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i40e: don't complain about removing non-existent addresses
[deliverable/linux.git] / drivers / net / ethernet / intel / i40e / i40e_virtchnl_pf.c
CommitLineData
5c3c48ac
JB		 1/*******************************************************************************
2 *
3 * Intel Ethernet Controller XL710 Family Linux Driver
dc641b73 4 * Copyright(c) 2013 - 2014 Intel Corporation.
5c3c48ac
JB		 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 *
dc641b73
GR		 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/>.
5c3c48ac
JB		 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/***********************misc routines*****************************/
30
f9b4b627
GR		 31/**
32 * i40e_vc_disable_vf
33 * @pf: pointer to the pf info
34 * @vf: pointer to the vf info
35 *
36 * Disable the VF through a SW reset
37 **/
38static inline void i40e_vc_disable_vf(struct i40e_pf *pf, struct i40e_vf *vf)
39{
40 struct i40e_hw *hw = &pf->hw;
41 u32 reg;
42
43 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
44 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
45 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
46 i40e_flush(hw);
47}
48
5c3c48ac
JB		 49/**
50 * i40e_vc_isvalid_vsi_id
51 * @vf: pointer to the vf info
52 * @vsi_id: vf relative vsi id
53 *
54 * check for the valid vsi id
55 **/
56static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u8 vsi_id)
57{
58 struct i40e_pf *pf = vf->pf;
59
60 return pf->vsi[vsi_id]->vf_id == vf->vf_id;
61}
62
63/**
64 * i40e_vc_isvalid_queue_id
65 * @vf: pointer to the vf info
66 * @vsi_id: vsi id
67 * @qid: vsi relative queue id
68 *
69 * check for the valid queue id
70 **/
71static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u8 vsi_id,
72 u8 qid)
73{
74 struct i40e_pf *pf = vf->pf;
75
76 return qid < pf->vsi[vsi_id]->num_queue_pairs;
77}
78
79/**
80 * i40e_vc_isvalid_vector_id
81 * @vf: pointer to the vf info
82 * @vector_id: vf relative vector id
83 *
84 * check for the valid vector id
85 **/
86static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
87{
88 struct i40e_pf *pf = vf->pf;
89
9347eb77 90 return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
5c3c48ac
JB		 91}
92
93/***********************vf resource mgmt routines*****************/
94
95/**
96 * i40e_vc_get_pf_queue_id
97 * @vf: pointer to the vf info
98 * @vsi_idx: index of VSI in PF struct
99 * @vsi_queue_id: vsi relative queue id
100 *
101 * return pf relative queue id
102 **/
103static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u8 vsi_idx,
104 u8 vsi_queue_id)
105{
106 struct i40e_pf *pf = vf->pf;
107 struct i40e_vsi *vsi = pf->vsi[vsi_idx];
108 u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;
109
110 if (le16_to_cpu(vsi->info.mapping_flags) &
111 I40E_AQ_VSI_QUE_MAP_NONCONTIG)
112 pf_queue_id =
113 le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
114 else
115 pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
116 vsi_queue_id;
117
118 return pf_queue_id;
119}
120
5c3c48ac
JB		 121/**
122 * i40e_config_irq_link_list
123 * @vf: pointer to the vf info
124 * @vsi_idx: index of VSI in PF struct
125 * @vecmap: irq map info
126 *
127 * configure irq link list from the map
128 **/
129static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_idx,
130 struct i40e_virtchnl_vector_map *vecmap)
131{
132 unsigned long linklistmap = 0, tempmap;
133 struct i40e_pf *pf = vf->pf;
134 struct i40e_hw *hw = &pf->hw;
135 u16 vsi_queue_id, pf_queue_id;
136 enum i40e_queue_type qtype;
137 u16 next_q, vector_id;
138 u32 reg, reg_idx;
139 u16 itr_idx = 0;
140
141 vector_id = vecmap->vector_id;
142 /* setup the head */
143 if (0 == vector_id)
144 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
145 else
146 reg_idx = I40E_VPINT_LNKLSTN(
9347eb77
MW		 147 ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
148 (vector_id - 1));
5c3c48ac
JB		 149
150 if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
151 /* Special case - No queues mapped on this vector */
152 wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
153 goto irq_list_done;
154 }
155 tempmap = vecmap->rxq_map;
4836650b 156 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
5c3c48ac
JB		 157 linklistmap |= (1 <<
158 (I40E_VIRTCHNL_SUPPORTED_QTYPES *
159 vsi_queue_id));
5c3c48ac
JB		 160 }
161
162 tempmap = vecmap->txq_map;
4836650b 163 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
5c3c48ac
JB		 164 linklistmap |= (1 <<
165 (I40E_VIRTCHNL_SUPPORTED_QTYPES * vsi_queue_id
166 + 1));
5c3c48ac
JB		 167 }
168
169 next_q = find_first_bit(&linklistmap,
170 (I40E_MAX_VSI_QP *
171 I40E_VIRTCHNL_SUPPORTED_QTYPES));
172 vsi_queue_id = next_q/I40E_VIRTCHNL_SUPPORTED_QTYPES;
173 qtype = next_q%I40E_VIRTCHNL_SUPPORTED_QTYPES;
174 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
175 reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);
176
177 wr32(hw, reg_idx, reg);
178
179 while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
180 switch (qtype) {
181 case I40E_QUEUE_TYPE_RX:
182 reg_idx = I40E_QINT_RQCTL(pf_queue_id);
183 itr_idx = vecmap->rxitr_idx;
184 break;
185 case I40E_QUEUE_TYPE_TX:
186 reg_idx = I40E_QINT_TQCTL(pf_queue_id);
187 itr_idx = vecmap->txitr_idx;
188 break;
189 default:
190 break;
191 }
192
193 next_q = find_next_bit(&linklistmap,
194 (I40E_MAX_VSI_QP *
195 I40E_VIRTCHNL_SUPPORTED_QTYPES),
196 next_q + 1);
829af3ac
MW		 197 if (next_q <
198 (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
5c3c48ac
JB		 199 vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
200 qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
201 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx,
202 vsi_queue_id);
203 } else {
204 pf_queue_id = I40E_QUEUE_END_OF_LIST;
205 qtype = 0;
206 }
207
208 /* format for the RQCTL & TQCTL regs is same */
209 reg = (vector_id) |
210 (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
211 (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
212 (1 << I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
213 (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
214 wr32(hw, reg_idx, reg);
215 }
216
217irq_list_done:
218 i40e_flush(hw);
219}
220
221/**
222 * i40e_config_vsi_tx_queue
223 * @vf: pointer to the vf info
224 * @vsi_idx: index of VSI in PF struct
225 * @vsi_queue_id: vsi relative queue index
226 * @info: config. info
227 *
228 * configure tx queue
229 **/
230static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_idx,
231 u16 vsi_queue_id,
232 struct i40e_virtchnl_txq_info *info)
233{
234 struct i40e_pf *pf = vf->pf;
235 struct i40e_hw *hw = &pf->hw;
236 struct i40e_hmc_obj_txq tx_ctx;
237 u16 pf_queue_id;
238 u32 qtx_ctl;
239 int ret = 0;
240
241 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
242
243 /* clear the context structure first */
244 memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));
245
246 /* only set the required fields */
247 tx_ctx.base = info->dma_ring_addr / 128;
248 tx_ctx.qlen = info->ring_len;
249 tx_ctx.rdylist = le16_to_cpu(pf->vsi[vsi_idx]->info.qs_handle[0]);
250 tx_ctx.rdylist_act = 0;
1943d8ba
JB		 251 tx_ctx.head_wb_ena = 1;
252 tx_ctx.head_wb_addr = info->dma_ring_addr +
253 (info->ring_len * sizeof(struct i40e_tx_desc));
5c3c48ac
JB		 254
255 /* clear the context in the HMC */
256 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
257 if (ret) {
258 dev_err(&pf->pdev->dev,
259 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
260 pf_queue_id, ret);
261 ret = -ENOENT;
262 goto error_context;
263 }
264
265 /* set the context in the HMC */
266 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
267 if (ret) {
268 dev_err(&pf->pdev->dev,
269 "Failed to set VF LAN Tx queue context %d error: %d\n",
270 pf_queue_id, ret);
271 ret = -ENOENT;
272 goto error_context;
273 }
274
275 /* associate this queue with the PCI VF function */
276 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
13fd9774 277 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
5c3c48ac
JB		 278 & I40E_QTX_CTL_PF_INDX_MASK);
279 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
280 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
281 & I40E_QTX_CTL_VFVM_INDX_MASK);
282 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
283 i40e_flush(hw);
284
285error_context:
286 return ret;
287}
288
289/**
290 * i40e_config_vsi_rx_queue
291 * @vf: pointer to the vf info
292 * @vsi_idx: index of VSI in PF struct
293 * @vsi_queue_id: vsi relative queue index
294 * @info: config. info
295 *
296 * configure rx queue
297 **/
298static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_idx,
299 u16 vsi_queue_id,
300 struct i40e_virtchnl_rxq_info *info)
301{
302 struct i40e_pf *pf = vf->pf;
303 struct i40e_hw *hw = &pf->hw;
304 struct i40e_hmc_obj_rxq rx_ctx;
305 u16 pf_queue_id;
306 int ret = 0;
307
308 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
309
310 /* clear the context structure first */
311 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
312
313 /* only set the required fields */
314 rx_ctx.base = info->dma_ring_addr / 128;
315 rx_ctx.qlen = info->ring_len;
316
317 if (info->splithdr_enabled) {
318 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
319 I40E_RX_SPLIT_IP |
320 I40E_RX_SPLIT_TCP_UDP |
321 I40E_RX_SPLIT_SCTP;
322 /* header length validation */
323 if (info->hdr_size > ((2 * 1024) - 64)) {
324 ret = -EINVAL;
325 goto error_param;
326 }
327 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
328
329 /* set splitalways mode 10b */
330 rx_ctx.dtype = 0x2;
331 }
332
333 /* databuffer length validation */
334 if (info->databuffer_size > ((16 * 1024) - 128)) {
335 ret = -EINVAL;
336 goto error_param;
337 }
338 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
339
340 /* max pkt. length validation */
341 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
342 ret = -EINVAL;
343 goto error_param;
344 }
345 rx_ctx.rxmax = info->max_pkt_size;
346
347 /* enable 32bytes desc always */
348 rx_ctx.dsize = 1;
349
350 /* default values */
351 rx_ctx.tphrdesc_ena = 1;
352 rx_ctx.tphwdesc_ena = 1;
353 rx_ctx.tphdata_ena = 1;
354 rx_ctx.tphhead_ena = 1;
355 rx_ctx.lrxqthresh = 2;
356 rx_ctx.crcstrip = 1;
50d41659 357 rx_ctx.prefena = 1;
5c3c48ac
JB		 358
359 /* clear the context in the HMC */
360 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
361 if (ret) {
362 dev_err(&pf->pdev->dev,
363 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
364 pf_queue_id, ret);
365 ret = -ENOENT;
366 goto error_param;
367 }
368
369 /* set the context in the HMC */
370 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
371 if (ret) {
372 dev_err(&pf->pdev->dev,
373 "Failed to set VF LAN Rx queue context %d error: %d\n",
374 pf_queue_id, ret);
375 ret = -ENOENT;
376 goto error_param;
377 }
378
379error_param:
380 return ret;
381}
382
383/**
384 * i40e_alloc_vsi_res
385 * @vf: pointer to the vf info
386 * @type: type of VSI to allocate
387 *
388 * alloc vf vsi context & resources
389 **/
390static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
391{
392 struct i40e_mac_filter *f = NULL;
393 struct i40e_pf *pf = vf->pf;
5c3c48ac
JB		 394 struct i40e_vsi *vsi;
395 int ret = 0;
396
397 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
398
399 if (!vsi) {
400 dev_err(&pf->pdev->dev,
401 "add vsi failed for vf %d, aq_err %d\n",
402 vf->vf_id, pf->hw.aq.asq_last_status);
403 ret = -ENOENT;
404 goto error_alloc_vsi_res;
405 }
406 if (type == I40E_VSI_SRIOV) {
1a10370a 407 u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
5c3c48ac
JB		 408 vf->lan_vsi_index = vsi->idx;
409 vf->lan_vsi_id = vsi->id;
410 dev_info(&pf->pdev->dev,
d4194996
MW		 411 "VF %d assigned LAN VSI index %d, VSI id %d\n",
412 vf->vf_id, vsi->idx, vsi->id);
6c12fcbf
GR		 413 /* If the port VLAN has been configured and then the
414 * VF driver was removed then the VSI port VLAN
415 * configuration was destroyed. Check if there is
416 * a port VLAN and restore the VSI configuration if
417 * needed.
418 */
419 if (vf->port_vlan_id)
420 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
5c3c48ac 421 f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
6c12fcbf 422 vf->port_vlan_id, true, false);
1a10370a
GR		 423 if (!f)
424 dev_info(&pf->pdev->dev,
425 "Could not allocate VF MAC addr\n");
426 f = i40e_add_filter(vsi, brdcast, vf->port_vlan_id,
427 true, false);
428 if (!f)
429 dev_info(&pf->pdev->dev,
430 "Could not allocate VF broadcast filter\n");
5c3c48ac 431 }
6dbbbfb2 432
5c3c48ac
JB		 433 /* program mac filter */
434 ret = i40e_sync_vsi_filters(vsi);
fd1646ee 435 if (ret)
5c3c48ac 436 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
5c3c48ac 437
6b192891
MW		 438 /* Set VF bandwidth if specified */
439 if (vf->tx_rate) {
440 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
441 vf->tx_rate / 50, 0, NULL);
442 if (ret)
443 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
444 vf->vf_id, ret);
445 }
446
5c3c48ac
JB		 447error_alloc_vsi_res:
448 return ret;
449}
450
805bd5bd
MW		 451/**
452 * i40e_enable_vf_mappings
453 * @vf: pointer to the vf info
454 *
455 * enable vf mappings
456 **/
457static void i40e_enable_vf_mappings(struct i40e_vf *vf)
458{
459 struct i40e_pf *pf = vf->pf;
460 struct i40e_hw *hw = &pf->hw;
461 u32 reg, total_queue_pairs = 0;
462 int j;
463
464 /* Tell the hardware we're using noncontiguous mapping. HW requires
465 * that VF queues be mapped using this method, even when they are
466 * contiguous in real life
467 */
468 wr32(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
469 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
470
471 /* enable VF vplan_qtable mappings */
472 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
473 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
474
475 /* map PF queues to VF queues */
476 for (j = 0; j < pf->vsi[vf->lan_vsi_index]->num_queue_pairs; j++) {
477 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index, j);
478 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
479 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
480 total_queue_pairs++;
481 }
482
483 /* map PF queues to VSI */
484 for (j = 0; j < 7; j++) {
485 if (j * 2 >= pf->vsi[vf->lan_vsi_index]->num_queue_pairs) {
486 reg = 0x07FF07FF; /* unused */
487 } else {
488 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index,
489 j * 2);
490 reg = qid;
491 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index,
492 (j * 2) + 1);
493 reg |= qid << 16;
494 }
495 wr32(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), reg);
496 }
497
498 i40e_flush(hw);
499}
500
501/**
502 * i40e_disable_vf_mappings
503 * @vf: pointer to the vf info
504 *
505 * disable vf mappings
506 **/
507static void i40e_disable_vf_mappings(struct i40e_vf *vf)
508{
509 struct i40e_pf *pf = vf->pf;
510 struct i40e_hw *hw = &pf->hw;
511 int i;
512
513 /* disable qp mappings */
514 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
515 for (i = 0; i < I40E_MAX_VSI_QP; i++)
516 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
517 I40E_QUEUE_END_OF_LIST);
518 i40e_flush(hw);
519}
520
521/**
522 * i40e_free_vf_res
523 * @vf: pointer to the vf info
524 *
525 * free vf resources
526 **/
527static void i40e_free_vf_res(struct i40e_vf *vf)
528{
529 struct i40e_pf *pf = vf->pf;
fc18eaa0
MW		 530 struct i40e_hw *hw = &pf->hw;
531 u32 reg_idx, reg;
532 int i, msix_vf;
805bd5bd
MW		 533
534 /* free vsi & disconnect it from the parent uplink */
535 if (vf->lan_vsi_index) {
536 i40e_vsi_release(pf->vsi[vf->lan_vsi_index]);
537 vf->lan_vsi_index = 0;
538 vf->lan_vsi_id = 0;
539 }
9347eb77
MW		 540 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
541
fc18eaa0
MW		 542 /* disable interrupts so the VF starts in a known state */
543 for (i = 0; i < msix_vf; i++) {
544 /* format is same for both registers */
545 if (0 == i)
546 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
547 else
548 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
549 (vf->vf_id))
550 + (i - 1));
551 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
552 i40e_flush(hw);
553 }
805bd5bd 554
fc18eaa0
MW		 555 /* clear the irq settings */
556 for (i = 0; i < msix_vf; i++) {
557 /* format is same for both registers */
558 if (0 == i)
559 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
560 else
561 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
562 (vf->vf_id))
563 + (i - 1));
564 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
565 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
566 wr32(hw, reg_idx, reg);
567 i40e_flush(hw);
568 }
805bd5bd
MW		 569 /* reset some of the state varibles keeping
570 * track of the resources
571 */
572 vf->num_queue_pairs = 0;
573 vf->vf_states = 0;
574}
575
576/**
577 * i40e_alloc_vf_res
578 * @vf: pointer to the vf info
579 *
580 * allocate vf resources
581 **/
582static int i40e_alloc_vf_res(struct i40e_vf *vf)
583{
584 struct i40e_pf *pf = vf->pf;
585 int total_queue_pairs = 0;
586 int ret;
587
588 /* allocate hw vsi context & associated resources */
589 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
590 if (ret)
591 goto error_alloc;
592 total_queue_pairs += pf->vsi[vf->lan_vsi_index]->num_queue_pairs;
593 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
594
595 /* store the total qps number for the runtime
596 * vf req validation
597 */
598 vf->num_queue_pairs = total_queue_pairs;
599
600 /* vf is now completely initialized */
601 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
602
603error_alloc:
604 if (ret)
605 i40e_free_vf_res(vf);
606
607 return ret;
608}
609
fc18eaa0
MW		 610#define VF_DEVICE_STATUS 0xAA
611#define VF_TRANS_PENDING_MASK 0x20
612/**
613 * i40e_quiesce_vf_pci
614 * @vf: pointer to the vf structure
615 *
616 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
617 * if the transactions never clear.
618 **/
619static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
620{
621 struct i40e_pf *pf = vf->pf;
622 struct i40e_hw *hw = &pf->hw;
623 int vf_abs_id, i;
624 u32 reg;
625
b141d619 626 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
fc18eaa0
MW		 627
628 wr32(hw, I40E_PF_PCI_CIAA,
629 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
630 for (i = 0; i < 100; i++) {
631 reg = rd32(hw, I40E_PF_PCI_CIAD);
632 if ((reg & VF_TRANS_PENDING_MASK) == 0)
633 return 0;
634 udelay(1);
635 }
636 return -EIO;
637}
638
5c3c48ac
JB		 639/**
640 * i40e_reset_vf
641 * @vf: pointer to the vf structure
642 * @flr: VFLR was issued or not
643 *
644 * reset the vf
645 **/
fc18eaa0 646void i40e_reset_vf(struct i40e_vf *vf, bool flr)
5c3c48ac 647{
5c3c48ac
JB		 648 struct i40e_pf *pf = vf->pf;
649 struct i40e_hw *hw = &pf->hw;
5c3c48ac 650 bool rsd = false;
fc18eaa0
MW		 651 int i;
652 u32 reg;
5c3c48ac
JB		 653
654 /* warn the VF */
5c3c48ac
JB		 655 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
656
fc18eaa0
MW		 657 /* In the case of a VFLR, the HW has already reset the VF and we
658 * just need to clean up, so don't hit the VFRTRIG register.
5c3c48ac
JB		 659 */
660 if (!flr) {
661 /* reset vf using VPGEN_VFRTRIG reg */
fc18eaa0
MW		 662 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
663 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
5c3c48ac
JB		 664 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
665 i40e_flush(hw);
666 }
667
fc18eaa0
MW		 668 if (i40e_quiesce_vf_pci(vf))
669 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
670 vf->vf_id);
671
5c3c48ac
JB		 672 /* poll VPGEN_VFRSTAT reg to make sure
673 * that reset is complete
674 */
fc18eaa0 675 for (i = 0; i < 100; i++) {
5c3c48ac
JB		 676 /* vf reset requires driver to first reset the
677 * vf & than poll the status register to make sure
678 * that the requested op was completed
679 * successfully
680 */
681 udelay(10);
682 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
683 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
684 rsd = true;
685 break;
686 }
687 }
688
689 if (!rsd)
fc18eaa0 690 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
5c3c48ac 691 vf->vf_id);
fc18eaa0 692 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
5c3c48ac
JB		 693 /* clear the reset bit in the VPGEN_VFRTRIG reg */
694 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
695 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
696 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
fc18eaa0
MW		 697
698 /* On initial reset, we won't have any queues */
699 if (vf->lan_vsi_index == 0)
700 goto complete_reset;
701
702 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_index], false);
703complete_reset:
704 /* reallocate vf resources to reset the VSI state */
705 i40e_free_vf_res(vf);
fc18eaa0
MW		 706 i40e_alloc_vf_res(vf);
707 i40e_enable_vf_mappings(vf);
c17b362b 708 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
fc18eaa0 709
5c3c48ac 710 /* tell the VF the reset is done */
fc18eaa0 711 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
5c3c48ac 712 i40e_flush(hw);
5c3c48ac
JB		 713}
714
5c3c48ac
JB		 715/**
716 * i40e_vfs_are_assigned
717 * @pf: pointer to the pf structure
718 *
719 * Determine if any VFs are assigned to VMs
720 **/
721static bool i40e_vfs_are_assigned(struct i40e_pf *pf)
722{
723 struct pci_dev *pdev = pf->pdev;
724 struct pci_dev *vfdev;
725
726 /* loop through all the VFs to see if we own any that are assigned */
ab60085e 727 vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, I40E_DEV_ID_VF , NULL);
5c3c48ac
JB		 728 while (vfdev) {
729 /* if we don't own it we don't care */
730 if (vfdev->is_virtfn && pci_physfn(vfdev) == pdev) {
731 /* if it is assigned we cannot release it */
732 if (vfdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
733 return true;
734 }
735
736 vfdev = pci_get_device(PCI_VENDOR_ID_INTEL,
ab60085e 737 I40E_DEV_ID_VF,
5c3c48ac
JB		 738 vfdev);
739 }
740
741 return false;
742}
c354229f
GR		 743#ifdef CONFIG_PCI_IOV
744
745/**
746 * i40e_enable_pf_switch_lb
747 * @pf: pointer to the pf structure
748 *
749 * enable switch loop back or die - no point in a return value
750 **/
751static void i40e_enable_pf_switch_lb(struct i40e_pf *pf)
752{
753 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
754 struct i40e_vsi_context ctxt;
755 int aq_ret;
756
757 ctxt.seid = pf->main_vsi_seid;
758 ctxt.pf_num = pf->hw.pf_id;
759 ctxt.vf_num = 0;
760 aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
761 if (aq_ret) {
762 dev_info(&pf->pdev->dev,
763 "%s couldn't get pf vsi config, err %d, aq_err %d\n",
764 __func__, aq_ret, pf->hw.aq.asq_last_status);
765 return;
766 }
767 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
768 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
769 ctxt.info.switch_id |= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
770
771 aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
772 if (aq_ret) {
773 dev_info(&pf->pdev->dev,
774 "%s: update vsi switch failed, aq_err=%d\n",
775 __func__, vsi->back->hw.aq.asq_last_status);
776 }
777}
778#endif
779
780/**
781 * i40e_disable_pf_switch_lb
782 * @pf: pointer to the pf structure
783 *
784 * disable switch loop back or die - no point in a return value
785 **/
786static void i40e_disable_pf_switch_lb(struct i40e_pf *pf)
787{
788 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
789 struct i40e_vsi_context ctxt;
790 int aq_ret;
791
792 ctxt.seid = pf->main_vsi_seid;
793 ctxt.pf_num = pf->hw.pf_id;
794 ctxt.vf_num = 0;
795 aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
796 if (aq_ret) {
797 dev_info(&pf->pdev->dev,
798 "%s couldn't get pf vsi config, err %d, aq_err %d\n",
799 __func__, aq_ret, pf->hw.aq.asq_last_status);
800 return;
801 }
802 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
803 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
804 ctxt.info.switch_id &= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
805
806 aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
807 if (aq_ret) {
808 dev_info(&pf->pdev->dev,
809 "%s: update vsi switch failed, aq_err=%d\n",
810 __func__, vsi->back->hw.aq.asq_last_status);
811 }
812}
5c3c48ac
JB		 813
814/**
815 * i40e_free_vfs
816 * @pf: pointer to the pf structure
817 *
818 * free vf resources
819 **/
820void i40e_free_vfs(struct i40e_pf *pf)
821{
f7414531
MW		 822 struct i40e_hw *hw = &pf->hw;
823 u32 reg_idx, bit_idx;
824 int i, tmp, vf_id;
5c3c48ac
JB		 825
826 if (!pf->vf)
827 return;
828
829 /* Disable interrupt 0 so we don't try to handle the VFLR. */
2ef28cfb
MW		 830 i40e_irq_dynamic_disable_icr0(pf);
831
6c1b5bff 832 mdelay(10); /* let any messages in transit get finished up */
5c3c48ac 833 /* free up vf resources */
6c1b5bff
MW		 834 tmp = pf->num_alloc_vfs;
835 pf->num_alloc_vfs = 0;
836 for (i = 0; i < tmp; i++) {
5c3c48ac
JB		 837 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
838 i40e_free_vf_res(&pf->vf[i]);
839 /* disable qp mappings */
840 i40e_disable_vf_mappings(&pf->vf[i]);
841 }
842
843 kfree(pf->vf);
844 pf->vf = NULL;
5c3c48ac 845
9e5634df
MW		 846 /* This check is for when the driver is unloaded while VFs are
847 * assigned. Setting the number of VFs to 0 through sysfs is caught
848 * before this function ever gets called.
849 */
f7414531 850 if (!i40e_vfs_are_assigned(pf)) {
5c3c48ac 851 pci_disable_sriov(pf->pdev);
f7414531
MW		 852 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
853 * work correctly when SR-IOV gets re-enabled.
854 */
855 for (vf_id = 0; vf_id < tmp; vf_id++) {
856 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
857 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
858 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
859 }
c354229f
GR		 860 i40e_disable_pf_switch_lb(pf);
861 } else {
5c3c48ac
JB		 862 dev_warn(&pf->pdev->dev,
863 "unable to disable SR-IOV because VFs are assigned.\n");
c354229f 864 }
5c3c48ac
JB		 865
866 /* Re-enable interrupt 0. */
2ef28cfb 867 i40e_irq_dynamic_enable_icr0(pf);
5c3c48ac
JB		 868}
869
870#ifdef CONFIG_PCI_IOV
871/**
872 * i40e_alloc_vfs
873 * @pf: pointer to the pf structure
874 * @num_alloc_vfs: number of vfs to allocate
875 *
876 * allocate vf resources
877 **/
4aeec010 878int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
5c3c48ac
JB		 879{
880 struct i40e_vf *vfs;
881 int i, ret = 0;
882
6c1b5bff 883 /* Disable interrupt 0 so we don't try to handle the VFLR. */
2ef28cfb
MW		 884 i40e_irq_dynamic_disable_icr0(pf);
885
4aeec010
MW		 886 /* Check to see if we're just allocating resources for extant VFs */
887 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
888 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
889 if (ret) {
890 dev_err(&pf->pdev->dev,
891 "Failed to enable SR-IOV, error %d.\n", ret);
892 pf->num_alloc_vfs = 0;
893 goto err_iov;
894 }
5c3c48ac 895 }
5c3c48ac 896 /* allocate memory */
cc6456af 897 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
5c3c48ac
JB		 898 if (!vfs) {
899 ret = -ENOMEM;
900 goto err_alloc;
901 }
902
903 /* apply default profile */
904 for (i = 0; i < num_alloc_vfs; i++) {
905 vfs[i].pf = pf;
906 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
907 vfs[i].vf_id = i;
908
909 /* assign default capabilities */
910 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
fc18eaa0
MW		 911 /* vf resources get allocated during reset */
912 i40e_reset_vf(&vfs[i], false);
5c3c48ac
JB		 913
914 /* enable vf vplan_qtable mappings */
915 i40e_enable_vf_mappings(&vfs[i]);
916 }
917 pf->vf = vfs;
918 pf->num_alloc_vfs = num_alloc_vfs;
919
c354229f 920 i40e_enable_pf_switch_lb(pf);
5c3c48ac
JB		 921err_alloc:
922 if (ret)
923 i40e_free_vfs(pf);
924err_iov:
6c1b5bff 925 /* Re-enable interrupt 0. */
2ef28cfb 926 i40e_irq_dynamic_enable_icr0(pf);
5c3c48ac
JB		 927 return ret;
928}
929
930#endif
931/**
932 * i40e_pci_sriov_enable
933 * @pdev: pointer to a pci_dev structure
934 * @num_vfs: number of vfs to allocate
935 *
936 * Enable or change the number of VFs
937 **/
938static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
939{
940#ifdef CONFIG_PCI_IOV
941 struct i40e_pf *pf = pci_get_drvdata(pdev);
942 int pre_existing_vfs = pci_num_vf(pdev);
943 int err = 0;
944
945 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
946 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
947 i40e_free_vfs(pf);
948 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
949 goto out;
950
951 if (num_vfs > pf->num_req_vfs) {
952 err = -EPERM;
953 goto err_out;
954 }
955
956 err = i40e_alloc_vfs(pf, num_vfs);
957 if (err) {
958 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
959 goto err_out;
960 }
961
962out:
963 return num_vfs;
964
965err_out:
966 return err;
967#endif
968 return 0;
969}
970
971/**
972 * i40e_pci_sriov_configure
973 * @pdev: pointer to a pci_dev structure
974 * @num_vfs: number of vfs to allocate
975 *
976 * Enable or change the number of VFs. Called when the user updates the number
977 * of VFs in sysfs.
978 **/
979int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
980{
981 struct i40e_pf *pf = pci_get_drvdata(pdev);
982
983 if (num_vfs)
984 return i40e_pci_sriov_enable(pdev, num_vfs);
985
9e5634df
MW		 986 if (!i40e_vfs_are_assigned(pf)) {
987 i40e_free_vfs(pf);
988 } else {
989 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
990 return -EINVAL;
991 }
5c3c48ac
JB		 992 return 0;
993}
994
995/***********************virtual channel routines******************/
996
997/**
998 * i40e_vc_send_msg_to_vf
999 * @vf: pointer to the vf info
1000 * @v_opcode: virtual channel opcode
1001 * @v_retval: virtual channel return value
1002 * @msg: pointer to the msg buffer
1003 * @msglen: msg length
1004 *
1005 * send msg to vf
1006 **/
1007static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1008 u32 v_retval, u8 *msg, u16 msglen)
1009{
1010 struct i40e_pf *pf = vf->pf;
1011 struct i40e_hw *hw = &pf->hw;
7efa84b7 1012 int true_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
5c3c48ac
JB		 1013 i40e_status aq_ret;
1014
1015 /* single place to detect unsuccessful return values */
1016 if (v_retval) {
1017 vf->num_invalid_msgs++;
1018 dev_err(&pf->pdev->dev, "Failed opcode %d Error: %d\n",
1019 v_opcode, v_retval);
1020 if (vf->num_invalid_msgs >
1021 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1022 dev_err(&pf->pdev->dev,
1023 "Number of invalid messages exceeded for VF %d\n",
1024 vf->vf_id);
1025 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1026 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1027 }
1028 } else {
1029 vf->num_valid_msgs++;
1030 }
1031
7efa84b7
MW		 1032 aq_ret = i40e_aq_send_msg_to_vf(hw, true_vf_id, v_opcode, v_retval,
1033 msg, msglen, NULL);
5c3c48ac
JB		 1034 if (aq_ret) {
1035 dev_err(&pf->pdev->dev,
1036 "Unable to send the message to VF %d aq_err %d\n",
1037 vf->vf_id, pf->hw.aq.asq_last_status);
1038 return -EIO;
1039 }
1040
1041 return 0;
1042}
1043
1044/**
1045 * i40e_vc_send_resp_to_vf
1046 * @vf: pointer to the vf info
1047 * @opcode: operation code
1048 * @retval: return value
1049 *
1050 * send resp msg to vf
1051 **/
1052static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1053 enum i40e_virtchnl_ops opcode,
1054 i40e_status retval)
1055{
1056 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1057}
1058
1059/**
1060 * i40e_vc_get_version_msg
1061 * @vf: pointer to the vf info
1062 *
1063 * called from the vf to request the API version used by the PF
1064 **/
1065static int i40e_vc_get_version_msg(struct i40e_vf *vf)
1066{
1067 struct i40e_virtchnl_version_info info = {
1068 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1069 };
1070
1071 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1072 I40E_SUCCESS, (u8 *)&info,
1073 sizeof(struct
1074 i40e_virtchnl_version_info));
1075}
1076
1077/**
1078 * i40e_vc_get_vf_resources_msg
1079 * @vf: pointer to the vf info
1080 * @msg: pointer to the msg buffer
1081 * @msglen: msg length
1082 *
1083 * called from the vf to request its resources
1084 **/
1085static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf)
1086{
1087 struct i40e_virtchnl_vf_resource *vfres = NULL;
1088 struct i40e_pf *pf = vf->pf;
1089 i40e_status aq_ret = 0;
1090 struct i40e_vsi *vsi;
1091 int i = 0, len = 0;
1092 int num_vsis = 1;
1093 int ret;
1094
1095 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1096 aq_ret = I40E_ERR_PARAM;
1097 goto err;
1098 }
1099
1100 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1101 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1102
1103 vfres = kzalloc(len, GFP_KERNEL);
1104 if (!vfres) {
1105 aq_ret = I40E_ERR_NO_MEMORY;
1106 len = 0;
1107 goto err;
1108 }
1109
1110 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1111 vsi = pf->vsi[vf->lan_vsi_index];
1112 if (!vsi->info.pvid)
1113 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1114
1115 vfres->num_vsis = num_vsis;
1116 vfres->num_queue_pairs = vf->num_queue_pairs;
1117 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1118 if (vf->lan_vsi_index) {
1119 vfres->vsi_res[i].vsi_id = vf->lan_vsi_index;
1120 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1121 vfres->vsi_res[i].num_queue_pairs =
1122 pf->vsi[vf->lan_vsi_index]->num_queue_pairs;
1123 memcpy(vfres->vsi_res[i].default_mac_addr,
1124 vf->default_lan_addr.addr, ETH_ALEN);
1125 i++;
1126 }
1127 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1128
1129err:
1130 /* send the response back to the vf */
1131 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1132 aq_ret, (u8 *)vfres, len);
1133
1134 kfree(vfres);
1135 return ret;
1136}
1137
1138/**
1139 * i40e_vc_reset_vf_msg
1140 * @vf: pointer to the vf info
1141 * @msg: pointer to the msg buffer
1142 * @msglen: msg length
1143 *
1144 * called from the vf to reset itself,
1145 * unlike other virtchnl messages, pf driver
1146 * doesn't send the response back to the vf
1147 **/
fc18eaa0 1148static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
5c3c48ac 1149{
fc18eaa0
MW		 1150 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1151 i40e_reset_vf(vf, false);
5c3c48ac
JB		 1152}
1153
1154/**
1155 * i40e_vc_config_promiscuous_mode_msg
1156 * @vf: pointer to the vf info
1157 * @msg: pointer to the msg buffer
1158 * @msglen: msg length
1159 *
1160 * called from the vf to configure the promiscuous mode of
1161 * vf vsis
1162 **/
1163static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1164 u8 *msg, u16 msglen)
1165{
1166 struct i40e_virtchnl_promisc_info *info =
1167 (struct i40e_virtchnl_promisc_info *)msg;
1168 struct i40e_pf *pf = vf->pf;
1169 struct i40e_hw *hw = &pf->hw;
1170 bool allmulti = false;
1171 bool promisc = false;
1172 i40e_status aq_ret;
1173
1174 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1175 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1176 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1177 (pf->vsi[info->vsi_id]->type != I40E_VSI_FCOE)) {
1178 aq_ret = I40E_ERR_PARAM;
1179 goto error_param;
1180 }
1181
1182 if (info->flags & I40E_FLAG_VF_UNICAST_PROMISC)
1183 promisc = true;
1184 aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, info->vsi_id,
1185 promisc, NULL);
1186 if (aq_ret)
1187 goto error_param;
1188
1189 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1190 allmulti = true;
1191 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, info->vsi_id,
1192 allmulti, NULL);
1193
1194error_param:
1195 /* send the response to the vf */
1196 return i40e_vc_send_resp_to_vf(vf,
1197 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1198 aq_ret);
1199}
1200
1201/**
1202 * i40e_vc_config_queues_msg
1203 * @vf: pointer to the vf info
1204 * @msg: pointer to the msg buffer
1205 * @msglen: msg length
1206 *
1207 * called from the vf to configure the rx/tx
1208 * queues
1209 **/
1210static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1211{
1212 struct i40e_virtchnl_vsi_queue_config_info *qci =
1213 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1214 struct i40e_virtchnl_queue_pair_info *qpi;
1215 u16 vsi_id, vsi_queue_id;
1216 i40e_status aq_ret = 0;
1217 int i;
1218
1219 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1220 aq_ret = I40E_ERR_PARAM;
1221 goto error_param;
1222 }
1223
1224 vsi_id = qci->vsi_id;
1225 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1226 aq_ret = I40E_ERR_PARAM;
1227 goto error_param;
1228 }
1229 for (i = 0; i < qci->num_queue_pairs; i++) {
1230 qpi = &qci->qpair[i];
1231 vsi_queue_id = qpi->txq.queue_id;
1232 if ((qpi->txq.vsi_id != vsi_id) ||
1233 (qpi->rxq.vsi_id != vsi_id) ||
1234 (qpi->rxq.queue_id != vsi_queue_id) ||
1235 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1236 aq_ret = I40E_ERR_PARAM;
1237 goto error_param;
1238 }
1239
1240 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1241 &qpi->rxq) ||
1242 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1243 &qpi->txq)) {
1244 aq_ret = I40E_ERR_PARAM;
1245 goto error_param;
1246 }
1247 }
1248
1249error_param:
1250 /* send the response to the vf */
1251 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1252 aq_ret);
1253}
1254
1255/**
1256 * i40e_vc_config_irq_map_msg
1257 * @vf: pointer to the vf info
1258 * @msg: pointer to the msg buffer
1259 * @msglen: msg length
1260 *
1261 * called from the vf to configure the irq to
1262 * queue map
1263 **/
1264static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1265{
1266 struct i40e_virtchnl_irq_map_info *irqmap_info =
1267 (struct i40e_virtchnl_irq_map_info *)msg;
1268 struct i40e_virtchnl_vector_map *map;
1269 u16 vsi_id, vsi_queue_id, vector_id;
1270 i40e_status aq_ret = 0;
1271 unsigned long tempmap;
1272 int i;
1273
1274 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1275 aq_ret = I40E_ERR_PARAM;
1276 goto error_param;
1277 }
1278
1279 for (i = 0; i < irqmap_info->num_vectors; i++) {
1280 map = &irqmap_info->vecmap[i];
1281
1282 vector_id = map->vector_id;
1283 vsi_id = map->vsi_id;
1284 /* validate msg params */
1285 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1286 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1287 aq_ret = I40E_ERR_PARAM;
1288 goto error_param;
1289 }
1290
1291 /* lookout for the invalid queue index */
1292 tempmap = map->rxq_map;
4836650b 1293 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
5c3c48ac
JB		 1294 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1295 vsi_queue_id)) {
1296 aq_ret = I40E_ERR_PARAM;
1297 goto error_param;
1298 }
5c3c48ac
JB		 1299 }
1300
1301 tempmap = map->txq_map;
4836650b 1302 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
5c3c48ac
JB		 1303 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1304 vsi_queue_id)) {
1305 aq_ret = I40E_ERR_PARAM;
1306 goto error_param;
1307 }
5c3c48ac
JB		 1308 }
1309
1310 i40e_config_irq_link_list(vf, vsi_id, map);
1311 }
1312error_param:
1313 /* send the response to the vf */
1314 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1315 aq_ret);
1316}
1317
1318/**
1319 * i40e_vc_enable_queues_msg
1320 * @vf: pointer to the vf info
1321 * @msg: pointer to the msg buffer
1322 * @msglen: msg length
1323 *
1324 * called from the vf to enable all or specific queue(s)
1325 **/
1326static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1327{
1328 struct i40e_virtchnl_queue_select *vqs =
1329 (struct i40e_virtchnl_queue_select *)msg;
1330 struct i40e_pf *pf = vf->pf;
1331 u16 vsi_id = vqs->vsi_id;
1332 i40e_status aq_ret = 0;
5c3c48ac
JB		 1333
1334 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1335 aq_ret = I40E_ERR_PARAM;
1336 goto error_param;
1337 }
1338
1339 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1340 aq_ret = I40E_ERR_PARAM;
1341 goto error_param;
1342 }
1343
1344 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1345 aq_ret = I40E_ERR_PARAM;
1346 goto error_param;
1347 }
88f6563d
MW		 1348 if (i40e_vsi_control_rings(pf->vsi[vsi_id], true))
1349 aq_ret = I40E_ERR_TIMEOUT;
5c3c48ac
JB		 1350error_param:
1351 /* send the response to the vf */
1352 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1353 aq_ret);
1354}
1355
1356/**
1357 * i40e_vc_disable_queues_msg
1358 * @vf: pointer to the vf info
1359 * @msg: pointer to the msg buffer
1360 * @msglen: msg length
1361 *
1362 * called from the vf to disable all or specific
1363 * queue(s)
1364 **/
1365static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1366{
1367 struct i40e_virtchnl_queue_select *vqs =
1368 (struct i40e_virtchnl_queue_select *)msg;
1369 struct i40e_pf *pf = vf->pf;
1370 u16 vsi_id = vqs->vsi_id;
1371 i40e_status aq_ret = 0;
5c3c48ac
JB		 1372
1373 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1374 aq_ret = I40E_ERR_PARAM;
1375 goto error_param;
1376 }
1377
1378 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1379 aq_ret = I40E_ERR_PARAM;
1380 goto error_param;
1381 }
1382
1383 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1384 aq_ret = I40E_ERR_PARAM;
1385 goto error_param;
1386 }
88f6563d
MW		 1387 if (i40e_vsi_control_rings(pf->vsi[vsi_id], false))
1388 aq_ret = I40E_ERR_TIMEOUT;
5c3c48ac
JB		 1389
1390error_param:
1391 /* send the response to the vf */
1392 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1393 aq_ret);
1394}
1395
1396/**
1397 * i40e_vc_get_stats_msg
1398 * @vf: pointer to the vf info
1399 * @msg: pointer to the msg buffer
1400 * @msglen: msg length
1401 *
1402 * called from the vf to get vsi stats
1403 **/
1404static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1405{
1406 struct i40e_virtchnl_queue_select *vqs =
1407 (struct i40e_virtchnl_queue_select *)msg;
1408 struct i40e_pf *pf = vf->pf;
1409 struct i40e_eth_stats stats;
1410 i40e_status aq_ret = 0;
1411 struct i40e_vsi *vsi;
1412
1413 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1414
1415 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1416 aq_ret = I40E_ERR_PARAM;
1417 goto error_param;
1418 }
1419
1420 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1421 aq_ret = I40E_ERR_PARAM;
1422 goto error_param;
1423 }
1424
1425 vsi = pf->vsi[vqs->vsi_id];
1426 if (!vsi) {
1427 aq_ret = I40E_ERR_PARAM;
1428 goto error_param;
1429 }
1430 i40e_update_eth_stats(vsi);
5a9769c8 1431 stats = vsi->eth_stats;
5c3c48ac
JB		 1432
1433error_param:
1434 /* send the response back to the vf */
1435 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1436 (u8 *)&stats, sizeof(stats));
1437}
1438
f657a6e1
GR		 1439/**
1440 * i40e_check_vf_permission
1441 * @vf: pointer to the vf info
1442 * @macaddr: pointer to the MAC Address being checked
1443 *
1444 * Check if the VF has permission to add or delete unicast MAC address
1445 * filters and return error code -EPERM if not. Then check if the
1446 * address filter requested is broadcast or zero and if so return
1447 * an invalid MAC address error code.
1448 **/
1449static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1450{
1451 struct i40e_pf *pf = vf->pf;
1452 int ret = 0;
1453
1454 if (is_broadcast_ether_addr(macaddr) ||
1455 is_zero_ether_addr(macaddr)) {
1456 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1457 ret = I40E_ERR_INVALID_MAC_ADDR;
5017c2a8
GR		 1458 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1459 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
f657a6e1
GR		 1460 /* If the host VMM administrator has set the VF MAC address
1461 * administratively via the ndo_set_vf_mac command then deny
1462 * permission to the VF to add or delete unicast MAC addresses.
5017c2a8
GR		 1463 * The VF may request to set the MAC address filter already
1464 * assigned to it so do not return an error in that case.
f657a6e1
GR		 1465 */
1466 dev_err(&pf->pdev->dev,
1467 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
1468 ret = -EPERM;
1469 }
1470 return ret;
1471}
1472
5c3c48ac
JB		 1473/**
1474 * i40e_vc_add_mac_addr_msg
1475 * @vf: pointer to the vf info
1476 * @msg: pointer to the msg buffer
1477 * @msglen: msg length
1478 *
1479 * add guest mac address filter
1480 **/
1481static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1482{
1483 struct i40e_virtchnl_ether_addr_list *al =
1484 (struct i40e_virtchnl_ether_addr_list *)msg;
1485 struct i40e_pf *pf = vf->pf;
1486 struct i40e_vsi *vsi = NULL;
1487 u16 vsi_id = al->vsi_id;
f657a6e1 1488 i40e_status ret = 0;
5c3c48ac
JB		 1489 int i;
1490
1491 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1492 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1493 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
f657a6e1 1494 ret = I40E_ERR_PARAM;
5c3c48ac
JB		 1495 goto error_param;
1496 }
1497
1498 for (i = 0; i < al->num_elements; i++) {
f657a6e1
GR		 1499 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1500 if (ret)
5c3c48ac 1501 goto error_param;
5c3c48ac
JB		 1502 }
1503 vsi = pf->vsi[vsi_id];
1504
1505 /* add new addresses to the list */
1506 for (i = 0; i < al->num_elements; i++) {
1507 struct i40e_mac_filter *f;
1508
1509 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
7e68edf9 1510 if (!f) {
5c3c48ac
JB		 1511 if (i40e_is_vsi_in_vlan(vsi))
1512 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1513 true, false);
1514 else
1515 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1516 true, false);
1517 }
1518
1519 if (!f) {
1520 dev_err(&pf->pdev->dev,
1521 "Unable to add VF MAC filter\n");
f657a6e1 1522 ret = I40E_ERR_PARAM;
5c3c48ac
JB		 1523 goto error_param;
1524 }
1525 }
1526
1527 /* program the updated filter list */
1528 if (i40e_sync_vsi_filters(vsi))
1529 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1530
1531error_param:
1532 /* send the response to the vf */
1533 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
f657a6e1 1534 ret);
5c3c48ac
JB		 1535}
1536
1537/**
1538 * i40e_vc_del_mac_addr_msg
1539 * @vf: pointer to the vf info
1540 * @msg: pointer to the msg buffer
1541 * @msglen: msg length
1542 *
1543 * remove guest mac address filter
1544 **/
1545static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1546{
1547 struct i40e_virtchnl_ether_addr_list *al =
1548 (struct i40e_virtchnl_ether_addr_list *)msg;
1549 struct i40e_pf *pf = vf->pf;
1550 struct i40e_vsi *vsi = NULL;
1551 u16 vsi_id = al->vsi_id;
f657a6e1 1552 i40e_status ret = 0;
5c3c48ac
JB		 1553 int i;
1554
1555 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1556 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1557 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
f657a6e1 1558 ret = I40E_ERR_PARAM;
5c3c48ac
JB		 1559 goto error_param;
1560 }
f657a6e1
GR		 1561
1562 for (i = 0; i < al->num_elements; i++) {
700bbf6c
MW		 1563 if (is_broadcast_ether_addr(al->list[i].addr) ||
1564 is_zero_ether_addr(al->list[i].addr)) {
1565 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
1566 al->list[i].addr);
1567 ret = I40E_ERR_INVALID_MAC_ADDR;
f657a6e1 1568 goto error_param;
700bbf6c 1569 }
f657a6e1 1570 }
5c3c48ac
JB		 1571 vsi = pf->vsi[vsi_id];
1572
1573 /* delete addresses from the list */
1574 for (i = 0; i < al->num_elements; i++)
1575 i40e_del_filter(vsi, al->list[i].addr,
1576 I40E_VLAN_ANY, true, false);
1577
1578 /* program the updated filter list */
1579 if (i40e_sync_vsi_filters(vsi))
1580 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1581
1582error_param:
1583 /* send the response to the vf */
1584 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
f657a6e1 1585 ret);
5c3c48ac
JB		 1586}
1587
1588/**
1589 * i40e_vc_add_vlan_msg
1590 * @vf: pointer to the vf info
1591 * @msg: pointer to the msg buffer
1592 * @msglen: msg length
1593 *
1594 * program guest vlan id
1595 **/
1596static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1597{
1598 struct i40e_virtchnl_vlan_filter_list *vfl =
1599 (struct i40e_virtchnl_vlan_filter_list *)msg;
1600 struct i40e_pf *pf = vf->pf;
1601 struct i40e_vsi *vsi = NULL;
1602 u16 vsi_id = vfl->vsi_id;
1603 i40e_status aq_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 aq_ret = I40E_ERR_PARAM;
1610 goto error_param;
1611 }
1612
1613 for (i = 0; i < vfl->num_elements; i++) {
1614 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1615 aq_ret = I40E_ERR_PARAM;
1616 dev_err(&pf->pdev->dev,
1617 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1618 goto error_param;
1619 }
1620 }
1621 vsi = pf->vsi[vsi_id];
1622 if (vsi->info.pvid) {
1623 aq_ret = I40E_ERR_PARAM;
1624 goto error_param;
1625 }
1626
1627 i40e_vlan_stripping_enable(vsi);
1628 for (i = 0; i < vfl->num_elements; i++) {
1629 /* add new VLAN filter */
1630 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1631 if (ret)
1632 dev_err(&pf->pdev->dev,
1633 "Unable to add VF vlan filter %d, error %d\n",
1634 vfl->vlan_id[i], ret);
1635 }
1636
1637error_param:
1638 /* send the response to the vf */
1639 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1640}
1641
1642/**
1643 * i40e_vc_remove_vlan_msg
1644 * @vf: pointer to the vf info
1645 * @msg: pointer to the msg buffer
1646 * @msglen: msg length
1647 *
1648 * remove programmed guest vlan id
1649 **/
1650static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1651{
1652 struct i40e_virtchnl_vlan_filter_list *vfl =
1653 (struct i40e_virtchnl_vlan_filter_list *)msg;
1654 struct i40e_pf *pf = vf->pf;
1655 struct i40e_vsi *vsi = NULL;
1656 u16 vsi_id = vfl->vsi_id;
1657 i40e_status aq_ret = 0;
1658 int i;
1659
1660 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1661 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1662 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1663 aq_ret = I40E_ERR_PARAM;
1664 goto error_param;
1665 }
1666
1667 for (i = 0; i < vfl->num_elements; i++) {
1668 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1669 aq_ret = I40E_ERR_PARAM;
1670 goto error_param;
1671 }
1672 }
1673
1674 vsi = pf->vsi[vsi_id];
1675 if (vsi->info.pvid) {
1676 aq_ret = I40E_ERR_PARAM;
1677 goto error_param;
1678 }
1679
1680 for (i = 0; i < vfl->num_elements; i++) {
1681 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1682 if (ret)
1683 dev_err(&pf->pdev->dev,
1684 "Unable to delete VF vlan filter %d, error %d\n",
1685 vfl->vlan_id[i], ret);
1686 }
1687
1688error_param:
1689 /* send the response to the vf */
1690 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1691}
1692
5c3c48ac
JB		 1693/**
1694 * i40e_vc_validate_vf_msg
1695 * @vf: pointer to the vf info
1696 * @msg: pointer to the msg buffer
1697 * @msglen: msg length
1698 * @msghndl: msg handle
1699 *
1700 * validate msg
1701 **/
1702static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
1703 u32 v_retval, u8 *msg, u16 msglen)
1704{
1705 bool err_msg_format = false;
1706 int valid_len;
1707
1708 /* Check if VF is disabled. */
1709 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
1710 return I40E_ERR_PARAM;
1711
1712 /* Validate message length. */
1713 switch (v_opcode) {
1714 case I40E_VIRTCHNL_OP_VERSION:
1715 valid_len = sizeof(struct i40e_virtchnl_version_info);
1716 break;
1717 case I40E_VIRTCHNL_OP_RESET_VF:
1718 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1719 valid_len = 0;
1720 break;
1721 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
1722 valid_len = sizeof(struct i40e_virtchnl_txq_info);
1723 break;
1724 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
1725 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
1726 break;
1727 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1728 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
1729 if (msglen >= valid_len) {
1730 struct i40e_virtchnl_vsi_queue_config_info *vqc =
1731 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1732 valid_len += (vqc->num_queue_pairs *
1733 sizeof(struct
1734 i40e_virtchnl_queue_pair_info));
1735 if (vqc->num_queue_pairs == 0)
1736 err_msg_format = true;
1737 }
1738 break;
1739 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1740 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
1741 if (msglen >= valid_len) {
1742 struct i40e_virtchnl_irq_map_info *vimi =
1743 (struct i40e_virtchnl_irq_map_info *)msg;
1744 valid_len += (vimi->num_vectors *
1745 sizeof(struct i40e_virtchnl_vector_map));
1746 if (vimi->num_vectors == 0)
1747 err_msg_format = true;
1748 }
1749 break;
1750 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1751 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1752 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1753 break;
1754 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1755 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1756 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
1757 if (msglen >= valid_len) {
1758 struct i40e_virtchnl_ether_addr_list *veal =
1759 (struct i40e_virtchnl_ether_addr_list *)msg;
1760 valid_len += veal->num_elements *
1761 sizeof(struct i40e_virtchnl_ether_addr);
1762 if (veal->num_elements == 0)
1763 err_msg_format = true;
1764 }
1765 break;
1766 case I40E_VIRTCHNL_OP_ADD_VLAN:
1767 case I40E_VIRTCHNL_OP_DEL_VLAN:
1768 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
1769 if (msglen >= valid_len) {
1770 struct i40e_virtchnl_vlan_filter_list *vfl =
1771 (struct i40e_virtchnl_vlan_filter_list *)msg;
1772 valid_len += vfl->num_elements * sizeof(u16);
1773 if (vfl->num_elements == 0)
1774 err_msg_format = true;
1775 }
1776 break;
1777 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1778 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
1779 break;
1780 case I40E_VIRTCHNL_OP_GET_STATS:
1781 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1782 break;
1783 /* These are always errors coming from the VF. */
1784 case I40E_VIRTCHNL_OP_EVENT:
1785 case I40E_VIRTCHNL_OP_UNKNOWN:
1786 default:
1787 return -EPERM;
1788 break;
1789 }
1790 /* few more checks */
1791 if ((valid_len != msglen) || (err_msg_format)) {
1792 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
1793 return -EINVAL;
1794 } else {
1795 return 0;
1796 }
1797}
1798
1799/**
1800 * i40e_vc_process_vf_msg
1801 * @pf: pointer to the pf structure
1802 * @vf_id: source vf id
1803 * @msg: pointer to the msg buffer
1804 * @msglen: msg length
1805 * @msghndl: msg handle
1806 *
1807 * called from the common aeq/arq handler to
1808 * process request from vf
1809 **/
1810int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
1811 u32 v_retval, u8 *msg, u16 msglen)
1812{
5c3c48ac 1813 struct i40e_hw *hw = &pf->hw;
c243e963 1814 unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
6c1b5bff 1815 struct i40e_vf *vf;
5c3c48ac
JB		 1816 int ret;
1817
1818 pf->vf_aq_requests++;
7efa84b7 1819 if (local_vf_id >= pf->num_alloc_vfs)
6c1b5bff 1820 return -EINVAL;
7efa84b7 1821 vf = &(pf->vf[local_vf_id]);
5c3c48ac
JB		 1822 /* perform basic checks on the msg */
1823 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
1824
1825 if (ret) {
499ec80f 1826 dev_err(&pf->pdev->dev, "Invalid message from vf %d, opcode %d, len %d\n",
7efa84b7 1827 local_vf_id, v_opcode, msglen);
5c3c48ac
JB		 1828 return ret;
1829 }
bae3cae4 1830
5c3c48ac
JB		 1831 switch (v_opcode) {
1832 case I40E_VIRTCHNL_OP_VERSION:
1833 ret = i40e_vc_get_version_msg(vf);
1834 break;
1835 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1836 ret = i40e_vc_get_vf_resources_msg(vf);
1837 break;
1838 case I40E_VIRTCHNL_OP_RESET_VF:
fc18eaa0
MW		 1839 i40e_vc_reset_vf_msg(vf);
1840 ret = 0;
5c3c48ac
JB		 1841 break;
1842 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1843 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
1844 break;
1845 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1846 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
1847 break;
1848 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1849 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
1850 break;
1851 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1852 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
1853 break;
1854 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1855 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
1856 break;
1857 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1858 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
1859 break;
1860 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1861 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
1862 break;
1863 case I40E_VIRTCHNL_OP_ADD_VLAN:
1864 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
1865 break;
1866 case I40E_VIRTCHNL_OP_DEL_VLAN:
1867 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
1868 break;
1869 case I40E_VIRTCHNL_OP_GET_STATS:
1870 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
1871 break;
5c3c48ac
JB		 1872 case I40E_VIRTCHNL_OP_UNKNOWN:
1873 default:
7efa84b7
MW		 1874 dev_err(&pf->pdev->dev, "Unsupported opcode %d from vf %d\n",
1875 v_opcode, local_vf_id);
5c3c48ac
JB		 1876 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
1877 I40E_ERR_NOT_IMPLEMENTED);
1878 break;
1879 }
1880
1881 return ret;
1882}
1883
1884/**
1885 * i40e_vc_process_vflr_event
1886 * @pf: pointer to the pf structure
1887 *
1888 * called from the vlfr irq handler to
1889 * free up vf resources and state variables
1890 **/
1891int i40e_vc_process_vflr_event(struct i40e_pf *pf)
1892{
1893 u32 reg, reg_idx, bit_idx, vf_id;
1894 struct i40e_hw *hw = &pf->hw;
1895 struct i40e_vf *vf;
1896
1897 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
1898 return 0;
1899
1900 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
1901 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
1902 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1903 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1904 /* read GLGEN_VFLRSTAT register to find out the flr vfs */
1905 vf = &pf->vf[vf_id];
1906 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
1907 if (reg & (1 << bit_idx)) {
1908 /* clear the bit in GLGEN_VFLRSTAT */
1909 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
1910
eb2d80bc
MW		 1911 if (!test_bit(__I40E_DOWN, &pf->state))
1912 i40e_reset_vf(vf, true);
5c3c48ac
JB		 1913 }
1914 }
1915
1916 /* re-enable vflr interrupt cause */
1917 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
1918 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
1919 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
1920 i40e_flush(hw);
1921
1922 return 0;
1923}
1924
1925/**
1926 * i40e_vc_vf_broadcast
1927 * @pf: pointer to the pf structure
1928 * @opcode: operation code
1929 * @retval: return value
1930 * @msg: pointer to the msg buffer
1931 * @msglen: msg length
1932 *
1933 * send a message to all VFs on a given PF
1934 **/
1935static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
1936 enum i40e_virtchnl_ops v_opcode,
1937 i40e_status v_retval, u8 *msg,
1938 u16 msglen)
1939{
1940 struct i40e_hw *hw = &pf->hw;
1941 struct i40e_vf *vf = pf->vf;
1942 int i;
1943
1944 for (i = 0; i < pf->num_alloc_vfs; i++) {
1945 /* Ignore return value on purpose - a given VF may fail, but
1946 * we need to keep going and send to all of them
1947 */
1948 i40e_aq_send_msg_to_vf(hw, vf->vf_id, v_opcode, v_retval,
1949 msg, msglen, NULL);
1950 vf++;
1951 }
1952}
1953
1954/**
1955 * i40e_vc_notify_link_state
1956 * @pf: pointer to the pf structure
1957 *
1958 * send a link status message to all VFs on a given PF
1959 **/
1960void i40e_vc_notify_link_state(struct i40e_pf *pf)
1961{
1962 struct i40e_virtchnl_pf_event pfe;
588aefa0
MW		 1963 struct i40e_hw *hw = &pf->hw;
1964 struct i40e_vf *vf = pf->vf;
1965 struct i40e_link_status *ls = &pf->hw.phy.link_info;
1966 int i;
5c3c48ac
JB		 1967
1968 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
1969 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
588aefa0
MW		 1970 for (i = 0; i < pf->num_alloc_vfs; i++) {
1971 if (vf->link_forced) {
1972 pfe.event_data.link_event.link_status = vf->link_up;
1973 pfe.event_data.link_event.link_speed =
1974 (vf->link_up ? I40E_LINK_SPEED_40GB : 0);
1975 } else {
1976 pfe.event_data.link_event.link_status =
1977 ls->link_info & I40E_AQ_LINK_UP;
1978 pfe.event_data.link_event.link_speed = ls->link_speed;
1979 }
1980 i40e_aq_send_msg_to_vf(hw, vf->vf_id, I40E_VIRTCHNL_OP_EVENT,
1981 0, (u8 *)&pfe, sizeof(pfe),
1982 NULL);
1983 vf++;
1984 }
5c3c48ac
JB		 1985}
1986
1987/**
1988 * i40e_vc_notify_reset
1989 * @pf: pointer to the pf structure
1990 *
1991 * indicate a pending reset to all VFs on a given PF
1992 **/
1993void i40e_vc_notify_reset(struct i40e_pf *pf)
1994{
1995 struct i40e_virtchnl_pf_event pfe;
1996
1997 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
1998 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
1999 i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, I40E_SUCCESS,
2000 (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
2001}
2002
2003/**
2004 * i40e_vc_notify_vf_reset
2005 * @vf: pointer to the vf structure
2006 *
2007 * indicate a pending reset to the given VF
2008 **/
2009void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
2010{
2011 struct i40e_virtchnl_pf_event pfe;
2012
2013 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
2014 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
2015 i40e_aq_send_msg_to_vf(&vf->pf->hw, vf->vf_id, I40E_VIRTCHNL_OP_EVENT,
2016 I40E_SUCCESS, (u8 *)&pfe,
2017 sizeof(struct i40e_virtchnl_pf_event), NULL);
2018}
2019
2020/**
2021 * i40e_ndo_set_vf_mac
2022 * @netdev: network interface device structure
2023 * @vf_id: vf identifier
2024 * @mac: mac address
2025 *
2026 * program vf mac address
2027 **/
2028int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
2029{
2030 struct i40e_netdev_priv *np = netdev_priv(netdev);
2031 struct i40e_vsi *vsi = np->vsi;
2032 struct i40e_pf *pf = vsi->back;
2033 struct i40e_mac_filter *f;
2034 struct i40e_vf *vf;
2035 int ret = 0;
2036
2037 /* validate the request */
2038 if (vf_id >= pf->num_alloc_vfs) {
2039 dev_err(&pf->pdev->dev,
2040 "Invalid VF Identifier %d\n", vf_id);
2041 ret = -EINVAL;
2042 goto error_param;
2043 }
2044
2045 vf = &(pf->vf[vf_id]);
2046 vsi = pf->vsi[vf->lan_vsi_index];
2047 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2048 dev_err(&pf->pdev->dev,
2049 "Uninitialized VF %d\n", vf_id);
2050 ret = -EINVAL;
2051 goto error_param;
2052 }
2053
2054 if (!is_valid_ether_addr(mac)) {
2055 dev_err(&pf->pdev->dev,
2056 "Invalid VF ethernet address\n");
2057 ret = -EINVAL;
2058 goto error_param;
2059 }
2060
2061 /* delete the temporary mac address */
37cc0d2f
GR		 2062 i40e_del_filter(vsi, vf->default_lan_addr.addr, vf->port_vlan_id,
2063 true, false);
5c3c48ac
JB		 2064
2065 /* add the new mac address */
37cc0d2f 2066 f = i40e_add_filter(vsi, mac, vf->port_vlan_id, true, false);
5c3c48ac
JB		 2067 if (!f) {
2068 dev_err(&pf->pdev->dev,
2069 "Unable to add VF ucast filter\n");
2070 ret = -ENOMEM;
2071 goto error_param;
2072 }
2073
2074 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2075 /* program mac filter */
2076 if (i40e_sync_vsi_filters(vsi)) {
2077 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2078 ret = -EIO;
2079 goto error_param;
2080 }
2081 memcpy(vf->default_lan_addr.addr, mac, ETH_ALEN);
f657a6e1 2082 vf->pf_set_mac = true;
5c3c48ac
JB		 2083 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
2084 ret = 0;
2085
2086error_param:
2087 return ret;
2088}
2089
2090/**
2091 * i40e_ndo_set_vf_port_vlan
2092 * @netdev: network interface device structure
2093 * @vf_id: vf identifier
2094 * @vlan_id: mac address
2095 * @qos: priority setting
2096 *
2097 * program vf vlan id and/or qos
2098 **/
2099int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2100 int vf_id, u16 vlan_id, u8 qos)
2101{
2102 struct i40e_netdev_priv *np = netdev_priv(netdev);
2103 struct i40e_pf *pf = np->vsi->back;
2104 struct i40e_vsi *vsi;
2105 struct i40e_vf *vf;
2106 int ret = 0;
2107
2108 /* validate the request */
2109 if (vf_id >= pf->num_alloc_vfs) {
2110 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2111 ret = -EINVAL;
2112 goto error_pvid;
2113 }
2114
2115 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2116 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2117 ret = -EINVAL;
2118 goto error_pvid;
2119 }
2120
2121 vf = &(pf->vf[vf_id]);
2122 vsi = pf->vsi[vf->lan_vsi_index];
2123 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2124 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2125 ret = -EINVAL;
2126 goto error_pvid;
2127 }
2128
f9b4b627 2129 if (vsi->info.pvid == 0 && i40e_is_vsi_in_vlan(vsi)) {
99a4973c
GR		 2130 dev_err(&pf->pdev->dev,
2131 "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",
2132 vf_id);
f9b4b627
GR		 2133 /* Administrator Error - knock the VF offline until he does
2134 * the right thing by reconfiguring his network correctly
2135 * and then reloading the VF driver.
2136 */
2137 i40e_vc_disable_vf(pf, vf);
2138 }
99a4973c 2139
8d82a7c5
GR		 2140 /* Check for condition where there was already a port VLAN ID
2141 * filter set and now it is being deleted by setting it to zero.
1315f7c3
GR		 2142 * Additionally check for the condition where there was a port
2143 * VLAN but now there is a new and different port VLAN being set.
8d82a7c5
GR		 2144 * Before deleting all the old VLAN filters we must add new ones
2145 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2146 * MAC addresses deleted.
2147 */
1315f7c3
GR		 2148 if ((!(vlan_id || qos) ||
2149 (vlan_id | qos) != le16_to_cpu(vsi->info.pvid)) &&
2150 vsi->info.pvid)
8d82a7c5
GR		 2151 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
2152
5c3c48ac
JB		 2153 if (vsi->info.pvid) {
2154 /* kill old VLAN */
2155 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2156 VLAN_VID_MASK));
2157 if (ret) {
2158 dev_info(&vsi->back->pdev->dev,
2159 "remove VLAN failed, ret=%d, aq_err=%d\n",
2160 ret, pf->hw.aq.asq_last_status);
2161 }
2162 }
2163 if (vlan_id || qos)
2164 ret = i40e_vsi_add_pvid(vsi,
2165 vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT));
2166 else
6c12fcbf 2167 i40e_vsi_remove_pvid(vsi);
5c3c48ac
JB		 2168
2169 if (vlan_id) {
2170 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2171 vlan_id, qos, vf_id);
2172
2173 /* add new VLAN filter */
2174 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2175 if (ret) {
2176 dev_info(&vsi->back->pdev->dev,
2177 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2178 vsi->back->hw.aq.asq_last_status);
2179 goto error_pvid;
2180 }
8d82a7c5
GR		 2181 /* Kill non-vlan MAC filters - ignore error return since
2182 * there might not be any non-vlan MAC filters.
2183 */
2184 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
5c3c48ac
JB		 2185 }
2186
2187 if (ret) {
2188 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2189 goto error_pvid;
2190 }
6c12fcbf
GR		 2191 /* The Port VLAN needs to be saved across resets the same as the
2192 * default LAN MAC address.
2193 */
2194 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
5c3c48ac
JB		 2195 ret = 0;
2196
2197error_pvid:
2198 return ret;
2199}
2200
84590fd9
MW		 2201#define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
2202#define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
5c3c48ac
JB		 2203/**
2204 * i40e_ndo_set_vf_bw
2205 * @netdev: network interface device structure
2206 * @vf_id: vf identifier
2207 * @tx_rate: tx rate
2208 *
2209 * configure vf tx rate
2210 **/
ed616689
SC		 2211int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
2212 int max_tx_rate)
5c3c48ac 2213{
6b192891
MW		 2214 struct i40e_netdev_priv *np = netdev_priv(netdev);
2215 struct i40e_pf *pf = np->vsi->back;
2216 struct i40e_vsi *vsi;
2217 struct i40e_vf *vf;
2218 int speed = 0;
2219 int ret = 0;
2220
2221 /* validate the request */
2222 if (vf_id >= pf->num_alloc_vfs) {
2223 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
2224 ret = -EINVAL;
2225 goto error;
2226 }
2227
ed616689
SC		 2228 if (min_tx_rate) {
2229 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for vf %d.\n",
2230 min_tx_rate, vf_id);
2231 return -EINVAL;
2232 }
2233
6b192891
MW		 2234 vf = &(pf->vf[vf_id]);
2235 vsi = pf->vsi[vf->lan_vsi_index];
2236 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2237 dev_err(&pf->pdev->dev, "Uninitialized VF %d.\n", vf_id);
2238 ret = -EINVAL;
2239 goto error;
2240 }
2241
2242 switch (pf->hw.phy.link_info.link_speed) {
2243 case I40E_LINK_SPEED_40GB:
2244 speed = 40000;
2245 break;
2246 case I40E_LINK_SPEED_10GB:
2247 speed = 10000;
2248 break;
2249 case I40E_LINK_SPEED_1GB:
2250 speed = 1000;
2251 break;
2252 default:
2253 break;
2254 }
2255
ed616689
SC		 2256 if (max_tx_rate > speed) {
2257 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for vf %d.",
2258 max_tx_rate, vf->vf_id);
6b192891
MW		 2259 ret = -EINVAL;
2260 goto error;
2261 }
2262
dac9b31a
MW		 2263 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
2264 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
2265 max_tx_rate = 50;
2266 }
2267
6b192891 2268 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
84590fd9
MW		 2269 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
2270 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
2271 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
6b192891 2272 if (ret) {
ed616689 2273 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
6b192891
MW		 2274 ret);
2275 ret = -EIO;
2276 goto error;
2277 }
ed616689 2278 vf->tx_rate = max_tx_rate;
6b192891
MW		 2279error:
2280 return ret;
5c3c48ac
JB		 2281}
2282
2283/**
2284 * i40e_ndo_get_vf_config
2285 * @netdev: network interface device structure
2286 * @vf_id: vf identifier
2287 * @ivi: vf configuration structure
2288 *
2289 * return vf configuration
2290 **/
2291int i40e_ndo_get_vf_config(struct net_device *netdev,
2292 int vf_id, struct ifla_vf_info *ivi)
2293{
2294 struct i40e_netdev_priv *np = netdev_priv(netdev);
5c3c48ac
JB		 2295 struct i40e_vsi *vsi = np->vsi;
2296 struct i40e_pf *pf = vsi->back;
2297 struct i40e_vf *vf;
2298 int ret = 0;
2299
2300 /* validate the request */
2301 if (vf_id >= pf->num_alloc_vfs) {
2302 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2303 ret = -EINVAL;
2304 goto error_param;
2305 }
2306
2307 vf = &(pf->vf[vf_id]);
2308 /* first vsi is always the LAN vsi */
2309 vsi = pf->vsi[vf->lan_vsi_index];
2310 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2311 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2312 ret = -EINVAL;
2313 goto error_param;
2314 }
2315
2316 ivi->vf = vf_id;
2317
f4a1c5cf 2318 memcpy(&ivi->mac, vf->default_lan_addr.addr, ETH_ALEN);
5c3c48ac 2319
ed616689
SC		 2320 ivi->max_tx_rate = vf->tx_rate;
2321 ivi->min_tx_rate = 0;
5c3c48ac
JB		 2322 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2323 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2324 I40E_VLAN_PRIORITY_SHIFT;
84ca55a0
MW		 2325 if (vf->link_forced == false)
2326 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
2327 else if (vf->link_up == true)
2328 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
2329 else
2330 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
2331
5c3c48ac
JB		 2332 ret = 0;
2333
2334error_param:
2335 return ret;
2336}
588aefa0
MW		 2337
2338/**
2339 * i40e_ndo_set_vf_link_state
2340 * @netdev: network interface device structure
2341 * @vf_id: vf identifier
2342 * @link: required link state
2343 *
2344 * Set the link state of a specified VF, regardless of physical link state
2345 **/
2346int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
2347{
2348 struct i40e_netdev_priv *np = netdev_priv(netdev);
2349 struct i40e_pf *pf = np->vsi->back;
2350 struct i40e_virtchnl_pf_event pfe;
2351 struct i40e_hw *hw = &pf->hw;
2352 struct i40e_vf *vf;
2353 int ret = 0;
2354
2355 /* validate the request */
2356 if (vf_id >= pf->num_alloc_vfs) {
2357 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2358 ret = -EINVAL;
2359 goto error_out;
2360 }
2361
2362 vf = &pf->vf[vf_id];
2363
2364 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
2365 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
2366
2367 switch (link) {
2368 case IFLA_VF_LINK_STATE_AUTO:
2369 vf->link_forced = false;
2370 pfe.event_data.link_event.link_status =
2371 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
2372 pfe.event_data.link_event.link_speed =
2373 pf->hw.phy.link_info.link_speed;
2374 break;
2375 case IFLA_VF_LINK_STATE_ENABLE:
2376 vf->link_forced = true;
2377 vf->link_up = true;
2378 pfe.event_data.link_event.link_status = true;
2379 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
2380 break;
2381 case IFLA_VF_LINK_STATE_DISABLE:
2382 vf->link_forced = true;
2383 vf->link_up = false;
2384 pfe.event_data.link_event.link_status = false;
2385 pfe.event_data.link_event.link_speed = 0;
2386 break;
2387 default:
2388 ret = -EINVAL;
2389 goto error_out;
2390 }
2391 /* Notify the VF of its new link state */
2392 i40e_aq_send_msg_to_vf(hw, vf->vf_id, I40E_VIRTCHNL_OP_EVENT,
2393 0, (u8 *)&pfe, sizeof(pfe), NULL);
2394
2395error_out:
2396 return ret;
2397}
Linux kernel - Deliverables
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