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