues_to_vsi
794 * @vf: pointer to the VF info
795 *
796 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
797 * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI.
798 **/
799static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf)
800{
801 struct i40e_pf *pf = vf->pf;
802 struct i40e_hw *hw = &pf->hw;
803 u32 reg, num_tc = 1; /* VF has at least one traffic class */
804 u16 vsi_id, qps;
805 int i, j;
806
807 if (vf->adq_enabled)
808 num_tc = vf->num_tc;
809
810 for (i = 0; i < num_tc; i++) {
811 if (vf->adq_enabled) {
812 qps = vf->ch[i].num_qps;
813 vsi_id = vf->ch[i].vsi_id;
814 } else {
815 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
816 vsi_id = vf->lan_vsi_id;
817 }
818
819 for (j = 0; j < 7; j++) {
820 if (j * 2 >= qps) {
821 /* end of list */
822 reg = 0x07FF07FF;
823 } else {
824 u16 qid = i40e_vc_get_pf_queue_id(vf,
825 vsi_id,
826 j * 2);
827 reg = qid;
828 qid = i40e_vc_get_pf_queue_id(vf, vsi_id,
829 (j * 2) + 1);
830 reg |= qid << 16;
831 }
832 i40e_write_rx_ctl(hw,
833 I40E_VSILAN_QTABLE(j, vsi_id),
834 reg);
835 }
836 }
837}
838
839/**
840 * i40e_map_pf_to_vf_queues
841 * @vf: pointer to the VF info
842 *
843 * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This
844 * function takes care of the second part VPLAN_QTABLE & completes VF mappings.
845 **/
846static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf)
847{
848 struct i40e_pf *pf = vf->pf;
849 struct i40e_hw *hw = &pf->hw;
850 u32 reg, total_qps = 0;
851 u32 qps, num_tc = 1; /* VF has at least one traffic class */
852 u16 vsi_id, qid;
853 int i, j;
854
855 if (vf->adq_enabled)
856 num_tc = vf->num_tc;
857
858 for (i = 0; i < num_tc; i++) {
859 if (vf->adq_enabled) {
860 qps = vf->ch[i].num_qps;
861 vsi_id = vf->ch[i].vsi_id;
862 } else {
863 qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
864 vsi_id = vf->lan_vsi_id;
865 }
866
867 for (j = 0; j < qps; j++) {
868 qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j);
869
870 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
871 wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id),
872 reg);
873 total_qps++;
874 }
875 }
876}
877
878/**
879 * i40e_enable_vf_mappings
880 * @vf: pointer to the VF info
881 *
882 * enable VF mappings
883 **/
884static void i40e_enable_vf_mappings(struct i40e_vf *vf)
885{
886 struct i40e_pf *pf = vf->pf;
887 struct i40e_hw *hw = &pf->hw;
888 u32 reg;
889
890 /* Tell the hardware we're using noncontiguous mapping. HW requires
891 * that VF queues be mapped using this method, even when they are
892 * contiguous in real life
893 */
894 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
895 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
896
897 /* enable VF vplan_qtable mappings */
898 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
899 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
900
901 i40e_map_pf_to_vf_queues(vf);
902 i40e_map_pf_queues_to_vsi(vf);
903
904 i40e_flush(hw);
905}
906
907/**
908 * i40e_disable_vf_mappings
909 * @vf: pointer to the VF info
910 *
911 * disable VF mappings
912 **/
913static void i40e_disable_vf_mappings(struct i40e_vf *vf)
914{
915 struct i40e_pf *pf = vf->pf;
916 struct i40e_hw *hw = &pf->hw;
917 int i;
918
919 /* disable qp mappings */
920 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
921 for (i = 0; i < I40E_MAX_VSI_QP; i++)
922 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
923 I40E_QUEUE_END_OF_LIST);
924 i40e_flush(hw);
925}
926
927/**
928 * i40e_free_vf_res
929 * @vf: pointer to the VF info
930 *
931 * free VF resources
932 **/
933static void i40e_free_vf_res(struct i40e_vf *vf)
934{
935 struct i40e_pf *pf = vf->pf;
936 struct i40e_hw *hw = &pf->hw;
937 u32 reg_idx, reg;
938 int i, j, msix_vf;
939
940 /* Start by disabling VF's configuration API to prevent the OS from
941 * accessing the VF's VSI after it's freed / invalidated.
942 */
943 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
944
945 /* It's possible the VF had requeuested more queues than the default so
946 * do the accounting here when we're about to free them.
947 */
948 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) {
949 pf->queues_left += vf->num_queue_pairs -
950 I40E_DEFAULT_QUEUES_PER_VF;
951 }
952
953 /* free vsi & disconnect it from the parent uplink */
954 if (vf->lan_vsi_idx) {
955 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
956 vf->lan_vsi_idx = 0;
957 vf->lan_vsi_id = 0;
958 }
959
960 /* do the accounting and remove additional ADq VSI's */
961 if (vf->adq_enabled && vf->ch[0].vsi_idx) {
962 for (j = 0; j < vf->num_tc; j++) {
963 /* At this point VSI0 is already released so don't
964 * release it again and only clear their values in
965 * structure variables
966 */
967 if (j)
968 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]);
969 vf->ch[j].vsi_idx = 0;
970 vf->ch[j].vsi_id = 0;
971 }
972 }
973 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
974
975 /* disable interrupts so the VF starts in a known state */
976 for (i = 0; i < msix_vf; i++) {
977 /* format is same for both registers */
978 if (0 == i)
979 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
980 else
981 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
982 (vf->vf_id))
983 + (i - 1));
984 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
985 i40e_flush(hw);
986 }
987
988 /* clear the irq settings */
989 for (i = 0; i < msix_vf; i++) {
990 /* format is same for both registers */
991 if (0 == i)
992 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
993 else
994 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
995 (vf->vf_id))
996 + (i - 1));
997 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
998 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
999 wr32(hw, reg_idx, reg);
1000 i40e_flush(hw);
1001 }
1002 /* reset some of the state variables keeping track of the resources */
1003 vf->num_queue_pairs = 0;
1004 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
1005 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
1006}
1007
1008/**
1009 * i40e_alloc_vf_res
1010 * @vf: pointer to the VF info
1011 *
1012 * allocate VF resources
1013 **/
1014static int i40e_alloc_vf_res(struct i40e_vf *vf)
1015{
1016 struct i40e_pf *pf = vf->pf;
1017 int total_queue_pairs = 0;
1018 int ret, idx;
1019
1020 if (vf->num_req_queues &&
1021 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF)
1022 pf->num_vf_qps = vf->num_req_queues;
1023 else
1024 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF;
1025
1026 /* allocate hw vsi context & associated resources */
1027 ret = i40e_alloc_vsi_res(vf, 0);
1028 if (ret)
1029 goto error_alloc;
1030 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
1031
1032 /* allocate additional VSIs based on tc information for ADq */
1033 if (vf->adq_enabled) {
1034 if (pf->queues_left >=
1035 (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) {
1036 /* TC 0 always belongs to VF VSI */
1037 for (idx = 1; idx < vf->num_tc; idx++) {
1038 ret = i40e_alloc_vsi_res(vf, idx);
1039 if (ret)
1040 goto error_alloc;
1041 }
1042 /* send correct number of queues */
1043 total_queue_pairs = I40E_MAX_VF_QUEUES;
1044 } else {
1045 dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n",
1046 vf->vf_id);
1047 vf->adq_enabled = false;
1048 }
1049 }
1050
1051 /* We account for each VF to get a default number of queue pairs. If
1052 * the VF has now requested more, we need to account for that to make
1053 * certain we never request more queues than we actually have left in
1054 * HW.
1055 */
1056 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF)
1057 pf->queues_left -=
1058 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF;
1059
1060 if (vf->trusted)
1061 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1062 else
1063 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1064
1065 /* store the total qps number for the runtime
1066 * VF req validation
1067 */
1068 vf->num_queue_pairs = total_queue_pairs;
1069
1070 /* VF is now completely initialized */
1071 set_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1072
1073error_alloc:
1074 if (ret)
1075 i40e_free_vf_res(vf);
1076
1077 return ret;
1078}
1079
1080#define VF_DEVICE_STATUS 0xAA
1081#define VF_TRANS_PENDING_MASK 0x20
1082/**
1083 * i40e_quiesce_vf_pci
1084 * @vf: pointer to the VF structure
1085 *
1086 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
1087 * if the transactions never clear.
1088 **/
1089static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
1090{
1091 struct i40e_pf *pf = vf->pf;
1092 struct i40e_hw *hw = &pf->hw;
1093 int vf_abs_id, i;
1094 u32 reg;
1095
1096 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
1097
1098 wr32(hw, I40E_PF_PCI_CIAA,
1099 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
1100 for (i = 0; i < 100; i++) {
1101 reg = rd32(hw, I40E_PF_PCI_CIAD);
1102 if ((reg & VF_TRANS_PENDING_MASK) == 0)
1103 return 0;
1104 udelay(1);
1105 }
1106 return -EIO;
1107}
1108
1109/**
1110 * i40e_getnum_vf_vsi_vlan_filters
1111 * @vsi: pointer to the vsi
1112 *
1113 * called to get the number of VLANs offloaded on this VF
1114 **/
1115static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1116{
1117 struct i40e_mac_filter *f;
1118 u16 num_vlans = 0, bkt;
1119
1120 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1121 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
1122 num_vlans++;
1123 }
1124
1125 return num_vlans;
1126}
1127
1128/**
1129 * i40e_get_vlan_list_sync
1130 * @vsi: pointer to the VSI
1131 * @num_vlans: number of VLANs in mac_filter_hash, returned to caller
1132 * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller.
1133 * This array is allocated here, but has to be freed in caller.
1134 *
1135 * Called to get number of VLANs and VLAN list present in mac_filter_hash.
1136 **/
1137static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, u16 *num_vlans,
1138 s16 **vlan_list)
1139{
1140 struct i40e_mac_filter *f;
1141 int i = 0;
1142 int bkt;
1143
1144 spin_lock_bh(&vsi->mac_filter_hash_lock);
1145 *num_vlans = i40e_getnum_vf_vsi_vlan_filters(vsi);
1146 *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC);
1147 if (!(*vlan_list))
1148 goto err;
1149
1150 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1151 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1152 continue;
1153 (*vlan_list)[i++] = f->vlan;
1154 }
1155err:
1156 spin_unlock_bh(&vsi->mac_filter_hash_lock);
1157}
1158
1159/**
1160 * i40e_set_vsi_promisc
1161 * @vf: pointer to the VF struct
1162 * @seid: VSI number
1163 * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable
1164 * for a given VLAN
1165 * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable
1166 * for a given VLAN
1167 * @vl: List of VLANs - apply filter for given VLANs
1168 * @num_vlans: Number of elements in @vl
1169 **/
1170static i40e_status
1171i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable,
1172 bool unicast_enable, s16 *vl, u16 num_vlans)
1173{
1174 i40e_status aq_ret, aq_tmp = 0;
1175 struct i40e_pf *pf = vf->pf;
1176 struct i40e_hw *hw = &pf->hw;
1177 int i;
1178
1179 /* No VLAN to set promisc on, set on VSI */
1180 if (!num_vlans || !vl) {
1181 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid,
1182 multi_enable,
1183 NULL);
1184 if (aq_ret) {
1185 int aq_err = pf->hw.aq.asq_last_status;
1186
1187 dev_err(&pf->pdev->dev,
1188 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
1189 vf->vf_id,
1190 i40e_stat_str(&pf->hw, aq_ret),
1191 i40e_aq_str(&pf->hw, aq_err));
1192
1193 return aq_ret;
1194 }
1195
1196 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid,
1197 unicast_enable,
1198 NULL, true);
1199
1200 if (aq_ret) {
1201 int aq_err = pf->hw.aq.asq_last_status;
1202
1203 dev_err(&pf->pdev->dev,
1204 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n",
1205 vf->vf_id,
1206 i40e_stat_str(&pf->hw, aq_ret),
1207 i40e_aq_str(&pf->hw, aq_err));
1208 }
1209
1210 return aq_ret;
1211 }
1212
1213 for (i = 0; i < num_vlans; i++) {
1214 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid,
1215 multi_enable,
1216 vl[i], NULL);
1217 if (aq_ret) {
1218 int aq_err = pf->hw.aq.asq_last_status;
1219
1220 dev_err(&pf->pdev->dev,
1221 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
1222 vf->vf_id,
1223 i40e_stat_str(&pf->hw, aq_ret),
1224 i40e_aq_str(&pf->hw, aq_err));
1225
1226 if (!aq_tmp)
1227 aq_tmp = aq_ret;
1228 }
1229
1230 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid,
1231 unicast_enable,
1232 vl[i], NULL);
1233 if (aq_ret) {
1234 int aq_err = pf->hw.aq.asq_last_status;
1235
1236 dev_err(&pf->pdev->dev,
1237 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n",
1238 vf->vf_id,
1239 i40e_stat_str(&pf->hw, aq_ret),
1240 i40e_aq_str(&pf->hw, aq_err));
1241
1242 if (!aq_tmp)
1243 aq_tmp = aq_ret;
1244 }
1245 }
1246
1247 if (aq_tmp)
1248 aq_ret = aq_tmp;
1249
1250 return aq_ret;
1251}
1252
1253/**
1254 * i40e_config_vf_promiscuous_mode
1255 * @vf: pointer to the VF info
1256 * @vsi_id: VSI id
1257 * @allmulti: set MAC L2 layer multicast promiscuous enable/disable
1258 * @alluni: set MAC L2 layer unicast promiscuous enable/disable
1259 *
1260 * Called from the VF to configure the promiscuous mode of
1261 * VF vsis and from the VF reset path to reset promiscuous mode.
1262 **/
1263static i40e_status i40e_config_vf_promiscuous_mode(struct i40e_vf *vf,
1264 u16 vsi_id,
1265 bool allmulti,
1266 bool alluni)
1267{
1268 i40e_status aq_ret = I40E_SUCCESS;
1269 struct i40e_pf *pf = vf->pf;
1270 struct i40e_vsi *vsi;
1271 u16 num_vlans;
1272 s16 *vl;
1273
1274 vsi = i40e_find_vsi_from_id(pf, vsi_id);
1275 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi)
1276 return I40E_ERR_PARAM;
1277
1278 if (vf->port_vlan_id) {
1279 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti,
1280 alluni, &vf->port_vlan_id, 1);
1281 return aq_ret;
1282 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1283 i40e_get_vlan_list_sync(vsi, &num_vlans, &vl);
1284
1285 if (!vl)
1286 return I40E_ERR_NO_MEMORY;
1287
1288 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
1289 vl, num_vlans);
1290 kfree(vl);
1291 return aq_ret;
1292 }
1293
1294 /* no VLANs to set on, set on VSI */
1295 aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni,
1296 NULL, 0);
1297 return aq_ret;
1298}
1299
1300/**
1301 * i40e_trigger_vf_reset
1302 * @vf: pointer to the VF structure
1303 * @flr: VFLR was issued or not
1304 *
1305 * Trigger hardware to start a reset for a particular VF. Expects the caller
1306 * to wait the proper amount of time to allow hardware to reset the VF before
1307 * it cleans up and restores VF functionality.
1308 **/
1309static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
1310{
1311 struct i40e_pf *pf = vf->pf;
1312 struct i40e_hw *hw = &pf->hw;
1313 u32 reg, reg_idx, bit_idx;
1314
1315 /* warn the VF */
1316 clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1317
1318 /* Disable VF's configuration API during reset. The flag is re-enabled
1319 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.
1320 * It's normally disabled in i40e_free_vf_res(), but it's safer
1321 * to do it earlier to give some time to finish to any VF config
1322 * functions that may still be running at this point.
1323 */
1324 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1325
1326 /* In the case of a VFLR, the HW has already reset the VF and we
1327 * just need to clean up, so don't hit the VFRTRIG register.
1328 */
1329 if (!flr) {
1330 /* reset VF using VPGEN_VFRTRIG reg */
1331 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1332 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1333 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1334 i40e_flush(hw);
1335 }
1336 /* clear the VFLR bit in GLGEN_VFLRSTAT */
1337 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
1338 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
1339 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1340 i40e_flush(hw);
1341
1342 if (i40e_quiesce_vf_pci(vf))
1343 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
1344 vf->vf_id);
1345}
1346
1347/**
1348 * i40e_cleanup_reset_vf
1349 * @vf: pointer to the VF structure
1350 *
1351 * Cleanup a VF after the hardware reset is finished. Expects the caller to
1352 * have verified whether the reset is finished properly, and ensure the
1353 * minimum amount of wait time has passed.
1354 **/
1355static void i40e_cleanup_reset_vf(struct i40e_vf *vf)
1356{
1357 struct i40e_pf *pf = vf->pf;
1358 struct i40e_hw *hw = &pf->hw;
1359 u32 reg;
1360
1361 /* disable promisc modes in case they were enabled */
1362 i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false);
1363
1364 /* free VF resources to begin resetting the VSI state */
1365 i40e_free_vf_res(vf);
1366
1367 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg.
1368 * By doing this we allow HW to access VF memory at any point. If we
1369 * did it any sooner, HW could access memory while it was being freed
1370 * in i40e_free_vf_res(), causing an IOMMU fault.
1371 *
1372 * On the other hand, this needs to be done ASAP, because the VF driver
1373 * is waiting for this to happen and may report a timeout. It's
1374 * harmless, but it gets logged into Guest OS kernel log, so best avoid
1375 * it.
1376 */
1377 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1378 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1379 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1380
1381 /* reallocate VF resources to finish resetting the VSI state */
1382 if (!i40e_alloc_vf_res(vf)) {
1383 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1384 i40e_enable_vf_mappings(vf);
1385 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1386 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1387 /* Do not notify the client during VF init */
1388 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE,
1389 &vf->vf_states))
1390 i40e_notify_client_of_vf_reset(pf, abs_vf_id);
1391 vf->num_vlan = 0;
1392 }
1393
1394 /* Tell the VF driver the reset is done. This needs to be done only
1395 * after VF has been fully initialized, because the VF driver may
1396 * request resources immediately after setting this flag.
1397 */
1398 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
1399}
1400
1401/**
1402 * i40e_reset_vf
1403 * @vf: pointer to the VF structure
1404 * @flr: VFLR was issued or not
1405 *
1406 * Returns true if the VF is reset, false otherwise.
1407 **/
1408bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
1409{
1410 struct i40e_pf *pf = vf->pf;
1411 struct i40e_hw *hw = &pf->hw;
1412 bool rsd = false;
1413 u32 reg;
1414 int i;
1415
1416 /* If the VFs have been disabled, this means something else is
1417 * resetting the VF, so we shouldn't continue.
1418 */
1419 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1420 return false;
1421
1422 i40e_trigger_vf_reset(vf, flr);
1423
1424 /* poll VPGEN_VFRSTAT reg to make sure
1425 * that reset is complete
1426 */
1427 for (i = 0; i < 10; i++) {
1428 /* VF reset requires driver to first reset the VF and then
1429 * poll the status register to make sure that the reset
1430 * completed successfully. Due to internal HW FIFO flushes,
1431 * we must wait 10ms before the register will be valid.
1432 */
1433 usleep_range(10000, 20000);
1434 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1435 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
1436 rsd = true;
1437 break;
1438 }
1439 }
1440
1441 if (flr)
1442 usleep_range(10000, 20000);
1443
1444 if (!rsd)
1445 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1446 vf->vf_id);
1447 usleep_range(10000, 20000);
1448
1449 /* On initial reset, we don't have any queues to disable */
1450 if (vf->lan_vsi_idx != 0)
1451 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1452
1453 i40e_cleanup_reset_vf(vf);
1454
1455 i40e_flush(hw);
1456 clear_bit(__I40E_VF_DISABLE, pf->state);
1457
1458 return true;
1459}
1460
1461/**
1462 * i40e_reset_all_vfs
1463 * @pf: pointer to the PF structure
1464 * @flr: VFLR was issued or not
1465 *
1466 * Reset all allocated VFs in one go. First, tell the hardware to reset each
1467 * VF, then do all the waiting in one chunk, and finally finish restoring each
1468 * VF after the wait. This is useful during PF routines which need to reset
1469 * all VFs, as otherwise it must perform these resets in a serialized fashion.
1470 *
1471 * Returns true if any VFs were reset, and false otherwise.
1472 **/
1473bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
1474{
1475 struct i40e_hw *hw = &pf->hw;
1476 struct i40e_vf *vf;
1477 int i, v;
1478 u32 reg;
1479
1480 /* If we don't have any VFs, then there is nothing to reset */
1481 if (!pf->num_alloc_vfs)
1482 return false;
1483
1484 /* If VFs have been disabled, there is no need to reset */
1485 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1486 return false;
1487
1488 /* Begin reset on all VFs at once */
1489 for (v = 0; v < pf->num_alloc_vfs; v++)
1490 i40e_trigger_vf_reset(&pf->vf[v], flr);
1491
1492 /* HW requires some time to make sure it can flush the FIFO for a VF
1493 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
1494 * sequence to make sure that it has completed. We'll keep track of
1495 * the VFs using a simple iterator that increments once that VF has
1496 * finished resetting.
1497 */
1498 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) {
1499 usleep_range(10000, 20000);
1500
1501 /* Check each VF in sequence, beginning with the VF to fail
1502 * the previous check.
1503 */
1504 while (v < pf->num_alloc_vfs) {
1505 vf = &pf->vf[v];
1506 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1507 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))
1508 break;
1509
1510 /* If the current VF has finished resetting, move on
1511 * to the next VF in sequence.
1512 */
1513 v++;
1514 }
1515 }
1516
1517 if (flr)
1518 usleep_range(10000, 20000);
1519
1520 /* Display a warning if at least one VF didn't manage to reset in
1521 * time, but continue on with the operation.
1522 */
1523 if (v < pf->num_alloc_vfs)
1524 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1525 pf->vf[v].vf_id);
1526 usleep_range(10000, 20000);
1527
1528 /* Begin disabling all the rings associated with VFs, but do not wait
1529 * between each VF.
1530 */
1531 for (v = 0; v < pf->num_alloc_vfs; v++) {
1532 /* On initial reset, we don't have any queues to disable */
1533 if (pf->vf[v].lan_vsi_idx == 0)
1534 continue;
1535
1536 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]);
1537 }
1538
1539 /* Now that we've notified HW to disable all of the VF rings, wait
1540 * until they finish.
1541 */
1542 for (v = 0; v < pf->num_alloc_vfs; v++) {
1543 /* On initial reset, we don't have any queues to disable */
1544 if (pf->vf[v].lan_vsi_idx == 0)
1545 continue;
1546
1547 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]);
1548 }
1549
1550 /* Hw may need up to 50ms to finish disabling the RX queues. We
1551 * minimize the wait by delaying only once for all VFs.
1552 */
1553 mdelay(50);
1554
1555 /* Finish the reset on each VF */
1556 for (v = 0; v < pf->num_alloc_vfs; v++)
1557 i40e_cleanup_reset_vf(&pf->vf[v]);
1558
1559 i40e_flush(hw);
1560 clear_bit(__I40E_VF_DISABLE, pf->state);
1561
1562 return true;
1563}
1564
1565/**
1566 * i40e_free_vfs
1567 * @pf: pointer to the PF structure
1568 *
1569 * free VF resources
1570 **/
1571void i40e_free_vfs(struct i40e_pf *pf)
1572{
1573 struct i40e_hw *hw = &pf->hw;
1574 u32 reg_idx, bit_idx;
1575 int i, tmp, vf_id;
1576
1577 if (!pf->vf)
1578 return;
1579 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1580 usleep_range(1000, 2000);
1581
1582 i40e_notify_client_of_vf_enable(pf, 0);
1583
1584 /* Amortize wait time by stopping all VFs at the same time */
1585 for (i = 0; i < pf->num_alloc_vfs; i++) {
1586 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1587 continue;
1588
1589 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]);
1590 }
1591
1592 for (i = 0; i < pf->num_alloc_vfs; i++) {
1593 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1594 continue;
1595
1596 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]);
1597 }
1598
1599 /* Disable IOV before freeing resources. This lets any VF drivers
1600 * running in the host get themselves cleaned up before we yank
1601 * the carpet out from underneath their feet.
1602 */
1603 if (!pci_vfs_assigned(pf->pdev))
1604 pci_disable_sriov(pf->pdev);
1605 else
1606 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1607
1608 /* free up VF resources */
1609 tmp = pf->num_alloc_vfs;
1610 pf->num_alloc_vfs = 0;
1611 for (i = 0; i < tmp; i++) {
1612 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1613 i40e_free_vf_res(&pf->vf[i]);
1614 /* disable qp mappings */
1615 i40e_disable_vf_mappings(&pf->vf[i]);
1616 }
1617
1618 kfree(pf->vf);
1619 pf->vf = NULL;
1620
1621 /* This check is for when the driver is unloaded while VFs are
1622 * assigned. Setting the number of VFs to 0 through sysfs is caught
1623 * before this function ever gets called.
1624 */
1625 if (!pci_vfs_assigned(pf->pdev)) {
1626 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1627 * work correctly when SR-IOV gets re-enabled.
1628 */
1629 for (vf_id = 0; vf_id < tmp; vf_id++) {
1630 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1631 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1632 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1633 }
1634 }
1635 clear_bit(__I40E_VF_DISABLE, pf->state);
1636}
1637
1638#ifdef CONFIG_PCI_IOV
1639/**
1640 * i40e_alloc_vfs
1641 * @pf: pointer to the PF structure
1642 * @num_alloc_vfs: number of VFs to allocate
1643 *
1644 * allocate VF resources
1645 **/
1646int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1647{
1648 struct i40e_vf *vfs;
1649 int i, ret = 0;
1650
1651 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1652 i40e_irq_dynamic_disable_icr0(pf);
1653
1654 /* Check to see if we're just allocating resources for extant VFs */
1655 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1656 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1657 if (ret) {
1658 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1659 pf->num_alloc_vfs = 0;
1660 goto err_iov;
1661 }
1662 }
1663 /* allocate memory */
1664 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1665 if (!vfs) {
1666 ret = -ENOMEM;
1667 goto err_alloc;
1668 }
1669 pf->vf = vfs;
1670
1671 /* apply default profile */
1672 for (i = 0; i < num_alloc_vfs; i++) {
1673 vfs[i].pf = pf;
1674 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1675 vfs[i].vf_id = i;
1676
1677 /* assign default capabilities */
1678 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1679 vfs[i].spoofchk = true;
1680
1681 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states);
1682
1683 }
1684 pf->num_alloc_vfs = num_alloc_vfs;
1685
1686 /* VF resources get allocated during reset */
1687 i40e_reset_all_vfs(pf, false);
1688
1689 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1690
1691err_alloc:
1692 if (ret)
1693 i40e_free_vfs(pf);
1694err_iov:
1695 /* Re-enable interrupt 0. */
1696 i40e_irq_dynamic_enable_icr0(pf);
1697 return ret;
1698}
1699
1700#endif
1701/**
1702 * i40e_pci_sriov_enable
1703 * @pdev: pointer to a pci_dev structure
1704 * @num_vfs: number of VFs to allocate
1705 *
1706 * Enable or change the number of VFs
1707 **/
1708static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1709{
1710#ifdef CONFIG_PCI_IOV
1711 struct i40e_pf *pf = pci_get_drvdata(pdev);
1712 int pre_existing_vfs = pci_num_vf(pdev);
1713 int err = 0;
1714
1715 if (test_bit(__I40E_TESTING, pf->state)) {
1716 dev_warn(&pdev->dev,
1717 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1718 err = -EPERM;
1719 goto err_out;
1720 }
1721
1722 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1723 i40e_free_vfs(pf);
1724 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1725 goto out;
1726
1727 if (num_vfs > pf->num_req_vfs) {
1728 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1729 num_vfs, pf->num_req_vfs);
1730 err = -EPERM;
1731 goto err_out;
1732 }
1733
1734 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1735 err = i40e_alloc_vfs(pf, num_vfs);
1736 if (err) {
1737 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1738 goto err_out;
1739 }
1740
1741out:
1742 return num_vfs;
1743
1744err_out:
1745 return err;
1746#endif
1747 return 0;
1748}
1749
1750/**
1751 * i40e_pci_sriov_configure
1752 * @pdev: pointer to a pci_dev structure
1753 * @num_vfs: number of VFs to allocate
1754 *
1755 * Enable or change the number of VFs. Called when the user updates the number
1756 * of VFs in sysfs.
1757 **/
1758int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1759{
1760 struct i40e_pf *pf = pci_get_drvdata(pdev);
1761 int ret = 0;
1762
1763 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
1764 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n");
1765 return -EAGAIN;
1766 }
1767
1768 if (num_vfs) {
1769 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1770 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1771 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
1772 }
1773 ret = i40e_pci_sriov_enable(pdev, num_vfs);
1774 goto sriov_configure_out;
1775 }
1776
1777 if (!pci_vfs_assigned(pf->pdev)) {
1778 i40e_free_vfs(pf);
1779 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1780 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
1781 } else {
1782 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1783 ret = -EINVAL;
1784 goto sriov_configure_out;
1785 }
1786sriov_configure_out:
1787 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
1788 return ret;
1789}
1790
1791/***********************virtual channel routines******************/
1792
1793/**
1794 * i40e_vc_send_msg_to_vf
1795 * @vf: pointer to the VF info
1796 * @v_opcode: virtual channel opcode
1797 * @v_retval: virtual channel return value
1798 * @msg: pointer to the msg buffer
1799 * @msglen: msg length
1800 *
1801 * send msg to VF
1802 **/
1803static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1804 u32 v_retval, u8 *msg, u16 msglen)
1805{
1806 struct i40e_pf *pf;
1807 struct i40e_hw *hw;
1808 int abs_vf_id;
1809 i40e_status aq_ret;
1810
1811 /* validate the request */
1812 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1813 return -EINVAL;
1814
1815 pf = vf->pf;
1816 hw = &pf->hw;
1817 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1818
1819 /* single place to detect unsuccessful return values */
1820 if (v_retval) {
1821 vf->num_invalid_msgs++;
1822 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n",
1823 vf->vf_id, v_opcode, v_retval);
1824 if (vf->num_invalid_msgs >
1825 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1826 dev_err(&pf->pdev->dev,
1827 "Number of invalid messages exceeded for VF %d\n",
1828 vf->vf_id);
1829 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1830 set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1831 }
1832 } else {
1833 vf->num_valid_msgs++;
1834 /* reset the invalid counter, if a valid message is received. */
1835 vf->num_invalid_msgs = 0;
1836 }
1837
1838 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1839 msg, msglen, NULL);
1840 if (aq_ret) {
1841 dev_info(&pf->pdev->dev,
1842 "Unable to send the message to VF %d aq_err %d\n",
1843 vf->vf_id, pf->hw.aq.asq_last_status);
1844 return -EIO;
1845 }
1846
1847 return 0;
1848}
1849
1850/**
1851 * i40e_vc_send_resp_to_vf
1852 * @vf: pointer to the VF info
1853 * @opcode: operation code
1854 * @retval: return value
1855 *
1856 * send resp msg to VF
1857 **/
1858static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1859 enum virtchnl_ops opcode,
1860 i40e_status retval)
1861{
1862 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1863}
1864
1865/**
1866 * i40e_vc_get_version_msg
1867 * @vf: pointer to the VF info
1868 * @msg: pointer to the msg buffer
1869 *
1870 * called from the VF to request the API version used by the PF
1871 **/
1872static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1873{
1874 struct virtchnl_version_info info = {
1875 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
1876 };
1877
1878 vf->vf_ver = *(struct virtchnl_version_info *)msg;
1879 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1880 if (VF_IS_V10(&vf->vf_ver))
1881 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1882 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
1883 I40E_SUCCESS, (u8 *)&info,
1884 sizeof(struct virtchnl_version_info));
1885}
1886
1887/**
1888 * i40e_del_qch - delete all the additional VSIs created as a part of ADq
1889 * @vf: pointer to VF structure
1890 **/
1891static void i40e_del_qch(struct i40e_vf *vf)
1892{
1893 struct i40e_pf *pf = vf->pf;
1894 int i;
1895
1896 /* first element in the array belongs to primary VF VSI and we shouldn't
1897 * delete it. We should however delete the rest of the VSIs created
1898 */
1899 for (i = 1; i < vf->num_tc; i++) {
1900 if (vf->ch[i].vsi_idx) {
1901 i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]);
1902 vf->ch[i].vsi_idx = 0;
1903 vf->ch[i].vsi_id = 0;
1904 }
1905 }
1906}
1907
1908/**
1909 * i40e_vc_get_vf_resources_msg
1910 * @vf: pointer to the VF info
1911 * @msg: pointer to the msg buffer
1912 *
1913 * called from the VF to request its resources
1914 **/
1915static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1916{
1917 struct virtchnl_vf_resource *vfres = NULL;
1918 struct i40e_pf *pf = vf->pf;
1919 i40e_status aq_ret = 0;
1920 struct i40e_vsi *vsi;
1921 int num_vsis = 1;
1922 size_t len = 0;
1923 int ret;
1924
1925 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
1926 aq_ret = I40E_ERR_PARAM;
1927 goto err;
1928 }
1929
1930 len = struct_size(vfres, vsi_res, num_vsis);
1931 vfres = kzalloc(len, GFP_KERNEL);
1932 if (!vfres) {
1933 aq_ret = I40E_ERR_NO_MEMORY;
1934 len = 0;
1935 goto err;
1936 }
1937 if (VF_IS_V11(&vf->vf_ver))
1938 vf->driver_caps = *(u32 *)msg;
1939 else
1940 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
1941 VIRTCHNL_VF_OFFLOAD_RSS_REG |
1942 VIRTCHNL_VF_OFFLOAD_VLAN;
1943
1944 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
1945 vsi = pf->vsi[vf->lan_vsi_idx];
1946 if (!vsi->info.pvid)
1947 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
1948
1949 if (i40e_vf_client_capable(pf, vf->vf_id) &&
1950 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) {
1951 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP;
1952 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
1953 } else {
1954 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
1955 }
1956
1957 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
1958 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
1959 } else {
1960 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) &&
1961 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
1962 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1963 else
1964 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
1965 }
1966
1967 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
1968 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
1969 vfres->vf_cap_flags |=
1970 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
1971 }
1972
1973 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
1974 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
1975
1976 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) &&
1977 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
1978 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
1979
1980 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
1981 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
1982 dev_err(&pf->pdev->dev,
1983 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
1984 vf->vf_id);
1985 aq_ret = I40E_ERR_PARAM;
1986 goto err;
1987 }
1988 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1989 }
1990
1991 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) {
1992 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1993 vfres->vf_cap_flags |=
1994 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
1995 }
1996
1997 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
1998 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
1999
2000 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)
2001 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ;
2002
2003 vfres->num_vsis = num_vsis;
2004 vfres->num_queue_pairs = vf->num_queue_pairs;
2005 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
2006 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
2007 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
2008
2009 if (vf->lan_vsi_idx) {
2010 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
2011 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
2012 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
2013 /* VFs only use TC 0 */
2014 vfres->vsi_res[0].qset_handle
2015 = le16_to_cpu(vsi->info.qs_handle[0]);
2016 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
2017 vf->default_lan_addr.addr);
2018 }
2019 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
2020
2021err:
2022 /* send the response back to the VF */
2023 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES,
2024 aq_ret, (u8 *)vfres, len);
2025
2026 kfree(vfres);
2027 return ret;
2028}
2029
2030/**
2031 * i40e_vc_reset_vf_msg
2032 * @vf: pointer to the VF info
2033 *
2034 * called from the VF to reset itself,
2035 * unlike other virtchnl messages, PF driver
2036 * doesn't send the response back to the VF
2037 **/
2038static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
2039{
2040 if (test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
2041 i40e_reset_vf(vf, false);
2042}
2043
2044/**
2045 * i40e_vc_config_promiscuous_mode_msg
2046 * @vf: pointer to the VF info
2047 * @msg: pointer to the msg buffer
2048 *
2049 * called from the VF to configure the promiscuous mode of
2050 * VF vsis
2051 **/
2052static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg)
2053{
2054 struct virtchnl_promisc_info *info =
2055 (struct virtchnl_promisc_info *)msg;
2056 struct i40e_pf *pf = vf->pf;
2057 i40e_status aq_ret = 0;
2058 bool allmulti = false;
2059 bool alluni = false;
2060
2061 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2062 aq_ret = I40E_ERR_PARAM;
2063 goto err_out;
2064 }
2065 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2066 dev_err(&pf->pdev->dev,
2067 "Unprivileged VF %d is attempting to configure promiscuous mode\n",
2068 vf->vf_id);
2069
2070 /* Lie to the VF on purpose, because this is an error we can
2071 * ignore. Unprivileged VF is not a virtual channel error.
2072 */
2073 aq_ret = 0;
2074 goto err_out;
2075 }
2076
2077 if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) {
2078 aq_ret = I40E_ERR_PARAM;
2079 goto err_out;
2080 }
2081
2082 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
2083 aq_ret = I40E_ERR_PARAM;
2084 goto err_out;
2085 }
2086
2087 /* Multicast promiscuous handling*/
2088 if (info->flags & FLAG_VF_MULTICAST_PROMISC)
2089 allmulti = true;
2090
2091 if (info->flags & FLAG_VF_UNICAST_PROMISC)
2092 alluni = true;
2093 aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti,
2094 alluni);
2095 if (aq_ret)
2096 goto err_out;
2097
2098 if (allmulti) {
2099 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC,
2100 &vf->vf_states))
2101 dev_info(&pf->pdev->dev,
2102 "VF %d successfully set multicast promiscuous mode\n",
2103 vf->vf_id);
2104 } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC,
2105 &vf->vf_states))
2106 dev_info(&pf->pdev->dev,
2107 "VF %d successfully unset multicast promiscuous mode\n",
2108 vf->vf_id);
2109
2110 if (alluni) {
2111 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC,
2112 &vf->vf_states))
2113 dev_info(&pf->pdev->dev,
2114 "VF %d successfully set unicast promiscuous mode\n",
2115 vf->vf_id);
2116 } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC,
2117 &vf->vf_states))
2118 dev_info(&pf->pdev->dev,
2119 "VF %d successfully unset unicast promiscuous mode\n",
2120 vf->vf_id);
2121
2122err_out:
2123 /* send the response to the VF */
2124 return i40e_vc_send_resp_to_vf(vf,
2125 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
2126 aq_ret);
2127}
2128
2129/**
2130 * i40e_vc_config_queues_msg
2131 * @vf: pointer to the VF info
2132 * @msg: pointer to the msg buffer
2133 *
2134 * called from the VF to configure the rx/tx
2135 * queues
2136 **/
2137static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
2138{
2139 struct virtchnl_vsi_queue_config_info *qci =
2140 (struct virtchnl_vsi_queue_config_info *)msg;
2141 struct virtchnl_queue_pair_info *qpi;
2142 struct i40e_pf *pf = vf->pf;
2143 u16 vsi_id, vsi_queue_id = 0;
2144 u16 num_qps_all = 0;
2145 i40e_status aq_ret = 0;
2146 int i, j = 0, idx = 0;
2147
2148 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2149 aq_ret = I40E_ERR_PARAM;
2150 goto error_param;
2151 }
2152
2153 if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) {
2154 aq_ret = I40E_ERR_PARAM;
2155 goto error_param;
2156 }
2157
2158 if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) {
2159 aq_ret = I40E_ERR_PARAM;
2160 goto error_param;
2161 }
2162
2163 if (vf->adq_enabled) {
2164 for (i = 0; i < I40E_MAX_VF_VSI; i++)
2165 num_qps_all += vf->ch[i].num_qps;
2166 if (num_qps_all != qci->num_queue_pairs) {
2167 aq_ret = I40E_ERR_PARAM;
2168 goto error_param;
2169 }
2170 }
2171
2172 vsi_id = qci->vsi_id;
2173
2174 for (i = 0; i < qci->num_queue_pairs; i++) {
2175 qpi = &qci->qpair[i];
2176
2177 if (!vf->adq_enabled) {
2178 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
2179 qpi->txq.queue_id)) {
2180 aq_ret = I40E_ERR_PARAM;
2181 goto error_param;
2182 }
2183
2184 vsi_queue_id = qpi->txq.queue_id;
2185
2186 if (qpi->txq.vsi_id != qci->vsi_id ||
2187 qpi->rxq.vsi_id != qci->vsi_id ||
2188 qpi->rxq.queue_id != vsi_queue_id) {
2189 aq_ret = I40E_ERR_PARAM;
2190 goto error_param;
2191 }
2192 }
2193
2194 if (vf->adq_enabled) {
2195 if (idx >= ARRAY_SIZE(vf->ch)) {
2196 aq_ret = I40E_ERR_NO_AVAILABLE_VSI;
2197 goto error_param;
2198 }
2199 vsi_id = vf->ch[idx].vsi_id;
2200 }
2201
2202 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
2203 &qpi->rxq) ||
2204 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
2205 &qpi->txq)) {
2206 aq_ret = I40E_ERR_PARAM;
2207 goto error_param;
2208 }
2209
2210 /* For ADq there can be up to 4 VSIs with max 4 queues each.
2211 * VF does not know about these additional VSIs and all
2212 * it cares is about its own queues. PF configures these queues
2213 * to its appropriate VSIs based on TC mapping
2214 */
2215 if (vf->adq_enabled) {
2216 if (idx >= ARRAY_SIZE(vf->ch)) {
2217 aq_ret = I40E_ERR_NO_AVAILABLE_VSI;
2218 goto error_param;
2219 }
2220 if (j == (vf->ch[idx].num_qps - 1)) {
2221 idx++;
2222 j = 0; /* resetting the queue count */
2223 vsi_queue_id = 0;
2224 } else {
2225 j++;
2226 vsi_queue_id++;
2227 }
2228 }
2229 }
2230 /* set vsi num_queue_pairs in use to num configured by VF */
2231 if (!vf->adq_enabled) {
2232 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs =
2233 qci->num_queue_pairs;
2234 } else {
2235 for (i = 0; i < vf->num_tc; i++)
2236 pf->vsi[vf->ch[i].vsi_idx]->num_queue_pairs =
2237 vf->ch[i].num_qps;
2238 }
2239
2240error_param:
2241 /* send the response to the VF */
2242 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
2243 aq_ret);
2244}
2245
2246/**
2247 * i40e_validate_queue_map
2248 * @vsi_id: vsi id
2249 * @queuemap: Tx or Rx queue map
2250 *
2251 * check if Tx or Rx queue map is valid
2252 **/
2253static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id,
2254 unsigned long queuemap)
2255{
2256 u16 vsi_queue_id, queue_id;
2257
2258 for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) {
2259 if (vf->adq_enabled) {
2260 vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id;
2261 queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF);
2262 } else {
2263 queue_id = vsi_queue_id;
2264 }
2265
2266 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id))
2267 return -EINVAL;
2268 }
2269
2270 return 0;
2271}
2272
2273/**
2274 * i40e_vc_config_irq_map_msg
2275 * @vf: pointer to the VF info
2276 * @msg: pointer to the msg buffer
2277 *
2278 * called from the VF to configure the irq to
2279 * queue map
2280 **/
2281static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg)
2282{
2283 struct virtchnl_irq_map_info *irqmap_info =
2284 (struct virtchnl_irq_map_info *)msg;
2285 struct virtchnl_vector_map *map;
2286 u16 vsi_id;
2287 i40e_status aq_ret = 0;
2288 int i;
2289
2290 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2291 aq_ret = I40E_ERR_PARAM;
2292 goto error_param;
2293 }
2294
2295 if (irqmap_info->num_vectors >
2296 vf->pf->hw.func_caps.num_msix_vectors_vf) {
2297 aq_ret = I40E_ERR_PARAM;
2298 goto error_param;
2299 }
2300
2301 for (i = 0; i < irqmap_info->num_vectors; i++) {
2302 map = &irqmap_info->vecmap[i];
2303 /* validate msg params */
2304 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) ||
2305 !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) {
2306 aq_ret = I40E_ERR_PARAM;
2307 goto error_param;
2308 }
2309 vsi_id = map->vsi_id;
2310
2311 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) {
2312 aq_ret = I40E_ERR_PARAM;
2313 goto error_param;
2314 }
2315
2316 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) {
2317 aq_ret = I40E_ERR_PARAM;
2318 goto error_param;
2319 }
2320
2321 i40e_config_irq_link_list(vf, vsi_id, map);
2322 }
2323error_param:
2324 /* send the response to the VF */
2325 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP,
2326 aq_ret);
2327}
2328
2329/**
2330 * i40e_ctrl_vf_tx_rings
2331 * @vsi: the SRIOV VSI being configured
2332 * @q_map: bit map of the queues to be enabled
2333 * @enable: start or stop the queue
2334 **/
2335static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2336 bool enable)
2337{
2338 struct i40e_pf *pf = vsi->back;
2339 int ret = 0;
2340 u16 q_id;
2341
2342 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2343 ret = i40e_control_wait_tx_q(vsi->seid, pf,
2344 vsi->base_queue + q_id,
2345 false /*is xdp*/, enable);
2346 if (ret)
2347 break;
2348 }
2349 return ret;
2350}
2351
2352/**
2353 * i40e_ctrl_vf_rx_rings
2354 * @vsi: the SRIOV VSI being configured
2355 * @q_map: bit map of the queues to be enabled
2356 * @enable: start or stop the queue
2357 **/
2358static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2359 bool enable)
2360{
2361 struct i40e_pf *pf = vsi->back;
2362 int ret = 0;
2363 u16 q_id;
2364
2365 for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2366 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id,
2367 enable);
2368 if (ret)
2369 break;
2370 }
2371 return ret;
2372}
2373
2374/**
2375 * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL
2376 * @vqs: virtchnl_queue_select structure containing bitmaps to validate
2377 *
2378 * Returns true if validation was successful, else false.
2379 */
2380static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
2381{
2382 if ((!vqs->rx_queues && !vqs->tx_queues) ||
2383 vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) ||
2384 vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES))
2385 return false;
2386
2387 return true;
2388}
2389
2390/**
2391 * i40e_vc_enable_queues_msg
2392 * @vf: pointer to the VF info
2393 * @msg: pointer to the msg buffer
2394 *
2395 * called from the VF to enable all or specific queue(s)
2396 **/
2397static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg)
2398{
2399 struct virtchnl_queue_select *vqs =
2400 (struct virtchnl_queue_select *)msg;
2401 struct i40e_pf *pf = vf->pf;
2402 i40e_status aq_ret = 0;
2403 int i;
2404
2405 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2406 aq_ret = I40E_ERR_PARAM;
2407 goto error_param;
2408 }
2409
2410 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2411 aq_ret = I40E_ERR_PARAM;
2412 goto error_param;
2413 }
2414
2415 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2416 aq_ret = I40E_ERR_PARAM;
2417 goto error_param;
2418 }
2419
2420 /* Use the queue bit map sent by the VF */
2421 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2422 true)) {
2423 aq_ret = I40E_ERR_TIMEOUT;
2424 goto error_param;
2425 }
2426 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2427 true)) {
2428 aq_ret = I40E_ERR_TIMEOUT;
2429 goto error_param;
2430 }
2431
2432 /* need to start the rings for additional ADq VSI's as well */
2433 if (vf->adq_enabled) {
2434 /* zero belongs to LAN VSI */
2435 for (i = 1; i < vf->num_tc; i++) {
2436 if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx]))
2437 aq_ret = I40E_ERR_TIMEOUT;
2438 }
2439 }
2440
2441 vf->queues_enabled = true;
2442
2443error_param:
2444 /* send the response to the VF */
2445 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES,
2446 aq_ret);
2447}
2448
2449/**
2450 * i40e_vc_disable_queues_msg
2451 * @vf: pointer to the VF info
2452 * @msg: pointer to the msg buffer
2453 *
2454 * called from the VF to disable all or specific
2455 * queue(s)
2456 **/
2457static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg)
2458{
2459 struct virtchnl_queue_select *vqs =
2460 (struct virtchnl_queue_select *)msg;
2461 struct i40e_pf *pf = vf->pf;
2462 i40e_status aq_ret = 0;
2463
2464 /* Immediately mark queues as disabled */
2465 vf->queues_enabled = false;
2466
2467 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2468 aq_ret = I40E_ERR_PARAM;
2469 goto error_param;
2470 }
2471
2472 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2473 aq_ret = I40E_ERR_PARAM;
2474 goto error_param;
2475 }
2476
2477 if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2478 aq_ret = I40E_ERR_PARAM;
2479 goto error_param;
2480 }
2481
2482 /* Use the queue bit map sent by the VF */
2483 if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2484 false)) {
2485 aq_ret = I40E_ERR_TIMEOUT;
2486 goto error_param;
2487 }
2488 if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2489 false)) {
2490 aq_ret = I40E_ERR_TIMEOUT;
2491 goto error_param;
2492 }
2493error_param:
2494 /* send the response to the VF */
2495 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES,
2496 aq_ret);
2497}
2498
2499/**
2500 * i40e_vc_request_queues_msg
2501 * @vf: pointer to the VF info
2502 * @msg: pointer to the msg buffer
2503 *
2504 * VFs get a default number of queues but can use this message to request a
2505 * different number. If the request is successful, PF will reset the VF and
2506 * return 0. If unsuccessful, PF will send message informing VF of number of
2507 * available queues and return result of sending VF a message.
2508 **/
2509static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
2510{
2511 struct virtchnl_vf_res_request *vfres =
2512 (struct virtchnl_vf_res_request *)msg;
2513 u16 req_pairs = vfres->num_queue_pairs;
2514 u8 cur_pairs = vf->num_queue_pairs;
2515 struct i40e_pf *pf = vf->pf;
2516
2517 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
2518 return -EINVAL;
2519
2520 if (req_pairs > I40E_MAX_VF_QUEUES) {
2521 dev_err(&pf->pdev->dev,
2522 "VF %d tried to request more than %d queues.\n",
2523 vf->vf_id,
2524 I40E_MAX_VF_QUEUES);
2525 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES;
2526 } else if (req_pairs - cur_pairs > pf->queues_left) {
2527 dev_warn(&pf->pdev->dev,
2528 "VF %d requested %d more queues, but only %d left.\n",
2529 vf->vf_id,
2530 req_pairs - cur_pairs,
2531 pf->queues_left);
2532 vfres->num_queue_pairs = pf->queues_left + cur_pairs;
2533 } else {
2534 /* successful request */
2535 vf->num_req_queues = req_pairs;
2536 i40e_vc_notify_vf_reset(vf);
2537 i40e_reset_vf(vf, false);
2538 return 0;
2539 }
2540
2541 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0,
2542 (u8 *)vfres, sizeof(*vfres));
2543}
2544
2545/**
2546 * i40e_vc_get_stats_msg
2547 * @vf: pointer to the VF info
2548 * @msg: pointer to the msg buffer
2549 *
2550 * called from the VF to get vsi stats
2551 **/
2552static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg)
2553{
2554 struct virtchnl_queue_select *vqs =
2555 (struct virtchnl_queue_select *)msg;
2556 struct i40e_pf *pf = vf->pf;
2557 struct i40e_eth_stats stats;
2558 i40e_status aq_ret = 0;
2559 struct i40e_vsi *vsi;
2560
2561 memset(&stats, 0, sizeof(struct i40e_eth_stats));
2562
2563 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2564 aq_ret = I40E_ERR_PARAM;
2565 goto error_param;
2566 }
2567
2568 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2569 aq_ret = I40E_ERR_PARAM;
2570 goto error_param;
2571 }
2572
2573 vsi = pf->vsi[vf->lan_vsi_idx];
2574 if (!vsi) {
2575 aq_ret = I40E_ERR_PARAM;
2576 goto error_param;
2577 }
2578 i40e_update_eth_stats(vsi);
2579 stats = vsi->eth_stats;
2580
2581error_param:
2582 /* send the response back to the VF */
2583 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret,
2584 (u8 *)&stats, sizeof(stats));
2585}
2586
2587/* If the VF is not trusted restrict the number of MAC/VLAN it can program
2588 * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast
2589 */
2590#define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1)
2591#define I40E_VC_MAX_VLAN_PER_VF 16
2592
2593/**
2594 * i40e_check_vf_permission
2595 * @vf: pointer to the VF info
2596 * @al: MAC address list from virtchnl
2597 *
2598 * Check that the given list of MAC addresses is allowed. Will return -EPERM
2599 * if any address in the list is not valid. Checks the following conditions:
2600 *
2601 * 1) broadcast and zero addresses are never valid
2602 * 2) unicast addresses are not allowed if the VMM has administratively set
2603 * the VF MAC address, unless the VF is marked as privileged.
2604 * 3) There is enough space to add all the addresses.
2605 *
2606 * Note that to guarantee consistency, it is expected this function be called
2607 * while holding the mac_filter_hash_lock, as otherwise the current number of
2608 * addresses might not be accurate.
2609 **/
2610static inline int i40e_check_vf_permission(struct i40e_vf *vf,
2611 struct virtchnl_ether_addr_list *al)
2612{
2613 struct i40e_pf *pf = vf->pf;
2614 struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx];
2615 int mac2add_cnt = 0;
2616 int i;
2617
2618 for (i = 0; i < al->num_elements; i++) {
2619 struct i40e_mac_filter *f;
2620 u8 *addr = al->list[i].addr;
2621
2622 if (is_broadcast_ether_addr(addr) ||
2623 is_zero_ether_addr(addr)) {
2624 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
2625 addr);
2626 return I40E_ERR_INVALID_MAC_ADDR;
2627 }
2628
2629 /* If the host VMM administrator has set the VF MAC address
2630 * administratively via the ndo_set_vf_mac command then deny
2631 * permission to the VF to add or delete unicast MAC addresses.
2632 * Unless the VF is privileged and then it can do whatever.
2633 * The VF may request to set the MAC address filter already
2634 * assigned to it so do not return an error in that case.
2635 */
2636 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
2637 !is_multicast_ether_addr(addr) && vf->pf_set_mac &&
2638 !ether_addr_equal(addr, vf->default_lan_addr.addr)) {
2639 dev_err(&pf->pdev->dev,
2640 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
2641 return -EPERM;
2642 }
2643
2644 /*count filters that really will be added*/
2645 f = i40e_find_mac(vsi, addr);
2646 if (!f)
2647 ++mac2add_cnt;
2648 }
2649
2650 /* If this VF is not privileged, then we can't add more than a limited
2651 * number of addresses. Check to make sure that the additions do not
2652 * push us over the limit.
2653 */
2654 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
2655 (i40e_count_filters(vsi) + mac2add_cnt) >
2656 I40E_VC_MAX_MAC_ADDR_PER_VF) {
2657 dev_err(&pf->pdev->dev,
2658 "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n");
2659 return -EPERM;
2660 }
2661 return 0;
2662}
2663
2664/**
2665 * i40e_vc_add_mac_addr_msg
2666 * @vf: pointer to the VF info
2667 * @msg: pointer to the msg buffer
2668 *
2669 * add guest mac address filter
2670 **/
2671static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
2672{
2673 struct virtchnl_ether_addr_list *al =
2674 (struct virtchnl_ether_addr_list *)msg;
2675 struct i40e_pf *pf = vf->pf;
2676 struct i40e_vsi *vsi = NULL;
2677 i40e_status ret = 0;
2678 int i;
2679
2680 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2681 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
2682 ret = I40E_ERR_PARAM;
2683 goto error_param;
2684 }
2685
2686 vsi = pf->vsi[vf->lan_vsi_idx];
2687
2688 /* Lock once, because all function inside for loop accesses VSI's
2689 * MAC filter list which needs to be protected using same lock.
2690 */
2691 spin_lock_bh(&vsi->mac_filter_hash_lock);
2692
2693 ret = i40e_check_vf_permission(vf, al);
2694 if (ret) {
2695 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2696 goto error_param;
2697 }
2698
2699 /* add new addresses to the list */
2700 for (i = 0; i < al->num_elements; i++) {
2701 struct i40e_mac_filter *f;
2702
2703 f = i40e_find_mac(vsi, al->list[i].addr);
2704 if (!f) {
2705 f = i40e_add_mac_filter(vsi, al->list[i].addr);
2706
2707 if (!f) {
2708 dev_err(&pf->pdev->dev,
2709 "Unable to add MAC filter %pM for VF %d\n",
2710 al->list[i].addr, vf->vf_id);
2711 ret = I40E_ERR_PARAM;
2712 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2713 goto error_param;
2714 }
2715 }
2716 }
2717 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2718
2719 /* program the updated filter list */
2720 ret = i40e_sync_vsi_filters(vsi);
2721 if (ret)
2722 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2723 vf->vf_id, ret);
2724
2725error_param:
2726 /* send the response to the VF */
2727 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
2728 ret);
2729}
2730
2731/**
2732 * i40e_vc_del_mac_addr_msg
2733 * @vf: pointer to the VF info
2734 * @msg: pointer to the msg buffer
2735 *
2736 * remove guest mac address filter
2737 **/
2738static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
2739{
2740 struct virtchnl_ether_addr_list *al =
2741 (struct virtchnl_ether_addr_list *)msg;
2742 struct i40e_pf *pf = vf->pf;
2743 struct i40e_vsi *vsi = NULL;
2744 i40e_status ret = 0;
2745 int i;
2746
2747 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2748 !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
2749 ret = I40E_ERR_PARAM;
2750 goto error_param;
2751 }
2752
2753 for (i = 0; i < al->num_elements; i++) {
2754 if (is_broadcast_ether_addr(al->list[i].addr) ||
2755 is_zero_ether_addr(al->list[i].addr)) {
2756 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
2757 al->list[i].addr, vf->vf_id);
2758 ret = I40E_ERR_INVALID_MAC_ADDR;
2759 goto error_param;
2760 }
2761 }
2762 vsi = pf->vsi[vf->lan_vsi_idx];
2763
2764 spin_lock_bh(&vsi->mac_filter_hash_lock);
2765 /* delete addresses from the list */
2766 for (i = 0; i < al->num_elements; i++)
2767 if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
2768 ret = I40E_ERR_INVALID_MAC_ADDR;
2769 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2770 goto error_param;
2771 }
2772
2773 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2774
2775 /* program the updated filter list */
2776 ret = i40e_sync_vsi_filters(vsi);
2777 if (ret)
2778 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2779 vf->vf_id, ret);
2780
2781error_param:
2782 /* send the response to the VF */
2783 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR,
2784 ret);
2785}
2786
2787/**
2788 * i40e_vc_add_vlan_msg
2789 * @vf: pointer to the VF info
2790 * @msg: pointer to the msg buffer
2791 *
2792 * program guest vlan id
2793 **/
2794static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg)
2795{
2796 struct virtchnl_vlan_filter_list *vfl =
2797 (struct virtchnl_vlan_filter_list *)msg;
2798 struct i40e_pf *pf = vf->pf;
2799 struct i40e_vsi *vsi = NULL;
2800 i40e_status aq_ret = 0;
2801 int i;
2802
2803 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
2804 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2805 dev_err(&pf->pdev->dev,
2806 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
2807 goto error_param;
2808 }
2809 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2810 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
2811 aq_ret = I40E_ERR_PARAM;
2812 goto error_param;
2813 }
2814
2815 for (i = 0; i < vfl->num_elements; i++) {
2816 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2817 aq_ret = I40E_ERR_PARAM;
2818 dev_err(&pf->pdev->dev,
2819 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
2820 goto error_param;
2821 }
2822 }
2823 vsi = pf->vsi[vf->lan_vsi_idx];
2824 if (vsi->info.pvid) {
2825 aq_ret = I40E_ERR_PARAM;
2826 goto error_param;
2827 }
2828
2829 i40e_vlan_stripping_enable(vsi);
2830 for (i = 0; i < vfl->num_elements; i++) {
2831 /* add new VLAN filter */
2832 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
2833 if (!ret)
2834 vf->num_vlan++;
2835
2836 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
2837 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2838 true,
2839 vfl->vlan_id[i],
2840 NULL);
2841 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
2842 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2843 true,
2844 vfl->vlan_id[i],
2845 NULL);
2846
2847 if (ret)
2848 dev_err(&pf->pdev->dev,
2849 "Unable to add VLAN filter %d for VF %d, error %d\n",
2850 vfl->vlan_id[i], vf->vf_id, ret);
2851 }
2852
2853error_param:
2854 /* send the response to the VF */
2855 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret);
2856}
2857
2858/**
2859 * i40e_vc_remove_vlan_msg
2860 * @vf: pointer to the VF info
2861 * @msg: pointer to the msg buffer
2862 *
2863 * remove programmed guest vlan id
2864 **/
2865static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg)
2866{
2867 struct virtchnl_vlan_filter_list *vfl =
2868 (struct virtchnl_vlan_filter_list *)msg;
2869 struct i40e_pf *pf = vf->pf;
2870 struct i40e_vsi *vsi = NULL;
2871 i40e_status aq_ret = 0;
2872 int i;
2873
2874 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2875 !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
2876 aq_ret = I40E_ERR_PARAM;
2877 goto error_param;
2878 }
2879
2880 for (i = 0; i < vfl->num_elements; i++) {
2881 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2882 aq_ret = I40E_ERR_PARAM;
2883 goto error_param;
2884 }
2885 }
2886
2887 vsi = pf->vsi[vf->lan_vsi_idx];
2888 if (vsi->info.pvid) {
2889 if (vfl->num_elements > 1 || vfl->vlan_id[0])
2890 aq_ret = I40E_ERR_PARAM;
2891 goto error_param;
2892 }
2893
2894 for (i = 0; i < vfl->num_elements; i++) {
2895 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
2896 vf->num_vlan--;
2897
2898 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
2899 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2900 false,
2901 vfl->vlan_id[i],
2902 NULL);
2903 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
2904 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2905 false,
2906 vfl->vlan_id[i],
2907 NULL);
2908 }
2909
2910error_param:
2911 /* send the response to the VF */
2912 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret);
2913}
2914
2915/**
2916 * i40e_vc_iwarp_msg
2917 * @vf: pointer to the VF info
2918 * @msg: pointer to the msg buffer
2919 * @msglen: msg length
2920 *
2921 * called from the VF for the iwarp msgs
2922 **/
2923static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2924{
2925 struct i40e_pf *pf = vf->pf;
2926 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
2927 i40e_status aq_ret = 0;
2928
2929 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2930 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
2931 aq_ret = I40E_ERR_PARAM;
2932 goto error_param;
2933 }
2934
2935 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
2936 msg, msglen);
2937
2938error_param:
2939 /* send the response to the VF */
2940 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP,
2941 aq_ret);
2942}
2943
2944/**
2945 * i40e_vc_iwarp_qvmap_msg
2946 * @vf: pointer to the VF info
2947 * @msg: pointer to the msg buffer
2948 * @config: config qvmap or release it
2949 *
2950 * called from the VF for the iwarp msgs
2951 **/
2952static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config)
2953{
2954 struct virtchnl_iwarp_qvlist_info *qvlist_info =
2955 (struct virtchnl_iwarp_qvlist_info *)msg;
2956 i40e_status aq_ret = 0;
2957
2958 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2959 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
2960 aq_ret = I40E_ERR_PARAM;
2961 goto error_param;
2962 }
2963
2964 if (config) {
2965 if (i40e_config_iwarp_qvlist(vf, qvlist_info))
2966 aq_ret = I40E_ERR_PARAM;
2967 } else {
2968 i40e_release_iwarp_qvlist(vf);
2969 }
2970
2971error_param:
2972 /* send the response to the VF */
2973 return i40e_vc_send_resp_to_vf(vf,
2974 config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP :
2975 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP,
2976 aq_ret);
2977}
2978
2979/**
2980 * i40e_vc_config_rss_key
2981 * @vf: pointer to the VF info
2982 * @msg: pointer to the msg buffer
2983 *
2984 * Configure the VF's RSS key
2985 **/
2986static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg)
2987{
2988 struct virtchnl_rss_key *vrk =
2989 (struct virtchnl_rss_key *)msg;
2990 struct i40e_pf *pf = vf->pf;
2991 struct i40e_vsi *vsi = NULL;
2992 i40e_status aq_ret = 0;
2993
2994 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2995 !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) ||
2996 (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) {
2997 aq_ret = I40E_ERR_PARAM;
2998 goto err;
2999 }
3000
3001 vsi = pf->vsi[vf->lan_vsi_idx];
3002 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
3003err:
3004 /* send the response to the VF */
3005 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY,
3006 aq_ret);
3007}
3008
3009/**
3010 * i40e_vc_config_rss_lut
3011 * @vf: pointer to the VF info
3012 * @msg: pointer to the msg buffer
3013 *
3014 * Configure the VF's RSS LUT
3015 **/
3016static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg)
3017{
3018 struct virtchnl_rss_lut *vrl =
3019 (struct virtchnl_rss_lut *)msg;
3020 struct i40e_pf *pf = vf->pf;
3021 struct i40e_vsi *vsi = NULL;
3022 i40e_status aq_ret = 0;
3023 u16 i;
3024
3025 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
3026 !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) ||
3027 (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) {
3028 aq_ret = I40E_ERR_PARAM;
3029 goto err;
3030 }
3031
3032 for (i = 0; i < vrl->lut_entries; i++)
3033 if (vrl->lut[i] >= vf->num_queue_pairs) {
3034 aq_ret = I40E_ERR_PARAM;
3035 goto err;
3036 }
3037
3038 vsi = pf->vsi[vf->lan_vsi_idx];
3039 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
3040 /* send the response to the VF */
3041err:
3042 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT,
3043 aq_ret);
3044}
3045
3046/**
3047 * i40e_vc_get_rss_hena
3048 * @vf: pointer to the VF info
3049 * @msg: pointer to the msg buffer
3050 *
3051 * Return the RSS HENA bits allowed by the hardware
3052 **/
3053static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg)
3054{
3055 struct virtchnl_rss_hena *vrh = NULL;
3056 struct i40e_pf *pf = vf->pf;
3057 i40e_status aq_ret = 0;
3058 int len = 0;
3059
3060 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3061 aq_ret = I40E_ERR_PARAM;
3062 goto err;
3063 }
3064 len = sizeof(struct virtchnl_rss_hena);
3065
3066 vrh = kzalloc(len, GFP_KERNEL);
3067 if (!vrh) {
3068 aq_ret = I40E_ERR_NO_MEMORY;
3069 len = 0;
3070 goto err;
3071 }
3072 vrh->hena = i40e_pf_get_default_rss_hena(pf);
3073err:
3074 /* send the response back to the VF */
3075 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS,
3076 aq_ret, (u8 *)vrh, len);
3077 kfree(vrh);
3078 return aq_ret;
3079}
3080
3081/**
3082 * i40e_vc_set_rss_hena
3083 * @vf: pointer to the VF info
3084 * @msg: pointer to the msg buffer
3085 *
3086 * Set the RSS HENA bits for the VF
3087 **/
3088static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg)
3089{
3090 struct virtchnl_rss_hena *vrh =
3091 (struct virtchnl_rss_hena *)msg;
3092 struct i40e_pf *pf = vf->pf;
3093 struct i40e_hw *hw = &pf->hw;
3094 i40e_status aq_ret = 0;
3095
3096 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3097 aq_ret = I40E_ERR_PARAM;
3098 goto err;
3099 }
3100 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);
3101 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
3102 (u32)(vrh->hena >> 32));
3103
3104 /* send the response to the VF */
3105err:
3106 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret);
3107}
3108
3109/**
3110 * i40e_vc_enable_vlan_stripping
3111 * @vf: pointer to the VF info
3112 * @msg: pointer to the msg buffer
3113 *
3114 * Enable vlan header stripping for the VF
3115 **/
3116static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3117{
3118 i40e_status aq_ret = 0;
3119 struct i40e_vsi *vsi;
3120
3121 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3122 aq_ret = I40E_ERR_PARAM;
3123 goto err;
3124 }
3125
3126 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3127 i40e_vlan_stripping_enable(vsi);
3128
3129 /* send the response to the VF */
3130err:
3131 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
3132 aq_ret);
3133}
3134
3135/**
3136 * i40e_vc_disable_vlan_stripping
3137 * @vf: pointer to the VF info
3138 * @msg: pointer to the msg buffer
3139 *
3140 * Disable vlan header stripping for the VF
3141 **/
3142static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3143{
3144 i40e_status aq_ret = 0;
3145 struct i40e_vsi *vsi;
3146
3147 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3148 aq_ret = I40E_ERR_PARAM;
3149 goto err;
3150 }
3151
3152 vsi = vf->pf->vsi[vf->lan_vsi_idx];
3153 i40e_vlan_stripping_disable(vsi);
3154
3155 /* send the response to the VF */
3156err:
3157 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
3158 aq_ret);
3159}
3160
3161/**
3162 * i40e_validate_cloud_filter
3163 * @mask: mask for TC filter
3164 * @data: data for TC filter
3165 *
3166 * This function validates cloud filter programmed as TC filter for ADq
3167 **/
3168static int i40e_validate_cloud_filter(struct i40e_vf *vf,
3169 struct virtchnl_filter *tc_filter)
3170{
3171 struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec;
3172 struct virtchnl_l4_spec data = tc_filter->data.tcp_spec;
3173 struct i40e_pf *pf = vf->pf;
3174 struct i40e_vsi *vsi = NULL;
3175 struct i40e_mac_filter *f;
3176 struct hlist_node *h;
3177 bool found = false;
3178 int bkt;
3179
3180 if (!tc_filter->action) {
3181 dev_info(&pf->pdev->dev,
3182 "VF %d: Currently ADq doesn't support Drop Action\n",
3183 vf->vf_id);
3184 goto err;
3185 }
3186
3187 /* action_meta is TC number here to which the filter is applied */
3188 if (!tc_filter->action_meta ||
3189 tc_filter->action_meta > I40E_MAX_VF_VSI) {
3190 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n",
3191 vf->vf_id, tc_filter->action_meta);
3192 goto err;
3193 }
3194
3195 /* Check filter if it's programmed for advanced mode or basic mode.
3196 * There are two ADq modes (for VF only),
3197 * 1. Basic mode: intended to allow as many filter options as possible
3198 * to be added to a VF in Non-trusted mode. Main goal is
3199 * to add filters to its own MAC and VLAN id.
3200 * 2. Advanced mode: is for allowing filters to be applied other than
3201 * its own MAC or VLAN. This mode requires the VF to be
3202 * Trusted.
3203 */
3204 if (mask.dst_mac[0] && !mask.dst_ip[0]) {
3205 vsi = pf->vsi[vf->lan_vsi_idx];
3206 f = i40e_find_mac(vsi, data.dst_mac);
3207
3208 if (!f) {
3209 dev_info(&pf->pdev->dev,
3210 "Destination MAC %pM doesn't belong to VF %d\n",
3211 data.dst_mac, vf->vf_id);
3212 goto err;
3213 }
3214
3215 if (mask.vlan_id) {
3216 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f,
3217 hlist) {
3218 if (f->vlan == ntohs(data.vlan_id)) {
3219 found = true;
3220 break;
3221 }
3222 }
3223 if (!found) {
3224 dev_info(&pf->pdev->dev,
3225 "VF %d doesn't have any VLAN id %u\n",
3226 vf->vf_id, ntohs(data.vlan_id));
3227 goto err;
3228 }
3229 }
3230 } else {
3231 /* Check if VF is trusted */
3232 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3233 dev_err(&pf->pdev->dev,
3234 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n",
3235 vf->vf_id);
3236 return I40E_ERR_CONFIG;
3237 }
3238 }
3239
3240 if (mask.dst_mac[0] & data.dst_mac[0]) {
3241 if (is_broadcast_ether_addr(data.dst_mac) ||
3242 is_zero_ether_addr(data.dst_mac)) {
3243 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n",
3244 vf->vf_id, data.dst_mac);
3245 goto err;
3246 }
3247 }
3248
3249 if (mask.src_mac[0] & data.src_mac[0]) {
3250 if (is_broadcast_ether_addr(data.src_mac) ||
3251 is_zero_ether_addr(data.src_mac)) {
3252 dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n",
3253 vf->vf_id, data.src_mac);
3254 goto err;
3255 }
3256 }
3257
3258 if (mask.dst_port & data.dst_port) {
3259 if (!data.dst_port) {
3260 dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n",
3261 vf->vf_id);
3262 goto err;
3263 }
3264 }
3265
3266 if (mask.src_port & data.src_port) {
3267 if (!data.src_port) {
3268 dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n",
3269 vf->vf_id);
3270 goto err;
3271 }
3272 }
3273
3274 if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW &&
3275 tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) {
3276 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n",
3277 vf->vf_id);
3278 goto err;
3279 }
3280
3281 if (mask.vlan_id & data.vlan_id) {
3282 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) {
3283 dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n",
3284 vf->vf_id);
3285 goto err;
3286 }
3287 }
3288
3289 return I40E_SUCCESS;
3290err:
3291 return I40E_ERR_CONFIG;
3292}
3293
3294/**
3295 * i40e_find_vsi_from_seid - searches for the vsi with the given seid
3296 * @vf: pointer to the VF info
3297 * @seid - seid of the vsi it is searching for
3298 **/
3299static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid)
3300{
3301 struct i40e_pf *pf = vf->pf;
3302 struct i40e_vsi *vsi = NULL;
3303 int i;
3304
3305 for (i = 0; i < vf->num_tc ; i++) {
3306 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id);
3307 if (vsi && vsi->seid == seid)
3308 return vsi;
3309 }
3310 return NULL;
3311}
3312
3313/**
3314 * i40e_del_all_cloud_filters
3315 * @vf: pointer to the VF info
3316 *
3317 * This function deletes all cloud filters
3318 **/
3319static void i40e_del_all_cloud_filters(struct i40e_vf *vf)
3320{
3321 struct i40e_cloud_filter *cfilter = NULL;
3322 struct i40e_pf *pf = vf->pf;
3323 struct i40e_vsi *vsi = NULL;
3324 struct hlist_node *node;
3325 int ret;
3326
3327 hlist_for_each_entry_safe(cfilter, node,
3328 &vf->cloud_filter_list, cloud_node) {
3329 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid);
3330
3331 if (!vsi) {
3332 dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n",
3333 vf->vf_id, cfilter->seid);
3334 continue;
3335 }
3336
3337 if (cfilter->dst_port)
3338 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter,
3339 false);
3340 else
3341 ret = i40e_add_del_cloud_filter(vsi, cfilter, false);
3342 if (ret)
3343 dev_err(&pf->pdev->dev,
3344 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n",
3345 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3346 i40e_aq_str(&pf->hw,
3347 pf->hw.aq.asq_last_status));
3348
3349 hlist_del(&cfilter->cloud_node);
3350 kfree(cfilter);
3351 vf->num_cloud_filters--;
3352 }
3353}
3354
3355/**
3356 * i40e_vc_del_cloud_filter
3357 * @vf: pointer to the VF info
3358 * @msg: pointer to the msg buffer
3359 *
3360 * This function deletes a cloud filter programmed as TC filter for ADq
3361 **/
3362static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg)
3363{
3364 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3365 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3366 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3367 struct i40e_cloud_filter cfilter, *cf = NULL;
3368 struct i40e_pf *pf = vf->pf;
3369 struct i40e_vsi *vsi = NULL;
3370 struct hlist_node *node;
3371 i40e_status aq_ret = 0;
3372 int i, ret;
3373
3374 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3375 aq_ret = I40E_ERR_PARAM;
3376 goto err;
3377 }
3378
3379 if (!vf->adq_enabled) {
3380 dev_info(&pf->pdev->dev,
3381 "VF %d: ADq not enabled, can't apply cloud filter\n",
3382 vf->vf_id);
3383 aq_ret = I40E_ERR_PARAM;
3384 goto err;
3385 }
3386
3387 if (i40e_validate_cloud_filter(vf, vcf)) {
3388 dev_info(&pf->pdev->dev,
3389 "VF %d: Invalid input, can't apply cloud filter\n",
3390 vf->vf_id);
3391 aq_ret = I40E_ERR_PARAM;
3392 goto err;
3393 }
3394
3395 memset(&cfilter, 0, sizeof(cfilter));
3396 /* parse destination mac address */
3397 for (i = 0; i < ETH_ALEN; i++)
3398 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3399
3400 /* parse source mac address */
3401 for (i = 0; i < ETH_ALEN; i++)
3402 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3403
3404 cfilter.vlan_id = mask.vlan_id & tcf.vlan_id;
3405 cfilter.dst_port = mask.dst_port & tcf.dst_port;
3406 cfilter.src_port = mask.src_port & tcf.src_port;
3407
3408 switch (vcf->flow_type) {
3409 case VIRTCHNL_TCP_V4_FLOW:
3410 cfilter.n_proto = ETH_P_IP;
3411 if (mask.dst_ip[0] & tcf.dst_ip[0])
3412 memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip,
3413 ARRAY_SIZE(tcf.dst_ip));
3414 else if (mask.src_ip[0] & tcf.dst_ip[0])
3415 memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip,
3416 ARRAY_SIZE(tcf.dst_ip));
3417 break;
3418 case VIRTCHNL_TCP_V6_FLOW:
3419 cfilter.n_proto = ETH_P_IPV6;
3420 if (mask.dst_ip[3] & tcf.dst_ip[3])
3421 memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip,
3422 sizeof(cfilter.ip.v6.dst_ip6));
3423 if (mask.src_ip[3] & tcf.src_ip[3])
3424 memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip,
3425 sizeof(cfilter.ip.v6.src_ip6));
3426 break;
3427 default:
3428 /* TC filter can be configured based on different combinations
3429 * and in this case IP is not a part of filter config
3430 */
3431 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3432 vf->vf_id);
3433 }
3434
3435 /* get the vsi to which the tc belongs to */
3436 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3437 cfilter.seid = vsi->seid;
3438 cfilter.flags = vcf->field_flags;
3439
3440 /* Deleting TC filter */
3441 if (tcf.dst_port)
3442 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false);
3443 else
3444 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false);
3445 if (ret) {
3446 dev_err(&pf->pdev->dev,
3447 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n",
3448 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3449 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3450 goto err;
3451 }
3452
3453 hlist_for_each_entry_safe(cf, node,
3454 &vf->cloud_filter_list, cloud_node) {
3455 if (cf->seid != cfilter.seid)
3456 continue;
3457 if (mask.dst_port)
3458 if (cfilter.dst_port != cf->dst_port)
3459 continue;
3460 if (mask.dst_mac[0])
3461 if (!ether_addr_equal(cf->src_mac, cfilter.src_mac))
3462 continue;
3463 /* for ipv4 data to be valid, only first byte of mask is set */
3464 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0])
3465 if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip,
3466 ARRAY_SIZE(tcf.dst_ip)))
3467 continue;
3468 /* for ipv6, mask is set for all sixteen bytes (4 words) */
3469 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3])
3470 if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6,
3471 sizeof(cfilter.ip.v6.src_ip6)))
3472 continue;
3473 if (mask.vlan_id)
3474 if (cfilter.vlan_id != cf->vlan_id)
3475 continue;
3476
3477 hlist_del(&cf->cloud_node);
3478 kfree(cf);
3479 vf->num_cloud_filters--;
3480 }
3481
3482err:
3483 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER,
3484 aq_ret);
3485}
3486
3487/**
3488 * i40e_vc_add_cloud_filter
3489 * @vf: pointer to the VF info
3490 * @msg: pointer to the msg buffer
3491 *
3492 * This function adds a cloud filter programmed as TC filter for ADq
3493 **/
3494static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
3495{
3496 struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3497 struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3498 struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3499 struct i40e_cloud_filter *cfilter = NULL;
3500 struct i40e_pf *pf = vf->pf;
3501 struct i40e_vsi *vsi = NULL;
3502 i40e_status aq_ret = 0;
3503 int i, ret;
3504
3505 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3506 aq_ret = I40E_ERR_PARAM;
3507 goto err_out;
3508 }
3509
3510 if (!vf->adq_enabled) {
3511 dev_info(&pf->pdev->dev,
3512 "VF %d: ADq is not enabled, can't apply cloud filter\n",
3513 vf->vf_id);
3514 aq_ret = I40E_ERR_PARAM;
3515 goto err_out;
3516 }
3517
3518 if (i40e_validate_cloud_filter(vf, vcf)) {
3519 dev_info(&pf->pdev->dev,
3520 "VF %d: Invalid input/s, can't apply cloud filter\n",
3521 vf->vf_id);
3522 aq_ret = I40E_ERR_PARAM;
3523 goto err_out;
3524 }
3525
3526 cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL);
3527 if (!cfilter)
3528 return -ENOMEM;
3529
3530 /* parse destination mac address */
3531 for (i = 0; i < ETH_ALEN; i++)
3532 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3533
3534 /* parse source mac address */
3535 for (i = 0; i < ETH_ALEN; i++)
3536 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3537
3538 cfilter->vlan_id = mask.vlan_id & tcf.vlan_id;
3539 cfilter->dst_port = mask.dst_port & tcf.dst_port;
3540 cfilter->src_port = mask.src_port & tcf.src_port;
3541
3542 switch (vcf->flow_type) {
3543 case VIRTCHNL_TCP_V4_FLOW:
3544 cfilter->n_proto = ETH_P_IP;
3545 if (mask.dst_ip[0] & tcf.dst_ip[0])
3546 memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip,
3547 ARRAY_SIZE(tcf.dst_ip));
3548 else if (mask.src_ip[0] & tcf.dst_ip[0])
3549 memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip,
3550 ARRAY_SIZE(tcf.dst_ip));
3551 break;
3552 case VIRTCHNL_TCP_V6_FLOW:
3553 cfilter->n_proto = ETH_P_IPV6;
3554 if (mask.dst_ip[3] & tcf.dst_ip[3])
3555 memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip,
3556 sizeof(cfilter->ip.v6.dst_ip6));
3557 if (mask.src_ip[3] & tcf.src_ip[3])
3558 memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip,
3559 sizeof(cfilter->ip.v6.src_ip6));
3560 break;
3561 default:
3562 /* TC filter can be configured based on different combinations
3563 * and in this case IP is not a part of filter config
3564 */
3565 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3566 vf->vf_id);
3567 }
3568
3569 /* get the VSI to which the TC belongs to */
3570 vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3571 cfilter->seid = vsi->seid;
3572 cfilter->flags = vcf->field_flags;
3573
3574 /* Adding cloud filter programmed as TC filter */
3575 if (tcf.dst_port)
3576 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true);
3577 else
3578 ret = i40e_add_del_cloud_filter(vsi, cfilter, true);
3579 if (ret) {
3580 dev_err(&pf->pdev->dev,
3581 "VF %d: Failed to add cloud filter, err %s aq_err %s\n",
3582 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3583 i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3584 goto err_free;
3585 }
3586
3587 INIT_HLIST_NODE(&cfilter->cloud_node);
3588 hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list);
3589 /* release the pointer passing it to the collection */
3590 cfilter = NULL;
3591 vf->num_cloud_filters++;
3592err_free:
3593 kfree(cfilter);
3594err_out:
3595 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER,
3596 aq_ret);
3597}
3598
3599/**
3600 * i40e_vc_add_qch_msg: Add queue channel and enable ADq
3601 * @vf: pointer to the VF info
3602 * @msg: pointer to the msg buffer
3603 **/
3604static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
3605{
3606 struct virtchnl_tc_info *tci =
3607 (struct virtchnl_tc_info *)msg;
3608 struct i40e_pf *pf = vf->pf;
3609 struct i40e_link_status *ls = &pf->hw.phy.link_info;
3610 int i, adq_request_qps = 0;
3611 i40e_status aq_ret = 0;
3612 u64 speed = 0;
3613
3614 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3615 aq_ret = I40E_ERR_PARAM;
3616 goto err;
3617 }
3618
3619 /* ADq cannot be applied if spoof check is ON */
3620 if (vf->spoofchk) {
3621 dev_err(&pf->pdev->dev,
3622 "Spoof check is ON, turn it OFF to enable ADq\n");
3623 aq_ret = I40E_ERR_PARAM;
3624 goto err;
3625 }
3626
3627 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) {
3628 dev_err(&pf->pdev->dev,
3629 "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n",
3630 vf->vf_id);
3631 aq_ret = I40E_ERR_PARAM;
3632 goto err;
3633 }
3634
3635 /* max number of traffic classes for VF currently capped at 4 */
3636 if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) {
3637 dev_err(&pf->pdev->dev,
3638 "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n",
3639 vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI);
3640 aq_ret = I40E_ERR_PARAM;
3641 goto err;
3642 }
3643
3644 /* validate queues for each TC */
3645 for (i = 0; i < tci->num_tc; i++)
3646 if (!tci->list[i].count ||
3647 tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) {
3648 dev_err(&pf->pdev->dev,
3649 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n",
3650 vf->vf_id, i, tci->list[i].count,
3651 I40E_DEFAULT_QUEUES_PER_VF);
3652 aq_ret = I40E_ERR_PARAM;
3653 goto err;
3654 }
3655
3656 /* need Max VF queues but already have default number of queues */
3657 adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF;
3658
3659 if (pf->queues_left < adq_request_qps) {
3660 dev_err(&pf->pdev->dev,
3661 "No queues left to allocate to VF %d\n",
3662 vf->vf_id);
3663 aq_ret = I40E_ERR_PARAM;
3664 goto err;
3665 } else {
3666 /* we need to allocate max VF queues to enable ADq so as to
3667 * make sure ADq enabled VF always gets back queues when it
3668 * goes through a reset.
3669 */
3670 vf->num_queue_pairs = I40E_MAX_VF_QUEUES;
3671 }
3672
3673 /* get link speed in MB to validate rate limit */
3674 switch (ls->link_speed) {
3675 case VIRTCHNL_LINK_SPEED_100MB:
3676 speed = SPEED_100;
3677 break;
3678 case VIRTCHNL_LINK_SPEED_1GB:
3679 speed = SPEED_1000;
3680 break;
3681 case VIRTCHNL_LINK_SPEED_10GB:
3682 speed = SPEED_10000;
3683 break;
3684 case VIRTCHNL_LINK_SPEED_20GB:
3685 speed = SPEED_20000;
3686 break;
3687 case VIRTCHNL_LINK_SPEED_25GB:
3688 speed = SPEED_25000;
3689 break;
3690 case VIRTCHNL_LINK_SPEED_40GB:
3691 speed = SPEED_40000;
3692 break;
3693 default:
3694 dev_err(&pf->pdev->dev,
3695 "Cannot detect link speed\n");
3696 aq_ret = I40E_ERR_PARAM;
3697 goto err;
3698 }
3699
3700 /* parse data from the queue channel info */
3701 vf->num_tc = tci->num_tc;
3702 for (i = 0; i < vf->num_tc; i++) {
3703 if (tci->list[i].max_tx_rate) {
3704 if (tci->list[i].max_tx_rate > speed) {
3705 dev_err(&pf->pdev->dev,
3706 "Invalid max tx rate %llu specified for VF %d.",
3707 tci->list[i].max_tx_rate,
3708 vf->vf_id);
3709 aq_ret = I40E_ERR_PARAM;
3710 goto err;
3711 } else {
3712 vf->ch[i].max_tx_rate =
3713 tci->list[i].max_tx_rate;
3714 }
3715 }
3716 vf->ch[i].num_qps = tci->list[i].count;
3717 }
3718
3719 /* set this flag only after making sure all inputs are sane */
3720 vf->adq_enabled = true;
3721 /* num_req_queues is set when user changes number of queues via ethtool
3722 * and this causes issue for default VSI(which depends on this variable)
3723 * when ADq is enabled, hence reset it.
3724 */
3725 vf->num_req_queues = 0;
3726
3727 /* reset the VF in order to allocate resources */
3728 i40e_vc_notify_vf_reset(vf);
3729 i40e_reset_vf(vf, false);
3730
3731 return I40E_SUCCESS;
3732
3733 /* send the response to the VF */
3734err:
3735 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS,
3736 aq_ret);
3737}
3738
3739/**
3740 * i40e_vc_del_qch_msg
3741 * @vf: pointer to the VF info
3742 * @msg: pointer to the msg buffer
3743 **/
3744static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
3745{
3746 struct i40e_pf *pf = vf->pf;
3747 i40e_status aq_ret = 0;
3748
3749 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3750 aq_ret = I40E_ERR_PARAM;
3751 goto err;
3752 }
3753
3754 if (vf->adq_enabled) {
3755 i40e_del_all_cloud_filters(vf);
3756 i40e_del_qch(vf);
3757 vf->adq_enabled = false;
3758 vf->num_tc = 0;
3759 dev_info(&pf->pdev->dev,
3760 "Deleting Queue Channels and cloud filters for ADq on VF %d\n",
3761 vf->vf_id);
3762 } else {
3763 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n",
3764 vf->vf_id);
3765 aq_ret = I40E_ERR_PARAM;
3766 }
3767
3768 /* reset the VF in order to allocate resources */
3769 i40e_vc_notify_vf_reset(vf);
3770 i40e_reset_vf(vf, false);
3771
3772 return I40E_SUCCESS;
3773
3774err:
3775 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS,
3776 aq_ret);
3777}
3778
3779/**
3780 * i40e_vc_process_vf_msg
3781 * @pf: pointer to the PF structure
3782 * @vf_id: source VF id
3783 * @v_opcode: operation code
3784 * @v_retval: unused return value code
3785 * @msg: pointer to the msg buffer
3786 * @msglen: msg length
3787 *
3788 * called from the common aeq/arq handler to
3789 * process request from VF
3790 **/
3791int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
3792 u32 __always_unused v_retval, u8 *msg, u16 msglen)
3793{
3794 struct i40e_hw *hw = &pf->hw;
3795 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
3796 struct i40e_vf *vf;
3797 int ret;
3798
3799 pf->vf_aq_requests++;
3800 if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs)
3801 return -EINVAL;
3802 vf = &(pf->vf[local_vf_id]);
3803
3804 /* Check if VF is disabled. */
3805 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states))
3806 return I40E_ERR_PARAM;
3807
3808 /* perform basic checks on the msg */
3809 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
3810
3811 if (ret) {
3812 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
3813 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
3814 local_vf_id, v_opcode, msglen);
3815 switch (ret) {
3816 case VIRTCHNL_STATUS_ERR_PARAM:
3817 return -EPERM;
3818 default:
3819 return -EINVAL;
3820 }
3821 }
3822
3823 switch (v_opcode) {
3824 case VIRTCHNL_OP_VERSION:
3825 ret = i40e_vc_get_version_msg(vf, msg);
3826 break;
3827 case VIRTCHNL_OP_GET_VF_RESOURCES:
3828 ret = i40e_vc_get_vf_resources_msg(vf, msg);
3829 i40e_vc_notify_vf_link_state(vf);
3830 break;
3831 case VIRTCHNL_OP_RESET_VF:
3832 i40e_vc_reset_vf_msg(vf);
3833 ret = 0;
3834 break;
3835 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
3836 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg);
3837 break;
3838 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
3839 ret = i40e_vc_config_queues_msg(vf, msg);
3840 break;
3841 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
3842 ret = i40e_vc_config_irq_map_msg(vf, msg);
3843 break;
3844 case VIRTCHNL_OP_ENABLE_QUEUES:
3845 ret = i40e_vc_enable_queues_msg(vf, msg);
3846 i40e_vc_notify_vf_link_state(vf);
3847 break;
3848 case VIRTCHNL_OP_DISABLE_QUEUES:
3849 ret = i40e_vc_disable_queues_msg(vf, msg);
3850 break;
3851 case VIRTCHNL_OP_ADD_ETH_ADDR:
3852 ret = i40e_vc_add_mac_addr_msg(vf, msg);
3853 break;
3854 case VIRTCHNL_OP_DEL_ETH_ADDR:
3855 ret = i40e_vc_del_mac_addr_msg(vf, msg);
3856 break;
3857 case VIRTCHNL_OP_ADD_VLAN:
3858 ret = i40e_vc_add_vlan_msg(vf, msg);
3859 break;
3860 case VIRTCHNL_OP_DEL_VLAN:
3861 ret = i40e_vc_remove_vlan_msg(vf, msg);
3862 break;
3863 case VIRTCHNL_OP_GET_STATS:
3864 ret = i40e_vc_get_stats_msg(vf, msg);
3865 break;
3866 case VIRTCHNL_OP_IWARP:
3867 ret = i40e_vc_iwarp_msg(vf, msg, msglen);
3868 break;
3869 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
3870 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true);
3871 break;
3872 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
3873 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false);
3874 break;
3875 case VIRTCHNL_OP_CONFIG_RSS_KEY:
3876 ret = i40e_vc_config_rss_key(vf, msg);
3877 break;
3878 case VIRTCHNL_OP_CONFIG_RSS_LUT:
3879 ret = i40e_vc_config_rss_lut(vf, msg);
3880 break;
3881 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
3882 ret = i40e_vc_get_rss_hena(vf, msg);
3883 break;
3884 case VIRTCHNL_OP_SET_RSS_HENA:
3885 ret = i40e_vc_set_rss_hena(vf, msg);
3886 break;
3887 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
3888 ret = i40e_vc_enable_vlan_stripping(vf, msg);
3889 break;
3890 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
3891 ret = i40e_vc_disable_vlan_stripping(vf, msg);
3892 break;
3893 case VIRTCHNL_OP_REQUEST_QUEUES:
3894 ret = i40e_vc_request_queues_msg(vf, msg);
3895 break;
3896 case VIRTCHNL_OP_ENABLE_CHANNELS:
3897 ret = i40e_vc_add_qch_msg(vf, msg);
3898 break;
3899 case VIRTCHNL_OP_DISABLE_CHANNELS:
3900 ret = i40e_vc_del_qch_msg(vf, msg);
3901 break;
3902 case VIRTCHNL_OP_ADD_CLOUD_FILTER:
3903 ret = i40e_vc_add_cloud_filter(vf, msg);
3904 break;
3905 case VIRTCHNL_OP_DEL_CLOUD_FILTER:
3906 ret = i40e_vc_del_cloud_filter(vf, msg);
3907 break;
3908 case VIRTCHNL_OP_UNKNOWN:
3909 default:
3910 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
3911 v_opcode, local_vf_id);
3912 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
3913 I40E_ERR_NOT_IMPLEMENTED);
3914 break;
3915 }
3916
3917 return ret;
3918}
3919
3920/**
3921 * i40e_vc_process_vflr_event
3922 * @pf: pointer to the PF structure
3923 *
3924 * called from the vlfr irq handler to
3925 * free up VF resources and state variables
3926 **/
3927int i40e_vc_process_vflr_event(struct i40e_pf *pf)
3928{
3929 struct i40e_hw *hw = &pf->hw;
3930 u32 reg, reg_idx, bit_idx;
3931 struct i40e_vf *vf;
3932 int vf_id;
3933
3934 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state))
3935 return 0;
3936
3937 /* Re-enable the VFLR interrupt cause here, before looking for which
3938 * VF got reset. Otherwise, if another VF gets a reset while the
3939 * first one is being processed, that interrupt will be lost, and
3940 * that VF will be stuck in reset forever.
3941 */
3942 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
3943 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
3944 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
3945 i40e_flush(hw);
3946
3947 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state);
3948 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
3949 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
3950 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
3951 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
3952 vf = &pf->vf[vf_id];
3953 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
3954 if (reg & BIT(bit_idx))
3955 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
3956 i40e_reset_vf(vf, true);
3957 }
3958
3959 return 0;
3960}
3961
3962/**
3963 * i40e_validate_vf
3964 * @pf: the physical function
3965 * @vf_id: VF identifier
3966 *
3967 * Check that the VF is enabled and the VSI exists.
3968 *
3969 * Returns 0 on success, negative on failure
3970 **/
3971static int i40e_validate_vf(struct i40e_pf *pf, int vf_id)
3972{
3973 struct i40e_vsi *vsi;
3974 struct i40e_vf *vf;
3975 int ret = 0;
3976
3977 if (vf_id >= pf->num_alloc_vfs) {
3978 dev_err(&pf->pdev->dev,
3979 "Invalid VF Identifier %d\n", vf_id);
3980 ret = -EINVAL;
3981 goto err_out;
3982 }
3983 vf = &pf->vf[vf_id];
3984 vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id);
3985 if (!vsi)
3986 ret = -EINVAL;
3987err_out:
3988 return ret;
3989}
3990
3991/**
3992 * i40e_ndo_set_vf_mac
3993 * @netdev: network interface device structure
3994 * @vf_id: VF identifier
3995 * @mac: mac address
3996 *
3997 * program VF mac address
3998 **/
3999int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
4000{
4001 struct i40e_netdev_priv *np = netdev_priv(netdev);
4002 struct i40e_vsi *vsi = np->vsi;
4003 struct i40e_pf *pf = vsi->back;
4004 struct i40e_mac_filter *f;
4005 struct i40e_vf *vf;
4006 int ret = 0;
4007 struct hlist_node *h;
4008 int bkt;
4009 u8 i;
4010
4011 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4012 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4013 return -EAGAIN;
4014 }
4015
4016 /* validate the request */
4017 ret = i40e_validate_vf(pf, vf_id);
4018 if (ret)
4019 goto error_param;
4020
4021 vf = &pf->vf[vf_id];
4022 vsi = pf->vsi[vf->lan_vsi_idx];
4023
4024 /* When the VF is resetting wait until it is done.
4025 * It can take up to 200 milliseconds,
4026 * but wait for up to 300 milliseconds to be safe.
4027 * If the VF is indeed in reset, the vsi pointer has
4028 * to show on the newly loaded vsi under pf->vsi[id].
4029 */
4030 for (i = 0; i < 15; i++) {
4031 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4032 if (i > 0)
4033 vsi = pf->vsi[vf->lan_vsi_idx];
4034 break;
4035 }
4036 msleep(20);
4037 }
4038 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4039 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4040 vf_id);
4041 ret = -EAGAIN;
4042 goto error_param;
4043 }
4044
4045 if (is_multicast_ether_addr(mac)) {
4046 dev_err(&pf->pdev->dev,
4047 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
4048 ret = -EINVAL;
4049 goto error_param;
4050 }
4051
4052 /* Lock once because below invoked function add/del_filter requires
4053 * mac_filter_hash_lock to be held
4054 */
4055 spin_lock_bh(&vsi->mac_filter_hash_lock);
4056
4057 /* delete the temporary mac address */
4058 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
4059 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
4060
4061 /* Delete all the filters for this VSI - we're going to kill it
4062 * anyway.
4063 */
4064 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
4065 __i40e_del_filter(vsi, f);
4066
4067 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4068
4069 /* program mac filter */
4070 if (i40e_sync_vsi_filters(vsi)) {
4071 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
4072 ret = -EIO;
4073 goto error_param;
4074 }
4075 ether_addr_copy(vf->default_lan_addr.addr, mac);
4076
4077 if (is_zero_ether_addr(mac)) {
4078 vf->pf_set_mac = false;
4079 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id);
4080 } else {
4081 vf->pf_set_mac = true;
4082 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n",
4083 mac, vf_id);
4084 }
4085
4086 /* Force the VF interface down so it has to bring up with new MAC
4087 * address
4088 */
4089 i40e_vc_disable_vf(vf);
4090 dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n");
4091
4092error_param:
4093 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4094 return ret;
4095}
4096
4097/**
4098 * i40e_vsi_has_vlans - True if VSI has configured VLANs
4099 * @vsi: pointer to the vsi
4100 *
4101 * Check if a VSI has configured any VLANs. False if we have a port VLAN or if
4102 * we have no configured VLANs. Do not call while holding the
4103 * mac_filter_hash_lock.
4104 */
4105static bool i40e_vsi_has_vlans(struct i40e_vsi *vsi)
4106{
4107 bool have_vlans;
4108
4109 /* If we have a port VLAN, then the VSI cannot have any VLANs
4110 * configured, as all MAC/VLAN filters will be assigned to the PVID.
4111 */
4112 if (vsi->info.pvid)
4113 return false;
4114
4115 /* Since we don't have a PVID, we know that if the device is in VLAN
4116 * mode it must be because of a VLAN filter configured on this VSI.
4117 */
4118 spin_lock_bh(&vsi->mac_filter_hash_lock);
4119 have_vlans = i40e_is_vsi_in_vlan(vsi);
4120 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4121
4122 return have_vlans;
4123}
4124
4125/**
4126 * i40e_ndo_set_vf_port_vlan
4127 * @netdev: network interface device structure
4128 * @vf_id: VF identifier
4129 * @vlan_id: mac address
4130 * @qos: priority setting
4131 * @vlan_proto: vlan protocol
4132 *
4133 * program VF vlan id and/or qos
4134 **/
4135int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
4136 u16 vlan_id, u8 qos, __be16 vlan_proto)
4137{
4138 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
4139 struct i40e_netdev_priv *np = netdev_priv(netdev);
4140 bool allmulti = false, alluni = false;
4141 struct i40e_pf *pf = np->vsi->back;
4142 struct i40e_vsi *vsi;
4143 struct i40e_vf *vf;
4144 int ret = 0;
4145
4146 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4147 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4148 return -EAGAIN;
4149 }
4150
4151 /* validate the request */
4152 ret = i40e_validate_vf(pf, vf_id);
4153 if (ret)
4154 goto error_pvid;
4155
4156 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
4157 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
4158 ret = -EINVAL;
4159 goto error_pvid;
4160 }
4161
4162 if (vlan_proto != htons(ETH_P_8021Q)) {
4163 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
4164 ret = -EPROTONOSUPPORT;
4165 goto error_pvid;
4166 }
4167
4168 vf = &pf->vf[vf_id];
4169 vsi = pf->vsi[vf->lan_vsi_idx];
4170 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4171 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4172 vf_id);
4173 ret = -EAGAIN;
4174 goto error_pvid;
4175 }
4176
4177 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
4178 /* duplicate request, so just return success */
4179 goto error_pvid;
4180
4181 if (i40e_vsi_has_vlans(vsi)) {
4182 dev_err(&pf->pdev->dev,
4183 "VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n",
4184 vf_id);
4185 /* Administrator Error - knock the VF offline until he does
4186 * the right thing by reconfiguring his network correctly
4187 * and then reloading the VF driver.
4188 */
4189 i40e_vc_disable_vf(vf);
4190 /* During reset the VF got a new VSI, so refresh the pointer. */
4191 vsi = pf->vsi[vf->lan_vsi_idx];
4192 }
4193
4194 /* Locked once because multiple functions below iterate list */
4195 spin_lock_bh(&vsi->mac_filter_hash_lock);
4196
4197 /* Check for condition where there was already a port VLAN ID
4198 * filter set and now it is being deleted by setting it to zero.
4199 * Additionally check for the condition where there was a port
4200 * VLAN but now there is a new and different port VLAN being set.
4201 * Before deleting all the old VLAN filters we must add new ones
4202 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
4203 * MAC addresses deleted.
4204 */
4205 if ((!(vlan_id || qos) ||
4206 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
4207 vsi->info.pvid) {
4208 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
4209 if (ret) {
4210 dev_info(&vsi->back->pdev->dev,
4211 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4212 vsi->back->hw.aq.asq_last_status);
4213 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4214 goto error_pvid;
4215 }
4216 }
4217
4218 if (vsi->info.pvid) {
4219 /* remove all filters on the old VLAN */
4220 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &
4221 VLAN_VID_MASK));
4222 }
4223
4224 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4225
4226 /* disable promisc modes in case they were enabled */
4227 ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id,
4228 allmulti, alluni);
4229 if (ret) {
4230 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n");
4231 goto error_pvid;
4232 }
4233
4234 if (vlan_id || qos)
4235 ret = i40e_vsi_add_pvid(vsi, vlanprio);
4236 else
4237 i40e_vsi_remove_pvid(vsi);
4238 spin_lock_bh(&vsi->mac_filter_hash_lock);
4239
4240 if (vlan_id) {
4241 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
4242 vlan_id, qos, vf_id);
4243
4244 /* add new VLAN filter for each MAC */
4245 ret = i40e_add_vlan_all_mac(vsi, vlan_id);
4246 if (ret) {
4247 dev_info(&vsi->back->pdev->dev,
4248 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4249 vsi->back->hw.aq.asq_last_status);
4250 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4251 goto error_pvid;
4252 }
4253
4254 /* remove the previously added non-VLAN MAC filters */
4255 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
4256 }
4257
4258 spin_unlock_bh(&vsi->mac_filter_hash_lock);
4259
4260 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
4261 alluni = true;
4262
4263 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
4264 allmulti = true;
4265
4266 /* Schedule the worker thread to take care of applying changes */
4267 i40e_service_event_schedule(vsi->back);
4268
4269 if (ret) {
4270 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
4271 goto error_pvid;
4272 }
4273
4274 /* The Port VLAN needs to be saved across resets the same as the
4275 * default LAN MAC address.
4276 */
4277 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
4278
4279 ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni);
4280 if (ret) {
4281 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n");
4282 goto error_pvid;
4283 }
4284
4285 ret = 0;
4286
4287error_pvid:
4288 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4289 return ret;
4290}
4291
4292/**
4293 * i40e_ndo_set_vf_bw
4294 * @netdev: network interface device structure
4295 * @vf_id: VF identifier
4296 * @min_tx_rate: Minimum Tx rate
4297 * @max_tx_rate: Maximum Tx rate
4298 *
4299 * configure VF Tx rate
4300 **/
4301int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
4302 int max_tx_rate)
4303{
4304 struct i40e_netdev_priv *np = netdev_priv(netdev);
4305 struct i40e_pf *pf = np->vsi->back;
4306 struct i40e_vsi *vsi;
4307 struct i40e_vf *vf;
4308 int ret = 0;
4309
4310 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4311 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4312 return -EAGAIN;
4313 }
4314
4315 /* validate the request */
4316 ret = i40e_validate_vf(pf, vf_id);
4317 if (ret)
4318 goto error;
4319
4320 if (min_tx_rate) {
4321 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
4322 min_tx_rate, vf_id);
4323 ret = -EINVAL;
4324 goto error;
4325 }
4326
4327 vf = &pf->vf[vf_id];
4328 vsi = pf->vsi[vf->lan_vsi_idx];
4329 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4330 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4331 vf_id);
4332 ret = -EAGAIN;
4333 goto error;
4334 }
4335
4336 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate);
4337 if (ret)
4338 goto error;
4339
4340 vf->tx_rate = max_tx_rate;
4341error:
4342 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4343 return ret;
4344}
4345
4346/**
4347 * i40e_ndo_get_vf_config
4348 * @netdev: network interface device structure
4349 * @vf_id: VF identifier
4350 * @ivi: VF configuration structure
4351 *
4352 * return VF configuration
4353 **/
4354int i40e_ndo_get_vf_config(struct net_device *netdev,
4355 int vf_id, struct ifla_vf_info *ivi)
4356{
4357 struct i40e_netdev_priv *np = netdev_priv(netdev);
4358 struct i40e_vsi *vsi = np->vsi;
4359 struct i40e_pf *pf = vsi->back;
4360 struct i40e_vf *vf;
4361 int ret = 0;
4362
4363 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4364 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4365 return -EAGAIN;
4366 }
4367
4368 /* validate the request */
4369 ret = i40e_validate_vf(pf, vf_id);
4370 if (ret)
4371 goto error_param;
4372
4373 vf = &pf->vf[vf_id];
4374 /* first vsi is always the LAN vsi */
4375 vsi = pf->vsi[vf->lan_vsi_idx];
4376 if (!vsi) {
4377 ret = -ENOENT;
4378 goto error_param;
4379 }
4380
4381 ivi->vf = vf_id;
4382
4383 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
4384
4385 ivi->max_tx_rate = vf->tx_rate;
4386 ivi->min_tx_rate = 0;
4387 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
4388 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
4389 I40E_VLAN_PRIORITY_SHIFT;
4390 if (vf->link_forced == false)
4391 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
4392 else if (vf->link_up == true)
4393 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
4394 else
4395 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
4396 ivi->spoofchk = vf->spoofchk;
4397 ivi->trusted = vf->trusted;
4398 ret = 0;
4399
4400error_param:
4401 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4402 return ret;
4403}
4404
4405/**
4406 * i40e_ndo_set_vf_link_state
4407 * @netdev: network interface device structure
4408 * @vf_id: VF identifier
4409 * @link: required link state
4410 *
4411 * Set the link state of a specified VF, regardless of physical link state
4412 **/
4413int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
4414{
4415 struct i40e_netdev_priv *np = netdev_priv(netdev);
4416 struct i40e_pf *pf = np->vsi->back;
4417 struct virtchnl_pf_event pfe;
4418 struct i40e_hw *hw = &pf->hw;
4419 struct i40e_vf *vf;
4420 int abs_vf_id;
4421 int ret = 0;
4422
4423 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4424 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4425 return -EAGAIN;
4426 }
4427
4428 /* validate the request */
4429 if (vf_id >= pf->num_alloc_vfs) {
4430 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4431 ret = -EINVAL;
4432 goto error_out;
4433 }
4434
4435 vf = &pf->vf[vf_id];
4436 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
4437
4438 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
4439 pfe.severity = PF_EVENT_SEVERITY_INFO;
4440
4441 switch (link) {
4442 case IFLA_VF_LINK_STATE_AUTO:
4443 vf->link_forced = false;
4444 pfe.event_data.link_event.link_status =
4445 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
4446 pfe.event_data.link_event.link_speed =
4447 (enum virtchnl_link_speed)
4448 pf->hw.phy.link_info.link_speed;
4449 break;
4450 case IFLA_VF_LINK_STATE_ENABLE:
4451 vf->link_forced = true;
4452 vf->link_up = true;
4453 pfe.event_data.link_event.link_status = true;
4454 pfe.event_data.link_event.link_speed = VIRTCHNL_LINK_SPEED_40GB;
4455 break;
4456 case IFLA_VF_LINK_STATE_DISABLE:
4457 vf->link_forced = true;
4458 vf->link_up = false;
4459 pfe.event_data.link_event.link_status = false;
4460 pfe.event_data.link_event.link_speed = 0;
4461 break;
4462 default:
4463 ret = -EINVAL;
4464 goto error_out;
4465 }
4466 /* Notify the VF of its new link state */
4467 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
4468 0, (u8 *)&pfe, sizeof(pfe), NULL);
4469
4470error_out:
4471 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4472 return ret;
4473}
4474
4475/**
4476 * i40e_ndo_set_vf_spoofchk
4477 * @netdev: network interface device structure
4478 * @vf_id: VF identifier
4479 * @enable: flag to enable or disable feature
4480 *
4481 * Enable or disable VF spoof checking
4482 **/
4483int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
4484{
4485 struct i40e_netdev_priv *np = netdev_priv(netdev);
4486 struct i40e_vsi *vsi = np->vsi;
4487 struct i40e_pf *pf = vsi->back;
4488 struct i40e_vsi_context ctxt;
4489 struct i40e_hw *hw = &pf->hw;
4490 struct i40e_vf *vf;
4491 int ret = 0;
4492
4493 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4494 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4495 return -EAGAIN;
4496 }
4497
4498 /* validate the request */
4499 if (vf_id >= pf->num_alloc_vfs) {
4500 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4501 ret = -EINVAL;
4502 goto out;
4503 }
4504
4505 vf = &(pf->vf[vf_id]);
4506 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4507 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4508 vf_id);
4509 ret = -EAGAIN;
4510 goto out;
4511 }
4512
4513 if (enable == vf->spoofchk)
4514 goto out;
4515
4516 vf->spoofchk = enable;
4517 memset(&ctxt, 0, sizeof(ctxt));
4518 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
4519 ctxt.pf_num = pf->hw.pf_id;
4520 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
4521 if (enable)
4522 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
4523 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
4524 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
4525 if (ret) {
4526 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
4527 ret);
4528 ret = -EIO;
4529 }
4530out:
4531 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4532 return ret;
4533}
4534
4535/**
4536 * i40e_ndo_set_vf_trust
4537 * @netdev: network interface device structure of the pf
4538 * @vf_id: VF identifier
4539 * @setting: trust setting
4540 *
4541 * Enable or disable VF trust setting
4542 **/
4543int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
4544{
4545 struct i40e_netdev_priv *np = netdev_priv(netdev);
4546 struct i40e_pf *pf = np->vsi->back;
4547 struct i40e_vf *vf;
4548 int ret = 0;
4549
4550 if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4551 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4552 return -EAGAIN;
4553 }
4554
4555 /* validate the request */
4556 if (vf_id >= pf->num_alloc_vfs) {
4557 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4558 ret = -EINVAL;
4559 goto out;
4560 }
4561
4562 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4563 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
4564 ret = -EINVAL;
4565 goto out;
4566 }
4567
4568 vf = &pf->vf[vf_id];
4569
4570 if (setting == vf->trusted)
4571 goto out;
4572
4573 vf->trusted = setting;
4574 i40e_vc_disable_vf(vf);
4575 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
4576 vf_id, setting ? "" : "un");
4577
4578 if (vf->adq_enabled) {
4579 if (!vf->trusted) {
4580 dev_info(&pf->pdev->dev,
4581 "VF %u no longer Trusted, deleting all cloud filters\n",
4582 vf_id);
4583 i40e_del_all_cloud_filters(vf);
4584 }
4585 }
4586
4587out:
4588 clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4589 return ret;
4590}
4591
4592/**
4593 * i40e_get_vf_stats - populate some stats for the VF
4594 * @netdev: the netdev of the PF
4595 * @vf_id: the host OS identifier (0-127)
4596 * @vf_stats: pointer to the OS memory to be initialized
4597 */
4598int i40e_get_vf_stats(struct net_device *netdev, int vf_id,
4599 struct ifla_vf_stats *vf_stats)
4600{
4601 struct i40e_netdev_priv *np = netdev_priv(netdev);
4602 struct i40e_pf *pf = np->vsi->back;
4603 struct i40e_eth_stats *stats;
4604 struct i40e_vsi *vsi;
4605 struct i40e_vf *vf;
4606
4607 /* validate the request */
4608 if (i40e_validate_vf(pf, vf_id))
4609 return -EINVAL;
4610
4611 vf = &pf->vf[vf_id];
4612 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4613 dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id);
4614 return -EBUSY;
4615 }
4616
4617 vsi = pf->vsi[vf->lan_vsi_idx];
4618 if (!vsi)
4619 return -EINVAL;
4620
4621 i40e_update_eth_stats(vsi);
4622 stats = &vsi->eth_stats;
4623
4624 memset(vf_stats, 0, sizeof(*vf_stats));
4625
4626 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast +
4627 stats->rx_multicast;
4628 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast +
4629 stats->tx_multicast;
4630 vf_stats->rx_bytes = stats->rx_bytes;
4631 vf_stats->tx_bytes = stats->tx_bytes;
4632 vf_stats->broadcast = stats->rx_broadcast;
4633 vf_stats->multicast = stats->rx_multicast;
4634 vf_stats->rx_dropped = stats->rx_discards;
4635 vf_stats->tx_dropped = stats->tx_discards;
4636
4637 return 0;
4638}