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 **/
i40e_vc_vf_broadcast(struct i40e_pf * pf,enum i40e_virtchnl_ops v_opcode,i40e_status v_retval,u8 * msg,u16 msglen)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 **/
i40e_vc_notify_vf_link_state(struct i40e_vf * vf)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 **/
i40e_vc_notify_link_state(struct i40e_pf * pf)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 **/
i40e_vc_notify_reset(struct i40e_pf * pf)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 **/
i40e_vc_notify_vf_reset(struct i40e_vf * vf)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 **/
i40e_vc_disable_vf(struct i40e_pf * pf,struct i40e_vf * vf)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 **/
i40e_vc_isvalid_vsi_id(struct i40e_vf * vf,u16 vsi_id)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 **/
i40e_vc_isvalid_queue_id(struct i40e_vf * vf,u16 vsi_id,u8 qid)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 **/
i40e_vc_isvalid_vector_id(struct i40e_vf * vf,u8 vector_id)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 **/
i40e_vc_get_pf_queue_id(struct i40e_vf * vf,u16 vsi_id,u8 vsi_queue_id)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 **/
i40e_config_irq_link_list(struct i40e_vf * vf,u16 vsi_id,struct i40e_virtchnl_vector_map * vecmap)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 **/
i40e_config_vsi_tx_queue(struct i40e_vf * vf,u16 vsi_id,u16 vsi_queue_id,struct i40e_virtchnl_txq_info * info)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 **/
i40e_config_vsi_rx_queue(struct i40e_vf * vf,u16 vsi_id,u16 vsi_queue_id,struct i40e_virtchnl_rxq_info * info)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 **/
i40e_alloc_vsi_res(struct i40e_vf * vf,enum i40e_vsi_type type)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 **/
i40e_enable_vf_mappings(struct i40e_vf * vf)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 **/
i40e_disable_vf_mappings(struct i40e_vf * vf)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 **/
i40e_free_vf_res(struct i40e_vf * vf)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 **/
i40e_alloc_vf_res(struct i40e_vf * vf)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 **/
i40e_quiesce_vf_pci(struct i40e_vf * vf)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 **/
i40e_reset_vf(struct i40e_vf * vf,bool flr)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 **/
i40e_free_vfs(struct i40e_pf * pf)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 **/
i40e_alloc_vfs(struct i40e_pf * pf,u16 num_alloc_vfs)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 **/
i40e_pci_sriov_enable(struct pci_dev * pdev,int num_vfs)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 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
984 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
985 i40e_free_vfs(pf);
986 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
987 goto out;
988
989 if (num_vfs > pf->num_req_vfs) {
990 err = -EPERM;
991 goto err_out;
992 }
993
994 err = i40e_alloc_vfs(pf, num_vfs);
995 if (err) {
996 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
997 goto err_out;
998 }
999
1000 out:
1001 return num_vfs;
1002
1003 err_out:
1004 return err;
1005 #endif
1006 return 0;
1007 }
1008
1009 /**
1010 * i40e_pci_sriov_configure
1011 * @pdev: pointer to a pci_dev structure
1012 * @num_vfs: number of VFs to allocate
1013 *
1014 * Enable or change the number of VFs. Called when the user updates the number
1015 * of VFs in sysfs.
1016 **/
i40e_pci_sriov_configure(struct pci_dev * pdev,int num_vfs)1017 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1018 {
1019 struct i40e_pf *pf = pci_get_drvdata(pdev);
1020
1021 if (num_vfs) {
1022 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1023 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1024 i40e_do_reset_safe(pf,
1025 BIT_ULL(__I40E_PF_RESET_REQUESTED));
1026 }
1027 return i40e_pci_sriov_enable(pdev, num_vfs);
1028 }
1029
1030 if (!pci_vfs_assigned(pf->pdev)) {
1031 i40e_free_vfs(pf);
1032 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1033 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
1034 } else {
1035 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1036 return -EINVAL;
1037 }
1038 return 0;
1039 }
1040
1041 /***********************virtual channel routines******************/
1042
1043 /**
1044 * i40e_vc_send_msg_to_vf
1045 * @vf: pointer to the VF info
1046 * @v_opcode: virtual channel opcode
1047 * @v_retval: virtual channel return value
1048 * @msg: pointer to the msg buffer
1049 * @msglen: msg length
1050 *
1051 * send msg to VF
1052 **/
i40e_vc_send_msg_to_vf(struct i40e_vf * vf,u32 v_opcode,u32 v_retval,u8 * msg,u16 msglen)1053 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1054 u32 v_retval, u8 *msg, u16 msglen)
1055 {
1056 struct i40e_pf *pf;
1057 struct i40e_hw *hw;
1058 int abs_vf_id;
1059 i40e_status aq_ret;
1060
1061 /* validate the request */
1062 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1063 return -EINVAL;
1064
1065 pf = vf->pf;
1066 hw = &pf->hw;
1067 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1068
1069 /* single place to detect unsuccessful return values */
1070 if (v_retval) {
1071 vf->num_invalid_msgs++;
1072 dev_err(&pf->pdev->dev, "Failed opcode %d Error: %d\n",
1073 v_opcode, v_retval);
1074 if (vf->num_invalid_msgs >
1075 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1076 dev_err(&pf->pdev->dev,
1077 "Number of invalid messages exceeded for VF %d\n",
1078 vf->vf_id);
1079 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1080 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1081 }
1082 } else {
1083 vf->num_valid_msgs++;
1084 }
1085
1086 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1087 msg, msglen, NULL);
1088 if (aq_ret) {
1089 dev_err(&pf->pdev->dev,
1090 "Unable to send the message to VF %d aq_err %d\n",
1091 vf->vf_id, pf->hw.aq.asq_last_status);
1092 return -EIO;
1093 }
1094
1095 return 0;
1096 }
1097
1098 /**
1099 * i40e_vc_send_resp_to_vf
1100 * @vf: pointer to the VF info
1101 * @opcode: operation code
1102 * @retval: return value
1103 *
1104 * send resp msg to VF
1105 **/
i40e_vc_send_resp_to_vf(struct i40e_vf * vf,enum i40e_virtchnl_ops opcode,i40e_status retval)1106 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1107 enum i40e_virtchnl_ops opcode,
1108 i40e_status retval)
1109 {
1110 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1111 }
1112
1113 /**
1114 * i40e_vc_get_version_msg
1115 * @vf: pointer to the VF info
1116 *
1117 * called from the VF to request the API version used by the PF
1118 **/
i40e_vc_get_version_msg(struct i40e_vf * vf)1119 static int i40e_vc_get_version_msg(struct i40e_vf *vf)
1120 {
1121 struct i40e_virtchnl_version_info info = {
1122 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1123 };
1124
1125 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1126 I40E_SUCCESS, (u8 *)&info,
1127 sizeof(struct
1128 i40e_virtchnl_version_info));
1129 }
1130
1131 /**
1132 * i40e_vc_get_vf_resources_msg
1133 * @vf: pointer to the VF info
1134 * @msg: pointer to the msg buffer
1135 * @msglen: msg length
1136 *
1137 * called from the VF to request its resources
1138 **/
i40e_vc_get_vf_resources_msg(struct i40e_vf * vf)1139 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf)
1140 {
1141 struct i40e_virtchnl_vf_resource *vfres = NULL;
1142 struct i40e_pf *pf = vf->pf;
1143 i40e_status aq_ret = 0;
1144 struct i40e_vsi *vsi;
1145 int i = 0, len = 0;
1146 int num_vsis = 1;
1147 int ret;
1148
1149 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1150 aq_ret = I40E_ERR_PARAM;
1151 goto err;
1152 }
1153
1154 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1155 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1156
1157 vfres = kzalloc(len, GFP_KERNEL);
1158 if (!vfres) {
1159 aq_ret = I40E_ERR_NO_MEMORY;
1160 len = 0;
1161 goto err;
1162 }
1163
1164 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1165 vsi = pf->vsi[vf->lan_vsi_idx];
1166 if (!vsi->info.pvid)
1167 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1168
1169 vfres->num_vsis = num_vsis;
1170 vfres->num_queue_pairs = vf->num_queue_pairs;
1171 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1172 if (vf->lan_vsi_idx) {
1173 vfres->vsi_res[i].vsi_id = vf->lan_vsi_id;
1174 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1175 vfres->vsi_res[i].num_queue_pairs =
1176 pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
1177 memcpy(vfres->vsi_res[i].default_mac_addr,
1178 vf->default_lan_addr.addr, ETH_ALEN);
1179 i++;
1180 }
1181 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1182
1183 err:
1184 /* send the response back to the VF */
1185 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1186 aq_ret, (u8 *)vfres, len);
1187
1188 kfree(vfres);
1189 return ret;
1190 }
1191
1192 /**
1193 * i40e_vc_reset_vf_msg
1194 * @vf: pointer to the VF info
1195 * @msg: pointer to the msg buffer
1196 * @msglen: msg length
1197 *
1198 * called from the VF to reset itself,
1199 * unlike other virtchnl messages, PF driver
1200 * doesn't send the response back to the VF
1201 **/
i40e_vc_reset_vf_msg(struct i40e_vf * vf)1202 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1203 {
1204 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1205 i40e_reset_vf(vf, false);
1206 }
1207
1208 /**
1209 * i40e_vc_config_promiscuous_mode_msg
1210 * @vf: pointer to the VF info
1211 * @msg: pointer to the msg buffer
1212 * @msglen: msg length
1213 *
1214 * called from the VF to configure the promiscuous mode of
1215 * VF vsis
1216 **/
i40e_vc_config_promiscuous_mode_msg(struct i40e_vf * vf,u8 * msg,u16 msglen)1217 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1218 u8 *msg, u16 msglen)
1219 {
1220 struct i40e_virtchnl_promisc_info *info =
1221 (struct i40e_virtchnl_promisc_info *)msg;
1222 struct i40e_pf *pf = vf->pf;
1223 struct i40e_hw *hw = &pf->hw;
1224 struct i40e_vsi *vsi;
1225 bool allmulti = false;
1226 i40e_status aq_ret;
1227
1228 vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1229 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1230 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1231 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1232 (vsi->type != I40E_VSI_FCOE)) {
1233 aq_ret = I40E_ERR_PARAM;
1234 goto error_param;
1235 }
1236 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1237 allmulti = true;
1238 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
1239 allmulti, NULL);
1240
1241 error_param:
1242 /* send the response to the VF */
1243 return i40e_vc_send_resp_to_vf(vf,
1244 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1245 aq_ret);
1246 }
1247
1248 /**
1249 * i40e_vc_config_queues_msg
1250 * @vf: pointer to the VF info
1251 * @msg: pointer to the msg buffer
1252 * @msglen: msg length
1253 *
1254 * called from the VF to configure the rx/tx
1255 * queues
1256 **/
i40e_vc_config_queues_msg(struct i40e_vf * vf,u8 * msg,u16 msglen)1257 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1258 {
1259 struct i40e_virtchnl_vsi_queue_config_info *qci =
1260 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1261 struct i40e_virtchnl_queue_pair_info *qpi;
1262 struct i40e_pf *pf = vf->pf;
1263 u16 vsi_id, vsi_queue_id;
1264 i40e_status aq_ret = 0;
1265 int i;
1266
1267 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1268 aq_ret = I40E_ERR_PARAM;
1269 goto error_param;
1270 }
1271
1272 vsi_id = qci->vsi_id;
1273 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1274 aq_ret = I40E_ERR_PARAM;
1275 goto error_param;
1276 }
1277 for (i = 0; i < qci->num_queue_pairs; i++) {
1278 qpi = &qci->qpair[i];
1279 vsi_queue_id = qpi->txq.queue_id;
1280 if ((qpi->txq.vsi_id != vsi_id) ||
1281 (qpi->rxq.vsi_id != vsi_id) ||
1282 (qpi->rxq.queue_id != vsi_queue_id) ||
1283 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1284 aq_ret = I40E_ERR_PARAM;
1285 goto error_param;
1286 }
1287
1288 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1289 &qpi->rxq) ||
1290 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1291 &qpi->txq)) {
1292 aq_ret = I40E_ERR_PARAM;
1293 goto error_param;
1294 }
1295 }
1296 /* set vsi num_queue_pairs in use to num configured by VF */
1297 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1298
1299 error_param:
1300 /* send the response to the VF */
1301 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1302 aq_ret);
1303 }
1304
1305 /**
1306 * i40e_vc_config_irq_map_msg
1307 * @vf: pointer to the VF info
1308 * @msg: pointer to the msg buffer
1309 * @msglen: msg length
1310 *
1311 * called from the VF to configure the irq to
1312 * queue map
1313 **/
i40e_vc_config_irq_map_msg(struct i40e_vf * vf,u8 * msg,u16 msglen)1314 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1315 {
1316 struct i40e_virtchnl_irq_map_info *irqmap_info =
1317 (struct i40e_virtchnl_irq_map_info *)msg;
1318 struct i40e_virtchnl_vector_map *map;
1319 u16 vsi_id, vsi_queue_id, vector_id;
1320 i40e_status aq_ret = 0;
1321 unsigned long tempmap;
1322 int i;
1323
1324 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1325 aq_ret = I40E_ERR_PARAM;
1326 goto error_param;
1327 }
1328
1329 for (i = 0; i < irqmap_info->num_vectors; i++) {
1330 map = &irqmap_info->vecmap[i];
1331
1332 vector_id = map->vector_id;
1333 vsi_id = map->vsi_id;
1334 /* validate msg params */
1335 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1336 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1337 aq_ret = I40E_ERR_PARAM;
1338 goto error_param;
1339 }
1340
1341 /* lookout for the invalid queue index */
1342 tempmap = map->rxq_map;
1343 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1344 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1345 vsi_queue_id)) {
1346 aq_ret = I40E_ERR_PARAM;
1347 goto error_param;
1348 }
1349 }
1350
1351 tempmap = map->txq_map;
1352 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1353 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1354 vsi_queue_id)) {
1355 aq_ret = I40E_ERR_PARAM;
1356 goto error_param;
1357 }
1358 }
1359
1360 i40e_config_irq_link_list(vf, vsi_id, map);
1361 }
1362 error_param:
1363 /* send the response to the VF */
1364 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1365 aq_ret);
1366 }
1367
1368 /**
1369 * i40e_vc_enable_queues_msg
1370 * @vf: pointer to the VF info
1371 * @msg: pointer to the msg buffer
1372 * @msglen: msg length
1373 *
1374 * called from the VF to enable all or specific queue(s)
1375 **/
i40e_vc_enable_queues_msg(struct i40e_vf * vf,u8 * msg,u16 msglen)1376 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1377 {
1378 struct i40e_virtchnl_queue_select *vqs =
1379 (struct i40e_virtchnl_queue_select *)msg;
1380 struct i40e_pf *pf = vf->pf;
1381 u16 vsi_id = vqs->vsi_id;
1382 i40e_status aq_ret = 0;
1383
1384 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1385 aq_ret = I40E_ERR_PARAM;
1386 goto error_param;
1387 }
1388
1389 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1390 aq_ret = I40E_ERR_PARAM;
1391 goto error_param;
1392 }
1393
1394 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1395 aq_ret = I40E_ERR_PARAM;
1396 goto error_param;
1397 }
1398
1399 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true))
1400 aq_ret = I40E_ERR_TIMEOUT;
1401 error_param:
1402 /* send the response to the VF */
1403 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1404 aq_ret);
1405 }
1406
1407 /**
1408 * i40e_vc_disable_queues_msg
1409 * @vf: pointer to the VF info
1410 * @msg: pointer to the msg buffer
1411 * @msglen: msg length
1412 *
1413 * called from the VF to disable all or specific
1414 * queue(s)
1415 **/
i40e_vc_disable_queues_msg(struct i40e_vf * vf,u8 * msg,u16 msglen)1416 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1417 {
1418 struct i40e_virtchnl_queue_select *vqs =
1419 (struct i40e_virtchnl_queue_select *)msg;
1420 struct i40e_pf *pf = vf->pf;
1421 i40e_status aq_ret = 0;
1422
1423 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1424 aq_ret = I40E_ERR_PARAM;
1425 goto error_param;
1426 }
1427
1428 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1429 aq_ret = I40E_ERR_PARAM;
1430 goto error_param;
1431 }
1432
1433 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1434 aq_ret = I40E_ERR_PARAM;
1435 goto error_param;
1436 }
1437
1438 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false))
1439 aq_ret = I40E_ERR_TIMEOUT;
1440
1441 error_param:
1442 /* send the response to the VF */
1443 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1444 aq_ret);
1445 }
1446
1447 /**
1448 * i40e_vc_get_stats_msg
1449 * @vf: pointer to the VF info
1450 * @msg: pointer to the msg buffer
1451 * @msglen: msg length
1452 *
1453 * called from the VF to get vsi stats
1454 **/
i40e_vc_get_stats_msg(struct i40e_vf * vf,u8 * msg,u16 msglen)1455 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1456 {
1457 struct i40e_virtchnl_queue_select *vqs =
1458 (struct i40e_virtchnl_queue_select *)msg;
1459 struct i40e_pf *pf = vf->pf;
1460 struct i40e_eth_stats stats;
1461 i40e_status aq_ret = 0;
1462 struct i40e_vsi *vsi;
1463
1464 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1465
1466 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1467 aq_ret = I40E_ERR_PARAM;
1468 goto error_param;
1469 }
1470
1471 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1472 aq_ret = I40E_ERR_PARAM;
1473 goto error_param;
1474 }
1475
1476 vsi = pf->vsi[vf->lan_vsi_idx];
1477 if (!vsi) {
1478 aq_ret = I40E_ERR_PARAM;
1479 goto error_param;
1480 }
1481 i40e_update_eth_stats(vsi);
1482 stats = vsi->eth_stats;
1483
1484 error_param:
1485 /* send the response back to the VF */
1486 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1487 (u8 *)&stats, sizeof(stats));
1488 }
1489
1490 /**
1491 * i40e_check_vf_permission
1492 * @vf: pointer to the VF info
1493 * @macaddr: pointer to the MAC Address being checked
1494 *
1495 * Check if the VF has permission to add or delete unicast MAC address
1496 * filters and return error code -EPERM if not. Then check if the
1497 * address filter requested is broadcast or zero and if so return
1498 * an invalid MAC address error code.
1499 **/
i40e_check_vf_permission(struct i40e_vf * vf,u8 * macaddr)1500 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1501 {
1502 struct i40e_pf *pf = vf->pf;
1503 int ret = 0;
1504
1505 if (is_broadcast_ether_addr(macaddr) ||
1506 is_zero_ether_addr(macaddr)) {
1507 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1508 ret = I40E_ERR_INVALID_MAC_ADDR;
1509 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1510 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1511 /* If the host VMM administrator has set the VF MAC address
1512 * administratively via the ndo_set_vf_mac command then deny
1513 * permission to the VF to add or delete unicast MAC addresses.
1514 * The VF may request to set the MAC address filter already
1515 * assigned to it so do not return an error in that case.
1516 */
1517 dev_err(&pf->pdev->dev,
1518 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
1519 ret = -EPERM;
1520 }
1521 return ret;
1522 }
1523
1524 /**
1525 * i40e_vc_add_mac_addr_msg
1526 * @vf: pointer to the VF info
1527 * @msg: pointer to the msg buffer
1528 * @msglen: msg length
1529 *
1530 * add guest mac address filter
1531 **/
i40e_vc_add_mac_addr_msg(struct i40e_vf * vf,u8 * msg,u16 msglen)1532 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1533 {
1534 struct i40e_virtchnl_ether_addr_list *al =
1535 (struct i40e_virtchnl_ether_addr_list *)msg;
1536 struct i40e_pf *pf = vf->pf;
1537 struct i40e_vsi *vsi = NULL;
1538 u16 vsi_id = al->vsi_id;
1539 i40e_status ret = 0;
1540 int i;
1541
1542 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1543 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1544 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1545 ret = I40E_ERR_PARAM;
1546 goto error_param;
1547 }
1548
1549 for (i = 0; i < al->num_elements; i++) {
1550 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1551 if (ret)
1552 goto error_param;
1553 }
1554 vsi = pf->vsi[vf->lan_vsi_idx];
1555
1556 /* add new addresses to the list */
1557 for (i = 0; i < al->num_elements; i++) {
1558 struct i40e_mac_filter *f;
1559
1560 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1561 if (!f) {
1562 if (i40e_is_vsi_in_vlan(vsi))
1563 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1564 true, false);
1565 else
1566 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1567 true, false);
1568 }
1569
1570 if (!f) {
1571 dev_err(&pf->pdev->dev,
1572 "Unable to add VF MAC filter\n");
1573 ret = I40E_ERR_PARAM;
1574 goto error_param;
1575 }
1576 }
1577
1578 /* program the updated filter list */
1579 if (i40e_sync_vsi_filters(vsi))
1580 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1581
1582 error_param:
1583 /* send the response to the VF */
1584 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1585 ret);
1586 }
1587
1588 /**
1589 * i40e_vc_del_mac_addr_msg
1590 * @vf: pointer to the VF info
1591 * @msg: pointer to the msg buffer
1592 * @msglen: msg length
1593 *
1594 * remove guest mac address filter
1595 **/
i40e_vc_del_mac_addr_msg(struct i40e_vf * vf,u8 * msg,u16 msglen)1596 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1597 {
1598 struct i40e_virtchnl_ether_addr_list *al =
1599 (struct i40e_virtchnl_ether_addr_list *)msg;
1600 struct i40e_pf *pf = vf->pf;
1601 struct i40e_vsi *vsi = NULL;
1602 u16 vsi_id = al->vsi_id;
1603 i40e_status ret = 0;
1604 int i;
1605
1606 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1607 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1608 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1609 ret = I40E_ERR_PARAM;
1610 goto error_param;
1611 }
1612
1613 for (i = 0; i < al->num_elements; i++) {
1614 if (is_broadcast_ether_addr(al->list[i].addr) ||
1615 is_zero_ether_addr(al->list[i].addr)) {
1616 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
1617 al->list[i].addr);
1618 ret = I40E_ERR_INVALID_MAC_ADDR;
1619 goto error_param;
1620 }
1621 }
1622 vsi = pf->vsi[vf->lan_vsi_idx];
1623
1624 /* delete addresses from the list */
1625 for (i = 0; i < al->num_elements; i++)
1626 i40e_del_filter(vsi, al->list[i].addr,
1627 I40E_VLAN_ANY, true, false);
1628
1629 /* program the updated filter list */
1630 if (i40e_sync_vsi_filters(vsi))
1631 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1632
1633 error_param:
1634 /* send the response to the VF */
1635 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
1636 ret);
1637 }
1638
1639 /**
1640 * i40e_vc_add_vlan_msg
1641 * @vf: pointer to the VF info
1642 * @msg: pointer to the msg buffer
1643 * @msglen: msg length
1644 *
1645 * program guest vlan id
1646 **/
i40e_vc_add_vlan_msg(struct i40e_vf * vf,u8 * msg,u16 msglen)1647 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1648 {
1649 struct i40e_virtchnl_vlan_filter_list *vfl =
1650 (struct i40e_virtchnl_vlan_filter_list *)msg;
1651 struct i40e_pf *pf = vf->pf;
1652 struct i40e_vsi *vsi = NULL;
1653 u16 vsi_id = vfl->vsi_id;
1654 i40e_status aq_ret = 0;
1655 int i;
1656
1657 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1658 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1659 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1660 aq_ret = I40E_ERR_PARAM;
1661 goto error_param;
1662 }
1663
1664 for (i = 0; i < vfl->num_elements; i++) {
1665 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1666 aq_ret = I40E_ERR_PARAM;
1667 dev_err(&pf->pdev->dev,
1668 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1669 goto error_param;
1670 }
1671 }
1672 vsi = pf->vsi[vf->lan_vsi_idx];
1673 if (vsi->info.pvid) {
1674 aq_ret = I40E_ERR_PARAM;
1675 goto error_param;
1676 }
1677
1678 i40e_vlan_stripping_enable(vsi);
1679 for (i = 0; i < vfl->num_elements; i++) {
1680 /* add new VLAN filter */
1681 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1682 if (ret)
1683 dev_err(&pf->pdev->dev,
1684 "Unable to add VF vlan filter %d, error %d\n",
1685 vfl->vlan_id[i], ret);
1686 }
1687
1688 error_param:
1689 /* send the response to the VF */
1690 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1691 }
1692
1693 /**
1694 * i40e_vc_remove_vlan_msg
1695 * @vf: pointer to the VF info
1696 * @msg: pointer to the msg buffer
1697 * @msglen: msg length
1698 *
1699 * remove programmed guest vlan id
1700 **/
i40e_vc_remove_vlan_msg(struct i40e_vf * vf,u8 * msg,u16 msglen)1701 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1702 {
1703 struct i40e_virtchnl_vlan_filter_list *vfl =
1704 (struct i40e_virtchnl_vlan_filter_list *)msg;
1705 struct i40e_pf *pf = vf->pf;
1706 struct i40e_vsi *vsi = NULL;
1707 u16 vsi_id = vfl->vsi_id;
1708 i40e_status aq_ret = 0;
1709 int i;
1710
1711 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1712 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1713 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1714 aq_ret = I40E_ERR_PARAM;
1715 goto error_param;
1716 }
1717
1718 for (i = 0; i < vfl->num_elements; i++) {
1719 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1720 aq_ret = I40E_ERR_PARAM;
1721 goto error_param;
1722 }
1723 }
1724
1725 vsi = pf->vsi[vf->lan_vsi_idx];
1726 if (vsi->info.pvid) {
1727 aq_ret = I40E_ERR_PARAM;
1728 goto error_param;
1729 }
1730
1731 for (i = 0; i < vfl->num_elements; i++) {
1732 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1733 if (ret)
1734 dev_err(&pf->pdev->dev,
1735 "Unable to delete VF vlan filter %d, error %d\n",
1736 vfl->vlan_id[i], ret);
1737 }
1738
1739 error_param:
1740 /* send the response to the VF */
1741 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1742 }
1743
1744 /**
1745 * i40e_vc_validate_vf_msg
1746 * @vf: pointer to the VF info
1747 * @msg: pointer to the msg buffer
1748 * @msglen: msg length
1749 * @msghndl: msg handle
1750 *
1751 * validate msg
1752 **/
i40e_vc_validate_vf_msg(struct i40e_vf * vf,u32 v_opcode,u32 v_retval,u8 * msg,u16 msglen)1753 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
1754 u32 v_retval, u8 *msg, u16 msglen)
1755 {
1756 bool err_msg_format = false;
1757 int valid_len;
1758
1759 /* Check if VF is disabled. */
1760 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
1761 return I40E_ERR_PARAM;
1762
1763 /* Validate message length. */
1764 switch (v_opcode) {
1765 case I40E_VIRTCHNL_OP_VERSION:
1766 valid_len = sizeof(struct i40e_virtchnl_version_info);
1767 break;
1768 case I40E_VIRTCHNL_OP_RESET_VF:
1769 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1770 valid_len = 0;
1771 break;
1772 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
1773 valid_len = sizeof(struct i40e_virtchnl_txq_info);
1774 break;
1775 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
1776 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
1777 break;
1778 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1779 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
1780 if (msglen >= valid_len) {
1781 struct i40e_virtchnl_vsi_queue_config_info *vqc =
1782 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1783 valid_len += (vqc->num_queue_pairs *
1784 sizeof(struct
1785 i40e_virtchnl_queue_pair_info));
1786 if (vqc->num_queue_pairs == 0)
1787 err_msg_format = true;
1788 }
1789 break;
1790 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1791 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
1792 if (msglen >= valid_len) {
1793 struct i40e_virtchnl_irq_map_info *vimi =
1794 (struct i40e_virtchnl_irq_map_info *)msg;
1795 valid_len += (vimi->num_vectors *
1796 sizeof(struct i40e_virtchnl_vector_map));
1797 if (vimi->num_vectors == 0)
1798 err_msg_format = true;
1799 }
1800 break;
1801 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1802 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1803 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1804 break;
1805 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1806 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1807 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
1808 if (msglen >= valid_len) {
1809 struct i40e_virtchnl_ether_addr_list *veal =
1810 (struct i40e_virtchnl_ether_addr_list *)msg;
1811 valid_len += veal->num_elements *
1812 sizeof(struct i40e_virtchnl_ether_addr);
1813 if (veal->num_elements == 0)
1814 err_msg_format = true;
1815 }
1816 break;
1817 case I40E_VIRTCHNL_OP_ADD_VLAN:
1818 case I40E_VIRTCHNL_OP_DEL_VLAN:
1819 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
1820 if (msglen >= valid_len) {
1821 struct i40e_virtchnl_vlan_filter_list *vfl =
1822 (struct i40e_virtchnl_vlan_filter_list *)msg;
1823 valid_len += vfl->num_elements * sizeof(u16);
1824 if (vfl->num_elements == 0)
1825 err_msg_format = true;
1826 }
1827 break;
1828 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1829 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
1830 break;
1831 case I40E_VIRTCHNL_OP_GET_STATS:
1832 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1833 break;
1834 /* These are always errors coming from the VF. */
1835 case I40E_VIRTCHNL_OP_EVENT:
1836 case I40E_VIRTCHNL_OP_UNKNOWN:
1837 default:
1838 return -EPERM;
1839 break;
1840 }
1841 /* few more checks */
1842 if ((valid_len != msglen) || (err_msg_format)) {
1843 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
1844 return -EINVAL;
1845 } else {
1846 return 0;
1847 }
1848 }
1849
1850 /**
1851 * i40e_vc_process_vf_msg
1852 * @pf: pointer to the PF structure
1853 * @vf_id: source VF id
1854 * @msg: pointer to the msg buffer
1855 * @msglen: msg length
1856 * @msghndl: msg handle
1857 *
1858 * called from the common aeq/arq handler to
1859 * process request from VF
1860 **/
i40e_vc_process_vf_msg(struct i40e_pf * pf,u16 vf_id,u32 v_opcode,u32 v_retval,u8 * msg,u16 msglen)1861 int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
1862 u32 v_retval, u8 *msg, u16 msglen)
1863 {
1864 struct i40e_hw *hw = &pf->hw;
1865 unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
1866 struct i40e_vf *vf;
1867 int ret;
1868
1869 pf->vf_aq_requests++;
1870 if (local_vf_id >= pf->num_alloc_vfs)
1871 return -EINVAL;
1872 vf = &(pf->vf[local_vf_id]);
1873 /* perform basic checks on the msg */
1874 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
1875
1876 if (ret) {
1877 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
1878 local_vf_id, v_opcode, msglen);
1879 return ret;
1880 }
1881
1882 switch (v_opcode) {
1883 case I40E_VIRTCHNL_OP_VERSION:
1884 ret = i40e_vc_get_version_msg(vf);
1885 break;
1886 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1887 ret = i40e_vc_get_vf_resources_msg(vf);
1888 break;
1889 case I40E_VIRTCHNL_OP_RESET_VF:
1890 i40e_vc_reset_vf_msg(vf);
1891 ret = 0;
1892 break;
1893 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1894 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
1895 break;
1896 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1897 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
1898 break;
1899 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1900 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
1901 break;
1902 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1903 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
1904 i40e_vc_notify_vf_link_state(vf);
1905 break;
1906 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1907 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
1908 break;
1909 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1910 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
1911 break;
1912 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1913 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
1914 break;
1915 case I40E_VIRTCHNL_OP_ADD_VLAN:
1916 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
1917 break;
1918 case I40E_VIRTCHNL_OP_DEL_VLAN:
1919 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
1920 break;
1921 case I40E_VIRTCHNL_OP_GET_STATS:
1922 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
1923 break;
1924 case I40E_VIRTCHNL_OP_UNKNOWN:
1925 default:
1926 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
1927 v_opcode, local_vf_id);
1928 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
1929 I40E_ERR_NOT_IMPLEMENTED);
1930 break;
1931 }
1932
1933 return ret;
1934 }
1935
1936 /**
1937 * i40e_vc_process_vflr_event
1938 * @pf: pointer to the PF structure
1939 *
1940 * called from the vlfr irq handler to
1941 * free up VF resources and state variables
1942 **/
i40e_vc_process_vflr_event(struct i40e_pf * pf)1943 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
1944 {
1945 u32 reg, reg_idx, bit_idx, vf_id;
1946 struct i40e_hw *hw = &pf->hw;
1947 struct i40e_vf *vf;
1948
1949 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
1950 return 0;
1951
1952 /* re-enable vflr interrupt cause */
1953 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
1954 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
1955 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
1956 i40e_flush(hw);
1957
1958 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
1959 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
1960 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1961 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1962 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
1963 vf = &pf->vf[vf_id];
1964 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
1965 if (reg & (1 << bit_idx)) {
1966 /* clear the bit in GLGEN_VFLRSTAT */
1967 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
1968
1969 if (!test_bit(__I40E_DOWN, &pf->state))
1970 i40e_reset_vf(vf, true);
1971 }
1972 }
1973
1974 return 0;
1975 }
1976
1977 /**
1978 * i40e_ndo_set_vf_mac
1979 * @netdev: network interface device structure
1980 * @vf_id: VF identifier
1981 * @mac: mac address
1982 *
1983 * program VF mac address
1984 **/
i40e_ndo_set_vf_mac(struct net_device * netdev,int vf_id,u8 * mac)1985 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
1986 {
1987 struct i40e_netdev_priv *np = netdev_priv(netdev);
1988 struct i40e_vsi *vsi = np->vsi;
1989 struct i40e_pf *pf = vsi->back;
1990 struct i40e_mac_filter *f;
1991 struct i40e_vf *vf;
1992 int ret = 0;
1993
1994 /* validate the request */
1995 if (vf_id >= pf->num_alloc_vfs) {
1996 dev_err(&pf->pdev->dev,
1997 "Invalid VF Identifier %d\n", vf_id);
1998 ret = -EINVAL;
1999 goto error_param;
2000 }
2001
2002 vf = &(pf->vf[vf_id]);
2003 vsi = pf->vsi[vf->lan_vsi_idx];
2004 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2005 dev_err(&pf->pdev->dev,
2006 "Uninitialized VF %d\n", vf_id);
2007 ret = -EINVAL;
2008 goto error_param;
2009 }
2010
2011 if (!is_valid_ether_addr(mac)) {
2012 dev_err(&pf->pdev->dev,
2013 "Invalid VF ethernet address\n");
2014 ret = -EINVAL;
2015 goto error_param;
2016 }
2017
2018 /* delete the temporary mac address */
2019 i40e_del_filter(vsi, vf->default_lan_addr.addr, vf->port_vlan_id,
2020 true, false);
2021
2022 /* Delete all the filters for this VSI - we're going to kill it
2023 * anyway.
2024 */
2025 list_for_each_entry(f, &vsi->mac_filter_list, list)
2026 i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);
2027
2028 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2029 /* program mac filter */
2030 if (i40e_sync_vsi_filters(vsi)) {
2031 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2032 ret = -EIO;
2033 goto error_param;
2034 }
2035 ether_addr_copy(vf->default_lan_addr.addr, mac);
2036 vf->pf_set_mac = true;
2037 /* Force the VF driver stop so it has to reload with new MAC address */
2038 i40e_vc_disable_vf(pf, vf);
2039 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2040
2041 error_param:
2042 return ret;
2043 }
2044
2045 /**
2046 * i40e_ndo_set_vf_port_vlan
2047 * @netdev: network interface device structure
2048 * @vf_id: VF identifier
2049 * @vlan_id: mac address
2050 * @qos: priority setting
2051 *
2052 * program VF vlan id and/or qos
2053 **/
i40e_ndo_set_vf_port_vlan(struct net_device * netdev,int vf_id,u16 vlan_id,u8 qos)2054 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2055 int vf_id, u16 vlan_id, u8 qos)
2056 {
2057 struct i40e_netdev_priv *np = netdev_priv(netdev);
2058 struct i40e_pf *pf = np->vsi->back;
2059 struct i40e_vsi *vsi;
2060 struct i40e_vf *vf;
2061 int ret = 0;
2062
2063 /* validate the request */
2064 if (vf_id >= pf->num_alloc_vfs) {
2065 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2066 ret = -EINVAL;
2067 goto error_pvid;
2068 }
2069
2070 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2071 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2072 ret = -EINVAL;
2073 goto error_pvid;
2074 }
2075
2076 vf = &(pf->vf[vf_id]);
2077 vsi = pf->vsi[vf->lan_vsi_idx];
2078 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2079 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2080 ret = -EINVAL;
2081 goto error_pvid;
2082 }
2083
2084 if (vsi->info.pvid == 0 && i40e_is_vsi_in_vlan(vsi)) {
2085 dev_err(&pf->pdev->dev,
2086 "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",
2087 vf_id);
2088 /* Administrator Error - knock the VF offline until he does
2089 * the right thing by reconfiguring his network correctly
2090 * and then reloading the VF driver.
2091 */
2092 i40e_vc_disable_vf(pf, vf);
2093 }
2094
2095 /* Check for condition where there was already a port VLAN ID
2096 * filter set and now it is being deleted by setting it to zero.
2097 * Additionally check for the condition where there was a port
2098 * VLAN but now there is a new and different port VLAN being set.
2099 * Before deleting all the old VLAN filters we must add new ones
2100 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2101 * MAC addresses deleted.
2102 */
2103 if ((!(vlan_id || qos) ||
2104 (vlan_id | qos) != le16_to_cpu(vsi->info.pvid)) &&
2105 vsi->info.pvid)
2106 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
2107
2108 if (vsi->info.pvid) {
2109 /* kill old VLAN */
2110 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2111 VLAN_VID_MASK));
2112 if (ret) {
2113 dev_info(&vsi->back->pdev->dev,
2114 "remove VLAN failed, ret=%d, aq_err=%d\n",
2115 ret, pf->hw.aq.asq_last_status);
2116 }
2117 }
2118 if (vlan_id || qos)
2119 ret = i40e_vsi_add_pvid(vsi,
2120 vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT));
2121 else
2122 i40e_vsi_remove_pvid(vsi);
2123
2124 if (vlan_id) {
2125 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2126 vlan_id, qos, vf_id);
2127
2128 /* add new VLAN filter */
2129 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2130 if (ret) {
2131 dev_info(&vsi->back->pdev->dev,
2132 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2133 vsi->back->hw.aq.asq_last_status);
2134 goto error_pvid;
2135 }
2136 /* Kill non-vlan MAC filters - ignore error return since
2137 * there might not be any non-vlan MAC filters.
2138 */
2139 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
2140 }
2141
2142 if (ret) {
2143 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2144 goto error_pvid;
2145 }
2146 /* The Port VLAN needs to be saved across resets the same as the
2147 * default LAN MAC address.
2148 */
2149 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2150 ret = 0;
2151
2152 error_pvid:
2153 return ret;
2154 }
2155
2156 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
2157 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
2158 /**
2159 * i40e_ndo_set_vf_bw
2160 * @netdev: network interface device structure
2161 * @vf_id: VF identifier
2162 * @tx_rate: Tx rate
2163 *
2164 * configure VF Tx rate
2165 **/
i40e_ndo_set_vf_bw(struct net_device * netdev,int vf_id,int min_tx_rate,int max_tx_rate)2166 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
2167 int max_tx_rate)
2168 {
2169 struct i40e_netdev_priv *np = netdev_priv(netdev);
2170 struct i40e_pf *pf = np->vsi->back;
2171 struct i40e_vsi *vsi;
2172 struct i40e_vf *vf;
2173 int speed = 0;
2174 int ret = 0;
2175
2176 /* validate the request */
2177 if (vf_id >= pf->num_alloc_vfs) {
2178 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
2179 ret = -EINVAL;
2180 goto error;
2181 }
2182
2183 if (min_tx_rate) {
2184 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
2185 min_tx_rate, vf_id);
2186 return -EINVAL;
2187 }
2188
2189 vf = &(pf->vf[vf_id]);
2190 vsi = pf->vsi[vf->lan_vsi_idx];
2191 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2192 dev_err(&pf->pdev->dev, "Uninitialized VF %d.\n", vf_id);
2193 ret = -EINVAL;
2194 goto error;
2195 }
2196
2197 switch (pf->hw.phy.link_info.link_speed) {
2198 case I40E_LINK_SPEED_40GB:
2199 speed = 40000;
2200 break;
2201 case I40E_LINK_SPEED_10GB:
2202 speed = 10000;
2203 break;
2204 case I40E_LINK_SPEED_1GB:
2205 speed = 1000;
2206 break;
2207 default:
2208 break;
2209 }
2210
2211 if (max_tx_rate > speed) {
2212 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.",
2213 max_tx_rate, vf->vf_id);
2214 ret = -EINVAL;
2215 goto error;
2216 }
2217
2218 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
2219 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
2220 max_tx_rate = 50;
2221 }
2222
2223 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
2224 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
2225 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
2226 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
2227 if (ret) {
2228 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
2229 ret);
2230 ret = -EIO;
2231 goto error;
2232 }
2233 vf->tx_rate = max_tx_rate;
2234 error:
2235 return ret;
2236 }
2237
2238 /**
2239 * i40e_ndo_get_vf_config
2240 * @netdev: network interface device structure
2241 * @vf_id: VF identifier
2242 * @ivi: VF configuration structure
2243 *
2244 * return VF configuration
2245 **/
i40e_ndo_get_vf_config(struct net_device * netdev,int vf_id,struct ifla_vf_info * ivi)2246 int i40e_ndo_get_vf_config(struct net_device *netdev,
2247 int vf_id, struct ifla_vf_info *ivi)
2248 {
2249 struct i40e_netdev_priv *np = netdev_priv(netdev);
2250 struct i40e_vsi *vsi = np->vsi;
2251 struct i40e_pf *pf = vsi->back;
2252 struct i40e_vf *vf;
2253 int ret = 0;
2254
2255 /* validate the request */
2256 if (vf_id >= pf->num_alloc_vfs) {
2257 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2258 ret = -EINVAL;
2259 goto error_param;
2260 }
2261
2262 vf = &(pf->vf[vf_id]);
2263 /* first vsi is always the LAN vsi */
2264 vsi = pf->vsi[vf->lan_vsi_idx];
2265 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2266 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2267 ret = -EINVAL;
2268 goto error_param;
2269 }
2270
2271 ivi->vf = vf_id;
2272
2273 memcpy(&ivi->mac, vf->default_lan_addr.addr, ETH_ALEN);
2274
2275 ivi->max_tx_rate = vf->tx_rate;
2276 ivi->min_tx_rate = 0;
2277 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2278 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2279 I40E_VLAN_PRIORITY_SHIFT;
2280 if (vf->link_forced == false)
2281 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
2282 else if (vf->link_up == true)
2283 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
2284 else
2285 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
2286 ivi->spoofchk = vf->spoofchk;
2287 ret = 0;
2288
2289 error_param:
2290 return ret;
2291 }
2292
2293 /**
2294 * i40e_ndo_set_vf_link_state
2295 * @netdev: network interface device structure
2296 * @vf_id: VF identifier
2297 * @link: required link state
2298 *
2299 * Set the link state of a specified VF, regardless of physical link state
2300 **/
i40e_ndo_set_vf_link_state(struct net_device * netdev,int vf_id,int link)2301 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
2302 {
2303 struct i40e_netdev_priv *np = netdev_priv(netdev);
2304 struct i40e_pf *pf = np->vsi->back;
2305 struct i40e_virtchnl_pf_event pfe;
2306 struct i40e_hw *hw = &pf->hw;
2307 struct i40e_vf *vf;
2308 int abs_vf_id;
2309 int ret = 0;
2310
2311 /* validate the request */
2312 if (vf_id >= pf->num_alloc_vfs) {
2313 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2314 ret = -EINVAL;
2315 goto error_out;
2316 }
2317
2318 vf = &pf->vf[vf_id];
2319 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
2320
2321 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
2322 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
2323
2324 switch (link) {
2325 case IFLA_VF_LINK_STATE_AUTO:
2326 vf->link_forced = false;
2327 pfe.event_data.link_event.link_status =
2328 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
2329 pfe.event_data.link_event.link_speed =
2330 pf->hw.phy.link_info.link_speed;
2331 break;
2332 case IFLA_VF_LINK_STATE_ENABLE:
2333 vf->link_forced = true;
2334 vf->link_up = true;
2335 pfe.event_data.link_event.link_status = true;
2336 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
2337 break;
2338 case IFLA_VF_LINK_STATE_DISABLE:
2339 vf->link_forced = true;
2340 vf->link_up = false;
2341 pfe.event_data.link_event.link_status = false;
2342 pfe.event_data.link_event.link_speed = 0;
2343 break;
2344 default:
2345 ret = -EINVAL;
2346 goto error_out;
2347 }
2348 /* Notify the VF of its new link state */
2349 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
2350 0, (u8 *)&pfe, sizeof(pfe), NULL);
2351
2352 error_out:
2353 return ret;
2354 }
2355
2356 /**
2357 * i40e_ndo_set_vf_spoofchk
2358 * @netdev: network interface device structure
2359 * @vf_id: VF identifier
2360 * @enable: flag to enable or disable feature
2361 *
2362 * Enable or disable VF spoof checking
2363 **/
i40e_ndo_set_vf_spoofchk(struct net_device * netdev,int vf_id,bool enable)2364 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
2365 {
2366 struct i40e_netdev_priv *np = netdev_priv(netdev);
2367 struct i40e_vsi *vsi = np->vsi;
2368 struct i40e_pf *pf = vsi->back;
2369 struct i40e_vsi_context ctxt;
2370 struct i40e_hw *hw = &pf->hw;
2371 struct i40e_vf *vf;
2372 int ret = 0;
2373
2374 /* validate the request */
2375 if (vf_id >= pf->num_alloc_vfs) {
2376 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2377 ret = -EINVAL;
2378 goto out;
2379 }
2380
2381 vf = &(pf->vf[vf_id]);
2382
2383 if (enable == vf->spoofchk)
2384 goto out;
2385
2386 vf->spoofchk = enable;
2387 memset(&ctxt, 0, sizeof(ctxt));
2388 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
2389 ctxt.pf_num = pf->hw.pf_id;
2390 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
2391 if (enable)
2392 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
2393 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
2394 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
2395 if (ret) {
2396 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
2397 ret);
2398 ret = -EIO;
2399 }
2400 out:
2401 return ret;
2402 }
2403