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1/*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2016 Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
17 *
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
20 *
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 ******************************************************************************/
26
27#include "i40e.h"
28
29/*********************notification routines***********************/
30
31/**
32 * i40e_vc_vf_broadcast
33 * @pf: pointer to the PF structure
34 * @opcode: operation code
35 * @retval: return value
36 * @msg: pointer to the msg buffer
37 * @msglen: msg length
38 *
39 * send a message to all VFs on a given PF
40 **/
41static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
42 enum i40e_virtchnl_ops v_opcode,
43 i40e_status v_retval, u8 *msg,
44 u16 msglen)
45{
46 struct i40e_hw *hw = &pf->hw;
47 struct i40e_vf *vf = pf->vf;
48 int i;
49
50 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
51 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
52 /* Not all vfs are enabled so skip the ones that are not */
53 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
54 !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
55 continue;
56
57 /* Ignore return value on purpose - a given VF may fail, but
58 * we need to keep going and send to all of them
59 */
60 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
61 msg, msglen, NULL);
62 }
63}
64
65/**
66 * i40e_vc_notify_link_state
67 * @vf: pointer to the VF structure
68 *
69 * send a link status message to a single VF
70 **/
71static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
72{
73 struct i40e_virtchnl_pf_event pfe;
74 struct i40e_pf *pf = vf->pf;
75 struct i40e_hw *hw = &pf->hw;
76 struct i40e_link_status *ls = &pf->hw.phy.link_info;
77 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
78
79 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
80 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
81 if (vf->link_forced) {
82 pfe.event_data.link_event.link_status = vf->link_up;
83 pfe.event_data.link_event.link_speed =
84 (vf->link_up ? I40E_LINK_SPEED_40GB : 0);
85 } else {
86 pfe.event_data.link_event.link_status =
87 ls->link_info & I40E_AQ_LINK_UP;
88 pfe.event_data.link_event.link_speed = ls->link_speed;
89 }
90 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
91 0, (u8 *)&pfe, sizeof(pfe), NULL);
92}
93
94/**
95 * i40e_vc_notify_link_state
96 * @pf: pointer to the PF structure
97 *
98 * send a link status message to all VFs on a given PF
99 **/
100void i40e_vc_notify_link_state(struct i40e_pf *pf)
101{
102 int i;
103
104 for (i = 0; i < pf->num_alloc_vfs; i++)
105 i40e_vc_notify_vf_link_state(&pf->vf[i]);
106}
107
108/**
109 * i40e_vc_notify_reset
110 * @pf: pointer to the PF structure
111 *
112 * indicate a pending reset to all VFs on a given PF
113 **/
114void i40e_vc_notify_reset(struct i40e_pf *pf)
115{
116 struct i40e_virtchnl_pf_event pfe;
117
118 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
119 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
120 i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, 0,
121 (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
122}
123
124/**
125 * i40e_vc_notify_vf_reset
126 * @vf: pointer to the VF structure
127 *
128 * indicate a pending reset to the given VF
129 **/
130void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
131{
132 struct i40e_virtchnl_pf_event pfe;
133 int abs_vf_id;
134
135 /* validate the request */
136 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
137 return;
138
139 /* verify if the VF is in either init or active before proceeding */
140 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
141 !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
142 return;
143
144 abs_vf_id = vf->vf_id + vf->pf->hw.func_caps.vf_base_id;
145
146 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
147 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
148 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
149 0, (u8 *)&pfe,
150 sizeof(struct i40e_virtchnl_pf_event), NULL);
151}
152/***********************misc routines*****************************/
153
154/**
155 * i40e_vc_disable_vf
156 * @pf: pointer to the PF info
157 * @vf: pointer to the VF info
158 *
159 * Disable the VF through a SW reset
160 **/
161static inline void i40e_vc_disable_vf(struct i40e_pf *pf, struct i40e_vf *vf)
162{
163 i40e_vc_notify_vf_reset(vf);
164 i40e_reset_vf(vf, false);
165}
166
167/**
168 * i40e_vc_isvalid_vsi_id
169 * @vf: pointer to the VF info
170 * @vsi_id: VF relative VSI id
171 *
172 * check for the valid VSI id
173 **/
174static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
175{
176 struct i40e_pf *pf = vf->pf;
177 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
178
179 return (vsi && (vsi->vf_id == vf->vf_id));
180}
181
182/**
183 * i40e_vc_isvalid_queue_id
184 * @vf: pointer to the VF info
185 * @vsi_id: vsi id
186 * @qid: vsi relative queue id
187 *
188 * check for the valid queue id
189 **/
190static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
191 u8 qid)
192{
193 struct i40e_pf *pf = vf->pf;
194 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
195
196 return (vsi && (qid < vsi->alloc_queue_pairs));
197}
198
199/**
200 * i40e_vc_isvalid_vector_id
201 * @vf: pointer to the VF info
202 * @vector_id: VF relative vector id
203 *
204 * check for the valid vector id
205 **/
206static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
207{
208 struct i40e_pf *pf = vf->pf;
209
210 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
211}
212
213/***********************vf resource mgmt routines*****************/
214
215/**
216 * i40e_vc_get_pf_queue_id
217 * @vf: pointer to the VF info
218 * @vsi_id: id of VSI as provided by the FW
219 * @vsi_queue_id: vsi relative queue id
220 *
221 * return PF relative queue id
222 **/
223static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
224 u8 vsi_queue_id)
225{
226 struct i40e_pf *pf = vf->pf;
227 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
228 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
229
230 if (!vsi)
231 return pf_queue_id;
232
233 if (le16_to_cpu(vsi->info.mapping_flags) &
234 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
235 pf_queue_id =
236 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
237 else
238 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
239 vsi_queue_id;
240
241 return pf_queue_id;
242}
243
244/**
245 * i40e_config_irq_link_list
246 * @vf: pointer to the VF info
247 * @vsi_id: id of VSI as given by the FW
248 * @vecmap: irq map info
249 *
250 * configure irq link list from the map
251 **/
252static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
253 struct i40e_virtchnl_vector_map *vecmap)
254{
255 unsigned long linklistmap = 0, tempmap;
256 struct i40e_pf *pf = vf->pf;
257 struct i40e_hw *hw = &pf->hw;
258 u16 vsi_queue_id, pf_queue_id;
259 enum i40e_queue_type qtype;
260 u16 next_q, vector_id;
261 u32 reg, reg_idx;
262 u16 itr_idx = 0;
263
264 vector_id = vecmap->vector_id;
265 /* setup the head */
266 if (0 == vector_id)
267 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
268 else
269 reg_idx = I40E_VPINT_LNKLSTN(
270 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
271 (vector_id - 1));
272
273 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
274 /* Special case - No queues mapped on this vector */
275 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
276 goto irq_list_done;
277 }
278 tempmap = vecmap->rxq_map;
279 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
280 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
281 vsi_queue_id));
282 }
283
284 tempmap = vecmap->txq_map;
285 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
286 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
287 vsi_queue_id + 1));
288 }
289
290 next_q = find_first_bit(&linklistmap,
291 (I40E_MAX_VSI_QP *
292 I40E_VIRTCHNL_SUPPORTED_QTYPES));
293 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
294 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
295 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
296 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
297
298 wr32(hw, reg_idx, reg);
299
300 while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
301 switch (qtype) {
302 case I40E_QUEUE_TYPE_RX:
303 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
304 itr_idx = vecmap->rxitr_idx;
305 break;
306 case I40E_QUEUE_TYPE_TX:
307 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
308 itr_idx = vecmap->txitr_idx;
309 break;
310 default:
311 break;
312 }
313
314 next_q = find_next_bit(&linklistmap,
315 (I40E_MAX_VSI_QP *
316 I40E_VIRTCHNL_SUPPORTED_QTYPES),
317 next_q + 1);
318 if (next_q <
319 (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
320 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
321 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
322 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id,
323 vsi_queue_id);
324 } else {
325 pf_queue_id = I40E_QUEUE_END_OF_LIST;
326 qtype = 0;
327 }
328
329 /* format for the RQCTL & TQCTL regs is same */
330 reg = (vector_id) |
331 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
332 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
333 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
334 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
335 wr32(hw, reg_idx, reg);
336 }
337
338 /* if the vf is running in polling mode and using interrupt zero,
339 * need to disable auto-mask on enabling zero interrupt for VFs.
340 */
341 if ((vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
342 (vector_id == 0)) {
343 reg = rd32(hw, I40E_GLINT_CTL);
344 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {
345 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;
346 wr32(hw, I40E_GLINT_CTL, reg);
347 }
348 }
349
350irq_list_done:
351 i40e_flush(hw);
352}
353
354/**
355 * i40e_release_iwarp_qvlist
356 * @vf: pointer to the VF.
357 *
358 **/
359static void i40e_release_iwarp_qvlist(struct i40e_vf *vf)
360{
361 struct i40e_pf *pf = vf->pf;
362 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info;
363 u32 msix_vf;
364 u32 i;
365
366 if (!vf->qvlist_info)
367 return;
368
369 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
370 for (i = 0; i < qvlist_info->num_vectors; i++) {
371 struct i40e_virtchnl_iwarp_qv_info *qv_info;
372 u32 next_q_index, next_q_type;
373 struct i40e_hw *hw = &pf->hw;
374 u32 v_idx, reg_idx, reg;
375
376 qv_info = &qvlist_info->qv_info[i];
377 if (!qv_info)
378 continue;
379 v_idx = qv_info->v_idx;
380 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
381 /* Figure out the queue after CEQ and make that the
382 * first queue.
383 */
384 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
385 reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx));
386 next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK)
387 >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT;
388 next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK)
389 >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT;
390
391 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
392 reg = (next_q_index &
393 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
394 (next_q_type <<
395 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
396
397 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
398 }
399 }
400 kfree(vf->qvlist_info);
401 vf->qvlist_info = NULL;
402}
403
404/**
405 * i40e_config_iwarp_qvlist
406 * @vf: pointer to the VF info
407 * @qvlist_info: queue and vector list
408 *
409 * Return 0 on success or < 0 on error
410 **/
411static int i40e_config_iwarp_qvlist(struct i40e_vf *vf,
412 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info)
413{
414 struct i40e_pf *pf = vf->pf;
415 struct i40e_hw *hw = &pf->hw;
416 struct i40e_virtchnl_iwarp_qv_info *qv_info;
417 u32 v_idx, i, reg_idx, reg;
418 u32 next_q_idx, next_q_type;
419 u32 msix_vf, size;
420
421 size = sizeof(struct i40e_virtchnl_iwarp_qvlist_info) +
422 (sizeof(struct i40e_virtchnl_iwarp_qv_info) *
423 (qvlist_info->num_vectors - 1));
424 vf->qvlist_info = kzalloc(size, GFP_KERNEL);
425 vf->qvlist_info->num_vectors = qvlist_info->num_vectors;
426
427 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
428 for (i = 0; i < qvlist_info->num_vectors; i++) {
429 qv_info = &qvlist_info->qv_info[i];
430 if (!qv_info)
431 continue;
432 v_idx = qv_info->v_idx;
433
434 /* Validate vector id belongs to this vf */
435 if (!i40e_vc_isvalid_vector_id(vf, v_idx))
436 goto err;
437
438 vf->qvlist_info->qv_info[i] = *qv_info;
439
440 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
441 /* We might be sharing the interrupt, so get the first queue
442 * index and type, push it down the list by adding the new
443 * queue on top. Also link it with the new queue in CEQCTL.
444 */
445 reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx));
446 next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >>
447 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT);
448 next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >>
449 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
450
451 if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) {
452 reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx;
453 reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK |
454 (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) |
455 (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) |
456 (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) |
457 (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT));
458 wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg);
459
460 reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1);
461 reg = (qv_info->ceq_idx &
462 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) |
463 (I40E_QUEUE_TYPE_PE_CEQ <<
464 I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT);
465 wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg);
466 }
467
468 if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) {
469 reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK |
470 (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) |
471 (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT));
472
473 wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg);
474 }
475 }
476
477 return 0;
478err:
479 kfree(vf->qvlist_info);
480 vf->qvlist_info = NULL;
481 return -EINVAL;
482}
483
484/**
485 * i40e_config_vsi_tx_queue
486 * @vf: pointer to the VF info
487 * @vsi_id: id of VSI as provided by the FW
488 * @vsi_queue_id: vsi relative queue index
489 * @info: config. info
490 *
491 * configure tx queue
492 **/
493static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
494 u16 vsi_queue_id,
495 struct i40e_virtchnl_txq_info *info)
496{
497 struct i40e_pf *pf = vf->pf;
498 struct i40e_hw *hw = &pf->hw;
499 struct i40e_hmc_obj_txq tx_ctx;
500 struct i40e_vsi *vsi;
501 u16 pf_queue_id;
502 u32 qtx_ctl;
503 int ret = 0;
504
505 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
506 vsi = i40e_find_vsi_from_id(pf, vsi_id);
507
508 /* clear the context structure first */
509 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
510
511 /* only set the required fields */
512 tx_ctx.base = info->dma_ring_addr / 128;
513 tx_ctx.qlen = info->ring_len;
514 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
515 tx_ctx.rdylist_act = 0;
516 tx_ctx.head_wb_ena = info->headwb_enabled;
517 tx_ctx.head_wb_addr = info->dma_headwb_addr;
518
519 /* clear the context in the HMC */
520 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
521 if (ret) {
522 dev_err(&pf->pdev->dev,
523 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
524 pf_queue_id, ret);
525 ret = -ENOENT;
526 goto error_context;
527 }
528
529 /* set the context in the HMC */
530 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
531 if (ret) {
532 dev_err(&pf->pdev->dev,
533 "Failed to set VF LAN Tx queue context %d error: %d\n",
534 pf_queue_id, ret);
535 ret = -ENOENT;
536 goto error_context;
537 }
538
539 /* associate this queue with the PCI VF function */
540 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
541 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
542 & I40E_QTX_CTL_PF_INDX_MASK);
543 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
544 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
545 & I40E_QTX_CTL_VFVM_INDX_MASK);
546 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
547 i40e_flush(hw);
548
549error_context:
550 return ret;
551}
552
553/**
554 * i40e_config_vsi_rx_queue
555 * @vf: pointer to the VF info
556 * @vsi_id: id of VSI as provided by the FW
557 * @vsi_queue_id: vsi relative queue index
558 * @info: config. info
559 *
560 * configure rx queue
561 **/
562static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
563 u16 vsi_queue_id,
564 struct i40e_virtchnl_rxq_info *info)
565{
566 struct i40e_pf *pf = vf->pf;
567 struct i40e_hw *hw = &pf->hw;
568 struct i40e_hmc_obj_rxq rx_ctx;
569 u16 pf_queue_id;
570 int ret = 0;
571
572 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
573
574 /* clear the context structure first */
575 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
576
577 /* only set the required fields */
578 rx_ctx.base = info->dma_ring_addr / 128;
579 rx_ctx.qlen = info->ring_len;
580
581 if (info->splithdr_enabled) {
582 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
583 I40E_RX_SPLIT_IP |
584 I40E_RX_SPLIT_TCP_UDP |
585 I40E_RX_SPLIT_SCTP;
586 /* header length validation */
587 if (info->hdr_size > ((2 * 1024) - 64)) {
588 ret = -EINVAL;
589 goto error_param;
590 }
591 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
592
593 /* set splitalways mode 10b */
594 rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT;
595 }
596
597 /* databuffer length validation */
598 if (info->databuffer_size > ((16 * 1024) - 128)) {
599 ret = -EINVAL;
600 goto error_param;
601 }
602 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
603
604 /* max pkt. length validation */
605 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
606 ret = -EINVAL;
607 goto error_param;
608 }
609 rx_ctx.rxmax = info->max_pkt_size;
610
611 /* enable 32bytes desc always */
612 rx_ctx.dsize = 1;
613
614 /* default values */
615 rx_ctx.lrxqthresh = 2;
616 rx_ctx.crcstrip = 1;
617 rx_ctx.prefena = 1;
618 rx_ctx.l2tsel = 1;
619
620 /* clear the context in the HMC */
621 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
622 if (ret) {
623 dev_err(&pf->pdev->dev,
624 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
625 pf_queue_id, ret);
626 ret = -ENOENT;
627 goto error_param;
628 }
629
630 /* set the context in the HMC */
631 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
632 if (ret) {
633 dev_err(&pf->pdev->dev,
634 "Failed to set VF LAN Rx queue context %d error: %d\n",
635 pf_queue_id, ret);
636 ret = -ENOENT;
637 goto error_param;
638 }
639
640error_param:
641 return ret;
642}
643
644/**
645 * i40e_alloc_vsi_res
646 * @vf: pointer to the VF info
647 * @type: type of VSI to allocate
648 *
649 * alloc VF vsi context & resources
650 **/
651static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
652{
653 struct i40e_mac_filter *f = NULL;
654 struct i40e_pf *pf = vf->pf;
655 struct i40e_vsi *vsi;
656 int ret = 0;
657
658 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
659
660 if (!vsi) {
661 dev_err(&pf->pdev->dev,
662 "add vsi failed for VF %d, aq_err %d\n",
663 vf->vf_id, pf->hw.aq.asq_last_status);
664 ret = -ENOENT;
665 goto error_alloc_vsi_res;
666 }
667 if (type == I40E_VSI_SRIOV) {
668 u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
669
670 vf->lan_vsi_idx = vsi->idx;
671 vf->lan_vsi_id = vsi->id;
672 /* If the port VLAN has been configured and then the
673 * VF driver was removed then the VSI port VLAN
674 * configuration was destroyed. Check if there is
675 * a port VLAN and restore the VSI configuration if
676 * needed.
677 */
678 if (vf->port_vlan_id)
679 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
680
681 spin_lock_bh(&vsi->mac_filter_list_lock);
682 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
683 f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
684 vf->port_vlan_id ? vf->port_vlan_id : -1,
685 true, false);
686 if (!f)
687 dev_info(&pf->pdev->dev,
688 "Could not add MAC filter %pM for VF %d\n",
689 vf->default_lan_addr.addr, vf->vf_id);
690 }
691 f = i40e_add_filter(vsi, brdcast,
692 vf->port_vlan_id ? vf->port_vlan_id : -1,
693 true, false);
694 if (!f)
695 dev_info(&pf->pdev->dev,
696 "Could not allocate VF broadcast filter\n");
697 spin_unlock_bh(&vsi->mac_filter_list_lock);
698 }
699
700 /* program mac filter */
701 ret = i40e_sync_vsi_filters(vsi);
702 if (ret)
703 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
704
705 /* Set VF bandwidth if specified */
706 if (vf->tx_rate) {
707 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
708 vf->tx_rate / 50, 0, NULL);
709 if (ret)
710 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
711 vf->vf_id, ret);
712 }
713
714error_alloc_vsi_res:
715 return ret;
716}
717
718/**
719 * i40e_enable_vf_mappings
720 * @vf: pointer to the VF info
721 *
722 * enable VF mappings
723 **/
724static void i40e_enable_vf_mappings(struct i40e_vf *vf)
725{
726 struct i40e_pf *pf = vf->pf;
727 struct i40e_hw *hw = &pf->hw;
728 u32 reg, total_queue_pairs = 0;
729 int j;
730
731 /* Tell the hardware we're using noncontiguous mapping. HW requires
732 * that VF queues be mapped using this method, even when they are
733 * contiguous in real life
734 */
735 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
736 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
737
738 /* enable VF vplan_qtable mappings */
739 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
740 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
741
742 /* map PF queues to VF queues */
743 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) {
744 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j);
745
746 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
747 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
748 total_queue_pairs++;
749 }
750
751 /* map PF queues to VSI */
752 for (j = 0; j < 7; j++) {
753 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) {
754 reg = 0x07FF07FF; /* unused */
755 } else {
756 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
757 j * 2);
758 reg = qid;
759 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
760 (j * 2) + 1);
761 reg |= qid << 16;
762 }
763 i40e_write_rx_ctl(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id),
764 reg);
765 }
766
767 i40e_flush(hw);
768}
769
770/**
771 * i40e_disable_vf_mappings
772 * @vf: pointer to the VF info
773 *
774 * disable VF mappings
775 **/
776static void i40e_disable_vf_mappings(struct i40e_vf *vf)
777{
778 struct i40e_pf *pf = vf->pf;
779 struct i40e_hw *hw = &pf->hw;
780 int i;
781
782 /* disable qp mappings */
783 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
784 for (i = 0; i < I40E_MAX_VSI_QP; i++)
785 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
786 I40E_QUEUE_END_OF_LIST);
787 i40e_flush(hw);
788}
789
790/**
791 * i40e_free_vf_res
792 * @vf: pointer to the VF info
793 *
794 * free VF resources
795 **/
796static void i40e_free_vf_res(struct i40e_vf *vf)
797{
798 struct i40e_pf *pf = vf->pf;
799 struct i40e_hw *hw = &pf->hw;
800 u32 reg_idx, reg;
801 int i, msix_vf;
802
803 /* free vsi & disconnect it from the parent uplink */
804 if (vf->lan_vsi_idx) {
805 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
806 vf->lan_vsi_idx = 0;
807 vf->lan_vsi_id = 0;
808 }
809 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
810
811 /* disable interrupts so the VF starts in a known state */
812 for (i = 0; i < msix_vf; i++) {
813 /* format is same for both registers */
814 if (0 == i)
815 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
816 else
817 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
818 (vf->vf_id))
819 + (i - 1));
820 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
821 i40e_flush(hw);
822 }
823
824 /* clear the irq settings */
825 for (i = 0; i < msix_vf; i++) {
826 /* format is same for both registers */
827 if (0 == i)
828 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
829 else
830 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
831 (vf->vf_id))
832 + (i - 1));
833 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
834 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
835 wr32(hw, reg_idx, reg);
836 i40e_flush(hw);
837 }
838 /* reset some of the state varibles keeping
839 * track of the resources
840 */
841 vf->num_queue_pairs = 0;
842 vf->vf_states = 0;
843 clear_bit(I40E_VF_STAT_INIT, &vf->vf_states);
844}
845
846/**
847 * i40e_alloc_vf_res
848 * @vf: pointer to the VF info
849 *
850 * allocate VF resources
851 **/
852static int i40e_alloc_vf_res(struct i40e_vf *vf)
853{
854 struct i40e_pf *pf = vf->pf;
855 int total_queue_pairs = 0;
856 int ret;
857
858 /* allocate hw vsi context & associated resources */
859 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
860 if (ret)
861 goto error_alloc;
862 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
863 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
864
865 /* store the total qps number for the runtime
866 * VF req validation
867 */
868 vf->num_queue_pairs = total_queue_pairs;
869
870 /* VF is now completely initialized */
871 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
872
873error_alloc:
874 if (ret)
875 i40e_free_vf_res(vf);
876
877 return ret;
878}
879
880#define VF_DEVICE_STATUS 0xAA
881#define VF_TRANS_PENDING_MASK 0x20
882/**
883 * i40e_quiesce_vf_pci
884 * @vf: pointer to the VF structure
885 *
886 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
887 * if the transactions never clear.
888 **/
889static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
890{
891 struct i40e_pf *pf = vf->pf;
892 struct i40e_hw *hw = &pf->hw;
893 int vf_abs_id, i;
894 u32 reg;
895
896 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
897
898 wr32(hw, I40E_PF_PCI_CIAA,
899 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
900 for (i = 0; i < 100; i++) {
901 reg = rd32(hw, I40E_PF_PCI_CIAD);
902 if ((reg & VF_TRANS_PENDING_MASK) == 0)
903 return 0;
904 udelay(1);
905 }
906 return -EIO;
907}
908
909/**
910 * i40e_reset_vf
911 * @vf: pointer to the VF structure
912 * @flr: VFLR was issued or not
913 *
914 * reset the VF
915 **/
916void i40e_reset_vf(struct i40e_vf *vf, bool flr)
917{
918 struct i40e_pf *pf = vf->pf;
919 struct i40e_hw *hw = &pf->hw;
920 bool rsd = false;
921 int i;
922 u32 reg;
923
924 if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
925 return;
926
927 /* warn the VF */
928 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
929
930 /* In the case of a VFLR, the HW has already reset the VF and we
931 * just need to clean up, so don't hit the VFRTRIG register.
932 */
933 if (!flr) {
934 /* reset VF using VPGEN_VFRTRIG reg */
935 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
936 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
937 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
938 i40e_flush(hw);
939 }
940
941 if (i40e_quiesce_vf_pci(vf))
942 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
943 vf->vf_id);
944
945 /* poll VPGEN_VFRSTAT reg to make sure
946 * that reset is complete
947 */
948 for (i = 0; i < 10; i++) {
949 /* VF reset requires driver to first reset the VF and then
950 * poll the status register to make sure that the reset
951 * completed successfully. Due to internal HW FIFO flushes,
952 * we must wait 10ms before the register will be valid.
953 */
954 usleep_range(10000, 20000);
955 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
956 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
957 rsd = true;
958 break;
959 }
960 }
961
962 if (flr)
963 usleep_range(10000, 20000);
964
965 if (!rsd)
966 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
967 vf->vf_id);
968 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
969 /* clear the reset bit in the VPGEN_VFRTRIG reg */
970 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
971 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
972 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
973
974 /* On initial reset, we won't have any queues */
975 if (vf->lan_vsi_idx == 0)
976 goto complete_reset;
977
978 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false);
979complete_reset:
980 /* reallocate VF resources to reset the VSI state */
981 i40e_free_vf_res(vf);
982 if (!i40e_alloc_vf_res(vf)) {
983 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
984 i40e_enable_vf_mappings(vf);
985 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
986 clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
987 i40e_notify_client_of_vf_reset(pf, abs_vf_id);
988 }
989 /* tell the VF the reset is done */
990 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
991 i40e_flush(hw);
992 clear_bit(__I40E_VF_DISABLE, &pf->state);
993}
994
995/**
996 * i40e_free_vfs
997 * @pf: pointer to the PF structure
998 *
999 * free VF resources
1000 **/
1001void i40e_free_vfs(struct i40e_pf *pf)
1002{
1003 struct i40e_hw *hw = &pf->hw;
1004 u32 reg_idx, bit_idx;
1005 int i, tmp, vf_id;
1006
1007 if (!pf->vf)
1008 return;
1009 while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
1010 usleep_range(1000, 2000);
1011
1012 i40e_notify_client_of_vf_enable(pf, 0);
1013 for (i = 0; i < pf->num_alloc_vfs; i++)
1014 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
1015 i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
1016 false);
1017
1018 /* Disable IOV before freeing resources. This lets any VF drivers
1019 * running in the host get themselves cleaned up before we yank
1020 * the carpet out from underneath their feet.
1021 */
1022 if (!pci_vfs_assigned(pf->pdev))
1023 pci_disable_sriov(pf->pdev);
1024 else
1025 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1026
1027 msleep(20); /* let any messages in transit get finished up */
1028
1029 /* free up VF resources */
1030 tmp = pf->num_alloc_vfs;
1031 pf->num_alloc_vfs = 0;
1032 for (i = 0; i < tmp; i++) {
1033 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
1034 i40e_free_vf_res(&pf->vf[i]);
1035 /* disable qp mappings */
1036 i40e_disable_vf_mappings(&pf->vf[i]);
1037 }
1038
1039 kfree(pf->vf);
1040 pf->vf = NULL;
1041
1042 /* This check is for when the driver is unloaded while VFs are
1043 * assigned. Setting the number of VFs to 0 through sysfs is caught
1044 * before this function ever gets called.
1045 */
1046 if (!pci_vfs_assigned(pf->pdev)) {
1047 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1048 * work correctly when SR-IOV gets re-enabled.
1049 */
1050 for (vf_id = 0; vf_id < tmp; vf_id++) {
1051 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1052 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1053 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1054 }
1055 }
1056 clear_bit(__I40E_VF_DISABLE, &pf->state);
1057}
1058
1059#ifdef CONFIG_PCI_IOV
1060/**
1061 * i40e_alloc_vfs
1062 * @pf: pointer to the PF structure
1063 * @num_alloc_vfs: number of VFs to allocate
1064 *
1065 * allocate VF resources
1066 **/
1067int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1068{
1069 struct i40e_vf *vfs;
1070 int i, ret = 0;
1071
1072 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1073 i40e_irq_dynamic_disable_icr0(pf);
1074
1075 /* Check to see if we're just allocating resources for extant VFs */
1076 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1077 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1078 if (ret) {
1079 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1080 pf->num_alloc_vfs = 0;
1081 goto err_iov;
1082 }
1083 }
1084 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1085 /* allocate memory */
1086 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1087 if (!vfs) {
1088 ret = -ENOMEM;
1089 goto err_alloc;
1090 }
1091 pf->vf = vfs;
1092
1093 /* apply default profile */
1094 for (i = 0; i < num_alloc_vfs; i++) {
1095 vfs[i].pf = pf;
1096 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1097 vfs[i].vf_id = i;
1098
1099 /* assign default capabilities */
1100 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1101 vfs[i].spoofchk = true;
1102 /* VF resources get allocated during reset */
1103 i40e_reset_vf(&vfs[i], false);
1104
1105 }
1106 pf->num_alloc_vfs = num_alloc_vfs;
1107
1108err_alloc:
1109 if (ret)
1110 i40e_free_vfs(pf);
1111err_iov:
1112 /* Re-enable interrupt 0. */
1113 i40e_irq_dynamic_enable_icr0(pf, false);
1114 return ret;
1115}
1116
1117#endif
1118/**
1119 * i40e_pci_sriov_enable
1120 * @pdev: pointer to a pci_dev structure
1121 * @num_vfs: number of VFs to allocate
1122 *
1123 * Enable or change the number of VFs
1124 **/
1125static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1126{
1127#ifdef CONFIG_PCI_IOV
1128 struct i40e_pf *pf = pci_get_drvdata(pdev);
1129 int pre_existing_vfs = pci_num_vf(pdev);
1130 int err = 0;
1131
1132 if (test_bit(__I40E_TESTING, &pf->state)) {
1133 dev_warn(&pdev->dev,
1134 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1135 err = -EPERM;
1136 goto err_out;
1137 }
1138
1139 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1140 i40e_free_vfs(pf);
1141 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1142 goto out;
1143
1144 if (num_vfs > pf->num_req_vfs) {
1145 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1146 num_vfs, pf->num_req_vfs);
1147 err = -EPERM;
1148 goto err_out;
1149 }
1150
1151 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1152 err = i40e_alloc_vfs(pf, num_vfs);
1153 if (err) {
1154 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1155 goto err_out;
1156 }
1157
1158out:
1159 return num_vfs;
1160
1161err_out:
1162 return err;
1163#endif
1164 return 0;
1165}
1166
1167/**
1168 * i40e_pci_sriov_configure
1169 * @pdev: pointer to a pci_dev structure
1170 * @num_vfs: number of VFs to allocate
1171 *
1172 * Enable or change the number of VFs. Called when the user updates the number
1173 * of VFs in sysfs.
1174 **/
1175int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1176{
1177 struct i40e_pf *pf = pci_get_drvdata(pdev);
1178
1179 if (num_vfs) {
1180 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1181 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1182 i40e_do_reset_safe(pf,
1183 BIT_ULL(__I40E_PF_RESET_REQUESTED));
1184 }
1185 return i40e_pci_sriov_enable(pdev, num_vfs);
1186 }
1187
1188 if (!pci_vfs_assigned(pf->pdev)) {
1189 i40e_free_vfs(pf);
1190 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1191 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
1192 } else {
1193 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1194 return -EINVAL;
1195 }
1196 return 0;
1197}
1198
1199/***********************virtual channel routines******************/
1200
1201/**
1202 * i40e_vc_send_msg_to_vf
1203 * @vf: pointer to the VF info
1204 * @v_opcode: virtual channel opcode
1205 * @v_retval: virtual channel return value
1206 * @msg: pointer to the msg buffer
1207 * @msglen: msg length
1208 *
1209 * send msg to VF
1210 **/
1211static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1212 u32 v_retval, u8 *msg, u16 msglen)
1213{
1214 struct i40e_pf *pf;
1215 struct i40e_hw *hw;
1216 int abs_vf_id;
1217 i40e_status aq_ret;
1218
1219 /* validate the request */
1220 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1221 return -EINVAL;
1222
1223 pf = vf->pf;
1224 hw = &pf->hw;
1225 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1226
1227 /* single place to detect unsuccessful return values */
1228 if (v_retval) {
1229 vf->num_invalid_msgs++;
1230 dev_err(&pf->pdev->dev, "VF %d failed opcode %d, error: %d\n",
1231 vf->vf_id, v_opcode, v_retval);
1232 if (vf->num_invalid_msgs >
1233 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1234 dev_err(&pf->pdev->dev,
1235 "Number of invalid messages exceeded for VF %d\n",
1236 vf->vf_id);
1237 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1238 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1239 }
1240 } else {
1241 vf->num_valid_msgs++;
1242 /* reset the invalid counter, if a valid message is received. */
1243 vf->num_invalid_msgs = 0;
1244 }
1245
1246 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1247 msg, msglen, NULL);
1248 if (aq_ret) {
1249 dev_err(&pf->pdev->dev,
1250 "Unable to send the message to VF %d aq_err %d\n",
1251 vf->vf_id, pf->hw.aq.asq_last_status);
1252 return -EIO;
1253 }
1254
1255 return 0;
1256}
1257
1258/**
1259 * i40e_vc_send_resp_to_vf
1260 * @vf: pointer to the VF info
1261 * @opcode: operation code
1262 * @retval: return value
1263 *
1264 * send resp msg to VF
1265 **/
1266static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1267 enum i40e_virtchnl_ops opcode,
1268 i40e_status retval)
1269{
1270 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1271}
1272
1273/**
1274 * i40e_vc_get_version_msg
1275 * @vf: pointer to the VF info
1276 *
1277 * called from the VF to request the API version used by the PF
1278 **/
1279static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1280{
1281 struct i40e_virtchnl_version_info info = {
1282 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1283 };
1284
1285 vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg;
1286 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1287 if (VF_IS_V10(vf))
1288 info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1289 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1290 I40E_SUCCESS, (u8 *)&info,
1291 sizeof(struct
1292 i40e_virtchnl_version_info));
1293}
1294
1295/**
1296 * i40e_vc_get_vf_resources_msg
1297 * @vf: pointer to the VF info
1298 * @msg: pointer to the msg buffer
1299 * @msglen: msg length
1300 *
1301 * called from the VF to request its resources
1302 **/
1303static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1304{
1305 struct i40e_virtchnl_vf_resource *vfres = NULL;
1306 struct i40e_pf *pf = vf->pf;
1307 i40e_status aq_ret = 0;
1308 struct i40e_vsi *vsi;
1309 int i = 0, len = 0;
1310 int num_vsis = 1;
1311 int ret;
1312
1313 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1314 aq_ret = I40E_ERR_PARAM;
1315 goto err;
1316 }
1317
1318 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1319 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1320
1321 vfres = kzalloc(len, GFP_KERNEL);
1322 if (!vfres) {
1323 aq_ret = I40E_ERR_NO_MEMORY;
1324 len = 0;
1325 goto err;
1326 }
1327 if (VF_IS_V11(vf))
1328 vf->driver_caps = *(u32 *)msg;
1329 else
1330 vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
1331 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
1332 I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1333
1334 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1335 vsi = pf->vsi[vf->lan_vsi_idx];
1336 if (!vsi->info.pvid)
1337 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1338
1339 if (i40e_vf_client_capable(pf, vf->vf_id, I40E_CLIENT_IWARP) &&
1340 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_IWARP)) {
1341 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_IWARP;
1342 set_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states);
1343 }
1344
1345 if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) {
1346 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ)
1347 vfres->vf_offload_flags |=
1348 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1349 } else {
1350 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG;
1351 }
1352
1353 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
1354 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
1355 vfres->vf_offload_flags |=
1356 I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
1357 }
1358
1359 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING)
1360 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1361
1362 if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) {
1363 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1364 vfres->vf_offload_flags |=
1365 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
1366 }
1367
1368 vfres->num_vsis = num_vsis;
1369 vfres->num_queue_pairs = vf->num_queue_pairs;
1370 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1371 if (vf->lan_vsi_idx) {
1372 vfres->vsi_res[i].vsi_id = vf->lan_vsi_id;
1373 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1374 vfres->vsi_res[i].num_queue_pairs = vsi->alloc_queue_pairs;
1375 /* VFs only use TC 0 */
1376 vfres->vsi_res[i].qset_handle
1377 = le16_to_cpu(vsi->info.qs_handle[0]);
1378 ether_addr_copy(vfres->vsi_res[i].default_mac_addr,
1379 vf->default_lan_addr.addr);
1380 i++;
1381 }
1382 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1383
1384err:
1385 /* send the response back to the VF */
1386 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1387 aq_ret, (u8 *)vfres, len);
1388
1389 kfree(vfres);
1390 return ret;
1391}
1392
1393/**
1394 * i40e_vc_reset_vf_msg
1395 * @vf: pointer to the VF info
1396 * @msg: pointer to the msg buffer
1397 * @msglen: msg length
1398 *
1399 * called from the VF to reset itself,
1400 * unlike other virtchnl messages, PF driver
1401 * doesn't send the response back to the VF
1402 **/
1403static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1404{
1405 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1406 i40e_reset_vf(vf, false);
1407}
1408
1409/**
1410 * i40e_vc_config_promiscuous_mode_msg
1411 * @vf: pointer to the VF info
1412 * @msg: pointer to the msg buffer
1413 * @msglen: msg length
1414 *
1415 * called from the VF to configure the promiscuous mode of
1416 * VF vsis
1417 **/
1418static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1419 u8 *msg, u16 msglen)
1420{
1421 struct i40e_virtchnl_promisc_info *info =
1422 (struct i40e_virtchnl_promisc_info *)msg;
1423 struct i40e_pf *pf = vf->pf;
1424 struct i40e_hw *hw = &pf->hw;
1425 struct i40e_vsi *vsi;
1426 bool allmulti = false;
1427 i40e_status aq_ret;
1428
1429 vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1430 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1431 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1432 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1433 (vsi->type != I40E_VSI_FCOE)) {
1434 aq_ret = I40E_ERR_PARAM;
1435 goto error_param;
1436 }
1437 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1438 allmulti = true;
1439 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
1440 allmulti, NULL);
1441
1442error_param:
1443 /* send the response to the VF */
1444 return i40e_vc_send_resp_to_vf(vf,
1445 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1446 aq_ret);
1447}
1448
1449/**
1450 * i40e_vc_config_queues_msg
1451 * @vf: pointer to the VF info
1452 * @msg: pointer to the msg buffer
1453 * @msglen: msg length
1454 *
1455 * called from the VF to configure the rx/tx
1456 * queues
1457 **/
1458static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1459{
1460 struct i40e_virtchnl_vsi_queue_config_info *qci =
1461 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1462 struct i40e_virtchnl_queue_pair_info *qpi;
1463 struct i40e_pf *pf = vf->pf;
1464 u16 vsi_id, vsi_queue_id;
1465 i40e_status aq_ret = 0;
1466 int i;
1467
1468 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1469 aq_ret = I40E_ERR_PARAM;
1470 goto error_param;
1471 }
1472
1473 vsi_id = qci->vsi_id;
1474 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1475 aq_ret = I40E_ERR_PARAM;
1476 goto error_param;
1477 }
1478 for (i = 0; i < qci->num_queue_pairs; i++) {
1479 qpi = &qci->qpair[i];
1480 vsi_queue_id = qpi->txq.queue_id;
1481 if ((qpi->txq.vsi_id != vsi_id) ||
1482 (qpi->rxq.vsi_id != vsi_id) ||
1483 (qpi->rxq.queue_id != vsi_queue_id) ||
1484 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1485 aq_ret = I40E_ERR_PARAM;
1486 goto error_param;
1487 }
1488
1489 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1490 &qpi->rxq) ||
1491 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1492 &qpi->txq)) {
1493 aq_ret = I40E_ERR_PARAM;
1494 goto error_param;
1495 }
1496 }
1497 /* set vsi num_queue_pairs in use to num configured by VF */
1498 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1499
1500error_param:
1501 /* send the response to the VF */
1502 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1503 aq_ret);
1504}
1505
1506/**
1507 * i40e_vc_config_irq_map_msg
1508 * @vf: pointer to the VF info
1509 * @msg: pointer to the msg buffer
1510 * @msglen: msg length
1511 *
1512 * called from the VF to configure the irq to
1513 * queue map
1514 **/
1515static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1516{
1517 struct i40e_virtchnl_irq_map_info *irqmap_info =
1518 (struct i40e_virtchnl_irq_map_info *)msg;
1519 struct i40e_virtchnl_vector_map *map;
1520 u16 vsi_id, vsi_queue_id, vector_id;
1521 i40e_status aq_ret = 0;
1522 unsigned long tempmap;
1523 int i;
1524
1525 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1526 aq_ret = I40E_ERR_PARAM;
1527 goto error_param;
1528 }
1529
1530 for (i = 0; i < irqmap_info->num_vectors; i++) {
1531 map = &irqmap_info->vecmap[i];
1532
1533 vector_id = map->vector_id;
1534 vsi_id = map->vsi_id;
1535 /* validate msg params */
1536 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1537 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1538 aq_ret = I40E_ERR_PARAM;
1539 goto error_param;
1540 }
1541
1542 /* lookout for the invalid queue index */
1543 tempmap = map->rxq_map;
1544 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1545 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1546 vsi_queue_id)) {
1547 aq_ret = I40E_ERR_PARAM;
1548 goto error_param;
1549 }
1550 }
1551
1552 tempmap = map->txq_map;
1553 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1554 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1555 vsi_queue_id)) {
1556 aq_ret = I40E_ERR_PARAM;
1557 goto error_param;
1558 }
1559 }
1560
1561 i40e_config_irq_link_list(vf, vsi_id, map);
1562 }
1563error_param:
1564 /* send the response to the VF */
1565 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1566 aq_ret);
1567}
1568
1569/**
1570 * i40e_vc_enable_queues_msg
1571 * @vf: pointer to the VF info
1572 * @msg: pointer to the msg buffer
1573 * @msglen: msg length
1574 *
1575 * called from the VF to enable all or specific queue(s)
1576 **/
1577static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1578{
1579 struct i40e_virtchnl_queue_select *vqs =
1580 (struct i40e_virtchnl_queue_select *)msg;
1581 struct i40e_pf *pf = vf->pf;
1582 u16 vsi_id = vqs->vsi_id;
1583 i40e_status aq_ret = 0;
1584
1585 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1586 aq_ret = I40E_ERR_PARAM;
1587 goto error_param;
1588 }
1589
1590 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1591 aq_ret = I40E_ERR_PARAM;
1592 goto error_param;
1593 }
1594
1595 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1596 aq_ret = I40E_ERR_PARAM;
1597 goto error_param;
1598 }
1599
1600 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true))
1601 aq_ret = I40E_ERR_TIMEOUT;
1602error_param:
1603 /* send the response to the VF */
1604 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1605 aq_ret);
1606}
1607
1608/**
1609 * i40e_vc_disable_queues_msg
1610 * @vf: pointer to the VF info
1611 * @msg: pointer to the msg buffer
1612 * @msglen: msg length
1613 *
1614 * called from the VF to disable all or specific
1615 * queue(s)
1616 **/
1617static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1618{
1619 struct i40e_virtchnl_queue_select *vqs =
1620 (struct i40e_virtchnl_queue_select *)msg;
1621 struct i40e_pf *pf = vf->pf;
1622 i40e_status aq_ret = 0;
1623
1624 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1625 aq_ret = I40E_ERR_PARAM;
1626 goto error_param;
1627 }
1628
1629 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1630 aq_ret = I40E_ERR_PARAM;
1631 goto error_param;
1632 }
1633
1634 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1635 aq_ret = I40E_ERR_PARAM;
1636 goto error_param;
1637 }
1638
1639 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false))
1640 aq_ret = I40E_ERR_TIMEOUT;
1641
1642error_param:
1643 /* send the response to the VF */
1644 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1645 aq_ret);
1646}
1647
1648/**
1649 * i40e_vc_get_stats_msg
1650 * @vf: pointer to the VF info
1651 * @msg: pointer to the msg buffer
1652 * @msglen: msg length
1653 *
1654 * called from the VF to get vsi stats
1655 **/
1656static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1657{
1658 struct i40e_virtchnl_queue_select *vqs =
1659 (struct i40e_virtchnl_queue_select *)msg;
1660 struct i40e_pf *pf = vf->pf;
1661 struct i40e_eth_stats stats;
1662 i40e_status aq_ret = 0;
1663 struct i40e_vsi *vsi;
1664
1665 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1666
1667 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1668 aq_ret = I40E_ERR_PARAM;
1669 goto error_param;
1670 }
1671
1672 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1673 aq_ret = I40E_ERR_PARAM;
1674 goto error_param;
1675 }
1676
1677 vsi = pf->vsi[vf->lan_vsi_idx];
1678 if (!vsi) {
1679 aq_ret = I40E_ERR_PARAM;
1680 goto error_param;
1681 }
1682 i40e_update_eth_stats(vsi);
1683 stats = vsi->eth_stats;
1684
1685error_param:
1686 /* send the response back to the VF */
1687 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1688 (u8 *)&stats, sizeof(stats));
1689}
1690
1691/**
1692 * i40e_check_vf_permission
1693 * @vf: pointer to the VF info
1694 * @macaddr: pointer to the MAC Address being checked
1695 *
1696 * Check if the VF has permission to add or delete unicast MAC address
1697 * filters and return error code -EPERM if not. Then check if the
1698 * address filter requested is broadcast or zero and if so return
1699 * an invalid MAC address error code.
1700 **/
1701static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1702{
1703 struct i40e_pf *pf = vf->pf;
1704 int ret = 0;
1705
1706 if (is_broadcast_ether_addr(macaddr) ||
1707 is_zero_ether_addr(macaddr)) {
1708 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1709 ret = I40E_ERR_INVALID_MAC_ADDR;
1710 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1711 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1712 /* If the host VMM administrator has set the VF MAC address
1713 * administratively via the ndo_set_vf_mac command then deny
1714 * permission to the VF to add or delete unicast MAC addresses.
1715 * The VF may request to set the MAC address filter already
1716 * assigned to it so do not return an error in that case.
1717 */
1718 dev_err(&pf->pdev->dev,
1719 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
1720 ret = -EPERM;
1721 }
1722 return ret;
1723}
1724
1725/**
1726 * i40e_vc_add_mac_addr_msg
1727 * @vf: pointer to the VF info
1728 * @msg: pointer to the msg buffer
1729 * @msglen: msg length
1730 *
1731 * add guest mac address filter
1732 **/
1733static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1734{
1735 struct i40e_virtchnl_ether_addr_list *al =
1736 (struct i40e_virtchnl_ether_addr_list *)msg;
1737 struct i40e_pf *pf = vf->pf;
1738 struct i40e_vsi *vsi = NULL;
1739 u16 vsi_id = al->vsi_id;
1740 i40e_status ret = 0;
1741 int i;
1742
1743 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1744 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1745 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1746 ret = I40E_ERR_PARAM;
1747 goto error_param;
1748 }
1749
1750 for (i = 0; i < al->num_elements; i++) {
1751 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1752 if (ret)
1753 goto error_param;
1754 }
1755 vsi = pf->vsi[vf->lan_vsi_idx];
1756
1757 /* Lock once, because all function inside for loop accesses VSI's
1758 * MAC filter list which needs to be protected using same lock.
1759 */
1760 spin_lock_bh(&vsi->mac_filter_list_lock);
1761
1762 /* add new addresses to the list */
1763 for (i = 0; i < al->num_elements; i++) {
1764 struct i40e_mac_filter *f;
1765
1766 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1767 if (!f) {
1768 if (i40e_is_vsi_in_vlan(vsi))
1769 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1770 true, false);
1771 else
1772 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1773 true, false);
1774 }
1775
1776 if (!f) {
1777 dev_err(&pf->pdev->dev,
1778 "Unable to add MAC filter %pM for VF %d\n",
1779 al->list[i].addr, vf->vf_id);
1780 ret = I40E_ERR_PARAM;
1781 spin_unlock_bh(&vsi->mac_filter_list_lock);
1782 goto error_param;
1783 }
1784 }
1785 spin_unlock_bh(&vsi->mac_filter_list_lock);
1786
1787 /* program the updated filter list */
1788 ret = i40e_sync_vsi_filters(vsi);
1789 if (ret)
1790 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
1791 vf->vf_id, ret);
1792
1793error_param:
1794 /* send the response to the VF */
1795 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1796 ret);
1797}
1798
1799/**
1800 * i40e_vc_del_mac_addr_msg
1801 * @vf: pointer to the VF info
1802 * @msg: pointer to the msg buffer
1803 * @msglen: msg length
1804 *
1805 * remove guest mac address filter
1806 **/
1807static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1808{
1809 struct i40e_virtchnl_ether_addr_list *al =
1810 (struct i40e_virtchnl_ether_addr_list *)msg;
1811 struct i40e_pf *pf = vf->pf;
1812 struct i40e_vsi *vsi = NULL;
1813 u16 vsi_id = al->vsi_id;
1814 i40e_status ret = 0;
1815 int i;
1816
1817 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1818 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1819 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1820 ret = I40E_ERR_PARAM;
1821 goto error_param;
1822 }
1823
1824 for (i = 0; i < al->num_elements; i++) {
1825 if (is_broadcast_ether_addr(al->list[i].addr) ||
1826 is_zero_ether_addr(al->list[i].addr)) {
1827 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
1828 al->list[i].addr, vf->vf_id);
1829 ret = I40E_ERR_INVALID_MAC_ADDR;
1830 goto error_param;
1831 }
1832 }
1833 vsi = pf->vsi[vf->lan_vsi_idx];
1834
1835 spin_lock_bh(&vsi->mac_filter_list_lock);
1836 /* delete addresses from the list */
1837 for (i = 0; i < al->num_elements; i++)
1838 if (i40e_del_mac_all_vlan(vsi, al->list[i].addr, true, false)) {
1839 ret = I40E_ERR_INVALID_MAC_ADDR;
1840 spin_unlock_bh(&vsi->mac_filter_list_lock);
1841 goto error_param;
1842 }
1843
1844 spin_unlock_bh(&vsi->mac_filter_list_lock);
1845
1846 /* program the updated filter list */
1847 ret = i40e_sync_vsi_filters(vsi);
1848 if (ret)
1849 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
1850 vf->vf_id, ret);
1851
1852error_param:
1853 /* send the response to the VF */
1854 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
1855 ret);
1856}
1857
1858/**
1859 * i40e_vc_add_vlan_msg
1860 * @vf: pointer to the VF info
1861 * @msg: pointer to the msg buffer
1862 * @msglen: msg length
1863 *
1864 * program guest vlan id
1865 **/
1866static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1867{
1868 struct i40e_virtchnl_vlan_filter_list *vfl =
1869 (struct i40e_virtchnl_vlan_filter_list *)msg;
1870 struct i40e_pf *pf = vf->pf;
1871 struct i40e_vsi *vsi = NULL;
1872 u16 vsi_id = vfl->vsi_id;
1873 i40e_status aq_ret = 0;
1874 int i;
1875
1876 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1877 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1878 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1879 aq_ret = I40E_ERR_PARAM;
1880 goto error_param;
1881 }
1882
1883 for (i = 0; i < vfl->num_elements; i++) {
1884 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1885 aq_ret = I40E_ERR_PARAM;
1886 dev_err(&pf->pdev->dev,
1887 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1888 goto error_param;
1889 }
1890 }
1891 vsi = pf->vsi[vf->lan_vsi_idx];
1892 if (vsi->info.pvid) {
1893 aq_ret = I40E_ERR_PARAM;
1894 goto error_param;
1895 }
1896
1897 i40e_vlan_stripping_enable(vsi);
1898 for (i = 0; i < vfl->num_elements; i++) {
1899 /* add new VLAN filter */
1900 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1901
1902 if (ret)
1903 dev_err(&pf->pdev->dev,
1904 "Unable to add VLAN filter %d for VF %d, error %d\n",
1905 vfl->vlan_id[i], vf->vf_id, ret);
1906 }
1907
1908error_param:
1909 /* send the response to the VF */
1910 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1911}
1912
1913/**
1914 * i40e_vc_remove_vlan_msg
1915 * @vf: pointer to the VF info
1916 * @msg: pointer to the msg buffer
1917 * @msglen: msg length
1918 *
1919 * remove programmed guest vlan id
1920 **/
1921static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1922{
1923 struct i40e_virtchnl_vlan_filter_list *vfl =
1924 (struct i40e_virtchnl_vlan_filter_list *)msg;
1925 struct i40e_pf *pf = vf->pf;
1926 struct i40e_vsi *vsi = NULL;
1927 u16 vsi_id = vfl->vsi_id;
1928 i40e_status aq_ret = 0;
1929 int i;
1930
1931 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1932 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1933 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1934 aq_ret = I40E_ERR_PARAM;
1935 goto error_param;
1936 }
1937
1938 for (i = 0; i < vfl->num_elements; i++) {
1939 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1940 aq_ret = I40E_ERR_PARAM;
1941 goto error_param;
1942 }
1943 }
1944
1945 vsi = pf->vsi[vf->lan_vsi_idx];
1946 if (vsi->info.pvid) {
1947 aq_ret = I40E_ERR_PARAM;
1948 goto error_param;
1949 }
1950
1951 for (i = 0; i < vfl->num_elements; i++) {
1952 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1953
1954 if (ret)
1955 dev_err(&pf->pdev->dev,
1956 "Unable to delete VLAN filter %d for VF %d, error %d\n",
1957 vfl->vlan_id[i], vf->vf_id, ret);
1958 }
1959
1960error_param:
1961 /* send the response to the VF */
1962 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1963}
1964
1965/**
1966 * i40e_vc_iwarp_msg
1967 * @vf: pointer to the VF info
1968 * @msg: pointer to the msg buffer
1969 * @msglen: msg length
1970 *
1971 * called from the VF for the iwarp msgs
1972 **/
1973static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1974{
1975 struct i40e_pf *pf = vf->pf;
1976 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
1977 i40e_status aq_ret = 0;
1978
1979 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1980 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) {
1981 aq_ret = I40E_ERR_PARAM;
1982 goto error_param;
1983 }
1984
1985 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
1986 msg, msglen);
1987
1988error_param:
1989 /* send the response to the VF */
1990 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_IWARP,
1991 aq_ret);
1992}
1993
1994/**
1995 * i40e_vc_iwarp_qvmap_msg
1996 * @vf: pointer to the VF info
1997 * @msg: pointer to the msg buffer
1998 * @msglen: msg length
1999 * @config: config qvmap or release it
2000 *
2001 * called from the VF for the iwarp msgs
2002 **/
2003static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, u16 msglen,
2004 bool config)
2005{
2006 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info =
2007 (struct i40e_virtchnl_iwarp_qvlist_info *)msg;
2008 i40e_status aq_ret = 0;
2009
2010 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2011 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) {
2012 aq_ret = I40E_ERR_PARAM;
2013 goto error_param;
2014 }
2015
2016 if (config) {
2017 if (i40e_config_iwarp_qvlist(vf, qvlist_info))
2018 aq_ret = I40E_ERR_PARAM;
2019 } else {
2020 i40e_release_iwarp_qvlist(vf);
2021 }
2022
2023error_param:
2024 /* send the response to the VF */
2025 return i40e_vc_send_resp_to_vf(vf,
2026 config ? I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP :
2027 I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP,
2028 aq_ret);
2029}
2030
2031/**
2032 * i40e_vc_validate_vf_msg
2033 * @vf: pointer to the VF info
2034 * @msg: pointer to the msg buffer
2035 * @msglen: msg length
2036 * @msghndl: msg handle
2037 *
2038 * validate msg
2039 **/
2040static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
2041 u32 v_retval, u8 *msg, u16 msglen)
2042{
2043 bool err_msg_format = false;
2044 int valid_len;
2045
2046 /* Check if VF is disabled. */
2047 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
2048 return I40E_ERR_PARAM;
2049
2050 /* Validate message length. */
2051 switch (v_opcode) {
2052 case I40E_VIRTCHNL_OP_VERSION:
2053 valid_len = sizeof(struct i40e_virtchnl_version_info);
2054 break;
2055 case I40E_VIRTCHNL_OP_RESET_VF:
2056 valid_len = 0;
2057 break;
2058 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
2059 if (VF_IS_V11(vf))
2060 valid_len = sizeof(u32);
2061 else
2062 valid_len = 0;
2063 break;
2064 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
2065 valid_len = sizeof(struct i40e_virtchnl_txq_info);
2066 break;
2067 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
2068 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
2069 break;
2070 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
2071 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
2072 if (msglen >= valid_len) {
2073 struct i40e_virtchnl_vsi_queue_config_info *vqc =
2074 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
2075 valid_len += (vqc->num_queue_pairs *
2076 sizeof(struct
2077 i40e_virtchnl_queue_pair_info));
2078 if (vqc->num_queue_pairs == 0)
2079 err_msg_format = true;
2080 }
2081 break;
2082 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
2083 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
2084 if (msglen >= valid_len) {
2085 struct i40e_virtchnl_irq_map_info *vimi =
2086 (struct i40e_virtchnl_irq_map_info *)msg;
2087 valid_len += (vimi->num_vectors *
2088 sizeof(struct i40e_virtchnl_vector_map));
2089 if (vimi->num_vectors == 0)
2090 err_msg_format = true;
2091 }
2092 break;
2093 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
2094 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
2095 valid_len = sizeof(struct i40e_virtchnl_queue_select);
2096 break;
2097 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
2098 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
2099 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
2100 if (msglen >= valid_len) {
2101 struct i40e_virtchnl_ether_addr_list *veal =
2102 (struct i40e_virtchnl_ether_addr_list *)msg;
2103 valid_len += veal->num_elements *
2104 sizeof(struct i40e_virtchnl_ether_addr);
2105 if (veal->num_elements == 0)
2106 err_msg_format = true;
2107 }
2108 break;
2109 case I40E_VIRTCHNL_OP_ADD_VLAN:
2110 case I40E_VIRTCHNL_OP_DEL_VLAN:
2111 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
2112 if (msglen >= valid_len) {
2113 struct i40e_virtchnl_vlan_filter_list *vfl =
2114 (struct i40e_virtchnl_vlan_filter_list *)msg;
2115 valid_len += vfl->num_elements * sizeof(u16);
2116 if (vfl->num_elements == 0)
2117 err_msg_format = true;
2118 }
2119 break;
2120 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2121 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
2122 break;
2123 case I40E_VIRTCHNL_OP_GET_STATS:
2124 valid_len = sizeof(struct i40e_virtchnl_queue_select);
2125 break;
2126 case I40E_VIRTCHNL_OP_IWARP:
2127 /* These messages are opaque to us and will be validated in
2128 * the RDMA client code. We just need to check for nonzero
2129 * length. The firmware will enforce max length restrictions.
2130 */
2131 if (msglen)
2132 valid_len = msglen;
2133 else
2134 err_msg_format = true;
2135 break;
2136 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
2137 valid_len = 0;
2138 break;
2139 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
2140 valid_len = sizeof(struct i40e_virtchnl_iwarp_qvlist_info);
2141 if (msglen >= valid_len) {
2142 struct i40e_virtchnl_iwarp_qvlist_info *qv =
2143 (struct i40e_virtchnl_iwarp_qvlist_info *)msg;
2144 if (qv->num_vectors == 0) {
2145 err_msg_format = true;
2146 break;
2147 }
2148 valid_len += ((qv->num_vectors - 1) *
2149 sizeof(struct i40e_virtchnl_iwarp_qv_info));
2150 }
2151 break;
2152 /* These are always errors coming from the VF. */
2153 case I40E_VIRTCHNL_OP_EVENT:
2154 case I40E_VIRTCHNL_OP_UNKNOWN:
2155 default:
2156 return -EPERM;
2157 }
2158 /* few more checks */
2159 if ((valid_len != msglen) || (err_msg_format)) {
2160 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
2161 return -EINVAL;
2162 } else {
2163 return 0;
2164 }
2165}
2166
2167/**
2168 * i40e_vc_process_vf_msg
2169 * @pf: pointer to the PF structure
2170 * @vf_id: source VF id
2171 * @msg: pointer to the msg buffer
2172 * @msglen: msg length
2173 * @msghndl: msg handle
2174 *
2175 * called from the common aeq/arq handler to
2176 * process request from VF
2177 **/
2178int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
2179 u32 v_retval, u8 *msg, u16 msglen)
2180{
2181 struct i40e_hw *hw = &pf->hw;
2182 unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
2183 struct i40e_vf *vf;
2184 int ret;
2185
2186 pf->vf_aq_requests++;
2187 if (local_vf_id >= pf->num_alloc_vfs)
2188 return -EINVAL;
2189 vf = &(pf->vf[local_vf_id]);
2190 /* perform basic checks on the msg */
2191 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
2192
2193 if (ret) {
2194 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
2195 local_vf_id, v_opcode, msglen);
2196 return ret;
2197 }
2198
2199 switch (v_opcode) {
2200 case I40E_VIRTCHNL_OP_VERSION:
2201 ret = i40e_vc_get_version_msg(vf, msg);
2202 break;
2203 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
2204 ret = i40e_vc_get_vf_resources_msg(vf, msg);
2205 break;
2206 case I40E_VIRTCHNL_OP_RESET_VF:
2207 i40e_vc_reset_vf_msg(vf);
2208 ret = 0;
2209 break;
2210 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2211 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
2212 break;
2213 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
2214 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
2215 break;
2216 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
2217 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
2218 break;
2219 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
2220 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
2221 i40e_vc_notify_vf_link_state(vf);
2222 break;
2223 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
2224 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
2225 break;
2226 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
2227 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
2228 break;
2229 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
2230 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
2231 break;
2232 case I40E_VIRTCHNL_OP_ADD_VLAN:
2233 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
2234 break;
2235 case I40E_VIRTCHNL_OP_DEL_VLAN:
2236 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
2237 break;
2238 case I40E_VIRTCHNL_OP_GET_STATS:
2239 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
2240 break;
2241 case I40E_VIRTCHNL_OP_IWARP:
2242 ret = i40e_vc_iwarp_msg(vf, msg, msglen);
2243 break;
2244 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
2245 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, true);
2246 break;
2247 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
2248 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, false);
2249 break;
2250 case I40E_VIRTCHNL_OP_UNKNOWN:
2251 default:
2252 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
2253 v_opcode, local_vf_id);
2254 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
2255 I40E_ERR_NOT_IMPLEMENTED);
2256 break;
2257 }
2258
2259 return ret;
2260}
2261
2262/**
2263 * i40e_vc_process_vflr_event
2264 * @pf: pointer to the PF structure
2265 *
2266 * called from the vlfr irq handler to
2267 * free up VF resources and state variables
2268 **/
2269int i40e_vc_process_vflr_event(struct i40e_pf *pf)
2270{
2271 u32 reg, reg_idx, bit_idx, vf_id;
2272 struct i40e_hw *hw = &pf->hw;
2273 struct i40e_vf *vf;
2274
2275 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
2276 return 0;
2277
2278 /* Re-enable the VFLR interrupt cause here, before looking for which
2279 * VF got reset. Otherwise, if another VF gets a reset while the
2280 * first one is being processed, that interrupt will be lost, and
2281 * that VF will be stuck in reset forever.
2282 */
2283 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
2284 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
2285 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
2286 i40e_flush(hw);
2287
2288 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
2289 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
2290 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
2291 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
2292 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
2293 vf = &pf->vf[vf_id];
2294 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
2295 if (reg & BIT(bit_idx)) {
2296 /* clear the bit in GLGEN_VFLRSTAT */
2297 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
2298
2299 if (!test_bit(__I40E_DOWN, &pf->state))
2300 i40e_reset_vf(vf, true);
2301 }
2302 }
2303
2304 return 0;
2305}
2306
2307/**
2308 * i40e_ndo_set_vf_mac
2309 * @netdev: network interface device structure
2310 * @vf_id: VF identifier
2311 * @mac: mac address
2312 *
2313 * program VF mac address
2314 **/
2315int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
2316{
2317 struct i40e_netdev_priv *np = netdev_priv(netdev);
2318 struct i40e_vsi *vsi = np->vsi;
2319 struct i40e_pf *pf = vsi->back;
2320 struct i40e_mac_filter *f;
2321 struct i40e_vf *vf;
2322 int ret = 0;
2323
2324 /* validate the request */
2325 if (vf_id >= pf->num_alloc_vfs) {
2326 dev_err(&pf->pdev->dev,
2327 "Invalid VF Identifier %d\n", vf_id);
2328 ret = -EINVAL;
2329 goto error_param;
2330 }
2331
2332 vf = &(pf->vf[vf_id]);
2333 vsi = pf->vsi[vf->lan_vsi_idx];
2334 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2335 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2336 vf_id);
2337 ret = -EAGAIN;
2338 goto error_param;
2339 }
2340
2341 if (is_multicast_ether_addr(mac)) {
2342 dev_err(&pf->pdev->dev,
2343 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
2344 ret = -EINVAL;
2345 goto error_param;
2346 }
2347
2348 /* Lock once because below invoked function add/del_filter requires
2349 * mac_filter_list_lock to be held
2350 */
2351 spin_lock_bh(&vsi->mac_filter_list_lock);
2352
2353 /* delete the temporary mac address */
2354 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
2355 i40e_del_filter(vsi, vf->default_lan_addr.addr,
2356 vf->port_vlan_id ? vf->port_vlan_id : -1,
2357 true, false);
2358
2359 /* Delete all the filters for this VSI - we're going to kill it
2360 * anyway.
2361 */
2362 list_for_each_entry(f, &vsi->mac_filter_list, list)
2363 i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);
2364
2365 spin_unlock_bh(&vsi->mac_filter_list_lock);
2366
2367 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2368 /* program mac filter */
2369 if (i40e_sync_vsi_filters(vsi)) {
2370 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2371 ret = -EIO;
2372 goto error_param;
2373 }
2374 ether_addr_copy(vf->default_lan_addr.addr, mac);
2375 vf->pf_set_mac = true;
2376 /* Force the VF driver stop so it has to reload with new MAC address */
2377 i40e_vc_disable_vf(pf, vf);
2378 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2379
2380error_param:
2381 return ret;
2382}
2383
2384/**
2385 * i40e_ndo_set_vf_port_vlan
2386 * @netdev: network interface device structure
2387 * @vf_id: VF identifier
2388 * @vlan_id: mac address
2389 * @qos: priority setting
2390 *
2391 * program VF vlan id and/or qos
2392 **/
2393int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2394 int vf_id, u16 vlan_id, u8 qos)
2395{
2396 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
2397 struct i40e_netdev_priv *np = netdev_priv(netdev);
2398 struct i40e_pf *pf = np->vsi->back;
2399 bool is_vsi_in_vlan = false;
2400 struct i40e_vsi *vsi;
2401 struct i40e_vf *vf;
2402 int ret = 0;
2403
2404 /* validate the request */
2405 if (vf_id >= pf->num_alloc_vfs) {
2406 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2407 ret = -EINVAL;
2408 goto error_pvid;
2409 }
2410
2411 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2412 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2413 ret = -EINVAL;
2414 goto error_pvid;
2415 }
2416
2417 vf = &(pf->vf[vf_id]);
2418 vsi = pf->vsi[vf->lan_vsi_idx];
2419 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2420 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2421 vf_id);
2422 ret = -EAGAIN;
2423 goto error_pvid;
2424 }
2425
2426 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
2427 /* duplicate request, so just return success */
2428 goto error_pvid;
2429
2430 spin_lock_bh(&vsi->mac_filter_list_lock);
2431 is_vsi_in_vlan = i40e_is_vsi_in_vlan(vsi);
2432 spin_unlock_bh(&vsi->mac_filter_list_lock);
2433
2434 if (le16_to_cpu(vsi->info.pvid) == 0 && is_vsi_in_vlan) {
2435 dev_err(&pf->pdev->dev,
2436 "VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n",
2437 vf_id);
2438 /* Administrator Error - knock the VF offline until he does
2439 * the right thing by reconfiguring his network correctly
2440 * and then reloading the VF driver.
2441 */
2442 i40e_vc_disable_vf(pf, vf);
2443 /* During reset the VF got a new VSI, so refresh the pointer. */
2444 vsi = pf->vsi[vf->lan_vsi_idx];
2445 }
2446
2447 /* Check for condition where there was already a port VLAN ID
2448 * filter set and now it is being deleted by setting it to zero.
2449 * Additionally check for the condition where there was a port
2450 * VLAN but now there is a new and different port VLAN being set.
2451 * Before deleting all the old VLAN filters we must add new ones
2452 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2453 * MAC addresses deleted.
2454 */
2455 if ((!(vlan_id || qos) ||
2456 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
2457 vsi->info.pvid)
2458 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
2459
2460 if (vsi->info.pvid) {
2461 /* kill old VLAN */
2462 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2463 VLAN_VID_MASK));
2464 if (ret) {
2465 dev_info(&vsi->back->pdev->dev,
2466 "remove VLAN failed, ret=%d, aq_err=%d\n",
2467 ret, pf->hw.aq.asq_last_status);
2468 }
2469 }
2470 if (vlan_id || qos)
2471 ret = i40e_vsi_add_pvid(vsi, vlanprio);
2472 else
2473 i40e_vsi_remove_pvid(vsi);
2474
2475 if (vlan_id) {
2476 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2477 vlan_id, qos, vf_id);
2478
2479 /* add new VLAN filter */
2480 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2481 if (ret) {
2482 dev_info(&vsi->back->pdev->dev,
2483 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2484 vsi->back->hw.aq.asq_last_status);
2485 goto error_pvid;
2486 }
2487 /* Kill non-vlan MAC filters - ignore error return since
2488 * there might not be any non-vlan MAC filters.
2489 */
2490 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
2491 }
2492
2493 if (ret) {
2494 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2495 goto error_pvid;
2496 }
2497 /* The Port VLAN needs to be saved across resets the same as the
2498 * default LAN MAC address.
2499 */
2500 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2501 ret = 0;
2502
2503error_pvid:
2504 return ret;
2505}
2506
2507#define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
2508#define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
2509/**
2510 * i40e_ndo_set_vf_bw
2511 * @netdev: network interface device structure
2512 * @vf_id: VF identifier
2513 * @tx_rate: Tx rate
2514 *
2515 * configure VF Tx rate
2516 **/
2517int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
2518 int max_tx_rate)
2519{
2520 struct i40e_netdev_priv *np = netdev_priv(netdev);
2521 struct i40e_pf *pf = np->vsi->back;
2522 struct i40e_vsi *vsi;
2523 struct i40e_vf *vf;
2524 int speed = 0;
2525 int ret = 0;
2526
2527 /* validate the request */
2528 if (vf_id >= pf->num_alloc_vfs) {
2529 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
2530 ret = -EINVAL;
2531 goto error;
2532 }
2533
2534 if (min_tx_rate) {
2535 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
2536 min_tx_rate, vf_id);
2537 return -EINVAL;
2538 }
2539
2540 vf = &(pf->vf[vf_id]);
2541 vsi = pf->vsi[vf->lan_vsi_idx];
2542 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2543 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2544 vf_id);
2545 ret = -EAGAIN;
2546 goto error;
2547 }
2548
2549 switch (pf->hw.phy.link_info.link_speed) {
2550 case I40E_LINK_SPEED_40GB:
2551 speed = 40000;
2552 break;
2553 case I40E_LINK_SPEED_20GB:
2554 speed = 20000;
2555 break;
2556 case I40E_LINK_SPEED_10GB:
2557 speed = 10000;
2558 break;
2559 case I40E_LINK_SPEED_1GB:
2560 speed = 1000;
2561 break;
2562 default:
2563 break;
2564 }
2565
2566 if (max_tx_rate > speed) {
2567 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.",
2568 max_tx_rate, vf->vf_id);
2569 ret = -EINVAL;
2570 goto error;
2571 }
2572
2573 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
2574 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
2575 max_tx_rate = 50;
2576 }
2577
2578 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
2579 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
2580 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
2581 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
2582 if (ret) {
2583 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
2584 ret);
2585 ret = -EIO;
2586 goto error;
2587 }
2588 vf->tx_rate = max_tx_rate;
2589error:
2590 return ret;
2591}
2592
2593/**
2594 * i40e_ndo_get_vf_config
2595 * @netdev: network interface device structure
2596 * @vf_id: VF identifier
2597 * @ivi: VF configuration structure
2598 *
2599 * return VF configuration
2600 **/
2601int i40e_ndo_get_vf_config(struct net_device *netdev,
2602 int vf_id, struct ifla_vf_info *ivi)
2603{
2604 struct i40e_netdev_priv *np = netdev_priv(netdev);
2605 struct i40e_vsi *vsi = np->vsi;
2606 struct i40e_pf *pf = vsi->back;
2607 struct i40e_vf *vf;
2608 int ret = 0;
2609
2610 /* validate the request */
2611 if (vf_id >= pf->num_alloc_vfs) {
2612 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2613 ret = -EINVAL;
2614 goto error_param;
2615 }
2616
2617 vf = &(pf->vf[vf_id]);
2618 /* first vsi is always the LAN vsi */
2619 vsi = pf->vsi[vf->lan_vsi_idx];
2620 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2621 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2622 vf_id);
2623 ret = -EAGAIN;
2624 goto error_param;
2625 }
2626
2627 ivi->vf = vf_id;
2628
2629 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
2630
2631 ivi->max_tx_rate = vf->tx_rate;
2632 ivi->min_tx_rate = 0;
2633 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2634 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2635 I40E_VLAN_PRIORITY_SHIFT;
2636 if (vf->link_forced == false)
2637 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
2638 else if (vf->link_up == true)
2639 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
2640 else
2641 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
2642 ivi->spoofchk = vf->spoofchk;
2643 ret = 0;
2644
2645error_param:
2646 return ret;
2647}
2648
2649/**
2650 * i40e_ndo_set_vf_link_state
2651 * @netdev: network interface device structure
2652 * @vf_id: VF identifier
2653 * @link: required link state
2654 *
2655 * Set the link state of a specified VF, regardless of physical link state
2656 **/
2657int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
2658{
2659 struct i40e_netdev_priv *np = netdev_priv(netdev);
2660 struct i40e_pf *pf = np->vsi->back;
2661 struct i40e_virtchnl_pf_event pfe;
2662 struct i40e_hw *hw = &pf->hw;
2663 struct i40e_vf *vf;
2664 int abs_vf_id;
2665 int ret = 0;
2666
2667 /* validate the request */
2668 if (vf_id >= pf->num_alloc_vfs) {
2669 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2670 ret = -EINVAL;
2671 goto error_out;
2672 }
2673
2674 vf = &pf->vf[vf_id];
2675 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
2676
2677 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
2678 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
2679
2680 switch (link) {
2681 case IFLA_VF_LINK_STATE_AUTO:
2682 vf->link_forced = false;
2683 pfe.event_data.link_event.link_status =
2684 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
2685 pfe.event_data.link_event.link_speed =
2686 pf->hw.phy.link_info.link_speed;
2687 break;
2688 case IFLA_VF_LINK_STATE_ENABLE:
2689 vf->link_forced = true;
2690 vf->link_up = true;
2691 pfe.event_data.link_event.link_status = true;
2692 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
2693 break;
2694 case IFLA_VF_LINK_STATE_DISABLE:
2695 vf->link_forced = true;
2696 vf->link_up = false;
2697 pfe.event_data.link_event.link_status = false;
2698 pfe.event_data.link_event.link_speed = 0;
2699 break;
2700 default:
2701 ret = -EINVAL;
2702 goto error_out;
2703 }
2704 /* Notify the VF of its new link state */
2705 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
2706 0, (u8 *)&pfe, sizeof(pfe), NULL);
2707
2708error_out:
2709 return ret;
2710}
2711
2712/**
2713 * i40e_ndo_set_vf_spoofchk
2714 * @netdev: network interface device structure
2715 * @vf_id: VF identifier
2716 * @enable: flag to enable or disable feature
2717 *
2718 * Enable or disable VF spoof checking
2719 **/
2720int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
2721{
2722 struct i40e_netdev_priv *np = netdev_priv(netdev);
2723 struct i40e_vsi *vsi = np->vsi;
2724 struct i40e_pf *pf = vsi->back;
2725 struct i40e_vsi_context ctxt;
2726 struct i40e_hw *hw = &pf->hw;
2727 struct i40e_vf *vf;
2728 int ret = 0;
2729
2730 /* validate the request */
2731 if (vf_id >= pf->num_alloc_vfs) {
2732 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2733 ret = -EINVAL;
2734 goto out;
2735 }
2736
2737 vf = &(pf->vf[vf_id]);
2738 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2739 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2740 vf_id);
2741 ret = -EAGAIN;
2742 goto out;
2743 }
2744
2745 if (enable == vf->spoofchk)
2746 goto out;
2747
2748 vf->spoofchk = enable;
2749 memset(&ctxt, 0, sizeof(ctxt));
2750 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
2751 ctxt.pf_num = pf->hw.pf_id;
2752 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
2753 if (enable)
2754 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
2755 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
2756 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
2757 if (ret) {
2758 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
2759 ret);
2760 ret = -EIO;
2761 }
2762out:
2763 return ret;
2764}
1/*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2014 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/***********************misc routines*****************************/
30
31/**
32 * i40e_vc_isvalid_vsi_id
33 * @vf: pointer to the vf info
34 * @vsi_id: vf relative vsi id
35 *
36 * check for the valid vsi id
37 **/
38static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u8 vsi_id)
39{
40 struct i40e_pf *pf = vf->pf;
41
42 return pf->vsi[vsi_id]->vf_id == vf->vf_id;
43}
44
45/**
46 * i40e_vc_isvalid_queue_id
47 * @vf: pointer to the vf info
48 * @vsi_id: vsi id
49 * @qid: vsi relative queue id
50 *
51 * check for the valid queue id
52 **/
53static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u8 vsi_id,
54 u8 qid)
55{
56 struct i40e_pf *pf = vf->pf;
57
58 return qid < pf->vsi[vsi_id]->num_queue_pairs;
59}
60
61/**
62 * i40e_vc_isvalid_vector_id
63 * @vf: pointer to the vf info
64 * @vector_id: vf relative vector id
65 *
66 * check for the valid vector id
67 **/
68static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
69{
70 struct i40e_pf *pf = vf->pf;
71
72 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
73}
74
75/***********************vf resource mgmt routines*****************/
76
77/**
78 * i40e_vc_get_pf_queue_id
79 * @vf: pointer to the vf info
80 * @vsi_idx: index of VSI in PF struct
81 * @vsi_queue_id: vsi relative queue id
82 *
83 * return pf relative queue id
84 **/
85static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u8 vsi_idx,
86 u8 vsi_queue_id)
87{
88 struct i40e_pf *pf = vf->pf;
89 struct i40e_vsi *vsi = pf->vsi[vsi_idx];
90 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
91
92 if (le16_to_cpu(vsi->info.mapping_flags) &
93 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
94 pf_queue_id =
95 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
96 else
97 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
98 vsi_queue_id;
99
100 return pf_queue_id;
101}
102
103/**
104 * i40e_config_irq_link_list
105 * @vf: pointer to the vf info
106 * @vsi_idx: index of VSI in PF struct
107 * @vecmap: irq map info
108 *
109 * configure irq link list from the map
110 **/
111static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_idx,
112 struct i40e_virtchnl_vector_map *vecmap)
113{
114 unsigned long linklistmap = 0, tempmap;
115 struct i40e_pf *pf = vf->pf;
116 struct i40e_hw *hw = &pf->hw;
117 u16 vsi_queue_id, pf_queue_id;
118 enum i40e_queue_type qtype;
119 u16 next_q, vector_id;
120 u32 reg, reg_idx;
121 u16 itr_idx = 0;
122
123 vector_id = vecmap->vector_id;
124 /* setup the head */
125 if (0 == vector_id)
126 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
127 else
128 reg_idx = I40E_VPINT_LNKLSTN(
129 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
130 (vector_id - 1));
131
132 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
133 /* Special case - No queues mapped on this vector */
134 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
135 goto irq_list_done;
136 }
137 tempmap = vecmap->rxq_map;
138 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
139 linklistmap |= (1 <<
140 (I40E_VIRTCHNL_SUPPORTED_QTYPES *
141 vsi_queue_id));
142 }
143
144 tempmap = vecmap->txq_map;
145 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
146 linklistmap |= (1 <<
147 (I40E_VIRTCHNL_SUPPORTED_QTYPES * vsi_queue_id
148 + 1));
149 }
150
151 next_q = find_first_bit(&linklistmap,
152 (I40E_MAX_VSI_QP *
153 I40E_VIRTCHNL_SUPPORTED_QTYPES));
154 vsi_queue_id = next_q/I40E_VIRTCHNL_SUPPORTED_QTYPES;
155 qtype = next_q%I40E_VIRTCHNL_SUPPORTED_QTYPES;
156 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
157 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
158
159 wr32(hw, reg_idx, reg);
160
161 while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
162 switch (qtype) {
163 case I40E_QUEUE_TYPE_RX:
164 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
165 itr_idx = vecmap->rxitr_idx;
166 break;
167 case I40E_QUEUE_TYPE_TX:
168 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
169 itr_idx = vecmap->txitr_idx;
170 break;
171 default:
172 break;
173 }
174
175 next_q = find_next_bit(&linklistmap,
176 (I40E_MAX_VSI_QP *
177 I40E_VIRTCHNL_SUPPORTED_QTYPES),
178 next_q + 1);
179 if (next_q <
180 (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
181 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
182 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
183 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx,
184 vsi_queue_id);
185 } else {
186 pf_queue_id = I40E_QUEUE_END_OF_LIST;
187 qtype = 0;
188 }
189
190 /* format for the RQCTL & TQCTL regs is same */
191 reg = (vector_id) |
192 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
193 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
194 (1 << I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
195 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
196 wr32(hw, reg_idx, reg);
197 }
198
199irq_list_done:
200 i40e_flush(hw);
201}
202
203/**
204 * i40e_config_vsi_tx_queue
205 * @vf: pointer to the vf info
206 * @vsi_idx: index of VSI in PF struct
207 * @vsi_queue_id: vsi relative queue index
208 * @info: config. info
209 *
210 * configure tx queue
211 **/
212static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_idx,
213 u16 vsi_queue_id,
214 struct i40e_virtchnl_txq_info *info)
215{
216 struct i40e_pf *pf = vf->pf;
217 struct i40e_hw *hw = &pf->hw;
218 struct i40e_hmc_obj_txq tx_ctx;
219 u16 pf_queue_id;
220 u32 qtx_ctl;
221 int ret = 0;
222
223 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
224
225 /* clear the context structure first */
226 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
227
228 /* only set the required fields */
229 tx_ctx.base = info->dma_ring_addr / 128;
230 tx_ctx.qlen = info->ring_len;
231 tx_ctx.rdylist = le16_to_cpu(pf->vsi[vsi_idx]->info.qs_handle[0]);
232 tx_ctx.rdylist_act = 0;
233 tx_ctx.head_wb_ena = 1;
234 tx_ctx.head_wb_addr = info->dma_ring_addr +
235 (info->ring_len * sizeof(struct i40e_tx_desc));
236
237 /* clear the context in the HMC */
238 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
239 if (ret) {
240 dev_err(&pf->pdev->dev,
241 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
242 pf_queue_id, ret);
243 ret = -ENOENT;
244 goto error_context;
245 }
246
247 /* set the context in the HMC */
248 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
249 if (ret) {
250 dev_err(&pf->pdev->dev,
251 "Failed to set VF LAN Tx queue context %d error: %d\n",
252 pf_queue_id, ret);
253 ret = -ENOENT;
254 goto error_context;
255 }
256
257 /* associate this queue with the PCI VF function */
258 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
259 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
260 & I40E_QTX_CTL_PF_INDX_MASK);
261 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
262 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
263 & I40E_QTX_CTL_VFVM_INDX_MASK);
264 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
265 i40e_flush(hw);
266
267error_context:
268 return ret;
269}
270
271/**
272 * i40e_config_vsi_rx_queue
273 * @vf: pointer to the vf info
274 * @vsi_idx: index of VSI in PF struct
275 * @vsi_queue_id: vsi relative queue index
276 * @info: config. info
277 *
278 * configure rx queue
279 **/
280static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_idx,
281 u16 vsi_queue_id,
282 struct i40e_virtchnl_rxq_info *info)
283{
284 struct i40e_pf *pf = vf->pf;
285 struct i40e_hw *hw = &pf->hw;
286 struct i40e_hmc_obj_rxq rx_ctx;
287 u16 pf_queue_id;
288 int ret = 0;
289
290 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
291
292 /* clear the context structure first */
293 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
294
295 /* only set the required fields */
296 rx_ctx.base = info->dma_ring_addr / 128;
297 rx_ctx.qlen = info->ring_len;
298
299 if (info->splithdr_enabled) {
300 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
301 I40E_RX_SPLIT_IP |
302 I40E_RX_SPLIT_TCP_UDP |
303 I40E_RX_SPLIT_SCTP;
304 /* header length validation */
305 if (info->hdr_size > ((2 * 1024) - 64)) {
306 ret = -EINVAL;
307 goto error_param;
308 }
309 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
310
311 /* set splitalways mode 10b */
312 rx_ctx.dtype = 0x2;
313 }
314
315 /* databuffer length validation */
316 if (info->databuffer_size > ((16 * 1024) - 128)) {
317 ret = -EINVAL;
318 goto error_param;
319 }
320 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
321
322 /* max pkt. length validation */
323 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
324 ret = -EINVAL;
325 goto error_param;
326 }
327 rx_ctx.rxmax = info->max_pkt_size;
328
329 /* enable 32bytes desc always */
330 rx_ctx.dsize = 1;
331
332 /* default values */
333 rx_ctx.tphrdesc_ena = 1;
334 rx_ctx.tphwdesc_ena = 1;
335 rx_ctx.tphdata_ena = 1;
336 rx_ctx.tphhead_ena = 1;
337 rx_ctx.lrxqthresh = 2;
338 rx_ctx.crcstrip = 1;
339
340 /* clear the context in the HMC */
341 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
342 if (ret) {
343 dev_err(&pf->pdev->dev,
344 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
345 pf_queue_id, ret);
346 ret = -ENOENT;
347 goto error_param;
348 }
349
350 /* set the context in the HMC */
351 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
352 if (ret) {
353 dev_err(&pf->pdev->dev,
354 "Failed to set VF LAN Rx queue context %d error: %d\n",
355 pf_queue_id, ret);
356 ret = -ENOENT;
357 goto error_param;
358 }
359
360error_param:
361 return ret;
362}
363
364/**
365 * i40e_alloc_vsi_res
366 * @vf: pointer to the vf info
367 * @type: type of VSI to allocate
368 *
369 * alloc vf vsi context & resources
370 **/
371static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
372{
373 struct i40e_mac_filter *f = NULL;
374 struct i40e_pf *pf = vf->pf;
375 struct i40e_vsi *vsi;
376 int ret = 0;
377
378 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
379
380 if (!vsi) {
381 dev_err(&pf->pdev->dev,
382 "add vsi failed for vf %d, aq_err %d\n",
383 vf->vf_id, pf->hw.aq.asq_last_status);
384 ret = -ENOENT;
385 goto error_alloc_vsi_res;
386 }
387 if (type == I40E_VSI_SRIOV) {
388 u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
389 vf->lan_vsi_index = vsi->idx;
390 vf->lan_vsi_id = vsi->id;
391 dev_info(&pf->pdev->dev,
392 "VF %d assigned LAN VSI index %d, VSI id %d\n",
393 vf->vf_id, vsi->idx, vsi->id);
394 /* If the port VLAN has been configured and then the
395 * VF driver was removed then the VSI port VLAN
396 * configuration was destroyed. Check if there is
397 * a port VLAN and restore the VSI configuration if
398 * needed.
399 */
400 if (vf->port_vlan_id)
401 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
402 f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
403 vf->port_vlan_id, true, false);
404 if (!f)
405 dev_info(&pf->pdev->dev,
406 "Could not allocate VF MAC addr\n");
407 f = i40e_add_filter(vsi, brdcast, vf->port_vlan_id,
408 true, false);
409 if (!f)
410 dev_info(&pf->pdev->dev,
411 "Could not allocate VF broadcast filter\n");
412 }
413
414 /* program mac filter */
415 ret = i40e_sync_vsi_filters(vsi);
416 if (ret)
417 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
418
419error_alloc_vsi_res:
420 return ret;
421}
422
423/**
424 * i40e_enable_vf_mappings
425 * @vf: pointer to the vf info
426 *
427 * enable vf mappings
428 **/
429static void i40e_enable_vf_mappings(struct i40e_vf *vf)
430{
431 struct i40e_pf *pf = vf->pf;
432 struct i40e_hw *hw = &pf->hw;
433 u32 reg, total_queue_pairs = 0;
434 int j;
435
436 /* Tell the hardware we're using noncontiguous mapping. HW requires
437 * that VF queues be mapped using this method, even when they are
438 * contiguous in real life
439 */
440 wr32(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
441 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
442
443 /* enable VF vplan_qtable mappings */
444 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
445 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
446
447 /* map PF queues to VF queues */
448 for (j = 0; j < pf->vsi[vf->lan_vsi_index]->num_queue_pairs; j++) {
449 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index, j);
450 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
451 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
452 total_queue_pairs++;
453 }
454
455 /* map PF queues to VSI */
456 for (j = 0; j < 7; j++) {
457 if (j * 2 >= pf->vsi[vf->lan_vsi_index]->num_queue_pairs) {
458 reg = 0x07FF07FF; /* unused */
459 } else {
460 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index,
461 j * 2);
462 reg = qid;
463 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index,
464 (j * 2) + 1);
465 reg |= qid << 16;
466 }
467 wr32(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), reg);
468 }
469
470 i40e_flush(hw);
471}
472
473/**
474 * i40e_disable_vf_mappings
475 * @vf: pointer to the vf info
476 *
477 * disable vf mappings
478 **/
479static void i40e_disable_vf_mappings(struct i40e_vf *vf)
480{
481 struct i40e_pf *pf = vf->pf;
482 struct i40e_hw *hw = &pf->hw;
483 int i;
484
485 /* disable qp mappings */
486 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
487 for (i = 0; i < I40E_MAX_VSI_QP; i++)
488 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
489 I40E_QUEUE_END_OF_LIST);
490 i40e_flush(hw);
491}
492
493/**
494 * i40e_free_vf_res
495 * @vf: pointer to the vf info
496 *
497 * free vf resources
498 **/
499static void i40e_free_vf_res(struct i40e_vf *vf)
500{
501 struct i40e_pf *pf = vf->pf;
502 struct i40e_hw *hw = &pf->hw;
503 u32 reg_idx, reg;
504 int i, msix_vf;
505
506 /* free vsi & disconnect it from the parent uplink */
507 if (vf->lan_vsi_index) {
508 i40e_vsi_release(pf->vsi[vf->lan_vsi_index]);
509 vf->lan_vsi_index = 0;
510 vf->lan_vsi_id = 0;
511 }
512 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
513
514 /* disable interrupts so the VF starts in a known state */
515 for (i = 0; i < msix_vf; i++) {
516 /* format is same for both registers */
517 if (0 == i)
518 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
519 else
520 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
521 (vf->vf_id))
522 + (i - 1));
523 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
524 i40e_flush(hw);
525 }
526
527 /* clear the irq settings */
528 for (i = 0; i < msix_vf; i++) {
529 /* format is same for both registers */
530 if (0 == i)
531 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
532 else
533 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
534 (vf->vf_id))
535 + (i - 1));
536 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
537 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
538 wr32(hw, reg_idx, reg);
539 i40e_flush(hw);
540 }
541 /* reset some of the state varibles keeping
542 * track of the resources
543 */
544 vf->num_queue_pairs = 0;
545 vf->vf_states = 0;
546}
547
548/**
549 * i40e_alloc_vf_res
550 * @vf: pointer to the vf info
551 *
552 * allocate vf resources
553 **/
554static int i40e_alloc_vf_res(struct i40e_vf *vf)
555{
556 struct i40e_pf *pf = vf->pf;
557 int total_queue_pairs = 0;
558 int ret;
559
560 /* allocate hw vsi context & associated resources */
561 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
562 if (ret)
563 goto error_alloc;
564 total_queue_pairs += pf->vsi[vf->lan_vsi_index]->num_queue_pairs;
565 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
566
567 /* store the total qps number for the runtime
568 * vf req validation
569 */
570 vf->num_queue_pairs = total_queue_pairs;
571
572 /* vf is now completely initialized */
573 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
574
575error_alloc:
576 if (ret)
577 i40e_free_vf_res(vf);
578
579 return ret;
580}
581
582#define VF_DEVICE_STATUS 0xAA
583#define VF_TRANS_PENDING_MASK 0x20
584/**
585 * i40e_quiesce_vf_pci
586 * @vf: pointer to the vf structure
587 *
588 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
589 * if the transactions never clear.
590 **/
591static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
592{
593 struct i40e_pf *pf = vf->pf;
594 struct i40e_hw *hw = &pf->hw;
595 int vf_abs_id, i;
596 u32 reg;
597
598 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
599
600 wr32(hw, I40E_PF_PCI_CIAA,
601 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
602 for (i = 0; i < 100; i++) {
603 reg = rd32(hw, I40E_PF_PCI_CIAD);
604 if ((reg & VF_TRANS_PENDING_MASK) == 0)
605 return 0;
606 udelay(1);
607 }
608 return -EIO;
609}
610
611/**
612 * i40e_reset_vf
613 * @vf: pointer to the vf structure
614 * @flr: VFLR was issued or not
615 *
616 * reset the vf
617 **/
618void i40e_reset_vf(struct i40e_vf *vf, bool flr)
619{
620 struct i40e_pf *pf = vf->pf;
621 struct i40e_hw *hw = &pf->hw;
622 bool rsd = false;
623 int i;
624 u32 reg;
625
626 /* warn the VF */
627 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
628
629 /* In the case of a VFLR, the HW has already reset the VF and we
630 * just need to clean up, so don't hit the VFRTRIG register.
631 */
632 if (!flr) {
633 /* reset vf using VPGEN_VFRTRIG reg */
634 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
635 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
636 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
637 i40e_flush(hw);
638 }
639
640 if (i40e_quiesce_vf_pci(vf))
641 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
642 vf->vf_id);
643
644 /* poll VPGEN_VFRSTAT reg to make sure
645 * that reset is complete
646 */
647 for (i = 0; i < 100; i++) {
648 /* vf reset requires driver to first reset the
649 * vf & than poll the status register to make sure
650 * that the requested op was completed
651 * successfully
652 */
653 udelay(10);
654 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
655 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
656 rsd = true;
657 break;
658 }
659 }
660
661 if (!rsd)
662 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
663 vf->vf_id);
664 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
665 /* clear the reset bit in the VPGEN_VFRTRIG reg */
666 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
667 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
668 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
669
670 /* On initial reset, we won't have any queues */
671 if (vf->lan_vsi_index == 0)
672 goto complete_reset;
673
674 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_index], false);
675complete_reset:
676 /* reallocate vf resources to reset the VSI state */
677 i40e_free_vf_res(vf);
678 i40e_alloc_vf_res(vf);
679 i40e_enable_vf_mappings(vf);
680 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
681
682 /* tell the VF the reset is done */
683 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
684 i40e_flush(hw);
685}
686
687/**
688 * i40e_vfs_are_assigned
689 * @pf: pointer to the pf structure
690 *
691 * Determine if any VFs are assigned to VMs
692 **/
693static bool i40e_vfs_are_assigned(struct i40e_pf *pf)
694{
695 struct pci_dev *pdev = pf->pdev;
696 struct pci_dev *vfdev;
697
698 /* loop through all the VFs to see if we own any that are assigned */
699 vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, I40E_DEV_ID_VF , NULL);
700 while (vfdev) {
701 /* if we don't own it we don't care */
702 if (vfdev->is_virtfn && pci_physfn(vfdev) == pdev) {
703 /* if it is assigned we cannot release it */
704 if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
705 return true;
706 }
707
708 vfdev = pci_get_device(PCI_VENDOR_ID_INTEL,
709 I40E_DEV_ID_VF,
710 vfdev);
711 }
712
713 return false;
714}
715#ifdef CONFIG_PCI_IOV
716
717/**
718 * i40e_enable_pf_switch_lb
719 * @pf: pointer to the pf structure
720 *
721 * enable switch loop back or die - no point in a return value
722 **/
723static void i40e_enable_pf_switch_lb(struct i40e_pf *pf)
724{
725 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
726 struct i40e_vsi_context ctxt;
727 int aq_ret;
728
729 ctxt.seid = pf->main_vsi_seid;
730 ctxt.pf_num = pf->hw.pf_id;
731 ctxt.vf_num = 0;
732 aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
733 if (aq_ret) {
734 dev_info(&pf->pdev->dev,
735 "%s couldn't get pf vsi config, err %d, aq_err %d\n",
736 __func__, aq_ret, pf->hw.aq.asq_last_status);
737 return;
738 }
739 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
740 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
741 ctxt.info.switch_id |= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
742
743 aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
744 if (aq_ret) {
745 dev_info(&pf->pdev->dev,
746 "%s: update vsi switch failed, aq_err=%d\n",
747 __func__, vsi->back->hw.aq.asq_last_status);
748 }
749}
750#endif
751
752/**
753 * i40e_disable_pf_switch_lb
754 * @pf: pointer to the pf structure
755 *
756 * disable switch loop back or die - no point in a return value
757 **/
758static void i40e_disable_pf_switch_lb(struct i40e_pf *pf)
759{
760 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
761 struct i40e_vsi_context ctxt;
762 int aq_ret;
763
764 ctxt.seid = pf->main_vsi_seid;
765 ctxt.pf_num = pf->hw.pf_id;
766 ctxt.vf_num = 0;
767 aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
768 if (aq_ret) {
769 dev_info(&pf->pdev->dev,
770 "%s couldn't get pf vsi config, err %d, aq_err %d\n",
771 __func__, aq_ret, pf->hw.aq.asq_last_status);
772 return;
773 }
774 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
775 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
776 ctxt.info.switch_id &= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
777
778 aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
779 if (aq_ret) {
780 dev_info(&pf->pdev->dev,
781 "%s: update vsi switch failed, aq_err=%d\n",
782 __func__, vsi->back->hw.aq.asq_last_status);
783 }
784}
785
786/**
787 * i40e_free_vfs
788 * @pf: pointer to the pf structure
789 *
790 * free vf resources
791 **/
792void i40e_free_vfs(struct i40e_pf *pf)
793{
794 struct i40e_hw *hw = &pf->hw;
795 u32 reg_idx, bit_idx;
796 int i, tmp, vf_id;
797
798 if (!pf->vf)
799 return;
800
801 /* Disable interrupt 0 so we don't try to handle the VFLR. */
802 i40e_irq_dynamic_disable_icr0(pf);
803
804 mdelay(10); /* let any messages in transit get finished up */
805 /* free up vf resources */
806 tmp = pf->num_alloc_vfs;
807 pf->num_alloc_vfs = 0;
808 for (i = 0; i < tmp; i++) {
809 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
810 i40e_free_vf_res(&pf->vf[i]);
811 /* disable qp mappings */
812 i40e_disable_vf_mappings(&pf->vf[i]);
813 }
814
815 kfree(pf->vf);
816 pf->vf = NULL;
817
818 if (!i40e_vfs_are_assigned(pf)) {
819 pci_disable_sriov(pf->pdev);
820 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
821 * work correctly when SR-IOV gets re-enabled.
822 */
823 for (vf_id = 0; vf_id < tmp; vf_id++) {
824 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
825 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
826 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
827 }
828 i40e_disable_pf_switch_lb(pf);
829 } else {
830 dev_warn(&pf->pdev->dev,
831 "unable to disable SR-IOV because VFs are assigned.\n");
832 }
833
834 /* Re-enable interrupt 0. */
835 i40e_irq_dynamic_enable_icr0(pf);
836}
837
838#ifdef CONFIG_PCI_IOV
839/**
840 * i40e_alloc_vfs
841 * @pf: pointer to the pf structure
842 * @num_alloc_vfs: number of vfs to allocate
843 *
844 * allocate vf resources
845 **/
846int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
847{
848 struct i40e_vf *vfs;
849 int i, ret = 0;
850
851 /* Disable interrupt 0 so we don't try to handle the VFLR. */
852 i40e_irq_dynamic_disable_icr0(pf);
853
854 /* Check to see if we're just allocating resources for extant VFs */
855 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
856 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
857 if (ret) {
858 dev_err(&pf->pdev->dev,
859 "Failed to enable SR-IOV, error %d.\n", ret);
860 pf->num_alloc_vfs = 0;
861 goto err_iov;
862 }
863 }
864 /* allocate memory */
865 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
866 if (!vfs) {
867 ret = -ENOMEM;
868 goto err_alloc;
869 }
870
871 /* apply default profile */
872 for (i = 0; i < num_alloc_vfs; i++) {
873 vfs[i].pf = pf;
874 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
875 vfs[i].vf_id = i;
876
877 /* assign default capabilities */
878 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
879 /* vf resources get allocated during reset */
880 i40e_reset_vf(&vfs[i], false);
881
882 /* enable vf vplan_qtable mappings */
883 i40e_enable_vf_mappings(&vfs[i]);
884 }
885 pf->vf = vfs;
886 pf->num_alloc_vfs = num_alloc_vfs;
887
888 i40e_enable_pf_switch_lb(pf);
889err_alloc:
890 if (ret)
891 i40e_free_vfs(pf);
892err_iov:
893 /* Re-enable interrupt 0. */
894 i40e_irq_dynamic_enable_icr0(pf);
895 return ret;
896}
897
898#endif
899/**
900 * i40e_pci_sriov_enable
901 * @pdev: pointer to a pci_dev structure
902 * @num_vfs: number of vfs to allocate
903 *
904 * Enable or change the number of VFs
905 **/
906static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
907{
908#ifdef CONFIG_PCI_IOV
909 struct i40e_pf *pf = pci_get_drvdata(pdev);
910 int pre_existing_vfs = pci_num_vf(pdev);
911 int err = 0;
912
913 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
914 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
915 i40e_free_vfs(pf);
916 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
917 goto out;
918
919 if (num_vfs > pf->num_req_vfs) {
920 err = -EPERM;
921 goto err_out;
922 }
923
924 err = i40e_alloc_vfs(pf, num_vfs);
925 if (err) {
926 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
927 goto err_out;
928 }
929
930out:
931 return num_vfs;
932
933err_out:
934 return err;
935#endif
936 return 0;
937}
938
939/**
940 * i40e_pci_sriov_configure
941 * @pdev: pointer to a pci_dev structure
942 * @num_vfs: number of vfs to allocate
943 *
944 * Enable or change the number of VFs. Called when the user updates the number
945 * of VFs in sysfs.
946 **/
947int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
948{
949 struct i40e_pf *pf = pci_get_drvdata(pdev);
950
951 if (num_vfs)
952 return i40e_pci_sriov_enable(pdev, num_vfs);
953
954 i40e_free_vfs(pf);
955 return 0;
956}
957
958/***********************virtual channel routines******************/
959
960/**
961 * i40e_vc_send_msg_to_vf
962 * @vf: pointer to the vf info
963 * @v_opcode: virtual channel opcode
964 * @v_retval: virtual channel return value
965 * @msg: pointer to the msg buffer
966 * @msglen: msg length
967 *
968 * send msg to vf
969 **/
970static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
971 u32 v_retval, u8 *msg, u16 msglen)
972{
973 struct i40e_pf *pf = vf->pf;
974 struct i40e_hw *hw = &pf->hw;
975 int true_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
976 i40e_status aq_ret;
977
978 /* single place to detect unsuccessful return values */
979 if (v_retval) {
980 vf->num_invalid_msgs++;
981 dev_err(&pf->pdev->dev, "Failed opcode %d Error: %d\n",
982 v_opcode, v_retval);
983 if (vf->num_invalid_msgs >
984 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
985 dev_err(&pf->pdev->dev,
986 "Number of invalid messages exceeded for VF %d\n",
987 vf->vf_id);
988 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
989 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
990 }
991 } else {
992 vf->num_valid_msgs++;
993 }
994
995 aq_ret = i40e_aq_send_msg_to_vf(hw, true_vf_id, v_opcode, v_retval,
996 msg, msglen, NULL);
997 if (aq_ret) {
998 dev_err(&pf->pdev->dev,
999 "Unable to send the message to VF %d aq_err %d\n",
1000 vf->vf_id, pf->hw.aq.asq_last_status);
1001 return -EIO;
1002 }
1003
1004 return 0;
1005}
1006
1007/**
1008 * i40e_vc_send_resp_to_vf
1009 * @vf: pointer to the vf info
1010 * @opcode: operation code
1011 * @retval: return value
1012 *
1013 * send resp msg to vf
1014 **/
1015static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1016 enum i40e_virtchnl_ops opcode,
1017 i40e_status retval)
1018{
1019 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1020}
1021
1022/**
1023 * i40e_vc_get_version_msg
1024 * @vf: pointer to the vf info
1025 *
1026 * called from the vf to request the API version used by the PF
1027 **/
1028static int i40e_vc_get_version_msg(struct i40e_vf *vf)
1029{
1030 struct i40e_virtchnl_version_info info = {
1031 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1032 };
1033
1034 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1035 I40E_SUCCESS, (u8 *)&info,
1036 sizeof(struct
1037 i40e_virtchnl_version_info));
1038}
1039
1040/**
1041 * i40e_vc_get_vf_resources_msg
1042 * @vf: pointer to the vf info
1043 * @msg: pointer to the msg buffer
1044 * @msglen: msg length
1045 *
1046 * called from the vf to request its resources
1047 **/
1048static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf)
1049{
1050 struct i40e_virtchnl_vf_resource *vfres = NULL;
1051 struct i40e_pf *pf = vf->pf;
1052 i40e_status aq_ret = 0;
1053 struct i40e_vsi *vsi;
1054 int i = 0, len = 0;
1055 int num_vsis = 1;
1056 int ret;
1057
1058 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1059 aq_ret = I40E_ERR_PARAM;
1060 goto err;
1061 }
1062
1063 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1064 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1065
1066 vfres = kzalloc(len, GFP_KERNEL);
1067 if (!vfres) {
1068 aq_ret = I40E_ERR_NO_MEMORY;
1069 len = 0;
1070 goto err;
1071 }
1072
1073 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1074 vsi = pf->vsi[vf->lan_vsi_index];
1075 if (!vsi->info.pvid)
1076 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1077
1078 vfres->num_vsis = num_vsis;
1079 vfres->num_queue_pairs = vf->num_queue_pairs;
1080 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1081 if (vf->lan_vsi_index) {
1082 vfres->vsi_res[i].vsi_id = vf->lan_vsi_index;
1083 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1084 vfres->vsi_res[i].num_queue_pairs =
1085 pf->vsi[vf->lan_vsi_index]->num_queue_pairs;
1086 memcpy(vfres->vsi_res[i].default_mac_addr,
1087 vf->default_lan_addr.addr, ETH_ALEN);
1088 i++;
1089 }
1090 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1091
1092err:
1093 /* send the response back to the vf */
1094 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1095 aq_ret, (u8 *)vfres, len);
1096
1097 kfree(vfres);
1098 return ret;
1099}
1100
1101/**
1102 * i40e_vc_reset_vf_msg
1103 * @vf: pointer to the vf info
1104 * @msg: pointer to the msg buffer
1105 * @msglen: msg length
1106 *
1107 * called from the vf to reset itself,
1108 * unlike other virtchnl messages, pf driver
1109 * doesn't send the response back to the vf
1110 **/
1111static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1112{
1113 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1114 i40e_reset_vf(vf, false);
1115}
1116
1117/**
1118 * i40e_vc_config_promiscuous_mode_msg
1119 * @vf: pointer to the vf info
1120 * @msg: pointer to the msg buffer
1121 * @msglen: msg length
1122 *
1123 * called from the vf to configure the promiscuous mode of
1124 * vf vsis
1125 **/
1126static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1127 u8 *msg, u16 msglen)
1128{
1129 struct i40e_virtchnl_promisc_info *info =
1130 (struct i40e_virtchnl_promisc_info *)msg;
1131 struct i40e_pf *pf = vf->pf;
1132 struct i40e_hw *hw = &pf->hw;
1133 bool allmulti = false;
1134 bool promisc = false;
1135 i40e_status aq_ret;
1136
1137 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1138 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1139 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1140 (pf->vsi[info->vsi_id]->type != I40E_VSI_FCOE)) {
1141 aq_ret = I40E_ERR_PARAM;
1142 goto error_param;
1143 }
1144
1145 if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC)
1146 promisc = true;
1147 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, info->vsi_id,
1148 promisc, NULL);
1149 if (aq_ret)
1150 goto error_param;
1151
1152 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1153 allmulti = true;
1154 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, info->vsi_id,
1155 allmulti, NULL);
1156
1157error_param:
1158 /* send the response to the vf */
1159 return i40e_vc_send_resp_to_vf(vf,
1160 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1161 aq_ret);
1162}
1163
1164/**
1165 * i40e_vc_config_queues_msg
1166 * @vf: pointer to the vf info
1167 * @msg: pointer to the msg buffer
1168 * @msglen: msg length
1169 *
1170 * called from the vf to configure the rx/tx
1171 * queues
1172 **/
1173static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1174{
1175 struct i40e_virtchnl_vsi_queue_config_info *qci =
1176 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1177 struct i40e_virtchnl_queue_pair_info *qpi;
1178 u16 vsi_id, vsi_queue_id;
1179 i40e_status aq_ret = 0;
1180 int i;
1181
1182 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1183 aq_ret = I40E_ERR_PARAM;
1184 goto error_param;
1185 }
1186
1187 vsi_id = qci->vsi_id;
1188 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1189 aq_ret = I40E_ERR_PARAM;
1190 goto error_param;
1191 }
1192 for (i = 0; i < qci->num_queue_pairs; i++) {
1193 qpi = &qci->qpair[i];
1194 vsi_queue_id = qpi->txq.queue_id;
1195 if ((qpi->txq.vsi_id != vsi_id) ||
1196 (qpi->rxq.vsi_id != vsi_id) ||
1197 (qpi->rxq.queue_id != vsi_queue_id) ||
1198 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1199 aq_ret = I40E_ERR_PARAM;
1200 goto error_param;
1201 }
1202
1203 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1204 &qpi->rxq) ||
1205 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1206 &qpi->txq)) {
1207 aq_ret = I40E_ERR_PARAM;
1208 goto error_param;
1209 }
1210 }
1211
1212error_param:
1213 /* send the response to the vf */
1214 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1215 aq_ret);
1216}
1217
1218/**
1219 * i40e_vc_config_irq_map_msg
1220 * @vf: pointer to the vf info
1221 * @msg: pointer to the msg buffer
1222 * @msglen: msg length
1223 *
1224 * called from the vf to configure the irq to
1225 * queue map
1226 **/
1227static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1228{
1229 struct i40e_virtchnl_irq_map_info *irqmap_info =
1230 (struct i40e_virtchnl_irq_map_info *)msg;
1231 struct i40e_virtchnl_vector_map *map;
1232 u16 vsi_id, vsi_queue_id, vector_id;
1233 i40e_status aq_ret = 0;
1234 unsigned long tempmap;
1235 int i;
1236
1237 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1238 aq_ret = I40E_ERR_PARAM;
1239 goto error_param;
1240 }
1241
1242 for (i = 0; i < irqmap_info->num_vectors; i++) {
1243 map = &irqmap_info->vecmap[i];
1244
1245 vector_id = map->vector_id;
1246 vsi_id = map->vsi_id;
1247 /* validate msg params */
1248 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1249 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1250 aq_ret = I40E_ERR_PARAM;
1251 goto error_param;
1252 }
1253
1254 /* lookout for the invalid queue index */
1255 tempmap = map->rxq_map;
1256 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1257 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1258 vsi_queue_id)) {
1259 aq_ret = I40E_ERR_PARAM;
1260 goto error_param;
1261 }
1262 }
1263
1264 tempmap = map->txq_map;
1265 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1266 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1267 vsi_queue_id)) {
1268 aq_ret = I40E_ERR_PARAM;
1269 goto error_param;
1270 }
1271 }
1272
1273 i40e_config_irq_link_list(vf, vsi_id, map);
1274 }
1275error_param:
1276 /* send the response to the vf */
1277 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1278 aq_ret);
1279}
1280
1281/**
1282 * i40e_vc_enable_queues_msg
1283 * @vf: pointer to the vf info
1284 * @msg: pointer to the msg buffer
1285 * @msglen: msg length
1286 *
1287 * called from the vf to enable all or specific queue(s)
1288 **/
1289static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1290{
1291 struct i40e_virtchnl_queue_select *vqs =
1292 (struct i40e_virtchnl_queue_select *)msg;
1293 struct i40e_pf *pf = vf->pf;
1294 u16 vsi_id = vqs->vsi_id;
1295 i40e_status aq_ret = 0;
1296
1297 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1298 aq_ret = I40E_ERR_PARAM;
1299 goto error_param;
1300 }
1301
1302 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1303 aq_ret = I40E_ERR_PARAM;
1304 goto error_param;
1305 }
1306
1307 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1308 aq_ret = I40E_ERR_PARAM;
1309 goto error_param;
1310 }
1311 if (i40e_vsi_control_rings(pf->vsi[vsi_id], true))
1312 aq_ret = I40E_ERR_TIMEOUT;
1313error_param:
1314 /* send the response to the vf */
1315 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1316 aq_ret);
1317}
1318
1319/**
1320 * i40e_vc_disable_queues_msg
1321 * @vf: pointer to the vf info
1322 * @msg: pointer to the msg buffer
1323 * @msglen: msg length
1324 *
1325 * called from the vf to disable all or specific
1326 * queue(s)
1327 **/
1328static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1329{
1330 struct i40e_virtchnl_queue_select *vqs =
1331 (struct i40e_virtchnl_queue_select *)msg;
1332 struct i40e_pf *pf = vf->pf;
1333 u16 vsi_id = vqs->vsi_id;
1334 i40e_status aq_ret = 0;
1335
1336 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1337 aq_ret = I40E_ERR_PARAM;
1338 goto error_param;
1339 }
1340
1341 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1342 aq_ret = I40E_ERR_PARAM;
1343 goto error_param;
1344 }
1345
1346 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1347 aq_ret = I40E_ERR_PARAM;
1348 goto error_param;
1349 }
1350 if (i40e_vsi_control_rings(pf->vsi[vsi_id], false))
1351 aq_ret = I40E_ERR_TIMEOUT;
1352
1353error_param:
1354 /* send the response to the vf */
1355 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1356 aq_ret);
1357}
1358
1359/**
1360 * i40e_vc_get_stats_msg
1361 * @vf: pointer to the vf info
1362 * @msg: pointer to the msg buffer
1363 * @msglen: msg length
1364 *
1365 * called from the vf to get vsi stats
1366 **/
1367static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1368{
1369 struct i40e_virtchnl_queue_select *vqs =
1370 (struct i40e_virtchnl_queue_select *)msg;
1371 struct i40e_pf *pf = vf->pf;
1372 struct i40e_eth_stats stats;
1373 i40e_status aq_ret = 0;
1374 struct i40e_vsi *vsi;
1375
1376 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1377
1378 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1379 aq_ret = I40E_ERR_PARAM;
1380 goto error_param;
1381 }
1382
1383 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1384 aq_ret = I40E_ERR_PARAM;
1385 goto error_param;
1386 }
1387
1388 vsi = pf->vsi[vqs->vsi_id];
1389 if (!vsi) {
1390 aq_ret = I40E_ERR_PARAM;
1391 goto error_param;
1392 }
1393 i40e_update_eth_stats(vsi);
1394 stats = vsi->eth_stats;
1395
1396error_param:
1397 /* send the response back to the vf */
1398 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1399 (u8 *)&stats, sizeof(stats));
1400}
1401
1402/**
1403 * i40e_check_vf_permission
1404 * @vf: pointer to the vf info
1405 * @macaddr: pointer to the MAC Address being checked
1406 *
1407 * Check if the VF has permission to add or delete unicast MAC address
1408 * filters and return error code -EPERM if not. Then check if the
1409 * address filter requested is broadcast or zero and if so return
1410 * an invalid MAC address error code.
1411 **/
1412static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1413{
1414 struct i40e_pf *pf = vf->pf;
1415 int ret = 0;
1416
1417 if (is_broadcast_ether_addr(macaddr) ||
1418 is_zero_ether_addr(macaddr)) {
1419 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1420 ret = I40E_ERR_INVALID_MAC_ADDR;
1421 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1422 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1423 /* If the host VMM administrator has set the VF MAC address
1424 * administratively via the ndo_set_vf_mac command then deny
1425 * permission to the VF to add or delete unicast MAC addresses.
1426 * The VF may request to set the MAC address filter already
1427 * assigned to it so do not return an error in that case.
1428 */
1429 dev_err(&pf->pdev->dev,
1430 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
1431 ret = -EPERM;
1432 }
1433 return ret;
1434}
1435
1436/**
1437 * i40e_vc_add_mac_addr_msg
1438 * @vf: pointer to the vf info
1439 * @msg: pointer to the msg buffer
1440 * @msglen: msg length
1441 *
1442 * add guest mac address filter
1443 **/
1444static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1445{
1446 struct i40e_virtchnl_ether_addr_list *al =
1447 (struct i40e_virtchnl_ether_addr_list *)msg;
1448 struct i40e_pf *pf = vf->pf;
1449 struct i40e_vsi *vsi = NULL;
1450 u16 vsi_id = al->vsi_id;
1451 i40e_status ret = 0;
1452 int i;
1453
1454 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1455 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1456 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1457 ret = I40E_ERR_PARAM;
1458 goto error_param;
1459 }
1460
1461 for (i = 0; i < al->num_elements; i++) {
1462 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1463 if (ret)
1464 goto error_param;
1465 }
1466 vsi = pf->vsi[vsi_id];
1467
1468 /* add new addresses to the list */
1469 for (i = 0; i < al->num_elements; i++) {
1470 struct i40e_mac_filter *f;
1471
1472 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1473 if (!f) {
1474 if (i40e_is_vsi_in_vlan(vsi))
1475 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1476 true, false);
1477 else
1478 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1479 true, false);
1480 }
1481
1482 if (!f) {
1483 dev_err(&pf->pdev->dev,
1484 "Unable to add VF MAC filter\n");
1485 ret = I40E_ERR_PARAM;
1486 goto error_param;
1487 }
1488 }
1489
1490 /* program the updated filter list */
1491 if (i40e_sync_vsi_filters(vsi))
1492 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1493
1494error_param:
1495 /* send the response to the vf */
1496 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1497 ret);
1498}
1499
1500/**
1501 * i40e_vc_del_mac_addr_msg
1502 * @vf: pointer to the vf info
1503 * @msg: pointer to the msg buffer
1504 * @msglen: msg length
1505 *
1506 * remove guest mac address filter
1507 **/
1508static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1509{
1510 struct i40e_virtchnl_ether_addr_list *al =
1511 (struct i40e_virtchnl_ether_addr_list *)msg;
1512 struct i40e_pf *pf = vf->pf;
1513 struct i40e_vsi *vsi = NULL;
1514 u16 vsi_id = al->vsi_id;
1515 i40e_status ret = 0;
1516 int i;
1517
1518 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1519 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1520 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1521 ret = I40E_ERR_PARAM;
1522 goto error_param;
1523 }
1524
1525 for (i = 0; i < al->num_elements; i++) {
1526 if (is_broadcast_ether_addr(al->list[i].addr) ||
1527 is_zero_ether_addr(al->list[i].addr)) {
1528 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
1529 al->list[i].addr);
1530 ret = I40E_ERR_INVALID_MAC_ADDR;
1531 goto error_param;
1532 }
1533 }
1534 vsi = pf->vsi[vsi_id];
1535
1536 /* delete addresses from the list */
1537 for (i = 0; i < al->num_elements; i++)
1538 i40e_del_filter(vsi, al->list[i].addr,
1539 I40E_VLAN_ANY, true, false);
1540
1541 /* program the updated filter list */
1542 if (i40e_sync_vsi_filters(vsi))
1543 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1544
1545error_param:
1546 /* send the response to the vf */
1547 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
1548 ret);
1549}
1550
1551/**
1552 * i40e_vc_add_vlan_msg
1553 * @vf: pointer to the vf info
1554 * @msg: pointer to the msg buffer
1555 * @msglen: msg length
1556 *
1557 * program guest vlan id
1558 **/
1559static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1560{
1561 struct i40e_virtchnl_vlan_filter_list *vfl =
1562 (struct i40e_virtchnl_vlan_filter_list *)msg;
1563 struct i40e_pf *pf = vf->pf;
1564 struct i40e_vsi *vsi = NULL;
1565 u16 vsi_id = vfl->vsi_id;
1566 i40e_status aq_ret = 0;
1567 int i;
1568
1569 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1570 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1571 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1572 aq_ret = I40E_ERR_PARAM;
1573 goto error_param;
1574 }
1575
1576 for (i = 0; i < vfl->num_elements; i++) {
1577 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1578 aq_ret = I40E_ERR_PARAM;
1579 dev_err(&pf->pdev->dev,
1580 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1581 goto error_param;
1582 }
1583 }
1584 vsi = pf->vsi[vsi_id];
1585 if (vsi->info.pvid) {
1586 aq_ret = I40E_ERR_PARAM;
1587 goto error_param;
1588 }
1589
1590 i40e_vlan_stripping_enable(vsi);
1591 for (i = 0; i < vfl->num_elements; i++) {
1592 /* add new VLAN filter */
1593 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1594 if (ret)
1595 dev_err(&pf->pdev->dev,
1596 "Unable to add VF vlan filter %d, error %d\n",
1597 vfl->vlan_id[i], ret);
1598 }
1599
1600error_param:
1601 /* send the response to the vf */
1602 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1603}
1604
1605/**
1606 * i40e_vc_remove_vlan_msg
1607 * @vf: pointer to the vf info
1608 * @msg: pointer to the msg buffer
1609 * @msglen: msg length
1610 *
1611 * remove programmed guest vlan id
1612 **/
1613static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1614{
1615 struct i40e_virtchnl_vlan_filter_list *vfl =
1616 (struct i40e_virtchnl_vlan_filter_list *)msg;
1617 struct i40e_pf *pf = vf->pf;
1618 struct i40e_vsi *vsi = NULL;
1619 u16 vsi_id = vfl->vsi_id;
1620 i40e_status aq_ret = 0;
1621 int i;
1622
1623 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1624 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1625 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1626 aq_ret = I40E_ERR_PARAM;
1627 goto error_param;
1628 }
1629
1630 for (i = 0; i < vfl->num_elements; i++) {
1631 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1632 aq_ret = I40E_ERR_PARAM;
1633 goto error_param;
1634 }
1635 }
1636
1637 vsi = pf->vsi[vsi_id];
1638 if (vsi->info.pvid) {
1639 aq_ret = I40E_ERR_PARAM;
1640 goto error_param;
1641 }
1642
1643 for (i = 0; i < vfl->num_elements; i++) {
1644 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1645 if (ret)
1646 dev_err(&pf->pdev->dev,
1647 "Unable to delete VF vlan filter %d, error %d\n",
1648 vfl->vlan_id[i], ret);
1649 }
1650
1651error_param:
1652 /* send the response to the vf */
1653 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1654}
1655
1656/**
1657 * i40e_vc_validate_vf_msg
1658 * @vf: pointer to the vf info
1659 * @msg: pointer to the msg buffer
1660 * @msglen: msg length
1661 * @msghndl: msg handle
1662 *
1663 * validate msg
1664 **/
1665static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
1666 u32 v_retval, u8 *msg, u16 msglen)
1667{
1668 bool err_msg_format = false;
1669 int valid_len;
1670
1671 /* Check if VF is disabled. */
1672 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
1673 return I40E_ERR_PARAM;
1674
1675 /* Validate message length. */
1676 switch (v_opcode) {
1677 case I40E_VIRTCHNL_OP_VERSION:
1678 valid_len = sizeof(struct i40e_virtchnl_version_info);
1679 break;
1680 case I40E_VIRTCHNL_OP_RESET_VF:
1681 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1682 valid_len = 0;
1683 break;
1684 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
1685 valid_len = sizeof(struct i40e_virtchnl_txq_info);
1686 break;
1687 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
1688 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
1689 break;
1690 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1691 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
1692 if (msglen >= valid_len) {
1693 struct i40e_virtchnl_vsi_queue_config_info *vqc =
1694 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1695 valid_len += (vqc->num_queue_pairs *
1696 sizeof(struct
1697 i40e_virtchnl_queue_pair_info));
1698 if (vqc->num_queue_pairs == 0)
1699 err_msg_format = true;
1700 }
1701 break;
1702 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1703 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
1704 if (msglen >= valid_len) {
1705 struct i40e_virtchnl_irq_map_info *vimi =
1706 (struct i40e_virtchnl_irq_map_info *)msg;
1707 valid_len += (vimi->num_vectors *
1708 sizeof(struct i40e_virtchnl_vector_map));
1709 if (vimi->num_vectors == 0)
1710 err_msg_format = true;
1711 }
1712 break;
1713 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1714 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1715 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1716 break;
1717 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1718 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1719 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
1720 if (msglen >= valid_len) {
1721 struct i40e_virtchnl_ether_addr_list *veal =
1722 (struct i40e_virtchnl_ether_addr_list *)msg;
1723 valid_len += veal->num_elements *
1724 sizeof(struct i40e_virtchnl_ether_addr);
1725 if (veal->num_elements == 0)
1726 err_msg_format = true;
1727 }
1728 break;
1729 case I40E_VIRTCHNL_OP_ADD_VLAN:
1730 case I40E_VIRTCHNL_OP_DEL_VLAN:
1731 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
1732 if (msglen >= valid_len) {
1733 struct i40e_virtchnl_vlan_filter_list *vfl =
1734 (struct i40e_virtchnl_vlan_filter_list *)msg;
1735 valid_len += vfl->num_elements * sizeof(u16);
1736 if (vfl->num_elements == 0)
1737 err_msg_format = true;
1738 }
1739 break;
1740 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1741 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
1742 break;
1743 case I40E_VIRTCHNL_OP_GET_STATS:
1744 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1745 break;
1746 /* These are always errors coming from the VF. */
1747 case I40E_VIRTCHNL_OP_EVENT:
1748 case I40E_VIRTCHNL_OP_UNKNOWN:
1749 default:
1750 return -EPERM;
1751 break;
1752 }
1753 /* few more checks */
1754 if ((valid_len != msglen) || (err_msg_format)) {
1755 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
1756 return -EINVAL;
1757 } else {
1758 return 0;
1759 }
1760}
1761
1762/**
1763 * i40e_vc_process_vf_msg
1764 * @pf: pointer to the pf structure
1765 * @vf_id: source vf id
1766 * @msg: pointer to the msg buffer
1767 * @msglen: msg length
1768 * @msghndl: msg handle
1769 *
1770 * called from the common aeq/arq handler to
1771 * process request from vf
1772 **/
1773int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
1774 u32 v_retval, u8 *msg, u16 msglen)
1775{
1776 struct i40e_hw *hw = &pf->hw;
1777 unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
1778 struct i40e_vf *vf;
1779 int ret;
1780
1781 pf->vf_aq_requests++;
1782 if (local_vf_id >= pf->num_alloc_vfs)
1783 return -EINVAL;
1784 vf = &(pf->vf[local_vf_id]);
1785 /* perform basic checks on the msg */
1786 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
1787
1788 if (ret) {
1789 dev_err(&pf->pdev->dev, "Invalid message from vf %d, opcode %d, len %d\n",
1790 local_vf_id, v_opcode, msglen);
1791 return ret;
1792 }
1793
1794 switch (v_opcode) {
1795 case I40E_VIRTCHNL_OP_VERSION:
1796 ret = i40e_vc_get_version_msg(vf);
1797 break;
1798 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1799 ret = i40e_vc_get_vf_resources_msg(vf);
1800 break;
1801 case I40E_VIRTCHNL_OP_RESET_VF:
1802 i40e_vc_reset_vf_msg(vf);
1803 ret = 0;
1804 break;
1805 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1806 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
1807 break;
1808 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1809 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
1810 break;
1811 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1812 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
1813 break;
1814 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1815 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
1816 break;
1817 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1818 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
1819 break;
1820 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1821 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
1822 break;
1823 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1824 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
1825 break;
1826 case I40E_VIRTCHNL_OP_ADD_VLAN:
1827 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
1828 break;
1829 case I40E_VIRTCHNL_OP_DEL_VLAN:
1830 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
1831 break;
1832 case I40E_VIRTCHNL_OP_GET_STATS:
1833 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
1834 break;
1835 case I40E_VIRTCHNL_OP_UNKNOWN:
1836 default:
1837 dev_err(&pf->pdev->dev, "Unsupported opcode %d from vf %d\n",
1838 v_opcode, local_vf_id);
1839 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
1840 I40E_ERR_NOT_IMPLEMENTED);
1841 break;
1842 }
1843
1844 return ret;
1845}
1846
1847/**
1848 * i40e_vc_process_vflr_event
1849 * @pf: pointer to the pf structure
1850 *
1851 * called from the vlfr irq handler to
1852 * free up vf resources and state variables
1853 **/
1854int i40e_vc_process_vflr_event(struct i40e_pf *pf)
1855{
1856 u32 reg, reg_idx, bit_idx, vf_id;
1857 struct i40e_hw *hw = &pf->hw;
1858 struct i40e_vf *vf;
1859
1860 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
1861 return 0;
1862
1863 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
1864 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
1865 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1866 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1867 /* read GLGEN_VFLRSTAT register to find out the flr vfs */
1868 vf = &pf->vf[vf_id];
1869 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
1870 if (reg & (1 << bit_idx)) {
1871 /* clear the bit in GLGEN_VFLRSTAT */
1872 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
1873
1874 if (!test_bit(__I40E_DOWN, &pf->state))
1875 i40e_reset_vf(vf, true);
1876 }
1877 }
1878
1879 /* re-enable vflr interrupt cause */
1880 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
1881 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
1882 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
1883 i40e_flush(hw);
1884
1885 return 0;
1886}
1887
1888/**
1889 * i40e_vc_vf_broadcast
1890 * @pf: pointer to the pf structure
1891 * @opcode: operation code
1892 * @retval: return value
1893 * @msg: pointer to the msg buffer
1894 * @msglen: msg length
1895 *
1896 * send a message to all VFs on a given PF
1897 **/
1898static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
1899 enum i40e_virtchnl_ops v_opcode,
1900 i40e_status v_retval, u8 *msg,
1901 u16 msglen)
1902{
1903 struct i40e_hw *hw = &pf->hw;
1904 struct i40e_vf *vf = pf->vf;
1905 int i;
1906
1907 for (i = 0; i < pf->num_alloc_vfs; i++) {
1908 /* Ignore return value on purpose - a given VF may fail, but
1909 * we need to keep going and send to all of them
1910 */
1911 i40e_aq_send_msg_to_vf(hw, vf->vf_id, v_opcode, v_retval,
1912 msg, msglen, NULL);
1913 vf++;
1914 }
1915}
1916
1917/**
1918 * i40e_vc_notify_link_state
1919 * @pf: pointer to the pf structure
1920 *
1921 * send a link status message to all VFs on a given PF
1922 **/
1923void i40e_vc_notify_link_state(struct i40e_pf *pf)
1924{
1925 struct i40e_virtchnl_pf_event pfe;
1926 struct i40e_hw *hw = &pf->hw;
1927 struct i40e_vf *vf = pf->vf;
1928 struct i40e_link_status *ls = &pf->hw.phy.link_info;
1929 int i;
1930
1931 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
1932 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
1933 for (i = 0; i < pf->num_alloc_vfs; i++) {
1934 if (vf->link_forced) {
1935 pfe.event_data.link_event.link_status = vf->link_up;
1936 pfe.event_data.link_event.link_speed =
1937 (vf->link_up ? I40E_LINK_SPEED_40GB : 0);
1938 } else {
1939 pfe.event_data.link_event.link_status =
1940 ls->link_info & I40E_AQ_LINK_UP;
1941 pfe.event_data.link_event.link_speed = ls->link_speed;
1942 }
1943 i40e_aq_send_msg_to_vf(hw, vf->vf_id, I40E_VIRTCHNL_OP_EVENT,
1944 0, (u8 *)&pfe, sizeof(pfe),
1945 NULL);
1946 vf++;
1947 }
1948}
1949
1950/**
1951 * i40e_vc_notify_reset
1952 * @pf: pointer to the pf structure
1953 *
1954 * indicate a pending reset to all VFs on a given PF
1955 **/
1956void i40e_vc_notify_reset(struct i40e_pf *pf)
1957{
1958 struct i40e_virtchnl_pf_event pfe;
1959
1960 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
1961 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
1962 i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, I40E_SUCCESS,
1963 (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
1964}
1965
1966/**
1967 * i40e_vc_notify_vf_reset
1968 * @vf: pointer to the vf structure
1969 *
1970 * indicate a pending reset to the given VF
1971 **/
1972void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
1973{
1974 struct i40e_virtchnl_pf_event pfe;
1975
1976 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
1977 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
1978 i40e_aq_send_msg_to_vf(&vf->pf->hw, vf->vf_id, I40E_VIRTCHNL_OP_EVENT,
1979 I40E_SUCCESS, (u8 *)&pfe,
1980 sizeof(struct i40e_virtchnl_pf_event), NULL);
1981}
1982
1983/**
1984 * i40e_ndo_set_vf_mac
1985 * @netdev: network interface device structure
1986 * @vf_id: vf identifier
1987 * @mac: mac address
1988 *
1989 * program vf mac address
1990 **/
1991int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
1992{
1993 struct i40e_netdev_priv *np = netdev_priv(netdev);
1994 struct i40e_vsi *vsi = np->vsi;
1995 struct i40e_pf *pf = vsi->back;
1996 struct i40e_mac_filter *f;
1997 struct i40e_vf *vf;
1998 int ret = 0;
1999
2000 /* validate the request */
2001 if (vf_id >= pf->num_alloc_vfs) {
2002 dev_err(&pf->pdev->dev,
2003 "Invalid VF Identifier %d\n", vf_id);
2004 ret = -EINVAL;
2005 goto error_param;
2006 }
2007
2008 vf = &(pf->vf[vf_id]);
2009 vsi = pf->vsi[vf->lan_vsi_index];
2010 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2011 dev_err(&pf->pdev->dev,
2012 "Uninitialized VF %d\n", vf_id);
2013 ret = -EINVAL;
2014 goto error_param;
2015 }
2016
2017 if (!is_valid_ether_addr(mac)) {
2018 dev_err(&pf->pdev->dev,
2019 "Invalid VF ethernet address\n");
2020 ret = -EINVAL;
2021 goto error_param;
2022 }
2023
2024 /* delete the temporary mac address */
2025 i40e_del_filter(vsi, vf->default_lan_addr.addr, 0, true, false);
2026
2027 /* add the new mac address */
2028 f = i40e_add_filter(vsi, mac, 0, true, false);
2029 if (!f) {
2030 dev_err(&pf->pdev->dev,
2031 "Unable to add VF ucast filter\n");
2032 ret = -ENOMEM;
2033 goto error_param;
2034 }
2035
2036 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2037 /* program mac filter */
2038 if (i40e_sync_vsi_filters(vsi)) {
2039 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2040 ret = -EIO;
2041 goto error_param;
2042 }
2043 memcpy(vf->default_lan_addr.addr, mac, ETH_ALEN);
2044 vf->pf_set_mac = true;
2045 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2046 ret = 0;
2047
2048error_param:
2049 return ret;
2050}
2051
2052/**
2053 * i40e_ndo_set_vf_port_vlan
2054 * @netdev: network interface device structure
2055 * @vf_id: vf identifier
2056 * @vlan_id: mac address
2057 * @qos: priority setting
2058 *
2059 * program vf vlan id and/or qos
2060 **/
2061int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2062 int vf_id, u16 vlan_id, u8 qos)
2063{
2064 struct i40e_netdev_priv *np = netdev_priv(netdev);
2065 struct i40e_pf *pf = np->vsi->back;
2066 struct i40e_vsi *vsi;
2067 struct i40e_vf *vf;
2068 int ret = 0;
2069
2070 /* validate the request */
2071 if (vf_id >= pf->num_alloc_vfs) {
2072 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2073 ret = -EINVAL;
2074 goto error_pvid;
2075 }
2076
2077 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2078 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2079 ret = -EINVAL;
2080 goto error_pvid;
2081 }
2082
2083 vf = &(pf->vf[vf_id]);
2084 vsi = pf->vsi[vf->lan_vsi_index];
2085 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2086 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2087 ret = -EINVAL;
2088 goto error_pvid;
2089 }
2090
2091 if (vsi->info.pvid == 0 && i40e_is_vsi_in_vlan(vsi))
2092 dev_err(&pf->pdev->dev,
2093 "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",
2094 vf_id);
2095
2096 /* Check for condition where there was already a port VLAN ID
2097 * filter set and now it is being deleted by setting it to zero.
2098 * Before deleting all the old VLAN filters we must add new ones
2099 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2100 * MAC addresses deleted.
2101 */
2102 if (!(vlan_id || qos) && vsi->info.pvid)
2103 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
2104
2105 if (vsi->info.pvid) {
2106 /* kill old VLAN */
2107 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2108 VLAN_VID_MASK));
2109 if (ret) {
2110 dev_info(&vsi->back->pdev->dev,
2111 "remove VLAN failed, ret=%d, aq_err=%d\n",
2112 ret, pf->hw.aq.asq_last_status);
2113 }
2114 }
2115 if (vlan_id || qos)
2116 ret = i40e_vsi_add_pvid(vsi,
2117 vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT));
2118 else
2119 i40e_vsi_remove_pvid(vsi);
2120
2121 if (vlan_id) {
2122 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2123 vlan_id, qos, vf_id);
2124
2125 /* add new VLAN filter */
2126 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2127 if (ret) {
2128 dev_info(&vsi->back->pdev->dev,
2129 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2130 vsi->back->hw.aq.asq_last_status);
2131 goto error_pvid;
2132 }
2133 /* Kill non-vlan MAC filters - ignore error return since
2134 * there might not be any non-vlan MAC filters.
2135 */
2136 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
2137 }
2138
2139 if (ret) {
2140 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2141 goto error_pvid;
2142 }
2143 /* The Port VLAN needs to be saved across resets the same as the
2144 * default LAN MAC address.
2145 */
2146 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2147 ret = 0;
2148
2149error_pvid:
2150 return ret;
2151}
2152
2153/**
2154 * i40e_ndo_set_vf_bw
2155 * @netdev: network interface device structure
2156 * @vf_id: vf identifier
2157 * @tx_rate: tx rate
2158 *
2159 * configure vf tx rate
2160 **/
2161int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int tx_rate)
2162{
2163 return -EOPNOTSUPP;
2164}
2165
2166/**
2167 * i40e_ndo_get_vf_config
2168 * @netdev: network interface device structure
2169 * @vf_id: vf identifier
2170 * @ivi: vf configuration structure
2171 *
2172 * return vf configuration
2173 **/
2174int i40e_ndo_get_vf_config(struct net_device *netdev,
2175 int vf_id, struct ifla_vf_info *ivi)
2176{
2177 struct i40e_netdev_priv *np = netdev_priv(netdev);
2178 struct i40e_vsi *vsi = np->vsi;
2179 struct i40e_pf *pf = vsi->back;
2180 struct i40e_vf *vf;
2181 int ret = 0;
2182
2183 /* validate the request */
2184 if (vf_id >= pf->num_alloc_vfs) {
2185 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2186 ret = -EINVAL;
2187 goto error_param;
2188 }
2189
2190 vf = &(pf->vf[vf_id]);
2191 /* first vsi is always the LAN vsi */
2192 vsi = pf->vsi[vf->lan_vsi_index];
2193 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2194 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2195 ret = -EINVAL;
2196 goto error_param;
2197 }
2198
2199 ivi->vf = vf_id;
2200
2201 memcpy(&ivi->mac, vf->default_lan_addr.addr, ETH_ALEN);
2202
2203 ivi->tx_rate = 0;
2204 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2205 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2206 I40E_VLAN_PRIORITY_SHIFT;
2207 ret = 0;
2208
2209error_param:
2210 return ret;
2211}
2212
2213/**
2214 * i40e_ndo_set_vf_link_state
2215 * @netdev: network interface device structure
2216 * @vf_id: vf identifier
2217 * @link: required link state
2218 *
2219 * Set the link state of a specified VF, regardless of physical link state
2220 **/
2221int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
2222{
2223 struct i40e_netdev_priv *np = netdev_priv(netdev);
2224 struct i40e_pf *pf = np->vsi->back;
2225 struct i40e_virtchnl_pf_event pfe;
2226 struct i40e_hw *hw = &pf->hw;
2227 struct i40e_vf *vf;
2228 int ret = 0;
2229
2230 /* validate the request */
2231 if (vf_id >= pf->num_alloc_vfs) {
2232 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2233 ret = -EINVAL;
2234 goto error_out;
2235 }
2236
2237 vf = &pf->vf[vf_id];
2238
2239 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
2240 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
2241
2242 switch (link) {
2243 case IFLA_VF_LINK_STATE_AUTO:
2244 vf->link_forced = false;
2245 pfe.event_data.link_event.link_status =
2246 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
2247 pfe.event_data.link_event.link_speed =
2248 pf->hw.phy.link_info.link_speed;
2249 break;
2250 case IFLA_VF_LINK_STATE_ENABLE:
2251 vf->link_forced = true;
2252 vf->link_up = true;
2253 pfe.event_data.link_event.link_status = true;
2254 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
2255 break;
2256 case IFLA_VF_LINK_STATE_DISABLE:
2257 vf->link_forced = true;
2258 vf->link_up = false;
2259 pfe.event_data.link_event.link_status = false;
2260 pfe.event_data.link_event.link_speed = 0;
2261 break;
2262 default:
2263 ret = -EINVAL;
2264 goto error_out;
2265 }
2266 /* Notify the VF of its new link state */
2267 i40e_aq_send_msg_to_vf(hw, vf->vf_id, I40E_VIRTCHNL_OP_EVENT,
2268 0, (u8 *)&pfe, sizeof(pfe), NULL);
2269
2270error_out:
2271 return ret;
2272}