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1// SPDX-License-Identifier: GPL-2.0
2/* Copyright (C) 2019-2021, Intel Corporation. */
3
4#include "ice_vsi_vlan_lib.h"
5#include "ice_lib.h"
6#include "ice_fltr.h"
7#include "ice.h"
8
9static void print_invalid_tpid(struct ice_vsi *vsi, u16 tpid)
10{
11 dev_err(ice_pf_to_dev(vsi->back), "%s %d specified invalid VLAN tpid 0x%04x\n",
12 ice_vsi_type_str(vsi->type), vsi->idx, tpid);
13}
14
15/**
16 * validate_vlan - check if the ice_vlan passed in is valid
17 * @vsi: VSI used for printing error message
18 * @vlan: ice_vlan structure to validate
19 *
20 * Return true if the VLAN TPID is valid or if the VLAN TPID is 0 and the VLAN
21 * VID is 0, which allows for non-zero VLAN filters with the specified VLAN TPID
22 * and untagged VLAN 0 filters to be added to the prune list respectively.
23 */
24static bool validate_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
25{
26 if (vlan->tpid != ETH_P_8021Q && vlan->tpid != ETH_P_8021AD &&
27 vlan->tpid != ETH_P_QINQ1 && (vlan->tpid || vlan->vid)) {
28 print_invalid_tpid(vsi, vlan->tpid);
29 return false;
30 }
31
32 return true;
33}
34
35/**
36 * ice_vsi_add_vlan - default add VLAN implementation for all VSI types
37 * @vsi: VSI being configured
38 * @vlan: VLAN filter to add
39 */
40int ice_vsi_add_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
41{
42 int err;
43
44 if (!validate_vlan(vsi, vlan))
45 return -EINVAL;
46
47 err = ice_fltr_add_vlan(vsi, vlan);
48 if (err && err != -EEXIST) {
49 dev_err(ice_pf_to_dev(vsi->back), "Failure Adding VLAN %d on VSI %i, status %d\n",
50 vlan->vid, vsi->vsi_num, err);
51 return err;
52 }
53
54 vsi->num_vlan++;
55 return 0;
56}
57
58/**
59 * ice_vsi_del_vlan - default del VLAN implementation for all VSI types
60 * @vsi: VSI being configured
61 * @vlan: VLAN filter to delete
62 */
63int ice_vsi_del_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
64{
65 struct ice_pf *pf = vsi->back;
66 struct device *dev;
67 int err;
68
69 if (!validate_vlan(vsi, vlan))
70 return -EINVAL;
71
72 dev = ice_pf_to_dev(pf);
73
74 err = ice_fltr_remove_vlan(vsi, vlan);
75 if (!err)
76 vsi->num_vlan--;
77 else if (err == -ENOENT || err == -EBUSY)
78 err = 0;
79 else
80 dev_err(dev, "Error removing VLAN %d on VSI %i error: %d\n",
81 vlan->vid, vsi->vsi_num, err);
82
83 return err;
84}
85
86/**
87 * ice_vsi_manage_vlan_insertion - Manage VLAN insertion for the VSI for Tx
88 * @vsi: the VSI being changed
89 */
90static int ice_vsi_manage_vlan_insertion(struct ice_vsi *vsi)
91{
92 struct ice_hw *hw = &vsi->back->hw;
93 struct ice_vsi_ctx *ctxt;
94 int err;
95
96 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
97 if (!ctxt)
98 return -ENOMEM;
99
100 /* Here we are configuring the VSI to let the driver add VLAN tags by
101 * setting inner_vlan_flags to ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL. The actual VLAN tag
102 * insertion happens in the Tx hot path, in ice_tx_map.
103 */
104 ctxt->info.inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL;
105
106 /* Preserve existing VLAN strip setting */
107 ctxt->info.inner_vlan_flags |= (vsi->info.inner_vlan_flags &
108 ICE_AQ_VSI_INNER_VLAN_EMODE_M);
109
110 ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID);
111
112 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
113 if (err) {
114 dev_err(ice_pf_to_dev(vsi->back), "update VSI for VLAN insert failed, err %d aq_err %s\n",
115 err, ice_aq_str(hw->adminq.sq_last_status));
116 goto out;
117 }
118
119 vsi->info.inner_vlan_flags = ctxt->info.inner_vlan_flags;
120out:
121 kfree(ctxt);
122 return err;
123}
124
125/**
126 * ice_vsi_manage_vlan_stripping - Manage VLAN stripping for the VSI for Rx
127 * @vsi: the VSI being changed
128 * @ena: boolean value indicating if this is a enable or disable request
129 */
130static int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena)
131{
132 struct ice_hw *hw = &vsi->back->hw;
133 struct ice_vsi_ctx *ctxt;
134 u8 *ivf;
135 int err;
136
137 /* do not allow modifying VLAN stripping when a port VLAN is configured
138 * on this VSI
139 */
140 if (vsi->info.port_based_inner_vlan)
141 return 0;
142
143 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
144 if (!ctxt)
145 return -ENOMEM;
146
147 ivf = &ctxt->info.inner_vlan_flags;
148
149 /* Here we are configuring what the VSI should do with the VLAN tag in
150 * the Rx packet. We can either leave the tag in the packet or put it in
151 * the Rx descriptor.
152 */
153 if (ena) {
154 /* Strip VLAN tag from Rx packet and put it in the desc */
155 *ivf = FIELD_PREP(ICE_AQ_VSI_INNER_VLAN_EMODE_M,
156 ICE_AQ_VSI_INNER_VLAN_EMODE_STR_BOTH);
157 } else {
158 /* Disable stripping. Leave tag in packet */
159 *ivf = FIELD_PREP(ICE_AQ_VSI_INNER_VLAN_EMODE_M,
160 ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING);
161 }
162
163 /* Allow all packets untagged/tagged */
164 *ivf |= ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL;
165
166 ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID);
167
168 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
169 if (err) {
170 dev_err(ice_pf_to_dev(vsi->back), "update VSI for VLAN strip failed, ena = %d err %d aq_err %s\n",
171 ena, err, ice_aq_str(hw->adminq.sq_last_status));
172 goto out;
173 }
174
175 vsi->info.inner_vlan_flags = ctxt->info.inner_vlan_flags;
176out:
177 kfree(ctxt);
178 return err;
179}
180
181int ice_vsi_ena_inner_stripping(struct ice_vsi *vsi, const u16 tpid)
182{
183 if (tpid != ETH_P_8021Q) {
184 print_invalid_tpid(vsi, tpid);
185 return -EINVAL;
186 }
187
188 return ice_vsi_manage_vlan_stripping(vsi, true);
189}
190
191int ice_vsi_dis_inner_stripping(struct ice_vsi *vsi)
192{
193 return ice_vsi_manage_vlan_stripping(vsi, false);
194}
195
196int ice_vsi_ena_inner_insertion(struct ice_vsi *vsi, const u16 tpid)
197{
198 if (tpid != ETH_P_8021Q) {
199 print_invalid_tpid(vsi, tpid);
200 return -EINVAL;
201 }
202
203 return ice_vsi_manage_vlan_insertion(vsi);
204}
205
206int ice_vsi_dis_inner_insertion(struct ice_vsi *vsi)
207{
208 return ice_vsi_manage_vlan_insertion(vsi);
209}
210
211static void
212ice_save_vlan_info(struct ice_aqc_vsi_props *info,
213 struct ice_vsi_vlan_info *vlan)
214{
215 vlan->sw_flags2 = info->sw_flags2;
216 vlan->inner_vlan_flags = info->inner_vlan_flags;
217 vlan->outer_vlan_flags = info->outer_vlan_flags;
218}
219
220static void
221ice_restore_vlan_info(struct ice_aqc_vsi_props *info,
222 struct ice_vsi_vlan_info *vlan)
223{
224 info->sw_flags2 = vlan->sw_flags2;
225 info->inner_vlan_flags = vlan->inner_vlan_flags;
226 info->outer_vlan_flags = vlan->outer_vlan_flags;
227}
228
229/**
230 * __ice_vsi_set_inner_port_vlan - set port VLAN VSI context settings to enable a port VLAN
231 * @vsi: the VSI to update
232 * @pvid_info: VLAN ID and QoS used to set the PVID VSI context field
233 */
234static int __ice_vsi_set_inner_port_vlan(struct ice_vsi *vsi, u16 pvid_info)
235{
236 struct ice_hw *hw = &vsi->back->hw;
237 struct ice_aqc_vsi_props *info;
238 struct ice_vsi_ctx *ctxt;
239 int ret;
240
241 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
242 if (!ctxt)
243 return -ENOMEM;
244
245 ice_save_vlan_info(&vsi->info, &vsi->vlan_info);
246 ctxt->info = vsi->info;
247 info = &ctxt->info;
248 info->inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_TX_MODE_ACCEPTUNTAGGED |
249 ICE_AQ_VSI_INNER_VLAN_INSERT_PVID |
250 ICE_AQ_VSI_INNER_VLAN_EMODE_STR;
251 info->sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
252
253 info->port_based_inner_vlan = cpu_to_le16(pvid_info);
254 info->valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID |
255 ICE_AQ_VSI_PROP_SW_VALID);
256
257 ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
258 if (ret) {
259 dev_info(ice_hw_to_dev(hw), "update VSI for port VLAN failed, err %d aq_err %s\n",
260 ret, ice_aq_str(hw->adminq.sq_last_status));
261 goto out;
262 }
263
264 vsi->info.inner_vlan_flags = info->inner_vlan_flags;
265 vsi->info.sw_flags2 = info->sw_flags2;
266 vsi->info.port_based_inner_vlan = info->port_based_inner_vlan;
267out:
268 kfree(ctxt);
269 return ret;
270}
271
272int ice_vsi_set_inner_port_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
273{
274 u16 port_vlan_info;
275
276 if (vlan->tpid != ETH_P_8021Q)
277 return -EINVAL;
278
279 if (vlan->prio > 7)
280 return -EINVAL;
281
282 port_vlan_info = vlan->vid | (vlan->prio << VLAN_PRIO_SHIFT);
283
284 return __ice_vsi_set_inner_port_vlan(vsi, port_vlan_info);
285}
286
287int ice_vsi_clear_inner_port_vlan(struct ice_vsi *vsi)
288{
289 struct ice_hw *hw = &vsi->back->hw;
290 struct ice_aqc_vsi_props *info;
291 struct ice_vsi_ctx *ctxt;
292 int ret;
293
294 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
295 if (!ctxt)
296 return -ENOMEM;
297
298 ice_restore_vlan_info(&vsi->info, &vsi->vlan_info);
299 vsi->info.port_based_inner_vlan = 0;
300 ctxt->info = vsi->info;
301 info = &ctxt->info;
302 info->valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID |
303 ICE_AQ_VSI_PROP_SW_VALID);
304
305 ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
306 if (ret)
307 dev_err(ice_hw_to_dev(hw), "update VSI for port VLAN failed, err %d aq_err %s\n",
308 ret, ice_aq_str(hw->adminq.sq_last_status));
309
310 kfree(ctxt);
311 return ret;
312}
313
314/**
315 * ice_cfg_vlan_pruning - enable or disable VLAN pruning on the VSI
316 * @vsi: VSI to enable or disable VLAN pruning on
317 * @ena: set to true to enable VLAN pruning and false to disable it
318 *
319 * returns 0 if VSI is updated, negative otherwise
320 */
321static int ice_cfg_vlan_pruning(struct ice_vsi *vsi, bool ena)
322{
323 struct ice_vsi_ctx *ctxt;
324 struct ice_pf *pf;
325 int status;
326
327 if (!vsi)
328 return -EINVAL;
329
330 /* Don't enable VLAN pruning if the netdev is currently in promiscuous
331 * mode. VLAN pruning will be enabled when the interface exits
332 * promiscuous mode if any VLAN filters are active.
333 */
334 if (vsi->netdev && vsi->netdev->flags & IFF_PROMISC && ena)
335 return 0;
336
337 pf = vsi->back;
338 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
339 if (!ctxt)
340 return -ENOMEM;
341
342 ctxt->info = vsi->info;
343
344 if (ena)
345 ctxt->info.sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
346 else
347 ctxt->info.sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
348
349 ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SW_VALID);
350
351 status = ice_update_vsi(&pf->hw, vsi->idx, ctxt, NULL);
352 if (status) {
353 netdev_err(vsi->netdev, "%sabling VLAN pruning on VSI handle: %d, VSI HW ID: %d failed, err = %d, aq_err = %s\n",
354 ena ? "En" : "Dis", vsi->idx, vsi->vsi_num, status,
355 ice_aq_str(pf->hw.adminq.sq_last_status));
356 goto err_out;
357 }
358
359 vsi->info.sw_flags2 = ctxt->info.sw_flags2;
360
361 kfree(ctxt);
362 return 0;
363
364err_out:
365 kfree(ctxt);
366 return status;
367}
368
369int ice_vsi_ena_rx_vlan_filtering(struct ice_vsi *vsi)
370{
371 return ice_cfg_vlan_pruning(vsi, true);
372}
373
374int ice_vsi_dis_rx_vlan_filtering(struct ice_vsi *vsi)
375{
376 return ice_cfg_vlan_pruning(vsi, false);
377}
378
379static int ice_cfg_vlan_antispoof(struct ice_vsi *vsi, bool enable)
380{
381 struct ice_vsi_ctx *ctx;
382 int err;
383
384 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
385 if (!ctx)
386 return -ENOMEM;
387
388 ctx->info.sec_flags = vsi->info.sec_flags;
389 ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
390
391 if (enable)
392 ctx->info.sec_flags |= ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
393 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S;
394 else
395 ctx->info.sec_flags &= ~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
396 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);
397
398 err = ice_update_vsi(&vsi->back->hw, vsi->idx, ctx, NULL);
399 if (err)
400 dev_err(ice_pf_to_dev(vsi->back), "Failed to configure Tx VLAN anti-spoof %s for VSI %d, error %d\n",
401 enable ? "ON" : "OFF", vsi->vsi_num, err);
402 else
403 vsi->info.sec_flags = ctx->info.sec_flags;
404
405 kfree(ctx);
406
407 return err;
408}
409
410int ice_vsi_ena_tx_vlan_filtering(struct ice_vsi *vsi)
411{
412 return ice_cfg_vlan_antispoof(vsi, true);
413}
414
415int ice_vsi_dis_tx_vlan_filtering(struct ice_vsi *vsi)
416{
417 return ice_cfg_vlan_antispoof(vsi, false);
418}
419
420/**
421 * tpid_to_vsi_outer_vlan_type - convert from TPID to VSI context based tag_type
422 * @tpid: tpid used to translate into VSI context based tag_type
423 * @tag_type: output variable to hold the VSI context based tag type
424 */
425static int tpid_to_vsi_outer_vlan_type(u16 tpid, u8 *tag_type)
426{
427 switch (tpid) {
428 case ETH_P_8021Q:
429 *tag_type = ICE_AQ_VSI_OUTER_TAG_VLAN_8100;
430 break;
431 case ETH_P_8021AD:
432 *tag_type = ICE_AQ_VSI_OUTER_TAG_STAG;
433 break;
434 case ETH_P_QINQ1:
435 *tag_type = ICE_AQ_VSI_OUTER_TAG_VLAN_9100;
436 break;
437 default:
438 *tag_type = 0;
439 return -EINVAL;
440 }
441
442 return 0;
443}
444
445/**
446 * ice_vsi_ena_outer_stripping - enable outer VLAN stripping
447 * @vsi: VSI to configure
448 * @tpid: TPID to enable outer VLAN stripping for
449 *
450 * Enable outer VLAN stripping via VSI context. This function should only be
451 * used if DVM is supported. Also, this function should never be called directly
452 * as it should be part of ice_vsi_vlan_ops if it's needed.
453 *
454 * Since the VSI context only supports a single TPID for insertion and
455 * stripping, setting the TPID for stripping will affect the TPID for insertion.
456 * Callers need to be aware of this limitation.
457 *
458 * Only modify outer VLAN stripping settings and the VLAN TPID. Outer VLAN
459 * insertion settings are unmodified.
460 *
461 * This enables hardware to strip a VLAN tag with the specified TPID to be
462 * stripped from the packet and placed in the receive descriptor.
463 */
464int ice_vsi_ena_outer_stripping(struct ice_vsi *vsi, u16 tpid)
465{
466 struct ice_hw *hw = &vsi->back->hw;
467 struct ice_vsi_ctx *ctxt;
468 u8 tag_type;
469 int err;
470
471 /* do not allow modifying VLAN stripping when a port VLAN is configured
472 * on this VSI
473 */
474 if (vsi->info.port_based_outer_vlan)
475 return 0;
476
477 if (tpid_to_vsi_outer_vlan_type(tpid, &tag_type))
478 return -EINVAL;
479
480 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
481 if (!ctxt)
482 return -ENOMEM;
483
484 ctxt->info.valid_sections =
485 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID);
486 /* clear current outer VLAN strip settings */
487 ctxt->info.outer_vlan_flags = vsi->info.outer_vlan_flags &
488 ~(ICE_AQ_VSI_OUTER_VLAN_EMODE_M | ICE_AQ_VSI_OUTER_TAG_TYPE_M);
489 ctxt->info.outer_vlan_flags |=
490 /* we want EMODE_SHOW_BOTH, but that value is zero, so the line
491 * above clears it well enough that we don't need to try to set
492 * zero here, so just do the tag type
493 */
494 FIELD_PREP(ICE_AQ_VSI_OUTER_TAG_TYPE_M, tag_type);
495
496 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
497 if (err)
498 dev_err(ice_pf_to_dev(vsi->back), "update VSI for enabling outer VLAN stripping failed, err %d aq_err %s\n",
499 err, ice_aq_str(hw->adminq.sq_last_status));
500 else
501 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags;
502
503 kfree(ctxt);
504 return err;
505}
506
507/**
508 * ice_vsi_dis_outer_stripping - disable outer VLAN stripping
509 * @vsi: VSI to configure
510 *
511 * Disable outer VLAN stripping via VSI context. This function should only be
512 * used if DVM is supported. Also, this function should never be called directly
513 * as it should be part of ice_vsi_vlan_ops if it's needed.
514 *
515 * Only modify the outer VLAN stripping settings. The VLAN TPID and outer VLAN
516 * insertion settings are unmodified.
517 *
518 * This tells the hardware to not strip any VLAN tagged packets, thus leaving
519 * them in the packet. This enables software offloaded VLAN stripping and
520 * disables hardware offloaded VLAN stripping.
521 */
522int ice_vsi_dis_outer_stripping(struct ice_vsi *vsi)
523{
524 struct ice_hw *hw = &vsi->back->hw;
525 struct ice_vsi_ctx *ctxt;
526 int err;
527
528 if (vsi->info.port_based_outer_vlan)
529 return 0;
530
531 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
532 if (!ctxt)
533 return -ENOMEM;
534
535 ctxt->info.valid_sections =
536 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID);
537 /* clear current outer VLAN strip settings */
538 ctxt->info.outer_vlan_flags = vsi->info.outer_vlan_flags &
539 ~ICE_AQ_VSI_OUTER_VLAN_EMODE_M;
540 ctxt->info.outer_vlan_flags |= ICE_AQ_VSI_OUTER_VLAN_EMODE_NOTHING <<
541 ICE_AQ_VSI_OUTER_VLAN_EMODE_S;
542
543 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
544 if (err)
545 dev_err(ice_pf_to_dev(vsi->back), "update VSI for disabling outer VLAN stripping failed, err %d aq_err %s\n",
546 err, ice_aq_str(hw->adminq.sq_last_status));
547 else
548 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags;
549
550 kfree(ctxt);
551 return err;
552}
553
554/**
555 * ice_vsi_ena_outer_insertion - enable outer VLAN insertion
556 * @vsi: VSI to configure
557 * @tpid: TPID to enable outer VLAN insertion for
558 *
559 * Enable outer VLAN insertion via VSI context. This function should only be
560 * used if DVM is supported. Also, this function should never be called directly
561 * as it should be part of ice_vsi_vlan_ops if it's needed.
562 *
563 * Since the VSI context only supports a single TPID for insertion and
564 * stripping, setting the TPID for insertion will affect the TPID for stripping.
565 * Callers need to be aware of this limitation.
566 *
567 * Only modify outer VLAN insertion settings and the VLAN TPID. Outer VLAN
568 * stripping settings are unmodified.
569 *
570 * This allows a VLAN tag with the specified TPID to be inserted in the transmit
571 * descriptor.
572 */
573int ice_vsi_ena_outer_insertion(struct ice_vsi *vsi, u16 tpid)
574{
575 struct ice_hw *hw = &vsi->back->hw;
576 struct ice_vsi_ctx *ctxt;
577 u8 tag_type;
578 int err;
579
580 if (vsi->info.port_based_outer_vlan)
581 return 0;
582
583 if (tpid_to_vsi_outer_vlan_type(tpid, &tag_type))
584 return -EINVAL;
585
586 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
587 if (!ctxt)
588 return -ENOMEM;
589
590 ctxt->info.valid_sections =
591 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID);
592 /* clear current outer VLAN insertion settings */
593 ctxt->info.outer_vlan_flags = vsi->info.outer_vlan_flags &
594 ~(ICE_AQ_VSI_OUTER_VLAN_PORT_BASED_INSERT |
595 ICE_AQ_VSI_OUTER_VLAN_BLOCK_TX_DESC |
596 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M |
597 ICE_AQ_VSI_OUTER_TAG_TYPE_M);
598 ctxt->info.outer_vlan_flags |=
599 FIELD_PREP(ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M,
600 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ALL) |
601 FIELD_PREP(ICE_AQ_VSI_OUTER_TAG_TYPE_M, tag_type);
602
603 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
604 if (err)
605 dev_err(ice_pf_to_dev(vsi->back), "update VSI for enabling outer VLAN insertion failed, err %d aq_err %s\n",
606 err, ice_aq_str(hw->adminq.sq_last_status));
607 else
608 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags;
609
610 kfree(ctxt);
611 return err;
612}
613
614/**
615 * ice_vsi_dis_outer_insertion - disable outer VLAN insertion
616 * @vsi: VSI to configure
617 *
618 * Disable outer VLAN insertion via VSI context. This function should only be
619 * used if DVM is supported. Also, this function should never be called directly
620 * as it should be part of ice_vsi_vlan_ops if it's needed.
621 *
622 * Only modify the outer VLAN insertion settings. The VLAN TPID and outer VLAN
623 * settings are unmodified.
624 *
625 * This tells the hardware to not allow any VLAN tagged packets in the transmit
626 * descriptor. This enables software offloaded VLAN insertion and disables
627 * hardware offloaded VLAN insertion.
628 */
629int ice_vsi_dis_outer_insertion(struct ice_vsi *vsi)
630{
631 struct ice_hw *hw = &vsi->back->hw;
632 struct ice_vsi_ctx *ctxt;
633 int err;
634
635 if (vsi->info.port_based_outer_vlan)
636 return 0;
637
638 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
639 if (!ctxt)
640 return -ENOMEM;
641
642 ctxt->info.valid_sections =
643 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID);
644 /* clear current outer VLAN insertion settings */
645 ctxt->info.outer_vlan_flags = vsi->info.outer_vlan_flags &
646 ~(ICE_AQ_VSI_OUTER_VLAN_PORT_BASED_INSERT |
647 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M);
648 ctxt->info.outer_vlan_flags |=
649 ICE_AQ_VSI_OUTER_VLAN_BLOCK_TX_DESC |
650 FIELD_PREP(ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M,
651 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ALL);
652
653 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
654 if (err)
655 dev_err(ice_pf_to_dev(vsi->back), "update VSI for disabling outer VLAN insertion failed, err %d aq_err %s\n",
656 err, ice_aq_str(hw->adminq.sq_last_status));
657 else
658 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags;
659
660 kfree(ctxt);
661 return err;
662}
663
664/**
665 * __ice_vsi_set_outer_port_vlan - set the outer port VLAN and related settings
666 * @vsi: VSI to configure
667 * @vlan_info: packed u16 that contains the VLAN prio and ID
668 * @tpid: TPID of the port VLAN
669 *
670 * Set the port VLAN prio, ID, and TPID.
671 *
672 * Enable VLAN pruning so the VSI doesn't receive any traffic that doesn't match
673 * a VLAN prune rule. The caller should take care to add a VLAN prune rule that
674 * matches the port VLAN ID and TPID.
675 *
676 * Tell hardware to strip outer VLAN tagged packets on receive and don't put
677 * them in the receive descriptor. VSI(s) in port VLANs should not be aware of
678 * the port VLAN ID or TPID they are assigned to.
679 *
680 * Tell hardware to prevent outer VLAN tag insertion on transmit and only allow
681 * untagged outer packets from the transmit descriptor.
682 *
683 * Also, tell the hardware to insert the port VLAN on transmit.
684 */
685static int
686__ice_vsi_set_outer_port_vlan(struct ice_vsi *vsi, u16 vlan_info, u16 tpid)
687{
688 struct ice_hw *hw = &vsi->back->hw;
689 struct ice_vsi_ctx *ctxt;
690 u8 tag_type;
691 int err;
692
693 if (tpid_to_vsi_outer_vlan_type(tpid, &tag_type))
694 return -EINVAL;
695
696 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
697 if (!ctxt)
698 return -ENOMEM;
699
700 ice_save_vlan_info(&vsi->info, &vsi->vlan_info);
701 ctxt->info = vsi->info;
702
703 ctxt->info.sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
704
705 ctxt->info.port_based_outer_vlan = cpu_to_le16(vlan_info);
706 ctxt->info.outer_vlan_flags =
707 (ICE_AQ_VSI_OUTER_VLAN_EMODE_SHOW <<
708 ICE_AQ_VSI_OUTER_VLAN_EMODE_S) |
709 FIELD_PREP(ICE_AQ_VSI_OUTER_TAG_TYPE_M, tag_type) |
710 ICE_AQ_VSI_OUTER_VLAN_BLOCK_TX_DESC |
711 (ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ACCEPTUNTAGGED <<
712 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_S) |
713 ICE_AQ_VSI_OUTER_VLAN_PORT_BASED_INSERT;
714
715 ctxt->info.valid_sections =
716 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID |
717 ICE_AQ_VSI_PROP_SW_VALID);
718
719 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
720 if (err) {
721 dev_err(ice_pf_to_dev(vsi->back), "update VSI for setting outer port based VLAN failed, err %d aq_err %s\n",
722 err, ice_aq_str(hw->adminq.sq_last_status));
723 } else {
724 vsi->info.port_based_outer_vlan = ctxt->info.port_based_outer_vlan;
725 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags;
726 vsi->info.sw_flags2 = ctxt->info.sw_flags2;
727 }
728
729 kfree(ctxt);
730 return err;
731}
732
733/**
734 * ice_vsi_set_outer_port_vlan - public version of __ice_vsi_set_outer_port_vlan
735 * @vsi: VSI to configure
736 * @vlan: ice_vlan structure used to set the port VLAN
737 *
738 * Set the outer port VLAN via VSI context. This function should only be
739 * used if DVM is supported. Also, this function should never be called directly
740 * as it should be part of ice_vsi_vlan_ops if it's needed.
741 *
742 * Use the ice_vlan structure passed in to set this VSI in a port VLAN.
743 */
744int ice_vsi_set_outer_port_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
745{
746 u16 port_vlan_info;
747
748 if (vlan->prio > (VLAN_PRIO_MASK >> VLAN_PRIO_SHIFT))
749 return -EINVAL;
750
751 port_vlan_info = vlan->vid | (vlan->prio << VLAN_PRIO_SHIFT);
752
753 return __ice_vsi_set_outer_port_vlan(vsi, port_vlan_info, vlan->tpid);
754}
755
756/**
757 * ice_vsi_clear_outer_port_vlan - clear outer port vlan
758 * @vsi: VSI to configure
759 *
760 * The function is restoring previously set vlan config (saved in
761 * vsi->vlan_info). Setting happens in port vlan configuration.
762 */
763int ice_vsi_clear_outer_port_vlan(struct ice_vsi *vsi)
764{
765 struct ice_hw *hw = &vsi->back->hw;
766 struct ice_vsi_ctx *ctxt;
767 int err;
768
769 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
770 if (!ctxt)
771 return -ENOMEM;
772
773 ice_restore_vlan_info(&vsi->info, &vsi->vlan_info);
774 vsi->info.port_based_outer_vlan = 0;
775 ctxt->info = vsi->info;
776
777 ctxt->info.valid_sections =
778 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID |
779 ICE_AQ_VSI_PROP_SW_VALID);
780
781 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
782 if (err)
783 dev_err(ice_pf_to_dev(vsi->back), "update VSI for clearing outer port based VLAN failed, err %d aq_err %s\n",
784 err, ice_aq_str(hw->adminq.sq_last_status));
785
786 kfree(ctxt);
787 return err;
788}
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright (C) 2019-2021, Intel Corporation. */
3
4#include "ice_vsi_vlan_lib.h"
5#include "ice_lib.h"
6#include "ice_fltr.h"
7#include "ice.h"
8
9static void print_invalid_tpid(struct ice_vsi *vsi, u16 tpid)
10{
11 dev_err(ice_pf_to_dev(vsi->back), "%s %d specified invalid VLAN tpid 0x%04x\n",
12 ice_vsi_type_str(vsi->type), vsi->idx, tpid);
13}
14
15/**
16 * validate_vlan - check if the ice_vlan passed in is valid
17 * @vsi: VSI used for printing error message
18 * @vlan: ice_vlan structure to validate
19 *
20 * Return true if the VLAN TPID is valid or if the VLAN TPID is 0 and the VLAN
21 * VID is 0, which allows for non-zero VLAN filters with the specified VLAN TPID
22 * and untagged VLAN 0 filters to be added to the prune list respectively.
23 */
24static bool validate_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
25{
26 if (vlan->tpid != ETH_P_8021Q && vlan->tpid != ETH_P_8021AD &&
27 vlan->tpid != ETH_P_QINQ1 && (vlan->tpid || vlan->vid)) {
28 print_invalid_tpid(vsi, vlan->tpid);
29 return false;
30 }
31
32 return true;
33}
34
35/**
36 * ice_vsi_add_vlan - default add VLAN implementation for all VSI types
37 * @vsi: VSI being configured
38 * @vlan: VLAN filter to add
39 */
40int ice_vsi_add_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
41{
42 int err;
43
44 if (!validate_vlan(vsi, vlan))
45 return -EINVAL;
46
47 err = ice_fltr_add_vlan(vsi, vlan);
48 if (err && err != -EEXIST) {
49 dev_err(ice_pf_to_dev(vsi->back), "Failure Adding VLAN %d on VSI %i, status %d\n",
50 vlan->vid, vsi->vsi_num, err);
51 return err;
52 }
53
54 vsi->num_vlan++;
55 return 0;
56}
57
58/**
59 * ice_vsi_del_vlan - default del VLAN implementation for all VSI types
60 * @vsi: VSI being configured
61 * @vlan: VLAN filter to delete
62 */
63int ice_vsi_del_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
64{
65 struct ice_pf *pf = vsi->back;
66 struct device *dev;
67 int err;
68
69 if (!validate_vlan(vsi, vlan))
70 return -EINVAL;
71
72 dev = ice_pf_to_dev(pf);
73
74 err = ice_fltr_remove_vlan(vsi, vlan);
75 if (!err)
76 vsi->num_vlan--;
77 else if (err == -ENOENT || err == -EBUSY)
78 err = 0;
79 else
80 dev_err(dev, "Error removing VLAN %d on VSI %i error: %d\n",
81 vlan->vid, vsi->vsi_num, err);
82
83 return err;
84}
85
86/**
87 * ice_vsi_manage_vlan_insertion - Manage VLAN insertion for the VSI for Tx
88 * @vsi: the VSI being changed
89 */
90static int ice_vsi_manage_vlan_insertion(struct ice_vsi *vsi)
91{
92 struct ice_hw *hw = &vsi->back->hw;
93 struct ice_vsi_ctx *ctxt;
94 int err;
95
96 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
97 if (!ctxt)
98 return -ENOMEM;
99
100 /* Here we are configuring the VSI to let the driver add VLAN tags by
101 * setting inner_vlan_flags to ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL. The actual VLAN tag
102 * insertion happens in the Tx hot path, in ice_tx_map.
103 */
104 ctxt->info.inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL;
105
106 /* Preserve existing VLAN strip setting */
107 ctxt->info.inner_vlan_flags |= (vsi->info.inner_vlan_flags &
108 ICE_AQ_VSI_INNER_VLAN_EMODE_M);
109
110 ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID);
111
112 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
113 if (err) {
114 dev_err(ice_pf_to_dev(vsi->back), "update VSI for VLAN insert failed, err %d aq_err %s\n",
115 err, ice_aq_str(hw->adminq.sq_last_status));
116 goto out;
117 }
118
119 vsi->info.inner_vlan_flags = ctxt->info.inner_vlan_flags;
120out:
121 kfree(ctxt);
122 return err;
123}
124
125/**
126 * ice_vsi_manage_vlan_stripping - Manage VLAN stripping for the VSI for Rx
127 * @vsi: the VSI being changed
128 * @ena: boolean value indicating if this is a enable or disable request
129 */
130static int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena)
131{
132 struct ice_hw *hw = &vsi->back->hw;
133 struct ice_vsi_ctx *ctxt;
134 int err;
135
136 /* do not allow modifying VLAN stripping when a port VLAN is configured
137 * on this VSI
138 */
139 if (vsi->info.port_based_inner_vlan)
140 return 0;
141
142 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
143 if (!ctxt)
144 return -ENOMEM;
145
146 /* Here we are configuring what the VSI should do with the VLAN tag in
147 * the Rx packet. We can either leave the tag in the packet or put it in
148 * the Rx descriptor.
149 */
150 if (ena)
151 /* Strip VLAN tag from Rx packet and put it in the desc */
152 ctxt->info.inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_EMODE_STR_BOTH;
153 else
154 /* Disable stripping. Leave tag in packet */
155 ctxt->info.inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_EMODE_NOTHING;
156
157 /* Allow all packets untagged/tagged */
158 ctxt->info.inner_vlan_flags |= ICE_AQ_VSI_INNER_VLAN_TX_MODE_ALL;
159
160 ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID);
161
162 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
163 if (err) {
164 dev_err(ice_pf_to_dev(vsi->back), "update VSI for VLAN strip failed, ena = %d err %d aq_err %s\n",
165 ena, err, ice_aq_str(hw->adminq.sq_last_status));
166 goto out;
167 }
168
169 vsi->info.inner_vlan_flags = ctxt->info.inner_vlan_flags;
170out:
171 kfree(ctxt);
172 return err;
173}
174
175int ice_vsi_ena_inner_stripping(struct ice_vsi *vsi, const u16 tpid)
176{
177 if (tpid != ETH_P_8021Q) {
178 print_invalid_tpid(vsi, tpid);
179 return -EINVAL;
180 }
181
182 return ice_vsi_manage_vlan_stripping(vsi, true);
183}
184
185int ice_vsi_dis_inner_stripping(struct ice_vsi *vsi)
186{
187 return ice_vsi_manage_vlan_stripping(vsi, false);
188}
189
190int ice_vsi_ena_inner_insertion(struct ice_vsi *vsi, const u16 tpid)
191{
192 if (tpid != ETH_P_8021Q) {
193 print_invalid_tpid(vsi, tpid);
194 return -EINVAL;
195 }
196
197 return ice_vsi_manage_vlan_insertion(vsi);
198}
199
200int ice_vsi_dis_inner_insertion(struct ice_vsi *vsi)
201{
202 return ice_vsi_manage_vlan_insertion(vsi);
203}
204
205/**
206 * __ice_vsi_set_inner_port_vlan - set port VLAN VSI context settings to enable a port VLAN
207 * @vsi: the VSI to update
208 * @pvid_info: VLAN ID and QoS used to set the PVID VSI context field
209 */
210static int __ice_vsi_set_inner_port_vlan(struct ice_vsi *vsi, u16 pvid_info)
211{
212 struct ice_hw *hw = &vsi->back->hw;
213 struct ice_aqc_vsi_props *info;
214 struct ice_vsi_ctx *ctxt;
215 int ret;
216
217 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
218 if (!ctxt)
219 return -ENOMEM;
220
221 ctxt->info = vsi->info;
222 info = &ctxt->info;
223 info->inner_vlan_flags = ICE_AQ_VSI_INNER_VLAN_TX_MODE_ACCEPTUNTAGGED |
224 ICE_AQ_VSI_INNER_VLAN_INSERT_PVID |
225 ICE_AQ_VSI_INNER_VLAN_EMODE_STR;
226 info->sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
227
228 info->port_based_inner_vlan = cpu_to_le16(pvid_info);
229 info->valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID |
230 ICE_AQ_VSI_PROP_SW_VALID);
231
232 ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
233 if (ret) {
234 dev_info(ice_hw_to_dev(hw), "update VSI for port VLAN failed, err %d aq_err %s\n",
235 ret, ice_aq_str(hw->adminq.sq_last_status));
236 goto out;
237 }
238
239 vsi->info.inner_vlan_flags = info->inner_vlan_flags;
240 vsi->info.sw_flags2 = info->sw_flags2;
241 vsi->info.port_based_inner_vlan = info->port_based_inner_vlan;
242out:
243 kfree(ctxt);
244 return ret;
245}
246
247int ice_vsi_set_inner_port_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
248{
249 u16 port_vlan_info;
250
251 if (vlan->tpid != ETH_P_8021Q)
252 return -EINVAL;
253
254 if (vlan->prio > 7)
255 return -EINVAL;
256
257 port_vlan_info = vlan->vid | (vlan->prio << VLAN_PRIO_SHIFT);
258
259 return __ice_vsi_set_inner_port_vlan(vsi, port_vlan_info);
260}
261
262/**
263 * ice_cfg_vlan_pruning - enable or disable VLAN pruning on the VSI
264 * @vsi: VSI to enable or disable VLAN pruning on
265 * @ena: set to true to enable VLAN pruning and false to disable it
266 *
267 * returns 0 if VSI is updated, negative otherwise
268 */
269static int ice_cfg_vlan_pruning(struct ice_vsi *vsi, bool ena)
270{
271 struct ice_vsi_ctx *ctxt;
272 struct ice_pf *pf;
273 int status;
274
275 if (!vsi)
276 return -EINVAL;
277
278 /* Don't enable VLAN pruning if the netdev is currently in promiscuous
279 * mode. VLAN pruning will be enabled when the interface exits
280 * promiscuous mode if any VLAN filters are active.
281 */
282 if (vsi->netdev && vsi->netdev->flags & IFF_PROMISC && ena)
283 return 0;
284
285 pf = vsi->back;
286 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
287 if (!ctxt)
288 return -ENOMEM;
289
290 ctxt->info = vsi->info;
291
292 if (ena)
293 ctxt->info.sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
294 else
295 ctxt->info.sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
296
297 ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SW_VALID);
298
299 status = ice_update_vsi(&pf->hw, vsi->idx, ctxt, NULL);
300 if (status) {
301 netdev_err(vsi->netdev, "%sabling VLAN pruning on VSI handle: %d, VSI HW ID: %d failed, err = %d, aq_err = %s\n",
302 ena ? "En" : "Dis", vsi->idx, vsi->vsi_num, status,
303 ice_aq_str(pf->hw.adminq.sq_last_status));
304 goto err_out;
305 }
306
307 vsi->info.sw_flags2 = ctxt->info.sw_flags2;
308
309 kfree(ctxt);
310 return 0;
311
312err_out:
313 kfree(ctxt);
314 return status;
315}
316
317int ice_vsi_ena_rx_vlan_filtering(struct ice_vsi *vsi)
318{
319 return ice_cfg_vlan_pruning(vsi, true);
320}
321
322int ice_vsi_dis_rx_vlan_filtering(struct ice_vsi *vsi)
323{
324 return ice_cfg_vlan_pruning(vsi, false);
325}
326
327static int ice_cfg_vlan_antispoof(struct ice_vsi *vsi, bool enable)
328{
329 struct ice_vsi_ctx *ctx;
330 int err;
331
332 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
333 if (!ctx)
334 return -ENOMEM;
335
336 ctx->info.sec_flags = vsi->info.sec_flags;
337 ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID);
338
339 if (enable)
340 ctx->info.sec_flags |= ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
341 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S;
342 else
343 ctx->info.sec_flags &= ~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA <<
344 ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S);
345
346 err = ice_update_vsi(&vsi->back->hw, vsi->idx, ctx, NULL);
347 if (err)
348 dev_err(ice_pf_to_dev(vsi->back), "Failed to configure Tx VLAN anti-spoof %s for VSI %d, error %d\n",
349 enable ? "ON" : "OFF", vsi->vsi_num, err);
350 else
351 vsi->info.sec_flags = ctx->info.sec_flags;
352
353 kfree(ctx);
354
355 return err;
356}
357
358int ice_vsi_ena_tx_vlan_filtering(struct ice_vsi *vsi)
359{
360 return ice_cfg_vlan_antispoof(vsi, true);
361}
362
363int ice_vsi_dis_tx_vlan_filtering(struct ice_vsi *vsi)
364{
365 return ice_cfg_vlan_antispoof(vsi, false);
366}
367
368/**
369 * tpid_to_vsi_outer_vlan_type - convert from TPID to VSI context based tag_type
370 * @tpid: tpid used to translate into VSI context based tag_type
371 * @tag_type: output variable to hold the VSI context based tag type
372 */
373static int tpid_to_vsi_outer_vlan_type(u16 tpid, u8 *tag_type)
374{
375 switch (tpid) {
376 case ETH_P_8021Q:
377 *tag_type = ICE_AQ_VSI_OUTER_TAG_VLAN_8100;
378 break;
379 case ETH_P_8021AD:
380 *tag_type = ICE_AQ_VSI_OUTER_TAG_STAG;
381 break;
382 case ETH_P_QINQ1:
383 *tag_type = ICE_AQ_VSI_OUTER_TAG_VLAN_9100;
384 break;
385 default:
386 *tag_type = 0;
387 return -EINVAL;
388 }
389
390 return 0;
391}
392
393/**
394 * ice_vsi_ena_outer_stripping - enable outer VLAN stripping
395 * @vsi: VSI to configure
396 * @tpid: TPID to enable outer VLAN stripping for
397 *
398 * Enable outer VLAN stripping via VSI context. This function should only be
399 * used if DVM is supported. Also, this function should never be called directly
400 * as it should be part of ice_vsi_vlan_ops if it's needed.
401 *
402 * Since the VSI context only supports a single TPID for insertion and
403 * stripping, setting the TPID for stripping will affect the TPID for insertion.
404 * Callers need to be aware of this limitation.
405 *
406 * Only modify outer VLAN stripping settings and the VLAN TPID. Outer VLAN
407 * insertion settings are unmodified.
408 *
409 * This enables hardware to strip a VLAN tag with the specified TPID to be
410 * stripped from the packet and placed in the receive descriptor.
411 */
412int ice_vsi_ena_outer_stripping(struct ice_vsi *vsi, u16 tpid)
413{
414 struct ice_hw *hw = &vsi->back->hw;
415 struct ice_vsi_ctx *ctxt;
416 u8 tag_type;
417 int err;
418
419 /* do not allow modifying VLAN stripping when a port VLAN is configured
420 * on this VSI
421 */
422 if (vsi->info.port_based_outer_vlan)
423 return 0;
424
425 if (tpid_to_vsi_outer_vlan_type(tpid, &tag_type))
426 return -EINVAL;
427
428 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
429 if (!ctxt)
430 return -ENOMEM;
431
432 ctxt->info.valid_sections =
433 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID);
434 /* clear current outer VLAN strip settings */
435 ctxt->info.outer_vlan_flags = vsi->info.outer_vlan_flags &
436 ~(ICE_AQ_VSI_OUTER_VLAN_EMODE_M | ICE_AQ_VSI_OUTER_TAG_TYPE_M);
437 ctxt->info.outer_vlan_flags |=
438 ((ICE_AQ_VSI_OUTER_VLAN_EMODE_SHOW_BOTH <<
439 ICE_AQ_VSI_OUTER_VLAN_EMODE_S) |
440 ((tag_type << ICE_AQ_VSI_OUTER_TAG_TYPE_S) &
441 ICE_AQ_VSI_OUTER_TAG_TYPE_M));
442
443 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
444 if (err)
445 dev_err(ice_pf_to_dev(vsi->back), "update VSI for enabling outer VLAN stripping failed, err %d aq_err %s\n",
446 err, ice_aq_str(hw->adminq.sq_last_status));
447 else
448 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags;
449
450 kfree(ctxt);
451 return err;
452}
453
454/**
455 * ice_vsi_dis_outer_stripping - disable outer VLAN stripping
456 * @vsi: VSI to configure
457 *
458 * Disable outer VLAN stripping via VSI context. This function should only be
459 * used if DVM is supported. Also, this function should never be called directly
460 * as it should be part of ice_vsi_vlan_ops if it's needed.
461 *
462 * Only modify the outer VLAN stripping settings. The VLAN TPID and outer VLAN
463 * insertion settings are unmodified.
464 *
465 * This tells the hardware to not strip any VLAN tagged packets, thus leaving
466 * them in the packet. This enables software offloaded VLAN stripping and
467 * disables hardware offloaded VLAN stripping.
468 */
469int ice_vsi_dis_outer_stripping(struct ice_vsi *vsi)
470{
471 struct ice_hw *hw = &vsi->back->hw;
472 struct ice_vsi_ctx *ctxt;
473 int err;
474
475 if (vsi->info.port_based_outer_vlan)
476 return 0;
477
478 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
479 if (!ctxt)
480 return -ENOMEM;
481
482 ctxt->info.valid_sections =
483 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID);
484 /* clear current outer VLAN strip settings */
485 ctxt->info.outer_vlan_flags = vsi->info.outer_vlan_flags &
486 ~ICE_AQ_VSI_OUTER_VLAN_EMODE_M;
487 ctxt->info.outer_vlan_flags |= ICE_AQ_VSI_OUTER_VLAN_EMODE_NOTHING <<
488 ICE_AQ_VSI_OUTER_VLAN_EMODE_S;
489
490 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
491 if (err)
492 dev_err(ice_pf_to_dev(vsi->back), "update VSI for disabling outer VLAN stripping failed, err %d aq_err %s\n",
493 err, ice_aq_str(hw->adminq.sq_last_status));
494 else
495 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags;
496
497 kfree(ctxt);
498 return err;
499}
500
501/**
502 * ice_vsi_ena_outer_insertion - enable outer VLAN insertion
503 * @vsi: VSI to configure
504 * @tpid: TPID to enable outer VLAN insertion for
505 *
506 * Enable outer VLAN insertion via VSI context. This function should only be
507 * used if DVM is supported. Also, this function should never be called directly
508 * as it should be part of ice_vsi_vlan_ops if it's needed.
509 *
510 * Since the VSI context only supports a single TPID for insertion and
511 * stripping, setting the TPID for insertion will affect the TPID for stripping.
512 * Callers need to be aware of this limitation.
513 *
514 * Only modify outer VLAN insertion settings and the VLAN TPID. Outer VLAN
515 * stripping settings are unmodified.
516 *
517 * This allows a VLAN tag with the specified TPID to be inserted in the transmit
518 * descriptor.
519 */
520int ice_vsi_ena_outer_insertion(struct ice_vsi *vsi, u16 tpid)
521{
522 struct ice_hw *hw = &vsi->back->hw;
523 struct ice_vsi_ctx *ctxt;
524 u8 tag_type;
525 int err;
526
527 if (vsi->info.port_based_outer_vlan)
528 return 0;
529
530 if (tpid_to_vsi_outer_vlan_type(tpid, &tag_type))
531 return -EINVAL;
532
533 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
534 if (!ctxt)
535 return -ENOMEM;
536
537 ctxt->info.valid_sections =
538 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID);
539 /* clear current outer VLAN insertion settings */
540 ctxt->info.outer_vlan_flags = vsi->info.outer_vlan_flags &
541 ~(ICE_AQ_VSI_OUTER_VLAN_PORT_BASED_INSERT |
542 ICE_AQ_VSI_OUTER_VLAN_BLOCK_TX_DESC |
543 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M |
544 ICE_AQ_VSI_OUTER_TAG_TYPE_M);
545 ctxt->info.outer_vlan_flags |=
546 ((ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ALL <<
547 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_S) &
548 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M) |
549 ((tag_type << ICE_AQ_VSI_OUTER_TAG_TYPE_S) &
550 ICE_AQ_VSI_OUTER_TAG_TYPE_M);
551
552 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
553 if (err)
554 dev_err(ice_pf_to_dev(vsi->back), "update VSI for enabling outer VLAN insertion failed, err %d aq_err %s\n",
555 err, ice_aq_str(hw->adminq.sq_last_status));
556 else
557 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags;
558
559 kfree(ctxt);
560 return err;
561}
562
563/**
564 * ice_vsi_dis_outer_insertion - disable outer VLAN insertion
565 * @vsi: VSI to configure
566 *
567 * Disable outer VLAN insertion via VSI context. This function should only be
568 * used if DVM is supported. Also, this function should never be called directly
569 * as it should be part of ice_vsi_vlan_ops if it's needed.
570 *
571 * Only modify the outer VLAN insertion settings. The VLAN TPID and outer VLAN
572 * settings are unmodified.
573 *
574 * This tells the hardware to not allow any VLAN tagged packets in the transmit
575 * descriptor. This enables software offloaded VLAN insertion and disables
576 * hardware offloaded VLAN insertion.
577 */
578int ice_vsi_dis_outer_insertion(struct ice_vsi *vsi)
579{
580 struct ice_hw *hw = &vsi->back->hw;
581 struct ice_vsi_ctx *ctxt;
582 int err;
583
584 if (vsi->info.port_based_outer_vlan)
585 return 0;
586
587 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
588 if (!ctxt)
589 return -ENOMEM;
590
591 ctxt->info.valid_sections =
592 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID);
593 /* clear current outer VLAN insertion settings */
594 ctxt->info.outer_vlan_flags = vsi->info.outer_vlan_flags &
595 ~(ICE_AQ_VSI_OUTER_VLAN_PORT_BASED_INSERT |
596 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M);
597 ctxt->info.outer_vlan_flags |=
598 ICE_AQ_VSI_OUTER_VLAN_BLOCK_TX_DESC |
599 ((ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ALL <<
600 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_S) &
601 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_M);
602
603 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
604 if (err)
605 dev_err(ice_pf_to_dev(vsi->back), "update VSI for disabling outer VLAN insertion failed, err %d aq_err %s\n",
606 err, ice_aq_str(hw->adminq.sq_last_status));
607 else
608 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags;
609
610 kfree(ctxt);
611 return err;
612}
613
614/**
615 * __ice_vsi_set_outer_port_vlan - set the outer port VLAN and related settings
616 * @vsi: VSI to configure
617 * @vlan_info: packed u16 that contains the VLAN prio and ID
618 * @tpid: TPID of the port VLAN
619 *
620 * Set the port VLAN prio, ID, and TPID.
621 *
622 * Enable VLAN pruning so the VSI doesn't receive any traffic that doesn't match
623 * a VLAN prune rule. The caller should take care to add a VLAN prune rule that
624 * matches the port VLAN ID and TPID.
625 *
626 * Tell hardware to strip outer VLAN tagged packets on receive and don't put
627 * them in the receive descriptor. VSI(s) in port VLANs should not be aware of
628 * the port VLAN ID or TPID they are assigned to.
629 *
630 * Tell hardware to prevent outer VLAN tag insertion on transmit and only allow
631 * untagged outer packets from the transmit descriptor.
632 *
633 * Also, tell the hardware to insert the port VLAN on transmit.
634 */
635static int
636__ice_vsi_set_outer_port_vlan(struct ice_vsi *vsi, u16 vlan_info, u16 tpid)
637{
638 struct ice_hw *hw = &vsi->back->hw;
639 struct ice_vsi_ctx *ctxt;
640 u8 tag_type;
641 int err;
642
643 if (tpid_to_vsi_outer_vlan_type(tpid, &tag_type))
644 return -EINVAL;
645
646 ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL);
647 if (!ctxt)
648 return -ENOMEM;
649
650 ctxt->info = vsi->info;
651
652 ctxt->info.sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA;
653
654 ctxt->info.port_based_outer_vlan = cpu_to_le16(vlan_info);
655 ctxt->info.outer_vlan_flags =
656 (ICE_AQ_VSI_OUTER_VLAN_EMODE_SHOW <<
657 ICE_AQ_VSI_OUTER_VLAN_EMODE_S) |
658 ((tag_type << ICE_AQ_VSI_OUTER_TAG_TYPE_S) &
659 ICE_AQ_VSI_OUTER_TAG_TYPE_M) |
660 ICE_AQ_VSI_OUTER_VLAN_BLOCK_TX_DESC |
661 (ICE_AQ_VSI_OUTER_VLAN_TX_MODE_ACCEPTUNTAGGED <<
662 ICE_AQ_VSI_OUTER_VLAN_TX_MODE_S) |
663 ICE_AQ_VSI_OUTER_VLAN_PORT_BASED_INSERT;
664
665 ctxt->info.valid_sections =
666 cpu_to_le16(ICE_AQ_VSI_PROP_OUTER_TAG_VALID |
667 ICE_AQ_VSI_PROP_SW_VALID);
668
669 err = ice_update_vsi(hw, vsi->idx, ctxt, NULL);
670 if (err) {
671 dev_err(ice_pf_to_dev(vsi->back), "update VSI for setting outer port based VLAN failed, err %d aq_err %s\n",
672 err, ice_aq_str(hw->adminq.sq_last_status));
673 } else {
674 vsi->info.port_based_outer_vlan = ctxt->info.port_based_outer_vlan;
675 vsi->info.outer_vlan_flags = ctxt->info.outer_vlan_flags;
676 vsi->info.sw_flags2 = ctxt->info.sw_flags2;
677 }
678
679 kfree(ctxt);
680 return err;
681}
682
683/**
684 * ice_vsi_set_outer_port_vlan - public version of __ice_vsi_set_outer_port_vlan
685 * @vsi: VSI to configure
686 * @vlan: ice_vlan structure used to set the port VLAN
687 *
688 * Set the outer port VLAN via VSI context. This function should only be
689 * used if DVM is supported. Also, this function should never be called directly
690 * as it should be part of ice_vsi_vlan_ops if it's needed.
691 *
692 * This function does not support clearing the port VLAN as there is currently
693 * no use case for this.
694 *
695 * Use the ice_vlan structure passed in to set this VSI in a port VLAN.
696 */
697int ice_vsi_set_outer_port_vlan(struct ice_vsi *vsi, struct ice_vlan *vlan)
698{
699 u16 port_vlan_info;
700
701 if (vlan->prio > (VLAN_PRIO_MASK >> VLAN_PRIO_SHIFT))
702 return -EINVAL;
703
704 port_vlan_info = vlan->vid | (vlan->prio << VLAN_PRIO_SHIFT);
705
706 return __ice_vsi_set_outer_port_vlan(vsi, port_vlan_info, vlan->tpid);
707}