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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
[mirror_ubuntu-artful-kernel.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
5f5e33b6 76 return qid < pf->vsi[vsi_id]->alloc_queue_pairs;
5c3c48ac
JB		 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;
5d29896a
AS		 251 tx_ctx.head_wb_ena = info->headwb_enabled;
252 tx_ctx.head_wb_addr = info->dma_headwb_addr;
5c3c48ac
JB		 253
254 /* clear the context in the HMC */
255 ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
256 if (ret) {
257 dev_err(&pf->pdev->dev,
258 "Failed to clear VF LAN Tx queue context %d, error: %d\n",
259 pf_queue_id, ret);
260 ret = -ENOENT;
261 goto error_context;
262 }
263
264 /* set the context in the HMC */
265 ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
266 if (ret) {
267 dev_err(&pf->pdev->dev,
268 "Failed to set VF LAN Tx queue context %d error: %d\n",
269 pf_queue_id, ret);
270 ret = -ENOENT;
271 goto error_context;
272 }
273
274 /* associate this queue with the PCI VF function */
275 qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
13fd9774 276 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
5c3c48ac
JB		 277 & I40E_QTX_CTL_PF_INDX_MASK);
278 qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
279 << I40E_QTX_CTL_VFVM_INDX_SHIFT)
280 & I40E_QTX_CTL_VFVM_INDX_MASK);
281 wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
282 i40e_flush(hw);
283
284error_context:
285 return ret;
286}
287
288/**
289 * i40e_config_vsi_rx_queue
290 * @vf: pointer to the vf info
291 * @vsi_idx: index of VSI in PF struct
292 * @vsi_queue_id: vsi relative queue index
293 * @info: config. info
294 *
295 * configure rx queue
296 **/
297static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_idx,
298 u16 vsi_queue_id,
299 struct i40e_virtchnl_rxq_info *info)
300{
301 struct i40e_pf *pf = vf->pf;
302 struct i40e_hw *hw = &pf->hw;
303 struct i40e_hmc_obj_rxq rx_ctx;
304 u16 pf_queue_id;
305 int ret = 0;
306
307 pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_idx, vsi_queue_id);
308
309 /* clear the context structure first */
310 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
311
312 /* only set the required fields */
313 rx_ctx.base = info->dma_ring_addr / 128;
314 rx_ctx.qlen = info->ring_len;
315
316 if (info->splithdr_enabled) {
317 rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 |
318 I40E_RX_SPLIT_IP |
319 I40E_RX_SPLIT_TCP_UDP |
320 I40E_RX_SPLIT_SCTP;
321 /* header length validation */
322 if (info->hdr_size > ((2 * 1024) - 64)) {
323 ret = -EINVAL;
324 goto error_param;
325 }
326 rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;
327
328 /* set splitalways mode 10b */
329 rx_ctx.dtype = 0x2;
330 }
331
332 /* databuffer length validation */
333 if (info->databuffer_size > ((16 * 1024) - 128)) {
334 ret = -EINVAL;
335 goto error_param;
336 }
337 rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;
338
339 /* max pkt. length validation */
340 if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
341 ret = -EINVAL;
342 goto error_param;
343 }
344 rx_ctx.rxmax = info->max_pkt_size;
345
346 /* enable 32bytes desc always */
347 rx_ctx.dsize = 1;
348
349 /* default values */
5c3c48ac
JB		 350 rx_ctx.lrxqthresh = 2;
351 rx_ctx.crcstrip = 1;
50d41659 352 rx_ctx.prefena = 1;
c1d11cef 353 rx_ctx.l2tsel = 1;
5c3c48ac
JB		 354
355 /* clear the context in the HMC */
356 ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
357 if (ret) {
358 dev_err(&pf->pdev->dev,
359 "Failed to clear VF LAN Rx queue context %d, error: %d\n",
360 pf_queue_id, ret);
361 ret = -ENOENT;
362 goto error_param;
363 }
364
365 /* set the context in the HMC */
366 ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
367 if (ret) {
368 dev_err(&pf->pdev->dev,
369 "Failed to set VF LAN Rx queue context %d error: %d\n",
370 pf_queue_id, ret);
371 ret = -ENOENT;
372 goto error_param;
373 }
374
375error_param:
376 return ret;
377}
378
379/**
380 * i40e_alloc_vsi_res
381 * @vf: pointer to the vf info
382 * @type: type of VSI to allocate
383 *
384 * alloc vf vsi context & resources
385 **/
386static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
387{
388 struct i40e_mac_filter *f = NULL;
389 struct i40e_pf *pf = vf->pf;
5c3c48ac
JB		 390 struct i40e_vsi *vsi;
391 int ret = 0;
392
393 vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);
394
395 if (!vsi) {
396 dev_err(&pf->pdev->dev,
397 "add vsi failed for vf %d, aq_err %d\n",
398 vf->vf_id, pf->hw.aq.asq_last_status);
399 ret = -ENOENT;
400 goto error_alloc_vsi_res;
401 }
402 if (type == I40E_VSI_SRIOV) {
1a10370a 403 u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
5c3c48ac
JB		 404 vf->lan_vsi_index = vsi->idx;
405 vf->lan_vsi_id = vsi->id;
406 dev_info(&pf->pdev->dev,
d4194996
MW		 407 "VF %d assigned LAN VSI index %d, VSI id %d\n",
408 vf->vf_id, vsi->idx, vsi->id);
6c12fcbf
GR		 409 /* If the port VLAN has been configured and then the
410 * VF driver was removed then the VSI port VLAN
411 * configuration was destroyed. Check if there is
412 * a port VLAN and restore the VSI configuration if
413 * needed.
414 */
415 if (vf->port_vlan_id)
416 i40e_vsi_add_pvid(vsi, vf->port_vlan_id);
5c3c48ac 417 f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
6c12fcbf 418 vf->port_vlan_id, true, false);
1a10370a
GR		 419 if (!f)
420 dev_info(&pf->pdev->dev,
421 "Could not allocate VF MAC addr\n");
422 f = i40e_add_filter(vsi, brdcast, vf->port_vlan_id,
423 true, false);
424 if (!f)
425 dev_info(&pf->pdev->dev,
426 "Could not allocate VF broadcast filter\n");
5c3c48ac 427 }
6dbbbfb2 428
5c3c48ac
JB		 429 /* program mac filter */
430 ret = i40e_sync_vsi_filters(vsi);
fd1646ee 431 if (ret)
5c3c48ac 432 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
5c3c48ac 433
6b192891
MW		 434 /* Set VF bandwidth if specified */
435 if (vf->tx_rate) {
436 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
437 vf->tx_rate / 50, 0, NULL);
438 if (ret)
439 dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
440 vf->vf_id, ret);
441 }
442
5c3c48ac
JB		 443error_alloc_vsi_res:
444 return ret;
445}
446
805bd5bd
MW		 447/**
448 * i40e_enable_vf_mappings
449 * @vf: pointer to the vf info
450 *
451 * enable vf mappings
452 **/
453static void i40e_enable_vf_mappings(struct i40e_vf *vf)
454{
455 struct i40e_pf *pf = vf->pf;
456 struct i40e_hw *hw = &pf->hw;
457 u32 reg, total_queue_pairs = 0;
458 int j;
459
460 /* Tell the hardware we're using noncontiguous mapping. HW requires
461 * that VF queues be mapped using this method, even when they are
462 * contiguous in real life
463 */
464 wr32(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
465 I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);
466
467 /* enable VF vplan_qtable mappings */
468 reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
469 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);
470
471 /* map PF queues to VF queues */
5f5e33b6 472 for (j = 0; j < pf->vsi[vf->lan_vsi_index]->alloc_queue_pairs; j++) {
805bd5bd
MW		 473 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index, j);
474 reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
475 wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
476 total_queue_pairs++;
477 }
478
479 /* map PF queues to VSI */
480 for (j = 0; j < 7; j++) {
5f5e33b6 481 if (j * 2 >= pf->vsi[vf->lan_vsi_index]->alloc_queue_pairs) {
805bd5bd
MW		 482 reg = 0x07FF07FF; /* unused */
483 } else {
484 u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index,
485 j * 2);
486 reg = qid;
487 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_index,
488 (j * 2) + 1);
489 reg |= qid << 16;
490 }
491 wr32(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), reg);
492 }
493
494 i40e_flush(hw);
495}
496
497/**
498 * i40e_disable_vf_mappings
499 * @vf: pointer to the vf info
500 *
501 * disable vf mappings
502 **/
503static void i40e_disable_vf_mappings(struct i40e_vf *vf)
504{
505 struct i40e_pf *pf = vf->pf;
506 struct i40e_hw *hw = &pf->hw;
507 int i;
508
509 /* disable qp mappings */
510 wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
511 for (i = 0; i < I40E_MAX_VSI_QP; i++)
512 wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
513 I40E_QUEUE_END_OF_LIST);
514 i40e_flush(hw);
515}
516
517/**
518 * i40e_free_vf_res
519 * @vf: pointer to the vf info
520 *
521 * free vf resources
522 **/
523static void i40e_free_vf_res(struct i40e_vf *vf)
524{
525 struct i40e_pf *pf = vf->pf;
fc18eaa0
MW		 526 struct i40e_hw *hw = &pf->hw;
527 u32 reg_idx, reg;
528 int i, msix_vf;
805bd5bd
MW		 529
530 /* free vsi & disconnect it from the parent uplink */
531 if (vf->lan_vsi_index) {
532 i40e_vsi_release(pf->vsi[vf->lan_vsi_index]);
533 vf->lan_vsi_index = 0;
534 vf->lan_vsi_id = 0;
535 }
9347eb77
MW		 536 msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
537
fc18eaa0
MW		 538 /* disable interrupts so the VF starts in a known state */
539 for (i = 0; i < msix_vf; i++) {
540 /* format is same for both registers */
541 if (0 == i)
542 reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
543 else
544 reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
545 (vf->vf_id))
546 + (i - 1));
547 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
548 i40e_flush(hw);
549 }
805bd5bd 550
fc18eaa0
MW		 551 /* clear the irq settings */
552 for (i = 0; i < msix_vf; i++) {
553 /* format is same for both registers */
554 if (0 == i)
555 reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
556 else
557 reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
558 (vf->vf_id))
559 + (i - 1));
560 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
561 I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
562 wr32(hw, reg_idx, reg);
563 i40e_flush(hw);
564 }
805bd5bd
MW		 565 /* reset some of the state varibles keeping
566 * track of the resources
567 */
568 vf->num_queue_pairs = 0;
569 vf->vf_states = 0;
570}
571
572/**
573 * i40e_alloc_vf_res
574 * @vf: pointer to the vf info
575 *
576 * allocate vf resources
577 **/
578static int i40e_alloc_vf_res(struct i40e_vf *vf)
579{
580 struct i40e_pf *pf = vf->pf;
581 int total_queue_pairs = 0;
582 int ret;
583
584 /* allocate hw vsi context & associated resources */
585 ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
586 if (ret)
587 goto error_alloc;
5f5e33b6 588 total_queue_pairs += pf->vsi[vf->lan_vsi_index]->alloc_queue_pairs;
805bd5bd
MW		 589 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
590
591 /* store the total qps number for the runtime
592 * vf req validation
593 */
594 vf->num_queue_pairs = total_queue_pairs;
595
596 /* vf is now completely initialized */
597 set_bit(I40E_VF_STAT_INIT, &vf->vf_states);
598
599error_alloc:
600 if (ret)
601 i40e_free_vf_res(vf);
602
603 return ret;
604}
605
fc18eaa0
MW		 606#define VF_DEVICE_STATUS 0xAA
607#define VF_TRANS_PENDING_MASK 0x20
608/**
609 * i40e_quiesce_vf_pci
610 * @vf: pointer to the vf structure
611 *
612 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
613 * if the transactions never clear.
614 **/
615static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
616{
617 struct i40e_pf *pf = vf->pf;
618 struct i40e_hw *hw = &pf->hw;
619 int vf_abs_id, i;
620 u32 reg;
621
b141d619 622 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
fc18eaa0
MW		 623
624 wr32(hw, I40E_PF_PCI_CIAA,
625 VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
626 for (i = 0; i < 100; i++) {
627 reg = rd32(hw, I40E_PF_PCI_CIAD);
628 if ((reg & VF_TRANS_PENDING_MASK) == 0)
629 return 0;
630 udelay(1);
631 }
632 return -EIO;
633}
634
5c3c48ac
JB		 635/**
636 * i40e_reset_vf
637 * @vf: pointer to the vf structure
638 * @flr: VFLR was issued or not
639 *
640 * reset the vf
641 **/
fc18eaa0 642void i40e_reset_vf(struct i40e_vf *vf, bool flr)
5c3c48ac 643{
5c3c48ac
JB		 644 struct i40e_pf *pf = vf->pf;
645 struct i40e_hw *hw = &pf->hw;
5c3c48ac 646 bool rsd = false;
fc18eaa0
MW		 647 int i;
648 u32 reg;
5c3c48ac
JB		 649
650 /* warn the VF */
5c3c48ac
JB		 651 clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
652
fc18eaa0
MW		 653 /* In the case of a VFLR, the HW has already reset the VF and we
654 * just need to clean up, so don't hit the VFRTRIG register.
5c3c48ac
JB		 655 */
656 if (!flr) {
657 /* reset vf using VPGEN_VFRTRIG reg */
fc18eaa0
MW		 658 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
659 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
5c3c48ac
JB		 660 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
661 i40e_flush(hw);
662 }
663
fc18eaa0
MW		 664 if (i40e_quiesce_vf_pci(vf))
665 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
666 vf->vf_id);
667
5c3c48ac
JB		 668 /* poll VPGEN_VFRSTAT reg to make sure
669 * that reset is complete
670 */
fc18eaa0 671 for (i = 0; i < 100; i++) {
5c3c48ac 672 /* vf reset requires driver to first reset the
84a9208d 673 * vf and then poll the status register to make sure
5c3c48ac
JB		 674 * that the requested op was completed
675 * successfully
676 */
677 udelay(10);
678 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
679 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
680 rsd = true;
681 break;
682 }
683 }
684
685 if (!rsd)
fc18eaa0 686 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
5c3c48ac 687 vf->vf_id);
fc18eaa0 688 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
5c3c48ac
JB		 689 /* clear the reset bit in the VPGEN_VFRTRIG reg */
690 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
691 reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
692 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
fc18eaa0
MW		 693
694 /* On initial reset, we won't have any queues */
695 if (vf->lan_vsi_index == 0)
696 goto complete_reset;
697
698 i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_index], false);
699complete_reset:
700 /* reallocate vf resources to reset the VSI state */
701 i40e_free_vf_res(vf);
fc18eaa0
MW		 702 i40e_alloc_vf_res(vf);
703 i40e_enable_vf_mappings(vf);
c17b362b 704 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
fc18eaa0 705
5c3c48ac 706 /* tell the VF the reset is done */
fc18eaa0 707 wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
5c3c48ac 708 i40e_flush(hw);
5c3c48ac 709}
c354229f
GR		 710#ifdef CONFIG_PCI_IOV
711
712/**
713 * i40e_enable_pf_switch_lb
714 * @pf: pointer to the pf structure
715 *
716 * enable switch loop back or die - no point in a return value
717 **/
718static void i40e_enable_pf_switch_lb(struct i40e_pf *pf)
719{
720 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
721 struct i40e_vsi_context ctxt;
722 int aq_ret;
723
724 ctxt.seid = pf->main_vsi_seid;
725 ctxt.pf_num = pf->hw.pf_id;
726 ctxt.vf_num = 0;
727 aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
728 if (aq_ret) {
729 dev_info(&pf->pdev->dev,
730 "%s couldn't get pf vsi config, err %d, aq_err %d\n",
731 __func__, aq_ret, pf->hw.aq.asq_last_status);
732 return;
733 }
734 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
735 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
736 ctxt.info.switch_id |= cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
737
738 aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
739 if (aq_ret) {
740 dev_info(&pf->pdev->dev,
741 "%s: update vsi switch failed, aq_err=%d\n",
742 __func__, vsi->back->hw.aq.asq_last_status);
743 }
744}
745#endif
746
747/**
748 * i40e_disable_pf_switch_lb
749 * @pf: pointer to the pf structure
750 *
751 * disable switch loop back or die - no point in a return value
752 **/
753static void i40e_disable_pf_switch_lb(struct i40e_pf *pf)
754{
755 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
756 struct i40e_vsi_context ctxt;
757 int aq_ret;
758
759 ctxt.seid = pf->main_vsi_seid;
760 ctxt.pf_num = pf->hw.pf_id;
761 ctxt.vf_num = 0;
762 aq_ret = i40e_aq_get_vsi_params(&pf->hw, &ctxt, NULL);
763 if (aq_ret) {
764 dev_info(&pf->pdev->dev,
765 "%s couldn't get pf vsi config, err %d, aq_err %d\n",
766 __func__, aq_ret, pf->hw.aq.asq_last_status);
767 return;
768 }
769 ctxt.flags = I40E_AQ_VSI_TYPE_PF;
770 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SWITCH_VALID);
771 ctxt.info.switch_id &= ~cpu_to_le16(I40E_AQ_VSI_SW_ID_FLAG_ALLOW_LB);
772
773 aq_ret = i40e_aq_update_vsi_params(&vsi->back->hw, &ctxt, NULL);
774 if (aq_ret) {
775 dev_info(&pf->pdev->dev,
776 "%s: update vsi switch failed, aq_err=%d\n",
777 __func__, vsi->back->hw.aq.asq_last_status);
778 }
779}
5c3c48ac
JB		 780
781/**
782 * i40e_free_vfs
783 * @pf: pointer to the pf structure
784 *
785 * free vf resources
786 **/
787void i40e_free_vfs(struct i40e_pf *pf)
788{
f7414531
MW		 789 struct i40e_hw *hw = &pf->hw;
790 u32 reg_idx, bit_idx;
791 int i, tmp, vf_id;
5c3c48ac
JB		 792
793 if (!pf->vf)
794 return;
795
796 /* Disable interrupt 0 so we don't try to handle the VFLR. */
2ef28cfb
MW		 797 i40e_irq_dynamic_disable_icr0(pf);
798
6c1b5bff 799 mdelay(10); /* let any messages in transit get finished up */
5c3c48ac 800 /* free up vf resources */
6c1b5bff
MW		 801 tmp = pf->num_alloc_vfs;
802 pf->num_alloc_vfs = 0;
803 for (i = 0; i < tmp; i++) {
5c3c48ac
JB		 804 if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
805 i40e_free_vf_res(&pf->vf[i]);
806 /* disable qp mappings */
807 i40e_disable_vf_mappings(&pf->vf[i]);
808 }
809
810 kfree(pf->vf);
811 pf->vf = NULL;
5c3c48ac 812
9e5634df
MW		 813 /* This check is for when the driver is unloaded while VFs are
814 * assigned. Setting the number of VFs to 0 through sysfs is caught
815 * before this function ever gets called.
816 */
c24817b6 817 if (!pci_vfs_assigned(pf->pdev)) {
5c3c48ac 818 pci_disable_sriov(pf->pdev);
f7414531
MW		 819 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
820 * work correctly when SR-IOV gets re-enabled.
821 */
822 for (vf_id = 0; vf_id < tmp; vf_id++) {
823 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
824 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
825 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
826 }
c354229f
GR		 827 i40e_disable_pf_switch_lb(pf);
828 } else {
5c3c48ac
JB		 829 dev_warn(&pf->pdev->dev,
830 "unable to disable SR-IOV because VFs are assigned.\n");
c354229f 831 }
5c3c48ac
JB		 832
833 /* Re-enable interrupt 0. */
2ef28cfb 834 i40e_irq_dynamic_enable_icr0(pf);
5c3c48ac
JB		 835}
836
837#ifdef CONFIG_PCI_IOV
838/**
839 * i40e_alloc_vfs
840 * @pf: pointer to the pf structure
841 * @num_alloc_vfs: number of vfs to allocate
842 *
843 * allocate vf resources
844 **/
4aeec010 845int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
5c3c48ac
JB		 846{
847 struct i40e_vf *vfs;
848 int i, ret = 0;
849
6c1b5bff 850 /* Disable interrupt 0 so we don't try to handle the VFLR. */
2ef28cfb
MW		 851 i40e_irq_dynamic_disable_icr0(pf);
852
4aeec010
MW		 853 /* Check to see if we're just allocating resources for extant VFs */
854 if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
855 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
856 if (ret) {
857 dev_err(&pf->pdev->dev,
858 "Failed to enable SR-IOV, error %d.\n", ret);
859 pf->num_alloc_vfs = 0;
860 goto err_iov;
861 }
5c3c48ac 862 }
5c3c48ac 863 /* allocate memory */
cc6456af 864 vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
5c3c48ac
JB		 865 if (!vfs) {
866 ret = -ENOMEM;
867 goto err_alloc;
868 }
c674d125 869 pf->vf = vfs;
5c3c48ac
JB		 870
871 /* apply default profile */
872 for (i = 0; i < num_alloc_vfs; i++) {
873 vfs[i].pf = pf;
874 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
875 vfs[i].vf_id = i;
876
877 /* assign default capabilities */
878 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
c674d125 879 vfs[i].spoofchk = true;
fc18eaa0
MW		 880 /* vf resources get allocated during reset */
881 i40e_reset_vf(&vfs[i], false);
5c3c48ac
JB		 882
883 /* enable vf vplan_qtable mappings */
884 i40e_enable_vf_mappings(&vfs[i]);
885 }
5c3c48ac
JB		 886 pf->num_alloc_vfs = num_alloc_vfs;
887
c354229f 888 i40e_enable_pf_switch_lb(pf);
5c3c48ac
JB		 889err_alloc:
890 if (ret)
891 i40e_free_vfs(pf);
892err_iov:
6c1b5bff 893 /* Re-enable interrupt 0. */
2ef28cfb 894 i40e_irq_dynamic_enable_icr0(pf);
5c3c48ac
JB		 895 return ret;
896}
897
898#endif
899/**
900 * i40e_pci_sriov_enable
901 * @pdev: pointer to a pci_dev structure
902 * @num_vfs: number of vfs to allocate
903 *
904 * Enable or change the number of VFs
905 **/
906static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
907{
908#ifdef CONFIG_PCI_IOV
909 struct i40e_pf *pf = pci_get_drvdata(pdev);
910 int pre_existing_vfs = pci_num_vf(pdev);
911 int err = 0;
912
913 dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
914 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
915 i40e_free_vfs(pf);
916 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
917 goto out;
918
919 if (num_vfs > pf->num_req_vfs) {
920 err = -EPERM;
921 goto err_out;
922 }
923
924 err = i40e_alloc_vfs(pf, num_vfs);
925 if (err) {
926 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
927 goto err_out;
928 }
929
930out:
931 return num_vfs;
932
933err_out:
934 return err;
935#endif
936 return 0;
937}
938
939/**
940 * i40e_pci_sriov_configure
941 * @pdev: pointer to a pci_dev structure
942 * @num_vfs: number of vfs to allocate
943 *
944 * Enable or change the number of VFs. Called when the user updates the number
945 * of VFs in sysfs.
946 **/
947int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
948{
949 struct i40e_pf *pf = pci_get_drvdata(pdev);
950
951 if (num_vfs)
952 return i40e_pci_sriov_enable(pdev, num_vfs);
953
c24817b6 954 if (!pci_vfs_assigned(pf->pdev)) {
9e5634df
MW		 955 i40e_free_vfs(pf);
956 } else {
957 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
958 return -EINVAL;
959 }
5c3c48ac
JB		 960 return 0;
961}
962
963/***********************virtual channel routines******************/
964
965/**
966 * i40e_vc_send_msg_to_vf
967 * @vf: pointer to the vf info
968 * @v_opcode: virtual channel opcode
969 * @v_retval: virtual channel return value
970 * @msg: pointer to the msg buffer
971 * @msglen: msg length
972 *
973 * send msg to vf
974 **/
975static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
976 u32 v_retval, u8 *msg, u16 msglen)
977{
6e7b5bd3
ASJ		 978 struct i40e_pf *pf;
979 struct i40e_hw *hw;
980 int abs_vf_id;
5c3c48ac
JB		 981 i40e_status aq_ret;
982
6e7b5bd3
ASJ		 983 /* validate the request */
984 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
985 return -EINVAL;
986
987 pf = vf->pf;
988 hw = &pf->hw;
989 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
990
5c3c48ac
JB		 991 /* single place to detect unsuccessful return values */
992 if (v_retval) {
993 vf->num_invalid_msgs++;
994 dev_err(&pf->pdev->dev, "Failed opcode %d Error: %d\n",
995 v_opcode, v_retval);
996 if (vf->num_invalid_msgs >
997 I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
998 dev_err(&pf->pdev->dev,
999 "Number of invalid messages exceeded for VF %d\n",
1000 vf->vf_id);
1001 dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1002 set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
1003 }
1004 } else {
1005 vf->num_valid_msgs++;
1006 }
1007
f19efbb5 1008 aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
7efa84b7 1009 msg, msglen, NULL);
5c3c48ac
JB		 1010 if (aq_ret) {
1011 dev_err(&pf->pdev->dev,
1012 "Unable to send the message to VF %d aq_err %d\n",
1013 vf->vf_id, pf->hw.aq.asq_last_status);
1014 return -EIO;
1015 }
1016
1017 return 0;
1018}
1019
1020/**
1021 * i40e_vc_send_resp_to_vf
1022 * @vf: pointer to the vf info
1023 * @opcode: operation code
1024 * @retval: return value
1025 *
1026 * send resp msg to vf
1027 **/
1028static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1029 enum i40e_virtchnl_ops opcode,
1030 i40e_status retval)
1031{
1032 return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1033}
1034
1035/**
1036 * i40e_vc_get_version_msg
1037 * @vf: pointer to the vf info
1038 *
1039 * called from the vf to request the API version used by the PF
1040 **/
1041static int i40e_vc_get_version_msg(struct i40e_vf *vf)
1042{
1043 struct i40e_virtchnl_version_info info = {
1044 I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
1045 };
1046
1047 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
1048 I40E_SUCCESS, (u8 *)&info,
1049 sizeof(struct
1050 i40e_virtchnl_version_info));
1051}
1052
1053/**
1054 * i40e_vc_get_vf_resources_msg
1055 * @vf: pointer to the vf info
1056 * @msg: pointer to the msg buffer
1057 * @msglen: msg length
1058 *
1059 * called from the vf to request its resources
1060 **/
1061static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf)
1062{
1063 struct i40e_virtchnl_vf_resource *vfres = NULL;
1064 struct i40e_pf *pf = vf->pf;
1065 i40e_status aq_ret = 0;
1066 struct i40e_vsi *vsi;
1067 int i = 0, len = 0;
1068 int num_vsis = 1;
1069 int ret;
1070
1071 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
1072 aq_ret = I40E_ERR_PARAM;
1073 goto err;
1074 }
1075
1076 len = (sizeof(struct i40e_virtchnl_vf_resource) +
1077 sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);
1078
1079 vfres = kzalloc(len, GFP_KERNEL);
1080 if (!vfres) {
1081 aq_ret = I40E_ERR_NO_MEMORY;
1082 len = 0;
1083 goto err;
1084 }
1085
1086 vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
1087 vsi = pf->vsi[vf->lan_vsi_index];
1088 if (!vsi->info.pvid)
1089 vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
1090
1091 vfres->num_vsis = num_vsis;
1092 vfres->num_queue_pairs = vf->num_queue_pairs;
1093 vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1094 if (vf->lan_vsi_index) {
1095 vfres->vsi_res[i].vsi_id = vf->lan_vsi_index;
1096 vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
1097 vfres->vsi_res[i].num_queue_pairs =
5f5e33b6 1098 pf->vsi[vf->lan_vsi_index]->alloc_queue_pairs;
5c3c48ac
JB		 1099 memcpy(vfres->vsi_res[i].default_mac_addr,
1100 vf->default_lan_addr.addr, ETH_ALEN);
1101 i++;
1102 }
1103 set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
1104
1105err:
1106 /* send the response back to the vf */
1107 ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
1108 aq_ret, (u8 *)vfres, len);
1109
1110 kfree(vfres);
1111 return ret;
1112}
1113
1114/**
1115 * i40e_vc_reset_vf_msg
1116 * @vf: pointer to the vf info
1117 * @msg: pointer to the msg buffer
1118 * @msglen: msg length
1119 *
1120 * called from the vf to reset itself,
1121 * unlike other virtchnl messages, pf driver
1122 * doesn't send the response back to the vf
1123 **/
fc18eaa0 1124static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
5c3c48ac 1125{
fc18eaa0
MW		 1126 if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1127 i40e_reset_vf(vf, false);
5c3c48ac
JB		 1128}
1129
1130/**
1131 * i40e_vc_config_promiscuous_mode_msg
1132 * @vf: pointer to the vf info
1133 * @msg: pointer to the msg buffer
1134 * @msglen: msg length
1135 *
1136 * called from the vf to configure the promiscuous mode of
1137 * vf vsis
1138 **/
1139static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
1140 u8 *msg, u16 msglen)
1141{
1142 struct i40e_virtchnl_promisc_info *info =
1143 (struct i40e_virtchnl_promisc_info *)msg;
1144 struct i40e_pf *pf = vf->pf;
1145 struct i40e_hw *hw = &pf->hw;
89cb86c3 1146 struct i40e_vsi *vsi;
5c3c48ac 1147 bool allmulti = false;
5c3c48ac
JB		 1148 i40e_status aq_ret;
1149
1150 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1151 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1152 !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
1153 (pf->vsi[info->vsi_id]->type != I40E_VSI_FCOE)) {
1154 aq_ret = I40E_ERR_PARAM;
1155 goto error_param;
1156 }
89cb86c3 1157 vsi = pf->vsi[info->vsi_id];
5c3c48ac
JB		 1158 if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
1159 allmulti = true;
89cb86c3 1160 aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
5c3c48ac
JB		 1161 allmulti, NULL);
1162
1163error_param:
1164 /* send the response to the vf */
1165 return i40e_vc_send_resp_to_vf(vf,
1166 I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1167 aq_ret);
1168}
1169
1170/**
1171 * i40e_vc_config_queues_msg
1172 * @vf: pointer to the vf info
1173 * @msg: pointer to the msg buffer
1174 * @msglen: msg length
1175 *
1176 * called from the vf to configure the rx/tx
1177 * queues
1178 **/
1179static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1180{
1181 struct i40e_virtchnl_vsi_queue_config_info *qci =
1182 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1183 struct i40e_virtchnl_queue_pair_info *qpi;
5f5e33b6 1184 struct i40e_pf *pf = vf->pf;
5c3c48ac
JB		 1185 u16 vsi_id, vsi_queue_id;
1186 i40e_status aq_ret = 0;
1187 int i;
1188
1189 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1190 aq_ret = I40E_ERR_PARAM;
1191 goto error_param;
1192 }
1193
1194 vsi_id = qci->vsi_id;
1195 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1196 aq_ret = I40E_ERR_PARAM;
1197 goto error_param;
1198 }
1199 for (i = 0; i < qci->num_queue_pairs; i++) {
1200 qpi = &qci->qpair[i];
1201 vsi_queue_id = qpi->txq.queue_id;
1202 if ((qpi->txq.vsi_id != vsi_id) ||
1203 (qpi->rxq.vsi_id != vsi_id) ||
1204 (qpi->rxq.queue_id != vsi_queue_id) ||
1205 !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
1206 aq_ret = I40E_ERR_PARAM;
1207 goto error_param;
1208 }
1209
1210 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
1211 &qpi->rxq) ||
1212 i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
1213 &qpi->txq)) {
1214 aq_ret = I40E_ERR_PARAM;
1215 goto error_param;
1216 }
1217 }
5f5e33b6
AS		 1218 /* set vsi num_queue_pairs in use to num configured by vf */
1219 pf->vsi[vf->lan_vsi_index]->num_queue_pairs = qci->num_queue_pairs;
5c3c48ac
JB		 1220
1221error_param:
1222 /* send the response to the vf */
1223 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1224 aq_ret);
1225}
1226
1227/**
1228 * i40e_vc_config_irq_map_msg
1229 * @vf: pointer to the vf info
1230 * @msg: pointer to the msg buffer
1231 * @msglen: msg length
1232 *
1233 * called from the vf to configure the irq to
1234 * queue map
1235 **/
1236static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1237{
1238 struct i40e_virtchnl_irq_map_info *irqmap_info =
1239 (struct i40e_virtchnl_irq_map_info *)msg;
1240 struct i40e_virtchnl_vector_map *map;
1241 u16 vsi_id, vsi_queue_id, vector_id;
1242 i40e_status aq_ret = 0;
1243 unsigned long tempmap;
1244 int i;
1245
1246 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1247 aq_ret = I40E_ERR_PARAM;
1248 goto error_param;
1249 }
1250
1251 for (i = 0; i < irqmap_info->num_vectors; i++) {
1252 map = &irqmap_info->vecmap[i];
1253
1254 vector_id = map->vector_id;
1255 vsi_id = map->vsi_id;
1256 /* validate msg params */
1257 if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
1258 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1259 aq_ret = I40E_ERR_PARAM;
1260 goto error_param;
1261 }
1262
1263 /* lookout for the invalid queue index */
1264 tempmap = map->rxq_map;
4836650b 1265 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
5c3c48ac
JB		 1266 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1267 vsi_queue_id)) {
1268 aq_ret = I40E_ERR_PARAM;
1269 goto error_param;
1270 }
5c3c48ac
JB		 1271 }
1272
1273 tempmap = map->txq_map;
4836650b 1274 for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
5c3c48ac
JB		 1275 if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
1276 vsi_queue_id)) {
1277 aq_ret = I40E_ERR_PARAM;
1278 goto error_param;
1279 }
5c3c48ac
JB		 1280 }
1281
1282 i40e_config_irq_link_list(vf, vsi_id, map);
1283 }
1284error_param:
1285 /* send the response to the vf */
1286 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
1287 aq_ret);
1288}
1289
1290/**
1291 * i40e_vc_enable_queues_msg
1292 * @vf: pointer to the vf info
1293 * @msg: pointer to the msg buffer
1294 * @msglen: msg length
1295 *
1296 * called from the vf to enable all or specific queue(s)
1297 **/
1298static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1299{
1300 struct i40e_virtchnl_queue_select *vqs =
1301 (struct i40e_virtchnl_queue_select *)msg;
1302 struct i40e_pf *pf = vf->pf;
1303 u16 vsi_id = vqs->vsi_id;
1304 i40e_status aq_ret = 0;
5c3c48ac
JB		 1305
1306 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1307 aq_ret = I40E_ERR_PARAM;
1308 goto error_param;
1309 }
1310
1311 if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1312 aq_ret = I40E_ERR_PARAM;
1313 goto error_param;
1314 }
1315
1316 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1317 aq_ret = I40E_ERR_PARAM;
1318 goto error_param;
1319 }
88f6563d
MW		 1320 if (i40e_vsi_control_rings(pf->vsi[vsi_id], true))
1321 aq_ret = I40E_ERR_TIMEOUT;
5c3c48ac
JB		 1322error_param:
1323 /* send the response to the vf */
1324 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
1325 aq_ret);
1326}
1327
1328/**
1329 * i40e_vc_disable_queues_msg
1330 * @vf: pointer to the vf info
1331 * @msg: pointer to the msg buffer
1332 * @msglen: msg length
1333 *
1334 * called from the vf to disable all or specific
1335 * queue(s)
1336 **/
1337static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1338{
1339 struct i40e_virtchnl_queue_select *vqs =
1340 (struct i40e_virtchnl_queue_select *)msg;
1341 struct i40e_pf *pf = vf->pf;
1342 u16 vsi_id = vqs->vsi_id;
1343 i40e_status aq_ret = 0;
5c3c48ac
JB		 1344
1345 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1346 aq_ret = I40E_ERR_PARAM;
1347 goto error_param;
1348 }
1349
1350 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1351 aq_ret = I40E_ERR_PARAM;
1352 goto error_param;
1353 }
1354
1355 if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
1356 aq_ret = I40E_ERR_PARAM;
1357 goto error_param;
1358 }
88f6563d
MW		 1359 if (i40e_vsi_control_rings(pf->vsi[vsi_id], false))
1360 aq_ret = I40E_ERR_TIMEOUT;
5c3c48ac
JB		 1361
1362error_param:
1363 /* send the response to the vf */
1364 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
1365 aq_ret);
1366}
1367
1368/**
1369 * i40e_vc_get_stats_msg
1370 * @vf: pointer to the vf info
1371 * @msg: pointer to the msg buffer
1372 * @msglen: msg length
1373 *
1374 * called from the vf to get vsi stats
1375 **/
1376static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1377{
1378 struct i40e_virtchnl_queue_select *vqs =
1379 (struct i40e_virtchnl_queue_select *)msg;
1380 struct i40e_pf *pf = vf->pf;
1381 struct i40e_eth_stats stats;
1382 i40e_status aq_ret = 0;
1383 struct i40e_vsi *vsi;
1384
1385 memset(&stats, 0, sizeof(struct i40e_eth_stats));
1386
1387 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
1388 aq_ret = I40E_ERR_PARAM;
1389 goto error_param;
1390 }
1391
1392 if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1393 aq_ret = I40E_ERR_PARAM;
1394 goto error_param;
1395 }
1396
1397 vsi = pf->vsi[vqs->vsi_id];
1398 if (!vsi) {
1399 aq_ret = I40E_ERR_PARAM;
1400 goto error_param;
1401 }
1402 i40e_update_eth_stats(vsi);
5a9769c8 1403 stats = vsi->eth_stats;
5c3c48ac
JB		 1404
1405error_param:
1406 /* send the response back to the vf */
1407 return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
1408 (u8 *)&stats, sizeof(stats));
1409}
1410
f657a6e1
GR		 1411/**
1412 * i40e_check_vf_permission
1413 * @vf: pointer to the vf info
1414 * @macaddr: pointer to the MAC Address being checked
1415 *
1416 * Check if the VF has permission to add or delete unicast MAC address
1417 * filters and return error code -EPERM if not. Then check if the
1418 * address filter requested is broadcast or zero and if so return
1419 * an invalid MAC address error code.
1420 **/
1421static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
1422{
1423 struct i40e_pf *pf = vf->pf;
1424 int ret = 0;
1425
1426 if (is_broadcast_ether_addr(macaddr) ||
1427 is_zero_ether_addr(macaddr)) {
1428 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
1429 ret = I40E_ERR_INVALID_MAC_ADDR;
5017c2a8
GR		 1430 } else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
1431 !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
f657a6e1
GR		 1432 /* If the host VMM administrator has set the VF MAC address
1433 * administratively via the ndo_set_vf_mac command then deny
1434 * permission to the VF to add or delete unicast MAC addresses.
5017c2a8
GR		 1435 * The VF may request to set the MAC address filter already
1436 * assigned to it so do not return an error in that case.
f657a6e1
GR		 1437 */
1438 dev_err(&pf->pdev->dev,
1439 "VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
1440 ret = -EPERM;
1441 }
1442 return ret;
1443}
1444
5c3c48ac
JB		 1445/**
1446 * i40e_vc_add_mac_addr_msg
1447 * @vf: pointer to the vf info
1448 * @msg: pointer to the msg buffer
1449 * @msglen: msg length
1450 *
1451 * add guest mac address filter
1452 **/
1453static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1454{
1455 struct i40e_virtchnl_ether_addr_list *al =
1456 (struct i40e_virtchnl_ether_addr_list *)msg;
1457 struct i40e_pf *pf = vf->pf;
1458 struct i40e_vsi *vsi = NULL;
1459 u16 vsi_id = al->vsi_id;
f657a6e1 1460 i40e_status ret = 0;
5c3c48ac
JB		 1461 int i;
1462
1463 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1464 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1465 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
f657a6e1 1466 ret = I40E_ERR_PARAM;
5c3c48ac
JB		 1467 goto error_param;
1468 }
1469
1470 for (i = 0; i < al->num_elements; i++) {
f657a6e1
GR		 1471 ret = i40e_check_vf_permission(vf, al->list[i].addr);
1472 if (ret)
5c3c48ac 1473 goto error_param;
5c3c48ac
JB		 1474 }
1475 vsi = pf->vsi[vsi_id];
1476
1477 /* add new addresses to the list */
1478 for (i = 0; i < al->num_elements; i++) {
1479 struct i40e_mac_filter *f;
1480
1481 f = i40e_find_mac(vsi, al->list[i].addr, true, false);
7e68edf9 1482 if (!f) {
5c3c48ac
JB		 1483 if (i40e_is_vsi_in_vlan(vsi))
1484 f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
1485 true, false);
1486 else
1487 f = i40e_add_filter(vsi, al->list[i].addr, -1,
1488 true, false);
1489 }
1490
1491 if (!f) {
1492 dev_err(&pf->pdev->dev,
1493 "Unable to add VF MAC filter\n");
f657a6e1 1494 ret = I40E_ERR_PARAM;
5c3c48ac
JB		 1495 goto error_param;
1496 }
1497 }
1498
1499 /* program the updated filter list */
1500 if (i40e_sync_vsi_filters(vsi))
1501 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1502
1503error_param:
1504 /* send the response to the vf */
1505 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
f657a6e1 1506 ret);
5c3c48ac
JB		 1507}
1508
1509/**
1510 * i40e_vc_del_mac_addr_msg
1511 * @vf: pointer to the vf info
1512 * @msg: pointer to the msg buffer
1513 * @msglen: msg length
1514 *
1515 * remove guest mac address filter
1516 **/
1517static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1518{
1519 struct i40e_virtchnl_ether_addr_list *al =
1520 (struct i40e_virtchnl_ether_addr_list *)msg;
1521 struct i40e_pf *pf = vf->pf;
1522 struct i40e_vsi *vsi = NULL;
1523 u16 vsi_id = al->vsi_id;
f657a6e1 1524 i40e_status ret = 0;
5c3c48ac
JB		 1525 int i;
1526
1527 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1528 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1529 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
f657a6e1 1530 ret = I40E_ERR_PARAM;
5c3c48ac
JB		 1531 goto error_param;
1532 }
f657a6e1
GR		 1533
1534 for (i = 0; i < al->num_elements; i++) {
700bbf6c
MW		 1535 if (is_broadcast_ether_addr(al->list[i].addr) ||
1536 is_zero_ether_addr(al->list[i].addr)) {
1537 dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
1538 al->list[i].addr);
1539 ret = I40E_ERR_INVALID_MAC_ADDR;
f657a6e1 1540 goto error_param;
700bbf6c 1541 }
f657a6e1 1542 }
5c3c48ac
JB		 1543 vsi = pf->vsi[vsi_id];
1544
1545 /* delete addresses from the list */
1546 for (i = 0; i < al->num_elements; i++)
1547 i40e_del_filter(vsi, al->list[i].addr,
1548 I40E_VLAN_ANY, true, false);
1549
1550 /* program the updated filter list */
1551 if (i40e_sync_vsi_filters(vsi))
1552 dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");
1553
1554error_param:
1555 /* send the response to the vf */
1556 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
f657a6e1 1557 ret);
5c3c48ac
JB		 1558}
1559
1560/**
1561 * i40e_vc_add_vlan_msg
1562 * @vf: pointer to the vf info
1563 * @msg: pointer to the msg buffer
1564 * @msglen: msg length
1565 *
1566 * program guest vlan id
1567 **/
1568static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1569{
1570 struct i40e_virtchnl_vlan_filter_list *vfl =
1571 (struct i40e_virtchnl_vlan_filter_list *)msg;
1572 struct i40e_pf *pf = vf->pf;
1573 struct i40e_vsi *vsi = NULL;
1574 u16 vsi_id = vfl->vsi_id;
1575 i40e_status aq_ret = 0;
1576 int i;
1577
1578 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1579 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1580 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1581 aq_ret = I40E_ERR_PARAM;
1582 goto error_param;
1583 }
1584
1585 for (i = 0; i < vfl->num_elements; i++) {
1586 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1587 aq_ret = I40E_ERR_PARAM;
1588 dev_err(&pf->pdev->dev,
1589 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
1590 goto error_param;
1591 }
1592 }
1593 vsi = pf->vsi[vsi_id];
1594 if (vsi->info.pvid) {
1595 aq_ret = I40E_ERR_PARAM;
1596 goto error_param;
1597 }
1598
1599 i40e_vlan_stripping_enable(vsi);
1600 for (i = 0; i < vfl->num_elements; i++) {
1601 /* add new VLAN filter */
1602 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
1603 if (ret)
1604 dev_err(&pf->pdev->dev,
1605 "Unable to add VF vlan filter %d, error %d\n",
1606 vfl->vlan_id[i], ret);
1607 }
1608
1609error_param:
1610 /* send the response to the vf */
1611 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
1612}
1613
1614/**
1615 * i40e_vc_remove_vlan_msg
1616 * @vf: pointer to the vf info
1617 * @msg: pointer to the msg buffer
1618 * @msglen: msg length
1619 *
1620 * remove programmed guest vlan id
1621 **/
1622static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
1623{
1624 struct i40e_virtchnl_vlan_filter_list *vfl =
1625 (struct i40e_virtchnl_vlan_filter_list *)msg;
1626 struct i40e_pf *pf = vf->pf;
1627 struct i40e_vsi *vsi = NULL;
1628 u16 vsi_id = vfl->vsi_id;
1629 i40e_status aq_ret = 0;
1630 int i;
1631
1632 if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
1633 !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
1634 !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
1635 aq_ret = I40E_ERR_PARAM;
1636 goto error_param;
1637 }
1638
1639 for (i = 0; i < vfl->num_elements; i++) {
1640 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
1641 aq_ret = I40E_ERR_PARAM;
1642 goto error_param;
1643 }
1644 }
1645
1646 vsi = pf->vsi[vsi_id];
1647 if (vsi->info.pvid) {
1648 aq_ret = I40E_ERR_PARAM;
1649 goto error_param;
1650 }
1651
1652 for (i = 0; i < vfl->num_elements; i++) {
1653 int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
1654 if (ret)
1655 dev_err(&pf->pdev->dev,
1656 "Unable to delete VF vlan filter %d, error %d\n",
1657 vfl->vlan_id[i], ret);
1658 }
1659
1660error_param:
1661 /* send the response to the vf */
1662 return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
1663}
1664
5c3c48ac
JB		 1665/**
1666 * i40e_vc_validate_vf_msg
1667 * @vf: pointer to the vf info
1668 * @msg: pointer to the msg buffer
1669 * @msglen: msg length
1670 * @msghndl: msg handle
1671 *
1672 * validate msg
1673 **/
1674static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
1675 u32 v_retval, u8 *msg, u16 msglen)
1676{
1677 bool err_msg_format = false;
1678 int valid_len;
1679
1680 /* Check if VF is disabled. */
1681 if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
1682 return I40E_ERR_PARAM;
1683
1684 /* Validate message length. */
1685 switch (v_opcode) {
1686 case I40E_VIRTCHNL_OP_VERSION:
1687 valid_len = sizeof(struct i40e_virtchnl_version_info);
1688 break;
1689 case I40E_VIRTCHNL_OP_RESET_VF:
1690 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1691 valid_len = 0;
1692 break;
1693 case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
1694 valid_len = sizeof(struct i40e_virtchnl_txq_info);
1695 break;
1696 case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
1697 valid_len = sizeof(struct i40e_virtchnl_rxq_info);
1698 break;
1699 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1700 valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
1701 if (msglen >= valid_len) {
1702 struct i40e_virtchnl_vsi_queue_config_info *vqc =
1703 (struct i40e_virtchnl_vsi_queue_config_info *)msg;
1704 valid_len += (vqc->num_queue_pairs *
1705 sizeof(struct
1706 i40e_virtchnl_queue_pair_info));
1707 if (vqc->num_queue_pairs == 0)
1708 err_msg_format = true;
1709 }
1710 break;
1711 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1712 valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
1713 if (msglen >= valid_len) {
1714 struct i40e_virtchnl_irq_map_info *vimi =
1715 (struct i40e_virtchnl_irq_map_info *)msg;
1716 valid_len += (vimi->num_vectors *
1717 sizeof(struct i40e_virtchnl_vector_map));
1718 if (vimi->num_vectors == 0)
1719 err_msg_format = true;
1720 }
1721 break;
1722 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1723 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1724 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1725 break;
1726 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1727 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1728 valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
1729 if (msglen >= valid_len) {
1730 struct i40e_virtchnl_ether_addr_list *veal =
1731 (struct i40e_virtchnl_ether_addr_list *)msg;
1732 valid_len += veal->num_elements *
1733 sizeof(struct i40e_virtchnl_ether_addr);
1734 if (veal->num_elements == 0)
1735 err_msg_format = true;
1736 }
1737 break;
1738 case I40E_VIRTCHNL_OP_ADD_VLAN:
1739 case I40E_VIRTCHNL_OP_DEL_VLAN:
1740 valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
1741 if (msglen >= valid_len) {
1742 struct i40e_virtchnl_vlan_filter_list *vfl =
1743 (struct i40e_virtchnl_vlan_filter_list *)msg;
1744 valid_len += vfl->num_elements * sizeof(u16);
1745 if (vfl->num_elements == 0)
1746 err_msg_format = true;
1747 }
1748 break;
1749 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1750 valid_len = sizeof(struct i40e_virtchnl_promisc_info);
1751 break;
1752 case I40E_VIRTCHNL_OP_GET_STATS:
1753 valid_len = sizeof(struct i40e_virtchnl_queue_select);
1754 break;
1755 /* These are always errors coming from the VF. */
1756 case I40E_VIRTCHNL_OP_EVENT:
1757 case I40E_VIRTCHNL_OP_UNKNOWN:
1758 default:
1759 return -EPERM;
1760 break;
1761 }
1762 /* few more checks */
1763 if ((valid_len != msglen) || (err_msg_format)) {
1764 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
1765 return -EINVAL;
1766 } else {
1767 return 0;
1768 }
1769}
1770
1771/**
1772 * i40e_vc_process_vf_msg
1773 * @pf: pointer to the pf structure
1774 * @vf_id: source vf id
1775 * @msg: pointer to the msg buffer
1776 * @msglen: msg length
1777 * @msghndl: msg handle
1778 *
1779 * called from the common aeq/arq handler to
1780 * process request from vf
1781 **/
1782int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
1783 u32 v_retval, u8 *msg, u16 msglen)
1784{
5c3c48ac 1785 struct i40e_hw *hw = &pf->hw;
c243e963 1786 unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
6c1b5bff 1787 struct i40e_vf *vf;
5c3c48ac
JB		 1788 int ret;
1789
1790 pf->vf_aq_requests++;
7efa84b7 1791 if (local_vf_id >= pf->num_alloc_vfs)
6c1b5bff 1792 return -EINVAL;
7efa84b7 1793 vf = &(pf->vf[local_vf_id]);
5c3c48ac
JB		 1794 /* perform basic checks on the msg */
1795 ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
1796
1797 if (ret) {
499ec80f 1798 dev_err(&pf->pdev->dev, "Invalid message from vf %d, opcode %d, len %d\n",
7efa84b7 1799 local_vf_id, v_opcode, msglen);
5c3c48ac
JB		 1800 return ret;
1801 }
bae3cae4 1802
5c3c48ac
JB		 1803 switch (v_opcode) {
1804 case I40E_VIRTCHNL_OP_VERSION:
1805 ret = i40e_vc_get_version_msg(vf);
1806 break;
1807 case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
1808 ret = i40e_vc_get_vf_resources_msg(vf);
1809 break;
1810 case I40E_VIRTCHNL_OP_RESET_VF:
fc18eaa0
MW		 1811 i40e_vc_reset_vf_msg(vf);
1812 ret = 0;
5c3c48ac
JB		 1813 break;
1814 case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
1815 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
1816 break;
1817 case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
1818 ret = i40e_vc_config_queues_msg(vf, msg, msglen);
1819 break;
1820 case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
1821 ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
1822 break;
1823 case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
1824 ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
1825 break;
1826 case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
1827 ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
1828 break;
1829 case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
1830 ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
1831 break;
1832 case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
1833 ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
1834 break;
1835 case I40E_VIRTCHNL_OP_ADD_VLAN:
1836 ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
1837 break;
1838 case I40E_VIRTCHNL_OP_DEL_VLAN:
1839 ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
1840 break;
1841 case I40E_VIRTCHNL_OP_GET_STATS:
1842 ret = i40e_vc_get_stats_msg(vf, msg, msglen);
1843 break;
5c3c48ac
JB		 1844 case I40E_VIRTCHNL_OP_UNKNOWN:
1845 default:
7efa84b7
MW		 1846 dev_err(&pf->pdev->dev, "Unsupported opcode %d from vf %d\n",
1847 v_opcode, local_vf_id);
5c3c48ac
JB		 1848 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
1849 I40E_ERR_NOT_IMPLEMENTED);
1850 break;
1851 }
1852
1853 return ret;
1854}
1855
1856/**
1857 * i40e_vc_process_vflr_event
1858 * @pf: pointer to the pf structure
1859 *
1860 * called from the vlfr irq handler to
1861 * free up vf resources and state variables
1862 **/
1863int i40e_vc_process_vflr_event(struct i40e_pf *pf)
1864{
1865 u32 reg, reg_idx, bit_idx, vf_id;
1866 struct i40e_hw *hw = &pf->hw;
1867 struct i40e_vf *vf;
1868
1869 if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
1870 return 0;
1871
1872 clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
1873 for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
1874 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1875 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1876 /* read GLGEN_VFLRSTAT register to find out the flr vfs */
1877 vf = &pf->vf[vf_id];
1878 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
1879 if (reg & (1 << bit_idx)) {
1880 /* clear the bit in GLGEN_VFLRSTAT */
1881 wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), (1 << bit_idx));
1882
eb2d80bc
MW		 1883 if (!test_bit(__I40E_DOWN, &pf->state))
1884 i40e_reset_vf(vf, true);
5c3c48ac
JB		 1885 }
1886 }
1887
1888 /* re-enable vflr interrupt cause */
1889 reg = rd32(hw, I40E_PFINT_ICR0_ENA);
1890 reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
1891 wr32(hw, I40E_PFINT_ICR0_ENA, reg);
1892 i40e_flush(hw);
1893
1894 return 0;
1895}
1896
1897/**
1898 * i40e_vc_vf_broadcast
1899 * @pf: pointer to the pf structure
1900 * @opcode: operation code
1901 * @retval: return value
1902 * @msg: pointer to the msg buffer
1903 * @msglen: msg length
1904 *
1905 * send a message to all VFs on a given PF
1906 **/
1907static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
1908 enum i40e_virtchnl_ops v_opcode,
1909 i40e_status v_retval, u8 *msg,
1910 u16 msglen)
1911{
1912 struct i40e_hw *hw = &pf->hw;
1913 struct i40e_vf *vf = pf->vf;
1914 int i;
1915
6e7b5bd3
ASJ		 1916 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
1917 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
478c9e74
ASJ		 1918 /* Not all vfs are enabled so skip the ones that are not */
1919 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
1920 !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1921 continue;
1922
5c3c48ac
JB		 1923 /* Ignore return value on purpose - a given VF may fail, but
1924 * we need to keep going and send to all of them
1925 */
f19efbb5 1926 i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
5c3c48ac 1927 msg, msglen, NULL);
5c3c48ac
JB		 1928 }
1929}
1930
1931/**
1932 * i40e_vc_notify_link_state
1933 * @pf: pointer to the pf structure
1934 *
1935 * send a link status message to all VFs on a given PF
1936 **/
1937void i40e_vc_notify_link_state(struct i40e_pf *pf)
1938{
1939 struct i40e_virtchnl_pf_event pfe;
588aefa0
MW		 1940 struct i40e_hw *hw = &pf->hw;
1941 struct i40e_vf *vf = pf->vf;
1942 struct i40e_link_status *ls = &pf->hw.phy.link_info;
1943 int i;
5c3c48ac
JB		 1944
1945 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
1946 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
6e7b5bd3
ASJ		 1947 for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
1948 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
588aefa0
MW		 1949 if (vf->link_forced) {
1950 pfe.event_data.link_event.link_status = vf->link_up;
1951 pfe.event_data.link_event.link_speed =
1952 (vf->link_up ? I40E_LINK_SPEED_40GB : 0);
1953 } else {
1954 pfe.event_data.link_event.link_status =
1955 ls->link_info & I40E_AQ_LINK_UP;
1956 pfe.event_data.link_event.link_speed = ls->link_speed;
1957 }
f19efbb5 1958 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
588aefa0
MW		 1959 0, (u8 *)&pfe, sizeof(pfe),
1960 NULL);
588aefa0 1961 }
5c3c48ac
JB		 1962}
1963
1964/**
1965 * i40e_vc_notify_reset
1966 * @pf: pointer to the pf structure
1967 *
1968 * indicate a pending reset to all VFs on a given PF
1969 **/
1970void i40e_vc_notify_reset(struct i40e_pf *pf)
1971{
1972 struct i40e_virtchnl_pf_event pfe;
1973
1974 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
1975 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
1976 i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, I40E_SUCCESS,
1977 (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
1978}
1979
1980/**
1981 * i40e_vc_notify_vf_reset
1982 * @vf: pointer to the vf structure
1983 *
1984 * indicate a pending reset to the given VF
1985 **/
1986void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
1987{
1988 struct i40e_virtchnl_pf_event pfe;
478c9e74
ASJ		 1989 int abs_vf_id;
1990
6e7b5bd3
ASJ		 1991 /* validate the request */
1992 if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1993 return;
1994
478c9e74
ASJ		 1995 /* verify if the VF is in either init or active before proceeding */
1996 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
1997 !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
1998 return;
1999
2000 abs_vf_id = vf->vf_id + vf->pf->hw.func_caps.vf_base_id;
5c3c48ac
JB		 2001
2002 pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
2003 pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
f19efbb5 2004 i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
5c3c48ac
JB		 2005 I40E_SUCCESS, (u8 *)&pfe,
2006 sizeof(struct i40e_virtchnl_pf_event), NULL);
2007}
2008
2009/**
2010 * i40e_ndo_set_vf_mac
2011 * @netdev: network interface device structure
2012 * @vf_id: vf identifier
2013 * @mac: mac address
2014 *
2015 * program vf mac address
2016 **/
2017int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
2018{
2019 struct i40e_netdev_priv *np = netdev_priv(netdev);
2020 struct i40e_vsi *vsi = np->vsi;
2021 struct i40e_pf *pf = vsi->back;
2022 struct i40e_mac_filter *f;
2023 struct i40e_vf *vf;
2024 int ret = 0;
2025
2026 /* validate the request */
2027 if (vf_id >= pf->num_alloc_vfs) {
2028 dev_err(&pf->pdev->dev,
2029 "Invalid VF Identifier %d\n", vf_id);
2030 ret = -EINVAL;
2031 goto error_param;
2032 }
2033
2034 vf = &(pf->vf[vf_id]);
2035 vsi = pf->vsi[vf->lan_vsi_index];
2036 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2037 dev_err(&pf->pdev->dev,
2038 "Uninitialized VF %d\n", vf_id);
2039 ret = -EINVAL;
2040 goto error_param;
2041 }
2042
2043 if (!is_valid_ether_addr(mac)) {
2044 dev_err(&pf->pdev->dev,
2045 "Invalid VF ethernet address\n");
2046 ret = -EINVAL;
2047 goto error_param;
2048 }
2049
2050 /* delete the temporary mac address */
37cc0d2f
GR		 2051 i40e_del_filter(vsi, vf->default_lan_addr.addr, vf->port_vlan_id,
2052 true, false);
5c3c48ac 2053
29f71bb0
GR		 2054 /* Delete all the filters for this VSI - we're going to kill it
2055 * anyway.
2056 */
2057 list_for_each_entry(f, &vsi->mac_filter_list, list)
2058 i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);
5c3c48ac
JB		 2059
2060 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
2061 /* program mac filter */
2062 if (i40e_sync_vsi_filters(vsi)) {
2063 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
2064 ret = -EIO;
2065 goto error_param;
2066 }
9a173901 2067 ether_addr_copy(vf->default_lan_addr.addr, mac);
f657a6e1 2068 vf->pf_set_mac = true;
17413a80
GR		 2069 /* Force the VF driver stop so it has to reload with new MAC address */
2070 i40e_vc_disable_vf(pf, vf);
5c3c48ac 2071 dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");
5c3c48ac
JB		 2072
2073error_param:
2074 return ret;
2075}
2076
2077/**
2078 * i40e_ndo_set_vf_port_vlan
2079 * @netdev: network interface device structure
2080 * @vf_id: vf identifier
2081 * @vlan_id: mac address
2082 * @qos: priority setting
2083 *
2084 * program vf vlan id and/or qos
2085 **/
2086int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
2087 int vf_id, u16 vlan_id, u8 qos)
2088{
2089 struct i40e_netdev_priv *np = netdev_priv(netdev);
2090 struct i40e_pf *pf = np->vsi->back;
2091 struct i40e_vsi *vsi;
2092 struct i40e_vf *vf;
2093 int ret = 0;
2094
2095 /* validate the request */
2096 if (vf_id >= pf->num_alloc_vfs) {
2097 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2098 ret = -EINVAL;
2099 goto error_pvid;
2100 }
2101
2102 if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
2103 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
2104 ret = -EINVAL;
2105 goto error_pvid;
2106 }
2107
2108 vf = &(pf->vf[vf_id]);
2109 vsi = pf->vsi[vf->lan_vsi_index];
2110 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2111 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2112 ret = -EINVAL;
2113 goto error_pvid;
2114 }
2115
f9b4b627 2116 if (vsi->info.pvid == 0 && i40e_is_vsi_in_vlan(vsi)) {
99a4973c
GR		 2117 dev_err(&pf->pdev->dev,
2118 "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",
2119 vf_id);
f9b4b627
GR		 2120 /* Administrator Error - knock the VF offline until he does
2121 * the right thing by reconfiguring his network correctly
2122 * and then reloading the VF driver.
2123 */
2124 i40e_vc_disable_vf(pf, vf);
2125 }
99a4973c 2126
8d82a7c5
GR		 2127 /* Check for condition where there was already a port VLAN ID
2128 * filter set and now it is being deleted by setting it to zero.
1315f7c3
GR		 2129 * Additionally check for the condition where there was a port
2130 * VLAN but now there is a new and different port VLAN being set.
8d82a7c5
GR		 2131 * Before deleting all the old VLAN filters we must add new ones
2132 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
2133 * MAC addresses deleted.
2134 */
1315f7c3
GR		 2135 if ((!(vlan_id || qos) ||
2136 (vlan_id | qos) != le16_to_cpu(vsi->info.pvid)) &&
2137 vsi->info.pvid)
8d82a7c5
GR		 2138 ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);
2139
5c3c48ac
JB		 2140 if (vsi->info.pvid) {
2141 /* kill old VLAN */
2142 ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
2143 VLAN_VID_MASK));
2144 if (ret) {
2145 dev_info(&vsi->back->pdev->dev,
2146 "remove VLAN failed, ret=%d, aq_err=%d\n",
2147 ret, pf->hw.aq.asq_last_status);
2148 }
2149 }
2150 if (vlan_id || qos)
2151 ret = i40e_vsi_add_pvid(vsi,
2152 vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT));
2153 else
6c12fcbf 2154 i40e_vsi_remove_pvid(vsi);
5c3c48ac
JB		 2155
2156 if (vlan_id) {
2157 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
2158 vlan_id, qos, vf_id);
2159
2160 /* add new VLAN filter */
2161 ret = i40e_vsi_add_vlan(vsi, vlan_id);
2162 if (ret) {
2163 dev_info(&vsi->back->pdev->dev,
2164 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
2165 vsi->back->hw.aq.asq_last_status);
2166 goto error_pvid;
2167 }
8d82a7c5
GR		 2168 /* Kill non-vlan MAC filters - ignore error return since
2169 * there might not be any non-vlan MAC filters.
2170 */
2171 i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
5c3c48ac
JB		 2172 }
2173
2174 if (ret) {
2175 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
2176 goto error_pvid;
2177 }
6c12fcbf
GR		 2178 /* The Port VLAN needs to be saved across resets the same as the
2179 * default LAN MAC address.
2180 */
2181 vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
5c3c48ac
JB		 2182 ret = 0;
2183
2184error_pvid:
2185 return ret;
2186}
2187
84590fd9
MW		 2188#define I40E_BW_CREDIT_DIVISOR 50 /* 50Mbps per BW credit */
2189#define I40E_MAX_BW_INACTIVE_ACCUM 4 /* device can accumulate 4 credits max */
5c3c48ac
JB		 2190/**
2191 * i40e_ndo_set_vf_bw
2192 * @netdev: network interface device structure
2193 * @vf_id: vf identifier
2194 * @tx_rate: tx rate
2195 *
2196 * configure vf tx rate
2197 **/
ed616689
SC		 2198int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
2199 int max_tx_rate)
5c3c48ac 2200{
6b192891
MW		 2201 struct i40e_netdev_priv *np = netdev_priv(netdev);
2202 struct i40e_pf *pf = np->vsi->back;
2203 struct i40e_vsi *vsi;
2204 struct i40e_vf *vf;
2205 int speed = 0;
2206 int ret = 0;
2207
2208 /* validate the request */
2209 if (vf_id >= pf->num_alloc_vfs) {
2210 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
2211 ret = -EINVAL;
2212 goto error;
2213 }
2214
ed616689
SC		 2215 if (min_tx_rate) {
2216 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for vf %d.\n",
2217 min_tx_rate, vf_id);
2218 return -EINVAL;
2219 }
2220
6b192891
MW		 2221 vf = &(pf->vf[vf_id]);
2222 vsi = pf->vsi[vf->lan_vsi_index];
2223 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2224 dev_err(&pf->pdev->dev, "Uninitialized VF %d.\n", vf_id);
2225 ret = -EINVAL;
2226 goto error;
2227 }
2228
2229 switch (pf->hw.phy.link_info.link_speed) {
2230 case I40E_LINK_SPEED_40GB:
2231 speed = 40000;
2232 break;
2233 case I40E_LINK_SPEED_10GB:
2234 speed = 10000;
2235 break;
2236 case I40E_LINK_SPEED_1GB:
2237 speed = 1000;
2238 break;
2239 default:
2240 break;
2241 }
2242
ed616689
SC		 2243 if (max_tx_rate > speed) {
2244 dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for vf %d.",
2245 max_tx_rate, vf->vf_id);
6b192891
MW		 2246 ret = -EINVAL;
2247 goto error;
2248 }
2249
dac9b31a
MW		 2250 if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
2251 dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
2252 max_tx_rate = 50;
2253 }
2254
6b192891 2255 /* Tx rate credits are in values of 50Mbps, 0 is disabled*/
84590fd9
MW		 2256 ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
2257 max_tx_rate / I40E_BW_CREDIT_DIVISOR,
2258 I40E_MAX_BW_INACTIVE_ACCUM, NULL);
6b192891 2259 if (ret) {
ed616689 2260 dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
6b192891
MW		 2261 ret);
2262 ret = -EIO;
2263 goto error;
2264 }
ed616689 2265 vf->tx_rate = max_tx_rate;
6b192891
MW		 2266error:
2267 return ret;
5c3c48ac
JB		 2268}
2269
2270/**
2271 * i40e_ndo_get_vf_config
2272 * @netdev: network interface device structure
2273 * @vf_id: vf identifier
2274 * @ivi: vf configuration structure
2275 *
2276 * return vf configuration
2277 **/
2278int i40e_ndo_get_vf_config(struct net_device *netdev,
2279 int vf_id, struct ifla_vf_info *ivi)
2280{
2281 struct i40e_netdev_priv *np = netdev_priv(netdev);
5c3c48ac
JB		 2282 struct i40e_vsi *vsi = np->vsi;
2283 struct i40e_pf *pf = vsi->back;
2284 struct i40e_vf *vf;
2285 int ret = 0;
2286
2287 /* validate the request */
2288 if (vf_id >= pf->num_alloc_vfs) {
2289 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2290 ret = -EINVAL;
2291 goto error_param;
2292 }
2293
2294 vf = &(pf->vf[vf_id]);
2295 /* first vsi is always the LAN vsi */
2296 vsi = pf->vsi[vf->lan_vsi_index];
2297 if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
2298 dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
2299 ret = -EINVAL;
2300 goto error_param;
2301 }
2302
2303 ivi->vf = vf_id;
2304
f4a1c5cf 2305 memcpy(&ivi->mac, vf->default_lan_addr.addr, ETH_ALEN);
5c3c48ac 2306
ed616689
SC		 2307 ivi->max_tx_rate = vf->tx_rate;
2308 ivi->min_tx_rate = 0;
5c3c48ac
JB		 2309 ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
2310 ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
2311 I40E_VLAN_PRIORITY_SHIFT;
84ca55a0
MW		 2312 if (vf->link_forced == false)
2313 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
2314 else if (vf->link_up == true)
2315 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
2316 else
2317 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
c674d125 2318 ivi->spoofchk = vf->spoofchk;
5c3c48ac
JB		 2319 ret = 0;
2320
2321error_param:
2322 return ret;
2323}
588aefa0
MW		 2324
2325/**
2326 * i40e_ndo_set_vf_link_state
2327 * @netdev: network interface device structure
2328 * @vf_id: vf identifier
2329 * @link: required link state
2330 *
2331 * Set the link state of a specified VF, regardless of physical link state
2332 **/
2333int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
2334{
2335 struct i40e_netdev_priv *np = netdev_priv(netdev);
2336 struct i40e_pf *pf = np->vsi->back;
2337 struct i40e_virtchnl_pf_event pfe;
2338 struct i40e_hw *hw = &pf->hw;
2339 struct i40e_vf *vf;
f19efbb5 2340 int abs_vf_id;
588aefa0
MW		 2341 int ret = 0;
2342
2343 /* validate the request */
2344 if (vf_id >= pf->num_alloc_vfs) {
2345 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2346 ret = -EINVAL;
2347 goto error_out;
2348 }
2349
2350 vf = &pf->vf[vf_id];
f19efbb5 2351 abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
588aefa0
MW		 2352
2353 pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
2354 pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
2355
2356 switch (link) {
2357 case IFLA_VF_LINK_STATE_AUTO:
2358 vf->link_forced = false;
2359 pfe.event_data.link_event.link_status =
2360 pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
2361 pfe.event_data.link_event.link_speed =
2362 pf->hw.phy.link_info.link_speed;
2363 break;
2364 case IFLA_VF_LINK_STATE_ENABLE:
2365 vf->link_forced = true;
2366 vf->link_up = true;
2367 pfe.event_data.link_event.link_status = true;
2368 pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
2369 break;
2370 case IFLA_VF_LINK_STATE_DISABLE:
2371 vf->link_forced = true;
2372 vf->link_up = false;
2373 pfe.event_data.link_event.link_status = false;
2374 pfe.event_data.link_event.link_speed = 0;
2375 break;
2376 default:
2377 ret = -EINVAL;
2378 goto error_out;
2379 }
2380 /* Notify the VF of its new link state */
f19efbb5 2381 i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
588aefa0
MW		 2382 0, (u8 *)&pfe, sizeof(pfe), NULL);
2383
2384error_out:
2385 return ret;
2386}
c674d125
MW		 2387
2388/**
2389 * i40e_ndo_set_vf_spoofchk
2390 * @netdev: network interface device structure
2391 * @vf_id: vf identifier
2392 * @enable: flag to enable or disable feature
2393 *
2394 * Enable or disable VF spoof checking
2395 **/
e6d9004d 2396int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
c674d125
MW		 2397{
2398 struct i40e_netdev_priv *np = netdev_priv(netdev);
2399 struct i40e_vsi *vsi = np->vsi;
2400 struct i40e_pf *pf = vsi->back;
2401 struct i40e_vsi_context ctxt;
2402 struct i40e_hw *hw = &pf->hw;
2403 struct i40e_vf *vf;
2404 int ret = 0;
2405
2406 /* validate the request */
2407 if (vf_id >= pf->num_alloc_vfs) {
2408 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
2409 ret = -EINVAL;
2410 goto out;
2411 }
2412
2413 vf = &(pf->vf[vf_id]);
2414
2415 if (enable == vf->spoofchk)
2416 goto out;
2417
2418 vf->spoofchk = enable;
2419 memset(&ctxt, 0, sizeof(ctxt));
2420 ctxt.seid = pf->vsi[vf->lan_vsi_index]->seid;
2421 ctxt.pf_num = pf->hw.pf_id;
2422 ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
2423 if (enable)
2424 ctxt.info.sec_flags |= I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK;
2425 ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
2426 if (ret) {
2427 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
2428 ret);
2429 ret = -EIO;
2430 }
2431out:
2432 return ret;
2433}
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