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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 - 2016 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 = I40E_RX_DTYPE_HEADER_SPLIT;
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 i40e_write_rx_ctl(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 i40e_write_rx_ctl(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id),
634 reg);
635 }
636
637 i40e_flush(hw);
638 }
639
640 /**
641 * i40e_disable_vf_mappings
642 * @vf: pointer to the VF info
643 *
644 * disable VF mappings
645 **/
646 static void i40e_disable_vf_mappings(struct i40e_vf *vf)
647 {
648 struct i40e_pf *pf = vf->pf;
649 struct i40e_hw *hw = &pf->hw;
650 int i;
651
652 /* disable qp mappings */
653 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
654 for (i = 0; i < I40E_MAX_VSI_QP; i++)
655 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
656 I40E_QUEUE_END_OF_LIST);
657 i40e_flush(hw);
658 }
659
660 /**
661 * i40e_free_vf_res
662 * @vf: pointer to the VF info
663 *
664 * free VF resources
665 **/
666 static void i40e_free_vf_res(struct i40e_vf *vf)
667 {
668 struct i40e_pf *pf = vf->pf;
669 struct i40e_hw *hw = &pf->hw;
670 u32 reg_idx, reg;
671 int i, msix_vf;
672
673 /* free vsi & disconnect it from the parent uplink */
674 if (vf->lan_vsi_idx) {
675 i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
676 vf->lan_vsi_idx = 0;
677 vf->lan_vsi_id = 0;
678 }
679 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
680
681 /* disable interrupts so the VF starts in a known state */
682 for (i = 0; i < msix_vf; i++) {
683 /* format is same for both registers */
684 if (0 == i)
685 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
686 else
687 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
688 (vf->vf_id))
689 + (i - 1));
690 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
691 i40e_flush(hw);
692 }
693
694 /* clear the irq settings */
695 for (i = 0; i < msix_vf; i++) {
696 /* format is same for both registers */
697 if (0 == i)
698 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
699 else
700 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
701 (vf->vf_id))
702 + (i - 1));
703 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
704 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
705 wr32(hw, reg_idx, reg);
706 i40e_flush(hw);
707 }
708 /* reset some of the state varibles keeping
709 * track of the resources
710 */
711 vf->num_queue_pairs = 0;
712 vf->vf_states = 0;
713 clear_bit(I40E_VF_STAT_INIT, &vf->vf_states);
714 }
715
716 /**
717 * i40e_alloc_vf_res
718 * @vf: pointer to the VF info
719 *
720 * allocate VF resources
721 **/
722 static int i40e_alloc_vf_res(struct i40e_vf *vf)
723 {
724 struct i40e_pf *pf = vf->pf;
725 int total_queue_pairs = 0;
726 int ret;
727
728 /* allocate hw vsi context & associated resources */
729 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
730 if (ret)
731 goto error_alloc;
732 total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
733 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
734
735 /* store the total qps number for the runtime
736 * VF req validation
737 */
738 vf->num_queue_pairs = total_queue_pairs;
739
740 /* VF is now completely initialized */
741 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
742
743 error_alloc:
744 if (ret)
745 i40e_free_vf_res(vf);
746
747 return ret;
748 }
749
750 #define VF_DEVICE_STATUS 0xAA
751 #define VF_TRANS_PENDING_MASK 0x20
752 /**
753 * i40e_quiesce_vf_pci
754 * @vf: pointer to the VF structure
755 *
756 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
757 * if the transactions never clear.
758 **/
759 static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
760 {
761 struct i40e_pf *pf = vf->pf;
762 struct i40e_hw *hw = &pf->hw;
763 int vf_abs_id, i;
764 u32 reg;
765
766 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
767
768 wr32(hw, I40E_PF_PCI_CIAA,
769 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
770 for (i = 0; i < 100; i++) {
771 reg = rd32(hw, I40E_PF_PCI_CIAD);
772 if ((reg & VF_TRANS_PENDING_MASK) == 0)
773 return 0;
774 udelay(1);
775 }
776 return -EIO;
777 }
778
779 /**
780 * i40e_reset_vf
781 * @vf: pointer to the VF structure
782 * @flr: VFLR was issued or not
783 *
784 * reset the VF
785 **/
786 void i40e_reset_vf(struct i40e_vf *vf, bool flr)
787 {
788 struct i40e_pf *pf = vf->pf;
789 struct i40e_hw *hw = &pf->hw;
790 bool rsd = false;
791 int i;
792 u32 reg;
793
794 if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
795 return;
796
797 /* warn the VF */
798 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
799
800 /* In the case of a VFLR, the HW has already reset the VF and we
801 * just need to clean up, so don't hit the VFRTRIG register.
802 */
803 if (!flr) {
804 /* reset VF using VPGEN_VFRTRIG reg */
805 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
806 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
807 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
808 i40e_flush(hw);
809 }
810
811 if (i40e_quiesce_vf_pci(vf))
812 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
813 vf->vf_id);
814
815 /* poll VPGEN_VFRSTAT reg to make sure
816 * that reset is complete
817 */
818 for (i = 0; i < 10; i++) {
819 /* VF reset requires driver to first reset the VF and then
820 * poll the status register to make sure that the reset
821 * completed successfully. Due to internal HW FIFO flushes,
822 * we must wait 10ms before the register will be valid.
823 */
824 usleep_range(10000, 20000);
825 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
826 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
827 rsd = true;
828 break;
829 }
830 }
831
832 if (flr)
833 usleep_range(10000, 20000);
834
835 if (!rsd)
836 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
837 vf->vf_id);
838 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
839 /* clear the reset bit in the VPGEN_VFRTRIG reg */
840 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
841 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
842 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
843
844 /* On initial reset, we won't have any queues */
845 if (vf->lan_vsi_idx == 0)
846 goto complete_reset;
847
848 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false);
849 complete_reset:
850 /* reallocate VF resources to reset the VSI state */
851 i40e_free_vf_res(vf);
852 if (!i40e_alloc_vf_res(vf)) {
853 i40e_enable_vf_mappings(vf);
854 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
855 clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
856 }
857 /* tell the VF the reset is done */
858 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
859 i40e_flush(hw);
860 clear_bit(__I40E_VF_DISABLE, &pf->state);
861 }
862
863 /**
864 * i40e_free_vfs
865 * @pf: pointer to the PF structure
866 *
867 * free VF resources
868 **/
869 void i40e_free_vfs(struct i40e_pf *pf)
870 {
871 struct i40e_hw *hw = &pf->hw;
872 u32 reg_idx, bit_idx;
873 int i, tmp, vf_id;
874
875 if (!pf->vf)
876 return;
877 while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
878 usleep_range(1000, 2000);
879
880 for (i = 0; i < pf->num_alloc_vfs; i++)
881 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
882 i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
883 false);
884
885 for (i = 0; i < pf->num_alloc_vfs; i++)
886 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
887 i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
888 false);
889
890 /* Disable IOV before freeing resources. This lets any VF drivers
891 * running in the host get themselves cleaned up before we yank
892 * the carpet out from underneath their feet.
893 */
894 if (!pci_vfs_assigned(pf->pdev))
895 pci_disable_sriov(pf->pdev);
896 else
897 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
898
899 msleep(20); /* let any messages in transit get finished up */
900
901 /* free up VF resources */
902 tmp = pf->num_alloc_vfs;
903 pf->num_alloc_vfs = 0;
904 for (i = 0; i < tmp; i++) {
905 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
906 i40e_free_vf_res(&pf->vf[i]);
907 /* disable qp mappings */
908 i40e_disable_vf_mappings(&pf->vf[i]);
909 }
910
911 kfree(pf->vf);
912 pf->vf = NULL;
913
914 /* This check is for when the driver is unloaded while VFs are
915 * assigned. Setting the number of VFs to 0 through sysfs is caught
916 * before this function ever gets called.
917 */
918 if (!pci_vfs_assigned(pf->pdev)) {
919 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
920 * work correctly when SR-IOV gets re-enabled.
921 */
922 for (vf_id = 0; vf_id < tmp; vf_id++) {
923 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
924 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
925 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
926 }
927 }
928 clear_bit(__I40E_VF_DISABLE, &pf->state);
929 }
930
931 #ifdef CONFIG_PCI_IOV
932 /**
933 * i40e_alloc_vfs
934 * @pf: pointer to the PF structure
935 * @num_alloc_vfs: number of VFs to allocate
936 *
937 * allocate VF resources
938 **/
939 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
940 {
941 struct i40e_vf *vfs;
942 int i, ret = 0;
943
944 /* Disable interrupt 0 so we don't try to handle the VFLR. */
945 i40e_irq_dynamic_disable_icr0(pf);
946
947 /* Check to see if we're just allocating resources for extant VFs */
948 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
949 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
950 if (ret) {
951 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
952 pf->num_alloc_vfs = 0;
953 goto err_iov;
954 }
955 }
956 /* allocate memory */
957 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
958 if (!vfs) {
959 ret = -ENOMEM;
960 goto err_alloc;
961 }
962 pf->vf = vfs;
963
964 /* apply default profile */
965 for (i = 0; i < num_alloc_vfs; i++) {
966 vfs[i].pf = pf;
967 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
968 vfs[i].vf_id = i;
969
970 /* assign default capabilities */
971 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
972 vfs[i].spoofchk = true;
973 /* VF resources get allocated during reset */
974 i40e_reset_vf(&vfs[i], false);
975
976 }
977 pf->num_alloc_vfs = num_alloc_vfs;
978
979 err_alloc:
980 if (ret)
981 i40e_free_vfs(pf);
982 err_iov:
983 /* Re-enable interrupt 0. */
984 i40e_irq_dynamic_enable_icr0(pf, false);
985 return ret;
986 }
987
988 #endif
989 /**
990 * i40e_pci_sriov_enable
991 * @pdev: pointer to a pci_dev structure
992 * @num_vfs: number of VFs to allocate
993 *
994 * Enable or change the number of VFs
995 **/
996 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
997 {
998 #ifdef CONFIG_PCI_IOV
999 struct i40e_pf *pf = pci_get_drvdata(pdev);
1000 int pre_existing_vfs = pci_num_vf(pdev);
1001 int err = 0;
1002
1003 if (test_bit(__I40E_TESTING, &pf->state)) {
1004 dev_warn(&pdev->dev,
1005 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1006 err = -EPERM;
1007 goto err_out;
1008 }
1009
1010 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1011 i40e_free_vfs(pf);
1012 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1013 goto out;
1014
1015 if (num_vfs > pf->num_req_vfs) {
1016 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1017 num_vfs, pf->num_req_vfs);
1018 err = -EPERM;
1019 goto err_out;
1020 }
1021
1022 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1023 err = i40e_alloc_vfs(pf, num_vfs);
1024 if (err) {
1025 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1026 goto err_out;
1027 }
1028
1029 out:
1030 return num_vfs;
1031
1032 err_out:
1033 return err;
1034 #endif
1035 return 0;
1036 }
1037
1038 /**
1039 * i40e_pci_sriov_configure
1040 * @pdev: pointer to a pci_dev structure
1041 * @num_vfs: number of VFs to allocate
1042 *
1043 * Enable or change the number of VFs. Called when the user updates the number
1044 * of VFs in sysfs.
1045 **/
1046 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1047 {
1048 struct i40e_pf *pf = pci_get_drvdata(pdev);
1049
1050 if (num_vfs) {
1051 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1052 pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1053 i40e_do_reset_safe(pf,
1054 BIT_ULL(__I40E_PF_RESET_REQUESTED));
1055 }
1056 return i40e_pci_sriov_enable(pdev, num_vfs);
1057 }
1058
1059 if (!pci_vfs_assigned(pf->pdev)) {
1060 i40e_free_vfs(pf);
1061 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1062 i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
1063 } else {
1064 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1065 return -EINVAL;
1066 }
1067 return 0;
1068 }
1069
1070 /***********************virtual channel routines******************/
1071
1072 /**
1073 * i40e_vc_send_msg_to_vf
1074 * @vf: pointer to the VF info
1075 * @v_opcode: virtual channel opcode
1076 * @v_retval: virtual channel return value
1077 * @msg: pointer to the msg buffer
1078 * @msglen: msg length
1079 *
1080 * send msg to VF
1081 **/
1082 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1083 u32 v_retval, u8 *msg, u16 msglen)
1084 {
1085 struct i40e_pf *pf;
1086 struct i40e_hw *hw;
1087 int abs_vf_id;
1088 i40e_status aq_ret;
1089
1090 /* validate the request */
1091 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1092 return -EINVAL;
1093
1094 pf = vf->pf;
1095 hw = &pf->hw;
1096 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1097
1098 /* single place to detect unsuccessful return values */
1099 if (v_retval) {
1100 vf->num_invalid_msgs++;
1101 dev_err(&pf->pdev->dev, "VF %d failed opcode %d, error: %d\n",
1102 vf->vf_id, v_opcode, v_retval);
1103 if (vf->num_invalid_msgs >
1104 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1105 dev_err(&pf->pdev->dev,
1106 "Number of invalid messages exceeded for VF %d\n",
1107 vf->vf_id);
1108 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1109 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1110 }
1111 } else {
1112 vf->num_valid_msgs++;
1113 /* reset the invalid counter, if a valid message is received. */
1114 vf->num_invalid_msgs = 0;
1115 }
1116
1117 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
1118 msg, msglen, NULL);
1119 if (aq_ret) {
1120 dev_err(&pf->pdev->dev,
1121 "Unable to send the message to VF %d aq_err %d\n",
1122 vf->vf_id, pf->hw.aq.asq_last_status);
1123 return -EIO;
1124 }
1125
1126 return 0;
1127 }
1128
1129 /**
1130 * i40e_vc_send_resp_to_vf
1131 * @vf: pointer to the VF info
1132 * @opcode: operation code
1133 * @retval: return value
1134 *
1135 * send resp msg to VF
1136 **/
1137 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1138 enum i40e_virtchnl_ops opcode,
1139 i40e_status retval)
1140 {
1141 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1142 }
1143
1144 /**
1145 * i40e_vc_get_version_msg
1146 * @vf: pointer to the VF info
1147 *
1148 * called from the VF to request the API version used by the PF
1149 **/
1150 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1151 {
1152 struct i40e_virtchnl_version_info info = {
1153 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1154 };
1155
1156 vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg;
1157 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1158 if (VF_IS_V10(vf))
1159 info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1160 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1161 I40E_SUCCESS, (u8 *)&info,
1162 sizeof(struct
1163 i40e_virtchnl_version_info));
1164 }
1165
1166 /**
1167 * i40e_vc_get_vf_resources_msg
1168 * @vf: pointer to the VF info
1169 * @msg: pointer to the msg buffer
1170 * @msglen: msg length
1171 *
1172 * called from the VF to request its resources
1173 **/
1174 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1175 {
1176 struct i40e_virtchnl_vf_resource *vfres = NULL;
1177 struct i40e_pf *pf = vf->pf;
1178 i40e_status aq_ret = 0;
1179 struct i40e_vsi *vsi;
1180 int i = 0, len = 0;
1181 int num_vsis = 1;
1182 int ret;
1183
1184 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1185 aq_ret = I40E_ERR_PARAM;
1186 goto err;
1187 }
1188
1189 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1190 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1191
1192 vfres = kzalloc(len, GFP_KERNEL);
1193 if (!vfres) {
1194 aq_ret = I40E_ERR_NO_MEMORY;
1195 len = 0;
1196 goto err;
1197 }
1198 if (VF_IS_V11(vf))
1199 vf->driver_caps = *(u32 *)msg;
1200 else
1201 vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
1202 I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
1203 I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1204
1205 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1206 vsi = pf->vsi[vf->lan_vsi_idx];
1207 if (!vsi->info.pvid)
1208 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1209 if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) {
1210 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ)
1211 vfres->vf_offload_flags |=
1212 I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1213 } else {
1214 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG;
1215 }
1216
1217 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
1218 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
1219 vfres->vf_offload_flags |=
1220 I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
1221 }
1222
1223 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING)
1224 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1225
1226 if (pf->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) {
1227 if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1228 vfres->vf_offload_flags |=
1229 I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
1230 }
1231
1232 vfres->num_vsis = num_vsis;
1233 vfres->num_queue_pairs = vf->num_queue_pairs;
1234 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1235 if (vf->lan_vsi_idx) {
1236 vfres->vsi_res[i].vsi_id = vf->lan_vsi_id;
1237 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1238 vfres->vsi_res[i].num_queue_pairs = vsi->alloc_queue_pairs;
1239 /* VFs only use TC 0 */
1240 vfres->vsi_res[i].qset_handle
1241 = le16_to_cpu(vsi->info.qs_handle[0]);
1242 ether_addr_copy(vfres->vsi_res[i].default_mac_addr,
1243 vf->default_lan_addr.addr);
1244 i++;
1245 }
1246 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1247
1248 err:
1249 /* send the response back to the VF */
1250 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1251 aq_ret, (u8 *)vfres, len);
1252
1253 kfree(vfres);
1254 return ret;
1255 }
1256
1257 /**
1258 * i40e_vc_reset_vf_msg
1259 * @vf: pointer to the VF info
1260 * @msg: pointer to the msg buffer
1261 * @msglen: msg length
1262 *
1263 * called from the VF to reset itself,
1264 * unlike other virtchnl messages, PF driver
1265 * doesn't send the response back to the VF
1266 **/
1267 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1268 {
1269 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1270 i40e_reset_vf(vf, false);
1271 }
1272
1273 /**
1274 * i40e_vc_config_promiscuous_mode_msg
1275 * @vf: pointer to the VF info
1276 * @msg: pointer to the msg buffer
1277 * @msglen: msg length
1278 *
1279 * called from the VF to configure the promiscuous mode of
1280 * VF vsis
1281 **/
1282 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1283 u8 *msg, u16 msglen)
1284 {
1285 struct i40e_virtchnl_promisc_info *info =
1286 (struct i40e_virtchnl_promisc_info *)msg;
1287 struct i40e_pf *pf = vf->pf;
1288 struct i40e_hw *hw = &pf->hw;
1289 struct i40e_vsi *vsi;
1290 bool allmulti = false;
1291 i40e_status aq_ret;
1292
1293 vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
1294 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1295 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1296 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1297 (vsi->type != I40E_VSI_FCOE)) {
1298 aq_ret = I40E_ERR_PARAM;
1299 goto error_param;
1300 }
1301 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1302 allmulti = true;
1303 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
1304 allmulti, NULL);
1305
1306 error_param:
1307 /* send the response to the VF */
1308 return i40e_vc_send_resp_to_vf(vf,
1309 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1310 aq_ret);
1311 }
1312
1313 /**
1314 * i40e_vc_config_queues_msg
1315 * @vf: pointer to the VF info
1316 * @msg: pointer to the msg buffer
1317 * @msglen: msg length
1318 *
1319 * called from the VF to configure the rx/tx
1320 * queues
1321 **/
1322 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1323 {
1324 struct i40e_virtchnl_vsi_queue_config_info *qci =
1325 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1326 struct i40e_virtchnl_queue_pair_info *qpi;
1327 struct i40e_pf *pf = vf->pf;
1328 u16 vsi_id, vsi_queue_id;
1329 i40e_status aq_ret = 0;
1330 int i;
1331
1332 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1333 aq_ret = I40E_ERR_PARAM;
1334 goto error_param;
1335 }
1336
1337 vsi_id = qci->vsi_id;
1338 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1339 aq_ret = I40E_ERR_PARAM;
1340 goto error_param;
1341 }
1342 for (i = 0; i < qci->num_queue_pairs; i++) {
1343 qpi = &qci->qpair[i];
1344 vsi_queue_id = qpi->txq.queue_id;
1345 if ((qpi->txq.vsi_id != vsi_id) ||
1346 (qpi->rxq.vsi_id != vsi_id) ||
1347 (qpi->rxq.queue_id != vsi_queue_id) ||
1348 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1349 aq_ret = I40E_ERR_PARAM;
1350 goto error_param;
1351 }
1352
1353 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1354 &qpi->rxq) ||
1355 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1356 &qpi->txq)) {
1357 aq_ret = I40E_ERR_PARAM;
1358 goto error_param;
1359 }
1360 }
1361 /* set vsi num_queue_pairs in use to num configured by VF */
1362 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;
1363
1364 error_param:
1365 /* send the response to the VF */
1366 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1367 aq_ret);
1368 }
1369
1370 /**
1371 * i40e_vc_config_irq_map_msg
1372 * @vf: pointer to the VF info
1373 * @msg: pointer to the msg buffer
1374 * @msglen: msg length
1375 *
1376 * called from the VF to configure the irq to
1377 * queue map
1378 **/
1379 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1380 {
1381 struct i40e_virtchnl_irq_map_info *irqmap_info =
1382 (struct i40e_virtchnl_irq_map_info *)msg;
1383 struct i40e_virtchnl_vector_map *map;
1384 u16 vsi_id, vsi_queue_id, vector_id;
1385 i40e_status aq_ret = 0;
1386 unsigned long tempmap;
1387 int i;
1388
1389 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1390 aq_ret = I40E_ERR_PARAM;
1391 goto error_param;
1392 }
1393
1394 for (i = 0; i < irqmap_info->num_vectors; i++) {
1395 map = &irqmap_info->vecmap[i];
1396
1397 vector_id = map->vector_id;
1398 vsi_id = map->vsi_id;
1399 /* validate msg params */
1400 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1401 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1402 aq_ret = I40E_ERR_PARAM;
1403 goto error_param;
1404 }
1405
1406 /* lookout for the invalid queue index */
1407 tempmap = map->rxq_map;
1408 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1409 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1410 vsi_queue_id)) {
1411 aq_ret = I40E_ERR_PARAM;
1412 goto error_param;
1413 }
1414 }
1415
1416 tempmap = map->txq_map;
1417 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
1418 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1419 vsi_queue_id)) {
1420 aq_ret = I40E_ERR_PARAM;
1421 goto error_param;
1422 }
1423 }
1424
1425 i40e_config_irq_link_list(vf, vsi_id, map);
1426 }
1427 error_param:
1428 /* send the response to the VF */
1429 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1430 aq_ret);
1431 }
1432
1433 /**
1434 * i40e_vc_enable_queues_msg
1435 * @vf: pointer to the VF info
1436 * @msg: pointer to the msg buffer
1437 * @msglen: msg length
1438 *
1439 * called from the VF to enable all or specific queue(s)
1440 **/
1441 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1442 {
1443 struct i40e_virtchnl_queue_select *vqs =
1444 (struct i40e_virtchnl_queue_select *)msg;
1445 struct i40e_pf *pf = vf->pf;
1446 u16 vsi_id = vqs->vsi_id;
1447 i40e_status aq_ret = 0;
1448
1449 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1450 aq_ret = I40E_ERR_PARAM;
1451 goto error_param;
1452 }
1453
1454 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1455 aq_ret = I40E_ERR_PARAM;
1456 goto error_param;
1457 }
1458
1459 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1460 aq_ret = I40E_ERR_PARAM;
1461 goto error_param;
1462 }
1463
1464 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true))
1465 aq_ret = I40E_ERR_TIMEOUT;
1466 error_param:
1467 /* send the response to the VF */
1468 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1469 aq_ret);
1470 }
1471
1472 /**
1473 * i40e_vc_disable_queues_msg
1474 * @vf: pointer to the VF info
1475 * @msg: pointer to the msg buffer
1476 * @msglen: msg length
1477 *
1478 * called from the VF to disable all or specific
1479 * queue(s)
1480 **/
1481 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1482 {
1483 struct i40e_virtchnl_queue_select *vqs =
1484 (struct i40e_virtchnl_queue_select *)msg;
1485 struct i40e_pf *pf = vf->pf;
1486 i40e_status aq_ret = 0;
1487
1488 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1489 aq_ret = I40E_ERR_PARAM;
1490 goto error_param;
1491 }
1492
1493 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1494 aq_ret = I40E_ERR_PARAM;
1495 goto error_param;
1496 }
1497
1498 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1499 aq_ret = I40E_ERR_PARAM;
1500 goto error_param;
1501 }
1502
1503 if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false))
1504 aq_ret = I40E_ERR_TIMEOUT;
1505
1506 error_param:
1507 /* send the response to the VF */
1508 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1509 aq_ret);
1510 }
1511
1512 /**
1513 * i40e_vc_get_stats_msg
1514 * @vf: pointer to the VF info
1515 * @msg: pointer to the msg buffer
1516 * @msglen: msg length
1517 *
1518 * called from the VF to get vsi stats
1519 **/
1520 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1521 {
1522 struct i40e_virtchnl_queue_select *vqs =
1523 (struct i40e_virtchnl_queue_select *)msg;
1524 struct i40e_pf *pf = vf->pf;
1525 struct i40e_eth_stats stats;
1526 i40e_status aq_ret = 0;
1527 struct i40e_vsi *vsi;
1528
1529 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1530
1531 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1532 aq_ret = I40E_ERR_PARAM;
1533 goto error_param;
1534 }
1535
1536 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1537 aq_ret = I40E_ERR_PARAM;
1538 goto error_param;
1539 }
1540
1541 vsi = pf->vsi[vf->lan_vsi_idx];
1542 if (!vsi) {
1543 aq_ret = I40E_ERR_PARAM;
1544 goto error_param;
1545 }
1546 i40e_update_eth_stats(vsi);
1547 stats = vsi->eth_stats;
1548
1549 error_param:
1550 /* send the response back to the VF */
1551 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1552 (u8 *)&stats, sizeof(stats));
1553 }
1554
1555 /**
1556 * i40e_check_vf_permission
1557 * @vf: pointer to the VF info
1558 * @macaddr: pointer to the MAC Address being checked
1559 *
1560 * Check if the VF has permission to add or delete unicast MAC address
1561 * filters and return error code -EPERM if not. Then check if the
1562 * address filter requested is broadcast or zero and if so return
1563 * an invalid MAC address error code.
1564 **/
1565 static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1566 {
1567 struct i40e_pf *pf = vf->pf;
1568 int ret = 0;
1569
1570 if (is_broadcast_ether_addr(macaddr) ||
1571 is_zero_ether_addr(macaddr)) {
1572 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1573 ret = I40E_ERR_INVALID_MAC_ADDR;
1574 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1575 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
1576 /* If the host VMM administrator has set the VF MAC address
1577 * administratively via the ndo_set_vf_mac command then deny
1578 * permission to the VF to add or delete unicast MAC addresses.
1579 * The VF may request to set the MAC address filter already
1580 * assigned to it so do not return an error in that case.
1581 */
1582 dev_err(&pf->pdev->dev,
1583 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
1584 ret = -EPERM;
1585 }
1586 return ret;
1587 }
1588
1589 /**
1590 * i40e_vc_add_mac_addr_msg
1591 * @vf: pointer to the VF info
1592 * @msg: pointer to the msg buffer
1593 * @msglen: msg length
1594 *
1595 * add guest mac address filter
1596 **/
1597 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1598 {
1599 struct i40e_virtchnl_ether_addr_list *al =
1600 (struct i40e_virtchnl_ether_addr_list *)msg;
1601 struct i40e_pf *pf = vf->pf;
1602 struct i40e_vsi *vsi = NULL;
1603 u16 vsi_id = al->vsi_id;
1604 i40e_status ret = 0;
1605 int i;
1606
1607 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1608 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1609 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1610 ret = I40E_ERR_PARAM;
1611 goto error_param;
1612 }
1613
1614 for (i = 0; i < al->num_elements; i++) {
1615 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1616 if (ret)
1617 goto error_param;
1618 }
1619 vsi = pf->vsi[vf->lan_vsi_idx];
1620
1621 /* Lock once, because all function inside for loop accesses VSI's
1622 * MAC filter list which needs to be protected using same lock.
1623 */
1624 spin_lock_bh(&vsi->mac_filter_list_lock);
1625
1626 /* add new addresses to the list */
1627 for (i = 0; i < al->num_elements; i++) {
1628 struct i40e_mac_filter *f;
1629
1630 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
1631 if (!f) {
1632 if (i40e_is_vsi_in_vlan(vsi))
1633 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1634 true, false);
1635 else
1636 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1637 true, false);
1638 }
1639
1640 if (!f) {
1641 dev_err(&pf->pdev->dev,
1642 "Unable to add MAC filter %pM for VF %d\n",
1643 al->list[i].addr, vf->vf_id);
1644 ret = I40E_ERR_PARAM;
1645 spin_unlock_bh(&vsi->mac_filter_list_lock);
1646 goto error_param;
1647 }
1648 }
1649 spin_unlock_bh(&vsi->mac_filter_list_lock);
1650
1651 /* program the updated filter list */
1652 ret = i40e_sync_vsi_filters(vsi);
1653 if (ret)
1654 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
1655 vf->vf_id, ret);
1656
1657 error_param:
1658 /* send the response to the VF */
1659 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
1660 ret);
1661 }
1662
1663 /**
1664 * i40e_vc_del_mac_addr_msg
1665 * @vf: pointer to the VF info
1666 * @msg: pointer to the msg buffer
1667 * @msglen: msg length
1668 *
1669 * remove guest mac address filter
1670 **/
1671 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1672 {
1673 struct i40e_virtchnl_ether_addr_list *al =
1674 (struct i40e_virtchnl_ether_addr_list *)msg;
1675 struct i40e_pf *pf = vf->pf;
1676 struct i40e_vsi *vsi = NULL;
1677 u16 vsi_id = al->vsi_id;
1678 i40e_status ret = 0;
1679 int i;
1680
1681 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1682 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1683 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1684 ret = I40E_ERR_PARAM;
1685 goto error_param;
1686 }
1687
1688 for (i = 0; i < al->num_elements; i++) {
1689 if (is_broadcast_ether_addr(al->list[i].addr) ||
1690 is_zero_ether_addr(al->list[i].addr)) {
1691 dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
1692 al->list[i].addr, vf->vf_id);
1693 ret = I40E_ERR_INVALID_MAC_ADDR;
1694 goto error_param;
1695 }
1696 }
1697 vsi = pf->vsi[vf->lan_vsi_idx];
1698
1699 spin_lock_bh(&vsi->mac_filter_list_lock);
1700 /* delete addresses from the list */
1701 for (i = 0; i < al->num_elements; i++)
1702 if (i40e_del_mac_all_vlan(vsi, al->list[i].addr, true, false)) {
1703 ret = I40E_ERR_INVALID_MAC_ADDR;
1704 spin_unlock_bh(&vsi->mac_filter_list_lock);
1705 goto error_param;
1706 }
1707
1708 spin_unlock_bh(&vsi->mac_filter_list_lock);
1709
1710 /* program the updated filter list */
1711 ret = i40e_sync_vsi_filters(vsi);
1712 if (ret)
1713 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
1714 vf->vf_id, ret);
1715
1716 error_param:
1717 /* send the response to the VF */
1718 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
1719 ret);
1720 }
1721
1722 /**
1723 * i40e_vc_add_vlan_msg
1724 * @vf: pointer to the VF info
1725 * @msg: pointer to the msg buffer
1726 * @msglen: msg length
1727 *
1728 * program guest vlan id
1729 **/
1730 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1731 {
1732 struct i40e_virtchnl_vlan_filter_list *vfl =
1733 (struct i40e_virtchnl_vlan_filter_list *)msg;
1734 struct i40e_pf *pf = vf->pf;
1735 struct i40e_vsi *vsi = NULL;
1736 u16 vsi_id = vfl->vsi_id;
1737 i40e_status aq_ret = 0;
1738 int i;
1739
1740 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1741 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1742 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1743 aq_ret = I40E_ERR_PARAM;
1744 goto error_param;
1745 }
1746
1747 for (i = 0; i < vfl->num_elements; i++) {
1748 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1749 aq_ret = I40E_ERR_PARAM;
1750 dev_err(&pf->pdev->dev,
1751 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1752 goto error_param;
1753 }
1754 }
1755 vsi = pf->vsi[vf->lan_vsi_idx];
1756 if (vsi->info.pvid) {
1757 aq_ret = I40E_ERR_PARAM;
1758 goto error_param;
1759 }
1760
1761 i40e_vlan_stripping_enable(vsi);
1762 for (i = 0; i < vfl->num_elements; i++) {
1763 /* add new VLAN filter */
1764 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1765
1766 if (ret)
1767 dev_err(&pf->pdev->dev,
1768 "Unable to add VLAN filter %d for VF %d, error %d\n",
1769 vfl->vlan_id[i], vf->vf_id, ret);
1770 }
1771
1772 error_param:
1773 /* send the response to the VF */
1774 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1775 }
1776
1777 /**
1778 * i40e_vc_remove_vlan_msg
1779 * @vf: pointer to the VF info
1780 * @msg: pointer to the msg buffer
1781 * @msglen: msg length
1782 *
1783 * remove programmed guest vlan id
1784 **/
1785 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1786 {
1787 struct i40e_virtchnl_vlan_filter_list *vfl =
1788 (struct i40e_virtchnl_vlan_filter_list *)msg;
1789 struct i40e_pf *pf = vf->pf;
1790 struct i40e_vsi *vsi = NULL;
1791 u16 vsi_id = vfl->vsi_id;
1792 i40e_status aq_ret = 0;
1793 int i;
1794
1795 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1796 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1797 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1798 aq_ret = I40E_ERR_PARAM;
1799 goto error_param;
1800 }
1801
1802 for (i = 0; i < vfl->num_elements; i++) {
1803 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1804 aq_ret = I40E_ERR_PARAM;
1805 goto error_param;
1806 }
1807 }
1808
1809 vsi = pf->vsi[vf->lan_vsi_idx];
1810 if (vsi->info.pvid) {
1811 aq_ret = I40E_ERR_PARAM;
1812 goto error_param;
1813 }
1814
1815 for (i = 0; i < vfl->num_elements; i++) {
1816 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1817
1818 if (ret)
1819 dev_err(&pf->pdev->dev,
1820 "Unable to delete VLAN filter %d for VF %d, error %d\n",
1821 vfl->vlan_id[i], vf->vf_id, ret);
1822 }
1823
1824 error_param:
1825 /* send the response to the VF */
1826 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1827 }
1828
1829 /**
1830 * i40e_vc_validate_vf_msg
1831 * @vf: pointer to the VF info
1832 * @msg: pointer to the msg buffer
1833 * @msglen: msg length
1834 * @msghndl: msg handle
1835 *
1836 * validate msg
1837 **/
1838 static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
1839 u32 v_retval, u8 *msg, u16 msglen)
1840 {
1841 bool err_msg_format = false;
1842 int valid_len;
1843
1844 /* Check if VF is disabled. */
1845 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
1846 return I40E_ERR_PARAM;
1847
1848 /* Validate message length. */
1849 switch (v_opcode) {
1850 case I40E_VIRTCHNL_OP_VERSION:
1851 valid_len = sizeof(struct i40e_virtchnl_version_info);
1852 break;
1853 case I40E_VIRTCHNL_OP_RESET_VF:
1854 valid_len = 0;
1855 break;
1856 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1857 if (VF_IS_V11(vf))
1858 valid_len = sizeof(u32);
1859 else
1860 valid_len = 0;
1861 break;
1862 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
1863 valid_len = sizeof(struct i40e_virtchnl_txq_info);
1864 break;
1865 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
1866 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
1867 break;
1868 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1869 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
1870 if (msglen >= valid_len) {
1871 struct i40e_virtchnl_vsi_queue_config_info *vqc =
1872 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1873 valid_len += (vqc->num_queue_pairs *
1874 sizeof(struct
1875 i40e_virtchnl_queue_pair_info));
1876 if (vqc->num_queue_pairs == 0)
1877 err_msg_format = true;
1878 }
1879 break;
1880 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1881 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
1882 if (msglen >= valid_len) {
1883 struct i40e_virtchnl_irq_map_info *vimi =
1884 (struct i40e_virtchnl_irq_map_info *)msg;
1885 valid_len += (vimi->num_vectors *
1886 sizeof(struct i40e_virtchnl_vector_map));
1887 if (vimi->num_vectors == 0)
1888 err_msg_format = true;
1889 }
1890 break;
1891 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1892 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1893 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1894 break;
1895 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1896 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1897 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
1898 if (msglen >= valid_len) {
1899 struct i40e_virtchnl_ether_addr_list *veal =
1900 (struct i40e_virtchnl_ether_addr_list *)msg;
1901 valid_len += veal->num_elements *
1902 sizeof(struct i40e_virtchnl_ether_addr);
1903 if (veal->num_elements == 0)
1904 err_msg_format = true;
1905 }
1906 break;
1907 case I40E_VIRTCHNL_OP_ADD_VLAN:
1908 case I40E_VIRTCHNL_OP_DEL_VLAN:
1909 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
1910 if (msglen >= valid_len) {
1911 struct i40e_virtchnl_vlan_filter_list *vfl =
1912 (struct i40e_virtchnl_vlan_filter_list *)msg;
1913 valid_len += vfl->num_elements * sizeof(u16);
1914 if (vfl->num_elements == 0)
1915 err_msg_format = true;
1916 }
1917 break;
1918 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1919 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
1920 break;
1921 case I40E_VIRTCHNL_OP_GET_STATS:
1922 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1923 break;
1924 /* These are always errors coming from the VF. */
1925 case I40E_VIRTCHNL_OP_EVENT:
1926 case I40E_VIRTCHNL_OP_UNKNOWN:
1927 default:
1928 return -EPERM;
1929 }
1930 /* few more checks */
1931 if ((valid_len != msglen) || (err_msg_format)) {
1932 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
1933 return -EINVAL;
1934 } else {
1935 return 0;
1936 }
1937 }
1938
1939 /**
1940 * i40e_vc_process_vf_msg
1941 * @pf: pointer to the PF structure
1942 * @vf_id: source VF id
1943 * @msg: pointer to the msg buffer
1944 * @msglen: msg length
1945 * @msghndl: msg handle
1946 *
1947 * called from the common aeq/arq handler to
1948 * process request from VF
1949 **/
1950 int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
1951 u32 v_retval, u8 *msg, u16 msglen)
1952 {
1953 struct i40e_hw *hw = &pf->hw;
1954 unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
1955 struct i40e_vf *vf;
1956 int ret;
1957
1958 pf->vf_aq_requests++;
1959 if (local_vf_id >= pf->num_alloc_vfs)
1960 return -EINVAL;
1961 vf = &(pf->vf[local_vf_id]);
1962 /* perform basic checks on the msg */
1963 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
1964
1965 if (ret) {
1966 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
1967 local_vf_id, v_opcode, msglen);
1968 return ret;
1969 }
1970
1971 switch (v_opcode) {
1972 case I40E_VIRTCHNL_OP_VERSION:
1973 ret = i40e_vc_get_version_msg(vf, msg);
1974 break;
1975 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1976 ret = i40e_vc_get_vf_resources_msg(vf, msg);
1977 break;
1978 case I40E_VIRTCHNL_OP_RESET_VF:
1979 i40e_vc_reset_vf_msg(vf);
1980 ret = 0;
1981 break;
1982 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1983 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
1984 break;
1985 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1986 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
1987 break;
1988 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1989 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
1990 break;
1991 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1992 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
1993 i40e_vc_notify_vf_link_state(vf);
1994 break;
1995 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1996 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
1997 break;
1998 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1999 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
2000 break;
2001 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
2002 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
2003 break;
2004 case I40E_VIRTCHNL_OP_ADD_VLAN:
2005 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
2006 break;
2007 case I40E_VIRTCHNL_OP_DEL_VLAN:
2008 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
2009 break;
2010 case I40E_VIRTCHNL_OP_GET_STATS:
2011 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
2012 break;
2013 case I40E_VIRTCHNL_OP_UNKNOWN:
2014 default:
2015 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
2016 v_opcode, local_vf_id);
2017 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
2018 I40E_ERR_NOT_IMPLEMENTED);
2019 break;
2020 }
2021
2022 return ret;
2023 }
2024
2025 /**
2026 * i40e_vc_process_vflr_event
2027 * @pf: pointer to the PF structure
2028 *
2029 * called from the vlfr irq handler to
2030 * free up VF resources and state variables
2031 **/
2032 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
2033 {
2034 u32 reg, reg_idx, bit_idx, vf_id;
2035 struct i40e_hw *hw = &pf->hw;
2036 struct i40e_vf *vf;
2037
2038 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
2039 return 0;
2040
2041 /* Re-enable the VFLR interrupt cause here, before looking for which
2042 * VF got reset. Otherwise, if another VF gets a reset while the
2043 * first one is being processed, that interrupt will be lost, and
2044 * that VF will be stuck in reset forever.
2045 */
2046 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
2047 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
2048 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
2049 i40e_flush(hw);
2050
2051 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
2052 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
2053 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
2054 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
2055 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
2056 vf = &pf->vf[vf_id];
2057 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
2058 if (reg & BIT(bit_idx)) {
2059 /* clear the bit in GLGEN_VFLRSTAT */
2060 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
2061
2062 if (!test_bit(__I40E_DOWN, &pf->state))
2063 i40e_reset_vf(vf, true);
2064 }
2065 }
2066
2067 return 0;
2068 }
2069
2070 /**
2071 * i40e_ndo_set_vf_mac
2072 * @netdev: network interface device structure
2073 * @vf_id: VF identifier
2074 * @mac: mac address
2075 *
2076 * program VF mac address
2077 **/
2078 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
2079 {
2080 struct i40e_netdev_priv *np = netdev_priv(netdev);
2081 struct i40e_vsi *vsi = np->vsi;
2082 struct i40e_pf *pf = vsi->back;
2083 struct i40e_mac_filter *f;
2084 struct i40e_vf *vf;
2085 int ret = 0;
2086
2087 /* validate the request */
2088 if (vf_id >= pf->num_alloc_vfs) {
2089 dev_err(&pf->pdev->dev,
2090 "Invalid VF Identifier %d\n", vf_id);
2091 ret = -EINVAL;
2092 goto error_param;
2093 }
2094
2095 vf = &(pf->vf[vf_id]);
2096 vsi = pf->vsi[vf->lan_vsi_idx];
2097 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2098 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2099 vf_id);
2100 ret = -EAGAIN;
2101 goto error_param;
2102 }
2103
2104 if (is_multicast_ether_addr(mac)) {
2105 dev_err(&pf->pdev->dev,
2106 "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
2107 ret = -EINVAL;
2108 goto error_param;
2109 }
2110
2111 /* Lock once because below invoked function add/del_filter requires
2112 * mac_filter_list_lock to be held
2113 */
2114 spin_lock_bh(&vsi->mac_filter_list_lock);
2115
2116 /* delete the temporary mac address */
2117 if (!is_zero_ether_addr(vf->default_lan_addr.addr))
2118 i40e_del_filter(vsi, vf->default_lan_addr.addr,
2119 vf->port_vlan_id ? vf->port_vlan_id : -1,
2120 true, false);
2121
2122 /* Delete all the filters for this VSI - we're going to kill it
2123 * anyway.
2124 */
2125 list_for_each_entry(f, &vsi->mac_filter_list, list)
2126 i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);
2127
2128 spin_unlock_bh(&vsi->mac_filter_list_lock);
2129
2130 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2131 /* program mac filter */
2132 if (i40e_sync_vsi_filters(vsi)) {
2133 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2134 ret = -EIO;
2135 goto error_param;
2136 }
2137 ether_addr_copy(vf->default_lan_addr.addr, mac);
2138 vf->pf_set_mac = true;
2139 /* Force the VF driver stop so it has to reload with new MAC address */
2140 i40e_vc_disable_vf(pf, vf);
2141 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2142
2143 error_param:
2144 return ret;
2145 }
2146
2147 /**
2148 * i40e_ndo_set_vf_port_vlan
2149 * @netdev: network interface device structure
2150 * @vf_id: VF identifier
2151 * @vlan_id: mac address
2152 * @qos: priority setting
2153 *
2154 * program VF vlan id and/or qos
2155 **/
2156 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2157 int vf_id, u16 vlan_id, u8 qos)
2158 {
2159 u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
2160 struct i40e_netdev_priv *np = netdev_priv(netdev);
2161 struct i40e_pf *pf = np->vsi->back;
2162 bool is_vsi_in_vlan = false;
2163 struct i40e_vsi *vsi;
2164 struct i40e_vf *vf;
2165 int ret = 0;
2166
2167 /* validate the request */
2168 if (vf_id >= pf->num_alloc_vfs) {
2169 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2170 ret = -EINVAL;
2171 goto error_pvid;
2172 }
2173
2174 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2175 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2176 ret = -EINVAL;
2177 goto error_pvid;
2178 }
2179
2180 vf = &(pf->vf[vf_id]);
2181 vsi = pf->vsi[vf->lan_vsi_idx];
2182 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2183 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2184 vf_id);
2185 ret = -EAGAIN;
2186 goto error_pvid;
2187 }
2188
2189 if (le16_to_cpu(vsi->info.pvid) == vlanprio)
2190 /* duplicate request, so just return success */
2191 goto error_pvid;
2192
2193 spin_lock_bh(&vsi->mac_filter_list_lock);
2194 is_vsi_in_vlan = i40e_is_vsi_in_vlan(vsi);
2195 spin_unlock_bh(&vsi->mac_filter_list_lock);
2196
2197 if (le16_to_cpu(vsi->info.pvid) == 0 && is_vsi_in_vlan) {
2198 dev_err(&pf->pdev->dev,
2199 "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",
2200 vf_id);
2201 /* Administrator Error - knock the VF offline until he does
2202 * the right thing by reconfiguring his network correctly
2203 * and then reloading the VF driver.
2204 */
2205 i40e_vc_disable_vf(pf, vf);
2206 }
2207
2208 /* Check for condition where there was already a port VLAN ID
2209 * filter set and now it is being deleted by setting it to zero.
2210 * Additionally check for the condition where there was a port
2211 * VLAN but now there is a new and different port VLAN being set.
2212 * Before deleting all the old VLAN filters we must add new ones
2213 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2214 * MAC addresses deleted.
2215 */
2216 if ((!(vlan_id || qos) ||
2217 vlanprio != le16_to_cpu(vsi->info.pvid)) &&
2218 vsi->info.pvid)
2219 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
2220
2221 if (vsi->info.pvid) {
2222 /* kill old VLAN */
2223 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2224 VLAN_VID_MASK));
2225 if (ret) {
2226 dev_info(&vsi->back->pdev->dev,
2227 "remove VLAN failed, ret=%d, aq_err=%d\n",
2228 ret, pf->hw.aq.asq_last_status);
2229 }
2230 }
2231 if (vlan_id || qos)
2232 ret = i40e_vsi_add_pvid(vsi, vlanprio);
2233 else
2234 i40e_vsi_remove_pvid(vsi);
2235
2236 if (vlan_id) {
2237 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2238 vlan_id, qos, vf_id);
2239
2240 /* add new VLAN filter */
2241 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2242 if (ret) {
2243 dev_info(&vsi->back->pdev->dev,
2244 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2245 vsi->back->hw.aq.asq_last_status);
2246 goto error_pvid;
2247 }
2248 /* Kill non-vlan MAC filters - ignore error return since
2249 * there might not be any non-vlan MAC filters.
2250 */
2251 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
2252 }
2253
2254 if (ret) {
2255 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2256 goto error_pvid;
2257 }
2258 /* The Port VLAN needs to be saved across resets the same as the
2259 * default LAN MAC address.
2260 */
2261 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
2262 ret = 0;
2263
2264 error_pvid:
2265 return ret;
2266 }
2267
2268 #define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
2269 #define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
2270 /**
2271 * i40e_ndo_set_vf_bw
2272 * @netdev: network interface device structure
2273 * @vf_id: VF identifier
2274 * @tx_rate: Tx rate
2275 *
2276 * configure VF Tx rate
2277 **/
2278 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
2279 int max_tx_rate)
2280 {
2281 struct i40e_netdev_priv *np = netdev_priv(netdev);
2282 struct i40e_pf *pf = np->vsi->back;
2283 struct i40e_vsi *vsi;
2284 struct i40e_vf *vf;
2285 int speed = 0;
2286 int ret = 0;
2287
2288 /* validate the request */
2289 if (vf_id >= pf->num_alloc_vfs) {
2290 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
2291 ret = -EINVAL;
2292 goto error;
2293 }
2294
2295 if (min_tx_rate) {
2296 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
2297 min_tx_rate, vf_id);
2298 return -EINVAL;
2299 }
2300
2301 vf = &(pf->vf[vf_id]);
2302 vsi = pf->vsi[vf->lan_vsi_idx];
2303 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2304 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2305 vf_id);
2306 ret = -EAGAIN;
2307 goto error;
2308 }
2309
2310 switch (pf->hw.phy.link_info.link_speed) {
2311 case I40E_LINK_SPEED_40GB:
2312 speed = 40000;
2313 break;
2314 case I40E_LINK_SPEED_20GB:
2315 speed = 20000;
2316 break;
2317 case I40E_LINK_SPEED_10GB:
2318 speed = 10000;
2319 break;
2320 case I40E_LINK_SPEED_1GB:
2321 speed = 1000;
2322 break;
2323 default:
2324 break;
2325 }
2326
2327 if (max_tx_rate > speed) {
2328 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.",
2329 max_tx_rate, vf->vf_id);
2330 ret = -EINVAL;
2331 goto error;
2332 }
2333
2334 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
2335 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
2336 max_tx_rate = 50;
2337 }
2338
2339 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
2340 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
2341 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
2342 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
2343 if (ret) {
2344 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
2345 ret);
2346 ret = -EIO;
2347 goto error;
2348 }
2349 vf->tx_rate = max_tx_rate;
2350 error:
2351 return ret;
2352 }
2353
2354 /**
2355 * i40e_ndo_get_vf_config
2356 * @netdev: network interface device structure
2357 * @vf_id: VF identifier
2358 * @ivi: VF configuration structure
2359 *
2360 * return VF configuration
2361 **/
2362 int i40e_ndo_get_vf_config(struct net_device *netdev,
2363 int vf_id, struct ifla_vf_info *ivi)
2364 {
2365 struct i40e_netdev_priv *np = netdev_priv(netdev);
2366 struct i40e_vsi *vsi = np->vsi;
2367 struct i40e_pf *pf = vsi->back;
2368 struct i40e_vf *vf;
2369 int ret = 0;
2370
2371 /* validate the request */
2372 if (vf_id >= pf->num_alloc_vfs) {
2373 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2374 ret = -EINVAL;
2375 goto error_param;
2376 }
2377
2378 vf = &(pf->vf[vf_id]);
2379 /* first vsi is always the LAN vsi */
2380 vsi = pf->vsi[vf->lan_vsi_idx];
2381 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2382 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2383 vf_id);
2384 ret = -EAGAIN;
2385 goto error_param;
2386 }
2387
2388 ivi->vf = vf_id;
2389
2390 ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
2391
2392 ivi->max_tx_rate = vf->tx_rate;
2393 ivi->min_tx_rate = 0;
2394 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2395 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2396 I40E_VLAN_PRIORITY_SHIFT;
2397 if (vf->link_forced == false)
2398 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
2399 else if (vf->link_up == true)
2400 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
2401 else
2402 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
2403 ivi->spoofchk = vf->spoofchk;
2404 ret = 0;
2405
2406 error_param:
2407 return ret;
2408 }
2409
2410 /**
2411 * i40e_ndo_set_vf_link_state
2412 * @netdev: network interface device structure
2413 * @vf_id: VF identifier
2414 * @link: required link state
2415 *
2416 * Set the link state of a specified VF, regardless of physical link state
2417 **/
2418 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
2419 {
2420 struct i40e_netdev_priv *np = netdev_priv(netdev);
2421 struct i40e_pf *pf = np->vsi->back;
2422 struct i40e_virtchnl_pf_event pfe;
2423 struct i40e_hw *hw = &pf->hw;
2424 struct i40e_vf *vf;
2425 int abs_vf_id;
2426 int ret = 0;
2427
2428 /* validate the request */
2429 if (vf_id >= pf->num_alloc_vfs) {
2430 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2431 ret = -EINVAL;
2432 goto error_out;
2433 }
2434
2435 vf = &pf->vf[vf_id];
2436 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
2437
2438 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
2439 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
2440
2441 switch (link) {
2442 case IFLA_VF_LINK_STATE_AUTO:
2443 vf->link_forced = false;
2444 pfe.event_data.link_event.link_status =
2445 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
2446 pfe.event_data.link_event.link_speed =
2447 pf->hw.phy.link_info.link_speed;
2448 break;
2449 case IFLA_VF_LINK_STATE_ENABLE:
2450 vf->link_forced = true;
2451 vf->link_up = true;
2452 pfe.event_data.link_event.link_status = true;
2453 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
2454 break;
2455 case IFLA_VF_LINK_STATE_DISABLE:
2456 vf->link_forced = true;
2457 vf->link_up = false;
2458 pfe.event_data.link_event.link_status = false;
2459 pfe.event_data.link_event.link_speed = 0;
2460 break;
2461 default:
2462 ret = -EINVAL;
2463 goto error_out;
2464 }
2465 /* Notify the VF of its new link state */
2466 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
2467 0, (u8 *)&pfe, sizeof(pfe), NULL);
2468
2469 error_out:
2470 return ret;
2471 }
2472
2473 /**
2474 * i40e_ndo_set_vf_spoofchk
2475 * @netdev: network interface device structure
2476 * @vf_id: VF identifier
2477 * @enable: flag to enable or disable feature
2478 *
2479 * Enable or disable VF spoof checking
2480 **/
2481 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
2482 {
2483 struct i40e_netdev_priv *np = netdev_priv(netdev);
2484 struct i40e_vsi *vsi = np->vsi;
2485 struct i40e_pf *pf = vsi->back;
2486 struct i40e_vsi_context ctxt;
2487 struct i40e_hw *hw = &pf->hw;
2488 struct i40e_vf *vf;
2489 int ret = 0;
2490
2491 /* validate the request */
2492 if (vf_id >= pf->num_alloc_vfs) {
2493 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2494 ret = -EINVAL;
2495 goto out;
2496 }
2497
2498 vf = &(pf->vf[vf_id]);
2499 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2500 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
2501 vf_id);
2502 ret = -EAGAIN;
2503 goto out;
2504 }
2505
2506 if (enable == vf->spoofchk)
2507 goto out;
2508
2509 vf->spoofchk = enable;
2510 memset(&ctxt, 0, sizeof(ctxt));
2511 ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
2512 ctxt.pf_num = pf->hw.pf_id;
2513 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
2514 if (enable)
2515 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
2516 I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
2517 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
2518 if (ret) {
2519 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
2520 ret);
2521 ret = -EIO;
2522 }
2523 out:
2524 return ret;
2525 }
Linux kernel - Deliverables
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