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[deliverable/linux.git] / drivers / net / ethernet / intel / i40e / i40e_virtchnl_pf.c
1 /*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
4 * Copyright(c) 2013 - 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 i40e_vc_notify_vf_reset(vf);
164 i40e_reset_vf(vf, false);
165 }
166
167 /**
168 * i40e_vc_isvalid_vsi_id
169 * @vf: pointer to the VF info
170 * @vsi_id: VF relative VSI id
171 *
172 * check for the valid VSI id
173 **/
174 static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
175 {
176 struct i40e_pf *pf = vf->pf;
177 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
178
179 return (vsi && (vsi->vf_id == vf->vf_id));
180 }
181
182 /**
183 * i40e_vc_isvalid_queue_id
184 * @vf: pointer to the VF info
185 * @vsi_id: vsi id
186 * @qid: vsi relative queue id
187 *
188 * check for the valid queue id
189 **/
190 static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
191 u8 qid)
192 {
193 struct i40e_pf *pf = vf->pf;
194 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
195
196 return (vsi && (qid < vsi->alloc_queue_pairs));
197 }
198
199 /**
200 * i40e_vc_isvalid_vector_id
201 * @vf: pointer to the VF info
202 * @vector_id: VF relative vector id
203 *
204 * check for the valid vector id
205 **/
206 static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
207 {
208 struct i40e_pf *pf = vf->pf;
209
210 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
211 }
212
213 /***********************vf resource mgmt routines*****************/
214
215 /**
216 * i40e_vc_get_pf_queue_id
217 * @vf: pointer to the VF info
218 * @vsi_id: id of VSI as provided by the FW
219 * @vsi_queue_id: vsi relative queue id
220 *
221 * return PF relative queue id
222 **/
223 static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
224 u8 vsi_queue_id)
225 {
226 struct i40e_pf *pf = vf->pf;
227 struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
228 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
229
230 if (!vsi)
231 return pf_queue_id;
232
233 if (le16_to_cpu(vsi->info.mapping_flags) &
234 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
235 pf_queue_id =
236 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
237 else
238 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
239 vsi_queue_id;
240
241 return pf_queue_id;
242 }
243
244 /**
245 * i40e_config_irq_link_list
246 * @vf: pointer to the VF info
247 * @vsi_id: id of VSI as given by the FW
248 * @vecmap: irq map info
249 *
250 * configure irq link list from the map
251 **/
252 static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
253 struct i40e_virtchnl_vector_map *vecmap)
254 {
255 unsigned long linklistmap = 0, tempmap;
256 struct i40e_pf *pf = vf->pf;
257 struct i40e_hw *hw = &pf->hw;
258 u16 vsi_queue_id, pf_queue_id;
259 enum i40e_queue_type qtype;
260 u16 next_q, vector_id;
261 u32 reg, reg_idx;
262 u16 itr_idx = 0;
263
264 vector_id = vecmap->vector_id;
265 /* setup the head */
266 if (0 == vector_id)
267 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
268 else
269 reg_idx = I40E_VPINT_LNKLSTN(
270 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
271 (vector_id - 1));
272
273 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
274 /* Special case - No queues mapped on this vector */
275 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
276 goto irq_list_done;
277 }
278 tempmap = vecmap->rxq_map;
279 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
280 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
281 vsi_queue_id));
282 }
283
284 tempmap = vecmap->txq_map;
285 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
286 linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
287 vsi_queue_id + 1));
288 }
289
290 next_q = find_first_bit(&linklistmap,
291 (I40E_MAX_VSI_QP *
292 I40E_VIRTCHNL_SUPPORTED_QTYPES));
293 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
294 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
295 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
296 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
297
298 wr32(hw, reg_idx, reg);
299
300 while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
301 switch (qtype) {
302 case I40E_QUEUE_TYPE_RX:
303 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
304 itr_idx = vecmap->rxitr_idx;
305 break;
306 case I40E_QUEUE_TYPE_TX:
307 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
308 itr_idx = vecmap->txitr_idx;
309 break;
310 default:
311 break;
312 }
313
314 next_q = find_next_bit(&linklistmap,
315 (I40E_MAX_VSI_QP *
316 I40E_VIRTCHNL_SUPPORTED_QTYPES),
317 next_q + 1);
318 if (next_q <
319 (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
320 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
321 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
322 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id,
323 vsi_queue_id);
324 } else {
325 pf_queue_id = I40E_QUEUE_END_OF_LIST;
326 qtype = 0;
327 }
328
329 /* format for the RQCTL & TQCTL regs is same */
330 reg = (vector_id) |
331 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
332 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
333 BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
334 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
335 wr32(hw, reg_idx, reg);
336 }
337
338 /* if the vf is running in polling mode and using interrupt zero,
339 * need to disable auto-mask on enabling zero interrupt for VFs.
340 */
341 if ((vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
342 (vector_id == 0)) {
343 reg = rd32(hw, I40E_GLINT_CTL);
344 if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {
345 reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;
346 wr32(hw, I40E_GLINT_CTL, reg);
347 }
348 }
349
350 irq_list_done:
351 i40e_flush(hw);
352 }
353
354 /**
355 * i40e_config_vsi_tx_queue
356 * @vf: pointer to the VF info
357 * @vsi_id: id of VSI as provided by the FW
358 * @vsi_queue_id: vsi relative queue index
359 * @info: config. info
360 *
361 * configure tx queue
362 **/
363 static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
364 u16 vsi_queue_id,
365 struct i40e_virtchnl_txq_info *info)
366 {
367 struct i40e_pf *pf = vf->pf;
368 struct i40e_hw *hw = &pf->hw;
369 struct i40e_hmc_obj_txq tx_ctx;
370 struct i40e_vsi *vsi;
371 u16 pf_queue_id;
372 u32 qtx_ctl;
373 int ret = 0;
374
375 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
376 vsi = i40e_find_vsi_from_id(pf, vsi_id);
377
378 /* clear the context structure first */
379 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
380
381 /* only set the required fields */
382 tx_ctx.base = info->dma_ring_addr / 128;
383 tx_ctx.qlen = info->ring_len;
384 tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
385 tx_ctx.rdylist_act = 0;
386 tx_ctx.head_wb_ena = info->headwb_enabled;
387 tx_ctx.head_wb_addr = info->dma_headwb_addr;
388
389 /* clear the context in the HMC */
390 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
391 if (ret) {
392 dev_err(&pf->pdev->dev,
393 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
394 pf_queue_id, ret);
395 ret = -ENOENT;
396 goto error_context;
397 }
398
399 /* set the context in the HMC */
400 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
401 if (ret) {
402 dev_err(&pf->pdev->dev,
403 "Failed to set VF LAN Tx queue context %d error: %d\n",
404 pf_queue_id, ret);
405 ret = -ENOENT;
406 goto error_context;
407 }
408
409 /* associate this queue with the PCI VF function */
410 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
411 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
412 & I40E_QTX_CTL_PF_INDX_MASK);
413 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
414 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
415 & I40E_QTX_CTL_VFVM_INDX_MASK);
416 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
417 i40e_flush(hw);
418
419 error_context:
420 return ret;
421 }
422
423 /**
424 * i40e_config_vsi_rx_queue
425 * @vf: pointer to the VF info
426 * @vsi_id: id of VSI as provided by the FW
427 * @vsi_queue_id: vsi relative queue index
428 * @info: config. info
429 *
430 * configure rx queue
431 **/
432 static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
433 u16 vsi_queue_id,
434 struct i40e_virtchnl_rxq_info *info)
435 {
436 struct i40e_pf *pf = vf->pf;
437 struct i40e_hw *hw = &pf->hw;
438 struct i40e_hmc_obj_rxq rx_ctx;
439 u16 pf_queue_id;
440 int ret = 0;
441
442 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
443
444 /* clear the context structure first */
445 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
446
447 /* only set the required fields */
448 rx_ctx.base = info->dma_ring_addr / 128;
449 rx_ctx.qlen = info->ring_len;
450
451 if (info->splithdr_enabled) {
452 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
453 I40E_RX_SPLIT_IP |
454 I40E_RX_SPLIT_TCP_UDP |
455 I40E_RX_SPLIT_SCTP;
456 /* header length validation */
457 if (info->hdr_size > ((2 * 1024) - 64)) {
458 ret = -EINVAL;
459 goto error_param;
460 }
461 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
462
463 /* set splitalways mode 10b */
464 rx_ctx.dtype = 0x2;
465 }
466
467 /* databuffer length validation */
468 if (info->databuffer_size > ((16 * 1024) - 128)) {
469 ret = -EINVAL;
470 goto error_param;
471 }
472 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
473
474 /* max pkt. length validation */
475 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
476 ret = -EINVAL;
477 goto error_param;
478 }
479 rx_ctx.rxmax = info->max_pkt_size;
480
481 /* enable 32bytes desc always */
482 rx_ctx.dsize = 1;
483
484 /* default values */
485 rx_ctx.lrxqthresh = 2;
486 rx_ctx.crcstrip = 1;
487 rx_ctx.prefena = 1;
488 rx_ctx.l2tsel = 1;
489
490 /* clear the context in the HMC */
491 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
492 if (ret) {
493 dev_err(&pf->pdev->dev,
494 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
495 pf_queue_id, ret);
496 ret = -ENOENT;
497 goto error_param;
498 }
499
500 /* set the context in the HMC */
501 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
502 if (ret) {
503 dev_err(&pf->pdev->dev,
504 "Failed to set VF LAN Rx queue context %d error: %d\n",
505 pf_queue_id, ret);
506 ret = -ENOENT;
507 goto error_param;
508 }
509
510 error_param:
511 return ret;
512 }
513
514 /**
515 * i40e_alloc_vsi_res
516 * @vf: pointer to the VF info
517 * @type: type of VSI to allocate
518 *
519 * alloc VF vsi context & resources
520 **/
521 static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
522 {
523 struct i40e_mac_filter *f = NULL;
524 struct i40e_pf *pf = vf->pf;
525 struct i40e_vsi *vsi;
526 int ret = 0;
527
528 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
529
530 if (!vsi) {
531 dev_err(&pf->pdev->dev,
532 "add vsi failed for VF %d, aq_err %d\n",
533 vf->vf_id, pf->hw.aq.asq_last_status);
534 ret = -ENOENT;
535 goto error_alloc_vsi_res;
536 }
537 if (type == I40E_VSI_SRIOV) {
538 u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
539
540 vf->lan_vsi_idx = vsi->idx;
541 vf->lan_vsi_id = vsi->id;
542 /* If the port VLAN has been configured and then the
543 * VF driver was removed then the VSI port VLAN
544 * configuration was destroyed. Check if there is
545 * a port VLAN and restore the VSI configuration if
546 * needed.
547 */
548 if (vf->port_vlan_id)
549 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
550
551 spin_lock_bh(&vsi->mac_filter_list_lock);
552 if (is_valid_ether_addr(vf->default_lan_addr.addr)) {
553 f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
554 vf->port_vlan_id ? vf->port_vlan_id : -1,
555 true, false);
556 if (!f)
557 dev_info(&pf->pdev->dev,
558 "Could not add MAC filter %pM for VF %d\n",
559 vf->default_lan_addr.addr, vf->vf_id);
560 }
561 f = i40e_add_filter(vsi, brdcast,
562 vf->port_vlan_id ? vf->port_vlan_id : -1,
563 true, false);
564 if (!f)
565 dev_info(&pf->pdev->dev,
566 "Could not allocate VF broadcast filter\n");
567 spin_unlock_bh(&vsi->mac_filter_list_lock);
568 }
569
570 /* program mac filter */
571 ret = i40e_sync_vsi_filters(vsi);
572 if (ret)
573 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
574
575 /* Set VF bandwidth if specified */
576 if (vf->tx_rate) {
577 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
578 vf->tx_rate / 50, 0, NULL);
579 if (ret)
580 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
581 vf->vf_id, ret);
582 }
583
584 error_alloc_vsi_res:
585 return ret;
586 }
587
588 /**
589 * i40e_enable_vf_mappings
590 * @vf: pointer to the VF info
591 *
592 * enable VF mappings
593 **/
594 static void i40e_enable_vf_mappings(struct i40e_vf *vf)
595 {
596 struct i40e_pf *pf = vf->pf;
597 struct i40e_hw *hw = &pf->hw;
598 u32 reg, total_queue_pairs = 0;
599 int j;
600
601 /* Tell the hardware we're using noncontiguous mapping. HW requires
602 * that VF queues be mapped using this method, even when they are
603 * contiguous in real life
604 */
605 wr32(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
606 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
607
608 /* enable VF vplan_qtable mappings */
609 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
610 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
611
612 /* map PF queues to VF queues */
613 for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) {
614 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j);
615
616 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
617 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
618 total_queue_pairs++;
619 }
620
621 /* map PF queues to VSI */
622 for (j = 0; j < 7; j++) {
623 if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) {
624 reg = 0x07FF07FF; /* unused */
625 } else {
626 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
627 j * 2);
628 reg = qid;
629 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
630 (j * 2) + 1);
631 reg |= qid << 16;
632 }
633 wr32(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), reg);
634 }
635
636 i40e_flush(hw);
637 }
638
639 /**
640 * i40e_disable_vf_mappings
641 * @vf: pointer to the VF info
642 *
643 * disable VF mappings
644 **/
645 static void i40e_disable_vf_mappings(struct i40e_vf *vf)
646 {
647 struct i40e_pf *pf = vf->pf;
648 struct i40e_hw *hw = &pf->hw;
649 int i;
650
651 /* disable qp mappings */
652 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
653 for (i = 0; i < I40E_MAX_VSI_QP; i++)
654 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
655 I40E_QUEUE_END_OF_LIST);
656 i40e_flush(hw);
657 }
658
659 /**
660 * i40e_free_vf_res
661 * @vf: pointer to the VF info
662 *
663 * free VF resources
664 **/
665 static void i40e_free_vf_res(struct i40e_vf *vf)
666 {
667 struct i40e_pf *pf = vf->pf;
668 struct i40e_hw *hw = &pf->hw;
669 u32 reg_idx, reg;
670 int i, msix_vf;
671
672 /* free vsi & disconnect it from the parent uplink */
673 if (vf->lan_vsi_idx) {
674 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
675 vf->lan_vsi_idx = 0;
676 vf->lan_vsi_id = 0;
677 }
678 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
679
680 /* disable interrupts so the VF starts in a known state */
681 for (i = 0; i < msix_vf; i++) {
682 /* format is same for both registers */
683 if (0 == i)
684 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
685 else
686 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
687 (vf->vf_id))
688 + (i - 1));
689 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
690 i40e_flush(hw);
691 }
692
693 /* clear the irq settings */
694 for (i = 0; i < msix_vf; i++) {
695 /* format is same for both registers */
696 if (0 == i)
697 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
698 else
699 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
700 (vf->vf_id))
701 + (i - 1));
702 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
703 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
704 wr32(hw, reg_idx, reg);
705 i40e_flush(hw);
706 }
707 /* reset some of the state varibles keeping
708 * track of the resources
709 */
710 vf->num_queue_pairs = 0;
711 vf->vf_states = 0;
712 clear_bit(I40E_VF_STAT_INIT, &vf->vf_states);
713 }
714
715 /**
716 * i40e_alloc_vf_res
717 * @vf: pointer to the VF info
718 *
719 * allocate VF resources
720 **/
721 static int i40e_alloc_vf_res(struct i40e_vf *vf)
722 {
723 struct i40e_pf *pf = vf->pf;
724 int total_queue_pairs = 0;
725 int ret;
726
727 /* allocate hw vsi context & associated resources */
728 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
729 if (ret)
730 goto error_alloc;
731 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
732 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
733
734 /* store the total qps number for the runtime
735 * VF req validation
736 */
737 vf->num_queue_pairs = total_queue_pairs;
738
739 /* VF is now completely initialized */
740 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
741
742 error_alloc:
743 if (ret)
744 i40e_free_vf_res(vf);
745
746 return ret;
747 }
748
749 #define VF_DEVICE_STATUS 0xAA
750 #define VF_TRANS_PENDING_MASK 0x20
751 /**
752 * i40e_quiesce_vf_pci
753 * @vf: pointer to the VF structure
754 *
755 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
756 * if the transactions never clear.
757 **/
758 static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
759 {
760 struct i40e_pf *pf = vf->pf;
761 struct i40e_hw *hw = &pf->hw;
762 int vf_abs_id, i;
763 u32 reg;
764
765 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
766
767 wr32(hw, I40E_PF_PCI_CIAA,
768 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
769 for (i = 0; i < 100; i++) {
770 reg = rd32(hw, I40E_PF_PCI_CIAD);
771 if ((reg & VF_TRANS_PENDING_MASK) == 0)
772 return 0;
773 udelay(1);
774 }
775 return -EIO;
776 }
777
778 /**
779 * i40e_reset_vf
780 * @vf: pointer to the VF structure
781 * @flr: VFLR was issued or not
782 *
783 * reset the VF
784 **/
785 void i40e_reset_vf(struct i40e_vf *vf, bool flr)
786 {
787 struct i40e_pf *pf = vf->pf;
788 struct i40e_hw *hw = &pf->hw;
789 bool rsd = false;
790 int i;
791 u32 reg;
792
793 if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
794 return;
795
796 /* warn the VF */
797 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
798
799 /* In the case of a VFLR, the HW has already reset the VF and we
800 * just need to clean up, so don't hit the VFRTRIG register.
801 */
802 if (!flr) {
803 /* reset VF using VPGEN_VFRTRIG reg */
804 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
805 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
806 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
807 i40e_flush(hw);
808 }
809
810 if (i40e_quiesce_vf_pci(vf))
811 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
812 vf->vf_id);
813
814 /* poll VPGEN_VFRSTAT reg to make sure
815 * that reset is complete
816 */
817 for (i = 0; i < 10; i++) {
818 /* VF reset requires driver to first reset the VF and then
819 * poll the status register to make sure that the reset
820 * completed successfully. Due to internal HW FIFO flushes,
821 * we must wait 10ms before the register will be valid.
822 */
823 usleep_range(10000, 20000);
824 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
825 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
826 rsd = true;
827 break;
828 }
829 }
830
831 if (flr)
832 usleep_range(10000, 20000);
833
834 if (!rsd)
835 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
836 vf->vf_id);
837 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
838 /* clear the reset bit in the VPGEN_VFRTRIG reg */
839 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
840 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
841 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
842
843 /* On initial reset, we won't have any queues */
844 if (vf->lan_vsi_idx == 0)
845 goto complete_reset;
846
847 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false);
848 complete_reset:
849 /* reallocate VF resources to reset the VSI state */
850 i40e_free_vf_res(vf);
851 if (!i40e_alloc_vf_res(vf)) {
852 i40e_enable_vf_mappings(vf);
853 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
854 clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
855 }
856 /* tell the VF the reset is done */
857 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
858 i40e_flush(hw);
859 clear_bit(__I40E_VF_DISABLE, &pf->state);
860 }
861
862 /**
863 * i40e_free_vfs
864 * @pf: pointer to the PF structure
865 *
866 * free VF resources
867 **/
868 void i40e_free_vfs(struct i40e_pf *pf)
869 {
870 struct i40e_hw *hw = &pf->hw;
871 u32 reg_idx, bit_idx;
872 int i, tmp, vf_id;
873
874 if (!pf->vf)
875 return;
876 while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
877 usleep_range(1000, 2000);
878
879 for (i = 0; i < pf->num_alloc_vfs; i++)
880 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
881 i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
882 false);
883
884 for (i = 0; i < pf->num_alloc_vfs; i++)
885 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
886 i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
887 false);
888
889 /* Disable IOV before freeing resources. This lets any VF drivers
890 * running in the host get themselves cleaned up before we yank
891 * the carpet out from underneath their feet.
892 */
893 if (!pci_vfs_assigned(pf->pdev))
894 pci_disable_sriov(pf->pdev);
895 else
896 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
897
898 msleep(20); /* let any messages in transit get finished up */
899
900 /* free up VF resources */
901 tmp = pf->num_alloc_vfs;
902 pf->num_alloc_vfs = 0;
903 for (i = 0; i < tmp; i++) {
904 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
905 i40e_free_vf_res(&pf->vf[i]);
906 /* disable qp mappings */
907 i40e_disable_vf_mappings(&pf->vf[i]);
908 }
909
910 kfree(pf->vf);
911 pf->vf = NULL;
912
913 /* This check is for when the driver is unloaded while VFs are
914 * assigned. Setting the number of VFs to 0 through sysfs is caught
915 * before this function ever gets called.
916 */
917 if (!pci_vfs_assigned(pf->pdev)) {
918 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
919 * work correctly when SR-IOV gets re-enabled.
920 */
921 for (vf_id = 0; vf_id < tmp; vf_id++) {
922 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
923 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
924 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
925 }
926 }
927 clear_bit(__I40E_VF_DISABLE, &pf->state);
928 }
929
930 #ifdef CONFIG_PCI_IOV
931 /**
932 * i40e_alloc_vfs
933 * @pf: pointer to the PF structure
934 * @num_alloc_vfs: number of VFs to allocate
935 *
936 * allocate VF resources
937 **/
938 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
939 {
940 struct i40e_vf *vfs;
941 int i, ret = 0;
942
943 /* Disable interrupt 0 so we don't try to handle the VFLR. */
944 i40e_irq_dynamic_disable_icr0(pf);
945
946 /* Check to see if we're just allocating resources for extant VFs */
947 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
948 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
949 if (ret) {
950 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
951 pf->num_alloc_vfs = 0;
952 goto err_iov;
953 }
954 }
955 /* allocate memory */
956 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
957 if (!vfs) {
958 ret = -ENOMEM;
959 goto err_alloc;
960 }
961 pf->vf = vfs;
962
963 /* apply default profile */
964 for (i = 0; i < num_alloc_vfs; i++) {
965 vfs[i].pf = pf;
966 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
967 vfs[i].vf_id = i;
968
969 /* assign default capabilities */
970 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
971 vfs[i].spoofchk = true;
972 /* VF resources get allocated during reset */
973 i40e_reset_vf(&vfs[i], false);
974
975 }
976 pf->num_alloc_vfs = num_alloc_vfs;
977
978 err_alloc:
979 if (ret)
980 i40e_free_vfs(pf);
981 err_iov:
982 /* Re-enable interrupt 0. */
983 i40e_irq_dynamic_enable_icr0(pf);
984 return ret;
985 }
986
987 #endif
988 /**
989 * i40e_pci_sriov_enable
990 * @pdev: pointer to a pci_dev structure
991 * @num_vfs: number of VFs to allocate
992 *
993 * Enable or change the number of VFs
994 **/
995 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
996 {
997 #ifdef CONFIG_PCI_IOV
998 struct i40e_pf *pf = pci_get_drvdata(pdev);
999 int pre_existing_vfs = pci_num_vf(pdev);
1000 int err = 0;
1001
1002 if (test_bit(__I40E_TESTING, &pf->state)) {
1003 dev_warn(&pdev->dev,
1004 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1005 err = -EPERM;
1006 goto err_out;
1007 }
1008
1009 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1010 i40e_free_vfs(pf);
1011 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1012 goto out;
1013
1014 if (num_vfs > pf->num_req_vfs) {
1015 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1016 num_vfs, pf->num_req_vfs);
1017 err = -EPERM;
1018 goto err_out;
1019 }
1020
1021 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1022 err = i40e_alloc_vfs(pf, num_vfs);
1023 if (err) {
1024 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1025 goto err_out;
1026 }
1027
1028 out:
1029 return num_vfs;
1030
1031 err_out:
1032 return err;
1033 #endif
1034 return 0;
1035 }
1036
1037 /**
1038 * i40e_pci_sriov_configure
1039 * @pdev: pointer to a pci_dev structure
1040 * @num_vfs: number of VFs to allocate
1041 *
1042 * Enable or change the number of VFs. Called when the user updates the number
1043 * of VFs in sysfs.
1044 **/
1045 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1046 {
1047 struct i40e_pf *pf = pci_get_drvdata(pdev);
1048
1049 if (num_vfs) {
1050 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1051 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1052 i40e_do_reset_safe(pf,
1053 BIT_ULL(__I40E_PF_RESET_REQUESTED));
1054 }
1055 return i40e_pci_sriov_enable(pdev, num_vfs);
1056 }
1057
1058 if (!pci_vfs_assigned(pf->pdev)) {
1059 i40e_free_vfs(pf);
1060 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1061 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
1062 } else {
1063 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1064 return -EINVAL;
1065 }
1066 return 0;
1067 }
1068
1069 /***********************virtual channel routines******************/
1070
1071 /**
1072 * i40e_vc_send_msg_to_vf
1073 * @vf: pointer to the VF info
1074 * @v_opcode: virtual channel opcode
1075 * @v_retval: virtual channel return value
1076 * @msg: pointer to the msg buffer
1077 * @msglen: msg length
1078 *
1079 * send msg to VF
1080 **/
1081 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1082 u32 v_retval, u8 *msg, u16 msglen)
1083 {
1084 struct i40e_pf *pf;
1085 struct i40e_hw *hw;
1086 int abs_vf_id;
1087 i40e_status aq_ret;
1088
1089 /* validate the request */
1090 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1091 return -EINVAL;
1092
1093 pf = vf->pf;
1094 hw = &pf->hw;
1095 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1096
1097 /* single place to detect unsuccessful return values */
1098 if (v_retval) {
1099 vf->num_invalid_msgs++;
1100 dev_err(&pf->pdev->dev, "VF %d failed opcode %d, error: %d\n",
1101 vf->vf_id, v_opcode, v_retval);
1102 if (vf->num_invalid_msgs >
1103 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1104 dev_err(&pf->pdev->dev,
1105 "Number of invalid messages exceeded for VF %d\n",
1106 vf->vf_id);
1107 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1108 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1109 }
1110 } else {
1111 vf->num_valid_msgs++;
1112 /* reset the invalid counter, if a valid message is received. */
1113 vf->num_invalid_msgs = 0;
1114 }
1115
1116 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1117 msg, msglen, NULL);
1118 if (aq_ret) {
1119 dev_err(&pf->pdev->dev,
1120 "Unable to send the message to VF %d aq_err %d\n",
1121 vf->vf_id, pf->hw.aq.asq_last_status);
1122 return -EIO;
1123 }
1124
1125 return 0;
1126 }
1127
1128 /**
1129 * i40e_vc_send_resp_to_vf
1130 * @vf: pointer to the VF info
1131 * @opcode: operation code
1132 * @retval: return value
1133 *
1134 * send resp msg to VF
1135 **/
1136 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1137 enum i40e_virtchnl_ops opcode,
1138 i40e_status retval)
1139 {
1140 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1141 }
1142
1143 /**
1144 * i40e_vc_get_version_msg
1145 * @vf: pointer to the VF info
1146 *
1147 * called from the VF to request the API version used by the PF
1148 **/
1149 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1150 {
1151 struct i40e_virtchnl_version_info info = {
1152 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1153 };
1154
1155 vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg;
1156 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1157 if (VF_IS_V10(vf))
1158 info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1159 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1160 I40E_SUCCESS, (u8 *)&info,
1161 sizeof(struct
1162 i40e_virtchnl_version_info));
1163 }
1164
1165 /**
1166 * i40e_vc_get_vf_resources_msg
1167 * @vf: pointer to the VF info
1168 * @msg: pointer to the msg buffer
1169 * @msglen: msg length
1170 *
1171 * called from the VF to request its resources
1172 **/
1173 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1174 {
1175 struct i40e_virtchnl_vf_resource *vfres = NULL;
1176 struct i40e_pf *pf = vf->pf;
1177 i40e_status aq_ret = 0;
1178 struct i40e_vsi *vsi;
1179 int i = 0, len = 0;
1180 int num_vsis = 1;
1181 int ret;
1182
1183 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1184 aq_ret = I40E_ERR_PARAM;
1185 goto err;
1186 }
1187
1188 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1189 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1190
1191 vfres = kzalloc(len, GFP_KERNEL);
1192 if (!vfres) {
1193 aq_ret = I40E_ERR_NO_MEMORY;
1194 len = 0;
1195 goto err;
1196 }
1197 if (VF_IS_V11(vf))
1198 vf->driver_caps = *(u32 *)msg;
1199 else
1200 vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
1201 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
1202 I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1203
1204 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1205 vsi = pf->vsi[vf->lan_vsi_idx];
1206 if (!vsi->info.pvid)
1207 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1208 if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) {
1209 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ)
1210 vfres->vf_offload_flags |=
1211 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1212 } else {
1213 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG;
1214 }
1215
1216 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
1217 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
1218 vfres->vf_offload_flags |=
1219 I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
1220 }
1221
1222 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING)
1223 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1224
1225 if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) {
1226 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1227 vfres->vf_offload_flags |=
1228 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
1229 }
1230
1231 vfres->num_vsis = num_vsis;
1232 vfres->num_queue_pairs = vf->num_queue_pairs;
1233 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1234 if (vf->lan_vsi_idx) {
1235 vfres->vsi_res[i].vsi_id = vf->lan_vsi_id;
1236 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1237 vfres->vsi_res[i].num_queue_pairs = vsi->alloc_queue_pairs;
1238 /* VFs only use TC 0 */
1239 vfres->vsi_res[i].qset_handle
1240 = le16_to_cpu(vsi->info.qs_handle[0]);
1241 ether_addr_copy(vfres->vsi_res[i].default_mac_addr,
1242 vf->default_lan_addr.addr);
1243 i++;
1244 }
1245 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1246
1247 err:
1248 /* send the response back to the VF */
1249 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1250 aq_ret, (u8 *)vfres, len);
1251
1252 kfree(vfres);
1253 return ret;
1254 }
1255
1256 /**
1257 * i40e_vc_reset_vf_msg
1258 * @vf: pointer to the VF info
1259 * @msg: pointer to the msg buffer
1260 * @msglen: msg length
1261 *
1262 * called from the VF to reset itself,
1263 * unlike other virtchnl messages, PF driver
1264 * doesn't send the response back to the VF
1265 **/
1266 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1267 {
1268 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1269 i40e_reset_vf(vf, false);
1270 }
1271
1272 /**
1273 * i40e_vc_config_promiscuous_mode_msg
1274 * @vf: pointer to the VF info
1275 * @msg: pointer to the msg buffer
1276 * @msglen: msg length
1277 *
1278 * called from the VF to configure the promiscuous mode of
1279 * VF vsis
1280 **/
1281 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1282 u8 *msg, u16 msglen)
1283 {
1284 struct i40e_virtchnl_promisc_info *info =
1285 (struct i40e_virtchnl_promisc_info *)msg;
1286 struct i40e_pf *pf = vf->pf;
1287 struct i40e_hw *hw = &pf->hw;
1288 struct i40e_vsi *vsi;
1289 bool allmulti = false;
1290 i40e_status aq_ret;
1291
1292 vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1293 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1294 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1295 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1296 (vsi->type != I40E_VSI_FCOE)) {
1297 aq_ret = I40E_ERR_PARAM;
1298 goto error_param;
1299 }
1300 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1301 allmulti = true;
1302 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
1303 allmulti, NULL);
1304
1305 error_param:
1306 /* send the response to the VF */
1307 return i40e_vc_send_resp_to_vf(vf,
1308 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1309 aq_ret);
1310 }
1311
1312 /**
1313 * i40e_vc_config_queues_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 rx/tx
1319 * queues
1320 **/
1321 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1322 {
1323 struct i40e_virtchnl_vsi_queue_config_info *qci =
1324 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1325 struct i40e_virtchnl_queue_pair_info *qpi;
1326 struct i40e_pf *pf = vf->pf;
1327 u16 vsi_id, vsi_queue_id;
1328 i40e_status aq_ret = 0;
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 vsi_id = qci->vsi_id;
1337 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1338 aq_ret = I40E_ERR_PARAM;
1339 goto error_param;
1340 }
1341 for (i = 0; i < qci->num_queue_pairs; i++) {
1342 qpi = &qci->qpair[i];
1343 vsi_queue_id = qpi->txq.queue_id;
1344 if ((qpi->txq.vsi_id != vsi_id) ||
1345 (qpi->rxq.vsi_id != vsi_id) ||
1346 (qpi->rxq.queue_id != vsi_queue_id) ||
1347 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1348 aq_ret = I40E_ERR_PARAM;
1349 goto error_param;
1350 }
1351
1352 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1353 &qpi->rxq) ||
1354 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1355 &qpi->txq)) {
1356 aq_ret = I40E_ERR_PARAM;
1357 goto error_param;
1358 }
1359 }
1360 /* set vsi num_queue_pairs in use to num configured by VF */
1361 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1362
1363 error_param:
1364 /* send the response to the VF */
1365 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1366 aq_ret);
1367 }
1368
1369 /**
1370 * i40e_vc_config_irq_map_msg
1371 * @vf: pointer to the VF info
1372 * @msg: pointer to the msg buffer
1373 * @msglen: msg length
1374 *
1375 * called from the VF to configure the irq to
1376 * queue map
1377 **/
1378 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1379 {
1380 struct i40e_virtchnl_irq_map_info *irqmap_info =
1381 (struct i40e_virtchnl_irq_map_info *)msg;
1382 struct i40e_virtchnl_vector_map *map;
1383 u16 vsi_id, vsi_queue_id, vector_id;
1384 i40e_status aq_ret = 0;
1385 unsigned long tempmap;
1386 int i;
1387
1388 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1389 aq_ret = I40E_ERR_PARAM;
1390 goto error_param;
1391 }
1392
1393 for (i = 0; i < irqmap_info->num_vectors; i++) {
1394 map = &irqmap_info->vecmap[i];
1395
1396 vector_id = map->vector_id;
1397 vsi_id = map->vsi_id;
1398 /* validate msg params */
1399 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1400 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1401 aq_ret = I40E_ERR_PARAM;
1402 goto error_param;
1403 }
1404
1405 /* lookout for the invalid queue index */
1406 tempmap = map->rxq_map;
1407 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1408 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1409 vsi_queue_id)) {
1410 aq_ret = I40E_ERR_PARAM;
1411 goto error_param;
1412 }
1413 }
1414
1415 tempmap = map->txq_map;
1416 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1417 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1418 vsi_queue_id)) {
1419 aq_ret = I40E_ERR_PARAM;
1420 goto error_param;
1421 }
1422 }
1423
1424 i40e_config_irq_link_list(vf, vsi_id, map);
1425 }
1426 error_param:
1427 /* send the response to the VF */
1428 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1429 aq_ret);
1430 }
1431
1432 /**
1433 * i40e_vc_enable_queues_msg
1434 * @vf: pointer to the VF info
1435 * @msg: pointer to the msg buffer
1436 * @msglen: msg length
1437 *
1438 * called from the VF to enable all or specific queue(s)
1439 **/
1440 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1441 {
1442 struct i40e_virtchnl_queue_select *vqs =
1443 (struct i40e_virtchnl_queue_select *)msg;
1444 struct i40e_pf *pf = vf->pf;
1445 u16 vsi_id = vqs->vsi_id;
1446 i40e_status aq_ret = 0;
1447
1448 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1449 aq_ret = I40E_ERR_PARAM;
1450 goto error_param;
1451 }
1452
1453 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1454 aq_ret = I40E_ERR_PARAM;
1455 goto error_param;
1456 }
1457
1458 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1459 aq_ret = I40E_ERR_PARAM;
1460 goto error_param;
1461 }
1462
1463 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true))
1464 aq_ret = I40E_ERR_TIMEOUT;
1465 error_param:
1466 /* send the response to the VF */
1467 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1468 aq_ret);
1469 }
1470
1471 /**
1472 * i40e_vc_disable_queues_msg
1473 * @vf: pointer to the VF info
1474 * @msg: pointer to the msg buffer
1475 * @msglen: msg length
1476 *
1477 * called from the VF to disable all or specific
1478 * queue(s)
1479 **/
1480 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1481 {
1482 struct i40e_virtchnl_queue_select *vqs =
1483 (struct i40e_virtchnl_queue_select *)msg;
1484 struct i40e_pf *pf = vf->pf;
1485 i40e_status aq_ret = 0;
1486
1487 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1488 aq_ret = I40E_ERR_PARAM;
1489 goto error_param;
1490 }
1491
1492 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1493 aq_ret = I40E_ERR_PARAM;
1494 goto error_param;
1495 }
1496
1497 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1498 aq_ret = I40E_ERR_PARAM;
1499 goto error_param;
1500 }
1501
1502 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false))
1503 aq_ret = I40E_ERR_TIMEOUT;
1504
1505 error_param:
1506 /* send the response to the VF */
1507 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1508 aq_ret);
1509 }
1510
1511 /**
1512 * i40e_vc_get_stats_msg
1513 * @vf: pointer to the VF info
1514 * @msg: pointer to the msg buffer
1515 * @msglen: msg length
1516 *
1517 * called from the VF to get vsi stats
1518 **/
1519 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1520 {
1521 struct i40e_virtchnl_queue_select *vqs =
1522 (struct i40e_virtchnl_queue_select *)msg;
1523 struct i40e_pf *pf = vf->pf;
1524 struct i40e_eth_stats stats;
1525 i40e_status aq_ret = 0;
1526 struct i40e_vsi *vsi;
1527
1528 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1529
1530 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1531 aq_ret = I40E_ERR_PARAM;
1532 goto error_param;
1533 }
1534
1535 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1536 aq_ret = I40E_ERR_PARAM;
1537 goto error_param;
1538 }
1539
1540 vsi = pf->vsi[vf->lan_vsi_idx];
1541 if (!vsi) {
1542 aq_ret = I40E_ERR_PARAM;
1543 goto error_param;
1544 }
1545 i40e_update_eth_stats(vsi);
1546 stats = vsi->eth_stats;
1547
1548 error_param:
1549 /* send the response back to the VF */
1550 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1551 (u8 *)&stats, sizeof(stats));
1552 }
1553
1554 /**
1555 * i40e_check_vf_permission
1556 * @vf: pointer to the VF info
1557 * @macaddr: pointer to the MAC Address being checked
1558 *
1559 * Check if the VF has permission to add or delete unicast MAC address
1560 * filters and return error code -EPERM if not. Then check if the
1561 * address filter requested is broadcast or zero and if so return
1562 * an invalid MAC address error code.
1563 **/
1564 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1565 {
1566 struct i40e_pf *pf = vf->pf;
1567 int ret = 0;
1568
1569 if (is_broadcast_ether_addr(macaddr) ||
1570 is_zero_ether_addr(macaddr)) {
1571 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1572 ret = I40E_ERR_INVALID_MAC_ADDR;
1573 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1574 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1575 /* If the host VMM administrator has set the VF MAC address
1576 * administratively via the ndo_set_vf_mac command then deny
1577 * permission to the VF to add or delete unicast MAC addresses.
1578 * The VF may request to set the MAC address filter already
1579 * assigned to it so do not return an error in that case.
1580 */
1581 dev_err(&pf->pdev->dev,
1582 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
1583 ret = -EPERM;
1584 }
1585 return ret;
1586 }
1587
1588 /**
1589 * i40e_vc_add_mac_addr_msg
1590 * @vf: pointer to the VF info
1591 * @msg: pointer to the msg buffer
1592 * @msglen: msg length
1593 *
1594 * add guest mac address filter
1595 **/
1596 static int i40e_vc_add_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 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1615 if (ret)
1616 goto error_param;
1617 }
1618 vsi = pf->vsi[vf->lan_vsi_idx];
1619
1620 /* Lock once, because all function inside for loop accesses VSI's
1621 * MAC filter list which needs to be protected using same lock.
1622 */
1623 spin_lock_bh(&vsi->mac_filter_list_lock);
1624
1625 /* add new addresses to the list */
1626 for (i = 0; i < al->num_elements; i++) {
1627 struct i40e_mac_filter *f;
1628
1629 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1630 if (!f) {
1631 if (i40e_is_vsi_in_vlan(vsi))
1632 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1633 true, false);
1634 else
1635 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1636 true, false);
1637 }
1638
1639 if (!f) {
1640 dev_err(&pf->pdev->dev,
1641 "Unable to add MAC filter %pM for VF %d\n",
1642 al->list[i].addr, vf->vf_id);
1643 ret = I40E_ERR_PARAM;
1644 spin_unlock_bh(&vsi->mac_filter_list_lock);
1645 goto error_param;
1646 }
1647 }
1648 spin_unlock_bh(&vsi->mac_filter_list_lock);
1649
1650 /* program the updated filter list */
1651 ret = i40e_sync_vsi_filters(vsi);
1652 if (ret)
1653 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
1654 vf->vf_id, ret);
1655
1656 error_param:
1657 /* send the response to the VF */
1658 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1659 ret);
1660 }
1661
1662 /**
1663 * i40e_vc_del_mac_addr_msg
1664 * @vf: pointer to the VF info
1665 * @msg: pointer to the msg buffer
1666 * @msglen: msg length
1667 *
1668 * remove guest mac address filter
1669 **/
1670 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1671 {
1672 struct i40e_virtchnl_ether_addr_list *al =
1673 (struct i40e_virtchnl_ether_addr_list *)msg;
1674 struct i40e_pf *pf = vf->pf;
1675 struct i40e_vsi *vsi = NULL;
1676 u16 vsi_id = al->vsi_id;
1677 i40e_status ret = 0;
1678 int i;
1679
1680 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1681 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1682 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1683 ret = I40E_ERR_PARAM;
1684 goto error_param;
1685 }
1686
1687 for (i = 0; i < al->num_elements; i++) {
1688 if (is_broadcast_ether_addr(al->list[i].addr) ||
1689 is_zero_ether_addr(al->list[i].addr)) {
1690 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
1691 al->list[i].addr, vf->vf_id);
1692 ret = I40E_ERR_INVALID_MAC_ADDR;
1693 goto error_param;
1694 }
1695 }
1696 vsi = pf->vsi[vf->lan_vsi_idx];
1697
1698 spin_lock_bh(&vsi->mac_filter_list_lock);
1699 /* delete addresses from the list */
1700 for (i = 0; i < al->num_elements; i++)
1701 if (i40e_del_mac_all_vlan(vsi, al->list[i].addr, true, false)) {
1702 ret = I40E_ERR_INVALID_MAC_ADDR;
1703 spin_unlock_bh(&vsi->mac_filter_list_lock);
1704 goto error_param;
1705 }
1706
1707 spin_unlock_bh(&vsi->mac_filter_list_lock);
1708
1709 /* program the updated filter list */
1710 ret = i40e_sync_vsi_filters(vsi);
1711 if (ret)
1712 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
1713 vf->vf_id, ret);
1714
1715 error_param:
1716 /* send the response to the VF */
1717 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
1718 ret);
1719 }
1720
1721 /**
1722 * i40e_vc_add_vlan_msg
1723 * @vf: pointer to the VF info
1724 * @msg: pointer to the msg buffer
1725 * @msglen: msg length
1726 *
1727 * program guest vlan id
1728 **/
1729 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1730 {
1731 struct i40e_virtchnl_vlan_filter_list *vfl =
1732 (struct i40e_virtchnl_vlan_filter_list *)msg;
1733 struct i40e_pf *pf = vf->pf;
1734 struct i40e_vsi *vsi = NULL;
1735 u16 vsi_id = vfl->vsi_id;
1736 i40e_status aq_ret = 0;
1737 int i;
1738
1739 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1740 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1741 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1742 aq_ret = I40E_ERR_PARAM;
1743 goto error_param;
1744 }
1745
1746 for (i = 0; i < vfl->num_elements; i++) {
1747 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1748 aq_ret = I40E_ERR_PARAM;
1749 dev_err(&pf->pdev->dev,
1750 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1751 goto error_param;
1752 }
1753 }
1754 vsi = pf->vsi[vf->lan_vsi_idx];
1755 if (vsi->info.pvid) {
1756 aq_ret = I40E_ERR_PARAM;
1757 goto error_param;
1758 }
1759
1760 i40e_vlan_stripping_enable(vsi);
1761 for (i = 0; i < vfl->num_elements; i++) {
1762 /* add new VLAN filter */
1763 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1764
1765 if (ret)
1766 dev_err(&pf->pdev->dev,
1767 "Unable to add VLAN filter %d for VF %d, error %d\n",
1768 vfl->vlan_id[i], vf->vf_id, ret);
1769 }
1770
1771 error_param:
1772 /* send the response to the VF */
1773 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1774 }
1775
1776 /**
1777 * i40e_vc_remove_vlan_msg
1778 * @vf: pointer to the VF info
1779 * @msg: pointer to the msg buffer
1780 * @msglen: msg length
1781 *
1782 * remove programmed guest vlan id
1783 **/
1784 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1785 {
1786 struct i40e_virtchnl_vlan_filter_list *vfl =
1787 (struct i40e_virtchnl_vlan_filter_list *)msg;
1788 struct i40e_pf *pf = vf->pf;
1789 struct i40e_vsi *vsi = NULL;
1790 u16 vsi_id = vfl->vsi_id;
1791 i40e_status aq_ret = 0;
1792 int i;
1793
1794 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1795 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1796 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1797 aq_ret = I40E_ERR_PARAM;
1798 goto error_param;
1799 }
1800
1801 for (i = 0; i < vfl->num_elements; i++) {
1802 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1803 aq_ret = I40E_ERR_PARAM;
1804 goto error_param;
1805 }
1806 }
1807
1808 vsi = pf->vsi[vf->lan_vsi_idx];
1809 if (vsi->info.pvid) {
1810 aq_ret = I40E_ERR_PARAM;
1811 goto error_param;
1812 }
1813
1814 for (i = 0; i < vfl->num_elements; i++) {
1815 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1816
1817 if (ret)
1818 dev_err(&pf->pdev->dev,
1819 "Unable to delete VLAN filter %d for VF %d, error %d\n",
1820 vfl->vlan_id[i], vf->vf_id, ret);
1821 }
1822
1823 error_param:
1824 /* send the response to the VF */
1825 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1826 }
1827
1828 /**
1829 * i40e_vc_validate_vf_msg
1830 * @vf: pointer to the VF info
1831 * @msg: pointer to the msg buffer
1832 * @msglen: msg length
1833 * @msghndl: msg handle
1834 *
1835 * validate msg
1836 **/
1837 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
1838 u32 v_retval, u8 *msg, u16 msglen)
1839 {
1840 bool err_msg_format = false;
1841 int valid_len;
1842
1843 /* Check if VF is disabled. */
1844 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
1845 return I40E_ERR_PARAM;
1846
1847 /* Validate message length. */
1848 switch (v_opcode) {
1849 case I40E_VIRTCHNL_OP_VERSION:
1850 valid_len = sizeof(struct i40e_virtchnl_version_info);
1851 break;
1852 case I40E_VIRTCHNL_OP_RESET_VF:
1853 valid_len = 0;
1854 break;
1855 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1856 if (VF_IS_V11(vf))
1857 valid_len = sizeof(u32);
1858 else
1859 valid_len = 0;
1860 break;
1861 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
1862 valid_len = sizeof(struct i40e_virtchnl_txq_info);
1863 break;
1864 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
1865 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
1866 break;
1867 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1868 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
1869 if (msglen >= valid_len) {
1870 struct i40e_virtchnl_vsi_queue_config_info *vqc =
1871 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1872 valid_len += (vqc->num_queue_pairs *
1873 sizeof(struct
1874 i40e_virtchnl_queue_pair_info));
1875 if (vqc->num_queue_pairs == 0)
1876 err_msg_format = true;
1877 }
1878 break;
1879 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1880 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
1881 if (msglen >= valid_len) {
1882 struct i40e_virtchnl_irq_map_info *vimi =
1883 (struct i40e_virtchnl_irq_map_info *)msg;
1884 valid_len += (vimi->num_vectors *
1885 sizeof(struct i40e_virtchnl_vector_map));
1886 if (vimi->num_vectors == 0)
1887 err_msg_format = true;
1888 }
1889 break;
1890 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1891 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1892 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1893 break;
1894 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1895 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1896 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
1897 if (msglen >= valid_len) {
1898 struct i40e_virtchnl_ether_addr_list *veal =
1899 (struct i40e_virtchnl_ether_addr_list *)msg;
1900 valid_len += veal->num_elements *
1901 sizeof(struct i40e_virtchnl_ether_addr);
1902 if (veal->num_elements == 0)
1903 err_msg_format = true;
1904 }
1905 break;
1906 case I40E_VIRTCHNL_OP_ADD_VLAN:
1907 case I40E_VIRTCHNL_OP_DEL_VLAN:
1908 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
1909 if (msglen >= valid_len) {
1910 struct i40e_virtchnl_vlan_filter_list *vfl =
1911 (struct i40e_virtchnl_vlan_filter_list *)msg;
1912 valid_len += vfl->num_elements * sizeof(u16);
1913 if (vfl->num_elements == 0)
1914 err_msg_format = true;
1915 }
1916 break;
1917 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1918 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
1919 break;
1920 case I40E_VIRTCHNL_OP_GET_STATS:
1921 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1922 break;
1923 /* These are always errors coming from the VF. */
1924 case I40E_VIRTCHNL_OP_EVENT:
1925 case I40E_VIRTCHNL_OP_UNKNOWN:
1926 default:
1927 return -EPERM;
1928 }
1929 /* few more checks */
1930 if ((valid_len != msglen) || (err_msg_format)) {
1931 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
1932 return -EINVAL;
1933 } else {
1934 return 0;
1935 }
1936 }
1937
1938 /**
1939 * i40e_vc_process_vf_msg
1940 * @pf: pointer to the PF structure
1941 * @vf_id: source VF id
1942 * @msg: pointer to the msg buffer
1943 * @msglen: msg length
1944 * @msghndl: msg handle
1945 *
1946 * called from the common aeq/arq handler to
1947 * process request from VF
1948 **/
1949 int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
1950 u32 v_retval, u8 *msg, u16 msglen)
1951 {
1952 struct i40e_hw *hw = &pf->hw;
1953 unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
1954 struct i40e_vf *vf;
1955 int ret;
1956
1957 pf->vf_aq_requests++;
1958 if (local_vf_id >= pf->num_alloc_vfs)
1959 return -EINVAL;
1960 vf = &(pf->vf[local_vf_id]);
1961 /* perform basic checks on the msg */
1962 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
1963
1964 if (ret) {
1965 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
1966 local_vf_id, v_opcode, msglen);
1967 return ret;
1968 }
1969
1970 switch (v_opcode) {
1971 case I40E_VIRTCHNL_OP_VERSION:
1972 ret = i40e_vc_get_version_msg(vf, msg);
1973 break;
1974 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1975 ret = i40e_vc_get_vf_resources_msg(vf, msg);
1976 break;
1977 case I40E_VIRTCHNL_OP_RESET_VF:
1978 i40e_vc_reset_vf_msg(vf);
1979 ret = 0;
1980 break;
1981 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1982 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
1983 break;
1984 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1985 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
1986 break;
1987 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1988 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
1989 break;
1990 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1991 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
1992 i40e_vc_notify_vf_link_state(vf);
1993 break;
1994 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1995 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
1996 break;
1997 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1998 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
1999 break;
2000 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
2001 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
2002 break;
2003 case I40E_VIRTCHNL_OP_ADD_VLAN:
2004 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
2005 break;
2006 case I40E_VIRTCHNL_OP_DEL_VLAN:
2007 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
2008 break;
2009 case I40E_VIRTCHNL_OP_GET_STATS:
2010 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
2011 break;
2012 case I40E_VIRTCHNL_OP_UNKNOWN:
2013 default:
2014 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
2015 v_opcode, local_vf_id);
2016 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
2017 I40E_ERR_NOT_IMPLEMENTED);
2018 break;
2019 }
2020
2021 return ret;
2022 }
2023
2024 /**
2025 * i40e_vc_process_vflr_event
2026 * @pf: pointer to the PF structure
2027 *
2028 * called from the vlfr irq handler to
2029 * free up VF resources and state variables
2030 **/
2031 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
2032 {
2033 u32 reg, reg_idx, bit_idx, vf_id;
2034 struct i40e_hw *hw = &pf->hw;
2035 struct i40e_vf *vf;
2036
2037 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
2038 return 0;
2039
2040 /* re-enable vflr interrupt cause */
2041 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
2042 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
2043 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
2044 i40e_flush(hw);
2045
2046 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
2047 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
2048 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
2049 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
2050 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
2051 vf = &pf->vf[vf_id];
2052 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
2053 if (reg & BIT(bit_idx)) {
2054 /* clear the bit in GLGEN_VFLRSTAT */
2055 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
2056
2057 if (!test_bit(__I40E_DOWN, &pf->state))
2058 i40e_reset_vf(vf, true);
2059 }
2060 }
2061
2062 return 0;
2063 }
2064
2065 /**
2066 * i40e_ndo_set_vf_mac
2067 * @netdev: network interface device structure
2068 * @vf_id: VF identifier
2069 * @mac: mac address
2070 *
2071 * program VF mac address
2072 **/
2073 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
2074 {
2075 struct i40e_netdev_priv *np = netdev_priv(netdev);
2076 struct i40e_vsi *vsi = np->vsi;
2077 struct i40e_pf *pf = vsi->back;
2078 struct i40e_mac_filter *f;
2079 struct i40e_vf *vf;
2080 int ret = 0;
2081
2082 /* validate the request */
2083 if (vf_id >= pf->num_alloc_vfs) {
2084 dev_err(&pf->pdev->dev,
2085 "Invalid VF Identifier %d\n", vf_id);
2086 ret = -EINVAL;
2087 goto error_param;
2088 }
2089
2090 vf = &(pf->vf[vf_id]);
2091 vsi = pf->vsi[vf->lan_vsi_idx];
2092 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2093 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2094 vf_id);
2095 ret = -EAGAIN;
2096 goto error_param;
2097 }
2098
2099 if (is_multicast_ether_addr(mac)) {
2100 dev_err(&pf->pdev->dev,
2101 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
2102 ret = -EINVAL;
2103 goto error_param;
2104 }
2105
2106 /* Lock once because below invoked function add/del_filter requires
2107 * mac_filter_list_lock to be held
2108 */
2109 spin_lock_bh(&vsi->mac_filter_list_lock);
2110
2111 /* delete the temporary mac address */
2112 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
2113 i40e_del_filter(vsi, vf->default_lan_addr.addr,
2114 vf->port_vlan_id ? vf->port_vlan_id : -1,
2115 true, false);
2116
2117 /* Delete all the filters for this VSI - we're going to kill it
2118 * anyway.
2119 */
2120 list_for_each_entry(f, &vsi->mac_filter_list, list)
2121 i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);
2122
2123 spin_unlock_bh(&vsi->mac_filter_list_lock);
2124
2125 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2126 /* program mac filter */
2127 if (i40e_sync_vsi_filters(vsi)) {
2128 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2129 ret = -EIO;
2130 goto error_param;
2131 }
2132 ether_addr_copy(vf->default_lan_addr.addr, mac);
2133 vf->pf_set_mac = true;
2134 /* Force the VF driver stop so it has to reload with new MAC address */
2135 i40e_vc_disable_vf(pf, vf);
2136 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2137
2138 error_param:
2139 return ret;
2140 }
2141
2142 /**
2143 * i40e_ndo_set_vf_port_vlan
2144 * @netdev: network interface device structure
2145 * @vf_id: VF identifier
2146 * @vlan_id: mac address
2147 * @qos: priority setting
2148 *
2149 * program VF vlan id and/or qos
2150 **/
2151 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2152 int vf_id, u16 vlan_id, u8 qos)
2153 {
2154 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
2155 struct i40e_netdev_priv *np = netdev_priv(netdev);
2156 struct i40e_pf *pf = np->vsi->back;
2157 bool is_vsi_in_vlan = false;
2158 struct i40e_vsi *vsi;
2159 struct i40e_vf *vf;
2160 int ret = 0;
2161
2162 /* validate the request */
2163 if (vf_id >= pf->num_alloc_vfs) {
2164 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2165 ret = -EINVAL;
2166 goto error_pvid;
2167 }
2168
2169 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2170 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2171 ret = -EINVAL;
2172 goto error_pvid;
2173 }
2174
2175 vf = &(pf->vf[vf_id]);
2176 vsi = pf->vsi[vf->lan_vsi_idx];
2177 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2178 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2179 vf_id);
2180 ret = -EAGAIN;
2181 goto error_pvid;
2182 }
2183
2184 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
2185 /* duplicate request, so just return success */
2186 goto error_pvid;
2187
2188 spin_lock_bh(&vsi->mac_filter_list_lock);
2189 is_vsi_in_vlan = i40e_is_vsi_in_vlan(vsi);
2190 spin_unlock_bh(&vsi->mac_filter_list_lock);
2191
2192 if (le16_to_cpu(vsi->info.pvid) == 0 && is_vsi_in_vlan) {
2193 dev_err(&pf->pdev->dev,
2194 "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",
2195 vf_id);
2196 /* Administrator Error - knock the VF offline until he does
2197 * the right thing by reconfiguring his network correctly
2198 * and then reloading the VF driver.
2199 */
2200 i40e_vc_disable_vf(pf, vf);
2201 }
2202
2203 /* Check for condition where there was already a port VLAN ID
2204 * filter set and now it is being deleted by setting it to zero.
2205 * Additionally check for the condition where there was a port
2206 * VLAN but now there is a new and different port VLAN being set.
2207 * Before deleting all the old VLAN filters we must add new ones
2208 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2209 * MAC addresses deleted.
2210 */
2211 if ((!(vlan_id || qos) ||
2212 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
2213 vsi->info.pvid)
2214 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
2215
2216 if (vsi->info.pvid) {
2217 /* kill old VLAN */
2218 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2219 VLAN_VID_MASK));
2220 if (ret) {
2221 dev_info(&vsi->back->pdev->dev,
2222 "remove VLAN failed, ret=%d, aq_err=%d\n",
2223 ret, pf->hw.aq.asq_last_status);
2224 }
2225 }
2226 if (vlan_id || qos)
2227 ret = i40e_vsi_add_pvid(vsi, vlanprio);
2228 else
2229 i40e_vsi_remove_pvid(vsi);
2230
2231 if (vlan_id) {
2232 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2233 vlan_id, qos, vf_id);
2234
2235 /* add new VLAN filter */
2236 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2237 if (ret) {
2238 dev_info(&vsi->back->pdev->dev,
2239 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2240 vsi->back->hw.aq.asq_last_status);
2241 goto error_pvid;
2242 }
2243 /* Kill non-vlan MAC filters - ignore error return since
2244 * there might not be any non-vlan MAC filters.
2245 */
2246 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
2247 }
2248
2249 if (ret) {
2250 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2251 goto error_pvid;
2252 }
2253 /* The Port VLAN needs to be saved across resets the same as the
2254 * default LAN MAC address.
2255 */
2256 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2257 ret = 0;
2258
2259 error_pvid:
2260 return ret;
2261 }
2262
2263 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
2264 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
2265 /**
2266 * i40e_ndo_set_vf_bw
2267 * @netdev: network interface device structure
2268 * @vf_id: VF identifier
2269 * @tx_rate: Tx rate
2270 *
2271 * configure VF Tx rate
2272 **/
2273 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
2274 int max_tx_rate)
2275 {
2276 struct i40e_netdev_priv *np = netdev_priv(netdev);
2277 struct i40e_pf *pf = np->vsi->back;
2278 struct i40e_vsi *vsi;
2279 struct i40e_vf *vf;
2280 int speed = 0;
2281 int ret = 0;
2282
2283 /* validate the request */
2284 if (vf_id >= pf->num_alloc_vfs) {
2285 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
2286 ret = -EINVAL;
2287 goto error;
2288 }
2289
2290 if (min_tx_rate) {
2291 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
2292 min_tx_rate, vf_id);
2293 return -EINVAL;
2294 }
2295
2296 vf = &(pf->vf[vf_id]);
2297 vsi = pf->vsi[vf->lan_vsi_idx];
2298 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2299 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2300 vf_id);
2301 ret = -EAGAIN;
2302 goto error;
2303 }
2304
2305 switch (pf->hw.phy.link_info.link_speed) {
2306 case I40E_LINK_SPEED_40GB:
2307 speed = 40000;
2308 break;
2309 case I40E_LINK_SPEED_10GB:
2310 speed = 10000;
2311 break;
2312 case I40E_LINK_SPEED_1GB:
2313 speed = 1000;
2314 break;
2315 default:
2316 break;
2317 }
2318
2319 if (max_tx_rate > speed) {
2320 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.",
2321 max_tx_rate, vf->vf_id);
2322 ret = -EINVAL;
2323 goto error;
2324 }
2325
2326 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
2327 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
2328 max_tx_rate = 50;
2329 }
2330
2331 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
2332 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
2333 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
2334 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
2335 if (ret) {
2336 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
2337 ret);
2338 ret = -EIO;
2339 goto error;
2340 }
2341 vf->tx_rate = max_tx_rate;
2342 error:
2343 return ret;
2344 }
2345
2346 /**
2347 * i40e_ndo_get_vf_config
2348 * @netdev: network interface device structure
2349 * @vf_id: VF identifier
2350 * @ivi: VF configuration structure
2351 *
2352 * return VF configuration
2353 **/
2354 int i40e_ndo_get_vf_config(struct net_device *netdev,
2355 int vf_id, struct ifla_vf_info *ivi)
2356 {
2357 struct i40e_netdev_priv *np = netdev_priv(netdev);
2358 struct i40e_vsi *vsi = np->vsi;
2359 struct i40e_pf *pf = vsi->back;
2360 struct i40e_vf *vf;
2361 int ret = 0;
2362
2363 /* validate the request */
2364 if (vf_id >= pf->num_alloc_vfs) {
2365 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2366 ret = -EINVAL;
2367 goto error_param;
2368 }
2369
2370 vf = &(pf->vf[vf_id]);
2371 /* first vsi is always the LAN vsi */
2372 vsi = pf->vsi[vf->lan_vsi_idx];
2373 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2374 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2375 vf_id);
2376 ret = -EAGAIN;
2377 goto error_param;
2378 }
2379
2380 ivi->vf = vf_id;
2381
2382 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
2383
2384 ivi->max_tx_rate = vf->tx_rate;
2385 ivi->min_tx_rate = 0;
2386 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2387 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2388 I40E_VLAN_PRIORITY_SHIFT;
2389 if (vf->link_forced == false)
2390 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
2391 else if (vf->link_up == true)
2392 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
2393 else
2394 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
2395 ivi->spoofchk = vf->spoofchk;
2396 ret = 0;
2397
2398 error_param:
2399 return ret;
2400 }
2401
2402 /**
2403 * i40e_ndo_set_vf_link_state
2404 * @netdev: network interface device structure
2405 * @vf_id: VF identifier
2406 * @link: required link state
2407 *
2408 * Set the link state of a specified VF, regardless of physical link state
2409 **/
2410 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
2411 {
2412 struct i40e_netdev_priv *np = netdev_priv(netdev);
2413 struct i40e_pf *pf = np->vsi->back;
2414 struct i40e_virtchnl_pf_event pfe;
2415 struct i40e_hw *hw = &pf->hw;
2416 struct i40e_vf *vf;
2417 int abs_vf_id;
2418 int ret = 0;
2419
2420 /* validate the request */
2421 if (vf_id >= pf->num_alloc_vfs) {
2422 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2423 ret = -EINVAL;
2424 goto error_out;
2425 }
2426
2427 vf = &pf->vf[vf_id];
2428 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
2429
2430 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
2431 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
2432
2433 switch (link) {
2434 case IFLA_VF_LINK_STATE_AUTO:
2435 vf->link_forced = false;
2436 pfe.event_data.link_event.link_status =
2437 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
2438 pfe.event_data.link_event.link_speed =
2439 pf->hw.phy.link_info.link_speed;
2440 break;
2441 case IFLA_VF_LINK_STATE_ENABLE:
2442 vf->link_forced = true;
2443 vf->link_up = true;
2444 pfe.event_data.link_event.link_status = true;
2445 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
2446 break;
2447 case IFLA_VF_LINK_STATE_DISABLE:
2448 vf->link_forced = true;
2449 vf->link_up = false;
2450 pfe.event_data.link_event.link_status = false;
2451 pfe.event_data.link_event.link_speed = 0;
2452 break;
2453 default:
2454 ret = -EINVAL;
2455 goto error_out;
2456 }
2457 /* Notify the VF of its new link state */
2458 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
2459 0, (u8 *)&pfe, sizeof(pfe), NULL);
2460
2461 error_out:
2462 return ret;
2463 }
2464
2465 /**
2466 * i40e_ndo_set_vf_spoofchk
2467 * @netdev: network interface device structure
2468 * @vf_id: VF identifier
2469 * @enable: flag to enable or disable feature
2470 *
2471 * Enable or disable VF spoof checking
2472 **/
2473 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
2474 {
2475 struct i40e_netdev_priv *np = netdev_priv(netdev);
2476 struct i40e_vsi *vsi = np->vsi;
2477 struct i40e_pf *pf = vsi->back;
2478 struct i40e_vsi_context ctxt;
2479 struct i40e_hw *hw = &pf->hw;
2480 struct i40e_vf *vf;
2481 int ret = 0;
2482
2483 /* validate the request */
2484 if (vf_id >= pf->num_alloc_vfs) {
2485 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2486 ret = -EINVAL;
2487 goto out;
2488 }
2489
2490 vf = &(pf->vf[vf_id]);
2491 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2492 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2493 vf_id);
2494 ret = -EAGAIN;
2495 goto out;
2496 }
2497
2498 if (enable == vf->spoofchk)
2499 goto out;
2500
2501 vf->spoofchk = enable;
2502 memset(&ctxt, 0, sizeof(ctxt));
2503 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
2504 ctxt.pf_num = pf->hw.pf_id;
2505 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
2506 if (enable)
2507 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
2508 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
2509 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
2510 if (ret) {
2511 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
2512 ret);
2513 ret = -EIO;
2514 }
2515 out:
2516 return ret;
2517 }
Linux kernel - Deliverables
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