]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
projects / mirror_ubuntu-artful-kernel.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
[mirror_ubuntu-artful-kernel.git] / drivers / net / ethernet / intel / i40e / i40e_virtchnl_pf.c
1 /*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 2015 Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program. If not, see <http://www.gnu.org/licenses/>.
17 *
18 * The full GNU General Public License is included in this distribution in
19 * the file called "COPYING".
20 *
21 * Contact Information:
22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *
25 ******************************************************************************/
26
27 #include "i40e.h"
28
29 /*********************notification routines***********************/
30
31 /**
32 * i40e_vc_vf_broadcast
33 * @pf: pointer to the PF structure
34 * @opcode: operation code
35 * @retval: return value
36 * @msg: pointer to the msg buffer
37 * @msglen: msg length
38 *
39 * send a message to all VFs on a given PF
40 **/
41 static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
42 enum i40e_virtchnl_ops v_opcode,
43 i40e_status v_retval, u8 *msg,
44 u16 msglen)
45 {
46 struct i40e_hw *hw = &pf->hw;
47 struct i40e_vf *vf = pf->vf;
48 int i;
49
50 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
51 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
52 /* Not all vfs are enabled so skip the ones that are not */
53 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
54 !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
55 continue;
56
57 /* Ignore return value on purpose - a given VF may fail, but
58 * we need to keep going and send to all of them
59 */
60 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
61 msg, msglen, NULL);
62 }
63 }
64
65 /**
66 * i40e_vc_notify_link_state
67 * @vf: pointer to the VF structure
68 *
69 * send a link status message to a single VF
70 **/
71 static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
72 {
73 struct i40e_virtchnl_pf_event pfe;
74 struct i40e_pf *pf = vf->pf;
75 struct i40e_hw *hw = &pf->hw;
76 struct i40e_link_status *ls = &pf->hw.phy.link_info;
77 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
78
79 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
80 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
81 if (vf->link_forced) {
82 pfe.event_data.link_event.link_status = vf->link_up;
83 pfe.event_data.link_event.link_speed =
84 (vf->link_up ? I40E_LINK_SPEED_40GB : 0);
85 } else {
86 pfe.event_data.link_event.link_status =
87 ls->link_info & I40E_AQ_LINK_UP;
88 pfe.event_data.link_event.link_speed = ls->link_speed;
89 }
90 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
91 0, (u8 *)&pfe, sizeof(pfe), NULL);
92 }
93
94 /**
95 * i40e_vc_notify_link_state
96 * @pf: pointer to the PF structure
97 *
98 * send a link status message to all VFs on a given PF
99 **/
100 void i40e_vc_notify_link_state(struct i40e_pf *pf)
101 {
102 int i;
103
104 for (i = 0; i < pf->num_alloc_vfs; i++)
105 i40e_vc_notify_vf_link_state(&pf->vf[i]);
106 }
107
108 /**
109 * i40e_vc_notify_reset
110 * @pf: pointer to the PF structure
111 *
112 * indicate a pending reset to all VFs on a given PF
113 **/
114 void i40e_vc_notify_reset(struct i40e_pf *pf)
115 {
116 struct i40e_virtchnl_pf_event pfe;
117
118 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
119 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
120 i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, 0,
121 (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
122 }
123
124 /**
125 * i40e_vc_notify_vf_reset
126 * @vf: pointer to the VF structure
127 *
128 * indicate a pending reset to the given VF
129 **/
130 void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
131 {
132 struct i40e_virtchnl_pf_event pfe;
133 int abs_vf_id;
134
135 /* validate the request */
136 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
137 return;
138
139 /* verify if the VF is in either init or active before proceeding */
140 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
141 !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
142 return;
143
144 abs_vf_id = vf->vf_id + vf->pf->hw.func_caps.vf_base_id;
145
146 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
147 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
148 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
149 0, (u8 *)&pfe,
150 sizeof(struct i40e_virtchnl_pf_event), NULL);
151 }
152 /***********************misc routines*****************************/
153
154 /**
155 * i40e_vc_disable_vf
156 * @pf: pointer to the PF info
157 * @vf: pointer to the VF info
158 *
159 * Disable the VF through a SW reset
160 **/
161 static inline void i40e_vc_disable_vf(struct i40e_pf *pf, struct i40e_vf *vf)
162 {
163 struct i40e_hw *hw = &pf->hw;
164 u32 reg;
165
166 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
167 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
168 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
169 i40e_flush(hw);
170 }
171
172 /**
173 * i40e_vc_isvalid_vsi_id
174 * @vf: pointer to the VF info
175 * @vsi_id: VF relative VSI id
176 *
177 * check for the valid VSI id
178 **/
179 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
180 {
181 struct i40e_pf *pf = vf->pf;
182 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
183
184 return (vsi && (vsi->vf_id == vf->vf_id));
185 }
186
187 /**
188 * i40e_vc_isvalid_queue_id
189 * @vf: pointer to the VF info
190 * @vsi_id: vsi id
191 * @qid: vsi relative queue id
192 *
193 * check for the valid queue id
194 **/
195 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
196 u8 qid)
197 {
198 struct i40e_pf *pf = vf->pf;
199 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
200
201 return (vsi && (qid < vsi->alloc_queue_pairs));
202 }
203
204 /**
205 * i40e_vc_isvalid_vector_id
206 * @vf: pointer to the VF info
207 * @vector_id: VF relative vector id
208 *
209 * check for the valid vector id
210 **/
211 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
212 {
213 struct i40e_pf *pf = vf->pf;
214
215 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
216 }
217
218 /***********************vf resource mgmt routines*****************/
219
220 /**
221 * i40e_vc_get_pf_queue_id
222 * @vf: pointer to the VF info
223 * @vsi_id: id of VSI as provided by the FW
224 * @vsi_queue_id: vsi relative queue id
225 *
226 * return PF relative queue id
227 **/
228 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
229 u8 vsi_queue_id)
230 {
231 struct i40e_pf *pf = vf->pf;
232 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
233 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
234
235 if (!vsi)
236 return pf_queue_id;
237
238 if (le16_to_cpu(vsi->info.mapping_flags) &
239 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
240 pf_queue_id =
241 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
242 else
243 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
244 vsi_queue_id;
245
246 return pf_queue_id;
247 }
248
249 /**
250 * i40e_config_irq_link_list
251 * @vf: pointer to the VF info
252 * @vsi_id: id of VSI as given by the FW
253 * @vecmap: irq map info
254 *
255 * configure irq link list from the map
256 **/
257 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
258 struct i40e_virtchnl_vector_map *vecmap)
259 {
260 unsigned long linklistmap = 0, tempmap;
261 struct i40e_pf *pf = vf->pf;
262 struct i40e_hw *hw = &pf->hw;
263 u16 vsi_queue_id, pf_queue_id;
264 enum i40e_queue_type qtype;
265 u16 next_q, vector_id;
266 u32 reg, reg_idx;
267 u16 itr_idx = 0;
268
269 vector_id = vecmap->vector_id;
270 /* setup the head */
271 if (0 == vector_id)
272 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
273 else
274 reg_idx = I40E_VPINT_LNKLSTN(
275 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
276 (vector_id - 1));
277
278 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
279 /* Special case - No queues mapped on this vector */
280 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
281 goto irq_list_done;
282 }
283 tempmap = vecmap->rxq_map;
284 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
285 linklistmap |= (1 <<
286 (I40E_VIRTCHNL_SUPPORTED_QTYPES *
287 vsi_queue_id));
288 }
289
290 tempmap = vecmap->txq_map;
291 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
292 linklistmap |= (1 <<
293 (I40E_VIRTCHNL_SUPPORTED_QTYPES * vsi_queue_id
294 + 1));
295 }
296
297 next_q = find_first_bit(&linklistmap,
298 (I40E_MAX_VSI_QP *
299 I40E_VIRTCHNL_SUPPORTED_QTYPES));
300 vsi_queue_id = next_q/I40E_VIRTCHNL_SUPPORTED_QTYPES;
301 qtype = next_q%I40E_VIRTCHNL_SUPPORTED_QTYPES;
302 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
303 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
304
305 wr32(hw, reg_idx, reg);
306
307 while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
308 switch (qtype) {
309 case I40E_QUEUE_TYPE_RX:
310 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
311 itr_idx = vecmap->rxitr_idx;
312 break;
313 case I40E_QUEUE_TYPE_TX:
314 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
315 itr_idx = vecmap->txitr_idx;
316 break;
317 default:
318 break;
319 }
320
321 next_q = find_next_bit(&linklistmap,
322 (I40E_MAX_VSI_QP *
323 I40E_VIRTCHNL_SUPPORTED_QTYPES),
324 next_q + 1);
325 if (next_q <
326 (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
327 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
328 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
329 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id,
330 vsi_queue_id);
331 } else {
332 pf_queue_id = I40E_QUEUE_END_OF_LIST;
333 qtype = 0;
334 }
335
336 /* format for the RQCTL & TQCTL regs is same */
337 reg = (vector_id) |
338 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
339 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
340 (1 << I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
341 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
342 wr32(hw, reg_idx, reg);
343 }
344
345 irq_list_done:
346 i40e_flush(hw);
347 }
348
349 /**
350 * i40e_config_vsi_tx_queue
351 * @vf: pointer to the VF info
352 * @vsi_id: id of VSI as provided by the FW
353 * @vsi_queue_id: vsi relative queue index
354 * @info: config. info
355 *
356 * configure tx queue
357 **/
358 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
359 u16 vsi_queue_id,
360 struct i40e_virtchnl_txq_info *info)
361 {
362 struct i40e_pf *pf = vf->pf;
363 struct i40e_hw *hw = &pf->hw;
364 struct i40e_hmc_obj_txq tx_ctx;
365 struct i40e_vsi *vsi;
366 u16 pf_queue_id;
367 u32 qtx_ctl;
368 int ret = 0;
369
370 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
371 vsi = i40e_find_vsi_from_id(pf, vsi_id);
372
373 /* clear the context structure first */
374 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
375
376 /* only set the required fields */
377 tx_ctx.base = info->dma_ring_addr / 128;
378 tx_ctx.qlen = info->ring_len;
379 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
380 tx_ctx.rdylist_act = 0;
381 tx_ctx.head_wb_ena = info->headwb_enabled;
382 tx_ctx.head_wb_addr = info->dma_headwb_addr;
383
384 /* clear the context in the HMC */
385 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
386 if (ret) {
387 dev_err(&pf->pdev->dev,
388 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
389 pf_queue_id, ret);
390 ret = -ENOENT;
391 goto error_context;
392 }
393
394 /* set the context in the HMC */
395 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
396 if (ret) {
397 dev_err(&pf->pdev->dev,
398 "Failed to set VF LAN Tx queue context %d error: %d\n",
399 pf_queue_id, ret);
400 ret = -ENOENT;
401 goto error_context;
402 }
403
404 /* associate this queue with the PCI VF function */
405 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
406 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
407 & I40E_QTX_CTL_PF_INDX_MASK);
408 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
409 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
410 & I40E_QTX_CTL_VFVM_INDX_MASK);
411 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
412 i40e_flush(hw);
413
414 error_context:
415 return ret;
416 }
417
418 /**
419 * i40e_config_vsi_rx_queue
420 * @vf: pointer to the VF info
421 * @vsi_id: id of VSI as provided by the FW
422 * @vsi_queue_id: vsi relative queue index
423 * @info: config. info
424 *
425 * configure rx queue
426 **/
427 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
428 u16 vsi_queue_id,
429 struct i40e_virtchnl_rxq_info *info)
430 {
431 struct i40e_pf *pf = vf->pf;
432 struct i40e_hw *hw = &pf->hw;
433 struct i40e_hmc_obj_rxq rx_ctx;
434 u16 pf_queue_id;
435 int ret = 0;
436
437 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
438
439 /* clear the context structure first */
440 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
441
442 /* only set the required fields */
443 rx_ctx.base = info->dma_ring_addr / 128;
444 rx_ctx.qlen = info->ring_len;
445
446 if (info->splithdr_enabled) {
447 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
448 I40E_RX_SPLIT_IP |
449 I40E_RX_SPLIT_TCP_UDP |
450 I40E_RX_SPLIT_SCTP;
451 /* header length validation */
452 if (info->hdr_size > ((2 * 1024) - 64)) {
453 ret = -EINVAL;
454 goto error_param;
455 }
456 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
457
458 /* set splitalways mode 10b */
459 rx_ctx.dtype = 0x2;
460 }
461
462 /* databuffer length validation */
463 if (info->databuffer_size > ((16 * 1024) - 128)) {
464 ret = -EINVAL;
465 goto error_param;
466 }
467 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
468
469 /* max pkt. length validation */
470 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
471 ret = -EINVAL;
472 goto error_param;
473 }
474 rx_ctx.rxmax = info->max_pkt_size;
475
476 /* enable 32bytes desc always */
477 rx_ctx.dsize = 1;
478
479 /* default values */
480 rx_ctx.lrxqthresh = 2;
481 rx_ctx.crcstrip = 1;
482 rx_ctx.prefena = 1;
483 rx_ctx.l2tsel = 1;
484
485 /* clear the context in the HMC */
486 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
487 if (ret) {
488 dev_err(&pf->pdev->dev,
489 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
490 pf_queue_id, ret);
491 ret = -ENOENT;
492 goto error_param;
493 }
494
495 /* set the context in the HMC */
496 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
497 if (ret) {
498 dev_err(&pf->pdev->dev,
499 "Failed to set VF LAN Rx queue context %d error: %d\n",
500 pf_queue_id, ret);
501 ret = -ENOENT;
502 goto error_param;
503 }
504
505 error_param:
506 return ret;
507 }
508
509 /**
510 * i40e_alloc_vsi_res
511 * @vf: pointer to the VF info
512 * @type: type of VSI to allocate
513 *
514 * alloc VF vsi context & resources
515 **/
516 static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
517 {
518 struct i40e_mac_filter *f = NULL;
519 struct i40e_pf *pf = vf->pf;
520 struct i40e_vsi *vsi;
521 int ret = 0;
522
523 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
524
525 if (!vsi) {
526 dev_err(&pf->pdev->dev,
527 "add vsi failed for VF %d, aq_err %d\n",
528 vf->vf_id, pf->hw.aq.asq_last_status);
529 ret = -ENOENT;
530 goto error_alloc_vsi_res;
531 }
532 if (type == I40E_VSI_SRIOV) {
533 u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
534 vf->lan_vsi_idx = vsi->idx;
535 vf->lan_vsi_id = vsi->id;
536 /* If the port VLAN has been configured and then the
537 * VF driver was removed then the VSI port VLAN
538 * configuration was destroyed. Check if there is
539 * a port VLAN and restore the VSI configuration if
540 * needed.
541 */
542 if (vf->port_vlan_id)
543 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
544 f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
545 vf->port_vlan_id, true, false);
546 if (!f)
547 dev_info(&pf->pdev->dev,
548 "Could not allocate VF MAC addr\n");
549 f = i40e_add_filter(vsi, brdcast, vf->port_vlan_id,
550 true, false);
551 if (!f)
552 dev_info(&pf->pdev->dev,
553 "Could not allocate VF broadcast filter\n");
554 }
555
556 /* program mac filter */
557 ret = i40e_sync_vsi_filters(vsi);
558 if (ret)
559 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
560
561 /* Set VF bandwidth if specified */
562 if (vf->tx_rate) {
563 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
564 vf->tx_rate / 50, 0, NULL);
565 if (ret)
566 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
567 vf->vf_id, ret);
568 }
569
570 error_alloc_vsi_res:
571 return ret;
572 }
573
574 /**
575 * i40e_enable_vf_mappings
576 * @vf: pointer to the VF info
577 *
578 * enable VF mappings
579 **/
580 static void i40e_enable_vf_mappings(struct i40e_vf *vf)
581 {
582 struct i40e_pf *pf = vf->pf;
583 struct i40e_hw *hw = &pf->hw;
584 u32 reg, total_queue_pairs = 0;
585 int j;
586
587 /* Tell the hardware we're using noncontiguous mapping. HW requires
588 * that VF queues be mapped using this method, even when they are
589 * contiguous in real life
590 */
591 wr32(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
592 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
593
594 /* enable VF vplan_qtable mappings */
595 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
596 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
597
598 /* map PF queues to VF queues */
599 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) {
600 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j);
601 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
602 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
603 total_queue_pairs++;
604 }
605
606 /* map PF queues to VSI */
607 for (j = 0; j < 7; j++) {
608 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) {
609 reg = 0x07FF07FF; /* unused */
610 } else {
611 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
612 j * 2);
613 reg = qid;
614 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
615 (j * 2) + 1);
616 reg |= qid << 16;
617 }
618 wr32(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), reg);
619 }
620
621 i40e_flush(hw);
622 }
623
624 /**
625 * i40e_disable_vf_mappings
626 * @vf: pointer to the VF info
627 *
628 * disable VF mappings
629 **/
630 static void i40e_disable_vf_mappings(struct i40e_vf *vf)
631 {
632 struct i40e_pf *pf = vf->pf;
633 struct i40e_hw *hw = &pf->hw;
634 int i;
635
636 /* disable qp mappings */
637 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
638 for (i = 0; i < I40E_MAX_VSI_QP; i++)
639 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
640 I40E_QUEUE_END_OF_LIST);
641 i40e_flush(hw);
642 }
643
644 /**
645 * i40e_free_vf_res
646 * @vf: pointer to the VF info
647 *
648 * free VF resources
649 **/
650 static void i40e_free_vf_res(struct i40e_vf *vf)
651 {
652 struct i40e_pf *pf = vf->pf;
653 struct i40e_hw *hw = &pf->hw;
654 u32 reg_idx, reg;
655 int i, msix_vf;
656
657 /* free vsi & disconnect it from the parent uplink */
658 if (vf->lan_vsi_idx) {
659 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
660 vf->lan_vsi_idx = 0;
661 vf->lan_vsi_id = 0;
662 }
663 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
664
665 /* disable interrupts so the VF starts in a known state */
666 for (i = 0; i < msix_vf; i++) {
667 /* format is same for both registers */
668 if (0 == i)
669 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
670 else
671 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
672 (vf->vf_id))
673 + (i - 1));
674 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
675 i40e_flush(hw);
676 }
677
678 /* clear the irq settings */
679 for (i = 0; i < msix_vf; i++) {
680 /* format is same for both registers */
681 if (0 == i)
682 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
683 else
684 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
685 (vf->vf_id))
686 + (i - 1));
687 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
688 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
689 wr32(hw, reg_idx, reg);
690 i40e_flush(hw);
691 }
692 /* reset some of the state varibles keeping
693 * track of the resources
694 */
695 vf->num_queue_pairs = 0;
696 vf->vf_states = 0;
697 }
698
699 /**
700 * i40e_alloc_vf_res
701 * @vf: pointer to the VF info
702 *
703 * allocate VF resources
704 **/
705 static int i40e_alloc_vf_res(struct i40e_vf *vf)
706 {
707 struct i40e_pf *pf = vf->pf;
708 int total_queue_pairs = 0;
709 int ret;
710
711 /* allocate hw vsi context & associated resources */
712 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
713 if (ret)
714 goto error_alloc;
715 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
716 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
717
718 /* store the total qps number for the runtime
719 * VF req validation
720 */
721 vf->num_queue_pairs = total_queue_pairs;
722
723 /* VF is now completely initialized */
724 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
725
726 error_alloc:
727 if (ret)
728 i40e_free_vf_res(vf);
729
730 return ret;
731 }
732
733 #define VF_DEVICE_STATUS 0xAA
734 #define VF_TRANS_PENDING_MASK 0x20
735 /**
736 * i40e_quiesce_vf_pci
737 * @vf: pointer to the VF structure
738 *
739 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
740 * if the transactions never clear.
741 **/
742 static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
743 {
744 struct i40e_pf *pf = vf->pf;
745 struct i40e_hw *hw = &pf->hw;
746 int vf_abs_id, i;
747 u32 reg;
748
749 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
750
751 wr32(hw, I40E_PF_PCI_CIAA,
752 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
753 for (i = 0; i < 100; i++) {
754 reg = rd32(hw, I40E_PF_PCI_CIAD);
755 if ((reg & VF_TRANS_PENDING_MASK) == 0)
756 return 0;
757 udelay(1);
758 }
759 return -EIO;
760 }
761
762 /**
763 * i40e_reset_vf
764 * @vf: pointer to the VF structure
765 * @flr: VFLR was issued or not
766 *
767 * reset the VF
768 **/
769 void i40e_reset_vf(struct i40e_vf *vf, bool flr)
770 {
771 struct i40e_pf *pf = vf->pf;
772 struct i40e_hw *hw = &pf->hw;
773 bool rsd = false;
774 int i;
775 u32 reg;
776
777 if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
778 return;
779
780 /* warn the VF */
781 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
782
783 /* In the case of a VFLR, the HW has already reset the VF and we
784 * just need to clean up, so don't hit the VFRTRIG register.
785 */
786 if (!flr) {
787 /* reset VF using VPGEN_VFRTRIG reg */
788 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
789 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
790 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
791 i40e_flush(hw);
792 }
793
794 if (i40e_quiesce_vf_pci(vf))
795 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
796 vf->vf_id);
797
798 /* poll VPGEN_VFRSTAT reg to make sure
799 * that reset is complete
800 */
801 for (i = 0; i < 10; i++) {
802 /* VF reset requires driver to first reset the VF and then
803 * poll the status register to make sure that the reset
804 * completed successfully. Due to internal HW FIFO flushes,
805 * we must wait 10ms before the register will be valid.
806 */
807 usleep_range(10000, 20000);
808 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
809 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
810 rsd = true;
811 break;
812 }
813 }
814
815 if (flr)
816 usleep_range(10000, 20000);
817
818 if (!rsd)
819 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
820 vf->vf_id);
821 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
822 /* clear the reset bit in the VPGEN_VFRTRIG reg */
823 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
824 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
825 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
826
827 /* On initial reset, we won't have any queues */
828 if (vf->lan_vsi_idx == 0)
829 goto complete_reset;
830
831 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false);
832 complete_reset:
833 /* reallocate VF resources to reset the VSI state */
834 i40e_free_vf_res(vf);
835 i40e_alloc_vf_res(vf);
836 i40e_enable_vf_mappings(vf);
837 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
838
839 /* tell the VF the reset is done */
840 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
841 i40e_flush(hw);
842 clear_bit(__I40E_VF_DISABLE, &pf->state);
843 }
844
845 /**
846 * i40e_free_vfs
847 * @pf: pointer to the PF structure
848 *
849 * free VF resources
850 **/
851 void i40e_free_vfs(struct i40e_pf *pf)
852 {
853 struct i40e_hw *hw = &pf->hw;
854 u32 reg_idx, bit_idx;
855 int i, tmp, vf_id;
856
857 if (!pf->vf)
858 return;
859 while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
860 usleep_range(1000, 2000);
861
862 for (i = 0; i < pf->num_alloc_vfs; i++)
863 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
864 i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
865 false);
866
867 /* Disable IOV before freeing resources. This lets any VF drivers
868 * running in the host get themselves cleaned up before we yank
869 * the carpet out from underneath their feet.
870 */
871 if (!pci_vfs_assigned(pf->pdev))
872 pci_disable_sriov(pf->pdev);
873 else
874 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
875
876 msleep(20); /* let any messages in transit get finished up */
877
878 /* free up VF resources */
879 tmp = pf->num_alloc_vfs;
880 pf->num_alloc_vfs = 0;
881 for (i = 0; i < tmp; i++) {
882 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
883 i40e_free_vf_res(&pf->vf[i]);
884 /* disable qp mappings */
885 i40e_disable_vf_mappings(&pf->vf[i]);
886 }
887
888 kfree(pf->vf);
889 pf->vf = NULL;
890
891 /* This check is for when the driver is unloaded while VFs are
892 * assigned. Setting the number of VFs to 0 through sysfs is caught
893 * before this function ever gets called.
894 */
895 if (!pci_vfs_assigned(pf->pdev)) {
896 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
897 * work correctly when SR-IOV gets re-enabled.
898 */
899 for (vf_id = 0; vf_id < tmp; vf_id++) {
900 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
901 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
902 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
903 }
904 }
905 clear_bit(__I40E_VF_DISABLE, &pf->state);
906 }
907
908 #ifdef CONFIG_PCI_IOV
909 /**
910 * i40e_alloc_vfs
911 * @pf: pointer to the PF structure
912 * @num_alloc_vfs: number of VFs to allocate
913 *
914 * allocate VF resources
915 **/
916 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
917 {
918 struct i40e_vf *vfs;
919 int i, ret = 0;
920
921 /* Disable interrupt 0 so we don't try to handle the VFLR. */
922 i40e_irq_dynamic_disable_icr0(pf);
923
924 /* Check to see if we're just allocating resources for extant VFs */
925 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
926 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
927 if (ret) {
928 dev_err(&pf->pdev->dev,
929 "Failed to enable SR-IOV, error %d.\n", ret);
930 pf->num_alloc_vfs = 0;
931 goto err_iov;
932 }
933 }
934 /* allocate memory */
935 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
936 if (!vfs) {
937 ret = -ENOMEM;
938 goto err_alloc;
939 }
940 pf->vf = vfs;
941
942 /* apply default profile */
943 for (i = 0; i < num_alloc_vfs; i++) {
944 vfs[i].pf = pf;
945 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
946 vfs[i].vf_id = i;
947
948 /* assign default capabilities */
949 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
950 vfs[i].spoofchk = true;
951 /* VF resources get allocated during reset */
952 i40e_reset_vf(&vfs[i], false);
953
954 /* enable VF vplan_qtable mappings */
955 i40e_enable_vf_mappings(&vfs[i]);
956 }
957 pf->num_alloc_vfs = num_alloc_vfs;
958
959 err_alloc:
960 if (ret)
961 i40e_free_vfs(pf);
962 err_iov:
963 /* Re-enable interrupt 0. */
964 i40e_irq_dynamic_enable_icr0(pf);
965 return ret;
966 }
967
968 #endif
969 /**
970 * i40e_pci_sriov_enable
971 * @pdev: pointer to a pci_dev structure
972 * @num_vfs: number of VFs to allocate
973 *
974 * Enable or change the number of VFs
975 **/
976 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
977 {
978 #ifdef CONFIG_PCI_IOV
979 struct i40e_pf *pf = pci_get_drvdata(pdev);
980 int pre_existing_vfs = pci_num_vf(pdev);
981 int err = 0;
982
983 if (pf->state & __I40E_TESTING) {
984 dev_warn(&pdev->dev,
985 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
986 err = -EPERM;
987 goto err_out;
988 }
989
990 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
991 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
992 i40e_free_vfs(pf);
993 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
994 goto out;
995
996 if (num_vfs > pf->num_req_vfs) {
997 err = -EPERM;
998 goto err_out;
999 }
1000
1001 err = i40e_alloc_vfs(pf, num_vfs);
1002 if (err) {
1003 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1004 goto err_out;
1005 }
1006
1007 out:
1008 return num_vfs;
1009
1010 err_out:
1011 return err;
1012 #endif
1013 return 0;
1014 }
1015
1016 /**
1017 * i40e_pci_sriov_configure
1018 * @pdev: pointer to a pci_dev structure
1019 * @num_vfs: number of VFs to allocate
1020 *
1021 * Enable or change the number of VFs. Called when the user updates the number
1022 * of VFs in sysfs.
1023 **/
1024 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1025 {
1026 struct i40e_pf *pf = pci_get_drvdata(pdev);
1027
1028 if (num_vfs) {
1029 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1030 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1031 i40e_do_reset_safe(pf,
1032 BIT_ULL(__I40E_PF_RESET_REQUESTED));
1033 }
1034 return i40e_pci_sriov_enable(pdev, num_vfs);
1035 }
1036
1037 if (!pci_vfs_assigned(pf->pdev)) {
1038 i40e_free_vfs(pf);
1039 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1040 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
1041 } else {
1042 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1043 return -EINVAL;
1044 }
1045 return 0;
1046 }
1047
1048 /***********************virtual channel routines******************/
1049
1050 /**
1051 * i40e_vc_send_msg_to_vf
1052 * @vf: pointer to the VF info
1053 * @v_opcode: virtual channel opcode
1054 * @v_retval: virtual channel return value
1055 * @msg: pointer to the msg buffer
1056 * @msglen: msg length
1057 *
1058 * send msg to VF
1059 **/
1060 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1061 u32 v_retval, u8 *msg, u16 msglen)
1062 {
1063 struct i40e_pf *pf;
1064 struct i40e_hw *hw;
1065 int abs_vf_id;
1066 i40e_status aq_ret;
1067
1068 /* validate the request */
1069 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1070 return -EINVAL;
1071
1072 pf = vf->pf;
1073 hw = &pf->hw;
1074 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1075
1076 /* single place to detect unsuccessful return values */
1077 if (v_retval) {
1078 vf->num_invalid_msgs++;
1079 dev_err(&pf->pdev->dev, "Failed opcode %d Error: %d\n",
1080 v_opcode, v_retval);
1081 if (vf->num_invalid_msgs >
1082 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1083 dev_err(&pf->pdev->dev,
1084 "Number of invalid messages exceeded for VF %d\n",
1085 vf->vf_id);
1086 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1087 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1088 }
1089 } else {
1090 vf->num_valid_msgs++;
1091 }
1092
1093 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1094 msg, msglen, NULL);
1095 if (aq_ret) {
1096 dev_err(&pf->pdev->dev,
1097 "Unable to send the message to VF %d aq_err %d\n",
1098 vf->vf_id, pf->hw.aq.asq_last_status);
1099 return -EIO;
1100 }
1101
1102 return 0;
1103 }
1104
1105 /**
1106 * i40e_vc_send_resp_to_vf
1107 * @vf: pointer to the VF info
1108 * @opcode: operation code
1109 * @retval: return value
1110 *
1111 * send resp msg to VF
1112 **/
1113 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1114 enum i40e_virtchnl_ops opcode,
1115 i40e_status retval)
1116 {
1117 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1118 }
1119
1120 /**
1121 * i40e_vc_get_version_msg
1122 * @vf: pointer to the VF info
1123 *
1124 * called from the VF to request the API version used by the PF
1125 **/
1126 static int i40e_vc_get_version_msg(struct i40e_vf *vf)
1127 {
1128 struct i40e_virtchnl_version_info info = {
1129 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1130 };
1131
1132 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1133 I40E_SUCCESS, (u8 *)&info,
1134 sizeof(struct
1135 i40e_virtchnl_version_info));
1136 }
1137
1138 /**
1139 * i40e_vc_get_vf_resources_msg
1140 * @vf: pointer to the VF info
1141 * @msg: pointer to the msg buffer
1142 * @msglen: msg length
1143 *
1144 * called from the VF to request its resources
1145 **/
1146 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf)
1147 {
1148 struct i40e_virtchnl_vf_resource *vfres = NULL;
1149 struct i40e_pf *pf = vf->pf;
1150 i40e_status aq_ret = 0;
1151 struct i40e_vsi *vsi;
1152 int i = 0, len = 0;
1153 int num_vsis = 1;
1154 int ret;
1155
1156 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1157 aq_ret = I40E_ERR_PARAM;
1158 goto err;
1159 }
1160
1161 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1162 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1163
1164 vfres = kzalloc(len, GFP_KERNEL);
1165 if (!vfres) {
1166 aq_ret = I40E_ERR_NO_MEMORY;
1167 len = 0;
1168 goto err;
1169 }
1170
1171 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1172 vsi = pf->vsi[vf->lan_vsi_idx];
1173 if (!vsi->info.pvid)
1174 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1175
1176 vfres->num_vsis = num_vsis;
1177 vfres->num_queue_pairs = vf->num_queue_pairs;
1178 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1179 if (vf->lan_vsi_idx) {
1180 vfres->vsi_res[i].vsi_id = vf->lan_vsi_id;
1181 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1182 vfres->vsi_res[i].num_queue_pairs =
1183 pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
1184 memcpy(vfres->vsi_res[i].default_mac_addr,
1185 vf->default_lan_addr.addr, ETH_ALEN);
1186 i++;
1187 }
1188 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1189
1190 err:
1191 /* send the response back to the VF */
1192 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1193 aq_ret, (u8 *)vfres, len);
1194
1195 kfree(vfres);
1196 return ret;
1197 }
1198
1199 /**
1200 * i40e_vc_reset_vf_msg
1201 * @vf: pointer to the VF info
1202 * @msg: pointer to the msg buffer
1203 * @msglen: msg length
1204 *
1205 * called from the VF to reset itself,
1206 * unlike other virtchnl messages, PF driver
1207 * doesn't send the response back to the VF
1208 **/
1209 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1210 {
1211 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1212 i40e_reset_vf(vf, false);
1213 }
1214
1215 /**
1216 * i40e_vc_config_promiscuous_mode_msg
1217 * @vf: pointer to the VF info
1218 * @msg: pointer to the msg buffer
1219 * @msglen: msg length
1220 *
1221 * called from the VF to configure the promiscuous mode of
1222 * VF vsis
1223 **/
1224 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1225 u8 *msg, u16 msglen)
1226 {
1227 struct i40e_virtchnl_promisc_info *info =
1228 (struct i40e_virtchnl_promisc_info *)msg;
1229 struct i40e_pf *pf = vf->pf;
1230 struct i40e_hw *hw = &pf->hw;
1231 struct i40e_vsi *vsi;
1232 bool allmulti = false;
1233 i40e_status aq_ret;
1234
1235 vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1236 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1237 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1238 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1239 (vsi->type != I40E_VSI_FCOE)) {
1240 aq_ret = I40E_ERR_PARAM;
1241 goto error_param;
1242 }
1243 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1244 allmulti = true;
1245 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
1246 allmulti, NULL);
1247
1248 error_param:
1249 /* send the response to the VF */
1250 return i40e_vc_send_resp_to_vf(vf,
1251 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1252 aq_ret);
1253 }
1254
1255 /**
1256 * i40e_vc_config_queues_msg
1257 * @vf: pointer to the VF info
1258 * @msg: pointer to the msg buffer
1259 * @msglen: msg length
1260 *
1261 * called from the VF to configure the rx/tx
1262 * queues
1263 **/
1264 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1265 {
1266 struct i40e_virtchnl_vsi_queue_config_info *qci =
1267 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1268 struct i40e_virtchnl_queue_pair_info *qpi;
1269 struct i40e_pf *pf = vf->pf;
1270 u16 vsi_id, vsi_queue_id;
1271 i40e_status aq_ret = 0;
1272 int i;
1273
1274 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1275 aq_ret = I40E_ERR_PARAM;
1276 goto error_param;
1277 }
1278
1279 vsi_id = qci->vsi_id;
1280 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1281 aq_ret = I40E_ERR_PARAM;
1282 goto error_param;
1283 }
1284 for (i = 0; i < qci->num_queue_pairs; i++) {
1285 qpi = &qci->qpair[i];
1286 vsi_queue_id = qpi->txq.queue_id;
1287 if ((qpi->txq.vsi_id != vsi_id) ||
1288 (qpi->rxq.vsi_id != vsi_id) ||
1289 (qpi->rxq.queue_id != vsi_queue_id) ||
1290 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1291 aq_ret = I40E_ERR_PARAM;
1292 goto error_param;
1293 }
1294
1295 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1296 &qpi->rxq) ||
1297 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1298 &qpi->txq)) {
1299 aq_ret = I40E_ERR_PARAM;
1300 goto error_param;
1301 }
1302 }
1303 /* set vsi num_queue_pairs in use to num configured by VF */
1304 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1305
1306 error_param:
1307 /* send the response to the VF */
1308 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1309 aq_ret);
1310 }
1311
1312 /**
1313 * i40e_vc_config_irq_map_msg
1314 * @vf: pointer to the VF info
1315 * @msg: pointer to the msg buffer
1316 * @msglen: msg length
1317 *
1318 * called from the VF to configure the irq to
1319 * queue map
1320 **/
1321 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1322 {
1323 struct i40e_virtchnl_irq_map_info *irqmap_info =
1324 (struct i40e_virtchnl_irq_map_info *)msg;
1325 struct i40e_virtchnl_vector_map *map;
1326 u16 vsi_id, vsi_queue_id, vector_id;
1327 i40e_status aq_ret = 0;
1328 unsigned long tempmap;
1329 int i;
1330
1331 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1332 aq_ret = I40E_ERR_PARAM;
1333 goto error_param;
1334 }
1335
1336 for (i = 0; i < irqmap_info->num_vectors; i++) {
1337 map = &irqmap_info->vecmap[i];
1338
1339 vector_id = map->vector_id;
1340 vsi_id = map->vsi_id;
1341 /* validate msg params */
1342 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1343 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1344 aq_ret = I40E_ERR_PARAM;
1345 goto error_param;
1346 }
1347
1348 /* lookout for the invalid queue index */
1349 tempmap = map->rxq_map;
1350 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1351 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1352 vsi_queue_id)) {
1353 aq_ret = I40E_ERR_PARAM;
1354 goto error_param;
1355 }
1356 }
1357
1358 tempmap = map->txq_map;
1359 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1360 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1361 vsi_queue_id)) {
1362 aq_ret = I40E_ERR_PARAM;
1363 goto error_param;
1364 }
1365 }
1366
1367 i40e_config_irq_link_list(vf, vsi_id, map);
1368 }
1369 error_param:
1370 /* send the response to the VF */
1371 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1372 aq_ret);
1373 }
1374
1375 /**
1376 * i40e_vc_enable_queues_msg
1377 * @vf: pointer to the VF info
1378 * @msg: pointer to the msg buffer
1379 * @msglen: msg length
1380 *
1381 * called from the VF to enable all or specific queue(s)
1382 **/
1383 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1384 {
1385 struct i40e_virtchnl_queue_select *vqs =
1386 (struct i40e_virtchnl_queue_select *)msg;
1387 struct i40e_pf *pf = vf->pf;
1388 u16 vsi_id = vqs->vsi_id;
1389 i40e_status aq_ret = 0;
1390
1391 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1392 aq_ret = I40E_ERR_PARAM;
1393 goto error_param;
1394 }
1395
1396 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1397 aq_ret = I40E_ERR_PARAM;
1398 goto error_param;
1399 }
1400
1401 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1402 aq_ret = I40E_ERR_PARAM;
1403 goto error_param;
1404 }
1405
1406 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true))
1407 aq_ret = I40E_ERR_TIMEOUT;
1408 error_param:
1409 /* send the response to the VF */
1410 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1411 aq_ret);
1412 }
1413
1414 /**
1415 * i40e_vc_disable_queues_msg
1416 * @vf: pointer to the VF info
1417 * @msg: pointer to the msg buffer
1418 * @msglen: msg length
1419 *
1420 * called from the VF to disable all or specific
1421 * queue(s)
1422 **/
1423 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1424 {
1425 struct i40e_virtchnl_queue_select *vqs =
1426 (struct i40e_virtchnl_queue_select *)msg;
1427 struct i40e_pf *pf = vf->pf;
1428 i40e_status aq_ret = 0;
1429
1430 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1431 aq_ret = I40E_ERR_PARAM;
1432 goto error_param;
1433 }
1434
1435 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1436 aq_ret = I40E_ERR_PARAM;
1437 goto error_param;
1438 }
1439
1440 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1441 aq_ret = I40E_ERR_PARAM;
1442 goto error_param;
1443 }
1444
1445 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false))
1446 aq_ret = I40E_ERR_TIMEOUT;
1447
1448 error_param:
1449 /* send the response to the VF */
1450 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1451 aq_ret);
1452 }
1453
1454 /**
1455 * i40e_vc_get_stats_msg
1456 * @vf: pointer to the VF info
1457 * @msg: pointer to the msg buffer
1458 * @msglen: msg length
1459 *
1460 * called from the VF to get vsi stats
1461 **/
1462 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1463 {
1464 struct i40e_virtchnl_queue_select *vqs =
1465 (struct i40e_virtchnl_queue_select *)msg;
1466 struct i40e_pf *pf = vf->pf;
1467 struct i40e_eth_stats stats;
1468 i40e_status aq_ret = 0;
1469 struct i40e_vsi *vsi;
1470
1471 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1472
1473 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1474 aq_ret = I40E_ERR_PARAM;
1475 goto error_param;
1476 }
1477
1478 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1479 aq_ret = I40E_ERR_PARAM;
1480 goto error_param;
1481 }
1482
1483 vsi = pf->vsi[vf->lan_vsi_idx];
1484 if (!vsi) {
1485 aq_ret = I40E_ERR_PARAM;
1486 goto error_param;
1487 }
1488 i40e_update_eth_stats(vsi);
1489 stats = vsi->eth_stats;
1490
1491 error_param:
1492 /* send the response back to the VF */
1493 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1494 (u8 *)&stats, sizeof(stats));
1495 }
1496
1497 /**
1498 * i40e_check_vf_permission
1499 * @vf: pointer to the VF info
1500 * @macaddr: pointer to the MAC Address being checked
1501 *
1502 * Check if the VF has permission to add or delete unicast MAC address
1503 * filters and return error code -EPERM if not. Then check if the
1504 * address filter requested is broadcast or zero and if so return
1505 * an invalid MAC address error code.
1506 **/
1507 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1508 {
1509 struct i40e_pf *pf = vf->pf;
1510 int ret = 0;
1511
1512 if (is_broadcast_ether_addr(macaddr) ||
1513 is_zero_ether_addr(macaddr)) {
1514 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1515 ret = I40E_ERR_INVALID_MAC_ADDR;
1516 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1517 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1518 /* If the host VMM administrator has set the VF MAC address
1519 * administratively via the ndo_set_vf_mac command then deny
1520 * permission to the VF to add or delete unicast MAC addresses.
1521 * The VF may request to set the MAC address filter already
1522 * assigned to it so do not return an error in that case.
1523 */
1524 dev_err(&pf->pdev->dev,
1525 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
1526 ret = -EPERM;
1527 }
1528 return ret;
1529 }
1530
1531 /**
1532 * i40e_vc_add_mac_addr_msg
1533 * @vf: pointer to the VF info
1534 * @msg: pointer to the msg buffer
1535 * @msglen: msg length
1536 *
1537 * add guest mac address filter
1538 **/
1539 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1540 {
1541 struct i40e_virtchnl_ether_addr_list *al =
1542 (struct i40e_virtchnl_ether_addr_list *)msg;
1543 struct i40e_pf *pf = vf->pf;
1544 struct i40e_vsi *vsi = NULL;
1545 u16 vsi_id = al->vsi_id;
1546 i40e_status ret = 0;
1547 int i;
1548
1549 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1550 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1551 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1552 ret = I40E_ERR_PARAM;
1553 goto error_param;
1554 }
1555
1556 for (i = 0; i < al->num_elements; i++) {
1557 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1558 if (ret)
1559 goto error_param;
1560 }
1561 vsi = pf->vsi[vf->lan_vsi_idx];
1562
1563 /* add new addresses to the list */
1564 for (i = 0; i < al->num_elements; i++) {
1565 struct i40e_mac_filter *f;
1566
1567 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1568 if (!f) {
1569 if (i40e_is_vsi_in_vlan(vsi))
1570 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1571 true, false);
1572 else
1573 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1574 true, false);
1575 }
1576
1577 if (!f) {
1578 dev_err(&pf->pdev->dev,
1579 "Unable to add VF MAC filter\n");
1580 ret = I40E_ERR_PARAM;
1581 goto error_param;
1582 }
1583 }
1584
1585 /* program the updated filter list */
1586 if (i40e_sync_vsi_filters(vsi))
1587 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1588
1589 error_param:
1590 /* send the response to the VF */
1591 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1592 ret);
1593 }
1594
1595 /**
1596 * i40e_vc_del_mac_addr_msg
1597 * @vf: pointer to the VF info
1598 * @msg: pointer to the msg buffer
1599 * @msglen: msg length
1600 *
1601 * remove guest mac address filter
1602 **/
1603 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1604 {
1605 struct i40e_virtchnl_ether_addr_list *al =
1606 (struct i40e_virtchnl_ether_addr_list *)msg;
1607 struct i40e_pf *pf = vf->pf;
1608 struct i40e_vsi *vsi = NULL;
1609 u16 vsi_id = al->vsi_id;
1610 i40e_status ret = 0;
1611 int i;
1612
1613 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1614 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1615 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1616 ret = I40E_ERR_PARAM;
1617 goto error_param;
1618 }
1619
1620 for (i = 0; i < al->num_elements; i++) {
1621 if (is_broadcast_ether_addr(al->list[i].addr) ||
1622 is_zero_ether_addr(al->list[i].addr)) {
1623 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
1624 al->list[i].addr);
1625 ret = I40E_ERR_INVALID_MAC_ADDR;
1626 goto error_param;
1627 }
1628 }
1629 vsi = pf->vsi[vf->lan_vsi_idx];
1630
1631 /* delete addresses from the list */
1632 for (i = 0; i < al->num_elements; i++)
1633 i40e_del_filter(vsi, al->list[i].addr,
1634 I40E_VLAN_ANY, true, false);
1635
1636 /* program the updated filter list */
1637 if (i40e_sync_vsi_filters(vsi))
1638 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1639
1640 error_param:
1641 /* send the response to the VF */
1642 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
1643 ret);
1644 }
1645
1646 /**
1647 * i40e_vc_add_vlan_msg
1648 * @vf: pointer to the VF info
1649 * @msg: pointer to the msg buffer
1650 * @msglen: msg length
1651 *
1652 * program guest vlan id
1653 **/
1654 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1655 {
1656 struct i40e_virtchnl_vlan_filter_list *vfl =
1657 (struct i40e_virtchnl_vlan_filter_list *)msg;
1658 struct i40e_pf *pf = vf->pf;
1659 struct i40e_vsi *vsi = NULL;
1660 u16 vsi_id = vfl->vsi_id;
1661 i40e_status aq_ret = 0;
1662 int i;
1663
1664 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1665 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1666 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1667 aq_ret = I40E_ERR_PARAM;
1668 goto error_param;
1669 }
1670
1671 for (i = 0; i < vfl->num_elements; i++) {
1672 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1673 aq_ret = I40E_ERR_PARAM;
1674 dev_err(&pf->pdev->dev,
1675 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1676 goto error_param;
1677 }
1678 }
1679 vsi = pf->vsi[vf->lan_vsi_idx];
1680 if (vsi->info.pvid) {
1681 aq_ret = I40E_ERR_PARAM;
1682 goto error_param;
1683 }
1684
1685 i40e_vlan_stripping_enable(vsi);
1686 for (i = 0; i < vfl->num_elements; i++) {
1687 /* add new VLAN filter */
1688 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1689 if (ret)
1690 dev_err(&pf->pdev->dev,
1691 "Unable to add VF vlan filter %d, error %d\n",
1692 vfl->vlan_id[i], ret);
1693 }
1694
1695 error_param:
1696 /* send the response to the VF */
1697 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1698 }
1699
1700 /**
1701 * i40e_vc_remove_vlan_msg
1702 * @vf: pointer to the VF info
1703 * @msg: pointer to the msg buffer
1704 * @msglen: msg length
1705 *
1706 * remove programmed guest vlan id
1707 **/
1708 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1709 {
1710 struct i40e_virtchnl_vlan_filter_list *vfl =
1711 (struct i40e_virtchnl_vlan_filter_list *)msg;
1712 struct i40e_pf *pf = vf->pf;
1713 struct i40e_vsi *vsi = NULL;
1714 u16 vsi_id = vfl->vsi_id;
1715 i40e_status aq_ret = 0;
1716 int i;
1717
1718 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1719 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1720 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1721 aq_ret = I40E_ERR_PARAM;
1722 goto error_param;
1723 }
1724
1725 for (i = 0; i < vfl->num_elements; i++) {
1726 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1727 aq_ret = I40E_ERR_PARAM;
1728 goto error_param;
1729 }
1730 }
1731
1732 vsi = pf->vsi[vf->lan_vsi_idx];
1733 if (vsi->info.pvid) {
1734 aq_ret = I40E_ERR_PARAM;
1735 goto error_param;
1736 }
1737
1738 for (i = 0; i < vfl->num_elements; i++) {
1739 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1740 if (ret)
1741 dev_err(&pf->pdev->dev,
1742 "Unable to delete VF vlan filter %d, error %d\n",
1743 vfl->vlan_id[i], ret);
1744 }
1745
1746 error_param:
1747 /* send the response to the VF */
1748 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1749 }
1750
1751 /**
1752 * i40e_vc_validate_vf_msg
1753 * @vf: pointer to the VF info
1754 * @msg: pointer to the msg buffer
1755 * @msglen: msg length
1756 * @msghndl: msg handle
1757 *
1758 * validate msg
1759 **/
1760 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
1761 u32 v_retval, u8 *msg, u16 msglen)
1762 {
1763 bool err_msg_format = false;
1764 int valid_len;
1765
1766 /* Check if VF is disabled. */
1767 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
1768 return I40E_ERR_PARAM;
1769
1770 /* Validate message length. */
1771 switch (v_opcode) {
1772 case I40E_VIRTCHNL_OP_VERSION:
1773 valid_len = sizeof(struct i40e_virtchnl_version_info);
1774 break;
1775 case I40E_VIRTCHNL_OP_RESET_VF:
1776 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1777 valid_len = 0;
1778 break;
1779 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
1780 valid_len = sizeof(struct i40e_virtchnl_txq_info);
1781 break;
1782 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
1783 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
1784 break;
1785 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1786 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
1787 if (msglen >= valid_len) {
1788 struct i40e_virtchnl_vsi_queue_config_info *vqc =
1789 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1790 valid_len += (vqc->num_queue_pairs *
1791 sizeof(struct
1792 i40e_virtchnl_queue_pair_info));
1793 if (vqc->num_queue_pairs == 0)
1794 err_msg_format = true;
1795 }
1796 break;
1797 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1798 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
1799 if (msglen >= valid_len) {
1800 struct i40e_virtchnl_irq_map_info *vimi =
1801 (struct i40e_virtchnl_irq_map_info *)msg;
1802 valid_len += (vimi->num_vectors *
1803 sizeof(struct i40e_virtchnl_vector_map));
1804 if (vimi->num_vectors == 0)
1805 err_msg_format = true;
1806 }
1807 break;
1808 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1809 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1810 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1811 break;
1812 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1813 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1814 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
1815 if (msglen >= valid_len) {
1816 struct i40e_virtchnl_ether_addr_list *veal =
1817 (struct i40e_virtchnl_ether_addr_list *)msg;
1818 valid_len += veal->num_elements *
1819 sizeof(struct i40e_virtchnl_ether_addr);
1820 if (veal->num_elements == 0)
1821 err_msg_format = true;
1822 }
1823 break;
1824 case I40E_VIRTCHNL_OP_ADD_VLAN:
1825 case I40E_VIRTCHNL_OP_DEL_VLAN:
1826 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
1827 if (msglen >= valid_len) {
1828 struct i40e_virtchnl_vlan_filter_list *vfl =
1829 (struct i40e_virtchnl_vlan_filter_list *)msg;
1830 valid_len += vfl->num_elements * sizeof(u16);
1831 if (vfl->num_elements == 0)
1832 err_msg_format = true;
1833 }
1834 break;
1835 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1836 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
1837 break;
1838 case I40E_VIRTCHNL_OP_GET_STATS:
1839 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1840 break;
1841 /* These are always errors coming from the VF. */
1842 case I40E_VIRTCHNL_OP_EVENT:
1843 case I40E_VIRTCHNL_OP_UNKNOWN:
1844 default:
1845 return -EPERM;
1846 break;
1847 }
1848 /* few more checks */
1849 if ((valid_len != msglen) || (err_msg_format)) {
1850 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
1851 return -EINVAL;
1852 } else {
1853 return 0;
1854 }
1855 }
1856
1857 /**
1858 * i40e_vc_process_vf_msg
1859 * @pf: pointer to the PF structure
1860 * @vf_id: source VF id
1861 * @msg: pointer to the msg buffer
1862 * @msglen: msg length
1863 * @msghndl: msg handle
1864 *
1865 * called from the common aeq/arq handler to
1866 * process request from VF
1867 **/
1868 int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
1869 u32 v_retval, u8 *msg, u16 msglen)
1870 {
1871 struct i40e_hw *hw = &pf->hw;
1872 unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
1873 struct i40e_vf *vf;
1874 int ret;
1875
1876 pf->vf_aq_requests++;
1877 if (local_vf_id >= pf->num_alloc_vfs)
1878 return -EINVAL;
1879 vf = &(pf->vf[local_vf_id]);
1880 /* perform basic checks on the msg */
1881 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
1882
1883 if (ret) {
1884 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
1885 local_vf_id, v_opcode, msglen);
1886 return ret;
1887 }
1888
1889 switch (v_opcode) {
1890 case I40E_VIRTCHNL_OP_VERSION:
1891 ret = i40e_vc_get_version_msg(vf);
1892 break;
1893 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1894 ret = i40e_vc_get_vf_resources_msg(vf);
1895 break;
1896 case I40E_VIRTCHNL_OP_RESET_VF:
1897 i40e_vc_reset_vf_msg(vf);
1898 ret = 0;
1899 break;
1900 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1901 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
1902 break;
1903 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1904 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
1905 break;
1906 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1907 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
1908 break;
1909 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1910 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
1911 i40e_vc_notify_vf_link_state(vf);
1912 break;
1913 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1914 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
1915 break;
1916 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1917 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
1918 break;
1919 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1920 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
1921 break;
1922 case I40E_VIRTCHNL_OP_ADD_VLAN:
1923 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
1924 break;
1925 case I40E_VIRTCHNL_OP_DEL_VLAN:
1926 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
1927 break;
1928 case I40E_VIRTCHNL_OP_GET_STATS:
1929 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
1930 break;
1931 case I40E_VIRTCHNL_OP_UNKNOWN:
1932 default:
1933 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
1934 v_opcode, local_vf_id);
1935 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
1936 I40E_ERR_NOT_IMPLEMENTED);
1937 break;
1938 }
1939
1940 return ret;
1941 }
1942
1943 /**
1944 * i40e_vc_process_vflr_event
1945 * @pf: pointer to the PF structure
1946 *
1947 * called from the vlfr irq handler to
1948 * free up VF resources and state variables
1949 **/
1950 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
1951 {
1952 u32 reg, reg_idx, bit_idx, vf_id;
1953 struct i40e_hw *hw = &pf->hw;
1954 struct i40e_vf *vf;
1955
1956 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
1957 return 0;
1958
1959 /* re-enable vflr interrupt cause */
1960 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
1961 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
1962 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
1963 i40e_flush(hw);
1964
1965 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
1966 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
1967 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1968 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1969 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
1970 vf = &pf->vf[vf_id];
1971 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
1972 if (reg & (1 << bit_idx)) {
1973 /* clear the bit in GLGEN_VFLRSTAT */
1974 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
1975
1976 if (!test_bit(__I40E_DOWN, &pf->state))
1977 i40e_reset_vf(vf, true);
1978 }
1979 }
1980
1981 return 0;
1982 }
1983
1984 /**
1985 * i40e_ndo_set_vf_mac
1986 * @netdev: network interface device structure
1987 * @vf_id: VF identifier
1988 * @mac: mac address
1989 *
1990 * program VF mac address
1991 **/
1992 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
1993 {
1994 struct i40e_netdev_priv *np = netdev_priv(netdev);
1995 struct i40e_vsi *vsi = np->vsi;
1996 struct i40e_pf *pf = vsi->back;
1997 struct i40e_mac_filter *f;
1998 struct i40e_vf *vf;
1999 int ret = 0;
2000
2001 /* validate the request */
2002 if (vf_id >= pf->num_alloc_vfs) {
2003 dev_err(&pf->pdev->dev,
2004 "Invalid VF Identifier %d\n", vf_id);
2005 ret = -EINVAL;
2006 goto error_param;
2007 }
2008
2009 vf = &(pf->vf[vf_id]);
2010 vsi = pf->vsi[vf->lan_vsi_idx];
2011 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2012 dev_err(&pf->pdev->dev,
2013 "Uninitialized VF %d\n", vf_id);
2014 ret = -EINVAL;
2015 goto error_param;
2016 }
2017
2018 if (!is_valid_ether_addr(mac)) {
2019 dev_err(&pf->pdev->dev,
2020 "Invalid VF ethernet address\n");
2021 ret = -EINVAL;
2022 goto error_param;
2023 }
2024
2025 /* delete the temporary mac address */
2026 i40e_del_filter(vsi, vf->default_lan_addr.addr, vf->port_vlan_id,
2027 true, false);
2028
2029 /* Delete all the filters for this VSI - we're going to kill it
2030 * anyway.
2031 */
2032 list_for_each_entry(f, &vsi->mac_filter_list, list)
2033 i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);
2034
2035 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2036 /* program mac filter */
2037 if (i40e_sync_vsi_filters(vsi)) {
2038 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2039 ret = -EIO;
2040 goto error_param;
2041 }
2042 ether_addr_copy(vf->default_lan_addr.addr, mac);
2043 vf->pf_set_mac = true;
2044 /* Force the VF driver stop so it has to reload with new MAC address */
2045 i40e_vc_disable_vf(pf, vf);
2046 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2047
2048 error_param:
2049 return ret;
2050 }
2051
2052 /**
2053 * i40e_ndo_set_vf_port_vlan
2054 * @netdev: network interface device structure
2055 * @vf_id: VF identifier
2056 * @vlan_id: mac address
2057 * @qos: priority setting
2058 *
2059 * program VF vlan id and/or qos
2060 **/
2061 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2062 int vf_id, u16 vlan_id, u8 qos)
2063 {
2064 struct i40e_netdev_priv *np = netdev_priv(netdev);
2065 struct i40e_pf *pf = np->vsi->back;
2066 struct i40e_vsi *vsi;
2067 struct i40e_vf *vf;
2068 int ret = 0;
2069
2070 /* validate the request */
2071 if (vf_id >= pf->num_alloc_vfs) {
2072 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2073 ret = -EINVAL;
2074 goto error_pvid;
2075 }
2076
2077 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2078 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2079 ret = -EINVAL;
2080 goto error_pvid;
2081 }
2082
2083 vf = &(pf->vf[vf_id]);
2084 vsi = pf->vsi[vf->lan_vsi_idx];
2085 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2086 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2087 ret = -EINVAL;
2088 goto error_pvid;
2089 }
2090
2091 if (vsi->info.pvid == 0 && i40e_is_vsi_in_vlan(vsi)) {
2092 dev_err(&pf->pdev->dev,
2093 "VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n",
2094 vf_id);
2095 /* Administrator Error - knock the VF offline until he does
2096 * the right thing by reconfiguring his network correctly
2097 * and then reloading the VF driver.
2098 */
2099 i40e_vc_disable_vf(pf, vf);
2100 }
2101
2102 /* Check for condition where there was already a port VLAN ID
2103 * filter set and now it is being deleted by setting it to zero.
2104 * Additionally check for the condition where there was a port
2105 * VLAN but now there is a new and different port VLAN being set.
2106 * Before deleting all the old VLAN filters we must add new ones
2107 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2108 * MAC addresses deleted.
2109 */
2110 if ((!(vlan_id || qos) ||
2111 (vlan_id | qos) != le16_to_cpu(vsi->info.pvid)) &&
2112 vsi->info.pvid)
2113 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
2114
2115 if (vsi->info.pvid) {
2116 /* kill old VLAN */
2117 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2118 VLAN_VID_MASK));
2119 if (ret) {
2120 dev_info(&vsi->back->pdev->dev,
2121 "remove VLAN failed, ret=%d, aq_err=%d\n",
2122 ret, pf->hw.aq.asq_last_status);
2123 }
2124 }
2125 if (vlan_id || qos)
2126 ret = i40e_vsi_add_pvid(vsi,
2127 vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT));
2128 else
2129 i40e_vsi_remove_pvid(vsi);
2130
2131 if (vlan_id) {
2132 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2133 vlan_id, qos, vf_id);
2134
2135 /* add new VLAN filter */
2136 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2137 if (ret) {
2138 dev_info(&vsi->back->pdev->dev,
2139 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2140 vsi->back->hw.aq.asq_last_status);
2141 goto error_pvid;
2142 }
2143 /* Kill non-vlan MAC filters - ignore error return since
2144 * there might not be any non-vlan MAC filters.
2145 */
2146 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
2147 }
2148
2149 if (ret) {
2150 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2151 goto error_pvid;
2152 }
2153 /* The Port VLAN needs to be saved across resets the same as the
2154 * default LAN MAC address.
2155 */
2156 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2157 ret = 0;
2158
2159 error_pvid:
2160 return ret;
2161 }
2162
2163 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
2164 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
2165 /**
2166 * i40e_ndo_set_vf_bw
2167 * @netdev: network interface device structure
2168 * @vf_id: VF identifier
2169 * @tx_rate: Tx rate
2170 *
2171 * configure VF Tx rate
2172 **/
2173 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
2174 int max_tx_rate)
2175 {
2176 struct i40e_netdev_priv *np = netdev_priv(netdev);
2177 struct i40e_pf *pf = np->vsi->back;
2178 struct i40e_vsi *vsi;
2179 struct i40e_vf *vf;
2180 int speed = 0;
2181 int ret = 0;
2182
2183 /* validate the request */
2184 if (vf_id >= pf->num_alloc_vfs) {
2185 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
2186 ret = -EINVAL;
2187 goto error;
2188 }
2189
2190 if (min_tx_rate) {
2191 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
2192 min_tx_rate, vf_id);
2193 return -EINVAL;
2194 }
2195
2196 vf = &(pf->vf[vf_id]);
2197 vsi = pf->vsi[vf->lan_vsi_idx];
2198 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2199 dev_err(&pf->pdev->dev, "Uninitialized VF %d.\n", vf_id);
2200 ret = -EINVAL;
2201 goto error;
2202 }
2203
2204 switch (pf->hw.phy.link_info.link_speed) {
2205 case I40E_LINK_SPEED_40GB:
2206 speed = 40000;
2207 break;
2208 case I40E_LINK_SPEED_10GB:
2209 speed = 10000;
2210 break;
2211 case I40E_LINK_SPEED_1GB:
2212 speed = 1000;
2213 break;
2214 default:
2215 break;
2216 }
2217
2218 if (max_tx_rate > speed) {
2219 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.",
2220 max_tx_rate, vf->vf_id);
2221 ret = -EINVAL;
2222 goto error;
2223 }
2224
2225 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
2226 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
2227 max_tx_rate = 50;
2228 }
2229
2230 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
2231 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
2232 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
2233 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
2234 if (ret) {
2235 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
2236 ret);
2237 ret = -EIO;
2238 goto error;
2239 }
2240 vf->tx_rate = max_tx_rate;
2241 error:
2242 return ret;
2243 }
2244
2245 /**
2246 * i40e_ndo_get_vf_config
2247 * @netdev: network interface device structure
2248 * @vf_id: VF identifier
2249 * @ivi: VF configuration structure
2250 *
2251 * return VF configuration
2252 **/
2253 int i40e_ndo_get_vf_config(struct net_device *netdev,
2254 int vf_id, struct ifla_vf_info *ivi)
2255 {
2256 struct i40e_netdev_priv *np = netdev_priv(netdev);
2257 struct i40e_vsi *vsi = np->vsi;
2258 struct i40e_pf *pf = vsi->back;
2259 struct i40e_vf *vf;
2260 int ret = 0;
2261
2262 /* validate the request */
2263 if (vf_id >= pf->num_alloc_vfs) {
2264 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2265 ret = -EINVAL;
2266 goto error_param;
2267 }
2268
2269 vf = &(pf->vf[vf_id]);
2270 /* first vsi is always the LAN vsi */
2271 vsi = pf->vsi[vf->lan_vsi_idx];
2272 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2273 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2274 ret = -EINVAL;
2275 goto error_param;
2276 }
2277
2278 ivi->vf = vf_id;
2279
2280 memcpy(&ivi->mac, vf->default_lan_addr.addr, ETH_ALEN);
2281
2282 ivi->max_tx_rate = vf->tx_rate;
2283 ivi->min_tx_rate = 0;
2284 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2285 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2286 I40E_VLAN_PRIORITY_SHIFT;
2287 if (vf->link_forced == false)
2288 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
2289 else if (vf->link_up == true)
2290 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
2291 else
2292 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
2293 ivi->spoofchk = vf->spoofchk;
2294 ret = 0;
2295
2296 error_param:
2297 return ret;
2298 }
2299
2300 /**
2301 * i40e_ndo_set_vf_link_state
2302 * @netdev: network interface device structure
2303 * @vf_id: VF identifier
2304 * @link: required link state
2305 *
2306 * Set the link state of a specified VF, regardless of physical link state
2307 **/
2308 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
2309 {
2310 struct i40e_netdev_priv *np = netdev_priv(netdev);
2311 struct i40e_pf *pf = np->vsi->back;
2312 struct i40e_virtchnl_pf_event pfe;
2313 struct i40e_hw *hw = &pf->hw;
2314 struct i40e_vf *vf;
2315 int abs_vf_id;
2316 int ret = 0;
2317
2318 /* validate the request */
2319 if (vf_id >= pf->num_alloc_vfs) {
2320 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2321 ret = -EINVAL;
2322 goto error_out;
2323 }
2324
2325 vf = &pf->vf[vf_id];
2326 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
2327
2328 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
2329 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
2330
2331 switch (link) {
2332 case IFLA_VF_LINK_STATE_AUTO:
2333 vf->link_forced = false;
2334 pfe.event_data.link_event.link_status =
2335 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
2336 pfe.event_data.link_event.link_speed =
2337 pf->hw.phy.link_info.link_speed;
2338 break;
2339 case IFLA_VF_LINK_STATE_ENABLE:
2340 vf->link_forced = true;
2341 vf->link_up = true;
2342 pfe.event_data.link_event.link_status = true;
2343 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
2344 break;
2345 case IFLA_VF_LINK_STATE_DISABLE:
2346 vf->link_forced = true;
2347 vf->link_up = false;
2348 pfe.event_data.link_event.link_status = false;
2349 pfe.event_data.link_event.link_speed = 0;
2350 break;
2351 default:
2352 ret = -EINVAL;
2353 goto error_out;
2354 }
2355 /* Notify the VF of its new link state */
2356 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
2357 0, (u8 *)&pfe, sizeof(pfe), NULL);
2358
2359 error_out:
2360 return ret;
2361 }
2362
2363 /**
2364 * i40e_ndo_set_vf_spoofchk
2365 * @netdev: network interface device structure
2366 * @vf_id: VF identifier
2367 * @enable: flag to enable or disable feature
2368 *
2369 * Enable or disable VF spoof checking
2370 **/
2371 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
2372 {
2373 struct i40e_netdev_priv *np = netdev_priv(netdev);
2374 struct i40e_vsi *vsi = np->vsi;
2375 struct i40e_pf *pf = vsi->back;
2376 struct i40e_vsi_context ctxt;
2377 struct i40e_hw *hw = &pf->hw;
2378 struct i40e_vf *vf;
2379 int ret = 0;
2380
2381 /* validate the request */
2382 if (vf_id >= pf->num_alloc_vfs) {
2383 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2384 ret = -EINVAL;
2385 goto out;
2386 }
2387
2388 vf = &(pf->vf[vf_id]);
2389
2390 if (enable == vf->spoofchk)
2391 goto out;
2392
2393 vf->spoofchk = enable;
2394 memset(&ctxt, 0, sizeof(ctxt));
2395 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
2396 ctxt.pf_num = pf->hw.pf_id;
2397 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
2398 if (enable)
2399 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
2400 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
2401 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
2402 if (ret) {
2403 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
2404 ret);
2405 ret = -EIO;
2406 }
2407 out:
2408 return ret;
2409 }
Ubuntu Artful kernel mirror