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[ceph.git] / ceph / src / seastar / dpdk / drivers / net / ice / base / ice_dcb.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2001-2019
3 */
4
5 #include "ice_common.h"
6 #include "ice_sched.h"
7 #include "ice_dcb.h"
8
9 /**
10 * ice_aq_get_lldp_mib
11 * @hw: pointer to the HW struct
12 * @bridge_type: type of bridge requested
13 * @mib_type: Local, Remote or both Local and Remote MIBs
14 * @buf: pointer to the caller-supplied buffer to store the MIB block
15 * @buf_size: size of the buffer (in bytes)
16 * @local_len: length of the returned Local LLDP MIB
17 * @remote_len: length of the returned Remote LLDP MIB
18 * @cd: pointer to command details structure or NULL
19 *
20 * Requests the complete LLDP MIB (entire packet). (0x0A00)
21 */
22 enum ice_status
23 ice_aq_get_lldp_mib(struct ice_hw *hw, u8 bridge_type, u8 mib_type, void *buf,
24 u16 buf_size, u16 *local_len, u16 *remote_len,
25 struct ice_sq_cd *cd)
26 {
27 struct ice_aqc_lldp_get_mib *cmd;
28 struct ice_aq_desc desc;
29 enum ice_status status;
30
31 cmd = &desc.params.lldp_get_mib;
32
33 if (buf_size == 0 || !buf)
34 return ICE_ERR_PARAM;
35
36 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_get_mib);
37
38 cmd->type = mib_type & ICE_AQ_LLDP_MIB_TYPE_M;
39 cmd->type |= (bridge_type << ICE_AQ_LLDP_BRID_TYPE_S) &
40 ICE_AQ_LLDP_BRID_TYPE_M;
41
42 desc.datalen = CPU_TO_LE16(buf_size);
43
44 status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
45 if (!status) {
46 if (local_len)
47 *local_len = LE16_TO_CPU(cmd->local_len);
48 if (remote_len)
49 *remote_len = LE16_TO_CPU(cmd->remote_len);
50 }
51
52 return status;
53 }
54
55 /**
56 * ice_aq_cfg_lldp_mib_change
57 * @hw: pointer to the HW struct
58 * @ena_update: Enable or Disable event posting
59 * @cd: pointer to command details structure or NULL
60 *
61 * Enable or Disable posting of an event on ARQ when LLDP MIB
62 * associated with the interface changes (0x0A01)
63 */
64 enum ice_status
65 ice_aq_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_update,
66 struct ice_sq_cd *cd)
67 {
68 struct ice_aqc_lldp_set_mib_change *cmd;
69 struct ice_aq_desc desc;
70
71 cmd = &desc.params.lldp_set_event;
72
73 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_set_mib_change);
74
75 if (!ena_update)
76 cmd->command |= ICE_AQ_LLDP_MIB_UPDATE_DIS;
77
78 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
79 }
80
81 /**
82 * ice_aq_stop_lldp
83 * @hw: pointer to the HW struct
84 * @shutdown_lldp_agent: True if LLDP Agent needs to be Shutdown
85 * False if LLDP Agent needs to be Stopped
86 * @cd: pointer to command details structure or NULL
87 *
88 * Stop or Shutdown the embedded LLDP Agent (0x0A05)
89 */
90 enum ice_status
91 ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent,
92 struct ice_sq_cd *cd)
93 {
94 struct ice_aqc_lldp_stop *cmd;
95 struct ice_aq_desc desc;
96
97 cmd = &desc.params.lldp_stop;
98
99 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_stop);
100
101 if (shutdown_lldp_agent)
102 cmd->command |= ICE_AQ_LLDP_AGENT_SHUTDOWN;
103
104 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
105 }
106
107 /**
108 * ice_aq_start_lldp
109 * @hw: pointer to the HW struct
110 * @cd: pointer to command details structure or NULL
111 *
112 * Start the embedded LLDP Agent on all ports. (0x0A06)
113 */
114 enum ice_status ice_aq_start_lldp(struct ice_hw *hw, struct ice_sq_cd *cd)
115 {
116 struct ice_aqc_lldp_start *cmd;
117 struct ice_aq_desc desc;
118
119 cmd = &desc.params.lldp_start;
120
121 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_start);
122
123 cmd->command = ICE_AQ_LLDP_AGENT_START;
124
125 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
126 }
127
128 /**
129 * ice_aq_set_lldp_mib - Set the LLDP MIB
130 * @hw: pointer to the HW struct
131 * @mib_type: Local, Remote or both Local and Remote MIBs
132 * @buf: pointer to the caller-supplied buffer to store the MIB block
133 * @buf_size: size of the buffer (in bytes)
134 * @cd: pointer to command details structure or NULL
135 *
136 * Set the LLDP MIB. (0x0A08)
137 */
138 enum ice_status
139 ice_aq_set_lldp_mib(struct ice_hw *hw, u8 mib_type, void *buf, u16 buf_size,
140 struct ice_sq_cd *cd)
141 {
142 struct ice_aqc_lldp_set_local_mib *cmd;
143 struct ice_aq_desc desc;
144
145 cmd = &desc.params.lldp_set_mib;
146
147 if (buf_size == 0 || !buf)
148 return ICE_ERR_PARAM;
149
150 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_set_local_mib);
151
152 desc.flags |= CPU_TO_LE16((u16)ICE_AQ_FLAG_RD);
153 desc.datalen = CPU_TO_LE16(buf_size);
154
155 cmd->type = mib_type;
156 cmd->length = CPU_TO_LE16(buf_size);
157
158 return ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
159 }
160
161 /**
162 * ice_get_dcbx_status
163 * @hw: pointer to the HW struct
164 *
165 * Get the DCBX status from the Firmware
166 */
167 u8 ice_get_dcbx_status(struct ice_hw *hw)
168 {
169 u32 reg;
170
171 reg = rd32(hw, PRTDCB_GENS);
172 return (u8)((reg & PRTDCB_GENS_DCBX_STATUS_M) >>
173 PRTDCB_GENS_DCBX_STATUS_S);
174 }
175
176 /**
177 * ice_parse_ieee_ets_common_tlv
178 * @buf: Data buffer to be parsed for ETS CFG/REC data
179 * @ets_cfg: Container to store parsed data
180 *
181 * Parses the common data of IEEE 802.1Qaz ETS CFG/REC TLV
182 */
183 static void
184 ice_parse_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
185 {
186 u8 offset = 0;
187 int i;
188
189 /* Priority Assignment Table (4 octets)
190 * Octets:| 1 | 2 | 3 | 4 |
191 * -----------------------------------------
192 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
193 * -----------------------------------------
194 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
195 * -----------------------------------------
196 */
197 for (i = 0; i < 4; i++) {
198 ets_cfg->prio_table[i * 2] =
199 ((buf[offset] & ICE_IEEE_ETS_PRIO_1_M) >>
200 ICE_IEEE_ETS_PRIO_1_S);
201 ets_cfg->prio_table[i * 2 + 1] =
202 ((buf[offset] & ICE_IEEE_ETS_PRIO_0_M) >>
203 ICE_IEEE_ETS_PRIO_0_S);
204 offset++;
205 }
206
207 /* TC Bandwidth Table (8 octets)
208 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
209 * ---------------------------------
210 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
211 * ---------------------------------
212 *
213 * TSA Assignment Table (8 octets)
214 * Octets:| 9 | 10| 11| 12| 13| 14| 15| 16|
215 * ---------------------------------
216 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
217 * ---------------------------------
218 */
219 ice_for_each_traffic_class(i) {
220 ets_cfg->tcbwtable[i] = buf[offset];
221 ets_cfg->tsatable[i] = buf[ICE_MAX_TRAFFIC_CLASS + offset++];
222 }
223 }
224
225 /**
226 * ice_parse_ieee_etscfg_tlv
227 * @tlv: IEEE 802.1Qaz ETS CFG TLV
228 * @dcbcfg: Local store to update ETS CFG data
229 *
230 * Parses IEEE 802.1Qaz ETS CFG TLV
231 */
232 static void
233 ice_parse_ieee_etscfg_tlv(struct ice_lldp_org_tlv *tlv,
234 struct ice_dcbx_cfg *dcbcfg)
235 {
236 struct ice_dcb_ets_cfg *etscfg;
237 u8 *buf = tlv->tlvinfo;
238
239 /* First Octet post subtype
240 * --------------------------
241 * |will-|CBS | Re- | Max |
242 * |ing | |served| TCs |
243 * --------------------------
244 * |1bit | 1bit|3 bits|3bits|
245 */
246 etscfg = &dcbcfg->etscfg;
247 etscfg->willing = ((buf[0] & ICE_IEEE_ETS_WILLING_M) >>
248 ICE_IEEE_ETS_WILLING_S);
249 etscfg->cbs = ((buf[0] & ICE_IEEE_ETS_CBS_M) >> ICE_IEEE_ETS_CBS_S);
250 etscfg->maxtcs = ((buf[0] & ICE_IEEE_ETS_MAXTC_M) >>
251 ICE_IEEE_ETS_MAXTC_S);
252
253 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */
254 ice_parse_ieee_ets_common_tlv(&buf[1], etscfg);
255 }
256
257 /**
258 * ice_parse_ieee_etsrec_tlv
259 * @tlv: IEEE 802.1Qaz ETS REC TLV
260 * @dcbcfg: Local store to update ETS REC data
261 *
262 * Parses IEEE 802.1Qaz ETS REC TLV
263 */
264 static void
265 ice_parse_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
266 struct ice_dcbx_cfg *dcbcfg)
267 {
268 u8 *buf = tlv->tlvinfo;
269
270 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */
271 ice_parse_ieee_ets_common_tlv(&buf[1], &dcbcfg->etsrec);
272 }
273
274 /**
275 * ice_parse_ieee_pfccfg_tlv
276 * @tlv: IEEE 802.1Qaz PFC CFG TLV
277 * @dcbcfg: Local store to update PFC CFG data
278 *
279 * Parses IEEE 802.1Qaz PFC CFG TLV
280 */
281 static void
282 ice_parse_ieee_pfccfg_tlv(struct ice_lldp_org_tlv *tlv,
283 struct ice_dcbx_cfg *dcbcfg)
284 {
285 u8 *buf = tlv->tlvinfo;
286
287 /* ----------------------------------------
288 * |will-|MBC | Re- | PFC | PFC Enable |
289 * |ing | |served| cap | |
290 * -----------------------------------------
291 * |1bit | 1bit|2 bits|4bits| 1 octet |
292 */
293 dcbcfg->pfc.willing = ((buf[0] & ICE_IEEE_PFC_WILLING_M) >>
294 ICE_IEEE_PFC_WILLING_S);
295 dcbcfg->pfc.mbc = ((buf[0] & ICE_IEEE_PFC_MBC_M) >> ICE_IEEE_PFC_MBC_S);
296 dcbcfg->pfc.pfccap = ((buf[0] & ICE_IEEE_PFC_CAP_M) >>
297 ICE_IEEE_PFC_CAP_S);
298 dcbcfg->pfc.pfcena = buf[1];
299 }
300
301 /**
302 * ice_parse_ieee_app_tlv
303 * @tlv: IEEE 802.1Qaz APP TLV
304 * @dcbcfg: Local store to update APP PRIO data
305 *
306 * Parses IEEE 802.1Qaz APP PRIO TLV
307 */
308 static void
309 ice_parse_ieee_app_tlv(struct ice_lldp_org_tlv *tlv,
310 struct ice_dcbx_cfg *dcbcfg)
311 {
312 u16 offset = 0;
313 u16 typelen;
314 int i = 0;
315 u16 len;
316 u8 *buf;
317
318 typelen = NTOHS(tlv->typelen);
319 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
320 buf = tlv->tlvinfo;
321
322 /* Removing sizeof(ouisubtype) and reserved byte from len.
323 * Remaining len div 3 is number of APP TLVs.
324 */
325 len -= (sizeof(tlv->ouisubtype) + 1);
326
327 /* Move offset to App Priority Table */
328 offset++;
329
330 /* Application Priority Table (3 octets)
331 * Octets:| 1 | 2 | 3 |
332 * -----------------------------------------
333 * |Priority|Rsrvd| Sel | Protocol ID |
334 * -----------------------------------------
335 * Bits:|23 21|20 19|18 16|15 0|
336 * -----------------------------------------
337 */
338 while (offset < len) {
339 dcbcfg->app[i].priority = ((buf[offset] &
340 ICE_IEEE_APP_PRIO_M) >>
341 ICE_IEEE_APP_PRIO_S);
342 dcbcfg->app[i].selector = ((buf[offset] &
343 ICE_IEEE_APP_SEL_M) >>
344 ICE_IEEE_APP_SEL_S);
345 dcbcfg->app[i].prot_id = (buf[offset + 1] << 0x8) |
346 buf[offset + 2];
347 /* Move to next app */
348 offset += 3;
349 i++;
350 if (i >= ICE_DCBX_MAX_APPS)
351 break;
352 }
353
354 dcbcfg->numapps = i;
355 }
356
357 /**
358 * ice_parse_ieee_tlv
359 * @tlv: IEEE 802.1Qaz TLV
360 * @dcbcfg: Local store to update ETS REC data
361 *
362 * Get the TLV subtype and send it to parsing function
363 * based on the subtype value
364 */
365 static void
366 ice_parse_ieee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
367 {
368 u32 ouisubtype;
369 u8 subtype;
370
371 ouisubtype = NTOHL(tlv->ouisubtype);
372 subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >>
373 ICE_LLDP_TLV_SUBTYPE_S);
374 switch (subtype) {
375 case ICE_IEEE_SUBTYPE_ETS_CFG:
376 ice_parse_ieee_etscfg_tlv(tlv, dcbcfg);
377 break;
378 case ICE_IEEE_SUBTYPE_ETS_REC:
379 ice_parse_ieee_etsrec_tlv(tlv, dcbcfg);
380 break;
381 case ICE_IEEE_SUBTYPE_PFC_CFG:
382 ice_parse_ieee_pfccfg_tlv(tlv, dcbcfg);
383 break;
384 case ICE_IEEE_SUBTYPE_APP_PRI:
385 ice_parse_ieee_app_tlv(tlv, dcbcfg);
386 break;
387 default:
388 break;
389 }
390 }
391
392 /**
393 * ice_parse_cee_pgcfg_tlv
394 * @tlv: CEE DCBX PG CFG TLV
395 * @dcbcfg: Local store to update ETS CFG data
396 *
397 * Parses CEE DCBX PG CFG TLV
398 */
399 static void
400 ice_parse_cee_pgcfg_tlv(struct ice_cee_feat_tlv *tlv,
401 struct ice_dcbx_cfg *dcbcfg)
402 {
403 struct ice_dcb_ets_cfg *etscfg;
404 u8 *buf = tlv->tlvinfo;
405 u16 offset = 0;
406 int i;
407
408 etscfg = &dcbcfg->etscfg;
409
410 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
411 etscfg->willing = 1;
412
413 etscfg->cbs = 0;
414 /* Priority Group Table (4 octets)
415 * Octets:| 1 | 2 | 3 | 4 |
416 * -----------------------------------------
417 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
418 * -----------------------------------------
419 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
420 * -----------------------------------------
421 */
422 for (i = 0; i < 4; i++) {
423 etscfg->prio_table[i * 2] =
424 ((buf[offset] & ICE_CEE_PGID_PRIO_1_M) >>
425 ICE_CEE_PGID_PRIO_1_S);
426 etscfg->prio_table[i * 2 + 1] =
427 ((buf[offset] & ICE_CEE_PGID_PRIO_0_M) >>
428 ICE_CEE_PGID_PRIO_0_S);
429 offset++;
430 }
431
432 /* PG Percentage Table (8 octets)
433 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
434 * ---------------------------------
435 * |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7|
436 * ---------------------------------
437 */
438 ice_for_each_traffic_class(i)
439 etscfg->tcbwtable[i] = buf[offset++];
440
441 /* Number of TCs supported (1 octet) */
442 etscfg->maxtcs = buf[offset];
443 }
444
445 /**
446 * ice_parse_cee_pfccfg_tlv
447 * @tlv: CEE DCBX PFC CFG TLV
448 * @dcbcfg: Local store to update PFC CFG data
449 *
450 * Parses CEE DCBX PFC CFG TLV
451 */
452 static void
453 ice_parse_cee_pfccfg_tlv(struct ice_cee_feat_tlv *tlv,
454 struct ice_dcbx_cfg *dcbcfg)
455 {
456 u8 *buf = tlv->tlvinfo;
457
458 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
459 dcbcfg->pfc.willing = 1;
460
461 /* ------------------------
462 * | PFC Enable | PFC TCs |
463 * ------------------------
464 * | 1 octet | 1 octet |
465 */
466 dcbcfg->pfc.pfcena = buf[0];
467 dcbcfg->pfc.pfccap = buf[1];
468 }
469
470 /**
471 * ice_parse_cee_app_tlv
472 * @tlv: CEE DCBX APP TLV
473 * @dcbcfg: Local store to update APP PRIO data
474 *
475 * Parses CEE DCBX APP PRIO TLV
476 */
477 static void
478 ice_parse_cee_app_tlv(struct ice_cee_feat_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
479 {
480 u16 len, typelen, offset = 0;
481 struct ice_cee_app_prio *app;
482 u8 i;
483
484 typelen = NTOHS(tlv->hdr.typelen);
485 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
486
487 dcbcfg->numapps = len / sizeof(*app);
488 if (!dcbcfg->numapps)
489 return;
490 if (dcbcfg->numapps > ICE_DCBX_MAX_APPS)
491 dcbcfg->numapps = ICE_DCBX_MAX_APPS;
492
493 for (i = 0; i < dcbcfg->numapps; i++) {
494 u8 up, selector;
495
496 app = (struct ice_cee_app_prio *)(tlv->tlvinfo + offset);
497 for (up = 0; up < ICE_MAX_USER_PRIORITY; up++)
498 if (app->prio_map & BIT(up))
499 break;
500
501 dcbcfg->app[i].priority = up;
502
503 /* Get Selector from lower 2 bits, and convert to IEEE */
504 selector = (app->upper_oui_sel & ICE_CEE_APP_SELECTOR_M);
505 switch (selector) {
506 case ICE_CEE_APP_SEL_ETHTYPE:
507 dcbcfg->app[i].selector = ICE_APP_SEL_ETHTYPE;
508 break;
509 case ICE_CEE_APP_SEL_TCPIP:
510 dcbcfg->app[i].selector = ICE_APP_SEL_TCPIP;
511 break;
512 default:
513 /* Keep selector as it is for unknown types */
514 dcbcfg->app[i].selector = selector;
515 }
516
517 dcbcfg->app[i].prot_id = NTOHS(app->protocol);
518 /* Move to next app */
519 offset += sizeof(*app);
520 }
521 }
522
523 /**
524 * ice_parse_cee_tlv
525 * @tlv: CEE DCBX TLV
526 * @dcbcfg: Local store to update DCBX config data
527 *
528 * Get the TLV subtype and send it to parsing function
529 * based on the subtype value
530 */
531 static void
532 ice_parse_cee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
533 {
534 struct ice_cee_feat_tlv *sub_tlv;
535 u8 subtype, feat_tlv_count = 0;
536 u16 len, tlvlen, typelen;
537 u32 ouisubtype;
538
539 ouisubtype = NTOHL(tlv->ouisubtype);
540 subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >>
541 ICE_LLDP_TLV_SUBTYPE_S);
542 /* Return if not CEE DCBX */
543 if (subtype != ICE_CEE_DCBX_TYPE)
544 return;
545
546 typelen = NTOHS(tlv->typelen);
547 tlvlen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
548 len = sizeof(tlv->typelen) + sizeof(ouisubtype) +
549 sizeof(struct ice_cee_ctrl_tlv);
550 /* Return if no CEE DCBX Feature TLVs */
551 if (tlvlen <= len)
552 return;
553
554 sub_tlv = (struct ice_cee_feat_tlv *)((char *)tlv + len);
555 while (feat_tlv_count < ICE_CEE_MAX_FEAT_TYPE) {
556 u16 sublen;
557
558 typelen = NTOHS(sub_tlv->hdr.typelen);
559 sublen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
560 subtype = (u8)((typelen & ICE_LLDP_TLV_TYPE_M) >>
561 ICE_LLDP_TLV_TYPE_S);
562 switch (subtype) {
563 case ICE_CEE_SUBTYPE_PG_CFG:
564 ice_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg);
565 break;
566 case ICE_CEE_SUBTYPE_PFC_CFG:
567 ice_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg);
568 break;
569 case ICE_CEE_SUBTYPE_APP_PRI:
570 ice_parse_cee_app_tlv(sub_tlv, dcbcfg);
571 break;
572 default:
573 return; /* Invalid Sub-type return */
574 }
575 feat_tlv_count++;
576 /* Move to next sub TLV */
577 sub_tlv = (struct ice_cee_feat_tlv *)
578 ((char *)sub_tlv + sizeof(sub_tlv->hdr.typelen) +
579 sublen);
580 }
581 }
582
583 /**
584 * ice_parse_org_tlv
585 * @tlv: Organization specific TLV
586 * @dcbcfg: Local store to update ETS REC data
587 *
588 * Currently only IEEE 802.1Qaz TLV is supported, all others
589 * will be returned
590 */
591 static void
592 ice_parse_org_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
593 {
594 u32 ouisubtype;
595 u32 oui;
596
597 ouisubtype = NTOHL(tlv->ouisubtype);
598 oui = ((ouisubtype & ICE_LLDP_TLV_OUI_M) >> ICE_LLDP_TLV_OUI_S);
599 switch (oui) {
600 case ICE_IEEE_8021QAZ_OUI:
601 ice_parse_ieee_tlv(tlv, dcbcfg);
602 break;
603 case ICE_CEE_DCBX_OUI:
604 ice_parse_cee_tlv(tlv, dcbcfg);
605 break;
606 default:
607 break;
608 }
609 }
610
611 /**
612 * ice_lldp_to_dcb_cfg
613 * @lldpmib: LLDPDU to be parsed
614 * @dcbcfg: store for LLDPDU data
615 *
616 * Parse DCB configuration from the LLDPDU
617 */
618 enum ice_status ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg)
619 {
620 struct ice_lldp_org_tlv *tlv;
621 enum ice_status ret = ICE_SUCCESS;
622 u16 offset = 0;
623 u16 typelen;
624 u16 type;
625 u16 len;
626
627 if (!lldpmib || !dcbcfg)
628 return ICE_ERR_PARAM;
629
630 /* set to the start of LLDPDU */
631 lldpmib += ETH_HEADER_LEN;
632 tlv = (struct ice_lldp_org_tlv *)lldpmib;
633 while (1) {
634 typelen = NTOHS(tlv->typelen);
635 type = ((typelen & ICE_LLDP_TLV_TYPE_M) >> ICE_LLDP_TLV_TYPE_S);
636 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
637 offset += sizeof(typelen) + len;
638
639 /* END TLV or beyond LLDPDU size */
640 if (type == ICE_TLV_TYPE_END || offset > ICE_LLDPDU_SIZE)
641 break;
642
643 switch (type) {
644 case ICE_TLV_TYPE_ORG:
645 ice_parse_org_tlv(tlv, dcbcfg);
646 break;
647 default:
648 break;
649 }
650
651 /* Move to next TLV */
652 tlv = (struct ice_lldp_org_tlv *)
653 ((char *)tlv + sizeof(tlv->typelen) + len);
654 }
655
656 return ret;
657 }
658
659 /**
660 * ice_aq_get_dcb_cfg
661 * @hw: pointer to the HW struct
662 * @mib_type: mib type for the query
663 * @bridgetype: bridge type for the query (remote)
664 * @dcbcfg: store for LLDPDU data
665 *
666 * Query DCB configuration from the firmware
667 */
668 enum ice_status
669 ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype,
670 struct ice_dcbx_cfg *dcbcfg)
671 {
672 enum ice_status ret;
673 u8 *lldpmib;
674
675 /* Allocate the LLDPDU */
676 lldpmib = (u8 *)ice_malloc(hw, ICE_LLDPDU_SIZE);
677 if (!lldpmib)
678 return ICE_ERR_NO_MEMORY;
679
680 ret = ice_aq_get_lldp_mib(hw, bridgetype, mib_type, (void *)lldpmib,
681 ICE_LLDPDU_SIZE, NULL, NULL, NULL);
682
683 if (ret == ICE_SUCCESS)
684 /* Parse LLDP MIB to get DCB configuration */
685 ret = ice_lldp_to_dcb_cfg(lldpmib, dcbcfg);
686
687 ice_free(hw, lldpmib);
688
689 return ret;
690 }
691
692 /**
693 * ice_aq_start_stop_dcbx - Start/Stop DCBx service in FW
694 * @hw: pointer to the HW struct
695 * @start_dcbx_agent: True if DCBx Agent needs to be started
696 * False if DCBx Agent needs to be stopped
697 * @dcbx_agent_status: FW indicates back the DCBx agent status
698 * True if DCBx Agent is active
699 * False if DCBx Agent is stopped
700 * @cd: pointer to command details structure or NULL
701 *
702 * Start/Stop the embedded dcbx Agent. In case that this wrapper function
703 * returns ICE_SUCCESS, caller will need to check if FW returns back the same
704 * value as stated in dcbx_agent_status, and react accordingly. (0x0A09)
705 */
706 enum ice_status
707 ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent,
708 bool *dcbx_agent_status, struct ice_sq_cd *cd)
709 {
710 struct ice_aqc_lldp_stop_start_specific_agent *cmd;
711 enum ice_status status;
712 struct ice_aq_desc desc;
713 u16 opcode;
714
715 cmd = &desc.params.lldp_agent_ctrl;
716
717 opcode = ice_aqc_opc_lldp_stop_start_specific_agent;
718
719 ice_fill_dflt_direct_cmd_desc(&desc, opcode);
720
721 if (start_dcbx_agent)
722 cmd->command = ICE_AQC_START_STOP_AGENT_START_DCBX;
723
724 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
725
726 *dcbx_agent_status = false;
727
728 if (status == ICE_SUCCESS &&
729 cmd->command == ICE_AQC_START_STOP_AGENT_START_DCBX)
730 *dcbx_agent_status = true;
731
732 return status;
733 }
734
735 /**
736 * ice_aq_get_cee_dcb_cfg
737 * @hw: pointer to the HW struct
738 * @buff: response buffer that stores CEE operational configuration
739 * @cd: pointer to command details structure or NULL
740 *
741 * Get CEE DCBX mode operational configuration from firmware (0x0A07)
742 */
743 enum ice_status
744 ice_aq_get_cee_dcb_cfg(struct ice_hw *hw,
745 struct ice_aqc_get_cee_dcb_cfg_resp *buff,
746 struct ice_sq_cd *cd)
747 {
748 struct ice_aq_desc desc;
749
750 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_cee_dcb_cfg);
751
752 return ice_aq_send_cmd(hw, &desc, (void *)buff, sizeof(*buff), cd);
753 }
754
755 /**
756 * ice_cee_to_dcb_cfg
757 * @cee_cfg: pointer to CEE configuration struct
758 * @dcbcfg: DCB configuration struct
759 *
760 * Convert CEE configuration from firmware to DCB configuration
761 */
762 static void
763 ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg,
764 struct ice_dcbx_cfg *dcbcfg)
765 {
766 u32 status, tlv_status = LE32_TO_CPU(cee_cfg->tlv_status);
767 u32 ice_aqc_cee_status_mask, ice_aqc_cee_status_shift;
768 u16 app_prio = LE16_TO_CPU(cee_cfg->oper_app_prio);
769 u8 i, err, sync, oper, app_index, ice_app_sel_type;
770 u16 ice_aqc_cee_app_mask, ice_aqc_cee_app_shift;
771 u16 ice_app_prot_id_type;
772
773 /* CEE PG data to ETS config */
774 dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
775
776 /* Note that the FW creates the oper_prio_tc nibbles reversed
777 * from those in the CEE Priority Group sub-TLV.
778 */
779 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
780 dcbcfg->etscfg.prio_table[i * 2] =
781 ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_0_M) >>
782 ICE_CEE_PGID_PRIO_0_S);
783 dcbcfg->etscfg.prio_table[i * 2 + 1] =
784 ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_1_M) >>
785 ICE_CEE_PGID_PRIO_1_S);
786 }
787
788 ice_for_each_traffic_class(i) {
789 dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
790
791 if (dcbcfg->etscfg.prio_table[i] == ICE_CEE_PGID_STRICT) {
792 /* Map it to next empty TC */
793 dcbcfg->etscfg.prio_table[i] = cee_cfg->oper_num_tc - 1;
794 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
795 } else {
796 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
797 }
798 }
799
800 /* CEE PFC data to ETS config */
801 dcbcfg->pfc.pfcena = cee_cfg->oper_pfc_en;
802 dcbcfg->pfc.pfccap = ICE_MAX_TRAFFIC_CLASS;
803
804 app_index = 0;
805 for (i = 0; i < 3; i++) {
806 if (i == 0) {
807 /* FCoE APP */
808 ice_aqc_cee_status_mask = ICE_AQC_CEE_FCOE_STATUS_M;
809 ice_aqc_cee_status_shift = ICE_AQC_CEE_FCOE_STATUS_S;
810 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FCOE_M;
811 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FCOE_S;
812 ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
813 ice_app_prot_id_type = ICE_APP_PROT_ID_FCOE;
814 } else if (i == 1) {
815 /* iSCSI APP */
816 ice_aqc_cee_status_mask = ICE_AQC_CEE_ISCSI_STATUS_M;
817 ice_aqc_cee_status_shift = ICE_AQC_CEE_ISCSI_STATUS_S;
818 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_ISCSI_M;
819 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_ISCSI_S;
820 ice_app_sel_type = ICE_APP_SEL_TCPIP;
821 ice_app_prot_id_type = ICE_APP_PROT_ID_ISCSI;
822 } else {
823 /* FIP APP */
824 ice_aqc_cee_status_mask = ICE_AQC_CEE_FIP_STATUS_M;
825 ice_aqc_cee_status_shift = ICE_AQC_CEE_FIP_STATUS_S;
826 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FIP_M;
827 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FIP_S;
828 ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
829 ice_app_prot_id_type = ICE_APP_PROT_ID_FIP;
830 }
831
832 status = (tlv_status & ice_aqc_cee_status_mask) >>
833 ice_aqc_cee_status_shift;
834 err = (status & ICE_TLV_STATUS_ERR) ? 1 : 0;
835 sync = (status & ICE_TLV_STATUS_SYNC) ? 1 : 0;
836 oper = (status & ICE_TLV_STATUS_OPER) ? 1 : 0;
837 /* Add FCoE/iSCSI/FIP APP if Error is False and
838 * Oper/Sync is True
839 */
840 if (!err && sync && oper) {
841 dcbcfg->app[app_index].priority =
842 (app_prio & ice_aqc_cee_app_mask) >>
843 ice_aqc_cee_app_shift;
844 dcbcfg->app[app_index].selector = ice_app_sel_type;
845 dcbcfg->app[app_index].prot_id = ice_app_prot_id_type;
846 app_index++;
847 }
848 }
849
850 dcbcfg->numapps = app_index;
851 }
852
853 /**
854 * ice_get_ieee_dcb_cfg
855 * @pi: port information structure
856 * @dcbx_mode: mode of DCBX (IEEE or CEE)
857 *
858 * Get IEEE or CEE mode DCB configuration from the Firmware
859 */
860 STATIC enum ice_status
861 ice_get_ieee_or_cee_dcb_cfg(struct ice_port_info *pi, u8 dcbx_mode)
862 {
863 struct ice_dcbx_cfg *dcbx_cfg = NULL;
864 enum ice_status ret;
865
866 if (!pi)
867 return ICE_ERR_PARAM;
868
869 if (dcbx_mode == ICE_DCBX_MODE_IEEE)
870 dcbx_cfg = &pi->local_dcbx_cfg;
871 else if (dcbx_mode == ICE_DCBX_MODE_CEE)
872 dcbx_cfg = &pi->desired_dcbx_cfg;
873
874 /* Get Local DCB Config in case of ICE_DCBX_MODE_IEEE
875 * or get CEE DCB Desired Config in case of ICE_DCBX_MODE_CEE
876 */
877 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_LOCAL,
878 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
879 if (ret)
880 goto out;
881
882 /* Get Remote DCB Config */
883 dcbx_cfg = &pi->remote_dcbx_cfg;
884 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_REMOTE,
885 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
886 /* Don't treat ENOENT as an error for Remote MIBs */
887 if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT)
888 ret = ICE_SUCCESS;
889
890 out:
891 return ret;
892 }
893
894 /**
895 * ice_get_dcb_cfg
896 * @pi: port information structure
897 *
898 * Get DCB configuration from the Firmware
899 */
900 enum ice_status ice_get_dcb_cfg(struct ice_port_info *pi)
901 {
902 struct ice_aqc_get_cee_dcb_cfg_resp cee_cfg;
903 struct ice_dcbx_cfg *dcbx_cfg;
904 enum ice_status ret;
905
906 if (!pi)
907 return ICE_ERR_PARAM;
908
909 ret = ice_aq_get_cee_dcb_cfg(pi->hw, &cee_cfg, NULL);
910 if (ret == ICE_SUCCESS) {
911 /* CEE mode */
912 dcbx_cfg = &pi->local_dcbx_cfg;
913 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_CEE;
914 dcbx_cfg->tlv_status = LE32_TO_CPU(cee_cfg.tlv_status);
915 ice_cee_to_dcb_cfg(&cee_cfg, dcbx_cfg);
916 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_CEE);
917 } else if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) {
918 /* CEE mode not enabled try querying IEEE data */
919 dcbx_cfg = &pi->local_dcbx_cfg;
920 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE;
921 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_IEEE);
922 }
923
924 return ret;
925 }
926
927 /**
928 * ice_init_dcb
929 * @hw: pointer to the HW struct
930 *
931 * Update DCB configuration from the Firmware
932 */
933 enum ice_status ice_init_dcb(struct ice_hw *hw)
934 {
935 struct ice_port_info *pi = hw->port_info;
936 enum ice_status ret = ICE_SUCCESS;
937
938 if (!hw->func_caps.common_cap.dcb)
939 return ICE_ERR_NOT_SUPPORTED;
940
941 pi->is_sw_lldp = true;
942
943 /* Get DCBX status */
944 pi->dcbx_status = ice_get_dcbx_status(hw);
945
946 if (pi->dcbx_status == ICE_DCBX_STATUS_DONE ||
947 pi->dcbx_status == ICE_DCBX_STATUS_IN_PROGRESS) {
948 /* Get current DCBX configuration */
949 ret = ice_get_dcb_cfg(pi);
950 pi->is_sw_lldp = (hw->adminq.sq_last_status == ICE_AQ_RC_EPERM);
951 if (ret)
952 return ret;
953 } else if (pi->dcbx_status == ICE_DCBX_STATUS_DIS) {
954 return ICE_ERR_NOT_READY;
955 } else if (pi->dcbx_status == ICE_DCBX_STATUS_MULTIPLE_PEERS) {
956 }
957
958 /* Configure the LLDP MIB change event */
959 ret = ice_aq_cfg_lldp_mib_change(hw, true, NULL);
960 if (!ret)
961 pi->is_sw_lldp = false;
962
963 return ret;
964 }
965
966 /**
967 * ice_add_ieee_ets_common_tlv
968 * @buf: Data buffer to be populated with ice_dcb_ets_cfg data
969 * @ets_cfg: Container for ice_dcb_ets_cfg data
970 *
971 * Populate the TLV buffer with ice_dcb_ets_cfg data
972 */
973 static void
974 ice_add_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
975 {
976 u8 priority0, priority1;
977 u8 offset = 0;
978 int i;
979
980 /* Priority Assignment Table (4 octets)
981 * Octets:| 1 | 2 | 3 | 4 |
982 * -----------------------------------------
983 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
984 * -----------------------------------------
985 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
986 * -----------------------------------------
987 */
988 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
989 priority0 = ets_cfg->prio_table[i * 2] & 0xF;
990 priority1 = ets_cfg->prio_table[i * 2 + 1] & 0xF;
991 buf[offset] = (priority0 << ICE_IEEE_ETS_PRIO_1_S) | priority1;
992 offset++;
993 }
994
995 /* TC Bandwidth Table (8 octets)
996 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
997 * ---------------------------------
998 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
999 * ---------------------------------
1000 *
1001 * TSA Assignment Table (8 octets)
1002 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1003 * ---------------------------------
1004 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1005 * ---------------------------------
1006 */
1007 ice_for_each_traffic_class(i) {
1008 buf[offset] = ets_cfg->tcbwtable[i];
1009 buf[ICE_MAX_TRAFFIC_CLASS + offset] = ets_cfg->tsatable[i];
1010 offset++;
1011 }
1012 }
1013
1014 /**
1015 * ice_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format
1016 * @tlv: Fill the ETS config data in IEEE format
1017 * @dcbcfg: Local store which holds the DCB Config
1018 *
1019 * Prepare IEEE 802.1Qaz ETS CFG TLV
1020 */
1021 static void
1022 ice_add_ieee_ets_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1023 {
1024 struct ice_dcb_ets_cfg *etscfg;
1025 u8 *buf = tlv->tlvinfo;
1026 u8 maxtcwilling = 0;
1027 u32 ouisubtype;
1028 u16 typelen;
1029
1030 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1031 ICE_IEEE_ETS_TLV_LEN);
1032 tlv->typelen = HTONS(typelen);
1033
1034 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1035 ICE_IEEE_SUBTYPE_ETS_CFG);
1036 tlv->ouisubtype = HTONL(ouisubtype);
1037
1038 /* First Octet post subtype
1039 * --------------------------
1040 * |will-|CBS | Re- | Max |
1041 * |ing | |served| TCs |
1042 * --------------------------
1043 * |1bit | 1bit|3 bits|3bits|
1044 */
1045 etscfg = &dcbcfg->etscfg;
1046 if (etscfg->willing)
1047 maxtcwilling = BIT(ICE_IEEE_ETS_WILLING_S);
1048 maxtcwilling |= etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M;
1049 buf[0] = maxtcwilling;
1050
1051 /* Begin adding at Priority Assignment Table (offset 1 in buf) */
1052 ice_add_ieee_ets_common_tlv(&buf[1], etscfg);
1053 }
1054
1055 /**
1056 * ice_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format
1057 * @tlv: Fill ETS Recommended TLV in IEEE format
1058 * @dcbcfg: Local store which holds the DCB Config
1059 *
1060 * Prepare IEEE 802.1Qaz ETS REC TLV
1061 */
1062 static void
1063 ice_add_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
1064 struct ice_dcbx_cfg *dcbcfg)
1065 {
1066 struct ice_dcb_ets_cfg *etsrec;
1067 u8 *buf = tlv->tlvinfo;
1068 u32 ouisubtype;
1069 u16 typelen;
1070
1071 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1072 ICE_IEEE_ETS_TLV_LEN);
1073 tlv->typelen = HTONS(typelen);
1074
1075 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1076 ICE_IEEE_SUBTYPE_ETS_REC);
1077 tlv->ouisubtype = HTONL(ouisubtype);
1078
1079 etsrec = &dcbcfg->etsrec;
1080
1081 /* First Octet is reserved */
1082 /* Begin adding at Priority Assignment Table (offset 1 in buf) */
1083 ice_add_ieee_ets_common_tlv(&buf[1], etsrec);
1084 }
1085
1086 /**
1087 * ice_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format
1088 * @tlv: Fill PFC TLV in IEEE format
1089 * @dcbcfg: Local store which holds the PFC CFG data
1090 *
1091 * Prepare IEEE 802.1Qaz PFC CFG TLV
1092 */
1093 static void
1094 ice_add_ieee_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1095 {
1096 u8 *buf = tlv->tlvinfo;
1097 u32 ouisubtype;
1098 u16 typelen;
1099
1100 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1101 ICE_IEEE_PFC_TLV_LEN);
1102 tlv->typelen = HTONS(typelen);
1103
1104 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1105 ICE_IEEE_SUBTYPE_PFC_CFG);
1106 tlv->ouisubtype = HTONL(ouisubtype);
1107
1108 /* ----------------------------------------
1109 * |will-|MBC | Re- | PFC | PFC Enable |
1110 * |ing | |served| cap | |
1111 * -----------------------------------------
1112 * |1bit | 1bit|2 bits|4bits| 1 octet |
1113 */
1114 if (dcbcfg->pfc.willing)
1115 buf[0] = BIT(ICE_IEEE_PFC_WILLING_S);
1116
1117 if (dcbcfg->pfc.mbc)
1118 buf[0] |= BIT(ICE_IEEE_PFC_MBC_S);
1119
1120 buf[0] |= dcbcfg->pfc.pfccap & 0xF;
1121 buf[1] = dcbcfg->pfc.pfcena;
1122 }
1123
1124 /**
1125 * ice_add_ieee_app_pri_tlv - Prepare APP TLV in IEEE format
1126 * @tlv: Fill APP TLV in IEEE format
1127 * @dcbcfg: Local store which holds the APP CFG data
1128 *
1129 * Prepare IEEE 802.1Qaz APP CFG TLV
1130 */
1131 static void
1132 ice_add_ieee_app_pri_tlv(struct ice_lldp_org_tlv *tlv,
1133 struct ice_dcbx_cfg *dcbcfg)
1134 {
1135 u16 typelen, len, offset = 0;
1136 u8 priority, selector, i = 0;
1137 u8 *buf = tlv->tlvinfo;
1138 u32 ouisubtype;
1139
1140 /* No APP TLVs then just return */
1141 if (dcbcfg->numapps == 0)
1142 return;
1143 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1144 ICE_IEEE_SUBTYPE_APP_PRI);
1145 tlv->ouisubtype = HTONL(ouisubtype);
1146
1147 /* Move offset to App Priority Table */
1148 offset++;
1149 /* Application Priority Table (3 octets)
1150 * Octets:| 1 | 2 | 3 |
1151 * -----------------------------------------
1152 * |Priority|Rsrvd| Sel | Protocol ID |
1153 * -----------------------------------------
1154 * Bits:|23 21|20 19|18 16|15 0|
1155 * -----------------------------------------
1156 */
1157 while (i < dcbcfg->numapps) {
1158 priority = dcbcfg->app[i].priority & 0x7;
1159 selector = dcbcfg->app[i].selector & 0x7;
1160 buf[offset] = (priority << ICE_IEEE_APP_PRIO_S) | selector;
1161 buf[offset + 1] = (dcbcfg->app[i].prot_id >> 0x8) & 0xFF;
1162 buf[offset + 2] = dcbcfg->app[i].prot_id & 0xFF;
1163 /* Move to next app */
1164 offset += 3;
1165 i++;
1166 if (i >= ICE_DCBX_MAX_APPS)
1167 break;
1168 }
1169 /* len includes size of ouisubtype + 1 reserved + 3*numapps */
1170 len = sizeof(tlv->ouisubtype) + 1 + (i * 3);
1171 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | (len & 0x1FF));
1172 tlv->typelen = HTONS(typelen);
1173 }
1174
1175 /**
1176 * ice_add_dcb_tlv - Add all IEEE TLVs
1177 * @tlv: Fill TLV data in IEEE format
1178 * @dcbcfg: Local store which holds the DCB Config
1179 * @tlvid: Type of IEEE TLV
1180 *
1181 * Add tlv information
1182 */
1183 static void
1184 ice_add_dcb_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg,
1185 u16 tlvid)
1186 {
1187 switch (tlvid) {
1188 case ICE_IEEE_TLV_ID_ETS_CFG:
1189 ice_add_ieee_ets_tlv(tlv, dcbcfg);
1190 break;
1191 case ICE_IEEE_TLV_ID_ETS_REC:
1192 ice_add_ieee_etsrec_tlv(tlv, dcbcfg);
1193 break;
1194 case ICE_IEEE_TLV_ID_PFC_CFG:
1195 ice_add_ieee_pfc_tlv(tlv, dcbcfg);
1196 break;
1197 case ICE_IEEE_TLV_ID_APP_PRI:
1198 ice_add_ieee_app_pri_tlv(tlv, dcbcfg);
1199 break;
1200 default:
1201 break;
1202 }
1203 }
1204
1205 /**
1206 * ice_dcb_cfg_to_lldp - Convert DCB configuration to MIB format
1207 * @lldpmib: pointer to the HW struct
1208 * @miblen: length of LLDP mib
1209 * @dcbcfg: Local store which holds the DCB Config
1210 *
1211 * Convert the DCB configuration to MIB format
1212 */
1213 void ice_dcb_cfg_to_lldp(u8 *lldpmib, u16 *miblen, struct ice_dcbx_cfg *dcbcfg)
1214 {
1215 u16 len, offset = 0, tlvid = ICE_TLV_ID_START;
1216 struct ice_lldp_org_tlv *tlv;
1217 u16 typelen;
1218
1219 tlv = (struct ice_lldp_org_tlv *)lldpmib;
1220 while (1) {
1221 ice_add_dcb_tlv(tlv, dcbcfg, tlvid++);
1222 typelen = NTOHS(tlv->typelen);
1223 len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S;
1224 if (len)
1225 offset += len + 2;
1226 /* END TLV or beyond LLDPDU size */
1227 if (tlvid >= ICE_TLV_ID_END_OF_LLDPPDU ||
1228 offset > ICE_LLDPDU_SIZE)
1229 break;
1230 /* Move to next TLV */
1231 if (len)
1232 tlv = (struct ice_lldp_org_tlv *)
1233 ((char *)tlv + sizeof(tlv->typelen) + len);
1234 }
1235 *miblen = offset;
1236 }
1237
1238 /**
1239 * ice_set_dcb_cfg - Set the local LLDP MIB to FW
1240 * @pi: port information structure
1241 *
1242 * Set DCB configuration to the Firmware
1243 */
1244 enum ice_status ice_set_dcb_cfg(struct ice_port_info *pi)
1245 {
1246 u8 mib_type, *lldpmib = NULL;
1247 struct ice_dcbx_cfg *dcbcfg;
1248 enum ice_status ret;
1249 struct ice_hw *hw;
1250 u16 miblen;
1251
1252 if (!pi)
1253 return ICE_ERR_PARAM;
1254
1255 hw = pi->hw;
1256
1257 /* update the HW local config */
1258 dcbcfg = &pi->local_dcbx_cfg;
1259 /* Allocate the LLDPDU */
1260 lldpmib = (u8 *)ice_malloc(hw, ICE_LLDPDU_SIZE);
1261 if (!lldpmib)
1262 return ICE_ERR_NO_MEMORY;
1263
1264 mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB;
1265 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
1266 mib_type |= SET_LOCAL_MIB_TYPE_CEE_NON_WILLING;
1267
1268 ice_dcb_cfg_to_lldp(lldpmib, &miblen, dcbcfg);
1269 ret = ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, miblen,
1270 NULL);
1271
1272 ice_free(hw, lldpmib);
1273
1274 return ret;
1275 }
1276
1277 /**
1278 * ice_aq_query_port_ets - query port ets configuration
1279 * @pi: port information structure
1280 * @buf: pointer to buffer
1281 * @buf_size: buffer size in bytes
1282 * @cd: pointer to command details structure or NULL
1283 *
1284 * query current port ets configuration
1285 */
1286 enum ice_status
1287 ice_aq_query_port_ets(struct ice_port_info *pi,
1288 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1289 struct ice_sq_cd *cd)
1290 {
1291 struct ice_aqc_query_port_ets *cmd;
1292 struct ice_aq_desc desc;
1293 enum ice_status status;
1294
1295 if (!pi)
1296 return ICE_ERR_PARAM;
1297 cmd = &desc.params.port_ets;
1298 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_query_port_ets);
1299 cmd->port_teid = pi->root->info.node_teid;
1300
1301 status = ice_aq_send_cmd(pi->hw, &desc, buf, buf_size, cd);
1302 return status;
1303 }
1304
1305 /**
1306 * ice_update_port_tc_tree_cfg - update TC tree configuration
1307 * @pi: port information structure
1308 * @buf: pointer to buffer
1309 *
1310 * update the SW DB with the new TC changes
1311 */
1312 enum ice_status
1313 ice_update_port_tc_tree_cfg(struct ice_port_info *pi,
1314 struct ice_aqc_port_ets_elem *buf)
1315 {
1316 struct ice_sched_node *node, *tc_node;
1317 struct ice_aqc_get_elem elem;
1318 enum ice_status status = ICE_SUCCESS;
1319 u32 teid1, teid2;
1320 u8 i, j;
1321
1322 if (!pi)
1323 return ICE_ERR_PARAM;
1324 /* suspend the missing TC nodes */
1325 for (i = 0; i < pi->root->num_children; i++) {
1326 teid1 = LE32_TO_CPU(pi->root->children[i]->info.node_teid);
1327 ice_for_each_traffic_class(j) {
1328 teid2 = LE32_TO_CPU(buf->tc_node_teid[j]);
1329 if (teid1 == teid2)
1330 break;
1331 }
1332 if (j < ICE_MAX_TRAFFIC_CLASS)
1333 continue;
1334 /* TC is missing */
1335 pi->root->children[i]->in_use = false;
1336 }
1337 /* add the new TC nodes */
1338 ice_for_each_traffic_class(j) {
1339 teid2 = LE32_TO_CPU(buf->tc_node_teid[j]);
1340 if (teid2 == ICE_INVAL_TEID)
1341 continue;
1342 /* Is it already present in the tree ? */
1343 for (i = 0; i < pi->root->num_children; i++) {
1344 tc_node = pi->root->children[i];
1345 if (!tc_node)
1346 continue;
1347 teid1 = LE32_TO_CPU(tc_node->info.node_teid);
1348 if (teid1 == teid2) {
1349 tc_node->tc_num = j;
1350 tc_node->in_use = true;
1351 break;
1352 }
1353 }
1354 if (i < pi->root->num_children)
1355 continue;
1356 /* new TC */
1357 status = ice_sched_query_elem(pi->hw, teid2, &elem);
1358 if (!status)
1359 status = ice_sched_add_node(pi, 1, &elem.generic[0]);
1360 if (status)
1361 break;
1362 /* update the TC number */
1363 node = ice_sched_find_node_by_teid(pi->root, teid2);
1364 if (node)
1365 node->tc_num = j;
1366 }
1367 return status;
1368 }
1369
1370 /**
1371 * ice_query_port_ets - query port ets configuration
1372 * @pi: port information structure
1373 * @buf: pointer to buffer
1374 * @buf_size: buffer size in bytes
1375 * @cd: pointer to command details structure or NULL
1376 *
1377 * query current port ets configuration and update the
1378 * SW DB with the TC changes
1379 */
1380 enum ice_status
1381 ice_query_port_ets(struct ice_port_info *pi,
1382 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1383 struct ice_sq_cd *cd)
1384 {
1385 enum ice_status status;
1386
1387 ice_acquire_lock(&pi->sched_lock);
1388 status = ice_aq_query_port_ets(pi, buf, buf_size, cd);
1389 if (!status)
1390 status = ice_update_port_tc_tree_cfg(pi, buf);
1391 ice_release_lock(&pi->sched_lock);
1392 return status;
1393 }
Ceph