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staging: rtl8188eu: Replace function name in string with __func__
[linux/fpc-iii.git] / drivers / net / ethernet / intel / i40e / i40e_virtchnl_pf.c
blobe9309fb9084b9679cef0d540ac4c2a42c698cc0c
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 **/
41 static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
42 enum 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 + (int)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_STATE_INIT, &vf->vf_states) &&
54 !test_bit(I40E_VF_STATE_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_vf_link_state
67 * @vf: pointer to the VF structure
68 *
69 * send a link status message to a single VF
70 **/
71 static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
72 {
73 struct 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 + (int)hw->func_caps.vf_base_id;
78
79 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
80 pfe.severity = 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 ? VIRTCHNL_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 =
89 i40e_virtchnl_link_speed(ls->link_speed);
90 }
91 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
92 0, (u8 *)&pfe, sizeof(pfe), NULL);
93 }
94
95 /**
96 * i40e_vc_notify_link_state
97 * @pf: pointer to the PF structure
98 *
99 * send a link status message to all VFs on a given PF
100 **/
101 void i40e_vc_notify_link_state(struct i40e_pf *pf)
102 {
103 int i;
104
105 for (i = 0; i < pf->num_alloc_vfs; i++)
106 i40e_vc_notify_vf_link_state(&pf->vf[i]);
107 }
108
109 /**
110 * i40e_vc_notify_reset
111 * @pf: pointer to the PF structure
112 *
113 * indicate a pending reset to all VFs on a given PF
114 **/
115 void i40e_vc_notify_reset(struct i40e_pf *pf)
116 {
117 struct virtchnl_pf_event pfe;
118
119 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
120 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
121 i40e_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, 0,
122 (u8 *)&pfe, sizeof(struct virtchnl_pf_event));
123 }
124
125 /**
126 * i40e_vc_notify_vf_reset
127 * @vf: pointer to the VF structure
128 *
129 * indicate a pending reset to the given VF
130 **/
131 void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
132 {
133 struct virtchnl_pf_event pfe;
134 int abs_vf_id;
135
136 /* validate the request */
137 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
138 return;
139
140 /* verify if the VF is in either init or active before proceeding */
141 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) &&
142 !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
143 return;
144
145 abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id;
146
147 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
148 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
149 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, VIRTCHNL_OP_EVENT,
150 0, (u8 *)&pfe,
151 sizeof(struct virtchnl_pf_event), NULL);
152 }
153 /***********************misc routines*****************************/
154
155 /**
156 * i40e_vc_disable_vf
157 * @vf: pointer to the VF info
158 *
159 * Disable the VF through a SW reset.
160 **/
161 static inline void i40e_vc_disable_vf(struct i40e_vf *vf)
162 {
163 int i;
164
165 i40e_vc_notify_vf_reset(vf);
166
167 /* We want to ensure that an actual reset occurs initiated after this
168 * function was called. However, we do not want to wait forever, so
169 * we'll give a reasonable time and print a message if we failed to
170 * ensure a reset.
171 */
172 for (i = 0; i < 20; i++) {
173 if (i40e_reset_vf(vf, false))
174 return;
175 usleep_range(10000, 20000);
176 }
177
178 dev_warn(&vf->pf->pdev->dev,
179 "Failed to initiate reset for VF %d after 200 milliseconds\n",
180 vf->vf_id);
181 }
182
183 /**
184 * i40e_vc_isvalid_vsi_id
185 * @vf: pointer to the VF info
186 * @vsi_id: VF relative VSI id
187 *
188 * check for the valid VSI id
189 **/
190 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
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 && (vsi->vf_id == vf->vf_id));
196 }
197
198 /**
199 * i40e_vc_isvalid_queue_id
200 * @vf: pointer to the VF info
201 * @vsi_id: vsi id
202 * @qid: vsi relative queue id
203 *
204 * check for the valid queue id
205 **/
206 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
207 u8 qid)
208 {
209 struct i40e_pf *pf = vf->pf;
210 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
211
212 return (vsi && (qid < vsi->alloc_queue_pairs));
213 }
214
215 /**
216 * i40e_vc_isvalid_vector_id
217 * @vf: pointer to the VF info
218 * @vector_id: VF relative vector id
219 *
220 * check for the valid vector id
221 **/
222 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
223 {
224 struct i40e_pf *pf = vf->pf;
225
226 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
227 }
228
229 /***********************vf resource mgmt routines*****************/
230
231 /**
232 * i40e_vc_get_pf_queue_id
233 * @vf: pointer to the VF info
234 * @vsi_id: id of VSI as provided by the FW
235 * @vsi_queue_id: vsi relative queue id
236 *
237 * return PF relative queue id
238 **/
239 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
240 u8 vsi_queue_id)
241 {
242 struct i40e_pf *pf = vf->pf;
243 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
244 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
245
246 if (!vsi)
247 return pf_queue_id;
248
249 if (le16_to_cpu(vsi->info.mapping_flags) &
250 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
251 pf_queue_id =
252 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
253 else
254 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
255 vsi_queue_id;
256
257 return pf_queue_id;
258 }
259
260 /**
261 * i40e_config_irq_link_list
262 * @vf: pointer to the VF info
263 * @vsi_id: id of VSI as given by the FW
264 * @vecmap: irq map info
265 *
266 * configure irq link list from the map
267 **/
268 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
269 struct virtchnl_vector_map *vecmap)
270 {
271 unsigned long linklistmap = 0, tempmap;
272 struct i40e_pf *pf = vf->pf;
273 struct i40e_hw *hw = &pf->hw;
274 u16 vsi_queue_id, pf_queue_id;
275 enum i40e_queue_type qtype;
276 u16 next_q, vector_id, size;
277 u32 reg, reg_idx;
278 u16 itr_idx = 0;
279
280 vector_id = vecmap->vector_id;
281 /* setup the head */
282 if (0 == vector_id)
283 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
284 else
285 reg_idx = I40E_VPINT_LNKLSTN(
286 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
287 (vector_id - 1));
288
289 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
290 /* Special case - No queues mapped on this vector */
291 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
292 goto irq_list_done;
293 }
294 tempmap = vecmap->rxq_map;
295 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
296 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
297 vsi_queue_id));
298 }
299
300 tempmap = vecmap->txq_map;
301 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
302 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
303 vsi_queue_id + 1));
304 }
305
306 size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES;
307 next_q = find_first_bit(&linklistmap, size);
308 if (unlikely(next_q == size))
309 goto irq_list_done;
310
311 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
312 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
313 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
314 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
315
316 wr32(hw, reg_idx, reg);
317
318 while (next_q < size) {
319 switch (qtype) {
320 case I40E_QUEUE_TYPE_RX:
321 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
322 itr_idx = vecmap->rxitr_idx;
323 break;
324 case I40E_QUEUE_TYPE_TX:
325 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
326 itr_idx = vecmap->txitr_idx;
327 break;
328 default:
329 break;
330 }
331
332 next_q = find_next_bit(&linklistmap, size, next_q + 1);
333 if (next_q < size) {
334 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
335 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
336 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id,
337 vsi_queue_id);
338 } else {
339 pf_queue_id = I40E_QUEUE_END_OF_LIST;
340 qtype = 0;
341 }
342
343 /* format for the RQCTL & TQCTL regs is same */
344 reg = (vector_id) |
345 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
346 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
347 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
348 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
349 wr32(hw, reg_idx, reg);
350 }
351
352 /* if the vf is running in polling mode and using interrupt zero,
353 * need to disable auto-mask on enabling zero interrupt for VFs.
354 */
355 if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
356 (vector_id == 0)) {
357 reg = rd32(hw, I40E_GLINT_CTL);
358 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {
359 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;
360 wr32(hw, I40E_GLINT_CTL, reg);
361 }
362 }
363
364 irq_list_done:
365 i40e_flush(hw);
366 }
367
368 /**
369 * i40e_release_iwarp_qvlist
370 * @vf: pointer to the VF.
371 *
372 **/
373 static void i40e_release_iwarp_qvlist(struct i40e_vf *vf)
374 {
375 struct i40e_pf *pf = vf->pf;
376 struct virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info;
377 u32 msix_vf;
378 u32 i;
379
380 if (!vf->qvlist_info)
381 return;
382
383 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
384 for (i = 0; i < qvlist_info->num_vectors; i++) {
385 struct virtchnl_iwarp_qv_info *qv_info;
386 u32 next_q_index, next_q_type;
387 struct i40e_hw *hw = &pf->hw;
388 u32 v_idx, reg_idx, reg;
389
390 qv_info = &qvlist_info->qv_info[i];
391 if (!qv_info)
392 continue;
393 v_idx = qv_info->v_idx;
394 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
395 /* Figure out the queue after CEQ and make that the
396 * first queue.
397 */
398 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
399 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
400 next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK)
401 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT;
402 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK)
403 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT;
404
405 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
406 reg = (next_q_index &
407 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
408 (next_q_type <<
409 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
410
411 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
412 }
413 }
414 kfree(vf->qvlist_info);
415 vf->qvlist_info = NULL;
416 }
417
418 /**
419 * i40e_config_iwarp_qvlist
420 * @vf: pointer to the VF info
421 * @qvlist_info: queue and vector list
422 *
423 * Return 0 on success or < 0 on error
424 **/
425 static int i40e_config_iwarp_qvlist(struct i40e_vf *vf,
426 struct virtchnl_iwarp_qvlist_info *qvlist_info)
427 {
428 struct i40e_pf *pf = vf->pf;
429 struct i40e_hw *hw = &pf->hw;
430 struct virtchnl_iwarp_qv_info *qv_info;
431 u32 v_idx, i, reg_idx, reg;
432 u32 next_q_idx, next_q_type;
433 u32 msix_vf, size;
434
435 size = sizeof(struct virtchnl_iwarp_qvlist_info) +
436 (sizeof(struct virtchnl_iwarp_qv_info) *
437 (qvlist_info->num_vectors - 1));
438 vf->qvlist_info = kzalloc(size, GFP_KERNEL);
439 if (!vf->qvlist_info)
440 return -ENOMEM;
441
442 vf->qvlist_info->num_vectors = qvlist_info->num_vectors;
443
444 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
445 for (i = 0; i < qvlist_info->num_vectors; i++) {
446 qv_info = &qvlist_info->qv_info[i];
447 if (!qv_info)
448 continue;
449 v_idx = qv_info->v_idx;
450
451 /* Validate vector id belongs to this vf */
452 if (!i40e_vc_isvalid_vector_id(vf, v_idx))
453 goto err;
454
455 vf->qvlist_info->qv_info[i] = *qv_info;
456
457 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
458 /* We might be sharing the interrupt, so get the first queue
459 * index and type, push it down the list by adding the new
460 * queue on top. Also link it with the new queue in CEQCTL.
461 */
462 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
463 next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >>
464 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT);
465 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >>
466 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
467
468 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
469 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
470 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |
471 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |
472 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |
473 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |
474 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));
475 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);
476
477 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
478 reg = (qv_info->ceq_idx &
479 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
480 (I40E_QUEUE_TYPE_PE_CEQ <<
481 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
482 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
483 }
484
485 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
486 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |
487 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |
488 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));
489
490 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);
491 }
492 }
493
494 return 0;
495 err:
496 kfree(vf->qvlist_info);
497 vf->qvlist_info = NULL;
498 return -EINVAL;
499 }
500
501 /**
502 * i40e_config_vsi_tx_queue
503 * @vf: pointer to the VF info
504 * @vsi_id: id of VSI as provided by the FW
505 * @vsi_queue_id: vsi relative queue index
506 * @info: config. info
507 *
508 * configure tx queue
509 **/
510 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
511 u16 vsi_queue_id,
512 struct virtchnl_txq_info *info)
513 {
514 struct i40e_pf *pf = vf->pf;
515 struct i40e_hw *hw = &pf->hw;
516 struct i40e_hmc_obj_txq tx_ctx;
517 struct i40e_vsi *vsi;
518 u16 pf_queue_id;
519 u32 qtx_ctl;
520 int ret = 0;
521
522 if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
523 ret = -ENOENT;
524 goto error_context;
525 }
526 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
527 vsi = i40e_find_vsi_from_id(pf, vsi_id);
528 if (!vsi) {
529 ret = -ENOENT;
530 goto error_context;
531 }
532
533 /* clear the context structure first */
534 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
535
536 /* only set the required fields */
537 tx_ctx.base = info->dma_ring_addr / 128;
538 tx_ctx.qlen = info->ring_len;
539 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
540 tx_ctx.rdylist_act = 0;
541 tx_ctx.head_wb_ena = info->headwb_enabled;
542 tx_ctx.head_wb_addr = info->dma_headwb_addr;
543
544 /* clear the context in the HMC */
545 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
546 if (ret) {
547 dev_err(&pf->pdev->dev,
548 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
549 pf_queue_id, ret);
550 ret = -ENOENT;
551 goto error_context;
552 }
553
554 /* set the context in the HMC */
555 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
556 if (ret) {
557 dev_err(&pf->pdev->dev,
558 "Failed to set VF LAN Tx queue context %d error: %d\n",
559 pf_queue_id, ret);
560 ret = -ENOENT;
561 goto error_context;
562 }
563
564 /* associate this queue with the PCI VF function */
565 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
566 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
567 & I40E_QTX_CTL_PF_INDX_MASK);
568 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
569 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
570 & I40E_QTX_CTL_VFVM_INDX_MASK);
571 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
572 i40e_flush(hw);
573
574 error_context:
575 return ret;
576 }
577
578 /**
579 * i40e_config_vsi_rx_queue
580 * @vf: pointer to the VF info
581 * @vsi_id: id of VSI as provided by the FW
582 * @vsi_queue_id: vsi relative queue index
583 * @info: config. info
584 *
585 * configure rx queue
586 **/
587 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
588 u16 vsi_queue_id,
589 struct virtchnl_rxq_info *info)
590 {
591 struct i40e_pf *pf = vf->pf;
592 struct i40e_hw *hw = &pf->hw;
593 struct i40e_hmc_obj_rxq rx_ctx;
594 u16 pf_queue_id;
595 int ret = 0;
596
597 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
598
599 /* clear the context structure first */
600 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
601
602 /* only set the required fields */
603 rx_ctx.base = info->dma_ring_addr / 128;
604 rx_ctx.qlen = info->ring_len;
605
606 if (info->splithdr_enabled) {
607 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
608 I40E_RX_SPLIT_IP |
609 I40E_RX_SPLIT_TCP_UDP |
610 I40E_RX_SPLIT_SCTP;
611 /* header length validation */
612 if (info->hdr_size > ((2 * 1024) - 64)) {
613 ret = -EINVAL;
614 goto error_param;
615 }
616 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
617
618 /* set split mode 10b */
619 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;
620 }
621
622 /* databuffer length validation */
623 if (info->databuffer_size > ((16 * 1024) - 128)) {
624 ret = -EINVAL;
625 goto error_param;
626 }
627 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
628
629 /* max pkt. length validation */
630 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
631 ret = -EINVAL;
632 goto error_param;
633 }
634 rx_ctx.rxmax = info->max_pkt_size;
635
636 /* enable 32bytes desc always */
637 rx_ctx.dsize = 1;
638
639 /* default values */
640 rx_ctx.lrxqthresh = 1;
641 rx_ctx.crcstrip = 1;
642 rx_ctx.prefena = 1;
643 rx_ctx.l2tsel = 1;
644
645 /* clear the context in the HMC */
646 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
647 if (ret) {
648 dev_err(&pf->pdev->dev,
649 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
650 pf_queue_id, ret);
651 ret = -ENOENT;
652 goto error_param;
653 }
654
655 /* set the context in the HMC */
656 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
657 if (ret) {
658 dev_err(&pf->pdev->dev,
659 "Failed to set VF LAN Rx queue context %d error: %d\n",
660 pf_queue_id, ret);
661 ret = -ENOENT;
662 goto error_param;
663 }
664
665 error_param:
666 return ret;
667 }
668
669 /**
670 * i40e_alloc_vsi_res
671 * @vf: pointer to the VF info
672 * @type: type of VSI to allocate
673 *
674 * alloc VF vsi context & resources
675 **/
676 static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
677 {
678 struct i40e_mac_filter *f = NULL;
679 struct i40e_pf *pf = vf->pf;
680 struct i40e_vsi *vsi;
681 int ret = 0;
682
683 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
684
685 if (!vsi) {
686 dev_err(&pf->pdev->dev,
687 "add vsi failed for VF %d, aq_err %d\n",
688 vf->vf_id, pf->hw.aq.asq_last_status);
689 ret = -ENOENT;
690 goto error_alloc_vsi_res;
691 }
692 if (type == I40E_VSI_SRIOV) {
693 u64 hena = i40e_pf_get_default_rss_hena(pf);
694 u8 broadcast[ETH_ALEN];
695
696 vf->lan_vsi_idx = vsi->idx;
697 vf->lan_vsi_id = vsi->id;
698 /* If the port VLAN has been configured and then the
699 * VF driver was removed then the VSI port VLAN
700 * configuration was destroyed. Check if there is
701 * a port VLAN and restore the VSI configuration if
702 * needed.
703 */
704 if (vf->port_vlan_id)
705 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
706
707 spin_lock_bh(&vsi->mac_filter_hash_lock);
708 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
709 f = i40e_add_mac_filter(vsi,
710 vf->default_lan_addr.addr);
711 if (!f)
712 dev_info(&pf->pdev->dev,
713 "Could not add MAC filter %pM for VF %d\n",
714 vf->default_lan_addr.addr, vf->vf_id);
715 }
716 eth_broadcast_addr(broadcast);
717 f = i40e_add_mac_filter(vsi, broadcast);
718 if (!f)
719 dev_info(&pf->pdev->dev,
720 "Could not allocate VF broadcast filter\n");
721 spin_unlock_bh(&vsi->mac_filter_hash_lock);
722 wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena);
723 wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32));
724 }
725
726 /* program mac filter */
727 ret = i40e_sync_vsi_filters(vsi);
728 if (ret)
729 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
730
731 /* Set VF bandwidth if specified */
732 if (vf->tx_rate) {
733 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
734 vf->tx_rate / 50, 0, NULL);
735 if (ret)
736 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
737 vf->vf_id, ret);
738 }
739
740 error_alloc_vsi_res:
741 return ret;
742 }
743
744 /**
745 * i40e_enable_vf_mappings
746 * @vf: pointer to the VF info
747 *
748 * enable VF mappings
749 **/
750 static void i40e_enable_vf_mappings(struct i40e_vf *vf)
751 {
752 struct i40e_pf *pf = vf->pf;
753 struct i40e_hw *hw = &pf->hw;
754 u32 reg, total_queue_pairs = 0;
755 int j;
756
757 /* Tell the hardware we're using noncontiguous mapping. HW requires
758 * that VF queues be mapped using this method, even when they are
759 * contiguous in real life
760 */
761 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
762 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
763
764 /* enable VF vplan_qtable mappings */
765 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
766 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
767
768 /* map PF queues to VF queues */
769 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) {
770 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j);
771
772 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
773 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
774 total_queue_pairs++;
775 }
776
777 /* map PF queues to VSI */
778 for (j = 0; j < 7; j++) {
779 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) {
780 reg = 0x07FF07FF; /* unused */
781 } else {
782 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
783 j * 2);
784 reg = qid;
785 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
786 (j * 2) + 1);
787 reg |= qid << 16;
788 }
789 i40e_write_rx_ctl(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id),
790 reg);
791 }
792
793 i40e_flush(hw);
794 }
795
796 /**
797 * i40e_disable_vf_mappings
798 * @vf: pointer to the VF info
799 *
800 * disable VF mappings
801 **/
802 static void i40e_disable_vf_mappings(struct i40e_vf *vf)
803 {
804 struct i40e_pf *pf = vf->pf;
805 struct i40e_hw *hw = &pf->hw;
806 int i;
807
808 /* disable qp mappings */
809 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
810 for (i = 0; i < I40E_MAX_VSI_QP; i++)
811 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
812 I40E_QUEUE_END_OF_LIST);
813 i40e_flush(hw);
814 }
815
816 /**
817 * i40e_free_vf_res
818 * @vf: pointer to the VF info
819 *
820 * free VF resources
821 **/
822 static void i40e_free_vf_res(struct i40e_vf *vf)
823 {
824 struct i40e_pf *pf = vf->pf;
825 struct i40e_hw *hw = &pf->hw;
826 u32 reg_idx, reg;
827 int i, msix_vf;
828
829 /* Start by disabling VF's configuration API to prevent the OS from
830 * accessing the VF's VSI after it's freed / invalidated.
831 */
832 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
833
834 /* It's possible the VF had requeuested more queues than the default so
835 * do the accounting here when we're about to free them.
836 */
837 if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) {
838 pf->queues_left += vf->num_queue_pairs -
839 I40E_DEFAULT_QUEUES_PER_VF;
840 }
841
842 /* free vsi & disconnect it from the parent uplink */
843 if (vf->lan_vsi_idx) {
844 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
845 vf->lan_vsi_idx = 0;
846 vf->lan_vsi_id = 0;
847 vf->num_mac = 0;
848 }
849 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
850
851 /* disable interrupts so the VF starts in a known state */
852 for (i = 0; i < msix_vf; i++) {
853 /* format is same for both registers */
854 if (0 == i)
855 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
856 else
857 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
858 (vf->vf_id))
859 + (i - 1));
860 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
861 i40e_flush(hw);
862 }
863
864 /* clear the irq settings */
865 for (i = 0; i < msix_vf; i++) {
866 /* format is same for both registers */
867 if (0 == i)
868 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
869 else
870 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
871 (vf->vf_id))
872 + (i - 1));
873 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
874 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
875 wr32(hw, reg_idx, reg);
876 i40e_flush(hw);
877 }
878 /* reset some of the state variables keeping track of the resources */
879 vf->num_queue_pairs = 0;
880 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
881 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
882 }
883
884 /**
885 * i40e_alloc_vf_res
886 * @vf: pointer to the VF info
887 *
888 * allocate VF resources
889 **/
890 static int i40e_alloc_vf_res(struct i40e_vf *vf)
891 {
892 struct i40e_pf *pf = vf->pf;
893 int total_queue_pairs = 0;
894 int ret;
895
896 if (vf->num_req_queues &&
897 vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF)
898 pf->num_vf_qps = vf->num_req_queues;
899 else
900 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF;
901
902 /* allocate hw vsi context & associated resources */
903 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
904 if (ret)
905 goto error_alloc;
906 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
907
908 /* We account for each VF to get a default number of queue pairs. If
909 * the VF has now requested more, we need to account for that to make
910 * certain we never request more queues than we actually have left in
911 * HW.
912 */
913 if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF)
914 pf->queues_left -=
915 total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF;
916
917 if (vf->trusted)
918 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
919 else
920 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
921
922 /* store the total qps number for the runtime
923 * VF req validation
924 */
925 vf->num_queue_pairs = total_queue_pairs;
926
927 /* VF is now completely initialized */
928 set_bit(I40E_VF_STATE_INIT, &vf->vf_states);
929
930 error_alloc:
931 if (ret)
932 i40e_free_vf_res(vf);
933
934 return ret;
935 }
936
937 #define VF_DEVICE_STATUS 0xAA
938 #define VF_TRANS_PENDING_MASK 0x20
939 /**
940 * i40e_quiesce_vf_pci
941 * @vf: pointer to the VF structure
942 *
943 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
944 * if the transactions never clear.
945 **/
946 static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
947 {
948 struct i40e_pf *pf = vf->pf;
949 struct i40e_hw *hw = &pf->hw;
950 int vf_abs_id, i;
951 u32 reg;
952
953 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
954
955 wr32(hw, I40E_PF_PCI_CIAA,
956 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
957 for (i = 0; i < 100; i++) {
958 reg = rd32(hw, I40E_PF_PCI_CIAD);
959 if ((reg & VF_TRANS_PENDING_MASK) == 0)
960 return 0;
961 udelay(1);
962 }
963 return -EIO;
964 }
965
966 /**
967 * i40e_trigger_vf_reset
968 * @vf: pointer to the VF structure
969 * @flr: VFLR was issued or not
970 *
971 * Trigger hardware to start a reset for a particular VF. Expects the caller
972 * to wait the proper amount of time to allow hardware to reset the VF before
973 * it cleans up and restores VF functionality.
974 **/
975 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
976 {
977 struct i40e_pf *pf = vf->pf;
978 struct i40e_hw *hw = &pf->hw;
979 u32 reg, reg_idx, bit_idx;
980
981 /* warn the VF */
982 clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
983
984 /* Disable VF's configuration API during reset. The flag is re-enabled
985 * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.
986 * It's normally disabled in i40e_free_vf_res(), but it's safer
987 * to do it earlier to give some time to finish to any VF config
988 * functions that may still be running at this point.
989 */
990 clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
991
992 /* In the case of a VFLR, the HW has already reset the VF and we
993 * just need to clean up, so don't hit the VFRTRIG register.
994 */
995 if (!flr) {
996 /* reset VF using VPGEN_VFRTRIG reg */
997 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
998 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
999 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1000 i40e_flush(hw);
1001 }
1002 /* clear the VFLR bit in GLGEN_VFLRSTAT */
1003 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
1004 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
1005 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1006 i40e_flush(hw);
1007
1008 if (i40e_quiesce_vf_pci(vf))
1009 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
1010 vf->vf_id);
1011 }
1012
1013 /**
1014 * i40e_cleanup_reset_vf
1015 * @vf: pointer to the VF structure
1016 *
1017 * Cleanup a VF after the hardware reset is finished. Expects the caller to
1018 * have verified whether the reset is finished properly, and ensure the
1019 * minimum amount of wait time has passed.
1020 **/
1021 static void i40e_cleanup_reset_vf(struct i40e_vf *vf)
1022 {
1023 struct i40e_pf *pf = vf->pf;
1024 struct i40e_hw *hw = &pf->hw;
1025 u32 reg;
1026
1027 /* free VF resources to begin resetting the VSI state */
1028 i40e_free_vf_res(vf);
1029
1030 /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg.
1031 * By doing this we allow HW to access VF memory at any point. If we
1032 * did it any sooner, HW could access memory while it was being freed
1033 * in i40e_free_vf_res(), causing an IOMMU fault.
1034 *
1035 * On the other hand, this needs to be done ASAP, because the VF driver
1036 * is waiting for this to happen and may report a timeout. It's
1037 * harmless, but it gets logged into Guest OS kernel log, so best avoid
1038 * it.
1039 */
1040 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1041 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1042 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1043
1044 /* reallocate VF resources to finish resetting the VSI state */
1045 if (!i40e_alloc_vf_res(vf)) {
1046 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1047 i40e_enable_vf_mappings(vf);
1048 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1049 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1050 /* Do not notify the client during VF init */
1051 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE,
1052 &vf->vf_states))
1053 i40e_notify_client_of_vf_reset(pf, abs_vf_id);
1054 vf->num_vlan = 0;
1055 }
1056
1057 /* Tell the VF driver the reset is done. This needs to be done only
1058 * after VF has been fully initialized, because the VF driver may
1059 * request resources immediately after setting this flag.
1060 */
1061 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
1062 }
1063
1064 /**
1065 * i40e_reset_vf
1066 * @vf: pointer to the VF structure
1067 * @flr: VFLR was issued or not
1068 *
1069 * Returns true if the VF is reset, false otherwise.
1070 **/
1071 bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
1072 {
1073 struct i40e_pf *pf = vf->pf;
1074 struct i40e_hw *hw = &pf->hw;
1075 bool rsd = false;
1076 u32 reg;
1077 int i;
1078
1079 /* If the VFs have been disabled, this means something else is
1080 * resetting the VF, so we shouldn't continue.
1081 */
1082 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1083 return false;
1084
1085 i40e_trigger_vf_reset(vf, flr);
1086
1087 /* poll VPGEN_VFRSTAT reg to make sure
1088 * that reset is complete
1089 */
1090 for (i = 0; i < 10; i++) {
1091 /* VF reset requires driver to first reset the VF and then
1092 * poll the status register to make sure that the reset
1093 * completed successfully. Due to internal HW FIFO flushes,
1094 * we must wait 10ms before the register will be valid.
1095 */
1096 usleep_range(10000, 20000);
1097 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1098 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
1099 rsd = true;
1100 break;
1101 }
1102 }
1103
1104 if (flr)
1105 usleep_range(10000, 20000);
1106
1107 if (!rsd)
1108 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1109 vf->vf_id);
1110 usleep_range(10000, 20000);
1111
1112 /* On initial reset, we don't have any queues to disable */
1113 if (vf->lan_vsi_idx != 0)
1114 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1115
1116 i40e_cleanup_reset_vf(vf);
1117
1118 i40e_flush(hw);
1119 clear_bit(__I40E_VF_DISABLE, pf->state);
1120
1121 return true;
1122 }
1123
1124 /**
1125 * i40e_reset_all_vfs
1126 * @pf: pointer to the PF structure
1127 * @flr: VFLR was issued or not
1128 *
1129 * Reset all allocated VFs in one go. First, tell the hardware to reset each
1130 * VF, then do all the waiting in one chunk, and finally finish restoring each
1131 * VF after the wait. This is useful during PF routines which need to reset
1132 * all VFs, as otherwise it must perform these resets in a serialized fashion.
1133 *
1134 * Returns true if any VFs were reset, and false otherwise.
1135 **/
1136 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
1137 {
1138 struct i40e_hw *hw = &pf->hw;
1139 struct i40e_vf *vf;
1140 int i, v;
1141 u32 reg;
1142
1143 /* If we don't have any VFs, then there is nothing to reset */
1144 if (!pf->num_alloc_vfs)
1145 return false;
1146
1147 /* If VFs have been disabled, there is no need to reset */
1148 if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1149 return false;
1150
1151 /* Begin reset on all VFs at once */
1152 for (v = 0; v < pf->num_alloc_vfs; v++)
1153 i40e_trigger_vf_reset(&pf->vf[v], flr);
1154
1155 /* HW requires some time to make sure it can flush the FIFO for a VF
1156 * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
1157 * sequence to make sure that it has completed. We'll keep track of
1158 * the VFs using a simple iterator that increments once that VF has
1159 * finished resetting.
1160 */
1161 for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) {
1162 usleep_range(10000, 20000);
1163
1164 /* Check each VF in sequence, beginning with the VF to fail
1165 * the previous check.
1166 */
1167 while (v < pf->num_alloc_vfs) {
1168 vf = &pf->vf[v];
1169 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1170 if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))
1171 break;
1172
1173 /* If the current VF has finished resetting, move on
1174 * to the next VF in sequence.
1175 */
1176 v++;
1177 }
1178 }
1179
1180 if (flr)
1181 usleep_range(10000, 20000);
1182
1183 /* Display a warning if at least one VF didn't manage to reset in
1184 * time, but continue on with the operation.
1185 */
1186 if (v < pf->num_alloc_vfs)
1187 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1188 pf->vf[v].vf_id);
1189 usleep_range(10000, 20000);
1190
1191 /* Begin disabling all the rings associated with VFs, but do not wait
1192 * between each VF.
1193 */
1194 for (v = 0; v < pf->num_alloc_vfs; v++) {
1195 /* On initial reset, we don't have any queues to disable */
1196 if (pf->vf[v].lan_vsi_idx == 0)
1197 continue;
1198
1199 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]);
1200 }
1201
1202 /* Now that we've notified HW to disable all of the VF rings, wait
1203 * until they finish.
1204 */
1205 for (v = 0; v < pf->num_alloc_vfs; v++) {
1206 /* On initial reset, we don't have any queues to disable */
1207 if (pf->vf[v].lan_vsi_idx == 0)
1208 continue;
1209
1210 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]);
1211 }
1212
1213 /* Hw may need up to 50ms to finish disabling the RX queues. We
1214 * minimize the wait by delaying only once for all VFs.
1215 */
1216 mdelay(50);
1217
1218 /* Finish the reset on each VF */
1219 for (v = 0; v < pf->num_alloc_vfs; v++)
1220 i40e_cleanup_reset_vf(&pf->vf[v]);
1221
1222 i40e_flush(hw);
1223 clear_bit(__I40E_VF_DISABLE, pf->state);
1224
1225 return true;
1226 }
1227
1228 /**
1229 * i40e_free_vfs
1230 * @pf: pointer to the PF structure
1231 *
1232 * free VF resources
1233 **/
1234 void i40e_free_vfs(struct i40e_pf *pf)
1235 {
1236 struct i40e_hw *hw = &pf->hw;
1237 u32 reg_idx, bit_idx;
1238 int i, tmp, vf_id;
1239
1240 if (!pf->vf)
1241 return;
1242 while (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1243 usleep_range(1000, 2000);
1244
1245 i40e_notify_client_of_vf_enable(pf, 0);
1246
1247 /* Amortize wait time by stopping all VFs at the same time */
1248 for (i = 0; i < pf->num_alloc_vfs; i++) {
1249 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1250 continue;
1251
1252 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]);
1253 }
1254
1255 for (i = 0; i < pf->num_alloc_vfs; i++) {
1256 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1257 continue;
1258
1259 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]);
1260 }
1261
1262 /* Disable IOV before freeing resources. This lets any VF drivers
1263 * running in the host get themselves cleaned up before we yank
1264 * the carpet out from underneath their feet.
1265 */
1266 if (!pci_vfs_assigned(pf->pdev))
1267 pci_disable_sriov(pf->pdev);
1268 else
1269 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1270
1271 /* free up VF resources */
1272 tmp = pf->num_alloc_vfs;
1273 pf->num_alloc_vfs = 0;
1274 for (i = 0; i < tmp; i++) {
1275 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1276 i40e_free_vf_res(&pf->vf[i]);
1277 /* disable qp mappings */
1278 i40e_disable_vf_mappings(&pf->vf[i]);
1279 }
1280
1281 kfree(pf->vf);
1282 pf->vf = NULL;
1283
1284 /* This check is for when the driver is unloaded while VFs are
1285 * assigned. Setting the number of VFs to 0 through sysfs is caught
1286 * before this function ever gets called.
1287 */
1288 if (!pci_vfs_assigned(pf->pdev)) {
1289 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1290 * work correctly when SR-IOV gets re-enabled.
1291 */
1292 for (vf_id = 0; vf_id < tmp; vf_id++) {
1293 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1294 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1295 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1296 }
1297 }
1298 clear_bit(__I40E_VF_DISABLE, pf->state);
1299 }
1300
1301 #ifdef CONFIG_PCI_IOV
1302 /**
1303 * i40e_alloc_vfs
1304 * @pf: pointer to the PF structure
1305 * @num_alloc_vfs: number of VFs to allocate
1306 *
1307 * allocate VF resources
1308 **/
1309 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1310 {
1311 struct i40e_vf *vfs;
1312 int i, ret = 0;
1313
1314 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1315 i40e_irq_dynamic_disable_icr0(pf);
1316
1317 /* Check to see if we're just allocating resources for extant VFs */
1318 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1319 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1320 if (ret) {
1321 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1322 pf->num_alloc_vfs = 0;
1323 goto err_iov;
1324 }
1325 }
1326 /* allocate memory */
1327 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1328 if (!vfs) {
1329 ret = -ENOMEM;
1330 goto err_alloc;
1331 }
1332 pf->vf = vfs;
1333
1334 /* apply default profile */
1335 for (i = 0; i < num_alloc_vfs; i++) {
1336 vfs[i].pf = pf;
1337 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1338 vfs[i].vf_id = i;
1339
1340 /* assign default capabilities */
1341 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1342 vfs[i].spoofchk = true;
1343
1344 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states);
1345
1346 }
1347 pf->num_alloc_vfs = num_alloc_vfs;
1348
1349 /* VF resources get allocated during reset */
1350 i40e_reset_all_vfs(pf, false);
1351
1352 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1353
1354 err_alloc:
1355 if (ret)
1356 i40e_free_vfs(pf);
1357 err_iov:
1358 /* Re-enable interrupt 0. */
1359 i40e_irq_dynamic_enable_icr0(pf);
1360 return ret;
1361 }
1362
1363 #endif
1364 /**
1365 * i40e_pci_sriov_enable
1366 * @pdev: pointer to a pci_dev structure
1367 * @num_vfs: number of VFs to allocate
1368 *
1369 * Enable or change the number of VFs
1370 **/
1371 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1372 {
1373 #ifdef CONFIG_PCI_IOV
1374 struct i40e_pf *pf = pci_get_drvdata(pdev);
1375 int pre_existing_vfs = pci_num_vf(pdev);
1376 int err = 0;
1377
1378 if (test_bit(__I40E_TESTING, pf->state)) {
1379 dev_warn(&pdev->dev,
1380 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1381 err = -EPERM;
1382 goto err_out;
1383 }
1384
1385 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1386 i40e_free_vfs(pf);
1387 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1388 goto out;
1389
1390 if (num_vfs > pf->num_req_vfs) {
1391 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1392 num_vfs, pf->num_req_vfs);
1393 err = -EPERM;
1394 goto err_out;
1395 }
1396
1397 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1398 err = i40e_alloc_vfs(pf, num_vfs);
1399 if (err) {
1400 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1401 goto err_out;
1402 }
1403
1404 out:
1405 return num_vfs;
1406
1407 err_out:
1408 return err;
1409 #endif
1410 return 0;
1411 }
1412
1413 /**
1414 * i40e_pci_sriov_configure
1415 * @pdev: pointer to a pci_dev structure
1416 * @num_vfs: number of VFs to allocate
1417 *
1418 * Enable or change the number of VFs. Called when the user updates the number
1419 * of VFs in sysfs.
1420 **/
1421 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1422 {
1423 struct i40e_pf *pf = pci_get_drvdata(pdev);
1424
1425 if (num_vfs) {
1426 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1427 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1428 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
1429 }
1430 return i40e_pci_sriov_enable(pdev, num_vfs);
1431 }
1432
1433 if (!pci_vfs_assigned(pf->pdev)) {
1434 i40e_free_vfs(pf);
1435 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1436 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
1437 } else {
1438 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1439 return -EINVAL;
1440 }
1441 return 0;
1442 }
1443
1444 /***********************virtual channel routines******************/
1445
1446 /**
1447 * i40e_vc_send_msg_to_vf
1448 * @vf: pointer to the VF info
1449 * @v_opcode: virtual channel opcode
1450 * @v_retval: virtual channel return value
1451 * @msg: pointer to the msg buffer
1452 * @msglen: msg length
1453 *
1454 * send msg to VF
1455 **/
1456 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1457 u32 v_retval, u8 *msg, u16 msglen)
1458 {
1459 struct i40e_pf *pf;
1460 struct i40e_hw *hw;
1461 int abs_vf_id;
1462 i40e_status aq_ret;
1463
1464 /* validate the request */
1465 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1466 return -EINVAL;
1467
1468 pf = vf->pf;
1469 hw = &pf->hw;
1470 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1471
1472 /* single place to detect unsuccessful return values */
1473 if (v_retval) {
1474 vf->num_invalid_msgs++;
1475 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n",
1476 vf->vf_id, v_opcode, v_retval);
1477 if (vf->num_invalid_msgs >
1478 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1479 dev_err(&pf->pdev->dev,
1480 "Number of invalid messages exceeded for VF %d\n",
1481 vf->vf_id);
1482 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1483 set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1484 }
1485 } else {
1486 vf->num_valid_msgs++;
1487 /* reset the invalid counter, if a valid message is received. */
1488 vf->num_invalid_msgs = 0;
1489 }
1490
1491 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1492 msg, msglen, NULL);
1493 if (aq_ret) {
1494 dev_info(&pf->pdev->dev,
1495 "Unable to send the message to VF %d aq_err %d\n",
1496 vf->vf_id, pf->hw.aq.asq_last_status);
1497 return -EIO;
1498 }
1499
1500 return 0;
1501 }
1502
1503 /**
1504 * i40e_vc_send_resp_to_vf
1505 * @vf: pointer to the VF info
1506 * @opcode: operation code
1507 * @retval: return value
1508 *
1509 * send resp msg to VF
1510 **/
1511 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1512 enum virtchnl_ops opcode,
1513 i40e_status retval)
1514 {
1515 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1516 }
1517
1518 /**
1519 * i40e_vc_get_version_msg
1520 * @vf: pointer to the VF info
1521 *
1522 * called from the VF to request the API version used by the PF
1523 **/
1524 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1525 {
1526 struct virtchnl_version_info info = {
1527 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
1528 };
1529
1530 vf->vf_ver = *(struct virtchnl_version_info *)msg;
1531 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1532 if (VF_IS_V10(&vf->vf_ver))
1533 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1534 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
1535 I40E_SUCCESS, (u8 *)&info,
1536 sizeof(struct virtchnl_version_info));
1537 }
1538
1539 /**
1540 * i40e_vc_get_vf_resources_msg
1541 * @vf: pointer to the VF info
1542 * @msg: pointer to the msg buffer
1543 * @msglen: msg length
1544 *
1545 * called from the VF to request its resources
1546 **/
1547 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1548 {
1549 struct virtchnl_vf_resource *vfres = NULL;
1550 struct i40e_pf *pf = vf->pf;
1551 i40e_status aq_ret = 0;
1552 struct i40e_vsi *vsi;
1553 int num_vsis = 1;
1554 int len = 0;
1555 int ret;
1556
1557 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
1558 aq_ret = I40E_ERR_PARAM;
1559 goto err;
1560 }
1561
1562 len = (sizeof(struct virtchnl_vf_resource) +
1563 sizeof(struct virtchnl_vsi_resource) * num_vsis);
1564
1565 vfres = kzalloc(len, GFP_KERNEL);
1566 if (!vfres) {
1567 aq_ret = I40E_ERR_NO_MEMORY;
1568 len = 0;
1569 goto err;
1570 }
1571 if (VF_IS_V11(&vf->vf_ver))
1572 vf->driver_caps = *(u32 *)msg;
1573 else
1574 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
1575 VIRTCHNL_VF_OFFLOAD_RSS_REG |
1576 VIRTCHNL_VF_OFFLOAD_VLAN;
1577
1578 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
1579 vsi = pf->vsi[vf->lan_vsi_idx];
1580 if (!vsi->info.pvid)
1581 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
1582
1583 if (i40e_vf_client_capable(pf, vf->vf_id) &&
1584 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) {
1585 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP;
1586 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
1587 } else {
1588 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
1589 }
1590
1591 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
1592 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
1593 } else {
1594 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) &&
1595 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
1596 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1597 else
1598 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
1599 }
1600
1601 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
1602 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
1603 vfres->vf_cap_flags |=
1604 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
1605 }
1606
1607 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
1608 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
1609
1610 if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) &&
1611 (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
1612 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
1613
1614 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
1615 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
1616 dev_err(&pf->pdev->dev,
1617 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
1618 vf->vf_id);
1619 aq_ret = I40E_ERR_PARAM;
1620 goto err;
1621 }
1622 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1623 }
1624
1625 if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) {
1626 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1627 vfres->vf_cap_flags |=
1628 VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
1629 }
1630
1631 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
1632 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
1633
1634 vfres->num_vsis = num_vsis;
1635 vfres->num_queue_pairs = vf->num_queue_pairs;
1636 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1637 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
1638 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
1639
1640 if (vf->lan_vsi_idx) {
1641 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
1642 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
1643 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
1644 /* VFs only use TC 0 */
1645 vfres->vsi_res[0].qset_handle
1646 = le16_to_cpu(vsi->info.qs_handle[0]);
1647 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
1648 vf->default_lan_addr.addr);
1649 }
1650 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1651
1652 err:
1653 /* send the response back to the VF */
1654 ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES,
1655 aq_ret, (u8 *)vfres, len);
1656
1657 kfree(vfres);
1658 return ret;
1659 }
1660
1661 /**
1662 * i40e_vc_reset_vf_msg
1663 * @vf: pointer to the VF info
1664 * @msg: pointer to the msg buffer
1665 * @msglen: msg length
1666 *
1667 * called from the VF to reset itself,
1668 * unlike other virtchnl messages, PF driver
1669 * doesn't send the response back to the VF
1670 **/
1671 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1672 {
1673 if (test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
1674 i40e_reset_vf(vf, false);
1675 }
1676
1677 /**
1678 * i40e_getnum_vf_vsi_vlan_filters
1679 * @vsi: pointer to the vsi
1680 *
1681 * called to get the number of VLANs offloaded on this VF
1682 **/
1683 static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1684 {
1685 struct i40e_mac_filter *f;
1686 int num_vlans = 0, bkt;
1687
1688 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1689 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
1690 num_vlans++;
1691 }
1692
1693 return num_vlans;
1694 }
1695
1696 /**
1697 * i40e_vc_config_promiscuous_mode_msg
1698 * @vf: pointer to the VF info
1699 * @msg: pointer to the msg buffer
1700 * @msglen: msg length
1701 *
1702 * called from the VF to configure the promiscuous mode of
1703 * VF vsis
1704 **/
1705 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1706 u8 *msg, u16 msglen)
1707 {
1708 struct virtchnl_promisc_info *info =
1709 (struct virtchnl_promisc_info *)msg;
1710 struct i40e_pf *pf = vf->pf;
1711 struct i40e_hw *hw = &pf->hw;
1712 struct i40e_mac_filter *f;
1713 i40e_status aq_ret = 0;
1714 bool allmulti = false;
1715 struct i40e_vsi *vsi;
1716 bool alluni = false;
1717 int aq_err = 0;
1718 int bkt;
1719
1720 vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1721 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
1722 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1723 !vsi) {
1724 aq_ret = I40E_ERR_PARAM;
1725 goto error_param;
1726 }
1727 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
1728 dev_err(&pf->pdev->dev,
1729 "Unprivileged VF %d is attempting to configure promiscuous mode\n",
1730 vf->vf_id);
1731 /* Lie to the VF on purpose. */
1732 aq_ret = 0;
1733 goto error_param;
1734 }
1735 /* Multicast promiscuous handling*/
1736 if (info->flags & FLAG_VF_MULTICAST_PROMISC)
1737 allmulti = true;
1738
1739 if (vf->port_vlan_id) {
1740 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, vsi->seid,
1741 allmulti,
1742 vf->port_vlan_id,
1743 NULL);
1744 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1745 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1746 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1747 continue;
1748 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw,
1749 vsi->seid,
1750 allmulti,
1751 f->vlan,
1752 NULL);
1753 aq_err = pf->hw.aq.asq_last_status;
1754 if (aq_ret) {
1755 dev_err(&pf->pdev->dev,
1756 "Could not add VLAN %d to multicast promiscuous domain err %s aq_err %s\n",
1757 f->vlan,
1758 i40e_stat_str(&pf->hw, aq_ret),
1759 i40e_aq_str(&pf->hw, aq_err));
1760 break;
1761 }
1762 }
1763 } else {
1764 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
1765 allmulti, NULL);
1766 aq_err = pf->hw.aq.asq_last_status;
1767 if (aq_ret) {
1768 dev_err(&pf->pdev->dev,
1769 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
1770 vf->vf_id,
1771 i40e_stat_str(&pf->hw, aq_ret),
1772 i40e_aq_str(&pf->hw, aq_err));
1773 goto error_param;
1774 }
1775 }
1776
1777 if (!aq_ret) {
1778 dev_info(&pf->pdev->dev,
1779 "VF %d successfully set multicast promiscuous mode\n",
1780 vf->vf_id);
1781 if (allmulti)
1782 set_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
1783 else
1784 clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
1785 }
1786
1787 if (info->flags & FLAG_VF_UNICAST_PROMISC)
1788 alluni = true;
1789 if (vf->port_vlan_id) {
1790 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, vsi->seid,
1791 alluni,
1792 vf->port_vlan_id,
1793 NULL);
1794 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1795 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1796 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1797 continue;
1798 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw,
1799 vsi->seid,
1800 alluni,
1801 f->vlan,
1802 NULL);
1803 aq_err = pf->hw.aq.asq_last_status;
1804 if (aq_ret)
1805 dev_err(&pf->pdev->dev,
1806 "Could not add VLAN %d to Unicast promiscuous domain err %s aq_err %s\n",
1807 f->vlan,
1808 i40e_stat_str(&pf->hw, aq_ret),
1809 i40e_aq_str(&pf->hw, aq_err));
1810 }
1811 } else {
1812 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, vsi->seid,
1813 alluni, NULL,
1814 true);
1815 aq_err = pf->hw.aq.asq_last_status;
1816 if (aq_ret) {
1817 dev_err(&pf->pdev->dev,
1818 "VF %d failed to set unicast promiscuous mode %8.8x err %s aq_err %s\n",
1819 vf->vf_id, info->flags,
1820 i40e_stat_str(&pf->hw, aq_ret),
1821 i40e_aq_str(&pf->hw, aq_err));
1822 goto error_param;
1823 }
1824 }
1825
1826 if (!aq_ret) {
1827 dev_info(&pf->pdev->dev,
1828 "VF %d successfully set unicast promiscuous mode\n",
1829 vf->vf_id);
1830 if (alluni)
1831 set_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
1832 else
1833 clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
1834 }
1835
1836 error_param:
1837 /* send the response to the VF */
1838 return i40e_vc_send_resp_to_vf(vf,
1839 VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1840 aq_ret);
1841 }
1842
1843 /**
1844 * i40e_vc_config_queues_msg
1845 * @vf: pointer to the VF info
1846 * @msg: pointer to the msg buffer
1847 * @msglen: msg length
1848 *
1849 * called from the VF to configure the rx/tx
1850 * queues
1851 **/
1852 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1853 {
1854 struct virtchnl_vsi_queue_config_info *qci =
1855 (struct virtchnl_vsi_queue_config_info *)msg;
1856 struct virtchnl_queue_pair_info *qpi;
1857 struct i40e_pf *pf = vf->pf;
1858 u16 vsi_id, vsi_queue_id;
1859 i40e_status aq_ret = 0;
1860 int i;
1861
1862 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
1863 aq_ret = I40E_ERR_PARAM;
1864 goto error_param;
1865 }
1866
1867 vsi_id = qci->vsi_id;
1868 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1869 aq_ret = I40E_ERR_PARAM;
1870 goto error_param;
1871 }
1872 for (i = 0; i < qci->num_queue_pairs; i++) {
1873 qpi = &qci->qpair[i];
1874 vsi_queue_id = qpi->txq.queue_id;
1875 if ((qpi->txq.vsi_id != vsi_id) ||
1876 (qpi->rxq.vsi_id != vsi_id) ||
1877 (qpi->rxq.queue_id != vsi_queue_id) ||
1878 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1879 aq_ret = I40E_ERR_PARAM;
1880 goto error_param;
1881 }
1882
1883 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1884 &qpi->rxq) ||
1885 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1886 &qpi->txq)) {
1887 aq_ret = I40E_ERR_PARAM;
1888 goto error_param;
1889 }
1890 }
1891 /* set vsi num_queue_pairs in use to num configured by VF */
1892 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1893
1894 error_param:
1895 /* send the response to the VF */
1896 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1897 aq_ret);
1898 }
1899
1900 /**
1901 * i40e_vc_config_irq_map_msg
1902 * @vf: pointer to the VF info
1903 * @msg: pointer to the msg buffer
1904 * @msglen: msg length
1905 *
1906 * called from the VF to configure the irq to
1907 * queue map
1908 **/
1909 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1910 {
1911 struct virtchnl_irq_map_info *irqmap_info =
1912 (struct virtchnl_irq_map_info *)msg;
1913 struct virtchnl_vector_map *map;
1914 u16 vsi_id, vsi_queue_id, vector_id;
1915 i40e_status aq_ret = 0;
1916 unsigned long tempmap;
1917 int i;
1918
1919 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
1920 aq_ret = I40E_ERR_PARAM;
1921 goto error_param;
1922 }
1923
1924 for (i = 0; i < irqmap_info->num_vectors; i++) {
1925 map = &irqmap_info->vecmap[i];
1926
1927 vector_id = map->vector_id;
1928 vsi_id = map->vsi_id;
1929 /* validate msg params */
1930 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1931 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1932 aq_ret = I40E_ERR_PARAM;
1933 goto error_param;
1934 }
1935
1936 /* lookout for the invalid queue index */
1937 tempmap = map->rxq_map;
1938 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1939 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1940 vsi_queue_id)) {
1941 aq_ret = I40E_ERR_PARAM;
1942 goto error_param;
1943 }
1944 }
1945
1946 tempmap = map->txq_map;
1947 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1948 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1949 vsi_queue_id)) {
1950 aq_ret = I40E_ERR_PARAM;
1951 goto error_param;
1952 }
1953 }
1954
1955 i40e_config_irq_link_list(vf, vsi_id, map);
1956 }
1957 error_param:
1958 /* send the response to the VF */
1959 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP,
1960 aq_ret);
1961 }
1962
1963 /**
1964 * i40e_vc_enable_queues_msg
1965 * @vf: pointer to the VF info
1966 * @msg: pointer to the msg buffer
1967 * @msglen: msg length
1968 *
1969 * called from the VF to enable all or specific queue(s)
1970 **/
1971 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1972 {
1973 struct virtchnl_queue_select *vqs =
1974 (struct virtchnl_queue_select *)msg;
1975 struct i40e_pf *pf = vf->pf;
1976 u16 vsi_id = vqs->vsi_id;
1977 i40e_status aq_ret = 0;
1978
1979 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
1980 aq_ret = I40E_ERR_PARAM;
1981 goto error_param;
1982 }
1983
1984 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1985 aq_ret = I40E_ERR_PARAM;
1986 goto error_param;
1987 }
1988
1989 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1990 aq_ret = I40E_ERR_PARAM;
1991 goto error_param;
1992 }
1993
1994 if (i40e_vsi_start_rings(pf->vsi[vf->lan_vsi_idx]))
1995 aq_ret = I40E_ERR_TIMEOUT;
1996 error_param:
1997 /* send the response to the VF */
1998 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES,
1999 aq_ret);
2000 }
2001
2002 /**
2003 * i40e_vc_disable_queues_msg
2004 * @vf: pointer to the VF info
2005 * @msg: pointer to the msg buffer
2006 * @msglen: msg length
2007 *
2008 * called from the VF to disable all or specific
2009 * queue(s)
2010 **/
2011 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2012 {
2013 struct virtchnl_queue_select *vqs =
2014 (struct virtchnl_queue_select *)msg;
2015 struct i40e_pf *pf = vf->pf;
2016 i40e_status aq_ret = 0;
2017
2018 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2019 aq_ret = I40E_ERR_PARAM;
2020 goto error_param;
2021 }
2022
2023 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2024 aq_ret = I40E_ERR_PARAM;
2025 goto error_param;
2026 }
2027
2028 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
2029 aq_ret = I40E_ERR_PARAM;
2030 goto error_param;
2031 }
2032
2033 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
2034
2035 error_param:
2036 /* send the response to the VF */
2037 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES,
2038 aq_ret);
2039 }
2040
2041 /**
2042 * i40e_vc_request_queues_msg
2043 * @vf: pointer to the VF info
2044 * @msg: pointer to the msg buffer
2045 * @msglen: msg length
2046 *
2047 * VFs get a default number of queues but can use this message to request a
2048 * different number. If the request is successful, PF will reset the VF and
2049 * return 0. If unsuccessful, PF will send message informing VF of number of
2050 * available queues and return result of sending VF a message.
2051 **/
2052 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg, int msglen)
2053 {
2054 struct virtchnl_vf_res_request *vfres =
2055 (struct virtchnl_vf_res_request *)msg;
2056 int req_pairs = vfres->num_queue_pairs;
2057 int cur_pairs = vf->num_queue_pairs;
2058 struct i40e_pf *pf = vf->pf;
2059
2060 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
2061 return -EINVAL;
2062
2063 if (req_pairs <= 0) {
2064 dev_err(&pf->pdev->dev,
2065 "VF %d tried to request %d queues. Ignoring.\n",
2066 vf->vf_id, req_pairs);
2067 } else if (req_pairs > I40E_MAX_VF_QUEUES) {
2068 dev_err(&pf->pdev->dev,
2069 "VF %d tried to request more than %d queues.\n",
2070 vf->vf_id,
2071 I40E_MAX_VF_QUEUES);
2072 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES;
2073 } else if (req_pairs - cur_pairs > pf->queues_left) {
2074 dev_warn(&pf->pdev->dev,
2075 "VF %d requested %d more queues, but only %d left.\n",
2076 vf->vf_id,
2077 req_pairs - cur_pairs,
2078 pf->queues_left);
2079 vfres->num_queue_pairs = pf->queues_left + cur_pairs;
2080 } else {
2081 /* successful request */
2082 vf->num_req_queues = req_pairs;
2083 i40e_vc_notify_vf_reset(vf);
2084 i40e_reset_vf(vf, false);
2085 return 0;
2086 }
2087
2088 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0,
2089 (u8 *)vfres, sizeof(*vfres));
2090 }
2091
2092 /**
2093 * i40e_vc_get_stats_msg
2094 * @vf: pointer to the VF info
2095 * @msg: pointer to the msg buffer
2096 * @msglen: msg length
2097 *
2098 * called from the VF to get vsi stats
2099 **/
2100 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2101 {
2102 struct virtchnl_queue_select *vqs =
2103 (struct virtchnl_queue_select *)msg;
2104 struct i40e_pf *pf = vf->pf;
2105 struct i40e_eth_stats stats;
2106 i40e_status aq_ret = 0;
2107 struct i40e_vsi *vsi;
2108
2109 memset(&stats, 0, sizeof(struct i40e_eth_stats));
2110
2111 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2112 aq_ret = I40E_ERR_PARAM;
2113 goto error_param;
2114 }
2115
2116 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2117 aq_ret = I40E_ERR_PARAM;
2118 goto error_param;
2119 }
2120
2121 vsi = pf->vsi[vf->lan_vsi_idx];
2122 if (!vsi) {
2123 aq_ret = I40E_ERR_PARAM;
2124 goto error_param;
2125 }
2126 i40e_update_eth_stats(vsi);
2127 stats = vsi->eth_stats;
2128
2129 error_param:
2130 /* send the response back to the VF */
2131 return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret,
2132 (u8 *)&stats, sizeof(stats));
2133 }
2134
2135 /* If the VF is not trusted restrict the number of MAC/VLAN it can program */
2136 #define I40E_VC_MAX_MAC_ADDR_PER_VF 12
2137 #define I40E_VC_MAX_VLAN_PER_VF 8
2138
2139 /**
2140 * i40e_check_vf_permission
2141 * @vf: pointer to the VF info
2142 * @macaddr: pointer to the MAC Address being checked
2143 *
2144 * Check if the VF has permission to add or delete unicast MAC address
2145 * filters and return error code -EPERM if not. Then check if the
2146 * address filter requested is broadcast or zero and if so return
2147 * an invalid MAC address error code.
2148 **/
2149 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
2150 {
2151 struct i40e_pf *pf = vf->pf;
2152 int ret = 0;
2153
2154 if (is_broadcast_ether_addr(macaddr) ||
2155 is_zero_ether_addr(macaddr)) {
2156 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
2157 ret = I40E_ERR_INVALID_MAC_ADDR;
2158 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
2159 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
2160 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
2161 /* If the host VMM administrator has set the VF MAC address
2162 * administratively via the ndo_set_vf_mac command then deny
2163 * permission to the VF to add or delete unicast MAC addresses.
2164 * Unless the VF is privileged and then it can do whatever.
2165 * The VF may request to set the MAC address filter already
2166 * assigned to it so do not return an error in that case.
2167 */
2168 dev_err(&pf->pdev->dev,
2169 "VF attempting to override administratively set MAC address, reload the VF driver to resume normal operation\n");
2170 ret = -EPERM;
2171 } else if ((vf->num_mac >= I40E_VC_MAX_MAC_ADDR_PER_VF) &&
2172 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2173 dev_err(&pf->pdev->dev,
2174 "VF is not trusted, switch the VF to trusted to add more functionality\n");
2175 ret = -EPERM;
2176 }
2177 return ret;
2178 }
2179
2180 /**
2181 * i40e_vc_add_mac_addr_msg
2182 * @vf: pointer to the VF info
2183 * @msg: pointer to the msg buffer
2184 * @msglen: msg length
2185 *
2186 * add guest mac address filter
2187 **/
2188 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2189 {
2190 struct virtchnl_ether_addr_list *al =
2191 (struct virtchnl_ether_addr_list *)msg;
2192 struct i40e_pf *pf = vf->pf;
2193 struct i40e_vsi *vsi = NULL;
2194 u16 vsi_id = al->vsi_id;
2195 i40e_status ret = 0;
2196 int i;
2197
2198 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2199 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2200 ret = I40E_ERR_PARAM;
2201 goto error_param;
2202 }
2203
2204 for (i = 0; i < al->num_elements; i++) {
2205 ret = i40e_check_vf_permission(vf, al->list[i].addr);
2206 if (ret)
2207 goto error_param;
2208 }
2209 vsi = pf->vsi[vf->lan_vsi_idx];
2210
2211 /* Lock once, because all function inside for loop accesses VSI's
2212 * MAC filter list which needs to be protected using same lock.
2213 */
2214 spin_lock_bh(&vsi->mac_filter_hash_lock);
2215
2216 /* add new addresses to the list */
2217 for (i = 0; i < al->num_elements; i++) {
2218 struct i40e_mac_filter *f;
2219
2220 f = i40e_find_mac(vsi, al->list[i].addr);
2221 if (!f) {
2222 f = i40e_add_mac_filter(vsi, al->list[i].addr);
2223
2224 if (!f) {
2225 dev_err(&pf->pdev->dev,
2226 "Unable to add MAC filter %pM for VF %d\n",
2227 al->list[i].addr, vf->vf_id);
2228 ret = I40E_ERR_PARAM;
2229 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2230 goto error_param;
2231 } else {
2232 vf->num_mac++;
2233 }
2234 }
2235 }
2236 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2237
2238 /* program the updated filter list */
2239 ret = i40e_sync_vsi_filters(vsi);
2240 if (ret)
2241 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2242 vf->vf_id, ret);
2243
2244 error_param:
2245 /* send the response to the VF */
2246 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
2247 ret);
2248 }
2249
2250 /**
2251 * i40e_vc_del_mac_addr_msg
2252 * @vf: pointer to the VF info
2253 * @msg: pointer to the msg buffer
2254 * @msglen: msg length
2255 *
2256 * remove guest mac address filter
2257 **/
2258 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2259 {
2260 struct virtchnl_ether_addr_list *al =
2261 (struct virtchnl_ether_addr_list *)msg;
2262 struct i40e_pf *pf = vf->pf;
2263 struct i40e_vsi *vsi = NULL;
2264 u16 vsi_id = al->vsi_id;
2265 i40e_status ret = 0;
2266 int i;
2267
2268 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2269 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2270 ret = I40E_ERR_PARAM;
2271 goto error_param;
2272 }
2273
2274 for (i = 0; i < al->num_elements; i++) {
2275 if (is_broadcast_ether_addr(al->list[i].addr) ||
2276 is_zero_ether_addr(al->list[i].addr)) {
2277 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
2278 al->list[i].addr, vf->vf_id);
2279 ret = I40E_ERR_INVALID_MAC_ADDR;
2280 goto error_param;
2281 }
2282 }
2283 vsi = pf->vsi[vf->lan_vsi_idx];
2284
2285 spin_lock_bh(&vsi->mac_filter_hash_lock);
2286 /* delete addresses from the list */
2287 for (i = 0; i < al->num_elements; i++)
2288 if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
2289 ret = I40E_ERR_INVALID_MAC_ADDR;
2290 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2291 goto error_param;
2292 } else {
2293 vf->num_mac--;
2294 }
2295
2296 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2297
2298 /* program the updated filter list */
2299 ret = i40e_sync_vsi_filters(vsi);
2300 if (ret)
2301 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2302 vf->vf_id, ret);
2303
2304 error_param:
2305 /* send the response to the VF */
2306 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR,
2307 ret);
2308 }
2309
2310 /**
2311 * i40e_vc_add_vlan_msg
2312 * @vf: pointer to the VF info
2313 * @msg: pointer to the msg buffer
2314 * @msglen: msg length
2315 *
2316 * program guest vlan id
2317 **/
2318 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2319 {
2320 struct virtchnl_vlan_filter_list *vfl =
2321 (struct virtchnl_vlan_filter_list *)msg;
2322 struct i40e_pf *pf = vf->pf;
2323 struct i40e_vsi *vsi = NULL;
2324 u16 vsi_id = vfl->vsi_id;
2325 i40e_status aq_ret = 0;
2326 int i;
2327
2328 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
2329 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2330 dev_err(&pf->pdev->dev,
2331 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
2332 goto error_param;
2333 }
2334 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2335 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2336 aq_ret = I40E_ERR_PARAM;
2337 goto error_param;
2338 }
2339
2340 for (i = 0; i < vfl->num_elements; i++) {
2341 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2342 aq_ret = I40E_ERR_PARAM;
2343 dev_err(&pf->pdev->dev,
2344 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
2345 goto error_param;
2346 }
2347 }
2348 vsi = pf->vsi[vf->lan_vsi_idx];
2349 if (vsi->info.pvid) {
2350 aq_ret = I40E_ERR_PARAM;
2351 goto error_param;
2352 }
2353
2354 i40e_vlan_stripping_enable(vsi);
2355 for (i = 0; i < vfl->num_elements; i++) {
2356 /* add new VLAN filter */
2357 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
2358 if (!ret)
2359 vf->num_vlan++;
2360
2361 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
2362 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2363 true,
2364 vfl->vlan_id[i],
2365 NULL);
2366 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
2367 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2368 true,
2369 vfl->vlan_id[i],
2370 NULL);
2371
2372 if (ret)
2373 dev_err(&pf->pdev->dev,
2374 "Unable to add VLAN filter %d for VF %d, error %d\n",
2375 vfl->vlan_id[i], vf->vf_id, ret);
2376 }
2377
2378 error_param:
2379 /* send the response to the VF */
2380 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret);
2381 }
2382
2383 /**
2384 * i40e_vc_remove_vlan_msg
2385 * @vf: pointer to the VF info
2386 * @msg: pointer to the msg buffer
2387 * @msglen: msg length
2388 *
2389 * remove programmed guest vlan id
2390 **/
2391 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2392 {
2393 struct virtchnl_vlan_filter_list *vfl =
2394 (struct virtchnl_vlan_filter_list *)msg;
2395 struct i40e_pf *pf = vf->pf;
2396 struct i40e_vsi *vsi = NULL;
2397 u16 vsi_id = vfl->vsi_id;
2398 i40e_status aq_ret = 0;
2399 int i;
2400
2401 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2402 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2403 aq_ret = I40E_ERR_PARAM;
2404 goto error_param;
2405 }
2406
2407 for (i = 0; i < vfl->num_elements; i++) {
2408 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2409 aq_ret = I40E_ERR_PARAM;
2410 goto error_param;
2411 }
2412 }
2413
2414 vsi = pf->vsi[vf->lan_vsi_idx];
2415 if (vsi->info.pvid) {
2416 aq_ret = I40E_ERR_PARAM;
2417 goto error_param;
2418 }
2419
2420 for (i = 0; i < vfl->num_elements; i++) {
2421 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
2422 vf->num_vlan--;
2423
2424 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
2425 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2426 false,
2427 vfl->vlan_id[i],
2428 NULL);
2429 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
2430 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2431 false,
2432 vfl->vlan_id[i],
2433 NULL);
2434 }
2435
2436 error_param:
2437 /* send the response to the VF */
2438 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret);
2439 }
2440
2441 /**
2442 * i40e_vc_iwarp_msg
2443 * @vf: pointer to the VF info
2444 * @msg: pointer to the msg buffer
2445 * @msglen: msg length
2446 *
2447 * called from the VF for the iwarp msgs
2448 **/
2449 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2450 {
2451 struct i40e_pf *pf = vf->pf;
2452 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
2453 i40e_status aq_ret = 0;
2454
2455 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2456 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
2457 aq_ret = I40E_ERR_PARAM;
2458 goto error_param;
2459 }
2460
2461 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
2462 msg, msglen);
2463
2464 error_param:
2465 /* send the response to the VF */
2466 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP,
2467 aq_ret);
2468 }
2469
2470 /**
2471 * i40e_vc_iwarp_qvmap_msg
2472 * @vf: pointer to the VF info
2473 * @msg: pointer to the msg buffer
2474 * @msglen: msg length
2475 * @config: config qvmap or release it
2476 *
2477 * called from the VF for the iwarp msgs
2478 **/
2479 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, u16 msglen,
2480 bool config)
2481 {
2482 struct virtchnl_iwarp_qvlist_info *qvlist_info =
2483 (struct virtchnl_iwarp_qvlist_info *)msg;
2484 i40e_status aq_ret = 0;
2485
2486 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2487 !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
2488 aq_ret = I40E_ERR_PARAM;
2489 goto error_param;
2490 }
2491
2492 if (config) {
2493 if (i40e_config_iwarp_qvlist(vf, qvlist_info))
2494 aq_ret = I40E_ERR_PARAM;
2495 } else {
2496 i40e_release_iwarp_qvlist(vf);
2497 }
2498
2499 error_param:
2500 /* send the response to the VF */
2501 return i40e_vc_send_resp_to_vf(vf,
2502 config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP :
2503 VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP,
2504 aq_ret);
2505 }
2506
2507 /**
2508 * i40e_vc_config_rss_key
2509 * @vf: pointer to the VF info
2510 * @msg: pointer to the msg buffer
2511 * @msglen: msg length
2512 *
2513 * Configure the VF's RSS key
2514 **/
2515 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg, u16 msglen)
2516 {
2517 struct virtchnl_rss_key *vrk =
2518 (struct virtchnl_rss_key *)msg;
2519 struct i40e_pf *pf = vf->pf;
2520 struct i40e_vsi *vsi = NULL;
2521 u16 vsi_id = vrk->vsi_id;
2522 i40e_status aq_ret = 0;
2523
2524 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2525 !i40e_vc_isvalid_vsi_id(vf, vsi_id) ||
2526 (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) {
2527 aq_ret = I40E_ERR_PARAM;
2528 goto err;
2529 }
2530
2531 vsi = pf->vsi[vf->lan_vsi_idx];
2532 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
2533 err:
2534 /* send the response to the VF */
2535 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY,
2536 aq_ret);
2537 }
2538
2539 /**
2540 * i40e_vc_config_rss_lut
2541 * @vf: pointer to the VF info
2542 * @msg: pointer to the msg buffer
2543 * @msglen: msg length
2544 *
2545 * Configure the VF's RSS LUT
2546 **/
2547 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg, u16 msglen)
2548 {
2549 struct virtchnl_rss_lut *vrl =
2550 (struct virtchnl_rss_lut *)msg;
2551 struct i40e_pf *pf = vf->pf;
2552 struct i40e_vsi *vsi = NULL;
2553 u16 vsi_id = vrl->vsi_id;
2554 i40e_status aq_ret = 0;
2555
2556 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2557 !i40e_vc_isvalid_vsi_id(vf, vsi_id) ||
2558 (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) {
2559 aq_ret = I40E_ERR_PARAM;
2560 goto err;
2561 }
2562
2563 vsi = pf->vsi[vf->lan_vsi_idx];
2564 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
2565 /* send the response to the VF */
2566 err:
2567 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT,
2568 aq_ret);
2569 }
2570
2571 /**
2572 * i40e_vc_get_rss_hena
2573 * @vf: pointer to the VF info
2574 * @msg: pointer to the msg buffer
2575 * @msglen: msg length
2576 *
2577 * Return the RSS HENA bits allowed by the hardware
2578 **/
2579 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen)
2580 {
2581 struct virtchnl_rss_hena *vrh = NULL;
2582 struct i40e_pf *pf = vf->pf;
2583 i40e_status aq_ret = 0;
2584 int len = 0;
2585
2586 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2587 aq_ret = I40E_ERR_PARAM;
2588 goto err;
2589 }
2590 len = sizeof(struct virtchnl_rss_hena);
2591
2592 vrh = kzalloc(len, GFP_KERNEL);
2593 if (!vrh) {
2594 aq_ret = I40E_ERR_NO_MEMORY;
2595 len = 0;
2596 goto err;
2597 }
2598 vrh->hena = i40e_pf_get_default_rss_hena(pf);
2599 err:
2600 /* send the response back to the VF */
2601 aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS,
2602 aq_ret, (u8 *)vrh, len);
2603 kfree(vrh);
2604 return aq_ret;
2605 }
2606
2607 /**
2608 * i40e_vc_set_rss_hena
2609 * @vf: pointer to the VF info
2610 * @msg: pointer to the msg buffer
2611 * @msglen: msg length
2612 *
2613 * Set the RSS HENA bits for the VF
2614 **/
2615 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen)
2616 {
2617 struct virtchnl_rss_hena *vrh =
2618 (struct virtchnl_rss_hena *)msg;
2619 struct i40e_pf *pf = vf->pf;
2620 struct i40e_hw *hw = &pf->hw;
2621 i40e_status aq_ret = 0;
2622
2623 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2624 aq_ret = I40E_ERR_PARAM;
2625 goto err;
2626 }
2627 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);
2628 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
2629 (u32)(vrh->hena >> 32));
2630
2631 /* send the response to the VF */
2632 err:
2633 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret);
2634 }
2635
2636 /**
2637 * i40e_vc_enable_vlan_stripping
2638 * @vf: pointer to the VF info
2639 * @msg: pointer to the msg buffer
2640 * @msglen: msg length
2641 *
2642 * Enable vlan header stripping for the VF
2643 **/
2644 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg,
2645 u16 msglen)
2646 {
2647 struct i40e_vsi *vsi = vf->pf->vsi[vf->lan_vsi_idx];
2648 i40e_status aq_ret = 0;
2649
2650 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2651 aq_ret = I40E_ERR_PARAM;
2652 goto err;
2653 }
2654
2655 i40e_vlan_stripping_enable(vsi);
2656
2657 /* send the response to the VF */
2658 err:
2659 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
2660 aq_ret);
2661 }
2662
2663 /**
2664 * i40e_vc_disable_vlan_stripping
2665 * @vf: pointer to the VF info
2666 * @msg: pointer to the msg buffer
2667 * @msglen: msg length
2668 *
2669 * Disable vlan header stripping for the VF
2670 **/
2671 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg,
2672 u16 msglen)
2673 {
2674 struct i40e_vsi *vsi = vf->pf->vsi[vf->lan_vsi_idx];
2675 i40e_status aq_ret = 0;
2676
2677 if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2678 aq_ret = I40E_ERR_PARAM;
2679 goto err;
2680 }
2681
2682 i40e_vlan_stripping_disable(vsi);
2683
2684 /* send the response to the VF */
2685 err:
2686 return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
2687 aq_ret);
2688 }
2689
2690 /**
2691 * i40e_vc_process_vf_msg
2692 * @pf: pointer to the PF structure
2693 * @vf_id: source VF id
2694 * @msg: pointer to the msg buffer
2695 * @msglen: msg length
2696 * @msghndl: msg handle
2697 *
2698 * called from the common aeq/arq handler to
2699 * process request from VF
2700 **/
2701 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
2702 u32 v_retval, u8 *msg, u16 msglen)
2703 {
2704 struct i40e_hw *hw = &pf->hw;
2705 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
2706 struct i40e_vf *vf;
2707 int ret;
2708
2709 pf->vf_aq_requests++;
2710 if (local_vf_id >= pf->num_alloc_vfs)
2711 return -EINVAL;
2712 vf = &(pf->vf[local_vf_id]);
2713
2714 /* Check if VF is disabled. */
2715 if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states))
2716 return I40E_ERR_PARAM;
2717
2718 /* perform basic checks on the msg */
2719 ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
2720
2721 /* perform additional checks specific to this driver */
2722 if (v_opcode == VIRTCHNL_OP_CONFIG_RSS_KEY) {
2723 struct virtchnl_rss_key *vrk = (struct virtchnl_rss_key *)msg;
2724
2725 if (vrk->key_len != I40E_HKEY_ARRAY_SIZE)
2726 ret = -EINVAL;
2727 } else if (v_opcode == VIRTCHNL_OP_CONFIG_RSS_LUT) {
2728 struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg;
2729
2730 if (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)
2731 ret = -EINVAL;
2732 }
2733
2734 if (ret) {
2735 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
2736 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
2737 local_vf_id, v_opcode, msglen);
2738 switch (ret) {
2739 case VIRTCHNL_ERR_PARAM:
2740 return -EPERM;
2741 default:
2742 return -EINVAL;
2743 }
2744 }
2745
2746 switch (v_opcode) {
2747 case VIRTCHNL_OP_VERSION:
2748 ret = i40e_vc_get_version_msg(vf, msg);
2749 break;
2750 case VIRTCHNL_OP_GET_VF_RESOURCES:
2751 ret = i40e_vc_get_vf_resources_msg(vf, msg);
2752 i40e_vc_notify_vf_link_state(vf);
2753 break;
2754 case VIRTCHNL_OP_RESET_VF:
2755 i40e_vc_reset_vf_msg(vf);
2756 ret = 0;
2757 break;
2758 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2759 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
2760 break;
2761 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
2762 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
2763 break;
2764 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
2765 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
2766 break;
2767 case VIRTCHNL_OP_ENABLE_QUEUES:
2768 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
2769 i40e_vc_notify_vf_link_state(vf);
2770 break;
2771 case VIRTCHNL_OP_DISABLE_QUEUES:
2772 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
2773 break;
2774 case VIRTCHNL_OP_ADD_ETH_ADDR:
2775 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
2776 break;
2777 case VIRTCHNL_OP_DEL_ETH_ADDR:
2778 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
2779 break;
2780 case VIRTCHNL_OP_ADD_VLAN:
2781 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
2782 break;
2783 case VIRTCHNL_OP_DEL_VLAN:
2784 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
2785 break;
2786 case VIRTCHNL_OP_GET_STATS:
2787 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
2788 break;
2789 case VIRTCHNL_OP_IWARP:
2790 ret = i40e_vc_iwarp_msg(vf, msg, msglen);
2791 break;
2792 case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
2793 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, true);
2794 break;
2795 case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
2796 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, false);
2797 break;
2798 case VIRTCHNL_OP_CONFIG_RSS_KEY:
2799 ret = i40e_vc_config_rss_key(vf, msg, msglen);
2800 break;
2801 case VIRTCHNL_OP_CONFIG_RSS_LUT:
2802 ret = i40e_vc_config_rss_lut(vf, msg, msglen);
2803 break;
2804 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
2805 ret = i40e_vc_get_rss_hena(vf, msg, msglen);
2806 break;
2807 case VIRTCHNL_OP_SET_RSS_HENA:
2808 ret = i40e_vc_set_rss_hena(vf, msg, msglen);
2809 break;
2810 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
2811 ret = i40e_vc_enable_vlan_stripping(vf, msg, msglen);
2812 break;
2813 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
2814 ret = i40e_vc_disable_vlan_stripping(vf, msg, msglen);
2815 break;
2816 case VIRTCHNL_OP_REQUEST_QUEUES:
2817 ret = i40e_vc_request_queues_msg(vf, msg, msglen);
2818 break;
2819
2820 case VIRTCHNL_OP_UNKNOWN:
2821 default:
2822 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
2823 v_opcode, local_vf_id);
2824 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
2825 I40E_ERR_NOT_IMPLEMENTED);
2826 break;
2827 }
2828
2829 return ret;
2830 }
2831
2832 /**
2833 * i40e_vc_process_vflr_event
2834 * @pf: pointer to the PF structure
2835 *
2836 * called from the vlfr irq handler to
2837 * free up VF resources and state variables
2838 **/
2839 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
2840 {
2841 struct i40e_hw *hw = &pf->hw;
2842 u32 reg, reg_idx, bit_idx;
2843 struct i40e_vf *vf;
2844 int vf_id;
2845
2846 if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state))
2847 return 0;
2848
2849 /* Re-enable the VFLR interrupt cause here, before looking for which
2850 * VF got reset. Otherwise, if another VF gets a reset while the
2851 * first one is being processed, that interrupt will be lost, and
2852 * that VF will be stuck in reset forever.
2853 */
2854 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
2855 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
2856 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
2857 i40e_flush(hw);
2858
2859 clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state);
2860 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
2861 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
2862 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
2863 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
2864 vf = &pf->vf[vf_id];
2865 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
2866 if (reg & BIT(bit_idx))
2867 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
2868 i40e_reset_vf(vf, true);
2869 }
2870
2871 return 0;
2872 }
2873
2874 /**
2875 * i40e_ndo_set_vf_mac
2876 * @netdev: network interface device structure
2877 * @vf_id: VF identifier
2878 * @mac: mac address
2879 *
2880 * program VF mac address
2881 **/
2882 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
2883 {
2884 struct i40e_netdev_priv *np = netdev_priv(netdev);
2885 struct i40e_vsi *vsi = np->vsi;
2886 struct i40e_pf *pf = vsi->back;
2887 struct i40e_mac_filter *f;
2888 struct i40e_vf *vf;
2889 int ret = 0;
2890 struct hlist_node *h;
2891 int bkt;
2892
2893 /* validate the request */
2894 if (vf_id >= pf->num_alloc_vfs) {
2895 dev_err(&pf->pdev->dev,
2896 "Invalid VF Identifier %d\n", vf_id);
2897 ret = -EINVAL;
2898 goto error_param;
2899 }
2900
2901 vf = &(pf->vf[vf_id]);
2902 vsi = pf->vsi[vf->lan_vsi_idx];
2903 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
2904 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2905 vf_id);
2906 ret = -EAGAIN;
2907 goto error_param;
2908 }
2909
2910 if (is_multicast_ether_addr(mac)) {
2911 dev_err(&pf->pdev->dev,
2912 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
2913 ret = -EINVAL;
2914 goto error_param;
2915 }
2916
2917 /* Lock once because below invoked function add/del_filter requires
2918 * mac_filter_hash_lock to be held
2919 */
2920 spin_lock_bh(&vsi->mac_filter_hash_lock);
2921
2922 /* delete the temporary mac address */
2923 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
2924 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
2925
2926 /* Delete all the filters for this VSI - we're going to kill it
2927 * anyway.
2928 */
2929 hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
2930 __i40e_del_filter(vsi, f);
2931
2932 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2933
2934 /* program mac filter */
2935 if (i40e_sync_vsi_filters(vsi)) {
2936 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2937 ret = -EIO;
2938 goto error_param;
2939 }
2940 ether_addr_copy(vf->default_lan_addr.addr, mac);
2941
2942 if (is_zero_ether_addr(mac)) {
2943 vf->pf_set_mac = false;
2944 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id);
2945 } else {
2946 vf->pf_set_mac = true;
2947 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n",
2948 mac, vf_id);
2949 }
2950
2951 /* Force the VF driver stop so it has to reload with new MAC address */
2952 i40e_vc_disable_vf(vf);
2953 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2954
2955 error_param:
2956 return ret;
2957 }
2958
2959 /**
2960 * i40e_vsi_has_vlans - True if VSI has configured VLANs
2961 * @vsi: pointer to the vsi
2962 *
2963 * Check if a VSI has configured any VLANs. False if we have a port VLAN or if
2964 * we have no configured VLANs. Do not call while holding the
2965 * mac_filter_hash_lock.
2966 */
2967 static bool i40e_vsi_has_vlans(struct i40e_vsi *vsi)
2968 {
2969 bool have_vlans;
2970
2971 /* If we have a port VLAN, then the VSI cannot have any VLANs
2972 * configured, as all MAC/VLAN filters will be assigned to the PVID.
2973 */
2974 if (vsi->info.pvid)
2975 return false;
2976
2977 /* Since we don't have a PVID, we know that if the device is in VLAN
2978 * mode it must be because of a VLAN filter configured on this VSI.
2979 */
2980 spin_lock_bh(&vsi->mac_filter_hash_lock);
2981 have_vlans = i40e_is_vsi_in_vlan(vsi);
2982 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2983
2984 return have_vlans;
2985 }
2986
2987 /**
2988 * i40e_ndo_set_vf_port_vlan
2989 * @netdev: network interface device structure
2990 * @vf_id: VF identifier
2991 * @vlan_id: mac address
2992 * @qos: priority setting
2993 * @vlan_proto: vlan protocol
2994 *
2995 * program VF vlan id and/or qos
2996 **/
2997 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
2998 u16 vlan_id, u8 qos, __be16 vlan_proto)
2999 {
3000 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
3001 struct i40e_netdev_priv *np = netdev_priv(netdev);
3002 struct i40e_pf *pf = np->vsi->back;
3003 struct i40e_vsi *vsi;
3004 struct i40e_vf *vf;
3005 int ret = 0;
3006
3007 /* validate the request */
3008 if (vf_id >= pf->num_alloc_vfs) {
3009 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3010 ret = -EINVAL;
3011 goto error_pvid;
3012 }
3013
3014 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
3015 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
3016 ret = -EINVAL;
3017 goto error_pvid;
3018 }
3019
3020 if (vlan_proto != htons(ETH_P_8021Q)) {
3021 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
3022 ret = -EPROTONOSUPPORT;
3023 goto error_pvid;
3024 }
3025
3026 vf = &(pf->vf[vf_id]);
3027 vsi = pf->vsi[vf->lan_vsi_idx];
3028 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
3029 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
3030 vf_id);
3031 ret = -EAGAIN;
3032 goto error_pvid;
3033 }
3034
3035 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
3036 /* duplicate request, so just return success */
3037 goto error_pvid;
3038
3039 if (i40e_vsi_has_vlans(vsi)) {
3040 dev_err(&pf->pdev->dev,
3041 "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",
3042 vf_id);
3043 /* Administrator Error - knock the VF offline until he does
3044 * the right thing by reconfiguring his network correctly
3045 * and then reloading the VF driver.
3046 */
3047 i40e_vc_disable_vf(vf);
3048 /* During reset the VF got a new VSI, so refresh the pointer. */
3049 vsi = pf->vsi[vf->lan_vsi_idx];
3050 }
3051
3052 /* Locked once because multiple functions below iterate list */
3053 spin_lock_bh(&vsi->mac_filter_hash_lock);
3054
3055 /* Check for condition where there was already a port VLAN ID
3056 * filter set and now it is being deleted by setting it to zero.
3057 * Additionally check for the condition where there was a port
3058 * VLAN but now there is a new and different port VLAN being set.
3059 * Before deleting all the old VLAN filters we must add new ones
3060 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
3061 * MAC addresses deleted.
3062 */
3063 if ((!(vlan_id || qos) ||
3064 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
3065 vsi->info.pvid) {
3066 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
3067 if (ret) {
3068 dev_info(&vsi->back->pdev->dev,
3069 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
3070 vsi->back->hw.aq.asq_last_status);
3071 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3072 goto error_pvid;
3073 }
3074 }
3075
3076 if (vsi->info.pvid) {
3077 /* remove all filters on the old VLAN */
3078 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &
3079 VLAN_VID_MASK));
3080 }
3081
3082 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3083 if (vlan_id || qos)
3084 ret = i40e_vsi_add_pvid(vsi, vlanprio);
3085 else
3086 i40e_vsi_remove_pvid(vsi);
3087 spin_lock_bh(&vsi->mac_filter_hash_lock);
3088
3089 if (vlan_id) {
3090 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
3091 vlan_id, qos, vf_id);
3092
3093 /* add new VLAN filter for each MAC */
3094 ret = i40e_add_vlan_all_mac(vsi, vlan_id);
3095 if (ret) {
3096 dev_info(&vsi->back->pdev->dev,
3097 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
3098 vsi->back->hw.aq.asq_last_status);
3099 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3100 goto error_pvid;
3101 }
3102
3103 /* remove the previously added non-VLAN MAC filters */
3104 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
3105 }
3106
3107 spin_unlock_bh(&vsi->mac_filter_hash_lock);
3108
3109 /* Schedule the worker thread to take care of applying changes */
3110 i40e_service_event_schedule(vsi->back);
3111
3112 if (ret) {
3113 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
3114 goto error_pvid;
3115 }
3116
3117 /* The Port VLAN needs to be saved across resets the same as the
3118 * default LAN MAC address.
3119 */
3120 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
3121 ret = 0;
3122
3123 error_pvid:
3124 return ret;
3125 }
3126
3127 /**
3128 * i40e_ndo_set_vf_bw
3129 * @netdev: network interface device structure
3130 * @vf_id: VF identifier
3131 * @tx_rate: Tx rate
3132 *
3133 * configure VF Tx rate
3134 **/
3135 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
3136 int max_tx_rate)
3137 {
3138 struct i40e_netdev_priv *np = netdev_priv(netdev);
3139 struct i40e_pf *pf = np->vsi->back;
3140 struct i40e_vsi *vsi;
3141 struct i40e_vf *vf;
3142 int ret = 0;
3143
3144 /* validate the request */
3145 if (vf_id >= pf->num_alloc_vfs) {
3146 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
3147 ret = -EINVAL;
3148 goto error;
3149 }
3150
3151 if (min_tx_rate) {
3152 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
3153 min_tx_rate, vf_id);
3154 return -EINVAL;
3155 }
3156
3157 vf = &(pf->vf[vf_id]);
3158 vsi = pf->vsi[vf->lan_vsi_idx];
3159 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
3160 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
3161 vf_id);
3162 ret = -EAGAIN;
3163 goto error;
3164 }
3165
3166 ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate);
3167 if (ret)
3168 goto error;
3169
3170 vf->tx_rate = max_tx_rate;
3171 error:
3172 return ret;
3173 }
3174
3175 /**
3176 * i40e_ndo_get_vf_config
3177 * @netdev: network interface device structure
3178 * @vf_id: VF identifier
3179 * @ivi: VF configuration structure
3180 *
3181 * return VF configuration
3182 **/
3183 int i40e_ndo_get_vf_config(struct net_device *netdev,
3184 int vf_id, struct ifla_vf_info *ivi)
3185 {
3186 struct i40e_netdev_priv *np = netdev_priv(netdev);
3187 struct i40e_vsi *vsi = np->vsi;
3188 struct i40e_pf *pf = vsi->back;
3189 struct i40e_vf *vf;
3190 int ret = 0;
3191
3192 /* validate the request */
3193 if (vf_id >= pf->num_alloc_vfs) {
3194 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3195 ret = -EINVAL;
3196 goto error_param;
3197 }
3198
3199 vf = &(pf->vf[vf_id]);
3200 /* first vsi is always the LAN vsi */
3201 vsi = pf->vsi[vf->lan_vsi_idx];
3202 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
3203 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
3204 vf_id);
3205 ret = -EAGAIN;
3206 goto error_param;
3207 }
3208
3209 ivi->vf = vf_id;
3210
3211 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
3212
3213 ivi->max_tx_rate = vf->tx_rate;
3214 ivi->min_tx_rate = 0;
3215 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
3216 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
3217 I40E_VLAN_PRIORITY_SHIFT;
3218 if (vf->link_forced == false)
3219 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
3220 else if (vf->link_up == true)
3221 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
3222 else
3223 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
3224 ivi->spoofchk = vf->spoofchk;
3225 ivi->trusted = vf->trusted;
3226 ret = 0;
3227
3228 error_param:
3229 return ret;
3230 }
3231
3232 /**
3233 * i40e_ndo_set_vf_link_state
3234 * @netdev: network interface device structure
3235 * @vf_id: VF identifier
3236 * @link: required link state
3237 *
3238 * Set the link state of a specified VF, regardless of physical link state
3239 **/
3240 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
3241 {
3242 struct i40e_netdev_priv *np = netdev_priv(netdev);
3243 struct i40e_pf *pf = np->vsi->back;
3244 struct virtchnl_pf_event pfe;
3245 struct i40e_hw *hw = &pf->hw;
3246 struct i40e_vf *vf;
3247 int abs_vf_id;
3248 int ret = 0;
3249
3250 /* validate the request */
3251 if (vf_id >= pf->num_alloc_vfs) {
3252 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3253 ret = -EINVAL;
3254 goto error_out;
3255 }
3256
3257 vf = &pf->vf[vf_id];
3258 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
3259
3260 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
3261 pfe.severity = PF_EVENT_SEVERITY_INFO;
3262
3263 switch (link) {
3264 case IFLA_VF_LINK_STATE_AUTO:
3265 vf->link_forced = false;
3266 pfe.event_data.link_event.link_status =
3267 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
3268 pfe.event_data.link_event.link_speed =
3269 (enum virtchnl_link_speed)
3270 pf->hw.phy.link_info.link_speed;
3271 break;
3272 case IFLA_VF_LINK_STATE_ENABLE:
3273 vf->link_forced = true;
3274 vf->link_up = true;
3275 pfe.event_data.link_event.link_status = true;
3276 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
3277 break;
3278 case IFLA_VF_LINK_STATE_DISABLE:
3279 vf->link_forced = true;
3280 vf->link_up = false;
3281 pfe.event_data.link_event.link_status = false;
3282 pfe.event_data.link_event.link_speed = 0;
3283 break;
3284 default:
3285 ret = -EINVAL;
3286 goto error_out;
3287 }
3288 /* Notify the VF of its new link state */
3289 i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
3290 0, (u8 *)&pfe, sizeof(pfe), NULL);
3291
3292 error_out:
3293 return ret;
3294 }
3295
3296 /**
3297 * i40e_ndo_set_vf_spoofchk
3298 * @netdev: network interface device structure
3299 * @vf_id: VF identifier
3300 * @enable: flag to enable or disable feature
3301 *
3302 * Enable or disable VF spoof checking
3303 **/
3304 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
3305 {
3306 struct i40e_netdev_priv *np = netdev_priv(netdev);
3307 struct i40e_vsi *vsi = np->vsi;
3308 struct i40e_pf *pf = vsi->back;
3309 struct i40e_vsi_context ctxt;
3310 struct i40e_hw *hw = &pf->hw;
3311 struct i40e_vf *vf;
3312 int ret = 0;
3313
3314 /* validate the request */
3315 if (vf_id >= pf->num_alloc_vfs) {
3316 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3317 ret = -EINVAL;
3318 goto out;
3319 }
3320
3321 vf = &(pf->vf[vf_id]);
3322 if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
3323 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
3324 vf_id);
3325 ret = -EAGAIN;
3326 goto out;
3327 }
3328
3329 if (enable == vf->spoofchk)
3330 goto out;
3331
3332 vf->spoofchk = enable;
3333 memset(&ctxt, 0, sizeof(ctxt));
3334 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
3335 ctxt.pf_num = pf->hw.pf_id;
3336 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
3337 if (enable)
3338 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
3339 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
3340 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
3341 if (ret) {
3342 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
3343 ret);
3344 ret = -EIO;
3345 }
3346 out:
3347 return ret;
3348 }
3349
3350 /**
3351 * i40e_ndo_set_vf_trust
3352 * @netdev: network interface device structure of the pf
3353 * @vf_id: VF identifier
3354 * @setting: trust setting
3355 *
3356 * Enable or disable VF trust setting
3357 **/
3358 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
3359 {
3360 struct i40e_netdev_priv *np = netdev_priv(netdev);
3361 struct i40e_pf *pf = np->vsi->back;
3362 struct i40e_vf *vf;
3363 int ret = 0;
3364
3365 /* validate the request */
3366 if (vf_id >= pf->num_alloc_vfs) {
3367 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3368 return -EINVAL;
3369 }
3370
3371 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3372 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
3373 return -EINVAL;
3374 }
3375
3376 vf = &pf->vf[vf_id];
3377
3378 if (setting == vf->trusted)
3379 goto out;
3380
3381 vf->trusted = setting;
3382 i40e_vc_disable_vf(vf);
3383 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
3384 vf_id, setting ? "" : "un");
3385 out:
3386 return ret;
3387 }
Linux with added FPC-III support