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1// SPDX-License-Identifier: GPL-2.0
2/* Copyright (c) 2019, Intel Corporation. */
3
4#include "ice_common.h"
5#include "ice_sched.h"
6#include "ice_dcb.h"
7
8/**
9 * ice_aq_get_lldp_mib
10 * @hw: pointer to the HW struct
11 * @bridge_type: type of bridge requested
12 * @mib_type: Local, Remote or both Local and Remote MIBs
13 * @buf: pointer to the caller-supplied buffer to store the MIB block
14 * @buf_size: size of the buffer (in bytes)
15 * @local_len: length of the returned Local LLDP MIB
16 * @remote_len: length of the returned Remote LLDP MIB
17 * @cd: pointer to command details structure or NULL
18 *
19 * Requests the complete LLDP MIB (entire packet). (0x0A00)
20 */
21static int
22ice_aq_get_lldp_mib(struct ice_hw *hw, u8 bridge_type, u8 mib_type, void *buf,
23 u16 buf_size, u16 *local_len, u16 *remote_len,
24 struct ice_sq_cd *cd)
25{
26 struct ice_aqc_lldp_get_mib *cmd;
27 struct ice_aq_desc desc;
28 int status;
29
30 cmd = &desc.params.lldp_get_mib;
31
32 if (buf_size == 0 || !buf)
33 return -EINVAL;
34
35 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_get_mib);
36
37 cmd->type = mib_type & ICE_AQ_LLDP_MIB_TYPE_M;
38 cmd->type |= FIELD_PREP(ICE_AQ_LLDP_BRID_TYPE_M, bridge_type);
39
40 desc.datalen = cpu_to_le16(buf_size);
41
42 status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
43 if (!status) {
44 if (local_len)
45 *local_len = le16_to_cpu(cmd->local_len);
46 if (remote_len)
47 *remote_len = le16_to_cpu(cmd->remote_len);
48 }
49
50 return status;
51}
52
53/**
54 * ice_aq_cfg_lldp_mib_change
55 * @hw: pointer to the HW struct
56 * @ena_update: Enable or Disable event posting
57 * @cd: pointer to command details structure or NULL
58 *
59 * Enable or Disable posting of an event on ARQ when LLDP MIB
60 * associated with the interface changes (0x0A01)
61 */
62static int
63ice_aq_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_update,
64 struct ice_sq_cd *cd)
65{
66 struct ice_aqc_lldp_set_mib_change *cmd;
67 struct ice_aq_desc desc;
68
69 cmd = &desc.params.lldp_set_event;
70
71 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_set_mib_change);
72
73 if (!ena_update)
74 cmd->command |= ICE_AQ_LLDP_MIB_UPDATE_DIS;
75 else
76 cmd->command |= FIELD_PREP(ICE_AQ_LLDP_MIB_PENDING_M,
77 ICE_AQ_LLDP_MIB_PENDING_ENABLE);
78
79 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
80}
81
82/**
83 * ice_aq_stop_lldp
84 * @hw: pointer to the HW struct
85 * @shutdown_lldp_agent: True if LLDP Agent needs to be Shutdown
86 * False if LLDP Agent needs to be Stopped
87 * @persist: True if Stop/Shutdown of LLDP Agent needs to be persistent across
88 * reboots
89 * @cd: pointer to command details structure or NULL
90 *
91 * Stop or Shutdown the embedded LLDP Agent (0x0A05)
92 */
93int
94ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent, bool persist,
95 struct ice_sq_cd *cd)
96{
97 struct ice_aqc_lldp_stop *cmd;
98 struct ice_aq_desc desc;
99
100 cmd = &desc.params.lldp_stop;
101
102 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_stop);
103
104 if (shutdown_lldp_agent)
105 cmd->command |= ICE_AQ_LLDP_AGENT_SHUTDOWN;
106
107 if (persist)
108 cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_DIS;
109
110 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
111}
112
113/**
114 * ice_aq_start_lldp
115 * @hw: pointer to the HW struct
116 * @persist: True if Start of LLDP Agent needs to be persistent across reboots
117 * @cd: pointer to command details structure or NULL
118 *
119 * Start the embedded LLDP Agent on all ports. (0x0A06)
120 */
121int ice_aq_start_lldp(struct ice_hw *hw, bool persist, struct ice_sq_cd *cd)
122{
123 struct ice_aqc_lldp_start *cmd;
124 struct ice_aq_desc desc;
125
126 cmd = &desc.params.lldp_start;
127
128 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_start);
129
130 cmd->command = ICE_AQ_LLDP_AGENT_START;
131
132 if (persist)
133 cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_ENA;
134
135 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
136}
137
138/**
139 * ice_get_dcbx_status
140 * @hw: pointer to the HW struct
141 *
142 * Get the DCBX status from the Firmware
143 */
144static u8 ice_get_dcbx_status(struct ice_hw *hw)
145{
146 u32 reg;
147
148 reg = rd32(hw, PRTDCB_GENS);
149 return FIELD_GET(PRTDCB_GENS_DCBX_STATUS_M, reg);
150}
151
152/**
153 * ice_parse_ieee_ets_common_tlv
154 * @buf: Data buffer to be parsed for ETS CFG/REC data
155 * @ets_cfg: Container to store parsed data
156 *
157 * Parses the common data of IEEE 802.1Qaz ETS CFG/REC TLV
158 */
159static void
160ice_parse_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
161{
162 u8 offset = 0;
163 int i;
164
165 /* Priority Assignment Table (4 octets)
166 * Octets:| 1 | 2 | 3 | 4 |
167 * -----------------------------------------
168 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
169 * -----------------------------------------
170 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
171 * -----------------------------------------
172 */
173 for (i = 0; i < 4; i++) {
174 ets_cfg->prio_table[i * 2] =
175 FIELD_GET(ICE_IEEE_ETS_PRIO_1_M, buf[offset]);
176 ets_cfg->prio_table[i * 2 + 1] =
177 FIELD_GET(ICE_IEEE_ETS_PRIO_0_M, buf[offset]);
178 offset++;
179 }
180
181 /* TC Bandwidth Table (8 octets)
182 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
183 * ---------------------------------
184 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
185 * ---------------------------------
186 *
187 * TSA Assignment Table (8 octets)
188 * Octets:| 9 | 10| 11| 12| 13| 14| 15| 16|
189 * ---------------------------------
190 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
191 * ---------------------------------
192 */
193 ice_for_each_traffic_class(i) {
194 ets_cfg->tcbwtable[i] = buf[offset];
195 ets_cfg->tsatable[i] = buf[ICE_MAX_TRAFFIC_CLASS + offset++];
196 }
197}
198
199/**
200 * ice_parse_ieee_etscfg_tlv
201 * @tlv: IEEE 802.1Qaz ETS CFG TLV
202 * @dcbcfg: Local store to update ETS CFG data
203 *
204 * Parses IEEE 802.1Qaz ETS CFG TLV
205 */
206static void
207ice_parse_ieee_etscfg_tlv(struct ice_lldp_org_tlv *tlv,
208 struct ice_dcbx_cfg *dcbcfg)
209{
210 struct ice_dcb_ets_cfg *etscfg;
211 u8 *buf = tlv->tlvinfo;
212
213 /* First Octet post subtype
214 * --------------------------
215 * |will-|CBS | Re- | Max |
216 * |ing | |served| TCs |
217 * --------------------------
218 * |1bit | 1bit|3 bits|3bits|
219 */
220 etscfg = &dcbcfg->etscfg;
221 etscfg->willing = FIELD_GET(ICE_IEEE_ETS_WILLING_M, buf[0]);
222 etscfg->cbs = FIELD_GET(ICE_IEEE_ETS_CBS_M, buf[0]);
223 etscfg->maxtcs = FIELD_GET(ICE_IEEE_ETS_MAXTC_M, buf[0]);
224
225 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */
226 ice_parse_ieee_ets_common_tlv(&buf[1], etscfg);
227}
228
229/**
230 * ice_parse_ieee_etsrec_tlv
231 * @tlv: IEEE 802.1Qaz ETS REC TLV
232 * @dcbcfg: Local store to update ETS REC data
233 *
234 * Parses IEEE 802.1Qaz ETS REC TLV
235 */
236static void
237ice_parse_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
238 struct ice_dcbx_cfg *dcbcfg)
239{
240 u8 *buf = tlv->tlvinfo;
241
242 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */
243 ice_parse_ieee_ets_common_tlv(&buf[1], &dcbcfg->etsrec);
244}
245
246/**
247 * ice_parse_ieee_pfccfg_tlv
248 * @tlv: IEEE 802.1Qaz PFC CFG TLV
249 * @dcbcfg: Local store to update PFC CFG data
250 *
251 * Parses IEEE 802.1Qaz PFC CFG TLV
252 */
253static void
254ice_parse_ieee_pfccfg_tlv(struct ice_lldp_org_tlv *tlv,
255 struct ice_dcbx_cfg *dcbcfg)
256{
257 u8 *buf = tlv->tlvinfo;
258
259 /* ----------------------------------------
260 * |will-|MBC | Re- | PFC | PFC Enable |
261 * |ing | |served| cap | |
262 * -----------------------------------------
263 * |1bit | 1bit|2 bits|4bits| 1 octet |
264 */
265 dcbcfg->pfc.willing = FIELD_GET(ICE_IEEE_PFC_WILLING_M, buf[0]);
266 dcbcfg->pfc.mbc = FIELD_GET(ICE_IEEE_PFC_MBC_M, buf[0]);
267 dcbcfg->pfc.pfccap = FIELD_GET(ICE_IEEE_PFC_CAP_M, buf[0]);
268 dcbcfg->pfc.pfcena = buf[1];
269}
270
271/**
272 * ice_parse_ieee_app_tlv
273 * @tlv: IEEE 802.1Qaz APP TLV
274 * @dcbcfg: Local store to update APP PRIO data
275 *
276 * Parses IEEE 802.1Qaz APP PRIO TLV
277 */
278static void
279ice_parse_ieee_app_tlv(struct ice_lldp_org_tlv *tlv,
280 struct ice_dcbx_cfg *dcbcfg)
281{
282 u16 offset = 0;
283 u16 typelen;
284 int i = 0;
285 u16 len;
286 u8 *buf;
287
288 typelen = ntohs(tlv->typelen);
289 len = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);
290 buf = tlv->tlvinfo;
291
292 /* Removing sizeof(ouisubtype) and reserved byte from len.
293 * Remaining len div 3 is number of APP TLVs.
294 */
295 len -= (sizeof(tlv->ouisubtype) + 1);
296
297 /* Move offset to App Priority Table */
298 offset++;
299
300 /* Application Priority Table (3 octets)
301 * Octets:| 1 | 2 | 3 |
302 * -----------------------------------------
303 * |Priority|Rsrvd| Sel | Protocol ID |
304 * -----------------------------------------
305 * Bits:|23 21|20 19|18 16|15 0|
306 * -----------------------------------------
307 */
308 while (offset < len) {
309 dcbcfg->app[i].priority = FIELD_GET(ICE_IEEE_APP_PRIO_M,
310 buf[offset]);
311 dcbcfg->app[i].selector = FIELD_GET(ICE_IEEE_APP_SEL_M,
312 buf[offset]);
313 dcbcfg->app[i].prot_id = (buf[offset + 1] << 0x8) |
314 buf[offset + 2];
315 /* Move to next app */
316 offset += 3;
317 i++;
318 if (i >= ICE_DCBX_MAX_APPS)
319 break;
320 }
321
322 dcbcfg->numapps = i;
323}
324
325/**
326 * ice_parse_ieee_tlv
327 * @tlv: IEEE 802.1Qaz TLV
328 * @dcbcfg: Local store to update ETS REC data
329 *
330 * Get the TLV subtype and send it to parsing function
331 * based on the subtype value
332 */
333static void
334ice_parse_ieee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
335{
336 u32 ouisubtype;
337 u8 subtype;
338
339 ouisubtype = ntohl(tlv->ouisubtype);
340 subtype = FIELD_GET(ICE_LLDP_TLV_SUBTYPE_M, ouisubtype);
341 switch (subtype) {
342 case ICE_IEEE_SUBTYPE_ETS_CFG:
343 ice_parse_ieee_etscfg_tlv(tlv, dcbcfg);
344 break;
345 case ICE_IEEE_SUBTYPE_ETS_REC:
346 ice_parse_ieee_etsrec_tlv(tlv, dcbcfg);
347 break;
348 case ICE_IEEE_SUBTYPE_PFC_CFG:
349 ice_parse_ieee_pfccfg_tlv(tlv, dcbcfg);
350 break;
351 case ICE_IEEE_SUBTYPE_APP_PRI:
352 ice_parse_ieee_app_tlv(tlv, dcbcfg);
353 break;
354 default:
355 break;
356 }
357}
358
359/**
360 * ice_parse_cee_pgcfg_tlv
361 * @tlv: CEE DCBX PG CFG TLV
362 * @dcbcfg: Local store to update ETS CFG data
363 *
364 * Parses CEE DCBX PG CFG TLV
365 */
366static void
367ice_parse_cee_pgcfg_tlv(struct ice_cee_feat_tlv *tlv,
368 struct ice_dcbx_cfg *dcbcfg)
369{
370 struct ice_dcb_ets_cfg *etscfg;
371 u8 *buf = tlv->tlvinfo;
372 u16 offset = 0;
373 int i;
374
375 etscfg = &dcbcfg->etscfg;
376
377 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
378 etscfg->willing = 1;
379
380 etscfg->cbs = 0;
381 /* Priority Group Table (4 octets)
382 * Octets:| 1 | 2 | 3 | 4 |
383 * -----------------------------------------
384 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
385 * -----------------------------------------
386 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
387 * -----------------------------------------
388 */
389 for (i = 0; i < 4; i++) {
390 etscfg->prio_table[i * 2] =
391 FIELD_GET(ICE_CEE_PGID_PRIO_1_M, buf[offset]);
392 etscfg->prio_table[i * 2 + 1] =
393 FIELD_GET(ICE_CEE_PGID_PRIO_0_M, buf[offset]);
394 offset++;
395 }
396
397 /* PG Percentage Table (8 octets)
398 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
399 * ---------------------------------
400 * |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7|
401 * ---------------------------------
402 */
403 ice_for_each_traffic_class(i) {
404 etscfg->tcbwtable[i] = buf[offset++];
405
406 if (etscfg->prio_table[i] == ICE_CEE_PGID_STRICT)
407 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
408 else
409 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
410 }
411
412 /* Number of TCs supported (1 octet) */
413 etscfg->maxtcs = buf[offset];
414}
415
416/**
417 * ice_parse_cee_pfccfg_tlv
418 * @tlv: CEE DCBX PFC CFG TLV
419 * @dcbcfg: Local store to update PFC CFG data
420 *
421 * Parses CEE DCBX PFC CFG TLV
422 */
423static void
424ice_parse_cee_pfccfg_tlv(struct ice_cee_feat_tlv *tlv,
425 struct ice_dcbx_cfg *dcbcfg)
426{
427 u8 *buf = tlv->tlvinfo;
428
429 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
430 dcbcfg->pfc.willing = 1;
431
432 /* ------------------------
433 * | PFC Enable | PFC TCs |
434 * ------------------------
435 * | 1 octet | 1 octet |
436 */
437 dcbcfg->pfc.pfcena = buf[0];
438 dcbcfg->pfc.pfccap = buf[1];
439}
440
441/**
442 * ice_parse_cee_app_tlv
443 * @tlv: CEE DCBX APP TLV
444 * @dcbcfg: Local store to update APP PRIO data
445 *
446 * Parses CEE DCBX APP PRIO TLV
447 */
448static void
449ice_parse_cee_app_tlv(struct ice_cee_feat_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
450{
451 u16 len, typelen, offset = 0;
452 struct ice_cee_app_prio *app;
453 u8 i;
454
455 typelen = ntohs(tlv->hdr.typelen);
456 len = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);
457
458 dcbcfg->numapps = len / sizeof(*app);
459 if (!dcbcfg->numapps)
460 return;
461 if (dcbcfg->numapps > ICE_DCBX_MAX_APPS)
462 dcbcfg->numapps = ICE_DCBX_MAX_APPS;
463
464 for (i = 0; i < dcbcfg->numapps; i++) {
465 u8 up, selector;
466
467 app = (struct ice_cee_app_prio *)(tlv->tlvinfo + offset);
468 for (up = 0; up < ICE_MAX_USER_PRIORITY; up++)
469 if (app->prio_map & BIT(up))
470 break;
471
472 dcbcfg->app[i].priority = up;
473
474 /* Get Selector from lower 2 bits, and convert to IEEE */
475 selector = (app->upper_oui_sel & ICE_CEE_APP_SELECTOR_M);
476 switch (selector) {
477 case ICE_CEE_APP_SEL_ETHTYPE:
478 dcbcfg->app[i].selector = ICE_APP_SEL_ETHTYPE;
479 break;
480 case ICE_CEE_APP_SEL_TCPIP:
481 dcbcfg->app[i].selector = ICE_APP_SEL_TCPIP;
482 break;
483 default:
484 /* Keep selector as it is for unknown types */
485 dcbcfg->app[i].selector = selector;
486 }
487
488 dcbcfg->app[i].prot_id = ntohs(app->protocol);
489 /* Move to next app */
490 offset += sizeof(*app);
491 }
492}
493
494/**
495 * ice_parse_cee_tlv
496 * @tlv: CEE DCBX TLV
497 * @dcbcfg: Local store to update DCBX config data
498 *
499 * Get the TLV subtype and send it to parsing function
500 * based on the subtype value
501 */
502static void
503ice_parse_cee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
504{
505 struct ice_cee_feat_tlv *sub_tlv;
506 u8 subtype, feat_tlv_count = 0;
507 u16 len, tlvlen, typelen;
508 u32 ouisubtype;
509
510 ouisubtype = ntohl(tlv->ouisubtype);
511 subtype = FIELD_GET(ICE_LLDP_TLV_SUBTYPE_M, ouisubtype);
512 /* Return if not CEE DCBX */
513 if (subtype != ICE_CEE_DCBX_TYPE)
514 return;
515
516 typelen = ntohs(tlv->typelen);
517 tlvlen = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);
518 len = sizeof(tlv->typelen) + sizeof(ouisubtype) +
519 sizeof(struct ice_cee_ctrl_tlv);
520 /* Return if no CEE DCBX Feature TLVs */
521 if (tlvlen <= len)
522 return;
523
524 sub_tlv = (struct ice_cee_feat_tlv *)((char *)tlv + len);
525 while (feat_tlv_count < ICE_CEE_MAX_FEAT_TYPE) {
526 u16 sublen;
527
528 typelen = ntohs(sub_tlv->hdr.typelen);
529 sublen = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);
530 subtype = FIELD_GET(ICE_LLDP_TLV_TYPE_M, typelen);
531 switch (subtype) {
532 case ICE_CEE_SUBTYPE_PG_CFG:
533 ice_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg);
534 break;
535 case ICE_CEE_SUBTYPE_PFC_CFG:
536 ice_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg);
537 break;
538 case ICE_CEE_SUBTYPE_APP_PRI:
539 ice_parse_cee_app_tlv(sub_tlv, dcbcfg);
540 break;
541 default:
542 return; /* Invalid Sub-type return */
543 }
544 feat_tlv_count++;
545 /* Move to next sub TLV */
546 sub_tlv = (struct ice_cee_feat_tlv *)
547 ((char *)sub_tlv + sizeof(sub_tlv->hdr.typelen) +
548 sublen);
549 }
550}
551
552/**
553 * ice_parse_org_tlv
554 * @tlv: Organization specific TLV
555 * @dcbcfg: Local store to update ETS REC data
556 *
557 * Currently IEEE 802.1Qaz and CEE DCBX TLV are supported, others
558 * will be returned
559 */
560static void
561ice_parse_org_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
562{
563 u32 ouisubtype;
564 u32 oui;
565
566 ouisubtype = ntohl(tlv->ouisubtype);
567 oui = FIELD_GET(ICE_LLDP_TLV_OUI_M, ouisubtype);
568 switch (oui) {
569 case ICE_IEEE_8021QAZ_OUI:
570 ice_parse_ieee_tlv(tlv, dcbcfg);
571 break;
572 case ICE_CEE_DCBX_OUI:
573 ice_parse_cee_tlv(tlv, dcbcfg);
574 break;
575 default:
576 break; /* Other OUIs not supported */
577 }
578}
579
580/**
581 * ice_lldp_to_dcb_cfg
582 * @lldpmib: LLDPDU to be parsed
583 * @dcbcfg: store for LLDPDU data
584 *
585 * Parse DCB configuration from the LLDPDU
586 */
587static int ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg)
588{
589 struct ice_lldp_org_tlv *tlv;
590 u16 offset = 0;
591 int ret = 0;
592 u16 typelen;
593 u16 type;
594 u16 len;
595
596 if (!lldpmib || !dcbcfg)
597 return -EINVAL;
598
599 /* set to the start of LLDPDU */
600 lldpmib += ETH_HLEN;
601 tlv = (struct ice_lldp_org_tlv *)lldpmib;
602 while (1) {
603 typelen = ntohs(tlv->typelen);
604 type = FIELD_GET(ICE_LLDP_TLV_TYPE_M, typelen);
605 len = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);
606 offset += sizeof(typelen) + len;
607
608 /* END TLV or beyond LLDPDU size */
609 if (type == ICE_TLV_TYPE_END || offset > ICE_LLDPDU_SIZE)
610 break;
611
612 switch (type) {
613 case ICE_TLV_TYPE_ORG:
614 ice_parse_org_tlv(tlv, dcbcfg);
615 break;
616 default:
617 break;
618 }
619
620 /* Move to next TLV */
621 tlv = (struct ice_lldp_org_tlv *)
622 ((char *)tlv + sizeof(tlv->typelen) + len);
623 }
624
625 return ret;
626}
627
628/**
629 * ice_aq_get_dcb_cfg
630 * @hw: pointer to the HW struct
631 * @mib_type: MIB type for the query
632 * @bridgetype: bridge type for the query (remote)
633 * @dcbcfg: store for LLDPDU data
634 *
635 * Query DCB configuration from the firmware
636 */
637int
638ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype,
639 struct ice_dcbx_cfg *dcbcfg)
640{
641 u8 *lldpmib;
642 int ret;
643
644 /* Allocate the LLDPDU */
645 lldpmib = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL);
646 if (!lldpmib)
647 return -ENOMEM;
648
649 ret = ice_aq_get_lldp_mib(hw, bridgetype, mib_type, (void *)lldpmib,
650 ICE_LLDPDU_SIZE, NULL, NULL, NULL);
651
652 if (!ret)
653 /* Parse LLDP MIB to get DCB configuration */
654 ret = ice_lldp_to_dcb_cfg(lldpmib, dcbcfg);
655
656 devm_kfree(ice_hw_to_dev(hw), lldpmib);
657
658 return ret;
659}
660
661/**
662 * ice_aq_start_stop_dcbx - Start/Stop DCBX service in FW
663 * @hw: pointer to the HW struct
664 * @start_dcbx_agent: True if DCBX Agent needs to be started
665 * False if DCBX Agent needs to be stopped
666 * @dcbx_agent_status: FW indicates back the DCBX agent status
667 * True if DCBX Agent is active
668 * False if DCBX Agent is stopped
669 * @cd: pointer to command details structure or NULL
670 *
671 * Start/Stop the embedded dcbx Agent. In case that this wrapper function
672 * returns 0, caller will need to check if FW returns back the same
673 * value as stated in dcbx_agent_status, and react accordingly. (0x0A09)
674 */
675int
676ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent,
677 bool *dcbx_agent_status, struct ice_sq_cd *cd)
678{
679 struct ice_aqc_lldp_stop_start_specific_agent *cmd;
680 struct ice_aq_desc desc;
681 u16 opcode;
682 int status;
683
684 cmd = &desc.params.lldp_agent_ctrl;
685
686 opcode = ice_aqc_opc_lldp_stop_start_specific_agent;
687
688 ice_fill_dflt_direct_cmd_desc(&desc, opcode);
689
690 if (start_dcbx_agent)
691 cmd->command = ICE_AQC_START_STOP_AGENT_START_DCBX;
692
693 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
694
695 *dcbx_agent_status = false;
696
697 if (!status &&
698 cmd->command == ICE_AQC_START_STOP_AGENT_START_DCBX)
699 *dcbx_agent_status = true;
700
701 return status;
702}
703
704/**
705 * ice_aq_get_cee_dcb_cfg
706 * @hw: pointer to the HW struct
707 * @buff: response buffer that stores CEE operational configuration
708 * @cd: pointer to command details structure or NULL
709 *
710 * Get CEE DCBX mode operational configuration from firmware (0x0A07)
711 */
712static int
713ice_aq_get_cee_dcb_cfg(struct ice_hw *hw,
714 struct ice_aqc_get_cee_dcb_cfg_resp *buff,
715 struct ice_sq_cd *cd)
716{
717 struct ice_aq_desc desc;
718
719 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_cee_dcb_cfg);
720
721 return ice_aq_send_cmd(hw, &desc, (void *)buff, sizeof(*buff), cd);
722}
723
724/**
725 * ice_aq_set_pfc_mode - Set PFC mode
726 * @hw: pointer to the HW struct
727 * @pfc_mode: value of PFC mode to set
728 * @cd: pointer to command details structure or NULL
729 *
730 * This AQ call configures the PFC mode to DSCP-based PFC mode or
731 * VLAN-based PFC (0x0303)
732 */
733int ice_aq_set_pfc_mode(struct ice_hw *hw, u8 pfc_mode, struct ice_sq_cd *cd)
734{
735 struct ice_aqc_set_query_pfc_mode *cmd;
736 struct ice_aq_desc desc;
737 int status;
738
739 if (pfc_mode > ICE_AQC_PFC_DSCP_BASED_PFC)
740 return -EINVAL;
741
742 cmd = &desc.params.set_query_pfc_mode;
743
744 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_pfc_mode);
745
746 cmd->pfc_mode = pfc_mode;
747
748 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
749 if (status)
750 return status;
751
752 /* FW will write the PFC mode set back into cmd->pfc_mode, but if DCB is
753 * disabled, FW will write back 0 to cmd->pfc_mode. After the AQ has
754 * been executed, check if cmd->pfc_mode is what was requested. If not,
755 * return an error.
756 */
757 if (cmd->pfc_mode != pfc_mode)
758 return -EOPNOTSUPP;
759
760 return 0;
761}
762
763/**
764 * ice_cee_to_dcb_cfg
765 * @cee_cfg: pointer to CEE configuration struct
766 * @pi: port information structure
767 *
768 * Convert CEE configuration from firmware to DCB configuration
769 */
770static void
771ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg,
772 struct ice_port_info *pi)
773{
774 u32 status, tlv_status = le32_to_cpu(cee_cfg->tlv_status);
775 u32 ice_aqc_cee_status_mask, ice_aqc_cee_status_shift, j;
776 u8 i, err, sync, oper, app_index, ice_app_sel_type;
777 u16 app_prio = le16_to_cpu(cee_cfg->oper_app_prio);
778 u16 ice_aqc_cee_app_mask, ice_aqc_cee_app_shift;
779 struct ice_dcbx_cfg *cmp_dcbcfg, *dcbcfg;
780 u16 ice_app_prot_id_type;
781
782 dcbcfg = &pi->qos_cfg.local_dcbx_cfg;
783 dcbcfg->dcbx_mode = ICE_DCBX_MODE_CEE;
784 dcbcfg->tlv_status = tlv_status;
785
786 /* CEE PG data */
787 dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
788
789 /* Note that the FW creates the oper_prio_tc nibbles reversed
790 * from those in the CEE Priority Group sub-TLV.
791 */
792 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
793 dcbcfg->etscfg.prio_table[i * 2] =
794 FIELD_GET(ICE_CEE_PGID_PRIO_0_M,
795 cee_cfg->oper_prio_tc[i]);
796 dcbcfg->etscfg.prio_table[i * 2 + 1] =
797 FIELD_GET(ICE_CEE_PGID_PRIO_1_M,
798 cee_cfg->oper_prio_tc[i]);
799 }
800
801 ice_for_each_traffic_class(i) {
802 dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
803
804 if (dcbcfg->etscfg.prio_table[i] == ICE_CEE_PGID_STRICT) {
805 /* Map it to next empty TC */
806 dcbcfg->etscfg.prio_table[i] = cee_cfg->oper_num_tc - 1;
807 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
808 } else {
809 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
810 }
811 }
812
813 /* CEE PFC data */
814 dcbcfg->pfc.pfcena = cee_cfg->oper_pfc_en;
815 dcbcfg->pfc.pfccap = ICE_MAX_TRAFFIC_CLASS;
816
817 /* CEE APP TLV data */
818 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
819 cmp_dcbcfg = &pi->qos_cfg.desired_dcbx_cfg;
820 else
821 cmp_dcbcfg = &pi->qos_cfg.remote_dcbx_cfg;
822
823 app_index = 0;
824 for (i = 0; i < 3; i++) {
825 if (i == 0) {
826 /* FCoE APP */
827 ice_aqc_cee_status_mask = ICE_AQC_CEE_FCOE_STATUS_M;
828 ice_aqc_cee_status_shift = ICE_AQC_CEE_FCOE_STATUS_S;
829 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FCOE_M;
830 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FCOE_S;
831 ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
832 ice_app_prot_id_type = ETH_P_FCOE;
833 } else if (i == 1) {
834 /* iSCSI APP */
835 ice_aqc_cee_status_mask = ICE_AQC_CEE_ISCSI_STATUS_M;
836 ice_aqc_cee_status_shift = ICE_AQC_CEE_ISCSI_STATUS_S;
837 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_ISCSI_M;
838 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_ISCSI_S;
839 ice_app_sel_type = ICE_APP_SEL_TCPIP;
840 ice_app_prot_id_type = ISCSI_LISTEN_PORT;
841
842 for (j = 0; j < cmp_dcbcfg->numapps; j++) {
843 u16 prot_id = cmp_dcbcfg->app[j].prot_id;
844 u8 sel = cmp_dcbcfg->app[j].selector;
845
846 if (sel == ICE_APP_SEL_TCPIP &&
847 (prot_id == ISCSI_LISTEN_PORT ||
848 prot_id == ICE_APP_PROT_ID_ISCSI_860)) {
849 ice_app_prot_id_type = prot_id;
850 break;
851 }
852 }
853 } else {
854 /* FIP APP */
855 ice_aqc_cee_status_mask = ICE_AQC_CEE_FIP_STATUS_M;
856 ice_aqc_cee_status_shift = ICE_AQC_CEE_FIP_STATUS_S;
857 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FIP_M;
858 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FIP_S;
859 ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
860 ice_app_prot_id_type = ETH_P_FIP;
861 }
862
863 status = (tlv_status & ice_aqc_cee_status_mask) >>
864 ice_aqc_cee_status_shift;
865 err = (status & ICE_TLV_STATUS_ERR) ? 1 : 0;
866 sync = (status & ICE_TLV_STATUS_SYNC) ? 1 : 0;
867 oper = (status & ICE_TLV_STATUS_OPER) ? 1 : 0;
868 /* Add FCoE/iSCSI/FIP APP if Error is False and
869 * Oper/Sync is True
870 */
871 if (!err && sync && oper) {
872 dcbcfg->app[app_index].priority =
873 (app_prio & ice_aqc_cee_app_mask) >>
874 ice_aqc_cee_app_shift;
875 dcbcfg->app[app_index].selector = ice_app_sel_type;
876 dcbcfg->app[app_index].prot_id = ice_app_prot_id_type;
877 app_index++;
878 }
879 }
880
881 dcbcfg->numapps = app_index;
882}
883
884/**
885 * ice_get_ieee_or_cee_dcb_cfg
886 * @pi: port information structure
887 * @dcbx_mode: mode of DCBX (IEEE or CEE)
888 *
889 * Get IEEE or CEE mode DCB configuration from the Firmware
890 */
891static int ice_get_ieee_or_cee_dcb_cfg(struct ice_port_info *pi, u8 dcbx_mode)
892{
893 struct ice_dcbx_cfg *dcbx_cfg = NULL;
894 int ret;
895
896 if (!pi)
897 return -EINVAL;
898
899 if (dcbx_mode == ICE_DCBX_MODE_IEEE)
900 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
901 else if (dcbx_mode == ICE_DCBX_MODE_CEE)
902 dcbx_cfg = &pi->qos_cfg.desired_dcbx_cfg;
903
904 /* Get Local DCB Config in case of ICE_DCBX_MODE_IEEE
905 * or get CEE DCB Desired Config in case of ICE_DCBX_MODE_CEE
906 */
907 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_LOCAL,
908 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
909 if (ret)
910 goto out;
911
912 /* Get Remote DCB Config */
913 dcbx_cfg = &pi->qos_cfg.remote_dcbx_cfg;
914 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_REMOTE,
915 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
916 /* Don't treat ENOENT as an error for Remote MIBs */
917 if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT)
918 ret = 0;
919
920out:
921 return ret;
922}
923
924/**
925 * ice_get_dcb_cfg
926 * @pi: port information structure
927 *
928 * Get DCB configuration from the Firmware
929 */
930int ice_get_dcb_cfg(struct ice_port_info *pi)
931{
932 struct ice_aqc_get_cee_dcb_cfg_resp cee_cfg;
933 struct ice_dcbx_cfg *dcbx_cfg;
934 int ret;
935
936 if (!pi)
937 return -EINVAL;
938
939 ret = ice_aq_get_cee_dcb_cfg(pi->hw, &cee_cfg, NULL);
940 if (!ret) {
941 /* CEE mode */
942 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_CEE);
943 ice_cee_to_dcb_cfg(&cee_cfg, pi);
944 } else if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) {
945 /* CEE mode not enabled try querying IEEE data */
946 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
947 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE;
948 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_IEEE);
949 }
950
951 return ret;
952}
953
954/**
955 * ice_get_dcb_cfg_from_mib_change
956 * @pi: port information structure
957 * @event: pointer to the admin queue receive event
958 *
959 * Set DCB configuration from received MIB Change event
960 */
961void ice_get_dcb_cfg_from_mib_change(struct ice_port_info *pi,
962 struct ice_rq_event_info *event)
963{
964 struct ice_dcbx_cfg *dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
965 struct ice_aqc_lldp_get_mib *mib;
966 u8 change_type, dcbx_mode;
967
968 mib = (struct ice_aqc_lldp_get_mib *)&event->desc.params.raw;
969
970 change_type = FIELD_GET(ICE_AQ_LLDP_MIB_TYPE_M, mib->type);
971 if (change_type == ICE_AQ_LLDP_MIB_REMOTE)
972 dcbx_cfg = &pi->qos_cfg.remote_dcbx_cfg;
973
974 dcbx_mode = FIELD_GET(ICE_AQ_LLDP_DCBX_M, mib->type);
975
976 switch (dcbx_mode) {
977 case ICE_AQ_LLDP_DCBX_IEEE:
978 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE;
979 ice_lldp_to_dcb_cfg(event->msg_buf, dcbx_cfg);
980 break;
981
982 case ICE_AQ_LLDP_DCBX_CEE:
983 pi->qos_cfg.desired_dcbx_cfg = pi->qos_cfg.local_dcbx_cfg;
984 ice_cee_to_dcb_cfg((struct ice_aqc_get_cee_dcb_cfg_resp *)
985 event->msg_buf, pi);
986 break;
987 }
988}
989
990/**
991 * ice_init_dcb
992 * @hw: pointer to the HW struct
993 * @enable_mib_change: enable MIB change event
994 *
995 * Update DCB configuration from the Firmware
996 */
997int ice_init_dcb(struct ice_hw *hw, bool enable_mib_change)
998{
999 struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg;
1000 int ret = 0;
1001
1002 if (!hw->func_caps.common_cap.dcb)
1003 return -EOPNOTSUPP;
1004
1005 qos_cfg->is_sw_lldp = true;
1006
1007 /* Get DCBX status */
1008 qos_cfg->dcbx_status = ice_get_dcbx_status(hw);
1009
1010 if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DONE ||
1011 qos_cfg->dcbx_status == ICE_DCBX_STATUS_IN_PROGRESS ||
1012 qos_cfg->dcbx_status == ICE_DCBX_STATUS_NOT_STARTED) {
1013 /* Get current DCBX configuration */
1014 ret = ice_get_dcb_cfg(hw->port_info);
1015 if (ret)
1016 return ret;
1017 qos_cfg->is_sw_lldp = false;
1018 } else if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS) {
1019 return -EBUSY;
1020 }
1021
1022 /* Configure the LLDP MIB change event */
1023 if (enable_mib_change) {
1024 ret = ice_aq_cfg_lldp_mib_change(hw, true, NULL);
1025 if (ret)
1026 qos_cfg->is_sw_lldp = true;
1027 }
1028
1029 return ret;
1030}
1031
1032/**
1033 * ice_cfg_lldp_mib_change
1034 * @hw: pointer to the HW struct
1035 * @ena_mib: enable/disable MIB change event
1036 *
1037 * Configure (disable/enable) MIB
1038 */
1039int ice_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_mib)
1040{
1041 struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg;
1042 int ret;
1043
1044 if (!hw->func_caps.common_cap.dcb)
1045 return -EOPNOTSUPP;
1046
1047 /* Get DCBX status */
1048 qos_cfg->dcbx_status = ice_get_dcbx_status(hw);
1049
1050 if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS)
1051 return -EBUSY;
1052
1053 ret = ice_aq_cfg_lldp_mib_change(hw, ena_mib, NULL);
1054 if (!ret)
1055 qos_cfg->is_sw_lldp = !ena_mib;
1056
1057 return ret;
1058}
1059
1060/**
1061 * ice_add_ieee_ets_common_tlv
1062 * @buf: Data buffer to be populated with ice_dcb_ets_cfg data
1063 * @ets_cfg: Container for ice_dcb_ets_cfg data
1064 *
1065 * Populate the TLV buffer with ice_dcb_ets_cfg data
1066 */
1067static void
1068ice_add_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
1069{
1070 u8 priority0, priority1;
1071 u8 offset = 0;
1072 int i;
1073
1074 /* Priority Assignment Table (4 octets)
1075 * Octets:| 1 | 2 | 3 | 4 |
1076 * -----------------------------------------
1077 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
1078 * -----------------------------------------
1079 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
1080 * -----------------------------------------
1081 */
1082 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
1083 priority0 = ets_cfg->prio_table[i * 2] & 0xF;
1084 priority1 = ets_cfg->prio_table[i * 2 + 1] & 0xF;
1085 buf[offset] = (priority0 << ICE_IEEE_ETS_PRIO_1_S) | priority1;
1086 offset++;
1087 }
1088
1089 /* TC Bandwidth Table (8 octets)
1090 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1091 * ---------------------------------
1092 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1093 * ---------------------------------
1094 *
1095 * TSA Assignment Table (8 octets)
1096 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1097 * ---------------------------------
1098 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1099 * ---------------------------------
1100 */
1101 ice_for_each_traffic_class(i) {
1102 buf[offset] = ets_cfg->tcbwtable[i];
1103 buf[ICE_MAX_TRAFFIC_CLASS + offset] = ets_cfg->tsatable[i];
1104 offset++;
1105 }
1106}
1107
1108/**
1109 * ice_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format
1110 * @tlv: Fill the ETS config data in IEEE format
1111 * @dcbcfg: Local store which holds the DCB Config
1112 *
1113 * Prepare IEEE 802.1Qaz ETS CFG TLV
1114 */
1115static void
1116ice_add_ieee_ets_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1117{
1118 struct ice_dcb_ets_cfg *etscfg;
1119 u8 *buf = tlv->tlvinfo;
1120 u8 maxtcwilling = 0;
1121 u32 ouisubtype;
1122 u16 typelen;
1123
1124 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1125 ICE_IEEE_ETS_TLV_LEN);
1126 tlv->typelen = htons(typelen);
1127
1128 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1129 ICE_IEEE_SUBTYPE_ETS_CFG);
1130 tlv->ouisubtype = htonl(ouisubtype);
1131
1132 /* First Octet post subtype
1133 * --------------------------
1134 * |will-|CBS | Re- | Max |
1135 * |ing | |served| TCs |
1136 * --------------------------
1137 * |1bit | 1bit|3 bits|3bits|
1138 */
1139 etscfg = &dcbcfg->etscfg;
1140 if (etscfg->willing)
1141 maxtcwilling = BIT(ICE_IEEE_ETS_WILLING_S);
1142 maxtcwilling |= etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M;
1143 buf[0] = maxtcwilling;
1144
1145 /* Begin adding at Priority Assignment Table (offset 1 in buf) */
1146 ice_add_ieee_ets_common_tlv(&buf[1], etscfg);
1147}
1148
1149/**
1150 * ice_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format
1151 * @tlv: Fill ETS Recommended TLV in IEEE format
1152 * @dcbcfg: Local store which holds the DCB Config
1153 *
1154 * Prepare IEEE 802.1Qaz ETS REC TLV
1155 */
1156static void
1157ice_add_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
1158 struct ice_dcbx_cfg *dcbcfg)
1159{
1160 struct ice_dcb_ets_cfg *etsrec;
1161 u8 *buf = tlv->tlvinfo;
1162 u32 ouisubtype;
1163 u16 typelen;
1164
1165 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1166 ICE_IEEE_ETS_TLV_LEN);
1167 tlv->typelen = htons(typelen);
1168
1169 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1170 ICE_IEEE_SUBTYPE_ETS_REC);
1171 tlv->ouisubtype = htonl(ouisubtype);
1172
1173 etsrec = &dcbcfg->etsrec;
1174
1175 /* First Octet is reserved */
1176 /* Begin adding at Priority Assignment Table (offset 1 in buf) */
1177 ice_add_ieee_ets_common_tlv(&buf[1], etsrec);
1178}
1179
1180/**
1181 * ice_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format
1182 * @tlv: Fill PFC TLV in IEEE format
1183 * @dcbcfg: Local store which holds the PFC CFG data
1184 *
1185 * Prepare IEEE 802.1Qaz PFC CFG TLV
1186 */
1187static void
1188ice_add_ieee_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1189{
1190 u8 *buf = tlv->tlvinfo;
1191 u32 ouisubtype;
1192 u16 typelen;
1193
1194 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1195 ICE_IEEE_PFC_TLV_LEN);
1196 tlv->typelen = htons(typelen);
1197
1198 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1199 ICE_IEEE_SUBTYPE_PFC_CFG);
1200 tlv->ouisubtype = htonl(ouisubtype);
1201
1202 /* ----------------------------------------
1203 * |will-|MBC | Re- | PFC | PFC Enable |
1204 * |ing | |served| cap | |
1205 * -----------------------------------------
1206 * |1bit | 1bit|2 bits|4bits| 1 octet |
1207 */
1208 if (dcbcfg->pfc.willing)
1209 buf[0] = BIT(ICE_IEEE_PFC_WILLING_S);
1210
1211 if (dcbcfg->pfc.mbc)
1212 buf[0] |= BIT(ICE_IEEE_PFC_MBC_S);
1213
1214 buf[0] |= dcbcfg->pfc.pfccap & 0xF;
1215 buf[1] = dcbcfg->pfc.pfcena;
1216}
1217
1218/**
1219 * ice_add_ieee_app_pri_tlv - Prepare APP TLV in IEEE format
1220 * @tlv: Fill APP TLV in IEEE format
1221 * @dcbcfg: Local store which holds the APP CFG data
1222 *
1223 * Prepare IEEE 802.1Qaz APP CFG TLV
1224 */
1225static void
1226ice_add_ieee_app_pri_tlv(struct ice_lldp_org_tlv *tlv,
1227 struct ice_dcbx_cfg *dcbcfg)
1228{
1229 u16 typelen, len, offset = 0;
1230 u8 priority, selector, i = 0;
1231 u8 *buf = tlv->tlvinfo;
1232 u32 ouisubtype;
1233
1234 /* No APP TLVs then just return */
1235 if (dcbcfg->numapps == 0)
1236 return;
1237 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1238 ICE_IEEE_SUBTYPE_APP_PRI);
1239 tlv->ouisubtype = htonl(ouisubtype);
1240
1241 /* Move offset to App Priority Table */
1242 offset++;
1243 /* Application Priority Table (3 octets)
1244 * Octets:| 1 | 2 | 3 |
1245 * -----------------------------------------
1246 * |Priority|Rsrvd| Sel | Protocol ID |
1247 * -----------------------------------------
1248 * Bits:|23 21|20 19|18 16|15 0|
1249 * -----------------------------------------
1250 */
1251 while (i < dcbcfg->numapps) {
1252 priority = dcbcfg->app[i].priority & 0x7;
1253 selector = dcbcfg->app[i].selector & 0x7;
1254 buf[offset] = (priority << ICE_IEEE_APP_PRIO_S) | selector;
1255 buf[offset + 1] = (dcbcfg->app[i].prot_id >> 0x8) & 0xFF;
1256 buf[offset + 2] = dcbcfg->app[i].prot_id & 0xFF;
1257 /* Move to next app */
1258 offset += 3;
1259 i++;
1260 if (i >= ICE_DCBX_MAX_APPS)
1261 break;
1262 }
1263 /* len includes size of ouisubtype + 1 reserved + 3*numapps */
1264 len = sizeof(tlv->ouisubtype) + 1 + (i * 3);
1265 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | (len & 0x1FF));
1266 tlv->typelen = htons(typelen);
1267}
1268
1269/**
1270 * ice_add_dscp_up_tlv - Prepare DSCP to UP TLV
1271 * @tlv: location to build the TLV data
1272 * @dcbcfg: location of data to convert to TLV
1273 */
1274static void
1275ice_add_dscp_up_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1276{
1277 u8 *buf = tlv->tlvinfo;
1278 u32 ouisubtype;
1279 u16 typelen;
1280 int i;
1281
1282 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1283 ICE_DSCP_UP_TLV_LEN);
1284 tlv->typelen = htons(typelen);
1285
1286 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) |
1287 ICE_DSCP_SUBTYPE_DSCP2UP);
1288 tlv->ouisubtype = htonl(ouisubtype);
1289
1290 /* bytes 0 - 63 - IPv4 DSCP2UP LUT */
1291 for (i = 0; i < ICE_DSCP_NUM_VAL; i++) {
1292 /* IPv4 mapping */
1293 buf[i] = dcbcfg->dscp_map[i];
1294 /* IPv6 mapping */
1295 buf[i + ICE_DSCP_IPV6_OFFSET] = dcbcfg->dscp_map[i];
1296 }
1297
1298 /* byte 64 - IPv4 untagged traffic */
1299 buf[i] = 0;
1300
1301 /* byte 144 - IPv6 untagged traffic */
1302 buf[i + ICE_DSCP_IPV6_OFFSET] = 0;
1303}
1304
1305#define ICE_BYTES_PER_TC 8
1306/**
1307 * ice_add_dscp_enf_tlv - Prepare DSCP Enforcement TLV
1308 * @tlv: location to build the TLV data
1309 */
1310static void
1311ice_add_dscp_enf_tlv(struct ice_lldp_org_tlv *tlv)
1312{
1313 u8 *buf = tlv->tlvinfo;
1314 u32 ouisubtype;
1315 u16 typelen;
1316
1317 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1318 ICE_DSCP_ENF_TLV_LEN);
1319 tlv->typelen = htons(typelen);
1320
1321 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) |
1322 ICE_DSCP_SUBTYPE_ENFORCE);
1323 tlv->ouisubtype = htonl(ouisubtype);
1324
1325 /* Allow all DSCP values to be valid for all TC's (IPv4 and IPv6) */
1326 memset(buf, 0, 2 * (ICE_MAX_TRAFFIC_CLASS * ICE_BYTES_PER_TC));
1327}
1328
1329/**
1330 * ice_add_dscp_tc_bw_tlv - Prepare DSCP BW for TC TLV
1331 * @tlv: location to build the TLV data
1332 * @dcbcfg: location of the data to convert to TLV
1333 */
1334static void
1335ice_add_dscp_tc_bw_tlv(struct ice_lldp_org_tlv *tlv,
1336 struct ice_dcbx_cfg *dcbcfg)
1337{
1338 struct ice_dcb_ets_cfg *etscfg;
1339 u8 *buf = tlv->tlvinfo;
1340 u32 ouisubtype;
1341 u8 offset = 0;
1342 u16 typelen;
1343 int i;
1344
1345 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1346 ICE_DSCP_TC_BW_TLV_LEN);
1347 tlv->typelen = htons(typelen);
1348
1349 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) |
1350 ICE_DSCP_SUBTYPE_TCBW);
1351 tlv->ouisubtype = htonl(ouisubtype);
1352
1353 /* First Octect after subtype
1354 * ----------------------------
1355 * | RSV | CBS | RSV | Max TCs |
1356 * | 1b | 1b | 3b | 3b |
1357 * ----------------------------
1358 */
1359 etscfg = &dcbcfg->etscfg;
1360 buf[0] = etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M;
1361
1362 /* bytes 1 - 4 reserved */
1363 offset = 5;
1364
1365 /* TC BW table
1366 * bytes 0 - 7 for TC 0 - 7
1367 *
1368 * TSA Assignment table
1369 * bytes 8 - 15 for TC 0 - 7
1370 */
1371 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS; i++) {
1372 buf[offset] = etscfg->tcbwtable[i];
1373 buf[offset + ICE_MAX_TRAFFIC_CLASS] = etscfg->tsatable[i];
1374 offset++;
1375 }
1376}
1377
1378/**
1379 * ice_add_dscp_pfc_tlv - Prepare DSCP PFC TLV
1380 * @tlv: Fill PFC TLV in IEEE format
1381 * @dcbcfg: Local store which holds the PFC CFG data
1382 */
1383static void
1384ice_add_dscp_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1385{
1386 u8 *buf = tlv->tlvinfo;
1387 u32 ouisubtype;
1388 u16 typelen;
1389
1390 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1391 ICE_DSCP_PFC_TLV_LEN);
1392 tlv->typelen = htons(typelen);
1393
1394 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) |
1395 ICE_DSCP_SUBTYPE_PFC);
1396 tlv->ouisubtype = htonl(ouisubtype);
1397
1398 buf[0] = dcbcfg->pfc.pfccap & 0xF;
1399 buf[1] = dcbcfg->pfc.pfcena;
1400}
1401
1402/**
1403 * ice_add_dcb_tlv - Add all IEEE or DSCP TLVs
1404 * @tlv: Fill TLV data in IEEE format
1405 * @dcbcfg: Local store which holds the DCB Config
1406 * @tlvid: Type of IEEE TLV
1407 *
1408 * Add tlv information
1409 */
1410static void
1411ice_add_dcb_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg,
1412 u16 tlvid)
1413{
1414 if (dcbcfg->pfc_mode == ICE_QOS_MODE_VLAN) {
1415 switch (tlvid) {
1416 case ICE_IEEE_TLV_ID_ETS_CFG:
1417 ice_add_ieee_ets_tlv(tlv, dcbcfg);
1418 break;
1419 case ICE_IEEE_TLV_ID_ETS_REC:
1420 ice_add_ieee_etsrec_tlv(tlv, dcbcfg);
1421 break;
1422 case ICE_IEEE_TLV_ID_PFC_CFG:
1423 ice_add_ieee_pfc_tlv(tlv, dcbcfg);
1424 break;
1425 case ICE_IEEE_TLV_ID_APP_PRI:
1426 ice_add_ieee_app_pri_tlv(tlv, dcbcfg);
1427 break;
1428 default:
1429 break;
1430 }
1431 } else {
1432 /* pfc_mode == ICE_QOS_MODE_DSCP */
1433 switch (tlvid) {
1434 case ICE_TLV_ID_DSCP_UP:
1435 ice_add_dscp_up_tlv(tlv, dcbcfg);
1436 break;
1437 case ICE_TLV_ID_DSCP_ENF:
1438 ice_add_dscp_enf_tlv(tlv);
1439 break;
1440 case ICE_TLV_ID_DSCP_TC_BW:
1441 ice_add_dscp_tc_bw_tlv(tlv, dcbcfg);
1442 break;
1443 case ICE_TLV_ID_DSCP_TO_PFC:
1444 ice_add_dscp_pfc_tlv(tlv, dcbcfg);
1445 break;
1446 default:
1447 break;
1448 }
1449 }
1450}
1451
1452/**
1453 * ice_dcb_cfg_to_lldp - Convert DCB configuration to MIB format
1454 * @lldpmib: pointer to the HW struct
1455 * @miblen: length of LLDP MIB
1456 * @dcbcfg: Local store which holds the DCB Config
1457 *
1458 * Convert the DCB configuration to MIB format
1459 */
1460static void
1461ice_dcb_cfg_to_lldp(u8 *lldpmib, u16 *miblen, struct ice_dcbx_cfg *dcbcfg)
1462{
1463 u16 len, offset = 0, tlvid = ICE_TLV_ID_START;
1464 struct ice_lldp_org_tlv *tlv;
1465 u16 typelen;
1466
1467 tlv = (struct ice_lldp_org_tlv *)lldpmib;
1468 while (1) {
1469 ice_add_dcb_tlv(tlv, dcbcfg, tlvid++);
1470 typelen = ntohs(tlv->typelen);
1471 len = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);
1472 if (len)
1473 offset += len + 2;
1474 /* END TLV or beyond LLDPDU size */
1475 if (tlvid >= ICE_TLV_ID_END_OF_LLDPPDU ||
1476 offset > ICE_LLDPDU_SIZE)
1477 break;
1478 /* Move to next TLV */
1479 if (len)
1480 tlv = (struct ice_lldp_org_tlv *)
1481 ((char *)tlv + sizeof(tlv->typelen) + len);
1482 }
1483 *miblen = offset;
1484}
1485
1486/**
1487 * ice_set_dcb_cfg - Set the local LLDP MIB to FW
1488 * @pi: port information structure
1489 *
1490 * Set DCB configuration to the Firmware
1491 */
1492int ice_set_dcb_cfg(struct ice_port_info *pi)
1493{
1494 u8 mib_type, *lldpmib = NULL;
1495 struct ice_dcbx_cfg *dcbcfg;
1496 struct ice_hw *hw;
1497 u16 miblen;
1498 int ret;
1499
1500 if (!pi)
1501 return -EINVAL;
1502
1503 hw = pi->hw;
1504
1505 /* update the HW local config */
1506 dcbcfg = &pi->qos_cfg.local_dcbx_cfg;
1507 /* Allocate the LLDPDU */
1508 lldpmib = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL);
1509 if (!lldpmib)
1510 return -ENOMEM;
1511
1512 mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB;
1513 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
1514 mib_type |= SET_LOCAL_MIB_TYPE_CEE_NON_WILLING;
1515
1516 ice_dcb_cfg_to_lldp(lldpmib, &miblen, dcbcfg);
1517 ret = ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, miblen,
1518 NULL);
1519
1520 devm_kfree(ice_hw_to_dev(hw), lldpmib);
1521
1522 return ret;
1523}
1524
1525/**
1526 * ice_aq_query_port_ets - query port ETS configuration
1527 * @pi: port information structure
1528 * @buf: pointer to buffer
1529 * @buf_size: buffer size in bytes
1530 * @cd: pointer to command details structure or NULL
1531 *
1532 * query current port ETS configuration
1533 */
1534static int
1535ice_aq_query_port_ets(struct ice_port_info *pi,
1536 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1537 struct ice_sq_cd *cd)
1538{
1539 struct ice_aqc_query_port_ets *cmd;
1540 struct ice_aq_desc desc;
1541 int status;
1542
1543 if (!pi)
1544 return -EINVAL;
1545 cmd = &desc.params.port_ets;
1546 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_query_port_ets);
1547 cmd->port_teid = pi->root->info.node_teid;
1548
1549 status = ice_aq_send_cmd(pi->hw, &desc, buf, buf_size, cd);
1550 return status;
1551}
1552
1553/**
1554 * ice_update_port_tc_tree_cfg - update TC tree configuration
1555 * @pi: port information structure
1556 * @buf: pointer to buffer
1557 *
1558 * update the SW DB with the new TC changes
1559 */
1560static int
1561ice_update_port_tc_tree_cfg(struct ice_port_info *pi,
1562 struct ice_aqc_port_ets_elem *buf)
1563{
1564 struct ice_sched_node *node, *tc_node;
1565 struct ice_aqc_txsched_elem_data elem;
1566 u32 teid1, teid2;
1567 int status = 0;
1568 u8 i, j;
1569
1570 if (!pi)
1571 return -EINVAL;
1572 /* suspend the missing TC nodes */
1573 for (i = 0; i < pi->root->num_children; i++) {
1574 teid1 = le32_to_cpu(pi->root->children[i]->info.node_teid);
1575 ice_for_each_traffic_class(j) {
1576 teid2 = le32_to_cpu(buf->tc_node_teid[j]);
1577 if (teid1 == teid2)
1578 break;
1579 }
1580 if (j < ICE_MAX_TRAFFIC_CLASS)
1581 continue;
1582 /* TC is missing */
1583 pi->root->children[i]->in_use = false;
1584 }
1585 /* add the new TC nodes */
1586 ice_for_each_traffic_class(j) {
1587 teid2 = le32_to_cpu(buf->tc_node_teid[j]);
1588 if (teid2 == ICE_INVAL_TEID)
1589 continue;
1590 /* Is it already present in the tree ? */
1591 for (i = 0; i < pi->root->num_children; i++) {
1592 tc_node = pi->root->children[i];
1593 if (!tc_node)
1594 continue;
1595 teid1 = le32_to_cpu(tc_node->info.node_teid);
1596 if (teid1 == teid2) {
1597 tc_node->tc_num = j;
1598 tc_node->in_use = true;
1599 break;
1600 }
1601 }
1602 if (i < pi->root->num_children)
1603 continue;
1604 /* new TC */
1605 status = ice_sched_query_elem(pi->hw, teid2, &elem);
1606 if (!status)
1607 status = ice_sched_add_node(pi, 1, &elem, NULL);
1608 if (status)
1609 break;
1610 /* update the TC number */
1611 node = ice_sched_find_node_by_teid(pi->root, teid2);
1612 if (node)
1613 node->tc_num = j;
1614 }
1615 return status;
1616}
1617
1618/**
1619 * ice_query_port_ets - query port ETS configuration
1620 * @pi: port information structure
1621 * @buf: pointer to buffer
1622 * @buf_size: buffer size in bytes
1623 * @cd: pointer to command details structure or NULL
1624 *
1625 * query current port ETS configuration and update the
1626 * SW DB with the TC changes
1627 */
1628int
1629ice_query_port_ets(struct ice_port_info *pi,
1630 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1631 struct ice_sq_cd *cd)
1632{
1633 int status;
1634
1635 mutex_lock(&pi->sched_lock);
1636 status = ice_aq_query_port_ets(pi, buf, buf_size, cd);
1637 if (!status)
1638 status = ice_update_port_tc_tree_cfg(pi, buf);
1639 mutex_unlock(&pi->sched_lock);
1640 return status;
1641}
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright (c) 2019, Intel Corporation. */
3
4#include "ice_common.h"
5#include "ice_sched.h"
6#include "ice_dcb.h"
7
8/**
9 * ice_aq_get_lldp_mib
10 * @hw: pointer to the HW struct
11 * @bridge_type: type of bridge requested
12 * @mib_type: Local, Remote or both Local and Remote MIBs
13 * @buf: pointer to the caller-supplied buffer to store the MIB block
14 * @buf_size: size of the buffer (in bytes)
15 * @local_len: length of the returned Local LLDP MIB
16 * @remote_len: length of the returned Remote LLDP MIB
17 * @cd: pointer to command details structure or NULL
18 *
19 * Requests the complete LLDP MIB (entire packet). (0x0A00)
20 */
21static enum ice_status
22ice_aq_get_lldp_mib(struct ice_hw *hw, u8 bridge_type, u8 mib_type, void *buf,
23 u16 buf_size, u16 *local_len, u16 *remote_len,
24 struct ice_sq_cd *cd)
25{
26 struct ice_aqc_lldp_get_mib *cmd;
27 struct ice_aq_desc desc;
28 enum ice_status status;
29
30 cmd = &desc.params.lldp_get_mib;
31
32 if (buf_size == 0 || !buf)
33 return ICE_ERR_PARAM;
34
35 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_get_mib);
36
37 cmd->type = mib_type & ICE_AQ_LLDP_MIB_TYPE_M;
38 cmd->type |= (bridge_type << ICE_AQ_LLDP_BRID_TYPE_S) &
39 ICE_AQ_LLDP_BRID_TYPE_M;
40
41 desc.datalen = cpu_to_le16(buf_size);
42
43 status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
44 if (!status) {
45 if (local_len)
46 *local_len = le16_to_cpu(cmd->local_len);
47 if (remote_len)
48 *remote_len = le16_to_cpu(cmd->remote_len);
49 }
50
51 return status;
52}
53
54/**
55 * ice_aq_cfg_lldp_mib_change
56 * @hw: pointer to the HW struct
57 * @ena_update: Enable or Disable event posting
58 * @cd: pointer to command details structure or NULL
59 *
60 * Enable or Disable posting of an event on ARQ when LLDP MIB
61 * associated with the interface changes (0x0A01)
62 */
63static enum ice_status
64ice_aq_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_update,
65 struct ice_sq_cd *cd)
66{
67 struct ice_aqc_lldp_set_mib_change *cmd;
68 struct ice_aq_desc desc;
69
70 cmd = &desc.params.lldp_set_event;
71
72 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_set_mib_change);
73
74 if (!ena_update)
75 cmd->command |= ICE_AQ_LLDP_MIB_UPDATE_DIS;
76
77 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
78}
79
80/**
81 * ice_aq_stop_lldp
82 * @hw: pointer to the HW struct
83 * @shutdown_lldp_agent: True if LLDP Agent needs to be Shutdown
84 * False if LLDP Agent needs to be Stopped
85 * @persist: True if Stop/Shutdown of LLDP Agent needs to be persistent across
86 * reboots
87 * @cd: pointer to command details structure or NULL
88 *
89 * Stop or Shutdown the embedded LLDP Agent (0x0A05)
90 */
91enum ice_status
92ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent, bool persist,
93 struct ice_sq_cd *cd)
94{
95 struct ice_aqc_lldp_stop *cmd;
96 struct ice_aq_desc desc;
97
98 cmd = &desc.params.lldp_stop;
99
100 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_stop);
101
102 if (shutdown_lldp_agent)
103 cmd->command |= ICE_AQ_LLDP_AGENT_SHUTDOWN;
104
105 if (persist)
106 cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_DIS;
107
108 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
109}
110
111/**
112 * ice_aq_start_lldp
113 * @hw: pointer to the HW struct
114 * @persist: True if Start of LLDP Agent needs to be persistent across reboots
115 * @cd: pointer to command details structure or NULL
116 *
117 * Start the embedded LLDP Agent on all ports. (0x0A06)
118 */
119enum ice_status
120ice_aq_start_lldp(struct ice_hw *hw, bool persist, struct ice_sq_cd *cd)
121{
122 struct ice_aqc_lldp_start *cmd;
123 struct ice_aq_desc desc;
124
125 cmd = &desc.params.lldp_start;
126
127 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_start);
128
129 cmd->command = ICE_AQ_LLDP_AGENT_START;
130
131 if (persist)
132 cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_ENA;
133
134 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
135}
136
137/**
138 * ice_get_dcbx_status
139 * @hw: pointer to the HW struct
140 *
141 * Get the DCBX status from the Firmware
142 */
143static u8 ice_get_dcbx_status(struct ice_hw *hw)
144{
145 u32 reg;
146
147 reg = rd32(hw, PRTDCB_GENS);
148 return (u8)((reg & PRTDCB_GENS_DCBX_STATUS_M) >>
149 PRTDCB_GENS_DCBX_STATUS_S);
150}
151
152/**
153 * ice_parse_ieee_ets_common_tlv
154 * @buf: Data buffer to be parsed for ETS CFG/REC data
155 * @ets_cfg: Container to store parsed data
156 *
157 * Parses the common data of IEEE 802.1Qaz ETS CFG/REC TLV
158 */
159static void
160ice_parse_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
161{
162 u8 offset = 0;
163 int i;
164
165 /* Priority Assignment Table (4 octets)
166 * Octets:| 1 | 2 | 3 | 4 |
167 * -----------------------------------------
168 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
169 * -----------------------------------------
170 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
171 * -----------------------------------------
172 */
173 for (i = 0; i < 4; i++) {
174 ets_cfg->prio_table[i * 2] =
175 ((buf[offset] & ICE_IEEE_ETS_PRIO_1_M) >>
176 ICE_IEEE_ETS_PRIO_1_S);
177 ets_cfg->prio_table[i * 2 + 1] =
178 ((buf[offset] & ICE_IEEE_ETS_PRIO_0_M) >>
179 ICE_IEEE_ETS_PRIO_0_S);
180 offset++;
181 }
182
183 /* TC Bandwidth Table (8 octets)
184 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
185 * ---------------------------------
186 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
187 * ---------------------------------
188 *
189 * TSA Assignment Table (8 octets)
190 * Octets:| 9 | 10| 11| 12| 13| 14| 15| 16|
191 * ---------------------------------
192 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
193 * ---------------------------------
194 */
195 ice_for_each_traffic_class(i) {
196 ets_cfg->tcbwtable[i] = buf[offset];
197 ets_cfg->tsatable[i] = buf[ICE_MAX_TRAFFIC_CLASS + offset++];
198 }
199}
200
201/**
202 * ice_parse_ieee_etscfg_tlv
203 * @tlv: IEEE 802.1Qaz ETS CFG TLV
204 * @dcbcfg: Local store to update ETS CFG data
205 *
206 * Parses IEEE 802.1Qaz ETS CFG TLV
207 */
208static void
209ice_parse_ieee_etscfg_tlv(struct ice_lldp_org_tlv *tlv,
210 struct ice_dcbx_cfg *dcbcfg)
211{
212 struct ice_dcb_ets_cfg *etscfg;
213 u8 *buf = tlv->tlvinfo;
214
215 /* First Octet post subtype
216 * --------------------------
217 * |will-|CBS | Re- | Max |
218 * |ing | |served| TCs |
219 * --------------------------
220 * |1bit | 1bit|3 bits|3bits|
221 */
222 etscfg = &dcbcfg->etscfg;
223 etscfg->willing = ((buf[0] & ICE_IEEE_ETS_WILLING_M) >>
224 ICE_IEEE_ETS_WILLING_S);
225 etscfg->cbs = ((buf[0] & ICE_IEEE_ETS_CBS_M) >> ICE_IEEE_ETS_CBS_S);
226 etscfg->maxtcs = ((buf[0] & ICE_IEEE_ETS_MAXTC_M) >>
227 ICE_IEEE_ETS_MAXTC_S);
228
229 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */
230 ice_parse_ieee_ets_common_tlv(&buf[1], etscfg);
231}
232
233/**
234 * ice_parse_ieee_etsrec_tlv
235 * @tlv: IEEE 802.1Qaz ETS REC TLV
236 * @dcbcfg: Local store to update ETS REC data
237 *
238 * Parses IEEE 802.1Qaz ETS REC TLV
239 */
240static void
241ice_parse_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
242 struct ice_dcbx_cfg *dcbcfg)
243{
244 u8 *buf = tlv->tlvinfo;
245
246 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */
247 ice_parse_ieee_ets_common_tlv(&buf[1], &dcbcfg->etsrec);
248}
249
250/**
251 * ice_parse_ieee_pfccfg_tlv
252 * @tlv: IEEE 802.1Qaz PFC CFG TLV
253 * @dcbcfg: Local store to update PFC CFG data
254 *
255 * Parses IEEE 802.1Qaz PFC CFG TLV
256 */
257static void
258ice_parse_ieee_pfccfg_tlv(struct ice_lldp_org_tlv *tlv,
259 struct ice_dcbx_cfg *dcbcfg)
260{
261 u8 *buf = tlv->tlvinfo;
262
263 /* ----------------------------------------
264 * |will-|MBC | Re- | PFC | PFC Enable |
265 * |ing | |served| cap | |
266 * -----------------------------------------
267 * |1bit | 1bit|2 bits|4bits| 1 octet |
268 */
269 dcbcfg->pfc.willing = ((buf[0] & ICE_IEEE_PFC_WILLING_M) >>
270 ICE_IEEE_PFC_WILLING_S);
271 dcbcfg->pfc.mbc = ((buf[0] & ICE_IEEE_PFC_MBC_M) >> ICE_IEEE_PFC_MBC_S);
272 dcbcfg->pfc.pfccap = ((buf[0] & ICE_IEEE_PFC_CAP_M) >>
273 ICE_IEEE_PFC_CAP_S);
274 dcbcfg->pfc.pfcena = buf[1];
275}
276
277/**
278 * ice_parse_ieee_app_tlv
279 * @tlv: IEEE 802.1Qaz APP TLV
280 * @dcbcfg: Local store to update APP PRIO data
281 *
282 * Parses IEEE 802.1Qaz APP PRIO TLV
283 */
284static void
285ice_parse_ieee_app_tlv(struct ice_lldp_org_tlv *tlv,
286 struct ice_dcbx_cfg *dcbcfg)
287{
288 u16 offset = 0;
289 u16 typelen;
290 int i = 0;
291 u16 len;
292 u8 *buf;
293
294 typelen = ntohs(tlv->typelen);
295 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
296 buf = tlv->tlvinfo;
297
298 /* Removing sizeof(ouisubtype) and reserved byte from len.
299 * Remaining len div 3 is number of APP TLVs.
300 */
301 len -= (sizeof(tlv->ouisubtype) + 1);
302
303 /* Move offset to App Priority Table */
304 offset++;
305
306 /* Application Priority Table (3 octets)
307 * Octets:| 1 | 2 | 3 |
308 * -----------------------------------------
309 * |Priority|Rsrvd| Sel | Protocol ID |
310 * -----------------------------------------
311 * Bits:|23 21|20 19|18 16|15 0|
312 * -----------------------------------------
313 */
314 while (offset < len) {
315 dcbcfg->app[i].priority = ((buf[offset] &
316 ICE_IEEE_APP_PRIO_M) >>
317 ICE_IEEE_APP_PRIO_S);
318 dcbcfg->app[i].selector = ((buf[offset] &
319 ICE_IEEE_APP_SEL_M) >>
320 ICE_IEEE_APP_SEL_S);
321 dcbcfg->app[i].prot_id = (buf[offset + 1] << 0x8) |
322 buf[offset + 2];
323 /* Move to next app */
324 offset += 3;
325 i++;
326 if (i >= ICE_DCBX_MAX_APPS)
327 break;
328 }
329
330 dcbcfg->numapps = i;
331}
332
333/**
334 * ice_parse_ieee_tlv
335 * @tlv: IEEE 802.1Qaz TLV
336 * @dcbcfg: Local store to update ETS REC data
337 *
338 * Get the TLV subtype and send it to parsing function
339 * based on the subtype value
340 */
341static void
342ice_parse_ieee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
343{
344 u32 ouisubtype;
345 u8 subtype;
346
347 ouisubtype = ntohl(tlv->ouisubtype);
348 subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >>
349 ICE_LLDP_TLV_SUBTYPE_S);
350 switch (subtype) {
351 case ICE_IEEE_SUBTYPE_ETS_CFG:
352 ice_parse_ieee_etscfg_tlv(tlv, dcbcfg);
353 break;
354 case ICE_IEEE_SUBTYPE_ETS_REC:
355 ice_parse_ieee_etsrec_tlv(tlv, dcbcfg);
356 break;
357 case ICE_IEEE_SUBTYPE_PFC_CFG:
358 ice_parse_ieee_pfccfg_tlv(tlv, dcbcfg);
359 break;
360 case ICE_IEEE_SUBTYPE_APP_PRI:
361 ice_parse_ieee_app_tlv(tlv, dcbcfg);
362 break;
363 default:
364 break;
365 }
366}
367
368/**
369 * ice_parse_cee_pgcfg_tlv
370 * @tlv: CEE DCBX PG CFG TLV
371 * @dcbcfg: Local store to update ETS CFG data
372 *
373 * Parses CEE DCBX PG CFG TLV
374 */
375static void
376ice_parse_cee_pgcfg_tlv(struct ice_cee_feat_tlv *tlv,
377 struct ice_dcbx_cfg *dcbcfg)
378{
379 struct ice_dcb_ets_cfg *etscfg;
380 u8 *buf = tlv->tlvinfo;
381 u16 offset = 0;
382 int i;
383
384 etscfg = &dcbcfg->etscfg;
385
386 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
387 etscfg->willing = 1;
388
389 etscfg->cbs = 0;
390 /* Priority Group Table (4 octets)
391 * Octets:| 1 | 2 | 3 | 4 |
392 * -----------------------------------------
393 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
394 * -----------------------------------------
395 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
396 * -----------------------------------------
397 */
398 for (i = 0; i < 4; i++) {
399 etscfg->prio_table[i * 2] =
400 ((buf[offset] & ICE_CEE_PGID_PRIO_1_M) >>
401 ICE_CEE_PGID_PRIO_1_S);
402 etscfg->prio_table[i * 2 + 1] =
403 ((buf[offset] & ICE_CEE_PGID_PRIO_0_M) >>
404 ICE_CEE_PGID_PRIO_0_S);
405 offset++;
406 }
407
408 /* PG Percentage Table (8 octets)
409 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
410 * ---------------------------------
411 * |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7|
412 * ---------------------------------
413 */
414 ice_for_each_traffic_class(i) {
415 etscfg->tcbwtable[i] = buf[offset++];
416
417 if (etscfg->prio_table[i] == ICE_CEE_PGID_STRICT)
418 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
419 else
420 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
421 }
422
423 /* Number of TCs supported (1 octet) */
424 etscfg->maxtcs = buf[offset];
425}
426
427/**
428 * ice_parse_cee_pfccfg_tlv
429 * @tlv: CEE DCBX PFC CFG TLV
430 * @dcbcfg: Local store to update PFC CFG data
431 *
432 * Parses CEE DCBX PFC CFG TLV
433 */
434static void
435ice_parse_cee_pfccfg_tlv(struct ice_cee_feat_tlv *tlv,
436 struct ice_dcbx_cfg *dcbcfg)
437{
438 u8 *buf = tlv->tlvinfo;
439
440 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
441 dcbcfg->pfc.willing = 1;
442
443 /* ------------------------
444 * | PFC Enable | PFC TCs |
445 * ------------------------
446 * | 1 octet | 1 octet |
447 */
448 dcbcfg->pfc.pfcena = buf[0];
449 dcbcfg->pfc.pfccap = buf[1];
450}
451
452/**
453 * ice_parse_cee_app_tlv
454 * @tlv: CEE DCBX APP TLV
455 * @dcbcfg: Local store to update APP PRIO data
456 *
457 * Parses CEE DCBX APP PRIO TLV
458 */
459static void
460ice_parse_cee_app_tlv(struct ice_cee_feat_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
461{
462 u16 len, typelen, offset = 0;
463 struct ice_cee_app_prio *app;
464 u8 i;
465
466 typelen = ntohs(tlv->hdr.typelen);
467 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
468
469 dcbcfg->numapps = len / sizeof(*app);
470 if (!dcbcfg->numapps)
471 return;
472 if (dcbcfg->numapps > ICE_DCBX_MAX_APPS)
473 dcbcfg->numapps = ICE_DCBX_MAX_APPS;
474
475 for (i = 0; i < dcbcfg->numapps; i++) {
476 u8 up, selector;
477
478 app = (struct ice_cee_app_prio *)(tlv->tlvinfo + offset);
479 for (up = 0; up < ICE_MAX_USER_PRIORITY; up++)
480 if (app->prio_map & BIT(up))
481 break;
482
483 dcbcfg->app[i].priority = up;
484
485 /* Get Selector from lower 2 bits, and convert to IEEE */
486 selector = (app->upper_oui_sel & ICE_CEE_APP_SELECTOR_M);
487 switch (selector) {
488 case ICE_CEE_APP_SEL_ETHTYPE:
489 dcbcfg->app[i].selector = ICE_APP_SEL_ETHTYPE;
490 break;
491 case ICE_CEE_APP_SEL_TCPIP:
492 dcbcfg->app[i].selector = ICE_APP_SEL_TCPIP;
493 break;
494 default:
495 /* Keep selector as it is for unknown types */
496 dcbcfg->app[i].selector = selector;
497 }
498
499 dcbcfg->app[i].prot_id = ntohs(app->protocol);
500 /* Move to next app */
501 offset += sizeof(*app);
502 }
503}
504
505/**
506 * ice_parse_cee_tlv
507 * @tlv: CEE DCBX TLV
508 * @dcbcfg: Local store to update DCBX config data
509 *
510 * Get the TLV subtype and send it to parsing function
511 * based on the subtype value
512 */
513static void
514ice_parse_cee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
515{
516 struct ice_cee_feat_tlv *sub_tlv;
517 u8 subtype, feat_tlv_count = 0;
518 u16 len, tlvlen, typelen;
519 u32 ouisubtype;
520
521 ouisubtype = ntohl(tlv->ouisubtype);
522 subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >>
523 ICE_LLDP_TLV_SUBTYPE_S);
524 /* Return if not CEE DCBX */
525 if (subtype != ICE_CEE_DCBX_TYPE)
526 return;
527
528 typelen = ntohs(tlv->typelen);
529 tlvlen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
530 len = sizeof(tlv->typelen) + sizeof(ouisubtype) +
531 sizeof(struct ice_cee_ctrl_tlv);
532 /* Return if no CEE DCBX Feature TLVs */
533 if (tlvlen <= len)
534 return;
535
536 sub_tlv = (struct ice_cee_feat_tlv *)((char *)tlv + len);
537 while (feat_tlv_count < ICE_CEE_MAX_FEAT_TYPE) {
538 u16 sublen;
539
540 typelen = ntohs(sub_tlv->hdr.typelen);
541 sublen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
542 subtype = (u8)((typelen & ICE_LLDP_TLV_TYPE_M) >>
543 ICE_LLDP_TLV_TYPE_S);
544 switch (subtype) {
545 case ICE_CEE_SUBTYPE_PG_CFG:
546 ice_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg);
547 break;
548 case ICE_CEE_SUBTYPE_PFC_CFG:
549 ice_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg);
550 break;
551 case ICE_CEE_SUBTYPE_APP_PRI:
552 ice_parse_cee_app_tlv(sub_tlv, dcbcfg);
553 break;
554 default:
555 return; /* Invalid Sub-type return */
556 }
557 feat_tlv_count++;
558 /* Move to next sub TLV */
559 sub_tlv = (struct ice_cee_feat_tlv *)
560 ((char *)sub_tlv + sizeof(sub_tlv->hdr.typelen) +
561 sublen);
562 }
563}
564
565/**
566 * ice_parse_org_tlv
567 * @tlv: Organization specific TLV
568 * @dcbcfg: Local store to update ETS REC data
569 *
570 * Currently only IEEE 802.1Qaz TLV is supported, all others
571 * will be returned
572 */
573static void
574ice_parse_org_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
575{
576 u32 ouisubtype;
577 u32 oui;
578
579 ouisubtype = ntohl(tlv->ouisubtype);
580 oui = ((ouisubtype & ICE_LLDP_TLV_OUI_M) >> ICE_LLDP_TLV_OUI_S);
581 switch (oui) {
582 case ICE_IEEE_8021QAZ_OUI:
583 ice_parse_ieee_tlv(tlv, dcbcfg);
584 break;
585 case ICE_CEE_DCBX_OUI:
586 ice_parse_cee_tlv(tlv, dcbcfg);
587 break;
588 default:
589 break;
590 }
591}
592
593/**
594 * ice_lldp_to_dcb_cfg
595 * @lldpmib: LLDPDU to be parsed
596 * @dcbcfg: store for LLDPDU data
597 *
598 * Parse DCB configuration from the LLDPDU
599 */
600static enum ice_status
601ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg)
602{
603 struct ice_lldp_org_tlv *tlv;
604 enum ice_status ret = 0;
605 u16 offset = 0;
606 u16 typelen;
607 u16 type;
608 u16 len;
609
610 if (!lldpmib || !dcbcfg)
611 return ICE_ERR_PARAM;
612
613 /* set to the start of LLDPDU */
614 lldpmib += ETH_HLEN;
615 tlv = (struct ice_lldp_org_tlv *)lldpmib;
616 while (1) {
617 typelen = ntohs(tlv->typelen);
618 type = ((typelen & ICE_LLDP_TLV_TYPE_M) >> ICE_LLDP_TLV_TYPE_S);
619 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
620 offset += sizeof(typelen) + len;
621
622 /* END TLV or beyond LLDPDU size */
623 if (type == ICE_TLV_TYPE_END || offset > ICE_LLDPDU_SIZE)
624 break;
625
626 switch (type) {
627 case ICE_TLV_TYPE_ORG:
628 ice_parse_org_tlv(tlv, dcbcfg);
629 break;
630 default:
631 break;
632 }
633
634 /* Move to next TLV */
635 tlv = (struct ice_lldp_org_tlv *)
636 ((char *)tlv + sizeof(tlv->typelen) + len);
637 }
638
639 return ret;
640}
641
642/**
643 * ice_aq_get_dcb_cfg
644 * @hw: pointer to the HW struct
645 * @mib_type: MIB type for the query
646 * @bridgetype: bridge type for the query (remote)
647 * @dcbcfg: store for LLDPDU data
648 *
649 * Query DCB configuration from the firmware
650 */
651enum ice_status
652ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype,
653 struct ice_dcbx_cfg *dcbcfg)
654{
655 enum ice_status ret;
656 u8 *lldpmib;
657
658 /* Allocate the LLDPDU */
659 lldpmib = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL);
660 if (!lldpmib)
661 return ICE_ERR_NO_MEMORY;
662
663 ret = ice_aq_get_lldp_mib(hw, bridgetype, mib_type, (void *)lldpmib,
664 ICE_LLDPDU_SIZE, NULL, NULL, NULL);
665
666 if (!ret)
667 /* Parse LLDP MIB to get DCB configuration */
668 ret = ice_lldp_to_dcb_cfg(lldpmib, dcbcfg);
669
670 devm_kfree(ice_hw_to_dev(hw), lldpmib);
671
672 return ret;
673}
674
675/**
676 * ice_aq_start_stop_dcbx - Start/Stop DCBX service in FW
677 * @hw: pointer to the HW struct
678 * @start_dcbx_agent: True if DCBX Agent needs to be started
679 * False if DCBX Agent needs to be stopped
680 * @dcbx_agent_status: FW indicates back the DCBX agent status
681 * True if DCBX Agent is active
682 * False if DCBX Agent is stopped
683 * @cd: pointer to command details structure or NULL
684 *
685 * Start/Stop the embedded dcbx Agent. In case that this wrapper function
686 * returns ICE_SUCCESS, caller will need to check if FW returns back the same
687 * value as stated in dcbx_agent_status, and react accordingly. (0x0A09)
688 */
689enum ice_status
690ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent,
691 bool *dcbx_agent_status, struct ice_sq_cd *cd)
692{
693 struct ice_aqc_lldp_stop_start_specific_agent *cmd;
694 enum ice_status status;
695 struct ice_aq_desc desc;
696 u16 opcode;
697
698 cmd = &desc.params.lldp_agent_ctrl;
699
700 opcode = ice_aqc_opc_lldp_stop_start_specific_agent;
701
702 ice_fill_dflt_direct_cmd_desc(&desc, opcode);
703
704 if (start_dcbx_agent)
705 cmd->command = ICE_AQC_START_STOP_AGENT_START_DCBX;
706
707 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
708
709 *dcbx_agent_status = false;
710
711 if (!status &&
712 cmd->command == ICE_AQC_START_STOP_AGENT_START_DCBX)
713 *dcbx_agent_status = true;
714
715 return status;
716}
717
718/**
719 * ice_aq_get_cee_dcb_cfg
720 * @hw: pointer to the HW struct
721 * @buff: response buffer that stores CEE operational configuration
722 * @cd: pointer to command details structure or NULL
723 *
724 * Get CEE DCBX mode operational configuration from firmware (0x0A07)
725 */
726static enum ice_status
727ice_aq_get_cee_dcb_cfg(struct ice_hw *hw,
728 struct ice_aqc_get_cee_dcb_cfg_resp *buff,
729 struct ice_sq_cd *cd)
730{
731 struct ice_aq_desc desc;
732
733 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_cee_dcb_cfg);
734
735 return ice_aq_send_cmd(hw, &desc, (void *)buff, sizeof(*buff), cd);
736}
737
738/**
739 * ice_cee_to_dcb_cfg
740 * @cee_cfg: pointer to CEE configuration struct
741 * @pi: port information structure
742 *
743 * Convert CEE configuration from firmware to DCB configuration
744 */
745static void
746ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg,
747 struct ice_port_info *pi)
748{
749 u32 status, tlv_status = le32_to_cpu(cee_cfg->tlv_status);
750 u32 ice_aqc_cee_status_mask, ice_aqc_cee_status_shift, j;
751 u8 i, err, sync, oper, app_index, ice_app_sel_type;
752 u16 app_prio = le16_to_cpu(cee_cfg->oper_app_prio);
753 u16 ice_aqc_cee_app_mask, ice_aqc_cee_app_shift;
754 struct ice_dcbx_cfg *cmp_dcbcfg, *dcbcfg;
755 u16 ice_app_prot_id_type;
756
757 dcbcfg = &pi->qos_cfg.local_dcbx_cfg;
758 dcbcfg->dcbx_mode = ICE_DCBX_MODE_CEE;
759 dcbcfg->tlv_status = tlv_status;
760
761 /* CEE PG data */
762 dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
763
764 /* Note that the FW creates the oper_prio_tc nibbles reversed
765 * from those in the CEE Priority Group sub-TLV.
766 */
767 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
768 dcbcfg->etscfg.prio_table[i * 2] =
769 ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_0_M) >>
770 ICE_CEE_PGID_PRIO_0_S);
771 dcbcfg->etscfg.prio_table[i * 2 + 1] =
772 ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_1_M) >>
773 ICE_CEE_PGID_PRIO_1_S);
774 }
775
776 ice_for_each_traffic_class(i) {
777 dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
778
779 if (dcbcfg->etscfg.prio_table[i] == ICE_CEE_PGID_STRICT) {
780 /* Map it to next empty TC */
781 dcbcfg->etscfg.prio_table[i] = cee_cfg->oper_num_tc - 1;
782 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
783 } else {
784 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
785 }
786 }
787
788 /* CEE PFC data */
789 dcbcfg->pfc.pfcena = cee_cfg->oper_pfc_en;
790 dcbcfg->pfc.pfccap = ICE_MAX_TRAFFIC_CLASS;
791
792 /* CEE APP TLV data */
793 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
794 cmp_dcbcfg = &pi->qos_cfg.desired_dcbx_cfg;
795 else
796 cmp_dcbcfg = &pi->qos_cfg.remote_dcbx_cfg;
797
798 app_index = 0;
799 for (i = 0; i < 3; i++) {
800 if (i == 0) {
801 /* FCoE APP */
802 ice_aqc_cee_status_mask = ICE_AQC_CEE_FCOE_STATUS_M;
803 ice_aqc_cee_status_shift = ICE_AQC_CEE_FCOE_STATUS_S;
804 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FCOE_M;
805 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FCOE_S;
806 ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
807 ice_app_prot_id_type = ETH_P_FCOE;
808 } else if (i == 1) {
809 /* iSCSI APP */
810 ice_aqc_cee_status_mask = ICE_AQC_CEE_ISCSI_STATUS_M;
811 ice_aqc_cee_status_shift = ICE_AQC_CEE_ISCSI_STATUS_S;
812 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_ISCSI_M;
813 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_ISCSI_S;
814 ice_app_sel_type = ICE_APP_SEL_TCPIP;
815 ice_app_prot_id_type = ISCSI_LISTEN_PORT;
816
817 for (j = 0; j < cmp_dcbcfg->numapps; j++) {
818 u16 prot_id = cmp_dcbcfg->app[j].prot_id;
819 u8 sel = cmp_dcbcfg->app[j].selector;
820
821 if (sel == ICE_APP_SEL_TCPIP &&
822 (prot_id == ISCSI_LISTEN_PORT ||
823 prot_id == ICE_APP_PROT_ID_ISCSI_860)) {
824 ice_app_prot_id_type = prot_id;
825 break;
826 }
827 }
828 } else {
829 /* FIP APP */
830 ice_aqc_cee_status_mask = ICE_AQC_CEE_FIP_STATUS_M;
831 ice_aqc_cee_status_shift = ICE_AQC_CEE_FIP_STATUS_S;
832 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FIP_M;
833 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FIP_S;
834 ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
835 ice_app_prot_id_type = ETH_P_FIP;
836 }
837
838 status = (tlv_status & ice_aqc_cee_status_mask) >>
839 ice_aqc_cee_status_shift;
840 err = (status & ICE_TLV_STATUS_ERR) ? 1 : 0;
841 sync = (status & ICE_TLV_STATUS_SYNC) ? 1 : 0;
842 oper = (status & ICE_TLV_STATUS_OPER) ? 1 : 0;
843 /* Add FCoE/iSCSI/FIP APP if Error is False and
844 * Oper/Sync is True
845 */
846 if (!err && sync && oper) {
847 dcbcfg->app[app_index].priority =
848 (app_prio & ice_aqc_cee_app_mask) >>
849 ice_aqc_cee_app_shift;
850 dcbcfg->app[app_index].selector = ice_app_sel_type;
851 dcbcfg->app[app_index].prot_id = ice_app_prot_id_type;
852 app_index++;
853 }
854 }
855
856 dcbcfg->numapps = app_index;
857}
858
859/**
860 * ice_get_ieee_or_cee_dcb_cfg
861 * @pi: port information structure
862 * @dcbx_mode: mode of DCBX (IEEE or CEE)
863 *
864 * Get IEEE or CEE mode DCB configuration from the Firmware
865 */
866static enum ice_status
867ice_get_ieee_or_cee_dcb_cfg(struct ice_port_info *pi, u8 dcbx_mode)
868{
869 struct ice_dcbx_cfg *dcbx_cfg = NULL;
870 enum ice_status ret;
871
872 if (!pi)
873 return ICE_ERR_PARAM;
874
875 if (dcbx_mode == ICE_DCBX_MODE_IEEE)
876 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
877 else if (dcbx_mode == ICE_DCBX_MODE_CEE)
878 dcbx_cfg = &pi->qos_cfg.desired_dcbx_cfg;
879
880 /* Get Local DCB Config in case of ICE_DCBX_MODE_IEEE
881 * or get CEE DCB Desired Config in case of ICE_DCBX_MODE_CEE
882 */
883 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_LOCAL,
884 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
885 if (ret)
886 goto out;
887
888 /* Get Remote DCB Config */
889 dcbx_cfg = &pi->qos_cfg.remote_dcbx_cfg;
890 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_REMOTE,
891 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
892 /* Don't treat ENOENT as an error for Remote MIBs */
893 if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT)
894 ret = 0;
895
896out:
897 return ret;
898}
899
900/**
901 * ice_get_dcb_cfg
902 * @pi: port information structure
903 *
904 * Get DCB configuration from the Firmware
905 */
906enum ice_status ice_get_dcb_cfg(struct ice_port_info *pi)
907{
908 struct ice_aqc_get_cee_dcb_cfg_resp cee_cfg;
909 struct ice_dcbx_cfg *dcbx_cfg;
910 enum ice_status ret;
911
912 if (!pi)
913 return ICE_ERR_PARAM;
914
915 ret = ice_aq_get_cee_dcb_cfg(pi->hw, &cee_cfg, NULL);
916 if (!ret) {
917 /* CEE mode */
918 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_CEE);
919 ice_cee_to_dcb_cfg(&cee_cfg, pi);
920 } else if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) {
921 /* CEE mode not enabled try querying IEEE data */
922 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
923 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE;
924 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_IEEE);
925 }
926
927 return ret;
928}
929
930/**
931 * ice_init_dcb
932 * @hw: pointer to the HW struct
933 * @enable_mib_change: enable MIB change event
934 *
935 * Update DCB configuration from the Firmware
936 */
937enum ice_status ice_init_dcb(struct ice_hw *hw, bool enable_mib_change)
938{
939 struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg;
940 enum ice_status ret = 0;
941
942 if (!hw->func_caps.common_cap.dcb)
943 return ICE_ERR_NOT_SUPPORTED;
944
945 qos_cfg->is_sw_lldp = true;
946
947 /* Get DCBX status */
948 qos_cfg->dcbx_status = ice_get_dcbx_status(hw);
949
950 if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DONE ||
951 qos_cfg->dcbx_status == ICE_DCBX_STATUS_IN_PROGRESS ||
952 qos_cfg->dcbx_status == ICE_DCBX_STATUS_NOT_STARTED) {
953 /* Get current DCBX configuration */
954 ret = ice_get_dcb_cfg(hw->port_info);
955 if (ret)
956 return ret;
957 qos_cfg->is_sw_lldp = false;
958 } else if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS) {
959 return ICE_ERR_NOT_READY;
960 }
961
962 /* Configure the LLDP MIB change event */
963 if (enable_mib_change) {
964 ret = ice_aq_cfg_lldp_mib_change(hw, true, NULL);
965 if (ret)
966 qos_cfg->is_sw_lldp = true;
967 }
968
969 return ret;
970}
971
972/**
973 * ice_cfg_lldp_mib_change
974 * @hw: pointer to the HW struct
975 * @ena_mib: enable/disable MIB change event
976 *
977 * Configure (disable/enable) MIB
978 */
979enum ice_status ice_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_mib)
980{
981 struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg;
982 enum ice_status ret;
983
984 if (!hw->func_caps.common_cap.dcb)
985 return ICE_ERR_NOT_SUPPORTED;
986
987 /* Get DCBX status */
988 qos_cfg->dcbx_status = ice_get_dcbx_status(hw);
989
990 if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS)
991 return ICE_ERR_NOT_READY;
992
993 ret = ice_aq_cfg_lldp_mib_change(hw, ena_mib, NULL);
994 if (!ret)
995 qos_cfg->is_sw_lldp = !ena_mib;
996
997 return ret;
998}
999
1000/**
1001 * ice_add_ieee_ets_common_tlv
1002 * @buf: Data buffer to be populated with ice_dcb_ets_cfg data
1003 * @ets_cfg: Container for ice_dcb_ets_cfg data
1004 *
1005 * Populate the TLV buffer with ice_dcb_ets_cfg data
1006 */
1007static void
1008ice_add_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
1009{
1010 u8 priority0, priority1;
1011 u8 offset = 0;
1012 int i;
1013
1014 /* Priority Assignment Table (4 octets)
1015 * Octets:| 1 | 2 | 3 | 4 |
1016 * -----------------------------------------
1017 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
1018 * -----------------------------------------
1019 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
1020 * -----------------------------------------
1021 */
1022 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
1023 priority0 = ets_cfg->prio_table[i * 2] & 0xF;
1024 priority1 = ets_cfg->prio_table[i * 2 + 1] & 0xF;
1025 buf[offset] = (priority0 << ICE_IEEE_ETS_PRIO_1_S) | priority1;
1026 offset++;
1027 }
1028
1029 /* TC Bandwidth Table (8 octets)
1030 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1031 * ---------------------------------
1032 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1033 * ---------------------------------
1034 *
1035 * TSA Assignment Table (8 octets)
1036 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1037 * ---------------------------------
1038 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1039 * ---------------------------------
1040 */
1041 ice_for_each_traffic_class(i) {
1042 buf[offset] = ets_cfg->tcbwtable[i];
1043 buf[ICE_MAX_TRAFFIC_CLASS + offset] = ets_cfg->tsatable[i];
1044 offset++;
1045 }
1046}
1047
1048/**
1049 * ice_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format
1050 * @tlv: Fill the ETS config data in IEEE format
1051 * @dcbcfg: Local store which holds the DCB Config
1052 *
1053 * Prepare IEEE 802.1Qaz ETS CFG TLV
1054 */
1055static void
1056ice_add_ieee_ets_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1057{
1058 struct ice_dcb_ets_cfg *etscfg;
1059 u8 *buf = tlv->tlvinfo;
1060 u8 maxtcwilling = 0;
1061 u32 ouisubtype;
1062 u16 typelen;
1063
1064 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1065 ICE_IEEE_ETS_TLV_LEN);
1066 tlv->typelen = htons(typelen);
1067
1068 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1069 ICE_IEEE_SUBTYPE_ETS_CFG);
1070 tlv->ouisubtype = htonl(ouisubtype);
1071
1072 /* First Octet post subtype
1073 * --------------------------
1074 * |will-|CBS | Re- | Max |
1075 * |ing | |served| TCs |
1076 * --------------------------
1077 * |1bit | 1bit|3 bits|3bits|
1078 */
1079 etscfg = &dcbcfg->etscfg;
1080 if (etscfg->willing)
1081 maxtcwilling = BIT(ICE_IEEE_ETS_WILLING_S);
1082 maxtcwilling |= etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M;
1083 buf[0] = maxtcwilling;
1084
1085 /* Begin adding at Priority Assignment Table (offset 1 in buf) */
1086 ice_add_ieee_ets_common_tlv(&buf[1], etscfg);
1087}
1088
1089/**
1090 * ice_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format
1091 * @tlv: Fill ETS Recommended TLV in IEEE format
1092 * @dcbcfg: Local store which holds the DCB Config
1093 *
1094 * Prepare IEEE 802.1Qaz ETS REC TLV
1095 */
1096static void
1097ice_add_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
1098 struct ice_dcbx_cfg *dcbcfg)
1099{
1100 struct ice_dcb_ets_cfg *etsrec;
1101 u8 *buf = tlv->tlvinfo;
1102 u32 ouisubtype;
1103 u16 typelen;
1104
1105 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1106 ICE_IEEE_ETS_TLV_LEN);
1107 tlv->typelen = htons(typelen);
1108
1109 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1110 ICE_IEEE_SUBTYPE_ETS_REC);
1111 tlv->ouisubtype = htonl(ouisubtype);
1112
1113 etsrec = &dcbcfg->etsrec;
1114
1115 /* First Octet is reserved */
1116 /* Begin adding at Priority Assignment Table (offset 1 in buf) */
1117 ice_add_ieee_ets_common_tlv(&buf[1], etsrec);
1118}
1119
1120/**
1121 * ice_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format
1122 * @tlv: Fill PFC TLV in IEEE format
1123 * @dcbcfg: Local store which holds the PFC CFG data
1124 *
1125 * Prepare IEEE 802.1Qaz PFC CFG TLV
1126 */
1127static void
1128ice_add_ieee_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1129{
1130 u8 *buf = tlv->tlvinfo;
1131 u32 ouisubtype;
1132 u16 typelen;
1133
1134 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1135 ICE_IEEE_PFC_TLV_LEN);
1136 tlv->typelen = htons(typelen);
1137
1138 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1139 ICE_IEEE_SUBTYPE_PFC_CFG);
1140 tlv->ouisubtype = htonl(ouisubtype);
1141
1142 /* ----------------------------------------
1143 * |will-|MBC | Re- | PFC | PFC Enable |
1144 * |ing | |served| cap | |
1145 * -----------------------------------------
1146 * |1bit | 1bit|2 bits|4bits| 1 octet |
1147 */
1148 if (dcbcfg->pfc.willing)
1149 buf[0] = BIT(ICE_IEEE_PFC_WILLING_S);
1150
1151 if (dcbcfg->pfc.mbc)
1152 buf[0] |= BIT(ICE_IEEE_PFC_MBC_S);
1153
1154 buf[0] |= dcbcfg->pfc.pfccap & 0xF;
1155 buf[1] = dcbcfg->pfc.pfcena;
1156}
1157
1158/**
1159 * ice_add_ieee_app_pri_tlv - Prepare APP TLV in IEEE format
1160 * @tlv: Fill APP TLV in IEEE format
1161 * @dcbcfg: Local store which holds the APP CFG data
1162 *
1163 * Prepare IEEE 802.1Qaz APP CFG TLV
1164 */
1165static void
1166ice_add_ieee_app_pri_tlv(struct ice_lldp_org_tlv *tlv,
1167 struct ice_dcbx_cfg *dcbcfg)
1168{
1169 u16 typelen, len, offset = 0;
1170 u8 priority, selector, i = 0;
1171 u8 *buf = tlv->tlvinfo;
1172 u32 ouisubtype;
1173
1174 /* No APP TLVs then just return */
1175 if (dcbcfg->numapps == 0)
1176 return;
1177 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1178 ICE_IEEE_SUBTYPE_APP_PRI);
1179 tlv->ouisubtype = htonl(ouisubtype);
1180
1181 /* Move offset to App Priority Table */
1182 offset++;
1183 /* Application Priority Table (3 octets)
1184 * Octets:| 1 | 2 | 3 |
1185 * -----------------------------------------
1186 * |Priority|Rsrvd| Sel | Protocol ID |
1187 * -----------------------------------------
1188 * Bits:|23 21|20 19|18 16|15 0|
1189 * -----------------------------------------
1190 */
1191 while (i < dcbcfg->numapps) {
1192 priority = dcbcfg->app[i].priority & 0x7;
1193 selector = dcbcfg->app[i].selector & 0x7;
1194 buf[offset] = (priority << ICE_IEEE_APP_PRIO_S) | selector;
1195 buf[offset + 1] = (dcbcfg->app[i].prot_id >> 0x8) & 0xFF;
1196 buf[offset + 2] = dcbcfg->app[i].prot_id & 0xFF;
1197 /* Move to next app */
1198 offset += 3;
1199 i++;
1200 if (i >= ICE_DCBX_MAX_APPS)
1201 break;
1202 }
1203 /* len includes size of ouisubtype + 1 reserved + 3*numapps */
1204 len = sizeof(tlv->ouisubtype) + 1 + (i * 3);
1205 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | (len & 0x1FF));
1206 tlv->typelen = htons(typelen);
1207}
1208
1209/**
1210 * ice_add_dcb_tlv - Add all IEEE TLVs
1211 * @tlv: Fill TLV data in IEEE format
1212 * @dcbcfg: Local store which holds the DCB Config
1213 * @tlvid: Type of IEEE TLV
1214 *
1215 * Add tlv information
1216 */
1217static void
1218ice_add_dcb_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg,
1219 u16 tlvid)
1220{
1221 switch (tlvid) {
1222 case ICE_IEEE_TLV_ID_ETS_CFG:
1223 ice_add_ieee_ets_tlv(tlv, dcbcfg);
1224 break;
1225 case ICE_IEEE_TLV_ID_ETS_REC:
1226 ice_add_ieee_etsrec_tlv(tlv, dcbcfg);
1227 break;
1228 case ICE_IEEE_TLV_ID_PFC_CFG:
1229 ice_add_ieee_pfc_tlv(tlv, dcbcfg);
1230 break;
1231 case ICE_IEEE_TLV_ID_APP_PRI:
1232 ice_add_ieee_app_pri_tlv(tlv, dcbcfg);
1233 break;
1234 default:
1235 break;
1236 }
1237}
1238
1239/**
1240 * ice_dcb_cfg_to_lldp - Convert DCB configuration to MIB format
1241 * @lldpmib: pointer to the HW struct
1242 * @miblen: length of LLDP MIB
1243 * @dcbcfg: Local store which holds the DCB Config
1244 *
1245 * Convert the DCB configuration to MIB format
1246 */
1247static void
1248ice_dcb_cfg_to_lldp(u8 *lldpmib, u16 *miblen, struct ice_dcbx_cfg *dcbcfg)
1249{
1250 u16 len, offset = 0, tlvid = ICE_TLV_ID_START;
1251 struct ice_lldp_org_tlv *tlv;
1252 u16 typelen;
1253
1254 tlv = (struct ice_lldp_org_tlv *)lldpmib;
1255 while (1) {
1256 ice_add_dcb_tlv(tlv, dcbcfg, tlvid++);
1257 typelen = ntohs(tlv->typelen);
1258 len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S;
1259 if (len)
1260 offset += len + 2;
1261 /* END TLV or beyond LLDPDU size */
1262 if (tlvid >= ICE_TLV_ID_END_OF_LLDPPDU ||
1263 offset > ICE_LLDPDU_SIZE)
1264 break;
1265 /* Move to next TLV */
1266 if (len)
1267 tlv = (struct ice_lldp_org_tlv *)
1268 ((char *)tlv + sizeof(tlv->typelen) + len);
1269 }
1270 *miblen = offset;
1271}
1272
1273/**
1274 * ice_set_dcb_cfg - Set the local LLDP MIB to FW
1275 * @pi: port information structure
1276 *
1277 * Set DCB configuration to the Firmware
1278 */
1279enum ice_status ice_set_dcb_cfg(struct ice_port_info *pi)
1280{
1281 u8 mib_type, *lldpmib = NULL;
1282 struct ice_dcbx_cfg *dcbcfg;
1283 enum ice_status ret;
1284 struct ice_hw *hw;
1285 u16 miblen;
1286
1287 if (!pi)
1288 return ICE_ERR_PARAM;
1289
1290 hw = pi->hw;
1291
1292 /* update the HW local config */
1293 dcbcfg = &pi->qos_cfg.local_dcbx_cfg;
1294 /* Allocate the LLDPDU */
1295 lldpmib = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL);
1296 if (!lldpmib)
1297 return ICE_ERR_NO_MEMORY;
1298
1299 mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB;
1300 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
1301 mib_type |= SET_LOCAL_MIB_TYPE_CEE_NON_WILLING;
1302
1303 ice_dcb_cfg_to_lldp(lldpmib, &miblen, dcbcfg);
1304 ret = ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, miblen,
1305 NULL);
1306
1307 devm_kfree(ice_hw_to_dev(hw), lldpmib);
1308
1309 return ret;
1310}
1311
1312/**
1313 * ice_aq_query_port_ets - query port ETS configuration
1314 * @pi: port information structure
1315 * @buf: pointer to buffer
1316 * @buf_size: buffer size in bytes
1317 * @cd: pointer to command details structure or NULL
1318 *
1319 * query current port ETS configuration
1320 */
1321static enum ice_status
1322ice_aq_query_port_ets(struct ice_port_info *pi,
1323 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1324 struct ice_sq_cd *cd)
1325{
1326 struct ice_aqc_query_port_ets *cmd;
1327 struct ice_aq_desc desc;
1328 enum ice_status status;
1329
1330 if (!pi)
1331 return ICE_ERR_PARAM;
1332 cmd = &desc.params.port_ets;
1333 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_query_port_ets);
1334 cmd->port_teid = pi->root->info.node_teid;
1335
1336 status = ice_aq_send_cmd(pi->hw, &desc, buf, buf_size, cd);
1337 return status;
1338}
1339
1340/**
1341 * ice_update_port_tc_tree_cfg - update TC tree configuration
1342 * @pi: port information structure
1343 * @buf: pointer to buffer
1344 *
1345 * update the SW DB with the new TC changes
1346 */
1347static enum ice_status
1348ice_update_port_tc_tree_cfg(struct ice_port_info *pi,
1349 struct ice_aqc_port_ets_elem *buf)
1350{
1351 struct ice_sched_node *node, *tc_node;
1352 struct ice_aqc_txsched_elem_data elem;
1353 enum ice_status status = 0;
1354 u32 teid1, teid2;
1355 u8 i, j;
1356
1357 if (!pi)
1358 return ICE_ERR_PARAM;
1359 /* suspend the missing TC nodes */
1360 for (i = 0; i < pi->root->num_children; i++) {
1361 teid1 = le32_to_cpu(pi->root->children[i]->info.node_teid);
1362 ice_for_each_traffic_class(j) {
1363 teid2 = le32_to_cpu(buf->tc_node_teid[j]);
1364 if (teid1 == teid2)
1365 break;
1366 }
1367 if (j < ICE_MAX_TRAFFIC_CLASS)
1368 continue;
1369 /* TC is missing */
1370 pi->root->children[i]->in_use = false;
1371 }
1372 /* add the new TC nodes */
1373 ice_for_each_traffic_class(j) {
1374 teid2 = le32_to_cpu(buf->tc_node_teid[j]);
1375 if (teid2 == ICE_INVAL_TEID)
1376 continue;
1377 /* Is it already present in the tree ? */
1378 for (i = 0; i < pi->root->num_children; i++) {
1379 tc_node = pi->root->children[i];
1380 if (!tc_node)
1381 continue;
1382 teid1 = le32_to_cpu(tc_node->info.node_teid);
1383 if (teid1 == teid2) {
1384 tc_node->tc_num = j;
1385 tc_node->in_use = true;
1386 break;
1387 }
1388 }
1389 if (i < pi->root->num_children)
1390 continue;
1391 /* new TC */
1392 status = ice_sched_query_elem(pi->hw, teid2, &elem);
1393 if (!status)
1394 status = ice_sched_add_node(pi, 1, &elem);
1395 if (status)
1396 break;
1397 /* update the TC number */
1398 node = ice_sched_find_node_by_teid(pi->root, teid2);
1399 if (node)
1400 node->tc_num = j;
1401 }
1402 return status;
1403}
1404
1405/**
1406 * ice_query_port_ets - query port ETS configuration
1407 * @pi: port information structure
1408 * @buf: pointer to buffer
1409 * @buf_size: buffer size in bytes
1410 * @cd: pointer to command details structure or NULL
1411 *
1412 * query current port ETS configuration and update the
1413 * SW DB with the TC changes
1414 */
1415enum ice_status
1416ice_query_port_ets(struct ice_port_info *pi,
1417 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1418 struct ice_sq_cd *cd)
1419{
1420 enum ice_status status;
1421
1422 mutex_lock(&pi->sched_lock);
1423 status = ice_aq_query_port_ets(pi, buf, buf_size, cd);
1424 if (!status)
1425 status = ice_update_port_tc_tree_cfg(pi, buf);
1426 mutex_unlock(&pi->sched_lock);
1427 return status;
1428}