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i40e: retry call on timeout
[deliverable/linux.git] / drivers / net / ethernet / intel / i40e / i40e_virtchnl_pf.c
CommitLineData
5c3c48ac
JB		 1/*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 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 with
16 * this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * The full GNU General Public License is included in this distribution in
20 * the file called "COPYING".
21 *
22 * Contact Information:
23 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
25 *
26 ******************************************************************************/
27
28#include "i40e.h"
29
30/***********************misc routines*****************************/
31
32/**
33 * i40e_vc_isvalid_vsi_id
34 * @vf: pointer to the vf info
35 * @vsi_id: vf relative vsi id
36 *
37 * check for the valid vsi id
38 **/
39static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u8 vsi_id)
40{
41 struct i40e_pf *pf = vf->pf;
42
43 return pf->vsi[vsi_id]->vf_id == vf->vf_id;
44}
45
46/**
47 * i40e_vc_isvalid_queue_id
48 * @vf: pointer to the vf info
49 * @vsi_id: vsi id
50 * @qid: vsi relative queue id
51 *
52 * check for the valid queue id
53 **/
54static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u8 vsi_id,
55 u8 qid)
56{
57 struct i40e_pf *pf = vf->pf;
58
59 return qid < pf->vsi[vsi_id]->num_queue_pairs;
60}
61
62/**
63 * i40e_vc_isvalid_vector_id
64 * @vf: pointer to the vf info
65 * @vector_id: vf relative vector id
66 *
67 * check for the valid vector id
68 **/
69static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
70{
71 struct i40e_pf *pf = vf->pf;
72
54692b40 73 return vector_id <= pf->hw.func_caps.num_msix_vectors_vf;
5c3c48ac
JB		 74}
75
76/***********************vf resource mgmt routines*****************/
77
78/**
79 * i40e_vc_get_pf_queue_id
80 * @vf: pointer to the vf info
81 * @vsi_idx: index of VSI in PF struct
82 * @vsi_queue_id: vsi relative queue id
83 *
84 * return pf relative queue id
85 **/
86static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u8 vsi_idx,
87 u8 vsi_queue_id)
88{
89 struct i40e_pf *pf = vf->pf;
90 struct i40e_vsi *vsi = pf->vsi[vsi_idx];
91 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
92
93 if (le16_to_cpu(vsi->info.mapping_flags) &
94 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
95 pf_queue_id =
96 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
97 else
98 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
99 vsi_queue_id;
100
101 return pf_queue_id;
102}
103
104/**
105 * i40e_ctrl_vsi_tx_queue
106 * @vf: pointer to the vf info
107 * @vsi_idx: index of VSI in PF struct
108 * @vsi_queue_id: vsi relative queue index
109 * @ctrl: control flags
110 *
111 * enable/disable/enable check/disable check
112 **/
113static int i40e_ctrl_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_idx,
114 u16 vsi_queue_id,
115 enum i40e_queue_ctrl ctrl)
116{
117 struct i40e_pf *pf = vf->pf;
118 struct i40e_hw *hw = &pf->hw;
119 bool writeback = false;
120 u16 pf_queue_id;
121 int ret = 0;
122 u32 reg;
123
124 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
125 reg = rd32(hw, I40E_QTX_ENA(pf_queue_id));
126
127 switch (ctrl) {
128 case I40E_QUEUE_CTRL_ENABLE:
129 reg |= I40E_QTX_ENA_QENA_REQ_MASK;
130 writeback = true;
131 break;
132 case I40E_QUEUE_CTRL_ENABLECHECK:
133 ret = (reg & I40E_QTX_ENA_QENA_STAT_MASK) ? 0 : -EPERM;
134 break;
135 case I40E_QUEUE_CTRL_DISABLE:
136 reg &= ~I40E_QTX_ENA_QENA_REQ_MASK;
137 writeback = true;
138 break;
139 case I40E_QUEUE_CTRL_DISABLECHECK:
140 ret = (reg & I40E_QTX_ENA_QENA_STAT_MASK) ? -EPERM : 0;
141 break;
142 case I40E_QUEUE_CTRL_FASTDISABLE:
143 reg |= I40E_QTX_ENA_FAST_QDIS_MASK;
144 writeback = true;
145 break;
146 case I40E_QUEUE_CTRL_FASTDISABLECHECK:
147 ret = (reg & I40E_QTX_ENA_QENA_STAT_MASK) ? -EPERM : 0;
148 if (!ret) {
149 reg &= ~I40E_QTX_ENA_FAST_QDIS_MASK;
150 writeback = true;
151 }
152 break;
153 default:
154 ret = -EINVAL;
155 break;
156 }
157
158 if (writeback) {
159 wr32(hw, I40E_QTX_ENA(pf_queue_id), reg);
160 i40e_flush(hw);
161 }
162
163 return ret;
164}
165
166/**
167 * i40e_ctrl_vsi_rx_queue
168 * @vf: pointer to the vf info
169 * @vsi_idx: index of VSI in PF struct
170 * @vsi_queue_id: vsi relative queue index
171 * @ctrl: control flags
172 *
173 * enable/disable/enable check/disable check
174 **/
175static int i40e_ctrl_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_idx,
176 u16 vsi_queue_id,
177 enum i40e_queue_ctrl ctrl)
178{
179 struct i40e_pf *pf = vf->pf;
180 struct i40e_hw *hw = &pf->hw;
181 bool writeback = false;
182 u16 pf_queue_id;
183 int ret = 0;
184 u32 reg;
185
186 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
187 reg = rd32(hw, I40E_QRX_ENA(pf_queue_id));
188
189 switch (ctrl) {
190 case I40E_QUEUE_CTRL_ENABLE:
191 reg |= I40E_QRX_ENA_QENA_REQ_MASK;
192 writeback = true;
193 break;
194 case I40E_QUEUE_CTRL_ENABLECHECK:
195 ret = (reg & I40E_QRX_ENA_QENA_STAT_MASK) ? 0 : -EPERM;
196 break;
197 case I40E_QUEUE_CTRL_DISABLE:
198 reg &= ~I40E_QRX_ENA_QENA_REQ_MASK;
199 writeback = true;
200 break;
201 case I40E_QUEUE_CTRL_DISABLECHECK:
202 ret = (reg & I40E_QRX_ENA_QENA_STAT_MASK) ? -EPERM : 0;
203 break;
204 case I40E_QUEUE_CTRL_FASTDISABLE:
205 reg |= I40E_QRX_ENA_FAST_QDIS_MASK;
206 writeback = true;
207 break;
208 case I40E_QUEUE_CTRL_FASTDISABLECHECK:
209 ret = (reg & I40E_QRX_ENA_QENA_STAT_MASK) ? -EPERM : 0;
210 if (!ret) {
211 reg &= ~I40E_QRX_ENA_FAST_QDIS_MASK;
212 writeback = true;
213 }
214 break;
215 default:
216 ret = -EINVAL;
217 break;
218 }
219
220 if (writeback) {
221 wr32(hw, I40E_QRX_ENA(pf_queue_id), reg);
222 i40e_flush(hw);
223 }
224
225 return ret;
226}
227
228/**
229 * i40e_config_irq_link_list
230 * @vf: pointer to the vf info
231 * @vsi_idx: index of VSI in PF struct
232 * @vecmap: irq map info
233 *
234 * configure irq link list from the map
235 **/
236static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_idx,
237 struct i40e_virtchnl_vector_map *vecmap)
238{
239 unsigned long linklistmap = 0, tempmap;
240 struct i40e_pf *pf = vf->pf;
241 struct i40e_hw *hw = &pf->hw;
242 u16 vsi_queue_id, pf_queue_id;
243 enum i40e_queue_type qtype;
244 u16 next_q, vector_id;
245 u32 reg, reg_idx;
246 u16 itr_idx = 0;
247
248 vector_id = vecmap->vector_id;
249 /* setup the head */
250 if (0 == vector_id)
251 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
252 else
253 reg_idx = I40E_VPINT_LNKLSTN(
13c60b99 254 (pf->hw.func_caps.num_msix_vectors_vf
5c3c48ac
JB		 255 * vf->vf_id) + (vector_id - 1));
256
257 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
258 /* Special case - No queues mapped on this vector */
259 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
260 goto irq_list_done;
261 }
262 tempmap = vecmap->rxq_map;
263 vsi_queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
264 while (vsi_queue_id < I40E_MAX_VSI_QP) {
265 linklistmap |= (1 <<
266 (I40E_VIRTCHNL_SUPPORTED_QTYPES *
267 vsi_queue_id));
268 vsi_queue_id =
269 find_next_bit(&tempmap, I40E_MAX_VSI_QP, vsi_queue_id + 1);
270 }
271
272 tempmap = vecmap->txq_map;
273 vsi_queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
274 while (vsi_queue_id < I40E_MAX_VSI_QP) {
275 linklistmap |= (1 <<
276 (I40E_VIRTCHNL_SUPPORTED_QTYPES * vsi_queue_id
277 + 1));
278 vsi_queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
279 vsi_queue_id + 1);
280 }
281
282 next_q = find_first_bit(&linklistmap,
283 (I40E_MAX_VSI_QP *
284 I40E_VIRTCHNL_SUPPORTED_QTYPES));
285 vsi_queue_id = next_q/I40E_VIRTCHNL_SUPPORTED_QTYPES;
286 qtype = next_q%I40E_VIRTCHNL_SUPPORTED_QTYPES;
287 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
288 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
289
290 wr32(hw, reg_idx, reg);
291
292 while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
293 switch (qtype) {
294 case I40E_QUEUE_TYPE_RX:
295 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
296 itr_idx = vecmap->rxitr_idx;
297 break;
298 case I40E_QUEUE_TYPE_TX:
299 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
300 itr_idx = vecmap->txitr_idx;
301 break;
302 default:
303 break;
304 }
305
306 next_q = find_next_bit(&linklistmap,
307 (I40E_MAX_VSI_QP *
308 I40E_VIRTCHNL_SUPPORTED_QTYPES),
309 next_q + 1);
310 if (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
311 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
312 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
313 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx,
314 vsi_queue_id);
315 } else {
316 pf_queue_id = I40E_QUEUE_END_OF_LIST;
317 qtype = 0;
318 }
319
320 /* format for the RQCTL & TQCTL regs is same */
321 reg = (vector_id) |
322 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
323 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
324 (1 << I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
325 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
326 wr32(hw, reg_idx, reg);
327 }
328
329irq_list_done:
330 i40e_flush(hw);
331}
332
333/**
334 * i40e_config_vsi_tx_queue
335 * @vf: pointer to the vf info
336 * @vsi_idx: index of VSI in PF struct
337 * @vsi_queue_id: vsi relative queue index
338 * @info: config. info
339 *
340 * configure tx queue
341 **/
342static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_idx,
343 u16 vsi_queue_id,
344 struct i40e_virtchnl_txq_info *info)
345{
346 struct i40e_pf *pf = vf->pf;
347 struct i40e_hw *hw = &pf->hw;
348 struct i40e_hmc_obj_txq tx_ctx;
349 u16 pf_queue_id;
350 u32 qtx_ctl;
351 int ret = 0;
352
353 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
354
355 /* clear the context structure first */
356 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
357
358 /* only set the required fields */
359 tx_ctx.base = info->dma_ring_addr / 128;
360 tx_ctx.qlen = info->ring_len;
361 tx_ctx.rdylist = le16_to_cpu(pf->vsi[vsi_idx]->info.qs_handle[0]);
362 tx_ctx.rdylist_act = 0;
363
364 /* clear the context in the HMC */
365 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
366 if (ret) {
367 dev_err(&pf->pdev->dev,
368 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
369 pf_queue_id, ret);
370 ret = -ENOENT;
371 goto error_context;
372 }
373
374 /* set the context in the HMC */
375 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
376 if (ret) {
377 dev_err(&pf->pdev->dev,
378 "Failed to set VF LAN Tx queue context %d error: %d\n",
379 pf_queue_id, ret);
380 ret = -ENOENT;
381 goto error_context;
382 }
383
384 /* associate this queue with the PCI VF function */
385 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
13fd9774 386 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
5c3c48ac
JB		 387 & I40E_QTX_CTL_PF_INDX_MASK);
388 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
389 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
390 & I40E_QTX_CTL_VFVM_INDX_MASK);
391 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
392 i40e_flush(hw);
393
394error_context:
395 return ret;
396}
397
398/**
399 * i40e_config_vsi_rx_queue
400 * @vf: pointer to the vf info
401 * @vsi_idx: index of VSI in PF struct
402 * @vsi_queue_id: vsi relative queue index
403 * @info: config. info
404 *
405 * configure rx queue
406 **/
407static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_idx,
408 u16 vsi_queue_id,
409 struct i40e_virtchnl_rxq_info *info)
410{
411 struct i40e_pf *pf = vf->pf;
412 struct i40e_hw *hw = &pf->hw;
413 struct i40e_hmc_obj_rxq rx_ctx;
414 u16 pf_queue_id;
415 int ret = 0;
416
417 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
418
419 /* clear the context structure first */
420 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
421
422 /* only set the required fields */
423 rx_ctx.base = info->dma_ring_addr / 128;
424 rx_ctx.qlen = info->ring_len;
425
426 if (info->splithdr_enabled) {
427 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
428 I40E_RX_SPLIT_IP |
429 I40E_RX_SPLIT_TCP_UDP |
430 I40E_RX_SPLIT_SCTP;
431 /* header length validation */
432 if (info->hdr_size > ((2 * 1024) - 64)) {
433 ret = -EINVAL;
434 goto error_param;
435 }
436 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
437
438 /* set splitalways mode 10b */
439 rx_ctx.dtype = 0x2;
440 }
441
442 /* databuffer length validation */
443 if (info->databuffer_size > ((16 * 1024) - 128)) {
444 ret = -EINVAL;
445 goto error_param;
446 }
447 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
448
449 /* max pkt. length validation */
450 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
451 ret = -EINVAL;
452 goto error_param;
453 }
454 rx_ctx.rxmax = info->max_pkt_size;
455
456 /* enable 32bytes desc always */
457 rx_ctx.dsize = 1;
458
459 /* default values */
460 rx_ctx.tphrdesc_ena = 1;
461 rx_ctx.tphwdesc_ena = 1;
462 rx_ctx.tphdata_ena = 1;
463 rx_ctx.tphhead_ena = 1;
464 rx_ctx.lrxqthresh = 2;
465 rx_ctx.crcstrip = 1;
466
467 /* clear the context in the HMC */
468 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
469 if (ret) {
470 dev_err(&pf->pdev->dev,
471 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
472 pf_queue_id, ret);
473 ret = -ENOENT;
474 goto error_param;
475 }
476
477 /* set the context in the HMC */
478 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
479 if (ret) {
480 dev_err(&pf->pdev->dev,
481 "Failed to set VF LAN Rx queue context %d error: %d\n",
482 pf_queue_id, ret);
483 ret = -ENOENT;
484 goto error_param;
485 }
486
487error_param:
488 return ret;
489}
490
491/**
492 * i40e_alloc_vsi_res
493 * @vf: pointer to the vf info
494 * @type: type of VSI to allocate
495 *
496 * alloc vf vsi context & resources
497 **/
498static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
499{
500 struct i40e_mac_filter *f = NULL;
501 struct i40e_pf *pf = vf->pf;
502 struct i40e_hw *hw = &pf->hw;
503 struct i40e_vsi *vsi;
504 int ret = 0;
505
506 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
507
508 if (!vsi) {
509 dev_err(&pf->pdev->dev,
510 "add vsi failed for vf %d, aq_err %d\n",
511 vf->vf_id, pf->hw.aq.asq_last_status);
512 ret = -ENOENT;
513 goto error_alloc_vsi_res;
514 }
515 if (type == I40E_VSI_SRIOV) {
516 vf->lan_vsi_index = vsi->idx;
517 vf->lan_vsi_id = vsi->id;
518 dev_info(&pf->pdev->dev,
519 "LAN VSI index %d, VSI id %d\n",
520 vsi->idx, vsi->id);
521 f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
522 0, true, false);
523 }
524 if (!f) {
525 dev_err(&pf->pdev->dev, "Unable to add ucast filter\n");
526 ret = -ENOMEM;
527 goto error_alloc_vsi_res;
528 }
529
530 /* program mac filter */
531 ret = i40e_sync_vsi_filters(vsi);
532 if (ret) {
533 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
534 goto error_alloc_vsi_res;
535 }
536
537 /* accept bcast pkts. by default */
538 ret = i40e_aq_set_vsi_broadcast(hw, vsi->seid, true, NULL);
539 if (ret) {
540 dev_err(&pf->pdev->dev,
541 "set vsi bcast failed for vf %d, vsi %d, aq_err %d\n",
542 vf->vf_id, vsi->idx, pf->hw.aq.asq_last_status);
543 ret = -EINVAL;
544 }
545
546error_alloc_vsi_res:
547 return ret;
548}
549
550/**
551 * i40e_reset_vf
552 * @vf: pointer to the vf structure
553 * @flr: VFLR was issued or not
554 *
555 * reset the vf
556 **/
557int i40e_reset_vf(struct i40e_vf *vf, bool flr)
558{
559 int ret = -ENOENT;
560 struct i40e_pf *pf = vf->pf;
561 struct i40e_hw *hw = &pf->hw;
562 u32 reg, reg_idx, msix_vf;
563 bool rsd = false;
564 u16 pf_queue_id;
565 int i, j;
566
567 /* warn the VF */
568 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_INPROGRESS);
569
570 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
571
572 /* PF triggers VFR only when VF requests, in case of
573 * VFLR, HW triggers VFR
574 */
575 if (!flr) {
576 /* reset vf using VPGEN_VFRTRIG reg */
577 reg = I40E_VPGEN_VFRTRIG_VFSWR_MASK;
578 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
579 i40e_flush(hw);
580 }
581
582 /* poll VPGEN_VFRSTAT reg to make sure
583 * that reset is complete
584 */
585 for (i = 0; i < 4; i++) {
586 /* vf reset requires driver to first reset the
587 * vf & than poll the status register to make sure
588 * that the requested op was completed
589 * successfully
590 */
591 udelay(10);
592 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
593 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
594 rsd = true;
595 break;
596 }
597 }
598
599 if (!rsd)
600 dev_err(&pf->pdev->dev, "VF reset check timeout %d\n",
601 vf->vf_id);
602
603 /* fast disable qps */
604 for (j = 0; j < pf->vsi[vf->lan_vsi_index]->num_queue_pairs; j++) {
605 ret = i40e_ctrl_vsi_tx_queue(vf, vf->lan_vsi_index, j,
606 I40E_QUEUE_CTRL_FASTDISABLE);
607 ret = i40e_ctrl_vsi_rx_queue(vf, vf->lan_vsi_index, j,
608 I40E_QUEUE_CTRL_FASTDISABLE);
609 }
610
611 /* Queue enable/disable requires driver to
612 * first reset the vf & than poll the status register
613 * to make sure that the requested op was completed
614 * successfully
615 */
616 udelay(10);
617 for (j = 0; j < pf->vsi[vf->lan_vsi_index]->num_queue_pairs; j++) {
618 ret = i40e_ctrl_vsi_tx_queue(vf, vf->lan_vsi_index, j,
619 I40E_QUEUE_CTRL_FASTDISABLECHECK);
620 if (ret)
621 dev_info(&pf->pdev->dev,
622 "Queue control check failed on Tx queue %d of VSI %d VF %d\n",
623 vf->lan_vsi_index, j, vf->vf_id);
624 ret = i40e_ctrl_vsi_rx_queue(vf, vf->lan_vsi_index, j,
625 I40E_QUEUE_CTRL_FASTDISABLECHECK);
626 if (ret)
627 dev_info(&pf->pdev->dev,
628 "Queue control check failed on Rx queue %d of VSI %d VF %d\n",
629 vf->lan_vsi_index, j, vf->vf_id);
630 }
631
632 /* clear the irq settings */
633 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
634 for (i = 0; i < msix_vf; i++) {
635 /* format is same for both registers */
636 if (0 == i)
637 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
638 else
639 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
640 (vf->vf_id))
641 + (i - 1));
642 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
643 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
644 wr32(hw, reg_idx, reg);
645 i40e_flush(hw);
646 }
647 /* disable interrupts so the VF starts in a known state */
648 for (i = 0; i < msix_vf; i++) {
649 /* format is same for both registers */
650 if (0 == i)
651 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
652 else
653 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
654 (vf->vf_id))
655 + (i - 1));
656 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
657 i40e_flush(hw);
658 }
659
660 /* set the defaults for the rqctl & tqctl registers */
661 reg = (I40E_QINT_RQCTL_NEXTQ_INDX_MASK | I40E_QINT_RQCTL_ITR_INDX_MASK |
662 I40E_QINT_RQCTL_NEXTQ_TYPE_MASK);
663 for (j = 0; j < pf->vsi[vf->lan_vsi_index]->num_queue_pairs; j++) {
664 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index, j);
665 wr32(hw, I40E_QINT_RQCTL(pf_queue_id), reg);
666 wr32(hw, I40E_QINT_TQCTL(pf_queue_id), reg);
667 }
668
669 /* clear the reset bit in the VPGEN_VFRTRIG reg */
670 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
671 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
672 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
673 /* tell the VF the reset is done */
674 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
675 i40e_flush(hw);
676
677 return ret;
678}
679
680/**
681 * i40e_enable_vf_mappings
682 * @vf: pointer to the vf info
683 *
684 * enable vf mappings
685 **/
686static void i40e_enable_vf_mappings(struct i40e_vf *vf)
687{
688 struct i40e_pf *pf = vf->pf;
689 struct i40e_hw *hw = &pf->hw;
690 u32 reg, total_queue_pairs = 0;
691 int j;
692
693 /* Tell the hardware we're using noncontiguous mapping. HW requires
694 * that VF queues be mapped using this method, even when they are
695 * contiguous in real life
696 */
697 wr32(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
698 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
699
700 /* enable VF vplan_qtable mappings */
701 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
702 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
703
704 /* map PF queues to VF queues */
705 for (j = 0; j < pf->vsi[vf->lan_vsi_index]->num_queue_pairs; j++) {
706 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index, j);
707 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
708 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
709 total_queue_pairs++;
710 }
711
712 /* map PF queues to VSI */
713 for (j = 0; j < 7; j++) {
714 if (j * 2 >= pf->vsi[vf->lan_vsi_index]->num_queue_pairs) {
715 reg = 0x07FF07FF; /* unused */
716 } else {
717 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index,
718 j * 2);
719 reg = qid;
720 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index,
721 (j * 2) + 1);
722 reg |= qid << 16;
723 }
724 wr32(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), reg);
725 }
726
727 i40e_flush(hw);
728}
729
730/**
731 * i40e_disable_vf_mappings
732 * @vf: pointer to the vf info
733 *
734 * disable vf mappings
735 **/
736static void i40e_disable_vf_mappings(struct i40e_vf *vf)
737{
738 struct i40e_pf *pf = vf->pf;
739 struct i40e_hw *hw = &pf->hw;
740 int i;
741
742 /* disable qp mappings */
743 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
744 for (i = 0; i < I40E_MAX_VSI_QP; i++)
745 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
746 I40E_QUEUE_END_OF_LIST);
747 i40e_flush(hw);
748}
749
750/**
751 * i40e_free_vf_res
752 * @vf: pointer to the vf info
753 *
754 * free vf resources
755 **/
756static void i40e_free_vf_res(struct i40e_vf *vf)
757{
758 struct i40e_pf *pf = vf->pf;
759
760 /* free vsi & disconnect it from the parent uplink */
761 if (vf->lan_vsi_index) {
762 i40e_vsi_release(pf->vsi[vf->lan_vsi_index]);
763 vf->lan_vsi_index = 0;
764 vf->lan_vsi_id = 0;
765 }
766 /* reset some of the state varibles keeping
767 * track of the resources
768 */
769 vf->num_queue_pairs = 0;
770 vf->vf_states = 0;
771}
772
773/**
774 * i40e_alloc_vf_res
775 * @vf: pointer to the vf info
776 *
777 * allocate vf resources
778 **/
779static int i40e_alloc_vf_res(struct i40e_vf *vf)
780{
781 struct i40e_pf *pf = vf->pf;
782 int total_queue_pairs = 0;
783 int ret;
784
785 /* allocate hw vsi context & associated resources */
786 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
787 if (ret)
788 goto error_alloc;
789 total_queue_pairs += pf->vsi[vf->lan_vsi_index]->num_queue_pairs;
790 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
791
792 /* store the total qps number for the runtime
793 * vf req validation
794 */
795 vf->num_queue_pairs = total_queue_pairs;
796
797 /* vf is now completely initialized */
798 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
799
800error_alloc:
801 if (ret)
802 i40e_free_vf_res(vf);
803
804 return ret;
805}
806
807/**
808 * i40e_vfs_are_assigned
809 * @pf: pointer to the pf structure
810 *
811 * Determine if any VFs are assigned to VMs
812 **/
813static bool i40e_vfs_are_assigned(struct i40e_pf *pf)
814{
815 struct pci_dev *pdev = pf->pdev;
816 struct pci_dev *vfdev;
817
818 /* loop through all the VFs to see if we own any that are assigned */
819 vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, I40E_VF_DEVICE_ID , NULL);
820 while (vfdev) {
821 /* if we don't own it we don't care */
822 if (vfdev->is_virtfn && pci_physfn(vfdev) == pdev) {
823 /* if it is assigned we cannot release it */
824 if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
825 return true;
826 }
827
828 vfdev = pci_get_device(PCI_VENDOR_ID_INTEL,
829 I40E_VF_DEVICE_ID,
830 vfdev);
831 }
832
833 return false;
834}
835
836/**
837 * i40e_free_vfs
838 * @pf: pointer to the pf structure
839 *
840 * free vf resources
841 **/
842void i40e_free_vfs(struct i40e_pf *pf)
843{
844 struct i40e_hw *hw = &pf->hw;
845 int i;
846
847 if (!pf->vf)
848 return;
849
850 /* Disable interrupt 0 so we don't try to handle the VFLR. */
851 wr32(hw, I40E_PFINT_DYN_CTL0, 0);
852 i40e_flush(hw);
853
854 /* free up vf resources */
855 for (i = 0; i < pf->num_alloc_vfs; i++) {
856 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
857 i40e_free_vf_res(&pf->vf[i]);
858 /* disable qp mappings */
859 i40e_disable_vf_mappings(&pf->vf[i]);
860 }
861
862 kfree(pf->vf);
863 pf->vf = NULL;
864 pf->num_alloc_vfs = 0;
865
866 if (!i40e_vfs_are_assigned(pf))
867 pci_disable_sriov(pf->pdev);
868 else
869 dev_warn(&pf->pdev->dev,
870 "unable to disable SR-IOV because VFs are assigned.\n");
871
872 /* Re-enable interrupt 0. */
873 wr32(hw, I40E_PFINT_DYN_CTL0,
874 I40E_PFINT_DYN_CTL0_INTENA_MASK |
875 I40E_PFINT_DYN_CTL0_CLEARPBA_MASK |
876 (I40E_ITR_NONE << I40E_PFINT_DYN_CTL0_ITR_INDX_SHIFT));
877 i40e_flush(hw);
878}
879
880#ifdef CONFIG_PCI_IOV
881/**
882 * i40e_alloc_vfs
883 * @pf: pointer to the pf structure
884 * @num_alloc_vfs: number of vfs to allocate
885 *
886 * allocate vf resources
887 **/
888static int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
889{
890 struct i40e_vf *vfs;
891 int i, ret = 0;
892
893 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
894 if (ret) {
895 dev_err(&pf->pdev->dev,
896 "pci_enable_sriov failed with error %d!\n", ret);
897 pf->num_alloc_vfs = 0;
898 goto err_iov;
899 }
900
901 /* allocate memory */
902 vfs = kzalloc(num_alloc_vfs * sizeof(struct i40e_vf), GFP_KERNEL);
903 if (!vfs) {
904 ret = -ENOMEM;
905 goto err_alloc;
906 }
907
908 /* apply default profile */
909 for (i = 0; i < num_alloc_vfs; i++) {
910 vfs[i].pf = pf;
911 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
912 vfs[i].vf_id = i;
913
914 /* assign default capabilities */
915 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
916
917 ret = i40e_alloc_vf_res(&vfs[i]);
918 i40e_reset_vf(&vfs[i], true);
919 if (ret)
920 break;
921
922 /* enable vf vplan_qtable mappings */
923 i40e_enable_vf_mappings(&vfs[i]);
924 }
925 pf->vf = vfs;
926 pf->num_alloc_vfs = num_alloc_vfs;
927
928err_alloc:
929 if (ret)
930 i40e_free_vfs(pf);
931err_iov:
932 return ret;
933}
934
935#endif
936/**
937 * i40e_pci_sriov_enable
938 * @pdev: pointer to a pci_dev structure
939 * @num_vfs: number of vfs to allocate
940 *
941 * Enable or change the number of VFs
942 **/
943static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
944{
945#ifdef CONFIG_PCI_IOV
946 struct i40e_pf *pf = pci_get_drvdata(pdev);
947 int pre_existing_vfs = pci_num_vf(pdev);
948 int err = 0;
949
950 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
951 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
952 i40e_free_vfs(pf);
953 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
954 goto out;
955
956 if (num_vfs > pf->num_req_vfs) {
957 err = -EPERM;
958 goto err_out;
959 }
960
961 err = i40e_alloc_vfs(pf, num_vfs);
962 if (err) {
963 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
964 goto err_out;
965 }
966
967out:
968 return num_vfs;
969
970err_out:
971 return err;
972#endif
973 return 0;
974}
975
976/**
977 * i40e_pci_sriov_configure
978 * @pdev: pointer to a pci_dev structure
979 * @num_vfs: number of vfs to allocate
980 *
981 * Enable or change the number of VFs. Called when the user updates the number
982 * of VFs in sysfs.
983 **/
984int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
985{
986 struct i40e_pf *pf = pci_get_drvdata(pdev);
987
988 if (num_vfs)
989 return i40e_pci_sriov_enable(pdev, num_vfs);
990
991 i40e_free_vfs(pf);
992 return 0;
993}
994
995/***********************virtual channel routines******************/
996
997/**
998 * i40e_vc_send_msg_to_vf
999 * @vf: pointer to the vf info
1000 * @v_opcode: virtual channel opcode
1001 * @v_retval: virtual channel return value
1002 * @msg: pointer to the msg buffer
1003 * @msglen: msg length
1004 *
1005 * send msg to vf
1006 **/
1007static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1008 u32 v_retval, u8 *msg, u16 msglen)
1009{
1010 struct i40e_pf *pf = vf->pf;
1011 struct i40e_hw *hw = &pf->hw;
1012 i40e_status aq_ret;
1013
1014 /* single place to detect unsuccessful return values */
1015 if (v_retval) {
1016 vf->num_invalid_msgs++;
1017 dev_err(&pf->pdev->dev, "Failed opcode %d Error: %d\n",
1018 v_opcode, v_retval);
1019 if (vf->num_invalid_msgs >
1020 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1021 dev_err(&pf->pdev->dev,
1022 "Number of invalid messages exceeded for VF %d\n",
1023 vf->vf_id);
1024 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1025 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1026 }
1027 } else {
1028 vf->num_valid_msgs++;
1029 }
1030
1031 aq_ret = i40e_aq_send_msg_to_vf(hw, vf->vf_id, v_opcode, v_retval,
1032 msg, msglen, NULL);
1033 if (aq_ret) {
1034 dev_err(&pf->pdev->dev,
1035 "Unable to send the message to VF %d aq_err %d\n",
1036 vf->vf_id, pf->hw.aq.asq_last_status);
1037 return -EIO;
1038 }
1039
1040 return 0;
1041}
1042
1043/**
1044 * i40e_vc_send_resp_to_vf
1045 * @vf: pointer to the vf info
1046 * @opcode: operation code
1047 * @retval: return value
1048 *
1049 * send resp msg to vf
1050 **/
1051static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1052 enum i40e_virtchnl_ops opcode,
1053 i40e_status retval)
1054{
1055 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1056}
1057
1058/**
1059 * i40e_vc_get_version_msg
1060 * @vf: pointer to the vf info
1061 *
1062 * called from the vf to request the API version used by the PF
1063 **/
1064static int i40e_vc_get_version_msg(struct i40e_vf *vf)
1065{
1066 struct i40e_virtchnl_version_info info = {
1067 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1068 };
1069
1070 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1071 I40E_SUCCESS, (u8 *)&info,
1072 sizeof(struct
1073 i40e_virtchnl_version_info));
1074}
1075
1076/**
1077 * i40e_vc_get_vf_resources_msg
1078 * @vf: pointer to the vf info
1079 * @msg: pointer to the msg buffer
1080 * @msglen: msg length
1081 *
1082 * called from the vf to request its resources
1083 **/
1084static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf)
1085{
1086 struct i40e_virtchnl_vf_resource *vfres = NULL;
1087 struct i40e_pf *pf = vf->pf;
1088 i40e_status aq_ret = 0;
1089 struct i40e_vsi *vsi;
1090 int i = 0, len = 0;
1091 int num_vsis = 1;
1092 int ret;
1093
1094 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1095 aq_ret = I40E_ERR_PARAM;
1096 goto err;
1097 }
1098
1099 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1100 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1101
1102 vfres = kzalloc(len, GFP_KERNEL);
1103 if (!vfres) {
1104 aq_ret = I40E_ERR_NO_MEMORY;
1105 len = 0;
1106 goto err;
1107 }
1108
1109 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1110 vsi = pf->vsi[vf->lan_vsi_index];
1111 if (!vsi->info.pvid)
1112 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1113
1114 vfres->num_vsis = num_vsis;
1115 vfres->num_queue_pairs = vf->num_queue_pairs;
1116 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1117 if (vf->lan_vsi_index) {
1118 vfres->vsi_res[i].vsi_id = vf->lan_vsi_index;
1119 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1120 vfres->vsi_res[i].num_queue_pairs =
1121 pf->vsi[vf->lan_vsi_index]->num_queue_pairs;
1122 memcpy(vfres->vsi_res[i].default_mac_addr,
1123 vf->default_lan_addr.addr, ETH_ALEN);
1124 i++;
1125 }
1126 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1127
1128err:
1129 /* send the response back to the vf */
1130 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1131 aq_ret, (u8 *)vfres, len);
1132
1133 kfree(vfres);
1134 return ret;
1135}
1136
1137/**
1138 * i40e_vc_reset_vf_msg
1139 * @vf: pointer to the vf info
1140 * @msg: pointer to the msg buffer
1141 * @msglen: msg length
1142 *
1143 * called from the vf to reset itself,
1144 * unlike other virtchnl messages, pf driver
1145 * doesn't send the response back to the vf
1146 **/
1147static int i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1148{
1149 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1150 return -ENOENT;
1151
1152 return i40e_reset_vf(vf, false);
1153}
1154
1155/**
1156 * i40e_vc_config_promiscuous_mode_msg
1157 * @vf: pointer to the vf info
1158 * @msg: pointer to the msg buffer
1159 * @msglen: msg length
1160 *
1161 * called from the vf to configure the promiscuous mode of
1162 * vf vsis
1163 **/
1164static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1165 u8 *msg, u16 msglen)
1166{
1167 struct i40e_virtchnl_promisc_info *info =
1168 (struct i40e_virtchnl_promisc_info *)msg;
1169 struct i40e_pf *pf = vf->pf;
1170 struct i40e_hw *hw = &pf->hw;
1171 bool allmulti = false;
1172 bool promisc = false;
1173 i40e_status aq_ret;
1174
1175 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1176 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1177 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1178 (pf->vsi[info->vsi_id]->type != I40E_VSI_FCOE)) {
1179 aq_ret = I40E_ERR_PARAM;
1180 goto error_param;
1181 }
1182
1183 if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC)
1184 promisc = true;
1185 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, info->vsi_id,
1186 promisc, NULL);
1187 if (aq_ret)
1188 goto error_param;
1189
1190 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1191 allmulti = true;
1192 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, info->vsi_id,
1193 allmulti, NULL);
1194
1195error_param:
1196 /* send the response to the vf */
1197 return i40e_vc_send_resp_to_vf(vf,
1198 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1199 aq_ret);
1200}
1201
1202/**
1203 * i40e_vc_config_queues_msg
1204 * @vf: pointer to the vf info
1205 * @msg: pointer to the msg buffer
1206 * @msglen: msg length
1207 *
1208 * called from the vf to configure the rx/tx
1209 * queues
1210 **/
1211static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1212{
1213 struct i40e_virtchnl_vsi_queue_config_info *qci =
1214 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1215 struct i40e_virtchnl_queue_pair_info *qpi;
1216 u16 vsi_id, vsi_queue_id;
1217 i40e_status aq_ret = 0;
1218 int i;
1219
1220 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1221 aq_ret = I40E_ERR_PARAM;
1222 goto error_param;
1223 }
1224
1225 vsi_id = qci->vsi_id;
1226 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1227 aq_ret = I40E_ERR_PARAM;
1228 goto error_param;
1229 }
1230 for (i = 0; i < qci->num_queue_pairs; i++) {
1231 qpi = &qci->qpair[i];
1232 vsi_queue_id = qpi->txq.queue_id;
1233 if ((qpi->txq.vsi_id != vsi_id) ||
1234 (qpi->rxq.vsi_id != vsi_id) ||
1235 (qpi->rxq.queue_id != vsi_queue_id) ||
1236 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1237 aq_ret = I40E_ERR_PARAM;
1238 goto error_param;
1239 }
1240
1241 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1242 &qpi->rxq) ||
1243 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1244 &qpi->txq)) {
1245 aq_ret = I40E_ERR_PARAM;
1246 goto error_param;
1247 }
1248 }
1249
1250error_param:
1251 /* send the response to the vf */
1252 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1253 aq_ret);
1254}
1255
1256/**
1257 * i40e_vc_config_irq_map_msg
1258 * @vf: pointer to the vf info
1259 * @msg: pointer to the msg buffer
1260 * @msglen: msg length
1261 *
1262 * called from the vf to configure the irq to
1263 * queue map
1264 **/
1265static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1266{
1267 struct i40e_virtchnl_irq_map_info *irqmap_info =
1268 (struct i40e_virtchnl_irq_map_info *)msg;
1269 struct i40e_virtchnl_vector_map *map;
1270 u16 vsi_id, vsi_queue_id, vector_id;
1271 i40e_status aq_ret = 0;
1272 unsigned long tempmap;
1273 int i;
1274
1275 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1276 aq_ret = I40E_ERR_PARAM;
1277 goto error_param;
1278 }
1279
1280 for (i = 0; i < irqmap_info->num_vectors; i++) {
1281 map = &irqmap_info->vecmap[i];
1282
1283 vector_id = map->vector_id;
1284 vsi_id = map->vsi_id;
1285 /* validate msg params */
1286 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1287 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1288 aq_ret = I40E_ERR_PARAM;
1289 goto error_param;
1290 }
1291
1292 /* lookout for the invalid queue index */
1293 tempmap = map->rxq_map;
1294 vsi_queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
1295 while (vsi_queue_id < I40E_MAX_VSI_QP) {
1296 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1297 vsi_queue_id)) {
1298 aq_ret = I40E_ERR_PARAM;
1299 goto error_param;
1300 }
1301 vsi_queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
1302 vsi_queue_id + 1);
1303 }
1304
1305 tempmap = map->txq_map;
1306 vsi_queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
1307 while (vsi_queue_id < I40E_MAX_VSI_QP) {
1308 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1309 vsi_queue_id)) {
1310 aq_ret = I40E_ERR_PARAM;
1311 goto error_param;
1312 }
1313 vsi_queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
1314 vsi_queue_id + 1);
1315 }
1316
1317 i40e_config_irq_link_list(vf, vsi_id, map);
1318 }
1319error_param:
1320 /* send the response to the vf */
1321 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1322 aq_ret);
1323}
1324
1325/**
1326 * i40e_vc_enable_queues_msg
1327 * @vf: pointer to the vf info
1328 * @msg: pointer to the msg buffer
1329 * @msglen: msg length
1330 *
1331 * called from the vf to enable all or specific queue(s)
1332 **/
1333static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1334{
1335 struct i40e_virtchnl_queue_select *vqs =
1336 (struct i40e_virtchnl_queue_select *)msg;
1337 struct i40e_pf *pf = vf->pf;
1338 u16 vsi_id = vqs->vsi_id;
1339 i40e_status aq_ret = 0;
1340 unsigned long tempmap;
1341 u16 queue_id;
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, 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
1358 tempmap = vqs->rx_queues;
1359 queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
1360 while (queue_id < I40E_MAX_VSI_QP) {
1361 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) {
1362 aq_ret = I40E_ERR_PARAM;
1363 goto error_param;
1364 }
1365 i40e_ctrl_vsi_rx_queue(vf, vsi_id, queue_id,
1366 I40E_QUEUE_CTRL_ENABLE);
1367
1368 queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
1369 queue_id + 1);
1370 }
1371
1372 tempmap = vqs->tx_queues;
1373 queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
1374 while (queue_id < I40E_MAX_VSI_QP) {
1375 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) {
1376 aq_ret = I40E_ERR_PARAM;
1377 goto error_param;
1378 }
1379 i40e_ctrl_vsi_tx_queue(vf, vsi_id, queue_id,
1380 I40E_QUEUE_CTRL_ENABLE);
1381
1382 queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
1383 queue_id + 1);
1384 }
1385
1386 /* Poll the status register to make sure that the
1387 * requested op was completed successfully
1388 */
1389 udelay(10);
1390
1391 tempmap = vqs->rx_queues;
1392 queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
1393 while (queue_id < I40E_MAX_VSI_QP) {
1394 if (i40e_ctrl_vsi_rx_queue(vf, vsi_id, queue_id,
1395 I40E_QUEUE_CTRL_ENABLECHECK)) {
1396 dev_err(&pf->pdev->dev,
1397 "Queue control check failed on RX queue %d of VSI %d VF %d\n",
1398 queue_id, vsi_id, vf->vf_id);
1399 }
1400 queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
1401 queue_id + 1);
1402 }
1403
1404 tempmap = vqs->tx_queues;
1405 queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
1406 while (queue_id < I40E_MAX_VSI_QP) {
1407 if (i40e_ctrl_vsi_tx_queue(vf, vsi_id, queue_id,
1408 I40E_QUEUE_CTRL_ENABLECHECK)) {
1409 dev_err(&pf->pdev->dev,
1410 "Queue control check failed on TX queue %d of VSI %d VF %d\n",
1411 queue_id, vsi_id, vf->vf_id);
1412 }
1413 queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
1414 queue_id + 1);
1415 }
1416
1417error_param:
1418 /* send the response to the vf */
1419 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1420 aq_ret);
1421}
1422
1423/**
1424 * i40e_vc_disable_queues_msg
1425 * @vf: pointer to the vf info
1426 * @msg: pointer to the msg buffer
1427 * @msglen: msg length
1428 *
1429 * called from the vf to disable all or specific
1430 * queue(s)
1431 **/
1432static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1433{
1434 struct i40e_virtchnl_queue_select *vqs =
1435 (struct i40e_virtchnl_queue_select *)msg;
1436 struct i40e_pf *pf = vf->pf;
1437 u16 vsi_id = vqs->vsi_id;
1438 i40e_status aq_ret = 0;
1439 unsigned long tempmap;
1440 u16 queue_id;
1441
1442 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1443 aq_ret = I40E_ERR_PARAM;
1444 goto error_param;
1445 }
1446
1447 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1448 aq_ret = I40E_ERR_PARAM;
1449 goto error_param;
1450 }
1451
1452 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1453 aq_ret = I40E_ERR_PARAM;
1454 goto error_param;
1455 }
1456
1457 tempmap = vqs->rx_queues;
1458 queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
1459 while (queue_id < I40E_MAX_VSI_QP) {
1460 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) {
1461 aq_ret = I40E_ERR_PARAM;
1462 goto error_param;
1463 }
1464 i40e_ctrl_vsi_rx_queue(vf, vsi_id, queue_id,
1465 I40E_QUEUE_CTRL_DISABLE);
1466
1467 queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
1468 queue_id + 1);
1469 }
1470
1471 tempmap = vqs->tx_queues;
1472 queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
1473 while (queue_id < I40E_MAX_VSI_QP) {
1474 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) {
1475 aq_ret = I40E_ERR_PARAM;
1476 goto error_param;
1477 }
1478 i40e_ctrl_vsi_tx_queue(vf, vsi_id, queue_id,
1479 I40E_QUEUE_CTRL_DISABLE);
1480
1481 queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
1482 queue_id + 1);
1483 }
1484
1485 /* Poll the status register to make sure that the
1486 * requested op was completed successfully
1487 */
1488 udelay(10);
1489
1490 tempmap = vqs->rx_queues;
1491 queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
1492 while (queue_id < I40E_MAX_VSI_QP) {
1493 if (i40e_ctrl_vsi_rx_queue(vf, vsi_id, queue_id,
1494 I40E_QUEUE_CTRL_DISABLECHECK)) {
1495 dev_err(&pf->pdev->dev,
1496 "Queue control check failed on RX queue %d of VSI %d VF %d\n",
1497 queue_id, vsi_id, vf->vf_id);
1498 }
1499 queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
1500 queue_id + 1);
1501 }
1502
1503 tempmap = vqs->tx_queues;
1504 queue_id = find_first_bit(&tempmap, I40E_MAX_VSI_QP);
1505 while (queue_id < I40E_MAX_VSI_QP) {
1506 if (i40e_ctrl_vsi_tx_queue(vf, vsi_id, queue_id,
1507 I40E_QUEUE_CTRL_DISABLECHECK)) {
1508 dev_err(&pf->pdev->dev,
1509 "Queue control check failed on TX queue %d of VSI %d VF %d\n",
1510 queue_id, vsi_id, vf->vf_id);
1511 }
1512 queue_id = find_next_bit(&tempmap, I40E_MAX_VSI_QP,
1513 queue_id + 1);
1514 }
1515
1516error_param:
1517 /* send the response to the vf */
1518 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1519 aq_ret);
1520}
1521
1522/**
1523 * i40e_vc_get_stats_msg
1524 * @vf: pointer to the vf info
1525 * @msg: pointer to the msg buffer
1526 * @msglen: msg length
1527 *
1528 * called from the vf to get vsi stats
1529 **/
1530static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1531{
1532 struct i40e_virtchnl_queue_select *vqs =
1533 (struct i40e_virtchnl_queue_select *)msg;
1534 struct i40e_pf *pf = vf->pf;
1535 struct i40e_eth_stats stats;
1536 i40e_status aq_ret = 0;
1537 struct i40e_vsi *vsi;
1538
1539 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1540
1541 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1542 aq_ret = I40E_ERR_PARAM;
1543 goto error_param;
1544 }
1545
1546 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1547 aq_ret = I40E_ERR_PARAM;
1548 goto error_param;
1549 }
1550
1551 vsi = pf->vsi[vqs->vsi_id];
1552 if (!vsi) {
1553 aq_ret = I40E_ERR_PARAM;
1554 goto error_param;
1555 }
1556 i40e_update_eth_stats(vsi);
1557 memcpy(&stats, &vsi->eth_stats, sizeof(struct i40e_eth_stats));
1558
1559error_param:
1560 /* send the response back to the vf */
1561 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1562 (u8 *)&stats, sizeof(stats));
1563}
1564
1565/**
1566 * i40e_vc_add_mac_addr_msg
1567 * @vf: pointer to the vf info
1568 * @msg: pointer to the msg buffer
1569 * @msglen: msg length
1570 *
1571 * add guest mac address filter
1572 **/
1573static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1574{
1575 struct i40e_virtchnl_ether_addr_list *al =
1576 (struct i40e_virtchnl_ether_addr_list *)msg;
1577 struct i40e_pf *pf = vf->pf;
1578 struct i40e_vsi *vsi = NULL;
1579 u16 vsi_id = al->vsi_id;
1580 i40e_status aq_ret = 0;
1581 int i;
1582
1583 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1584 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1585 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1586 aq_ret = I40E_ERR_PARAM;
1587 goto error_param;
1588 }
1589
1590 for (i = 0; i < al->num_elements; i++) {
1591 if (is_broadcast_ether_addr(al->list[i].addr) ||
1592 is_zero_ether_addr(al->list[i].addr)) {
1593 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pMAC\n",
1594 al->list[i].addr);
1595 aq_ret = I40E_ERR_PARAM;
1596 goto error_param;
1597 }
1598 }
1599 vsi = pf->vsi[vsi_id];
1600
1601 /* add new addresses to the list */
1602 for (i = 0; i < al->num_elements; i++) {
1603 struct i40e_mac_filter *f;
1604
1605 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1606 if (f) {
1607 if (i40e_is_vsi_in_vlan(vsi))
1608 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1609 true, false);
1610 else
1611 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1612 true, false);
1613 }
1614
1615 if (!f) {
1616 dev_err(&pf->pdev->dev,
1617 "Unable to add VF MAC filter\n");
1618 aq_ret = I40E_ERR_PARAM;
1619 goto error_param;
1620 }
1621 }
1622
1623 /* program the updated filter list */
1624 if (i40e_sync_vsi_filters(vsi))
1625 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1626
1627error_param:
1628 /* send the response to the vf */
1629 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1630 aq_ret);
1631}
1632
1633/**
1634 * i40e_vc_del_mac_addr_msg
1635 * @vf: pointer to the vf info
1636 * @msg: pointer to the msg buffer
1637 * @msglen: msg length
1638 *
1639 * remove guest mac address filter
1640 **/
1641static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1642{
1643 struct i40e_virtchnl_ether_addr_list *al =
1644 (struct i40e_virtchnl_ether_addr_list *)msg;
1645 struct i40e_pf *pf = vf->pf;
1646 struct i40e_vsi *vsi = NULL;
1647 u16 vsi_id = al->vsi_id;
1648 i40e_status aq_ret = 0;
1649 int i;
1650
1651 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1652 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1653 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1654 aq_ret = I40E_ERR_PARAM;
1655 goto error_param;
1656 }
1657 vsi = pf->vsi[vsi_id];
1658
1659 /* delete addresses from the list */
1660 for (i = 0; i < al->num_elements; i++)
1661 i40e_del_filter(vsi, al->list[i].addr,
1662 I40E_VLAN_ANY, true, false);
1663
1664 /* program the updated filter list */
1665 if (i40e_sync_vsi_filters(vsi))
1666 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1667
1668error_param:
1669 /* send the response to the vf */
1670 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
1671 aq_ret);
1672}
1673
1674/**
1675 * i40e_vc_add_vlan_msg
1676 * @vf: pointer to the vf info
1677 * @msg: pointer to the msg buffer
1678 * @msglen: msg length
1679 *
1680 * program guest vlan id
1681 **/
1682static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1683{
1684 struct i40e_virtchnl_vlan_filter_list *vfl =
1685 (struct i40e_virtchnl_vlan_filter_list *)msg;
1686 struct i40e_pf *pf = vf->pf;
1687 struct i40e_vsi *vsi = NULL;
1688 u16 vsi_id = vfl->vsi_id;
1689 i40e_status aq_ret = 0;
1690 int i;
1691
1692 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1693 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1694 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1695 aq_ret = I40E_ERR_PARAM;
1696 goto error_param;
1697 }
1698
1699 for (i = 0; i < vfl->num_elements; i++) {
1700 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1701 aq_ret = I40E_ERR_PARAM;
1702 dev_err(&pf->pdev->dev,
1703 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1704 goto error_param;
1705 }
1706 }
1707 vsi = pf->vsi[vsi_id];
1708 if (vsi->info.pvid) {
1709 aq_ret = I40E_ERR_PARAM;
1710 goto error_param;
1711 }
1712
1713 i40e_vlan_stripping_enable(vsi);
1714 for (i = 0; i < vfl->num_elements; i++) {
1715 /* add new VLAN filter */
1716 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1717 if (ret)
1718 dev_err(&pf->pdev->dev,
1719 "Unable to add VF vlan filter %d, error %d\n",
1720 vfl->vlan_id[i], ret);
1721 }
1722
1723error_param:
1724 /* send the response to the vf */
1725 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1726}
1727
1728/**
1729 * i40e_vc_remove_vlan_msg
1730 * @vf: pointer to the vf info
1731 * @msg: pointer to the msg buffer
1732 * @msglen: msg length
1733 *
1734 * remove programmed guest vlan id
1735 **/
1736static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1737{
1738 struct i40e_virtchnl_vlan_filter_list *vfl =
1739 (struct i40e_virtchnl_vlan_filter_list *)msg;
1740 struct i40e_pf *pf = vf->pf;
1741 struct i40e_vsi *vsi = NULL;
1742 u16 vsi_id = vfl->vsi_id;
1743 i40e_status aq_ret = 0;
1744 int i;
1745
1746 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1747 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1748 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1749 aq_ret = I40E_ERR_PARAM;
1750 goto error_param;
1751 }
1752
1753 for (i = 0; i < vfl->num_elements; i++) {
1754 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1755 aq_ret = I40E_ERR_PARAM;
1756 goto error_param;
1757 }
1758 }
1759
1760 vsi = pf->vsi[vsi_id];
1761 if (vsi->info.pvid) {
1762 aq_ret = I40E_ERR_PARAM;
1763 goto error_param;
1764 }
1765
1766 for (i = 0; i < vfl->num_elements; i++) {
1767 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1768 if (ret)
1769 dev_err(&pf->pdev->dev,
1770 "Unable to delete VF vlan filter %d, error %d\n",
1771 vfl->vlan_id[i], ret);
1772 }
1773
1774error_param:
1775 /* send the response to the vf */
1776 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1777}
1778
1779/**
1780 * i40e_vc_fcoe_msg
1781 * @vf: pointer to the vf info
1782 * @msg: pointer to the msg buffer
1783 * @msglen: msg length
1784 *
1785 * called from the vf for the fcoe msgs
1786 **/
1787static int i40e_vc_fcoe_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1788{
1789 i40e_status aq_ret = 0;
1790
1791 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1792 !test_bit(I40E_VF_STAT_FCOEENA, &vf->vf_states)) {
1793 aq_ret = I40E_ERR_PARAM;
1794 goto error_param;
1795 }
1796 aq_ret = I40E_ERR_NOT_IMPLEMENTED;
1797
1798error_param:
1799 /* send the response to the vf */
1800 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_FCOE, aq_ret);
1801}
1802
1803/**
1804 * i40e_vc_validate_vf_msg
1805 * @vf: pointer to the vf info
1806 * @msg: pointer to the msg buffer
1807 * @msglen: msg length
1808 * @msghndl: msg handle
1809 *
1810 * validate msg
1811 **/
1812static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
1813 u32 v_retval, u8 *msg, u16 msglen)
1814{
1815 bool err_msg_format = false;
1816 int valid_len;
1817
1818 /* Check if VF is disabled. */
1819 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
1820 return I40E_ERR_PARAM;
1821
1822 /* Validate message length. */
1823 switch (v_opcode) {
1824 case I40E_VIRTCHNL_OP_VERSION:
1825 valid_len = sizeof(struct i40e_virtchnl_version_info);
1826 break;
1827 case I40E_VIRTCHNL_OP_RESET_VF:
1828 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1829 valid_len = 0;
1830 break;
1831 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
1832 valid_len = sizeof(struct i40e_virtchnl_txq_info);
1833 break;
1834 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
1835 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
1836 break;
1837 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1838 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
1839 if (msglen >= valid_len) {
1840 struct i40e_virtchnl_vsi_queue_config_info *vqc =
1841 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1842 valid_len += (vqc->num_queue_pairs *
1843 sizeof(struct
1844 i40e_virtchnl_queue_pair_info));
1845 if (vqc->num_queue_pairs == 0)
1846 err_msg_format = true;
1847 }
1848 break;
1849 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1850 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
1851 if (msglen >= valid_len) {
1852 struct i40e_virtchnl_irq_map_info *vimi =
1853 (struct i40e_virtchnl_irq_map_info *)msg;
1854 valid_len += (vimi->num_vectors *
1855 sizeof(struct i40e_virtchnl_vector_map));
1856 if (vimi->num_vectors == 0)
1857 err_msg_format = true;
1858 }
1859 break;
1860 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1861 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1862 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1863 break;
1864 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1865 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1866 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
1867 if (msglen >= valid_len) {
1868 struct i40e_virtchnl_ether_addr_list *veal =
1869 (struct i40e_virtchnl_ether_addr_list *)msg;
1870 valid_len += veal->num_elements *
1871 sizeof(struct i40e_virtchnl_ether_addr);
1872 if (veal->num_elements == 0)
1873 err_msg_format = true;
1874 }
1875 break;
1876 case I40E_VIRTCHNL_OP_ADD_VLAN:
1877 case I40E_VIRTCHNL_OP_DEL_VLAN:
1878 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
1879 if (msglen >= valid_len) {
1880 struct i40e_virtchnl_vlan_filter_list *vfl =
1881 (struct i40e_virtchnl_vlan_filter_list *)msg;
1882 valid_len += vfl->num_elements * sizeof(u16);
1883 if (vfl->num_elements == 0)
1884 err_msg_format = true;
1885 }
1886 break;
1887 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1888 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
1889 break;
1890 case I40E_VIRTCHNL_OP_GET_STATS:
1891 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1892 break;
1893 /* These are always errors coming from the VF. */
1894 case I40E_VIRTCHNL_OP_EVENT:
1895 case I40E_VIRTCHNL_OP_UNKNOWN:
1896 default:
1897 return -EPERM;
1898 break;
1899 }
1900 /* few more checks */
1901 if ((valid_len != msglen) || (err_msg_format)) {
1902 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
1903 return -EINVAL;
1904 } else {
1905 return 0;
1906 }
1907}
1908
1909/**
1910 * i40e_vc_process_vf_msg
1911 * @pf: pointer to the pf structure
1912 * @vf_id: source vf id
1913 * @msg: pointer to the msg buffer
1914 * @msglen: msg length
1915 * @msghndl: msg handle
1916 *
1917 * called from the common aeq/arq handler to
1918 * process request from vf
1919 **/
1920int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
1921 u32 v_retval, u8 *msg, u16 msglen)
1922{
1923 struct i40e_vf *vf = &(pf->vf[vf_id]);
1924 struct i40e_hw *hw = &pf->hw;
1925 int ret;
1926
1927 pf->vf_aq_requests++;
1928 /* perform basic checks on the msg */
1929 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
1930
1931 if (ret) {
1932 dev_err(&pf->pdev->dev, "invalid message from vf %d\n", vf_id);
1933 return ret;
1934 }
1935 wr32(hw, I40E_VFGEN_RSTAT1(vf_id), I40E_VFR_VFACTIVE);
1936 switch (v_opcode) {
1937 case I40E_VIRTCHNL_OP_VERSION:
1938 ret = i40e_vc_get_version_msg(vf);
1939 break;
1940 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1941 ret = i40e_vc_get_vf_resources_msg(vf);
1942 break;
1943 case I40E_VIRTCHNL_OP_RESET_VF:
1944 ret = i40e_vc_reset_vf_msg(vf);
1945 break;
1946 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1947 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
1948 break;
1949 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1950 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
1951 break;
1952 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1953 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
1954 break;
1955 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1956 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
1957 break;
1958 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1959 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
1960 break;
1961 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1962 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
1963 break;
1964 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1965 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
1966 break;
1967 case I40E_VIRTCHNL_OP_ADD_VLAN:
1968 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
1969 break;
1970 case I40E_VIRTCHNL_OP_DEL_VLAN:
1971 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
1972 break;
1973 case I40E_VIRTCHNL_OP_GET_STATS:
1974 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
1975 break;
1976 case I40E_VIRTCHNL_OP_FCOE:
1977 ret = i40e_vc_fcoe_msg(vf, msg, msglen);
1978 break;
1979 case I40E_VIRTCHNL_OP_UNKNOWN:
1980 default:
1981 dev_err(&pf->pdev->dev,
1982 "Unsupported opcode %d from vf %d\n", v_opcode, vf_id);
1983 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
1984 I40E_ERR_NOT_IMPLEMENTED);
1985 break;
1986 }
1987
1988 return ret;
1989}
1990
1991/**
1992 * i40e_vc_process_vflr_event
1993 * @pf: pointer to the pf structure
1994 *
1995 * called from the vlfr irq handler to
1996 * free up vf resources and state variables
1997 **/
1998int i40e_vc_process_vflr_event(struct i40e_pf *pf)
1999{
2000 u32 reg, reg_idx, bit_idx, vf_id;
2001 struct i40e_hw *hw = &pf->hw;
2002 struct i40e_vf *vf;
2003
2004 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
2005 return 0;
2006
2007 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
2008 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
2009 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
2010 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
2011 /* read GLGEN_VFLRSTAT register to find out the flr vfs */
2012 vf = &pf->vf[vf_id];
2013 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
2014 if (reg & (1 << bit_idx)) {
2015 /* clear the bit in GLGEN_VFLRSTAT */
2016 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
2017
2018 if (i40e_reset_vf(vf, true))
2019 dev_err(&pf->pdev->dev,
2020 "Unable to reset the VF %d\n", vf_id);
2021 /* free up vf resources to destroy vsi state */
2022 i40e_free_vf_res(vf);
2023
2024 /* allocate new vf resources with the default state */
2025 if (i40e_alloc_vf_res(vf))
2026 dev_err(&pf->pdev->dev,
2027 "Unable to allocate VF resources %d\n",
2028 vf_id);
2029
2030 i40e_enable_vf_mappings(vf);
2031 }
2032 }
2033
2034 /* re-enable vflr interrupt cause */
2035 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
2036 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
2037 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
2038 i40e_flush(hw);
2039
2040 return 0;
2041}
2042
2043/**
2044 * i40e_vc_vf_broadcast
2045 * @pf: pointer to the pf structure
2046 * @opcode: operation code
2047 * @retval: return value
2048 * @msg: pointer to the msg buffer
2049 * @msglen: msg length
2050 *
2051 * send a message to all VFs on a given PF
2052 **/
2053static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
2054 enum i40e_virtchnl_ops v_opcode,
2055 i40e_status v_retval, u8 *msg,
2056 u16 msglen)
2057{
2058 struct i40e_hw *hw = &pf->hw;
2059 struct i40e_vf *vf = pf->vf;
2060 int i;
2061
2062 for (i = 0; i < pf->num_alloc_vfs; i++) {
2063 /* Ignore return value on purpose - a given VF may fail, but
2064 * we need to keep going and send to all of them
2065 */
2066 i40e_aq_send_msg_to_vf(hw, vf->vf_id, v_opcode, v_retval,
2067 msg, msglen, NULL);
2068 vf++;
2069 }
2070}
2071
2072/**
2073 * i40e_vc_notify_link_state
2074 * @pf: pointer to the pf structure
2075 *
2076 * send a link status message to all VFs on a given PF
2077 **/
2078void i40e_vc_notify_link_state(struct i40e_pf *pf)
2079{
2080 struct i40e_virtchnl_pf_event pfe;
2081
2082 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
2083 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
2084 pfe.event_data.link_event.link_status =
2085 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
2086 pfe.event_data.link_event.link_speed = pf->hw.phy.link_info.link_speed;
2087
2088 i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, I40E_SUCCESS,
2089 (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
2090}
2091
2092/**
2093 * i40e_vc_notify_reset
2094 * @pf: pointer to the pf structure
2095 *
2096 * indicate a pending reset to all VFs on a given PF
2097 **/
2098void i40e_vc_notify_reset(struct i40e_pf *pf)
2099{
2100 struct i40e_virtchnl_pf_event pfe;
2101
2102 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
2103 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
2104 i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, I40E_SUCCESS,
2105 (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
2106}
2107
2108/**
2109 * i40e_vc_notify_vf_reset
2110 * @vf: pointer to the vf structure
2111 *
2112 * indicate a pending reset to the given VF
2113 **/
2114void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
2115{
2116 struct i40e_virtchnl_pf_event pfe;
2117
2118 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
2119 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
2120 i40e_aq_send_msg_to_vf(&vf->pf->hw, vf->vf_id, I40E_VIRTCHNL_OP_EVENT,
2121 I40E_SUCCESS, (u8 *)&pfe,
2122 sizeof(struct i40e_virtchnl_pf_event), NULL);
2123}
2124
2125/**
2126 * i40e_ndo_set_vf_mac
2127 * @netdev: network interface device structure
2128 * @vf_id: vf identifier
2129 * @mac: mac address
2130 *
2131 * program vf mac address
2132 **/
2133int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
2134{
2135 struct i40e_netdev_priv *np = netdev_priv(netdev);
2136 struct i40e_vsi *vsi = np->vsi;
2137 struct i40e_pf *pf = vsi->back;
2138 struct i40e_mac_filter *f;
2139 struct i40e_vf *vf;
2140 int ret = 0;
2141
2142 /* validate the request */
2143 if (vf_id >= pf->num_alloc_vfs) {
2144 dev_err(&pf->pdev->dev,
2145 "Invalid VF Identifier %d\n", vf_id);
2146 ret = -EINVAL;
2147 goto error_param;
2148 }
2149
2150 vf = &(pf->vf[vf_id]);
2151 vsi = pf->vsi[vf->lan_vsi_index];
2152 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2153 dev_err(&pf->pdev->dev,
2154 "Uninitialized VF %d\n", vf_id);
2155 ret = -EINVAL;
2156 goto error_param;
2157 }
2158
2159 if (!is_valid_ether_addr(mac)) {
2160 dev_err(&pf->pdev->dev,
2161 "Invalid VF ethernet address\n");
2162 ret = -EINVAL;
2163 goto error_param;
2164 }
2165
2166 /* delete the temporary mac address */
2167 i40e_del_filter(vsi, vf->default_lan_addr.addr, 0, true, false);
2168
2169 /* add the new mac address */
2170 f = i40e_add_filter(vsi, mac, 0, true, false);
2171 if (!f) {
2172 dev_err(&pf->pdev->dev,
2173 "Unable to add VF ucast filter\n");
2174 ret = -ENOMEM;
2175 goto error_param;
2176 }
2177
2178 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2179 /* program mac filter */
2180 if (i40e_sync_vsi_filters(vsi)) {
2181 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2182 ret = -EIO;
2183 goto error_param;
2184 }
2185 memcpy(vf->default_lan_addr.addr, mac, ETH_ALEN);
2186 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2187 ret = 0;
2188
2189error_param:
2190 return ret;
2191}
2192
2193/**
2194 * i40e_ndo_set_vf_port_vlan
2195 * @netdev: network interface device structure
2196 * @vf_id: vf identifier
2197 * @vlan_id: mac address
2198 * @qos: priority setting
2199 *
2200 * program vf vlan id and/or qos
2201 **/
2202int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2203 int vf_id, u16 vlan_id, u8 qos)
2204{
2205 struct i40e_netdev_priv *np = netdev_priv(netdev);
2206 struct i40e_pf *pf = np->vsi->back;
2207 struct i40e_vsi *vsi;
2208 struct i40e_vf *vf;
2209 int ret = 0;
2210
2211 /* validate the request */
2212 if (vf_id >= pf->num_alloc_vfs) {
2213 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2214 ret = -EINVAL;
2215 goto error_pvid;
2216 }
2217
2218 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2219 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2220 ret = -EINVAL;
2221 goto error_pvid;
2222 }
2223
2224 vf = &(pf->vf[vf_id]);
2225 vsi = pf->vsi[vf->lan_vsi_index];
2226 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2227 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2228 ret = -EINVAL;
2229 goto error_pvid;
2230 }
2231
2232 if (vsi->info.pvid) {
2233 /* kill old VLAN */
2234 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2235 VLAN_VID_MASK));
2236 if (ret) {
2237 dev_info(&vsi->back->pdev->dev,
2238 "remove VLAN failed, ret=%d, aq_err=%d\n",
2239 ret, pf->hw.aq.asq_last_status);
2240 }
2241 }
2242 if (vlan_id || qos)
2243 ret = i40e_vsi_add_pvid(vsi,
2244 vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT));
2245 else
2246 i40e_vlan_stripping_disable(vsi);
2247
2248 if (vlan_id) {
2249 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2250 vlan_id, qos, vf_id);
2251
2252 /* add new VLAN filter */
2253 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2254 if (ret) {
2255 dev_info(&vsi->back->pdev->dev,
2256 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2257 vsi->back->hw.aq.asq_last_status);
2258 goto error_pvid;
2259 }
2260 }
2261
2262 if (ret) {
2263 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2264 goto error_pvid;
2265 }
2266 ret = 0;
2267
2268error_pvid:
2269 return ret;
2270}
2271
2272/**
2273 * i40e_ndo_set_vf_bw
2274 * @netdev: network interface device structure
2275 * @vf_id: vf identifier
2276 * @tx_rate: tx rate
2277 *
2278 * configure vf tx rate
2279 **/
2280int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int tx_rate)
2281{
2282 return -EOPNOTSUPP;
2283}
2284
2285/**
2286 * i40e_ndo_get_vf_config
2287 * @netdev: network interface device structure
2288 * @vf_id: vf identifier
2289 * @ivi: vf configuration structure
2290 *
2291 * return vf configuration
2292 **/
2293int i40e_ndo_get_vf_config(struct net_device *netdev,
2294 int vf_id, struct ifla_vf_info *ivi)
2295{
2296 struct i40e_netdev_priv *np = netdev_priv(netdev);
2297 struct i40e_mac_filter *f, *ftmp;
2298 struct i40e_vsi *vsi = np->vsi;
2299 struct i40e_pf *pf = vsi->back;
2300 struct i40e_vf *vf;
2301 int ret = 0;
2302
2303 /* validate the request */
2304 if (vf_id >= pf->num_alloc_vfs) {
2305 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2306 ret = -EINVAL;
2307 goto error_param;
2308 }
2309
2310 vf = &(pf->vf[vf_id]);
2311 /* first vsi is always the LAN vsi */
2312 vsi = pf->vsi[vf->lan_vsi_index];
2313 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2314 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2315 ret = -EINVAL;
2316 goto error_param;
2317 }
2318
2319 ivi->vf = vf_id;
2320
2321 /* first entry of the list is the default ethernet address */
2322 list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) {
2323 memcpy(&ivi->mac, f->macaddr, I40E_ETH_LENGTH_OF_ADDRESS);
2324 break;
2325 }
2326
2327 ivi->tx_rate = 0;
2328 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2329 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2330 I40E_VLAN_PRIORITY_SHIFT;
2331 ret = 0;
2332
2333error_param:
2334 return ret;
2335}
Linux kernel - Deliverables
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