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i40e/i40evf: Reset VLAN filter count when resetting
[deliverable/linux.git] / drivers / net / ethernet / intel / i40e / i40e_virtchnl_pf.c
1 /*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2016 Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
17 *
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
20 *
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 ******************************************************************************/
26
27 #include "i40e.h"
28
29 /*********************notification routines***********************/
30
31 /**
32 * i40e_vc_vf_broadcast
33 * @pf: pointer to the PF structure
34 * @opcode: operation code
35 * @retval: return value
36 * @msg: pointer to the msg buffer
37 * @msglen: msg length
38 *
39 * send a message to all VFs on a given PF
40 **/
41 static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
42 enum 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 + (int)hw->func_caps.vf_base_id;
52 /* Not all vfs are enabled so skip the ones that are not */
53 if (!test_bit(I40E_VF_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_vf_link_state
67 * @vf: pointer to the VF structure
68 *
69 * send a link status message to a single VF
70 **/
71 static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
72 {
73 struct 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 + (int)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 **/
100 void 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 **/
114 void 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 **/
130 void 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 + (int)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 **/
161 static 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 **/
174 static 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 **/
190 static 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 **/
206 static 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 **/
223 static 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 **/
252 static 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
350 irq_list_done:
351 i40e_flush(hw);
352 }
353
354 /**
355 * i40e_release_iwarp_qvlist
356 * @vf: pointer to the VF.
357 *
358 **/
359 static 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 **/
411 static 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;
478 err:
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 **/
493 static 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
549 error_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 **/
562 static 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 split 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
640 error_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 **/
651 static 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 u64 hena = i40e_pf_get_default_rss_hena(pf);
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 spin_unlock_bh(&vsi->mac_filter_list_lock);
692 i40e_write_rx_ctl(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id),
693 (u32)hena);
694 i40e_write_rx_ctl(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id),
695 (u32)(hena >> 32));
696 }
697
698 /* program mac filter */
699 ret = i40e_sync_vsi_filters(vsi);
700 if (ret)
701 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
702
703 /* Set VF bandwidth if specified */
704 if (vf->tx_rate) {
705 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
706 vf->tx_rate / 50, 0, NULL);
707 if (ret)
708 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
709 vf->vf_id, ret);
710 }
711
712 error_alloc_vsi_res:
713 return ret;
714 }
715
716 /**
717 * i40e_enable_vf_mappings
718 * @vf: pointer to the VF info
719 *
720 * enable VF mappings
721 **/
722 static void i40e_enable_vf_mappings(struct i40e_vf *vf)
723 {
724 struct i40e_pf *pf = vf->pf;
725 struct i40e_hw *hw = &pf->hw;
726 u32 reg, total_queue_pairs = 0;
727 int j;
728
729 /* Tell the hardware we're using noncontiguous mapping. HW requires
730 * that VF queues be mapped using this method, even when they are
731 * contiguous in real life
732 */
733 i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
734 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
735
736 /* enable VF vplan_qtable mappings */
737 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
738 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
739
740 /* map PF queues to VF queues */
741 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) {
742 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j);
743
744 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
745 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
746 total_queue_pairs++;
747 }
748
749 /* map PF queues to VSI */
750 for (j = 0; j < 7; j++) {
751 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) {
752 reg = 0x07FF07FF; /* unused */
753 } else {
754 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
755 j * 2);
756 reg = qid;
757 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
758 (j * 2) + 1);
759 reg |= qid << 16;
760 }
761 i40e_write_rx_ctl(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id),
762 reg);
763 }
764
765 i40e_flush(hw);
766 }
767
768 /**
769 * i40e_disable_vf_mappings
770 * @vf: pointer to the VF info
771 *
772 * disable VF mappings
773 **/
774 static void i40e_disable_vf_mappings(struct i40e_vf *vf)
775 {
776 struct i40e_pf *pf = vf->pf;
777 struct i40e_hw *hw = &pf->hw;
778 int i;
779
780 /* disable qp mappings */
781 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
782 for (i = 0; i < I40E_MAX_VSI_QP; i++)
783 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
784 I40E_QUEUE_END_OF_LIST);
785 i40e_flush(hw);
786 }
787
788 /**
789 * i40e_free_vf_res
790 * @vf: pointer to the VF info
791 *
792 * free VF resources
793 **/
794 static void i40e_free_vf_res(struct i40e_vf *vf)
795 {
796 struct i40e_pf *pf = vf->pf;
797 struct i40e_hw *hw = &pf->hw;
798 u32 reg_idx, reg;
799 int i, msix_vf;
800
801 /* free vsi & disconnect it from the parent uplink */
802 if (vf->lan_vsi_idx) {
803 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
804 vf->lan_vsi_idx = 0;
805 vf->lan_vsi_id = 0;
806 }
807 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
808
809 /* disable interrupts so the VF starts in a known state */
810 for (i = 0; i < msix_vf; i++) {
811 /* format is same for both registers */
812 if (0 == i)
813 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
814 else
815 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
816 (vf->vf_id))
817 + (i - 1));
818 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
819 i40e_flush(hw);
820 }
821
822 /* clear the irq settings */
823 for (i = 0; i < msix_vf; i++) {
824 /* format is same for both registers */
825 if (0 == i)
826 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
827 else
828 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
829 (vf->vf_id))
830 + (i - 1));
831 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
832 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
833 wr32(hw, reg_idx, reg);
834 i40e_flush(hw);
835 }
836 /* reset some of the state varibles keeping
837 * track of the resources
838 */
839 vf->num_queue_pairs = 0;
840 vf->vf_states = 0;
841 clear_bit(I40E_VF_STAT_INIT, &vf->vf_states);
842 }
843
844 /**
845 * i40e_alloc_vf_res
846 * @vf: pointer to the VF info
847 *
848 * allocate VF resources
849 **/
850 static int i40e_alloc_vf_res(struct i40e_vf *vf)
851 {
852 struct i40e_pf *pf = vf->pf;
853 int total_queue_pairs = 0;
854 int ret;
855
856 /* allocate hw vsi context & associated resources */
857 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
858 if (ret)
859 goto error_alloc;
860 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
861
862 if (vf->trusted)
863 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
864 else
865 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
866
867 /* store the total qps number for the runtime
868 * VF req validation
869 */
870 vf->num_queue_pairs = total_queue_pairs;
871
872 /* VF is now completely initialized */
873 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
874
875 error_alloc:
876 if (ret)
877 i40e_free_vf_res(vf);
878
879 return ret;
880 }
881
882 #define VF_DEVICE_STATUS 0xAA
883 #define VF_TRANS_PENDING_MASK 0x20
884 /**
885 * i40e_quiesce_vf_pci
886 * @vf: pointer to the VF structure
887 *
888 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
889 * if the transactions never clear.
890 **/
891 static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
892 {
893 struct i40e_pf *pf = vf->pf;
894 struct i40e_hw *hw = &pf->hw;
895 int vf_abs_id, i;
896 u32 reg;
897
898 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
899
900 wr32(hw, I40E_PF_PCI_CIAA,
901 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
902 for (i = 0; i < 100; i++) {
903 reg = rd32(hw, I40E_PF_PCI_CIAD);
904 if ((reg & VF_TRANS_PENDING_MASK) == 0)
905 return 0;
906 udelay(1);
907 }
908 return -EIO;
909 }
910
911 /**
912 * i40e_reset_vf
913 * @vf: pointer to the VF structure
914 * @flr: VFLR was issued or not
915 *
916 * reset the VF
917 **/
918 void i40e_reset_vf(struct i40e_vf *vf, bool flr)
919 {
920 struct i40e_pf *pf = vf->pf;
921 struct i40e_hw *hw = &pf->hw;
922 u32 reg, reg_idx, bit_idx;
923 bool rsd = false;
924 int i;
925
926 if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
927 return;
928
929 /* warn the VF */
930 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
931
932 /* In the case of a VFLR, the HW has already reset the VF and we
933 * just need to clean up, so don't hit the VFRTRIG register.
934 */
935 if (!flr) {
936 /* reset VF using VPGEN_VFRTRIG reg */
937 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
938 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
939 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
940 i40e_flush(hw);
941 }
942 /* clear the VFLR bit in GLGEN_VFLRSTAT */
943 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
944 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
945 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
946 i40e_flush(hw);
947
948 if (i40e_quiesce_vf_pci(vf))
949 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
950 vf->vf_id);
951
952 /* poll VPGEN_VFRSTAT reg to make sure
953 * that reset is complete
954 */
955 for (i = 0; i < 10; i++) {
956 /* VF reset requires driver to first reset the VF and then
957 * poll the status register to make sure that the reset
958 * completed successfully. Due to internal HW FIFO flushes,
959 * we must wait 10ms before the register will be valid.
960 */
961 usleep_range(10000, 20000);
962 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
963 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
964 rsd = true;
965 break;
966 }
967 }
968
969 if (flr)
970 usleep_range(10000, 20000);
971
972 if (!rsd)
973 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
974 vf->vf_id);
975 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
976 /* clear the reset bit in the VPGEN_VFRTRIG reg */
977 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
978 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
979 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
980
981 /* On initial reset, we won't have any queues */
982 if (vf->lan_vsi_idx == 0)
983 goto complete_reset;
984
985 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false);
986 complete_reset:
987 /* reallocate VF resources to reset the VSI state */
988 i40e_free_vf_res(vf);
989 if (!i40e_alloc_vf_res(vf)) {
990 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
991 i40e_enable_vf_mappings(vf);
992 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
993 clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
994 i40e_notify_client_of_vf_reset(pf, abs_vf_id);
995 vf->num_vlan = 0;
996 }
997 /* tell the VF the reset is done */
998 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
999
1000 i40e_flush(hw);
1001 clear_bit(__I40E_VF_DISABLE, &pf->state);
1002 }
1003
1004 /**
1005 * i40e_free_vfs
1006 * @pf: pointer to the PF structure
1007 *
1008 * free VF resources
1009 **/
1010 void i40e_free_vfs(struct i40e_pf *pf)
1011 {
1012 struct i40e_hw *hw = &pf->hw;
1013 u32 reg_idx, bit_idx;
1014 int i, tmp, vf_id;
1015
1016 if (!pf->vf)
1017 return;
1018 while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
1019 usleep_range(1000, 2000);
1020
1021 i40e_notify_client_of_vf_enable(pf, 0);
1022 for (i = 0; i < pf->num_alloc_vfs; i++)
1023 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
1024 i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
1025 false);
1026
1027 /* Disable IOV before freeing resources. This lets any VF drivers
1028 * running in the host get themselves cleaned up before we yank
1029 * the carpet out from underneath their feet.
1030 */
1031 if (!pci_vfs_assigned(pf->pdev))
1032 pci_disable_sriov(pf->pdev);
1033 else
1034 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1035
1036 msleep(20); /* let any messages in transit get finished up */
1037
1038 /* free up VF resources */
1039 tmp = pf->num_alloc_vfs;
1040 pf->num_alloc_vfs = 0;
1041 for (i = 0; i < tmp; i++) {
1042 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
1043 i40e_free_vf_res(&pf->vf[i]);
1044 /* disable qp mappings */
1045 i40e_disable_vf_mappings(&pf->vf[i]);
1046 }
1047
1048 kfree(pf->vf);
1049 pf->vf = NULL;
1050
1051 /* This check is for when the driver is unloaded while VFs are
1052 * assigned. Setting the number of VFs to 0 through sysfs is caught
1053 * before this function ever gets called.
1054 */
1055 if (!pci_vfs_assigned(pf->pdev)) {
1056 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1057 * work correctly when SR-IOV gets re-enabled.
1058 */
1059 for (vf_id = 0; vf_id < tmp; vf_id++) {
1060 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1061 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1062 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1063 }
1064 }
1065 clear_bit(__I40E_VF_DISABLE, &pf->state);
1066 }
1067
1068 #ifdef CONFIG_PCI_IOV
1069 /**
1070 * i40e_alloc_vfs
1071 * @pf: pointer to the PF structure
1072 * @num_alloc_vfs: number of VFs to allocate
1073 *
1074 * allocate VF resources
1075 **/
1076 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1077 {
1078 struct i40e_vf *vfs;
1079 int i, ret = 0;
1080
1081 /* Disable interrupt 0 so we don't try to handle the VFLR. */
1082 i40e_irq_dynamic_disable_icr0(pf);
1083
1084 /* Check to see if we're just allocating resources for extant VFs */
1085 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1086 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1087 if (ret) {
1088 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1089 pf->num_alloc_vfs = 0;
1090 goto err_iov;
1091 }
1092 }
1093 i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1094 /* allocate memory */
1095 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1096 if (!vfs) {
1097 ret = -ENOMEM;
1098 goto err_alloc;
1099 }
1100 pf->vf = vfs;
1101
1102 /* apply default profile */
1103 for (i = 0; i < num_alloc_vfs; i++) {
1104 vfs[i].pf = pf;
1105 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1106 vfs[i].vf_id = i;
1107
1108 /* assign default capabilities */
1109 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1110 vfs[i].spoofchk = true;
1111 /* VF resources get allocated during reset */
1112 i40e_reset_vf(&vfs[i], false);
1113
1114 }
1115 pf->num_alloc_vfs = num_alloc_vfs;
1116
1117 err_alloc:
1118 if (ret)
1119 i40e_free_vfs(pf);
1120 err_iov:
1121 /* Re-enable interrupt 0. */
1122 i40e_irq_dynamic_enable_icr0(pf, false);
1123 return ret;
1124 }
1125
1126 #endif
1127 /**
1128 * i40e_pci_sriov_enable
1129 * @pdev: pointer to a pci_dev structure
1130 * @num_vfs: number of VFs to allocate
1131 *
1132 * Enable or change the number of VFs
1133 **/
1134 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1135 {
1136 #ifdef CONFIG_PCI_IOV
1137 struct i40e_pf *pf = pci_get_drvdata(pdev);
1138 int pre_existing_vfs = pci_num_vf(pdev);
1139 int err = 0;
1140
1141 if (test_bit(__I40E_TESTING, &pf->state)) {
1142 dev_warn(&pdev->dev,
1143 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1144 err = -EPERM;
1145 goto err_out;
1146 }
1147
1148 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1149 i40e_free_vfs(pf);
1150 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1151 goto out;
1152
1153 if (num_vfs > pf->num_req_vfs) {
1154 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1155 num_vfs, pf->num_req_vfs);
1156 err = -EPERM;
1157 goto err_out;
1158 }
1159
1160 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1161 err = i40e_alloc_vfs(pf, num_vfs);
1162 if (err) {
1163 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1164 goto err_out;
1165 }
1166
1167 out:
1168 return num_vfs;
1169
1170 err_out:
1171 return err;
1172 #endif
1173 return 0;
1174 }
1175
1176 /**
1177 * i40e_pci_sriov_configure
1178 * @pdev: pointer to a pci_dev structure
1179 * @num_vfs: number of VFs to allocate
1180 *
1181 * Enable or change the number of VFs. Called when the user updates the number
1182 * of VFs in sysfs.
1183 **/
1184 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1185 {
1186 struct i40e_pf *pf = pci_get_drvdata(pdev);
1187
1188 if (num_vfs) {
1189 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1190 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1191 i40e_do_reset_safe(pf,
1192 BIT_ULL(__I40E_PF_RESET_REQUESTED));
1193 }
1194 return i40e_pci_sriov_enable(pdev, num_vfs);
1195 }
1196
1197 if (!pci_vfs_assigned(pf->pdev)) {
1198 i40e_free_vfs(pf);
1199 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1200 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
1201 } else {
1202 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1203 return -EINVAL;
1204 }
1205 return 0;
1206 }
1207
1208 /***********************virtual channel routines******************/
1209
1210 /**
1211 * i40e_vc_send_msg_to_vf
1212 * @vf: pointer to the VF info
1213 * @v_opcode: virtual channel opcode
1214 * @v_retval: virtual channel return value
1215 * @msg: pointer to the msg buffer
1216 * @msglen: msg length
1217 *
1218 * send msg to VF
1219 **/
1220 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1221 u32 v_retval, u8 *msg, u16 msglen)
1222 {
1223 struct i40e_pf *pf;
1224 struct i40e_hw *hw;
1225 int abs_vf_id;
1226 i40e_status aq_ret;
1227
1228 /* validate the request */
1229 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1230 return -EINVAL;
1231
1232 pf = vf->pf;
1233 hw = &pf->hw;
1234 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1235
1236 /* single place to detect unsuccessful return values */
1237 if (v_retval) {
1238 vf->num_invalid_msgs++;
1239 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n",
1240 vf->vf_id, v_opcode, v_retval);
1241 if (vf->num_invalid_msgs >
1242 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1243 dev_err(&pf->pdev->dev,
1244 "Number of invalid messages exceeded for VF %d\n",
1245 vf->vf_id);
1246 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1247 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1248 }
1249 } else {
1250 vf->num_valid_msgs++;
1251 /* reset the invalid counter, if a valid message is received. */
1252 vf->num_invalid_msgs = 0;
1253 }
1254
1255 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1256 msg, msglen, NULL);
1257 if (aq_ret) {
1258 dev_info(&pf->pdev->dev,
1259 "Unable to send the message to VF %d aq_err %d\n",
1260 vf->vf_id, pf->hw.aq.asq_last_status);
1261 return -EIO;
1262 }
1263
1264 return 0;
1265 }
1266
1267 /**
1268 * i40e_vc_send_resp_to_vf
1269 * @vf: pointer to the VF info
1270 * @opcode: operation code
1271 * @retval: return value
1272 *
1273 * send resp msg to VF
1274 **/
1275 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1276 enum i40e_virtchnl_ops opcode,
1277 i40e_status retval)
1278 {
1279 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1280 }
1281
1282 /**
1283 * i40e_vc_get_version_msg
1284 * @vf: pointer to the VF info
1285 *
1286 * called from the VF to request the API version used by the PF
1287 **/
1288 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1289 {
1290 struct i40e_virtchnl_version_info info = {
1291 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1292 };
1293
1294 vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg;
1295 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1296 if (VF_IS_V10(vf))
1297 info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1298 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1299 I40E_SUCCESS, (u8 *)&info,
1300 sizeof(struct
1301 i40e_virtchnl_version_info));
1302 }
1303
1304 /**
1305 * i40e_vc_get_vf_resources_msg
1306 * @vf: pointer to the VF info
1307 * @msg: pointer to the msg buffer
1308 * @msglen: msg length
1309 *
1310 * called from the VF to request its resources
1311 **/
1312 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1313 {
1314 struct i40e_virtchnl_vf_resource *vfres = NULL;
1315 struct i40e_pf *pf = vf->pf;
1316 i40e_status aq_ret = 0;
1317 struct i40e_vsi *vsi;
1318 int num_vsis = 1;
1319 int len = 0;
1320 int ret;
1321
1322 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1323 aq_ret = I40E_ERR_PARAM;
1324 goto err;
1325 }
1326
1327 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1328 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1329
1330 vfres = kzalloc(len, GFP_KERNEL);
1331 if (!vfres) {
1332 aq_ret = I40E_ERR_NO_MEMORY;
1333 len = 0;
1334 goto err;
1335 }
1336 if (VF_IS_V11(vf))
1337 vf->driver_caps = *(u32 *)msg;
1338 else
1339 vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
1340 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
1341 I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1342
1343 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1344 vsi = pf->vsi[vf->lan_vsi_idx];
1345 if (!vsi->info.pvid)
1346 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1347
1348 if (i40e_vf_client_capable(pf, vf->vf_id, I40E_CLIENT_IWARP) &&
1349 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_IWARP)) {
1350 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_IWARP;
1351 set_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states);
1352 }
1353
1354 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF) {
1355 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_PF;
1356 } else {
1357 if ((pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) &&
1358 (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ))
1359 vfres->vf_offload_flags |=
1360 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1361 else
1362 vfres->vf_offload_flags |=
1363 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG;
1364 }
1365
1366 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
1367 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
1368 vfres->vf_offload_flags |=
1369 I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
1370 }
1371
1372 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
1373 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
1374 dev_err(&pf->pdev->dev,
1375 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
1376 vf->vf_id);
1377 ret = I40E_ERR_PARAM;
1378 goto err;
1379 }
1380 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1381 }
1382
1383 if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) {
1384 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1385 vfres->vf_offload_flags |=
1386 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
1387 }
1388
1389 vfres->num_vsis = num_vsis;
1390 vfres->num_queue_pairs = vf->num_queue_pairs;
1391 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1392 vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
1393 vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
1394
1395 if (vf->lan_vsi_idx) {
1396 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
1397 vfres->vsi_res[0].vsi_type = I40E_VSI_SRIOV;
1398 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
1399 /* VFs only use TC 0 */
1400 vfres->vsi_res[0].qset_handle
1401 = le16_to_cpu(vsi->info.qs_handle[0]);
1402 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
1403 vf->default_lan_addr.addr);
1404 }
1405 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1406
1407 err:
1408 /* send the response back to the VF */
1409 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1410 aq_ret, (u8 *)vfres, len);
1411
1412 kfree(vfres);
1413 return ret;
1414 }
1415
1416 /**
1417 * i40e_vc_reset_vf_msg
1418 * @vf: pointer to the VF info
1419 * @msg: pointer to the msg buffer
1420 * @msglen: msg length
1421 *
1422 * called from the VF to reset itself,
1423 * unlike other virtchnl messages, PF driver
1424 * doesn't send the response back to the VF
1425 **/
1426 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1427 {
1428 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1429 i40e_reset_vf(vf, false);
1430 }
1431
1432 /**
1433 * i40e_getnum_vf_vsi_vlan_filters
1434 * @vsi: pointer to the vsi
1435 *
1436 * called to get the number of VLANs offloaded on this VF
1437 **/
1438 static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1439 {
1440 struct i40e_mac_filter *f;
1441 int num_vlans = 0;
1442
1443 list_for_each_entry(f, &vsi->mac_filter_list, list) {
1444 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
1445 num_vlans++;
1446 }
1447
1448 return num_vlans;
1449 }
1450
1451 /**
1452 * i40e_vc_config_promiscuous_mode_msg
1453 * @vf: pointer to the VF info
1454 * @msg: pointer to the msg buffer
1455 * @msglen: msg length
1456 *
1457 * called from the VF to configure the promiscuous mode of
1458 * VF vsis
1459 **/
1460 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1461 u8 *msg, u16 msglen)
1462 {
1463 struct i40e_virtchnl_promisc_info *info =
1464 (struct i40e_virtchnl_promisc_info *)msg;
1465 struct i40e_pf *pf = vf->pf;
1466 struct i40e_hw *hw = &pf->hw;
1467 struct i40e_mac_filter *f;
1468 i40e_status aq_ret = 0;
1469 bool allmulti = false;
1470 struct i40e_vsi *vsi;
1471 bool alluni = false;
1472 int aq_err = 0;
1473
1474 vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1475 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1476 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
1477 aq_ret = I40E_ERR_PARAM;
1478 goto error_param;
1479 }
1480 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
1481 dev_err(&pf->pdev->dev,
1482 "Unprivileged VF %d is attempting to configure promiscuous mode\n",
1483 vf->vf_id);
1484 /* Lie to the VF on purpose. */
1485 aq_ret = 0;
1486 goto error_param;
1487 }
1488 /* Multicast promiscuous handling*/
1489 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1490 allmulti = true;
1491
1492 if (vf->port_vlan_id) {
1493 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, vsi->seid,
1494 allmulti,
1495 vf->port_vlan_id,
1496 NULL);
1497 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1498 list_for_each_entry(f, &vsi->mac_filter_list, list) {
1499 if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1500 continue;
1501 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw,
1502 vsi->seid,
1503 allmulti,
1504 f->vlan,
1505 NULL);
1506 aq_err = pf->hw.aq.asq_last_status;
1507 if (aq_ret) {
1508 dev_err(&pf->pdev->dev,
1509 "Could not add VLAN %d to multicast promiscuous domain err %s aq_err %s\n",
1510 f->vlan,
1511 i40e_stat_str(&pf->hw, aq_ret),
1512 i40e_aq_str(&pf->hw, aq_err));
1513 break;
1514 }
1515 }
1516 } else {
1517 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
1518 allmulti, NULL);
1519 aq_err = pf->hw.aq.asq_last_status;
1520 if (aq_ret) {
1521 dev_err(&pf->pdev->dev,
1522 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
1523 vf->vf_id,
1524 i40e_stat_str(&pf->hw, aq_ret),
1525 i40e_aq_str(&pf->hw, aq_err));
1526 goto error_param_int;
1527 }
1528 }
1529
1530 if (!aq_ret) {
1531 dev_info(&pf->pdev->dev,
1532 "VF %d successfully set multicast promiscuous mode\n",
1533 vf->vf_id);
1534 if (allmulti)
1535 set_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states);
1536 else
1537 clear_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states);
1538 }
1539
1540 if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC)
1541 alluni = true;
1542 if (vf->port_vlan_id) {
1543 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, vsi->seid,
1544 alluni,
1545 vf->port_vlan_id,
1546 NULL);
1547 } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1548 list_for_each_entry(f, &vsi->mac_filter_list, list) {
1549 aq_ret = 0;
1550 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) {
1551 aq_ret =
1552 i40e_aq_set_vsi_uc_promisc_on_vlan(hw,
1553 vsi->seid,
1554 alluni,
1555 f->vlan,
1556 NULL);
1557 aq_err = pf->hw.aq.asq_last_status;
1558 }
1559 if (aq_ret)
1560 dev_err(&pf->pdev->dev,
1561 "Could not add VLAN %d to Unicast promiscuous domain err %s aq_err %s\n",
1562 f->vlan,
1563 i40e_stat_str(&pf->hw, aq_ret),
1564 i40e_aq_str(&pf->hw, aq_err));
1565 }
1566 } else {
1567 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, vsi->seid,
1568 allmulti, NULL,
1569 true);
1570 aq_err = pf->hw.aq.asq_last_status;
1571 if (aq_ret)
1572 dev_err(&pf->pdev->dev,
1573 "VF %d failed to set unicast promiscuous mode %8.8x err %s aq_err %s\n",
1574 vf->vf_id, info->flags,
1575 i40e_stat_str(&pf->hw, aq_ret),
1576 i40e_aq_str(&pf->hw, aq_err));
1577 }
1578
1579 error_param_int:
1580 if (!aq_ret) {
1581 dev_info(&pf->pdev->dev,
1582 "VF %d successfully set unicast promiscuous mode\n",
1583 vf->vf_id);
1584 if (alluni)
1585 set_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states);
1586 else
1587 clear_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states);
1588 }
1589
1590 error_param:
1591 /* send the response to the VF */
1592 return i40e_vc_send_resp_to_vf(vf,
1593 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1594 aq_ret);
1595 }
1596
1597 /**
1598 * i40e_vc_config_queues_msg
1599 * @vf: pointer to the VF info
1600 * @msg: pointer to the msg buffer
1601 * @msglen: msg length
1602 *
1603 * called from the VF to configure the rx/tx
1604 * queues
1605 **/
1606 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1607 {
1608 struct i40e_virtchnl_vsi_queue_config_info *qci =
1609 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1610 struct i40e_virtchnl_queue_pair_info *qpi;
1611 struct i40e_pf *pf = vf->pf;
1612 u16 vsi_id, vsi_queue_id;
1613 i40e_status aq_ret = 0;
1614 int i;
1615
1616 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1617 aq_ret = I40E_ERR_PARAM;
1618 goto error_param;
1619 }
1620
1621 vsi_id = qci->vsi_id;
1622 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1623 aq_ret = I40E_ERR_PARAM;
1624 goto error_param;
1625 }
1626 for (i = 0; i < qci->num_queue_pairs; i++) {
1627 qpi = &qci->qpair[i];
1628 vsi_queue_id = qpi->txq.queue_id;
1629 if ((qpi->txq.vsi_id != vsi_id) ||
1630 (qpi->rxq.vsi_id != vsi_id) ||
1631 (qpi->rxq.queue_id != vsi_queue_id) ||
1632 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1633 aq_ret = I40E_ERR_PARAM;
1634 goto error_param;
1635 }
1636
1637 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1638 &qpi->rxq) ||
1639 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1640 &qpi->txq)) {
1641 aq_ret = I40E_ERR_PARAM;
1642 goto error_param;
1643 }
1644 }
1645 /* set vsi num_queue_pairs in use to num configured by VF */
1646 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1647
1648 error_param:
1649 /* send the response to the VF */
1650 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1651 aq_ret);
1652 }
1653
1654 /**
1655 * i40e_vc_config_irq_map_msg
1656 * @vf: pointer to the VF info
1657 * @msg: pointer to the msg buffer
1658 * @msglen: msg length
1659 *
1660 * called from the VF to configure the irq to
1661 * queue map
1662 **/
1663 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1664 {
1665 struct i40e_virtchnl_irq_map_info *irqmap_info =
1666 (struct i40e_virtchnl_irq_map_info *)msg;
1667 struct i40e_virtchnl_vector_map *map;
1668 u16 vsi_id, vsi_queue_id, vector_id;
1669 i40e_status aq_ret = 0;
1670 unsigned long tempmap;
1671 int i;
1672
1673 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1674 aq_ret = I40E_ERR_PARAM;
1675 goto error_param;
1676 }
1677
1678 for (i = 0; i < irqmap_info->num_vectors; i++) {
1679 map = &irqmap_info->vecmap[i];
1680
1681 vector_id = map->vector_id;
1682 vsi_id = map->vsi_id;
1683 /* validate msg params */
1684 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1685 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1686 aq_ret = I40E_ERR_PARAM;
1687 goto error_param;
1688 }
1689
1690 /* lookout for the invalid queue index */
1691 tempmap = map->rxq_map;
1692 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1693 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1694 vsi_queue_id)) {
1695 aq_ret = I40E_ERR_PARAM;
1696 goto error_param;
1697 }
1698 }
1699
1700 tempmap = map->txq_map;
1701 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1702 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1703 vsi_queue_id)) {
1704 aq_ret = I40E_ERR_PARAM;
1705 goto error_param;
1706 }
1707 }
1708
1709 i40e_config_irq_link_list(vf, vsi_id, map);
1710 }
1711 error_param:
1712 /* send the response to the VF */
1713 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1714 aq_ret);
1715 }
1716
1717 /**
1718 * i40e_vc_enable_queues_msg
1719 * @vf: pointer to the VF info
1720 * @msg: pointer to the msg buffer
1721 * @msglen: msg length
1722 *
1723 * called from the VF to enable all or specific queue(s)
1724 **/
1725 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1726 {
1727 struct i40e_virtchnl_queue_select *vqs =
1728 (struct i40e_virtchnl_queue_select *)msg;
1729 struct i40e_pf *pf = vf->pf;
1730 u16 vsi_id = vqs->vsi_id;
1731 i40e_status aq_ret = 0;
1732
1733 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1734 aq_ret = I40E_ERR_PARAM;
1735 goto error_param;
1736 }
1737
1738 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1739 aq_ret = I40E_ERR_PARAM;
1740 goto error_param;
1741 }
1742
1743 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1744 aq_ret = I40E_ERR_PARAM;
1745 goto error_param;
1746 }
1747
1748 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true))
1749 aq_ret = I40E_ERR_TIMEOUT;
1750 error_param:
1751 /* send the response to the VF */
1752 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1753 aq_ret);
1754 }
1755
1756 /**
1757 * i40e_vc_disable_queues_msg
1758 * @vf: pointer to the VF info
1759 * @msg: pointer to the msg buffer
1760 * @msglen: msg length
1761 *
1762 * called from the VF to disable all or specific
1763 * queue(s)
1764 **/
1765 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1766 {
1767 struct i40e_virtchnl_queue_select *vqs =
1768 (struct i40e_virtchnl_queue_select *)msg;
1769 struct i40e_pf *pf = vf->pf;
1770 i40e_status aq_ret = 0;
1771
1772 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1773 aq_ret = I40E_ERR_PARAM;
1774 goto error_param;
1775 }
1776
1777 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1778 aq_ret = I40E_ERR_PARAM;
1779 goto error_param;
1780 }
1781
1782 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1783 aq_ret = I40E_ERR_PARAM;
1784 goto error_param;
1785 }
1786
1787 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false))
1788 aq_ret = I40E_ERR_TIMEOUT;
1789
1790 error_param:
1791 /* send the response to the VF */
1792 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1793 aq_ret);
1794 }
1795
1796 /**
1797 * i40e_vc_get_stats_msg
1798 * @vf: pointer to the VF info
1799 * @msg: pointer to the msg buffer
1800 * @msglen: msg length
1801 *
1802 * called from the VF to get vsi stats
1803 **/
1804 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1805 {
1806 struct i40e_virtchnl_queue_select *vqs =
1807 (struct i40e_virtchnl_queue_select *)msg;
1808 struct i40e_pf *pf = vf->pf;
1809 struct i40e_eth_stats stats;
1810 i40e_status aq_ret = 0;
1811 struct i40e_vsi *vsi;
1812
1813 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1814
1815 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1816 aq_ret = I40E_ERR_PARAM;
1817 goto error_param;
1818 }
1819
1820 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1821 aq_ret = I40E_ERR_PARAM;
1822 goto error_param;
1823 }
1824
1825 vsi = pf->vsi[vf->lan_vsi_idx];
1826 if (!vsi) {
1827 aq_ret = I40E_ERR_PARAM;
1828 goto error_param;
1829 }
1830 i40e_update_eth_stats(vsi);
1831 stats = vsi->eth_stats;
1832
1833 error_param:
1834 /* send the response back to the VF */
1835 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1836 (u8 *)&stats, sizeof(stats));
1837 }
1838
1839 /* If the VF is not trusted restrict the number of MAC/VLAN it can program */
1840 #define I40E_VC_MAX_MAC_ADDR_PER_VF 8
1841 #define I40E_VC_MAX_VLAN_PER_VF 8
1842
1843 /**
1844 * i40e_check_vf_permission
1845 * @vf: pointer to the VF info
1846 * @macaddr: pointer to the MAC Address being checked
1847 *
1848 * Check if the VF has permission to add or delete unicast MAC address
1849 * filters and return error code -EPERM if not. Then check if the
1850 * address filter requested is broadcast or zero and if so return
1851 * an invalid MAC address error code.
1852 **/
1853 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1854 {
1855 struct i40e_pf *pf = vf->pf;
1856 int ret = 0;
1857
1858 if (is_broadcast_ether_addr(macaddr) ||
1859 is_zero_ether_addr(macaddr)) {
1860 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1861 ret = I40E_ERR_INVALID_MAC_ADDR;
1862 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1863 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
1864 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1865 /* If the host VMM administrator has set the VF MAC address
1866 * administratively via the ndo_set_vf_mac command then deny
1867 * permission to the VF to add or delete unicast MAC addresses.
1868 * Unless the VF is privileged and then it can do whatever.
1869 * The VF may request to set the MAC address filter already
1870 * assigned to it so do not return an error in that case.
1871 */
1872 dev_err(&pf->pdev->dev,
1873 "VF attempting to override administratively set MAC address, reload the VF driver to resume normal operation\n");
1874 ret = -EPERM;
1875 } else if ((vf->num_mac >= I40E_VC_MAX_MAC_ADDR_PER_VF) &&
1876 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
1877 dev_err(&pf->pdev->dev,
1878 "VF is not trusted, switch the VF to trusted to add more functionality\n");
1879 ret = -EPERM;
1880 }
1881 return ret;
1882 }
1883
1884 /**
1885 * i40e_vc_add_mac_addr_msg
1886 * @vf: pointer to the VF info
1887 * @msg: pointer to the msg buffer
1888 * @msglen: msg length
1889 *
1890 * add guest mac address filter
1891 **/
1892 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1893 {
1894 struct i40e_virtchnl_ether_addr_list *al =
1895 (struct i40e_virtchnl_ether_addr_list *)msg;
1896 struct i40e_pf *pf = vf->pf;
1897 struct i40e_vsi *vsi = NULL;
1898 u16 vsi_id = al->vsi_id;
1899 i40e_status ret = 0;
1900 int i;
1901
1902 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1903 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1904 ret = I40E_ERR_PARAM;
1905 goto error_param;
1906 }
1907
1908 for (i = 0; i < al->num_elements; i++) {
1909 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1910 if (ret)
1911 goto error_param;
1912 }
1913 vsi = pf->vsi[vf->lan_vsi_idx];
1914
1915 /* Lock once, because all function inside for loop accesses VSI's
1916 * MAC filter list which needs to be protected using same lock.
1917 */
1918 spin_lock_bh(&vsi->mac_filter_list_lock);
1919
1920 /* add new addresses to the list */
1921 for (i = 0; i < al->num_elements; i++) {
1922 struct i40e_mac_filter *f;
1923
1924 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1925 if (!f) {
1926 if (i40e_is_vsi_in_vlan(vsi))
1927 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1928 true, false);
1929 else
1930 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1931 true, false);
1932 }
1933
1934 if (!f) {
1935 dev_err(&pf->pdev->dev,
1936 "Unable to add MAC filter %pM for VF %d\n",
1937 al->list[i].addr, vf->vf_id);
1938 ret = I40E_ERR_PARAM;
1939 spin_unlock_bh(&vsi->mac_filter_list_lock);
1940 goto error_param;
1941 } else {
1942 vf->num_mac++;
1943 }
1944 }
1945 spin_unlock_bh(&vsi->mac_filter_list_lock);
1946
1947 /* program the updated filter list */
1948 ret = i40e_sync_vsi_filters(vsi);
1949 if (ret)
1950 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
1951 vf->vf_id, ret);
1952
1953 error_param:
1954 /* send the response to the VF */
1955 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1956 ret);
1957 }
1958
1959 /**
1960 * i40e_vc_del_mac_addr_msg
1961 * @vf: pointer to the VF info
1962 * @msg: pointer to the msg buffer
1963 * @msglen: msg length
1964 *
1965 * remove guest mac address filter
1966 **/
1967 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1968 {
1969 struct i40e_virtchnl_ether_addr_list *al =
1970 (struct i40e_virtchnl_ether_addr_list *)msg;
1971 struct i40e_pf *pf = vf->pf;
1972 struct i40e_vsi *vsi = NULL;
1973 u16 vsi_id = al->vsi_id;
1974 i40e_status ret = 0;
1975 int i;
1976
1977 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1978 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1979 ret = I40E_ERR_PARAM;
1980 goto error_param;
1981 }
1982
1983 for (i = 0; i < al->num_elements; i++) {
1984 if (is_broadcast_ether_addr(al->list[i].addr) ||
1985 is_zero_ether_addr(al->list[i].addr)) {
1986 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
1987 al->list[i].addr, vf->vf_id);
1988 ret = I40E_ERR_INVALID_MAC_ADDR;
1989 goto error_param;
1990 }
1991 }
1992 vsi = pf->vsi[vf->lan_vsi_idx];
1993
1994 spin_lock_bh(&vsi->mac_filter_list_lock);
1995 /* delete addresses from the list */
1996 for (i = 0; i < al->num_elements; i++)
1997 if (i40e_del_mac_all_vlan(vsi, al->list[i].addr, true, false)) {
1998 ret = I40E_ERR_INVALID_MAC_ADDR;
1999 spin_unlock_bh(&vsi->mac_filter_list_lock);
2000 goto error_param;
2001 } else {
2002 vf->num_mac--;
2003 }
2004
2005 spin_unlock_bh(&vsi->mac_filter_list_lock);
2006
2007 /* program the updated filter list */
2008 ret = i40e_sync_vsi_filters(vsi);
2009 if (ret)
2010 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2011 vf->vf_id, ret);
2012
2013 error_param:
2014 /* send the response to the VF */
2015 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
2016 ret);
2017 }
2018
2019 /**
2020 * i40e_vc_add_vlan_msg
2021 * @vf: pointer to the VF info
2022 * @msg: pointer to the msg buffer
2023 * @msglen: msg length
2024 *
2025 * program guest vlan id
2026 **/
2027 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2028 {
2029 struct i40e_virtchnl_vlan_filter_list *vfl =
2030 (struct i40e_virtchnl_vlan_filter_list *)msg;
2031 struct i40e_pf *pf = vf->pf;
2032 struct i40e_vsi *vsi = NULL;
2033 u16 vsi_id = vfl->vsi_id;
2034 i40e_status aq_ret = 0;
2035 int i;
2036
2037 if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
2038 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2039 dev_err(&pf->pdev->dev,
2040 "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
2041 goto error_param;
2042 }
2043 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2044 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2045 aq_ret = I40E_ERR_PARAM;
2046 goto error_param;
2047 }
2048
2049 for (i = 0; i < vfl->num_elements; i++) {
2050 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2051 aq_ret = I40E_ERR_PARAM;
2052 dev_err(&pf->pdev->dev,
2053 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
2054 goto error_param;
2055 }
2056 }
2057 vsi = pf->vsi[vf->lan_vsi_idx];
2058 if (vsi->info.pvid) {
2059 aq_ret = I40E_ERR_PARAM;
2060 goto error_param;
2061 }
2062
2063 i40e_vlan_stripping_enable(vsi);
2064 for (i = 0; i < vfl->num_elements; i++) {
2065 /* add new VLAN filter */
2066 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
2067 if (!ret)
2068 vf->num_vlan++;
2069
2070 if (test_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states))
2071 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2072 true,
2073 vfl->vlan_id[i],
2074 NULL);
2075 if (test_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states))
2076 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2077 true,
2078 vfl->vlan_id[i],
2079 NULL);
2080
2081 if (ret)
2082 dev_err(&pf->pdev->dev,
2083 "Unable to add VLAN filter %d for VF %d, error %d\n",
2084 vfl->vlan_id[i], vf->vf_id, ret);
2085 }
2086
2087 error_param:
2088 /* send the response to the VF */
2089 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
2090 }
2091
2092 /**
2093 * i40e_vc_remove_vlan_msg
2094 * @vf: pointer to the VF info
2095 * @msg: pointer to the msg buffer
2096 * @msglen: msg length
2097 *
2098 * remove programmed guest vlan id
2099 **/
2100 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2101 {
2102 struct i40e_virtchnl_vlan_filter_list *vfl =
2103 (struct i40e_virtchnl_vlan_filter_list *)msg;
2104 struct i40e_pf *pf = vf->pf;
2105 struct i40e_vsi *vsi = NULL;
2106 u16 vsi_id = vfl->vsi_id;
2107 i40e_status aq_ret = 0;
2108 int i;
2109
2110 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2111 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
2112 aq_ret = I40E_ERR_PARAM;
2113 goto error_param;
2114 }
2115
2116 for (i = 0; i < vfl->num_elements; i++) {
2117 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2118 aq_ret = I40E_ERR_PARAM;
2119 goto error_param;
2120 }
2121 }
2122
2123 vsi = pf->vsi[vf->lan_vsi_idx];
2124 if (vsi->info.pvid) {
2125 aq_ret = I40E_ERR_PARAM;
2126 goto error_param;
2127 }
2128
2129 for (i = 0; i < vfl->num_elements; i++) {
2130 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
2131 if (!ret)
2132 vf->num_vlan--;
2133
2134 if (test_bit(I40E_VF_STAT_UC_PROMISC, &vf->vf_states))
2135 i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2136 false,
2137 vfl->vlan_id[i],
2138 NULL);
2139 if (test_bit(I40E_VF_STAT_MC_PROMISC, &vf->vf_states))
2140 i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2141 false,
2142 vfl->vlan_id[i],
2143 NULL);
2144
2145 if (ret)
2146 dev_err(&pf->pdev->dev,
2147 "Unable to delete VLAN filter %d for VF %d, error %d\n",
2148 vfl->vlan_id[i], vf->vf_id, ret);
2149 }
2150
2151 error_param:
2152 /* send the response to the VF */
2153 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
2154 }
2155
2156 /**
2157 * i40e_vc_iwarp_msg
2158 * @vf: pointer to the VF info
2159 * @msg: pointer to the msg buffer
2160 * @msglen: msg length
2161 *
2162 * called from the VF for the iwarp msgs
2163 **/
2164 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2165 {
2166 struct i40e_pf *pf = vf->pf;
2167 int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
2168 i40e_status aq_ret = 0;
2169
2170 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2171 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) {
2172 aq_ret = I40E_ERR_PARAM;
2173 goto error_param;
2174 }
2175
2176 i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
2177 msg, msglen);
2178
2179 error_param:
2180 /* send the response to the VF */
2181 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_IWARP,
2182 aq_ret);
2183 }
2184
2185 /**
2186 * i40e_vc_iwarp_qvmap_msg
2187 * @vf: pointer to the VF info
2188 * @msg: pointer to the msg buffer
2189 * @msglen: msg length
2190 * @config: config qvmap or release it
2191 *
2192 * called from the VF for the iwarp msgs
2193 **/
2194 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, u16 msglen,
2195 bool config)
2196 {
2197 struct i40e_virtchnl_iwarp_qvlist_info *qvlist_info =
2198 (struct i40e_virtchnl_iwarp_qvlist_info *)msg;
2199 i40e_status aq_ret = 0;
2200
2201 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2202 !test_bit(I40E_VF_STAT_IWARPENA, &vf->vf_states)) {
2203 aq_ret = I40E_ERR_PARAM;
2204 goto error_param;
2205 }
2206
2207 if (config) {
2208 if (i40e_config_iwarp_qvlist(vf, qvlist_info))
2209 aq_ret = I40E_ERR_PARAM;
2210 } else {
2211 i40e_release_iwarp_qvlist(vf);
2212 }
2213
2214 error_param:
2215 /* send the response to the VF */
2216 return i40e_vc_send_resp_to_vf(vf,
2217 config ? I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP :
2218 I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP,
2219 aq_ret);
2220 }
2221
2222 /**
2223 * i40e_vc_config_rss_key
2224 * @vf: pointer to the VF info
2225 * @msg: pointer to the msg buffer
2226 * @msglen: msg length
2227 *
2228 * Configure the VF's RSS key
2229 **/
2230 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg, u16 msglen)
2231 {
2232 struct i40e_virtchnl_rss_key *vrk =
2233 (struct i40e_virtchnl_rss_key *)msg;
2234 struct i40e_pf *pf = vf->pf;
2235 struct i40e_vsi *vsi = NULL;
2236 u16 vsi_id = vrk->vsi_id;
2237 i40e_status aq_ret = 0;
2238
2239 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2240 !i40e_vc_isvalid_vsi_id(vf, vsi_id) ||
2241 (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) {
2242 aq_ret = I40E_ERR_PARAM;
2243 goto err;
2244 }
2245
2246 vsi = pf->vsi[vf->lan_vsi_idx];
2247 aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
2248 err:
2249 /* send the response to the VF */
2250 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_KEY,
2251 aq_ret);
2252 }
2253
2254 /**
2255 * i40e_vc_config_rss_lut
2256 * @vf: pointer to the VF info
2257 * @msg: pointer to the msg buffer
2258 * @msglen: msg length
2259 *
2260 * Configure the VF's RSS LUT
2261 **/
2262 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg, u16 msglen)
2263 {
2264 struct i40e_virtchnl_rss_lut *vrl =
2265 (struct i40e_virtchnl_rss_lut *)msg;
2266 struct i40e_pf *pf = vf->pf;
2267 struct i40e_vsi *vsi = NULL;
2268 u16 vsi_id = vrl->vsi_id;
2269 i40e_status aq_ret = 0;
2270
2271 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
2272 !i40e_vc_isvalid_vsi_id(vf, vsi_id) ||
2273 (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) {
2274 aq_ret = I40E_ERR_PARAM;
2275 goto err;
2276 }
2277
2278 vsi = pf->vsi[vf->lan_vsi_idx];
2279 aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
2280 /* send the response to the VF */
2281 err:
2282 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_RSS_LUT,
2283 aq_ret);
2284 }
2285
2286 /**
2287 * i40e_vc_get_rss_hena
2288 * @vf: pointer to the VF info
2289 * @msg: pointer to the msg buffer
2290 * @msglen: msg length
2291 *
2292 * Return the RSS HENA bits allowed by the hardware
2293 **/
2294 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen)
2295 {
2296 struct i40e_virtchnl_rss_hena *vrh = NULL;
2297 struct i40e_pf *pf = vf->pf;
2298 i40e_status aq_ret = 0;
2299 int len = 0;
2300
2301 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
2302 aq_ret = I40E_ERR_PARAM;
2303 goto err;
2304 }
2305 len = sizeof(struct i40e_virtchnl_rss_hena);
2306
2307 vrh = kzalloc(len, GFP_KERNEL);
2308 if (!vrh) {
2309 aq_ret = I40E_ERR_NO_MEMORY;
2310 len = 0;
2311 goto err;
2312 }
2313 vrh->hena = i40e_pf_get_default_rss_hena(pf);
2314 err:
2315 /* send the response back to the VF */
2316 aq_ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS,
2317 aq_ret, (u8 *)vrh, len);
2318 return aq_ret;
2319 }
2320
2321 /**
2322 * i40e_vc_set_rss_hena
2323 * @vf: pointer to the VF info
2324 * @msg: pointer to the msg buffer
2325 * @msglen: msg length
2326 *
2327 * Set the RSS HENA bits for the VF
2328 **/
2329 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg, u16 msglen)
2330 {
2331 struct i40e_virtchnl_rss_hena *vrh =
2332 (struct i40e_virtchnl_rss_hena *)msg;
2333 struct i40e_pf *pf = vf->pf;
2334 struct i40e_hw *hw = &pf->hw;
2335 i40e_status aq_ret = 0;
2336
2337 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
2338 aq_ret = I40E_ERR_PARAM;
2339 goto err;
2340 }
2341 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);
2342 i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
2343 (u32)(vrh->hena >> 32));
2344
2345 /* send the response to the VF */
2346 err:
2347 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_SET_RSS_HENA,
2348 aq_ret);
2349 }
2350
2351 /**
2352 * i40e_vc_validate_vf_msg
2353 * @vf: pointer to the VF info
2354 * @msg: pointer to the msg buffer
2355 * @msglen: msg length
2356 * @msghndl: msg handle
2357 *
2358 * validate msg
2359 **/
2360 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
2361 u32 v_retval, u8 *msg, u16 msglen)
2362 {
2363 bool err_msg_format = false;
2364 int valid_len = 0;
2365
2366 /* Check if VF is disabled. */
2367 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
2368 return I40E_ERR_PARAM;
2369
2370 /* Validate message length. */
2371 switch (v_opcode) {
2372 case I40E_VIRTCHNL_OP_VERSION:
2373 valid_len = sizeof(struct i40e_virtchnl_version_info);
2374 break;
2375 case I40E_VIRTCHNL_OP_RESET_VF:
2376 break;
2377 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
2378 if (VF_IS_V11(vf))
2379 valid_len = sizeof(u32);
2380 break;
2381 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
2382 valid_len = sizeof(struct i40e_virtchnl_txq_info);
2383 break;
2384 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
2385 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
2386 break;
2387 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
2388 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
2389 if (msglen >= valid_len) {
2390 struct i40e_virtchnl_vsi_queue_config_info *vqc =
2391 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
2392 valid_len += (vqc->num_queue_pairs *
2393 sizeof(struct
2394 i40e_virtchnl_queue_pair_info));
2395 if (vqc->num_queue_pairs == 0)
2396 err_msg_format = true;
2397 }
2398 break;
2399 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
2400 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
2401 if (msglen >= valid_len) {
2402 struct i40e_virtchnl_irq_map_info *vimi =
2403 (struct i40e_virtchnl_irq_map_info *)msg;
2404 valid_len += (vimi->num_vectors *
2405 sizeof(struct i40e_virtchnl_vector_map));
2406 if (vimi->num_vectors == 0)
2407 err_msg_format = true;
2408 }
2409 break;
2410 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
2411 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
2412 valid_len = sizeof(struct i40e_virtchnl_queue_select);
2413 break;
2414 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
2415 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
2416 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
2417 if (msglen >= valid_len) {
2418 struct i40e_virtchnl_ether_addr_list *veal =
2419 (struct i40e_virtchnl_ether_addr_list *)msg;
2420 valid_len += veal->num_elements *
2421 sizeof(struct i40e_virtchnl_ether_addr);
2422 if (veal->num_elements == 0)
2423 err_msg_format = true;
2424 }
2425 break;
2426 case I40E_VIRTCHNL_OP_ADD_VLAN:
2427 case I40E_VIRTCHNL_OP_DEL_VLAN:
2428 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
2429 if (msglen >= valid_len) {
2430 struct i40e_virtchnl_vlan_filter_list *vfl =
2431 (struct i40e_virtchnl_vlan_filter_list *)msg;
2432 valid_len += vfl->num_elements * sizeof(u16);
2433 if (vfl->num_elements == 0)
2434 err_msg_format = true;
2435 }
2436 break;
2437 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2438 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
2439 break;
2440 case I40E_VIRTCHNL_OP_GET_STATS:
2441 valid_len = sizeof(struct i40e_virtchnl_queue_select);
2442 break;
2443 case I40E_VIRTCHNL_OP_IWARP:
2444 /* These messages are opaque to us and will be validated in
2445 * the RDMA client code. We just need to check for nonzero
2446 * length. The firmware will enforce max length restrictions.
2447 */
2448 if (msglen)
2449 valid_len = msglen;
2450 else
2451 err_msg_format = true;
2452 break;
2453 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
2454 valid_len = 0;
2455 break;
2456 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
2457 valid_len = sizeof(struct i40e_virtchnl_iwarp_qvlist_info);
2458 if (msglen >= valid_len) {
2459 struct i40e_virtchnl_iwarp_qvlist_info *qv =
2460 (struct i40e_virtchnl_iwarp_qvlist_info *)msg;
2461 if (qv->num_vectors == 0) {
2462 err_msg_format = true;
2463 break;
2464 }
2465 valid_len += ((qv->num_vectors - 1) *
2466 sizeof(struct i40e_virtchnl_iwarp_qv_info));
2467 }
2468 break;
2469 case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY:
2470 valid_len = sizeof(struct i40e_virtchnl_rss_key);
2471 if (msglen >= valid_len) {
2472 struct i40e_virtchnl_rss_key *vrk =
2473 (struct i40e_virtchnl_rss_key *)msg;
2474 if (vrk->key_len != I40E_HKEY_ARRAY_SIZE) {
2475 err_msg_format = true;
2476 break;
2477 }
2478 valid_len += vrk->key_len - 1;
2479 }
2480 break;
2481 case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT:
2482 valid_len = sizeof(struct i40e_virtchnl_rss_lut);
2483 if (msglen >= valid_len) {
2484 struct i40e_virtchnl_rss_lut *vrl =
2485 (struct i40e_virtchnl_rss_lut *)msg;
2486 if (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE) {
2487 err_msg_format = true;
2488 break;
2489 }
2490 valid_len += vrl->lut_entries - 1;
2491 }
2492 break;
2493 case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS:
2494 break;
2495 case I40E_VIRTCHNL_OP_SET_RSS_HENA:
2496 valid_len = sizeof(struct i40e_virtchnl_rss_hena);
2497 break;
2498 /* These are always errors coming from the VF. */
2499 case I40E_VIRTCHNL_OP_EVENT:
2500 case I40E_VIRTCHNL_OP_UNKNOWN:
2501 default:
2502 return -EPERM;
2503 }
2504 /* few more checks */
2505 if ((valid_len != msglen) || (err_msg_format)) {
2506 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
2507 return -EINVAL;
2508 } else {
2509 return 0;
2510 }
2511 }
2512
2513 /**
2514 * i40e_vc_process_vf_msg
2515 * @pf: pointer to the PF structure
2516 * @vf_id: source VF id
2517 * @msg: pointer to the msg buffer
2518 * @msglen: msg length
2519 * @msghndl: msg handle
2520 *
2521 * called from the common aeq/arq handler to
2522 * process request from VF
2523 **/
2524 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
2525 u32 v_retval, u8 *msg, u16 msglen)
2526 {
2527 struct i40e_hw *hw = &pf->hw;
2528 int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
2529 struct i40e_vf *vf;
2530 int ret;
2531
2532 pf->vf_aq_requests++;
2533 if (local_vf_id >= pf->num_alloc_vfs)
2534 return -EINVAL;
2535 vf = &(pf->vf[local_vf_id]);
2536 /* perform basic checks on the msg */
2537 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
2538
2539 if (ret) {
2540 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
2541 local_vf_id, v_opcode, msglen);
2542 return ret;
2543 }
2544
2545 switch (v_opcode) {
2546 case I40E_VIRTCHNL_OP_VERSION:
2547 ret = i40e_vc_get_version_msg(vf, msg);
2548 break;
2549 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
2550 ret = i40e_vc_get_vf_resources_msg(vf, msg);
2551 break;
2552 case I40E_VIRTCHNL_OP_RESET_VF:
2553 i40e_vc_reset_vf_msg(vf);
2554 ret = 0;
2555 break;
2556 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
2557 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
2558 break;
2559 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
2560 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
2561 break;
2562 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
2563 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
2564 break;
2565 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
2566 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
2567 i40e_vc_notify_vf_link_state(vf);
2568 break;
2569 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
2570 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
2571 break;
2572 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
2573 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
2574 break;
2575 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
2576 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
2577 break;
2578 case I40E_VIRTCHNL_OP_ADD_VLAN:
2579 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
2580 break;
2581 case I40E_VIRTCHNL_OP_DEL_VLAN:
2582 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
2583 break;
2584 case I40E_VIRTCHNL_OP_GET_STATS:
2585 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
2586 break;
2587 case I40E_VIRTCHNL_OP_IWARP:
2588 ret = i40e_vc_iwarp_msg(vf, msg, msglen);
2589 break;
2590 case I40E_VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
2591 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, true);
2592 break;
2593 case I40E_VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
2594 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, msglen, false);
2595 break;
2596 case I40E_VIRTCHNL_OP_CONFIG_RSS_KEY:
2597 ret = i40e_vc_config_rss_key(vf, msg, msglen);
2598 break;
2599 case I40E_VIRTCHNL_OP_CONFIG_RSS_LUT:
2600 ret = i40e_vc_config_rss_lut(vf, msg, msglen);
2601 break;
2602 case I40E_VIRTCHNL_OP_GET_RSS_HENA_CAPS:
2603 ret = i40e_vc_get_rss_hena(vf, msg, msglen);
2604 break;
2605 case I40E_VIRTCHNL_OP_SET_RSS_HENA:
2606 ret = i40e_vc_set_rss_hena(vf, msg, msglen);
2607 break;
2608
2609 case I40E_VIRTCHNL_OP_UNKNOWN:
2610 default:
2611 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
2612 v_opcode, local_vf_id);
2613 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
2614 I40E_ERR_NOT_IMPLEMENTED);
2615 break;
2616 }
2617
2618 return ret;
2619 }
2620
2621 /**
2622 * i40e_vc_process_vflr_event
2623 * @pf: pointer to the PF structure
2624 *
2625 * called from the vlfr irq handler to
2626 * free up VF resources and state variables
2627 **/
2628 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
2629 {
2630 struct i40e_hw *hw = &pf->hw;
2631 u32 reg, reg_idx, bit_idx;
2632 struct i40e_vf *vf;
2633 int vf_id;
2634
2635 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
2636 return 0;
2637
2638 /* Re-enable the VFLR interrupt cause here, before looking for which
2639 * VF got reset. Otherwise, if another VF gets a reset while the
2640 * first one is being processed, that interrupt will be lost, and
2641 * that VF will be stuck in reset forever.
2642 */
2643 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
2644 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
2645 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
2646 i40e_flush(hw);
2647
2648 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
2649 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
2650 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
2651 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
2652 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
2653 vf = &pf->vf[vf_id];
2654 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
2655 if (reg & BIT(bit_idx))
2656 /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
2657 i40e_reset_vf(vf, true);
2658 }
2659
2660 return 0;
2661 }
2662
2663 /**
2664 * i40e_ndo_set_vf_mac
2665 * @netdev: network interface device structure
2666 * @vf_id: VF identifier
2667 * @mac: mac address
2668 *
2669 * program VF mac address
2670 **/
2671 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
2672 {
2673 struct i40e_netdev_priv *np = netdev_priv(netdev);
2674 struct i40e_vsi *vsi = np->vsi;
2675 struct i40e_pf *pf = vsi->back;
2676 struct i40e_mac_filter *f;
2677 struct i40e_vf *vf;
2678 int ret = 0;
2679
2680 /* validate the request */
2681 if (vf_id >= pf->num_alloc_vfs) {
2682 dev_err(&pf->pdev->dev,
2683 "Invalid VF Identifier %d\n", vf_id);
2684 ret = -EINVAL;
2685 goto error_param;
2686 }
2687
2688 vf = &(pf->vf[vf_id]);
2689 vsi = pf->vsi[vf->lan_vsi_idx];
2690 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2691 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2692 vf_id);
2693 ret = -EAGAIN;
2694 goto error_param;
2695 }
2696
2697 if (is_multicast_ether_addr(mac)) {
2698 dev_err(&pf->pdev->dev,
2699 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
2700 ret = -EINVAL;
2701 goto error_param;
2702 }
2703
2704 /* Lock once because below invoked function add/del_filter requires
2705 * mac_filter_list_lock to be held
2706 */
2707 spin_lock_bh(&vsi->mac_filter_list_lock);
2708
2709 /* delete the temporary mac address */
2710 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
2711 i40e_del_filter(vsi, vf->default_lan_addr.addr,
2712 vf->port_vlan_id ? vf->port_vlan_id : -1,
2713 true, false);
2714
2715 /* Delete all the filters for this VSI - we're going to kill it
2716 * anyway.
2717 */
2718 list_for_each_entry(f, &vsi->mac_filter_list, list)
2719 i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);
2720
2721 spin_unlock_bh(&vsi->mac_filter_list_lock);
2722
2723 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2724 /* program mac filter */
2725 if (i40e_sync_vsi_filters(vsi)) {
2726 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2727 ret = -EIO;
2728 goto error_param;
2729 }
2730 ether_addr_copy(vf->default_lan_addr.addr, mac);
2731 vf->pf_set_mac = true;
2732 /* Force the VF driver stop so it has to reload with new MAC address */
2733 i40e_vc_disable_vf(pf, vf);
2734 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2735
2736 error_param:
2737 return ret;
2738 }
2739
2740 /**
2741 * i40e_ndo_set_vf_port_vlan
2742 * @netdev: network interface device structure
2743 * @vf_id: VF identifier
2744 * @vlan_id: mac address
2745 * @qos: priority setting
2746 *
2747 * program VF vlan id and/or qos
2748 **/
2749 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2750 int vf_id, u16 vlan_id, u8 qos)
2751 {
2752 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
2753 struct i40e_netdev_priv *np = netdev_priv(netdev);
2754 struct i40e_pf *pf = np->vsi->back;
2755 bool is_vsi_in_vlan = false;
2756 struct i40e_vsi *vsi;
2757 struct i40e_vf *vf;
2758 int ret = 0;
2759
2760 /* validate the request */
2761 if (vf_id >= pf->num_alloc_vfs) {
2762 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2763 ret = -EINVAL;
2764 goto error_pvid;
2765 }
2766
2767 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2768 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2769 ret = -EINVAL;
2770 goto error_pvid;
2771 }
2772
2773 vf = &(pf->vf[vf_id]);
2774 vsi = pf->vsi[vf->lan_vsi_idx];
2775 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2776 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2777 vf_id);
2778 ret = -EAGAIN;
2779 goto error_pvid;
2780 }
2781
2782 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
2783 /* duplicate request, so just return success */
2784 goto error_pvid;
2785
2786 spin_lock_bh(&vsi->mac_filter_list_lock);
2787 is_vsi_in_vlan = i40e_is_vsi_in_vlan(vsi);
2788 spin_unlock_bh(&vsi->mac_filter_list_lock);
2789
2790 if (le16_to_cpu(vsi->info.pvid) == 0 && is_vsi_in_vlan) {
2791 dev_err(&pf->pdev->dev,
2792 "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",
2793 vf_id);
2794 /* Administrator Error - knock the VF offline until he does
2795 * the right thing by reconfiguring his network correctly
2796 * and then reloading the VF driver.
2797 */
2798 i40e_vc_disable_vf(pf, vf);
2799 /* During reset the VF got a new VSI, so refresh the pointer. */
2800 vsi = pf->vsi[vf->lan_vsi_idx];
2801 }
2802
2803 /* Check for condition where there was already a port VLAN ID
2804 * filter set and now it is being deleted by setting it to zero.
2805 * Additionally check for the condition where there was a port
2806 * VLAN but now there is a new and different port VLAN being set.
2807 * Before deleting all the old VLAN filters we must add new ones
2808 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2809 * MAC addresses deleted.
2810 */
2811 if ((!(vlan_id || qos) ||
2812 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
2813 vsi->info.pvid)
2814 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
2815
2816 if (vsi->info.pvid) {
2817 /* kill old VLAN */
2818 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2819 VLAN_VID_MASK));
2820 if (ret) {
2821 dev_info(&vsi->back->pdev->dev,
2822 "remove VLAN failed, ret=%d, aq_err=%d\n",
2823 ret, pf->hw.aq.asq_last_status);
2824 }
2825 }
2826 if (vlan_id || qos)
2827 ret = i40e_vsi_add_pvid(vsi, vlanprio);
2828 else
2829 i40e_vsi_remove_pvid(vsi);
2830
2831 if (vlan_id) {
2832 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2833 vlan_id, qos, vf_id);
2834
2835 /* add new VLAN filter */
2836 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2837 if (ret) {
2838 dev_info(&vsi->back->pdev->dev,
2839 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2840 vsi->back->hw.aq.asq_last_status);
2841 goto error_pvid;
2842 }
2843 /* Kill non-vlan MAC filters - ignore error return since
2844 * there might not be any non-vlan MAC filters.
2845 */
2846 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
2847 }
2848
2849 if (ret) {
2850 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2851 goto error_pvid;
2852 }
2853 /* The Port VLAN needs to be saved across resets the same as the
2854 * default LAN MAC address.
2855 */
2856 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2857 ret = 0;
2858
2859 error_pvid:
2860 return ret;
2861 }
2862
2863 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
2864 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
2865 /**
2866 * i40e_ndo_set_vf_bw
2867 * @netdev: network interface device structure
2868 * @vf_id: VF identifier
2869 * @tx_rate: Tx rate
2870 *
2871 * configure VF Tx rate
2872 **/
2873 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
2874 int max_tx_rate)
2875 {
2876 struct i40e_netdev_priv *np = netdev_priv(netdev);
2877 struct i40e_pf *pf = np->vsi->back;
2878 struct i40e_vsi *vsi;
2879 struct i40e_vf *vf;
2880 int speed = 0;
2881 int ret = 0;
2882
2883 /* validate the request */
2884 if (vf_id >= pf->num_alloc_vfs) {
2885 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
2886 ret = -EINVAL;
2887 goto error;
2888 }
2889
2890 if (min_tx_rate) {
2891 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
2892 min_tx_rate, vf_id);
2893 return -EINVAL;
2894 }
2895
2896 vf = &(pf->vf[vf_id]);
2897 vsi = pf->vsi[vf->lan_vsi_idx];
2898 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2899 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2900 vf_id);
2901 ret = -EAGAIN;
2902 goto error;
2903 }
2904
2905 switch (pf->hw.phy.link_info.link_speed) {
2906 case I40E_LINK_SPEED_40GB:
2907 speed = 40000;
2908 break;
2909 case I40E_LINK_SPEED_20GB:
2910 speed = 20000;
2911 break;
2912 case I40E_LINK_SPEED_10GB:
2913 speed = 10000;
2914 break;
2915 case I40E_LINK_SPEED_1GB:
2916 speed = 1000;
2917 break;
2918 default:
2919 break;
2920 }
2921
2922 if (max_tx_rate > speed) {
2923 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.",
2924 max_tx_rate, vf->vf_id);
2925 ret = -EINVAL;
2926 goto error;
2927 }
2928
2929 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
2930 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
2931 max_tx_rate = 50;
2932 }
2933
2934 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
2935 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
2936 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
2937 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
2938 if (ret) {
2939 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
2940 ret);
2941 ret = -EIO;
2942 goto error;
2943 }
2944 vf->tx_rate = max_tx_rate;
2945 error:
2946 return ret;
2947 }
2948
2949 /**
2950 * i40e_ndo_get_vf_config
2951 * @netdev: network interface device structure
2952 * @vf_id: VF identifier
2953 * @ivi: VF configuration structure
2954 *
2955 * return VF configuration
2956 **/
2957 int i40e_ndo_get_vf_config(struct net_device *netdev,
2958 int vf_id, struct ifla_vf_info *ivi)
2959 {
2960 struct i40e_netdev_priv *np = netdev_priv(netdev);
2961 struct i40e_vsi *vsi = np->vsi;
2962 struct i40e_pf *pf = vsi->back;
2963 struct i40e_vf *vf;
2964 int ret = 0;
2965
2966 /* validate the request */
2967 if (vf_id >= pf->num_alloc_vfs) {
2968 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2969 ret = -EINVAL;
2970 goto error_param;
2971 }
2972
2973 vf = &(pf->vf[vf_id]);
2974 /* first vsi is always the LAN vsi */
2975 vsi = pf->vsi[vf->lan_vsi_idx];
2976 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2977 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2978 vf_id);
2979 ret = -EAGAIN;
2980 goto error_param;
2981 }
2982
2983 ivi->vf = vf_id;
2984
2985 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
2986
2987 ivi->max_tx_rate = vf->tx_rate;
2988 ivi->min_tx_rate = 0;
2989 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2990 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2991 I40E_VLAN_PRIORITY_SHIFT;
2992 if (vf->link_forced == false)
2993 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
2994 else if (vf->link_up == true)
2995 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
2996 else
2997 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
2998 ivi->spoofchk = vf->spoofchk;
2999 ret = 0;
3000
3001 error_param:
3002 return ret;
3003 }
3004
3005 /**
3006 * i40e_ndo_set_vf_link_state
3007 * @netdev: network interface device structure
3008 * @vf_id: VF identifier
3009 * @link: required link state
3010 *
3011 * Set the link state of a specified VF, regardless of physical link state
3012 **/
3013 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
3014 {
3015 struct i40e_netdev_priv *np = netdev_priv(netdev);
3016 struct i40e_pf *pf = np->vsi->back;
3017 struct i40e_virtchnl_pf_event pfe;
3018 struct i40e_hw *hw = &pf->hw;
3019 struct i40e_vf *vf;
3020 int abs_vf_id;
3021 int ret = 0;
3022
3023 /* validate the request */
3024 if (vf_id >= pf->num_alloc_vfs) {
3025 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3026 ret = -EINVAL;
3027 goto error_out;
3028 }
3029
3030 vf = &pf->vf[vf_id];
3031 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
3032
3033 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
3034 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
3035
3036 switch (link) {
3037 case IFLA_VF_LINK_STATE_AUTO:
3038 vf->link_forced = false;
3039 pfe.event_data.link_event.link_status =
3040 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
3041 pfe.event_data.link_event.link_speed =
3042 pf->hw.phy.link_info.link_speed;
3043 break;
3044 case IFLA_VF_LINK_STATE_ENABLE:
3045 vf->link_forced = true;
3046 vf->link_up = true;
3047 pfe.event_data.link_event.link_status = true;
3048 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
3049 break;
3050 case IFLA_VF_LINK_STATE_DISABLE:
3051 vf->link_forced = true;
3052 vf->link_up = false;
3053 pfe.event_data.link_event.link_status = false;
3054 pfe.event_data.link_event.link_speed = 0;
3055 break;
3056 default:
3057 ret = -EINVAL;
3058 goto error_out;
3059 }
3060 /* Notify the VF of its new link state */
3061 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
3062 0, (u8 *)&pfe, sizeof(pfe), NULL);
3063
3064 error_out:
3065 return ret;
3066 }
3067
3068 /**
3069 * i40e_ndo_set_vf_spoofchk
3070 * @netdev: network interface device structure
3071 * @vf_id: VF identifier
3072 * @enable: flag to enable or disable feature
3073 *
3074 * Enable or disable VF spoof checking
3075 **/
3076 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
3077 {
3078 struct i40e_netdev_priv *np = netdev_priv(netdev);
3079 struct i40e_vsi *vsi = np->vsi;
3080 struct i40e_pf *pf = vsi->back;
3081 struct i40e_vsi_context ctxt;
3082 struct i40e_hw *hw = &pf->hw;
3083 struct i40e_vf *vf;
3084 int ret = 0;
3085
3086 /* validate the request */
3087 if (vf_id >= pf->num_alloc_vfs) {
3088 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3089 ret = -EINVAL;
3090 goto out;
3091 }
3092
3093 vf = &(pf->vf[vf_id]);
3094 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
3095 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
3096 vf_id);
3097 ret = -EAGAIN;
3098 goto out;
3099 }
3100
3101 if (enable == vf->spoofchk)
3102 goto out;
3103
3104 vf->spoofchk = enable;
3105 memset(&ctxt, 0, sizeof(ctxt));
3106 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
3107 ctxt.pf_num = pf->hw.pf_id;
3108 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
3109 if (enable)
3110 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
3111 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
3112 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
3113 if (ret) {
3114 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
3115 ret);
3116 ret = -EIO;
3117 }
3118 out:
3119 return ret;
3120 }
3121
3122 /**
3123 * i40e_ndo_set_vf_trust
3124 * @netdev: network interface device structure of the pf
3125 * @vf_id: VF identifier
3126 * @setting: trust setting
3127 *
3128 * Enable or disable VF trust setting
3129 **/
3130 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
3131 {
3132 struct i40e_netdev_priv *np = netdev_priv(netdev);
3133 struct i40e_pf *pf = np->vsi->back;
3134 struct i40e_vf *vf;
3135 int ret = 0;
3136
3137 /* validate the request */
3138 if (vf_id >= pf->num_alloc_vfs) {
3139 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
3140 return -EINVAL;
3141 }
3142
3143 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3144 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
3145 return -EINVAL;
3146 }
3147
3148 vf = &pf->vf[vf_id];
3149
3150 if (!vf)
3151 return -EINVAL;
3152 if (setting == vf->trusted)
3153 goto out;
3154
3155 vf->trusted = setting;
3156 i40e_vc_notify_vf_reset(vf);
3157 i40e_reset_vf(vf, false);
3158 dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
3159 vf_id, setting ? "" : "un");
3160 out:
3161 return ret;
3162 }
Linux kernel - Deliverables
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